1. The utility model provides a heat accumulation formula biomass gasification heating system, its characterized in that includes biomass gasification subsystem (A), living beings gas combustion subsystem (B), phase change heat accumulation subsystem (C), heating subsystem (D) and heating control subsystem (E), wherein:

the biomass gasification subsystem (A) can gasify biomass raw materials, output biomass gas, collect gasification waste heat generated in the biomass gasification process and output the gasification waste heat; the biomass combustion subsystem (B) can utilize biomass gas to carry out combustion and output combustion heat and high-temperature flue gas; the phase change heat storage subsystem (C) can absorb and store the gasification waste heat, the combustion heat and the heat in the high-temperature flue gas; the heating subsystem (D) can supply the heat stored in the phase change subsystem to a user end for use; and the heating control subsystem (E) can control the heating subsystem to work.

2. The regenerative biomass gasification heating system according to claim 1, wherein the phase change heat storage subsystem (C) includes a first phase change heat storage subsystem (C1), a second phase change heat storage subsystem (C2), and a third phase change heat storage subsystem (C3), wherein:

the first phase change thermal storage subsystem (C1) can absorb and store the waste heat output by the biomass gasification subsystem (A); the second phase change heat storage subsystem (C2) can absorb the combustion heat output by the biomass gas combustion subsystem (B); the third phase-to-phase heat conversion subsystem (C3) can absorb the heat in the high-temperature flue gas output by the biomass gasification subsystem (B).

3. The regenerative biomass gasification heating system according to claim 2, wherein the biomass gasification subsystem (a) includes a blower (a 1) and a gasification furnace (a 2), wherein: the gasification furnace (A2) is provided with a gasification chamber (A2-1), a water jacket chamber (A2-2), an air inlet (A2-3), an air outlet (A2-4), a water inlet (A2-5) and a water outlet (A2-6), wherein the water jacket chamber (A2-2) is sleeved on the outer layer of the gasification chamber (A2-1) and used for absorbing residual heat generated in the gasification process in the gasification chamber (A2-1); the air inlet (A2-3) and the air outlet (A2-4) are respectively communicated with the gasification chamber (A2-1), wherein the blower (A1) is connected with the air inlet (A2-3), and the air outlet (A2-4) is used for outputting the biomass gas; the water inlet (A2-5) and the water outlet (A2-6) are respectively communicated with the water jacket chamber (A2-2), wherein the water inlet (A2-5) is used for inputting low-temperature water, and the water outlet (A2-6) is used for outputting high-temperature water;

when the biomass gasification subsystem (A) works, the blower (A1) supplies air to the gasification furnace (A2), biomass is gasified in the gasification furnace (A2) to generate biomass gas and gasification waste heat, the biomass gas is output through the air outlet (A2-4), and the gasification waste heat is absorbed by water in the water jacket cavity (A2-2).

4. A heat accumulating type biomass gasification heating system according to claim 3, wherein the biomass gas combustion subsystem (B) comprises a drying tank (B1), a desulfurizing tank (B2) and a burner (B3) which are connected in sequence, and the drying tank (B1) is connected with the air outlet (a 2-4);

when the biomass gas combustion subsystem (B) works, the biomass gas enters a drying tank (B1) through an air outlet (A2-4) to be dried, then enters a desulfurizing tank (B2) to be desulfurized, and then enters a combustor (B3) to be combusted to output the combustion heat and the high-temperature flue gas.

5. A heat accumulating type biomass gasification heating system according to claim 4, wherein the first phase change heat accumulation subsystem (C1) comprises a first phase change heat accumulation tank (C1-1), a first heat exchanger (C1-2) and a first water pump, the first heat exchanger (C1-2) is arranged inside the first phase change heat accumulation tank (C1-1), a liquid inlet of the first heat exchanger (C1-2) is connected with a water outlet (A2-6), a liquid outlet of the first heat exchanger (C1-2) is connected with a water inlet (A2-5), the first heat exchanger (C1-2) and the water jacket chamber (A2-2) form a first water loop, and the first water pump is installed on the first water loop; when the first phase change thermal storage subsystem (C1) works, the first heat exchanger (C1-2) transfers the gasification waste heat stored in the water jacket cavity (A2-2) to a first phase change thermal storage tank (C1-1) for storage;

the second phase change heat storage subsystem (C2) comprises a second phase change heat storage tank (C2-1), a second heat exchanger (C2-2), a third heat exchanger (C2-3) and a second water pump, wherein the second heat exchanger (C2-2) is matched with the combustor (B3) for use and is used for absorbing combustion heat output when the combustor (B3) combusts the biomass gas; the third heat exchanger (C2-3) is arranged in the second phase change heat storage tank (C2-1), a liquid inlet of the third heat exchanger (C2-3) is connected with a liquid outlet of the second heat exchanger (C2-2), a liquid outlet of the third heat exchanger (C2-3) is connected with a liquid inlet of the second heat exchanger (C2-2), a second water loop is formed between the second heat exchanger (C2-2) and the third heat exchanger (C2-3), and the second water pump is arranged on the second water loop; when the second phase change heat storage subsystem (C1) works, a heat conduction loop is formed between the second heat exchanger (C2-2) and the third heat exchanger (C2-3), and combustion heat output when the biomass gas is combusted by the combustor (B3) is transferred to the second phase change heat storage tank (C2-1) for storage;

the third phase-to-phase heat storage subsystem (C3) comprises a third phase-to-phase heat storage tank (C3-1), an exhaust fan (C3-2), a fourth heat exchanger (C3-3) and a smoke exhaust channel (C3-4), wherein the exhaust fan (C3-2) is matched with a burner (B3) for use, and the high-temperature smoke generated when the burner (B3) burns the biomass gas is extracted; the fourth heat exchanger (C3-3) is arranged inside the third phase-to-heat storage tank (C3-1), the air inlet of the third phase-to-heat storage tank (C3-1) is connected with the air outlet of the exhaust fan (C3-2), and the air outlet of the third phase-to-heat storage tank (C3-1) is connected with the exhaust flue (C3-4); when the third phase-to-phase heat storage subsystem (C3) works, the fourth heat exchanger (C3-3) transfers the heat in the high-temperature flue gas to the third phase-to-phase heat storage tank (C3-1) for storage.

6. The heat accumulating type biomass gasification heating system according to claim 5, wherein the heating subsystem (D) comprises a fifth heat exchanger (D1), a sixth heat exchanger (D2), a seventh heat exchanger (D3), an eighth heat exchanger (D4), a third water pump (D5), a fourth water pump (D6) and a fifth water pump (D7), wherein the fifth heat exchanger (D1) is arranged in the first phase change heat storage tank (C1-1), the sixth heat exchanger (D2) is arranged in the second phase change heat storage tank (C2-1), the seventh heat exchanger (D3) is arranged in the third phase change heat storage tank (C3-1), the eighth heat exchanger (D4) is arranged in the user side chamber, liquid inlets of the fifth heat exchanger (D1), the sixth heat exchanger (D2) and the seventh heat exchanger (D3) are respectively connected with a liquid outlet of the eighth heat exchanger (D4), and the fifth heat exchanger (D1), Liquid outlets of the sixth heat exchanger (D2) and the seventh heat exchanger (D3) are respectively connected with a liquid inlet of the eighth heat exchanger (D4) through a third water pump (D5), a fourth water pump (D6) and a fifth water pump (D7);

when the heating subsystem (D) works, heat stored in the first phase change heat storage tank (C1-1), the second phase change heat storage tank (C2-1) and the third phase change heat storage tank (C3-1) is transferred to the user side indoor.

7. A regenerative biomass gasification heating system according to claim 6, wherein the heating control subsystem (E) comprises a controller (E1), a first temperature sensor (E2), a second temperature sensor (E3), a third temperature sensor (E4), and a fourth temperature sensor (E5), wherein the first temperature sensor (E2) is disposed in the first phase change heat storage tank (C1-1), the second temperature sensor (E3) is disposed in the second phase change heat storage tank (C2-1), the third temperature sensor (E4) is disposed in the third phase change heat storage tank (C3-1), and the fourth temperature sensor (E5) is disposed in the user terminal room; the first temperature sensor (E2), the second temperature sensor (E3), the third temperature sensor (E4) and the fourth temperature sensor (E5) are respectively connected with the controller (E1) and output temperature signals to the controller (E1); the controller (E1) is respectively connected with the third water pump (D5), the fourth water pump (D6) and the fifth water pump (D7) and respectively outputs control signals to the third water pump (D5), the fourth water pump (D6) and the fifth water pump (D7);

when the heating control subsystem (E) works, the controller outputs the control signals to the third water pump (D5), the fourth water pump (D6) and the fifth water pump (D7) according to the temperature signals, and the heat stored in the first phase-change heat storage tank (C1-1), the second phase-change heat storage tank (C2-1) and the third phase-change heat storage tank (C3-1) is transferred to the user side indoor.

8. The regenerative biomass gasification heating system according to claim 7, wherein the first heat exchanger (C1-2), the second heat exchanger (C2-2), the third heat exchanger (C2-3), the fifth heat exchanger (D1), the sixth heat exchanger (D2), the seventh heat exchanger (D3) and the eighth heat exchanger (D4) are all liquid medium heat exchangers, and the fourth heat exchanger (C3-3) is a gas medium heat exchanger.

9. The heat accumulating type biomass gasification heating system according to claim 8, wherein the first heat exchanger (C1-2), the second heat exchanger (C2-2), the third heat exchanger (C2-3), the fourth heat exchanger (C3-3), the fifth heat exchanger (D1), the sixth heat exchanger (D2), the seventh heat exchanger (D3) and the eighth heat exchanger (D4) are plate heat exchangers or tube heat exchangers.

10. The regenerative biomass gasification heating system according to claim 7, wherein the controller (E1) is a PLC control circuit.

Background

The resource characteristics of China mainly using coal and the living habits of rural residents in dispersed living have long been the main purposes of heating rural areas in China in winter by directly burning scattered coal and firewood. The rural areas in China have the problems of large total building energy consumption, low energy utilization efficiency and the like, and the pollutant emission is seriously overproof. The method has the advantages that resources in rural areas in China are not fully utilized, waste biomass resources including straws in China are rich, but are affected by storage and transportation and other factors, the actual utilization rate is seriously insufficient, the waste biomass cannot be fully utilized, energy waste is caused, and the environment is also affected. In recent years, a series of measures of changing coal into gas and changing coal into electricity are provided for solving the energy consumption problem in rural areas, so that farmers have a large heating burden, and the villagers do not dare to use gas-electricity heating equipment although the villagers have the gas-electricity heating equipment. Therefore, the method is suitable for the local conditions, the waste biomass is utilized in a cleaning manner, the problem of energy consumption in rural heating is solved, and the problem of waste biomass straw consumption can be solved.

The household biomass gasification technology is a biomass utilization technology which uses a small gasification furnace by taking rural families as a unit and uses generated fuel gas for household heating. Compared with the traditional direct biomass combustion of the soil stove, the technology does not produce particles harmful to the environment, and is cleaner and more sanitary. The biomass gasification furnace can effectively solve the problems of cooking and heating in the prior rural areas through the popularization of the household biomass gasification furnace, and can effectively complete the consumption of the waste biomass to prevent the waste biomass from polluting the environment, so the biomass gasification furnace has higher economic benefit and environmental benefit. However, biomass is a fuel with low energy density, the real-time heat release amount is large in the working process, the duration is short, the continuous heat release can be maintained only by continuously adding the fuel, a user needs to feed materials into the gasification furnace for many times in one day, and the users need to get up to feed materials particularly at night rest, so that trouble is caused to the practical use of the users.

In summary, the applicant believes that the technical problems of the biomass gasification heating system in the prior art are as follows: the heat supply continuity is poor, and the user is required to continuously operate and maintain for a long time.

Disclosure of Invention

The invention aims to provide a heat accumulating type biomass gasification heating system, which aims to solve the technical problem that a gasification heating system in the prior art is poor in heat supply continuity and requires long-time continuous operation and maintenance of a user. The technical effects (good heating continuity, capability of discontinuously performing biomass gasification combustion, intelligent temperature control, gasification waste heat recovery and the like) generated by the preferred technical scheme in the technical schemes provided by the invention are described in detail below.

In order to achieve the purpose, the invention provides the following technical scheme: a heat accumulating type biomass gasification heating system comprises a biomass gasification subsystem (A), a biomass gas combustion subsystem (B), a phase change heat accumulation subsystem (C), a heating subsystem (D) and a heating control subsystem (E), wherein the biomass gasification subsystem (A) can gasify biomass raw materials, output biomass gas, collect gasification waste heat generated in the biomass gasification process and output the gasification waste heat; the biomass combustion subsystem (B) can utilize biomass gas to carry out combustion and output combustion heat and high-temperature flue gas; the phase change heat storage subsystem (C) can absorb and store gasification waste heat, combustion heat and heat in high-temperature flue gas; the heating subsystem (D) can supply the heat stored in the phase change subsystem to a user end for use; and the heating control subsystem (E) can control the heating subsystem to work.

Optionally, the phase change thermal storage subsystem (C) comprises a first phase change thermal storage subsystem (C1), a second phase change thermal storage subsystem (C2) and a third phase change thermal storage subsystem (C3), wherein: the first phase change thermal storage subsystem (C1) can absorb and store the waste heat output by the biomass gasification subsystem (A); the second phase change heat storage subsystem (C2) can absorb the combustion heat output by the biomass gas combustion subsystem (B); the third phase-to-phase heat conversion subsystem (C3) can absorb the heat in the high-temperature flue gas output by the biomass gasification subsystem (B).

Optionally, the biomass gasification subsystem (a) comprises a blower (a 1) and a gasifier (a 2), wherein: the gasification furnace (A2) is provided with a gasification chamber (A2-1), a water jacket chamber (A2-2), an air inlet (A2-3), an air outlet (A2-4), a water inlet (A2-5) and a water outlet (A2-6), wherein the water jacket chamber (A2-2) is sleeved on the outer layer of the gasification chamber (A2-1) and used for absorbing residual heat generated in the gasification process in the gasification chamber (A2-1); the air inlet (A2-3) and the air outlet (A2-4) are respectively communicated with the gasification chamber (A2-1), wherein the blower (A1) is connected with the air inlet (A2-3), and the air outlet (A2-4) is used for outputting biomass gas; the water inlet (A2-5) and the water outlet (A2-6) are respectively communicated with the water jacket chamber (A2-2), wherein the water inlet (A2-5) is used for inputting low-temperature water, and the water outlet (A2-6) is used for outputting high-temperature water; when the biomass gasification subsystem (A) works, the blower (A1) supplies air to the gasification furnace (A2), biomass is gasified in the gasification furnace (A2) to generate biomass gas and gasification waste heat, the biomass gas is output through the air outlet (A2-4), and the gasification waste heat is absorbed by water in the water jacket cavity (A2-2).

Optionally, the biomass gas combustion subsystem (B) comprises a drying tank (B1), a devulcanizer (B2) and a burner (B3) which are connected in sequence, wherein the drying tank (B1) is connected with the air outlet (a 2-4); when the biomass gas combustion subsystem (B) works, the biomass gas enters a drying tank (B1) for drying through an air outlet (A2-4), then enters a desulfurizing tank (B2) for desulfurizing, and then enters a combustor (B3) for combustion.

Optionally, the first phase change heat storage subsystem (C1) includes a first phase change heat storage tank (C1-1), a first heat exchanger (C1-2) and a first water pump, the first heat exchanger (C1-2) is disposed inside the first phase change heat storage tank (C1-1), a liquid inlet of the first heat exchanger (C1-2) is connected with a water outlet (a 2-6), a liquid outlet of the first heat exchanger (C1-2) is connected with a water inlet (a 2-5), the first heat exchanger (C1-2) and the water jacket chamber (a 2-2) form a first water loop, and the first water pump is installed on the first water loop; when the first phase change thermal storage subsystem (C1) works, the first heat exchanger (C1-2) transfers gasification waste heat stored in the water jacket cavity (A2-2) to the first phase change thermal storage tank (C1-1) for storage; the second phase change heat storage subsystem (C2) comprises a second phase change heat storage tank (C2-1), a second heat exchanger (C2-2), a third heat exchanger (C2-3) and a second water pump, wherein the second heat exchanger (C2-2) is matched with the combustor (B3) for use and is used for absorbing combustion heat output when the combustor (B3) combusts the biomass gas; the third heat exchanger (C2-3) is arranged in the second phase change heat storage tank (C2-1), a liquid inlet of the third heat exchanger (C2-3) is connected with a liquid outlet of the second heat exchanger (C2-2), a liquid outlet of the third heat exchanger (C2-3) is connected with a liquid inlet of the second heat exchanger (C2-2), a second water loop is formed between the second heat exchanger (C2-2) and the third heat exchanger (C2-3), and a second water pump is arranged on the second water loop; when the second phase change heat storage subsystem (C1) works, a heat conduction loop is formed between the second heat exchanger (C2-2) and the third heat exchanger (C2-3), and combustion heat output when the combustor (B3) combusts biomass gas is transferred to the second phase change heat storage tank (C2-1) for storage; the third phase-to-phase heat storage subsystem (C3) comprises a third phase-to-phase heat storage box (C3-1), an exhaust fan (C3-2), a fourth heat exchanger (C3-3) and a smoke exhaust channel (C3-4), wherein the exhaust fan (C3-2) is matched with the combustor (B3) for use, and high-temperature smoke generated when the combustor (B3) burns biomass gas is extracted; the fourth heat exchanger (C3-3) is arranged inside the third phase-to-heat storage tank (C3-1), the air inlet of the third phase-to-heat storage tank (C3-1) is connected with the air outlet of the exhaust fan (C3-2), and the air outlet of the third phase-to-heat storage tank (C3-1) is connected with the exhaust flue (C3-4); when the third phase-to-phase heat storage subsystem (C3) works, the fourth heat exchanger (C3-3) transfers heat in the high-temperature flue gas to the third phase-to-phase heat storage tank (C3-1) for storage.

Optionally, the heating subsystem (D) includes a fifth heat exchanger (D1), a sixth heat exchanger (D2), a seventh heat exchanger (D3), an eighth heat exchanger (D4), a third water pump (D5), a fourth water pump (D6) and a fifth water pump (D7), wherein the fifth heat exchanger (D1) is disposed in the first phase-change heat storage tank (C1-1), the sixth heat exchanger (D2) is disposed in the second phase-change heat storage tank (C2-1), the seventh heat exchanger (D3) is disposed in the third phase-change heat storage tank (C3-1), the eighth heat exchanger (D4) is disposed in the user-end chamber, liquid inlets of the fifth heat exchanger (D1), the sixth heat exchanger (D2) and the seventh heat exchanger (D3) are respectively connected to a liquid outlet of the eighth heat exchanger (D4), and liquid outlets of the fifth heat exchanger (D1), the sixth heat exchanger (D2) and the seventh heat exchanger (D3) are respectively connected to a fourth water pump (D599), The fifth water pump (D7) is connected with the liquid inlet of the seventh heat exchanger (D4); when the heating subsystem (D) works, heat stored in the first phase change heat storage tank (C1-1), the second phase change heat storage tank (C2-1) and the third phase change heat storage tank (C3-1) is transferred to a user side room respectively or simultaneously.

Optionally, the heating control subsystem (E) includes a controller (E1), a first temperature sensor (E2), a second temperature sensor (E3), a third temperature sensor (E4), and a fourth temperature sensor (E5), where the first temperature sensor (E2) is disposed in the first phase change heat storage box (C1-1), the second temperature sensor (E3) is disposed in the second phase change heat storage box (C2-1), the third temperature sensor (E4) is disposed in the third phase change heat storage box (C3-1), and the fourth temperature sensor (E5) is disposed in the user terminal room; the first temperature sensor (E2), the second temperature sensor (E3), the third temperature sensor (E4) and the fourth temperature sensor (E5) are respectively connected with the controller (E1) and output temperature signals to the controller (E1); the controller (E1) is respectively connected with the third water pump (D5), the fourth water pump (D6) and the fifth water pump (D7) and respectively outputs control signals to the third water pump (D5), the fourth water pump (D6) and the fifth water pump (D7); when the heating control subsystem (E) works, the controller outputs control signals to the third water pump (D5), the fourth water pump (D6) and the fifth water pump (D7) according to the temperature signals, and heat stored in the first phase-change heat storage tank (C1-1), the second phase-change heat storage tank (C2-1) and the third phase-change heat storage tank (C3-1) is transferred to the user side indoor.

Optionally, the first heat exchanger (C1-2), the second heat exchanger (C2-2), the third heat exchanger (C2-3), the fifth heat exchanger (D1), the sixth heat exchanger (D2), the seventh heat exchanger (D3), and the eighth heat exchanger (D4) are all liquid medium heat exchangers, and the fourth heat exchanger (C3-3) is a gas medium heat exchanger.

Optionally, the first heat exchanger (C1-2), the second heat exchanger (C2-2), the third heat exchanger (C2-3), the fourth heat exchanger (C3-3), the fifth heat exchanger (D1), the sixth heat exchanger (D2), the seventh heat exchanger (D3), and the eighth heat exchanger (D4) may all be plate heat exchangers or tubular heat exchangers.

Optionally, the controller (E1) is a PLC control circuit.

The heat accumulating type biomass gasification heating system provided by the embodiment of the invention has the beneficial effects that: a large amount of heat storage through phase change heat accumulation case with the real-time release in the biological gasification, later slowly release the heating, can be lastingly for using end indoor heating, and need not last operation maintenance retort and carry out the carbonization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a process diagram of an apparatus of a regenerative biomass gasification heating system according to an embodiment of the invention in fig. 1;

fig. 2 is a process diagram of a regenerative biomass gasification heating system according to an embodiment of the invention;

FIG. 3 is a process block diagram of biomass gasification subsystem A of an embodiment of the present invention;

FIG. 4 is a process block diagram of a biogas combustion subsystem B according to an embodiment of the invention;

FIG. 5 is a block diagram illustrating a first phase change thermal storage subsystem according to an embodiment of the present invention;

FIG. 6 is a block diagram illustrating a second phase change thermal storage subsystem C2 according to an embodiment of the present invention;

FIG. 7 is a block diagram of a third phase-to-phase thermal storage subsystem C3 according to an embodiment of the present invention;

FIG. 8 is a process block diagram of a heating subsystem according to an embodiment of the present invention;

fig. 9 is a process block diagram of a heating control subsystem of the first phase-change thermal storage subsystem according to the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Fig. 2 shows a process diagram of a heat accumulating type biomass gasification heating system according to an embodiment of the present invention, and an embodiment of the present invention provides a waste biomass fermentation gasification coupling co-production system, which includes a biomass gasification subsystem a, a biomass gas combustion subsystem B, a phase change heat accumulation subsystem C, a heating subsystem D, and a heating control subsystem E, wherein the biomass gasification subsystem a is capable of gasifying a biomass raw material, outputting a biomass gas, collecting gasification waste heat generated in a biomass gasification process, and outputting the biomass gas; the biomass combustion subsystem B can utilize biomass gas to carry out combustion and output combustion heat and high-temperature flue gas; the phase change heat storage subsystem C can absorb and store the gasification waste heat, the combustion heat and the heat in the high-temperature flue gas; the heating subsystem D can supply the heat stored in the phase change subsystem to a user side for use; and the heating control subsystem E can control the heating subsystem to work.

The heat accumulating type biomass gasification heating system has the advantages that the phase change heat accumulation subsystem C can absorb heat of the heating system and continuously and slowly output the heat when heat supply is needed, the biomass gasification subsystem is prevented from being continuously supplied for a long time and being in a working state, and use burden of a user is relieved.

As a more preferable technical solution, as shown in fig. 2, the phase change thermal storage subsystem C of the embodiment of the present invention includes a first phase change thermal storage subsystem C1, a second phase change thermal storage subsystem C2, and a third phase change thermal storage subsystem C3, wherein the first phase change thermal storage subsystem C1 is capable of absorbing and storing the waste heat output by the biomass gasification subsystem a; the second phase change heat storage subsystem C2 can absorb the combustion heat output by the biomass gas combustion subsystem B; the third phase-to-phase heat conversion and storage subsystem C3 can absorb heat in the high-temperature flue gas output by the biomass gasification subsystem B.

As a more preferable technical solution, as shown in fig. 1-3, wherein fig. 1 is a process route diagram of an apparatus of a heat accumulating type biomass gasification heating system according to an embodiment of the present invention, fig. 3 is a process block diagram of a biomass gasification subsystem a according to an embodiment of the present invention, in this embodiment, the biomass gasification subsystem a includes a blower a1 and a gasifier a2, wherein the gasifier a2 has a gasification chamber a2-1, a water jacket chamber a2-2, an air inlet a2-3, an air outlet a2-4, a water inlet a2-5 and a water outlet a2-6, wherein the water jacket chamber a2-2 is sleeved on an outer layer of the gasification chamber a2-1 to absorb waste heat generated in a gasification process in the gasification chamber a 2-1; the air inlet A2-3 and the air outlet A2-4 are respectively communicated with the gasification chamber A2-1, wherein the blower A1 is connected with the air inlet A2-3, and the air outlet A2-4 is used for outputting the biomass gas; the water inlet A2-5 and the water outlet A2-6 are respectively communicated with the water jacket chamber A2-2, wherein the water inlet A2-5 is used for inputting low-temperature water, and the water outlet A2-6 is used for outputting high-temperature water. When the biomass gasification subsystem A works, the blower A1 supplies air to the gasification furnace A2, biomass is gasified in the gasification furnace A2 to generate biomass gas and gasification waste heat, the biomass gas is output through the air outlet A2-4, and the gasification waste heat is absorbed by water in the water jacket cavity A2-2.

As a more preferable technical solution, as shown in fig. 1-4, fig. 4 is a process block diagram of a biomass gas combustion subsystem B according to an embodiment of the present invention, the biomass gas combustion subsystem B according to the embodiment of the present invention includes a drying tank B1, a desulfurizing tank B2, and a burner B3, which are connected in sequence, wherein the drying tank B1 is connected with an air outlet a 2-4; when the biomass gas combustion subsystem B works, the biomass gas enters a drying tank B1 through an air outlet A2-4 to be dried, then enters a desulfurizing tank B2 to be desulfurized, and then enters a combustor B3 to be combusted to output the combustion heat and the high-temperature flue gas.

As a preferred technical solution, as shown in fig. 1-7, fig. 5 is a process block diagram of a first phase change thermal storage subsystem according to an embodiment of the present invention, fig. 6 is a process block diagram of a second phase change heat storage sub-system C2 according to an embodiment of the present invention, and fig. 7 is a process block diagram of a third phase change heat storage sub-system C3 according to an embodiment of the present invention, where the first phase change heat storage sub-system C1 according to the present embodiment includes a first phase change heat storage tank C1-1, a first heat exchanger C1-2, and a first water pump, the first heat exchanger C1-2 is disposed inside the first phase change heat storage tank C1-1, a liquid inlet of the first heat exchanger C1-2 is connected to a water outlet a2-6, a liquid outlet of the first heat exchanger C1-2 is connected to a water inlet a2-5, the first heat exchanger C1-2 and the water jacket chamber a2-2 form a first water loop, and the first water pump is installed on the first water loop; when the first phase change thermal storage subsystem C1 works, the first heat exchanger C1-2 transfers the gasification waste heat stored in the water jacket cavity (A2-2) to the first phase change thermal storage tank C1-1 for storage. The second phase-change heat storage subsystem C2 comprises a second phase-change heat storage tank C2-1, a second heat exchanger C2-2, a third heat exchanger C2-3 and a second water pump (not shown in the figure), wherein the second heat exchanger C2-2 is matched with the combustor B3 for use, so that combustion heat output when the combustor B3 combusts the biomass gas is absorbed; the third heat exchanger C2-3 is arranged inside the second phase change heat storage tank C2-1, a liquid inlet of the third heat exchanger C2-3 is connected with a liquid outlet of the second heat exchanger C2-2), a liquid outlet of the third heat exchanger C2-3 is connected with a liquid inlet of the second heat exchanger C2-2, a second water loop is formed between the second heat exchanger C2-2 and the third heat exchanger C2-3, and the second water pump is arranged on the second water loop; when the second phase change heat storage subsystem C1 works, a heat conduction loop is formed between the second heat exchanger C2-2 and the third heat exchanger C2-3, and combustion heat output when the biomass gas is combusted by the combustor B3 is transferred to the second phase change heat storage tank C2-1 to be stored. The third phase-to-phase heat storage subsystem C3 comprises a third phase-to-phase heat storage tank C3-1, an exhaust fan C3-2, a fourth heat exchanger C3-3 and a smoke exhaust flue C3-4, wherein the exhaust fan C3-2 is matched with a combustor B3 for use, and the high-temperature smoke generated when the combustor B3 combusts the biomass gas is extracted; the fourth heat exchanger C3-3 is arranged inside the third phase-to-heat storage tank C3-1, an air inlet of the third phase-to-heat storage tank C3-1 is connected with an air outlet of the exhaust fan C3-2, and an air outlet of the third phase-to-heat storage tank C3-1 is connected with the exhaust flue C3-4; when the third phase-to-heat storage subsystem C3 works, the fourth heat exchanger C3-3 transfers heat in the high-temperature flue gas to the third phase-to-heat storage tank C3-1 for storage.

As a preferred embodiment, as shown in fig. 1 to 8, where fig. 8 is a process diagram of a heating subsystem according to an embodiment of the present invention, the heating subsystem D of this embodiment includes a fifth heat exchanger D1, a sixth heat exchanger D2, a seventh heat exchanger D3, an eighth heat exchanger D4, a third water pump D5, a fourth water pump D6, and a fifth water pump D7, where a fifth heat exchanger D1 is disposed in a first phase change heat storage tank C1-1, a sixth heat exchanger D2 is disposed in a second phase change heat storage tank C2-1, a seventh heat exchanger D3 is disposed in a third phase change heat storage tank C3-1, an eighth heat exchanger D4 is disposed in the user-side chamber, liquid inlets of the fifth heat exchanger D1, the sixth heat exchanger D2, and the seventh heat exchanger D3 are respectively connected to a liquid outlet of the eighth heat exchanger D4, liquid outlets of the fifth heat exchanger D1, the sixth heat exchanger D2, and the seventh heat exchanger D3 are respectively connected to a fourth water pump D6D 68628, And the fifth water pump D7 is connected with the liquid inlet of the eighth heat exchanger D4. When the heating subsystem D works, heat stored in the first phase change heat storage tank C1-1, the second phase change heat storage tank C2-1 and the third phase change heat storage tank C3-1 is transferred to the user side indoor space respectively or simultaneously.

As a preferred technical solution, as shown in fig. 1 to 9, fig. 9 is a process block diagram of a heating control subsystem of a first phase-change thermal storage subsystem according to an embodiment of the present invention, where the heating control subsystem E of this embodiment includes a controller E1, a first temperature sensor E2, a second temperature sensor E3, a third temperature sensor E4, and a fourth temperature sensor E5, where the first temperature sensor E2 is disposed in a first phase-change thermal storage tank C1-1, the second temperature sensor E3 is disposed in a second phase-change thermal storage tank C2-1, the third temperature sensor E4 is disposed in a third phase-change thermal storage tank C3-1, and the fourth temperature sensor E5 is disposed in a user terminal room; the first temperature sensor E2, the second temperature sensor E3, the third temperature sensor (E4) and the fourth temperature sensor E5 are respectively connected with the controller E1 and output temperature signals to the controller E1; the controller E1 is respectively connected with the third water pump D5, the fourth water pump D6 and the fifth water pump D7, and respectively outputs control signals to the third water pump D5, the fourth water pump D6 and the fifth water pump D7; when the heating control subsystem E works, the controller outputs the control signals to the third water pump D5, the fourth water pump D6 and the fifth water pump D7 according to the temperature signals, and the heat stored in the first phase change heat storage tank C1-1, the second phase change heat storage tank C2-1 and the third phase change heat storage tank C3-1 is transferred to the user side indoor.

Specifically, as shown in fig. 1 to 9, the first heat exchanger C1-2, the second heat exchanger C2-2, the third heat exchanger C2-3, the fifth heat exchanger D1, the sixth heat exchanger D2, the seventh heat exchanger D3 and the eighth heat exchanger D4 are all liquid medium heat exchangers, and the fourth heat exchanger C3-3 is a gas medium heat exchanger. The first heat exchanger C1-2, the second heat exchanger C2-2, the third heat exchanger C2-3, the fourth heat exchanger C3-3, the fifth heat exchanger D1, the sixth heat exchanger D2, the seventh heat exchanger D3 and the eighth heat exchanger D4 can be plate heat exchangers or tubular heat exchangers. The controller E1 is a PLC control circuit.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.