1. A total heat exchanger with a bilateral membrane structure comprises a shell, wherein a fresh air cavity (5), a heat exchange cavity (7) and a return air cavity (6) are sequentially arranged in the shell from top to bottom; the method is characterized in that: and moisture permeable films (9) corresponding to the fresh air cavity (5) and the return air cavity (6) are arranged on the upper side and the lower side of the heat exchange cavity (7).

2. The double-sided membrane structure total heat exchanger according to claim 1, wherein: a plurality of partition plates (8) are arranged in the heat exchange cavity (7), and the partition plates (8) and the heat exchange cavity (7) are arranged integrally.

3. The double-sided membrane structure total heat exchanger according to claim 1, wherein: the heat exchanger is characterized in that an access panel (10) is arranged on the shell, the access panel (10) corresponds to the heat exchange cavity (7), and the access panel (10) and the shell are arranged in a split mode.

4. The double-sided membrane structure total heat exchanger according to claim 1, wherein: and a return air outlet (2) is arranged at one side of the return air cavity (6), and a return air inlet (4) is arranged at the other side of the return air cavity.

5. The double-sided membrane structure total heat exchanger according to claim 4, wherein: the bottom of the return air cavity (6) is provided with an inclined plane which is inclined towards the return air outlet (2).

6. The double-sided membrane structure total heat exchanger according to claim 5, wherein: the inclination angle of the inclined plane has the following value range: 3-7 per mill.

7. The double-sided membrane structure total heat exchanger according to claim 6, wherein: the inclination angle value of the inclined plane is as follows: 5 per mill.

8. The double-sided membrane structure total heat exchanger according to claim 5, wherein: the inclined surface is provided with a water outlet (11), and the water outlet (11) is arranged close to one side of the return air outlet (2).

9. The double-sided membrane structure total heat exchanger according to claim 1, wherein: fresh air cavity (5) one side is equipped with fresh air inlet (1), and the opposite side is equipped with fresh air outlet (3).

Background

The problem of air pollution has been increasingly noticed in recent years. Along with the improvement of living standard of people and the development of industrialization in China, people pay more attention to the quality problem of indoor air, especially after the new trend erupts, the problem that mixed flow phenomenon in the traditional fresh air system possibly carries some germs is gradually paid more attention to by people, the traditional fresh air system adopts a form of fresh air and return air or adopts a full fresh air system, but the cost of the full fresh air system is too high for families, and therefore the double-side membrane structure total heat exchanger without direct mixing of gas is invented to be used in a family type fresh air processing system.

The traditional fresh air and return air system mainly adopts a method that fresh air and return air are directly mixed and then input into a room, and the method mainly comprises the steps of mixing the fresh air and the return air according to a certain fresh air ratio, carrying out certain heat and humidity exchange on the fresh air and the return air, and then carrying out heat and humidity treatment on the mixed gas so as to input the mixed gas into the room and provide fresh air for the room. The mixing method can reduce the temperature and humidity required by fresh air treatment, thereby achieving the effect of saving energy, mainly utilizing the waste heat and the residual humidity generated indoors, but in the process, the dirty air and the peculiar smell in the indoor air can be mixed with the fresh air and continuously input into the room, so that the cleanliness of the indoor air is greatly reduced, and even the phenomenon of cross infection can be generated when the indoor air faces the germs.

Disclosure of Invention

The invention provides a total heat exchanger with a double-side membrane structure, aiming at overcoming the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a total heat exchanger with a double-side membrane structure comprises a shell, wherein a fresh air cavity, a heat exchange cavity and a return air cavity are sequentially arranged in the shell from top to bottom; moisture permeable films corresponding to the fresh air cavity and the return air cavity are arranged on the upper side and the lower side of the heat exchange cavity.

Furthermore, a plurality of partition plates are arranged in the heat exchange cavity, and the partition plates and the heat exchange cavity are arranged integrally.

Furthermore, the shell is provided with an access panel, the access panel corresponds to the heat exchange cavity, and the access panel and the shell are arranged in a split mode.

Furthermore, one side of the return air cavity is provided with a return air outlet, and the other side of the return air cavity is provided with a return air inlet.

Furthermore, the bottom of the return air cavity is provided with an inclined surface which is inclined towards the return air outlet.

Furthermore, the inclination angle of the inclined plane has a value range of: 3-7 per mill.

Preferably, the inclination angle of the inclined plane has a value as follows: 5 per mill.

Furthermore, a water outlet is arranged on the inclined surface and is close to one side of the return air outlet.

Furthermore, fresh air inlet is arranged on one side of the fresh air cavity, and fresh air outlet is arranged on the other side of the fresh air cavity.

Compared with the prior art, the invention has the following advantages: 1. the fresh air cavity and the return air cavity are additionally arranged in the shell, and air is introduced into the cavities by the air pipes for heat exchange, so that the heat exchange area of the fresh air and the return air is increased, and the heat exchange is promoted;

2. the heat exchanger has the advantages that the partition plates are inserted into the heat exchange cavity, the heat exchange principle is enhanced by inserting the partition plates through natural convection, the efficiency of the heat exchanger is improved, particularly when the number of the inserted partition plates is large, the heat exchange efficiency can be greatly improved, the utilization of indoor waste heat in humidity is enhanced, the energy consumption is reduced, and the requirements of environmental protection and energy conservation are met;

3. the moisture permeable films are arranged on the upper side and the lower side of the heat exchange cavity, and the characteristic that the moisture permeable films only allow heat and moisture to pass is utilized, so that the direct mixing of gas is eliminated, the harm caused by the direct mixing of the gas is avoided, the cleanliness of the air is greatly improved, the satisfaction degree of a user on conveying fresh air indoors is increased, and the requirement of the user on high-quality indoor air is met;

4. the maintenance plate is arranged, so that the equipment is convenient to maintain, maintain and clean, relevant personnel can conveniently check the inside of the equipment, and the maintenance and the cleaning of the equipment are facilitated, so that the service life of the equipment is prolonged to a certain extent;

5. through the setting at the 5 permillage inclination on inclined plane, and be equipped with the outlet for discharge the comdenstion water that produces when the cold and hot mixing in the heat transfer cavity, eliminate the influence of comdenstion water to equipment, prevent that the comdenstion water from dripping into indoorly, the experience nature when improving the user and using.

Drawings

FIG. 1 is a schematic view of a double-sided membrane-structured total heat exchanger of the present invention;

FIG. 2 is a cross-sectional view of a double-sided membrane configuration total heat exchanger of the present invention;

FIG. 3 is a rear view of the double-sided membrane configuration total heat exchanger of the present invention;

icon: 1-fresh air inlet; 2-return air outlet; 3-a fresh air outlet; 4-return air inlet; 5-a fresh air cavity; 6-air return cavity; 7-heat exchange cavity; 8-a separator; 9-moisture permeable film; 10-maintenance board; 11-drainage port.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

in the description of the present invention, terms describing positions such as "upper side", "lower side", "rear side", "lower wall surface", etc. are used to describe positions shown in the drawings, and are not intended to be specific fixing positions, and the positions are relative, and should not be construed as limiting the present invention.

In the description of the present invention, the terms "fresh air cavity", "return air cavity", "fresh air inlet", "fresh air outlet", "return air outlet", and the like, with respect to the type of gas, are descriptions of the use of the device in a fresh air system, rather than descriptions of specific attributes, and the names are different in different systems, and should not be construed as limiting the present invention.

As shown in fig. 1-3, a total heat exchanger with a double-sided membrane structure comprises a shell, wherein a fresh air cavity 5, a heat exchange cavity 7 and a return air cavity 6 are sequentially arranged in the shell from top to bottom; a fresh air inlet 1 is formed in one side of the fresh air cavity 5, and a fresh air outlet 3 is formed in the other side of the fresh air cavity; the relationship between the height H of the heat exchange cavity 7 and the length W of the heat exchange cavity 7 is as follows: W/H is 5; through increasing new trend cavity 5, return air cavity 6 in the shell, utilize the tuber pipe to carry out the heat transfer with gaseous leading-in cavity in, make the heat transfer regional increase of new trend and return air, promote going on of heat transfer.

As shown in fig. 1, the upper and lower sides of the heat exchange cavity 7 are provided with moisture permeable films 9 corresponding to the fresh air cavity 5 and the return air cavity 6, the films are selective moisture permeable films 9, which are hydrophilic selectively permeable films, allowing heat and moisture exchange between the two sides of the films, when a fan is used to suck fresh air and discharge return air, the pressure in the fresh air cavity 5 and the return air cavity 6 should be noticed, if the pressure difference is too large, the film structure is damaged, the pressure in the two cavities should be ensured to be the same, that is, the inlet speed of the fresh air and the inlet speed of the return air are the same.

As shown in fig. 1-2, a plurality of partition plates 8 are arranged in the heat exchange cavity 7, the number of the partition plates 8 can be 1 or more than 1, when the number of the partition plates 8 reaches 27, the heat exchange effect can be improved by more than two times compared with the heat exchange effect of the heat exchange cavity 7 without the partition plates 8, the plurality of partition plates 8 are uniformly arranged in the heat exchange cavity 7 from left to right at intervals, the partition plates 8 and the heat exchange cavity 7 are integrally arranged, the heat exchange principle is enhanced by inserting the partition plates 8 through natural convection, the efficiency of the heat exchanger is improved, especially when the number of the inserted partition plates 8 is more, the heat exchange efficiency can be greatly improved, the utilization of indoor waste heat and humidity is enhanced, the energy consumption is reduced, and the requirements of green and energy conservation are met; the relationship between the gap d between the partition plate 8 and the upper and lower wall surfaces and the height H of the heat exchange cavity 7 is as follows: d is H/52; the relationship between the thickness L of the baffle plate 8 and the height H of the heat exchange cavity 7 is as follows: and L is H/52.

As shown in fig. 3, the shell is provided with an access panel 10, the access panel 10 corresponds to the heat exchange cavity 7, the access panel 10 and the shell are arranged in a split manner, the access panel 10 is fixed on the shell through a hexagon nut, and can be opened from the rear side of the heat exchanger during maintenance, so that the equipment can be inspected, cleaned and maintained, and the service life of the equipment can be prolonged through regular inspection and maintenance.

As shown in fig. 1, a return air outlet 2 is arranged on one side of the return air cavity 6, and a return air inlet 4 is arranged on the other side of the return air cavity. The return air is sucked into the indoor return air through a return air inlet 4 and is sent into a return air cavity 6.

As shown in fig. 1, the bottom of the return air cavity 6 is provided with an inclined plane, the inclined plane is inclined towards the return air outlet 2, and the inclination angle of the inclined plane ranges from: 3-7 per mill, preferably, the inclination angle value of the inclined plane is as follows: 5 per mill; be equipped with outlet 11 on the inclined plane, this outlet 11 is close to return air export 2 one side, when cold and hot air carries out the heat exchange, can produce certain comdenstion water and flow to return air cavity 6 along the wall face in, the comdenstion water flows to outlet 11 under the effect of gravity, discharges it to outdoor from outlet 11, prevents that the comdenstion water from dripping into indoor, improves the experience nature when the user uses.

As shown in figure 1, a fresh air inlet 1 is arranged on one side of the fresh air cavity 5, a fresh air outlet 3 is arranged on the other side of the fresh air cavity, specifically, the fresh air inlet 1 and the return air outlet 2 are located on the same vertical plane, and the fresh air outlet 3 and the return air inlet 4 are located on the same vertical plane.

The specific working principle of the invention is as follows: fresh air is low-temperature low-humidity air, return air is high-temperature high-humidity air, and fresh air is sucked from the outside through the fresh air inlet 1 and sent to the fresh air cavity 5; the return air is from indoor intake return air by return air import 4, send to in the return air cavity 6, because the difference of temperature humidity in new trend cavity 5 and return air cavity 6, the gas in new trend cavity 5 and the return air cavity 6, through moisture permeable membrane 9 on the wall, cold fluid downstream, the hot-fluid upward movement, form natural convection in heat transfer cavity 7 and realize the heat exchange, insert the principle of baffle 8 reinforcing heat transfer based on natural convection, insert baffle 8 at a medium distance in heat transfer cavity 7, make it form unidirectional convection heat transfer in heat transfer cavity 7, thereby reinforcing heat transfer effect.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.