1. The utility model provides a canned motor pump that radiating effect is good which characterized in that: comprises an outer shell (1), an inner shell (2) and a base (16); the inner shell (2) is arranged in the outer shell (1), a rotating shaft (3) is horizontally arranged in the inner shell (2), a rotor assembly (4) is fixedly sleeved in the middle of the surface of the rotating shaft (3), a stator assembly (5) is arranged at a position corresponding to the inner wall of the inner shell (2), and the stator assembly (5) is matched with the rotor assembly (4); bearings (6) are arranged on the surfaces of the rotating shafts (3) and positioned on two sides of the rotor assembly (4), the rotating shafts (3) are hermetically connected with the inner shell (2) through the bearings (6), and one ends of the rotating shafts (3) are fixedly connected with the impellers (15); the heat dissipation device is characterized in that connecting rings (7) are arranged at two ends of the surface of the inner shell (2), the inner shell (2) is connected with the inner wall of the outer shell (1) through the connecting rings (7), a heat dissipation cavity (8) is arranged between the inner shell (2) and the outer shell (1), and a heat dissipation assembly is arranged in the heat dissipation cavity (8).

2. The shielding pump with good heat dissipation effect as claimed in claim 1, wherein: the heat dissipation assembly comprises a cooling water pipe (9), a first circulating pipe (10) and a water storage tank (12); and a water storage tank (12) is fixedly arranged on the surface of the shell (1).

3. The shielding pump with good heat dissipation effect as claimed in claim 2, wherein: the cooling water pipe (9) is spirally wound on the surface of the inner shell (2), one end of the cooling water pipe (9) is communicated with the inside of the water storage tank (12), and the other end of the cooling water pipe is communicated with the first circulating pipe (10).

4. The shielding pump with good heat dissipation effect as defined in claim 3, wherein: the other end of the first circulating pipe (10) penetrates through the shell (1) and is communicated with one side of the heat exchanger (13), the other side of the heat exchanger (13) is communicated with a second circulating pipe (11), and the other end of the second circulating pipe (11) is communicated with the water storage tank (12).

5. The shielding pump with good heat dissipation effect as claimed in claim 1, wherein: the side surface of the connecting ring (7) is provided with a first threaded part, the inner wall of the outer shell (1) and the surface of the inner shell (2) are correspondingly provided with a second threaded part, and the connecting ring (7) is in threaded connection with the outer shell (1) and the inner shell (2) through the matching of the first threaded part and the second threaded part.

6. The shielding pump with good heat dissipation effect as claimed in claim 1, wherein: the surface of the connecting ring (7) is provided with a bulge (14) extending outwards.

7. The shielding pump with good heat dissipation effect as claimed in claim 1, wherein: the bottom end of the shell (1) is fixedly connected with the base (16) through a connecting plate (17).

8. The shielding pump with good heat dissipation effect as claimed in claim 1, wherein: the bottom end of the shell (1) is provided with a fixed support (18), the top ends of the two sides of the fixed support (18) are fixedly connected with the surface of the shell (1), the middle of the surface of the fixed support (18) is fixedly connected with a plurality of damping springs (19), and the other ends of the damping springs (19) are fixedly connected with the bottom surface of the shell (1).

9. The shield pump with good heat dissipation effect as claimed in claim 8, wherein: the screw rod (20) is vertically fixed at four corners of the bottom of the fixed support (18), the bottom end of the screw rod (20) is sleeved with fixed bottom feet (21), and the fixed bottom feet (21) are fixedly connected with the screw rod (20) in a threaded mode.

Background

The conventional centrifugal pump is driven by connecting an impeller shaft of the pump with an electric shaft through a coupling so that the impeller and the motor rotate together to work, while the canned pump is a sealless pump, and the pump and a driving motor are both sealed in a pressure vessel filled with a pumped medium, the pressure vessel is only provided with static seals, and a rotating magnetic field is provided by an electric wire set and drives a rotor. The structure eliminates a rotating shaft sealing device of the traditional centrifugal pump, so that the leakage can be completely avoided. However, the heat exchange efficiency between the cooling liquid in the common shield pump and the outer wall of the shell is low, so that the heat dissipation capability of the shield pump is poor, and if the shield pump cannot effectively dissipate heat and cool, the coil in the shield pump is easy to jump and stop or burn.

Disclosure of Invention

The invention aims to provide a shielding pump with good heat dissipation effect to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a shielding pump with good heat dissipation effect comprises an outer shell, an inner shell and a base; the inner shell is arranged in the outer shell, a rotating shaft is horizontally arranged in the inner shell, a rotor assembly is fixedly sleeved in the middle of the surface of the rotating shaft, a stator assembly is arranged at a position corresponding to the inner wall of the inner shell, and the stator assembly and the rotor assembly are matched with each other; bearings are arranged on the surfaces of the rotating shafts at two sides of the rotor assembly, the rotating shafts are hermetically connected with the inner shell through the bearings, and one ends of the rotating shafts are fixedly connected with the impellers; the heat dissipation device comprises an inner shell and an outer shell, wherein connecting rings are arranged at two ends of the surface of the inner shell, the inner shell is connected with the inner wall of the outer shell through the connecting rings, a heat dissipation cavity is arranged between the inner shell and the outer shell, and a heat dissipation assembly is arranged in the heat dissipation cavity.

Preferably, the heat dissipation assembly comprises a cooling water pipe, a first circulation pipe and a water storage tank; and a water storage tank is fixedly arranged on the surface of the shell.

Preferably, the cooling water pipe is spirally wound on the surface of the inner shell, one end of the cooling water pipe is communicated with the inside of the water storage tank, and the other end of the cooling water pipe is communicated with the first circulating pipe.

Preferably, the other end of the first circulating pipe penetrates through the outer shell and is communicated with one side of the heat exchanger, the other side of the heat exchanger is communicated with a second circulating pipe, and the other end of the second circulating pipe is communicated with the water storage tank.

Preferably, the side surface of the connecting ring is provided with a first threaded portion, the inner wall of the outer shell and the surface of the inner shell are correspondingly provided with a second threaded portion, and the connecting ring is in threaded connection with the outer shell and the inner shell through the matching of the first threaded portion and the second threaded portion.

Preferably, the connecting ring surface is provided with a protrusion extending outwards.

Preferably, the bottom end of the shell is fixedly connected with the base through a connecting plate.

Preferably, the bottom end of the shell is provided with a fixed support, the top ends of the two sides of the fixed support are fixedly connected with the surface of the shell, the middle part of the surface of the fixed support is fixedly connected with a plurality of damping springs, and the other ends of the damping springs are fixedly connected with the bottom surface of the shell.

Preferably, the four corners of the bottom surface of the fixing support are vertically fixed with screws, fixing feet are sleeved at the bottom ends of the screws, and the fixing feet are fixedly connected with the screws in a threaded mode.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the action of the cooling water pipe, the water storage tank, the first circulating pipeline, the second circulating pipeline and the heat exchanger, heat exchange is carried out between the cooling water and the inner shell, so that the heat dissipation effect on the inner shell is realized, and the condition that the shielding pump is damaged due to overhigh temperature is prevented.

The invention can play a role of shock absorption and buffering when the canned motor pump runs by matching the fixed support, the shock absorption spring, the screw rod and the fixed bottom foot, improve the service life of the canned motor pump, adjust the height of the canned motor pump during installation, enlarge the application range, keep the canned motor pump in a horizontal state all the time when the canned motor pump is installed on an inclined plane or a curved surface, and reduce the gravity influence caused by the inclination of the canned motor pump.

Drawings

Fig. 1 is a schematic overall perspective view of embodiment 1 of the present invention;

FIG. 2 is a schematic view of the overall structure of embodiment 1 of the present invention;

fig. 3 is an overall perspective view of embodiment 2 of the present invention.

In the figure: 1. a housing; 2. an inner shell; 3. a rotating shaft; 4. a rotor assembly; 5. a stator assembly; 6. a bearing; 7. a connecting ring; 8. a heat dissipation cavity; 9. a cooling water pipe; 10. a first circulation pipe; 11. a second circulation pipe; 12. a water storage tank; 13. a heat exchanger; 14. a protrusion; 15. an impeller; 16. a base; 17. a connecting plate; 18. fixing a bracket; 19. a damping spring; 20. a screw; 21. and fixing the bottom feet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1:

referring to fig. 1-2, the present invention provides a technical solution: a shielding pump with good heat dissipation effect comprises an outer shell 1, an inner shell 2 and a base 16; the inner shell 2 is arranged in the outer shell 1, a rotating shaft 3 is horizontally arranged in the inner shell 2, a rotor assembly 4 is fixedly sleeved in the middle of the surface of the rotating shaft 3, a stator assembly 5 is arranged at a position corresponding to the inner wall of the inner shell 2, and the stator assembly 5 is matched with the rotor assembly 4; bearings 6 are arranged on the surface of the rotating shaft 3 and positioned on two sides of the rotor assembly 4, the rotating shaft 3 is hermetically connected with the inner shell 2 through the bearings 6, and one end of the rotating shaft 3 is fixedly connected with the impeller 15; the heat dissipation structure is characterized in that connecting rings 7 are arranged at two ends of the surface of the inner shell 2, the inner shell 2 is connected with the inner wall of the outer shell 1 through the connecting rings 7, a heat dissipation cavity 8 is arranged between the inner shell 2 and the outer shell 1, and a heat dissipation assembly is arranged in the heat dissipation cavity 8.

Further, the heat dissipation assembly comprises a cooling water pipe 9, a first circulation pipe 10 and a water storage tank 12; the water storage tank 12 is fixed on the surface of the shell 1.

Furthermore, the cooling water pipe 9 is spirally wound on the surface of the inner shell 2, one end of the cooling water pipe 9 is communicated with the inside of the water storage tank 12, and the other end is communicated with the first circulation pipe 10.

Furthermore, the other end of the first circulating pipe 10 is communicated with one side of a heat exchanger 13, the other side of the heat exchanger 13 is communicated with a second circulating pipe 11, and the other end of the second circulating pipe 11 is communicated with a water storage tank 12.

Furthermore, a first threaded portion is formed on the side surface of the connecting ring 7, a second threaded portion is correspondingly formed on the inner wall of the outer shell 1 and the surface of the inner shell 2, and the connecting ring 7 is in threaded connection with the outer shell 1 and the inner shell 2 through the matching of the first threaded portion and the second threaded portion.

Further, the connecting ring 7 is provided with a protrusion 14 extending outward from the surface.

Further, the bottom end of the housing 1 is fixedly connected with the base 16 through a connecting plate.

The working principle is as follows: the invention provides a shielding pump with good heat dissipation effect, which comprises an outer shell 1, an inner shell 2 and a base 16; the inner shell 2 is arranged in the outer shell 1, the rotating shaft 3 is horizontally arranged in the inner shell 2, the rotor assembly 4 is fixedly sleeved in the middle of the surface of the rotating shaft 3, the stator assembly 5 is arranged at a position corresponding to the inner wall of the inner shell 2, the stator assembly 5 and the rotor assembly 4 are matched with each other, the rotating shaft 3 can rotate through the matching of the rotor assembly 4 and the stator assembly 5, and the sealing performance of the rotating shaft 3 and the inner shell 2 is ensured through the bearing 6; when heat dissipation is needed, cooling water in the water storage tank 12 enters the cooling water pipe 9, the cooling water pipe 9 is wound on the surface of the inner shell 2 and can exchange heat with the inner shell 2, so that the heat dissipation and cooling effects on the inner part of the inner shell 2 are achieved, the temperature of the cooling water rises after heat exchange, the cooling water enters the heat exchanger 13 through the first circulating pipe 10, the cooling water is cooled by the heat exchanger 13 and enters the water storage tank 12 through the second circulating pipe 11, and the recycling of the cooling water is achieved; the inner shell 2 and the outer shell 1 are connected with each other through the connecting ring 7, the connecting ring 7 is in threaded connection with the inner shell 2 and the outer shell 1, and the surface of the connecting ring 7 is provided with the bulge 14, so that a worker can conveniently repair the cooling water pipe 9 in the heat dissipation cavity 8 after detaching the connecting ring 7.

Example 2:

as shown in fig. 3, the difference between the embodiment 2 and the embodiment 1 is that a fixing bracket 18 is provided at the bottom end of the housing 1, both sides of the top end of the fixing bracket 18 are fixedly connected with the surface of the housing 1, a plurality of damping springs 19 are provided in the middle of the surface of the fixing bracket 18, the other ends of the damping springs 19 are fixedly connected with the bottom surface of the housing 1, when the canned motor pump is operated, the damping spring 19 can play a role of damping and buffering the canned motor pump, thereby prolonging the service life, screw rods 20 are vertically fixed at four corners of the bottom surface of the fixed support 18, supporting feet 21 are sleeved at the bottom ends of the screw rods 20, the supporting feet 21 are in threaded connection with the screw rods 20, through the threaded connection of the supporting feet 21 and the screw rod 20, the height of the canned motor pump during installation can be adjusted, the application range is expanded, the canned motor pump can be always kept in a horizontal state during inclined plane or curved surface installation, and the gravity influence caused by the inclination of the canned motor pump is reduced.

It is worth noting that: the whole device is controlled by the master control button, and the equipment matched with the control button is common equipment, so that the device belongs to the prior art, and the electrical connection relation and the specific circuit structure of the device are not repeated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.