CN212774943U

CN212774943U - Cooling device for canned motor pump

Info

Publication number: CN212774943U
Application number: CN202021817650.2U
Authority: CN
Inventors: 田喜军
Original assignee: Dalian Connell Pump Co ltd
Current assignee: Dalian Connell Pump Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-03-23
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a cooling device for a shield pump, which comprises a pump body, wherein a driving motor penetrates through the middle inside the pump body, a plurality of groups of cooling pipelines are arranged at the inner side of the pump body, a first rotating wheel is fixed at the outer side of the driving motor and is rotationally connected with a second rotating wheel through a belt strip, and the other side of the second rotating wheel is fixedly connected with a pulley flange, the cooling device for the shield pump generates pressure through the heating liquid of the pump body, when the pressure generated by heating exceeds the bearing pressure of a spring valve, the pressure pushes the spring valve to move upwards, a hose is fixed at one side of the spring valve, the other side of the hose is inserted in an expansion tank, so that the cooling liquid flows into the expansion tank until the pressure is reduced to a normal working value, when the system is cooled, the vacuum in the system can suck back the cooling liquid from the expansion tank, thereby the decompression operation is completed, and the damage to, and the potential safety hazard is reduced.

Description

Cooling device for canned motor pump

Technical Field

The utility model relates to a cooling device, in particular to a cooling device for canned motor pump belongs to cooling device technical field.

Background

The canned pump is a sealless pump, the pump and the drive motor are sealed in a pressure vessel filled with the pumped medium, the pressure vessel has only static seals, and a set of electric wires provides a rotating magnetic field and drives the rotor.

In the prior art, a shield pump cooling device is usually provided with a water jacket on the inner side, the heat of an embedded water jacket inconvenient device is dissipated when a shield pump runs for a long time, and meanwhile, because the shield pump is in a sealing state, the liquid temperature rises along with the rise of the temperature, the pressure in the pump is overhigh, the device in the pump and a cooling pipeline are damaged, the heat dissipation efficiency is reduced, and therefore the cooling device for the shield pump is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cooling device for canned motor pump to solve the built-in water jacket of canned motor pump that proposes among the above-mentioned background art and the problem that the radiating efficiency is low that the pressure that leads to along with the production that the temperature risees together.

In order to achieve the above object, the utility model provides a following technical scheme: a cooling device for a canned motor pump comprises a pump body, wherein a driving motor penetrates through the middle inside the pump body, a plurality of groups of cooling pipelines are arranged on the inner side of the pump body, a first rotating wheel is fixed on the outer side of the driving motor and is rotatably connected with a second rotating wheel through a belt strip, a pulley flange is fixedly connected to the other side of the second rotating wheel, an O-shaped ring is fixed to the other side of the pulley flange, the outer side of the O-shaped ring is connected with the bottom end of the pump body through a water pipe, an impeller is fixed to the other side of the O-shaped ring, a water pipe is fixed to the other side of the impeller, the top end of the water pipe is connected with the bottom end of a thermostat shell, the outer side of the thermostat shell is connected with the top end of the pump body through a water pipe, a thermostat shell is embedded, the heat dissipation device is connected with the pressure reduction device through a hose.

As a preferred technical scheme of the utility model, constant temperature equipment includes the main valve, the main valve bottom mounting has the frame, frame bottom middle part is fixed with towards the cylinder, it is equipped with main spring to dash cylinder top cover, it is equipped with secondary spring to dash cylinder low side cover, secondary spring bottom mounting has the bypass valve.

As a preferred technical scheme of the utility model, heat abstractor includes the radiator, the radiator top is fixed with the pressure lid, radiator one side top is fixed with the water inlet, radiator one side bottom mounting has the delivery port.

As an optimal technical scheme of the utility model, pressure relief device includes the pressure lid, the pressure lid bottom end is fixed with the spring valve, spring valve one side is fixed with the hose, the hose opposite side is inserted and is established in the expansion tank.

As a preferred technical scheme of the utility model, the spring valve outside cover is equipped with the pipe, the round hole has been seted up to pipe one side, the round hole diameter equals with the hose diameter.

As a preferred technical scheme of the utility model, impeller outside cover is equipped with round platform type pipe, round platform type pipe one side diameter equals with O type circle diameter, round platform type pipe opposite side diameter equals with the water pipe diameter.

1. Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a cooling device for a canned motor pump, a worker starts a driving motor in a pump body, the driving motor drives a first runner to move, the first runner drives a second runner to move through a belt strip, a pulley flange is fixedly connected with the other side of the second runner, an O-shaped ring is fixed on the other side of the pulley flange, so that an impeller rotates to pump refrigerating fluid, the refrigerating fluid in a cooling pipeline is transported to the impeller from the top end of the pump body through a thermostat shell, the refrigerating fluid is transported to the O-shaped ring from the impeller by the impeller, and is transported to the cooling pipeline at the bottom end of the pump body through a water pipe from the O-shaped ring, small circulation is realized, the temperature is gradually increased to a certain degree, a bypass valve in the thermostat shell is closed, a main valve is opened, the cooling pipeline is connected with a heat dissipation device through the water pipe at the top end of the, the hot freezing liquid is left from the water inlet to water inlet, and the temperature reduces, under the effect of impeller, removes to pump body bottom side frame department from water outlet department through impeller side water pipe to reduce the freezing liquid temperature in the cooling tube, under the condition of guaranteeing the quiet sealed of the pump body, more effectual reduction in temperature improves work efficiency, improves the practicality of device.

2. Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a cooling device for canned motor pump, produce pressure through the pump body heating liquid, when the heating is produced pressure and is exceeded the spring valve and bear pressure, pressure promotes spring valve upward movement, be fixed with the hose through spring valve one side, the hose opposite side is inserted and is established in the expansion tank, make coolant liquid flow to inside the expansion tank, until pressure drop to normal work numerical value, during the system cooling, the interior vacuum of system can be followed the expansion tank and inhaled back the coolant liquid, thereby accomplish the decompression operation, avoid pressure too big to cause the damage to the internal device of pump, reduce the potential safety hazard.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the pump body connection structure of the present invention;

FIG. 3 is a schematic sectional view of the connecting structure of the thermostat case of the present invention;

FIG. 4 is a schematic view of the connection structure of the main valve of the present invention;

FIG. 5 is a schematic view of the pulley flange connection structure of the present invention;

FIG. 6 is a schematic view of the heat sink of the present invention;

fig. 7 is a schematic view of the pressure cover structure of the present invention.

In the figure: 1. a pump body; 2. a drive motor; 3. a cooling duct; 4. a first runner; 5. a belt strip; 6. a second runner; 7. a pulley flange; 8. an O-shaped ring; 9. an impeller; 10. a water pipe; 11. a thermostat housing; 12. a main valve; 13. a frame; 14. punching a cylinder; 15. a main spring; 16. a secondary spring; 17. a bypass valve; 18. a heat sink; 19. a pressure cap; 20. a spring valve; 21. a water inlet; 22. a water outlet; 23. a hose; 24. an expansion tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a cooling device for a canned motor pump, comprising a pump body 1, a first runner 4 is disposed outside the pump body 1, the first runner 4 is rotatably connected to a second runner 6 through a belt 5, the other side of the second runner 6 is fixedly connected to a pulley flange 7, the other side of the pulley flange 7 is fixed to an O-ring 8, the outside of the O-ring 8 is connected to the bottom end of the pump body 1 through a water pipe 10, the other side of the O-ring 8 is fixed to an impeller 9, a circular truncated cone-shaped pipe is sleeved outside the impeller 9, the diameter of one side of the circular truncated cone-shaped pipe is equal to the diameter of the O-ring 8, the diameter of the other side of the circular truncated cone-shaped pipe is equal to the diameter of the water pipe 10, the other side of the impeller 9 is fixed to a water pipe 10, the circular truncated cone-shaped pipe, the outer side of a thermostat shell 11 is connected with the top end of a pump body 1 through a water pipe 10, a thermostat device is embedded in the thermostat shell 11, a frame 13 is fixed at the bottom end of a main valve 12, an air cylinder 14 is fixed in the middle of the bottom end of the frame 13, a main spring 15 is sleeved at the top end of the air cylinder 14, a secondary spring 16 is sleeved at the lower end of the air cylinder 14, a bypass valve 17 is fixed at the bottom end of the secondary spring 16, the top end of the thermostat device is connected with a heat dissipation device through a water pipe 10, the other side of an impeller 9 is connected with the heat dissipation.

Referring to fig. 2, the present invention provides a cooling device for a canned motor pump, which includes a pump body 1, a driving motor 2 penetrating through the inside of the pump body 1, a plurality of cooling pipes 3 disposed inside the pump body 1, and a first rotating wheel 4 fixed outside the driving motor 2.

Referring to fig. 3, the present invention provides a cooling device for a canned motor pump, which comprises a thermostat housing 11 connected to the top end of a pump body 1 through a water pipe 10, a thermostat housing 11 embedded with a thermostat, a heat sink connected to the top end of the thermostat through the water pipe 10, and a thermostat bottom connected to the other side of an impeller 9 through the water pipe 10.

Referring to fig. 4, the present invention provides a cooling device for a canned motor pump, which includes a constant temperature device including a main valve 12, a frame 13 fixed to a bottom end of the main valve 12, a charging cylinder 14 fixed to a middle portion of a bottom end of the frame 13, a main spring 15 sleeved on a top end of the charging cylinder 14, a secondary spring 16 sleeved on a lower end of the charging cylinder 14, and a bypass valve 17 fixed to a bottom end of the secondary spring 16.

Referring to fig. 5, the present invention provides a cooling device for a canned motor pump, which includes a pulley flange 7, an O-ring 8 fixed to the other side of the pulley flange 7, and an impeller 9 fixed to the other side of the O-ring 8.

Referring to fig. 6, the present invention provides a cooling device for a canned motor pump, which includes a heat sink 18, a pressure cover 19 fixed on the top of the heat sink 18, a water inlet 21 fixed on the top of one side of the heat sink 18, and a water outlet 22 fixed on the bottom of one side of the heat sink 18.

Please refer to fig. 7, the utility model provides a cooling device for canned motor pump, include pressure lid 19 including pressure relief device, 19 bottom mounting of pressure lid has spring valve 20, spring valve 20 outside cover is equipped with the pipe, the round hole has been seted up to pipe one side, the round hole diameter equals with hose 23 diameter, make spring valve 20 one side can be fixed with hose 23, reach the purpose that carries frozen liquid line pressure lid 19 to the expansion tank 24 in, hose 23 opposite side is inserted and is established in expansion tank 24, spring valve 20 outside cover is equipped with the pipe, the round hole has been seted up to pipe one side, the round hole diameter equals with hose 23 diameter, impeller 9 outside cover is equipped with the round platform type pipe, round platform type pipe one side diameter equals with O type circle 8 diameter, round platform type pipe opposite side diameter equals with water pipe 10 diameter.

When the cooling device is used, when a worker starts the canned motor pump, the pump body 1 drives the driving motor 2 to move, the driving motor 2 drives the first rotating wheel 4 to move, the first rotating wheel 4 drives the second rotating wheel 6 to move through the belt strip 5, the other side of the second rotating wheel 6 is fixedly connected with the pulley flange 7, the other side of the pulley flange 7 is fixedly provided with the O-shaped ring 8, so that the impeller 9 rotates to pump refrigerating fluid, the refrigerating fluid in the cooling pipeline 3 is conveyed to the impeller 9 from the top end of the pump body 1 through the thermostat shell 11, the impeller 9 pumps the refrigerating fluid to be conveyed to the O-shaped ring 8 from the impeller 9, the O-shaped ring 8 is conveyed to the cooling pipeline 3 at the bottom end of the pump body 1 through the water pipe 10, small circulation is realized, the refrigerating fluid gradually rises to a certain degree along with the temperature, the bypass valve 17 in the thermostat shell 11 is closed, the main valve 12 is opened, and is, the hot refrigerating fluid in the cooling pipeline 3 is conveyed to a water inlet 21 at the top end of one side of the radiator 18 through a water pipe 10 at the top end of the thermostat shell 11, the hot refrigerating fluid is left from the water inlet 21 to the water inlet 21, the temperature is reduced, and the hot refrigerating fluid moves to a frame 13 at the bottom side of the pump body 1 from a water outlet 22 through the water pipe 10 at one side of the impeller 9 under the action of the impeller 9, so that the temperature of the refrigerating fluid in the cooling pipeline 3 is reduced, and the cooling operation is finished.

When the pressure generated by heating exceeds the pressure borne by the spring valve 20, the spring valve 20 is pushed to move upwards, a hose 23 is fixed on one side of the spring valve 20, the other side of the hose 23 is inserted into the expansion tank 24, so that the cooling liquid flows into the expansion tank 24 until the pressure is reduced to a normal working value, and when the system is cooled, the vacuum in the system can suck the cooling liquid back from the expansion tank 24, thereby completing the pressure reduction operation.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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.

Claims

1. A cooling device for a shield pump comprises a pump body (1) and is characterized in that a driving motor (2) penetrates through the middle inside the pump body (1), a plurality of groups of cooling pipelines (3) are arranged on the inner side of the pump body (1), a first rotating wheel (4) is fixed on the outer side of the driving motor (2), the first rotating wheel (4) is rotatably connected with a second rotating wheel (6) through a belt strip (5), a pulley flange (7) is fixedly connected to the other side of the second rotating wheel (6), an O-shaped ring (8) is fixed on the other side of the pulley flange (7), the outer side of the O-shaped ring (8) is connected with the bottom end of the pump body (1) through a water pipe (10), an impeller (9) is fixed to the other side of the O-shaped ring (8), a water pipe (10) is fixed to the other side of the impeller (9), and the top end of the water pipe (10), the pump comprises a thermostat shell (11), a pump body (1) and a heat dissipation device, wherein the outside of the thermostat shell (11) is connected with the top end of the pump body (1) through a water pipe (10), the thermostat shell (11) is embedded with the thermostat, the top end of the thermostat is connected with the heat dissipation device through the water pipe (10), the other side of an impeller (9) is connected with the heat dissipation device through the water pipe (10), and the heat dissipation device is connected with a pressure reduction device through a hose (23).

2. A cooling device for a canned motor pump according to claim 1, characterized in that: the thermostatic device comprises a main valve (12), a frame (13) is fixed to the bottom end of the main valve (12), a punching cylinder (14) is fixed to the middle of the bottom end of the frame (13), a main spring (15) is sleeved on the top end of the punching cylinder (14), a secondary spring (16) is sleeved on the lower end of the punching cylinder (14), and a bypass valve (17) is fixed to the bottom end of the secondary spring (16).

3. A cooling device for a canned motor pump according to claim 1, characterized in that: the heat dissipation device comprises a heat radiator (18), a pressure cover (19) is fixed at the top end of the heat radiator (18), a water inlet (21) is fixed at the top end of one side of the heat radiator (18), and a water outlet (22) is fixed at the bottom end of one side of the heat radiator (18).

4. A cooling device for a canned motor pump according to claim 1, characterized in that: the pressure reducing device comprises a pressure cover (19), a spring valve (20) is fixed at the bottom end of the pressure cover (19), a hose (23) is fixed on one side of the spring valve (20), and the other side of the hose (23) is inserted into an expansion tank (24).

5. A cooling apparatus for a canned motor pump according to claim 4, wherein: the spring valve (20) outside cover is equipped with the pipe, the round hole has been seted up to pipe one side, the round hole diameter equals with hose (23) diameter.

6. A cooling device for a canned motor pump according to claim 1, characterized in that: the outer side of the impeller (9) is sleeved with a circular truncated cone-shaped pipe, the diameter of one side of the circular truncated cone-shaped pipe is equal to that of the O-shaped ring (8), and the diameter of the other side of the circular truncated cone-shaped pipe is equal to that of the water pipe (10).