CN116498570B - Self-heat-dissipation type circulating centrifugal pump - Google Patents
Self-heat-dissipation type circulating centrifugal pump Download PDFInfo
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- CN116498570B CN116498570B CN202310773250.8A CN202310773250A CN116498570B CN 116498570 B CN116498570 B CN 116498570B CN 202310773250 A CN202310773250 A CN 202310773250A CN 116498570 B CN116498570 B CN 116498570B
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- pump
- end cover
- water
- pump body
- circulation box
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 10
- 239000012535 impurity Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a self-heat-dissipation type circulating centrifugal pump, which relates to the technical field of centrifugal pumps. According to the invention, when the pump shaft rotates, the pump shaft synchronously drives the water absorbing impeller to rotate in the circulation box, the water absorbing impeller enables the inside of the circulation box to form negative pressure, and as the circulation box is connected with the pump body through the first circulating pipe, part of water flowing in the pump body can be absorbed into the inside of the circulation box through the first circulating pipe by the rotation of the water absorbing impeller, under the action of the water absorbing impeller, the water entering the inside of the circulation box enters the cooling cavity inside the shell through a plurality of groups of flow pipes, and then the water in the cooling cavity can cool the stator and the rotor inside the shell to a certain degree, so that the problem that the rotor and the stator inside the motor are damaged due to poor heat dissipation effect caused by long-time use of the centrifugal pump is effectively avoided, and the high-temperature resistant use characteristic of the centrifugal pump is greatly improved.
Description
Technical Field
The invention relates to the technical field of centrifugal pumps, in particular to a self-heat-dissipation type circulating centrifugal pump.
Background
The centrifugal pump is a pump which is used for conveying liquid by centrifugal force generated when the impeller rotates, the centrifugal pump is operated by utilizing the centrifugal force generated when the impeller rotates to enable water to perform centrifugal motion, before the water pump is started, the pump shell and the water suction pipe are required to be filled with water, then the motor is started, the pump shaft drives the impeller and the water to perform high-speed rotation motion, the water performs centrifugal motion and is thrown to the outer edge of the impeller, and the water flows into a drainage pipeline of the water pump through a runner of the volute pump shell.
The basic components of the centrifugal pump are a high-speed rotating impeller and a fixed snail-shaped pump shell, the impeller with a plurality of (usually 4-12) backward bent blades is fastened on a pump shaft and rotates at a high speed along with the driving action of the pump shaft by a motor, when the motor drives the impeller to rotate at a high speed for a long time, certain heat is generated in the motor, and the heat is gradually accumulated in the motor of the centrifugal pump.
In the prior art, when the motor is used for driving the impeller to drive water to rotate at a high speed in the centrifugal pump, the motor only carries out gas cooling through the fan inside the motor, if the motor is used for a long time, the gas cooling is difficult to effectively discharge heat emitted by the motor in long-time operation, so that the high temperature resistance of the motor for driving the centrifugal pump is poor.
Disclosure of Invention
Based on the above, the invention aims to provide a self-heat-dissipation type circulating centrifugal pump so as to solve the technical problem that in the prior art, the heat dissipated by a motor running for a long time is difficult to be effectively discharged by gas cooling, so that the high temperature resistance of the motor driving the centrifugal pump is poor.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a from circulating centrifugal pump of heat dissipation type, includes the pump body, pump body one side is fixed with closing plate, front end housing, shell and rear end cap in proper order, rotate between front end housing and the rear end cap and be connected with the pump shaft that runs through the closing plate and extend to the inside of the pump body, the pump shaft outside is fixed with the centrifugal impeller that is located the inside of the pump body, the water inlet has been seted up to pump body one side, the outlet has been seted up at pump body top, and water inlet and outlet are connected with external pipeline respectively;
the front end cover is fixedly arranged on one side of the front end cover, one side of the front end cover is fixedly connected with the front end cover, the other side of the front end cover is movably connected with the front end cover, a sealing ring is arranged at the contact part of the front end cover and the front end cover, a water absorption impeller is fixedly arranged inside the front end cover, a cooling cavity is arranged inside the casing, a plurality of groups of flow pipes extending to the inside of the casing are uniformly and alternately fixed on the outer side of the front end cover, the flow boxes are communicated with the cooling cavity through the flow pipes, a first circulating pipe penetrating through the front end cover and communicated with the flow boxes is arranged at the bottom of one side of the pump body, and one side of the bottom of the casing is communicated with the inside of the pump body through a second circulating pipe;
the novel heat pump is characterized in that a first one-way valve is fixed inside the first circulating pipe, a second one-way valve is fixed inside the second circulating pipe, a rotor is fixed at the position, located on one side of the circulating box, of the outer side of the pump shaft, a stator matched with the rotor is fixed on the inner wall of the shell, a heat dissipation impeller located on the inner side of the rear end cover is fixed on the outer side of the pump shaft, multiple groups of first air suction holes are obliquely formed in two ends of the outer side of the front end cover, second air suction holes communicated with the first air suction holes are formed in the inner side of the front end cover, multiple groups of exhaust holes are uniformly formed in the surface of the rear end cover, and the shell is communicated with the outside through the first air suction holes, the second air suction holes and the exhaust holes.
Through adopting above-mentioned technical scheme, drive centrifugal impeller through the pump shaft rotation and rotate in the pump body inside, external water gets into from the water inlet under centrifugal impeller's centrifugal action, the outlet discharges, when the pump shaft rotates, the pump shaft synchronous drive water absorption impeller is rotatory in the circulation box inside, water absorption impeller makes the inside negative pressure that forms of circulation box, be connected through first circulating pipe between circulation box and the pump body, that is to say, the inside of pump body and the inside intercommunication each other of circulation box through first circulating pipe, and then water absorption impeller rotation can be with the inside of the inside water suction circulation box of pump body through first circulating pipe, under the effect of water absorption impeller, make the inside water of entering circulation box get into the inside cooling chamber of shell through multiunit flow pipe, and then the inside water-cooling of cooling chamber can carry out certain degree to the inside stator of shell and rotor, and the inside rotor of centrifugal pump has effectively avoided the long-time use of centrifugal pump to lead to the inside rotor, stator radiating effect is relatively poor and lead to the problem that takes place to damage, thereby the high temperature resistant service characteristic of centrifugal pump has been greatly improved.
The invention is further characterized in that the outside of the first circulating pipe is fixedly provided with a filter box matched with the first circulating pipe, and the filter box is detachably connected with the first circulating pipe.
Through adopting above-mentioned technical scheme, wherein the filter box can filter the inside water of pump body entering first circulating pipe, and then avoids aquatic impurity to get into the inside problem that causes the jam of circulating box.
The invention is further characterized in that one side of the front end cover is fixedly provided with a connecting ring extending to the inside of the sealing plate, and four corners of the outer side of the pump body are respectively provided with connecting bolts penetrating through the pump body, the sealing plate and the connecting ring.
Through adopting above-mentioned technical scheme, through go up the effect of go-between and connecting bolt under, make firm in connection between pump body, closing plate and the front end housing.
The invention is further characterized in that a water injection pipe communicated with the cooling cavity is fixedly arranged on one side of the top of the shell, and a sealing nut is arranged inside the water injection pipe.
Through adopting above-mentioned technical scheme, wherein the water injection pipe is convenient for in advance to the inside water injection before the cooling, and then produces the negative pressure and circulate the guide flow to the inside rivers of pump body when being convenient for absorb water impeller rotation.
The invention is further characterized in that the bottom of the shell is fixedly provided with a supporting frame, and the bottom of the pump body is fixedly provided with supporting feet which are flush with the bottom of the supporting frame.
By adopting the technical scheme, the supporting frame and the supporting legs play a role in supporting and fixing the whole body of the invention.
In summary, the invention has the following advantages:
1. according to the invention, the centrifugal impeller is driven to rotate in the pump body through the rotation of the pump shaft, external water enters from the water inlet and is discharged from the water outlet under the centrifugal action of the centrifugal impeller, when the pump shaft rotates, the pump shaft synchronously drives the water suction impeller to rotate in the circulation box, the water suction impeller enables the inside of the circulation box to form negative pressure, the circulation box is connected with the pump body through the first circulating pipe, the inside of the pump body is communicated with the inside of the circulation box through the first circulating pipe, and then the water suction impeller rotates to suck a part of water flowing in the pump body into the inside of the circulation box through the first circulating pipe, and under the action of the water suction impeller, the water entering the inside of the circulation box enters into the cooling cavity in the shell through a plurality of groups of flow pipes, so that the water inside the cooling cavity can cool the stator and the rotor inside the shell to a certain degree, and the problem that the rotor inside the motor is damaged due to poor heat dissipation effect caused by long-time use of the centrifugal pump is effectively avoided, and the high-temperature-resistant use characteristic of the centrifugal pump is greatly improved;
2. when the pump shaft rotates, the pump shaft synchronously drives the heat dissipation impeller to rotate, the heat dissipation impeller sucks external gas from a plurality of groups of first air suction holes and second air suction holes at the front end cover, the sucked gas enters between the stator and the rotor from the outside, and then is discharged through a plurality of groups of exhaust holes on the surface of the rear end cover.
Drawings
FIG. 1 is a schematic view of a first view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the invention at A of FIG. 2;
FIG. 4 is an exploded view of the internal structure of the present invention;
FIG. 5 is an enlarged view of the invention at B of FIG. 4;
FIG. 6 is a partial structural cutaway view of the present invention;
FIG. 7 is a partial cross-sectional view of the present invention;
FIG. 8 is an exploded view of a portion of the structure of the present invention;
fig. 9 is a schematic structural view of the second view of the present invention.
In the figure: 1. a pump body; 2. a centrifugal impeller; 3. a pump shaft; 4. a sealing plate; 5. a front end cover; 6. a flow-through box; 7. a water-absorbing impeller; 8. a flow tube; 9. a housing; 10. a cooling chamber; 11. a stator; 12. a rotor; 13. a first circulation pipe; 14. a second circulation pipe; 15. a filter box; 16. a first one-way valve; 17. a second one-way valve; 18. a heat dissipation impeller; 19. a first air suction hole; 20. a second air suction hole; 21. a rear end cover; 22. a connecting ring; 23. a connecting bolt; 24. a water injection pipe; 25. a water inlet; 26. a water outlet; 27. and (5) supporting frames.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
1-9, a self-heat-dissipation type circulating centrifugal pump comprises a pump body 1, wherein a sealing plate 4, a front end cover 5, a shell 9 and a rear end cover 21 are sequentially fixed on one side of the pump body 1, a pump shaft 3 penetrating through the sealing plate 4 and extending into the pump body 1 is rotatably connected between the front end cover 5 and the rear end cover 21, a centrifugal impeller 2 positioned in the pump body 1 is fixed on the outer side of the pump shaft 3, a water inlet 25 is formed on one side of the pump body 1, a water outlet 26 is formed at the top of the pump body 1, and the water inlet 25 and the water outlet 26 are respectively connected with an external pipeline;
a circulation box 6 positioned at the outer side of the pump shaft 3 is fixed at one side of the front end cover 5, wherein one side of the circulation box 6 is fixedly connected with the front end cover 5, the other side of the circulation box 6 is positioned at the outer side of the pump shaft 3 and is movably connected with the front end cover 5, a sealing ring is arranged at the contact part of the circulation box 6 and the pump shaft 3, a water sucking impeller 7 is fixed at the outer side of the pump shaft 3, a cooling cavity 10 is arranged in the casing 9, a plurality of groups of flow pipes 8 extending to the inside of the casing 9 are uniformly and alternately fixed at the outer side of the circulation box 6, the circulation box 6 and the cooling cavity 10 are communicated through the flow pipes 8, a first circulating pipe 13 penetrating through the front end cover 5 and communicated with the circulation box 6 is arranged at the bottom of one side of the pump body 1, water in the pump body 1 is sucked into the inside of the circulation box 6 through the first circulating pipe 13 under the action of the water sucking impeller 7, one side of the casing 9 is communicated with the inside the pump body 1 through a second circulating pipe 14, under the action of the second circulating pipe 14, water in the cooling cavity 10 is circulated and flows back into the pump body 1 and is discharged through the water outlet 26, under the action of the water absorption impeller 7, the water entering the inside of the circulation box 6 enters the cooling cavity 10 in the shell 9 through a plurality of groups of the flow pipes 8, and then the water in the cooling cavity 10 can cool the stator 11 and the rotor 12 in the shell 9 to a certain degree, wherein under the action of the water in the cooling cavity 10, the heat generated by the stator 11 and the rotor 12 can be absorbed to a certain degree, so that the problem that the rotor 12 and the stator 11 in the motor are damaged due to poor heat dissipation effect caused by long-time use of the centrifugal pump is effectively avoided, and the high-temperature-resistant use characteristic of the centrifugal pump is greatly improved;
the inside first check valve 16 that is fixed with of first circulating pipe 13, the inside second check valve 17 that is fixed with of second circulating pipe 14, the pump shaft 3 outside is fixed with the position department that is located circulation box 6 one side and is fixed with rotor 12, shell 9 inner wall is fixed with the stator 11 that cooperatees with rotor 12, the pump shaft 3 outside is fixed with the heat dissipation impeller 18 that is located the rear end cover 21 inboard, wherein the outside both ends of front end cover 5 all slope have seted up multiunit first suction hole 19, the inside second suction hole 20 that is linked together with first suction hole 19 that all has been seted up of front end cover 5, and the multiunit exhaust hole has evenly been seted up on rear end cover 21 surface, and shell 9 passes through first suction hole 19, second suction hole 20 and exhaust hole and external intercommunication, when heat dissipation impeller 18 is rotatory along with the pump shaft 3, the clearance reentrant stator 11 and rotor 12 that form between the multiunit flow tube 8 is passed through from the external through to the external, and because the inside water that has the inside suction hole of the pump body 1 at this moment, and when the external gas flow 8 outside, and when all set of the time, the second suction hole 20 is all has been seted up with the first suction hole 19, the second suction hole 20, and the temperature of the air flow 8 is cooled down in the casing 11 that the temperature of the flow 8 is carried out in the flow 8, and the temperature of the rotor is further cooling effect is reduced, and the temperature is further cooled down, and is further cooled, and is compared with the temperature and is cooled, and is further, and is compared, and by the temperature, and is 8.
Referring to fig. 2 and 4, a filter box 15 is fixed on the outer side of the first circulation pipe 13, and the filter box 15 and the first circulation pipe 13 are detachably connected, and by the arrangement of the above structure, the filter box 15 can filter water entering the first circulation pipe 13 from the pump body 1, so as to avoid the problem of blockage caused by impurities in water entering the circulation box 6.
Referring to fig. 6 and 7, a connecting ring 22 extending into the sealing plate 4 is fixed on one side of the front end cover 5, and connecting bolts 23 penetrating through the pump body 1, the sealing plate 4 and the connecting ring 22 are arranged at four corners of the outer side of the pump body 1.
Referring to fig. 1 and 4, a water injection pipe 24 communicated with the cooling cavity 10 is fixedly arranged at one side of the top of the casing 9, and a sealing nut is arranged in the water injection pipe 24.
Referring to fig. 1, 2 and 9, a supporting frame 27 is fixed at the bottom of the casing 9, and supporting feet flush with the bottom of the supporting frame 27 are fixed at the bottom of the pump body 1.
The working principle of the invention is as follows: when the centrifugal pump is used, firstly, the inside of the pump body 1 is filled with water, then the cooling cavity 10, the circulation box 6, the flow pipe 8, the first circulation pipe 13 and the second circulation pipe 14 are filled with water through the water injection pipe 24, the power supply is connected, the rotor 12 is driven by the electric brush to rotate under the action of the stator 11 to drive the pump shaft 3 to move, the pump shaft 3 drives the centrifugal impeller 2 to rotate in the pump body 1, the pump shaft 3 rotates to drive the centrifugal impeller 2 to rotate in the pump body 1, and external water enters from the water inlet 25 and is discharged from the water outlet 26 under the centrifugal action of the centrifugal impeller 2;
when the pump shaft 3 rotates, the pump shaft 3 synchronously drives the water suction impeller 7 to rotate in the circulation box 6, the water suction impeller 7 enables negative pressure to be formed in the circulation box 6, and the circulation box 6 is connected with the pump body 1 through the first circulating pipe 13, namely, the inside of the pump body 1 and the inside of the circulation box 6 are mutually communicated through the first circulating pipe 13, and then the water suction impeller 7 rotates to suck part of water flowing in the pump body 1 into the inside of the circulation box 6 through the first circulating pipe 13;
under the action of the water absorption impeller 7, water entering the circulation box 6 enters the cooling cavity 10 inside the shell 9 through a plurality of groups of flow pipes 8, so that the water inside the cooling cavity 10 can cool the stator 11 and the rotor 12 inside the shell 9 to a certain degree, the problem that the rotor 12 and the stator 11 inside the motor are damaged due to poor heat dissipation effect of the centrifugal pump for a long time is effectively avoided, and the high-temperature-resistant use characteristic of the centrifugal pump is greatly improved;
the water entering the cooling cavity 10 circularly flows back into the pump body 1 through the second circulating pipe 14, wherein the first circulating pipe 13 is internally provided with a first one-way valve 16, and then under the action of the first one-way valve 16, the water in the pump body 1 can only enter the inside of the circulating box 6 through the first circulating pipe 13, otherwise, the water cannot enter the inside of the circulating box 6, the second circulating pipe 14 is internally provided with a second one-way valve 17, and under the action of the second one-way valve 17, the water in the cooling cavity 10 can only flow back into the inside of the pump body 1 through the second circulating pipe 14, otherwise, the water cannot enter the inside of the pump body 1;
a filter box 15 is arranged at the first circulating pipe 13, wherein the filter box 15 can filter water entering the first circulating pipe 13 from the pump body 1, so that the problem of blockage caused by impurities in the water entering the circulating box 6 is avoided;
when the pump shaft 3 rotates, the pump shaft 3 synchronously drives the heat dissipation impeller 18 to rotate, the heat dissipation impeller 18 sucks external air from a plurality of groups of first air suction holes 19 and second air suction holes 20 at the front end cover 5, and the air sucked from the outside enters between the stator 11 and the rotor 12 and is discharged through a plurality of groups of air discharge holes on the surface of the rear end cover 21;
because the multiple groups of flow pipes 8 outside the flow box 6 are all arranged at intervals, that is, a certain gap exists between every two groups of flow pipes 8, gas sucked from the outside passes through the gap between the flow pipes 8 and then enters between the stator 11 and the rotor 12, and because water sucked from the inside of the pump body 1 exists in the flow pipes 8 at the moment, when the outside gas passes through the outside of the flow pipes 8, the water in the flow pipes 8 can cool the gas to a certain degree, so that the temperature of the gas blown into the space between the stator 11 and the rotor 12 is reduced, the heat generated by the stator 11 and the rotor 12 is cooled more rapidly, and the overall heat dissipation and cooling effect is further improved;
in general, when the pump shaft 3 rotates to operate in the pump body 1 through the centrifugal impeller 2, water flowing in the pump body 1 can enter the circulation box 6 through the first circulating pipe 13 under the action of the water-absorbing impeller 7, then enter the cooling cavity 10 again through the action of the plurality of groups of the flow pipes 8, finally the water in the cooling cavity 10 flows back to the pump body 1 through the second circulating pipe 14, and when the centrifugal pump operates, water can circulate to flow to cool the stator 11 and the rotor 12, so that the overall cooling effect is better.
Although embodiments of the invention have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the invention as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the invention, provided that such modifications are within the scope of the appended claims.
Claims (7)
1. The utility model provides a from circulating centrifugal pump of heat dissipation type, includes the pump body (1), its characterized in that: a sealing plate (4), a front end cover (5), a shell (9) and a rear end cover (21) are sequentially fixed on one side of the pump body (1), and a pump shaft (3) penetrating the sealing plate (4) and extending into the pump body (1) is rotationally connected between the front end cover (5) and the rear end cover (21);
the novel water pump is characterized in that a circulation box (6) positioned at the outer side of the pump shaft (3) is fixed at one side of the front end cover (5), a water absorption impeller (7) positioned in the circulation box (6) is fixed at the outer side of the pump shaft (3), a cooling cavity (10) is formed in the shell (9), a plurality of groups of flow pipes (8) extending to the inside of the shell (9) are uniformly and alternately fixed at the outer side of the circulation box (6), the circulation box (6) and the cooling cavity (10) are communicated through the flow pipes (8), a first circulation pipe (13) penetrating through the front end cover (5) and communicated with the circulation box (6) is arranged at the bottom of one side of the pump body (1), and one side of the bottom of the shell (9) is communicated with the inside of the pump body (1) through a second circulation pipe (14);
the novel air conditioner is characterized in that a first check valve (16) is fixed inside the first circulating pipe (13), a second check valve (17) is fixed inside the second circulating pipe (14), a rotor (12) located at one side of the circulating box (6) is fixed outside the pump shaft (3), a stator (11) matched with the rotor (12) is fixed on the inner wall of the shell (9), a heat dissipation impeller (18) located on the inner side of the rear end cover (21) is fixed on the outer side of the pump shaft (3), a plurality of groups of first air suction holes (19) are obliquely formed in two ends of the outer side of the front end cover (5), a second air suction hole (20) communicated with the first air suction holes (19) are formed in the front end cover (5), a plurality of groups of air discharge holes are uniformly formed in the surface of the rear end cover (21), and the shell (9) is communicated with the outside through the first air suction holes (19), the second air suction holes (20) and the air discharge holes.
2. The self-heat-dissipating circulating centrifugal pump of claim 1, wherein: the centrifugal impeller is characterized in that a centrifugal impeller (2) positioned inside the pump body (1) is fixed on the outer side of the pump shaft (3), a water inlet (25) is formed in one side of the pump body (1), a water outlet (26) is formed in the top of the pump body (1), and the water inlet (25) and the water outlet (26) are connected with an external pipeline respectively.
3. The self-heat-dissipating circulating centrifugal pump of claim 1, wherein: the outside of the first circulating pipe (13) is fixedly provided with a filter box (15) matched with the first circulating pipe, and the filter box (15) is detachably connected with the first circulating pipe (13).
4. The self-heat-dissipating circulating centrifugal pump of claim 1, wherein: connecting rings (22) extending into the sealing plate (4) are fixed on one side of the front end cover (5), and connecting bolts (23) penetrating through the pump body (1), the sealing plate (4) and the connecting rings (22) are arranged at four corners of the outer side of the pump body (1).
5. The self-heat-dissipating circulating centrifugal pump of claim 1, wherein: a water injection pipe (24) communicated with the cooling cavity (10) is fixedly arranged on one side of the top of the shell (9), and a sealing screw cap is arranged inside the water injection pipe (24).
6. The self-heat-dissipating circulating centrifugal pump of claim 1, wherein: one side of the circulation box (6) is fixedly connected with the front end cover (5), the other side of the circulation box (6) is positioned on the outer side of the pump shaft (3) and is movably connected with the pump shaft (3), and a sealing ring is arranged at the contact part of the circulation box (6) and the pump shaft (3).
7. The self-heat-dissipating circulating centrifugal pump of claim 1, wherein: the bottom of the shell (9) is fixedly provided with a supporting frame (27), and the bottom of the pump body (1) is fixedly provided with supporting feet which are flush with the bottom of the supporting frame (27).
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| CN202310773250.8A CN116498570B (en) | 2023-06-28 | 2023-06-28 | Self-heat-dissipation type circulating centrifugal pump |
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| CN202310773250.8A CN116498570B (en) | 2023-06-28 | 2023-06-28 | Self-heat-dissipation type circulating centrifugal pump |
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| CN116498570B true CN116498570B (en) | 2023-09-22 |
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| CN116498570A (en) | 2023-07-28 |
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