CN219605646U - Centrifugal pump with freeze-proof function - Google Patents
Centrifugal pump with freeze-proof function Download PDFInfo
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- CN219605646U CN219605646U CN202320173527.9U CN202320173527U CN219605646U CN 219605646 U CN219605646 U CN 219605646U CN 202320173527 U CN202320173527 U CN 202320173527U CN 219605646 U CN219605646 U CN 219605646U
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- centrifugal pump
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- impeller
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Abstract
The utility model relates to the technical field of pumps, and provides a centrifugal pump with an antifreezing function, which comprises a pump body and an impeller shell fixedly arranged on one side of the pump body, wherein a groove is formed in the bottom surface of the impeller shell, an antifreezing device is arranged in the groove, and the antifreezing device comprises: a water draining component fixed at the bottom of the impeller shell; a support member slidably disposed within the drain member; the heating component is fixed at the top of the inner pipe body and is attached to the groove; when water is accumulated at the bottom of the impeller shell to freeze, if the water is required to be timely thawed, the electric heating wire can work to generate heat, and the arc-shaped heat conducting plate transfers the heat to the impeller shell, so that ice cubes at the bottom of the impeller shell are quickly melted, the problem that the impeller is difficult to start due to freezing is solved, and the problem that a sealing plug in the related art is difficult to manually pull out due to freezing is solved.
Description
Technical Field
The utility model relates to the technical field of pumps, in particular to a centrifugal pump with an antifreezing function.
Background
Centrifugal pumps operate by using rotation of an impeller to cause centrifugal movement of water. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to do high-speed rotation movement, the water is centrifugally moved and thrown to the outer edge of the impeller, and the water flows into the water pressing pipeline of the water pump through the runner of the volute pump shell. Because the centrifugal pump has poor anti-freezing and thawing effects, the centrifugal pump is easy to freeze when the air is cold, the internal impeller cannot operate after being frozen, and long time is required for thawing.
For this purpose, CN202022419021.0 discloses a centrifugal pump capable of preventing freezing, comprising a casing, a motor, a heating plate and an impeller; an impeller is arranged in the cavity of the shell; the motor drives the impeller to rotate; the motor is arranged on one side of the shell; the water inlet is arranged on the other side of the shell; the water outlet is arranged above the shell; a water outlet is arranged below the shell, and a sealing plug is arranged at the water outlet; the sealing plug is in threaded connection with the shell; a heating plate is arranged on one side of the shell, which is close to the motor; the heat insulation plate is connected to the shell; the heating plate is arranged between the heat insulation plate and the shell.
However, the centrifugal pump described above has been found to have the following problems in the practice of the related art: according to the centrifugal pump, the water outlet is formed in the lower portion of the shell, the sealing plug is filled in the water outlet, the sealing plug is manually pulled out to finish water drainage in a stop state, the centrifugal pump is inconvenient to use, and water around the sealing plug is frozen and hard to manually pull out in extremely cold weather due to the fact that part of water remains in the water outlet.
Disclosure of Invention
The utility model provides a centrifugal pump with an antifreezing function, which solves the problem that a sealing plug in the related art is frozen and is difficult to manually pull out.
The technical scheme of the utility model is as follows: the utility model provides a centrifugal pump with freeze-proof function, includes the pump body and fixes the impeller casing that sets up in pump body one side, the recess has been seted up to the bottom surface of impeller casing, be provided with freeze-proof device in the recess, freeze-proof device includes:
a water draining component fixed at the bottom of the impeller shell;
a support member slidably disposed within the drain member;
and the heating component is fixed at the top of the inner pipe body and is attached to the groove.
Preferably, the drainage component comprises a sleeve, support rods are fixedly connected to two sides of the top of the sleeve, and the top ends of the support rods are fixedly connected with the impeller shell.
Preferably, the support member includes an inner tube slidably disposed inside the drainage member, and the inner tube is elastically connected to the sleeve through an elastic member.
Preferably, the elastic piece comprises a spring, the spring is sleeved on the outer side of the inner pipe body, a first electromagnet and a second electromagnet are respectively fixed at two ends of the spring, the first electromagnet is fixed at the bottom of the heating component, and the second electromagnet is fixed on the inner wall of the sleeve.
Preferably, a water outlet hole communicated with the inner side of the inner pipe body is formed in one side of the bottom of the inner pipe body, a sealing ring sleeved on the outer side of the inner pipe body is fixed on the inner wall of the sleeve, and the water outlet hole is located above the sealing ring.
Preferably, the heating component comprises an arc-shaped heat conducting plate, the arc-shaped heat conducting plate is matched with the groove, the arc-shaped heat conducting plate is fixed at the top end of the inner pipe body, and an electric heating wire is fixedly arranged in the arc-shaped heat conducting plate.
Preferably, a drain hole communicated with the inner side of the impeller shell is formed in the groove.
Preferably, a through hole is formed in the middle of the arc-shaped heat conducting plate, and the through hole enables the water draining hole to be communicated with the inner side of the inner pipe body.
The working principle and the beneficial effects of the utility model are as follows:
1. according to the utility model, when the centrifugal pump stops running, the first electromagnet and the second electromagnet are electrified, so that the elastic force of the spring is overcome, the arc-shaped heat conducting plate is separated from the groove, meanwhile, the inner pipe body extends downwards, the water outlet hole is communicated with the outside, so that accumulated water of the impeller shell can flow to the inner pipe body along the water outlet hole and the through hole and be discharged outwards from the water outlet hole on the inner pipe body, the accumulated water is avoided, the operation is simple, and the water discharge is not required to be opened manually;
2. when water is accumulated at the bottom of the impeller shell to freeze, if the water is required to be timely thawed, the electric heating wire can work to generate heat, and the arc-shaped heat conducting plate transfers the heat to the impeller shell, so that ice cubes at the bottom of the impeller shell are quickly melted, the problem that the impeller is difficult to start due to freezing is solved, and the problem that a sealing plug in the related art is difficult to manually pull out due to freezing is solved.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of a centrifugal pump with anti-freezing function according to the present utility model;
FIG. 2 is a schematic view of an impeller housing according to the present utility model;
FIG. 3 is a schematic structural diagram of an anti-freezing device according to the present utility model;
FIG. 4 is a schematic view of the antifreeze apparatus according to the present utility model at another view;
FIG. 5 is a schematic cross-sectional view of an antifreeze apparatus according to the present utility model;
in the figure: 1. a pump body; 2. an impeller housing; 3. a groove; 31. a drain hole; 4. an anti-freezing device; 41. a heating member; 411. an arc-shaped heat conducting plate; 412. an electric heating wire; 413. a through hole; 42. a water discharge member; 421. a sleeve; 422. a support rod; 423. a seal ring; 43. a support member; 431. an inner tube body; 432. a first electromagnet; 433. a spring; 434. a second electromagnet; 435. and a water outlet hole.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, the present utility model provides a technical solution: the utility model provides a centrifugal pump with freeze-proof function, including the pump body 1 and fixed impeller casing 2 that sets up in pump body 1 one side, recess 3 has been seted up to impeller casing 2's bottom surface, be provided with freeze-proof device 4 in the recess 3, as shown in FIG. 3, freeze-proof device 4 includes drainage part 42, supporting part 43 and heating part 41, wherein drainage part 42 is fixed in impeller casing 2's bottom, drainage part 42 includes sleeve 421, sleeve 421's top both sides fixedly connected with bracing piece 422, the top and the impeller casing 2 fixed connection of bracing piece 422, specifically bracing piece 422 is fixed with the impeller casing 2 bottom surface of recess 3 both sides.
Referring to fig. 4 and 5, the supporting member 43 is slidably disposed in the drainage member 42, the supporting member 43 includes an inner tube 431, the inner tube 431 is slidably disposed inside the drainage member 42, the inner tube 431 is elastically connected with the sleeve 421 through an elastic member, the elastic member includes a spring 433, the spring 433 is sleeved outside the inner tube 431, two ends of the spring 433 are respectively fixed with a first electromagnet 432 and a second electromagnet 434, the first electromagnet 432 is fixed at the bottom of the heating member 41, the second electromagnet 434 is fixed on the inner wall of the sleeve 421, the first electromagnet 432 and the second electromagnet 434 are under the power-off state and are under the elasticity of the spring 433, so that the arc-shaped heat conducting plate 411 is tightly attached in the groove 3, and the first electromagnet 432 and the second electromagnet 434 can overcome the elasticity of the spring 433 under the power-on state, so that the arc-shaped heat conducting plate 411 is separated from the groove 3.
Referring to fig. 5, a water outlet 435 is formed on one side of the bottom of the inner tube 431 and is connected to the inner side of the inner tube 431, a sealing ring 423 sleeved on the outer side of the inner tube 431 is fixed on the inner wall of the sleeve 421, the water outlet 435 is located above the sealing ring 423, the arc-shaped heat conducting plate 411 is tightly attached to the groove 3, the water outlet 435 is sealed by the sealing ring 423, so that the impeller housing 2 is in a closed state, water can be pumped normally, the heating component 41 is fixed on the top of the inner tube 431 and is attached to the groove 3, the heating component 41 comprises the arc-shaped heat conducting plate 411, the arc-shaped heat conducting plate 411 is matched with the groove 3, the arc-shaped heat conducting plate 411 is fixed on the top of the inner tube 431, and an electric heating wire 412 is fixedly arranged in the arc-shaped heat conducting plate 411.
Referring to fig. 3 and 5, a drain hole 31 communicating with the inner side of the impeller housing 2 is formed in the groove 3, a through hole 413 is formed in the middle of the arc-shaped heat conducting plate 411, the through hole 413 enables the drain hole 31 to communicate with the inner side of the inner tube 431, and when the inner tube 431 extends downward, the water outlet 435 communicates with the outside, so that water accumulated in the impeller housing 2 can flow to the inner tube 431 along the drain hole 31 and the through hole 413, and be discharged outwards from the water outlet 435 on the inner tube 431, thereby avoiding water accumulation.
The working principle and the using flow of the utility model are as follows: during normal operation, the first electromagnet 432 and the second electromagnet 434 are in a power-off state, and under the elasticity of the spring 433 and the negative pressure environment generated by the high-speed rotation of the impeller in the impeller shell 2, the arc-shaped heat-conducting plate 411 can be tightly attached to the groove 3, at this time, the water outlet 435 is positioned above the sealing ring 423, the arc-shaped heat-conducting plate 411 is tightly attached to the groove 3, and the water outlet 435 is sealed by the sealing ring 423, so that the impeller shell 2 is in a closed state;
when the centrifugal pump stops running, the first electromagnet 432 and the second electromagnet 434 can be electrified so as to overcome the elasticity of the spring 433, so that the arc-shaped heat conducting plate 411 is separated from the groove 3, meanwhile, the inner pipe 431 extends downwards, the water outlet 435 is communicated with the outside, the accumulated water of the impeller shell 2 can flow to the inner pipe 431 along the water outlet 31 and the through hole 413, and is discharged outwards from the water outlet 435 on the inner pipe 431, the accumulated water is further avoided, and the first electromagnet 432 and the second electromagnet 434 are powered off after being discharged, so that the initial state is restored;
when water is accumulated at the bottom of the impeller shell 2 to freeze, if the water is required to be timely thawed, the electric heating wire 412 can work to generate heat, and the arc-shaped heat conducting plate 411 transfers the heat to the impeller shell 2, so that ice cubes at the bottom of the impeller shell 2 are quickly melted, and the problem that the impeller is difficult to start due to freezing is avoided.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. The utility model provides a centrifugal pump with freeze-proof function, includes pump body (1) and fixed impeller casing (2) that set up in pump body (1) one side, its characterized in that, recess (3) have been seted up to the bottom surface of impeller casing (2), be provided with freeze-proof device (4) in recess (3), freeze-proof device (4) include:
a water discharge member (42) fixed to the bottom of the impeller housing (2);
a support member (43) slidably disposed within the drainage member (42);
and the heating component (41) is fixed on the top of the inner pipe body (431) and is attached to the groove (3).
2. The centrifugal pump with the antifreezing function according to claim 1, wherein the drainage component (42) comprises a sleeve (421), support rods (422) are fixedly connected to two sides of the top of the sleeve (421), and the top ends of the support rods (422) are fixedly connected with the impeller shell (2).
3. A centrifugal pump with freeze protection according to claim 2, characterized in that the support member (43) comprises an inner tube body (431), the inner tube body (431) being slidably arranged inside the drain member (42), the inner tube body (431) being elastically connected to the sleeve (421) by means of an elastic member.
4. A centrifugal pump with anti-freezing function according to claim 3, wherein the elastic member comprises a spring (433), the spring (433) is sleeved outside the inner tube body (431), a first electromagnet (432) and a second electromagnet (434) are respectively fixed at two ends of the spring (433), the first electromagnet (432) is fixed at the bottom of the heating component (41), and the second electromagnet (434) is fixed on the inner wall of the sleeve (421).
5. The centrifugal pump with the antifreezing function according to claim 4, wherein a water outlet hole (435) communicated with the inner side of the inner pipe body (431) is formed in one side of the bottom of the inner pipe body (431), a sealing ring (423) sleeved on the outer side of the inner pipe body (431) is fixed on the inner wall of the sleeve (421), and the water outlet hole (435) is located above the sealing ring (423).
6. A centrifugal pump with freeze protection according to claim 3, characterized in that the heating element (41) comprises an arc-shaped heat conducting plate (411), the arc-shaped heat conducting plate (411) is adapted to the groove (3), the arc-shaped heat conducting plate (411) is fixed at the top end of the inner tube body (431), and an electric heating wire (412) is fixedly arranged inside the arc-shaped heat conducting plate (411).
7. The centrifugal pump with the antifreezing function according to claim 6, wherein the groove (3) is internally provided with a drain hole (31) communicated with the inner side of the impeller shell (2).
8. The centrifugal pump with the antifreezing function according to claim 7, wherein a through hole (413) is formed in the middle of the arc-shaped heat conducting plate (411), and the through hole (413) enables the water drain hole (31) to be communicated with the inner side of the inner pipe body (431).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320173527.9U CN219605646U (en) | 2023-02-10 | 2023-02-10 | Centrifugal pump with freeze-proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320173527.9U CN219605646U (en) | 2023-02-10 | 2023-02-10 | Centrifugal pump with freeze-proof function |
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| Publication Number | Publication Date |
|---|---|
| CN219605646U true CN219605646U (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320173527.9U Active CN219605646U (en) | 2023-02-10 | 2023-02-10 | Centrifugal pump with freeze-proof function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685229A (en) * | 2024-01-31 | 2024-03-12 | 法乔拉蒂流体设备(无锡)有限公司 | Liquid collecting and heating split pump |
-
2023
- 2023-02-10 CN CN202320173527.9U patent/CN219605646U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685229A (en) * | 2024-01-31 | 2024-03-12 | 法乔拉蒂流体设备(无锡)有限公司 | Liquid collecting and heating split pump |
| CN117685229B (en) * | 2024-01-31 | 2024-04-05 | 法乔拉蒂流体设备(无锡)有限公司 | Liquid collecting and heating split pump |
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