CN220748625U - Pump cover with heat exchange function for sewage pump - Google Patents
Pump cover with heat exchange function for sewage pump Download PDFInfo
- Publication number
- CN220748625U CN220748625U CN202322484867.6U CN202322484867U CN220748625U CN 220748625 U CN220748625 U CN 220748625U CN 202322484867 U CN202322484867 U CN 202322484867U CN 220748625 U CN220748625 U CN 220748625U
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- CN
- China
- Prior art keywords
- pump
- heat exchange
- pump cover
- cover
- cover body
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- 239000010865 sewage Substances 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000002826 coolant Substances 0.000 claims description 4
- 239000000110 cooling liquid Substances 0.000 abstract description 25
- 239000010802 sludge Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a pump cover with a heat exchange function for a sewage pump, which comprises a pump cover body, wherein the pump cover body is provided with a central through hole, two cover surfaces of the pump cover body are respectively provided with a plurality of rib plates, wherein the rib plates on one cover surface of the pump cover body facing the pump body form heat exchange with liquid in the pump body, and the rib plates on the other cover surface form heat exchange with cooling liquid for cooling a motor. The utility model increases the contact area with the cooling liquid and the liquid in the pump body, and has stronger heat exchange capability, thereby ensuring that the temperature rise of the motor is not too high and further protecting the motor.
Description
Technical Field
The utility model relates to the field of pump covers, in particular to a pump cover with a heat exchange function for a sewage pump.
Background
The submersible sewage pump is generally installed at home and abroad in a submersible mode, the motor is immersed in medium water, heat generated by the motor winding is exchanged with the medium through the shell, and the temperature of the motor is not excessively high. However, in some occasions, customers require the submersible pump to run at an ultra-low liquid level, even in some occasions, the submersible sewage pump is required to be installed in a dry mode, and the submersible sewage pump has a dry-submersible dual-purpose function, so that the motor can be completely exposed to the air, and the motor can not be fully cooled, so that the motor is overheated or even burnt. Therefore, in this occasion, the submersible sewage pump is generally designed into a self-cooling circulation structure, namely, two sleeves are additionally arranged on the motor, cooling liquid is filled between the two sleeves, the cooling liquid flows between the two sleeves through the auxiliary impeller, heat generated by the motor is conducted to the cooling liquid, and heat carried by the cooling liquid is subjected to heat exchange with external air through the sleeve on the outer layer. In the submersible sewage pump with self-cooling circulation, heat of the motor can be taken away through heat exchange between cooling liquid and external air of the outer sleeve, but the heat dissipation effect is still poor only through heat exchange with the external air.
Disclosure of Invention
The utility model provides a pump cover with a heat exchange function for a sewage pump, which aims to solve the problem that the existing submersible sewage pump with self-cooling circulation only depends on heat exchange with external air to dissipate heat and has poor heat dissipation effect.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a pump cover with heat exchange function for dredge pump, including closing the pump cover body of installing on the pump body, pump cover body has the center through-hole and supplies the pump shaft to penetrate in the pump body and be connected with the impeller, its characterized in that, two covers of pump cover body are equipped with multichannel gusset respectively, and wherein the gusset on the one cover of pump cover body orientation pump body forms heat exchange with the liquid in the pump body, and the gusset on the other cover of pump cover body forms heat exchange with the coolant liquid that is used for cooling motor, realizes the heat exchange of coolant liquid and the liquid in the pump body through pump cover body and gusset from this.
Further, threads are formed on the inner wall of the central through hole of the pump cover body in a whole or in part.
Further, the multiple rib plates on each cover surface of the pump cover body are distributed in spoke shapes respectively.
Further, one surface of the pump cover body, which faces the pump body, is provided with a spigot, and spigot matching is formed between the spigot of the pump cover body and the spigot of the impeller in the pump body.
The utility model is arranged on the pump body of the submersible sewage pump with self-cooling circulation, when the auxiliary impeller of the pump drives the cooling liquid to flow, the cooling liquid exchanges heat with the motor to take away the heat generated by the motor, when the cooling liquid flows to the pump cover, a large number of rib plates on one cover surface of the pump cover exchanges heat with the cooling liquid, and a large number of rib plates on the cover surface of the pump cover, which faces the pump body, exchange heat with flowing liquid in the pump body, so that the liquid flowing under the driving of the impeller in the pump body can be utilized to take away the heat generated by the motor.
And moreover, the pump cover is matched with the impeller in the pump body directly through the spigot, so that a large amount of sludge is prevented from entering the central through hole of the pump cover. Meanwhile, all or part of the inner wall of the central through hole of the pump cover is designed with threads to form a spiral cavity, even if a small amount of sludge enters the central through hole of the pump cover, the spiral cavity also has the capacity of discharging the small amount of sludge to prevent the accumulation of the sludge from affecting the heat exchange effect of the pump cover, so that the pump can run with high reliability under the condition of ultralow liquid level or dry installation.
The utility model has the advantages that: the two cover surfaces of the pump cover are provided with a large number of rib plates, so that the contact area between the pump cover and the cooling liquid and the liquid in the pump body is increased, the pump cover has stronger heat exchange capacity, the temperature of the cooling liquid medium is not too high, the temperature rise of the motor is not too high, the motor is further protected, and the submersible sewage pump can reliably operate under the ultra-low liquid level or dry type installation environment.
Drawings
Fig. 1 is a front cross-sectional view of a structure according to an embodiment of the present utility model.
Fig. 2 is a schematic view of a gusset facing the cap of fig. 1B.
Fig. 3 is a schematic view of a gusset facing the cap of fig. 1C.
Fig. 4 is a front cross-sectional view of the structure of an embodiment of the present utility model installed in a pump.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
As shown in fig. 1, this embodiment discloses a pump cover with heat exchange function for a sewage pump, which comprises a pump cover body 5, wherein the pump cover body 5 is integrally in a round cover shape, and the edge of the upper side cover surface of the pump cover body 5 extends upwards to form a ring edge. The central portion of the pump cap body 5 is upwardly arched to form a tapered portion, and the tapered portion has therein a central through hole 12 penetrating up and down through the pump cap body 5. The hole inside shape of the central through hole 12 is also tapered, and the inner wall of the tapered central through hole 12 is wholly or partially formed with the screw thread 11, so that the portion of the central through hole 12 having the screw thread 11 forms a spiral cavity. The lower side cover surface of the pump cover body 5 is provided with a spigot 10, and the spigot 10 surrounds the outer side of the lower end hole of the central through hole 12.
As shown in fig. 2 and 3, the upper side cover surface of the pump cover body 5 is provided with a plurality of upper side rib plates 8, the lower side cover surface of the pump cover body 5 is provided with a plurality of lower side rib plates 9, wherein the plurality of upper side rib plates 8 are distributed around the conical part in a spoke shape, and the plurality of lower side rib plates 9 are distributed outside the lower end orifice of the central through hole 12 in a spoke shape.
As shown in fig. 4, the pump cover body 5 of the present embodiment is mounted on the pump body 7 of the sewage pump. The pump body 7 of the sewage pump is fixedly provided with a motor shell 1, a motor is arranged in the motor shell 1, an output shaft of the motor is vertically downward and coaxially fixedly connected with a pump shaft, the pump shaft downwards passes through a central through hole 12 of the pump cover body 5 and stretches into the pump body 7, and an impeller 6 in the pump body 7 is coaxially fixed at the lower end of the pump shaft. The motor shell 1 is sequentially sleeved with an inner sleeve 2 and an outer sleeve 3 from inside to outside, the pump cover body 5 seals the lower end of the outer sleeve 3 while sealing the pump body 7, an auxiliary impeller 4 is arranged above the pump cover body 5, and the auxiliary impeller 4 is coaxially fixed on the pump shaft.
The lower side cover surface of the pump cover body 5 and the lower side rib plate 9 on the lower side cover surface face into the pump body 7, the upper side cover surface of the pump cover body 5 and the upper side rib plate 8 on the upper side cover surface face into the outer sleeve 3, and a spigot fit is formed between a spigot 10 of the lower side cover surface of the pump cover body 5 and a spigot on the impeller 6 in the pump body 7.
The cooling liquid is filled in the cavity formed between the inner sleeve 2 and the outer sleeve 3, when the motor runs, the auxiliary impeller 4 does work to drive the cooling liquid to pass through the outer surface of the motor shell 1 and the inner surface of the inner sleeve 2, at the moment, a large amount of heat is generated by the motor running, the cooling liquid is conducted to the cooling liquid through the motor shell 1, the temperature of the cooling liquid rises, the cooling liquid bypasses the upper part of the inner sleeve 2 along with the continuous upward flow of the auxiliary impeller 4 doing work, and flows to the outer surface of the inner sleeve 2 and the inner surface of the outer sleeve 3, and at the moment, a small part of heat of the cooling liquid can be conducted and radiated through the space between the outer sleeve 3 and the air.
Along with the cooling liquid continuing to flow to the pump cover body 5, a large number of upper rib plates 8 of the upper cover surface of the pump cover body 5 are fully contacted with the cooling liquid, a large number of lower rib plates 9 of the lower cover surface of the pump cover are fully contacted with the medium water conveyed by the impeller 6 in the pump body 7, the temperature of the conveyed medium water is relatively low, and a large amount of heat carried by the cooling liquid is subjected to heat exchange to the medium water in the pump body 7 through the pump cover and the rib plates thereof. And the medium water is delivered out through the impeller 6 in the pump body 7. The temperature of the cooling liquid is reduced and returns to the inlet of the auxiliary impeller 4, so that the cooling liquid is circulated continuously, and heat is exchanged to the medium water through the pump cover body 5 continuously and conveyed out.
The spigot 10 of the lower side cover surface of the pump cover body 5 and the spigot of the impeller 6 form a small gap, so that a large amount of sludge or sundries in medium water are prevented from entering the spiral cavity of the pump cover body 5, and the spiral cavity can rotate a small amount of sludge out through the spiral by the screw thread structure, so that the heat exchange capacity of the place can be effectively prevented from being influenced by sludge accumulation. Therefore, the heat exchange capacity of the pump cover is fully utilized, so that the heat of the motor is quickly exchanged when the pump is operated, and the pump can be operated with high reliability.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, and the examples described herein are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. The individual technical features described in the above-described embodiments may be combined in any suitable manner without contradiction, and such combination should also be regarded as the disclosure of the present disclosure as long as it does not deviate from the idea of the present utility model. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.
The present utility model is not limited to the specific details of the above embodiments, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the protection scope of the present utility model without departing from the scope of the technical concept of the present utility model, and the technical content of the present utility model is fully described in the claims.
Claims (4)
1. The utility model provides a pump cover with heat exchange function for dredge pump, including closing the pump cover body of installing on the pump body, pump cover body has the center through-hole and supplies the pump shaft to penetrate in the pump body and be connected with the impeller, its characterized in that, two covers of pump cover body are equipped with multichannel gusset respectively, and wherein the gusset on the one cover of pump cover body orientation pump body forms heat exchange with the liquid in the pump body, and the gusset on the other cover of pump cover body forms heat exchange with the coolant liquid that is used for cooling motor, realizes the heat exchange of coolant liquid and the liquid in the pump body through pump cover body and gusset from this.
2. A pump cover with heat exchange function for a sewage pump according to claim 1, wherein the inner wall of the central through hole of the pump cover body is wholly or partially formed with screw threads.
3. The pump cover with heat exchange function for a sewage pump according to claim 1, wherein the plurality of rib plates on each cover surface of the pump cover body are distributed in a spoke shape.
4. The pump cover with the heat exchange function for the sewage pump according to claim 1, wherein a spigot is arranged on one surface of the pump cover body facing the pump body, and the spigot of the pump cover body is matched with an upper spigot of an impeller in the pump body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322484867.6U CN220748625U (en) | 2023-09-13 | 2023-09-13 | Pump cover with heat exchange function for sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322484867.6U CN220748625U (en) | 2023-09-13 | 2023-09-13 | Pump cover with heat exchange function for sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220748625U true CN220748625U (en) | 2024-04-09 |
Family
ID=90559682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322484867.6U Active CN220748625U (en) | 2023-09-13 | 2023-09-13 | Pump cover with heat exchange function for sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220748625U (en) |
-
2023
- 2023-09-13 CN CN202322484867.6U patent/CN220748625U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |