CN201574942U - External circulation water-cooling centrifugal pump - Google Patents
External circulation water-cooling centrifugal pump Download PDFInfo
- Publication number
- CN201574942U CN201574942U CN2009202915298U CN200920291529U CN201574942U CN 201574942 U CN201574942 U CN 201574942U CN 2009202915298 U CN2009202915298 U CN 2009202915298U CN 200920291529 U CN200920291529 U CN 200920291529U CN 201574942 U CN201574942 U CN 201574942U
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- cavity
- motor casing
- centrifugal pump
- hole
- water
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Abstract
The utility model relates to an external circulation water-cooling centrifugal pump, which comprises a cavity which is connected with a first external pipe and formed by a motor casing and an outer drum. The cavity includes a left cavity and a right cavity which internally include a lower cavity disposed at the bottom portion and an upper cavity disposed at the top portion. The upper end and the lower end of the motor casing are respectively sealed with the upper cavity and the lower cavity, and the upper portion and the lower portion of the left side and the right side of the motor casing are respectively provided with a hole. The hole at the lower end of the left side of the motor casing is connected with the first external pipe. The hole at the upper end of the left side of the motor casing is connected with a second external pipe. The external circulation water-cooling centrifugal pump has the advantages that since circulatory medium (water) is forced to completely flow through the cavities without stagnant water areas and with fine convection heat transfer, heat dissipated by a bearing can be timely brought away, thereby excellently cooling the bearing.
Description
Technical field
The utility model relates to a kind of centrifugal pump, relates in particular to a kind of water-cooled centrifugal pump structure.
Background technique
The water-cooled centrifugal pump is used for for carrying clear water and physics, chemical property to be similar to the usefulness of the liquid of water, and the medium maximum temperature generally is lower than 60 ℃.Because its running is steady, noise is slight, so be applicable to the usefulness of feedwater such as tall building life, fire-fighting, industrial and mining enterprise.General its range of flow is 3-360m3/h, and range of lift is the 20-240m water column, and the match power scope is 0.75-280kW.
As seen from Figure 1, the flow direction such as the arrow of the medium of water-cooled centrifugal pump of the prior art are indicated, enter water exit end 4 by impeller 3 outlets, enter adjutage 5 backs again and are discharged by pump discharge 2.Wherein some medium since the high pressure effect in first externally connected pipe 6 enters the cavity of being made up of motor casing 7 and urceolus 8, absorb the heat that motor distributes, be discharged to pump inlet 1 place of low pressure area again through second externally connected pipe 9, and reenter impeller, form a circulation thus, thereby reach the purpose of circulating water cooling motor; Because of the existence of water cavity, make the noise of motor reduce greatly simultaneously.But water-cooled centrifugal pump of the prior art also exists 2 deficiencies:
The first, all exist the slough in lower impressions 10 and upper impression 13 places, heat transfer efficiency is low, and making lower bearing 11 and upper bearing (metal) 12 places rotate a large amount of heat of generation can not in time be taken away, thereby causes bearing to be burnt out, and influence is operation normally.
The second, structurally, motor casing 7 is to be connected by second screw 15 with being connected of upper and lower die cavity body; Must disassemble first screw 14 earlier during the dismounting and change bearing, then urceolus 8 be released, disassemble second screw 15 again and just can carry out smoothly, bring great trouble when so just giving maintenance, consumptive material, consuming time causes cost to increase simultaneously.
Summary of the invention
The utility model technical issues that need to address have provided a kind of outer circulation water-cooled centrifugal pump, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: connect cavity first externally connected pipe, that be made up of motor casing and urceolus; Described cavity comprises left cavity and right cavity; Inside at left cavity and right cavity comprises: be placed in the lower impressions of bottom and be placed in the upper impression at top; The top and bottom of described motor casing respectively with the sealing of upper and lower die cavity, respectively open a hole the left side of motor casing and right side upper and lower; The hole and first externally connected pipe of the lower end, left side of motor casing are joined; The hole and second externally connected pipe of the upper end, left side of motor casing are joined.
Compared with prior art, the beneficial effects of the utility model are: because circulatory mediator (water) is to force to flow through fully die cavity, do not exist the slough in the die cavity, convection heat exchange is effective, the heat that can well in time take away bearing and distributed is well cooled off bearing.
Description of drawings
Fig. 1 is a water-cooled centrifugal pump structure schematic representation in the prior art;
Fig. 2 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As seen from Figure 2: the utility model comprises: connect cavity first externally connected pipe 6, that be made up of motor casing 70 and urceolus 8; Described cavity comprises left cavity A and right cavity B; Inside at left cavity A and right cavity B comprises: be placed in the lower impressions 10 of bottom and be placed in the upper impression 13 at top; The top and bottom of described motor casing 70 respectively with the sealing of upper and lower die cavity, respectively open a hole 701 the left side of motor casing 70 and right side upper and lower; The hole 701 of the lower end, left side of motor casing 70 and first externally connected pipe 6 are joined; The hole 701 and second externally connected pipe 9 of the upper end, left side of motor casing 70 are joined;
Above described urceolus 8, settle the screw 140 that to dismantle.Among Fig. 2: water exit end 4, adjutage 5, lower bearing 11, upper bearing (metal) 12 and pump discharge 2.
The utility model with motor casing lengthening and with upper and lower die cavity sealing, respectively open a hole and arranged on left and right sides upper and lower.Flow in the lower impressions 10 through first externally connected pipe 6 because of the pressure effect from the medium (water) that impeller 3 comes out, the orifice flow through its right side goes out again, and flows in the cavity of motor casing 70 and urceolus 8 compositions.Then, go into upper impression 13, go into second externally connected pipe 9 that communicates with pump inlet 1 from the orifice flow in its left side again, and reenter impeller, form a circulation thus, thereby reach the purpose of cooling bearing and motor through the orifice flow on upper impression 13 right sides.Because circulatory mediator (water) is to force to flow through fully die cavity, do not exist the slough in the die cavity, convection heat exchange is effective, and the heat that can well in time take away bearing and distributed is well cooled off bearing.Certainly, if conditions permit can be added fin and add snakelike water-blocking plate in the cavity of motor casing and urceolus composition in die cavity, cooling effect can be better.
The utility model has structurally replaced original connection by first screw and second screw by screw 140, during maintenance, only need disassemble screw, has saved the step of dismantling second screw and extracting urceolus out.Brought very big convenience to maintenance like this, cost is reduced.
Claims (2)
1. outer circulation water-cooled centrifugal pump comprises: connect cavity first externally connected pipe, that be made up of motor casing and urceolus; Described cavity comprises left cavity and right cavity; Inside at left cavity and right cavity comprises: be placed in the lower impressions of bottom and be placed in the upper impression at top; It is characterized in that: the top and bottom of described motor casing respectively with the sealing of upper and lower die cavity, respectively open a hole the left side of motor casing and right side upper and lower; The hole and first externally connected pipe of the lower end, left side of motor casing are joined; The hole and second externally connected pipe of the upper end, left side of motor casing are joined.
2. outer circulation water-cooled centrifugal pump according to claim 1 is characterized in that: settle the screw that can dismantle above described urceolus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202915298U CN201574942U (en) | 2009-12-11 | 2009-12-11 | External circulation water-cooling centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202915298U CN201574942U (en) | 2009-12-11 | 2009-12-11 | External circulation water-cooling centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574942U true CN201574942U (en) | 2010-09-08 |
Family
ID=42694815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202915298U Expired - Fee Related CN201574942U (en) | 2009-12-11 | 2009-12-11 | External circulation water-cooling centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574942U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828968A (en) * | 2011-06-14 | 2012-12-19 | 开利泵业(集团)有限公司 | Energy-saving and low-noise centrifugal pump |
| CN105090051A (en) * | 2015-08-04 | 2015-11-25 | 芜湖环球汽车配件有限公司 | Shielded electric pump |
| CN105673574A (en) * | 2016-03-18 | 2016-06-15 | 池泉 | Low-noise multi-stage centrifugal pump |
-
2009
- 2009-12-11 CN CN2009202915298U patent/CN201574942U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828968A (en) * | 2011-06-14 | 2012-12-19 | 开利泵业(集团)有限公司 | Energy-saving and low-noise centrifugal pump |
| CN105090051A (en) * | 2015-08-04 | 2015-11-25 | 芜湖环球汽车配件有限公司 | Shielded electric pump |
| CN105673574A (en) * | 2016-03-18 | 2016-06-15 | 池泉 | Low-noise multi-stage centrifugal pump |
| CN105673574B (en) * | 2016-03-18 | 2018-06-29 | 池泉 | Low noise centrifugal multistage pump multiple centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20161211 |