CN2861562Y - Negative pressure water diversion device for eccentric water pump - Google Patents
Negative pressure water diversion device for eccentric water pump Download PDFInfo
- Publication number
- CN2861562Y CN2861562Y CN 200520125061 CN200520125061U CN2861562Y CN 2861562 Y CN2861562 Y CN 2861562Y CN 200520125061 CN200520125061 CN 200520125061 CN 200520125061 U CN200520125061 U CN 200520125061U CN 2861562 Y CN2861562 Y CN 2861562Y
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- water
- negative pressure
- pump
- water pump
- diversion
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- Expired - Fee Related
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- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to centrifugal water pump negative pressure water directing device. A negative pressure tank, equipped with two gate valves on the top, is connected in series between the pump and an inlet port. The two valves, of which one is for water injection while the other is for exhaust, are open when filling suction water at initial pumping, and after water injection the two valves are both closed. Due to the vacuum theory, the suction water in the water pump inlet pipe produces negative pressure when flowing into the pressure tank and the water is stopped from flowing. The device is characterized in that no matter how the pump stops; the suction water will not leak when restarting the pump, if the suction water has filled before the initial start. And pumping is available as long as the pump is started, thus time and labor saving and easy to realizing automatic control.
Description
Technical field: the utility model relates to the Centrifugal water pump water plug, especially a kind of negative pressure water diversion apparatus of centrifugal water pump.
Background technique: general centrifugal water pump, must bottom valve be set in the water inlet of water pump, water must be filled with before the start, discharge bottom valve to the air between the pump housing, can draw water.Owing to particles such as often containing sand in the water is clamp-oned between valve block and the bad sealing of bottom valve own; add charging pump air inlet phenomenon; water in the intake pipe leaks the backwater source under action of gravity phenomenon appears after water pump is shut down; have to add again diversion when restarting; the effort water wasting is time-consuming, can't realize automatic control simultaneously.
Summary of the invention: will often repeat to add the drawback of water in order to overcome existing centrifugal water pump diversion leakage, the utility model provides a kind of centrifugal water pump negative pressure water diversion apparatus, and above-mentioned drawback is solved.
The technical solution adopted in the utility model is: between water pump and water intake; the negative-pressure cup of contacting; utilize the negative pressure of vacuum principle; diversion in the pump water inlet also can not leaked even without the bottom valve sealing; fill it up with diversion before the first start; no matter how water pump shuts down later on, can not cause diversion to leak when restarting, and starts the machine and can draw water.
The beneficial effects of the utility model are that after the diversion of annotating for the first time, start shooting later need not the diversion of annotating early stage at every turn when drawing water, saved the time, has improved working efficiency, can realize automation control water supply easily.
Description of drawings
Accompanying drawing is a kind of structure principle chart of centrifugal water pump negative pressure water diversion apparatus.
Reaching embodiment in conjunction with the accompanying drawings further specifies as follows:
In the accompanying drawings, 1. motor, 2. centrifugal pump, 3. intake pipe, 4 water sources, 5. negative pressure diversion jar, 6. water filling gate valve, 7. water filling hole, 8. exhaust gate valve, 9. relief opening, 10. water supply line
In the accompanying drawing illustrated embodiment, negative pressure diversion jar (5) is a tank body that is communicated with centrifugal pump (2) and intake pipe (3), the opening of intake pipe (3) places in negative pressure diversion jar (5) body and is higher than the connecting port of tank body and water pump, water filling gate valve 6 is arranged on the top of negative pressure diversion jar (5), be connected with water filling hole (7), exhaust gate valve (8) also is arranged on the top of negative pressure diversion jar (5), is connected with relief opening (9).Before drawing water for the first time, open water filling gate valve (6) filling diversion, and open exhaust gate valve (8) and discharge the interior air of negative pressure diversion jar, close water filling gate valve (6) and exhaust gate valve (8) after filling it up with diversion, can start water pump, current enter water supply line (10) to negative pressure diversion jar (5) to centrifugal pump (2) through intake pipe (3).After shutting down; water in the intake pipe (3) can descend under action of gravity; when the water surface in the negative pressure diversion jar (5) is lower than intake pipe (3) suitable for reading; just there is not water to enter intake pipe from negative pressure diversion jar again; because vacuum action; water in the intake pipe (3) can not continue to descend; to keep this part water in the negative pressure diversion jar (5); when water pump is started shooting again; water pump is taken out the water in the negative pressure diversion jar (5) earlier; form negative pressure because of water reduces in jar, the water in the intake pipe (3) just enters in the jar endlessly, guarantees that sufficient water source raw water service pump draws.
Claims (3)
1. centrifugal water pump negative pressure water diversion apparatus is characterized in that: between water pump and water intake, and the negative-pressure cup of contacting.
2. a kind of centrifugal water pump negative pressure water diversion apparatus according to claim 1 is characterized in that: intake pipe enters negative pressure diversion jar and the top of opening in tank body, is higher than the connecting port of tank body and water pump.
3. a kind of centrifugal water pump negative pressure water diversion apparatus according to claim 1 is characterized in that: above negative pressure diversion jar, be provided with two gate valves to be opened/closed and be used for the water filling exhaust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520125061 CN2861562Y (en) | 2005-11-29 | 2005-11-29 | Negative pressure water diversion device for eccentric water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520125061 CN2861562Y (en) | 2005-11-29 | 2005-11-29 | Negative pressure water diversion device for eccentric water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2861562Y true CN2861562Y (en) | 2007-01-24 |
Family
ID=37659191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520125061 Expired - Fee Related CN2861562Y (en) | 2005-11-29 | 2005-11-29 | Negative pressure water diversion device for eccentric water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2861562Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231875A (en) * | 2013-05-11 | 2013-08-07 | 燕京啤酒(玉林)有限公司 | Front vacuum tank device for horizontal centrifugal pump |
| CN103537125A (en) * | 2013-09-25 | 2014-01-29 | 安徽省绿巨人环境技术有限公司 | Filter type negative pressure tank |
| CN106194761A (en) * | 2016-08-29 | 2016-12-07 | 中国神华能源股份有限公司 | Automatization's drainage system of transfer sump |
| CN106895005A (en) * | 2015-12-19 | 2017-06-27 | 曾舟华 | Without bottom valve centrifugal pump is poured water exhaust apparatus and application method |
| CN108412813A (en) * | 2018-01-19 | 2018-08-17 | 华北水利水电大学 | A kind of without bottom valve centrifugation pump priming exhaust apparatus and its application method |
| CN108869313A (en) * | 2018-06-27 | 2018-11-23 | 邵阳学院 | It is a kind of for centrifugal pump from lead device |
| CN109236673A (en) * | 2018-11-23 | 2019-01-18 | 淮南矿业(集团)有限责任公司 | A kind of automatic water device and operating method |
-
2005
- 2005-11-29 CN CN 200520125061 patent/CN2861562Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231875A (en) * | 2013-05-11 | 2013-08-07 | 燕京啤酒(玉林)有限公司 | Front vacuum tank device for horizontal centrifugal pump |
| CN103537125A (en) * | 2013-09-25 | 2014-01-29 | 安徽省绿巨人环境技术有限公司 | Filter type negative pressure tank |
| CN106895005A (en) * | 2015-12-19 | 2017-06-27 | 曾舟华 | Without bottom valve centrifugal pump is poured water exhaust apparatus and application method |
| CN106194761A (en) * | 2016-08-29 | 2016-12-07 | 中国神华能源股份有限公司 | Automatization's drainage system of transfer sump |
| CN108412813A (en) * | 2018-01-19 | 2018-08-17 | 华北水利水电大学 | A kind of without bottom valve centrifugation pump priming exhaust apparatus and its application method |
| CN108869313A (en) * | 2018-06-27 | 2018-11-23 | 邵阳学院 | It is a kind of for centrifugal pump from lead device |
| CN109236673A (en) * | 2018-11-23 | 2019-01-18 | 淮南矿业(集团)有限责任公司 | A kind of automatic water device and operating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |