CN210118259U - Gas jet water diversion system of centrifugal pump - Google Patents
Gas jet water diversion system of centrifugal pump Download PDFInfo
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- CN210118259U CN210118259U CN201920592073.2U CN201920592073U CN210118259U CN 210118259 U CN210118259 U CN 210118259U CN 201920592073 U CN201920592073 U CN 201920592073U CN 210118259 U CN210118259 U CN 210118259U
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- centrifugal pump
- pump
- water level
- switch valve
- gas
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 43
- 238000002347 injection Methods 0.000 claims abstract description 25
- 239000007924 injection Substances 0.000 claims abstract description 25
- 230000037452 priming Effects 0.000 claims 1
- 239000000243 solution Substances 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model discloses a centrifugal pump gas injection drainage system, including jet pump and the air supply equipment who is used for providing the pressure gas, air supply equipment through an intake pipe with the inlet end intercommunication of jet pump, be equipped with first ooff valve and exhaust tube in the intake pipe, first ooff valve is located air supply equipment with between the exhaust tube, the exhaust tube is through the pump chamber intercommunication of a second ooff valve and centrifugal pump. The utility model has the advantages of simple and reliable structure, low engineering cost and the like.
Description
Technical Field
The utility model relates to a centrifugal pump especially relates to a centrifugal pump gas injection drainage system.
Background
Traditional diversion mode mainly has vacuum pump diversion and hydraulic jet pump diversion two kinds, and vacuum pump diversion needs to increase one set of vacuum equipment, and hydraulic jet pump diversion needs one set of auxiliary water pump water supply system, and two kinds of modes all have the defect that the engineering is complicated, the expense is high, and these two kinds of modes all need the manual work to operate, are unfavorable for realizing automation, intelligent control.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a simple structure, reliable, the centrifugal pump gas jet drainage system that engineering cost is low.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a centrifugal pump gas injection drainage system, includes jet pump and is used for providing the gaseous air supply equipment of pressure, air supply equipment through an intake pipe with the inlet end intercommunication of jet pump, be equipped with first ooff valve and exhaust tube in the intake pipe, first ooff valve is located air supply equipment with between the exhaust tube, the exhaust tube is through the pump chamber intercommunication of a second ooff valve with the centrifugal pump.
As a further improvement of the above technical solution: the first switch valve is an electromagnetic valve, and the second switch valve is a pneumatic valve.
As a further improvement of the above technical solution: the centrifugal pump gas injection diversion system further comprises a control cabinet and a water level meter for detecting the water level in the pump cavity of the centrifugal pump, the water level meter is connected with the input end of the control cabinet, and the gas source equipment, the motor of the centrifugal pump and the first switch valve are all connected with the output end of the control cabinet.
As a further improvement of the above technical solution: the centrifugal pump gas injection water diversion system also comprises a pressure sensor for detecting the pressure at the outlet of the pump cavity of the centrifugal pump, and the pressure sensor is connected with the input end of the control cabinet.
As a further improvement of the above technical solution: the water level gauge is a float water level gauge.
Compared with the prior art, the utility model has the advantages of: the utility model discloses a centrifugal pump gas jet diversion system, adopt pressure gas jet diversion, in operation, provide pressure gas by air supply equipment, first ooff valve and second ooff valve are opened, pressure gas spouts through the nozzle of jet pump at a high speed as the working fluid of jet pump, thereby form the negative pressure around the nozzle, utilize the negative pressure to take out gas in the pump chamber of centrifugal pump and the gas in the exhaust tube, gas taken out is spouted by the jet pump after mixing with pressure gas, along with the extension of suction process, gas in the pump chamber and the gas in the exhaust tube are taken out completely, pond water gets into in the pump chamber of centrifugal pump along the suction tube under the atmospheric pressure effect, close first ooff valve and second ooff valve after accomplishing the diversion, prevent to be returned to in the pump chamber of centrifugal pump by the pumping body; the water diversion system is simple and reliable in structure, a vacuum device and an auxiliary water pump water supply system are not required to be arranged, and engineering cost is greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of the centrifugal pump gas jet diversion system of the present invention.
The reference numerals in the figures denote: 1. an injection pump; 2. a gas source device; 3. an air inlet pipe; 31. a first on-off valve; 32. an air exhaust pipe; 33. a second on-off valve; 4. a centrifugal pump; 41. a motor; 42. a suction tube; 43. a discharge pipe; 5. a control cabinet; 6. a water level gauge.
Detailed Description
The invention is described in further detail below with reference to the drawings and specific examples.
Fig. 1 shows an embodiment of the centrifugal pump gas injection water diversion system of the present invention, the centrifugal pump gas injection water diversion system of this embodiment, including jet pump 1 and air source equipment 2 for providing pressure gas, air source equipment 2 is through the inlet end intercommunication of an intake pipe 3 with jet pump 1, is equipped with first ooff valve 31 and exhaust tube 32 on the intake pipe 3, and first ooff valve 31 is located between air source equipment 2 and exhaust tube 32, and exhaust tube 32 is through the pump chamber intercommunication of a second ooff valve 33 with centrifugal pump 4.
The centrifugal pump gas injection water diversion system adopts pressure gas injection water diversion, when the centrifugal pump gas injection water diversion system works, pressure gas is provided by a gas source device 2, a first switch valve 31 and a second switch valve 33 are opened, the pressure gas serving as working fluid of an injection pump 1 is sprayed out at high speed through a nozzle of the injection pump 1, negative pressure is formed around the nozzle, gas in a pump cavity of a centrifugal pump 4 and gas in an exhaust pipe 32 are pumped out by utilizing the negative pressure, the pumped gas and the pressure gas are mixed and then sprayed out by the injection pump 1, along with the extension of a pumping process, the gas in the pump cavity and the gas in the exhaust pipe 32 are pumped out, pool water enters the pump cavity of the centrifugal pump 4 along an intake pipe 42 under the action of atmospheric pressure, after the water diversion is completed, the first switch valve 31 and the second switch valve 33 are closed, and the pumped gas is prevented from returning to the pump cavity of the centrifugal pump 4; the water diversion system is simple and reliable in structure, a vacuum device and an auxiliary water pump water supply system are not required to be arranged, and engineering cost is greatly reduced.
Further, in the present embodiment, the first switching valve 31 is an electromagnetic valve, and the second switching valve 33 is an air-operated valve. The first switch valve 31 adopts an electromagnetic valve, so that automatic and intelligent control is facilitated; the second switch valve 33 adopts a pneumatic valve, so that the control structure of the gas injection water diversion system of the centrifugal pump is simplified, and the synchronous opening and closing of the first switch valve 31 and the second switch valve 33 are easy to realize. Specifically, the method comprises the following steps: when the pneumatic valve works, the first switch valve 31 is opened, the gas source equipment 2 provides pressure gas, one part of the pressure gas is used as working fluid of the injection pump 1, enters the injection pump 1 through the gas inlet pipe 3 and is sprayed out at a high speed through the nozzle, so that negative pressure is formed around the nozzle, and the other part of the pressure gas enters the pneumatic valve through the exhaust pipe 32 to open the pneumatic valve; after the water diversion is completed, when the electromagnetic valve is closed, the pneumatic valve is closed at the same time.
Furthermore, in this embodiment, the gas injection water diversion system of the centrifugal pump further includes a control cabinet 5 and a water level meter 6 for detecting the water level in the pump chamber of the centrifugal pump 4, the water level meter 6 is connected to the input end of the control cabinet 5, and the gas source device 2, the motor 41 of the centrifugal pump 4 and the first switch valve 31 are all connected to the output end of the control cabinet 5. When the water level in the pump cavity of the centrifugal pump 4 rises to the water level gauge 6, the water level gauge 6 is triggered to generate a liquid level signal, the liquid level signal is transmitted to the control cabinet 5, the control cabinet 5 outputs a signal to switch on the power supply of the motor 41 of the centrifugal pump 4, the centrifugal pump 4 enters a running state, meanwhile, the air source equipment 2 stops supplying air, the first switch valve 31 and the second switch valve 33 are closed, automatic and intelligent control is achieved, and manual operation is reduced. It should be noted that the control cabinet 5 and the water level gauge 6 can realize corresponding functions by means of their hardware functions without the need of improvement of software functions. For example, a commercially available float water gauge or the like can be used.
Further, in this embodiment, the centrifugal pump air jet diversion system further comprises a pressure sensor (not shown in the figure, commercially available) for detecting the pressure at the pump chamber discharge port of the centrifugal pump 4, and the pressure sensor is connected to the input end of the control cabinet 5. When the outlet pressure of the centrifugal pump 4 cannot reach the preset pressure value, the control cabinet 5 immediately controls to turn off the power supplies of the motor 41, the air source equipment 2 and the like, and manual inspection and fault removal are needed here. When the outlet pressure of the centrifugal pump 4 is lower than a preset pressure value, the control cabinet 5 controls to turn off the power supply of the motor 41, the air source equipment 2 is started to provide pressure air, the first switch valve 31 is opened, the air suction and water diversion working process is started again until the outlet pressure of the centrifugal pump 4 reaches a preset value, then the air source equipment 2 stops supplying air, and the first switch valve 31 is closed.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (5)
1. A centrifugal pump gas injection drainage system which is characterized in that: the air source device comprises an injection pump (1) and an air source device (2) used for providing pressure gas, wherein the air source device (2) is communicated with the air inlet end of the injection pump (1) through an air inlet pipe (3), a first switch valve (31) and an air exhaust pipe (32) are arranged on the air inlet pipe (3), the first switch valve (31) is located between the air source device (2) and the air exhaust pipe (32), and the air exhaust pipe (32) is communicated with a pump cavity of a centrifugal pump (4) through a second switch valve (33).
2. A centrifugal pump gas injection diversion system as claimed in claim 1 wherein: the first switch valve (31) is an electromagnetic valve, and the second switch valve (33) is an air-operated valve.
3. A centrifugal pump gas injection diversion system as claimed in claim 2 wherein: the water level meter is characterized by further comprising a control cabinet (5) and a water level meter (6) used for detecting the water level in a pump cavity of the centrifugal pump (4), wherein the water level meter (6) is connected with the input end of the control cabinet (5), and the air source equipment (2), the motor (41) of the centrifugal pump (4) and the first switch valve (31) are connected with the output end of the control cabinet (5).
4. A centrifugal pump gas injection diversion system as claimed in claim 3 wherein: the centrifugal pump is characterized by further comprising a pressure sensor for detecting the pressure at the outlet of the pump cavity of the centrifugal pump (4), wherein the pressure sensor is connected with the input end of the control cabinet (5).
5. A centrifugal pump gas injection priming system according to claim 3 or 4, characterized in that: the water level meter (6) is a float water level meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920592073.2U CN210118259U (en) | 2019-04-26 | 2019-04-26 | Gas jet water diversion system of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920592073.2U CN210118259U (en) | 2019-04-26 | 2019-04-26 | Gas jet water diversion system of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210118259U true CN210118259U (en) | 2020-02-28 |
Family
ID=69613294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920592073.2U Active CN210118259U (en) | 2019-04-26 | 2019-04-26 | Gas jet water diversion system of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210118259U (en) |
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2019
- 2019-04-26 CN CN201920592073.2U patent/CN210118259U/en active Active
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