CN215949844U - Vacuum-pumping-free water pump - Google Patents
Vacuum-pumping-free water pump Download PDFInfo
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- CN215949844U CN215949844U CN202122364044.0U CN202122364044U CN215949844U CN 215949844 U CN215949844 U CN 215949844U CN 202122364044 U CN202122364044 U CN 202122364044U CN 215949844 U CN215949844 U CN 215949844U
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- pump
- water
- water feeding
- feeding pump
- main drainage
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 107
- 235000020681 well water Nutrition 0.000 claims abstract description 4
- 239000002349 well water Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 description 6
- 239000003245 coal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model provides a start safe, easy and simple to handle, the high vacuum pump that exempts from that uses in colliery of reliability, includes main drainage pump, its characterized in that: the water suction port of the main drainage pump on the water is connected with the submerged water feeding pump with a vertical structure, the water outlet pipe of the water feeding pump is connected with the water suction port of the main drainage pump, the submerged water feeding pump motor is positioned on the upper portion of the water feeding pump body and positioned above the ground of the pump room, and the water feeding pump impeller is positioned on the lower portion of the water feeding pump body and is immersed in well water when in use.
Description
Technical Field
The utility model relates to a vacuumizing-free water pump which is quick to start, simple to operate and high in safety.
Background
The water pump water supply and drainage system is widely applied, closely related to industrial and agricultural production and people's life, and is an electromechanical product which is large in quantity and wide in range and covers the aspects of society. The total installed quantity of water pumps in China is over ten million, and the using quantity of the centrifugal pumps on liquid in a water pump family is more than 90 percent of the total quantity.
At present, centrifugal pumps on liquid (with impellers above the ground of a pump room) generally adopt two starting modes, one is a vacuumizing starting mode, and the second is a starting mode using a submersible pump.
The vacuum pumping is started in two ways:
1. directly vacuumizing the main drainage pump, and then starting the main drainage pump;
2. a horizontal water feeding pump with a vacuum device is added, an impeller of the horizontal water feeding pump is arranged above the ground, before a main drainage pump is started, vacuumizing is needed to be performed, and the liquid level is detected.
These two vacuum-pumping start-up methods have the following disadvantages:
1. before each water pump is started, a vacuum device is required to pump the interior of the pump body into a negative pressure state, the starting time is long, the noise is high, and the operation is complicated.
2. The vacuum device has many components, such as: the system comprises an electric control system, a detection system and a vacuum pump, and has the defects of multiple pipelines, long pipelines and high accident rate due to accidental misoperation.
3. The suction lift of the water pump is about 5 m generally, which can not meet the requirement of large suction lift.
4. The starting time is long, and the requirement of starting the water pump in an emergency state cannot be met.
The starting mode of the submersible pump is simple and convenient, the complexity of the vacuumizing mode is saved, and the submersible pump has obvious defects:
1. in water, motor failure is expected to be a potential hidden danger, the possibility of explosion accidents caused by short circuit of the motor exists, and certain dangerousness exists particularly when the motor is used underground in a coal mine.
2. Although the submersible pump is simple in use mode, in order to prevent accidents, a device for preventing faults needs to be additionally arranged, and fault points are increased.
3. The submersible pump has two mounting modes, one is not fixed, and the other is fixed. The state is unstable when the installation mode is not fixed, the operation parameters of the main drainage pump are influenced, and the pump is easily damaged; the fixed installation mode is stable in running state, but is not easy to install and disassemble.
4. The submersible pump has the possibility of being buried by coal slime, but the submersible pump cannot work when being buried.
5. The submersible pump has extremely high sealing requirements and is not easy to maintain.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides the vacuumizing-free water pump which is safe to start, simple and convenient to operate and high in reliability and is used in a coal mine.
The technical solution of the utility model is as follows: a vacuum-pumping-free water pump comprises a main drainage pump and is characterized in that: the water suction port of the main drainage pump on the water is connected with the submerged water feeding pump with a vertical structure, the water outlet pipe of the water feeding pump is connected with the water suction port of the main drainage pump, the submerged water feeding pump motor is positioned on the upper portion of the water feeding pump body and positioned above the ground of the pump room, and the water feeding pump impeller is positioned on the lower portion of the water feeding pump body and is immersed in well water when in use.
Further, the submerged water feeding pump motor is located at the top of the water feeding pump body, and the water feeding pump impeller is located at the bottom of the water feeding pump body.
Further, a pressure sensor is installed at the outlet of the main drainage pump.
The utility model is suitable for all liquid centrifugal pumps, in particular for underground coal mine drainage, and has the advantages that:
1. the water feeding pump is connected with the water suction port of the main drainage pump, the impeller of the water feeding pump is immersed in water, water is always in the well, the water feeding pump can be directly started, the vacuumizing process is cancelled, the running state can be achieved instantly, and the water feeding pump is very suitable for being used under emergency conditions. The vacuum device is cancelled, the equipment is simplified, the operation is simple, the starting is quick, and the sucking height is not limited by the sucking distance of the main draining pump.
2. After the water feeding pump is adopted, the water suction port of the main drainage pump is always in a positive pressure water supply state when the main drainage pump operates, the possibility of cavitation of the main drainage pump is eliminated, the damage caused by cavitation is avoided, and the drainage performance of the main drainage pump is better improved.
3. Compared with a submersible pump, the submersible pump is safe to start and high in reliability, and the possibility of explosion caused by short circuit and the phenomenon of shutdown caused by burying are avoided; and the operation is stable, the service life is long, the installation, the disassembly and the maintenance are simple, the manufacture is simple, and the maintenance is easy.
4. The pump efficiency is high, has reduced routine maintenance, has prolonged main drainage pump long service life, has saved the charges of electricity.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: the device comprises a filter screen-1, a flared tube-2, a fluid director-3, an impeller-4, an impeller shaft-5, an outer tube-6, a coupler-7, a motor-8, a water outlet pipe-9, a main drainage pump-10, a pressure sensor-11, an alarm-12, a controller-13, a water suction port-1001 and an outlet-1002.
Detailed Description
As shown in the figure, the vacuumizing-free water pump comprises a main drainage pump 10, a water suction port 1001 of the main drainage pump 10, which is located on liquid, is connected with a vertical submerged water feeding pump, a water outlet pipe 9 of the water feeding pump is connected with the water suction port 1001 of the main drainage pump, the water feeding pump comprises a filter screen 1, a horn tube 2, a fluid director 3, an impeller 4, an impeller shaft 5, an outer tube 6, a coupler 7, a motor 8 and a water outlet pipe 9, the submerged water feeding pump motor 8 is located at the top of a water feeding pump body and is located above the ground of a pump room when in use, and the water feeding pump impeller 4 is located at the bottom of the water feeding pump body and is immersed in well water when in use. A pressure sensor 11 is installed at the main drain pump outlet 1002.
When the water pump is installed, the controller 13 is connected with the water feeding pump motor 8 and the main drainage pipe 10 motor, the signal output end of the pressure sensor 11 is connected with the controller 13, and the alarm signal output end of the controller 13 is connected with the alarm 12.
The start-up procedure is as follows:
s1, adopting an underwater water feeding pump, wherein the underwater water feeding pump comprises a filter screen 1, a horn tube 2, a fluid director 3, an impeller 4, an impeller shaft 5, an outer tube 6, a coupler 7, a motor 8 and a water outlet pipe 9, the motor 8 of the water feeding pump is positioned on the ground of a pump room, a water inlet pipe of a main drainage pump is removed, a water suction port 1001 of the main drainage pump is exposed, the water outlet pipe 9 of the water feeding pump is connected with the water suction port of the main drainage pump, and the distance between the water suction port of the main drainage pump 10 and the impeller inlet of the water feeding pump is less than or equal to 10 m; water in the well is filtered by a filter screen 1 of the water feeding pump, then is guided into a pump cavity of the water feeding pump through a horn tube 2 and submerges an impeller, and the water in the pump cavity is supplied to a main drainage pump 10 through a water outlet pipe 9 of the water feeding pump; in the drainage process, the distance between the inlet of the impeller 4 of the water feeding pump and the liquid level is more than or equal to 0.5 m.
S2, the water feeding pump is started firstly through the controller 13, water is supplied to the main drainage pump after the water feeding pump is started, air in the main drainage pump is removed, the main drainage pump is filled with water, and the starting condition of the main drainage pump is achieved;
and S3, starting the main drainage pump to finish drainage.
S4, after the water pump is started, if the valve on the outlet pipeline of the main drainage pump cannot be opened to enable the pressure in the main drainage pump body to rise or the water feeding pump fails and the pressure in the main drainage pump body to reduce, the main drainage pump 10 cannot normally operate, at the moment, the pressure sensor 11 detects an overpressure signal or an underpressure signal, the water feeding pump and the main drainage pump are stopped through the controller 13, and an alarm 12 gives an alarm.
The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides an exempt from evacuation water pump, includes main drainage pump, characterized by: the water suction port of the main drainage pump on the water is connected with a vertical submerged water feeding pump, the water outlet pipe of the water feeding pump is connected with the water suction port of the main drainage pump, the submerged water feeding pump motor is positioned on the upper portion of the water feeding pump body and above the ground of the pump room when in use, and the water feeding pump impeller is positioned on the lower portion of the water feeding pump body and is immersed in well water when in use.
2. The vacuum-pumping-free water pump as claimed in claim 1, wherein: the submerged water feeding pump motor is located at the top of the water feeding pump body, and the water feeding pump impeller is located at the bottom of the water feeding pump body.
3. The vacuum-pumping-free water pump as claimed in claim 1, wherein: and a pressure sensor is arranged at the outlet of the main drainage pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122364044.0U CN215949844U (en) | 2021-09-28 | 2021-09-28 | Vacuum-pumping-free water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122364044.0U CN215949844U (en) | 2021-09-28 | 2021-09-28 | Vacuum-pumping-free water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215949844U true CN215949844U (en) | 2022-03-04 |
Family
ID=80424551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122364044.0U Active CN215949844U (en) | 2021-09-28 | 2021-09-28 | Vacuum-pumping-free water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215949844U (en) |
-
2021
- 2021-09-28 CN CN202122364044.0U patent/CN215949844U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240203 Address after: 121000, No. 10B-38, Fujin Jiayuan, Lingnan Xili, Taihe District, Jinzhou City, Liaoning Province Patentee after: Zhang Hanxi Country or region after: China Address before: 121116 No. 5, Qilihe Industrial Park, Yi County, Jinzhou City, Liaoning Province Patentee before: JINZHOU HEAVY WATER PUMP Co.,Ltd. Country or region before: China |