CN215719730U - Centrifugal pump vacuum diversion system - Google Patents
Centrifugal pump vacuum diversion system Download PDFInfo
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- CN215719730U CN215719730U CN202121426673.5U CN202121426673U CN215719730U CN 215719730 U CN215719730 U CN 215719730U CN 202121426673 U CN202121426673 U CN 202121426673U CN 215719730 U CN215719730 U CN 215719730U
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- vacuum tank
- centrifugal pump
- vacuum
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Abstract
A centrifugal pump vacuum diversion system comprises a vacuum tank, wherein a water inlet pipe and a water outlet pipe are arranged on the vacuum tank, the water inlet pipe is connected with a suction pipe, the suction pipe extends to a position below the liquid level of a water pool, and the water outlet pipe is connected to a centrifugal pump; the water inlet pipe horizontally penetrates through the side wall of the vacuum tank and then upwards extends to a position close to the inner top surface of the vacuum tank in the vertical direction in the vacuum tank; the connecting position of the water outlet pipe and the vacuum tank is positioned on the side wall of the vacuum tank close to the bottom; the centrifugal pump is provided with a conveying pipe, the top of the vacuum tank is provided with a water injection pipe, and a water replenishing pipe is arranged between the conveying pipe and the water injection pipe. The centrifugal pump adopts the structure, so that the problems in the prior art can be effectively solved, and the purpose of pumping vacuum and priming of the centrifugal pump is realized on the premise of not installing the bottom valve.
Description
Technical Field
The utility model relates to the technical field of centrifugal pump vacuum water diversion, in particular to a centrifugal pump vacuum water diversion system.
Background
The centrifugal pump works on the basis of the continuity of liquid flow, in the suction type water diversion mode, a water suction pipe of a water pump runs under the state of negative pressure, if the water pump is not designed with a self-suction function, before the centrifugal pump is started, the water suction pipe and an impeller of the pump are required to be filled with liquid (water), the common mode is divided into mounting a bottom valve on the water suction pipe for water storage and water diversion for vacuum suction, and for water storage by the bottom valve, when debris such as silt and the like are contained in water, the sealing failure of the bottom valve is easily caused. When the pump is started repeatedly, water cannot be introduced again due to the sealing failure of the bottom valve and water leakage, and the reliability is poor.
Disclosure of Invention
The utility model aims to provide a centrifugal pump vacuum water diversion system, which can effectively solve the problems in the prior art and realize the purpose of pumping vacuum water diversion starting of a centrifugal pump without installing a bottom valve.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a centrifugal pump vacuum diversion system comprises a vacuum tank, wherein a water inlet pipe and a water outlet pipe are arranged on the vacuum tank, the water inlet pipe is connected with a suction pipe, the suction pipe extends to a position below the liquid level of a water pool, and the water outlet pipe is connected to a centrifugal pump;
the water inlet pipe horizontally penetrates through the side wall of the vacuum tank and then extends upwards to a position close to the inner top surface of the vacuum tank in the vertical direction in the vacuum tank;
the connecting position of the water outlet pipe and the vacuum tank is positioned on the side wall of the vacuum tank close to the bottom;
the centrifugal pump is provided with a conveying pipe, the top of the vacuum tank is provided with a water injection pipe, and a water replenishing pipe is arranged between the conveying pipe and the water injection pipe.
In the preferred scheme, the top of the vacuum tank is provided with an exhaust pipe, and the exhaust pipe is provided with a check valve.
In the preferred scheme, the water injection pipe on be equipped with first water injection valve and second water injection valve, the hookup location of moisturizing pipe and water injection pipe is located the water injection pipe between first water injection valve and the second water injection valve.
In a preferable scheme, a water replenishing valve is arranged on the water replenishing pipe.
In the preferred scheme, a liquid level monitoring box is arranged on the side wall of the vacuum tank, the inner cavity of the liquid level monitoring box is communicated with the inner cavity of the vacuum tank, a float switch is arranged on the liquid level monitoring box and connected to a controller, and the controller is connected with a water replenishing valve on a water replenishing pipe.
The centrifugal pump vacuum water diversion system provided by the utility model has the following beneficial effects by adopting the structure:
(1) the arrangement of a bottom valve is omitted, and the pump does not need to be filled before water is led each time;
(2) the full irrigation of the vacuum tank in the water diversion process can be ensured, the stability of the water diversion operation is continuously ensured when the sealing performance is slightly damaged, and the shutdown caused by direct shutdown is avoided;
(3) the automatic water replenishing mode enables the device to be always in a sealing state, and the safety problem can not be caused when sewage and toxic and harmful liquid are conveyed.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: the device comprises a vacuum tank 1, a water inlet pipe 2, a water outlet pipe 3, a suction pipe 4, a centrifugal pump 5, a water injection pipe 6, a first water injection valve 601, a second water injection valve 602, an exhaust pipe 7, a check valve 701, a conveying pipe 8, a water replenishing pipe 9, a liquid level monitoring box 10, a float switch 11, a controller 12, a water replenishing valve 13 and a water pool 14.
Detailed Description
As shown in fig. 1, a centrifugal pump vacuum priming system comprises a vacuum tank 1, wherein a water inlet pipe 2 and a water outlet pipe 3 are arranged on the vacuum tank 1, the water inlet pipe 2 is connected with a suction pipe 4, the suction pipe 4 extends to a position below the liquid level of a water pool 14, and the water outlet pipe 3 is connected to a centrifugal pump 5;
the water inlet pipe 2 horizontally penetrates through the side wall of the vacuum tank 1 and then upwards extends to a position close to the inner top surface of the vacuum tank 1 in the vertical direction in the vacuum tank 1;
the connecting position of the water outlet pipe 3 and the vacuum tank 1 is positioned on the side wall of the vacuum tank 1 close to the bottom;
the centrifugal pump 5 on be equipped with conveyer pipe 8, 1 tops in vacuum tank are equipped with water injection pipe 6, are equipped with moisturizing pipe 9 between conveyer pipe 8 and the water injection pipe 6.
In a preferable scheme, the top of the vacuum tank 1 is provided with an exhaust pipe 7, and the exhaust pipe 7 is provided with a check valve 701.
In a preferred embodiment, the water injection pipe 6 is provided with a first water injection valve 601 and a second water injection valve 602, and the connection position of the water injection pipe 9 and the water injection pipe 6 is located on the water injection pipe 6 between the first water injection valve 601 and the second water injection valve 602.
In a preferable scheme, a water replenishing valve 13 is arranged on the water replenishing pipe 9.
In the preferred scheme, a liquid level monitoring box 10 is arranged on the side wall of the vacuum tank 1, the inner cavity of the liquid level monitoring box 10 is communicated with the inner cavity of the vacuum tank 1, a float switch 11 is arranged on the liquid level monitoring box 10, the float switch 11 is connected to a controller 12, and the controller 12 is connected with a water replenishing valve 13 on a water replenishing pipe 9.
The application provides a centrifugal pump vacuum diversion system, when carrying out the vacuum diversion operation, centrifugal pump 5 is before starting for the first time, water injection pipe 6 through vacuum tank 1 top is to vacuum tank 1 interior water injection, water injection stops after 4 effluences of suction pipe to rivers follow, in-process, gas in the vacuum tank 1 is discharged by blast pipe 7, the water that injects floods centrifugal pump 5 impeller through the connecting tube between vacuum tank 1 and the centrifugal pump 5, start the water pump and extract the water in the vacuum tank 1, the water level decline in the vacuum tank 1, form the vacuum in vacuum tank 1 upper portion cavity and suction pipe 4, water in the pond 14 gets into suction pipe 4 under the atmospheric pressure effect, the air in the suction pipe 4 is taken out by the centrifugal pump with the air-water mixture, get rid of completely up to the air, form continuous rivers.
In the process, the water replenishing pipe 9 is controlled to work through the float switch 11 in the liquid level monitoring box 10, when the liquid level in the vacuum tank 1 descends, the liquid level in the liquid level monitoring box 10 descends together, and when the liquid level descends to the warning liquid level, the float switch 11 is closed and transmits a signal to the controller 12, the controller 12 controls the water replenishing valve 13 on the water replenishing pipe 9 to be opened, in the continuous water conveying process, part of output water enters the vacuum tank 1 through the water replenishing pipe 9, the water replenishing purpose in the vacuum tank 1 is achieved, and the phenomenon of 'air binding' caused by too low liquid level is avoided.
Claims (5)
1. The utility model provides a centrifugal pump vacuum diversion system, includes vacuum tank (1), its characterized in that: the vacuum tank (1) is provided with a water inlet pipe (2) and a water outlet pipe (3), the water inlet pipe (2) is connected with a suction pipe (4), the suction pipe (4) extends to a position below the liquid level of the water pool (14), and the water outlet pipe (3) is connected to the centrifugal pump (5);
the water inlet pipe (2) horizontally penetrates through the side wall of the vacuum tank (1) and then upwards extends to a position close to the inner top surface of the vacuum tank (1) in the vacuum tank (1) along the vertical direction;
the connecting position of the water outlet pipe (3) and the vacuum tank (1) is positioned on the side wall of the vacuum tank (1) close to the bottom;
the centrifugal pump (5) is provided with a conveying pipe (8), the top of the vacuum tank (1) is provided with a water injection pipe (6), and a water replenishing pipe (9) is arranged between the conveying pipe (8) and the water injection pipe (6).
2. The centrifugal pump vacuum priming system of claim 1, wherein: the vacuum tank (1) top be equipped with blast pipe (7), be equipped with check valve (701) on blast pipe (7).
3. The centrifugal pump vacuum priming system of claim 1, wherein: the water injection pipe (6) is provided with a first water injection valve (601) and a second water injection valve (602), and the connecting position of the water injection pipe (9) and the water injection pipe (6) is positioned on the water injection pipe (6) between the first water injection valve (601) and the second water injection valve (602).
4. A centrifugal pump vacuum priming system according to claim 3, wherein: and a water replenishing valve (13) is arranged on the water replenishing pipe (9).
5. The centrifugal pump vacuum priming system of claim 1, wherein: the side wall of the vacuum tank (1) is provided with a liquid level monitoring box (10), the inner cavity of the liquid level monitoring box (10) is communicated with the inner cavity of the vacuum tank (1), the liquid level monitoring box (10) is provided with a floating ball switch (11), the floating ball switch (11) is connected to a controller (12), and the controller (12) is connected with a water replenishing valve (13) on a water replenishing pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121426673.5U CN215719730U (en) | 2021-06-25 | 2021-06-25 | Centrifugal pump vacuum diversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121426673.5U CN215719730U (en) | 2021-06-25 | 2021-06-25 | Centrifugal pump vacuum diversion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215719730U true CN215719730U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121426673.5U Active CN215719730U (en) | 2021-06-25 | 2021-06-25 | Centrifugal pump vacuum diversion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215719730U (en) |
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2021
- 2021-06-25 CN CN202121426673.5U patent/CN215719730U/en active Active
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