CN107559211B - Multistage centrifugal pump convenient to change flabellum - Google Patents
Multistage centrifugal pump convenient to change flabellum Download PDFInfo
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- CN107559211B CN107559211B CN201710785214.8A CN201710785214A CN107559211B CN 107559211 B CN107559211 B CN 107559211B CN 201710785214 A CN201710785214 A CN 201710785214A CN 107559211 B CN107559211 B CN 107559211B
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Abstract
The invention discloses a multistage centrifugal pump convenient for replacing fan blades, wherein a first pump wheel is arranged in a first pump cavity, and a second pump wheel is arranged in a second pump cavity; the water inlet pipe is communicated with the inside of the first pump cavity through a first water inlet, and the water inlet pipe is communicated with the inside of the second pump cavity through a second water inlet; the first pump chamber and the second pump chamber both adopt multi-stage pump chambers; the first liquid level sensor is arranged on the inner wall of the first-stage pump cavity of the first pump cavity; the second liquid level sensor is arranged on the inner wall of the first-stage pump cavity of the second pump cavity; the control device is arranged on the outer wall of the whole device and is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the first liquid level sensor and the second liquid level sensor. The multistage centrifugal pump is convenient for replacing the fan blades, and the pipeline conveying can not be interrupted when the pump wheel is replaced by the device.
Description
Technical Field
The invention relates to the technical field of water supply, in particular to a multistage centrifugal pump with blades convenient to replace.
Background
The multistage centrifugal pump integrates more than two centrifugal pumps with the same function, and the fluid channel structure is characterized in that a medium pressure relief opening of a first stage is communicated with an inlet of a second stage, and a medium pressure relief opening of the second stage is communicated with an inlet of a third stage, so that the multistage centrifugal pump is formed by a mechanism connected in series. The significance of the multistage centrifugal pump is to increase the set pressure.
Because the lift of multistage centrifugal pump is very high, so the liquid pressure in the centrifugal pump is very big, and this change maintenance frequency that just leads to multistage centrifugal pump's pump impeller can be than higher, when maintaining multistage centrifugal pump now, need shut down centrifugal pump, change the pump impeller again to lead to the pipeline transportation temporarily to interrupt.
Disclosure of Invention
The invention aims to solve the technical problem that when a multistage centrifugal pump is maintained, the centrifugal pump needs to be stopped and then a pump wheel needs to be replaced, so that pipeline conveying is temporarily interrupted.
The invention is realized by the following technical scheme:
the multistage centrifugal pump convenient for replacing fan blades comprises a first pump cavity, a second pump cavity, a first pump impeller, a second pump impeller, a first water inlet, a second water inlet, a first electromagnetic valve, a second electromagnetic valve, a water inlet pipe, a first water outlet, a second water outlet, a third electromagnetic valve, a fourth electromagnetic valve, a water outlet pipe, a first liquid level sensor, a second liquid level sensor and a control device; the first pump wheel is arranged in the first pump cavity, and the second pump wheel is arranged in the second pump cavity; the water inlet pipe is communicated with the inside of the first pump cavity through a first water inlet, and the water inlet pipe is communicated with the inside of the second pump cavity through a second water inlet; a first electromagnetic valve is arranged on the first water inlet, and a second electromagnetic valve is arranged on the second water inlet; the water outlet pipe is communicated with the inside of the first pump cavity through a first water outlet, and the water outlet pipe is communicated with the inside of the second pump cavity through a second water outlet; a third electromagnetic valve is arranged on the first water outlet, and a fourth electromagnetic valve is arranged on the second water outlet; the first pump chamber and the second pump chamber both adopt multi-stage pump chambers; the first liquid level sensor is arranged on the inner wall of the first-stage pump cavity of the first pump cavity; the second liquid level sensor is arranged on the inner wall of the first-stage pump cavity of the second pump cavity; the control device is arranged on the outer wall of the whole device and is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the first liquid level sensor and the second liquid level sensor.
Among the prior art, because the lift of multistage centrifugal pump is very high, so the liquid pressure in the centrifugal pump is very big, and this change maintenance frequency that just leads to multistage centrifugal pump's pump impeller can be than higher, when maintaining multistage centrifugal pump now, need shut down centrifugal pump, change the pump impeller again to lead to the pipeline transportation to suspend temporarily. When the first pump wheel needs to be replaced, the first electromagnetic valve and the second electromagnetic valve are closed through the control device, the control device displays the state of the first liquid level sensor, when the first liquid level sensor cannot detect liquid, a worker opens the first pump cavity to replace the first pump wheel, and the second pump wheel continuously works, so that the pipeline conveying is not interrupted; similarly, when the second pump wheel is replaced, the third electromagnetic valve and the fourth electromagnetic valve are closed through the control device, the control device displays the state of the second liquid level sensor, when the second liquid level sensor cannot detect liquid, a worker opens the second pump cavity to replace the second pump wheel, and the first pump wheel continuously works, so that the pipeline conveying is not interrupted; the device provided by the invention realizes that the pipeline conveying is not interrupted when the pump wheel is replaced.
Furthermore, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are all stop valves, the inlet of the first electromagnetic valve faces the water inlet pipe, the inlet of the second electromagnetic valve faces the water inlet pipe, the inlet of the third electromagnetic valve faces the water outlet pipe, and the inlet of the fourth electromagnetic valve faces the water outlet pipe.
When the pressure-resistant electromagnetic valve is applied, when the pump wheel is replaced, the pressure of liquid on the other side is transmitted to the electromagnetic valve, and the stop valve is adopted, and the inlet of the stop valve faces to the direction from which the pressure is transmitted, so that when the pressure of the liquid is transmitted to the electromagnetic valve, the valve core of the stop valve is pressed by the pressure of the liquid and is attached to the valve pole, and the liquid cannot leak out of the electromagnetic valve.
Furthermore, the control device comprises a control module, a display module and a key; the control module detects states of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the first liquid level sensor and the second liquid level sensor, converts the states of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the first liquid level sensor and the second liquid level sensor into image signals and sends the image signals to the display module, and the display module displays the image signals; the button controls the opening and closing of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve through the control module.
Further, the first pump chamber and the second pump chamber are made of cast iron.
Furthermore, sealing rings are arranged on the first water inlet, the second water inlet, the first water outlet and the second water outlet.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the multistage centrifugal pump is convenient for replacing the fan blades, and the pipeline conveying can not be interrupted when the pump wheel is replaced by the device.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a block diagram of the system of the present invention.
Reference numbers and corresponding part names in the drawings:
1-a first pump chamber, 2-a second pump chamber, 3-a first pump impeller, 4-a second pump impeller, 5-a first water inlet, 6-a second water inlet, 7-a first electromagnetic valve, 8-a second electromagnetic valve, 9-a water inlet pipe, 10-a first water outlet, 11-a second water outlet, 12-a third electromagnetic valve, 13-a fourth electromagnetic valve, 14-a water outlet pipe, 15-a first liquid level sensor, 16-a second liquid level sensor and 17-a control device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1 and 2, the multistage centrifugal pump convenient for blade replacement of the present invention includes a first pump chamber 1, a second pump chamber 2, a first pump impeller 3, a second pump impeller 4, a first water inlet 5, a second water inlet 6, a first electromagnetic valve 7, a second electromagnetic valve 8, a water inlet pipe 9, a first water outlet 10, a second water outlet 11, a third electromagnetic valve 12, a fourth electromagnetic valve 13, a water outlet pipe 14, a first liquid level sensor 15, a second liquid level sensor 16 and a control device 17; the first pump wheel 3 is arranged in the first pump cavity 1, and the second pump wheel 4 is arranged in the second pump cavity 2; the water inlet pipe 9 is communicated with the inside of the first pump cavity 1 through a first water inlet 5, and the water inlet pipe 9 is communicated with the inside of the second pump cavity 2 through a second water inlet 6; a first electromagnetic valve 7 is arranged on the first water inlet 5, and a second electromagnetic valve 8 is arranged on the second water inlet 6; the water outlet pipe 14 is communicated with the interior of the first pump cavity 1 through a first water outlet 10, and the water outlet pipe 14 is communicated with the interior of the second pump cavity 2 through a second water outlet 11; a third electromagnetic valve 12 is arranged on the first water outlet 10, and a fourth electromagnetic valve 13 is arranged on the second water outlet 11; the first pump chamber 1 and the second pump chamber 2 both adopt multi-stage pump chambers; the first liquid level sensor 15 is arranged on the inner wall of the first-stage pump cavity of the first pump cavity 1; the second liquid level sensor 16 is arranged on the inner wall of the first-stage pump cavity of the second pump cavity 2; the control device 17 is arranged on the outer wall of the whole device, and the control device 17 is electrically connected to the first electromagnetic valve 7, the second electromagnetic valve 8, the third electromagnetic valve 12, the fourth electromagnetic valve 13, the first liquid level sensor 15 and the second liquid level sensor 16. The first solenoid valve 7, the second solenoid valve 8, the third solenoid valve 12 and the fourth solenoid valve 13 all adopt stop valves, and the import of first solenoid valve 7 is towards inlet tube 9, and the import of second solenoid valve 8 is towards inlet tube 9, and the import of third solenoid valve 12 is towards outlet pipe 14, and the import of fourth solenoid valve 13 is towards outlet pipe 14. The control device 17 comprises a control module, a display module and a key; the control module detects states of the first electromagnetic valve 7, the second electromagnetic valve 8, the third electromagnetic valve 12, the fourth electromagnetic valve 13, the first liquid level sensor 15 and the second liquid level sensor 16, converts the states of the first electromagnetic valve 7, the second electromagnetic valve 8, the third electromagnetic valve 12, the fourth electromagnetic valve 13, the first liquid level sensor 15 and the second liquid level sensor 16 into image signals and sends the image signals to the display module, and the display module displays the image signals; the key controls the opening and closing of the first electromagnetic valve 7, the second electromagnetic valve 8, the third electromagnetic valve 12 and the fourth electromagnetic valve 13 through the control module. The first pump chamber 1 and the second pump chamber 2 are made of cast iron. And sealing rings are arranged on the first water inlet 5, the second water inlet 6, the first water outlet 10 and the second water outlet 11.
In the implementation of the embodiment, when the first pump impeller 3 needs to be replaced, the first electromagnetic valve 7 and the second electromagnetic valve 8 are closed through the control device 17, the control device 17 displays the state of the first liquid level sensor 15, when the first liquid level sensor 15 cannot detect liquid, a worker opens the first pump cavity 1 to replace the first pump impeller 3, and the second pump impeller 4 continuously works, so that the pipeline conveying is not interrupted; similarly, when the second pump impeller 4 is replaced, the third electromagnetic valve 12 and the fourth electromagnetic valve 13 are closed through the control device 17, the control device 17 displays the state of the second liquid level sensor 16, when the second liquid level sensor 16 cannot detect liquid, a worker opens the second pump cavity 2 to replace the second pump impeller 4, and the first pump impeller 3 continuously works, so that the pipeline conveying cannot be interrupted; the device provided by the invention realizes that the pipeline conveying is not interrupted when the pump wheel is replaced.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. The multistage centrifugal pump convenient for blade replacement is characterized by comprising a first pump chamber (1), a second pump chamber (2), a first pump wheel (3), a second pump wheel (4), a first water inlet (5), a second water inlet (6), a first electromagnetic valve (7), a second electromagnetic valve (8), a water inlet pipe (9), a first water outlet (10), a second water outlet (11), a third electromagnetic valve (12), a fourth electromagnetic valve (13), a water outlet pipe (14), a first liquid level sensor (15), a second liquid level sensor (16) and a control device (17); the first pump wheel (3) is arranged in the first pump cavity (1), and the second pump wheel (4) is arranged in the second pump cavity (2); the water inlet pipe (9) is communicated with the inside of the first pump cavity (1) through a first water inlet (5), and the water inlet pipe (9) is communicated with the inside of the second pump cavity (2) through a second water inlet (6); a first electromagnetic valve (7) is arranged on the first water inlet (5), and a second electromagnetic valve (8) is arranged on the second water inlet (6); the water outlet pipe (14) is communicated with the inside of the first pump cavity (1) through a first water outlet (10), and the water outlet pipe (14) is communicated with the inside of the second pump cavity (2) through a second water outlet (11); a third electromagnetic valve (12) is arranged on the first water outlet (10), and a fourth electromagnetic valve (13) is arranged on the second water outlet (11); the first pump cavity (1) and the second pump cavity (2) both adopt multi-stage pump cavities; the first liquid level sensor (15) is arranged on the inner wall of the first-stage pump cavity of the first pump cavity (1); the second liquid level sensor (16) is arranged on the inner wall of the first-stage pump cavity of the second pump cavity (2); the control device (17) is arranged on the outer wall of the whole device, the control device (17) is electrically connected with the first electromagnetic valve (7), the second electromagnetic valve (8), the third electromagnetic valve (12), the fourth electromagnetic valve (13), the first liquid level sensor (15) and the second liquid level sensor (16), the first pump cavity (1) and the second pump cavity (2) are made of cast iron materials, and sealing rings are arranged on the first water inlet (5), the second water inlet (6), the first water outlet (10) and the second water outlet (11).
2. The multistage centrifugal pump convenient for replacing fan blades of claim 1, wherein the first solenoid valve (7), the second solenoid valve (8), the third solenoid valve (12) and the fourth solenoid valve (13) are all stop valves, the inlet of the first solenoid valve (7) faces to the water inlet pipe (9), the inlet of the second solenoid valve (8) faces to the water inlet pipe (9), the inlet of the third solenoid valve (12) faces to the water outlet pipe (14), and the inlet of the fourth solenoid valve (13) faces to the water outlet pipe (14).
3. The multistage centrifugal pump convenient for replacing the fan blades as claimed in claim 1, wherein the control device (17) comprises a control module, a display module and a key; the control module detects states of the first electromagnetic valve (7), the second electromagnetic valve (8), the third electromagnetic valve (12), the fourth electromagnetic valve (13), the first liquid level sensor (15) and the second liquid level sensor (16), converts the states of the first electromagnetic valve (7), the second electromagnetic valve (8), the third electromagnetic valve (12), the fourth electromagnetic valve (13), the first liquid level sensor (15) and the second liquid level sensor (16) into image signals and sends the image signals to the display module, and the display module displays the image signals; the key controls the opening and closing of the first electromagnetic valve (7), the second electromagnetic valve (8), the third electromagnetic valve (12) and the fourth electromagnetic valve (13) through the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710785214.8A CN107559211B (en) | 2017-09-04 | 2017-09-04 | Multistage centrifugal pump convenient to change flabellum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710785214.8A CN107559211B (en) | 2017-09-04 | 2017-09-04 | Multistage centrifugal pump convenient to change flabellum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107559211A CN107559211A (en) | 2018-01-09 |
| CN107559211B true CN107559211B (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710785214.8A Active CN107559211B (en) | 2017-09-04 | 2017-09-04 | Multistage centrifugal pump convenient to change flabellum |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6403238A (en) * | 1963-04-01 | 1964-10-02 | ||
| DE2459238A1 (en) * | 1974-12-14 | 1976-06-16 | Loewe Pumpenfabrik Gmbh | Twin pump device for heating plant - has control valve flaps with limited opening deflection and non return action fitted in output pipe |
| JPS60178395U (en) * | 1984-05-07 | 1985-11-27 | 株式会社 鶴見製作所 | detachable submersible pump |
| CN2434454Y (en) * | 2000-07-18 | 2001-06-13 | 上海凯泉泵业（集团）有限公司 | Single-stage single-sucking vertical split centrifugal pump set |
| DE20220646U1 (en) * | 2002-06-04 | 2003-12-24 | Bosch Rexroth Ag | Low-noise hydraulic unit |
| US8128340B2 (en) * | 2004-03-08 | 2012-03-06 | Gorman-Rupp, Co. | Stacked self-priming pump and centrifugal pump |
| CN2742196Y (en) * | 2004-09-30 | 2005-11-23 | 上海东方泵业(集团)有限公司 | Double linked pump |
| CN204126912U (en) * | 2014-08-19 | 2015-01-28 | 安徽金科橡塑制品有限公司 | A kind of submersible pump starting drive |
| CN205533288U (en) * | 2016-04-11 | 2016-08-31 | 郭学文 | Double -suction multi -stage centrifugal pump |
| CN205876739U (en) * | 2016-07-12 | 2017-01-11 | 浙江深海泵业科技有限公司 | Shield pump |
| CN106555758A (en) * | 2016-10-19 | 2017-04-05 | 滁州市大工机电有限公司 | A kind of sectional multi-stage centrifugal pump |
| CN207145250U (en) * | 2017-09-04 | 2018-03-27 | 四川宇康供水设备有限公司 | High-lift pump machine with multiple pump chambers |
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2017
- 2017-09-04 CN CN201710785214.8A patent/CN107559211B/en active Active
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