CN214533741U - Vertical multi-stage centrifugal pump - Google Patents
Vertical multi-stage centrifugal pump Download PDFInfo
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- CN214533741U CN214533741U CN202023128844.4U CN202023128844U CN214533741U CN 214533741 U CN214533741 U CN 214533741U CN 202023128844 U CN202023128844 U CN 202023128844U CN 214533741 U CN214533741 U CN 214533741U
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Abstract
The utility model discloses a vertical multistage centrifugal pump, which comprises a pump body and a motor arranged on the pump body, wherein the inlet of the pump body is connected with a first inlet pipeline and a second inlet pipeline, the first inlet pipeline and the second inlet pipeline are respectively provided with a first filter screen and a second filter screen, the front part of the first filter screen is provided with a first shut-off valve, the front part of the second filter screen is provided with a second shut-off valve, a first sewage discharge pipeline is arranged between the first filter screen and the first shut-off valve, and a second sewage discharge pipeline is arranged between the second filter screen and the second shut-off valve; the exit linkage of the pump body has the washing pipeline, washes the rear of pipeline connection in the rear of first filter screen and the rear of second filter screen. The utility model discloses the direction of rivers in the pipeline is by preceding orientation to back to the definition. The utility model discloses a pump body export is provided with the flushing pipe way, and the pressurized water through the flushing pipe way carries out the back flush to first filter screen or second filter screen, both can guarantee the not shut down work of centrifugal pump, can reduce the change clearance number of times of filter screen again.
Description
Technical Field
The utility model relates to a centrifugal pump field particularly, relates to a vertical multistage centrifugal pump.
Background
When vertical multistage centrifugal pump passes through the impeller high-speed rotation, be full of the liquid in the impeller and transmit under the effect of centrifugal force, can satisfy different water demands, the wide application in fields such as water supply, irrigation and industrial liquid transport, traditional vertical multistage centrifugal pump is when using because entry quality of water is not up to standard, debris in aquatic probably cause the damage to the pump body or impeller, current measure generally is for installing a filter screen additional at the inlet pipe, nevertheless uses still to need to shut down the change for a period.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a vertical multistage centrifugal pump can solve above-mentioned problem.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
a vertical multistage centrifugal pump comprises a pump body and a motor arranged on the pump body, wherein an inlet of the pump body is connected with a first inlet pipeline and a second inlet pipeline, the first inlet pipeline and the second inlet pipeline are respectively provided with a first filter screen and a second filter screen, a first shut-off valve is arranged in front of the first filter screen, a second shut-off valve is arranged in front of the second filter screen, a first sewage discharge pipeline is arranged between the first filter screen and the first shut-off valve, and a second sewage discharge pipeline is arranged between the second filter screen and the second shut-off valve; the exit linkage of the pump body has the washing pipeline, wash the pipeline connect in the rear of first filter screen with the rear of second filter screen. The utility model discloses the direction of rivers in the pipeline is by preceding orientation to back to the definition.
Furthermore, a first sewage discharge stop valve is arranged on the first sewage discharge pipeline, and a second sewage discharge stop valve is arranged on the second sewage discharge pipeline.
Furthermore, the rear of first filter screen is provided with the third shut-off valve, the rear of second filter screen is provided with the fourth shut-off valve, the flushing pipe is located the third shut-off valve with the place ahead of fourth shut-off valve.
Furthermore, the first filter screen and the second filter screen are both steel wire meshes.
Furthermore, the front ends of the first inlet pipeline and the second inlet pipeline are collected and connected with a water inlet pipe.
Further, the rear ends of the first inlet pipe and the second inlet pipe are collected and connected with the inlet of the pump body.
Further, the first sewage discharge pipeline is close to the first shutoff valve, and the second sewage discharge pipeline is close to the second shutoff valve.
The utility model has the advantages that: the utility model discloses a pump body export is provided with the flushing pipe way, and the pressurized water through the flushing pipe way carries out the back flush to first filter screen or second filter screen, both can guarantee the not shut down work of centrifugal pump, can reduce the change clearance number of times of filter screen again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a vertical multistage centrifugal pump.
In the figure: 1. the pump body, 2 the motor, 3 the first inlet pipeline, 4 the second inlet pipeline, 5 the first filter screen, 6 the second filter screen, 7 the first shutoff valve, 8 the second shutoff valve, 9 the first blowdown pipeline, 10 the second blowdown pipeline, 11 the flushing pipeline, 12 the first blowdown stop valve, 13 the second blowdown stop valve, 14 the third shutoff valve, 15 the fourth shutoff valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1, according to the embodiment of the present invention, a vertical multistage centrifugal pump includes a pump body 1 and a motor 2 disposed on the pump body 1, an inlet of the pump body 1 is connected with a first inlet pipeline 3 and a second inlet pipeline 4, the first inlet pipeline 3 and the second inlet pipeline 4 are respectively provided with a first filter screen 5 and a second filter screen 6, a first shut-off valve 7 is disposed in front of the first filter screen 5, a second shut-off valve 8 is disposed in front of the second filter screen 6, a first drainage pipeline 9 is disposed between the first filter screen 5 and the first shut-off valve 7, and a second drainage pipeline 10 is disposed between the second filter screen 6 and the second shut-off valve 8; the exit linkage of the pump body 1 has a washing pipeline 11, washing pipeline 11 connect in the rear of first filter screen 5 with the rear of second filter screen 6.
In a specific embodiment of the present invention, the first blowdown conduit 9 is provided with a first blowdown stop valve 12, and the second blowdown conduit 10 is provided with a second blowdown stop valve 13.
In a specific embodiment of the present invention, a third shut-off valve 14 is disposed behind the first screen 5, a fourth shut-off valve 15 is disposed behind the second screen 6, and the flushing pipe 11 is disposed in front of the third shut-off valve 14 and the fourth shut-off valve 15.
In a specific embodiment of the present invention, the first filter screen 5 and the second filter screen 6 are steel wire meshes.
In a specific embodiment of the present invention, the front ends of the first inlet pipe 3 and the second inlet pipe 4 converge and are connected with a water inlet pipe.
In a particular embodiment of the invention, the rear ends of the first inlet duct 3 and of the second inlet duct 4 converge and connect the inlet of the pump body 1.
In a particular embodiment of the invention, the first sewage conduit 9 is arranged close to the first shut-off valve 7, and the second sewage conduit 10 is arranged close to the second shut-off valve 8.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
When specifically using, according to the utility model discloses a vertical multistage centrifugal pump, first inlet pipe 3 moves, when first filter screen 5 blocks up, open second shutoff valve 8 earlier, make second inlet pipe 4 move, then close first shutoff valve 7 and third shutoff valve 14, then open first blowdown stop valve 12, open the shutoff valve on the flushing line 11 again, make debris on the first filter screen 5 discharge by first blowdown pipeline 9, after the washout, close shutoff valve and the first blowdown stop valve 12 on the flushing line 11, first inlet pipe 3 drops into reserve.
The first inlet pipeline 3 or the second inlet pipeline 4 can be used in turn, so that the water flow is ensured to be smooth, the centrifugal pump cannot be stopped due to blockage and cleaning of sundries, and the first filter screen 5 and the second filter screen 6 are not required to be taken out and cleaned manually and are directly washed by virtue of a high-pressure water source of the outlet pipeline of the pump body 1.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The vertical multistage centrifugal pump comprises a pump body (1) and a motor (2) arranged on the pump body (1), and is characterized in that an inlet of the pump body (1) is connected with a first inlet pipeline (3) and a second inlet pipeline (4), a first filter screen (5) and a second filter screen (6) are respectively arranged on the first inlet pipeline (3) and the second inlet pipeline (4), a first shut-off valve (7) is arranged in front of the first filter screen (5), a second shut-off valve (8) is arranged in front of the second filter screen (6), a first sewage discharge pipeline (9) is arranged between the first filter screen (5) and the first shut-off valve (7), and a second sewage discharge pipeline (10) is arranged between the second filter screen (6) and the second shut-off valve (8); the exit linkage of the pump body (1) has a washing pipeline (11), wash pipeline (11) connect in the rear of first filter screen (5) with the rear of second filter screen (6).
2. Vertical multistage centrifugal pump according to claim 1, characterized in that a first blow-off stop valve (12) is arranged on the first blow-off line (9) and a second blow-off stop valve (13) is arranged on the second blow-off line (10).
3. Vertical multistage centrifugal pump according to claim 1, characterized in that a third shut-off valve (14) is arranged behind the first screen (5), a fourth shut-off valve (15) is arranged behind the second screen (6), and the flushing pipe (11) is located in front of the third shut-off valve (14) and the fourth shut-off valve (15).
4. Vertical multistage centrifugal pump according to claim 1, characterized in that the first and second screens (5, 6) are both steel wire meshes.
5. Vertical multistage centrifugal pump according to claim 1, characterized in that the front ends of the first inlet pipe (3) and the second inlet pipe (4) converge and are connected with a water inlet pipe.
6. Vertical multistage centrifugal pump according to claim 1, characterized in that the rear ends of the first inlet duct (3) and of the second inlet duct (4) converge and are connected to the inlet of the pump body (1).
7. Vertical multistage centrifugal pump according to claim 1, characterized in that the first sewage line (9) is arranged close to the first shut-off valve (7) and the second sewage line (10) is arranged close to the second shut-off valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023128844.4U CN214533741U (en) | 2020-12-23 | 2020-12-23 | Vertical multi-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023128844.4U CN214533741U (en) | 2020-12-23 | 2020-12-23 | Vertical multi-stage centrifugal pump |
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| Publication Number | Publication Date |
|---|---|
| CN214533741U true CN214533741U (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023128844.4U Active CN214533741U (en) | 2020-12-23 | 2020-12-23 | Vertical multi-stage centrifugal pump |
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| CN (1) | CN214533741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857097A (en) * | 2022-04-26 | 2022-08-05 | 三联泵业股份有限公司 | Centrifugal pump mechanical seal pipeline system with back flushing and collecting functions |
-
2020
- 2020-12-23 CN CN202023128844.4U patent/CN214533741U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857097A (en) * | 2022-04-26 | 2022-08-05 | 三联泵业股份有限公司 | Centrifugal pump mechanical seal pipeline system with back flushing and collecting functions |
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