CN219432106U - Self-recovery device for water leakage of centrifugal pump - Google Patents
Self-recovery device for water leakage of centrifugal pump Download PDFInfo
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- CN219432106U CN219432106U CN202320308960.9U CN202320308960U CN219432106U CN 219432106 U CN219432106 U CN 219432106U CN 202320308960 U CN202320308960 U CN 202320308960U CN 219432106 U CN219432106 U CN 219432106U
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- recovery
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 177
- 238000011084 recovery Methods 0.000 title claims abstract description 67
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a centrifugal pump water leakage self-recovery device, and relates to the technical field of pump station engineering. The water leakage self-recovery device comprises: the device comprises a water inlet pipe, a water outlet pipe, a water leakage recovery pipe and a jet device; the water inlet pipe is used for communicating the upstream of the ejector with the outlet pipe of the centrifugal pump, the water outlet pipe is used for communicating the downstream of the ejector with the inlet pipe of the centrifugal pump, and the water leakage recovery pipe is used for communicating the middle part of the ejector with the water leakage water receiving disc of the pump shaft; the water leakage self-recovery device utilizes the characteristic that the water pressure of the outlet pipe of the centrifugal pump is larger than that of the inlet pipe of the centrifugal pump, the jet device creates jet flow conditions through the water pressure difference between the water inlet pipe and the water outlet pipe, negative pressure is generated to suck water leakage, and the pump shaft of the centrifugal pump self-closed-loop recovery centrifugal pump is used for sealing the water leakage into the inlet pipe of the centrifugal pump, so that the water leakage self-recovery device is simple in structure, energy-saving, safe and convenient to maintain.
Description
Technical Field
The utility model relates to the technical field of pump station engineering, in particular to a centrifugal pump water leakage self-recovery device.
Background
In the field of pump station engineering, in particular to a horizontal centrifugal pump set with parallel operation, when one pump is operated, the pipeline head loss is delta H, the pump lift is the sum of net lift and delta H, and when n sets are operated in parallel, the pipeline head loss is n 2 The pump lift of each water pump running in parallel at the moment is net lift and n 2 * The sum of delta H shows that when n horizontal centrifugal pumps are operated in parallel, the lift is increased greatly, namely the actual lift of the water pump is too high, and the pump shaft seal is easy to break to cause leakage.
The pump shaft seal (called shaft seal for short) is a friction seal or stuffing box, which is used for preventing liquid leakage between the water pump shaft and the bearing, and is also a sealing device arranged for preventing leakage between the pump shaft and the pump shell. The water pump shaft seal is widely sealed by stuffing box, and has simple structure, low price, convenient maintenance and large leakage.
A leakage drainage system is usually arranged in the centrifugal pump room, and comprises a leakage water collecting well, two standby leakage drainage pumps, valves, pipelines and the like. The water pump is controlled to start and stop through a liquid level signal device in the water collecting well, and water is discharged to the outside of the pump house. The leakage drainage system increases the civil engineering quantity of the water collecting well, increases drainage pumps and pipeline equipment, and has larger investment and high operation and maintenance cost; once any equipment of the drainage system fails, potential safety hazards of flooding the pump house exist.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a centrifugal pump water leakage self-recovery device, which solves the problems of complex structure, high investment and maintenance cost and potential safety hazard of a centrifugal pump water leakage recovery system.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
a centrifugal pump leakage self-recovering device, the leakage self-recovering device comprising: the device comprises a water inlet pipe, a water outlet pipe, a water leakage recovery pipe and a jet device;
the water inlet pipe is used for communicating the upstream of the ejector with the outlet pipe of the centrifugal pump, the water outlet pipe is used for communicating the downstream of the ejector with the inlet pipe of the centrifugal pump, and the water leakage recovery pipe is used for communicating the middle part of the ejector with the water leakage water receiving disc of the pump shaft of the centrifugal pump.
Preferably, the water inlet pipe is a high-pressure water pipe, the water outlet pipe is a low-pressure water pipe, and the water leakage recovery pipe is a pressureless water pipe.
Preferably, the water inlet pipe is provided with a water inlet valve.
Preferably, the water outlet pipe is provided with a water outlet valve.
Preferably, the water leakage recovery pipe is provided with a check valve.
Preferably, the water inlet pipe, the water outlet pipe, the water leakage recovery pipe and the ejector are all made of stainless steel.
Preferably, the leakage self-recovery device is externally wrapped with a protective shell.
(III) beneficial effects
The utility model provides a centrifugal pump water leakage self-recovery device. Compared with the prior art, the method has the following beneficial effects:
in the present utility model, the water leakage self-recovery device includes: the device comprises a water inlet pipe, a water outlet pipe, a water leakage recovery pipe and a jet device; the water inlet pipe is used for communicating the upstream of the ejector with the outlet pipe of the centrifugal pump, the water outlet pipe is used for communicating the downstream of the ejector with the inlet pipe of the centrifugal pump, and the water leakage recovery pipe is used for communicating the middle part of the ejector with the water leakage water receiving disc of the pump shaft; the water leakage self-recovery device utilizes the characteristic that the water pressure of the outlet pipe of the centrifugal pump is larger than that of the inlet pipe of the centrifugal pump, the jet device creates jet flow conditions through the water pressure difference between the water inlet pipe and the water outlet pipe, negative pressure is generated to suck water leakage, and the pump shaft of the centrifugal pump self-closed-loop recovery centrifugal pump is used for sealing the water leakage into the inlet pipe of the centrifugal pump, so that the water leakage self-recovery device is simple in structure, energy-saving, safe and convenient to maintain.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of a centrifugal pump equipped with a water leakage self-recovery device in an embodiment of the present utility model;
FIG. 2 is a top view of a centrifugal pump with a water leakage self-recovery device installed in an embodiment of the present utility model;
fig. 3 is a left side view of a centrifugal pump equipped with a water leakage self-recovering device in an embodiment of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the application solves the problems of complex structure, high investment and maintenance cost and potential safety hazard of the centrifugal pump water leakage recovery system by providing the centrifugal pump water leakage self-recovery device.
The technical scheme in the embodiment of the application aims to solve the technical problems, and the overall thought is as follows:
in an embodiment of the present utility model, the water leakage self-recovery device includes: the device comprises a water inlet pipe, a water outlet pipe, a water leakage recovery pipe and a jet device; the water inlet pipe is used for communicating the upstream of the ejector with the outlet pipe of the centrifugal pump, the water outlet pipe is used for communicating the downstream of the ejector with the inlet pipe of the centrifugal pump, and the water leakage recovery pipe is used for communicating the middle part of the ejector with the water leakage water receiving disc of the pump shaft; the water leakage self-recovery device utilizes the characteristic that the water pressure of the outlet pipe of the centrifugal pump is larger than that of the inlet pipe of the centrifugal pump, the jet device creates jet flow conditions through the water pressure difference between the water inlet pipe and the water outlet pipe, negative pressure is generated to suck water leakage, and the pump shaft of the centrifugal pump self-closed-loop recovery centrifugal pump is used for sealing the water leakage into the inlet pipe of the centrifugal pump, so that the water leakage self-recovery device is simple in structure, energy-saving, safe and convenient to maintain.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Examples:
as shown in fig. 1 to 3, the present utility model provides a centrifugal pump leakage self-recovery device, comprising: the water inlet pipe 1, the water outlet pipe 2, the water leakage recovery pipe 3 and the ejector 4;
the water inlet pipe 1 is used for communicating the upstream of the ejector 4 with the centrifugal pump outlet pipe 5, the water outlet pipe 2 is used for communicating the downstream of the ejector 4 with the centrifugal pump inlet pipe 6, and the water leakage recovery pipe 3 is used for communicating the middle part of the ejector 4 with the water leakage water receiving disc 7 of the centrifugal pump shaft;
the leakage self-recovery device utilizes the characteristic that the water pressure of the outlet pipe 5 of the centrifugal pump is larger than that of the inlet pipe 6 of the centrifugal pump, the ejector 4 creates jet flow conditions through the water pressure difference between the water inlet pipe 1 and the water outlet pipe 2, negative pressure is generated to suck away leakage, and the pump shaft of the centrifugal pump self-closed loop recovers the sealed leakage water of the pump shaft of the centrifugal pump into the inlet pipe 6 of the centrifugal pump, so that the self-recovery device has the advantages of simple structure, energy conservation, safety and convenience in maintenance.
The water inlet pipe 1 is a high-pressure water pipe, the water outlet pipe 2 is a low-pressure water pipe, and the water leakage recovery pipe 3 is a pressureless water pipe.
As shown in fig. 2 and 3, the water inlet pipe 1 is provided with a water inlet valve 8, the water outlet pipe 2 is provided with a water outlet valve 9, and the water leakage recovery pipe 3 is provided with a check valve 10.
The water inlet pipe 1, the water outlet pipe 2, the water leakage recovery pipe 3 and the ejector 4 are all made of stainless steel materials.
As shown in fig. 1, the leakage self-recovery device is externally wrapped with a protective shell 11, and the protective shell 11 is fixed on the centrifugal pump through screws to protect the leakage self-recovery device.
When the centrifugal pump is in an on state, after the water receiving disc is stored and sealed, the water inlet valve 8 and the water outlet valve 9 can be opened at any time, high-pressure water enters the water inlet pipe 1 from the outlet pipe 5 of the centrifugal pump, the opening degree of the water inlet valve 8 is slowly adjusted, the high-pressure water enters the ejector 4, water in the water receiving disc 7 for sealing the water receiving disc for sealing the water of the centrifugal pump is sucked into the ejector 4 through the water leakage recovery pipe 3, and the high-pressure water and pressureless water enter the water outlet pipe 2 after being mixed in the ejector and finally enter the inlet pipe 6 of the centrifugal pump.
When the water leakage in the shaft seal water leakage water receiving disc 7 of the centrifugal pump is not too much, the water inlet valve 8 can be closed at any time, the water outlet valve 9 can be opened normally, and when the device is required to be overhauled, the water outlet valve 9 is closed. The water inlet valve 8 can be an electric valve and can be automatically controlled to be synchronous with the centrifugal pump or delayed to start or stop.
In summary, compared with the prior art, the utility model has the following beneficial effects:
in an embodiment of the present utility model, the water leakage self-recovery device includes: the device comprises a water inlet pipe, a water outlet pipe, a water leakage recovery pipe and a jet device; the water inlet pipe is used for communicating the upstream of the ejector with the outlet pipe of the centrifugal pump, the water outlet pipe is used for communicating the downstream of the ejector with the inlet pipe of the centrifugal pump, and the water leakage recovery pipe is used for communicating the middle part of the ejector with the water leakage water receiving disc of the pump shaft; the water leakage self-recovery device utilizes the characteristic that the water pressure of the outlet pipe of the centrifugal pump is larger than that of the inlet pipe of the centrifugal pump, the jet device creates jet flow conditions through the water pressure difference between the water inlet pipe and the water outlet pipe, negative pressure is generated to suck water leakage, and the pump shaft of the centrifugal pump self-closed-loop recovery centrifugal pump is used for sealing the water leakage into the inlet pipe of the centrifugal pump, so that the water leakage self-recovery device is simple in structure, energy-saving, safe and convenient to maintain.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (7)
1. A centrifugal pump leakage self-recovery device, characterized in that the leakage self-recovery device comprises: the water leakage recovery device comprises a water inlet pipe (1), a water outlet pipe (2), a water leakage recovery pipe (3) and a jet device (4);
the water inlet pipe (1) is used for communicating the upstream of the ejector (4) with the centrifugal pump outlet pipe (5), the water outlet pipe (2) is used for communicating the downstream of the ejector (4) with the centrifugal pump inlet pipe (6), and the water leakage recovery pipe (3) is used for communicating the middle part of the ejector (4) with the water leakage water receiving disc (7) of the centrifugal pump shaft.
2. The centrifugal pump leakage self-recovery device according to claim 1, wherein the water inlet pipe (1) is a high-pressure water pipe, the water outlet pipe (2) is a low-pressure water pipe, and the leakage recovery pipe (3) is a pressureless water pipe.
3. Centrifugal pump leakage self-recovery device according to claim 1, characterized in that the inlet pipe (1) is provided with a water inlet valve (8).
4. Centrifugal pump leakage self-recovery device according to claim 1, characterized in that the outlet pipe (2) is provided with an outlet valve (9).
5. Centrifugal pump leakage self-recovery device according to claim 1, characterized in that the leakage recovery pipe (3) is provided with a check valve (10).
6. The centrifugal pump leakage self-recovery device according to claim 1, wherein the water inlet pipe (1), the water outlet pipe (2), the leakage recovery pipe (3) and the jet device (4) are all made of stainless steel materials.
7. The centrifugal pump leakage self-recovery device according to any one of claims 1 to 6, wherein a protective shell (11) is arranged outside the leakage self-recovery device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320308960.9U CN219432106U (en) | 2023-02-24 | 2023-02-24 | Self-recovery device for water leakage of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320308960.9U CN219432106U (en) | 2023-02-24 | 2023-02-24 | Self-recovery device for water leakage of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219432106U true CN219432106U (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320308960.9U Active CN219432106U (en) | 2023-02-24 | 2023-02-24 | Self-recovery device for water leakage of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219432106U (en) |
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2023
- 2023-02-24 CN CN202320308960.9U patent/CN219432106U/en active Active
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Address after: No.185, Haitang Road, Hefei hi tech Development Zone, Anhui Province, 230088 Patentee after: Anhui water conservancy and hydropower survey and design research institute Co.,Ltd. Country or region after: Zhong Guo Address before: 230088 No. 185 Haitang Road, Hefei High-tech Zone, Anhui Province Patentee before: Anhui water resources and Hydropower Survey, design and Research Institute Co.,Ltd. Country or region before: Zhong Guo |