CN220415713U - Water diversion device of centrifugal pump - Google Patents
Water diversion device of centrifugal pump Download PDFInfo
- Publication number
- CN220415713U CN220415713U CN202321895890.8U CN202321895890U CN220415713U CN 220415713 U CN220415713 U CN 220415713U CN 202321895890 U CN202321895890 U CN 202321895890U CN 220415713 U CN220415713 U CN 220415713U
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- Prior art keywords
- water
- water diversion
- centrifugal pump
- tank
- pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 139
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 239000010865 sewage Substances 0.000 claims description 13
- 230000037452 priming Effects 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 5
- 239000011490 mineral wool Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 239000013049 sediment Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a water diversion device of a centrifugal pump, which comprises a water tank, wherein the water tank is connected with a water diversion tank through a water diversion pipe, the water diversion tank is connected with a water injection pipe through a water injection port, the water diversion tank is also connected with an input end of the centrifugal pump through a water inlet pipe, and an output end of the centrifugal pump is connected with a water outlet pipe; the water diversion tank is internally provided with a liquid level sensor and a cleaning component, the cleaning component comprises a rotating rod, one end of the rotating rod penetrates through the water diversion tank to be connected with a motor, the other end of the rotating rod is fixedly connected with a cleaning brush, and the cleaning brush is in fit contact with the bottom of the inner wall of the water diversion tank; the water injection pipe is provided with an electromagnetic valve, and the electromagnetic valve and the liquid level sensor are connected with the PLC. The water diversion device of the centrifugal pump is internally provided with the cleaning component, the water diversion tank can be cleaned after conveying is finished, scale or sediment at the bottom of the water diversion tank is avoided, the working efficiency and the service life of the centrifugal pump are further influenced, and the water diversion device is provided with the liquid level sensor and the electromagnetic valve, so that the liquid level of the water diversion tank can be monitored in real time, the liquid level in the water diversion tank is kept within a certain range, and manual real-time monitoring is avoided.
Description
Technical Field
The utility model belongs to the technical field of mechanical equipment, and particularly relates to a water diversion device of a centrifugal pump.
Background
Centrifugal pumps are not separated in chemical production, and are generally driven by motors to convey liquid under the action of centrifugal force. When the centrifugal pump is operated, if the pump is not full of liquid, or air leaks into the pump during operation, the centrifugal force generated when the impeller rotates is small because the air density is much smaller than the liquid density, so that a sufficient vacuum degree cannot be formed at the suction inlet to suck the liquid into the pump, and at this time, the impeller rotates, but the liquid cannot be conveyed, and the phenomenon is called air-binding. In order to avoid the occurrence of "air-binding", the pump body and the suction line must be filled with liquid and air-evacuated before each pump start.
At present, in order to avoid the generation of air-binding, a water diversion tank is generally additionally arranged in front of an inlet of a centrifugal pump so as to ensure the normal operation of the centrifugal pump. For example: chinese patent CN 201120362613.1 discloses a centrifugal pump water diversion device, a centrifugal pump control valve is connected between a centrifugal pump and a water diversion tank, a valve is arranged on a pipeline between the water diversion tank and a stock solution storage device, a water injection control valve and a water supplementing control valve are arranged on a pipeline connected with the water diversion tank in series, a conveying pipeline is connected with an output end of the centrifugal pump, and a conveying valve is arranged on the conveying pipeline. Chinese patent CN 201120527407.1 discloses an automatic water diversion device of sludge centrifugal pump, underground reservoir and confined drainage jar, underground reservoir upper portion is equipped with the normal water moisturizing pipe, drainage jar upper portion is equipped with the running water supply pipe, and the drainage jar is connected with vertical centrifugal pump through pipeline, be connected through the connecting pipe between drainage jar and the underground reservoir, be equipped with the check valve on the connecting pipe, be equipped with the valve on the running water supply pipe.
The water diversion device of the two centrifugal pumps is provided with a water diversion tank in front of the inlet of the centrifugal pump, but has the following defects: firstly, the liquid level condition in the water diversion tank is observed in real time manually, so that the working difficulty is increased; and (II) the water diversion tank is used for a long time, scale or sediment can be generated at the tank bottom, the water quality is influenced, the working efficiency and the service life of the centrifugal pump are further influenced, and no related structure exists in the water diversion tank to improve or avoid the conditions.
Disclosure of Invention
The utility model aims to provide a water diversion device of a centrifugal pump, which does not need manual real-time monitoring, prevents impurities from entering the centrifugal pump, and prolongs the service life of the centrifugal pump.
The utility model solves the problems by adopting the following technical scheme: the water diversion device of the centrifugal pump comprises a water tank, wherein the water tank is connected with a water diversion tank through a water diversion pipe, the water diversion tank is connected with a water injection pipe through a water injection port, the water diversion tank is also connected with an input end of the centrifugal pump through a water inlet pipe, and an output end of the centrifugal pump is connected with a water outlet pipe; the water diversion tank is internally provided with a liquid level sensor and a cleaning assembly, the cleaning assembly comprises a rotating rod, the rotating rod is rotatably arranged in the water diversion tank, one end of the rotating rod penetrates through the water diversion tank to be connected with a motor, the other end of the rotating rod is fixedly connected with a cleaning brush, and the cleaning brush is in contact with the bottom of the inner wall of the water diversion tank in a fitting way; the water injection pipe is provided with an electromagnetic valve, and the electromagnetic valve and the liquid level sensor are connected with the PLC.
Preferably, one end of the water conduit is provided with a filter screen and is positioned in the water tank, and the other end of the water conduit extends to the inside of the water conduit through the water inlet of the water conduit.
Preferably, the water diversion pipe is provided with a first control valve, the water inlet pipe is provided with a second control valve, and the water outlet pipe is provided with a check valve.
Preferably, the bottom of the water diversion tank is provided with a sewage outlet and is connected with a sewage pipe through the sewage outlet, and the sewage pipe is provided with a third control valve.
Preferably, the top end of the water diversion tank is provided with an evacuation valve.
Preferably, the outer surfaces of the water diversion tank and the centrifugal pump are both provided with heat preservation layers.
More preferably, the heat preservation layer is a rock wool layer.
Preferably, the cleaning brush comprises a base plate and a brush head fixedly connected to the base plate.
More preferably, the bottom plate is a rectangular bottom plate.
Compared with the prior art, the utility model has the advantages that:
(1) The cleaning assembly is arranged in the water diversion tank and comprises the rotating rod, one end of the rotating rod penetrates through the water diversion tank to be connected with the motor, the other end of the rotating rod is fixedly connected with the cleaning brush, the cleaning brush is in contact with the bottom of the inner wall of the water diversion tank, the water diversion tank can be cleaned after conveying is finished, scale or sediment at the bottom of the water diversion tank is avoided, water quality is influenced, and further working efficiency and service life of the centrifugal pump are influenced.
(2) The water diversion tank is internally provided with the liquid level sensor, the water diversion tank is connected with the water injection pipe, the water injection pipe is provided with the electromagnetic valve, and the electromagnetic valve and the liquid level sensor are both connected with the PLC, so that the liquid level sensor monitors the liquid level of the water diversion tank in real time and transmits signals to the PLC, and the PLC controls the closing or opening of the electromagnetic valve on the water injection pipe, so that the liquid level in the water diversion tank is kept in a certain range, and the manual real-time monitoring of the liquid level in the water diversion tank is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a water diversion device of a centrifugal pump in an embodiment of the utility model.
Wherein: 1 is a pool, 2 is a water guide pipe, 3 is a water guide tank, 4 is a water injection pipe, 5 is a water inlet pipe, 6 is a centrifugal pump, 7 is a water outlet pipe, 8 is a rotating rod, 9 is a motor, 10 is a cleaning brush, 11 is an electromagnetic valve, 12 is a filter screen, 13.1 is a first control valve, 13.2 is a second control valve, 13.3 is a second control valve, 14 is a check valve, 15 is a drain pipe, 16 is an emptying valve, and 17 is an insulating layer.
Description of the embodiments
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1, the centrifugal pump priming device in this embodiment is a schematic structural diagram.
The utility model provides a centrifugal pump diversion device, includes pond 1, pond 1 connects diversion jar 3 through diversion pipe 2, diversion jar 3 connects water injection pipe 4, diversion jar 3 still connects centrifugal pump 6 input through inlet tube 5, outlet pipe 7 is connected to centrifugal pump 6 output, diversion jar 3 bottom is equipped with the drain and connects blow off pipe 15 through the drain, diversion jar 3 top is equipped with exhaust valve 16, through exhaust valve 16 can carry out self-bleeding to diversion jar 3. Wherein, the water diversion pipe 2 one end is equipped with filter screen 12 and is located the inside of pond 1, and the other end extends to the water diversion jar 3 inside through water diversion jar 3 water inlet. In addition, the outer surfaces of the water diversion tank 3 and the centrifugal pump 6 are respectively provided with an insulating layer 17, specifically a rock wool layer, so that the water diversion tank 3 and the centrifugal pump 6 can be subjected to heat preservation treatment, and the effects of heat preservation and freezing prevention are achieved.
The water diversion pipe 2 is provided with a first control valve 13.1 for controlling the opening or closing of the water diversion pipe 2, the water inlet pipe 5 is provided with a second control valve 13.2 for controlling the opening or closing of the water inlet pipe 5, the sewage drain pipe 15 is provided with a third control valve 13.3 for controlling the opening or closing of the sewage drain pipe 15, the water outlet pipe 7 is provided with a check valve 14, and the check valve 14 can prevent the reverse flow of water flow.
Be equipped with clean subassembly in diversion jar 3, clean subassembly includes dwang 8, dwang 8 rotate install in diversion jar 3's inside, dwang 8 one end runs through diversion jar 3 and connects motor 9, the other end fixedly connected with cleaning brush 10, cleaning brush 10 includes bottom plate and the brush head of fixed connection on the bottom plate, brush head and diversion jar 3 diapire laminating contact, the bottom plate is the rectangle bottom plate.
The water diversion tank 3 is internally provided with a liquid level sensor, the water injection pipe 4 is provided with an electromagnetic valve 11, and the electromagnetic valve 11 and the liquid level sensor are connected with a PLC controller.
The working process of the present embodiment is described in detail below with reference to the accompanying drawings:
firstly, a liquid level sensor transmits a liquid level signal in a water diversion tank 3 to a PLC controller, the PLC controller controls an electromagnetic valve 11 to be opened, so that water enters the water diversion tank 3 through a water injection pipe 4 until the liquid level reaches a limited height, the liquid level sensor transmits the liquid level signal to the PLC controller, and the PLC controller controls the electromagnetic valve 11 to be closed; then the water conduit 2 is opened through the first control valve 13.1, the water inlet pipe 5 is opened through the second control valve 13.2, the centrifugal pump 6 is started, the centrifugal pump 6 works normally, and water is conveyed through the water outlet pipe 7; after the conveying is finished, the centrifugal pump 6, the second control valve 13.1 and the first control valve 13.2 are sequentially closed; finally, the motor 9 is started, the motor 9 drives the rotating rod 8 to rotate, the cleaning brush 10 at one end of the rotating rod 8 cleans the bottom wall inside the water diversion tank 3, scale accumulation or precipitation at the bottom of the water diversion tank 3 is avoided, and after cleaning is completed, the third control valve 13.3 is opened, so that sewage enters the sewage drain pipe 15 through the sewage drain and is discharged.
In the use process, the liquid level sensor monitors the liquid level in the water diversion tank 3 in real time and transmits signals to the PLC, and the PLC controls the closing or opening of the electromagnetic valve 11 on the water injection pipe 4, so that the liquid level in the water diversion tank 3 is kept in a certain range.
In addition to the above embodiments, the present utility model also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present utility model.
Claims (9)
1. The utility model provides a centrifugal pump diversion device which characterized in that: the water diversion device comprises a water tank (1), wherein the water tank (1) is connected with a water diversion tank (3) through a water diversion pipe (2), the water diversion tank (3) is connected with a water injection pipe (4), the water diversion tank (3) is also connected with the input end of a centrifugal pump (6) through a water inlet pipe (5), and the output end of the centrifugal pump (6) is connected with a water outlet pipe (7); a liquid level sensor and a cleaning assembly are arranged in the diversion tank (3), the cleaning assembly comprises a rotating rod (8), one end of the rotating rod (8) is connected with a motor (9), the other end of the rotating rod is fixedly connected with a cleaning brush (10), and the cleaning brush (10) is in fit contact with the bottom of the inner wall of the diversion tank (3); the water injection pipe (4) is provided with an electromagnetic valve (11), and the electromagnetic valve (11) and the liquid level sensor are connected with the PLC.
2. The priming device of a centrifugal pump of claim 1, wherein: one end of the water diversion pipe (2) is provided with a filter screen (12) and is positioned in the water tank (1), and the other end of the water diversion pipe extends to the inside of the water diversion tank (3) through a water inlet of the water diversion tank (3).
3. The priming device of a centrifugal pump of claim 1, wherein: the water diversion pipe (2) is provided with a first control valve (13.1), the water inlet pipe (5) is provided with a second control valve (13.2), and the water outlet pipe (7) is provided with a check valve (14).
4. The priming device of a centrifugal pump of claim 1, wherein: the bottom of the water diversion tank (3) is provided with a sewage outlet and is connected with a sewage pipe (15) through the sewage outlet, and a third control valve (13.3) is arranged on the sewage pipe (15).
5. The priming device of a centrifugal pump of claim 1, wherein: an evacuation valve (16) is arranged at the top end of the diversion tank (3).
6. The priming device of a centrifugal pump of claim 1, wherein: the outer surfaces of the diversion tank (3) and the centrifugal pump (6) are respectively provided with an insulating layer (17).
7. The priming device for a centrifugal pump of claim 5, wherein: the heat preservation layer (17) is a rock wool layer.
8. The priming device of a centrifugal pump of claim 1, wherein: the cleaning brush (10) comprises a base plate and a brush head fixedly connected to the base plate.
9. The priming device for a centrifugal pump of claim 8, wherein: the bottom plate is a rectangular bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321895890.8U CN220415713U (en) | 2023-07-19 | 2023-07-19 | Water diversion device of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321895890.8U CN220415713U (en) | 2023-07-19 | 2023-07-19 | Water diversion device of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220415713U true CN220415713U (en) | 2024-01-30 |
Family
ID=89657622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321895890.8U Active CN220415713U (en) | 2023-07-19 | 2023-07-19 | Water diversion device of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220415713U (en) |
-
2023
- 2023-07-19 CN CN202321895890.8U patent/CN220415713U/en active Active
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