CN219733611U - Idle-running-preventing protection device for water pump - Google Patents
Idle-running-preventing protection device for water pump Download PDFInfo
- Publication number
- CN219733611U CN219733611U CN202321317948.0U CN202321317948U CN219733611U CN 219733611 U CN219733611 U CN 219733611U CN 202321317948 U CN202321317948 U CN 202321317948U CN 219733611 U CN219733611 U CN 219733611U
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- China
- Prior art keywords
- water pump
- connecting pipe
- electronic valve
- idle
- protection device
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses an anti-idle rotation protection device of a water pump, which comprises the water pump and is characterized in that a connecting pipe is arranged on the water pump, a cylinder is arranged on the connecting pipe, a liquid level detection device is arranged on the cylinder, one side of the cylinder is respectively connected with a filter, a first electronic valve, an injection device and a second electronic valve, and the liquid level detection device, the first electronic valve and the second electronic valve are all connected with a control unit. The utility model can judge whether the water pump idles or not in time; the problem of idle running is solved under most conditions, so that the water pump is restored to normal operation.
Description
Technical Field
The utility model relates to a protection device, in particular to an anti-idle rotation protection device for a water pump.
Background
Idle operation of a pump generally refers to the absence of water in the pump chamber or the presence of a large amount of air in the pump chamber when the pump is in operation. When the pump idles, the impeller is not contacted or is seldom contacted with the medium, the medium is not conveyed out, and idle work is performed, so that electric energy is wasted; the pump is easy to cavitation, and damage is caused to the pump body and the overflow part; during idling, the mechanical seal or the packing seal cannot be effectively lubricated by liquid, so that dry grinding is caused to rapidly lose efficacy; the idle water pump rotor component or the heat-generating component has no liquid temperature reduction, and the sealing ring and other components are easy to be seized.
The main methods for preventing the idle running of the water pump at present are as follows: (1) detecting an operating current, wherein the operating current is very small during idling; (2) detecting the presence of water on the pump outlet line. By the method, whether idle running occurs or not is judged, and then the operation and stop of the water pump are controlled, so that the purpose of anti-idle running protection is achieved. However, the above-mentioned methods have disadvantages: the water pump normally operates on the surface, but when the upper part of the pump cavity collects gas, whether water exists in the detection pipeline or not can not be judged through detecting current; judging that hysteresis exists, and when the pump cavity is anhydrous or a plurality of air exists in the pump cavity, the water pump can be damaged to a certain extent; only whether the idle running is possible or not can be judged, and the idle running problem can not be solved.
Disclosure of Invention
The utility model aims to provide an anti-idle rotation protection device for a water pump, which can timely judge whether the water pump idles or not and solve the problem of idle rotation under most conditions so as to enable the water pump to recover to normal operation.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a water pump anti-idle protection device, includes the water pump, its characterized in that, set up the takeover on the water pump, set up the drum on the takeover, set up liquid level detection device on the drum, filter, first electronic valve, injection device, second electronic valve are connected respectively to drum one side, liquid level detection device, first electronic valve, second electronic valve all connect the control unit.
Compared with the prior art, the utility model has the following beneficial effects: the utility model can judge whether the water pump idles or not in time; the problem of idle running is solved under most conditions, so that the water pump is restored to normal operation.
Drawings
Fig. 1 is a structural diagram of an anti-idle protection device for a water pump.
Fig. 2 is a structural view of the injection device.
1 a water pump, 2 a liquid level detection device, 3a filter, 4 a first electronic valve, 5a spraying device, 6 a second electronic valve, 7 a control unit, 51 a device shell, 52 a first connecting pipe, 53a second connecting pipe, 53a spray head, 54 a conical separation part, 55a third connecting pipe, 55a first cylindrical section, 55b flaring section, 55c second cylindrical section, 100 a first valve, 101 a second valve and 102 a third valve.
Detailed Description
Referring to fig. 1, an anti-idle protection device for a water pump comprises a water pump 1, wherein a connecting pipe is arranged on the water pump 1, a cylinder is arranged on the connecting pipe, a liquid level detection device 2 is arranged on the cylinder, one side of the cylinder is respectively connected with a filter 3 (used for filtering), a first electronic valve 4, a spraying device 5 and a second electronic valve 6, and the liquid level detection device 2, the first electronic valve 4 and the second electronic valve 6 are all connected with a control unit 7.
The nipple is provided with a first valve 100. The filter 3 is provided with a second valve 101. The injection device 5 is provided with a third valve 103.
Referring to fig. 2, the spraying device has a device housing 51, a first connection pipe 52 (the first connection pipe is connected with a first electronic valve) is disposed on one side of the device housing 51, a second connection pipe 53 (the second connection pipe is connected with a second electronic valve) is disposed on the other side of the device housing 51, the second connection pipe 53 is connected with a spray head 53a through a bent pipe, a conical separation part 54 is disposed in the device housing 51, a third connection pipe 55 is disposed at the bottom of the conical separation part 54, the third connection pipe 55 extends downwards to the outside of the device housing 51, and the third connection pipe 55 sequentially has a first cylindrical section 55a, a flaring section 55b and a second cylindrical section 55c (the inner diameter of the first cylindrical section is smaller than the inner diameter of the second cylindrical section) from top to bottom, wherein an outlet of the spray head 53a is located at an inlet of the third connection pipe 55. In particular, the centerline height of the first adapter tube 52 is smaller than the centerline height of the second adapter tube 53 in order to facilitate the installation of the injection device.
The injection device is developed according to the venturi tube principle, takes compressed air with the pressure of 4-8bar as a driving source, enters from b to c and is discharged from c. The air source is sprayed out from the pipe sectional area suddenly reduced position (the position connected with the spray head 53 a) in the spraying device, a certain vacuum degree is formed at the upper parts of the two sides of the spray head 53a, and the air in the pump cavity is sucked up by utilizing the vacuum degree and the pressure difference in the pump cavity to be discharged along with the direction a and the direction c, so that the conveying medium fills the pump cavity. Most industrial enterprises have air compression stations, can provide stable air sources of 4-8bar, and if not, 1 small-power air compressor can be used, and the air compressor can be connected into a control box for linkage automatic control operation.
The liquid level detection device can use an electrode rod liquid level meter, a tuning fork liquid level meter and the like, such as an FTL31-1191/0 tuning fork liquid level meter manufactured by E+H company. Filters include, but are not limited to, MK-T pre-filters manufactured by Haning Mexican.
When the water pump is started, the controller is electrified to start working, when the liquid level detection device detects that water exists in the cylinder, the anti-idle rotation protection device does not act, and when the liquid level detection device detects that no water exists in the cylinder, the first electronic valve and the second electronic valve are completely opened, compressed air enters the injection device and takes away air at the upper part of the pump cavity, so that cavitation or idle rotation of the water pump can be avoided. If the spraying device works for a period of time, the upper part of the pump cavity still has air, which indicates that the air leakage of the water pump is serious or the water supply of the water source at the inlet of the pump is serious, the water pump is alarmed and stopped in a linkage way (correspondingly, the controller can be connected with the alarm device and the water pump to realize control), so as to protect the water pump.
The foregoing is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the foregoing embodiment, and all technical solutions belonging to the principles of the present utility model are within the protection scope of the present utility model. Modifications which would occur to those skilled in the art without departing from the principles of the utility model are also intended to be included within the scope of the utility model.
Claims (4)
1. The utility model provides a water pump anti-idle protection device, includes the water pump, its characterized in that, set up the takeover on the water pump, set up the drum on the takeover, set up liquid level detection device on the drum, filter, first electronic valve, injection device, second electronic valve are connected respectively to drum one side, liquid level detection device, first electronic valve, second electronic valve all connect the control unit.
2. The anti-idle rotation protection device for a water pump according to claim 1, wherein: the connecting pipe is provided with a first valve.
3. The anti-idle rotation protection device for a water pump according to claim 1, wherein: the filter is provided with a second valve.
4. The anti-idle rotation protection device for a water pump according to claim 1, wherein: the spraying device is provided with a device shell, a first connecting pipe is arranged on one side of the device shell, a second connecting pipe is arranged on the other side of the device shell, the second connecting pipe is connected with a spray head through a bent pipe, a conical separation part is arranged in the device shell, a third connecting pipe is arranged at the bottom of the conical separation part, the third connecting pipe downwards extends out of the device shell, and the third connecting pipe sequentially comprises a first columnar section, a flaring section and a second columnar section from top to bottom, wherein an outlet of the spray head is positioned at an inlet of the third connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321317948.0U CN219733611U (en) | 2023-05-28 | 2023-05-28 | Idle-running-preventing protection device for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321317948.0U CN219733611U (en) | 2023-05-28 | 2023-05-28 | Idle-running-preventing protection device for water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219733611U true CN219733611U (en) | 2023-09-22 |
Family
ID=88061891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321317948.0U Active CN219733611U (en) | 2023-05-28 | 2023-05-28 | Idle-running-preventing protection device for water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219733611U (en) |
-
2023
- 2023-05-28 CN CN202321317948.0U patent/CN219733611U/en active Active
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