CN219974833U - Automatic water diversion device of coal mine centrifugal pump - Google Patents
Automatic water diversion device of coal mine centrifugal pump Download PDFInfo
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- CN219974833U CN219974833U CN202321335927.1U CN202321335927U CN219974833U CN 219974833 U CN219974833 U CN 219974833U CN 202321335927 U CN202321335927 U CN 202321335927U CN 219974833 U CN219974833 U CN 219974833U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 228
- 239000003245 coal Substances 0.000 title claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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Abstract
The utility model discloses an automatic water diversion device of a coal mine centrifugal pump, which comprises a centrifugal pump, a water tank and a water supply pipeline, wherein the water tank is connected with the centrifugal pump; the water sucking port of the centrifugal pump is communicated with the water tank through a water supply pipeline, the water tank is communicated with the water tank through a water supply pipeline, and the water tank is provided with a water filling port. According to the automatic water diversion device provided by the utility model, the water tank is filled with water through the water filling port, after the centrifugal pump is started, the water in the water tank can be automatically discharged from the water outlet of the centrifugal pump through the communication between the water sucking port and the water tank, negative pressure is formed in the water tank, and the water in the water tank is automatically sucked into the water tank to form circulation due to the communication between the water tank and the water tank. And the centrifugal pump stops running, and the residual water in the water tank automatically conducts water diversion for the next opening of the centrifugal pump, so that the principle is simple, the operation is convenient, and the efficiency is high.
Description
Technical Field
The utility model relates to the technical field of coal mine electromechanics, in particular to an automatic water diversion device of a coal mine centrifugal pump.
Background
The secondary pump house of the sewage treatment plant originally uses a pipeline pump to supply water to the production pump house. But the capacity of a clean water pool of the field secondary pump house is insufficient, the pump flow of a water supply pipeline of the production pump house is small, and the treated clean water is wasted due to frequent overflow. Meanwhile, because the flow of the pipeline pump is small, the water supply time is long, when the underground production water suddenly increases, the water level of a pool of the production pump room can be rapidly reduced, and the safety risk of drinking the air exists. In order to solve the problems that the water tank of the secondary pump house has small capacity, clear water is easy to overflow, the flow rate of the pipeline pump is low, and water is slowly supplied to the production pump house, a centrifugal water pump is usually arranged to improve the flow rate of the secondary pump house to the production pump house.
However, the traditional centrifugal water pump needs to be vacuumized when started, and a vacuum pump or a vacuumized pipeline (water jet or wind jet) needs to be equipped for operation, so that the operation procedure is complicated no matter the vacuum pump is installed or a vacuumized pipeline is installed, and the equipment and the management maintenance amount are additionally increased.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: solves the problem of complicated operation of the existing centrifugal pump.
In order to solve the technical problems, the utility model provides the following technical scheme:
an automatic water diversion device of a coal mine centrifugal pump comprises a centrifugal pump, a water tank and a water supply pipeline;
the water sucking port of the centrifugal pump is communicated with the water tank through a water supply pipeline, the water tank is communicated with the water tank through a water supply pipeline, and the water tank is provided with a water filling port.
The advantages are that: according to the automatic water diversion device provided by the utility model, the water tank is filled with water through the water filling port, after the centrifugal pump is started, the water in the water tank can be automatically discharged from the water outlet of the centrifugal pump through the communication between the water sucking port and the water tank, negative pressure is formed in the water tank, and the water in the water tank is automatically sucked into the water tank to form circulation due to the communication between the water tank and the water tank. And the centrifugal pump stops running, and the residual water in the water tank automatically conducts water diversion for the next opening of the centrifugal pump, so that the principle is simple, the operation is convenient, the efficiency is high, and the overflow problem caused by insufficient capacity of a water tank of the secondary pump room and small flow of the pipeline pump is solved.
Preferably, the automatic water diversion device further comprises a check valve installed in a water supply pipe at a water outlet of the centrifugal pump, through which water in the centrifugal pump can pass.
Preferably, the water tank is of a cylindrical structure, and a communication point between the centrifugal pump and the water tank is positioned at the lower end of the side wall of the water tank; the water tank is connected with the water tank through the water injection port.
Preferably, the water injection port is capable of being closed.
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the automatic water diversion device provided by the utility model, the water tank is filled with water through the water filling port, after the centrifugal pump is started, the water in the water tank can be automatically discharged from the water outlet of the centrifugal pump through the communication between the water sucking port and the water tank, negative pressure is formed in the water tank, and the water in the water tank is automatically sucked into the water tank to form circulation due to the communication between the water tank and the water tank. And the centrifugal pump stops running, and the residual water in the water tank automatically conducts water diversion for the next opening of the centrifugal pump, so that the principle is simple, the operation is convenient, the efficiency is high, and the overflow problem caused by insufficient capacity of a water tank of the secondary pump room and small flow of the pipeline pump is solved.
(2) The automatic water diversion device for the centrifugal pump, which is designed by the utility model, has the advantages of simple principle, convenient pump starting operation, stable work and high pump starting efficiency, and reduces certain cavitation phenomenon and corrosion of the water pump.
Drawings
FIG. 1 is a schematic diagram of a connection according to an embodiment of the present utility model;
in the figure: 1. a centrifugal pump; 11. a water suction port; 12. a water outlet; 2. a water tank; 21. a water filling port; 3. a pool; 4. a water supply pipe; 5. a non-return valve.
Detailed Description
In order to facilitate the understanding of the technical scheme of the present utility model by those skilled in the art, the technical scheme of the present utility model will be further described with reference to the accompanying drawings.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1, the embodiment discloses an automatic water diversion device of a coal mine centrifugal pump, which comprises a centrifugal pump 1, a water tank 2, a pool 3, a water supply pipeline 4 and a check valve 5.
The water suction port 11 of the centrifugal pump 1 is communicated with the water tank 2 through a water supply pipeline 4, the water tank 2 is communicated with the water tank 3 through the water supply pipeline 4, and the water tank 2 is provided with a water filling port 21. The automatic water diversion device also comprises a check valve 5, and the check valve 5 is arranged in the water supply pipeline 4 at the water outlet 12 of the centrifugal pump 1. The water tank 2 is of a cylindrical structure, and a communication point between the centrifugal pump 1 and the water tank 2 is positioned at the lower end of the side wall of the water tank 2; the communication point of the water tank 2 and the water tank 3 is positioned at the lower end of the water tank 2, and the water filling port 21 is arranged at the upper end of the water tank 2.
In the automatic water diversion device of the present embodiment, when the centrifugal pump 1 is started for the first time, the water tank 2 needs to be filled with water through the water filling port 21, and then the water filling port 21 of the water tank 2 is closed. After the centrifugal water pump is started, water in the water tank 2 is discharged through the water suction port 11 by the check valve 5 which is automatically opened. Negative pressure is formed in the water tank 2, and water in the water tank 3 is automatically sucked into the water tank 2 by utilizing siphon effect to form circulation. Once the centrifugal pump 1 stops running, the check valve 5 is automatically closed, and the residual water in the water tank 2 automatically conducts water diversion for the next opening of the centrifugal pump 1.
The embodiment designs an automatic water diversion device of the centrifugal pump 1 by utilizing the siphon effect, and has the advantages of simple principle, convenient operation and high efficiency.
Compared with the traditional mode, the automatic water diversion device of the embodiment is characterized in that:
1. the pump starting signal is simple to detect
The detection signal of the system for installing the jet device is a negative pressure value in the water pump, and the negative pressure value of the water pump is different when the pump is started due to different liquid levels of the water tank when the pump is started, so that the detection of the signal of the negative pressure value has certain difficulty and uncontrollability. Even if the negative pressure value reaches the requirement, no air can not be completely ensured in the water pump, so that the air-binding phenomenon easily occurs when the pump is started, namely the pump is started to fail and the water cannot be drained normally.
The system of the automatic water diversion device of the embodiment starts the pump, is irrelevant to the liquid level of the water sump, and because the self-priming water tank 2 and the centrifugal pump 1 are directly connected and the water in the water tank 2 is full when the pump is started, the centrifugal pump 1 is also always full of water, thus completely solving the air-binding phenomenon when the pump is started.
2. Reducing cavitation
In the system provided with the jet device, the water suction pipe is directly connected with the water inlet of the water pump, so that air doped in liquid can directly enter the water pump when the water pump works, and cavitation of the water pump can be aggravated.
The automatic water diversion device of the embodiment is characterized in that the water suction pipe is connected with the self-priming water tank 2 and is not directly connected with the centrifugal pump 1, and water sucked by the water suction pipe is filtered and buffered by the water tank 2 when the centrifugal pump 1 works, so that air or bubbles doped in liquid are left in the self-priming water tank 2. Thus, cavitation of the water pump can be greatly reduced.
3. Stable and reliable work
The system provided with the jet device is additionally provided with the jet pump and corresponding electrical control equipment, so that the failure rate of the whole system is increased, the water pump cannot be normally started when the jet pump fails, certain hidden danger is brought to the normal use of the water supply pump, and the maintenance workload of a user is increased.
In the system of the automatic water diversion device of the embodiment, the self-priming water tank 2 is communicated with the centrifugal pump 1 and always keeps a full water state, so that the centrifugal pump 1 cannot be started because water is not poured. The failure rate of the whole system is greatly reduced, the centrifugal pump 1 is enabled to operate reliably and stably, and the maintenance workload of equipment is reduced.
4. High pump starting efficiency
The system for installing the jet device must ensure that the sealing performance of the joint of the water pump and the motor is good, if the sealing performance is poor, the requirement of the negative pressure when the pump is started can be excessively long or cannot be met completely when the jet is vacuumized, and when the negative pressure value reaches the requirement, the pump is started immediately, otherwise, the pump is started failure can be caused when the air enters excessively long, so that the pump starting efficiency can be greatly reduced.
In the system of the automatic water diversion device of the embodiment, the self-priming water tank 2 is communicated with the centrifugal pump 1 and always keeps a full water state, the centrifugal pump 1 is filled with water all the time and has no negative pressure value, the sealing requirement on the joint of the centrifugal pump 1 and the motor is not high, the centrifugal pump 1 can be started instantaneously at any time, and the pump starting efficiency is increased.
5. Reducing corrosion of water pump
The system for installing the jet device can leave certain water in the water pump after the water pump works, and the water pump body is internally provided with water and air, so that the corrosion effect of the condition on the water pump body is maximum, and the service life of the water pump can be prolonged.
In the system of the automatic water diversion device of the embodiment, after the centrifugal pump 1 works, water in the self-priming water tank 2 can enter the centrifugal pump 1 and fully fill the whole inside of the centrifugal pump 1, and in this case, the corrosion effect of the water on the pump body of the centrifugal pump 1 is minimum, so that the service life of the centrifugal pump 1 can be prolonged.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The above-described embodiments merely represent embodiments of the utility model, the scope of the utility model is not limited to the above-described embodiments, and it is obvious to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (3)
1. An automatic water diversion device of a coal mine centrifugal pump is characterized in that: comprises a centrifugal pump (1), a water tank (2), a water tank (3) and a water supply pipeline (4);
the water suction port (11) of the centrifugal pump (1) is communicated with the water tank (2) through a water supply pipeline (4), the water tank (2) is communicated with the water tank (3) through the water supply pipeline (4), and the water tank (2) is provided with a water injection port (21);
the automatic water diversion device further comprises a check valve (5), the check valve (5) is arranged in a water supply pipeline (4) at a water outlet (12) of the centrifugal pump (1), and water in the centrifugal pump (1) can pass through the check valve (5).
2. The automatic water diversion device of the centrifugal pump of the coal mine according to claim 1, wherein: the water tank (2) is of a cylindrical structure, and a communication point between the centrifugal pump (1) and the water tank (2) is positioned at the lower end of the side wall of the water tank (2); the water tank (2) is connected with the water tank (3) at the lower end of the water tank (2), and the water injection port (21) is arranged at the upper end of the water tank (2).
3. The automatic water diversion device of the centrifugal pump of the coal mine according to claim 1, wherein: the water injection port (21) can be sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321335927.1U CN219974833U (en) | 2023-05-26 | 2023-05-26 | Automatic water diversion device of coal mine centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321335927.1U CN219974833U (en) | 2023-05-26 | 2023-05-26 | Automatic water diversion device of coal mine centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219974833U true CN219974833U (en) | 2023-11-07 |
Family
ID=88579437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321335927.1U Active CN219974833U (en) | 2023-05-26 | 2023-05-26 | Automatic water diversion device of coal mine centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219974833U (en) |
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2023
- 2023-05-26 CN CN202321335927.1U patent/CN219974833U/en active Active
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