CN112502269A - Anti-flooding system for low-level pool pump room and control method thereof - Google Patents
Anti-flooding system for low-level pool pump room and control method thereof Download PDFInfo
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- CN112502269A CN112502269A CN202011552555.9A CN202011552555A CN112502269A CN 112502269 A CN112502269 A CN 112502269A CN 202011552555 A CN202011552555 A CN 202011552555A CN 112502269 A CN112502269 A CN 112502269A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Abstract
The invention discloses a low-level pool pump room anti-flooding system and a control method thereof, wherein the system comprises a water circulation system and a drainage system, the water circulation system comprises a circulating water pump and a circulating water inlet pipe, and the outlet of the circulating water inlet pipe is connected with the water inlet of the circulating water pump; a water collecting tank is arranged in the pump room, the drainage system comprises a drainage pump, the drainage pump is positioned at the bottom of the water collecting tank, a normally open electric water inlet switching valve is arranged on the circulating water inlet pipe, a drainage communicating pipe is communicated with the circulating water inlet pipe, and a normally closed electric drainage switching valve is arranged on the drainage communicating pipe; the drainage system comprises a low-level interlocking control assembly and a high-level interlocking control assembly, the low-level interlocking control assembly is connected with the drainage pump, and the high-level interlocking control assembly is respectively connected with the circulating water pump, the electric water inlet switching valve and the electric drainage switching valve. Has the advantages that: the invention can effectively prevent the pump room from being submerged through automatic control, thereby ensuring the equipment safety of the pump room.
Description
Technical Field
The invention relates to an anti-flooding system and a control method thereof, in particular to an anti-flooding system of a low-level pool pump room and a control method thereof, belonging to the technical field of hydraulic engineering.
Background
Industrial enterprises have more circulating water systems, and water pump houses are often in lower positions due to the requirements of efficient utilization of land and process environment. This is prone to a problem: the water pump room has the disadvantages that the water level suddenly rises due to the unexpected conditions of opening welding of a welding port, water leakage of a gasket, burst of flexible connection and the like, so that the water pump room is submerged, all motors bubble water, a large industrial accident is formed, the subsequent treatment time is long, the cost is high, and the total cost loss is extremely high.
At present, only an electric valve is arranged at the inlet of a circulating water pump, a drainage communicating pipe is communicated on a pipeline between the electric valve and the inlet of the water pump, the pipe opening of the drainage communicating pipe extends to a low-level water collecting tank, and the drainage electric valve is arranged on the communicating pipe, so that emergency switching and quick drainage are convenient when problems occur. However, after the emergency switching, the water circulation pump cannot perform the water discharge operation quickly and effectively due to the gas in the communication pipe.
An emergency drainage system can be further equipped for improving the emergency drainage capacity, but the emergency drainage system is relatively independent from a drainage system switched by the original water circulation system, and when a problem occurs, manual operation is needed to respectively start the emergency drainage system and the raw water circulation system; secondly, the multiple valves need to be operated simultaneously, so that misoperation is easy to occur, and further, the time is delayed to cause loss. The manual operation can not find and finish the drainage operation in time, even personnel can not enter the water pump room because of high liquid level, or the motor can not run because of being submerged and burned.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects in the prior art, the invention provides a submergence preventing system for a low-level pool pump room and a control method thereof; the invention can realize the quick drainage by the close fit of the water circulation system and the emergency drainage system, and can ensure that the emergency drainage system can quickly realize the full-load drainage; the problems of untimely manual operation and large labor capacity are solved.
The technical scheme is as follows: a low-level pool pump room anti-submergence system comprises a water circulation system and a drainage system, wherein the water circulation system comprises a circulating water pump and a circulating water inlet pipe, the circulating water pump is installed in a pump room, a water inlet of the circulating water inlet pipe is positioned below the liquid level in a reservoir, and an outlet of the circulating water inlet pipe is connected with a water inlet of the circulating water pump; a water collecting tank is arranged in the pump room, and the top surface of the water collecting tank is lower than the ground elevation of the pump room; the drainage system comprises a drainage pump, the drainage pump is positioned at the bottom of the water collecting tank, a normally open electric water inlet switching valve is arranged on the circulating water inlet pipe, a drainage communicating pipe is communicated with the circulating water inlet pipe between the electric water inlet switching valve and the circulating water pump, one end of the drainage communicating pipe is communicated with the circulating water inlet pipe, the other end of the drainage communicating pipe is positioned in the water collecting tank, and a normally closed electric drainage switching valve is arranged on the drainage communicating pipe; the drainage system comprises a low-position interlocking control assembly and a high-position interlocking control assembly, the low-position interlocking control assembly is located in the water collecting pool, the installation height of the high-position interlocking control assembly is higher than that of the low-position interlocking control assembly and lower than the bottom of the circulating water pump, the low-position interlocking control assembly is connected with the drainage pump, and the high-position interlocking control assembly is respectively connected with the circulating water pump, the electric water inlet switching valve and the electric drainage switching valve.
According to the invention, the water collecting pool is arranged to collect accumulated liquid caused by various leakages, the amount of the accumulated liquid in the pump room is monitored by the low-level interlocking control assembly and the high-level interlocking control assembly, the drainage system is arranged in the water collecting pool to automatically drain water, and when the leakage amount is larger than the drainage capacity of the drainage system, the liquid level rises to reach the monitoring range of the high-level interlocking control assembly, the raw water circulating system is switched into the emergency drainage system to drain water; the pump room can be effectively prevented from being submerged through automatic control, and the equipment safety of the pump room is further guaranteed.
Preferably, in order to ensure that the emergency drainage system can quickly realize full-load drainage, one end of the drainage communication pipe, which is positioned in the water collecting tank, is connected with a one-way valve, and the drainage communication pipe between the electric drainage switching valve and the one-way valve is filled with water.
Preferably, in order to improve reliability, a circulating water cut-off valve is arranged on the circulating water inlet pipe, is positioned on the circulating water inlet pipe between the electric water inlet switching valve and the reservoir and is positioned in the pump room. In order to prevent the electric water inlet switching valve from being incapable of being closed due to water immersion damage and communicating with the reservoir, the water circulation system is reliably closed by manually closing the circulating water cut-off valve.
Preferably, in order to increase the rescue time under the emergency situation, the bottom of the circulating water pump is provided with a mounting platform. The height of the circulating water pump and other electrical components is increased through the mounting platform, and the coping time of crisis is increased.
Preferably, in order to remind workers in time, the device further comprises an audible and visual alarm system, and the high-level interlocking control assembly is connected with the audible and visual alarm system. When the water level in the pump room reaches the height of the high-level interlocking control assembly, the serious leakage condition is indicated, and therefore, the emergency drainage is started, and meanwhile, workers are required to be reminded of overhauling equipment.
Preferably, in order to realize accurate automatic control, the low interlock control assembly comprises a low level liquid level meter, and the low level liquid level meter is respectively provided with a low level detection point and a high level detection point from bottom to top; the high-level interlocking control assembly comprises a high-level liquid level meter, wherein a low-level detection point and a high-level detection point are arranged on the high-level liquid level meter from bottom to top, the high-level detection point of the low-level liquid level meter is lower than the low-level detection point of the high-level liquid level meter, and the high-level detection point of the high-level liquid level meter is lower than the bottom of the circulating water pump.
A control method of a low-level pond pump room anti-flooding system comprises the following steps:
when the water level in the water collecting tank is lower than a low-level detection point of the low-level liquid level meter, the electric water inlet switching valve is kept normally open, the electric drainage switching valve is kept normally closed, the water circulation system works normally, and the drainage pump stops working;
when the water level in the water collecting tank reaches or is higher than a high-level detection point of the low-level liquid level meter, starting a drainage pump to drain water;
when the water level in the water collecting tank reaches or is higher than a high-level detection point of the high-level liquid level meter, the electric water inlet switching valve is closed, the electric water drainage switching valve is opened, and meanwhile, the sound-light alarm system is started. The circulating water pump runs normally, the water circulating system works normally, but the water sent out at the moment is the water in the water collecting tank.
When the water level in the water collecting tank falls back and is lower than a low-level detection point of the high-level liquid level meter, closing the electric drainage switching valve, opening the electric water inlet switching valve and closing the sound and light alarm system;
when the water level in the water collecting tank falls back and is lower than the low-level detection point of the low-level liquid level meter, the drainage pump stops working.
The electric water inlet switching valve and the electric water discharge switching valve are arranged in an interlocking manner and cannot be opened simultaneously, and the electric water inlet switching valve is opened and the electric water discharge switching valve is closed. The electric drainage switching valve is controlled by the liquid level meter in an interlocking way, and the water level in the water collecting tank is automatically opened and closed according to the height of the water level in the water collecting tank.
The check valve is the bottom valve, can guarantee under normal conditions that drainage communicating pipe can fill water, and electronic drainage diverter valve and electronic diverter valve of intaking do not influence circulating water pump normal operating. Under the special condition that the electric drainage switching valve is not closed in place, the pump room is not submerged because water flows out through the electric drainage switching valve in a large quantity.
The automatic drainage is carried out by monitoring the height of the water level in the pump room, and when the leakage rate is larger than the drainage capacity of the drainage system, the liquid level rises to reach the monitoring range of the high-level liquid level meter, and meanwhile, the raw water circulating system is switched into an emergency drainage system for drainage; the pump room can be effectively prevented from being submerged through automatic control, and the equipment safety of the pump room is further guaranteed.
Has the advantages that: according to the invention, the water collecting pool is arranged to collect accumulated liquid caused by various leakages, the amount of the accumulated liquid in the pump room is monitored by the low-level interlocking control assembly and the high-level interlocking control assembly, the drainage system is arranged in the water collecting pool to automatically drain water, and when the leakage amount is larger than the drainage capacity of the drainage system, the liquid level rises to reach the monitoring range of the high-level interlocking control assembly, the raw water circulating system is switched into the emergency drainage system to drain water; the pump room can be effectively prevented from being submerged through automatic control, so that the equipment safety of the pump room is guaranteed; the emergency drainage system can be ensured to quickly realize full-load drainage through the arrangement of the one-way valve; meanwhile, the problem of water leakage when the electric drainage switching valve is not closed to the right position is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
fig. 3 is a partial view showing the installation position of the sump and the circulating water pump according to the present invention.
Detailed Description
The following preferred embodiments of the present invention are described with reference to the accompanying drawings, but the scope of the present invention is not limited thereto.
As shown in the figure, the anti-submerging system for the pump room of the low-level water pool comprises a water circulating system 1 and a drainage system 2, wherein the water circulating system 1 comprises a circulating water pump 11 and a circulating water inlet pipe 12, the circulating water pump 11 is installed in the pump room 3, the water inlet of the circulating water inlet pipe 12 is positioned below the liquid level in the reservoir 4, and the outlet of the circulating water inlet pipe 12 is connected with the water inlet of the circulating water pump 11; a water collecting tank 31 is arranged in the pump room 3, and the bottom surface of the water collecting tank 31 is lower than the ground of the pump room 3; the drainage system 2 comprises a drainage pump 21, the drainage pump 21 is positioned at the bottom of a water collecting tank 31, a normally open electric water inlet switching valve 13 is arranged on the circulating water inlet pipe 12, a drainage communication pipe 14 is communicated with the circulating water inlet pipe 12 between the electric water inlet switching valve 13 and the circulating water pump 11, one end of the drainage communication pipe 14 is communicated with the circulating water inlet pipe 12, the other end of the drainage communication pipe 14 is positioned in the water collecting tank 31, and a normally closed electric drainage switching valve 15 is arranged on the drainage communication pipe 14; the drainage system 2 comprises a low-level interlocking control assembly 22 and a high-level interlocking control assembly 23, the low-level interlocking control assembly 22 is located in the water collecting tank 31, the installation height of the high-level interlocking control assembly 23 is higher than that of the low-level interlocking control assembly 22 and lower than the bottom of the circulating water pump 11, the low-level interlocking control assembly 22 is connected with the drainage pump 21, and the high-level interlocking control assembly 23 is respectively connected with the circulating water pump 11, the electric water inlet switching valve 13 and the electric drainage switching valve 15.
According to the invention, the water collecting tank 31 is arranged to collect accumulated liquid caused by various leakages, the amount of the accumulated liquid in the pump room 3 is monitored by the low-level interlocking control assembly 22 and the high-level interlocking control assembly 23, the drainage system 2 is arranged in the water collecting tank 31 to automatically drain water, and when the leakage amount is larger than the drainage capacity of the drainage system 2, the liquid level rises to reach the monitoring range of the high-level interlocking control assembly 23, the raw water circulating system 1 is switched into the emergency drainage system to drain water; the pump room 3 can be effectively prevented from being submerged through automatic control, and the equipment safety of the pump room 3 is further ensured.
In order to ensure that the emergency drainage system can quickly realize full-load drainage, one end of the drainage communicating pipe 14 positioned in the water collecting tank 31 is connected with a one-way valve 16, and the drainage communicating pipe 14 between the electric drainage switching valve 15 and the one-way valve 16 is filled with water.
In order to prevent the electric water inlet switching valve 13 from being unable to close the communication with the reservoir 4 due to water immersion damage, the water circulation system 1 is reliably closed by manually closing the circulating water cut-off valve 17. And a circulating water cut-off valve 17 is arranged on the circulating water inlet pipe 12, and the circulating water cut-off valve 17 is positioned on the circulating water inlet pipe 12 between the electric water inlet switching valve 13 and the reservoir 4 and is positioned in the pump room 3.
And a mounting platform 18 is arranged at the bottom of the circulating water pump 11. The height of the circulating water pump 11 and other electrical components is increased through the mounting platform 18, and the coping time of crisis is increased.
When the water level in the pump room 3 reaches the height of the high-level interlocking control assembly 23, it indicates that a serious leakage condition occurs, and therefore, the emergency drainage needs to be started and the staff needs to be reminded to overhaul the equipment. Therefore, the invention also comprises an acousto-optic alarm system, and the high-level interlocking control assembly 23 is connected with the acousto-optic alarm system.
In order to realize accurate automatic control, the low interlock control assembly 22 includes a low level liquid level meter, and the low level liquid level meter is respectively provided with a low level detection point and a high level detection point from bottom to top; the high-level interlocking control assembly 23 comprises a high-level liquid level meter, wherein a low-level detection point and a high-level detection point are arranged on the high-level liquid level meter from bottom to top, the high-level detection point of the low-level liquid level meter is lower than the low-level detection point of the high-level liquid level meter, and the high-level detection point of the high-level liquid level meter is lower than the bottom of the circulating water pump 11.
A control method of a low-level pond pump room anti-flooding system comprises the following steps:
when the water level in the water collecting tank 31 is lower than a low-level detection point of the low-level liquid level meter, the electric water inlet switching valve 13 is kept normally open, the electric drainage switching valve 15 is kept normally closed, the water circulation system 1 works normally, and the drainage pump 21 stops working;
when the water level in the water collecting tank 31 reaches or is higher than a high-level detection point of the low-level liquid level meter, starting the drainage pump 21 to drain water;
when the water level in the water collecting tank 31 reaches or is higher than a high-level detection point of a high-level liquid level meter, the electric water inlet switching valve 13 is closed, the electric water drainage switching valve 15 is opened, the circulating water pump 11 normally operates, water pumped by the circulating water pump 11 is changed into the water collecting tank 31 from the water storage tank 4, the water circulating system 1 normally operates, and meanwhile, the sound-light alarm system is started;
when the water level in the water collecting tank 31 falls back and is lower than a low-level detection point of the high-level liquid level meter, the electric drainage switching valve 15 is closed, the electric water inlet switching valve 13 is opened, the circulating water pump 11 operates normally, water pumped by the circulating water pump 11 is changed into the water collecting tank 31 from the water storage tank 4, the water circulating system 1 operates normally, and meanwhile, the sound-light alarm system is closed;
when the water level in the water collecting tank 31 falls back to be lower than the low detection point of the low level liquid level meter, the drainage pump 21 stops working.
The invention carries on the automatic drainage through the height of the water level in the monitoring pump house 3, when the leakage is greater than the drainage ability of the drainage system 2, the liquid level rises and reaches the high level liquid level gauge monitoring range, the raw water circulating system is switched into the emergent drainage system to carry on the drainage; the pump room can be effectively prevented from being submerged through automatic control, and the equipment safety of the pump room is further guaranteed.
The electric water intake switching valve 13 and the electric drain switching valve 15 are interlocked and cannot be opened simultaneously, and when the electric water intake switching valve 13 is opened, the electric drain switching valve 15 is closed. The electric drainage switching valve 15 is controlled by the liquid level meter in an interlocking way, and the water level in the water collecting tank 31 is automatically opened and closed.
The check valve 16 is a bottom valve, which can ensure that the drain communicating pipe 14 can be filled with water under normal conditions, and the electric drain switching valve 15 and the electric water inlet switching valve 13 do not affect the normal operation of the circulating water pump 11. Under the special condition that the electric drainage switching valve 15 is not closed in place, a large amount of water cannot flow out through the electric drainage switching valve 15, and the pump room 3 cannot be submerged.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (7)
1. A low-level pool pump room anti-submerging system comprises a water circulating system (1) and a drainage system (2), wherein the water circulating system (1) comprises a circulating water pump (11) and a circulating water inlet pipe (12), the circulating water pump (11) is installed in a pump room (3), a water inlet of the circulating water inlet pipe (12) is positioned below the liquid level in a reservoir (4), and the circulating water inlet pipe (12) is connected with a water inlet of the circulating water pump (11); a water collecting tank (31) is arranged in the pump room (3), and the top surface of the water collecting tank (31) is lower than the ground elevation of the pump room (3); -the drainage system (2) comprises a drainage pump (21), the drainage pump (21) being located at the bottom of a collection basin (31), characterized in that: a normally open electric water inlet switching valve (13) is arranged on the circulating water inlet pipe (12), a water drainage communicating pipe (14) is communicated with the circulating water inlet pipe (12) between the electric water inlet switching valve (13) and the circulating water pump (11), one end of the water drainage communicating pipe (14) is communicated with the circulating water inlet pipe (12), the other end of the water drainage communicating pipe (14) is positioned in a water collecting tank (31), and a normally closed electric water drainage switching valve (15) is arranged on the water drainage communicating pipe (14); the drainage system (2) comprises a low-position interlocking control assembly (22) and a high-position interlocking control assembly (23), the low-position interlocking control assembly (22) is located in a water collecting tank (31), the installation height of the high-position interlocking control assembly (23) is higher than that of the low-position interlocking control assembly (22) and lower than the bottom of a circulating water pump (11), the low-position interlocking control assembly (22) is connected with a drainage pump (21), and the high-position interlocking control assembly (23) is respectively connected with the circulating water pump (11), an electric water inlet switching valve (13) and an electric drainage switching valve (15).
2. The low level pool pump room submergence prevention system of claim 1, wherein: one end of the drainage communicating pipe (14) positioned in the water collecting tank (31) is connected with a one-way valve (16), and the drainage communicating pipe (14) between the electric drainage switching valve (15) and the one-way valve (16) is filled with water.
3. The low level pool pump room submergence prevention system of claim 1, wherein: be equipped with circulating water trip valve (17) on circulating water inlet pipe (12), circulating water trip valve (17) are located circulating water inlet pipe (12) between electronic water inlet diverter valve (13) and cistern (4) to be located pump house (3).
4. The low level pool pump room submergence prevention system of claim 1, wherein: and a mounting platform (18) is arranged at the bottom of the circulating water pump (11).
5. The low level pool pump room submergence prevention system of claim 1, wherein: the high-order interlocking control assembly (23) is connected with the acousto-optic alarm system.
6. The low level pool pump room submergence prevention system of claim 1 or 5, wherein: the low interlocking control assembly (22) comprises a low level gauge, and the low level gauge is respectively provided with a low level detection point and a high level detection point from bottom to top; the high-level interlocking control assembly (23) comprises a high-level liquid level meter, a low-level detection point and a high-level detection point are arranged on the high-level liquid level meter from bottom to top, the high-level detection point of the low-level liquid level meter is lower than the low-level detection point of the high-level liquid level meter, and the high-level detection point of the high-level liquid level meter is lower than the bottom of the circulating water pump (11).
7. The method for controlling the anti-flooding system for the pump house of the low level pond as claimed in claim 6, wherein:
when the water level in the water collecting tank (31) is lower than a low-level detection point of a low-level liquid level meter, the electric water inlet switching valve (13) is kept normally open, the electric water drainage switching valve (15) is kept normally closed, the water circulation system (1) works normally, and the water drainage pump (21) stops working;
when the water level in the water collecting tank (31) reaches or is higher than a high-level detection point of the low-level liquid level meter, starting the drainage pump (21) to drain water;
when the water level in the water collecting tank (31) reaches or is higher than a high-level detection point of a high-level liquid level meter, closing the electric water inlet switching valve (13), opening the electric water drainage switching valve (15), and simultaneously starting an audible and visual alarm system;
when the water level in the water collecting tank (31) falls back and is lower than a low-level detection point of the high-level liquid level meter, the electric drainage switching valve (15) is closed, the electric water inlet switching valve (13) is opened, and meanwhile, the sound-light alarm system is closed;
when the water level in the water collecting tank (31) falls back and is lower than a low-level detection point of the low-level liquid level meter, the drainage pump (21) stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011552555.9A CN112502269A (en) | 2020-12-24 | 2020-12-24 | Anti-flooding system for low-level pool pump room and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011552555.9A CN112502269A (en) | 2020-12-24 | 2020-12-24 | Anti-flooding system for low-level pool pump room and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112502269A true CN112502269A (en) | 2021-03-16 |
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ID=74923380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011552555.9A Pending CN112502269A (en) | 2020-12-24 | 2020-12-24 | Anti-flooding system for low-level pool pump room and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112502269A (en) |
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2020
- 2020-12-24 CN CN202011552555.9A patent/CN112502269A/en active Pending
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