CN213049105U - Water tank water level control system for high-pressure water mist fire extinguishing system - Google Patents
Water tank water level control system for high-pressure water mist fire extinguishing system Download PDFInfo
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- CN213049105U CN213049105U CN202021044407.1U CN202021044407U CN213049105U CN 213049105 U CN213049105 U CN 213049105U CN 202021044407 U CN202021044407 U CN 202021044407U CN 213049105 U CN213049105 U CN 213049105U
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Abstract
The utility model belongs to the technical field of fire-fighting control, in particular to a water tank water level control system used in a high-pressure water mist fire extinguishing system, which comprises a water replenishing main pump and a water replenishing standby pump which are connected in parallel, wherein the water replenishing main pump and the water replenishing standby pump are sequentially arranged on a water replenishing pipeline along the water inlet direction, a high-pressure pump and a pressure stabilizing pump are connected in parallel, a plurality of floating ball liquid level sensors are arranged on the side wall of the high-pressure water mist water tank from top to bottom at intervals, the information output ends of the floating ball liquid level sensors are respectively connected with the input end of a Programmable Logic Controller (PLC) through circuits, the output end of the PLC is respectively connected with the water replenishing main pump, the water replenishing standby pump, the high-pressure pump, the pressure stabilizing pump, the water replenishing electromagnetic valve, the flow switch sensor and an alarm device through circuits, thereby realizing automatic water replenishing, water stopping and work, being, reducing casualties and property loss.
Description
Technical Field
The utility model belongs to the technical field of the fire control of putting out a fire, especially, involve a water tank water level control system for among high-pressure water mist fire extinguishing systems.
Background
At present, a high-pressure water mist fire extinguishing system is widely applied in fire fighting work, A, B, C and electric fires can be effectively extinguished, and the high-pressure water mist fire extinguishing system has the advantages of high efficiency, water saving, safety, environmental protection, wide application range and the like, the water consumption of the high-pressure water mist fire extinguishing system is only 1% of that of a spraying system, the fire extinguishing efficiency is 200-300 times of that of the spraying system, the high-pressure water mist fire extinguishing water is sourced from a water mist water tank, the sufficient fire extinguishing water of the water tank is kept, and the stable water supply of the water tank is ensured; most thin water smoke water tank water level now adopts floater formula level sensor to detect, and water level control adopts the electric cabinet hard wire to connect and realizes that the moisturizing pump opens and stops, and technical means is single, when floater formula level sensor breaks down or the moisturizing pump trouble, and electric system can not effectively judge water tank liquid level state or moisturizing pump running state, leads to water tank fire control water volume not enough or supplies water not enough, makes fire extinguishing system have the potential safety hazard, seriously probably leads to fire extinguishing system can not in time effectively put out a fire.
Disclosure of Invention
In order to solve the problem in the background art, the utility model discloses a water tank water level control system for among high-pressure water mist fire extinguishing systems, including moisturizing solenoid valve, flow switch sensor, floater level sensor and programmable logic controller PLC, realize automatic water supply, guarantee that the fire-fighting water is sufficient.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a water tank water level control system used in a high-pressure water mist fire extinguishing system comprises a high-pressure water mist water tank, a water replenishing main pump, a water replenishing standby pump, a high-pressure pump, a pressure stabilizing pump, a water replenishing electromagnetic valve, a flow switch sensor, a floating ball liquid level sensor, a Programmable Logic Controller (PLC) and an alarm device, wherein the water replenishing main pump and the water replenishing standby pump are connected in parallel, the water inlet ends of the water replenishing main pump and the water replenishing standby pump are respectively connected with a water inlet pipeline, the water outlet ends of the water replenishing main pump and the water replenishing standby pump are both connected with the high-pressure water mist water tank through water replenishing pipelines, the water replenishing electromagnetic valve and the flow switch sensor are sequentially arranged on the water replenishing pipeline along the water inlet direction, the high-pressure pump and the pressure stabilizing pump are connected in parallel, the water inlet ends of the high-pressure pump and the pressure stabilizing pump are respectively connected, a plurality of floating ball liquid level sensors are arranged on the side wall of the high-pressure water mist water tank at intervals from top to bottom, the information output ends of the floating ball liquid level sensors are respectively connected with the input end of a Programmable Logic Controller (PLC) through circuits, and the output end of the PLC is respectively connected with a main water replenishing pump, a standby water replenishing pump, a high-pressure pump, a pressure stabilizing pump, a water replenishing electromagnetic valve, a flow switch sensor and an alarm device through circuits.
Further, floater level sensor is including upper limit level sensor, moisturizing level sensor, low level sensor and the lower limit level sensor that from top to bottom interval set up at the thin water smoke water tank lateral wall of high pressure, and upper limit level sensor, moisturizing level sensor, low level sensor and lower limit level sensor's information delivery end are connected with programmable logic controller PLC's input through the circuit respectively.
Furthermore, a differential pressure type liquid level transmitter for acquiring a water level signal in the high-pressure water mist water tank in real time is arranged at the bottom of the high-pressure water mist water tank, and an information conveying end of the differential pressure type liquid level transmitter is connected with an input end of a Programmable Logic Controller (PLC) through a line.
Furthermore, a reed pipe liquid level meter for indicating the actual water level of the water tank on site is also arranged on the side wall of the high-pressure water mist water tank.
Furthermore, the programmable logic controller PLC is arranged in the control cabinet, and the alarm device is arranged at the top of the control cabinet.
Furthermore, a drain pipe is arranged at the bottom of the high-pressure water mist water tank, a drain valve is arranged on the drain pipe, an overflow port is arranged at the upper end of the side wall of the high-pressure water mist water tank, and the drain pipe and the water outlet end of the overflow port are both connected with a drain pipe.
Furthermore, a pipeline between the water inlet ends of the high-pressure pump and the pressure stabilizing pump and the high-pressure water mist water tank is provided with an overhaul valve.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model automatically monitors the water level of the high-pressure water mist water tank through the floating ball liquid level sensor, and when the liquid level reaches the water replenishing liquid level, the programmable logic controller PLC controls the water replenishing electromagnetic valve to open the water replenishing main pump and/or the water replenishing standby pump to start, thereby realizing automatic water replenishing; when the liquid level reaches the upper limit liquid level, the water replenishing electromagnetic valve is controlled to be closed, and the water replenishing pump stops working to realize the purpose of stopping water replenishing; when the liquid level reaches a low liquid level, the alarm device is controlled to give out sound and light alarm; when the liquid level reaches the lower limit liquid level, controlling the high-pressure pump and the pressure stabilizing pump to stop working;
2. when the system has faults, such as the water replenishing pump cannot be started, or the water replenishing pump is started but the flow sensor cannot detect the flow, or the high-pressure water mist water tank is low in water level, or the main power supply of the system is lost, the alarm device sends out sound-light alarm to warn a worker to remove the faults in time;
3. the utility model adopts redundant configuration for the medium differential pressure type liquid level transmitter and the liquid level sensor, when the signal of the liquid level transmitter or the sensor fails, the PLC control system decides the liquid level state of the water outlet tank through logic judgment; the water replenishing main pump and the water replenishing standby pump adopt redundant configuration, and when the water mist water tank needs to replenish water and the water replenishing main pump fails and cannot be started, the PLC control system automatically switches to start the water replenishing standby pump;
4. the utility model discloses control technique can improve fire extinguishing systems operational reliability, and factor of safety is high, and operation maintenance is simple and convenient, and the problem that fire extinguishing systems that the at utmost reduces water tank fire water is not enough or the moisturizing pump trouble causes supplies water inadequately reduces casualties and loss of property.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the upper diagram: 1-high pressure water mist water tank; 2-water supplement main pump; 3-a water replenishing standby pump; 4-a high pressure pump; 5-a pressure stabilizing pump; 6-water supplement electromagnetic valve; 7-a flow switch sensor; 8-programmable controller PLC; 9-an alarm device; 10-reed pipe liquid level meter; 11-differential pressure level transmitter; 12-upper limit liquid level sensor; 13-a water replenishing level sensor; 14-low level sensor; 15-lower limit level sensor; 16-a water inlet pipe; 17-water outlet pipeline; 18-a service valve; 19-an overflow port; 20-a blowdown valve; 21-drainage pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The water tank water level control system for the high-pressure water mist fire extinguishing system is elaborated by combining with the attached figure 1, and comprises a high-pressure water mist water tank 1, a water replenishing main pump 2, a water replenishing standby pump 3, a high-pressure pump 4, a pressure stabilizing pump 5, a water replenishing electromagnetic valve 6, a flow switch sensor 7, a floating ball liquid level sensor, a programmable logic controller PLC8 and an alarm device 9, wherein the water replenishing main pump 2 and the water replenishing standby pump 3 are connected in parallel, the water inlet ends of the water replenishing main pump 2 and the water replenishing standby pump 3 are respectively connected with a water inlet pipeline 16, the water outlet ends of the water replenishing main pump 2 and the water replenishing standby pump 3 are both connected with the high-pressure water mist water tank 1 through a water replenishing pipeline, the water replenishing electromagnetic valve 6 and the flow switch sensor 7 are sequentially arranged on the water replenishing pipeline along the water inlet direction, the flow switch sensor 7, information is transmitted to a programmable controller PLC8, a Siemens S7-1500 series programmable controller PLC is adopted in the programmable controller PLC8, after the programmable controller PLC8 receives a water replenishing signal of the high-pressure fine water mist water tank 1, a water replenishing electromagnetic valve 6 is controlled to be opened, after 1S of time delay, a water replenishing main pump 2 is controlled to be started, automatic water replenishing of the high-pressure fine water mist water tank 1 is achieved, at the moment, fire-fighting water flows through a water replenishing pipeline, and a flow switch sensor 7 acts; if a water replenishing signal comes, the water replenishing main pump 2 cannot be started within 5s or the flow switch sensor 7 cannot detect the flow of water for fire fighting, the programmable logic controller PLC8 sends a fault signal to control the alarm device 9 to send out audible and visual alarm to warn a worker to timely eliminate the fault, the water replenishing main pump 2 fault programmable logic controller PLC8 automatically switches and starts the water replenishing standby pump 3 so as to realize normal water replenishing of the high-pressure fine water mist water tank 1, the high-pressure pump 4 is connected with the pressure stabilizing pump 5 in parallel, the high-pressure fine water mist water tank 1 is connected with the water inlet ends of the high-pressure pump 4 and the pressure stabilizing pump 5 through pipelines, the water outlet ends of the high-pressure pump 4 and the pressure stabilizing pump 5 are connected with the high-pressure fine water mist fire extinguisher through a water outlet pipeline 17, a plurality of floating ball liquid level sensors are arranged on the side wall of the high-pressure fine, when the water level of the high-pressure water mist water tank 1 reaches the position of a certain floating ball liquid level sensor, a switch signal of an internal sensor is closed, the programmable logic controller PLC8 collects a signal of the floating ball liquid level meter in real time, an information output end of the floating ball liquid level sensor is connected with an input end of the programmable logic controller PLC8 through a circuit, and an output end of the programmable logic controller PLC8 is connected with the main water replenishing pump 2, the standby water replenishing pump 3, the high-pressure pump 4, the pressure stabilizing pump 5, the water replenishing electromagnetic valve 6, the flow switch sensor 7 and the alarm device 9 through circuits respectively.
The floating ball liquid level sensor comprises an upper limit liquid level sensor 12, a water replenishing liquid level sensor 13, a low liquid level sensor 14 and a lower limit liquid level sensor 15 which are arranged on the side wall of the high-pressure fine water mist water tank 1 at intervals from top to bottom, information transmission ends of the upper limit liquid level sensor 12, the water replenishing liquid level sensor 13, the low liquid level sensor 14 and the lower limit liquid level sensor 15 are respectively connected with an input end of a programmable controller PLC8 through lines, when the water level in the high-pressure fine water mist water tank 1 reaches the state of the upper limit liquid level sensor 12, the programmable controller PLC8 controls a water replenishing main pump 2 and/or a water replenishing standby pump 3 to stop working, after 1s of time delay, the water replenishing electromagnetic valve 6 is controlled to be closed, so that the automatic water replenishing of the high-pressure fine water mist water tank 1 is stopped, when the water level reaches the, when the water level reaches the state of the low liquid level sensor 14, the PLC8 receives a signal, the alarm device 9 is controlled to give an audible and visual alarm to warn a worker to check the reason of the low water level in time, when the water level reaches the state of the lower limit liquid level sensor 15, the PLC8 gives an alarm signal, the alarm device 9 is controlled to give an audible and visual alarm to warn the worker to check the reason of the extremely low water level in time, at the moment, if the high-pressure pump 4 and/or the pressure stabilizing pump 5 are in a stop state, the PLC8 prohibits starting the high-pressure pump 4 and/or the pressure stabilizing pump 5, and if the high-pressure pump 4 and/or the pressure stabilizing pump 5 are in an operation state, the PLC8 controls the high-pressure pump 4 and/or the pressure.
The bottom of the high-pressure water mist water tank 1 is provided with a differential pressure type liquid level transmitter 11 for acquiring water level signals in the high-pressure water mist water tank 1 in real time, an information transmission end of the differential pressure type liquid level transmitter 11 is connected with an input end of a programmable controller PLC8 through a line, signals of the differential pressure type liquid level transmitter 11 and a floating ball liquid level sensor adopt redundant configuration in a programmable controller PLC8, when any one of the signals fails, the programmable controller PLC8 controls an alarm device 9 to give out audible and visual alarm to warn a worker to remove the failure in time, meanwhile, the programmable controller PLC8 logically judges the liquid level state of the high-pressure water mist water tank 1 through the redundant configuration of the liquid level, automatically controls the opening or closing of a valve of a water replenishing electromagnetic valve 6 according to the current liquid level state of the high-pressure water mist water tank 1, and automatically controls the starting or stopping of, and when water is supplemented, if the water supplement main pump 2 fails to start within 5s, the control system automatically switches to control the water supplement standby pump 3 to start so as to keep the high-pressure water mist water tank 1 sufficient for fire fighting water.
The side wall of the high-pressure fine water mist water tank 1 is also provided with a reed pipe liquid level meter 10 for indicating the actual water level of the water tank on site, and the reed pipe liquid level meter is used for indicating the water level of the high-pressure fine water mist water tank 1 on site, so that inspection personnel can check the actual liquid level in the high-pressure fine water mist water tank 1 in time.
The PLC8 is arranged in the control cabinet, and the alarm device 9 is arranged at the top of the control cabinet.
The bottom at high-pressure water mist water tank 1 is equipped with the blow off pipe, be equipped with blowoff valve 20 on the blow off pipe, when high-pressure water mist water tank 1 overhauls, the water of fighting in the evacuation high-pressure water mist water tank 1, be equipped with overflow mouth 19 in the upper end of high-pressure water mist water tank 1 lateral wall, the outlet end of blow off pipe and overflow mouth 19 all is connected with drainage pipe 21, through overflow mouth 19 overflow drainage to drain pipe 21 when the water level of the water of fighting in high-pressure water mist water tank 1 is too high.
And an overhaul valve 18 is arranged on a pipeline between the water inlet ends of the high-pressure pump 4 and the pressure stabilizing pump 5 and the high-pressure water mist water tank 1, and when the high-pressure pump 4 and/or the pressure stabilizing pump 5 break down, the overhaul valve 18 is closed to stop supplying water for the high-pressure pump 4 and the pressure stabilizing pump 5.
The utility model discloses the working process is as follows:
implement the utility model discloses the time, the moisturizing is with the end of intaking of pump 2 and moisturizing spare pump 3 respectively with intake channel 16 being connected, the moisturizing is with the outlet end of pump 2 and moisturizing spare pump 3 all to be connected with high-pressure water mist water tank 1 through moisturizing pipeline, the moisturizing is with pump 2 and/or moisturizing spare pump 3 opening for the owner, it loops through in moisturizing solenoid valve 6 and flow switch sensor 7 back entering high-pressure water mist water tank 1 to intake, high-pressure water mist water tank 1 is connected through the pipeline and the end of intaking of high-pressure pump 4 and stabilized pressure pump 5, the outlet end of high-pressure pump 4 and stabilized pressure pump 5 is connected through outlet pipeline 17 and high-pressure water mist fire extinguisher and is its water supply, the problem that fire extinguishing system that the at utmost reduces the fire-fighting water shortage or the moisturizing pump trouble causes supplies water inadequately, reduce casualties and loss of.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A water tank water level control system for a high-pressure water mist fire extinguishing system is characterized in that: the water replenishing system comprises a high-pressure water mist water tank (1), a water replenishing main pump (2), a water replenishing standby pump (3), a high-pressure pump (4), a pressure stabilizing pump (5), a water replenishing electromagnetic valve (6), a flow switch sensor (7), a floating ball liquid level sensor, a Programmable Logic Controller (PLC) (8) and an alarm device (9), wherein the water replenishing main pump (2) and the water replenishing standby pump (3) are connected in parallel, the water inlet ends of the water replenishing main pump (2) and the water replenishing standby pump (3) are respectively connected with a water inlet pipeline (16), the water outlet ends of the water replenishing main pump (2) and the water replenishing standby pump (3) are respectively connected with the high-pressure water mist water tank (1) through a water replenishing pipeline, the water replenishing electromagnetic valve (6) and the flow switch sensor (7) are sequentially arranged on the water replenishing pipeline along the water inlet direction, the high-pressure pump (4) and the pressure stabilizing pump (5) are connected in parallel, the water inlet ends, the water outlet ends of the high-pressure pump (4) and the pressure stabilizing pump (5) are respectively connected with the high-pressure water mist fire extinguisher through a water outlet pipeline (17), a plurality of floating ball liquid level sensors are arranged on the side wall of the high-pressure water mist water tank (1) at intervals from top to bottom, the information output ends of the floating ball liquid level sensors are respectively connected with the input end of a Programmable Logic Controller (PLC) (8) through a circuit, and the output end of the Programmable Logic Controller (PLC) (8) is respectively connected with a main water replenishing pump (2), a standby water replenishing pump (3), the high-pressure pump (4), the pressure stabilizing pump (5), a water replenishing electromagnetic valve (6), a flow switch sensor (7) and an alarm device (.
2. A tank level control system for a high pressure water mist fire suppression system as recited in claim 1 wherein: the floating ball liquid level sensor comprises an upper limit liquid level sensor (12), a water supplementing liquid level sensor (13), a low liquid level sensor (14) and a lower limit liquid level sensor (15) which are arranged on the side wall of the high-pressure fine water mist water tank (1) at intervals from top to bottom, and information conveying ends of the upper limit liquid level sensor (12), the water supplementing liquid level sensor (13), the low liquid level sensor (14) and the lower limit liquid level sensor (15) are respectively connected with an input end of a Programmable Logic Controller (PLC) (8) through a circuit.
3. A tank level control system for a high pressure water mist fire suppression system as claimed in claim 2, wherein: the bottom of the high-pressure water mist water tank (1) is provided with a differential pressure type liquid level transmitter (11) for acquiring a water level signal in the high-pressure water mist water tank (1) in real time, and an information conveying end of the differential pressure type liquid level transmitter (11) is connected with an input end of a Programmable Logic Controller (PLC) (8) through a circuit.
4. A tank level control system for a high pressure water mist fire suppression system as claimed in claim 2, wherein: the side wall of the high-pressure water mist water tank (1) is also provided with a reed pipe liquid level meter (10) for indicating the actual water level of the water tank on site.
5. A tank level control system for a high pressure water mist fire suppression system as claimed in claim 2, wherein: the programmable logic controller PLC (8) is arranged in the control cabinet, and the alarm device (9) is arranged at the top of the control cabinet.
6. A tank level control system for a high pressure water mist fire suppression system as claimed in claim 2, wherein: the bottom of the high-pressure water mist water tank (1) is provided with a drain pipe, a drain valve (20) is arranged on the drain pipe, the upper end of the side wall of the high-pressure water mist water tank (1) is provided with an overflow port (19), and the drain pipe and the water outlet end of the overflow port (19) are both connected with a drain pipe (21).
7. A tank level control system for a high pressure water mist fire suppression system as claimed in claim 2, wherein: and a maintenance valve (18) is arranged on a pipeline between the water inlet ends of the high-pressure pump (4) and the pressure stabilizing pump (5) and the high-pressure water mist water tank (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021044407.1U CN213049105U (en) | 2020-06-09 | 2020-06-09 | Water tank water level control system for high-pressure water mist fire extinguishing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021044407.1U CN213049105U (en) | 2020-06-09 | 2020-06-09 | Water tank water level control system for high-pressure water mist fire extinguishing system |
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| CN213049105U true CN213049105U (en) | 2021-04-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113856116A (en) * | 2021-09-22 | 2021-12-31 | 万升消防科技有限公司 | High-pressure fine water mist inspection control system and inspection control method based on PLC intelligent control |
| CN114158944A (en) * | 2021-08-31 | 2022-03-11 | 佛山市顺德区美的饮水机制造有限公司 | Multifunctional drinking machine |
-
2020
- 2020-06-09 CN CN202021044407.1U patent/CN213049105U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114158944A (en) * | 2021-08-31 | 2022-03-11 | 佛山市顺德区美的饮水机制造有限公司 | Multifunctional drinking machine |
| CN113856116A (en) * | 2021-09-22 | 2021-12-31 | 万升消防科技有限公司 | High-pressure fine water mist inspection control system and inspection control method based on PLC intelligent control |
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