CN110926233B - Voltage stabilizing device for high-pressure water mist throttling system and voltage stabilizing control method thereof - Google Patents
Voltage stabilizing device for high-pressure water mist throttling system and voltage stabilizing control method thereof Download PDFInfo
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- CN110926233B CN110926233B CN201911227647.7A CN201911227647A CN110926233B CN 110926233 B CN110926233 B CN 110926233B CN 201911227647 A CN201911227647 A CN 201911227647A CN 110926233 B CN110926233 B CN 110926233B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/06—Spray nozzles or spray pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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Abstract
The invention belongs to the technical field of tail gas treatment, and particularly relates to a pressure stabilizing device for a high-pressure water mist throttling system and a pressure stabilizing control method thereof, wherein a hydraulic system of the pressure stabilizing device consists of a high-speed switch valve bank, the pressure stabilizing device comprises the high-speed switch valve bank and a processing unit, the high-speed switch valve group comprises four two-position two-way high-speed switch valves which are connected in parallel, the signal input end of a processing unit is in signal connection with the output end of a pressure transmitter and the output end of a temperature sensor, the signal input end of a controller is in signal connection with the signal output end of the processing unit, and the controller is electrically connected with a high-pressure unloading electromagnetic valve group and the high-speed switch valve group respectively.
Description
Technical Field
The invention belongs to the technical field of tail gas treatment, and particularly relates to a pressure stabilizing device for a high-pressure water mist throttling system and a pressure stabilizing control method thereof.
Background
In the high-pressure water mist throttling system, the fine water particles sprayed out through the special nozzle need to absorb a large amount of heat from the environment in the vaporization process, so that the temperature of the surrounding environment can be reduced, and the high-pressure water mist throttling system is widely applied to various cooling systems due to high-efficiency cooling.
The high-pressure water mist throttling system comprises a high-pressure water mist throttling system, the high-pressure water mist throttling system comprises a water pool, a water replenishing pump, a water tank, a booster pump, a pressure transmitter, an overflow valve, a safety valve, a manual high-pressure unloading electromagnetic valve, a high-pressure unloading electromagnetic valve, nozzles, a tail pipe, a temperature sensor and a system high-pressure pipeline, the pressure in the system is kept stable by pressurizing water to a set value and adjusting the overflow valve, then high-pressure water is sent to each nozzle of the high-pressure water mist throttling system to be sprayed out to absorb heat and cool, however, in the actual working process of the high-pressure water mist throttling system, water is sent to each nozzle after being pressurized, pressure values in the system pipeline indicated by a pressure gauge are actually inconsistent due to different quantity of the opened nozzles, the pressure change situation in the system pipeline is obtained through test verification and is shown in figure 1, under, after closing one nozzle, the system pressure rises from 9MPa to 9.8MPa, then after closing one nozzle, the system pressure continues to rise from 9.8MPa to 10.6MPa, when all three nozzles are closed, the system pressure rises to 11.2MPa, and when the number of the opened nozzles is smaller, the pressure value in the system pipeline is higher, the reason is that the switch of the overflow valve has hysteresis, and the hysteresis is larger than the rise value of the system pressure caused by the closing of the nozzles, so that the overflow valve cannot be normally opened to set the system pipeline pressure, the set optimal water atomization pressure cannot be kept stable, the load in the system pipeline and each valve is increased, and the stability and the safety of the device are insufficient.
Disclosure of Invention
The purpose of the invention is: the pressure stabilizing device and the pressure stabilizing control method thereof aim at providing the pressure stabilizing device for the high-pressure water mist throttling system to solve the problems that the pressure inside a pipeline of the existing high-pressure water mist throttling system cannot be kept stable, the load inside the pipeline of the system and each valve is increased, and the stability and the safety of the device are insufficient.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a pressure stabilizing device for a high-pressure water mist throttling system and a pressure stabilizing control method thereof are provided, the pressure stabilizing device is connected with the high-pressure water mist throttling system, the high-pressure water mist throttling system comprises a water pool, a water replenishing pump, a water tank, a booster pump, a pressure transmitter, an overflow valve, a safety valve, a manual high-pressure unloading electromagnetic valve, a flowmeter, a high-pressure unloading electromagnetic valve, a nozzle, a tail pipe, a temperature sensor and a system high-pressure pipeline, the hydraulic system of the pressure stabilizing device consists of a high-speed switch valve bank, the inlet end of the high-speed switch valve bank is connected to the system high-pressure pipeline, the outlet end of the high-speed switch valve bank is connected to the water tank, the pressure stabilizing device comprises a high-speed switch valve bank, a processing unit, a controller, a display unit and a hydraulic integrated valve block, the high-, the signal input end of the controller is in signal connection with the signal output end of the processing unit, and the controller is electrically connected with the high-pressure unloading electromagnetic valve bank and the high-speed switch valve bank.
By adopting the technical scheme of the invention, the temperature sensor is in signal connection with the processing unit, and the processing unit is in signal connection with the controller, so that the temperature condition in the tail pipe can be monitored and fed back in real time; the controller is electrically connected with the high-pressure unloading electromagnetic valve, so that when the internal temperature of the tail pipe is overhigh, the high-pressure unloading electromagnetic valve can be opened to spray high-pressure water mist out through the nozzle to cool the high-temperature flue gas; the pressure transmitter is in signal connection with the processing unit, and the processing unit is in signal connection with the controller, so that the pressure condition in the system pipeline can be monitored and fed back in real time; the controller is electrically connected with the high-speed switch valve group, and can regulate pressure by controlling the opening and closing time of a high-speed switch valve of the high-speed switch valve group when the pressure in the system pipeline changes, so that the switch hysteresis of the overflow valve is compensated, controlled and regulated, the pressure in the system pipeline is stabilized at a set pressure value, and the stability and the safety of the device are greatly improved; the display unit can display the internal pressure information of the system pipeline and the temperature information of the inlet end and the outlet end of the tail pipe in real time, so that the artificial viewing and monitoring are facilitated; the invention solves the problems that the pressure in the pipeline of the existing high-pressure water mist throttling system can not be kept stable, so that the load in the pipeline of the system and each valve is increased, and the stability and the safety of the device are insufficient.
Further limited, the pressure transmitter is arranged on a system high-pressure pipeline between the booster pump and the overflow valve. The structure enables the pressure transmitter to monitor the pressure inside the system pipeline in real time and feed the result back to the processing unit for processing.
Further limit, the temperature sensor quantity is two, two the temperature sensor is installed respectively in tail pipe flue gas inlet end and flue gas outlet end. With the structure, the temperature sensor can monitor the temperature change before and after the temperature of the two sides of the tail pipe is reduced in real time and feed the result back to the processing unit for processing.
Further defined, the nozzle is mounted inside the tailpipe. With the structure, the nozzle can spray high-pressure water mist to cool high-temperature flue gas discharged from the tail pipe.
Further, the pressure stabilizer is arranged on a hydraulic pipeline between the manual high-pressure unloading electromagnetic valve and the flowmeter. With such a structure, the device has a reasonable structure, and the flowmeter can accurately measure the flow actually sent to the nozzle.
Further defined, the high-speed switch valve group is installed on a hydraulic integrated valve block. By the structure, the voltage stabilizer has a compact structure and is convenient to be connected to an original system.
A voltage stabilization control method for a voltage stabilizer of a high-pressure water mist throttling system comprises the following steps:
A) the temperature sensor and the pressure transmitter at the flue gas inlet end of the tail pipe feed back the temperature of the tail pipe and the system pressure to the processing unit in real time;
B) the processing unit feeds back the temperature signal and the pressure signal to the controller, and the controller transmits the temperature signal and the pressure signal to the display unit for displaying, and the following judgment is carried out:
firstly, when the temperature of the tail pipe is in a normal set range, the controller only displays real-time data through a display unit;
when the temperature of the tail pipe exceeds a set range, the controller makes a decision according to the temperature exceeding value, and rapidly opens a corresponding number of nozzles to cool;
C) the pressure transmitter monitors the pressure change of the system in real time, feeds a system pressure value back to the processing unit for processing, and then sends a signal to the controller, the controller adjusts the opening and closing time of the high-speed switch valve in real time according to the system pressure value, so that the system pressure is quickly reduced to a set value, and the system pressure can be displayed in real time through the display unit in the adjusting process;
D) when the temperature of the tail pipe is reduced to a set range, the temperature sensor at the flue gas outlet end of the tail pipe feeds the temperature of the tail pipe back to the processing unit, the pressure sensor feeds the system pressure value back to the processing unit, the processing unit feeds the temperature signal and the pressure signal back to the controller, and the controller transmits the temperature signal and the pressure signal to the display unit for displaying and automatically closes the high-pressure unloading electromagnetic valve to close the nozzle and automatically close the high-speed switch valve bank respectively.
Further, the processing unit is a digital signal processor.
Further, the display unit displays the system feedback parameters in real time. By the structure, the temperature, the pressure and other information of the device can be quickly checked by workers, and manual monitoring is facilitated.
Compared with the prior art, the invention has the following advantages:
1. the temperature of the tail pipe and the pressure of the high-pressure water mist throttling system are automatically kept at set values by utilizing temperature closed-loop and pressure closed-loop control;
2. the high-speed switch valve group can be quickly opened or closed, so that the switch hysteresis of an overflow valve and a high-pressure unloading electromagnetic valve of the system is compensated, and the opening and closing time of the high-speed switch valve is controlled by the controller, so that the real-time adjustment of the system pressure can be realized;
3. the on-off state of the high-speed switch valve bank can be conveniently controlled through the hydraulic integrated valve block.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a graph of the results of a pressure change test of the interior of a system pipe of a high pressure water mist throttling system with different numbers of nozzles closed;
FIG. 2 is a schematic structural diagram of an embodiment of a pressure stabilizing device for a high-pressure water mist throttling system and a pressure stabilizing control method thereof according to the invention;
FIG. 3 is a schematic diagram of a flue gas temperature regulation process of an embodiment of a pressure stabilizer and a pressure stabilization control method thereof for a high-pressure water mist throttling system according to the invention;
FIG. 4 is a schematic view of the process of regulating the internal pressure of the system pipeline according to the embodiment of the pressure stabilizing device and the pressure stabilizing control method for the high-pressure water mist throttling system of the invention;
FIG. 5 is a schematic structural diagram of a pressure stabilizer of an embodiment of the pressure stabilizer and a pressure stabilization control method thereof for the high-pressure water mist throttling system according to the invention;
FIG. 6 is a schematic view of the mounting structure of a high-speed switch valve and a hydraulic integrated valve block of the embodiment of the pressure stabilizing device for the high-pressure water mist throttling system and the pressure stabilizing control method thereof according to the invention;
FIG. 7 is a comparison graph of the effects before and after pressure stabilization and reduction of the interior of a system pipeline by using the pressure stabilizing device for the high-pressure water mist throttling system and the pressure stabilizing control method thereof according to the embodiment of the invention;
the main element symbols are as follows:
the device comprises a water pool 1, a water replenishing pump 2, a water tank 3, a booster pump 4, a pressure transmitter 5, an overflow valve 6, a safety valve 7, a manual high-pressure unloading electromagnetic valve 8, a flowmeter 9, a high-pressure unloading electromagnetic valve 10, a nozzle 11, a tail pipe 12, a temperature sensor 13, a high-speed switch valve group 14, a processing unit 15, a controller 16, a display unit 17 and a hydraulic integrated valve block 18.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
As shown in fig. 2-6, the pressure stabilizer for a high-pressure water mist throttling system and a pressure stabilizing control method thereof of the invention, the pressure stabilizer is connected with the high-pressure water mist throttling system, the high-pressure water mist throttling system comprises a water pool 1, a water replenishing pump 2, a water tank 3, a booster pump 4, a pressure transmitter 5, an overflow valve 6, a safety valve 7, a manual high-pressure unloading electromagnetic valve 8, a flowmeter 9, a high-pressure unloading electromagnetic valve 10, a nozzle 11, a tail pipe 12, a temperature sensor 13 and a system high-pressure pipeline, the hydraulic system of the pressure stabilizer is composed of a high-speed switch valve bank 14, the inlet end of the high-speed switch valve bank 14 is connected to the system high-pressure pipeline, the outlet end of the high-speed switch valve bank is connected to the water tank 3, the pressure stabilizer comprises a high-speed switch valve bank 14, a processing unit 15, the signal input end of the processing unit 15 is respectively in signal connection with the output end of the pressure transmitter 5 and the output end of the temperature sensor 13, the signal input end of the controller 16 is in signal connection with the signal output end of the processing unit 15, and the controller 16 is electrically connected with the high-pressure unloading electromagnetic valve group 10 and the high-speed switch valve group 14.
By adopting the technical scheme of the invention, the temperature sensor 13 is in signal connection with the processing unit 15, and the processing unit 15 is in signal connection with the controller 16, so that the temperature condition in the tail pipe 12 can be monitored and fed back in real time; the controller 16 is electrically connected with the high-pressure unloading electromagnetic valve 10, so that when the internal temperature of the tail pipe 12 is too high, high-pressure water mist is sprayed out through the nozzle 11 by opening the high-pressure unloading electromagnetic valve 10 to cool the high-temperature flue gas; the pressure transmitter 5 is in signal connection with the processing unit 15, and the processing unit 15 is in signal connection with the controller 16, so that the pressure condition in the system pipeline can be monitored and fed back in real time; the controller 16 is electrically connected with the high-speed switch valve group 14, and can regulate pressure by controlling the opening and closing time of the high-speed switch valve group 14 when the internal pressure of the system pipeline changes, so that the switch hysteresis of the overflow valve 6 is compensated, controlled and regulated, the internal pressure of the system pipeline is stabilized at a set pressure value, and the stability and the safety of the device are greatly improved; the display unit 17 can display the pressure information in the system pipeline and the temperature information of the inlet end and the outlet end of the tail pipe 12 in real time, so that the artificial viewing and monitoring are facilitated; the invention solves the problems that the pressure in the pipeline of the existing high-pressure water mist throttling system can not be kept stable, so that the load in the pipeline of the system and each valve is increased, and the stability and the safety of the device are insufficient.
Preferably, the pressure transmitter 5 is installed in the system high-pressure line between the booster pump 4 and the relief valve 6. Such a configuration enables the pressure transmitter 5 to monitor the pressure inside the system pipe in real time and feed the results back to the processing unit 15 for processing.
Preferably, the number of the temperature sensors 13 is two, and the two temperature sensors 13 are respectively installed at the flue gas inlet end and the flue gas outlet end of the tail pipe 12. With such a configuration, the temperature sensor 13 can monitor the temperature change before and after the temperature decrease of the two sides of the tail pipe 12 in real time and feed the result back to the processing unit 15 for processing.
Preferably, the nozzle 11 is installed inside the tail pipe 12. With such a structure, the nozzle 11 can spray high-pressure water mist to cool the high-temperature flue gas discharged from the tail pipe 12.
Preferably, the pressure stabilizer is installed on the hydraulic pipeline between the manual high-pressure unloading electromagnetic valve 8 and the flowmeter 9. With such a structure, the device structure is reasonable, and the flow meter 9 can accurately measure the flow rate actually supplied to the nozzle.
Preferably, the high speed switching valve block 14 is mounted to a hydraulic manifold block 18. By the structure, the voltage stabilizer has a compact structure and is convenient to be connected to an original system.
A voltage stabilization control method for a voltage stabilizer of a high-pressure water mist throttling system comprises the following steps:
A) the temperature sensor 13 and the pressure transmitter 5 at the flue gas inlet end of the tail pipe 12 feed back the tail pipe temperature and the system pressure to the processing unit 15 in real time;
B) the processing unit 15 feeds back the temperature signal and the pressure signal to the controller 16, and the controller 16 transmits the signals to the display unit 17 for display, and the following judgment is made:
firstly, when the temperature of the tail pipe is in a normal set range, the controller 16 only displays the real-time data through the display unit 17;
secondly, when the temperature of the tail pipe exceeds a set range, the controller 16 makes a decision according to the temperature exceeding value, and rapidly opens the corresponding number of nozzles 11 to cool;
C) the pressure transmitter 5 monitors the pressure change of the system in real time, feeds the system pressure value back to the processing unit 15 for processing, and then sends a signal to the controller 16, the controller 16 adjusts the opening and closing time of the high-speed switch valve in real time according to the system pressure value, so that the system pressure is quickly reduced to a set value, and the system pressure can be displayed in real time through the display unit 17 in the adjusting process;
D) when the temperature of the tail pipe is reduced to a set range, the temperature sensor 13 at the flue gas outlet end of the tail pipe 12 feeds the tail pipe temperature back to the processing unit 15, the pressure sensor 7 feeds the system pressure value back to the processing unit 15, the processing unit 15 feeds the temperature signal and the pressure signal back to the controller 16, and the controller 16 transmits the system pressure value and the system pressure value to the display unit 17 for displaying and automatically closing the high-pressure unloading electromagnetic valve 10 to close the nozzle 11 and automatically close the high-speed switch valve bank 14 respectively.
Preferably, the processing unit 15 is a digital signal processor.
Preferably, the display unit 17 displays the system feedback parameters in real time. By the structure, the temperature, the pressure and other information of the device can be quickly checked by workers, and manual monitoring is facilitated.
As shown in FIG. 7, after experimental verification, the internal pressure of the high-pressure water mist throttling system pipeline is obviously reduced after the internal pressure of the high-pressure water mist throttling system pipeline is stabilized and reduced by adopting the pressure stabilizing device and the pressure stabilizing control method, when one nozzle is closed, the internal pressure of the system pipeline is reduced from the original 9.8MPa to 9MPa, after two nozzles are closed, the internal pressure of the system pipeline is reduced from the original 10.6MPa to 9MPa, and after all three nozzles are closed, the internal pressure of the system pipeline is reduced from the original 11.2MPa to 9MPa, so that the internal pressure of the system pipeline is kept constant, the pressure stabilizing and reducing effects are good, the safe operation of the high-pressure water mist throttling system is ensured, and the pressure stabilizing device and the pressure reducing control method have great significance.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a voltage regulator device for thin water smoke throttle system of high pressure, voltage regulator device is connected with the thin water smoke throttle system of high pressure, the thin water smoke throttle system of high pressure includes pond (1), moisturizing pump (2), water tank (3), booster pump (4), pressure transmitter (5), overflow valve (6), relief valve (7), manual high pressure off-load solenoid valve (8), flowmeter (9), high pressure off-load solenoid valve (10), nozzle (11), tail pipe (12), temperature sensor (13) and system high-pressure line, its characterized in that: the hydraulic system of the pressure stabilizing device is composed of a high-speed switch valve bank (14), the inlet end of the high-speed switch valve bank (14) is connected to a system high-pressure pipeline, the outlet end of the high-speed switch valve bank is connected to a water tank (3), the pressure stabilizing device comprises the high-speed switch valve bank (14), a processing unit (15), a controller (16), a display unit (17) and a hydraulic integrated valve block (18), the high-speed switch valve bank (14) is formed by connecting four two-position two-way high-speed switch valves in parallel, the signal input end of the processing unit (15) is respectively connected with the output end of a pressure transmitter (5) and the output end of a temperature sensor (13) in a signal mode, the signal input end of the controller (16) is connected with the signal output end of the processing unit (15), and the controller (16.
2. The pressure stabilizing device for the high-pressure water mist throttling system according to claim 1, characterized in that: and the pressure transmitter (5) is arranged on a system high-pressure pipeline between the booster pump (4) and the overflow valve (6).
3. The pressure stabilizing device for the high-pressure water mist throttling system according to claim 1, characterized in that: the number of the temperature sensors (13) is two, and the two temperature sensors (13) are respectively arranged at the smoke inlet end and the smoke outlet end of the tail pipe (12).
4. The pressure stabilizing device for the high-pressure water mist throttling system according to claim 1, characterized in that: the nozzle (11) is arranged in the tail pipe (12).
5. The pressure stabilizing device for the high-pressure water mist throttling system according to claim 1, characterized in that: the pressure stabilizing device is arranged on a hydraulic pipeline between the manual high-pressure unloading electromagnetic valve (8) and the flowmeter (9).
6. The pressure stabilizing device for the high-pressure water mist throttling system according to claim 1, characterized in that: the high-speed switch valve group (14) is arranged on a hydraulic integrated valve block (18).
7. The method for controlling the pressure stabilization of the pressure stabilizing device of the high-pressure water mist throttling system according to any one of claims 1 to 6, characterized in that: the voltage stabilization control method comprises the following steps:
A) a temperature sensor (13) and a pressure transmitter (5) at the flue gas inlet end of a tail pipe (12) feed back the temperature and the system pressure of the tail pipe to a processing unit (15) in real time;
B) the processing unit (15) feeds back the temperature signal and the pressure signal to the controller (16), and the controller (16) transmits the temperature signal and the pressure signal to the display unit (17) for display and makes the following judgments:
firstly, when the temperature of the tail pipe is in a normal set range, the controller (16) only displays real-time data through the display unit (17);
when the temperature of the tail pipe exceeds a set range, the controller (16) makes a decision according to the temperature exceeding value, and rapidly opens the corresponding number of nozzles (11) to cool;
C) the pressure transmitter (5) monitors the pressure change of the system in real time, feeds a system pressure value back to the processing unit (15) for processing, and then sends a signal to the controller (16), the controller (16) adjusts the opening and closing time of the high-speed switch valve in real time according to the system pressure value, so that the system pressure is quickly reduced to a set value, and the system pressure can be displayed in real time through the display unit (17) in the adjusting process;
D) when the temperature of the tail pipe is reduced to a set range, the temperature sensor (13) at the smoke outlet end of the tail pipe (12) feeds the temperature of the tail pipe back to the processing unit (15), the pressure sensor 7 feeds the system pressure value back to the processing unit (15), the processing unit (15) feeds the temperature signal and the pressure signal back to the controller (16), and the controller (16) transmits the temperature signal and the pressure signal to the display unit (17) for displaying and automatically closes the high-pressure unloading electromagnetic valve (10) to close the nozzle (11) and automatically close the high-speed switch valve bank (14).
8. The pressure stabilizing control method of the pressure stabilizing device for the high-pressure water mist throttling system according to claim 7, characterized in that: the processing unit (15) is a digital signal processor.
9. The pressure stabilizing control method of the pressure stabilizing device for the high-pressure water mist throttling system according to claim 7, characterized in that: and the display unit (17) displays the system feedback parameters in real time.
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| CN201911227647.7A CN110926233B (en) | 2019-12-04 | 2019-12-04 | Voltage stabilizing device for high-pressure water mist throttling system and voltage stabilizing control method thereof |
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| CN201911227647.7A CN110926233B (en) | 2019-12-04 | 2019-12-04 | Voltage stabilizing device for high-pressure water mist throttling system and voltage stabilizing control method thereof |
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| CN112031901B (en) * | 2020-08-10 | 2021-09-07 | 中国人民解放***箭军工程大学 | Control system and control method for high-pressure water mist smoke-eliminating and temperature-reducing device |
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| EP1221330A1 (en) * | 2001-01-09 | 2002-07-10 | Aristide Kaidonis | Device using water mist to protect a tunnel shelter against the effects of a fire |
| CN1190244C (en) * | 2002-06-11 | 2005-02-23 | 浙江大学 | High-pressure water-spraying autoamtic extinguishing system characterized by pure water hydraulic component |
| CN1939557A (en) * | 2005-09-30 | 2007-04-04 | 范荗荣 | Automatic high-pressure fine spray extinguisher |
| CN102228734A (en) * | 2011-04-11 | 2011-11-02 | 江苏龙力神精工科技有限公司 | Automatic pressure reduction pressure stabilization type fast hydraulic indoor fire hydrant |
| CN102423527B (en) * | 2011-08-30 | 2014-05-14 | 苏州辰泰鸿业安全技术有限公司 | Variable frequency high pressure water mist automatic fire extinguisher |
| CN202608027U (en) * | 2012-02-24 | 2012-12-19 | 上海大学 | Pneumatic supply device based on fast switching valve |
| CN106943699A (en) * | 2017-04-07 | 2017-07-14 | 天津神封科技发展有限公司 | High-pressure aerial fog linkage automatic fire extinguishing system |
| CN207186956U (en) * | 2017-06-21 | 2018-04-06 | 上海以宽机电工程技术有限公司 | A kind of offshore platform special high-pressure water mists automatic fire extinguishing system |
| CN109381825A (en) * | 2017-08-07 | 2019-02-26 | 南京消防器材股份有限公司 | Bottle group type fine water mist fire-extinguishing system |
| CN107823821B (en) * | 2017-12-07 | 2023-01-13 | 国网湖南省电力有限公司 | Water mist fire extinguishing system capable of accurately mixing fire extinguishing liquid in real time and application method thereof |
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