CN212327280U - Foam spraying fire extinguishing system that factor of safety is high - Google Patents
Foam spraying fire extinguishing system that factor of safety is high Download PDFInfo
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- CN212327280U CN212327280U CN202020221299.4U CN202020221299U CN212327280U CN 212327280 U CN212327280 U CN 212327280U CN 202020221299 U CN202020221299 U CN 202020221299U CN 212327280 U CN212327280 U CN 212327280U
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Abstract
The utility model relates to a foam spraying fire extinguishing systems that factor of safety is high, it includes fire extinguishing systems, control system, fire alarm monitoring system, pressure detector and converter, pressure detector is fixed to be set up fire extinguishing systems is last, pressure detector sends resistance signal the converter, the converter sends after turning into current signal resistance signal control system's industrial computer. Can carry out pressure monitoring to high-pressure nitrogen cylinder through pressure detector, guarantee the normal use of equipment, realize the safety monitoring to the gas district, avoid because of setting up the potential safety hazard that high-pressure nitrogen cylinder caused, monitor the foam storage tank through pressure detector simultaneously, avoid spouting the phenomenon because of the mistake that foam storage tank pressure is too high and cause, cause the waste of fire extinguishing agent, improved the stability of system.
Description
Technical Field
The utility model relates to a fire-fighting equipment technical field of transformer substation, concretely relates to foam spraying fire extinguishing systems that factor of safety is high.
Background
Foam spraying fire extinguishing is generally implemented by firstly taking premixed foam liquid as a fire extinguishing agent to be stored in a storage tank, when a fire disaster happens, starting a power source to convey the foam liquid out, and atomizing and foaming the foam liquid through an atomizing nozzle to extinguish the fire. The fire extinguishing agent required by the foam spraying fire extinguishing system is stored in the liquid storage tank, and water and gas are not required to be supplied during fire extinguishing, so that the superiority of the foam spraying fire extinguishing system can be better reflected when the foam spraying fire extinguishing system is used in places without water source supply, and the foam spraying fire extinguishing system is likely to cause high-pressure gas in a power bottle to leak due to long-term air leakage in the long-term storage process, so that the air pressure in the bottle is reduced, and the foam extinguishing agent cannot be pressed out by depending on the air pressure in the bottle when a fire disaster occurs, so that the use of equipment is influenced; in addition, because the system is driven by high-pressure gas, if the gas area and equipment cannot be well monitored, potential safety hazards are brought by the system.
Disclosure of Invention
In order to solve the problem, the utility model provides a foam spraying fire extinguishing system that factor of safety is high, system design is reasonable, and application scope is wide, safe and reliable
The utility model relates to a foam spraying fire extinguishing system with high safety factor, which comprises a fire extinguishing system, a control system and a fire monitoring system, wherein the fire monitoring system sends monitoring signals to the control system, and the control system processes the signals sent by the fire monitoring system and controls the on-off of the fire extinguishing system according to a program preset in advance by the system; the fire-fighting system is characterized by further comprising a pressure detector and a converter, wherein the pressure detector is fixedly arranged on the fire-fighting system, the pressure detector sends a resistance signal to the converter, and the converter converts the resistance signal into a current signal and then sends the current signal to an industrial personal computer of the control system.
Preferably, the pressure detector is an axial stainless steel shock-proof electric contact pressure gauge with edges, and the maximum measuring range of the electric contact pressure gauge is 20-30 Mpa.
Preferably, the current signal sent by the converter is 4-20 mA.
Preferably, the fire extinguishing system includes foam storage tank and high-pressure nitrogen gas bottle, the gas outlet of high-pressure nitrogen gas bottle pass through the blast pipe with the gas inlet intercommunication of foam storage tank be equipped with first control valve and first flowmeter on the blast pipe, the leakage fluid dram of foam storage tank with the fire control house steward intercommunication be equipped with second control valve and second flowmeter on the fire control house steward be equipped with first pressure detector on the high-pressure nitrogen gas bottle be equipped with second pressure detector on the foam storage tank.
Preferably, the first pressure detector and the second pressure detector are connected with an industrial personal computer (PLC) of the control system through a shielding compensation line.
Preferably, the fire alarm monitoring system comprises a linear temperature-sensing detector, a temperature probe detector and a main transformer three-side switch processor, wherein the linear temperature-sensing detector is wound on the transformer, the temperature probe detector is fixedly installed in the transformer, and the main transformer three-side switch processor is fixedly installed on a power supply of the transformer.
Preferably, control system includes industrial computer, valves and alarm device, the signal output part of industrial computer with the valves with alarm device's signal input part intercommunication, the signal input part of industrial computer with fire alarm monitoring system with the signal output part intercommunication of converter.
Preferably, the control valve group comprises a first control valve, a second control valve, an air supply valve, an exhaust valve and at least one partition control valve, wherein the air supply valve is arranged on an air supply pipeline of the high-pressure nitrogen cylinder, the exhaust valve is arranged on an exhaust pipe of the foam storage tank, and the partition control valve is arranged on each fire branch pipe communicated with the fire main pipe.
Preferably, a manual valve is arranged beside each electric control valve in the control valve group.
The utility model has the advantages that: pressure detector through this system can carry out pressure monitoring to high-pressure nitrogen cylinder, has guaranteed the normal use of equipment, has realized the safety monitoring to the gas district, avoids because of setting up the potential safety hazard that high-pressure nitrogen cylinder caused, monitors the foam storage tank through pressure detector simultaneously, avoids spouting the phenomenon because of the mistake that foam storage tank pressure is too high and cause, causes the waste of fire extinguishing agent, has improved the stability of system.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic diagram of signal connection according to an embodiment of the present invention;
the fire-fighting system comprises a fire-fighting system 1, a control system 2, a fire alarm monitoring system 3, a pressure detector 4, a converter 5, an industrial personal computer 6, a foam storage tank 7, a high-pressure nitrogen cylinder 8, an exhaust pipe 9, a first control valve 10, a first flowmeter 11, a fire main pipe 12, a second control valve 13, a second flowmeter 14, a first pressure detector 15, a second pressure detector 16, a shielding compensation line 17, a linear temperature-sensing detector 18, a temperature probe detector 19, a main transformer three-side switch processor 20, a transformer 21, a control valve bank 22, an alarm device 23, an air supplementing valve 24, an exhaust valve 25, a partition control valve 26 and a manual valve 27.
Detailed Description
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The present invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1-2, a foam spray fire extinguishing system with high safety factor comprises a fire extinguishing system 1, a control system 2 and a fire monitoring system 3, wherein the fire monitoring system 3 sends monitoring signals to the control system 2, and the control system 2 processes the signals sent by the fire monitoring system 3 and controls the on/off of the fire extinguishing system 1 according to a program preset in advance by the system; the fire-fighting protection system further comprises a pressure detector 4 and a converter 5, wherein the pressure detector 4 is fixedly arranged on the fire-fighting system 1, the pressure detector 4 sends a resistance signal to the converter 5, and the converter 5 converts the resistance signal into a current signal and then sends the current signal to an industrial personal computer 6 of the control system 2. The pressure detector 4 is an axial stainless steel shock-proof electric contact pressure gauge with edges, the maximum measuring range is 20-30Mpa, and a 25Mpa small-sized electric contact pressure gauge of Huaian Diesen instruments Co., Ltd is preferred; the current signal sent by the converter 5 is 4-20 mA. The fire fighting system 1 comprises a foam storage tank 7 and a high-pressure nitrogen cylinder 8, wherein a gas outlet of the high-pressure nitrogen cylinder 8 is communicated with a gas inlet of the foam storage tank 7 through an exhaust pipe 9, a first control valve 10 and a first flowmeter 11 are arranged on the exhaust pipe 9, a liquid discharge port of the foam storage tank 7 is communicated with a fire main pipe 12, a second control valve 13 and a second flowmeter 14 are arranged on the fire main pipe 12, the first control valve 10 and the second control valve 13 are connected with a signal output end of an industrial personal computer 6, and the first flowmeter 11 and the second flowmeter 14 are communicated with a signal input end of the industrial personal computer 6; the high-pressure nitrogen cylinder 8 is provided with a first pressure detector 15, and the foam storage tank 7 is provided with a second pressure detector 16. The first pressure detector 15 and the second pressure detector 16 are connected with the industrial personal computer 6 of the control system 2 through a shielding compensation line 17, and the shielding compensation line 17 can effectively prevent electromagnetic interference in the transformer 21, so that monitoring signals can be accurately uploaded; according to the GA 834-2009 requirement, the pressure requirement with nitrogen as a power source is 8MPa-15MPa, when the industrial personal computer 6 receives pressure data sent by the first pressure detector 15 and is lower than 8Mp or higher than 15Mpa, the industrial personal computer 6 sends a signal to the alarm device 23, the alarm device 23 starts an alarm, an operator visits a designated site to perform patrol, when the site patrol personnel find that the pressure of the high-pressure nitrogen cylinder 8 is lower than the set pressure, the pressure needs to be supplemented to the nitrogen cylinder 8, when the site patrol personnel find that the pressure of the high-pressure nitrogen cylinder 8 is higher than the set pressure, the pressure needs to be released to the high-pressure nitrogen cylinder 8, and when the patrol personnel find that the first pressure detector 15 reports by mistake, the fire fighter is informed to maintain or replace the equipment; according to the GA 834-2009 requirement, the pressure requirement when the foam storage tank 7 is not used is 0MPa, when the pressure data received by the industrial personal computer 6 and sent by the second pressure detector 16 is not equal to OMPa, the industrial personal computer 6 sends a signal to the alarm device 23, the alarm device 23 starts alarming, an operator visits a specified site to carry out patrol, the site patrol personnel opens the exhaust port of the foam storage tank 7 to release pressure, and when the patrol personnel find that the second pressure detector 16 is mistakenly reported, the fire fighting manufacturer personnel are informed to maintain or replace the equipment. The fire alarm monitoring system 3 comprises a linear temperature-sensing detector 18, a temperature probe detector 19 and a main transformer three-side switch processor 20, wherein the linear temperature-sensing detector 18 is wound on a transformer 21, the temperature probe detector 19 is fixedly installed in the transformer 21, and the main transformer three-side switch processor 20 is fixedly installed on a power supply of the transformer 21. The control system 2 comprises an industrial personal computer 6, a control valve group 22 and an alarm device 23, and the signal output end of the industrial personal computer 6 is communicated with the signal input ends of the control valve group 22 and the alarm device 23. The signal input part of industrial computer 6 communicates with the signal output part of fire alarm monitoring system 3 and converter 5, the switch valve group 22 includes first control valve 10, second control valve 13, aeration valve 24, discharge valve 25, fire control main valve 26 and three subregion control valve 27, aeration valve 24 sets up on the aeration pipeline of high-pressure nitrogen cylinder 8, discharge valve 25 sets up on the blast pipe of foam storage tank 7, fire control main valve 26 sets up on fire main pipe 12, subregion control valve 26 sets up on every fire branch pipe that communicates with fire main pipe 12. A manual valve 27 is provided adjacent each electrically controlled valve in the control valve block 22, and when any electrically controlled valve in the control valve block 22 fails, the system can be activated by the manual valve 27. When the industrial personal computer 6 receives a fire alarm signal sent by a single detector in the fire monitoring system 3, the system enters a fire warning state, patrols personnel to check the fire on site, if false alarm is found, the detector is cut off and maintenance is reported after the reason is checked, when the industrial personal computer 6 receives the fire alarm signal sent by a plurality of detectors at the same position in the fire monitoring system 3, the industrial personal computer 6 controls the main transformer three-side switch processor 20 to cut off the power supply of the transformer 21, after the power failure is finished, the industrial personal computer 6 controls the first control valve 10, the second control valve 13 and the partition control valve 26 corresponding to the alarm partition to be opened, nitrogen in the high-pressure nitrogen bottle 8 enters the foam storage tank 7 through the exhaust pipe 9, the premixed foam fire extinguisher in the foam storage tank 7 is sent into a pipeline to extinguish fire through the fire nozzle of the fire partition, and after the fire extinguishment is finished, the first control valve 10, the second control, The second control valve 13 corresponds to a zone control valve 26 of the alarm zone; in the fire extinguishing process, if the industrial personal computer 6 correspondingly controls the opening degrees of the first control valve 10 and the second control valve 13 according to the feedback signals of the first flow meter 11 and the second flow meter 12, after the fire extinguishing is finished, whether the closing of the corresponding valves is finished or not can be judged according to the feedback signals of the first flow meter 11 and the second flow meter 12.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A foam spray fire extinguishing system with high safety factor comprises a fire extinguishing system, a control system and a fire monitoring system, wherein the fire monitoring system sends monitoring signals to the control system, and the control system processes the signals sent by the fire monitoring system and controls the on-off of the fire extinguishing system according to a program preset in advance by the system; the fire-fighting control system is characterized by further comprising a pressure detector and a converter, wherein the pressure detector is fixedly arranged on the fire-fighting system, the pressure detector sends a resistance signal to the converter, and the converter converts the resistance signal into a current signal and then sends the current signal to an industrial personal computer of the control system.
2. The foam spray fire extinguishing system with high safety factor according to claim 1, wherein the pressure detector is an axial edge stainless steel shock-proof electric contact pressure gauge, and the maximum measuring range of the electric contact pressure gauge is 20-30 Mpa.
3. A high factor of safety foam-spray fire extinguishing system according to claim 1, wherein the transducer sends a current signal of 4-20 mA.
4. A high safety foam spray fire suppression system as claimed in either of claims 1 or 2, it is characterized in that the fire fighting system comprises a foam storage tank and a high-pressure nitrogen cylinder, a gas outlet of the high-pressure nitrogen cylinder is communicated with a gas inlet of the foam storage tank through an exhaust pipe, a first control valve and a first flowmeter are arranged on the exhaust pipe, a liquid outlet of the foam storage tank is communicated with the fire-fighting main pipe, a second control valve and a second flowmeter are arranged on the fire main pipe, a first pressure detector is arranged on the high-pressure nitrogen cylinder, a second pressure detector is arranged on the foam storage tank, the first pressure detector, the first flowmeter, the second pressure detector and the second flowmeter are connected with a signal input end of the industrial personal computer, the first control valve and the second control valve are connected with a signal output end of the industrial personal computer.
5. The foam spray fire extinguishing system with high safety factor according to claim 4, wherein the first pressure detector and the second pressure detector are connected with an industrial personal computer of a control system through a shielding compensation line.
6. The foam spray fire-extinguishing system with high safety factor according to claim 1, wherein the fire alarm monitoring system comprises a linear temperature-sensitive detector, a temperature probe detector and a main transformer three-side switch processor, the linear temperature-sensitive detector is wound on a transformer, the temperature probe detector is fixedly installed in the transformer, and the main transformer three-side switch processor is fixedly installed on a power supply of the transformer.
7. The foam spray fire extinguishing system with high safety factor according to claim 1, characterized in that the control system comprises an industrial personal computer, a control valve group and an alarm device, wherein a signal output end of the industrial personal computer is communicated with the control valve group and a signal input end of the alarm device, and a signal input end of the industrial personal computer is communicated with a fire alarm monitoring system and a signal output end of the converter.
8. The foam spray fire-extinguishing system with high safety factor according to any one of claims 1 or 7, wherein the control valve group comprises a first control valve, a second control valve, an air supply valve, an exhaust valve, a main fire-fighting valve and at least one zone control valve, the air supply valve is arranged on an air supply pipeline of a high-pressure nitrogen cylinder, the exhaust valve is arranged on an exhaust pipe of the foam storage tank, the main fire-fighting valve is arranged on a main fire-fighting pipe, and the zone control valve is arranged on each branch fire-fighting pipe communicated with the main fire-fighting pipe.
9. A high safety foam spray fire suppression system as recited in claim 8 wherein a manual valve is provided adjacent each electrically controlled valve in said set of valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020221299.4U CN212327280U (en) | 2020-02-28 | 2020-02-28 | Foam spraying fire extinguishing system that factor of safety is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020221299.4U CN212327280U (en) | 2020-02-28 | 2020-02-28 | Foam spraying fire extinguishing system that factor of safety is high |
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| Publication Number | Publication Date |
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| CN212327280U true CN212327280U (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020221299.4U Active CN212327280U (en) | 2020-02-28 | 2020-02-28 | Foam spraying fire extinguishing system that factor of safety is high |
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- 2020-02-28 CN CN202020221299.4U patent/CN212327280U/en active Active
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