CN113134186A

CN113134186A - Regional intelligent air compression foam fire extinguishing system and fire extinguishing method

Info

Publication number: CN113134186A
Application number: CN202110602157.1A
Authority: CN
Inventors: 丛培江; 曹素兰; 孟凡斌
Original assignee: Inner Mongolia Hengxin Fire Fighting Technology Co ltd
Current assignee: Inner Mongolia Hengxin Fire Fighting Technology Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-07-20

Abstract

The invention discloses a regional intelligent air compression foam fire extinguishing system and a fire extinguishing method, which comprises a main transformer, a temperature monitoring and controlling area, a proportional mixing area, a foam liquid supply area, a fire-fighting water supply area and a fire-fighting water pump automatic inspection area, wherein the proportional mixing area is connected with an on-site injection system of the main transformer through a pipeline, the invention can realize real-time monitoring of the temperature of the main transformer, when the main transformer generates a fire alarm, the proportional mixing area and a main transformer intelligent control cabinet form a logic relationship to send out a control instruction, and the regional intelligent air compression foam fire extinguishing system is started, the equipment configuration is reasonable, the sprayed foam liquid is uniform and fine, the fire extinguishing performance is excellent, the produced foam liquid is long in liquid separating time, the continuous foam liquid supply amount is large, the time is long, the defects and difficulties which are difficult to solve of the existing fire extinguishing equipment of a transformer substation are greatly reduced, and meanwhile, the fire-fighting water pump automatic inspection area is arranged, the automatic inspection device can periodically perform closed-loop circulation automatic inspection, thereby finding problems in time and giving an alarm.

Description

Regional intelligent air compression foam fire extinguishing system and fire extinguishing method

Technical Field

The invention belongs to the field of fire fighting, and particularly relates to a regional intelligent air compression foam fire extinguishing system and a fire extinguishing method.

Background

In life, with the continuous improvement of fire-fighting technical level and the increasing demand for transformer fire-fighting equipment, foam fire extinguishing devices are gradually developed and are more and more in variety, during fire-fighting operation, a water spray fire extinguishing system and a foam fire extinguishing system are more applied, the existing water spray fire extinguishing system subjectively lacks trust for the safety guarantee of the water spray fire extinguishing system, does not dare to carry out the test of electrification or normal work on the system, and the daily maintenance management such as the specified start test in each month cannot be realized, and the result of the failure of the water spray fire extinguishing system due to the long-term lack of maintenance and failure of the water spray fire extinguishing system is bound to cause the real fire hazard to have the functions of fire extinguishing and cooling, the foam fire extinguishing devices are generally built in the outer and remote areas of most transformer substations, are subjected to the defects of large sand in suburbs, cold, small foam liquid storage amount of storage tanks, serious liquid supply consumption in case of fire, incapable of continuous liquid supply and the like, and cause a great difficulty for fire-fighting of transformers, the transformer catches fire once, puts out a fire untimely, very easily causes the great loss and causes adverse effect to the society for the country to current foam fire extinguishing system is carrying out when actual use, can't carry out real-time supervision to the temperature of main transformer, thereby leads to putting out a fire untimely, and current foam fire extinguishing system is when using simultaneously, lacks the periodic inspection function, can't guarantee the normal operating of system, and lack complete control mode, can't make suitable answer mode according to actual conditions.

The invention content is as follows:

in order to solve the technical problems, the invention provides a regional intelligent air compression foam fire extinguishing system and a regional intelligent air compression foam fire extinguishing method.

The purpose of the invention is implemented by the following technical scheme:

an area intelligent air compression foam fire extinguishing system comprises a main transformer, a temperature monitoring and controlling area, a proportion mixing area, a foam liquid supply area, a fire-fighting water supply area and a fire-fighting water pump automatic inspection area, the proportional mixing area is connected with an on-site injection system of the main transformer through a pipeline, the temperature monitoring and controlling area is arranged on the top of the main transformer and on the main transformer body, the temperature monitoring control area is connected with an intelligent control cabinet on the site of the main transformer through a cable, the foam liquid supply area is connected with the proportional mixing area through a pipeline, the fire-fighting water supply area is connected with the proportional mixing area through a pipeline, one end of the fire-fighting water pump automatic inspection area is connected with the fire-fighting water supply area through a pipeline, the automatic inspection area of the fire pump is connected with the proportional mixing area through a pipeline at one end far away from the fire water supply area.

Preferably, the temperature monitoring control area comprises a lifting seat, the top of the main transformer is fixedly mounted on the lifting seat, porcelain sleeves are fixedly mounted at the top of the lifting seat, a temperature control box is fixedly mounted at the outer side of the bottom of the main transformer and electrically connected with an intelligent control cabinet on the site of the main transformer, temperature sensing cables are fixedly mounted at the outer sides of the lifting seat, platinum thermal resistance temperature probes are fixedly mounted at the outer sides of the temperature sensing cables, one ends of the temperature sensing cables, far away from the lifting seat, are fixedly connected with the temperature control box, and the lifting seat is electrically connected with the temperature control box through corresponding temperature sensing cables.

Preferably, the proportional mixing area includes the gas holder, the outside fixed mounting at gas holder top has a manometer, there is an export ball valve in the outside of gas holder through pipe connection, the one end that the gas holder was kept away from to an export ball valve has air compressor through pipe connection, the bottom of gas holder has No. two export ball valves through pipe connection, the one end fixed mounting that the gas holder was kept away from to No. two export ball valves has gas check valve, the one end that No. two export ball valves were kept away from to gas check valve has a proportional mixer through pipe connection, the one end of a proportional mixer is passed through the pipeline and is connected with the on-the-spot injection system of main transformer, the one end that main transformer was kept away from to a proportional mixer has No. two proportional mixers through pipe connection.

As preferred, the foam supplies the liquid region to include the foam liquid storage jar, there is the import ball valve bottom of foam liquid storage jar through the pipe connection, the one end fixedly connected with pipe and No. two pipes of foam liquid storage jar are kept away from to the import ball valve, the outside of a pipe and No. two pipes all fixed mounting in proper order has a foam proportioning pump and a No. one ends the gate valve, No. one pipe and No. two pipes are kept away from between the one end of import ball valve the No. three pipes of fixedly connected with, No. three pipe is kept away from the one end of a pipe and No. two proportioner fixed connection, the outside of No. three pipes and be located one side fixed mounting of a pipe and have No. two manometers, the outside of No. three pipes and be located No. two manometer and No. two outlet ball valves of fixed mounting between the proportioner.

As preferred, fire control water supply area includes the fire pond, one side fixedly connected with No. four pipes and No. five pipes in the fire pond, No. four pipes and No. five outside of managing all fixed mounting in proper order have import gate valve, fire pump, No. three manometer, No. two to end gate valve and export gate valve, No. four pipes and No. five pipes keep away from No. six pipes of fixedly connected with between the one end in fire pond, No. six outside of managing just be located between No. four pipes and No. five pipes fixed mounting have No. four manometer, the one end and No. two proportioner fixed connection of No. six pipes.

As preferred, the automatic region of patrolling and examining of fire pump includes No. seven pipes, No. seven pipes of outside and the adjacent one side fixedly connected with of No. five pipes in fire pond, the one end and No. six pipe fixed connection in fire pond are kept away from to No. seven pipes, the outside fixed mounting of No. seven pipes has the motorised valve of patrolling and examining, patrol and examine the motorised valve and be close to No. two import gate valves of the one end fixedly connected with in fire pond, patrol and examine the one end fixed mounting that the motorised valve is close to No. six pipes and have No. three import gate valves.

The invention also discloses a regional intelligent air compression foam fire extinguishing method, which comprises the following steps:

s1, sending the measured temperature value to a control system through a temperature transmitter in a temperature control box by a platinum thermal resistance temperature probe and a temperature sensing cable;

s2, the control system circularly detects the measured temperature value, and when the temperature value exceeds the jump upper limit, the control system controls to send out a forecast signal; when the temperature value exceeds the upper temperature limit, the control system controls to send out a warning signal and start a fire extinguishing program at the same time; the fire extinguishing procedure comprises:

s2.1, controlling a fire pump and a foam proportioning pump to respectively pump water in a fire pool and foam in a foam liquid storage tank into a second proportioning mixer for mixing by the aid of a regional intelligent air compression foam fire extinguishing system, and pumping the mixture into a first proportioning mixer after mixing;

and S2.2, pressurizing the gas storage tank by an air compressor, filling gas in the gas storage tank into the first proportional mixer, mixing the gas with the mixture in the S2.1, and spraying and extinguishing fire around the transformer through a spraying pipeline.

Further, in step S2, the transition upper limit is 13 ℃/S.

Further, in the step S2, the upper temperature limit is 105 ℃.

Further, in step S2, when the detected value of any one of the platinum thermistor temperature probes exceeds the jump upper limit or the temperature upper limit, a corresponding response is performed.

Further, in step S1, when a disconnection fault is detected in the platinum thermal resistance temperature probe, the control system automatically sends an alarm signal.

Further, in the step S2, when the temperature value does not exceed the jump upper limit and the temperature upper limit, polling is performed at regular intervals, during polling, the polling electric valve is opened, the second inlet gate valve is a normally open valve, the third inlet gate valve is a normally open valve, the fire pump is started to run for 2min in a variable frequency polling mode, then the fire pump is closed and the polling electric valve is closed to complete variable frequency polling, and the polling electric valve is opened without adding too much pressure to the pipeline. The second inlet gate valve is a normally open valve, the third inlet gate valve is a normally open valve, the second inlet gate valve and the third inlet gate valve are closed when the inspection electric valve has a fault and needs to be maintained,

furthermore, if the temperature value exceeds the jump upper limit or the temperature upper limit fire alarm in the inspection process, the inspection is immediately quitted, and corresponding forenotice or warning signals are carried out and the fire extinguishing program is started at the same time.

The invention has the beneficial effects that:

1. the invention can realize real-time monitoring of the temperature of the main transformer, and when the main transformer generates a fire alarm, the invention forms a logical relation with the intelligent control cabinet of the main transformer to send a control instruction, and starts the regional intelligent air compression foam fire extinguishing system.

2. The automatic inspection system is provided with the automatic inspection area of the fire pump, can periodically perform closed-loop circulation automatic inspection, can prevent the fire pump from being incapable of being started due to corrosion caused by long-term non-operation, and can realize 'one-time soldier for one thousand days for soldiers in nourishing the soldiers'. When automatic the inspection simultaneously, the rust slag of pipeline inner wall is taken back to the fire-fighting water pond, and periodic treatment prevents that rust slag from being washed to shower nozzle department by rivers and silted up the shower nozzle when starting the procedure of putting out a fire, is difficult to satisfy the fire control demand.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the area intelligent air compression foam fire extinguishing system of the present invention;

FIG. 2 is a front view of a temperature monitoring control area of the present invention;

FIG. 3 is a top view of the temperature monitoring control area of the present invention.

In the figure: 1. a main transformer; 2. a temperature monitoring control area; 21. a lifting seat; 22. a porcelain bushing; 23. a temperature control box; 24. a temperature sensing cable; 25. a platinum thermistor temperature probe; 3. a proportional mixing zone; 31. a gas storage tank; 32. an outlet ball valve; 33. an air compressor; 34. a second outlet ball valve; 35. a first proportioner; 36. a second proportioner; 37. a first pressure gauge; 38. a gas check valve; 4. a foam feed area; 41. a foam liquid storage tank; 42. an inlet ball valve; 43. a first pipe; 44. a second pipe; 45. a foam proportioning pump; 46. a first stop valve; 47. a third pipe; 48. a second pressure gauge; 49. a third outlet ball valve; 5. a fire-fighting water supply area; 51. a fire pool; 52. a fourth tube; 53. a fifth pipe; 54. an inlet gate valve; 55. a fire pump; 56. a third pressure gauge; 57. a second stop gate valve; 58. an outlet gate valve; 59. a sixth pipe; 510. a fourth pressure gauge; 6. the fire pump automatically inspects the area; 61. a seventh pipe; 62. routing inspection electric valve; 63. a second inlet gate valve; 64. no. three inlet gate valves.

The specific implementation mode is as follows:

as shown in fig. 1 to 3, the following technical solutions are adopted in the present embodiment:

example 1:

a regional intelligent air compression foam fire extinguishing system comprises a main transformer 1, a temperature monitoring and controlling region 2, a proportional mixing region 3, a foam liquid supply region 4, a fire-fighting water supply region 5 and a fire-fighting water pump automatic inspection region 6, wherein the proportional mixing region 3 is connected with a spraying system on the site of the main transformer 1 through a pipeline, and the spraying system is convenient for being matched with the regional intelligent air compression foam fire extinguishing system to perform fire extinguishing spraying operation; the temperature monitoring control area 2 is arranged at the top of the main transformer 1, and the temperature monitoring control area 2 is electrically connected with an on-site intelligent control cabinet of the main transformer 1 and is connected with a system through the intelligent control cabinet, so that the system operation can be better controlled; foam supplies liquid region 4 and proportion mixed region 3 to pass through the pipe connection, fire control water supply region 5 and proportion mixed region 3 pass through the pipe connection, the automatic one end of patrolling and examining region 6 of fire control water pump passes through the pipe connection with fire control water supply region 5, the automatic one end of patrolling and examining region 6 and keeping away from fire control water supply region 5 of fire control water pump passes through the pipe connection with proportion mixed region 3.

Wherein, temperature monitoring control area 2 includes the seat of rising 21, the top fixed mounting of main transformer 1 has three seat of rising 21, the equal fixed mounting in top of seat of rising 21 has insulator 22, the outside fixed mounting of main transformer 1 bottom has temperature control box 23, temperature control box 23 and the on-the-spot intelligent control cabinet electric connection of main transformer 1, the equal fixed mounting in outside of seat of rising 21 has temperature sensing cable 24, the equal fixed mounting in outside of temperature sensing cable 24 has platinum resistance temperature probe 25, the one end that temperature sensing cable 24 kept away from seat of rising 21 all with temperature control box 23 fixed connection, seat of rising 21 all through the temperature sensing cable 24 and the temperature control box 23 electric connection that correspond, through setting up temperature monitoring control area 2, be convenient for better carry out real-time supervision to the temperature around the main transformer 1.

Wherein, the proportional mixing area 3 comprises an air storage tank 31, a first pressure gauge 37 is fixedly installed on the outer side of the top of the air storage tank 31, the outer side of the air storage tank 31 is connected with a first outlet ball valve 32 through a pipeline, one end, far away from the air storage tank 31, of the first outlet ball valve 32 is connected with an air compressor 33 through a pipeline, the bottom of the air storage tank 31 is connected with a second outlet ball valve 34 through a pipeline, one end, far away from the air storage tank 31, of the second outlet ball valve 34 is fixedly installed with a gas check valve 38, one end, far away from the second outlet ball valve 34, of the gas check valve 38 is connected with a first proportional mixer 35 through a pipeline, one end of the first proportional mixer 35 is connected with a spray system on the site of the main transformer 1 through a pipeline, one end, far away from the main transformer 1, of the first proportional mixer 35 is connected with a second proportional mixer 36 through a pipeline, by arranging the proportional mixing area 3, the foam liquid and the water can be mixed in proportion better, and meanwhile, the compressed air and the foam liquid and the water can be mixed in proportion.

Wherein, foam supplies regional 4 including foam liquid storage jar 41, there is imported ball valve 42 bottom of foam liquid storage jar 41 through the pipe connection, one end fixedly connected with No. one pipe 43 and No. two pipes 44 of foam liquid storage jar 41 is kept away from to imported ball valve 42, No. one pipe 43 and No. two outside of pipe 44 all fixed mounting have foam proportional pump 45 and No. one stop the gate valve 46 in proper order, No. one pipe 43 and No. two pipe 44 keep away from between the one end of imported ball valve 42 fixedly connected with No. three pipe 47, No. three pipe 47 keep away from one end of No. one pipe 43 and No. two proportional mixer 36 fixed connection, No. two pipe 47's the outside and be located one side fixed mounting of No. one pipe 43 have No. two manometer 48, No. three pipe 47's the outside and be located No. two manometer 48 and No. two fixed mounting have No. three export ball valve 49 between proportional mixer 36, supply regional 4 through setting up the foam, thereby facilitating better foam liquid supply.

Wherein, regional 5 includes the fire-fighting water pond 51 of fire-fighting water supply, one side fixedly connected with fourth number pipe 52 and No. five pipe 53 of fire-fighting water pond 51, No. four pipe 52 and No. five pipe 53's the outside all fixed mounting in proper order have an import gate valve 54, fire-fighting water pump 55, No. three manometer 56, No. two check valves 57 and export gate valve 58, No. four pipe 52 and No. five pipe 53 keep away from between the one end of fire-fighting water pond 51 fixedly connected with sixth number pipe 59, the outside of No. six pipe 59 just is located between No. four pipe 52 and No. five pipe 53 fixed mounting has manometer 510 No. four, No. six pipe 59's one end and No. two proportional mixer 36 fixed connection are through setting up regional 5 of fire-fighting water supply, are convenient for better carry out the water supply operation.

The automatic inspection area 6 of the fire pump comprises a seventh pipe 61, one side of the outside of the fire pool 51 adjacent to the fifth pipe 53 is fixedly connected with the seventh pipe 61, one end, far away from the fire pool 51, of the seventh pipe 61 is fixedly connected with a sixth pipe 59, the outer side of the seventh pipe 61 is fixedly provided with an inspection electric valve 62, one end, close to the fire pool 51, of the inspection electric valve 62 is fixedly connected with a second inlet gate valve 63, one end, close to the sixth pipe 59, of the inspection electric valve 62 is fixedly provided with a third inlet gate valve 64, and by arranging the automatic inspection area 6 of the fire pump, the situation that the fire pump 55 cannot be started due to corrosion caused by long-term non-operation can be prevented.

Example 2:

the method for extinguishing fire by using the regional intelligent air compression foam fire extinguishing device in the embodiment 1 comprises the following steps:

s1, the platinum thermal resistance temperature probe 25 and the temperature sensing cable 24 send the measured temperature value to the control system through the temperature transmitter in the temperature control box 23;

s2, the control system circularly detects the measured temperature value, and when the temperature value exceeds the jump upper limit of 13 ℃/S, the control system controls to send out a forecast signal; when the temperature value exceeds the temperature upper limit of 105 ℃, the control system controls to send out a warning signal and starts a fire extinguishing program at the same time; the fire extinguishing procedure comprises:

s2.1, controlling a fire-fighting water pump 55 and a foam proportioning pump 45 by the regional intelligent air compression foam fire-extinguishing system to respectively pump water in a fire-fighting water pool 51 and foam in a foam liquid storage tank 41 into a No. two proportioning mixer 36 for mixing, and pumping the mixture into a No. one proportioning mixer 35 after mixing;

s2.2, an air compressor 33 pressurizes the air storage tank 31, air in the air storage tank 31 is filled into the first proportional mixer 35 to be mixed with the mixture in the S2.1, and then spraying and fire extinguishing are carried out around the transformer through a spraying pipeline.

In step S2, when the detected value of any one of the platinum thermistor temperature probes 25 exceeds the jump upper limit or the temperature upper limit, a corresponding response is made.

In step S1, when a disconnection fault is detected in the platinum thermistor temperature probe 25, the control system automatically sends an alarm signal.

In the step S2, when the temperature value does not exceed the jump upper limit and the temperature upper limit, polling is performed every 15 days, during polling, the polling electric valve 62, the second inlet gate valve 63 and the third inlet gate valve 64 are opened, the fire pump 55 is started to run for 2min in a variable frequency manner, then the fire pump 55 and the polling electric valve 62 are closed, the variable frequency polling is completed, and too much pressure is not added to the pipeline.

If the temperature value exceeds the jump upper limit or the temperature upper limit in the inspection process, the inspection is immediately quitted, and corresponding forenotice or warning signals are carried out while the fire extinguishing program is started.

Regional intelligent air compression foam fire extinguishing systems and traditional foam spraying fire extinguishing systems experiment contrast data, as shown in the following table:

the regional intelligent air compression foam fire extinguishing system has the advantages that the supply time of fire fighting liquid is longer, the mixing ratio of foam and water is smaller, the freezing point is lower, and the market demand, particularly the fire extinguishing demand of a transformer substation, can be met.

In the description of the present invention, it is to be understood that the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit indication of the number of technical features indicated, whereby the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An area intelligent air compression foam fire extinguishing system is characterized by comprising a main transformer (1), a temperature monitoring control area (2), a proportional mixing area (3), a foam liquid supply area (4), a fire water supply area (5) and a fire water pump automatic inspection area (6), wherein the proportional mixing area (3) is connected with a spraying system on the site of the main transformer (1) through a pipeline, the temperature monitoring control area (2) is arranged at the top of the main transformer (1), the temperature monitoring control area (2) is electrically connected with an intelligent control cabinet on the site of the main transformer (1), the foam liquid supply area (4) is connected with the proportional mixing area (3) through a pipeline, the fire water supply area (5) is connected with the proportional mixing area (3) through a pipeline, one end of the fire water pump automatic inspection area (6) is connected with the fire water supply area (5) through a pipeline, the automatic fire pump inspection area (6) is connected with the proportional mixing area (3) through a pipeline, wherein one end of the automatic fire pump inspection area (6) is far away from the fire water supply area (5).

2. An area intelligent air compression foam fire suppression system according to claim 1, the temperature monitoring control area (2) comprises a lifting seat (21), the top of the main transformer (1) is fixedly provided with the lifting seat (21), porcelain sleeves (22) are fixedly arranged at the tops of the lifting seats (21), a temperature control box (23) is fixedly arranged on the outer side of the bottom of the main transformer (1), the temperature control box (23) is electrically connected with an on-site intelligent control cabinet of the main transformer (1), temperature sensing cables (24) are fixedly arranged on the outer sides of the lifting seats (21), a platinum thermal resistance temperature probe (25) is fixedly arranged on the outer side of each temperature sensing cable (24), one end of the temperature sensing cable (24) far away from the lifting seat (21) is fixedly connected with the temperature control box (23), the lifting seats (21) are connected with the temperature control box (23) through corresponding temperature sensing cables (24).

3. An area intelligent air compression foam fire extinguishing system according to claim 1, wherein the proportional mixing area (3) comprises an air storage tank (31), a first pressure gauge (37) is fixedly installed on the outer side of the top of the air storage tank (31), a first outlet ball valve (32) is connected on the outer side of the air storage tank (31) through a pipeline, an air compressor (33) is connected at one end of the first outlet ball valve (32) far away from the air storage tank (31) through a pipeline, a second outlet ball valve (34) is connected at the bottom of the air storage tank (31) through a pipeline, a gas check valve (38) is fixedly installed at one end of the second outlet ball valve (34) far away from the air storage tank (31), a first proportional mixer (35) is connected at one end of the gas check valve (38) far away from the second outlet ball valve (34) through a pipeline, and one end of the first proportional mixer (35) is connected with a main transformer (1) on-site injection system through a pipeline And one end of the first proportional mixer (35), which is far away from the main transformer (1), is connected with a second proportional mixer (36) through a pipeline.

4. The regional intelligent air compression foam fire extinguishing system according to claim 3, wherein the foam liquid supply region (4) comprises a foam liquid storage tank (41), the bottom of the foam liquid storage tank (41) is connected with an inlet ball valve (42) through a pipeline, one end of the inlet ball valve (42) far away from the foam liquid storage tank (41) is fixedly connected with a first pipe (43) and a second pipe (44), the outer sides of the first pipe (43) and the second pipe (44) are sequentially and fixedly provided with a foam proportioning pump (45) and a first stop gate valve (46), a third pipe (47) is fixedly connected between one ends of the first pipe (43) and the second pipe (44) far away from the inlet ball valve (42), one end of the third pipe (47) far away from the first pipe (43) is fixedly connected with a second proportioning mixer (36), one side of the outer side of the third pipe (47) and located on the first pipe (43) is fixedly provided with a second pressure gauge (48), and a third outlet ball valve (49) is fixedly arranged on the outer side of the third pipe (47) and between the second pressure gauge (48) and the second proportional mixer (36).

5. An area intelligent air compression foam fire suppression system according to claim 3, the fire-fighting water supply area (5) comprises a fire-fighting pool (51), one side of the fire-fighting pool (51) is fixedly connected with a fourth pipe (52) and a fifth pipe (53), the outer sides of the fourth pipe (52) and the fifth pipe (53) are respectively and fixedly provided with a first inlet gate valve (54), a fire pump (55), a third pressure gauge (56), a second stop gate valve (57) and an outlet gate valve (58) in sequence, a sixth pipe (59) is fixedly connected between the ends of the fourth pipe (52) and the fifth pipe (53) far away from the fire pool (51), a fourth pressure gauge (510) is fixedly arranged on the outer side of the sixth pipe (59) and between the fourth pipe (52) and the fifth pipe (53), one end of the sixth pipe (59) is fixedly connected with the second proportional mixer (36).

6. The regional intelligent air compression foam fire extinguishing system according to claim 5, wherein the automatic inspection area (6) of the fire pump comprises a seven-pipe (61), one side of the outside of the fire pool (51) adjacent to the five-pipe (53) is fixedly connected with the seven-pipe (61), one end of the seven-pipe (61) far away from the fire pool (51) is fixedly connected with a six-pipe (59), the outer side of the seven-pipe (61) is fixedly provided with an inspection electric valve (62), one end of the inspection electric valve (62) close to the fire pool (51) is fixedly connected with a second inlet gate valve (63), and one end of the inspection electric valve (62) close to the six-pipe (59) is fixedly provided with a third inlet gate valve (64).

7. Method for extinguishing fires with a regional intelligent air compression foam fire extinguishing system according to any of the claims 1-6, characterized by the following steps:

s1, sending the measured temperature value to the control system through the temperature transmitter in the temperature control box (23) by the platinum thermal resistance temperature probe and the temperature sensing cable (25);

s2.1, controlling a fire pump (55) and a foam proportioning pump (45) by the regional intelligent air compression foam fire extinguishing system to respectively pump water in a fire pool (51) and foam in a foam liquid storage tank (41) into a No. two proportioning mixer (36) for mixing, and pumping the mixture into a No. one proportioning mixer (35) after mixing;

s2.2, pressurizing the air storage tank (31) by an air compressor (33), filling gas in the air storage tank (31) into a first proportional mixer (35), mixing the gas with the mixture in the S2.1, and spraying and extinguishing fire around the transformer through a spraying pipeline.

8. The method for fire extinguishing by using air compression foam according to claim 7, wherein in step S2, the jump upper limit is 13 ℃/S.

9. The method as claimed in claim 7, wherein the upper temperature limit is 105 ℃ in step S2.

10. An area intelligent air compression foam fire extinguishing method according to claim 7, wherein in step S2, when the detection value of any one platinum thermal resistance temperature probe (25) exceeds the jump upper limit or the temperature upper limit, the corresponding response is carried out.

11. The method of claim 7, wherein in step S1, when a disconnection fault of the Pt thermistor temperature probe (25) is detected, the control system automatically sends out an alarm signal.

12. The method for fire extinguishing by using air compression foam according to claim 7, wherein in step S2, in order to prevent the fire pump from rusting out of operation for a long time, the fire pump is inspected at regular intervals, the inspection electric valve (62) is opened during inspection, the fire pump (55) is automatically started, each fire pump operates for 2min in a variable frequency mode, and then the fire pump (55) and the inspection electric valve (62) are closed to complete the variable frequency inspection of the fire pump.

13. The method of claim 12, wherein the fire pump exits the inspection immediately if a fire occurs during the inspection, and performs corresponding warning or warning signals to start fire extinguishing.