Carbon dioxide foam fire extinguishing system

Abstract

The utility model discloses a carbon dioxide foam fire extinguishing system, which relates to the technical field of fire fighting equipment and comprises a foam stock solution storage tank, a fire fighting water storage tank, a foaming, mixing and stirring device, a mixing pipe fitting, a carbon dioxide storage tank and a fire fighting spray water cannon, and the foaming, mixing and stirring device is provided with a first liquid inlet pipe, a second liquid inlet pipe and a foam liquid outlet pipe. A liquid inlet, an air inlet and a liquid outlet are formed in the mixing pipe fitting, the foam stock solution storage tank is connected with the first liquid inlet pipe through a first conveying pipeline, the fire fighting water storage tank is connected with the second liquid inlet pipe through a second conveying pipeline, and the foam liquid outlet pipe is connected with the liquid inlet through a foam conveying pipe. The carbon dioxide storage tank is connected with the gas inlet through a gas conveying pipeline, and the liquid outlet is connected with the fire-fighting spraying water monitor, so that the problems that the fire extinguishing effect is reduced and the fire extinguishing speed is slowed down when the fire is extinguished in a fire scene due to the fact that compressed air containing oxygen is used for foaming in an existing foam fire extinguishing system are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a carbon dioxide foam fire extinguishing system. Background Art

[0002] Foam fire extinguishing system is a common fire extinguishing equipment used to extinguish liquid fires in fires. This system sprays foam onto the fire scene to form a layer of foam covering the fire source, thereby effectively isolating the contact between air and the fire source to achieve the purpose of extinguishing the fire. Foam fire extinguishing system is usually used to deal with flammable liquid fires, such as oils, solvents, etc. It can effectively extinguish the flames and prevent the spread of fire. Foam fire extinguishing systems are widely used in factories, warehouses, oil depots and other places to protect the safety of personnel and property. Foam fire extinguishing systems can be divided into dry foam fire extinguishing systems and wet foam fire extinguishing systems according to the different foaming agents used. Dry foam fire extinguishing systems use dry powder foaming agents and are suitable for extinguishing fires of electrical equipment; wet foam fire extinguishing systems use aqueous foaming agents and are suitable for extinguishing flammable liquid fires.

[0003] The wet foam fire extinguishing system in the prior art mainly compresses the air, then transports the compressed air to the foam generator to foam with the foaming agent and fire water, and finally forms foam, which is sprayed out by the fire foam water monitor. However, since the compressed air contains oxygen, the presence of oxygen will lead to the problem of reduced fire extinguishing effect and slow fire extinguishing speed when extinguishing at the fire scene.

[0004] In the invention with application number: CN202111456442.3 and publication number: CN114100029B, a compressed air foam fire extinguishing system is disclosed, including a foam mixture processing mechanism, a compressed air supply device, a foam generating device and a fire-fighting pipe network. It still uses compressed air containing oxygen for foaming, which will lead to reduced fire extinguishing effect and slower fire extinguishing speed when extinguishing the fire at the fire scene. Utility Model Content

[0005] Based on this, in order to address the above problems, the utility model proposes a carbon dioxide foam fire extinguishing system, which solves the problem that the current foam fire extinguishing system uses compressed air containing oxygen for foaming, which will lead to reduced fire extinguishing effect and slower fire extinguishing speed when extinguishing the fire at the fire scene.

[0006] The technical solution of the utility model is:

[0007] A carbon dioxide foam fire extinguishing system comprises a foam stock storage tank, a fire water storage tank, a foaming mixing and stirring device, a mixing pipe, a carbon dioxide storage tank and a fire sprinkler water monitor, wherein the foaming mixing and stirring device is provided with a first liquid inlet pipe, a second liquid inlet pipe and a foam liquid outlet pipe, and the mixing pipe is provided with a liquid inlet, an air inlet and a liquid outlet;

[0008] The foam stock liquid storage tank is connected to the first liquid inlet pipe through a first delivery pipeline, and the first delivery pipeline is provided with a first solenoid valve, a first metering pump and a first check valve in sequence; the fire water storage tank is connected to the second liquid inlet pipe through a second delivery pipeline, and the second delivery pipeline is provided with a second solenoid valve, a second metering pump and a second check valve in sequence;

[0009] The foam liquid outlet pipe is connected to the liquid inlet through the foam delivery pipe, and the foam delivery pipe is provided with a foam solenoid valve, a foam pump and a foam one-way valve in sequence. The carbon dioxide storage tank is connected to the air inlet through the gas delivery pipeline, and the gas delivery pipeline is provided with a pressure reducing valve, a gas solenoid valve and a gas one-way valve in sequence. The liquid outlet is connected to the fire sprinkler water cannon through the gas foam output pipeline, and the gas foam output pipeline is provided with an output solenoid valve and an output pump.

[0010] Preferably, the mixing tube comprises a first connecting tube, a second connecting tube and a third connecting tube which are sealed and connected in sequence, the liquid inlet is arranged at one end of the first connecting tube, the air inlet is arranged on the second connecting tube, and the liquid outlet is arranged at one end of the third connecting tube.

[0011] Preferably, a blocking rod is provided in the third connecting pipe.

[0012] Preferably, a connector is provided at the air inlet, the connector comprising an insertion tube and a connecting disk, an opening is provided on the connecting disk, one end of the insertion tube is matched with the opening on the connecting disk and is fixedly connected to the connecting disk, the other end of the insertion tube is inserted into the second connecting tube through the air inlet, and the connecting disk is fixedly connected to the air inlet.

[0013] Preferably, an inclined section is provided at one end of the insertion tube located in the second connecting tube.

[0014] Preferably, the foaming mixing and stirring device includes a tank body with an installation cavity inside, a foaming stirring component arranged in the tank body installation cavity and a driving component arranged on the outer side of the tank body, two ends of the foaming stirring component pass through both sides of the tank body and are rotatably connected to the tank body, one end of the foaming stirring component is connected to the driving component, and the driving component is used to drive the foaming stirring component.

[0015] Preferably, the first liquid inlet pipe is arranged at the bottom of one side of the tank body and is connected to the installation cavity in the tank body, the second liquid inlet pipe is arranged at the top of one side of the tank body and is connected to the installation cavity in the tank body, and the foam liquid outlet pipe is arranged at the bottom of the other side of the tank body and is connected to the installation cavity in the tank body.

[0016] Preferably, the foaming stirring assembly includes a stirring shaft, a plurality of connecting rods and a plurality of spiral belt-shaped stirring members, both ends of the stirring shaft respectively pass through the tank body and are rotatably connected to the tank body, one end of the stirring shaft is fixedly connected to the output shaft of a driving member, and the driving member is used to drive the stirring shaft, and the plurality of spiral belt-shaped stirring members are cooperatively arranged in the tank body and are sleeved on the outside of the stirring shaft, and are fixedly connected to the stirring shaft through a plurality of connecting rods, and the connecting rods pass through the stirring shaft and are fixedly connected to the stirring shaft.

[0017] Preferably, an observation window is provided on the top of one side of the tank body, and a cover body adapted to the observation window is provided at the observation window, and the cover body and the observation window are detachably connected.

[0018] Preferably, it further comprises a mounting bracket, and the tank body and the driving member are cooperatively mounted on the mounting bracket.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] When in use, the foam stock liquid stored in the foam stock liquid storage tank enters the foaming mixing and stirring device through the first delivery pipe and the first liquid inlet pipe, the fire water in the fire water storage tank enters the foaming mixing and stirring device through the second delivery pipe and the second liquid inlet pipe, the foam stock liquid and the fire water are mixed in the foaming mixing and stirring device to form foam liquid; the foam liquid enters the mixing pipe fitting through the foam liquid outlet pipe, the foam delivery pipe and the liquid inlet, the carbon dioxide in the carbon dioxide storage tank enters the mixing pipe fitting through the gas delivery pipe and the air inlet, the carbon dioxide is mixed with the foam liquid through the mixing pipe fitting to form carbon dioxide foam; the carbon dioxide foam enters the fire sprinkler water cannon through the liquid outlet and the gas foam output pipe, and the carbon dioxide foam is sprayed to the fire scene through the fire sprinkler water cannon to complete the fire extinguishing. The use of carbon dioxide instead of compressed air solves the problem that the current foam fire extinguishing system uses compressed air containing oxygen for foaming, which will lead to reduced fire extinguishing effect and slow fire extinguishing speed when extinguishing the fire at the fire scene. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a carbon dioxide foam fire extinguishing system described in an embodiment of the utility model;

[0022] Figure 2 The structure of the mixing pipe described in the embodiment of the utility model is schematically shown. Figure 1 ;

[0023] Figure 3 The structure of the mixing pipe described in the embodiment of the utility model is schematically shown. Figure 2 ;

[0024] Figure 4It is a schematic diagram of the cross-sectional structure of the mixing pipe member described in the embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the foaming, mixing and stirring device described in the embodiment of the utility model;

[0026] Figure 6 It is a partial structural schematic diagram of the foaming, mixing and stirring device described in the embodiment of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the foaming and stirring assembly described in the embodiment of the utility model;

[0028] Description of reference numerals:

[0029] 10-foam stock solution storage tank, 100-first liquid inlet pipe, 101-second liquid inlet pipe, 102-foam liquid outlet pipe, 103-liquid inlet, 104-gas inlet, 105-liquid outlet, 106-first delivery pipeline, 107-first solenoid valve, 108-first metering pump, 109-first one-way valve, 110-second delivery pipeline, 111-second solenoid valve, 112-second metering pump, 113-second one-way valve, 114-foam delivery pipe, 115-foam solenoid valve, 116-foam pump, 117-foam one-way valve, 118-gas delivery pipeline, 119-pressure reducing valve, 120-gas solenoid valve, 121-gas one-way valve, 122-gas foam output pipeline, 123-output solenoid valve Magnetic valve, 124-output pump, 20-fire water storage tank, 30-foaming mixing stirring device, 300-tank body, 301-foaming stirring assembly, 302-driving member, 303-stirring shaft, 304-connecting rod, 305-spiral belt stirring member, 306-observation window, 307-cover body, 308-mounting bracket, 309-bearing seat, 310-fixed frame, 311-coupling, 40-mixing pipe fitting, 400-first connecting pipe, 401-second connecting pipe, 402-third connecting pipe, 403-blocking rod, 404-connector, 405-insertion pipe, 406-connecting plate, 407-opening, 408-inclined section, 50-carbon dioxide storage tank, 60-fire sprinkler water cannon. DETAILED DESCRIPTION

[0030] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0031] Example:

[0032] like Figure 1As shown, in order to solve the above problems, the present embodiment discloses a carbon dioxide foam fire extinguishing system, including a foam stock liquid storage tank 10, a fire water storage tank 20, a foaming mixing and stirring device 30, a mixing pipe 40, a carbon dioxide storage tank 50 and a fire sprinkler water monitor 60, the foaming mixing and stirring device 30 is provided with a first liquid inlet pipe 100, a second liquid inlet pipe 101 and a foam liquid outlet pipe 102, and the mixing pipe 40 is provided with a liquid inlet 103, an air inlet 104 and a liquid outlet 105;

[0033] The foam stock liquid storage tank 10 is connected to the first liquid inlet pipe 100 through a first delivery pipe 106, and the first delivery pipe 106 is provided with a first solenoid valve 107, a first metering pump 108 and a first check valve 109 in sequence. The fire water storage tank 20 is connected to the second liquid inlet pipe 101 through a second delivery pipe 110, and the second delivery pipe 110 is provided with a second solenoid valve 111, a second metering pump 112 and a second check valve 113 in sequence.

[0034] The foam liquid outlet pipe 102 is connected to the liquid inlet 103 through the foam delivery pipe 114, and the foam delivery pipe 114 is provided with a foam solenoid valve 115, a foam pump 116 and a foam one-way valve 117 in sequence. The carbon dioxide storage tank 50 is connected to the air inlet 104 through a gas delivery pipe 118, and the gas delivery pipe 118 is provided with a pressure reducing valve 119, a gas solenoid valve 120 and a gas one-way valve 121 in sequence. The liquid outlet 105 is connected to the fire sprinkler water cannon 60 through a gas foam output pipe 122, and the gas foam output pipe 122 is provided with an output solenoid valve 123 and an output pump 124.

[0035] When in use, the foam liquid stored in the foam liquid storage tank 10 enters the foaming mixing and stirring device 30 through the first delivery pipe 106 and the first liquid inlet pipe 100, and the fire water in the fire water storage tank 20 enters the foaming mixing and stirring device 30 through the second delivery pipe 110 and the second liquid inlet pipe 101, and the foam liquid and the fire water are mixed in the foaming mixing and stirring device 30 to form a foam liquid; the foam liquid enters the mixing pipe 40 through the foam liquid outlet pipe 102, the foam delivery pipe 114 and the liquid inlet 103, and the carbon dioxide in the carbon dioxide storage tank 50 enters the mixing pipe 40 through the gas delivery pipe 118 and the air inlet 104, and the carbon dioxide is mixed with the foam liquid through the mixing pipe 40 to form carbon dioxide foam; the carbon dioxide foam enters the fire sprinkler water cannon 60 through the liquid outlet 105 and the gas foam output pipe 122, and the carbon dioxide foam is sprayed to the fire scene through the fire sprinkler water cannon 60 to complete the fire extinguishing. The use of carbon dioxide instead of compressed air solves the problem that the current foam fire extinguishing system uses compressed air containing oxygen for foaming, which leads to reduced fire extinguishing effect and slower fire extinguishing speed when extinguishing fire at the fire scene.

[0036] Among them, the first solenoid valve 107, the first metering pump 108 and the first one-way valve 109 are used to control the delivery and delivery amount of the foam concentrate; the second solenoid valve 111, the second metering pump 112 and the second one-way valve 113 are used to control the delivery and delivery amount of the fire water, so as to achieve the mixing and foaming of the fire water and the foam concentrate in a certain proportion; the foam solenoid valve 115, the foam pump 116 and the foam one-way valve 117 are used to control the delivery of the foam liquid; the pressure reducing valve 119, the gas solenoid valve 120 and the gas one-way valve 121 are used to control the delivery of carbon dioxide; the output solenoid valve 123 and the output pump 124 are used to control the delivery of carbon dioxide foam.

[0037] like Figures 2 to 4 As shown, in order to allow the foam liquid to be fully mixed with the carbon dioxide gas, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the mixing pipe 40 includes a first connecting pipe 400, a second connecting pipe 401 and a third connecting pipe 402 which are sealed and connected in sequence, the liquid inlet 103 is arranged at one end of the first connecting pipe 400, the air inlet 104 is arranged on the second connecting pipe 401, and the liquid outlet 105 is arranged at one end of the third connecting pipe 402.

[0038] Preferably, a blocking rod 403 is provided in the third connecting tube 402 .

[0039] Preferably, a connector 404 is provided at the air inlet 104, and the connector 404 includes an insertion tube 405 and a connecting disk 406, and an opening 407 is provided on the connecting disk 406. One end of the insertion tube 405 is matched with the opening 407 on the connecting disk 406 and is fixedly connected to the connecting disk 406. The other end of the insertion tube 405 is inserted into the second connecting tube 401 through the air inlet 104, and the connecting disk 406 is fixedly connected to the air inlet 104.

[0040] Preferably, an inclined cut surface 408 is provided at one end of the insertion tube 405 located in the second connecting tube 401 .

[0041] When in use, one end of the insertion tube 405 is inserted into the second connecting tube 401, and an inclined cut surface 408 is provided at one end of the insertion tube 405 located in the second connecting tube 401, so that the foam liquid impacts one side of the insertion tube 405, forming a vortex, and fully mixing with the carbon dioxide gas entering the insertion tube 405. At the same time, the setting of the blocking rod 403 can mix the foam liquid and the carbon dioxide again.

[0042] like Figures 5 to 7As shown, in order to facilitate the full mixing and foaming of the foam concentrate and fire water, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the foaming mixing and stirring device 30 includes a tank body 300 with an installation cavity inside, a foaming stirring component 301 arranged in the installation cavity of the tank body 300, and a driving component 302 arranged on one side outside the tank body 300. Both ends of the foaming stirring component 301 pass through both sides of the tank body 300 and are rotatably connected to the tank body 300. One end of the foaming stirring component 301 is connected to the driving component 302, and the driving component 302 is used to drive the foaming stirring component 301.

[0043] Preferably, the first liquid inlet pipe 100 is arranged at the bottom of one side of the tank body 300 and is connected to the installation cavity in the tank body 300, the second liquid inlet pipe 101 is arranged at the top of one side of the tank body 300 and is connected to the installation cavity in the tank body 300, and the foam liquid outlet pipe 102 is arranged at the bottom of the other side of the tank body 300 and is connected to the installation cavity in the tank body 300.

[0044] Preferably, the foaming stirring assembly 301 includes a stirring shaft 303, a plurality of connecting rods 304 and a plurality of spiral belt stirring members 305, both ends of the stirring shaft 303 respectively pass through the tank body 300 and are rotatably connected to the tank body 300, one end of the stirring shaft 303 is fixedly connected to the output shaft of the driving member 302, the driving member 302 is used to drive the stirring shaft 303, the plurality of spiral belt stirring members 305 are cooperatively arranged in the tank body 300, and are sleeved on the outside of the stirring shaft 303, and are fixedly connected to the stirring shaft 303 through a plurality of connecting rods 304, the connecting rods 304 pass through the stirring shaft 303, and are fixedly connected to the stirring shaft 303.

[0045] Preferably, the driving member 302 is a driving motor in the prior art that can realize the functions of the utility model.

[0046] When in use, the driving member 302 drives the stirring shaft 303 to rotate, thereby driving the connecting rod 304 to rotate, and then driving the spiral belt stirring member 305 to stir the foam stock solution and the fire water. The setting of the spiral belt stirring member 305 can make the foam stock solution and the fire water fully mixed and foamed.

[0047] In order to facilitate more stable rotation between the stirring shaft 303 and the tank body 300, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that bearing seats 309 are respectively provided on both sides of the tank body 300, and the bearing seats 309 are fixedly connected to the two sides of the tank body 300 through a fixing frame 310, and the two ends of the stirring shaft 303 are rotatably connected to the tank body 300 through the bearing seats 309.

[0048] The bearing seat 309 can adopt the bearing seat 309 in the prior art that can realize the function of the utility model. The arrangement of the bearing seat 309 can make the connection between the stirring shaft 303 and the tank body 300 more stable.

[0049] In order to facilitate the connection between the output shaft of the driving member 302 and the stirring shaft 303 , this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the output shaft of the driving member 302 and the stirring shaft 303 are fixedly connected by a coupling 311 .

[0050] The coupling 311 adopts the coupling 311 in the prior art that can realize the function of the utility model. The output shaft of the driving member 302 is fixedly connected with the stirring shaft 303 through the coupling 311, so that the output shaft of the driving member 302 can drive the stirring shaft 303 to rotate.

[0051] In order to facilitate observation of the mixing and foaming of the foam concentrate and fire water, an observation window 306 is provided on the top of one side of the tank body 300, and a cover body 307 adapted to the observation window 306 is provided at the observation window 306, and the cover body 307 and the observation window 306 are detachably connected.

[0052] When observation is needed, the cover 307 is opened, and the mixing and foaming of the foam stock solution and the fire water can be observed through the observation window 306 .

[0053] In order to facilitate the installation of the tank body 300 and the driving member 302, this embodiment is modified on the basis of the above embodiment, and the difference from the above embodiment is that it also includes a mounting bracket 308, and the tank body 300 and the driving member 302 are mounted on the mounting bracket 308. The provision of the mounting bracket 308 can facilitate the installation of the tank body 300 and the driving member 302.

[0054] Working principle of this utility model:

[0055] When in use, the foam liquid stored in the foam liquid storage tank 10 enters the foaming mixing and stirring device 30 through the first delivery pipe 106 and the first liquid inlet pipe 100, and the fire water in the fire water storage tank 20 enters the foaming mixing and stirring device 30 through the second delivery pipe 110 and the second liquid inlet pipe 101, and the foam liquid and the fire water are mixed in the foaming mixing and stirring device 30 to form a foam liquid; the foam liquid enters the mixing pipe 40 through the foam liquid outlet pipe 102, the foam delivery pipe 114 and the liquid inlet 103, and the carbon dioxide in the carbon dioxide storage tank 50 enters the mixing pipe 40 through the gas delivery pipe 118 and the air inlet 104, and the carbon dioxide is mixed with the foam liquid through the mixing pipe 40 to form carbon dioxide foam; the carbon dioxide foam enters the fire sprinkler water cannon 60 through the liquid outlet 105 and the gas foam output pipe 122, and the carbon dioxide foam is sprayed to the fire scene through the fire sprinkler water cannon 60 to complete the fire extinguishing.

[0056] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A carbon dioxide foam fire extinguishing system, characterized in that: The invention comprises a foam stock liquid storage tank (10), a fire water storage tank (20), a foaming mixing and stirring device (30), a mixing pipe (40), a carbon dioxide storage tank (50) and a fire sprinkler water monitor (60); the foaming mixing and stirring device (30) is provided with a first liquid inlet pipe (100), a second liquid inlet pipe (101) and a foam liquid outlet pipe (102); and the mixing pipe (40) is provided with a liquid inlet (103), an air inlet (104) and a liquid outlet (105); The foam stock liquid storage tank (10) is connected to the first liquid inlet pipe (100) via a first delivery pipeline (106), and the first delivery pipeline (106) is provided with a first electromagnetic valve (107), a first metering pump (108) and a first non-return valve (109) in sequence; the fire water storage tank (20) is connected to the second liquid inlet pipe (101) via a second delivery pipeline (110), and the second delivery pipeline (110) is provided with a second electromagnetic valve (111), a second metering pump (112) and a second non-return valve (113) in sequence; The foam liquid outlet pipe (102) is connected to the liquid inlet (103) through a foam delivery pipe (114), and the foam delivery pipe (114) is provided with a foam solenoid valve (115), a foam pump (116) and a foam check valve (117) in sequence; the carbon dioxide storage tank (50) is connected to the gas inlet (104) through a gas delivery pipeline (118), and the gas delivery pipeline (118) is provided with a pressure reducing valve (119), a gas solenoid valve (120) and a gas check valve (121) in sequence; the liquid outlet (105) is connected to the fire sprinkler water monitor (60) through a gas foam output pipeline (122), and the gas foam output pipeline (122) is provided with an output solenoid valve (123) and an output pump (124).

2. A carbon dioxide foam fire extinguishing system according to claim 1, characterized in that: The mixing pipe member (40) comprises a first connecting pipe (400), a second connecting pipe (401) and a third connecting pipe (402) which are sealed and connected in sequence, a liquid inlet (103) is arranged at one end of the first connecting pipe (400), an air inlet (104) is arranged on the second connecting pipe (401), and a liquid outlet (105) is arranged at one end of the third connecting pipe (402).

3. A carbon dioxide foam fire extinguishing system according to claim 2, characterized in that: A blocking rod (403) is provided inside the third connecting tube (402).

4. A carbon dioxide foam fire extinguishing system according to claim 3, characterized in that: A plug connector (404) is provided at the air inlet (104), the plug connector (404) comprising an insertion tube (405) and a connection disk (406), an opening (407) is provided on the connection disk (406), one end of the insertion tube (405) is matched with the opening (407) on the connection disk (406) and is fixedly connected to the connection disk (406), the other end of the insertion tube (405) is inserted into the second connection tube (401) through the air inlet (104), and the connection disk (406) is fixedly connected to the air inlet (104).

5. A carbon dioxide foam fire extinguishing system according to claim 4, characterized in that: An inclined cut surface (408) is provided at one end of the insertion tube (405) located inside the second connecting tube (401).

6. A carbon dioxide foam fire extinguishing system according to claim 1 or 5, characterized in that: The foaming, mixing and stirring device (30) comprises a tank body (300) having an installation cavity therein, a foaming and stirring component (301) arranged in the installation cavity of the tank body (300), and a driving component (302) arranged on one side outside the tank body (300), wherein two ends of the foaming and stirring component (301) pass through two sides of the tank body (300) and are rotatably connected to the tank body (300), and one end of the foaming and stirring component (301) is connected to the driving component (302), and the driving component (302) is used to drive the foaming and stirring component (301).

7. A carbon dioxide foam fire extinguishing system according to claim 6, characterized in that: The first liquid inlet pipe (100) is arranged at the bottom of one side of the tank body (300) and is in communication with the installation cavity in the tank body (300); the second liquid inlet pipe (101) is arranged at the top of one side of the tank body (300) and is in communication with the installation cavity in the tank body (300); and the foam liquid outlet pipe (102) is arranged at the bottom of the other side of the tank body (300) and is in communication with the installation cavity in the tank body (300).

8. A carbon dioxide foam fire extinguishing system according to claim 7, characterized in that: The foaming stirring assembly (301) comprises a stirring shaft (303), a plurality of connecting rods (304) and a plurality of spiral belt-shaped stirring members (305); the two ends of the stirring shaft (303) respectively penetrate the tank body (300) and are rotatably connected to the tank body (300); one end of the stirring shaft (303) is fixedly connected to the output shaft of a driving member (302); the driving member (302) is used to drive the stirring shaft (303); the plurality of spiral belt-shaped stirring members (305) are arranged in the tank body (300) and are sleeved on the outside of the stirring shaft (303); and are fixedly connected to the stirring shaft (303) via a plurality of connecting rods (304); the connecting rods (304) penetrate the stirring shaft (303) and are fixedly connected to the stirring shaft (303).

9. A carbon dioxide foam fire extinguishing system according to claim 8, characterized in that: An observation window (306) is provided on the top of one side of the tank body (300), and a cover body (307) adapted to the observation window (306) is provided at the observation window (306), and the cover body (307) and the observation window (306) are detachably connected.

10. A carbon dioxide foam fire extinguishing system according to claim 9, characterized in that: It also includes a mounting bracket (308), on which the tank body (300) and the driving member (302) are mounted in cooperation.

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