CN115337805A

CN115337805A - Gas-liquid mixing device for fire fighting

Info

Publication number: CN115337805A
Application number: CN202210946998.9A
Authority: CN
Inventors: 赵彦卿; 王静萱; 倪震楚; 吴凤桐; 张国正
Original assignee: Tianjin Tianwu Intelligent Technology Co ltd
Current assignee: Tianjin Tianwu Intelligent Technology Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-11-15

Abstract

The invention relates to the technical field of gas-liquid mixing, in particular to a gas-liquid mixing device for fire fighting, which comprises a shell, wherein one end of the shell is fixedly communicated with a liquid inlet pipe, the other end of the shell is fixedly communicated with a spray pipe, an installation cylinder is arranged in the shell, one side of the installation cylinder is rotatably connected with a rotating disc, a connecting frame is fixed on the outer wall of the installation cylinder, the connecting frame is fixed on the inner wall of the shell, a first motor is fixed in the installation cylinder, the tail end of an output shaft of the first motor is fixed with a first gear, one side of the first gear is meshed with a second gear, and the second gear is fixed in the middle of the rotating disc; a plurality of blades are fixed on the periphery of the rotating disc in a circumferential array; according to the invention, the foam extinguishing agent is scattered and then mixed with air, so that the air can enter the foam extinguishing agent in time, the contact chance of the air and the foam extinguishing agent is increased, and the air and the foam extinguishing agent can be fully mixed.

Description

Gas-liquid mixing device for fire fighting

Technical Field

The invention relates to the field of gas-liquid mixing, in particular to a gas-liquid mixing device for fire fighting.

Background

The common protein foam is a fire extinguishing agent generated by a protein type air foam liquid, water and air through mechanical action, has good covering and cooling fire extinguishing effects, and can effectively put out a flammable liquid fire.

The prior art discloses a part of invention patents related to gas-liquid mixing, and a Chinese patent with application number of 201921925264.2 discloses a gas-liquid mixing device for fire fighting, which comprises a cylindrical shell, wherein an air pipe body is arranged inside the shell, the air pipe body comprises a first conical pipe section, a first through hole, a straight pipe section, a second conical pipe section, a pore plate and a second through hole, the outer wall of the large end of the first conical pipe section is fixed on the inner wall of the shell, the side edge of the first conical pipe section is provided with first through holes arranged in a circumferential array, the small end of the first conical pipe section is communicated with the straight pipe section, one end of the straight pipe section, far away from the first conical pipe section, is communicated with the small end of the second conical pipe section, the pore plate is fixed inside the second conical pipe section, the second through holes arranged in a circumferential array are arranged on the plate surface of the pore plate, the side edge of the shell is connected with a liquid inlet pipe, and an area defined by the inner wall of the shell and the outer wall of the air pipe body is communicated with the liquid inlet pipe.

In the prior art, a gas-liquid mixing device for fire fighting is mostly used for simply carrying out short-time contact mixing in the process of mixing a foam extinguishing agent and air, and in the mixing process, the gas and the liquid have relatively weak effects, so that the gas and the liquid are difficult to be fully mixed.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a gas-liquid mixing device for fire fighting.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a gas-liquid mixing device for fire fighting comprises a shell, wherein one end of the shell is fixedly communicated with a liquid inlet pipe, the other end of the shell is fixedly communicated with a spray pipe, an installation cylinder is arranged in the shell, one side of the installation cylinder is rotatably connected with a rotating disc,

a connecting frame is fixed on the outer wall of the mounting cylinder, the connecting frame is fixed on the inner wall of the shell, a first motor is fixed inside the mounting cylinder, a first gear is fixed at the tail end of an output shaft of the first motor, a second gear is meshed with one side of the first gear, and the second gear is fixed in the middle of the rotating disc;

a plurality of blades are fixed on the periphery of the rotating disc in a circumferential array mode, an air conveying mechanism is arranged on each blade, and the air conveying mechanism is used for conveying air outside the shell into the shell.

Preferably, gas transmission mechanism includes air pump, gas storage chamber, gas transmission groove, a plurality of venthole, intercommunicating pore, the inside at an installation section of thick bamboo is fixed to the air pump, the inlet end of air pump passes through pipe and the outside intercommunication of casing, the inside at the rolling disc is seted up in the gas storage chamber, the end of giving vent to anger of air pump passes through pipe and the inside rotation intercommunication in gas storage chamber, the inside at the blade is seted up in the gas transmission groove, the intercommunicating pore is seted up on the inner wall in gas transmission groove, the intercommunicating pore runs through behind the gas transmission groove and is linked together, and is a plurality of the venthole is seted up on the outer wall of blade, the venthole communicates with the gas transmission groove mutually.

Preferably, the gas transmission groove comprises perpendicular groove and a plurality of cross slot, erect groove and a plurality of cross slot and all set up in the inside of blade, it is a plurality of the cross slot symmetry is set up in the both sides of erecting the groove, it is provided with the gas-supply pipe to erect inslot portion, the inlet end of gas-supply pipe passes the intercommunicating pore and is linked together with the gas storage chamber, the end of giving vent to anger of gas-supply pipe is linked together with perpendicular groove, follows the end of giving vent to anger of gas-supply pipe is to the inlet end direction the length of cross slot reduces in proper order.

Preferably, a plurality of inner grooves are formed in the blade, a plurality of first liquid-permeable holes are formed in the two sides of each inner groove, a moving plate is connected to the inner portions of the inner grooves in a sliding mode, second liquid-permeable holes corresponding to the first liquid-permeable holes are formed in the moving plate, and springs are fixed between the two ends of the moving plate and the inner walls of the inner grooves.

Preferably, the blade is hinged with a shaking plate, and two ends of the shaking plate are elastically connected with the blade through torsion springs.

Preferably, feed liquor pipe tip is provided with the installation cover, the installation cover rotates to be connected in the outside of feed liquor pipe, the end fixing of installation cover has the shower nozzle that a plurality of slopes set up, the one end of installation cover is fixed with the third gear, one side meshing of third gear has the fourth gear, fourth gear rotates and connects on the inner wall of casing, one side coaxial fixation of fourth gear has the second motor, one side of second motor is fixed with the baffle, the baffle is fixed on the inner wall of casing, the baffle rotates the cover and establishes the outside of installation cover.

Preferably, the outer wall of the rotating disc is rotatably connected with stirring columns, the stirring columns are arranged between adjacent blades, bevel gears are fixed at the top ends of the stirring columns, gear rings are fixed on the inner wall of the shell, and the gear rings are meshed with the bevel gears.

Preferably, the inside of spray tube is provided with rocks the mechanism, it is used for the bubble membrane fire extinguishing agent to rock the mechanism, it includes arc, guiding groove to rock the mechanism, the arc is along the direction sliding connection of spray tube on the inner wall of spray tube, the one end of arc is fixed with the promotion strip, the top that promotes the strip is fixed with the promotion round pin, the guiding groove is seted up on the lateral wall of rolling disc, the guiding groove is by four arcs and the crisscross intercommunication setting of four protruding grooves, protruding groove all sets up the position between two blades that correspond, promote round pin sliding connection in the inside of guiding groove, the one end that the promotion round pin was kept away from to the arc is fixed with the otter board.

Preferably, a plurality of arc strips are fixed on the inner wall of the arc plate, and the arc strips are arranged on the arc plate in a linear array manner.

Preferably, a shunting cone is fixed on one side of the rotating disc far away from the mounting cylinder, and one end of the shunting cone far away from the rotating disc is conical.

Compared with the prior art, the invention has the following beneficial effects:

1. when fire is extinguished, the foam extinguishing agent is conveyed into the shell from the liquid inlet pipe through the peripheral conveying equipment, the first motor is started, the output shaft of the first motor drives the first gear to rotate, the first gear drives the second gear to rotate, the rotating disc is made to rotate on the mounting cylinder, the blades are further driven to rotate, the foam extinguishing agent sprayed to the blades is impacted through the rotating blades, the foam extinguishing agent is scattered, air outside the shell is synchronously conveyed into the shell through the starting air conveying mechanism, the air is sprayed out of the blades, the scattered foam extinguishing agent can be mixed with the air in time for foaming, the foam extinguishing agent is scattered and then mixed with the air, the air can timely enter the foam extinguishing agent, the contact chance between the air and the foam extinguishing agent is increased, and further the air and the foam extinguishing agent can be fully mixed.

2. Through setting up the gas-supply pipe, make gaseous entering gas storage chamber after, can only follow the gas-supply pipe flow direction and erect the groove and keep away from the one end in gas storage chamber, because the horizontal groove length that is close to the gas-supply pipe end of giving vent to anger is longer, and the horizontal groove length of keeping away from the gas-supply pipe end of giving vent to anger shortens gradually, and then make gaseous along the distance of horizontal groove flow direction venthole close, be favorable to making gaseous flow from the venthole simultaneously, thereby make each venthole department homoenergetic evenly can have air to emerge, and then the gaseous homoenergetic that is favorable to the venthole department of each position mixes with liquid even contact, thereby be favorable to the intensive mixing of air and foam liquid fire extinguishing agent.

3. When the rolling disc rotates, under the guiding action of guiding groove, when protruding groove removes to pushing pin position, under the guiding action of protruding groove, the pulling pushes the round pin and removes to the one side that is close to the rolling disc, thereby drive the promotion strip through pushing the round pin, the arc, the otter board removes to the one side that is close to the rolling disc, when the arc removes to pushing pin position, under the guiding action of arc, can promote and push the round pin and reset, and then make the arc remove to the one side of keeping away from the rolling disc, and then make the arc can reciprocating motion in the spray tube, be favorable to driving the interior foaming back foam extinguishing agent of spray tube through arc and otter board and rock, under the effect of rocking, be favorable to making the liquid foam extinguishing agent that does not foam and air further mix.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an overall cross-sectional view of the present invention;

FIG. 3 is a schematic diagram of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the overall structure of the present invention (with the housing, liquid inlet pipe, and spray pipe removed);

FIG. 5 is a schematic structural view of the present invention with the whole section (with the casing, the liquid inlet pipe and the nozzle removed);

FIG. 6 is a schematic diagram of the structure at B in FIG. 5 according to the present invention;

FIG. 7 is a schematic view of a first overall cross-sectional rear structure of the present invention;

FIG. 8 is a schematic view of the structure of FIG. 7 at C;

FIG. 9 is a schematic diagram of the structure of FIG. 8 at D in accordance with the present invention;

FIG. 10 is a second overall sectional rear view of the present invention;

FIG. 11 is a schematic diagram of the structure at E of FIG. 10 in accordance with the present invention;

FIG. 12 is a schematic view (another view) of the overall structure of the present invention (with the housing, liquid inlet pipe, and spray pipe removed);

FIG. 13 is a schematic view of the structure of FIG. 12 at F in accordance with the present invention;

fig. 14 is a schematic diagram of the structure at G in fig. 12 according to the present invention.

In the figure: 1. a housing; 2. a liquid inlet pipe; 3. a nozzle; 4. mounting the cylinder; 5. rotating the disc; 6. a connecting frame; 7. a first motor; 8. a first gear; 9. a second gear; 10. a blade; 11. an air pump; 12. a gas storage cavity; 13. a gas transmission groove; 14. an air outlet; 15. a communicating hole; 16. a vertical slot; 17. a transverse groove; 18. a gas delivery pipe; 19. an inner tank; 20. a first liquid-permeable hole; 21. moving the plate; 22. a second liquid-permeable hole; 23. a spring; 24. a shaking plate; 25. installing a sleeve; 26. a spray head; 27. a third gear; 28. a fourth gear; 29. a second motor; 30. a partition plate; 31. agitating the column; 32. a bevel gear; 33. a gear ring; 34. an arc-shaped plate; 35. a guide groove; 36. a push bar; 37. pushing the pin; 38. an arc-shaped slot; 39. a raised groove; 40. an arc-shaped strip; 41. a spreader cone; 42. a mesh plate.

Detailed Description

The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1 to 14, the gas-liquid mixing device for fire fighting comprises a shell 1, one end of the shell 1 is fixedly communicated with a liquid inlet pipe 2, the other end of the shell 1 is fixedly communicated with a spray pipe 3, an installation cylinder 4 is arranged in the shell 1, one side of the installation cylinder 4 is rotatably connected with a rotating disc 5,

a connecting frame 6 is fixed on the outer wall of the mounting cylinder 4, the connecting frame 6 is fixed on the inner wall of the shell 1, a first motor 7 is fixed inside the mounting cylinder 4, a first gear 8 is fixed at the tail end of an output shaft of the first motor 7, a second gear 9 is meshed with one side of the first gear 8, and the second gear 9 is fixed in the middle of the rotating disc 5;

a plurality of blades 10 are fixed on the periphery of the rotating disc 5 in a circumferential array, and an air conveying mechanism is arranged on each blade 10 and used for conveying air outside the shell 1 into the shell 1; during working, in the fire-fighting gas-liquid mixing device in the prior art, in the process of mixing the foam extinguishing agent and air, contact mixing is carried out for a short time, in the mixing process, gas and liquid have relatively weak effects, so that the gas and the liquid are difficult to be fully mixed, the embodiment of the invention can solve the problems.

As a further embodiment of the present invention, the gas delivery mechanism comprises an air pump 11, a gas storage chamber 12, a gas delivery groove 13, a plurality of gas outlet holes 14, and a communication hole 15, the air pump 11 is fixed inside the mounting cylinder 4, the gas inlet end of the air pump 11 is communicated with the outside of the housing 1 through a conduit, the gas storage chamber 12 is opened inside the rotary disk 5, the gas outlet end of the air pump 11 is rotatably communicated with the inside of the gas storage chamber 12 through a conduit, the gas delivery groove 13 is opened inside the blade 10, the communication hole 15 is opened on the inner wall of the gas delivery groove 13, the communication hole 15 penetrates through the gas delivery groove 13 and is communicated with the gas storage chamber 12, the plurality of gas outlet holes 14 are opened on the outer wall of the blade 10, and the gas outlet holes 14 are communicated with the gas delivery groove 13; during operation, through starting air pump 11, inside air pump 11 inhales outside gas into gas storage chamber 12 through the pipe of inlet end, gas gets into inside gas storage chamber 12 back, passes intercommunicating pore 15, discharge from a plurality of ventholes 14 after flowing along gas transmission groove 13, thereby realize discharging air in blade 10 pivoted simultaneously, and carry out air escape by the multiple spot portion on blade 10 surface, be favorable to breaking up the back at blade 10 with the foam extinguishing agent, make the air of dispersion in time mix with the foam extinguishing agent, make the air in time get into inside the foam extinguishing agent, increase the chance of contact of air and foam extinguishing agent, and then be favorable to the intensive mixing of air and foam extinguishing agent.

As a further embodiment of the invention, the gas transmission groove 13 is composed of a vertical groove 16 and a plurality of transverse grooves 17, the vertical groove 16 and the transverse grooves 17 are both arranged inside the blade 10, the transverse grooves 17 are symmetrically arranged at two sides of the vertical groove 16, a gas transmission pipe 18 is arranged inside the vertical groove 16, the gas inlet end of the gas transmission pipe 18 passes through the communication hole 15 and is communicated with the gas storage cavity 12, the gas outlet end of the gas transmission pipe 18 is communicated with the vertical groove 16, and the lengths of the transverse grooves 17 along the direction from the gas outlet end to the gas inlet end of the gas transmission pipe 18 are sequentially reduced; when the gas storage device works, due to the fact that the distances between the gas outlet holes 14 and the communication holes 15 are different, the strength of gas flowing out of the gas outlet holes 14 far away from the communication holes 15 is weak, and the situation that the gas and liquid at the positions of the gas outlet holes 14 far away from the communication holes 15 are not uniformly mixed is caused.

As a further embodiment of the invention, a plurality of inner grooves 19 are formed in the blade 10, a plurality of first liquid-permeable holes 20 are formed in both sides of each inner groove 19, a moving plate 21 is slidably connected in each inner groove 19, second liquid-permeable holes 22 corresponding to the first liquid-permeable holes 20 are formed in each moving plate 21, and springs 23 are fixed between both ends of each moving plate 21 and the inner wall of each inner groove 19; when the foam extinguishing agent works, when the foam extinguishing agent impacts the blades 10, part of liquid directly passes through a gap between the two blades 10, so that part of liquid is difficult to be fully mixed, the first liquid penetrating holes 20 and the second liquid penetrating holes 22 are arranged, so that when the liquid impacts the blades 10, part of the liquid can directly pass through the first liquid penetrating holes 20 and the second liquid penetrating holes 22, the quantity of the liquid passing through the two blades 10 is reduced, the moving plate 21 is arranged, the liquid impacts the blades 10 in the rotating process of the blades 10, the blades 10 are shaken, the moving plate 21 is driven to move in the inner groove 19, and after the moving plate 21 moves under the action of the elastic force of the spring 23, the moving plate 21 can perform short-distance reciprocating movement, so that the first liquid penetrating holes 20 and the second liquid penetrating holes 22 are intermittently closed, the liquid is intermittently blocked, the liquid is further favorably dispersed into small-particle liquid, the contact chance between air and the liquid is increased, and the full mixing of the air and the liquid is facilitated.

As a further embodiment of the invention, a shaking plate 24 is hinged on the blade 10, and both ends of the shaking plate 24 are elastically connected with the blade 10 through torsion springs; during operation, through setting up shake board 24, shake board 24's both ends all are provided with the torsional spring, and the installation opposite direction of torsional spring, and then make shake board 24 can maintain vertical state with blade 10, when receiving the liquid striking, shake board 24 can take place the upset, under the spring action of torsional spring, can in time reset after shaking board 24 overturns, and take place the shake, under the shake effect, shake board 24 can initiatively strike liquid, and then be favorable to shaking board 24 to striking the dispersion to liquid, and then increase the contact chance of air and liquid, be favorable to air and liquid intensive mixing.

As a further embodiment of the present invention, a mounting sleeve 25 is disposed at an end portion of the liquid inlet pipe 2, the mounting sleeve 25 is rotatably connected to an outer side of the liquid inlet pipe 2, a plurality of nozzles 26 are fixed to an end portion of the mounting sleeve 25, a third gear 27 is fixed to one end of the mounting sleeve 25, a fourth gear 28 is engaged with one side of the third gear 27, the fourth gear 28 is rotatably connected to an inner wall of the housing 1, a second motor 29 is coaxially fixed to one side of the fourth gear 28, a partition plate 30 is fixed to one side of the second motor 29, the partition plate 30 is fixed to an inner wall of the housing 1, and the partition plate 30 is rotatably sleeved to an outer side of the mounting sleeve 25; in operation, in the process of the rotation of the blade 10, by starting the second motor 29, the output shaft of the second motor 29 drives the fourth gear 28 to rotate, the third gear 27 is driven to rotate by the fourth gear 28, the third gear 27 is driven to rotate by the mounting sleeve 25, the spray head 26 is driven to rotate by the mounting sleeve 25, and by adjusting the rotation direction of the second motor 29, the rotation direction of the spray head 26 is opposite to the rotation directions of the blade 10 and the shaking plate 24, so that the liquid is sprayed out, the liquid is opposite to the shaking plate 24, the liquid can directly impact the rotating blade 10, and the liquid dispersing effect can be enhanced.

As a further embodiment of the present invention, the outer wall of the rotating disk 5 is rotatably connected with stirring columns 31, the stirring columns 31 are disposed between adjacent blades 10, the top ends of the stirring columns 31 are fixed with bevel gears 32, the inner wall of the housing 1 is fixed with a gear ring 33, and the gear ring 33 is engaged with the bevel gears 32; the specific working mode is that when the rotating disc 5 rotates, the bevel gear 32 at the top end of the stirring column 31 is driven to do circular motion along the inner wall of the gear ring 33, so that the bevel gear 32 moves relative to the gear ring 33, the bevel gear 32 is driven to rotate through the meshing action of the gear ring 33 and the bevel gear 32, the bevel gear 32 drives the stirring column 31 to rotate after rotating, the stirring column 31 is driven to rotate synchronously in the process of rotating along with the rotating disc 5, and then the liquid flowing through the gaps between the adjacent blades 10 is stirred, so that the full mixing of the liquid splashed from the gaps and air is enhanced.

As a further embodiment of the present invention, a shaking mechanism is arranged inside the spray pipe 3, the shaking mechanism is used for shaking the foam membrane fire extinguishing agent, the shaking mechanism comprises an arc plate 34 and a guide groove 35, the arc plate 34 is slidably connected to the inner wall of the spray pipe 3 along the direction of the spray pipe 3, one end of the arc plate 34 is fixed with a pushing strip 36, the top end of the pushing strip 36 is fixed with a pushing pin 37, the guide groove 35 is opened on the side wall of the rotating disc 5, the guide groove 35 is formed by four arc grooves 38 and four protruding grooves 39 which are alternately communicated, the protruding grooves 39 are all arranged at positions between the two corresponding blades 10, the pushing pin 37 is slidably connected inside the guide groove 35, and one end of the arc plate, which is far away from the pushing pin 37, is fixed with a mesh plate 42; when the automatic foam-type fire extinguishing device works, when the rotating disc 5 rotates, under the guiding action of the guide groove 35, when the protruding groove 39 moves to the position of the pushing pin 37, under the guiding action of the protruding groove 39, the pushing pin 37 is pulled to move towards one side close to the rotating disc 5, so that the pushing pin 37 drives the pushing strip 36, the arc-shaped plate 34 and the screen plate 42 to move towards one side close to the rotating disc 5, when the arc-shaped groove 38 moves to the position of the pushing pin 37, under the guiding action of the arc-shaped groove 38, the pushing pin 37 can be pushed to reset, the arc-shaped plate 34 moves towards one side far away from the rotating disc 5, the arc-shaped plate 34 can move in the spray pipe 3 in a reciprocating mode, the foam-type fire extinguishing agent can be driven to shake in the spray pipe 3 through the arc-shaped plate 34 and the screen plate 42, and under the shaking action, the non-foamed liquid foam-type fire extinguishing agent and air can be further mixed.

As a further embodiment of the present invention, a plurality of arc-shaped strips 40 are fixed on the inner wall of the arc-shaped plate 34, and the plurality of arc-shaped strips 40 are arranged on the arc-shaped plate 34 in a linear array; during operation, through set up arc strip 40 on arc 34, be favorable to increasing the frictional force of arc 34, and then be convenient for arc 34 to drive the foam extinguishing agent of foaming and rock.

As a further embodiment of the present invention, a shunting cone 41 is fixed on one side of the rotating disc 5 far away from the installation cylinder 4, and one end of the shunting cone 41 far away from the rotating disc 5 is conical; during operation, the diversion cone 41 is arranged, so that liquid at the position of the rotating disc 5 can directly move along the conical surface of the diversion cone 41 in the direction of the fan blades, and the liquid and the fan blades can be contacted conveniently.

The working principle of the invention is as follows:

when fire is extinguished, foam extinguishing agent is conveyed into the shell 1 from the liquid inlet pipe 2 through the peripheral conveying equipment, the first motor 7 is started, the output shaft of the first motor 7 drives the first gear 8 to rotate, the first gear 8 drives the second gear 9 to rotate, so that the rotating disc 5 rotates on the mounting cylinder 4 and further drives the blades 10 to rotate, the foam extinguishing agent sprayed to the blades 10 is impacted through the rotating blades 10, so that the foam extinguishing agent is scattered, air outside the shell 1 is synchronously conveyed into the shell 1 through the starting of the air conveying mechanism and is sprayed out from the blades 10, so that the scattered foam extinguishing agent can be mixed with the air in time for foaming, and the embodiment is favorable for enabling the air to enter the interior of the foam extinguishing agent in time through scattering the foam extinguishing agent and then mixing with the air, so that the contact chance of the air and the foam extinguishing agent is increased, and further favorable for the full mixing of the air and the foam extinguishing agent.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a gas-liquid mixture device that fire control was used, includes casing (1), the fixed intercommunication of one end of casing (1) has feed liquor pipe (2), the fixed intercommunication of the other end of casing (1) has spray tube (3), its characterized in that: an installation cylinder (4) is arranged in the shell (1), one side of the installation cylinder (4) is rotatably connected with a rotating disc (5),

a connecting frame (6) is fixed on the outer wall of the mounting cylinder (4), the connecting frame (6) is fixed on the inner wall of the shell (1), a first motor (7) is fixed inside the mounting cylinder (4), a first gear (8) is fixed at the tail end of an output shaft of the first motor (7), a second gear (9) is meshed with one side of the first gear (8), and the second gear (9) is fixed in the middle of the rotating disc (5);

a plurality of blades (10) are fixed on the periphery of the rotating disc (5) in a circumferential array mode, an air conveying mechanism is arranged on each blade (10), and the air conveying mechanism is used for conveying air outside the shell (1) into the shell (1).

2. A fire fighting gas-liquid mixing device as defined in claim 1, characterized in that: gas transmission mechanism includes air pump (11), gas storage chamber (12), gas transmission groove (13), a plurality of venthole (14), intercommunicating pore (15), the inside at installation section of thick bamboo (4) is fixed in air pump (11), the inlet end of air pump (11) passes through pipe and casing (1) outside intercommunication, the inside in rolling disc (5) is seted up in gas storage chamber (12), the end of giving vent to anger of air pump (11) passes through pipe and gas storage chamber (12) inside rotation intercommunication, the inside in blade (10) is seted up in gas transmission groove (13), intercommunicating pore (15) are seted up on the inner wall in gas transmission groove (13), intercommunicating pore (15) run through behind gas transmission groove (13) and are linked together with gas storage chamber (12), and are a plurality of venthole (14) are seted up on the outer wall of blade (10), venthole (14) are linked together with gas transmission groove (13).

3. A fire fighting gas-liquid mixing device according to claim 2, characterized in that: gas transmission groove (13) are by erecting groove (16) and a plurality of transverse groove (17) and constitute, erect groove (16) and a plurality of transverse groove (17) and all set up in the inside of blade (10), and are a plurality of the both sides of erecting groove (16) are set up to transverse groove (17) symmetry, erect groove (16) inside and be provided with gas-supply pipe (18), the inlet end of gas-supply pipe (18) passes intercommunicating pore (15) and is linked together with gas storage chamber (12), the end of giving vent to anger of gas-supply pipe (18) is linked together with erecting groove (16), follows the end of giving vent to anger of gas-supply pipe (18) is held to the inlet end direction the length of transverse groove (17) reduces in proper order.

4. A fire fighting gas-liquid mixing device according to claim 1, characterized in that: the novel blade is characterized in that a plurality of inner grooves (19) are formed in the blade (10), a plurality of first liquid-permeable holes (20) are formed in two sides of each inner groove (19), a moving plate (21) is connected to the inner portions of the inner grooves (19) in a sliding mode, second liquid-permeable holes (22) corresponding to the first liquid-permeable holes (20) are formed in the moving plate (21), and springs (23) are fixed between two ends of the moving plate (21) and the inner walls of the inner grooves (19) jointly.

5. A fire fighting gas-liquid mixing device as defined in claim 1, characterized in that: the blade (10) is hinged with a shaking plate (24), and two ends of the shaking plate (24) are elastically connected with the blade (10) through torsion springs.

6. A fire fighting gas-liquid mixing device as defined in claim 5, characterized in that: feed liquor pipe (2) tip is provided with installation cover (25), installation cover (25) rotate to be connected in the outside of feed liquor pipe (2), the end fixing of installation cover (25) has shower nozzle (26) that a plurality of slopes set up, the one end of installation cover (25) is fixed with third gear (27), one side meshing of third gear (27) has fourth gear (28), fourth gear (28) rotate to be connected on the inner wall of casing (1), one side coaxial fixed with second motor (29) of fourth gear (28), one side of second motor (29) is fixed with baffle (30), baffle (30) are fixed on the inner wall of casing (1), baffle (30) rotate the cover and establish the outside of installation cover (25).

7. A fire fighting gas-liquid mixing device as defined in claim 1, characterized in that: the outer wall of the rotating disc (5) is connected with stirring columns (31) in a rotating mode, the stirring columns (31) are arranged between adjacent blades (10), bevel gears (32) are fixed at the top ends of the stirring columns (31), gear rings (33) are fixed on the inner wall of the shell (1), and the gear rings (33) are meshed with the bevel gears (32).

8. A fire fighting gas-liquid mixing device according to claim 1, characterized in that: the inside of spray tube (3) is provided with rocks the mechanism, it is used for the bubble membrane fire extinguishing agent to rock the mechanism, it includes arc (34), guiding groove (35) to rock the mechanism, arc (34) along the direction sliding connection of spray tube (3) on the inner wall of spray tube (3), the one end of arc (34) is fixed with promotes strip (36), the top that promotes strip (36) is fixed with promotes round pin (37), guiding groove (35) are seted up on the lateral wall of rolling disc (5), guiding groove (35) are by four arc (38) and the crisscross intercommunication setting of four protruding groove (39), protruding groove (39) all set up the position between two blade (10) that correspond, promote round pin (37) sliding connection in the inside of guiding groove (35), the arc is kept away from the one end that promotes round pin (37) and is fixed with otter board (42).

9. A fire fighting gas-liquid mixing device as defined in claim 8, characterized in that: a plurality of arc strips (40) are fixed on the inner wall of the arc plate (34), and the arc strips (40) are arranged on the arc plate (34) in a linear array mode.

10. A fire fighting gas-liquid mixing device as defined in claim 1, characterized in that: a shunting cone (41) is fixed on one side, away from the mounting cylinder (4), of the rotating disc (5), and one end, away from the rotating disc (5), of the shunting cone (41) is conical.