Pneumatic type device for adjusting fluid pressure

Abstract

The invention discloses a pneumatic type fluid pressure adjusting device which comprises a gas-liquid mixing structure, a gas-liquid mixer for mixing liquid and gas is connected into the gas-liquid mixing structure, a pneumatic structure is arranged on one side of the gas-liquid mixing structure, and the gas outlet end of the pneumatic structure communicates with the gas inlet end of the gas-liquid mixing structure through a first gas supply pipe; the position, close to the gas-liquid mixing structure, of the first gas supply pipe communicates with an electric gas supply valve, a fluid supply structure is arranged on the other side of the gas-liquid mixing structure, and the fluid outlet end of the fluid supply structure communicates with the fluid inlet end of the gas-liquid mixing structure through a first fluid pipe. The position, close to the gas-liquid mixing structure, of the first fluid pipe is communicated with an electric fluid supply valve, the bottom of the gas-liquid mixing structure is communicated with discharging pipes, a pressure stabilizing control valve is communicated between the discharging pipes, the communicating position of the pressure stabilizing control valve and the discharging pipes is close to the bottom of the gas-liquid mixing structure, and the problem that fluid is difficult to fully atomize in the prior art is solved.

Description

Technical Field

[0001] The invention belongs to the field of regulating fluid pressure by using pneumatic power, and relates to a pneumatic fluid pressure regulating device. Background Art

[0002] In the agricultural field, the fluid can be liquid medicine for preventing and controlling pests, water-soluble fertilizers or biogas slurry, etc.; in the industrial field, the fluid can be water or other flowing liquids. The liquid medicine or water-soluble fertilizers in the agricultural field need to be pressurized to facilitate the spraying of these fluids more evenly onto the crops, and finally facilitate the absorption by the crops. The biogas slurry is pressurized to facilitate more uniform spraying, and finally facilitates the improvement of combustion efficiency. In the industrial field, by pressurizing water or other flowing liquids, it is convenient to spray more evenly, for example, existing buildings can be sprayed with real stone paint or imitation stone paint on the walls, and industrial water can be sprayed to reduce dust around the buildings.

[0003] Many existing fluid control systems use pressure regulators to control the fluid pressure in pipelines. Pressure reducing regulators generally receive relatively high-pressure fluid from a fluid supply source and output the fluid at a relatively low fluid pressure while providing a stable output over a wide range of output loads. Pressure regulators can use a diaphragm or a piston as a measuring element and a spring as a loading element.

[0004] The purpose of regulating fluid pressure is currently achieved by improving the nozzle. The widely used pressure atomizing nozzles and pneumatic atomizing nozzles rely on the large relative speed difference between the atomizing medium and the liquid to mainly overcome the viscosity of the liquid to atomize the liquid. The required atomizing pressure is relatively large, and the greater the viscosity, the more difficult it is to atomize. The pressure atomizing nozzle uses the pressure of the liquid itself as kinetic energy to atomize the liquid. It has a simple structure and low cost, but its atomization effect is greatly affected by load pressure reduction, and the droplet penetration is poor, and the droplet particle size is greatly affected by the viscosity of the liquid. Although the atomization performance of the pneumatic atomizing nozzle is better than that of the pressure atomizing nozzle, its atomization gas consumption is large and the energy consumption is relatively large.

[0005] It is currently difficult to fully mix different fluids and gases, whether through a fluid control system or an atomizing nozzle, and then to fully atomize the fluid so that it can act more evenly on the object to be used. Therefore, in order to solve the above-mentioned technical problems, the technical solution of the present application is provided. Summary of the invention

[0006] The purpose of the present invention is to provide a pneumatic device for regulating fluid pressure, which solves the above-mentioned technical problems.

[0007] The technical solution adopted by the present invention is as follows: A pneumatic device for regulating fluid pressure comprises a gas-liquid mixing structure, wherein a gas-liquid mixer for mixing liquid and gas is connected inside the gas-liquid mixing structure, a pneumatic structure is arranged on one side of the gas-liquid mixing structure, an air outlet end of the pneumatic structure is connected with an air inlet end of the gas-liquid mixing structure through a first air supply pipe, a connecting point between the first air supply pipe and the gas-liquid mixing structure is located at the top of the gas-liquid mixing structure, an electric air supply valve is connected at a position close to the gas-liquid mixing structure on the first air supply pipe, a fluid supply structure is arranged on the other side of the gas-liquid mixing structure, a fluid outlet end of the fluid supply structure is connected with a fluid inlet end of the gas-liquid mixing structure through the first fluid pipe, a connecting point between the first fluid pipe and the gas-liquid mixing structure is located at the lower part of the gas-liquid mixing structure, an electric fluid supply valve is connected at a position close to the gas-liquid mixing structure on the first fluid pipe, a discharge pipe is connected at the bottom of the gas-liquid mixing structure, a pressure stabilizing control valve is connected between the discharge pipes, and a connecting point between the pressure stabilizing control valve and the discharge pipe is close to the bottom of the gas-liquid mixing structure.

[0008] The working principle of the present invention is as follows: after the fluid is uniformly stirred inside the fluid supply structure, the air compressor is started to work, the compressed air is stored in the air storage tank for standby, the fluid is delivered to the gas-liquid mixing tank through the delivery pump and the filter, the delivery amount of the fluid is adjusted by the electric fluid supply valve, and the exhaust valve on the top of the gas-liquid mixing tank is opened at the same time, so that the fluid can enter the gas-liquid mixing tank; after the fluid enters the gas-liquid mixing tank, the gas input through the first air supply pipe is convenient for the initial mixing with the fluid between the inner wall of the gas-liquid mixing tank, so as to facilitate the initial increase of the pressure of the fluid; the gas-liquid mixer allows the gas and fluid after the initial mixing to be mixed again, and at the same time, the gas delivered by the first air supply pipe directly enters the gas-liquid mixer, and the gas-liquid mixer delivers gas inside the discharge pipe, so as to facilitate the increase of the pressure of the gas and fluid after the initial mixing again, and finally the fluid is discharged through the discharge end of the discharge pipe, and the discharged fluid is convenient for achieving the effect of full atomization through gas-liquid mixing, so as to facilitate uniform action on the object to be used, thereby solving the existing problem that it is difficult to fully atomize the fluid.

[0009] Furthermore: the gas-liquid mixing structure includes a vertically arranged gas-liquid mixing tank, a space for mixing gas and liquid is provided between the inner walls of the gas-liquid mixing tank, the gas-liquid mixer is located between the inner walls of the gas-liquid mixing tank and is coaxial with the gas-liquid mixing tank, one side of the top of the gas-liquid mixing tank is connected to an electric exhaust valve, and the other side of the top of the gas-liquid mixing tank is connected to a first pressure gauge.

[0010] Furthermore: the pneumatic structure includes an air compressor and an air storage tank. One side of the air compressor is connected to one side of the air storage tank through a second air supply pipe. The top of the air storage tank is connected to the air inlet end of the first air supply pipe. A one-way air supply valve is connected to the first air supply pipe near the air storage tank.

[0011] Furthermore: the top of the gas storage tank is connected to a second pressure gauge, the top of the gas storage tank is connected to a safety valve, and the air pump on the air compressor provides driving force through a diesel engine, a gasoline engine or an electric motor.

[0012] Further: the fluid supply structure includes a water supply pump and a vertically arranged fluid mixing tank, the water supply pump is located between the fluid mixing tank and the first fluid pipe, the water inlet end of the water supply pump is connected to the water outlet end of the fluid mixing tank through the second fluid pipe, the water outlet end of the water supply pump is connected to the water inlet end of the first fluid pipe, the second fluid pipe is connected to the bottom of the fluid mixing tank, one side of the top of the fluid mixing tank is connected to a water inlet, the water inlet is adapted to be equipped with a detachable sealing plug, a coaxial mixing assembly is connected to the top of the fluid mixing tank, and the mixing end of the mixing assembly is located inside the fluid mixing tank.

[0013] Furthermore: the first fluid pipe is connected to a filter, and the filter is located on a side close to the water supply pump.

[0014] Furthermore: the mixing assembly includes a driving motor arranged vertically downward, the base of the driving motor is connected to the outer wall at the top of the fluid mixing tank through a stud, the interior of the driving motor is connected to a driving shaft, the lower end of the driving shaft is connected to a mixing shaft, the mixing shaft is located between the inner walls of the fluid mixing tank, at least two groups of mixing blades are connected to the mixing shaft, and the mixing blades are all located inside the fluid mixing tank.

[0015] In some embodiments: the discharge end of the discharge pipe is connected to a discharge main pipe, both sides of the discharge main pipe are respectively connected to a plurality of discharge secondary pipes, the upper part of the discharge secondary pipe is connected to a plurality of atomizing nozzles, and the material of the discharge main pipe and the discharge secondary pipe is a hard pipe or a soft pipe.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. A pneumatic device for regulating fluid pressure, through a gas-liquid mixing tank and a gas-liquid mixer, so that the gas is pressurized twice on the fluid, so that the fluid is fully atomized, so that the fluid is sprayed more evenly, and finally it is better to act on the object to be used; 2. In the present invention, the device can provide driving force for the air compressor in a selectable manner, and can be driven by a diesel engine or a gasoline engine, and the whole device can be installed on a car or a tractor, thereby achieving the characteristics of miniaturization and mobility to meet the application requirements of different terrains; 3. In the present invention, the device is characterized in that it is dedicated to space atomization treatment, and its advantage is that the liquid can be sprayed quantitatively, the power requirement is small, and it is more energy-saving; 4. In the present invention, a water-gas mixed delivery method is adopted, so that the fluid can be better dispersed, and the particles of the liquid sprayed out are smaller and the spatial dispersion is more uniform, thereby achieving a better effect; 5. In the present invention, the device not only improves work efficiency, but also facilitates the reduction of energy consumption, and has significant economic benefits and environmental protection value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative work, among which: Figure 1 It is a schematic diagram of the structure of the present invention; Markings in the figure: 1-gas-liquid mixer, 2-first air supply pipe, 3-electric air supply valve, 4-first fluid pipe, 5-electric fluid supply valve, 6-discharge pipe, 7-pressure stabilizing control valve, 8-gas-liquid mixing tank, 9-electric exhaust valve, 10-first pressure gauge, 11-air compressor, 12-air storage tank, 13-second air supply pipe, 14-one-way air supply valve, 15-second pressure gauge, 16-safety valve, 17-water supply pump, 18-fluid mixing tank, 19-second fluid pipe, 20-water inlet, 21-sealing plug, 22-filter, 23-drive motor, 24-drive shaft, 25-mixing shaft, 26-mixing blades, 27-discharge main pipe, 28-discharge secondary pipe, 29-atomizing nozzle. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0020] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0021] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0022] Embodiment 1 The present invention provides a pneumatic device for regulating fluid pressure, such as Figure 1 As shown, it includes a gas-liquid mixing structure, the interior of the gas-liquid mixing structure is connected with a gas-liquid mixer 1 for mixing liquid and gas, a pneumatic structure is provided on one side of the gas-liquid mixing structure, the gas outlet end of the pneumatic structure is connected with the gas inlet end of the gas-liquid mixing structure through a first gas supply pipe 2, the connection point between the first gas supply pipe 2 and the gas-liquid mixing structure is located at the top of the gas-liquid mixing structure, an electric gas supply valve 3 is connected to the first gas supply pipe 2 near the gas-liquid mixing structure, a fluid supply structure is provided on the other side of the gas-liquid mixing structure, the fluid outlet end of the fluid supply structure is connected with the fluid inlet end of the gas-liquid mixing structure through a first fluid pipe 4, the connection point between the first fluid pipe 4 and the gas-liquid mixing structure is located at the lower part of the gas-liquid mixing structure, an electric fluid supply valve 5 is connected to the first fluid pipe 4 near the gas-liquid mixing structure, a discharge pipe 6 is connected to the bottom of the gas-liquid mixing structure, a pressure stabilizing control valve 7 is connected between the discharge pipes 6, and the connection point between the pressure stabilizing control valve 7 and the discharge pipe 6 is near the bottom of the gas-liquid mixing structure.

[0023] The specific implementation method of this embodiment is: according to the established requirements or formula, the required fluid is poured into the interior of the fluid supply structure for dilution and stirring to prepare a fluid of the required proportion. In the agricultural field, the fluid can be a liquid medicine for preventing and controlling pests and diseases, a water-soluble fertilizer or a biogas slurry, etc.; in the industrial field, it can be water or other flowing fluids; after the fluid is evenly stirred inside the fluid supply structure, the air compressor is started to work, and the compressed air is stored in the air storage tank for standby, and the fluid is delivered to the gas-liquid mixing tank through the delivery pump and the filter. The delivery amount of the fluid is adjusted by the electric fluid supply valve, and the exhaust valve on the top of the gas-liquid mixing tank is opened at the same time to facilitate the fluid to enter the gas-liquid mixing tank; after the fluid enters the gas-liquid mixing tank, the gas input through the first air supply pipe is convenient for initial mixing with the fluid between the inner wall of the gas-liquid mixing tank, thereby facilitating the initial increase in the pressure of the fluid.

[0024] The gas-liquid mixer allows the gas and fluid after the initial mixing to be mixed again. At the same time, the gas transported by the first air supply pipe directly enters the gas-liquid mixer. The gas-liquid mixer transports gas inside the discharge pipe, thereby facilitating the increase of the pressure of the gas and fluid after the initial mixing again, and finally allowing the fluid to be discharged through the discharge end of the discharge pipe. The discharged fluid is mixed with gas and liquid to achieve a sufficient atomization effect, thereby facilitating a uniform effect on the object to be used.

[0025] Preferably, the gas-liquid mixer is a device installed inside the gas-liquid mixing tank and connected by a flange. The gas-liquid mixer is a stainless steel tube extending from the top of the gas-liquid mixing tank to the inner wall of the discharge pipe. The diameter of the stainless steel tube is 10 mm. The device utilizes the pressure difference between the gas-liquid mixing tank and the discharge pipe. The air pressure inside the first air supply pipe is greater than the air pressure inside the discharge pipe, thereby facilitating the air pressure to be mixed again in the mixed liquid of the preliminary mixed gas and the fluid; a part of the pressurized gas is directly introduced into the stainless steel tube through the first air supply pipe, and then into the discharge pipe. Further preferably, the height of the fluid transported to the gas-liquid mixing tank by the first fluid pipe is less than the height of the top of the stainless steel tube, thereby avoiding the fluid directly entering the stainless steel tube, resulting in the gas input by the first air supply pipe being unable to enter the stainless steel tube.

[0026] Preferably, the discharge pipes are connected with a pressure-stabilizing control valve, which facilitates the control of the pressure of the fluid discharged through the discharge pipe, thereby avoiding excessive pressure directly impacting the object to be used. Further preferably, the pressure-stabilizing control valve is located below the gas outlet end of the stainless steel pipe, so that the gas output from the stainless steel pipe can be easily mixed again with the gas and liquid after the preliminary mixing inside the feed pipe.

[0027] Embodiment 2 The present invention provides a pneumatic device for regulating fluid pressure, such as Figure 1As shown, the gas-liquid mixing structure includes a vertically arranged gas-liquid mixing tank 8, a space for mixing gas and liquid is provided between the inner walls of the gas-liquid mixing tank 8, a gas-liquid mixer 1 is located between the inner walls of the gas-liquid mixing tank 8 and is coaxial with the gas-liquid mixing tank 8, one side of the top of the gas-liquid mixing tank 8 is connected to an electric exhaust valve 9, and the other side of the top of the gas-liquid mixing tank 8 is connected to a first pressure gauge 10.

[0028] The pneumatic structure includes an air compressor 11 and an air tank 12. One side of the air compressor 11 is connected to one side of the air tank 12 through a second air supply pipe 13. The top of the air tank 12 is connected to the air inlet end of the first air supply pipe 2. A one-way air supply valve 14 is connected to the first air supply pipe 2 near the air tank 12.

[0029] The top of the air storage tank 12 is connected to a second pressure gauge 15, the top of the air storage tank 12 is connected to a safety valve 16, and the air pump on the air compressor 11 provides driving force through a diesel engine, a gasoline engine or an electric motor.

[0030] The specific implementation method of this embodiment is: the space between the inner walls of the gas-liquid mixing tank is used for the first mixing of gas and fluid, and then completes the first pressurization treatment of the fluid, and the gas-liquid mixer is convenient for directly receiving part of the pressurized gas transported by the first gas supply pipe, and then transporting this part of the gas to the inside of the discharge pipe, so as to facilitate the second pressurization treatment of the gas-liquid mixture inside the discharge pipe, and the electric exhaust valve connected to the top of the gas-liquid mixing tank is convenient for discharging the gas inside the gas-liquid mixing tank, and then facilitating the first fluid pipe to transport the fluid to the inside of the gas-liquid mixing tank, and the first pressure gauge connected to the top of the gas-liquid mixing tank is used to monitor the pressure inside the gas-liquid mixing tank.

[0031] The air compressor is convenient for pressurizing the air, and the pressurized gas is transported to the gas storage tank for storage through the second air supply pipe. When it is necessary to transport pressurized gas to the gas-liquid mixing tank, the one-way air supply valve and the electric air supply valve are opened to allow the gas inside the gas storage tank to enter the gas-liquid mixing tank and the gas-liquid mixer. At the same time, the one-way air supply valve is set to avoid the excess gas being pressed back into the gas storage tank when the pressure inside the gas-liquid mixing tank is too high.

[0032] The second pressure gauge connected to the top of the gas tank is convenient for monitoring the air pressure inside the gas tank. When the air pressure inside the gas tank is too high, part of the gas can be discharged by opening the safety valve, avoiding the problem of damage caused by excessive air pressure inside the gas tank.

[0033] Preferably, by connecting a drain valve at the bottom of the gas tank, when the inside of the gas tank needs to be cleaned after being used for a period of time, the water inside the gas tank can be discharged by opening the drain valve. This water comes from the moisture in the compressed air.

[0034] Preferably, a diesel engine, a gasoline engine or an electric motor is used to provide driving force for the air pump on the air compressor, so that the device of the present application can be adapted to different driving modes and the entire device can be installed on a car or a tractor, thereby achieving the characteristics of miniaturization and mobility to meet the application requirements of different terrains.

[0035] Embodiment 3 The present invention provides a pneumatic device for regulating fluid pressure, such as Figure 1 As shown, the fluid supply structure includes a water supply pump 17 and a vertically arranged fluid mixing tank 18. The water supply pump 17 is located between the fluid mixing tank 18 and the first fluid pipe 4. The water inlet end of the water supply pump 17 is connected to the water outlet end of the fluid mixing tank 18 through the second fluid pipe 19. The water outlet end of the water supply pump 17 is connected to the water inlet end of the first fluid pipe 4. The second fluid pipe 19 is connected to the bottom of the fluid mixing tank 18. One side of the top of the fluid mixing tank 18 is connected to a water inlet 20. The water inlet 20 is adapted to be equipped with a detachable sealing plug 21. A coaxial mixing assembly is connected to the top of the fluid mixing tank 18, and the mixing end of the mixing assembly is located inside the fluid mixing tank 18.

[0036] The first fluid pipe 4 is connected to a filter 22 , and the filter 22 is located on a side close to the water supply pump 17 .

[0037] The mixing assembly includes a driving motor 23 arranged vertically downward, the base of the driving motor 23 is connected to the outer wall at the top of the fluid mixing tank 18 through a stud, the interior of the driving motor 23 is connected to a driving shaft 24, the lower end of the driving shaft 24 is connected to a mixing shaft 25, the mixing shaft 25 is located between the inner walls of the fluid mixing tank 18, and at least two groups of mixing blades 26 are connected to the mixing shaft 25, and the mixing blades 26 are all located inside the fluid mixing tank 18.

[0038] The specific implementation method of this embodiment is: open the sealing plug and then transport the fluid to be atomized into the fluid mixing tank through the water inlet. If the fluid needs to be mixed first, such as spraying pesticides, clean water and the liquid medicine need to be mixed for the first time. After the fluid enters the fluid mixing tank, the drive motor is started to work. The drive motor drives the drive shaft to rotate, the drive shaft drives the mixing shaft to rotate, and the mixing shaft drives the mixing blades to rotate. The mixing blades are convenient for driving the fluid between the inner walls of the fluid mixing tank to be fully mixed.

[0039] The mixed fluid passes between the second fluid pipe and the water supply pump, thereby starting the water supply pump to work, and the water supply pump facilitates the fluid to be transported to the inside of the first fluid pipe, and finally to the inside of the gas-liquid mixing tank.

[0040] Preferably, the filter provided on the first fluid pipe facilitates filtering of impurities in the fluid, thereby avoiding the problem of subsequent pipeline blockage caused by impurities. Further preferably, different types of filters are conveniently selected according to different media of the fluid, thereby avoiding the problem of filtering the required medium in the fluid.

[0041] Embodiment 4 The present invention provides a pneumatic device for regulating fluid pressure, such as Figure 1 As shown, the discharge end of the discharge pipe 6 is connected to a discharge main pipe 27, and both sides of the discharge main pipe 27 are respectively connected to a plurality of discharge secondary pipes 28, and the upper part of the discharge secondary pipe 28 is connected to a plurality of atomizing nozzles 29, and the material of the discharge main pipe 27 and the discharge secondary pipe 28 is a hard pipe or a soft pipe.

[0042] The specific implementation method of this embodiment is: by arranging a discharge main pipe and a discharge secondary pipe in combination, it is convenient to use the fluid discharged from the discharge pipe; for example, a discharge main pipe and several discharge secondary pipes and several atomizing nozzles can be used to spray pesticides or fluid fertilizers in the field, and can also be used for water supply; for another example, a discharge main pipe and several discharge secondary pipes, and the discharge end of the discharge secondary pipe is only connected to one atomizing nozzle, so that such a combination can be used to nebulize the atomized liquid required for respiratory tract treatment of patients.

[0043] Preferably, an atomizing nozzle is provided in the secondary discharge pipe to perform a third atomization treatment on the fluid inside the discharge pipe, so that the sprayed fluid is more uniform and dispersed, and the particles of the sprayed fluid are eventually smaller, thereby achieving a better effect.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pneumatic device for regulating fluid pressure, characterized in that: The invention comprises a gas-liquid mixing structure, wherein a gas-liquid mixer (1) for mixing liquid and gas is connected to the inside of the gas-liquid mixing structure, a pneumatic structure is provided on one side of the gas-liquid mixing structure, a gas outlet end of the pneumatic structure is connected to a gas inlet end of the gas-liquid mixing structure through a first gas supply pipe (2), a connection point between the first gas supply pipe (2) and the gas-liquid mixing structure is located at the top of the gas-liquid mixing structure, an electric gas supply valve (3) is connected to the first gas supply pipe (2) at a position close to the gas-liquid mixing structure, a fluid supply structure is provided on the other side of the gas-liquid mixing structure, a fluid outlet end of the fluid supply structure is connected to a fluid inlet end of the gas-liquid mixing structure through a first fluid pipe (4), a connection point between the first fluid pipe (4) and the gas-liquid mixing structure is located at the bottom of the gas-liquid mixing structure, an electric fluid supply valve (5) is connected to the first fluid pipe (4) at a position close to the gas-liquid mixing structure, a discharge pipe (6) is connected to the bottom of the gas-liquid mixing structure, a pressure stabilizing control valve (7) is connected between the discharge pipes (6), and a connection point between the pressure stabilizing control valve (7) and the discharge pipe (6) is close to the bottom of the gas-liquid mixing structure.

2. A pneumatic fluid pressure regulating device according to claim 1, characterized in that: The gas-liquid mixing structure comprises a gas-liquid mixing tank (8) arranged vertically, a space for mixing gas and liquid being provided between the inner walls of the gas-liquid mixing tank (8), a gas-liquid mixer (1) being located between the inner walls of the gas-liquid mixing tank (8) and being coaxial with the gas-liquid mixing tank (8), one side of the top of the gas-liquid mixing tank (8) being connected to an electric exhaust valve (9), and the other side of the top of the gas-liquid mixing tank (8) being connected to a first pressure gauge (10).

3. The pneumatic fluid pressure regulating device according to claim 1, characterized in that: The pneumatic structure comprises an air compressor (11) and an air storage tank (12); one side of the air compressor (11) is connected to one side of the air storage tank (12) via a second air supply pipe (13); the top of the air storage tank (12) is connected to the air inlet end of the first air supply pipe (2); and a one-way air supply valve (14) is connected to the first air supply pipe (2) at a position close to the air storage tank (12).

4. A pneumatic fluid pressure regulating device according to claim 3, characterized in that: The top of the air storage tank (12) is connected to a second pressure gauge (15), the top of the air storage tank (12) is connected to a safety valve (16), and the air pump on the air compressor (11) is driven by a diesel engine, a gasoline engine or an electric motor.

5. The pneumatic fluid pressure regulating device according to claim 1, characterized in that: The fluid supply structure comprises a water supply pump (17) and a vertically arranged fluid mixing tank (18); the water supply pump (17) is located between the fluid mixing tank (18) and the first fluid pipe (4); the water inlet end of the water supply pump (17) is connected to the water outlet end of the fluid mixing tank (18) via a second fluid pipe (19); the water outlet end of the water supply pump (17) is connected to the water inlet end of the first fluid pipe (4); the second fluid pipe (19) is connected to the bottom of the fluid mixing tank (18); one side of the top of the fluid mixing tank (18) is connected to a water inlet (20); a detachable sealing plug (21) is adapted on the water inlet (20); a coaxial mixing assembly is connected to the top of the fluid mixing tank (18); the mixing end of the mixing assembly is located inside the fluid mixing tank (18).

6. A pneumatic fluid pressure regulating device according to claim 5, characterized in that: The first fluid pipe (4) is connected to a filter (22), and the filter (22) is located on a side close to the water supply pump (17).

7. The pneumatic fluid pressure regulating device according to claim 5, characterized in that: The mixing assembly comprises a driving motor (23) arranged vertically downward, the base of the driving motor (23) being connected to the outer wall of the top of the fluid mixing tank (18) via a stud, the interior of the driving motor (23) being connected to a driving shaft (24), the lower end of the driving shaft (24) being connected to a mixing shaft (25), the mixing shaft (25) being located between the inner walls of the fluid mixing tank (18), the mixing shaft (25) being connected to at least two groups of mixing blades (26), and the mixing blades (26) being located inside the fluid mixing tank (18).

8. The pneumatic fluid pressure regulating device according to claim 1, characterized in that: The discharge end of the discharge pipe (6) is connected to a discharge main pipe (27), and both sides of the discharge main pipe (27) are respectively connected to a plurality of discharge secondary pipes (28), and the upper part of the discharge secondary pipe (28) is connected to a plurality of atomizing nozzles (29). The material of the discharge main pipe (27) and the discharge secondary pipe (28) is a hard pipe or a soft pipe.

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