Air purification device for breeding industry

Abstract

The invention relates to the technical field of air purification, and discloses a breeding industry air purification device which comprises a shell, a liquid storage cylinder is fixedly connected to the inner top wall of the shell, a soft cylinder is fixedly connected to the bottom of the liquid storage cylinder, an air inlet pipe penetrates through and is fixedly connected to the surface of the liquid storage cylinder, and a one-way valve is fixedly arranged at the inner bottom of the air inlet pipe; a bottom plate is fixedly connected to the bottom of the soft barrel, a water pump is fixedly arranged on the top of the shell and connected with the bottom plate and a liquid storage barrel through pipelines, an opening is formed in the bottom of the liquid storage barrel, and a purification assembly is installed at the opening. Air in a breeding house is introduced into the soft cylinder through the air inlet pipe, after the opening is opened, liquid in the liquid storage cylinder flows downwards to the soft cylinder from the opening, and gas penetrates through the liquid to flow upwards, so that the liquid and the gas are in full contact for deodorization, and the gas does not need to be conveyed into the liquid through large pressure difference; the deodorization cost can be effectively reduced, and the deodorization effect can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and specifically to an air purification device for the breeding industry. Background Art

[0002] With the industrialization of the pig breeding industry, the environmental problems in pig houses have gradually attracted people's attention. Whether in the cold winter or the hot summer, due to the large number of pigs, a large amount of feces and urine will be produced. When the pig house is not ventilated, the internal environmental pollution is relatively serious, which affects the health of live pigs. Therefore, during the process of pig breeding, it is necessary to purify the air inside the breeding room to prevent the foul smell in the breeding room from polluting the breeding environment and ensure the healthy growth of live pigs.

[0003] When purifying the odor in the pig house, the purification methods are as follows: 1. Through the water curtain method, using the water curtain to absorb part of the ammonia; 2. Adopting the acid-base neutralization method, introducing the gas to be deodorized into an acidic solution and achieving deodorization by means of acid-base neutralization. And the acidic solution has a certain depth in the reagent pool, so it has a certain pressure. At the same time, the amount of gas to be purified in the pig house is very large. The existing methods directly use a fan to pump the gas to be deodorized into the acidic solution. The working principle of the fan is to increase the flow rate at the air outlet end by rotating the fan blades to reduce the air pressure, so that the gas at the air inlet end flows towards the air outlet end. When the air outlet end is blocked by the liquid, the pressure difference between the air inlet end and the air outlet end will be reduced, thereby reducing the fluidity of the gas and even causing a phenomenon of backflow. This results in that in order to pump a large amount of gas into the acidic solution by the fan using the flow rate to transport the gas, the fan needs to have a very high power, which means that the fan needs to consume a large amount of electric energy to maintain operation, increasing the energy consumption cost of the deodorization system, and bubbles will be formed. After the bubbles float out of the liquid surface, the gas inside the bubbles does not react with the acidic solution, and the deodorization effect is not good. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an air purification device for the breeding industry, which solves the problems that a high-energy-consuming fan is required when introducing the odor into the acidic solution by a fan and the gas inside the bubbles does not react.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An air purification device for aquaculture, comprising a housing. A liquid storage cylinder is fixedly connected to the inner top wall of the housing. A flexible cylinder is fixedly connected to the bottom of the liquid storage cylinder. An air inlet pipe penetrates and is fixedly connected to the surface of the liquid storage cylinder. A one-way valve is fixedly arranged at the inner bottom of the air inlet pipe. A bottom plate is fixedly connected to the bottom of the flexible cylinder. A water pump is fixedly arranged at the top of the housing. The water pump is connected to the bottom plate and the liquid storage cylinder through pipelines. An opening is formed at the bottom of the liquid storage cylinder, and a purification component is installed at the opening. The purification component includes a telescopic seal. The side end of the telescopic seal is fixedly connected to the liquid storage cylinder. A connecting rod is fixedly connected to the bottom end of the telescopic seal. A limiting member is slidably connected to the outer wall of the connecting rod. The bottom end of the limiting member is fixedly connected to the liquid storage cylinder. A plurality of pull ropes are fixedly connected to the bottom end of the connecting rod. The other end of the pull rope is fixedly connected to the bottom plate. A fixed pulley is arranged outside the pull rope. The fixed pulley is fixedly arranged below the limiting member.

[0006] The telescopic seal includes a fixed seat. A telescopic rod member is fixedly connected to the bottom end of the fixed seat. A weighted seal head is fixedly connected to the bottom end of the telescopic rod member.

[0007] The flexible cylinder is a cylinder or bellows made of rubber material.

[0008] The purification component further includes an outer ring. The outer ring is rotatably installed inside the opening. An inner ring is coaxially arranged inside the outer ring. A plurality of shear blades are fixedly connected to the relative side of the outer ring and the inner ring. The connecting rod penetrates the inner ring. An impeller one is fixedly connected to the bottom of the inner ring.

[0009] One end of the liquid discharge pipeline of the water pump is fixedly connected to a liquid outlet pipe. The liquid outlet pipe is fixedly connected to the liquid storage cylinder.

[0010] An exhaust port is formed in the inner top wall of the housing. A spraying component is installed below the liquid outlet pipe. The spraying component includes a cover body and a connecting pipe. The inner wall of the cover body is fixedly connected to the liquid outlet pipe. The top end of the connecting pipe is slidably installed inside the liquid outlet pipe, and the bottom end of the connecting pipe is fixedly connected to a base with a cavity inside. A plurality of nozzles are fixedly arranged on the side wall of the base.

[0011] An impeller two is fixedly arranged on the inner wall of the connecting pipe. An elastic member is fixedly connected to the inner top wall of the cover body. The other end of the elastic member is fixedly connected to the base. A sealing column is fixedly connected to the upper surface of the base corresponding to the exhaust port.

[0012] A quantitative gas delivery component is installed inside the intake pipe. The quantitative gas delivery component includes an annular sealing protrusion fixedly installed on the upper inner wall of the intake pipe. A sealing rod is installed at the center of the sealing protrusion. A limiting ring is sleeved outside the sealing rod, and the outer wall of the limiting ring is fixedly connected to the inner wall of the intake pipe.

[0013] A mounting cylinder is fixedly connected to the bottom of the limiting ring. A first airbag is fixedly connected to the inner bottom wall of the mounting cylinder. The first airbag is connected to an annular second airbag through an air duct. A fixing frame is fixedly installed on the upper surface of the second airbag. One end of the fixing frame is fixedly connected to the outer wall of the intake pipe. The air duct penetrates through the intake pipe.

[0014] A connecting piece is slidably connected to the surface of the fixing frame. A floating block is fixedly connected to the bottom end of the connecting piece.

[0015] Working principle: When in use, the air in the breeding shed is introduced into the inside of the flexible cylinder through the intake pipe. The gas entering the inside of the flexible cylinder will gradually cause the flexible cylinder to expand downward. When the bottom plate descends to the bottom of the housing, the bottom plate straightens the pull rope, and the pull rope pulls the connecting rod to move upward. The upward movement of the connecting rod pushes the telescopic seal to contract, thereby opening the opening, so that the liquid inside the liquid storage cylinder enters the inside of the flexible cylinder through the opening. Under the condition of the gas-liquid density difference, the gas flows upward through the liquid, so that the two can fully contact for deodorization. There is no need for a large pressure difference to transport the gas into the liquid, which can effectively reduce the deodorization cost and improve the deodorization effect. And when the liquid passes downward through the opening, it will push the first impeller to rotate. The first impeller drives the inner ring to rotate, and the inner ring drives the shearing blades to rotate, so that the bubbles passing through the opening can be broken, and the gas inside the bubbles reacts with the liquid, thereby improving the deodorization effect on the gas.

[0016] After a period of time, the water pump pumps the liquid inside the flexible cylinder and returns it to the liquid storage cylinder through the liquid outlet pipe, the connecting pipe, the base and the nozzle. The driving force of the liquid discharged by the water pump pushes the base to slide downward, so that the sealing column withdraws from the exhaust port, so that the gas inside the liquid storage cylinder is extruded from the exhaust port by the gradually input liquid. And when the liquid passes through the connecting pipe, it drives the connecting pipe and the base to rotate through the cooperation with the second impeller, so that the nozzle rotates and sprays the liquid to form an annular water curtain. When the gas enters the housing through the gap between the cover body and the base and is discharged from the exhaust port, since the water curtain is arranged in the gap between the cover body and the base, the gas can be in full contact with the liquid again when it is discharged.

[0017] By adding a solution into the liquid storage cylinder, the liquid level is made higher than the fixed frame. Due to the buoyancy exerted by the liquid on the floating block, the floating block squeezes the second airbag upward, and the gas inside the second airbag is squeezed into the first airbag through the air duct, causing the first airbag to expand and push the sealing rod upward, thereby opening the sealing protrusion. As a result, air passes through the three-way pipe and is pushed by the air inlet pipe to open the one-way valve and enter the soft cylinder. At the same time, the soft cylinder gradually expands downward, achieving the effect of automatically opening the air inlet pipe to input air for purification until the soft cylinder expands to the maximum amplitude to open the opening. When the liquid inside the liquid storage cylinder flows downward through the opening, the decrease in the liquid level drives the floating block to descend. The floating block no longer squeezes the second airbag, and the second airbag expands to inhale the gas inside the first airbag, causing the first airbag to stop expanding and pressing against the sealing rod, so that the sealing rod closes the air inlet pipe again. Thus, no air is replenished into the soft cylinder during the gas-liquid exchange flow. After the water pump pumps the liquid back into the liquid storage cylinder, the liquid level is higher than the floating block again, thereby realizing the automatic opening and closing of the air inlet pipe for air injection and purification. By setting two sets of devices, they can be used alternately to achieve the effect of continuously purifying the air

[0018] The present invention provides an air purification device for the aquaculture industry. It has the following beneficial effects:

[0019] 1. In the present invention, the air in the aquaculture shed is introduced into the soft cylinder through the air inlet pipe. After opening the opening, the liquid inside the liquid storage cylinder flows down to the soft cylinder through the opening, and the gas passes through the liquid and flows upward, so that the two can fully contact for deodorization. There is no need for a large pressure difference to transport the gas into the liquid, which can effectively reduce the deodorization cost and improve the deodorization effect.

[0020] 2. In the present invention, the telescopic seal blocks the opening under its own gravity to prevent the liquid inside the liquid storage cylinder from flowing down through the opening. When the soft cylinder expands to the maximum amplitude, the telescopic seal is pulled upward by the pull rope to open the opening, enabling the gas-liquid flow to carry out an exchange reaction and realizing the automatic opening and closing of the opening.

[0021] 3. In the present invention, the cooperation between the liquid and the first impeller drives the shear blade to rotate, so as to break the bubbles passing through the opening, enabling the gas inside the bubbles to react with the liquid, thereby improving the deodorization effect on the gas.

[0022] 4. In the present invention, the water pump pumps the liquid inside the soft cylinder and sprays it out from the nozzle, which can react with the gas discharged from the exhaust port for a second time, further improving the deodorization effect. Description of the Drawings

[0023] Figure 1 is a three-dimensional view of the present invention;

[0024] Figure 2 is a schematic sectional view of the housing of the present invention;

[0025] Figure 3Schematic cross-sectional view of the soft cylinder and the liquid storage cylinder of the present invention;

[0026] Figure 4 of the present invention Figure 3 Enlarged view of part A;

[0027] Figure 5 Schematic internal structure view of the opening of the present invention;

[0028] Figure 6 Schematic cross-sectional view of the cover body of the present invention;

[0029] Figure 7 Schematic cross-sectional view of the connecting pipe and the liquid outlet pipe of the present invention;

[0030] Figure 8 Schematic cross-sectional view of the air inlet pipe and the installation cylinder of the present invention;

[0031] Figure 9 Schematic view of the limiting ring structure of the present invention.

[0032] Among them, 1, housing; 2, liquid storage cylinder; 3, soft cylinder; 4, air inlet pipe; 5, bottom plate; 6, purification component; 61, telescopic seal; 62, outer ring; 63, inner ring; 64, shear blade; 65, connecting rod; 66, pull rope; 68, impeller 1; 69, limiting part; 611, fixed seat; 612, telescopic rod part; 613, weight sealing head; 7, liquid outlet pipe; 8, quantitative air delivery component; 81, sealing protrusion; 82, sealing rod; 83, limiting ring; 84, installation cylinder; 85, airbag 1; 86, airbag 2; 87, fixing frame; 88, connecting piece; 89, floating block; 9, spraying component; 91, cover body; 92, connecting pipe; 93, base; 94, nozzle; 95, impeller 2; 96, elastic part; 97, sealing column; 10, water pump; 11, fixed pulley; 13, exhaust port; 14, three-way pipe; 15, opening; 17, air guide pipe. Detailed implementation manners

[0033] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to the attached Figure 1 - attached Figure 4, an embodiment of the present invention provides an air purification device for the aquaculture industry, which includes a housing 1. The inner top wall of the housing 1 is fixedly connected with a liquid storage cylinder 2. The bottom of the liquid storage cylinder 2 is fixedly connected with a flexible cylinder 3. The surface of the liquid storage cylinder 2 is penetrated and fixedly connected with an air inlet pipe 4. A one-way valve is fixedly arranged at the inner bottom of the air inlet pipe 4. The one-way valve is used to control the one-way passage of gas through the air inlet pipe 4 from top to bottom. The bottom of the flexible cylinder 3 is fixedly connected with a bottom plate 5. The outer wall of the bottom plate 5 is slidably connected with the inner wall of the housing 1. A water pump 10 is fixedly arranged at the top of the housing 1. The liquid inlet of the water pump 10 is communicated with the bottom plate 5 through a pipeline, and a certain length of the pipeline needs to be left for the lifting of the bottom plate 5. The liquid outlet of the water pump 10 is communicated with the liquid storage cylinder 2 through a pipeline. An opening 15 is opened at the bottom of the liquid storage cylinder 2. The pumping speed of the water pump 10 needs to be greater than the flow speed of the opening 15, so that the water pump 10 can pump the liquid inside the flexible cylinder 3 into the liquid storage cylinder 2, causing the flexible cylinder 3 to shrink. When the flexible cylinder 3 shrinks, the tension of the pull rope 66 disappears. At this time, the telescopic seal 61 extends to block the opening 15, so that the liquid no longer flows downward. A purification component 6 is installed at the opening 15. The purification component 6 includes a telescopic seal 61. The side end of the telescopic seal 61 is fixedly connected with the inner wall of the liquid storage cylinder 2. The bottom end of the telescopic seal 61 is fixedly connected with a connecting rod 65. The outer wall of the connecting rod 65 is slidably connected with a limiting member 69. The bottom end of the limiting member 69 is fixedly connected with the lower surface of the liquid storage cylinder 2. The bottom end of the connecting rod 65 is fixedly connected with a plurality of pull ropes 66. The other end of the pull ropes 66 is fixedly connected with the bottom plate 5. A fixed pulley 11 is slidably frictionally arranged above the pull ropes 66. The fixed pulley 11 is fixedly arranged below the limiting member 69. A pressure sensor is fixedly arranged on the inner bottom wall of the housing 1. The pressure sensor is electrically connected with a controller. The controller is electrically connected with a timer. The controller is electrically connected with the water pump 10. When the bottom plate 5 presses against the pressure sensor when the flexible cylinder 3 expands, the pressure sensor detects a pressure signal and transmits the signal to the controller. The controller starts timing through the timer and controls the operation of the water pump 10 after a period of time, realizing automatic operation. The upper and lower ends of the liquid storage cylinder 2 are respectively provided with a liquid inlet end and a liquid outlet end equipped with valves. A liquid level sensor and an acidity sensor are installed inside the liquid storage cylinder 2. The liquid level sensor is used to detect the liquid level height of the liquid inside the liquid storage cylinder 2. The controller is electrically connected with the liquid level sensor and the acidity sensor. The acidity of the solution inside the liquid storage cylinder 2 is detected through the acidity sensor. When the acidity drops to a certain value, the liquid outlet end is opened to discharge the liquid and then a liquid with a qualified acidity is added again through the liquid inlet end.

[0035] Specifically, a liquid for deodorization is added inside the liquid storage cylinder 2. For example, an acidic solution can purify the odor in the pigsty. The capacity of the liquid storage cylinder 2 is larger than that of the flexible cylinder 3. In the initial state, the flexible cylinder 3 pumps out the internal air to keep it in a relatively compressed state. The state diagram shown in the figure is the state when gas is input into the flexible cylinder 3. The telescopic seal 61 blocks the opening 15 under its own gravity to prevent the liquid inside the liquid storage cylinder 2 from flowing downward through the opening 15. When in use, the air in the breeding house is introduced into the flexible cylinder 3 through the air inlet pipe 4. The gas entering the flexible cylinder 3 will gradually cause the flexible cylinder 3 to expand downward. When the bottom plate 5 descends to the bottom of the housing 1, the bottom plate 5 straightens the pull rope 66, and the pull rope 66 pulls the connecting rod 65 to move upward. The upward movement of the connecting rod 65 pushes the telescopic seal 61 to contract, thereby opening the opening 15, enabling the liquid inside the liquid storage cylinder 2 to enter the flexible cylinder 3 through the opening 15. Under the condition of the gas-liquid density difference, the gas flows upward through the liquid, so that the two can fully contact for deodorization. There is no need to transport the gas into the liquid with a large pressure difference, which can effectively reduce the deodorization cost and improve the deodorization effect. After a period of time, the water pump 10 pumps the liquid inside the flexible cylinder 3 into the liquid storage cylinder 2 to achieve reflux, and then gas is introduced through the air inlet pipe 4 again to realize the cyclic operation of the purification device.

[0036] Please refer to the appendix Figure 4 The telescopic seal 61 includes a fixed seat 611 connected to the liquid storage cylinder 2. A telescopic rod member 612 is fixedly connected to the bottom end of the fixed seat 611. The telescopic rod member 612 is a one-way telescopic rod. A weight sealing head 613 is fixedly connected to the bottom end of the telescopic rod member 612, and the weight sealing head 613 is located directly above the opening 15.

[0037] Specifically, the connecting rod 65 is installed on the lower surface of the weight sealing head 613. The fixed seat 611 fixes the telescopic seal 61 above the opening 15. The gravity of the weight sealing head 613 pulls the telescopic rod member 612 to extend downward, so that the weight sealing head 613 inserts into the opening 15, thereby automatically blocking the opening 15. When pulled by the pull rope 66, the weight sealing head 613 moves upward.

[0038] Please refer to the appendix Figure 2 The flexible cylinder 3 is a cylinder or corrugated pipe made of rubber material.

[0039] Specifically, the flexible cylinder 3 is installed inside the housing 1, and its maximum expansion amplitude is limited by the housing 1.

[0040] Please refer to the appendix Figure 5 The purification component 6 further includes an outer ring 62. The outer ring 62 is rotatably installed inside the opening 15. An inner ring 63 is coaxially arranged inside the outer ring 62. A plurality of shear blades 64 are fixedly connected to the opposite sides of the outer ring 62 and the inner ring 63. The connecting rod 65 penetrates through the inner ring 63, and an impeller one 68 is fixedly connected to the bottom of the inner ring 63.

[0041] Specifically, when the liquid passes downward through the opening 15, it will push the first impeller 68 to rotate. The first impeller 68 drives the inner ring 63 to rotate, and the inner ring 63 drives the shearing blades 64 to rotate, so that the bubbles passing through the opening 15 can be broken, enabling the gas inside the bubbles to react with the liquid, thereby improving the deodorization effect on the gas.

[0042] Please refer to the appendix Figure 6 - appendix Figure 7 As shown in the figure, one end of the liquid discharge pipe of the water pump 10 is fixedly connected to the liquid outlet pipe 7. The liquid outlet pipe 7 is fixedly connected to the liquid storage cylinder 2. An exhaust port 13 is opened on the inner top wall of the housing 1. A spraying assembly 9 is installed below the liquid outlet pipe 7. The spraying assembly 9 includes a cover body 91 and a connecting pipe 92. The inner wall of the cover body 91 is fixedly connected to the liquid outlet pipe 7. The top end of the connecting pipe 92 is slidably installed inside the liquid outlet pipe 7, and the bottom end of the connecting pipe 92 is fixedly connected to a base 93 with a cavity inside. A plurality of nozzles 94 are fixedly arranged on the side wall of the base 93. An impeller 95 is fixedly arranged on the inner wall of the connecting pipe 92. One end of the exhaust port 13 located outside the housing 1 is connected to an activated carbon filter through an air conveying pipe for further filtration.

[0043] Specifically, the water pump 10 pumps the liquid inside the flexible cylinder 3, which flows back into the liquid storage cylinder 2 through the liquid outlet pipe 7, the connecting pipe 92, the base 93 and the nozzles 94. When the liquid passes through the connecting pipe 92, it drives the connecting pipe 92 and the base 93 to rotate through the cooperation with the impeller 95, so that the nozzles 94 rotate to spray the liquid to form an annular water curtain. When the gas enters the housing 1 through the gap between the cover body 91 and the base 93 and is discharged through the exhaust port 13, since the water curtain is arranged in the gap between the cover body 91 and the base 93, the gas can be fully contacted with the liquid when being discharged.

[0044] Please refer to the appendix Figure 6 - appendix Figure 7 As shown in the figure, an elastic member 96 is fixedly connected to the inner top wall of the cover body 91. The elastic member 96 can be made of materials with elastic force such as stainless steel springs, nickel alloy springs, titanium alloy springs, rubber elastic members 96 or elastic plastic members. The other end of the elastic member 96 is fixedly connected to the base 93. A sealing column 97 is fixedly connected to the upper surface of the base 93 corresponding to the exhaust port 13. The figure shows the schematic position of the sealing column 97 when the water pump 10 conveys the liquid.

[0045] Specifically, the elastic tension of the elastic member 96 pulls the base 93 upward to abut against the cover body 91, and makes the sealing column 97 abut against the exhaust port 13, so that the liquid entering the inside of the liquid storage cylinder 2 stays for a period of time. The driving force of the liquid discharged by the water pump 10 pushes the base 93 to slide downward, so that the sealing column 97 withdraws from the exhaust port 13, so that the gas inside the liquid storage cylinder 2 is extruded from the exhaust port 13 by the gradually input liquid, and reacts with the liquid sprayed by the spray head 94 for a second time, further improving the deodorization effect.

[0046] Please refer to the attached Figure 8 - attached Figure 9 , a quantitative gas transmission assembly 8 is installed inside the air inlet pipe 4. The quantitative gas transmission assembly 8 includes an annular sealing protrusion 81. The sealing protrusion 81 is fixedly installed on the upper inner wall of the air inlet pipe 4. A sealing rod 82 is installed at the center of the sealing protrusion 81. A limiting ring 83 is sleeved outside the sealing rod 82. The limiting ring 83 is used to limit the sealing rod 82. The outer wall of the limiting ring 83 is fixedly connected to the inner wall of the air inlet pipe 4. The sealing rod 82 includes a sealing block and a connecting rod member below. A weight block is added to the sealing block. The number of this device can be adjusted according to the size of the breeding house. In this embodiment, two sets of devices are provided. The air inlet pipes 4 of the two sets of devices are connected to the ventilation system of the breeding house through a tee pipe 14, and the air inside the breeding house is input into the air inlet pipe 4 through the ventilation system of the breeding house for purification.

[0047] Specifically, the gravity of the sealing rod 82 inserts downward into the sealing protrusion 81, thereby blocking the air from entering the soft cylinder 3 from the air inlet pipe 4.

[0048] Please refer to the attached Figure 8 - attached Figure 9 , the bottom of the limiting ring 83 is fixedly connected with an installation cylinder 84. The inner bottom wall of the installation cylinder 84 is fixedly connected with an airbag one 85. The airbag one 85 is connected with an annular airbag two 86 through a guide pipe 17. The upper surface of the airbag two 86 is fixedly installed with a fixing frame 87. One end of the fixing frame 87 is fixedly connected with the outer wall of the air inlet pipe 4. The guide pipe 17 penetrates through the air inlet pipe 4, and the connection part of the guide pipe 17 and the air inlet pipe 4 is sealed to prevent liquid leakage. A connecting member 88 is slidably connected to the surface of the fixing frame 87, and the connecting member 88 passes through the airbag two 86. The bottom end of the connecting member 88 is fixedly connected with a floating block 89. The floating block 89 is made of a buoyant material such as a hollow iron block, an air-filled floating cylinder or foam. The buoyancy of the floating block 89 is greater than the gravity of the sealing rod 82.

[0049] Specifically, by adding a solution into the interior of the liquid storage cylinder 2 to make the liquid level higher than the fixed frame 87, the buoyancy exerted by the liquid on the floating block 89 causes the floating block 89 to upwardly press the second airbag 86, and the gas inside the second airbag 86 is squeezed into the interior of the first airbag 85 through the air guide pipe 17, causing the first airbag 85 to expand and upwardly push the sealing rod 82, thereby opening the sealing protrusion 81, enabling air to pass through the three-way pipe 14 and be pushed by the air inlet pipe 4 to open the one-way valve and enter the flexible cylinder 3, and causing the flexible cylinder 3 to gradually expand downward, achieving the effect of automatically opening the air inlet pipe 4 to input air for purification until the flexible cylinder 3 expands to the maximum amplitude to open the opening 15. When the liquid inside the liquid storage cylinder 2 flows downward through the opening 15, the liquid level drops, driving the floating block 89 to descend. The floating block 89 no longer presses the second airbag 86, and the second airbag 86 expands to suck the gas inside the first airbag 85, causing the first airbag 85 to no longer expand and resist the sealing rod 82, enabling the sealing rod 82 to close the air inlet pipe 4 again, so that air is not replenished into the flexible cylinder 3 during the gas-liquid exchange flow. After the water pump 10 pumps the liquid into the liquid storage cylinder 2 again, the liquid level height is higher than the floating block 89 again, thus realizing the automatic opening and closing of the air inlet pipe 4 for air input and purification. By setting two sets of devices, they can be used alternately, thereby achieving the effect of continuously purifying the air.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made therein without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air purification device for aquaculture, comprising a housing (1), characterized in that: The inner top wall of the shell (1) is fixedly connected to a liquid storage cylinder (2), the bottom of the liquid storage cylinder (2) is fixedly connected to a flexible cylinder (3), the surface of the liquid storage cylinder (2) is fixedly connected to an air intake pipe (4) which is arranged through it, the inner bottom of the air intake pipe (4) is fixedly provided with a one-way valve, the bottom of the flexible cylinder (3) is fixedly connected to a bottom plate (5), a water pump (10) is fixedly provided on the top of the shell (1), the water pump (10) is connected to the bottom plate (5) and the liquid storage cylinder (2) through a pipeline, an opening (15) is provided at the bottom of the liquid storage cylinder (2), a purification component (6) is installed at the opening (15), and the purification component (6) is provided at the bottom of the liquid storage cylinder (2). The component (6) comprises a telescopic sealing component (61), the side end of the telescopic sealing component (61) is fixedly connected to the liquid storage cylinder (2), the bottom end of the telescopic sealing component (61) is fixedly connected to a connecting rod (65), the outer wall of the connecting rod (65) is slidably connected to a limiting component (69), the bottom end of the limiting component (69) is fixedly connected to the liquid storage cylinder (2), the bottom end of the connecting rod (65) is fixedly connected to a plurality of pull ropes (66), the other end of the pull rope (66) is fixedly connected to the bottom plate (5), and a fixed pulley (11) is arranged on the outer side of the pull rope (66), and the fixed pulley (11) is fixedly arranged below the limiting component (69).

2. The air purification device for aquaculture according to claim 1, characterized in that: The telescopic sealing member (61) comprises a fixing seat (611), the bottom end of the fixing seat (611) is fixedly connected to a telescopic rod (612), and the bottom end of the telescopic rod (612) is fixedly connected to a counterweight sealing head (613).

3. The air purification device for aquaculture according to claim 1, characterized in that: The soft cylinder (3) is a cylinder body or a bellows made of rubber material.

4. The air purification device for aquaculture according to claim 1, characterized in that: The purification component (6) also includes an outer ring (62), which is rotatably mounted inside the opening (15), and an inner ring (63) is coaxially arranged inside the outer ring (62), and a plurality of shear blades (64) are fixedly connected to the opposite side of the outer ring (62) and the inner ring (63), and the connecting rod (65) passes through the inner ring (63), and the bottom of the inner ring (63) is fixedly connected to an impeller 1 (68).

5. The air purification device for aquaculture according to claim 1, characterized in that: One end of the liquid discharge pipeline of the water pump (10) is fixedly connected to a liquid outlet pipe (7), and the liquid outlet pipe (7) is fixedly connected to the inner top of the liquid storage cylinder (2).

6. The air purification device for aquaculture according to claim 5, characterized in that: An exhaust port (13) is provided on the inner top wall of the shell (1), and a spray assembly (9) is installed below the liquid outlet pipe (7). The spray assembly (9) comprises a cover body (91) and a connecting pipe (92). The inner wall of the cover body (91) is fixedly connected to the liquid outlet pipe (7), the top end of the connecting pipe (92) is slidably installed inside the liquid outlet pipe (7), and the bottom end of the connecting pipe (92) is fixedly connected to a base (93) with a cavity inside, and a plurality of spray heads (94) are fixedly arranged on the side wall of the base (93).

7. The air purification device for aquaculture according to claim 6, characterized in that: The inner wall of the connecting pipe (92) is fixedly provided with an impeller 2 (95); the inner top wall of the cover body (91) is fixedly connected with an elastic member (96); the other end of the elastic member (96) is fixedly connected to a base (93); and a sealing column (97) is fixedly connected to the upper surface of the base (93) corresponding to the exhaust port (13).

8. The air purification device for aquaculture according to claim 1, characterized in that: A quantitative gas delivery assembly (8) is installed inside the air intake pipe (4), and the quantitative gas delivery assembly (8) comprises an annular sealing protrusion (81). The sealing protrusion (81) is fixedly installed on the upper inner wall of the air intake pipe (4). A sealing rod (82) is installed at the center of the sealing protrusion (81). A limiting ring (83) is sleeved on the outer side of the sealing rod (82), and the outer wall of the limiting ring (83) is fixedly connected to the inner wall of the air intake pipe (4).

9. The air purification device for aquaculture according to claim 8, characterized in that: The bottom of the limiting ring (83) is fixedly connected to a mounting tube (84), the inner bottom wall of the mounting tube (84) is fixedly connected to an airbag 1 (85), the airbag 1 (85) is connected to an annular airbag 2 (86) via an air guide tube (17), a fixing frame (87) is fixedly installed on the upper surface of the airbag 2 (86), one end of the fixing frame (87) is fixedly connected to the outer wall of the air intake pipe (4), and the air guide pipe (17) passes through the air intake pipe (4).

10. The air purification device for aquaculture according to claim 9, characterized in that: A connecting piece (88) is slidably connected to the surface of the fixing frame (87), and a floating block (89) is fixedly connected to the bottom end of the connecting piece (88).

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