Breathing valve with gas recovery function

Abstract

The utility model relates to the technical field of breathing valve, and disclose a breathing valve with recovery gas function, the utility model scheme when the gas pressure in the jar body rises, the gas flows outward through the cavity of valve body, makes the gas enter into two sides two sides air duct simultaneously, with the flow of gas makes the fan blade rotate, thereby drives the connecting rod and the brush rotation through the rotation of the pivot, prevent the solid material in the gas from adhering on the air duct inner wall, the gas after purification is filtered and is discharged after the filter layer, thereby the staff is convenient to the collection after the filtration gas, if needing to replace the filter layer, press the fixed block to make it separate from the fixed hole, take out the mounting plate after the compression first spring, unfasten the fixed block after replacement, spring rebound makes it to be fixed in the fixed hole, thereby the staff is convenient to the filter layer replacement regularly, this design can balance the inside and outside air pressure of jar body, can recover part gas and keep the valve body inside clean, improve security and environmental protection.

Description

Technical Field

[0001] This utility model belongs to the field of breathing valve technology, specifically a breathing valve with gas recovery function. Background Technology

[0002] In the fields of petrochemicals, storage and transportation, storage tanks experience pressure fluctuations due to temperature changes or during loading and unloading. Traditional breather valves balance the pressure inside and outside the tank by directly releasing oil and gas. However, these oil and gas contain a large amount of volatile organic compounds, hydrogen sulfide and other harmful components, which not only wastes resources but also pollutes the environment and poses safety hazards when directly released. At the same time, high-boiling-point components and particulate matter in the oil and gas are prone to condensation and deposition on the inner wall of the valve body and sealing components, affecting the normal operation of the breather valve. Therefore, in view of the current situation, it is necessary to improve it. Utility Model Content

[0003] In response to the above situation and to overcome the shortcomings of the existing technology, this utility model provides a breather valve with gas recovery function, which effectively solves the problem that in the fields of petrochemicals, storage and transportation, pressure fluctuations occur in storage tanks during temperature changes or loading and unloading processes. Traditional breather valves balance the pressure inside and outside the tank by directly discharging oil and gas. However, these oil and gas contain a large amount of volatile organic compounds, hydrogen sulfide and other harmful components, which not only wastes resources, but also pollutes the environment and poses safety hazards when directly discharged. At the same time, high-boiling-point components and particulate matter in the oil and gas are prone to condensation and deposition on the inner wall of the valve body and sealing components, affecting the normal operation of the breather valve.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a breathing valve with gas recovery function, comprising a valve body, a cavity, and an air duct. The cavity is disposed inside the valve body. The air duct is configured in two sets, with each set located on one side of the valve body cavity. A rotating shaft is connected to the interior of each set of air ducts. Fan blades are connected to the outer walls of each set of rotating shafts. A connecting rod is connected to the outer walls of each set of rotating shafts. A brush plate is connected to the outer walls of each connecting rod. A connecting pipe is connected to the top of the valve body. A mounting plate is connected inside the connecting pipe. A filter layer is connected inside the mounting plate. First springs are connected to both sides of the top interior of the mounting plate. A fixing block is connected to one end of each of the first springs. Fixing holes are provided on both sides of the outer wall of the connecting pipe.

[0005] Preferably, the filter layer is composed of activated carbon, silica gel, and molecular sieve adsorbents, and limiting plates are connected to both sides of the inner wall of the connecting pipe. The size of the mounting plate is equal to the distance between the limiting plates on both sides.

[0006] Preferably, the right end of the mounting plate is connected to a handle, which is made of stainless steel.

[0007] Preferably, a second spring is connected inside the valve body, one end of the second spring is connected to a baffle, a third spring is connected to the upper part of the valve body cavity, one end of the third spring is connected to a sealing valve core, a fourth spring is connected inside the sealing valve core, one end of the fourth spring is connected to a sealing block, and a sealing gasket is connected to the outer wall of the sealing block.

[0008] Preferably, stabilizing rods are connected to both sides of the bottom of the sealing block, and one end of each stabilizing rod is located inside the sealing block.

[0009] Preferably, a retaining ring is screwed onto the outer wall of the valve body, and a sealing ring is fixedly connected to the top of the retaining ring, the sealing ring having a certain degree of elasticity.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. When the gas pressure inside the tank increases, the gas flows outward through the cavity of the valve body, allowing the gas to enter the air ducts on both sides at the same time. As the gas flows, the fan blades rotate, which in turn drives the connecting rod and brush to rotate. The brush continuously cleans the inside of the air duct, preventing solid substances in the gas from adhering to the inner wall of the air duct. The purified gas is discharged after being filtered through the filter layer, making it convenient for staff to collect the filtered gas.

[0012] 2. If the filter layer needs to be replaced, press the fixing block to disengage it from the fixing hole, compress the first spring and remove the mounting plate. After replacement, release the fixing block, and the spring will rebound to lock it into the fixing hole for fixation. This makes it convenient for staff to replace the filter layer regularly. This design can balance the gas pressure inside and outside the tank, recover some gas and keep the inside of the valve body clean, thus improving safety and environmental protection.

[0013] 3. When the gas pressure inside the tank rises above the set value, the gas pushes the baffle to compress the second spring, allowing airflow to enter the air duct through the cavity, driving the fan blades to rotate and the brush to clean the air duct. At the same time, high-pressure gas enters the sealing valve core, causing it to push open the sealing block and move the sealing block outside the sealing valve core, allowing the gas to be discharged smoothly. When the gas pressure inside the tank drops and forms a negative pressure, external air enters through the connecting pipe, pushing the sealing valve core and sealing block down to fit against the valve body to prevent leakage. When the negative pressure reaches the set value, the baffle resets under the action of the second spring, closing the channel and keeping the gas pressure inside the tank stable. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the structural features of this utility model;

[0017] Figure 2 This is a schematic diagram of the mounting plate structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the air duct structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixing block structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the sealing valve core structure of this utility model.

[0021] In the diagram: 100, valve body; 200, cavity; 201, air duct; 202, rotating shaft; 203, fan blade; 204, connecting rod; 205, brush plate; 206, connecting pipe; 207, mounting plate; 208, filter layer; 209, first spring; 210, fixing block; 211, fixing hole; 212, limiting plate; 213, handle; 300, second spring; 301, baffle; 302, third spring; 303, sealing valve core; 304, fourth spring; 305, sealing block; 306, sealing gasket; 307, stabilizing rod; 308, fixing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5A breathing valve with gas recovery function is characterized by comprising a valve body 100, a cavity 200, and air ducts 201. The cavity 200 is located inside the valve body 100. Two sets of air ducts 201 are provided, with each set located on one side of the inner cavity of the valve body 100. A rotating shaft 202 is rotatably connected to the interior of each air duct 201. Fan blades 203 are fixedly connected to the outer walls of each rotating shaft 202. Connecting rods 204 are fixedly connected to the outer walls of each rotating shaft 202. Brushes 205 are fixedly connected to the outer wall of rod 204. A connecting pipe 206 is fixedly connected to the top of valve body 100. A mounting plate 207 is movably connected inside the connecting pipe 206. A filter layer 208 is fixedly connected inside the mounting plate 207. First springs 209 are fixedly connected to both sides of the top interior of the mounting plate 207. A fixing block 210 is fixedly connected to one end of each of the two first springs 209. Fixing holes 211 are opened on both sides of the outer wall of the connecting pipe 206. The fixing blocks on both sides... Both 210 and the fixing holes 211 on both sides match. When the gas pressure inside the tank increases, the gas flows outward through the cavity 200 of the valve body 100, allowing the gas to enter the air ducts 201 on both sides at the same time. As the gas flows, the fan blades 203 rotate, which causes the rotating shaft 202 to drive the connecting rod 204 and the brush 205 to rotate. The brush 205 continuously cleans the inside of the air duct 201 to prevent solid substances in the gas from adhering to the inner wall of the air duct 201. The purified gas is discharged after being filtered by the filter layer 208, which makes it easy for the staff to collect the filtered gas. If the filter layer 208 needs to be replaced, press the fixing block 210 to make it disengage from the fixing hole 211, compress the first spring 209 and take out the mounting plate 207. After replacement, release the fixing block 210, and the spring rebounds to make it snap into the fixing hole 211 for fixation, which makes it easy for the staff to replace the filter layer 208 regularly. This design can balance the gas pressure inside and outside the tank, recover some gas and keep the inside of the valve body 100 clean, improving safety and environmental protection.

[0024] The filter layer 208 is composed of activated carbon, silica gel, and molecular sieve adsorbent. Limiting plates 212 are fixedly connected to both sides of the inner wall of the connecting tube 206. The size of the mounting plate 207 is equal to the distance between the two limiting plates 212, so that the filter layer 208 can be installed more firmly.

[0025] A handle 213 is fixedly connected to the right end of the mounting plate 207. The handle 213 is made of stainless steel, which facilitates the removal of the mounting plate 207.

[0026] A second spring 300 is fixedly connected inside the valve body 100. A baffle 301 is fixedly connected to one end of the second spring 300. A third spring 302 is fixedly connected to the upper part of the inner cavity of the valve body 100. A sealing valve core 303 is fixedly connected to one end of the third spring 302. A fourth spring 304 is fixedly connected inside the sealing valve core 303. A sealing block 305 is fixedly connected to one end of the fourth spring 304. A sealing gasket 306 is fixedly connected to the outer wall of the sealing block 305. When the gas pressure inside the tank rises above the set value, the gas pushes the baffle 301 to compress the second spring 300, causing the airflow to pass through the cavity 20. 0 enters the air duct 201, driving the fan blade 203 to rotate and drive the brush 205 to clean the air duct 201. At the same time, high-pressure gas enters the sealing valve core 303, causing it to push open the sealing block 305, moving the sealing block 305 to the outside of the sealing valve core 303, allowing the gas to be discharged smoothly. When the gas pressure inside the tank decreases and forms a negative pressure, external air enters through the connecting pipe 206, pushing the sealing valve core 303 and the sealing block 305 down to fit against the valve body 100 to prevent leakage. When the negative pressure reaches the set value, the baffle 301 resets and closes the channel under the action of the second spring 300, keeping the gas pressure inside the tank stable.

[0027] Stabilizing rods 307 are fixedly connected to both sides of the bottom of the sealing block 305. One end of the stabilizing rods 307 is located inside the sealing block 305, which makes the sealing block 305 move up and down more stably.

[0028] A retaining ring 308 is screwed onto the outer wall of the valve body 100. A sealing ring is fixedly connected to the top of the retaining ring 308. The sealing ring has a certain degree of elasticity. Rotating the retaining ring 308 causes the sealing ring to fit into the inner cavity of the storage tank, forming a seal, which can effectively prevent air pressure leakage.

[0029] Working principle: When the gas pressure inside the tank increases, the gas flows outward through the cavity 200 of the valve body 100, allowing the gas to simultaneously enter the air ducts 201 on both sides. As the gas flows, the fan blades 203 rotate, causing the rotating shaft 202 to drive the connecting rod 204 and the brush 205 to rotate. The brush 205 continuously cleans the inside of the air duct 201, preventing solid matter in the gas from adhering to the inner wall of the air duct 201. The purified gas is discharged after being filtered by the filter layer 208, making it easy for workers to collect the filtered gas. If the filter layer 208 needs to be replaced, press the fixing block 210 to disengage it from the fixing hole 211, compress the first spring 209, and remove the mounting plate 207. After replacement, release the fixing block 210, and the spring will return, locking it into the fixing hole 211 for fixation. This facilitates regular replacement of the filter layer 208 by workers. This design balances... The internal and external air pressure of the tank can be adjusted to recover some gas and keep the inside of the valve body 100 clean, improving safety and environmental protection. When the internal air pressure rises above the set value, the gas pushes the baffle 301 to compress the second spring 300, allowing the airflow to enter the air duct 201 through the cavity 200, driving the fan blade 203 to rotate and driving the brush 205 to clean the air duct 201. At the same time, high-pressure gas enters the sealing valve core 303, causing it to push open the sealing block 305, moving the sealing block 305 outside the sealing valve core 303, allowing the gas to be discharged smoothly. When the internal air pressure drops and forms a negative pressure, external air enters through the connecting pipe 206, pushing the sealing valve core 303 and the sealing block 305 downward to fit against the valve body 100 to prevent leakage. When the negative pressure reaches the set value, the baffle 301 resets and closes the channel under the action of the second spring 300, keeping the internal air pressure of the tank stable.

Claims

1. A breather valve having a gas recovery function, characterized by: Including valve body (100), cavity (200), air duct (201), the cavity (200) is arranged inside the valve body (100), the air duct (201) is arranged as two groups, both sides air duct (201) are arranged in the two sides of the inner cavity of the valve body (100), the inside of both sides air duct (201) is connected with the shaft (202), the outer wall of both sides shaft (202) is connected with the fan blade (203), the outer wall of both sides shaft (202) is connected with the connecting rod (204), the outer wall of both sides connecting rod (204) is connected with the brush plate (205), the top of the valve body (100) is connected with the connecting pipe (206), the inside of the connecting pipe (206) is connected with the mounting plate (207), the inside of the mounting plate (207) is connected with the filter layer (208), both sides of the first spring (209) are connected with the fixed block (210) in the inside of the top of the mounting plate (207), both sides of the fixed hole (211) are arranged on the outer wall of the connecting pipe (206).

2. The breather valve with a gas recovery function according to claim 1, characterized in that: The filter layer (208) is composed of activated carbon, silica gel, molecular sieve adsorption colloid, both sides of the connecting pipe (206) inner wall are connected with the limit plate (212), the size of the mounting plate (207) is equal to the interval of both sides limit plate (212).

3. The breather valve with a gas recovery function according to claim 1, characterized in that: The right end of the mounting plate (207) is connected with the handle (213), the handle (213) is made of stainless steel.

4. The breather valve with a gas recovery function according to claim 1, characterized in that: The inside of the valve body (100) is connected with the second spring (300), one end of the second spring (300) is connected with the baffle (301), the upper portion of the inner cavity of the valve body (100) is connected with the third spring (302), one end of the third spring (302) is connected with the sealing valve core (303), the inside of the sealing valve core (303) is connected with the fourth spring (304), one end of the fourth spring (304) is connected with the sealing block (305), the outer wall of the sealing block (305) is connected with the sealing pad (306).

5. The breather valve with a gas recovery function according to claim 4, characterized in that: Both sides of the bottom of the sealing block (305) are connected with the stabilizing rod (307), one end of both sides stabilizing rod (307) is located in the inside of the sealing block (305).

6. The breather valve with a gas recovery function according to claim 1, characterized in that: The outer wall of the valve body (100) is screwed with the fixed ring (308), the top of the fixed ring (308) is fixedly connected with the sealing ring, the sealing ring has certain elasticity.

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