Multi-stage adsorption oil gas recovery device

Abstract

The invention relates to the field of organic waste gas treatment, in particular to a multi-stage adsorption oil gas recovery device which comprises an oil gas adsorption tower; a multi-stage filtering structure for adsorbing and filtering oil gas is connected; the oil gas inlet end of the oil gas adsorption tower is connected with an oil gas inlet pipe; the multi-stage filtering structures are used for adjusting different types of filtering sieves to perform multi-stage filtering on the oil gas according to the types of the oil gas; the multi-stage filtering structure is connected with an oil gas recovery treatment device, and the discharge end of the oil gas recovery treatment device is connected with an oil gas discharge pipe; the adjusting air cylinder can separate the butt joint pipe, the treatment pipe and the oil-gas filtering structure, the servo motor drives the worm and gear structure to adjust the angle position of the oil-gas filtering screen, the treatment mode can be flexibly adjusted conveniently according to the specification of oil gas, and the adaptability of the equipment to different oil-gas treatment is enhanced.

Description

Technical Field

[0001] The invention relates to the field of organic waste gas treatment, and in particular to a multi-stage adsorption oil and gas recovery device. Background Art

[0002] In the production, storage, transportation, and loading and unloading of organic chemicals, organic components will volatilize into the atmosphere. After entering the atmosphere, organic components participate in atmospheric chemical reactions, causing haze. Typical application scenarios include: oil loading and unloading at docks, cars, and trains; storage of intermediate products and finished oil products in tank areas during the production process. Typical components include: crude oil, gasoline, diesel, jet fuel, triphenyl and other volatile components. The organic waste gas generated in the above typical use environment has the characteristics of high concentration and large fluctuations. For this type of waste gas with large changes, the current mainstream uses oil and gas recovery processes, such as adsorption + absorption process, condensation + adsorption process, and membrane + adsorption process for recovery and treatment. The above processes have made great contributions to reducing VOCs emissions in past practices. A Chinese patent discloses a multi-stage adsorption oil and gas recovery device (authorization announcement number CN209885536U). The patent technology discloses a multi-stage adsorption oil and gas recovery device. The oil and gas pass through the absorption module, the primary adsorption module, and the secondary adsorption module in sequence to achieve VOCs recovery and standard emission. The absorption module cools the absorbent through a cooler to reduce its volatility. The primary adsorption module and the secondary adsorption module achieve standard emission of tail gas through porous medium adsorption. The multi-stage adsorption module regularly regenerates the adsorption medium through a vacuum analysis module. The technology used in the device can be used to improve the design of existing adsorption and absorption technologies to meet the latest emission standards. This patent technology solves the problem that as the national emission standards are improved, it gradually cannot adapt to the latest emission standards in specific practice, which brings great environmental pressure to end users.

[0003] However, in the prior art, different types of oil and gas contain higher water content in some oil and gas, which easily leads to poor filtering effect of filter screens such as activated carbon. It is necessary to solve the problem of multi-stage filtration by filter screens that can be adjusted and adapted according to the specifications of oil and gas in the prior art.

[0004] Therefore, those skilled in the art provide a multi-stage adsorption oil and gas recovery device to solve the problems raised in the above background technology. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides: A multi-stage adsorption oil and gas recovery device, comprising: An oil and gas adsorption tower; connected with a multi-stage filtering structure for oil and gas adsorption and filtration; The oil and gas inlet end of the oil and gas adsorption tower is connected with an oil and gas inlet pipe; The multi-stage filtering structure is three or more, and is used to adjust different types of filter screens according to the types of oil and gas to filter the oil and gas in multiple stages; The multi-stage filtering structure is connected to an oil and gas recovery and processing device, and the discharge end of the oil and gas recovery and processing device is connected to an oil and gas discharge pipe; The multi-stage filtering structure comprises an assembly shaft frame, and a multi-stage oil and gas processing structure is assembled inside the assembly shaft frame. The multi-stage oil and gas processing structure has three different types of oil and gas filtering structures built in.

[0006] Preferably: the number of the assembly shaft brackets is two, and they are symmetrically assembled on both sides of the assembly shaft bracket; A load-bearing outer frame is integrally fixed to the outer side surface of the assembly shaft frame, and an adjusting cylinder is fixedly assembled on the top of the load-bearing outer frame. A docking plate is fixedly assembled on the output end of the adjusting cylinder, and a docking tube and a processing tube are integrally fixed on the docking plate.

[0007] Preferably: the number of the docking tubes is two in total, and a single processing tube can be used to seal and dock three groups of oil and gas filtering structures; The outside of the butt joint pipe is sealed and connected with a connecting pipe connected to an external clean water pipe; The outside of the treatment pipe 1 is sealed and connected to a treatment pipe 2 which is connected to another multi-stage filtering structure or an oil and gas adsorption tower or an oil and gas recovery and processing device.

[0008] Preferably: the multi-stage oil and gas processing structure comprises an assembly sleeve assembled on the inner side of an assembly sleeve frame, an inner casing is fixedly arranged inside the assembly sleeve, and a noise reduction inner casing is assembled inside the inner casing; An outer shell is installed between the inner shell and the two ends of the noise reduction inner shell; Three oil and gas filtering structures are installed inside the noise reduction inner shell.

[0009] Preferably: an inner shaft housing is installed between the two ends of the noise reduction inner housing and the oil and gas filtering structure; Furthermore, the oil and gas filtering structure is rotatably mounted on the inner side of the inner shaft housing.

[0010] Preferably: a spur gear ring is fixedly arranged at the middle of the assembly shaft, and the spur gear ring is meshed with a spur gear, and a transmission rod rotatably arranged on the inner wall of the assembly shaft frame is fixedly arranged at the center of the spur gear; One end of the transmission rod rotates and penetrates the outside of the assembly shaft frame, and is fixedly assembled with a worm wheel, the worm wheel is meshed with a worm, and one end of the worm is connected to a servo motor.

[0011] The servo motor is fixedly arranged on the outer wall of the assembly shaft frame and is used for actively driving the worm to rotate.

[0012] Preferably: a fixing rod is fixedly provided on the inner wall of the inner shaft housing, a bidirectional motor is fixedly installed on one end of the fixing rod away from the inner shaft housing, an active rod is assembled on the output end of the bidirectional motor, and a gear 1 is fixedly provided on the outer wall of the active rod.

[0013] Preferably, the oil and gas filtering structure comprises an oil and gas filtering cartridge rotatably arranged on the inner side of the inner shaft housing, and oil and gas filtering screens are installed at both ends of the oil and gas filtering cartridge.

[0014] Preferably: both ends of the oil and gas filter screen are provided with stirring blades on the outside for friction cleaning during water flushing cleaning.

[0015] Preferably: an inner ring shaft rotatably mounted inside the oil and gas filter screen is fixedly provided on the outer side of the stirring blade, a gear ring body is fixedly provided on the outer side of the inner ring shaft, and the gear ring body is meshed with a gear 2 rotating on the inner wall of the oil and gas filter cartridge.

[0016] The gear 2 is in meshing relationship with the gear 1.

[0017] Technical effects and advantages of the present invention: The present invention, through multi-stage adsorption filtration and multi-stage filtration structure, can carry out targeted treatment according to the type of oil and gas, effectively recover oil and gas, improve recovery efficiency, ensure that different types of oil and gas can be effectively processed, and reduce resource waste and environmental pollution.

[0018] In the present invention, the adjusting cylinder can separate the docking tube, the processing tube and the oil and gas filtering structure, and the servo motor drives the worm gear structure to adjust the angle position of the oil and gas filtering screen, so as to facilitate the flexible adjustment of the processing mode according to the oil and gas specifications and enhance the adaptability of the equipment to different oil and gas processing.

[0019] The present invention utilizes a clean water pipe to provide a water source for the oil and gas filter screen, and cooperates with a bidirectional motor to drive the stirring blade to rotate, so as to efficiently rinse both sides of the screen, improve the efficiency of cleaning adsorbents, ensure the performance of the filter screen, extend the service life of the equipment, and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a multi-stage adsorption oil and gas recovery device provided by the present application; Figure 2 It is a schematic diagram of the structure of a multi-stage adsorption oil and gas recovery device provided by the present application from a top view; Figure 3 It is a schematic diagram of the structure of a side surface of a multi-stage adsorption oil and gas recovery device provided by the present application; Figure 4 It is a structural schematic diagram of a multi-stage filtration structure in a multi-stage adsorption oil and gas recovery device provided by the present application; Figure 5It is a structural schematic diagram of a multi-stage oil and gas processing structure in a multi-stage adsorption oil and gas recovery device provided by the present application; Figure 6 It is a structural schematic diagram of an assembly shaft frame in a multi-stage adsorption oil and gas recovery device provided by the present application; Figure 7 It is a structural schematic diagram of an assembly shaft in a multi-stage adsorption oil and gas recovery device provided by the present application; Figure 8 It is a structural schematic diagram of an outer shell in a multi-stage adsorption oil and gas recovery device provided by the present application; Fig. 9 It is a structural schematic diagram of an oil and gas filtration node in a multi-stage adsorption oil and gas recovery device provided by the present application; Fig.10 It is a structural schematic diagram of a bidirectional motor in a multi-stage adsorption oil and gas recovery device provided by the present application; Fig.11 It is a structural schematic diagram of an oil and gas filter cartridge in a multi-stage adsorption oil and gas recovery device provided in the present application.

[0021] In the figure: 1. Oil and gas adsorption tower; 2. Multi-stage filtering structure; 201. Assembly shaft frame; 202. Load-bearing outer frame; 203. Adjustment cylinder; 204. Docking plate; 205. Docking pipe; 206. Connecting pipe; 207. Processing pipe 1; 208. Processing pipe 2; 21. Multi-stage oil and gas processing structure; 2101. Assembly shaft; 2102. Spur gear ring; 2103. Spur gear; 2104. Transmission rod; 2105. Worm gear; 2106. Worm; 2107. Servo motor; 2108. Inner housing; 2109. Outer housing; 2110. Noise reduction inner housing; 2111. Inner shaft housing; 2112. Gear 1; 2113. Active rod; 2114. Bidirectional motor; 2115. Fixed rod; 22. Oil and gas filtering structure; 2201. Oil and gas filtering cartridge; 2202. Oil and gas filtering screen; 2203. Inner ring shaft; 2204. Gear ring body; 2205. Stirring blade; 2206. Gear 2; 3. Oil and gas recovery and processing device; 4. Oil and gas inlet pipe; 5. Oil and gas exhaust pipe. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The examples of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

[0023] For examples, see Figures 1 to 11 In this embodiment, a multi-stage adsorption oil and gas recovery device is provided, comprising: an oil and gas adsorption tower 1; a multi-stage filtering structure 2 for oil and gas adsorption and filtration is connected; the oil and gas inlet end of the oil and gas adsorption tower 1 is connected to an oil and gas inlet pipe 4; the multi-stage filtering structure 2 is three or more, and is used to adjust different types of filter screens according to the type of oil and gas to filter the oil and gas in multiple stages; The multi-stage filtering structure 2 is connected to an oil and gas recovery and processing device 3, and the discharge end of the oil and gas recovery and processing device 3 is connected to an oil and gas discharge pipe 5; the multi-stage filtering structure 2 includes an assembly shaft frame 201, and a multi-stage oil and gas processing structure 21 is assembled inside the assembly shaft frame 201, and the multi-stage oil and gas processing structure 21 has three different types of oil and gas filtering structures 22 built in.

[0024] There are two assembly shaft frames 201 in total, and they are symmetrically assembled on both sides of the assembly shaft frame 201; a load-bearing outer frame 202 is integrally fixed to the outer side surface of the assembly shaft frame 201, and an adjusting cylinder 203 is fixedly assembled on the top of the load-bearing outer frame 202, and a docking plate 204 is fixedly assembled on the output end of the adjusting cylinder 203, and a docking tube 205 and a processing tube 207 are integrally fixed on the docking plate 204.

[0025] There are two butt joints 205, and they can seal and dock three groups of oil and gas filtering structures 22 in combination with a single treatment tube 1 207; the butt joint 205 is sealed and connected to a connecting tube 206 connected to an external clean water pipe; the treatment tube 1 207 is sealed and connected to a treatment tube 2 208 connected to another multi-stage filtering structure 2 or an oil and gas adsorption tower 1 or an oil and gas recovery and processing device 3. The multi-stage oil and gas processing structure 21 includes an assembly sleeve 2101 assembled on the inner side of an assembly shaft frame 201, an inner housing 2108 is fixedly arranged inside the assembly sleeve 2101, and a noise reduction inner housing 2110 is assembled inside the inner housing 2108; an outer housing 2109 is assembled between both ends of the inner housing 2108 and the noise reduction inner housing 2110; and three oil and gas filtering structures 22 are assembled inside the noise reduction inner housing 2110.

[0026] An inner shaft housing 2111 is installed between the two ends of the noise reduction inner housing 2110 and the oil and gas filtering structure 22; and the oil and gas filtering structure 22 is rotatably installed on the inner side of the inner shaft housing 2111. A spur gear ring 2102 is fixedly installed in the middle of the assembly shaft 2101, and the spur gear ring 2102 is meshed with a spur gear 2103, and a transmission rod 2104 rotatably installed on the inner wall of the assembly shaft frame 201 is fixedly installed at the center of the spur gear 2103; one end of the transmission rod 2104 rotates and penetrates the outer side of the assembly shaft frame 201, and is fixedly installed with a worm wheel 2105, and the worm wheel 2105 is meshed with a worm 2106, and one end of the worm 2106 is connected to a servo motor 2107. The servo motor 2107 is fixedly installed on the outer wall of the assembly shaft frame 201, and is used to actively drive the worm 2106 to rotate.

[0027] The inner wall of the inner shaft housing 2111 is fixed with a fixed rod 2115, and a bidirectional motor 2114 is fixedly installed at one end of the fixed rod 2115 away from the inner shaft housing 2111. The output end of the bidirectional motor 2114 is equipped with an active rod 2113, and a gear 1 2112 is fixedly arranged on the outer wall of the active rod 2113. The oil and gas filtering structure 22 includes an oil and gas filtering cartridge 2201 rotatably arranged on the inner side of the inner shaft housing 2111, and oil and gas filtering screens 2202 are installed at both ends of the oil and gas filtering cartridge 2201.

[0028] The outer sides of both ends of the oil and gas filter screen 2202 are provided with stirring blades 2205 for friction cleaning during water flushing. The outer side of the stirring blade 2205 is fixed with an inner ring shaft 2203 that is rotatably assembled inside the oil and gas filter screen 2202, and the outer side of the inner ring shaft 2203 is fixed with a gear ring body 2204, and the gear ring body 2204 is meshed with a gear 2 2206 that rotates on the inner wall of the oil and gas filter cartridge 2201. The gear 2 2206 is in meshing relationship with the gear 1 2112.

[0029] According to the above embodiments, the working principle of the present invention is: The oil and gas that need multi-stage adsorption filtration for recovery are discharged into multiple multi-stage filtration structures 2 in sequence through the oil and gas inlet pipe 4 connected to the oil and gas adsorption tower 1, and then subjected to targeted multi-stage adsorption treatment according to the type of oil and gas; The oil and gas are discharged into a single oil and gas filtering structure 22 corresponding to the multi-stage oil and gas processing structure 21 through the second processing pipe 208, and the oil and gas are subjected to adsorption and filtering processing; When adjusting the oil and gas specifications, the adjustment cylinder 203 separates the butt-joint pipe 205 and the processing pipe 1 207 from the oil and gas filtering structure 22 in the multi-stage oil and gas processing structure 21; After starting the servo motor 2107, the servo motor 2107 will drive the worm 2106 to engage the worm wheel 2105 to rotate. The rotating worm wheel 2105 can drive the assembly shaft 2101 to rotate along the inner side of the assembly shaft frame 201, so as to adjust the angle position of the oil and gas filter screen 2202 of activated carbon, silica gel or activated alumina; It is conducive to the targeted use of filter screens for multi-stage adsorption treatment of oil and gas; When cleaning the oil and gas filter screen 2202, water can be provided through the connected clean water pipe to fill the oil and gas filter screens 2202 corresponding to the two docking pipes 205. The oil and gas filter screen 2202 is filled with water, and the two-way motor 2114 is started. After the two-way motor 2114 is started, it drives the active rod 2113 to rotate. The rotating active rod 2113 drives gear one 2112 to engage gear two 2206, so that gear two 2206 drives the stirring blades 2205 on the inner side of the inner ring shaft 2203 to continuously rotate on both sides of the oil and gas filter screen 2202, which is beneficial to improve the cleaning efficiency when flushing the adsorbed matter.

[0030] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A multi-stage adsorption oil and gas recovery device, characterized in that: include: An oil and gas adsorption tower (1) is connected to a multi-stage filtering structure (2) for oil and gas adsorption and filtration; The oil and gas inlet end of the oil and gas adsorption tower (1) is connected to an oil and gas inlet pipe (4); The multi-stage filtering structure (2) is three or more, and is used to adjust different types of filter screens according to the types of oil and gas to filter the oil and gas in multiple stages; The multi-stage filtering structure (2) is connected to an oil and gas recovery and processing device (3), and the discharge end of the oil and gas recovery and processing device (3) is connected to an oil and gas discharge pipe (5); The multi-stage filtering structure (2) comprises an assembly shaft frame (201), and a multi-stage oil and gas processing structure (21) is assembled inside the assembly shaft frame (201), and the multi-stage oil and gas processing structure (21) has three different types of oil and gas filtering structures (22) built in.

2. A multi-stage adsorption oil and gas recovery device according to claim 1, characterized in that: The number of the assembly shaft frames (201) is two in total, and they are symmetrically assembled on both sides of the assembly shaft frame (201); A load-bearing outer frame (202) is integrally fixed to the outer side surface of the assembly shaft frame (201), and an adjusting cylinder (203) is fixedly mounted on the top of the load-bearing outer frame (202). A docking plate (204) is fixedly mounted on the output end of the adjusting cylinder (203), and a docking tube (205) and a processing tube 1 (207) are integrally fixed to the docking plate (204).

3. A multi-stage adsorption oil and gas recovery device according to claim 2, characterized in that: The number of the butt joint pipes (205) is two in total, and they can be used in conjunction with a single processing pipe 1 (207) to seal and butt three sets of oil and gas filtering structures (22); The butt joint pipe (205) is externally sealed and connected to a connecting pipe (206) connected to an external clean water pipe; The outside of the treatment pipe 1 (207) is sealedly connected to a treatment pipe 2 (208) connected to another multi-stage filtering structure (2) or an oil and gas adsorption tower (1) or an oil and gas recovery and processing device (3).

4. The multi-stage adsorption oil and gas recovery device according to claim 1, characterized in that: The multi-stage oil and gas processing structure (21) comprises an assembly sleeve (2101) assembled on the inner side of an assembly sleeve frame (201), an inner casing (2108) being fixedly arranged inside the assembly sleeve (2101), and a noise reduction inner casing (2110) being assembled on the inner side of the inner casing (2108); An outer shell (2109) is installed between both ends of the inner shell (2108) and the noise reduction inner shell (2110); Three oil and gas filtering structures (22) are installed inside the noise reduction inner shell (2110).

5. A multi-stage adsorption oil and gas recovery device according to claim 4, characterized in that: An inner shaft housing (2111) is installed between the two ends of the noise reduction inner housing (2110) and the oil and gas filtering structure (22); The oil and gas filtering structure (22) is rotatably mounted on the inner side of the inner shaft housing (2111); A spur gear ring (2102) is fixedly arranged in the middle of the assembly shaft (2101), and a spur gear (2103) is meshed with the spur gear ring (2102), and a transmission rod (2104) rotatably arranged on the inner wall of the assembly shaft frame (201) is fixedly arranged at the center of the spur gear (2103); One end of the transmission rod (2104) rotates and penetrates the outside of the assembly shaft frame (201), and is fixedly mounted with a worm wheel (2105), the worm wheel (2105) is meshed with a worm (2106), and one end of the worm (2106) is connected to a servo motor (2107).

6. A multi-stage adsorption oil and gas recovery device according to claim 5, characterized in that: A fixing rod (2115) is fixedly provided on the inner wall of the inner shaft housing (2111); a bidirectional motor (2114) is fixedly installed on one end of the fixing rod (2115) away from the inner shaft housing (2111); an active rod (2113) is mounted on the output end of the bidirectional motor (2114); and a gear 1 (2112) is fixedly provided on the outer wall of the active rod (2113).

7. The multi-stage adsorption oil and gas recovery device according to claim 6, characterized in that: The oil and gas filtering structure (22) comprises an oil and gas filtering cartridge (2201) rotatably arranged on the inner side of the inner shaft housing (2111), and oil and gas filtering screens (2202) are installed at both ends of the oil and gas filtering cartridge (2201).

8. The multi-stage adsorption oil and gas recovery device according to claim 7, characterized in that: Both ends of the oil and gas filter screen (2202) are provided with stirring blades (2205) on the outside for friction cleaning during water flushing.

9. The multi-stage adsorption oil and gas recovery device according to claim 8, characterized in that: An inner ring shaft (2203) is fixedly provided on the outer side of the stirring blade (2205) and is rotatably mounted inside the oil and gas filtering screen (2202).

10. The multi-stage adsorption oil and gas recovery device according to claim 9, characterized in that: A gear ring body (2204) is fixedly provided on the outside of the inner ring shaft (2203), and the gear ring body (2204) is meshed with a second gear (2206) that rotates on the inner wall of the oil and gas filter cartridge (2201).

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