Intelligent methane membrane purification skid-mounted equipment

Abstract

The invention discloses intelligent biogas membrane purification skid-mounted equipment which comprises a biogas purification skid body, a conveying structure arranged on the biogas purification skid body, a positioning structure connected to the conveying structure and a fixing structure arranged on the positioning structure. According to the scheme, through the adaptive design of the butt joint disc, the matching of the positioning column and the guide plate and the action of the rotating rod and the pressing plate, rapid and accurate butt joint of pipelines in the biogas purification skid-mounted equipment is achieved, the operation time of pipeline assembly is greatly shortened, the stability and the sealing effect of pipeline connection are enhanced, and the service life of the pipelines is prolonged. The problems of dislocation and leakage easily occurring in traditional pipeline connection are effectively avoided, meanwhile, the attaching sealing performance of the pipeline and the mounting sleeve is further improved through the arrangement of the rubber pad, and the safety of the biogas conveying process is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of biogas membrane purification skid-mounted equipment technology, specifically an intelligent biogas membrane purification skid-mounted equipment. Background Technology

[0002] The biogas membrane purification skid-mounted equipment is an integrated and modular biogas treatment device, widely used in small and medium-sized biogas production scenarios such as farms and waste treatment plants. Its core technology utilizes membrane separation technology, taking advantage of the selective permeation characteristics of special separation membranes for different gases, to separate methane from impurities such as carbon dioxide and hydrogen sulfide in biogas under pressure difference, ultimately producing high-purity biomethane. It features small footprint, convenient installation, and strong adaptability, making it a key piece of equipment for promoting biogas resource utilization and contributing to low-carbon energy conservation.

[0003] However, existing biogas membrane purification skid-mounted equipment relies heavily on traditional bolt fixing when connecting pipelines. This is not only cumbersome and time-consuming, but also lacks a precise positioning structure. Misalignment is prone to occur during the docking process, resulting in poor sealing performance and a high risk of biogas leakage. At the same time, the traditional connection method has low assembly efficiency and significantly increases the cost of manual operation and maintenance. Meanwhile, the cooler that is matched with the membrane purification unit is a key device to ensure the membrane separation efficiency. Its corresponding protective net is mostly installed by traditional bolt fixing. Not only does the disassembly and assembly process require special tools such as wrenches, but the operation steps are also cumbersome, time-consuming and labor-intensive, which greatly reduces the maintenance and cleaning efficiency of the protective net and brings inconvenience to daily equipment maintenance. Moreover, this fixing method lacks an effective positioning structure, and the protective net is prone to positional displacement during installation. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent biogas membrane purification skid-mounted device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An intelligent biogas membrane purification skid-mounted equipment includes a biogas purification skid body, a conveying structure disposed on the biogas purification skid body, a positioning structure connected to the conveying structure, and a fixing structure disposed on the positioning structure. The conveying structure includes a first pipe and a second pipe connected to the first pipe. The biogas purification skid body is provided with multiple first pipes and second pipes. Adjacent ends of the first pipe and the second pipe are fixedly connected to docking plates. Two docking plates abut against each other. A positioning structure is provided between the two docking plates. The positioning structure includes mounting sleeves. Two mounting sleeves are provided on the first pipe. The two mounting sleeves abut against each other. The top of the mounting sleeve abuts against one of the docking plates. Two positioning posts are fixedly connected to the top surface of the mounting sleeve. Both docking plates are engaged with the positioning posts. The fixing structure includes a rotating shaft and a rotating rod fixedly connected to the rotating shaft. Two rotating shafts are rotatably connected between the two mounting sleeves. A pressure plate is slidably connected to the top of the rotating rod. The pressure plate is slidably connected to the second pipe. The bottom surface of the pressure plate abuts against the other docking plate.

[0006] To enhance the compatibility and assembly efficiency of the docking plates, as a preferred embodiment of the present invention, the cross-section of the docking plates is convex, and four holes are pre-drilled on both docking plates.

[0007] To improve the fit, sealing, and fixation of the mounting sleeve and the pipe, as a preferred embodiment of the present invention: two adjacent mounting sleeves are fixed together by two bolts, and a rubber pad is fixedly connected to the inner side of the mounting sleeve, with the inner side of the rubber pad adhering to the first pipe.

[0008] To assist in the alignment and positioning of the docking discs and improve the convenience of pipe docking, as a preferred embodiment of the present invention: a guide plate is fixedly connected to one of the mounting sleeves, and the two adjacent docking discs are both attached to the guide plate.

[0009] To enhance the sealing effect between the docking discs and prevent biogas leakage, as a preferred embodiment of the present invention: a sealing ring is engaged on one of the docking discs, the sealing ring is engaged with four positioning posts, and the other docking disc and the sealing ring abut against each other.

[0010] In order to enable the rotating rod to have automatic reset capability and improve the ease of operation of the fixed structure, as a preferred embodiment of the present invention: torsion springs are fixedly connected between the ends of the two rotating shafts and the mounting sleeves, and the two rotating shafts are symmetrically arranged.

[0011] To enhance the pressing effect of the pressure plate on the mating disc and prevent the mating disc from detaching from its position, as a preferred embodiment of the present invention: a first knob is rotatably connected to the top of the rotating rod, the pressure plate is threadedly connected to the first knob, and an anti-detachment column is fixedly connected to the bottom surface of the pressure plate, the anti-detachment column engaging with the adjacent mating disc.

[0012] To improve the heat dissipation efficiency of the cooler and facilitate subsequent maintenance of the heat dissipation components, as a preferred embodiment of the present invention: a cooler is installed on the biogas purification skid body, the cooler is provided with a heat dissipation structure, the heat dissipation structure includes a mounting base and a mounting plate fixedly connected to the mounting base, the mounting base is fixedly connected to the cooler, a motor is fixedly connected to the mounting plate, a fan blade is fixedly connected to the output shaft of the motor, and a quick-release structure is provided on the mounting base.

[0013] To achieve rapid assembly and disassembly of the protective net while ensuring its stability, a preferred embodiment of the present invention is as follows: the quick-release structure includes an mounting block and a stop bar slidably connected within the mounting block. Mounting blocks are fixedly connected to both sides of the mounting base. A tension spring is fixedly connected between the stop bar and the inner wall of the mounting block. A protective net is engaged at the center of the mounting base. A mating sleeve is fixedly connected to the protective net near the mounting block. A slot is provided within the mating sleeve, and the stop bar engages with the slot. A second knob is threadedly connected to the center of the protective net, and the bottom of the second knob abuts against a motor.

[0014] To improve the ease of disassembly and assembly and the sealing fit of the protective net, and to assist in the positioning and installation of the protective net, as a preferred embodiment of the present invention: a pressure rod is slidably connected to the top of the mounting block, a rubber ring is fixedly connected to the mounting base near the edge of the protective net, the protective net abuts against the rubber ring, two positioning grooves are opened on the mounting base, and two positioning blocks are fixedly connected to the protective net, with the two positioning blocks engaging with each other in the adjacent positioning grooves.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1) Through the adaptation design of the connecting plate in the conveying structure, the cooperation of the positioning column and guide plate in the positioning structure, and the role of the rotating rod and pressure plate in the fixing structure, the rapid and accurate connection of the pipeline in the biogas purification skid-mounted equipment is realized, which greatly shortens the operation time of pipeline assembly. It also strengthens the stability and sealing effect of the pipeline connection, effectively avoiding the misalignment and leakage problems that are easy to occur in traditional pipeline connections. At the same time, the setting of rubber gasket further improves the fit and sealing of the pipeline and the installation sleeve, ensuring the safety of the biogas transportation process.

[0016] 2) The coordination between the motor and fan blades in the heat dissipation structure improves the heat dissipation efficiency of the cooler, ensuring that the membrane purification module is always at a suitable operating temperature, thus guaranteeing the efficiency of biogas purification and the service life of the membrane module. At the same time, the linkage design of the stop bar, tension spring and docking sleeve in the quick-release structure enables the quick disassembly and assembly of the protective net. With the positioning function of the positioning block and positioning groove, the maintenance and replacement process of the protective net is simplified, and the stability of the protective net after installation is guaranteed. The rubber ring also enhances the sealing fit between the protective net and the mounting base, further improving the operational stability of the heat dissipation structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A. Figure 3 This is a schematic diagram of the connection structure between the pipe and the docking plate of the present invention; Figure 4 This is a schematic diagram of the connection structure between the pipe and the rubber pad of the present invention; Figure 5 This is a schematic diagram of the connection structure between the mounting sleeve and the bolt of the present invention; Figure 6 This is a schematic diagram of the connection structure between the rotating rod and the pressure plate of the present invention; Figure 7 This is a schematic diagram of the connection structure between the mounting plate and the motor of the present invention; Figure 8 for Figure 7 The diagram shown is an enlarged view of the structure of section B. Figure 9 for Figure 7 The diagram shows an enlarged view of section C. Figure 10 This is a schematic diagram of the connection structure between the mounting base and the mounting sleeve of the present invention.

[0018] In the diagram: 1. Biogas purification skid body; 2. Conveying structure; 201. First pipeline; 202. Second pipeline; 203. Connecting plate; 3. Positioning structure; 301. Mounting sleeve; 302. Bolt; 303. Rubber pad; 304. Guide plate; 305. Positioning post; 306. Sealing ring; 4. Fixing structure; 401. Rotating shaft; 402. Torsion spring; 403. Rotating rod; 404. Pressure plate; 405. First knob ; 406, Anti-detachment column; 5, Cooler; 6, Heat dissipation structure; 601, Mounting base; 602, Mounting plate; 603, Motor; 604, Fan blade; 7, Quick release structure; 701, Mounting block; 702, Stop bar; 703, Tension spring; 704, Protective net; 705, Connecting sleeve; 706, Slot; 707, Pressure rod; 708, Rubber ring; 709, Second knob; 710, Positioning groove; 711, Positioning block. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-10 The present invention provides a technical solution: an intelligent biogas membrane purification skid-mounted equipment, including a biogas purification skid body 1, a conveying structure 2 disposed on the biogas purification skid body 1, a positioning structure 3 connected to the conveying structure 2, and a fixing structure 4 disposed on the positioning structure 3; the conveying structure 2 includes a first pipe 201 and a second pipe 202 connected to the first pipe 201, the biogas purification skid body 1 is provided with a plurality of first pipes 201 and second pipes 202, and the adjacent ends of the first pipes 201 and the second pipes 202 are fixedly connected with docking plates 203, and the two docking plates 203 abut against each other.

[0021] In practical use, the "convex" shaped docking plate 203 allows the first pipe 201 and the second pipe 202 to fit together quickly and avoid misalignment. The four pre-drilled holes provide space for auxiliary fixing.

[0022] A positioning structure 3 is provided between the two docking plates 203. The positioning structure 3 includes a mounting sleeve 301. Two mounting sleeves 301 are provided on the first pipe 201. The two mounting sleeves 301 abut against each other. The two adjacent mounting sleeves 301 are fixed together by two bolts 302. A rubber pad 303 is fixedly connected to the inner side of the mounting sleeve 301. The inner side of the rubber pad 303 is attached to the first pipe 201. The top of the mounting sleeve 301 abuts against one of the docking plates 203. Two positioning posts 305 are fixedly connected to the top surface of the mounting sleeve 301. Both docking plates 203 are engaged with the positioning posts 305.

[0023] In practical use, two mounting sleeves 301 are fixed by bolts 302, and the rubber pads 303 on the inside fit tightly against the pipe, which not only improves the sealing but also buffers the risk of vibration and loosening. The positioning post 305 is inserted into the holes on the two docking plates 203 to effectively prevent biogas leakage.

[0024] The fixed structure 4 includes a rotating shaft 401 and a rotating rod 403 fixedly connected to the rotating shaft 401. Two rotating shafts 401 are rotatably connected between two mounting sleeves 301. A pressure plate 404 is slidably connected to the top of the rotating rod 403. The pressure plate 404 is slidably connected to the second pipe 202. The bottom surface of the pressure plate 404 abuts against another docking plate 203.

[0025] In practical use, by rotating the rotating rods 403 on the two rotating shafts 401 to both sides, and after the two docking plates 203 are in place, the rotating rods 403 are released. At this time, the two rotating rods 403 simultaneously drive the two pressure plates 404 to reset and fit against the second pipe 202 until the pressure plates 404 press the docking plates 203 on the second pipe 202, ensuring stable biogas delivery. At this time, the first pipe 201 and the second pipe 202 are quickly connected, avoiding repeated tightening of screws for fixing and improving the connection efficiency. Finally, the same operation is repeated to complete the connection of other first pipes 201 and second pipes 202 until all pipes form a complete loop.

[0026] One of the mounting sleeves 301 is fixedly connected to a guide plate 304, and the two adjacent mating discs 203 are both attached to the guide plate 304.

[0027] In practical use, the guide plate 304 on the installation sleeve 301 further assists in the precise positioning of the docking plate 203.

[0028] A sealing ring 306 is engaged on one mating plate 203, and the sealing ring 306 is engaged with four positioning pins 305. The other mating plate 203 and the sealing ring 306 are in contact with each other.

[0029] In practical use, the sealing ring 306 is compacted by the two mating discs 203, effectively preventing biogas leakage.

[0030] The ends of the two rotating shafts 401 are fixedly connected to the mounting sleeves 301 with torsion springs 402. The two rotating shafts 401 are symmetrically arranged. The top of the rotating rod 403 is rotatably connected to the first knob 405. The pressure plate 404 is threadedly connected to the first knob 405. The bottom surface of the pressure plate 404 is fixedly connected to the anti-detachment column 406. The anti-detachment column 406 is engaged with the adjacent docking plate 203.

[0031] In practical use, the torsion spring 402 assists the rotating rod 403 in resetting. The first knob 405 at the top of the two rotating rods 403 is rotated respectively. The first knob 405 drives the pressure plate 404 to slide down along the outer wall of the second pipe 202. At the same time, the anti-detachment column 406 after sliding is inserted into the preset hole on the docking plate 203 to strengthen the fixation and prevent detachment.

[0032] A cooler 5 is installed on the biogas purification skid body 1. The cooler 5 is provided with a heat dissipation structure 6. The heat dissipation structure 6 includes a mounting base 601 and a mounting plate 602 fixedly connected to the mounting base 601. The mounting base 601 is fixedly connected to the cooler 5. A motor 603 is fixedly connected to the mounting plate 602. A fan blade 604 is fixedly connected to the output shaft of the motor 603. A quick-release structure 7 is provided on the mounting base 601.

[0033] In practical use, the mounting base 601 is fixedly connected to the cooler 5. The mounting base 601 provides a stable support for the entire heat dissipation assembly, ensuring that the subsequent components do not shift during operation. The mounting plate 602 on the mounting base 601 is used to support the motor 603. Its rigid connection can disperse the vibration of the motor 603 during operation and prevent the motor 603 from becoming loose and affecting the heat dissipation effect. After the motor 603 is started, the output shaft of the motor 603 drives the fan blade 604 to rotate at high speed, quickly dissipating the heat generated by the cooler 5 during operation. This ensures that the membrane module is always at a suitable working temperature of 35℃-55℃, indirectly improving the biogas purification efficiency and ensuring the membrane separation efficiency and membrane module life.

[0034] The quick-release structure 7 includes a mounting block 701 and a stop bar 702 slidably connected within the mounting block 701. Mounting blocks 701 are fixedly connected to both sides of the mounting base 601. A tension spring 703 is fixedly connected between the stop bar 702 and the inner wall of the mounting block 701. A protective net 704 is engaged at the center of the mounting base 601. A mating sleeve 705 is fixedly connected to the protective net 704 near the mounting block 701. A slot 706 is provided inside the mating sleeve 705. The stop bar 702 is engaged in the slot 706. A second knob 709 is threadedly connected to the center of the protective net 704. The bottom of the second knob 709 abuts against the motor 603.

[0035] In practical use, pressing the pressure rod 707 on the mounting block 701 pushes the stop rod 702 to stretch the tension spring 703 and disengage it from the slot 706 of the docking sleeve 705, allowing the protective net 704 to be quickly removed. The operation is simple and the disassembly and assembly are efficient. After the protective net 704 is installed in place, the stop rod 702 is inserted into the slot 706 of the docking sleeve 70. Then, the second knob 709 is rotated so that its bottom contacts the motor 603. As the protective net 704 moves upward, the stop rod 702 is pressed against the inner wall of the slot 706, which not only improves the firmness of the installation of the protective net 704 but also buffers vibration. Finally, the purified high-purity methane is stored in the storage tank, and the gas that does not meet the standards is reprocessed through the return pipeline. The PLC control system monitors various parameters in real time to ensure the automated and stable operation of the equipment.

[0036] A pressure rod 707 is slidably connected to the top of the mounting block 701. A rubber ring 708 is fixedly connected to the mounting base 601 near the edge of the protective net 704. The protective net 704 abuts against the rubber ring 708. Two positioning grooves 710 are opened on the mounting base 601. Two positioning blocks 711 are fixedly connected to the protective net 704. The two positioning blocks 711 are respectively engaged with the adjacent positioning grooves 710.

[0037] In practical use, the rubber ring 708 improves the sealing performance, and during installation, the positioning block 711 is inserted into the positioning groove 710 to assist in alignment, while also buffering vibration.

[0038] Working principle: First, in small and medium-sized biogas production scenarios such as farms and garbage treatment stations, after the biogas purification skid body 1 is deployed at the biogas output end, the equipment pretreatment unit is started to desulfurize, dehydrate and remove dust from the raw biogas, removing H2S, water vapor and particulate matter from the biogas, avoiding impurities from contaminating the subsequent membrane components, and ensuring separation efficiency and equipment life. After pretreatment, the clean biogas enters the delivery pipeline. At this point, multiple first pipelines 201 and second pipelines 202 need to be connected sequentially. The U-shaped docking plate 203 allows for quick and easy fitting, preventing misalignment. Four pre-drilled holes provide space for auxiliary fixing. Two mounting sleeves 301 fitted onto the first pipeline 201 are fixed with bolts 302. The inner rubber gasket 303 fits tightly against the pipeline, improving sealing and buffering against vibration and loosening. The guide plate 304 on the mounting sleeve 301 further assists in precise positioning of the docking plate 203. The positioning post 305 engages with the holes on the two docking plates 203, and the sealing ring 306 is pressed firmly by the two docking plates 203, effectively preventing biogas leakage. When connecting the first pipeline 201 and the second pipeline 202, simply rotate the rotating rods 403 on the two rotating shafts 401 to both sides until the two docking plates 202 are properly aligned. After the 03 connection is in place, release the rotating rod 403. The torsion spring 402 assists the rotating rod 403 in resetting. At this time, the two rotating rods 403 simultaneously drive the two pressure plates 404 to reset and fit against the second pipe 202. Then, rotate the first knob 405 at the top of the two rotating rods 403 respectively. The first knob 405 drives the pressure plate 404 to slide down along the outer wall of the second pipe 202 until the pressure plate 404 presses against the docking plate 203 on the second pipe 202. At the same time, the sliding anti-detachment column 406 is inserted into the preset hole on the docking plate 203 to strengthen the fixation and prevent detachment, ensuring stable biogas delivery. At this time, the quick connection between the first pipe 201 and the second pipe 202 is achieved, avoiding repeated tightening of screws for fixation and improving the connection efficiency. Finally, repeat the same operation to complete the connection of other first pipes 201 and second pipes 202 until all pipes form a complete loop. After connection, the compressor starts and pressurizes the biogas to 0.5MPa to 1.6MPa, providing pressure difference driving force for membrane separation. The pressurized biogas enters the membrane purification module. Utilizing the selective permeation characteristics of special separation membranes such as polyimide, polar "fast gases" such as CO2 and H2S quickly dissolve and diffuse through the membrane wall, while non-polar "slow gases" such as CH4 are intercepted and enriched. A single-stage separation can obtain methane with a purity of 80% to 90%, and a multi-stage process can improve it to over 95%. During membrane separation, cooler 5 works continuously. When cooler 5 is working, it is first fixedly connected to the mounting base 601. The mounting base 601 provides a stable support for the entire heat dissipation assembly, ensuring that the subsequent components do not shift during operation. The mounting plate 602 on the mounting base 601 is used to support the motor 603. Its rigid connection can disperse the vibration of the motor 603 during operation and prevent the motor 603 from becoming loose and affecting the heat dissipation effect. After the motor 603 is started, the output shaft of the motor 603 drives the fan blade 604 to rotate at high speed, quickly dissipating the heat generated when cooler 5 is working, ensuring that the membrane module is always at a suitable working temperature of 35℃-55℃, indirectly improving biogas purification efficiency, and ensuring membrane separation efficiency and membrane module life. To maintain the protective net 704, press the pressure rod 707 on the mounting block 701 to push the stop rod 702 to stretch the tension spring 703 and disengage it from the slot 706 of the docking sleeve 705, allowing the protective net 704 to be quickly removed. The operation is simple and the disassembly and assembly are efficient. During installation, the positioning block 711 is inserted into the positioning groove 710 for alignment, and the rubber ring 708 improves the sealing and also buffers vibration. After the protective net 704 is installed in place, the stop rod 702 is inserted into the slot 706 of the docking sleeve 70. Then, turn the second knob 709 so that its bottom contacts the motor 603. The protective net 704 moves upward, thereby driving the stop rod 702 to press against the inner wall of the slot 706, which not only improves the firmness of the installation of the protective net 704 but also buffers vibration. Finally, the purified high-purity methane is stored in the storage tank, and the substandard gas is reprocessed through the return pipeline. The PLC control system monitors various parameters in real time to ensure the automated and stable operation of the equipment.

[0039] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent biogas membrane purification skid-mounted device, comprising a biogas purification skid body (1), characterized in that, A conveying structure (2) is provided on the biogas purification skid body (1), a positioning structure (3) is connected to the conveying structure (2), and a fixing structure (4) is provided on the positioning structure (3). The conveying structure (2) includes a first pipe (201) and a second pipe (202) connected to the first pipe (201). The biogas purification skid body (1) is provided with multiple first pipes (201) and second pipes (202). Adjacent ends of the first pipes (201) and second pipes (202) are fixedly connected to docking plates (203). Two docking plates (203) abut against each other. A positioning structure (3) is provided between the two docking plates (203). The positioning structure (3) includes mounting sleeves (301). Two mounting sleeves (301) are provided on the first pipe (201). The two mounting sleeves (301) abut against each other. The top of the mounting sleeve (301) abuts against one of the mating plates (203). The top surface of the mounting sleeve (301) is fixedly connected to two positioning posts (305). The two mating plates (203) are engaged with the positioning posts (305). The fixing structure (4) includes a rotating shaft (401) and a rotating rod (403) fixedly connected to the rotating shaft (401). The two mounting sleeves (301) are rotatably connected to two rotating shafts (401). The top of the rotating rod (403) is slidably connected to a pressure plate (404). The pressure plate (404) is slidably connected to the second pipe (202). The bottom surface of the pressure plate (404) abuts against the other mating plate (203).

2. The intelligent biogas membrane purification skid-mounted equipment according to claim 1, characterized in that: The cross-section of the docking plate (203) is convex, and four holes are pre-drilled on both docking plates (203).

3. The intelligent biogas membrane purification skid-mounted equipment according to claim 2, characterized in that: The two adjacent mounting sleeves (301) are fixed together by two bolts (302). A rubber pad (303) is fixedly connected to the inner side of the mounting sleeve (301), and the inner side of the rubber pad (303) is attached to the first pipe (201).

4. The intelligent biogas membrane purification skid-mounted equipment according to claim 3, characterized in that: One of the mounting sleeves (301) is fixedly connected to a guide plate (304), and the two adjacent docking plates (203) are both attached to the guide plate (304).

5. The intelligent biogas membrane purification skid-mounted equipment according to claim 4, characterized in that: A sealing ring (306) is engaged on one of the docking discs (203), the sealing ring (306) is engaged with four positioning posts (305), and the other docking disc (203) is in contact with the sealing ring (306).

6. The intelligent biogas membrane purification skid-mounted equipment according to claim 1, characterized in that: Both ends of the two rotating shafts (401) are fixedly connected to the mounting sleeve (301) with torsion springs (402), and the two rotating shafts (401) are arranged symmetrically.

7. The intelligent biogas membrane purification skid-mounted equipment according to claim 6, characterized in that: The top of the rotating rod (403) is rotatably connected to a first knob (405), and the pressure plate (404) is threadedly connected to the first knob (405). The bottom surface of the pressure plate (404) is fixedly connected to an anti-detachment column (406), and the anti-detachment column (406) is engaged with the adjacent docking plate (203).

8. The intelligent biogas membrane purification skid-mounted equipment according to claim 1, characterized in that: A cooler (5) is installed on the biogas purification skid body (1). A heat dissipation structure (6) is provided on the cooler (5). The heat dissipation structure (6) includes a mounting base (601) and a mounting plate (602) fixedly connected to the mounting base (601). The mounting base (601) is fixedly connected to the cooler (5). A motor (603) is fixedly connected to the mounting plate (602). A fan blade (604) is fixedly connected to the output shaft of the motor (603). A quick-release structure (7) is provided on the mounting base (601).

9. The intelligent biogas membrane purification skid-mounted equipment according to claim 8, characterized in that: The quick-release structure (7) includes a mounting block (701) and a stop bar (702) slidably connected within the mounting block (701). Mounting blocks (701) are fixedly connected to both sides of the mounting base (601). A tension spring (703) is fixedly connected between the stop bar (702) and the inner wall of the mounting block (701). A protective net (704) is engaged at the center of the mounting base (601). A mating sleeve (705) is fixedly connected to the protective net (704) near the mounting block (701). A slot (706) is provided inside the mating sleeve (705). The stop bar (702) is engaged in the slot (706). A second knob (709) is threadedly connected to the center of the protective net (704). The bottom of the second knob (709) abuts against the motor (603).

10. The intelligent biogas membrane purification skid-mounted equipment according to claim 9, characterized in that: A pressure rod (707) is slidably connected to the top of the mounting block (701). A rubber ring (708) is fixedly connected to the mounting base (601) near the edge of the protective net (704). The protective net (704) abuts against the rubber ring (708). Two positioning grooves (710) are opened on the mounting base (601). Two positioning blocks (711) are fixedly connected to the protective net (704). The two positioning blocks (711) are respectively engaged with the adjacent positioning grooves (710).

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