Evaporation gas recovery device for methylcyclohexane hydrogen storage system

Abstract

This utility model relates to the technical field of evaporation gas recovery devices, and more particularly to an evaporation gas recovery device for a methylcyclohexane hydrogen storage system. It includes a fixed support, a condensation mechanism fixedly arranged on one side of the upper part of the fixed support, an adsorption tank fixedly arranged on the other side of the upper part of the fixed support, a liquid storage tank fixedly arranged inside the fixed support, and an adsorption tank installed on one side of the fixed support. It also includes two sets of rigid filter plates embedded inside the adsorption tank. Each set of rigid filter plates has adsorption filter cotton embedded in its inner wall, and each set of adsorption filter cotton has two sets of compression pulleys on its inner side. Drainage mechanisms are provided between the condensation mechanism and the adsorption tank and the liquid storage tank, respectively. An exhaust mechanism is provided at the bottom of the liquid storage tank. This utility model, an evaporation gas recovery device for a methylcyclohexane hydrogen storage system, effectively collects and reuses the liquid generated during the recovery process, improving resource utilization.

Description

Technical Field

[0001] This utility model relates to the technical field of evaporation gas recovery devices, and in particular to an evaporation gas recovery device for a methylcyclohexane hydrogen storage system. Background Technology

[0002] In the actual operation of a methylcyclohexane hydrogen storage system, the treatment and recovery of evaporated gases are key to ensuring efficient system operation and improving resource utilization. Due to the volatility of methylcyclohexane, a certain amount of evaporated gases will inevitably be generated during storage and transportation. If these evaporated gases are directly released into the atmosphere, it will not only waste methylcyclohexane resources and increase operating costs, but also cause some pollution to the environment. At the same time, the evaporated gases may also contain a small amount of hydrogen, and direct release also poses safety hazards. When using evaporative gas recovery devices, there are currently some devices on the market for treating evaporative gases. Most of these devices adopt relatively simple processing methods. For example, some devices only use a single condensation method to process the evaporative gas, using simple condensation equipment to condense some of the liquid components in the gas to achieve a certain degree of recovery. Some devices combine simple filtration structures to perform preliminary impurity filtration on the condensed gas. However, when these existing devices process evaporative gases, the overall processing flow is not refined enough, the separation effect of different components in the gas is limited, and it is difficult to achieve efficient gas-liquid separation and comprehensive collection of liquid generated during the recovery process.

[0003] Therefore, to address the issue of inconvenient resource utilization in continuous gas processing scenarios, an evaporation gas recovery device for a methylcyclohexane hydrogen storage system can be designed. When using this device, in terms of gas-liquid separation, multi-stage filtration via a condensation mechanism, adsorption chamber, and adsorption tank achieves efficient separation of gas and liquid components in the evaporation gas. The condensation mechanism extends the gas condensation time, initially separating a large amount of liquid. The adsorption filter cotton in the adsorption chamber further intercepts and adsorbs residual liquid. The internal structure of the adsorption tank deeply purifies the gas, effectively removing impurities and liquid components, significantly improving the efficiency and quality of gas-liquid separation. This results in purer recovered gas, meeting the stringent requirements for subsequent storage and use. Regarding liquid collection and treatment, the device features a comprehensive drainage mechanism. Both condensate from condensation and adsorbed water squeezed from the adsorption filter cotton can be smoothly collected into the storage tank, preventing liquid accumulation and waste within the device. This achieves effective collection and reuse of liquid generated during the recovery process, improving resource utilization. Utility Model Content

[0004] To overcome the problem that some evaporative gas recovery devices only use a single condensation method to process evaporative gas, resulting in an insufficiently refined overall processing flow, limited separation of different components in the gas, difficulty in achieving efficient gas-liquid separation, and incomplete collection of liquid generated during the recovery process, thus hindering resource utilization in continuous gas processing scenarios.

[0005] The technical solution of this utility model is as follows: an evaporation gas recovery device for a methylcyclohexane hydrogen storage system, comprising a fixed support, a condensation mechanism fixedly arranged on one side above the fixed support, an adsorption box fixedly arranged on the other side above the fixed support, a storage tank fixedly arranged inside the fixed support, an adsorption tank installed on one side of the fixed support, and two sets of rigid filter plates embedded inside the adsorption box. Each set of rigid filter plates has an adsorption filter cotton embedded in its inner wall, and each set of adsorption filter cotton has two sets of compression pulleys on its inner side. A drive mechanism is installed on the outer wall of the adsorption box. A drainage mechanism is provided between the condensation mechanism and the adsorption box and the storage tank, respectively. A transmission mechanism is provided between the condensation mechanism and the adsorption box. A suction mechanism is provided between the adsorption box and the adsorption tank. An exhaust mechanism is provided at the bottom of the storage tank.

[0006] Preferably, when using this evaporative gas recovery device, in terms of gas-liquid separation, the multi-stage filtration process of the condensation mechanism, adsorption box, and adsorption tank achieves efficient separation of gas and liquid components in the evaporative gas. The condensation mechanism extends the gas condensation time, initially separating a large amount of liquid. The adsorption filter cotton in the adsorption box further intercepts and adsorbs residual liquid. The internal structure of the adsorption tank deeply purifies the gas, effectively removing impurities and liquid components from the gas, greatly improving the efficiency and quality of gas-liquid separation, making the recovered gas purer, and meeting the strict requirements for subsequent storage and use. In terms of liquid collection and treatment, the device is designed with a complete drainage mechanism. Whether it is condensate generated by condensation or adsorbed water squeezed out from the adsorption filter cotton, it can be smoothly collected into the storage tank through the drainage mechanism, avoiding the accumulation and waste of liquid inside the device, realizing the effective collection and reuse of liquid generated during the recovery process, and improving the utilization rate of resources.

[0007] Preferably, the condensation mechanism includes a condensation chamber, condensation tube bundles, baffles, an inlet valve, and an evaporation gas connection pipe. The condensation chamber is fixedly installed on one side of the upper part of the fixed bracket, and an evaporation gas connection pipe is connected to one side of the condensation chamber. An inlet valve is installed at the inlet end of the evaporation gas connection pipe. Multiple sets of condensation tube bundles are stacked inside the condensation chamber, and multiple sets of baffles are fixedly installed inside the condensation chamber. The multiple sets of baffles are arranged horizontally and staggered.

[0008] Preferably, the transmission mechanism includes a transmission pipe and a transmission air pump. The transmission pipe is fixedly installed between the condensation box and the adsorption box, and the transmission air pump is sleeved on the side wall of the transmission pipe.

[0009] Preferably, the drive mechanism includes a hydraulic lifting rod, a guide rod, a connecting rod, a guide bracket, and a lifting bracket. The hydraulic lifting rod is fixedly installed on the outer wall of the adsorption box. The extension end of the hydraulic lifting rod is fixedly connected to the lifting bracket. The bottom sides of the lifting bracket are fixedly connected to the connecting rod. Two sets of guide brackets are installed inside the adsorption box. Two sets of guide rods are symmetrically fixedly installed on both sides of the inner cavity of the adsorption box.

[0010] Preferably, each set of connecting rods slides through the top of the adsorption box, each set of guide extrusion pulleys is rotatably installed inside the guide bracket, the top of each set of guide brackets is fixedly connected to the lower end of the connecting rod, and the two sides of each set of guide brackets are slidably sleeved on the side wall of the guide rod.

[0011] Preferably, the air extraction mechanism includes an air supply pipe, an air outlet valve, and an air extraction pump. An air supply pipe is fixedly installed between the adsorption box and the top of the adsorption tank. An air extraction pump is fitted on the side wall of the air supply pipe, and an air outlet valve is installed at the air outlet end of the air supply pipe.

[0012] Preferably, the exhaust mechanism includes a molecular sieve adsorption layer, an exhaust pipe, and an exhaust pump. The adsorption tank has multiple molecular sieve adsorption layers inside, the bottom of the adsorption tank is connected to an exhaust pipe, and the side wall of the exhaust pipe is fitted with an exhaust pump.

[0013] Preferably, the drainage mechanism includes a drainage branch pipe, a manifold pipe, and a drainage valve. The bottom of the condensation tank and the adsorption tank are respectively connected to the drainage branch pipe, and the top of the storage tank is equipped with a manifold pipe. The water inlet ends on both sides of the top of the manifold pipe are fixedly connected to the water outlet ends of the two sets of drainage branch pipes, and a drainage valve is installed at the connection between the water inlet end of the manifold pipe and the water outlet end of the drainage branch pipe.

[0014] Preferably, slide rails are symmetrically fixedly installed on the top of both sides of the adsorption box, and slide rods are fixedly installed inside each set of slide rails. Two sets of pressure rods are installed on the top of the adsorption box, and return springs are fixedly installed between the two ends of each set of pressure rods and the inner wall of the slide rail.

[0015] Preferably, the two ends of each set of pressure rods are slidably sleeved on the side wall of the slide rod, one end of the return spring is fixedly connected to the end of the pressure rod, and the other end of the return spring is fixedly connected to the inner wall of the slide rail.

[0016] The beneficial effects of this utility model are: 1. When using this evaporative gas recovery device, in terms of gas-liquid separation, the multi-stage filtration process of the condensation mechanism, adsorption box, and adsorption tank achieves efficient separation of gas and liquid components in the evaporative gas. The condensation mechanism extends the gas condensation time, initially separating a large amount of liquid. The adsorption filter cotton in the adsorption box further intercepts and adsorbs residual liquid. The internal structure of the adsorption tank deeply purifies the gas, effectively removing impurities and liquid components, greatly improving the efficiency and quality of gas-liquid separation, making the recovered gas purer and meeting the stringent requirements for subsequent storage and use. In terms of liquid collection and treatment, the device is designed with a complete drainage mechanism. Whether it is condensate generated by condensation or adsorbed water squeezed out from the adsorption filter cotton, it can be smoothly collected into the storage tank through the drainage mechanism, avoiding the accumulation and waste of liquid inside the device, realizing the effective collection and reuse of liquid generated during the recovery process, and improving the utilization rate of resources.

[0017] 2. The convenient replacement design of the rigid filter plate and adsorption filter cotton allows operators to quickly and easily complete the operation when maintenance or replacement of filter media is required. Simply pull the pressure rod outward and lift the rigid filter plate to disassemble it, and reverse the operation to install it. This greatly shortens the downtime for equipment maintenance, improves the operating efficiency and ease of use of the equipment, and reduces maintenance costs. Attached Figure Description

[0018] Figure 1 The diagram shown is a first three-dimensional structural schematic of an embodiment 1 of the evaporation gas recovery device of the methylcyclohexane hydrogen storage system of this utility model. Figure 2 The diagram shown is a first partial three-dimensional structural schematic of an embodiment 1 of the evaporation gas recovery device of the methylcyclohexane hydrogen storage system of this utility model. Figure 3 The diagram shown is a three-dimensional structural schematic of the drive mechanism and multiple sets of extrusion pulleys combined in Embodiment 1 of the evaporation gas recovery device of the methylcyclohexane hydrogen storage system of this utility model. Figure 4 The diagram shown is a half-section plan view of the adsorption box and condensation box of an evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to Embodiment 1 of this utility model. Figure 5 The diagram shown is a half-section three-dimensional structural diagram of the adsorption box and the condensation box of an evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to Embodiment 1 of this utility model. Figure 6 The diagram shown is a first partial three-dimensional structural schematic of an embodiment 2 of an evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to this utility model. Figure 7 What is shown is Figure 6 Enlarged 3D structural diagram of the circled area; Figure 8 The diagram shown is a three-dimensional structural schematic of the pressure bar and guide mechanism combination of Embodiment 2 of the evaporation gas recovery device of the methylcyclohexane hydrogen storage system of this utility model. Explanation of reference numerals in the attached drawings: 1. Fixed bracket; 2. Adsorption chamber; 3. Liquid storage tank; 4. Adsorption tank; 5. Rigid filter plate; 6. Adsorption filter cotton; 7. Squeezing pulley; 8. Condensation chamber; 9. Condensation tube bundle; 10. Partition plate; 11. Inlet valve; 12. Evaporation gas connection pipe; 13. Transmission pipe; 14. Transmission air pump; 15. Hydraulic lifting rod; 16. Guide rod; 17. Connecting rod; 18. Guide bracket; 19. Lifting bracket; 20. Gas delivery pipe; 21. Outlet valve; 22. Suction air pump; 23. Molecular sieve adsorption layer; 24. Exhaust pipe; 25. Exhaust air pump; 26. Drainage branch pipe; 27. Manifold; 28. Drain valve; 29. ​​Slide rail; 30. Slide rod; 31. Pressure rod; 32. Return spring. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1 Please see Figure 1 and Figure 2 This utility model provides an embodiment of an evaporation gas recovery device for a methylcyclohexane hydrogen storage system, comprising a fixed support 1, a condensation mechanism fixedly arranged on one side above the fixed support 1, an adsorption box 2 fixedly arranged on the other side above the fixed support 1, a liquid storage tank 3 fixedly arranged inside the fixed support 1, an adsorption tank 4 installed on one side of the fixed support 1, and two sets of rigid filter plates 5 embedded inside the adsorption box 2. Each set of rigid filter plates 5 has an adsorption filter cotton 6 embedded in its inner wall, and each set of adsorption filter cotton 6 has two sets of compression pulleys 7 arranged on its inner side. A drive mechanism is installed on the outer wall of the adsorption box 2. A drainage mechanism is provided between the condensation mechanism and the adsorption box 2 and the liquid storage tank 3, respectively. A transmission mechanism is provided between the condensation mechanism and the adsorption box 2. A suction mechanism is provided between the adsorption box 2 and the adsorption tank 4. An exhaust mechanism is provided at the bottom of the liquid storage tank 3.

[0021] Please see Figure 2 and Figure 5The condensation mechanism includes a condenser housing 8, condenser tube bundles 9, baffles 10, an inlet valve 11, and an evaporating gas connecting pipe 12. The condenser housing 8 is fixedly installed on one side of the upper part of the fixed bracket 1. An evaporating gas connecting pipe 12 is connected to one side of the condenser housing 8. An inlet valve 11 is installed at the inlet end of the evaporating gas connecting pipe 12. Multiple sets of condenser tube bundles 9 are stacked inside the condenser housing 8. Multiple sets of baffles 10 are fixedly installed inside the condenser housing 8. The baffles 10 are arranged laterally and staggered. Evaporating gas enters the condenser housing 8 through the evaporating gas connecting pipe 12. The condenser housing 8 contains multiple sets of condenser tube bundles 9 stacked together, and multiple sets of baffles 10 are fixedly installed internally. The partitions 10 form a special exhaust channel, which can effectively increase the residence time of the gas in the condenser box 8. During this extended period of time, the evaporated gas comes into full contact with the condenser tube bundle 9 to achieve liquid condensation. Some of the liquid components in the gas are converted into condensate droplets that adhere to the inner wall of the condenser box 8 or the surface of the condenser tube bundle 9. The transmission mechanism includes a transmission pipe 13 and a transmission air pump 14. The transmission pipe 13 is fixedly installed between the condenser box 8 and the adsorption box 2. The transmission air pump 14 is sleeved on the side wall of the transmission pipe 13. After the initial condensation is completed, the transmission air pump 14 is started. The transmission air pump 14 transports the condensed gas from the condenser box 8 to the inside of the adsorption box 2 through the transmission pipe 13.

[0022] Please see Figure 2 and Figure 3The driving mechanism includes a hydraulic lifting rod 15, a guide rod 16, a connecting rod 17, a guide bracket 18, and a lifting bracket 19. The hydraulic lifting rod 15 is fixedly installed on the outer wall of the adsorption box 2. The extension end of the hydraulic lifting rod 15 is fixedly connected to the lifting bracket 19. Connecting rods 17 are fixedly connected to both sides of the bottom of the lifting bracket 19. Two sets of guide brackets 18 are installed inside the adsorption box 2. Two sets of guide rods 16 are symmetrically fixedly installed on both sides of the inner cavity of the adsorption box 2. When the hydraulic lifting rod 15 is activated, its extension end drives the lifting bracket 19 to perform a reciprocating lifting motion. Since the connecting rods 17 fixedly connected to both sides of the bottom of the lifting bracket 19 slide through the top of the adsorption box 2 and are fixedly connected to the guide brackets 18 installed inside, and the guide brackets 18 have sliding sleeves on both sides... Located on the side wall of guide rod 16, the movement of lifting bracket 19 will drive guide bracket 18 to move up and down synchronously. The guide squeezing pulley 7, which is rotatably installed inside guide bracket 18, will move up and down reciprocally along the outer wall of adsorption filter cotton 6, squeezing the adsorbed water on the filter cotton. Each set of connecting rods 17 slides through the top of adsorption box 2. Each set of guide squeezing pulleys 7 is rotatably installed inside guide bracket 18. The top of each set of guide brackets 18 is fixedly connected to the lower end of connecting rod 17. The two sides of each set of guide brackets 18 are slidably sleeved on the side wall of guide rod 16. The squeezing pulley 7 will move up and down reciprocally along the outer wall of adsorption filter cotton 6, squeezing the adsorbed water on the filter cotton.

[0023] Please see Figure 4 and Figure 5The gas extraction mechanism includes a gas supply pipe 20, an exhaust valve 21, and a gas extraction pump 22. A gas supply pipe 20 is fixedly installed between the top of the adsorption box 2 and the top of the adsorption tank 4. The gas extraction pump 22 is fitted onto the side wall of the gas supply pipe 20, and an exhaust valve 21 is installed at the outlet end of the gas supply pipe 20. When the gas extraction pump 22 is activated, the gas is transported through the gas supply pipe 20 to the inside of the adsorption tank 4. The exhaust mechanism includes a molecular sieve adsorption layer 23, an exhaust pipe 24, and an exhaust pump 25. Multiple molecular sieve adsorption layers 23 are arranged inside the adsorption tank 4. An exhaust pipe 24 is connected to the bottom of the adsorption tank 4, and an exhaust pump 25 is fitted onto the side wall of the exhaust pipe 24. The adsorption tank 4 contains multiple molecular sieve adsorption layers 23. When gas passes through these molecular sieve adsorption layers 23, the molecular sieves, due to their special pore structure and... The adsorption performance deeply adsorbs trace impurities in the gas, further purifying the gas. Finally, the exhaust gas pump 25 is started to transport the gas that has undergone multi-layer purification to the gas storage tank through the exhaust pipe 24, completing the recovery, purification and storage process of the evaporated gas. The drainage mechanism includes a drainage diversion pipe 26, a manifold pipe 27 and a drainage valve 28. The bottom of the condensation box 8 and the adsorption box 2 are respectively connected to the drainage diversion pipe 26. The top of the liquid storage tank 3 is equipped with a manifold pipe 27. The water inlet ends on both sides of the top of the manifold pipe 27 are fixedly connected to the water outlet ends of the two sets of drainage diversion pipes 26. A drainage valve 28 is installed at the connection between the water inlet end of the manifold pipe 27 and the water outlet end of the drainage diversion pipe 26. The squeezed-out adsorbed water droplets enter the manifold pipe 27 through the drainage diversion pipe 26 and finally flow into the liquid storage tank 3.

[0024] When using this evaporation gas recovery device, the working principle is as follows: When the evaporation gas recovery device of the methylcyclohexane hydrogen storage system is working, the inlet end of the evaporation gas connection pipe 12 is first connected to the outlet pipe of the methylcyclohexane hydrogen storage system, and the outlet end of the exhaust pipe 24 is connected to the inlet end of the gas storage tank 3, thereby constructing a complete evaporation gas recovery path.

[0025] The evaporated gas enters the condenser chamber 8 through the evaporated gas connecting pipe 12. Multiple sets of condenser tube bundles 9 are stacked in the condenser chamber 8. At the same time, multiple sets of horizontally arranged and staggered baffles 10 are fixedly installed inside. These baffles 10 form a special exhaust channel, which can effectively increase the residence time of the gas in the condenser chamber 8. During this extended period of time, the evaporated gas comes into full contact with the condenser tube bundles 9, realizing liquid condensation. Some of the liquid components in the gas are converted into condensate droplets and adhere to the inner wall of the condenser chamber 8 or the surface of the condenser tube bundles 9.

[0026] After initial condensation is completed, the transfer gas pump 14 is started. The transfer gas pump 14 transports the condensed gas from the condensation chamber 8 to the adsorption chamber 2 through the transfer pipe 13. The adsorption chamber 2 is equipped with two sets of rigid filter plates 5. Each set of rigid filter plates 5 has an adsorption filter cotton 6 embedded in its inner wall. When the gas passes through these two sets of adsorption filter cotton 6, the adsorption filter cotton 6 plays an interception and adsorption role, further adsorbing the residual liquid components in the gas, making the gas drier and purer.

[0027] After being processed by the adsorption filter cotton 6, the gas is pumped by the gas pump 22 and transported to the adsorption tank 4 through the gas pipeline 20. The adsorption tank 4 is equipped with multiple molecular sieve adsorption layers 23. When the gas passes through these molecular sieve adsorption layers 23, the molecular sieves, with their special pore structure and adsorption performance, deeply adsorb the trace impurities in the gas, further purifying the gas.

[0028] Finally, the exhaust pump 25 is started to transport the gas that has undergone multi-layer purification through the exhaust pipe 24 into the gas storage tank, completing the process of recovering, purifying and storing the evaporated gas.

[0029] Regarding liquid collection, when the equipment stops working, the internal temperature of the condenser box 8 decreases. The condensate droplets previously adhering to the inner wall and the surface of the condenser tube bundle 9 will flow into the manifold 27 through the drain branch pipe 26 due to gravity, and then enter the storage tank 3 for collection. Simultaneously, the adsorption filter cotton 6 in the adsorption box 2 will gradually become saturated during liquid adsorption. At this time, the hydraulic lifting rod 15 is activated. The telescopic end of the hydraulic lifting rod 15 drives the lifting bracket 19 to perform a reciprocating lifting motion. Because the connecting rods 1 fixedly connected to both sides of the bottom of the lifting bracket 19... 7 slides through the top of the adsorption box 2 and is fixedly connected to the guide bracket 18 installed inside. The guide bracket 18 is slidably sleeved on the side wall of the guide rod 16 on both sides. Therefore, the movement of the lifting bracket 19 will drive the guide bracket 18 to lift and lower synchronously. The guide squeezing pulley 7 installed inside the guide bracket 18 will move up and down along the outer wall of the adsorption filter cotton 6, squeezing the adsorbed water on the filter cotton. The squeezed adsorbed water droplets also enter the manifold 27 through the drain diversion pipe 26 and finally flow into the storage tank 3.

[0030] In summary, this evaporative gas recovery device has several significant advantages: In terms of gas-liquid separation, through multi-stage filtration of the condensation mechanism, adsorption box 2, and adsorption tank 4, efficient separation of gas and liquid components in the evaporative gas is achieved. The condensation mechanism utilizes the condenser tube bundle 9 and the specially designed baffle 10 exhaust channel to extend the gas condensation time and initially separate a large amount of liquid. The adsorption filter cotton 6 of the adsorption box 2 further intercepts and adsorbs residual liquid, and the molecular sieve adsorption layer 23 of the adsorption tank 4 deeply purifies the gas, effectively removing impurities and liquid components from the gas, greatly improving the efficiency and quality of gas-liquid separation, making the recovered gas purer, and meeting the strict requirements for subsequent storage and use.

[0031] In terms of liquid collection and treatment, the device is designed with a complete drainage mechanism. Whether it is condensate generated by condensation or adsorbed water squeezed out from adsorbent filter cotton 6, it can be smoothly collected into the storage tank 3 through the drainage diversion pipe 26 and the manifold 27, avoiding the accumulation and waste of liquid inside the device, realizing the effective collection and reuse of liquid generated during the recycling process, and improving the utilization rate of resources.

[0032] In summary, through its scientific and reasonable structural design and working principle, this device achieves efficient recovery and purification of evaporated gases from the methylcyclohexane hydrogen storage system, as well as effective collection of liquids, resulting in significant economic and environmental benefits.

[0033] Example 2 Please see Figure 6 and Figure 7 The difference from Example 1 is that slide rails 29 are symmetrically fixedly installed on the top of both sides of the adsorption box 2, and slide rods 30 are fixedly installed inside each set of slide rails 29. Two sets of pressure rods 31 are installed on the top of the adsorption box 2, and reset springs 32 are fixedly installed between the two ends of each set of pressure rods 31 and the inner wall of the slide rail 29.

[0034] Please see Figure 7 and Figure 8 Each set of pressure rods 31 has its two ends slidably sleeved on the side wall of slide rod 30. One end of return spring 32 is fixedly connected to the end of pressure rod 31, and the other end of return spring 32 is fixedly connected to the inner wall of slide rail 29.

[0035] When the rigid filter plate 5 needs to be replaced, the operator first pulls the pressure rod 31 installed on the top of the adsorption box 2 outward. The two ends of the pressure rod 31 are slidably sleeved on the side wall of the slide rod 30 fixedly installed inside the slide rail 29. The two ends of the pressure rod 31 are respectively fixedly installed between the inner wall of the slide rail 29 and the inner end of the pressure rod 31. When the pressure rod 31 is pulled outward, the two ends of the pressure rod 31 slide smoothly along the slide rod 30. The two sides of the return spring 32 are stretched and deformed. At this time, the top of the rigid filter plate 5 loses its limiting constraint. Then, the handle on the rigid filter plate 5 is pulled upward, which can drive the rigid filter plate 5 and the adsorption filter cotton 6 to be removed from the adsorption box 2 to complete the disassembly. When replacing, the new rigid filter plate 5 and adsorption filter cotton 6 are installed in the reverse operation sequence.

[0036] In addition, the convenient replacement design of the rigid filter plate 5 and the adsorption filter cotton 6 allows operators to quickly and easily complete the operation when maintenance or replacement of filter media is required. The rigid filter plate 5 can be disassembled by pulling the pressure rod 31 outward and lifted, and can be installed by reversing the operation. This greatly shortens the downtime for equipment maintenance, improves the operating efficiency and ease of use of the equipment, and reduces maintenance costs.

[0037] Through the above steps, when using this evaporative gas recovery device, in terms of gas-liquid separation, the multi-stage filtration process of the condensation mechanism, adsorption box 2, and adsorption tank 4 achieves efficient separation of gas and liquid components in the evaporative gas. The condensation mechanism extends the gas condensation time, initially separating a large amount of liquid. The adsorption filter cotton 6 of the adsorption box 2 further intercepts and adsorbs residual liquid. The internal structure of the adsorption tank 4 deeply purifies the gas, effectively removing impurities and liquid components from the gas, greatly improving the efficiency and quality of gas-liquid separation, making the recovered gas purer, and meeting the strict requirements for subsequent storage and use. In terms of liquid collection and treatment, the device is designed with a complete drainage mechanism. Whether it is the condensate generated by condensation or the adsorbed water squeezed out from the adsorption filter cotton 6, it can be smoothly collected into the storage tank 3 through the drainage mechanism, avoiding the accumulation and waste of liquid inside the device, realizing the effective collection and reuse of liquid generated during the recovery process, and improving the utilization rate of resources.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An evaporation gas recovery device for a methylcyclohexane hydrogen storage system, comprising a fixed support (1), a condensation mechanism fixedly arranged on one side above the fixed support (1), an adsorption tank (2) fixedly arranged on the other side above the fixed support (1), a liquid storage tank (3) fixedly arranged inside the fixed support (1), and an adsorption tank (4) installed on one side of the fixed support (1), characterized in that: It also includes two sets of rigid filter plates (5), which are embedded inside the adsorption box (2). Each set of rigid filter plates (5) has an adsorption filter cotton (6) embedded in its inner wall. Each set of adsorption filter cotton (6) has two sets of squeezing pulleys (7) on its inner side. The outer wall of the adsorption box (2) is equipped with a driving mechanism. The condensation mechanism and the adsorption box (2) are respectively connected to the storage tank (3) with a drainage mechanism. The condensation mechanism is connected to the adsorption box (2) with a transmission mechanism. The adsorption box (2) is connected to the adsorption tank (4) with a suction mechanism. The bottom of the storage tank (3) is equipped with an exhaust mechanism.

2. The evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to claim 1, characterized in that: The condensing mechanism includes a condensing chamber (8), condensing tube bundles (9), partitions (10), an inlet valve (11), and an evaporating gas connecting pipe (12). The condensing chamber (8) is fixedly installed on one side above the fixed bracket (1). An evaporating gas connecting pipe (12) is connected to one side of the condensing chamber (8). An inlet valve (11) is installed at the inlet end of the evaporating gas connecting pipe (12). Multiple sets of condensing tube bundles (9) are stacked inside the condensing chamber (8). Multiple sets of partitions (10) are fixedly installed inside the condensing chamber (8). The multiple sets of partitions (10) are arranged horizontally and staggered.

3. The evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to claim 2, characterized in that: The transmission mechanism includes a transmission pipe (13) and a transmission air pump (14). The transmission pipe (13) is fixedly installed between the condensation box (8) and the adsorption box (2). The transmission air pump (14) is sleeved on the side wall of the transmission pipe (13).

4. The evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to claim 1, characterized in that: The drive mechanism includes a hydraulic lifting rod (15), a guide rod (16), a connecting rod (17), a guide bracket (18), and a lifting bracket (19). The hydraulic lifting rod (15) is fixedly installed on the outer wall of the adsorption box (2). The extension end of the hydraulic lifting rod (15) is fixedly connected to the lifting bracket (19). The bottom sides of the lifting bracket (19) are fixedly connected to the connecting rod (17). Two sets of guide brackets (18) are installed inside the adsorption box (2). Two sets of guide rods (16) are symmetrically fixedly installed on both sides of the inner cavity of the adsorption box (2).

5. The evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to claim 4, characterized in that: Each set of connecting rods (17) slides through the top of the adsorption box (2), each set of guide extrusion pulleys (7) is rotatably installed inside the guide bracket (18), the top of each set of guide brackets (18) is fixedly connected to the lower end of the connecting rod (17), and the two sides of each set of guide brackets (18) are slidably sleeved on the side wall of the guide rod (16).

6. The evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to claim 1, characterized in that: The gas extraction mechanism includes a gas delivery pipe (20), an exhaust valve (21), and a gas extraction pump (22). A gas delivery pipe (20) is fixedly installed between the top of the adsorption box (2) and the top of the adsorption tank (4). The gas extraction pump (22) is sleeved on the side wall of the gas delivery pipe (20), and an exhaust valve (21) is installed at the exhaust end of the gas delivery pipe (20).

7. The evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to claim 1, characterized in that: The exhaust mechanism includes a molecular sieve adsorption layer (23), an exhaust pipe (24) and an exhaust pump (25). The adsorption tank (4) is provided with multiple molecular sieve adsorption layers (23). The bottom of the adsorption tank (4) is connected to the exhaust pipe (24), and the exhaust pump (25) is sleeved on the side wall of the exhaust pipe (24).

8. The evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to claim 2, characterized in that: The drainage mechanism includes a drainage branch pipe (26), a manifold pipe (27), and a drain valve (28). The bottom of the condensation box (8) and the adsorption box (2) are respectively connected to the drainage branch pipe (26). The top of the storage tank (3) is equipped with a manifold pipe (27). The water inlet ends on both sides of the top of the manifold pipe (27) are fixedly connected to the water outlet ends of the two sets of drainage branch pipes (26). A drain valve (28) is installed at the connection between the water inlet end of the manifold pipe (27) and the water outlet end of the drainage branch pipe (26).

9. The evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to claim 1, characterized in that: The top of the adsorption box (2) is symmetrically fixed with slide rails (29), and slide rods (30) are fixedly installed inside each set of slide rails (29). Two sets of pressure rods (31) are installed on the top of the adsorption box (2). Reset springs (32) are fixedly installed between the two ends of each set of pressure rods (31) and the inner wall of the slide rail (29).

10. The evaporation gas recovery device for a methylcyclohexane hydrogen storage system according to claim 9, characterized in that: The two ends of each pressure rod (31) are slidably sleeved on the side wall of the slide rod (30). One end of the return spring (32) is fixedly connected to the end of the pressure rod (31), and the other end of the return spring (32) is fixedly connected to the inner wall of the slide rail (29).

Images