Hydrogen purification and separation equipment based on pervaporation method

Abstract

The utility model discloses hydrogen purification and separation equipment based on a pervaporation method, and relates to the technical field of gas separation, the hydrogen purification and separation equipment based on the pervaporation method comprises a pretreatment tank, a pervaporation separation tank and a purification tank, the upper end of the pretreatment tank is provided with a gas inlet pipe, and the pretreatment tank is internally provided with an inner container; sleeves are symmetrically mounted on the outer wall of the pretreatment tank, connecting pipes communicated with the interiors of the sleeves are arranged on the outer walls of the sleeves, filtering assemblies are detachably mounted in the sleeves, and each filtering assembly comprises a first filtering part, a second filtering part and a guiding part; according to the gas separation device, particles in the gas can be filtered by arranging the filtering assembly, so that the separation effect is improved, and multi-stage filtering can be carried out by arranging the first filtering part, the second filtering part and the guiding part, so that the filtering effect is ensured, and the separation effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas separation, in particular to hydrogen purification and separation equipment based on a pervaporation method. Background Art

[0002] As a clean energy source, hydrogen is expanding its applications in applications such as automotive power and household electricity generation. Blending hydrogen into pipeline natural gas (also known as hydrogen-blended natural gas) facilitates long-distance, low-cost transportation of hydrogen and is an effective means of transporting hydrogen. Blending 5%-20% hydrogen into medium- and low-pressure natural gas pipelines has entered pilot projects in countries such as the UK, Germany, Australia, France, and Italy. In Europe, the HylyPure project (grant number 843910) is underway to purify hydrogen from hydrogen-blended natural gas. In addition to experimental hydrogen-blended natural gas, coal-to-syngas, converter gas, and metallurgical blast furnace gas also contain certain amounts of hydrogen.

[0003] Pervaporation (PVAP) is an emerging membrane separation technology. PVAP utilizes the chemical potential difference between upstream and downstream components of the feed solution as the driving force for mass transfer, and leverages differences in the membrane's affinity for and resistance to mass transfer of different components in the feed solution to achieve selectivity. Membrane materials are crucial to achieving energy efficiency and high efficiency in the PV process. Its applications in chemical production include dehydration of ethanol-water azeotropes, dehydration of organic solvents, and removal of organic matter from water.

[0004] According to the published patent with patent announcement number CN114684788B: This hydrogen separation and purification device for hydrogen-containing mixed gas can purify the purified gas again, increase efficiency and save raw materials, but it cannot perform pretreatment. During separation and purification, there may be problems such as the separation time being too long or the effect being reduced due to the presence of particulate matter inside the gas. Utility Model Content

[0005] The utility model provides a hydrogen purification and separation device based on the pervaporation method, which has the advantage of pretreatment and solves the problem that direct separation and purification without pre-filtration in the prior art may result in excessively long separation time or reduced effect.

[0006] To achieve the purpose of pretreatment, the present invention provides the following technical solution: a hydrogen purification and separation equipment based on pervaporation method, comprising a pretreatment tank, a pervaporation separation tank and a purification tank, the upper end of the pretreatment tank is provided with an air inlet pipe, the air inlet pipe passes through the pretreatment tank and extends into the interior of the pretreatment tank, an inner tank is installed in the pretreatment tank, an air outlet pipe is provided at the lower end of the inner tank, the air outlet pipe passes through the pretreatment tank and is connected to the pervaporation separation tank, the pervaporation separation tank is connected to the purification tank, and a guide pipe is provided at the lower end of the purification tank, a sleeve is symmetrically installed on the outer wall of the pretreatment tank, the sleeve passes through the pretreatment tank and extends into the interior of the inner tank, the outer wall of the sleeve is provided with a connecting pipe connected to the interior of the sleeve, a filter assembly is detachably installed in the sleeve, the filter assembly comprises a first filter part, a second filter part and a guide part, the guide part is used to guide the gas to the first filter part and the second filter part.

[0007] Preferably, the first filter portion includes a mounting tube and a first sealing ring, the mounting tube is detachably connected to the sleeve and extends into the sleeve, the first sealing ring is installed on the outer wall of the mounting tube and contacts the inner wall of the sleeve, and the first sealing ring is provided with a filter hole at one end close to the connecting pipe.

[0008] Preferably, the second filter portion includes a filter element and a second sealing ring. The filter element is detachably mounted in the mounting barrel. The second sealing ring is mounted on the outer wall of the filter element and contacts the inner wall of the mounting barrel.

[0009] Preferably, the bottom wall of the mounting cylinder is provided with a threaded column, and the bottom wall of the filter element is provided with a threaded hole that cooperates with the threaded column.

[0010] Preferably, the guide portion includes a motor, fan blades and a mounting rod, the mounting rod is symmetrically arranged on the outer wall of the motor, the other end of the mounting rod is fixedly connected to the inner wall of the connecting tube, and the fan blades are installed at the output end of the motor.

[0011] Preferably, the outer wall of the sleeve is provided with a first flange, and the outer wall of the mounting cylinder is provided with a second flange that cooperates with the first flange.

[0012] Compared with the existing technology, the utility model provides a hydrogen purification and separation equipment based on pervaporation method, which has the following beneficial effects:

[0013] 1. The hydrogen purification and separation equipment based on the pervaporation method can filter particles in the gas by setting a filter component, thereby improving the separation effect. By setting a first filter part, a second filter part and a guide part, multi-stage filtration can be performed, thereby ensuring the filtering effect and further improving the separation effect.

[0014] 2. By setting up a motor, fan blades and a mounting rod, the fan blades can be driven by the motor to rotate, thereby blowing gas through the fan blades to guide the flow of gas, so that the air can pass through the filter quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the pretreatment tank of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the sleeve and connecting pipe of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the sleeve and the installation cylinder of the utility model;

[0019] Figure 5 This is a schematic diagram of the threaded hole and threaded column structure of the utility model;

[0020] Figure 6 The utility model provides Figure 3 A magnified schematic diagram of the structure of part a.

[0021] In the figure: 1. Pretreatment tank; 11. Air inlet pipe; 12. Inner tank; 13. Sleeve; 131. First flange; 14. Air outlet pipe; 15. Connecting pipe; 2. Permeation vaporization separation tank; 3. Purification tank; 31. Lead-out pipe; 4. Filter assembly; 41. First filter part; 411. Mounting cylinder; 4111. Filter hole; 4112. Threaded column; 4113. Second flange; 412. First sealing ring; 42. Second filter part; 421. Filter element; 4211. Threaded hole; 422. Second sealing ring; 43. Guide part; 431. Motor; 432. Fan blade; 433. Mounting rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0023] See also Figures 1-6The utility model discloses a hydrogen purification and separation device based on pervaporation method, comprising a pretreatment tank 1, a pervaporation separation tank 2 and a purification tank 3, wherein the upper end of the pretreatment tank 1 is provided with an air inlet pipe 11, the air inlet pipe 11 passes through the pretreatment tank 1 and extends into the interior of the pretreatment tank 1, an inner liner 12 is installed in the pretreatment tank 1, the lower end of the inner liner 12 is provided with an air outlet pipe 14, the air outlet pipe 14 passes through the pretreatment tank 1 and is connected to the pervaporation separation tank 2, the pervaporation separation tank 2 is connected to the purification tank 3. Tank 3, the lower end of the purification tank 3 is provided with a guide pipe 31, the outer wall of the pretreatment tank 1 is symmetrically installed with a sleeve 13, the sleeve 13 passes through the pretreatment tank 1 and extends into the interior of the inner tank 12, the outer wall of the sleeve 13 is provided with a connecting pipe 15 connected to the interior of the sleeve 13, and a filter assembly 4 is detachably installed in the sleeve 13, the filter assembly 4 includes a first filter part 41, a second filter part 42 and a guide part 43, and the guide part 43 is used to guide the gas to the first filter part 41 and the second filter part 42.

[0024] The above design can filter particles in the gas by setting up the filter component 4, thereby improving the separation effect, and can perform multi-stage filtration by setting up the first filter part 41, the second filter part 42 and the guide part 43, thereby ensuring the filtering effect and further improving the separation effect.

[0025] See also Figure 3-Figure 6 The first filter portion 41 includes a mounting cylinder 411 and a first sealing ring 412. The mounting cylinder 411 is detachably connected to the sleeve 13 and extends into the sleeve 13. The first sealing ring 412 is mounted on the outer wall of the mounting cylinder 411 and contacts the inner wall of the sleeve 13. The first sealing ring 412 is provided with a filter hole 4111 at one end close to the connecting pipe 15. By providing the mounting cylinder 411, the first sealing ring 412 and the filter hole 4111, preliminary filtration can be performed through the filter hole 4111, and the first sealing ring 412 can prevent the leakage of unfiltered gas, thereby ensuring that the gas can be fully filtered. The second filter portion 42 includes a filter element 421 and The second sealing ring 422, the filter element 421 is detachably installed in the installation cylinder 411, the second sealing ring 422 is installed on the outer wall of the filter element 421 and contacts the inner wall of the installation cylinder 411, by arranging the filter element 421 and the second sealing ring 422, the gas can be filtered for the second time, and the second sealing ring 422 can prevent the leakage of gas that has not been filtered for the second time, ensuring that the gas can be fully filtered, the bottom wall of the installation cylinder 411 is provided with a threaded column 4112, and the bottom wall of the filter element 421 is provided with a threaded hole 4211 that cooperates with the threaded column 4112, and the threaded column 4112 and the threaded hole 4211 are provided to facilitate the installation or removal of the filter element 421.

[0026] See also Figure 1-Figure 5 The outer wall of the sleeve 13 is provided with a first flange 131, and the outer wall of the mounting tube 411 is provided with a second flange 4113 that cooperates with the first flange 131. By setting the first flange 131 and the second flange 4113, the connection between the mounting tube 411 and the sleeve 13 is facilitated. Example 2

[0027] Based on the above embodiment 1, please refer to Figure 3-Figure 5 The guide part 43 includes a motor 431, a fan blade 432 and a mounting rod 433. The mounting rod 433 is symmetrically arranged on the outer wall of the motor 431. The other end of the mounting rod 433 is fixedly connected to the inner wall of the connecting pipe 15. The fan blade 432 is installed at the output end of the motor 431. By setting the motor 431, the fan blade 432 and the mounting rod 433, the fan blade 432 can be driven to rotate by the motor 431, so that the gas is blown by the fan blade 432, guiding the flow of the gas, so that the air can pass through the filter quickly.

[0028] The working principle and use process of this utility model:

[0029] During use, the gas is introduced into the pretreatment tank 1 through the air inlet pipe 11. At the same time, the installation switch starts the motor 431. The motor 431 starts and drives the fan blade 432 to rotate, and the gas is introduced into the connecting pipe 15. The gas enters the installation cylinder 411 through the filter hole 4111, and then enters the inner tank 12 after being filtered by the filter element 421. It is then transported to the permeation vaporization separation tank 2 through the air outlet pipe 14. After entering the permeation vaporization separation tank 2, it is separated and the hydrogen enters the purification tank 3 for purification. After purification, it is discharged through the outlet pipe 31, and the other separated gases are discharged through the conduit of the permeation vaporization separation tank 2.

Claims

1. A hydrogen purification and separation device based on pervaporation method, comprising a pretreatment tank (1), a pervaporation separation tank (2) and a purification tank (3), characterized in that: The upper end of the pretreatment tank (1) is provided with an air inlet pipe (11), the air inlet pipe (11) passes through the pretreatment tank (1) and extends into the interior of the pretreatment tank (1), an inner liner (12) is installed in the pretreatment tank (1), the lower end of the inner liner (12) is provided with an air outlet pipe (14), the air outlet pipe (14) passes through the pretreatment tank (1) and is connected to the pervaporation separation tank (2), the pervaporation separation tank (2) is connected to the purification tank (3), and the lower end of the purification tank (3) is provided with an outlet pipe (31); A sleeve (13) is symmetrically mounted on the outer wall of the pretreatment tank (1), the sleeve (13) passes through the pretreatment tank (1) and extends into the interior of the inner tank (12), the outer wall of the sleeve (13) is provided with a connecting pipe (15) communicating with the interior of the sleeve (13), a filter assembly (4) is detachably mounted in the sleeve (13), the filter assembly (4) comprises a first filter portion (41), a second filter portion (42) and a guide portion (43), the guide portion (43) being used to guide gas to the first filter portion (41) and the second filter portion (42).

2. The hydrogen purification and separation equipment based on pervaporation according to claim 1, characterized in that: The first filter portion (41) comprises a mounting tube (411) and a first sealing ring (412); the mounting tube (411) is detachably connected to the sleeve (13) and extends into the sleeve (13); the first sealing ring (412) is mounted on the outer wall of the mounting tube (411) and contacts the inner wall of the sleeve (13); and a filtering hole (4111) is provided at one end of the first sealing ring (412) close to the connecting pipe (15).

3. The hydrogen purification and separation equipment based on pervaporation according to claim 2, characterized in that: The second filter portion (42) comprises a filter element (421) and a second sealing ring (422); the filter element (421) is detachably mounted in the mounting barrel (411); and the second sealing ring (422) is mounted on the outer wall of the filter element (421) and contacts the inner wall of the mounting barrel (411).

4. The hydrogen purification and separation equipment based on pervaporation according to claim 3, characterized in that: The bottom wall of the mounting cylinder (411) is provided with a threaded column (4112), and the bottom wall of the filter element (421) is provided with a threaded hole (4211) that cooperates with the threaded column (4112).

5. The hydrogen purification and separation equipment based on pervaporation according to claim 1, characterized in that: The guide portion (43) comprises a motor (431), a fan blade (432) and a mounting rod (433), wherein the mounting rod (433) is symmetrically arranged on the outer wall of the motor (431), the other end of the mounting rod (433) is fixedly connected to the inner wall of the connecting pipe (15), and the fan blade (432) is mounted on the output end of the motor (431).

6. The hydrogen purification and separation equipment based on pervaporation according to claim 2, characterized in that: The outer wall of the sleeve (13) is provided with a first flange (131), and the outer wall of the mounting cylinder (411) is provided with a second flange (4113) that cooperates with the first flange (131).

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