A device for separating and purifying hydrogen from a mixed gas

By designing a hydrogen separation and purification device in a mixed gas, and utilizing a combination of a unidirectional section, a stirring section, and a filtration section, the problems of low purification efficiency and narrow applicability of existing devices are solved, achieving the effects of high-efficiency purification and convenient replacement of the filtration section.

CN117123046BActive Publication Date: 2026-06-23中科富海(中山)低温装备制造有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
中科富海(中山)低温装备制造有限公司
Filing Date
2023-08-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing hydrogen separation and purification equipment suffers from low purification efficiency, high requirements for raw material purity, and a narrow range of applications, making it particularly unsuitable for treating waste gas.

Method used

A device for separating and purifying hydrogen in a mixed gas has been designed. By combining a unidirectional section, a stirring section, a slowing section, and a filtration section, the device achieves unidirectional gas transport, stirring acceleration, impurity filtration, and long-term reaction. The filtration section can be easily replaced by a drive and linkage mechanism.

Benefits of technology

It improves hydrogen purification efficiency, can efficiently treat waste gas, meets the purity requirements of food-grade hydrogen, and simplifies the filter replacement process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a hydrogen separation and purification equipment in mixed gas, which comprises a box, a partition plate is fixed in the middle of the box horizontally, a first processing space and a second processing space for placing purified liquid are formed by the partition plate in the box, a flow-through port is arranged on the front side of the partition plate, a sealing plate is fixed in the second processing space longitudinally, a gas input port is arranged on the back side of the box and can communicate with the second processing space, a plurality of one-way parts for inputting gas to the second processing space in one direction are arranged on the sealing plate, a slowing part is arranged on the front side of the second processing space, a stirring part is arranged in the second processing space, a filtering part is arranged in the first processing space, a slot is arranged on the right side of the box and can communicate with the first processing space, a sealing door is symmetrically and movably hinged in the middle of the slot, and compared with the prior art, the efficiency of hydrogen separation and purification can be improved, and the filtering part can be replaced.
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Description

Technical Field

[0001] This invention relates to the field of hydrogen purification technology, and in particular to a device for separating and purifying hydrogen in a mixed gas. Background Technology

[0002] Hydrogen has a wide range of applications, including food processing, machinery manufacturing, and chemical raw materials. It is generally produced through the purification of petrochemical tail gas. Food-grade hydrogen used in food processing requires high purity. Currently, hydrogen purification equipment technology in the industry is divided into two types: crude purification equipment and fine purification equipment. Crude purification equipment has the disadvantage of not being able to obtain high-purity hydrogen, while fine purification equipment requires high initial purity of raw materials, has a narrow range of applications, and a low yield. Existing hydrogen separation and purification equipment has relatively low purification efficiency and is not suitable for purifying waste gas. Summary of the Invention

[0003] The purpose of this invention is to provide a device for separating and purifying hydrogen in a mixed gas, which can solve at least one of the above-mentioned technical problems. The technical solution of this invention is as follows:

[0004] A device for separating and purifying hydrogen from a mixed gas includes: a housing; a partition is horizontally fixed in the middle of the housing; the housing is divided into a first processing space and a second processing space for placing purified liquid by the partition; a flow port is provided on the front side of the partition; a sealing plate is vertically fixed in the second processing space; a gas inlet is provided on the rear side of the housing for communication with the second processing space; multiple unidirectional parts are provided on the sealing plate for unidirectional gas input into the second processing space; a buffer section is provided on the front side of the second processing space; a stirring section is provided in the second processing space; a filter section is provided in the first processing space; a slot is provided on the right side of the housing for communication with the first processing space; a sealing door is symmetrically hinged in the middle of the slot; a drive mechanism is provided on the rear side of the housing for driving the unidirectional parts; and a linkage mechanism is provided on the right side of the housing for pulling out the filter section and opening the sealing door simultaneously.

[0005] Furthermore, the one-way part includes multiple through holes provided on the sealing plate, a baffle is provided in each of the through holes, a flow groove is symmetrically provided on each of the baffles, an insert shaft is inserted laterally into each of the baffles, a sealing plug and a filter plate that can seal the through holes are respectively fixed at the front and rear ends of each insert shaft, an arc-shaped screen body is symmetrically fixed on each of the baffles, the arc-shaped screen body is provided in the flow groove, and a support frame is connected to the rear side of each insert shaft.

[0006] Furthermore, the mitigation section includes a grid mesh disposed on the front side of the second processing space, fixing strips symmetrically fixed on the right side of the grid mesh within the second processing space, and multiple arc-shaped baffles fixed at intervals between the symmetrically disposed fixing strips.

[0007] Furthermore, the stirring unit includes a motor fixed below the housing, a drive shaft fixedly connected to the output end of the motor and passing through the housing, and multiple spiral fan blades fixed at intervals on the drive shaft.

[0008] Furthermore, the filtering section includes slots symmetrically arranged within the first processing space, and hollow sleeve plates are movably inserted into each of the slots.

[0009] Furthermore, the drive mechanism includes push rod motors symmetrically fixed to the rear side of the housing, inclined blocks fixed at the output ends of each push rod motor, U-shaped frames fixed on both the upper and lower sides of the support frame, inclined surfaces fixed in the middle of each U-shaped frame, the inclined surfaces and inclined blocks fitting together, extension plates symmetrically fixed to the rear side of each U-shaped frame, and springs fixed between the extension plates and the housing.

[0010] Furthermore, the linkage mechanism includes a first connecting rod movably hinged to the left and right sides of each sealing plate, and multiple second connecting rods symmetrically hinged to the right side of the housing. The first and second connecting rods are movably hinged to each other. An extension rod extends outward and is fixed on each of the second connecting rods. A third connecting rod is movably hinged to each of the extension rods. A connecting shaft is fixed between any two corresponding third connecting rods on the left and right sides. Insert blocks are movably inserted into the outer wall of the housing on the upper and lower sides of the slot. The ends of the insert blocks are movably sleeved on the connecting shaft. A handle is fixedly connected to the right side of each hollow sleeve plate.

[0011] Preferably, a plurality of output ports are provided on the left side of the housing and connected to the first processing space.

[0012] Preferably, a sealing strip is fixed around the periphery of the through groove above the tank body, and a sealing surface that can seal and cover the sealing strip is provided below the sealing plate.

[0013] In summary, the advantages of this invention over the prior art are:

[0014] This invention provides a hydrogen purification device for improving hydrogen adsorption. During use, waste gas is transported through an inlet to a space between a sealing plate and a second processing space. A drive mechanism activates a unidirectional unit, causing the gas to flow unidirectionally into the second processing space. Upon arrival at the second processing space, liquid hydrogen sulfide is poured in, adsorbing and purifying the hydrogen from the waste gas. The purified hydrogen then passes through a stirring unit to accelerate the reaction in the liquid hydrogen sulfide while simultaneously flowing towards a slowing unit. This slowing unit mitigates fluctuations and losses in the liquid hydrogen sulfide within the second processing space, thus meeting the requirements for long-term purification. The hydrogen is then transported through a flow port on the front side of the partition to a first processing space. A filter unit within the first processing space filters and dries impurities in the hydrogen. Finally, the processed hydrogen is discharged through an outlet. When the filter unit needs replacement, a linkage mechanism pulls it out while simultaneously opening the sealing door, allowing the user to replace the filter unit. Compared to existing technologies, this method improves hydrogen purification efficiency and allows for easy filter unit replacement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional representation of the present invention.

[0016] Figure 2 This is a half-sectional schematic diagram of the present invention.

[0017] Figure 3 This is an exploded view of the present invention.

[0018] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of A-1.

[0019] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Partition; 3. First processing space; 4. Second processing space; 5. Flow port; 6. Sealing plate; 7. Gas inlet; 8. One-way section; 9. Slowing section; 10. Stirring section; 11. Filter section; 12. Slot; 13. Sealing door; 1000. Drive mechanism; 2000. Linkage mechanism; 81. Through hole; 82. Baffle; 83. Insert shaft; 84. Sealing plug; 85. Filter plate; 86. Arc-shaped screen; 87. Flow channel; 91. Grille; 92. Fixing 93. Arc-shaped baffle; 101. Motor; 102. Drive shaft; 103. Spiral fan blade; 111. Slot; 112. Hollow sleeve plate; 1001. Push rod motor; 1002. Inclined block; 1003. U-shaped frame; 1004. Inclined surface; 1005. Extension plate; 1006. Spring; 20001. First connecting rod; 2002. Second connecting rod; 2003. Extension rod; 2004. Third connecting rod; 2005. Connecting shaft; 2006. Insert block; 2007. Handle; 31. Output port. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1 to 4 The device for separating and purifying hydrogen from a mixed gas is characterized by comprising: a housing 1, wherein a partition 2 is horizontally fixed in the middle of the housing 1, and the housing 1 is divided vertically by the partition 2 to form a first processing space 3 and a second processing space 4 for placing a purified liquid; a flow port 5 is provided on the front side of the partition 2; a sealing plate 6 is vertically fixed in the second processing space 4; a gas inlet 7 is provided on the rear side of the housing 1 to communicate with the second processing space 4; and a plurality of unidirectional parts 8 are provided on the sealing plate 6 to allow gas to be input into the second processing space 4 in one direction. A buffer section 9 is provided on the front side of the processing space 4. A stirring section 10 is provided in the second processing space 4. A filtering section 11 is provided in the first processing space 3. A slot 12 that can communicate with the first processing space 3 is provided on the right side of the box body 1. A sealing door 13 is symmetrically and movably hinged in the middle of the slot 12. A drive mechanism 1000 that can drive the one-way section 8 to operate is provided on the rear side of the box body 1. A linkage mechanism 2000 that can drive the filtering section 11 to be pulled out and open the sealing door 13 at the same time is provided on the right side of the box body 1. Multiple output ports 31 are provided on the left side of the box body 1 and respectively connected to the first processing space 3.

[0022] The above-described hydrogen purification device for improving hydrogen adsorption involves conveying waste gas through the inlet 7 to the space between the sealing plate 6 and the second processing space 4. At this time, the drive mechanism 1000 drives the unidirectional unit 8 to unidirectionally convey the gas into the second processing space 4. When the waste gas enters the second processing space 4, liquid hydrogen sulfide is poured in. The liquid hydrogen sulfide adsorbs and purifies the hydrogen gas. The purified hydrogen gas then passes through the stirring unit 10 to accelerate the reaction rate in the liquid hydrogen sulfide, while simultaneously flowing into the slowing unit 9. The slowing unit 9 then facilitates the flow of hydrogen into the second processing space. The fluctuations and losses of the hydrogen sulfide liquid are minimized, thus meeting the needs of long-term reaction purification. At this time, hydrogen is transported to the first processing space 3 through the flow port 2 provided on the front side of the partition 2. The filter section in the first processing space 3 filters and dries the impurities in the hydrogen. Finally, the processed hydrogen is discharged through the output port 31. When it is necessary to replace the filter section 11, the filter section 11 is pulled out by the linkage mechanism 2000 and the sealing door 13 is opened at the same time. The user can replace the filter section 11 at this time. Compared with the existing technology, the efficiency of hydrogen purification can be improved, and the filter section can be replaced at the same time.

[0023] like Figure 4As shown, in some embodiments of the present invention, the one-way portion 8 includes a plurality of through holes 81 disposed on the sealing plate 6, a baffle 82 disposed in each of the through holes 81, a flow groove 87 symmetrically disposed on each of the baffles 82, an insert shaft 83 transversely inserted into each of the baffles 82, a sealing plug 84 and a filter plate 85 respectively fixed at the front and rear ends of each insert shaft 83 to seal the through holes 81, and an arc-shaped screen body 86 symmetrically fixed on each of the baffles 82, the arc-shaped screen body 86 being disposed in the flow groove 87, and in each of the through holes 81... A support frame 88 is connected to the rear side of the insertion shaft 83. After the exhaust gas enters between the sealing plate 6 and the second processing space 4, the support frame 88 is moved by the drive mechanism 1000. At this time, the support frame 88 drives each insertion shaft 83 to move along the baffle 82. When the exhaust gas passes through the filter plate 85, the impurities in the exhaust gas can be initially filtered. When the insertion shaft 83 moves, the sealing plug 84 and the through hole 81 separate. At the same time, the arc-shaped screen body 86 inserted in the flow groove 87 separates from the flow groove 87. The filtered impurities flow into the second processing space 4 through the flow groove 87 and the through hole 81.

[0024] like Figure 3 As shown, in some embodiments of the present invention, the mitigation section 9 includes a grid 91 disposed on the front side of the second processing space 4, and fixing strips 92 symmetrically fixed on the right side of the grid 91 within the second processing space 4. Multiple arc-shaped baffles 93 are fixed at intervals between the symmetrically disposed fixing strips 92. The grid 91 initially slows down the flow of liquid, and then the multiple arc-shaped baffles 93 fixed at intervals between the fixing strips 92 reduce the fluctuation of liquid.

[0025] like Figure 2 and 3 As shown, in some embodiments of the present invention, the stirring unit 10 includes a motor 101 fixed below the housing 1. A drive shaft 102 is fixedly connected to the output end of the motor 101 and passes through the housing 1. A plurality of spiral fan blades 103 are fixedly fixed at intervals on the drive shaft 102. The motor 101 is driven by a power source, so that the output end of the motor 101 drives the drive shaft 102 to rotate. When the drive shaft 102 rotates, the plurality of spiral fan blades 103 fixedly fixed on it rotate. The spiral fan blades 103 agitate the liquid in the first processing space and accelerate the reaction efficiency of the waste gas.

[0026] like Figure 3 As shown, in some embodiments of the present invention, the filter section 11 includes slots 111 symmetrically arranged in the first processing space 3, and hollow sleeve plates 112 are movably inserted into each of the slots 111, so as to filter the purified hydrogen impurities through the hollow sleeve plates 112 movably inserted into the slots 111.

[0027] like Figure 3As shown, in some embodiments of the present invention, in order to realize the operation of the drive unidirectional part 8, the drive mechanism 1000 includes push rod motors 1001 symmetrically fixed to the rear side of the housing 1, inclined blocks 1002 fixed at the output end of each push rod motor 1001, U-shaped frames 1003 fixed on both the upper and lower sides of the support frame 88, inclined surfaces 1004 fixed in the middle of each U-shaped frame 1003, the inclined surfaces 1004 and the inclined blocks 1002 fitting together, extension plates 1005 symmetrically fixed to the rear side of each U-shaped frame 1003, and springs 1006 fixed between the extension plates 1005 and the housing 1.

[0028] When a hydrogen purification device for improving hydrogen adsorption using the above structure is in operation, the push rod motor 1001 drives the inclined block 1002 to move downward. At this time, the inclined position on the inclined block 1002 contacts the inclined surface 1004, causing the inclined surface 1004 to drive the U-shaped frame 1003 to move along the box 1 towards the sealing plate 6. The U-shaped frame 1003 then drives the support frame 88 to move.

[0029] like Figure 2 and 3 As shown, in some embodiments of the present invention, in order to pull out the filter section 11 and open the sealing door 13 at the same time, the linkage mechanism 2000 includes a first connecting rod 2001 that is movably hinged to the left and right sides of each sealing plate 6, and a plurality of second connecting rods 2002 that are symmetrically hinged to the right side of the housing 1. The first connecting rod 2001 and the second connecting rod 2002 are movably hinged to each other. An extension rod 2003 is fixedly extended outward from each of the second connecting rods 2002. A third connecting rod 2004 is movably hinged to each of the extension rods 2003. A connecting shaft 2005 is fixed between any two corresponding third connecting rods 2004 on the left and right. Insert blocks 2006 are movably inserted into the outer wall of the housing 1 on the upper and lower sides of the slot 12. The ends of the insert blocks 2006 are movably sleeved on the connecting shaft 2005. A handle 2007 is fixedly connected to the right side of each hollow sleeve plate 112.

[0030] When a hydrogen purification device for improving hydrogen adsorption using the above structure is in operation, the user pulls the handle 2007, causing the hollow sleeve plate 112 to move along the slot 111. At this time, the hollow sleeve plate 112 contacts the sealing door 13, and the sealing door 13 opens accordingly. The sealing door 13 then drives the first connecting rod 2001 to swing, and at the same time, the first connecting rod 2001 drives the second connecting rod 2002 to swing. At this time, the extension rod 2003 on the second connecting rod 2002 drives the third connecting rod 2004 to swing. When the third connecting rod 2004 swings, it drives the insertion block 2006 to move upward through the connecting shaft 2005, and the insertion block 2006 separates from the hollow sleeve plate 112.

[0031] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for separating and purifying hydrogen in a mixed gas, characterized in that, include: A box body (1) has a partition (2) fixed horizontally in the middle of the box body (1). The partition (2) divides the box body (1) into a first processing space (3) and a second processing space (4) for placing purified liquid. A flow port (5) is provided on the front side of the partition (2). A sealing plate (6) is fixed vertically in the second processing space (4). A gas inlet (7) that can communicate with the second processing space (4) is provided on the rear side of the box body (1). Multiple one-way parts (8) that can input gas into the second processing space (4) are provided on the sealing plate (6). The front of the processing space (4) is provided with a slowing part (9), the second processing space (4) is provided with a stirring part (10), the first processing space (3) is provided with a filtering part (11), the right side of the box body (1) is provided with a slot (12) that can communicate with the first processing space (3), a sealing door (13) is symmetrically hinged in the middle of the slot (12), the rear side of the box body (1) is provided with a drive mechanism (1000) that can drive the one-way part (8) to operate, and the right side of the box body (1) is provided with a linkage mechanism (2000) that can drive the filtering part (11) to be pulled out and open the sealing door (13) at the same time. The deceleration section (9) includes a grid (91) disposed on the front side of the second processing space (4). A fixing strip (92) is symmetrically fixed to the right side of the grid (91) within the second processing space (4). Multiple arc-shaped baffles (93) are fixed at intervals between the symmetrically disposed fixing strips (92). The stirring section (10) includes a motor (101) fixed below the housing (1). A drive shaft (102) is fixedly connected to the output end of the motor (101) and passes through the housing (1). Multiple spiral fan blades (103) are fixed at intervals on the drive shaft (102). Multiple outputs are provided on the left side of the housing (1) and respectively connected to the first processing space (3). The unidirectional part (8) includes multiple through holes (81) provided on the sealing plate (6), a baffle (82) is provided in each of the through holes (81), a flow groove (87) is symmetrically provided on each of the baffles (82), a shaft (83) is inserted laterally on each of the baffles (82), a sealing plug (84) and a filter plate (85) that can seal the through holes (81) are fixed at the front and rear ends of each shaft (83), an arc-shaped screen body (86) is symmetrically fixed on each of the baffles (82), the arc-shaped screen body (86) is provided in the flow groove (87), and a support frame (88) is connected to the rear side of each shaft (83).

2. The hydrogen separation and purification equipment in a mixed gas according to claim 1, characterized in that... The filter section (11) includes slots (111) symmetrically arranged in the first processing space (3), and hollow sleeve plates (112) are movably inserted into each of the slots (111).

3. The hydrogen separation and purification equipment in a mixed gas according to claim 1, characterized in that... The drive mechanism (1000) includes push rod motors (1001) symmetrically fixed to the rear side of the housing (1), with inclined blocks (1002) fixed at the output end of each push rod motor (1001), and U-shaped frames (1003) fixed on both the upper and lower sides of the support frame (88). An inclined surface (1004) is fixed in the middle of each U-shaped frame (1003), and the inclined surface (1004) and the inclined block (1002) are in contact. An extension plate (1005) is symmetrically fixed to the rear side of each U-shaped frame (1003), and a spring (1006) is fixed between the extension plate (1005) and the housing (1).

4. The hydrogen separation and purification equipment in a mixed gas according to claim 2, characterized in that... The linkage mechanism (2000) includes a first link (2001) hinged to the left and right sides of each sealing plate (6), and a plurality of second links (2002) hinged symmetrically to the right side of the housing (1). The first link (2001) and the second link (2002) are hinged to each other. An extension rod (2003) is fixedly extended outward on each of the second links (2002). A third link (2004) is hinged to each of the extension rods (2003). A connecting shaft (2005) is fixed between any two corresponding third links (2004) on the left and right. Inserts (2006) are movably inserted into the outer wall of the housing (1) on the upper and lower sides of the slot (12). The end of the insert (2006) is movably sleeved on the connecting shaft (2005). A handle (2007) is fixedly connected to the right side of each hollow sleeve plate (112).