Separation structure for hydrogen production device

Abstract

The utility model discloses a separation structure for a hydrogen production device, which belongs to the technical field of hydrogen production separation and comprises a separation component, a pair of mutually symmetrical pressurizing components is arranged at the upper end of the separation component, and the separation component comprises a bottom plate. According to the technical scheme, all parts of the separation assembly are matched with one another, films made of ceramic and the like are utilized, a plurality of tiny holes or channels are formed in the films, and hydrogen can easily pass through the films due to the sizes and chemical properties of the tiny holes or channels; other gas molecules are difficult to pass due to factors such as large size or interaction between the other gas molecules and membrane materials, gas can be continuously pressurized at the upper end of the ceramic membrane, raw material gas including hydrogen and other impurity gas is in contact with the surface of the membrane under driving of pressure, the hydrogen preferentially permeates the membrane and is enriched on one side of the membrane to obtain hydrogen with high purity, and the hydrogen is separated from the membrane. And the impurity gas is intercepted on the other side of the membrane, so that the separation of the hydrogen and the impurity gas is realized.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production separation technology, and more specifically, to a separation structure for hydrogen production devices. Background Technology

[0002] In hydrogen production units, various separation structures are primarily used to separate hydrogen from other impurities in reaction products or feed gases to obtain high-purity hydrogen. These structures typically consist of multiple adsorption towers connected in parallel, forming the core component of pressure swing adsorption (PSA). The towers are filled with adsorbents such as activated carbon and molecular sieves. During operation, the feed gas sequentially enters each adsorption tower, where adsorption and separation occur. Different towers operate at different stages, such as adsorption, pressure equalization, depressurization desorption, rinsing, and pressurization. The opening and closing of valves are controlled by a program to ensure the continuous production of hydrogen through the cyclical operation of each adsorption tower.

[0003] However, to achieve separation by utilizing the differences in adsorption capacity of adsorbents such as activated carbon for different components in gases or liquids, unbalanced and unsaturated molecular attraction or chemical bonding forces exist on the surface of the adsorbent. When a gas or liquid comes into contact with the adsorbent, easily adsorbed components are adsorbed and concentrated on its surface, thus separating from other less easily adsorbed components. For example, in treating organic waste gas, the activated carbon in an activated carbon adsorption tower can adsorb organic molecules in the waste gas. The adsorption tower has a relatively simple structure, mainly composed of the tower body, the packing layer, the adsorbent filling area, the inlet, and the outlet. During operation, the adsorbent needs to be replaced or regenerated regularly to ensure the adsorption effect. When the adsorbent becomes saturated, the equipment needs to be stopped for adsorbent treatment, which leads to intermittent operation of the equipment.

[0004] Therefore, a separation structure for hydrogen production devices is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a separation structure for a hydrogen production device. Through the cooperation between the various parts of the separation component, a thin film made of ceramic or the like is used. These films have many tiny pores or channels. Their size and chemical properties allow hydrogen to pass through relatively easily, while other gas molecules are more difficult to pass through due to their larger size or the interaction between them and the film material.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A separation structure for a hydrogen production device includes a separation component, the upper end of which is provided with a pair of mutually symmetrical pressurization components;

[0008] The separation assembly includes a base plate, with multiple support rods fixedly connected to the upper end of the base plate. A base is fixedly connected to the upper end of the multiple support rods, and a main shell is fixedly connected to the upper end of the base. A ceramic membrane is fixedly connected inside the main shell, and a sealing rubber plug is slidably connected inside the main shell. A connecting pipe is fixedly connected to the middle of the sealing rubber plug, and the connecting pipe communicates with the interior of the main shell. Two pairs of connecting rods are fixedly connected to the middle of the connecting pipe, and a one-way valve is installed at the upper end of the connecting pipe.

[0009] Furthermore, a pair of sliding rods are fixedly connected to the upper end of the base plate, and a pair of pressure-boosting springs are fixedly connected to the upper end of the base plate. The pair of sliding rods are slidably connected to a pair of connecting rods respectively, and the upper ends of the pair of pressure-boosting springs are fixedly connected to the lower ends of another pair of connecting rods respectively.

[0010] Furthermore, an air inlet hose is installed at the upper end of the one-way valve, and an air outlet hose is connected to the lower end of the base.

[0011] Furthermore, the pressurizing assembly includes a pair of fixed housings fixedly connected to the upper ends of a pair of sliding rods. A servo motor is fixedly connected inside the fixed housing, and a worm gear is fixedly connected to the output end of the servo motor. A rotating shaft is rotatably connected inside the fixed housing, and a gear and a worm wheel are fixedly connected to the middle of the rotating shaft. A rack is slidably connected inside the fixed housing, and a push block is fixedly connected to the lower end of the rack.

[0012] Furthermore, the rack is meshed with the gear, and the worm gear is meshed with the worm.

[0013] Furthermore, the interior of the fixed housing is provided with a strip-shaped sliding hole that slides in conjunction with a rack and pinion.

[0014] In summary, this utility model has the following beneficial effects:

[0015] (1) This solution separates the components of the separation assembly by using thin films made of ceramics, etc. These films have many tiny pores or channels. Their size and chemical properties allow hydrogen to pass through relatively easily, while other gas molecules are more difficult to pass through due to their larger size or the interaction between them and the film material. By continuously pressurizing the gas at the top of the ceramic film, the raw gas containing hydrogen and other impurity gases comes into contact with the film surface under pressure. Hydrogen will preferentially permeate through the film and be enriched on one side of the film to obtain hydrogen with higher purity, while the impurity gases are trapped on the other side of the film, thereby achieving the separation of hydrogen and impurity gases.

[0016] (2) This scheme can buffer the gas injection when it is too fast by setting a pair of pressure springs, and at the same time, it can increase stability by limiting the position with a pair of sliding rods.

[0017] (3) This scheme uses the cooperation between the various parts of the pressurizing component to drive the rack to move the push block downward, pressurize the connecting rod, and apply external pressure to the connecting rod. When too much gas is injected, it can be forcibly separated, further improving the separation effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0019] Figure 2 This is a schematic diagram of the main body split structure in this embodiment;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the main body shell in this embodiment;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed outer shell in this embodiment.

[0022] In the diagram: 1. Separation assembly; 2. Pressurization assembly; 101. Base plate; 102. Support rod; 103. Base; 104. Main body shell; 105. Ceramic membrane; 106. Sealing rubber plug; 107. Connecting pipe; 108. Connecting rod; 109. One-way valve; 110. Sliding rod; 111. Pressure boosting spring; 112. Air outlet hose; 113. Air inlet hose; 201. Fixed shell; 202. Servo motor; 203. Worm gear; 204. Rotating shaft; 205. Gear; 206. Worm wheel; 207. Rack; 208. Push block. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0025] Reference Figures 1-4 As shown, this is a separation structure for a hydrogen production device in a preferred embodiment of the present invention, including a separation component 1, and a pair of mutually symmetrical pressurizing components 2 provided at the upper end of the separation component 1.

[0026] The separation assembly 1 includes a base plate 101. Multiple support rods 102 are fixedly connected to the upper end of the base plate 101. A base 103 is fixedly connected to the upper end of the multiple support rods 102. A main body shell 104 is fixedly connected to the upper end of the base 103. A ceramic membrane 105 is fixedly connected inside the main body shell 104. A sealing rubber plug 106 is slidably connected inside the main body shell 104. A connecting pipe 107 is fixedly connected to the middle of the sealing rubber plug 106, and the connecting pipe 107 communicates with the inside of the main body shell 104. Two pairs of connecting rods 108 are fixedly connected to the middle of the connecting pipe 107. A one-way valve 109 is installed at the upper end of the connecting pipe 107.

[0027] Reference Figures 1-3 As shown, a pair of sliding rods 110 are fixedly connected to the upper end of the base plate 101, and a pair of pressure springs 111 are fixedly connected to the upper end of the base plate 101. The pair of sliding rods 110 are slidably connected to a pair of connecting rods 108 respectively, and the upper ends of the pair of pressure springs 111 are fixedly connected to the lower ends of another pair of connecting rods 108 respectively.

[0028] Reference Figures 1-3 As shown, an air inlet hose 113 is installed at the upper end of the one-way valve 109, and an air outlet hose 112 is connected to the lower end of the base 103.

[0029] Reference Figures 2-4 As shown, the pressurizing assembly 2 includes a pair of fixed housings 201 fixedly connected to the upper ends of a pair of sliding rods 110. A servo motor 202 is fixedly connected inside the fixed housing 201. A worm gear 203 is fixedly connected to the output end of the servo motor 202. A rotating shaft 204 is rotatably connected inside the fixed housing 201. A gear 205 and a worm wheel 206 are fixedly connected to the middle of the rotating shaft 204. A rack 207 is slidably connected inside the fixed housing 201. A push block 208 is fixedly connected to the lower end of the rack 207.

[0030] Reference Figure 4 As shown, rack 207 is meshed with gear 205, and worm gear 206 is meshed with worm 203.

[0031] Reference Figure 4 As shown, the interior of the fixed housing 201 has a strip-shaped sliding hole that slides in conjunction with the rack 207.

[0032] Specific implementation process: It consists of a separation component 1 and a pressurization component 2. The separation component 1 includes a base plate 101, on which multiple support rods 102 are fixed to support a base 103. The upper end of the base 103 is connected to a main shell 104. A ceramic membrane 105 is installed inside the main shell 104 for separating hydrogen and other impurity gases. A sealing rubber plug 106 is slidably connected inside the main shell 104. A connecting pipe 107 in the middle of the sealing rubber plug 106 is connected to the inside of the main shell 104. There are two pairs of connecting rods 108 in the middle of the connecting pipe 107, and a one-way valve 109 is installed at the upper end. The upper end of the one-way valve 109 is connected to an inlet hose 113 for inputting hydrogen-containing raw material gas. The lower end of the base 103 is connected to an outlet hose 112 for outputting the separated high-purity gas. The pressurization assembly 2 includes a pair of sliding rods 110 and a pair of pressure springs 111 fixed on the base plate 101. The sliding rods 110 are slidably connected to the connecting rods 108. The upper end of the pressure springs 111 is fixedly connected to the lower end of the other pair of connecting rods 108, serving as a buffer and limiting function. The pressurization assembly 2 includes a pair of fixed housings 201 fixed to the upper end of the sliding rods 110. The fixed housings 201 contain a servo motor 202, the output end of which is connected to a worm gear 203. A rotating shaft 204 is rotatably connected inside the fixed housings 201. A gear 205 and a worm wheel 206 are fixed in the middle of the rotating shaft 204. A rack 207 is slidably connected inside the fixed housings 201. The rack 207 meshes with the gear 205 and a push block 208 is fixed at its lower end. The worm wheel 206 meshes with the worm gear 203. The housing 201 is connected to the main body 104. A sliding slot is provided inside the housing 201 to slide in conjunction with a rack 207. Hydrogen-containing raw material gas enters the connecting pipe 107 through the inlet hose 113. Due to the one-way valve 109, the gas can only flow into the main housing 104 in one direction. The ceramic membrane separates the raw material gas, which contains hydrogen and other impurities. Under pressure, the raw material gas contacts the surface of the ceramic membrane 105. The ceramic membrane has many tiny pores or channels; their size and chemical properties allow hydrogen to pass through relatively easily, while other gas molecules, due to their larger size or interactions with the membrane material, have difficulty passing through. Hydrogen preferentially permeates through the ceramic membrane 105, accumulating on one side of the membrane to obtain high-purity hydrogen, while impurities are trapped on the other side of the membrane, thus achieving… Hydrogen is separated from impurity gases. The separated high-purity hydrogen is output through the outlet hose 112 at the lower end of the base 103 for subsequent use. Pressure regulation and buffering are also implemented. When gas injection is too rapid, the sealing rubber plug 106 moves upward within the main housing 104, causing the connecting rod 108 to slide on the sliding rod 110. At this time, the pressure spring 111 is compressed, providing a buffering effect. Simultaneously, the sliding rod 110 limits the connecting rod 108, increasing the stability of the entire device. When too much gas is injected, the pressurization component 2 is activated, and the servo motor 202 operates, driving the worm gear 203 to rotate. The worm gear 203 meshes with the worm wheel 206, causing the worm wheel 206 to rotate, which in turn drives the rotating shaft 204 to rotate. The gear 205 on the rotating shaft 204 rotates accordingly.Gear 205 meshes with rack 207, driving rack 207 to slide downwards in the strip-shaped sliding hole within the fixed housing 201. The pushing block 208 at the lower end of rack 207 moves downwards, applying external pressure to connecting rod 108. This forced pressurization accelerates the gas flow through ceramic membrane 105, further improving the separation effect and ensuring efficient hydrogen separation even with excessive gas injection.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A separation structure for a hydrogen production device, comprising a separation component (1), characterized in that: The upper end of the separation component (1) is provided with a pair of mutually symmetrical pressurizing components (2); The separation component (1) includes a base plate (101), with multiple support rods (102) fixedly connected to the upper end of the base plate (101). A base (103) is fixedly connected to the upper end of the multiple support rods (102). A main body shell (104) is fixedly connected to the upper end of the base (103). A ceramic membrane (105) is fixedly connected inside the main body shell (104). A sealing rubber plug (106) is slidably connected inside the main body shell (104). A connecting pipe (107) is fixedly connected to the middle of the sealing rubber plug (106), and the connecting pipe (107) is connected to the inside of the main body shell (104). Two pairs of connecting rods (108) are fixedly connected to the middle of the connecting pipe (107). A one-way valve (109) is installed at the upper end of the connecting pipe (107).

2. The separation structure for a hydrogen production device according to claim 1, characterized in that: A pair of sliding rods (110) are fixedly connected to the upper end of the base plate (101), and a pair of pressure springs (111) are fixedly connected to the upper end of the base plate (101). The pair of sliding rods (110) are slidably connected to a pair of connecting rods (108) respectively, and the upper ends of the pair of pressure springs (111) are fixedly connected to the lower ends of another pair of connecting rods (108) respectively.

3. The separation structure for a hydrogen production device according to claim 1, characterized in that: An air inlet hose (113) is installed at the upper end of the one-way valve (109), and an air outlet hose (112) is connected to the lower end of the base (103).

4. The separation structure for a hydrogen production device according to claim 1, characterized in that: The pressurizing assembly (2) includes a pair of fixed housings (201) fixedly connected to the upper ends of a pair of sliding rods (110). A servo motor (202) is fixedly connected inside the fixed housing (201). A worm gear (203) is fixedly connected to the output end of the servo motor (202). A rotating shaft (204) is rotatably connected inside the fixed housing (201). A gear (205) and a worm wheel (206) are fixedly connected to the middle of the rotating shaft (204). A rack (207) is slidably connected inside the fixed housing (201). A push block (208) is fixedly connected to the lower end of the rack (207).

5. A separation structure for a hydrogen production device according to claim 4, characterized in that: The rack (207) is meshed with the gear (205), and the worm wheel (206) is meshed with the worm (203).

6. A separation structure for a hydrogen production device according to claim 4, characterized in that: The fixed outer shell (201) has a strip-shaped sliding hole inside that is slidably connected to the rack (207).

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