A membrane separation device for hydrogen recovery

Abstract

The utility model belongs to hydrogen recovery technical field, concretely relates to a film separation device for hydrogen recovery, including the separation machine body, the bottom surface of separation machine body is connected to the top of bottom support, and the surface of one side of bottom support is connected the sliding block, and the surface of sliding block is connected in the surface of slide rod, and the surface of slide rod is connected in the one side of the slide groove of base, and the surface of the other side top of base is installed motor, and the surface of axle end of motor bottom is connected screw rod, and the surface of screw rod bottom is connected in the bearing of the inner wall of base, and the surface of base is connected the threaded block of sliding, and the surface of threaded block is connected in the surface of screw rod. The utility model, through the bottom support of the bottom of separation machine body is connected in the inside of base and slides up and down, thereby adjusting the overall height of separation machine body, and then the interface height of other equipment of upstream and downstream of separation machine body is adjusted according to the need, avoids increasing the security and fluency of gas transmission of additional elbow and pipe fitting.

Description

Technical Field

[0001] This utility model belongs to the field of hydrogen recovery technology, specifically relating to a membrane separation device for hydrogen recovery. Background Technology

[0002] Hydrogen recovery membranes are thin films made of polymer or inorganic materials with selective separation capabilities, primarily used for the efficient separation and recovery of hydrogen from mixed gases. Their core principle is to utilize the differences in permeation rates of different gas molecules within the membrane material (e.g., hydrogen molecules are small and diffuse quickly) to achieve the separation and enrichment of hydrogen from other gases (such as nitrogen, methane, and carbon monoxide). These membrane materials need to possess high hydrogen permeability, good chemical stability, and mechanical strength. Common types include organic polymer membranes (such as polyimide membranes) and inorganic membranes (such as ceramic membranes and palladium membranes), and are widely used in tail gas treatment and resource recycling in petrochemical, metallurgical, and hydrogen energy production fields. Hydrogen recovery membrane separation unit is a special equipment developed based on membrane separation technology. It recovers hydrogen from industrial waste gas (such as synthetic ammonia off-gas and petrochemical tail gas), improves the utilization rate of hydrogen resources, and reduces dependence on fresh hydrogen and external purchase costs. Existing membrane separation units for hydrogen recovery have a fixed height, requiring docking with other upstream and downstream equipment. However, due to differences in models, specifications, and installation conditions, the interface heights of other equipment vary, making it difficult for the fixed-height membrane separation unit to be directly adapted. This results in impeded gas flow, the need for additional bends and fittings, increased resistance, and a higher risk of leakage. Furthermore, when the installation site has poor ground flatness, the fixed-height membrane separation unit cannot adjust its level automatically, which may lead to problems such as tilting of internal pipes and uneven stress on membrane modules. This affects the normal flow and separation effect of gas within the unit and may also accelerate the wear and damage of equipment components. Utility Model Content

[0003] The purpose of this invention is to provide a membrane separation device for hydrogen recovery, aiming to solve the problem that existing membrane separation devices for hydrogen recovery have a fixed height. These devices require connection to other upstream and downstream equipment, but the interface heights of these other devices vary due to factors such as model, specifications, and installation conditions. The fixed-height membrane separation device is difficult to directly adapt, making it impossible to achieve ideal pipeline connections. This leads to poor gas delivery, the need for additional bends and fittings, increased resistance and leakage risks, and difficulty in self-adjusting the level of the device when the installation site has poor ground flatness. This can cause problems such as tilting of internal pipelines and uneven stress on the membrane modules, affecting the normal flow and separation effect of gas within the device, and potentially accelerating wear and damage to equipment components.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a membrane separation device for hydrogen recovery, comprising a separator body, the bottom surface of which is sleeved on the top of a base, a slider connected to one side surface of the base, the slider surface slidably connected to a slide rod surface, the slide rod surface connected to a slide groove on one side of the base, a motor mounted on the top surface of the other side of the base, a lead screw connected to the bottom shaft end surface of the motor, the bottom surface of the lead screw sleeved in a bearing provided on the inner wall of the base, a threaded block slidably connected to the base surface, the threaded block surface threadedly connected to the lead screw surface, the other side surface of the threaded block connected to the side of the base away from the slider, a fixing block connected to the top surface of the horizontal end of the base, a screw threadedly connected to the inner wall of the fixing block, a rotating groove formed at the bottom of the screw, the rotating groove surface rotatably sleeved on the ball end surface of the support foot.

[0005] In a preferred embodiment of the membrane separation device for hydrogen recovery according to this utility model, the base, slider, slide rod and base form a sliding connection structure.

[0006] As a preferred embodiment of the membrane separation device for hydrogen recovery according to this utility model, two sets of sliding grooves are respectively opened longitudinally on the inner wall surface of the longitudinal end of the base, and the shape and size of the sliding grooves are adapted to the slider and the threaded block respectively.

[0007] As a preferred embodiment of the membrane separation device for hydrogen recovery according to this utility model, a rectangular groove is provided on the top of the base, and the shape and size of the groove are adapted to the lower end of the separator body.

[0008] As a preferred embodiment of the membrane separation device for hydrogen recovery according to this utility model, the four sets of fixing blocks are respectively located on the top four corner surfaces of the horizontal end of the base, and the inner wall of the base is longitudinally provided with threaded through grooves, and the shape and size of the through grooves are adapted to the screw.

[0009] In a preferred embodiment of the membrane separation device for hydrogen recovery according to this utility model, the rotating groove is a spherical groove, and the shape and size of the groove are adapted to the top sphere of the support foot.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The overall height of the separator body can be adjusted by sliding the base inside the base through the bottom support fitted at the bottom of the separator body. This allows the height of the separator body to be adjusted according to the interface height of other upstream and downstream equipment that need to be connected, avoiding the need for additional bends and pipes that could affect the safety and smoothness of gas transmission. By utilizing the four sets of fixing blocks and screws installed at the four corners of the base, the height of the support feet at the corresponding positions can be adjusted according to the actual situation when the site where the separator body needs to be installed is uneven, thereby ensuring that the equipment remains level and preventing the internal pipes from tilting and affecting the gas separation effect. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of the main cross-section of this utility model; Figure 3 This is a top view cross-sectional structural diagram of the base portion of this utility model; Figure 4 This is a cross-sectional exploded view of the base portion of this utility model.

[0012] In the diagram: 1. Separator body; 2. Base support; 3. Slider; 4. Slide rod; 5. Base; 6. Motor; 7. Lead screw; 8. Threaded block; 9. Fixing block; 10. Screw; 11. Rotating groove; 12. Support foot. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-4 This utility model provides the following technical solution: a membrane separation device for hydrogen recovery, comprising a separator body 1, the bottom surface of the separator body 1 being sleeved on the top of a base 2, a slider 3 being connected to one side surface of the base 2, the surface of the slider 3 being slidably connected to the surface of a slide rod 4, the surface of the slide rod 4 being connected to a slide groove on one side of a base 5, a motor 6 being mounted on the top surface of the other side of the base 5, a lead screw 7 being connected to the bottom shaft end surface of the motor 6, the bottom surface of the lead screw 7 being sleeved in a bearing provided on the inner wall of the base 5, a threaded block 8 being slidably connected to the surface of the base 5, and the surface of the threaded block 8 being threadedly connected to the surface of the lead screw 7. The other side of block 8 is connected to the side of the base 2 away from the slider 3. The top surface of the horizontal end of the base 5 is connected to the fixing block 9. The inner wall of the fixing block 9 is threaded to the screw 10. The bottom of the screw 10 has a rotating groove 11. The surface of the rotating groove 11 is rotatably sleeved to the ball surface of the top end of the support foot 12. In this design, the separator body 1 constitutes the main body of the small organic hollow membrane experimental machine. A large number of related components are set in the main body of the small organic hollow membrane experimental machine. Since they are existing technologies and the core content of this technical solution is irrelevant to them, they will not be described in detail in this technical solution. The main model of the small-scale organic hollow membrane experimental machine in this solution is: BONA-GM-20-2.

[0015] In operation: Based on the difference in permeation rates of different gas molecules in the hollow fiber membrane material, the hydrogen-containing mixed gas to be treated enters the equipment under pressure. Due to their small size and strong diffusion ability, hydrogen molecules preferentially permeate through the membrane wall into the inner side (permeate side), while larger gas molecules such as nitrogen and methane are retained on the outer side (retention side), thus achieving the separation and recovery of hydrogen from other gases. The equipment can optimize membrane separation efficiency by adjusting parameters such as inlet pressure and flow rate.

[0016] In practical use, a holding brake can be installed on the motor 6 and lead screw 7 of this scheme. When the motor 6 is running, the holding brake is energized and released, without affecting the transmission of the lead screw 7. When the motor 6 is turned off, the holding brake is de-energized and relies on the spring force to hold the motor 6 shaft, preventing the lead screw 7 from rotating, thereby fixing the height of the threaded block 8.

[0017] Preferably, the base 2, slider 3, slide bar 4 and base 5 form a sliding connection structure.

[0018] In actual use, the motor 6 is started so that the lead screw 7 connected to its bottom rotates in the bearing provided on the inner wall of the base 5, thereby driving the threaded block 8 connected by the thread to move upward on the base 5. At the same time, the bottom support 2 connected to the other side of the threaded block 8 slides upward on the slide rod 4 under the support of the slider 3, so that the bottom support 2 can move upward stably.

[0019] Preferably, two sets of sliding grooves are longitudinally opened on the inner wall surface of the longitudinal end of the base 5, and the shape and size of the sliding grooves are adapted to the slider 3 and the threaded block 8 respectively.

[0020] In practical use, the two sliding grooves opened at the longitudinal end of the base 5 allow the slider 3 and the threaded block 8 to move vertically on the base 5 to adjust their height.

[0021] Preferably, a rectangular groove is provided on the top of the base 2, and the shape and size of the groove are adapted to the lower end of the separator body 1.

[0022] In practical use, the groove on the top of the base 2 is used to easily fit and place the separator body 1, so that the separator body 1 can be moved stably when the base 2 is moved.

[0023] Preferably, four sets of fixing blocks 9 are located on the top four corner surfaces of the horizontal end of the base 5, and the inner wall of the base 5 is longitudinally threaded through grooves, the shape and size of which are adapted to the screw 10.

[0024] In practical use, when installed in areas with uneven ground, the position of the adjusting screw 10 on the fixing block 9 can be adjusted according to the ground height, thereby adjusting the height of the support foot 12 at the corresponding position. At the same time, according to the flatness of the ground, the support foot 12 can rotate in the rotating groove 11 using the ball at its top, so that the support foot 12 can adjust the angle and support the ground according to the ground conditions.

[0025] Preferably, the rotating groove 11 is a spherical groove, and the shape and size of the groove are adapted to the top sphere of the support foot 12.

[0026] In practical use, the spherical structure at the top of the support foot 12 rotates within the rotating groove 11, thereby adjusting the support angle of the support foot 12 according to the flatness or depression of the ground, so that the separator body 1 can be stably and smoothly supported.

[0027] Working principle: When using the separator body 1 to recover and separate hydrogen, the base 2 supports and fixes the separator body 1 on the base 5. Then, the separator body 1 and base 5 are transported to a safe environment. If installed on an uneven ground, the position of the adjusting screw 10 on the fixing block 9 is adjusted according to the ground height, thereby adjusting the height of the support leg 12 at the corresponding position. Simultaneously, the support leg 12 can rotate within the rotating groove 11 using the ball at its top, allowing the support leg 12 to adjust its angle and support the ground according to the ground conditions. After placing the base 5 and adjusting the height of the support leg 12 according to the ground conditions, interfaces for other upstream and downstream equipment connected to the separator body 1 can be added as needed. The height of the separator body 1 is adjusted to facilitate compatibility with connected equipment and avoid affecting the smooth flow of gas. When it is necessary to raise the height of the separator body 1, the motor 6 can be started to rotate the lead screw 7 connected to its bottom in the bearing provided on the inner wall of the base 5, thereby driving the threaded block 8 connected by threads to move upward on the base 5. At the same time, the bottom support 2 connected to the other side of the threaded block 8 slides upward on the slide rod 4 under the support of the slider 3, so that the bottom support 2 can move upward stably, thereby adjusting the height of the separator body 1 to match the height of the connection interface of the upstream and downstream equipment to be connected. After adjusting to the appropriate height, the motor 6 is turned off to stop its rotation, so that the threaded block 8 is maintained at the current height, thus fixing the height of the separator body 1.

[0028] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A membrane separation device for hydrogen recovery, comprising a separator body (1), characterized in that: The bottom surface of the separator body (1) is fitted onto the top of the base (2). A slider (3) is connected to one side of the base (2). The slider (3) is slidably connected to the surface of the slide rod (4). The slide rod (4) is connected to the slide groove on one side of the base (5). A motor (6) is installed on the top surface of the other side of the base (5). A lead screw (7) is connected to the bottom shaft end surface of the motor (6). The bottom surface of the lead screw (7) is fitted into the bearing provided on the inner wall of the base (5). A threaded block (8) is slidably connected to the surface of the base (5). The threaded block (8) is threadedly connected to the surface of the lead screw (7). The other side of the threaded block (8) is connected to the side of the base (2) away from the slider (3). A fixing block (9) is connected to the top surface of the horizontal end of the base (5). A screw (10) is threadedly connected to the inner wall of the fixing block (9). A rotating groove (11) is opened at the bottom of the screw (10). The rotating groove (11) is rotatably fitted onto the ball surface at the top of the support foot (12).

2. The membrane separation device for hydrogen recovery according to claim 1, characterized in that: The base (2), slider (3), slide bar (4) and base (5) form a sliding connection structure.

3. The membrane separation device for hydrogen recovery according to claim 2, characterized in that: The inner wall surface of the longitudinal end of the base (5) has two sets of sliding grooves, and the shape and size of the sliding grooves are adapted to the slider (3) and the threaded block (8).

4. The membrane separation device for hydrogen recovery according to claim 1, characterized in that: The bottom support (2) has a rectangular groove on its top, and the shape and size of the groove are adapted to the lower end of the separator body (1).

5. A membrane separation device for hydrogen recovery according to claim 1, characterized in that: The four sets of fixing blocks (9) are located on the top four corner surfaces of the horizontal end of the base (5). The inner wall of the base (5) has a longitudinal threaded through groove, and the shape and size of the through groove are adapted to the screw (10).

6. The membrane separation device for hydrogen recovery according to claim 1, characterized in that: The rotating groove (11) is a spherical groove, and the shape and size of the groove are adapted to the top sphere of the support foot (12).

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