A plate-and-frame gas separation membrane module

Abstract

The utility model relates to a kind of plate and frame gas separation membrane module, belong to separation membrane technical field, specifically including bottom plate and the cover plate between being provided with multiple separation membrane plates, the separation membrane plate between being provided with guide plate;The bottom plate, cover plate and guide plate are respectively provided with gas inlet channel and waste gas guide hole, the gas inlet channel is set in the side portion of bottom plate, cover plate and guide plate, the waste gas guide hole is set in the end of gas inlet channel, and for the gas inlet channel with separation membrane plate is communicated;Separation membrane plate includes substrate and the separation membrane being set in the substrate both sides, the substrate is provided with separation gas channel and separation gas guide hole, the separation gas channel is set in the side portion of substrate, the separation gas guide hole is set in the end of separation gas channel, and for the gas that penetrates separation membrane is guided into separation gas channel, the utility model can have the advantages such as large contact area, structure stable, material flexible, adapt to multiple working conditions.

Description

Technical Field

[0001] This utility model relates to a plate and frame gas separation membrane module, belonging to the field of separation membrane technology. Background Technology

[0002] Currently, existing gas separation membranes mainly include flat sheet membranes, hollow fiber membranes, and spiral wound membranes. Flat sheet membranes have a simple structure, but their effective separation area per unit volume is small, making it difficult to meet the efficiency requirements of large-scale gas separation. While hollow fiber membranes have a large specific surface area, their manufacturing process is complex and costly, and they are prone to fiber breakage under high pressure conditions, affecting separation performance and service life. Spiral wound membranes, when processing large flow rates of gas, suffer from uneven gas distribution due to limitations in flow channel design, resulting in reduced separation efficiency. Utility Model Content

[0003] To address the technical problems existing in the prior art, this utility model provides a plate and frame gas separation membrane module that combines the advantages of large contact area, stable structure, flexible materials, and adaptability to multiple working conditions.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is a plate-and-frame gas separation membrane assembly, including a base plate, a cover plate, separation membrane plates, and a guide plate. Multiple layers of separation membrane plates are disposed between the base plate and the cover plate, and a guide plate is disposed between the separation membrane plates. An inlet channel, an outlet channel, and an exhaust gas guide hole are respectively provided on the base plate, the cover plate, and the guide plate. The inlet channel and the outlet channel are respectively located at the two ends of the base plate, the cover plate, and the guide plate. The exhaust gas guide hole is located at the end of the inlet channel and the outlet channel and is used to connect the inlet channel and the outlet channel to the separation membrane plates. The separation membrane plate includes a substrate and separation membranes disposed on both sides of the substrate. The substrate is provided with a separation gas channel and a separation gas guide hole. The separation gas channel is disposed on the side of the substrate, and the separation gas guide hole is disposed at the end of the separation gas channel and is used to guide the gas that has passed through the separation membrane into the separation gas channel.

[0005] Preferably, multiple sealing ring fixing grooves are provided between the base plate and the separation membrane plate, between the separation membrane plate and the guide plate, and between the cover plate and the separation membrane plate. A sealing ring is installed in the sealing ring fixing groove, and the separation membrane is clamped between the sealing rings.

[0006] Preferably, the base plate, cover plate, separation membrane plate and guide plate are provided with a plurality of fixing holes on their circumferences, and fixing bolts are provided in the fixing holes.

[0007] Preferably, gas containment grooves are provided on the top surface of the base plate, the bottom surface of the cover plate, both sides of the base plate, and both sides of the guide plate. The exhaust gas guide hole and the separation gas guide hole are respectively disposed in the gas containment groove. Multiple support protrusions are also evenly distributed in the gas containment grooves on both sides of the base plate. The gaps between the support protrusions form surface guide channels, and the surface guide channels are connected to the separation gas guide holes.

[0008] Preferably, the base plate, cover plate, base plate and guide plate are made of plastic, aluminum alloy or stainless steel.

[0009] Compared with existing technologies, this invention has the following technical advantages: Through a multi-layered membrane plate stacking structure, and by alternating the arrangement of multiple membrane plates and guide plates, the contact area between the gas and the membrane is significantly increased, improving separation efficiency. Simultaneously, this design provides a stable plate-frame structure, and the multi-layer stacking results in high mechanical strength, allowing it to adapt to certain pressure conditions. Furthermore, the plate-frame gas separation membrane module offers flexible material selection; different materials such as plastic, aluminum alloy, and stainless steel can be chosen based on the gas medium characteristics and operating conditions, improving the applicability and service life of the membrane module. The plate-frame structure also facilitates disassembly and maintenance; damaged membrane plates can be replaced individually, reducing maintenance costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the separation membrane plate in this utility model.

[0013] Figure 4 This is a schematic diagram of the cross-sectional structure of the separation membrane plate in this utility model.

[0014] Figure 5 This is a schematic diagram of the structure of the guide plate in this utility model.

[0015] Figure 6 This is a schematic diagram of the cross-sectional structure of the guide plate in this utility model.

[0016] Figure 7 This is a structural schematic diagram of the cover plate and base plate in this utility model.

[0017] Figure 8 This is a schematic diagram of the cross-sectional structure of the cover plate and the bottom plate in this utility model. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] like Figures 1 to 8 As shown, a plate-and-frame gas separation membrane module includes a base plate 1, a cover plate 2, separation membrane plates 3, and a guide plate 4. Multiple layers of separation membrane plates 3 are disposed between the base plate 1 and the cover plate 2, and the guide plate 4 is disposed between the separation membrane plates 3. An air inlet channel 5, an air outlet channel 15, and an exhaust gas guide hole 6 are respectively disposed on the base plate 1, the cover plate 2, and the guide plate 4. The air inlet channel 5 and the air outlet channel 15 are respectively disposed at the two ends of the base plate 1, the cover plate 2, and the guide plate 4. The exhaust gas guide hole 6 is disposed at the end of the air inlet channel 5 and the air outlet channel 15, and is used to connect the air inlet channel 5 and the air outlet channel 15 to the separation membrane plates 3. The separation membrane plate 3 includes a substrate 7 and separation membranes 8 disposed on both sides of the substrate. The substrate 7 is provided with a separation gas channel 9 and a separation gas guide hole 10. The separation gas channel 9 is disposed on the side of the substrate 7, and the separation gas guide hole 10 is disposed at the end of the separation gas channel 9 and is used to guide the gas passing through the separation membrane 8 into the separation gas channel 9.

[0020] This invention employs a multi-layered separation membrane plate 3 and a guide plate 4 stacked together, and fixed and sealed at the top and bottom by a cover plate 2 and a base plate 1. The guide plates 4 are arranged between the separation membrane plates 3, with the number selected according to specific operating conditions. The cover plate 2, base plate 1, and guide plate 4 are respectively provided with an inlet channel 5, an outlet channel 15, and a waste gas guide hole 6. The separation membrane plate 3 is provided with a separation gas channel 9 and a separation gas guide hole 10. Thus, industrial waste gas enters the spaces between the base plate 1 and the separation membrane plate 3, between the separation membrane plate 3 and the guide plate 4, and between the cover plate 2 and the separation membrane plate 3 through the inlet channel 5 and the waste gas guide hole 6, and then passes through the separation membrane 8 for separation. The separated gas is discharged through the separation gas guide hole 10 and the separation gas channel 9. Unseparated waste gas enters the outlet channel 15 through the waste gas guide hole 6 for discharge. The separation membrane plate 3 is constructed by mounting the separation membrane 8 on a base plate 7, and sealing is achieved through the mutual compression of the base plate 1, cover plate 2, separation membrane plate 3, and guide plate 4.

[0021] Multiple sealing ring fixing grooves 11 are provided between the base plate 1 and the separation membrane plate 3, between the separation membrane plate 3 and the guide plate 4, and between the cover plate 2 and the separation membrane plate 3. Sealing rings are installed within the sealing ring fixing grooves 11, and the separation membrane 8 is held between the sealing rings. By setting the sealing ring fixing grooves 11 and the sealing rings, the sealing membrane is compressed by the sealing rings to achieve a seal, ensuring the sealing effect of the entire device. Multiple fixing holes 12 are provided on the circumference of the base plate 1, cover plate 2, separation membrane plate 3, and guide plate 4, and fixing bolts are installed in the fixing holes 12. The fixing bolts are used to fix the base plate 1, cover plate 2, separation membrane plate 3, and guide plate 4, thereby achieving a tight seal.

[0022] Gas containment grooves 13 are respectively provided on the top surface of the base plate 1, the bottom surface of the cover plate 2, both sides of the substrate 7, and both sides of the guide plate 4. Exhaust gas guide holes 6 and separation gas guide holes 10 are respectively located within the gas containment grooves 13. Multiple support protrusions 14 are also evenly distributed within the gas containment grooves on both sides of the substrate 7. The gaps between the support protrusions 14 form surface guide channels 14, which are connected to the separation gas guide holes 10. The gas containment grooves 13 ensure sufficient separation space for the gas, facilitating gas separation. Simultaneously, the multiple support protrusions 14 evenly distributed within the gas containment grooves on both sides of the substrate 7 provide support for the separation membrane, preventing it from collapsing or breaking under stress, thus affecting the separation effect.

[0023] In addition, the base plate 1, cover plate 2, substrate 7, and guide plate 4 are made of plastic, aluminum alloy, or stainless steel. Different materials such as plastic, aluminum alloy, and stainless steel can be selected according to the characteristics of the gas medium and the operating conditions to improve the applicability and service life of the membrane module and reduce maintenance costs.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included within the scope of the present utility model.

Claims

1. A plate-and-frame gas separation membrane module, characterized in that: The device includes a base plate, a cover plate, separation membrane plates, and a guide plate. Multiple layers of separation membrane plates are disposed between the base plate and the cover plate, and a guide plate is disposed between the separation membrane plates. An air inlet channel, an air outlet channel, and an exhaust gas guide hole are respectively disposed on the base plate, the cover plate, and the guide plate. The air inlet channel and the air outlet channel are respectively disposed on both sides of the base plate, the cover plate, and the guide plate. The exhaust gas guide hole is disposed at the end of the air inlet channel and the air outlet channel and is used to connect the air inlet channel and the air outlet channel to the separation membrane plates. The separation membrane plate includes a substrate and separation membranes disposed on both sides of the substrate. The substrate is provided with a separation gas channel and a separation gas guide hole. The separation gas channel is disposed on the side of the substrate, and the separation gas guide hole is disposed at the end of the separation gas channel and is used to guide the gas that has passed through the separation membrane into the separation gas channel.

2. The plate-and-frame gas separation membrane module according to claim 1, characterized in that: Multiple sealing ring fixing grooves are provided between the base plate and the separation membrane plate, between the separation membrane plate and the guide plate, and between the cover plate and the separation membrane plate. A sealing ring is installed in the sealing ring fixing groove, and the separation membrane is held between the sealing rings.

3. A plate-and-frame gas separation membrane module according to claim 1, characterized in that: The base plate, cover plate, separation membrane plate and guide plate are provided with multiple fixing holes on their circumferences, and fixing bolts are installed in the fixing holes.

4. A plate-and-frame gas separation membrane module according to claim 1, characterized in that: Gas containment grooves are provided on the top surface of the base plate, the bottom surface of the cover plate, both sides of the base plate and both sides of the guide plate. The exhaust gas guide hole and the separation gas guide hole are respectively set in the gas containment groove. Multiple support protrusions are also evenly distributed in the gas containment grooves on both sides of the base plate. The gap between the support protrusions forms a surface guide channel, and the surface guide channel is connected to the separation gas guide hole.

5. A plate-and-frame gas separation membrane module according to any one of claims 1-4, characterized in that: The base plate, cover plate, base plate, and guide plate are made of plastic, aluminum alloy, or stainless steel.

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