A dehumidification device for vacuum film special for facilitating assembly

Abstract

The application discloses a kind of special dehumidification equipment of vacuum film convenient to assemble, including connecting device, film coating device, film carrying device, selective vacuum dehumidification film and vacuum pump.The connecting device includes first cover plate and second cover plate, the film coating device includes support strip, support block and film pressing assembly, the film carrying device includes film supporting assembly, second sealant strip and bottom plate.The film pressing assembly includes back-shaped frame, back-shaped rubber pad and first sealant strip, the film supporting assembly includes support plate and porous support layer.The selective vacuum dehumidification film is arranged between film pressing assembly and film supporting assembly, and there is a ventilation opening for connecting vacuum pump between the side platform of support plate and bottom plate.The application is closely connected, compact structure and flexible and convenient installation, can realize the stable dehumidification of gas, belongs to the field of membrane dehumidification, solves the step of disassembling and replacing membrane body of existing membrane dehumidification equipment, and solves the technical problem that stable dehumidification is difficult to realize.

Description

Technical Field

[0001] This invention relates to the field of equipment dehumidification, and more specifically, to a vacuum membrane dehumidification device that is easy to assemble. Background Technology

[0002] Air humidity plays a vital role in human health and the living environment, and is one of the important indicators for evaluating indoor air quality. In humid environments, bacteria and mold can proliferate, negatively impacting human health. Therefore, using dehumidifiers to regulate indoor air humidity is crucial for reducing the energy consumption of HVAC systems and creating a comfortable and healthy indoor environment.

[0003] Vacuum membrane dehumidification technology can improve the precision of indoor thermal and humidity control, enhance human thermal comfort, and reduce energy consumption and carbon emissions from HVAC systems. This technology dehumidifies through the selective permeability of the membrane material; water molecules in the air can easily pass through the membrane, while other substances have difficulty. Finally, water molecules are desorbed from the membrane on the permeate side through vacuum or purging, achieving dehumidification. This technology is considered an isothermal dehumidification technique because it involves the desorption of water vapor simultaneously with dehumidification.

[0004] Currently, the dehumidification equipment industry generally uses an external casing structure to achieve airtightness. This design is simple, low-cost, and suitable for large-volume dehumidification systems. However, the airtightness of this type of casing often fails to meet expectations, easily leading to airflow loss and unstable air delivery parameters.

[0005] In addition, the industry has proposed many dehumidification devices based on membrane dehumidification technology. For example, Chinese invention patent CN205145936 U discloses a high-efficiency membrane dehumidifier that can achieve quasi-countercurrent heat and mass transfer between air and solution, resulting in high dehumidification efficiency; Chinese invention patent CN107036192A proposes a high-efficiency negative pressure membrane dehumidifier, which uses vacuum membrane dehumidification technology to achieve efficient dehumidification of air. However, most membrane dehumidifiers require the use of dehumidification solution to perform dehumidification, and the dehumidification solution needs to be regenerated after use to achieve continuous dehumidification. This results in a complex dehumidification system structure and large equipment size. Furthermore, selective vacuum dehumidification membranes need to be replaced after long-term use, and the complex or even integrated equipment structure makes the disassembly and replacement of the membrane difficult, which also indirectly increases the dehumidification cost. Summary of the Invention

[0006] This invention provides a vacuum membrane dehumidification device that is easy to assemble, featuring tight bonding, stability, reliability, and a compact structure. It solves the problems of existing membrane dehumidification devices, such as cumbersome membrane disassembly and replacement procedures and difficulty in achieving stable dehumidification.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A vacuum membrane dehumidification device that is easy to assemble includes a connecting device, a film covering device, a film carrying device, a selective vacuum dehumidification membrane, and a vacuum pump. The connecting device includes a first cover plate and a second cover plate; the film covering device includes a support strip, a support block, and a film pressing assembly; the film carrying device includes a film supporting assembly, a second sealing strip, and a base plate; the film pressing assembly includes a U-shaped frame, a U-shaped gasket, and a first sealing strip; and the film supporting assembly includes a support plate and a porous support layer.

[0009] In a preferred embodiment, the first cover plate is located on the upper side of the film-coating device, at the top of the equipment. The support strip and support block are both located on the lower side of the first cover plate. The U-shaped frame is located on the lower side of the support strip and support block. The U-shaped rubber pad and the first sealing strip are adhered to the lower side of the U-shaped frame. A film-supporting assembly is located on the lower side of the film-pressing assembly. A rectangular hole is formed on the support plate, and the porous support layer is adhered to the rectangular hole in the support plate. The bottom plate is located on the lower side of the film-supporting assembly. The second sealing strip is adhered between the support plate and the bottom plate. The second cover plate is located on the lower side of the film-carrying device, at the bottom end of the equipment. An air inlet and an air outlet exist between the first cover plate and the film-pressing assembly. The selective vacuum dehumidification membrane is located between the film-pressing assembly and the film-supporting assembly. A ventilation opening exists between the support plate and the bottom plate for connecting a vacuum pump.

[0010] In a preferred embodiment, the first cover plate and the second cover plate are identical in size and structure, and both are provided with bolt holes. They are connected by bolts to reinforce the equipment and ensure the structural stability of the equipment.

[0011] In a preferred embodiment, there are two support strips, which are parallel to each other on both sides of the lower surface of the first cover plate and are tightly fitted to the lower surface of the first cover plate. The support blocks are located on both sides of the lower surface of the first cover plate where there are no support strips, and the support strips and support blocks are at the same height. The distance between the inner and outer frames of the loop-shaped frame is 20-25mm. The loop-shaped rubber pad is pasted on the lower surface of the loop-shaped frame and has a thickness of 1-2mm. The distance between the inner and outer frames is 10-12mm. The inner frame of the loop-shaped rubber pad is the same size as the inner frame of the loop-shaped frame. The diameter of the first sealing strip is 2-3mm. It is pasted on the lower surface of the loop-shaped frame and is 5-6mm away from the outer edge of the loop-shaped frame.

[0012] In a preferred embodiment, the support plate has a rectangular hole at its center, located directly below the inner frame of the herringbone frame, and the rectangular hole is the same size as the inner frame. Both the support plate and the base plate have a rectangular platform protruding from their sides, with a ventilation opening at this platform for connecting a vacuum pump. The second sealing strip, 2-4 mm thick, is adhered between the support plate and the base plate, with a distance of 5-6 mm from the edge of the plate.

[0013] The porous support layer is pasted into the rectangular holes of the support plate to support the membrane of the selective vacuum dehumidification membrane and ensure that the membrane is laid horizontally on the upper end of the membrane support assembly.

[0014] To ensure the airtightness of the equipment, the connecting device of the vacuum membrane dehumidification equipment is fixed by bolts to ensure the structural stability of the equipment. The selective vacuum dehumidification membrane is laid horizontally on the membrane support assembly, and the shortest distance between the edge of the membrane and the edge of the support plate is 10-12mm. The U-shaped rubber pad compresses and covers the upper surface of the selective vacuum dehumidification membrane, so that the lower surface of the selective vacuum dehumidification membrane is in close contact with the upper surface of the support plate. The first sealing strip is compressed on the upper surface of the support plate. The airtightness of the equipment is ensured by the compression of the U-shaped frame and the support plate. The carrier membrane device is connected to the vacuum pump through the vent. During equipment operation, the vacuum pump continuously extracts air from the inside of the carrier membrane device to form a stable negative pressure space. The second sealing strip ensures the airtightness of the carrier membrane device by the compression of the support plate and the bottom plate.

[0015] In order to support the first cover plate and form an air inlet and an air outlet between the first cover plate and the pressure film assembly, the support strip is arranged parallel to both sides of the lower surface of the first cover plate and is tightly fitted to the lower surface of the first cover plate to ensure airtightness.

[0016] To prevent deformation of the surface of the first cover plate and to stabilize the fluid at the air inlet and outlet, the support blocks are equidistantly attached to the side edges of the air inlet and outlet between the first cover plate and the U-shaped frame.

[0017] To meet the demand for handling larger volumes of gas, and in cases where multiple vacuum membrane dehumidification units need to be used together, the different units can be assembled using connecting devices. Specifically:

[0018] The cover plates are all equipped with bolt holes, and different devices are connected by bolts to achieve the combination of devices. This connection method not only ensures the structural stability of the combined equipment and the structural stability of the equipment itself, but also greatly improves the gas processing efficiency.

[0019] The beneficial effects of this invention are as follows:

[0020] Vacuum membrane dehumidification equipment ensures airtightness through sealing strips and U-shaped gaskets, and the equipment structure is stabilized by bolts. This effectively stabilizes gas parameters, prevents airflow loss, and improves the control accuracy of indoor thermal and humidity environment.

[0021] Vacuum membrane dehumidification equipment is compact in size, flexible and convenient to install, and suitable for use in combination with various other equipment. Furthermore, the coating and carrier membrane units of this equipment are independent, which facilitates the selective removal and replacement of the vacuum dehumidification membrane, improving dehumidification efficiency and reducing costs.

[0022] It can effectively dehumidify the gas, providing dry air for the air conditioning system, while ensuring that the gas temperature and humidity meet the requirements. This allows the evaporator of the air conditioning system to operate in dry conditions without having to perform dehumidification, making it more energy-efficient and environmentally friendly.

[0023] When the above technical solution is adopted, the vacuum pump will draw air from the inside of the membrane carrier device during operation of the vacuum membrane dehumidification equipment. Due to the selective permeability of the selective vacuum dehumidification membrane, water and a small amount of gas will permeate to the bottom of the membrane support assembly and be discharged through the vent. The humid air enters the device through the air inlet, and after being dehumidified by the vacuum membrane, it becomes dry air and is then discharged into the room through the air outlet, thus achieving stable dehumidification.

[0024] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the vacuum membrane dehumidification device of the present invention;

[0027] Figure 2 This is a schematic diagram of the connection device structure of the vacuum membrane dehumidification device of the present invention;

[0028] Figure 3 This is a schematic diagram of the coating device structure of the vacuum membrane dehumidification device of the present invention;

[0029] Figure 4 This is a schematic diagram of the carrier membrane device structure of the vacuum membrane dehumidification device of the present invention;

[0030] Figure 5 This is a schematic diagram of the internal structure of the vacuum membrane dehumidification device of the present invention.

[0031] Reference numerals: a, connecting device; b, film covering device; c, film carrier device; 1, first cover plate; 2, support strip; 3, support block; 4, U-shaped frame; 5, U-shaped rubber pad; 6, first sealing strip; 7, selective vacuum dehumidification membrane; 8, porous support layer; 9, support plate; 9a, upper rectangular platform; 10, second sealing strip; 11, bottom plate; 11a, lower rectangular platform; 12, second cover plate; f1, air inlet; f2, air outlet; f3, ventilation opening. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0033] Example:

[0034] like Figure 1 As shown, the first cover plate 1 is tightly connected to the film covering device a to ensure that the edges fit together, and an air inlet f1 and an air outlet f2 are formed at the support blocks 3 on both sides. The first cover plate 1 and the second cover plate 12 are connected by bolt holes.

[0035] like Figure 5 As shown, the selective vacuum dehumidification membrane 7 is horizontally laid on the membrane support assembly composed of a porous support layer 8 and a support plate 9. A U-shaped adhesive pad 5 is adhered to the lower surface of the U-shaped frame 4. The U-shaped adhesive pad 5 will squeeze the selective vacuum dehumidification membrane 7, so that the selective vacuum dehumidification membrane 7 is tightly attached to the upper surface of the support plate 9. The first sealing strip 6 adhered to the lower surface of the U-shaped frame 4 will be squeezed by the support plate 9, forming a new sealed space on the outside of the selective vacuum dehumidification membrane 7.

[0036] like Figure 4 As shown, after the vacuum membrane dehumidification equipment is assembled, the vacuum pump is connected to the vent f3 between the upper rectangular platform 9a and the lower rectangular platform 11a, which will extract air from the internal area of ​​the carrier membrane device c on the lower side of the selective vacuum dehumidification membrane 7 and maintain the area in a stable negative pressure state.

[0037] like Figure 1 As shown, the device connects to the humid air to be treated through the air inlet f1. The water vapor and a small amount of gas in the humid air will permeate through the selective vacuum dehumidification membrane 7 inside the device to the negative pressure area of ​​the lower membrane device c. The highly humid permeated gas will be discharged from the vent f3 by the vacuum pump. The dry air formed after the humid air is treated by the device will be provided to the user through the air outlet f2, thus achieving stable dehumidification.

[0038] The preferred embodiments of the present invention have been described above, but should not be construed as limiting the scope of the claims. The present invention is not limited to the above embodiments; variations in its specific structure are permitted. Those skilled in the art can make various changes and modifications based on the present invention, all of which, as long as they do not depart from the spirit of the invention, fall within the scope defined by the appended claims.

Claims

1. A vacuum membrane dehumidification device that is easy to assemble, comprising a connecting device, a coating device, a carrier membrane device, a selective vacuum dehumidification membrane, and a vacuum pump, characterized in that: The connecting device includes a first cover plate and a second cover plate; the film coating device includes a support strip, a support block and a film pressing assembly; the film carrier device includes a film supporting assembly, a second sealing strip and a base plate; the film pressing assembly includes a U-shaped frame, a U-shaped gasket and a first sealing strip; the film supporting assembly includes a support plate and a porous support layer. The first cover plate is located on the upper side of the film coating device, at the top of the equipment. The support strip and support block are both located on the lower side of the first cover plate. The U-shaped frame is located on the lower side of the support strip and support block. The U-shaped rubber pad and the first sealing strip are pasted on the lower side of the U-shaped frame. A film support assembly is provided on the lower side of the film pressing assembly. A rectangular hole is opened on the support plate. The porous support layer is pasted in the rectangular hole of the support plate. The bottom plate is located on the lower side of the film support assembly. The second sealing strip is pasted between the support plate and the bottom plate. The second cover plate is located on the lower side of the film carrier device, at the bottom end of the equipment. There is an air inlet and an air outlet between the first cover plate and the pressing film assembly. The selective vacuum dehumidification membrane is disposed between the pressing film assembly and the supporting film assembly. A rectangular platform protrudes from the side of both the support plate and the bottom plate. There is a vent at the platform to connect to the vacuum pump. The U-shaped rubber pad squeezes and covers the upper surface of the selective vacuum dehumidification membrane, so that the lower surface of the selective vacuum dehumidification membrane is tightly attached to the upper surface of the support plate.

2. The vacuum membrane dehumidification equipment according to claim 1, characterized in that: The first and second cover plates are identical in size and structure, and both are provided with bolt holes. They are connected by bolts to reinforce the equipment and ensure its structural stability.

3. The vacuum membrane dehumidification equipment according to claim 1, characterized in that: There are two support strips, which are parallel to each other on both sides of the lower surface of the first cover plate and are tightly fitted to the lower surface of the first cover plate. The support blocks are located on both sides of the lower surface of the first cover plate where there are no support strips, and the support strips and support blocks are at the same height. The distance between the inner and outer frames of the loop-shaped frame is 20-25mm. The loop-shaped rubber pad is pasted on the lower surface of the loop-shaped frame and has a thickness of 1-2mm. The distance between the inner and outer frames is 10-12mm. The inner frame of the loop-shaped rubber pad is the same size as the inner frame of the loop-shaped frame. The diameter of the first sealing strip is 2-3mm. It is pasted on the lower surface of the loop-shaped frame and is 5-6mm away from the outer edge of the loop-shaped frame.

4. The vacuum membrane dehumidification equipment according to claim 1, characterized in that: A rectangular hole is provided in the center of the support plate. The hole is located directly below the inner frame of the herringbone frame. The rectangular hole is the same size as the inner frame of the herringbone frame. The second sealing strip is 2-4 mm thick and is pasted between the support plate and the base plate. The distance between the sealing strip and the edge of the plate is 5-6 mm.

5. The vacuum membrane dehumidification equipment according to claim 1, characterized in that: The selective vacuum dehumidification membrane is laid horizontally on the membrane support assembly, and the shortest distance between the edge of the membrane and the edge of the support plate is 10-12 mm.

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