Water-blocking filtering membrane structure

Abstract

The utility model discloses a water-blocking filtering membrane structure which comprises an anti-sticking layer, a breathable water-blocking core layer, a silica gel surrounding layer, a semiconductor chilling plate, a cold conducting pipe and back glue, the anti-sticking layer is fixedly installed on the outer surface of the breathable water-blocking core layer, and the back glue is fixedly installed on the inner side of the breathable water-blocking core layer. The silica gel surrounding layer surrounds the outer sides of the anti-sticking layer, the breathable water-blocking core layer and the back glue, the silica gel surrounding layer is fixedly bonded with the anti-sticking layer, the breathable water-blocking core layer and the back glue, a semiconductor chilling plate is fixedly installed on one side of the silica gel surrounding layer, one end of the cold end of the semiconductor chilling plate is inserted into the silica gel surrounding layer, and the other end of the cold end of the semiconductor chilling plate is inserted into the back glue. And the hot end of the semiconductor chilling plate is led to the outside of the silica gel surrounding layer. According to the utility model, through refrigeration of the semiconductor refrigeration sheet, the silica gel surrounding layer is cooled, the anti-sticking layer and the air-permeable water-blocking core layer are cooled, gas is cooled to form water drops when reaching the anti-sticking layer and the air-permeable water-blocking core layer so as to be reliably blocked by the air-permeable water-blocking core layer, and reliable water-blocking and air-permeable are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering membranes, in particular to a water-blocking filtering membrane structure. Background Art

[0002] Hydrogen has become one of the most widely used new energy sources due to its advantages such as being pollution-free and abundant in reserves. Since hydrogen is highly active and extremely unstable, it is very easy to explode when the concentration of hydrogen in the mixed gas is greater than 4%. Therefore, it must be monitored in real time during the use and storage of hydrogen. In addition, the hydrogen detection speed must be fast enough to detect leaked hydrogen before a fire occurs. When hydrogen is detected, the hydrogen needs to be water-blocked and then sent into a detection chamber with a hydrogen detection sensor to detect the concentration of hydrogen. The current water-blocking method is to add a water-blocking and breathable filter membrane to the air inlet. The waterproof and breathable membranes currently on the market are all bidirectional, and can prevent liquid water from passing through while being bidirectionally breathable, but cannot prevent gaseous water molecules from passing through. Therefore, the hydrogen detection sensor in the detection chamber is still easily damaged. Utility Model Content

[0003] The purpose of the present application is to provide a water-blocking filtration membrane structure to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a water-blocking filtration membrane structure, comprising an anti-sticking layer, a breathable water-blocking core layer, a silicone surrounding layer, a semiconductor refrigeration sheet, a cooling tube and a back glue, the outer surface of the breathable water-blocking core layer is fixedly installed with the anti-sticking layer, the inner side of the breathable water-blocking core layer is fixedly installed with the back glue, the silicone surrounding layer surrounds the outer side of the anti-sticking layer, the breathable water-blocking core layer and the back glue, the silicone surrounding layer is fixedly bonded to the anti-sticking layer, the breathable water-blocking core layer and the back glue, a semiconductor refrigeration sheet is fixedly installed on one side of the silicone surrounding layer, the cold end of the semiconductor refrigeration sheet is inserted into the interior of the silicone surrounding layer, and the hot end of the semiconductor refrigeration sheet is passed to the outside of the silicone surrounding layer.

[0005] Preferably, an annular cavity is provided inside the silicone surrounding layer, the cold end of the semiconductor refrigeration plate is inserted into the cavity, and a plurality of cooling tubes are provided inside the anti-sticking layer, one end of each cooling tube is connected to the interior of the cavity.

[0006] Preferably, a plurality of cooling pipes are provided and are evenly spaced apart.

[0007] Preferably, the air-permeable and water-blocking core layer is made of polytetrafluoroethylene material provided with air-permeable micropores.

[0008] Preferably, the surface area of ​​the back adhesive is smaller than the surface area of ​​the air-permeable and water-blocking core layer.

[0009] In summary, the technical effects and advantages of the utility model are:

[0010] In the utility model, the silicone surrounding layer is cooled by cooling through the semiconductor refrigeration sheet, the anti-sticking layer and the breathable water-blocking core layer are cooled, and when the gas reaches the anti-sticking layer and the breathable water-blocking core layer, it is cooled to form water droplets, which are then reliably blocked by the breathable water-blocking core layer, thereby achieving reliable water-blocking and breathability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 This is a schematic cross-sectional view of a water-blocking filtration membrane structure in an embodiment of the present application;

[0013] Figure 2 This is a schematic diagram of the top view of a water-blocking filtration membrane structure in an embodiment of the present application.

[0014] In the figure: 1. Anti-sticking layer; 2. Breathable and water-blocking core layer; 3. Silicone surrounding layer; 4. Cavity; 5. Semiconductor refrigeration sheet; 6. Cooling pipe; 7. Adhesive backing. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0017] It should also be noted that the standard parts used in this application document can be purchased from the market, and can be customized according to the description in the specification and drawings. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances, and in the absence of clear limitations, machines, parts and equipment can all adopt conventional models in the prior art.

[0018] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0019] Example: Reference Figure 1-2 The water-blocking filtration membrane structure shown in the figure comprises an anti-sticking layer 1, an air-permeable water-blocking core layer 2, a silicone surrounding layer 3, a semiconductor refrigeration sheet 5, a cooling tube 6 and a back glue 7. The outer surface of the air-permeable water-blocking core layer 2 is fixedly installed with the anti-sticking layer 1, the inner side of the air-permeable water-blocking core layer 2 is fixedly installed with the back glue 7, the silicone surrounding layer 3 surrounds the outer side of the anti-sticking layer 1, the air-permeable water-blocking core layer 2 and the back glue 7, the silicone surrounding layer 3 is fixedly bonded to the anti-sticking layer 1, the air-permeable water-blocking core layer 2 and the back glue 7, and one side of the silicone surrounding layer 3 is fixed A semiconductor refrigeration sheet 5 is installed, and one end of the cold end of the semiconductor refrigeration sheet 5 is inserted into the interior of the silicone surrounding layer 3, and the hot end of the semiconductor refrigeration sheet 5 is passed to the outside of the silicone surrounding layer 3. The design of the anti-sticking layer can reduce friction, and it is not easy to make noise during use. The silicone surrounding layer is cooled by the semiconductor refrigeration sheet, and the anti-sticking layer and the air-permeable and water-blocking core layer are cooled. When the gas reaches the anti-sticking layer and the air-permeable and water-blocking core layer, it is cooled to form water droplets, which are then reliably blocked by the air-permeable and water-blocking core layer, thereby achieving reliable water-blocking and air-permeability.

[0020] By means of the above structure: an annular cavity 4 is provided inside the silicone surrounding layer 3, the cold end of the semiconductor refrigeration sheet 5 is inserted into the cavity 4, a plurality of cooling tubes 6 are provided inside the anti-sticking layer 1, and one end of the cooling tube 6 is connected with the interior of the cavity 4, so that cold air enters the cooling tube through the cavity to evenly cool the anti-sticking layer, so that the water vapor in the gas reaching the anti-sticking layer is quickly cooled down into water droplets, and is blocked on the outside by the breathable and water-blocking core layer.

[0021] With the above structure: a plurality of cooling pipes 6 are provided and are evenly spaced.

[0022] According to the above structure: the air-permeable and water-blocking core layer 2 is made of polytetrafluoroethylene material with air-permeable micropores.

[0023] With the above structure, the surface area of ​​the adhesive backing 7 is smaller than the surface area of ​​the air-permeable and water-blocking core layer 2 .

[0024] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water blocking filtration membrane structure, characterized in that: The invention comprises an anti-adhesive layer (1), an air-permeable and water-blocking core layer (2), a silicone surrounding layer (3), a semiconductor cooling sheet (5), a cooling tube (6) and a back adhesive (7); the anti-adhesive layer (1) is fixedly mounted on the outer surface of the air-permeable and water-blocking core layer (2); the back adhesive (7) is fixedly mounted on the inner side of the air-permeable and water-blocking core layer (2); the silicone surrounding layer (3) surrounds the outer sides of the anti-adhesive layer (1), the air-permeable and water-blocking core layer (2) and the back adhesive (7); the silicone surrounding layer (3) is fixedly bonded to the anti-adhesive layer (1), the air-permeable and water-blocking core layer (2) and the back adhesive (7); a semiconductor cooling sheet (5) is fixedly mounted on one side of the silicone surrounding layer (3); a cold end of the semiconductor cooling sheet (5) is inserted into the interior of the silicone surrounding layer (3); and a hot end of the semiconductor cooling sheet (5) is passed to the outside of the silicone surrounding layer (3).

2. A water blocking filtration membrane structure according to claim 1, characterized in that: An annular cavity (4) is provided inside the silicone surrounding layer (3), a cold end of the semiconductor cooling sheet (5) is inserted into the cavity (4), a plurality of cooling tubes (6) are provided inside the anti-sticking layer (1), and one end of the cooling tube (6) is connected to the interior of the cavity (4).

3. A water-blocking filtration membrane structure according to claim 2, characterized in that: A plurality of cooling pipes (6) are provided and are evenly spaced.

4. The water-blocking filtration membrane structure according to claim 1, characterized in that: The air-permeable and water-blocking core layer (2) is made of a polytetrafluoroethylene material provided with air-permeable micropores.

5. The water-blocking filtration membrane structure according to claim 1, characterized in that: The surface area of ​​the back adhesive (7) is smaller than the surface area of ​​the air-permeable and water-blocking core layer (2).

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