A humidifier with replaceable humidification cartridge assembly

Abstract

A humidifier of replaceable humidifying filter element assembly, the shell includes an end cover and a shell body, the end cover is installed on one side of the shell body, the end cover is provided with a first cavity, the end cover is provided with a first tubular opening communicated with the first cavity, the shell is provided with a second cavity, the port of the second cavity is communicated with the port of the first cavity, the shell is provided with a second tubular opening, a third tubular opening and a fourth tubular opening communicated with the second cavity; the humidifying filter element assembly includes a first sealing frame, a second sealing frame, a third sealing frame and a hollow fiber membrane tube unit, the hollow fiber membrane tube unit includes a support tube and a hollow fiber membrane tube.The humidifying filter element assembly of the utility model is sealed with the shell as an independent assembly, can effectively realize the exchange of moisture and heat, and can quickly replace the humidifying filter element assembly by disassembling the end cover, so that the humidifying filter element assembly is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of fuel cells, and more particularly to fuel cell air intake systems, especially a humidifier with a replaceable humidification filter assembly. Background Technology

[0002] A humidifier is installed in the hydrogen fuel cell system to regulate the humidity of the gas entering the stack, ensuring that the proton exchange membrane is maintained in a suitable water saturation state, thereby improving reaction efficiency and system stability. It is an indispensable and important component in the fuel cell system.

[0003] Existing fuel cell humidifiers use hollow fiber membrane tubes. Dry gas flows through the inside of the hollow fiber membrane tube, while humid air flows through the outside, exchanging moisture and heat within the tube. However, after prolonged use, humidifiers are prone to fatigue, membrane structure damage, and decreased hydrophilicity, leading to reduced moisture and heat exchange efficiency and affecting the reliability of the fuel cell stack. Therefore, humidifiers need to be replaced periodically.

[0004] However, the humidifier of the aforementioned fuel cell is a disposable structure, and the humidification filter component in the humidifier cannot be replaced separately. This not only increases maintenance costs but also increases resource consumption and pollutant treatment processes, which is not conducive to resource conservation and environmental protection trends. Summary of the Invention

[0005] The purpose of this invention is to provide a humidifier with a replaceable humidifying filter assembly, which solves the technical problem in the prior art that the humidifying filter assembly cannot be replaced individually.

[0006] This utility model discloses a humidifier with a replaceable humidifying filter assembly, comprising:

[0007] The housing includes an end cap and a body. The end cap is installed on one side of the body and has a first cavity. The end cap has a first tubular opening communicating with the first cavity. The body has a second cavity, and the port of the second cavity is communicating with the port of the first cavity. The body has a second tubular opening, a third tubular opening, and a fourth tubular opening communicating with the second cavity, arranged sequentially from the port of the first cavity towards the depth direction.

[0008] A humidifying filter assembly includes a first sealing frame, a second sealing frame, a third sealing frame, and two or more hollow fiber membrane tube units. The first, second, and third sealing frames are parallel and spaced apart, and arranged sequentially. Each hollow fiber membrane tube unit includes a support tube and a plurality of hollow fiber membrane tubes. The hollow fiber membrane tubes are located inside the support tube and arranged radially along the support tube. The axial direction of the hollow fiber membrane tubes is parallel to the axial direction of the support tube. The support tube has multiple through holes distributed in its wall. The hollow fiber membrane tube units are arranged parallel and spaced apart. Both ends of each hollow fiber membrane tube unit are respectively connected and fixed to the first and third sealing frames, and the middle part of each hollow fiber membrane tube unit is connected and fixed to the second sealing frame.

[0009] Furthermore, the inner wall between the first tubular opening and the port of the first cavity is provided with a first stepped surface, which is sealed to the first sealing frame. The inner wall between the second tubular opening and the third tubular opening of the second cavity is provided with a second stepped surface, which is sealed to one side of the second sealing frame. The inner wall between the third tubular opening and the fourth tubular opening of the second cavity is provided with a third stepped surface, which is sealed to the third sealing frame.

[0010] Furthermore, a first sealing element is provided between the first stepped surface and the first sealing frame, a second sealing element is provided between the second stepped surface and the second sealing frame, and a third sealing element is provided between the third stepped surface and the third sealing frame.

[0011] Furthermore, the first stepped surface is parallel to the port of the first cavity, and the second and third stepped surfaces are parallel to the port of the second cavity.

[0012] Furthermore, the number of the support tubes is more than one.

[0013] Furthermore, the end cap is installed on one side of the housing by a snap or screw.

[0014] Furthermore, the cross-section of the support tube is waist-shaped.

[0015] Compared with existing technologies, the advantages of this invention are positive and significant. The humidifying filter assembly of this invention is an independent component that forms a seal with the housing. The humidifying filter assembly, fixed inside the housing, effectively facilitates the exchange of moisture and heat. The humidifying filter assembly can be quickly replaced by removing the end cap, making replacement convenient. Attached Figure Description

[0016] Figure 1 This is the front view of this utility model.

[0017] Figure 2 This is a top view of the present invention.

[0018] Figure 3 yes Figure 2 AA sectional view.

[0019] Figure 4 This is a schematic diagram of the humidification filter element assembly of this utility model.

[0020] Figure 5 This is an enlarged schematic diagram of the hollow fiber membrane tube of this utility model.

[0021] The markings in the diagram are as follows: 1. Shell; 101. End cap; 102. Shell body; 103. First cavity; 104. Second cavity; 105. First tubular opening; 106. Second tubular opening; 107. Third tubular opening; 108. Fourth tubular opening; 109. First stepped surface; 110. Second stepped surface; 111. Third stepped surface; 2. Humidifying filter element assembly; 201. Support tube; 202. Through hole; 203. Hollow fiber membrane tube; 204. First sealing frame; 205. Second sealing frame; 206. Third sealing frame; 207. First seal; 208. Second seal; 209. Third seal. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this does not limit the present invention.

[0023] like Figures 1-5 As shown, this utility model discloses a humidifier with a replaceable humidifying filter assembly, comprising:

[0024] The housing 1 includes an end cap 101 and a body 102. The end cap 101 is installed on one side of the body 102. A first cavity 103 is provided inside the end cap 101. A first tubular opening 105 communicating with the first cavity 103 is provided on one side of the end cap 101. A second cavity 104 is provided inside the body 102. The opening of the second cavity 104 is adjacent to the opening of the first cavity 103. A second tubular opening 106, a third tubular opening 107, and a fourth tubular opening 108 are sequentially provided on one side of the body 102 from the opening of the first cavity 103 towards its depth. The second tubular opening 106, the third tubular opening 107, and the fourth tubular opening 108 are all communicating with the second cavity 104.

[0025] The humidifying filter element assembly 2 includes a first sealing frame 204, a second sealing frame 205, a third sealing frame 206, and two or more hollow fiber membrane tube units. The first sealing frame 204, the second sealing frame 205, and the third sealing frame 206 are parallel and spaced apart, and arranged sequentially. Each hollow fiber membrane tube unit includes a support tube 201 and a plurality of hollow fiber membrane tubes 203. The hollow fiber membrane tubes 203 are located inside the support tube 201 and arranged radially along the support tube 201. The axial direction of the hollow fiber membrane tubes 203 is parallel to the axial direction of the support tube 201. The support tube 201 has a plurality of through holes 202 distributed on its wall. The hollow fiber membrane tube units are arranged in parallel and spaced apart. The two ends of any hollow fiber membrane tube unit are respectively connected and fixed to the first sealing frame 204 and the third sealing frame 206, and the middle part of any hollow fiber membrane tube unit is connected and fixed to the second sealing frame 205.

[0026] Furthermore, the inner wall between the first tubular opening 105 and the port of the first cavity 103 is provided with a first stepped surface 109, which is sealed to the first sealing frame 204. The inner wall between the second tubular opening 106 and the third tubular opening 107 of the second cavity 104 is provided with a second stepped surface 110, which is sealed to one side of the second sealing frame 205. The inner wall between the third tubular opening 107 and the fourth tubular opening 108 of the second cavity 104 is provided with a third stepped surface 111, which is sealed to the third sealing frame 206.

[0027] Furthermore, a first sealing element 207 is provided between the first stepped surface 109 and the first sealing frame 204, a second sealing element 208 is provided between the second stepped surface 110 and the second sealing frame 205, and a third sealing element 209 is provided between the third stepped surface 111 and the third sealing frame 206.

[0028] Furthermore, the end cap 101 is installed on one side of the housing 102 by a snap or screw.

[0029] Furthermore, the first stepped surface 109 is parallel to the port of the first cavity 103, and the second stepped surface 110 and the third stepped surface 111 are parallel to the port of the second cavity 104.

[0030] Furthermore, the cross-section of the support tube 201 is waist-shaped.

[0031] In use, the first sealing frame 204 of the humidifying filter element assembly 2 is sealed to the first cavity 103, and the second sealing frame 205 and the third sealing frame 206 of the humidifying filter element assembly 2 are sealed to the second cavity 104. The outer circumference portions on both sides of the hollow fiber membrane tube 203 can be sealed to the first sealing frame 204 and the third sealing frame 206 respectively by means of potting glue. Dry air flows in through the first tubular opening 105, passes through the inner hole area of ​​the hollow fiber membrane tube 203, and flows out through the fourth tubular opening 108. High-temperature and high-humidity air flows in through the third tubular opening 107, passes through the through hole 202 of the support tube 201, enters the support tube 201, passes through the outer area of ​​the hollow fiber membrane tube 203, and flows out through the second tubular opening 106. Dry and humid air exchange water and heat on the hollow fiber membrane tube 203 to achieve the humidification function.

[0032] The humidifying filter element assembly 2 is an independent component. The end cap 101 is detachably installed on one side of the housing 102 by means of a snap or screw. After removing the end cap 101, the humidifying filter element assembly 2 can be disassembled and replaced.

[0033] The first sealing frame 204, the second sealing frame 205, and the third sealing frame 206 can be sealed to the side walls of the first cavity 103 and the second cavity 104 by providing sealing material on the outside, or they can be sealed by providing the first sealing element 207, the second sealing element 208, and the third sealing element 209 individually. The sealing structure can be an axial seal between the sealing material or the sealing element and the first step surface 109, the second step surface 110, and the third step surface 111, or a radial seal between the sealing material or the sealing element and the inner walls of the first cavity 103 and the second cavity 104, or a combination of both. The seal is formed by compression, and the structure is simple and easy to replace quickly.

[0034] The cross-section of the support tube 201 is set to be waist-shaped. Compared with the circular support tube 201, when the same number of hollow fiber membranes 203 are set, the distance from the hollow fiber membrane tube 203 located in the center of the support tube 201 to the tube wall can be shortened, thereby improving the efficiency of moisture and heat exchange.

Claims

1. A humidifier with a replaceable humidifying filter assembly, characterized in that, include: The housing (1) includes an end cap (101) and a body (102). The end cap (101) is installed on one side of the body (102). A first cavity (103) is provided inside the end cap (101). The end cap (101) is provided with a first tubular opening (105) communicating with the first cavity (103). The body (102) is provided with a second cavity (104). The port of the second cavity (104) is connected to the port of the first cavity (103). The body (102) is provided with a second tubular opening (106), a third tubular opening (107), and a fourth tubular opening (108) communicating with the second cavity (104) in sequence from the port of the first cavity (103) towards the depth direction. The humidifying filter element assembly (2) includes a first sealing frame (204), a second sealing frame (205), a third sealing frame (206), and two or more hollow fiber membrane tube units. The first sealing frame (204), the second sealing frame (205), and the third sealing frame (206) are parallel and spaced apart and arranged sequentially. Each hollow fiber membrane tube unit includes a support tube (201) and a plurality of hollow fiber membrane tubes (203). 03) The hollow fiber membrane tube (203) is located inside the support tube (201) and arranged radially along the support tube (201). The axial direction of the hollow fiber membrane tube (203) is parallel to the axial direction of the support tube (201). The support tube (201) has multiple through holes (202) distributed on its wall. The hollow fiber membrane tube units are arranged in parallel at intervals. Both ends of any hollow fiber membrane tube unit are respectively connected and fixed to the first sealing frame (204) and the third sealing frame (206). The middle part of any hollow fiber membrane tube unit is connected and fixed to the second sealing frame (205).

2. The humidifier with a replaceable humidifying filter assembly as described in claim 1, characterized in that: The inner wall between the first tubular opening (105) and the port of the first cavity (103) is provided with a first stepped surface (109), which is sealed to the first sealing frame (204). The inner wall between the second tubular opening (106) and the third tubular opening (107) of the second cavity (104) is provided with a second stepped surface (110), which is sealed to one side of the second sealing frame (205). The inner wall between the third tubular opening (107) and the fourth tubular opening (108) of the second cavity (104) is provided with a third stepped surface (111), which is sealed to the third sealing frame (206).

3. The humidifier with a replaceable humidifying filter assembly as described in claim 2, characterized in that: A first sealing element (207) is provided between the first step surface (109) and the first sealing frame (204), a second sealing element (208) is provided between the second step surface (110) and the second sealing frame (205), and a third sealing element (209) is provided between the third step surface (111) and the third sealing frame (206).

4. The humidifier with a replaceable humidifying filter assembly as described in claim 3, characterized in that: The first step surface (109) is parallel to the port of the first cavity (103), and the second step surface (110) and the third step surface (111) are parallel to the port of the second cavity (104).

5. The humidifier with a replaceable humidifying filter assembly as described in claim 1, characterized in that: The number of the support tubes (201) is one or more.

6. The humidifier with a replaceable humidifying filter assembly as described in claim 1, characterized in that: The end cap (101) is installed on one side of the housing (102) by a snap or screw.

7. The humidifier with a replaceable humidifying filter assembly as described in claim 1, characterized in that: The cross-section of the support tube (201) is waist-shaped.

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