Glass-packaged hydrogen storage container

Abstract

The utility model discloses a glass packaged hydrogen storage container. The device comprises a glass microtube matrix, a metal adapter, a glass packaging layer and a protective layer. The glass micro-tube matrix is composed of silicate or quartz glass capillary tubes, one end is arranged in the metal adapter, and gaps between the glass micro-tube matrix and the metal adapter are filled with low-temperature glass powder to form a glass packaging layer, so that airtightness and structural stability are guaranteed; the protective layer is arranged on the outer side of the glass microtube matrix and is made of a resin composite material mixed with short glass fibers, so that the strength and the aging resistance can be effectively enhanced, the defects of common resin are effectively overcome, a better protection effect is provided for the hydrogen storage container, and the safety and the stability of the hydrogen storage container in hydrogen storage application are guaranteed. The device has the remarkable advantage of simple and convenient process and is easy to implement and operate, the problem of strength attenuation caused by aging of a resin material can be successfully avoided by means of packaging and performance enhancement treatment of glass, and the weather resistance of the hydrogen storage container is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydrogen energy technology field, especially a kind of glass encapsulated hydrogen storage container. BACKGROUND

[0002] In the process of promoting high-quality development and "double carbon" strategy in China, hydrogen energy, as the core component of clean energy, is increasingly valued. In the field of transportation, hydrogen energy drives the innovation of transportation tools, reduces carbon emissions and helps build a green travel system. In the industrial field, it promotes the transformation of production processes, reduces energy consumption and pollution, and optimizes the industrial structure. Therefore, developing hydrogen energy is not only an inevitable path to address climate change and resource scarcity, but also an important strategic choice for China to achieve sustainable development goals. It has irreplaceable profound significance for promoting economic green transformation and building an eco-friendly society.

[0003] However, the existing hydrogen storage container such as application number CN216619323U has proposed a portable high-pressure hydrogen storage container for storing hydrogen gas using a glass array, which uses resin material for sealing to reduce hydrogen permeation. However, the aging characteristics and low pressure resistance of resin material are not conducive to the use of hydrogen gas in extreme conditions and long-term storage, so a new packaging method is needed to enhance the glass array hydrogen storage container. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a glass encapsulated hydrogen storage container to improve the long-term storage and impact resistance of the hydrogen storage container, ensure the safety of hydrogen storage and transportation, and solve the problems raised in the background art.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A glass encapsulated hydrogen storage container includes a glass microtube matrix, a metal adapter, a glass encapsulation layer and a protective layer. The metal adapter is divided into upper and lower parts, which are connected by threads or clamped together. The upper part is composed of a base and a side edge, and the base has an adapter port. The lower part has an open side edge. The glass microtube matrix is sealed at one end and open at the other end, and the open end passes through the lower part of the metal adapter and is partially located in the upper part. The cross section of the base of the metal adapter is the same as that of the glass microtube matrix, and the connecting gap between the side edge of the glass microtube matrix and the lower part of the metal adapter is filled with a glass encapsulation layer.

[0007] The outer surface of the glass microtube matrix is provided with a protective layer, and the protective layer is sealed between the lower part of the metal adapter and the glass encapsulation layer.

[0008] As a further preferred embodiment, the protective layer is a resin composite material mixed with short glass fibers.

[0009] As a further preferred solution, the metal adapter and the glass microtube matrix have a circular or polygonal cross-section.

[0010] As a further preferred solution, the material of the glass encapsulation layer is a low-temperature glass powder having a melting temperature of 300-500 DEG C.

[0011] As a further preferred solution, the material of the glass microtube matrix is a silicate glass or a quartz glass.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1、In glass hydrogen storage array namely glass microtube matrix and metal adapter between through low temperature glass carries out encapsulation bonding, improves the firmness of bonding and enhances the pressure resistance of hydrogen storage container.

[0014] 2、With the resin composite material of mixed short glass fiber constructs the protective layer, and carries out encapsulation protection measure to the glass microtube matrix surface.This method greatly enhances the impact resistance and pressure level of the matrix, ensures the stability and high efficiency of hydrogen storage under various complex working conditions.

[0015] 3、With the encapsulation and performance enhancement treatment of glass, the strength decay problem caused by resin material aging can be successfully avoided, the weather resistance of hydrogen storage container is significantly improved, so that it can still maintain good performance under the influence of different climate conditions and environmental factors, prolong the service life of hydrogen storage container.

[0016] 4、The device has the significant advantage of simple process, easy to implement and operate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the metal adapter connecting place schematic diagram of the utility model.

[0019] Among them: 1, metal adapter;2, glass encapsulation layer;3, glass microtube matrix;4, protective layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Embodiment one

[0022] As shown in Figure 1 and 2 The application provides a glass-encapsulated hydrogen storage container, which comprises a glass microtube matrix 3, a metal adapter 1, a glass encapsulation layer 2 and a protective layer 4. The metal adapter 1 is divided into an upper part and a lower part and is connected by screw threads or clamping. The upper part is composed of a base and a side edge, and the base is provided with an adapter port. The lower part is a side edge with open ends. The glass microtube matrix 3 is sealed at one end and has an open end penetrating through the lower part of the metal adapter 1 and partially located in the upper part. The cross section of the base of the metal adapter 1 is the same as that of the glass microtube matrix 3, which can be circular or polygonal. The glass encapsulation layer 2 is filled in the connecting gap between the side edge of the glass microtube matrix 3 and the lower part of the metal adapter 1.

[0023] Specifically, the glass microtube matrix 3 is made of silicate glass or quartz glass, which has high strength and strong compression resistance.

[0024] Specifically, the glass encapsulation layer 2 is made of low-temperature glass powder, and the melting temperature of the low-temperature glass powder is 300-500°C. It should be noted that the low-temperature glass powder has good fluidity in the molten state, can fully fill the gap of the hydrogen storage container, form a dense filling layer, effectively prevent hydrogen leakage, ensure the high gas tightness of the container, and the solidified low-temperature glass powder has high hardness and mechanical strength, which can enhance the overall structural strength of the container, make it more stable and reliable when bearing high-pressure hydrogen, reduce the risk of container deformation or damage caused by pressure, ensure the safety of the hydrogen storage process, and maintain good sealing and structural stability.

[0025] Further, the outer surface of the glass microtube matrix 3 is provided with a protective layer 4, which is a resin composite material mixed with short glass fibers. It should be noted that the strength of ordinary resin materials is relatively limited, and deformation, cracking and other problems may occur when subjected to large external forces. Glass fibers have high strength and high modulus, and after being combined with resin, the tensile strength, compressive strength and impact resistance of the material can be significantly improved. In addition, resin materials are easily affected by external environmental factors during long-term use and may age, such as discoloration, cracking, embrittlement and other phenomena, which reduces the performance and service life of the material. Glass fiber reinforced resin has good aging resistance and can maintain the stability of the material's performance for a long time, reducing the failure of the protective layer 4 caused by aging.

[0026] Specifically, the resin material can be epoxy resin or polyurethane.

[0027] Embodiment two

[0028] The glass-encapsulated hydrogen storage container comprises the following steps:

[0029] S1, first put the lower part of the metal adapter 1 in the special container, then put the glass micro tube matrix 3 made by several glass capillary tubes through hot drawing method in the metal adapter 1, fill the low temperature glass powder in the gap between the glass micro tube matrix 3 and the metal adapter 1;

[0030] S2, put the special container into the heating device and heat to the melting point of the low temperature glass powder, preferably 300-500℃. After the low temperature glass powder is completely melted and fills the gap between the metal adapter 1 and the glass micro tube matrix 3, keep warm for 20 min, then slowly reduce to room temperature;

[0031] S3, put the short glass fiber into the heating furnace and calcine for 15 min at 120℃ to remove the impurities on the surface, then put the short glass fiber into the container, add silane coupling agent into the container, the mass of the silane coupling agent is 0.1%-2% of the short glass fiber, put the container into the ultrasonic oscillation device and ultrasonic oscillate for 1 h, then heat the oscillated solution at 100℃ for 2 h; wash the heated short glass fiber with ethanol for 3 times and put it into the oven for drying;

[0032] S4, add epoxy resin into another container and continuously stir, slowly add the treated short glass fiber, the weight ratio of the resin to the short glass fiber is 7:3; ultrasonic stir the mixed solution for 30 min, after the short glass fiber is uniformly dispersed and the bubbles disappear, add resin curing agent into the solution and stir uniformly, the content of the curing agent can be 100:50, 100:30, 100:20;

[0033] S5, put the glass micro tube matrix 3 bonded with the metal adapter 1 upside down in the special container, slowly add the mixed short glass fiber resin composite material in S4 into the container and put it into the oven and heat at 60℃ for 6 h;

[0034] S6, finally connect the upper and lower parts of the metal adapter 1.

[0035] The preferred embodiments of the present application are described in detail above, but the present application is not limited to the specific details in the above embodiments, and various equivalent transformations can be made to the technical solutions of the present application within the technical concept of the present application, and these equivalent transformations all belong to the protection scope of the present application.

Claims

1. A glass encapsulated hydrogen storage container, characterized by: It comprises a glass microtube matrix (3), a metal adapter (1), a glass sealing layer (2) and a protective layer (4), the metal adapter (1) is divided into upper and lower parts, the upper and lower parts are connected by screw threads or clamped, the upper part is composed of a base and a side edge, the base is provided with an adapter port, the lower part is a side edge with two open ends, one end of the glass microtube matrix (3) is sealed and the other end is open and penetrates through the lower part of the metal adapter (1) and partially located in the upper part, the cross section of the base of the metal adapter (1) is the same as that of the glass microtube matrix (3), the side edge of the glass microtube matrix (3) is filled with the glass sealing layer (2) in the connecting gap of the lower part of the metal adapter (1). The outer surface of the glass microtube matrix (3) is provided with the protective layer (4), the protective layer (4) is sealed between the lower part of the metal adapter (1) and the glass sealing layer (2).

2. A glass encapsulated hydrogen storage container according to claim 1, wherein: The protective layer (4) is a resin composite material mixed with short glass fibers.

3. The glass encapsulated hydrogen storage container of claim 1, wherein: The cross section of the metal adapter (1) and the glass microtube matrix (3) is circular or polygonal.

4. The glass encapsulated hydrogen storage container of claim 1, wherein: The material of the glass sealing layer (2) is low-temperature glass powder, the melting temperature of the low-temperature glass powder is 300-500 ℃.

5. The glass encapsulated hydrogen storage container of claim 1, wherein: The material of the glass microtube matrix (3) is silicate glass or quartz glass.

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