TWM610087U - Gas storage cylinder with fire-proof and heat-resistant layer - Google Patents

Abstract

This creation provides a gas cylinder with a fireproof and heat-resistant layer, which includes a body body, two vent ports, and a fireproof and heat-resistant layer; wherein the body body has an outer surface and an inner surface, and the body body has an outer surface and an inner surface. The inner surface of the bottle body forms an accommodating space; the two vent ports are respectively connected to opposite ends of the bottle body; the fire and heat resistance layer is arranged on the outer surface of the bottle body; wherein the fire and heat resistance The layer contains a plurality of hollow glass spheres. The gas storage bottle with a fireproof and thermal resistance layer can delay the destruction of the bottle body structure, and has good safety in use.

Description

Gas storage cylinder with fire-proof and heat-resistant layer

This creation is about a gas cylinder, especially a gas cylinder used to store high-pressure gas.

At present, the main means of transportation use traditional fossil energy such as oil and coal. For the convenience of daily life, the use of transportation tools has grown substantially, but it has also been accompanied by environmental problems. For example, the exhaust gas emitted by the internal combustion engine of a car in the case of high-temperature combustion and incomplete combustion will increase the greenhouse effect and cause global warming, and the ultrafine suspended particulates (PM2.5) produced after combustion will reduce the air quality. At the same time, it is harmful to human health. As energy shortages and environmental damage have become important issues, the habit of relying on fossil energy is being reversed. Therefore, the development of electric vehicles and hydrogen fuel cell vehicles has become a promising future trend. Compared with the shortcomings of long charging time and short battery life of electric vehicles, although hydrogen fuel cells are more costly and have fewer hydrogen refueling stations, their use methods are closer to the habits of users of traditional internal combustion engine vehicles; especially when driving long distances. The development of heavy vehicles such as large buses and trucks and hydrogen fuel cell vehicles is still in the ascendant. In the hydrogen fuel cell, hydrogen is used as the fuel to supply the anode of the fuel cell, but because hydrogen itself is flammable and explosive, the key factors for the smooth promotion of hydrogen fuel cells are the storage safety and transportation of hydrogen. safety.

At present, hydrogen storage methods can be divided into gaseous hydrogen storage, liquid hydrogen storage and solid hydrogen storage, and each has its own advantages and disadvantages in terms of hydrogen storage capacity, cost, ease of operation, safety, and technological maturity; among them, the technology is mature Although the high-pressure gaseous hydrogen storage method has potential safety hazards, it still occupies the mainstream of the development of hydrogen fuel cell vehicles due to its low cost and convenient transportation. Generally speaking, the gas cylinder for storing hydrogen and other gases is wound by metal or carbon fiber to form the main body of the bottle. In order to reduce the risk that gas cylinders containing flammable gas will be burned in unexpected situations during use, which will damage the structure of the gas cylinder and detonate the flammable gas, many studies have focused on improving the gas storage. The body material of the bottle or the material winding structure of the bottle body. However, the aforementioned method not only complicates the manufacturing process, but may also increase the manufacturing cost, which is not conducive to market development.

Therefore, if the existing gas cylinder structure can be used as the basis to achieve the purpose of delaying the ignition of the gas cylinder, preventing the continuous spread of the fire, or increasing the thermal insulation to delay the destruction of the cylinder body structure of the gas cylinder, not only can it be achieved In order to protect the personnel on the scene, they can obtain a longer response time for the escape or disaster relief, which can also help the promotion of hydrogen fuel cell vehicles and create an energy-saving society.

In view of the technical defects of the above-mentioned existing gas cylinders, the purpose of this creation is to provide a gas cylinder with a fire and heat resistance layer, which can delay the destruction of the cylinder body structure of the gas cylinder and has good use safety.

Another purpose of this creation is to provide a gas cylinder with a fireproof and thermal resistance layer, which has the advantages of simple manufacturing process and lower manufacturing cost, and furthermore has the development potential of commercial products, which is helpful for the promotion of hydrogen fuel cell vehicles.

In order to achieve the foregoing objective, this creation provides a gas cylinder with a fireproof and heat-resistant layer, which includes a body body, two vent ports, and a fireproof and heat-resistant layer; wherein the body body has an outer surface and an inner surface , The inner surface of the bottle body forms an accommodating space; the two vent ports are respectively connected with opposite ends of the bottle body; the fire and heat resistance layer is arranged on the outer surface of the bottle body; wherein , The fire and heat resistance layer contains a plurality of hollow glass balls.

In the gas cylinder with a fireproof and heat-resistant layer of this creation, since the fireproof and heat-resistant layer contains a plurality of hollow glass balls evenly dispersed therein, the layer provided on the outer surface of the body of the bottle body can have a good Thermal barrier, so it can delay the time of the main body of the gas cylinder on fire and prevent the fire from spreading, so it can improve the safety of the gas cylinder; even if the gas cylinder is eventually destroyed due to continuous high-temperature combustion, this creation The gas cylinder with fire and heat resistance layer can also delay the damage of the gas cylinder, and strive for a longer reaction time so that the on-site personnel have enough time to escape or increase the chance of being rescued.

According to this creation, the fire-proof and heat-resistant layer is formed by a fire-proof and heat-resistant resin composition; the fire-proof and heat-resistant resin composition includes a resin, a curing agent and the hollow glass balls. In this creation, there is no particular limitation on the method of forming the fire-resistant and heat-resistant resin composition. For example, the method of curing the fire-resistant and heat-resistant resin composition may be UV irradiation or infrared irradiation ( IR irradiation), hot air curing, room temperature static curing, etc., but not limited to this. Preferably, the fireproof and heat-resistant layer is formed by the aforementioned fireproof and heat-resistant resin composition through a hot-air curing method.

Preferably, the content of the hollow glass spheres is 15% by weight (wt%) to 40% by weight based on the total solid content of the fire and heat resistance resin composition. More preferably, based on the total weight of the fire-resistant and heat-resistant resin composition, the content of the hollow glass spheres is 15 wt% to 35 wt%; still more preferably, the content of the hollow glass spheres is 18 wt% To 30 wt%. Since the above content is based on the total solid content of the fire-resistant and heat-resistant resin composition, the content ratio of the hollow glass balls in the formed fire-resistant and heat-resistant layer is also approximately the same.

According to this creation, the average particle size refers to the particle size when the cumulative particle size distribution percentage reaches 50% in the statistics of the particle size distribution percentage of the hollow glass spheres. Preferably, the average particle size of the hollow glass spheres is 30 micrometers (µm) to 120 µm. More preferably, the average particle size of the hollow glass spheres is 40 µm to 105 µm. Specifically, the average particle size of the hollow glass spheres may be 35 µm, 45 µm, 50 µm, 55 µm, 60 µm, 70 µm, but is not limited thereto.

Preferably, the hollow glass sphere has a thermal conductivity of 0.05 W/(m·K) to 0.15 W/(m·K). More preferably, the hollow glass spheres have a thermal conductivity of 0.07 W/(m·K) to 0.13 W/(m·K).

According to the invention, the resin is not particularly limited. In some embodiments, the fire and heat resistance resin composition may also contain different resins at the same time. Preferably, the resin includes polyurethane resin or epoxy resin, but is not limited thereto. Specifically, the epoxy resin is a novolac epoxy resin, and the novolac epoxy resin may have better flame-retardant properties, higher bonding strength, and better mechanical properties.

According to this creation, the curing agent is not particularly limited, as long as it can cure the resin; preferably, the curing agent includes isocyanate curing agents, amine curing agents, acid anhydride curing agents, imidazole curing agents, Phenolic resin curing agent or a combination thereof. In some embodiments, the fire and heat resistance resin composition may contain different types of curing agents at the same time, for example, a combination of two different isocyanate curing agents, a combination of two different amine curing agents, or one The combination of isocyanate curing agent and monoamine curing agent, but not limited to this.

Preferably, the weight ratio of the resin to the curing agent is 100:20 to 100:75. More preferably, the weight ratio of the resin to the curing agent is 100:30 to 100:60.

In the range that does not affect the effect of the creation, the fire and heat resistance resin composition can also be appropriately added with thickeners, colorants, fillers, wetting agents and other auxiliary agents as required, but it is not limited thereto. Specifically, the addition of thickeners can further improve product stability or phase uniformity; or, if appropriate fillers, such as silica, are added, silica can not only adjust the contact of the fire and heat resistance resin composition. It can change its properties, and at the same time can increase the heat resistance performance of the fire-resistant heat-resistant layer made by it; in addition, the colorant can be used in accordance with the requirements, so that the fire-resistant heat-resistant layer formed by the fire-resistant heat-resistant resin composition presents consumers' desires. In addition, the wetting agent can reduce the interfacial tension of the fire and heat resistance resin composition, which is conducive to the flatness of the coating.

Preferably, the thickness of the fire and heat resistance layer is 2.0 millimeters (mm) to 10.0 mm, and more preferably, the thickness of the fire and heat resistance layer is 7.0 mm to 10.0 mm.

Preferably, the material of the bottle body includes carbon fiber, metal, glass fiber or a combination thereof, but is not limited thereto. For example, the metal may include stainless steel or aluminum alloy, but is not limited thereto. In some embodiments, the bottle body may include a multilayer structure, for example, the bottle body has a double-layer structure, wherein the inner layer is a metal layer and the outer layer is a carbon fiber layer.

In some embodiments, the gas storage bottle further includes a lead-out element that can assist the flow of gas in the bottle. For example, the lead-out element can include a pressure reducing valve, a nozzle, a pipe, etc., but is not limited thereto. The outlet elements can be respectively connected with the two vent ports.

Specifically, the gas cylinder may have a cylindrical shape or any desired shape.

According to this creation, the gas cylinder can be used to contain hydrogen and other gases, and can also be used to contain liquid compressed from the gas, but it is not limited to this.

Preferably, the gas cylinder may further include an impact-resistant film to increase the impact resistance of the gas cylinder and further improve the storage safety and transportation safety of the gas cylinder. In some embodiments, the impact-resistant film is disposed on the fire-resistant heat-resistant layer, that is, the gas cylinder is the body of the bottle, the fire-resistant heat-resistant layer, and the impact-resistant layer from the inside to the outside. membrane. In other embodiments, the impact-resistant film is provided between the fire and heat-resistant layer and the outer surface of the bottle body, that is, the impact-resistant film is provided on the outer surface of the bottle body. The gas cylinder is the main body of the bottle body, the impact resistant film, and the fire and heat resistance layer in order from the inside to the outside.

Preferably, the gas cylinder may further include a decorative layer, and the decorative layer may be disposed on the outermost side of the gas cylinder; for example, the side wall of the gas cylinder is formed by the body of the cylinder, the fire and heat resistance layer, and When the decoration layer is constituted, the decoration layer is arranged on the outer surface of the fire and heat resistance layer. The decorative layer may be a design containing trademarks, words, etc., which are transferred and attached to the outer surface of the fire and heat resistance layer.

The following is an example to illustrate the implementation of this creation. Those who are familiar with this technique can easily understand the advantages and effects of this creation through the content of this manual, and make various modifications and changes without departing from the spirit of this creation. , In order to implement or apply the content of this creation.

Example 1 :

Fire and heat resistance resin composition

First, the resin and curing agent are divided into A agent and B agent. In agent A, put 100 parts by weight of resin into a container; wherein, the resin is bisphenol A low-viscosity epoxy resin (commodity model: EK-115) with an epoxy equivalent of 188; then, add A suitable amount of thickener, colorant and hollow glass spheres, wherein the average particle size of the hollow glass spheres is between 40 µm and 90 µm. In addition, in the B agent, put 50 parts by weight of the amine curing agent in another container, where the amine curing agent is a polyamide curing agent (commodity model: HY-825); then, add Appropriate amount of thickeners, colorants and hollow glass spheres, wherein the average particle size of the hollow glass spheres is also between 40 µm and 90 µm. Next, mix A and B to form a fireproof and heat-resistant resin composition, and continue stirring until a uniformly mixed paste is formed; wherein, based on the total solid content of the fireproof and heat-resistant resin composition, The content of the hollow glass balls is 25 wt%; and the weight ratio of the resin and the amine curing agent is 100:50.

Gas cylinder

First, prepare a cylindrical container with an interface at the top and bottom, respectively. The body of the container has an outer surface and an inner surface. The body of the bottle has a double-layer structure, and its material includes an aluminum alloy inner layer and an inner surface. Carbon fiber is wound around the outer layer. Then, the fire-proof and heat-resistant resin composition of Example 1 was uniformly coated on the outer surface of the body of the container to form a coating; then, the coating was dried with hot air at a temperature of 80°C, Get a gas cylinder 1. 1 and 2, the gas cylinder 1 includes a body body 10, two vent ports 11 and a fire and heat resistance layer 20; wherein the body body 10 has an inner surface 101 and an outer surface 102, and the body The inner surface 101 of the main body 10 forms an accommodating space 30; the two vent ports 11 are respectively connected to opposite ends of the bottle body 10; the fire and heat resistance layer 20 is disposed on the outer surface of the bottle body 10 102 on; wherein, based on the total weight of the fire-resistant heat-resistant layer 10, the fire-resistant heat-resistant layer 20 contains about 25 wt% of a plurality of hollow glass spheres, the average particle size of the hollow glass spheres is between 40 µm to 90 µm, and the hollow glass balls are evenly dispersed in the fire and heat resistance layer 10.

"Analysis of the characteristics of fire-resistant thermal layer"

In order to test the heat resistance capacity of the fire-resistant heat-resistant layer, the fire-resistant heat-resistant resin composition of Example 1 was also coated on a polyethylene release film to form a coating, and the same was baked at a temperature of 80°C. After the coating is completely cured for 30 minutes, a fire-resistant and heat-resistant layer 1A can be obtained; wherein the average thickness of the fire-resistant and heat-resistant layer 1A is also 7 mm.

First, first fix the fire-resistant heat-resistant layer 1A on a fixing frame, and then perform a fire-proof test on the fire-resistant heat resistance layer 1A with a Bunsen burner at room temperature. The method of fire protection test is as follows: fix the fire resistance heat layer horizontally on a fixed frame; the fire source is vertically arranged directly under the fire resistance heat resistance layer, and the fire source and the outer surface of the fire resistance heat resistance layer (that is, the fire resistance heat resistance layer) The distance between the layer near the fire source) is 20 mm, and the flame height is about 20 mm. The fire source uses a blue inner flame to heat the outer surface of the fire resistance and heat resistance layer, and the temperature of the fire source is 700° C. In addition, a temperature sensor is attached to the inner surface of the fireproof heat resistance layer (that is, the side of the fireproof heat resistance layer away from the fire source, which is equivalent to the fireproof heat resistance that contacts the outer surface of the main body of the gas cylinder). The surface of the layer), continuously measure the temperature of the inner surface of the fire and heat resistance layer. When the fire source starts to heat the fire-resistant heat-resistant layer, a timer is started until the temperature of the inner surface of the fire-resistant heat-resistant layer reaches 200°C, and the required heating time is recorded. According to the test, it takes 9 minutes and 24 seconds for the temperature of the inner surface of the fireproof thermal resistance layer 1A to reach 200°C. Because the fireproof and heat-resistant layer 1A and the fireproof and heat-resistant layer 20 of the gas cylinder 1 are both prepared from the fire-resistant and heat-resistant resin composition of Example 1, and the forming method of the two is the same as the average thickness of the resulting fire-resistant and heat-resistant layer Therefore, it can be inferred that the temperature of the inner surface of the fireproof and heat-resistant layer 20 of the gas cylinder 1 under the same fireproof test method should also take 9 minutes and 24 seconds to reach 200°C.

From the results of the above performance analysis, it is obvious that the fire-resistant heat-resistant layer prepared in Example 1 can have excellent fire-resistant and heat-resistant effects. Based on this, it can be seen that the gas cylinder with the fire-resistant and heat-resistant layer of this creation must provide sufficient protection When the gas cylinder encounters an impact, high temperature or other accidents, the fire and thermal resistance layer it has can help delay the ignition time of the gas cylinder and delay the time for the structure of the gas cylinder to be destroyed, thereby Gain a longer response time for the escape or disaster relief of on-site personnel, and at the same time ensure that the gas storage cylinder can have higher transportation safety and storage safety when the hydrogen is used in the hydrogen fuel cell, which is helpful for hydrogen fuel Promotion of battery cars.

The above-mentioned embodiments are just examples for the convenience of explanation, but the implementation is not intended to limit the scope of patent application of this creation; all other changes, modifications and other changes completed without departing from the content of this creation disclosure should be included in This creation covers the scope of patents.

1: gas cylinder 10: The main body of the bottle 101: inner surface 102: outer surface 11: Ventilation interface 20: Fire and heat resistance layer 30: accommodating space

Figure 1 is a three-dimensional schematic diagram of the created gas cylinder; Figure 2 is a schematic cross-sectional front view of the created gas cylinder.

1: gas cylinder

10: The main body of the bottle

101: inner surface

102: outer surface

11: Ventilation interface

20: Fire and heat resistance layer

30: accommodating space

Claims (15)

A gas storage bottle with a fireproof and heat-resistant layer, which comprises a body body, two vent ports, and a fire-proof and heat-resistant layer; wherein the body body has an outer surface and an inner surface, and the inner surface of the body body An accommodating space is formed; the two air vents are respectively connected to opposite ends of the bottle body; the fire and heat resistance layer is arranged on the outer surface of the bottle body; wherein, the fire and heat resistance layer includes a plurality of Hollow glass ball. The gas cylinder with a fire-proof and heat-resistant layer according to claim 1, wherein, based on the total weight of the fire-proof and heat-resistant layer, the content of the hollow glass balls is 15% to 40% by weight. The gas cylinder with a fire and heat resistance layer as described in claim 2, wherein the average particle diameter of the hollow glass spheres is 30 micrometers to 120 micrometers. The gas cylinder with a fire and heat resistance layer according to claim 2, wherein the thermal conductivity of the hollow glass balls is 0.05 W/(m·K) to 0.15 W/(m·K). The gas cylinder with a fire-proof and heat-resistant layer according to claim 3, wherein the thermal conductivity of the hollow glass balls is 0.05 W/(m·K) to 0.15 W/(m·K). The gas cylinder with a fire and heat resistance layer according to claim 1, wherein the fire and heat resistance layer is formed of a fire and heat resistance resin composition; the fire and heat resistance resin composition includes a resin and a curing agent And the hollow glass balls; wherein, based on the total solid content of the fire and heat resistance resin composition, the content of the hollow glass balls is 15 to 40 weight percent. The gas cylinder with a fire and heat resistance layer according to claim 6, wherein the average particle diameter of the hollow glass spheres is 30 micrometers to 120 micrometers. The gas cylinder with a fire and heat resistance layer according to claim 6, wherein the thermal conductivity of the hollow glass balls is from 0.05 W/(m·K) to 0.15 W/(m·K). The gas cylinder with a fireproof and heat-resistant layer according to any one of claims 5 to 8, wherein the fireproof and heat-resistant resin composition further comprises a thickener, a colorant, a filler, a wetting agent, or a combination thereof. The gas cylinder with a fireproof and heat-resistant layer according to any one of claims 1 to 8, wherein the thickness of the fireproof and heat-resistant layer is 2.0 mm to 12.0 mm. The gas cylinder with a fire-proof and heat-resistant layer according to claim 10, wherein the thickness of the fire-proof and heat-resistant layer is 5.0 mm to 10.0 mm. The gas cylinder with a fireproof and heat-resistant layer according to any one of claims 1 to 8, wherein the material of the body of the bottle includes carbon fiber, metal, glass fiber or a combination thereof. The gas cylinder with a fire and heat resistance layer according to claim 10, wherein the material of the body of the bottle includes carbon fiber, metal, glass fiber or a combination thereof. The gas cylinder with a fireproof and heat-resistant layer according to any one of claims 1 to 8, wherein the gas bottle further includes an impact-resistant film, and the impact-resistant film is disposed on the fire and heat-resistant layer. The gas cylinder with a fireproof and heat-resistant layer according to any one of claims 1 to 8, wherein the gas cylinder further includes an impact-resistant film, and the impact-resistant film is disposed on the fireproof and heat-resistant layer and the bottle Between the outer surface of the body.

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