A bottle valve used in high-pressure hydrogen supply system

Abstract

The present invention provides a bottle valve for a high-pressure hydrogen supply system, comprising a first pipeline, a first inlet / outlet, a second inlet / outlet, a third inlet / outlet, a temperature sensor, a relief valve, a first filter, a second filter, a first manual stop valve, a second manual stop valve, an electromagnetic one-way valve, a bottle body, a bottle valve body, a second pipeline, a third pipeline and a fusible plug relief valve; the present invention facilitates the deflation during daily repair and maintenance of the hydrogen supply system, and at the same time reduces the use of tees and pipe accessories when multiple hydrogen supply systems are used.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen vehicles, and in particular to a bottle valve used in a high-pressure hydrogen supply system. Background Art

[0002] As living standards improve, the number of cars on the road increases, and environmental issues also attract widespread attention. Consequently, the automotive industry is actively promoting reforms and promoting new energy vehicles. Hydrogen fuel cell vehicles, a key example of new energy vehicles, directly convert chemical energy into electrical energy through the reaction of hydrogen and oxygen. Their high efficiency and near-zero emissions make them widely recognized as promising for development worldwide. Fuel cell vehicles use hydrogen as fuel, which must be stored onboard to ensure a stable supply tailored to the vehicle's needs. Therefore, the use of reliable fuel cell valves is crucial.

[0003] This invention provides a highly integrated cylinder valve for high-pressure hydrogen supply systems. This valve integrates a filter, electromagnetic check valve, manual shut-off valve, relief valve, fusible protection device (TPRD), and temperature sensor. This valve facilitates venting during routine repair and maintenance of the hydrogen supply system and reduces the need for tees and pipe fittings when using multiple cylinder hydrogen supply systems. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a highly integrated bottle valve for use in a high-pressure hydrogen supply system, comprising a first pipeline, a first inlet / outlet, a second inlet / outlet, a third inlet / outlet, a temperature sensor, a relief valve, a first filter, a second filter, a first manual stop valve, a second manual stop valve, an electromagnetic one-way valve, a bottle body, a bottle valve body, a second pipeline, a third pipeline, and a fusible plug discharge valve;

[0005] A first pipeline is provided at the root of the bottle valve body, i.e., the connection point with the bottle body; a first inlet / outlet, a relief valve, a second filter, an electromagnetic one-way valve, a first manual stop valve, and a first filter are sequentially provided on the first pipeline;

[0006] A second pipeline is provided at the connection between the bottle valve main body and the bottle body, a second manual stop valve is installed on the second pipeline, and a fusible plug discharge valve is installed on the branch of the second pipeline;

[0007] The first filter is connected to the second inlet / outlet and the third inlet / outlet respectively arranged on the left and right sides of the top of the bottle valve body through a third pipeline;

[0008] A temperature sensor is provided inside the bottle valve body, and the third pipeline is communicated with the second pipeline.

[0009] The technical solution provided by the present invention has the beneficial effects of facilitating the deflation of the hydrogen supply system during daily repair and maintenance, and reducing the use of tees and pipe accessories when multiple hydrogen supply systems are used. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural diagram of a bottle valve used in a high-pressure hydrogen supply system according to the present invention. DETAILED DESCRIPTION

[0011] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0012] Please refer to Figure 1 The present invention provides a bottle valve for a high-pressure hydrogen supply system, comprising a first pipeline 1, a first inlet / outlet 2, a second inlet / outlet 3, a third inlet / outlet 4, a temperature sensor 5, a relief valve 6, a first filter 7, a second filter 10, a first manual stop valve 8, a second manual stop valve 13, an electromagnetic one-way valve 9, a bottle body 11, a bottle valve body 14, a second pipeline 15, a third pipeline 16, and a fusible plug discharge valve 12;

[0013] A first pipeline 1 is provided at the root of the bottle valve body 14, i.e., at the connection with the bottle body 11; a first inlet / outlet 2, a relief valve 6, a second filter 10, an electromagnetic one-way valve 9, a first manual stop valve 8, and a first filter 7 are sequentially provided on the first pipeline 1;

[0014] A second pipeline 15 is provided at the connection between the bottle valve main body 14 and the bottle body 11 , a second manual stop valve 13 is installed on the second pipeline 15 , and a fusible plug discharge valve 12 is installed in a branch of the second pipeline 15 ;

[0015] The first filter 7 is connected to the second inlet / outlet 3 and the third inlet / outlet 4 respectively provided on the left and right sides of the top of the bottle valve body 14 through the third pipeline 16;

[0016] A temperature sensor 5 is provided inside the bottle valve body 14 , and the third pipeline 16 is connected to the second pipeline 15 .

[0017] The first manual stop valve 8 is a normally open stop valve, and the second manual stop valve 13 is a normally closed stop valve.

[0018] The first pipeline 1 forms an angle α with the cylinder body 11, 10°≤α≤30°, and guides the airflow to rotate when the cylinder is inflated to avoid forming hot spots when the cylinder is inflated.

[0019] The filter 10 is a main filter with an accuracy of 10 μm and is used to filter impurities carried by the external gas source. The first filter 7 is an auxiliary filter with a lower filtering accuracy than the main filter and is used to filter impurities generated in the gas cylinder.

[0020] The rear end of the fusible plug relief valve 12 adopts a double-channel form. When the hydrogen supply system uses multiple cylinders, the fusible plug relief valves 12 of each cylinder are directly connected by pipelines, reducing the use of tees.

[0021] The cylinder valve body 14 adopts gas inlet and outlet channels at both ends. When multiple cylinders are used, the cylinder valves on each cylinder are directly connected through the inlet and outlet, reducing the use of system tees.

[0022] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bottle valve used in a high-pressure hydrogen supply system, characterized in that: The invention comprises a first pipeline (1), a first inlet / outlet (2), a second inlet / outlet (3), a third inlet / outlet (4), a temperature sensor (5), a relief valve (6), a first filter (7), a second filter (10), a first manual stop valve (8), a second manual stop valve (13), an electromagnetic one-way valve (9), a bottle body (11), a bottle valve body (14), a second pipeline (15), a third pipeline (16), and a fusible plug discharge valve (12); A first pipeline (1) is provided at the root of the bottle valve body (14), i.e., at the connection with the bottle body (11); a first inlet / outlet (2), a relief valve (6), a second filter (10), an electromagnetic one-way valve (9), a first manual stop valve (8), and a first filter (7) are sequentially provided on the first pipeline (1); A second pipeline (15) is provided at the connection between the bottle valve main body (14) and the bottle body (11), a second manual stop valve (13) is installed on the second pipeline (15), and a fusible plug discharge valve (12) is installed on the branch of the second pipeline (15); The first filter (7) is connected to a second inlet / outlet (3) and a third inlet / outlet (4) respectively arranged on the left and right sides of the top of the bottle valve body (14) through a third pipeline (16); A temperature sensor (5) is provided inside the bottle valve body (14), and the third pipeline (16) is connected to the second pipeline (15); The first pipeline (1) forms an angle α with the cylinder body (11), 10°≤α≤30°, and guides the air flow to rotate when the cylinder is inflated to avoid forming hot spots when the cylinder is inflated; The rear end of the fusible plug relief valve (12) adopts a double flow channel form. When the hydrogen supply system uses multiple cylinders, the fusible plug relief valves (12) of each cylinder are directly connected by pipelines, reducing the use of tees.

2. The bottle valve used in a high-pressure hydrogen supply system according to claim 1, characterized in that: The first manual stop valve (8) is a normally open stop valve, and the second manual stop valve (13) is a normally closed stop valve.

3. The bottle valve used in a high-pressure hydrogen supply system according to claim 1, characterized in that: The second filter (10) is a main filter with a precision of 10 μm and is used to filter impurities carried by the external gas source. The first filter (7) is an auxiliary filter with a lower filtering precision than the main filter and is used to filter impurities generated in the gas cylinder.

4. The bottle valve used in a high-pressure hydrogen supply system according to claim 1, characterized in that: The cylinder valve body (14) adopts gas inlet and outlet channels at both ends. When multiple cylinders are used, the cylinder valves on each cylinder are directly connected through the second inlet / outlet (3) and the third inlet / outlet (4), reducing the use of system tees.

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