Hydrogen combination bottle valve integrated with 70mpa filler neck

Abstract

The utility model discloses a kind of hydrogen combination bottle valves of integrated 70MPa filling port, comprising: valve body, the lower part of the valve body is provided with bottle mouth connecting end and valve body is fixedly connected between bottle mouth connecting end and gas cylinder, the side of the valve body is provided with filling connector and filling connector and the high-pressure passage in the inside of valve body are connected, the inside of bottle mouth connecting end is provided with air inlet pipe.The utility model directly integrates 70MPa filling port in valve body, user can directly hydrogen without disassembling gas cylinder, greatly improve the convenience of use, solve the key pain point of hydrogen bicycle popularization, integrated design saves additional connecting pipeline and joint, significantly reduce overall volume and weight, perfect fit the harsh requirement of installation space of hydrogen bicycle, reduce potential leakage point, combined with built-in safety pressure relief device, temperature and pressure sensor, constitute multiple safety protection, ensure the system safety under frequent filling and use.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen filling combined bottle valve technical field, more specifically to a kind of hydrogen combined bottle valve integrated 70MPa filling port. BACKGROUND

[0002] With the maturity and diversification development of hydrogen energy industry, the application of hydrogen storage system is gradually expanding from large hydrogen fuel cell commercial vehicles and passenger vehicles to small and portable fields, especially in the field of "hydrogen bicycle" (such as hydrogen energy two-wheeled vehicle, three-wheeled distribution vehicle, etc.), which shows broad prospects. This change brings changes in hydrogen storage technology paradigm: the system evolves from multiple bottles to a single bottle, the installation space of gas cylinder is more compact, and the use scenario is closer to individual consumers.

[0003] The hydrogen cylinder valve in the prior art is designed for vehicle-mounted multi-bottle system, and there is no concept of integrated filling port, which is difficult to be directly applied to hydrogen bicycle. Therefore, a new technical solution is needed to solve the problem. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of hydrogen combined bottle valve integrated 70MPa filling port, solve the current, due to the limitation of vehicle body structure and cost consideration, most vehicle models are not integrated with fixed filling interface, and users or service personnel need to disassemble the gas cylinder from the vehicle body, and transport it to hydrogen filling station or bottle replacement station for filling or replacement.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of hydrogen combined bottle valve integrated 70MPa filling port, comprising: valve body, the lower part of the valve body is provided with bottle mouth connecting end and the valve body is fixedly connected between bottle mouth connecting end and gas cylinder, the side surface of the valve body is provided with filling connector and the filling connector is connected with the high-pressure passage in the valve body, the inside of the bottle mouth connecting end is provided with inlet pipe and the inlet pipe extends into the gas cylinder inside the valve body, electromagnetic valve and hand-operated stop valve are arranged on the opposite side of the filling connector, and the electromagnetic valve and hand-operated stop valve are connected on the main gas flow passage and the hand-operated stop valve and electromagnetic valve are installed in sequence along the gas flow direction.

[0006] As a preferred embodiment of the utility model, a safety pressure relief device is arranged on the side surface of the filling connector, and a temperature sensing element is arranged in the pressure relief device.

[0007] As a preferred embodiment of the utility model, a pressure sensor is arranged on the side surface of the valve body, and the detection end of the pressure sensor is connected with the inner cavity of the hydrogen cylinder.

[0008] As a preferred embodiment of the utility model, a temperature sensor is arranged on the bottom of the valve body, and the detection end of the temperature sensor is connected with the inner cavity of the hydrogen cylinder.

[0009] As a preferred embodiment of the utility model, the filling connector is a quick plug-in interface meeting the 70MPa high-pressure hydrogen filling standard.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model discloses the filling port is integrated in the valve body side part, and is designed as the quick plug-in interface suitable for 70MPa high-pressure hydrogen filling. Its inside is equipped with double sealing ring and filter screen, and has the quick connection mechanism matched with the standard 70MPa filling gun, ensures the high sealing property and dustproof ability of filling process, the valve body is the integrated compact structure, adopts aluminum alloy material to manufacture, its inside is processed with high-pressure channel, directly connects the filling port with the gas cylinder inside, maximumly reduces external pipeline connection. The bottle mouth connecting end is located at the valve body bottom, is used for fixed connection with the hydrogen cylinder bottle mouth, the air inlet pipe extends from the valve body inside, and extends into the gas cylinder inside, is used for hydrogen inflow / outflow gas cylinder, and the pressure sensor is embedded in the high-pressure channel of the valve body inside, is used for real-time monitoring the pressure of hydrogen in the bottle. The manual stop valve and solenoid valve are integrated on the gas passage of the valve body, are used for controlling the on-off of the gas flow from the filling connector to the hydrogen cylinder inside, and the safety pressure relief device is installed on the valve body, and its discharge port is aligned to the safe direction, starts automatically and discharges the gas in the bottle when sensing the abnormally high temperature, directly integrates 70MPa filling port in the valve body, and the user can directly hydrogenate without disassembling the gas cylinder, greatly improves the convenience of use, solves the key pain point of hydrogen bicycle popularization, the integrated design saves the additional connecting pipeline and connector, significantly reduces the overall volume and weight, perfectly fits the harsh requirement of the installation space of hydrogen bicycle, reduces the potential leakage point, combines the built-in safety pressure relief device, temperature and pressure sensor, constitutes multiple safety protection, ensures the system safety under frequent filling and use, simplifies the system structure, reduces the number of parts and assembly complexity, is favorable to large-scale production, reduces the cost of single piece. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is overall structure schematic diagram of the utility model;

[0013] Figure 2 It is hydrogenation route structure schematic diagram of the utility model.

[0014] In the drawing: 1, valve body;2, bottle mouth connecting end;3, manual stop valve;4, solenoid valve;5, safety pressure relief device;6, pressure sensor;7, air inlet pipe;8, filling connector;9, temperature sensor. DETAILED DESCRIPTION

[0015] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0016] Please refer to Figures 1-2 The present application provides a technical solution: a hydrogen combination bottle valve integrated with a 70MPa filling port, comprising: a valve body 1, the lower part of the valve body 1 is provided with a bottle port connecting end 2, and the valve body 1 is fixedly connected with the gas cylinder through the bottle port connecting end 2, the side surface of the valve body 1 is provided with a filling connector 8, and the filling connector 8 is connected with the high-pressure channel in the valve body 1, the inside of the bottle port connecting end 2 is provided with an air inlet pipe 7, and the air inlet pipe 7 extends into the gas cylinder from the inside of the valve body 1, the opposite side of the filling connector 8 is provided with an electromagnetic valve 4 and a manual stop valve 3, the electromagnetic valve 4 and the manual stop valve 3 are connected on the main gas flow channel and the manual stop valve 3 and the electromagnetic valve 4 are installed in sequence along the gas flow direction, the filling port is integrated on the side of the valve body 1, and the design is suitable for the quick plug-in interface of 70MPa high-pressure hydrogen filling. Its inside is provided with double sealing rings and filter screens, and has a quick connection mechanism matched with a standard 70MPa filling gun, which ensures the high sealing performance and dustproof ability of the filling process, the valve body 1 is an integrated compact structure, which is made of aluminum alloy material, and has a high-pressure channel processed inside, which directly connects the filling port and the inside of the gas cylinder, and minimizes the external pipeline connection. The bottle port connecting end 2 is located at the bottom of the valve body 1 and is used for fixedly connecting with the hydrogen cylinder port; the air inlet pipe 7 extends from the inside of the valve body 1 and extends into the inside of the gas cylinder, which is used for hydrogen inflow / outflow of the gas cylinder; the pressure sensor 6 is embedded in the high-pressure channel in the inside of the valve body 1 and is used for real-time monitoring of the pressure of hydrogen in the bottle. The manual stop valve 3 and the electromagnetic valve 4 are integrated on the gas passage of the valve body 1 and are used for controlling the on-off of the gas flow from the filling connector 8 to the inside of the hydrogen cylinder; the safety pressure relief device 5 is installed on the valve body 1, the discharge port of which is aligned in the safe direction, and when an abnormally high temperature is sensed, it is automatically started and releases the gas in the bottle. By directly integrating the 70MPa filling port into the valve body 1, the user can directly add hydrogen without disassembling the gas cylinder, which greatly improves the convenience of use, solves the key pain points of hydrogen bicycle popularization, the integrated design saves additional connecting pipelines and joints, significantly reduces the overall volume and weight, perfectly meets the harsh requirements of hydrogen bicycle on installation space, reduces potential leakage points, combines the built-in safety pressure relief device 5, temperature and pressure sensor 6, constitutes multiple safety protection, ensures the system safety under frequent filling and use, simplifies the system structure, reduces the number of parts and assembly complexity, is conducive to large-scale production, and reduces the cost of single piece.

[0017] Further improved, for exampleFigure 1 As shown: The safety relief device 5 is arranged on the side of the filling connector 8, and a temperature sensing element is arranged in the installation relief device. When the ambient temperature suddenly rises due to abnormal conditions such as fire and exceeds the set action temperature, the glass bubble in the safety relief device 5 breaks, automatically opening the relief channel, and quickly discharging the high-pressure hydrogen gas in the cylinder to the preset safe direction, preventing the cylinder from exploding due to over-temperature and over-pressure.

[0018] Further improved, as shown in Figure 1 As shown: The pressure sensor 6 is arranged on the side of the valve body 1, and the detection end of the pressure sensor 6 is connected with the inner cavity of the hydrogen cylinder. The pressure sensor 6 monitors the hydrogen pressure in the cylinder in real time and accurately, and transmits the data to the vehicle control system or display instrument. This not only ensures that the filling process does not exceed the pressure, but also facilitates the user to master the hydrogen storage amount in real time, realizes the intelligent management of the pressure, and avoids the risk of overcharging.

[0019] Further improved, as shown in Figure 1 As shown: The temperature sensor 9 is arranged at the bottom of the valve body 1, and the detection end of the temperature sensor 9 is connected with the inner cavity of the hydrogen cylinder. The temperature sensor 9 monitors the hydrogen temperature in the cylinder in real time. In the process of rapid filling, the compression of hydrogen gas will cause temperature rise. This sensor can cooperate with the control system to implement safety interlocking to prevent high temperature; at the same time, it can also monitor abnormal temperature rise such as environmental fire, and constitute another safety warning.

[0020] Further improved, as shown in Figure 1 As shown: The filling connector 8 is a quick plug-in interface meeting the 70MPa high-pressure hydrogen filling standard. The standardized 70MPa quick plug-in interface enables users or hydrogen filling station staff to quickly and reliably connect the hydrogen filling gun and the cylinder like filling the car with oil, realizing the convenient filling of "continuous power and no disassembly of the cylinder".

[0021] Working principle: when the vehicle is running normally, the control system sends a command according to the demand, and the electromagnetic valve 4 is opened. Hydrogen flows from the gas cylinder through the inlet pipe 7, through the high-pressure channel integrated in the valve body 1, and then through the manual stop valve 3 and the electromagnetic valve 4, to supply the fuel cell or engine. The pressure sensor 6 and the temperature sensor 9 continuously monitor the state in the cylinder, and the integrated flow channel design reduces the flow resistance and the risk of leakage; the electromagnetic valve 4 realizes remote electric control switching of hydrogen supply, which is convenient for integration into the vehicle control system; the double sensors provide a data basis for safe operation and state evaluation of the system, and when hydrogen needs to be added, the user or service personnel will directly insert the standard 70MPa hydrogen filling gun into the filling connector 8 on the side of the valve body 1. The mechanical structure of the quick plug-in interface ensures firm and reliable connection. The standardized quick interface makes the filling operation extremely simple and fast, without any tools or disassembly, and the user experience is comparable to that of traditional gasoline vehicles, solving the biggest usage obstacle in the background technology. Before filling, the system automatically reads the values of the pressure sensor 6 and the temperature sensor 9 to verify whether the current state of the cylinder allows filling. After verification, the manual stop valve 3 and the electromagnetic valve 4 are ensured to be in the open state, and the hydrogen filling station starts to inject 70MPa high-pressure hydrogen. Hydrogen enters the cylinder through the filling connector 8, the high-pressure channel in the valve body 1 and the inlet pipe 7. The sensors continuously monitor the pressure and temperature during the entire process, and the safety interlock check before filling prevents the risk of filling in abnormal conditions (such as excessive residual pressure and abnormal temperature); the entire filling path is highly integrated, without additional pipelines, reducing potential leakage points and improving filling efficiency; real-time monitoring ensures that the filling process is strictly within the safety parameters.

[0022] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, and it is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0023] Finally, it should be noted that in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change.

[0024] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hydrogen combination cylinder valve with an integrated 70MPa filling port, characterized in that: include: A valve body (1) is provided with a bottle mouth connection end (2) at the lower part of the valve body (1) and the valve body (1) is fixedly connected to the gas cylinder through the bottle mouth connection end (2). A filling connector (8) is provided on the side of the valve body (1) and the filling connector (8) is connected to the high pressure channel inside the valve body (1). An air inlet pipe (7) is provided inside the bottle mouth connection end (2) and the air inlet pipe (7) extends from the inside of the valve body (1) into the gas cylinder. A solenoid valve (4) and a manual shut-off valve (3) are provided on the opposite side of the filling connector (8). The solenoid valve (4) and the manual shut-off valve (3) are connected to the main airflow channel and the manual shut-off valve (3) and the solenoid valve (4) are installed in sequence along the airflow direction.

2. The hydrogen combination cylinder valve with an integrated 70MPa filling port according to claim 1, characterized in that: A safety pressure relief device (5) is provided on the side of the filling connector (8), and a temperature sensing element is provided in the pressure relief device.

3. The hydrogen combination cylinder valve with an integrated 70MPa filling port according to claim 1, characterized in that: A pressure sensor (6) is provided on the side of the valve body (1), and the detection end of the pressure sensor (6) is connected to the inner cavity of the hydrogen cylinder.

4. A hydrogen combination cylinder valve with an integrated 70MPa filling port according to claim 1, characterized in that: A temperature sensor (9) is provided at the bottom of the valve body (1), and the detection end of the temperature sensor (9) is connected to the inner cavity of the hydrogen cylinder.

5. A hydrogen combination cylinder valve with an integrated 70MPa filling port according to claim 1, characterized in that: The filling connector (8) is a quick-plug interface that meets the 70MPa high-pressure hydrogen filling standard.

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