Gas fuel relief device, hydrogen fuel system and new energy vehicle

Abstract

The utility model belongs to the technical field of new energy, and discloses a gas fuel relief device, a hydrogen fuel system and a new energy vehicle. The gas fuel relief device comprises a fixed frame, and the fixed frame comprises a supporting longitudinal beam arranged in the vertical direction and a plurality of layers of placement frames arranged in the vertical direction. The supporting longitudinal beams are provided with discharge channels communicated with the outside, and connector bases are arranged corresponding to the placement frames on each layer; the mounting frame is used for mounting the gas storage containers, each gas storage container is provided with a discharge module, each discharge module comprises a first discharge pipe and a connector, one end of each first discharge pipe is connected with a discharge valve port of the corresponding gas storage container, and the other end of each first discharge pipe is connected with the corresponding connector base through the corresponding connector to form sealing fit. According to the gas fuel discharging device, arrangement of a discharging gathering pipeline is omitted, bending points and connecting points in the discharging pipeline are reduced, resistance in the discharging process is reduced, and the manufacturing difficulty and cost are reduced.

Description

Technical Field

[0001] The present application belongs to the field of new energy technology, and specifically relates to a gas fuel discharge device, a hydrogen fuel system and a new energy vehicle. Background Art

[0002] As a hydrogen refueling, storage and supply device for hydrogen fuel cell vehicles, the onboard hydrogen system provides sufficient hydrogen for the fuel cell system to meet the vehicle's endurance requirements. Considering the safety of hydrogen, in addition to the basic functions of hydrogen refueling, storage and supply, the onboard hydrogen system also has safety protection functions such as high and low pressure monitoring, hydrogen temperature monitoring, hydrogen leakage monitoring, over-temperature relief, over-pressure relief, and over-current protection.

[0003] Among them, hydrogen release in emergency situations is an important safety measure to ensure the safety of the entire vehicle. Due to the low density of hydrogen and its strong fusibility, the hydrogen release port is often arranged on the top of the vehicle. How to reasonably arrange the release pipeline directly affects the difficulty and processing cost of the hydrogen system pipeline.

[0004] In the prior art, a stainless steel pipe combined with a three-way joint is used in the hydrogen discharge path to connect the hydrogen discharge ports of each bottle valve of multiple bottle groups, and then guide the discharge port to the top of the hydrogen system. This method has many bending points in the pipeline, is difficult to manufacture, has a large discharge resistance, and has a large number of pipeline connection points, resulting in high maintenance costs. Utility Model Content

[0005] The purpose of this application is to provide a gas fuel discharge device, a hydrogen fuel system and a new energy vehicle to achieve the discharge of gas fuel, while reducing the bending points and connection points in the discharge pipeline, reducing the resistance during the discharge process, and reducing the manufacturing difficulty and subsequent maintenance costs.

[0006] In order to achieve the above-mentioned object, the first aspect of the present application provides a gas fuel discharge device, comprising a fixed frame, wherein the fixed frame comprises a supporting longitudinal beam arranged in a vertical direction and a plurality of layers of placement racks arranged in a vertical direction;

[0007] The supporting longitudinal beam is provided with a discharge channel connected to the outside and a joint base is provided corresponding to each layer of the placement frame;

[0008] The mounting rack is used to install gas storage containers, wherein each of the gas storage containers is configured with a discharge module, and the discharge module includes a first discharge pipe and a connecting joint, one end of the first discharge pipe is connected to the discharge valve port of the gas storage container, and the other end is connected to the corresponding joint base through the connecting joint to form a sealing fit.

[0009] As a further improvement of the above technical solution:

[0010] In some embodiments, the supporting longitudinal beam has a hollow cavity and is provided with a discharge port communicating with the hollow cavity near the top;

[0011] Wherein, the hollow cavity and the discharge port together form the discharge channel.

[0012] In some embodiments, an anti-corrosion layer is provided on the inner wall of the hollow cavity.

[0013] In some embodiments, the discharge port is provided with a second discharge pipe, and an outlet of the second discharge pipe faces upward.

[0014] In some embodiments, the outlet of the second discharge pipe is lower than the discharge port, and a U-shaped water-blocking bend is formed on the second discharge pipe.

[0015] In some embodiments, a removable plug is provided at the outlet of the second discharge pipe, and when the pressure in the discharge channel reaches a preset value, the plug can be forced to disengage from the outlet of the second discharge pipe.

[0016] In some embodiments, a sealing ring is provided between the connecting joint and the corresponding joint base.

[0017] In some embodiments, at least one curved portion is formed on the first discharge pipe.

[0018] The second aspect of the present application provides a hydrogen fuel system, including a hydrogenation module, a hydrogen supply module gas storage container and a gas fuel release device according to the first aspect above, wherein the hydrogenation module is connected to the gas storage container via a hydrogen storage module, and the gas storage container is used to store hydrogen.

[0019] A third aspect of the present application provides a new energy vehicle, comprising a chassis assembly and a hydrogen fuel system according to the second aspect.

[0020] Compared with the prior art, the present application provides a gas fuel discharge device, a hydrogen fuel system and a new energy vehicle, wherein the gas fuel discharge device is configured with a discharge module for each gas storage container, the discharge module can be used to discharge the gas in the gas storage container, and at the same time, a discharge channel connected to the outside is constructed by using the supporting longitudinal beam on the fixed frame, and then one end of the first discharge pipe of the discharge module is connected to the discharge valve port of the gas storage container, and the other end is connected to the joint base on the supporting longitudinal beam through a connecting joint to form a sealed fit, so that the gas discharged through the discharge module directly enters the discharge channel of the supporting longitudinal beam through the first discharge pipe and is discharged to the outside. Therefore, in the gas fuel discharge device provided by the present application, the arrangement of the discharge collection pipeline is saved, the first discharge pipe is directly connected to the supporting longitudinal beam with the discharge channel, the bending points and connection points in the discharge pipeline are reduced, the pipeline layout is simpler, the resistance in the discharge process is reduced, the manufacturing difficulty and manufacturing cost are reduced, and the later maintenance cost is also reduced.

[0021] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a gas fuel discharge device provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0025] Figure 3 A schematic diagram of the connection between the first discharge pipe and the supporting longitudinal beam in the gas fuel discharge device provided in an embodiment of the present application;

[0026] Figure 4 It is a schematic diagram of assembling a connecting joint and a joint base between a first discharge pipe and a supporting longitudinal beam in a gas fuel discharge device provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of a partial structure of a gas fuel discharge device provided in an embodiment of the present application without installing a second discharge pipe;

[0028] Figure 6 for Figure 5A partial structural schematic diagram of the gas fuel discharge device shown is equipped with a second discharge pipe;

[0029] Figure 7 A schematic diagram of the structure of a gas fuel discharge system provided in an embodiment of the present application;

[0030] Figure 8 for Figure 1 A local enlarged schematic diagram of point B in the middle.

[0031] Description of Reference Numerals

[0032] 100, fixed frame; 110, mounting frame; 120, supporting longitudinal beam; 121, hollow cavity; 122, discharge port; 123, joint base; 124, sealing ring; 130, supporting cross beam; 140, second discharge pipe;

[0033] 200, discharge module; 210, first discharge pipe; 210a, bending part; 220, connection joint;

[0034] 300. Gas storage containers;

[0035] 400, hydrogenation module; 410, hydrogenation pipeline; 420, hydrogenation port; 430, one-way valve; 440, first filter;

[0036] 500, hydrogen storage module; 510, bottle mouth valve;

[0037] 600, hydrogen supply module; 610, hydrogen supply pipeline; 620, second filter; 630, pressure reducing valve;

[0038] 700, main pipeline; 710, branch pipeline;

[0039] 800, TPRD device;

[0040] 900. Infrared transmitter. DETAILED DESCRIPTION

[0041] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0042] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0043] Embodiment 1

[0044] See also Figure 1 , Figure 2 , Figure 3 and Figure 4, this embodiment provides a gas fuel discharge device, which is used to automatically discharge gas fuel to the outside in an emergency situation to improve the safety of the equipment.

[0045] In this embodiment, the gas fuel discharge device includes a fixed frame 100, and the fixed frame 100 includes a supporting longitudinal beam 120 arranged in a vertical direction and a plurality of layers of mounting racks 110 arranged in a vertical direction.

[0046] It should be noted that, in this embodiment, “several layers” can be understood as “at least one layer”.

[0047] The supporting longitudinal beam 120 is provided with a discharge channel connected to the outside, and the supporting longitudinal beam 120 is provided with a joint base 123 corresponding to each layer of the placement rack 110. The placement rack 110 is used to install the gas storage container 300, and the gas storage container 300 is used to store gas fuel.

[0048] Each gas storage container 300 is equipped with a discharge module 200, which includes a first discharge pipe 210 and a connection joint 220. One end of the first discharge pipe 210 is connected to the discharge valve port of the gas storage container 300, and the other end is connected to the corresponding joint base 123 through the connection joint 220 to form a sealed fit. In this way, the support longitudinal beam 120 can be used to construct a discharge channel connected to the outside to achieve gas fuel discharge.

[0049] In some embodiments, the connection connector 220 and the connector base 123 may be manufactured as an integral structure.

[0050] Specifically, the fixed frame 100 has four vertical side ribs, each of which is provided with a supporting longitudinal beam 120, and adjacent supporting longitudinal beams 120 are connected by supporting cross beams 130. An accommodating space is formed inside the fixed frame 100, and the placement rack 110 is arranged in the accommodating space of the fixed frame 100. The placement rack 110 can be arranged in multiple groups, and the multiple groups of placement racks 110 are spaced apart in the vertical direction, and the space formed between two adjacent placement racks 110 can accommodate the gas storage container 300.

[0051] It is understandable that the supporting longitudinal beam 120 for releasing the gas fuel is selected as close as possible to the release module 200 to construct a release channel connected to the outside world, so as to reduce the length of the first release pipe 210. Of course, other supporting longitudinal beams 120 can also be selected to construct a release channel connected to the outside world.

[0052] See also Figure 1In this embodiment, three layers of mounting racks 110 are provided in the fixed frame 100, and two gas storage containers 300 can be installed on each layer of mounting racks 110. Of course, in some embodiments, the number of layers of mounting racks 110 in the fixed frame 100 can also be two layers, four layers, five layers or other layers. Three, four, five or other numbers of gas storage containers 300 can be installed on each layer of mounting racks 110. It should be understood that the above is only an example and is not intended to limit the scope of protection of this application.

[0053] It can be understood that the gas fuel discharge device provided in this embodiment configures a discharge module 200 for each gas storage container 300. The discharge module 200 can be used to discharge the gas in the gas storage container 300, and at the same time, the support longitudinal beam 120 on the fixed frame 100 is used to construct a discharge channel connected to the outside world, and then one end of the first discharge pipe 210 of the discharge module 200 is connected to the discharge valve port of the gas storage container 300, and the other end is connected to the joint base 123 on the support longitudinal beam 120 through the connecting joint 220 to form a sealed fit, so that the gas discharged through the discharge module 200 directly enters the discharge channel of the support longitudinal beam 120 through the first discharge pipe 210 and is discharged to the outside world. Therefore, in the gas fuel discharge device provided in the present application, the arrangement of the discharge collection pipeline is saved, and the first discharge pipe 210 is directly connected to the supporting longitudinal beam 120 with the discharge channel, reducing the bending points and connection points in the discharge pipeline, making the pipeline layout simpler, reducing the resistance during the discharge process, reducing the manufacturing difficulty and manufacturing cost, and also reducing the subsequent maintenance cost.

[0054] In order to more clearly describe the technical solution of the present application, the gas fuel discharge device provided in this embodiment is described below, specifically as follows:

[0055] See also Figure 1 , Figure 2 and Figure 3 In this embodiment, the supporting longitudinal beam 120 near the discharge module 200 has a hollow cavity 121 and a discharge port 122 connected to the hollow cavity 121 is provided near the top. The hollow cavity 121 and the discharge port 122 together form a discharge channel. In this way, the gas fuel enters the hollow cavity 121 through the first discharge pipe 210 and is then discharged to the outside through the discharge port 122.

[0056] Furthermore, an anti-corrosion layer (not shown) is provided on the inner wall of the hollow cavity 121 for anti-corrosion treatment, thereby preventing the supporting longitudinal beam 120 from being corroded and extending the service life.

[0057] Optionally, the anti-corrosion layer on the inner wall of the hollow cavity 121 is formed by a surface treatment method such as electrophoresis; or by a process such as painting, dipping and baking varnish.

[0058] Optionally, the cross-sectional shape of the hollow cavity 121 along its width direction is circular, square or other shapes.

[0059] Optionally, at least one curved portion 210a is formed on the first discharge pipe 210. The curved portion 210a can provide a shock absorbing effect for the first discharge pipe 210 and facilitate the installation of the first discharge pipe 210.

[0060] Optionally, the gas storage container 300 may be a gas cylinder.

[0061] See also Figure 3 and Figure 4 Optionally, in this embodiment, the connection joint 220 and the joint base 123 are plug-connected in the form of a male and female joint. The connection joint 220 can be a straight joint, or other types of joints.

[0062] See also Figure 4 Optionally, a sealing ring 124 , such as an O-ring or a T-ring, is provided between the connecting joint 220 and the corresponding joint base 123 .

[0063] See also Figure 2 and Figure 3 Optionally, the joint base 123 and the supporting longitudinal beam 120 are welded to ensure sealing. According to the number and position of the gas storage containers 300, the corresponding joint bases 123 can be welded at different positions on the supporting longitudinal beam 120 to reduce the number of the first discharge pipes 210.

[0064] Embodiment 2

[0065] See also Figure 1 , Figure 3 , Figure 5 and Figure 6 This embodiment provides a gas fuel release device, which is used to automatically discharge gas fuel to the outside in an emergency to improve the safety of the equipment. This embodiment is an improvement based on the technology of the above embodiment 1. Compared with the above embodiment 1, the difference is:

[0066] In this embodiment, the discharge port 122 is provided with a second discharge pipe 140, and the outlet of the second discharge pipe 140 faces upward. In this way, the gas discharged from the discharge port 122 can be discharged through the second discharge pipe 140. The second discharge pipe 140 can control the gas to be discharged in a preset direction, and the discharge position can be controlled by the length of the second discharge pipe 140.

[0067] Furthermore, the outlet of the second discharge pipe 140 is lower than the discharge port 122 , and a U-shaped water-blocking bend is formed on the second discharge pipe 140 , so as to prevent rainwater from entering the discharge port 122 .

[0068] Optionally, the outlet of the second discharge pipe 140 is provided with a removable plug (not shown), and when the pressure of the discharge channel reaches a preset value, the plug can be forced to be removed from the outlet of the second discharge pipe 140. In this way, the pressure of the discharge channel can be prevented from being too high, which may cause safety hazards. Among them, the main purpose of the plug is to prevent water and dust, so the preset pressure value should be as low as possible.

[0069] Embodiment 3

[0070] See also Figure 1 and Figure 7 This embodiment provides a hydrogen fuel system for storing and using hydrogen, and in particular provides a vehicle-mounted hydrogen system.

[0071] Hydrogen is a gas fuel that can provide sufficient fuel for the vehicle to meet the vehicle's range requirements. For fuel cell commercial vehicles, multiple hydrogen bottles (gas storage containers 300) are used, and the common arrangements are side-mounted and back-mounted. The hydrogen bottles are assembled in the fixed frame 100 and fastened with a drawstring to meet the vehicle's usage scenarios.

[0072] In this embodiment, the hydrogen fuel system includes a hydrogenation module 400, a hydrogen supply module 600, a gas storage container 300 and a gas fuel discharge device provided in the above-mentioned embodiment one or embodiment two. The hydrogenation module 400 is connected to the gas storage container 300 through the hydrogen storage module 500, and the gas storage container 300 is used to store hydrogen.

[0073] The hydrogenation module 400 includes a hydrogenation port 420, a one-way valve 430, and a first filter 440 connected by a hydrogenation pipeline 410. The hydrogen storage module 500 includes a bottle mouth valve 510. The hydrogen supply module 600 includes a second filter 620 and a pressure reducing valve 630 connected in sequence by a hydrogen supply pipeline 610. Among them, each gas storage container 300 is correspondingly arranged with a bottle mouth valve 510, and the hydrogenation pipeline 410 and the hydrogen supply pipeline 610 are connected to each bottle mouth valve 510 by a branch pipeline 710 on the main pipeline 700 after being collected by the main pipeline.

[0074] When hydrogen needs to be added to the gas storage container 300, the high-pressure hydrogen passes through the hydrogenation port 420, the one-way valve 430, the first filter 440, and finally enters the gas storage container 300 through the bottle valve 510. When there is a demand for hydrogen, the bottle valve 510 is opened, and the hydrogen passes through the bottle valve 510 and the second filter 620 to the pressure reducing valve 630, and is reduced to the pressure required by the fuel cell by the pressure reducing valve 630 and then flows to the fuel cell system.

[0075] Furthermore, each bottle mouth valve 510 has a discharge valve port, and each bottle mouth valve 510 is correspondingly arranged with a first discharge pipe 210, one end of the first discharge pipe 210 is connected to the discharge valve port of the bottle mouth valve 510, and the other end is connected to the joint base 123 on the supporting longitudinal beam 120 through the connecting joint 220. In this way, when the hydrogen fuel system is abnormally high in temperature and pressure, hydrogen is discharged through the first discharge pipe 210 to ensure safe use.

[0076] In some embodiments, each gas storage container 300 is further provided with a TPRD device 800 (temperature driven safety pressure relief device), which also has a discharge valve port, and the discharge valve port of the TPRD device 800 is also connected to the corresponding supporting longitudinal beam 120 through the first discharge pipe 210. When the temperature exceeds the preset value, the TPRD device 800 is opened to quickly discharge the hydrogen in the gas storage container 300 to ensure safety in use.

[0077] See also Figure 1 and Figure 8 In addition, the hydrogen fuel system is equipped with an infrared transmitter 900, which is used to communicate pressure, temperature and other data with the hydrogen filling machine during hydrogen filling, monitor the status of the hydrogen fuel system in real time, and actively adjust the hydrogen filling speed according to the status of the hydrogen fuel system, so as to achieve the effect of increasing the hydrogen filling rate. Among them, the infrared transmitter 900 is fixed near the hydrogen filling port 420.

[0078] See also Figures 1 to 8 Furthermore, this embodiment also provides a new energy vehicle, including a chassis assembly and a hydrogen fuel system provided according to the above embodiment.

[0079] It should be noted that in this embodiment, the supporting longitudinal beam 120 of the fixed frame 100 in the hydrogen fuel system is constructed into a discharge channel connected to the outside world. On the one hand, the function of the supporting longitudinal beam 120 is fully utilized, and on the other hand, the use of hydrogen pipelines and joints is reduced, which simplifies the system layout to a certain extent and reduces the manufacturing cost.

[0080] It should be noted that in the present application, unless otherwise specified, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like used to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0081] Among them, the structures of the bottle mouth valve 510 and the TPRD device 800 are well known to those skilled in the art, and do not belong to the core improvement part of the present application, so they will not be described here in detail.

[0082] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0083] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0085] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A gas fuel release device, characterized in that: It comprises a fixed frame (100), wherein the fixed frame (100) comprises a supporting longitudinal beam (120) arranged in a vertical direction and a plurality of layers of placement frames (110) arranged in a vertical direction; The supporting longitudinal beam (120) is provided with a discharge channel connected to the outside and a joint base (123) is provided corresponding to each layer of the placement frame (110); The mounting frame (110) is used to install a gas storage container (300), wherein each of the gas storage containers (300) is configured with a discharge module (200), and the discharge module (200) comprises a first discharge pipe (210) and a connecting joint (220), one end of the first discharge pipe (210) is connected to the discharge valve port of the gas storage container (300), and the other end is connected to the corresponding joint base (123) through the connecting joint (220) to form a sealed fit.

2. The gas fuel release device according to claim 1, characterized in that: The supporting longitudinal beam (120) has a hollow cavity (121) and is provided with a discharge port (122) communicating with the hollow cavity (121) at a position close to the top; Wherein, the hollow cavity (121) and the discharge port (122) together form the discharge channel.

3. The gas fuel release device according to claim 2, characterized in that: An anti-corrosion layer is provided on the inner wall of the hollow cavity (121).

4. The gas fuel release device according to claim 2, characterized in that: The discharge port (122) is provided with a second discharge pipe (140), and the outlet of the second discharge pipe (140) faces upward.

5. The gas fuel release device according to claim 4, characterized in that: The outlet of the second discharge pipe (140) is lower than the discharge port (122), and a U-shaped water-blocking bend is formed on the second discharge pipe (140).

6. The gas fuel release device according to claim 4 or 5, characterized in that: The outlet of the second discharge pipe (140) is provided with a removable plug, and when the pressure in the discharge channel reaches a preset value, the plug can be forced to disengage from the outlet of the second discharge pipe (140).

7. The gas fuel release device according to claim 1, characterized in that: A sealing ring (124) is provided between the connecting joint (220) and the corresponding joint base (123).

8. The gas fuel release device according to claim 1, characterized in that: At least one curved portion (210a) is formed on the first discharge pipe (210).

9. A hydrogen fuel system, characterized in that: It comprises a hydrogenation module (400), a hydrogen supply module (600), a gas storage container (300) and a gas fuel release device according to any one of claims 1 to 8, wherein the hydrogenation module (400) is connected to the gas storage container (300) via a hydrogen storage module (500), and the gas storage container (300) is used to store hydrogen.

10. A new energy vehicle, characterized in that: The invention comprises a chassis assembly and a hydrogen fuel system according to claim 9.

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