CN211118755U

CN211118755U - Cylinder valve assembly

Info

Publication number: CN211118755U
Application number: CN201921909508.8U
Authority: CN
Inventors: 吴立新
Original assignee: Inwinic Technologies Shenzhen Co ltd
Current assignee: Inwinic Technologies Shenzhen Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-07-28
Anticipated expiration: 2029-11-06

Abstract

The utility model provides a cylinder valve assembly, cylinder valve assembly includes base, high pressure stop valve and relief pressure valve assembly, high pressure stop valve install in the lateral wall of base, just the one end of high pressure stop valve is located the outside of base, the other end of high pressure stop valve is located the inside of base, relief pressure valve assembly includes two series connection's first relief pressure valve and second relief pressure valve, first relief pressure valve with the second relief pressure valve is located the inside of base, just the base for the lateral wall of second relief pressure valve is provided with first interface, first interface is connected with the high-pressure gas cylinder. Therefore, the utility model provides a technical scheme can use through first relief pressure valve and the cooperation of second relief pressure valve, makes the hydrogen pressure that flows from first interface keep invariable low pressure, so that the hydrogen of storage is by make full use of in the high-pressure gas cylinder, thereby improves the utilization ratio of hydrogen, the energy saving.

Description

Cylinder valve assembly

Technical Field

The utility model relates to a gaseous filling equipment technical field, in particular to bottle valve module.

Background

In a fuel cell vehicle, a hydrogen storage tank is mounted for storing hydrogen gas supplied from a hydrogen refueling station located outside the vehicle and supplying the hydrogen gas to a fuel cell stack for generating electricity. However, since the outlet of the hydrogen storage tank is only provided with a common cylinder valve, the gas pressure at the outlet is unstable, the utilization rate of the gas is low, and energy is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bottle valve unit spare has solved the gas pressure instability of the export of hydrogen storage tank, leads to the problem of gaseous low-usage.

In order to achieve the above object, the utility model provides a cylinder valve assembly, cylinder valve assembly includes:

a base;

the high-pressure stop valve is mounted on the side wall of the base, one end of the high-pressure stop valve is positioned outside the base, and the other end of the high-pressure stop valve is positioned inside the base;

the pressure reducing valve assembly comprises a first pressure reducing valve and a second pressure reducing valve which are connected in series, the first pressure reducing valve and the second pressure reducing valve are arranged in the base, the base is opposite to the side wall of the pressure reducing valve assembly, and a first interface is arranged on the side wall of the pressure reducing valve assembly and connected with a high-pressure gas bottle.

Further, a filter is arranged at the first interface and is arranged between the pressure reducing valve assembly and the high-pressure gas cylinder.

Furthermore, be equipped with the orientation on the base the outside switching portion that extends of base, the base with switching portion structure as an organic whole, first interface sets up switching portion deviates from the one end of base, just be equipped with on the outer wall of switching portion with internal thread assorted external screw thread on the high pressure gas cylinder bottleneck.

Further, a sealing ring and a check ring are arranged at the joint of the outer wall of the switching portion and the high-pressure gas cylinder in parallel, the sealing ring and the check ring are sleeved on the outer wall of the switching portion, and the check ring is located on the low-pressure side of the joint of the outer wall of the switching portion and the high-pressure gas cylinder.

Further, the cylinder valve assembly is further provided with a second interface which is communicated with the high-pressure gas cylinder through the inner space of the base so as to charge the high-pressure gas cylinder.

Further, the cylinder valve assembly is also provided with a third interface which is communicated with the fuel cell through a pipeline so as to supply air to the fuel cell.

Further, the cylinder valve assembly further comprises a pressure sensor for detecting the gas pressure of the third interface, and the pressure sensor is mounted on the base.

Further, the gas pressure range of the third interface is 40-80 KPa.

Further, the third interface is a pneumatic quick interface.

Further, the first pressure reducing valve and the second pressure reducing valve are in threaded connection or clamped in the base.

The utility model provides a bottle valve unit spare, bottle valve unit spare includes base, high pressure stop valve and relief pressure valve subassembly, high pressure stop valve install in the lateral wall of base, just the one end of high pressure stop valve is located the outside of base, the other end of high pressure stop valve is located the inside of base, relief pressure valve unit spare includes two series connection's first relief pressure valve and second relief pressure valve, first relief pressure valve with the second relief pressure valve is located the inside of base, just the base for the lateral wall of second relief pressure valve is provided with first interface, first interface is connected with the high-pressure gas cylinder. Therefore, the utility model provides a technical scheme can use through first relief pressure valve and the cooperation of second relief pressure valve, makes the hydrogen pressure that flows from first interface keep invariable low pressure, so that the hydrogen of storage is by make full use of in the high-pressure gas cylinder, thereby improves the utilization ratio of hydrogen, the energy saving.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or examples of the present invention, the drawings used in the embodiments or examples will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a cylinder valve assembly according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the gas supply of a fuel cell according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a cylinder valve assembly according to another embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

As shown in FIGS. 1-3, the utility model provides a cylinder valve assembly.

In one embodiment, as shown in FIG. 1, the cylinder valve assembly includes a base 1, a high pressure shut-off valve 2, and a pressure reducing valve assembly 3. Wherein, high pressure stop valve 2 install in the lateral wall of base 1, just high pressure stop valve 2's one end is located the outside of base 1, high pressure stop valve 2's the other end is located the inside of base 2. Specifically, the high-pressure stop valve 2 includes an adjusting member 21 and a valve body (not shown) provided integrally with the adjusting member 21, the adjusting member 21 being provided outside the base 1, and the valve body extending to the inside of the base 1.

Further, as shown in fig. 2, the pressure reducing valve assembly 3 includes a first pressure reducing valve 31 and a second pressure reducing valve 32 connected in series, the first pressure reducing valve 31 and the second pressure reducing valve 32 are disposed inside the base 1, a first interface 4 is disposed on the side wall of the base 1 opposite to the pressure reducing valve assembly 3, and the first interface 4 is connected to the high-pressure gas cylinder 100. The high-pressure gas cylinder 100 is used for storing hydrogen, and a mouth of the high-pressure gas cylinder 100 is connected to the first connector 4, so that the high-pressure gas cylinder 100 is communicated with the inner space of the base 1.

It is to be understood that the description in the present application relating to "first pressure reducing valve", "second pressure reducing valve", etc., is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first pressure relief valve" and "second pressure relief valve" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Further, the high-pressure stop valve 2 is used for disconnecting or connecting the gas supply of the high-pressure gas cylinder 100, that is, for opening or closing the first interface 4, and the first pressure reducing valve 31 and the second pressure reducing valve 32 are used for reducing the pressure of the stored high-pressure hydrogen in the high-pressure gas cylinder 100 to a set low-pressure hydrogen, so that when the high-pressure stop valve 2 opens the first interface 4, the pressure of the hydrogen flowing out from the first interface 4 is kept at a constant low pressure, so that the hydrogen stored in the high-pressure gas cylinder 100 is fully utilized, thereby improving the utilization rate of the hydrogen and saving energy.

Further, the first pressure reducing valve 31 is disposed near one end of the first port 4, or the second pressure reducing valve 32 is disposed near one end of the first port 4, which is not limited herein.

Optionally, the high-pressure stop valve 2, the first pressure reducing valve 31, and the second pressure reducing valve 32 are all made of nickel-containing stainless steel, so that the high-pressure stop valve 2, the first pressure reducing valve 31, and the second pressure reducing valve 32 have better corrosion resistance.

Further, in order to lighten the weight of the cylinder valve component, the base 1 is made of aluminum alloy, the base made of aluminum alloy makes the whole weight of the cylinder valve component light, and aluminum alloy with high strength is adopted by the aluminum alloy in the embodiment so as to prevent the corrosion of hydrogen and avoid the trouble that anodizing is needed after the corrosion.

Further, the first pressure reducing valve 31 and the second pressure reducing valve 32 are connected or clamped in the base 1 in a threaded mode, and the base is convenient to detach.

The utility model discloses an in the embodiment, the bottle valve subassembly includes base 1, high pressure stop valve 2 and relief pressure valve subassembly 3, high pressure stop valve 2 install in the lateral wall of base 1, just the one end of high pressure stop valve 2 is located the outside of base 1, the other end of high pressure stop valve 2 is located the inside of base 1, relief pressure valve subassembly 3 includes two series connection's first relief pressure valve 31 and second relief pressure valve 32, first relief pressure valve 31 with second relief pressure valve 32 locates the inside of base 1, just base 1 for the lateral wall of second relief pressure valve 32 is provided with first interface 4, first interface 4 is connected with high-pressure gas cylinder 100. Therefore, the utility model provides a technical scheme can use through the cooperation of first relief pressure valve 31 and second relief pressure valve 32, makes the hydrogen pressure that flows out from first interface 4 keep invariable low pressure, so that the hydrogen of storage is by make full use of in the high-pressure gas cylinder 100, thereby improves the utilization ratio of hydrogen, the energy saving.

In one embodiment, a filter (not shown) is disposed at the first port 4, and the filter is disposed between the pressure reducing valve assembly 3 and the high-pressure gas cylinder 100. Wherein, the filter is used for preventing foreign impurities in the high-pressure gas cylinder 100 from entering the base 1 along with the hydrogen, thereby protecting the reducing valve assembly 3 from being polluted by the foreign impurities and damaging the sealing surface of the reducing valve assembly 3.

In an embodiment, an adapter portion 5 extending towards the outside of the base 1 is arranged on the base 1, the base 1 and the adapter portion 5 are of an integral structure, the first interface 4 is arranged at one end of the adapter portion 5 departing from the base 1, and an external thread matched with the internal thread on the opening of the high-pressure gas cylinder 100 is arranged on the outer wall of the adapter portion 5. Namely, the connection between the adapter part 5 and the high-pressure gas cylinder 100 is a threaded connection, which is convenient for disassembly and assembly.

It can be understood that the base 1 and the adapter portion 5 may also be in a split structure, that is, the adapter portion 5 is connected to the base 1, the adapter portion 5 is in a hollow configuration, an internal space of the adapter portion 5 is communicated with an internal space of the base 1, one end of the adapter portion 5 away from the base 1 is the first interface 4, and the first interface 4 is connected to the high-pressure gas cylinder 100. The base 1 and the adapter part 5 are made of the same material, namely, the base and the adapter part are made of aluminum alloy materials, so that the overall weight of the cylinder valve assembly is reduced.

In an embodiment, a sealing ring 6 and a retaining ring 7 are arranged in parallel at a joint between the outer wall of the adapter portion 5 and the high-pressure gas cylinder 100, the sealing ring 6 and the retaining ring 7 are sleeved on the outer wall of the adapter portion 5, and the retaining ring 7 is located on a low-pressure side of the joint between the outer wall of the adapter portion 5 and the high-pressure gas cylinder 100. The sealing effect of the sealing ring 6 is good, and the check ring 7 is used for preventing the excessive air pressure from influencing the deformation of the sealing ring 6 so as to ensure the good sealing performance of the sealing ring 6. In this embodiment, the sealing ring 6 is an O-shaped silica gel sealing ring or a rubber sealing ring to ensure the sealing effect of the sealing ring.

In an embodiment, the cylinder valve assembly is further provided with a second port 8, and the second port 8 communicates with the high pressure gas cylinder 100 through the inner space of the base 1 to charge the high pressure gas cylinder 100. Namely, the second interface 8 is an inflation port, wherein when the high-pressure gas cylinder 100 needs to be inflated, the high-pressure stop valve and the pressure reducing valve assembly in the cylinder valve assembly are closed, and the second interface 8 is opened, at this time, the second interface 8 is communicated with the high-pressure gas cylinder 100, and an external inflation tool is directly inserted into the second interface 8 so as to fill an air body into the high-pressure gas cylinder 100; after the high-pressure gas cylinder 100 is filled with gas, the inflation tool is pulled out, and the second connector 8 is closed, so that inflation of the high-pressure gas cylinder 100 is completed. Wherein, an inflation valve (not shown) is arranged at the second interface 8, and the inflation valve is a one-way valve and is used for inflating hydrogen into the high-pressure gas cylinder 100.

In one embodiment, the cylinder valve assembly is further provided with a third port 9, and the third port 9 is communicated with the fuel cell 200 through a pipeline to supply gas to the fuel cell 200. The high-pressure gas cylinder 100 supplies hydrogen to the fuel cell 200 through the pressure reducing valve assembly 3 and the high-pressure cutoff valve 2 of the cylinder valve assembly as the fuel gas of the fuel cell 200.

Further, a safety valve (not shown) is further disposed between the third port 9 and the fuel cell 200, and the safety valve 9 is configured to cut off or communicate a pipeline between the third port 9 and the fuel cell 200 according to the detected hydrogen pressure and temperature, that is, when there is a possibility of hydrogen leakage or other accidents occurring when the hydrogen pressure and temperature are too high, the safety valve 9 may be closed to cut off the pipeline between the third port 9 and the fuel cell 200, so as to prevent accidents.

Further, since the pressure at the outlet of the cylinder valve assembly needs to be monitored, the hydrogen utilization rate of the high-pressure gas cylinder 100 is improved, that is, the hydrogen pressure at the third port 9 is monitored. As shown in fig. 3, the cylinder valve assembly of this embodiment further includes a pressure sensor 10 for detecting the gas pressure of the third port 9, and the pressure sensor 10 is mounted on the base 1.

Optionally, the gas pressure range of the third interface is 40KPa to 80 KPa. However, in this embodiment, the gas pressure of the third interface is 60KPa, so as to achieve the optimal utilization rate of hydrogen, wherein the optimal utilization rate is 98.75%.

Further, the third interface 9 is a pneumatic quick interface, which is used for a quick connector of an air distribution pipe and a pneumatic tool, and can be connected or disconnected, for example, when the high-pressure gas cylinder 100 stops supplying hydrogen to the fuel cell 200, the ferrule of the main body of the pneumatic quick connector moves to the other end, and the stainless steel ball arranged inside the pneumatic quick connector automatically rolls outwards, at this time, the daughter of the pneumatic quick connector is disconnected due to the action of the spring force of the common valve spring force of the mother body and the daughter, that is, the valves of the daughter and the mother body are respectively closed, and the flow of hydrogen is instantly blocked.

It is to be understood that the description in the present invention referring to "first interface", "second interface", "third interface", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implying that the number of indicated technical features. Thus, a feature defined as a "first interface," "second interface," or "third interface" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model discloses an in the embodiment, the bottle valve subassembly includes base 1, high pressure stop valve 2 and relief pressure valve subassembly 3, high pressure stop valve 2 install in the lateral wall of base 1, just the one end of high pressure stop valve 2 is located the outside of base 1, the other end of high pressure stop valve 2 is located the inside of base 1, relief pressure valve subassembly 3 includes two series connection's first relief pressure valve 31 and second relief pressure valve 32, first relief pressure valve 31 with second relief pressure valve 32 locates the inside of base 1, just base 1 for the lateral wall of second relief pressure valve 32 is provided with first interface 4, first interface 4 is connected with high-pressure gas cylinder 100. Therefore, the utility model provides a technical scheme can make the hydrogen pressure that flows out from first interface 4 keep invariable low pressure, so that the hydrogen of storage is by make full use of in the high-pressure gas cylinder 100, thereby improves the utilization ratio of hydrogen, the energy saving.

The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the concepts of the present invention utilize the equivalent transformation made by the contents of the specification and the drawings, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cylinder valve assembly, comprising:

a base;

2. The cylinder valve assembly of claim 1, wherein a filter is disposed at the first interface between the pressure relief valve assembly and the high pressure gas cylinder.

3. A cylinder valve assembly according to claim 1, wherein the base is provided with an adapter portion extending towards the outside of the base, the base and the adapter portion are of an integral structure, the first interface is arranged at one end of the adapter portion deviating from the base, and the outer wall of the adapter portion is provided with an external thread matched with the internal thread on the mouth of the high-pressure gas cylinder.

4. The cylinder valve assembly according to claim 3, wherein a sealing ring and a retaining ring are arranged in parallel at the joint of the outer wall of the adapter portion and the high-pressure gas cylinder, the sealing ring and the retaining ring are sleeved on the outer wall of the adapter portion, and the retaining ring is positioned on the low-pressure side of the joint of the outer wall of the adapter portion and the high-pressure gas cylinder.

5. The cylinder valve assembly according to claim 1, further provided with a second port communicating with the high pressure gas cylinder through the inner space of the base to charge the high pressure gas cylinder.

6. The cylinder valve assembly according to claim 1, further provided with a third port communicating with the fuel cell through a pipe to supply gas to the fuel cell.

7. The cylinder valve assembly according to claim 6, further comprising a pressure sensor for detecting a gas pressure of the third port, the pressure sensor being mounted on the base.

8. The cylinder valve assembly according to claim 7, wherein the gas pressure of the third port ranges from 40KPa to 80 KPa.

9. A cylinder valve assembly according to any of claims 6 to 8, wherein the third port is a pneumatic quick port.

10. The cylinder valve assembly as defined in claim 1, wherein the first and second pressure relief valves are threaded or snap-fit within the interior of the base.