CN216555528U - One-way filtering device for hydrogenation equipment - Google Patents

Abstract

The utility model discloses a one-way filtering device for hydrogenation equipment, aiming at solving the technical problems that the pipeline leakage risk and the occupied space are increased due to the increase of pipeline connection points caused by the independent arrangement of a filter and a one-way valve in the existing hydrogenation machine pipeline system; the device comprises a valve body, a non-return assembly, a filtering assembly and an interface; the check assembly comprises a check valve core and an elastic piece; the filter assembly includes a filter element; the connector comprises a one-way valve connector and a filtering connector which are correspondingly arranged at two ends of the valve body, and a one-way valve element, an elastic element and a filter element are sequentially arranged in the valve body according to the gas flow direction; the one-way valve and the filter valve are combined into a whole through an integrated design, so that the one-way valve has the functions of non-return and filtration, connecting pipelines and pipeline connecting points are reduced, the risk of pipeline leakage is reduced, the use safety and reliability of the hydrogenation machine are improved, and the occupied space of the hydrogenation machine is reduced.

Description

One-way filtering device for hydrogenation equipment

Technical Field

The utility model relates to the technical field of new energy filling equipment, in particular to a one-way filtering device for hydrogenation equipment.

Background

With the vigorous popularization and application of fuel cells and hydrogen energy, hydrogen fuel cell vehicles have been developed greatly. The hydrogen fuel has the advantages of high energy, no toxicity, good combustion performance and the like, so the hydrogen fuel has great development prospect as an efficient, clean and sustainable 'carbon-free' energy.

The vehicle-mounted hydrogen supply system provides a hydrogen source for the fuel cell, and in order to ensure safe, reliable and stable operation of the fuel cell vehicle, the engine of the fuel cell vehicle has strict requirements on the quality of hydrogen supply. At present, because the hydrogen sources of each hydrogenation station and hydrogenation equipment have different quality, in order to ensure the purity of the hydrogen for the fuel cell vehicle, a filter is often required to be installed in a hydrogenation machine pipeline for filtering impurities in the hydrogen; meanwhile, in order to prevent the reverse flow of the gas in the pipeline, a check valve is required to be arranged in the pipeline.

At present, a filter and a one-way valve in a pipeline system structure of a hydrogenation machine are usually used at the same time, but the volumes of the filter and the one-way valve are usually larger, and the arrangement in a limited space in the hydrogenation machine is very inconvenient; meanwhile, pipeline connection points in the hydrogen pipeline are increased, and pipeline leakage possibility and space occupation are increased.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.

Disclosure of Invention

The utility model aims to provide a one-way filtering device for hydrogenation equipment, and aims to solve the technical problems that pipeline connection points are increased and pipeline leakage risks and occupied space are increased due to the fact that a filter and a one-way valve are independently arranged in an existing hydrogenation machine pipeline system.

In order to solve the technical problems, the utility model adopts the following technical scheme:

designing a one-way filtering device for hydrogenation equipment, which comprises a valve body, a non-return assembly, a filtering assembly and an interface;

the check assembly comprises a check valve core and an elastic piece; the filter assembly includes a filter element;

the interface including correspond set up in the check valve interface and the filtration interface at valve body both ends, just be equipped with check valve case, elastic component, filter core in proper order according to gas flow direction in the valve body.

Preferably, the valve core of the one-way valve adopts a ball sealing structure.

Preferably, the check valve interface is provided with a groove corresponding to the ball sealing structure.

Preferably, the filter assembly is a single stage straight through filter structure.

Preferably, the valve body is respectively provided with a thread section matched with the one-way valve interface and the filtering interface.

Preferably, a groove is formed in the valve body, which faces one side of the elastic part, of the filter element, and a corresponding sealing ring is arranged in the groove.

Compared with the prior art, the utility model has the main beneficial technical effects that:

1. the one-way valve and the filter valve are combined into a whole through an integrated design, so that the integrated hydrogenation device has the functions of non-return and filtration, connecting pipelines and pipeline connecting points are reduced, the risk of pipeline leakage is reduced, and the use safety and reliability of the hydrogenation device are improved.

2. The utility model adopts integrated arrangement, thus reducing the space occupation, being convenient for installation and more convenient for use and maintenance.

3. The utility model can be widely applied to the filtration and the back resistance of other gas fuel filling equipment.

Drawings

FIG. 1 is a schematic cross-sectional view of a unidirectional filtration apparatus for a hydrogenation apparatus according to the present invention.

Fig. 2 is a schematic sectional structural view of the check valve port of the present invention.

In the above figures, 1 is a valve body, 2 is a check valve port, 3 is a check valve core, 4 is a compression spring, 5 is a rubber seal ring, 6 is a filter core, 7 is a filter port, 8 is an internal thread section, and 9 is a groove.

Detailed Description

The following examples are intended to illustrate the present invention in detail and should not be construed as limiting the scope of the present invention in any way.

In the description of the present invention, it is to be understood that the orientations or positional relationships indicated as referring to the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings only for the convenience of describing technical solutions and simplifying the description, and do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and operations, and thus, are not to be construed as limitations on the technical solutions of the present invention.

Example 1: a one-way filtering device for hydrogenation equipment is shown in figure 1 and comprises a valve body 1, a check assembly, a filtering assembly and a connector.

The check assembly comprises a check valve core 3 and a compression spring 4; the filter assembly comprises a filter element 6; the interface comprises a one-way valve interface 2 and a filtering interface 7 which are correspondingly arranged at two ends of the valve body 1; a one-way valve connector 2, a one-way valve filter element 3, a compression spring 4, a filter element 6 and a filter connector 7 are sequentially arranged in the valve body 1 according to the gas flowing direction; the two ends of the valve body 1 are respectively provided with an internal thread section 8 corresponding to the one-way valve interface 2 and the filtering interface 7, and the one-way valve interface 2 and the filtering interface 7 are also respectively provided with an external thread section matched with the internal thread section 8, so that the one-way valve interface 2 and the filtering interface 7 are connected with the valve body 1 in a screwing manner; the valve body 1, the one-way valve interface 2 and the filtering interface 7 can be fixedly connected through fasteners such as screws, bolts, rivets and the like.

The check valve spool 3 adopts a ball sealing structure, referring to fig. 1 to 2, a groove 9 matched with the ball sealing structure for use is arranged on the end face of the check valve interface 2 contacted with the check valve spool 3, so that when the check valve spool 3 reversely flows, the ball sealing structure is tightly attached to the groove 9, a circulation cavity in the check valve interface 2 structure is completely sealed, and the function of forward conduction and reverse cut-off is realized.

The utility model discloses a filter assembly, including filter element 6, filter core 6, compression spring 4 end, rubber seal ring 5, filter core 6, it is equipped with a single straight-through type filtration structure for the filter assembly, has characteristics such as flow is big, the pressure drop is little and long service life, filter core 6 has multiple filter fineness, easily changes, be equipped with a ring shape recess in the valve body 1 of filter core 6 towards compression spring 4 end be equipped with a rubber seal ring 5 in the ring shape recess, rubber seal ring 5 can be for hydrogenation butadiene-acrylonitrile rubber sealing ring, set up in filter core 6's inlet end department prevents that hydrogen from not directly flowing from the part clearance through filtering, causes the not up to standard condition of hydrogen purity to take place. The components are high-pressure-resistant components, so that the components are prevented from being damaged in the high-pressure hydrogen conveying process and influencing the hydrogen filling process.

The operation and use method of the one-way filtering device for the hydrogenation equipment is as follows:

the one-way filtering device for the hydrogenation equipment is arranged in a pipeline of a hydrogenation machine, the one-way valve end interface 2 is a hydrogen inlet end, when hydrogen is filled into equipment to be filled, the hydrogen is conveyed in the positive direction, at the moment, the pressure of the hydrogen overcomes the resistance of the compression spring 4, the ball sealing structure is pushed open, and the hydrogen flows through the one-way valve core 3, the compression spring 4, the sealing rubber ring 5 and the filter core 6 in sequence in the positive direction and flows out from the filtering interface 7; when the pressure is reversed, the hydrogen pressure presses the spherical sealing structure on the groove 9 to block the hydrogen and prevent the reverse circulation.

The check valve part and the filter part can be respectively maintained and disassembled, and the check valve core, the compression spring and the filter core can be respectively taken out by screwing the check valve interface and the filter interface, so that the check valve core, the compression spring and the filter core can be cleaned or replaced in time.

While the present invention has been described in detail with reference to the drawings and the embodiments, it will be understood by those skilled in the art that various changes in the specific parameters of the embodiments and/or equivalent substitutions for related pipe valve elements, pipe structures and materials may be made without departing from the technical spirit of the present invention, so as to form a plurality of specific embodiments, which are common variations of the present invention and will not be described in detail herein.

Claims (6)

1. A unidirectional filter device for hydrogenation equipment comprises a valve body, and is characterized by also comprising a check component, a filter component and an interface; the check assembly comprises a check valve core and an elastic piece; the filter assembly includes a filter element; the interface including correspond set up in the check valve interface and the filtration interface at valve body both ends, just be equipped with check valve case, elastic component, filter core in proper order according to gas flow direction in the valve body.

2. The unidirectional filtering device for hydrogenation equipment of claim 1, wherein the valve core of the unidirectional valve adopts a ball sealing structure.

3. The one-way filtering device for hydrogenation equipment of claim 2, wherein the one-way valve interface is provided with a groove corresponding to the ball sealing structure.

4. The unidirectional filtration device for a hydrogenation apparatus of claim 1, wherein the filtration assembly is a single stage straight through filtration structure.

5. The unidirectional filtering device for hydrogenation equipment according to claim 1, wherein the valve body is provided with a threaded section which is matched with the one-way valve interface and the filtering interface respectively.

6. The unidirectional filtering device for hydrogenation equipment of claim 1, wherein a groove is arranged in the valve body at the side of the filter element facing the elastic member, and a corresponding sealing ring is arranged in the groove.

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