CN220601222U - Hydrogenation port and hydrogen storage system - Google Patents
Hydrogenation port and hydrogen storage system Download PDFInfo
- Publication number
- CN220601222U CN220601222U CN202322379658.5U CN202322379658U CN220601222U CN 220601222 U CN220601222 U CN 220601222U CN 202322379658 U CN202322379658 U CN 202322379658U CN 220601222 U CN220601222 U CN 220601222U
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- China
- Prior art keywords
- valve
- valve seat
- cavity
- hydrogen
- assembled
- Prior art date
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000001257 hydrogen Substances 0.000 title claims abstract description 50
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 50
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The utility model discloses a hydrogenation port and a hydrogen storage system, which comprises a shell, a valve seat, a filter module, a valve core and an elastic piece, wherein the shell comprises a valve body and a valve cover which are in hard sealing connection, the shell is provided with an inlet and an outlet, the valve seat is assembled in the shell and is assembled between the valve body and the valve cover in a hard sealing way, the valve seat divides an inner cavity of the shell into a first cavity and a second cavity, the inlet is communicated with the first cavity, the outlet is communicated with the second cavity, the filter module is assembled in the first cavity and is used for filtering hydrogen entering through the inlet, the filter module comprises a plurality of layers of filter screens, the filter holes of two adjacent layers of filter screens are arranged in a staggered way, the valve core can be assembled in the second cavity in an axial sliding way, the elastic piece is assembled between the valve core and the valve cover, and the elastic piece is used for elastically pushing the valve core to the valve seat so as to close the hydrogen port through contact of the valve seat and the valve core when hydrogen is not filled. The hydrogenation port has the advantages of good sealing reliability, difficult leakage, good filterability and capability of meeting the filling requirement of high-pressure hydrogen.
Description
Technical Field
The utility model relates to the technical field of hydrogen filling, in particular to a hydrogenation port and a hydrogen storage system using the hydrogenation port.
Background
The fuel cell is a device for directly converting chemical energy into electric energy, and has the advantages of high energy conversion efficiency, small pollution, wide fuel source, low noise, high reliability, convenient maintenance and the like. Currently, some fuel cells of new energy automobiles are equipped with a vehicle-mounted hydrogen storage system, and the vehicle-mounted hydrogen storage system generally comprises a hydrogenation port, a high-pressure gas cylinder, a bottleneck combination valve, a pressure reducing valve, a safety valve, a pressure sensor and the like. The hydrogenation port is a core part of the vehicle-mounted hydrogen storage system and is mainly used for being in butt joint with the hydrogenation gun, so that the filling of the vehicle-mounted hydrogen storage bottle can be realized. However, the hydrogenation port in the related art has the problems of poor sealing reliability, easy leakage, incapability of meeting the filling requirement of high-pressure hydrogen, poor filterability and the like.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems in the related art to some extent.
Therefore, the embodiment of the utility model provides the hydrogenation port, which has good sealing reliability, is not easy to leak, meets the filling requirement of high-pressure hydrogen and has good filterability.
The embodiment of the utility model also provides a hydrogen storage system comprising the hydrogenation port.
The hydrogenation port of the embodiment of the utility model comprises:
the shell comprises a valve body and a valve cover which are in hard sealing connection, and the shell is provided with an inlet and an outlet;
the valve seat is assembled in the shell and is assembled between the valve body and the valve cover in a hard sealing way, the valve seat divides the inner cavity of the shell into a first cavity and a second cavity, the inlet is communicated with the first cavity, and the outlet is communicated with the second cavity;
the filtering module is assembled in the first cavity and used for filtering the hydrogen entering through the inlet, the filtering module comprises a plurality of layers of filter screens, and the filtering holes of two adjacent layers of filter screens are arranged in a staggered mode;
the valve core is axially slidably assembled in the second cavity, the elastic piece is assembled between the valve core and the valve cover, and the elastic piece is used for elastically pushing the valve core to the valve seat so as to close the hydrogen port through contact between the valve seat and the valve core when hydrogen is not filled.
The hydrogenation port provided by the embodiment of the utility model has the advantages of good sealing reliability, difficult leakage, good filterability and capability of meeting the filling requirement of high-pressure hydrogen.
In some embodiments, the filter module includes a support, the support is fixed in the first chamber, the support is provided with an overflow hole, the overflow hole is used for allowing hydrogen flowing in from the inlet to flow to the outlet, and multiple layers of filter screens are wrapped in the support and used for filtering the hydrogen entering the overflow hole.
In some embodiments, the support comprises a diversion portion, a supporting portion and a connecting portion, wherein the supporting portion is connected between the diversion portion and the connecting portion, the diversion portion is used for being opposite to the inlet to guide airflow, the plurality of layers of filter screens are wrapped on the outer peripheral side of the supporting portion, and at least part of the connecting portion is matched in the valve seat and fixedly connected with the valve seat.
In some embodiments, a plurality of the overflow holes are arranged, and the plurality of the overflow holes are uniformly distributed on the supporting part in an array shape;
and/or, the connecting part is assembled in the valve seat in a threaded manner.
In some embodiments, a necked-in hole is provided between the inlet and the first chamber, the radial dimension of the inlet and the radial dimension of the first chamber being greater than the aperture of the necked-in hole.
In some embodiments, a conical hole is formed in the valve seat, the conical hole is formed in one side, facing the valve core, of the valve seat, a spherical surface is arranged on the valve core, and the valve core closes the hydrogen port through the fit between the spherical surface and the hole wall of the conical hole.
In some embodiments, the valve seat is made of metal, and the valve core is made of plastic.
In some embodiments, the outer peripheral side of the valve seat is provided with an annular protrusion which extends along the circumferential direction of the valve seat to be closed, the annular protrusion is clamped between the valve body and the valve cover, and the annular protrusion is in hard sealing connection with the valve body and the valve cover.
In some embodiments, the hydrogenation port comprises a nut that is sleeved on the outer peripheral side of the valve body;
and/or the hydrogenation port comprises a first sealing ring and a second sealing ring, the first sealing ring and the second sealing ring are assembled in the inlet, the second sealing ring is positioned between the first sealing ring and the first cavity, and the two sides of the second sealing ring are both provided with check rings.
The hydrogen storage system of the embodiment of the utility model comprises a gas cylinder and the hydrogenation port in any embodiment, wherein the hydrogenation port is assembled on the gas cylinder.
Drawings
FIG. 1 is a schematic cross-sectional view of a hydrogenation port according to an embodiment of the utility model.
Fig. 2 is a schematic perspective view of the valve seat of fig. 1.
Reference numerals:
a valve body 1; a bracket 2; a filter screen 3; a valve seat 4; a valve core 5; an elastic member 6; a valve cover 7; a nut 8; a first seal ring 9; a second seal ring 10; a retainer ring 11; an annular convex portion 12; a first chamber 13; a second chamber 14; an inlet 15; an outlet 16; a necking hole 17; a split flow section 18; a support portion 19; a connection portion 20; and an overflow hole 21.
Detailed Description
Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
As shown in fig. 1, the hydrogenation port of the embodiment of the present utility model includes a housing (not shown), a valve seat 4, a filter module, a valve cartridge 5, and an elastic member 6.
The casing includes valve body 1 and valve gap 7, and the material of valve body 1 and valve gap 7 all can be austenitic stainless steel 316L material, and valve body 1 and valve gap 7 can be installed fixedly through the mode of screw assembly, and hard seal connection between valve body 1 and the valve gap 7, for example, the material of valve body 1 and valve gap 7 all can be metal, and realizes hard seal through modes such as screw fit, interference fit between valve body 1 and the valve gap 7. As shown in fig. 1, the housing may be generally cylindrical and extend in a generally left-right direction, the left side port of the housing may form the inlet 15, and the right side port of the housing may form the outlet 16.
The valve seat 4 is fitted in the housing and is fitted between the valve body 1 and the valve cover 7 with a hard seal, and the valve seat 4 divides the inner cavity of the housing into a first cavity 13 and a second cavity 14, the inlet 15 communicates with the first cavity 13, and the outlet 16 communicates with the second cavity 14.
For example, as shown in fig. 1, the valve seat 4 may be generally annular, the valve seat 4 may be assembled in a housing, the outer peripheral wall of the valve seat 4 may be integrally formed with an annular protrusion 12, the annular protrusion 12 extends and closes along the circumferential direction of the valve seat 4, the annular protrusion 12 is clamped between the valve body 1 and the valve cover 7, and the annular protrusion 12 and the valve body 1 and the valve cover 7 may be assembled in a hard sealing manner by means of abutting contact.
The valve seat 4 may divide the inner cavity of the housing into two relatively independent chambers, namely a first chamber 13 and a second chamber 14, wherein the first chamber 13 may be located at the left side of the valve seat 4 and communicated with the inlet 15, the second chamber 14 may be located at the right side of the valve seat 4 and communicated with the outlet 16, and the first chamber 13 and the second chamber 14 may be communicated through the inner hole of the valve seat 4.
As shown in fig. 1, the filtration module is assembled in the first chamber 13 and is used for filtering the hydrogen entering through the inlet 15, the filtration module comprises a plurality of layers of filter screens 3, and the filter holes of two adjacent layers of filter screens 3 are arranged in a staggered manner. For example, the filter screen 3 may be cylindrical, the multi-layer filter screen 3 may be sleeved layer by layer in the inner and outer directions, and the filter holes of any two adjacent layers of filter screens 3 may be arranged in a staggered manner in the inner and outer directions, so that the aperture of the filter holes may be further reduced, and the filter path in the multi-layer filter screen 3 may be bent, thereby improving the filter effect.
Alternatively, the filter screen 3 may be a three-layer stainless steel sintered filter screen 3.
As shown in fig. 1, the valve core 5 is slidably assembled in the second chamber 14 in an axial direction (left-right direction), the elastic member 6 is assembled between the valve core 5 and the valve cover 7, the elastic member 6 may be a spring and may be installed on the right side of the valve core 5, wherein the left end of the elastic member 6 may be in abutting contact with the valve core 5, and the right end of the elastic member 6 may be in abutting contact with the valve cover 7. In the use process, the elastic piece 6 can elastically push the valve core 5 on the valve seat 4, so that a hydrogen port can be closed through the contact between the valve seat 4 and the valve core 5 when hydrogen is not filled, and the leakage of the filled hydrogen is avoided.
According to the hydrogenation port, the valve seat 4, the valve body 1 and the valve cover 7 are sealed and assembled in a hard sealing mode, the situation that sealing is invalid due to the fact that sealing rings are adopted for sealing in the related technology and are easy to age is avoided, the situation that hydrogen is easy to leak and permeate is avoided, and the durability and the reliability of sealing are guaranteed.
And secondly, the hard sealing mode can bear the action of increased pressure, so that the condition that hydrogen is easy to burst when the pressure of the filled hydrogen is large in the related technology is avoided, and the filling requirement of high-pressure hydrogen is met.
In addition, through setting up multilayer dislocation arrangement's filter screen 3, guaranteed the filter effect, and then promoted the filling quality of hydrogen.
In some embodiments, the filter module includes a bracket 2, as shown in fig. 2, the bracket 2 may be generally cylindrical, and the bracket 2 is fixed in the first cavity 13, for example, the bracket 2 may be fixedly connected to the valve body 1, and the bracket 2 may also be fixedly connected to the valve seat 4. The support 2 is provided with an overflow hole 21, and the overflow hole 21 can penetrate through the support 2 along the radial direction of the support 2. The multi-layer filter screen 3 of the filter module can be wrapped on the outer peripheral side of the bracket 2, and the multi-layer filter screen 3 can seal the inlet of the overflow hole 21 on the bracket 2. The support 2 may be provided to support the screen 3.
In use, hydrogen gas entering from inlet 15 may first be filtered by multilayer screen 3, and the filtered hydrogen gas may enter into holder 2 via flowthrough aperture 21 and then may flow along the inner bore of holder 2 into second chamber 14. Thereby meeting the use requirement of air intake.
In some embodiments, the support 2 includes a flow dividing portion 18, a supporting portion 19, and a connecting portion 20, the supporting portion 19 is connected between the flow dividing portion 18 and the connecting portion 20, the flow dividing portion 18 is opposite to the inlet 15 to guide the airflow, the multi-layer filter screen 3 is wrapped around the outer peripheral side of the supporting portion 19, and at least part of the connecting portion 20 is fitted in the valve seat 4 and is fixedly connected with the valve seat 4.
For example, as shown in fig. 2, the flow dividing portion 18 may be substantially plate-shaped, the flow dividing portion 18 may be integrally formed at a left side of the supporting portion 19, and both the supporting portion 19 and the connecting portion 20 may be substantially circular cylindrical, wherein a radial dimension of the supporting portion 19 is larger than a radial dimension of the connecting portion 20, and the flow-through hole 21 may be disposed on the supporting portion 19.
During installation, the bracket 2 and the valve seat 4 can be installed and fixed through the connecting part 20, and the installation and fixation modes can be screw thread assembly, fastener fixation, welding, bonding and the like. The multi-layer screen 3 may be wrapped around the outer peripheral side of the support 19. In use, the flow dividing portion 18 can function to divide the incoming hydrogen gas, thereby simplifying the flow rate and achieving uniform distribution of the hydrogen gas.
Preferably, the connection portion 20 is threadedly fitted within the valve seat 4. Thereby facilitating installation and removal.
In some embodiments, as shown in fig. 2, a plurality of through holes 21 are provided, and the plurality of through holes 21 are uniformly distributed in the support portion 19 in an array shape. Therefore, the gas flow area can be effectively increased, the flow resistance is reduced, and the hydrogenation efficiency can be improved.
In some embodiments, as shown in FIG. 1, a necked-down aperture 17 is provided between the inlet 15 and the first chamber 13, with both the radial dimension of the inlet 15 and the radial dimension of the first chamber 13 being greater than the aperture of the necked-down aperture 17. The necking hole 17 is opposite to the flow dividing part 18, and the flow velocity of the air flow in the necking hole 17 is large, so that the hydrogen can be sufficiently divided under the action of the flow dividing part 18.
In some embodiments, the valve seat 4 is provided with a conical hole, the conical hole is arranged on one side of the valve seat 4 facing the valve core 5, the valve core 5 is provided with a spherical surface, and the valve core 5 closes the hydrogen port through the fit between the spherical surface and the wall of the conical hole. Specifically, the right side of disk seat 4 is located to the bell mouth, and the aperture in bell mouth becomes progressively larger along the direction from left to right, and the sphere can be the left end face of case 5, can promote guiding effect and complex precision by the cooperation of sphere and bell mouth, and is adaptive promptly good, and then can guarantee the leakproofness.
The valve body 5 may be provided with a plurality of through holes, and the plurality of through holes may communicate the inner hole of the valve body 5 with the second chamber 14 on the outer peripheral side of the valve body, whereby the hydrogen gas flowing into the second chamber 14 via the valve seat 4 may enter the valve body 5 through the plurality of through holes and may then flow to the outlet 16.
In some embodiments, the valve seat 4 is made of metal, and the valve core 5 is made of plastic. Thereby ensuring a sealing effect.
In some embodiments, as shown in fig. 1, the hydrogenation port includes a nut 8, and the nut 8 is sleeved on the outer circumferential side of the valve body 1. The nut 8 is used for facilitating the installation and fixation of the hydrogenation port.
In some embodiments, as shown in fig. 1, the hydrogenation port includes a first seal ring 9 and a second seal ring 10, the first seal ring 9 and the second seal ring 10 are both assembled in the inlet 15, the second seal ring 10 is located between the first seal ring 9 and the first cavity 13, i.e., the first seal ring 9 may be disposed on the left side of the second seal ring 10, and the size specification of the first seal ring 9 may be larger than the size specification of the second seal ring 10. Both sides of the second sealing ring 10 are equipped with a retainer ring 11. Therefore, when the air gun is connected with the hydrogenation port, the tightness of the connection can be ensured.
The hydrogen storage system of the embodiment of the present utility model is described below.
The hydrogen storage system provided by the embodiment of the utility model comprises the gas cylinder and the hydrogenation port, wherein the hydrogenation port can be the hydrogenation port described in any embodiment, and the hydrogen storage system comprises the hydrogen storage gas cylinder, and the hydrogenation port is assembled on the hydrogen storage gas cylinder. It should be noted that the hydrogen storage system may be a vehicle-mounted hydrogen storage system, and of course, may be other types of hydrogen storage systems.
While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.
Claims (10)
1. A hydrogenation port comprising:
the shell comprises a valve body and a valve cover which are in hard sealing connection, and the shell is provided with an inlet and an outlet;
the valve seat is assembled in the shell and is assembled between the valve body and the valve cover in a hard sealing way, the valve seat divides the inner cavity of the shell into a first cavity and a second cavity, the inlet is communicated with the first cavity, and the outlet is communicated with the second cavity;
the filtering module is assembled in the first cavity and used for filtering the hydrogen entering through the inlet, the filtering module comprises a plurality of layers of filter screens, and the filtering holes of two adjacent layers of filter screens are arranged in a staggered mode;
the valve core is axially slidably assembled in the second cavity, the elastic piece is assembled between the valve core and the valve cover, and the elastic piece is used for elastically pushing the valve core to the valve seat so as to close the hydrogen port through contact between the valve seat and the valve core when hydrogen is not filled.
2. The hydrogenation port according to claim 1, wherein the filter module comprises a support, the support is fixed in the first cavity, an overflow hole is formed in the support, the overflow hole is used for allowing hydrogen flowing in from the inlet to flow to the outlet, and a plurality of layers of filter screens are wrapped in the support and used for filtering the hydrogen entering the overflow hole.
3. The hydrogenation port according to claim 2, wherein the support comprises a flow dividing portion, a supporting portion and a connecting portion, the supporting portion is connected between the flow dividing portion and the connecting portion, the flow dividing portion is used for being opposite to the inlet to guide the airflow, the plurality of layers of the filter screen are wrapped on the outer peripheral side of the supporting portion, and at least part of the connecting portion is matched in the valve seat and is fixedly connected with the valve seat.
4. The hydrogenation port according to claim 3, wherein a plurality of the overflow holes are provided, and the plurality of the overflow holes are uniformly distributed in the support part in an array;
and/or, the connecting part is assembled in the valve seat in a threaded manner.
5. A hydrogenation port according to claim 3 wherein a neck aperture is provided between said inlet and said first chamber, the radial dimension of said inlet and the radial dimension of said first chamber being greater than the aperture of said neck aperture.
6. The hydrogenation port according to claim 1, wherein a tapered hole is provided in the valve seat, the tapered hole is provided on a side of the valve seat facing the valve core, the valve core is provided with a spherical surface, and the valve core closes the hydrogen port by attaching the spherical surface to a wall of the tapered hole.
7. The hydrogenation port according to claim 6, wherein the valve seat is made of metal and the valve core is made of plastic.
8. The hydrogenation port according to claim 1, wherein an annular protrusion is provided on an outer peripheral side of the valve seat, the annular protrusion is closed along a circumferential extension of the valve seat, the annular protrusion is clamped between the valve body and the valve cover, and the annular protrusion is in hard sealing connection with both the valve body and the valve cover.
9. The hydrogenation port according to any one of claims 1 to 8, comprising a nut that is fitted around the outer peripheral side of the valve body;
and/or, including first sealing washer and second sealing washer, first sealing washer with the second sealing washer all assemble in the import, the second sealing washer is located first sealing washer with between the first chamber, just the both sides of second sealing washer all are equipped with the retaining ring.
10. A hydrogen storage system comprising a gas cylinder and a hydrogenation port according to any one of claims 1-9, said hydrogenation port being fitted to said gas cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322379658.5U CN220601222U (en) | 2023-09-01 | 2023-09-01 | Hydrogenation port and hydrogen storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322379658.5U CN220601222U (en) | 2023-09-01 | 2023-09-01 | Hydrogenation port and hydrogen storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220601222U true CN220601222U (en) | 2024-03-15 |
Family
ID=90172216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322379658.5U Active CN220601222U (en) | 2023-09-01 | 2023-09-01 | Hydrogenation port and hydrogen storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220601222U (en) |
-
2023
- 2023-09-01 CN CN202322379658.5U patent/CN220601222U/en active Active
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| GR01 | Patent grant |