CN213629298U - Ultrahigh pressure joint of fuel cell automobile hydrogenation station pipeline system - Google Patents
Ultrahigh pressure joint of fuel cell automobile hydrogenation station pipeline system Download PDFInfo
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- CN213629298U CN213629298U CN202121214478.6U CN202121214478U CN213629298U CN 213629298 U CN213629298 U CN 213629298U CN 202121214478 U CN202121214478 U CN 202121214478U CN 213629298 U CN213629298 U CN 213629298U
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Abstract
The utility model discloses a fuel cell car hydrogenation station pipe-line system superhigh pressure connects, it includes the inside joint body that is equipped with the axial runner, set up in the joint this internal connection lantern ring and fixed takeover and set up O type sealing washer and the red copper packing ring on connecting the body, wherein connect the external thread connecting portion that the body set gradually by the axial, transition step portion and female connection portion constitute, be equipped with O type sealing washer on the terminal surface that compresses tightly of external thread connecting portion in annular groove and this annular groove, be equipped with the red copper packing ring on the terminal surface that compresses tightly of transition step portion, high-pressure pipeline through the connection lantern ring of mutual spiro union and fixed takeover seal spiro union on connecting body female connection portion and this high-pressure pipeline give vent to anger and hold and connect this internal axial runner inlet end pressure tight. The utility model is suitable for a high pressure environment more than 70MPa uses, adopts O type sealing washer and the two-way axial seal of red copper packing ring, is fit for the test occasion of frequent dismouting.
Description
Technical Field
The utility model belongs to the technical field of fuel cell pressure element, concretely relates to fuel cell car hydrogenation station pipe-line system superelevation crimping head.
Background
With the application of gas energy, the application occasions of high-pressure and ultrahigh-pressure gas are gradually increased, for example, in the application of hydrogen and natural gas in various regions in recent years, in the process of storing and transmitting the high-pressure gas, the two pipelines need to be connected in a switching way except for welding, so that the use safety of the high-pressure gas and the convenience of field pipeline installation are ensured during use; the existing O-shaped ring sealing joint with the pressure of less than 20MPa and the conical surface sealing joint with the medium pressure of 20-70MPa have less use of more than 70MPa and have unsatisfactory sealing effect.
The existing joint also has certain defects: 1. the sealing effect is not ideal, and leakage exists, for example, the high-pressure joint in the high-pressure 20-70MPa market adopts conical surface sealing, so that the conical surface of the high-pressure joint is abraded when the high-pressure joint is frequently disassembled and assembled, and frequent maintenance is needed; 2. the use pressure is limited, and the O-shaped sealing ring joint with the pressure of less than 20MPa cannot be used at the high pressure of more than 70 MPa; the connection modes and the sizes of a pressure gauge, a pressure sensor, a safety valve and the like on a pipeline required by the fuel cell and a high-pressure pipeline are different, and different adapters need to be equipped, so that the economic cost is increased for users. There is therefore a need for a coupling that achieves ultra high pressures.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the utility model is to provide a fuel cell car hydrogenation station pipeline system ultrahigh pressure joint with reasonable structural design and higher use safety, which can be simply, conveniently and effectively connected through pipe threads by adopting a mode of combined sealing of an O-shaped sealing ring and a red copper gasket, thereby realizing the use of the ultrahigh pressure joint in an ultrahigh pressure environment; the radial end face of the body is placed through the O-shaped sealing ring, so that the gas is prevented from seeping from the first end face in the testing process; the end face of the body and the tested piece is placed through the red copper gasket, so that the testing process is ensured, gas is prevented from seeping out of the end face of the second channel, the bidirectional axial sealing is realized through the O-shaped sealing ring and the red copper gasket combined sealing structure, and the use safety of the ultrahigh pressure joint is effectively ensured.
The utility model adopts the following technical proposal for solving the technical problems, a fuel cell automobile hydrogenation station pipeline system ultrahigh pressure joint, it is characterized by comprising a joint body, a connecting lantern ring and a fixed connecting pipe which are arranged in the joint body, an O-shaped sealing ring and a red copper gasket which are arranged on the joint body, wherein the joint body comprises the external thread connecting portion that the axial set gradually, transition step portion and female connection portion, be equipped with annular groove and install O type sealing washer in this annular groove on the terminal surface that compresses tightly of external thread connecting portion, be equipped with the red copper packing ring on the terminal surface that compresses tightly of transition step portion, high-pressure pipeline through the connection lantern ring of mutual spiro union and fixed takeover seal spiro union connect on joint body female connection portion and this high-pressure pipeline give vent to anger the end and connect this internal axial runner inlet end pressure tight seal cooperation of body.
Further inject, the connection sleeve ring is the connection body that has internal thread structure and external screw thread structure simultaneously, the sealed spiro union of high pressure pipeline link external screw thread is inside the connection sleeve ring, fixed takeover comprises threaded connection portion and the screwing installation department that the axial set gradually, this threaded connection portion and screwing installation department inboard are equipped with the high pressure pipeline lumen that link up each other and are equipped with the internal thread structure that matches with connection sleeve ring external screw thread in the threaded connection portion inboard, the external seal spiro union of connection sleeve ring is inboard in fixed takeover threaded connection portion, the sealed spiro union in fixed takeover threaded connection portion outside is on connecting body internal thread connection portion, the fixed takeover screws up the installation department and is used for realizing the screwing up installation of fixed takeover and.
Further inject, axial runner inlet end and high-pressure pipeline in the joint body give vent to anger the end and be the sphere transition structure that matches for realize that the high-pressure pipeline gives vent to anger the end and forms annular face seal structure with the axial runner inlet end in the joint body, strengthen sealed effect, and then satisfy the operation requirement of many times dismouting.
Further, a radial leakage hole for leakage detection and verification of installation is formed in the internal thread connecting portion, adjacent to the transition step portion, of the joint body.
Compared with the prior art, the utility model following beneficial effect has: 1. the utility model is suitable for the use in the high pressure environment of more than 70 MPa; 2. the utility model adopts the O-shaped sealing ring and the red copper gasket to carry out bidirectional axial sealing, thereby being suitable for the test occasion of frequent disassembly and assembly; 3. the utility model discloses combine reasonable in design and dismouting convenient to use, high-pressure pipeline gives vent to anger the end and connects body axial runner inlet end and form the toroidal surface seal structure, effectively strengthens sealed effect, and then can satisfy the operation requirement of a lot of dismouting.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-joint body, 101-external thread connecting part, 102-transition step part, 103-internal thread connecting part, 104-annular groove, 105-axial flow channel, 106-spherical transition structure, 107-radial seepage hole, 2-connecting lantern ring, 3-fixed connecting pipe, 301-thread connecting part, 302-screwing installation part, 303-high-pressure pipeline cavity, 4-O-shaped sealing ring and 5-copper gasket.
Detailed Description
The technical scheme of the invention is described in detail with reference to the attached drawings, as shown in figure 1, an ultrahigh pressure joint of a pipeline system of a hydrogenation station of a fuel cell automobile, which comprises a joint body 1 with an axial flow passage inside, a connecting lantern ring 2 and a fixed connecting pipe 3 which are arranged in the joint body 1, an O-shaped sealing ring 4 and a red copper gasket 5 which are arranged on the joint body 1, wherein connect body 1 by the axial external screw thread connecting portion 101 that sets gradually, transition step portion 102 and female connection portion 103 constitute, be equipped with annular groove 104 and install O type sealing washer 4 in this annular groove 104 on the terminal surface that compresses tightly of external screw thread connecting portion 101, be equipped with red copper packing ring 5 on the terminal surface that compresses tightly of transition step portion 102, high-pressure pipeline through the connecting collar 2 of mutual spiro union and fixed takeover 3 sealed spiro union on connecting body 1 female connection portion 103 and this high-pressure pipeline give vent to anger the end and connect body 1 interior axial runner 105 air inlet end pressure tight seal cooperation.
Connecting collar 2 is the connecting tube body that has internal thread structure and external thread structure simultaneously, high-pressure pipeline connection end external thread sealing spiro union is inside connecting collar 2, fixed takeover 3 comprises threaded connection portion 301 and the tightening installation department 302 that sets gradually by the axial, this threaded connection portion 301 and the tightening installation department 302 inboard are equipped with the high-pressure pipeline lumen 303 that link up each other and are equipped with the internal thread structure that matches with the 2 external threads of connecting collar in threaded connection portion 301 inboard, 2 external seal spiro unions of connecting collar are inboard in 3 threaded connection portions 301 of fixed takeover, 3 threaded connection portion 301 outside sealing spiro unions of fixed takeover are on connecting 1 internal thread connection portion 103 of body, 3 tightening installation departments 302 of fixed takeover are used for realizing fixed takeover 3 and the installation of screwing up that connects body 1.
Connect in body 1 axial runner 105 inlet end and high-pressure pipeline to give vent to anger the sphere transition structure 106 of holding for matching for realize that high-pressure pipeline gives vent to anger the end and forms annular surface seal structure with connecting body 1 axial runner 105 inlet end, the sealed effect of reinforcing, and then satisfy the operation requirement of many times dismouting.
Be equipped with on the female connection portion 103 of neighbouring transition step portion 102 in the joint body 1 and be used for carrying out leak testing and the radial hole 107 that oozes of verifying to the installation.
In the use process of the utility model, when the external thread connecting part of the joint body is connected with the internal thread of the sample piece, the O-shaped sealing ring on the compression end face of the external thread connecting part of the joint body and the red copper gasket on the compression end face of the transition step part of the joint body are respectively contacted and sealed with the end face of the sample piece to form bidirectional axial sealing, which is suitable for the use in high-pressure environment above 70MPa and is also suitable for the test occasion of frequent disassembly and assembly; the utility model discloses a high-pressure pipeline gives vent to anger the end and connects this internal axial runner inlet end of body and form toroidal seal structure, high-pressure pipeline seals the screw thread inside the connecting sleeve ring, high-pressure pipeline arranges fixed adapter in with the connecting sleeve ring and connects on this internal threaded connection portion of body through the thread seal spiro union, make its high-pressure pipeline give vent to anger the end and connect this internal axial runner inlet end sphere contact of body and compress tightly sealed cooperation, can play better sealed effect, and then can satisfy the operation requirement of many times dismouting, and or for the pipeline provides high pressure joint in hydrogen station and the on-vehicle hydrogen supply system.
The foregoing shows and describes the general principles of the present invention, with its principal features and advantages, and further, various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides a fuel cell car hydrogenation station pipe-line system superelevation crimping head, its characterized in that is including the inside joint body that is equipped with the axial runner, set up in the joint this internal connection lantern ring and fixed takeover and set up O type sealing washer and the red copper packing ring on connecting the body, wherein connect the external thread connecting portion that the body set gradually by the axial, transition step portion and female connection portion constitute, be equipped with annular groove and install O type sealing washer in this annular groove on the terminal surface that compresses tightly of external thread connecting portion, be equipped with the red copper packing ring on the terminal surface that compresses tightly of transition step portion, high-pressure pipeline through the connection lantern ring of mutual spiro union and fixed takeover sealed spiro union on connecting body female connection portion and this high-pressure pipeline give vent to anger the end and connect.
2. The fuel cell vehicle hydrogen station piping system ultrahigh pressure joint of claim 1, characterized in that: the connecting sleeve ring is the connecting pipe body that has internal thread structure and external thread structure simultaneously, the sealed spiro union of high pressure pipeline link external screw thread is inside connecting sleeve ring, fixed takeover comprises the threaded connection portion and the installation department of screwing up that the axial set gradually, this threaded connection portion and the installation department of screwing up inboard are equipped with the high pressure pipeline lumen that link up each other and are equipped with the internal thread structure that matches with the connecting sleeve ring external screw thread in the threaded connection portion inboard, the outside seal spiro union of connecting sleeve ring is inboard in fixed takeover threaded connection portion, the sealed spiro union in fixed takeover threaded connection portion outside connects on connecting body internal thread connection portion, the installation department of screwing up of fixed takeover is used for realizing the screwing.
3. The fuel cell vehicle hydrogen station piping system ultrahigh pressure joint of claim 1, characterized in that: the axial flow passage air inlet end in the joint body and the high-pressure pipeline air outlet end are matched spherical transition structures, and the high-pressure pipeline air outlet end and the axial flow passage air inlet end in the joint body form an annular surface sealing structure, so that the sealing effect is enhanced, and the use requirements of repeated disassembly and assembly are further met.
4. The fuel cell vehicle hydrogen station piping system ultrahigh pressure joint of claim 1, characterized in that: and a radial seepage hole for performing leakage detection and verification on installation is arranged on the internal thread connecting part adjacent to the transition step part in the joint body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121214478.6U CN213629298U (en) | 2021-06-02 | 2021-06-02 | Ultrahigh pressure joint of fuel cell automobile hydrogenation station pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121214478.6U CN213629298U (en) | 2021-06-02 | 2021-06-02 | Ultrahigh pressure joint of fuel cell automobile hydrogenation station pipeline system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213629298U true CN213629298U (en) | 2021-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121214478.6U Active CN213629298U (en) | 2021-06-02 | 2021-06-02 | Ultrahigh pressure joint of fuel cell automobile hydrogenation station pipeline system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213629298U (en) |
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2021
- 2021-06-02 CN CN202121214478.6U patent/CN213629298U/en active Active
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