Bidirectional flow snap valve suitable for hydrogenation operation
By incorporating a movable through-hole, an inner convex ring, an outer convex ring, and a breaking force spring into the hydrogenation break valve, the problem of automatic disconnection under high-pressure gas conditions is solved, achieving stable connection and reliable disconnection under high-pressure conditions, thus improving safety and applicability.
Patent Information
- Application Number
- CN202320722007.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-04
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2033-04-04
AI Technical Summary
Existing hydrogenation disconnect valves are prone to automatic disconnection under high-pressure gas conditions, resulting in malfunction and posing a safety hazard.
By setting a movable through hole, an inner convex ring, an outer convex ring, and a breaking force spring between the connector and the break body, the force balance of the connector under high pressure gas is ensured, and reliable disconnection is achieved under external force. The stability and safety of the connection are ensured by the cooperation of the claw and the outer sleeve.
Maintaining the stability of the connection under high-pressure gas conditions prevents automatic disconnection, improves the safety and applicability of the breakaway valve, ensures reliable disconnection in emergency situations, and prevents hydrogen leakage.
Smart Images
Figure CN223855111U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of breakaway valve technology, and more specifically, to a bidirectional flow breakaway valve suitable for hydrogenation operations. Background Technology
[0002] A breakaway valve is used in new energy equipment during refueling. After refueling, if the refueling pipeline is accidentally pulled or mishandled, the breakaway valve can shut off the pipeline in both directions, preventing the refueled hydrogen from leaking into the surrounding environment and causing a safety accident. In the prior application number 202221704483X, patented as "A Bidirectional Flow Hydrogen Refueling Breakaway Valve," a connecting body is slidably fitted onto the inlet connector, and a retaining pawl on the outer sleeve is used to ensure the breakaway body abuts against the connecting body. A breakaway spring is used to connect the connecting body, increasing the external force threshold for disconnection, preventing accidental disconnection, and ensuring timely disconnection in emergency situations. However, in actual use, because the connector is a sliding type, when high-pressure gas is introduced, the connector and the air inlet will move away from each other under the action of gas pressure, which will cause the claw to gradually break away from the restriction of the outer sleeve. When the gas pressure is higher than the limit value, the claw will completely break away from the restriction of the outer sleeve, causing the connector to break away from the break-off body. This results in the problem that the break-off valve cannot be used normally under the condition of high-pressure gas supply. Utility Model Content
[0003] The purpose of this invention is to provide a bidirectional flow breakaway valve suitable for hydrogenation operations, in order to solve the problems mentioned in the background art.
[0004] The embodiments of this utility model are achieved through the following technical solution: a bidirectional flow breakaway valve suitable for hydrogenation operations, comprising:
[0005] An air intake connector, the outer wall of which is slidably fitted with a connecting body;
[0006] An air outlet connector is fixedly connected to a pull-off body, and the outer wall of the pull-off body is provided with a groove.
[0007] A pair of valve cores, which are respectively disposed in the connecting body and the inner cavity of the breakaway body, and the ends of the pair of valve cores abut against each other;
[0008] A fixing body, fixedly disposed on the outer wall of the connecting body, has a movable through hole arranged radially therein, and a locking claw is slidably disposed within the movable through hole, the locking claw matching a locking groove; and...
[0009] A fixed sleeve is fixedly mounted on the outer wall of the air intake connector. The end of the fixed sleeve away from the air intake connector has an inner convex ring that slides in contact with the outer wall of the connecting body. The outer wall of the connecting body near the air intake connector has an outer convex ring that slides in contact with the inner wall of the fixed sleeve. A movable cavity is formed between the inner wall of the fixed sleeve, the outer wall of the connecting body, the inner convex ring, and the outer convex ring. A tensile spring is arranged axially in the movable cavity. The end of the fixed sleeve away from the connecting body has an outer sleeve seat. The inner wall of the outer sleeve seat contacts the outer end face of the claw, and the claw is pressed against the slot through the outer sleeve seat so that the ends of the connecting body and the tensile body are tightly pressed together.
[0010] The connecting body has several through holes on its outer wall that connect to the movable cavities. A first sealing ring is provided at the junction of the connecting body and the air inlet connector. A second sealing ring is provided between the inner convex ring and the outer wall of the connecting body. A third sealing ring is provided between the outer convex ring and the inner wall of the fixing sleeve. Let the radius of the inner wall at the junction of the connecting body and the air inlet connector be R1, the radius of the outer wall in sliding contact with the inner convex ring be R2, and the radius of the outer wall of the outer convex ring be R3. Then R1 2 +R2 2 =R3 2 .
[0011] A retaining ring is provided to fill the gap between the outer convex ring and the fixed sleeve. The retaining ring is fixedly connected to the fixed sleeve, and the outer convex ring and the retaining ring are in sliding contact. A fourth sealing ring is provided between the retaining ring and the fixed sleeve.
[0012] The outer sleeve is slidably disposed on the outer wall of the fixed sleeve, and a locking element is disposed between the outer sleeve and the fixed sleeve to lock the outer sleeve.
[0013] The inner wall of the outer sleeve is provided with a first inclined surface, and the outer end face of the claw is provided with a second inclined surface that matches the first inclined surface, and the first inclined surface and the second inclined surface slide in contact.
[0014] The outer sleeve is provided with a ring stop at the end away from the fixed sleeve, and the outer end face of the claw is provided with a limit cover, the diameter of which is larger than the diameter of the movable through hole.
[0015] The locking element includes a screw hole disposed on the outer wall of the connecting body, a fixing hole disposed on the outer sleeve seat, and a bolt that passes through the fixing hole and the screw hole to lock the outer sleeve seat.
[0016] Both the connecting body and the inner cavity of the breakaway body are equipped with valve core supports. The pair of valve cores are correspondingly arranged on the valve core supports. A one-way valve spring is provided axially between the valve core and the valve core support. The valve core is conical and has an annular groove on its outer wall. A fifth sealing ring is arranged in the annular groove. The one-way valve spring is connected to the large end face of the valve core. The inner walls of the connecting body and the breakaway body are respectively provided with conical holes that match the valve cores. The small end face of the valve core is equipped with a top-connecting column. The top-connecting columns of the pair of valve cores abut against each other.
[0017] The outer wall of the pull-out sleeve is provided with a first protective ring, the outer wall of the outer sleeve is provided with a second protective ring, and the outer wall of the fixing sleeve is provided with a third protective ring.
[0018] A sixth sealing ring is provided between the connector and the break body.
[0019] The inner wall of the fixed sleeve is threaded to the outer wall of the air inlet connector, the inner wall of the fixed sleeve is threaded to the outer wall of the connecting body, the inner wall of the pull-out body is threaded to the outer wall of the air outlet connector, and a seventh sealing ring is provided between the pull-out body and the air outlet connector.
[0020] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:
[0021] This utility model connects the internal cavity and the movable cavity through a through hole, and by setting R1 2 +R2 2 =R3 2 This invention achieves a balanced state of the connector under high-pressure gas conditions, solves the problem of automatic disconnection of the breakaway valve after high-pressure gas is introduced, ensures the safe use of the breakaway valve, and improves the applicability of the breakaway valve. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the appearance of the present utility model;
[0024] Figure 2 for Figure 1 Sectional view at point BB;
[0025] Figure 3 for Figure 1 Sectional view at point AA;
[0026] Icons: 1-Inlet connector, 100-First sealing ring, 2-Outlet connector, 20-Seventh sealing ring, 3-Valve core, 31-Valve core support, 32-One-way valve spring, 33-Guide cylinder, 34-Guide rod, 35-Conical hole, 36-Fifth sealing ring, 4-Fixed body, 41-Modible through hole, 42-Claw, 421-Limit cover, 422-Second inclined surface, 51-Fixed sleeve, 510-Tension spring, 5 11-Inner convex ring, 512-Moving cavity, 513-Through hole, 514-Second sealing ring, 515-Retaining ring, 516-Fourth sealing ring, 52-Outer sleeve seat, 520-Ring retainer, 521-First inclined surface, 522-Bolt, 6-Connecting body, 61-Sixth sealing ring, 62-Outer convex ring, 63-Third sealing ring, 7-Pull-off body, 71-Slot, 8-First retaining ring, 9-Second retaining ring, 10-Third retaining ring Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0030] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Example 1
[0033] Please refer to Figures 1 to 3 This embodiment provides a bidirectional flow breakaway valve suitable for hydrogenation operations, including an inlet connector 1, an outlet connector 2, a pair of valve cores 3, a fixed body 4, and a fixed sleeve 51.
[0034] The outer wall of the air intake connector 1 is slidably sleeved with a connecting body 6. The inner wall of the connecting body 6 is clearance-fitted with the outer wall of the air intake connector 1. The connecting body 6 can slide relative to the air intake connector 1 along the axial direction. In order to improve the sealing between the connecting body 6 and the air intake connector 1, a first sealing ring 100 is arranged between the outer wall of the air intake connector 1 and the connecting body 6.
[0035] The vent connector 2 is fixedly connected to a pull-off body 7. In this embodiment, the inner wall of the pull-off body 7 is threadedly connected to the outer wall of the vent connector 2 so that the pull-off body 7 can be detachably configured on the vent connector 2. A seventh sealing ring 20 is provided between the pull-off body 7 and the vent connector 2 to achieve a sealed connection between the pull-off body 7 and the vent connector 2. A groove 71 is provided on the outer wall of the pull-off body 7 near the end of the connector 6.
[0036] The pair of valve cores 3 are respectively disposed in the inner cavity of the connecting body 6 and the pull-off body 7. The pair of valve cores 3 are arranged in a mirror image, and the ends of the pair of valve cores 3 are abutted to each other.
[0037] The fixing body 4 is fixedly disposed on the outer wall of the connecting body 6 at the end away from the air inlet connector 1. In this embodiment, preferably, the inner wall of the fixing body 4 is threaded to the outer wall of the connecting body 6 so that the fixing body 4 can be detachably disposed on the connecting body 6. The fixing body 4 is provided with a movable through hole 41 along its radial direction. A claw 42 is slidably disposed in the movable through hole 41. The radial length of the claw 42 is greater than the length of the movable through hole 41. The claw 42 matches the slot 71. Preferably, there are multiple movable through holes 41 and multiple claws 42. In this embodiment, there are four movable through holes 41 and four claws 42 to improve the stability of the claws 42 when they are locked.
[0038] The fixing sleeve 51 is fixedly disposed on the outer wall of the air intake connector 1. In this preferred embodiment, the inner wall of the fixing sleeve 51 is threaded to the outer wall of the air intake connector 1, so that the fixing sleeve 51 can be detachably disposed on the outer wall of the air intake connector 1. The end of the fixing sleeve 51 away from the air intake connector 1 is provided with an inner protruding ring 511, which slides in contact with the outer wall of the connecting body 6. The outer wall of the connecting body 6 near the air intake connector 1 is provided with an outer protruding ring 62, which slides in contact with the inner wall of the fixing sleeve 51. A movable cavity 5 is formed between the inner wall of the fixing sleeve 51, the outer wall of the connecting body 6, the inner protruding ring 511, and the outer protruding ring 62. 12. A tensile spring 510 is axially arranged inside the movable cavity 512. One end of the tensile spring 510 is connected to the outer convex ring 62, and the other end of the tensile spring 510 is connected to the inner convex ring 511. The fixed sleeve 51 is provided with an outer sleeve seat 52 at the end away from the connecting body 6. The inner wall of the outer sleeve seat 52 is in contact with the outer end face of the claw 42, and the claw 42 is pressed against the groove 71 by the outer sleeve seat 52 so that the ends of the connecting body 6 and the tensile body 7 are tightly pressed together. In order to improve the sealing between the connecting body 6 and the tensile body 7, a sixth sealing ring 61 is arranged between the connecting body 6 and the tensile body 7.
[0039] The outer wall of the connector 6 is provided with several through holes 513 communicating with the movable cavity 512. In this embodiment, four through holes 513 are provided, which are evenly distributed in the connector 6. The through holes 513 connect the inner cavity of the connector 6 and the movable cavity 512. When high-pressure gas is introduced into the air inlet connector 1, the high-pressure gas enters the movable cavity 512 through the through holes 513. In order to seal the movable cavity 512 and prevent gas leakage, a second sealing ring 514 is provided between the inner convex ring 511 and the outer wall of the connector 6. Specifically, the... The inner convex ring 511 has a second mounting groove on its outer wall, and the second sealing ring 514 is disposed in the second mounting groove; a third sealing ring 63 is disposed between the outer convex ring 62 and the inner wall of the fixing sleeve 51. Specifically, the outer wall of the outer convex ring 62 has a third mounting groove, and the third sealing ring 63 is disposed in the third mounting groove. Let the inner wall radius of the connection between the connecting body 6 and the air inlet connector 1 be R1, the outer wall radius of the connecting body 6 in sliding contact with the inner convex ring 511 be R2, and the outer wall radius of the outer convex ring 62 be R3, then R1 2 +R2 2 =R3 2 .
[0040] With the above configuration, when high-pressure gas is introduced into the air inlet connector 1, the high-pressure gas enters the movable cavity 512 through the through hole 513. The high-pressure gas generates an axial thrust F1 between the connector 6 and the air inlet connector 1. Within the movable cavity 512, the high-pressure gas generates an axial thrust F2 between the connector 6 and the inner convex ring 511, and an axial thrust F3 between the outer convex ring 62 and the fixed sleeve 51. Due to R1...2 +R2 2 =R3 2 Furthermore, the gas pressures they experience are the same, thus F1+F2=F3, achieving force balance for the connector 6. The connector 6, which is supplied with high-pressure gas, will not automatically detach under high pressure.
[0041] When the air inlet connector 1 or the air outlet connector 2 is accidentally subjected to external force, the air inlet connector 1 slides outward relative to the connecting body 6 under the action of external force, and the air inlet connector 1 and the connecting body 6 separate from each other. At the same time, the air inlet connector 1 drives the fixed sleeve 51 and the outer sleeve 52 to move outward. The fixed sleeve 51 compresses the breaking spring 510, and the inner wall of the outer sleeve 52 slides relative to the claw 42. At this time, the outer sleeve 52 still restricts the claw 42, and the connecting body 6 and the breaking body 7 remain tightly pressed together. When the external force further increases, the fixed sleeve 51 and the outer sleeve 52 move outward further, and the breaking spring 510... When the compression reaches its extreme value, the outer sleeve 52 slides away from the pawl 42 without restricting the pawl 42. The pawl 42 can slide radially along the movable through hole 41. Under the further action of external force, when the fixed sleeve 51 moves further outward, the connecting body 6 is driven to move outward by the breaking force spring 510. That is, the connecting body 6 and the fixed body 4 begin to separate and disconnect the breaking body 7. Under the axial movement of the fixed body 4, the pawl 42 is forced out of the slot 71, thereby the breaking body 7 is separated from the connecting body 6, and the air inlet connector 1 and the air outlet connector 2 are disconnected. When disconnected, the valve core 3 is used to seal the ports of the breaking body 7 and the connecting body 6 respectively.
[0042] In this embodiment, to further improve the stability of the connector 6 during sliding, a retaining ring 515 is provided to fill the gap between the outer convex ring 62 and the fixed sleeve 51. The retaining ring 515 fills the gap between the outer convex ring 62 and the fixed sleeve 51, and is fixedly connected to the fixed sleeve 51. The outer convex ring 62 and the retaining ring 515 are in sliding contact. To prevent gas leakage from the retaining ring 515, a fourth sealing ring 516 is provided between the retaining ring 515 and the fixed sleeve 51. In some other embodiments, the retaining ring 515 may be integrally formed with the fixed sleeve 51.
[0043] In this embodiment, the outer sleeve 52 is slidably disposed on the outer wall of the fixed sleeve 51, and a locking member is disposed between the outer sleeve 52 and the fixed sleeve 51 to lock the outer sleeve 52.
[0044] When reconnecting the disconnected air inlet connector 1 and air outlet connector 2, the locking mechanism is used to release the lock on the outer sleeve 52. The outer sleeve 52 is then manually slid so that the inner wall of the outer sleeve 52 does not restrict the claw 42. Then, the connecting body 6 is aligned with the port of the pull-off body 7, that is, the pull-off body 7 is inserted into the connecting body 6 along the inner wall of the fixing body 4. When the pull-off body 7 is inserted, the claw 42 is subjected to force and slides radially outward along the movable through hole 41. The slot 71 moves to correspond with the claw 42. Then, the outer sleeve 52 is slid towards the pull-off body 7 so that the inner wall of the sliding outer sleeve 52 contacts the claw 42 and presses the claw 42 against the slot 71, thereby tightly connecting the connecting body 6 and the pull-off body 7. The locking mechanism is then used to lock the outer sleeve 52 to prevent it from sliding, thus enabling reuse.
[0045] Please refer to Figure 2 The outer sleeve 52 is provided with a ring stop 520 at the end away from the fixed sleeve 51, and the outer end face of the claw 42 is provided with a limit cover 421. The diameter of the limit cover 421 is larger than the diameter of the movable through hole 41. In some other embodiments, the limit cover 421 can be replaced by a limit block or other structure. The ring stop 520 and the limit cover 421 are used to prevent the claw 42 from falling out of the movable through hole 41 after disconnection.
[0046] Please refer to Figure 2 The inner wall of the outer sleeve 52 is provided with a first inclined surface 521, and the outer end face of the claw 42 is provided with a second inclined surface 422 that matches the first inclined surface 521. The first inclined surface 521 and the second inclined surface 422 are in sliding contact. Through the first inclined surface 521 and the second inclined surface 422, when the sliding outer sleeve 52 restricts the claw 42, under the cooperation of the first inclined surface 521 and the second inclined surface 422, the claw 42 is increasingly pressed against the slot 71, thereby firmly locking the pull-off body 7 and the connecting body 6.
[0047] The locking element includes a screw hole disposed on the outer wall of the connecting body 6, a fixing hole disposed on the outer sleeve seat 52, and a bolt 522. The bolt 522 passes through the fixing hole and the screw hole to lock the outer sleeve seat 52. In this embodiment, the number of screw holes and fixing holes is set to several. The outer sleeve seat 52 is locked or unlocked by tightening and loosening the bolt 522. In other embodiments, the locking element may be a pin, a latch, or other structure to lock the outer sleeve seat 52 to the connecting body 6.
[0048] Please refer to Figure 2Both the connecting body 6 and the pull-off body 7 are equipped with valve core supports 31 in their inner cavities. The pair of valve cores 3 are correspondingly arranged on the valve core supports 31. A one-way valve spring 32 is provided axially between the valve core 3 and the valve core support 31. The valve core 3 is conical. The one-way valve spring 32 is connected to the large end face of the valve core 3. In this embodiment, the valve core support 31 is equipped with a guide cylinder 33. A guide rod 34 is slidably arranged in the guide cylinder 33. The guide rod 34 is fixedly connected to the center of the large end face of the valve core 3. The inner walls of the connecting body 6 and the pull-off body 7 are respectively provided with conical holes 35 that match the valve core 3. The small end face of the valve core 3 is equipped with a top-connecting column. The top-connecting columns of the pair of valve cores 3 abut against each other. Using a one-way valve spring 32 and a conical valve core 3, when the pull-off body 7 is disconnected from the connecting body 6, the top connecting column is disengaged and disconnected. Thus, under the action of the one-way valve spring 32, the valve core 3 is driven to press against the conical hole 35, thereby achieving the closure of the port after disconnection.
[0049] In this embodiment, the valve core 3 is provided with an annular groove, and a fifth sealing ring 36 is provided in the annular groove to improve the sealing performance of the valve core 3 when it is closed.
[0050] Please refer to Figure 1 and Figure 2 The outer wall of the pull-off body 7 is provided with a first protective ring 8, the outer wall of the outer sleeve 52 is provided with a second protective ring 9, and the outer wall of the fixing sleeve 51 is provided with a third protective ring 10. The first protective ring 8, the second protective ring 9, and the third protective ring 10 are all made of rubber material. The first protective ring 8, the second protective ring 9, and the third protective ring 10 have a protective function for the pull-off valve in this embodiment, preventing the pull-off valve from being damaged by friction with the ground.
[0051] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A bi-directional flow guillotine valve suitable for use in a hydrogenation operation, characterized in that, include: An air intake connector, the outer wall of which is slidably fitted with a connecting body; An air outlet connector is fixedly connected to a pull-off body, and the outer wall of the pull-off body is provided with a groove. A pair of valve cores, which are respectively disposed in the connecting body and the inner cavity of the breakaway body, and the ends of the pair of valve cores abut against each other; A fixing body, fixedly disposed on the outer wall of the connecting body, has a movable through hole arranged radially therein, and a locking claw is slidably disposed within the movable through hole, the locking claw matching a locking groove; and... A fixed sleeve is fixedly mounted on the outer wall of the air intake connector. The end of the fixed sleeve away from the air intake connector has an inner convex ring that slides in contact with the outer wall of the connecting body. The outer wall of the connecting body near the air intake connector has an outer convex ring that slides in contact with the inner wall of the fixed sleeve. A movable cavity is formed between the inner wall of the fixed sleeve, the outer wall of the connecting body, the inner convex ring, and the outer convex ring. A tensile spring is arranged axially in the movable cavity. The end of the fixed sleeve away from the connecting body has an outer sleeve seat. The inner wall of the outer sleeve seat contacts the outer end face of the claw, and the claw is pressed against the slot through the outer sleeve seat so that the ends of the connecting body and the tensile body are tightly pressed together. The connecting body has several through holes on its outer wall that connect to the movable cavity. A first sealing ring is provided at the junction of the connecting body and the air inlet connector. A second sealing ring is provided between the inner convex ring and the outer wall of the connecting body. A third sealing ring is provided between the outer convex ring and the inner wall of the fixing sleeve. Let the radius of the inner wall at the junction of the connecting body and the air inlet connector be R1, the radius of the outer wall in sliding contact with the inner convex ring be R2, and the radius of the outer wall of the outer convex ring be R3. Then R12 + R22 = R32.
2. A bi-directional flow guillotine valve suitable for use in a hydrogenation operation according to claim 1, wherein, A retaining ring is provided to fill the gap between the outer convex ring and the fixed sleeve. The retaining ring is fixedly connected to the fixed sleeve, and the outer convex ring and the retaining ring are in sliding contact. A fourth sealing ring is provided between the retaining ring and the fixed sleeve.
3. A bi-directional flow guillotine valve suitable for use in a hydrogenation operation according to claim 1, wherein, The outer sleeve is slidably disposed on the outer wall of the fixed sleeve, and a locking element is disposed between the outer sleeve and the fixed sleeve to lock the outer sleeve.
4. A bi-directional flow guillotine valve suitable for use in a hydrogenation operation according to claim 1, wherein, The inner wall of the outer sleeve is provided with a first inclined surface, and the outer end face of the claw is provided with a second inclined surface that matches the first inclined surface, and the first inclined surface and the second inclined surface slide in contact.
5. A bi-directional flow guillotine valve suitable for use in hydrogenation operations according to claim 1, wherein, The outer sleeve is provided with a ring stop at the end away from the fixed sleeve, and the outer end face of the claw is provided with a limit cover, the diameter of which is larger than the diameter of the movable through hole.
6. A bi-directional flow guillotine valve suitable for use in a hydrogenation operation according to claim 3, wherein, The locking element includes a screw hole disposed on the outer wall of the connecting body, a fixing hole disposed on the outer sleeve seat, and a bolt that passes through the fixing hole and the screw hole to lock the outer sleeve seat.
7. A bi-directional flow guillotine valve suitable for use in a hydrogenation operation according to any one of claims 1 to 6, characterised in that, Both the connecting body and the inner cavity of the breakaway body are equipped with valve core supports. The pair of valve cores are correspondingly arranged on the valve core supports. A one-way valve spring is provided axially between the valve core and the valve core support. The valve core is conical and has an annular groove on its outer wall. A fifth sealing ring is arranged in the annular groove. The one-way valve spring is connected to the large end face of the valve core. The inner walls of the connecting body and the breakaway body are respectively provided with conical holes that match the valve cores. The small end face of the valve core is equipped with a top-connecting column. The top-connecting columns of the pair of valve cores abut against each other.
8. A bi-directional flow guillotine valve suitable for use in a hydrogenation operation according to claim 1, wherein, The outer wall of the pull-out sleeve is provided with a first protective ring, the outer wall of the outer sleeve is provided with a second protective ring, and the outer wall of the fixing sleeve is provided with a third protective ring.
9. A bi-directional flow guillotine valve suitable for use in a hydrogenation operation according to claim 1, wherein, A sixth sealing ring is arranged between the connecting body and the pull-off body.
10. A bi-directional flow guillotine valve suitable for use in a hydrogenation operation according to claim 1, wherein, The inner wall of the fixed sleeve is threadedly connected to the outer wall of the air inlet connector, the inner wall of the fixed body is threadedly connected to the outer wall of the connecting body, the inner wall of the pull-off body is threadedly connected to the outer wall of the air outlet connector, and a seventh sealing ring is arranged between the pull-off body and the air outlet connector.