CN214662318U - Temperature control relief device for high-pressure gas cylinder valve - Google Patents
Temperature control relief device for high-pressure gas cylinder valve Download PDFInfo
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- CN214662318U CN214662318U CN202121020567.7U CN202121020567U CN214662318U CN 214662318 U CN214662318 U CN 214662318U CN 202121020567 U CN202121020567 U CN 202121020567U CN 214662318 U CN214662318 U CN 214662318U
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- temperature
- valve core
- movable valve
- sliding movable
- locking nut
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- 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
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Abstract
The utility model discloses a control by temperature change bleeder for high-pressure gas cylinder valve, including control by temperature change lock nut to and from bottom to top insert the temperature sensing glass pipe in the control by temperature change lock nut inner chamber in proper order and slide and move the case, still the cover is equipped with the spring in the lower pole portion that slides and move the case, open at control by temperature change lock nut's top has with the communicating axial heat conduction hole of inner chamber and radial heat conduction hole, slide and move the lower tip of case, slide and be provided with the sealing washer between case and the control by temperature change lock nut respectively. The mode of combining an axial heat conduction hole and a radial heat conduction hole is adopted; compared with the unidirectional pore canal, the heat flow arriving from different directions of the heat source can be captured more sensitively, the corresponding time for bursting and opening the temperature sensing glass tube is further reduced, and the safety channel can be started in time when an unexpected disaster occurs; the position of the sealing ring is reasonably arranged, and the safety and reliability of the sealing performance under the normal working condition are ensured; overall structure is simple, low in manufacturing cost, and simple to operate is quick.
Description
Technical Field
The utility model belongs to the technical field of the integrated cylinder valve of high-pressure hydrogen, especially, relate to a control by temperature change discharge apparatus.
Background
The high-pressure hydrogen integrated cylinder valve is arranged on a hydrogen storage cylinder of a fuel cell automobile and used for controlling the on-off of hydrogen in the hydrogen storage cylinder. Temperature control relief device is used for installing on the bottleneck valve, is an emergent processing apparatus of initiative, and under normal operating conditions, temperature control relief device is in the closed condition, meets proruption temperature shock when the bottle valve part, and the bottle valve part is in when ambient temperature reaches 110 +/-5 ℃, and inside opening of temperature control relief device, gaseous medium just can discharge in the atmosphere through temperature control relief device passageway in the gas bomb, prevents that accidental calamity from further upgrading.
When an accident disaster occurs, the temperature control release device can be started as a safety channel in time, and is very important for controlling the development degree of the disaster; meanwhile, the explosion limit of hydrogen is 4.0-75.6% (volume fraction), and when the hydrogen is mixed with air, the volume of the hydrogen is in the above range, and the hydrogen is exploded when meeting fire; if the sealing reliability of the temperature control relief device is low, potential hidden danger exists for safe use.
The existing products still have a great space for improvement in the aspects of emergency response time and safe and reliable sealing.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a temperature control release device for a high-pressure gas bottle valve, which can start a safety channel in time when an unexpected disaster occurs; under the normal working condition, the sealing performance of the temperature control relief device is safe and reliable.
Therefore, the utility model discloses the technical scheme who adopts does: the temperature control relief device for the high-pressure gas cylinder valve comprises a temperature control locking nut, a temperature sensing glass tube and a sliding movable valve core, wherein the temperature sensing glass tube and the sliding movable valve core are sequentially inserted into an inner cavity of the temperature control locking nut from bottom to top, a spring is sleeved on a lower rod part of the sliding movable valve core, an axial heat conduction hole and a radial heat conduction hole which are communicated with the inner cavity are formed in the top of the temperature control locking nut, and sealing rings are respectively arranged between the lower end part of the sliding movable valve core, the sliding movable valve core and the temperature control locking nut.
Preferably, the spring is a butterfly-shaped elastic sheet, and a step surface for mounting the upper end of the butterfly-shaped elastic sheet is arranged on the lower rod part of the sliding movable valve core. Because the product is influenced by the manufacturing precision, on the premise of ensuring the sealing reliability, the radial direction is often subjected to interference sealing, so that the axial movement resistance of the sliding movable valve core is increased; the butterfly-shaped elastic sheet applies elasticity to the sliding movable valve core when the temperature-sensitive glass tube is exploded, and the sliding movable valve core is favorable for moving quickly.
Preferably, the temperature control lock nut and the sliding movable valve core are respectively provided with a groove for inserting and mounting the end of the temperature sensing glass tube.
Preferably, two sealing rings are arranged at the lower end part of the sliding movable valve core, and at least one sealing ring is sealed by a conical surface; a sealing ring is arranged between the sliding movable valve core and the temperature control locking nut; further improving the sealing performance.
Preferably, the temperature control lock nut, the temperature sensing glass tube, the sliding movable valve core, the spring and the sealing ring are coaxially arranged, and the axial heat conducting hole is arranged by staggering the axis of the temperature control lock nut.
Preferably, when the lower end face of the sliding movable valve core is pressed, the spring can retract into the inner cavity of the temperature control locking nut, and the structure is more compact.
The utility model has the advantages that: the mode of combining an axial heat conduction hole and a radial heat conduction hole is adopted; compared with the unidirectional pore canal, the heat flow arriving from different directions of the heat source can be captured more sensitively, the corresponding time for bursting and opening the temperature sensing glass tube is further reduced, and the safety channel can be started in time when an unexpected disaster occurs; the position of the sealing ring is reasonably arranged, and the safety and reliability of the sealing performance under the normal working condition are ensured; overall structure is simple, low in manufacturing cost, and simple to operate is quick.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a cross-sectional view of the temperature controlled vent assembly mounted on the valve body and in a shut-off condition.
FIG. 3 is a cross-sectional view of the temperature controlled vent apparatus mounted on the valve body and in a conducting state.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
referring to fig. 1-3, a temperature control release device for a high-pressure gas cylinder valve mainly comprises a temperature control lock nut 1, a temperature sensing glass tube 2, a sliding movable valve core 3, a spring 4 and a sealing ring 5.
The temperature sensing glass tube 2 and the sliding movable valve core 3 are sequentially inserted into the inner cavity of the temperature control locking nut 1 from bottom to top, and the outer wall of the temperature control locking nut 1 is provided with threads for being installed on the high-pressure gas cylinder valve 6. For the convenience of installation, grooves for inserting and installing the end of the temperature sensing glass tube 2 are respectively arranged on the temperature control locking nut 1 and the sliding movable valve core 3.
The lower rod part of the sliding movable valve core 3 is also sleeved with a spring 4, the spring 4 preferably adopts a butterfly-shaped elastic sheet, a step surface for installing the upper end of the butterfly-shaped elastic sheet is arranged on the lower rod part of the sliding movable valve core 3, and the lower end of the butterfly-shaped elastic sheet is used for being tightly installed on the step surface of the high-pressure gas cylinder valve 6 in a propping manner.
The top of the temperature control locking nut 1 is provided with an axial heat conduction hole 11 and a radial heat conduction hole 12 which are communicated with the inner cavity.
Sealing rings 5 are respectively arranged at the lower end part of the sliding movable valve core 3 and between the sliding movable valve core 3 and the temperature control locking nut 1. Preferably, two sealing rings 5 are arranged at the lower end part of the sliding movable valve core 3, and at least one sealing ring 5 is sealed by a conical surface; a sealing ring 5 is arranged between the sliding movable valve core 3 and the temperature control locking nut 1. In addition, the temperature control locking nut 1, the temperature sensing glass tube 2, the sliding movable valve core 3, the spring 4 and the sealing ring 5 are coaxially arranged, and the axial heat conducting hole 11 is arranged in a staggered mode with respect to the axis of the temperature control locking nut 1.
When the lower end face of the sliding valve core 3 is pressed, the spring 4 can preferably retract into the inner cavity of the temperature-controlled lock nut 1.
The high-pressure gas cylinder valve 6 is provided with a first gas channel 61 and a second gas channel 62, and the axes of the two channels are perpendicular to each other. The axes of the temperature control locking nut 1, the temperature sensing glass tube 2 and the sliding movable valve core 3 are coincided with the axis of the gas second channel 62. The temperature control locking nut 1, the temperature sensing glass tube 2, the sliding movable valve core 3 and the spring 4 are assembled in sequence, the pretightening force of the temperature control locking nut 1 is conducted in sequence, and two sealing rings 5 of the sliding movable valve core 3 are abutted against the contact surface of the high-pressure gas cylinder valve 6 to form a sealed and closed structure.
Under the normal working condition, because two sealing rings on the sliding movable valve core are abutted against the contact surface of the high-pressure gas cylinder valve, a closed sealing structure is formed; the channel in the high-pressure gas cylinder is in a cut-off state, and the gas medium cannot be discharged through the first gas channel and the centralized pipeline interface.
When an accident disaster occurs around the gas cylinder, the high-pressure gas cylinder valve part encounters sudden temperature shock, and high-temperature heat flow rapidly permeates into the periphery of the temperature sensing glass tube through the axial heat conduction hole and the radial heat conduction hole at the end part of the temperature control locking nut; when the environmental temperature rises to 110 +/-5 ℃, the temperature-sensitive glass tube reaches the temperature point set by bursting and bursts; due to the fact that the temperature sensing glass tube is broken through explosion, the single side of the sliding movable valve core loses supporting force, the sliding movable valve core pushes the sliding movable valve core to move towards the direction of the temperature control locking nut under the combined action of gas pressure and spring elasticity, the original sealing structure is broken, the gas first channel and the gas second channel are communicated, high-pressure gas media in the gas cylinder are discharged at a high speed through the centralized pipeline interface through the gas second channel and the gas first channel, and further upgrading of accidental disasters is prevented.
Claims (6)
1. The utility model provides a control by temperature change bleeder mechanism for high-pressure gas cylinder valve which characterized in that: the temperature-sensing valve comprises a temperature-sensing locking nut (1), a temperature-sensing glass tube (2) and a sliding movable valve core (3), wherein the temperature-sensing glass tube and the sliding movable valve core are sequentially inserted into an inner cavity of the temperature-sensing locking nut (1) from bottom to top, a spring (4) is sleeved on a lower rod part of the sliding movable valve core (3), the top of the temperature-sensing locking nut (1) is provided with an axial heat conduction hole (11) and a radial heat conduction hole (12) which are communicated with the inner cavity, and a sealing ring (5) is respectively arranged between the lower end part of the sliding movable valve core (3), the sliding movable valve core (3) and the temperature-sensing locking nut (1).
2. The temperature controlled release device for a high pressure gas cylinder valve of claim 1, further comprising: the spring (4) adopts a butterfly-shaped elastic sheet, and a step surface for installing the upper end of the butterfly-shaped elastic sheet is arranged on the lower rod part of the sliding movable valve core (3).
3. The temperature controlled release device for a high pressure gas cylinder valve of claim 1, further comprising: grooves for inserting and installing the end of the temperature sensing glass tube (2) are respectively arranged on the temperature control locking nut (1) and the sliding movable valve core (3).
4. The temperature controlled release device for a high pressure gas cylinder valve of claim 1, further comprising: the lower end part of the sliding movable valve core (3) is provided with two sealing rings (5), and at least one sealing ring (5) is sealed by a conical surface; and a sealing ring (5) is arranged between the sliding movable valve core (3) and the temperature control locking nut (1).
5. The temperature controlled release device for a high pressure gas cylinder valve of claim 1, further comprising: the temperature control locking nut (1), the temperature sensing glass tube (2), the sliding movable valve core (3), the spring (4) and the sealing ring (5) are coaxially arranged, and the axial heat conducting hole (11) is arranged in a staggered mode with the axis of the temperature control locking nut (1).
6. The temperature controlled release device for a high pressure gas cylinder valve of claim 1, further comprising: when the lower end face of the sliding movable valve core (3) is pressed, the spring (4) can retract into the inner cavity of the temperature control locking nut (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121020567.7U CN214662318U (en) | 2021-05-13 | 2021-05-13 | Temperature control relief device for high-pressure gas cylinder valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121020567.7U CN214662318U (en) | 2021-05-13 | 2021-05-13 | Temperature control relief device for high-pressure gas cylinder valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214662318U true CN214662318U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121020567.7U Active CN214662318U (en) | 2021-05-13 | 2021-05-13 | Temperature control relief device for high-pressure gas cylinder valve |
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| CN (1) | CN214662318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811439A (en) * | 2022-05-09 | 2022-07-29 | 深圳市安保医疗科技股份有限公司 | Hydrogen pipeline device and hydrogen production machine |
-
2021
- 2021-05-13 CN CN202121020567.7U patent/CN214662318U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811439A (en) * | 2022-05-09 | 2022-07-29 | 深圳市安保医疗科技股份有限公司 | Hydrogen pipeline device and hydrogen production machine |
| CN114811439B (en) * | 2022-05-09 | 2024-05-03 | 深圳市安保医疗科技股份有限公司 | Hydrogen pipeline device and hydrogen production machine |
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