CN213746105U - Cylinder valve for gas cylinder and gas cylinder - Google Patents
Cylinder valve for gas cylinder and gas cylinder Download PDFInfo
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- CN213746105U CN213746105U CN202022788350.2U CN202022788350U CN213746105U CN 213746105 U CN213746105 U CN 213746105U CN 202022788350 U CN202022788350 U CN 202022788350U CN 213746105 U CN213746105 U CN 213746105U
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Abstract
The utility model discloses a cylinder valve and gas cylinder for gas cylinder, wherein the cylinder valve that is used for the gas cylinder includes: a cylinder valve body and a temperature-sensing pressure relief valve. The cylinder valve body is internally provided with an installation space; the cooperation of temperature sensing pressure relief valve is installed in the installation space, temperature sensing pressure relief valve includes: a quick temperature sensing element. The whole volume of this cylinder valve is littleer, is more convenient for arrange to temperature sensing pressure relief valve in the cylinder valve can carry out quick response to the change of temperature, in order to guarantee that the gas in the gas cylinder can in time release to the external world, thereby makes the security of cylinder valve and gas cylinder higher.
Description
Technical Field
The utility model relates to a general machinery technical field particularly, relates to a cylinder valve and gas cylinder for gas cylinder.
Background
Among the prior art, the temperature-sensing pressure relief valve on the cylinder valve of high-pressure gas cylinder is installed outside the cylinder valve body, consequently, the whole volume that leads to the cylinder valve is great, the structure is more complicated, and the temperature-sensing element of traditional temperature-sensing pressure relief valve adopts fusible alloy mostly, the transform of rising temperature is slow, make temperature-sensing pressure relief valve sensitive inadequately to temperature variation's reaction, it needs longer response time to release, it is untimely to release when leading to the fever, the whole security of unable effectual assurance gas cylinder, there is the improvement space.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a cylinder valve for gas cylinder, this cylinder valve's whole volume is littleer, is more convenient for arrange to the temperature sensing pressure relief valve in the cylinder valve can carry out quick response to the change of temperature, in order to guarantee that the gas in the gas cylinder can in time release the external world, thereby makes the security of cylinder valve and gas cylinder higher.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a cylinder valve for a gas cylinder, comprising: a cylinder valve body having an installation space therein; temperature-sensing pressure relief valve, temperature-sensing pressure relief valve cooperation is installed in the installation space, temperature-sensing pressure relief valve includes: a quick temperature sensing element.
Further, the rapid temperature-sensing element includes: a glass temperature sensing element.
Furthermore, a buffer structure is arranged on the outer side of the glass temperature sensing piece.
Further, the temperature-sensitive pressure relief valve further comprises: the temperature sensing glass piece is arranged between the sealing valve and the mounting bracket.
Further, the buffer structure includes: the first buffer piece is arranged between the sealing valve and the glass temperature sensing piece, and the second buffer piece is arranged between the mounting bracket and the glass temperature sensing piece.
Furthermore, the sealing valve is provided with a first mounting groove, the first end of the glass temperature sensing element is mounted in the first mounting groove in a matching manner, the mounting support is provided with a second mounting groove, and the second end of the glass temperature sensing element is mounted in the second mounting groove in a matching manner.
Further, the first buffer member is arranged between the first mounting groove and the first end, and the second buffer member is arranged in the second mounting groove and is abutted against the second end.
Furthermore, a slag discharge hole is formed in the peripheral wall of the mounting support and communicated with the second mounting groove.
Furthermore, the cylinder valve body is provided with a discharge channel, the diameter of a discharge port at the outer end of the discharge channel is D, and D is more than or equal to 4.5mm and less than or equal to 6.5 mm.
Compared with the prior art, the cylinder valve for the gas cylinder has the following advantages:
a cylinder valve for gas cylinder, this cylinder valve's whole volume is littleer, is more convenient for arrange to temperature sensing pressure relief valve in the cylinder valve can carry out quick response to the change of temperature, in order to guarantee that the gas in the gas cylinder can in time release the external world, thereby makes the security of cylinder valve and gas cylinder higher.
Another object of the utility model is to provide a gas cylinder, including foretell a cylinder valve for the gas cylinder, the whole volume of this gas cylinder is littleer, is more convenient for place, and meets the thermal relief response faster, and the security is higher.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic structural view of a cylinder valve according to an embodiment of the present invention;
FIG. 2 is an exploded view of a cylinder valve according to an embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of a cylinder valve according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a glass temperature-sensing element according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of a sealing shutter according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of a mounting bracket according to an embodiment of the present invention.
Description of reference numerals:
100-cylinder valve, 1-cylinder valve body, 11-installation space, 12-discharge channel, 2-temperature-sensing pressure discharge valve, 21-glass temperature sensing element, 211-first end, 212-second end, 22-buffer structure, 221-first buffer element, 222-second buffer element, 23-sealing valve, 231-first installation groove, 24-installation support, 241-second installation groove, 242-slag discharge hole, 3-sealing ring and 121-outer end discharge hole.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
A cylinder valve 100 for a gas cylinder according to an embodiment of the present invention is described below with reference to fig. 1 to 6.
According to the utility model discloses a cylinder valve 100 for gas cylinder can include: a cylinder valve body 1 and a temperature-sensing pressure relief valve 2.
As shown in fig. 1 and fig. 2, the temperature-sensitive pressure relief valve 2 is a pressure relief device driven by temperature change, and is disposed on the cylinder valve body 1 to be used for plugging or opening the relief passage 12, and it can quickly release high-pressure gas, such as hydrogen, in the gas cylinder when the gas cylinder or the cylinder valve 100 encounters fire or the temperature is greatly increased, on the premise of ensuring the normal use of the cylinder valve 100, so as to avoid the occurrence of the phenomenon of gas cylinder combustion or explosion, thereby ensuring the overall safety of the gas cylinder.
Because the temperature-sensing pressure relief valve on the cylinder valve of the traditional high-pressure gas cylinder is arranged outside the cylinder valve body, the whole volume of the cylinder valve is larger, and the structure is more complex.
Therefore, the embodiment of the present invention integrates the temperature-sensing pressure relief valve 2 in the interior of the cylinder valve body 1, so that the overall volume of the cylinder valve 100 is smaller and the structure is simpler. Namely, the cylinder valve body 1 is provided with a mounting space 11 (mounting hole), and at least part of the temperature-sensitive pressure relief valve 2 is arranged in the mounting space 11 in a matching manner, that is, the temperature-sensitive pressure relief valve 2 can be completely arranged in the cylinder valve body 1, and also can be partially arranged in the cylinder valve body 1, so that the whole volume of the cylinder valve 100 is reduced, the arrangement of the cylinder valve 100 is more convenient, the structure of the cylinder valve 100 is simplified, and the production and manufacturing costs are reduced.
The temperature sensing elements of the traditional temperature sensing pressure relief valve mostly adopt fusible alloy, the temperature rise transformation is slow, the temperature sensing pressure relief valve is not sensitive enough to the reaction of the temperature change, the relief needs longer response time, the relief is not timely when the gas is burnt, and the whole safety of the gas cylinder cannot be effectively guaranteed.
Therefore, the embodiment of the present invention provides a temperature-sensing pressure relief valve 2 including: a quick temperature sensing element. Namely, the temperature sensing element of the temperature sensing pressure relief valve 2 is a quick temperature sensing element, so that the cylinder valve 100 or the gas cylinder can quickly respond when the gas cylinder is burnt, and the gas in the gas cylinder is quickly released out of the cylinder.
That is to say, when taking place the fire, the quick temperature-sensing element of temperature-sensing pressure relief valve 2 can carry out quick response to the change of temperature for temperature-sensing pressure relief valve 2 can release the gas in the gas cylinder outside the gas cylinder at the very first time fast, in order to reach the purpose of protection gas cylinder.
According to the utility model discloses a cylinder valve 100 for gas cylinder, this cylinder valve 100's whole volume is littleer, is more convenient for arrange to temperature sensing pressure relief valve 2 in the cylinder valve 100 can carry out quick response to the change of temperature, in order to guarantee that the gas in the gas cylinder can in time release the external world, thereby makes the security of cylinder valve 100 and gas cylinder higher.
With reference to the embodiments shown in fig. 2 and 3, the fast temperature sensing element includes: a glass temperature sensor 21. The glass temperature sensing element 21 senses the temperature change more rapidly to improve the response speed of the temperature-sensing pressure relief valve 2. Specifically, when the gas cylinder or the cylinder valve 100 is burned, the temperature of the glass temperature-sensing element 21 rapidly increases after absorbing heat, and automatically breaks after reaching a certain temperature, for example, 110 ℃, so that the temperature-sensing pressure relief valve 2 opens the relief passage 12 to allow gas to rapidly flow out. That is, the glass temperature sensing element 21 can respond to temperature change quickly, and the glass temperature sensing element 21 breaks quickly when the temperature reaches the operating temperature, so that the response speed of the temperature-sensitive pressure relief valve 2 for releasing gas is faster.
As shown in fig. 2 and 3, the glass temperature-sensing element 21 is a glass element, which has a short fatigue life, and during the normal inflation and deflation process of the gas cylinder, the glass temperature-sensing element 21 is directly acted by the gas pressure, and the glass temperature-sensing element 21 is easily damaged during the multiple inflation and deflation processes. Therefore, the embodiment of the utility model provides a be provided with buffer structure 22 in the outside of glass temperature-sensing piece 21 to play effectual cushioning effect to glass temperature-sensing piece 21, consequently can effectively reduce the gas pressure when filling the gassing in the gas cylinder normal use and to glass temperature-sensing piece 21's impact, thereby increase the life of temperature-sensing pressure relief valve 2, and then increased the life of whole cylinder valve 100.
In connection with the embodiment shown in fig. 2 and 3, the temperature-sensitive pressure relief valve 2 further comprises: the temperature-sensing pressure relief valve comprises a sealing valve 23 and a mounting support 24, wherein the glass temperature-sensing element 21 is stably arranged between the sealing valve 23 and the mounting support 24, the mounting support 24 is suitable for being in threaded fit with the cylinder valve body 1 to stably arrange the temperature-sensing pressure relief valve 2 in the cylinder valve body 1 integrally, the glass temperature-sensing element 21 is used for supporting the sealing valve 23, so that the sealing valve 23 can block the relief passage 12, when the glass temperature-sensing element 21 is broken, the glass temperature-sensing element 21 cannot continuously support the sealing valve 23, and under the action of air pressure, the sealing valve 23 moves towards the mounting support 24 to open the relief passage 12, so that the gas in the gas cylinder can be released outwards.
Referring to fig. 2 and 3, the buffer structure 22 includes: a first buffer material 221 and a second buffer material 222, wherein the first buffer material 221 is disposed between the sealing shutter 23 and the glass temperature sensing element 21 for buffering the impact of the sealing shutter 23 on the glass temperature sensing element 21, and the second buffer material 222 is disposed between the mounting bracket 24 and the glass temperature sensing element 21 for buffering the impact of the mounting bracket 24 on the glass temperature sensing element 21. Therefore, the first buffer 221 and the second buffer 222 can reduce the impact of the gas pressure on the glass temperature-sensitive element 21 at a plurality of positions of the glass temperature-sensitive element 21, thereby effectively prolonging the service life of the temperature-sensitive pressure release valve 2 and the service life of the cylinder valve 100.
The sealing valve 23 and the mounting bracket 24 are stainless steel members, which have hydrogen embrittlement resistance, and are better used in a hydrogen environment, so that the stability of the sealing valve 23 and the mounting bracket 24 is ensured, and the first buffer member 221 and the second buffer member 222 can be buffer pad structures, which can be made of polyetheretherketone, and have higher hardness and better buffering effect.
As shown in fig. 2-4, the glass temperature sensing element 21 includes a thick end and a thin end, wherein the thin end is the first end 211 of the glass temperature sensing element 21, the thick end is the second end 212 of the glass temperature sensing element 21, the sealing shutter 23 has a first mounting groove 231, the first end 211 of the glass temperature sensing element 21 is fittingly mounted in the first mounting groove 231, the mounting bracket 24 has a second mounting groove 241, and the second end 212 of the glass temperature sensing element 21 is fittingly mounted in the second mounting groove 241. Therefore, the glass temperature sensing element 21 can be arranged more stably, and the overall structure of the temperature-sensitive pressure relief valve 2 can be made more compact and more stable.
The first cushion member 221 is disposed between the outer end of the first mounting groove 231 and the first end 211, the first end 211 is adapted to pass through the first cushion member 221 to fit in the first mounting groove 231, and the second cushion member 222 is disposed in the second mounting groove 241 and is abutted to the second end 212 and the bottom wall of the second mounting groove 241, that is, sandwiched between the second end 212 and the bottom wall of the second mounting groove 241, so as to achieve a better buffering effect, thereby effectively protecting the glass temperature sensing element 21.
Referring to fig. 3 and 6, a slag discharge hole 242 is formed in the peripheral wall of the mounting bracket 24, the slag discharge hole 242 is communicated with the second mounting groove 241, and the slag discharge hole 242 is adapted to discharge glass fragments generated when the glass temperature sensing element 21 is broken, so as to reduce resistance when gas is discharged. That is, when the gas is burnt, the glass temperature sensing element 21 absorbs heat and is broken, at this time, the glass fragments can be discharged into the discharge channel 12 at the downstream of the slag discharge hole 242 through the slag discharge hole 242 from the second mounting groove 241, and finally discharged to the outside of the cylinder valve 100 from the outer end discharge port 121 under the action of the gas pressure, so that the fragments of the glass temperature sensing element 21 are prevented from obstructing the movement of the sealing valve 23 and obstructing the discharge of the gas, and the gas in the gas cylinder can be normally discharged to the outside of the gas cylinder through the discharge channel 12.
Moreover, the slag discharge hole 242 formed on the peripheral wall of the mounting bracket 24 is beneficial for the glass temperature sensing element 21 to absorb heat, so that the response speed of the glass temperature sensing element 21 to the temperature change is faster.
As shown in fig. 1-3, the cylinder valve body 1 has a discharge passage 12, the temperature-sensitive pressure discharge valve 2 is adapted to block or open the discharge passage 12, i.e. normally block the discharge passage 12, and open the discharge passage 12 when the gas cylinder or the cylinder valve 100 is heated, so that the gas in the gas cylinder can pass through the discharge passage 12 and finally be discharged out of the gas cylinder from the outer end discharge port 121, so as to avoid explosion, and the diameter of the outer end discharge port 121 of the discharge passage 12 is D, D is greater than or equal to 4.5mm and less than or equal to 6.5 mm. I.e. the diameter of the outer end discharge opening 121 is controlled between 4.5mm and 6.5 mm. Preferably, D is 5.5 mm. I.e. the diameter of the outer end discharge opening 121 is 5.5 mm. From this, can make the diameter of outer end discharge port 121 bigger to make the discharge flow of gas bigger, can effectively shorten the release time of gas in the gas cylinder, thereby reach the purpose of quick release gas.
As shown in fig. 2, 3 and 5, the sealing valve 23 has a circumferential groove, the sealing ring 3 is installed in the circumferential groove, and when the gas cylinder works normally, the sealing valve 23 with the sealing ring 3 is blocked in the bleed hole of the cylinder valve body 1 to prevent gas from leaking from the inside of the gas cylinder to the outside of the gas cylinder through the bleed hole. When the gas cylinder is burnt, the glass temperature sensing element 21 is broken, and fragments of the sealing valve 23, the sealing ring 3, the first buffer 221 and the glass temperature sensing element 21 are pushed into the mounting bracket 24 by the gas pressure in the gas cylinder, so that the discharge channel 12 is opened.
A gas cylinder according to another aspect of the present invention includes the cylinder valve 100 for a gas cylinder described in the above embodiments. Other configurations for the cylinders are known in the art and well known to those skilled in the art, and therefore will not be described in detail herein.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A cylinder valve (100) for a gas cylinder, comprising:
the cylinder valve comprises a cylinder valve body (1), wherein an installation space (11) is arranged in the cylinder valve body (1);
temperature-sensing pressure relief valve (2), temperature-sensing pressure relief valve (2) cooperation is installed in installation space (11), temperature-sensing pressure relief valve (2) include: a quick temperature sensing element.
2. A cylinder valve (100) for a gas cylinder according to claim 1, characterized in that the rapid temperature-sensing element comprises: a glass temperature sensing member (21).
3. A cylinder valve (100) for a gas cylinder according to claim 2, characterized in that a buffering structure (22) is provided on the outside of the glass temperature-sensing piece (21).
4. A cylinder valve (100) for a gas cylinder according to claim 3, characterized in that the temperature-sensitive pressure relief valve (2) further comprises: the temperature-sensing glass comprises a sealing valve (23) and a mounting bracket (24), wherein the temperature-sensing glass (21) is arranged between the sealing valve (23) and the mounting bracket (24).
5. A cylinder valve (100) for a gas cylinder according to claim 4, characterized in that the cushioning structure (22) comprises: the temperature-sensing device comprises a first buffer piece (221) and a second buffer piece (222), wherein the first buffer piece (221) is arranged between the sealing valve (23) and the glass temperature-sensing piece (21), and the second buffer piece (222) is arranged between the mounting bracket (24) and the glass temperature-sensing piece (21).
6. A cylinder valve (100) for a gas cylinder according to claim 5, wherein the sealing shutter (23) has a first mounting groove (231), the first end (211) of the glass temperature-sensing member (21) is fittingly mounted in the first mounting groove (231), the mounting bracket (24) has a second mounting groove (241), and the second end (212) of the glass temperature-sensing member (21) is fittingly mounted in the second mounting groove (241).
7. A cylinder valve (100) for a gas cylinder according to claim 6, characterized in that the first cushion (221) is disposed between the first mounting groove (231) and the first end (211), the second cushion (222) being disposed within the second mounting groove (241) and abutting against the second end (212).
8. A cylinder valve (100) for a gas cylinder according to claim 6, characterized in that a slag discharge hole (242) is opened on a peripheral wall of the mounting bracket (24), the slag discharge hole (242) being communicated with the second mounting groove (241).
9. A cylinder valve (100) for a gas cylinder according to claim 1, characterized in that the cylinder valve body (1) has a discharge passage (12), the discharge opening (121) of the outer end of the discharge passage (12) has a diameter D, 4.5mm ≦ D ≦ 6.5 mm.
10. A gas cylinder, characterized by comprising a cylinder valve (100) for a gas cylinder according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022788350.2U CN213746105U (en) | 2020-11-26 | 2020-11-26 | Cylinder valve for gas cylinder and gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022788350.2U CN213746105U (en) | 2020-11-26 | 2020-11-26 | Cylinder valve for gas cylinder and gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213746105U true CN213746105U (en) | 2021-07-20 |
Family
ID=76831638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022788350.2U Active CN213746105U (en) | 2020-11-26 | 2020-11-26 | Cylinder valve for gas cylinder and gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213746105U (en) |
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2020
- 2020-11-26 CN CN202022788350.2U patent/CN213746105U/en active Active
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