CN212131412U - Fire-retardant valve for gas cylinder - Google Patents
Fire-retardant valve for gas cylinder Download PDFInfo
- Publication number
- CN212131412U CN212131412U CN202020761408.1U CN202020761408U CN212131412U CN 212131412 U CN212131412 U CN 212131412U CN 202020761408 U CN202020761408 U CN 202020761408U CN 212131412 U CN212131412 U CN 212131412U
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- fire
- block
- gas
- retardant
- air inlet
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- Expired - Fee Related
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Abstract
The utility model discloses a fire-retardant valve for a gas cylinder, which comprises a shell cylinder body, wherein the shell cylinder body is provided with a gas inlet and a gas outlet; the inner core assembly is arranged in the shell cylinder and is provided with a central air passage, and an air inlet fire retardant block and an air outlet fire retardant block which are positioned at two ends; the one-way valve is communicated with the central air passage and is close to the air inlet fire retardant block; the stainless steel fire-retardant net is arranged between the air inlet fire-retardant block and the air outlet fire-retardant block; and flanges mounted at two ends of the shell cylinder. The utility model discloses an inner core subassembly in the shell barrel ventilates, the check valve switching to the back-fire relief piece is realized with the back-fire relief net to the cooperation back-fire relief, avoids the potential safety hazard of the easy tempering of pipeline in the past.
Description
Technical Field
The utility model belongs to the technical field of flame blocker area, specifically speaking relates to a back-fire relief valve for gas cylinder.
Background
At present, the industrial gas combustion system is mainly provided with a one-way check device or a pressure relief device for preventing backfire, the one-way check device enables gas to flow in a one-way mode, and when gas backflow occurs, the device is closed under high pressure so as to rapidly cut off a gas source and prevent the gas from flowing back to the gas source. The pressure relief device is opened to release fuel gas and reduce pressure when the pressure of the pipeline is higher than the preset pressure, so that the purpose of preventing backfire is achieved. The existing device can only instantly block the flow of fuel gas, does not really cut off the gas source, and does not have a functional element for extinguishing flame, thereby having great defects.
SUMMERY OF THE UTILITY MODEL
In view of this, the technical problem that this application will solve provides a back-fire relief valve for gas cylinder, ventilates through the inner core subassembly in the shell barrel, and the check valve switching to the back-fire relief piece is realized with back-fire relief net to the cooperation, avoids the potential safety hazard of the easy tempering of pipeline in the past.
In order to solve the technical problem, the utility model discloses a fire-retardant valve for a gas cylinder, which comprises a shell cylinder, wherein the shell cylinder is provided with a gas inlet and a gas outlet; the inner core assembly is arranged in the shell cylinder and is provided with a central air passage, and an air inlet fire retardant block and an air outlet fire retardant block which are positioned at two ends; the one-way valve is communicated with the central air passage and is close to the air inlet fire retardant block; the stainless steel fire-retardant net is arranged between the air inlet fire-retardant block and the air outlet fire-retardant block; and flanges mounted at two ends of the shell cylinder.
According to the utility model relates to an embodiment, wherein above-mentioned back-fire relief piece of admitting air all is provided with a plurality of tunnels along air inlet to gas outlet direction with the back-fire relief piece of giving vent to anger.
According to an embodiment of the present invention, the air intake fire retardant block is provided with a first ring of protrusions axially protruding from the air intake; the check valve comprises a second annular protrusion corresponding to the first annular protrusion, and a spring is sleeved between the first annular protrusion and the second annular protrusion; the third ring that faces the air inlet is protruding, the protruding front end screw thread of third ring cooperation shell barrel, and the rear end is equipped with exposes and switches on to the protruding blow vent of first ring.
According to the present invention, the third ring protrusion ring is provided with a buffering graphite ring.
According to the utility model relates to an embodiment, wherein above-mentioned back-fire relief piece of admitting air and being equipped with between the back-fire relief piece of giving vent to anger and strengthening the back-fire relief piece, strengthen the back-fire relief piece and connect a plurality of stainless steel back-fire screens.
Compared with the prior art, the application can obtain the following technical effects:
the inner core assembly in the shell cylinder is ventilated, the one-way valve is opened and closed, the fire retardant block and the fire retardant net are matched to realize fire retardant, and the potential safety hazard that the pipeline is easy to backfire in the past is avoided.
Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic view of a flame arrester for a gas cylinder according to an embodiment of the present application.
Reference numerals
The shell barrel 10, the air inlet 11, the gas outlet 12, the central air passage 21, the fire retardant piece 22 of admitting air, the fire retardant piece 23 of giving vent to anger, pore 24, check valve 30, stainless steel fire retardant net 40, flange 50, first ring is protruding 61, the second is protruding 62, the third is protruding 63, vent 64, graphite circle 70 strengthens fire retardant piece 80.
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
Referring to fig. 1, fig. 1 is a schematic view of a flame arrester for a gas cylinder according to an embodiment of the present application. As shown in the figures, a flame arrester for a gas cylinder comprises a housing cylinder 10, the housing cylinder 10 having a gas inlet 11 and a gas outlet 12; the inner core assembly is arranged in the shell cylinder 10 and is provided with a central air passage 21, and an air inlet fire retardant block 22 and an air outlet fire retardant block 23 which are positioned at two ends; the check valve 30 is communicated with the central air passage 21 and is close to the air inlet fire retardant block 22; the stainless steel fire-retardant net 40 is arranged between the air inlet fire-retardant block 22 and the air outlet fire-retardant block 23; and flanges 50 mounted to both ends of the housing cylinder 10.
The utility model discloses an embodiment, shell barrel 10 both ends set up flange 50 and connect gas cylinder and pipeline, have air inlet 11 and gas outlet 12, are equipped with check valve 30 in 11 one end of air inlet, rear end next-door neighbour inner core subassembly, and inner core subassembly both ends set up admits air back-fire relief piece 22 and the back-fire relief piece 23 of giving vent to anger, and central authorities expose central air passage 21, concentrate and ventilate. In addition, a stainless steel fire-retardant net 40 is also arranged between the air inlet fire-retardant block 22 and the air outlet fire-retardant block 23. Preferably, the air inlet flame barrier block 22 and the air outlet flame barrier block 23 are provided with a plurality of openings 24 along the direction from the air inlet 11 to the air outlet 12, and when flames enter the openings 24, a plurality of fine flame flows are formed. Because the heat transfer area of the duct 24 is large, the temperature of the flame decreases after the flame exchanges heat through the side wall of the duct 24, and the flame is extinguished to a certain extent. The fire retardant effect is enhanced by matching with the stainless steel fire retardant net 40.
The air inlet fire retardant block 22 is provided with a circle of first annular protrusions 61 which axially protrude out of the air inlet 11; the check valve 30 comprises a second annular protrusion 62 corresponding to the first annular protrusion 61, and a spring is sleeved between the first annular protrusion 61 and the second annular protrusion 2; the front end of the third annular protrusion 63 faces the air inlet 11 and is in threaded fit with the shell cylinder 10, and the rear end of the third annular protrusion 63 is provided with an air vent 64 which is exposed and communicated with the first annular protrusion 61. In this embodiment, the gas bypasses the outer ring of the check valve 30 through the vent 64 of the third annular protrusion 63, enters the central air passage 21 through the gap between the first annular protrusion 61 and the second annular protrusion 62 to realize gas supply, and the extrusion of the spring is completed through the knob check valve 30, so that the butt joint of the first annular protrusion 61 and the second annular protrusion 62 is closed, and the pipeline is closed, which is simple and practical.
Preferably, the third annular flange 63 is annularly provided with a buffering graphite ring 70, and the inner part is sealed, so that the safety is enhanced.
In addition, it strengthens back-fire relief piece 80 to be equipped with between back-fire relief piece 22 and the back-fire relief piece 23 of giving vent to anger of admitting air, strengthens back-fire relief piece 80 and connects a plurality of stainless steel fire prevention nets 40, makes things convenient for the installation between a plurality of stainless steel fire prevention nets 40, improves stability, has also strengthened back-fire relief effect simultaneously.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (5)
1. A fire relief valve for a gas cylinder, comprising:
a housing barrel having an air inlet and an air outlet;
the inner core assembly is arranged in the shell cylinder and is provided with a central air passage, and an air inlet fire retardant block and an air outlet fire retardant block which are positioned at two ends;
the one-way valve is communicated with the central air passage and is close to the air inlet fire retardant block;
the stainless steel fire-retardant net is arranged between the air inlet fire-retardant block and the air outlet fire-retardant block; and
and the flanges are arranged at two ends of the shell cylinder.
2. A fire relief valve for a gas cylinder as claimed in claim 1, wherein the gas inlet fire relief block and the gas outlet fire relief block are provided with a plurality of openings in the direction from the gas inlet to the gas outlet.
3. A fire relief valve for a gas cylinder as defined in claim 1 wherein said gas inlet fire relief block is provided with a ring of first annular protrusions projecting axially from said gas inlet; the check valve comprises a second annular protrusion corresponding to the first annular protrusion, and a spring is sleeved between the first annular protrusion and the second annular protrusion; the third ring of the air inlet is convex, the convex front end of the third ring is in threaded fit with the shell barrel, and the rear end of the third ring is provided with an exposed vent which is communicated with the convex first ring.
4. A fire relief valve for a gas cylinder as claimed in claim 3, wherein the third annular protrusion is provided with a cushioned graphite ring.
5. The fire retardant valve for the gas cylinder as claimed in claim 1, wherein a reinforced fire retardant block is arranged between the gas inlet fire retardant block and the gas outlet fire retardant block, and the reinforced fire retardant block is connected with a plurality of stainless steel fire retardant nets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020761408.1U CN212131412U (en) | 2020-05-11 | 2020-05-11 | Fire-retardant valve for gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020761408.1U CN212131412U (en) | 2020-05-11 | 2020-05-11 | Fire-retardant valve for gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212131412U true CN212131412U (en) | 2020-12-11 |
Family
ID=73694331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020761408.1U Expired - Fee Related CN212131412U (en) | 2020-05-11 | 2020-05-11 | Fire-retardant valve for gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212131412U (en) |
-
2020
- 2020-05-11 CN CN202020761408.1U patent/CN212131412U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201211 Termination date: 20210511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |