CN105903139B - Fire stopping device - Google Patents
Fire stopping device Download PDFInfo
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- CN105903139B CN105903139B CN201610461143.1A CN201610461143A CN105903139B CN 105903139 B CN105903139 B CN 105903139B CN 201610461143 A CN201610461143 A CN 201610461143A CN 105903139 B CN105903139 B CN 105903139B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
- A62C4/02—Flame traps allowing passage of gas but not of flame or explosion wave in gas-pipes
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Abstract
The invention relates to the technical field of pipeline safety equipment, in particular to a fire arrester, which comprises a fire arrester main body, wherein the fire arrester main body is provided with a head end and a tail end which correspond to each other, and the head end of the fire arrester main body is provided with a fire arresting cavity; a cavity opening of the fire stopping cavity is fixedly connected with a fire stopping cap, and a fire stopping block is arranged in the fire stopping cavity; the fire stopping and blocking piece comprises a fire stopping pipe arranged in the fire stopping cavity and a fire stopping column inserted in the fire stopping pipe; and one end of the fire stopping column is inserted with a fire stopping needle, and the fire stopping needle is used for abutting against the air inlet of the fire stopping cap. The invention has the characteristics of good fire-stopping effect, strong safety and reusability.
Description
Technical Field
The invention relates to the technical field of pipeline safety equipment, in particular to a fire arrester.
Background
At present, various combustible gases, such as coal gas, natural gas, liquefied petroleum gas, oxyhydrogen gas and the like, are widely used in industrial production and people's lives. Due to the flammability of combustible gases, there are also high demands on their safety in use. The hydrogen-oxygen mixed gas is a new energy source, and when the hydrogen-oxygen mixed gas is used as fuel gas, a safety fire stopping device must be additionally arranged on a mixed gas pipeline. The existing dry fire stopping device consists of a metal pipe and a section of fire stopping cylinder arranged in the metal pipe, and only one section of fire stopping cylinder has poor fire stopping effect, can not completely stop fire, has poor safety and is difficult to reuse.
Disclosure of Invention
The invention aims to provide a fire stopper, which aims to solve the technical problems of poor fire stopping effect and poor safety of the fire stopper in the prior art.
The invention provides a fire arrester, which comprises a fire arrester main body, wherein the fire arrester main body is provided with a head end and a tail end which correspond to each other, and the head end of the fire arrester main body is provided with a fire arresting cavity; a cavity opening of the fire stopping cavity is fixedly connected with a fire stopping cap, and a fire stopping block is arranged in the fire stopping cavity; the fire stopping and blocking piece comprises a fire stopping pipe arranged in the fire stopping cavity and a fire stopping column inserted in the fire stopping pipe; and one end of the fire stopping column is inserted with a fire stopping needle, and the fire stopping needle is used for abutting against the air inlet of the fire stopping cap.
Furthermore, one end of the fire stopping column is provided with an insertion hole, the circumferential direction of the fire stopping column is provided with an air hole, and the air hole is communicated with the insertion hole; the fire-stopping needle comprises a guide part and an umbrella cap part; the guide part is sleeved with a spring and is inserted into the jack; the umbrella cap part is provided with a conical end which is used for abutting against the air inlet of the fire-stopping cap.
Furthermore, the fire stopping and blocking piece further comprises a fire stopping pipe seat, the fire stopping pipe seat is arranged at the cavity bottom of the fire stopping cavity, and the fire stopping pipe is limited on the fire stopping pipe seat.
Further, still include the flame arrester pressure head, the flame arrester pressure head is fixed in the head end of flame arrester main part.
Further, the number of the fire-stopping cavities is multiple; the fire stopping device pressure head is provided with an air inlet connector, and the air inlet connector is communicated with an air inlet of the fire stopping cap; the fire stopping device main body is provided with a gas outlet joint, and the gas outlet joint is communicated with an outlet at the bottom of the fire stopping cavity.
Further, a sealing groove is formed in the umbrella cap part, and a sealing ring is installed in the sealing groove.
Furthermore, a sealing ring is arranged between the fire-stopping pipe seat and the cavity bottom of the fire-stopping cavity.
Further, a gasket is arranged between the fire stopping pipe and the fire stopping pipe seat.
Furthermore, the gasket is made of red copper.
Further, the fire-stopping pipe is a hollow pipe body formed by die-casting metal powder.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a fire arrestor, which comprises a fire arrestor main body, wherein the fire arrestor main body is provided with a head end and a tail end which correspond to each other; the cavity opening of the fire stopping cavity is fixedly connected with a fire stopping cap, and a fire stopping block is arranged in the fire stopping cavity; the fire stopping and blocking piece comprises a fire stopping pipe arranged in the fire stopping cavity and a fire stopping column inserted in the fire stopping pipe; one end of the fire stopping column is inserted with a fire stopping needle which is used for abutting against an air inlet of the fire stopping cap. Gas enters and rushes the fire stopping needle from the gas inlet of the fire stopping cap, then enters a gap between the fire stopping cavity and the fire stopping pipe, then enters the fire stopping pipe through the micropore channel on the fire stopping pipe, and finally flows out from the outlet at the bottom of the fire stopping cavity; in addition, the fire stopping needle ensures the unidirectional flow of gas, thereby realizing the dual guarantee of fire stopping, having good fire stopping effect, strong safety and repeated use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a fire arrestor according to an embodiment of the present invention;
FIG. 2 is a schematic view of a firearm suppressor according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a firearm suppressor body according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a fire stop cap according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a fire stopping needle according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a flame-stopping pillar according to an embodiment of the invention;
FIG. 7 is a schematic structural diagram of a middle fire-stop tube seat according to an embodiment of the present invention.
Reference numerals:
101-a fire arrestor body; 102-a fire-stopping cavity; 103-a fire-stopping cap;
104-fire stopping tube; 105-a fire stop column; 106-fire stopping needle;
107-a guide; 108-umbrella cap portion; 109-pores;
110-a spring; 111-seal groove; 112-a sealing ring;
113-flame-proof tube seat; 114-firestop ram; 115-air inlet connection;
116-a gas outlet fitting; 117 — first diversion channel; 118-second diversion channel.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1 to 7, a first embodiment of the invention provides a fire stopper, which is used in an oxyhydrogen mixed gas pipeline, and includes a fire stopper main body 101, the fire stopper main body 101 has a corresponding head end and a tail end, and the head end of the fire stopper main body 101 is provided with a fire stopping cavity 102; a cavity opening of the fire stopping cavity 102 is fixedly connected with a fire stopping cap 103, and a fire stopping block is arranged in the fire stopping cavity 102; the fire stopping block comprises a fire stopping pipe 104 arranged in the fire stopping cavity 102 and a fire stopping column 105 inserted in the fire stopping pipe 104; one end of the fire stopping column 105 is inserted with a fire stopping needle 106, and the fire stopping needle 106 is used for abutting against the air inlet of the fire stopping cap 103 and limiting the flow direction of the air flow to be unidirectional.
Specifically, the fire arrestor main body 101 is cylindrical, the cavity extending direction of the fire arrestor cavity 102 is parallel to the axis of the fire arrestor main body 101, and the cavity of the fire arrestor cavity 102 is cylindrical; the fire stopping cap 103 is in threaded connection with the cavity opening of the fire stopping cavity 102, and a sealing ring is arranged between the fire stopping cap and the cavity opening of the fire stopping cavity; the fire stop piece is limited in the fire stop cavity 102 by the fire stop cap 103; the fire-stopping pipe is arranged with a gap between the fire-stopping pipe and the fire-stopping cavity 102.
When the fire extinguisher provided by the embodiment of the invention is used, gas enters from the gas inlet of the fire stopping cap 103 and flushes the fire stopping needle 106, then enters the gap between the fire stopping cavity 102 and the fire stopping pipe, then enters the fire stopping pipe through the micropore channel on the fire stopping pipe, and finally flows out from the outlet at the cavity bottom of the fire stopping cavity 102; in addition, the fire stopping needle 106 ensures the unidirectional flow of gas, thereby realizing the dual guarantee of fire stopping, having good fire stopping effect, strong safety and repeated use.
In the embodiment, one end of the fire stopping column 105 is provided with an insertion hole, the circumference of the fire stopping column 105 is provided with an air hole 109, and the air hole 109 is communicated with the insertion hole, so that after gas enters the fire stopping cavity 102 from an air inlet of the fire stopping cap 103, the gas enters a gap between the fire stopping pipe and the fire stopping cavity 102 through the insertion hole and the air hole in sequence; the fire-stopping needle 106 includes a guide portion 107 and an umbrella cap portion 108; the guide part 107 is sleeved with a spring 110, the guide part 107 is inserted into the insertion hole, and the spring 110 is in a compressed state; the umbrella cap portion 108 has a tapered end for abutment with the air inlet of the fire stop cap 103. By allowing the tapered end of the umbrella cap portion 108 to abut against the air inlet of the fire stop cap 103 by means of the spring 110, the air can be separated from the air inlet of the fire stop cap 103 only when the pressure of the air is large; since the fire stop pin 106 is located in the fire stop chamber 102 and the maximum diameter of the cross section of the tapered end is greater than the diameter of the gas inlet, the gas flows unidirectionally at the fire stop cap 103, i.e., the fire stop pin 106 acts as a one-way valve.
In this embodiment, the umbrella cap 108 has a sealing groove 111, and a sealing ring 112 is installed in the sealing groove 111, specifically, the sealing ring 112 is an O-shaped sealing ring; the sealing ring can ensure the air tightness between the umbrella cap part 108 and the fire-stopping cap 103.
In this embodiment, the fire-stopping component further comprises a fire-stopping pipe seat 113, the fire-stopping pipe seat 113 is arranged at the bottom of the fire-stopping cavity 102, and the fire-stopping pipe is limited on the fire-stopping pipe seat 113. The gap between the outer surface of the flame arrester tube and the flame arrester chamber 102 is ensured by the flame arrester base 113.
In this embodiment, a sealing ring is disposed between the fire-stopping pipe seat 113 and the cavity bottom of the fire-stopping cavity 102, specifically, the sealing ring is an O-ring, and it is ensured that gas can only enter the fire-stopping pipe from the gap between the fire-stopping pipe and the fire-stopping cavity 102 and flow from the interior of the fire-stopping pipe to the outlet at the cavity bottom of the fire-stopping cavity 102. A gasket is arranged between the fire-stopping pipe and the fire-stopping pipe seat 113, the gasket is made of red copper, and the air tightness between the end face of the fire-stopping pipe and the fire-stopping pipe seat 113 is ensured by the gasket. The fire-stopping pipe seat 113 is provided with a vent hole which is communicated with the outlet of the cavity bottom of the fire-stopping cavity 102.
The extinguisher in this embodiment also includes an extinguisher head 114, the extinguisher head 114 being secured to the head end of the extinguisher body 101. The arrestor ram 114 is fixedly connected to the arrestor body 101 by bolts.
In this embodiment, the fire extinguishing chamber 102 is plural in number; the fire stopping device pressure head 114 is provided with an air inlet connector 115, and the air inlet connector 115 is communicated with an air inlet of the fire stopping cap 103; the fire stopping device main body 101 is provided with an air outlet joint 116, and the air outlet joint 116 is communicated with an outlet at the bottom of the fire stopping cavity 102.
Specifically, a sealing ring is arranged between the fire arrestor pressure head 114 and the end face of the head end of the fire arrestor main body 101, and the sealing ring is a polytetrafluoroethylene sealing ring (high temperature resistance can reach 1600 ℃); the number of the fire-stopping cavities 102 is 4, and it should be noted that the number of the fire-stopping cavities 102 in this embodiment is not limited to 4, and may also be 2, 3, 5, 6, and the like. The fire stopping pressure head 114 is provided with a plurality of first diversion channels 117, and the number of the first diversion channels 117 is the same as that of the fire stopping cavities 102; the first diversion passage 117 communicates with the intake port connection 115; the gas enters the inlet port from the gas inlet connection 115 and flows from the diversion channel to the gas inlet of the flame stop cap 103. The air inlet connection 115 is for plumbing communication. The fire extinguisher main body 101 is provided with a plurality of second diversion channels 118, the number of the second diversion channels 118 is the same as that of the fire stopping cavities 102, and the second diversion channels 118 are communicated with the air outlet joint 116; after flowing out from the outlet at the bottom of the fire-stopping cavity 102, the gas passes through the second diversion channel 118, finally is merged and flows out from the gas outlet joint 116; the air outlet joint 116 is used for pipeline communication.
In this embodiment, the flame arrester tube is a hollow tube body formed by die-casting metal powder. Specifically, the fire stopping pipe is a hollow pipe body formed by stainless steel powder metallurgy die-casting, or the fire stopping pipe is a hollow pipe body formed by copper-based powder metallurgy die-casting; or the fire stopping pipe is a hollow pipe body formed by die casting aluminum oxide powder.
In this embodiment, the specific working principle of the fire stopping device is as follows:
gas enters from the gas inlet connector 115, and because the pressure of the gas is higher, the gas can push the conical end of the fire-stopping needle 106 to move so as to compress the spring 110, so that the gas enters the fire-stopping cavity 102 from the gas inlet of the fire-stopping cap 103, sequentially passes through the jacks and the air holes, enters the gap between the fire-stopping cavity 102 and the fire-stopping pipe, then enters the fire-stopping pipe through the micropore channel on the fire-stopping pipe, flows out from the outlet at the bottom of the fire-stopping cavity 102, and finally flows out from the gas outlet connector 116; when the flame meets tempering and deflagration, the flame enters the flame-stopping pipe from the outlet at the bottom of the flame-stopping cavity 102, the flame is decomposed by the flame-stopping pipe and is divided into a plurality of fine micron-sized flames in the micron-sized micropore channels on the flame-stopping pipe, so that the contact area between the flame and the flame-stopping pipe is increased, the thermal decomposition is enhanced, the temperature of the flame is instantly reduced to a non-combustible condition, and the flame is prevented from spreading.
The fire extinguishing principle of the fire stopping pipe is as follows: because the combustion and explosion do not directly react with each other, but are damaged by external excitation energy molecular bonds to generate activated molecules, the activated molecules are split into short-lived but very active free radicals, and the free radicals collide with other molecules to generate new products, and simultaneously, new free radicals are generated to continue to react with other molecules. Therefore, when the deflagrated combustible gas passes through the micropore channel of the fire-stopping tube, the collision probability of free radicals and the channel wall is increased, and the free radicals participating in the reaction are reduced. When the channel of the fire-stopping tube is narrow to a certain extent, the collision of free radicals with the channel wall is dominant, and because the number of free radicals is reduced sharply, the reaction can not be continued, so that the combustion reaction can not continue along the microporous channel of the fire-stopping tube.
Example two
The flame arrester in the embodiment is an improvement on the basis of the first embodiment, technical contents disclosed in the first embodiment are not described repeatedly, and the contents disclosed in the first embodiment also belong to the contents disclosed in the present embodiment.
In the embodiment, the fire arrestor pressure head, the fire arrestor main body, the fire arresting cap, the fire arresting tube seat, the fire arresting column and the fire arresting needle are made of 304 stainless steel uniformly. 304 stainless steel is a chromium-nickel stainless steel which is most widely used, and has good corrosion resistance, heat resistance, low-temperature strength and mechanical properties as a steel with wide application; good hot workability such as stamping and bending, and no heat treatment hardening phenomenon.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The fire arrester is characterized by comprising a fire arrester main body, wherein the fire arrester main body is provided with a head end and a tail end which correspond to each other, and the head end of the fire arrester main body is provided with a fire arresting cavity; a cavity opening of the fire stopping cavity is fixedly connected with a fire stopping cap, and a fire stopping block is arranged in the fire stopping cavity; the fire stopping and blocking piece comprises a fire stopping pipe arranged in the fire stopping cavity and a fire stopping column inserted in the fire stopping pipe; one end of the fire stopping column is provided with an insertion hole, the circumferential direction of the fire stopping column is provided with an air hole, and the air hole is communicated with the insertion hole; one end of the fire stopping column is inserted with a fire stopping needle which is used for abutting against an air inlet of the fire stopping cap;
the fire-stopping needle comprises a guide part and an umbrella cap part; the guide part is sleeved with a spring and is inserted into the jack; the umbrella cap part is provided with a conical end which is used for abutting against the air inlet of the fire stopping cap;
the fire stopping device also comprises a fire stopping device pressure head which is fixed at the head end of the fire stopping device main body;
the number of the fire-stopping cavities is multiple; the fire stopping device pressure head is provided with an air inlet connector, and the air inlet connector is communicated with an air inlet of the fire stopping cap; the fire stopping device main body is provided with an air outlet joint which is communicated with an outlet at the cavity bottom of the fire stopping cavity;
the fire stopping device pressure head is provided with a plurality of first diversion channels, and the number of the first diversion channels is the same as that of the fire stopping cavities; the first diversion channel is communicated with the air inlet joint; after entering from the gas inlet joint, the gas respectively flows to the gas inlets of the fire stopping caps from the first diversion channels; the air inlet joint is used for being communicated with a pipeline; the fire stopping device main body is provided with a plurality of second diversion channels, the number of the second diversion channels is the same as that of the fire stopping cavities, and the second diversion channels are communicated with the air outlet joint; after flowing out from an outlet at the bottom of the fire-stopping cavity, the gas passes through the second diversion channel, is finally merged and flows out from the gas outlet joint; the air outlet joint is used for being communicated with a pipeline;
gas enters from the gas inlet joint, and because the pressure of the gas is high, the gas can push the conical end of the fire-stopping needle to move so as to compress the spring, so that the gas enters the fire-stopping cavity from the gas inlet of the fire-stopping cap, sequentially passes through the jack and the gas hole, enters a gap between the fire-stopping cavity and the fire-stopping pipe, then enters the fire-stopping pipe through a micropore channel on the fire-stopping pipe, flows out from an outlet at the bottom of the fire-stopping cavity, and finally flows out from the gas outlet joint; when the flame meets tempering and deflagration, the flame enters the flame-stopping pipe from the outlet at the bottom of the flame-stopping cavity, the flame is decomposed by the flame-stopping pipe and is divided into a plurality of fine micron-sized flames in the micropore channel on the flame-stopping pipe, so that the temperature of the flame is instantly reduced to a non-combustible condition, and the flame is prevented from spreading.
2. The fire stop of claim 1, wherein said fire stop block further comprises a fire stop socket disposed at the bottom of said fire stop chamber, said fire stop tube being retained by said fire stop socket.
3. The fire stop of claim 2, wherein the umbrella cap portion defines a sealing groove, and a sealing ring is disposed in the sealing groove.
4. The fire stop of claim 2, wherein a sealing ring is disposed between said fire stop socket and the bottom of said fire stop chamber.
5. The fire stop of claim 2, wherein a gasket is disposed between the fire stop tube and the fire stop tube seat.
6. The fire stop device according to claim 5, wherein the gasket is made of red copper.
7. A fire stop according to any one of claims 1-6, wherein the fire stop tube is a hollow tubular body of metal powder die-cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461143.1A CN105903139B (en) | 2016-06-22 | 2016-06-22 | Fire stopping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610461143.1A CN105903139B (en) | 2016-06-22 | 2016-06-22 | Fire stopping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105903139A CN105903139A (en) | 2016-08-31 |
| CN105903139B true CN105903139B (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610461143.1A Active CN105903139B (en) | 2016-06-22 | 2016-06-22 | Fire stopping device |
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| CN (1) | CN105903139B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506295Y (en) * | 2001-12-05 | 2002-08-21 | 深圳市绿色能源科技开发有限公司 | Safety flame trap for oxygen mixing gas combustion |
| CN203379534U (en) * | 2013-08-16 | 2014-01-08 | 无太水氢科技（湖南）有限公司 | Multi-layer wet type backfire-proof device |
| KR20150031697A (en) * | 2013-09-16 | 2015-03-25 | 제이아이산업(주) | Expanding type pre-heating tip unit possible for exchangeable use with concentration type pre-heating tip |
| CN105240856A (en) * | 2015-10-18 | 2016-01-13 | 桐城市丽琼金属制品有限公司 | Dry tempering flashback arrestor |
| CN205759231U (en) * | 2016-06-22 | 2016-12-07 | 北京金泉普旺节能技术有限公司 | A kind of only firearm |
-
2016
- 2016-06-22 CN CN201610461143.1A patent/CN105903139B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506295Y (en) * | 2001-12-05 | 2002-08-21 | 深圳市绿色能源科技开发有限公司 | Safety flame trap for oxygen mixing gas combustion |
| CN203379534U (en) * | 2013-08-16 | 2014-01-08 | 无太水氢科技（湖南）有限公司 | Multi-layer wet type backfire-proof device |
| KR20150031697A (en) * | 2013-09-16 | 2015-03-25 | 제이아이산업(주) | Expanding type pre-heating tip unit possible for exchangeable use with concentration type pre-heating tip |
| CN105240856A (en) * | 2015-10-18 | 2016-01-13 | 桐城市丽琼金属制品有限公司 | Dry tempering flashback arrestor |
| CN205759231U (en) * | 2016-06-22 | 2016-12-07 | 北京金泉普旺节能技术有限公司 | A kind of only firearm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105903139A (en) | 2016-08-31 |
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