CN102777916A - Tempering preventing device - Google Patents
Tempering preventing device Download PDFInfo
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- CN102777916A CN102777916A CN2012103134206A CN201210313420A CN102777916A CN 102777916 A CN102777916 A CN 102777916A CN 2012103134206 A CN2012103134206 A CN 2012103134206A CN 201210313420 A CN201210313420 A CN 201210313420A CN 102777916 A CN102777916 A CN 102777916A
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- backfire controller
- outlet nozzle
- backfire
- fire
- taper
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Abstract
The invention discloses a tempering preventing device which comprises a tempering preventing device body, wherein two ends of the tempering preventing device body are respectively provided with a gas inlet nozzle and a gas outlet nozzle, wherein the tempering preventing device body is provided with an inflaming retarding cavity used for communicating the gas inlet nozzle with the gas outlet nozzle and internally provided with an inflaming retarding body, the part of the tempering preventing device body, which is arranged between the gas outlet nozzle and the inflaming retarding cavity, is provided with a tapered accommodating cavity, one end of the tempering preventing device body, which is larger in cross section, is close to the gas outlet nozzle, a tapered non-return body matched with the tapered accommodating cavity is arranged in the tapered accommodating cavity, and a channel for communicating the gas outlet nozzle with the inflaming retarding cavity is formed between the outer wall of the tapered non-return body and the inner wall of the tapered accommodating cavity under the airflow pushing of a gas source with a set pressure. According to the tempering preventing device provided by the invention, the tempering preventing effect is improved.
Description
Technical field
The present invention relates to anti-backfire equipment design field, relate in particular to a kind of anti-backfire effect backfire controller preferably.
Background technology
Tempering is a kind of malcombustion phenomenon that fuel gas occurs in the process of burning, is in particular in that combustion flame burns along the combustible gas pipeline towards the source of the gas direction.For example the acetylene burning torch can make acetylene and oxygen burn towards acetylene source of the gas direction along pipeline because of misoperation, and for example automobile is understood the Rack that very deafening bang occurs in the process of exercising again, and this is that the blast pipe tempering phenomenon causes.In a word, because combustion flame can cause burning towards the direction burning of source of the gas in limited space, carries out, so tempering often causes either large or small blast vibrations to take place, this causes equipment operate as normal stably in the process of tempering.
Tempering is the unwanted combustion phenomenon of fuel gas in the equipment course of work, therefore prevents necessitating of tempering phenomenon, and then is intended to prevent that the backfire controller that tempering phenomenon takes place from arising at the historic moment.Existing backfire controller is generally filled resistance fire material and is stoped combustion flame towards the spreading of source of the gas direction, thereby stops the generation of tempering, the steel wire that resistance fire material is commonly used etc.The groundwork principle of existing backfire controller is through cutting off the tempering combustion flame; Stop it to spread finally to reach and extinguish back fire flame and then reach anti-backfire purpose; But we can find out; Only merely from stoping the back fire flame approach axis to be started with, still source of the gas does not stop the supply of fuel gas to existing backfire controller when tempering phenomenon produces, and then makes that tempering phenomenon continues to recur after causing the source of the gas butt joint to go up back fire flame.Therefore, the anti-backfire poor effect of existing backfire controller has influenced the operate as normal of equipment.
Therefore, how improving the anti-backfire effect of existing backfire controller, is the technical problem that present those skilled in the art need to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of backfire controller, to improve the anti-backfire effect of existing backfire controller.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of backfire controller comprises that two ends are respectively arranged with the backfire controller body of suction nozzle and outlet nozzle, and said backfire controller body has the said suction nozzle of connection and outlet nozzle, and the fire-retardant chamber of built-in back-fire relief body; Position on the said backfire controller body between said outlet nozzle and said fire-retardant chamber is provided with the taper containing cavity; And the bigger end of its cross-sectional area is near said outlet nozzle; Be provided with the taper non-return body adaptive in the said taper containing cavity, under the air-flow of setting pressure promotes, form the passage that is communicated with said outlet nozzle and said fire-retardant chamber between the outer wall of said taper non-return body and the said taper containing cavity inwall with said taper containing cavity.
Preferably, in the above-mentioned backfire controller, comprise that also an end is positioned on the said outlet nozzle, the other end is connected on the said taper non-return body end relative with said outlet nozzle the thrust elastic component with the power that applies said taper containing cavity inwall.
Preferably, in the above-mentioned backfire controller, said thrust elastic component is the compression spring.
Preferably, in the above-mentioned backfire controller, be provided with reference column in the said outlet nozzle, said taper non-return body is provided with storage tank, and said compression spring housing is located on the said reference column and places said storage tank.
Preferably, in the above-mentioned backfire controller, also comprise being set in said backfire controller body exterior, and form the overcoat in liquid cools chamber with said backfire controller body outer wall, it is provided with cooling fluid access port and cooling fluid outlet.
Preferably, in the above-mentioned backfire controller, said cooling fluid access port and cooling fluid outlet are separately positioned on the both sides of the axis of said overcoat, and said cooling fluid access port is near said suction nozzle, and said cooling fluid outlet is near said outlet nozzle.
Preferably, in the above-mentioned backfire controller, be provided with fin or needle-like radiating part on the radiating surface of said backfire controller body outer wall and said overcoat.
Preferably, in the above-mentioned backfire controller, said overcoat is copper overcoat, and is coated with the chromium layer on the outer surface of said overcoat.
Preferably, in the above-mentioned backfire controller, said back-fire relief body is the foam chromium back-fire relief body with hole.
Preferably, in the above-mentioned backfire controller, said back-fire relief body is a fine-celled foam chromium back-fire relief body.
Backfire controller provided by the invention comprises that two ends are respectively arranged with the backfire controller body of suction nozzle and outlet nozzle, and said backfire controller body has the said suction nozzle of connection and outlet nozzle, and the fire-retardant chamber of built-in back-fire relief body; Position on the said backfire controller body between said outlet nozzle and said fire-retardant chamber is provided with the taper containing cavity; And the bigger end of its cross-sectional area is near said outlet nozzle; Be provided with the taper non-return body adaptive in the said taper containing cavity, under the source of the gas air-flow of setting pressure promotes, form the passage that is communicated with said outlet nozzle and said fire-retardant chamber between the outer wall of said taper non-return body and the said taper containing cavity inwall with said taper containing cavity.In the process of work; Burning mixture is opened at the air-flow effect inferior pyramidal non-return body of setting pressure and the passage between the taper containing cavity inwall after through the back-fire relief body in the fire-retardant chamber from suction nozzle; And finally enter into outlet nozzle; Said process has been realized the circulation of fuel gas, and the tempering high temperature gas flow flows into from outlet nozzle owing to be accompanied by the blast vibrations when tempering occurring, moves in the promotion inferior pyramidal non-return body of the high pressure draught direction towards pathway closure; Moment is blocked the fuel gas that flows out from fire-retardant chamber; Back-fire relief body in the fire-retardant chamber extinguishes the flame back-fire relief that enters into wherein simultaneously, has avoided recurring of tempering, has improved the anti-backfire effect of backfire controller.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of concrete structure sketch map of the backfire controller that Fig. 1 provides for the embodiment of the invention;
The another kind of concrete structure sketch map of the backfire controller that Fig. 2 provides for the embodiment of the invention.
Among last Fig. 1-2:
Suction nozzle 1, back-fire relief body 2, overcoat 3, cooling fluid 4, compression spring 5, taper non-return body 6, cooling fluid outlet 7, cooling fluid access port 8, outlet nozzle 9, backfire controller body 10.
The specific embodiment
The embodiment of the invention provides a kind of backfire controller, and existing backfire controller is improved, and has improved the anti-backfire effect of backfire controller.
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Please refer to accompanying drawing 1, a kind of concrete structure sketch map of the backfire controller that accompanying drawing 1 provides for the embodiment of the invention.
The backfire controller that the embodiment of the invention provides comprises backfire controller body 10, back-fire relief body 2 and taper non-return body 6, wherein:
Backfire controller body 10 is the main part of whole backfire controller; The two ends of backfire controller body 10 are respectively arranged with suction nozzle 1 and outlet nozzle 9; This backfire controller body 10 has the fire-retardant chamber that is communicated with suction nozzle 1 and outlet nozzle 9; Position between fire-retardant chamber and outlet nozzle 9 is provided with the taper containing cavity, and the bigger end of this taper containing cavity cross-sectional area is near outlet nozzle 9;
Back-fire relief body 2 is processed by resistance fire material, can be installed in the fire-retardant chamber after also can processing according to the preset shape in fire-retardant chamber through forming in the fire-retardant chamber that resistance fire material is pressed into backfire controller body 10;
Taper non-return body 6 is arranged in the taper containing cavity and is suitable with this taper containing cavity, in the process of work, between the source of the gas air-flow of setting pressure promotes the inwall of outer wall and taper containing cavity of inferior pyramidal non-return body 6, forms the passage that is communicated with outlet nozzle 9 and fire-retardant chamber.
Fuel gas enters into the fire-retardant chamber of backfire controller body 10 and passes and washes taper non-return body 6 back under the source of the gas air-flow effect of back-fire relief body 2 in setting pressure open and enter into outlet nozzle 9 through passage through suction nozzle 1 in the process of work, thereby has accomplished the supply of fuel gas.When tempering phenomenon takes place when; The high temperature gas flow of tempering burning takes the lead in getting at the impact inferior pyramidal non-return body 6 of high temperature gas flow from outlet nozzle 9 and moves (promptly moving towards the less end of taper containing cavity cross-sectional area) towards the direction of pathway closure; Thereby moment is blocked the fuel gas that flows out from fire-retardant chamber; Stop back fire flame further in fire-retardant chamber, to spread simultaneously; Can find out that through said process 6 moments of taper non-return body block further outwards flowing out through passage of fuel gas, by back fire flame play in fire-retardant chamber at outlet nozzle 9 places, the back fire flame that the tempering initial stage scurries in the fire-retardant chamber is extinguished under the effect of back-fire relief body 2 simultaneously; Only realize that through intercepting back fire flame anti-backfire backfire controller compares with respect to what prior art provided; The backfire controller that the embodiment of the invention provides can block the outflow of fuel gas under the effect of tempering high-temperature gas when tempering takes place, intercepted the inflow of back fire flame simultaneously, and the tempering that the back-fire relief body 2 in the fire-retardant chamber is scurried into the tempering initial stage is extinguished; Improve anti-backfire effect, realized the work that equipment is more stable.
Because it is rapider that tempering phenomenon takes place; If untimely processing tends to take place the accident of hazardous; The faster the better so this just requires the anti-backfire operation of backfire controller; Narrate taper non-return body 6 above and under the effect of high temperature gas flow, can wink add closing passage; In order to make the reaction of above-mentioned taper non-return body 6 rapider; This backfire controller can also comprise the thrust elastic component, and this thrust elastic component one end is positioned on the outlet nozzle 9, and the other end is connected on the relative end of taper non-return body 6 and outlet nozzle 9; This thrust elastic component applies the power that makes that taper non-return body 6 is pressed close to taper containing cavity inwall; The inwall of the outer wall of above-mentioned taper non-return body 6 and taper containing cavity fits when off working state, moves and makes and form the circulation that passage has finally been realized fuel gas between the inwall of its outer wall and taper containing cavity impacting inferior pyramidal non-return body 6 under the pressure of fuel gas during work, when the generation tempering phenomenon; The active force of combined propulsive force elastic component under the effect of high tempering air-flow make taper non-return body 6 more promptly move with seal its with the taper containing cavity between the passage that forms, so above-mentioned thrust elastic component the further anti-backfire effect that has improved backfire controller is set.
Concrete, above-mentioned thrust elastic component can be compression spring 5, the thrust elastic component is not limited only to compress spring 5 certainly, can also adopt other elastic component.When above-mentioned thrust elastic component is compression during spring 5, in order to make compression spring 5 more stably be provided with, be provided with reference column in the above-mentioned outlet nozzle 9, said taper non-return body 6 is provided with storage tank, compresses spring 5 and is set on the reference column and as in the storage tank.
The backfire controller that provides in the embodiment of the invention can prevent the tempering of various fuel gas; Clean energy resource is all being greatly developed in the whole world in recent years; The Chinese government is also significantly rising in the input of energy-saving and emission-reduction industry, and strengthens the scientific research investment to the clean fuel field.Hydrogen is the energy of environmental protection, cleaning in all combustibles, and hydrogen and oxygen combustion reaction can only produce heat energy and water.Brine electrolysis is the mode of the production hydrogen and oxygen gas mixture used always, and the development that China produces the existing recent two decades of hydrogen and oxygen gas mixture at brine electrolysis has begun to step into the large-scale production application stage at present.Temperature reaches 800 ℃ ~ 3200 ℃ during the hydrogen and oxygen gas mixture burning, is desirable industrial fuel substitute.
Because hydrogen and oxygen gas mixture does not need the extra oxygen that provides just can burn; So will in the pipeline auto-ignition combustion more rapidly take place in case the tempering burning occurs; To this tempering situation that is similar to hydrogen and oxygen gas mixture; Need have higher requirement to backfire controller, temperature is higher during owing to hydrogen and oxygen gas mixture tempering burning, and existing is that the back-fire relief body can not satisfy the back-fire relief requirement obviously with the steel wire; The back-fire relief body 2 that provides of the embodiment of the invention need be by more fire-resistant material for this reason; Concrete can be for having the foam chromium back-fire relief body (the back-fire relief body of promptly being processed by foam chromium) in hole, and concrete can be fine-celled foam chromium back-fire relief body, and it has better back-fire relief effect.The spontaneous combustion high temperature gas flow at first can promote taper non-return body 6 and blocks the fuel gas that flows out in the fine-celled foam chromium back-fire relief body 2 and then stop further tempering spontaneous combustion when tempering takes place;, extinguishes tempering initial penetration taper non-return body 6 when reaching fine-celled foam chromium back-fire relief body; This moment, the temperature in the fire-retardant chamber was still very high, was example with the hydrogen and oxygen gas mixture, temperature at this moment up to 1320 ℃ ~ 2650 ℃; Too high for fear of temperature; The backfire controller that present embodiment provides also comprises being arranged on and is set in backfire controller body 10 outsides, and forms the overcoat 3 in liquid cools chamber with backfire controller body 10 outer walls, has cooling fluid 4 in the cooling chamber; This overcoat 3 is provided with cooling fluid access port 8 and cooling fluid outlet 7, and both all pass to inflow and the outflow that realizes cooling fluid with the liquid cools chamber mutually.Avoided the repeated tempering phenomenon of the too high appearance of temperature of backfire controller through the cooling of cooling fluid.
In order further to optimize technique scheme, above-mentioned cooling fluid outlet 7 and cooling fluid access port 8 are separately positioned on the both sides of the axis of overcoat 3, and this kind structure makes cooling fluid to have improved cooling effect from an effluent of backfire controller to relative opposite side.Further, above-mentioned cooling fluid access port 8 is near suction nozzle 1, and cooling fluid outlet 7 is near outlet nozzle 9; Because the temperature of suction nozzle 1 is lower, cooling fluid gets into from cooling fluid access port 8 to be cooled off the lower position of temperature in advance, and the cooling fluid after temperature raises then flows to cooling fluid outlet 7; Because here near outlet nozzle 9; Temperature is higher, so the cooling fluid after temperature raises still has bigger heat absorption capacity, has improved the cooling effect to whole backfire controller.In order further to improve cooling effect, the coolant circulation system supporting with backfire controller can be set, and accelerate the cool cycles of cooling fluid through pump to backfire controller.Certainly specifically can carry out in several ways, be not limited in above-mentioned mode the cooling of backfire controller.
Above-mentionedly backfire controller is cooled off through cooling fluid; In order to reach better effect, in the backfire controller in the foregoing description, fin or needle-like radiating part can be set all on the radiating surface of the outer wall of backfire controller body 10 and said overcoat 3; Improve the self-radiating function of whole backfire controller; And then reach the purpose of fast cooling, concrete, each heat-exchange surface of above-mentioned backfire controller all can be provided with fin and needle-like radiating part; Those skilled in the art can carefully not state at this according to the corresponding scalability design of concrete applied environment situation.
Each parts in the backfire controller that present embodiment provides are high temperature resistant component, have very high heat-sinking capability simultaneously, except the improvement through structure to improve its heat sinking function; Can also consider that preferred, above-mentioned overcoat 3 is made for the heat conductivility preferred metal from the material aspect; Concrete can be copper overcoat; Backfire controller body 10 also can be processed for copper material, and is preferred, can also be coated with the chromium layer on the outer surface of above-mentioned copper overcoat.In order to increase area of dissipation, the suction nozzle 1 in the backfire controller that provides in the present embodiment and the outer surface of outlet nozzle 9 can be irregular curved surface, in limited length, make suction nozzle 1 and outlet nozzle 9 have higher area of dissipation, have improved radiating efficiency.
In the backfire controller that the embodiment of the invention provides, backfire controller body 10 can be the integrally casting moulding with overcoat 3, also can be made into the branch body structure and when assembling, carry out additional seal.This patent does not limit the molding structure of whole backfire controller.
The embodiment of the invention is not done qualification to the computer type of the concrete application of hard disk support bracket.To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. backfire controller; Comprise that two ends are respectively arranged with the backfire controller body (10) of suction nozzle (1) and outlet nozzle (9); Said backfire controller body (10) has the said suction nozzle (1) of connection and outlet nozzle (9), and the fire-retardant chamber of built-in back-fire relief body (2); It is characterized in that; The position that is positioned on the said backfire controller body (10) between said outlet nozzle (9) and the said fire-retardant chamber is provided with the taper containing cavity; And the bigger end of its cross-sectional area is near said outlet nozzle (9); Be provided with the taper non-return body (6) adaptive in the said taper containing cavity, under the source of the gas air-flow of setting pressure promotes, form the passage that is communicated with said outlet nozzle (9) and said fire-retardant chamber between the outer wall of said taper non-return body (6) and the said taper containing cavity inwall with said taper containing cavity.
2. backfire controller according to claim 1; It is characterized in that; Comprise that also an end is positioned on the said outlet nozzle (9), the other end is connected on said taper non-return body (6) end relative with said outlet nozzle (9) the thrust elastic component with the power that applies said taper containing cavity inwall.
3. backfire controller according to claim 2 is characterized in that, said thrust elastic component is compression spring (5).
4. backfire controller according to claim 3 is characterized in that, said outlet nozzle is provided with reference column in (9), and said taper non-return body (6) is provided with storage tank, and said compression spring (5) is set on the said reference column and places said storage tank.
5. backfire controller according to claim 1; It is characterized in that; Also comprise and be set in said backfire controller body (10) outside; And with the overcoat (3) in said backfire controller body (10) outer wall formation liquid cools chamber, it is provided with cooling fluid access port (8) and cooling fluid outlet (7).
6. backfire controller according to claim 5; It is characterized in that; Said cooling fluid access port (8) and cooling fluid outlet (7) are separately positioned on the both sides of the axis of said overcoat (3); And said cooling fluid access port (8) is near said suction nozzle (1), and said cooling fluid outlet (7) is near said outlet nozzle (9).
7. backfire controller according to claim 5 is characterized in that, is provided with fin or needle-like radiating part on the radiating surface of said backfire controller body (10) outer wall and said overcoat (3).
8. backfire controller according to claim 8 is characterized in that, said overcoat (3) is copper overcoat, and is coated with the chromium layer on the outer surface of said overcoat, and said backfire controller body is made of copper.
9. according to any described backfire controller among the claim 1-8, it is characterized in that said back-fire relief body (2) is for having the foam chromium back-fire relief body in hole.
10. backfire controller according to claim 9 is characterized in that, said back-fire relief body (2) is a fine-celled foam chromium back-fire relief body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210313420.6A CN102777916B (en) | 2012-08-29 | 2012-08-29 | Tempering preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210313420.6A CN102777916B (en) | 2012-08-29 | 2012-08-29 | Tempering preventing device |
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| Publication Number | Publication Date |
|---|---|
| CN102777916A true CN102777916A (en) | 2012-11-14 |
| CN102777916B CN102777916B (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210313420.6A Active CN102777916B (en) | 2012-08-29 | 2012-08-29 | Tempering preventing device |
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| Country | Link |
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| CN (1) | CN102777916B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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 |
| CN105240856B (en) * | 2015-10-18 | 2017-10-27 | 南通中兴多元复合钢管有限公司 | A kind of dry flashback arrestor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102777916B (en) | 2014-10-15 |
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Effective date of registration: 20151020 Address after: 410000, building 1904, building L3, Dongfang new town (East Gate), Furong farm, Furong district, Hunan, Changsha Patentee after: CHANGSHA KINGKAR ENVIRONMENT PROTECTION TECHNOLOGY CO., LTD. Address before: 100210, building 3, building 3, No. 7851, West well road, Badachu hi tech park, Beijing, Shijingshan District Patentee before: Beijing Zhongqi Huachen New Energy Technology Development Co.,Ltd. |