CN108844066A - It is a kind of prevent burning gases be tempered device and close ignition method - Google Patents
It is a kind of prevent burning gases be tempered device and close ignition method Download PDFInfo
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- CN108844066A CN108844066A CN201811029451.2A CN201811029451A CN108844066A CN 108844066 A CN108844066 A CN 108844066A CN 201811029451 A CN201811029451 A CN 201811029451A CN 108844066 A CN108844066 A CN 108844066A
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- acetylene
- valve
- gas
- hose
- tube
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- 239000007789 gas Substances 0.000 title claims abstract description 159
- 238000000034 method Methods 0.000 title claims abstract description 18
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims abstract description 133
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims abstract description 133
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000001301 oxygen Substances 0.000 claims abstract description 62
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 62
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 28
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052786 argon Inorganic materials 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 239000011261 inert gas Substances 0.000 claims description 11
- 150000001345 alkine derivatives Chemical class 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 229910017435 S2 In Inorganic materials 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 8
- 238000005496 tempering Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/38—Torches, e.g. for brazing or heating
- F23D14/40—Torches, e.g. for brazing or heating for welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/82—Preventing flashback or blowback
- F23D14/825—Preventing flashback or blowback using valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a kind of device for preventing burning gases to be tempered and close ignition method, the device for preventing burning gases to be tempered includes oxygen tube assembly, argon gas tube assembly and acetylene tube assembly, oxygen tube assembly includes oxygen hose and oxygen hose transit joint, argon gas tube assembly includes tunger tube and tunger tube transit joint, and acetylene tube assembly includes acetylene hose and acetylene hose transit joint；The pass ignition method for preventing burning gases to be tempered, includes the following steps：The first step installs oxy-acetylene gas combustion apparatus；Second step is passed through acetylene gas in acetylene pipeline, and acetylene gas enters oxy-acetylene mixing arrangement by acetylene pipeline, burning operation relevant to carrying out after oxygen mix；Third step opens shut-off valve, and the compressed air in Ignitable gas devices is entered in acetylene pipeline by shut-off valve, and compressed air is mixed into the mixed gas in second step, and mixed gas stops burning.
Description
Technical field
The invention belongs to rail welding fields, and in particular to it is a kind of prevent burning gases be tempered device and close ignition method.
Background technique
Many occasions are all carrying out heating burning, such as welding, workpiece heating, oxyacetylene metal-cutting using oxyacetylene torch at present, because
Its burning is at low cost, heating effect is good, heat source mobility is strong, is suitble to the features such as field non-transformer operation and is widely used.
In the use process of gas pressure welding of rail oxy-acetylene flame, there are still a series of problems by especially Guan Huoshi, such as normal
When closing fire or oxy-acetylene to close fire sequence incorrect and close gas velocity degree and will not will lead to rapidly and tempering phenomenon occur and cause flame is counter to burn
Pipeline happens.Such as：
1, Guan Huoshi, since shut-off valve and heater directly have residual gas, gas burning is insufficient, in heating gun or
Heater port or the intracavitary a certain amount of carbon distribution of generation, be easy to cause pipeline to pollute.
Oxygen is first closed when if 2, closing fire, since oxygen supplies deficiency, acetylene fails completely burned, and flame will generate largely
Black smoke, and generate a large amount of carbon distributions and be accumulated in heating gun, in heater chamber and in heating pipeline, cause pipeline to pollute.Pipeline is dirty
Dye be easy to cause oxyacetylene torch to be tempered, i.e., flame is burnt to channel interior is counter, causes peril.
3, it is not rapid to close fire, or switch be not turned off it is tight, it will lead in heating gun and pipeline that air pressure is too low, cause flame
Tempering is anti-to burn pipeline.
When change paving, weld multiple operation using gas pressure welding of rail, since the department that operation is related to is wide, the personnel of participation are set
Standby numerous, tempering will will lead to construction operation failure when welding, cause route normal open-minded, to bring heavy losses.
China caused by gas pressure welding construction welding tempering every year because lose very huge.While each tempering bring pipeline-cleaning,
The equipment amount of resuming work.
Summary of the invention
Present invention aim to address the above problem, provide that a kind of principle is simple, and easy to operate, scrap build is convenient；?
When burning gases close fire, mixed gas is blocked to achieve the purpose that close fire using compressed gas, combustion can be efficiently solved
Gas burning Guan Huoshi is burnt since burning gases are unable to the burning gases tempering of full combustion and bring pollution pipeline problem
Device and pass ignition method.
The technical scheme is that：A kind of device for preventing burning gases to be tempered, including oxygen tube assembly, tunger tube group
Part and acetylene tube assembly, oxygen tube assembly include oxygen hose and oxygen hose transit joint, and the end of oxygen hose is equipped with the first electromagnetism
The middle part of valve, oxygen hose is equipped with first manual shut-off valve and the first check valve；Argon gas tube assembly includes tunger tube and tunger tube mistake
Connector is crossed, the end of tunger tube is equipped with second solenoid valve, and the middle part of tunger tube is equipped with the second hand stop valve；Acetylene tube assembly packet
Acetylene hose and acetylene hose transit joint are included, the end of acetylene hose is equipped with third solenoid valve, is equipped with third in the middle part of acetylene hose and cuts manually
Only valve and second one-way valve, tunger tube be connected to the end of acetylene hose by threeway transit joint after again with acetylene mixing tube phase
Even；Oxygen hose, tunger tube and acetylene hose are connected by gas valve block, and the first check valve can make the oxygen one-way flow in oxygen hose
Dynamic, second one-way valve can make the acetylene gas one-way flow in acetylene hose；Oxygen hose by oxygen hose transit joint respectively with
Gas valve block, the first solenoid valve are connected with first manual shut-off valve, tunger tube by tunger tube transit joint respectively with gas trap
Block, second solenoid valve are connected with the second hand stop valve, and acetylene hose is cut with gas valve block, third solenoid valve and third manually respectively
Only valve connects.
Preferably, the gas valve block is sheathed on oxygen hose, tunger tube and acetylene hose by transit joint, the first electromagnetism
Valve, second solenoid valve and third solenoid valve constitute electromagnetic valve component, first manual shut-off valve, the second hand stop valve and third hand
Dynamic shut-off valve constitutes manual shutoff valve module, and gas valve block is between electromagnetic valve component and manual shutoff valve module.
Preferably, first solenoid valve, second solenoid valve and third solenoid valve parallel arrangement.
Preferably, the tunger tube is connected with Ignitable gas devices, and internal compressed air is passed through by Ignitable gas devices
Inside tunger tube, Ignitable gas devices is connected with the end that tunger tube is equipped with second solenoid valve.
Preferably, the end of the tunger tube and acetylene hose is connected by threeway transit joint, can also use small valve block
Connection, small valve block are sheathed on the end of tunger tube and acetylene hose.
Preferably, the end of the tunger tube and acetylene hose is connected to after the connection of the inside of small valve block with acetylene mixing tube.
The invention also discloses a kind of pass ignition methods for preventing burning gases to be tempered, and include the following steps：
S1, oxy-acetylene gas combustion apparatus is installed, combustion apparatus includes sequentially connected Ignitable gas devices, shut-off valve
And transit joint, Ignitable gas devices are connected with shut-off valve by pipeline, shut-off valve is connected by pipeline with transit joint, acetylene
Pipeline is arranged in transit joint, the device that acetylene hose road is provided with check valve and burning gases is prevented to be tempered, and check valve can make
Gas unidirectional flowing in acetylene pipeline；
S2, acetylene gas being passed through in acetylene pipeline, acetylene gas enters oxy-acetylene mixing arrangement by acetylene pipeline, with
Relevant burning operation is carried out after oxygen mix；
After S3, in step s 2 mixed gas are burnt, Guan Huoshi is needed, opens shut-off valve, the pressure in Ignitable gas devices
Contracting air is entered in acetylene pipeline by shut-off valve, and compressed air is mixed into the mixed gas in step S2, and mixed gas stops
Burning.
Preferably, shut-off valve can be manually-operated gate in the step S1.Solenoid valve can also be used, solenoid valve can pass through electricity
Road is controlled.
Preferably, the compressed gas filled in Ignitable gas devices in the step S1 can be compressed air, can also be with
Using inert gas, such as argon gas.
Preferably, transit joint is located at the middle part of acetylene pipeline in the step S1, and transit joint is located at oxy-acetylene mixing
Between device and acetylene gas source, acetylene gas source provides acetylene gas for acetylene pipeline.
The beneficial effects of the invention are as follows：The device provided by the present invention for preventing burning gases to be tempered and pass ignition method principle
Simply, easy to operate, scrap build is convenient, thoroughly prevented that oxy-acetylene volumetric combustion closes that various situations when fire occur due to
Acetylene is unable to full combustion and bring pollutes pipeline problem.
Detailed description of the invention
Fig. 1 is a kind of step flow chart for the pass ignition method for preventing burning gases to be tempered of the present invention；
Fig. 2 is a kind of pass ignition method schematic illustration for preventing burning gases to be tempered of the present invention；
Fig. 3 is a kind of structural schematic diagram for the device for preventing burning gases to be tempered of the present invention.
Description of symbols：1, oxygen tube assembly；2, argon gas tube assembly；3, acetylene tube assembly；4, acetylene mixing tube； 5,
Small valve block；6, gas valve block；11, the first solenoid valve；12, first manual shut-off valve；13, the first check valve；14, oxygen hose mistake
Cross connector；20, tunger tube；21, second solenoid valve；22, the second hand stop valve；24, tunger tube transit joint；30, acetylene hose；
31, third solenoid valve；32, third hand stop valve；33, second one-way valve；34, acetylene hose transit joint；210, compressed gas
Device；211, shut-off valve；212, transit joint；213, acetylene pipeline；214, check valve；215, burning gases is prevented to be tempered
Device.
Specific embodiment
The present invention is described further in the following with reference to the drawings and specific embodiments：
As shown in Fig. 1 to Fig. 3, a kind of pass ignition method for preventing burning gases to be tempered provided by the invention, including following step
Suddenly：
S1, oxy-acetylene gas combustion apparatus is installed, combustion apparatus includes sequentially connected Ignitable gas devices 210, mistake
Connector 212 and shut-off valve 211 are crossed, Ignitable gas devices 210 is connected with shut-off valve 211 by pipeline, and shut-off valve 211 passes through pipeline
It is connected with transit joint 212, acetylene pipeline 213 is arranged in transit joint 212, and check valve 214 is provided on acetylene pipeline 213
With the device 215 for preventing burning gases to be tempered, check valve 214 can be such that the gas unidirectional in acetylene pipeline 213 flows.
Shut-off valve 211 is conventional manual valve in this step, or is solenoid valve, and solenoid valve can be controlled by circuit
System.In the present embodiment, Ignitable gas devices 210, transit joint 212, shut-off valve 211, acetylene pipeline 213, check valve 14 are equal
For existing mature technology equipment.The gas filled in Ignitable gas devices 210 is inert gas, and inert gas is such as：Argon gas etc., it is lazy
Property gas cannot be burned.
Transit joint 212 is located at the middle part of acetylene pipeline 213, and transit joint 212 is located at oxy-acetylene mixing arrangement and acetylene
Between gas source, acetylene gas source is that acetylene pipeline 213 provides acetylene gas.Can shut-off valve 211 can control inert gas enter
Inside acetylene pipeline 213.
S2, it is passed through that acetylene gas is mixed, and acetylene gas is connect inside acetylene pipeline 213 by transition in acetylene pipeline 213
Enter oxy-acetylene mixing arrangement, burning operation relevant to carrying out after oxygen mix after first 212.
After S3, in step s 2 mixed gas are burnt, Guan Huoshi is needed, opens shut-off valve 211, Ignitable gas devices 210
In compressed air by shut-off valve 211 enter transit joint 212 and then enter acetylene pipeline 213 in, compressed air and step
The acetylene gas of rapid S2 is mixed and fed into mixing arrangement, and mixed gas stops burning.
After compressed air passes through shut-off valve 211, it is introduced into transit joint 212, is then entered again by transit joint 212
In acetylene pipeline 213.After compressed air and acetylene gas, oxygen mix, the gas originally to burn in work extinguishes, and no longer fires
It burns.
In the mixed gas flame combustion process of oxygen and acetylene gas, Guan Huoshi is needed, shut-off valve 211 is opened, makes to compress
Inert gas in gas device 210 makes flame stop firing immediately because of acetylene deficiency if argon gas enters in acetylene pipeline 213
It burns, without generating carbon distribution or acetylene deficiency since acetylene combustion is insufficient, flame is counter to be burnt into heater because directly closing gas
It is interior.Simultaneously because being provided with check valve 214 in acetylene pipeline 213, check valve 214 is prevented due to hypertonia, compressed gas dress
It sets the gas in 210 and enters acetylene cylinder direction.Due to there is continuous compressed air to enter in acetylene pipeline 213, acetylene pipeline 213
It is interior to continue there are the outflow of the air-flow of pressure, without generating detonation because of intracavitary external differential and being tempered because of heating gun or heater,
Therefore whole process solves the generation of carbon distribution and detonation tempering phenomenon when closing fire.
The present invention also provides a kind of devices 215 for preventing burning gases to be tempered, including oxygen tube assembly 1, tunger tube group
Part 2 and acetylene tube assembly 3, oxygen tube assembly 1 include oxygen hose 10 and oxygen hose transit joint 14, and the end of oxygen hose 10 is set
There is the first solenoid valve 11, the middle part of oxygen hose 10 is equipped with first manual shut-off valve 12 and the first check valve 13.Argon gas tube assembly 2
Including tunger tube 20 and tunger tube transit joint 24, the end of tunger tube 20 is equipped with second solenoid valve 21, the middle part of tunger tube 20
Equipped with the second hand stop valve 22.Acetylene tube assembly 3 includes acetylene hose 30 and acetylene hose transit joint 34, the end of acetylene hose 30
Portion is equipped with third solenoid valve 31, is equipped with third hand stop valve 32 and second one-way valve 33 in the middle part of acetylene hose 30.Tunger tube 20 with
It is connected after the end connection of acetylene hose 30 with acetylene mixing tube 4, the end that tunger tube 20 is connected with acetylene hose 30 is equipped with threeway
Transit joint or small valve block 5.Oxygen hose 10, tunger tube 20 and acetylene hose 30 are connected by gas valve block 6,13 energy of the first check valve
Enough make the oxygen one-way flow in oxygen hose 10, second one-way valve 33 can make the acetylene gas one-way flow in acetylene hose 30.
Oxygen hose 10 is connected with gas valve block 6, the first solenoid valve 11 and first manual shut-off valve 12 respectively by oxygen hose transit joint 14
Connect, tunger tube 20 by tunger tube transit joint 24 respectively with gas valve block 6, second solenoid valve 21 and the second hand stop valve 22
Connection, acetylene hose 20 are connect with gas valve block 6, third solenoid valve 31 and third hand stop valve 32 respectively.
Gas valve block 6 is sheathed on oxygen hose 10, tunger tube 20 and acetylene hose 30 by transit joint, the first solenoid valve
11, second solenoid valve 21 and third solenoid valve 31 constitute electromagnetic valve component, first manual shut-off valve 12, the second hand stop valve 22
Manual shutoff valve module is constituted with third hand stop valve 32, gas valve block 6 is located at electromagnetic valve component and manual shutoff valve module
Between.
First solenoid valve 11, second solenoid valve 21 and third solenoid valve 31 are arranged in parallel, in actual use, first
The position of solenoid valve 11, second solenoid valve 21 and third solenoid valve 31 can be arranged according to practical service environment.First electricity
Magnet valve 11 is for carrying out automatically controlling the on-off for the oxygen being passed through oxygen hose 10 inside, and second solenoid valve 21 is for being passed through argon
The on-off of compressed gas inside tracheae 20 carries out automatically controlling, and third solenoid valve 31 is used for the second being passed through inside acetylene hose 30
The on-off of alkynes gas carries out automatically controlling.First manual shut-off valve 12, the second hand stop valve 22 and third hand stop valve 32
Function, corresponding identical as the function of the first solenoid valve 11, second solenoid valve 21 and third solenoid valve 31, area's otherwise exists
In electromagnetic valve component is the automatic control realized by electromagnetic principle, and manual shutoff valve module is carried out by operator
It manually controls, gas source can be closed by manually mode when electromagnetism defective valve.
Tunger tube 20 is connected with Ignitable gas devices, and internal compressed air is passed through in tunger tube 20 by Ignitable gas devices
Portion, Ignitable gas devices are connected with the end that tunger tube 20 is equipped with second solenoid valve 21.Ignitable gas devices is inert gas
Argon gas, in actual use, inert gas are not only only limited to argon gas, other inert gases, as long as can make in burning
Oxygen and remaining inert gas for extinguishing of acetylene gas can also be with.
The end of tunger tube 20 and acetylene hose 30 is located at the inside of small valve block 5, tunger tube 20 and acetylene hose 30 in threeway or
It is connected to after being connected to inside small valve block 5 with acetylene mixing tube 4.Small valve block 5 is existing mature technology, and small valve block 5 is sheathed on tunger tube
20 provide the effect connecting with the end of acetylene hose 30, connection of the small valve block 5 for tunger tube 20 with acetylene hose 30 in end.
And it is exported after connecting tunger tube 20 with acetylene hose 30 with a root canal road, is then connected with acetylene mixing tube 4.
In the present embodiment, the first solenoid valve 11, second solenoid valve 22, third solenoid valve 31, first manual shut-off valve
12, the second hand stop valve 22, third hand stop valve 32, the first check valve 13 and second one-way valve 33 are existing mature skill
Art equipment.In actual use, the equipment that can reach identical function can use.
Working principle to facilitate the understanding of the present invention describes the course of work of the invention one time again：Pass through outside
Oxygen is entered oxygen hose 10 by the first solenoid valve 11 by source of oxygen；Acetylene source by acetylene gas by third solenoid valve 31 into
Enter acetylene hose 30, the oxygen in oxygen hose 10 passes through first manual shut-off valve 12 and the first check valve 13；Second in acetylene hose 30
After alkynes gas is by third hand stop valve 32 and second one-way valve 33, enter relevant apparatus after oxygen and acetylene gas mixing
It is ignited for related operation.The first check valve 13 in oxygen hose 10 and the second one-way valve 33 on acetylene hose 30 make oxygen
With acetylene gas one-way flow, the case where without flowing backwards.
When needing Guan Huoshi, compressed air or inert gas, inertia are passed through into tunger tube 20 by Ignitable gas devices
Gas enters acetylene mixing tube 4 by the second hand stop valve 22, and then the mixed gas again with oxygen and acetylene mixes.Combustion
The oxy-acetylene mixed gas of burning is extinguished immediately.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.This field
Those of ordinary skill disclosed the technical disclosures can make according to the present invention and various not depart from the other each of essence of the invention
The specific variations and combinations of kind, these variations and combinations are still within the scope of the present invention.
Claims (10)
1. a kind of device for preventing burning gases to be tempered, it is characterised in that：Including oxygen tube assembly (1), argon gas tube assembly (2) and
Acetylene tube assembly (3), oxygen tube assembly (1) include oxygen hose (10) and oxygen hose transit joint (14), the end of oxygen hose (10)
Portion is equipped with the first solenoid valve (11), and the middle part of oxygen hose (10) is equipped with first manual shut-off valve (12) and the first check valve (13)；
Argon gas tube assembly (2) includes tunger tube (20) and tunger tube transit joint (24), and the end of tunger tube (20) is equipped with the second electromagnetism
The middle part of valve (21), tunger tube (20) is equipped with the second hand stop valve (22)；Acetylene tube assembly (3) includes acetylene hose (30) and second
The end of alkynes tube transitions connector (34), acetylene hose (30) is equipped with third solenoid valve (31), and third hand is equipped in the middle part of acetylene hose (30)
Dynamic shut-off valve (32) and second one-way valve (33), tunger tube (20) are connected to the end of acetylene hose (30) by threeway transit joint
It is connected again with acetylene mixing tube (4) afterwards；Oxygen hose (10), tunger tube (20) are connected with acetylene hose (30) by gas valve block (6),
First check valve (13) can make the oxygen one-way flow in oxygen hose (10), and second one-way valve (33) can make acetylene hose (30)
Interior acetylene gas one-way flow；Oxygen hose (10) by oxygen hose transit joint (14) respectively with gas valve block (6), first electricity
Magnet valve (11) and first manual shut-off valve (12) connection, tunger tube (20) by tunger tube transit joint (24) respectively with gas trap
Block (6), second solenoid valve (21) and the second hand stop valve (22) connection, acetylene hose (20) respectively with gas valve block (6), third
Solenoid valve (31) and third hand stop valve (32) connection.
2. a kind of device for preventing burning gases to be tempered according to claim 1, it is characterised in that：The gas valve block
(6) it is sheathed on oxygen hose (10), tunger tube (20) and acetylene hose (30) by transit joint, the first solenoid valve (11), second
Solenoid valve (21) and third solenoid valve (31) constitute electromagnetic valve component, first manual shut-off valve (12), the second hand stop valve
(22) and third hand stop valve (32) constitutes manual shutoff valve module, and gas valve block (6) is located at electromagnetic valve component and cuts manually
Only between valve module.
3. a kind of device for preventing burning gases to be tempered according to claim 1, it is characterised in that：First solenoid valve
(11), second solenoid valve (21) and third solenoid valve (31) parallel arrangement.
4. a kind of device for preventing burning gases to be tempered according to claim 1, it is characterised in that：The tunger tube (20)
It is connected with Ignitable gas devices, internal compressed air is passed through tunger tube (20) inside, compressed gas dress by Ignitable gas devices
The end for being equipped with second solenoid valve (21) with tunger tube (20) is set to be connected.
5. a kind of device for preventing burning gases to be tempered according to claim 1, it is characterised in that：The tunger tube (20)
It is connect, can also be connected using small valve block (5), small valve block (5) is arranged by threeway transit joint with the end of acetylene hose (30)
In the end of tunger tube (20) and acetylene hose (30).
6. a kind of device for preventing burning gases to be tempered according to claim 1, it is characterised in that：The tunger tube (20)
It is connected to after the inside of small valve block (5) is connected to acetylene mixing tube (4) with the end of acetylene hose (30).
7. a kind of pass ignition method for preventing burning gases to be tempered, which is characterized in that include the following steps：
S1, oxy-acetylene gas combustion apparatus is installed, combustion apparatus includes sequentially connected Ignitable gas devices (210), cut-off
Valve (211) and transit joint (212), Ignitable gas devices (210) and shut-off valve (211) are connected by pipeline, shut-off valve (211)
It is connected by pipeline with transit joint (212), acetylene pipeline (213) is arranged in transit joint (212), on acetylene pipeline (213)
The device (215) for being provided with check valve (214) and burning gases being prevented to be tempered, check valve (214) can make in acetylene pipeline (213)
Gas unidirectional flowing；
S2, acetylene gas is passed through in acetylene pipeline (213), acetylene gas is mixed by acetylene pipeline (213) into oxy-acetylene
Device, burning operation relevant to being carried out after oxygen mix；
After S3, in step s 2 mixed gas are burnt, Guan Huoshi is needed, is opened shut-off valve (211), Ignitable gas devices (210)
In compressed air by shut-off valve (211) enter acetylene pipeline (213) in, compressed air is mixed into the mixed gas in step S2
In, mixed gas stops burning.
8. a kind of pass ignition method for preventing burning gases to be tempered according to claim 7, which is characterized in that the step S1
Middle shut-off valve (211) can be manually-operated gate.Solenoid valve can also be used, solenoid valve can be controlled by circuit.
9. a kind of pass ignition method for preventing burning gases to be tempered according to claim 7, which is characterized in that the step S1
The compressed gas filled in middle Ignitable gas devices (210) can be compressed air, can also use inert gas, such as argon gas.
10. a kind of pass ignition method for preventing burning gases to be tempered according to claim 7, which is characterized in that the step
Transit joint (212) is located at the middle part of acetylene pipeline (213) in S1, and transit joint (212) is located at oxy-acetylene mixing arrangement and second
Between alkynes gas source, acetylene gas source is that acetylene pipeline (213) provide acetylene gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811029451.2A CN108844066B (en) | 2018-09-05 | 2018-09-05 | Device for preventing combustion gas from backfire and fire closing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811029451.2A CN108844066B (en) | 2018-09-05 | 2018-09-05 | Device for preventing combustion gas from backfire and fire closing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108844066A true CN108844066A (en) | 2018-11-20 |
| CN108844066B CN108844066B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811029451.2A Active CN108844066B (en) | 2018-09-05 | 2018-09-05 | Device for preventing combustion gas from backfire and fire closing method |
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| CN209147091U (en) * | 2018-09-05 | 2019-07-23 | 成都瑞威交通科技有限公司 | A kind of device for preventing burning gases to be tempered |
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