CN104456563B - Injection type anti-tempering cutting torch - Google Patents
Injection type anti-tempering cutting torch Download PDFInfo
- Publication number
- CN104456563B CN104456563B CN201410629078.XA CN201410629078A CN104456563B CN 104456563 B CN104456563 B CN 104456563B CN 201410629078 A CN201410629078 A CN 201410629078A CN 104456563 B CN104456563 B CN 104456563B
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- Prior art keywords
- groove
- fire
- pipe
- cutting torch
- nozzle
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Classifications
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- 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
- F23D14/42—Torches, e.g. for brazing or heating for cutting
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention provides an injection type anti-tempering cutting torch, and belongs to the technical field of combustors. The injection type anti-tempering cutting torch solves the problems that an existing anti-tempering cutting torch is poor in anti-tempering performance and high in cost. The injection type anti-tempering cutting torch comprises a handle assembly, a cutting nozzle connector, a cutting nozzle assembly arranged on the cutting nozzle connector and a mixed gas pipe with the two ends connected to the handle assembly and the cutting nozzle connector respectively. A fire stop pipe is arranged in the cutting nozzle connector. Mixed gas output by the mixed gas pipe penetrates through the fire stop pipe and is conveyed to the cutting nozzle assembly. The injection type anti-tempering cutting torch has the advantages of being good in anti-tempering performance and good in structural stability.
Description
Technical field
The invention belongs to technical field of burner, it is related to a kind of cutting torch, particularly a kind of jet absorption type Backfire preventing cutting torch.
Background technology
The effect of cutting torch is so that oxygen is mixed in proportion with acetylene, forms pre- thermal-flame, and pure oxygen in high pressure is ejected into
On cut workpiece, cut metal is made to burn in oxygen jet, oxygen jet simultaneously blows the slag (oxide) generating that burns
Walk and form slot.Cutting torch is the main tool of gas cutting workpiece.When gas cutting, gas welding, flame back into welding torch and continue in neck or
Mixing chamber burns, and can switch to hiss by explosion with flame entrance welding torch and recall fire.Tempering phenomenon is once occur, gently then
There is the explosive sound of ", " in welding torch, seriously then can burn out weldering, cutting torch and cause acetylene generator explosion accident, in reality
Border often has generation in mixture pipe to be tempered and explode in using, the cutting torch at present with fire protecting performance adopts the work of equal pressure
Make mode.
Chinese patent cn102759104a discloses a kind of efficient Backfire preventing cutting torch not stopped working, including rear portion junctor, outward
Portion arranges wireway, mid-section body, cutting oxygen pipe, mixture pipe and the cutting torch of handle, and rear portion junctor passes through wireway and middle part
Main body connects, and connects cutting oxygen pipe and mixture pipe, described mixture pipe and cutting torch between mid-section body and cutting head joint respectively
It is connected with fireproof tempering device between joint；Described fireproof tempering device is spiral line component, including spiral base and spiral bar, described spiral shell
Rotation bar is fastened in described spiral base, and spiral bar one end is connected with spiral base.
Above-mentioned cutting torch adopts the threaded mixture pipe of fireproof tempering device and cutting head joint in the problem preventing from being tempered
Between, back-fire arrangement two ends connect to be needed to increase by two joints, easily makes the poor sealing of mixture pipe, and because anti-backfire
Device is spiral line component, and structure is more complicated, high cost.
Content of the invention
The purpose of the present invention is that there are the problems referred to above for existing technology it is proposed that a kind of anti-backfire performance is good, structure
The jet absorption type Backfire preventing cutting torch of good stability.
The purpose of the present invention can be realized by following technical proposal: a kind of jet absorption type Backfire preventing cutting torch, including handle group
Part, cut nozzle joint, be arranged on the mixing cut nozzle assembly, two ends are respectively connecting to Handleset and cut nozzle joint cutting on nozzle joint
It is characterised in that described cutting is provided with fire-stopping pipe in nozzle joint, in described mixture pipe, the mixing air infiltration of output crosses only fire to tracheae
Manage and be delivered to and cut nozzle assembly.
In a kind of above-mentioned jet absorption type Backfire preventing cutting torch, described fire-stopping pipe hollow and both ends open, in the pipe of fire-stopping pipe
There is tiny air gap channel in wall.
In a kind of above-mentioned jet absorption type Backfire preventing cutting torch, described cut the groove that annular is offered on nozzle joint, described
Fire-stopping pipe is arranged in groove and the wall thickness of fire-stopping pipe is less than the width of groove, described fire-stopping pipe by groove be divided into outer groove and
Inner groove, described outer groove connect with mixture pipe and outer groove with cut nozzle joint sealing, described inner groove is communicated to and cuts nozzle group
Part.
In a kind of above-mentioned jet absorption type Backfire preventing cutting torch, protrude above a circle bayonet socket in the opening of groove, the one of fire-stopping pipe
End is inserted and is limited in groove, and the other end fixes on bayonet socket.
In a kind of above-mentioned jet absorption type Backfire preventing cutting torch, described cut offer on nozzle joint oxygen outlet, mixing pore and
Installing hole, described groove with oxygen outlet coaxial line and is looped around outside oxygen outlet, and described cutting offers out along axis on nozzle assembly
Pore, the described nozzle assembly that cuts is arranged on installation in the hole and venthole is communicated to oxygen outlet, and described cutting offers mixing on nozzle assembly
Air flue, described inner groove and mixed airway are interconnected.
In a kind of above-mentioned jet absorption type Backfire preventing cutting torch, the described nozzle assembly that cuts includes give vent to anger part and air-guide part, described go out
Pore is opened in gives vent to anger on part, described part of giving vent to anger include taper type connecting portion, from connecting portion one end protrude air guide portion and from
The extension that the connecting portion other end protrudes, described connecting portion pushes against and is sealed on installing hole and air guide portion seals to oxygen outlet,
Form cushion chamber, described cushion chamber is communicated to inner groove, and described air-guide part is threaded between described air guide portion and installing hole
Give vent to anger on part and air-guide part and give vent to anger and form mixed airway between part, described connecting portion offers several gas ports, described
Gas port connection mixed airway and cushion chamber.
In a kind of above-mentioned jet absorption type Backfire preventing cutting torch, described cutting offers threaded portion on nozzle joint, is giving vent to anger on part
It is arranged with locking nut, described locking nut is resisted against on connecting portion and is screw-coupled to threaded portion.
In a kind of above-mentioned jet absorption type Backfire preventing cutting torch, it is also associated with penetrating suction between described mixture pipe and Handleset
Pipe.
Compared with prior art, the method have the advantages that
1st, fire-stopping pipe is set, gaseous mixture can be made to enter into along air gap channel and cut in nozzle assembly, because air gap channel is thin
The characteristic of passage aisle, can stop flame from passing through fire-stopping pipe to enter in mixture pipe and cause the explosion of mixture pipe, prevent from being tempered
Performance is good, and structure is reliable.
2nd, cylindrical being arranged on of fire-stopping pipe is cut in nozzle joint, and monnolithic case is little, and structure is simple, low cost.
3rd, groove is divided into inner groove and outer groove by fire-stopping pipe, and inner groove is connected with mixed airway, the width of inner groove
Quantity that is little, can effectively stoping flame from passing through, plays the effect of only fire, can not affect cutting torch quickly through gaseous mixture again
Using effect, clever structure.
4th, give vent to anger part and adopt conical contact surface construction, good sealing effect with the connecting portion 215 cutting nozzle joint.
5th, this cutting torch adopts the Backfire preventing cutting torch of jet absorption type, has that structure is simple, feature easy to use.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the mplifying structure schematic diagram at a in the present invention.
In figure, 1, cut nozzle joint；11st, oxygen outlet；12nd, mix pore；13rd, installing hole；14th, threaded portion；15th, bayonet socket；16、
Groove；161st, inner groove；162nd, outer groove；17th, cushion chamber；18th, locating slot；2nd, cut nozzle assembly；21st, give vent to anger part；211st, give vent to anger
Hole；212nd, gas port；213rd, air guide portion；214th, extension；215th, connecting portion；22nd, air-guide part；23rd, mixed airway；3rd, only fiery
Pipe；4th, Handleset；41st, gas valve；42nd, oxygen valve；43rd, oxygen hose；44th, Gas Pipe；45th, valve body；5th, mixture pipe；6th, cut
Cut oxygen pipe；7th, injecting tube；8th, locking nut.
Specific embodiment
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As depicted in figs. 1 and 2, this jet absorption type Backfire preventing cutting torch, including Handleset 4, cuts nozzle joint 1, is arranged on and cuts nozzle
The mixture pipe 5 and the cutting oxygen pipe 6 that cut nozzle assembly 2, two ends are respectively connecting to Handleset 4 and cut nozzle joint 1 on joint 1,
It is also associated with injecting tube 7 between mixture pipe 5 and Handleset 4, Handleset 4 is respectively communicated with oxygen hose 43 and Gas Pipe
44, Handleset 4 includes valve body 45 and the oxygen valve 42 being arranged on valve body 45 and gas valve 41, oxygen valve 42 and gas valve 41
The flow of control oxygen and gaseous mixture and pressure, cut and are provided with fire-stopping pipe 3 in nozzle joint 1 respectively, and in mixture pipe 5, output is mixed
Close air infiltration to cross fire-stopping pipe 3 and be delivered to and cut nozzle assembly 2.
Cut the groove 16 that annular is offered on nozzle joint 1, fire-stopping pipe 3 hollow and both ends open is cylindrical, as excellent
Choosing is formed using powder of stainless steel particle sintering, there is tiny air gap channel in the tube wall of fire-stopping pipe 3, gaseous mixture can be along gas
Gap passage flow runs through the tube wall of fire-stopping pipe 3, and fire-stopping pipe 3 is arranged in groove 16 and the wall thickness of fire-stopping pipe 3 is less than groove 16
Width, groove 16 is divided into outer groove 162 and inner groove 161, the interior table of the inner surface of fire-stopping pipe 3 and groove 16 by fire-stopping pipe 3
Form inner groove 161 between face, form outer groove 162 between the outer surface of the outer surface of fire-stopping pipe 3 and groove 16, in groove 16
Opening protrude above a circle bayonet socket 15, offer locating slot 18 in the bottom of groove 16, one end insertion locating slot 18 of fire-stopping pipe 3
And be limited in groove 16, the other end of fire-stopping pipe 3 fixes on bayonet socket 15, and outer groove 162 is connected and outer shroud with mixture pipe 5
Seal between groove 162 and bayonet socket 15, gaseous mixture can only flow into the tube wall of fire-stopping pipe 3, fire-stopping pipe 3 of going forward side by side by outer groove 162
Tube wall is circulated to inner groove 161, and inner groove 161 is communicated to and cuts nozzle assembly 2.
Cutting in nozzle joint 1 installation fire-stopping pipe 3, flame can not be by tiny air gap channel it is impossible in air gap channel
Burning, plays the effect of only fire, prevents flame from exploding in mixture pipe 5, prevents the performance being tempered good；Setting inner groove 161
With outer groove 162, outer groove 162 is looped around outside inner groove 161, is easy to gaseous mixture and uniformly oozed fire-stopping pipe 3 from outer groove 162
Enter in inner groove 161, and then be circulated to and cut nozzle assembly 2, gas circulation is rapid, stable gas pressure, good cutting effect；Fire-stopping pipe 3
It is fastened in locating slot 18, easy for installation, positioning is rapid.
As shown in Fig. 2 cut offering oxygen outlet 11, mixing pore 12 and installing hole 13 on nozzle joint 1, oxygen outlet 11 connects
To cutting oxygen pipe 6, mix pore 12 and be communicated to mixture pipe 5, at the opening of installing hole 13, be arranged to taper seat, groove 16 and oxygen
Pore 11 coaxial line and being looped around outside oxygen outlet 11, mixing pore 12 is vertical with the side wall of groove 16, cuts on nozzle assembly 2 along axle
Line offers venthole 211, cuts that nozzle assembly 2 is arranged in installing hole 13 and venthole 211 is communicated to oxygen outlet 11, cuts nozzle assembly
Offer mixed airway 23 on 2, mixed airway 23 conveying gaseous mixture to the end cutting nozzle assembly 2 and can be lighted, inner groove 161 with
Mixed airway 23 is interconnected.
Cut nozzle assembly 2 and include give vent to anger part 21 and air-guide part 22, venthole 211 is opened in gives vent to anger on part 21, and part 21 of giving vent to anger wraps
Include connecting portion 215, the air guide portion 213 from connecting portion 215 one end protrusion and the prolonging from connecting portion 215 other end protrusion of taper type
Long portion 214, cuts and offers threaded portion 14 on nozzle joint 1, is arranged with locking nut 8 giving vent to anger on part 21, and locking nut 8 is resisted against
Connecting portion 215 is bored the one end at bottom and is screw-coupled to threaded portion 14, so that connecting portion 215 is pushed against and is sealed on installing hole 13 and air guide portion
213 seal to oxygen outlet 11, and the external diameter in air guide portion 213 is less than the internal diameter of installing hole 13, between air guide portion 213 and installing hole 13
Form cushion chamber 17, cushion chamber 17 is communicated to inner groove 161, air-guide part 22 be threaded on part 21 of giving vent to anger and air-guide part 22 with
Form mixed airway 23 between extension 214, several gas ports 212, gas port 212 are uniformly offered on connecting portion 215
Connection mixed airway 23 and cushion chamber 17.
The connecting portion 215 of setting cone, gas be difficult from cut nozzle assembly 2 and cut between nozzle joint 1 contact surface let out
Dew, good seal performance；Groove 16 and oxygen outlet 11 coaxial line, the lateral wall opening up oxygen outlet 11 in cutting nozzle joint 1 opens up
Groove 16, meanwhile, mixing pore 12 is vertical and the side wall of groove 16 being communicated in groove 16, thus gaseous mixture can be delivered to
In groove 16, simple for structure, reduce the volume cutting nozzle joint 1 entirety, save material；Setting cushion chamber 17 can make gaseous mixture exist
Converge in cushion chamber 17, keep the stability of gas output；On the threaded part 21 of giving vent to anger of air-guide part 22 and form mixed airway
23, union piece is few, and structure is simple, and mixed airway 23 homogeneity is good, Stability Analysis of Structures.
In an initial condition, oxygen is adjusted after pressure the present invention from the oxygen valve 42 Handleset 4, flows through cutting oxygen pipe
Venthole 211 is entered through oxygen outlet 11, combustion gas is entered mixing chamber after gas valve 41 regulation and mixed with partial oxidation, warp after 6
Injecting tube 7 adjusts flow velocity and enters mixture pipe 5, and gaseous mixture flows into and around from mixing pore 12 and fills full outer groove 162,
Then the air gap channel through fire-stopping pipe 3 for the gaseous mixture enters in inner groove 161, and the gaseous mixture of inner groove 161 converges to cushion chamber 17,
The gaseous mixture of cushion chamber 17 enters gas port 212 and flows in mixed airway 23, and has output, gaseous mixture in the outlet of mixed airway 23
Road 23 is concordant with venthole 211, lights gaseous mixture, and cutting torch can cut steel part；During tempering, because flame can not pass through fire-stopping pipe
3 air gap channel, thus, will not fire in mixture pipe 5, have a safety feature, anti-backfire performance is good.
Specific embodiment described herein is only explanation for example to present invention spirit.The affiliated technology of the present invention is led
The technical staff in domain can be made various modifications or supplement or replaced using similar mode to described specific embodiment
Generation, but the spirit without departing from the present invention or surmount scope defined in appended claims.
Claims (6)
1. a kind of jet absorption type Backfire preventing cutting torch, including Handleset, cut nozzle joint, be arranged on cut on nozzle joint cut nozzle assembly,
Two ends are respectively connecting to Handleset and cut the mixture pipe of nozzle joint it is characterised in that described cutting in nozzle joint is only provided with
Fire tube, in described mixture pipe, the mixing air infiltration of output is crossed fire-stopping pipe and is delivered to and cuts nozzle assembly, described fire-stopping pipe hollow and two
, there is tiny air gap channel in the tube wall of fire-stopping pipe in end opening, described cut the groove that annular is offered on nozzle joint, described
Fire-stopping pipe is arranged in groove and the wall thickness of fire-stopping pipe is less than the width of groove, described fire-stopping pipe by groove be divided into outer groove and
Inner groove, described outer groove connect with mixture pipe and outer groove with cut nozzle joint sealing, described inner groove is communicated to and cuts nozzle group
Part.
2. a kind of jet absorption type Backfire preventing cutting torch according to claim 1 is it is characterised in that the opening in groove protrudes above one
Circle bayonet socket, one end of fire-stopping pipe is inserted and is limited in groove, and the other end fixes on bayonet socket.
3. a kind of jet absorption type Backfire preventing cutting torch according to claim 1 is it is characterised in that described cutting offers on nozzle joint
Oxygen outlet, mixing pore and installing hole, described groove with oxygen outlet coaxial line and is looped around outside oxygen outlet, described cuts nozzle assembly
On offer venthole along axis, the described nozzle assembly that cuts is arranged on installation in the hole and venthole is communicated to oxygen outlet, described cuts nozzle
Mixed airway is offered, described inner groove and mixed airway are interconnected on assembly.
4. a kind of jet absorption type Backfire preventing cutting torch according to claim 3 is it is characterised in that the described nozzle assembly that cuts includes giving vent to anger
Part and air-guide part, described venthole is opened in gives vent to anger on part, and described part of giving vent to anger includes the connecting portion of taper type, from connecting portion one end
The air guide portion protruded and the extension protruding from the connecting portion other end, described connecting portion pushes against and is sealed on installing hole and air guide
Portion seals to oxygen outlet, forms cushion chamber, described cushion chamber is communicated to inner groove between described air guide portion and installing hole, described leads
Gas part is threaded on part of giving vent to anger and air-guide part and formation mixed airway between part of giving vent to anger, and described connecting portion offers some
Individual gas port, described gas port connection mixed airway and cushion chamber.
5. a kind of jet absorption type Backfire preventing cutting torch according to claim 4 is it is characterised in that described cutting offers on nozzle joint
Threaded portion, is arranged with locking nut giving vent to anger on part, and described locking nut is resisted against on connecting portion and is screw-coupled to threaded portion.
6. a kind of jet absorption type Backfire preventing cutting torch according to claim 1 is it is characterised in that described mixture pipe and handle group
It is also associated with injecting tube between part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629078.XA CN104456563B (en) | 2014-11-10 | 2014-11-10 | Injection type anti-tempering cutting torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629078.XA CN104456563B (en) | 2014-11-10 | 2014-11-10 | Injection type anti-tempering cutting torch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104456563A CN104456563A (en) | 2015-03-25 |
| CN104456563B true CN104456563B (en) | 2017-01-18 |
Family
ID=52903049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410629078.XA Active CN104456563B (en) | 2014-11-10 | 2014-11-10 | Injection type anti-tempering cutting torch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104456563B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203375U (en) * | 1987-06-23 | 1988-05-25 | 沈阳市工业技术开发公司 | Dry type acetylene flashback preventer |
| CN2189026Y (en) * | 1994-01-28 | 1995-02-08 | 常州市焊割工具厂 | Oxygen-hydrogen flame cutting torch |
| CN2267119Y (en) * | 1996-06-20 | 1997-11-12 | 深圳麦基机械有限公司 | Cutting machine using oxygen and gasoline |
| CN2896035Y (en) * | 2006-03-22 | 2007-05-02 | 宁波隆兴焊割科技股份有限公司 | Anti-burst tempering-proof cutting torch |
| MX368276B (en) * | 2012-05-14 | 2019-09-26 | Esab Group Inc | Universal head-mix swirl injector for gas torch. |
| CN202692054U (en) * | 2012-07-04 | 2013-01-23 | 宁波隆兴焊割科技股份有限公司 | Flameout-free efficient temper-resistant cutting torch |
| CN103591582B (en) * | 2013-11-18 | 2015-09-30 | 宁波隆兴焊割科技股份有限公司 | One is penetrated and is inhaled internal-mixing Backfire preventing cutting torch |
| CN204227424U (en) * | 2014-11-10 | 2015-03-25 | 宁波隆兴焊割科技股份有限公司 | A kind of jet absorption type Backfire preventing cutting torch |
-
2014
- 2014-11-10 CN CN201410629078.XA patent/CN104456563B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104456563A (en) | 2015-03-25 |
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