CN203927921U - Ultra-thick billet flame cutting nozzle with oxygen screen - Google Patents
Ultra-thick billet flame cutting nozzle with oxygen screen Download PDFInfo
- Publication number
- CN203927921U CN203927921U CN201420312138.0U CN201420312138U CN203927921U CN 203927921 U CN203927921 U CN 203927921U CN 201420312138 U CN201420312138 U CN 201420312138U CN 203927921 U CN203927921 U CN 203927921U
- Authority
- CN
- China
- Prior art keywords
- oxygen
- duct
- cutting
- combustion gas
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 239000001301 oxygen Substances 0.000 title claims abstract description 119
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 119
- 238000005520 cutting process Methods 0.000 title claims abstract description 99
- 239000000567 combustion gas Substances 0.000 claims abstract description 38
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
Landscapes
- Gas Burners (AREA)
Abstract
The utility model relates to a kind of ultra-thick billet flame cutting nozzle with oxygen screen, and cutting torch head cutting head center is provided with high pressure oxygen duct, is provided with the first combustion gas duct, the first oxygen duct, preheated oxygen duct on cutting torch head; On cutting torch body, be provided with cutting oxygen duct, the second combustion gas duct, the second oxygen duct; Between outer casing inner wall and cutting torch body, there is gap; The first combustion gas duct communicates with the second combustion gas duct; The first oxygen duct communicates with the second oxygen duct; Preheated oxygen duct communicates with gap.While spraying by the second oxygen duct after oxygen enters the first oxygen duct, together with the second combustion gas duct forms with between cutting oxygen duct " oxygen screen ".The utility model has adopted oxygen screen isolation technology; make high pressure cutting oxygen flow in preheat flame, play effective protective effect; oxygen screen also has the effect that improves preheat flame stability and " mowing " cut surface simultaneously; so it is fast that oxygen screen cutting torch has cutting speed concurrently, the multiple advantage such as the large and cutting section of cutting thickness is bright and clean.
Description
Technical field
The utility model is a kind of with oxygen and combustion gas mixing combustion heating billet surface, again with the flame cutting nozzle, particularly a kind of flame cutting nozzle that is applied to iron and steel manufacturing and heavy-duty machinery manufacturing ultra-thick (1.2～1.7 meters) steel billet of high pressure oxygen flow cutting of steel base.
Background technology
In existing flame cutting technique, mixed and common outer mixed cutting torch in generally using, due to structural defect, cutting oxygen flow can be subject to the impact of the various impurity that produce from preheating gas, gas reaction etc., its purity is reduced, thereby affect the quality of thickness and the cutting section of cutting speed, cutting, to ultra-thick steel billet cutting especially difficulty.
Summary of the invention
The utility model, in order to overcome the shortcoming of above-mentioned prior art, provides a kind of ultra-thick billet flame cutting nozzle with oxygen screen.
The technical solution of the utility model is: a kind of ultra-thick billet flame cutting nozzle with oxygen screen, comprise cutting torch head, cutting torch body, overcoat, cutting torch head cutting head center is provided with high pressure oxygen duct, is provided with the first combustion gas duct, the first oxygen duct, preheated oxygen duct on cutting torch head; On cutting torch body, be provided with cutting oxygen duct, the second combustion gas duct, the second oxygen duct; Between outer casing inner wall and cutting torch body, there is gap; The first combustion gas duct communicates with the second combustion gas duct, and preheated oxygen duct communicates with gap; The first oxygen duct communicates with the second oxygen duct; While spraying by the second oxygen duct after oxygen enters the first oxygen duct, together with the second combustion gas duct forms with between cutting oxygen duct " oxygen screen ".
Hyperbaric oxygen duct, the first combustion gas duct, the first oxygen duct, preheated oxygen pore distribution are on cutting torch head 1.
Cutting oxygen duct, the second combustion gas duct, the second oxygen duct are distributed on cutting torch body 2.
The second oxygen duct is between the second combustion gas duct and cutting oxygen duct.
The beneficial effects of the utility model are:
The utility model has adopted oxygen screen isolation technology; make high pressure cutting oxygen flow in preheat flame, play effective protective effect; oxygen screen also has the effect that improves preheat flame stability and " mowing " cut surface simultaneously; so it is fast that oxygen screen cutting torch has cutting speed concurrently, the multiple advantage such as the large and cutting section of cutting thickness is bright and clean.The utility model, due to band aerobic screen, can cut ultra-thick steel billet.
Accompanying drawing explanation
Fig. 1 is structure cutaway view of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the right view of Fig. 1;
Fig. 4 is use structural representation of the present utility model.
The specific embodiment
In conjunction with the following drawings the utility model is further described.
With reference to accompanying drawing 1, to Fig. 3, a kind of ultra-thick billet flame cutting nozzle with oxygen screen, forms cutting head by cutting torch head 1, cutting torch body 2, overcoat 3 three parts.
Cutting torch head 1 cutting head center is provided with high pressure oxygen duct 1.3; On cutting torch head 1, be provided with the first combustion gas duct 1.1, the first oxygen duct 1.2, preheated oxygen duct 1.4; On cutting torch body 2, be provided with cutting oxygen duct 2.2, the second combustion gas duct 2.3, the second oxygen duct 2.1; Between described overcoat 3 inwalls and cutting torch body 2, there is gap 2.4; The first combustion gas duct 1.1 communicates with the second combustion gas duct 2.3; The first oxygen duct 1.2 communicates with the second oxygen duct 2.1; 1.4Yu gap, preheated oxygen duct 2.4 communicates.While spraying by the second oxygen duct 2.1 after oxygen enters the first oxygen duct 1.2, together with the second combustion gas duct 2.3 forms with between cutting oxygen duct 2.2 " oxygen screen ".
As shown in Figure 2, high pressure oxygen duct 1.3, the first combustion gas duct 1.1, the first oxygen duct 1.2, preheated oxygen duct 1.4 are distributed on cutting torch head 1.
As shown in Figure 3,2.2, the second combustion gas ducts 2.3, cutting oxygen duct, the second oxygen duct 2.1 are distributed on cutting torch body 2.The second oxygen duct 2.1 is between the second combustion gas duct 2.3 and cutting oxygen duct 2.2.
Operation principle of the present utility model is, combustion gas sprays by the second combustion gas duct 2.3 after entering the first combustion gas duct 1.1, preheated oxygen enters preheated oxygen duct 1.4 by the rear ejection in gap 2.4 between overcoat 3 inwalls and cutting torch body 2, preheated oxygen and combustion gas mix outward at cutting torch, light after-combustion, the high temperature preheating flame of burning is for heating cut steel billet, another road oxygen sprays by the second oxygen duct 2.1 after entering the first oxygen duct 1.2, barrier together with forming with between cutting oxygen duct 2.2 in the second combustion gas duct 2.3, Here it is special design of the present utility model-" oxygen screen ".
High pressure oxygen enters high pressure oxygen duct 1.3 and passes through the high pressure of cutting oxygen duct 2.2 formation, high flow rate cutting oxygen stream from cutting torch outlet ejection; under the protection of " oxygen screen "; cutting oxygen flow keeps original purity and momentum, thereby completes the work of cutting steel billet.
As shown in Figure 4, during use, cutting torch 1 is arranged on special-purpose burning torch 4, and by burning torch 4 delivering oxygens and combustion gas (natural gas or propane etc.), gas enters cutting torch body 2 and overcoat 3 by cutting torch head 1 respectively, then the passage by different pore size exports oxygen and combustion gas by different proportion ejection cutting torch, and mixed combustion after light in exit, the thermal-flame of mixed combustion is used for heating steel billet, when being heated to uniform temperature, after opening high pressure cutting oxygen, can cut steel billet
The special design of this cutting torch is between combustion gas duct and cutting oxygen duct, to have a circle oxygen aperture, this circle oxygen aperture in use, by the preheat flame of the mixed combustion of outside and the isolation of middle cutting oxygen, played a barrier action, therefore be referred to as " oxygen screen ".The effect of oxygen screen is the interference that protection cutting oxygen is not subject to preheat flame; to guarantee the purity of cutting oxygen; greatly having increased the cutting penetration capacity of oxygen flow and the fineness of cutting speed and cutting section, is a substantial leap to the flame cutting of ultra-thick steel billet.
Claims (4)
1. the ultra-thick billet flame cutting nozzle with oxygen screen, comprise cutting torch head (1), cutting torch body (2), overcoat (3), described cutting torch head (1) cutting head center is provided with high pressure oxygen duct (1.3), is provided with the first combustion gas duct (1.1), the first oxygen duct (1.2), preheated oxygen duct (1.4) on cutting torch head (1); On described cutting torch body (2), be provided with cutting oxygen duct (2.2), the second combustion gas duct (2.3), the second oxygen duct (2.1); Between described overcoat (3) inwall and cutting torch body (2), there is gap (2.4); The first combustion gas duct (1.1) communicates with the second combustion gas duct (2.3); Preheated oxygen duct (1.4) communicates with gap (2.4); It is characterized in that: described the first oxygen duct (1.2) communicates with the second oxygen duct (2.1); While spraying by the second oxygen duct (2.1) after oxygen enters the first oxygen duct (1.2), together with the second combustion gas duct (2.3) forms with between cutting oxygen duct (2.2) " oxygen screen ".
2. the ultra-thick billet flame cutting nozzle with oxygen screen according to claim 1, is characterized in that: described hyperbaric oxygen duct (1.3), the first combustion gas duct (1.1), the first oxygen duct (1.2), preheated oxygen duct (1.4) are distributed on respectively on cutting torch head (1).
3. the ultra-thick billet flame cutting nozzle with oxygen screen according to claim 1, is characterized in that: described cutting oxygen duct (2.2), the second combustion gas duct (2.3), the second oxygen duct (2.1) are distributed on respectively on cutting torch body (2).
4. the ultra-thick billet flame cutting nozzle with oxygen screen according to claim 1, is characterized in that: described the second oxygen duct (2.1) is positioned between the second combustion gas duct (2.3) and cutting oxygen duct (2.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312138.0U CN203927921U (en) | 2014-06-12 | 2014-06-12 | Ultra-thick billet flame cutting nozzle with oxygen screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312138.0U CN203927921U (en) | 2014-06-12 | 2014-06-12 | Ultra-thick billet flame cutting nozzle with oxygen screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203927921U true CN203927921U (en) | 2014-11-05 |
Family
ID=51823726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420312138.0U Expired - Lifetime CN203927921U (en) | 2014-06-12 | 2014-06-12 | Ultra-thick billet flame cutting nozzle with oxygen screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203927921U (en) |
-
2014
- 2014-06-12 CN CN201420312138.0U patent/CN203927921U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104180397B (en) | It is pre-mixed nozzle on duty | |
| CN204786417U (en) | Urceolus and low NOx gas combustion ware of gas combustion ware | |
| CN201715513U (en) | Inferior high velocity burner | |
| CN203927921U (en) | Ultra-thick billet flame cutting nozzle with oxygen screen | |
| CN204756933U (en) | Gas spray gun that combustor multitube is adjustable | |
| GB223978A (en) | An improved method and nozzle for atomising wire shaped materials | |
| CN207455590U (en) | It is a kind of go out fire stablize oxyfuel gas welding torch | |
| CN203489271U (en) | Gas lance for high temperature on-line sterilizer | |
| CN205825030U (en) | A kind of bocca of fly-cutting | |
| CN203517794U (en) | Ultra low pressure gas burner | |
| CN201636870U (en) | Billet flame cutting nozzle | |
| CN204308152U (en) | The novel level and smooth burner of continuous casting billet flame descaling machine | |
| CN203417422U (en) | Water mist spray head with large spray range | |
| CN204100242U (en) | Ceramic kiln premixing type combustion energy-saving spray gun | |
| CN202786431U (en) | Inner-cooling nozzle for laser cladding | |
| CN207606258U (en) | A kind of acceleration loop device for internal-mixing nozzle for atomizing water with air efficient over long distances | |
| WO2014079179A1 (en) | Cutting torch for cutting ultrahigh-thickness 2000-3500 mm low-carbon and low-alloy steel ingot and cutting process of the cutting torch | |
| CN202786429U (en) | Integrated coaxial nozzle for laser cladding | |
| US2365308A (en) | Method for scarfing | |
| CN201875721U (en) | Cutting head and cutting device with same | |
| CN205690397U (en) | A kind of quick cutting-off nozzle of continuous casting steel | |
| CN202779670U (en) | Improved flame cutting gun nozzle | |
| CN204730198U (en) | A kind of telescopic pair of water conservancy diversion burner | |
| CN204329013U (en) | A kind of twice air-intaking gas combustor | |
| CN203900490U (en) | Double-ring supersonic atomizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |
|
| CX01 | Expiry of patent term |