CN201476018U - High-speed flame cutting nozzle - Google Patents
High-speed flame cutting nozzle Download PDFInfo
- Publication number
- CN201476018U CN201476018U CN2009201732586U CN200920173258U CN201476018U CN 201476018 U CN201476018 U CN 201476018U CN 2009201732586 U CN2009201732586 U CN 2009201732586U CN 200920173258 U CN200920173258 U CN 200920173258U CN 201476018 U CN201476018 U CN 201476018U
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- China
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- transition
- collapsible tube
- flame cutting
- speed flame
- cutting torch
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- 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 - Fee Related
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Abstract
The utility model provides a high-speed flame cutting nozzle which comprises an outer sleeve and an inner core, wherein the inner core is a high-pressure oxygen channel, and a stainless steel liner pipe is arranged in the high-pressure oxygen channel; one end of the stainless steel liner pipe extends to a gas flow outlet of the high-pressure oxygen channel and is leveled therewith, the other end thereof is a diffusion port with gradually increased diameter, and the outer edge of the diffusion port is in contact with the inner side wall of the outer sleeve; and a bus of the diffusion port is a circular arc line. The high-speed flame cutting nozzle is provided with the stainless steel pipe with the diffusion port in the high-pressure oxygen channel, and the diffusion port adopts the circular arc transition, thereby improving the speed of high pressure oxygen and avoiding turbulent flow; furthermore, the high-speed flame cutting nozzle can prevent the high-speed flame cutting nozzle from escaping during erosion of the high-temperature and high-pressure gas through the shape and the assembly way of the stainless steel liner pipe, thereby having significant functions in the aspects of ensuring the normal work of the high-speed cutting nozzle and prolonging the service life of the cutting nozzle.
Description
Technical field
The utility model relates to gas cutting field, particularly a kind of high-speed flame cutting torch.
Background technology
Cut in the employed cutting torch at gas, cutting torch is one of critical piece of cutting torch.Cutting torch generally includes an overcoat and inner core, and inner core is the hyperbaric oxygen passage, and has a plurality of blast tubes on the coat, has the medium pore that the high pressure oxygen channel links to each other at the front end face of cutting torch, has some blast tube slotted eyes around medium pore.During cutting, at first combustion gas is derived slotted eye by combustion gas and draw and light, be cut the preheating of workpiece, treat that drawing hyperbaric oxygen (or cutting oxygen) by medium pore when workpiece reaches cutting temperature carries out cutting operation.In whole cutting process, the speed of hyperbaric oxygen has fundamental influence for the speed of cutting operation.
The high pressure oxygen channel of present employed cutting torch, just such as the sharp company of victory, its cutting torch adopts once and shrinks, and adopts the right angle transition, and stainless steel inner lining tube is filled wherein, and and there is the distance of about 1-3mm at the mistake ferry, and the cross section of interior cover is exposed to high pressure oxygen channel inboard, and such structure is after feeding hyperbaric oxygen, and gas is after shrinking the ferry, directly rush in the stainless steel and overlap, because gas velocity is very fast, impact is bigger, causes coming off of overlapping in the stainless steel easily.In addition, the interior cover cross section that is exposed to high pressure oxygen channel inboard is easy to generate turbulent flow, is unfavorable for the speed-raising of gas.The cutting torch that the Xiao Chi company of Japan produces has adopted the secondary collapsible tube, same transition is not a rounding off, and stainless steel inner lining tube carries out inserting after the reaming, with the distance of shrinking the nearly 5-6mm of transition for the second time, this structure is not only complicated, and existing stainless steel tube equally can be impacted, and air-flow is smooth inadequately, can produce the phenomenon of turbulent flow, certain influence be arranged for speed-raising.
The utility model content
For fear of the problems referred to above, the utility model provides a kind of high-speed flame cutting torch, can improve cutting oxygen passage rate, and prolongs the service life of cutting torch.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of high-speed flame cutting torch comprises overcoat and inner core, wherein,
Described inner core is the hyperbaric oxygen passage, and described hyperbaric oxygen passage is the contraction tubulose,
Has an internal lining pipe in the described hyperbaric oxygen passage, one end of described internal lining pipe extends hyperbaric oxygen passage air stream outlet and concordant with it, an other end of internal lining pipe is the diffusing opening that diameter increases gradually, and the large diameter outer of described diffusing opening contacts with the madial wall of overcoat;
The bus of described diffusing opening is a circular arc line.
Preferably, described hyperbaric oxygen passage comprises the two-stage collapsible tube, the collapsible tube of contiguous hyperbaric oxygen passage air stream outlet is a second level collapsible tube, and the collapsible tube of contiguous hyperbaric oxygen passage air flow inlet is a first order collapsible tube, and second level collapsible tube is connected with first order collapsible tube.
Preferably, first order collapsible tube is to shrink transition by major diameter to the transition portion of minor diameter, and this contraction transition is the right angle transition.
Preferably, first order collapsible tube is to shrink transition by major diameter to the transition portion of minor diameter, and this contraction transition is a rounding off.
Preferably, second level collapsible tube is to shrink transition by major diameter to the transition portion of minor diameter, and this contraction transition is the right angle transition.
Preferably, second level collapsible tube is to shrink transition by major diameter to the transition portion of minor diameter, and this contraction transition is a rounding off.
Preferably, the described internal lining pipe that has diffusing opening is made by stainless steel.
Preferably, the angle of contingence of described diffusing opening bus is 10 ° to 80 °, and the shape of its bus can epirelief, also can be recessed.
Substantive distinguishing features and obvious improvement that the technical solution of the utility model is outstanding are embodied in:
High-speed flame cutting torch of the present utility model is by being provided with the stainless steel inner lining tube of diffusing opening in the hyperbaric oxygen passage, and diffusing opening adopts rounding off, can improve the speed of cutting oxygen, can not produce turbulent flow; And shape and assembling mode by stainless steel inner lining tube, can prevent that it from washing away middle disengaging at high temperature and high pressure gas, for very big effect is arranged in the operate as normal of guaranteeing high-speed cutting nozzle, service life of prolonging cutting torch.This cutting torch is in process, and stainless steel inner lining tube adopts and processes installation from top to bottom, and simplicity of design is easily implemented, and is a flame cutting nozzle that can realize high-speed cutting.
Description of drawings
Fig. 1 is the cutaway view of high-speed flame cutting torch of the present utility model.
The specific embodiment
The purpose of this utility model is to provide a kind of high-speed flame cutting torch, can improve the oxygen passage rate and prolong service life of cutting torch.
For making the purpose of this utility model, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Fig. 1 is the cutaway view of high-speed flame cutting torch of the present utility model.The high-speed flame cutting torch comprises overcoat 100 and inner core, and inner core is a hyperbaric oxygen path 10 1.
Hyperbaric oxygen path 10 1 is for shrinking tubulose, its inside has an internal lining pipe 201, one end of internal lining pipe 201 extends the air stream outlet 102 of hyperbaric oxygen path 10 1 and concordant with air stream outlet 102, an other end of internal lining pipe 201 is the diffusing opening 202 that diameter increases gradually, the bus of diffusing opening 202 is a circular arc line, and diffusing opening 202 large diameter outers contact with the madial wall of overcoat 100.
When assembling internal lining pipe 201, can be in hyperbaric oxygen path 10 1, along internal lining pipe 201 being installed in as shown in Figure 1 position towards the direction of the air stream outlet 102 of hyperbaric oxygen path 10 1, make an end of internal lining pipe 201 extend and air stream outlet 102 and concordant with it, diffusing opening 202 large diameter outers contact with the madial wall of overcoat 100.
Preferably, the bus of diffusing opening 202 can be epirelief or recessed circular arc, and the angle of contingence of this circular arc can be 10 ° to 80 °.
When the position that internal lining pipe 201 is installed in as shown in Figure 1, diffusing opening 202 large diameter outers contact with the madial wall of overcoat 100.Then internal lining pipe 201 is in hyperbaric oxygen path 10 1, form a contraction tubular structure with the madial wall of overcoat 100.
After high pressure oxygen feeds hyperbaric oxygen path 10 1 along as shown in Figure 1 the direction of arrow, the contraction of the contraction tubular structure that forms with the madial wall of overcoat 100 through internal lining pipe 201, its speed obtains fast lifting.Because the bus of diffusing opening 202 is a circular arc, promptly this collapsible tube adopts rounding off, therefore high pressure oxygen can not cause speed to descend owing to the bump tube wall cause turbulent flow, but along the madial wall of the overcoat 100 of rounding off, flow towards the air stream outlet 102 of hyperbaric oxygen path 10 1.
In addition, because being arranged in the internal lining pipe 201 of hyperbaric oxygen path 10 1 is the collapsible tube with diffusing opening of rounding off, and be in hyperbaric oxygen path 10 1 along assembling by air flow inlet 103 to the direction of air stream outlet 102 of hyperbaric oxygen path 10 1, therefore, internal lining pipe 201 can not skid off hyperbaric oxygen path 10 1 and cause the phenomenon of disengaging under the washing away of HTHP oxygen.This has very big effect service life of prolongation cutting torch for the operate as normal of guaranteeing high-speed cutting nozzle.
In a preferred embodiment of the present utility model, hyperbaric oxygen path 10 1 can be the secondary collapsible tube.Promptly as shown in Figure 1, hyperbaric oxygen path 10 1 also comprises other one-level contraction tubular structure at an end that is close to hyperbaric oxygen path 10 1 air flow inlet 103 except having the tubular structure of contraction at an end that is close to hyperbaric oxygen path 10 1 air stream outlet 102.
Wherein, an end of contiguous hyperbaric oxygen path 10 1 air flow inlet 103 is a first order collapsible tube 211, and an end of contiguous hyperbaric oxygen path 10 1 air stream outlet 102 is a second level collapsible tube 212, and internal lining pipe 201 is installed in the second level collapsible tube 212.First order collapsible tube 211 is connected with second level collapsible tube 212.
Wherein, first order collapsible tube 211 is to shrink transition by major diameter to the transition portion of minor diameter, and this contraction transition can be the right angle transition, also can be rounding off.Preferably, the contraction transition of first order collapsible tube 211 should be rounding off.
In addition, second level collapsible tube 212 is to shrink transition by major diameter to the transition portion of minor diameter, and this contraction transition can be the right angle transition, also can be rounding off.
When hyperbaric oxygen path 10 1 is the secondary collapsible tube, the high pressure oxygen that feeds passes through first order collapsible tube 211 and second level collapsible tube 212 in proper order along the direction of arrow as shown in Figure 1, produce twice acceleration,, thereby improve cutting speed with further raising oxygen passage rate.
Preferably, internal lining pipe 201 is made by stainless steel.
Generally, hyperbaric oxygen path 10 1 is made by copper or copper alloy, and the internal lining pipe 201 that is installed in the hyperbaric oxygen path 10 1 is then made by stainless steel.High temperature resistant, the high-voltage performance of stainless internal lining pipe 201 all is better than the hyperbaric oxygen path 10 1 made by copper or copper alloy.Therefore, in hyperbaric oxygen path 10 1, install stainless steel inner lining tube 201, can prolong the service life of cutting torch effectively.
High-speed flame cutting torch of the present utility model can promote the feeding speed of oxygen rapidly by be provided with the stainless steel inner lining tube of diffusing opening in the hyperbaric oxygen passage, and adopts the mode of rounding off, can not produce turbulent flow.By changing the shape and the assembling mode of stainless steel inner lining tube, can prevent that internal lining pipe from washing away middle disengaging at high temperature and high pressure gas, for all having very big effect in the operate as normal of guaranteeing high-speed cutting nozzle, service life of prolonging cutting torch.
This cutting torch is in process, and stainless steel inner lining tube adopts and processes installation from top to bottom, and simplicity of design is easily implemented, and is a flame cutting nozzle that can realize high-speed cutting.
The above, it is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, to any simple modification, equivalent variations and modification that above embodiment did, all still belong to the scope of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (8)
1. a high-speed flame cutting torch comprises overcoat and inner core, wherein,
Described inner core is the hyperbaric oxygen passage, and described hyperbaric oxygen passage is to shrink tubulose, it is characterized in that,
Has an internal lining pipe in the described hyperbaric oxygen passage, one end of described internal lining pipe extends hyperbaric oxygen passage air stream outlet and concordant with it, an other end of internal lining pipe is the diffusing opening that diameter increases gradually, and the large diameter outer of described diffusing opening contacts with the madial wall of overcoat;
The bus of described diffusing opening is a circular arc line.
2. high-speed flame cutting torch as claimed in claim 1, it is characterized in that, described hyperbaric oxygen passage comprises the two-stage collapsible tube, the collapsible tube of contiguous hyperbaric oxygen passage air stream outlet is a second level collapsible tube, the collapsible tube of contiguous hyperbaric oxygen passage air flow inlet is a first order collapsible tube, and second level collapsible tube is connected with first order collapsible tube.
3. high-speed flame cutting torch as claimed in claim 2 is characterized in that, first order collapsible tube is to shrink transition by major diameter to the transition portion of minor diameter, and this contraction transition is the right angle transition.
4. high-speed flame cutting torch as claimed in claim 2 is characterized in that, first order collapsible tube is to shrink transition by major diameter to the transition portion of minor diameter, and this contraction transition is a rounding off.
5. high-speed flame cutting torch as claimed in claim 2 is characterized in that, second level collapsible tube is to shrink transition by major diameter to the transition portion of minor diameter, and this contraction transition is the right angle transition.
6. high-speed flame cutting torch as claimed in claim 2 is characterized in that, second level collapsible tube is to shrink transition by major diameter to the transition portion of minor diameter, and this contraction transition is a rounding off.
7. as the described high-speed flame cutting torch of arbitrary claim in the claim 1 to 6, it is characterized in that the described internal lining pipe that has diffusing opening is made by stainless steel.
8. as the described high-speed flame cutting torch of arbitrary claim in the claim 1 to 6, it is characterized in that the angle of contingence of described internal lining pipe diffusing opening bus is 10 ° to 80 °, the shape of its bus can epirelief, also can be recessed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201732586U CN201476018U (en) | 2009-08-25 | 2009-08-25 | High-speed flame cutting nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201732586U CN201476018U (en) | 2009-08-25 | 2009-08-25 | High-speed flame cutting nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201476018U true CN201476018U (en) | 2010-05-19 |
Family
ID=42412270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201732586U Expired - Fee Related CN201476018U (en) | 2009-08-25 | 2009-08-25 | High-speed flame cutting nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201476018U (en) |
-
2009
- 2009-08-25 CN CN2009201732586U patent/CN201476018U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ABOVE ALLOY MATERIAL TECHNOLOGY (BEIJING) CO., LTD Free format text: FORMER OWNER: BEIJING ADVANCED MATERIALS CO., LTD. Effective date: 20120604 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 HAIDIAN, BEIJING TO: 100000 HAIDIAN, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120604 Address after: 100000 Beijing City, Haidian District Xueyuan Road District No. 30 Fangxing ten storey building room 1011 Patentee after: Aomei Alloy Material Technology (Beijing) Co., Ltd. Address before: 100083 Beijing Haidian District Suzhou Street No. 18 long term world B2-507 Patentee before: Beijing Advanced Materials Co., Ltd. |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Aomei Alloy Material Technology (Beijing) Co., Ltd. Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20180825 |