AU734175B2 - Atomizer for gasoline-oxygen cutting and welding and cutting torch provided with the same - Google Patents
Atomizer for gasoline-oxygen cutting and welding and cutting torch provided with the same Download PDFInfo
- Publication number
- AU734175B2 AU734175B2 AU77558/98A AU7755898A AU734175B2 AU 734175 B2 AU734175 B2 AU 734175B2 AU 77558/98 A AU77558/98 A AU 77558/98A AU 7755898 A AU7755898 A AU 7755898A AU 734175 B2 AU734175 B2 AU 734175B2
- Authority
- AU
- Australia
- Prior art keywords
- tube
- oxygen
- gasoline
- fine
- cutting
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
- F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
- F23D11/102—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
- Gas Burners (AREA)
- Spray-Type Burners (AREA)
Description
'I
ATOMIZER FOR GASOLINE-OXYGEN CUTTING AND WELDING AND CUTTING.TORCH PROVIDED-WITH THE SAME Field of the invention The present invention relates to atomizer for gasoline-oxygen cutting and welding, and cutting torch provided with the same, and it belongs to the field of mechanical working.
Background of the invention At present, the gasoline-oxygen cutting machine invented by the inventor can cut steel material having a thickness of 300mm, or form through holes on steel plates having a thickness of 80mm. Said cutting machine consists of a cutting nozzle, a special isobaric cutting torch, and a pressure-stabilized liquid supply tank, etc. (see ZL No. 922257310, ZL No. 922448523, ZL No. 942474872). The shortcoming of the cutting machine according to said patents is that because the atomization of gasoline is done in the cutting nozzle, having narrow atomization space and mixing space, the atomization is poor, that is, in the flame, there are sparks formed by small gasoline drops when the gasoline supply is increased for cutting thick plates. Furthermore, the connection between cutting nozzle and the cutting torch connector on the cutting torch is realized by three 30 degree conical planes in coordination wherein some conical planes often have poor contact during operation, therefore cross flow of gas and cross flow of gasoline are formed, making the working condition poorer and the flame not strong and firm enough.
2 The object of the invention is to provide an atomizer for gasoline-oxygen cutting and welding and the cutting torch provided with the same, wherein the energy of oxygen is used for atomizing gasoline, and the atomizer is fixed in the cutting torch head or preheat oxygen tube so as to improve the level of gasoline atomization, obtaining an ideal flame with sufficient burning and good flame concentration as well as easiness of regulation.
The atomizer for gasoline-oxygen cutting and welding according to the invention includes a body of the atomizer, a gasoline inlet, a preheated oxygen inlet, a gasoline fine-tube, a preheated oxygen fine-tube, said preheated oxygen fine-tube being communicated with the preheat oxygen inlet, said preheated oxygen fine-tube having a diameter of 0.5-2.5mm, said gasoline fine-tube having one end communicated gasoline inlet and another end communicated with said preheated oxygen fine-tube, said gasoline fine-tube entering said preheated oxygen fine-tube at a distance H of 0.5-3mm from the end surface of the atomizer, and the diameter of said gasoline fine-tube being 0.5-0.8mm.
In order to achieve sufficient atomization, the outlet of preheat oxygen finetube might be designed to have a shape of conical plane, the angle of the conical plane a 15-60 degree, and the outlet of the gasoline fine-tube being located on the conical plane at the outlet of the preheated oxygen fine-tube.
20 The present invention further provides a gasoline-oxygen cutting torch to be used in coordination with the gasoline-oxygen cutting welding atomizer; the torch includes a gasoline supply tube, an oxygen supply tube, a body of the cutting torch, a cutting oxygen tube, a preheated oxygen tube, a cutting nozzle, and a connector of the cutting nozzle, said gasoline supply tube and said oxygen 25 supply tube being communicated with the connector of the cutting torch through the body of the cutting torch, while the cutting nozzle being screwed on the connector of the cutting nozzle, wherein said cutting torch further includes an atomizer for gasoline-oxygen cutting and welding located in said connector of the cutting nozzle, said atomizer including a gasoline inlet, a gasoline fine-tube, a preheated oxygen inlet, a preheated oxygen fine-tube, said preheated oxygen inlet being communicated with the preheated oxygen tube, said preheated oxygen fine-tube having one end communicated with said preheated oxygen inlet, and another end communicated with the cavity of the head part of the cutting nozzle, said gasoline inlet being communicated with said body of the cutting torch, one end of said gasoline fine-tube being communicated with said gasoline inlet, and another end entering said preheated oxygen fine-tube at a distance of 0.5-3mm from the end surface of the atomizer, said gasoline fine-tube having a diameter of 0.5-0.8mm, said preheated oxygen fine-tube having a diameter of 0.5-2.5mm.
The invention further provides a gasoline-oxygen cutting torch including a gasoline supply tube, an oxygen supply tube, a body of the cutting torch, a cutting oxygen tube, a preheated oxygen tube, a cutting nozzle and a connector of the cutting nozzle, said gasoline supply tube and the oxygen gas tube being communicated with the connector of the cutting nozzle through the body of the cutting torch, while the cutting nozzle being screwed onto the connector of the cutting nozzle, wherein said cutting torch further includes an atomizer for gasoline-oxygen cutting and welding located in the preheated oxygen tube, said atomizer includes a gasoline inlet, a gasoline fine-tube, a preheated oxygen inlet, a preheated oxygen fine-tube, said preheated oxygen inlet being communicated with the preheated oxygen tube, said preheated oxygen fine-tube having one end communicated with the preheated oxygen inlet, and another end communicated S 20 with the cavity of the head part of the cutting nozzle, said gasoline inlet being communicated with the body of the cutting torch, one end of the gasoline finetube being communicated with said gasoline inlet, and another end entering said preheated oxygen fine-tube at a distance of 0.5-3mm from the end surface of the atomizer, said gasoline fine-tube having a diameter of 0.5-0.8mm, said preheated :25 oxygen fine-tube having a diameter of 0.5-2.5mm.
The invention further provides a gasoline oxygen cutting torch used for S semi-automatic cutting machines, an oxygen gas supply tube, a cutting oxygen tube, a preheated oxygen tube, a cutting nozzle, a connector of the cutting nozzle, said oxygen gas supply tube and said preheat oxygen tube, as well as the cutting oxygen tube being respectively communicated with the connector of the cutting nozzle, said cutting nozzle being screwed on the connector of the cutting 4 nozzle, wherein said cutting torch further includes an atomizer for gasolineoxygen cutting and welding located in the connecting point of said preheated oxygen tube and said connector of the cutting nozzle, said atomizer including a gasoline inlet, a gasoline fine-tube, a preheated oxygen inlet, and a preheated oxygen fine-tube, said preheated oxygen inlet being communicated with said oxygen gas supply tube, said preheated oxygen fine-tube having one end communicated with the preheat oxygen inlet, and another end communicated with cavity of the head part of the cutting nozzle, said gasoline inlet being communicated with the oxygen gas supply tube, while one end entering the preheated oxygen fine-tube at a distance of 0.5-3mm from the end surface of the atomizer, said *o .ee oooeo SgS
S.
gasoline fine-tube having a diameter of 0.5-0.8mm, and said preheated oxygen fine-tube having a diameter of 0.5-2.5mm.
The atomizer according to the invention could-utilize the energy of oxygen to atomize the gasoline sufficiently and mix the atomized gasoline with the oxygen sufficiently to obtain an ideal flame. Fixing the atomizer in the head part of the cutting torch or the preheat oxygen tube will greatly raise the level of the gasoline atomization so as to obtaine an ideal flame with sufficient combustion, good flame concentration and easy flame regulation.
t.:I Brief description of the Drawings The invention will-be described in details with reference to the embodiments and the attached drawings, wherein: Fig. 1 is a schematic view of the structure of the atomizer for gasoline-oxygen cutting and welding according to the invention; Fig.2 is an embodiment of the atomizer shown in Fig.I; Fig. 3 is a schematic view of the structure of the gasoline-oxygen cutting torch provided with the atomizer; and Figs. 4 and 5 are schematic views of the structure of the cutting torches according to other two structural forms.
Description of the preferred Embodiments of the Invention In Figures 1 and 2, reference mnumeral 1 denotes a body of the atomizer; 2 denotes a gasoline inlet; 3 denotes a preheated oxygen inlet; 4 denotes a preheated oxygen fine-tube (or fine-tube for supplying preheated oxygen); and 5 denotes a gasoline fine-bube (or fine-tube for supplying gasoline). The working principle of the atomizer shown in the figures is that: when the preheated oxygen is supplied from the inlet 3 into the fine tube 4, it disperses the gasoline sent through the gasoline fine-tube 5 into a very fine fog and then the latter will enter the cutting nozzle, and spray from the tail of the cutting nozzle for ignition and operation. In this process, oxygen and atomized gasoline are sufficiently mixed, and this is the main reason why an ideal flame can be obtained. In the atomizer, the diameter of the preheated oxygen fine-tube 4 is the diameter of gasoline fine-tube 5 is 0.5-0.8 mm; and the distance H between the position, where fine tube 5 enters fine tube 4, and the end surface of the atomizer equals 0.5-3mm. In one embodiment of the invention, the diameter of preheated oxygen fine-tube is lmm; the diameter of fine gasoline tube is 0.5mm; and H=lmm.
The outlet 6 of the preheated oxygen fine-tube may be a conical plane with an angle a =30-90 degree. The outlet of the gasoline finetube 5 is just located on the conical plane. Therefore, a negative pressure caused by a high-speed oxygen flow may enable the gasoline supply system to supply the gasoline well. In one embodiment of the invention, the angle a is 45 degree, as shown in Fig. 2.
Figures 3-5 are schematic views of the structural for gasolineoxygen cutting torch provided with the atomizer according to the invention. In Figures 3-5, reference numeral 7 denotes a gasoline supply tube; 8-a oxygen supply tube; 9-a gasoline fine-adjustment valve; body of the cutting torch; 11-a cutting oxygen tube; 12-a connector of the cutting nozzle 13-a cutting nozzle; 14, 15-a preheated oxygen valve and a cutting oxygen valve, located on the -body of the cutting torch; 16 -a preheated oxygen tube.
As shown in Fig. 3, the atomizer is located in the connector 12 of the cutting nozzle 13; the gasoline inlet 2 is located in the gasoline supply tube and is connected to the body of the cutting torch. The preheated oxygen inlet 3 is connected to the body 10 of the cutting torch; The preheated oxygen fine-tube 4 is communicated with the cavity of the head of the cutting nozzle 13. In the present embodiment of the cutting torch, the diaineter of preheated oxygen fine-tube 4 is 1 mm; the diameter of gasoline fine-tube 5 is 0.6mm; and the gasoline fine tube 5 enters the preheated oxygen fine tube 14 at a distance of 1 mm from the end surface of the atomizer.
As shown in Fig. 4, the atomizer 1 is located in the preheated oxygen tube; the gasoline inlet of the atomizer 2 is communicated with the gasoline supply tube in the body 10 of the cutting torch. The preheated oxygen inlet 3 is connected to the body 10 of the cutting torch; and the preheated oxygen fine-tube 4 is comunicated with the cutting nozzle 13 through the preheated oxygen tube 16. In the present embodiment of the cutting torch, the diameter of preheat oxygen fine tube 4 is 1mm; the diameter of gasoline fine tube 5 is 0.6mm; and the gasoline fine-tube 5 enters the preheat oxygen fine tube 14 at a distance of 1mm from the end surface of the atomizer.
indicates a cutting torch for semi-automatic cutting welding machine. As shown in Fig. 5, the atomizer 1 is located at the connecting A point of the preheated oxygen -tube 16 and the connector of the cutting w nozzle. The preheated oxygen inlet 3 of the atomizer is communicated with the preheated oxygen tube 16, and the gasoline inlet 2 is comunicated with the oxygen gas supply tube 7; the preheated oxygen fine-tube.4 .is communicated with cavity at the head part of the cutting nozzle 13. In the present embodiment of the cutting torch, the diameter of preheated oxygen fine tube 4 is 1.5mm; the diameter of the gasoline fine-tube 5 is 0.7mm. The gasoline fine-tube 5 enters the preheated oxygen fine-tube at a distance of 1.5mm from the end surface of the atomizer Industrial Applications The present invention could be used for cutting parts and materials, such as steel plate etc., so as to lower the cost and improve the quality for cutting.
Claims (3)
1. An atomizer for gasoline-oxygen cutting and welding, wherein said atomizer includes a body of the atomizer, a gasoline inlet, a preheated oxygen inlet, a gasoline fine-tube, a preheated oxygen fine-tube, said preheated oxygen fine-tube being communicated with the preheat oxygen inlet, said preheated oxygen fine-tube having a diameter of 0.5-2.5mm, said gasoline fine-tube having one end communicated with the gasoline inlet and another end communicated with said preheated oxygen fine-tube, said gasoline fine-tube entering said preheated oxygen fine-tube at a distance H of 0.5-3mm from the end surface of the atomizer, and the diameter of said gasoline fine-tube being 0.5-0.8mm.
2. The atomizer as cited in claim 1, wherein the outlet of the preheated oxygen fine-tube has a shape of conical plane, the angle of said conical plane a
15-60 degree, and the outlet of said gasoline fine-tube being located on the conical plane at the outlet of said preheated oxygen fine-tube. 3. A gasoline-oxygen cutting torch including a gasoline supply tube, an oxygen supply tube, a body of the cutting torch, a cutting oxygen tube a preheated oxygen tube, a cutting nozzle, and a connector of the cutting nozzle, said gasoline supply tube and said oxygen supply tube being communicated with the connector of the cutting nozzle through the body of the cutting torch, while the cutting nozzle being screwed on the connector of the cutting nozzle, wherein said cutting torch further includes an atomizer for gasoline-oxygen cutting and welding located in said connector of the cutting nozzle, said atomizer including a gasoline inlet, a gasoline fine-tube, a preheated oxygen inlet, a preheated oxygen fine- tube, said preheated oxygen inlet being communicated with the preheat oxygen tube, said preheated oxygen fine-tube having one end communicated with said preheated oxygen inlet, and another end communicated with the cavity of the head part of the cutting nozzle, said gasoline inlet being communicated with said ody of the cutting torch, one end of said gasoline fine-tube being communicated with said gasoline inlet, and another end entering said preheated oxygen fine- tube at a distance of 0.5-3mm from the end surface of the atomizer, said gasoline fine-tube having a diameter of 0.5-0.8mm, said preheated oxygen fine-tube having a diameter of 0.5-2.5mm. 4. A gasoline-oxygen cutting torch including a gasoline supply tube, an oxygen supply tube, a body of the cutting torch, a cutting oxygen tube, a preheated oxygen tube, a cutting nozzle and a connector of the cutting nozzle, said gasoline supply tube and the oxygen gas tube being communicated with the connector of the cutting nozzle through the body of the cutting torch, while the cutting nozzle being screwed onto the connector of the cutting nozzle, wherein said cutting torch further includes an atomizer for gasoline-oxygen cutting and welding located in the preheated oxygen tube, said atomizer includes a gasoline inlet, a gasoline fine-tube, a preheated oxygen inlet, a preheated oxygen fine- tube, said preheated oxygen inlet being communicated with the preheated oxygen tube, said preheated oxygen fine-tube having one end communicated with the preheated oxygen inlet, and another end communicated with the cavity of the S" head part of the cutting nozzle, said gasoline inlet being communicated with the body of the cutting torch, one end of the gasoline fine-tube being communicated :•°with said gasoline inlet, and another end entering said preheated oxygen fine- tube at a distance of 0.5-3mm from the end surface of the atomizer, said gasoline fine-tube having a diameter of 0.5-0.8mm, said preheated oxygen fine-tube having a diameter of 0.5-2.5mm. V o.o 5. A gasoline-oxygen cutting torch including an oxygen gas supply tube, a cutting oxygen tube, a preheated oxygen tube, a cutting nozzle, a connector of S. the cutting nozzle, said oxygen gas supply tube and said preheat oxygen tube, as well as the cutting oxygen tube being respectively communicated with the connector of the cutting nozzle, said cutting nozzle being screwed on the connector of the cutting nozzle, wherein said cutting torch further includes an atomizer for gasoline-oxygen cutting and welding located in the connecting point 11 of said preheated oxygen tube and said connector of the cutting nozzle, said atomizer including a gasoline inlet, a gasoline fine-tube, a preheated oxygen inlet, and a preheated oxygen fine-tube, said preheated oxygen inlet being communicated with said oxygen gas supply tube, said preheated oxygen fine- tube having one end communicated with the preheat oxygen inlet, and another end communicated with cavity of the head part of the cutting nozzle, said gasoline inlet being communicated with the oxygen gas supply tube, while one end entering the preheated oxygen fine-tube at a distance of 0.5-3mm from the end surface of the atomizer, said gasoline fine-tube having a diameter of 0.5-0.8mm, and said preheated oxygen fine-tube having a diameter of 0.5-2.5mm. DATED this 20 th day of March 2001 LANG GUANGQI WATERMARK PATENT TRADEMARK ATTORNEYS S4TH FLOOR DURACK CENTRE 263 ADELAIDE TERRACE PERTH WA 6000 .ee *ee *ee *ee~
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97250604 | 1997-08-12 | ||
| CN97250604U CN2300471Y (en) | 1997-08-12 | 1997-08-12 | Gasoline oxygen cutting and welding atomizer |
| PCT/CN1998/000097 WO1999009353A1 (en) | 1997-08-12 | 1998-06-11 | A petrol-oxygen cutting and welding atomizer and a torch with the atomizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU7755898A AU7755898A (en) | 1999-03-08 |
| AU734175B2 true AU734175B2 (en) | 2001-06-07 |
Family
ID=5215240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU77558/98A Ceased AU734175B2 (en) | 1997-08-12 | 1998-06-11 | Atomizer for gasoline-oxygen cutting and welding and cutting torch provided with the same |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1013989A4 (en) |
| JP (1) | JP2002540372A (en) |
| CN (1) | CN2300471Y (en) |
| AU (1) | AU734175B2 (en) |
| WO (1) | WO1999009353A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2449853Y (en) * | 2000-11-13 | 2001-09-26 | 梁光启 | Injection atomizer for gasoline-oxygen cutting and welding |
| JP2006329458A (en) * | 2005-05-23 | 2006-12-07 | Yutani Kogyo Kk | Gasoline fusing cutter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2430511A (en) * | 1943-07-07 | 1947-11-11 | Air Reduction | Mixing arrangement for torches |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3643871A (en) * | 1970-01-30 | 1972-02-22 | Tescom Corp | Torch apparatus |
| CN2030693U (en) * | 1987-04-30 | 1989-01-11 | 重庆焊割工具厂 | Isobaric cutting torch for multiple combustion gases |
| DE4239903C1 (en) * | 1992-11-27 | 1994-06-30 | Franz Kuenzli Ag Wangen | Injector mouthpiece for burner units |
| CN2143719Y (en) * | 1992-12-28 | 1993-10-13 | 梁光启 | Isopiestic torch special for gasoline oxygen cutting machine |
| CN2168172Y (en) * | 1993-09-30 | 1994-06-08 | 梁光启 | Gasoline-oxygen cutting nozzle with preburning cap |
-
1997
- 1997-08-12 CN CN97250604U patent/CN2300471Y/en not_active Expired - Fee Related
-
1998
- 1998-06-11 AU AU77558/98A patent/AU734175B2/en not_active Ceased
- 1998-06-11 WO PCT/CN1998/000097 patent/WO1999009353A1/en not_active Application Discontinuation
- 1998-06-11 JP JP2000509978A patent/JP2002540372A/en active Pending
- 1998-06-11 EP EP98925388A patent/EP1013989A4/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2430511A (en) * | 1943-07-07 | 1947-11-11 | Air Reduction | Mixing arrangement for torches |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1013989A1 (en) | 2000-06-28 |
| EP1013989A4 (en) | 2001-05-16 |
| AU7755898A (en) | 1999-03-08 |
| JP2002540372A (en) | 2002-11-26 |
| CN2300471Y (en) | 1998-12-16 |
| WO1999009353A1 (en) | 1999-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TC | Change of applicant's name (sec. 104) |
Owner name: GUANGQI LIANG Free format text: FORMER NAME: GUANGQI LANG |
|
| FGA | Letters patent sealed or granted (standard patent) |