CN105841155A - Dual-preheating-flame cutting nozzle - Google Patents
Dual-preheating-flame cutting nozzle Download PDFInfo
- Publication number
- CN105841155A CN105841155A CN201610201425.8A CN201610201425A CN105841155A CN 105841155 A CN105841155 A CN 105841155A CN 201610201425 A CN201610201425 A CN 201610201425A CN 105841155 A CN105841155 A CN 105841155A
- Authority
- CN
- China
- Prior art keywords
- road
- nozzle
- mixing chamber
- duct
- oxygen
- 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.)
- Pending
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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
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/52—Nozzles for torches; for blow-pipes
- F23D14/54—Nozzles for torches; for blow-pipes for cutting or welding metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/21—Burners specially adapted for a particular use
Landscapes
- 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 discloses a dual-preheating-flame cutting nozzle. The dual-preheating-flame cutting nozzle comprises a nozzle body, an A-path fuel gas and low-pressure oxygen mixing pore channel, a B-path fuel gas and low-pressure oxygen mixing pore channel, a high-pressure cutting oxygen pore channel, an A-path mixing chamber and a B-path mixing chamber, wherein the A-path mixing chamber and the B-path mixing chamber are formed in the positions, close to one end, of the nozzle body independently; the A-path fuel gas and low-pressure oxygen mixing pore channel communicates with the A-path mixing chamber and extends to the other end of the nozzle body; the B-path fuel gas and low-pressure oxygen mixing pore channel communicates with the B-path mixing chamber and extends to the other end of the nozzle body; and the high-pressure cutting oxygen pore channel is located in the position of the central axis of the nozzle body and penetrates through the nozzle body in the axial direction of the nozzle body. The dual-preheating-flame cutting nozzle is simple and compact in structure, and easy and convenient to control. By the adoption of the dual-preheating-flame cutting nozzle, in the large-fracture metal material flame cutting stage, a large quantity of gas media can be saved by extinguishing one path of preheating flame, and the purposes of energy saving and consumption reduction are achieved.
Description
Technical field
The present invention relates to a kind of double preheating gas flame cuttiug nozzle, this nozzle is used for big cross section metal material oxygen-flame
Cutting.
Background technology
Big cross section metal material oxygen-gas flame cuttiug is one of intermetallic composite coating highly energy-consuming operation, is mainly manifested in cutting
During gas medium consume huge.Big cross section metal material oxygen-gas flame cuttiug needs substantial amounts of at warm-up phase
Heat heats rapidly incision and is cut material, and gas medium must assure that the enough flows required for preheating supply
Should, consumption is the biggest.In the cutting stage, the thermal source of oxygen-gas flame cuttiug is mainly the reaction heat of metal and oxygen,
Particularly when cutting big thick metal material, its proportion is 90%, and the heat that pre-thermal-flame provides only accounts for
The 10% of total amount of heat.Pre-thermal-flame cutting stage Main Function be preheating, the cut metal surface of activation,
Maintaining cutting oxygen flow amount and keep cutting oxygen stream purity, pre-thermal-flame is in cutting stage pre-heat effect necessity
Not quite, if therefore still keep the flow of warm-up phase at cutting stage gas medium, the most unnecessary
Waste.
During metal oxygen-gas flame cuttiug, preheating time is between 3s～20s, and clipping time is according to material thickness and cuts
Cut length between a few minutes even dozens of minutes.Big cross section metal material oxygen-gas flame cuttiug uses traditional cutting
Cut technique and cutting implement, the built-in gas medium of cutting nozzles, low oxygen and high pressure oxygen each a-road-through road.
Gas medium mixes with combustion-supporting gas low oxygen mixing chamber bottom cutting torch, is transported to cutting nozzles and lights
Burning preheating；When incision metal material reaches burning-point, open cutting oxygen and cut.Existing big disconnected
The gas medium of face metal material gas flame cuttiug is in preheating and cutting stage, and flow is constant, cuts stage combustion gas
Medium wastes.
Summary of the invention
For the shortcoming of existing oxygen-gas flame cuttiug energy waste, it is an object of the invention to provide a kind of novel
Double preheating gas flame cuttiug nozzles, this nozzle arrangements is simple, control simplicity, with corresponding binary channels gas flame cuttiug
Torch carries out gas flame cuttiug with the use of to big cross section metal material, it is possible to realize energy-saving and cost-reducing purpose.
For achieving the above object, the present invention is by the following technical solutions:
A kind of double preheating gas flame cuttiug nozzle, including nozzle body, Low Pressure Gas Network oxygen mix duct, A road, B
Low Pressure Gas Network oxygen mix duct, road, high pressure cutting oxygen duct, A road mixing chamber, B road mixing chamber；Wherein,
Described A road mixing chamber and B road mixing chamber are separately formed at nozzle body on the position of one end；
Low Pressure Gas Network oxygen mix duct, A road connects with A road mixing chamber and extends to the other end of nozzle body, B
Low Pressure Gas Network oxygen mix duct, road connects with B road mixing chamber and extends to the other end of nozzle body；High pressure
Cutting oxygen duct is positioned at the cental axial position of nozzle body and along it axially through nozzle body.
Described A road mixing chamber and B road mixing chamber are respectively formed in the cross section axially vertical with nozzle body
Groove, it is preferable that this groove is annular groove.
Low Pressure Gas Network oxygen mix duct, described A road is made up of multiple circular hole ducts, those circular hole ducts
It is communicated in A road mixing chamber evenly distributedly.
Low Pressure Gas Network oxygen mix duct, described B road is made up of multiple circular hole ducts, those circular hole ducts
It is communicated in B road mixing chamber evenly distributedly.
The periphery of described A road mixing chamber and B road mixing chamber is formed with the round and smooth convex surface of step or horizontal ledge,
For being tightly connected with binary channels flame cutting torch.
Low Pressure Gas Network oxygen mix duct, described A road and Low Pressure Gas Network oxygen mix duct, B road add by drilling and reaming
Work forms, and described high pressure cutting oxygen duct uses to drill and ream and is processed to form or uses hole, electrocasting prefabricated Lavalle
Inlay behind road and be made.
It is an advantage of the current invention that:
Double preheating gas flame cuttiug nozzle arrangements of the present invention are simple, compact, control simplicity.Two-way gas medium
And the gaseous mixture of combustion-supporting gas is transported on double preheating gas flame cuttiug nozzle corresponding through binary channels flame cutting torch
Duct at light burning, form two independent pre-thermal-flames；Two independent flames can be lighted respectively
With extinguishing, meet the requirement of cutting technique.Extinguish a wherein pre-thermal-flame in road in the gas flame cuttiug stage can save
The most substantial amounts of gas medium, reaches energy-saving and cost-reducing purpose.
Accompanying drawing explanation
Fig. 1 is that horizontal ledge formula double preheating gas flame cuttiug nozzle of the present invention is along its axial profile.
Fig. 2 is that the nozzle of Fig. 1 is along the profile with axially vertical direction.
Fig. 3 is that step double preheating gas flame cuttiug nozzle of the present invention is along its axial profile.
Fig. 4 is that the nozzle of Fig. 2 is along the profile with axially vertical direction.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described, but the present invention is not limited to this.
As Figure 1-Figure 4, double preheating gas flame cuttiug nozzles of the present invention include nozzle body 4, the combustion gas of A road
Low oxygen mixing duct 2, Low Pressure Gas Network oxygen mix duct, B road 3, high pressure cutting oxygen duct 1, A
Road mixing chamber 5, B road mixing chamber 6；Wherein, A road mixing chamber 5 and B road mixing chamber 6 independently landform
Become at nozzle body 4 on the position of one end；Low Pressure Gas Network oxygen mix duct, A road 2 mixes with A road
Room 5 connects and extends to the other end of nozzle body 4, Low Pressure Gas Network oxygen mix duct, B road 3 and B road
Mixing chamber 6 connects and extends to the other end of nozzle body 4；High pressure cutting oxygen duct 1 is positioned at nozzle originally
The cental axial position of body 4 and along it axially through nozzle body 4.
In this pair of preheating gas flame cuttiug nozzle, on the position of end, process two at nozzle body 4
The central axis of annular groove independently, the bearing of trend of this groove and nozzle body 4.By this pair
After preheating gas flame cuttiug nozzle is tightly connected with the binary channels flame cutting torch matched, recessed in this annular of two
Two mixing chambers independently, i.e. A road mixing chamber 5 and B road mixing chamber 6 is defined accordingly at groove.
Drill and ream to the other end of nozzle body 4 from the inside of A road mixing chamber 5 and B road mixing chamber 6 respectively and process
Low Pressure Gas Network oxygen mix duct, road, Low Pressure Gas Network oxygen mix duct 2 and B, A road 3.
Shape of threads can be processed into the binary channels flame cutting torch screw thread matched even in the outside of nozzle body 4
Connect compression and form one, it is also possible to be processed into step-like dependence locking screw by double preheating gas flame cuttiug nozzle pressures
Tight formation one on the binary channels flame cutting torch matched.Can be further on these two independent A roads
The periphery of mixing chamber 5 and B road mixing chamber 6 is formed with the round and smooth convex surface of step or horizontal ledge, by this
The round and smooth convex surface of stepwise or horizontal ledge are tightly connected with the binary channels flame cutting torch matched, it is ensured that A road is mixed
Close Low Pressure Gas Network oxygen mix duct, road, room 5 and A 2 and B road mixing chamber 6 and B road Low Pressure Gas Network oxygen
Do not leak between gas mixing duct 3 and collaborate.
In this pair of preheating gas flame cuttiug nozzle, Low Pressure Gas Network oxygen mix duct, A road 2, B road Low Pressure Gas Network
Oxygen mix duct 3 can use multiple circular hole duct, is evenly distributed on annular groove.Wherein, circle
Quantity and the sectional area in pass duct are determined by calculating, can carry out increasing according to different traffic requirements and add deduct
Few.
In this pair of preheating gas flame cuttiug nozzle, machines such as commonly drilling and reaming can be taked in high pressure cutting oxygen duct 1
Processing and fabricating, it would however also be possible to employ making is inlayed behind duct in electrocasting prefabricated Lavalle.Wherein, high pressure cutting oxygen
The larynx footpath in pore road 1 determines according to cutting thickness scope.
Double preheating gas flame cuttiug nozzles of the present invention have two groups of gas mediums and combustion-supporting gas mixing duct, and
With binary channels flame cutting torch junction, there are two mixing chambers independently.This pair of preheating gas flame cuttiug
During nozzle operation, control system sends OPEN, opens two-way gas medium, two-way combustion-supporting gas electromagnetism
Threshold switch, two groups of gas mediums mix at A road mixing chamber and B road respectively with combustion-supporting gas (low oxygen)
Room is mixed to form the gaseous mixture of two groups of gas mediums and combustion-supporting gas, is then input to A road Low Pressure Gas Network oxygen
Gas mixing duct and Low Pressure Gas Network oxygen mix duct, B road, thus go out at double preheating gas flame cuttiug orifice gases
Form two groups of independent pre-thermal-flames, regulating gas medium and combustion-supporting gas pressure flows at Kou, make double flame in
Neutral flame, the cut material of preheating；When incision be cut material reach burning-point time, control system send beat
Opening instruction unpack high pressure oxygen electromagnetic valve switch, high pressure oxygen exports from high pressure cutting oxygen duct；Starting
After cutting, control system sends instruction, closes a road gas medium and combustion-supporting gas electromagnetic valve switch, extinguishes one
The pre-thermal-flame in road, the pre-thermal-flame in another road burns away and preheats cut material；After cutting, control
System sends instruction, after closing high pressure oxygen, extinguishes the pre-thermal-flame in another road, and cutting completes.
Double preheating gas flame cuttiug nozzles of the present invention have the Low Pressure Gas Network oxygen mix duct of two groups of independences.Double
The gaseous mixture of road gas medium and combustion-supporting gas is transported to double preheating gas flame cuttiug spray through binary channels flame cutting torch
Light burning at duct corresponding on mouth, form two independent pre-thermal-flames；Two independent flames can
To light respectively and to extinguish, meet the requirement of cutting technique.A pre-thermal-flame in road is extinguished in the gas flame cuttiug stage
Substantial amounts of gas medium can be saved, reach energy-saving and cost-reducing purpose.
Claims (7)
1. a double preheating gas flame cuttiug nozzle, it is characterised in that include nozzle body, A road Low Pressure Gas Network
Oxygen mix duct, Low Pressure Gas Network oxygen mix duct, B road, high pressure cutting oxygen duct, A road mixing chamber,
B road mixing chamber；Wherein, described A road mixing chamber and B road mixing chamber are separately formed at nozzle body
On the position of one end；Low Pressure Gas Network oxygen mix duct, A road connects with A road mixing chamber and extends to spray
The other end of mouth body, Low Pressure Gas Network oxygen mix duct, B road connects with B road mixing chamber and extends to nozzle
The other end of body；High pressure cutting oxygen duct be positioned at nozzle body cental axial position and along its axially through
Nozzle body.
Double preheating gas flame cuttiug nozzle the most according to claim 1, it is characterised in that described A road is mixed
Close room and B road mixing chamber is respectively formed at the groove in the cross section axially vertical with nozzle body.
Double preheating gas flame cuttiug nozzle the most according to claim 2, it is characterised in that described groove is
Annular groove.
Double preheating gas flame cuttiug nozzle the most according to claim 1, it is characterised in that described A road is fired
Gas low oxygen mixing duct is made up of multiple circular hole ducts, and those circular hole ducts connect evenly distributedly
In A road mixing chamber.
Double preheating gas flame cuttiug nozzle the most according to claim 1, it is characterised in that described B road is fired
Gas low oxygen mixing duct is made up of multiple circular hole ducts, and those circular hole ducts connect evenly distributedly
In B road mixing chamber.
Double preheating gas flame cuttiug nozzle the most according to claim 1, it is characterised in that described A road is mixed
The periphery closing room and B road mixing chamber is formed with the round and smooth convex surface of step or horizontal ledge, for fiery with binary channels
Flame cutting torch is tightly connected.
Double preheating gas flame cuttiug nozzle the most according to claim 1, it is characterised in that described A road is fired
Gas low oxygen mixing duct and Low Pressure Gas Network oxygen mix duct, B road process by drilling and reaming, described height
Crush-cutting cut oxygen duct use drill and ream be processed to form or use duct, electrocasting prefabricated Lavalle after inlay making and
Become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610201425.8A CN105841155A (en) | 2016-03-31 | 2016-03-31 | Dual-preheating-flame cutting nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610201425.8A CN105841155A (en) | 2016-03-31 | 2016-03-31 | Dual-preheating-flame cutting nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105841155A true CN105841155A (en) | 2016-08-10 |
Family
ID=56597831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610201425.8A Pending CN105841155A (en) | 2016-03-31 | 2016-03-31 | Dual-preheating-flame cutting nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105841155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524165A (en) * | 2016-11-05 | 2017-03-22 | 宁波方太厨具有限公司 | Ejector of gas cooker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3746500A (en) * | 1971-04-21 | 1973-07-17 | Airco Inc | Cutting torch tip |
| US5120026A (en) * | 1990-11-14 | 1992-06-09 | Claude Bissonnette | Fluid cooled cutting torch for operation with a premix and postmix nozzle |
| CN2358343Y (en) * | 1998-12-30 | 2000-01-12 | 上海五钢(集团)有限公司 | Nozzle of flame cutting torch |
| CN201462849U (en) * | 2009-01-16 | 2010-05-12 | 姜文丙 | Cutting torch |
-
2016
- 2016-03-31 CN CN201610201425.8A patent/CN105841155A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3746500A (en) * | 1971-04-21 | 1973-07-17 | Airco Inc | Cutting torch tip |
| US5120026A (en) * | 1990-11-14 | 1992-06-09 | Claude Bissonnette | Fluid cooled cutting torch for operation with a premix and postmix nozzle |
| CN2358343Y (en) * | 1998-12-30 | 2000-01-12 | 上海五钢(集团)有限公司 | Nozzle of flame cutting torch |
| CN201462849U (en) * | 2009-01-16 | 2010-05-12 | 姜文丙 | Cutting torch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524165A (en) * | 2016-11-05 | 2017-03-22 | 宁波方太厨具有限公司 | Ejector of gas cooker |
| CN106524165B (en) * | 2016-11-05 | 2018-11-06 | 宁波方太厨具有限公司 | Gas cooker injector |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |