CN2113409U - High temp. gas blast lamp - Google Patents
High temp. gas blast lamp Download PDFInfo
- Publication number
- CN2113409U CN2113409U CN 92202709 CN92202709U CN2113409U CN 2113409 U CN2113409 U CN 2113409U CN 92202709 CN92202709 CN 92202709 CN 92202709 U CN92202709 U CN 92202709U CN 2113409 U CN2113409 U CN 2113409U
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- CN
- China
- Prior art keywords
- mixing tube
- air
- blowtorch
- main body
- fire hole
- 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.)
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Abstract
The utility model relates to a high temperature gas blast lamp which mainly comprises a mixing tube, a metal net hole, a jet, gases and an air channel. The utility model is characterized in that the mixing tube comprises a conic hollow cavity with an opposite vertex; the middle part of the opposite vertex point is provided with a hollow throat, which enlarges the total volume of the mixing tube at the same time. The utility model is favorable to the thorough pervasion and mixing of the combustion gas and the air, and the fire hole net is enlarged.
Description
The utility model belongs to gas burner.
In existing gas burner, traditional Bunsen burner and rice form gas lamp are arranged.All there is following weak point in they:＜1〉incomplete combustion, and flame temperature is low, the highlyest can only reach 1350 ℃;＜2〉owing to incomplete combustion, contain the carbon granule of higher concentration in the flame, bigger to the platinum crucible etch, and have carbon monoxide to emit, and contaminated environment, simultaneously, flame holding is poor, and the fire of taking off, tempering phenomenon are arranged;＜3〉because flame temperature is low, the laboratory that has adopts oxygen blast combustion-supporting, yet this flame has the localized hyperthermia district above 2000 ℃, burns platinum crucible easily, and cost rises.
Chinese patent application CN89203358.4(High jet burner) described is a kind of liquid fuel blowtorch.Though maximum temperature can reach 1400 ℃, it is an internal combustion flame, and the flame outlet diameter has only 25mm, and liner is fireclay refractory and so on.During high temperature flame, the oxidized part of refractory material sprays with flame, pollutes flame, platinum crucible and analytical sample etc.
The purpose of this utility model be to provide a kind of simple in structure, burning fully, high, the flame stabilization of flame temperature, the high-temperature region is wide and the scope of application is wide high-temperature fuel gas blowtorch.
Dynamics and thermodynamic principles according to fuel gas combustion system, and boundary speed gradient theory, the utility model has adopted following technical scheme: 1. improve mixing tube shape and structure, strengthen the total measurement (volume) of mixing tube, the abundant diffusion that helps combustion gas and air mixes; Mixing tube is by forming the hollow cavity of top taper, and the centre is provided with trunnion to the place, top.2. dwindle the ratio of nozzle length and diameter, make this ratio, help the gas diffusion less than 1.0.3. the air intlet direction is consistent with the direction that combustion gas sprays into mixing tube, and strengthens the gross area of air intlet, makes it greater than 400mm
2, make the ratio of combustion gas and air that the adjustable range of broad is arranged like this.4. strengthen the total long-pending of fire hole net, the diameter of fire hole net makes its sufficient combustion greater than 45mm.5. mixing tube adopts high temperature resistant, erosion-resisting glass material to make.
Because adopt technique scheme, the main feature of the utility model high-temperature fuel gas blowtorch: it is interior mixed external-burning blowtorch, and peak flame temperature can reach 1480 ℃, the straight footpath of flame can reach 45～50mm, highly reaches 300mm.
For this reason, the utlity model has following advantage:
1,, can replace oxygen blast flame fusion infusibility sample etc., and can not burn platinum appliance because of oxygen blast causes localized hyperthermia owing to the flame temperature height.
2, flame temperature height, the high-temperature region is wide, so fusing sample quick heating, required time is short, uses platinum crucible, iron crucible, can both melt the sample of infusibility in 2～3 minutes.
3, the blowtorch mixing tube adopts high temperature resistant, erosion-resisting glass material to make, and thermal conductivity factor is little, so heat loss is less, help flame and keep high temperature, and service life is also long.
4, applied widely, by the transposing nozzle, adjust gaseous-pressure and air inlet valve, the utility model is applicable to coal gas, natural gas, oil liquefied gas etc., can be used for the molten sample in laboratory of industrial departments such as metallurgy, geology, oil etc., also can use for field work laboratory and other high temperature heating occasion.
Now in conjunction with the accompanying drawings, the utility model is further specified.
Accompanying drawing is the utility model---the structural representation of high-temperature fuel gas blowtorch.
1 is nozzle among the figure, and 2 is the mixing tube main body, and 3 is reducing pipe, 4 is trunnion, and 5 is anemostat, and 6 is metal cap, 7 is metal fire hole net, and 8 is the air duct assembly, and 9 are sealing O type ring, 10 is air control valve, 11 is the primary air intake channel, and 12 for blast tube connects assembly, and 13 is fuel gas inlet, 14 is base, and 15 is fixed screw.
Mixing tube main body 2 is made up of reducing pipe 3, trunnion 4 and anemostat 5, and its total volume is greater than 150cm
2Nozzle 1 is fixed on the air duct assembly 8 by external screw thread.Combustion gas is passed through on the external screw thread fixed air channel group zoarium 8 by the top that connects assembly 12, and is connected with nozzle 1; The lower part that blast tube connects assembly 12 is bearing on the base 14; The lower end of mixing tube is bearing on the air duct assembly 8 by sealing O type ring 9; Interlocking with metal fire hole net 7 on the metal cap 6 is connected, down with the 2 top external diameters grafting of mixing tube main body; Air control valve 10 centre bore holders connect on the assembly 12 at blast tube, regulate the mixing ratio of control air and combustion gas by left-right rotation; The primary air passage has six, six air louvers, and adjustable extent is wide, and combustion sucks reducing pipe 3 with air from passage, automatically with combustion gas mixing behind nozzle ejection jet.
When the combustion gas with certain pressure arrives nozzle 1 by fuel gas inlet 13, when spraying into reducing pipe 3, because it is poor to exist momentum between gas jets and the air, can automatically the primary air of q.s be gone in the reducing pipe 3 by intake channel 11 injections, spread mixing, form combustion gas and Air mixing air-flow.This mixed airflow process reducing pipe 3, constantly supercharging, when forming restricted jet arrival trunnion 4, the pressure maximum.Behind the critical surface by trunnion 4, enter anemostat 5, its pressure descends, and flow velocity is accelerated, and diffusion mixes once more, through well-mixed combustion gas, lights by metal fire hole net 7, forms pure, stable thermal-flame.
Claims (5)
1, a kind of high-temperature fuel gas blowtorch, comprise nozzle 1, mixing tube main body 2, metal fire hole net 7, air control valve 10, air inlet passageway 11, fuel gas inlet 13, it is characterized in that: mixing tube main body 2 is by to the hollow cavity of top taper (being reducing pipe 3 and anemostat 5) with in the middle of being located at the trunnion 4 at place, top being formed; The ratio of nozzle 1 length and diameter is less than 1.0; Adopt large diameter metal fire hole net 7, six primary air intake channels are arranged, and the air intlet direction is consistent with the direction that combustion gas sprays into mixing tube.
2, blowtorch according to claim 1, the total measurement (volume) that it is characterized in that mixing tube main body 2 is greater than 150cm
3
3, blowtorch according to claim 1, the diameter of metal fire hole net 7 is greater than 45mm.
4, blowtorch according to claim 1, the gross area that it is characterized in that the primary air import is greater than 400mm
2
5, blowtorch according to claim 1 and 2 is characterized in that mixing tube main body 2 adopts high temperature resistant, erosion-resisting glass material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92202709 CN2113409U (en) | 1992-02-20 | 1992-02-20 | High temp. gas blast lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92202709 CN2113409U (en) | 1992-02-20 | 1992-02-20 | High temp. gas blast lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2113409U true CN2113409U (en) | 1992-08-19 |
Family
ID=4949494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92202709 Granted CN2113409U (en) | 1992-02-20 | 1992-02-20 | High temp. gas blast lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2113409U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293343C (en) * | 2004-09-22 | 2007-01-03 | 杨小华 | Fire spray lamp head |
| CN100352778C (en) * | 2004-06-06 | 2007-12-05 | 武志坚 | Glass melting method and furnace thereof |
| CN108443885A (en) * | 2018-03-27 | 2018-08-24 | 中国计量大学 | A kind of burner for fuel gases calorific value measuring device |
| CN110360560A (en) * | 2018-04-09 | 2019-10-22 | 中国石油天然气股份有限公司 | Combustion of natural gas auxiliary combustion equipment |
-
1992
- 1992-02-20 CN CN 92202709 patent/CN2113409U/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352778C (en) * | 2004-06-06 | 2007-12-05 | 武志坚 | Glass melting method and furnace thereof |
| CN1293343C (en) * | 2004-09-22 | 2007-01-03 | 杨小华 | Fire spray lamp head |
| CN108443885A (en) * | 2018-03-27 | 2018-08-24 | 中国计量大学 | A kind of burner for fuel gases calorific value measuring device |
| CN110360560A (en) * | 2018-04-09 | 2019-10-22 | 中国石油天然气股份有限公司 | Combustion of natural gas auxiliary combustion equipment |
| CN110360560B (en) * | 2018-04-09 | 2020-12-01 | 中国石油天然气股份有限公司 | Combustion-supporting device for combustion of natural gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |