CN109694762A - A kind of ether hydro carbons welding gas - Google Patents
A kind of ether hydro carbons welding gas Download PDFInfo
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- CN109694762A CN109694762A CN201910055605.3A CN201910055605A CN109694762A CN 109694762 A CN109694762 A CN 109694762A CN 201910055605 A CN201910055605 A CN 201910055605A CN 109694762 A CN109694762 A CN 109694762A
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- ether
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- hydro carbons
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
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- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention relates to a kind of ether hydro carbons welding gases, are more particularly to a kind of gas for industrial welding.The scheme of use is as follows: a kind of ether hydro carbons welding gas, including ingredient and weight percent are as follows: dimethyl ether 20-50wt%, propylene 10-50wt%, butane 10-40wt%, with additive 5-10wt%, the wherein each component and weight percent in additive are as follows: ether 30-80wt%, two polycyclics penta ethylene iron 1-50wt% and nitric acid ruthenium 5-50wt%.The present invention provide a kind of high-temperature, high heating value, environmental-friendly, moderate pressure, safety is good, be not tempered using carbon-containing fuel as Main Components, be doped with the ether hydro carbons welding gas of additive again.
Description
Technical field
The present invention relates to a kind of ether hydro carbons welding gases, are more particularly to a kind of gas for industrial welding.
Background technique
Acetylene is also known as acetylene, is a kind of using extensive industrial combustion gas, flame temperature is up to 3160 DEG C (in oxygen
Burning), it is the leading gas source of current Metal Cutting, welding field, however since its special chemical property causes it inborn
Defect:
1, pollute environment: acetylene gas is calcium carbide (calcium carbide CaC2) add the product of water, and contain a small amount of p and s in calcium carbide, because
This, with hydrogen phosphide (H in reaction process3) and hydrogen sulfide (H P2) etc. S pernicious gases generate.In addition, there are also a small amount of in lime slag
Nitrolim generates.Above-mentioned by-product all polluted source, soil and air.
2, consume the energy: calcium carbide is to be smelted at a high temperature of 3000 DEG C with coke and quick lime, therefore need to consume a large amount of electric energy, refining
One ton of calcium carbide needs 3600 degree of power consumption, is one of typical electric-tiger.The production of calcium carbide need to pass through six energy conversions altogether.
3, Yi Huihuo, dangerous: since acetylene gas burning velocity is fast, the air velocity per second up to 7.60 meters, when higher than welding.Cause
This is easily tempered.Thus caused safety accident is countless.In addition, since acetylene gas property is active, it is extremely unstable, in pressure
Higher than 1.5kg/cm2When just easily set off an explosion, therefore acetylene gas cannot directly filling bottle use, and need in advance into steel cylinder be added load
Body, then acetylene gas compression is dissolved in carrier, therefore what is used now in industry is known as dissolved acetylene.In short, acetylene gas is a kind of
The industrial combustion gas being absolutely unsafe.
In recent years, have some generation acetylene cutting gas both at home and abroad and enter market, the product of country's substitution acetylene is mainly third
Alkene, propane, liquefied petroleum gas and its several gaseous mixtures in them.Its type and advantage and disadvantage are as follows: being 1. original with high-pure propylene
The cutting gas of material, advantage are that ignition temperature is higher, the disadvantage is that it is big to load pressure, production more demanding to the design pressure of container
High expensive；2. advantage is that saturation vapour pressure is more slightly lower than propylene, the disadvantage is that burning velocity using propane as the cutting gas of raw material
Slowly, temperature is relatively low, preheating time；3. advantage is at low cost, the disadvantage is that temperature is inclined using liquefied petroleum gas as the cutting gas of raw material
Low, using effect is poor when winter low temperature, and oxygen consumption is large-minded.
In addition, number of patent application 94111279.9 is alleged to use the carbon containing 5 above organic matter 91-96% of (C5) hydrocarbon, and it is added
A small amount of acetone, sodium hydroxide, sulfuric acid, potassium permanganate, dimethylbenzene etc. make additive and constitute stimulated acetylene fuel, since C5 is former without pressure
Material, implements in this way, can not gasify, under normal conditions, it is impossible to obtain reliably cutting gas and welding gas.
Summary of the invention
The purpose of the present invention is to provide a kind of high-temperature, high heating value, environmental-friendly, moderate pressure, safety is good, does not return
Fire using carbon-containing fuel as Main Components, again be doped with additive ether hydro carbons weld evil gas.
The inventors of the present invention pass through in-depth study, as a result, it has been found that: based on dimethyl ether, propylene, butane, in additive
Under booster action, guarantee to enable the ignition temperature of above-mentioned gaseous mixture to mention under the premise of moderate pressure, safety are good finally
Height, a series of combustion characteristics are improved, and are not only suitable for cutting to obtain one kind, but also be suitable for the infant industry welding of welding
Gas.
That is, the present invention relates to a kind of ether hydro carbons welding gas, including ingredient and weight percent are as follows:
Dimethyl ether 20-50wt%,
Propylene 10-50wt%,
Butane 10-40wt%,
With additive 5-10wt%,
The wherein each component and weight percent in additive are as follows:
Ether 30-80wt%,
Two polycyclics, penta ethylene iron 1-50wt%,
With nitric acid ruthenium 5-50wt%.
Ether hydro carbons welding gas of the invention is a kind of high-temperature, high heating value, environmental-friendly, pressure side is moderate, safety is good, no
Tempering, it is lower-cost using carbon-containing fuel as Main Components, be doped with the ether hydro carbons welding gas of additive again.
It has the advantages that:
(1) security performance is high；It is insensitive to shaking, it will not burn in thin oxygen；And explosion limit it is small (4%~
10%)；Using comparatively safe.
(2) when using welding gun, flame jet velocity reaches as high as 7.6m/s, can be up to 1650 DEG C or more without comburant oxygen；
Especially very big convenience has been brought to outdoor and high altitude operation.
(3) it is used cooperatively with oxygen, more oxygen can be saved.
Specific embodiment
In the following, the present invention is described in detail.
The present invention relates to a kind of ether hydro carbons welding gas, including ingredient and weight percent are as follows:
Dimethyl ether 20-50wt%,
Propylene 10-50wt%,
Butane 10-40wt%,
With additive 5-10wt%,
The wherein each component and weight percent in additive are as follows:
Ether 30-80wt%,
Two polycyclics, penta ethylene iron 1-50wt%,
With nitric acid ruthenium 5-50wt%.
Dimethyl ether is increasingly paid attention to by people as novel clean dyestuff, and dimethyl ether is colourless, tasteless in room temperature, normal pressure
Gas can increase the supply of oxygen since itself is oxygen-containing in combustion, therefore have good burning performance, nothing in combustion process
Residue, no black smoke, the ideal substitute as liquefied petroleum gas and diesel oil.However dimethyl ether calorific value is lower, cuts in steel plate
Cut and be brazed, aperture etc. it is obviously slower than acetylene.It is (interior that inventor etc. comprehensively considers the enthalpy of combustion of various gases, combustion characteristics
Outer flame temperature), it is attempted by constantly bringing forth new ideas property, develops the gas based on dimethyl ether, 2 kinds of gases of propylene and butane finally
As auxiliary, the comprehensive performance indicator for improving combustion gas.
The percentage of 3 kinds of gas further does following preferred:
Dimethyl ether 30-50wt%,
Propylene 20-40wt%,
With butane 20-30wt%,
In addition, inventors etc. also start with from combustion mechanism, by the way that the additions such as a small amount of, combustion-supporting, catalysis, explosion-proof smoke elimination are added
Agent, so that the increased flame speeds of mixed component, ignition temperature are improved, combustion characteristics is improved.
Each component and weight percent in additive are as follows: ether 30-80wt%, two polycyclics, penta ethylene iron 1-50wt% and
Nitric acid ruthenium 5-50wt%.
In R&D process, inventor etc. has found being used cooperatively for two polycyclics, penta ethylene iron and nitric acid ruthenium, can make its dentate
The ion-molecule reaction for participating in free radical chain reactions and Soot Formation has good result that is combustion-supporting and eliminating smoke.Ether, not only
It can be used as cosolvent, and can be used as combustion adjuvant.
Each component and weight percent in additive can be further preferred are as follows:
Ether 50-80wt%,
Two polycyclics, penta ethylene iron 10-50wt%,
With nitric acid ruthenium 10-50wt%.
A small amount of nanometer aluminium powder can also be added in additive, help to improve the ignition temperature of flame.It is each in additive
Component and weight percent can be further preferred are as follows:
Ether 50-80wt%,
Two polycyclics, penta ethylene iron 10-50wt%,
Nitric acid ruthenium 10-50wt%,
With nanometer aluminium powder 10-20wt%.
Embodiment 1
Air mixture, wherein the ingredient and weight percent prepared are: dimethyl ether 40wt%, propylene 35wt%, butane 20wt%,
Ether 3.5wt%, two polycyclics penta ethylene iron 0.5wt% and nitric acid ruthenium 1wt%.The generally applicable commercial channel purchase of various gases, so
After be mixed according to the above mentioned proportion, mixture operation can be realized by conventional equipment, must be pacified certainly in strict accordance with operating instruction
Full operation.The air mixture is easily liquefied filling in the case where 20-30 DEG C.After tested, when filling air mixture 430g, initially
Pressure is 0.74MPa, using welding gun, can reach 1680 DEG C, after comburant oxygen without comburant oxygen, flame temperature is reachable
2590 DEG C, combustion process tempering-free phenomenon.
Embodiment 2
Air mixture, wherein the ingredient and weight percent prepared are: dimethyl ether 35wt%, propylene 40wt%, butane 20wt%,
Ether 3.5wt%, two polycyclics penta ethylene iron 0.5wt%, nitric acid ruthenium 0.5wt% and nanometer aluminium powder 0.5wt%.After tested, filling
When air mixture 430g, initial pressure 0.80MPa can reach 1770 DEG C without comburant oxygen, oxygen helps using welding gun
After combustion, flame temperature is up to 2730 DEG C, combustion process tempering-free phenomenon.
Embodiment 3
Air mixture, wherein the ingredient and weight percent prepared are: dimethyl ether 50wt%, propylene 35wt%, butane 10wt%,
Ether 3.5wt%, two polycyclics penta ethylene iron 0.5wt%, nitric acid ruthenium 0.5wt% and nanometer aluminium powder 0.5wt%.After tested, filling
When air mixture 430g, initial pressure 0.75MPa can reach 1720 DEG C without comburant oxygen, oxygen helps using welding gun
After combustion, flame temperature is up to 2650 DEG C, combustion process tempering-free phenomenon.
Claims (3)
1. a kind of ether hydro carbons welding gas, including ingredient and weight percent are as follows:
Dimethyl ether 20-50wt%,
Propylene 10-50wt%,
Butane 10-40wt%,
With additive 5-10wt%,
The wherein each component and weight percent in additive are as follows:
Ether 30-80wt%,
Two polycyclics, penta ethylene iron 1-50wt%,
With nitric acid ruthenium 5-50wt%.
2. industry air mixture described in claim 1, the wherein weight percent of dimethyl ether, propylene and butane are as follows:
Dimethyl ether 30-50wt%,
Propylene 20-40wt%,
With butane 20-30wt%.
3. industry air mixture described in claim 1, the wherein each component and weight percent in additive are as follows:
Ether 50-80wt%,
Two polycyclics, penta ethylene iron 10-50wt%,
Nitric acid ruthenium 10-50wt%,
With nanometer aluminium powder 10-20wt%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910055605.3A CN109694762A (en) | 2019-01-11 | 2019-01-11 | A kind of ether hydro carbons welding gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910055605.3A CN109694762A (en) | 2019-01-11 | 2019-01-11 | A kind of ether hydro carbons welding gas |
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| CN109694762A true CN109694762A (en) | 2019-04-30 |
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| CN201910055605.3A Pending CN109694762A (en) | 2019-01-11 | 2019-01-11 | A kind of ether hydro carbons welding gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195049A (en) * | 2020-09-01 | 2021-01-08 | 宁波盾科新材料有限公司 | Welding gas mixture without oxygen combustion supporting |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11106769A (en) * | 1997-10-02 | 1999-04-20 | Toagosei Co Ltd | Ethylene mixture composition for gas pressure welding of steel material |
| CN1237614A (en) * | 1998-06-03 | 1999-12-08 | 黄长江 | Welding and cutting gas and its preparation method |
| CN1724620A (en) * | 2005-07-05 | 2006-01-25 | 泸天化（集团）有限责任公司 | Energy-saving environmental protection type dimethylether industrial cutting gas |
| CN102492503A (en) * | 2011-11-25 | 2012-06-13 | 新奥新能(北京)科技有限公司 | Novel industrial cutting gas with dimethyl ether as main component |
| CN103060034A (en) * | 2012-12-25 | 2013-04-24 | 克得生 | Hybrid welding gas |
| CN103320190A (en) * | 2013-06-25 | 2013-09-25 | 苍溪县大通天然气投资有限公司 | Welding and cutting gas and preparation method thereof |
| CN104099145A (en) * | 2014-07-28 | 2014-10-15 | 周晓兰 | Nano welding and cutting gas |
| CN104475111A (en) * | 2014-11-24 | 2015-04-01 | 太原理工大学 | Catalyst for preparing methane by reaction of coal and carbon oxide and preparation method of catalyst |
-
2019
- 2019-01-11 CN CN201910055605.3A patent/CN109694762A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11106769A (en) * | 1997-10-02 | 1999-04-20 | Toagosei Co Ltd | Ethylene mixture composition for gas pressure welding of steel material |
| CN1237614A (en) * | 1998-06-03 | 1999-12-08 | 黄长江 | Welding and cutting gas and its preparation method |
| CN1724620A (en) * | 2005-07-05 | 2006-01-25 | 泸天化（集团）有限责任公司 | Energy-saving environmental protection type dimethylether industrial cutting gas |
| CN102492503A (en) * | 2011-11-25 | 2012-06-13 | 新奥新能(北京)科技有限公司 | Novel industrial cutting gas with dimethyl ether as main component |
| CN103060034A (en) * | 2012-12-25 | 2013-04-24 | 克得生 | Hybrid welding gas |
| CN103320190A (en) * | 2013-06-25 | 2013-09-25 | 苍溪县大通天然气投资有限公司 | Welding and cutting gas and preparation method thereof |
| CN104099145A (en) * | 2014-07-28 | 2014-10-15 | 周晓兰 | Nano welding and cutting gas |
| CN104475111A (en) * | 2014-11-24 | 2015-04-01 | 太原理工大学 | Catalyst for preparing methane by reaction of coal and carbon oxide and preparation method of catalyst |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195049A (en) * | 2020-09-01 | 2021-01-08 | 宁波盾科新材料有限公司 | Welding gas mixture without oxygen combustion supporting |
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Application publication date: 20190430 |