CN108941850A - Self power generation welding equipment and its application method with protective gas - Google Patents
Self power generation welding equipment and its application method with protective gas Download PDFInfo
- Publication number
- CN108941850A CN108941850A CN201710391635.2A CN201710391635A CN108941850A CN 108941850 A CN108941850 A CN 108941850A CN 201710391635 A CN201710391635 A CN 201710391635A CN 108941850 A CN108941850 A CN 108941850A
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- Prior art keywords
- water
- methanol
- welding
- carbon dioxide
- gas
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
Abstract
The invention is related to a kind of self power generation welding equipment and its application method with protective gas, in the way of existing methanol-water reformation hydrogen production, methanol-water is subjected to reforming reaction and generates hydrogen and carbon dioxide, the hydrogen of generation, which is sent into fuel cell, to be electrochemically reacted to produce electricity, electric arc is irradiated to the welding portion of welding object by welding head after taking electricity from fuel cell, the carbon dioxide supply gas ejection section of generation is ejected into welding portion, to completely cut off the air around welding portion, prevent welding portion from aoxidizing, in the invention, carbon dioxide, which produces, to be sprayed, it is stored without liquefying, because accordingly dangerous without bring due to having using dioxide bottle, also just without monitoring, to eliminate monitoring instrument, achieve the purpose that electric welding device structure simplifies, furthermore electric welding equipment takes electric welding from the fuel cell of itself Connect, it is self-sufficient, without external power supply also can operation, the use of electric welding equipment, which limits, to be reduced.
Description
Technical field
The invention is related to a kind of self power generation welding equipment and its application method with protective gas.
Background technique
In recent years, electric welding equipment has been widely used in industrial production, is even more to answer especially in terms of the processing of metal
With a lot of.During carrying out electric welding to metal, welding portion can be by the oxides of surrounding, it is therefore desirable to welding
Part supplying inert gas --- carbon dioxide prevents the oxidation of welding portion, therefore, at present electric welding equipment generally have by
Electric arc is irradiated to the welding head of welding portion, is also equipped with the gas injection portion of carbon dioxide jet to welding portion, wherein gas
Body ejection section is by its nozzle sparging carbon dioxide, and carbon dioxide is then supplied by dioxide bottle.It is asked existing for this
Topic is that welding head can generate a large amount of heat in the welding process, will lead to its ambient temperature and directly rises, and carbon dioxide gas
Carbon dioxide in bottle is liquid, liquid carbon dioxide temperature one is heated will be vaporized into gaseous carbon dioxide (general 1kg's
Liquid carbon dioxide can produce about 0.5 cubic metre of gas), cause dioxide bottle to burst.Therefore in welding process
In need and to be connected to dioxide bottle with gas injection portion with long tube far from welding place dioxide bottle,
Also need that temperature and pressure that monitoring instrument monitors dioxide bottle is specially arranged so that whole electric welding equipment become it is complicated and
And cost is very high.And existing electric welding equipment need to also take electricity just to can be carried out operation, the use of electric welding equipment from power grid
It limits a lot of.
Summary of the invention
The purpose of the invention is to make electric welding device structure simplified and also can operation without external power supply.
The purpose of the invention is achieved through the following technical solutions:
A kind of self power generation welding equipment with protective gas is provided, comprising:
Electric arc is irradiated to the welding portion of welding object by welding head；
Gas injection portion is fixedly mounted on welding head bottom side, and is equipped with nozzle for carbon dioxide jet to the welding portion；
Feeder is connect with gas injection portion, is used for gas injection portion transport of carbon dioxide；
The feeder is methanol-water reforming hydrogen production device, is used to carry out reforming reaction to methanol-water to generate hydrogen and two
Carbonoxide, and be equipped with carbon dioxide outlet and carbon dioxide generated is exported to gas injection portion；
Further include fuel cell, connect with the hydrogen outlet of methanol-water reforming hydrogen production device, in methanol-water reformation system
The hydrogen generated in hydrogen production device is electrochemically reacted with oxygen to be produced electricl energy and water, and is equipped with feeder ear generated electric energy
It is supplied respectively to above-mentioned welding head, gas injection portion and methanol-water reforming hydrogen production device.
Wherein, the bottom in gas injection portion is equipped with exhaust portion, which is equipped with fan and is produced during welding with being discharged
Raw cigarette and carbon dioxide.
Wherein, flowmeter is equipped at the nozzle of nozzle, flowmeter detects that the underfed of injection gas is then sent out
Alarm signal.
Wherein, pressurizing device, the input of pressurizing device are serially connected between methanol-water reforming hydrogen production device and gas injection portion
The carbon dioxide outlet of end connection methanol-water reforming hydrogen production device, the output end of pressurizing device are connected to gas injection portion.
Wherein, methanol-water reforming hydrogen production device is stated equipped with separator, and separator is built-in with for hydrogen and dioxy
Change the adsorbent that carbon separates, adsorbent is carbon molecular sieve.
Wherein, methanol-water reforming hydrogen production device is additionally provided with methanol water pot for loading methanol-water, for heating methanol water
Vaporization superheater, the reformer for making methanol-water reformation hydrogen production, for being mixed to by hydrogen and carbon dioxide mix formation
The purifying column that the methanol in gas is purified is closed, methanol water pot, vaporization superheater, reformer and purifying column sequentially connect,
Middle vaporization superheater is built-in with the conduction oil that the methanol-water for exporting to methanol water pot is heated, the temperature model of the conduction oil
Enclosing is 200 degree to 500 degree, and purifying column is built-in with desalted water.
Wherein, methanol-water reforming hydrogen production device is equipped with the methanol-water that methanol stoste and water are matched in the ratio of 1:A
Matching device, methanol-water matching device are fetched water from outer water tube, and wherein the numberical range of A is 0.7 to 1.
The application method of above-mentioned self power generation welding equipment is also provided, comprising the following steps:
A. reforming reaction is carried out to generate hydrogen and carbon dioxide with methanol-water reforming hydrogen production device, the hydrogen of generation is sent into combustion
It generates electricity in material battery, the carbon dioxide of generation is delivered to gas injection portion；
When B. welding, welding head takes electricity from fuel cell, then electric arc is irradiated to the welding portion of welding object, gas spray
Portion is penetrated by carbon dioxide jet to the welding portion.
Wherein in step, it is sent into reformer after methanol-water being heated with conduction oil and carries out reforming reaction to generate by hydrogen
Then the mixed gas that gas and carbon dioxide mix are formed uses carbon molecules then with the methanol in desalination Water warfare mixed gas
Sieve in mixed gas hydrogen and carbon dioxide separation open, be delivered to gas after finally the gaseous carbon dioxide of generation is pressurizeed
Ejection section.
The invention the utility model has the advantages that
The invention is that methanol-water is carried out reforming reaction and generates hydrogen and two in the way of existing methanol-water reformation hydrogen production
Carbonoxide, the hydrogen of generation, which is sent into fuel cell, to be electrochemically reacted to produce electricity, and welding head is incited somebody to action after taking electricity from fuel cell
Electric arc is irradiated to the welding portion of welding object, and the carbon dioxide supply gas ejection section of generation is ejected into welding portion, with every
Air around exhausted welding portion, prevents welding portion from aoxidizing, and in the invention, carbon dioxide, which produces, to be sprayed, nothing
Need to liquefy storage, because accordingly dangerous without bring due to having using dioxide bottle, also just without monitoring, to eliminate
Monitoring instrument achievees the purpose that electric welding device structure simplifies, and furthermore electric welding equipment takes electric welding from the fuel cell of itself,
It is self-sufficient, without external power supply also can operation, the use of electric welding equipment, which limits, to be reduced.
Detailed description of the invention
Innovation and creation are described further using attached drawing, but the embodiment in attached drawing does not constitute and appoints to the invention
What is limited, for those of ordinary skill in the art, without creative efforts, can also be according to the following drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the self power generation welding equipment with protective gas.
Specific embodiment
As shown in Figure 1, the self power generation welding equipment with protective gas includes welding head 2, gas injection portion 3, methanol-water weight
Whole device for producing hydrogen 1, pressurizing device 5 and fuel cell 4, the hydrogen outlet of methanol-water reforming hydrogen production device 1 are connected to fuel cell
4, welding head 2 takes electricity to be welded from fuel cell 4, and gas injection portion 3 is fixedly mounted on 2 bottom side of welding head, methanol-water weight
The carbon dioxide outlet of whole device for producing hydrogen 1 is connect with pressurizing device 5, the gas outlet of pressurizing device 5 be connected to gas injection portion 3 with
It is supplied for it.
Since welding head 2 and gas ejection section 3 are all more existing technology, do not repeat here.Methanol-water reformation hydrogen production
Device 1 by sequentially connect methanol-water matching device 11, methanol water pot 12, vaporization superheater 13, reformer 14,15 and of purifying column
Separator 16 is constituted, and the water inlet of methanol-water matching device 11 connect to fetch water from outer water tube with outer water tube, point
Gaseous carbon dioxide outlet connection pressurizing device 5 from device 16, the hydrogen outlet of separator 16 connect fuel cell 4.
In use, methanol-water matching device 11 is fetched water from outer water tube, then water conservancy with electrodeionization technology (EDI)
Desalination is carried out, and the water after desalination is filtered using hyperfiltration technique (UF).After the completion of filtering, methanol-water matching device 11
Methanol stoste and water are matched in the ratio of 1:0.8, and the methanol-water for matching out is sent into methanol water pot 12 and is stored.Vapour
Change superheater 13 and obtain methanol-water from methanol water pot 12, and by the conduction oil of the high temperature in vaporization superheater 13 to methanol-water
It is heated, the methanol-water after heating, which is transported in methanol-water reforming hydrogen production device 1, carries out reforming reaction.Preferably, methanol
Water reforming hydrogen production device 1 controls its internal temperature between 250-300 DEG C, and pressure controls the methanol-water between 1-5MPa
After being admitted to methanol-water reforming hydrogen production device 1, by catalyst under conditions of fixed temperature and fixation pressure, in catalyst
Effect is lower to occur following reaction: CH3OH+H2O=CO2+3H2, to generate the gaseous mixture as made of hydrogen and carbon dioxide mix
Body.This part mixed gas is admitted to purifying column 15 after being discharged by methanol-water reforming hydrogen production device 1, purifying column 15 is taken off with built-in
Salt water carries out washing to methanol contained in mixed gas to remove methanol contained in mixed gas.Gaseous mixture after washing
Body is admitted in separator 16, and the carbon molecular sieve by being built in separator 16 is hydrogen and gaseous carbon dioxide point
It leaves.Gaseous carbon dioxide after separating is fed to after pressurizing device 5 is pressurized and gives gas injection portion 3, for gas spray
The gas supply of portion 3 is penetrated, the hydrogen that separator 16 is isolated is fed in fuel cell 4 as power generation raw material, in fuel cell 4
In, hydrogen generates electrochemical reaction: 2H in conjunction with from extraneous oxygen2+O2=2H2O produces electric energy and water.Wherein generate
Electric energy be respectively that welding head 2, gas injection portion 3 and methanol-water reforming hydrogen production device 1 are powered.Welding head 2 is obtained from fuel cell 4
After obtaining electric energy, electric arc is irradiated to the welding portion of welding object to weld, at this point, gas injection portion 3 is also by dioxy
Change carbon and be ejected into welding portion to completely cut off the air around welding portion, prevents welding portion from aoxidizing.In welding process, by methanol
The carbon dioxide that water reforming hydrogen production device 1 generates, which produces, to be sprayed, without storage of liquefying, because using carbon dioxide without having
Gas cylinder and bring is accordingly dangerous, also just without monitoring, to eliminate monitoring instrument, reach what electric welding device structure simplified
Purpose, furthermore electric welding equipment takes electric welding from the fuel cell 4 of itself, self-sufficient, without external power supply also can operation, electricity
The use of welding equipment, which limits, to be reduced.
Further, by the way that the temperature of conduction oil is controlled at 270 degree, so that by the temperature of the methanol-water after heat-conducting oil heating
The temperature close to methanol-water reforming hydrogen production device 1 is spent, methanol-water realizes temperature during being sent into methanol-water reforming hydrogen production device 1
The smooth change of degree.
Further, the electronic flowmeter for measuring carbon dioxide jet amount, the electricity are equipped at the nozzle of injector head
Subflow meter is electrically connected with extraneous control equipment, when electronic flowmeter detects the flow of injection gas less than preset value,
Electronic flow issues alarm signal to control equipment, controls equipment for the information for spraying the underfed of gas and passes through sound-light alarm
Form feed back to staff to warn.
Further, exhaust portion is installed in the bottom in gas injection portion 3, which is built-in with fan, welding process
In, fan is activated, and is detached discharge by the cigarette generated during welding and from the carbon dioxide of welding portion rebound back, is prevented
The pollution of welding portion and working environment.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the invention, rather than to this hair
It is bright create protection scope limitation, although being explained in detail referring to preferred embodiment to the invention, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the invention, without departing from this
The spirit and scope of innovation and creation technical solution.
Claims (10)
1. the self power generation welding equipment with protective gas, comprising:
Electric arc is irradiated to the welding portion of welding object by welding head；
Gas injection portion is fixedly mounted on welding head bottom side, and is equipped with nozzle for carbon dioxide jet to the welding portion；
Feeder is connect with gas injection portion, is used for gas injection portion transport of carbon dioxide；
It is characterized in that:
The feeder is methanol-water reforming hydrogen production device, is used to carry out reforming reaction to methanol-water to generate hydrogen and two
Carbonoxide, and be equipped with carbon dioxide outlet and carbon dioxide generated is exported to gas injection portion；
Further include fuel cell, connect with the hydrogen outlet of methanol-water reforming hydrogen production device, in methanol-water reformation system
The hydrogen generated in hydrogen production device is electrochemically reacted with oxygen to be produced electricl energy and water, and is equipped with feeder ear generated electric energy
It is supplied respectively to above-mentioned welding head, gas injection portion and methanol-water reforming hydrogen production device.
2. the self power generation welding equipment according to claim 1 with protective gas, it is characterized in that the gas injection portion
Bottom is equipped with exhaust portion, which is equipped with fan so that the cigarette and carbon dioxide that generate during welding is discharged.
3. the self power generation welding equipment according to claim 1 with protective gas, set at the nozzle of nozzle described in feature
There is flowmeter, flowmeter detects that the underfed of injection gas then sends out alarm signal.
4. the self power generation welding equipment according to claim 1 with protective gas, feature: methanol-water reforming hydrogen production device
Pressurizing device, the titanium dioxide of the input terminal connection methanol-water reforming hydrogen production device of pressurizing device are serially connected between gas injection portion
Carbon outlet, the output end of pressurizing device are connected to gas injection portion.
5. the self power generation welding equipment according to claim 1 with protective gas, it is characterized in that the methanol-water reforms system
Hydrogen production device is equipped with separator, and separator is built-in with the adsorbent for hydrogen and carbon dioxide separation to be opened.
6. the self power generation welding equipment according to claim 5 with protective gas, it is characterized in that the adsorbent is carbon point
Son sieve.
7. the self power generation welding equipment according to claim 5 with protective gas, it is characterized in that the methanol-water reforms system
Hydrogen production device be additionally provided with methanol water pot for loading methanol-water, for the vaporization superheater of heating methanol water, for making methanol-water
It is the reformer of reformation hydrogen production, net for being purified to the methanol in the mixed gas formed by hydrogen and carbon dioxide mix
Change tower, methanol water pot, vaporization superheater, reformer and purifying column sequentially connect, wherein vaporization superheater is built-in with for first
The conduction oil that the methanol-water of alcohol water pot output is heated, the temperature range of the conduction oil are 200 degree to 500 degree, in purifying column
It is equipped with desalted water.
8. the self power generation welding equipment according to claim 1 with protective gas, it is characterized in that the methanol-water reforms system
Hydrogen production device is equipped with methanol-water matching device that methanol stoste and water are matched in the ratio of 1:A, methanol-water matching device from
Outer water tube water intaking, wherein the numberical range of A is 0.7 to 1.
9. the application method of the self power generation welding equipment described in any one of claim 1-8 with protective gas, it is characterized in that
The following steps are included:
A. reforming reaction is carried out to generate hydrogen and carbon dioxide with methanol-water reforming hydrogen production device, the hydrogen of generation is sent into combustion
It generates electricity in material battery, the carbon dioxide of generation is delivered to gas injection portion；
When B. welding, welding head takes electricity from fuel cell, then electric arc is irradiated to the welding portion of welding object, gas spray
Portion is penetrated by carbon dioxide jet to the welding portion.
10. according to the method described in claim 9, it is characterized in that in step, weight is sent into after methanol-water is heated with conduction oil
Whole device carries out reforming reaction to generate the mixed gas formed by hydrogen and carbon dioxide mix, is then mixed with desalination Water warfare
Methanol in gas, then with carbon molecular sieve in mixed gas hydrogen and carbon dioxide separation open, finally the gas of generation
Gas injection portion is delivered to after state carbon dioxide pressurization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710391635.2A CN108941850A (en) | 2017-05-27 | 2017-05-27 | Self power generation welding equipment and its application method with protective gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710391635.2A CN108941850A (en) | 2017-05-27 | 2017-05-27 | Self power generation welding equipment and its application method with protective gas |
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| Publication Number | Publication Date |
|---|---|
| CN108941850A true CN108941850A (en) | 2018-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710391635.2A Withdrawn CN108941850A (en) | 2017-05-27 | 2017-05-27 | Self power generation welding equipment and its application method with protective gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112427780A (en) * | 2020-11-11 | 2021-03-02 | 广西天正钢结构有限公司 | Welding process for steel material for building engineering |
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2017
- 2017-05-27 CN CN201710391635.2A patent/CN108941850A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112427780A (en) * | 2020-11-11 | 2021-03-02 | 广西天正钢结构有限公司 | Welding process for steel material for building engineering |
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Application publication date: 20181207 |
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| WW01 | Invention patent application withdrawn after publication |