CN206936650U - A kind of sealing air supply system that can carry vacuum and positive/negative-pressure - Google Patents
A kind of sealing air supply system that can carry vacuum and positive/negative-pressure Download PDFInfo
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- CN206936650U CN206936650U CN201720443342.XU CN201720443342U CN206936650U CN 206936650 U CN206936650 U CN 206936650U CN 201720443342 U CN201720443342 U CN 201720443342U CN 206936650 U CN206936650 U CN 206936650U
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Abstract
The utility model discloses a kind of sealing air supply system that can carry vacuum and positive/negative-pressure, including：Gas cylinder,Pressure-reducing valve,First flange component,Vacuum metal bellows,Second flange component,Direct-acting electromagnetic valve,3rd flange assembly,Sealed chamber,Gas cylinder gas outlet sets a pressure-reducing valve and gas cylinder is threadedly coupled with pressure-reducing valve by sealing,Pressure-reducing valve right-hand member is threadedly coupled first flange component by sealing,First flange component right-hand member welds a vacuum metal bellows,Vacuum metal bellows right-hand member welds second flange component,Second flange component right-hand member connects a direct-acting electromagnetic valve and is threadedly coupled between second flange component and direct-acting electromagnetic valve by sealing,Direct-acting electromagnetic valve right-hand member is threadedly coupled the 3rd flange assembly by sealing,3rd flange assembly is bolted sealed chamber,The utility model has sealing strong,Prevent air penetrates into from causing inert gas to pollute,Carry vacuum and positive/negative-pressure and improve supply purity,The advantages of improving Product jointing quality.
Description
Technical field
A kind of sealing air supply system is the utility model is related to, is specifically related to a kind of to carry the close of vacuum and positive/negative-pressure
Air supply system is sealed, applied to welding technology field.
Background technology
Welding technique has been popularized very much in today's society, but want molten bath preferably protected, face of weld will not
Oxidation, it is necessary to welded under vacuum conditions, but when being supplied to vacuum environment, traditional conventional hoses internal pressure
Sharp fall, causes inside hose pressure to be less than atmospheric pressure, air can enter flexible pipe, cause the inert gas of inside hose by dirt
Dye, the KF series vacuum clamp joints that tradition uses in addition do not possess the ability of carrying malleation, in internal pipe pressure higher than big
Under conditions of air pressure, O-ring can be extruded outwards, cause to lose sealability, in the high vacuum welding of supply purity requirement
Under environment, there is provided contaminated inert gas can cause weldment to aoxidize, and prevent the welding quality of product from up to standard.
Utility model content
To solve the defects of prior art, the utility model discloses one kind carrying vacuum and positive/negative-pressure, sealing
By force, pollution and raising supply purity, the improvement Product jointing matter for causing inert gas because of the infiltration of outside air can be prevented
The sealing air supply system of amount.
The utility model discloses a kind of sealing air supply system that can carry vacuum and positive/negative-pressure, including：Gas cylinder, decompression
Valve, first flange component, vacuum metal bellows, second flange component, direct-acting electromagnetic valve, the 3rd flange assembly, annular seal space
Room, the gas cylinder gas outlet sets a pressure-reducing valve and gas cylinder is threadedly coupled with pressure-reducing valve by sealing, the pressure-reducing valve right-hand member
First flange component is threadedly coupled by sealing, the first flange component right-hand member welds a vacuum metal bellows, described
Vacuum metal bellows right-hand member welds second flange component, the second flange component right-hand member connect a direct-acting electromagnetic valve and
It is threadedly coupled between second flange component and direct-acting electromagnetic valve by sealing, the direct-acting electromagnetic valve right-hand member is by sealing spiral shell
Line connects the 3rd flange assembly, and the 3rd flange assembly is bolted sealed chamber.
The model DN15*2000 of the vacuum metal bellows of the first flange component right-hand member welding.
The model 2W050-15A of the direct-acting electromagnetic valve of the second flange component right-hand member connection.
Because using above-mentioned technical proposal, the utility model has following advantageous benefits：
1st, vacuum and positive/negative-pressure are carried.
2nd, sealing is strong, can prevent the pollution that causes inert gas because of the infiltration of outside air, improves supply purity, changes
The welding quality of kind product.
Brief description of the drawings
Fig. 1 is a kind of structure chart for the sealing air supply system that can carry vacuum and positive/negative-pressure of the utility model；
Fig. 2 is a kind of vacuum metal bellows for the sealing air supply system that can carry vacuum and positive/negative-pressure of the utility model
Sectional view；
Fig. 3 is a kind of flange assembly section view for the sealing air supply system that can carry vacuum and positive/negative-pressure of the utility model
Figure.
Wherein：1- gas cylinders；2- pressure-reducing valves；3- first flange components；4- vacuum metal bellowss；5- second flange components；
6- direct-acting electromagnetic valves；The flange assemblies of 7- the 3rd；8- sealed chambers.
Embodiment
As shown in figure 1, the utility model discloses a kind of sealing air supply system that can carry vacuum and positive/negative-pressure, bag
Include：Gas cylinder 1, pressure-reducing valve 2, first flange component 3, vacuum metal bellows 4, second flange component 5, direct-acting electromagnetic valve 6,
Three flange assemblies 7, sealed chamber 8, the gas outlet of gas cylinder 1 sets a pressure-reducing valve 2 and gas cylinder 1 passes through sealing with pressure-reducing valve 2
Threaded connection, the right-hand member of pressure-reducing valve 2 is by sealing threaded connection first flange component 3, the right-hand member of first flange component 3 weldering
Connect a vacuum metal bellows 4, the right-hand member of the vacuum metal bellows 4 welding second flange component 5, the second flange group
The right-hand member of part 5 connects a direct-acting electromagnetic valve 6 and connected between second flange component 5 and direct-acting electromagnetic valve 6 by sealing screw thread
Connect, the right-hand member of direct-acting electromagnetic valve 6 is threadedly coupled the 3rd flange assembly 7 by sealing, and the 3rd flange assembly 7 passes through spiral shell
Tether and connect sealed chamber 8.
The model DN15*2000 of the vacuum metal bellows 4 of the right-hand member of first flange component 3 welding.
The model 2W050-15A of the direct-acting electromagnetic valve 6 of the right-hand member of second flange component 5 connection.
The utility model is implemented：In use, the valve of gas cylinder 1 is opened, source of the gas is by sealing screw thread
Depressurized into pressure-reducing valve 2 and vacuum metal ripple is entered by sealing screw thread and first flange component 3 again after reaching stable
Pipe 4, because the seal O-ring in flange assembly is bolted fixation, so flange assembly when normal pressure is carried, seals O
Type circle will not cause to lose sealability because of outwards being extruded, and then source of the gas is entered back into inside vacuum metal bellows 4,
When being supplied to vacuum environment, the pressure sharp fall in pipe is less than atmospheric pressure, and vacuum metal bellows 4 has carrying internal pressure
Ability, air will not enter in pipe the inert gas for causing to pollute in pipe and influence supply purity, and then source of the gas is again by the
Two flange assemblies 5 and sealing screw thread reach direct-acting electromagnetic valve 6, and the use of direct-acting electromagnetic valve 6 is to better control over confession
The break-make of gas, when direct-acting electromagnetic valve 6 is powered, magnet coil produces electromagnetic force and closure member is lifted from valve seat, and valve is opened,
So that source of the gas enters sealed chamber 8 by the 3rd flange assembly 7, then welding job proceeds by, and direct-acting electromagnetic valve 6 powers off
When, electromagnetic force is disappeared, and spring handle closure member is pressed on valve seat, and valve is closed, and the source of the gas entered in sealed chamber 8 will break
Open, then welding job also stops therewith.
Finally it should be noted that：Above example only not limits the utility model and retouched to illustrate the utility model
The technical scheme stated；Therefore, although this specification the utility model is had been carried out with reference to above-mentioned each embodiment it is detailed
Illustrate, still, it will be understood by those within the art that, still the utility model can be modified or equally replaced
Change；And all do not depart from technical scheme and its improvement of spirit and scope of the present utility model, it all should cover new in this practicality
In the right of type.
Claims (3)
1. a kind of sealing air supply system that can carry vacuum and positive/negative-pressure, including：It is gas cylinder, pressure-reducing valve, first flange component, true
Empty metal bellows, second flange component, direct-acting electromagnetic valve, the 3rd flange assembly, sealed chamber, it is characterised in that：It is described
Gas cylinder gas outlet sets a pressure-reducing valve and gas cylinder is threadedly coupled with pressure-reducing valve by sealing, and the pressure-reducing valve right-hand member passes through sealing
First flange component is threadedly coupled, the first flange component right-hand member welds a vacuum metal bellows, the vacuum metal
Bellows right-hand member welds second flange component, and the second flange component right-hand member connects a direct-acting electromagnetic valve and second flange
Be threadedly coupled between component and direct-acting electromagnetic valve by sealing, the direct-acting electromagnetic valve right-hand member is threadedly coupled the by sealing
Three flange assemblies, the 3rd flange assembly are bolted sealed chamber.
A kind of 2. sealing air supply system that can carry vacuum and positive/negative-pressure according to claim 1, it is characterised in that：Institute
State the model DN15*2000 of the vacuum metal bellows of first flange component right-hand member welding.
A kind of 3. sealing air supply system that can carry vacuum and positive/negative-pressure according to claim 1, it is characterised in that：Institute
State the model 2W050-15A of the direct-acting electromagnetic valve of second flange component right-hand member connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720443342.XU CN206936650U (en) | 2017-04-26 | 2017-04-26 | A kind of sealing air supply system that can carry vacuum and positive/negative-pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720443342.XU CN206936650U (en) | 2017-04-26 | 2017-04-26 | A kind of sealing air supply system that can carry vacuum and positive/negative-pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206936650U true CN206936650U (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720443342.XU Active CN206936650U (en) | 2017-04-26 | 2017-04-26 | A kind of sealing air supply system that can carry vacuum and positive/negative-pressure |
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| CN (1) | CN206936650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030416A (en) * | 2017-04-26 | 2017-08-11 | 六安六八航空航天精密器件有限公司 | It is a kind of to carry the sealing air supply system of vacuum and positive/negative-pressure |
-
2017
- 2017-04-26 CN CN201720443342.XU patent/CN206936650U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030416A (en) * | 2017-04-26 | 2017-08-11 | 六安六八航空航天精密器件有限公司 | It is a kind of to carry the sealing air supply system of vacuum and positive/negative-pressure |
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