CN202132704U - Composite oxygen valve - Google Patents
Composite oxygen valve Download PDFInfo
- Publication number
- CN202132704U CN202132704U CN201120191053U CN201120191053U CN202132704U CN 202132704 U CN202132704 U CN 202132704U CN 201120191053 U CN201120191053 U CN 201120191053U CN 201120191053 U CN201120191053 U CN 201120191053U CN 202132704 U CN202132704 U CN 202132704U
- Authority
- CN
- China
- Prior art keywords
- valve
- oxygen
- check
- hand
- main
- 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.)
- Expired - Fee Related
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000001301 oxygen Substances 0.000 title claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- 239000007789 gas Substances 0.000 abstract description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 229910052786 argon Inorganic materials 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000002360 explosive Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model discloses a composite oxygen valve, which consists of a main valve body, a connecting pipe, a check valve, an air inlet pipe and a hand valve; the main valve body is respectively connected with a check valve through two connecting pipes which are connected in parallel, and the other ends of the two check valves are combined and connected with an air inlet pipe provided with a hand valve. When the large-caliber valve is used, before the main valve is opened and oxygen is introduced, the connected check valve and the hand valve can be opened firstly, argon or nitrogen is filled for pressure equalization, so that the impact of high-pressure gas on the valve when the large-caliber valve is used for conveying gas is reduced, the friction ignition explosion accident is prevented, and the operation safety of the large-caliber valve is improved.
Description
Technical field
The utility model belongs to the pipeline valve field, is specifically related to a kind of compound multi-function oxygen valve that is used to carry mixed gas.
Background technique
When opening oxygen valve again after providing before and after the oxygen valve of oxygen pressure reduction greater than 0.3MPa for steel works; The easy accident of blasting of striking sparks; Therefore general way is that inflated with nitrogen is all pressed at the oxygen valve rear portion, after pressure reduction is less than 0.3MPa, opens oxygen valve again, to guarantee safety.But inflated with nitrogen influences oxygen purity easily, and steel is exerted an influence.At present; The heavy caliber oxygen valve (more than the DN200) of domestic indivedual steel workss before coming into operation, employing be with little bypath valve being installed on the valve body, pouring nitrogen or argon gas through bypass valve; All press before and after the main valve; After pressure reduction before and after the main valve is less than certain value, open main valve again, come into operation.But owing to the error of pressure indication before and after the valve, the reason of operating aspect and the defective that valve is made; The unlatching of oxygen valve often exists very big danger; In the last few years; Indivedual steel mills and oxygen applying unit are caught fire and explosive accident when opening the heavy caliber oxygen valve, cause personal injury or death by accident.
Summary of the invention
The purpose of the utility model is exactly to above-mentioned defective, provides a kind of simple in structure, safe and practical, can charge into two kinds of gases simultaneously, avoids producing the composite oxygen air valve of spark and explosive accident.
The utility model has been taked following technical solution:
A kind of composite oxygen air valve is characterized in that, is made up of main valve body, connecting tube, check valve, suction tude and hand valve; Main valve body connects a check valve respectively through the connecting tube of two parallel connections, and two check valve the other ends merging are connected on the suction tude that is provided with the hand valve.
The good effect of the utility model is:
Because the utility model has installed a gas-entered passageway additional on main valve body; Realize multi-purpose valve, made it before opening the main valve aerating oxygen, can open the check valve and the hand valve of access earlier; Charge into argon gas or nitrogen is all pressed; Thereby reduce large bore valves pressurized gas when conveying gas the impact of valve is prevented to produce the frictional sparking explosive accident, improve the Security of large bore valves operation.
Description of drawings
Accompanying drawing is a composite oxygen air valve structural representation.
Among the figure: hand valve 1, suction tude 2, check valve 3, connecting tube 4, main valve body 5.
Embodiment
Visible by accompanying drawing, the composite oxygen air valve of the utility model mainly is to be made up of hand valve 1, suction tude 2, check valve 3, connecting tube 4 and 5 of main valve bodies.After the other end that 3, two check valves 3 of a check valve respectively are installed on 4, two connecting tubes 4 of the side of main valve body 5 two connecting tubes of parallel connection merges, be connected on the suction tude 2, hand valve 1 is housed on the suction tude 2.During use, main valve body 5 is connected on the oxygen channel, hand valve 1 is connected on argon gas or the nitrogen pipeline gets final product again.
Claims (1)
1. a composite oxygen air valve is characterized in that, is made up of main valve body, connecting tube, check valve, suction tude and hand valve; Main valve body connects a check valve respectively through the connecting tube of two parallel connections, and two check valve the other ends merging are connected on the suction tude that is provided with the hand valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120191053U CN202132704U (en) | 2011-06-08 | 2011-06-08 | Composite oxygen valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120191053U CN202132704U (en) | 2011-06-08 | 2011-06-08 | Composite oxygen valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132704U true CN202132704U (en) | 2012-02-01 |
Family
ID=45521471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120191053U Expired - Fee Related CN202132704U (en) | 2011-06-08 | 2011-06-08 | Composite oxygen valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733684A (en) * | 2016-03-03 | 2016-07-06 | 中石化南京工程有限公司 | Start-up oxygen introduction method for gasification furnace |
-
2011
- 2011-06-08 CN CN201120191053U patent/CN202132704U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733684A (en) * | 2016-03-03 | 2016-07-06 | 中石化南京工程有限公司 | Start-up oxygen introduction method for gasification furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20170608 |