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
- gas
- oxygen
- main
- check valve
- 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
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a composite oxygen valve, comprising a main valve body, a check valve, a gas inlet pipe and a manual valve, wherein the main valve body is respectively connected with one check valve by two parallel connection pipes, another ends of two check valve are combined and connected with the gas inlet pipe of the manual valve. While in use, the main valve is opened and the oxygen is pumped into the main valve. The access check valve and the manual valve are firstly opened and the argon gas or nitrogen gas is pumped into the valve to equalize the pressure, therefore the impact of the high-pressure gas on the valve is reduced when the gas is transferred by the large-aperture valve, the frictional sparking explosion accident is prevented and the safety for operating the large-aperture valve is increased.
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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204187281U (en) | A kind of pressure relief system for high-pressure gas long distance pipeline | |
| CN107676092A (en) | A kind of liquid carbon dioxide phase transformation explosion rapid hole sealing device and method for sealing | |
| CN204042084U (en) | The hard leakproof one-way valve of a kind of high pressure for natural gas compressor | |
| CN202132704U (en) | Composite oxygen valve | |
| CN104329567B (en) | Pressure relief system for long-distance pipeline | |
| CN201503024U (en) | Strength air cannon | |
| CN204457839U (en) | A kind of gas-solid two-phase jet flow initiatively back-fire relief explosion suppression device | |
| CN103742786B (en) | Security system is clashed in motor liquified gas combustion gas | |
| CN205026397U (en) | Take liquefied natural gas supercharging device of plunger pump | |
| CN203686577U (en) | Liquefied gas and fuel gas impact safety system for vehicle | |
| CN203640656U (en) | Conical hole packer for gas drainage | |
| CN203271601U (en) | Coring drill rod with interlayer and drilling tool thereof | |
| CN207694126U (en) | A kind of simple conveying equipment of fire-fighting foams liquid | |
| WO2017084225A1 (en) | Cable-type static-pressure setting tool | |
| CN201787216U (en) | High-pressure explosion-proof pipe | |
| CN202048355U (en) | 720-type large-capacity high-pressure gas seamless gas bottle | |
| CN203809800U (en) | Safety protection device for natural gas compressor | |
| CN201771704U (en) | Pneumatic lipid gasoline pump | |
| CN204756446U (en) | Industrial gas furnace steady voltage pipe -line system | |
| CN201396540Y (en) | Gas fast joint | |
| CN203906415U (en) | Supercharger | |
| CN216113391U (en) | Multifunctional nitrogen making system | |
| CN203245159U (en) | Pneumatic pipe dredging device | |
| CN201401392Y (en) | Safety valve of hydrocylinder | |
| CN202777845U (en) | Explosion venting device for distilling column |
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 |