CN204220558U - The online purging system of oxygen regulating valve group - Google Patents
The online purging system of oxygen regulating valve group Download PDFInfo
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- CN204220558U CN204220558U CN201420643595.8U CN201420643595U CN204220558U CN 204220558 U CN204220558 U CN 204220558U CN 201420643595 U CN201420643595 U CN 201420643595U CN 204220558 U CN204220558 U CN 204220558U
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Abstract
The utility model discloses the online purging system of a kind of oxygen regulating valve group, this oxygen regulating valve group is arranged between oxygen system (10) and custom system (20), comprise the first oxygen special service valve (1), filter (12), oxygen regulating valve (11) and the second oxygen special service valve (2) that connect in turn, pipeline between first oxygen special service valve (1) and filter (12) is connected with scavenging pipeline, scavenging pipeline is connected with source purge gas (30), scavenging pipeline is provided with trioxid special service valve (3); Pipeline between oxygen regulating valve (11) and the second oxygen special service valve (2) is connected with and diffuses pipeline, diffuse pipeline to be connected with diffusion system (40), diffuse on pipeline and be provided with the 4th oxygen special service valve (4).Oxygen regulating valve group of the present utility model online purging system needs the loaded down with trivial details of manual connecting pipe and unsafe mode of operation when avoiding device in each maintenance pipeline, ensure that the security of production.
Description
Technical field
The utility model relates to a kind of purging system, particularly relates to the online purging system of a kind of oxygen regulating valve group.
Background technology
In the industrial production, oxygen is mainly used in realizing expection technique by oxidation reaction as a kind of oxidant, purposes comprises: the smelting, synthetic ammonia, coal liquefaction liquefaction, coal gasification, coal coke, olefin hydrocarbon making by coal, ammonia from coal etc. of iron and steel, be widely used in multiple fields such as metallurgy, chemical fertilizer, Coal Chemical Industry.Oxygen regulating valve group is mainly used in oxygen station and user side to the regulation and control of oxygen flow, pressure.Because oxygen has strong oxidizing property, hold fire hazardous, the security maintenance therefore for oxygen regulating valve group is very important.
Existing oxygen regulating valve group, when needs overhaul, has following two kinds of methods: the first starts bypass the stop valve of closing before and after control valve, directly dismantles valve, and by flange pressure release, in pipe, oxygen is all released indoor; The second starts bypass and the stop valve of closing before and after control valve, open atmospheric valve oxygen in pipe to be released to outdoor, then with flexible pipe, nitrogen is connected to the oxygen channel needing to purge, purge, flexible pipe is removed again, in order to avoid oxygen, nitrogen are ganged up mutually to making oxygen or nitrogen gas purity reduce after purging.
Above two kinds of methods all have open defect, first method obviously has potential safety hazard, and second method is too loaded down with trivial details, labour intensity is large, and one end that normal oxygen when producing, nitrogen purge valve connect flexible pipe is exposed to indoor, the interior leakage of valve is directly dispersed into indoor, still leaves potential safety hazard.
Summary of the invention
The purpose of this utility model is to provide a kind of online purging system of oxygen regulating valve group that can be used for device in safety inspection pipeline.
For achieving the above object, the concrete technical scheme of the online purging system of a kind of oxygen regulating valve group of the present utility model is:
The online purging system of a kind of oxygen regulating valve group, oxygen regulating valve group is arranged between oxygen system and custom system, comprise the first oxygen special service valve, filter, oxygen regulating valve and the second oxygen special service valve that connect in turn, pipeline between first oxygen special service valve and filter is connected with scavenging pipeline, scavenging pipeline is connected with source purge gas, and scavenging pipeline is provided with trioxid special service valve; Pipeline between oxygen regulating valve and the second oxygen special service valve is connected with and diffuses pipeline, diffuse pipeline and be connected with diffusion system, diffuse on pipeline and be provided with the 4th oxygen special service valve.
Further, scavenging pipeline is also provided with the first source of the gas stop valve, first source of the gas stop valve is arranged near source purge gas, trioxid special service valve is arranged near oxygen regulating valve group, pipeline between first source of the gas stop valve and trioxid special service valve is connected with interior fistulae road, interior fistulae road is connected with diffusion system, interior fistulae road is provided with the second source of the gas stop valve.
Further, the connecting line between the first source of the gas stop valve and the second source of the gas stop valve is provided with the Pressure gauge for detecting barometric information.
Further, also comprise oxygen regulating valve group for subsequent use, oxygen regulating valve group for subsequent use is arranged between oxygen system and custom system, is arranged in parallel with oxygen regulating valve group.
Further, oxygen regulating valve group for subsequent use comprises oxygen by-passing valve, and oxygen by-passing valve is arranged between oxygen system and custom system.
Further, oxygen regulating valve group for subsequent use comprises the 5th oxygen special service valve, reserve filter, oxygen regulating valve for subsequent use and the 6th oxygen special service valve that connect in turn.
Further, the pipeline between the 5th oxygen special service valve and reserve filter is connected with scavenging pipeline for subsequent use, and scavenging pipeline for subsequent use is connected with source purge gas, scavenging pipeline for subsequent use is provided with the 7th oxygen special service valve; Pipeline between oxygen regulating valve for subsequent use and the 6th oxygen special service valve is connected with and for subsequent usely diffuses pipeline, the pipeline that diffuses for subsequent use is connected with diffusion system, and for subsequent use diffusing on pipeline is provided with the 8th oxygen special service valve.
Further, scavenging pipeline for subsequent use is provided with the first source of the gas stop valve, first source of the gas stop valve is arranged near source purge gas, 7th oxygen special service valve is arranged near oxygen regulating valve group for subsequent use, pipeline between first source of the gas stop valve and the 7th oxygen special service valve is connected with interior fistulae road for subsequent use, interior fistulae road for subsequent use is connected with diffusion system, and interior fistulae road for subsequent use is provided with the second source of the gas stop valve.
Further, the connecting line between the first source of the gas stop valve and the second source of the gas stop valve is provided with the Pressure gauge for detecting barometric information.
Further, the connecting line between oxygen regulating valve group and custom system is provided with the Pressure gauge for detecting barometric information.
The advantage of the online purging system of oxygen regulating valve group of the present utility model is: achieve and carry out displacement purging with inert gas to oxygen therapy pipeline, prevent inert gas from leaking in oxygen or oxygen leaks in inert gas, the loaded down with trivial details of manual connecting pipe and unsafe mode of operation is needed when avoiding device in each maintenance pipeline, reduce the labour intensity of workman, ensure that the security of production.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment in the online purging system of oxygen regulating valve group of the present utility model;
Fig. 2 is the structural representation of the second embodiment in the online purging system of oxygen regulating valve group of the present utility model.
Detailed description of the invention
In order to better understand the purpose of this utility model, structure and function, below in conjunction with accompanying drawing, further detailed description is done to the online purging system of a kind of oxygen regulating valve group of the present utility model.
As depicted in figs. 1 and 2, the online purging system of oxygen regulating valve group of the present utility model is used for purging online oxygen regulating valve group when pipeline maintenance, wherein, oxygen regulating valve group is arranged between oxygen system 10 and custom system 20, oxygen therapy pipeline is provided with in oxygen regulating valve group, oxygen therapy pipeline comprises the first oxygen special service valve 1 connected in turn, filter 12, oxygen regulating valve 11 and the second oxygen special service valve 2, oxygen system 10 is successively by the first oxygen special service valve 1, filter 12, oxygen regulating valve 11 and the second oxygen special service valve 2 are to custom system 20 delivering oxygen.
Further, pipeline between first oxygen special service valve 1 and filter 12 is connected with scavenging pipeline, scavenging pipeline is connected with source purge gas 30, scavenging pipeline is provided with trioxid special service valve 3, source purge gas 30 is purged oxygen therapy pipeline by scavenging pipeline, and trioxid special service valve 3 controls for the keying of pipeline.Wherein, purge gas can select nitrogen or inert gas etc.
Further, pipeline between oxygen regulating valve 11 and the second oxygen special service valve 2 is connected with and diffuses pipeline, diffuse pipeline to be connected with diffusion system 40, diffusion system 40, for being diffused away by the gas in pipeline, diffuses on pipeline and is provided with the 4th oxygen special service valve 4.
In addition, it should be noted, the first oxygen special service valve 1, second oxygen special service valve 2, trioxid special service valve 3 and the 4th oxygen special service valve 4 in the utility model all can adopt the conventional valve body in this area, such as stop valve special for oxygen.
Further, scavenging pipeline is also provided with the first source of the gas stop valve 16, first source of the gas stop valve 16 is arranged near source purge gas 30, trioxid special service valve 3 is arranged near oxygen regulating valve group, pipeline between first source of the gas stop valve 16 and trioxid special service valve 3 is connected with interior fistulae road, interior fistulae road is connected with diffusion system 40, interior fistulae road is provided with the second source of the gas stop valve 17, the body that leaks gas in trioxid special service valve 3 and the first source of the gas stop valve 16 can be discharged into outdoor by diffusion system 40 by interior fistulae road, has ensured safety in production.
Further, the online purging system of oxygen regulating valve group also comprises oxygen regulating valve group for subsequent use, when the filter 12 in oxygen regulating valve group or oxygen regulating valve 11 overhaul, oxygen regulating valve group for subsequent use can be opened, oxygen regulating valve group for subsequent use is arranged between oxygen system 10 and custom system 20, and oxygen regulating valve group for subsequent use and oxygen regulating valve group are arranged in parallel.
Further, as shown in Figure 1, it is the first embodiment of the present utility model.In the present embodiment, oxygen therapy pipeline for subsequent use is provided with in oxygen regulating valve group for subsequent use, oxygen therapy pipeline for subsequent use comprises oxygen by-passing valve 15, oxygen by-passing valve 15 is arranged between oxygen system 10 and custom system 20, when curing by oxygen therapy pipeline internal filter 12 or oxygen regulating valve 11 needs to overhaul, open oxygen by-passing valve 15, close the first oxygen special service valve 1 and the second oxygen special service valve 2, oxygen in oxygen system 10 leads to custom system 20 by oxygen by-passing valve 15, can not interrupt to keep the work of curing by oxygen therapy normally.
Further, as shown in Figure 2, it is the second embodiment of the present utility model.In the present embodiment, oxygen therapy pipeline for subsequent use is provided with in oxygen regulating valve group for subsequent use, oxygen therapy pipeline for subsequent use comprises the 5th oxygen special service valve 5, reserve filter 14, oxygen regulating valve for subsequent use 13 and the 6th oxygen special service valve 6 that connect in turn, when the filter 12 in oxygen regulating valve group or oxygen regulating valve 11 need maintenance, open the 5th oxygen special service valve 5, oxygen regulating valve for subsequent use 13 and the 6th oxygen special service valve 6, close the first oxygen special service valve 1 and the second oxygen special service valve 2, oxygen system 10 by oxygen regulating valve group for subsequent use to custom system 20 oxygen transfer.It should be noted, in the utility model, the 5th oxygen special service valve 5 and the 6th oxygen special service valve 6 all can adopt conventional valve body, such as stop valve special for oxygen in this area.
Further, the pipeline between the 5th oxygen special service valve 5 and reserve filter 14 is connected with scavenging pipeline for subsequent use, and scavenging pipeline for subsequent use is connected with source purge gas 30, scavenging pipeline for subsequent use is provided with the 7th oxygen special service valve 7; Pipeline between oxygen regulating valve 13 for subsequent use and the 6th oxygen special service valve 6 connects and for subsequent usely diffuses pipeline, the pipeline that diffuses for subsequent use is connected with diffusion system 40, and for subsequent use diffusing on pipeline is provided with the 8th oxygen special service valve 8.It should be noted, in the utility model, the 7th oxygen special service valve 7 and the 8th oxygen special service valve 8 all can adopt conventional valve body, such as stop valve special for oxygen in this area.
Further, scavenging pipeline for subsequent use is also provided with the first source of the gas stop valve 16, first source of the gas stop valve 16 is arranged near source purge gas 30, 7th oxygen special service valve 7 is arranged near oxygen regulating valve group for subsequent use, pipeline between first source of the gas stop valve 16 and the 7th oxygen special service valve 7 is connected with interior fistulae road for subsequent use, interior fistulae road for subsequent use is connected with diffusion system 40, interior fistulae road for subsequent use is provided with the second source of the gas stop valve 17, the body that leaks gas in 7th oxygen special service valve 7 and the first source of the gas stop valve 16 can be discharged into outdoor by diffusion system 40 by interior fistulae road for subsequent use, ensure safety in production.
Further, the connecting line between oxygen regulating valve group and custom system 20 also can be provided with Pressure gauge 18, Pressure gauge 18 can be used for the barometric information detecting custom system 20.In addition, the connecting line between the first source of the gas stop valve 16 and the second source of the gas stop valve 17 also can be provided with Pressure gauge 19, Pressure gauge 19 can be used for the barometric information detecting scavenging pipeline.
Be described below in conjunction with the course of work of accompanying drawing to the online purging system of oxygen regulating valve group of the present utility model:
When device is normally produced, the first oxygen special service valve 1, second oxygen special service valve 2, oxygen regulating valve 11 and the second source of the gas stop valve 17 are all in opening, and all the other valves are all in closed condition.
In a first embodiment, when oxygen regulating valve group internal filter 12 or oxygen regulating valve 11 need maintenance.
First, open oxygen by-passing valve 15 in oxygen regulating valve group for subsequent use, oxygen system 10 inputs oxygen by oxygen regulating valve group for subsequent use to custom system 20, does not hinder normal oxygen therapy work, then closes the first oxygen special service valve 1 and the second oxygen special service valve 2 in oxygen regulating valve group.
Then, the opening degree of slow adjustment oxygen by-passing valve 15, when after pressure stability in regulating system, open trioxid special service valve 3 and the 4th oxygen special service valve 4, pressure release is carried out to the oxygen therapy pipeline in oxygen regulating valve group, observed the pressure release situation in pipeline by Pressure gauge 19, after pressure release, close the second source of the gas stop valve 17.
Then, open the first source of the gas stop valve 16 and carry out purging displacement to oxygen therapy pipeline, in oxygen therapy pipeline, blow nitrogen, gas is discharged into outdoor eventually through diffusion system 40.Wherein, by observing the reading of Pressure gauge 19 and Pressure gauge 18, noticing that the pressure of the first source of the gas stop valve 16 is not higher than the pressure of custom system 20, if the hypertonia of the first source of the gas stop valve 16, the first source of the gas stop valve 16 should be turned down timely.
Finally, after purging, first close the first source of the gas stop valve 16, then close trioxid special service valve 3 and the 4th oxygen special service valve 4, and open the second source of the gas stop valve 17, now can overhaul filter 12 and oxygen regulating valve 11.
In a second embodiment, when oxygen regulating valve group internal filter 12 or oxygen regulating valve 11 need maintenance.
First, open the 5th oxygen special service valve 5 in oxygen regulating valve group for subsequent use, oxygen regulating valve for subsequent use 13 and the 6th oxygen special service valve 6, oxygen system 10 inputs oxygen by oxygen regulating valve group for subsequent use to custom system 20, do not hinder normal oxygen therapy work, then close the first oxygen special service valve 1 and the second oxygen special service valve 2 in oxygen therapy pipeline.
Then, after oxygen therapy pipeline for subsequent use in oxygen regulating valve group for subsequent use is stable, open trioxid special service valve 3 and the 4th oxygen special service valve 4, pressure release is carried out to oxygen therapy pipeline, observe the pressure release situation in oxygen therapy pipeline by Pressure gauge 19, after pressure release, close the second source of the gas stop valve 17.
Then, open the first source of the gas stop valve 16 and carry out purging displacement to oxygen therapy pipeline, nitrogen blowing in oxygen therapy pipeline, gas is discharged into outdoor eventually through diffusion system 40.Wherein, by observing the reading of Pressure gauge 19 and Pressure gauge 18, noticing that the pressure of the first source of the gas stop valve 16 is not higher than the pressure of custom system 20, if the hypertonia of the first source of the gas stop valve 16, the first source of the gas stop valve 16 should be turned down timely.
Finally, after purging, first close the first source of the gas stop valve 16, then close trioxid special service valve 3 and the 4th oxygen special service valve 4, and open the second source of the gas stop valve 17, now can overhaul filter 12 and oxygen regulating valve 11.
In like manner, when the reserve filter 14 in the oxygen regulating valve group for subsequent use in the second embodiment or oxygen regulating valve for subsequent use 13 need maintenance, aforesaid way also can be adopted to purge, and detailed process see description above, can repeat no more herein.
The online purging system of oxygen regulating valve group of the present utility model, achieve, with inert gas, displacement purging is carried out to oxygen therapy pipeline, prevent inert gas from leaking in oxygen or oxygen leaks in inert gas, the loaded down with trivial details of manual connecting pipe and unsafe mode of operation is needed when avoiding device in each maintenance pipeline, reduce the labour intensity of workman, ensure that the security of production.
By specific embodiment, the utility model is further described above; but it should be understood that; here concrete description; should not be construed as the restriction to essence of the present utility model and scope; one of ordinary skilled in the art to the various amendments that above-described embodiment is made, belongs to the scope that the utility model is protected after reading this specification.
Claims (10)
1. the online purging system of oxygen regulating valve group, oxygen regulating valve group is arranged between oxygen system (10) and custom system (20), comprise the first oxygen special service valve (1), filter (12), oxygen regulating valve (11) and the second oxygen special service valve (2) that connect in turn, it is characterized in that, pipeline between first oxygen special service valve (1) and filter (12) is connected with scavenging pipeline, scavenging pipeline is connected with source purge gas (30), scavenging pipeline is provided with trioxid special service valve (3); Pipeline between oxygen regulating valve (11) and the second oxygen special service valve (2) is connected with and diffuses pipeline, diffuse pipeline to be connected with diffusion system (40), diffuse on pipeline and be provided with the 4th oxygen special service valve (4).
2. the online purging system of oxygen regulating valve group according to claim 1, it is characterized in that, scavenging pipeline is also provided with the first source of the gas stop valve (16), first source of the gas stop valve (16) is arranged near source purge gas (30), trioxid special service valve (3) is arranged near oxygen regulating valve group, pipeline between first source of the gas stop valve (16) and trioxid special service valve (3) is connected with interior fistulae road, interior fistulae road is connected with diffusion system (40), interior fistulae road is provided with the second source of the gas stop valve (17).
3. the online purging system of oxygen regulating valve group according to claim 2, it is characterized in that, the connecting line between the first source of the gas stop valve (16) and the second source of the gas stop valve (17) being provided with the Pressure gauge (19) for detecting barometric information.
4. the online purging system of oxygen regulating valve group according to claim 1 and 2, it is characterized in that, also comprise oxygen regulating valve group for subsequent use, oxygen regulating valve group for subsequent use is arranged between oxygen system (10) and custom system (20), is arranged in parallel with oxygen regulating valve group.
5. the online purging system of oxygen regulating valve group according to claim 4, it is characterized in that, oxygen regulating valve group for subsequent use comprises oxygen by-passing valve (15), and oxygen by-passing valve (15) is arranged between oxygen system (10) and custom system (20).
6. the online purging system of oxygen regulating valve group according to claim 4, it is characterized in that, oxygen regulating valve group for subsequent use comprises the 5th oxygen special service valve (5), reserve filter (14), oxygen regulating valve for subsequent use (13) and the 6th oxygen special service valve (6) that connect in turn.
7. the online purging system of oxygen regulating valve group according to claim 6, it is characterized in that, pipeline between 5th oxygen special service valve (5) and reserve filter (14) is connected with scavenging pipeline for subsequent use, scavenging pipeline for subsequent use is connected with source purge gas (30), scavenging pipeline for subsequent use is provided with the 7th oxygen special service valve (7); Pipeline between oxygen regulating valve for subsequent use (13) and the 6th oxygen special service valve (6) is connected with and for subsequent usely diffuses pipeline, the pipeline that diffuses for subsequent use is connected with diffusion system (40), and for subsequent use diffusing on pipeline is provided with the 8th oxygen special service valve (8).
8. the online purging system of oxygen regulating valve group according to claim 7, it is characterized in that, scavenging pipeline for subsequent use is provided with the first source of the gas stop valve (16), first source of the gas stop valve (16) is arranged near source purge gas (30), 7th oxygen special service valve (7) is arranged near oxygen regulating valve group for subsequent use, pipeline between first source of the gas stop valve (16) and the 7th oxygen special service valve (7) is connected with interior fistulae road for subsequent use, interior fistulae road for subsequent use is connected with diffusion system (40), interior fistulae road for subsequent use is provided with the second source of the gas stop valve (17).
9. the online purging system of oxygen regulating valve group according to claim 8, it is characterized in that, the connecting line between the first source of the gas stop valve (16) and the second source of the gas stop valve (17) being provided with the Pressure gauge (19) for detecting barometric information.
10. the online purging system of oxygen regulating valve group according to claim 1, is characterized in that, the connecting line between oxygen regulating valve group and custom system (20) is provided with the Pressure gauge (18) for detecting barometric information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420643595.8U CN204220558U (en) | 2014-11-02 | 2014-11-02 | The online purging system of oxygen regulating valve group |
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| CN201420643595.8U CN204220558U (en) | 2014-11-02 | 2014-11-02 | The online purging system of oxygen regulating valve group |
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| CN204220558U true CN204220558U (en) | 2015-03-25 |
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| CN201420643595.8U Active CN204220558U (en) | 2014-11-02 | 2014-11-02 | The online purging system of oxygen regulating valve group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990201A (en) * | 2019-04-10 | 2019-07-09 | 中韩(武汉)石油化工有限公司 | A kind of catalyst and propylene online mixer anti-blockage method |
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2014
- 2014-11-02 CN CN201420643595.8U patent/CN204220558U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990201A (en) * | 2019-04-10 | 2019-07-09 | 中韩(武汉)石油化工有限公司 | A kind of catalyst and propylene online mixer anti-blockage method |
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