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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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 251
- 239000001301 oxygen Substances 0.000 title claims abstract description 251
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 251
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 100
- 238000010926 purge Methods 0.000 title claims abstract description 73
- 239000007789 gas Substances 0.000 claims abstract description 62
- 230000002000 scavenging effect Effects 0.000 claims 8
- 238000009792 diffusion process Methods 0.000 claims 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 239000011261 inert gas Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000003245 coal Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Pipeline Systems (AREA)
Abstract
本实用新型公开了一种氧气调节阀组在线吹扫系统，该氧气调节阀组设置在供氧系统(10)与用户系统(20)之间，包括顺次连接的第一氧气专用阀(1)、过滤器(12)、氧气调节阀(11)和第二氧气专用阀(2)，第一氧气专用阀(1)和过滤器(12)之间的管道上连接有吹扫管路，吹扫管路与吹扫气源(30)相连通，吹扫管路上设置有第三氧气专用阀(3)；氧气调节阀(11)和第二氧气专用阀(2)之间的管路上连接有放散管路，放散管路与放散系统(40)相连通，放散管路上设置有第四氧气专用阀(4)。本实用新型的氧气调节阀组在线吹扫系统避免了每次维修管道内装置时需要手动连接管道的繁琐与不安全的操作方式，保证了生产的安全性。
The utility model discloses an online purging system of an oxygen regulating valve group. The oxygen regulating valve group is arranged between an oxygen supply system (10) and a user system (20), and includes sequentially connected first special oxygen valves (1 ), filter (12), oxygen regulating valve (11) and the second oxygen dedicated valve (2), the pipeline between the first oxygen dedicated valve (1) and the filter (12) is connected with a purge pipeline, The purge pipeline is connected with the purge gas source (30), and a third oxygen-specific valve (3) is arranged on the purge pipeline; on the pipeline between the oxygen regulating valve (11) and the second oxygen-specific valve (2), A release pipeline is connected, and the release pipeline communicates with the release system (40), and a fourth oxygen special valve (4) is arranged on the release pipeline. The online purging system of the oxygen regulating valve group of the utility model avoids the cumbersome and unsafe operation mode of manually connecting the pipelines every time the device in the pipeline is maintained, and ensures the safety of production.
Description
技术领域technical field
本实用新型涉及一种吹扫系统，尤其涉及一种氧气调节阀组在线吹扫系统。The utility model relates to a purging system, in particular to an online purging system for an oxygen regulating valve group.
背景技术Background technique
在工业生产中，氧气作为一种氧化剂主要用于通过氧化反应实现预期工艺，用途包括：钢铁的冶炼、合成氨、煤液化制油、煤气化、煤制焦炭、煤制烯烃、煤制甲醇等，广泛应用于冶金、化肥、煤化工等多个领域。氧气调节阀组主要用于氧气站和用户端对氧气流量、压力的调节和控制。由于氧气具有强氧化性，容易引起火灾，因此对于氧气调节阀组的安全维护十分重要。In industrial production, oxygen as an oxidizing agent is mainly used to realize the expected process through oxidation reaction, and its uses include: iron and steel smelting, synthetic ammonia, coal liquefaction to oil, coal gasification, coal to coke, coal to olefins, coal to methanol, etc. Widely used in metallurgy, fertilizer, coal chemical industry and other fields. The oxygen regulating valve group is mainly used for the adjustment and control of the oxygen flow and pressure at the oxygen station and the user end. Because oxygen has strong oxidizing properties, it is easy to cause fire, so it is very important for the safe maintenance of oxygen regulating valve group.
现有的氧气调节阀组在需要检修时，有以下两种方法：第一种是启动旁路并关闭调节阀前后的切断阀，直接拆卸阀门，通过法兰泄压，管内氧气全部泄放到室内；第二种是启动旁路并关闭调节阀前后的切断阀，打开放空阀将管内氧气泄放到室外，然后用软管将氮气接至需要吹扫的氧气管道，进行吹扫，吹扫完毕后再拆除软管，以免氧气、氮气互相串通至使氧气或氮气纯度降低。When the existing oxygen regulating valve group needs to be overhauled, there are the following two methods: the first is to start the bypass and close the shut-off valves before and after the regulating valve, directly disassemble the valve, release the pressure through the flange, and release all the oxygen in the pipe to the Indoor; the second is to start the bypass and close the shut-off valves before and after the regulating valve, open the vent valve to release the oxygen in the pipe to the outside, and then use a hose to connect the nitrogen to the oxygen pipe that needs to be purged for purging. Remove the hose after completion to prevent oxygen and nitrogen from colluding with each other to reduce the purity of oxygen or nitrogen.
以上两种方法都具有明显缺陷，第一种方法明显有安全隐患，第二种方法过于繁琐、劳动强度大，且正常生产时氧气、氮气吹扫阀接软管的一端暴露在室内，阀门的内漏直接散发到室内，仍然留有安全隐患。Both of the above two methods have obvious defects. The first method obviously has potential safety hazards. The second method is too cumbersome and labor-intensive, and one end of the oxygen and nitrogen purge valve connected to the hose is exposed indoors during normal production. The internal leakage is directly emitted into the room, which still leaves potential safety hazards.
发明内容Contents of the invention
本实用新型的目的在于提供一种可用于安全检修管道内装置的氧气调节阀组在线吹扫系统。The purpose of the utility model is to provide an online purging system for an oxygen regulating valve group that can be used for safe inspection and maintenance of devices in pipelines.
为实现上述目的，本实用新型的一种氧气调节阀组在线吹扫系统的具体技术方案为：In order to achieve the above purpose, the specific technical scheme of an oxygen regulating valve group online purge system of the utility model is as follows:
一种氧气调节阀组在线吹扫系统，氧气调节阀组设置在供氧系统与用户系统之间，包括顺次连接的第一氧气专用阀、过滤器、氧气调节阀和第二氧气专用阀，第一氧气专用阀和过滤器之间的管道上连接有吹扫管路，吹扫管路与吹扫气源相连通，吹扫管路上设置有第三氧气专用阀；氧气调节阀和第二氧气专用阀之间的管路上连接有放散管路，放散管路与放散系统相连通，放散管路上设置有第四氧气专用阀。An oxygen regulating valve group online purging system, the oxygen regulating valve group is arranged between the oxygen supply system and the user system, including a first oxygen-specific valve, a filter, an oxygen-regulating valve and a second oxygen-specific valve connected in sequence, The pipeline between the first oxygen special valve and the filter is connected with a purge pipeline, and the purge pipeline is connected with the purge gas source, and the third oxygen special valve is arranged on the purge pipeline; the oxygen regulating valve and the second The pipeline between the oxygen special valves is connected with a release pipeline, and the release pipeline is connected with the release system, and the fourth oxygen special valve is arranged on the release pipeline.
进一步，吹扫管路上还设置有第一气源切断阀，第一气源切断阀靠近吹扫气源设置，第三氧气专用阀靠近氧气调节阀组设置，第一气源切断阀与第三氧气专用阀之间的管道上连接有内漏管路，内漏管路与放散系统相连通，内漏管路上设置有第二气源切断阀。Further, a first gas source shut-off valve is also set on the purge pipeline, the first gas source shut-off valve is set close to the purge gas source, the third oxygen special valve is set close to the oxygen regulating valve group, the first gas source shut-off valve and the third The pipeline between the oxygen special valves is connected with an internal leakage pipeline, and the internal leakage pipeline is connected with the release system, and a second gas source cut-off valve is arranged on the internal leakage pipeline.
进一步，第一气源切断阀与第二气源切断阀之间的连接管路上设置有用于检测气压情况的压力表。Further, a pressure gauge for detecting the air pressure is installed on the connecting pipeline between the first air source cut-off valve and the second air source cut-off valve.
进一步，还包括备用氧气调节阀组，备用氧气调节阀组设置在供氧系统与用户系统之间，与氧气调节阀组并联设置。Further, a spare oxygen regulating valve group is also included, and the spare oxygen regulating valve group is arranged between the oxygen supply system and the user system, and is arranged in parallel with the oxygen regulating valve group.
进一步，备用氧气调节阀组包括氧气旁通阀，氧气旁通阀设置在供氧系统与用户系统之间。Further, the standby oxygen regulating valve group includes an oxygen bypass valve, and the oxygen bypass valve is arranged between the oxygen supply system and the user system.
进一步，备用氧气调节阀组包括顺次连接的第五氧气专用阀、备用过滤器、备用氧气调节阀和第六氧气专用阀。Further, the spare oxygen regulating valve group includes a fifth dedicated oxygen valve, a spare filter, a spare oxygen regulating valve and a sixth dedicated oxygen valve connected in sequence.
进一步，第五氧气专用阀和备用过滤器之间的管道上连接有备用吹扫管路，备用吹扫管路与吹扫气源相连通，备用吹扫管路上设置有第七氧气专用阀；备用氧气调节阀和第六氧气专用阀之间的管路上连接有备用放散管路，备用放散管路与放散系统相连通，备用放散管路上设置有第八氧气专用阀。Further, a spare purge pipeline is connected to the pipeline between the fifth oxygen special valve and the spare filter, the spare purge pipeline is connected to the purge gas source, and the seventh oxygen special valve is arranged on the spare purge pipeline; The pipeline between the standby oxygen regulating valve and the sixth oxygen special valve is connected with a spare release pipeline, which is connected with the release system, and the standby release pipeline is provided with an eighth oxygen special valve.
进一步，备用吹扫管路上设置有第一气源切断阀，第一气源切断阀靠近吹扫气源设置，第七氧气专用阀靠近备用氧气调节阀组设置，第一气源切断阀与第七氧气专用阀之间的管道上连接有备用内漏管路，备用内漏管路与放散系统相连通，备用内漏管路上设置有第二气源切断阀。Further, a first gas source cut-off valve is set on the backup purge pipeline, the first gas source cut-off valve is set close to the purge gas source, the seventh oxygen special valve is set close to the backup oxygen regulating valve group, the first gas source cut-off valve and the second The pipeline between the seven oxygen special valves is connected with a spare internal leakage pipeline, which is connected with the release system, and a second gas source cut-off valve is arranged on the standby internal leakage pipeline.
进一步，第一气源切断阀与第二气源切断阀之间的连接管路上设置有用于检测气压情况的压力表。Further, a pressure gauge for detecting the air pressure is installed on the connecting pipeline between the first air source cut-off valve and the second air source cut-off valve.
进一步，氧气调节阀组与用户系统之间的连接管路上设置有用于检测气压情况的压力表。Further, a pressure gauge for detecting air pressure is installed on the connecting pipeline between the oxygen regulating valve group and the user system.
本实用新型的氧气调节阀组在线吹扫系统的优点在于：实现了用惰性气体对输氧管路进行置换吹扫，防止惰性气体渗漏到氧气中或氧气渗漏到惰性气体中，避免了每次维修管道内装置时需要手动连接管道的繁琐与不安全的操作方式，降低了工人的劳动强度，保证了生产的安全性。The advantage of the online purging system for the oxygen regulating valve group of the utility model is that: it realizes the replacement and purging of the oxygen pipeline with inert gas, prevents the inert gas from leaking into the oxygen or the oxygen from leaking into the inert gas, and avoids every The cumbersome and unsafe operation method of manually connecting the pipes when repairing the devices in the pipes reduces the labor intensity of workers and ensures the safety of production.
附图说明Description of drawings
图1为本实用新型的氧气调节阀组在线吹扫系统中第一实施例的结构示意图；Fig. 1 is the structural schematic diagram of the first embodiment in the online purging system of the oxygen regulating valve group of the present invention;
图2为本实用新型的氧气调节阀组在线吹扫系统中第二实施例的结构示意图。Fig. 2 is a schematic structural diagram of the second embodiment of the online purging system of the oxygen regulating valve group of the present invention.
具体实施方式Detailed ways
为了更好的了解本实用新型的目的、结构及功能，下面结合附图，对本实用新型的一种氧气调节阀组在线吹扫系统做进一步详细的描述。In order to better understand the purpose, structure and function of the utility model, an online purging system for an oxygen regulating valve group of the utility model will be further described in detail below in conjunction with the accompanying drawings.
如图1和图2所示，本实用新型的氧气调节阀组在线吹扫系统用于在管道维修时对氧气调节阀组进行在线吹扫，其中，氧气调节阀组设置在供氧系统10与用户系统20之间，氧气调节阀组内设有输氧管路，输氧管路包括顺次连接的第一氧气专用阀1、过滤器12、氧气调节阀11和第二氧气专用阀2，供氧系统10依次通过第一氧气专用阀1、过滤器12、氧气调节阀11和第二氧气专用阀2向用户系统20输送氧气。As shown in Fig. 1 and Fig. 2, the oxygen regulating valve group online purge system of the present invention is used for online purging of the oxygen regulating valve group during pipeline maintenance, wherein the oxygen regulating valve group is arranged between the oxygen supply system 10 and Between the user systems 20, an oxygen delivery pipeline is provided in the oxygen regulating valve group, and the oxygen delivery pipeline includes a first dedicated oxygen valve 1, a filter 12, an oxygen regulating valve 11 and a second dedicated oxygen valve 2 connected in sequence to supply oxygen The system 10 delivers oxygen to the user system 20 through the first oxygen dedicated valve 1 , the filter 12 , the oxygen regulating valve 11 and the second oxygen dedicated valve 2 in sequence.
进一步，第一氧气专用阀1和过滤器12之间的管道上连接有吹扫管路，吹扫管路与吹扫气源30相连通，吹扫管路上设置有第三氧气专用阀3，吹扫气源30通过吹扫管路对输氧管路进行吹扫，第三氧气专用阀3用于管路的启闭控制。其中，吹扫气体可选用氮气或惰性气体等。Further, the pipeline between the first oxygen dedicated valve 1 and the filter 12 is connected with a purge pipeline, the purge pipeline communicates with the purge gas source 30, and the third oxygen dedicated valve 3 is arranged on the purge pipeline, The purge gas source 30 purges the oxygen delivery pipeline through the purge pipeline, and the third dedicated oxygen valve 3 is used for opening and closing control of the pipeline. Wherein, nitrogen or inert gas can be used as the purge gas.
进一步，氧气调节阀11和第二氧气专用阀2之间的管路上连接有放散管路，放散管路与放散系统40相连通，放散系统40用于将管道内的气体放散出去，放散管路上设置有第四氧气专用阀4。Further, the pipeline between the oxygen regulating valve 11 and the second oxygen-only valve 2 is connected with a release pipeline, and the release pipeline communicates with the release system 40, and the release system 40 is used to release the gas in the pipeline. A fourth oxygen dedicated valve 4 is provided.
此外，应注意的是，本实用新型中的第一氧气专用阀1、第二氧气专用阀2、第三氧气专用阀3和第四氧气专用阀4均可采用本领域中的常规阀体，例如氧气专用截止阀。In addition, it should be noted that the first oxygen-specific valve 1, the second oxygen-specific valve 2, the third oxygen-specific valve 3 and the fourth oxygen-specific valve 4 in the utility model can all adopt conventional valve bodies in the field, For example, a special shut-off valve for oxygen.
进一步，吹扫管路上还设置有第一气源切断阀16，第一气源切断阀16靠近吹扫气源30设置，第三氧气专用阀3靠近氧气调节阀组设置，第一气源切断阀16与第三氧气专用阀3之间的管道上连接有内漏管路，内漏管路与放散系统40相连通，内漏管路上设置有第二气源切断阀17，内漏管路可将第三氧气专用阀3和第一气源切断阀16的内漏气体通过放散系统40释放到室外，保障了安全生产。Further, a first gas source cut-off valve 16 is also set on the purge pipeline, the first gas source cut-off valve 16 is set close to the purge gas source 30, the third oxygen special valve 3 is set close to the oxygen regulating valve group, and the first gas source is cut off. The pipeline between the valve 16 and the third oxygen-only valve 3 is connected with an internal leakage pipeline, and the internal leakage pipeline is connected with the release system 40. The internal leakage pipeline is provided with a second gas source shut-off valve 17, and the internal leakage pipeline The internal leakage gas of the third oxygen-only valve 3 and the first gas source shut-off valve 16 can be released to the outside through the release system 40, ensuring safe production.
进一步，氧气调节阀组在线吹扫系统还包括备用氧气调节阀组，当氧气调节阀组内的过滤器12或氧气调节阀11检修时，可开启备用氧气调节阀组，备用氧气调节阀组设置在供氧系统10与用户系统20之间，备用氧气调节阀组与氧气调节阀组并联设置。Further, the online purging system of the oxygen regulating valve group also includes a spare oxygen regulating valve group. When the filter 12 or the oxygen regulating valve 11 in the oxygen regulating valve group is overhauled, the spare oxygen regulating valve group can be opened, and the spare oxygen regulating valve group is set Between the oxygen supply system 10 and the user system 20, a spare oxygen regulating valve group is arranged in parallel with the oxygen regulating valve group.
进一步，如图1所示，其为本实用新型的第一实施例。本实施例中，备用氧气调节阀组内设有备用输氧管路，备用输氧管路包括氧气旁通阀15，氧气旁通阀15设置在供氧系统10与用户系统20之间，当输氧管路内过滤器12或氧气调节阀11需要检修时，开启氧气旁通阀15，关闭第一氧气专用阀1和第二氧气专用阀2，供氧系统10内的氧气可通过氧气旁通阀15通向用户系统20，以保持正常的输氧工作不会中断。Further, as shown in FIG. 1 , it is the first embodiment of the present utility model. In this embodiment, a spare oxygen delivery pipeline is provided in the spare oxygen regulating valve group, and the spare oxygen delivery pipeline includes an oxygen bypass valve 15, and the oxygen bypass valve 15 is arranged between the oxygen supply system 10 and the user system 20. When the in-circuit filter 12 or the oxygen regulating valve 11 needs to be overhauled, open the oxygen bypass valve 15, close the first oxygen dedicated valve 1 and the second oxygen dedicated valve 2, and the oxygen in the oxygen supply system 10 can pass through the oxygen bypass valve 15 Lead to the user system 20, so that the normal oxygen delivery work will not be interrupted.
进一步，如图2所示，其为本实用新型的第二实施例。本实施例中，备用氧气调节阀组内设有备用输氧管路，备用输氧管路包括顺次连接的第五氧气专用阀5、备用过滤器14、备用氧气调节阀13和第六氧气专用阀6，当氧气调节阀组内的过滤器12或氧气调节阀11需要检修时，打开第五氧气专用阀5、备用氧气调节阀13和第六氧气专用阀6，关闭第一氧气专用阀1和第二氧气专用阀2，供氧系统10通过备用氧气调节阀组向用户系统20输氧气。应注意的是，本实用新型中，第五氧气专用阀5和第六氧气专用阀6均可采用本领域中常规阀体，例如氧气专用截止阀。Further, as shown in FIG. 2 , it is the second embodiment of the present invention. In this embodiment, a spare oxygen delivery pipeline is provided in the spare oxygen regulating valve group, and the spare oxygen supply pipeline includes the fifth dedicated oxygen valve 5, the spare filter 14, the spare oxygen regulating valve 13 and the sixth dedicated oxygen valve connected in sequence 6. When the filter 12 or the oxygen regulating valve 11 in the oxygen regulating valve group needs to be overhauled, open the fifth special oxygen valve 5, the spare oxygen regulating valve 13 and the sixth special oxygen valve 6, close the first special oxygen valve 1 and The second dedicated oxygen valve 2, the oxygen supply system 10 supplies oxygen to the user system 20 through the spare oxygen regulating valve group. It should be noted that, in the present utility model, the fifth oxygen-only valve 5 and the sixth oxygen-only valve 6 can adopt conventional valve bodies in the field, such as oxygen-only shut-off valves.
进一步，第五氧气专用阀5和备用过滤器14之间的管道上连接有备用吹扫管路，备用吹扫管路与吹扫气源30相连通，备用吹扫管路上设置有第七氧气专用阀7；备用氧气调节阀13和第六氧气专用阀6之间的管路上连接备用放散管路，备用放散管路与放散系统40相连通，备用放散管路上设置有第八氧气专用阀8。应注意的是，本实用新型中，第七氧气专用阀7和第八氧气专用阀8均可采用本领域中常规阀体，例如氧气专用截止阀。Further, a spare purge line is connected to the pipeline between the fifth oxygen-only valve 5 and the spare filter 14, the spare purge line communicates with the purge gas source 30, and a seventh oxygen gas is provided on the spare purge line. Special valve 7; a standby release pipeline is connected to the pipeline between the standby oxygen regulating valve 13 and the sixth oxygen special valve 6, the standby release pipeline is connected with the release system 40, and the eighth oxygen special valve 8 is arranged on the standby release pipeline . It should be noted that, in the present utility model, both the seventh oxygen-only valve 7 and the eighth oxygen-only valve 8 can adopt conventional valve bodies in the field, such as oxygen-only shut-off valves.
进一步，备用吹扫管路上还设置有第一气源切断阀16，第一气源切断阀16靠近吹扫气源30设置，第七氧气专用阀7靠近备用氧气调节阀组设置，第一气源切断阀16与第七氧气专用阀7之间的管道上连接有备用内漏管路，备用内漏管路与放散系统40相连通，备用内漏管路上设置有第二气源切断阀17，备用内漏管路可将第七氧气专用阀7和第一气源切断阀16的内漏气体通过放散系统40释放到室外，保障了安全生产。Further, a first gas source shut-off valve 16 is also set on the spare purge pipeline, the first gas source shut-off valve 16 is set close to the purge gas source 30, the seventh oxygen special valve 7 is set close to the spare oxygen regulating valve group, the first gas The pipeline between the source shut-off valve 16 and the seventh oxygen-only valve 7 is connected with a spare internal leakage pipeline, which communicates with the release system 40, and a second gas source shut-off valve 17 is arranged on the standby internal leakage pipeline. , the spare internal leakage pipeline can release the internal leakage gas of the seventh oxygen dedicated valve 7 and the first gas source shut-off valve 16 to the outside through the release system 40, ensuring safe production.
进一步，氧气调节阀组与用户系统20之间的连接管路上还可设置有压力表18，压力表18可用于检测用户系统20的气压情况。此外，第一气源切断阀16与第二气源切断阀17之间的连接管路上也可设置有压力表19，压力表19可用于检测吹扫管路的气压情况。Further, a pressure gauge 18 may also be provided on the connecting pipeline between the oxygen regulating valve group and the user system 20 , and the pressure gauge 18 may be used to detect the air pressure of the user system 20 . In addition, a pressure gauge 19 may also be provided on the connecting pipeline between the first gas source shutoff valve 16 and the second gas source shutoff valve 17, and the pressure gauge 19 may be used to detect the air pressure of the purge pipeline.
下面结合附图对本实用新型的氧气调节阀组在线吹扫系统的工作过程进行描述：The following describes the working process of the oxygen regulating valve group online purge system of the present invention in conjunction with the accompanying drawings:
在装置正常生产时，第一氧气专用阀1、第二氧气专用阀2、氧气调节阀11和第二气源切断阀17均处于开启状态，其余阀门均处于关闭状态。When the device is in normal production, the first oxygen dedicated valve 1, the second oxygen dedicated valve 2, the oxygen regulating valve 11 and the second gas source cut-off valve 17 are all in the open state, and the rest of the valves are in the closed state.
在第一实施例中，当氧气调节阀组内过滤器12或氧气调节阀11需要检修时。In the first embodiment, when the filter 12 or the oxygen regulating valve 11 in the oxygen regulating valve group needs to be overhauled.
首先，开启备用氧气调节阀组内氧气旁通阀15，供氧系统10通过备用氧气调节阀组向用户系统20输入氧气，不妨碍正常输氧工作，然后关闭氧气调节阀组内第一氧气专用阀1和第二氧气专用阀2。First, open the oxygen bypass valve 15 in the spare oxygen regulating valve group, and the oxygen supply system 10 will input oxygen to the user system 20 through the spare oxygen regulating valve group, so as not to hinder the normal oxygen delivery work, and then close the first dedicated oxygen valve in the oxygen regulating valve group 1 and the second oxygen-only valve 2.
然后，缓慢调节氧气旁通阀15的打开程度，当调节系统内压力稳定后，开启第三氧气专用阀3和第四氧气专用阀4，对氧气调节阀组内的输氧管路进行泄压，通过压力表19观察管道内的泄压情况，泄压完毕后关闭第二气源切断阀17。Then, slowly adjust the opening degree of the oxygen bypass valve 15, and when the pressure in the adjustment system is stable, open the third oxygen-specific valve 3 and the fourth oxygen-specific valve 4 to release the pressure of the oxygen delivery pipeline in the oxygen regulating valve group, Observe the pressure relief situation in the pipeline through the pressure gauge 19, and close the second air source shut-off valve 17 after the pressure relief is completed.
接着，开启第一气源切断阀16对输氧管路进行吹扫置换，向输氧管路内吹送氮气，气体最终通过放散系统40释放到室外。其中，通过观察压力表19和压力表18的读数，注意第一气源切断阀16的压力不要高于用户系统20的压力，如果第一气源切断阀16的压力过高，应及时的关小第一气源切断阀16。Next, the first gas source shut-off valve 16 is opened to purge and replace the oxygen delivery pipeline, nitrogen is blown into the oxygen delivery pipeline, and the gas is finally released to the outside through the release system 40 . Among them, by observing the readings of the pressure gauge 19 and the pressure gauge 18, pay attention that the pressure of the first air source shut-off valve 16 should not be higher than the pressure of the user system 20. If the pressure of the first air source shut-off valve 16 is too high, it should be closed in time. Small first gas source cut-off valve 16.
最后，吹扫完毕后，先关闭第一气源切断阀16，再关闭第三氧气专用阀3和第四氧气专用阀4，并开启第二气源切断阀17，此时可对过滤器12和氧气调节阀11进行检修。Finally, after the purging is completed, first close the first gas source shut-off valve 16, then close the third oxygen dedicated valve 3 and the fourth oxygen dedicated valve 4, and open the second gas source shut-off valve 17. At this time, the filter 12 And the oxygen regulating valve 11 is overhauled.
在第二实施例中，当氧气调节阀组内过滤器12或氧气调节阀11需要检修时。In the second embodiment, when the filter 12 or the oxygen regulating valve 11 in the oxygen regulating valve group needs to be overhauled.
首先，开启备用氧气调节阀组内第五氧气专用阀5、备用氧气调节阀13和第六氧气专用阀6，供氧系统10通过备用氧气调节阀组向用户系统20输入氧气，不妨碍正常输氧工作，然后关闭输氧管路内第一氧气专用阀1和第二氧气专用阀2。First, open the fifth dedicated oxygen valve 5, the spare oxygen regulating valve 13 and the sixth dedicated oxygen valve 6 in the spare oxygen regulating valve group, and the oxygen supply system 10 will input oxygen to the user system 20 through the spare oxygen regulating valve group without hindering the normal oxygen delivery. Work, then close the first oxygen dedicated valve 1 and the second oxygen dedicated valve 2 in the oxygen pipeline.
然后，当备用氧气调节阀组内备用输氧管路运行稳定后，开启第三氧气专用阀3和第四氧气专用阀4，对输氧管路进行泄压，通过压力表19观察输氧管路内的泄压情况，泄压完毕后关闭第二气源切断阀17。Then, after the standby oxygen delivery pipeline in the standby oxygen regulating valve group runs stably, open the third oxygen dedicated valve 3 and the fourth oxygen dedicated valve 4 to release the pressure of the oxygen delivery pipeline, and observe the pressure in the oxygen delivery pipeline through a pressure gauge 19. In the case of pressure relief, close the second gas source shut-off valve 17 after the pressure relief is completed.
接着，开启第一气源切断阀16对输氧管路进行吹扫置换，向输氧管路内吹氮气，气体最终通过放散系统40释放到室外。其中，通过观察压力表19和压力表18的读数，注意第一气源切断阀16的压力不要高于用户系统20的压力，如果第一气源切断阀16的压力过高，应及时的关小第一气源切断阀16。Next, the first gas source shut-off valve 16 is opened to purge and replace the oxygen delivery pipeline, nitrogen is blown into the oxygen delivery pipeline, and the gas is finally released to the outside through the release system 40 . Among them, by observing the readings of the pressure gauge 19 and the pressure gauge 18, pay attention that the pressure of the first air source shut-off valve 16 should not be higher than the pressure of the user system 20. If the pressure of the first air source shut-off valve 16 is too high, it should be closed in time. Small first gas source cut-off valve 16.
最后，吹扫完毕后，先关闭第一气源切断阀16，再关闭第三氧气专用阀3和第四氧气专用阀4，并开启第二气源切断阀17，此时可对过滤器12和氧气调节阀11进行检修。Finally, after the purging is completed, first close the first gas source shut-off valve 16, then close the third oxygen dedicated valve 3 and the fourth oxygen dedicated valve 4, and open the second gas source shut-off valve 17. At this time, the filter 12 And the oxygen regulating valve 11 is overhauled.
同理，当第二实施例中的备用氧气调节阀组内的备用过滤器14或备用氧气调节阀13需要检修时，也可以采用上述方式进行吹扫，具体过程可参见上面的描述，此处不再赘述。Similarly, when the spare filter 14 or spare oxygen regulating valve 13 in the spare oxygen regulating valve group in the second embodiment needs to be overhauled, the above method can also be used for purging, the specific process can be found in the above description, here No longer.
本实用新型的氧气调节阀组在线吹扫系统，实现了用惰性气体对输氧管路进行置换吹扫，防止惰性气体渗漏到氧气中或氧气渗漏到惰性气体中，避免了每次维修管道内装置时需要手动连接管道的繁琐与不安全的操作方式，降低了工人的劳动强度，保证了生产的安全性。The online purge system of the oxygen regulating valve group of the utility model realizes the replacement and purge of the oxygen delivery pipeline with inert gas, prevents the inert gas from leaking into the oxygen or the oxygen from leaking into the inert gas, and avoids the maintenance of the pipeline every time The cumbersome and unsafe operation method of manually connecting the pipes during the internal installation reduces the labor intensity of the workers and ensures the safety of production.
以上借助具体实施例对本实用新型做了进一步描述，但是应该理解的是，这里具体的描述，不应理解为对本实用新型的实质和范围的限定，本领域内的普通技术人员在阅读本说明书后对上述实施例做出的各种修改，都属于本实用新型所保护的范围。The utility model has been further described above with the help of specific embodiments, but it should be understood that the specific description here should not be interpreted as limiting the essence and scope of the utility model. Various modifications made to the above-mentioned embodiments all belong to the protection scope of the present utility model.
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