WO2021217999A1 - 气体回收装置 - Google Patents

气体回收装置 Download PDF

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Publication number
WO2021217999A1
WO2021217999A1 PCT/CN2020/115320 CN2020115320W WO2021217999A1 WO 2021217999 A1 WO2021217999 A1 WO 2021217999A1 CN 2020115320 W CN2020115320 W CN 2020115320W WO 2021217999 A1 WO2021217999 A1 WO 2021217999A1
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Prior art keywords
pipeline
storage tank
valve
gas
recovery device
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PCT/CN2020/115320
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English (en)
French (fr)
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侯冲
郭军
李斌斌
李翠
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中车齐齐哈尔车辆有限公司
大连中车铁龙集装化技术装备研发有限公司
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Publication of WO2021217999A1 publication Critical patent/WO2021217999A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours

Definitions

  • This application relates to the technical field of refrigerated liquefied gas storage and transportation equipment, and in particular to a gas recovery device.
  • LNG tank containers have obvious advantages in railway transportation, and they conform to the development needs of domestic logistics.
  • the pressure in the tank continues to rise.
  • a discharge pipeline is connected to the gas pipeline of the tank, and a safety valve is installed on the discharge pipeline. When the internal pressure reaches a certain value, the safety valve will open to discharge the gas in the tank.
  • the present application provides a gas recovery device to solve the problem of danger in the transportation process in the related technology.
  • the gas recovery device includes a main storage tank, an auxiliary storage tank, and an auxiliary pipeline.
  • the main storage tank has a first pipeline and a second pipeline. One end is connected to the gas phase pipeline of the main storage tank, the other end of the first pipeline is connected to the outside, the first safety valve is provided on the first pipeline, and the inlet of the auxiliary pipeline is connected with the other end of the second pipeline.
  • the outlet of the pipeline is communicated with the inlet of the auxiliary storage tank, and the auxiliary pipeline is provided with a first valve.
  • the gas recovery device further includes a return pipeline, the inlet of the return pipeline is communicated with the outlet of the auxiliary storage tank, the outlet of the return pipeline communicates with the main storage tank, and the return pipeline is provided with a second valve.
  • the gas recovery device further includes a recovery pipeline, the inlet of the recovery pipeline is connected with the outlet of the auxiliary storage tank, the outlet of the recovery pipeline is provided to the application gas equipment, and the recovery pipeline is provided with a valve assembly.
  • valve assembly includes a third valve and a fourth valve, and a sealing joint is provided at the outlet of the recycling pipeline.
  • the gas recovery device further includes a pressure relief pipeline, the inlet of the pressure relief pipeline is communicated with the outlet of the auxiliary storage tank, the outlet of the pressure relief pipeline is communicated with the outside, and the pressure relief pipeline is provided with a fifth valve.
  • the fifth valve includes a second safety valve.
  • an adsorption material is provided in the auxiliary storage tank, and the adsorption material is used to absorb gas in the auxiliary storage tank.
  • a stopper is also provided in the auxiliary storage tank, and the stopper is used to limit the position of the adsorbent material in the auxiliary storage tank.
  • the gas recovery device further includes a heating component, and the heating component is used to heat the auxiliary storage tank.
  • the first valve includes a pressure regulating valve.
  • the gas recovery device includes a main storage tank, an auxiliary storage tank, and an auxiliary pipeline.
  • the outlet of the auxiliary pipeline is connected to the auxiliary storage
  • the inlet of the tank is connected, and a first valve is set on the auxiliary pipeline.
  • the first valve can be opened to discharge part of the gas in the main storage tank into the auxiliary storage tank. While reducing the pressure in the tank, the gas in the main storage tank will not be directly discharged to the outside, which can ensure the safety during transportation.
  • the first safety valve on the main storage tank can further play a role of guarantee, which can further enhance the safety of the device.
  • Fig. 1 shows a schematic structural diagram of a gas recovery device according to an embodiment of the present application.
  • Auxiliary storage tank 20. Auxiliary pipeline; 21. First valve; 30. Gas phase pipeline; 40. Return pipeline; 41. Second valve; 50. Recycling pipeline; 51. Valve assembly; 511. The third valve; 512, the fourth valve; 52, the sealing joint; 60, the pressure relief pipeline; 61, the fifth valve; 70, the pressure gauge.
  • an embodiment of the present application provides a gas recovery device.
  • the gas recovery device includes a main storage tank, an auxiliary storage tank 10 and an auxiliary pipeline 20.
  • the main storage tank has a first pipeline and a second pipeline, and both ends of the first pipeline and the second pipeline are in communication with the gas phase pipeline 30 of the main storage tank.
  • the other end of the first pipeline is connected to the outside world, and a first safety valve is provided on the first pipeline. When the pressure in the main storage tank exceeds the opening pressure of the first safety valve, the first safety valve will open to discharge Gas in the main storage tank.
  • the inlet of the auxiliary pipeline 20 communicates with the other end of the second pipeline
  • the outlet of the auxiliary pipeline 20 communicates with the inlet of the auxiliary storage tank 10
  • the auxiliary pipeline 20 is provided with a first valve 21.
  • the opening pressure of the first valve 21 is less than the opening pressure of the first safety valve.
  • the first valve 21 can be opened manually, or the first valve 21 can be set as an electric valve to realize automatic exhaust and gas storage.
  • the auxiliary pipeline 20 is used to connect the inlet of the auxiliary storage tank 10 with the gas phase pipeline 30 of the main storage tank.
  • the first valve 21 is opened. , Part of the gas in the main storage tank can be discharged into the auxiliary storage tank 10, which can reduce the pressure in the main storage tank while preventing the gas in the main storage tank from being directly discharged to the outside, which can effectively protect
  • the safe passage of LNG tanks (main storage tanks) on special road sections can improve safety during transportation.
  • the first safety valve on the main storage tank can further play a protective role.
  • the first safety valve can be used to discharge the excess gas in the main storage tank, which can further enhance the device Security.
  • the gas recovery device further includes a return line 40, the inlet of the return line 40 is in communication with the outlet of the auxiliary storage tank 10, the outlet of the return line 40 is in communication with the main storage tank, and the return line 40 is provided with The second valve 41.
  • the main storage tank when the main storage tank is transported to the destination, the main storage tank includes the following two uses: the first is to output the gas in the main storage tank to other storage and transportation equipment; the second is to directly use the gas in the main storage tank Supply gas equipment for use. When the first use is used, the main storage tank is connected to other storage and transportation equipment, and the second valve 41 is opened.
  • the second valve 41 includes a backflow stop valve.
  • the second valve 41 is not limited to adopting forms such as a stop valve, a ball valve, a butterfly valve, a gate valve, and a needle valve.
  • the second valve 41 can be set as a pressure regulating valve, so that the auxiliary storage tank 10 can transmit pressure to the main storage tank once overpressure, and the pressure is discharged through the first safety valve of the main storage tank to ensure safety .
  • the gas recovery device further includes a recycling pipeline 50, the inlet of the recycling pipeline 50 is connected to the outlet of the auxiliary storage tank 10, and the outlet of the recycling pipeline 50 is provided for the application gas equipment, and the recycling pipeline A valve assembly 51 is provided on 50.
  • the valve assembly 51 is opened, and the gas in the auxiliary storage tank 10 can be directly supplied to the gas-consuming equipment, which can further improve the recovery rate of the gas in the device.
  • the valve assembly 51 includes a third valve 511 and a fourth valve 512, and a sealing joint 52 is provided at the outlet of the recycling pipeline 50.
  • the third valve 511, the fourth valve 512, and the sealing joint 52 can function as a triple cut-off seal, which can improve the safety of the device.
  • the third valve 511 includes a shut-off valve
  • the fourth valve 512 includes a shut-off valve.
  • the shut-off valve is not limited to various control modes such as pneumatic, hydraulic, mechanical, electromagnetic, electric, etc.
  • shut-off valve is not limited to the use of shut-off valves, ball valves, butterfly valves, gate valves, needle valves, etc., and the shut-off valves can be replaced by shut-off valves.
  • the sealing joint 52 can be in the form of flange, thread, quick-fit joint, etc., and the sealing can be in the form of flange, thread, ferrule, looper, non-return, etc.
  • the gas recovery device also includes a pressure relief pipe 60.
  • the inlet of the pressure relief pipe 60 is in communication with the outlet of the auxiliary storage tank 10, and the outlet of the pressure relief pipe 60 is in communication with the outside.
  • a fifth valve 61 is provided on 60. When the pressure in the auxiliary storage tank 10 is too high, by opening the fifth valve 61, the gas in the auxiliary storage tank 10 can be released to the outside, avoiding danger.
  • the fifth valve 61 includes a second safety valve.
  • the second safety valve will automatically open to relieve the pressure of the auxiliary storage tank 10.
  • the auxiliary storage tank 10 is also provided with a pressure gauge 70.
  • an emptying pipeline can also be added, and an emptying valve is arranged on the emptying pipeline.
  • One end of the emptying valve is connected to the auxiliary storage tank 10 and the other end is connected to the centralized discharge, which can realize the active emptying operation of the gas in the auxiliary storage tank 10.
  • an adsorption material is provided in the auxiliary storage tank 10, and the adsorption material is used to absorb the gas in the auxiliary storage tank 10.
  • the adsorption material includes a porous adsorbent, and the adsorbent is mainly used to absorb gas, so that the volume of the absorbed gas is greater than the volume of the auxiliary storage tank 10.
  • a stopper is also provided in the auxiliary storage tank 10, and the stopper is used to limit the position of the adsorption material in the auxiliary storage tank 10.
  • the internal pipeline of the auxiliary storage tank 10 is sealed with nano-materials to ensure air permeability and at the same time the adsorbent will not affect the normal use of the pipeline valve.
  • wire mesh, cloth, etc. can be used to seal the adsorbent without affecting the gas flow.
  • the gas recovery device further includes a heating component, which is used to heat the auxiliary storage tank 10, which can accelerate the release efficiency of the adsorbent material, realize the stability of the adsorbent when absorbing and releasing gas, and can be regenerated.
  • the heating type can be steam, hot water, electricity, thermal oil, etc.
  • the first valve 21 includes a pressure regulating valve, and the pressure regulating valve is opened and closed by pressure control to ensure that the vaporized gas is absorbed only when it needs to be generated.
  • the pressure regulating valve automatically opens, and when the pressure drops to the set value, the pressure regulating valve automatically closes.
  • the pressure regulating valve is not limited to the use of electric, pneumatic, electromagnetic, oil pressure, mechanical and other forms of automatic valves plus pressure sensors to cooperate to achieve functions.
  • a sixth valve can also be installed on the auxiliary pipeline 20 to achieve complete isolation between the auxiliary storage tank 10 and the main storage tank.
  • auxiliary storage tank 10 directly with the gas phase pipeline 30 of the main storage tank through a pipeline will not affect the discharge of the first safety valve of the main storage tank. If the inlet of the auxiliary storage tank 10 is connected with the outlet of the first safety valve, the discharge of the first safety valve will be affected, which does not meet the requirements of laws and regulations.
  • the gas-phase pipeline 30 is not limited to being independently arranged, or to borrow a gas-phase tube or other process pipelines connected to the tank.
  • the material of the auxiliary storage tank 10 is not limited to carbon steel or stainless steel or other materials.
  • the volume of the auxiliary storage tank 10 is not limited, the pressure of the auxiliary storage tank 10 is not limited, and the auxiliary storage tank 10 is not limited to whether it has a structure such as heat preservation.
  • the tank 10 is not limited to the design and manufacture of pressure vessels or gas cylinders.
  • the gas recovery device is used on LNG tanks and tank trucks.
  • the device is mainly used in LNG transportation processes such as roads, railways, and sea transportation, especially in railway transportation.
  • the purpose is to ensure emissions in the middle of the transportation section and ensure operational safety.
  • the device is not limited to be installed as a module or integrated with equipment, and is not limited to being used to improve safety performance or extend the maintenance time function.
  • the main storage tank includes, but is not limited to, various media (such as liquid oxygen, liquid nitrogen, liquid argon, liquid neon, liquid helium, liquid trifluoromethane, liquid carbon dioxide, liquefied natural gas, liquid methane, liquid hydrogen, liquid ethylene, liquid Ethane, ethylene acetylene propylene mixture, etc.) automobile tank cars, tank containers, railway tank cars, storage tanks, gas cylinders, etc.
  • various media such as liquid oxygen, liquid nitrogen, liquid argon, liquid neon, liquid helium, liquid trifluoromethane, liquid carbon dioxide, liquefied natural gas, liquid methane, liquid hydrogen, liquid ethylene, liquid Ethane, ethylene acetylene propylene mixture, etc.
  • the device provided in this embodiment can solve the problem of danger caused by the discharge of LNG tanks on special road sections, and can also increase the pressure rise maintenance time of LNG products, delay the discharge of the first safety valve, and ensure safety through external Install equipment to improve tank performance.

Abstract

一种气体回收装置，该气体回收装置包括主储罐、辅助储罐（10）以及辅助管路（20），主储罐具有第一管路和第二管路，第一管路和第二管路的一端均与主储罐的气相管路（30）连通，第一管路的另一端与外界连通，第一管路上设置有第一安全阀，辅助管路（20）的进口与第二管路的另一端连通，辅助管路（20）的出口与辅助储罐（10）的进口连通，辅助管路（20）上设置有第一阀门（21）。通过该气体回收装置，能够解决相关技术中的运输过程中易发生危险的问题。

Description

气体回收装置
本申请要求于2020年04月27日提交至中国国家知识产权局、申请号为202020667889.X、发明名称为“气体回收装置”的专利申请的优先权。
技术领域
本申请涉及冷冻液化气体储运设备技术领域，具体而言，涉及一种气体回收装置。
背景技术
目前，液化天然气罐箱在铁路运输中优势明显，且顺应国内物流的发展需求。由于液化天然气罐箱持续吸收环境中的热量，罐内压力不断升高，为了保证运输过程中的安全，在罐箱的气相管路上连接有排放管路，排放管路上设置有安全阀，当罐内的压力达到一定值时，安全阀会打开以排放罐内的气体。
但是，由于安全阀的排放可能随时发生，且不受控制，在运输过程中经过特殊路段时(比如场站、隧道、城镇等)产生排放就有可能会产生气体聚集，有爆炸的危险。因此，相关技术中存在运输过程中易发生危险的问题。
发明内容
本申请提供一种气体回收装置，以解决相关技术中的运输过程中易发生危险的问题。
本申请提供了一种气体回收装置，气体回收装置包括主储罐、辅助储罐以及辅助管路，主储罐具有第一管路和第二管路，第一管路和第二管路的一端均与主储罐的气相管路连通，第一管路的另一端与外界连通，第一管路上设置有第一安全阀，辅助管路的进口与第二管路的另一端连通，辅助管路的出口与辅助储罐的进口连通，辅助管路上设置有第一阀门。
进一步地，气体回收装置还包括回流管路，回流管路的进口与辅助储罐的出口连通，回流管路的出口与主储罐连通，回流管路上设置有第二阀门。
进一步地，气体回收装置还包括回收利用管路，回收利用管路的进口与辅助储罐的出口连通，回收利用管路的出口对应用气设备设置，回收利用管路上设置有阀门组件。
进一步地，阀门组件包括第三阀门和第四阀门，回收利用管路的出口处设置有密封接头。
进一步地，气体回收装置还包括泄压管路，泄压管路的进口与辅助储罐的出口连通，泄压管路的出口与外界连通，泄压管路上设置有第五阀门。
进一步地，第五阀门包括第二安全阀。
进一步地，辅助储罐内设置有吸附材料，吸附材料用于吸收辅助储罐内的气体。
进一步地，辅助储罐内还设置有止挡件，止挡件用于限制吸附材料在辅助储罐内的位置。
进一步地，气体回收装置还包括加热组件，加热组件用于对辅助储罐进行加热。
进一步地，第一阀门包括调压阀。
应用本申请的技术方案，该气体回收装置包括主储罐、辅助储罐以及辅助管路，通过将辅助管路的进口与第二管路的另一端连通，将辅助管路的出口与辅助储罐的进口连通，并在辅助管路上设置第一阀门，当主储罐内的压力达到一定值时，可打开第一阀门，以使主储罐内的部分气体排放至辅助储罐内，如此能够在降低罐内的压力的同时，使主储罐内的气体不会直接排放到外界，可以保证运输过程中的安全性。并且，主储罐上的第一安全阀能够进一步起到保障的作用，可以进一步提升装置的安全性。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了根据本申请实施例提供的气体回收装置的结构示意图。
其中，上述附图包括以下附图标记：
10、辅助储罐；20、辅助管路；21、第一阀门；30、气相管路；40、回流管路；41、第二阀门；50、回收利用管路；51、阀门组件；511、第三阀门；512、第四阀门；52、密封接头；60、泄压管路；61、第五阀门；70、压力表。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
如图1所示，本申请实施例提供一种气体回收装置，气体回收装置包括主储罐、辅助储罐10以及辅助管路20。其中，主储罐具有第一管路和第二管路，第一管路和第二管路的一端均与主储罐的气相管路30连通。具体的，第一管路的另一端与外界连通，第一管路上设置有第一安全阀，当主储罐内的压力超过第一安全阀的开启压力时，第一安全阀会开启，以排出主储罐内的气体。在本实施例中，辅助管路20的进口与第二管路的另一端连通，辅助管路20的出口与辅助储罐10的进口连通，辅助管路20上设置有第一阀门21。其中，第一阀门21的开启压力小于第一安全阀的开启压力。具体的，可以通过手动的方式开启第一阀门21，也可以将第一阀门21设置为电动阀门，以实现自动排气储气。
应用本实施例提供的气体回收装置，利用辅助管路20将辅助储罐10的进口与主储罐的气相管路30连通，当主储罐内的压力达到一定值时，通过开启第一阀门21，可将主储罐内的部分气体排放至辅助储罐10内，如此能够在降低主储罐的罐内压力的同时，使主储罐内的气体不会直接排放到外界，能够有效地保障液化天然气罐箱(主储罐)在特殊路段安全通过，可以提升运输过程中的安全性。并且，主储罐上的第一安全阀能够进一步起到保障的作用，当辅助储罐10无法继续储气时，可利用第一安全阀将主储罐内多余的气体排出，能够进一步提升装置的安全性。
在本实施例中，气体回收装置还包括回流管路40，回流管路40的进口与辅助储罐10的出口连通，回流管路40的出口与主储罐连通，回流管路40上设置有第二阀门41。其中，当主储罐运输至目的地之后，主储罐包括以下两种用途：第一种，将主储罐内的气体输出至其它储运设备；第二种，直接利用主储罐内的气体供给用气设备使用。当采用第一种用途时，将主储罐与其它的储运设备连通，开启第二阀门41，随着主储罐内气体的减少，辅助储罐10内的气体可通过回流管路40回流至主储罐内，进而运送至其它的储运设备。通过设置回流管路40，能够提升装置内气体的回收利用率。在本实施例中，第二阀门41包括回流截止阀。其中，第二阀门41不限于采用截止阀、球阀、蝶阀、闸阀、针型阀等形式。
在其它实施例中，可将第二阀门41设置为调压阀，实现辅助储罐10一旦超压可以向主储罐传输压力，通过主储罐的第一安全阀将压力排掉，保障安全。
在本实施例中，气体回收装置还包括回收利用管路50，回收利用管路50的进口与辅助储罐10的出口连通，回收利用管路50的出口对应用气设备设置，回收利用管路50上设置有阀门组件51。当采用第二种用途时，打开阀门组件51，辅助储罐10内的气体可直接供给用气设备使用，能够进一步提升装置内气体的回收利用率。
具体的，阀门组件51包括第三阀门511和第四阀门512，回收利用管路50的出口处设置有密封接头52。采用上述结构，第三阀门511、第四阀门512以及密封接头52可起到三重截止密封的作用，能够提升装置的安全性。在本实施例中，第三阀门511包括切断阀，第四阀门512包括截止阀。其中，切断阀不限于气动、液压、机械、电磁、电动等各类控制形式，截止阀不限于采用截止阀、球阀、蝶阀、闸阀、针型阀等形式，且切断阀可用截止阀替代。其中，密封接头52可以采用法兰、螺纹、快装接头等形式，密封可采用法兰、螺纹、卡套、活套、止回等形式。
为了进一步提升装置的安全性，气体回收装置还包括泄压管路60，泄压管路60的进口与辅助储罐10的出口连通，泄压管路60的出口与外界连通，泄压管路60上设置有第五阀门61。当辅助储罐10内的压力过高时，通过开启第五阀门61，能够将辅助储罐10内的气体释放至外界，避免出现危险。
在本实施例中，第五阀门61包括第二安全阀，当辅助储罐10内的压力达到一定值之后，第二安全阀会自动开启，以对辅助储罐10进行泄压。其中，辅助储罐10上还设置有压力表70。
其中，还可以增设排空管路，在排空管路上设置排空阀，排空阀一端连接辅助储罐10，另一端连接集中排放，可以实现辅助储罐10内气体的主动放空操作。
为了提升辅助储罐10的储气能力，辅助储罐10内设置有吸附材料，吸附材料用于吸收辅助储罐10内的气体。其中，吸附材料包括多孔吸附剂，主要利用吸附剂吸收气体，实现吸收的气体体积大于辅助储罐10的体积。
为了避免吸附材料堵塞辅助储罐10以及其它管路，辅助储罐10内还设置有止挡件，止挡件用于限制吸附材料在辅助储罐10内的位置。在本实施例中，辅助储罐10内部管路利用纳米材料密封，保障通气性的同时吸附剂不会影响管路阀门的正常使用。在其它实施例中，可采用金属丝网，布料等来封住吸附剂而不影响气体流动。
在本实施例中，气体回收装置还包括加热组件，加热组件用于对辅助储罐10进行加热，能够加快吸附材料的释放效率，实现吸附剂吸收和放出气体时的稳定性，并且可以再生。其中，加热型式可采用蒸汽、热水、电、热油等。
在本实施例中，第一阀门21包括调压阀，调压阀通过压力控制开闭，能够确保仅在需要产生蒸发气体的情况下对其进行吸收。当压力升高到设定值时调压阀自动开启，当压力降低至设定值时，调压阀自动关闭。其中，调压阀不限于采用电动、气动、电磁、油压、机械等形式自动阀门加压力传感器的形式来配合实现功能。
其中，还可以在辅助管路20上安装第六阀门，以实现辅助储罐10与主储罐的完全隔离。
并且，将辅助储罐10通过管路直接与主储罐的气相管路30连通，不会影响主储罐的第一安全阀的排放。若将辅助储罐10的进口与第一安全阀的出口连通，则会影响第一安全阀的排放，不符合法规标准的规定。
其中，气相管路30不限于独立设置、或借用气相管或者其他与罐内连接的工艺管路。
具体的，辅助储罐10材料不限于碳钢或者不锈钢或者其他材料，辅助储罐10容积不限制大小，辅助储罐10压力不限制大小，辅助储罐10不限制是否具有保温等结构，辅助储罐10不限于按照压力容器或者气瓶设计制造。
在本实施例中，该气体回收装置在LNG罐箱和罐车上使用。其中，该装置主要应用在于公路、铁路、海运等LNG运输过程中，尤其是在铁路运输中，目的是保障在运输路段中部产生排放，保障运营安全。其中，该装置不限于做成模块安装或者与集成在设备上，且不限于应用在提高安全性能或者延长维持时间功能。
其中，主储罐包括但不限于各类介质(例如液氧、液氮、液氩、液氖、液氦、液态三氟甲烷、液态二氧化碳、液化天然气、液态甲烷、液氢、液态乙烯、液态乙烷、乙烯乙炔丙烯混合气等)的汽车罐车、罐式集装箱、铁路罐车、储罐、气瓶等。
通过本实施例提供的装置，能够解决液化天然气罐箱由于在特殊路段产生排放而造成危险的问题，亦可以提高液化天然气产品的升压维持时间，延缓第一安全阀排放，保障安全，通过外置设备提高罐体性能。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种气体回收装置，所述气体回收装置包括主储罐、辅助储罐(10)以及辅助管路(20)，所述主储罐具有第一管路和第二管路，所述第一管路和所述第二管路的一端均与所述主储罐的气相管路(30)连通，所述第一管路的另一端与外界连通，所述第一管路上设置有第一安全阀，所述辅助管路(20)的进口与所述第二管路的另一端连通，所述辅助管路(20)的出口与所述辅助储罐(10)的进口连通，所述辅助管路(20)上设置有第一阀门(21)。
  2. 根据权利要求1所述的气体回收装置，所述气体回收装置还包括回流管路(40)，所述回流管路(40)的进口与所述辅助储罐(10)的出口连通，所述回流管路(40)的出口与所述主储罐连通，所述回流管路(40)上设置有第二阀门(41)。
  3. 根据权利要求1所述的气体回收装置，所述气体回收装置还包括回收利用管路(50)，所述回收利用管路(50)的进口与所述辅助储罐(10)的出口连通，所述回收利用管路(50)的出口对应用气设备设置，所述回收利用管路(50)上设置有阀门组件(51)。
  4. 根据权利要求3所述的气体回收装置，所述阀门组件(51)包括第三阀门(511)和第四阀门(512)，所述回收利用管路(50)的出口处设置有密封接头(52)。
  5. 根据权利要求1所述的气体回收装置，所述气体回收装置还包括泄压管路(60)，所述泄压管路(60)的进口与所述辅助储罐(10)的出口连通，所述泄压管路(60)的出口与外界连通，所述泄压管路(60)上设置有第五阀门(61)。
  6. 根据权利要求5所述的气体回收装置，所述第五阀门(61)包括第二安全阀。
  7. 根据权利要求1所述的气体回收装置，所述辅助储罐(10)内设置有吸附材料，所述吸附材料用于吸收所述辅助储罐(10)内的气体。
  8. 根据权利要求7所述的气体回收装置，所述辅助储罐(10)内还设置有止挡件，所述止挡件用于限制所述吸附材料在所述辅助储罐(10)内的位置。
  9. 根据权利要求1所述的气体回收装置，所述气体回收装置还包括加热组件，所述加热组件用于对所述辅助储罐(10)进行加热。
  10. 根据权利要求1所述的气体回收装置，所述第一阀门(21)包括调压阀。
PCT/CN2020/115320 2020-04-27 2020-09-15 气体回收装置 WO2021217999A1 (zh)

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