WO2022011901A1 - 一种固态co2清洗机的尾气处理系统 - Google Patents

一种固态co2清洗机的尾气处理系统 Download PDF

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Publication number
WO2022011901A1
WO2022011901A1 PCT/CN2020/127627 CN2020127627W WO2022011901A1 WO 2022011901 A1 WO2022011901 A1 WO 2022011901A1 CN 2020127627 W CN2020127627 W CN 2020127627W WO 2022011901 A1 WO2022011901 A1 WO 2022011901A1
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carbon dioxide
pipe
dry ice
exhaust gas
solid
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PCT/CN2020/127627
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English (en)
French (fr)
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马林
陈水宣
洪昭斌
袁和平
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厦门理工学院
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/50—Carbon dioxide
    • C01B32/55—Solidifying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0027—Oxides of carbon, e.g. CO2
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Definitions

  • the invention relates to the technical field of dry ice cleaning, and more particularly, to a tail gas treatment system of a solid-state CO2 cleaning machine.
  • Dry ice refers to solid carbon dioxide, which is widely used in various occasions. Dry ice cleaning, as a method of cleaning dirt, is often used in the cleaning of optoelectronic devices.
  • Existing dry ice cleaning machines are usually equipped with a dry ice production device for direct use.
  • gaseous carbon dioxide is generally sent to a liquid carbon dioxide production device through a pipeline, and the device is cooled, compressed, dehydrocarbonated, and purified. , liquefaction and purification and other processes, and then transport the liquid carbon dioxide from the storage tank to the dry ice machine for manufacture, and in the process of producing dry ice by the dry ice machine, a part (about 60%) of the liquid carbon dioxide is gasified and turned into exhaust gas.
  • the other part (about 40%) of the liquid carbon dioxide is taken away by the vaporized carbon dioxide to quickly cool down, thereby forming bulk dry ice, which is formed into formed dry ice under the extrusion of the high-pressure grinding tool of the dry ice machine.
  • the purpose of the present invention is to provide a solid CO2 cleaning machine tail gas treatment system, which can recycle and reuse the waste gas resources of the cleaning machine, reduce carbon dioxide emissions, and has the advantages of improving its energy saving and environmental protection effect.
  • the present invention provides the following technical solutions:
  • a tail gas treatment system for a solid-state CO2 cleaning machine comprising a dry ice manufacturing device, a dry ice cleaning device connected to the dry ice manufacturing device, and a tail gas device for recovering exhaust gas
  • the dry ice manufacturing device is provided with an exhaust gas conveying pipe
  • the dry ice cleaning device A cleaning and sealing chamber is arranged on the device, and a gas recovery pipe is arranged on the cleaning and sealing chamber.
  • the gas recovery pipe is connected with a filter device for filtering impurities, and a gas delivery pipe is connected to the filter device.
  • the tail gas device includes A circulating water pool, a carbon dioxide purifier and a carbon dioxide circulating pipe, the tail gas conveying pipe is coiled in the circulating water tank, and the gas conveying pipe is connected with the carbon dioxide purifier, the carbon dioxide purifier is provided with a carbon dioxide output pipe, and the tail gas conveys
  • the pipe is directly connected with the carbon dioxide circulation pipe, the carbon dioxide output pipe is connected with the carbon dioxide circulation pipe, and the carbon dioxide circulation pipe is connected with the dry ice production device.
  • the dry ice manufacturing device includes a gaseous carbon dioxide supplier, a liquid carbon dioxide generator and a dry ice compressor, the exhaust gas delivery pipe is connected to the exhaust port of the dry ice compressor, and the gaseous carbon dioxide supplier is connected to the liquid carbon dioxide through a connecting pipe.
  • the generator is connected, the liquid carbon dioxide generator is connected to the dry ice compressor through an infusion pipe, the part of the exhaust gas delivery pipe located in front of the circulating water tank is wound on the infusion pipe, the carbon dioxide circulation pipe is connected to the liquid carbon dioxide generator, and all
  • the carbon dioxide circulation pipe is provided with a heat exchanger 1, and the connecting pipe is connected with the heat exchanger 1 and then connected to the liquid carbon dioxide generator.
  • the circulating water tank is provided with a cold water circulation pipe, the two ends of the cold water circulation pipe are respectively connected with the water inlet and the water outlet of the circulating water tank, and the cold water circulation pipe is provided with a second heat exchanger and a heat exchanger Third, the carbon dioxide circulation pipe and the part of the connecting pipe located behind the first heat exchanger are respectively connected to the liquid carbon dioxide generator after passing through the second heat exchanger and the third heat exchanger.
  • the part where the exhaust gas conveying pipe and the infusion pipe are connected to each other is wrapped with thermal insulation cotton.
  • the part of the exhaust gas conveying pipe located behind the circulation pool is provided with a heat exchanger 4, and the carbon dioxide output pipe is connected with the heat exchanger 4 and then connected to the dry ice maker.
  • the exhaust gas conveying pipe is provided with an electric control valve and a temperature sensor on both the front and rear sides of the circulating pool, the temperature sensor is connected with the control system, and the electric control valve is controlled on the control system.
  • the second electric control valve is arranged on the gas delivery pipe and the carbon dioxide circulation pipe, and the second electric control valve is controlled by the control system.
  • the filter device includes a filter chamber connected to the gas recovery pipe and a plurality of filter screens arranged in the filter chamber, the filter chamber is divided into a solid isolation cavity and a gas flow cavity by the isolation screen, and a plurality of the filter screens The array is arranged in the gas flow cavity, and the filter mesh holes of the filter screen are set smaller than the filter mesh holes of the isolation mesh.
  • the bottom of the solid isolation chamber is provided with a solid sedimentation tank for accommodating filtered solids.
  • the cleaning and sealing chamber is provided with a sealing door that can be opened or closed, and the sealing door is provided with an observation window.
  • the present invention has the following advantages compared with the prior art:
  • the temperature of the surrounding environment outside the infusion pipe can be reduced by using the cold energy of the exhaust gas just discharged, so as to reduce the loss of cold energy during the transportation of the infusion pipe and improve the production of dry ice in the dry ice compressor. efficient;
  • the recovered carbon dioxide can be exchanged with the connecting pipe in the carbon dioxide circulation pipe, thereby reducing the temperature of the connecting pipe, so that both the connecting pipe and the carbon dioxide circulating pipe can deliver lower temperature carbon dioxide gas to the Inside the liquid carbon dioxide generator, thereby reducing the power consumption of the liquid carbon dioxide generator when producing liquid carbon dioxide, which has the effect of energy saving;
  • the cold water in the circulating pool is circulated through the cold water circulation pipe, which is matched with the second heat exchanger and the third heat exchanger, which can reduce the temperature of the gas in the carbon dioxide circulation pipe and the connecting pipe, and further reduce the power consumption of the liquid carbon dioxide generator during operation. , with energy saving effect.
  • Fig. 1 is the structural representation of the tail gas treatment system of solid-state CO cleaning machine
  • Fig. 2 is the enlarged schematic diagram of A place in Fig. 1;
  • Figure 3 is a schematic diagram of the internal structure of the filter device.
  • a tail gas treatment system for a solid-state CO2 cleaning machine includes a dry ice manufacturing device 1, a dry ice cleaning device 2 connected to the dry ice manufacturing device 1, and a tail gas device 3 for recovering exhaust gas.
  • the device 1 and the dry ice cleaning device 2 are connected, and can be used to recover the exhaust gas of the two, clean and reuse them, reduce the emission of carbon dioxide, and improve the effect of energy saving and environmental protection.
  • the dry ice manufacturing apparatus 1 includes a gaseous carbon dioxide supplier 11, a liquid carbon dioxide generator 12 and a dry ice compressor 13.
  • the gaseous carbon dioxide attacker is connected to the liquid carbon dioxide generator 12 through a connecting pipe 14, and the liquid carbon dioxide manufactures
  • the device 12 is connected to the dry ice compressor 13 through the infusion tube 15, thereby forming a dry ice manufacturing chain, which is convenient for manufacturing dry ice.
  • the dry ice compressor 13 manufactures dry ice, some gas will run out, so the exhaust port of the dry ice compressor 13 is connected with the exhaust gas delivery pipe 4, and the exhaust gas delivery pipe 4 is connected with the exhaust gas device 3, so as to pass through the exhaust gas device 3 After the treatment, it is circulated and sent to the dry ice making device 1 for remanufacturing, so as to improve the effect of energy saving and emission reduction.
  • the tail gas delivery pipe 4 is located at the front part of the connection of the tail gas device 3 and is wound on the infusion pipe 15, and uses the cold energy in the exhaust gas just discharged from the dry ice compressor 13 to cool the temperature outside the infusion pipe 15, so as to ensure that the inside of the infusion pipe 15 is cooled.
  • the carbon dioxide liquid is in a low temperature state to avoid gasification during its transportation.
  • the part connecting the exhaust gas transportation pipe 4 and the infusion pipe 15 is wrapped with thermal insulation cotton 9, which further reduces the loss of cooling capacity and improves the dry ice production rate.
  • the dry ice cleaning device 2 is provided with a cleaning and sealing chamber 21
  • the cleaning and sealing chamber 21 is provided with a sealing door 22 that can be opened or closed, so that the cleaning workpiece can be put in by opening the sealing door 22 .
  • the sealing door 22 is provided with an observation window 23 to facilitate observation of the cleaning condition in the cleaning and sealing chamber 21 .
  • a gas recovery pipe 5 is arranged on one side of the cleaning and sealing chamber 21, and a recovery pump is arranged on the gas recovery pipe 5 to recover the gas, scattered solids and other impurities generated during cleaning in the cleaning and sealing chamber 21.
  • the gas recovery pipe 5 is connected with a filter device 6 for filtering impurities, so as to filter excess impurities to improve the recovery purity of carbon dioxide gas.
  • the tail gas device 3 includes a circulating water tank 31, a carbon dioxide purifier 32 and a carbon dioxide circulation pipe 33, the filter device 6 is connected with a gas delivery pipe 7, and the tail gas delivery pipe 4 is coiled in the circulating water tank 31, and the gas delivery pipe 7 is connected with the carbon dioxide purifier 32, the carbon dioxide purifier 32 is provided with a carbon dioxide output pipe 8, the end of the tail gas delivery pipe 4 away from the dry ice compressor 13 is connected with the carbon dioxide circulation pipe 33, and the carbon dioxide output pipe 8 is away from the carbon dioxide purifier 32.
  • the carbon dioxide circulation pipe 33 is connected, and the other end of the carbon dioxide circulation pipe 33 is connected with the liquid carbon dioxide generator 12 of the dry ice manufacturing apparatus 1, so as to recycle the carbon dioxide to reduce emissions and have the effect of energy saving and emission reduction.
  • the filter device 6 includes a filter chamber 61 connected to the gas recovery pipe 5 and a plurality of filter screens 62 arranged in the filter chamber 61 , wherein the filter chamber 61 is divided by the isolation screen 63
  • a solid sedimentation tank 613 is provided at the bottom of the solid isolation chamber 611 for accommodating filtered solids, so that partially recovered dry ice particles can be precipitated in the solid sedimentation tank 613 and then gasified. It is sent into the gas flow chamber 612 for filtration.
  • a plurality of filter meshes 62 are arranged in the gas flow cavity 612 in an array, and the filter mesh 62 holes of the filter mesh 62 are smaller than the filter mesh 62 holes of the isolation mesh 63, so as to filter impurities in the gas and facilitate the subsequent carbon dioxide purifier 32. purification work.
  • a heat exchanger one 16 is provided on the carbon dioxide circulation pipe 33, and the connecting pipe 14 is connected to the heat exchanger one 16 and then connected to the liquid carbon dioxide generator 12, so that the cooling capacity of the carbon dioxide circulation pipe 33 and the The cold energy of the connecting pipe 14 is exchanged with each other, so as to use the cold energy of the carbon dioxide circulation pipe 33 to pre-cool the connecting pipe 14 in advance, so that the gas carbon dioxide temperature sent into the liquid carbon dioxide generator 12 by the two is lower, which is convenient to reduce the liquid carbon dioxide generator 12.
  • the power consumption has the effect of energy saving and emission reduction.
  • a cold water circulation pipe 311 is provided on the circulating water tank 31 , and the two ends of the cold water circulation pipe 311 are respectively connected to the water inlet and the water outlet of the circulating water tank 31 , thereby providing the circulating flow of cold water.
  • the second heat exchanger 312 and the third heat exchanger 313 are arranged on the cold water circulation pipe 311, and the carbon dioxide circulation pipe 33 and the part of the connecting pipe 14 located behind the heat exchanger one 16 are respectively connected to the heat exchanger two 312 and the heat exchanger.
  • the third device 313 is connected to the liquid carbon dioxide generator 12, so as to use cold water to further cool the gas in the carbon dioxide circulation pipe 33 and the connecting pipe 14, and reduce the temperature when gaseous carbon dioxide enters the liquid carbon dioxide generator 12, so as to reduce the liquid carbon dioxide temperature.
  • the power consumption when the carbon dioxide generator 12 produces liquid carbon dioxide has the effect of energy saving and emission reduction.
  • a control system 10 is also included.
  • the exhaust gas conveying pipe 4 is provided with an electric control valve 101 and a temperature sensor 102 on the front and rear sides of the circulating water pool 31 .
  • the temperature sensor 102 is connected to the control system 10 and is electrically controlled.
  • the valve one 101 is controlled by the control system 10, so as to open and close the two electronically controlled valves one 101 respectively according to the temperature of the exhaust gas conveying pipe 4 and the circulating water pool 31 after the exchange of cold energy, so as to conveniently control the cold energy recovery time.
  • the second electric control valve 103 is provided on the gas delivery pipe 7 and the carbon dioxide circulation pipe 33, and the second electric control valve 103 is controlled by the control system 10, so as to control the transportation of the gas delivery pipe 7 and the carbon dioxide circulation pipe 33, and improve the exhaust gas Convenience of loop processing control.
  • the cleaning closed space is formed by cleaning the sealed chamber 21, so that the exhaust gas generated during cleaning can be recovered by the gas recovery pipe 5, and then the impurities in the recovered exhaust gas are filtered out by the filter device 6, and the carbon dioxide is purified by the carbon dioxide purification device. Thereby increasing the purity of the recovered carbon dioxide.
  • the exhaust gas from the dry ice manufacturing device 1 is recovered through the exhaust gas delivery pipe 4, and its gas temperature is relatively low, and it can be coiled on the infusion pipe 15 to cool the external environment, so as to ensure that the infusion pipe 15 does not lose cooling capacity when it is input into the dry ice compressor 13 , to improve the dry ice production effect of the dry ice compressor 13 .
  • the exhaust gas conveying pipe 4 is sent into the circulating water tank 31 for cooling energy recovery, and the heat exchanger 41 exchanges the cooling energy with the carbon dioxide output pipe 8, so that both the carbon dioxide output pipe 8 and the exhaust gas conveying pipe 4 can have a lower temperature.
  • the carbon dioxide is sent into the carbon dioxide circulation pipe, and is sent to the liquid carbon dioxide generator 12 through the carbon dioxide circulation pipe 33, wherein the carbon dioxide circulation pipe 33 can exchange cold energy with the cold water pipe to reduce the gas temperature in the carbon dioxide circulation pipe 33. , so as to reduce the power consumption of the liquid carbon dioxide generator 12, thereby forming a cycle for recycling and reuse.
  • the exhaust gas resources of the dry ice production device 1 and the dry ice cleaning device 2 in the cleaning machine can be recycled and reused, reducing carbon dioxide emissions, and cooperating with the recovery and exchange of cold energy, reducing the power consumption of dry ice production and the cooling function of the circulating water pool 31. It has the advantage of improving its energy saving and environmental protection effect.

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Abstract

一种固态CO 2清洗机的尾气处理系统，包括干冰制造装置(1)、干冰清洗装置(2)以及尾气装置(3)，干冰制造装置(1)上设有尾气输送管(4)，干冰清洗装置(2)上设有清洗密封室(21)，清洗密封室(21)上设有气体回收管(5)，气体回收管(5)连接有过滤装置(6)，过滤装置(6)上连接有气体输送管(7)，尾气装置(3)包括循环水池(31)、二氧化碳提纯器(32)以及二氧化碳循环管(33)，尾气输送管(4)盘绕于循环水池(31)内，气体输送管(7)与二氧化碳提纯器(32)连接，二氧化碳提纯器(32)上设有二氧化碳输出管(8)，尾气输送管(4)与二氧化碳输出管(8)均连接于二氧化碳循环管(33)，二氧化碳循环管(33)与干冰制造装置(1)连接。该尾气处理系统能够将清洗机的尾气资源回收再利用，减少二氧化碳排放，具有提高其节能环保效果的优点。

Description

一种固态CO2清洗机的尾气处理系统 技术领域
本发明涉及干冰清洗技术领域，更具体地说，它涉及一种固态CO2清洗机的尾气处理系统。
背景技术
干冰是指固态二氧化碳，被广泛的应用到各类场合中，其中干冰清洗作为一种清洗污垢采用方法，常作为光电器件的清洗处理中。现有的干冰清洗机通常会配制干冰制造装置，以直接进行使用，而在干冰制造的过程中，一般将气态二氧化碳通过管道送至液体二氧化碳生产装置，经过装置的冷却、压缩、脱烃、净化、液化提纯等工序，然后再将液体二氧化碳从储罐中输送至干冰机进行制造，而在干冰机生产干冰的过程中，一部分(约60％)的液体二氧化碳被气化，变成尾气放空，而另一部分(约40％)的液体二氧化碳被气化的二氧化碳带走热量迅速降温，从而形成散状干冰，上述散装干冰在干冰机高压磨具的挤压下形成成型的干冰。
现有技术中，干冰制造时气化的二氧化碳通常直接排放，容易导致冷量损失，并污染环境，加速全球变暖趋势，同时固态CO2清洗机在清洗时二氧化碳气体也直接散发排放，进一步加剧环境的污染。
发明内容
针对现有技术存在的不足，本发明的目的在于提供一种固态CO2清洗机的尾气处理系统，能够将清洗机的尾气资源回收再利用，减少二氧化碳排放，具有提高其节能环保效果的优点。
为实现上述目的，本发明提供了如下技术方案：
一种固态CO2清洗机的尾气处理系统，包括干冰制造装置、与干冰制造装置连接的干冰清洗装置以及用于回收尾气的尾气装置，所述干冰制造装置上设有尾气输送管，所述干冰清洗装置上设有清洗密封室，所述清洗密封室 上设有气体回收管，所述气体回收管连接有用于过滤杂质的过滤装置，所述过滤装置上连接有气体输送管，所述尾气装置包括循环水池、二氧化碳提纯器以及二氧化碳循环管，所述尾气输送管盘绕于循环水池内，且所述气体输送管与二氧化碳提纯器连接，所述二氧化碳提纯器上设有二氧化碳输出管，所述尾气输送管直接与二氧化碳循环管连接，所述二氧化碳输出管与二氧化碳循环管连接，所述二氧化碳循环管与干冰制造装置连接。
进一步设置：所述干冰制造装置包括气态二氧化碳供给器、液态二氧化碳制造器以及干冰压缩器，所述尾气输送管与干冰压缩器的排气口连接，所述气态二氧化碳供给器通过连接管与液态二氧化碳制造器连接，所述液态二氧化碳制造器通过输液管与干冰压缩器连接，所述尾气输送管位于循环水池前的部分缠绕于输液管上，所述二氧化碳循环管与液态二氧化碳制造器连接，且所述二氧化碳循环管上设有换热器一，所述连接管与换热器一连接后连接至液态二氧化碳制造器上。
进一步设置：所述循环水池上设有冷水循环管，所述冷水循环管的两端分别与循环水池的进水口与出水口连接，所述冷水循环管上设有换热器二与换热器三，所述二氧化碳循环管与连接管位于换热器一之后的部分分别通入换热器二与换热器三后连接至液态二氧化碳制造器上。
进一步设置：所述尾气输送管与输液管相互连接的部分外包裹有保温棉。
进一步设置：所述尾气输送管位于循环池之后的部分设有换热器四，所述二氧化碳输出管与换热器四连接后连接至干冰制造器上。
进一步设置：还包括一控制系统，所述尾气输送管位于循环水池的前后两侧上均设有电控阀一以及温度传感器，所述温度传感器与控制系统连接，所述电控阀一受控于控制系统上。
进一步设置：所述气体输送管与二氧化碳循环管上均设有电控阀二，所述电控阀二受控于控制系统上。
进一步设置：所述过滤装置包括与气体回收管连接的过滤室以及设于过滤室内的多个过滤网，所述过滤室由隔离网分为固体隔离腔与气体流通腔，多个所述过滤网阵列设于气体流通腔内，且所述过滤网的过滤网孔小于隔离网的过滤网孔设置。
进一步设置：所述固体隔离腔底部设有用于容纳被过滤固体的固体沉积槽。
进一步设置：所述清洗密封室上设有可开启或关闭的密封门，且所述密封门上设有观察窗。
通过采用上述技术方案，本发明相对现有技术相比，具有以下优点：
1、通过尾气输送管与气体回收管的配合，分别回收干冰制造装置与干冰清洗装置作业时的尾气，从而利用尾气装置进行回收冷量以及过滤提纯，使得尾气能够送入干冰制造装置中再利用，减少二氧化碳排放，具有提高其节能环保效果的优点；
2、通过将尾气输送管缠绕于输液管上，可利用刚排出的尾气冷量来降低输液管外周围环境的温度，以减少输液管输送过程中的冷量流失，提高干冰压缩器中干冰制造效率；
3、通过换热器一的设置，能够给回收的二氧化碳在二氧化碳循环管中与连接管进行换热，从而降低连接管的温度，使得连接管与二氧化碳循环管均输送较低温度的二氧化碳气体给液态二氧化碳制造器内，从而降低液态二氧化碳制造器制造液态二氧化碳时的功耗，具有节能的效果；
4、通过冷水循环管将循环水池中的冷水进行循环，配合于换热器二与换热器三，能够降低二氧化碳循环管与连接管内气体的温度，进一步降低液态二氧化碳制造器作业时的功耗，具有节能效果。
附图说明
图1为固态CO2清洗机的尾气处理系统的结构示意图；
图2为图1中A处的放大示意图；
图3为过滤装置的内部结构示意图。
图中：1、干冰制造装置；11、气态二氧化碳供给器；12、液态二氧化碳制造器；13、干冰压缩器；14、连接管；15、输液管；16、换热器一；2、干冰清洗装置；21、清洗密封室；22、密封门；23、观察窗；3、尾气装置；31、循环水池；311、冷水循环管；312、换热器二；313、换热器三；32、二氧化碳提纯器；33、二氧化碳循环管；4、尾气输送管；41、换热器四；5、气体回收管；6、过滤装置；61、过滤室；611、固体隔离腔；612、气体流通腔；613、固体沉积槽；62、过滤网；63、隔离网；7、气体输送管；8、二氧化碳输出管；9、保温棉；10、控制系统；101、电控阀一；102、温度传感器；103、电控阀二。
具体实施方式
参照图1至图3对固态CO2清洗机的尾气处理系统做进一步说明。
一种固态CO2清洗机的尾气处理系统，如图1所示，包括干冰制造装置1、与干冰制造装置1连接的干冰清洗装置2以及用于回收尾气的尾气装置3，尾气装置3与干冰制造装置1以及干冰清洗装置2连接，能够用于回收二者的尾气，并清洗再利用，减少二氧化碳的排放，提高节能环保效果。
如图1和图2所示，干冰制造装置1包括气态二氧化碳供给器11、液态二氧化碳制造器12以及干冰压缩器13，气态二氧化碳攻击器通过连接管14与液态二氧化碳制造器12连接，液态二氧化碳制造器12通过输液管15与干冰压缩器13连接，从而形成干冰制造链，方便制造干冰。其中，在干冰压缩器13制造干冰时会有部分气体跑出，因此在干冰压缩器13的排气口处连接有尾气输送管4，尾气输送管4与尾气装置3连接，从而经过尾气装置3处理后循环送入干冰制造装置1中进行再制造，提高节能减排的效果。同时，尾气输送管4位于尾气装置3连接的前段部分缠绕于输液管15上，利用刚从干 冰压缩器13排出的尾气中的冷量来冷却输液管15外侧的温度，以保证输液管15内二氧化碳液体处于低温状态，避免其输送过程中气化，尾气输送管4与输液管15相互连接的部分外包裹有保温棉9，进一步降低冷量流失，提高干冰制造率。
如图1所示，在干冰清洗装置2上设有清洗密封室21，清洗密封室21上设有可开启或关闭的密封门22，以便于通过打开密封门22放入清洗工件。其中，密封门22上设有观察窗23，方便观察清洗密封室21内的清洗状况。在清洗密封室21的一侧设有气体回收管5，气体回收管5上设有回收泵，以将清洗密封室21内清洗时产生的气体、散落的固体以及其他杂质进行回收，气体回收管5连接有用于过滤杂质的过滤装置6，从而过滤多余杂质，以提高二氧化碳气体回收纯度。
如图1所示，尾气装置3包括循环水池31、二氧化碳提纯器32以及二氧化碳循环管33，过滤装置6上连接有气体输送管7，尾气输送管4盘绕于循环水池31内，且气体输送管7与二氧化碳提纯器32连接，二氧化碳提纯器32上设有二氧化碳输出管8，尾气输送管4远离干冰压缩器13的一端与二氧化碳循环管33连接，二氧化碳输出管8远离二氧化碳提纯器32的一端与二氧化碳循环管33连接，二氧化碳循环管33的另一端与干冰制造装置1的液态二氧化碳制造器12连接，从而将二氧化碳循环利用，以减少排放，具有节能减排的效果。
如图1和图3所示，具体的，过滤装置6包括与气体回收管5连接的过滤室61以及设于过滤室61内的多个过滤网62，其中，过滤室61由隔离网63分为固体隔离腔611与气体流通腔612，在固体隔离腔611底部设有用于容纳被过滤掉固体的固体沉积槽613，以使得部分回收的干冰颗粒能够在固体沉积槽613中沉淀，随后气化送入气体流通腔612内过滤。其中，多个过滤网62阵列设于气体流通腔612内，且过滤网62的过滤网62孔小于隔离网63 的过滤网62孔设置，以便于过滤气体中的杂质，方便后续二氧化碳提纯器32的提纯作业。
如图1所示，在二氧化碳循环管33上设有换热器一16，连接管14与换热器一16连接后连接至液态二氧化碳制造器12上，从而将二氧化碳循环管33的冷量与连接管14的冷量相互交换，以利用二氧化碳循环管33的冷量提前预冷连接管14，使得二者送入液态二氧化碳制造器12内的气体二氧化碳温度较低，便于减少液态二氧化碳制造器12的功耗，具有节能减排的效果。
如图1所示，进一步的，在循环水池31上设有冷水循环管311，冷水循环管311的两端分别与循环水池31的进水口与出水口连接，从而提供冷水的循环流动。其中，在冷水循环管311上设有换热器二312与换热器三313，二氧化碳循环管33与连接管14位于换热器一16之后的部分分别通入换热器二312与换热器三313后连接至液态二氧化碳制造器12上，从而利用冷水给二氧化碳循环管33以及连接管14内的气体进一步进行冷却，降低气态二氧化碳进入液态二氧化碳制造器12内时的温度，以便于减少液态二氧化碳制造器12制造液态二氧化碳时的功耗，具有节能减排的效果。
如图1所示，还包括一控制系统10，尾气输送管4位于循环水池31的前后两侧上均设有电控阀一101以及温度传感器102，温度传感器102与控制系统10连接，电控阀一101受控于控制系统10上，以便于根据尾气输送管4与循环水池31的冷量交换后的温度，来分别启闭两个电控阀一101，方便控制冷量回收时间。在气体输送管7与二氧化碳循环管33上均设有电控阀二103，电控阀二103受控于控制系统10上，以便于控制气体输送管7与二氧化碳循环管33的输送，提高尾气循环处理控制的便捷性。
工作原理：通过清洗密封室21形成清洗封闭空间，以便于气体回收管5将清洗时产生的尾气进行回收，接着利用过滤装置6过滤掉回收尾气中的杂质，并通过二氧化碳提纯装置进行二氧化碳提纯，从而提高回收的二氧化碳 纯度。通过尾气输送管4回收干冰制造装置1上的尾气，且其气体温度较低，可盘绕于输液管15上对其外环境进行降温，保证输液管15输入干冰压缩器13内时不丧失冷量，提高干冰压缩器13的干冰生产效果。之后尾气输送管4送入循环水池31中进行冷量回收后，由换热器四41来与二氧化碳输出管8进行冷量交换，从而使得二氧化碳输出管8与尾气输送管4均能够以较低温度将二氧化碳送入二氧化循环管中，并通过二氧化碳循环管33送入液态二氧化碳制造器12中，其中二氧化碳循环管33能够与冷水管进行冷量交换，以降低二氧化碳循环管33内的气体温度，以减少液态二氧化碳制造器12的功耗，从而形成循环回收再利用。通过上述方案，能够将清洗机中干冰制造装置1与干冰清洗装置2的尾气资源进行回收再利用，减少二氧化碳排放，并配合冷量回收与交换，减少干冰制造功耗以及循环水池31制冷的功耗，具有提高其节能环保效果的优点。
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种固态CO2清洗机的尾气处理系统，包括干冰制造装置(1)、与干冰制造装置(1)连接的干冰清洗装置(2)以及用于回收尾气的尾气装置(3)，其特征在于，所述干冰制造装置(1)上设有尾气输送管(4)，所述干冰清洗装置(2)上设有清洗密封室(21)，所述清洗密封室(21)上设有气体回收管(5)，所述气体回收管(5)连接有用于过滤杂质的过滤装置(6)，所述过滤装置(6)上连接有气体输送管(7)，所述尾气装置(3)包括循环水池(31)、二氧化碳提纯器(32)以及二氧化碳循环管(33)，所述尾气输送管(4)盘绕于循环水池(31)内，且所述气体输送管(7)与二氧化碳提纯器(32)连接，所述二氧化碳提纯器(32)上设有二氧化碳输出管(8)，所述尾气输送管(4)直接与二氧化碳循环管(33)连接，所述二氧化碳输出管(8)与二氧化碳循环管(33)连接，所述二氧化碳循环管(33)与干冰制造装置(1)连接。
  2. 根据权利要求1所述的一种固态CO2清洗机的尾气处理系统，其特征在于，所述干冰制造装置(1)包括气态二氧化碳供给器(11)、液态二氧化碳制造器(12)以及干冰压缩器(13)，所述尾气输送管(4)与干冰压缩器(13)的排气口连接，所述气态二氧化碳供给器(11)通过连接管(14)与液态二氧化碳制造器(12)连接，所述液态二氧化碳制造器(12)通过输液管(15)与干冰压缩器(13)连接，所述尾气输送管(4)位于循环水池(31)前的部分缠绕于输液管(15)上，所述二氧化碳循环管(33)与液态二氧化碳制造器(12)连接，且所述二氧化碳循环管(33)上设有换热器一(16)，所述连接管(14)与换热器一(16)连接后连接至液态二氧化碳制造器(12)上。
  3. 根据权利要求2所述的一种固态CO2清洗机的尾气处理系统，其特征在于，所述循环水池(31)上设有冷水循环管(311)，所述冷水循环管(311)的两端分别与循环水池(31)的进水口与出水口连接，所述冷水循环管(311)上设有换热器二(312)与换热器三(313)，所述二氧化碳循环管(33)与 连接管(14)位于换热器一(16)之后的部分分别通入换热器二(312)与换热器三(313)后连接至液态二氧化碳制造器(12)上。
  4. 根据权利要求2所述的一种固态CO2清洗机的尾气处理系统，其特征在于，所述尾气输送管(4)与输液管(15)相互连接的部分外包裹有保温棉(9)。
  5. 根据权利要求1所述的一种固态CO2清洗机的尾气处理系统，其特征在于，所述尾气输送管(4)位于循环池之后的部分设有换热器四(41)，所述二氧化碳输出管(8)与换热器四(41)连接后连接至干冰制造器上。
  6. 根据权利要求1所述的一种固态CO2清洗机的尾气处理系统，其特征在于，还包括一控制系统(10)，所述尾气输送管(4)位于循环水池(31)的前后两侧上均设有电控阀一(101)以及温度传感器(102)，所述温度传感器(102)与控制系统(10)连接，所述电控阀一(101)受控于控制系统(10)上。
  7. 根据权利要求6所述的一种固态CO2清洗机的尾气处理系统，其特征在于，所述气体输送管(7)与二氧化碳循环管(33)上均设有电控阀二(103)，所述电控阀二(103)受控于控制系统(10)上。
  8. 根据权利要求1所述的一种固态CO2清洗机的尾气处理系统，其特征在于，所述过滤装置(6)包括与气体回收管(5)连接的过滤室(61)以及设于过滤室(61)内的多个过滤网(62)，所述过滤室(61)由隔离网(63)分为固体隔离腔(611)与气体流通腔(612)，多个所述过滤网(62)阵列设于气体流通腔(612)内，且所述过滤网(62)的过滤网(62)孔小于隔离网(63)的过滤网(62)孔设置。
  9. 根据权利要求8所述的一种固态CO2清洗机的尾气处理系统，其特征在于，所述固体隔离腔(611)底部设有用于容纳被过滤固体的固体沉积槽(613)。
  10. 根据权利要求1所述的一种固态CO2清洗机的尾气处理系统，其特征在于，所述清洗密封室(21)上设有可开启或关闭的密封门(22)，且所述密封门(22)上设有观察窗(23)。
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CN207276208U (zh) * 2017-06-13 2018-04-27 无锡市永捷自动化设备有限公司 一种干冰机气态co2尾气回收装置
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