WO2021196423A1 - 一种循环式固态co2清洗系统 - Google Patents
一种循环式固态co2清洗系统 Download PDFInfo
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- WO2021196423A1 WO2021196423A1 PCT/CN2020/097983 CN2020097983W WO2021196423A1 WO 2021196423 A1 WO2021196423 A1 WO 2021196423A1 CN 2020097983 W CN2020097983 W CN 2020097983W WO 2021196423 A1 WO2021196423 A1 WO 2021196423A1
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- dry ice
- cleaning
- pipe
- carbon dioxide
- cleaning chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0092—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by cooling
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- 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
Definitions
- the present invention relates to the technical field of dry ice cleaning, and more specifically, it relates to a circulating solid CO 2 cleaning system.
- Dry ice blast cleaning also known as cold spray, uses compressed air as a power and carrier, and uses dry ice particles as accelerated particles, sprayed onto the surface of the object to be cleaned by a dedicated jet cleaning machine, using high-speed solid dry ice
- the energy conversion of the particles' momentum change ( ⁇ mv), sublimation, melting, etc. makes the dirt, oil stains, and residual impurities on the surface of the cleaned object quickly freeze, thereby condensing, embritting, and being stripped, and at the same time, it is removed with the airflow. It will not cause any damage to the surface of the object being cleaned, especially the metal surface, and will not affect the finish of the metal surface.
- dry ice cleaning usually includes a CO 2 supply system, a vacuum system, and a cleaning system.
- the CO 2 supply system and the vacuum system are respectively connected to the cleaning system.
- the CO 2 supply system provides dry ice to the cleaning system, and the vacuum system is used to clean
- the system forms a vacuum environment, so that the workpiece can be cleaned with dry ice in the vacuum environment to improve the cleaning effect.
- the purpose of the present invention is to provide a circulating solid CO 2 cleaning system, which can recycle carbon dioxide and has the effect of saving resources.
- the present invention provides the following technical solutions:
- a circulating solid CO 2 cleaning system includes a dry ice supply device for supplying dry ice, a cleaning device connected to the dry ice supply device, and a recovery device connected to the cleaning device.
- the cleaning device includes a cleaning chamber and a cleaning chamber provided in the cleaning chamber.
- Dry ice spray head the recovery device includes a mixing recovery pipe connected to the cleaning chamber, a transfer pump arranged on the mixing recovery pipe, an impurity separation mechanism connected to the mixing recovery pipe, and a carbon dioxide recovery pipe connected to the impurity separation mechanism.
- the end of the recovery pipe away from the impurity separation mechanism is connected with a carbon dioxide purification device, and the output end of the carbon dioxide purification device is connected with the input end of the dry ice supply device.
- the impurity separation mechanism includes a filter box arranged between the mixing recovery pipe and the carbon dioxide recovery pipe, an impurity filter arranged in the filter box, and a filter arranged on one side of the impurity filter to adsorb activated carbon particles,
- the impurity filtering net is provided with multiple layers of mesh with gradually decreasing mesh size.
- the carbon dioxide purification device includes a liquefier, a rectification tank connected with the liquefier, and a reboiler connected with the rectification tank and the liquefier, and the reboiler is connected with an output for collecting purified liquid carbon dioxide.
- a liquid pipe, the other end of the liquid outlet pipe is connected with a dry ice supply device.
- the dry ice supply device includes a dry ice maker, a dry ice cutter connected to the dry ice maker, and a dry ice output pipe connected to the dry ice cutter, and the dry ice output pipe is provided with a dry ice output pipe for providing conveying pressure to the dry ice.
- An air compressor, the dry ice making machine is connected with a carbon dioxide gas source through an air inlet pipe, and the dry ice making machine is provided with a circulating air inlet for connecting with a liquid outlet pipe.
- liquid outlet pipe is wound around the air inlet pipe in a serpentine shape
- mixing recovery pipe is wound around the dry ice output pipe in a serpentine shape.
- the dry ice output pipe is provided with an insulation valve at one end connected to the dry ice pelletizer, and the dry ice output pipe is provided with a heating element for heating the dry ice output pipe.
- it also includes a controller, the mixing recovery pipe and the carbon dioxide recovery pipe are respectively provided with an electric control valve one and an electric control valve two, the electric control valve one and the electric control valve two are both controlled by the controller .
- a cleaning circulation pipe is arranged in the cleaning chamber, one end of the cleaning circulation pipe is connected to the upper part of the cleaning chamber, and the other end is connected to the lower part of the cleaning chamber, and the cleaning circulation pipe is provided with a circulating transmission pump and a safety valve.
- a rotating tray is provided in the cleaning chamber, the bottom of the rotating tray is rotated in the cleaning chamber by a rotating rod, a lower cleaning nozzle is provided in the cleaning chamber below the rotating tray, and the rotating tray is provided with A cleaning port for dry ice to pass through.
- the dry ice spray head is provided with multiple, and the dry ice spray head is configured as a movable spray head.
- the present invention has the following advantages by adopting the above technical solutions:
- the carbon dioxide gas can be pre-cooled when the inlet pipe is fed, so as to match the carbon dioxide in the outlet pipe to deliver lower temperature carbon dioxide to the dry ice maker, which is convenient
- the dry ice maker makes dry ice, which has the effect of saving resources;
- the lower temperature of the newly recovered gas is used to cool the outer wall of the dry ice conveying pipe. Compared with placing the dry ice conveying pipe at room temperature, it can ensure the dry ice conveying process. Will not be gasified to ensure the cleaning quality;
- the rotating tray By using the rotating tray to place the workpiece, it can drive the workpiece to rotate, so as to cooperate with the cleaning nozzle and the dry ice nozzle to clean the workpiece in all directions, improving the quality and efficiency of dry ice cleaning.
- Figure 1 is a schematic diagram of the structure of a circulating solid CO 2 cleaning system
- Figure 2 is a schematic diagram of the structure of the cleaning chamber in the circulating solid CO 2 cleaning system
- Fig. 3 is a schematic diagram of the structure of the impurity separation mechanism in the circulating solid CO 2 cleaning system.
- controller 6, electric control valve one; 7, electric control Valve two; 8, rotating tray; 81, cleaning port; 9, rotating rod; 91, driving motor; 10, lower cleaning nozzle.
- a circulating solid CO 2 cleaning system as shown in Figure 1, includes a dry ice supply device 1 for supplying dry ice, a cleaning device 2 connected to the dry ice supply device 1, and a recovery device 3 connected to the cleaning device 2.
- the dry ice supply The device 1 delivers dry ice to the washing device 2.
- the recovery device 3 recovers carbon dioxide into the dry ice supply device 1 to make dry ice, thereby forming a circulating dry ice washing system and improving resource utilization.
- the cleaning device 2 includes a cleaning chamber 21 and a dry ice spray head 22 set in the cleaning chamber 21.
- a rotating tray 8 is rotatably provided in the cleaning chamber 21, and workpieces can be placed on the rotating tray 8. Then, the dry ice spray head 22 sprays dry ice to clean the workpiece.
- the workpiece cleaning process can rotate with the rotation of the rotating tray 8, so as to clean in place in all directions and improve the cleaning efficiency.
- the bottom of the rotating tray 8 is rotatably arranged in the cleaning chamber 21 through a rotating rod 9.
- a drive motor 91 for driving the rotating rod 9 to rotate is provided at the bottom of the cleaning chamber 21, so as to elevate the rotating tray 8. Perform rotation.
- a lower cleaning nozzle 10 is provided in the cleaning chamber 21 at a position below the rotating tray 8.
- the lower cleaning nozzle 10 is connected to the dry ice supply device 1, and the rotating tray 8 is provided with a cleaning port 81 for dry ice to pass through, and
- the internal supports of the rotating tray 8 are all set in a grid shape to facilitate the passage of dry ice, so that the lower cleaning nozzle 10 is used to spray dry ice on the bottom of the workpiece placed on the rotating tray 8 to clean the workpiece in all directions and improve the cleaning efficiency .
- a plurality of dry ice spray heads 22 are provided, and the plurality of dry ice spray heads 22 are respectively arranged above the cleaning chamber 21 and on the inner wall of the peripheral side, and the dry ice spray heads 22 are all arranged as movable spray heads with adjustable angles, and the structure of the lower cleaning spray head 10
- the structure is consistent with the dry ice spray head 22, so that the alignment angle of the dry ice spray head 22 and the lower cleaning spray head 10 can be adjusted according to the cleaning position of the workpiece, so as to improve the cleaning efficiency.
- a cleaning circulation pipe 211 is provided in the cleaning chamber 21, one end of the cleaning circulation pipe 211 is connected above the cleaning chamber 21, the other end is connected below the cleaning chamber 21, and the cleaning circulation pipe 211 is provided There is a circulating transfer pump 212 and a safety valve 213, and the dry ice in the cleaning chamber 21 is circulated to the workpiece for repeated use and cleaning through the circulating transfer pump 212 until the dry ice is vaporized, and the safety valve 213 is closed to improve the utilization rate of dry ice.
- the recovery device 3 includes a mixing recovery pipe 31 connected to the cleaning chamber 21, a transfer pump 32 provided on the mixing recovery pipe 31, an impurity separation mechanism 33 connected to the mixing recovery pipe 31, and an impurity separation mechanism 33
- the carbon dioxide recovery pipe 34 is connected, wherein the end of the carbon dioxide recovery pipe 34 away from the impurity separation mechanism 33 is connected to the carbon dioxide purification device 4, and the output end of the carbon dioxide purification device 4 is connected to the input end of the dry ice supply device 1.
- the cleaned and vaporized carbon dioxide is sent into the mixing recovery pipe 31 through the transfer pump 32, and sent from the mixing recovery pipe 31 to the impurity separation mechanism 33, so that the impurities in the carbon dioxide are separated and precipitated by the impurity separation mechanism 33, so that the carbon dioxide is recovered through the carbon dioxide.
- the pipe 34 is sent to the carbon dioxide purification device 4 for purification, and then sent to the dry ice supply device 1 to be re-made into dry ice, forming a recycling of resources, saving energy and reducing emissions.
- the dry ice supply device 1 includes a dry ice maker 11, a dry ice cutter 12 connected to the dry ice maker 11, and a dry ice output pipe 13 connected to the dry ice cutter 12.
- the dry ice output pipe 13 is provided with
- the dry ice maker 11 is connected with a carbon dioxide source 16 through the air inlet pipe 15.
- the dry ice is made by the dry ice maker 11 and then sent to the dry ice cutter 12 to be divided into dry ice particles. Then, the air compressor 14 sends the dry ice particles to the dry ice conveying pipeline, and conveys the dry ice conveying pipeline to the cleaning device 2 for use.
- the carbon dioxide purification device 4 includes a liquefier 41, a rectification tank 42 connected to the liquefier 41, and a reboiler 43 connected to the rectification tank 42 and the liquefier 41.
- the reboiler 43 is connected to A liquid outlet pipe 44 for collecting purified liquid carbon dioxide and a nitrogen inlet pipe 45 for providing liquid nitrogen.
- the gas input from the carbon dioxide recovery pipe 34 is liquefied by using the liquefier 41, and then purified by the rectification tank 42, and then the liquid flows into the reboiler 43, and the reboiler 43 is circulated and supplied to the liquefier 41 for repeated purification.
- the purified liquid carbon dioxide is sent out from the liquid outlet pipe 44.
- the other end of the liquid outlet pipe 44 is connected to the dry ice supply device 1.
- the dry ice maker 11 is provided with a circulating inlet port 111 for connecting with the liquid outlet pipe 44 to facilitate the connection of the liquid outlet pipe 44, thereby
- the recovered and purified carbon dioxide is sent to the dry ice maker 11 to make dry ice, which forms the recycling of resources and avoids the direct discharge of carbon dioxide into the atmosphere.
- the impurity separation mechanism 33 includes a filter box 331 provided between the mixing recovery pipe 31 and the carbon dioxide recovery pipe 34, an impurity filter 332 provided in the filter box 331, and an impurity filter 332.
- One side is equipped with a filter 333 for adsorbing activated carbon particles to use the impurity filter 332 and the filter 333 to filter the impurities contained in the carbon dioxide, thereby improving the purity of the carbon dioxide and facilitating the centralized collection and processing of the impurities generated by cleaning.
- the impurity filter 332 is provided with multiple meshes with gradually decreasing mesh sizes, and the mesh sizes of each mesh are arranged in descending order from the inlet end to the outlet end to form a progressive filter, which can gradually filter impurities. , And ensure the flow speed of the airflow, which is convenient for filtering impurities and the flow of carbon dioxide.
- the bottom of the filter box 331 is arranged in a funnel shape, so that the filtered impurities fall on the bottom of the filter box 331.
- a sewage outlet 3311 for discharging impurities is opened at the bottom of the filter box 331, and a sewage valve 3312 is provided on the sewage outlet 3311, so that the impurities can be discharged by opening the sewage valve 3312, which is convenient for the staff to collect the impurities and lift the useful part of the impurities. Use resources wisely.
- the outlet pipe 44 can be wound around the intake pipe 15 in a serpentine shape, and the mixing recovery pipe 31 is in the form of a snake.
- the shape is wound on the dry ice output pipe 13, so that the low temperature of the liquid outlet pipe 44 pre-cools the carbon dioxide on the intake pipe 15, which is convenient for the dry ice maker 11 to quickly make dry ice; and the mixed recovery pipe 31 is used to ensure the dry ice output pipe 13
- the surrounding temperature is lower than the normal temperature of the outdoor environment to ensure that the dry ice is not vaporized by the temperature during the transportation process, thereby improving the cleaning effect of the workpiece.
- the dry ice output pipe 13 is provided with a heating dry ice output pipe
- the heating element 132 of 13 is arranged at one end of the dry ice output pipe 13 connected to the cleaning chamber 21, and the heating element 132 is provided with an electric heating tube to facilitate rapid heating and cooling, so as to vaporize and discharge the ice.
- the heating element 132 can heat the cleaning chamber 21 while supplying temperature, so as to ensure that the dry ice output pipe 13 and the cleaning chamber 21 both vaporize the ice, thereby facilitating repeated use of the equipment.
- a heat insulation valve 131 is provided at one end of the dry ice output pipe 13 connected to the dry ice pelletizer 12. When the heating element 132 is turned on, the heat insulation valve 131 is closed, so as to avoid temperature transmission to the dry ice supply device 1 and cause damage.
- each pipeline needs to be intelligently controlled and connected, so the system also includes a controller 5 (set by a PLC controller 5), the controller 5 and the dry ice supply device 1, the cleaning device 2, and the recovery device 3 connection, so as to facilitate automatic control and improve the intelligence of the system.
- the mixing recovery pipe 31 and the carbon dioxide recovery pipe 34 are provided with an electric control valve 6 and an electric control valve 7 respectively.
- the electric control valve 6 and the electric control valve and the safety valve 213 are all controlled by the controller 5 to It can intelligently switch the conduction of each pipeline to improve the convenience of use.
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- Chemical & Material Sciences (AREA)
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Abstract
本发明公开了一种循环式固态CO 2清洗系统,涉及干冰清洗技术领域,其技术方案要点是:包括用于供给干冰的干冰供应装置、与干冰供应装置连接的清洗装置以及与清洗装置连接的回收装置,所述清洗装置包括清洗室以及设置于清洗室内的干冰喷头,所述回收装置包括与清洗室连接的混合回收管、设置于混合回收管上的传输泵、与混合回收管连接的杂质分离机构以及与杂质分离机构连接的二氧化碳回收管,所述二氧化碳回收管远离杂质分离机构的一端连接有二氧化碳提纯装置,所述二氧化碳提纯装置的输出端与干冰供应装置的输入端连接。本发明能够循环使用二氧化碳,具有节约资源的效果。
Description
本发明涉及干冰清洗技术领域,更具体地说,它涉及一种循环式固态CO
2清洗系统。
干冰清洗(dry ice blast cleaning)又称冷喷,是以压缩空气作为动力和载体,以干冰颗粒为被加速的粒子,通过专用的喷射清洗机喷射到被清洗物体表面,利用高速运动的固体干冰颗粒的动量变化(Δmv)、升华、熔化等能量转换,使被清洗物体表面的污垢、油污、残留杂质等迅速冷冻,从而凝结、脆化、被剥离,且同时随气流清除。不会对被清洗物体表面,特别是金属表面造成任何伤害,也不会影响金属表面的光洁度。
现有技术中干冰清洗通常包括CO
2供应系统、真空系统与清洗系统,CO
2供应系统与真空系统分别连接于清洗系统上,通过CO
2供应系统给清洗系统提供干冰,并利用真空系统将清洗系统形成真空环境,从而能够在真空环境下对工件进行干冰清洗,提高清洗效果。
但是,清洗时二氧化碳直接流失,在CO
2供应系统中需要制成干冰时又要重新采集CO
2,导致资源浪费。
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循环式固态CO
2清洗系统,能够循环使用二氧化碳,具有节约资源的效果。
为实现上述目的,本发明提供了如下技术方案:
一种循环式固态CO
2清洗系统,包括用于供给干冰的干冰供应装置、与干冰供应装置连接的清洗装置以及与清洗装置连接的回收装置,所述清洗装置包括清洗室以及设置于清洗室内的干冰喷头,所述回收装置包括与清洗室连接的混合回收管、设置于混合回收管上的传输泵、与混合回收管连接的杂质 分离机构以及与杂质分离机构连接的二氧化碳回收管,所述二氧化碳回收管远离杂质分离机构的一端连接有二氧化碳提纯装置,所述二氧化碳提纯装置的输出端与干冰供应装置的输入端连接。
进一步设置:所述杂质分离机构包括设置于混合回收管与二氧化碳回收管之间的过滤箱、设置于过滤箱内的杂质过滤网以及设置于杂质过滤网一侧用于吸附活性炭颗粒的过滤器,所述杂质过滤网上设置有多层网孔大小逐渐递减的网片。
进一步设置:所述二氧化碳提纯装置包括液化器、与液化器连接的精馏罐以及与精馏罐和液化器连接的再沸器,所述再沸器上连接有用于收集提纯后液态二氧化碳的出液管,所述出液管的另一端与干冰供应装置连接。
进一步设置:所述干冰供应装置包括干冰制造机、与干冰制造机连接的干冰切粒机以及与干冰切粒机连接的干冰输出管道,所述干冰输出管道上设置有用于给干冰提供输送压力的空压机,所述干冰制造机通过进气管连接有二氧化碳气源,且所述干冰制造机上设有用于与出液管连接的循环进气端。
进一步设置:所述出液管道呈蛇形缠绕于进气管上,且所述混合回收管呈蛇形缠绕于干冰输出管道上。
进一步设置:所述干冰输出管道于干冰切粒机连接的一端设置有隔热阀,所述干冰输出管道上设置有用于加热干冰输出管道的加热件。
进一步设置:还包括一控制器,所述混合回收管与二氧化碳回收管上分别设置有电控阀一与电控阀二,所述电控阀一与电控阀二均受控于控制器上。
进一步设置:所述清洗室内设置有清洗循环管,所述清洗循环管的一端连接于清洗室上方,另一端连接于清洗室下方,且所述清洗循环管上设置有循环传输泵以及安全阀。
进一步设置:所述清洗室内设置有旋转托盘,所述旋转托盘底部通过转动杆转动设于清洗室内,所述清洗室位于旋转托盘下方的位置设置有下清洗 喷头,所述旋转托盘上开设有用于供干冰穿过的清洗口。
进一步设置:所述干冰喷头设置有多个,且所述干冰喷头设置为可移动式喷头。
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、通过混合回收管收集清洗时产生的气体,送入杂质分离机构过滤后,由二氧化碳提纯装置将气体提纯,随后送入干冰供应装置制成干冰,形成二氧化碳的循环使用,具有节约资源的效果;
2、通过过滤网与过滤器的配合,提高对气体杂质的过滤效果,且网孔逐层递减的网片,保证气流的顺利流通,以便于过滤气体,将回收的二氧化碳送入二氧化碳提纯装置提纯,提高提纯的便捷性;
3、通过将二氧化碳提纯装置中的出液管缠绕于进气管上,能够给进气管进气时预冷二氧化碳气体,从而配合出液管中的二氧化碳给干冰制造机输送温度较低的二氧化碳,便于干冰制造机制成干冰,具有节约资源的效果;
4、通过将混合回收管缠绕于干冰输送管道上,利用刚回收的气体较低的温度来给干冰输送管道外壁降温,相较于将干冰输送管道置于常温下,更能保证干冰输送过程中不被气化,保证清洗质量;
5、通过采用旋转托盘放置工件,能够带动工件转动,从而配合下清洗喷头与干冰喷头全方位对工件进行清洗,提高干冰清洗质量以及效率。
图1为循环式固态CO
2清洗系统的结构示意图;
图2为循环式固态CO
2清洗系统中关于清洗室的结构示意图;
图3为循环式固态CO
2清洗系统中关于杂质分离机构的结构示意图。
图中:1、干冰供应装置;11、干冰制造机;111、循环进气端;12、干冰切粒机;13、干冰输出管道;131、隔热阀;132、加热件;14、空压机;15、进气管;16、二氧化碳气源;2、清洗装置;21、清洗室;211、清洗循 环管;212、循环传输泵;213、安全阀;22、干冰喷头;3、回收装置;31、混合回收管;32、传输泵;33、杂质分离机构;331、过滤箱;3311、排污口;3312、排污阀;332、杂质过滤网;333、过滤器;34、二氧化碳回收管;4、二氧化碳提纯装置;41、液化器;42、精馏罐;43、再沸器;44、出液管;45、进氮管;5、控制器;6、电控阀一;7、电控阀二;8、旋转托盘;81、清洗口;9、转动杆;91、驱动马达;10、下清洗喷头。
参照图1至图3对循环式固态CO
2清洗系统做进一步说明。
一种循环式固态CO
2清洗系统,如图1所示,包括用于供给干冰的干冰供应装置1、与干冰供应装置1连接的清洗装置2以及与清洗装置2连接的回收装置3,干冰供应装置1向清洗装置2输送干冰,由清洗装置2清洗使用后,回收装置3回收二氧化碳至干冰供应装置1内制成干冰,从而形成循环式干冰清洗系统,提高资源利用率。
如图1和图2所示,清洗装置2包括清洗室21以及设置于清洗室21内的干冰喷头22,在清洗室21内转动设置有旋转托盘8,能够将工件放置于旋转托盘8上,随后由干冰喷头22喷射干冰对工件进行清洗,工件清洗的过程能够随着旋转托盘8的转动而转动,以便于全方位清洗到位,提高清洗效率。
如图2所示,具体的,旋转托盘8底部通过转动杆9转动设置于清洗室21内,在清洗室21内底部设有用于驱动转动杆9转动的驱动马达91,从而架高旋转托盘8进行转动。其中,在清洗室21位于旋转托盘8下方的位置处设置有下清洗喷头10,下清洗喷头10与干冰供应装置1连接,在旋转托盘8上开设有用于供干冰穿过的清洗口81,且旋转托盘8内部支撑处均设为网格状,以便于干冰穿过,从而利用下清洗喷头10对放置于旋转托盘8上的工件底部喷射干冰进行清洗,从而全方位对工件清洗,提高清洗效率。干冰喷头22设置有多个,多个干冰喷头22分别设置于清洗室21的上方以及周侧内壁 上,且干冰喷头22均设置为角度可调节的可移动式喷头,而下清洗喷头10的结构与干冰喷头22结构一致,从而能够根据工件清洗位置,调整干冰喷头22与下清洗喷头10的对位角度,以提高清洗效率。
如图2所示,进一步的,在清洗室21内设置有清洗循环管211,清洗循环管211的一端连接于清洗室21上方,另一端连接于清洗室21下方,且清洗循环管211上设置有循环传输泵212以及安全阀213,通过循环传输泵212将清洗室21内的干冰循环送至工件上重复利用清洗,直至干冰气化,关闭安全阀213,提高干冰利用率。
如图1所示,回收装置3包括与清洗室21连接的混合回收管31、设置于混合回收管31上的传输泵32、与混合回收管31连接的杂质分离机构33以及与杂质分离机构33连接的二氧化碳回收管34,其中,二氧化碳回收管34远离杂质分离机构33的一端连接有二氧化碳提纯装置4,二氧化碳提纯装置4的输出端与干冰供应装置1的输入端连接。通过传输泵32将清洗后气化的二氧化碳送入混合回收管31内,由混合回收管31送至杂质分离机构33,以利用杂质分离机构33将二氧化碳中的杂质分离沉淀,使得二氧化碳经过二氧化碳回收管34送至二氧化碳提纯装置4进行提纯,随后送入干冰供应装置1中重新制成干冰,形成资源的循环利用,节能减排。
如图1所示,干冰供应装置1包括干冰制造机11、与干冰制造机11连接的干冰切粒机12以及与干冰切粒机12连接的干冰输出管道13,在干冰输出管道13上设置有用于给干冰提供输送压力的空压机14,干冰制造机11通过进气管15连接有二氧化碳气源16,由干冰制造机11制成干冰后送入干冰切粒机12进行分切形成干冰颗粒,随后由空压机14将干冰颗粒送至干冰输送管道上,由干冰输送管道输送至清洗装置2进行使用。
如图1所示,二氧化碳提纯装置4包括液化器41、与液化器41连接的精馏罐42以及与精馏罐42和液化器41连接的再沸器43,再沸器43上连接有 用于收集提纯后液态二氧化碳的出液管44以及提供液氮的的进氮管45。通过利用液化器41将二氧化碳回收管34输入的气体液化,随后由精馏罐42提纯处理后,液体再流入再沸器43中,再沸器43循环供入液化器41中,循环多次提纯后,由出液管44将提纯的液态二氧化碳送出。其中,出液管44的另一端与干冰供应装置1连接,具体的,在干冰制造机11上设有用于与出液管44连接的循环进气端111,以便于连接出液管44,从而利用回收并提纯的二氧化碳送入干冰制造机11中制成干冰,形成资源的循环使用,避免二氧化碳直接排入大气。
如图1和图3所示,杂质分离机构33包括设置于混合回收管31与二氧化碳回收管34之间的过滤箱331、设置于过滤箱331内的杂质过滤网332以及设置于杂质过滤网332一侧并用于吸附活性炭颗粒的过滤器333,以利用杂质过滤网332与过滤器333将二氧化碳中夹有的杂质过滤,提高二氧化碳纯度并便于对清洗产生的杂质进行集中收集处理。其中,杂质过滤网332上设置有多层网孔大小逐渐递减的网片,各个网片的网孔大小依次由进气端向出气端方向递减排列,以形成递进式过滤,能够逐步过滤杂质,并保证气流的流动速度,便于过滤杂质以及二氧化碳的流动。
如图3所示,进一步的,过滤箱331底部呈漏斗状设置,以便于过滤的杂质落在过滤箱331的底部上。在过滤箱331底部开设有用于排出杂质的排污口3311,排污口3311上设置有排污阀3312,从而可通过打开排污阀3312将杂质排出,便于工作人员集中回收杂质,以提起杂质中有用部分,合理利用资源。
如图1所示,由于在清洗室21内清洗,回收的二氧化碳整体温度较室外环境常温更低,因此可将出液管44呈蛇形缠绕于进气管15上,且混合回收管31呈蛇形缠绕于干冰输出管道13上,使得出液管44的低温来给进气管15上的二氧化碳预冷处理,便于干冰制造机11快速制成干冰;而混合回收管31 则用于保证干冰输出管道13的周围温度低于室外环境常温,保证干冰输送过程中不被温度影响而气化,从而提高对工件的清洗效果。
如图1所示,在长期使用下,干冰输出管道13以及清洗室21内部可能粘结有冰块,因此为了便于干冰清洗系统的长期使用,在干冰输出管道13上设置有用于加热干冰输出管道13的加热件132,加热件132设置于干冰输出管道13连接于清洗室21的一端,且加热件132采用电加热管设置,以便于快速加热降温,从而将冰块气化排出。加热件132供温的同时能够给清洗室21加热,保证干冰输出管道13与清洗室21内均将冰块气化,从而便于设备的重复使用。进一步的,在干冰输出管道13于干冰切粒机12连接的一端设置有隔热阀131,开启加热件132时,将隔热阀131关闭,从而避免温度传递至干冰供应装置1上造成损害。
如图1所示,各个管路需要进行智能化控制导通,因此该系统还包括一控制器5(采用PLC控制器5设置),控制器5与干冰供应装置1、清洗装置2以及回收装置3连接,从而便于自动化控制,提高系统使用的智能性。在混合回收管31与二氧化碳回收管34上分别设置有电控阀一6与电控阀二7,电控阀一6、电控阀与安全阀213二均受控于控制器5上,以便于智能切换各个管路的导通,提高使用的便捷性。
工作原理:使用时,将工件放置于清洗室21的旋转托盘8上,由旋转托盘8带动工件转动,配合多个干冰喷头22与下清洗喷头10进行干冰清洗,以全方位给工件提供干冰清洗,提高清洗效率与清洗质量。清洗过程中产生混有杂质的气体被混合回收管31回收并送入杂质分离机构33内进行过滤,杂质过滤后气体被送入二氧化碳提纯装置4提纯,提纯后的二氧化碳通过出液管44送入干冰供应装置1中重新制成干冰,从而能够循环使用二氧化碳,具有节约资源的效果。
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)
- 一种循环式固态CO 2清洗系统,其特征在于,包括用于供给干冰的干冰供应装置(1)、与干冰供应装置(1)连接的清洗装置(2)以及与清洗装置(2)连接的回收装置(3),所述清洗装置(2)包括清洗室(21)以及设置于清洗室(21)内的干冰喷头(22),所述回收装置(3)包括与清洗室(21)连接的混合回收管(31)、设置于混合回收管(31)上的传输泵(32)、与混合回收管(31)连接的杂质分离机构(33)以及与杂质分离机构(33)连接的二氧化碳回收管(34),所述二氧化碳回收管(34)远离杂质分离机构(33)的一端连接有二氧化碳提纯装置(4),所述二氧化碳提纯装置(4)的输出端与干冰供应装置(1)的输入端连接。
- 根据权利要求1所述的一种循环式固态CO 2清洗系统,其特征在于,所述杂质分离机构(33)包括设置于混合回收管(31)与二氧化碳回收管(34)之间的过滤箱(331)、设置于过滤箱(331)内的杂质过滤网(332)以及设置于杂质过滤网(332)一侧用于吸附活性炭颗粒的过滤器(333),所述杂质过滤网(332)上设置有多层网孔大小逐渐递减的网片。
- 根据权利要求1所述的一种循环式固态CO 2清洗系统,其特征在于,所述二氧化碳提纯装置(4)包括液化器(41)、与液化器(41)连接的精馏罐(42)以及与精馏罐(42)和液化器(41)连接的再沸器(43),所述再沸器(43)上连接有用于收集提纯后液态二氧化碳的出液管(44),所述出液管(44)的另一端与干冰供应装置(1)连接。
- 根据权利要求3所述的一种循环式固态CO 2清洗系统,其特征在于,所述干冰供应装置(1)包括干冰制造机(11)、与干冰制造机(11)连接的干冰切粒机(12)以及与干冰切粒机(12)连接的干冰输出管道(13),所述干冰输出管道(13)上设置有用于给干冰提供输送压力的空压机(14),所述干冰制造机(11)通过进气管(15)连接有二氧化碳气源(16),且所述干冰制造机(11)上设有用于与出液管(44)连接的循环进气端(111)。
- 根据权利要求4所述的一种循环式固态CO 2清洗系统,其特征在于,所述出液管(44)道呈蛇形缠绕于进气管(15)上,且所述混合回收管(31)呈蛇形缠绕于干冰输出管道(13)上。
- 根据权利要求4所述的一种循环式固态CO 2清洗系统,其特征在于,所述干冰输出管道(13)于干冰切粒机(12)连接的一端设置有隔热阀(131),所述干冰输出管道(13)上设置有用于加热干冰输出管道(13)的加热件(132)。
- 根据权利要求1所述的一种循环式固态CO 2清洗系统,其特征在于,还包括一控制器(5),所述混合回收管(31)与二氧化碳回收管(34)上分别设置有电控阀一(6)与电控阀二(7),所述电控阀一(6)与电控阀二(7)均受控于控制器(5)上。
- 根据权利要求1-7任意一项所述的一种循环式固态CO 2清洗系统,其特征在于,所述清洗室(21)内设置有清洗循环管(211),所述清洗循环管(211)的一端连接于清洗室(21)上方,另一端连接于清洗室(21)下方,且所述清洗循环管(211)上设置有循环传输泵(212)以及安全阀(213)。
- 根据权利要求1-7任意一项所述的一种循环式固态CO 2清洗系统,其特征在于,所述清洗室(21)内设置有旋转托盘(8),所述旋转托盘(8)底部通过转动杆(9)转动设于清洗室(21)内,所述清洗室(21)位于旋转托盘(8)下方的位置设置有下清洗喷头(10),所述旋转托盘(8)上开设有用于供干冰穿过的清洗口(81)。
- 根据权利要求9所述的一种循环式固态CO 2清洗系统,其特征在于,所述干冰喷头(22)设置有多个,且所述干冰喷头(22)设置为可移动式喷头。
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