WO2015115728A1 - 방사성탄소 연대측정 용 시료전처리를 위한 전자동 환원장치 - Google Patents
방사성탄소 연대측정 용 시료전처리를 위한 전자동 환원장치 Download PDFInfo
- Publication number
- WO2015115728A1 WO2015115728A1 PCT/KR2014/011748 KR2014011748W WO2015115728A1 WO 2015115728 A1 WO2015115728 A1 WO 2015115728A1 KR 2014011748 W KR2014011748 W KR 2014011748W WO 2015115728 A1 WO2015115728 A1 WO 2015115728A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon dioxide
- liquid nitrogen
- fully automatic
- thermocouple
- reducing device
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4022—Concentrating samples by thermal techniques; Phase changes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4022—Concentrating samples by thermal techniques; Phase changes
- G01N2001/4033—Concentrating samples by thermal techniques; Phase changes sample concentrated on a cold spot, e.g. condensation or distillation
Definitions
- the present invention relates to a fully automatic reducing apparatus for sample preparation for radiocarbon dating, and more particularly, to prevent cooling of peripheral devices of the liquid nitrogen container by scattering of liquid nitrogen supplied to the liquid nitrogen container of the carbon dioxide collector.
- the present invention relates to a fully automatic reducing device for sample preparation for radiocarbon dating, which prevents heating of a peripheral device through heat of a reactor when heating a reactor of a reduction reactor.
- Radiocarbon dating used to date archaeological artifacts, is based on the principle that radioactive carbon decays at a constant rate after an organism dies.
- sample pretreatment process In order to date a sample such as an artifact using accelerator mass spectrometry, one of radiocarbon dating methods, carbon must first be extracted from the sample. This is called a sample pretreatment process, and generally consists of a chemical pretreatment process, a vacuum combustion process, and a reduction process.
- the chemical pretreatment process removes impurities from the sample to be analyzed to prevent errors caused by contaminants in the analysis process. It enhances the reliability of analysis by removing impurities contained in the sample through well-known washing process, chemical treatment and drying process. .
- the vacuum combustion process refers to a process of obtaining carbon dioxide by burning a pretreated sample in a vacuum. Put the pretreated sample, CuO powder and silver wire into the quartz tube, seal it with a torch under vacuum, and put the sealed quartz tube into a Muffle furnace for 2 hours at about 850 °C. During combustion, high-purity oxygen is released from the copper oxide powder, which oxidizes the carbon in the raw material at high temperatures to produce carbon dioxide. Gifts also inhibit and precipitate the production of sulfur, a byproduct of combustion.
- Carbon dioxide generated in the above process is passed through a cooling dryer mixed with a few dry ice and alcohol, and then extracted by solidifying only carbon dioxide using liquid nitrogen.
- the reduction process refers to the process of extracting carbon powder graphite through the reaction of CO 2 + 2H 2 ⁇ C + 2H 2 O by heating a mixed gas mixed with carbon dioxide and hydrogen and an iron powder catalyst in an airtight container.
- the graphitization process as described above was performed manually for each sample.
- the vacuum combustion process puts the sample, copper oxide and silver into a vacuum tube, seals it with a torch in a vacuum state, and then burns it.
- LN2 liquid nitrogen
- alcohol (alcohol) trap and LN2 trap were breaking into the liquid nitrogen (LN2) / alcohol (alcohol) trap and LN2 trap in order to solidify only the pure carbon dioxide (CO 2 ) was collected in the carbon dioxide storage tank.
- the vacuum combustion process and the reduction process are carried out in two stages for each sample, which is cumbersome, contaminated in the middle, and requires a lot of time.
- a gas other than carbon dioxide is mixed by foreign substances mixed in the sample, it is difficult to identify and not easy to remove.
- the sulfide gas is mixed, there is a problem that the reduction reaction itself rarely occurs.
- the graphitization device as shown in Figure 1, the primary combustion element 11 and the combustion gas generated in the sample combustion unit 11 for burning a sample by using a gas chromatography method
- An element analyzer 10 including a combustion gas separation unit 12 to be removed;
- a carbon dioxide collector (30) for selecting and collecting only carbon dioxide from the combustion gas passing through the element analyzer (10);
- a reduction reactor 40 for reducing carbon dioxide collected through the carbon dioxide collector 30 to graphite;
- a controller 50 for controlling the operations of the element analyzer 10, the carbon dioxide collector 30, and the reduction reactor 40. It is configured to include.
- the combustion gas of the organic material is first removed by using the gas chromatography function of the elemental analyzer (EA), and then the carbon dioxide is trapped to minimize the possibility of incorporation of impurities, and the graphitization process.
- EA elemental analyzer
- An object of the present invention is to provide a radiocarbon regimen having a scattering prevention sponge in a liquid nitrogen container for preventing the scattering of liquid nitrogen supplied to the liquid nitrogen container, and a screen for blocking heat exchange between the liquid nitrogen container and the peripheral device. It is to provide a fully automatic reducing device for sample preparation for measurement.
- the present invention provides a fully automatic reducing apparatus for sample pretreatment for radiocarbon dating having a heat shield curtain for blocking heat exchange between a reaction furnace for heating carbon dioxide and a cooling tank for cooling carbon dioxide during a reduction reaction of carbon dioxide.
- thermocouple can be safely introduced into the reactor in the horizontal direction, and the surface temperature of the measurement object provided in the reactor can be accurately measured under constant conditions at all times, and it is not a method of attaching a thermocouple by welding or bolting.
- the present invention provides a fully automatic reducing apparatus including a thermocouple measuring apparatus using a pressurization that can be fixed simply and easily through a rotary detachable method and can measure the surface temperature of a measurement target according to the pressurization.
- Fully automatic reduction apparatus of the present invention includes a carbon dioxide collector for selecting and collecting only carbon dioxide from the combustion gas to extract and graphitize the carbon in the organic sample, and a reduction reactor for reducing the carbon dioxide collected through the carbon dioxide collector to graphite
- the carbon dioxide collector Carbon dioxide trap for solidifying the combustion gas; A liquid nitrogen container for cooling the carbon dioxide trap; A liquid nitrogen injection unit for injecting liquid nitrogen into the liquid nitrogen container; And a scattering preventing member provided on the liquid nitrogen container and disposed adjacent to the liquid nitrogen injection unit. It includes.
- the scattering prevention member is made of a porous material for suppressing the scattering of the liquid nitrogen by absorbing and discharging the liquid nitrogen supplied from the liquid nitrogen injection unit, the void is a sponge of 1 ⁇ 4mm.
- the shatterproof member is formed of a thread-shape woven by weaving several strands of yarn.
- the carbon dioxide trap may further include a screen provided on the carbon dioxide trap to seal the open surface of the liquid nitrogen container when the carbon dioxide trap is accommodated in the liquid nitrogen container; It includes.
- the carbon dioxide trap is provided with a plurality of spaced apart a predetermined distance
- the screen is provided with a plurality of fitting so as to fit in each of the carbon dioxide trap
- the center has a plate-shaped insertion hole having a diameter corresponding to the diameter of the carbon dioxide trap Is done.
- the cooling gas discharge device is disposed directly above the scattering prevention member.
- the reduction reactor may further include a reaction vessel in which a reduction reaction of carbon dioxide supplied from the carbon dioxide trap occurs; A reactor for supplying heat to the reaction vessel; A cooling tank cooling the carbon dioxide trap to remove water generated during the reduction reaction; A pressure controller for controlling the pressure inside the reduction reactor; And a heat shield curtain provided on the reaction vessel to block heat exchange between the reactor and the reaction vessel and the carbon dioxide trap, the cooling tank, and the pressure control unit. It includes.
- the cooling gas discharge device is located in the region in which the liquid nitrogen container and the cooling tank are partitioned through the heat cut curtain so as to suck and discharge the cooling gas generated in the liquid nitrogen container or the cooling tank to the outside. do.
- one end portion of the heat shield curtain is hinged to the reduction reactor so as to be opened and closed.
- the fully automatic reducing device includes a thermocouple fixing device, the thermocouple fixing device, the hollow is formed so that the thermocouple is drawn in, is attached to the outer surface of the reactor, provided with a projection projecting outwardly facing Fixed member; A connector to which the thermocouple is connected in an inner space, and which is coupled to the fixing member in a rotational detachable manner so that the thermocouple is inserted into and fixed in the reactor; And an urging member having an elastic member urging the thermocouple in the pulling direction. It includes.
- the connector may include a thermocouple fixing part formed of a metal having a high heat transfer rate, formed in a cylindrical shape having a hollow at one side thereof, and having a fastening groove formed on an outer surface thereof; And a rotating member formed in a cylindrical shape having a hollow to surround a predetermined portion of the thermocouple fixing portion, and having a protrusion formed therein to be coupled to the coupling groove of the thermocouple fixing portion. It includes.
- the rotating member has an insulating hole cut in the 'b' shape or oblique direction on the outer surface so as to be engaged with the projection of the fixing member.
- the rotating member is rotated in the 'B' pattern to be attached and detached from the fixing member.
- the fixing member the through-hole is formed so that the thermocouple is introduced through.
- the automatic reduction device for sample preparation for radiocarbon dating according to the present invention has the effect of preventing the peripheral device from being cooled by liquid nitrogen by preventing the scattering of liquid nitrogen supplied to the liquid nitrogen container. .
- the sealing member which is one of the peripheral devices, is cooled, the sealing force of the sealing member is prevented from being lowered.
- thermocouple fixing device it is possible to accurately measure the surface temperature of the measurement target provided in the reactor by introducing the thermocouple safely in the horizontal direction through the above-described thermocouple fixing device.
- FIG. 1 is a schematic block diagram of a conventional fully automatic reducing device
- FIG. 2 is a schematic block diagram of a fully automatic reduction apparatus according to an embodiment of the present invention.
- FIG. 3 is a schematic perspective view of a carbon dioxide collector according to an embodiment of the present invention.
- FIG. 4 is a partial perspective view of a carbon dioxide collector
- FIG. 5 is a partial cross-sectional view of the carbon dioxide collector.
- FIG. 6 is a schematic perspective view of a reduction reactor according to an embodiment of the present invention (when combined with a reactor)
- FIG. 7 is another schematic perspective view of a reduction reactor (when separating reactor)
- FIG 8 is another schematic perspective view of the reduction reactor (opening the heat shield curtain)
- FIG. 9 is a partial cross-sectional view of a reduction reactor.
- thermocouple fixing device 10 is a schematic perspective view of a thermocouple fixing device according to an embodiment of the present invention.
- thermocouple holding device 11 is an exploded perspective view of a thermocouple holding device
- thermocouple fixing device 12 is a flowchart illustrating a fastening process of the rotating member and the fixing member of the thermocouple fixing device by way of example.
- thermocouple fixing device 110 fixing member
- thermocouple fixing part 120 connector 122 thermocouple fixing part
- thermocouple 210 thermocouple element wire
- liquid nitrogen container 341 liquid nitrogen injection unit
- reaction vessel 440 cooling tank
- the above-mentioned conventional graphitization apparatus is provided with a liquid nitrogen container for collecting carbon dioxide by cooling a sample gas in a carbon dioxide collector, but the liquid nitrogen supplied to the liquid nitrogen container is supplied to the liquid nitrogen container because the temperature is lower than -200 ° C.
- the liquid nitrogen supplied at high pressure is scattered in the liquid nitrogen container and the peripheral device of the liquid nitrogen container, for example, the sealing member for cooling is lost, the sealing force of the sealing member is lowered as the elastic force of the sealing member is lost. The phenomenon occurred.
- the reduction reactor is equipped with a reactor for supplying the heat required for the reduction reaction of carbon dioxide and a cooling tank for cooling the carbon dioxide to remove the water generated during the reduction reaction of carbon dioxide, the reactor is heated to a high temperature and the cooling tank to a low temperature Due to the cooling, the heat exchange between the reactor and the cooling tank may cause a decrease in the heating efficiency of the reactor and the cooling efficiency of the cooling tank.
- the fully automatic reduction apparatus according to an embodiment of the present invention has been conceived to improve the above phenomenon, and will be described in detail below with reference to the drawings for the fully automatic reduction apparatus according to an embodiment of the present invention as described above.
- the automatic reduction apparatus includes a sample combustion unit 610 for burning the collected sample and a combustion gas separation unit 620 for removing impurities from the combustion gas generated in the sample combustion unit 610.
- An elemental analyzer configured to include (Elemental Analyzer: EA, 600); A carbon dioxide collector (300) for collecting only carbon dioxide from the gas passing through the element analyzer (600); A reduction reactor 400 for reducing the carbon dioxide collected through the carbon dioxide collector 300 to graphite; And a control unit 500 for controlling the elemental analyzer 600, the carbon dioxide collector 300, and the reduction reactor 400, adjusting the reaction temperature and pressure, the mixing ratio of hydrogen gas, and recording the reaction process. It is configured to include.
- the element analyzer 600 includes a sample combustion unit 610 and a combustion gas separation unit 620.
- a sample combustion unit 610 a tin thin film (foil) is heated on a quartz tube heated to about 900 ° C. in which high-purity helium carrier gas flows. Along with the sample wrapped in), high-purity oxygen is blown to combust the sample to be used for carbon dating.
- the temperature rises to 1500 ° C instantaneously due to violent exothermic reactions.
- the combustion gas generated by the sample combustion unit 610 is supplied to the combustion gas separation unit 620 connected to the sample combustion unit 610 to primarily remove impurities contained in the combustion gas.
- the combustion gas separation unit 620 primarily removes carbon dioxide from the combustion gas supplied from the sample combustion unit 610 by removing impurities contained in the combustion gas by using gas chromatography.
- the carbon dioxide separated through the combustion gas separation unit 620 includes a trace amount of impurities such as nitrogen and hydrogen, including helium, which is a carrier gas, and oxygen injected for combustion, and the helium, oxygen, and other trace impurities
- the carbon dioxide gas is transferred to the carbon dioxide collector 300.
- the carbon dioxide collector 300 is connected to the element analyzer 600 to collect only carbon dioxide from carbon dioxide gas containing helium, oxygen, and other trace impurities supplied from the element analyzer 600.
- Figure 3 is a schematic perspective view of a carbon dioxide collector 300 according to an embodiment of the present invention
- Figure 4 is a partial perspective view of the carbon dioxide collector 300 according to an embodiment of the present invention
- Figure 5 is a partial cross-sectional view of the carbon dioxide collector 300 according to an embodiment of the present invention.
- the carbon dioxide collector 300 supplies a carbon dioxide trap 330 that solidifies carbon dioxide, a liquid nitrogen container 340 that cools the temperature of the carbon dioxide trap 330, and supplies the collected carbon dioxide to a reduction reactor. It consists of a first valve 310 and a second valve 320 for discharging trace impurities such as helium, oxygen and nitrogen, hydrogen separated from the carbon dioxide, the carbon dioxide supplied through the element analyzer 600 (see FIG. 2) After passing through the carbon dioxide trap 330 immersed in the liquid nitrogen container 340 to make a solid state, high purity carbon dioxide is obtained by removing helium, oxygen and other trace gases using a vaporization temperature difference.
- trace impurities such as helium, oxygen and nitrogen, hydrogen separated from the carbon dioxide
- the liquid nitrogen container 340 is made of quartz in the form of a double tube to insulate the liquid nitrogen filled in the inner circumference, and the inside of the double tube may be formed in a vacuum (V).
- V vacuum
- the liquid nitrogen container 340 is configured to be supplied to the liquid nitrogen container 340 through the liquid nitrogen injection unit 341 so that the liquid nitrogen of a certain level is accommodated.
- the liquid nitrogen container 340 is configured to move up and down relative to the carbon dioxide trap 330. Accordingly, the liquid nitrogen container 340 may selectively accommodate or detach the carbon dioxide trap 330 therein.
- the carbon dioxide trap 330 is accommodated in the liquid nitrogen container 340 by the lifting and lowering of the liquid nitrogen container 340, and the carbon dioxide trap 330 is the liquid nitrogen container 340 by the falling of the liquid nitrogen container 340. Deviates from).
- the carbon dioxide trap 330 is accommodated in the cooling tank 440 (see FIGS. 8 and 9) is configured to remove the water generated during the reduction reaction.
- the liquid nitrogen supplied from the liquid nitrogen injection unit 341 is supplied at a high pressure because it is a low temperature of about -200 ° C, and the automatic reduction apparatus of the present embodiment for preventing the scattering of the liquid nitrogen supplied at a high pressure has the following configuration.
- Have The scattering prevention member 350 may be provided in the liquid nitrogen container 340.
- Shatterproof member 350 may be applied to the porous material as a configuration for preventing the scattering of the high-pressure liquid nitrogen supplied from the liquid nitrogen injection unit 341, for example sponge or pores to form a plurality of yarns to form Bundled threads can be applied.
- the porous material is discharged into the liquid nitrogen container 340 while absorbing the liquid nitrogen discharged from the liquid nitrogen injection unit 341 into the voids therein, so that the liquid nitrogen flows into the liquid nitrogen container 340 at a high pressure.
- the pores of the porous material may be 1 ⁇ 4mm. If the air gap is less than 1mm, the supply of liquid nitrogen is not smooth, and if it exceeds 4mm, the scattering prevention effect of liquid nitrogen is lowered.
- the screen 360 is provided to prevent cold air of the liquid nitrogen container 340 from being transferred to the upper end of the carbon dioxide trap 330.
- the screen 360 may have a plate-shaped fitting hole in the center thereof, and the carbon dioxide trap 330 may be fitted into the fitting hole. Therefore, the diameter of the fitting hole is configured to be the same as the diameter of the carbon dioxide trap 330.
- the screen 360 is configured to seal the open surface of the liquid nitrogen container 340 when the carbon dioxide trap 330 is received in the liquid nitrogen container 340.
- the screen 360 may be provided in plurality so as to be fitted into the respective carbon dioxide traps 330.
- the fitting holes to be fitted to the respective carbon dioxide traps 330 must be precisely processed, and thus, manufacturing is not easy, and the intervals of the fitting holes are accurately This is because if not processed, the fitting holes are fitted to the carbon dioxide trap 330, and the load of the screen 360 is applied, and the carbon dioxide trap 330 may be damaged.
- the screen 360 may be a conventional rubber material, for example, a urethane material may be applied.
- the screen 360 as described above seals the upper open surface of the liquid nitrogen container 340 when the carbon dioxide trap 330 is accommodated due to the rise of the liquid nitrogen container 340. Accordingly, there is an effect of preventing the liquid nitrogen inside the liquid nitrogen container 340 to flow out of the liquid nitrogen container 340.
- the carbon dioxide collector 300 may be further provided with a cooling gas discharge device 370 for discharging the cooling gas generated from the liquid nitrogen container 340 to the outside.
- Cooling gas discharge device 370 may be composed of a duct and a fan for the circulation of the conventional gas, through the cooling gas discharge device 370 to prevent the peripheral device of the liquid nitrogen container 340 is cooled by the cooling gas. do.
- the duct of the cooling gas discharge device 370 may be disposed above the scattering prevention member 350 positioned in the liquid nitrogen injection unit 341. This is because scattering or outflow of liquid nitrogen may occur in the liquid nitrogen injection unit 341.
- FIG. 6 is a schematic perspective view of a reduction reactor 400 when combining a reactor 410 according to an embodiment of the present invention
- FIG. 7 schematically shows a reduction reactor 400 when separating a reactor 410.
- a perspective view is shown
- FIG. 8 is a schematic perspective view of the reduction reactor 400 when the thermal cutoff curtain 460 is opened.
- 9 is a partial perspective view of the reduction reactor 400.
- the reduction reactor 400 is connected to a reactor 410 for supplying heat required for the reaction, a reaction vessel 420 in which a carbon reduction reaction occurs, and a reaction vessel 420 to remove water generated during the reduction reaction.
- Pressure control unit 450 to make the inside of the cooling tank 440 and the reduction reactor 400 to cool the temperature of the carbon dioxide trap 330, the carbon dioxide trap 330 to around -50 °C and to measure the pressure inside It consists of
- the reactor 410 is provided with a thermocouple 200 for measuring the temperature of the reaction vessel 420 and a thermocouple fixing device 100 for fixing the thermocouple 200 and the thermocouple fixing device 100 will be described later. Let's do it.
- the cooling tank 440 is configured to be able to descend relative to the carbon dioxide trap 330. Therefore, the cooling tank 440 may selectively accommodate or detach the carbon dioxide trap 330 therein as in the liquid nitrogen container 340 described above. For example, the carbon dioxide trap 330 is accommodated in the cooling tank 440 by the lifting and lowering of the cooling tank 440, and the carbon dioxide trap 330 is separated from the cooling tank 440 by the lowering of the cooling tank 440. .
- the carbon dioxide trap 330 is accommodated in the liquid nitrogen container 340 when the carbon dioxide is collected, and the liquid nitrogen container 340 and the cooling tank 440 are switched during the reduction reaction so that the carbon dioxide trap 330 is the cooling tank 440. ) Can be accommodated.
- Reactor 410 is to supply the heat required for the carbon reduction reaction, the body is formed with a receiving groove 411 that can accommodate the reaction vessel 420 in a metal material having excellent thermal conductivity, such as silver ingot, Specific portions of 410 are provided with hot wires (not shown).
- a quartz tube is used as a space where a carbon reduction reaction occurs.
- the heat shield curtain 460 may be provided to prevent heat generated from the reactor 410 from being transferred to the carbon dioxide trap 330, the cooling tank 440, and the pressure regulator 450.
- the thermal insulation curtain 460 is disposed between the reactor 410 and the reaction vessel 420, the carbon dioxide trap 330, the cooling tank 440, and the pressure regulating unit 450, and the reaction vessel 420 penetrates. Through grooves may be formed as many as the number of reaction vessels 420.
- the thermal cut curtain 460 may be coupled to the reduction reactor 400 through the hinge coupling means 461 so as to be open and close.
- the thermal insulation curtain 460 is configured to be open and closed, and configured to facilitate maintenance of the carbon dioxide trap 330, the cooling tank 440, and the pressure regulator 450.
- the above-described cooling gas discharge device 370 is disposed in the interior space of the heat shield curtain 460, so that the low temperature nitrogen gas flowing out of the liquid nitrogen container 340 does not flow out of the heat shield curtain 460. .
- it is characterized in that it does not affect the high-temperature reaction vessel 420.
- thermocouple fixing device 100 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
- thermocouple fixing device 100 is a perspective view of a thermocouple fixing device 100 according to an embodiment of the present invention
- Figure 11 is an exploded perspective view of the thermocouple fixing device 100.
- FIG. 12 is a flowchart illustrating a fastening process of the rotating member 123 and the fixing member 110 of the thermocouple fixing device 100 by way of example.
- thermocouple fixing device 100 of the present invention includes a fixing member 110, a connector 120, and a pressing member 130.
- the fixing member 110 is attached to the outer surface of the reactor 410 (see FIG. 8) described above, and is provided such that the protrusions 111 protruding outwardly face each other.
- the connector 120 is connected to the fixing member 110 such that the thermocouple 200 is connected to the inner space, and the thermocouple 200 is inserted into the receiving groove 411 (see FIG. 9) of the reactor 410 in a horizontal direction and fixed thereto. Is fastened.
- the connector 120 includes a thermocouple fixing part 122 and a rotating member 123.
- thermocouple fixing part 122 is formed of a metal having a high heat transfer rate, and has one side formed in a cylindrical shape having a hollow, and a thermocouple 200 is connected to the inner center by welding.
- thermocouple element 210 The other end is connected to the thermocouple element 210, and serves as a medium for transferring the heat transferred from the thermocouple 200 to the thermocouple element 210 and at the same time performs a function of fixing the thermocouple 200.
- the thermocouple element 210 may be connected to a heat measuring device (not shown).
- a fastening groove 122a may be formed on an outer surface of the thermocouple fixing part 122.
- the fastening groove 122a is fastened to the protrusion 123a of the rotating member 123.
- the rotating member 123 is formed in a cylindrical shape having a hollow so as to surround a portion of the thermocouple fixing part 122, and a protrusion part 123a which is fastened to the fastening groove 122a of the thermocouple fixing part 122 is formed therein. .
- the outer surface of the rotating member 123 is formed with an insulating groove 121a to which the protrusion 111 of the fixing member 110 is inserted and fixed.
- the insulating groove 121a is formed to have a 'b' direction on the outer surface of the rotating member 123, so that one of both ends of the insulating groove 121a is protruded, the other is the insulating groove ( It is formed to fix the protrusion 111 introduced into 121a).
- the rotation member 123 is rotated and fastened after the protrusion 111 is inserted therein, and the rotation member 123 is rotated in a 'B' pattern to fix the fixing member 110. And detachable.
- the pressing member 130 performs a function of pressing the thermocouple 200 in the horizontal direction, and more specifically, includes a support plate 131 and an elastic member 132.
- the support plate 131 is formed in a ' ⁇ ' shape, the center of which protrudes, the protruding portion is introduced into the elastic member 132, the welding or fastening with one end of the elastic member 132 on the outer surface of the protruding portion Is coupled through the member.
- the elastic member 132 may be a high elastic spring, one end of which is fixed to the outer surface of the protruding portion, and the other end of the elastic member 132 is coupled to the thermocouple fixing part 122 by a welding or fastening member.
- thermocouple fixing device 100 accurately introduces the thermocouple 200 into the reaction chamber 410 in the horizontal direction so that the surface temperature of the reaction vessel 420 (see FIG. 8) provided in the reactor 410 can be accurately obtained. It can be measured.
- thermocouple can be fixed simply and easily through a rotation detachment method, rather than the method of attaching to the reactor 410 through welding or bolts.
- thermocouple by using a pressure member to provide a variable pressure to the thermocouple in contact with the surface of the object to be measured, it is possible to measure different temperatures at the surface of the object to be applied to the thermocouple to which the pressure is applied.
- a pressure member with high elastic force it is possible to measure the surface temperature when the thermocouple is in contact with the measurement object with a relatively strong pressure
- a pressure member with low elastic force the thermocouple is applied to the measurement object with a relatively weak pressure. The surface temperature at the time of contact can be measured.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Carbon And Carbon Compounds (AREA)
- Sampling And Sample Adjustment (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Description
Claims (16)
- 유기시료 내의 탄소를 추출하여 흑연화하기 위해 연소가스에서 이산화탄소만을 선별하여 포집하는 이산화탄소포집기와, 상기 이산화탄소포집기를 통해 포집된 이산화탄소를 흑연으로 환원시키는 환원반응기를 포함하는 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치에 있어서,상기 이산화탄소포집기는,연소가스를 고화하는 이산화탄소트랩;상기 이산화탄소트랩을 냉각하는 액체질소용기;상기 액체질소용기에 액체질소를 주입하는 액체질소주입부; 및상기 액체질소용기 상에 구비되며, 상기 액체질소주입부에 인접 배치되는 비산방지부재;를 포함하는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 1항에 있어서,상기 비산방지부재는,상기 액체질소주입부에서 공급된 액체질소를 흡수 후 배출함으로써 상기 액체질소의 비산을 억제하는 다공성 재질로 이루어지는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 2항에 있어서,상기 비산방지부재는,공극이 1~ 4mm 의 스펀지인, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 2항에 있어서,상기 비산방지부재는,여러 가닥의 원사를 엮어서 뭉친 실타래 형상으로 이루어진, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 1항에 있어서,상기 이산화탄소포집기는,상기 이산화탄소트랩이 상기 액체질소용기에 수용 시 상기 액체질소용기의 개방면을 밀폐하도록 상기 이산화탄소트랩에 구비된 스크린;을 포함하는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 5항에 있어서,상기 이산화탄소트랩은 복수 개가 일정 거리 이격 구비되며,상기 스크린은, 상기 이산화탄소트랩 각각에 끼움 결합되도록 복수개가 구비되되, 중앙에 상기 이산화탄소트랩의 직경에 대응되는 직경을 갖는 삽입홀이 형성된 판상으로 이루어진, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 1항에 있어서,상기 이산화탄소포집기는,상기 액체질소용기에서 생성된 냉각가스를 흡입하여 외부로 배출하도록 상기 액체질소용기에 인접 배치되는 냉각가스 배출장치;를 포함하는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 7항에 있어서,상기 냉각가스 배출장치는,상기 비산방지부재의 직상측에 배치되는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 1항에 있어서,상기 환원반응기는,상기 이산화탄소트랩으로부터 공급된 이산화탄소의 환원반응이 일어나는 반응용기;상기 반응용기에 열을 공급하는 반응로;상기 환원반응 시 발생하는 물을 제거하기 위해 상기 이산화탄소트랩을 냉각하는 냉각조;상기 환원반응기 내부의 압력을 조절하기 위한 압력조절부; 및상기 반응로 및 상기 반응용기와, 상기 이산화탄소트랩, 상기 냉각조 및 상기 압력조절부 사이의 열교환을 차단하도록 상기 반응용기 상에 구비되는 열차단커튼;을 포함하는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 9항에 있어서,상기 냉각가스 배출장치는,상기 액체질소용기 또는 상기 냉각조에서 생성된 냉각가스를 흡입하여 외부로 배출하도록 상기 열차단커튼을 통해 구획되는 상기 액체질소용기 및 상기 냉각조가 배치된 영역에 위치하는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 9항에 있어서,상기 열차단커튼은,개폐 가능하도록 일단부가 상기 환원반응기에 힌지 결합되는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 9항에 있어서,상기 전자동 환원장치는,열전대 고정장치를 포함하며, 상기 열전대 고정장치는,열전대가 인입되도록 중공이 형성되고, 상기 반응로의 외측면에 부착되며, 외측 방향으로 돌출된 돌기가 대향되도록 구비된 고정부재;내측 공간 내에 상기 열전대가 연결되고, 상기 열전대가 상기 반응로 내에 인입되어 고정되도록 상기 고정부재와 회전 착탈 방식으로 체결되는 커넥터; 및상기 인입 방향으로 상기 열전대를 가압하는 탄성부재가 구비된 가압부재;를 포함하는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 12항에 있어서,상기 커넥터는,열 전달율이 높은 금속으로 형성되며, 일측이 개구된 중공을 갖는 원통형으로 형성되고, 외측면에 체결홈이 형성된 열전대 고정부; 및상기 열전대 고정부의 일정부분을 감싸도록 중공을 갖는 원통형으로 형성되며, 내측에 상기 열전대 고정부의 체결홈과 체결되는 돌출부가 형성된 회전부재;를 포함하는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 12항에 있어서,상기 회전부재는,상기 고정부재의 돌기와 체결되도록, 외측면에 ‘ㄴ’ 자 형상 또는 사선 방향으로 절개된 절연홀을 구비하는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 12항에 있어서,상기 회전부재는,‘ㄴ’ 자 패턴으로 회전하여 상기 고정부재와 착탈되는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
- 제 12항에 있어서,상기 고정부재는,상기 열전대가 인입되어 관통되도록 관통홀이 형성되는, 방사성탄소 연대측정용 시료전처리를 위한 전자동 환원장치.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015560132A JP6069534B2 (ja) | 2014-01-29 | 2014-12-03 | 放射性炭素年代測定用試料前処理のための全自動還元装置 |
US14/411,177 US10337968B2 (en) | 2014-01-29 | 2014-12-03 | Automatic reduction apparatus for pre-treating sample for radiocarbon dating |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2014-0011072 | 2014-01-29 | ||
KR1020140011072A KR101594852B1 (ko) | 2014-01-29 | 2014-01-29 | 방사성탄소 연대측정 용 시료전처리를 위한 전자동 환원장치 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015115728A1 true WO2015115728A1 (ko) | 2015-08-06 |
Family
ID=53757276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2014/011748 WO2015115728A1 (ko) | 2014-01-29 | 2014-12-03 | 방사성탄소 연대측정 용 시료전처리를 위한 전자동 환원장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10337968B2 (ko) |
JP (1) | JP6069534B2 (ko) |
KR (1) | KR101594852B1 (ko) |
WO (1) | WO2015115728A1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105842035A (zh) * | 2016-06-07 | 2016-08-10 | 中国科学院地球环境研究所 | 一种适用于二氧化碳在线测量的气体处理系统 |
CN108303297A (zh) * | 2018-01-23 | 2018-07-20 | 广西师范大学 | 一种氢法和锌法两用的14c样品制备系统 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111630370A (zh) * | 2018-01-22 | 2020-09-04 | 积水医疗株式会社 | 碳同位素分析设备以及碳同位素分析方法 |
CN108226274A (zh) * | 2018-01-26 | 2018-06-29 | 中国科学院地球环境研究所 | 14c-ams快速在线分析仪 |
KR102185321B1 (ko) * | 2019-11-27 | 2020-12-02 | 한국지질자원연구원 | 방사성탄소 연대측정 시료를 위한 aba법에 의한 전자동 화학전처리 장치 |
CN111521449B (zh) * | 2020-05-13 | 2021-12-17 | 浙江大学 | 石墨化装置、采样制样系统以及采样制样方法 |
CN115200962B (zh) * | 2022-09-19 | 2022-12-09 | 中国科学院地质与地球物理研究所 | 一种用于加速器质谱的石墨制样系统及制样方法 |
CN117825129B (zh) * | 2024-03-04 | 2024-05-10 | 内蒙古工业大学 | 一种高温高压下测试同位素分馏的实验试件及方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH109452A (ja) * | 1996-06-20 | 1998-01-13 | Japan Radio Co Ltd | 液体窒素補給管 |
JP2002236057A (ja) * | 2001-02-07 | 2002-08-23 | Yashima Sokki:Kk | 熱電対温度センサ |
KR200439208Y1 (ko) * | 2006-10-25 | 2008-03-31 | 주식회사 온도기술센테크 | 스프링로드 타입 진공용 시즈 열전대 기기 |
KR100998227B1 (ko) * | 2008-12-09 | 2010-12-03 | 한국지질자원연구원 | 흑연화장치 및 이를 이용한 흑연화 방법 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5082787A (en) * | 1989-12-22 | 1992-01-21 | Texaco Inc. | Method of performing hydrous pyrolysis for studying the kinetic parameters of hydrocarbons generated from source material |
US6578367B1 (en) * | 2001-03-02 | 2003-06-17 | Ta Instruments-Waters Llc | Liquid nitrogen cooling system |
-
2014
- 2014-01-29 KR KR1020140011072A patent/KR101594852B1/ko active IP Right Grant
- 2014-12-03 US US14/411,177 patent/US10337968B2/en active Active
- 2014-12-03 JP JP2015560132A patent/JP6069534B2/ja active Active
- 2014-12-03 WO PCT/KR2014/011748 patent/WO2015115728A1/ko active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH109452A (ja) * | 1996-06-20 | 1998-01-13 | Japan Radio Co Ltd | 液体窒素補給管 |
JP2002236057A (ja) * | 2001-02-07 | 2002-08-23 | Yashima Sokki:Kk | 熱電対温度センサ |
KR200439208Y1 (ko) * | 2006-10-25 | 2008-03-31 | 주식회사 온도기술센테크 | 스프링로드 타입 진공용 시즈 열전대 기기 |
KR100998227B1 (ko) * | 2008-12-09 | 2010-12-03 | 한국지질자원연구원 | 흑연화장치 및 이를 이용한 흑연화 방법 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105842035A (zh) * | 2016-06-07 | 2016-08-10 | 中国科学院地球环境研究所 | 一种适用于二氧化碳在线测量的气体处理系统 |
CN105842035B (zh) * | 2016-06-07 | 2023-08-29 | 中国科学院地球环境研究所 | 一种适用于二氧化碳在线测量的气体处理系统 |
CN108303297A (zh) * | 2018-01-23 | 2018-07-20 | 广西师范大学 | 一种氢法和锌法两用的14c样品制备系统 |
CN108303297B (zh) * | 2018-01-23 | 2023-11-03 | 广西师范大学 | 一种氢法和锌法两用的14c样品制备系统 |
Also Published As
Publication number | Publication date |
---|---|
US20160327461A1 (en) | 2016-11-10 |
KR20150090430A (ko) | 2015-08-06 |
JP6069534B2 (ja) | 2017-02-01 |
KR101594852B1 (ko) | 2016-02-16 |
US10337968B2 (en) | 2019-07-02 |
JP2016519755A (ja) | 2016-07-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2015115728A1 (ko) | 방사성탄소 연대측정 용 시료전처리를 위한 전자동 환원장치 | |
WO2011081266A1 (ko) | 전기로의 슬래그 배출 도어 장치 | |
KR100998227B1 (ko) | 흑연화장치 및 이를 이용한 흑연화 방법 | |
US20180238785A1 (en) | Molten salt environment creep testing extensometry system | |
US20150330883A1 (en) | Liquid salt environment stress-rupture testing | |
GB2212151A (en) | Silicon dust remover | |
WO2014126272A1 (ko) | 슬라이딩 타입의 출탕 구조를 갖는 실리콘 용융 도가니를 구비하는 SiOx 나노 분말 제조 장치 및 이를 이용한 SiOx 나노 분말 제조 방법 | |
WO2017026562A1 (ko) | 측면 배출게이트가 구비된 플라즈마 용융로 | |
WO2016148413A1 (ko) | 수소함유수 제조 장치 | |
KR910003345A (ko) | 엘렉트로슬랙 재용융작업(electroslag remelting operation)에서의 반응요소의 산화를 감소시키기 위한 방법과 수단 | |
WO2012141360A1 (ko) | 전로 고온공기 분사장치 | |
KR101441143B1 (ko) | 야금 가스용 퀀치 시스템 | |
ES2544618T3 (es) | Aparato y procedimiento para la separación de tritio | |
JP2575851B2 (ja) | 熱処理装置 | |
KR20040007919A (ko) | 용융 모사 시험용 2-단 수직형 고온 환원로 | |
JP3603578B2 (ja) | 単結晶引上げ装置の不活性ガス回収装置 | |
WO2012030139A2 (en) | Vacuum heat treatment apparatus | |
WO2017191905A1 (ko) | 토양 오염 자동화 분석 장치 | |
CN220154187U (zh) | 一种耐高温老化试验装置 | |
WO2024172231A1 (ko) | 가스 정제 장치 | |
WO2018052270A1 (ko) | 보론 도핑장치의 배기라인 트랩 어셈블리 | |
WO2024181839A1 (ko) | 전극 활물질의 이물 포집 키트 | |
WO2019045261A1 (ko) | 오염가스 제거 장치, 상기 오염가스 제거 장치의 감시 시스템 및 방법 | |
KR200291913Y1 (ko) | 용융 모사 시험용 2-단 수직형 고온 환원로 | |
JPH01167632A (ja) | 二重冷却式ナトリウムサンプリング装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2015560132 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14411177 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14880500 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14880500 Country of ref document: EP Kind code of ref document: A1 |