KR20150139053A - Instrument and Method for the precise Injection/Mixing/Gavimetry on the Liquified Gases - Google Patents

Instrument and Method for the precise Injection/Mixing/Gavimetry on the Liquified Gases Download PDF

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KR20150139053A
KR20150139053A KR1020140066676A KR20140066676A KR20150139053A KR 20150139053 A KR20150139053 A KR 20150139053A KR 1020140066676 A KR1020140066676 A KR 1020140066676A KR 20140066676 A KR20140066676 A KR 20140066676A KR 20150139053 A KR20150139053 A KR 20150139053A
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raw material
material gas
cylinder
gas cylinder
gas
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KR1020140066676A
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KR101582745B1 (en
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우진춘
김용두
배현길
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한국표준과학연구원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L5/00—Gas handling apparatus
    • B01L5/02—Gas collection apparatus, e.g. by bubbling under water
    • 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
    • G01N1/38—Diluting, dispersing or mixing samples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators

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Abstract

The present invention relates to an apparatus and a method for producing a liquid hydrocarbon mixture certification reference material, and more particularly, to a method and apparatus for producing a liquid hydrocarbon mixture reference standard material, which can easily handle even if the weight and volume of the raw material gas cylinder are large, It can be supplied to the gas pipe at all times in a liquid state, and even when the pressure of the raw material gas cylinder is low, the raw material gas is smoothly transferred to the certified standard material cylinder and injected and mixed, The present invention relates to an apparatus and a method for manufacturing a certified hydrocarbon liquid mixture.
The apparatus for manufacturing a liquid hydrocarbon mixture reference standard material according to the present invention is characterized in that a raw material gas cylinder C1 filled with a raw material gas of each component is sequentially connected to a raw material gas cylinder connecting port 110 at an end of the gas pipe L, A check valve 120 for supplying the raw material gas for each component and for preventing the supplied raw material gas from flowing back to the raw material gas cylinder C1 and a raw material gas filter for filtering the raw material gas 130 for supplying the raw material gas; A vacuum pump 210 for cleaning the gas pipe L in a vacuum for transferring pure raw material gas, an exhaust hood 220 for exhausting the polluted gas generated by washing the gas pipe L to the outside, And a high-precision scale 240 having a pressure gauge 230 for measuring the pressure of the raw material gas L and an oil-gas connection 241 for measuring the precise amount of the raw material gas to be injected, )Wow; An authentic standard substance storage unit 300 for storing a hydrocarbon mixture authentic standard material having a bypass injecting unit 310 for washing an authentic standard material cylinder C3 and mixing the raw material gases of the respective injected ingredients; And the raw material gas of each component supplied from the raw material gas cylinder C1 is smoothly transferred to the certified reference material cylinder C3 by being connected to the gas pipe L and injected and mixed to produce a hydrocarbon mixture certified reference material In the hydrocarbon mixture certified standard material manufacturing apparatus, the raw material gas inlet part 100 is provided with a helium gas cylinder C2 for injecting helium (He) into the gas pipe so as to increase the pressure of the raw material gas cylinder C1 And a helium gas cylinder connection hole 110 'is further provided at an end of the branch pipe L' of the gas pipe L. [
Also, the material gas inlet part 100 is provided with a material gas cylinder platform 140 on which a material gas cylinder C1 can be mounted.
When the internal pressure of the raw material gas cylinder C1 is low, the raw material gas cylinder C1 is externally heated to raise the internal pressure of the raw material gas cylinder C1 so that the raw material gas flowing through the gas pipe L is fed to the certified reference material cylinder C3) to be injected and mixed. The material gas cylinder heating device 150 is further provided outside the material gas cylinder C1.
The method for producing a liquid hydrocarbon mixture certification reference material according to the present invention includes a step of mounting a raw material gas cylinder C1 filling raw material gas of each component in order and supplying a raw material gas of each required component )Wow; (S2) of adjusting the step motor (144) by a step motor adjuster (145) so that only the gas in the liquid phase is guided to the cylinder outlet so that the material gas cylinder (C1) is automatically reversed and reversed; A raw material gas supply and transfer step (S3) for transferring the raw material gas supplied from the raw material gas cylinder (C1) to the gas pipe (L) to a certified standard material cylinder (C3) in a clean state without contamination; A precise measuring step (S4) of measuring the precise weight of the raw material gas of each component passing through the flexible gas pipe (241) by the high-precision scale (240); An injection, mixing and storing step (S5) of injecting and mixing an accurate amount of the precursor gas of each component accurately measured in the reference standard material cylinder (C3) and storing it; .
At this time, when the pressure inside the gas pipe L is low so that the raw material gas can not be transferred and injected to the inlet of the certified reference material cylinder C3, the helium gas cylinder connection end portion provided at the end of the branch pipe L ' (He) supply step (S3-1) of supplying helium (He) to the gas pipe (L) by connecting the helium gas cylinder (C2) to the gas pipe (110 ').
At this time, when the internal pressure of the raw material gas cylinder C1 is low so that the raw material gas can not be transferred and injected to the inlet of the certified reference material cylinder C3, the internal pressure of the raw material gas cylinder C1 is raised, (S3-2) heating the raw material gas cylinder so that the raw material gas cylinder can be smoothly transferred to the inlet of the reference material cylinder (C3).
According to the apparatus and method for producing a liquid hydrocarbon mixture standard material of the present invention as described above, even when the weight and volume of the raw material gas cylinder are large, the raw material gas cylinder can be easily handled, The raw material gas can be supplied to the gas pipe at all times in a liquid state and even if the pressure of the raw material gas cylinder is low, the raw material gas is smoothly transferred to the certified standard material cylinder through the gas pipe and injected and mixed, An apparatus and a method for manufacturing a liquid hydrocarbon mixture certified reference material capable of producing a mixture certified reference material are provided.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and a method for producing a liquid hydrocarbon mixture,

The present invention relates to an apparatus and a method for producing a liquid hydrocarbon mixture certification reference material, and more particularly, to a method and apparatus for producing a liquid hydrocarbon mixture reference standard material, which can easily handle even if the weight and volume of the raw material gas cylinder are large, It can be supplied to the gas pipe at all times in a liquid state, and even when the pressure of the raw material gas cylinder is low, the raw material gas is smoothly transferred to the certified standard material cylinder and injected and mixed, The present invention relates to an apparatus and a method for manufacturing a certified hydrocarbon liquid mixture.

A reference material is a homogeneous reference used to calibrate a measuring instrument, to measure the composition or properties of a material. In particular, a Certified Reference Material (CRM) is an internationally recognized reference material that is evaluated and recognized in accordance with the ISO International Standard, that is, a standard substance of international standard that is well known worldwide.

In order to accurately measure the concentration of hydrocarbon mixture samples at the C3, C4 and C5 levels, which are generally liable to liquefy at room temperature, the entire sample must be vaporized or liquefied and then the vapor phase or liquid hydrocarbon mixture standards The chemical properties are compared and measured.

However, hydrocarbon mixture samples of the C3, C4 and C5 levels are prone to liquefaction at room temperature. Therefore, in order to accurately measure the concentration of the above-mentioned hydrocarbon mixture samples which are liable to be liquefied at room temperature, it is effective to first measure the concentration of the hydrocarbon mixture sample using the liquid hydrocarbon mixture certification standard after liquefying the hydrocarbon mixture sample, .

Nonetheless, it is difficult and complicated to prepare a liquid hydrocarbon mixture certification reference material. In general, the hydrocarbon mixture sample is first vaporized and then the concentration of the sample is measured by using the vaporized hydrocarbon mixture reference standard, This is falling.

Therefore, in order to accurately measure the concentration of hydrocarbon mixture samples that are liable to liquefy at room temperature, a liquid hydrocarbon mixture certification standard material is required. In order to prepare such a liquid hydrocarbon mixture certification standard material, a liquid raw material gas There is a need for an apparatus that can produce an aqueous hydrocarbon mixture certification standard by simply injecting and mixing the correct amount conveniently, conveniently and quickly.

Conventional hydrocarbon mixture certification standard material manufacturing apparatuses produce raw material gas of each component from a raw gas cylinder by being fed to a certified reference material cylinder along with a gas pipe, and injected and mixed, thereby producing a hydrocarbon mixture certified reference material.

However, since the gaseous raw material gas is located in the upper part of the cylinder and the liquid raw material gas is located in the lower part of the cylinder in the raw material gas cylinder filled with the raw material gas, when the raw material gas is supplied to the gas pipe, Of the raw material gas is first supplied to the gas pipe through the cylinder outlet and transferred to the certified standard material cylinder and injected and mixed. Therefore, since the hydrocarbon mixture standard material to be manufactured at this time is a mixed gas phase and a liquid phase, There is a problem that accuracy is poor.

Therefore, in order to manufacture a liquid hydrocarbon mixture reference standard substance required for accurate concentration measurement of a sample gas, a device capable of supplying only a liquid raw material gas from a raw material gas cylinder to a gas pipe by freely handling a raw material gas cylinder having a large weight and a large volume Development is urgently required.

In addition, when the pressure inside the raw material gas cylinder is low, the raw material gas can not be fed to the certified reference material cylinder through the gas pipe, so that the raw material gas can not be injected and mixed, so that the liquid hydrocarbon mixture certification standard can not be manufactured did.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a feed gas cylinder which can handle easily even when the weight and volume of the raw material gas cylinder are large, And even when the pressure inside the raw material gas cylinder is low, the raw material gas can be smoothly transferred to the certified standard material cylinder and injected and mixed to thereby produce a liquid hydrocarbon mixture certified reference material smoothly. And to provide a manufacturing apparatus and method.

In order to achieve the above object, the present invention provides an apparatus for producing a liquid hydrocarbon mixture reference standard material, comprising a raw material gas cylinder C1 filled with a raw material gas of each component in a raw gas cylinder connecting port 110 at an end of the gas pipe L A check valve 120 for preventing the supplied raw material gas from flowing back to the raw material gas cylinder C1 on the supply gas pipe L and a check valve 120 for preventing the raw material gas from flowing back to the raw material gas cylinder C1, A raw material gas inlet portion 100 provided with a raw material gas filter 130 for filtering the raw material gas; A vacuum pump 210 for cleaning the gas pipe L in a vacuum for transferring pure raw material gas, an exhaust hood 220 for exhausting the polluted gas generated by washing the gas pipe L to the outside, And a high-precision scale 240 having a pressure gauge 230 for measuring the pressure of the raw material gas L and an oil-gas connection 241 for measuring the precise amount of the raw material gas to be injected, )Wow; An authentic standard substance storage unit 300 for storing a hydrocarbon mixture authentic standard material having a bypass injecting unit 310 for washing an authentic standard material cylinder C3 and mixing the raw material gases of the respective injected ingredients; And the raw material gas of each component supplied from the raw material gas cylinder C1 is smoothly transferred to the certified reference material cylinder C3 by being connected to the gas pipe L and injected and mixed to produce a hydrocarbon mixture certified reference material In the hydrocarbon mixture certified standard material manufacturing apparatus, the raw material gas inlet part 100 is provided with a helium gas cylinder C2 for injecting helium (He) into the gas pipe so as to increase the pressure of the raw material gas cylinder C1 And a helium gas cylinder connection hole 110 'is further provided at an end of the branch pipe L' of the gas pipe L. [

Also, the material gas inlet part 100 is provided with a material gas cylinder platform 140 on which a material gas cylinder C1 can be mounted.

When the internal pressure of the raw material gas cylinder C1 is low, the raw material gas cylinder C1 is externally heated to raise the internal pressure of the raw material gas cylinder C1 so that the raw material gas flowing through the gas pipe L is fed to the certified reference material cylinder C3) to be injected and mixed. The material gas cylinder heating device 150 is further provided outside the material gas cylinder C1.

The method for producing a liquid hydrocarbon mixture certification reference material according to the present invention includes a step of mounting a raw material gas cylinder C1 filling raw material gas of each component in order and supplying a raw material gas of each required component )Wow; (S2) of adjusting the step motor (144) by a step motor adjuster (145) so that only the gas in the liquid phase is guided to the cylinder outlet so that the material gas cylinder (C1) is automatically reversed and reversed; A raw material gas supply and transfer step (S3) for transferring the raw material gas supplied from the raw material gas cylinder (C1) to the gas pipe (L) to a certified standard material cylinder (C3) in a clean state without contamination; A precise measurement step (S4) of accurately measuring the precise weight of each component gas passing through the flexible gas pipe (241) by the high-precision scale (240); An injection, mixing and storing step (S5) of injecting and mixing an accurate amount of the precursor gas of each component accurately measured in the reference standard material cylinder (C3) and storing it; .

At this time, when the pressure inside the gas pipe L is low so that the raw material gas can not be transferred and injected to the inlet of the certified reference material cylinder C3, the helium gas cylinder connection end portion provided at the end of the branch pipe L ' (He) supply step (S3-1) of supplying helium (He) to the gas pipe (L) by connecting the helium gas cylinder (C2) to the gas pipe (110 ').

At this time, when the internal pressure of the raw material gas cylinder C1 is low so that the raw material gas can not be transferred and injected to the inlet of the certified reference material cylinder C3, the internal pressure of the raw material gas cylinder C1 is raised, (S3-2) heating the raw material gas cylinder so that the raw material gas cylinder can be smoothly transferred to the inlet of the reference material cylinder (C3).

According to the apparatus and method for producing a liquid hydrocarbon mixture standard material of the present invention as described above, even when the weight and volume of the raw material gas cylinder are large, the raw material gas cylinder can be easily handled, The raw material gas can be supplied to the gas pipe at all times in a liquid state and even if the pressure of the raw material gas cylinder is low, the raw material gas is smoothly transferred to the certified standard material cylinder through the gas pipe and injected and mixed, An apparatus and a method for manufacturing a liquid hydrocarbon mixture certified reference material capable of producing a mixture certified reference material are provided.

1 is an explanatory diagram of a conventional hydrocarbon compound certified standard material manufacturing apparatus.
Fig. 2 is an explanatory diagram of a state in which a helium gas cylinder for increasing the pressure of the raw material gas cylinder is attached.
3 is a state in which a raw material gas cylinder is mounted on a raw material gas cylinder platform.
4 is a state in which a raw material gas cylinder is mounted on a raw material gas cylinder platform.
5 is an explanatory diagram of a liquid hydrocarbon compound certification standard storage.
FIG. 6 is a conceptual diagram of an entire apparatus for producing a liquid hydrocarbon mixture certification standard according to the present invention.
Figure 7 is a flow chart of the method of manufacturing the liquid hydrocarbon mixture certification standard of the present invention.
8 is a flowchart of a method for manufacturing a liquid hydrocarbon mixture certification standard according to the present invention, which further includes a step of supplying helium (He) (S3-1) when the internal pressure of the raw material gas cylinder C1 is low.
9 is a flowchart of a method for manufacturing a liquid hydrocarbon mixture certification standard according to the present invention, which further includes a raw material gas cylinder heating step (S3-2) when the internal pressure of the raw material gas cylinder C1 is low.

Hereinafter, an apparatus and a method for producing a liquid hydrocarbon mixture certification reference material of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately Therefore, it should be understood that the embodiments described herein are merely the most preferred embodiments of the present invention, and that the technical idea of the present invention is not limited to the technical concept of the present invention, It is to be understood that various equivalents and modifications may be substituted for those at the time of filing of the present invention. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention.

1, the apparatus for producing a liquid hydrocarbon mixture reference standard material according to the present invention is characterized in that a raw material gas cylinder C1 filled with a raw material gas of each component is sequentially connected to a raw gas cylinder connecting port 110 at an end of the gas pipe L A check valve 120 for supplying the raw material gas of each component to the gas pipe L and preventing the supplied raw material gas from flowing back to the raw material gas cylinder C1 on the supply gas pipe L, A raw material gas inlet (100) having a raw material gas filter (130) for supplying raw material gas; A vacuum pump 210 for cleaning the gas pipe L in a vacuum for transferring pure raw material gas, an exhaust hood 220 for exhausting the polluted gas generated by washing the gas pipe L to the outside, And a high-precision scale 240 having a pressure gauge 230 for measuring the pressure of the raw material gas L and an oil-gas connection 241 for measuring the precise amount of the raw material gas to be injected, )Wow; An authentic standard substance storage unit 300 for storing a hydrocarbon mixture authentic standard material having a bypass injecting unit 310 for washing an authentic standard material cylinder C3 and mixing the raw material gases of the respective injected ingredients; And the raw material gas of each component supplied from the raw material gas cylinder C1 is smoothly transferred to the certified reference material cylinder C3 by being connected to the gas pipe L and injected and mixed to produce a hydrocarbon mixture certified reference material In the hydrocarbon mixture certified standard material manufacturing apparatus, the raw material gas inlet part 100 is provided with a helium gas cylinder C2 for injecting helium (He) into the gas pipe so as to increase the pressure of the raw material gas cylinder C1 And a helium gas cylinder connection port 101 'is further provided at an end of the branch pipe L' of the gas pipe L. [

Also, the material gas inlet part 100 is provided with a material gas cylinder platform 140 on which a material gas cylinder C1 can be mounted.

When the internal pressure of the raw material gas cylinder C1 is low, the raw material gas cylinder C1 is externally heated to raise the internal pressure of the raw material gas cylinder C1 so that the raw material gas flowing through the gas pipe L is fed to the certified reference material cylinder C3) to be injected and mixed. The material gas cylinder heating device 150 is further provided outside the material gas cylinder C1.

This will be described in more detail below.

The raw material gas inlet portion 100 is an inlet portion for supplying a component hydrocarbon gas, which is a raw material gas for a liquid hydrocarbon mixture certification standard material.

A raw gas cylinder connecting port 110 for connecting the raw material gas cylinder C1 filled with the raw material gas of each component is provided at an end of the gas pipe L of the raw gas introducing part 100.

The raw material gas cylinder C1 is connected to a raw material gas cylinder connecting port 110 coupled to one end of a gas pipe L to supply raw material gas to the gas pipe L. [

A check valve 120 for preventing the supplied raw material gas from flowing back to the raw material gas cylinder C1 and a raw material gas filter 130 for filtering the raw material gas are provided on the supply gas pipe L. [

The raw material gas inlet part 100 is provided with a raw material gas cylinder platform 140 for mounting and storing the raw material gas cylinder C1.

The raw material gas cylinder platform 140 is for injecting only liquid raw material gas into the gas pipe L from the inside of the raw material gas cylinder C1 in which the liquid phase and the vapor phase are mixed.

The raw material gas cylinder mounting platform 141 and the raw material gas cylinder mounting stand mounting bracket 142 are rotatably shaft-connected by a coupling shaft 143 and the raw gas cylinder mounting platform 141 And a step motor controller 145 for controlling the rotation angle and speed of the material gas cylinder mounting table 141 by adjusting the step motor 144. [

The material gas cylinder mounting base 141 is formed in a rectangular shape with a predetermined width by assembling an aluminum frame having a predetermined thickness, and includes an upper raw material gas cylinder outlet guide 146; A lower raw material gas cylinder shipping plate 147; Upper, middle and lower fixing rods 148 and fixing bands 148 'for firmly fixing the raw material gas cylinder C1 loaded on the raw material gas cylinder shroud 147; A plurality of couplings (149) penetrating through the coupling holes through which the coupling shaft (143) can be coupled and integrally coupled to the left and right central regions of the back side; .

The material gas cylinder mounting base rest 142 is formed by assembling an aluminum frame having a predetermined thickness and having a horizontal cross section in an H-shape at a predetermined height, A plurality of coupling springs 149 'passing through the coupling holes at the central portion for rotatably and axially coupling the raw material gas cylinder mounting base 141 by the coupling shaft 143 are inserted into the raw material gas cylinder mounting base 141, As shown in FIG.

The raw material gas cylinder C1 having a large weight and a large volume is arranged on the raw material gas cylinder shipping plate 147 of the raw material gas cylinder platform 140 by the raw material gas cylinder platform 140, The raw material gas cylinder cylinder 141 is rotated so that the raw material gas cylinder C1 fixed to the raw material gas cylinder platform 140 can be easily handled and reversely mounted thereby to be guided to the lower outlet direction of the raw material gas cylinder C1 Only the liquid raw material gas can be easily supplied to the gas pipe L through the outlet of the raw material gas cylinder C1.

In addition, the raw material gas inlet portion 100 may further include a helium gas cylinder connecting hole 110 '.

The helium gas cylinder connection port 110 'connects the helium gas cylinder C2 when the pressure of the raw material gas cylinder C1 is low and the raw material gas can not reach the inlet of the certified reference material cylinder C3 and can not be injected. And Helium (He) gas is supplied to the gas pipe L so as to facilitate the smooth transportation of the raw material gas so that the raw material gas can be smoothly transferred and injected into the inlet of the certified reference material cylinder C3.

At this time, the helium gas cylinder connecting port 110 'is provided at the end of the branch pipe L' of the gas pipe L to which the raw material gas is supplied, as shown in FIGS.

In addition, when the pressure of the raw material gas cylinder C1 is low and the raw material gas reaches the inlet of the certified reference material cylinder C3 and can not be injected, the outside of the raw material gas cylinder C1 is heated to cool the raw material gas cylinder C1 The material gas cylinder heating apparatus 150 may be further provided to increase the internal pressure.

3, 4 and 6, the raw material gas cylinder heating apparatus 150 includes a thermistor 151 installed outside the raw material gas cylinder C1 for measuring the temperature of the raw material gas cylinder C1 , a thermistor thermostatted resistor); A heater 152 for heating the outside of the raw material gas cylinder C1; A controller 153-1 for controlling the heater 152 based on the measured value of the thermistor 151; .

A plurality of heaters 152 of the material gas cylinder heating apparatus 150 may be provided.

When the internal pressure of the raw material gas cylinder C1 is low by the raw material gas cylinder heating device 150 so that the raw material gas can not be transferred and injected to the inlet of the certified reference material cylinder C3, The raw material gas is smoothly transferred to the inlet of the certified reference material cylinder C3 by injecting and mixing the raw material gas by heating the raw material gas cylinder C1 so that the liquid hydrocarbon mixture certified reference material can be manufactured.

The precise injection unit 200 includes a vacuum pump 210 for cleaning the gas pipe L in a vacuum state for transferring pure raw material gas and a vacuum pump 210 for discharging the polluted gas generated by washing the gas pipe L to the outside A high-precision scale 240 having an exhaust hood 220 for measuring the pressure of the gas pipe 102, a pressure gauge 230 for measuring the pressure of the gas pipe 102, and an oil- And is connected to the raw material gas inlet part 100 and the certified standard material storage part 300 by a gas pipe L. [

The precise injecting unit 200 is used to clean the gas pipe L by making the pressure of the gas pipe L vacuum by using a vacuum pump 210 so as to accurately transfer the source gas to be injected and to fill the gas pipe L with only the liquid or gas, Several valves are installed.

As shown in FIG. 5, the high-precision scale 240 is provided with a bypass pipe 242 having a cleaning pipe 243 and a cleaning pipe 243 capable of cleaning the portion, Measure accurately.

Also, the certified reference material storage unit 300 stores the hydrocarbon mixture certification standard material, which is connected to the precision injection unit 200 through the gas pipe L, and is prepared by mixing the raw material gases of the injected components.

That is, the raw material gas inlet portion 100, the precision injection portion 200, and the certified standard material storage portion 300 are connected to each other by a gas pipe L, so that each component supplied from the raw gas cylinder C1 The raw material gas is transferred to the certified standard material cylinder (C3) and injected and mixed so that a liquid hydrocarbon mixture certified reference material can be produced.

The following describes in detail the method for preparing a liquid hydrocarbon mixture certification reference material.

Figure 7 is a flow chart of the method of manufacturing the liquid hydrocarbon mixture certification standard of the present invention.

As shown in Fig. 7, the method for producing a liquid hydrocarbon mixture reference material of the present invention is characterized in that a raw material gas cylinder (C1) filling raw material gas of each component is successively mounted, and a raw material A gas cylinder platform mounting step (S1); (S2) of adjusting the step motor (144) by a step motor adjuster (145) so that only the gas in the liquid phase is guided to the cylinder outlet so that the material gas cylinder (C1) is automatically reversed and reversed; A raw material gas supply and transfer step (S3) for transferring the raw material gas supplied from the raw material gas cylinder (C1) to the gas pipe (L) to a certified standard material cylinder (C3) in a clean state without contamination; A precise measurement step (S4) of accurately measuring the precise weight of each component gas passing through the flexible gas pipe (241) by the high-precision scale (240); Mixing, and storing the precise amount of precisely measured precursor gas of each component into the certified reference material cylinder (C3) and storing it (S5).

At this time, when the pressure inside the gas pipe L is low and the raw material gas can not be transferred and injected to the inlet of the certified reference material cylinder C3, the end of the branch pipe L 'of the gas pipe L And supplying helium (He) to the gas pipe (L) by connecting a helium gas cylinder (C2) to the helium gas cylinder connection port (110 ') provided in the gas pipe .

9, when the internal pressure of the raw material gas cylinder C1 is low so that the raw material gas can not be fed and injected to the inlet of the certified reference material cylinder C3, the internal pressure of the raw material gas cylinder C1 (S3-2) heating the raw material gas cylinder so that the raw material gas can be smoothly transferred to the inlet of the certified reference material cylinder (C3) by raising the temperature of the raw material gas cylinder (C3).

The raw material gas cylinder platform mounting step S1 is performed by connecting the raw material gas cylinder C1 filled with the raw material gas to the raw material gas cylinder connecting port 110 at the end of the gas pipe L to supply the raw material gas to the gas pipe L The raw material gas cylinder C1 is fixedly mounted on the raw material gas cylinder platform 140. [

The raw material gas cylinder C1 filling the raw material gas of each component is successively mounted to supply the raw material gas of each necessary component.

The raw material gas cylinder reverse mounting step S2 is a step in which the raw material gas cylinder C1 mounted on the raw material gas cylinder mounting table 141 is controlled by the step motor controller 145 to control the step motor 144, The cylinder C1 is automatically turned upside down so that only the liquid phase gas is guided to the outlet except for the vaporized gas component.

As described above, the raw material gas cylinder (C1) fixedly mounted on the raw material gas cylinder mounting base (141) is freely handled and mounted backward so that the liquid raw material gas guided to the cylinder outlet can be easily supplied onto the gas pipe will be.

The raw material gas supply and transfer step S3 is a step of transferring the raw material gas supplied from the raw material gas cylinder C1 to the gas pipe L to the certified standard material cylinder C3 in a clean state without contamination.

In the raw material gas supply and transfer step S3, the gas pipe L is vacuumed by the vacuum pump 210 to transfer the raw material gas supplied to the gas pipe L to the certified standard material cylinder C3 without pollution, And exhausted to the outside through the exhaust hood 220. The inside of the gas pipe L is filled with the liquid raw material gas and the pressure is measured.

At this time, when the pressure inside the gas pipe L is low and the raw material gas can not be transferred and injected to the inlet of the certified reference material cylinder C3, it is provided at the end of the branch pipe L 'of the gas pipe L to which the raw material gas is supplied He gas is supplied to the gas pipe L by connecting a helium gas cylinder C2 to the helium gas cylinder connection port 110 'so that Helium (He) gas is supplied to the gas pipe L, So that it can be smoothly transferred and injected to the inlet of the cylinder C3.

8 is a flowchart of a method of manufacturing a liquid hydrocarbon mixture certification standard according to the present invention, which further includes a step of supplying helium (He) (S3-1) when the internal pressure of the raw material gas cylinder C1 is low.

That is, when the pressure inside the gas pipe L is low and the raw material gas can not be transferred and injected to the inlet of the certified reference material cylinder C3, the branch pipe L 'of the gas pipe L, And supplying helium (He) to the gas pipe (L) by connecting a helium gas cylinder (C2) to a helium gas cylinder connection port (110 ') provided at an end of the gas pipe can do.

In this case, when the internal pressure of the raw material gas cylinder C1 is low and the raw material gas can not be transferred and injected to the inlet of the certified reference material cylinder S3, as shown in FIG. 4, The raw material gas cylinder C1 is heated by the heater 150 to raise the internal pressure of the raw material gas cylinder C1 so that the raw material gas is smoothly transferred to the inlet of the certified reference material cylinder C3 to be injected and mixed, It is also possible to prepare a mixture certified reference material.

9 is a flowchart of a method for manufacturing a liquid hydrocarbon mixture certification standard according to the present invention, which further includes a raw material gas cylinder heating step (S3-2) when the internal pressure of the raw material gas cylinder C1 is low.

That is, when the internal pressure of the raw material gas cylinder C1 is low and the raw material gas can not be transferred and injected to the inlet of the certified reference material cylinder C3, the inside of the raw material gas cylinder C1 And a raw material gas cylinder heating step (S3-2) for raising the pressure so that the raw material gas can be smoothly transferred to the inlet of the certified reference material cylinder (C3).

In addition, the step (S4) of precisely measuring the weight of the raw material gas is a step of measuring the precise weight of the raw material gas of each component passing through the flexible gas pipe 241 by the high-precision scale 240.

The injecting mixing and storing step S5 may include injecting and mixing the precise amount of each precursor gas precisely measured in the raw material gas weight measuring step S4 into the certified standard material cylinder C3 to be.

That is, the precise amount of raw material gas transferred through the gas pipe L is injected into the certified standard material cylinder C3 by the bypass injection pipe 242 having the flexible gas pipe 241 and the cleaning pipe 243, And stored.

At this time, it is also possible to mount and mix the certified reference material cylinder (C3) into which the various raw material gases are introduced, to the raw material gas cylinder platform (140).

According to the apparatus and method for producing a liquid hydrocarbon mixture reference standard material as described above, even if the weight and volume of the raw material gas cylinder C1 are large, the raw material gas cylinder C1 can be easily handled and the raw material gas cylinder C1, Even if the pressure of the raw material gas cylinder C1 is low, the raw material gas is smoothly transferred to the certified reference material cylinder C3 through the gas pipe L, and is injected and mixed It is possible to produce a liquid hydrocarbon mixture certification reference material conveniently, conveniently and quickly.

Although the present invention has been described in detail with reference to the apparatus and method for producing a liquid hydrocarbon mixture standard material through the above-mentioned preferred embodiment, it is always possible to apply various modifications or variations without departing from the spirit and scope of the present invention Do. It is, therefore, obvious that the appended claims are intended to cover such modifications and changes as fall within the true spirit of the invention.

1 Liquid hydrocarbon mixture certified standard material manufacturing equipment
L Gas pipe L 'branch pipe C1 Material gas cylinder C2 Helium gas cylinder C3 Certification standard material Cylinder
100 Raw material gas inlet portion
110 Raw material gas cylinder connecting hole 110 'Helium gas cylinder connecting hole 120 Check valve 130 Raw material gas filter 140 Raw material gas cylinder platform 141 Raw material gas cylinder mounting base 142 Raw material gas cylinder mounting stand 143 Coupling shaft 144 Step motor 145 Step motor controller 146 Raw gas cylinder Outlet guide 147 Raw material gas cylinder Shipment plate 148 Fixing band 148 'Fixing band 149 Coupling rod 149 149 Coupling rod 150 Raw material gas cylinder heating device 151 Thermistor 152 Temperature controller 153 Controller 153-1 Temperature measurement and control unit 153-2 Cylinder rotation speed and position control 153-3 Pressure measurement and indicator
200 precise injection of raw material gas
210 Vacuum pump 220 Exhaust hood 230 Pressure gauge 240 High-precision scale 241 Yoo, Kyung 242 Bypass injection tube 243,
300 certified standard material storage

Claims (10)

A raw material gas cylinder C1 filled with a raw material gas of each component is successively connected to a raw gas cylinder connecting port 110 at an end of the gas pipe L to supply raw material gas of each component to the gas pipe L, A check valve 120 for preventing the supplied raw material gas from flowing back to the raw material gas cylinder C1 and a raw material gas inlet portion 100 provided with a raw material gas filter 130 for filtering the raw material gas, ; A vacuum pump 210 for cleaning the gas pipe L in a vacuum for transferring pure raw material gas, an exhaust hood 220 for exhausting the polluted gas generated by washing the gas pipe L to the outside, And a high-precision scale 240 having a pressure gauge 230 for measuring the pressure of the raw material gas L and an oil-gas connection 241 for measuring the precise amount of the raw material gas to be injected, )Wow; An authentic standard substance storage unit 300 for storing a hydrocarbon mixture authentic standard material having a bypass injecting unit 310 for washing an authentic standard material cylinder C3 and mixing the raw material gases of the respective injected ingredients; And the raw material gas of each component supplied from the raw material gas cylinder C1 is smoothly transferred to the certified reference material cylinder C3 by being connected to the gas pipe L and injected and mixed to produce a hydrocarbon mixture certified reference material In the hydrocarbon mixture certified standard material manufacturing apparatus, the raw material gas inlet part 100 is provided with a helium gas cylinder C2 for injecting helium (He) into the gas pipe so as to increase the pressure of the raw material gas cylinder C1 Wherein the helium gas cylinder connection port (110 ') is further provided at an end of the branch pipe (L') of the gas pipe (L).  The method according to claim 1, wherein the raw material gas cylinder (C1) of the raw material gas inlet (100) is a raw material gas cylinder cylinder (C1) for injecting only the liquid raw material gas from the inside where the liquid phase and the gaseous raw material gas are mixed, (140). The apparatus for manufacturing a liquid hydrocarbon mixture reference material according to claim 1, 3. The raw material gas cylinder platform (110) according to claim 2, wherein the raw gas cylinder mounting platform (141) and the raw material gas cylinder mounting rack mounting platform (142) are rotatably shaft- A step motor 144 for rotating the gas cylinder mounting table 141 and a step motor regulator 145 for controlling the rotation angle and speed of the material gas cylinder mounting table 141 by adjusting the step motor 144 ), Wherein the liquid hydrocarbon mixture reference standard substance manufacturing apparatus comprises: 4. The apparatus of claim 3, wherein the material gas cylinder mounting base (141) is formed into a rectangular shape with a predetermined width by assembling an aluminum frame having a predetermined thickness, and includes an upper raw material gas cylinder outlet guide (146); A lower raw material gas cylinder shipping plate 147; Upper, middle and lower fixing rods 148 and fixing bands 148 'for firmly fixing the raw material gas cylinder C1 loaded on the raw material gas cylinder shroud 147; A plurality of couplings (149) penetrating through the coupling holes through which the coupling shaft (143) can be coupled and integrally coupled to the left and right central regions of the back side; Wherein the liquid hydrocarbon mixture reference standard material manufacturing apparatus comprises: 4. The material gas cylinder mounting stand (142) according to claim 3, wherein the material gas cylinder mounting stand (142) is formed by assembling an aluminum frame having a predetermined thickness and having a horizontal cross- A plurality of coupling rods 149 'passing through the coupling holes at the center portion for rotatably and axially coupling the mounting rod 141 with the coupling shaft 143 are inserted into the coupling rods 149 of the raw material gas cylinder mounting rods 141 ) Of the liquid hydrocarbon mixture reference standard material. The method according to claim 1, wherein, in the raw material gas inlet (100), when the internal pressure of the raw material gas cylinder (C1) is low and the raw material gas can not reach the inlet of the certified reference material cylinder (C3) Wherein the raw material gas cylinder heating device (150) is further provided to heat the outside of the raw material gas cylinder (C1) to raise the internal pressure of the raw material gas cylinder (C1). The apparatus according to claim 6, wherein the raw material gas cylinder heating apparatus (150) comprises a thermistor (151) thermistor (151) installed outside the raw material gas cylinder (C1) for measuring the temperature of the raw material gas cylinder ; One or a plurality of heaters 122 for heating the outside of the raw material gas cylinder C1; A controller 153-1 for controlling the heater 152 based on the measured value of the thermistor 151; Wherein the liquid hydrocarbon mixture reference standard material manufacturing apparatus comprises: A method for manufacturing a liquid hydrocarbon mixture standard material, comprising the steps of: (S1) mounting a raw gas cylinder platform, in which raw material gas cylinders (C1) filled with raw material gases of respective components are sequentially mounted and raw material gases of respective necessary components are supplied ; (S2) of adjusting the step motor (144) by a step motor adjuster (145) so that only the gas in the liquid phase is guided to the cylinder outlet so that the material gas cylinder (C1) is automatically reversed and reversed; A raw material gas supply and transfer step (S3) for transferring the raw material gas supplied from the raw material gas cylinder (C1) to the gas pipe (L) to a certified standard material cylinder (C3) in a clean state without contamination; (S4) of measuring the precise weight of the raw material gas of each component passing through the flexible gas pipe (241) by the high-precision scale (240); An injection mixing and storing step (S5) for injecting and mixing an accurate amount of the raw material gas of each component accurately measured into an authentic reference material cylinder (C3) and storing it; Of the liquid hydrocarbon mixture. The method as claimed in claim 8, wherein the source gas supply and transfer step (S3) is a step of supplying the raw gas to the gas cylinder (L) when the pressure inside the gas pipe (L) Supplying a helium gas cylinder (C2) to a helium gas cylinder connection port (110 ') provided at an end of the branch pipe (L') of the branch pipe (L ') and supplying helium (He) 1) < / RTI > based on the total weight of the liquid hydrocarbon mixture. The method as claimed in claim 8, wherein in the step (S3), when the pressure of the raw material gas cylinder (C1) is low so that the raw material gas can not be transferred to the inlet of the certified reference material cylinder (C3) (S3-2) of heating the raw material gas cylinder so that the raw material gas can be smoothly transferred to the inlet of the certified reference material cylinder (C3) by increasing the internal pressure of the cylinder (C1). ≪ / RTI >
KR1020140066676A 2014-06-02 2014-06-02 Instrument and Method for the precise Injection/Mixing/Gavimetry on the Liquified Gases KR101582745B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018139845A3 (en) * 2017-01-25 2018-12-06 한국표준과학연구원 Production method, production device, and container for cell-type gas certified reference material
KR20190085427A (en) * 2018-01-10 2019-07-18 한국표준과학연구원 Apparatus and method for producing Mixed Refrigerant Reference Material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100656415B1 (en) * 2005-12-30 2006-12-11 한국표준과학연구원 Liquid injection device for the preparation of standard gases

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100656415B1 (en) * 2005-12-30 2006-12-11 한국표준과학연구원 Liquid injection device for the preparation of standard gases

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018139845A3 (en) * 2017-01-25 2018-12-06 한국표준과학연구원 Production method, production device, and container for cell-type gas certified reference material
KR20190085427A (en) * 2018-01-10 2019-07-18 한국표준과학연구원 Apparatus and method for producing Mixed Refrigerant Reference Material

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