KR102011999B1 - Total organic carbon measuring device with oxidation pre-treatment unit integral fluid movement system - Google Patents

Abstract

The present invention relates to a total organic carbon measuring apparatus employing an integrated fluid transfer system of oxidation and pretreatment devices which enables easy measurement of organic carbon in water by using the integrated fluid transfer system incorporating a pretreatment device, a reactor, a multi-channel valve, a pump, and the like. That is, the present invention is to provide a total organic carbon measuring apparatus employing the fluid transfer system integrated with the oxidation and pretreatment devices to accurately measure the organic carbon in water by using an integrated fluid transfer system integrally formed in one body comprising: a pretreatment device for removing inorganic carbon other than organic carbon contained in a sample; a reactor and an oxidant supply means for oxidation of the organic carbon; and a multi-channel valve and a pump for selecting and supplying the sample, an oxidizing agent and the like to the reactor or transferring only the organic carbon obtained by oxidation to a measuring unit.

Description

Total organic carbon measuring device with oxidation pre-treatment unit integral fluid movement system

The present invention relates to a total organic carbon measuring apparatus applying the oxidation and pretreatment unit integrated fluid transfer system, and more particularly, to an integrated fluid transfer system in which a pretreatment unit, a reactor, a multi-channel valve, a pump, and the like are integrally formed in one body. The present invention relates to a total organic carbon measuring device using a fluid transfer system integrated with an oxidation / pretreatment device that enables easy measurement of organic carbon in water.

In general, the total organic carbon, which is the most representative indicator for measuring organic substances, can be determined by measuring the amount of carbon possessed by organic substances.

Biochemical oxygen demand (BOD) and chemical oxygen demand (COD), which are used in the existing methods of measuring organic substances, are limited in determining the direct amount of organic matter, and can be determined through total organic carbon analysis.

Accordingly, an apparatus capable of accurately measuring total organic carbon (the amount of carbon included in organic matter), which is the most representative indicator, is required as an indicator of measurement of organic matter for water quality analysis and the like.

Conventional organic carbon measuring device is a pretreatment device that removes unnecessary inorganic carbon in addition to organic carbon contained in the sample, an oxidizer and reactor for oxidizing various organic carbon materials in water to carbon dioxide and water, and the oxidized carbon dioxide as a measuring unit As the pump and the like for transporting are composed of separate parts and interconnected, the volume and size thereof are very large, and in particular, there is a problem that the organic carbon measurement process has to be complicated.

Republic of Korea Publication No. 10-2011-0077599 (2011.07.07)

The present invention has been made to solve the above-mentioned conventional problems, a pretreatment apparatus for removing inorganic carbon other than the organic carbon contained in the sample, a reactor and oxidant supply means for the oxidation of the organic carbon, the sample and the oxidant Precise measurement of organic carbon in water using an integrated fluid transfer system consisting of a multi-channel valve and a pump that can be fed to the reactor or transported only the organic carbon obtained by oxidation in the reactor to the measuring unit. It is an object of the present invention to provide a total organic carbon measurement apparatus employing an oxidative and pretreatment unit integrated fluid transfer system.

The present invention to achieve the above object is a body frame; The upper part is connected to the sparger valve for inorganic carbon removal, the lower part is formed with an inlet port connected to the multi-channel valve, the inside of the plunger having a pore is provided in a structure that is capable of lifting up and down, one side of the body frame A syringe pump type pretreatment reactor mounted on the; Located below the syringe pump type pretreatment reactor and mounted on one side of the body frame, an outlet port and a plurality of fluid passages communicating with the inlet of the syringe pump type pretreatment reactor are radially penetrated. A multi-channel valve comprising a valve body and a rotor having a structure in which a plurality of fluid guide passages matching one of the plurality of fluid passages with the outlet port are rotatably installed in the valve body; A sample reservoir connected to a first fluid passage among fluid passages of the multi-channel valve; An acid injection reservoir connected to a second fluid passage among the fluid passages of the multi-channel valve; An oxidant injection reservoir connected to a fourth fluid passage among the fluid passages of the multichannel valve; An organic carbon discharge line connected to a fifth fluid passage among the fluid passages of the multichannel valve; A carrier gas injection line extending from an outlet of a carrier gas supply means and connected to the organic carbon discharge line; A carrier gas injection branch line branched from the carrier gas injection line and connected to a third fluid passage among fluid passages of the multichannel valve; A UV oxidizer connected to the distal end of the organic carbon discharge line and oxidizing the organic carbon transferred together with the carrier gas from the carrier gas supply means; A water removal device connected to an outlet of the UV oxidation device to primarily remove water contained in the oxidized organic carbon; A gas dry tube connected to an outlet of the water removal device to remove water secondly by using a membrane selectively passing water only; And a non-dispersed infrared detector for detecting organic carbon discharged from the gas dry tube. It provides a total organic carbon measurement device applying the oxidation and pre-treatment device integrated fluid transfer system comprising a.

Preferably, a screw motor is mounted on an upper portion of the other side of the body frame as a driving means for raising and lowering the plunger, and an inner portion of the body frame is mounted with a screw connected to a shaft and a belt of the screw motor to rotate the screw. It is characterized in that the bearing conveying body is screw-mounted to be able to lift, the lifting plate which is connected to the bearing conveying body for conveying along the screw is mounted on the upper portion of the plunger.

Preferably, the driving means for rotating the rotor of the multi-channel valve, characterized in that the lower side of the other side of the body frame is mounted with a step motor connected to the shaft of the rotor.

In addition, the carrier gas injection line is characterized in that it is equipped with a flow regulator for adjusting the carrier gas supplied to the organic carbon discharge line in a certain amount.

In addition, a branch point between the carrier gas injection line and the carrier gas injection branch line is characterized in that the first three-way valve is mounted.

In addition, a second three-way valve is mounted at the connection point between the carrier gas injection line and the organic carbon discharge line.

In addition, the outlet side of the gas dry tube is characterized in that the air pump for blowing the air is connected to assist in transporting the organic carbon to the non-dispersed infrared detector.

Preferably, the water removal device is characterized in that the organic carbon inlet and outlet is formed in the upper portion, the water storage space is formed in the lower portion, the upper portion of the water storage space is characterized in that the structure is provided with an overflow outlet.

In particular, the gas dry tube is composed of a main pipe, a membrane spaced apart from the inner diameter of the main pipe, and a water outlet formed in the lower end of the main pipe, the water contained in the organic carbon passes through the membrane to the water outlet Characterized in that it is to be discharged.

Preferably, the sixth fluid passage and the seventh fluid passage of the fluid passages of the multi-channel valve is characterized in that the sample liquid for the organic carbon measurement concentration calibration is connected.

The present invention provides the following effects through the problem solving means described above.

First, a pretreatment apparatus for removing inorganic carbon other than organic carbon included in a sample, a reactor for oxidizing organic carbon, a sample and an oxidant, and the like are supplied to the reactor or only the organic carbon obtained by oxidation in the reactor is transferred to the measuring unit. Multi-channel valves and pumps, etc. can be integrated into one body frame so that the configuration can be simplified, and a very compact organic carbon measurement assembly can be provided.

Second, the pretreatment process to remove inorganic carbon other than the organic carbon contained in the sample in a state in which the pretreatment device, the reactor, the multi-channel valve, the pump, etc. are integrally formed in one body frame, the reaction for oxidation of the organic carbon, and oxidation As a result, a series of processes of pumping and transporting only the obtained organic carbon to the measurement unit are quickly performed, and there is an advantage of accurately measuring the organic carbon in water.

1 is an overall configuration diagram showing a total organic carbon measuring apparatus applying the oxidation and pretreatment device integrated fluid transfer system according to the present invention,
2 to 4 is a perspective view showing that the syringe pump type pretreatment reactor and the multi-channel valve is mounted on one body frame of the total organic carbon measurement apparatus to which the oxidation and pretreatment device integrated fluid transfer system according to the present invention is applied.
Figure 5 is a graph showing that the inorganic carbon in the sample in various forms depending on the pH.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is a pre-treatment device for removing inorganic carbon other than the organic carbon contained in the sample and a multi-channel valve and pump for selecting and supplying the reactor, the sample and the oxidizing agent to the reactor or only the organic carbon obtained by oxidation in the reactor to the measurement unit The main point is to provide a total organic carbon measurement device using an integrated fluid transfer system combined with one back.

FIG. 1 is an overall configuration diagram showing a total organic carbon measuring apparatus applying the oxidation and pretreatment device integrated fluid movement system according to the present invention, and FIGS. 2 to 4 are attached to the oxidation and pretreatment device integrated fluid movement according to the present invention. The syringe pump type pretreatment reactor and the multi-channel valve are integrally mounted in one body frame in the configuration of the total organic carbon measuring device to which the system is applied. In FIG. 1 to FIG. 4, reference numeral 100 denotes the syringe pump type pretreatment reactor. To indicate.

The syringe pump type pretreatment reactor 100 has a function of a pretreatment apparatus for removing inorganic carbon other than organic carbon contained in a sample, a reactor function for reaction with an oxidant in a pretreatment process, and pumping organic carbon to a measuring unit. It is equipped with an integrated structure of the pump function to make.

To this end, the syringe pump type pretreatment reactor 100 is connected to the sparger valve 110 for inorganic carbon removal at the top, as shown in Figure 1, the outlet port 116 and the multi-channel valve 120 at the bottom An inlet 102 is formed to be connected, and a plunger 104 having pores therein is provided in a structure in which it can be elevated.

The syringe pump type pretreatment reactor 100 provided as described above is mounted on one side of the body frame 10 as shown in FIGS. 2 and 3.

In addition, a multi-channel valve 110 is mounted at one lower end of the body frame 10.

Thus, the syringe pump type pretreatment reactor 100 and the multi-channel valve 110 in the body frame 10 is in a state of being integrally mounted as one assembly.

The multichannel valve 110 is largely divided into a hollow valve body 112 and a rotor 118 rotatably housed in the valve body 112.

More specifically, the valve body 112 of the multi-channel valve 110 is an outlet port 116 and a plurality of fluid passages (114-1) in communication with the inlet 102 of the syringe pump type pretreatment reactor (100). ~ 114-n is provided in a radially through structure, the rotor 118 is a plurality of fluid guide passages to match one of the plurality of fluid passages (114-1 ~ 114-n) with the outlet port 116 Is provided in a structure formed therein is rotatably embedded in the valve body 112.

In particular, the rotor 118 has a plurality of fluid guide passages (not shown) for matching between the outlet port 116 and one of the fluid passages (114-1 ~ 114-n) of the valve body 112. When the rotor 118 rotates at a predetermined angle, one of the plurality of fluid passages 114-1 to 114-n formed in the valve body 112 is formed in an independent path. And a state coinciding with the outlet port 116 by one of them.

On the other hand, as a driving means for the lifting and lowering of the plunger 104, as shown in Figure 4, the screw motor 20 is mounted on the other upper portion of the body frame 10, the screw motor on the inner side of the body frame 10 A screw 24 which is connected to the shaft and the belt of the shaft 20 and rotates is mounted. In addition, a bearing conveyance member 22 is screwed to the screw 24 so as to be liftable, and an upper portion of the plunger 104 is provided. The elevating plate 106 is mounted to be connected with the bearing conveying body 22 for conveying along the screw 24.

Thus, when the screw 24 is rotated by the rotational drive of the screw motor 20, the lifting plate 106 connected to the bearing carrier 22 while the bearing carrier 22 is lifted and lifted along the screw 24. And the plunger 104 of the reactor 100 connected with the elevating plate 106 is elevated.

When the plunger 104 is raised, a sample, an acid, an oxidant or the like is injected into the reactor 100 as if the fluid of the syringe is sucked, while the organic carbon and the oxidant in the reactor 100 are lowered when the plunger 104 is lowered. The back is discharged by pressure pumping.

In addition, as a driving means for rotating the rotor 118 of the multi-channel valve 110, the other side lower portion of the body frame 10 is mounted with a step motor 30 connected to the shaft of the rotor 118, The rotor 118 rotates at a predetermined angle by the driving of the step motor 30.

At this time, the first fluid passage (114-1) of the fluid passage (114-1 ~ 114-n) of the multi-channel valve 110 to supply a sample, which is an organic carbon measurement object to the reactor (100) The stored sample reservoir 120 is connected.

In addition, the second fluid passage (114-2) of the fluid passages (114-1 ~ 114-n) of the multi-channel valve 110 to the acid to the sample to control the pH of the sample through the aeration reaction reactor (100) Acid injection reservoir 122 for injection into) is connected.

In addition, an oxidant is injected into the fourth fluid passage 114-4 among the fluid passages 114-1 through 114-n of the multichannel valve 110 to oxidize the organic carbon remaining in the reactor 100. An oxidant injection reservoir 124 is connected.

In addition, among the fluid passages 114-1 to 114-n of the multi-channel valve 110, the fifth fluid passage 114-5 includes organic carbon containing an oxidizing agent from the reactor 100 and the UV oxidizer 140. Organic carbon discharge line 126 for discharging to () is connected.

In this case, since the organic carbon discharged from the reactor 100 is not independently transferred smoothly, a carrier gas (N ₂ or aerosol) for transferring the organic carbon is required.

Thus, a carrier gas injection line 132 is connected to the organic carbon discharge line 126, and a carrier gas supply means 130 for providing a carrier gas is connected to a front end of the carrier gas injection line 132.

That is, the carrier gas injection line 132 extending from the outlet of the carrier gas supply unit 130 is connected to the organic carbon discharge line 126.

In particular, the carrier gas injection line 132 has a carrier gas injection branch line connected to the third fluid passage 114-3 of the fluid passages 114-1 to 114-n of the multi-channel valve 110. 134 is branched, and a first three-way valve 138 is mounted at a branch point between the carrier gas injection line 132 and the carrier gas injection branch line 134.

Accordingly, the first three-way valve 138 is opened to the carrier gas injection branch line 134 and the carrier gas from the carrier gas supply means 130 is branched from the carrier gas injection line 132. Along the injection branch line 134 may be supplied into the reactor 100 through the third fluid passage (114-3) of the fluid passages (114-1 ~ 114-n) of the multi-channel valve 110, and then As the plunger 104 descends in the reactor 100, the organic carbon including the oxidant may be easily discharged and transferred to the organic carbon discharge line 126 by the carrier gas.

On the other hand, the UV oxidizer 140 for oxidizing the organic carbon transported with the carrier gas from the carrier gas supply means 130 is connected to the distal end of the organic carbon discharge line 126.

At this time, the carrier gas injection line 132 is equipped with a flow regulator 136 for adjusting the carrier gas supplied to the organic carbon discharge line 126 to a predetermined amount, the carrier gas injection line 132 and the organic carbon At the connection point between the discharge lines 126, a second three-way valve 128 is mounted.

Accordingly, when the second three-way valve 128 is opened toward the UV oxidizer 140, the organic carbon discharged from the reactor 100 is easily passed to the UV oxidizer 140 through the organic carbon discharge line 126. Can be supplied.

Preferably, when the amount of the carrier gas for transporting the organic carbon supplied to the UV oxidizer 140 is insufficient, the second three-way valve 128 is a carrier gas injection extending from the carrier gas supply means 130 By opening toward the line 132 so that the carrier gas is further supplied to the organic carbon discharge line 126, the organic carbon can be easily supplied to the UV oxidizer 140 by the carrier gas.

At this time, the flow controller 136 is to adjust the amount of the carrier gas supplied to the organic carbon discharge line 126 to a constant amount (reference amount) by PID control (Proportional Integral Derivation Control).

Thus, the organic carbon supplied with the oxidant to the UV oxidizer 140 is oxidized by the UV oxidizer 140.

For reference, the total organic carbon materials exist in various forms, but for measurement, they need to be changed into one form, so that they are oxidized for this purpose. After oxidation, various organic carbon substances in water are all oxidized to carbon dioxide and water. The amount of carbon dioxide produced is proportional to the amount of organic carbon present in the water, and this principle can be used to quantify the total organic carbon concentration in the water.

Therefore, in order to oxidize the organic carbon, energy having a strong oxidizing power for breaking the bond of the organic carbon material is required, and thus, the UV oxidizer 140 is used.

At this time, the carbon dioxide (organic carbon) to be transported through the carrier gas after oxidation in the UV oxidizer 40 is not only carbon dioxide but also moisture is mixed together and transferred to the non-dispersed infrared detector 170, this moisture is measured Since it may affect the result or cause condensation in the detector and cause a failure, water removal is performed in two steps before being moved to the non-dispersed infrared detector 170.

To this end, a water removal device 150 for firstly removing water contained in the organic carbon treated by oxidation is connected to an outlet of the UV oxidation device 140, and only water is selectively selected at an outlet of the water removal device 150. The gas dry tube 160 to remove moisture by using the membrane 162 passing through it is connected.

In more detail, the water removal device 150 has an organic carbon inlet 152 and an outlet 154 formed at an upper portion thereof, a moisture storage space 156 formed at a lower portion thereof, and an upper end portion of the moisture storage space 156. The overflow outlet 158 is provided with a structure formed, when the organic carbon passes along with the carrier gas through the organic carbon inlet 152 and the outlet 154, the water is first dropped to remove the water storage space ( 156, and when the stored moisture is more than a predetermined amount, it is discharged through the overflow outlet 158.

In addition, the gas dry tube 160 may include a main pipe 164, a membrane 162 spaced apart from the inner diameter portion of the main pipe 164, and a water outlet 166 formed at a lower end of the main pipe 164. Consisting of, only the water contained in the organic carbon passes through the membrane 162 and is secondly removed and discharged to the water outlet 166.

The organic carbon thus removed is discharged from the gas dry tube 160 and transferred to the non-dispersed infrared detector 170 which detects the organic carbon, and then the amount of carbon dioxide which is organic carbon is measured.

Here, looking at the operating flow for the total organic carbon measuring device of the present invention made of the above configuration are as follows.

First, the fluid passages 114-1 to 114 formed in the valve body 112 of the multichannel valve 110 by rotating the rotor 118 of the multichannel valve 110 by driving the step motor 30. The first fluid passage 114-1 among the ns is brought into coincidence with the outlet port 116 by one of the plurality of fluid guide passages (not shown) of the rotor 118.

At this time, the first reservoir passage (114-1) of the fluid passage (114-1 ~ 114-n) of the multi-channel valve 110 is a state in which the sample storage tank 120, the sample stored as the organic carbon measurement object is connected. .

Subsequently, by rotating the screw motor 20 in the forward direction while the sparger valve 110 is opened, the screw 24 rotates while the screw motor 20 is driven and at the same time bearing the screw 24. The conveying body 22 is raised and lowered so that the lifting plate 106 connected with the bearing conveying body 22 and the plunger 104 in the syringe pump type pretreatment reactor 100 connected with the lifting plate 106 are raised. do.

Accordingly, the sample in the sample reservoir 120 passes through the first fluid passage 114-1 and the outlet port 116 as if the fluid is sucked into the syringe by the rising of the plunger 104. Is filled in the pump-type pretreatment reactor (100).

At this time, the syringe pump-type pretreatment reactor 100 is composed of a cylindrical body of ceramic material and the plunger 104 therein, the Teflon material is energized so that the sample and the inside of the body is completely pressed to eliminate the leak The ring is mounted to the outer diameter of the plunger 104.

Preferably, the syringe pump type pretreatment reactor 100 is equipped with a heater (not shown) in the outer diameter portion of the cylindrical cylindrical body of the ceramic material can be used as a high temperature and high pressure oxidizer, through which there is no additional oxidizer The oxidation of the sample can proceed simultaneously.

On the other hand, in order to measure the organic carbon in the sample (in water), it is necessary to remove the inorganic carbon as an interfering substance.

That is, the inorganic carbon in the water in total three forms, it is present as bicarbonate ions (H + + HCO _3- ), carbonate ions (2H + + CO _3- ), carbon dioxide, etc., bicarbonate ions (H + + HCO ₃ Inorganic carbon such as-) and carbonate ions (2H ++ CO _3- ) act as an interfering substance in the measurement of organic carbon, so it is necessary to remove the inorganic carbon as an interfering substance in order to measure the organic carbon in the sample (in water).

Referring to FIG. 5, when the pH of the water is lowered to 2 or less to remove inorganic carbon, inorganic ions such as all ionic forms (bicarbonate ions (H ++ HCO ₃ −) and carbonate ions (2H ++ CO ₃ −) in water ) Are all converted into carbon dioxide molecules, and when the aerated inorganic carbon is aerated, all are removed to the atmosphere, and only organic carbon remains in the water.

Thus, the acid is injected into the reactor 100 for pH control.

To this end, by driving the step motor 30 to rotate the rotor 118 of the multi-channel valve 110, each of the fluid passage (114-1 ~) formed in the valve body 112 of the multi-channel valve 110 The second fluid passage 114-2 among the 114-ns is brought into a state coinciding with the outlet port 116 by one of the plurality of fluid guide passages (not shown) of the rotor 118.

Subsequently, when the plunger 104 is further raised as described above, the acid in the acid injection reservoir 122 passes through the second fluid passage 114-2 and the outlet port 116 as if the fluid is sucked into the syringe. Filled in the syringe pump type pretreatment reactor (100).

Thus, the pH of the sample is adjusted to 2 or less through the aeration reaction of the sample in the reactor 100, and all ionic forms of the sample (bicarbonate ions (H ++ HCO _3- ) and carbonate ions (2H ++ CO _3- ). Inorganic carbons such as) are all converted into carbon dioxide molecules, and the changed inorganic carbons are all removed to the atmosphere by the aeration reaction, and only the organic carbon material remains in the sample.

At this time, the inorganic carbon removed by the aeration reaction is discharged into the atmosphere through the tube and the open sparger valve 110, which depends on the plunger 104.

On the other hand, the total organic carbon remaining in the reactor 100 is present in a variety of forms, which must be changed to a single form for measurement, so that the oxidation must be oxidized for this purpose, the various organic carbon materials in the water are all carbon dioxide and It is oxidized to water, and the amount of oxidized carbon dioxide is proportional to the amount of organic carbon present in the water. Through this principle, the total organic carbon concentration in the water can be quantified.

Thus, before discharging the total organic carbon remaining in the reactor 100 to the UV oxidizer 140, an oxidant for oxidation is injected.

To this end, by driving the step motor 30 to rotate the rotor 118 of the multi-channel valve 110, each of the fluid passage (114-1 ~) formed in the valve body 112 of the multi-channel valve 110 The fourth fluid passage 114-4 of 114-n is brought into a state coinciding with the outlet port 116 by one of the plurality of fluid guide passages (not shown) of the rotor 118.

Accordingly, when the plunger 104 is driven upward as described above, the oxidant stored in the oxidant injection reservoir 124 is injected into the reactor 100 through the fourth fluid passage 114-4 and the outlet port 116.

Next, the organic carbon and the oxidant remaining in the reactor 100 are discharged to the UV oxidizer 140 for organic carbon oxidation.

However, since the organic carbon discharged from the reactor 100 does not independently transfer itself smoothly, a carrier gas (N ₂ or aerosol) is required to transfer the organic carbon.

To this end, the first three-way valve 138 is opened to the carrier gas injection branch line 134 as described above, and the step motor 30 is driven to drive the rotor 118 of the multi-channel valve 110. Rotates the third fluid passage 114-3 of the fluid passages 114-1 to 114-n formed in the valve body 112 of the multi-channel valve 110 to form a plurality of rotors 118. The carrier gas injection branch line branched from the carrier gas injection line 132 after the carrier gas from the carrier gas supply means 130 is matched with the outlet port 116 by one of the fluid guide passages (not shown). 134 is supplied into the reactor 100 through the third fluid passage 114-3 of the fluid passages 114-1 through 114-n of the multichannel valve 110.

Next, the organic carbon including the oxidant in the reactor 100 is moved to the UV oxidizer 140 via the oxidant carrier gas.

To this end, the step motor 30 is driven to rotate the rotor 118 of the multi-channel valve 110 to rotate each of the fluid passages 114-1 to 114-n of the multi-channel valve 110. The fifth fluid passage 114-5 connected to the carbon discharge line 126 is aligned with the outlet port 116.

Subsequently, by rotating the screw motor 20 in a reverse direction, the screw 24 is rotated by the driving of the screw motor 20 and at the same time, the bearing carrier 22 and the lifting plate connected to the bearing 24 are rotated along the screw 24. 106, the plunger 104 in the syringe pump type pretreatment reactor 100 connected with the elevating plate 106 is lowered.

Subsequently, the organic carbon containing the oxidant is easily discharged to the organic carbon discharge line 126 by the carrier gas by the pressure pumping action by the lowering of the plunger 104 in the reactor 100 to the UV oxidizer 140. Are transferred.

On the other hand, as described above, the carrier gas injection line 132 is equipped with a flow regulator 136 for adjusting the carrier gas supplied to the organic carbon discharge line 126 to a certain amount, the carrier gas injection line 132 and the A second three-way valve 128 is mounted at the connection point between the organic carbon discharge lines 126.

Thus, when the amount of the carrier gas for transporting the organic carbon supplied to the UV oxidizer 140 is insufficient, the second three-way valve 128 is a carrier gas injection line extending from the carrier gas supply means 130 ( Open to 132 so that the carrier gas is further supplied to the organic carbon discharge line 126, the organic carbon can be easily supplied to the UV oxidizer 140 by the carrier gas.

At this time, the flow controller 136 is to adjust the amount of the carrier gas supplied to the organic carbon discharge line 126 to a constant amount (reference amount) by PID control (Proportional Integral Derivation Control).

Next, the organic carbon supplied with the oxidant to the UV oxidizer 140 is oxidized by the UV oxidizer 140.

The UV oxidizer 140 serves to oxidize the total organic carbon in the sample, the UV lamp is mounted therein, the surroundings are provided with a structure wrapped around the glass outer wall, so that the sample is UV lamp and glass outer wall Will pass through.

At this time, the distance between the UV lamp and the outer wall of the configuration of the UV oxidizer 140 is designed at the optimum interval to receive the wavelength energy of the UV lamp to have the best direct contact method for oxidizing the organic carbon, wavelength Two wavelengths of 185nm and 254nm, which have high oxidizing power, are generated at the same time, thereby forming ozone as well as UV energy to obtain additional oxidizing power by ozone.

Thus, when the UV oxidizer 140 passes through, all the organic carbon material is oxidized to carbon dioxide and water, and the amount of the oxidized carbon dioxide is proportional to the amount of organic carbon present in the sample. Can be quantified.

On the other hand, carbon dioxide (organic carbon) that is transported through the carrier gas after oxidation in the UV oxidizer 140 is simply mixed with water as well as carbon dioxide is transferred to the non-dispersed infrared detector 170, this moisture is measured Since it may affect the result or cause condensation in the detector and cause a failure, water removal is performed in two steps before being moved to the non-dispersed infrared detector 170.

To this end, when the organic carbon passes along with the carrier gas through the organic carbon inlet 152 and the outlet 154 of the water removal device 150, the water falls to the moisture storage space 156 is removed first If the stored moisture is more than a certain amount, it is discharged through the overflow outlet 158.

Subsequently, the organic carbon passing through the water removing device 150 passes through the inside of the membrane 162 in the main pipe 164 of the gas dry tube 160, so that only water contained in the organic carbon is the membrane 162. Passed through and discharged to the water outlet 166 is removed second.

The organic carbon thus removed is discharged from the gas dry tube 160 and transferred to the non-dispersed infrared detector 170 which detects the organic carbon, and then the amount of carbon dioxide which is organic carbon is measured.

In this case, an air pump 172 for blowing air is connected to the outlet side of the gas dry tube 160 to assist the organic carbon from being transferred to the non-dispersed infrared detector 170. The organic carbon easily passes through the non-dispersed infrared detector 170 by the blowing force.

The non-dispersive infrared detector 170 has a non-dispersive infrared absorption (NDIR) as a detection method for measuring carbon dioxide generated by oxidation, and is a device for detecting carbon dioxide generated by oxidation. It is composed of a light source that irradiates light of infrared wavelengths, a passage through which gas can pass, and a detector that detects infrared wavelengths, and can selectively detect only carbon dioxide, which can be utilized in a wide area. .

Accordingly, the specific wavelength of the infrared region irradiated from the light source of the non-dispersion infrared detector 170 meets and absorbs carbon dioxide molecules in the measurement gas (organic carbon), so that the signal value finally detected by the detector 170 is The results are inversely proportional to the carbon dioxide concentration, and based on this principle, the total organic carbon concentration quantified is easily measured.

On the other hand, the sixth fluid passage (114-6) and the seventh fluid passage (114-7) of the fluid passages (114-1 ~ 114-n) of the multi-channel valve 110, respectively, the organic carbon measurement concentration calibration In order to connect the sample liquid container 125 in which a sample having a different TOC concentration is stored.

Therefore, while circulating the sample stored in the sample liquid container 125 through the above-described process, the organic carbon in the sample can be measured in advance so as to set a standard measurement concentration, and when measuring the organic carbon in the actual sample thereafter, Compared with the reference measurement concentration, it is possible to determine whether the current measurement concentration level is correct, and if it is not correct, it is possible to perform organic carbon measurement calibration.

As seen above, a pretreatment apparatus for removing inorganic carbon other than organic carbon contained in a sample, a reactor for oxidizing organic carbon, a sample and an oxidant, and the like are supplied to the reactor or obtained by oxidizing in the reactor. By incorporating a pump or the like capable of transferring only the measurement unit to the syringe pump type pretreatment reactor 100 and the multi-channel valve 110 mounted on one body frame 10 as described above, While simplifying the configuration, it is possible to provide a very compact organocarbon measurement assembly.

In addition, the syringe pump-type pretreatment reactor 100 and the multi-channel valve 110 is integrally mounted on one body frame 10, the pre-treatment process to remove inorganic carbon other than the organic carbon contained in the sample, and organic The reaction for oxidation of carbon and a series of processes of pumping and transporting only the oxidized organic carbon to the measurement unit are quickly performed, and the organic carbon in water can be accurately measured.

On the other hand, the anti-corrosion coating layer may be applied to the periphery of the screw 24 to prevent corrosion of the metal surface, the anti-corrosion coating layer, 20 weight% guanadino benzoimidazole, 15 weight oxycarboxylic acid leaf %, 10% by weight of imidazoline thione, 15% by weight of hafnium, 10% by weight of molybdenum emulsion (MoS2), 25% by weight of aluminum oxide, 5% by weight of diglycidyl aniline, the coating thickness of 7㎛ Can be.

Guanadino benzoimidazole, oxycarboxylic acid leaf, imidazoline thione, and diglycidyl aniline serve as corrosion protection and discoloration prevention.

Hafnium is a corrosion-resistant transition metal element that serves to have excellent waterproofness and corrosion resistance.

Molybdenum emulsion plays a role of imparting slidability and lubricity to the surface of the coating film.

Aluminum oxide is added for the purpose of fire resistance, chemical stability, and the like.

The reason for limiting the numerical value of the ratio and the coating thickness of the components as described above, the inventors analyzed through the test results several times, showed the optimum anti-corrosion effect at the ratio.

In addition, the bearing transfer member 22 may be formed with an antifouling coating layer coated with an antifouling coating composition so as to effectively prevent adhesion and removal of contaminants.

The antifouling coating composition includes ampodiglycinate and sorbitol ester in a 1: 0.01 to 1: 2 molar ratio, and the total content of ampodiglycinate and sorbitol ester is 1 to 10% by weight based on the total aqueous solution. to be.

The ampodiglycinate and sorbitol esters are preferably in a molar ratio of 1: 0.01 to 1: 2. When the molar ratio is out of the above range, the applicability of the bearing carrier 22 may be deteriorated or moisture adsorption of the surface after application may occur. There is a problem that the coating film is removed to increase.

1 to 10% by weight of the ampodiglycinate and sorbitol esters in the total composition aqueous solution are preferred. If less than 1% by weight, the applicability of the bearing carrier 22 is lowered. Crystal precipitation is likely to occur due to an increase in the coating film thickness.

On the other hand, it is preferable to apply | coat by the spray method as a method of apply | coating this antifouling coating composition on the bearing conveyance body 22. As shown in FIG. In addition, the final coating film thickness on the bearing conveying body 22 is preferably 500 to 2000 kPa, more preferably 1000 to 2000 kPa. If the thickness of the coating film is less than 500 kPa, there is a problem of deterioration in the case of high temperature heat treatment, and if the thickness of the coating film exceeds 2000 kPa, crystal precipitation of the coated surface is liable to occur.

In addition, the present antifouling coating composition may be prepared by adding 0.1 mol of ampodiglycinate and 0.05 mol of sorbitol ester to 1000 ml of distilled water, followed by stirring.

And, the connection portion of the second three-way valve 128 and the organic carbon discharge line 126 may be provided with an airtight packing, the raw material content of the packing is 60% by weight of rubber, carbon black 33 ~ 36 Mix by weight, 2 to 5 weight percent antioxidant, and 1 to 3 weight percent sulfur, an accelerator.

Carbon black is added to increase the wear resistance, but if the content is less than 33% by weight, the elasticity and abrasion resistance is reduced, if the content exceeds 36% by weight, the rubber content of the main component is relatively small, there is a fear that the elastic force is lowered , 33 to 36% by weight.

Antioxidants add 2 to 5% by weight of 3C (N-PHENYL-N'-ISOPROPYL-P-PHENYLENEDIAMINE) or RD (POLYMERIZED 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINE) If it is less than the weight%, the product is easy to oxidize, and if it is added too much, if it exceeds 5 weight%, the rubber content of the main component is relatively small, and the elastic force may be reduced. ~ 5% by weight is appropriate.

Sulfur, an accelerator, is mixed with 1-3 wt%. Less than 1% by weight is a slight vulcanization effect in the heating step during molding, so 1% by weight or more is added. If it exceeds 3% by weight, the content of rubber, which is a main component, is relatively low, and there is a possibility that the elastic force may drop, so 1 to 3% by weight is appropriate.

Therefore, since the present invention is reinforced with synthetic rubber having elasticity in various directions, the elasticity, toughness and rigidity of the packing are increased, so that durability is improved, thereby increasing the life of the packing.

10: body frame 20: screw motor
22: bearing carrier 24: screw
30: step motor 100: syringe pump type pretreatment reactor
102: inlet 104: plunger
106: elevating plate 108: sparger valve
110: multi-channel valve 112: valve body
114-1 to 114-n: Multiple fluid passages
114-1: First fluid passage 114-2: Second fluid passage
114-3: Third fluid passage 114-4: Fourth fluid passage
114-5: 5th fluid passage 114-6: 6th fluid passage
114-7: 7th fluid passage 116: exit port
118: rotor 120: sample reservoir
122: acid injection reservoir 124: oxidant injection reservoir
125: sample liquid container 126: organic carbon discharge line
128: second three-way valve 130: carrier gas supply means
132: carrier gas injection line 134: carrier gas injection branch line
136: flow regulator 138: first three-way valve
140: UV oxidation device 150: Moisture removal device
152: organic carbon inlet 154: organic carbon outlet
156: water storage 158: overflow outlet
160: gas dry tube 162: membrane
164: main pipe 166: water outlet
170: non-dispersive infrared detector 172: air pump

Claims (4)

Body frame 10;
The inorganic carbon removal sparger valve 108 is connected to the upper part, and an inlet port 102 is formed to be connected to the multi-channel valve 110 at the lower part, and a plunger 104 having pores therein can be lifted and lowered. It is provided in a structure, the syringe pump type pretreatment reactor (100) mounted on one side of the body frame (10);
Located at the bottom of the syringe pump type pretreatment reactor 100 and mounted at one side of the body frame 10, an outlet port communicating with the inlet 102 of the syringe pump type pretreatment reactor 100 ( 116 and the hollow valve body 112 through which the plurality of fluid passages 114-1 through 114-n are radially penetrated, and one of the plurality of fluid passages 114-1 through 114-n as an outlet port. A multi-channel valve (110) including a rotor (118) rotatably installed in the valve body (112) provided with a structure formed therein with a plurality of fluid guide passages coinciding with 116;
A sample reservoir 120 connected to the first fluid passage 114-1 of the fluid passages 114-1 to 114-n of the multi-channel valve 110;
An acid injection reservoir 122 connected to the second fluid passage 114-2 of the fluid passages 114-1 to 114-n of the multichannel valve 110;
An oxidant injection reservoir 124 connected to the fourth fluid passage 114-4 of the fluid passages 114-1 through 114-n of the multichannel valve 110;
An organic carbon discharge line 126 connected to the fifth fluid passage 114-5 among the fluid passages 114-1 through 114-n of the multichannel valve 110;
A carrier gas injection line 132 extending from an outlet of the carrier gas supply unit 130 and connected to the organic carbon discharge line 126;
A carrier gas injection branch line branched from the carrier gas injection line 132 and connected to the third fluid passage 114-3 of the fluid passages 114-1 to 114-n of the multichannel valve 110 ( 134);
A UV oxidizer 140 connected to the distal end of the organic carbon discharge line 126 to oxidize the organic carbon transferred together with the carrier gas from the carrier gas supply unit 130;
A water removal device 150 connected to the outlet of the UV oxidation device 140 to primarily remove moisture contained in the oxidized organic carbon;
A gas dry tube 160 connected to an outlet of the water removing device 150 to remove water secondly using a membrane 162 selectively passing water only; And
And a non-dispersive infrared detector (170) for detecting organic carbon emitted from the gas dry tube (160);
As a driving means for raising and lowering the plunger 104, the screw motor 20 is mounted on the other side of the body frame 10, the shaft and the belt of the screw motor 20 on the inner side of the body frame 10 Is equipped with a rotating screw (24),
A bearing carrier 22 is screwed to the screw 24 so as to be lifted and lowered, and an elevating plate 106 connected to the bearing carrier 22 for feeding along the screw 24 to the upper portion of the plunger 104. Is mounted;
As a driving means for rotating the rotor 118 of the multi-channel valve 110, the other side lower portion of the body frame 10 is characterized in that the step motor 30 is connected to the shaft of the rotor 118 is mounted Total organic carbon measuring device using an oxidative pretreatment device integrated fluid transfer system.
delete delete The method according to claim 1,
The carrier gas injection line 132 is equipped with a flow regulator 136 for controlling the carrier gas supplied to the organic carbon discharge line 126 in a predetermined amount;
A first three-way valve (138) is mounted at a branch point between the carrier gas injection line (132) and the carrier gas injection branch line (134);
A second three-way valve 128 is mounted at a connection point between the carrier gas injection line 132 and the organic carbon discharge line 126;
An air pump 172 is connected to an outlet side of the gas dry tube 160 to blow air to assist the organic carbon to be transferred to the non-dispersed infrared detector 170;
The moisture removal device 150 has an organic carbon inlet 152 and an outlet 154 formed at the upper portion, a water storage space 156 is formed at the bottom, and an overflow outlet (top) at the upper end of the water storage space 156. 158 is provided in a formed structure;
The gas dry tube 160 includes a main pipe 164, a membrane 162 inserted into an inner diameter portion of the main pipe 164, and a water outlet 166 formed at a lower end of the main pipe 164. To pass through the membrane 162 to the water outlet 166;
The sixth fluid passage (114-6) and the seventh fluid passage (114-7) of the fluid passages (114-1 ~ 114-n) of the multi-channel valve 110 for the sample liquid reservoir for calibration of the organic carbon measurement concentration Total organic carbon measurement device to which the fluid transfer system integrated with the oxidation and pretreatment device, characterized in that the 125 is connected.

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