KR101600499B1 - Pretreatment Method and Pretreatment System for Sample with Maintaining Fixed Temperature, Pressure, Quantity - Google Patents

Abstract

The present invention relates to a pretreatment method and system for the constant temperature, static pressure, and quantitation of a sample introduced into a sample analyzer of a power plant. The pretreatment method and system for the constant temperature, static pressure, and quantitation of a sample introduced into a sample analyzer of a power plant according to the present invention A pretreatment method for treating a sample introduced into a sample analyzer of a power plant in a measurable state, comprising the steps of: a first step of discharging impurities through a drainage pipe when impurities are contained in a sample introduced into a sample analyzer of a power plant; ; A second step of cooling the temperature of the sample flowing into the high temperature state of 100 to 600 ° C to a temperature of 38 to 48 ° C by using the primary cooling device; A third step of removing impurities of the sample cooled and inflowed in the second step using a first filter; A fourth step of dropping the pressure of the sample introduced into the high pressure state of 10 kg / cm 2 to 350 kg / cm 2 to a pressure capable of being measured by a sample analyzer using a pressure reducing valve; A fifth step of cooling the temperature of the sample to a temperature at which the sample analyzer can measure the temperature of the sample using a secondary cooling device and maintaining the temperature at a constant temperature; A sixth step of removing impurities of the sample flowing into the constant temperature in the fifth step using a secondary filter; A seventh step of using a primary flow meter to pass through the sample analyzer as much as the total number of samples required; An eighth step of maintaining the pressure of the sample introduced into the sample analyzer at a constant pressure of 2 to 3 kg / cm < 2 > And a ninth step of maintaining the quantity of the sample introduced into each analyzer constituting the sample analyzer using a secondary flow meter at a rate of 200 cc / min to 250 cc / min.
Therefore, the present invention can standardize a sample introduced into an analyzer of a power plant in a measurable state, thereby preventing a failure of an expensive sample analyzer, thereby obtaining accurate measurement data values and reducing maintenance costs There is an effect of providing a preprocessing method and system that can be used.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pretreatment method and system for a constant temperature, a constant pressure, and a quantitation of a sample introduced into a sample analyzer of a power plant,

The present invention relates to a pretreatment method and system for constant temperature, constant pressure, and quantitation of a sample introduced into a sample analyzer of a power plant, and more particularly to a pretreatment method and system for a sample analyzer of a power plant, A pretreatment method for the constant temperature, constant pressure, and quantitation of a sample introduced into a power plant sample analyzer that can prevent a sample analyzer from malfunctioning and thereby obtain accurate measurement data values and reduce maintenance costs; and ≪ / RTI >

The operation principle of the power plant is to generate steam by using the heat transferred from the steam generator to the primary cooling system, and to transmit the generated steam through the secondary cooling system to operate the turbine. The basic structure of such a steam generator is a heat exchanger having an inverted U-shaped heat transfer tube, in which a primary coolant flows through the pipe and a secondary coolant flows through the pipe, and the steam is supplied through a pipe plate, And the heat transfer tube is supported by the vibration caused by the coolant flowing at high speed.

It is necessary to periodically analyze samples of the coolant in order to keep the coolant used as an important feedstock in such a power plant in good condition, and the sample introduced into such an analyzer is usually kept at a high temperature and a high pressure or not at a constant temperature and pressure Therefore, when there is no proper preprocessing process, there is a problem that an expensive analyzer breaks down and an inaccurate data value can not be obtained at the time of measurement, and the maintenance cost increases accordingly.

Accordingly, there is a desperate need for a realistic and applicable technology for a pretreatment process for maintaining the sample introduced into the sample analyzer of the power plant at a constant temperature, a constant pressure, and a fixed amount so that the sample satisfies measurable conditions.

Patent Registration No. KR 10-0900355 (registered on June 26, 2009)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is therefore an object of the present invention to provide a method of analyzing a sample analyzer of a power plant, And to provide a preprocessing method and system that can reduce the maintenance cost as well as obtain measurement data values.

The pretreatment method for the constant temperature, the static pressure and the quantitation of the sample introduced into the sample analyzer of the power plant according to the embodiment of the present invention is a method of pretreating the sample introduced into the sample analyzer of the power plant, A first step of discharging impurities through the drainage pipe when impurities are contained in the first step; A second step of cooling the temperature of the sample flowing into the high temperature state of 100 to 600 ° C to a temperature of 38 to 48 ° C by using the primary cooling device; A third step of removing impurities of the sample cooled and inflowed in the second step using a first filter; A fourth step of dropping the pressure of the sample flowing in a high pressure state of 10 kg / cm 2 to 350 kg / cm 2 to a pressure of 6 to 7 kg / cm 2 using a pressure reducing valve; A fifth step in which the temperature of the sample is cooled to a temperature of 23 to 25 DEG C and maintained at a constant temperature by using a secondary cooling device; A sixth step of removing impurities of the sample flowing into the constant temperature in the fifth step using a secondary filter; A seventh step of using a primary flow meter to pass through the sample analyzer as much as the total flow rate of the sample required; An eighth step of maintaining the pressure of the sample introduced into the sample analyzer at a constant pressure of 2 to 3 kg / cm < 2 > And a ninth step of maintaining the flow rate of the sample flowing into each analyzer constituting the sample analyzer using a secondary flow meter at a rate of 200 cc / min to 250 cc / min.

Here, if the temperature of the sample passed through the fifth step is sensed and the temperature of the sample exceeds the temperature of 28 ° C, it is discharged through a drainage pipe.

In addition, if the pressure of the sample passed through the fourth step is sensed and the pressure of 6 to 7 kg / cm 2 or less is not satisfied, the safety valve operates to discharge the sample to the drain water pipe.

The pretreatment system for the constant temperature, the static pressure, and the quantitation of the sample introduced into the sample analyzer of the power plant according to the embodiment of the present invention includes a sample preprocessing system to be introduced into the sample analyzer of the power plant, To a temperature in a state where measurement is possible; A plurality of decompression means for decompressing the sample introduced into the sample analyzer of the power plant to a pressure capable of being measured; A plurality of filters for removing impurities of a sample entering the sample analyzer of the power plant; A plurality of flow regulating means for regulating the flow rate of the sample introduced into the sample analyzer of the power plant to a flow rate measurable by each analyzer; And a plurality of discharge means for discharging the sample, which flows into the sample analyzer of the power plant, when the sample can not satisfy the measurable condition.

At this time, the flow path for introducing the sample into the sample analyzer is preferably formed by a piping device for organically connecting the plurality of cooling means, the pressure reducing means, the flow rate adjusting means, and the discharging means.

The plurality of cooling means may include a primary cooling device for cooling the temperature of the sample flowing at a high temperature of 100 to 600 캜 to a temperature of 38 to 48 캜; And a secondary cooling device for cooling the temperature of the sample passed through the primary cooling device to a temperature of 23 to 25 DEG C or lower so as to be measurable in a sample analyzer.

The primary cooling device may further include: a cooling water supply pipe; A primary cooler for cooling a sample flowing into a high temperature state by using cooling water supplied from the cooling water supply pipe; And a coolant recovery pipe recovered for recycling the coolant used in the primary cooler.

The secondary cooling apparatus may further include: a cooling water supply pipe; A condenser for cooling and condensing the cooling water supplied from the cooling water supply pipe to form a refrigerant for lowering the temperature of the sample, a compressor for increasing the flow rate by compressing the refrigerant formed in the condenser, and a cooler such as ammonia and furon, A secondary cooler comprising a chiller capable of cooling a sample-formed fluid to a low temperature that can not be achieved by only the refrigerant formed; And a coolant recovery pipe recovered for recycling the coolant used in the secondary cooler.

Wherein the plurality of decompression means includes a pressure reducing valve for dropping a pressure of a sample flowing in a high pressure state of 10 kg / cm 2 to 350 kg / cm 2 to a pressure of 6 to 7 kg / cm 2; And a pressure reducer for maintaining the pressure of the sample flowing through the pressure reducing valve and flowing into the sample analyzer at a constant pressure of 2 to 3 kg / cm < 2 >.

The plurality of flow rate regulating means may include a primary flow meter for regulating the flow rate of the sample to be passed through the sample analyzer by a total amount of the required sample; And a secondary flow meter for adjusting the flow rate of the sample introduced into each analyzer constituting the sample analyzer to 200 cc / min to 250 cc / min.

The plurality of discharging means may include a shutoff valve for shutting off the flow path when impurities are excessively mixed when the sample is introduced or when the temperature of each sample passing through the plurality of cooling means exceeds a permissible range; A discharge valve for discharging the sample to the drain pipe in response to the operation of the shut-off valve; And a safety valve for guiding the flow path to the drain pipe when the pressure of each sample passing through the plurality of pressure reducing means exceeds an allowable range.

As described above, according to the present invention, it is possible to standardize a sample introduced into an analyzer of a power plant in a measurable state, thereby preventing an expensive sample analyzer from failing, thereby obtaining accurate measurement data values, There is an effect of providing a preprocessing method and system capable of reducing cost.

1 is a block diagram schematically illustrating a pretreatment system for constant temperature, static pressure, and quantitation of a sample introduced into a sample analyzer of a power plant according to an embodiment of the present invention.
FIG. 2 is an overall configuration diagram for explaining the preprocessing system shown in FIG. 1 in detail.
FIG. 3 is a flowchart schematically showing a preprocessing method for constant temperature, static pressure, and quantitation of a sample introduced into a sample analyzer of a power plant according to an embodiment of the present invention.

Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art, and the following embodiments may be modified in various other forms, The present invention is not limited to the following embodiments. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an," and "the" include plural forms unless the context clearly dictates otherwise. Also, "comprise" and / or "comprising" as used herein specify the presence of stated shapes, numbers, steps, operations, elements, elements, and / , But does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups. As used herein, the term "and / or" includes any and all combinations of any of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, regions and / or regions, it should be understood that these elements, components, regions, layers and / Do. These terms do not imply any particular order, top or bottom, or rank, and are used only to distinguish one member, region or region from another member, region or region. Thus, the first member, region or region described below may refer to a second member, region or region without departing from the teachings of the present invention.

Meanwhile, the present invention is applied to a pretreatment method and a pretreatment system for constant temperature, static pressure, and quantitation of a sample introduced into a sample analyzer of a power plant.

A sample used in the present specification refers to a sample to be introduced into a sample analyzer of a power plant and may indicate a fluid of a piping device forming a flow path.

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

1 is a block diagram schematically illustrating a pretreatment system for constant temperature, static pressure, and quantitation of a sample introduced into a sample analyzer of a power plant according to an embodiment of the present invention.

As shown in the drawing, a pretreatment system for constant temperature, constant pressure, and quantitation of a sample introduced into a sample analyzer of a power plant according to an embodiment of the present invention includes a cooling means 100, a depressurization means 200, And a discharging unit 400. The filter 510 is formed inside the piping unit 500. The filter 510 is connected to the piping unit 500 through the piping unit 500,

FIG. 2 is an overall configuration diagram for explaining the preprocessing system shown in FIG. 1 in detail.

Referring to FIG. 2, the preprocessing system shown in FIG. 1 will be described in detail as follows.

As shown in the figure, the cooling means 100 of FIG. 1 may be provided in plurality to make the temperature of the sample introduced into the sample analyzer of the power plant at a measurable level.

More specifically, the cooling means (100) comprises a primary cooling device for cooling the temperature of the sample flowing at a high temperature of 100 to 600 ° C to a temperature of 38 to 48 ° C, And a secondary cooling device that cools the sample to a temperature below 23-25 ° C to enable the sample analyzer to measure the temperature.

Here, the primary cooling apparatus includes a primary cooling water supply pipe 111 for supplying cooling water, a primary cooler 111 for cooling a sample flowing in a high temperature state using cooling water supplied from the primary cooling water supply pipe 111, And a primary coolant recovery pipe 113 that recovers the cooling water used in the primary cooler 112 for recycling.

The primary cooling water supply pipe 111 and the primary cooling water recovery pipe 113 may be provided with a temperature gauge 1 and a pressure gauge 2 for checking the state of the cooling water.

The shutoff valve 3 and the discharge valve 4 (in the previous stage of the primary cooler 112) are controlled so that the sample is no longer introduced into the sample analyzer when the state of the temperature gauge 1 and the pressure gauge 2 is abnormal. ). Here, the shut-off valve 3 is a valve that locks the pipeline into which the sample is introduced into the analyzer so that no further sample is introduced into the analyzer, and the discharge valve 5 is a valve through which the sample introduced into the pre- Respectively.

The secondary cooling apparatus includes a secondary cooling water supply pipe 121 for supplying cooling water, a secondary cooler 122 for further cooling the sample passed through the primary cooling apparatus, And a second cooling water recovery pipe 123 for recovering the cooling water used in the second cooling water recovery pipe 123.

At this time, the secondary cooler 122 includes a condenser for cooling the cooling water supplied from the secondary cooling water supply pipe 121 to form a refrigerant for lowering the temperature of the sample, a condenser for compressing the refrigerant formed in the condenser, A chiller unit for cooling a sample-formed fluid up to a low temperature which can not be achieved only by a refrigerant formed of cooling water by using a solvent such as ammonia and furon.

The secondary cooling water recovery pipe 123 may be provided with a temperature gauge 1 and a pressure gauge 2 that can confirm the state of the cooling water like the primary cooling water recovery pipe 113.

Unlike the primary cooling water supply pipe 111, a temperature gauge and a pressure gauge are not provided in the secondary cooling water supply pipe 121. This is because the chiller constituting the secondary cooler 122 formed by the chiller unit is automatically Since an automatic sensor for sensing temperature and pressure can be provided.

On the other hand, a temperature sensor 5 is provided at the rear end of the secondary cooler 122 constituting the secondary cooling device, so that the temperature of the sample that has passed through the secondary cooler 122 can be measured at a temperature The shutoff valve 3 and the discharge valve 4 are operated through the interlocking device 6 so that the sample can be discharged to the drain pipe.

In an embodiment of the present invention, the temperature of the sample passed through the second cooler 122 is preferably 23 to 25 ° C, and when passing through the first cooler 112, it is preferable that the temperature is 38 to 48 ° C .

Further, as shown in the drawings, the decompression means 200 of FIG. 1 may include a plurality of decompression means 200 for decompressing the sample introduced into the sample analyzer of the power plant to a measurable pressure.

More specifically, the plurality of decompression means includes a decompression valve 210 for dropping the pressure of the sample flowing in a high pressure state of 10 kg / cm 2 to 350 kg / cm 2 to a pressure of 6 to 7 kg / cm 2, 210 to maintain the pressure of the sample flowing into the sample analyzer at a constant pressure of 2 to 3 kg / cm < 2 >.

At this time, a pressure gauge 2 for sensing the pressure of the sample is provided at the rear end of the pressure reducing valve 210. When the pressure of the sample passing through the pressure reducing valve 210 exceeds 7 kg / To discharge the sample to the drain pipe.

In the embodiment of the present invention, the flow rate regulating means 300 of FIG. 1 has a plurality of regulators for regulating the flow rate of the sample introduced into the sample analyzer of the power plant to a measurable flow rate at each analyzer, as shown in the figure .

That is, the plurality of flow rate regulating means includes a primary flow meter 310 for controlling the flow rate of the sample to be passed by the total flow rate of the sample required by the sample analyzer, and a flow rate measuring device for measuring the flow rate of the sample flowing into each analyzer constituting the sample analyzer, And a secondary flow meter 320 for controlling the flow rate of the water to 250 cc / min.

In addition, the pretreatment system according to the embodiment of the present invention includes a plurality of discharge means 400 for draining a sample introduced into a sample analyzer of a power plant when the sample can not be measured.

Here, the plurality of discharge means (400) includes a shutoff valve (400) for shutting off the flow path when the temperature of each sample passing through the plurality of cooling means exceeds the permissible range, A discharge valve 4 for discharging the sample to the drain pipe in accordance with the operation of the shut-off valve 3, and a drain valve 4 for discharging the sample to the drain pipe when the pressure of each sample passing through the pressure- To the drain pipe.

Meanwhile, the pretreatment system for the constant temperature, the static pressure, and the quantitation of the sample introduced into the sample analyzer of the power plant according to the embodiment of the present invention includes a plurality of cooling means, decompression means, flow rate control means, The flow path can be formed by the piping device 500 that is connected to the piping device.

In addition, as shown in the drawing, a plurality of filters 510 for removing impurities of a sample may be provided in the piping device 500.

FIG. 3 is a flowchart schematically showing a preprocessing method for constant temperature, static pressure, and quantitation of a sample introduced into a sample analyzer of a power plant according to an embodiment of the present invention.

The flow chart of FIG. 3 will be described in detail with reference to the configuration of the preprocessing system shown in FIG.

As shown in the drawing, a pretreatment method for a constant temperature, a static pressure, and a quantitation of a sample introduced into a sample analyzer of a power plant according to an embodiment of the present invention includes a impurity discharge step (S10), a primary cooling step (S20) The first filtering step S30, the first decompressing step S40, the second cooling step S50, the second filtering step S60, the first flow rate adjusting step S70, the second pressure reducing step S80, And a second flow rate control step (S90).

More specifically, the impurity discharge step (S10) is a first step of discharging impurities through the drainage pipe when impurities are contained in the sample flowing into the sample analyzer of the power plant.

The primary cooling step S20 is a second step of cooling the temperature of the sample flowing into the high temperature state of 100 to 600 DEG C to a temperature of 38 to 48 DEG C by using the primary cooling device 112 of FIG.2 .

The first filtering step S30 is a third step of removing the impurities of the sample cooled in the second step by using the first filter 510 shown in FIG.

The first depressurization step S40 is a step of depressurizing the sample introduced into the high pressure state of 10 kg / cm2 to 350 kg / cm2 by using the pressure reducing valve 210 of Fig. 2 at a pressure of 6 to 7 kg / .

When the pressure of the sample passing through the fourth step is sensed and exceeds 8 kg / cm 2, the safety valve 7 of FIG. 2 operates to discharge the sample to the drain water pipe.

The secondary cooling step (S50) is a fifth step of cooling the temperature of the sample to a temperature of 23 to 25 占 폚 and maintaining it at a constant temperature by using the secondary cooling device 122 of Fig.

Detecting the temperature of the sample passed through the fifth step, and discharging the sample through the drainage pipe when the temperature exceeds 28 ° C.

The second filtering step S60 is a sixth step of removing the impurities of the sample flowing into the constant temperature in the fifth step using the secondary filter 520 of FIG.

The first flow rate control step (S70) is a seventh step in which the flow rate of the sample required for the sample analyzer is passed through the primary flow meter 310 of FIG.

The second depressurization step S80 is an eighth step of maintaining the pressure of the sample introduced into the sample analyzer using the pressure reducer 220 of FIG. 2 at a constant pressure of 2 to 3 kg / cm.sup.2.

The second flow rate control step (S90) is performed by using the second flow meter 320 of FIG. 2 to keep the flow rate of the sample flowing into each analyzer constituting the sample analyzer from 200 cc / min to 250 cc / min This is the ninth step.

At this time, various analyzers constituting the sample analyzer can be used in various analyzers according to the purpose of use, and in the embodiment of the present invention, a PH analyzer, a conductive analyzer, a silica analyzer, and an oxygen analyzer have.

As described above, the present invention can standardize a sample introduced into an analyzer of a power plant in a measurable state, thereby preventing an expensive sample analyzer from malfunctioning. Accordingly, accurate measurement data can be obtained, There is an effect of providing a pre-processing method and system that can reduce the number

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It is within the scope of the present invention that component changes to such an extent that they can be coped evenly within a range that does not deviate from the scope of the present invention.

1: Pressure gauge 2: Temperature gauge
3: Shutoff valve 4: Discharge valve
5: Temperature sensor 6: Interlocking device
7: Safety valve 100: Cooling means
111: primary cooling water supply piping 112: primary cooling water
113: primary cooling water recovery pipe 121: secondary cooling water supply pipe
122: Secondary cooler
123: Secondary cooling water recovery pipe 200: Decompression means
210: Reducing valve 220: Reducer
300: Flow regulating means 310: Primary flow meter
320: Secondary flow meter 400: Discharge means
500: piping device (tubing device) 510: filter

Claims (10)

A pretreatment method for a sample to be introduced into a sample analyzer of a power plant,
A first step of discharging impurities through a drainage pipe when impurities are contained in the sample introduced into the sample analyzer of the power plant;
A second step of cooling the temperature of the sample flowing into the high temperature state of 100 to 600 ° C to a temperature of 38 to 48 ° C by using the primary cooling device;
A third step of removing impurities of the sample cooled and inflowed in the second step using a first filter;
A fourth step of dropping the pressure of the sample flowing in a high pressure state of 10 kg / cm 2 to 350 kg / cm 2 to a pressure of 6 to 7 kg / cm 2 using a pressure reducing valve;
A fifth step in which the temperature of the sample is cooled to a temperature of 23 to 25 DEG C and maintained at a constant temperature by using a secondary cooling device;
A sixth step of removing impurities of the sample flowing into the constant temperature in the fifth step using a secondary filter;
A seventh step of using a primary flow meter to pass through the sample analyzer as much as the total flow rate of the sample required;
An eighth step of maintaining the pressure of the sample introduced into the sample analyzer at a constant pressure of 2 to 3 kg / cm < 2 > And
And a ninth step of maintaining the flow rate of the sample flowing into each of the analyzers constituting the sample analyzer using a secondary flow meter at a rate of 200 cc / min to 250 cc / min. Pretreatment method for constant temperature, constant pressure, and determination of sample
The method according to claim 1,
Detecting the temperature of the sample passing through the fifth step and discharging the sample through the drainage pipe when the temperature exceeds 28 ° C. Pretreatment method for
The method according to claim 1,
Detecting the pressure of the sample passing through the fourth step and discharging the sample to the drainage pipe when the safety valve is operated when the pressure exceeds 7 kg / cm < 2 > Pretreatment method for constant temperature, constant pressure, and determination of sample
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