KR20200043222A - Boron meter test system and boron meter test method using the same - Google Patents

Abstract

The present invention relates to a boron meter inspection system and a boron meter inspection method using the same, in which the boron meter inspection system includes: a pressure container having an accommodation space formed in the pressure container to accommodate a coolant where a predetermined concentration of boron is dissolved, in which an inspection target boron meter for detecting the boron included in the coolant is installed in the accommodation space; a temperature control unit installed in the pressure container to adjust a temperature of the coolant filled in the pressure container to an experimental temperature corresponding to an actual operating temperature of the boron meter; a pressure adjustment unit for adjusting an internal pressure of the pressure container to an experimental pressure corresponding to an actual operating pressure of the boron meter; a neutron source installed in the accommodation space to emit neutrons to the coolant; a data collection unit for collecting measurement data measured by the boron meter according to the neutrons emitted from the neutron source; and an analysis module for analyzing accuracy of the inspection target boron meter based on the measurement data collected through the data collection unit and information on the predetermined concentration of the boron of the coolant. According to the present invention, the boron meter inspection system and the boron meter inspection method using the same are capable of performing the inspection by setting the temperature and the pressure of the pressure container where the coolant is accommodated to the temperature and the pressure in an actual operating condition of the boron meter by the temperature control unit and the pressure control unit, so that performance inspection is performed more accurately on the inspection target boron meter.

Description

Boron meter test system and boron meter test method using the same}

The boron meter inspection system according to the present invention and the method for inspecting a boron meter using the same are a test system capable of inspecting the performance of a boron meter by performing a measurement experiment under conditions similar to the actual use conditions, and a boron meter test using the boron meter test. It's about how.

In the light reactor type nuclear power plant, natural boric acid water is added to the reactor coolant in order to control the long-term response to the combustion of nuclear fuel. Since the criticality varies depending on the concentration of boric acid, accurately measuring the concentration of boric acid in boric acid is a key factor in safe operation of nuclear power plants.

 The boron dilution accident is an accident in which the reactor reactivities increase as the boron concentration of the coolant decreases, and accordingly, the output continuously increases, thereby damaging the nuclear fuel. In order to prevent and early detect boron dilution, a boron meter capable of real-time on-line measurement is installed to continuously monitor changes in boron concentration.

 The boron concentration measurement error of the conventional boron meter is about 80 ppm in ppm error, and the% error is about 5%. Since the boron concentration measurement error of the boron meter is very large at the nuclear power plant site, it cannot be used for nuclear power plant operation such as fuel loading, start-up operation, and response control. Therefore, it is used in the limited area of understanding the tendency of boron concentration change only in the cycle of nuclear power plants with relatively low boron concentration.

Patent No. 10-1813362: Method and device for detecting boron concentration

The present invention was devised to improve the above problems, and an object thereof is to provide a boron meter inspection system and a method for inspecting a boron meter using the boron meter test system capable of testing the boron meter to be tested at a temperature and pressure in actual use conditions .

A boron meter inspection system and a boron meter inspection method using the same according to the present invention for achieving the above object are formed with a receiving space to accommodate a coolant in which boron having a predetermined concentration is dissolved therein, and the coolant is formed in the receiving space. The pressure vessel in which the boron meter to be inspected for detecting the boron contained in is installed, and the temperature of the coolant installed in the pressure vessel and filled in the pressure vessel is set to an experimental temperature corresponding to the actual operating temperature of the boron meter. A temperature adjusting unit to adjust, a pressure adjusting unit to adjust the internal pressure of the pressure vessel to an experimental pressure corresponding to the actual operating pressure of the boron meter, and a neutron source installed in the receiving space to release neutrons to the coolant. , To collect measurement data measured by the boron meter according to the neutron emitted from the neutron source Data acquisition unit, based on information about the boron concentration of the predetermined data collection of measured data collected from parts and wherein the coolant comprises an analysis module for analyzing the accuracy of the examination objective boron meter.

The temperature control unit includes an accommodation tank in which an internal space in which the coolant is accommodated is provided, an exhaust pipe connected to the pressure vessel and the accommodation tank so that coolant discharged from the pressure vessel is injected into the interior space, and the accommodation tank The heating unit is installed in the heating unit to heat the coolant accommodated in the interior space to the experimental temperature, and the injection pipe connected to the receiving tank and the pressure vessel so that the coolant accommodated in the receiving tank can be supplied to the pressure vessel, and the injection pipe It is installed in the pump to pump the coolant accommodated in the receiving tank is provided with an injection pump for injecting into the pressure vessel.

When the pressure control unit increases the internal pressure of the pressure vessel, the discharge pipe is closed to block the cooling material discharge from the pressure vessel while the coolant is injected into the pressure vessel by the operation of the injection pump. However, when the internal pressure of the pressure vessel is reduced, a first opening / closing valve installed in the discharge pipe to open the discharge pipe, and a second opening / closing valve installed in the injection pipe to selectively open and close the injection pipe, It is installed in the inlet pipe or outlet pipe, a pressure measuring unit for measuring the pressure of the coolant in the pressure vessel, and the first pressure so that the internal pressure of the pressure vessel is maintained at the experimental pressure based on the pressure data measured by the pressure measuring unit. And a pressure control module for controlling the second opening / closing valve and the injection pump.

The pressure measuring unit is installed in the injection pipe between the receiving tank and the second opening and closing valve, the first pressure measuring instrument for measuring the pressure of the coolant injected into the pressure vessel through the injection pipe, the first opening and closing valve and receiving It is preferable to have a second pressure gauge installed in the discharge pipe between the tanks to measure the pressure of the coolant in the pressure vessel.

On the other hand, the method for inspecting a boron meter according to the present invention includes a setting step of setting a boron meter to be inspected in a pressure vessel in which a neutron source emitting neutrons is installed, and in the pressure vessel in which the boron meter is set. An injection step of injecting a coolant with a concentration of boron dissolved therein, and a temperature control step of heating the temperature of the coolant accommodated in the pressure vessel to an experimental temperature corresponding to the actual use temperature of the subject boron meter, and of the pressure vessel. The pressure control step of adjusting the internal pressure to the experimental pressure corresponding to the actual working pressure of the boron meter to be inspected, and after the internal pressure of the pressure vessel and the temperature of the coolant are set to the experimental pressure and the experimental temperature, respectively, the neutron source A data collection step of collecting measurement data measured by the test target boron meter according to the neutron emitted from the boron concentrate Repetition step of repeating the injection step, the temperature control step, the pressure control step, the data collection step using a plurality of different coolant, and after the repetition step, the measurement data collected in the data collection step, the coolant And an analysis step of analyzing the accuracy of the boron meter to be inspected based on information on the boron concentration of.

The temperature control step is a heating step of heating the coolant accommodated in the inside of the receiving tank communicated with the pressure vessel through the inlet and outlet pipes to the experimental temperature using a heating unit, and an injection pump installed in the inlet pipe or outlet pipe And a circulation step of circulating the coolant accommodated in the pressure tank and the receiving tank by operating, and circulating the coolant until the temperature of the coolant accommodated in the pressure container reaches the experimental temperature.

The pressure adjusting step blocks the discharge of the coolant from the pressure vessel until the internal pressure of the pressure vessel reaches the experimental pressure, and the pressure step of injecting the coolant into the pressure vessel, and the internal pressure of the pressure vessel. When the experimental pressure is reached, a control completion step of stopping the injection of the coolant into the pressure vessel is included.

The analysis step is a relational expression of boron concentration for the measurement data based on the measurement data of the boron meter to be inspected collected in the data collection step, and information about the boron concentration of each coolant used when measuring the measurement data. A relational calculation step for calculating, and a result calculation step for calculating a result value by substituting any one of the measured data into the relational expression calculated in the relational expression calculation step, and a result value calculated in the result calculation step, It may include an accuracy calculation step of comparing the information on the boron concentration of the coolant used when measuring the measurement data substituted into the relational expression to calculate the accuracy of the boron meter to be inspected.

The analysis step is based on the information on the boron concentration of the coolant used in the measurement of some of the measurement data of the boron meter to be inspected collected in the data collection step, and some of the measurement data for the measurement data A relational calculation step of calculating a relational expression of boron concentration, a result calculation step of substituting the remainder of the measurement data into the relational expression calculated in the relational expression calculation step, and a result calculation step of the result calculation step An accuracy calculation step of calculating the accuracy of the boron meter to be inspected may be included by comparing information on boron concentration of the coolant used when measuring the value and the measurement data substituted into the relationship.

The boron meter inspection system according to the present invention and the boron meter inspection method using the same are set by setting the temperature and pressure of the pressure vessel in which the coolant is accommodated by the temperature control unit and the pressure control unit to the temperature and pressure of the actual operating conditions of the boron meter. Since it can be performed, there is an advantage that more accurate performance inspection can be performed on the boron meter to be inspected.

1 is a perspective view of a boron meter inspection system according to the present invention,
2 is a conceptual diagram of the boron meter inspection system of FIG. 1,
3 is a block diagram of a data collection unit of the boron meter inspection system of FIG. 1,
4 is a flow chart for a method for inspecting a boron meter according to the present invention,
FIG. 5 is an exemplary view of the relational expression calculated in the relational expression calculation step of the boron meter inspection method of FIG. 4.

Hereinafter, a boron meter inspection system and a boron meter inspection method using the same will be described in detail with reference to the accompanying drawings. The present invention can be applied to various changes and may have various forms, and specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosure form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing each drawing, similar reference numerals are used for similar components. In the accompanying drawings, the dimensions of the structures are shown to be enlarged than the actual for clarity of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components. For example, the first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component.

Terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "include" or "have" are intended to indicate the presence of features, numbers, steps, actions, elements, parts or combinations thereof described in the specification, one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, actions, components, parts or combinations thereof are not excluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms such as those defined in a commonly used dictionary should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

1 to 3 shows a boron meter inspection system 100 according to the present invention.

Referring to the drawings, the boron meter inspection system 100 is formed with an accommodation space 111 so that a coolant in which boron having a predetermined concentration is dissolved is accommodated therein, and included in the cooling material in the accommodation space 111. The pressure vessel 110 in which the boron meter 112 to be inspected for detecting the boron is installed, and the temperature of the coolant installed in the pressure vessel 110 and filled in the pressure vessel 110 are measured in the boron meter. Temperature control unit 200 for adjusting to the experimental temperature corresponding to the actual operating temperature of 112, and the internal pressure of the pressure vessel 110 is adjusted to the experimental pressure corresponding to the actual operating pressure of the boron meter 112 The pressure adjusting part 300, the neutron source 410 installed in the receiving space 111 to emit neutrons to the coolant, and the bolometer 112 according to the neutrons emitted from the neutron source 410 To collect measurement data measured at Is an analysis module that analyzes the accuracy of the boron meter 112 to be inspected based on data collection unit 420 and measurement data collected through the data collection unit 420 and information about a predetermined boron concentration of the coolant. 430 is provided.

The pressure vessel 110 is formed in a cylindrical shape provided with an accommodation space 111 in which a coolant can be accommodated, and is preferably formed of a material that does not undergo a chemical reaction with a coolant in which boron is dissolved. The boron meter 112 to be inspected is preferably installed on the side of the pressure vessel 110 so that it can be introduced into the receiving space 111.

The temperature control unit 200 may be an intake tank 210 provided with an inner space 211 in which the coolant is accommodated, and a coolant discharged from the pressure vessel 110 into the inner space 211. A heating unit 230 for heating the discharge vessel 220 connected to the pressure vessel 110 and the accommodation tank 210 so as to be installed in the accommodation tank 210 and the coolant accommodated in the interior space 211 to the experimental temperature. ), The injection pipe 240 connected to the receiving tank 210 and the pressure vessel 110 so that the coolant accommodated in the receiving tank 210 can be supplied to the pressure vessel 110, and the injection pipe 240 ) Is provided in the injection tank 250 to pump the coolant accommodated in the receiving tank 210 and injected into the pressure vessel 110.

The accommodation tank 210 is formed of a coolant in which boron is dissolved and a synthetic resin material that does not undergo a chemical reaction. Meanwhile, a drain pipe 212 is installed between the receiving tank 210 and the pressure container 110. The drain pipe 212 is connected to one end in communication with the lower portion of the pressure vessel 110, the other end is connected to the side of the receiving tank 210. The drain pipe 212 is provided with a drain valve 213 to open and close the internal flow path of the drain pipe 212.

The discharge pipe 220 is formed in a pipe shape provided with a flow path through which a coolant can flow, and one end is connected to the upper portion of the pressure vessel 110. The other end of the discharge pipe 220 is installed on the side of the receiving tank 210, it is preferable that it is installed below the other end of the drain pipe 212.

The heating unit 230 is installed in the receiving tank 210 so as to be introduced into the inner space 211, a plurality of heating members 231 that generate heat by the applied electricity, and the temperature of the coolant accommodated in the pressure container 110 The receiving tank so that the coolant in the pressure vessel 110 reaches the experimental temperature based on the temperature information of the temperature meter 232 installed in the discharge pipe 220 and the coolant measured from the temperature meter 232 so as to measure the It is provided with a temperature control module for controlling the heating member 231 so that the coolant in 210 is heated.

On the other hand, the heating member 231 has been described as an electric heating device that generates heat by electricity in the above-described example, but the heating member 231 is not limited to this, and if it is a heating means capable of heating the coolant in the receiving tank 210 Eden is possible.

The injection pipe 240 is formed in a pipe shape provided with a flow path through which a coolant can flow, and one end is connected to the upper side of the pressure vessel 110. The injection pipe 240 is installed in the receiving tank 210 so that the other side is installed in the upper portion of the receiving tank 210, and the other end is introduced into the inner space 211 so as to be immersed in the coolant accommodated in the receiving tank 210. It is preferred.

The injection pump 250 is installed in the injection pipe 240 and pumps the coolant of the receiving tank 210 heated by the heating unit 230 to supply it to the pressure vessel 110. By the injection pump 250, the coolant of the receiving tank 210 and the pressure vessel 110 are circulated to each other so that the coolant in the pressure vessel 110 is adjusted to the experimental temperature. Here, the temperature control module 233 stops the operation of the heating member 231 when the temperature of the coolant in the pressure vessel 110 reaches the experimental temperature based on the measured value of the temperature measuring device 232. Meanwhile, in the illustrated example, a structure in which the injection pump 250 is installed in the injection pipe 240 is illustrated, but the injection pump 250 is not limited thereto, but may be installed in the discharge pipe 220.

The pressure regulating unit 300 is installed on the first opening / closing valve 310 installed on the discharge pipe 220 and the injection pipe 240 so as to open and close the discharge pipe 220 and selectively selects the injection pipe 240. A second opening / closing valve 320 that is opened and closed with a pressure measuring unit 330 installed in the injection pipe 240 or the discharge pipe 220 to measure the pressure of the coolant in the pressure vessel 110, and the pressure measurement Pressure control module for controlling the first and second opening and closing valves 310 and 320 and the injection pump 250 so that the internal pressure of the pressure vessel 110 is maintained at the experimental pressure based on the pressure data measured from the unit 330 (Not shown).

When the first opening / closing valve 310 increases the internal pressure of the pressure vessel 110, the pressure in the state in which the coolant is injected into the pressure vessel 110 by the operation of the injection pump 250 The discharge pipe 220 is closed so as to block the discharge of the coolant from the container 110, but when the internal pressure of the pressure vessel 110 is reduced, the discharge pipe 220 is opened and easily operated even at a long distance. Solenoid valve is applied. The second opening / closing valve 320 selectively opens and closes the injection pipe 240 by the control of the pressure control module, and a solenoid valve is applied.

The pressure gauge includes a first pressure gauge 331 installed in the injection pipe 240 and a second pressure gauge 332 installed in the discharge pipe 220. The first pressure meter 331 is installed in the injection pipe 240 between the receiving tank 210 and the second opening and closing valve 320 and injected into the pressure vessel 110 through the injection pipe 240 Measure the pressure of the coolant. In addition, a second pressure meter 332 is installed in the discharge pipe 220 between the first opening and closing valve 310 and the receiving tank 210 to measure the pressure of the coolant in the pressure vessel 110. The first and second pressure measuring devices 332 are pressure measurement means conventionally used to measure the pressure of the measurement object, so detailed descriptions thereof will be omitted.

When the pressure control module increases the internal pressure of the pressure vessel 110, the second opening / closing valve 320 is operated to open the injection pipe 240 so that the coolant can be injected into the pressure vessel 110, and the injection The pump 250 is operated. At this time, the pressure control module operates the first opening / closing valve 310 and the drain valve 213 so that the discharge pipe 220 and the drain pipe 212 are closed.

Here, the pressure control module, when the pressure measured by the pressure measuring unit 330 reaches a predetermined experimental pressure, the second opening and closing valve 320 so that the injection pipe 240 is closed so that the injection of coolant into the pressure vessel 110 is stopped. ) Is operated, and the injection pump 250 is stopped.

The midline source is installed in the pressure vessel 110 to be located in the center of the receiving space 111. The neutron source is a source that emits neutrons having an energy distribution of the same intensity so as to measure the distribution of neutrons that change with boron concentration, and is disposed in the receiving space 111 of the pressure vessel 110 to emit neutrons. .

These neutron sources 410 can be made of a mixture of nuclides that cause α decay and (α, n) reaction nuclides, and the Am-Be neutron sources 410 contain (α) , n) It is possible to release a certain neutron through the reaction.

The data collection unit 420 is connected to the boron meter 112 set in the pressure vessel 110, and includes a pre-amplifier, a main amplifier, a multi-channel wave height analyzer, and a high voltage supply. The high-speed neutrons emitted from the neutron source 410 are decelerated by distilled water inside the pressure vessel 110, converted into thermal neutrons, absorbed by boric acid, and the measured value of the boron meter 112 according to the concentration of boron in the coolant. Is different. The data collection unit 420 collects the measured values of the boron meter 112 to be inspected, that is, measured data, and transmits the measured data to the analysis module 430.

The analysis module 430 analyzes the accuracy of the boron meter 112 to be inspected based on the measurement data collected through the data collection unit 420 and information about a predetermined boron concentration of the coolant. On the other hand, although the analysis module 430 is not shown in the drawing, it further includes a database that can store information about the concentration of boron in the coolant.

At this time, in the inspection process of the boron meter 112, the test of the boron meter 112 to be inspected is repeated multiple times using a plurality of coolants having different boron concentrations, and the analysis module 430 includes the boron meter 112 to be inspected. The measurement data of and the information about the boron concentration of the coolant used when measuring each measurement data are mutually matched and stored in the database. The analysis module 430 calculates the accuracy of the boron meter 112 to be inspected based on the measurement data stored in the database and information about the boron concentration of the coolant. The process of calculating the accuracy of the boron meter 112 to be inspected will be described later. It will be described in detail in the method for inspecting the boron meter of the present invention.

On the other hand, Figure 4 is a flow chart for a method for inspecting a boron meter using the boron meter inspection system 100 of the present invention.

Referring to the drawings, the boron meter inspection method is a setting step (S110), an injection step (S120), a temperature control step (S130), a pressure control step (S140), a data collection step (S150), a repeating step (S160) and Analysis step (S170).

The setting step (S110) is a step of setting the boron meter 112 to be inspected in the pressure vessel 110. At this time, the pressure vessel 110 is a neutron source 410 that emits neutrons is installed in the central portion of the receiving space 111, the object to be inspected boron meter 112 is a pressure vessel 110 to be introduced into the receiving space 111 It is preferably installed on the side.

The injection step (S120) is a step of injecting a coolant in which boron having a predetermined concentration is dissolved in the pressure vessel 110 in which the boron meter 112 is set. Here, the manager injects the coolant to be used for inspection into the receiving tank 210, and the injection pump 250 installed in the injection pipe 240 is operated. Coolant accommodated in the receiving tank 210 by the injection pump 250 is injected into the pressure vessel (110).

The temperature control step (S130) is a step of heating the temperature of the coolant accommodated in the pressure vessel 110 to an experimental temperature corresponding to the actual use temperature of the subject boron meter 112, the heating step (S131) and circulation Step S132 is included.

The heating step (S131) is the experiment temperature using the cooling unit 230, the cooling material accommodated in the interior of the receiving tank 210 in communication with the pressure vessel 110 through the injection pipe 240 and the discharge pipe 220 It is a step of heating. When the injection of the coolant into the pressure vessel 110 is completed, the manager operates the temperature control module 233, and the temperature control module 233 generates a heating member 231 so that the coolant temperature in the receiving tank 210 becomes the experimental temperature. Operate it.

The circulating step (S132) operates the injection pump 250 installed in the injection pipe 240 to circulate the coolant accommodated in the receiving tank 210 and the pressure vessel 110, but to the pressure vessel 110. This is a step of circulating the coolant until the temperature of the received coolant reaches the experimental temperature.

Here, the temperature control module 233 supplies the coolant of the receiving tank 210 heated to the experimental temperature to the pressure vessel 110 through the injection pump 250, and from the pressure vessel 110 to the receiving tank 210 In order to heat the incoming coolant to the experimental temperature, the heating member 231 is operated. Here, the temperature control module 233 stops the operation of the heating member 231 when the temperature of the coolant in the pressure vessel 110 reaches the experimental temperature through the temperature meter 232.

The pressure adjusting step (S140) is a step of adjusting the internal pressure of the pressure vessel 110 to an experimental pressure corresponding to the actual working pressure of the subject boron meter 112, the pressing step (S141) and the adjustment completion step ( S142).

The pressing step (S141) blocks the discharge of the coolant from the pressure vessel 110 until the internal pressure of the pressure vessel 110 reaches the experimental pressure, and injects the coolant into the pressure vessel 110. It is a step. Here, the manager operates the pressure control module, and the pressure control module is configured to open the injection pipe 240 so that the coolant can be injected into the pressure vessel 110 to increase the internal pressure of the pressure vessel 110. The on-off valve 320 is operated, and the injection pump 250 is operated. At this time, the pressure control module operates the first opening / closing valve 310 and the drain valve 213 so that the discharge pipe 220 and the drain pipe 212 are closed.

The adjustment completion step (S142) is a step of stopping the injection of the coolant into the pressure vessel 110 when the internal pressure of the pressure vessel 110 reaches the experimental pressure. When the pressure measured by the pressure measuring unit 330 reaches a predetermined experimental pressure, the second opening / closing valve 320 is closed so that the injection pipe 240 is closed so that injection of coolant into the pressure vessel 110 is stopped. It operates, and stops the injection pump 250.

In the data collection step (S150), after the internal pressure of the pressure vessel 110 and the temperature of the coolant are set to the experimental pressure and the experimental temperature, respectively, the boron meter to be inspected according to the neutron emitted from the neutron source 410 ( 112) is a step of collecting the measured data. Here, the data collection unit 420 collects measurement values provided from the inspection target boron meter 112, that is, measurement data, and transmits the collected measurement data to the analysis module 430.

The repeating step (S160) is a step of repeating the injection step (S120), the temperature control step (S130), the pressure control step (S140), and the data collection step (S150) using a plurality of coolants having different boron concentrations. When the data collection step (S150) is completed, the coolant accommodated in the pressure vessel 110 and the receiving tank 210 is discharged, and the injection step (S120), temperature control step (using a coolant having a different boron concentration from the discharged coolant) S130), the pressure control step (S140) and the data collection step (S150) is repeated. At this time, it is preferable to repeat each step about 18 times in the repeating step (S160). In this case, the analysis module 430 matches the measurement data of the boron meter 112 to be inspected provided by the data collection unit 420 with information about the boron concentration of the coolant used when measuring each measurement data. Store it in the database.

Analysis step (S170), after the repetition step (S160), based on the measurement data collected in the data collection step (S150) and information about the boron concentration of the coolant, the accuracy of the boron meter 112 to be inspected As an analysis step, a relational expression calculation step (S171), a result calculation step (S172) and an accuracy calculation step (S173) are included.

The relational calculation step (S171) is based on the measurement data of the boron meter 112 to be inspected collected in the data collection step (S150), and information about the boron concentration of each coolant used when measuring the measurement data. It is a step of calculating a relational expression of boron concentration for the measurement data.

Here, the analysis module 430 is based on the measurement data of the boron meter 112 to be stored in the database and information about the boron concentration of the coolant used to measure each measurement data, that is, the boron meter to be inspected ( Derived from the measured value of 112)-boron concentration conversion formula. As an example, Fig. 5 derives a conversion formula calculated using 18 coolants having different boron concentrations.

The result calculation step (S172) is a step of calculating a result value by substituting any one of the measured data into the relational expression calculated in the relational expression calculation step (S171). The analysis module 430 randomly selects any one of the measurement data of the boron meter 112 stored in the database and substitutes the relational expression calculated to derive a result value.

The accuracy calculation step (S173) compares the result value calculated in the result calculation step (S172) with the information on the boron concentration of the coolant used when measuring the measurement data substituted in the relational expression. ). The analysis module 430 calculates the accuracy by comparing the result value with information about the boron concentration of the coolant used when measuring the measurement data.

On the other hand, in the analysis step (S170), a relational expression of boron concentration for the measurement data may be calculated as part of the measurement data, and the accuracy of the boron meter 112 to be inspected may be calculated as the rest of the measurement data.

At this time, in the relational formula calculating step (S171), the analysis module 430 randomly selects some of the measurement data stored in the database, and part of the measurement data of the selected boron meter 112, and the measurement data It is a step of calculating a relational expression of boron concentration with respect to the measurement data based on information on boron concentration of each of the coolants used in measurement of some of them.

In addition, in the result calculation step (S172), the analysis module 430 calculates a result value by substituting the rest of the measurement data into the relational expression calculated in the relational expression calculation step (S171). Then, in the accuracy calculation step (S173), the analysis module 430 provides information on the result value calculated in the result calculation step (S172) and the concentration of boron in the coolant used when measuring the measurement data substituted in the relational expression. The accuracy of the boron meter 112 to be inspected may be calculated by comparison.

The boron meter test system 100 and the boron meter test method according to the present invention configured as described above include the temperature of the pressure vessel 110 in which the coolant is accommodated by the temperature control unit 200 and the pressure control unit 300, and Since the test can be performed by setting the pressure to the temperature and pressure of the actual use conditions of the boron meter 112, there is an advantage that a more accurate performance test can be performed on the boron meter 112 to be inspected.

Descriptions of the presented embodiments are provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art of the present invention, and the general principles defined herein can be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention should not be limited to the embodiments presented herein, but should be interpreted in the broadest scope consistent with the principles and novel features presented herein.

100: boron meter inspection system
110: pressure vessel
111: accommodation space
112: boron meter
200: temperature control unit
210: accommodation tank
211: interior space
212: drain pipe
213: drain valve
220: discharge pipe
230: heating unit
240: infusion tube
250: injection pump
300: pressure control unit
310: first opening and closing valve
320: second opening and closing valve
330: pressure measuring unit
340: pressure control module
410: neutron sailor
420: data collection unit
430: analysis module

Claims (9)

A pressure container in which a receiving space is formed so that a coolant in which a predetermined concentration of boron is dissolved is accommodated, and a boron meter to be inspected for detecting boron contained in the coolant is installed in the receiving space;
A temperature control unit installed in the pressure vessel and adjusting a temperature of the coolant filled in the pressure vessel to an experimental temperature corresponding to the actual use temperature of the boron meter;
A pressure adjusting unit that adjusts the internal pressure of the pressure vessel to an experimental pressure corresponding to the actual working pressure of the boron meter;
A neutron source installed in the accommodation space to emit neutrons to the coolant;
A data collection unit for collecting measurement data measured by the boron meter according to neutrons emitted from the neutron source;
With an analysis module for analyzing the accuracy of the boron meter to be inspected based on the measurement data collected through the data collection unit and information on a predetermined boron concentration of the coolant.
Boron meter inspection system.
According to claim 1,
The temperature control unit
An accommodation tank in which an internal space in which the coolant is accommodated is provided;
A discharge pipe connected to the pressure vessel and the receiving tank so that the coolant discharged from the pressure vessel can be injected into the interior space;
A heating unit installed in the accommodation tank and heating the coolant accommodated in the interior space to the experimental temperature;
An injection pipe connected to the receiving tank and the pressure container so that the coolant accommodated in the receiving tank is supplied to the pressure container; And
Equipped with an injection pump installed in the injection pipe to pump the coolant accommodated in the receiving tank into the pressure vessel;
Boron meter inspection system.
According to claim 2,
The pressure control unit
When the internal pressure of the pressure vessel is increased, the discharge pipe is closed to block the discharge of coolant from the pressure vessel while the coolant is injected into the pressure vessel by the operation of the injection pump. A first opening / closing valve installed in the discharge pipe to open the discharge pipe when reducing the internal pressure of the container;
A second opening / closing valve installed on the injection pipe to selectively open and close the injection pipe;
A pressure measuring unit installed in the injection pipe or the discharge pipe to measure the pressure of the coolant in the pressure vessel;
Equipped with; a pressure control module for controlling the first and second opening and closing valves and the injection pump so that the internal pressure of the pressure vessel is maintained at the experimental pressure based on the pressure data measured by the pressure measuring unit;
Boron meter inspection system.
According to claim 3,
The pressure measuring unit
A first pressure gauge installed in the injection pipe between the receiving tank and the second opening / closing valve to measure the pressure of the coolant injected into the pressure vessel through the injection pipe; And
It is provided in the discharge pipe between the first opening and closing valve and the receiving tank a second pressure gauge for measuring the pressure of the coolant in the pressure vessel;
Boron meter inspection system.
A setting step of setting a boron meter to be inspected in a pressure vessel in which a neutron source that emits neutrons is installed;
An injection step of injecting a coolant in which boron having a predetermined concentration is dissolved into the pressure vessel in which the boron meter is set;
A temperature control step of heating the temperature of the coolant accommodated in the pressure vessel to an experimental temperature corresponding to the actual use temperature of the boron meter to be inspected;
A pressure adjusting step of adjusting the internal pressure of the pressure vessel to an experimental pressure corresponding to the actual working pressure of the subject boron meter;
A data collection step of collecting measurement data measured by the boron meter to be inspected according to neutrons emitted from the neutron source after the internal pressure of the pressure vessel and the temperature of the coolant are respectively set to the experimental pressure and the experimental temperature;
A repeating step of repeating the injection step, the temperature control step, the pressure control step, and the data collection step using a plurality of coolants having different boron concentrations; And
After the repetition step, an analysis step of analyzing the accuracy of the boron meter to be inspected based on the measurement data collected in the data collection step and information about the boron concentration of the coolant;
How to test the boron meter.
The method of claim 5,
The temperature control step
A heating step of heating the coolant accommodated in the inside of the accommodation tank communicating with the pressure vessel through the injection pipe and the discharge pipe to the experimental temperature using a heating unit;
A circulation step of circulating the coolant contained in the receiving tank and the pressure vessel by operating an injection pump installed in the injection pipe or the discharge pipe, and circulating the coolant until the temperature of the coolant contained in the pressure vessel reaches the experimental temperature Containing;
How to test the boron meter.
The method of claim 6,
The pressure control step
A pressing step of blocking the discharge of the coolant from the pressure vessel until the internal pressure of the pressure vessel reaches the experimental pressure, and injecting the coolant into the pressure vessel;
Including the adjustment step of stopping the injection of the coolant into the pressure vessel when the internal pressure of the pressure vessel reaches the experimental pressure;
How to test the boron meter.
The method of claim 5,
The analysis step
A relational expression for calculating a relational expression of the boron concentration for the measurement data based on the measurement data of the inspection target boron meter collected in the data collection step and the boron concentration of each coolant used when measuring the measurement data Calculation stage;
A result calculation step of substituting any one of the measurement data into the relation equation calculated in the relation expression calculation step to calculate a result value; And
And an accuracy calculation step of calculating the accuracy of the boron meter to be inspected by comparing the result value calculated in the result calculation step with information about the boron concentration of the coolant used when measuring the measurement data substituted in the relational expression. doing,
How to test the boron meter.
The method of claim 5,
The analysis step
A relational expression of boron concentration for the measurement data based on information on the boron concentration of the coolant used in the measurement of some of the measurement data and the measurement data of the boron meter to be collected in the data collection step Calculating a relational expression for calculating;
A result calculation step of substituting the rest of the measurement data into the relation equation calculated in the relation expression calculation step to calculate a result value; And
And an accuracy calculation step of calculating the accuracy of the boron meter to be inspected by comparing the result value calculated in the result calculation step with information about the boron concentration of the coolant used when measuring the measurement data substituted in the relational expression. doing,
How to test the boron meter.

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