KR20120090662A - Multipurpose system for testing industrial instrumentation and method therefor - Google Patents

Abstract

PURPOSE: A multi-purposed field measurement device test system is provided to test durability and function of a field measurement device and to easily compare and analyze soundness of the field measurement device based on a test result. CONSTITUTION: A multi-purposed field measurement device test system comprises a pneumatic pressure generating device(100), a data acquiring device(200), and a computer(300) for test. The pneumatic pressure generating device generates an air pressure signal capable of testing a field measurement device. The data acquiring device comprises a plurality of measuring instruments for test. The plurality of measuring instruments for test applies a power source and a signal to the field measurement device and tests electrical property. The computer for test receives a measurement device selection signal for test from outside. The measurement device selection signal for test accords with test type of each field measurement device. The computer for test receives a test result of the plurality of measuring instruments for test and evaluates performance of the corresponding field measurement device.

Description

Multipurpose system for testing industrial instrumentation and method therefor

The present invention relates to a multi-purpose field measuring device test system, to test the function and durability of the field measuring device, and to the multi-purpose field measuring device test equipment and method for easily comparing and analyzing the health of each measuring device based on the test results It is about.

Field measurement equipment (pressure / flow / water level / differential pressure transmitters, switches, positioners, I / P converters, etc.) is one of the key instruments for measuring, measuring, transmitting and controlling process variables of nuclear power plants and industries. It is related to a test device that diagnoses whether the booster, lock-up valve, etc.) is operating normally to secure safety and control of nuclear power plant by accurately diagnosing the aging and characteristic changes that are in progress in proportion to the increase in the number of years of operation of the power plant.

In general, the instrumentation installed in the field is the most close to the process, such as measuring and transmitting the physical quantity, such as pressure, flow rate and water level of the process, and manipulating the fluid flow in accordance with the control signal, it is very important to maintain the operation reliability of the device.

Therefore, in order to improve the safety and reliability of the entire nuclear power plant, on-site measuring equipment testing and diagnosis that can affect the entire system is essential.

However, it is difficult to prevent and diagnose the occurrence of device failure because it is difficult to predict and deteriorate the performance deterioration due to mechanical aging of the measuring device installed in the field as a maintenance method such as the current measuring device inspection, calibration and normal operation check. to be.

As described above, a device capable of diagnosing a measuring device installed in the field is divided for each device, and thus performance cannot be diagnosed, and a simple inspection method accurately corrects a complicated aging state, electrical failure, and mechanical failure of the measuring device. Due to the difficulty in identifying the cause, it was almost impossible to timely predict and troubleshoot the measuring equipment.

In addition, it takes a lot of time to check the performance of simple measuring equipment, and the level of equipment maintenance depends on the individual's maintenance ability.

In order to solve this problem, an object of the present invention is to provide a pneumatic generator that can test a variety of field measurement equipment, and can be installed at the same time to test a variety of field measurement equipment by integrating and installing a test device that can proceed by selecting a variety of tests An object of the present invention is to provide a multi-purpose field measurement device test apparatus and method thereof.

The present invention relates to a multi-purpose field measurement device test system, comprising: an air pressure generator for generating an air pressure signal capable of testing a field measurement device; A data acquisition device including a plurality of test instruments for testing electrical characteristics by applying power or a signal to a measurement device mounted on the pneumatic generator; A test computer for receiving a test measuring device selection signal corresponding to a test type for each field measuring device mounted on the pneumatic generator from outside and receiving a test result of the test measuring device measuring the test result to evaluate the performance of the measuring device. ; Characterized in that it comprises a.

According to the present invention, various types of field measuring instruments are mounted on a pneumatic generator, and various measuring instruments are tested for each measuring instrument, and the following effects are obtained by analyzing the performance of the field measuring instruments based on the results. Can be.

In addition, by applying a pneumatic signal to the measuring instrument by using the multi-purpose field measuring instrument test device, the scientific performance evaluation of the measuring instrument and early detection of abnormality of the measuring instrument are detected early by analyzing the change of the output value form obtained through the static and dynamic tests. It can work.

From the test results, the linearity, accuracy, sensitivity, drift, repeatability, hysteresis, step / ramp changes of the measuring instrument The soundness and reliability of the measuring instrument can be checked through input / output response characteristics and frequency analysis.

In addition, by using the multi-purpose field measuring device test device, the operation status of the measuring device can be diagnosed, or the scientific performance evaluation and analysis technology of the independent device can be applied to improve the reliability of the measurement and control equipment. There is an effect that can be done.

In addition, there is an effect of saving the budget through maintenance, maintenance and life extension of the measuring instrument through performance diagnosis.

1 is an overall configuration diagram of a multi-purpose field measurement device test apparatus according to an embodiment of the present invention.
Figure 2 is a circuit diagram of a pneumatic pressure generator of the multi-purpose field measurement device test apparatus applied to the present invention.
Figure 3 is a block diagram of a pneumatic pressure generating device of the multi-purpose field measurement device test apparatus applied to the present invention.
Figure 4 is a block diagram briefly showing the overall configuration of the multi-purpose field measurement device test apparatus applied to the present invention.
5 is a circuit diagram of a pressure sensor and a DIP (Digital Indicator Panel) connection of the pneumatic generator of the multi-purpose field measurement apparatus test apparatus applied to the present invention.
Figure 6a, 6b, 6c is an embodiment of a screen for displaying the initial execution of the test computer and pressure sensor settings and instrument specifications applied to the present invention.
7a and 7b is an embodiment of a screen for displaying the data acquisition and diagnostic screen of the test computer applied to the present invention.
8a and 8b is an embodiment of the history management screen and output of the test computer applied to the present invention.

The multi-purpose field measuring device test apparatus of the present invention for solving the above problems, the test air pressure generating device which can be equipped with two or more measuring devices, and by applying power or a signal to the measuring device mounted on the air pressure generating device Selecting a data acquisition device including a plurality of test instruments for testing the characteristics, and the test instrument corresponding to the type of test for each field measurement device set in the air pressure generating device, and the test results of the test instrument measuring the test results It includes a test computer that receives inputs and evaluates the performance of the instrument.

In addition, the multi-purpose field measuring device test method of the present invention comprises the steps of: a) mounting the field measuring device to be tested on the pneumatic generator, selecting a measuring device mounted on the pneumatic generator from the database of the test computer, and b) the step a) C) selecting a test type for the selected measuring instrument and performing a test; and c) a test measuring instrument is selected according to the test type, and a test signal of the testing measuring instrument is input to the measuring instrument mounted on the pneumatic generator. D) receiving test results of the measuring device supplied with the test signal from a test computer through a data acquisition device, and measuring linearity, accuracy, sensitivity, drift, repeatability and hysteresis of the field measuring device. I / O response characteristics for step, ramp change, frequency analysis, overpressure and static pressure effect Comprising the step of automatically evaluates the analysis.

The present invention relates to a multi-purpose field measurement device test system, comprising: an air pressure generator for generating an air pressure signal capable of testing a field measurement device; A data acquisition device including a plurality of test instruments for testing electrical characteristics by applying power or a signal to a measurement device mounted on the pneumatic generator; A test computer for receiving a test measuring device selection signal corresponding to a test type for each field measuring device mounted on the pneumatic generator from outside and receiving a test result of the test measuring device measuring the test result to evaluate the performance of the measuring device. ; Characterized in that it comprises a.

Preferably, the air pressure generating device generates an air pressure signal for testing the field measuring device, and is connected to the test computer 300 to test while controlling the air pressure in the test computer 300.

Also preferably, the air pressure generating device may include a first pressure indicator 181 connected to the compressor 130, a first needle valve 161 connected to the first pressure indicator, and a first needle connected to the first needle valve. Regulator 191, a second pressure indicator 182 connected to the first regulator, a first pressure sensor 171, the second pressure connected to the second pressure indicator 162 is connected via the second valve (162) A second pressure sensor 172 connected to a pressure indicator and connected through a third needle valve 163 and first and second quick connectors respectively connected to the first and second pressure sensors; A booster device 120 connected to the compressor and the first pressure indicator and connected to the nitrogen gas cylinder 191 to amplify the air pressure; A third pressure sensor 173 connected to the booster device; A second regulator 192 connected to the booster device and a pressure controller 110 connected to the second regulator are connected from the vacuum pump 140 through a first 3-way solenoid valve 151, and the pressure Third to sixth Quick Connectors connected to the controller; Third and fourth needle valves 161 and 162 connected to the booster device and the second regulator and connected through a second 3-way solenoid valve 152; And a seventh quick connector connected to the third needle valve 161 and an eighth quick connector connected to the fourth needle valve 162.

Also preferably, the air pressure generating device may include a low pressure output stage 400 having two ports for controlling air pressure of 0 to 200 Psi; A first high pressure output stage 410 having four ports for controlling air pressure of 0 to 400Bar; And a second high pressure output terminal 430 provided with four ports for controlling air pressure of 0 to 100Bar.

More preferably, the low pressure output stage, the operating pressure of the test target measuring device is responsible for the output of less than 200Psi, characterized in that for adjusting the air pressure using a regulator.

More preferably, the second high pressure output stage is responsible for outputting the air pressure up to 400 Bar according to the operating pressure of the measuring device under test, and adjusts the air pressure by using a booster (BOOSTER), 3-Way solenoid It is characterized in that the air pressure is instantaneously controlled using a valve.

More preferably, the third high-pressure output stage is responsible for outputting air pressure of less than 0-100 bar according to the operating pressure of the measuring device under test, and the pressure controller (A) boosts the pressure of the compressor by using a booster. 110 is provided as a source source, the pressure controller is characterized in that the pressure from the negative pressure (vacuum) to 100Bar to control the air pressure automatically and step by step and ramp.

On the other hand, the multi-purpose field measuring device test method includes the steps of a) mounting the field measuring device to be tested on the pneumatic generator, selecting the measuring device mounted on the pneumatic generator from the database of the test computer, and b) in the step a) Selecting a test type for the selected measuring instrument and performing a test; and c) a test measuring instrument is selected according to the test type, and a test signal of the testing measuring instrument sends an input signal to the measuring instrument mounted on the pneumatic generator. And d) receiving test results of the measuring device supplied with the test signal from a test computer through a data acquiring device to obtain linearity, accuracy, sensitivity, drift, repeatability, hysteresis, Input / output response characteristics, frequency analysis, overpressure and static pressure effects for step / ramp changes Characterized in that it comprises the step of automatically evaluated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

And the following will be described a preferred embodiment of the present invention, but the technical idea of the present invention is not limited to this, but can be variously modified and implemented by those skilled in the art.

1 is a block diagram of a multi-purpose field measurement device test apparatus according to a preferred embodiment of the present invention.

Referring to FIG. 1, the multi-purpose field measuring device test apparatus according to an exemplary embodiment of the present invention includes an air pressure generating device 100, a measuring device operating voltage application and data acquisition device 200, and a test computer 300.

The pneumatic generator 100 generates a pneumatic signal for testing the field measurement device, the pneumatic generator 100 is connected to the test computer 300, the test computer 300 is tested while controlling the air pressure .

The pneumatic generator 100 is a quick connector that can be connected to a variety of field measurement equipment has a structure that can be freely attached to the field measurement equipment for testing.

2 is a circuit diagram of the pneumatic pressure generating device 100 constituting the multi-purpose field measurement device test apparatus according to the present invention.

The components constituting the air pressure generator 100 may include a pressure controller 110, a pressure booster 120, a compressor 130, a vacuum pump 140, a 3-WAY solenoid valve 150, and a needle valve 160. ), The pressure sensor 170, the pressure indicator 180, the regulator 190, nitrogen gas cylinder 191, Quick Connector 192 by using a test instrument to be configured to facilitate the function and reliability test, the air pressure The main device is a BOOSTER device 120 for amplifying air pressure, a vacuum pump 140 for negative pressure, and a 3-way solenoid valve 150 for controlling amplified air pressure.

3 is a block diagram of a pneumatic generator 100 of the multi-purpose field measurement device test apparatus applied to the present invention.

Referring to Figure 3 consists of three pneumatic output stages according to the operating pressure of the target measuring instrument, the first low pressure output 400 stage is provided with two ports for controlling the air pressure of 0 ~ 200Psi, the second The high-pressure output 410 stage is provided with four ports for controlling air pressure of 0-400 Bar, and the third high-pressure output 430 stage is provided with four ports for controlling air pressure of 0-100 Bar. have.

Low pressure output (191_1) end portion is responsible for the output of the operating pressure of the test target measuring device less than 200Psi, is a portion for using the low air pressure of the air pressure generating apparatus (100). This part of the device can be used by manually adjusting the air pressure using the regulator (180).

The high pressure output (191_2) end portion is responsible for the pneumatic output up to 400 Bar according to the operating pressure of the measuring instrument under test, the device of this part to control the air pressure by using a booster 120 to the small pressure of the compressor 130 It is designed to provide instantaneous control of high pressure air pressure using a 3-way solenoid valve.

In addition, the high-pressure output (191_3) end portion is responsible for the air pressure output of less than 0 ~ 100Bar according to the operating pressure of the measuring device under test, this device amplifies a small pressure of the compressor 130 using the Booster (120) The pressure is provided as a source source of the pressure controller 110, which is capable of automatically and manually controlling the air pressure with a step and a ramp from the negative pressure (vacuum) to 100 Bar.

The test method of the multi-purpose field measuring device test apparatus is as follows.

The field measuring devices (transmitters, switches, positioners, current-pneumatic transducers, boosters, lock-up valves, etc.) are mounted on the pneumatic generator, and the test measuring instruments corresponding to the test types for each measuring instrument settled in the pneumatic generator are installed. The test is performed by selecting a test type for the selected measuring instrument, performing a test, receiving test results, and evaluating the performance of the measuring instrument on a test computer.

The present invention of the above configuration can perform a batch test on the characteristics of the field measurement equipment, and also from the experimental results linearity, accuracy, sensitivity, drift, repeatability, hysteresis, step / ramp change I / O response characteristics, frequency analysis, and overpressure and static pressure effects on the test results can be automatically analyzed.

In addition, the integrity of the test instrument can be analyzed by changing electrical characteristics such as insulation resistance, resistance, reactance, and capacitance. Diagnosis related to the switch determines the mechanical characteristics through the operation of the switch (operating pressure, return pressure) according to the set pressure, and the integrity of the terminal through the insulation resistance of the terminal and the status of the output signal.

Figure 4 is a block diagram briefly showing the overall configuration of the multi-purpose field measurement device test apparatus applied to the present invention.

FIG. 5 is a circuit diagram illustrating a pressure sensor and a digital indicator panel (DIP) connection of an air pressure generator of a multi-purpose field measuring apparatus test apparatus applied to the present invention. As shown in FIG. 5, the display device for monitoring the pressure of the pneumatic generator and the output terminal of each device are circuits for sending a signal to the data acquisition device through a noise filter. The output signal of the display device is output at 4-20 mA, and the current signal is converted into a voltage signal to obtain a signal.

6A, 6B, and 6C illustrate an exemplary embodiment in which an initial execution screen, a pressure sensor setting, and a test instrument specification of the test computer 300 are displayed.

As shown in FIG. 6A, the operating software of the multi-purpose field measuring device test apparatus includes a pressure measuring controller, a control valve and accessories, a setting display unit, and the like. The pressure measurement controller display section selects various transmitter and switch categories.

I / P converter on the display of control valve and accessories. Select booster, lock-up valve, positioner, regulator and actuator categories. The setting display performs the function to check and set the status of all equipment used in the multi-purpose field measuring device test apparatus.

In the exemplary embodiment of the present invention, the test computer 300 may perform functions such as database management of a measurement instrument specification, test type selection and test progress and result display, test result report and result history management, and tester self-diagnosis. .

The test computer 300 may further include a printer that outputs a test result.

Figure 6b is a window for input and correction of all the sensors according to the operating characteristics before testing the field measurement equipment, the setting method for each sensor is a sensor setting for current (Current), high test sensor settings, test sensor settings, Test 1, 2 Set the sensor and the displacement sensor for the current. When you click the OK button to finish, all the set values are saved and the physical quantity is automatically calculated and displayed by the set values during the test.

In addition, 6c is a selection window of field measuring equipment measuring equipment. It is possible to select equipment, detailed information by measuring equipment, and add / modify / delete measuring equipment to be tested and check basic information of the equipment.

7A and 7B illustrate an embodiment of displaying data acquisition and a diagnosis screen.

Figure 7a is a transmitter computer acquisition screen in the test computer 300 of the multi-purpose field measuring device test apparatus acquires the air pressure data output from the air pressure generating device and the data output from the test measuring device, and the corresponding data in a graph in real time Output It is also configured to provide the ability to experiment with electrical characteristics.

7B is a result display unit for diagnosis using data acquisition data of a pressure / differential pressure transmitter, and is configured to display model information, electrical characteristic information, diagnostic conditions, operation characteristics, internal leakage, actual measurement data, and operation analysis.

8A and 8B illustrate an embodiment of a history management screen of the test computer 300. In the test result history management screen, a list of previously performed test results is listed, and the user is region, equipment type, equipment number, and test date. The search conditions can be specified by searching, and the test results can be output in a report form as shown in FIG. 8B. The report can be retrieved and printed at any time after the test, as well as later through the result history management screen.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: air pressure generator
200: Operation voltage application and data acquisition device
300: test computer

Claims (8)

In the multi-purpose field measuring instrument test system,
Pneumatic generator for generating a pneumatic signal to test the field measurement equipment;
A data acquisition device including a plurality of test instruments for testing electrical characteristics by applying power or a signal to a measurement device mounted on the pneumatic generator;
A test computer for receiving a test measuring device selection signal corresponding to a test type for each field measuring device mounted on the pneumatic generator from outside and receiving a test result of the test measuring device measuring the test result to evaluate the performance of the measuring device. ; Multi-purpose field measurement device test system comprising a. The method of claim 1,
The air pressure generating device,
Generating an air pressure signal for testing the field measuring device, and is connected to the test computer 300, the test computer 300 is a multipurpose field measuring device test system, characterized in that for testing while controlling the air pressure. The method of claim 1,
The air pressure generating device,
A first pressure indicator 181 connected to the compressor 130, a first needle valve 161 connected to the first pressure indicator, a first regulator 191 connected to the first needle valve, the first regulator A second pressure indicator 182 connected to the first pressure sensor 171 connected to the second pressure indicator 162 connected to the second pressure indicator 162 and a third needle valve connected to the second pressure indicator A second pressure sensor 172 connected through 163 and first and second quick connectors respectively connected to the first and second pressure sensors;
A booster device 120 connected to the compressor and the first pressure indicator and connected to the nitrogen gas cylinder 191 to amplify the air pressure;
A third pressure sensor 173 connected to the booster device;
A second regulator 192 connected to the booster device and a pressure controller 110 connected to the second regulator are connected from the vacuum pump 140 through a first 3-way solenoid valve 151, and the pressure Third to sixth Quick Connectors connected to the controller;
Third and fourth needle valves 161 and 162 connected to the booster device and the second regulator and connected through a second 3-way solenoid valve 152;
And a seventh quick connector connected to the third needle valve 161 and an eighth quick connector connected to the fourth needle valve 162. The method of claim 1,
The air pressure generating device,
Low pressure output stage 400 is provided with two ports (Port) for controlling the air pressure of 0 to 200Psi;
A first high pressure output stage 410 having four ports for controlling air pressure of 0 to 400Bar; And
The second high-pressure output stage 430 is provided with four ports (Port) for controlling the air pressure of 0 to 100Bar; multi-purpose field measurement device test system comprising a. The method of claim 4, wherein
The low pressure output stage,
Multi-purpose field measurement device test system, characterized in that the operating pressure of the measuring device under test is less than 200Psi, and regulates the air pressure using a regulator. The method of claim 4, wherein
The second high pressure output stage,
It is responsible for the air pressure output up to 400Bar according to the operating pressure of the measuring instrument under test, and adjusts the air pressure by using the booster (BOOSTER) and instantaneously controls the air pressure by using 3-Way solenoid valve. A versatile field measuring instrument test system. The method of claim 4, wherein
The third high pressure output stage,
It is responsible for the air pressure output of less than 0 ~ 100Bar according to the operating pressure of the measuring device under test, and provides the pressure amplified by the booster (Booster) as a source source of the pressure controller 110, the pressure The controller is a multi-purpose field measurement device test system, characterized in that the pressure from the negative pressure (vacuum) to 100Bar automatically and manually control the air pressure by step and ramp. Multi-purpose field measuring instrument test method,
a) mounting the field measuring instrument to be tested on the pneumatic generator, selecting a measuring instrument mounted on the pneumatic generator from a database of test computers,
b) selecting a test type for the measuring device selected in step a) and performing a test;
c) a test measuring instrument is selected according to the test type, and a test signal of the test measuring instrument controls an input signal to the measuring instrument mounted on the pneumatic generator;
d) The test result of the measuring device supplied with the test signal is inputted from a test computer through a data acquisition device to obtain linearity, accuracy, sensitivity, drift, repeatability, hysteresis, and step / A method for testing a multipurpose field measurement device, comprising the steps of analyzing input / output response characteristics, frequency analysis, overpressure and static pressure effects on a change in a ramp.

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