CN113028131B - Test system and method for main steam quick isolation valve and fast reactor main steam system - Google Patents
Test system and method for main steam quick isolation valve and fast reactor main steam system Download PDFInfo
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- CN113028131B CN113028131B CN202110136662.1A CN202110136662A CN113028131B CN 113028131 B CN113028131 B CN 113028131B CN 202110136662 A CN202110136662 A CN 202110136662A CN 113028131 B CN113028131 B CN 113028131B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/14—Conveying liquids or viscous products by pumping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention discloses a test system of a main steam quick isolation valve, which comprises a local closure test device, wherein the local closure test device is used for controlling each isolation valve on the same loop to perform local closure tests in sequence. Correspondingly, a test method of the main steam quick isolation valve and a fast reactor main steam system are also disclosed. The test system can simplify the periodic test operation of the main steam quick isolation valve of the nuclear power plant, improve the test efficiency and save the labor cost.
Description
Technical Field
The invention belongs to the technical field of equipment detection, and particularly relates to a test system and method of a main steam quick isolation valve and a fast reactor main steam system.
Background
The fast reactor main steam system has two loops, each loop has several steam generators and superheaters, and the outlet of the superheaters is provided with a main steam fast isolation valve. In design, the main steam quick isolation valve is required to be closed within 3 seconds after receiving a quick closing signal of the accident protection system of the steam generator so as to quickly cut off steam flow in any direction, and the function is independently controlled by the electromagnetic valve A and the electromagnetic valve B respectively.
In order to achieve the expected usability of the isolation valve design, the response capability of the system to real signals is maintained, and the existing mode is to manually perform periodic tests on each main steam quick isolation valve of the nuclear power plant through manpower, so that the operation is complex, the test efficiency is low, and the labor cost is high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a test system and method for a main steam quick isolation valve and a fast reactor main steam system, wherein the test system can simplify the periodic test operation of the main steam quick isolation valve of a nuclear power plant, improve the test efficiency and save the labor cost.
In a first aspect, the invention provides a test system for a main steam quick isolation valve, which comprises a local closure test device for controlling each isolation valve on the same loop to perform local closure tests in sequence. The office-off test device comprises a first controller and a plurality of groups of office-off test assemblies. The group of office closing test assemblies corresponds to one isolation valve, and each group of office closing test assemblies is used for office closing test of the corresponding current isolation valve and comprises a valve closing electromagnetic valve, a valve opening electromagnetic valve and a limit switch. The first controller is connected with the valve closing electromagnetic valve and is used for controlling the valve closing electromagnetic valve to be electrified according to a first control instruction. The valve closing electromagnetic valve is used for driving the valve rod of the current isolation valve to act in a charged state so as to enable the current isolation valve to be closed slowly. The limit switch is arranged at a preset position and connected with the first controller, and is used for sending a limit signal to the first controller when the opening position of the current isolation valve reaches the preset position. The first controller is also connected with the valve opening electromagnetic valve and is used for judging that the current local closing test of the isolation valve is successful when receiving the limit signal, and controlling the valve opening electromagnetic valve to be electrified and controlling the valve closing electromagnetic valve to be powered off. And the valve opening electromagnetic valve is used for driving the valve rod of the current isolation valve to act in the electrified state so as to open the current isolation valve to the full-open state. The first controller is internally stored with a local-closing test assembly starting order table which enables each isolation valve to be tested sequentially one by one, and the local-closing test assembly starting order table is used for triggering the next local-closing test assembly to be started in sequence according to the local-closing test assembly starting order table when the local-closing test judgment result of the current isolation valve is obtained and the current isolation valve is fully opened so as to conduct the local-closing test.
Preferably, the first controller has a first timer, and a first preset duration is set in the first timer. The first controller is also used for starting the first timer to start timing when the valve opening electromagnetic valve is controlled to be electrified, and triggering the next office closing test assembly to start when the first preset time length is reached.
Preferably, the first controller further has a second timer, and a second preset duration is set in the second timer. The first controller is used for starting a second timer to start timing when the valve closing electromagnetic valve is controlled to be electrified, and judging that the current closing test of the isolating valve is successful when the limiting signal is received within a second preset time length; and when the second preset time length reaches and the limit signal is not received, judging that the current closing test of the isolation valve fails, wherein the second preset time length is longer than the time length required by slowly closing the isolation valve from the full-open state to the preset position.
Preferably, the test system of the main steam rapid isolation valve further comprises a first load test device for controlling each isolation valve on the same loop to perform the A-column load test in sequence. The first tape test device comprises a second controller and a plurality of groups of A-column tape test assemblies. The group A of the on-load test assemblies corresponds to one isolation valve, and each group A of the on-load test assemblies is used for the on-load test of the corresponding current isolation valve and comprises a first quick-closing solenoid valve, a second quick-closing solenoid valve and a first pressure switch. The second controller is connected with the first quick-closing solenoid valve and used for controlling the first quick-closing solenoid valve to be electrified according to a second control instruction. And the first quick-closing solenoid valve is used for controlling the conduction of the first quick-closing oil way valve in a charged state. The first quick closing oil way valve and the second quick closing oil way valve are positioned in a first quick closing loop, and the first pressure switch is arranged between the first quick closing oil way valve and the second quick closing oil way valve and connected with the second controller and used for detecting the oil pressure of the first quick closing loop and sending detected first oil pressure data to the second controller in real time. The second controller is further configured to determine whether a load test of the first fast solenoid valve of the current isolation valve is successful according to whether the first oil pressure data received in real time meets a first requirement, where the first requirement includes that the first oil pressure data continuously increases from an initial value to a preset threshold. The second controller is also connected with the second quick solenoid valve and is used for judging that the load test of the first quick solenoid valve of the current isolation valve is successful when the first oil pressure data received in real time meets the first requirement, and controlling the first quick solenoid valve to lose electricity. The second controller is provided with a third timer, a third preset time length is arranged in the third timer, and the second controller is used for starting the third timer to start timing when the first quick solenoid valve is controlled to lose power, and controlling the second quick solenoid valve to be electrified when the third preset time length is reached. And the second quick-closing solenoid valve is used for controlling the conduction of the second quick-closing oil way valve in the electrified state. And the second controller is also used for judging whether the load test of the second quick electromagnetic valve of the current isolation valve is successful according to whether the first oil pressure data received in real time meets a second requirement, and the second requirement comprises that the first oil pressure data is continuously reduced from a preset threshold value to an initial value. And the second controller is also used for judging that the load test of the second quick solenoid valve of the current isolating valve is successful when the first oil pressure data received in real time meets the second requirement, and controlling the second quick solenoid valve to lose electricity. And the second controller is internally stored with an A-column on-load test assembly starting order table which enables each isolation valve to be tested sequentially and gradually, and the A-column on-load test assembly starting order table is used for triggering the next A-column on-load test assembly to be started in order to carry out the A-column on-load test according to the A-column on-load test assembly starting order table when the A-column on-load test judgment result of the current isolation valve is obtained.
Preferably, the second controller has a fourth timer, and a fourth preset duration is set in the fourth timer. The second controller is also used for starting a fourth timer to start timing when the second quick electromagnetic valve is controlled to lose electricity, and triggering the next A-column load test assembly to start when a fourth preset duration is reached.
Preferably, the second controller is further configured to determine that the load test of the first fast solenoid valve of the current isolation valve fails when the first oil pressure data received in real time does not meet the first requirement, and simultaneously control the first fast solenoid valve to lose power, and start the fourth timer to start timing. And triggering the next A-column load test assembly to start when the fourth preset time length is reached.
Preferably, the test system of the main steam rapid isolation valve further comprises a second load test device, wherein the second load test device is used for controlling each isolation valve on the same loop to sequentially perform B-column load tests one by one. The second load test device comprises a third controller and a plurality of groups of B-column load test assemblies. The group of B-column load test assemblies correspond to one isolation valve, and each group of B-column load test assemblies are used for the B-column load test of the corresponding current isolation valve and comprise a third quick solenoid valve, a fourth quick solenoid valve and a second pressure switch. The third controller is connected with the third quick electromagnetic valve and is used for controlling the third quick electromagnetic valve to be electrified according to a third control instruction. And the third quick closing solenoid valve is used for controlling the conduction of the third quick closing oil way valve in the electrified state. The third quick closing oil way valve and the fourth quick closing oil way valve are positioned in a second quick closing loop, and the second pressure switch is arranged between the third quick closing oil way valve and the fourth quick closing oil way valve and is connected with the third controller and used for detecting the oil pressure of the second quick closing loop and sending detected second oil pressure data to the third controller in real time. The third controller is further configured to determine whether a load test of a third fast solenoid valve of the current isolation valve is successful according to whether the second oil pressure data received in real time meets a third requirement, where the third requirement includes that the second oil pressure data continuously increases from an initial value to a preset threshold. The third controller is also connected with the fourth quick solenoid valve and is used for judging that the load test of the third quick solenoid valve of the current isolation valve is successful when the second oil pressure data received in real time meets the third requirement, and controlling the third quick solenoid valve to lose electricity. The third controller is provided with a third timer, a third preset time length is arranged in the third timer, and the third controller is used for starting the third timer to start timing when the third quick electromagnetic valve is controlled to lose electricity, and controlling the fourth quick electromagnetic valve to be electrified when the third preset time length is reached. And the fourth quick-closing solenoid valve is used for controlling the conduction of the fourth quick-closing oil way valve in the electrified state. And the third controller is further used for judging whether the load test of the fourth quick electromagnetic valve of the current isolation valve is successful according to whether the second oil pressure data received in real time meets a fourth requirement, and the fourth requirement comprises that the second oil pressure data is continuously reduced from a preset threshold value to an initial value. And the third controller is also used for judging that the load test of the fourth quick solenoid valve of the current isolating valve is successful when the second oil pressure data received in real time meets the fourth requirement, and controlling the fourth quick solenoid valve to lose electricity. And a B-column on-load test assembly starting order table for enabling each isolation valve to be tested sequentially and step by step is stored in the third controller and is used for sequentially triggering the next B-column on-load test assembly to start according to the B-column on-load test assembly starting order table when the B-column on-load test judgment result of the current isolation valve is obtained so as to conduct the B-column on-load test.
Preferably, the third controller is provided with a fourth timer, a fourth preset duration is set in the fourth timer, and the third controller is further configured to start the fourth timer to start timing when the fourth fast-closing solenoid valve is controlled to lose power, and trigger the next a-column load test assembly to start when the fourth preset duration is reached. And the third controller is further used for judging that the load test of the third quick solenoid valve of the current isolation valve fails when the second oil pressure data received in real time does not meet the third requirement, controlling the third quick solenoid valve to lose power at the same time, starting a fourth timer to start timing, and triggering the next B-column load test assembly to start when the fourth preset duration is reached.
In a second aspect, the invention also provides a fast reactor main steam system, comprising a plurality of loops, each loop comprising a steam generator and a superheater, wherein the outlet of the superheater is provided with a main steam quick isolation valve, and the fast reactor main steam system also comprises a test system of the main steam quick isolation valve in the first aspect, which is used for periodically testing each main steam quick isolation valve on the loop.
In a third aspect, the present invention also provides a test method of a main steam rapid isolation valve, applied to the test system of the main steam rapid isolation valve in the first aspect, the method comprising: the method for controlling each isolation valve on the same ring to carry out the office closing test in sequence one by one specifically comprises the following steps: the controller controls the valve closing electromagnetic valve to be electrified according to the first control instruction so as to enable the current isolation valve to be closed slowly; when the opening position of the current isolation valve reaches a preset position, the limit switch sends a limit signal to the controller, the controller judges whether the local closure test of the current isolation valve is successful according to whether the limit signal is received, judges that the local closure test of the current isolation valve is successful when the limit signal is received, simultaneously controls the valve closing electromagnetic valve to be powered off and controls the valve opening electromagnetic valve to be electrified, the valve opening electromagnetic valve drives the valve rod of the current isolation valve to act in the electrified state so as to enable the current isolation valve to be opened to the fully-opened state, and when the local closure test judging result of the current isolation valve is obtained and the current isolation valve is fully-opened, the controller sequentially triggers the next local closure test assembly to be started according to the local closure test assembly starting order table so as to carry out the local closure test.
The invention relates to a test system and a test method for a main steam quick isolation valve and a fast reactor main steam system, wherein a local closure test device is used for controlling each isolation valve on the same loop to carry out local closure tests in sequence, specifically, a controller is used for controlling a valve closing electromagnetic valve and a valve opening electromagnetic valve of each isolation valve to be electrified or deenergized so as to drive each isolation valve rod to act, and verification of the action performance of each isolation valve rod is completed, so that a plurality of main steam quick isolation valves can automatically carry out local closure tests in sequence, the workload of a nuclear power plant operator is reduced, and the test efficiency is improved.
Drawings
Fig. 1: a schematic structural diagram of a test system of a main steam rapid isolation valve according to embodiment 1 of the present invention;
fig. 2: the flow chart of the test method of the main steam rapid isolation valve in the embodiment 3 of the invention is shown.
In the figure: 1-a first fast solenoid valve; 2-a second fast solenoid valve; 3-a third quick solenoid valve; 4-fourth quick solenoid valve; 5-a main steam quick isolation valve; 6-a first quick-closing oil way valve; 7-a second quick-closing oil way valve; 8-a first pressure switch; 9-a third quick closing oil way valve; 10-fourth quick closing oil way valve; 11-a second pressure switch; 12-closing a valve electromagnetic valve; 13-a valve opening electromagnetic valve; 14-an oil pump; 15-valve oil tank.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and examples for better understanding of the technical scheme of the present invention to those skilled in the art.
Example 1:
as shown in fig. 1, the valve of the main steam quick isolation valve 5 is provided with a valve opening electromagnetic valve 13 for realizing a valve opening function, a valve closing electromagnetic valve 12 for realizing a valve slow closing function, two parallel quick closing loops (namely, a row and a row) are respectively provided with two series electromagnetic valves (a first quick electromagnetic valve 1, a second quick electromagnetic valve 2) and a third quick electromagnetic valve 3 and a fourth quick electromagnetic valve 4) on each loop, and the two series electromagnetic valves are used for realizing quick closing of the isolation valve within 3 seconds when a steam pipeline isolation signal is triggered. A first pressure switch 8 is arranged between the first quick-closing oil way valve 6 and the second quick-closing oil way valve 7, and a second pressure switch 11 is arranged between the third quick-closing oil way valve 9 and the fourth quick-closing oil way valve 10 and is respectively used for detecting oil pressure data of corresponding quick-closing circuits. An oil pump 14 is provided in the valve oil tank 15.
The embodiment provides a test system of a main steam quick isolation valve, which comprises a local closure test device, wherein the device is used for controlling each isolation valve on the same loop to perform local closure tests in sequence.
The office relationship test device comprises a first controller and a plurality of groups of office relationship test components. Wherein, a group of office close test components corresponds an isolation valve, and each group of office close test components is used for the office close test of the corresponding current isolation valve, and comprises a valve closing electromagnetic valve 12, a valve opening electromagnetic valve 13 and a limit switch.
The first controller is connected with the valve closing electromagnetic valve 12 and is used for controlling the valve closing electromagnetic valve 12 to be electrified according to a first control instruction; the valve closing electromagnetic valve 12 is used for driving the valve rod of the current isolation valve to act in a charged state so as to enable the current isolation valve to be slowly closed; the limit switch is arranged at a preset position and connected with the first controller, and is used for sending a limit signal to the first controller when the opening position of the current isolation valve reaches the preset position. The first controller is used for judging whether the current closing test of the isolation valve is successful according to whether the limit signal is received or not, and is also connected with the valve opening electromagnetic valve 13, and is used for judging that the current closing test of the isolation valve is successful when the limit signal is received, and controlling the valve opening electromagnetic valve 13 to be electrified while controlling the valve closing electromagnetic valve 12 to be powered off; the valve opening electromagnetic valve 13 is used for driving the valve rod of the current isolation valve to act in a charged state so as to open the current isolation valve to a full-open state. The first controller is internally stored with a local-closing test assembly starting order table which enables each isolation valve to be tested sequentially one by one, and the local-closing test assembly starting order table is used for triggering the next local-closing test assembly to be started in sequence according to the local-closing test assembly starting order table when the local-closing test judgment result of the current isolation valve is obtained and the current isolation valve is fully opened so as to conduct the local-closing test.
Optionally, the first controller is provided with a first timer, and a first preset duration is set in the first timer. The first controller is further configured to start the first timer to start timing when the valve-opening electromagnetic valve 13 is controlled to be electrified, and trigger the next office-closing test assembly to start when a first preset duration is reached.
Optionally, the first controller further has a second timer, and a second preset duration is set in the second timer. The first controller is further configured to start a second timer to start timing when the valve closing electromagnetic valve 12 is controlled to be electrified, and determine that the current closing test of the isolation valve is successful when the limit signal is received within a second preset time period; and when the second preset time length reaches and the limit signal is not received, judging that the current closing test of the isolation valve fails, wherein the second preset time length is longer than the time length required by slowly closing the isolation valve from the full-open state to the preset position.
In this embodiment, the first controller is configured to control the valve closing electromagnetic valve 12 to be electrified according to the first control instruction, so as to drive the valve rod of the current isolation valve to act, and execute the slow closing function of the isolation valve. The first control command may be a office switch test control command, or an office switch test button is set, and the office switch test control command is triggered to be generated by pressing the office switch test button. When the isolating valve performs a slow closing function from a full-open state to a preset position (for example, a 90% opening position of the isolating valve), a limit switch arranged at the 90% opening position is triggered to send a limit signal to the first controller.
The first controller is also used for judging whether the current closing test of the isolation valve is successful or not according to whether the limit signal is received or not. For example, when receiving the limit signal, the first controller is configured to determine that the current closing test of the isolation valve is successful, and simultaneously control the valve closing electromagnetic valve 12 to be powered off and the valve opening electromagnetic valve 13 to be powered on. When the valve closing electromagnetic valve 12 is powered off, the valve rod stops acting, and the isolating valve stops slowly closing; the valve opening solenoid valve 13 is electrified to drive the valve rod to act, so that the isolation valve is opened to a full-open state. For example, the first controller is configured to start the second timer to start counting when the valve closing electromagnetic valve 12 is controlled to be electrified, and determine that the current closing test of the isolation valve fails when a second preset time period (the second preset time period is longer than a time period required for the isolation valve to be slowly closed from the fully opened state to the preset position) arrives and a limit signal is not received. The absence of receiving a limit signal may be the following: firstly, if the limit switch fails, the limit switch is indicated to have a fault; and secondly, if the opening position of the current isolation valve does not reach the preset position, the valve closing performance of the valve rod is indicated to have faults.
The first controller is further configured to start the first timer to start counting when the valve opening solenoid valve 13 is controlled to be electrified, and trigger the next office closing test assembly to start when a first preset time period (for example, 30 seconds) is reached. The purpose of setting the first preset time length is to ensure that the current isolation valve performs the office closing test of the next valve after the office closing test is completed, and ensure the accuracy of the test. And verifying whether the valve rod of each isolation valve can work normally or not through the office closing test of each isolation valve. It should be noted that, the first controller stores a start order table of the office-related test assembly inside, and is used for sequentially triggering the start of the next office-related test assembly according to the start order table of the office-related test assembly to perform the office-related test when the office-related test judgment result (the office-related test is successful or the office-related test is failed) of the current isolation valve is obtained and the current isolation valve is fully opened. In addition, the test system of the main steam quick isolation valve further comprises a display, wherein the display is connected with the first controller and used for displaying the judging result of the office-close test (the office-close test is successful or the office-close test is failed) of each isolation valve, so that an operator can conveniently carry out detection maintenance on the isolation valve which is failed in the office-close test.
Optionally, the test system of the main steam rapid isolation valve further comprises a first load test device, wherein the first load test device is used for controlling each isolation valve on the same loop to perform the A-column load test in sequence.
The first load test device comprises a second controller and a plurality of groups of A-column load test assemblies, wherein one group of A-column load test assemblies corresponds to one isolation valve, and each group of A-column load test assemblies is used for A-column load test of the corresponding current isolation valve and comprises a first quick electromagnetic valve 1, a second quick electromagnetic valve 2 and a first pressure switch 8.
The second controller is connected with the first quick-closing solenoid valve 1 and is used for controlling the first quick-closing solenoid valve 1 to be electrified according to a second control instruction; the first quick closing solenoid valve 1 is used for controlling the conduction of the first quick closing oil way valve 6 in a charged state, and the first quick closing oil way valve 6 and the second quick closing oil way valve 7 are positioned in a first quick closing loop; the first pressure switch 8 is arranged between the first quick closing oil way valve 6 and the second quick closing oil way valve 7, is connected with the second controller, and is used for detecting the oil pressure of the first quick closing loop and sending the detected first oil pressure data to the second controller in real time. The second controller is further used for judging whether the load test of the first quick solenoid valve 1 of the current isolation valve is successful according to whether the first oil pressure data received in real time meets the first requirement, the first requirement comprises that the first oil pressure data continuously increases to a preset threshold value from an initial value, the second controller is further connected with the second quick solenoid valve 2 and used for judging that the load test of the first quick solenoid valve 1 of the current isolation valve is successful when the first oil pressure data received in real time meets the first requirement, and meanwhile controlling the first quick solenoid valve 1 to lose power. The second controller is provided with a third timer, a third preset time length is arranged in the third timer, and the second controller is used for starting the third timer to start timing when the first quick electromagnetic valve 1 is controlled to lose power, and controlling the second quick electromagnetic valve 2 to be electrified when the third preset time length is reached; the second quick-closing solenoid valve 2 is used for controlling the conduction of the second quick-closing oil way valve 7 in a charged state.
The second controller is further configured to determine whether the load test of the second fast solenoid valve 2 of the current isolation valve is successful according to whether the first oil pressure data received in real time meets a second requirement, where the second requirement includes that the first oil pressure data continuously decreases from a preset threshold value to an initial value.
And the second controller is also used for judging that the load test of the second quick solenoid valve 2 of the current isolating valve is successful when the first oil pressure data received in real time meets the second requirement, and controlling the second quick solenoid valve 2 to lose electricity.
Optionally, the second controller is provided with a fourth timer, a fourth preset duration is set in the fourth timer, and the second controller is further configured to start the fourth timer to start timing when the second fast electromagnetic valve 2 is controlled to be powered off, and trigger the next a-column load test assembly to start when the fourth preset duration is reached.
Optionally, the second controller is further configured to determine that the load test of the first fast solenoid valve 1 of the current isolation valve fails when the first oil pressure data received in real time does not meet the first requirement, simultaneously control the first fast solenoid valve 1 to lose power, start the fourth timer to start timing, and trigger the next a-column load test assembly to start when the fourth preset duration arrives.
Specifically, in this embodiment, the second controller is configured to control the first quick electromagnetic valve 1 to be electrified according to a second control instruction, where the second control instruction may be an a-column load test control instruction, or set an a-column load test button, and trigger the a-column load test instruction by pressing the a-column load test button. The first quick closing solenoid valve 1 is used for controlling the first quick closing oil way valve 6 to be conducted in a charged state, when the first quick closing oil way valve 6 is conducted, the oil pressure of the first quick closing loop can be changed, and the first pressure switch 8 is used for detecting the oil pressure of the first quick closing loop and sending detected first oil pressure data to the second controller in real time. The second controller is used for judging whether the load test of the first quick solenoid valve 1 of the current isolation valve is successful according to whether the first oil pressure data received in real time meets the first requirement. For example, when the first oil pressure data received in real time meets the first requirement, the second controller is used for judging that the load test of the first quick-closing solenoid valve 1 of the isolation valve is successful, controlling the first quick-closing solenoid valve 1 to lose electricity, controlling the first quick-closing solenoid valve 6 to be disconnected in the power-losing state by the first quick-closing solenoid valve 1, and when a third preset time period (for example, 20 seconds) is reached, performing the load test of the second quick-closing solenoid valve 2, that is, the second controller is used for controlling the second quick-closing solenoid valve 2 to be electrified, the second quick-closing solenoid valve 2 is used for controlling the second quick-closing solenoid valve 7 to be conducted in the electrified state, when the second quick-closing solenoid valve 7 is conducted, the oil pressure of the first quick-closing circuit is changed, and the second controller is used for judging whether the load test of the second quick-closing solenoid valve 2 of the current isolation valve is successful according to whether the first oil pressure data received in real time meets the second requirement. When the first oil pressure data of the first quick closing loop meets the second requirement, the second controller is used for judging that the load test of the second quick closing solenoid valve 2 is successful; when the first oil pressure data of the first quick closing circuit does not meet the second requirement, the second controller is used for judging that the load test of the second quick closing solenoid valve 2 fails. And when judging that the load test of the second quick-closing solenoid valve 2 is successful or failed, the second controller is used for controlling the second quick-closing solenoid valve 2 to lose electricity, starting a fourth timer to start timing, and controlling the second quick-closing oil circuit valve 7 to be disconnected in the state of losing electricity by the second quick-closing solenoid valve 2. The third preset time period is set here to ensure that the load test of the second quick solenoid valve 2 is performed when the first quick solenoid valve 1 is completely powered off, so as to prevent the quick closing of the isolation valve caused by the simultaneous electrification of the first quick solenoid valve 1 and the second quick solenoid valve 2. When the first oil pressure data received in real time does not meet the first requirement, the second controller is used for judging that the load test of the first quick-closing oil way valve 6 of the isolation valve fails, controlling the first quick-closing electromagnetic valve 1 to lose power, and starting the fourth timer to start timing. When a fourth preset time period (for example, 30 seconds) is reached, triggering the next A-column load test assembly to start, namely, performing the A-column load test of the next isolation valve.
It should be noted that, the second controller stores an a-column on-load test assembly starting order table inside, and is used for triggering the next a-column on-load test assembly to start in order to perform an a-column on-load test according to the a-column on-load test assembly starting order table when the a-column on-load test judgment result of the current isolation valve is obtained.
In addition, the display is connected with the second controller, and the display is used for displaying the A-column load test judgment result of each isolation valve, so that an operator can conveniently carry out detection maintenance on the isolation valve with failed A-column load test.
Because the A-column electromagnetic valve and the B-column electromagnetic valve are of redundant design, the A-column electromagnetic valve and the B-column electromagnetic valve act simultaneously when the isolating valve is controlled to be closed quickly, so that the implementation of the closing quickly function of the isolating valve is not affected when a fault occurs in a certain state. The apparatus for controlling the B column load test is similar in structure to the apparatus for controlling the a column load test.
Optionally, the test system of the main steam quick isolation valve further comprises a second load test device, wherein the second load test device is used for controlling each isolation valve on the same loop to sequentially perform B-column load tests one by one, the second load test device comprises a third controller and a plurality of groups of B-column load test components, one group of B-column load test components corresponds to one isolation valve, and each group of B-column load test components is used for B-column load tests of the corresponding current isolation valve and comprises a third quick electromagnetic valve 3, a fourth quick electromagnetic valve 4 and a second pressure switch 11.
The third controller is connected with the third quick-closing solenoid valve 3, and is used for controlling the third quick-closing solenoid valve 3 to be electrified according to a third control instruction, the third quick-closing solenoid valve 3 is used for controlling the conduction of the third quick-closing solenoid valve 9 in an electrified state, the third quick-closing solenoid valve 9 and the fourth quick-closing solenoid valve 10 are positioned in a second quick-closing loop, the second pressure switch 11 is arranged between the third quick-closing solenoid valve 9 and the fourth quick-closing solenoid valve 10, and is connected with the third controller, and is used for detecting the oil pressure of the second quick-closing loop, and sending detected second oil pressure data to the third controller in real time, the third controller is also used for judging whether the electrified test of the third quick-closing solenoid valve 3 of the current isolation valve is successful according to whether the second oil pressure data received in real time meets the third requirement, the third requirement comprises that the second oil pressure data is continuously increased to a preset threshold value, the third controller is also connected with the fourth quick-closing solenoid valve 4, and is used for judging whether the third quick-closing solenoid valve 3 of the current isolation valve is electrified, and the third controller is in real-time, and the third controller is used for judging whether the electrified test of the third quick-closing solenoid valve 3 is successful according to the third requirement is met when the third electromagnetic valve is started, the third quick-closing solenoid valve is in the third quick-closing solenoid valve 4, the third controller is electrified, the third requirement is continuously, and the third requirement is continuously increased from the initial value, and the second oil pressure data is in the preset, when the third quick-closing valve is in the third quick-closing solenoid valve is in the switch is in the electrified, and the switch is in the state, and the switch is in the switch, and the third quick-closing valve is. The fourth requirement comprises that the second oil pressure data is continuously reduced to an initial value from a preset threshold value, the third controller is further used for judging that the load test of the fourth quick solenoid valve 4 of the current isolation valve is successful when the second oil pressure data received in real time meets the fourth requirement, meanwhile, the fourth quick solenoid valve 4 is controlled to lose electricity, a B-column load test assembly starting order list which enables each isolation valve to test sequentially and step by step is stored in the third controller, and the third controller is used for triggering the next B-column load test assembly to start according to the B-column load test assembly starting order list when the B-column load test judgment result of the current isolation valve is obtained.
Optionally, the third controller is provided with a fourth timer, a fourth preset duration is set in the fourth timer, and the third controller is further configured to start the fourth timer to start timing when the fourth fast electromagnetic valve 4 is controlled to be powered off, and trigger the next a-column load test assembly to start when the fourth preset duration arrives; and the third controller is further used for judging that the load test of the third quick solenoid valve 3 of the current isolation valve fails when the second oil pressure data received in real time does not meet the third requirement, controlling the third quick solenoid valve 3 to lose power at the same time, starting a fourth timer to start timing, and triggering the next B-column load test assembly to start when the fourth preset time length is reached.
According to the test system of the main steam quick isolation valve, the first controller, the second controller and the third controller can be arranged in the steam generator accident protection system, so that a plurality of steam generators of each loop can be subjected to periodic tests one by one in sequence, and the problems of low operation efficiency and high test cost caused by the fact that a nuclear power plant needs to manually perform periodic tests are solved. The first controller, the second controller and the third controller may be part of the same controller.
Example 2:
the embodiment provides a fast reactor main steam system, which comprises a plurality of loops, wherein each loop comprises a steam generator and a superheater, a main steam quick isolation valve is arranged at an outlet of the superheater, and the fast reactor main steam system further comprises the test system of the main steam quick isolation valve in embodiment 1 and is used for carrying out periodic tests on each main steam quick isolation valve on the loops.
Example 3:
as shown in fig. 2, the present embodiment provides a test method of a main steam rapid isolation valve, which is applied to the test system of the main steam rapid isolation valve described in embodiment 1, and the method includes:
the first controller controls the valve closing electromagnetic valve 12 to be electrified according to a first control instruction so as to enable the current isolation valve to be slowly closed, when the opening position of the current isolation valve reaches a preset position, the limit switch sends a limit signal to the first controller, the first controller judges whether the local closing test of the current isolation valve is successful according to whether the limit signal is received, judges that the local closing test of the current isolation valve is successful when the limit signal is received, simultaneously controls the valve closing electromagnetic valve 12 to be powered off and controls the valve opening electromagnetic valve 13 to be electrified, the valve opening electromagnetic valve 13 drives the valve rod of the current isolation valve to act in an electrified state so as to enable the current isolation valve to be opened to a full-open state, and when the current isolation valve is fully opened, the first controller sequentially triggers the starting of the next local closing test assembly according to a local closing test assembly starting order table so as to conduct the local closing test. Meanwhile, the judging result of the closing test of each isolation valve is displayed.
Optionally, the first controller starts the first timer to start timing when the valve opening electromagnetic valve is controlled to be electrified, and triggers the next office closing test assembly to start when the first preset time period is reached. The first controller starts a second timer to start timing when the valve closing electromagnetic valve 12 is controlled to be electrified, and judges that the current local closing test of the isolation valve is successful when a limit signal is received within a second preset time period; and when the second preset time length reaches and the limit signal is not received, judging that the current closing test of the isolation valve fails, wherein the second preset time length is longer than the time length required by slowly closing the isolation valve from the full-open state to the preset position.
the second controller controls the first quick closing solenoid valve 1 to be electrified according to a second control instruction so as to conduct the first quick closing oil way valve 6, the first quick closing oil way valve 6 and the second quick closing oil way valve 7 are positioned in a first quick closing loop, the first pressure switch 8 detects the oil pressure of the first quick closing loop, and detected first oil pressure data are sent to the second controller in real time. The second controller judges whether the load test of the first quick solenoid valve 1 of the current isolation valve is successful according to whether the first oil pressure data received in real time meets a first requirement, wherein the first requirement comprises that the first oil pressure data is continuously increased from an initial value to a preset threshold value. And when the first oil pressure data received in real time meets the first requirement, the second controller judges that the load test of the first quick-closing solenoid valve 1 of the current isolating valve is successful, simultaneously controls the first quick-closing solenoid valve 1 to lose electricity, starts a third timer to start timing, and controls the second quick-closing solenoid valve 2 to be electrified when a third preset time length (such as 20 seconds) is reached, so that the second quick-closing oil circuit valve 7 is conducted. The second controller judges whether the load test of the second quick solenoid valve 2 of the current isolation valve is successful according to whether the first oil pressure data received in real time meets a second requirement, wherein the second requirement comprises that the first oil pressure data is continuously reduced from a preset threshold value to an initial value. And the second controller judges that the load test of the second quick solenoid valve 2 of the current isolation valve is successful when the first oil pressure data received in real time meets the second requirement, and judges that the load test of the second quick solenoid valve 2 of the current isolation valve fails when the first oil pressure data received in real time does not meet the second requirement, and simultaneously controls the second quick solenoid valve 2 to lose power. And when the second controller obtains the A-column load test judgment result of the current isolation valve, starting a fourth timer to start timing, and when a fourth preset time length (such as 30 seconds) arrives, sequentially triggering the next A-column load test assembly to start according to the A-column load test assembly starting order table so as to perform the A-column load test. Meanwhile, the A column load test judgment result of each isolation valve is displayed.
the third controller controls the third quick closing solenoid valve 3 to be electrified according to a third control instruction so as to conduct the third quick closing oil way valve 9, the third quick closing oil way valve 9 and the fourth quick closing oil way valve 10 are positioned in a second quick closing loop, the second pressure switch 11 detects the oil pressure of the second quick closing loop, and detected second oil pressure data are sent to the third controller in real time. The third controller judges whether the load test of the third quick solenoid valve 3 of the current isolation valve is successful according to whether the second oil pressure data received in real time meets a third requirement, wherein the third requirement comprises that the second oil pressure data continuously increases from an initial value to a preset threshold value. And when the second oil pressure data received in real time meets the third requirement, the third controller judges that the load test of the third quick-closing solenoid valve 3 of the current isolating valve is successful, meanwhile, controls the third quick-closing solenoid valve 3 to lose electricity and starts a third timer to start timing, and when a third preset time period (such as 20 seconds) is reached, controls the fourth quick-closing solenoid valve 4 to be electrified so as to conduct the fourth quick-closing oil circuit valve 10. The third controller judges whether the load test of the fourth quick solenoid valve 4 of the current isolation valve is successful according to whether the second oil pressure data received in real time meets a fourth requirement, and the fourth requirement comprises that the second oil pressure data is continuously reduced from a preset threshold value to an initial value. And the third controller judges that the load test of the fourth quick solenoid valve 4 of the current isolation valve is successful when the second oil pressure data received in real time meets the fourth requirement, and judges that the load test of the fourth quick solenoid valve 4 of the current isolation valve fails when the second oil pressure data received in real time does not meet the fourth requirement, and meanwhile controls the fourth quick solenoid valve 4 to lose power. And when the third controller obtains the B-column load test judgment result of the current isolation valve, starting a fourth timer to start timing, and when a fourth preset time length (such as 30 seconds) arrives, sequentially triggering the next B-column load test assembly to start according to the B-column load test assembly starting order table so as to perform the B-column load test. And meanwhile, displaying the B-column load test judgment result of each isolation valve.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.
Claims (11)
1. A test system of a main steam quick isolation valve is characterized by comprising a local closure test device for controlling each isolation valve on the same loop to perform local closure test in sequence,
the office-related test device comprises a first controller and a plurality of groups of office-related test components,
one group of office closing test components corresponds to one isolation valve, each group of office closing test components is used for office closing test of the corresponding current isolation valve and comprises a valve closing electromagnetic valve, a valve opening electromagnetic valve and a limit switch,
the first controller is connected with the valve closing electromagnetic valve and is used for controlling the valve closing electromagnetic valve to be electrified according to a first control instruction,
the valve closing electromagnetic valve is used for driving the valve rod of the current isolation valve to act in a charged state so as to enable the current isolation valve to be slowly closed,
the limit switch is arranged at a preset position and connected with the first controller, and is used for sending a limit signal to the first controller when the opening position of the current isolation valve reaches the preset position,
The first controller is also connected with the valve opening electromagnetic valve and is used for judging that the current local closing test of the isolating valve is successful when receiving the limit signal, and simultaneously controlling the valve opening electromagnetic valve to be powered off and the valve opening electromagnetic valve to be powered on,
a valve opening electromagnetic valve for driving the valve rod of the current isolation valve to act in a charged state so as to open the current isolation valve to a full-open state,
the first controller is internally stored with a local-closing test assembly starting order table which enables each isolation valve to be tested sequentially one by one, and the local-closing test assembly starting order table is used for triggering the next local-closing test assembly to be started in sequence according to the local-closing test assembly starting order table when the local-closing test judgment result of the current isolation valve is obtained and the current isolation valve is fully opened so as to conduct the local-closing test.
2. The test system of a main steam quick isolation valve according to claim 1, wherein the first controller has a first timer, a first preset time period is set in the first timer,
the first controller is also used for starting the first timer to start timing when the valve opening electromagnetic valve is controlled to be electrified, and triggering the next office closing test assembly to start when the first preset time length is reached.
3. The test system of the main steam quick isolation valve according to claim 2, wherein the first controller further has a second timer, a second preset time length is set in the second timer,
The first controller is used for starting a second timer to start timing when the valve closing electromagnetic valve is controlled to be electrified, and judging that the current closing test of the isolating valve is successful when the limiting signal is received within a second preset time length; and when the second preset time length reaches and the limit signal is not received, judging that the current closing test of the isolation valve fails, wherein the second preset time length is longer than the time length required by slowly closing the isolation valve from the full-open state to the preset position.
4. The test system of the main steam quick isolation valve according to claim 3, further comprising a first load test device for controlling each isolation valve on the same loop to perform a column A load test in sequence,
the first tape test device comprises a second controller and a plurality of groups of A-column tape test assemblies,
a group of A-column load test assemblies corresponds to one isolation valve, each group of A-column load test assemblies is used for the A-column load test of the corresponding current isolation valve and comprises a first quick-closing solenoid valve, a second quick-closing solenoid valve and a first pressure switch,
the second controller is connected with the first quick-closing solenoid valve and is used for controlling the first quick-closing solenoid valve to be electrified according to a second control instruction,
the first quick-closing solenoid valve is used for controlling the conduction of the first quick-closing oil way valve in a charged state,
The first quick closing oil way valve and the second quick closing oil way valve are positioned in the first quick closing loop, the first pressure switch is arranged between the first quick closing oil way valve and the second quick closing oil way valve and connected with the second controller, and is used for detecting the oil pressure of the first quick closing loop and sending the detected first oil pressure data to the second controller in real time,
the second controller is further configured to determine whether a load test of the first fast solenoid valve of the current isolation valve is successful based on whether the first oil pressure data received in real time meets a first requirement, the first requirement including a continuous increase of the first oil pressure data from an initial value to a preset threshold,
the second controller is also connected with the second quick-closing solenoid valve and is used for judging that the load test of the first quick-closing solenoid valve of the current isolating valve is successful when the first oil pressure data received in real time meets the first requirement, simultaneously controlling the first quick-closing solenoid valve to lose electricity,
the second controller is provided with a third timer, a third preset time length is arranged in the third timer, the second controller is used for starting the third timer to start timing when the first quick electromagnetic valve is controlled to lose electricity, and controlling the second quick electromagnetic valve to be electrified when the third preset time length is reached,
a second quick-closing solenoid valve for controlling the conduction of the second quick-closing oil way valve in the electrified state,
The second controller is further used for judging whether the load test of the second quick electromagnetic valve of the current isolating valve is successful according to whether the first oil pressure data received in real time meets a second requirement, the second requirement comprises that the first oil pressure data continuously decreases from a preset threshold value to an initial value,
the second controller is also used for judging that the load test of the second quick electromagnetic valve of the current isolating valve is successful when the first oil pressure data received in real time meets the second requirement, and simultaneously controlling the second quick electromagnetic valve to lose electricity,
and the second controller is internally stored with an A-column on-load test assembly starting order table which enables each isolation valve to be tested sequentially and gradually, and the A-column on-load test assembly starting order table is used for triggering the next A-column on-load test assembly to be started in order to carry out the A-column on-load test according to the A-column on-load test assembly starting order table when the A-column on-load test judgment result of the current isolation valve is obtained.
5. The test system of the main steam quick isolation valve according to claim 4, wherein the second controller has a fourth timer, a fourth preset time period is set in the fourth timer,
the second controller is also used for starting a fourth timer to start timing when the second quick electromagnetic valve is controlled to lose electricity, and triggering the next A-column load test assembly to start when a fourth preset duration is reached.
6. The system of claim 5, wherein the second controller is further configured to determine that the load test of the first fast solenoid valve of the current isolation valve fails when the first oil pressure data received in real time does not meet the first requirement, simultaneously control the first fast solenoid valve to lose power, and start the fourth timer to start timing,
and triggering the next A-column load test assembly to start when the fourth preset time length is reached.
7. The test system of the main steam quick isolation valve according to claim 6, further comprising a second load test device for controlling each isolation valve on the same loop to perform B-column load tests in sequence,
the second load test device comprises a third controller and a plurality of groups of B-column load test assemblies,
a group of B-column load test assemblies corresponds to one isolation valve, each group of B-column load test assemblies is used for the B-column load test of the corresponding current isolation valve and comprises a third quick-closing solenoid valve, a fourth quick-closing solenoid valve and a second pressure switch,
the third controller is connected with the third quick-closing solenoid valve and is used for controlling the third quick-closing solenoid valve to be electrified according to a third control instruction,
a third quick-closing solenoid valve for controlling the conduction of the third quick-closing oil way valve in a charged state,
The third quick closing oil way valve and the fourth quick closing oil way valve are positioned in the second quick closing loop, the second pressure switch is arranged between the third quick closing oil way valve and the fourth quick closing oil way valve and connected with the third controller for detecting the oil pressure of the second quick closing loop and sending the detected second oil pressure data to the third controller in real time,
the third controller is further configured to determine whether a load test of a third fast solenoid valve of the current isolation valve is successful based on whether the second oil pressure data received in real time satisfies a third requirement, where the third requirement includes a continuous increase of the second oil pressure data from an initial value to a preset threshold,
the third controller is also connected with the fourth quick solenoid valve and is used for judging that the load test of the third quick solenoid valve of the current isolation valve is successful when the second oil pressure data received in real time meets the third requirement, and simultaneously controlling the third quick solenoid valve to lose electricity,
the third controller is provided with a third timer, a third preset time length is arranged in the third timer, the third controller is used for starting the third timer to start timing when the third quick electromagnetic valve is controlled to lose electricity, and controlling the fourth quick electromagnetic valve to be electrified when the third preset time length is reached,
a fourth quick-closing solenoid valve for controlling the conduction of the fourth quick-closing oil way valve in the electrified state,
The third controller is further used for judging whether the load test of the fourth fast electromagnetic valve of the current isolation valve is successful according to whether the second oil pressure data received in real time meets a fourth requirement, the fourth requirement comprises that the second oil pressure data continuously decreases from a preset threshold value to an initial value,
the third controller is also used for judging that the load test of the fourth quick electromagnetic valve of the current isolating valve is successful when the second oil pressure data received in real time meets the fourth requirement, and simultaneously controlling the fourth quick electromagnetic valve to lose electricity,
and a B-column on-load test assembly starting order table for enabling each isolation valve to be tested sequentially and step by step is stored in the third controller and is used for sequentially triggering the next B-column on-load test assembly to start according to the B-column on-load test assembly starting order table when the B-column on-load test judgment result of the current isolation valve is obtained so as to conduct the B-column on-load test.
8. The test system of the main steam quick isolation valve according to claim 7, wherein the third controller is provided with a fourth timer, a fourth preset time length is arranged in the fourth timer, the third controller is further used for starting the fourth timer to start timing when the fourth quick electromagnetic valve is controlled to lose electricity, and triggering the next B-column load test assembly to start when the fourth preset time length is reached,
And the third controller is further used for judging that the load test of the third quick solenoid valve of the current isolation valve fails when the second oil pressure data received in real time does not meet the third requirement, controlling the third quick solenoid valve to lose power at the same time, starting a fourth timer to start timing, and triggering the next B-column load test assembly to start when the fourth preset duration is reached.
9. A fast reactor main steam system comprising a plurality of loops, each loop comprising a steam generator and a superheater, the outlet of the superheater being provided with a main steam quick isolation valve, characterized in that the fast reactor main steam system further comprises a test system for the main steam quick isolation valve according to any one of claims 1-8 for periodic testing of the respective main steam quick isolation valve on the loop.
10. A test method of a main steam quick isolation valve, applied to the test system of the main steam quick isolation valve as set forth in claim 8, comprising: the method for controlling each isolation valve on the same ring to carry out the office closing test in sequence one by one specifically comprises the following steps:
the first controller controls the valve closing electromagnetic valve to be electrified according to a first control instruction so as to enable the current isolation valve to be closed slowly;
when the opening position of the current isolating valve reaches a preset position, the limit switch sends a limit signal to the first controller,
The first controller judges whether the current closing test of the isolating valve is successful according to whether the limiting signal is received, judges that the current closing test of the isolating valve is successful when the limiting signal is received, simultaneously controls the valve closing electromagnetic valve to be powered off and controls the valve opening electromagnetic valve to be powered on,
the valve opening electromagnetic valve drives the valve rod of the current isolation valve to act in a charged state so as to enable the current isolation valve to be opened to a full-open state,
and the first controller sequentially triggers the next closing test assembly to start according to the closing test assembly starting order table to perform the closing test when the current isolation valve is fully opened and the current isolation valve is obtained by the judging result of the closing test of the current isolation valve.
11. The method of testing a main steam quick isolation valve according to claim 10, further comprising:
controlling each isolation valve on the same ring to sequentially carry out column A load test one by one;
each isolation valve on the same loop is controlled to carry out B-column load test in sequence,
wherein, each isolation valve on the same control ring carries out A row load test in sequence, specifically includes:
the second controller controls the first quick-closing solenoid valve to be electrified according to a second control instruction so as to conduct the first quick-closing oil way valve;
The first pressure switch detects the oil pressure of the first quick closing loop and sends the detected first oil pressure data to the second controller in real time;
the second controller judges whether the load test of the first quick solenoid valve of the current isolation valve is successful according to whether the first oil pressure data received in real time meets a first requirement or not, wherein the first requirement comprises that the first oil pressure data is continuously increased to a preset threshold value from an initial value;
when the first oil pressure data received in real time meets the first requirement, the second controller judges that the load test of the first quick solenoid valve of the current isolation valve is successful, and simultaneously controls the first quick solenoid valve to lose power and starts a third timer to start timing;
when the third preset time length is reached, the second controller controls the second quick closing solenoid valve to be electrified so as to conduct the second quick closing oil way valve;
the second controller judges whether the load test of the second quick electromagnetic valve of the current isolation valve is successful according to whether the first oil pressure data received in real time meets a second requirement, wherein the second requirement comprises that the first oil pressure data is continuously reduced to an initial value from a preset threshold value, the load test of the second quick electromagnetic valve of the current isolation valve is judged to be successful when the first oil pressure data received in real time meets the second requirement, and the load test of the second quick electromagnetic valve of the current isolation valve is judged to be failed when the first oil pressure data received in real time does not meet the second requirement, and meanwhile the second quick electromagnetic valve is controlled to lose power;
When the second controller obtains the A-column load test judgment result of the current isolation valve, the second controller sequentially triggers the next A-column load test assembly to start according to the A-column load test assembly starting order table so as to perform the A-column load test,
and B-column load tests are carried out on each isolation valve on the same control loop in sequence, and the method specifically comprises the following steps of:
the third controller controls the third quick closing solenoid valve to be electrified according to a third control instruction so as to conduct the third quick closing oil way valve;
the second pressure switch detects the oil pressure of the second quick closing loop and sends the detected second oil pressure data to the third controller in real time;
the third controller judges whether the load test of the third quick solenoid valve of the current isolation valve is successful according to whether the second oil pressure data received in real time meets a third requirement, wherein the third requirement comprises that the second oil pressure data is continuously increased from an initial value to a preset threshold value;
when the second oil pressure data received in real time meets a third requirement, the third controller judges that the load test of the third quick-closing solenoid valve of the current isolating valve is successful, simultaneously controls the third quick-closing solenoid valve to lose power and starts a third timer, and controls the fourth quick-closing solenoid valve to be electrified when a third preset time length is reached so as to conduct the fourth quick-closing oil way valve;
The third controller judges whether the load test of the fourth quick solenoid valve of the current isolation valve is successful according to whether the second oil pressure data received in real time meets a fourth requirement, wherein the fourth requirement comprises that the second oil pressure data is continuously reduced from a preset threshold value to an initial value;
when the second oil pressure data received in real time meets the fourth requirement, the third controller judges that the load test of the fourth quick solenoid valve of the current isolation valve is successful, and simultaneously controls the fourth quick solenoid valve to lose power;
and when the third controller obtains the B-column load test judgment result of the current isolation valve, the third controller sequentially triggers the next B-column load test assembly to start according to the B-column load test assembly starting order table so as to carry out the B-column load test.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110136662.1A CN113028131B (en) | 2021-02-01 | 2021-02-01 | Test system and method for main steam quick isolation valve and fast reactor main steam system |
| PCT/CN2021/141445 WO2022161062A1 (en) | 2021-02-01 | 2021-12-27 | Test system and method for main steam quick isolation valves, and fast reactor main steam system |
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| CN202110136662.1A CN113028131B (en) | 2021-02-01 | 2021-02-01 | Test system and method for main steam quick isolation valve and fast reactor main steam system |
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| CN113028131B true CN113028131B (en) | 2023-04-28 |
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| CN114484056A (en) * | 2021-12-02 | 2022-05-13 | 大连大高阀门股份有限公司 | Valve control system with redundant design and control method thereof |
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| CN103672148A (en) * | 2013-12-12 | 2014-03-26 | 中广核工程有限公司 | Method and system for detecting main steam isolation valve of nuclear power plant |
| CN112032401A (en) * | 2020-09-24 | 2020-12-04 | 三门核电有限公司 | Control platform and method for nuclear power main steam isolation valve actuating mechanism |
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| US4007906A (en) * | 1974-01-14 | 1977-02-15 | Anchor/Darling Valve Company | Main steam isolation valve |
| US6550314B2 (en) * | 2001-03-19 | 2003-04-22 | Sis-Tech Applications, L.L.P. | Apparatus and method for on-line detection of leaky valves |
| CN205483440U (en) * | 2016-01-28 | 2016-08-17 | 福建宁德核电有限公司 | Solenoid valve testing arrangement on nuclear power station main steam isolating valve |
| CN109029872B (en) * | 2018-09-29 | 2020-08-11 | 中广核工程有限公司 | Nuclear power station containment vessel mechanical penetration piece isolation valve sealing test device and test method |
| CN109555712B (en) * | 2018-11-21 | 2020-08-11 | 深圳中广核工程设计有限公司 | Nuclear power station main pump integration verification test device |
| CN109855814B (en) * | 2019-01-22 | 2020-11-06 | 中广核工程有限公司 | Method and system for detecting tightness of RCPB isolation valve of nuclear power plant |
| CN110108477A (en) * | 2019-05-15 | 2019-08-09 | 阳江核电有限公司 | The intelligent bulge test platform and method of nuclear power unit main steam isolation valve solenoid valve |
| CN111982498B (en) * | 2020-08-18 | 2022-06-17 | 国网天津市电力公司电力科学研究院 | Method for testing reliability of steam stop valve movement of steam turbine unit |
| CN113028131B (en) * | 2021-02-01 | 2023-04-28 | 中国核电工程有限公司 | Test system and method for main steam quick isolation valve and fast reactor main steam system |
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| CN103672148A (en) * | 2013-12-12 | 2014-03-26 | 中广核工程有限公司 | Method and system for detecting main steam isolation valve of nuclear power plant |
| CN112032401A (en) * | 2020-09-24 | 2020-12-04 | 三门核电有限公司 | Control platform and method for nuclear power main steam isolation valve actuating mechanism |
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