CN114743702A - Debugging method for main helium fan of high-temperature gas cooled reactor nuclear power station - Google Patents
Debugging method for main helium fan of high-temperature gas cooled reactor nuclear power station Download PDFInfo
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- CN114743702A CN114743702A CN202210408455.1A CN202210408455A CN114743702A CN 114743702 A CN114743702 A CN 114743702A CN 202210408455 A CN202210408455 A CN 202210408455A CN 114743702 A CN114743702 A CN 114743702A
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- 239000001307 helium Substances 0.000 title claims abstract description 175
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 175
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 175
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000007789 gas Substances 0.000 title claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 79
- 230000008859 change Effects 0.000 claims description 28
- 230000009471 action Effects 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 14
- 238000011056 performance test Methods 0.000 description 15
- 239000002826 coolant Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/006—Details of nuclear power plant primary side of steam generators
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/02—Arrangements of auxiliary equipment
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The invention provides a debugging method of a helium fan of a high-temperature gas-cooled reactor nuclear power station, and belongs to the technical field of debugging of the helium fan of the high-temperature gas-cooled reactor. The method comprises the following specific steps: testing the operation performance of the helium circulator under a preset condition; testing the braking and coasting performance of the main helium fan; and (5) testing the operation of the baffle of the main helium fan. The debugging method provided by the invention can be used for verifying whether the performance of the main helium fan meets the operation requirement of the high-temperature gas cooled reactor or not by comprehensively verifying the operation function of the main helium fan, and simultaneously ensuring the safety of equipment and personnel during the debugging of the main helium fan.
Description
Technical Field
The invention belongs to the technical field of debugging of a helium circulator of a high-temperature gas-cooled reactor, and particularly relates to a debugging method of a helium circulator of a nuclear power station of the high-temperature gas-cooled reactor.
Background
Helium is adopted as a primary loop coolant in a pebble-bed modular high-temperature gas cooled reactor nuclear power station (HTR-PM), the HTR-PM main helium fan drives the primary loop coolant to circulate in a primary loop, heat released by nuclear reaction is transferred, and the function of the nuclear power station is equivalent to that of a main pump of a pressurized water reactor. But the main helium fan and the main pump of the pressurized water reactor have great difference in structure and operation mode.
The helium primary fan must be capable of providing sufficient flow and pressure rise to meet primary coolant flow and heat transfer requirements, and is configured to regulate primary coolant flow based on reactor power, while also being structurally sound to prevent primary coolant leakage. In order to meet the functions, the helium circulator is designed into a large-scale, vertical and high-speed frequency conversion unit, a large number of innovative technologies are adopted, the rotating speed range and the structural form of the large-scale vertical unit are broken through, and the helium circulator is the first reactor equipment adopting the electromagnetic suspension bearing in the world.
The HTR-PM main helium fan is a vertical single-stage centrifugal fan, is positioned in a pressure container at the top end of the steam generator, and the working environment around the HTR-PM main helium fan is a primary loop coolant. The impeller cantilever is arranged at the shaft end of the driving motor, and a labyrinth sealing device is arranged at the shaft penetrating position to prevent helium at 250 ℃ in the lower side fan cavity from directly flowing into the motor cavity. The main helium fan adopts an electromagnetic bearing as a shafting support, the single machine power reaches 4500kW, the speed regulation range is 400-4000 rpm, and the fan with the power scale and the rotating speed does not have a mature model for reference at home and abroad.
In view of the fact that no debugging method completely suitable for the high-temperature gas cooled reactor main helium fan exists at present, a reasonable and feasible debugging method of the HTR-PM main helium fan needs to be established to comprehensively and fully verify the function of the main helium fan, and based on the method, the invention provides the debugging method of the main helium fan of the high-temperature gas cooled reactor nuclear power station.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a debugging method for a helium circulator of a high-temperature gas-cooled reactor nuclear power station.
The invention provides a debugging method of a helium circulator of a high-temperature gas cooled reactor nuclear power station, which comprises the following steps: testing the operation performance of the helium circulator under a preset condition;
testing the braking and coasting performance of the main helium fan;
and (5) testing the operation of the baffle of the main helium fan.
Optionally, the testing the operation performance of the helium circulator includes:
and gradually increasing the rotating speed of the helium circulator to a target rotating speed according to a plurality of gears, operating for 10-20 min at the rotating speed corresponding to each gear, and obtaining a test curve by obtaining parameters at each corresponding rotating speed.
Optionally, the test curves include a flow-rotation speed curve, a pressure rise-rotation speed curve, and a power-rotation speed curve.
Optionally, the number of gears is 10.
Optionally, the testing the braking and coasting performance of the helium circulator includes:
when the rotating speed of the main helium fan is kept at a rated rotating speed, performing frequency converter controlled brake shutdown on the main helium fan, and obtaining the relation between rotating speed change and time to obtain a brake performance curve of the main helium fan;
and when the rotating speed of the main helium fan is kept at the rated rotating speed, performing power-off shutdown on the main helium fan by a frequency converter, and obtaining the relation between rotating speed change and time to obtain an idling performance curve of the main helium fan.
Optionally, the operation of the baffle of the helium circulator is tested, including:
performing an active opening and closing test on a baffle of the main helium fan;
performing a passive opening and closing test on a baffle of the main helium fan;
and carrying out a small-opening test on the baffle of the main helium fan.
Optionally, to the baffle of helium circulator can move the open and close test, include:
the helium circulator is in a shutdown state, the electric device drives the baffle to be opened and closed for multiple times, starting current and running current of the electric device are tested when the baffle is opened and closed, and the action time of the baffle is obtained by judging the change of the current when the baffle acts.
Optionally, to the baffle of helium circulator carries out the passive start-stop test, include:
the baffle of the main helium fan is in a passive state, and whether the opening and closing actions of the baffle are normal or not is determined by judging whether the flow change process of the main helium fan is consistent with the rotation speed change of the main helium fan or not in the opening and closing processes of the main helium fan.
Optionally, the performing of the small opening test on the baffle of the helium circulator includes:
the baffle of the helium circulator is located at the active opening position, the helium circulator runs at a starting rotating speed, the electric device is inched until the baffle can be actively and fully opened, and a first parameter of the electric device and a second parameter of a loop medium after inching at each time are obtained to judge whether the baffle meets the small-opening debugging requirement.
Optionally, the preset condition includes a hot condition and a cold condition.
The invention provides a debugging method of a helium circulator of a high-temperature gas cooled reactor nuclear power station, which comprises the following steps: testing the operation performance of the helium circulator under a preset condition; testing the braking and coasting performance of the main helium fan; and (5) testing the operation of the baffle of the main helium fan. The method provided by the invention can be used for checking whether the performance of the main helium fan meets the operation requirement of the high-temperature gas cooled reactor or not by comprehensively verifying the function of the main helium fan, and simultaneously ensuring the safety of equipment and personnel during the debugging of the main helium fan.
Drawings
Fig. 1 is a flow chart of a method for debugging a helium main blower of a high temperature gas cooled reactor nuclear power plant according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless otherwise specifically defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "including" or "comprising" and the like in this disclosure does not limit the presence or addition of any number, step, action, operation, component, element, and/or group thereof or does not preclude the presence or addition of one or more other different numbers, steps, actions, operations, components, elements, and/or groups thereof. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number and order of the indicated features.
As shown in fig. 1, the invention provides a debugging method S100 for a helium circulator of a high temperature gas cooled reactor nuclear power station, which specifically includes the following steps S110 to S130:
and S110, testing the operation performance of the helium circulator under a preset condition.
It should be noted that the preset conditions of this embodiment include a hot state working condition and a cold state working condition, that is, the cold state performance test and the hot state performance test of the helium circulator are respectively performed under the different preset conditions, where the tests include a fan performance test, a brake and idling test, and a baffle test.
In some preferred embodiments, the thermal state working condition is that a primary helium fan thermal state performance test is carried out under a helium atmosphere with the temperature of 250 ℃ and the primary helium fan thermal state working condition is 5.5 MPa.
In other preferred embodiments, the thermal state condition is that the primary loop is at normal temperature and under a helium atmosphere of about 1.5MPa, and the test of the thermal state performance of the primary helium fan is carried out.
In other preferable embodiments, the cold state working condition is that the primary loop is in a normal temperature dry air atmosphere of 0.6MPa, and the cold state performance test of the helium circulator is carried out.
Specifically, the rotating speed of the helium circulator is gradually increased to a target rotating speed according to a plurality of gears, the rotating speed corresponding to each gear is operated for 10-20 min, and a test curve is obtained by obtaining parameters at each corresponding rotating speed. That is, for the performance test of the helium circulator, the test conditions need to be confirmed first, the rotation speed is adjusted to the target rotation speed, and various parameters are recorded when the rotation speed is stable; gradually increasing the speed in multiple gears for debugging, and respectively recording parameters when the rotating speed is stable; and (5) performing a performance test on the main helium fan to obtain a series of test curves.
The test curves of the present embodiment include a flow rate-rotation speed curve, a pressure rise-rotation speed curve, and a power-rotation speed curve.
It should be further noted that the number of the gears in this embodiment is 10, that is, the rotation speed of the helium circulator is gradually increased to the target rotation speed according to 10 gears.
It should be noted that the target rotation speeds of the present embodiment include a maximum rotation speed corresponding to the cold state performance test and an intermediate rotation speed corresponding to the hot state performance test, that is, for different preset conditions and different test processes, the set target rotation speeds are different.
And S120, testing the braking and coasting performance of the main helium fan.
Specifically, when the rotating speed of the main helium fan is kept at the rated rotating speed, the frequency converter is used for controlling the brake to stop the main helium fan, and the relation between the rotating speed change and the time is obtained so as to obtain the brake performance curve of the main helium fan.
Further, when the rotating speed of the main helium fan is kept at the rated rotating speed, the frequency converter is cut off and the power supply of the main helium fan is stopped, and the relation between the rotating speed change and the time is obtained, so that the idling performance curve of the main helium fan is obtained.
It should be noted that in this embodiment, the power supply and the control of the electromagnetic bearing must not be turned off when the helium circulator rotates, that is, the power supply and the control of the electromagnetic bearing must not be turned off when the frequency converter of the helium circulator is controlled to brake and shut down or the frequency converter of the helium circulator is turned off and shut down.
S130, testing the baffle operation of the helium circulator, wherein the step S130 comprises the following steps S1301-S1303:
s1301, performing active opening and closing test on a baffle of the main helium fan.
Specifically, the baffle is opened and closed experimently, namely the helium circulator is in a shutdown state, the electric device drives the baffle to open and close for a plurality of times, the starting current and the running current of the electric device are tested when the baffle is opened and closed, the current change is judged when the baffle is moved to obtain the baffle action time, namely whether the response time corresponding to the baffle opening action and the baffle closing action is qualified is judged, and whether the running state of the helium circulator is normal is further judged.
It should be noted that, when the baffle is started, a starting peak current appears, then the current gradually changes and stabilizes, and finally becomes zero current, that is, the time corresponding to the motor stop, that is, the time from the maximum current to the zero current is the baffle action time, and in the process from the maximum current to the zero current, the running current needs to be measured continuously to obtain the time difference corresponding to the current change, so as to obtain the baffle action time.
It should be understood that the active state of the present embodiment refers to that the baffle is driven by the driving device to perform an opening and closing test, and the current change during the opening and closing actions of the baffle is judged to obtain the action time of the baffle.
S1302, performing a passive opening and closing test on a baffle of the main helium fan.
Specifically, the baffle of the helium circulator is in a passive state during a passive opening and closing test of the baffle, whether the opening and closing actions of the baffle are normal or not is determined by judging whether the flow change process of the helium circulator is consistent with the rotation speed change of the helium circulator or not in the opening and closing processes of the helium circulator, and whether the operation state of the helium circulator is normal or not can be judged according to the obtained baffle action.
It should be understood that the passive state of this embodiment means that the baffle is opened and closed by gravity without being driven by a driving device, and the opening and closing state of the baffle in the passive state can be inferred by the flow of a loop.
And S1303, performing a small-opening test on a baffle of the main helium fan.
Specifically, when the baffle is subjected to a small-opening test, the baffle of the helium circulator is located at an active opening position, the helium circulator runs at a starting rotating speed, the electric device is inching until the baffle is actively and completely closed, a first parameter of the electric device after inching at each time and a second parameter of a loop medium are obtained, and whether the baffle meets the small-opening debugging requirement or not is judged. That is, the baffle is in the active opening position, after the baffle is opened, the electric device is inched repeatedly until the baffle is actively closed, and the parameters of the electric device and the parameter change of a loop after inching once are recorded.
It should be noted that the first parameters of the present embodiment include temperature and current; the second parameters include flow, temperature, and pressure. That is to say, the temperature and the current value of the electric device are obtained, the flow, the temperature and the pressure value of a loop are obtained, and whether the operation of the baffle meets the small opening debugging requirement or not is judged according to the parameters.
The invention can comprehensively test the cold state performance and the hot state performance of the helium circulator, respectively obtain the rotating speed and the flow, the pressure rise, the power performance curve, the brake performance curve and the idling performance curve of the helium circulator under the cold state air atmosphere and the hot state air atmosphere of a loop, accurately measure the active and passive opening and closing time of the baffle of the helium circulator and test the small opening function of the baffle of the circulator.
The debugging method of the helium main fan of the high-temperature gas cooled reactor nuclear power station is further described by combining a plurality of specific embodiments:
example 1
In this embodiment, after the primary helium fan system is completely installed, the cold-state performance test of the primary helium fan is performed in a normal-temperature dry air atmosphere with a primary circuit of 0.6MPa, and the performance test, the braking and idling test, and the baffle test of the primary helium fan are sequentially performed.
S1, testing the performance of the helium circulator, wherein the testing comprises the following contents:
s1.1, gradually increasing the rotating speed of the helium circulator to the maximum rotating speed (cold state performance test) through a frequency converter, maintaining operation for 15min, observing and recording the flow, pressure and temperature of a loop, the temperature and vibration of a driving motor of the helium circulator, the temperature of an electromagnetic bearing and other parameters.
S1.2, respectively measuring the performance of 10-gear rotating speed platforms between the starting rotating speed and the maximum rotating speed, keeping each rotating speed platform stably running for 15 minutes, recording 3 groups of parameters, and finally obtaining a series of test curves, wherein the test curves comprise a flow-rotating speed curve (Q-N), a pressure rise-rotating speed curve (delta P-N) and a power-rotating speed curve (N-N).
S2, the brake and coasting test of the helium circulator comprises the following contents:
s2.1, when the rotating speed of the main helium fan is kept at the rated rotating speed, a frequency converter is used for controlling brake and stop, the relation between rotating speed change and time is recorded, so that a brake performance curve of the main helium fan is obtained, and the power supply and control of an electromagnetic bearing cannot be turned off when the fan rotates.
S2.2, when the rotating speed of the main helium fan is kept at the rated rotating speed, the frequency converter is cut off and the power supply is stopped, and the relation between the rotating speed change and the time is recorded, so that the idling performance curve of the main helium fan is obtained, and the power supply and the control of the electromagnetic bearing cannot be cut off when the fan rotates.
S3, the test of the baffle of the main helium fan comprises the following contents:
s3.1, the main helium fan is in a stop state, the electric device drives the baffle to open and close for 3 times, the starting current and the running current of the electric device when the baffle acts are measured by using an electric quality tester or a pincerlike clamp meter, the change process of the current when the baffle acts is judged, and the time from the maximum current to zero current is the action time of the baffle.
S3.2, the baffle is in a passive state, and in the starting and stopping process of the helium circulator, the change process of the flow of the circulator is observed to be consistent with the change of the rotating speed of the circulator so as to confirm that the opening-closing action of the baffle is normal and the baffle is passively started and closed for 3 times.
S3.3, during the small-opening test of the baffle, the baffle is located at the active opening position, the helium circulator runs at the starting rotating speed, the small-opening test button of the baffle is repeatedly clicked until the baffle is actively and completely closed, and the parameters of the electric device and the flow, temperature and pressure changes of a loop after the baffle is clicked once are observed and recorded.
The test method provided by the embodiment can comprehensively test the cold state performance of the helium circulator, obtain the rotating speed and flow, the pressure rise, the power performance curve, the brake performance curve and the idling performance curve of the helium circulator under the cold state air atmosphere of the primary loop, accurately measure the active and passive opening and closing time of the baffle of the helium circulator and test the small opening function of the baffle of the circulator.
Example 2
In this embodiment, after the primary helium fan system is completely installed, a thermal state performance test of the primary helium fan is performed in a helium atmosphere with a primary circuit of 1.5MPa, and a performance test, a braking and idling test, and a baffle test of the primary helium fan are sequentially performed.
S1, testing the performance of the helium circulator, wherein the testing comprises the following contents:
s1.1, gradually increasing the rotating speed of the helium circulator to an intermediate rotating speed (thermal state performance test) through a frequency converter, stably operating for 15 minutes, and observing whether each parameter is abnormal.
S1.2, heating a primary loop through a main helium fan, and supplementing a proper amount of helium to heat and boost the primary loop to a thermal state working condition.
S1.3, respectively measuring the performance of 10-gear rotating speed platforms between the starting rotating speed and the maximum rotating speed, keeping each rotating speed platform stably running for 15 minutes, recording 3 groups of parameters, and finally obtaining a series of test curves, wherein the test curves comprise a flow-rotating speed curve (Q-N), a pressure rise-rotating speed curve (delta P-N) and a power-rotating speed curve (N-N).
S2, the brake and coasting test of the helium circulator comprises the following contents:
s2.1, when the rotating speed of the helium circulator is kept at the rated rotating speed, the frequency converter is used for controlling the brake to stop, and the relation between the rotating speed change and the time is recorded so as to obtain the brake performance curve of the helium circulator, and the power supply and the control of the electromagnetic bearing cannot be turned off when the circulator rotates.
S2.2, when the rotating speed of the helium circulator is kept at the rated rotating speed, the frequency converter is cut off and the power supply is stopped, and the relation between the rotating speed change and the time is recorded to obtain the idling performance curve of the helium circulator, so that the power supply and the control of the electromagnetic bearing cannot be turned off when the circulator rotates.
S3, the test of the baffle of the helium circulator comprises the following contents:
s3.1, the main helium fan is in a stop state, the electric device drives the baffle to open and close for 3 times, the starting current and the running current of the electric device when the baffle acts are measured by using an electric quality tester or a pincerlike clamp meter, the change process of the current when the baffle acts is judged, and the time from the maximum current to zero current is the action time of the baffle.
S3.2, the baffle is in a passive state, and in the starting and stopping process of the helium circulator, the change process of the flow of the circulator is observed to be consistent with the change of the rotating speed of the circulator so as to confirm that the opening-closing action of the baffle is normal and the baffle is passively started and closed for 3 times.
S3.3, during the small-opening test of the baffle, the baffle is located at the active opening position, the helium circulator runs at the starting rotating speed, the small-opening test button of the baffle is repeatedly clicked until the baffle is actively and completely closed, and the parameters of the electric device and the flow, temperature and pressure changes of a loop after the baffle is clicked once are observed and recorded.
The embodiment can comprehensively test the thermal state performance of the helium circulator, obtain the rotating speed and flow, the pressure rise, the power performance curve, the brake performance curve and the idling performance curve of the helium circulator under the thermal state helium atmosphere of a loop, accurately measure the active and passive opening and closing time of the baffle of the helium circulator and test the small-opening function of the baffle of the circulator.
The invention provides a debugging method of a helium circulator of a high-temperature gas cooled reactor nuclear power station, which has the following beneficial effects: the method can comprehensively test the performance of the main helium fan, obtain the rotating speed and flow, the pressure rise, the power performance curve, the braking performance curve and the idling performance curve of the main helium fan under the primary cold-state air atmosphere and the primary hot-state helium atmosphere, accurately measure the active and passive opening and closing time of the baffle of the main helium fan, test the small opening function of the baffle of the fan, check whether the performance of the main helium fan meets the operation requirement of a high-temperature gas cooled reactor or not, and simultaneously ensure the safety of equipment and personnel during the debugging of the main helium fan.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A debugging method for a helium fan of a high-temperature gas cooled reactor nuclear power station is characterized by comprising the following steps: testing the operation performance of the helium circulator under a preset condition;
testing the braking and coasting performance of the main helium fan;
and (5) testing the operation of the baffle of the main helium fan.
2. The method of claim 1, wherein said testing the operating performance of the helium primary blower comprises:
and gradually increasing the rotating speed of the helium circulator to a target rotating speed according to a plurality of gears, operating for 10-20 min at the rotating speed corresponding to each gear, and obtaining a test curve by obtaining parameters at each corresponding rotating speed.
3. The method of claim 2, wherein the test curves include a flow-to-speed curve, a pressure rise-to-speed curve, and a power-to-speed curve.
4. Method according to claim 2, characterized in that the number of gear steps is 10.
5. The method according to any one of claims 1 to 4, wherein the testing the braking and coasting performance of the helium circulator comprises:
when the rotating speed of the main helium fan is kept at a rated rotating speed, performing frequency converter controlled brake shutdown on the main helium fan, and obtaining the relation between rotating speed change and time to obtain a brake performance curve of the main helium fan;
and when the rotating speed of the main helium fan is kept at the rated rotating speed, performing power-off shutdown on the main helium fan by a frequency converter, and obtaining the relation between the rotating speed change and the time to obtain the idling performance curve of the main helium fan.
6. The method of any one of claims 1 to 4, wherein the testing the operation of the baffle of the helium circulator comprises:
performing an active opening and closing test on a baffle of the main helium fan;
performing a passive opening and closing test on a baffle of the main helium fan;
and carrying out a small-opening test on the baffle of the main helium fan.
7. The method according to claim 6, wherein the performing of the active opening and closing test on the baffle of the helium circulator comprises:
the helium circulator is in a shutdown state, the electric device drives the baffle to be opened and closed for multiple times, starting current and running current of the electric device are tested when the baffle is opened and closed, and the action time of the baffle is obtained by judging the change of the current when the baffle acts.
8. The method according to claim 7, wherein the passive opening and closing test of the baffle of the helium circulator comprises:
the baffle of the main helium fan is in a passive state, and whether the opening and closing actions of the baffle are normal or not is determined by judging whether the flow change process of the main helium fan is consistent with the rotation speed change of the main helium fan or not in the opening and closing processes of the main helium fan.
9. The method of claim 7, wherein the performing of the small opening test on the baffle of the helium circulator comprises:
the baffle of the helium circulator is located at the active opening position, the helium circulator runs at a starting rotating speed, the electric device is inched until the baffle can be actively and fully opened, and a first parameter of the electric device and a second parameter of a loop medium after inching at each time are obtained to judge whether the baffle meets the small-opening debugging requirement.
10. The method according to any one of claims 1 to 4, wherein the preset conditions comprise hot and cold conditions.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115719655A (en) * | 2022-11-21 | 2023-02-28 | 华能山东石岛湾核电有限公司 | Device and method for high-temperature gas cooled reactor primary helium fan baffle test |
| CN115719655B (en) * | 2022-11-21 | 2024-05-24 | 华能山东石岛湾核电有限公司 | Device and method for high-temperature gas cooled reactor main helium fan baffle test |
Citations (3)
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| CN115719655A (en) * | 2022-11-21 | 2023-02-28 | 华能山东石岛湾核电有限公司 | Device and method for high-temperature gas cooled reactor primary helium fan baffle test |
| CN115719655B (en) * | 2022-11-21 | 2024-05-24 | 华能山东石岛湾核电有限公司 | Device and method for high-temperature gas cooled reactor main helium fan baffle test |
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| CN114743702B (en) | 2024-02-23 |
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