CN111237057B - Safety verification method for nuclear power station hydrostatic test pump turbine generator set system equipment - Google Patents
Safety verification method for nuclear power station hydrostatic test pump turbine generator set system equipment Download PDFInfo
- Publication number
- CN111237057B CN111237057B CN202010055210.6A CN202010055210A CN111237057B CN 111237057 B CN111237057 B CN 111237057B CN 202010055210 A CN202010055210 A CN 202010055210A CN 111237057 B CN111237057 B CN 111237057B
- Authority
- CN
- China
- Prior art keywords
- diesel generator
- preset
- safety verification
- pump
- test pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 109
- 238000012795 verification Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000002706 hydrostatic effect Effects 0.000 title claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 11
- 230000008439 repair process Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000010200 validation analysis Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/082—Safety, indicating, or supervising devices relating to valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
Abstract
The invention relates to the technical field of nuclear power station equipment management, and discloses a safety verification method for nuclear power station hydraulic test pump turbine generator set system equipment, which comprises the steps of disconnecting an outlet switch connected with a diesel generator, wherein the outlet switch is used for connecting the diesel generator and a hydraulic test pump; starting the diesel generator and detecting the running state of the diesel generator; judging whether the running state meets the preset running requirement or not; if the running state meets the preset running requirement, the diesel generator is closed, then the outlet switch is closed, the diesel generator is started again, and the safety verification is carried out on the diesel generator according to the preset verification program. According to the invention, through an off-line verification mode, the fault risk of the diesel generator is eliminated, the overhaul process is optimized, the risk of IO events generated by a system unit is reduced, the occupation of the overhaul period is reduced, and the operation benefit of the nuclear power station is improved.
Description
Technical Field
The invention belongs to the technical field of nuclear power station equipment management, and particularly relates to a safety verification method for nuclear power station hydraulic test pump turbine generator set system equipment.
Background
An LLS (hydraulic pressure Turbine Generator Set) system is an important component of a pressurized water reactor nuclear power plant, and can ensure that under the condition that two rows of distribution boards (LHA (6.6 KV AC emergency distribution system in A) and LHB (6.6 KV AC emergency distribution system in B) of one unit can not supply power (H3 working condition), the LLS system can also provide a 380V emergency power supply for a hydraulic pressure test Pump, so that the supply of sealing water of a main Pump shaft is ensured, and the integrity of a reactor coolant system is ensured; under the condition of an over-design basis accident, the system supplies power to instruments required by unit operation. Thus, proper operation of the LLS system is important for proper operation of the nuclear power plant.
In the emergency state, the hydrostatic test pump is powered by a diesel generator in the LLS system. The diesel generators in the LLS system need to be periodically validated for safety to ensure that they can normally provide power to the hydrostatic test pump in an emergency situation. The existing safety verification method uses an online verification mode to perform safety verification on the diesel generator. Due to various system reasons, the first start failure of the diesel generator is easily caused, at the moment, the adjacent unit of the same power station is in power operation, a safety verification program is executed according to a safety verification specification, an unavailable event (IO) of unit equipment is generated, and the availability of I0 control and a hydraulic test pump of the adjacent unit is influenced.
Disclosure of Invention
The invention aims to provide a safety verification method for a nuclear power station hydrostatic test pump turbine generator set system device, and aims to solve the technical problem that IO events are easily generated by the safety verification method in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the safety verification method for the steam turbine generator set system equipment of the nuclear power station hydrostatic test pump comprises the following steps:
disconnecting an outlet switch connected with a diesel generator, wherein the outlet switch is used for connecting the diesel generator with a hydraulic test pump, and the nuclear power station hydraulic test pump turbine generator set system equipment comprises the diesel generator;
starting the diesel generator and detecting the running state of the diesel generator;
judging whether the running state meets the preset running requirement or not;
if the operation state meets the preset operation requirement, the diesel generator is closed, then the outlet switch is closed, the diesel generator is started again, and safety verification is carried out on the diesel generator according to a preset verification program.
Optionally, the starting the diesel generator and detecting the operation state of the diesel generator include:
operating the diesel generator for a first specified length of time;
and recording the operating parameters of the diesel generator on the specified technical indexes.
Optionally, the first specified duration comprises 10 minutes.
Optionally, the specified technical index includes at least one of output power, bearing temperature, motor speed, and running stability.
Optionally, the determining whether the operation state meets a preset operation requirement includes:
judging whether the operation parameters are matched with the corresponding set threshold values in the preset operation requirements or not;
if the operating parameters of at least one specified technical index are not matched with the corresponding set threshold value in the preset operating requirement, judging that the operating state does not accord with the preset operating requirement;
and if the operation parameters of all the specified technical indexes are matched with the corresponding set thresholds in the preset operation requirement, judging that the operation state meets the preset operation requirement.
Optionally, if there is a mismatch between the operating parameter of the at least one specified technical index and the corresponding set threshold in the preset operating requirement, after determining that the operating state does not meet the preset operating requirement, the method further includes:
acquiring a generator repair scheme associated with a specified technical index which is not matched with a set threshold;
and repairing the diesel generator according to the generator repairing scheme.
Optionally, the safety verification of the diesel generator according to a preset verification program includes:
setting working states of the diesel generator and system equipment connected with the diesel generator according to the preset verification program;
acquiring motor test data of the diesel generator and equipment test data of the system equipment;
and judging whether the diesel generator passes safety verification or not according to the motor test data and the equipment test data.
Optionally, the safety verification of the diesel generator according to a preset verification program further includes:
setting a starting sequence of the diesel generator and the hydraulic test pump according to the preset verification program;
when the diesel generator and the hydraulic test pump are in an operating state, collecting motor test data of the diesel generator and pump test data of the hydraulic test pump;
and judging whether the diesel generator passes safety verification or not according to the motor test data and the pump test data.
Optionally, the safety verification of the diesel generator according to a preset verification program further includes:
performing LHA and LHB power loss tests;
controlling the diesel generator to supply power to the hydrostatic test pump;
controlling the hydrostatic test pump to inject water into the shaft seal of the reactor cooler pump, and measuring the water injection flow of the shaft seal of the reactor cooler pump;
calculating the flow recovery time consumed by the water injection flow reaching a preset stable flow value;
and judging whether the diesel generator passes safety verification or not according to the flow recovery time.
Optionally, the safety verification of the diesel generator according to a preset verification program further includes:
setting the working states of the hydrostatic test pump and a power control cabinet connected with the diesel generator according to the preset verification program;
acquiring pump test data of the hydraulic test pump and a cabinet feedback signal of the power control cabinet;
and judging whether the diesel generator passes safety verification or not according to the pump test data and the cabinet feedback signal.
Optionally, the safety verification of the diesel generator according to a preset verification program further includes:
setting the working state of an RCV (chemical and volume control) control valve connected with the diesel generator according to the preset verification program;
checking whether the RCV control valve is in a preset first control position.
Optionally, the safety verification of the diesel generator according to a preset verification program further includes:
setting the working state of an RIS (safe injection system) control valve connected with the diesel generator according to the preset verification program;
checking whether the RIS control valve is in a preset second control position.
The safety verification method for the nuclear power station hydrostatic test pump turbine generator set system equipment has the beneficial effects that: compared with the prior art, the method eliminates the fault risk of the diesel generator by means of off-line verification, optimizes the overhaul process, greatly improves the flexibility of system equipment safety verification of the hydraulic test pump turbine generator set system, reduces the risk of IO (input/output) events generated by the system unit, greatly reduces the time consumed for searching and eliminating the fault when the fault occurs, reduces the occupation of the overhaul period, and obviously improves the running benefit of the nuclear power station.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a system device of a nuclear power plant hydraulic test pump turbine generator set system according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, a method for verifying the safety of a hydraulic test pump turbine generator set system of a nuclear power plant according to the present invention will be described. The safety verification method for the hydraulic test pump turbine generator set system equipment of the nuclear power station comprises the following steps:
disconnecting an outlet switch connected with the diesel generator 110, wherein the outlet switch is used for connecting the diesel generator 110 with a hydraulic test pump, and the nuclear power plant hydraulic test pump turbine generator set system equipment comprises the diesel generator 110;
starting the diesel generator 110 and detecting the operation state of the diesel generator 110;
judging whether the running state meets the preset running requirement or not;
if the operating state meets the preset operating requirement, the diesel generator 110 is turned off, then the outlet switch is turned on, the diesel generator 110 is started again, and the safety of the diesel generator 110 is verified according to a preset verification program.
In this embodiment, the LLS system of the nuclear power plant is a hydraulic test pump turbine generator set system. The LLS system can provision multiple system devices. As shown in FIG. 1, the LLS system can include a cabinet 10, a cabinet 20, a cabinet 30, and a cabinet 40. The cabinet 10 is connected to the cabinet 20, the cabinet 20 is further connected to the cabinet 30, and the cabinet 30 is further connected to the cabinet 40. The cabinet 40 is connected to a motor 50. In the cabinet 10, there are provided a plurality of control switches, such as switches 101, 102, 103; a plurality of control switches are arranged in the cabinet 20, such as switches 201 and 208; a plurality of control switches, such as switches 301 and 302, are arranged on the cabinet 30; in the cabinet 40, there are provided a plurality of control switches, such as switches 401, 402, 403, 404. The cabinet 10 is also connected to a diesel generator 110, and electric power generated by the diesel generator 110 is transmitted to the mobile load and the auxiliary system load connected to the cabinet 20 through the cabinet 20. The cabinet 20 is connected to the energy storage system power supply via a switch 201. The cabinet 20 is also provided with a transformer 210. Cabinet 20 is also connected to a power supply 220. The auxiliary system load is powered by the power supply 220 at normal times to ensure warm-up of the diesel engine 110 for quick start. When the diesel engine 110 is started, the auxiliary system load is automatically switched to the circuit where the diesel engine 110 is located, and power is supplied by the diesel engine 110. And the cabinet 40 is also connected to a standby turbine generator 310. The cabinet 40 includes three power supplies, namely, a power supply provided for the cabinet 30, a power supply provided for another cabinet 60 (belonging to another unit), and a low-voltage ac power supply 70. The low-voltage ac power supply 70 provides 380V of three-phase ac power.
The safety verification of the system equipment of the nuclear power plant hydraulic test pump turbine generator set system mainly comprises the safety verification of the diesel generator 110. When the diesel generator 110 is subjected to the safety verification, the outlet switch connected to the diesel generator 110 may be turned off. The egress switches may include switch 103, switch 203, switch 301, switch 404. Then, the diesel generator 110 is started, and the operating state of the diesel generator 110 is detected. The diesel generator 110 is in an unloaded state at this time. The operating state of the diesel generator 110 may be represented by operating parameters on a specified specification. The designated technical index comprises at least one of output power, bearing temperature, motor rotating speed and running stability. The corresponding detection means can be configured to obtain the operating parameters on the specified technical index. For example, the output power can be measured by a power meter, the bearing temperature can be measured by an infrared temperature detector, the motor rotating speed can be measured by a rotating speed testing device, the running stability can be manually evaluated, and the motor rotating speed can also be measured by special equipment.
The preset operation requirement means that the operation parameters on each specified specification generated when the diesel generator 110 is operated need to be within a set range. For example, the output power is within plus or minus 5% of the rated power, the bearing temperature is less than 70 ℃, the motor rotating speed is within plus or minus 5% of the rated power, and the grade of the running stability is qualified.
When the operation state of the diesel generator 110 meets the preset operation requirement, it indicates that the diesel generator 110 can normally operate, and the off-line verification of the diesel generator 110 is realized. At this point, the diesel generator 110 may be turned off, and then the outlet switch may be closed to restart the diesel generator 110 to perform online validation of the diesel generator 110. The on-line authentication may use a preset authentication procedure to perform security authentication on the diesel generator 110. The preset authentication procedure may include one or more authentication measures. If the diesel generator 110 has quality problems, the diesel generator 110 can be repaired in time, so that the repairing efficiency of the diesel generator 110 is greatly improved, and meanwhile, because the diesel generator 110 is separated from the system unit, the diesel generator 110 cannot generate negative effects on the system unit even if tripping. Through the off-line verification mode, the fault risk of the diesel generator 110 is eliminated, the overhaul process is optimized, the flexibility of system equipment safety verification of a hydraulic test pump turbine generator set system is greatly improved, the risk of IO events generated by the system unit is reduced, the time consumed by finding and eliminating faults when faults occur is greatly reduced, the occupation of the overhaul period is reduced, and the operation benefit of the nuclear power station is remarkably improved.
Optionally, the starting the diesel generator 110 and detecting the operation state of the diesel generator 110 include:
operating the diesel generator 110 for a first specified length of time;
the operating parameters of the diesel generator 110 at the specified specifications are recorded.
In this embodiment, when the outlet switch is turned off and the diesel generator 110 is turned on, the diesel generator 110 is in a no-load state, and the no-load time should be controlled within 10 minutes. Here, the dead time is a first specified duration. The operating parameters of the diesel generator 110 at the specified specifications can be recorded by setting corresponding detection devices. The designated technical index comprises at least one of output power, bearing temperature, motor rotating speed and running stability. For example, the output power can be measured by a power meter, the bearing temperature can be measured by an infrared temperature detector, the motor rotating speed can be measured by a rotating speed testing device, the running stability can be manually evaluated, and the motor rotating speed can also be measured by special equipment.
Optionally, the determining whether the operation state meets a preset operation requirement includes:
judging whether the operation parameters are matched with the corresponding set threshold values in the preset operation requirements or not;
if the operating parameters of at least one specified technical index are not matched with the corresponding set threshold value in the preset operating requirement, judging that the operating state does not accord with the preset operating requirement;
and if the operation parameters of all the specified technical indexes are matched with the corresponding set thresholds in the preset operation requirement, judging that the operation state meets the preset operation requirement.
In this embodiment, only when the operation parameters on the specified technical index to be detected all meet the preset operation requirement, it may be determined that the operation state of the diesel generator 110 meets the preset operation requirement. The setting threshold can be set according to actual needs. For example, the set threshold of the output power is within plus or minus 5% of the rated power, the set threshold of the bearing temperature is less than 70 ℃, the set threshold of the motor rotation speed is within plus or minus 5% of the rated power, and the set threshold of the operation smoothness is qualified.
Optionally, if there is a mismatch between the operating parameter of the at least one specified technical index and the corresponding set threshold in the preset operating requirement, after determining that the operating state does not meet the preset operating requirement, the method further includes:
acquiring a generator repair scheme associated with a specified technical index which is not matched with a set threshold;
the diesel generator 110 is repaired according to the generator repair schedule.
In this embodiment, the specified technical indicators that do not match the set threshold may be one or more. When the specified technical indexes which do not match the set threshold value are more than two, the matched generator repair scheme can be one or more than one.
After the repair is completed, the diesel generator 110 may continue to be security validated.
Optionally, the performing security verification on the diesel generator 110 according to a preset verification procedure includes:
setting the working states of the diesel generator 110 and the system equipment connected with the diesel generator 110 according to the preset verification program;
acquiring motor test data of the diesel generator 110 and equipment test data of the system equipment;
and judging whether the diesel generator 110 passes safety verification or not according to the motor test data and the equipment test data.
In this embodiment, the preset verification program may include a plurality of verification measures. One of the verification measures includes setting the operating states of the diesel generator 110 and the system equipment connected to the diesel generator 110, obtaining corresponding equipment measurement data, determining whether the diesel generator 110 normally operates under a load according to the fed back equipment test data, and determining that the diesel generator 110 passes safety verification if the diesel generator 110 normally operates.
Optionally, the performing security verification on the diesel generator 110 according to a preset verification procedure further includes:
setting a starting sequence of the diesel generator 110 and the hydraulic test pump according to the preset verification program;
when the diesel generator 110 and the hydraulic test pump are in an operating state, collecting motor test data of the diesel generator 110 and pump test data of the hydraulic test pump;
and judging whether the diesel generator 110 passes safety verification according to the motor test data and the pump test data.
In this embodiment, the preset verification program may include a plurality of verification measures. One of the validation measures includes setting up the diesel generator 110 and the start-up sequence of the hydrostatic test pump connected to the diesel generator 110. After the diesel generator 110 and the hydraulic test pump are started according to the starting sequence specified by the preset verification program, the motor test data of the diesel generator 110 and the pump test data of the hydraulic test pump can be acquired, whether the pump test data of the hydraulic test pump can reach the standard under the load of the diesel generator 110 is judged according to the fed-back motor test data and the fed-back pump test data, and if the motor test data and the pump test data are in a qualified numerical range (the numerical range is set by the preset verification program), the diesel generator 110 is judged to pass the safety verification.
Optionally, the performing security verification on the diesel generator 110 according to a preset verification procedure further includes:
performing LHA and LHB power loss tests;
controlling the diesel generator 110 to supply power to the hydrostatic test pump;
controlling the hydrostatic test pump to inject water into the shaft seal of the reactor cooler pump, and measuring the water injection flow of the shaft seal of the reactor cooler pump;
calculating the flow recovery time consumed by the water injection flow reaching a preset stable flow value;
and judging whether the diesel generator 110 passes safety verification according to the flow recovery time.
In this embodiment, the preset verification program may include a plurality of verification measures. One of the validation measures included testing the flow rate of water injected into the shaft seal of the reactor cooler pump. Specifically, the power supply of the hydraulic test pump is disconnected from the LHA and the LHB, and is connected to the line where the diesel generator 110 is located, so that the diesel generator 110 supplies power to the hydraulic test pump. Then controlling a hydrostatic test pump to inject water into the shaft seal of the reactor cooler pump, and measuring the water injection flow of the shaft seal of the reactor cooler pump; and calculating the flow recovery time consumed by the water injection flow reaching a preset stable flow value. And judging whether the diesel generator 110 passes the safety verification according to the flow recovery time. For example, if the flow recovery standard-reaching time set by the preset verification program is 90 seconds, and if the actually measured flow recovery time is 70 seconds, it may be determined that the diesel generator 110 passes the safety verification; if the measured flow rate recovery time is 120 seconds, it is determined that the diesel generator 110 does not pass the safety verification.
Optionally, the performing security verification on the diesel generator 110 according to a preset verification procedure further includes:
setting the working states of the hydraulic test pump and a power supply control cabinet connected with the diesel generator 110 according to the preset verification program;
acquiring pump test data of the hydraulic test pump and a cabinet feedback signal of the power control cabinet;
and judging whether the diesel generator 110 passes safety verification or not according to the pump test data and the cabinet feedback signal.
In this embodiment, the preset verification program may include a plurality of verification measures. One of the verification measures includes verifying pump test data of the hydraulic test pump and a cabinet feedback signal of the power control cabinet. The power control cabinet may comprise the cabinets 10, 20, 30, 40 of fig. 1. The preset verification program presets a qualified data range of a plurality of items of pump test data and cabinet feedback signals, and if the pump test data and the cabinet feedback signals collected by feedback are in the qualified data range, it can be determined that the diesel generator 110 passes the safety verification.
Optionally, the performing security verification on the diesel generator 110 according to a preset verification procedure further includes:
setting the working state of an RCV (chemical and volume control) control valve connected to the diesel generator 110 according to the preset verification program;
checking whether the RCV control valve is in a preset first control position.
In this embodiment, when the preset verification program is used to perform the safety verification on the diesel generator 110, the working state of the RCV control valve connected to the diesel generator 110 needs to be monitored. When a certain verification measure in the preset verification program is executed, the RCV control valve can be caused to be automatically opened (the RCV control valve is in the first control position after being opened). If the RCV control valve fails to open automatically, it may be determined that the diesel generator 110 fails the safety verification. If the RCV control valve is automatically opened, it may be determined that the diesel generator 110 passes the safety verification.
Optionally, the performing security verification on the diesel generator 110 according to a preset verification procedure further includes:
setting the working state of an RIS (safe injection system) control valve connected with the diesel generator 110 according to the preset verification program;
checking whether the RIS control valve is in a preset second control position.
In this embodiment, when the preset verification program is used to perform the safety verification on the diesel generator 110, the working state of the RIS control valve connected to the diesel generator 110 needs to be monitored. When a certain verification measure in the preset verification program is executed, the RIS control valve is caused to close automatically (in the second control position after closing). If the RIS control valve fails to close automatically, it may be determined that the diesel generator 110 fails the safety verification. If the RIS control valve is automatically closed, it can be determined that the diesel generator 110 passes the safety verification.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A safety verification method for a nuclear power station hydrostatic test pump turbine generator set system device is characterized by comprising the following steps:
disconnecting an outlet switch connected with a diesel generator, wherein the outlet switch is used for connecting the diesel generator with a hydraulic test pump, and the nuclear power station hydraulic test pump turbine generator set system equipment comprises the diesel generator;
starting the diesel generator and detecting the running state of the diesel generator;
judging whether the running state meets the preset running requirement or not;
if the running state meets the preset running requirement, closing the diesel generator, then closing the outlet switch, restarting the diesel generator, and carrying out safety verification on the diesel generator according to a preset verification program;
wherein the starting the diesel generator and detecting an operation state of the diesel generator includes:
operating the diesel generator for a first specified length of time;
recording operation parameters of the diesel generator on specified technical indexes, wherein the specified technical indexes comprise at least one of output power, bearing temperature, motor rotating speed and running stability;
the judging whether the running state meets the preset running requirement includes:
judging whether the operation parameters are matched with the corresponding set threshold values in the preset operation requirements or not;
if the operating parameters of at least one specified technical index are not matched with the corresponding set threshold value in the preset operating requirement, judging that the operating state does not accord with the preset operating requirement;
and if the operation parameters of all the specified technical indexes are matched with the corresponding set thresholds in the preset operation requirement, judging that the operation state meets the preset operation requirement.
2. The method of claim 1, wherein the first specified length of time comprises 10 minutes.
3. The safety verification method for the nuclear power plant hydraulic test pump turbine generator set system equipment according to claim 1, wherein if there is a mismatch between an operation parameter of at least one specified technical index and a corresponding set threshold in the preset operation requirement, after determining that the operation state does not meet the preset operation requirement, the method further comprises:
acquiring a generator repair scheme associated with a specified technical index which is not matched with a set threshold;
and repairing the diesel generator according to the generator repairing scheme.
4. The safety verification method for the nuclear power plant hydraulic test pump turbine generator set system equipment as claimed in claim 1, wherein the safety verification for the diesel generator according to a preset verification program comprises the following steps:
setting working states of the diesel generator and system equipment connected with the diesel generator according to the preset verification program;
acquiring motor test data of the diesel generator and equipment test data of the system equipment;
and judging whether the diesel generator passes safety verification or not according to the motor test data and the equipment test data.
5. The safety verification method for the nuclear power plant hydraulic test pump turbine generator set system equipment as claimed in claim 1, wherein the safety verification for the diesel generator according to a preset verification program further comprises:
setting a starting sequence of the diesel generator and the hydraulic test pump according to the preset verification program;
when the diesel generator and the hydraulic test pump are in an operating state, collecting motor test data of the diesel generator and pump test data of the hydraulic test pump;
and judging whether the diesel generator passes safety verification or not according to the motor test data and the pump test data.
6. The safety verification method for the nuclear power plant hydraulic test pump turbine generator set system equipment as claimed in claim 1, wherein the safety verification for the diesel generator according to a preset verification program further comprises:
executing an LHA and LHB power loss test, wherein the LHA is an A-column 6.6KV alternating current emergency power distribution system, and the LHB is a B-column 6.6KV alternating current emergency power distribution system;
controlling the diesel generator to supply power to the hydrostatic test pump;
controlling the hydrostatic test pump to inject water into the shaft seal of the reactor cooler pump, and measuring the water injection flow of the shaft seal of the reactor cooler pump;
calculating the flow recovery time consumed by the water injection flow reaching a preset stable flow value;
and judging whether the diesel generator passes safety verification or not according to the flow recovery time.
7. The safety verification method for the nuclear power plant hydraulic test pump turbine generator set system equipment as claimed in claim 1, wherein the safety verification for the diesel generator according to a preset verification program further comprises:
setting the working states of the hydrostatic test pump and a power control cabinet connected with the diesel generator according to the preset verification program;
acquiring pump test data of the hydraulic test pump and a cabinet feedback signal of the power control cabinet;
and judging whether the diesel generator passes safety verification or not according to the pump test data and the cabinet feedback signal.
8. The safety verification method for the nuclear power plant hydraulic test pump turbine generator set system equipment as claimed in claim 1, wherein the safety verification for the diesel generator according to a preset verification program further comprises:
setting the working state of an RCV control valve connected with the diesel generator according to the preset verification program, wherein the RCV is a chemical and volume control system;
checking whether the RCV control valve is in a preset first control position.
9. The safety verification method for the nuclear power plant hydraulic test pump turbine generator set system equipment as claimed in claim 1, wherein the safety verification for the diesel generator according to a preset verification program further comprises:
setting the working state of an RIS control valve connected with the diesel generator according to the preset verification program, wherein the RIS is a safe injection system;
checking whether the RIS control valve is in a preset second control position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010055210.6A CN111237057B (en) | 2020-01-17 | 2020-01-17 | Safety verification method for nuclear power station hydrostatic test pump turbine generator set system equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010055210.6A CN111237057B (en) | 2020-01-17 | 2020-01-17 | Safety verification method for nuclear power station hydrostatic test pump turbine generator set system equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111237057A CN111237057A (en) | 2020-06-05 |
| CN111237057B true CN111237057B (en) | 2021-02-26 |
Family
ID=70864086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010055210.6A Active CN111237057B (en) | 2020-01-17 | 2020-01-17 | Safety verification method for nuclear power station hydrostatic test pump turbine generator set system equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111237057B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1193891A (en) * | 1997-09-22 | 1999-04-06 | Hitachi Ltd | Internal pump system |
| CN102195334B (en) * | 2011-05-20 | 2012-12-05 | 中国广东核电集团有限公司 | Method and system for improving reliability of emergency power supplies of nuclear power plant |
| CN202111518U (en) * | 2011-05-20 | 2012-01-11 | 中国广东核电集团有限公司 | Emergency power supply applied in nuclear power station hydraulic pressure test system and monitoring system after accident |
| CN102820069A (en) * | 2011-06-10 | 2012-12-12 | 中广核工程有限公司 | Nuclear power station unit control method and system |
| CN202583422U (en) * | 2012-04-09 | 2012-12-05 | 中科华核电技术研究院有限公司 | Nuclear power plant emergency diesel generator set on-line verification device |
| CN104167964B (en) * | 2014-08-12 | 2016-08-17 | 广西防城港核电有限公司 | The control system of a kind of hydraulic testpump diesel emergency generating set and method |
| CN106504809B (en) * | 2016-10-19 | 2018-06-22 | 广东核电合营有限公司 | A kind of method and device for preventing nuclear-power reactor accident shutdown |
-
2020
- 2020-01-17 CN CN202010055210.6A patent/CN111237057B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111237057A (en) | 2020-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100931136B1 (en) | Digital reactor protection system and its driving method with tripled wp and cpu and initiation circuit structure of 2/3 logic | |
| CN101290342B (en) | Hydroelectric units black start-up ability verification test method | |
| CN111008485B (en) | Neural network-based multi-parameter life prediction method for three-phase alternating current asynchronous motor | |
| CN102520354B (en) | Asynchronous motor test system based on labview platform | |
| CN102119256A (en) | Power generation | |
| CN206211665U (en) | A kind of straight-flow system | |
| CN112467831A (en) | Remote-program online capacity check management system for storage battery pack | |
| CN103163397A (en) | Universal analog quantity plate detection system for nuclear plant and method | |
| CN101436788A (en) | Black startup method for non standby station service supply hydroelectric station hydro-turbo generator set | |
| CN113063599B (en) | Method for testing emergency starting reliability of important oil system of steam turbine of thermal power unit | |
| CN111237057B (en) | Safety verification method for nuclear power station hydrostatic test pump turbine generator set system equipment | |
| CN112305391A (en) | Electromagnetic valve performance testing method for AP1000 main steam and main water supply isolation valve | |
| JPH1020930A (en) | Preventive maintenance method | |
| CN111929579A (en) | Generator online fault diagnosis method and device and computer device | |
| CN111679192B (en) | Rotor fault off-line detection device of pumped storage generator motor | |
| CN108923629A (en) | A kind of high voltage crossing control system and method for high-voltage frequency converter | |
| CN208126192U (en) | A kind of controller for electric vehicle full-automatic test system | |
| CN111624486A (en) | Online insulation detection method and device for generator of doubly-fed wind turbine generator | |
| CN212341395U (en) | Management device for whole set starting test of generator | |
| CN106410767B (en) | A kind of direct current 100Hz guard methods and system | |
| CN110401309A (en) | A method of analysis DC motor control system failure cause | |
| CN104198952A (en) | Reliability validation method of 6.6KV mobile emergency power source of nuclear power station | |
| CN103475089A (en) | Mis-locking prevention monitoring system | |
| CN214403843U (en) | Automatic working condition identification device for large hydroelectric generating set | |
| CN113985309B (en) | Performance test system and method for security power supply system of power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |