CN111477367A - Be applied to intelligent calibration device that nuclear power plant boron concentration monitoring was said - Google Patents
Be applied to intelligent calibration device that nuclear power plant boron concentration monitoring was said Download PDFInfo
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- CN111477367A CN111477367A CN202010479914.6A CN202010479914A CN111477367A CN 111477367 A CN111477367 A CN 111477367A CN 202010479914 A CN202010479914 A CN 202010479914A CN 111477367 A CN111477367 A CN 111477367A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
- G21C17/022—Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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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 provides an intelligent calibration device applied to a boron concentration monitoring channel of a nuclear power plant, which comprises a shell, wherein a display screen control module is arranged on the outer side surface of the shell, a boron solution water tank is arranged in the shell, a liquid feeding opening, a stirring device and a temperature detection device are arranged at the top of the boron solution water tank, an electric heating wire is arranged inside the boron solution water tank, a boron solution inlet connecting pipeline, a diluent bottle, a sampling pipeline and a boron solution outlet connecting pipeline are arranged outside the boron solution water tank, the diluent bottle and the boron solution water tank are connected together through a diluent pipeline, a diluent metering pump is arranged on the diluent pipeline, a boron solution metering pump and an electric three-way ball valve are arranged on the boron solution outlet connecting pipeline, and a waste liquid discharge connecting pipeline is arranged on the electric three-way ball valve. The invention can realize the rapid and continuous calibration of the boron concentration monitoring channel, can adjust the temperature of the boron solution according to the working condition and ensure the uniformity of the solution, and effectively solves the defects of manual calibration and manual sampling analysis.
Description
Technical Field
The invention belongs to the technical field of boron concentration detection channels of pressurized water reactor nuclear power plants, and relates to an intelligent calibration device applied to a boron concentration monitoring channel of a nuclear power plant.
Background
The reactor power control is realized by adjusting control rods and boron concentration, and the reactor power changes obviously when the control rods are adjusted, so that when the reactor runs stably, the reactor power is adjusted mainly by adding boric acid solution with certain concentration into the loop. On one hand, boric acid or diluted boric acid is required to be added into cooling water of a reactor primary loop to realize compensation control of reactor reactivity during startup, operation or power regulation of the reactor so as to flatten reactor power and increase burnup, and on the other hand, boric acid is required to be added to keep an active region in a subcritical state for a long time when the reactor is shut down, refurbished and overhauled. Continuous on-line monitoring of boron concentration in a loop of a reactor is very important work because water in the loop needs to be purified continuously through an ion exchanger and the possibility of boric acid loss exists, and a boron concentration monitoring device is indispensable to safe, stable and economic operation of a nuclear power station.
Conventionally, the boron concentration monitoring channel is adopted for online analysis of boron concentration of a primary circuit coolant of a pressurized water reactor nuclear power plant, and along with the change of the working condition of a primary circuit of the nuclear power plant, the problem that the online analysis concentration and the offline manual sampling analysis deviation are large can occur in the monitoring channel, and the monitoring channel needs to be calibrated regularly. The existing calibration device is characterized in that a boron concentration detection channel is connected with a boron solution water tank through a circulating pump, and the boron concentration in the water tank is manually adjusted to carry out calibration. However, the current device has the defects of incapability of continuous calibration, non-uniform concentration of boron solution in a boron solution water tank, lack of temperature control, low automation degree and the like. The intelligent calibration device applied to the boron concentration monitoring channel of the nuclear power plant is researched and invented in order to meet the requirements of the boron concentration detection channel on a solution and solve the problems that the calibration time is long, the concentration is adjusted manually and the like.
Disclosure of Invention
The invention aims to provide an intelligent calibration device applied to a boron concentration monitoring channel of a nuclear power plant, so that the problems that the existing device cannot carry out continuous calibration, the concentration of a boron solution is not uniform, the temperature control is lacked, the automation degree is low and the like are solved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a be applied to intelligent calibration device that nuclear power plant boron concentration monitoring said, which comprises a housin, be equipped with display screen control module on the lateral surface of casing, be equipped with boron solution water tank in the casing, the top of boron solution water tank is equipped with liquid feeding opening, agitating unit and temperature-detecting device, and the inside of boron solution water tank is equipped with electric heating wire, and the outside of boron solution water tank is equipped with boron solution access connection pipeline, diluent bottle, sample pipeline, boron solution outlet connection pipeline, the diluent bottle links together through diluent pipeline with the boron solution water tank, be equipped with the diluent measuring pump on the diluent pipeline, be equipped with boron solution measuring pump and electronic tee bend ball valve on the boron solution outlet connection pipeline, set up waste liquid discharge connecting pipeline on the electronic tee bend ball valve.
The further technical proposal is that the top of the boron solution water tank is also provided with a magnetic turning type liquid level display.
The further technical proposal is that a bracket for supporting the diluent bottle is arranged on the outer side of the shell.
The further technical scheme is that a sampling valve is arranged at the tail end of the sampling pipeline.
The further technical scheme is that the tail ends of the boron solution inlet connecting pipeline, the boron solution outlet connecting pipeline and the waste liquid discharge connecting pipeline are respectively provided with a boron solution inlet quick connector, a boron solution outlet quick connector and a waste liquid discharge quick connector.
Compared with the prior art, the invention has the following beneficial effects:
the intelligent calibration device applied to the boron concentration monitoring channel of the nuclear power plant has the advantages of automation, modularization, high universality and the like, can realize the rapid and continuous calibration of the boron concentration monitoring channel, can adjust the temperature of a boron solution according to working conditions and ensure the uniformity of the solution, effectively overcomes the defects of manual calibration and manual sampling analysis, and realizes the automation and the continuous high efficiency of the calibration of the boron concentration detection channel.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. an electric heating wire; 2. a liquid feeding opening; 3. a stirring paddle; 4. an electric motor; 5. a temperature detection device; 6. a magnetic flip type liquid level display; 7. a diluent metering pump; 8. a boron solution inlet quick connector; 9. a diluent bottle; 10. a waste liquid discharge quick connector; 11. a boron solution outlet quick connector; 12. a sampling valve; 13. an electric three-way ball valve; 14. a boron solution metering pump; 15. a display screen control module; 16. a boron solution tank; 17. a housing.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
An intelligent calibration device applied to a boron concentration monitoring channel of a nuclear power plant comprises a shell 17, wherein a cabinet door is arranged on the outer side surface of the shell 17 and can be opened and closed, a display screen control module 15 is fixedly arranged on the cabinet door, specifically, a display screen in the display screen control module 15 is installed on the cabinet door and is provided with a touch screen and integrated boron meter calibration program software, and the display screen control module 15 is used for controlling the operation of an electric heating wire 1, a motor 4, a temperature detection device 5, a diluent metering pump 7, an electric three-way ball valve 13 and a boron solution metering pump 14 and displaying information such as temperature curves; a boron solution water tank 16 is arranged above the inside of the shell 17 and used for storing boron solution, a liquid adding opening 2, a stirring device and a temperature detection device 5 are arranged on the left side of the top of the boron solution water tank 16, the liquid adding opening 2 is used for quickly adding boron solution with a certain concentration into the boron solution water tank 16 before calibration, the stirring device comprises a stirring paddle 3 and a motor 4, the stirring paddle 3 is positioned in the boron solution water tank 16 and connected with the motor 4 through a transmission rod, the motor 4 is fixed in the middle position of the top of the boron solution water tank 16 and used for driving the stirring paddle 3 to rotate at a constant speed, the rotating speed can be changed by adjusting different powers, the boron solution in the boron solution water tank 16 is stirred at a constant rotating speed during calibration, the uniformity of the boron solution in the water tank is kept, the temperature detection device 5 is fixed on the right side position of the top of the boron solution water tank 16 and used, feeding back information to the display screen control module 15 to adjust the electric heating wire 1 to keep the solution temperature stable; an electric heating wire 1 is arranged inside the boron solution water tank 16, the electric heating wire 1 is fixed on the left side inside the boron solution water tank 16 and used for maintaining the temperature of the solution inside the boron solution water tank 16 constant, the power is adjusted by a feedback signal of a temperature detection device 5, a magnetic turning type liquid level display 6 is further arranged on the top of the boron solution water tank 16, and the magnetic turning type liquid level display 6 is fixed on the right side of the top of the boron solution water tank 16, is positioned on the right side of the temperature detection device 5 and used for reflecting the liquid level of the solution in the water tank in real time;
the boron solution metering pump comprises a boron solution tank 16, a boron solution inlet connecting pipeline, a diluent liquid bottle 9, a sampling pipeline and a boron solution outlet connecting pipeline, wherein the boron solution inlet connecting pipeline, the sampling pipeline and the boron solution outlet connecting pipeline are made of stainless steel, specifically, the boron solution inlet connecting pipeline penetrates through a shell 17 to be connected with a boron solution tank 16 inside the shell 17, the tail end of the boron solution inlet connecting pipeline is provided with a boron solution inlet quick connector 8, when a boron solution metering pump 14 pumps a boron solution to pass through a boron meter, the boron solution is returned to the boron solution tank 16 through the boron solution inlet quick connector 8, the diluent liquid bottle 9 is arranged outside the shell 17 and below the boron solution inlet connecting pipeline, the diluent liquid bottle 9 is used for storing enough demineralized water, a support for supporting the diluent liquid bottle 9 is welded below the diluent liquid bottle 9, the diluent liquid tank 9 and the boron solution tank 16 are connected together through a diluent liquid pipeline, a diluent liquid metering pump 7 is arranged on the diluent liquid solution tank, a diluent liquid metering pump 7 is used for adding a certain volume of demineralized water in the diluent liquid bottle 9 into the boron solution tank 16 under the action of the diluent liquid bottle, further, the boron solution tank is connected with the boron solution tank 16 through a diluent liquid tank, the boron solution metering pump is arranged in the boron solution tank, the boron solution metering pump, the boron solution tank is arranged in the boron solution tank, the boron solution metering pump 16, the boron solution tank is arranged under the boron solution tank, the boron solution outlet of the boron solution metering pump 16, the boron solution metering pump 16, the boron solution metering pump is connected with the boron solution tank, the boron solution tank is arranged under the boron solution outlet of the boron solution metering pump, the boron solution tank is arranged under the boron solution outlet of the boron solution metering pump, the boron solution metering tank, the boron solution metering pump is arranged in the boron solution tank, the boron solution metering pump is arranged under the boron solution tank, the.
The specific use mode and function of the embodiment are as follows:
before the system begins to be calibrated, sufficient boric acid solution is added into the boron solution water tank 16 through the liquid adding opening 2, the current liquid level in the boron solution water tank 16 is displayed through the magnetic turning type liquid level display 6, a signal is fed back to the display screen control module 15 through the temperature detection device 5 to adjust the power of the electric heating wire 1, so that the stability of the temperature of the solution is maintained, and the rotation speed of the motor 4 is adjusted through the display screen control module 15 to ensure the uniformity of the boron solution in the boron solution water tank 16. After the calibration is started, the boron solution metering pump 14 and the electric three-way ball valve 13 are opened, the solution in the boron solution water tank 16 flows into the boron solution outlet quick connector 11 through the electric three-way ball valve 13 under the action of the boron solution metering pump 14, returns to the boron solution water tank 16 through the boron solution inlet quick connector 8 after passing through a boron meter (boron concentration monitoring channel) connected with the boron solution outlet quick connector 11, finishes the calibration of the boron solution at the current concentration, displays temperature information and progress completion information to the display screen control module 15 for display, and can also be transmitted to a remote terminal or a distributed control system, the solution in the boron solution water tank 16 flows a certain volume of solution into a waste liquid discharge connecting pipeline through the electric three-way ball valve 13 under the action of the boron solution metering pump 14 and is discharged through the waste liquid discharge quick connector 10, and a certain volume of demineralized water in the diluent bottle 9 is added into the boron solution water tank 16 under the action of the diluent metering pump 7, thereby completing the dilution of the boron solution. The dilution completion information is displayed in the display screen control module 15, meanwhile, the system is ready to carry out the next group of calibration processes, after the next group of calibration is completed, solution with a certain volume flows into the waste liquid discharge connecting pipeline through the electric three-way ball valve 13 and is discharged through the waste liquid discharge quick connector 10, the desalted water with a certain volume in the diluent bottle 9 is added into the boron solution water tank 16 under the action of the diluent metering pump 7, and therefore the solution in the boron solution water tank 16 is slowly diluted in a reciprocating mode until all calibration is completed.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the present invention, and those skilled in the art can make various changes and modifications to the embodiments without departing from the spirit and scope of the present invention.
The protection scope of the present invention should be subject to the definition of the claims.
Claims (5)
1. The utility model provides an intelligence calibration device for nuclear power plant boron concentration monitoring way which characterized in that: the novel boron solution water tank comprises a housing, be equipped with display screen control module on the lateral surface of casing, be equipped with boron solution water tank in the casing, the top of boron solution water tank is equipped with liquid feeding opening, agitating unit and temperature-detecting device, and the inside of boron solution water tank is equipped with electric heating wire, and the outside of boron solution water tank is equipped with boron solution access connection pipeline, diluent bottle, sample pipeline, boron solution exit linkage pipeline, the diluent bottle links together through diluent pipeline with the boron solution water tank, be equipped with the diluent measuring pump on the diluent pipeline, be equipped with boron solution measuring pump and electronic tee bend ball valve on the boron solution exit linkage pipeline, set up waste liquid discharge connecting pipe on the electronic tee bend ball valve.
2. The intelligent calibration device applied to the boron concentration monitoring channel of the nuclear power plant as claimed in claim 1, wherein: and the top of the boron solution water tank is also provided with a magnetic turning type liquid level display.
3. The intelligent calibration device applied to the boron concentration monitoring channel of the nuclear power plant as claimed in claim 1, wherein: the outer side of the shell is provided with a bracket for supporting the diluent bottle.
4. The intelligent calibration device applied to the boron concentration monitoring channel of the nuclear power plant as claimed in claim 1, wherein: and the tail end of the sampling pipeline is provided with a sampling valve.
5. The intelligent calibration device applied to the boron concentration monitoring channel of the nuclear power plant as claimed in claim 1, wherein: the tail ends of the boron solution inlet connecting pipeline, the boron solution outlet connecting pipeline and the waste liquid discharge connecting pipeline are respectively provided with a boron solution inlet quick joint, a boron solution outlet quick joint and a waste liquid discharge quick joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010479914.6A CN111477367A (en) | 2020-05-29 | 2020-05-29 | Be applied to intelligent calibration device that nuclear power plant boron concentration monitoring was said |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010479914.6A CN111477367A (en) | 2020-05-29 | 2020-05-29 | Be applied to intelligent calibration device that nuclear power plant boron concentration monitoring was said |
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| CN111477367A true CN111477367A (en) | 2020-07-31 |
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| CN202010479914.6A Pending CN111477367A (en) | 2020-05-29 | 2020-05-29 | Be applied to intelligent calibration device that nuclear power plant boron concentration monitoring was said |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113409895A (en) * | 2021-06-23 | 2021-09-17 | 中国核动力研究设计院 | Man-machine interaction method and device for boron meter chemical titration |
-
2020
- 2020-05-29 CN CN202010479914.6A patent/CN111477367A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113409895A (en) * | 2021-06-23 | 2021-09-17 | 中国核动力研究设计院 | Man-machine interaction method and device for boron meter chemical titration |
| CN113409895B (en) * | 2021-06-23 | 2023-04-11 | 中国核动力研究设计院 | Man-machine interaction method and device for boron meter chemical titration |
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