CN218497793U - Flow measuring system for pressurized water reactor coolant - Google Patents
Flow measuring system for pressurized water reactor coolant Download PDFInfo
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- CN218497793U CN218497793U CN202221704779.1U CN202221704779U CN218497793U CN 218497793 U CN218497793 U CN 218497793U CN 202221704779 U CN202221704779 U CN 202221704779U CN 218497793 U CN218497793 U CN 218497793U
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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
Abstract
The utility model discloses a pressurized water reactor coolant flow measurement system, include: the steam generator and the main pump are connected through a transition section pipeline, and an inlet of the main pump is connected with the steam generation steam; a first measurement assembly disposed on the transition section pipeline; a second measuring assembly, a portion of which is disposed on an intake line of the main pump and another portion of which is disposed on an outlet line of the main pump; the controller is used for judging whether the flow of the coolant is normal or not according to the feedback information of the first measuring component and the feedback information of the second measuring component. The utility model discloses a measuring method that two kinds of modes combined together, the flow information that two kinds of methods obtained in the operation corrects each other, can eliminate common cause trouble, reduces protection system and refuses rate of action and mistake rate of action.
Description
Technical Field
The utility model relates to a nuclear power field, in particular to pressurized water reactor coolant flow measurement system.
Background
The current method for measuring the coolant flow of the pressurized water reactor basically measures the pressure difference of an inlet and an outlet of a main pump or the pressure difference of the inner side and the outer side of a transition section elbow of a main pipeline and then measures the pressure difference according to a formula Q = K Δ p 1/2 The flow rate of the coolant system is calculated. The coolant flow is one of the important parameters of the RCS and is important for the operation safety of the nuclear power plant, and when the flow of the coolant is obtained by only adopting one measuring method, common cause faults can occur, and the operation safety of the nuclear power plant is seriously influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a pressurized water reactor coolant flow measurement system.
Specifically, the method comprises the following technical scheme:
a pressurized water reactor coolant flow measurement system comprising:
the steam generator and the main pump are connected through a transition section pipeline, and an inlet of the main pump is connected with the steam generation steam;
a first measurement assembly disposed on the transition section pipeline;
a second measuring assembly, a portion of which is disposed on an intake line of the main pump and another portion of which is disposed on an outlet line of the main pump;
the controller is used for judging whether the flow of the coolant is normal or not according to the feedback information of the first measuring component and the feedback information of the second measuring component.
Preferably, the controller comprises a calculating module and a judging module;
the calculating module is used for obtaining a first flow value according to the feedback information of the first measuring component and obtaining a second flow value according to the feedback information of the second measuring component, and the calculating module is used for making a difference between the first flow value and the second flow value and obtaining a flow difference value;
the judgment module is used for comparing the flow difference value with the reference flow value, and is used for judging whether the flow of the coolant is normal or not according to the comparison result of the flow difference value and the reference flow value.
Preferably, the calculation module obtains a plurality of the first flow values and a plurality of the second flow values;
the calculation module is configured to determine a median first flow value from a plurality of the first flow values and a median second flow value from a plurality of the second flow values;
the calculation module is used for obtaining the flow difference value by subtracting the first flow median value and the second flow median value.
Preferably, the transition section pipeline comprises an elbow;
the first measuring assembly is arranged at the bent part of the bent pipe, the bent pipe comprises an inner pipe wall and an outer pipe wall, and the inner pipe wall and the outer pipe wall are arranged concentrically;
the first measuring assembly is respectively connected with the middle part of the inner side pipe wall and the middle part of the outer side pipe wall.
Preferably, the first measuring assembly comprises a first measuring member and a second measuring member;
the first measuring part is arranged on the inner pipe wall, and the second measuring part is arranged on the outer pipe wall;
the first measuring part and the second measuring part are respectively electrically connected with the controller;
the controller is used for obtaining a first flow value according to the feedback information of the first measuring part and the feedback information of the second measuring part.
Preferably, a plurality of second measuring parts are arranged, and the plurality of second measuring parts are arranged on the outer side pipe wall;
the plurality of second measuring parts are electrically connected with the controller respectively, and the controller is used for obtaining a plurality of first flow values according to the feedback information of the first measuring part and the feedback information of the plurality of second measuring parts.
Preferably, the second side of the elbow is provided with a main measuring pipe and a branch measuring pipe;
the number of the measuring branch pipes is multiple;
one end of the measuring main pipe is connected with the wall surface of the outer side pipe wall, the other end of the measuring main pipe is connected with one end of the measuring branch pipe respectively, the other end of the measuring branch pipe is connected with the second measuring part respectively, and the measuring branch pipes and the second measuring parts are arranged in a one-to-one correspondence mode.
Preferably, the second measuring assembly comprises a third measuring member and a fourth measuring member;
the third measuring part is arranged on an inlet pipeline of the main pump, the fourth measuring part is arranged on an outlet pipeline of the main pump, the third measuring part and the fourth measuring part are both electrically connected with the controller, and the controller obtains a second flow value according to feedback information of the third measuring part and feedback information of the fourth measuring part.
Preferably, a plurality of third measuring parts are provided, and a plurality of fourth measuring parts are provided;
the third measuring pieces and the fourth measuring pieces are arranged in a one-to-one correspondence manner;
the plurality of third measuring parts and the plurality of fourth measuring parts are respectively electrically connected with the controller, and the controller obtains a plurality of second flow values according to the feedback information of the plurality of third measuring parts and the feedback information of the plurality of fourth measuring parts.
Preferably, the pressurized water reactor cooling and flow measuring system comprises an alarm;
the alarm is electrically connected with the controller;
the controller is used for controlling the alarm to give an alarm when the flow of the coolant is abnormal.
The utility model provides a technical scheme's beneficial effect includes at least:
the utility model discloses a set up the flow information that first measuring subassembly is used for acquireing the coolant of the changeover portion pipeline of flowing through, the second measuring subassembly is used for acquireing the flow information of the coolant of the main pump of flowing through, and the controller judges whether normal after comparing the flow of coolant with the flow information of first measuring subassembly feedback and the flow information of second measuring subassembly feedback, the utility model discloses a measuring method that two kinds of modes combined together, the flow information that two kinds of methods obtained in the operation corrects each other, can eliminate altogether because of the trouble, reduces protection system and refuses the rate and the mistake rate.
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 description of the embodiments 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 without creative efforts.
FIG. 1 is a schematic diagram of a coolant system according to the present invention;
FIG. 2 is a schematic view of the structure of the elbow pipe of the present invention;
FIG. 3 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 2 according to the present invention;
fig. 4 is the flow measurement flow diagram of the present invention.
The reference numerals in the figures denote:
100-pressurized water reactor; 200-a steam generator; 300-main pump; 400-cold section pipeline; 500-hot section piping; 600-transition section pipeline; 610-bending a pipe; 611-inner tube wall; 612-outer vessel wall; 613-measurement master; 614-measuring branch pipe; 700-a first measurement assembly; 710-a first measuring member; 720-a second measuring member; 800-a second measurement assembly; 810-a third measuring member; 820-fourth measurement member.
With the above figures, certain embodiments of the present invention have been shown and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Before further detailed description of the embodiments of the present invention, terms of orientation in the embodiments of the present invention, such as "upper portion", "lower portion" and "side portion", are not intended to limit the scope of the present invention, based on the orientation shown in fig. 1.
In order to make the technical solutions and advantages of the present invention clearer, the following will make a detailed description of embodiments of the present invention with reference to the accompanying drawings.
This embodiment describes a pressurized water reactor coolant flow measuring system, including: the steam generator 200 and the main pump 300, wherein the inlet of the main pump 300 is connected with the steam generator 200 through a transition section pipeline 600; a first gauge assembly 700, first gauge assembly 700 disposed on transition section pipeline 600; a second measuring unit 800, a portion of the second measuring unit 800 being disposed on an inlet line of the main pump 300, another portion of the second measuring unit 800 being disposed on an outlet line of the main pump 300; and the controller, the first measuring assembly 700 and the second measuring assembly 800 are respectively electrically connected with the controller, and the controller is used for judging whether the flow of the coolant is normal or not according to the feedback information of the first measuring assembly 700 and the feedback information of the second measuring assembly 800.
Further, as shown in fig. 1, the coolant system includes a pressurized water reactor 100, a steam generator 200, and a main pump 300, an outlet of the main pump 300 is connected to the pressurized water reactor 100 through a cold leg pipe 400, the pressurized water reactor 100 is connected to the steam generator 200 through a hot leg pipe 500, the steam generator 200 is connected to an inlet of the main pump 300 through a transition leg pipe 600, and coolant is forcibly circulated among the pressurized water reactor 100, the hot leg pipe 500, the steam generator 200, the transition leg pipe 600, the main pump 300, and the cold leg pipe 400 in a direction indicated by an arrow.
Further, a first measuring assembly 700 is provided on the transition duct 600 for obtaining a pressure difference Δ p across the transition duct 600 when a coolant flows through the transition duct 600, and then the controller uses the formula Q = K × Δ p 1/2 The flow rate of the coolant system is calculated. A second measuring unit 800 is provided on the inlet line of the main pump 300 and the outlet line of the main pump 300 for acquiring a pressure difference Δ p between the inlet side and the outlet side of the main pump 300 when the coolant flows through the main pump 300, and then the controller uses the formula Q = K × Δ p 1/2 The flow rate of the coolant system is calculated. It is understood that in this embodiment Q refers to the flow rate of the coolant, K is the flow coefficient, and is a constant, and Δ p is the pressure difference.
Further, in this embodiment, a measurement mode combining two modes is adopted, and in operation, the flow value obtained by the controller according to the feedback information of the first measurement component 700 and the flow value obtained by the controller according to the second measurement component 800 are mutually calibrated, so that common cause faults can be eliminated, the rejection rate and the malfunction rate of the protection system are reduced, and the measurement accuracy is improved.
Preferably, the controller comprises a calculating module and a judging module; a calculating module, configured to obtain a first flow value according to the feedback information of the first measuring assembly 700, obtain a second flow value according to the feedback information of the second measuring assembly 800, and perform a difference between the first flow value and the second flow value to obtain a flow difference value; the judgment module is used for comparing the flow difference value with the reference flow value, and judging whether the flow of the coolant is normal or not according to the comparison result of the flow difference value and the reference flow value.
Further, as shown in fig. 1 to 4, the first flow rate value in this embodiment is M1, and the second flow rate value is M2. Referring to fig. 4, the present embodiment uses the pressure difference Δ p across the feedback transition line 600 of the first measurement assembly 700, and then the calculation module uses the formula Q = K Δ p 1/2 A first flow value M1 of the coolant system is calculated. The second measuring unit 800 feeds back the pressure difference Δ p between the inlet side and the outlet side of the main pump 300, and the calculating module then calculates the difference Δ p according to the formula Q = K ×. Δ p 1/2 A second flow value M2 of the coolant system is calculated. Then, the calculating module performs a difference between the first flow value M1 and the second flow value M2 to obtain a flow difference, and it can be understood that the embodiment is directed to a case where only one first flow value M1 and one second flow value M2 are obtained.
Further, referring to fig. 4, the determining module compares the flow difference value with the reference flow value, if the flow difference value is greater than the reference flow value, the determining module determines that the coolant flow in the system is abnormal, and if the flow difference value is less than or equal to the reference flow value, the determining module determines that the coolant flow in the system is normal.
Further, in this embodiment, the flow difference value and the reference flow value may be specific flow values, or may be in a percentage form, that is, the flow difference value is a percentage of the difference between the first flow value M1 and the second flow value M2 in the second flow value M2, and the reference flow value is also in a percentage form. For example, if the flow difference is 5%, that is, the first flow value M1 is 5% greater than the second flow value M2, and the reference flow value is 3%, the determining module determines that the coolant flow in the system is abnormal because the flow difference is 5% greater than the reference flow value 3%.
Preferably, the calculation module obtains a plurality of first flow values and a plurality of second flow values; the calculation module is used for determining a first flow median value according to a plurality of first flow values and determining a second flow median value according to a plurality of second flow values; the calculating module is used for obtaining a flow difference value by subtracting the first flow median value and the second flow median value.
Further, as shown in fig. 4, in this embodiment, the calculation module obtains a first flow value M1, a first flow value M1', and a first flow value M1 ", and the calculation module obtains a second flow value M2, a second flow value M2', and a second flow value M2", then the calculation module obtains a first flow median value by taking a median value of the first flow value M1, the first flow value M1', and the first flow value M1 ", and obtains a second flow median value by taking a median value of the second flow value M2, the second flow value M2', and the second flow value M2", at this time, the flow difference value is obtained by calculating the first flow median value and the second flow median value.
Preferably, transition piece conduit 600 includes elbow 610; the first measurement assembly 700 is disposed at a bend of the elbow 610, the elbow 610 includes an inner pipe wall 611 and an outer pipe wall 612, the inner pipe wall 611 and the outer pipe wall 612 are concentrically disposed; first measurement assembly 700 is coupled to a middle portion of inner tube wall 611 and a middle portion of outer tube wall 612, respectively.
Further, as shown in fig. 1 and 2, the first measurement assembly 700 measures the inside-outside pressure difference at the elbow 610. Because the turbulence degree of the coolant at the bent pipe 610 is high, the pressure difference between the inner side and the outer side is more obvious, and the data acquisition is more convenient. The elbow 610 is a right-angled elbow, an inlet side of the elbow 610 is connected to the steam generator 200, and an outlet side of the elbow 610 is connected to the main pump 300. Inner tube wall 611 refers to the side closest to the center of elbow 610, it being understood that the location where first measurement assembly 700 is attached to the middle of inner tube wall 611 is on the shortest arcuate wall connecting the inlet side of elbow 610 to the outlet side of elbow 610, and outer tube wall 612 refers to the side furthest from the center of elbow 610, it being understood that first measurement assembly 700 is attached to the middle of outer tube wall 612 is on the longest arcuate wall connecting the inlet side of elbow 610 to the outlet side of elbow 610. First measurement assembly 700 is coupled to a middle portion of inner tube wall 611 and a middle portion of outer tube wall 612, respectively, and it will be appreciated that an extension of a connecting line between a point of first measurement assembly 700 coupled to inner tube wall 611 and a point of first measurement assembly 700 coupled to outer tube wall 612 is a bisector of an axis of elbow 610, i.e., an angle between an extension of the connecting line between the two points and an axis on an inlet side of elbow 610 is equal to an angle between an extension of the connecting line between the two points and an axis on an outlet side of elbow 610.
Preferably, the first measuring assembly 700 includes a first measuring member 710 and a second measuring member 720; the first measuring member 710 is disposed on the inner tube wall 611 and the second measuring member 720 is disposed on the outer tube wall 612; the first measuring part 710 and the second measuring part 720 are respectively electrically connected with the controller; the controller is configured to obtain the first flow value according to the feedback information of the first measuring part 710 and the feedback information of the second measuring part 720.
Further, as shown in fig. 2 and 3, the first measuring member 710 and the second measuring member 720 are both pressure measuring members, the first measuring member 710 measures the pressure at the inner tube wall 611 during the flow of the coolant, the second measuring member 720 measures the pressure at the outer tube wall 612 during the flow of the coolant, the calculating module of the controller calculates the difference between the obtained pressure at the inner tube wall 611 and the obtained pressure at the outer tube wall 612 to obtain a pressure difference Δ p, and the calculating module further calculates the pressure difference Δ p according to the formula Q = K × Δ p and the pressure difference Δ p obtained by the difference calculating module 1/2 And calculating to obtain a first flow value M1.
Preferably, a plurality of second measuring members 720 are provided, and the plurality of second measuring members 720 are all provided on the outer tube wall 612; the second measuring parts 720 are electrically connected to a controller, and the controller is configured to obtain a plurality of first flow values according to the feedback information of the first measuring part 710 and the feedback information of the second measuring parts 720.
Further, as shown in fig. 2 and 3, three second measuring members 720 are provided, three pressure values at the outer tube wall 612 can be obtained by the three second measuring members 720, the pressure value at each outer tube wall 612 is different from the pressure value at the inner tube wall 611 obtained by the first measuring member 710, three pressure differences Δ p are obtained, and the calculating module further obtains the three pressure differences Δ p according to the pressure differences Δ p and the formula Q = K × Δ p 1/2 The first flow value M1, the first flow value M1', and the first flow value M1 ″ are obtained by calculation.
Preferably, a second side of the bent pipe 610 is provided with a main measuring pipe 613 and a branch measuring pipe 614; the measuring branch 614 is provided in plurality; one end of the main measuring pipe 613 is connected with the wall surface of the outer pipe wall 612, the other end of the main measuring pipe 613 is connected with one end of each of the plurality of branch measuring pipes 614, the other end of each of the plurality of branch measuring pipes 614 is connected with each of the plurality of second measuring parts 720, and the branch measuring pipes 614 and the second measuring parts 720 are arranged in a one-to-one correspondence manner.
Further, as shown in fig. 2 and 3, in order to ensure the accuracy of the pressure difference measurement at the elbow 610 and reduce the number of openings on the elbow 610, a hole is formed on the inner pipe wall 611 for installing the first measuring member 710, a hole is formed on the outer pipe wall 612 for installing the main measuring pipe 613, the other end of the main measuring pipe 613 is connected to three branch measuring pipes 614, and each branch measuring pipe 614 is connected to a second measuring member 720. The pressure values obtained by the three second measuring parts 720 flow through the same pipe wall at the same time from the coolant, and the accuracy of the data is improved by obtaining the three pressure values at the same time.
Preferably, the second measuring assembly 800 includes a third measuring member 810 and a fourth measuring member 820; the third measuring part 810 is disposed on an intake pipe of the main pump 300, the fourth measuring part 820 is disposed on an outlet pipe of the main pump 300, both the third measuring part 810 and the fourth measuring part 820 are electrically connected to the controller, and the controller obtains a second flow rate value according to feedback information of the third measuring part 810 and feedback information of the fourth measuring part 820.
Further, as shown in fig. 1, the second measurement assembly 800 may measure a pressure difference between an inlet side of the main pump 300 and an outlet side of the main pump 300. The third measuring member 810 is provided on the transition-section pipe 600 connected to the inlet of the main pump 300, and it will be appreciated that the third measuring member 810 is provided at a position not interfering with the position where the first measuring member 700 is provided, the third measuring member 810 is provided to measure the pressure value before the coolant enters the main pump 300, the fourth measuring member 820 is provided on the cold-section pipe 400 connected to the outlet of the main pump 300, and the fourth measuring member 820 is provided to measure the pressure value after the coolant exits the main pump 300. The calculation module in the controller makes a difference between the pressure value obtained by the third measuring part 810 and the pressure value obtained by the fourth measuring part 820 to obtain a pressure difference Δ p between the inlet side of the main pump 300 and the outlet side of the main pump 300, and then the calculation module obtains the pressure difference Δ p according to the pressure difference Δ p and a formula Q = K 1/2 The second flow value M2 is obtained by calculation.
Preferably, a plurality of third measuring members 810 and a plurality of fourth measuring members 820 are provided; the third measuring parts 810 and the fourth measuring parts 820 are arranged in a one-to-one correspondence; the third measuring parts 810 and the fourth measuring parts 820 are respectively electrically connected to the controller, and the controller obtains a plurality of second flow values according to the feedback information of the third measuring parts 810 and the feedback information of the fourth measuring parts 820.
Further, as shown in fig. 1, three third measuring parts 810 are provided, and three fourth measuring parts 820 are provided. The controller obtains a pressure value measured by the third measuring part 810 and a pressure value measured by the fourth measuring part 820, and obtains a pressure difference Δ p, so that the controller can obtain three pressure differences Δ p according to the pressure values measured by the three third measuring parts 810 and the pressure values measured by the three fourth measuring parts 820, and the calculating module further obtains the pressure difference Δ p according to the pressure difference Δ p and the formula Q = K Δ p 1/2 The second flow value M2, the second flow value M2' and the second flow value M2 ″ are obtained by calculation.
Preferably, the pressurized water reactor cooling and flow measuring system comprises an alarm; the alarm is electrically connected with the controller; the controller is used for controlling the alarm to give an alarm when the coolant flow is abnormal.
Furthermore, in the embodiment, the alarm is electrically connected with the judgment module in the controller, and the alarm is controlled to alarm when the judgment module judges that the flow of the coolant is abnormal, so that workers can find out the alarm condition in time, faults are discharged in time, the rejection rate and the misoperation rate of the protection system are reduced, and the safety performance of the nuclear power system is improved.
In the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A pressurized water reactor coolant flow measuring system, comprising:
the steam generator and the main pump are connected through a transition section pipeline, and an inlet of the main pump is connected with the steam generation steam;
a first measurement assembly disposed on the transition section conduit;
a second measuring assembly, a portion of which is disposed on an intake line of the main pump and another portion of which is disposed on an outlet line of the main pump;
and the controller is used for judging whether the flow of the coolant is normal or not according to the feedback information of the first measuring assembly and the feedback information of the second measuring assembly.
2. A pressurized water reactor coolant flow measuring system according to claim 1,
the controller comprises a calculation module and a judgment module;
the calculation module is used for obtaining a first flow value according to the feedback information of the first measurement assembly and obtaining a second flow value according to the feedback information of the second measurement assembly, and the calculation module is used for making a difference between the first flow value and the second flow value and obtaining a flow difference value;
the judgment module is used for comparing the flow difference value with the reference flow value, and is used for judging whether the flow of the coolant is normal or not according to the comparison result of the flow difference value and the reference flow value.
3. A pressurized water reactor coolant flow measuring system according to claim 2,
the calculation module obtains a plurality of the first flow values and a plurality of the second flow values;
the calculation module is configured to determine a median first flow value from a plurality of the first flow values and a median second flow value from a plurality of the second flow values;
the calculation module is used for obtaining the flow difference value by subtracting the first flow median value and the second flow median value.
4. Pressurized water reactor coolant flow measuring system according to claim 1,
the transition section pipeline comprises a bent pipe;
the first measuring assembly is arranged at the bent part of the bent pipe, the bent pipe comprises an inner pipe wall and an outer pipe wall, and the inner pipe wall and the outer pipe wall are arranged concentrically;
the first measuring assembly is respectively connected with the middle part of the inner side pipe wall and the middle part of the outer side pipe wall.
5. A pressurized water reactor coolant flow measuring system according to claim 4,
the first measuring assembly comprises a first measuring part and a second measuring part;
the first measuring part is arranged on the inner side pipe wall, and the second measuring part is arranged on the outer side pipe wall;
the first measuring part and the second measuring part are respectively electrically connected with the controller;
the controller is used for obtaining a first flow value according to the feedback information of the first measuring part and the feedback information of the second measuring part.
6. Pressurized water reactor coolant flow measuring system according to claim 5,
the number of the second measuring parts is multiple, and the second measuring parts are all arranged on the outer side pipe wall;
the plurality of second measuring parts are electrically connected with the controller respectively, and the controller is used for obtaining the plurality of first flow values according to the feedback information of the first measuring part and the feedback information of the plurality of second measuring parts.
7. A pressurized water reactor coolant flow measuring system according to claim 5,
a measuring main pipe and a measuring branch pipe are arranged on the second side of the bent pipe;
the number of the measuring branch pipes is multiple;
the measuring device is characterized in that one end of the measuring main pipe is connected with the wall surface of the outer side pipe wall, the other end of the measuring main pipe is connected with one end of the measuring branch pipe respectively, the other end of the measuring branch pipe is connected with the second measuring part respectively, and the measuring branch pipe and the second measuring part are arranged in a one-to-one correspondence mode.
8. A pressurized water reactor coolant flow measuring system according to claim 1,
the second measuring assembly comprises a third measuring part and a fourth measuring part;
the third measuring part is arranged on an inlet pipeline of the main pump, the fourth measuring part is arranged on an outlet pipeline of the main pump, the third measuring part and the fourth measuring part are electrically connected with the controller, and the controller obtains a second flow value according to feedback information of the third measuring part and feedback information of the fourth measuring part.
9. A pressurized water reactor coolant flow measuring system according to claim 8,
a plurality of third measuring parts are arranged, and a plurality of fourth measuring parts are arranged;
the third measuring piece and the fourth measuring piece are arranged in a one-to-one correspondence manner;
the plurality of third measuring parts and the plurality of fourth measuring parts are respectively electrically connected with the controller, and the controller obtains a plurality of second flow values according to the feedback information of the plurality of third measuring parts and the feedback information of the plurality of fourth measuring parts.
10. Pressurized water reactor coolant flow measuring system according to claim 1,
the pressurized water reactor cooling and flow measuring system comprises an alarm;
the alarm is electrically connected with the controller;
the controller is used for controlling the alarm to give an alarm when the flow of the coolant is abnormal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221704779.1U CN218497793U (en) | 2022-07-05 | 2022-07-05 | Flow measuring system for pressurized water reactor coolant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221704779.1U CN218497793U (en) | 2022-07-05 | 2022-07-05 | Flow measuring system for pressurized water reactor coolant |
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| CN218497793U true CN218497793U (en) | 2023-02-17 |
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| CN202221704779.1U Active CN218497793U (en) | 2022-07-05 | 2022-07-05 | Flow measuring system for pressurized water reactor coolant |
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