CN111997955A - Control rod hydraulic drive intermittent type formula operation return circuit and control rod drive equipment - Google Patents
Control rod hydraulic drive intermittent type formula operation return circuit and control rod drive equipment Download PDFInfo
- Publication number
- CN111997955A CN111997955A CN202010773302.8A CN202010773302A CN111997955A CN 111997955 A CN111997955 A CN 111997955A CN 202010773302 A CN202010773302 A CN 202010773302A CN 111997955 A CN111997955 A CN 111997955A
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- Prior art keywords
- control rod
- drive
- pressure
- branch
- outlet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/008—Reduction of noise or vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
- G21C7/12—Means for moving control elements to desired position
- G21C7/16—Hydraulic or pneumatic drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/615—Filtering means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/855—Testing of fluid pressure systems
-
- 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 embodiment of the invention provides a control rod hydraulic drive intermittent operation loop and control rod drive equipment, wherein the control rod hydraulic drive intermittent operation loop comprises: the inlet of the isolation valve is connected with a throat shrinking pipe penetrating through a pressure boundary of the pressure container, the outlet of the isolation valve is simultaneously connected with the inlet of the first driving branch and the inlet of the second driving branch, the outlet of the first driving branch and the outlet of the second driving branch are simultaneously connected with the inlet of the pressure water storage tank, and the outlet of the pressure water storage tank is connected with the combined valve of the control rod driving wire. First drive branch road and the parallelly connected setting of second drive branch road can the alternate use, satisfies demands such as equipment maintenance, pressure vessel pressure boundary accident isolation, can realize the intermittent type formula operation of circulating pump under built-in control rod drive wire normal operating condition through setting up pressure water storage tank, reduces the total vibration noise of circulating pump.
Description
Technical Field
The invention relates to the technical field of nuclear reactor engineering, in particular to a control rod hydraulic drive intermittent operation loop and control rod drive equipment.
Background
In the prior art, a drive mechanism of a built-in control rod drive technology is arranged in a high-temperature, high-pressure and irradiation environment in a reactor pressure vessel, and three hydraulic cylinders for lifting, transferring and clamping are adopted to sequentially drive the transfer and clamp two sets of pin claw mechanisms to move, so that the functions of stepping up, stepping down and dropping the control rod are realized.
Based on the working principle of a driving mechanism and the characteristics and operation experience of the built-in control rod driving wire of the advanced integrated small water reactor, the differential pressure and flow matched with the operation of the built-in control rod driving wire need to be provided, and the maintainability, reliability and safety functions of driving parameter adjustment, equipment maintenance, pressure boundary accident isolation of a pressure vessel and the like are realized.
The control rod water pressure driving loop in the prior art has the problems of inconvenient maintenance, insufficient reliability, incapability of realizing accident isolation and high overall noise of the circulating pump.
Disclosure of Invention
The embodiment of the invention provides a control rod hydraulic drive intermittent operation loop and control rod drive equipment, which are used for overcoming the defects that the control rod hydraulic drive loop in the prior art is inconvenient to maintain, insufficient in reliability, incapable of realizing accident isolation and large in overall noise of a circulating pump, realizing maintainability, reliability and safety functions of drive parameter adjustment, equipment maintenance, pressure vessel pressure boundary accident isolation and the like, and reducing the overall noise of the circulating pump.
The embodiment of the invention provides a control rod hydraulic drive intermittent operation loop, which comprises: the inlet of the isolation valve is connected with a throat shrinking pipe penetrating through a pressure boundary of the pressure container, the outlet of the isolation valve is simultaneously connected with the inlet of the first driving branch and the inlet of the second driving branch, the outlet of the first driving branch and the outlet of the second driving branch are simultaneously connected with the inlet of the pressure water storage tank, and the outlet of the pressure water storage tank is connected with the combined valve of the control rod driving wire.
According to one embodiment of the invention, the control rod water pressure drive intermittent operation circuit includes a first cut-off valve, a second cut-off valve, and a first circulation pump between the first cut-off valve and the second cut-off valve, and the second drive branch includes a third cut-off valve, a fourth cut-off valve, and a second circulation pump between the third cut-off valve and the fourth cut-off valve.
According to the control rod hydraulic drive intermittent operation loop provided by the embodiment of the invention, the first drive branch and the second drive branch are respectively provided with the filters, and the two filters are respectively positioned at the downstream of the first circulating pump and the downstream of the second circulating pump.
According to the control rod hydraulic drive intermittent operation loop provided by the embodiment of the invention, the outlet of the isolation valve is provided with a pressure container temperature measuring point, and a pipeline between the outlet of the pressure water storage tank and the combination valve of the control rod drive wire is provided with a combination valve temperature measuring point.
According to the control rod hydraulic drive intermittent operation loop disclosed by the embodiment of the invention, a circulating pump flow rate point is arranged on a pipeline between the outlet of the first drive branch and the outlet of the second drive branch to the inlet of the pressure water storage tank.
According to the control rod hydraulic drive intermittent operation loop provided by the embodiment of the invention, the pressure water storage tank is provided with a water storage tank pressure measuring point and a water storage tank liquid level measuring point.
According to the control rod hydraulic drive intermittent operation loop, a combination valve differential pressure measuring point is arranged on the control rod hydraulic drive intermittent operation loop and used for measuring the differential pressure between the outlet of the isolation valve and the inlet of the combination valve of the control rod drive line.
According to the control rod hydraulic drive intermittent operation loop provided by the embodiment of the invention, circulating pump differential pressure measuring points are arranged on the first drive branch and the second drive branch.
According to the control rod hydraulic drive intermittent operation loop provided by the embodiment of the invention, the first drive branch and the second drive branch are provided with filter differential pressure measuring points.
Embodiments of the present invention also provide a control rod drive apparatus comprising a control rod hydraulic drive intermittent operation loop as described in any one of the above.
The control rod hydraulic drive intermittent operation loop provided by the embodiment of the invention comprises the first drive branch and the second drive branch which are arranged in parallel, can be replaced for use, and meets the requirements of equipment maintenance, pressure vessel pressure boundary accident isolation and the like. Through setting up the intermittent type formula operation that pressure retaining jar can realize the circulating pump under built-in control rod drive wire normal operating condition, reduce the total vibration noise of circulating pump, simultaneously, when single circulating pump breaks down, it is less to the influence of control rod drive wire, improves stability.
The driving performance detection can be realized by arranging a pressure container temperature measuring point, a combination valve temperature measuring point and a combination valve differential pressure measuring point; the performance detection and equipment maintenance of the circulating pump and the filter are realized by arranging a circulating pump differential pressure measuring point, a filter differential pressure measuring point and a circulating pump flow measuring point; the control of the intermittent operation of the circulating pump can be realized by arranging the water storage tank pressure measuring point and the water storage tank liquid level measuring point on the pressure water storage tank.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a control rod hydraulic drive intermittent operation circuit provided by an embodiment of the invention.
Reference numerals:
1. a control rod drive wire; 2. a pressure vessel pressure boundary; 3. reducing the throat part; 4. a combination valve; 41. entering a differential pressure measuring point of the combination valve; 42. entering a combined valve temperature measuring point; 5. an isolation valve; 51. taking out a pressure vessel temperature measuring point; 6. a first drive branch; 61. a first shut-off valve; 62. a second stop valve; 63. a first circulation pump; 64. a filter; 65. measuring a differential pressure point of the circulating pump; 66. measuring a filter differential pressure point; 67. a circulating pump flow measurement point; 7. a second drive branch; 71. a third stop valve; 72. a fourth stop valve; 73. a second circulation pump; 8. a pressure water storage tank; 81. a water storage tank pressure measuring point; 82. and a water storage tank liquid level measuring point.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present invention, unless otherwise specified, "plurality", "plural groups" means two or more, and "several", "several groups" means one or more.
A control rod hydraulic drive intermittent operation circuit according to an embodiment of the present invention, which is applied to a control rod drive wire 1 and is capable of providing power for the operation of a hydraulic cylinder of the control rod drive wire 1, will be described with reference to fig. 1.
The control rod hydraulic drive intermittent operation loop specifically comprises: the device comprises an isolation valve 5, a first driving branch 6, a second driving branch 7 and a pressure water storage tank 8.
The inlet of the isolation valve 5 is connected with a throat shrinking pipe 3 which penetrates through a pressure boundary 2 of the pressure vessel, and water in the pressure vessel penetrates through the pressure boundary 2 of the pressure vessel through the throat shrinking pipe 3 and flows to the inlet of the isolation valve 5. The outlet of the isolation valve 5 is simultaneously connected with the inlet of the first driving branch 6 and the inlet of the second driving branch 7, and water flowing out of the isolation valve 5 can simultaneously enter the first driving branch 6 and the second driving branch 7.
The outlet of the first driving branch 6 and the outlet of the second driving branch 7 are simultaneously connected with the pressure water storage tank 8, and the first driving branch 6 and the second driving branch 7 can both supply water for the pressure water storage tank 8. The outlet of the pressure water storage tank 8 is connected with the combination valve 4 of the control rod drive wire 1, water enters the hydraulic cylinder of the control rod drive wire 1 through the combination valve 4, power is provided for the operation of the hydraulic cylinder, and therefore the lifting of the control rod is achieved.
In one embodiment, the first driving branch 6 comprises a first shut-off valve 61, a second shut-off valve 62 and a first circulation pump 63 between the first shut-off valve 61 and the second shut-off valve 62, and the second driving branch 7 comprises a third shut-off valve 71, a fourth shut-off valve 72 and a second circulation pump 73 between the third shut-off valve 71 and the fourth shut-off valve 72.
The first and second stop valves 61 and 62 can control the opening and closing of the liquid passage of the first driving branch 6 and the magnitude of the water flow rate in the first driving branch 6, and the third and fourth stop valves 71 and 72 can control the opening and closing of the liquid passage of the second driving branch 7 and the magnitude of the water flow rate in the second driving branch 7.
When the first and second stop valves 61 and 62 are closed and the third and fourth stop valves 71 and 72 are open, the water flowing out of the isolation valve 5 passes through only the second drive branch 7; when the third and fourth shut-off valves 71, 72 are closed and the first and second shut-off valves 61, 62 are open, the water flowing out of the isolation valve 5 passes only through the first drive branch 6.
The first driving branch 6 and the second driving branch 7 are in parallel connection and can be used in a mutual substitution mode, and when one of the first driving branch 6 and the second driving branch 7 breaks down, water can be supplied through the other branch, so that maintenance can be facilitated.
The first driving branch 6 or the second driving branch 7 supplies water to the pressure water storage tank 8, after the pressure water storage tank 8 reaches the pressure required by the operation of the control rod driving wire 1, the first driving branch 6 or the second driving branch 7 stops working, and when the pressure in the pressure water storage tank 8 is insufficient, the first driving branch 6 or the second driving branch 7 is started again to supply water. The intermittent operation of the first driving branch 6 and the second driving branch 7 is realized, the overall vibration noise of the circulating pump is reduced, and meanwhile, the maintainability, reliability and safety functions of driving parameter adjustment, equipment maintenance, accident isolation of the pressure vessel pressure boundary 2 and the like are realized.
In one embodiment, the first driving branch 6 and the second driving branch 7 are respectively provided with a filter 64, the two filters 64 are respectively arranged at the downstream of the first circulating pump 63 and the downstream of the second circulating pump 73, and the filters 64 can ensure that water in the first driving branch 6 and the second driving branch 7 does not contain impurities, thereby avoiding pipeline blockage and ensuring normal operation of the control rod hydraulic driving circuit.
In one embodiment, a pressure vessel temperature measuring point 51 is arranged at the outlet of the isolation valve 5, and a temperature measuring device is arranged at the pressure vessel temperature measuring point 51, so that the temperature of fluid entering a control rod hydraulic drive circuit can be measured in real time, and a reference is provided for temperature regulation.
And a temperature measuring point 42 of the inlet combination valve is arranged on a pipeline between the outlet of the pressure water storage tank 8 and the combination valve 4 of the control rod drive line 1. The temperature of the fluid entering the combining valve 4 can be measured by providing a temperature measuring device at the combining valve temperature measurement point 42.
In one embodiment, a circulation pump flow measurement point 67 is provided in the line between the outlet of the first drive branch 6 and the outlet of the second drive branch 7 to the inlet of the pressure reservoir 8. By providing a flow measuring device at the circulation pump flow measuring point 67, the total flow of the first drive branch 6 and the second drive branch 7 can be measured, and when only one of the first drive branch 6 and the second drive branch 7 has fluid flowing through it, the flow of the branch is measured by the flow measuring device provided at the circulation pump flow measuring point 67. The setting of the circulation pump flow rate point 67 can provide support for the control of the first circulation pump 63 and the second circulation pump 73.
In one embodiment, a pressure measuring point 81 is provided on the pressure reservoir 8, and a pressure detecting device is provided at the pressure measuring point 81 to obtain the water pressure in the pressure reservoir 8 in real time.
In one embodiment, a water storage tank liquid level measuring point 82 is arranged on the pressure water storage tank 8, and a liquid level detection device is arranged at the water storage tank liquid level measuring point 82, so that the water level in the pressure water storage tank 8 can be obtained in real time.
And the water quantity and the water pressure in the pressure water storage tank 8 can be acquired by acquiring the water pressure and the water level information in the pressure water storage tank 8. When water pressure or water level are not enough, the first circulating pump 63 or the second circulating pump 73 should be started to supply water to the pressure water storage tank 8, and when the water level and the water pressure in the pressure water storage tank 8 reach the requirement, the first circulating pump 63 and the second circulating pump 73 can be closed to stop supplying water. Thereby realizing the intermittent operation of the circulating pump.
The combination of the flow value obtained by the circulation pump flow measurement point 67, the pressure value obtained by the storage tank pressure measurement point 81 and the liquid level information obtained by the storage tank liquid level measurement point 82 can also provide a reference for equipment detection, for example, when the flow provided by the first circulation pump 63 and the second circulation pump 73 meets the requirement, but the pressure value obtained by the storage tank pressure measurement point 81 is insufficient and the liquid level obtained by the storage tank liquid level measurement point 82 is too low, a phenomenon of pipeline liquid leakage may occur, or the measurement of the measurement equipment is inaccurate, and the inspection needs to be performed.
And a combination valve differential pressure measuring point 41 is arranged on the control rod hydraulic drive intermittent operation loop, and the combination valve differential pressure measuring point 41 is used for measuring the differential pressure from the outlet of the isolation valve 5 to the inlet of the combination valve 4 of the control rod drive wire 1.
By arranging the pressure container temperature measuring point 51, the circulating pump flow measuring point 67 and the inlet combination valve differential pressure measuring point 41, the fluid temperature, the flow and the inlet and outlet differential pressure of the control rod hydraulic drive circuit can be measured, so that data reference is provided for circuit regulation and driving performance detection, and accurate regulation is realized.
In one embodiment of the present invention, circulation pump differential pressure measuring points 65 are provided on both the first driving branch 6 and the second driving branch 7 for respectively acquiring a differential pressure between an inlet and an outlet of the first circulation pump 63 and a differential pressure between an inlet and an outlet of the second circulation pump 73.
In one embodiment of the present invention, a filter differential pressure measuring point 66 is disposed on each of the first driving branch 6 and the second driving branch 7 for obtaining the inlet-to-outlet differential pressure of the filter 64 on each of the first driving branch 6 and the second driving branch 7.
The performance detection of the circulating pump and the filter 64 can be realized by arranging the circulating pump differential pressure measuring point 65, the filter differential pressure measuring point 66 and the circulating pump flow measuring point 67, and support is provided for equipment maintenance and adjustment of the first driving branch 6 and the second driving branch 7.
In an embodiment of the invention, the control rod driving device comprises the control rod hydraulic driving intermittent operation loop in any embodiment, has the advantages of accurate control, reliability and safety, convenience in equipment maintenance and low noise, and does not influence the normal use of the equipment in the maintenance process. The hydraulic drive system not only meets the engineering application of the control rod built-in hydraulic drive technology, but also provides reference for the engineering design of drive circuits in other industrial fields.
In one embodiment of the invention, an operation process of the control rod hydraulic drive intermittent operation loop is provided, when a control rod needs to be driven through the control rod drive wire 1, the isolation valve 5 is opened, the first drive branch 6 or the second drive branch 7 operates to pump and pressurize water flowing through the pressure vessel pressure boundary 2 of the isolation valve 5, the pressurized water enters the pressure water storage tank 8 to be stored, the water in the pressure water storage tank 8 has pressure meeting the operation requirement of the drive control rod drive wire 1, and when the control rod drive wire 1 needs to be operated, the pressure water storage tank 8 injects the water into the combination valve 4. The intermittent operation of the first driving branch 6 and the second driving branch 7 can be realized by arranging the pressure water storage pipe 8. The first drive branch 6 and the second drive branch 7 can be used instead, and in the example of the operation of the first drive branch 6, the third shut-off valve 71 and the fourth shut-off valve 72 are closed, the first shut-off valve 61 and the second shut-off valve 62 are opened, and water passes through only the first drive branch 6. When the first driving branch circuit is out of order, the first and second cutoff valves 61 and 62 may be closed, the third and fourth cutoff valves 71 and 72 may be opened, and the second circulation pump 73 may be operated to supply water, at which time the first driving branch circuit 6 may be repaired.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A control rod hydraulically driven intermittent operating circuit, comprising: the inlet of the isolation valve is connected with a throat shrinking pipe penetrating through a pressure boundary of the pressure container, the outlet of the isolation valve is simultaneously connected with the inlet of the first driving branch and the inlet of the second driving branch, the outlet of the first driving branch and the outlet of the second driving branch are simultaneously connected with the inlet of the pressure water storage tank, and the outlet of the pressure water storage tank is connected with the combined valve of the control rod driving wire.
2. The control rod water pressure drive intermittent run circuit of claim 1 wherein the first drive branch includes a first stop valve, a second stop valve, and a first circulation pump between the first stop valve and the second stop valve, and the second drive branch includes a third stop valve, a fourth stop valve, and a second circulation pump between the third stop valve and the fourth stop valve.
3. The control rod hydraulic drive intermittent operation circuit of claim 2 wherein the first and second drive legs are each provided with a filter, the two filters being located downstream of the first and second circulation pumps, respectively.
4. The control rod hydraulic drive intermittent operation loop as defined in claim 1, wherein an outlet of the isolation valve is provided with a pressure vessel temperature measuring point, and a pipeline between an outlet of the pressure water storage tank and the combination valve of the control rod drive line is provided with a combination valve temperature measuring point.
5. The control rod hydraulic drive intermittent operation circuit as set forth in claim 1, wherein a circulation pump flow rate point is provided on a pipe between the outlet of the first drive branch and the outlet of the second drive branch to the inlet of the pressure accumulator tank.
6. The control rod hydraulic drive intermittent operation loop as defined in claim 1 wherein the pressure reservoir is provided with a reservoir pressure measurement point and a reservoir level measurement point.
7. The control rod water pressure drive intermittent operation circuit as recited in claim 1, wherein a combination valve differential pressure measuring point is provided on the control rod water pressure drive intermittent operation circuit for measuring a differential pressure between an outlet of the isolation valve and an inlet of the combination valve of the control rod drive line.
8. The control rod hydraulic drive intermittent operation loop as defined in claim 1, wherein a circulating pump differential pressure measurement point is provided on each of the first drive branch and the second drive branch.
9. The control rod hydraulic drive batch run circuit of claim 1 wherein a filter differential pressure measurement point is provided on both the first drive leg and the second drive leg.
10. A control rod drive apparatus comprising the control rod hydraulic drive intermittent operation circuit as set forth in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773302.8A CN111997955B (en) | 2020-08-04 | 2020-08-04 | Control rod hydraulic drive intermittent type formula operation return circuit and control rod drive equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773302.8A CN111997955B (en) | 2020-08-04 | 2020-08-04 | Control rod hydraulic drive intermittent type formula operation return circuit and control rod drive equipment |
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| Publication Number | Publication Date |
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| CN111997955A true CN111997955A (en) | 2020-11-27 |
| CN111997955B CN111997955B (en) | 2022-01-28 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157939A (en) * | 1974-04-16 | 1979-06-12 | Kraftwerk Union Aktiengesellschaft | Pressurized-water reactor emergency core shutdown |
| JPS6064296A (en) * | 1983-09-19 | 1985-04-12 | 株式会社日立製作所 | Controller for driving water of control rod for nuclear reactor |
| US5128093A (en) * | 1991-03-27 | 1992-07-07 | General Electric Company | Control rod drive hydraulic system |
| JPH09218286A (en) * | 1996-02-13 | 1997-08-19 | Toshiba Corp | Atomic power plant |
| JP2004191154A (en) * | 2002-12-11 | 2004-07-08 | Hitachi Ltd | Control rod driving hydraulic system for nuclear power plant |
| JP2007033384A (en) * | 2005-07-29 | 2007-02-08 | Toshiba Corp | Cooling water supply method and cooling water supply system for control rod driving mechanism |
| CN101009147A (en) * | 2006-01-27 | 2007-08-01 | 株式会社东芝 | Driving control bar driving mechanism hydraulic system |
| JP2020003338A (en) * | 2018-06-28 | 2020-01-09 | 日立Ｇｅニュークリア・エナジー株式会社 | Control rod drive water pressure system |
-
2020
- 2020-08-04 CN CN202010773302.8A patent/CN111997955B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157939A (en) * | 1974-04-16 | 1979-06-12 | Kraftwerk Union Aktiengesellschaft | Pressurized-water reactor emergency core shutdown |
| JPS6064296A (en) * | 1983-09-19 | 1985-04-12 | 株式会社日立製作所 | Controller for driving water of control rod for nuclear reactor |
| US5128093A (en) * | 1991-03-27 | 1992-07-07 | General Electric Company | Control rod drive hydraulic system |
| JPH09218286A (en) * | 1996-02-13 | 1997-08-19 | Toshiba Corp | Atomic power plant |
| JP2004191154A (en) * | 2002-12-11 | 2004-07-08 | Hitachi Ltd | Control rod driving hydraulic system for nuclear power plant |
| JP2007033384A (en) * | 2005-07-29 | 2007-02-08 | Toshiba Corp | Cooling water supply method and cooling water supply system for control rod driving mechanism |
| CN101009147A (en) * | 2006-01-27 | 2007-08-01 | 株式会社东芝 | Driving control bar driving mechanism hydraulic system |
| JP2020003338A (en) * | 2018-06-28 | 2020-01-09 | 日立Ｇｅニュークリア・エナジー株式会社 | Control rod drive water pressure system |
Non-Patent Citations (1)
| Title |
|---|
| 薄涵亮等: "核反应堆控制棒水压驱动技术", 《清华大学学报(自然科学版)》 * |
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| CN111997955B (en) | 2022-01-28 |
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