CN111276266A - Control system and control method for grouping operation of two-loop small-sized piles - Google Patents
Control system and control method for grouping operation of two-loop small-sized piles Download PDFInfo
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- CN111276266A CN111276266A CN202010106944.2A CN202010106944A CN111276266A CN 111276266 A CN111276266 A CN 111276266A CN 202010106944 A CN202010106944 A CN 202010106944A CN 111276266 A CN111276266 A CN 111276266A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/02—Arrangements of auxiliary equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
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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 invention discloses a control system and a control method for grouping operation of a two-loop small stack, wherein the control system comprises: the system comprises a direct-flow steam generator, a steam turbine and a steam main pipe connected between the direct-flow steam generator and the steam turbine, wherein the direct-flow steam generator is used for transferring heat of a primary circuit to feed water of a secondary circuit, outlet steam of the secondary side of the direct-flow steam generator is used for pushing the steam turbine to do work, the direct-flow steam generator comprises two rows of heat transfer pipes with the same quantity, a feed water control valve and a throttling element are installed on the secondary side of the direct-flow steam generator, and a pressure threshold valve and a first steam quantity control valve are installed on the; and the steam main pipe is also provided with a second steam quantity control valve for controlling the steam quantity entering the steam turbine. According to the invention, by establishing the grouping operation control system and adopting a scientific and feasible operation control strategy, reactor shutdown in the power switching process is not required, the risk of low-power operation is reduced, and the safety and the economy of the unit are greatly improved.
Description
Technical Field
The invention relates to the technical field of nuclear reactors, in particular to a control system and a control method for grouping operation of two-loop small reactors.
Background
Small stacks are prone to flow instabilities during long term low power operation, which is ameliorated by the addition of a restriction. Generally speaking, the greater the flow resistance of the throttling element, the more stable the once-through steam generator (OTSG) operation. However, the flow resistance of the orifice is limited by design and manufacture, and the greater the flow resistance, the higher the cost. After a proper throttling element is selected, the long-term stable low-power operating point of the small-sized stack is calculated and analyzed to be 20% FP (FP indicates full power), the power goes downwards, and the OTSG has flow instability.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a control system and a control method for grouping operation of a two-loop small stack, so as to reduce the risk of low-power operation of a unit and improve the safety and the economy of the unit.
In order to solve the above technical problem, the present invention provides a control system for a two-loop mini-heap packet operation, comprising:
the system comprises a once-through steam generator, a steam turbine and a steam main pipe connected between the once-through steam generator and the steam turbine, wherein the once-through steam generator is used for transferring heat of a primary loop to feed water of a secondary loop, secondary side outlet steam of the once-through steam generator is used for pushing the steam turbine to do work, and the steam turbine is used for utilizing the outlet steam of the once-through steam generator to do work; the steam main pipe is used for conveying the steam generated by the once-through steam generator to the steam turbine;
the direct-flow steam generator comprises two rows of heat transfer pipes with the same quantity, each row of heat transfer pipes are uniformly distributed in the direct-flow steam generator, and the two water feed pumps are respectively used for supplying water to the two rows of heat transfer pipes;
the secondary side of the direct current steam generator is provided with a water supply control valve and a throttling element, the water supply control valve is used for controlling the water supply quantity of the inlet and outlet heat transfer pipe, and the throttling element is used for increasing the flow resistance of the secondary side of the direct current steam generator;
a pressure threshold valve and a first steam quantity control valve are installed on the primary side of the direct-current steam generator, the pressure threshold valve is used for opening the valve to release steam when the pressure in the heat transfer pipe exceeds a pressure threshold, and the first steam quantity control valve is used for controlling the steam quantity entering the steam main pipe;
and the steam main pipe is also provided with a second steam quantity control valve for controlling the steam quantity entering the steam turbine.
Wherein the feedwater control valve is located between the throttle and the once-through steam generator.
Wherein the first steam volume control valve is located between the pressure threshold valve and the steam main.
The invention also provides a control method of the control system for grouping operation of the two-loop small heap, which comprises the following steps:
in a downlink stage when power switching is executed, one second steam flow control valve is controlled to be opened at the initial moment, and the other second steam flow control valve is controlled to be closed;
the reactor core power is 20% FP, and the turbine power is reduced from 20% FP to 10% FP by adjusting the opening degree of the two second steam quantity control valves;
inputting feed water into two rows of heat transfer tubes of the direct current steam generator through a throttling element;
the flow of the feed water of the heat transfer pipes in the first row is increased from the flow of 10% FF to 20% FF within 60s, the outlet steam of the first row is discharged to a steam turbine through a second steam quantity control valve, the power of the steam turbine is kept unchanged by 20% FP in the process, and the redundant steam is discharged to the atmosphere or a condenser through the second steam quantity control valve;
the water supply control valve for controlling the water supply quantity of the second row of heat transfer pipes and the first steam quantity valve for controlling the steam quantity entering the steam main pipe from the second row of heat transfer pipes are closed at the initial moment, the water supply flow of the second row of heat transfer pipes is reduced to 0% FF within 60s from the flow of 10% FF, and the steam at the outlet of the second row of heat transfer pipes is directly exhausted to the atmosphere or a condenser through the pressure threshold valve;
after the water supply flow of the first row of heat transfer pipes is increased to 20% FF, and after the outlet steam pressure is stable, the power of the reactor core is reduced to 10% FP power, and the water supply flow of the first row of heat transfer pipes is reduced to 10% FF.
When the previous grouped operation descending stage is operated alternately, if the valves on one row of heat transfer pipes are closed, the valves on the other row of heat transfer pipes are closed in the next descending stage.
The invention also provides a control method of the control system for grouping operation of the two-loop small heap, which comprises the following steps:
in the ascending stage when power switching is executed, one second steam flow control valve is controlled to be opened and the other second steam flow control valve is controlled to be closed at the initial moment;
the power of the steam turbine is 10% FP, and the power of the reactor core is increased from 10% FP to 20% FP;
the water supply control valve for controlling the water supply quantity of the heat transfer pipes in and out of the second row is opened at the initial moment, the first steam quantity valve for controlling the steam quantity entering the steam main pipe from the second row of heat transfer pipes is kept closed, the water supply quantity of the heat transfer pipes in the second row is increased to 10% FF within 60s from 0% FF, and the steam at the outlet of the heat transfer pipes is directly exhausted to the atmosphere or a condenser through the pressure threshold valve;
after the water supply flow of the second row of heat transfer pipes is increased to 10% FF, a first steam quantity control valve is opened;
and after the pressure of the steam main pipe is kept stable, the opening degree of the second steam quantity control valve is adjusted, so that the power of the steam turbine is increased to 20 percent FP.
When the previous grouped operation descending stage is operated alternately, if the valves on one row of heat transfer pipes are closed, the valves on the other row of heat transfer pipes are closed in the next descending stage.
The embodiment of the invention has the following beneficial effects: reactor shutdown is not needed in the power switching process, the risk of low-power operation is reduced, and the safety and the economy of the unit are greatly improved; the long-term low-power operation of the self-propelled ship on the sea can be completely realized, and the applicability range of the small-sized pile is improved; the invention can cut off the heat transfer pipe alternatively when the power is switched each time, thus improving the service life of the OTSG; the difficulty in selecting the type of the throttling element is reduced, the running flow resistance is reduced, and the running economy of the small reactor is improved.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a control system for grouping operation of a two-loop mini-heap according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the invention may be practiced.
An embodiment of the present invention provides a control system for grouping operations of a two-loop mini-stack, including:
the system comprises a once-through steam generator, a steam turbine and a steam main pipe connected between the once-through steam generator and the steam turbine, wherein the once-through steam generator is used for transferring heat of a primary loop to feed water of a secondary loop, secondary side outlet steam of the once-through steam generator is used for pushing the steam turbine to do work, and the steam turbine is used for utilizing the outlet steam of the once-through steam generator to do work; the steam main pipe is used for conveying the steam generated by the once-through steam generator to the steam turbine;
the direct-flow steam generator comprises two rows of heat transfer pipes with the same quantity, each row of heat transfer pipes are uniformly distributed in the direct-flow steam generator, and the two water feed pumps are respectively used for supplying water to the two rows of heat transfer pipes;
the secondary side of the direct current steam generator is provided with a water supply control valve and a throttling element, the water supply control valve is used for controlling the water supply quantity of the inlet and outlet heat transfer pipe, and the throttling element is used for increasing the flow resistance of the secondary side of the direct current steam generator;
a pressure threshold valve and a first steam quantity control valve are installed on the primary side of the direct-current steam generator, the pressure threshold valve is used for opening the valve to release steam when the pressure in the heat transfer pipe exceeds a pressure threshold, and the first steam quantity control valve is used for controlling the steam quantity entering the steam main pipe;
and the steam main pipe is also provided with a second steam quantity control valve for controlling the steam quantity entering the steam turbine.
Specifically, the schematic structural diagram of the control system for the two-loop mini-heap packet operation in this embodiment is shown in fig. 1:
the once-through steam generator OTSG comprises two rows of heat transfer pipes, namely an A row and a B row, wherein each row is respectively provided with half of the number of heat transfer pipes, and each row of heat transfer pipes are uniformly distributed in the OTSG.
And the pump A supplies water for the heat transfer pipe A, and the pump B supplies water for the heat transfer pipe B.
Two pressure threshold valves A2 and B2 with adjustable pressure threshold, wherein the pressure threshold valve A2 opens the valve to release steam when the pressure in the A-column heat transfer pipe exceeds the pressure threshold, thereby reducing the pressure; pressure threshold valve B2 opens the valve to release vapor and reduce the pressure when the pressure in the heat transfer tube in column B exceeds the pressure threshold.
Two restrictions C1 and C2 to increase the flow resistance on the secondary side of the OTSG.
And the water supply control valves A1 and B1 are arranged, wherein the water supply control valve A1 is used for controlling the water supply quantity of the heat transfer pipes in the row A, and the water supply control valve B1 is used for controlling the water supply quantity of the heat transfer pipes in the row B.
The first steam quantity control valve A3 is used for controlling the steam quantity entering the steam main pipe of the heat transfer pipe A, and the first steam quantity control valve B3 is used for controlling the steam quantity entering the steam main pipe of the heat transfer pipe B. The second steam flow control valves D1, D2 are used to control the amount of steam entering the turbine.
More specifically, feedwater control valves a1, B1 are located between the chokes C1, C2 and the OTSG, and first steam quantity control valves A3, B3 are located between the pressure threshold valves a2, B2 and the steam header.
The following describes an operation control flow of the control system for grouping operation of the two-loop small heap in this embodiment, which mainly includes a downlink stage and an uplink stage during power switching.
First, downstream stage (Single OTSG)
1. At the initial time t being 0, the second steam quantity control valve D1 is opened, and D2 is closed;
2. the reactor core power is 20% FP (FP is full power), and the steam turbine power is reduced from 20% FP to 10% FP by adjusting the opening degree of the second steam quantity control valves D1 and D2;
3. feed water enters the heat transfer tubes in columns A and B of the OTSG through the throttles C1 and C2;
4. the water supply flow rate of the heat transfer pipes in the A row is increased to 20% FF within 60s from the flow rate of 10% FF (total water supply flow rate of the secondary side of the OTSG when FF is full power), the outlet steam of the heat transfer pipes in the A row is discharged to the steam turbine through a second steam flow control valve D1, in the process, the power 20% FP of the steam turbine is kept unchanged (under the condition that the steam quality is the same, the steam flow and the power are in a linear relation), and the redundant steam is discharged to the atmosphere or a condenser through a second steam flow control valve D2;
5. the heat transfer pipe of the row B, the water supply valve B1 is closed at the time of 0, the steam valve B3 is closed at the time of 0, the water supply flow is reduced to 0% FF within 60s from the flow of 10% FF, and the outlet steam of the row B is directly exhausted to the atmosphere or a condenser through a pressure threshold valve B2;
6. after the feedwater flow of the heat transfer pipe in the row A is increased to 20% FF, and after the outlet steam pressure is stable (the feedwater flow of the heat transfer pipe in the row A is increased from 10% FF to 20% FF, and the adjustment of the second steam quantity control valve D1 and the adjustment of the second steam quantity control valve D2 are superposed, the outlet pressure has certain fluctuation at the moment, but the outlet pressure is stable and does not change any more along with the flow stability at 20% FF), the core power is reduced to 10% FP power, and the feedwater flow of the row A is reduced to 10% FF.
7. The downlink phase is ended.
Second, uplink stage (Single OTSG)
1. At the initial time t being 0, the second steam quantity control valve D1 is opened, and D2 is closed;
2. the power of the steam turbine is 10% FP, and the power of the reactor core is increased from 10% FP to 20% FP;
3. the heat transfer pipe in the row B, a water supply control valve B1 is opened at the time of 0, a first steam quantity control valve B3 is kept closed, the water supply flow is increased to 10% FF within 60s from the flow of 0% FF, and the outlet steam of the row B is directly exhausted to the atmosphere or a condenser through a pressure threshold valve B2;
4. the heat transfer pipe B is used for opening a first steam quantity control valve B3 after the feed water flow is increased to 10% FF;
5. after the pressure of the steam main pipe is kept stable, the opening degree of the second steam quantity control valves D1 and D2 is adjusted, so that the power of the steam turbine is increased to 20% FP.
6. The uplink phase ends.
As can be seen from the above, a second embodiment of the present invention further provides a control method of a control system for grouped operation of a two-loop mini-heap according to the first embodiment of the present invention, including:
in the descending stage when the power switching is executed, one second steam quantity control valve D1 is controlled to be opened at the initial moment, and the other second steam quantity control valve D2 is controlled to be closed;
the reactor core power is 20% FP, and the turbine power is reduced from 20% FP to 10% FP by adjusting the opening degree of the two second steam quantity control valves;
inputting feed water into two rows of heat transfer tubes of the direct current steam generator through a throttling element;
the flow of the feed water of the heat transfer pipes of the first row is increased from the flow of 10% FF to 20% FF within 60s, the outlet steam of the first row is discharged to a steam turbine through a second steam quantity control valve D1, the power of the steam turbine is kept to be 20% FP in the process, and the redundant steam is discharged to the atmosphere or a condenser through a second steam quantity control valve D2;
a water supply control valve B1 for controlling the water supply quantity of the inlet and outlet second row of heat transfer pipes and a first steam quantity valve B3 for controlling the steam quantity of the inlet and outlet second row of heat transfer pipes into a steam main pipe are both closed at the initial moment, the water supply flow of the second row of heat transfer pipes is reduced to 0% FF within 60s from the flow of 10% FF, and the steam at the outlet of the second row of heat transfer pipes is directly discharged to the atmosphere or a condenser through a pressure threshold valve B2;
after the water supply flow of the first row of heat transfer pipes is increased to 20% FF, and after the outlet steam pressure is stable, the power of the reactor core is reduced to 10% FP power, and the water supply flow of the first row of heat transfer pipes is reduced to 10% FF.
The third embodiment of the present invention further provides a control method for a control system for grouped operation of a two-loop mini-heap according to the first embodiment of the present invention, including:
in the ascending stage when the power switching is executed, one second steam quantity control valve D1 is controlled to be opened and the other second steam quantity control valve D2 is controlled to be closed at the initial moment;
the power of the steam turbine is 10% FP, and the power of the reactor core is increased from 10% FP to 20% FP;
a water supply control valve B1 for controlling the water supply quantity of the inlet and outlet second row of heat transfer pipes is opened at the initial moment, a first steam quantity valve B3 for controlling the steam quantity entering the steam main pipe from the second row of heat transfer pipes is kept closed, the water supply flow of the second row of heat transfer pipes is increased to 10% FF within 60s from the flow of 0% FF, and the outlet steam of the second row of heat transfer pipes is directly discharged to the atmosphere or a condenser through a pressure threshold valve B2;
after the water supply flow of the second row of heat transfer pipes is increased to 10% FF, a first steam quantity control valve B3 is opened;
and after the pressure of the steam main pipe is kept stable, the opening degree of the second steam quantity control valve is adjusted, so that the power of the steam turbine is increased to 20 percent FP.
It should be noted that, when the previous downlink stage of the grouped operation is performed alternately, the valves on the heat transfer pipes in the row B are closed, and when the next downlink stage is performed, the valves on the heat transfer pipes in the row a are closed, and the rows a and B are performed alternately, so that the possibility of damage to the heat transfer pipes is reduced. Similarly, the uplink phase also needs to be operated alternately.
According to the description of the embodiment, the embodiment of the invention has the advantages that reactor shutdown is not needed in the power switching process, the risk of low-power operation is reduced, and the safety and the economy of the unit are greatly improved; the long-term low-power operation of the self-propelled ship on the sea can be completely realized, and the applicability range of the small-sized pile is improved; the invention can cut off the heat transfer pipe alternatively when the power is switched each time, thus improving the service life of the OTSG; the difficulty in selecting the type of the throttling element is reduced, the running flow resistance is reduced, and the running economy of the small reactor is improved.
In addition, when the reactor is applied to a small reactor of a marine self-propelled ship with the power of 3-200 MW (electric power), the self-propelled nuclear power ship can realize stable operation of a unit and stable output without stopping the reactor in long-term low-power operation, and the reactor has obvious economic benefit.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (7)
1. A control system for a two-loop mini-heap packet operation, comprising:
the system comprises a once-through steam generator, a steam turbine and a steam main pipe connected between the once-through steam generator and the steam turbine, wherein the once-through steam generator is used for transferring heat of a primary loop to feed water of a secondary loop, secondary side outlet steam of the once-through steam generator is used for pushing the steam turbine to do work, and the steam turbine is used for utilizing the outlet steam of the once-through steam generator to do work; the steam main pipe is used for conveying the steam generated by the once-through steam generator to the steam turbine;
the direct-flow steam generator comprises two rows of heat transfer pipes with the same quantity, each row of heat transfer pipes are uniformly distributed in the direct-flow steam generator, and the two water feed pumps are respectively used for supplying water to the two rows of heat transfer pipes;
the secondary side of the direct current steam generator is provided with a water supply control valve and a throttling element, the water supply control valve is used for controlling the water supply quantity of the inlet and outlet heat transfer pipe, and the throttling element is used for increasing the flow resistance of the secondary side of the direct current steam generator;
a pressure threshold valve and a first steam quantity control valve are installed on the primary side of the direct-current steam generator, the pressure threshold valve is used for opening the valve to release steam when the pressure in the heat transfer pipe exceeds a pressure threshold, and the first steam quantity control valve is used for controlling the steam quantity entering the steam main pipe;
and the steam main pipe is also provided with a second steam quantity control valve for controlling the steam quantity entering the steam turbine.
2. The control system of claim 1, wherein the feedwater control valve is located between the throttle and the once-through steam generator.
3. The control system of claim 1, wherein the first vapor volume control valve is located between the pressure threshold valve and the vapor header.
4. A control method of a control system for a two-loop mini-heap packet operation as claimed in claim 1, comprising:
in the descending stage when the power switching is executed, one second steam quantity control valve (D1) is controlled to be opened and the other second steam quantity control valve (D2) is controlled to be closed at the initial moment;
the reactor core power is 20% FP, and the turbine power is reduced from 20% FP to 10% FP by adjusting the opening degree of the two second steam quantity control valves;
inputting feed water into two rows of heat transfer tubes of the direct current steam generator through a throttling element;
the flow rate of the feed water of the heat transfer pipes of the first row is increased from the flow rate of 10% FF to 20% FF within 60s, the outlet steam of the first row is discharged to a steam turbine through a second steam flow control valve (D1), the power of the steam turbine is kept to be 20% FP unchanged in the process, and the redundant steam is discharged to the atmosphere or a condenser through a second steam flow control valve (D2);
a feed water control valve (B1) for controlling the feed water amount entering and exiting the second row of heat transfer pipes, and a first steam amount valve (B3) for controlling the steam amount entering the steam main pipe from the second row of heat transfer pipes are closed at the initial moment, the feed water flow of the second row of heat transfer pipes is reduced to 0% FF within 60s from the flow of 10% FF, and the outlet steam of the second row of heat transfer pipes is directly discharged to the atmosphere or a condenser through a pressure threshold valve (B2);
after the water supply flow of the first row of heat transfer pipes is increased to 20% FF, and after the outlet steam pressure is stable, the power of the reactor core is reduced to 10% FP power, and the water supply flow of the first row of heat transfer pipes is reduced to 10% FF.
5. The control method according to claim 4, wherein, in the case where the valves of one of the heat transfer pipes in one of the rows are closed in the preceding grouped operation descending stage of the alternating operation, the valves of the other row of the heat transfer pipes are closed in the succeeding descending stage.
6. A control method of a control system for a two-loop mini-heap packet operation as claimed in claim 1, comprising:
in the ascending stage when the power switching is executed, one second steam quantity control valve (D1) is controlled to be opened and the other second steam quantity control valve (D2) is controlled to be closed at the initial moment;
the power of the steam turbine is 10% FP, and the power of the reactor core is increased from 10% FP to 20% FP;
a water supply control valve (B1) for controlling the water supply quantity of the heat transfer pipes in and out of the second row is opened at the initial moment, a first steam quantity valve (B3) for controlling the steam quantity entering the steam main pipe from the heat transfer pipes in the second row is kept closed, the water supply quantity of the heat transfer pipes in the second row is increased to 10% FF within 60s from the flow of 0% FF, and the steam at the outlet of the heat transfer pipes is directly exhausted to the atmosphere or a condenser through a pressure threshold valve (B2);
after the water supply flow of the second row of heat transfer pipes is increased to 10% FF, a first steam quantity control valve (B3) is opened;
and after the pressure of the steam main pipe is kept stable, the opening degree of the second steam quantity control valve is adjusted, so that the power of the steam turbine is increased to 20 percent FP.
7. The control method according to claim 6, wherein, in the case where the valves of one of the heat transfer pipes in one of the rows are closed in the preceding grouped operation descending stage of the alternating operation, the valves of the other row of the heat transfer pipes are closed in the succeeding descending stage.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112417780A (en) * | 2020-11-19 | 2021-02-26 | 上海交通大学 | Method and system for estimating mass flow of secondary loop recycled water of steam generator |
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| CN1252607A (en) * | 1998-10-22 | 2000-05-10 | Abb燃烧工程核力公司 | Water supply control in full power range for pressurized water reactor steam generator |
| CN107170487A (en) * | 2017-04-21 | 2017-09-15 | 中广核研究院有限公司 | The control system and method for many inclined loop operations of the long-term low-power of loop reactor |
| CN209641363U (en) * | 2018-12-04 | 2019-11-15 | 中广核研究院有限公司 | A kind of secondary side water supply system of once through steam generator |
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2020
- 2020-02-21 CN CN202010106944.2A patent/CN111276266B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1252607A (en) * | 1998-10-22 | 2000-05-10 | Abb燃烧工程核力公司 | Water supply control in full power range for pressurized water reactor steam generator |
| CN107170487A (en) * | 2017-04-21 | 2017-09-15 | 中广核研究院有限公司 | The control system and method for many inclined loop operations of the long-term low-power of loop reactor |
| CN209641363U (en) * | 2018-12-04 | 2019-11-15 | 中广核研究院有限公司 | A kind of secondary side water supply system of once through steam generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112417780A (en) * | 2020-11-19 | 2021-02-26 | 上海交通大学 | Method and system for estimating mass flow of secondary loop recycled water of steam generator |
| CN112417780B (en) * | 2020-11-19 | 2023-03-24 | 上海交通大学 | Method and system for estimating mass flow of secondary loop recycled water of steam generator |
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| CN111276266B (en) | 2023-01-06 |
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