CN103727140A - Non-active pressure-boosting pressure-stabilizing system capable of alleviating cavitation abrasion of water lubricated main-pump bearing - Google Patents
Non-active pressure-boosting pressure-stabilizing system capable of alleviating cavitation abrasion of water lubricated main-pump bearing Download PDFInfo
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Abstract
The invention relates to a non-active pressure-boosting pressure-stabilizing system capable of alleviating cavitation abrasion of a water lubricated main-pump bearing. According to the system, a conventional openmouthed main pump head box is changed into a sealed head box, also two electric stop valves are additionally installed on an exhaust overflow pipe, and an exhaust valve is additionally installed at the upper part of the head box. Because of a pressure stabilizing system consisting of a throttling member, an inverted valve and a pressure-stabilizing tank, the influence of pressure fluctuation of a desalted water supply system to the head box is buffered; an inflation system of the pressure-stabilizing tank is formed by utilizing a conventional nitrogen low-pressure system and additionally installing a manual stop valve used for adjusting nitrogen pressure and a manual stop valve used for closing and stopping nitrogen supply; by opening the electric stop valve in parallel connection with the inverted valve and opening the exhaust valve at the exhaust overflow pipe of the main pump head box and closing the electric stop valve at the inlet pipe of the pressure-stabilizing tank, the connection between changed return part and the original system is rapidly cut off; and by opening the manual stop valve used for closing and stopping nitrogen supply and at an air inflation pipe of the pressure-stabilizing tank, air can be supplied when a reactor is operated.
Description
Technical field
The present invention relates to a kind of non-active supercharging voltage-stabilizing system of alleviating water lubrication main pump bearing cavitation wearing and tearing, particularly under containment vessel condition, utilize desalt water supply system and nitrogen supply (NS) system building in containment source of consistent pressure to be provided and then to improve the supercharging voltage-stabilizing system of main pump bearing chamber static pressure for main pump head case.
Background technique
Gulf, field nuclear power station adopts Russian VVER reactor type, its main pump adopts the oiling agent of water as bearing, main pump bearing take water as oiling agent have Economy high, without plurality of advantages such as hidden fire-fighting danger, easy care maintenance, system simplifications, but also brought corresponding technical problem.After main pump operation a period of time of gulf, field nuclear power station, maintainer finds that on main pump bearing shell, existing some is similar to because of produce, the rough non-smooth wear face of cavitation wearing and tearing.The reason that occurs non-smooth wear face may come from main pump bearing and adopt water as Cooling and Lubricator medium, different from lubricant oil, the pressure and temperature transition point of water generation gas-liquid phase transition is relatively lower, this just means that water, than lubricant oil, cavitation more easily occurs, main pump bearing is produced to cavitation wearing and tearing, therefore require the static pressure of main pump bearing chamber should be higher than a certain limit value, so that enough cavitation margins to be provided.The static pressure of main pump bearing chamber is provided by pump, a case height difference and the barometric pressure of bearing cooling circuit, because containment vessel inner space is limited and the roadability of bearing cooling circuit should not change, for making the static pressure of main pump bearing chamber higher than a certain limit value, only shut a case and introduce stable pressure source.For a case, the most direct and the simple pressure source water supply system that desalts exactly, and the pressure of the water system that desalts is unsettled, must solves the water system pressure that desalts and introduce the key issues such as pressure stability, operating conditions foundation, parameter measurement and the early warning mechanism of case to the end.By to domestic and foreign literature retrieval, have no the report of correlation technique.
Summary of the invention
The object of the present invention is to provide a kind of non-active supercharging voltage-stabilizing system of alleviating the wearing and tearing of water lubrication main pump bearing cavitation, to improve bearing chamber static pressure, alleviate the cavitation wearing and tearing of main pump bearing, thereby improve the operational reliability of water lubrication main pump radial-thrust bearing, improve the Security of reactor.
For achieving the above object, the technical solution used in the present invention is:
A kind of non-active supercharging voltage-stabilizing system of alleviating the wearing and tearing of water lubrication main pump bearing cavitation, the water purification system that desalts is connected with LCU pump, LCU pump is connected with hand stop valve A, and hand stop valve A is connected with Electric Actuated Stop Valves A, and manual modulation valve is in parallel with Electric Actuated Stop Valves A; Electric Actuated Stop Valves A is connected with throttling element, safety check successively, and Electric Actuated Stop Valves B and throttling element, safety check are in parallel; Safety check is connected with main pump head case and Electric Actuated Stop Valves C respectively, and Electric Actuated Stop Valves C is connected with surge tank, is provided with pressure transmitter A between Electric Actuated Stop Valves C and surge tank; Surge tank differential pressure levelmeter is connected with surge tank; Surge tank is connected with one end, the hand stop valve B of water seal equilibrium valve respectively, and hand stop valve B is connected with melt pit, and the other end of water seal equilibrium valve is connected with hand stop valve C, and hand stop valve C is connected with melt pit; Surge tank is also connected with the hand stop valve that blocks nitrogen supply (NS), the other end of water seal equilibrium valve is connected to surge tank and blocks between the hand stop valve of nitrogen supply (NS), hand stop valve is connected with the hand stop valve that regulates nitrogen pressure, regulates the hand stop valve of nitrogen pressure to be connected with nitrogen supply (NS) system; Main pump head case is connected with pressure transmitter B, and main pump head case is connected with main pump bearing chamber, and main pump head case is connected with main pump head case differential pressure levelmeter; Main pump head case is also connected with outlet valve and Electric Actuated Stop Valves D respectively, and outlet valve is connected with atmosphere, and Electric Actuated Stop Valves D is connected with Electric Actuated Stop Valves E, and Electric Actuated Stop Valves E is connected with melt pit.
Described main pump head case is closed container.
Described surge tank adopts nitrogen directly to contact with water.
The Establishing process of this system works initial state is: the first step, close Electric Actuated Stop Valves A and Electric Actuated Stop Valves C, open Electric Actuated Stop Valves B, Electric Actuated Stop Valves D, Electric Actuated Stop Valves E and outlet valve, main pump head case directly contacts with atmosphere, the water that desalts of the water purification system that desalts enters into main pump head case under the driving of LCU pump, by the manual tune valve regulation water that desalts, enter into the flow of main pump head case, more than continuous service half an hour; Second step, opens Electric Actuated Stop Valves C, hand stop valve C, closes hand stop valve B, and the water that desalts enters into surge tank, and after surge tank liquid level is full of, the water that desalts spills into melt pit from hand stop valve C, then continuous service 10 minutes; The 3rd step, close Electric Actuated Stop Valves C, hand stop valve C, open the hand stop valve that blocks nitrogen supply (NS), slowly open and regulate the hand stop valve of nitrogen pressure, by regulating the pressure in the regulation surge tank of hand stop valve of nitrogen pressure, when the measured value of pressure transmitter A is in 0.05 ~ 0.1MPa, stop regulating the aperture of hand stop valve, open hand stop valve B, by nitrogen supply (NS) system, to surge tank, inflate, keep the aperture of the hand stop valve that regulates nitrogen pressure constant; When surge tank differential pressure levelmeter measured value is during in liquid level required value, close hand stop valve B; The 4th step, closes after 5 minutes until hand stop valve B, slowly increases the aperture of hand stop valve, when the measured value of pressure transmitter A is during in pressure required value, closes the hand stop valve that blocks nitrogen supply (NS), after spending 10 minutes, opens manual equilibrium valve; The 5th step, slowly increases the aperture of manual modulation valve, when main pump head case liquid level is in full liquid level, and when the water that desalts overflows from outlet valve and Electric Actuated Stop Valves D, Electric Actuated Stop Valves E, close Electric Actuated Stop Valves D, Electric Actuated Stop Valves E and outlet valve, then the aperture that slowly increases manual modulation valve is to maximum, after stablizing 5 minutes, open Electric Actuated Stop Valves A, close Electric Actuated Stop Valves B, after spending 2 minutes, open Electric Actuated Stop Valves C, the aperture of manual modulation valve is adjusted to minimum, and work initial state is set up complete.
The obtained beneficial effect of the present invention is:
The non-active supercharging voltage-stabilizing system of alleviating water lubrication main pump bearing cavitation wearing and tearing of the present invention has solved the problem of the higher and frequent wear of nuclear power station main pump bearing heat release rate, make main pump bearing heat release rate decline at least 14 percentage points, the wearing and tearing of main pump bearing have obtained great alleviation.
The non-active supercharging voltage-stabilizing system of alleviating the wearing and tearing of water lubrication main pump bearing cavitation of the present invention does not affect the operation of other system in containment, and it is few to control parameter, additionally do not increase the power equipments such as pump, under various limiting faults, all can meet the requirement of nuclear plant safety operation.
The non-active supercharging voltage-stabilizing system flow process advantages of simple of alleviating the wearing and tearing of water lubrication main pump bearing cavitation of the present invention, can be main pump bearing chamber provides enough cavitation margins to wear and tear to alleviate cavitation, and do not affect the enrich the water of the water system that desalts to main pump head case and the roadability of main pump bearing cooling circuit, can fast shut-off and main pump bearing contact prevent that this system from breaking down main pump bearing had a negative impact.
The non-active supercharging voltage-stabilizing system of alleviating the wearing and tearing of water lubrication main pump bearing cavitation of the present invention, desalt on the basis of water supply system main body and main pump bearing cooling circuit not changing main pump, by the water supply system that desalts to adding the parts such as corresponding valve, surge tank, throttling element and pipeline threeway on the branch road of main pump head case and shutting main pump head case and realize main pump head case to introduce stable pressure source and then improve main pump bearing chamber static pressure and alleviate the wearing and tearing of bearing cavitation.Main flow process and the structure of this system are: original uncovered main pump head case is changed into and shuts a case and on exhaust spilling water pipeline, install two Electric Actuated Stop Valvess additional and install an outlet valve additional in a upper box part threeway; By throttling element, safety check and surge tank, form pressure stabilizing system, cushion the impact of the correct case of water supply system pressure surge that desalts; Utilize existing nitrogen low service system and install additional and regulate the hand stop valve used of nitrogen pressure and close hand stop valve that cut-off nitrogen supply (NS) uses the gas charging system that forms surge tank; By opening the outlet valve on the Electric Actuated Stop Valves in parallel with safety check, main pump head case exhaust spilling water pipeline, and close the Electric Actuated Stop Valves on surge tank intake pipe, can fast shut-off transform contacting of loop feature and original system; By opening the hand stop valve that cut-off nitrogen supply (NS) is used of closing on surge tank gas ducting, can when reactor operation, carry out tonifying Qi.
Accompanying drawing explanation
Fig. 1 is existing system structural drawing;
Fig. 2 is the non-active supercharging voltage-stabilizing system structural drawing of alleviating the wearing and tearing of water lubrication main pump bearing cavitation of the present invention;
In figure: 1, the water purification system that desalts; 2, LCU pump; 3, hand stop valve A; 4, Electric Actuated Stop Valves A; 5, manual modulation valve; 6, throttling element; 7, safety check; 8, Electric Actuated Stop Valves B; 9, Electric Actuated Stop Valves C; 10, pressure transmitter A; 11, surge tank; 12, surge tank differential pressure levelmeter; 13, water seal equilibrium valve; 14, hand stop valve B; 15, hand stop valve C; 16, melt pit; 17, block the hand stop valve of nitrogen supply (NS); 18, regulate the hand stop valve of nitrogen pressure; 19, nitrogen supply (NS) system; 20, main pump head case differential pressure levelmeter; 21, pressure transmitter B; 22, main pump head case; 23, main pump bearing chamber; 24, atmosphere; 25, outlet valve; 26, Electric Actuated Stop Valves D; 27, Electric Actuated Stop Valves E.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, before the invention process transformation, the water that desalts in the water purification system that desalts 1 arrives 47m main pump head case 22 highly through a series of valve and pipeline under the driving of LCU pump 2, and the 47m height of main pump head case 22 is originated for main pump bearing chamber 23 provides certain static pressure.Main pump head case 22 directly communicates with atmosphere 24 by exhaust line, by the overflow line of often opening, is linked into melt pit 16.On the moisturizing pipeline of main pump head case 22, be provided with one for blocking the hand stop valve A3 of moisturizing, the manual modulation valve 5 of an adjusting refill flow and the Electric Actuated Stop Valves A4 in parallel with manual modulation valve 5, main pump head case 22 liquid levels that the switch of Electric Actuated Stop Valves A4 is monitored by level meter 20 are controlled, and the acting in conjunction of manual modulation valve 5 and Electric Actuated Stop Valves A4 can reduce the on-off times of Electric Actuated Stop Valves A4 effectively.
As shown in Figure 1 and Figure 2, the each constituent elements of non-active supercharging voltage-stabilizing system and the annexation thereof of alleviating water lubrication main pump bearing cavitation wearing and tearing of the present invention is as follows: the water purification system that desalts 1 is connected with LCU pump 2, LCU pump 2 is connected with hand stop valve A3, hand stop valve A3 is connected with Electric Actuated Stop Valves A4, and manual modulation valve 5 is in parallel with Electric Actuated Stop Valves A4; Electric Actuated Stop Valves A4 is connected with throttling element 6, safety check 7 successively, and Electric Actuated Stop Valves B8 and throttling element 6, safety check 7 are in parallel; Safety check 7 is connected with main pump head case 22 and Electric Actuated Stop Valves C9 respectively, and Electric Actuated Stop Valves C9 is connected with surge tank 11, between Electric Actuated Stop Valves C9 and surge tank 11, is provided with pressure transmitter A10; Surge tank differential pressure levelmeter 12 is connected with surge tank 11; Surge tank 11 is connected with one end, the hand stop valve B14 of water seal equilibrium valve 13 respectively, and hand stop valve B14 is connected with melt pit 16, and the other end of water seal equilibrium valve 13 is connected with hand stop valve C15, and hand stop valve C15 is connected with melt pit 16; Surge tank 11 is also connected with the hand stop valve 17 that blocks nitrogen supply (NS), the other end of water seal equilibrium valve 13 is connected to surge tank 11 and blocks between the hand stop valve 17 of nitrogen supply (NS), hand stop valve 17 is connected with the hand stop valve 18 that regulates nitrogen pressure, regulates the hand stop valve 18 of nitrogen pressure to be connected with nitrogen supply (NS) system 19; Main pump head case 22 is connected with pressure transmitter B21, and main pump head case 22 is connected with main pump bearing chamber 23, and main pump head case 22 is connected with main pump head case differential pressure levelmeter 20; Main pump head case 22 is also connected with outlet valve 25 and Electric Actuated Stop Valves D26 respectively, and outlet valve 25 is connected with atmosphere 24, and Electric Actuated Stop Valves D26 is connected with Electric Actuated Stop Valves E27, and Electric Actuated Stop Valves E27 is connected with melt pit 16;
After the invention process transformation, main pump head case 22 is closed container, the overflow line of main pump head case 22 and exhaust line change a pipeline into, on the exhaust spilling water pipeline of main pump head case 22, install two normally closed Electric Actuated Stop Valves D26 additional and Electric Actuated Stop Valves E27 is linked into melt pit 16, in the 22 top threeways of main pump head case, install a normally closed outlet valve 25 additional and communicate with atmosphere 24; Install the pressure that pressure transmitter B21 measures main pump head case 22 additional;
On the moisturizing pipeline of main pump head case 22, install throttling element 6, safety check 7 and surge tank 11 additional and form pressure stabilizing system, cushion the impact of water supply system pressure surge on main pump head case 22 of desalting.A normally closed Electric Actuated Stop Valves B8 in parallel with throttling element 6 and safety check 7 on main pump head case 22 moisturizing pipelines, can isolate contacting of throttling element 6 and safety check 7 and moisturizing pipeline by opening Electric Actuated Stop Valves B8.Surge tank 11 is connected on moisturizing pipeline by an Electric Actuated Stop Valves C9 who often opens, and by closing Electric Actuated Stop Valves C9, can completely cut off contacting of surge tank 11 and moisturizing pipeline;
As shown in Figure 2, the Establishing process of the non-active supercharging voltage-stabilizing system work initial state of alleviating the wearing and tearing of water lubrication main pump bearing cavitation of the present invention is: the first step, close Electric Actuated Stop Valves A4 and Electric Actuated Stop Valves C9, open Electric Actuated Stop Valves B8, Electric Actuated Stop Valves D26, Electric Actuated Stop Valves E27 and outlet valve 25, main pump head case 22 directly contacts with atmosphere 24, the water that desalts of the water purification system that desalts 1 enters into main pump head case 22 under the driving of LCU pump 2, by manual modulation valve 5, regulate the water that desalts to enter into the flow of main pump head case 22, more than continuous service half an hour; Second step, opens Electric Actuated Stop Valves C9, hand stop valve C15, closes hand stop valve B14, and the water that desalts enters into surge tank 11, and after surge tank 11 liquid levels are full of, the water that desalts spills into melt pit 16 from hand stop valve C15, then continuous service 10 minutes; The 3rd step, close Electric Actuated Stop Valves C9, hand stop valve C15, open the hand stop valve 17 that blocks nitrogen supply (NS), slowly open the hand stop valve 18 that regulates nitrogen pressure, by regulating the pressure in the regulation surge tank 11 of hand stop valve 18 of nitrogen pressure, when the measured value of pressure transmitter A10 is in 0.05 ~ 0.1MPa, stop regulating the aperture of hand stop valve 18, open hand stop valve B14, by nitrogen supply (NS) system 19, to surge tank inflation, keep the aperture of the hand stop valve 18 that regulates nitrogen pressure constant; When surge tank differential pressure levelmeter 12 measured values are during in liquid level required value, close hand stop valve B14; The 4th step, closes after 5 minutes until hand stop valve B14, slowly increases the aperture of hand stop valve 18, when the measured value of pressure transmitter 10 is during in pressure required value, close the hand stop valve 17 that blocks nitrogen supply (NS), after spending 10 minutes, open manual equilibrium valve 13; The 5th step, slowly increase the aperture of manual modulation valve 5, when main pump head case 22 liquid levels are in full liquid level, and when the water that desalts overflows from outlet valve 25 and Electric Actuated Stop Valves D26, Electric Actuated Stop Valves E27, close Electric Actuated Stop Valves D26, Electric Actuated Stop Valves E27 and outlet valve 25, slowly increase again the aperture of manual modulation valve 5 to maximum, after stablizing 5 minutes, open Electric Actuated Stop Valves A4, close Electric Actuated Stop Valves B8, after spending 2 minutes, open Electric Actuated Stop Valves C9, the aperture of manual modulation valve 5 is adjusted to minimum, and setting up of work initial state is complete.
Claims (4)
1. can alleviate the non-active supercharging voltage-stabilizing system of water lubrication main pump bearing cavitation wearing and tearing for one kind, it is characterized in that: the water purification system that desalts (1) is connected with LCU pump (2), LCU pump (2) and hand stop valve A(3) be connected, hand stop valve A(3) with Electric Actuated Stop Valves A(4) be connected manual modulation valve (5) and Electric Actuated Stop Valves A(4) in parallel; Electric Actuated Stop Valves A(4) be connected successively Electric Actuated Stop Valves B(8 with throttling element (6), safety check (7)) in parallel with throttling element (6), safety check (7); Safety check (7) respectively with main pump head case (22) and Electric Actuated Stop Valves C(9) be connected Electric Actuated Stop Valves C(9) be connected Electric Actuated Stop Valves C(9 with surge tank (11)) and surge tank (11) between be provided with pressure transmitter A(10); Surge tank differential pressure levelmeter (12) is connected with surge tank (11); Surge tank (11) respectively with one end, the hand stop valve B(14 of water seal equilibrium valve (13)) be connected, hand stop valve B(14) be connected with melt pit (16), the other end of water seal equilibrium valve (13) and hand stop valve C(15) be connected hand stop valve C(15) be connected with melt pit (16); Surge tank (11) is also connected with the hand stop valve (17) that blocks nitrogen supply (NS), the other end of water seal equilibrium valve (13) is connected to surge tank (11) and blocks between the hand stop valve (17) of nitrogen supply (NS), hand stop valve (17) is connected with the hand stop valve (18) that regulates nitrogen pressure, regulates the hand stop valve (18) of nitrogen pressure to be connected with nitrogen supply (NS) system (19); Main pump head case (22) is connected with pressure transmitter B(21), main pump head case (22) is connected with main pump bearing chamber (23), and main pump head case (22) is connected with main pump head case differential pressure levelmeter (20); Main pump head case (22) also respectively with outlet valve (25) and Electric Actuated Stop Valves D(26) be connected, outlet valve (25) is connected with atmosphere (24), Electric Actuated Stop Valves D(26) with Electric Actuated Stop Valves E(27) be connected Electric Actuated Stop Valves E(27) be connected with melt pit (16).
2. the non-active supercharging voltage-stabilizing system of alleviating the wearing and tearing of water lubrication main pump bearing cavitation according to claim 1, is characterized in that: described main pump head case (22) is closed container.
3. the non-active supercharging voltage-stabilizing system of alleviating the wearing and tearing of water lubrication main pump bearing cavitation according to claim 1, is characterized in that: described surge tank (11) adopts nitrogen directly to contact with water.
4. the non-active supercharging voltage-stabilizing system of alleviating the wearing and tearing of water lubrication main pump bearing cavitation according to claim 1, it is characterized in that: the Establishing process of this system works initial state is: the first step, close Electric Actuated Stop Valves A(4) and Electric Actuated Stop Valves C(9), open Electric Actuated Stop Valves B(8), Electric Actuated Stop Valves D(26), Electric Actuated Stop Valves E(27) and outlet valve (25), main pump head case (22) directly contacts with atmosphere (24), the water that desalts of the water purification system that desalts (1) enters into main pump head case (22) under the driving of LCU pump (2), by manual modulation valve (5), regulate the water that desalts to enter into the flow of main pump head case (22), more than continuous service half an hour, second step, open Electric Actuated Stop Valves C(9), hand stop valve C(15), close hand stop valve B(14), the water that desalts enters into surge tank (11), after surge tank (11) liquid level is full of, desalt water from hand stop valve C(15) spill into melt pit (16), then continuous service 10 minutes, the 3rd step, close Electric Actuated Stop Valves C(9), hand stop valve C(15), open the hand stop valve (17) that blocks nitrogen supply (NS), slowly open the hand stop valve (18) that regulates nitrogen pressure, by regulating the pressure in the regulation surge tank (11) of hand stop valve (18) of nitrogen pressure, as pressure transmitter A(10) measured value in 0.05 ~ 0.1MPa, stop regulating the aperture of hand stop valve (18), open hand stop valve B(14), by nitrogen supply (NS) system (19), to surge tank, inflate, keep the aperture of the hand stop valve (18) that regulates nitrogen pressure constant, when surge tank differential pressure levelmeter (12) measured value is during in liquid level required value, close hand stop valve B(14), the 4th step, until hand stop valve B(14) close after 5 minutes, slowly increase the aperture of hand stop valve (18), as pressure transmitter A(10) measured value when pressure required value, close the hand stop valve (17) that blocks nitrogen supply (NS), cross after 10 minutes, open manual equilibrium valve (13), the 5th step, slowly increase the aperture of manual modulation valve (5), when main pump head case (22) liquid level is in full liquid level, and the water that desalts is from outlet valve (25) and Electric Actuated Stop Valves D(26), Electric Actuated Stop Valves E(27) while overflowing, close Electric Actuated Stop Valves D(26), Electric Actuated Stop Valves E(27) and outlet valve (25), slowly increase again the aperture of manual modulation valve (5) to maximum, after stablizing 5 minutes, open Electric Actuated Stop Valves A(4), close Electric Actuated Stop Valves B(8), cross after 2 minutes, open Electric Actuated Stop Valves C(9), the aperture of manual modulation valve (5) is adjusted to minimum, work initial state is set up complete.
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|---|---|---|---|
| CN201210384577.8A CN103727140B (en) | 2012-10-11 | 2012-10-11 | The passive supercharging voltage-stabilizing system of water lubrication main pump bearing cavitation abrasion can be alleviated |
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| CN201210384577.8A CN103727140B (en) | 2012-10-11 | 2012-10-11 | The passive supercharging voltage-stabilizing system of water lubrication main pump bearing cavitation abrasion can be alleviated |
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| CN103727140A true CN103727140A (en) | 2014-04-16 |
| CN103727140B CN103727140B (en) | 2016-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654375A (en) * | 2019-01-30 | 2019-04-19 | 中国科学技术大学 | A kind of safe feeding device and its air supply method of high pressure combustibility experimental gas |
| CN110332130A (en) * | 2019-07-17 | 2019-10-15 | 福建福清核电有限公司 | A kind of online device and method for improving reactor coolant pump shafting stability |
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| US6655932B1 (en) * | 1999-06-01 | 2003-12-02 | Kvaerner Eureka As | Pressure impacted cooling and lubrication unit |
| CN101079333A (en) * | 2006-05-26 | 2007-11-28 | 中国核动力研究设计院 | Nuclear reactor non-energy and multi-function pool voltage-stabling system |
| CN201111966Y (en) * | 2007-09-30 | 2008-09-10 | 中国原子能科学研究院 | Water cooling system of sodium-cooled fast reactor sodium circulating pump |
| JP2009144563A (en) * | 2007-12-12 | 2009-07-02 | Torishima Pump Mfg Co Ltd | Non-water-injection bearing device for horizontal shaft pump |
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| US6655932B1 (en) * | 1999-06-01 | 2003-12-02 | Kvaerner Eureka As | Pressure impacted cooling and lubrication unit |
| CN101079333A (en) * | 2006-05-26 | 2007-11-28 | 中国核动力研究设计院 | Nuclear reactor non-energy and multi-function pool voltage-stabling system |
| CN201111966Y (en) * | 2007-09-30 | 2008-09-10 | 中国原子能科学研究院 | Water cooling system of sodium-cooled fast reactor sodium circulating pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109654375A (en) * | 2019-01-30 | 2019-04-19 | 中国科学技术大学 | A kind of safe feeding device and its air supply method of high pressure combustibility experimental gas |
| CN110332130A (en) * | 2019-07-17 | 2019-10-15 | 福建福清核电有限公司 | A kind of online device and method for improving reactor coolant pump shafting stability |
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| Publication number | Publication date |
|---|---|
| CN103727140B (en) | 2016-07-06 |
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