CN102192819A - Quick heating process for pre-service hydrostatic test of secondary side of steam generator - Google Patents
Quick heating process for pre-service hydrostatic test of secondary side of steam generator Download PDFInfo
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- CN102192819A CN102192819A CN 201010130479 CN201010130479A CN102192819A CN 102192819 A CN102192819 A CN 102192819A CN 201010130479 CN201010130479 CN 201010130479 CN 201010130479 A CN201010130479 A CN 201010130479A CN 102192819 A CN102192819 A CN 102192819A
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- heating
- secondary side
- steam generator
- water tank
- water
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Abstract
The invention belongs to the field of pressurized water reactor nuclear power plants, and specifically discloses a quick heating process for a pre-service hydrostatic test of the secondary side of a steam generator. The process comprises the following steps: communicating a high-position temporary connection pipe with a high-position temporary interface, and communicating a hand hole temporary connection pipe with a hand hole temporary interface; filling the secondary side with cooled demineralized water; opening a water inlet pipe isolation valve, and pouring the demineralized water into a heating water tank; closing the water inlet pipe isolation valve, a hand hole temporary interface drain valve and a high-position temporary interface exhaust valve; starting a circulating pump, and when the water flow in the circulating backflow pipe reaches a certain flow rate, starting the heating water tank; pouring the heated demineralized water into the secondary side by the circulating pump, wherein the heated demineralized water and the demineralized water in the secondary side are mixed and flow back to the heating water tank for circular heating; and when the temperature of a shell of the secondary side reaches the regulated temperature range, stopping heating of the heating water tank. The process provided by the invention can realize quick and uniform heating of the shell of the secondary side of the steam generator.
Description
Technical field
The invention belongs to PWR nuclear power plant (pressurized-water reactor nuclear power plant) field, be specifically related to be applied to the preceding steam generator secondary side housing heating process of PWR nuclear power plant (station) the steam generator secondary side hydraulic testing.
Background technology
The hydraulic testing is important node and the milestone in the PWR nuclear power plant nuclear island equipment erection schedule before the steam generator secondary side labour.According to the testing regulations of this test, before pressure build-up test, the steam generator secondary side housing must be risen to uniform temperature, and guarantee to boost in steam generator secondary side, temperature that the temperature in the release process of the test is not less than the case material embrittlement.
The hydraulic testing before the steam generator secondary side of the nuclear power station labour in the past all is to provide provisional package system to carry out this test by nuclear power technology support company in the world.The intensification of its steam generator shell is to consider to realize by the method that directly fills hot water.Mainly there are the following problems for this temperature-rising method: because the steam generator secondary side water consumption is very big, its required hot water that heats up can't disposablely be filled with continuously, can only realize by modes such as large-scale tank car segmentation heating water fillings; Because the area of dissipation of steam generator secondary side is bigger, the hot water that is filled before often finding when follow-up hot water fills has been cooled, thereby causes the efficiency of heating surface very low; Required temperature elevation system complexity and the occupation space of this method is bigger; The on-the-spot temporary interface of the required temperature elevation system of this method is more, poor stability, required test operation personnel are more.
Summary of the invention
The object of the present invention is to provide before a kind of steam generator secondary side labour hydraulic testing technology that is rapidly heated, this technology can realize the steam generator secondary side housing fast, evenly heat up.
Realize the technical scheme of the object of the invention: the hydraulic testing technology that is rapidly heated before a kind of steam generator secondary side labour, it may further comprise the steps:
(1) the interim adapter of a high position is communicated with high-order temporary interface, the interim adapter of hand hole is connected with the hand hole temporary interface;
(2) in steam generator secondary side, fill with the demineralized water of cooling;
(3) open the water inlet pipe isolation valve, demineralized water is injected in the heating water tank;
(4) close water inlet pipe isolation valve, hand hole temporary interface drain valve and high-order temporary interface air release;
(5) start ebullator, when the current in the circulating reflux pipe reach certain flow, start heating water tank, the demineralized water in it is heated;
(6) ebullator will be in the heating water tank in the demineralized water steam in jection generator secondary side through heating, and the interior demineralized water of the demineralized water after the heating and steam generator secondary side flows back to the heating water tank heating that circulates after mixing;
(7) when the steam generator secondary side case temperature reaches the temperature range of regulation, heating water tank stops heating.
In the circulation heating process of described step (6), disconnect and open the water tank air release to discharge the gas that discharges in the demineralized water.
Useful technique effect of the present invention: technology of the present invention is directly filled with cold water (demineralized water) in steam generator secondary side, the high power density electric heating water tank provides thermal source for the heat cycles loop, by the heating that directly circulates of circulation heating process system, demineralized water in the steam generator is circulated heating so that the quick, even of steam generator secondary side housing heats up, can in 24 hours time, the steam generator secondary side case temperature evenly be risen to more than 45 ℃ by 15 ℃.And adopt ebullator and high power density electric heating water tank to the demineralized water heating that circulates, and efficiency of heating surface height, its efficiency of heating surface improves 1 times at least compared with prior art.
Description of drawings
Fig. 1 tries to be rapidly heated the process system synoptic diagram for the preceding hydraulic pressure of a kind of steam generator secondary side labour provided by the present invention.
Among the figure: 1. steam generator secondary side; 2. steam generator secondary side hand hole temporary interface; 3. the high-order temporary interface of steam generator secondary side; 4. high power density electric heating water tank; 5. ebullator; 6. water tank return pipe; 7. the first circulation heating hose; 8. second high pressure isolation valve; 9. radiator drain; 10. heat cycles flowmeter; 11. the second circulation heating hose; 12. first high pressure isolation valve; 13. high-order interim the adapter; 14. hand hole is taken over temporarily; 15. high-order interim air release; 16. the interim drain valve of hand hole; 17. water tank gas outlet; 18. water tank air release; 19. funnel; 20. the hydrophobic isolation valve of funnel; 21. system's drainage interface; 22. circulating reflux pipe; 23. ebullator reverse flow valve; 24. water inlet pipe; 25. water inlet pipe isolation valve; 26. system's water inlet interface.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
As shown in Figure 1, the hydraulic pressure examination process system that is rapidly heated before a kind of steam generator secondary side labour, it comprises high power density electric heating water tank 4, ebullator 5, the first circulation heating hose 7, second high pressure isolation valve 8, heat cycles flowmeter 10, the second circulation heating hose 11, first high pressure isolation valve 12, high-orderly takes over 13 temporarily, hand hole takes over 14 temporarily, high-order temporary interface air release 15, the interim drain valve 16 of hand hole, funnel 19, the hydrophobic isolation valve 20 of funnel, system's drainage interface 21, circulating reflux pipe 22 and ebullator reverse flow valve 23.
As shown in Figure 1, high power density electric heating water tank 4 bottoms are provided with radiator drain 9, water tank return pipe 6, water inlet pipe 24 respectively.Water inlet pipe 24 is provided with water inlet pipe isolation valve 25, and suspend end and the system of water inlet pipe 24 interface 26 of intaking is communicated with.The top of high power density electric heating water tank 4 is provided with gas outlet 17, this gas outlet 17 is provided with water tank air release 18, the outlet of water tank gas outlet 17 is provided with a funnel 19, and the outlet of this funnel 19 is connected with system drainage interface 21 by the hydrophobic isolation valve 20 of funnel.
As shown in Figure 1, the suction inlet of ebullator 5 is communicated with high power density electric heating water tank 4 bottoms by radiator drain 9, and the outlet of ebullator 5 is taken over 14 by circulating reflux pipe 22, the second circulation heating hose 11, hand hole successively temporarily and is connected with steam generator secondary side hand hole temporary interface 2.Circulating reflux pipe 22 is provided with heat cycles flowmeter 10, hand hole is interim to be taken over 21 and is provided with first high pressure isolation valve 12, and hand hole is taken on 21 and at the second circulation heating hose 11 and have and be provided with the interim drain valve 16 of hand hole between first high pressure isolation valve 12 temporarily.Between the outlet of ebullator 5 and suction inlet recirculatory pipe is set, recirculatory pipe is provided with ebullator reverse flow valve 23.
As shown in Figure 1, high power density electric heating water tank 4 is by return pipe 6, the first circulation heating hose 7, the high-order interim 13 formation heat cycles return pipings that are connected with the high-order temporary interface 3 of steam generator secondary side of taking over.High-order interim adapter 13 is provided with second high pressure isolation valve 8, and a high position is taken on 13 temporarily and be provided with high-order temporary interface air release 15 between the first circulation heating hose 7 and second high pressure isolation valve 8.
As shown in Figure 1, the hydraulic testing technology that is rapidly heated before a kind of steam generator secondary side labour, it may further comprise the steps:
(1) takes over 13 and is communicated with a high position is interim, hand hole adapter temporarily 14 is connected with steam generator secondary side hand hole temporary interface 2 with the high-order temporary interface 3 of steam generator secondary side;
(2) in steam generator secondary side 1, fill with the demineralized water of cooling;
(3) open water inlet pipe isolation valve 25, demineralized water is injected in the heating water tank 4 by system's water inlet interface 26, water inlet pipe 24;
(4) close water inlet pipe isolation valve 25, hand hole temporary interface drain valve 16 and high-order temporary interface air release 15;
(5) start ebullator 5, start heating water tank 4 when the current in the circulating reflux pipe 22 reach certain flow, electric heating water tank 4 heats the demineralized water in it;
The heating power scope of electric heating water tank 4 is 10kw～800kw, and the heating power of electric heating water tank 4 can be chosen 10kw, 100kw, 200kw, 300kw, 405kw, 500kw, 600kw, 700kw or 800kw.The range of lift of ebullator 5: 20m～100m; Can choose lift is the ebullator 5 of 20m, 40m, 60m, 80m or 100m.Current in the circulating reflux pipe 22 that records of heat cycles flowmeter 10 reach 10m
3/ h～100m
3During/h, open electric heater in the heating water tank 4, demineralized water in the heating water tank 4 is heated.For example, the current in the circulating reflux pipe 22 reach 10m
3/ h, 30m
3/ h, 55m
3/ h, 80m
3/ h or 100m
3During/h, open electric heater in the heating water tank 4.
(6) ebullator 5 will heating water tank in 4 in the demineralized water steam in jection generator secondary sides 1 through heating, and the demineralized water after the heating and steam generator secondary side 1 interior demineralized water flows back to heating water tank 4 heating that circulates after mixing;
Ebullator 5 with in the heating water tank 4 through the demineralized water of heating successively through radiator drain 9, circulating reflux pipe 22, the second circulation heating hose 11, hand hole take over 14 temporarily, in the steam generator secondary side hand hole temporary interface 2 steam in jection generator secondary sides 1.Flow out in the heating water tank 4 through the demineralized water in the demineralized water of heating and the steam generator secondary side 1 after mixing, adapter 13, the first circulation heating hose 7, return pipe 6 flow back to heating water tank 4 heating that circulates temporarily through a high position successively after being flowed out by the high-order interim access port 3 of steam generator.
In the circulation heating process, can be interrupted and open water tank air release 17 to discharge the gas that discharges in the demineralized water.After becoming liquid, the gas cooled that water tank air release 17 is discharged discharges through funnel 19, the hydrophobic isolation valve 20 of funnel, system's drainage interface 21 successively.
(7) when steam generator secondary side 1 case temperature reaches the temperature range of regulation, heating water tank 4 stops heating.
When steam generator secondary side 1 housing is heated to 30 ℃～70 ℃ of the temperature ranges of regulation, close the electric heater in the heating water tank 4, close ebullator 5, close first high pressure isolation valve 12 and second high pressure isolation valve 8, the hydraulic testing process that is rapidly heated finishes before the steam generator secondary side labour.For example, when steam generator secondary side 1 housing is heated 30 ℃, 40 ℃, 50 ℃, 60 ℃ or 70 ℃, close the electric heater in the heating water tank 4, close ebullator 5, close first high pressure isolation valve 12 and second high pressure isolation valve 8, the hydraulic testing process that is rapidly heated finishes before the steam generator secondary side labour.
In conjunction with the accompanying drawings embodiments of the invention have been done detailed description above, but the present invention is not limited to the foregoing description, in the ken that those of ordinary skills possessed, can also under the prerequisite that does not break away from aim of the present invention, makes various variations.The content that is not described in detail in the instructions of the present invention all can adopt prior art, and for example electric heating water tank 4, ebullator 5, heat cycles flowmeter 10 etc. all can adopt the product of any model in the prior art.
Claims (2)
1. the hydraulic testing technology that is rapidly heated before the steam generator secondary side labour, it is characterized in that: it may further comprise the steps:
(1) high position is taken over (13) temporarily be communicated with, hand hole is taken over (14) temporarily and be connected with hand hole temporary interface (2) with high-order temporary interface (3);
(2) in steam generator secondary side (1), fill with the demineralized water of cooling;
(3) open water inlet pipe isolation valve (25), demineralized water is injected in the heating water tank (4);
(4) close water inlet pipe isolation valve (25), hand hole temporary interface drain valve (16) and high-order temporary interface air release (15);
(5) start ebullator (5), when the current in the circulating reflux pipe (22) reach certain flow, start heating water tank (4), the demineralized water in it is heated;
(6) ebullator (5) will heating water tank (4) in the demineralized water steam in jection generator secondary side (1) through heating, the interior demineralized water of the demineralized water after the heating and steam generator secondary side (1) flows back to heating water tank (4) heating that circulates after mixing;
(7) when steam generator secondary side (1) case temperature reaches the temperature range of regulation, heating water tank (4) stops heating.
2. the hydraulic testing technology that is rapidly heated before the steam generator secondary side labour is characterized in that: it is characterized in that: in the circulation heating process of described step (6), disconnect and open water tank air release (17) to discharge the gas that discharges in the demineralized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010130479 CN102192819B (en) | 2010-03-11 | 2010-03-11 | Quick heating process for pre-service hydrostatic test of secondary side of steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010130479 CN102192819B (en) | 2010-03-11 | 2010-03-11 | Quick heating process for pre-service hydrostatic test of secondary side of steam generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102192819A true CN102192819A (en) | 2011-09-21 |
| CN102192819B CN102192819B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010130479 Active CN102192819B (en) | 2010-03-11 | 2010-03-11 | Quick heating process for pre-service hydrostatic test of secondary side of steam generator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219126A (en) * | 2017-06-02 | 2017-09-29 | 上海森松压力容器有限公司 | Hydraulic test of pressure vessel device and method |
| CN108278586A (en) * | 2018-03-14 | 2018-07-13 | 西安热工研究院有限公司 | A kind of system and method for HTGR Nuclear Power Plant primary Ioops heating and dehumidification |
| CN109799142A (en) * | 2018-12-20 | 2019-05-24 | 中广核核电运营有限公司 | Nuclear power station water pressure test loop heating system and circular heating method |
| CN110579405A (en) * | 2019-08-29 | 2019-12-17 | 中广核核电运营有限公司 | Auxiliary water supply system of nuclear power station and heating method thereof |
| CN111351021A (en) * | 2018-12-21 | 2020-06-30 | 核动力运行研究所 | Method for preheating tube plate of steam generator secondary side hydrostatic test |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1052417A (en) * | 1963-03-25 | |||
| DE2511237B2 (en) * | 1974-03-18 | 1978-01-12 | STEAM GENERATOR PLANT WITH A NUCLEAR REACTOR | |
| CN85106902A (en) * | 1985-09-13 | 1987-03-11 | 西屋电气公司 | Has the model steam generator of being convenient to check the sample pipeline |
| JP2011147880A (en) * | 2010-01-21 | 2011-08-04 | Nomura Micro Sci Co Ltd | Method and apparatus for production of purified water for medicine |
-
2010
- 2010-03-11 CN CN 201010130479 patent/CN102192819B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1052417A (en) * | 1963-03-25 | |||
| DE2511237B2 (en) * | 1974-03-18 | 1978-01-12 | STEAM GENERATOR PLANT WITH A NUCLEAR REACTOR | |
| CN85106902A (en) * | 1985-09-13 | 1987-03-11 | 西屋电气公司 | Has the model steam generator of being convenient to check the sample pipeline |
| JP2011147880A (en) * | 2010-01-21 | 2011-08-04 | Nomura Micro Sci Co Ltd | Method and apparatus for production of purified water for medicine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219126A (en) * | 2017-06-02 | 2017-09-29 | 上海森松压力容器有限公司 | Hydraulic test of pressure vessel device and method |
| CN107219126B (en) * | 2017-06-02 | 2024-03-22 | 上海森永工程设备股份有限公司 | Pressure vessel hydrostatic test device and method |
| CN108278586A (en) * | 2018-03-14 | 2018-07-13 | 西安热工研究院有限公司 | A kind of system and method for HTGR Nuclear Power Plant primary Ioops heating and dehumidification |
| CN109799142A (en) * | 2018-12-20 | 2019-05-24 | 中广核核电运营有限公司 | Nuclear power station water pressure test loop heating system and circular heating method |
| CN109799142B (en) * | 2018-12-20 | 2021-11-09 | 中广核核电运营有限公司 | Circulating heating system and circulating heating method for nuclear power station hydrostatic test |
| CN111351021A (en) * | 2018-12-21 | 2020-06-30 | 核动力运行研究所 | Method for preheating tube plate of steam generator secondary side hydrostatic test |
| CN110579405A (en) * | 2019-08-29 | 2019-12-17 | 中广核核电运营有限公司 | Auxiliary water supply system of nuclear power station and heating method thereof |
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| Publication number | Publication date |
|---|---|
| CN102192819B (en) | 2013-03-20 |
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