CN111155800A - Layout design method for electric boiler room of nuclear power station - Google Patents
Layout design method for electric boiler room of nuclear power station Download PDFInfo
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- CN111155800A CN111155800A CN202010004578.XA CN202010004578A CN111155800A CN 111155800 A CN111155800 A CN 111155800A CN 202010004578 A CN202010004578 A CN 202010004578A CN 111155800 A CN111155800 A CN 111155800A
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Abstract
The invention belongs to the technical field of nuclear power station electric boiler plant design, and particularly relates to an arrangement design method of an electric boiler room of a nuclear power station, wherein the electric boiler room comprises a ground first floor and a ground second floor which are communicated by a staircase (3), a boiler room (1) for placing an electric boiler (13) is arranged in the middle of the ground first floor, a power transformation and distribution room (2) is arranged on one side of the boiler room (1), and the staircase (3), an instrument power distribution control room (4) and an equipment room (5) are sequentially arranged on the other side of the boiler room; the second floor above the ground comprises a duty office (9) and an oxygen removing room (12) which are positioned above the instrument power distribution control room (4) and the equipment room (5) and are communicated through a corridor (8), and further comprises an outdoor cooling pool (6) positioned on the ground except the first floor above the ground. The arrangement design method of the electric boiler room of the nuclear power station can enable the electric boiler to be used as an auxiliary boiler of the nuclear power station and be widely applied to third-generation nuclear power units.
Description
Technical Field
The invention belongs to the technical field of nuclear power station electric boiler plant design, and particularly relates to a layout design method of an electric boiler room of a nuclear power station.
Background
In a nuclear power station, an auxiliary boiler is used for providing auxiliary steam for an auxiliary steam supply system and is mainly used for providing steam for a deaerator, a steam turbine shaft seal system, an auxiliary water supply deaerator and a hot water production and distribution system of a conventional island before a nuclear island unit is normally put into operation; supplying steam to a three-waste system of the nuclear island and an auxiliary water supply steam-driven pump; each nuclear power station is provided with a boiler room for arranging an electric boiler, auxiliary equipment and matched pipelines thereof. On the premise of ensuring the complete function of the system, the nuclear power unit is started and operated, and if the air extraction of the main steam turbine can not meet the user requirement, the auxiliary boiler is put into operation.
The working temperature of the heat equipment and the heat distribution pipeline in the auxiliary boiler room is about 188 ℃, and the highest working pressure of the pipeline equipment is 1.2MPa (a). In order to avoid scalding workers, steam exhaust pipelines of the auxiliary boiler and the deaerator safety valve and a steam exhaust pipeline of the blow-off box are connected to the outside of the plant. In the range that personnel can contact, still need to take scald preventing measures, carry out the heat preservation with rock wool and handle. The part that needs to prevent scalding personnel sets up scald preventing and keeps warm in following within range: the height of the pipeline from the ground or the platform is less than 2 m; the horizontal distance of the operation platform is less than 0.75 m. The auxiliary boiler and the pipeline are provided with heat preservation so as to reduce the heat loss of the pipeline and the equipment to the surrounding environment, and the main function is to reduce the heat loss of the heat supply medium and save energy in the conveying process.
A certain number of safety valves are arranged on equipment such as an auxiliary boiler and a deaerator, and when the equipment is in overpressure, the safety valves jump to protect the equipment and pipelines. In places where production operations and maintenance personnel are more concentrated, such as control rooms and maintenance rooms, these workshops are provided with adequate ventilation and air conditioning facilities and do not allow the passage of thermal conduits therethrough. Necessary ventilation or air conditioning facilities are added to workshops with large heat productivity and high air temperature of indoor equipment, such as an oxygen removal workshop, a power distribution room and the like.
The automatic control system of the auxiliary boiler has perfect functions and high automation level, and operators do not need to go to field operation equipment or switch valves during normal operation, so that the potential possibility of being scalded during operation of the operators is reduced. In order to prevent the working parameters of a thermodynamic system and related equipment from exceeding limits and endangering the safe operation of high-temperature and high-pressure equipment of the system, overtemperature and overpressure alarm interlocking protection measures are taken into consideration in the design of an instrument and a control system.
Disclosure of Invention
Aiming at the condition that an auxiliary boiler room arranged in the current nuclear power station is not suitable for a third-generation nuclear power unit, the invention aims to provide a layout design method of an electric boiler room suitable for the third-generation nuclear power unit.
In order to achieve the purposes, the technical scheme adopted by the invention is an arrangement design method of an electric boiler room of a nuclear power station, wherein the electric boiler room comprises a ground first floor and a ground second floor which are communicated by a staircase, a boiler room for placing an electric boiler is arranged in the middle of the ground first floor, a power transformation and distribution room is arranged on one side of the boiler room, and the staircase, an instrument power distribution control room and an equipment room are sequentially arranged on the other side of the boiler room; the second floor on the ground is including being located the instrument distribution control room with between the office on duty and the deoxidization of passing through the corridor intercommunication of equipment top, still including being located the subaerial outdoor cooling pond outside the one-tenth on the ground.
Furthermore, a toilet and a bathroom are arranged between the office on duty and the deoxidizing room.
Furthermore, an electric boiler and a circulating pump are arranged on the ground of the boiler room, a steel platform convenient for personnel to operate and maintain the electric boiler is arranged around the electric boiler, and the height of the steel platform is the same as that of the instrument power distribution control room and the equipment room; and a crane for hoisting equipment is arranged at the top of the boiler room.
Further, the number of the electric boilers is 2, and the number of the circulating pumps is 6.
Furthermore, a deaerator is arranged in the deaerating room.
Further, be equipped with charge device in boiler feed pump and the boiler furnace of one-to-one in the equipment room, including 3 boiler feed pump and 3 charge device in the boiler furnace still is equipped with oxygen-eliminating device charge device and blow off case.
Further, an instrument power distribution control cabinet is arranged in the instrument power distribution control room.
Furthermore, a transformer and a switch cabinet are arranged in the power transformation and distribution chamber.
Further, the outdoor cooling pool is located on the ground outside the wall body of the equipment room.
Further, the length and width of the electric boiler room are 6m multiplied by 6 m.
The invention has the beneficial effects that:
the electric boiler is simple, high in reliability, simple and convenient to operate and few in auxiliary equipment, and the main equipment comprises the electric boiler, a deaerator, a sewage discharge tank, a circulating pump, a water feeding pump, a chemical feeding tank, a special transformer and the like. On the premise of ensuring the functions of all systems in the plant, reasonably arranging the equipment in the plant; the electric boiler is simple to operate and maintain and high in technical performance in all aspects. Considering that the operating time of the auxiliary boiler of the nuclear power station is not long, and the technical performance and the economical efficiency of the oil boiler and the electric boiler are comprehensively considered, the selection of the electric boiler by the auxiliary boiler of the nuclear power station is more advantageous, and the arrangement design method of the electric boiler room of the nuclear power station provided by the invention can enable the electric boiler to be used as the auxiliary boiler of the nuclear power station and be widely applied to a third-generation nuclear power unit.
Drawings
FIG. 1 is a plan view of an above-ground floor of an electric boiler house according to an embodiment of the present invention;
FIG. 2 is a top plan view of the two floors above the ground of the electric boiler room according to the embodiment of the present invention;
FIG. 3 is a side view of an electric boiler room according to an embodiment of the present invention;
in the figure: 1-boiler room, 2-transformer distribution room, 3-stairwell, 4-instrument distribution control room, 5-equipment room, 6-outdoor cooling pool, 7-stairwell, 8-corridor, 9-duty office, 10-toilet, 11-bathroom, 12-deoxidizing room, 13-electric boiler, 14-boiler feed water pump, 15-boiler in-furnace chemical feeding device, 16-deaerator and 17-crane.
Detailed Description
The invention is further described below with reference to the figures and examples.
The invention provides a layout design method of an electric boiler room of a nuclear power station, wherein the electric boiler room is an independent building and comprises a ground first floor and a ground second floor, and the ground first floor and the ground second floor are communicated through a staircase 3. An electric boiler, auxiliary equipment and matched pipelines thereof are arranged in the auxiliary boiler room and are shared by the whole plant; the main function of the system is to provide qualified steam for the auxiliary steam system when the unit is started and stopped, so as to be used by each auxiliary steam user. The length and width of the electric boiler room are 6m multiplied by 6 m.
The middle part of the ground floor is provided with a boiler room 1 for placing an electric boiler 13, one side of the boiler room 1 is provided with a power transformation and distribution room 2, and the other side is sequentially provided with a staircase room 3, an instrument power distribution control room 4 and an equipment room 5.
An electric boiler 13 and a circulating pump are arranged on the ground of the boiler room 1, a steel platform 18 convenient for personnel to operate and maintain the electric boiler 13 is arranged around the electric boiler 13, and the height of the steel platform 18 is the same as that of the instrument power distribution control room 4 and the equipment room 5; the top of the boiler room 1 is provided with a crane 17 for hoisting equipment. The number of the electric boilers 13 is 2, and the number of the circulating pumps is 6.
A transformer and a switch cabinet are arranged in the power transformation and distribution room 2. An instrument power distribution control cabinet is arranged in the instrument power distribution control room 4.
Be equipped with in the equipment room 5 boiler feed water pump 14 and the boiler in charge device 15 of one-to-one, charge device 15 in 3 boiler feed water pumps 14 and 3 boilers still is equipped with oxygen-eliminating device charge device and blow off tank.
The second floor above the ground comprises an office on duty 9 and an oxygen removal booth 12 communicating through a corridor 8. A toilet 10 and a bath room 11 are also provided between the office on duty 9 and the oxygen removal booth 12. The corridor 8, the office on duty 9, the toilet 10, the bathroom 11, and the oxygen removal room 12 are located above the instrument panel 4 and the equipment room 5.
A deaerator 16 is provided in the deaerating compartment 12.
The electric boiler room also comprises an outdoor cooling pool 6 which is positioned on the ground and is arranged outside the ground layer, the blow-off at the bottom of the boiler, the surface blow-off and the overflow of the deaerator are all discharged into a blow-off box, mixed with the cooling water of the production water system and cooled to below 60 ℃, then discharged into the outdoor cooling pool 6, mixed with the cooling water of the production water system and cooled, and then discharged into a power station sewage system. The outdoor cooling pool 6 is positioned on the ground outside the wall body of the equipment room 5.
The device according to the present invention is not limited to the embodiments described in the specific embodiments, and those skilled in the art can derive other embodiments according to the technical solutions of the present invention, and also belong to the technical innovation scope of the present invention.
Claims (10)
1. A layout design method of an electric boiler room of a nuclear power station is characterized by comprising the following steps: the electric boiler room comprises a first floor and a second floor which are communicated by a staircase room (3), a boiler room (1) for placing an electric boiler (13) is arranged in the middle of the first floor, a power transformation and distribution room (2) is arranged on one side of the boiler room (1), and the staircase room (3), an instrument power distribution control room (4) and an equipment room (5) are sequentially arranged on the other side of the boiler room; the second floor on the ground is including being located instrument distribution control room (4) with between (12) in the office on duty (9) and the deoxidization through corridor (8) intercommunication above equipment room (5), still including being located subaerial outdoor cooling pond (6) outside the one deck on the ground.
2. The layout design method of claim 1 wherein: a toilet (10) and a bath room (11) are also arranged between the duty office (9) and the oxygen removal room (12).
3. The layout design method of claim 2 wherein: an electric boiler (13) and a circulating pump are arranged on the ground of the boiler room (1), a steel platform (18) convenient for personnel to operate and maintain the electric boiler (13) is arranged around the electric boiler (13), and the height of the steel platform (18) is the same as that of the instrument power distribution control room (4) and the equipment room (5); and a crane (17) for hoisting equipment is arranged at the top of the boiler room (1).
4. The layout design method of claim 3 wherein: the number of the electric boilers (13) is 2, and the number of the circulating pumps is 6.
5. The layout design method of claim 1 wherein: a deaerator (16) is arranged in the deaerating room (12).
6. The layout design method of claim 1 wherein: be equipped with in equipment room (5) boiler feed pump (14) and the boiler in charge device (15) of one-to-one, including 3 boiler feed pump (14) and 3 charge device (15) in the boiler still are equipped with oxygen-eliminating device charge device and blow off box.
7. The layout design method of claim 1 wherein: and a cable tray and an instrument power distribution control cabinet are arranged in the instrument power distribution control room (4).
8. The layout design method of claim 1 wherein: and a transformer and a switch cabinet are arranged in the power transformation and distribution room (2).
9. The layout design method of claim 1 wherein: the outdoor cooling pool (6) is positioned on the ground outside the wall body of the equipment room (5).
10. The layout design method of claim 1 wherein: the length and width of the electric boiler room are 6m multiplied by 6 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004578.XA CN111155800A (en) | 2020-01-03 | 2020-01-03 | Layout design method for electric boiler room of nuclear power station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004578.XA CN111155800A (en) | 2020-01-03 | 2020-01-03 | Layout design method for electric boiler room of nuclear power station |
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| CN111155800A true CN111155800A (en) | 2020-05-15 |
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| CN202010004578.XA Pending CN111155800A (en) | 2020-01-03 | 2020-01-03 | Layout design method for electric boiler room of nuclear power station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536498A (en) * | 2020-06-11 | 2020-08-14 | 西安热工研究院有限公司 | Rapid starting control system and method for electric boiler of nuclear power plant |
| CN114484405A (en) * | 2022-01-19 | 2022-05-13 | 中国核电工程有限公司 | Nuclear power station electric boiler modularization system and factory building layout |
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| CN103352587A (en) * | 2013-06-28 | 2013-10-16 | 河南中烟工业有限责任公司 | Integrated power station building |
| CN203998855U (en) * | 2014-06-26 | 2014-12-10 | 河南中烟工业有限责任公司 | A kind of Maintenance of Boiler platform |
| CN104860245A (en) * | 2015-05-29 | 2015-08-26 | 河南中烟工业有限责任公司 | Boiler two-stage economizer overhauling platform |
| CN205370033U (en) * | 2015-12-18 | 2016-07-06 | 广东粤电大埔发电有限公司 | Between power plant electronic equipment |
| CN110409878A (en) * | 2019-06-27 | 2019-11-05 | 中国核电工程有限公司 | A kind of arragement construction of nuclear power station oil or gas boiler room |
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2020
- 2020-01-03 CN CN202010004578.XA patent/CN111155800A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352587A (en) * | 2013-06-28 | 2013-10-16 | 河南中烟工业有限责任公司 | Integrated power station building |
| CN203998855U (en) * | 2014-06-26 | 2014-12-10 | 河南中烟工业有限责任公司 | A kind of Maintenance of Boiler platform |
| CN104860245A (en) * | 2015-05-29 | 2015-08-26 | 河南中烟工业有限责任公司 | Boiler two-stage economizer overhauling platform |
| CN205370033U (en) * | 2015-12-18 | 2016-07-06 | 广东粤电大埔发电有限公司 | Between power plant electronic equipment |
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| 刘锦华等: "《岭澳核电工程实践与创新》", 31 May 2002, 原子能出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536498A (en) * | 2020-06-11 | 2020-08-14 | 西安热工研究院有限公司 | Rapid starting control system and method for electric boiler of nuclear power plant |
| CN111536498B (en) * | 2020-06-11 | 2021-11-09 | 西安热工研究院有限公司 | Rapid starting control system and method for electric boiler of nuclear power plant |
| CN114484405A (en) * | 2022-01-19 | 2022-05-13 | 中国核电工程有限公司 | Nuclear power station electric boiler modularization system and factory building layout |
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Application publication date: 20200515 |
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