CN208858456U - A kind of nuclear power station auxiliary steam and emergency power supply joint supply system - Google Patents
A kind of nuclear power station auxiliary steam and emergency power supply joint supply system Download PDFInfo
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- CN208858456U CN208858456U CN201821191131.2U CN201821191131U CN208858456U CN 208858456 U CN208858456 U CN 208858456U CN 201821191131 U CN201821191131 U CN 201821191131U CN 208858456 U CN208858456 U CN 208858456U
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Abstract
The utility model provides a kind of nuclear power station auxiliary steam and emergency power supply joint supply system, including gas turbine, waste heat boiler and generator, gas turbine includes the compressor being sequentially communicated, combustion chamber and combustion gas turbine, and the power output shaft of the combustion gas turbine connects the generator after compressor；The compressor generates high-temperature flue gas for burning fuel for generating pressure-air, the combustion chamber, and the combustion gas turbine is done work by high-temperature flue gas and generator is driven to generate electricity, for use as emergency service；The waste heat boiler connects combustion gas turbine, for water to be heated into water vapour using the useless high-temperature flue gas being discharged after combustion gas turbine acting, for use as auxiliary steam.The joint supply of auxiliary steam and emergency power supply may be implemented in nuclear power station auxiliary steam and emergency power supply joint supply system provided by the utility model, and the reliability of nuclear power station emergency power supply can be improved, and promotes Nuclear Power Station economy.
Description
Technical field
The utility model relates to nuclear power station energy recycling technical field more particularly to a kind of nuclear power station auxiliary steam and
Emergency power supply joint supply system.
Background technique
Safety is the lifeline of nuclear power station, and according to the design principle of depth defense, nuclear power station configures multiple superfluous in equipment
Remaining and protection.Wherein, power supply is the power source of nuclear power plant equipment operation, and the reliability of power supply is most important to nuclear plant safety.
For the reliability for guaranteeing nuclear power station power-supply system, nuclear power station has the equipment of important electrical equipment or particular/special requirement and answers urgent telegram
Source, while being arranged with carrying out multiplicity, independence, lead to the unavailable of emergency power supply to avoid common mode failure occurs.
As shown in Figure 1, CPR1000 nuclear power station emergency system mainly includes that diesel generating set and factory site add diesel generation
Unit, wherein factory site additional diesel generator group shares for factory site, is unable to satisfy same factory site multicomputer power loss accident requirement；When
Occur under the situations such as water supply, tsunami, mud-rock flow, the electrical system of stationary diesel engine would be possible to fail because of water logging, cause
Diesel generating set can not start, this will lead to nuclear power plant and catastrophic effect occurs；Meanwhile emergency diesel dynamo is in positive reason
Hot stand-by duty is under condition, operation and maintenance cost are high, and Nuclear Power Station, operation grade is caused to reduce.
Auxiliary Steam has highly important effect in nuclear power plant, in nuclear power station starting, operates normally and stops
During fortune, load rejection, when steam converter system cannot work or cannot meet the needs, it will be removed for power station is all
Oxygen and heating load provide the auxiliary steam of saturation.Since nuclear power plant generally builds in remote suburb, there is no vapour source nearby, so
Auxiliary steam could be provided for Auxiliary Steam by only building starting trouble.
The starting trouble of nuclear power station Auxiliary Steam includes oil burning boiler and electric boiler at present, and still, oil burning boiler is set
Standby starting is slow, and underrun performance is poor, trivial operations, and easy to wear and perishable component is more, and maintenance is many and diverse,
Need overhaul primary every year.Oil burning boiler is compared, electric boiler is with the obvious advantage.But electric boiler operating cost is extremely expensive, only presses phase
Same considers that the grid electricity fee cost of electric boiler is oil burning boiler diesel oil cost more than twice with vapour demand, and nuclear power is caused to build warp
The decline of Ji property.
Utility model content
The utility model provides aiming at the problem that power supply of above-mentioned emergency power supply in the prior art and Auxiliary Steam steam supply
A kind of nuclear power station auxiliary steam and emergency power supply joint supply system.
The technical solution that the utility model is used to solve the above technical problem is to provide a kind of nuclear power station auxiliary steam and answer
Urgent telegram source joint supply system, including gas turbine, waste heat boiler and generator, the gas turbine include the pressure being sequentially communicated
Contracting machine, combustion chamber and combustion gas turbine, the power output shaft of the combustion gas turbine connect the generator after compressor；
For generating pressure-air and being output to combustion chamber, the combustion chamber generates high the compressor for burning fuel
Warm flue gas, the combustion gas turbine are done work by the high-temperature flue gas and drive the generator to be sent out through the power output shaft
Electricity, for use as emergency service；
The waste heat boiler connects the combustion gas turbine, for utilizing the useless high temperature cigarette being discharged after combustion gas turbine acting
Water is heated into water vapour by gas, for use as auxiliary steam.
The above-mentioned nuclear power station auxiliary steam of the utility model and emergency power supply joint supply system further include:
The input terminal of transformer and emergency bus, the transformer connects the generator, the output end of the transformer
The emergency bus is connected, the emergency bus connects nuclear power plant's power supply system, for adjusting the voltage of the emergency service
After be output to nuclear power plant's power supply system.
The above-mentioned nuclear power station auxiliary steam of the utility model and emergency power supply joint supply system further include:
The inlet end of chimney, the chimney connects the waste heat boiler, the low temperature cigarette for generating the waste heat boiler
Gas is discharged into atmosphere.
The above-mentioned nuclear power station auxiliary steam of the utility model and emergency power supply joint supply system further include:
Auxiliary steam supply line, auxiliary steam supply line one end connect the waste heat boiler, and the auxiliary is steamed
The vapour supply line other end connects Auxiliary Steam, for the auxiliary steam to be output to the Auxiliary Steam.
The above-mentioned nuclear power station auxiliary steam of the utility model and emergency power supply joint supply system further include:
The transformer and emergency bus is connected in series in switch, the switch, female for establishing the transformer and emergency
Conductive connection or the cutting conductive connection between line.
In the above-mentioned nuclear power station auxiliary steam of the utility model and emergency power supply joint supply system, on the waste heat boiler
It is provided with water supplement port, the water supplement port is connected with moisturizing pipeline, for carrying out moisturizing to the waste heat boiler.
The above-mentioned nuclear power station auxiliary steam of the utility model and emergency power supply joint supply system further include:
Shaft coupling, the shaft coupling are used to connect the rotary shaft of the power output shaft and the generator, the power
Output shaft drives the rotary shaft of the generator to synchronize rotary motion.
Implement a kind of nuclear power station auxiliary steam provided by the utility model and emergency power supply joint supply system, has following
The utility model has the advantages that
The nuclear power station auxiliary steam and emergency power supply joint supply system by gas turbine and waste heat boiler combination with
And gas turbine and generator combination, on the one hand auxiliary steam can be provided for nuclear power plant's Auxiliary Steam, on the other hand
Emergency service can be provided for nuclear power plant, so that the joint supply of auxiliary steam and emergency power supply is realized, to replace existing nuclear power
The starting trouble or donkey boiler that factory uses avoid the problem that common mode failure easily occurs for existing diesel, nuclear power station can be improved and answer
The reliability in urgent telegram source promotes Nuclear Power Station economy.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the schematic diagram of nuclear power station emergency power system in the prior art；
Fig. 2 is the schematic diagram of nuclear power station auxiliary steam and emergency power supply joint supply system provided by the utility model；
Description of drawing identification:
10, gas turbine；20, waste heat boiler；30, generator；40, chimney；50, transformer；60, emergency bus；70, auxiliary
Help steam supply pipes；80, Auxiliary Steam；11, compressor；12, combustion chamber；13, combustion gas turbine；14, power output shaft；
15, shaft coupling；51, it switchs.
Specific embodiment
In order to enable those skilled in the art that the utility model is more clearly understood, below in conjunction with attached drawing and specifically
Embodiment does further detailed description to the utility model.
Referring to fig. 2, the utility model embodiment provides a kind of nuclear power station auxiliary steam and emergency power supply joint supply system,
Including gas turbine 10, waste heat boiler 20 and generator 30, auxiliary steam and emergency power supply joint supply system further include chimney
40, transformer 50 and emergency bus 60.
Gas turbine 10 includes the compressor 11, combustion chamber 12 and the combustion gas turbine 13 that are sequentially communicated, and combustion gas turbine 13
Power output shaft 14 is connected to generator 30 after compressor 11, for providing rotation simultaneously for compressor 11 and generator 30
Power.It is provided with air inlet valve on compressor 11, is output to combustion chamber 12 for air to be promoted to after pressure-air.Combustion chamber
12 are provided with air inlet and fuel inlet, and 1100 degrees Celsius of height is generated for the mixture of burning fuel and pressure-air
Warm flue gas, the high-temperature flue gas enter combustion gas turbine 13, and combustion gas turbine 13 is by the high-temperature flue gas expansion work and through power
Output shaft 14 drives generator 30 to generate electricity, and can be used as emergency service after output.
The input terminal of transformer 50 connects generator 30, and the output end of transformer 50 connects emergency bus 60, emergency bus
60 other end connects nuclear power plant's power supply system, for being output to nuclear power plant after the emergency service is adjusted to suitable voltage
Power supply system.Therefore, the auxiliary steam and emergency power supply joint supply system can be after nuclear power plant lose inside and outside power supply
Independent startup provides emergency service for nuclear power plant.
In the present embodiment, auxiliary steam and emergency power supply joint supply system further include shaft coupling 15, and shaft coupling 15 is used for
Connect the rotary shaft of power output shaft 14 and generator 30 so that power output shaft 14 be able to drive the rotary shaft of generator 30 into
The movement of row synchronous rotary.
Further, waste heat boiler 20 is provided with inlet end and exhaust end, and the inlet end connection combustion gas of waste heat boiler 20 is saturating
Flat 13,530 degrees Celsius of the useless high-temperature flue gas that combustion gas turbine 13 is discharged after doing work enters waste heat boiler 20 by the inlet end, remaining
Water is heated into water vapour using the heat of the useless high-temperature flue gas by heat boiler 20, be can be used as nuclear power plant's auxiliary after output and is steamed
Vapour.
The inlet end of chimney 40 connects the exhaust end of waste heat boiler 20,120 generated after 20 heating steam of waste heat boiler
Degree Celsius low-temperature flue gas can be discharged into atmosphere by chimney 40.
In the present embodiment, combustion chamber 12 is using natural gas as fuel, and therefore, what chimney 40 outwardly discharged is 120
Degree Celsius flue gas, the nuisances such as sulfur-bearing, do not meet environmental requirement.In another embodiment of the utility model, using fuel oil
As the fuel of gas turbine 10, it is applicable to the enterprises such as thermal power plant, petroleum, chemical industry.
Water supplement port is additionally provided on waste heat boiler 20, the water supplement port is connected with moisturizing pipeline, for waste heat boiler 20
Carry out moisturizing.
Auxiliary steam and emergency power supply joint supply system provided in this embodiment further includes auxiliary steam supply line 70,
Waste heat boiler 20 is provided with auxiliary steam output end, and 70 one end of auxiliary steam supply line connects the auxiliary steam output end, separately
One end connects Auxiliary Steam 80, for the auxiliary steam to be output to Auxiliary Steam 80, to substitute existing nuclear power
The starting trouble that factory uses.
Auxiliary steam and emergency power supply joint supply system provided by the utility model further includes switch 51, and switch 51 is arranged
Between transformer 50 and emergency bus 60, and transformer 50 and emergency bus 60 is connected in series in switch 51, for establishing transformation
Conductive connection or the cutting conductive connection between device 50 and emergency bus 60, to control whether that exporting emergency for nuclear power plant supplies
Electricity.
In conclusion nuclear power station auxiliary steam provided by the utility model and emergency power supply joint supply system are on the one hand logical
The combination for crossing gas turbine and waste heat boiler can provide auxiliary steam for nuclear power plant's Auxiliary Steam, to replace existing nuclear power
The starting trouble or donkey boiler that factory uses promote Nuclear Power Station economy, meanwhile, the high temperature and pressure that waste heat boiler generates is steamed
Vapour can satisfy different work requirements, the versatility of lifting system；
On the other hand, emergency service can be provided for nuclear power plant by the combination of gas turbine and generator, using as core
The supplement or replacement of power station emergency power supply can avoid the problem of common mode failure easily occurs for existing diesel, improve nuclear power station and answer
The reliability in urgent telegram source, meanwhile, the combined capacity of gas turbine and generator can meet full factory's emergency power supply and share, and can reduce
The usage quantity of nuclear power station diesel-engine equipment, to reduce Nuclear Power Station and O&M cost.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (7)
1. a kind of nuclear power station auxiliary steam and emergency power supply joint supply system, which is characterized in that including gas turbine (10), remaining
Heat boiler (20) and generator (30), the gas turbine (10) include the compressor (11) being sequentially communicated, combustion chamber (12) and
The power output shaft (14) of combustion gas turbine (13), the combustion gas turbine (13) connects the generator after compressor (11)
(30)；
The compressor (11) is for generating pressure-air and being output to combustion chamber (12), and the combustion chamber (12) is for combustion of burning
Material generates high-temperature flue gas, and the combustion gas turbine (13) is done work by the high-temperature flue gas and driven through the power output shaft (14)
The generator (30) generates electricity, for use as emergency service；
The waste heat boiler (20) connects the combustion gas turbine (13), for what is be discharged after being done work using the combustion gas turbine (13)
Water is heated into water vapour by useless high-temperature flue gas, for use as auxiliary steam.
2. nuclear power station auxiliary steam according to claim 1 and emergency power supply joint supply system, which is characterized in that also wrap
It includes:
The input terminal of transformer (50) and emergency bus (60), the transformer (50) connects the generator (30), the change
The output end of depressor (50) connects the emergency bus (60), and the emergency bus (60) connects nuclear power plant's power supply system, is used for
Nuclear power plant's power supply system is output to after the voltage of the emergency service is adjusted.
3. nuclear power station auxiliary steam according to claim 1 and emergency power supply joint supply system, which is characterized in that also wrap
It includes:
The inlet end of chimney (40), the chimney (40) connects the waste heat boiler (20), is used for the waste heat boiler (20)
The low-temperature flue gas of generation is discharged into atmosphere.
4. nuclear power station auxiliary steam according to claim 1 and emergency power supply joint supply system, which is characterized in that also wrap
It includes:
Auxiliary steam supply line (70), described auxiliary steam supply line (70) one end connect the waste heat boiler (20), institute
Auxiliary steam supply line (70) other end connection Auxiliary Steam (80) is stated, it is described for the auxiliary steam to be output to
Auxiliary Steam (80).
5. nuclear power station auxiliary steam according to claim 2 and emergency power supply joint supply system, which is characterized in that also wrap
It includes:
It switchs (51), the transformer (50) and emergency bus (60) is connected in series in the switch (51), for establishing the change
Conductive connection or the cutting conductive connection between depressor (50) and emergency bus (60).
6. nuclear power station auxiliary steam according to claim 1 and emergency power supply joint supply system, which is characterized in that described
Water supplement port is provided on waste heat boiler (20), the water supplement port is connected with moisturizing pipeline, for the waste heat boiler (20) into
Row moisturizing.
7. nuclear power station auxiliary steam according to claim 1 and emergency power supply joint supply system, which is characterized in that also wrap
It includes:
Shaft coupling (15), the shaft coupling (15) are used to connect the rotation of the power output shaft (14) and the generator (30)
Axis, the power output shaft (14) drive the rotary shaft of the generator (30) to synchronize rotary motion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821191131.2U CN208858456U (en) | 2018-07-26 | 2018-07-26 | A kind of nuclear power station auxiliary steam and emergency power supply joint supply system |
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| CN201821191131.2U CN208858456U (en) | 2018-07-26 | 2018-07-26 | A kind of nuclear power station auxiliary steam and emergency power supply joint supply system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377882A (en) * | 2020-10-13 | 2021-02-19 | 中广核工程有限公司 | Nuclear power station starting boiler and emergency generator combined working system |
| CN113066595A (en) * | 2021-03-24 | 2021-07-02 | 中广核工程有限公司 | Multi-energy complementary steam supply system |
| CN114172261A (en) * | 2021-11-02 | 2022-03-11 | 苏州热工研究院有限公司 | Nuclear power plant emergency power supply system and control method |
-
2018
- 2018-07-26 CN CN201821191131.2U patent/CN208858456U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377882A (en) * | 2020-10-13 | 2021-02-19 | 中广核工程有限公司 | Nuclear power station starting boiler and emergency generator combined working system |
| CN113066595A (en) * | 2021-03-24 | 2021-07-02 | 中广核工程有限公司 | Multi-energy complementary steam supply system |
| CN113066595B (en) * | 2021-03-24 | 2024-04-02 | 中广核工程有限公司 | Multi-energy complementary steam supply system |
| CN114172261A (en) * | 2021-11-02 | 2022-03-11 | 苏州热工研究院有限公司 | Nuclear power plant emergency power supply system and control method |
| CN114172261B (en) * | 2021-11-02 | 2023-12-12 | 广东核电合营有限公司 | Nuclear power plant emergency power supply system and control method |
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