CN208442817U - Solar energy thermo-power station underload heater system - Google Patents
Solar energy thermo-power station underload heater system Download PDFInfo
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- CN208442817U CN208442817U CN201820886347.4U CN201820886347U CN208442817U CN 208442817 U CN208442817 U CN 208442817U CN 201820886347 U CN201820886347 U CN 201820886347U CN 208442817 U CN208442817 U CN 208442817U
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Abstract
The utility model discloses solar energy thermo-power station underload heater systems, belong to photo-thermal power station power field, including steam generator system, the steam generator system includes economizer, drum and superheater, superheater connects two bypasses, one bypass connects steam turbine, another bypass passes through temperature-decreased pressure reducer, valve is connected with underload preheater, underload preheater water inlet and water supply system are connected for water end (W.E.), underload preheater water outlet is connect with economizer, the utility model can satisfy the needs of self-heating water supply when photo-thermal power station operates in running on the lower load, system is simple, it is cheap, save fuel consumption.
Description
Technical field
The utility model relates to fused salt and water heat-exchanging process system, especially steam generator system fused salts and water heat exchange work
Process system belongs to photo-thermal power station power field.
Background technique
Photo-thermal has an important energy strategy status as a kind of clean renewable energy, but domestic with external light
There are larger gaps for thermal technology, and face foreign technology block.Especially in fused salt and water heat-exchanging process system, due to photo-thermal electricity
It stands system complex, start and stop frequently (once a day), and are affected by factors such as weather, and load variations range is compared with conventional power plant
A possibility that increase.Therefore in order to guarantee that feed temperature on fused salt freezing point, prevents fused salt from solidifying in equipment, cause to run
Accident, traditional approach are the temperature that provide steam or other heat sources using boiler to guarantee water supply on fused salt freezing point,
Equipment (also increasing land occupation arrangement areas) is on the one hand increased in this way；On the other hand also additional consumption oil or natural gas, make to set
The standby moment is in stand-by state.Not only make system complex, also add equipment investment, utilization rate is too low, and input and output is not
Match.
Summary of the invention
The utility model technical issues that need to address are to provide a kind of solar energy thermo-power station underload heater system,
Guarantee that feed temperature is higher than the setting temperature of fused salt in the final end equipment that fused salt flows out, simultaneity factor structure is simple, is convenient for
Operation reduces investment.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
Solar energy thermo-power station underload heater system, including steam generator system, the steam generator system
Including sequentially connected economizer, drum and superheater, superheater connects two bypasses, and a bypass connects steam turbine, another
A bypass is connected with underload preheater, the confession of underload preheater water inlet and water supply system by temperature-decreased pressure reducer, valve
Water end (W.E.) connection, underload preheater water outlet are connect with economizer.
Technical solutions of the utility model further improvement lies in that: underload preheater pass through valve in parallel connect steam turbine return
Hot systems high-pressure heater, the water supply system are connect for water end (W.E.) with steam turbine heat regenerative system high-pressure heater water inlet, and steam turbine returns
Hot systems high-pressure heater water outlet is connect with underload preheater water inlet, steam turbine heat regenerative system high-pressure heater and underload
The inlet and outlet of preheater pass through respectively to be connected with valvular bypass.
Technical solutions of the utility model further improvement lies in that: drum is connected with evaporator by external circulating pump.
Technical solutions of the utility model further improvement lies in that: drum by external circulating pump connection starting electric heater
And then it is connected to economizer.
By adopting the above-described technical solution, the technological progress that the utility model obtains is:
Traditional stand-by boiler is replaced to meet light without increasing other great ancillary equipments using underload preheater
The needs of self-heating water supply when thermo-power station operates in running on the lower load, system is simple, cheap, is heated using self-produced steam
Save fuel consumption；In addition, heated in the maintenance of underload preheater using steam turbine heat regenerative system afterbody high-pressure heater,
It can achieve and not stop production, increase benefit.
Detailed description of the invention
Fig. 1 is the utility model process system flow chart；
Wherein, 1, steam turbine heat regenerative system high-pressure heater, 2, underload preheater, 3, external circulating pump, 4, starting electricity plus
Hot device, 5, economizer, 6, evaporator, 7, drum, 8, superheater, 9, temperature-decreased pressure reducer.
Specific embodiment
The utility model is described in further details below with reference to embodiment:
As shown in Figure 1, steam generator system includes economizer 5, drum 7 and superheater 8, economizer 5, drum 7 and mistake
Hot device 8 is sequentially connected, and drum 7 one bypasses are connected with evaporator 6 by external circulating pump 3, another bypass is followed by external
3 connection starting electric heater 4 of ring pump is connected to economizer 5 in turn, when steam generator cold start-up, opens starting electric heater 4,
The water supply of water supply system is heated, so that the feed temperature in economizer 5 and drum 7 reaches the predetermined temperature higher than fused salt freezing point
Degree, fused salt solidifies when steam generator can be prevented to be cold-started by this bypass；When steam generator system starts one section
Between after, each component water temperature reaches predetermined temperature, there is no need to start electric heater 4 heat, close starting electric heater 4, open
Start electric heater 4 bypass valve, the water supply by preheating be then not required to starting electric heater 4 heating by bypass directly into
Enter economizer 5 and fused salt heat exchanging；When the water level in drum 7 is normal, water enters evaporator 6 by external circulating pump 3, by steaming
The hair evaporation of device 6 becomes water vapour and returns to drum 7, the water in drum 7 can be made to absorb heat by this internal circulation and generate steam.
Superheater 8 connects two bypasses, and a bypass connects steam turbine, so that steam does work under the action of steam turbine drives generator
Power generation；Another bypass connects underload preheater 2 by temperature-decreased pressure reducer 9, valve, and superheated steam passes through temperature-decreased pressure reducer 9
Into underload preheater 2, the water supply of water supply system reaches on fused salt freezing point (there are temperature margins) entrance by preheating
Economizer 5 and fused salt heat exchanging are heated instead of traditional boiler, so that system is simple, is reduced investment and are saved fuel.Underload is pre-
Hot device 2 and steam turbine heat regenerative system high-pressure heater 1 pass through valve and respectively connect a bypass, when underload preheater 2 overhauls, pass through
Opening and closing valve makes steam enter the preheating of steam turbine heat regenerative system high-pressure heater 1, can achieve and does not stop production, increases benefit.
Application method:
When power station is in underrun operating condition, feed temperature can be lower than the temperature of fused salt freezing point, open at this time low
Load preheater 2, superheated steam a part that superheater 8 generates enter the heating of underload preheater 2 by temperature-decreased pressure reducer 9 and come
The water supply of self-supporting water system, water supply, which reaches on fused salt freezing point (there are surpluses), becomes water into economizer 5 and fused salt heat exchanging
Steam enters drum 7, then becomes superheated steam by superheater 8 and drives electrical power generators by steam turbine acting.
Claims (4)
1. solar energy thermo-power station underload heater system, including steam generator system, it is characterised in that: the steam hair
Raw device system includes sequentially connected economizer (5), drum (7) and superheater (8), and superheater (8) connects two and bypasses, and one
Bypass connection steam turbine, another bypass are connected with underload preheater (2) by temperature-decreased pressure reducer (9), valve, and underload is pre-
Hot device (2) water inlet and water supply system are connected for water end (W.E.), and underload preheater (2) water outlet is connect with economizer (5).
2. solar energy thermo-power station underload heater system according to claim 1, it is characterised in that: underload preheating
Device (2) connects steam turbine heat regenerative system high-pressure heater (1) by valve in parallel, and the water supply system is for water end (W.E.) and steam turbine backheat system
Unite the connection of high-pressure heater (1) water inlet, steam turbine heat regenerative system high-pressure heater (1) water outlet and underload preheater (2) into
The inlet and outlet of mouth of a river connection, steam turbine heat regenerative system high-pressure heater (1) and underload preheater (2) pass through band respectively
Valvular bypass connection.
3. solar energy thermo-power station underload heater system according to claim 1, it is characterised in that: drum (7) is logical
It crosses external circulating pump (3) and is connected with evaporator (6).
4. solar energy thermo-power station underload heater system according to claim 1, it is characterised in that: drum (7) is logical
It crosses external circulating pump (3) connection starting electric heater (4) and then is connected to economizer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820886347.4U CN208442817U (en) | 2018-06-08 | 2018-06-08 | Solar energy thermo-power station underload heater system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820886347.4U CN208442817U (en) | 2018-06-08 | 2018-06-08 | Solar energy thermo-power station underload heater system |
Publications (1)
| Publication Number | Publication Date |
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| CN208442817U true CN208442817U (en) | 2019-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201820886347.4U Active CN208442817U (en) | 2018-06-08 | 2018-06-08 | Solar energy thermo-power station underload heater system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812788A (en) * | 2019-01-30 | 2019-05-28 | 上海锅炉厂有限公司 | It is a kind of can be with the fused salt steam generating system and its working method of quick start |
| CN112082147A (en) * | 2020-09-17 | 2020-12-15 | 东方菱日锅炉有限公司 | Low-pressure superheater system of waste heat boiler |
| CN113432099A (en) * | 2021-06-04 | 2021-09-24 | 西安交通大学 | Preheater inlet feed water temperature control system and method in starting process of photo-thermal power station |
-
2018
- 2018-06-08 CN CN201820886347.4U patent/CN208442817U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812788A (en) * | 2019-01-30 | 2019-05-28 | 上海锅炉厂有限公司 | It is a kind of can be with the fused salt steam generating system and its working method of quick start |
| CN109812788B (en) * | 2019-01-30 | 2023-11-24 | 上海锅炉厂有限公司 | Molten salt steam generation system capable of being started quickly and working method thereof |
| CN112082147A (en) * | 2020-09-17 | 2020-12-15 | 东方菱日锅炉有限公司 | Low-pressure superheater system of waste heat boiler |
| CN113432099A (en) * | 2021-06-04 | 2021-09-24 | 西安交通大学 | Preheater inlet feed water temperature control system and method in starting process of photo-thermal power station |
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