CN207004580U - The gradient utilization system of steam energy - Google Patents
The gradient utilization system of steam energy Download PDFInfo
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- CN207004580U CN207004580U CN201720846309.1U CN201720846309U CN207004580U CN 207004580 U CN207004580 U CN 207004580U CN 201720846309 U CN201720846309 U CN 201720846309U CN 207004580 U CN207004580 U CN 207004580U
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- branch road
- steam turbine
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- energy
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Abstract
The gradient utilization system of steam energy, including small steam turbine, admission passage, exhaust line and generator, admission passage are connected with the admission end of small steam turbine, and exhaust line is connected with the exhaust end of small steam turbine, and generator is connected with small steam turbine；Admission passage is connected with large-size steam turbine；Exhaust line includes heating branch road and desuperheat branch road in parallel, and heating branch road is provided with heat primary air heater, and desuperheat branch road is provided with attemperator.The utility model is in the form of small steam turbine drawing generator to existing Large-scale machine set（Large-size steam turbine）Extract steam out and carry out heat supply after first generating electricity, reach energy-saving purpose, steam utilization is high；System operation is flexible, realizes the efficient cascade utilization of steam energy, while improves the net electricity volume of power plant, improves the economic benefit, social benefit and environmental benefit of enterprise.
Description
Technical field
Thermal power plant design field is the utility model is related to, is specifically related to a kind of cascade utilization system of steam energy
System.
Background technology
As each enterprise and social use can be increasingly vigorous with heat demand, using central heating, high efficiency of energy step profit is realized
With the active demand for turning into country and thermal power plant with effective administration of energy conservation.
The heat supply mode in conventional thermal power plant, to be required according to heating parameter, by existing Large-scale machine set（Large-scale steamer
Machine）The relatively high parameter steam extracted out first directly carries out pressure and temperature reducing, then external heat supply, and energy can be caused by heat supply after pressure and temperature reducing
The heavy losses in source, the situation of generally existing steam " high product low use ", steam utilization is low, and energy waste is serious.
Utility model content
Technical problem to be solved in the utility model is to overcome the shortcomings of above-mentioned background technology, there is provided a kind of steam profit
With the gradient utilization system of the high steam energy of rate.
The technical scheme that the utility model solves the use of its technical problem is a kind of gradient utilization system of steam energy,
Including small steam turbine, admission passage, exhaust line and generator, the admission end phase of the admission passage and small steam turbine
Even, the exhaust line is connected with the exhaust end of small steam turbine, and the generator is connected with small steam turbine；The steam inlet pipe
Road is connected with large-size steam turbine；The exhaust line includes heating branch road and desuperheat branch road in parallel, is set on the heating branch road
There is heat primary air heater, the desuperheat branch road is provided with attemperator.
Further, the small steam turbine selects back pressure turbine.
Further, the admission passage include two it is in parallel enter vapour branch road, every enter on vapour branch road to be sequentially provided with it is pneumatic
Non-return valve, the first electric gate valve, the first pneumatic control valve, the second electric gate valve, first manual gate valve.
Further, the large-size steam turbine enters vapour branch road with one therein or two are entered vapour branch road and are connected.
Further, be also sequentially provided with the heating branch road of the exhaust line the 3rd electric gate valve, the second pneumatic control valve,
4th electric gate valve；The 5th electric gate valve is additionally provided with the desuperheat branch road.
Compared with prior art, it is as follows the advantages of the utility model：To in the form of small steam turbine drawing generator
There is Large-scale machine set（Large-size steam turbine）Extract steam out and carry out heat supply after first generating electricity, reach energy-saving purpose, steam utilization
It is high.Tthe utility model system flexible operation, realizes the efficient cascade utilization of steam energy, while improves the net electricity volume of power plant,
Improve economic benefit, social benefit and the environmental benefit of enterprise.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
In figure：1-admission passage, 2-small steam turbine, 3-exhaust line, 4-heat primary air heater, 5-subtract
Warm device, 6-generator.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the utility model.
Reference picture 1, the present embodiment include small steam turbine 2, admission passage 1, exhaust line 3 and generator 6, admission passage
1 is connected with the admission end of small steam turbine 2, and exhaust line 3 is connected with the exhaust end of small steam turbine 2, generator 6 and small size gasoline
Turbine 2 is connected；Admission passage 1 and large-size steam turbine（Not shown in figure）It is connected；Small steam turbine 2 selects back pressure turbine；
Admission passage 1 include two it is in parallel enter vapour branch road, every is entered on vapour branch road to be sequentially provided with Pneumatic check valve, the first electric brake
Valve, the first pneumatic control valve, the second electric gate valve, first manual gate valve, large-size steam turbine with one therein enter vapour branch road or
Two are entered vapour branch road and are connected, and large-size steam turbine, which draws gas, to switch over steam supply to small steam turbine 2, can also be simultaneously to small-sized
The steam supply of steam turbine 2；Exhaust line 3 includes heating branch road and desuperheat branch road in parallel, and heating branch road heats provided with heat primary air
Device 4, desuperheat branch road are provided with attemperator 5, heat also be sequentially provided with branch road the 3rd electric gate valve, the second pneumatic control valve,
4th electric gate valve；The 5th electric gate valve is additionally provided with desuperheat branch road.
Utility model works principle is as follows：
The extraction steam of large-size steam turbine enters small steam turbine 2 through admission passage 1, and small steam turbine 2 is by steam thermal energy
It is converted into mechanical energy to generate electricity for generator 6, through electric energy caused by generator 6 for Station Service Electrical-Energy where large-size steam turbine；It is small-sized
Vapor (steam) temperature after steam turbine 2 does work reduces, and is discharged through exhaust line 3, and steam may be heated branch road or desuperheat branch road or same
When pass through this two branch roads, through heating branch road when, steam to heat primary air heater 4 provide heat, heat primary air is entered
Row heating, after vapor (steam) temperature is further reduced, then external heat supply；During by desuperheat branch road, steam through attemperator 5 cooling after,
External heat supply again, through heat primary air heater 4 in the vapor (steam) temperature and heating branch road on desuperheat branch road after the desuperheat of attemperator 5
Vapor (steam) temperature afterwards（Temperature is identical）.
Two of admission passage 1 enter vapour branch road can simultaneously to the steam supply of small steam turbine 2, can also one to enter vapour branch road independent
What the mode of steam supply met back pressure turbine enters vapour requirement, and this sets flexible operation.After back pressure turbine acting generates electricity, the back of the body
The steam discharge heating heat primary air of pressure type steam turbine, is then used further to external heat supply.When heat primary air need not heat, the back of the body
The steam discharge of pressure type steam turbine can pass through desuperheat branch road, external heat supply after appropriate pressure and temperature reducing.
The utility model is in the form of back pressure turbine drawing generator to existing Large-scale machine set（Large-size steam turbine）Take out
Go out steam and carry out heat supply after first generating electricity, reach energy-saving purpose, steam utilization is high.Tthe utility model system operation spirit
It is living, the efficient cascade utilization of steam energy is realized, while the net electricity volume of power plant is improved, improve economic benefit, the society of enterprise
Benefit and environmental benefit.
Those skilled in the art can carry out various modifications and variations to the utility model, if these modifications and variations
Within the scope of the utility model claims and its equivalent technologies, then these modifications and variations are also in guarantor of the present utility model
Within the scope of shield.
The prior art that the content not being described in detail in specification is known to the skilled person.
Claims (5)
- A kind of 1. gradient utilization system of steam energy, it is characterised in that：Including small steam turbine, admission passage, exhaust line And generator, the admission passage are connected with the admission end of small steam turbine；The exhaust of the exhaust line and small steam turbine End is connected；The generator is connected with small steam turbine；The admission passage is connected with large-size steam turbine；The exhaust line bag The heating branch road and desuperheat branch road of parallel connection are included, the heating branch road is provided with heat primary air heater, on the desuperheat branch road Provided with attemperator.
- 2. the gradient utilization system of steam energy as claimed in claim 1, it is characterised in that：The small steam turbine is from the back of the body Pressure type steam turbine.
- 3. the gradient utilization system of steam energy as claimed in claim 1 or 2, it is characterised in that：The admission passage includes Two in parallel to enter vapour branch road, and every is entered on vapour branch road to be sequentially provided with Pneumatic check valve, the first electric gate valve, the first pneumatic regulation Valve, the second electric gate valve, first manual gate valve.
- 4. the gradient utilization system of steam energy as claimed in claim 3, it is characterised in that：The large-size steam turbine with wherein One enter vapour branch road or two are entered vapour branch road and are connected.
- 5. the gradient utilization system of steam energy as claimed in claim 1 or 2, it is characterised in that：The exhaust line adds The 3rd electric gate valve, the second pneumatic control valve, the 4th electric gate valve are also sequentially provided with hot branch road；Also set on the desuperheat branch road There is the 5th electric gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846309.1U CN207004580U (en) | 2017-07-13 | 2017-07-13 | The gradient utilization system of steam energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846309.1U CN207004580U (en) | 2017-07-13 | 2017-07-13 | The gradient utilization system of steam energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207004580U true CN207004580U (en) | 2018-02-13 |
Family
ID=61453124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720846309.1U Expired - Fee Related CN207004580U (en) | 2017-07-13 | 2017-07-13 | The gradient utilization system of steam energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207004580U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152316A (en) * | 2017-07-13 | 2017-09-12 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of gradient utilization system of steam energy |
| CN113883576A (en) * | 2021-09-02 | 2022-01-04 | 华能国际电力股份有限公司大连电厂 | Efficient and flexible heat supply and power generation system capable of realizing energy gradient recycling |
-
2017
- 2017-07-13 CN CN201720846309.1U patent/CN207004580U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152316A (en) * | 2017-07-13 | 2017-09-12 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of gradient utilization system of steam energy |
| CN107152316B (en) * | 2017-07-13 | 2023-08-22 | 中国能源建设集团湖南省电力设计院有限公司 | Cascade utilization system of steam energy |
| CN113883576A (en) * | 2021-09-02 | 2022-01-04 | 华能国际电力股份有限公司大连电厂 | Efficient and flexible heat supply and power generation system capable of realizing energy gradient recycling |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |