CN105889896A - Turbine-boiler coordinated energy saving system - Google Patents
Turbine-boiler coordinated energy saving system Download PDFInfo
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- CN105889896A CN105889896A CN201410773587.XA CN201410773587A CN105889896A CN 105889896 A CN105889896 A CN 105889896A CN 201410773587 A CN201410773587 A CN 201410773587A CN 105889896 A CN105889896 A CN 105889896A
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- boiler
- air heater
- steam air
- turbine
- circulating pump
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Abstract
The invention provides a turbine-boiler coordinated energy saving system. Boiler feed water serves as a heat source to heat boiler cold air. The principle is that the boiler feed water is partially led into the boiler cold air to be subjected to heat emission, and the boiler inlet cold air temperature is increased. The boiler feed water subjected to heat emission in the boiler cold air is returned to a turbine regenerative system, the unit regenerative system steam extraction amount is increased, the turbine cold end loss is reduced, and the boiler input heat is increased, so that the energy saving purpose is achieved.
Description
Technical field
The present invention relates to a kind of boiler-turbine coordinated energy conserving system, relate generally to boiler and Saving energy in Steam Turbine technical field.
Background technology
In Thermal Power Station, maximum energy loss, in turbine cold end system, reduces Turbine Cold Junction loss non-to the economic influence of unit
, there is the biggest energy saving space in Chang great.This patent, by Steam Turbine Regenerative System and boiler feedwater, air system are optimized process, makes
Unit reaches optimal economic running status, it is possible to realizes unit and saves energy and reduce the cost.On the premise of ensureing unit safety, economy, reliability service,
Excavate existing therrmodynamic system potentiality, make full use of boiler exhaust gas waste heat and meet national energy policy, environmental protection policy.
Summary of the invention
Regenerative steam system is key component in principled thermal system, i.e. uses the steam making a part of merit to heat and enters boiler
Feedwater, uses the purpose of the heating boiler feed water that draws gas to be to reduce cold source energy, no longer to condensing after necessarily the steam of the amount of drawing gas has made part merit
To cooling water heat release in device, the heat both having avoided steam is taken away by recirculated cooling water, makes steam heat be fully used, and heat consumption rate declines.
Made the steam of part merit to heat feedwater simultaneously because make use of steam turbine, and improve feed temperature, decrease the heat transfer of boiler heating surface
The temperature difference, thus decrease the irreversible loss of feedwater heating process, caloric receptivity in the boiler reduces the most accordingly.Can be increased by native system
Flow through the flow of boiler water-suppling heater, and then increase heat regenerative system is drawn gas and can be improved unit thermal efficiency of cycle.
In the present invention boiler cold wind is heated, the air themperature of entrance boiler can be made to increase, reduce boiler combustion required air and exist
Heat absorption in boiler, improves boiler output.Additionally can improve the entrance cold wind temperature of air preheater, it is to avoid air preheater entrance cold wind
The low cold end corrosion caused of temperature.
Accompanying drawing explanation
Fig. 1 is the system schematic of the present invention.
Digitized representation is as follows in FIG: 1. boiler, 2. steam air heater, 3. air preheater, 4. cleaner unit, 5. air-introduced machine, 6. warms up chimney, and 7
Steam turbine high-pressure cylinder, 8. Steam Turbine Through IP Admission, 9. turbine low pressure cylinder, 10. condenser, 11. condensate pumps, 12. steam air heater water media outlet
To solidifying pump intake regulation door, 13. steam air heater hydrophily Jie's water circulating pump outlet regulating doors, 14. steam air heater hydrophily Jie's water circulating pumps, 15. warm braws
Device hydrophily Jie's water circulating pump entrance regulation door, 16. steam air heater water media input regulation doors, 17. low price systems, 18. feed pumps, 19. oxygen-eliminating devices,
20. high adding systems.
Detailed description of the invention
As shown in FIG., boiler feedwater is as returning the low-temperature space feed water system of boiler after thermal source heating boiler cold wind, boiler feedwater is through steam air heater water
Media input regulation door (16) enter steam air heater (2), the boiler feedwater after heat release can select two paths enter the low-temperature space feed water system of boiler:
A kind of mode is through steam air heater hydrophily Jie's water circulating pump entrance regulation door (15), steam air heater hydrophily Jie's water circulating pump (14), steam air heater water mediation cycle
Exit of pump regulation door (13) enters the low-temperature space feed water system of boiler；Another way is situated between by steam air heater hydrophily and is exported to solidifying pump intake regulation door
(12) the low-temperature space feed water system of boiler is entered.Flow through steam air heater (2) the water yield can as desired by steam air heater water media input regulation door (16),
The outlet of steam air heater hydrophily Jie's water circulating pump entrance regulation door (15), steam air heater hydrophily Jie's water circulating pump (14), steam air heater hydrophily Jie's water circulating pump is adjusted
Section door (13), steam air heater hydrophily Jie is exported to solidifying pump intake regulation door (12), condensate pump (11) is adjusted.
Claims (4)
1. a boiler-turbine coordinated energy conserving system, it is characterised in that: boiler feedwater is as returning the low-temperature space feed water system of boiler, pot after thermal source heating boiler cold wind
Stove feedwater enters steam air heater (2) through steam air heater water media input regulation door (16), and the boiler feedwater after heat release can select two paths to enter low-temperature space
The feed water system of boiler: a kind of mode is through steam air heater hydrophily Jie's water circulating pump entrance regulation door (15), steam air heater hydrophily Jie's water circulating pump (14), steam air heater
Hydrophily Jie's water circulating pump outlet regulating door (13) enters the low-temperature space feed water system of boiler；Another way is situated between by steam air heater hydrophily and is exported to solidifying pump intake
Regulation door (12) enters the low-temperature space feed water system of boiler.The water yield flowing through steam air heater (2) can regulate door as desired by steam air heater water media input
(16), steam air heater hydrophily Jie water circulating pump entrance regulation door (15), steam air heater hydrophily Jie's water circulating pump (14), the outlet of steam air heater hydrophily Jie's water circulating pump
Regulate door (13), steam air heater hydrophily Jie is exported to solidifying pump intake regulation door (12), condensate pump (11) is adjusted.
A kind of boiler-turbine coordinated energy conserving system the most according to claim 1, it is characterised in that: use high-temperature boiler feedwater as thermal source by steam air heater (2)
Heating boiler cold wind, flows through the boiler feedwater after steam air heater (2) heat release and enters the low temperature feed water system of boiler, increase the unit heat regenerative system amount of drawing gas, subtract
Few Turbine Cold Junction loss, increases boiler input heat.
A kind of boiler-turbine coordinated energy conserving system the most according to claim 1, it is characterised in that: enter the high-temperature boiler feedwater water intaking position of steam air heater (2)
Arbitrarily select each low to add, height adds outlet and arbitrarily selects.
A kind of boiler-turbine coordinated energy conserving system the most according to claim 1, it is characterised in that: steam air heater hydrophily Jie's water circulating pump outlet regulating door (13) goes out
Mouthful enter that feed water system of boiler position arbitrarily selects each low to add, height adds entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410773587.XA CN105889896A (en) | 2014-12-16 | 2014-12-16 | Turbine-boiler coordinated energy saving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410773587.XA CN105889896A (en) | 2014-12-16 | 2014-12-16 | Turbine-boiler coordinated energy saving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105889896A true CN105889896A (en) | 2016-08-24 |
Family
ID=56701467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410773587.XA Pending CN105889896A (en) | 2014-12-16 | 2014-12-16 | Turbine-boiler coordinated energy saving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105889896A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482088A (en) * | 2016-09-13 | 2017-03-08 | 上海理工大学 | Joint thermal wind sensor utilizes system with the residual heat from boiler fume of steam air heater |
-
2014
- 2014-12-16 CN CN201410773587.XA patent/CN105889896A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482088A (en) * | 2016-09-13 | 2017-03-08 | 上海理工大学 | Joint thermal wind sensor utilizes system with the residual heat from boiler fume of steam air heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |
|
| WD01 | Invention patent application deemed withdrawn after publication |