CN202883026U - Power station backheating type steam-driven condensate pump system - Google Patents
Power station backheating type steam-driven condensate pump system Download PDFInfo
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- CN202883026U CN202883026U CN2012205458385U CN201220545838U CN202883026U CN 202883026 U CN202883026 U CN 202883026U CN 2012205458385 U CN2012205458385 U CN 2012205458385U CN 201220545838 U CN201220545838 U CN 201220545838U CN 202883026 U CN202883026 U CN 202883026U
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- steam
- condensate pump
- small turbine
- power station
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model relates to a power station backheating type steam-driven condensate pump system which comprises a small steam turbine unit and a condensate pump, wherein the small steam turbine unit is composed of a small steam turbine, a small steam turbine steam inlet pipe system and a small steam turbine steam discharge pipe system, and the condensate pump is driven by the small steam turbine. The small steam turbine is adopted to drive the condensate pump, and at the same time exhaust steam of the small steam turbine is discharged into backheating devices, so that heat of the exhaust steam is recycled to a power station thermodynamic cycle system. The power station beackheating type steam-driven condensate pump system has the advantages that a plurality steam sources can be chosen to drive the small steam turbine to rotate, the condensate pump is driven by the small steam turbine, the exhaust steam can choose to be switched in a plurality of backheating devices, the steam which plays a role in a steam turbine is utilized to provide heat for water or condensation water, cold source loss of the steam heat is reduced, and the heat is transmitted to the water or the condensate water, so that thermodynamic cycle efficiency is improved. In a power station, a motor is replaced by the power station backheating type steam-driven condensate pump system, power utilization in the power station can be reduced, and power supply efficiency of units is improved.
Description
Technical field
The utility model relates to power plant system, particularly a kind of regenerative steam-driven condensate pump system of power plant.
Background technique
The power supply demand of China is growing at present, electric motor power is fast rise year by year thereupon also, significantly improving unit parameter with when improving generating efficiency, how to improve power consumption efficiency, be that the lowering the factory uses an electricity rate more and more is taken seriously, the present significantly mode of lowering the factory uses an electricity rate mainly is the main equipment with the power station, be typically the condensed water in boiler pump, changed into by small turbine by motoring and to drive, can cancel jumbo motor like this, to reach the significantly purpose of lowering the factory uses an electricity, prior art adopts small turbine to drive condensate pump system employing small turbine steam discharge and enters the main frame vapour condenser, circulating water condensing by the main frame vapour condenser is water of condensation, or the small turbine steam discharge enters the independent vapour condenser of small turbine, is water of condensation by the circulating water condensing of small turbine vapour condenser.But no matter be which kind of system, small turbine all is condensed steam type, all be by circulating water (low-temperature receiver) steam discharge to be condensed into water of condensation, so only can reclaim the working medium of steam discharge, but the heat of steam discharge (it is over half that this heat accounts for the heat of vapour source steam) will be drained along with circulating water, thereby make whole cycle efficiency not high; And, drive in the condensate pump technology at above-mentioned traditional condensed steam type small turbine, because the efficient of small turbine is more much lower than main steam turbine, thereby after causing condensate pump changed into small turbine and driven by motor, only can play the purpose of lowering the factory uses an electricity, the power supply efficiency of whole power station is to have reduced on the contrary.
Summary of the invention
Goal of the invention: the purpose of this utility model is to provide a kind of employing small turbine to drive condensate pump, purpose that both can lowering the factory uses an electricity, while can be recovered to exhaust steam heat in the thermodynamic cycle again, thereby has significantly improved the regenerative steam-driven condensate pump system of power plant of unit power supply efficiency.
Technological scheme: the utility model provides a kind of regenerative steam-driven condensate pump system of power plant, and it comprises: regenerative heat type small turbine unit; Described regenerative heat type small turbine unit comprises: small turbine, be located at the small turbine air inlet piping of described small turbine upstream, wherein, described small turbine admission piping is accepted the steam source from the power station circulation system; And the small turbine exhaust steam pipeline that is located at described small turbine downstream; The steam discharge of described small turbine exhaust steam pipeline enters the backheat unit of described power station circulation system and by the condensate pump of described small turbine unit drives, described condensate pump is that condensed water in boiler pump and the merging of desulfurization booster fan form.
Described backheat unit comprises in deaerating heater, low-pressure heater, the high-pressure heater at least.
Beneficial effect: the utility model provides a kind of regenerative steam-driven condensate pump system of power plant, can utilize steam heating feedwater or the water of condensation of making merit in the steam turbine, reduce the cold source energy of steam heat, this heat is passed to feedwater or water of condensation, thereby improve efficiency of thermal cycle.
Can be as required, to steam source and the steam discharge backheat unit of the small turbine of power station regenerative heat type small turbine system carrying out flexible choice and reach necessary requirement.
Description of drawings
Fig. 1 is condensing power station of the present utility model regenerative heat type steam-driven condensate pump system schematic diagram.
Embodiment
Fig. 1 shows a kind of regenerative steam-driven condensate pump system of power plant 100 of the present utility model, is used for heat? recovery with small turbine 11 steam discharges to power station circulation system 300, and it comprises: regenerative heat type small turbine unit 1; Described regenerative heat type small turbine unit 1 comprises: small turbine 11; Be located at the small turbine admission piping 12 of described small turbine 11 upstreams, wherein, the steam source 34 that described small turbine admission piping 12 is accepted from power station circulation system 300; And the small turbine exhaust steam pipeline 13 that is located at described small turbine 11 downstreams; The steam discharge of described small turbine exhaust steam pipeline 13 enters the backheat unit 32 of described power station circulation system 300; With by the steam-powered condensate pump 2 of described small turbine 1.
Wherein, described driven condensate pump 2 can be the condensed water in boiler pump, also can be the condensate pump that condensed water in boiler pump and desulfurization booster fan merge.
Fig. 1 also shows the heat regenerative system 200 for described small turbine 11, and small turbine 11 steam discharges are entered backheat unit 32, with the heat? recovery of steam discharge in power station circulation system 300.
Described backheat unit 32 is selected from one or more in the following equipment: deaerating heater 322, low-pressure heater 321, high-pressure heater 323 or other backheat equipment.
System of the present utility model is like this running:
Form the vapor recycle pipeline by boiler unit 33, main steam turbine unit 30, regenerative steam-driven condensate pump system of power plant 100 and backheat unit 32, wherein: described main steam turbine unit 30 and/or boiler unit 33 carry out steam discharge and form steam source 34, and the steam of described steam source 34 accesses described regenerative steam-driven condensate pump system of power plant 100; The steam discharge of wherein said regenerative steam-driven condensate pump system of power plant 100 enters described backheat unit 32; And the heat? recovery of described backheat unit 32 is to described boiler unit 33.
Claims (3)
1. a regenerative steam-driven condensate pump system of power plant is characterized in that, comprising: regenerative heat type small turbine unit (1); Described regenerative heat type small turbine unit (1) comprising: small turbine (11); Be located at the small turbine admission piping (12) of described small turbine (11) upstream, wherein, described small turbine admission piping (12) is accepted the steam source (34) from power station circulation system (300); And the small turbine exhaust steam pipeline (13) that is located at described small turbine (11) downstream; The steam discharge of described small turbine exhaust steam pipeline (13) enters the backheat unit (32) of described power station circulation system (300); With the condensate pump (2) that is driven by described small turbine unit (1).
2. regenerative steam-driven condensate pump system of power plant as claimed in claim 1 is characterized in that: described condensate pump (2) is merged by condensed water in boiler pump and desulfurization booster fan and forms.
3. regenerative steam-driven condensate pump system of power plant as claimed in claim 1, it is characterized in that: described backheat unit (32) comprises in deaerating heater (322), low-pressure heater (321), the high-pressure heater (323) at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205458385U CN202883026U (en) | 2012-10-24 | 2012-10-24 | Power station backheating type steam-driven condensate pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205458385U CN202883026U (en) | 2012-10-24 | 2012-10-24 | Power station backheating type steam-driven condensate pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883026U true CN202883026U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205458385U Expired - Fee Related CN202883026U (en) | 2012-10-24 | 2012-10-24 | Power station backheating type steam-driven condensate pump system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202883026U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485848A (en) * | 2013-09-30 | 2014-01-01 | 中国电力工程顾问集团华东电力设计院 | Backpressure steam extraction small turbine thermal system which is coaxial with single reheating main turbine |
| CN103485849A (en) * | 2013-09-30 | 2014-01-01 | 中国电力工程顾问集团华东电力设计院 | Thermodynamic system of backpressure steam extraction small turbine which is coaxial with double reheating main turbine |
-
2012
- 2012-10-24 CN CN2012205458385U patent/CN202883026U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485848A (en) * | 2013-09-30 | 2014-01-01 | 中国电力工程顾问集团华东电力设计院 | Backpressure steam extraction small turbine thermal system which is coaxial with single reheating main turbine |
| CN103485849A (en) * | 2013-09-30 | 2014-01-01 | 中国电力工程顾问集团华东电力设计院 | Thermodynamic system of backpressure steam extraction small turbine which is coaxial with double reheating main turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20201024 |