CN202645658U - Fuel-steam-organic working medium combined cycle power generation unit - Google Patents

Fuel-steam-organic working medium combined cycle power generation unit Download PDF

Info

Publication number
CN202645658U
CN202645658U CN 201220319437 CN201220319437U CN202645658U CN 202645658 U CN202645658 U CN 202645658U CN 201220319437 CN201220319437 CN 201220319437 CN 201220319437 U CN201220319437 U CN 201220319437U CN 202645658 U CN202645658 U CN 202645658U
Authority
CN
China
Prior art keywords
steam
combined cycle
working medium
turbine
fuel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220319437
Other languages
Chinese (zh)
Inventor
赵斌
刘景新
张弋
杨素敏
赵元星
张颖
么强
黄艳
邬志红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TANGSHAN CITY SPECIAL EQUIPMENT SUPERVISION AND INSPECTION INSTITUTE
Hebei United University
Original Assignee
TANGSHAN CITY SPECIAL EQUIPMENT SUPERVISION AND INSPECTION INSTITUTE
Hebei United University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TANGSHAN CITY SPECIAL EQUIPMENT SUPERVISION AND INSPECTION INSTITUTE, Hebei United University filed Critical TANGSHAN CITY SPECIAL EQUIPMENT SUPERVISION AND INSPECTION INSTITUTE
Priority to CN 201220319437 priority Critical patent/CN202645658U/en
Application granted granted Critical
Publication of CN202645658U publication Critical patent/CN202645658U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Landscapes

  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The utility model relates to a thermal power generation device and particularly relates to a fuel-steam-organic working medium combined cycle power generation unit comprising a fuel-steam combined cycle thermal system and an organic Rankine cycle system, wherein certain back stages of steam outlets of a turbine low-pressure cylinder in the fuel-steam combined cycle thermal system are connected with a steam inlet of an evaporator in the organic Rankine cycle system through a steam pumping pipeline; and a condensed water outlet of the evaporator is connected with a water returning opening of a residual heat boiler through a low-pressure water feeding pipeline and a condensed water pump. According to the fuel-steam-organic working medium combined cycle power generation unit, on the basis of the existing fuel-steam combined cycle thermal system, the organic Rankine cycle system is coupled into the previous thermal system and pumped steam is used as a hot source of an organic Rankine cycle by taking a form that certain back stages of the turbine are used for pumping steam, so as to further improve the recycling rate of a dead steam residual heat resource of the turbine and improve the power generation rate of a fuel-steam combined cycle power station.

Description

Fuel gas-steam-organic working medium combined cycle generating unit
Technical field
The utility model relates to thermal power generation device, and a kind of reduction cold source energy specifically improves the fuel gas-steam of gas-steam combined power station generating efficiency-organic working medium combined cycle generating unit.
Background technique
At present, domestic circulating power station is commonly E/F type gas turbine and the Combined Cycle Unit thereof of introducing mature technology, and its design generating efficiency is between 54～57%.But because the impact of the factors such as environment (ambient temperature raises, and Gas Turbine Output descends), plant maintenance causes actual power efficient often to be low to moderate about 52%.
Conventional steam power plant take water as cycle fluid, the not high thermodynamic system of main steam condition particularly, its turbine discharge carries a large amount of low-temperature heat quantities, ratio reaches more than 50% of the total caloric receptivity of boiler, these heats are not utilized in the thermal power plant of routine and circulating power station, and by circulating water with transfer of heat in the middle of environment.Simultaneously because turbine discharge temperature generally very low (the general exhaust temperature of water-cooled condensing steam turbine is about 40 ℃), this is just so that utilize exhaust steam residual heat to have very large difficulty.
The model utility content
The utility model is intended to further promote the recovery rate of exhaust steam in steam turbine residual heat resources, improves the generated output in Gas-steam Combined Cycle power station.On the basis of existing Gas-steam Combined Cycle thermodynamic system, drawing gas of what is the circulation of thermal source organic Rankine take the steam turbine end in coupling, form a kind of fuel gas-steam-organic working medium combined cycle generating unit, improve Gas-steam Combined Cycle power station generating efficiency.
The technical solution adopted in the utility model is:
A kind of fuel gas-steam-organic working medium combined cycle generating unit, comprise Gas-steam Combined Cycle thermodynamic system, organic rankine cycle system, what steam (vapor) outlet of turbine low pressure cylinder in described Gas-steam Combined Cycle thermodynamic system end is connected with vaporizer steam inlet in the described organic rankine cycle system by extraction line, and the water of condensation of this vaporizer exports passes through the low pressure feed water pipeline and condensate pump is connected with the backwater mouth of exhaust heat boiler.
Further:
Exhaust heat boiler high pressure steam outlet in the described Gas-steam Combined Cycle thermodynamic system is connected with the steam inlet of steam turbine high-pressure cylinder by main steam line, the steam-expelling port of this steam turbine high-pressure cylinder connects exhaust heat boiler by cold reheaing steam pipe, the medium pressure steam outlet of this exhaust heat boiler is connected with the steam inlet of Steam Turbine Through IP Admission by the reheat heat steam line, the low pressure steam outlet of this exhaust heat boiler is connected with the steam inlet of turbine low pressure cylinder by the low pressure steam pipeline, what steam (vapor) outlet of this turbine low pressure cylinder end is connected with vaporizer steam inlet in the organic rankine cycle system by extraction line, and the water of condensation of this vaporizer exports passes through the low pressure feed water pipeline and condensate pump is connected with the backwater mouth of exhaust heat boiler.
Its gaseous state organic working medium outlet of vaporizer in the described organic rankine cycle system connects organic Rankine cycle generator set, its relief opening of this organic Rankine circulating generation unit connects the suction port of condenser, and the liquid organic working medium outlet of this condenser connects the liquid organic working medium import of this vaporizer by working medium pump.
Compared with prior art, the utlity model has following characteristics:
Figure 2012203194378100002DEST_PATH_IMAGE002
Extract what steam of steam turbine end, send in the organic rankine cycle system vaporizer and go, vaporizer substitutes original turbine condenser, send into original circulation system after turbine discharge is condensed into liquid state, because there is phase transformation in the vaporizer heat exchange, will be so that its volume greatly reduces and effectively save occupation of land.
Figure DEST_PATH_IMAGE004
Utilize the turbine discharge residual heat resources by organic Rankine circulation and generator set thereof, utilize the mode of drawing gas, improve to a certain extent waste heat source grade, for organic Rankine circulation means adopting parameters creates favorable conditions.
Figure DEST_PATH_IMAGE006
Organic rankine cycle system is relatively independent, to the not change of original combustion machine system, has only changed a part of device in extracted steam from turbine, the circulation, has effectively reduced the change to original circulating power station, is applicable to the project of modernizing and expanding the existing factory.
Figure DEST_PATH_IMAGE008
The utility model has reclaimed the latent heat of vaporization of turbine discharge to greatest extent, has improved the generating efficiency in Gas-steam Combined Cycle power station, has increased system's output power.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram.
Among the figure: the 1-gas compressor; The 2-firing chamber; The 3-combustion gas turbine; The 4-exhaust heat boiler; 5-reheat heat steam line; 6-low pressure steam pipeline; 7-low pressure feed water pipeline; The 8-main steam line; The cold reheaing steam pipe of 9-; The 10-condensate pump; 11-moisturizing pipeline; The 12-vaporizer; The 13-steam turbine high-pressure cylinder; The 14-circulation; The 15-working medium pump; The 16-condenser; 17-organic Rankine circulating generation unit; The 18-extraction line; The 19-turbine low pressure cylinder; The 20-Steam Turbine Through IP Admission.
Embodiment
The utility model is described in further detail below in conjunction with embodiment.
The present embodiment describes as an example of 700MW Gas-steam Combined Cycle power station (two drag) reforming mode example.
Referring to Fig. 1, this fuel gas-steam-organic working medium combined cycle generating unit is comprised of Gas-steam Combined Cycle thermodynamic system and organic rankine cycle system two-part, and each parts annexation is in the system:
The high pressure steam outlet of exhaust heat boiler 4 is connected with the steam inlet of steam turbine high-pressure cylinder 13 by main steam line 8, the steam-expelling port of this steam turbine high-pressure cylinder 13 connects exhaust heat boiler 4 by cold reheaing steam pipe 9, the medium pressure steam outlet of this exhaust heat boiler 4 is connected with the steam inlet of Steam Turbine Through IP Admission 20 by reheat heat steam line 5, the low pressure steam outlet of this exhaust heat boiler 4 is connected with the steam inlet of turbine low pressure cylinder 19 by low pressure steam pipeline 6, this turbine low pressure cylinder 19 what steam (vapor) outlet of end are connected with vaporizer 12 steam inlets in the organic rankine cycle system by extraction line 18, and the water of condensation of this vaporizer 12 exports passes through low pressure feed water pipeline 7 and condensate pump 10 is connected with the backwater mouth of exhaust heat boiler 4; Vaporizer 12 its gaseous state organic working medium outlets connect organic Rankine cycle generator set 17, these organic Rankine circulating generation unit 17 its relief openings connect the suction port of condenser 16, the liquid organic working medium outlet of this condenser 16 connects the liquid organic working medium import of this vaporizer 12 by working medium pump 15, condenser 16 connects circulation 14.
System principle of the present utility model is summarized as follows:
Air by gas compressor 1 compression after, send into firing chamber 2 and rock gas mixed combustion, obtain high-temperature fuel gas and in combustion gas turbine 3 after the acting temperature, pressure all reduce to discharge again and finish circulation; Exhaust heat boiler 4 is accepted combustion gas turbine 3 axial exhausts, and produce the steam of three kinds of pressure levels, high pressure steam is sent into steam turbine high-pressure cylinder 13 by main steam line 8, steam turbine high-pressure cylinder 13 steam discharges are sent again heat of exhaust heat boiler 4 back to by cold reheaing steam pipe 9, after mixing with medium pressure steam, reheated steam sends into Steam Turbine Through IP Admission 20 actings by reheat heat steam line 5, low pressure steam mixes with Steam Turbine Through IP Admission 20 steam discharges and sends into turbine low pressure cylinder 19 actings by low pressure steam pipeline 6, extract turbine low pressure cylinder 19 what steam of end and send into condensation in the vaporizer 12 by extraction line 18, the water after condensing is boosted by condensate pump 10 and sends into exhaust heat boiler by low pressure feed water pipeline 7 and finish circulation; Organic working medium is evaporated to the steam of certain parameter and directly sends into 17 actings of organic Rankine circulating generation unit in vaporizer 12, its exhaust is condensed into liquid state through condenser 16, waste heat is transferred in the middle of the environment by circulation 14, after liquid organic working medium is boosted through working medium pump 15, send into vaporizer 12 and finish circulation, consist of thus the thermodynamic system of fuel gas-steam-organic working medium combined cycle.
Core technology of the present utility model is the organic rankine cycle system that has been coupled in existing Gas-steam Combined Cycle thermodynamic system, makes the power station generating efficiency bring up to 55% by original 52%, and installed capacity of power station has been brought up to 740MW by 700MW.。

Claims (3)

1. fuel gas-steam-organic working medium combined cycle generating unit, comprise Gas-steam Combined Cycle thermodynamic system, organic rankine cycle system, it is characterized in that, what steam (vapor) outlet of turbine low pressure cylinder in described Gas-steam Combined Cycle thermodynamic system end is connected with vaporizer steam inlet in the described organic rankine cycle system by extraction line, and the water of condensation of this vaporizer exports passes through the low pressure feed water pipeline and condensate pump is connected with the backwater mouth of exhaust heat boiler.
2. described fuel gas-steam as claimed in claim 1-organic working medium combined cycle generating unit, it is characterized in that, the high pressure steam outlet of the exhaust heat boiler in the described Gas-steam Combined Cycle thermodynamic system is connected with the steam inlet of steam turbine high-pressure cylinder by main steam line, the steam-expelling port of this steam turbine high-pressure cylinder connects exhaust heat boiler by cold reheaing steam pipe, the medium pressure steam outlet of this exhaust heat boiler is connected with the steam inlet of Steam Turbine Through IP Admission by the reheat heat steam line, the low pressure steam outlet of this exhaust heat boiler is connected with the steam inlet of turbine low pressure cylinder by the low pressure steam pipeline, what steam (vapor) outlet of this turbine low pressure cylinder end is connected with vaporizer steam inlet in the organic rankine cycle system by extraction line, and the water of condensation of this vaporizer exports passes through the low pressure feed water pipeline and condensate pump is connected with the backwater mouth of exhaust heat boiler.
3. described fuel gas-steam as claimed in claim 1-organic working medium combined cycle generating unit, it is characterized in that, its gaseous state organic working medium outlet of vaporizer in the described organic rankine cycle system connects organic Rankine cycle generator set, its steam-expelling port of this organic Rankine circulating generation unit connects the steam inlet of condenser, and the liquid organic working medium outlet of this condenser connects the liquid organic working medium import of this vaporizer by working medium pump.
CN 201220319437 2012-07-04 2012-07-04 Fuel-steam-organic working medium combined cycle power generation unit Expired - Fee Related CN202645658U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220319437 CN202645658U (en) 2012-07-04 2012-07-04 Fuel-steam-organic working medium combined cycle power generation unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220319437 CN202645658U (en) 2012-07-04 2012-07-04 Fuel-steam-organic working medium combined cycle power generation unit

Publications (1)

Publication Number Publication Date
CN202645658U true CN202645658U (en) 2013-01-02

Family

ID=47414778

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220319437 Expired - Fee Related CN202645658U (en) 2012-07-04 2012-07-04 Fuel-steam-organic working medium combined cycle power generation unit

Country Status (1)

Country Link
CN (1) CN202645658U (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103075215A (en) * 2013-01-27 2013-05-01 南京瑞柯徕姆环保科技有限公司 Extracted steam type steam Rankine-ammonia steam Rankine combined cycle power generation device
CN103075213A (en) * 2013-01-27 2013-05-01 南京瑞柯徕姆环保科技有限公司 Cascade type steam Rankine combined cycle generating device
CN103075251A (en) * 2013-01-27 2013-05-01 南京瑞柯徕姆环保科技有限公司 Britten-steam extraction type rankine combined cycle power generation device
CN103075214A (en) * 2013-01-27 2013-05-01 南京瑞柯徕姆环保科技有限公司 Extracted steam type steam Rankine combined cycle power generation device
CN103075216A (en) * 2013-01-27 2013-05-01 南京瑞柯徕姆环保科技有限公司 Brayton-cascade steam Rankine combined cycle power generation system
CN103089352A (en) * 2013-01-27 2013-05-08 南京瑞柯徕姆环保科技有限公司 Mixed type steam Rankine combined cycle power generation device
CN103089351A (en) * 2013-01-27 2013-05-08 南京瑞柯徕姆环保科技有限公司 Steam extraction type steam Rankine-low boiling point working medium Rankine combined cycle power generation device
CN103089442A (en) * 2013-01-27 2013-05-08 南京瑞柯徕姆环保科技有限公司 Brayton-steam Rankine-organic Rankine combined cycle power generation device
CN103147806A (en) * 2013-01-27 2013-06-12 南京瑞柯徕姆环保科技有限公司 Steam Rankine-organic Rankine combined cycle power generation device
CN103527271A (en) * 2013-10-21 2014-01-22 上海交通大学 Passive low-temperature heat energy organic matter working medium electricity generation method
CN103711670A (en) * 2013-12-26 2014-04-09 中国能源建设集团广东省电力设计研究院 Feed pump system of combined cycle power station
CN107098422A (en) * 2017-04-27 2017-08-29 江苏科技大学 A kind of Ship Waste Heat desalination system and desalination method
US10060302B2 (en) 2013-10-21 2018-08-28 Shanghai Jiaotong University Passive low temperature heat sources organic working fluid power generation method
CN109269311A (en) * 2018-09-03 2019-01-25 河海大学常州校区 A kind of steam Rankine-organic Rankine combined cycle coke oven Waste Heat Recovery electricity generation system

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103147806A (en) * 2013-01-27 2013-06-12 南京瑞柯徕姆环保科技有限公司 Steam Rankine-organic Rankine combined cycle power generation device
CN103075215B (en) * 2013-01-27 2015-06-10 南京瑞柯徕姆环保科技有限公司 Extracted steam type steam Rankine-ammonia steam Rankine combined cycle power generation device
CN103075215A (en) * 2013-01-27 2013-05-01 南京瑞柯徕姆环保科技有限公司 Extracted steam type steam Rankine-ammonia steam Rankine combined cycle power generation device
CN103075214A (en) * 2013-01-27 2013-05-01 南京瑞柯徕姆环保科技有限公司 Extracted steam type steam Rankine combined cycle power generation device
CN103075216A (en) * 2013-01-27 2013-05-01 南京瑞柯徕姆环保科技有限公司 Brayton-cascade steam Rankine combined cycle power generation system
CN103089352A (en) * 2013-01-27 2013-05-08 南京瑞柯徕姆环保科技有限公司 Mixed type steam Rankine combined cycle power generation device
CN103089351A (en) * 2013-01-27 2013-05-08 南京瑞柯徕姆环保科技有限公司 Steam extraction type steam Rankine-low boiling point working medium Rankine combined cycle power generation device
CN103089442A (en) * 2013-01-27 2013-05-08 南京瑞柯徕姆环保科技有限公司 Brayton-steam Rankine-organic Rankine combined cycle power generation device
CN103075251A (en) * 2013-01-27 2013-05-01 南京瑞柯徕姆环保科技有限公司 Britten-steam extraction type rankine combined cycle power generation device
CN103075251B (en) * 2013-01-27 2015-10-21 南京瑞柯徕姆环保科技有限公司 Boulez pauses-steam-extracting type steam Rankine combined cycle generating unit
CN103089351B (en) * 2013-01-27 2015-06-10 南京瑞柯徕姆环保科技有限公司 Steam extraction type steam Rankine-low boiling point working medium Rankine combined cycle power generation device
CN103075213A (en) * 2013-01-27 2013-05-01 南京瑞柯徕姆环保科技有限公司 Cascade type steam Rankine combined cycle generating device
CN103147806B (en) * 2013-01-27 2015-06-10 南京瑞柯徕姆环保科技有限公司 Steam Rankine-organic Rankine combined cycle power generation device
US10060302B2 (en) 2013-10-21 2018-08-28 Shanghai Jiaotong University Passive low temperature heat sources organic working fluid power generation method
CN103527271A (en) * 2013-10-21 2014-01-22 上海交通大学 Passive low-temperature heat energy organic matter working medium electricity generation method
CN103711670A (en) * 2013-12-26 2014-04-09 中国能源建设集团广东省电力设计研究院 Feed pump system of combined cycle power station
CN103711670B (en) * 2013-12-26 2016-08-17 中国能源建设集团广东省电力设计研究院有限公司 The feed-water pump of circulating power station
CN107098422A (en) * 2017-04-27 2017-08-29 江苏科技大学 A kind of Ship Waste Heat desalination system and desalination method
CN109269311A (en) * 2018-09-03 2019-01-25 河海大学常州校区 A kind of steam Rankine-organic Rankine combined cycle coke oven Waste Heat Recovery electricity generation system

Similar Documents

Publication Publication Date Title
CN202645658U (en) Fuel-steam-organic working medium combined cycle power generation unit
US10247050B2 (en) Energy tower of multi-energy-form output for stepwise recovering waste heat of a gas engine
CN102878603B (en) Gas-steam circulation combined double-stage coupling heat pump heat supply device
CN102022144B (en) Thermal power generation system with function of exhaust steam recovery
CN103256644B (en) Low-pressure expanded economizer system
CN108119200A (en) A kind of new bottom type back pressure heat supply steam turbine and its operation method
CN101666250A (en) System for improving low-temperature heat source power generation capacity by using injection pump
CN103967544A (en) Waste heat utilization system of gas-steam combined cycle generator set
CN104763484A (en) High backpressure heat supplying combined generating method for air-cooling steam turbine
CN105736068A (en) High-back pressure combined heat and power generation system coupled with exhaust steam and supply heat of non-reheat steam turbine
CN106761982A (en) A kind of new part backheating gas turbine combined cycle system
CN108119191A (en) The new complementary energy exhaust heat recovery power generation reconstruction structure of steel plant and its method of work
CN112856363B (en) System and method for improving heat supply steam parameters of deep peak shaving heat supply unit
CN210176512U (en) Seawater desalination system utilizing waste heat of gas turbine
CN103982252A (en) Novel process combination of high-speed and efficient single reheating steam turbine and power generation of small power plant
CN111908542A (en) Seawater desalination system and method utilizing waste heat of gas turbine
CN212408812U (en) Thermoelectric decoupling system
CN102392700A (en) Novel backpressure turbine with low vacuum regenerative heat
CN204704010U (en) A kind of bootstrap system of distributed energy
CN210088955U (en) Combined cycle device for steam extraction integration and heat storage peak regulation coupling
CN104594964A (en) Novel single-shaft natural gas combined cycle heat supply unit system
CN202707153U (en) Thermoelectricity cooling co-production system utilizing steam heat accumulator
CN207934942U (en) The novel complementary energy exhaust heat recovery power generation reconstruction structure of steel plant
CN203215658U (en) Expansible low-pressure coal economizer system
CN102817650A (en) Method for increasing generating efficiency of power station through absorption heat pump

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

Granted publication date: 20130102

Termination date: 20150704

EXPY Termination of patent right or utility model