CN206256941U - A kind of condensing turbine organic working medium circulating cooling system - Google Patents
A kind of condensing turbine organic working medium circulating cooling system Download PDFInfo
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- CN206256941U CN206256941U CN201620916773.9U CN201620916773U CN206256941U CN 206256941 U CN206256941 U CN 206256941U CN 201620916773 U CN201620916773 U CN 201620916773U CN 206256941 U CN206256941 U CN 206256941U
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Abstract
A kind of condensing turbine organic working medium circulating cooling system, is made up of evaporator, expanding machine, generator, rotating machinery, organic working medium pump, condenser, switch valve, air extractor.The cooling water recirculation system that existing condensing turbine exhaust steam cooling is used is replaced with organic working medium circulating cooling system as " the second condenser " by the system, it is effectively reduced the internal circulating load of exhaust steam cooling working medium, simultaneously electric energy or useful work are externally exported using the exhaust steam latent heat that temperature range is 70 DEG C~85 DEG C, by energy-dissipating type cooling transformation for production capacity type is cooled down, the comprehensive utilization rate of energy source of power plant for self-supply's boiler circuit is improve.
Description
Technical field
The utility model is related to a kind of condensing turbine organic working medium circulating cooling system.
Background technology
In power plant for self-supply's boiler circuit of the industries such as chemical industry, Coal Chemical Industry, metallurgy, generally carried out using condensing turbine
Generate electricity (see accompanying drawing 1), the superheated vapour feeding steam turbine 2 that boiler 1 is produced, the expansion work of steam turbine 2 drives generator 3 to send out
Electricity, the negative pressure water vapour after expansion becomes condensate after condenser 4 is cooled down, by the feeding boiler feedwater of condensate pump 5 system
System, carries out preheating and deoxygenation is processed by low pressure heat exchanger 6 and oxygen-eliminating device 7, then by boiler feed pump 8 and high pressure heat exchanger 9
Feeding boiler is recycled.Condenser 4 is cooled down by cooling circulating water pump 10, feeding cooling tower, exhaust steam in steam turbine cooling
The heat of release is discharged into air by recirculated cooling water.This mode is not only without effectively using the latent of negative pressure water vapour
Heat, and the water circulation amount of the cooling tower circulatory system is big, and cooling water pump, cooling tower need to consume a large amount of electric energy.
In consideration of it, needing a kind of highly efficient circulating cooling system of design, to solve the defect of said system scheme, carry
The comprehensive utilization rate of energy source of power plant for self-supply's boiler circuit high.
The content of the invention
To overcome the shortcomings of that the existing condensing turbine condenser type of cooling is present, the utility model provides a kind of condensing
Formula steam turbine organic working medium circulating cooling system, the system can effectively reduce the internal circulating load of exhaust steam cooling working medium, while utilizing
Temperature range is that 70 DEG C~85 DEG C of exhaust steam latent heat externally exports electric energy or useful work, is that production capacity type is cold by energy-dissipating type cooling transformation
But, the comprehensive utilization rate of energy source of boiler circuit is improved.
The technical solution adopted in the utility model is：A kind of condensing turbine organic working medium circulating cooling system, including
Boiler, boiler feed pump, oxygen-eliminating device, condensate pump, air extractor, condenser, steam turbine, the first generator, evaporator, expansion
Machine, condenser and organic working medium pump；
High-pressure heater is set between boiler and boiler feed pump, low-pressure heating is set between oxygen-eliminating device and condensate pump
Device, oxygen-eliminating device is also connected with boiler feed pump and water treatment facilities respectively, and condenser connects condensate pump, condensing by pipeline
Air extractor and valve are provided with pipeline between device and condensate pump；
Condenser connects steam turbine, and valve is set between condenser and steam turbine；Condenser also with cooling circulating water
Pump is connected；The pipeline entered for recirculated water is provided with condenser；
Condenser also by with valvular pipeline connect evaporator, evaporator connection air extractor, and evaporator with
Valve is set between air extractor；
Described steam turbine is connected with the first generator and boiler respectively；
The gas outlet of described evaporator passes sequentially through expanding machine, condenser and organic working medium pump and is connected to entering for evaporator
Gas port.
It is preferred that, the utility model also includes the second generator, and described expanding machine connects the second generator.
It is preferred that, the utility model also includes rotating machinery, described expanding machine connection rotating machinery.
The cooling water recirculation system that existing condensing turbine exhaust steam cooling is used is replaced with into organic working medium circulating cooling
, used as " the second condenser ", the system is by evaporator 100, expanding machine 101, generator 102, rotating machinery 202, condenser for system
103rd, organic working medium pump 104, valve 105~108, air extractor 109 are constituted, wherein evaporator 100 and exhaust steam in steam turbine pipeline
System is connected, and absorbs the latent heat produced in exhaust steam cooling procedure, the organic working medium in system is converted into gaseous state, gaseous state by liquid
Organic working medium promotes expanding machine 101 to drive generator 102 to generate electricity or directly dragging rotating machinery 202 externally acting；Organic working medium
Weary gas is cooled to liquid refrigerant in condenser 103, and under the driving of organic working medium pump 104, liquid refrigerant enters evaporator evaporation,
Complete circulation；The vacuum of evaporator is ensured by the continuous service of air extractor 109；Organic working medium circulating cooling system and original
The switching of cooling water recirculation system is realized by valve 105~108.
The beneficial effects of the utility model are：A kind of condensing turbine organic working medium circulating cooling system, substitutes original
Cooling water recirculation system, greatly reduces the internal circulating load of exhaust steam cooling working medium, while being sent out using the latent heat of exhaust steam in steam turbine
Electricity or direct dragging rotating machinery externally do work, and realize transformation of the type of cooling by energy-dissipating type to production capacity type, make power plant for self-supply's vapour
The comprehensive utilization rate of energy source of water system is greatly improved, and effects of energy saving and emission reduction substantially, is with a wide range of applications.
Brief description of the drawings
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schematic diagram of existing condensing turbine circulating cooling system.
Fig. 2 is a kind of condensing turbine organic working medium circulating cooling system schematic diagram of the utility model.
Fig. 3 is a kind of condensing turbine organic working medium circulating cooling system schematic diagram of the utility model of embodiment two.
In figure：1. boiler, 2. steam turbine, 3. generator, 4. condenser, 5. condensate pump, 6. low-pressure heater, 7. deoxygenation
Device, 8. boiler feed pump, 9. high-pressure heater, 10. cooling circulating water pump, 11. water treatment facilities, 100. evaporators, 101. is swollen
Swollen machine, 102. generators, 103. condensers, 104. organic working medium pumps, 105. valves, 106. valves, 107. valves, 108. valves
Door, 109. air extractors, 202. rotating machineries.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Embodiment one
A kind of condensing turbine organic working medium circulating cooling system, including it is boiler 1, boiler feed pump 8, oxygen-eliminating device 7, solidifying
Bear water pump 5, air extractor 109, condenser 4, steam turbine 2, the first generator 3, evaporator 100, expanding machine 101, condenser 103
With organic working medium pump 104；
High-pressure heater 9 is set between boiler 1 and boiler feed pump 8, low pressure is set between oxygen-eliminating device 7 and condensate pump 5
Heater 6, oxygen-eliminating device 7 is also connected with boiler feed pump 8 and water treatment facilities 11 respectively, and condenser 4 connects solidifying by pipeline
Pump 5 is born water, air extractor 109 and valve are provided with the pipeline between condenser 4 and condensate pump 5；
Condenser 4 connects steam turbine 2, and sets valve between condenser 4 and steam turbine 2；Condenser 4 is also followed with cooling
Ring water pump 10 is connected；The pipeline entered for recirculated water is provided with condenser 4；
Condenser 4 also connects evaporator 100 by with valvular pipeline, and evaporator 100 connects air extractor 109, and
Valve is set between evaporator 100 and air extractor 109；
Described steam turbine 2 is connected with the first generator 3 and boiler 1 respectively；
The gas outlet of described evaporator 100 passes sequentially through expanding machine 101, condenser 103 and organic working medium pump 104 and connects
To the air inlet of evaporator 100.
Preferably, the utility model also includes the second generator 102, and described expanding machine 101 connects the second generator
102。
Installed capacity is the thermal power generation system of 75MW, and the capacity of steam turbine is 220t/h in power generation process, weary gas ginseng
Number is 34kPa, 72 DEG C of saturated vapor.As shown in Fig. 2 valve 105 and valve 106 are opened, valve 107 and valve 108 are closed,
Exhaust steam in steam turbine is set to enter the evaporator 100 of organic working medium circulating cooling system, exhaust steam is in the evaporator in certain vacuum degree
Heat is discharged in 100, the organic working medium in organic working medium cooling system is converted into gaseous state by liquid；High-pressure gaseous working medium is promoted
Expanding machine 101 is rotated, and drives the work of generator 102 to produce electric energy；Low pressure organic working medium from the discharge of expanding machine 101 is by condensation
The cooling of device 103 becomes liquid, and in the presence of organic working medium pump 104, liquid organic working medium enters evaporator, completes circulation.
During this, the latent heat of exhaust steam is absorbed in evaporator by organic working medium, becomes 72 DEG C of saturation waters, and via boiler feed pump
Boiler is sent back to, so as to complete the power generation cycle of boiler circuit.The vacuum of evaporator comes true by the continuous service of air extractor 109
Protect.
When organic working medium circulating cooling system is overhauled, valve 105 and valve 106 are closed, and valve 107 and valve 108 are opened
Open.Now, exhaust steam in steam turbine enters the condenser of original cooling system, and saturation water is condensed into condenser, and via pot
Stove feedwater pumped back boiler, so as to ensure the reliable and stable operation of power generation cycle of original boiler circuit.
Exhaust steam in steam turbine can produce the net electric generation of 10089kW by organic working medium circulating cooling system, and primary electricity is
System uses cooling circulating water system, and the power consumption in cooling procedure is 4224kW, comprehensive two, the section that the utility model is produced
Energy income is 14313kW.
Embodiment two
A kind of organic working medium circulating cooling system of condensing turbine 2, including boiler 1, boiler feed pump 8, oxygen-eliminating device 7,
Condensate pump 5, air extractor 109, condenser 4, steam turbine 2, the first generator 3, evaporator 100, expanding machine 101, condenser
103 and organic working medium pump 104；
High-pressure heater 9 is set between boiler 1 and boiler feed pump 8, low pressure is set between oxygen-eliminating device 7 and condensate pump 5
Heater 6, oxygen-eliminating device 7 is also connected with boiler feed pump 8 and water treatment facilities 11 respectively, and condenser 4 connects solidifying by pipeline
Pump 5 is born water, air extractor 109 and valve are provided with the pipeline between condenser 4 and condensate pump 5；
Condenser 4 connects steam turbine 2, and sets valve between condenser 4 and steam turbine 2；Condenser 4 is also followed with cooling
Ring water pump 10 is connected；The pipeline entered for recirculated water is provided with condenser 4；
Condenser 4 also connects evaporator 100 by with valvular pipeline, and evaporator 100 connects air extractor 109, and
Valve is set between evaporator 100 and air extractor 109；
Described steam turbine 2 is connected with the first generator 3 and boiler 1 respectively；
The gas outlet of described evaporator 100 passes sequentially through expanding machine 101, condenser 103 and organic working medium pump 104 and connects
To the air inlet of evaporator 100.
Preferably, the utility model also includes rotating machinery 202, the described connection rotating machinery 202 of expanding machine 101.
Fig. 3 is referred to, embodiment two is with the difference of embodiment one, in the present embodiment, expanding machine 101 is directly dragged certainly
Externally useful work is done for the pump of power plant, blower fan, air compressor machine or other kinds of rotating machinery 202.
Obviously, embodiment described above is only a part of embodiment of the utility model, rather than whole embodiments.
Based on the embodiment in the utility model, those of ordinary skill in the art are obtained on the premise of creative work is not made
Every other embodiment, belong to the utility model protection scope.
Claims (3)
1. a kind of condensing turbine organic working medium circulating cooling system, it is characterised in that：It include boiler, boiler feed pump,
Oxygen-eliminating device, condensate pump, air extractor, condenser, steam turbine, the first generator, evaporator, expanding machine, condenser and organic
Working medium pump；
High-pressure heater is set between boiler and boiler feed pump, low-pressure heater is set between oxygen-eliminating device and condensate pump, remove
Oxygen device is also connected with boiler feed pump and water treatment facilities respectively, condenser by pipeline connect condensate pump, condenser with
Air extractor and valve are provided with pipeline between condensate pump；
Condenser connects steam turbine, and valve is set between condenser and steam turbine；Condenser also connects with cooling circulating water pump
Connect；The pipeline entered for recirculated water is provided with condenser；
Condenser also connects evaporator, evaporator connection air extractor by with valvular pipeline, and in evaporator and is evacuated
Valve is set between device；
Described steam turbine is connected with the first generator and boiler respectively；
The gas outlet of described evaporator passes sequentially through the air inlet that expanding machine, condenser and organic working medium pump are connected to evaporator
Mouthful.
2. a kind of condensing turbine organic working medium circulating cooling system according to claim 1, it is characterised in that：It is also
Including the second generator, described expanding machine connects the second generator.
3. a kind of condensing turbine organic working medium circulating cooling system according to claim 1, it is characterised in that：It is also
Including rotating machinery, described expanding machine connection rotating machinery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620916773.9U CN206256941U (en) | 2016-08-23 | 2016-08-23 | A kind of condensing turbine organic working medium circulating cooling system |
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| CN201620916773.9U CN206256941U (en) | 2016-08-23 | 2016-08-23 | A kind of condensing turbine organic working medium circulating cooling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089343A (en) * | 2016-08-23 | 2016-11-09 | 四川开山新玛能源科技有限公司 | A kind of condensing turbine organic working medium circulating cooling system |
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2016
- 2016-08-23 CN CN201620916773.9U patent/CN206256941U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089343A (en) * | 2016-08-23 | 2016-11-09 | 四川开山新玛能源科技有限公司 | A kind of condensing turbine organic working medium circulating cooling system |
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