CN205349534U - Gas steam combination system - Google Patents
Gas steam combination system Download PDFInfo
- Publication number
- CN205349534U CN205349534U CN201521144797.9U CN201521144797U CN205349534U CN 205349534 U CN205349534 U CN 205349534U CN 201521144797 U CN201521144797 U CN 201521144797U CN 205349534 U CN205349534 U CN 205349534U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- steam
- fuel
- gas turbine
- exchanger channels
- 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.)
- Active
Links
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
- Air Supply (AREA)
Abstract
The utility model relates to a gas steam combination system, gas steam combination system includes: gas generator set, steam circuit, air heater, the preheating of fuel ware, some feedwater of heating through the water heater that condenses get into air heater and preheating of fuel ware respectively, and the preheating of air of air heater to getting into gas turbine makes the air temperature rise, the preheating of fuel of preheating of fuel ware to getting into gas turbine makes the fuel temperature rise, and air and fuel after the intensification get into gas turbine burning acting, and air and fuel burning after the intensification are more stable to gas turbine's exhaust temperature is higher, and increase steam circuit's feedwater flow this moment, makes its flue gas heat transfer with the more high temperature of gas turbine emission obtain bigger steam volume, makes more large -traffic steam get into the steam turbine acting.
Description
Technical field
This utility model belongs to energy field, is specifically related to a kind of combustion and steam association system.
Background technology
The operating condition of combustion and steam association system adjusts in real time according to its load condition, and due to the change of load, combustion and steam association system tends not to generate electricity at full capacity, and during underload, combustion and steam association system is relatively inefficient.
Improving steam cycle efficiency main path at present is that the steam inlet condition increasing steam turbine is thus improving the mechanical efficiency of steam turbine, but, select steam turbine and the waste heat boiler of higher pressure and higher temperature, increase considerably power plant's initial cost, payoff period is longer, no matter it is new-built unit or old Transformation of Unit, is all unfavorable for promoting.
Utility model content
Based on this, this utility model is in that to overcome the defect of prior art, it is provided that a kind of combustion and steam association system, the thermal efficiency is high, and equipment manufacturing cost is low.
Its technical scheme is as follows:
A kind of combustion and steam association system, including: Gas Generator Set, described Gas Generator Set includes gas turbine；Steam circuit, described steam circuit is provided with waste heat boiler, steam turbine, condenser, and condensation water heater, it is provided with residual heat flue in described waste heat boiler, condensation water heater is installed in described residual heat flue, from described condensation water heater to the pipeline of described waste heat boiler, on the pipeline of described condensation water heater, or the pipeline in described waste heat boiler is provided with the first pump mouth, and second pump mouth, from described condenser to the pipeline of described condensation water heater, or the pipeline of described condensation water heater is provided with the first water supplement port, and second water supplement port；Air preheater, described air preheater has the first heat exchanger channels and the second heat exchanger channels that cooperate；Fuel preheater, described fuel preheater has the 3rd heat exchanger channels and the 4th heat exchanger channels that match；Wherein, described residual heat flue docks with the exhanst gas outlet of described gas turbine, the import of described first heat exchanger channels is docked with described first pump mouth, the outlet of described first heat exchanger channels is docked with described first water supplement port, the import of described second heat exchanger channels is docked with air source, and the outlet of described second heat exchanger channels is docked with the air intlet of described gas turbine；The import of described 3rd heat exchanger channels, outlet are docked with described second pump mouth, described second water supplement port respectively, and the import of described 4th heat exchanger channels is docked with fuel gas source, and the outlet of described 4th heat exchanger channels is docked with the fuel inlet of described gas turbine.
Wherein in an embodiment, between described condensation water heater and described air preheater, it is provided with flow valve.
Wherein in an embodiment, between described condensation water heater and described fuel preheater, it is provided with adjustment valve.
Wherein in an embodiment, the air intlet of described gas turbine is provided with temperature sensor；Or/and, the fuel inlet of described gas turbine is provided with temperature sensor.
Wherein in an embodiment, on the flow of flue gas direction in described residual heat flue, described condensation water heater is the most end first-class heat exchanger in described residual heat flue.
Wherein in an embodiment, it it is 70 DEG C to 90 DEG C from the temperature of the feedwater of the described first pump mouth described air preheater of entrance；Or, it is 70 DEG C to 90 DEG C from the temperature of the feedwater of the described second pump mouth described fuel preheater of entrance.
A kind of combustion and steam association system, including: Gas Generator Set, described Gas Generator Set includes gas turbine；Steam circuit, described steam circuit is provided with in waste heat boiler, steam turbine, described waste heat boiler and is provided with residual heat flue；Afterheat heat exchanger, air preheater and fuel preheater, described air preheater has the first heat exchanger channels and the second heat exchanger channels that cooperate, and described fuel preheater has the 3rd heat exchanger channels and the 4th heat exchanger channels that match；Wherein, described residual heat flue docks with the exhanst gas outlet of described gas turbine, described residual heat flue docks with the exhanst gas outlet of described gas turbine, described first heat exchanger channels, described 3rd heat exchanger channels dock with described afterheat heat exchanger respectively, described second heat exchanger channels docks with the air intlet of described gas turbine, and described 4th heat exchanger channels docks with the fuel inlet of described gas turbine.
Wherein in an embodiment, described steam circuit is additionally provided with at least one-level steam circulation heat exchanger, described steam circulation heat exchanger is installed in described residual heat flue, on flow of flue gas direction in described residual heat flue, described afterheat heat exchanger is positioned at the downstream of steam circulation heat exchanger described in most end one-level.
A kind of combustion and steam association system progress control method, including: fuel and air enter work by combustion in gas turbine, flue gas after acting enters the residual heat flue of waste heat boiler, and the feedwater of steam circuit is heated, the steam that becomes after feedwater heating enters steam turbine acting, steam after acting enters condenser and is condensed into feedwater, and feedwater is back to waste heat boiler through condensation water heater；Give in the first heat exchanger channels that water enters air preheater from the first pump mouth in the middle part of condensation water heater, air in second heat exchanger channels of air heat exchanger is preheated, air is warmed, to water for cooling, air after intensification enters gas turbine combustion, and the feedwater after cooling is back to condensation water heater from the first water supplement port；Give in the 3rd heat exchanger channels that water enters fuel preheater from the second pump mouth in the middle part of condensation water heater, fuel in 4th heat exchanger channels of fuel heat exchangers is preheated, fuel is warmed, to water for cooling, fuel after intensification enters gas turbine combustion, and the feedwater after cooling is back to condensation water heater from the second water supplement port.
Wherein in an embodiment, the temperature according to the gas turbine air intake place air that temperature sensor detects, regulate flow valve, control to enter from the first pump mouth the feedwater flow of air preheater, thus controlling to enter the temperature of the air of gas turbine；Or, the temperature according to the gas turbine fuel porch fuel that temperature sensor detects, regulate valve, control to enter from the second pump mouth the feedwater flow of fuel preheater, thus controlling to enter the temperature of the fuel of gas turbine.
The beneficial effects of the utility model are in that:
Part feedwater through condensation water heater heating respectively enters air preheater and fuel preheater, and the air preheater air preheat to entering gas turbine makes air themperature raise；The fuel preheater fuel preheating to entering gas turbine, fuel temperature is made to raise, air and fuel after intensification enter gas turbine combustion acting, air and fuel combustion after intensification are more stable, and the delivery temperature of gas turbine is higher, now increase the feedwater flow of steam circuit so that it is obtain bigger quantity of steam with the flue gas heat exchange of the higher temperature of discharge of gas turbine, make the steam of greater flow enter steam turbine acting.Steam now maintains original steam pressure and temperature waits steam operational factor constant substantially, and these more steam enters steam turbine acting and obtains bigger exerting oneself, and improves the efficiency of whole combustion and steam association system.And, condensation water heater is installed in residual heat flue, owing to from condensation water heater, extracting part gives water entrance air preheater, in condensation water heater, the flow of feedwater increases relative to the steam circuit feedwater flow being not provided with air preheater, so that condensation water heater increases with the heat of flue gas exchange in residual heat flue, the exhaust temperature of flue gas reduces, and improves the thermal efficiency of whole combustion and steam circulation.On the other hand, air preheater does not change the steam operational factor of steam circuit, it is not necessary to adopt the better material of heat resisting and pressure resisting, avoids being greatly improved the cost of whole system while improving the thermal efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the combustion and steam association system of this utility model embodiment one；
Fig. 2 is the structural representation of the combustion and steam association system of this utility model embodiment two.
Description of reference numerals:
100, gas turbine, 210, waste heat boiler, 211, residual heat flue, 220, steam turbine, 230, condenser, 231, condensate pump, 240, condensation water heater, 300, afterheat heat exchanger, 310, air preheater, 320, flow valve, 410, fuel preheater, 420, regulate valve.
Detailed description of the invention
Below this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment one
As shown in Figure 1, combustion and steam association system, including: Gas Generator Set, steam circuit, air preheater 310 and fuel preheater 410, Gas Generator Set includes gas turbine 100, and gas turbine 100 has fuel gas inlet, air intlet and exhanst gas outlet；Steam circuit is provided with waste heat boiler 210, steam turbine 220, condenser 230, and condensation water heater 240, residual heat flue 211 it is provided with in waste heat boiler 210, condensation water heater 240 is installed in residual heat flue 211, from the pipeline of condensation water heater 240 to waste heat boiler 210, or on the pipeline of condensation water heater 240, or the pipeline in waste heat boiler 210 is provided with the first pump mouth, and second pump mouth, from the pipeline of condensation water heater 240 to waste heat boiler 210, or on the pipeline of condensation water heater 240, or the pipeline in waste heat boiler 210 is provided with the first water supplement port, and second water supplement port；Air preheater 310 has the first heat exchanger channels and the second heat exchanger channels that cooperate；Fuel preheater 410 has the 3rd heat exchanger channels and the 4th heat exchanger channels that match；Wherein, residual heat flue 211 docks with the exhanst gas outlet of gas turbine 100, the import of the first heat exchanger channels is docked with the first pump mouth, the outlet of the first heat exchanger channels is docked with the first water supplement port, the import of the second heat exchanger channels is docked with air source, and the outlet of the second heat exchanger channels is docked with the air intlet of gas turbine 100；The import of the 3rd heat exchanger channels, outlet are docked with the second pump mouth, the second water supplement port respectively, and the import of the 4th heat exchanger channels is docked with fuel gas source, and the outlet of the 4th heat exchanger channels is docked with the fuel inlet of gas turbine 100.
Preferably, being provided with condensate pump 231 in the downstream of condenser 230, condensate pump 231 is between condenser 230 and condensation water heater 240, and described first water supplement port and described second water supplement port are located between condensate pump 231 and condensation water heater 240.
Part feedwater through condensation water heater 240 heating respectively enters air preheater 310 and fuel preheater 410, and the air preheater 310 air preheat to entering gas turbine 100 makes air themperature raise；The fuel preheater 410 fuel preheating to entering gas turbine 100, fuel temperature is made to raise, air and fuel after intensification enter gas turbine 100 work by combustion, air and fuel combustion after intensification are more stable, and the delivery temperature of gas turbine 100 is higher, now increase the feedwater flow of steam circuit so that it is obtain bigger quantity of steam with the flue gas heat exchange of the higher temperature of gas turbine 100 discharge, make the steam of greater flow enter steam turbine 220 and do work.Steam now maintains original steam pressure and temperature waits steam operational factor constant substantially, and these more steam enters steam turbine 220 acting and obtains bigger exerting oneself, and improves the efficiency of whole combustion and steam association system.And, condensation water heater 240 is installed in residual heat flue 211, owing to from condensation water heater 240, extracting part gives water entrance air preheater 310, in condensation water heater 240, the flow of feedwater increases relative to the steam circuit feedwater flow being not provided with air preheater 310, so that condensation water heater 240 increases with the heat of flue gas exchange in residual heat flue 211, the exhaust temperature of flue gas reduces, and improves the thermal efficiency of whole combustion and steam circulation.On the other hand, air preheater 310 does not change the steam operational factor of steam circuit, it is not necessary to adopt the better material of heat resisting and pressure resisting, avoids being greatly improved the cost of whole system while improving the thermal efficiency.
Flow valve 320 it is provided with between first pump mouth and air preheater 310.Regulating flow valve 320 and can control the feedwater flow on air preheater 310, thus regulating the heat exchange amount of air preheater 310 air and feedwater, and then regulating the temperature of the air entering gas turbine 100.Second pump mouth and fuel preheater 410 are provided with adjustment valve 420.Regulating valve 420 and can control the feedwater flow of fuel preheater 410, thus regulating the heat exchange amount of fuel and feedwater in fuel preheater 410, and then regulating the temperature of the fuel entering gas turbine 100.As required, it is possible to be separately provided flow valve 320 or regulate valve 420, it is also possible to arrange flow valve 320 simultaneously and regulate valve 420, and combine regulating flow valve 320 and regulate valve 420, so that the temperature of the fuel and air entering gas turbine 100 is in efficiency optimization value.
The air intlet of gas turbine 100 is provided with temperature sensor；Or/and, the fuel inlet of gas turbine 100 is provided with temperature sensor.In the present embodiment, the air intlet of gas turbine 100, fuel inlet are equipped with temperature sensor, but are not limited to this, as required, it is possible to individually arrange temperature sensor in air intlet or the fuel inlet of gas turbine 100.Combustion and steam association system also has controller, it is arranged at the air intlet of gas turbine 100, the temperature sensor of fuel inlet, flow valve 320 and adjustment valve 420 to be all electrically connected with controller, controller enters the fuel temperature of gas turbine 100, air themperature according to what temperature sensor detected, regulate flow valve 320, regulate valve 420, control to enter the feedwater flow of air preheater 310 from the first pump mouth, enter the feedwater flow of fuel preheater 410 from the second pump mouth, thus controlling the air themperature, the fuel temperature that enter in gas turbine 100.Enter the temperature of fuel of gas turbine 100, air temperature by the impact of ambient temperature, change with the change of ambient temperature, using enter the temperature of fuel of gas turbine 100, air temperature as control signal: when temperature sensor detects the air temperature value of gas turbine 100 air intlet more than setting value, controller controls flow valve 320 and reduces the feedwater flow entering air preheater 310, namely minimizing and air carry out the feedwater flow of heat exchange, the heat that air obtains is made to reduce, thus reducing air to enter the temperature of gas turbine 100；Otherwise, when temperature sensor detects the air temperature value of gas turbine 100 air intlet less than setting value, controller controls flow valve 320 and increases the feedwater flow entering air preheater 310, namely increase and air carry out the feedwater flow of heat exchange, the heat that air obtains is made to increase, thus improving air to enter the temperature of gas turbine 100；So repeatedly regulate, finally make the air temperature value of gas turbine 100 air intlet reach the set temperature value that Theoretical Calculation makes combustion and steam association system most effective；When temperature sensor detects the Fuel Temperature values of gas turbine 100 fuel inlet more than setting value, controller control and regulation valve 420 reduces the feedwater flow entering fuel preheater 410, namely minimizing and fuel carry out the feedwater flow of heat exchange, the heat that fuel obtains is made to reduce, thus reducing fuel to enter the temperature of gas turbine 100；Otherwise, when temperature sensor detects the Fuel Temperature values of gas turbine 100 fuel inlet less than setting value, controller control and regulation valve 420 increases the feedwater flow entering fuel preheater 410, namely increase and fuel carry out the feedwater flow of heat exchange, the heat that fuel obtains is made to increase, thus improving fuel to enter the temperature of gas turbine 100；So repeatedly regulate, finally make the Fuel Temperature values of gas turbine 100 fuel inlet reach the set temperature value that Theoretical Calculation makes combustion and steam association system most effective.Combine conciliation flow valve 320, regulate valve 420, reconcile and enter the fuel temperature of gas turbine 100, air themperature, Combined cycle gas-steam turbine unit is made to obtain optimum efficiency, Combined cycle gas-steam turbine unit is under any season any operating mode, can both run with optimum state, do not affected by extraneous objective factor.
On flow of flue gas direction in residual heat flue 211, condensation water heater 240 is the most end first-class heat exchanger in residual heat flue 211.It it is 70 DEG C to 90 DEG C from the temperature of the feedwater of the first pump mouth entrance air preheater 310, it is preferred that be 80 DEG C or 85 DEG C；Or, it is 70 DEG C to 90 DEG C from the temperature of the feedwater of the second pump mouth entrance fuel preheater 410, it is preferred that be 80 DEG C or 85 DEG C.Make full use of the steady energy in the ground of flue gas in residual heat flue 211, thus improving the thermal efficiency of combustion and steam association system.Further, steam circuit utilizes high-grade energy, it is to avoid the steam parameter of steam circuit is produced impact.
Combustion and steam association system progress control method, including:
A, fuel and air enter work by combustion in gas turbine 100, flue gas after acting enters the residual heat flue 211 of waste heat boiler 210, and the feedwater of steam circuit is heated, feedwater after heating becomes steam entrance steam turbine 220 and does work, feedwater (now becoming vapor phase) after acting sequentially passes through condenser 230 and condensation water heater 240 is back to waste heat boiler 210, and wherein the feedwater of vapor phase is condensed into liquid in condenser 230；
Give in the first heat exchanger channels that water enters air preheater 310 from the first pump mouth in the middle part of condensation water heater 240, air in second heat exchanger channels of air heat exchanger 310 is preheated, air is warmed, to water for cooling, air after intensification enters gas turbine 100 and burns, and the feedwater after cooling is back to condensation water heater 240 from the first water supplement port；
Give in the 3rd heat exchanger channels that water enters fuel preheater 410 from the second pump mouth in the middle part of condensation water heater 240, fuel in 4th heat exchanger channels of fuel heat exchangers 410 is preheated, fuel is warmed, to water for cooling, fuel after intensification enters gas turbine 100 and burns, and the feedwater after cooling is back to condensation water heater 240 from the second water supplement port.
B, the gas turbine 100 air intake place air detected according to temperature sensor temperature, regulate flow valve 320, control to enter from the first pump mouth the feedwater flow of air preheater 310, thus controlling to enter the temperature of air of gas turbine 100；Or, the temperature according to the gas turbine 100 fuel inlet place fuel that temperature sensor detects, regulate valve 420, control to enter from the second pump mouth the feedwater flow of fuel preheater 410, thus controlling to enter the temperature of the fuel of gas turbine 100；Or the temperature of the temperature of gas turbine 100 air intake place air detected according to temperature sensor, fuel inlet place fuel, regulates flow valve 320 and regulates valve 420, to obtain optimum efficiency simultaneously.
Embodiment two
Embodiment two and embodiment one are distinctive in that:
As in figure 2 it is shown, combustion and steam association system, including: Gas Generator Set, steam circuit, warm-up cycle loop, Gas Generator Set includes gas turbine 100；Steam circuit is provided with in waste heat boiler 210, steam turbine 220, waste heat boiler 210 and is provided with residual heat flue 211, warm-up cycle loop is provided with afterheat heat exchanger 300, air preheater 310 and fuel preheater 410, air preheater 310 has the first heat exchanger channels and the second heat exchanger channels that cooperate, and fuel preheater 410 has the 3rd heat exchanger channels and the 4th heat exchanger channels that match；Wherein, residual heat flue 211 docks with the exhanst gas outlet of gas turbine 100, first heat exchanger channels, the 3rd heat exchanger channels dock with afterheat heat exchanger 300 respectively, and the second heat exchanger channels docks with the air intlet of gas turbine 100, and the 4th heat exchanger channels docks with the fuel inlet of gas turbine 100.
Cycle fluid through afterheat heat exchanger 300 heating respectively enters air preheater 310 and fuel preheater 410, the air preheater 310 air preheat to entering gas turbine 100, makes air themperature raise；The fuel preheater 410 fuel preheating to entering gas turbine 100, makes fuel temperature raise.Connecting with afterheat heat exchanger 300 after air preheater 310 and fuel preheater 410 parallel connection, constitute two circulations closed, it does not have loss of steam and water, efficiency is high.
Steam circuit is additionally provided with at least one-level steam circulation heat exchanger, steam circulation heat exchanger is installed in residual heat flue 211, on flow of flue gas direction in residual heat flue 211, afterheat heat exchanger 300 is positioned at the downstream of most end one-level steam circulation heat exchanger, in the present embodiment, most end one-level steam circulation heat exchanger is condensation water heater 240, and afterheat heat exchanger 300 is positioned at the downstream condensing water-to-water heat exchanger.
Each technical characteristic of above example can combine arbitrarily, for making description succinct, all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics is absent from contradiction, all it is considered to be the scope that this specification is recorded.
Above example only have expressed several embodiments of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (8)
1. a combustion and steam association system, it is characterised in that including:
Gas Generator Set, described Gas Generator Set includes gas turbine；
Steam circuit, described steam circuit is provided with waste heat boiler, steam turbine, condenser, and condensation water heater, it is provided with residual heat flue in described waste heat boiler, condensation water heater is installed in described residual heat flue, from described condensation water heater to the pipeline of described waste heat boiler, or on the pipeline of described condensation water heater, or the pipeline in described waste heat boiler is provided with the first pump mouth, and second pump mouth, from described condenser to the pipeline of described condensation water heater, or the pipeline of described condensation water heater is provided with the first water supplement port, and second water supplement port；
Air preheater, described air preheater has the first heat exchanger channels and the second heat exchanger channels that cooperate；
Fuel preheater, described fuel preheater has the 3rd heat exchanger channels and the 4th heat exchanger channels that match；
Wherein, described residual heat flue docks with the exhanst gas outlet of described gas turbine, the import of described first heat exchanger channels is docked with described first pump mouth, the outlet of described first heat exchanger channels is docked with described first water supplement port, the import of described second heat exchanger channels is docked with air source, and the outlet of described second heat exchanger channels is docked with the air intlet of described gas turbine；
The import of described 3rd heat exchanger channels, outlet are docked with described second pump mouth, described second water supplement port respectively, and the import of described 4th heat exchanger channels is docked with fuel gas source, and the outlet of described 4th heat exchanger channels is docked with the fuel inlet of described gas turbine.
2. combustion and steam association system according to claim 1, it is characterised in that be provided with flow valve between described condensation water heater and described air preheater.
3. combustion and steam association system according to claim 1, it is characterised in that be provided with adjustment valve between described condensation water heater and described fuel preheater.
4. combustion and steam association system according to claim 1, it is characterised in that the air intlet of described gas turbine is provided with temperature sensor；Or/and, the fuel inlet of described gas turbine is provided with temperature sensor.
5. combustion and steam association system according to claim 1, it is characterised in that on the flow of flue gas direction in described residual heat flue, described condensation water heater is the most end first-class heat exchanger in described residual heat flue.
6. the combustion and steam association system according to any one of claim 1 to 5, it is characterised in that the temperature of feedwater entering described air preheater from described first pump mouth is 70 DEG C to 90 DEG C；Or, it is 70 DEG C to 90 DEG C from the temperature of the feedwater of the described second pump mouth described fuel preheater of entrance.
7. a combustion and steam association system, it is characterised in that including:
Gas Generator Set, described Gas Generator Set includes gas turbine；
Steam circuit, described steam circuit is provided with in waste heat boiler, steam turbine, described waste heat boiler and is provided with residual heat flue；
Afterheat heat exchanger, air preheater and fuel preheater, described air preheater has the first heat exchanger channels and the second heat exchanger channels that cooperate, and described fuel preheater has the 3rd heat exchanger channels and the 4th heat exchanger channels that match；
Wherein, described residual heat flue docks with the exhanst gas outlet of described gas turbine, described afterheat heat exchanger is installed in described residual heat flue, described first heat exchanger channels, described 3rd heat exchanger channels dock with described afterheat heat exchanger respectively, described second heat exchanger channels docks with the air intlet of described gas turbine, and described 4th heat exchanger channels docks with the fuel inlet of described gas turbine.
8. combustion and steam association system according to claim 7, it is characterized in that, described steam circuit is additionally provided with at least one-level steam circulation heat exchanger, described steam circulation heat exchanger is installed in described residual heat flue, on flow of flue gas direction in described residual heat flue, described afterheat heat exchanger is positioned at the downstream of steam circulation heat exchanger described in most end one-level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521144797.9U CN205349534U (en) | 2015-12-31 | 2015-12-31 | Gas steam combination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521144797.9U CN205349534U (en) | 2015-12-31 | 2015-12-31 | Gas steam combination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205349534U true CN205349534U (en) | 2016-06-29 |
Family
ID=56173630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521144797.9U Active CN205349534U (en) | 2015-12-31 | 2015-12-31 | Gas steam combination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205349534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442294A (en) * | 2020-04-15 | 2020-07-24 | 哈尔滨锅炉厂有限责任公司 | Boiler and steam turbine coupling thermodynamic system for improving efficiency of gas turbine unit |
-
2015
- 2015-12-31 CN CN201521144797.9U patent/CN205349534U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442294A (en) * | 2020-04-15 | 2020-07-24 | 哈尔滨锅炉厂有限责任公司 | Boiler and steam turbine coupling thermodynamic system for improving efficiency of gas turbine unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108548168A (en) | A kind of thermal power plant's fused salt accumulation of heat peak regulation system heated using main steam | |
| CN101900347B (en) | System for high-grade recycling waste heat of smoke discharged from boiler of power station | |
| CN106090880A (en) | A kind of machine stove set heat circulation afterheat recycling system | |
| CN106499455A (en) | Combined-cycle power plant's soda pop backheat and fuel heating integrated put forward effect system | |
| CN206972383U (en) | A kind of heated by natural gas system for Combined cycle gas-steam turbine | |
| CN207813667U (en) | Low pressure cylinder cooling system based on different steam ports | |
| CN107859538A (en) | It is a kind of to be used for the solidifying co-generation unit and its operation method for taking out back of the body heat supply | |
| CN105484815B (en) | Combustion and steam association system and its progress control method | |
| CN207813675U (en) | A kind of co-generation unit for carrying on the back heat supply for solidifying pumping | |
| CN102997309A (en) | Classification heating system with high-temperature heat source heater bypass pipe | |
| CN105464808B (en) | Combustion and steam association system and its progress control method | |
| CN106523052A (en) | Combined-cycle power plant steam water back-heating and waste heat comprehensive utilization efficiency-improving system | |
| CN105464731B (en) | Combustion and steam association system and its progress control method | |
| CN207813676U (en) | It is a kind of to improve the solidifying back of the body of taking out for thermally safe co-generation unit | |
| CN105484816B (en) | Combustion and steam association system and its progress control method | |
| CN105464810B (en) | Combustion and steam association system and its progress control method | |
| CN205349442U (en) | Gas steam combination system | |
| CN205349534U (en) | Gas steam combination system | |
| CN102494329B (en) | Device for utilizing flue gas waste heat of boiler comprehensively | |
| CN205349531U (en) | Gas steam combination system | |
| CN208222561U (en) | A kind of heat supply network is hydrophobic with steam air heater UTILIZATION OF VESIDUAL HEAT IN energy conserving system | |
| CN206319918U (en) | Combined-cycle power plant's carbonated drink backheat and residual heat integrative, which are utilized, puies forward effect system | |
| CN205349533U (en) | Gas steam combination system | |
| CN205445803U (en) | Gas steam combination system | |
| CN205316371U (en) | Combine waste heat utilization's powder process to transfer wind system all |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |