CN108757070A - A kind of ammonia water mixture power cycle generating system and control method for coordinating - Google Patents

A kind of ammonia water mixture power cycle generating system and control method for coordinating Download PDF

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Publication number
CN108757070A
CN108757070A CN201810461916.5A CN201810461916A CN108757070A CN 108757070 A CN108757070 A CN 108757070A CN 201810461916 A CN201810461916 A CN 201810461916A CN 108757070 A CN108757070 A CN 108757070A
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turbine
heat source
regulating valve
pressure
rotating speed
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CN108757070B (en
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王江峰
程梓洋
赵攀
戴义平
王亚雄
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Xian Jiaotong University
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Xian Jiaotong University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • F01K25/106Ammonia
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10Adaptations for driving, or combinations with, electric generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00Regulating or controlling by varying flow
    • F01D17/10Final actuators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00General layout or general methods of operation of complete plants
    • F01K13/02Controlling, e.g. stopping or starting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K27/00Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F01K27/02Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat

Abstract

The invention discloses a kind of ammonia water mixture power cycle generating system and control method for coordinating, first heat source regulating valve and Secondary Heat Source regulating valve are connect with heat source pump or industrial exhaust heat respectively, the re-injection after the first heat source regulating valve of GEOTHERMAL WATER or industrial exhaust heat, Secondary Heat Source regulating valve connects evaporimeter thermal source end, the re-injection after the heat source side of evaporator of GEOTHERMAL WATER or industrial exhaust heat forms heat source side access;Evaporator is connected through the entrance of pressure measurement transmitter, regulating valve and turbine and mixer all the way after separator, and another way is connected through the entrance of high temperature regenerator and throttle valve and mixer;Mixer outlet is connect after cryogenic regenerator and condenser with working medium pump intake, and working medium pump discharge connect to form working medium side circulation path with evaporator through cryogenic regenerator, high temperature regenerator.The present invention advantageously reduces the production cost of system, operating cost, and promote contributes to energy-saving and emission-reduction using the ammonia water mixture circulatory system of waste heat or regenerative resource, improves energy utilization rate.

Description

A kind of ammonia water mixture power cycle generating system and control method for coordinating
Technical field
The invention belongs to low-grade heat source, industrial afterheat recoveries to utilize, control and power engineering technology field are coordinated in power generation, More particularly to a kind of ammonia water mixture power cycle generating system and control method for coordinating.
Background technology
In terms of ammonia water mixture power cycle generating system, the prior art is primarily upon to thermal performance, economy Etc. optimization design and the safe and stable, economical operation of total system be unable to do without coordinated control system, coordinated control system Control method for coordinating is needed to design, but is showed no the coordination control of ammonia water mixture power cycle generating system both at home and abroad at present Method processed discloses.
Ammonia water mixture power cycle using ammonia water mixture two-phase section temperature glide characteristic, obtain heat source and The good thermal matching of working medium so that the performance of thermodynamic cycle significantly improves.The cycle realizes that low-grade heat source is efficiently converted, because And it is widely used in geothermal power generation, industrial afterheat recovery, solar generator, afterheat of IC engine utilization, ship power etc.. Geothermal energy, solar energy, biomass energy etc., fuel cell cogeneration, turbine exhaust waste-heat power generation, cement kiln waste-heat power generation, refining Steel stove waste-heat power generation etc..But the coordination control of still planless ammonia water mixture power cycle generating system both at home and abroad at present Method processed.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of ammonium hydroxide mixing Working medium power cycle generating system and control method for coordinating help to ensure that safe and stable, the Effec-tive Function of system, popularization carry High China's efficiency of energy utilization reduces dependence of the energy industry to fossil energy, meets the fundamental state policy of China's energy-saving and emission-reduction, Be conducive to China in the top standard that goes to the world using regenerative resource and in terms of recycling industrial waste heat.
The present invention uses following technical scheme:
A kind of ammonia water mixture power cycle generating system, including the first heat source regulating valve, Secondary Heat Source regulating valve and Heat source side access, the first heat source regulating valve and Secondary Heat Source regulating valve are connect with heat source pump or industrial exhaust heat respectively, heat source pump The re-injection after the first heat source regulating valve of GEOTHERMAL WATER or industrial exhaust heat, Secondary Heat Source regulating valve connect the heat source side of evaporator, underground heat The re-injection after the heat source side of evaporator of water or industrial exhaust heat forms heat source side access;
Evaporator divides two-way after separator, all the way successively through pressure measurement transmitter, regulating valve and turbine and mixer Entrance connection, another way successively through the entrance of high temperature regenerator and throttle valve and mixer connect;The outlet of mixer is successively It is connect with working medium pump intake after cryogenic regenerator and condenser, working medium pump discharge is successively through cryogenic regenerator, high temperature regenerator It connect to form working medium side circulation path with evaporator, turbine coaxially connected generator is provided with rotating speed between turbine and generator Measuring transducer;
Heat source pump, the first heat source regulating valve, Secondary Heat Source regulating valve, pressure measurement transmitter, regulating valve and tachometric survey Transmitter connects and composes the control system of cycle generating system with controller respectively.
A kind of control method for coordinating of ammonia water mixture power cycle generating system, using flow-rate adjustment method, pressure tune Section method, rotating speed pressure adjust method or grid-connected pressure adjusts method and the power cycle generating system for being provided with separator is adjusted, So that turbine inlet pressure is remained unchanged by adjusting the rotating speed of heat source pump and the aperture of regulating valve respectively, realizes to adjustable heat source Coordination control;Aperture by adjusting regulating valve, the first heat source regulating valve and Secondary Heat Source regulating valve makes turbine inlet pressure It remains unchanged, realizes that the coordination to non-adjustable heat source controls.
Specifically, carrying out coordinating to control to adjustable heat source using flow-rate adjustment method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed rises, and controller reduces the aperture of regulating valve, and turbine active torque is less than the electromagnetic resistance square of generator, turbine power generation unit Rotating speed declines, and the rotating speed decline of controller control heat source pump makes the rich ammonia steam outlet pressure of separator decline, final so that saturating Flat inlet pressure remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed declines, and controller increases the aperture of regulating valve, and turbine active torque is more than the electromagnetic resistance square of generator, turbine power generation unit Rotating speed rises, and the rotating speed rising of controller control heat source pump makes the rich ammonia steam outlet pressure of separator rise, final so that saturating Flat inlet pressure remains unchanged.
Specifically, carrying out coordinating to control to adjustable heat source using pressure adjusting method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed rises, and the rotating speed that controller improves heat source pump makes evaporator exit pressure decline, and controller reduces the aperture of regulating valve, turbine Active torque reduces, and turbine speed remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed declines, and the rotating speed that controller improves heat source pump makes evaporator exit pressure rise, and controller increases the aperture of regulating valve, turbine Active torque increases, and turbine speed remains unchanged.
Specifically, carrying out coordinating to control to adjustable heat source using rotating speed pressure adjusting method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed rises, and is higher than rated speed, and controller reduces the aperture of regulating valve, and reduces the rotating speed of heat source pump, and turbine active torque is small In the electromagnetic resistance square of generator, turbine power generation unit rotating speed declines, and the rich ammonia vapor outlet port pressure of separator declines, and finally makes Turbine inlet pressure is obtained to remain unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed declines, and is less than rated speed, and controller increases the aperture of regulating valve, and increases the rotating speed of heat source pump, and turbine active torque is big In the electromagnetic resistance square of generator, turbine power generation unit rotating speed rises, and the rich ammonia vapor outlet port pressure of separator rises, and finally makes Turbine inlet pressure is obtained to remain unchanged.
Specifically, carrying out coordinating to control to non-adjustable heat source using flow-rate adjustment method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed rises, and is higher than rated speed, and controller reduces the aperture of regulating valve, and turbine active torque is less than the electromagnetic resistance of generator Square, turbine power generation unit rotating speed decline, and the rich ammonia steam outlet pressure of separator increases, and are higher than rated pressure, and controller increases The aperture of first heat source regulating valve, while reducing Secondary Heat Source control valve opening, the rich ammonia steam outlet pressure of separator declines, Finally so that turbine inlet pressure remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, turbine power generation unit Rotating speed declines, and is less than rated speed, and controller increases the aperture of regulating valve, and turbine active torque is more than the electromagnetic resistance of generator Square, turbine power generation unit rotating speed rise, and the rich ammonia steam outlet pressure of separator reduces, and are less than rated pressure, and controller reduces The aperture of first heat source regulating valve, while increasing the aperture of Secondary Heat Source regulating valve, on the rich ammonia steam outlet pressure of separator It rises, it is final so that the inlet pressure of turbine remains unchanged.
Specifically, carrying out coordinating to control to non-adjustable heat source using pressure adjusting method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed rises, and is higher than rated speed, and controller increases the aperture of the first heat source regulating valve, while reducing opening for Secondary Heat Source regulating valve Degree, evaporator exit pressure decline, and controller reduces the aperture of regulating valve, and turbine inlet flow rate reduces, and turbine active torque subtracts It is small, it is final so that the rotating speed of turbine remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed declines, and is less than rated speed, and controller reduces the first heat source control valve opening, while increasing Secondary Heat Source control valve opening, Evaporator exit pressure rises, and controller increases the aperture of regulating valve, and turbine inlet flow rate increases, and turbine active torque increases, It is final that the rotating speed of turbine is remained unchanged.
Specifically, carrying out coordinating to control to non-adjustable heat source using rotating speed pressure adjusting method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed rises, and is higher than rated speed, controller reduces the aperture of regulating valve, while increasing the aperture of the first heat source regulating valve, reduces The aperture of Secondary Heat Source regulating valve, turbine active torque are less than the electromagnetic resistance square of generator, and turbine power generation unit rotating speed declines, The rich ammonia vapor outlet port pressure of separator declines, finally so that turbine inlet pressure remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed declines, and is less than rated speed, controller increases control valve opening, while reducing the aperture of the first heat source regulating valve, increases the The aperture of two heat source regulating valves, turbine active torque are more than the electromagnetic resistance square of generator, and turbine power generation unit rotating speed rises, point Rich ammonia vapor outlet port pressure from device rises, finally so that turbine inlet pressure remains unchanged.
Specifically, after grid-connected, rotating speed is completely closed by power grid control, the first heat source regulating valve, and Secondary Heat Source regulating valve is complete It is complete to open, non-adjustable heat source is carried out coordinating to control using grid-connected pressure adjusting method specific as follows:
If heat source flow increases, evaporator heat exchange amount increases, and evaporator exit pressure rises, and the rich ammonia steam of separator goes out Mouth pressure rises, and controller increases the inlet flow rate of the aperture increase turbine of regulating valve, the rich ammonia steam outlet pressure of separator Decline, final turbine inlet pressure remains unchanged;
If heat source flow reduces, evaporator heat exchange amount reduces, and the outlet pressure of evaporator reduces, the rich ammonia steam of separator Outlet pressure reduces, and controller reduces the inlet flow rate of the aperture reduction turbine of regulating valve, the rich ammonia steam outlet pressure of separator Power rises, finally so that turbine inlet pressure remains unchanged.
Compared with prior art, the present invention at least has the advantages that:
A kind of ammonia water mixture power cycle generating system of the present invention, the first heat source regulating valve and Secondary Heat Source regulating valve It is connect respectively with heat source pump or industrial exhaust heat, GEOTHERMAL WATER or the industrial exhaust heat re-injection after the first heat source regulating valve of heat source pump, the Two heat source regulating valves connect the heat source side of evaporator, and the re-injection after the heat source side of evaporator of GEOTHERMAL WATER or industrial exhaust heat forms heat Pressure measurement transmitter is arranged between separator and turbine, and regulating valve is arranged in pressure measurement transmitter for source access Between turbine, when controller, which instructs, reduces control valve opening, pipe resistance characteristic increases, evaporator outlet to regulating valve Pressure rises, and pressure rising causes ammonia water mixture evaporating temperature to rise, and when heat source flow changes smaller, heat exchange amount is basic It is constant, as a result evaporation capacity is caused to reduce, evaporator outlet working medium mass dryness fraction declines;Evaporation capacity reduction causes evaporator outlet to adjusting Valve inlet pressure declines, and there is evaporator pressure Replacement effect, the decline of evaporator outlet working medium mass dryness fraction to lead to separator inlet vapor State working medium is reduced, and separator rich ammonia steam rate of discharge declines, and reduces separator outlet to regulating valve inlet pressure, separator There is pressure Replacement effect, working medium pressure after by throttle valve to decline, and evaporating temperature declines, but steam state is still steam state, Flow will not change, and two kinds of Replacement effects are effective;Both Replacement effects all improve the adaptive ability of system, are conducive to It is balanced with quick regulating system, is conducive to the safety and stability economical operation of system;When controller, which instructs, increases control valve opening, Pipe resistance characteristic reduces, and the pressure of evaporator outlet to regulating valve declines, and pressure decline leads to ammonia water mixture evaporation temperature Degree declines, and when heat source flow changes smaller, heat exchange amount is basically unchanged, and as a result evaporation capacity is caused to rise, evaporator outlet working medium Mass dryness fraction rises;Evaporation capacity rising causes evaporator outlet to regulating valve inlet pressure to rise, and has evaporator pressure Replacement effect, The rising of evaporator outlet working medium mass dryness fraction causes separator import steam state working medium to rise, and separator rich ammonia steam rate of discharge rises, Separator outlet is improved to regulating valve inlet pressure, the Replacement effect with separator pressure, working medium by throttle valve it Pressure rises afterwards, and evaporating temperature rises, and flow reduces, and evaporator pressure is compensatory compensatory effective with partial separator pressure, this Two kinds of Replacement effects all improve the adaptive ability of system, are conducive to balance with quick regulating system, are conducive to the peace of system Full operation of stabilizing the economy.
A kind of control method for coordinating of ammonia water mixture power cycle generating system of the present invention, using flow-rate adjustment method, Pressure adjusts method, rotating speed pressure adjusts method or grid-connected pressure adjusts method, by the rotating speed and regulating valve that adjust heat source pump respectively Aperture so that turbine inlet pressure is remained unchanged, realize and the coordination of adjustable heat source controlled;By adjusting regulating valve, the first heat source The aperture of regulating valve and Secondary Heat Source regulating valve makes turbine inlet pressure remain unchanged, and realizes the coordination control to non-adjustable heat source System, controller can comprehensively be met the control needs of entire electricity generation system by measure and control device, need not be examined after debugging It repaiies personnel on site to check, all information can be transported to the monitoring computer of master control room with via controller, reduce economic cost, association Regulation and control system is automatically completed by underlying device, and real time response speed is done, and is not limited by communicating interrupt, and system is improved Reliability is conducive to the stabilization, safety, economical operation of system.
Further, flow-rate adjustment method can utilize the storage capacity of evaporator, fast in the case where pressure change is little Velocity modulation section rotating speed can be adjusted system when grid-connected front and back and grid-connected, the exploitation to the adjustable heat source of such as GEOTHERMAL WATER Using significant.
Further, pressure, which adjusts method, can make system reach new balance faster, can be grid-connected front and back and grid-connected When system is adjusted, it is significant to the utilization of the adjustable heat source of such as GEOTHERMAL WATER.
Further, rotating speed-pressure adjusts method and combines flow-rate adjustment method and pressure adjusting method, and the storage of evaporator is utilized It deposits ability and system can be made to rapidly reach new equilibrium state, system can be adjusted when grid-connected front and back and grid-connected, It is significant to the utilization of the adjustable heat source of such as GEOTHERMAL WATER.
Further, flow-rate adjustment method can utilize the storage capacity of evaporator, fast in the case where pressure change is little Velocity modulation section rotating speed can be adjusted system after grid-connected preceding and removal of load, to the non-adjustable heat source of such as industrial exhaust heat It develops and uses significant.
Further, pressure, which adjusts method, can make system reach new balance faster, can be grid-connected front and back and grid-connected When system is adjusted, system can be adjusted after grid-connected preceding and removal of load, to the non-adjustable of such as industrial exhaust heat The utilization of heat source are significant.
Further, rotating speed-pressure adjusts method and combines flow-rate adjustment method and pressure adjusting method, and the storage of evaporator is utilized It deposits ability and system can be made to rapidly reach new equilibrium state, system can be adjusted after grid-connected preceding and removal of load, It is significant to the utilization of the non-adjustable heat source of such as industrial exhaust heat.
Further, grid-connected pressure, which adjusts method, can make full use of heat source, system can be adjusted when grid-connected, to example Utilization such as the non-adjustable heat source of industrial exhaust heat are significant.
In conclusion the present invention advantageously reduces the production cost of system, operating cost, and popularization uses waste heat or can be again The ammonia water mixture circulatory system of the raw energy contributes to energy-saving and emission-reduction, improves energy utilization rate.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Fig. 1 is connection diagram of the present invention using the ammonia water mixture power cycle generating system of adjustable heat source;
Fig. 2 is connection diagram of the present invention using the ammonia water mixture power cycle generating system of non-adjustable heat source.
Wherein:1. heat source pumps;2. the first heat source regulating valve;3. Secondary Heat Source regulating valve;4. evaporator;5. separator;6. Pressure measurement transmitter;7. regulating valve;8. controller;9. turbine;10. tachometric survey transmitter;11. generator;12. throttling Valve;13. mixer;14. cryogenic regenerator;15. condenser;16. working medium pump;17. high temperature regenerator.
Specific implementation mode
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot It is interpreted as indicating or implies relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " the One ", the feature of " second " can explicitly or implicitly include one or more this feature.In the description of the present invention, Unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can Can also be electrical connection to be mechanical connection;It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.
In low-grade heat source efficiently utilizes field, heat source can be divided into two kinds:It can one is flow, temperature single parameter The heat source that tune or flow temperature can be adjusted, referred to as adjustable heat source, such as GEOTHERMAL WATER;Another kind is that flow, temperature can not With the heat source of adjusting, referred to as non-adjustable heat source, such as industrial waste heat.
The present invention provides a kind of ammonia water mixture power cycle generating system control method for coordinating, for adjustable heat source It generates electricity and generates electricity by way of merging two or more grid systems and propose four kinds of control method for coordinating with single machine of the non-adjustable heat source by taking industrial waste heat as an example by taking underground heat as an example, Flow-rate adjustment method, pressure applied to adjustable heat source adjust method, rotating speed pressure adjusting method and applied to the single machines of non-adjustable heat source Flow-rate adjustment method, single machine pressure adjust method, single machine rotational speed regulation method and grid-connected pressure and adjust method.
Guarantee is provided for safe and stable, the economical operation of ammonia water mixture power cycle generating system, is conducive to push away Into Waste Heat Recovery, renewable energy utilization, energy utilization rate is improved, the fundamental state policy of energy-saving and emission-reduction is met.
Referring to Fig. 1, including heat source pump 1, first using the ammonia water mixture power cycle generating system of adjustable heat source Heat source regulating valve 2, Secondary Heat Source regulating valve 3, evaporator 4, separator 5, pressure measurement transmitter 6, regulating valve 7, controller 8, Turbine 9, tachometric survey transmitter 10, generator 11, throttle valve 12, mixer 13, cryogenic regenerator 14, condenser 15, working medium Pump 16 and high temperature regenerator 17.
Heat source pump 1 is separately connected the first heat source regulating valve 2 and Secondary Heat Source regulating valve 3, and GEOTHERMAL WATER is adjusted through the first heat source Re-injection after valve 2, Secondary Heat Source regulating valve 3 connect the heat source side of evaporator 4, and GEOTHERMAL WATER re-injection behind evaporimeter thermal source end is formed Heat source side access;Evaporator 4 divides two-way through separator 5, all the way through pressure measurement transmitter 6, regulating valve 7 and turbine 9 with mix The entrance of device 13 connects, and another way is connect through high temperature regenerator 17 and throttle valve 12 with the entrance of mixer 13;Mixer 13 Outlet connect with 16 entrance of working medium pump after cryogenic regenerator 14 and condenser 15, working medium pump 16 export through cryogenic regenerator 14, High temperature regenerator 17 is connect with evaporator 4, forms working medium side circulation path, 9 coaxially connected generator 11 of turbine, turbine 9 and hair Tachometric survey transmitter 10 is provided between motor 11.
Heat source pumps the 1, first heat source regulating valve 2, Secondary Heat Source regulating valve 3, pressure measurement transmitter 6, regulating valve 7 and rotating speed Measuring transducer 10 connects and composes control system with controller 8 respectively, passes through heat source pump the 2, second heat of the 1, first heat source regulating valve Source regulating valve 3, pressure measurement transmitter 6, regulating valve 7, tachometric survey transmitter 10, which are realized, coordinates control.
Adjustable heat source ammonia water mixture power cycle generating system control method for coordinating, including single machine flow-rate adjustment method, Single machine pressure adjusts method, single machine rotating speed pressure adjusts method and grid-connected pressure adjusts method.
1, single machine flow-rate adjustment method
If extraneous power load declines, the active torque of turbine 9 is more than the electromagnetic resistance square of generator 11, turbine power generation Generating unit speed rises, and is higher than rated speed, and the tach signal of measurement is input to controller 8 by tachometric survey transmitter 10, controls Device 8 exports the aperture that control instruction reduces regulating valve 7, and the inlet flow rate of turbine 9 decreases, and the active torque of turbine 9 is less than The electromagnetic resistance square of generator 11, turbine power generation unit rotating speed decline.
Since the aperture of regulating valve 7 reduces, and heat source is constant, and the heat exchange amount of evaporator 4 is constant, 4 rate of discharge of evaporator Constant, the reduction of 7 aperture of regulating valve causes pipe resistance characteristic to increase, and the outlet pressure of evaporator 4 rises, and the rich ammonia of separator 5 steams Vapor outlet pressure increases, and is higher than rated pressure, and the pressure signal of measurement is input to controller 8 by pressure measurement transmitter 6, controls The output control signal of device 8, the rotating speed of control heat source pump 1 make the rotating speed of heat source pump 1 decline, heat source flow reduces, evaporator 4 Heat exchange amount reduces, and the rate of discharge of evaporator 4 reduces, and the outlet pressure of evaporator 4 declines, and then 5 rich ammonia steam of separator goes out Mouth pressure accordingly declines, finally so that 9 inlet pressure of turbine remains unchanged.
If extraneous power load rises, 9 active torque of turbine is less than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed declines, and is less than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 It exports control instruction and increases 7 aperture of regulating valve, 9 inlet flow rate of turbine increases therewith, and 9 active torque of turbine is more than generator 11 Electromagnetic resistance square, turbine power generation unit rotating speed rise.
Since 7 aperture of regulating valve increases, and heat source is constant, and 4 heat exchange amount of evaporator is constant, and 4 rate of discharge of evaporator is constant, The increase of 7 aperture of regulating valve causes pipe resistance characteristic to reduce, and 4 outlet pressure of evaporator declines, 5 rich ammonia steam of separator outlet pressure Power reduces, and is less than rated pressure, and the pressure signal of measurement is input to controller 8 by pressure measurement transmitter 6, and controller 8 exports Signal is controlled, the rotating speed of control heat source pump 1 makes the rotating speed of heat source pump 1 rise, and heat source flow increases, and 4 heat exchange amount of evaporator increases Greatly, 4 rate of discharge of evaporator increase, 4 outlet pressure of evaporator rise, then 5 rich ammonia steam outlet pressure of separator it is corresponding on It rises, finally so that turbine inlet pressure remains unchanged.
Single machine flow-rate adjustment method can utilize the storage capacity of evaporator, quickly be adjusted in the case where pressure change is little Rotating speed, but since evaporator exit pressure changes, the long period is needed to can be only achieved new balance.
2, pressure adjusts method
If extraneous power load declines, 9 active torque of turbine is more than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed rises, and is higher than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 Exporting control instruction reduces the rotating speed of heat source pump 1, and heat source flow reduces, and the heat exchange amount of evaporator 4 reduces, 4 outlet stream of evaporator Amount reduces, and 4 outlet pressure of evaporator declines, and the pressure signal of measurement is input to controller 8 by pressure measurement transmitter 6, controls The output control instruction of device 8 reduces the aperture of regulating valve 7, and 9 inlet flow rate of turbine reduces, and 9 active torque of turbine reduces, final to make 9 rotating speed of turbine remains unchanged.
If extraneous power load rises, 9 active torque of turbine is less than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed declines, and is less than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 It exports control instruction and improves heat source 1 rotating speed of pump, heat source flow increases, and the heat exchange amount of evaporator 4 increases, 4 rate of discharge of evaporator Increase, 4 outlet pressure of evaporator rises, and the pressure signal of measurement is input to controller 8, controller 8 by pressure measurement transmitter 6 The aperture that control instruction increases regulating valve 7 is exported, 9 inlet flow rate of turbine increases, and 9 active torque of turbine increases, final so that saturating Flat 9 rotating speeds remain unchanged.
Pressure adjusts method can reach new balance faster, but cannot utilize the storage capacity of evaporator, also can not Participate in primary frequency modulation.
3, rotating speed-pressure adjusts method
If extraneous power load declines, 9 active torque of turbine is more than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed rises, and is higher than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 The aperture that control instruction reduces regulating valve 7 is exported, while controller 8 exports the rotating speed of control instruction reduction heat source pump 1;
The aperture reduction of regulating valve 7 causes the reduction of 9 inlet flow rate of turbine, 9 active torque of turbine to be less than the electricity of generator 11 Magnetic resistance moment, turbine power generation unit rotating speed decline, and 5 rich ammonia steam outlet pressure of short time inner separator rises;
Heat source, which pumps the decline of 1 rotating speed, causes heat source flow to reduce, and 4 heat exchange amount of evaporator reduces, and 4 rate of discharge of evaporator subtracts Small, 4 outlet pressure of evaporator is gradually reduced, and then the rich ammonia vapor outlet port pressure of separator 5 accordingly declines, finally so that turbine 9 Inlet pressure remains unchanged.
If extraneous power load rises, 9 active torque of turbine is less than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed declines, and is less than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 The aperture that control instruction increases regulating valve 7 is exported, while controller 8 exports control instruction and increases heat source 1 rotating speed of pump;
The aperture increase of regulating valve 7 causes turbine inlet flow rate to increase, and 9 active torque of turbine is more than the electromagnetism of generator 11 The moment of resistance, turbine power generation unit rotating speed rise, and 5 rich ammonia steam outlet pressure of short time inner separator declines;
Heat source, which pumps the rising of 1 rotating speed, causes heat source flow to increase, and 4 heat exchange amount of evaporator increases, and 4 rate of discharge of evaporator increases Greatly, 4 outlet pressure of evaporator is gradually increasing, and then the rich ammonia vapor outlet port pressure of separator 5 accordingly rises, finally so that turbine 9 Inlet pressure remains unchanged.
Rotating speed-pressure adjusts that method combines flow-rate adjustment method and pressure adjusts method, and the storage capacity, simultaneously of evaporator is utilized New equilibrium state can be rapidly reached.
4, grid-connected pressure adjusts method
Utilize control method for coordinating when being incorporated into the power networks of the ammonia water mixture power cycle generating system of adjustable heat source It is identical as single-unit operation control method for coordinating.
Because ammonia water mixture power cycle generating system is in industrial afterheat recovery and fluctuation-type renewable energy utilization side There is an extensive application in face, thus basis described below make full use of waste heat principle be incorporated into the power networks control method for coordinating and it is grid-connected before, get rid of Single machine adjusting method after load, by taking industrial afterheat recovery as an example, referring to Fig. 2, the ammonium hydroxide using non-adjustable heat source mixes work Matter power cycle generating system, including the first heat source regulating valve 2, Secondary Heat Source regulating valve 3, evaporator 4, separator 5, pressure are surveyed Transmitter 6, regulating valve 7, controller 8, turbine 9, tachometric survey transmitter 10, generator 11, throttle valve 12, mixer 13, Cryogenic regenerator 14, condenser 15, working medium pump 16 and high temperature regenerator 17.
Industrial exhaust heat is connect with the first heat source regulating valve 2 and Secondary Heat Source regulating valve 3 respectively, and industrial exhaust heat is through the first heat source Re-injection after regulating valve 2, Secondary Heat Source regulating valve 3 connect the heat source side of evaporator 4, and industrial exhaust heat is after the heat source side of evaporator 4 Re-injection forms heat source side access;Evaporator 4 divides two-way after separator 5, all the way through pressure measurement transmitter 6,7 and of regulating valve Turbine 9 is connect with the entrance of mixer 13, and another way is connect through high temperature regenerator 17 and throttle valve 12 with the entrance of mixer 13; The outlet of mixer 13 is connect after cryogenic regenerator 14 and condenser 15 with 16 entrance of working medium pump, and working medium pump 16 is exported through low temperature Regenerator 14, high temperature regenerator 17 are connect with evaporator 4, formation working medium side circulation path, 9 coaxially connected generator 11 of turbine, Tachometric survey transmitter 10 is provided between turbine 9 and generator 11.
Controller 8 is separately connected the first heat source regulating valve 2, Secondary Heat Source regulating valve 3, pressure measurement transmitter 6, regulating valve 7 and tachometric survey transmitter 10 constitute control system.
There is still a need for rotational speed regulations before grid-connected or when removal of load, control method is identical as single machine adjusting, and difference lies in controls The method in heating source is become adjusting the aperture of the first heat source regulating valve and Secondary Heat Source regulating valve from adjusting heat source revolution speed, specifically It is as follows:
1, single machine flow-rate adjustment method
If extraneous power load declines, 9 active torque of turbine is more than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed rises, and is higher than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 It exports control instruction and reduces 7 aperture of regulating valve, 9 inlet flow rate of turbine decreases, and 9 active torque of turbine is less than generator 11 Electromagnetic resistance square, turbine power generation unit rotating speed decline;
Since 7 aperture of regulating valve reduces, and heat source is constant, and 4 heat exchange amount of evaporator is constant, and 4 rate of discharge of evaporator is constant, The reduction of 7 aperture of regulating valve causes pipe resistance characteristic to increase, and 4 outlet pressure of evaporator rises, the rich ammonia steam outlet of separator 5 Pressure increases, and is higher than rated pressure, and the pressure signal of measurement is input to controller 8 by pressure measurement transmitter 6, and controller 8 is defeated Go out and control signal, increase the aperture of the first heat source regulating valve 2, while reducing 3 aperture of Secondary Heat Source regulating valve, heat source flow subtracts Small, 4 heat exchange amount of evaporator reduces, and 4 rate of discharge of evaporator reduces, and 4 outlet pressure of evaporator declines, then the richness of separator 5 Ammonia steam exit pressure accordingly declines, and finally so that 9 inlet pressure of turbine remains unchanged, reduces valve;
If extraneous power load rises, 9 active torque of turbine is less than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed declines, and is less than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 It exports control instruction and increases 7 aperture of regulating valve, 9 inlet flow rate of turbine increases therewith, and 9 active torque of turbine is more than generator 11 Electromagnetic resistance square, turbine power generation unit rotating speed rise;
Since 7 aperture of regulating valve increases, and heat source is constant, and 4 heat exchange amount of evaporator is constant, and 4 rate of discharge of evaporator is constant, The increase of 7 aperture of regulating valve causes pipe resistance characteristic to reduce, and 4 outlet pressure of evaporator declines, the rich ammonia steam outlet of separator 5 Pressure reduction is less than rated pressure, and the pressure signal of measurement is input to controller 8 by pressure measurement transmitter 6, and controller 8 is defeated Go out and control signal, reduce the aperture of the first heat source regulating valve 2, while increasing the aperture of Secondary Heat Source regulating valve 3, heat source flow increases Greatly, 4 heat exchange amount of evaporator increases, and 4 rate of discharge of evaporator increases, and 4 outlet pressure of evaporator rises, then the richness of separator 5 Ammonia steam exit pressure accordingly rises, final so that the inlet pressure of turbine 9 remains unchanged.
2, single machine pressure adjusts method
If extraneous power load declines, 9 active torque of turbine is more than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed rises, and is higher than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 It exports control instruction and increases the aperture of the first heat source regulating valve 2, while reducing the aperture of Secondary Heat Source regulating valve 3, heat source flow Reduce, 4 heat exchange amount of evaporator reduces, and 4 rate of discharge of evaporator reduces, and 4 outlet pressure of evaporator declines, pressure measurement transmitter The pressure signal of measurement is input to controller 8 by 6, and controller 8 exports the aperture that control instruction reduces regulating valve 7,9 import of turbine Flow-reduction, 9 active torque of turbine reduce, final so that the rotating speed of turbine 9 remains unchanged.
If extraneous power load rises, 9 active torque of turbine is less than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed declines, and is less than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 It exporting control instruction and reduces 2 aperture of the first heat source regulating valve, while increasing 3 aperture of Secondary Heat Source regulating valve, heat source flow increases, 4 heat exchange amount of evaporator increases, and 4 rate of discharge of evaporator increases, and 4 outlet pressure of evaporator rises, and pressure measurement transmitter 6 will be surveyed The pressure signal of amount is input to controller 8, and controller 8 exports the aperture that control instruction increases regulating valve 7,9 inlet flow rate of turbine Increase, 9 active torque of turbine increases, final so that the rotating speed of turbine 9 remains unchanged.
3, single machine rotating speed-pressure adjusts method
If extraneous power load declines, 9 active torque of turbine is more than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed rises, and is higher than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 The aperture that control instruction reduces regulating valve 7 is exported, while controller 8 exports control instruction and increases opening for the first heat source regulating valve 2 Degree, while reducing the aperture of Secondary Heat Source regulating valve 3;
The aperture reduction of regulating valve 7 causes the reduction of 9 inlet flow rate of turbine, 9 active torque of turbine to be less than the electricity of generator 11 Magnetic resistance moment, turbine power generation unit rotating speed decline, and the rich ammonia steam outlet pressure of short time inner separator 5 rises;
Increase the aperture of the first heat source regulating valve 2, while reducing the aperture of Secondary Heat Source regulating valve 3;Lead to heat source flow Reduce, the heat exchange amount of evaporator 4 reduces, and 4 rate of discharge of evaporator reduces, and 4 outlet pressure of evaporator is gradually reduced, then detaches The rich ammonia vapor outlet port pressure of device 5 accordingly declines, finally so that 9 inlet pressure of turbine remains unchanged.
If extraneous power load rises, 9 active torque of turbine is less than the electromagnetic resistance square of generator 11, turbine generators Group rotating speed declines, and is less than rated speed, and the tach signal of measurement is input to controller 8, controller 8 by tachometric survey transmitter 10 It exports control instruction and increases 7 aperture of regulating valve, while controller 8 exports the aperture that control instruction reduces the first heat source regulating valve 2, Increase the aperture of Secondary Heat Source regulating valve 3 simultaneously.
The aperture increase of regulating valve 7 causes 9 inlet flow rate of turbine to increase, and 9 active torque of turbine is more than the electricity of generator 11 Magnetic resistance moment, turbine power generation unit rotating speed rise, and the rich ammonia steam outlet pressure of short time inner separator 5 declines;
Reduce the aperture of the first heat source regulating valve 2, while the aperture for increasing Secondary Heat Source regulating valve 3 causes heat source flow to increase Greatly, 4 heat exchange amount of evaporator increases, and 4 rate of discharge of evaporator increases, and 4 outlet pressure of evaporator is gradually increasing, then separator 5 Rich ammonia vapor outlet port pressure accordingly rise, finally so that 9 inlet pressure of turbine remain unchanged.
4, grid-connected pressure adjusts method
After grid-connected, since industrial afterheat recovery electricity generation system is not involved in primary frequency modulation, therefore rotating speed is by power grid control, the first warm Source regulating valve 2 completely closes, and Secondary Heat Source regulating valve 3 is opened completely, it is only necessary to 9 inlet pressure of turbine is adjusted, turbine 9 Inlet pressure adjusting method is as follows:
If heat source flow increases, 4 heat exchange amount of evaporator increases, and ammonia water mixture evaporation capacity increases, the outlet of evaporator 4 pressure Power rises, and then the rich ammonia steam outlet pressure of separator 5 rises, and pressure measurement transmitter 6 inputs the pressure signal of measurement To controller 8, controller 8 exports the aperture that control instruction increases regulating valve 7, and 9 inlet flow rate of turbine increases, the richness of separator 5 Ammonia steam exit pressure declines, and 9 inlet pressure of final turbine remains unchanged.
If heat source flow reduces, 4 heat exchange amount of evaporator reduces, and ammonia water mixture evaporation capacity reduces, the outlet of evaporator 4 Pressure reduction, then the rich ammonia steam outlet pressure reduction of separator 5, pressure measurement transmitter 6 are defeated by the pressure signal of measurement Enter to controller 8, the aperture of the output control instruction reduction regulating valve 7 of controller 8, the reduction of 9 inlet flow rate of turbine, separator 5 Rich ammonia steam outlet pressure rises, finally so that 9 inlet pressure of turbine remains unchanged.
The advantages of grid-connected pressure adjusting method is can to make full use of heat source, but turbine speed can only be adjusted by power grid, no Participate in power grid frequency modulation.
The above content is merely illustrative of the invention's technical idea, and protection scope of the present invention cannot be limited with this, every to press According to technological thought proposed by the present invention, any change done on the basis of technical solution each falls within claims of the present invention Protection domain within.

Claims (9)

1. a kind of ammonia water mixture power cycle generating system, which is characterized in that including the first heat source regulating valve (2), second Heat source regulating valve (3) and heat source side access, the first heat source regulating valve (2) and Secondary Heat Source regulating valve (3) pump (1) with heat source respectively Or industrial exhaust heat connection, heat source pump GEOTHERMAL WATER or the industrial exhaust heat re-injection after the first heat source regulating valve (2) of (1), Secondary Heat Source Regulating valve (3) connects the heat source side of evaporator (4), and the re-injection after the heat source side of evaporator (4) of GEOTHERMAL WATER or industrial exhaust heat is formed Heat source side access;
Evaporator (4) divides two-way after separator (5), all the way successively through pressure measurement transmitter (6), regulating valve (7) and turbine (9) it is connect with the entrance of mixer (13), another way is successively through high temperature regenerator (17) and throttle valve (12) and mixer (13) Entrance connection;The outlet of mixer (13) successively after cryogenic regenerator (14) and condenser (15) with working medium pump (16) entrance Connection, working medium pump (16) outlet connect to form working medium through cryogenic regenerator (14), high temperature regenerator (17) with evaporator (4) successively Side circulation path, turbine (9) coaxially connected generator (11) are provided with tachometric survey change between turbine (9) and generator (11) Send device (10);
Heat source pumps (1), the first heat source regulating valve (2), Secondary Heat Source regulating valve (3), pressure measurement transmitter (6), regulating valve (7) Connect and compose the control system of cycle generating system with controller (8) respectively with tachometric survey transmitter (10).
2. a kind of control method for coordinating using ammonia water mixture power cycle generating system described in claim 1, feature It is, method is adjusted using flow-rate adjustment method, pressure, rotating speed pressure adjusts method or grid-connected pressure adjusts method to being provided with separator (5) power cycle generating system is adjusted, and the rotating speed of (1) and the aperture of regulating valve (7) are pumped by adjusting heat source respectively So that turbine (9) inlet pressure is remained unchanged, realizes that the coordination to adjustable heat source controls;By adjusting regulating valve (7), the first heat source The aperture of regulating valve (2) and Secondary Heat Source regulating valve (3) makes turbine (9) inlet pressure remain unchanged, and realizes to non-adjustable heat source Coordination control.
3. a kind of control method for coordinating of ammonia water mixture power cycle generating system according to claim 2, special Sign is, carries out coordinating to control to adjustable heat source using flow-rate adjustment method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, on turbine power generation unit rotating speed It rises, controller reduces the aperture of regulating valve (7), and turbine active torque is less than the electromagnetic resistance square of generator, turbine power generation unit Rotating speed declines, and the rotating speed decline of controller (8) control heat source pump (1) makes the rich ammonia steam outlet pressure of separator (5) decline, most Eventually so that turbine inlet pressure remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, under turbine power generation unit rotating speed Drop, controller increase the aperture of regulating valve (7), and turbine active torque is more than the electromagnetic resistance square of generator, turbine power generation unit Rotating speed rises, and the rotating speed rising of controller (8) control heat source pump (1) makes the rich ammonia steam outlet pressure of separator (5) rise, most Eventually so that turbine inlet pressure remains unchanged.
4. a kind of control method for coordinating of ammonia water mixture power cycle generating system according to claim 2, special Sign is, carries out coordinating to control to adjustable heat source using pressure adjusting method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, on turbine power generation unit rotating speed It rises, the rotating speed that controller (8) improves heat source pump (1) makes evaporator exit pressure decline, and controller reduces opening for regulating valve (7) Degree, turbine active torque reduce, and turbine speed remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, under turbine power generation unit rotating speed Drop, the rotating speed that controller (8) improves heat source pump (1) make evaporator exit pressure rise, and controller increases opening for regulating valve (7) Degree, turbine active torque increase, and turbine speed remains unchanged.
5. a kind of control method for coordinating of ammonia water mixture power cycle generating system according to claim 2, special Sign is, carries out coordinating to control to adjustable heat source using rotating speed pressure adjusting method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, on turbine power generation unit rotating speed It rises, is higher than rated speed, controller (8) reduces the aperture of regulating valve (7), and reduces the rotating speed of heat source pump (1), turbine active force Square is less than the electromagnetic resistance square of generator, and turbine power generation unit rotating speed declines, under the rich ammonia vapor outlet port pressure of separator (5) Drop, finally so that turbine inlet pressure remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, under turbine power generation unit rotating speed Drop is less than rated speed, and controller (8) increases the aperture of regulating valve (7), and increases the rotating speed of heat source pump (1), turbine active force Square is more than the electromagnetic resistance square of generator, and turbine power generation unit rotating speed rises, in the rich ammonia vapor outlet port pressure of separator (5) It rises, finally so that turbine inlet pressure remains unchanged.
6. a kind of control method for coordinating of ammonia water mixture power cycle generating system according to claim 2, special Sign is, carries out coordinating to control to non-adjustable heat source using flow-rate adjustment method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, on turbine power generation unit rotating speed It rises, is higher than rated speed, controller (8) reduces the aperture of regulating valve (7), and turbine active torque is less than the electromagnetic resistance of generator Square, turbine power generation unit rotating speed decline, and the rich ammonia steam outlet pressure of separator (5) increases, and is higher than rated pressure, controller (8) increase the aperture of the first heat source regulating valve (2), while reducing Secondary Heat Source regulating valve (3) aperture, the rich ammonia of separator (5) Steam exit pressure declines, finally so that turbine (9) inlet pressure remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, turbine power generation unit rotating speed Decline, be less than rated speed, controller (8) increases the aperture of regulating valve (7), and the electromagnetism that turbine active torque is more than generator hinders Torque, turbine power generation unit rotating speed rise, and the rich ammonia steam outlet pressure of separator (5) reduces, and is less than rated pressure, controller (8) reduce the aperture of the first heat source regulating valve (2), while increasing the aperture of Secondary Heat Source regulating valve (3), the richness of separator (5) Ammonia steam exit pressure rises, finally so that the inlet pressure of turbine (9) remains unchanged.
7. a kind of control method for coordinating of ammonia water mixture power cycle generating system according to claim 2, special Sign is, carries out coordinating to control to non-adjustable heat source using pressure adjusting method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, on turbine power generation unit rotating speed It rises, is higher than rated speed, controller (8) increases the aperture of the first heat source regulating valve (2), while reducing Secondary Heat Source regulating valve (3) aperture, evaporator (4) outlet pressure decline, and controller (8) reduces the aperture of regulating valve (7), turbine inlet flow rate drop Low, turbine active torque reduces, final so that the rotating speed of turbine remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, under turbine power generation unit rotating speed Drop is less than rated speed, and controller (8) reduces first heat source regulating valve (2) aperture, while increasing Secondary Heat Source regulating valve (3) Aperture, evaporator (4) outlet pressure rise, and controller (8) increases the aperture of regulating valve (7), and turbine inlet flow rate increases, turbine Active torque increases, final so that the rotating speed of turbine remains unchanged.
8. a kind of control method for coordinating of ammonia water mixture power cycle generating system according to claim 2, special Sign is, carries out coordinating to control to non-adjustable heat source using rotating speed pressure adjusting method specific as follows:
If extraneous power load declines, turbine active torque is more than the electromagnetic resistance square of generator, on turbine power generation unit rotating speed It rising, is higher than rated speed, controller (8) reduces the aperture of regulating valve (7), while increasing the aperture of the first heat source regulating valve (2), Reduce the aperture of Secondary Heat Source regulating valve (3), turbine active torque is less than the electromagnetic resistance square of generator, and turbine power generation unit turns Speed declines, and the rich ammonia vapor outlet port pressure of separator (5) declines, finally so that turbine (9) inlet pressure remains unchanged;
If extraneous power load rises, turbine active torque is less than the electromagnetic resistance square of generator, under turbine power generation unit rotating speed Drop is less than rated speed, and controller (8) increases regulating valve (7) aperture, while reducing the aperture of the first heat source regulating valve (2), increases The aperture of big Secondary Heat Source regulating valve (3), turbine active torque are more than the electromagnetic resistance square of generator, turbine power generation unit rotating speed Rise, the rich ammonia vapor outlet port pressure of separator (5) rises, finally so that turbine (9) inlet pressure remains unchanged.
9. a kind of control method for coordinating of ammonia water mixture power cycle generating system according to claim 2, special Sign is, after grid-connected, rotating speed is completely closed by power grid control, the first heat source regulating valve (2), and Secondary Heat Source regulating valve (3) is complete It opens, non-adjustable heat source is carried out coordinating to control using grid-connected pressure adjusting method specific as follows:
If heat source flow increases, evaporator (4) heat exchange amount increases, and evaporator (4) outlet pressure rises, the rich ammonia of separator (5) Steam exit pressure rises, and controller (8) increases the inlet flow rate of the aperture increase turbine (9) of regulating valve (7), separator (5) Rich ammonia steam outlet pressure decline, final turbine (9) inlet pressure remains unchanged;
If heat source flow reduces, evaporator (4) heat exchange amount reduces, and the outlet pressure of evaporator (4) reduces, the richness of separator (5) Ammonia steam exit pressure reduces, and controller (8) reduces the inlet flow rate of the aperture reduction turbine (9) of regulating valve (7), separator (5) rich ammonia steam outlet pressure rises, finally so that turbine (9) inlet pressure remains unchanged.
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Publication number Priority date Publication date Assignee Title
CN102337940A (en) * 2011-09-16 2012-02-01 东南大学 Ammonia water absorption type power circulating device with variable concentration regulating power
CN202220628U (en) * 2011-09-13 2012-05-16 上海盛合新能源科技有限公司 Combined cycle power generation system for increasing use efficiency of heat source
CN104074565A (en) * 2014-01-16 2014-10-01 中冶南方工程技术有限公司 Working medium concentration adjustable ammonia power cycle system
CN105134321A (en) * 2015-07-10 2015-12-09 东南大学 Dual-pressure evaporation ammonium hydroxide power circulation power generation device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202220628U (en) * 2011-09-13 2012-05-16 上海盛合新能源科技有限公司 Combined cycle power generation system for increasing use efficiency of heat source
CN102337940A (en) * 2011-09-16 2012-02-01 东南大学 Ammonia water absorption type power circulating device with variable concentration regulating power
CN104074565A (en) * 2014-01-16 2014-10-01 中冶南方工程技术有限公司 Working medium concentration adjustable ammonia power cycle system
CN105134321A (en) * 2015-07-10 2015-12-09 东南大学 Dual-pressure evaporation ammonium hydroxide power circulation power generation device

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