CN205858491U - The water combined power and cooling distributed energy system of promotion is combined based on combustion gas ORC - Google Patents
The water combined power and cooling distributed energy system of promotion is combined based on combustion gas ORC Download PDFInfo
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- CN205858491U CN205858491U CN201620794799.0U CN201620794799U CN205858491U CN 205858491 U CN205858491 U CN 205858491U CN 201620794799 U CN201620794799 U CN 201620794799U CN 205858491 U CN205858491 U CN 205858491U
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Abstract
This utility model relates to a kind of water combined power and cooling distributed energy system combining promotion based on combustion gas ORC.Including gas power generation system, vapor-compression refrigerant cycle system and reverse osmosis seawater desalination system, cold with vapor-compression refrigerant cycle system reduces the air inlet temperature of gas power generation system, sea water enters the condenser of vapor-compression refrigerant cycle system as low-temperature receiver, is preheated simultaneously.Further, high pressure organic rankine cycle system and/or low pressure organic rankine cycle system are coupled in distributed energy system, gas power generation system utilizes the cryogenic fluid in low pressure organic rankine cycle system to realize intercooling, cryogenic fluid utilizes low temperature exhaust heat to drive low-pressure expansion machine, drives helical-lobe compressor to realize refrigeration；High pressure organic rankine cycle system utilizes middle-low temperature heat to drive high pressure expansion machine, drives high-pressure pump to carry out desalinization；Sea water then sequentially passes through three condensers as low-temperature receiver, is preheated simultaneously, improves seawater desalination recovery rate.
Description
Technical field
This utility model belongs to the energy and power technology field, particularly to a kind of water combining promotion based on combustion gas-ORC
Combined power and cooling distributed energy system.
Background technology
The in short supply of water resource has become a worldwide problem.China's water resources shortage, still with northwest arid area, North China
Area, coastal area the most serious with island hydropenia.Desalinization and brackish water desalination are the important handss solving water-deficient area
Section.The method of desalinization at present has multiple-effect distillation, electroosmose process, hyperfiltration etc..Reverse osmosis seawater desalting is by sea water
Force pressurization to make fresh water pass through face and enter opposite side, thus realize the desalination of sea water, have that reduced investment, energy consumption be low, the construction period
Short, take up an area few feature, be recent two decades desalination technology with fastest developing speed.Most countries is all headed by hyperfiltration
Choosing.Owing to reverse osmosis needs high pressure, so high-pressure pump becomes the parts that reverse osmosis seawater desalting is most crucial.The existing reverse osmosis of China
Desalinization many employings electric drive, needs to consume substantial amounts of electric work thoroughly.The rotating machinery band dynamic high-pressure driven if, with waste heat
Pump will save substantial amounts of electric energy, also improve the utilization rate of waste heat simultaneously.
Organic Rankine bottoming cycle (ORC) be considered as a kind of can effectively utilize in the technology of low temperature heat energy, traditional steam is bright
Agreeing circulation, with water as working medium, the boiling point of water is high, if, with low temperature exhaust heat, owing to steam specific volume is big, it is not easy to reach and keep
Superheat state so that cycle efficieny is the lowest, even can not complete circulation.Organic rankine cycle system is due to organic working medium boiling point
Low, it is easy to overheated, produce high steam, ORC equipment is simple in addition, it is simple to integrated and mobile, thus for reclaim 300 DEG C with
Under low temperature exhaust heat have big advantage.Can be used to generate electricity, it is also possible to be used for driving the compressor of refrigeration system and driving anti-
The high-pressure pump of penetration sea water desalinization system.But residual heat resources often have, and hot-fluid is unstable, corrosivity is high, chemical impurity is many
Feature, the waste heat finding a kind of stable cleaning is a key issue of high efficiency drive desalinization.
Gas-turbine installation is the thermodynamic apparatus as working medium with air and combustion gas, and simple circulation is main by compressor,
Combustor and the big master unit of gas turbine three are constituted, but, simple controlling gas-combustion power circulation due to exhaust gas temperature often at 500 DEG C
Above, causing cycle efficieny the highest, it is employing classification pressure on the basis of backheat that one of which improves the way of cycle efficieny
Contracting intercooling, after intercooling, the outlet temperature of high-pressure compressor reduces, and exhaust steam row so can be made to drop to the temperature of environment
Low, i.e. reduce the average exothermic temperature of circulation, and compared with simple extraction cycle, average endothermic temperature is constant, thus permissible
Improve thermal efficiency of cycle.Additionally, the EGT about 240-340 DEG C discharged from regenerator, the used heat of intercooler has 100-
150 DEG C, it is seen that still have substantial amounts of middle-low temperature heat to utilize, and gas turbine technology is ripe, and waste heat is stable, and fuel is with sky
So gas and oil are main, and environmental pollution is little.
The system integration in a distributed manner of middle-size and small-size gas turbine and miniature gas turbine is main, carries out sea water if, with waste heat
Desalination needs to build near seashore, boats and ships or island, and in seashore, ship or island has substantial amounts of Fish, meat to need-20 DEG C
Low-temperature receiver stores.Additionally, when ambient temperature rises, atmospheric density is less, owing to gas turbine is constant volume type dynamic power machine,
Thus cause the mass flow flowing through compressor and turbine to reduce, cause the output drop of gas turbine.The reduction of exerting oneself of turbine
Can be avoided by the air inlet of cooling compressor.Its maximally effective way exerted oneself is increased during the inlet gas cooling of gas turbine.By
Higher in the heat source temperature that flies up of the discharge of regenerator, substantially disclosure satisfy that the demand of reverse osmosis seawater desalting yield, middle cold
But the air waste heat supply temperature of device is relatively low, freezes if, with it, and unit cooling and storage food are more had economy.
Compressed steam kind of refrigeration cycle is made up of compressor, condenser, choke valve and vaporizer etc., and wherein compressor is whole
The heart of system, play a part promote refrigerant pressure and conveying cold-producing medium, compared with compressed air, have two significant excellent
Point: one is saturated vapor isobaric heat absorption and exothermic process is all isothermal process, thus it is closer to reverse Carnot cycle, refrigeration
Coefficient is higher；Two is that the heat of vaporization of steam is very big, thus the refrigerating capacity of unit working medium is big, can use less equipment.With bromine
Changing lithium-absorbing formula refrigeration to compare, it can provide the low-temperature heat source of less than 0 DEG C；Compared with ammonia absorption type refrigeration, initial investment is few,
Volume is little, simple in construction, and coefficient of refrigerating performance is big, but to consume substantial amounts of electric work.But drive ORC to drive if, with low grade residual heat
Screw compression mechanism cold, then can reach identical refrigerating capacity, and initial investment is few, and simple in construction, operating cost is low.
As mentioned above, organic Rankine bottoming cycle has big advantage for low temperature heat energy in reclaiming, if so used
The controlling gas-combustion power circulation of implements spatial scalable compression band backheat, utilizes organic Rankine bottoming cycle to absorb the used heat of controlling gas-combustion power circulation, not only may be used
To improve the generating efficiency of gas turbine, organic Rankine bottoming cycle can be driven to drive screw compression mechanism cold, band dynamic high-pressure simultaneously
Pump carries out desalinization, according to energy taste height, energy is carried out cascade utilization, realizes cold three coproduction of water power efficiently.
Utility model content
Based on this, this utility model provides a kind of water combined power and cooling distributed energy combining promotion based on combustion gas-ORC
System.
The water combined power and cooling distributed energy system of promotion is combined, including gas power generation system, steam based on combustion gas-ORC
Compression cooling cycle system and reverse osmosis seawater desalination system；
In described gas power generation system, low-pressure compressor 10, high-pressure compressor 25, regenerator 24, combustor 23 and combustion gas
Turbine 22 is in turn connected to form the path of air；The air outlet slit of gas turbine 22 is connected with the thermal fluid inlet of regenerator 24；
Gas turbine 22 and electromotor 21 are coaxially connected；
In described vapor-compression refrigerant cycle system, helical-lobe compressor 8, C1 condenser 7, choke valve 6 and V1 vaporizer 5 depend on
The secondary closed-loop path connecting formation refrigeration working medium；The cold part that vapor-compression refrigerant cycle system produces is in order to reduce combustion gas
Air inlet temperature in electricity generation system, another part is in order to freezing Fish meat；
In described reverse osmosis seawater desalination system, the water inlet of raw water pump 1 is connected to sea water, and outlet passes sequentially through porous
Filter 2, accurate filter 3 are connected to the water inlet of C1 condenser 7, and the outlet of C1 condenser 7 is divided into two by pipeline
Branch road, one of them branch road is connected with the water inlet of high-pressure pump 15, another branch road and the low-pressure fluid entrance of pressure exchanger 17
Connect；The outlet of described high-pressure pump 15 is connected with the water inlet of reverse osmosis membrane 19, the water outlet of described reverse osmosis membrane 19 with
Fresh-water tank 20 connects, and concentrated seawater outlet is connected with the high pressure fluid entrances of pressure exchanger 17, the high-pressure spray of pressure exchanger 17
Body outlet is connected by the water inlet of booster pump 16 with reverse osmosis membrane 19, concentrated seawater outlet and the concentrated seawater case of pressure exchanger 17
18 connect.
Further, high pressure organic rankine cycle system is also included；In described high pressure organic rankine cycle system, V2 evaporates
Device 11, high-pressure working medium pump 12, C2 condenser 13 and high pressure expansion machine 14 are in turn connected to form the closed-loop path of organic working medium；By C2
Condenser 13 is connected on the pipeline between C1 condenser 7 and two branch roads；The hot fluid outlet ports of regenerator 24 is evaporated with V2
The air intake of device 11 connects, and the air outlet slit of V2 vaporizer 11 is communicated to air.
Described high-pressure pump 15 is coaxially connected with high pressure expansion machine 14 or is connected by belt.
If described gas turbine 22 uses small size gas turbine or miniature gas turbine, the most described high pressure organic Rankine to follow
Loop systems is integrated into moveable structure, it is simple to removes flexibly or installs.
Further, low pressure organic rankine cycle system is also included；In described low pressure organic rankine cycle system, low pressure is swollen
Swollen machine 9, C3 condenser 4, low pressure working fluid pump 27 and V3 vaporizer 26 are in turn connected to form the closed-loop path of organic working medium；V3 is steamed
Send out device 26 and be connected to realize between low-pressure compressor 10 and high-pressure compressor 25 intercooling of two stages of compression；C3 condenser 4 is even
It is connected on pre-hot sea water between accurate filter 3 and C1 condenser 7.
Described helical-lobe compressor 8 is coaxially connected with low-pressure expansion machine 9 or is connected by belt.
If described gas turbine 22 uses small size gas turbine or miniature gas turbine, the most described low pressure organic Rankine to follow
Loop systems is integrated into moveable structure, it is simple to removes flexibly or installs.
The beneficial effects of the utility model are:
In this utility model, gas power generation system utilizes the cryogenic fluid of 25 DEG C of low pressure organic rankine cycle system to realize
Two stages of compression intercooling, reduces the average exothermic temperature of circulation, improves thermal efficiency of cycle, add the output of electric energy.
In this utility model, low pressure organic rankine cycle system utilizes gas power generation system mesolow blower outlet
100-150 DEG C of low temperature exhaust heat drives low-pressure expansion machine, and then drives the helical-lobe compressor in vapor-compression refrigerant cycle system
Realize refrigeration, replace the electric energy required for helical-lobe compressor compressed steam with this, reach the purpose that low grade residual heat utilizes.One
Part cold, for reducing the intake air temperature of air in gas power generation system, is greatly improved the circulation thermal effect of gas power generation system
Rate；Another part cold may be used for storing Fish, meat.
In this utility model, high pressure organic rankine cycle system utilizes from regenerator outlet in gas power generation system
240-340 DEG C of middle-low temperature heat drives high pressure expansion machine, and then drives high-pressure pump to rotate, and carries out desalinization.
In this utility model, high pressure organic rankine cycle system uses organic working medium R123, in reclaiming more than 200 DEG C
Low temperature exhaust heat has the strongest advantage, and low pressure organic rankine cycle system uses organic working medium R245fa, is suitable for reclaiming less than 150 DEG C
Low temperature exhaust heat, make full use of remaining temperature waste heat, improve heat utilization rate, energy efficient so that cycle efficieny is greatly promoted.
In this utility model, sea water is through the condenser of two organic rankine cycle systems and vapor-compression refrigerant cycle system
Condenser in system, utilizes waste heat to improve the temperature of former sea water, is greatly increased seawater desalination recovery rate, reduces energy consumption simultaneously.
In this utility model, the pressure that high-pressure pump produces is about 6-7.2Mpa, and pressure substantially all can be present in dense sea
In water, utilize pressure exchanger to reclaim this portion of energy, coordinate booster pump, can continue to be sent to reverse osmosis by a part of former sea water
Film, increases fresh water productivity, and wherein the pressure energy organic efficiency of pressure exchanger is about 92%-95%.
In this utility model, C3 condenser and C2 condenser are two-tube-pass shell-and-tube heat exchanger, and shell side walks organic working medium, pipe
Journey walks sea water.Owing to using two-tube-pass, velocity in pipes increases, and reduces fouling of heat exchangers；Use two-tube-pass, be greatly shortened heat exchanger
Length, it is simple to integrated transport.Use shell-and-tube heat exchanger, device for storing liquid can be increased below cylinder, save fluid reservoir, joint
Save space.Simultaneously as former sea water first passes through porous filter and accurate filter in advance, it is possible to decrease the sea water corrosion to tube side
Property.
In this utility model, if gas turbine uses small size gas turbine or miniature gas turbine, organic Rankine bottoming cycle
System can make highly integrated " utility cart ", take volume little and be easy to dismounting with transport, it may be necessary to move away.
Accompanying drawing explanation
Fig. 1 is a kind of cold three coproduction distributed energy system flow charts of water power combining promotion based on combustion gas-ORC.
Label declaration: 1-raw water pump, 2-porous filter, 3-accurate filter, 4-C3 condenser, 5-V1 vaporizer, 6-
Choke valve, 7-C1 condenser, 8-helical-lobe compressor, 9-low-pressure expansion machine, 10-low-pressure compressor, 11-V2 vaporizer, 12-high pressure
Working medium pump, 13-C2 condenser, 14-high pressure expansion machine, 15-high-pressure pump, 16-booster pump, 17-pressure exchanger, 18-concentrated seawater
Case, 19-reverse osmosis membrane, 20-fresh-water tank, 21-electromotor, 22-gas turbine, 23-combustor, 24-regenerator, 25-high pressure pressure
Mechanism of qi, 26-V3 vaporizer, 27-low pressure working fluid pump.
Detailed description of the invention
With detailed description of the invention, this utility model is described further below in conjunction with the accompanying drawings.It is emphasized that it is following
That illustrate to be merely exemplary rather than in order to limit scope of the present utility model and application thereof.
A kind of cold three coproduction distributed energy systems of water power combining promotion based on combustion gas-ORC, including combustion
Gas electricity generation system, high pressure organic rankine cycle system, low pressure organic rankine cycle system, vapor-compression refrigerant cycle system and anti-
Penetration sea water desalinization system.
In described gas power generation system, low-pressure compressor 10, V3 vaporizer 26, high-pressure compressor 25, regenerator 24, burning
Room 23 and gas turbine 22 are in turn connected to form the path of air；Gas turbine 22 and electromotor 21 are coaxially connected.
In described high pressure organic rankine cycle system, V2 vaporizer 11, high-pressure working medium pump 12, C2 condenser 13 and high pressure are swollen
Swollen machine 14 is in turn connected to form the closed-loop path of organic working medium R123.The air outlet slit of gas turbine 22 passes through regenerator 24 and V2
The air intake of vaporizer 11 connects, and the air outlet slit of V2 vaporizer 11 is communicated to air.
In described low pressure organic rankine cycle system, low-pressure expansion machine 9, C3 condenser 4, low pressure working fluid pump 27 and V3 evaporate
Device 26 is in turn connected to form the closed-loop path of organic working medium R245fa.
In described vapor-compression refrigerant cycle system, helical-lobe compressor 8, C1 condenser 7, choke valve 6 and V1 vaporizer 5 depend on
The secondary closed-loop path connecting formation refrigeration working medium.Described helical-lobe compressor 8 is coaxially connected with low-pressure expansion machine 9 or is connected by belt
Connect.Described refrigeration working medium uses ammonia.Vapor-compression refrigerant cycle system is in order to freezer refrigerating, and the Cryogenic air in freezer is as combustion
The air source of gas electricity generation system, or the pipeline air intake company through freezer with low-pressure compressor 10 is drawn from the external world
Connect, allow air flow through freezer and become Cryogenic air, subsequently into gas power generation system.
In described reverse osmosis seawater desalination system, the water inlet of raw water pump 1 is connected to sea water, and outlet passes sequentially through porous
Filter 2, accurate filter 3, C3 condenser 4 and C1 condenser 7 are connected to the water inlet of C2 condenser 13, C2 condenser 13
Outlet is divided into two branch roads by pipeline, and one of them branch road is connected with the water inlet of high-pressure pump 15, another branch road and pressure
The low-pressure fluid entrance of exchanger 17 connects；The outlet of described high-pressure pump 15 is connected with the water inlet of reverse osmosis membrane 19, described
The water outlet of reverse osmosis membrane 19 is connected with fresh-water tank 20, and concentrated seawater outlet connects with the high pressure fluid entrances of pressure exchanger 17
Connecing, the high pressure fluid output of pressure exchanger 17 is connected with the water inlet of reverse osmosis membrane 19 by booster pump 16, pressure exchanger
The concentrated seawater outlet of 17 is connected with concentrated seawater case 18.Described high-pressure pump 15 is coaxially connected with high pressure expansion machine 14 or is connected by belt
Connect.
Described C3 condenser 4 and C2 condenser 13 uses two-tube-pass shell-and-tube heat exchanger, and shell side walks organic working medium, and tube side is walked
Sea water.
If described gas turbine 22 uses small size gas turbine or miniature gas turbine, described high pressure organic Rankine bottoming cycle
System and low pressure organic rankine cycle system can distinguish the highly integrated removable frame for " utility cart " formula, take volume little
And it is easy to dismounting and transport, removes as required or install.
The operation principle of following description native system:
Air, after the cold cooling that vapor-compression refrigerant cycle system produces, enters the low pressure pressure in gas power generation system
Mechanism of qi 10 is compressed, and temperature and pressure raises, and enters V3 vaporizer 26 and is cooled down by organic working medium R245fa equipressure, subsequently into height
Pressure compressor 25 continues compression increasing temperature and pressure, and then air is after regenerator 24 heats further, enters combustor 23 and combustion
Material mixing, equipressure is heated to be the gas of High Temperature High Pressure, enters gas turbine 22 and does work, drives electromotor 21 by gas turbine 22
Generating, enters, from gas turbine 22 waste gas out, the sky that regenerator 24 exports from high-pressure compressor 25 as thermal source heating
Gas, reclaims the partial heat of waste gas；
Waste gas is discharged into the V2 vaporizer 11 of high pressure organic rankine cycle system from regenerator 24, in V2 vaporizer 11
Organic working medium R123 is heated into the organic steam of High Temperature High Pressure by 240-340 DEG C of middle-low temperature heat of waste gas, enters high compression swelling
Machine 14 does work, and drives high pressure expansion machine 14 to rotate, and the organic steam doing merit becomes the organic steam of low-temp low-pressure, enters C2 cold
Condenser 13 is condensed into the liquid of certain degree of supercooling by sea water equipressure, enters V2 vaporizer by high-pressure working medium pump 12 and continues to add
Heat, completes circulation.
The low-pressure compressor 10 that the V3 vaporizer 26 of low pressure organic rankine cycle system absorbs from gas power generation system goes out
Organic working medium R245fa is heated into the steam of High Temperature High Pressure by the heat of 100-150 DEG C of mouth, enters low-pressure expansion machine 9 and does work,
Low-pressure expansion machine 9 is driven to rotate, certain for having by seawater condensing from the organic steam of low-pressure expansion machine 9 low-temp low-pressure out
The liquid of degree of supercooling, then passes through low pressure working fluid pump 27 and enters V3 vaporizer 26 and continue heated, complete circulation.
Low-pressure expansion machine 9 drives the helical-lobe compressor 8 of vapor-compression refrigerant cycle system to rotate, and is high by ammonia both vapor compression
The steam of temperature high pressure, ammonia steam enters the isobaric heat release heating seawater of C1 condenser 7 subsequently, enters back into choke valve 6 blood pressure lowering, last liquid
Ammonia enters V1 vaporizer 5 heat absorption and becomes steam, goes successively to helical-lobe compressor 8 and completes subsequent cycle, it is achieved refrigeration.
In reverse osmosis seawater desalination system, former sea water enters porous filter 2 through raw water pump 1 and filters, and enters back into precision
The further remove impurity of filter 3 is filtered, and then sequentially enters C3 condenser 4, C1 condenser 7, C2 condenser 13, successively by organic work
Matter R245fa, ammonia working medium and the preheating of organic working medium R123, then temperature sea water is divided into two-way, and a road enters in high-pressure pump 15, another
Road enters in pressure exchanger 17.High-pressure pump 15 produces under the drive of the high pressure expansion machine 14 of high pressure organic rankine cycle system
High pressure, the warm sea water of high pressure, through reverse osmosis membrane 19, isolates concentrated seawater and fresh water.Concentrated seawater will pressure through pressure exchanger 17
Power can pass to the warm sea water on another road, then produced the sea water of high pressure by booster pump 16, continues through reverse osmosis membrane 19, separates
Go out fresh water and concentrated seawater.
The technique effect of native system is described below as a example by an island gas turbine:
Air mass flow 21.6kg/s, two stages of compression ratio is 3, and gas turbine 22 is with the isentropic efficiency of two stage compressor
0.9, gas turbine 22 isentropic index is 1.33.Sea water specific heat at constant pressure 4.096kJ/ (kg*k), density of sea water 1025kg/m3。
The isentropic efficiency of high pressure expansion machine 14 and low-pressure expansion machine 9 is 0.8, and transmission efficiency is 0.97；The efficiency of high-pressure pump 15 is
0.85, ignore high-pressure working medium pump 12 and the wasted work of low pressure working fluid pump 27.Gas turbine 22 specific heat at constant pressure 1.004, reverse osmosis is returned
Yield is by 40% calculating, and low-pressure compressor 10 inlet temperature is 27 DEG C, outlet temperature 137 DEG C, high-pressure compressor 25 inlet temperature
It is 60 DEG C, outlet temperature 175 DEG C, it is heated to 534 DEG C by regenerator 24, subsequently into combustion from high-pressure compressor 25 air out
Burning room 23 and be heated to maximum temperature 1127 DEG C, gas turbine 22 delivery temperature 597 DEG C, the EGT of regenerator 24 discharge is
238℃；Low pressure organic Rankine follows in bad system, and organic working medium R245fa flow is 7.1kg/s, low pressure working fluid pump 27 inlet temperature
Being 23 DEG C, in V3 vaporizer 26, the inlet temperature of organic working medium R245fa is 25 DEG C, and outlet temperature is 85 DEG C, low-pressure expansion machine 9
Outlet pressure is 0.148MPa；In vapor-compression refrigerant cycle system, ammonia working medium flow 0.65kg/s, helical-lobe compressor 8 import
Temperature is-20 DEG C, and outlet temperature is 113 DEG C, and the ammonia working medium side outlet temperature of C1 condenser 7 is 31 DEG C；High pressure organic Rankine follows
In loop systems, V2 vaporizer 11 outlet gas EGT is 40 DEG C, and the flow of organic working medium R123 is that 17.64kg/s, V2 steam
The organic working medium R123 side entrance temperature sending out device 11 is 30 DEG C, and outlet temperature is 185 DEG C；High-pressure working medium pump 12 inlet temperature is 28
DEG C, operating pressure is 3.45Mpa.In reverse osmosis seawater desalination system, sea water inflow temperature is 15 DEG C, the temperature of condenser 13 outlet
Ocean temperature is 20.1 DEG C, and temperature sea water total flow is 1060m3/ h, high-pressure pump 15 outlet pressure is 6Mpa, high-pressure pump 15 effluent amount
For 425m3/ h, booster pump 16 effluent amount is 635m3/h。
Be can be calculated by above-mentioned condition, two stage compressor wasted work 4879kW, gas turbine 22 does work 11.494MW, the most defeated
Go out electric work 6.615MW；The low-pressure expansion machine 9 of low pressure organic rankine cycle system provides the axle of 176.7kW for helical-lobe compressor 8
Merit；Refrigerating capacity is 721.1kW, and a part is used for reducing the intake air temperature of air in gas power generation system, and another part is used for storing up
Deposit marine Fish, meat.The power of high-pressure pump 15 passed to by the high pressure expansion machine 14 of high pressure organic rankine cycle system
860kW；Daily output fresh water 10430 tons.Whole distributed energy system, heat to power output efficiency 59.5%.Same the gentleest maximum
In the case of circularly-supercharged ratio, in gas-steam combined cycle system, heat to power output efficiency is 53.97%.Native system is than combustion gas-steaming
Vapour combined cycle heat to power output efficiency about improves 6 percentage points.
Claims (8)
1. combine the water combined power and cooling distributed energy system of promotion based on combustion gas-ORC, it is characterised in that include fuel gas generation
System, vapor-compression refrigerant cycle system and reverse osmosis seawater desalination system；
In described gas power generation system, low-pressure compressor (10), high-pressure compressor (25), regenerator (24), combustor (23) and
Gas turbine (22) is in turn connected to form the path of air；The air outlet slit of gas turbine (22) and the hot fluid of regenerator (24)
Entrance connects；Gas turbine (22) and electromotor (21) are coaxially connected；
In described vapor-compression refrigerant cycle system, helical-lobe compressor (8), C1 condenser (7), choke valve (6) and V1 vaporizer
(5) closed-loop path of refrigeration working medium it is in turn connected to form；The cold part that vapor-compression refrigerant cycle system produces is in order to drop
Air inlet temperature in low gas power generation system, another part is in order to freezing Fish meat；
In described reverse osmosis seawater desalination system, the water inlet of raw water pump (1) is connected to sea water, and outlet passes sequentially through porous mistake
Filter (2), accurate filter (3) are connected to the water inlet of C1 condenser (7), and the outlet of C1 condenser (7) is divided by pipeline
Being two branch roads, one of them branch road is connected with the water inlet of high-pressure pump (15), and another branch road is low with pressure exchanger (17)
Pressure fluid intake connects；The outlet of described high-pressure pump (15) is connected with the water inlet of reverse osmosis membrane (19), described reverse osmosis membrane
(19) water outlet is connected with fresh-water tank (20), and concentrated seawater outlet is connected with the high pressure fluid entrances of pressure exchanger (17),
The high pressure fluid output of pressure exchanger (17) is connected with the water inlet of reverse osmosis membrane (19) by booster pump (16), pressure-exchange
The concentrated seawater outlet of device (17) is connected with concentrated seawater case (18).
The water combined power and cooling distributed energy system combining promotion based on combustion gas-ORC the most according to claim 1, it is special
Levy and be, also include high pressure organic rankine cycle system；In described high pressure organic rankine cycle system, V2 vaporizer (11), height
Pressure working medium pump (12), C2 condenser (13) and high pressure expansion machine (14) are in turn connected to form the closed-loop path of organic working medium；By C2
Condenser (13) is connected on the pipeline between C1 condenser (7) and two branch roads；By the hot fluid outlet ports of regenerator (24) with
The air intake of V2 vaporizer (11) connects, and the air outlet slit of V2 vaporizer (11) is communicated to air.
The water combined power and cooling distributed energy system combining promotion based on combustion gas-ORC the most according to claim 2, it is special
Levying and be, described high-pressure pump (15) is coaxially connected with high pressure expansion machine (14) or is connected by belt.
4. according to the water combined power and cooling distributed energy system combining promotion based on combustion gas-ORC described in Claims 2 or 3, its
Being characterised by, if described gas turbine (22) uses small size gas turbine or miniature gas turbine, the most described high pressure is organic bright
Willing blood circulation is integrated into moveable structure, it is simple to removes flexibly or installs.
The water combined power and cooling distributed energy system combining promotion based on combustion gas-ORC the most according to claim 1, it is special
Levy and be, also include low pressure organic rankine cycle system；In described low pressure organic rankine cycle system, low-pressure expansion machine (9), C3
Condenser (4), low pressure working fluid pump (27) and V3 vaporizer (26) are in turn connected to form the closed-loop path of organic working medium；V3 is evaporated
Device (26) is connected to realize between low-pressure compressor (10) and high-pressure compressor (25) intercooling of two stages of compression；C3 condenser
(4) pre-hot sea water between accurate filter (3) and C1 condenser (7) it is connected to.
The water combined power and cooling distributed energy system combining promotion based on combustion gas-ORC the most according to claim 5, it is special
Levying and be, described helical-lobe compressor (8) is coaxially connected with low-pressure expansion machine (9) or is connected by belt.
7. according to the water combined power and cooling distributed energy system combining promotion based on combustion gas-ORC described in claim 5 or 6, its
Being characterised by, if described gas turbine (22) uses small size gas turbine or miniature gas turbine, the most described low pressure is organic bright
Willing blood circulation is integrated into moveable structure, it is simple to removes flexibly or installs.
The water combined power and cooling distributed energy system combining promotion based on combustion gas-ORC the most according to claim 1, it is special
Levy and be, also include high pressure organic rankine cycle system and low pressure organic rankine cycle system；
In described high pressure organic rankine cycle system, V2 vaporizer (11), high-pressure working medium pump (12), C2 condenser (13) and high pressure
Decompressor (14) is in turn connected to form the closed-loop path of organic working medium；C2 condenser (13) is connected to C1 condenser (7) and two
On pipeline between individual branch road；Being connected with the air intake of V2 vaporizer (11) by the hot fluid outlet ports of regenerator (24), V2 steams
The air outlet slit sending out device (11) is communicated to air；Described high-pressure pump (15) is coaxially connected with high pressure expansion machine (14) or passes through belt
Connect；
In described low pressure organic rankine cycle system, low-pressure expansion machine (9), C3 condenser (4), low pressure working fluid pump (27) and V3 steam
Send out device (26) and be in turn connected to form the closed-loop path of organic working medium；V3 vaporizer (26) is connected to low-pressure compressor (10) and height
The intercooling of two stages of compression is realized between pressure compressor (25)；C3 condenser (4) is connected to accurate filter (3) and C1 condensation
Pre-hot sea water between device (7)；Described helical-lobe compressor (8) is coaxially connected with low-pressure expansion machine (9) or is connected by belt.
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