CN101458000B - Heat-driven refrigeration and power generation integration apparatus - Google Patents
Heat-driven refrigeration and power generation integration apparatus Download PDFInfo
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- CN101458000B CN101458000B CN2009100291326A CN200910029132A CN101458000B CN 101458000 B CN101458000 B CN 101458000B CN 2009100291326 A CN2009100291326 A CN 2009100291326A CN 200910029132 A CN200910029132 A CN 200910029132A CN 101458000 B CN101458000 B CN 101458000B
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Abstract
The invention provides a device integrating functions of heat-driven refrigeration and power generation which comprises a heat energy engine and a refrigerator. The heat energy engine comprises a circulating pump, a steam generator, a vapor liquid separator, a two-way valve, a three-way valve, a turbine, a generator, a pressure exchanger, a first vapor-liquid heat exchanger, a first condenser, a unit with two mixing canterns, a reservoir and a reheater. The heat energy engine utilizes heat energy to generate high pressure vapor to drive the compression refrigeration and promote the turbine and the generator to generate power. The refrigerator comprises an evaporator, a second vapor-liquid heat exchanger, a pressure exchanger, a second condenser and an expander. The shaft power output of the expander of the refrigerator is used for driving the circulating pump. Working media of the heat energy engine and the refrigerator can be the same or not. Non-azeotropic working media can be adopted for improving the efficiency. The heat driven-refrigeration and power generation integrated device can use a low grade heat source and can be regulated into individual cold supplying system, a cooling and power combined system or an electricity heat and chilled water congenerating system. The heat driven-refrigeration and power generation integrated device has the advantages of high efficiency, small investment, short installation period, low maintaining fee, etc.
Description
Technical field
The present invention relates to one type novel refrigerating machine rotor machine, specifically is a kind ofly to utilize heat energy directly to drive steam compression type refrigeration and can generate electricity simultaneously and the device of heat supply.
Background technology
Refrigeration has occupied the electric energy of the whole society more than 1/4th with the HVAC power consumption, the alternative energy source of exploitation refrigeration plant and the great cause of the Energy Efficiency Ratio that improves refrigeration plant concerning sustainable development.How to use regenerative resource and industrial exhaust heat on Refrigeration Technique; Directly drive refrigeration plant with heat energy; Build the association system of distributed refrigeration and generating, be the alternative energy source solution that people expect always, and this technology occurs; Not only save electric power and fossil fuel, and help reducing discharging, protection environment.But that is that all right is ripe for the technology of this respect, can not satisfy the specification requirement of application market up to the present.
For the thermal source of temperature between 100～200 ℃, utilize existing steam turbine generation technology, have the shortcoming that investment is huge, generating efficiency is low, the economical operation benefit is low.A lot of regenerative resources and industrial exhaust heat all are low grade heat energies, and for example the temperature of most of geothermal energy resources has only about 100 ℃, and the water temperature of general solar water heater is all below 100 ℃, and the temperature of a lot of industrial water drainages is also below 100 ℃.These low-grade heat sources both had been not suitable for generating, also were not suitable for existing Refrigeration Technique.Adopt at present the technology of thermal refrigerating to have only absorption, absorption type, thermoacoustic refrigeration.Absorption refrigeration needs heat source temperature more than 120 ℃, only is suitable for large-engineering, and investment is big, efficient is low.Absorption type and thermoacoustic refrigeration efficient are low, and technology is immature.
Data check is found a patent (CA101187509A) of directly utilizing heat energy to realize the generating and cooling coproduction; This patent adopts the cycle fluid of the mode compression refigerating machine of steam injection; Except inefficient shortcoming; Thermal engine and cold-producing medium can only use with a kind of working medium, can not satisfy the demand of different heat sources temperature and different cryogenic temperatures.
Summary of the invention
Technical problem: the present invention has overcome the weak point of prior art, has proposed a kind of low grade heat energy that efficiently utilizes, and directly drives the refrigeration and the generating integration device of the heat energy driving of steam compression type refrigeration circulation and generating.This device is made up of Thermal Motor and refrigeration machine two parts; Adopt environmental-protection refrigeration working medium; Adopt the generating of organic working medium Rankine cycle turbine pushing generator, adopt pressure exchanger that the cycle fluid of refrigeration machine is compressed, adopt the vapour-liquid heat exchanger to improve utilization efficiency of heat energy; Adopt the circulating pump of the shaft work driving thermal engine of refrigeration machine expander, greatly improved the utilization efficiency of heat energy and the refrigerating capacity output of system.
Technical scheme: refrigeration and generating integration device that this heat energy drives, form by thermal engine that intercouples and refrigeration machine.Thermal engine adopts the organic working medium Rankine cycle; Comprise circulating pump, steam generator, vapour liquid separator, two-way valve, triple valve, turbine, generator, pressure exchanger, the first vapour-liquid heat exchanger, interflow device, first condenser, reservoir, reheater; Thermal engine is transformed into the heat energy of thermal source the kinetic energy of electric energy and compression refrigeration cycle fluid.Refrigeration machine comprises evaporimeter, the second vapour-liquid heat exchanger, pressure exchanger, second condenser, expander, expansion valve, compressor; The working medium compression process of refrigeration machine is realized in pressure exchanger by the high-pressure working medium of thermal engine, the working medium pump shaft coupling of refrigeration machine expander and generator, and the shaft work of expander is exported to circulating pump, and the pump merit of insufficient section has motor to replenish.This device can be according to heat source temperature and user's request different, adopt independent cooling, combined cooling and power or cold, heat and electricity triple supply different mode.
In the thermal engine device, turbine is the device that a kind of energy of steam expansion is transformed into kinetic energy, can be special-purpose steam turbine, also can be the expander of compressor transformation.Pressure exchanger is to be used to realize carry out the permutable device of pressure between two cycle fluids, is to use the high pressure of thermal engine cycle fluid to come the cycle fluid of compression refigerating machine.Pressure exchanger can be the decompressor of connecting shaft and the pressure exchanger of compressor combination, pressure exchanger, steam injection equipment or other type.Turbine, generator can be integrated with pressure exchanger, and in this case, turbine connects refrigeration compressor and generator respectively, and a part of kinetic energy of turbine is used for Driven Compressor, and remainder kinetic energy drives generator.
In the thermal engine device, adopt the vapour-liquid heat exchanger, the waste heat in the recovered steam is used for the preheating of high-pressure liquid working medium, improves the delivery efficiency of thermal engine; In refrigerator device, adopt the vapour-liquid heat exchanger, come supercooled liquid working medium, both improved the reliability of compressor, can improve refrigerating efficiency again with the residue cold of steam.
Vapour liquid separator has been adopted in steam generator outlet at thermal engine, is used for separating start-up course from the liquid refrigerant that steam generator flows out, and avoids liquid refrigerant to flow into turbine, improves reliability of system operation.
Thermal engine working medium pump and refrigeration machine expander be independent operating as required, and in this case, the circulating pump of thermal engine is driven by independent motor, and the expander of refrigeration machine is replaced by the choke valve of routine.
Refrigeration and generating integration device that heat energy drives are made up of thermal engine and refrigeration machine, and thermal engine and being connected of refrigeration machine are: the expander output shaft in the refrigeration machine is connected with circulating pump power shaft in the thermal engine; The second vapour-liquid heat exchanger venthole in the refrigeration machine is connected with the pressure exchanger low pressure inlet; The pressure exchanger high-pressure outlet is connected with the second condenser gaseous working medium import in the refrigeration machine; Reheater gaseous working medium outlet in the thermal engine is connected with pressure exchanger high-pressure admission mouth, and the pressure exchanger low tension outlet connects the first vapour-liquid heat exchanger air intake in the thermal engine.
Thermal engine adopts the organic working medium Rankine cycle; Comprise steam generator, vapour liquid separator, two-way valve, triple valve, turbine, generator, pressure exchanger, first condenser, interflow device, reservoir, circulating pump, the first vapour-liquid heat exchanger, reheater, wherein: the outlet of steam generator gaseous working medium connects the vapour liquid separator inlet; The outlet of vapour liquid separator liquid refrigerant connects the two-way valve import; The outlet of vapour liquid separator gaseous working medium connects the triple valve import, and triple valve first outlet connects the turbine import, and the turbine output shaft is connected with the generator power shaft is coaxial; The outlet of turbine gaseous working medium connects the import of reheater gaseous working medium; Get into the high-pressure admission mouth of pressure exchanger after the vapor mixing of outlet of reheater gaseous working medium and triple valve second outlet, the pressure exchanger low tension outlet connects the first vapour-liquid heat exchanger air intake, and the first vapour-liquid heat exchanger venthole connects the first condenser gaseous working medium import; The liquid refrigerant outlet of first condenser connects the inlet of interflow device; The two-way valve outlet connects the inlet of interflow device, and interflow device outlet connects the reservoir import, and the reservoir outlet connects pump entry; Pump discharge connects the inlet of the first vapour-liquid heat exchanger, and the liquid outlet of the first vapour-liquid heat exchanger connects the import of steam generator.
Refrigeration machine comprises pressure exchanger, the second vapour-liquid heat exchanger, second condenser, evaporimeter, expander, reheater, heat exchanger; Expansion valve, compressor, wherein: the outlet of evaporimeter gaseous working medium connects the second vapour-liquid heat exchanger air intake; The second vapour-liquid heat exchanger venthole connects the low pressure inlet of pressure exchanger; The high-pressure outlet of pressure exchanger connects the second condenser gaseous working medium import, and the outlet of the second condenser liquid refrigerant connects the second vapour-liquid heat exchanger inlet, and the second vapour-liquid heat exchanger liquid outlet connects the expander inlet; The expander sender property outlet connects the import of evaporimeter working medium, and the expander output shaft is connected with the circulating pump power shaft is coaxial; The heat source side import of steam generator and reheater is connected with external heat source; The heat source side outlet turns back to external heat source and is recycled heating; First condenser and the second condenser condenses water condensation water that comes from the outside; First condenser (8) and the return condensed water source of the second condenser condenses water out, the chilled water gateway of evaporimeter links to each other with air conditioning terminal.
When the heat energy temperature of supplying with steam generator more than 100 ℃ the time; Device not only generates electricity but also freeze; This moment, the connection of thermal engine part was: the outlet of steam generator gaseous working medium connects the vapour liquid separator inlet, and the outlet of vapour liquid separator liquid refrigerant connects the two-way valve import, and the outlet of vapour liquid separator gaseous working medium connects the triple valve import; Triple valve first outlet connects the turbine import, passes through
Flat output shaft is connected with the generator power shaft is coaxial.The outlet of turbine gaseous working medium connects the import of reheater gaseous working medium; Get into the high-pressure admission mouth of pressure exchanger after the vapor mixing of outlet of reheater gaseous working medium and triple valve second outlet; The pressure exchanger low tension outlet connects the first vapour-liquid heat exchanger air intake; The first vapour-liquid heat exchanger venthole connects the first condenser gaseous working medium import, and the liquid refrigerant outlet of first condenser connects the inlet of interflow device, and the outlet of two-way valve connects the inlet of interflow device; Interflow device outlet connects the reservoir import; The reservoir outlet connects the inlet of pump, and pump discharge connects the inlet of the first vapour-liquid heat exchanger, and the liquid outlet of the first vapour-liquid heat exchanger connects the import of steam generator; The connection of refrigeration machine is: the outlet of evaporimeter gaseous working medium connects the second vapour-liquid heat exchanger) air intake; The second vapour-liquid heat exchanger venthole connects the low pressure inlet of pressure exchanger; The high-pressure outlet of pressure exchanger connects the second condenser gaseous working medium import; The outlet of the second condenser liquid refrigerant connects the second vapour-liquid heat exchanger inlet; The second vapour-liquid heat exchanger liquid outlet connects the expander inlet, and the expander liquid outlet connects the import of evaporimeter liquid refrigerant, and the expander output shaft is connected with the circulating pump power shaft is coaxial.The heat source side import of steam generator and reheater is connected with external heat source; The heat source side outlet turns back to external heat source and is recycled heating; First condenser is connected with extraneous water supply pipe with the second condenser condenses water side entrance; First condenser and the second condenser condenses water side outlet directly discharge, and the chilled water side entrance of evaporimeter connects the air conditioning terminal outlet, and the chilled water side outlet connects the air conditioning terminal import.
When the heat energy grade is low, for example be lower than 100 ℃, only output refrigeration of device; It is top said not only the refrigeration but also a kind of simplification that TRT connects that device connects; Remove triple valve, turbine, generator, the expander output shaft is connected with the water pump power shaft is no longer coaxial, and expander is replaced by expansion valve.Not only freezed but also the TRT connected mode is compared with above-mentioned; Different connections are: the venthole of vapour liquid separator directly connects the high-pressure admission mouth of pressure exchanger; The second vapour-liquid heat exchanger liquid outlet connects the expansion valve inlet; The expansion valve liquid outlet connects the import of evaporimeter liquid refrigerant, and other part connection does not change.
When the user need provide the domestic hot-water; Install externally hot and cold, electric three alliances, its device is said in the above not only freezed but also TRT connects under the constant situation, increases heat exchanger; Connection is: extraneous water supply pipe connects first condenser and the second condenser condenses water side entrance respectively; First condenser is connected the import of heat exchanger water at low temperature with the second condenser condenses water side outlet, and the outlet of heat exchanger high-temperature water outputs to the user, and the outlet of steam generator heat source side connects the import of heat exchanger heat source side; Heat exchanger heat source side outlet connects external heat source and is recycled heating, other part connect with above-mentioned not only freezed but also the connection of TRT identical.
Turbine, generator can be integrated with pressure exchanger; Its device is a kind of variation that the said in the above adopted TRT that both freezed connects; Its connection is: remove triple valve, reheater; The venthole of vapour liquid separator directly connects the turbine air intake, and the turbine venthole connects the first vapour-liquid heat exchanger air intake, coaxial connection generator of turbine and compressor.The second vapour-liquid heat exchanger venthole connects the low pressure inlet of compressor, and the high-pressure outlet of compressor connects the second condenser gaseous working medium import, and other part connection remains unchanged.
The thermal source of this device can adopt solar energy, geothermal energy, biomass energy, industrial exhaust heat or other low grade heat energy.Low-temperature receiver can adopt ground pipe laying recirculated water, surface water, air or other cooling medium.
Thermal engine and refrigeration machine can adopt working medium of the same race, also can adopt different working medium; Pure working medium can be adopted, also mixed working fluid can be adopted.Pure working medium can be selected for use but be not limited to: R22, R32, R123, R124, R125, R143a, R152a, R290, R717, R718, R134a, R142b, R227ea, R236fa, R245fa, R600a, R600, R1270.Mixed working fluid can adopt pure working medium to be configured according to different operating modes.For the practical applications of sensible heat heat supply and sensible heat condensation, adopt non-azeotropic mixed working medium, can improve thermal engine power output efficiency about 20%.
Beneficial effect:
(1) the present invention can satisfy the thermal source input of different temperatures and the requirement of different cryogenic temperatures, and the working medium type selecting of thermal engine and refrigeration machine can be unrestricted, distributes rationally.Thermal engine can be selected identical working medium for use with refrigeration machine, also can select different working medium for use, can select pure working medium for use, also can select mixed working fluid for use.
(2) the present invention can change the output setting of system according to the height of heat source temperature.When heat source temperature is higher than 100 ℃, two kinds of patterns of device running refrigerating and generating; When heat source temperature was lower than 100 ℃, the power of thermal engine can only satisfy refrigeration and drive, and can close generator, also can in design, select the separate refrigeration pattern for use.
(3) the present invention can be used to make distributed refrigeration, generating equipment.If heat source temperature is higher than 120 ℃, the draining that can utilize steam generator is carried out heat again to the cooling water of condenser, to produce the domestic hot-water about 50 ℃, so just can realize hot and cold, electric three alliances.Series of products are made in this invention, can satisfy from family, to the sub-district different power supplies, cooling, heat demand.
(4) the present invention adopts the non-azeotropic mixed working medium optimized Selection; Adopt working medium more than two yuan; Different temperatures characteristic to thermal engine and refrigeration machine is optimized type selecting respectively, adopts the heat exchanger of optimal design, can improve the coefficient of performance about 20% than pure working substance system.Practical applications for sensible heat condensation and sensible heat refrigeration adopts non-azeotropic mixed working medium, can improve refrigeration mechanism cold efficiency about 20%.The present invention can adopt water source as cooling medium, improves utilization efficiency of heat energy.
Description of drawings
The present invention supplies to have 4 accompanying drawings
Fig. 1: typical flowchart of the present invention, heat energy drives the combined unit of vapor-compression refrigerant cycle and generating;
Fig. 2: a kind of situation that the present invention comprises, the heat source temperature a kind of simplification device below 100 ℃ the time, thermal source drives thermal engine and produces high steam, and the direct driving pressure interchanger of high steam is refrigeration machine compression cycle working medium, and device is refrigeration only;
Fig. 3: a kind of situation that the present invention comprises, device is realized hot and cold, electric three alliances.At first flow through first condenser and second condenser of condensed water reclaims used heat, absorb the waste heat of thermal source discharge water again after, the domestic hot-water externally is provided.
Fig. 4: a kind of situation that the present invention comprises, turbine, generator can be integrated with pressure exchanger, and the turbine of supply generating is born the function of compression refigerating machine simultaneously for refrigeration machine, and device not only freezes but also generate electricity;
The practical implementation method
Among Fig. 1, device is made up of thermal engine and refrigeration machine two parts that heat energy drives.Thermal engine is by steam generator 1, vapour liquid separator 2, two-way valve 3, triple valve 4, turbine 5, generator 6, pressure exchanger 7, first condenser 8; Interflow device 9, reservoir 10, circulating pump 11, the first vapour-liquid heat exchanger 12, reheater 17 are formed; Connection is: the outlet of steam generator 1 gaseous working medium connects vapour liquid separator 2 inlets; Vapour liquid separator liquid refrigerant outlet 2b connects two-way valve 3 imports; Vapour liquid separator gaseous working medium outlet 2a connects triple valve 4 imports, and the triple valve first outlet 4a connects turbine 5 imports, turbine output shaft 5a and coaxial connection of generator 6 power shafts; Turbine gaseous working medium outlet 5b connects reheater 17 gaseous working medium imports; Get into the high-pressure admission mouth 7a of pressure exchanger after the vapor mixing of outlet of reheater 17 gaseous working mediums and the triple valve second outlet 4b, pressure exchanger low tension outlet 7b connects the first vapour-liquid heat exchanger air intake 12a, and the first vapour-liquid heat exchanger venthole 12b connects the 8 gaseous working medium imports of first condenser; The outlet of first condenser, 8 liquid refrigerants connects the inlet 9a of interflow device; The outlet of two-way valve 3 connects the inlet 9b of interflow device, and device 9 outlets in interflow connect reservoir 10 imports, and reservoir 10 outlets connect pump entry 11b; Pump 11 outlets connect the inlet 12c of the first vapour-liquid heat exchanger, and the liquid outlet 12d of the first vapour-liquid heat exchanger connects the import of steam generator 1.
At first from steam generator 1 beginning, here the heat of thermal source is passed to the thermal engine cycle fluid in the operation of thermal engine, produces superheated steam and flows out steam generator; Get into vapour liquid separator 2; Starting moment, what get into vapour liquid separator possibly comprise operative liquid working medium, uses vapour liquid separator that liquid refrigerant is separated; Through two-way valve 3, in the device 9 of interflow, join with the liquid refrigerant that condenser comes out.The superheated steam that comes out from vapour liquid separator gets into triple valve 4, according to height decision whether startup TRT of heat source temperature.If heat source temperature is higher than 100 ℃, triple valve is transported to turbine 5 with superheated steam, drives generator 6 generatings, and steam leaves the reheater 17 of flowing through earlier behind the turbine increases the degrees of superheat, and then input pressure interchanger 7.If heat source temperature is lower than 100 ℃, triple valve directly flows to pressure exchanger 7 with superheated steam.In pressure exchanger 7, the high steam of thermal engine passes to refrigeration machine working medium with pressure energy, the decompressional expansion of thermal engine working medium, and refrigeration machine working medium is boosted.The low-pressure steam that flows out from pressure exchanger 7 with waste heat preheating liquid refrigerant, reduces the load of first condenser 8 simultaneously the first vapour-liquid heat exchanger 12.Low-pressure steam condenses into liquid in first condenser 8, in the device 9 of interflow, mix input reservoir 10 with the working medium that vapour liquid separator is come.Circulating pump 11 boosts to boiling pressure with the low pressure liquid working medium in the reservoir, and working medium gets into 12 preheatings of first heat exchanger once more, gets into steam generator 1 and continues circulation.
Refrigeration machine is by pressure exchanger 7, the second vapour-liquid heat exchanger 13, second condenser 14, evaporimeter 15, expander 16, reheater 17; Heat exchanger 18; Expansion valve 19, compressor 20 is formed, and connection is: the outlet of evaporimeter 15 gaseous working mediums connects the second vapour-liquid heat exchanger air intake 13a; The second vapour-liquid heat exchanger venthole 13b connects the low pressure inlet 7c of pressure exchanger; The high-pressure outlet 7d of pressure exchanger connects the 14 gaseous working medium imports of second condenser, and the outlet of second condenser, 14 liquid refrigerants connects the second vapour-liquid heat exchanger inlet 13c, and the second vapour-liquid heat exchanger liquid outlet 13d connects expander 16 inlets; Expander sender property outlet 16b connects evaporimeter 15 working medium imports, expander output shaft 16a and coaxial connection of circulating pump power shaft 11a; The heat source side import of steam generator 1 and reheater 17 is connected with external heat source; The heat source side outlet turns back to external heat source and is recycled heating; First condenser 8 and second condenser, the 14 condensed waters condensation water that comes from the outside; First condenser 8 and the return condensed water source of second condenser, 14 condensation-water drains, the chilled water gateway of evaporimeter 15 links to each other with air conditioning terminal.
The operation of refrigeration machine is from evaporimeter 15 beginnings, and here liquid refrigerant becomes gaseous state, absorbs heat in the expansion process, realizes refrigeration.The low-pressure steam that comes out from evaporimeter carried out cold to the liquid refrigerant that second condenser 14 comes out the second vapour-liquid heat exchanger 13; Both improved the Energy Efficiency Ratio of system; Obtain the degree of superheat about 5K before guaranteeing to get into compression again, improve the stability and the reliability of compression process.Cold-producing medium is compressed into middle pressure steam by the high steam of thermal engine in pressure exchanger 7; Send into second condenser 14 and be condensed into middle press liquid; The second vapour-liquid heat exchanger 13 of flowing through increases degree of supercooling; Get into the low pressure working fluid that adiabatic expansion in the expander 16 becomes to contain small amount of steam then, get into evaporimeter 15 absorption refrigerations.
The basic progress control method of system is as shown in Figure 5:
Fig. 2 is the simplification device that is lower than 100 ℃ low-grade heat source to temperature; Heat energy only supplies to drive kind of refrigeration cycle, compares with Fig. 1, has removed triple valve 4, turbine 5, generator 6; Expander 16 output shafts are connected with the water pump power shaft is no longer coaxial, and expander 16 is replaced by expansion valve 19.Its connection is: the venthole 2a of vapour liquid separator directly connects the high-pressure admission mouth 7a of pressure exchanger; The second vapour-liquid heat exchanger liquid outlet 13d connects expansion valve 19 inlets; Expansion valve 19 liquid outlets connect evaporimeter 15 liquid refrigerant imports, and other part connects identical with Fig. 1.
Fig. 3 is a kind of variation of Fig. 1; This device reclaims the used heat of first condenser 8 and second condenser 14; And utilize waste heat further condensed water that heats from first condenser 8 and second condenser 14 heat exchanger 18 of discharging heat source fluid from steam generator, productive life hot water is realized hot and cold, electric three alliances; Compared to Figure 1; Increased heat exchanger 18, its connection is: extraneous water supply pipe connects first condenser 8 and second condenser, 14 condensed water side entrances respectively, and first condenser 8 is connected heat exchanger water at low temperature import 18c with second condenser, 14 condensed water side outlets; Heat exchanger high-temperature water outlet 18d outputs to the user; The outlet of steam generator 1 heat source side connects heat exchanger heat source side import 18a, and heat exchanger heat source side outlet 18b connects external heat source and is recycled heating, and other part connects identical with Fig. 1.
Fig. 4 is a kind of variation of Fig. 1; With turbine generator and being made of one of pressure exchanger; Adopt turbine 5, coaxial connection compressor 20 and generator 6, the steam driven turbine acting that thermal engine produces; Part mechanical energy is used for the cycle fluid of compression refigerating machine, residue mechanical energy output generating.Compared to Figure 1, remove triple valve 4, reheater 17, its connection is: the venthole 2a of vapour liquid separator directly connects turbine air intake 5a, and turbine venthole 5b connects the first vapour-liquid heat exchanger air intake 12a, turbine 5 coaxial connection generators 6 and compressor 20; The second vapour-liquid heat exchanger venthole 13b connects the low pressure inlet of compressor 20, and the high-pressure outlet of compressor 20 connects the 14 gaseous working medium imports of second condenser, and other part connects identical with Fig. 1.
Claims (1)
1. the refrigeration and the generating integration device that drive of a heat energy, it is made up of thermal engine and refrigeration machine, and thermal engine and being connected of refrigeration machine are: the expander output shaft (16a) in the refrigeration machine is connected with circulating pump power shaft (11a) in the thermal engine; The second vapour-liquid heat exchanger venthole (13b) in the refrigeration machine is connected with pressure exchanger low pressure inlet (7c); Pressure exchanger high-pressure outlet (7d) is connected with second condenser (14) gaseous working medium import in the refrigeration machine; The outlet of reheater in the thermal engine (17) gaseous working medium is connected with pressure exchanger high-pressure admission mouth (7a), and pressure exchanger low tension outlet (7b) connects the first vapour-liquid heat exchanger air intake (12a) in the thermal engine;
Thermal engine adopts the organic working medium Rankine cycle; Comprise steam generator (1), vapour liquid separator (2), two-way valve (3), triple valve (4), turbine (5), generator (6), said pressure exchanger (7), first condenser (8); Interflow device (9), reservoir (10), circulating pump (11), the first vapour-liquid heat exchanger (12), reheater (17); Wherein: the outlet of steam generator (1) gaseous working medium connects vapour liquid separator (2) inlet; Vapour liquid separator liquid refrigerant outlet (2b) connects two-way valve (3) import; Vapour liquid separator gaseous working medium outlet (2a) connects triple valve (4) import, and triple valve first outlet (4a) connects turbine (5) import, turbine output shaft (5a) and generator (6) the coaxial connection of power shaft; Turbine gaseous working medium outlet (5b) connects reheater (17) gaseous working medium import; Get into the high-pressure admission mouth (7a) of pressure exchanger after the vapor mixing of outlet of reheater (17) gaseous working medium and triple valve second outlet (4b), pressure exchanger low tension outlet (7b) connects the first vapour-liquid heat exchanger air intake (12a), and the first vapour-liquid heat exchanger venthole (12b) connects first condenser (8) gaseous working medium import; The liquid refrigerant outlet of first condenser (8) connects the inlet (9a) of interflow device; Two-way valve (3) outlet connects the inlet (9b) of interflow device, and interflow device (9) outlet connects reservoir (10) import, and reservoir (10) outlet connects pump entry (11b); Pump (11) outlet connects the inlet (12c) of the first vapour-liquid heat exchanger, and the liquid outlet of the first vapour-liquid heat exchanger (12d) connects the import of steam generator (1);
Refrigeration machine comprises said pressure exchanger (7), the second vapour-liquid heat exchanger (13), second condenser (14), evaporimeter (15), expander (16); Reheater (17); Heat exchanger (18); Expansion valve (19), compressor (20), wherein: the outlet of evaporimeter (15) gaseous working medium connects the second vapour-liquid heat exchanger air intake (13a); The second vapour-liquid heat exchanger venthole (13b) connects the low pressure inlet (7c) of said pressure exchanger; The high-pressure outlet of said pressure exchanger (7d) connects second condenser (14) gaseous working medium import, and the outlet of second condenser (14) liquid refrigerant connects the second vapour-liquid heat exchanger inlet (13c), and the second vapour-liquid heat exchanger liquid outlet (13d) connects expander (16) inlet; Expander sender property outlet (16b) connects evaporimeter (15) working medium import, expander output shaft (16a) and coaxial connection of circulating pump power shaft (11a); Steam generator (1) is connected with external heat source with the heat source side import of reheater (17); The heat source side outlet turns back to external heat source and is recycled heating; First condenser (8) and second condenser (14) the condensed water condensation water that comes from the outside; First condenser (8) and the return condensed water source of second condenser (14) condensation-water drain, the chilled water gateway of evaporimeter (15) links to each other with air conditioning terminal.
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| CN2009100291326A CN101458000B (en) | 2009-01-06 | 2009-01-06 | Heat-driven refrigeration and power generation integration apparatus |
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| CN2009100291326A CN101458000B (en) | 2009-01-06 | 2009-01-06 | Heat-driven refrigeration and power generation integration apparatus |
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2009
- 2009-01-06 CN CN2009100291326A patent/CN101458000B/en not_active Expired - Fee Related
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