CN104373166A - Dual-working-medium circulation power generation system having heat dissipating and recycling functions - Google Patents
Dual-working-medium circulation power generation system having heat dissipating and recycling functions Download PDFInfo
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- CN104373166A CN104373166A CN201410568474.6A CN201410568474A CN104373166A CN 104373166 A CN104373166 A CN 104373166A CN 201410568474 A CN201410568474 A CN 201410568474A CN 104373166 A CN104373166 A CN 104373166A
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- absorption refrigerator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The invention provides a dual-working-medium circulation power generation system having heat dissipating and recycling functions. The dual-working-medium circulation power generation system having the heat dissipating and recycling functions comprises a steam generator, an expansion machine, a power generator, an absorption refrigeration machine and a working medium pump. The steam generator is used for heating a working medium through waste heat, and converting the working medium into high-pressure steam so that the steam can enter the expansion machine. The expansion machine is used for working under driving of the high-pressure steam. The power generator is coaxially connected with the expansion machine and generates electricity under the drive of the expansion machine. An evaporator of the absorption refrigeration machine serves as a condenser in the dual-working-medium circulation power generation system and is used for cooling low-pressure steam working medium discharged by the expansion machine into a liquid working medium. The working medium pump is used for conveying the liquid working medium discharged from the evaporator of the absorption refrigeration machine to the steam generator. Due to the fact that the evaporator of the absorption refrigeration machine serves as the condenser in the dual-working-medium circulation power generation system and cools the low-pressure steam working medium discharged by the expansion machine into the liquid working medium, a cooling tower, a cooling water pipe, a cooling water pump and other devices are omitted, space is saved, device cost is reduced, and water resources are saved.
Description
Technical field
The present invention relates to and utilize waste-heat power generation technical field, particularly a kind of double-work medium cycle generating system with loose heat recovery function.
Background technique
At present, the double-work medium cycle generating system being carried out utilizing by the used heat in factory is more common, such as, utilizes the used heat, underground heat etc. of the used heat of fume emission, hot water emission, lower boiling working medium is evaporated, to drive decompressor and electrical power generators.
See Fig. 1, this figure is double-work medium cycle generating system schematic diagram of the prior art.
The meaning of the label representative in Fig. 1 is as follows:
1, steam generator; 2, decompressor; 3, generator; 4, condenser; 5, cooling tower; 6, cooling waterpump; 7, working medium pump.
Used heat w1 enters steam generator 1, and used heat w1 heats working medium.The steam of High Temperature High Pressure is become by the working medium after heating.The steam of High Temperature High Pressure arrives decompressor 2, is worked by pressure differential decompressor 2, drives simultaneously and generates electricity with the coaxial generator 3 be connected of decompressor 2.
Enter condenser 4 from the working medium of decompressor 2 low pressure steam out, the cooling medium w2 in cooling tower 5 is transported to condenser 4 by cooling waterpump 6.As can be seen from Figure 1, need between cooling tower 5 with condenser 4 to be connected by cooling water pipe.
Working medium cooled medium w2 cooling in condenser 4 of low pressure steam becomes liquid refrigerant.Be sent to steam generator 1 from condenser 4 liquid refrigerant out by working medium pump 7, a so far circulation terminates.
Condenser 4 of the prior art is indirect contact, and need the heat exchange temperature difference, heat exchange efficiency is lower.And the heat radiation of condenser 4 is directly released in air, the energy of heat radiation can not be effectively used.In addition, condenser inside employs a lot of heat-transfer pipe, causes the price of condenser higher.This condensing plant comprises condenser, cooling tower, cooling waterpump and cooling water pipe, and volume is large, and cost is high.The long-term circulating and evaporating amount of cooling water is large, needs to consume a large amount of water resourcess.
Therefore, those skilled in the art need to provide a kind of double-work medium cycle generating system with loose heat recovery function, effectively can reclaim the heat radiation of power generation system, thus improve heat exchange efficiency.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of double-work medium cycle generating system with loose heat recovery function, can reclaim the heat radiation of power generation system, thus improves heat exchange efficiency.
The present embodiment provides a kind of double-work medium cycle generating system with loose heat recovery function, comprising: steam generator, decompressor, generator, absorption refrigerator and working medium pump;
Described steam generator, for being heated working medium by used heat, being become high pressure steam by described working medium and entering described decompressor;
Described decompressor, for working under the driving of described high pressure steam;
Described generator, is coaxially connected with described decompressor, generates electricity under the driving of described decompressor;
The vaporizer of described absorption refrigerator, as the condenser in this double-work medium cycle generating system, is cooled to liquid refrigerant for the low pressure steam working medium of being discharged by described decompressor;
Described working medium pump, is delivered to described steam generator for the liquid refrigerant of being discharged by the vaporizer from described absorption refrigerator.
Preferably, heat-transfer pipe is comprised in the vaporizer of described absorption refrigerator;
The low pressure steam working medium that described decompressor is discharged enters in the heat-transfer pipe of described vaporizer, in described vaporizer, be cooled to liquid refrigerant.
Preferably, the liquid refrigerant that described vaporizer is discharged enters the adsorber/condenser of described absorption refrigerator after described working medium pump;
Described adsorber/condenser, for being supplied to described steam generator by after described liquid refrigerant heating.
Preferably, the preheating heat exchanger be arranged between described working medium pump and described steam generator is also comprised; Heat eliminating medium loop is set between described preheating heat exchanger and described absorption refrigerator;
Described preheating heat exchanger, is supplied to described steam generator after the liquid refrigerant for being discharged by described working medium pump heats;
Described preheating heat exchanger is heated by the adsorber/condenser of described absorption refrigerator by described heat eliminating medium loop.
Preferably, described heat eliminating medium loop arranges side loop; Described heat eliminating medium loop is provided with first group of valve, described side loop is arranged second group of valve;
Described first group of valve open, when described second group of valve turns off, described preheating heat exchanger and described absorption refrigerator carry out heat exchange by described heat eliminating medium loop;
Or described first group of valve turns off, and during described second group of valve open, described absorption refrigerator carries out heat exchange by described side loop and heating load;
Or described first group of valve open, when described second group of valve is also opened, described absorption refrigerator carries out heat exchange with described preheating heat exchanger and described heating load carries out heat exchange simultaneously.
Preferably, described used heat is also for the driving heat source as described absorption refrigerator.
Preferably, described used heat also for the driving heat source as described absorption refrigerator, is specially:
Described used heat is out connected from described steam generator later and is entered the regenerator of described absorption refrigerator.
Preferably, described used heat also for the driving heat source as described absorption refrigerator, is specially:
Described used heat enters in the regenerator of described steam generator and described absorption refrigerator with parallel form.
Preferably, described steam generator is falling film type steam generator.
Compared with prior art, the present invention has the following advantages:
The double-work medium cycle generating system that the present embodiment provides, the low pressure steam working medium that decompressor is discharged directly enters the vaporizer of absorption refrigerator, the low pressure steam working medium that decompressor is discharged, as the condenser in double-work medium cycle generating system, is cooled to liquid refrigerant by vaporizer.This eliminate the equipment such as cooling tower of the prior art, cooling water pipe, cooling waterpump, save space and equipment cost, and save a large amount of water resourcess.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is double-work medium cycle generating system schematic diagram of the prior art;
Fig. 2 is double-work medium cycle generating system embodiment one schematic diagram with loose heat recovery function provided by the invention;
Fig. 3 is double-work medium cycle generating system embodiment three schematic diagram with loose heat recovery function provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Embodiment one:
See Fig. 2, this figure is double-work medium cycle generating system embodiment one schematic diagram with loose heat recovery function provided by the invention.
The double-work medium cycle generating system of what the present embodiment provided have loose heat recovery function, comprising: steam generator 1, decompressor 2, generator 3, absorption refrigerator 8 and working medium pump 7;
Described steam generator 1, for being heated working medium by used heat w1, being become high pressure steam and entering described decompressor 2 by described working medium;
As shown in Figure 2, steam generator 1 can be falling film type steam generator, and used heat w1 enters in the coiled pipe of falling film type steam generator, and used heat w1 gives the working medium sprayed from spray equipment 1a heating.Become high pressure steam by the working medium heated, arrive decompressor 2, by pressure differential decompressor 2.
Be understandable that, steam generator 1 also can be full-liquid type steam generator.
Described decompressor 2, for working under the driving of described high pressure steam;
Decompressor 2 in the present embodiment, comprises sensu lato decompressor of turbo-expander, screw expander, scroll expander etc.
Described generator 3, is coaxially connected with described decompressor 2, generates electricity under the driving of described decompressor 2;
The vaporizer E of described absorption refrigerator 8, as the condenser in this double-work medium cycle generating system, is cooled to liquid refrigerant for the low pressure steam working medium of being discharged by described decompressor 2;
Be understandable that, absorption refrigerator is also called absorption heat pump.
The structure of the absorption refrigerator 8 of such standard can be changed, and directly uses in this double-work medium cycle generating system.
Described working medium pump 7, is delivered to described steam generator 1 for the liquid refrigerant of being discharged by the vaporizer E from described absorption refrigerator 8.
The double-work medium cycle generating system that the present embodiment provides, the low pressure steam working medium that decompressor 2 is discharged directly enters the vaporizer of absorption refrigerator, the low pressure steam working medium that decompressor is discharged, as the condenser in double-work medium cycle generating system, is cooled to liquid refrigerant by vaporizer.This eliminate the equipment such as cooling tower of the prior art, cooling water pipe, cooling waterpump, save space and equipment cost, and save a large amount of water resourcess.
Embodiment two:
Continue see Fig. 2.
Heat-transfer pipe is comprised in the vaporizer E of described absorption refrigerator 8;
The low pressure steam working medium that described decompressor 2 is discharged enters in the heat-transfer pipe of described vaporizer E, in described vaporizer E, be cooled to liquid refrigerant.
The liquid refrigerant that described vaporizer E discharges enters the adsorber/condenser A/C of described absorption refrigerator 8 after described working medium pump 7;
Described adsorber/condenser A/C, for being supplied to described steam generator 1 by after described liquid refrigerant heating.
Be understandable that, adsorber/condenser A/C can heat for liquid refrigerant as the radiating segment of absorption refrigerator 8.Effectively can utilize the heat radiation of absorption refrigerator like this, thus improve the working efficiency of whole system.
Described used heat w1 is also for the driving heat source as described absorption refrigerator 8, and as shown in the figure, w1 enters in the regenerator G of absorption refrigerator 8.
When described used heat w1 measures few, w1 out connects from described steam generator 1 later and enters the regenerator G of described absorption refrigerator 8.
When described w1 amount is more, described used heat w1 enters in the regenerator G of described steam generator 1 and described absorption refrigerator 8 with parallel form.
The heat that adsorber/condenser A/C sheds is about absorption refrigerator 8 reclaims heat from used heat w1 about 1.7 times.In order to make full use of this part heat, the liquid refrigerant of being discharged by working medium pump 7 is directly supplied to adsorber/condenser A/C, then out entered steam generator 1 by the working medium after heating from adsorber/condenser A/C, so also can save cost, economic performance is better.In addition, utilize the heat radiation of absorption refrigerator to heat to liquid refrigerant, the working efficiency of system can be improved.
In addition, by measuring the temperature of the liquid refrigerant of steam generator 1 entrance, the revolution of controlled medium pump 7 can be carried out thus the circulating load of controlled medium.
Embodiment three:
See Fig. 3, this figure is double-work medium cycle generating system embodiment three schematic diagram with loose heat recovery function provided by the invention.
Be that preheating heat exchanger is not set in embodiment two, and introduce working principle when preheating heat exchanger is set in the present embodiment.
In the present embodiment, double-work medium cycle generating system also comprises the preheating heat exchanger 9 be arranged between described working medium pump 7 and described steam generator 1; Between described preheating heat exchanger 9 and described absorption refrigerator 8, heat eliminating medium loop is set; As shown in Figure 3, heat transferring medium is w3.
Described preheating heat exchanger 9, is supplied to described steam generator 1 after the liquid refrigerant for being discharged by described working medium pump 7 heats;
Described preheating heat exchanger 9 is heated by the adsorber of described absorption refrigerator 8/condenser A/C by described heat eliminating medium loop.
The heat that i.e. adsorber/condenser A/C sheds is preheated heat exchanger 9 by w3 and utilizes, and preheating heat exchanger 9 is used for heating to liquid refrigerant.
Described heat eliminating medium loop arranges side loop; Described heat eliminating medium loop is provided with first group of valve V1 and V2, described side loop is arranged second group of valve V3 and V4;
Described first group of valve V1 and V2 opens, and when described second group of valve V3 and V4 turns off, described preheating heat exchanger 9 carries out heat exchange with described absorption refrigerator 8 by described heat eliminating medium loop;
Or described first group of valve V1 and V2 turns off, when described second group of valve V3 and V4 opens, described absorption refrigerator 8 carries out heat exchange by described side loop and heating load 10;
Or described first group of valve V1 and V2 opens, when described second group of valve V3 and V4 also opens, described absorption refrigerator 8 carries out heat exchange with described preheating heat exchanger 9 simultaneously and described heating load 10 carries out heat exchange.
Be understandable that, heating load 10 may be thought of as the purposes such as heating purposes, feedwater heating.
After being provided with heating load, while realization generating, also can provide heating function for other equipment, thus the application convenience of double-work medium cycle generating system is improved.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (9)
1. there is a double-work medium cycle generating system for loose heat recovery function, it is characterized in that, comprising: steam generator, decompressor, generator, absorption refrigerator and working medium pump;
Described steam generator, for being heated working medium by used heat, being become high pressure steam by described working medium and entering described decompressor;
Described decompressor, for working under the driving of described high pressure steam;
Described generator, is coaxially connected with described decompressor, generates electricity under the driving of described decompressor;
The vaporizer of described absorption refrigerator, as the condenser in this double-work medium cycle generating system, is cooled to liquid refrigerant for the low pressure steam working medium of being discharged by described decompressor;
Described working medium pump, is delivered to described steam generator for the liquid refrigerant of being discharged by the vaporizer from described absorption refrigerator.
2. the double-work medium cycle generating system with loose heat recovery function according to claim 1, is characterized in that, comprise heat-transfer pipe in the vaporizer of described absorption refrigerator;
The low pressure steam working medium that described decompressor is discharged enters in the heat-transfer pipe of described vaporizer, in described vaporizer, be cooled to liquid refrigerant.
3. the double-work medium cycle generating system with loose heat recovery function according to claim 1 and 2, is characterized in that, the liquid refrigerant that described vaporizer is discharged enters the adsorber/condenser of described absorption refrigerator after described working medium pump;
Described adsorber/condenser, for being supplied to described steam generator by after described liquid refrigerant heating.
4. the double-work medium cycle generating system with loose heat recovery function according to claim 1 and 2, is characterized in that, also comprise the preheating heat exchanger be arranged between described working medium pump and described steam generator; Heat eliminating medium loop is set between described preheating heat exchanger and described absorption refrigerator;
Described preheating heat exchanger, is supplied to described steam generator after the liquid refrigerant for being discharged by described working medium pump heats;
Described preheating heat exchanger is heated by the adsorber/condenser of described absorption refrigerator by described heat eliminating medium loop.
5. the double-work medium cycle generating system with loose heat recovery function according to claim 4, is characterized in that, described heat eliminating medium loop arranges side loop; Described heat eliminating medium loop is provided with first group of valve, described side loop is arranged second group of valve;
Described first group of valve open, when described second group of valve turns off, described preheating heat exchanger and described absorption refrigerator carry out heat exchange by described heat eliminating medium loop;
Or described first group of valve turns off, and during described second group of valve open, described absorption refrigerator carries out heat exchange by described side loop and heating load;
Or described first group of valve open, when described second group of valve is also opened, described absorption refrigerator carries out heat exchange with described preheating heat exchanger and described heating load carries out heat exchange simultaneously.
6. the double-work medium cycle generating system with loose heat recovery function according to claim 5, is characterized in that, described used heat is also for the driving heat source as described absorption refrigerator.
7. the double-work medium cycle generating system with loose heat recovery function according to claim 6, it is characterized in that, described used heat also for the driving heat source as described absorption refrigerator, is specially:
Described used heat is out connected from described steam generator later and is entered the regenerator of described absorption refrigerator.
8. the double-work medium cycle generating system with loose heat recovery function according to claim 6, it is characterized in that, described used heat also for the driving heat source as described absorption refrigerator, is specially:
Described used heat enters in the regenerator of described steam generator and described absorption refrigerator with parallel form.
9. the double-work medium cycle generating system with loose heat recovery function according to claim 1, is characterized in that, described steam generator is falling film type steam generator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410568474.6A CN104373166A (en) | 2014-10-22 | 2014-10-22 | Dual-working-medium circulation power generation system having heat dissipating and recycling functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410568474.6A CN104373166A (en) | 2014-10-22 | 2014-10-22 | Dual-working-medium circulation power generation system having heat dissipating and recycling functions |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805886A (en) * | 2019-11-13 | 2020-02-18 | 上海齐耀膨胀机有限公司 | Hot water waste heat recovery system using absorption heat pump and method for recovering hot water waste heat |
| CN111947343A (en) * | 2020-07-20 | 2020-11-17 | 武汉理工大学 | Combined cooling and power generation system |
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Application publication date: 20150225 |