CN101520253A - Adsorption type low temperature heat resource power generation and refrigeration method - Google Patents
Adsorption type low temperature heat resource power generation and refrigeration method Download PDFInfo
- Publication number
- CN101520253A CN101520253A CN200910048242A CN200910048242A CN101520253A CN 101520253 A CN101520253 A CN 101520253A CN 200910048242 A CN200910048242 A CN 200910048242A CN 200910048242 A CN200910048242 A CN 200910048242A CN 101520253 A CN101520253 A CN 101520253A
- Authority
- CN
- China
- Prior art keywords
- working medium
- binary
- steam generator
- low temperature
- power generation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Abstract
The invention relates to an adsorption type low temperature heat resource power generation and refrigeration method in the technical field of energy. The method comprises the following steps that: various low temperature exhaust heat is taken as a system heat source to form a closed cycle system; a binary working medium is selected as a cycle working medium, and a low boiling point working medium in the binary working medium has volatility; a liquid binary working medium is sent into a vapor generator by a working medium pump for heating; the low boiling point working medium in the binary working medium is changed into a saturated state or an overheating state, pushes a turbine to rotate and drives a generating set to output electric power; other liquid working media in the vapor generator flow into an adsorption type refrigerator for releasing heat to realize refrigeration; the liquid working medium flowing out of the adsorption refrigerator is decompressed and throttled by a throttle valve to the working pressure of an absorber, and absorbs the low boiling point working medium flowing out of an outlet for the turbine in the absorber; and the binary working medium in the absorber reaches a working mode of an inlet of the working medium again under the cooling of cooling water so as to finish the circulation. Therefore, the method realizes the power generation and the refrigeration at the same time by utilizing the low temperature heat resource.
Description
Technical field
The present invention relates to a kind of method of refrigeration technology field, specifically is a kind of adsorption type low temperature heat resource power generation and refrigeration method.
Background technology
Statistics shows that the low temperature exhaust heat total amount below 350 ℃ accounts for about 50% of industrial heat production total amount.In actual applications, owing to lack effective recycling mode, most of low temperature exhaust heat directly is discharged in the environment, has so both wasted a large amount of energy, again surrounding environment has been constituted serious thermal pollution.Low temperature circulation low-temperature cogeneration technology is a kind of effective low temperature exhaust heat recoverying and utilizing method, it usually with organic matter working medium as carrier of energy, low grade heat energy is converted into electric energy.When heat source temperature was lower than 270 ℃, low temperature Rankine cycle working medium range of choice was wide, with strong points, and equipment requires simple relatively, compares with the steam Rankine cycle of routine, has higher energy utilization rate.
The absorption type refrigerating method is found in 1848 by Faraday at first.Be accompanied by the generation of energy crisis the seventies in 20th century, and adsorptive refrigeration technology is developed.After entering the nineties, problem and discharge of carbon dioxide greenhouse gas problem have caused increasing concern because freon damages the ozone layer, and research is further quickened about adsorptive refrigeration technology.At present, easy to operate by feat of its energy-conserving and environment-protective, advantage such as applied widely, adsorptive refrigeration technology has become a hot issue in the research of refrigeration educational circles.
Find through literature search prior art, Feng Xu etc. have delivered one piece of article that exercise question is " a kind of generating and cooling circulation " on " energy " magazine was rolled up 233-246 pages in 2000 the 25th, (Xu, F., Goswami, D.Y., and Bhagwat, S.S., 2000, " A Combined Power/CoolingCycle, " Energy, 25, pp.233-246.) this system combines low temperature Rankine cycle generation technology with sorption type refrigerating technology, select binary solution as working medium, low grade heat energy is converted into electric energy and cold is exported simultaneously, proposed new departure that a cover low grade heat energy is recycled.But there is certain deficiency in this technology: in process of refrigerastion, working medium does not undergo phase transition, and mainly rely on the working medium sensible heat to change and realize refrigeration, so refrigerating capacity has been subjected to certain restriction.
Summary of the invention
The objective of the invention is at deficiency of the prior art, propose a kind of adsorption type low temperature waste-heat power generation refrigerating method, be intended to rationally utilize cryogenic waste heat resource, improve the refrigeration performance of combined cooling and power system, simplied system structure promotes its practicability.
The present invention is achieved by the following technical solutions, the present invention includes following steps:
The first step, liquid binary working medium are added to be sent in the steam generator by working medium pump and heat.The present invention selects binary working medium as cycle fluid, and this binary working medium is made up of the working medium of two kinds of different boiling, and the working medium that its mid-boiling point is lower has volatility.
In second step, the thermal source in the steam generator can adopt solar energy, geothermal energy, biomass energy, or various low temperature exhaust heat.By after the thermal source heating, the volatile composition of low boiling reach capacity steam or superheated steam state flow out from the gaseous working medium outlet of steam generator binary working medium in steam generator, and liquid higher boiling working medium flows out from the liquid refrigerant outlet of steam generator.
In the 3rd step, the gas working medium that comes out from steam generator enters turbine, promotes the turbine acting, and is converted into electric energy output by generator.
In the 4th step, remaining liquid higher boiling working medium flows into adsorbent refrigerator in steam generator, the heat release in adsorbent refrigerator of liquid higher boiling working medium, and output cold.
In the 5th step, the liquid higher boiling working medium that adsorbent refrigerator flows out enters choke valve decompression throttling.
The 6th step, the gaseous state low boiling working fluid that the turbine outlet is flowed out is absorbed by the liquid higher boiling working medium that the choke valve outlet is flowed out in absorber, in the time of the cooling water heat release, become binary working medium, entering circulation utilizes again, thereby finish the whole circulation process, output when realizing system's electric weight and cold.
The present invention is with solar energy, geothermal energy, biomass energy, or various industrial exhaust heat is as thermal source, and cooling water can be provided by underground water, river, lake water or seawater, and with it as low-temperature receiver, form closed cycle system, export electric energy, cold to the user.In system work process, liquid binary working medium improves pressure via working medium pump, in generation device of steam, utilize the waste heat heating, in heating process, make the lower working medium of binary working medium mid-boiling point become saturated or the overheated gas state by means such as rectifying, overheated gas and then the rotation of promotion turbine, and the drive generating set is outwards exported electric work.Remaining liquid refrigerant is heated by waste heat equally in generation device of steam, and enters adsorbent refrigerator heat release generation cold.Liquid refrigerant in adsorbent refrigerator after the heat release reaches the absorber operating pressure through the choke valve decompression.The liquid working substance that the gas working medium of turbine outlet is flowed out by choke valve in absorber absorbs, and becomes binary working medium under the water quench effect again, and this binary working medium is improved pressure by working medium pump again, finishes circulation.In the whole circulation process, low-grade heat energy constantly is recovered utilization, and simultaneously, system constantly exports electric energy and cold to the user, thereby realizes utilizing low-temperature waste-heat power generation refrigerating.
The binary working medium of selecting among the present invention is made up of the non-azeotropic working medium of two kinds of different boiling, is gaseous state in order to ensure turbine outlet working medium, and low boiling working fluid should have volatility.Simultaneously, the operating temperature of steam generator should effectively be separated two kinds of components to be implemented in the heating process between the boiling point of working medium to two kinds of components.This binary working medium can be selected ammoniacal liquor or natural refrigerant, the mixture of freon etc.By regulating the electric cold ratio that each concentration of component in the binary working medium can regulating system.When low boiling component increased, system's electricity was cold than increasing, and when low boiling component reduced, system's cold ratio of electricity reduced.
The needed electric power of whole circulation process can be provided by system self, and the output of additional electrical energy and cold is arranged, and satisfies user's burden requirement.
Described steam generator operating temperature is under the steam generator operating pressure, between the boiling point of two kinds of working medium.
Compared with prior art, the present invention organically combines low temperature Rankine cycle power generation system same adsorption refrigeration system by a kind of binary working medium, has realized rationally utilizing low-grade energy, has satisfied the demand of user's electric weight and cold simultaneously.The present invention has not only proposed the novel low temperature exhaust heat recovery method of a cover, effectively raises the integral energy utilization rate in the waste heat recovery process, strengthened the refrigeration of system, and whole process is safe and reliable, clean environmental protection.
Description of drawings
Fig. 1 is an embodiment of the invention flow chart.
The specific embodiment
The present invention is described in detail below in conjunction with accompanying drawing: embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the system that present embodiment adopted is made up of the pipeline between parts such as working medium pump 1, steam generator 2, turbine 3, generator 4, absorber 5, adsorbent refrigerator 6, choke valve 7 and each parts.Wherein working medium pump 1 outlet links to each other with steam generator 2 working medium inlet, the outlet of steam generator 2 gaseous working mediums links to each other with turbine 3 working medium inlet, turbine 3 sender property outlets link to each other with absorber 5 gas working mediums inlet, turbine 3 main shafts link to each other with generator 4 main shafts, the outlet of steam generator 2 liquid working substances links to each other with adsorbent refrigerator 6 working medium inlet, adsorbent refrigerator 6 sender property outlets link to each other with choke valve 7 working medium inlet, choke valve 7 sender property outlets link to each other with absorber 5 liquid refrigerants inlet, and absorber 5 sender property outlets link to each other with working medium pump 1 working medium inlet.
Embodiment is that 50% ammoniacal liquor is example with mass concentration, adopts 120 ℃ of waste heat supply temperatures, steam generator evaporating pressure 20bar, absorber operating pressure 10bar, 20 ℃ of cooling water temperatures illustrate circulation process, and parameter related in the specific implementation process is not construed as limiting the present invention.
1. about 40 ℃ liquid ammonia-water mixture improves pressure to 20bar by working medium pump, sends in the steam generator and heats.
2. liquid ammonia-water mixture is heated to about 110 ℃, pressure 20bar by about 120 ℃ low temperature exhaust heat in steam generator.In heating process, ammonia becomes superheated steam and flows out from the gaseous working medium outlet of steam generator, and the remaining fluid polymorphic segment flows out from the liquid refrigerant outlet of steam generator.
3. the overheated ammonia that flows out from steam generator enters turbine, promotes turbine rotation acting and power output, and this power can be converted into electric power output by generator.Be reduced to 10bar through the ammonia pressure behind the turbine, in the ideal case, temperature can be reduced to 40 ℃, still is superheated steam.
4. the remaining fluid polymorphic segment working medium that flows out from steam generator enters adsorbent refrigerator, liquid refrigerant heat release in the absorption type refrigerating agent, and adsorbent refrigerator is externally exported cold.Adsorbent refrigerator sender property outlet temperature is about 60 ℃.
5. the liquid refrigerant of adsorbent refrigerator outflow is decompressed to 10bar through choke valve.
6. liquid refrigerant and the turbine outlet ammonia that flows out from choke valve enters the absorber, under water quench, the ammonia of turbine outlet is absorbed by the liquid refrigerant that choke valve flows out, again become the liquid ammoniacal liquor about 40 ℃, thereby finish the whole circulation process, output when realizing system's electric weight and cold.
This system combines the low temperature Rankine cycle with the absorption type refrigerating circulation, as carrier, can utilize solar energy with binary working medium, geothermal energy, and biomass energy, various industrial exhaust heats are as system heat sources.Realized exporting to the user simultaneously the purpose of electric weight and cold.
Claims (4)
1, a kind of adsorption type low temperature heat resource power generation and refrigeration method is characterized in that, may further comprise the steps:
The first step, liquid binary working medium are added to be sent in the steam generator by working medium pump and heat, and described binary working medium is made up of the working medium of two kinds of different boiling, and wherein low-boiling working medium has volatility;
Second step, binary working medium in steam generator by after the thermal source heating, the volatile composition of low boiling reach capacity steam or superheated steam state flow out from the gaseous working medium outlet of steam generator, and liquid higher boiling working medium flows out from the liquid refrigerant outlet of steam generator;
In the 3rd step, the gas working medium that comes out from steam generator enters turbine, promotes the turbine acting, and is converted into electric energy output by generator;
In the 4th step, remaining liquid higher boiling working medium flows into adsorbent refrigerator in steam generator, the heat release in adsorbent refrigerator of liquid higher boiling working medium, and output cold;
In the 5th step, the liquid higher boiling working medium that adsorbent refrigerator flows out enters choke valve decompression throttling;
The 6th step, the gaseous state low boiling working fluid that the turbine outlet is flowed out is absorbed by the liquid higher boiling working medium that the choke valve outlet is flowed out in absorber, in the time of the cooling water heat release, become binary working medium, entering circulation utilizes again, thereby finish the whole circulation process, output when realizing system's electric weight and cold.
2. adsorption type low temperature heat resource power generation and refrigeration method according to claim 1 is characterized in that, described binary working medium, realize the electric cold than regulating of system by regulating its concentration of component, when low boiling component increased, system's electricity was cold than increasing, when low boiling component reduced, system's cold ratio of electricity reduced.
3. adsorption type low temperature heat resource power generation and refrigeration method according to claim 1 is characterized in that, described steam generator operating temperature is under the steam generator operating pressure, between the boiling point of binary working medium.
4. according to claim 1 or 2 or 3 described adsorption type low temperature heat resource power generation and refrigeration methods, it is characterized in that described binary working medium is ammoniacal liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910048242A CN101520253A (en) | 2009-03-26 | 2009-03-26 | Adsorption type low temperature heat resource power generation and refrigeration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910048242A CN101520253A (en) | 2009-03-26 | 2009-03-26 | Adsorption type low temperature heat resource power generation and refrigeration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101520253A true CN101520253A (en) | 2009-09-02 |
Family
ID=41080979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910048242A Pending CN101520253A (en) | 2009-03-26 | 2009-03-26 | Adsorption type low temperature heat resource power generation and refrigeration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101520253A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012065296A1 (en) * | 2010-11-15 | 2012-05-24 | 思安新能源股份有限公司 | Absorption cooling and power co-supply circulation system and absorption cooling and power co-supply method |
| CN103075835A (en) * | 2013-01-25 | 2013-05-01 | 上海交通大学 | Novel absorption type refrigeration and power-generation combining device |
| CN104929708A (en) * | 2015-06-24 | 2015-09-23 | 张高佐 | Low-temperature heat source thermoelectricity conversion system and method by means of mixed component working media |
| CN109342581A (en) * | 2018-09-26 | 2019-02-15 | 上海交通大学 | A kind of adsorption system comprehensive performance analysing device and the analysis method based on the device |
-
2009
- 2009-03-26 CN CN200910048242A patent/CN101520253A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012065296A1 (en) * | 2010-11-15 | 2012-05-24 | 思安新能源股份有限公司 | Absorption cooling and power co-supply circulation system and absorption cooling and power co-supply method |
| CN103075835A (en) * | 2013-01-25 | 2013-05-01 | 上海交通大学 | Novel absorption type refrigeration and power-generation combining device |
| CN103075835B (en) * | 2013-01-25 | 2015-07-01 | 上海交通大学 | Novel absorption type refrigeration and power-generation combining device |
| CN104929708A (en) * | 2015-06-24 | 2015-09-23 | 张高佐 | Low-temperature heat source thermoelectricity conversion system and method by means of mixed component working media |
| WO2016206318A1 (en) * | 2015-06-24 | 2016-12-29 | 张高佐 | System and method utilizing mixed component working media for low temperature heat source thermoelectric conversion |
| TWI631272B (en) * | 2015-06-24 | 2018-08-01 | 張高佐 | Low-temperature heat source thermoelectricity conversion system and method by means of mixed component working media |
| CN109342581A (en) * | 2018-09-26 | 2019-02-15 | 上海交通大学 | A kind of adsorption system comprehensive performance analysing device and the analysis method based on the device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kordlar et al. | Exergeoconomic analysis and optimization of a novel cogeneration system producing power and refrigeration | |
| RU2599697C1 (en) | Complementary heat energy system using solar energy and biomass | |
| Liu et al. | A review of research on the closed thermodynamic cycles of ocean thermal energy conversion | |
| Chen et al. | Energy and exergy analysis of integrated system of ammonia–water Kalina–Rankine cycle | |
| CN105431685A (en) | System for producing heat source for heating or electricity using medium/low temperature waste heat and method for controlling same | |
| CN100533004C (en) | High-efficiency low-temperature absorptive refrigerating machine | |
| CN101196354A (en) | Injection type low-temperature waste-heat power generation refrigerating method | |
| Nikbakhti et al. | Performance analysis of an integrated adsorption and absorption refrigeration system | |
| Zhang et al. | Power generation and heating performances of integrated system of ammonia–water Kalina–Rankine cycle | |
| CN102563987A (en) | Vapor-compression refrigerating plant driven by organic Rankine cycle and method | |
| CN101871440A (en) | Solar energy-natural gas complementary injection type distributed combined cold heat and power supply device | |
| Wang et al. | Solar powered cascading cogeneration cycle with ORC and adsorption technology for electricity and refrigeration | |
| CN103542597B (en) | A kind of power and refrigeration cogeneration system being suitable for recovery temperature-variable heat source | |
| CN101187509A (en) | Integral type jet type low temperature residual heat generation refrigeration device | |
| Martínez et al. | Energy and exergy analysis of a double absorption heat transformer operating with water/lithium bromide | |
| Nikbakhti et al. | Performance optimization of an integrated adsorption-absorption cooling system driven by low-grade thermal energy | |
| Ebrahimi et al. | Design and evaluation of combined cooling, heating and power using micro gas turbine, adsorption chiller and a thermal damping tank in micro scale | |
| CN101520254B (en) | Adsorption type low temperature heat resource power generation and refrigeration device | |
| CN101520253A (en) | Adsorption type low temperature heat resource power generation and refrigeration method | |
| Jiang et al. | Thermo-economical analysis between new absorption–ejector hybrid refrigeration system and small double-effect absorption system | |
| Liu et al. | Analysis on temperature vacuum swing adsorption integrated with heat pump for efficient carbon capture | |
| CN103090582B (en) | The absorption energy storage equipment of a kind of boosting type three-phase | |
| He et al. | Performance prediction of refrigerant-DMF solutions in a single-stage solar-powered absorption refrigeration system at low generating temperatures | |
| CN204141889U (en) | Organic Rankine-absorption-compression formula the refrigeration system of Driven by Solar Energy | |
| CN111306835B (en) | Ammonia water working medium combined cooling heating and power system utilizing medium-low temperature heat source and working method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20090902 |