CN104234763A - Organic Rankine cycle system recovering waste heat through heat pipe technology - Google Patents
Organic Rankine cycle system recovering waste heat through heat pipe technology Download PDFInfo
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- CN104234763A CN104234763A CN201410150477.8A CN201410150477A CN104234763A CN 104234763 A CN104234763 A CN 104234763A CN 201410150477 A CN201410150477 A CN 201410150477A CN 104234763 A CN104234763 A CN 104234763A
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Abstract
The invention discloses an organic Rankine cycle system recovering the waste heat through the heat pipe technology. The system comprises a heat-pipe heat exchanger, a power generator, a condenser and a working fluid pump. Efficient heat exchange of organic working fluid is performed between the heat-pipe heat exchanger and a low-temperature heat source, the working fluid is vaporized into vapor after heat exchange, the vaporized working fluid enters an engine to output the power, after the working fluid enters the condenser and is condensed into fluid, the working fluid enters the heat-pipe heat exchanger through the pump, and the process is circulated. By the aid of the heat-pipe heat exchanger, the defects that according to a heat exchanger of an existing system, the heat exchanging efficiency is low and size is excessively large are solved.
Description
Technical field
The present invention relates to a kind of heat pipe heat exchanger, be applied to the heat recovery of organic Rankine bottoming cycle.
Background technique
The serious main cause of China's energy waste is that waste heat, Waste Heat Reuse rate are low.In industry, the energy conversion of nearly 60-65% is residual heat resources, wherein accounts for more than 60% of total amount lower than low-temperature heat source in 350 degree.Have some residual-heat utilization technology both at home and abroad at present.
The domestic technology that utilizes to waste heat concentrates on the UTILIZATION OF VESIDUAL HEAT IN of steam turbine and flue gas substantially, and the UTILIZATION OF VESIDUAL HEAT IN of other screw expander individual concentrates on the direct utilization of steam.Also application case is not had for organic Rankine bottoming cycle is domestic.The heat source temperature of the UTILIZATION OF VESIDUAL HEAT IN of external realization concentrates within the scope of 100-350 DEG C substantially.A major obstacle that can not be utilized effectively for the industrial exhaust heat lower than 100 DEG C is both at home and abroad that heat exchanger efficiency is not enough, or heat exchanger volume is too large, well can not realize the vaporization of organic working medium.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, the heat pipe heat exchanger that a kind of heat transfer effect is good, volume is suitable is provided, make the organic working medium in system be able to rapid vaporization, to realize the Power output of the circulatory system.
Heat pipe heat exchanger is made up of heat-pipe elements, is the heat exchanger utilizing heat pipe principle to realize heat exchange.Be covered with finned heat pipe in shell, the central authorities of enclosure interior have one piece of dividing plate that housing is divided into two parts, form the passage of hot fluid and cold fluid.When hot-cold fluid flows through in respective passage simultaneously, the heat of hot fluid has just been passed to cold fluid by heat pipe, achieves the exchange heat of two kinds of fluids.
The heat exchanger of native system realizes the heat exchange of liquid refrigerant and low-temperature water heating, and working medium absorbs the heat vaporization of hot water, belongs to liquid-liquid type heat pipe heat exchanger.Because adopting heat pipes for heat transfer is functional, can suppose during design that the heat transfer of its outer surface is not by the impact of internal thermal resistance, and then heat pipe heat exchanger is assumed the dividing wall type heat exchanger of series thermal pipes heat transfer resistance on continuous print conversion heat transfer area.Heat-transfer coefficient empirically formula and determining, drag evaluation adopts GunterA.Y. formula and Gray and Webb drag evaluation Additive Model.
Advantage of the present invention:
1. heat pipe heat exchanger has the advantage that the other types heat exchangers such as temperature conductivity is high, heat output large, maintenance is few do not have.
2. adopt heat-pipe technology, achieve the good heat exchange of low-temperature heat source and working medium.
3. adopt heat-pipe technology, ensure that the high efficiente callback of low temperature exhaust heat.
Accompanying drawing illustrates:
Accompanying drawing is the circulatory system figure of heat-pipe technology recovery waste heat.
Claims (5)
1. utilize heat-pipe technology to realize an organic rankine cycle system for low temperature exhaust heat recovery, comprise heat pipe heat exchanger, power engine, condenser and pump.It is characterized in that: utilize heat-pipe technology to realize the heat recovery of about 85 DEG C low-temperature heat sources, the High Efficiency Thermal realizing low-temperature heat source and working medium exchanges, and has good Power output effect to make power engine.
2. heat pipe according to claim 1 can be all types of liquid-liquid type heat pipe heat exchanger.
3. low-temperature heat source according to claim 1 can be the industrial wastewater of the large-scale manufacturing enterprises such as petrochemical industry, cement and metallurgy, comprises and can not realize the low-quality thermal source of heat recovery and the impure more industrial wastewater lower than 100 DEG C with steam turbine.
4. condenser according to claim 1 can be the cooling tower equipment in enterprise, also can be the cooling heat exchanger of air cooler or other types.
5. power engine according to claim 1 can be screw expander, also can be turbine engine or other power plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150477.8A CN104234763A (en) | 2014-04-14 | 2014-04-14 | Organic Rankine cycle system recovering waste heat through heat pipe technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150477.8A CN104234763A (en) | 2014-04-14 | 2014-04-14 | Organic Rankine cycle system recovering waste heat through heat pipe technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104234763A true CN104234763A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410150477.8A Pending CN104234763A (en) | 2014-04-14 | 2014-04-14 | Organic Rankine cycle system recovering waste heat through heat pipe technology |
Country Status (1)
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| CN (1) | CN104234763A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530182A (en) * | 2019-09-27 | 2019-12-03 | 南京工业大学 | Special-shaped separate heat pipe waste heat for passive ORC system recycles vaporising device |
| CN110847993A (en) * | 2019-10-29 | 2020-02-28 | 鲁东大学 | Power generation system based on server |
| CN114636317A (en) * | 2022-02-28 | 2022-06-17 | 中国船舶重工集团公司第七一九研究所 | Cooling system and ship steam power system |
Citations (6)
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| JPS60138214A (en) * | 1983-12-26 | 1985-07-22 | Mitsui Eng & Shipbuild Co Ltd | Gas turbine composite cycle power generating plant |
| CN102022864A (en) * | 2009-09-15 | 2011-04-20 | 通用电气公司 | Heat pipes for transferring heat to an organic rankine cycle evaporator |
| CN102401591A (en) * | 2011-11-21 | 2012-04-04 | 昆明理工大学 | Vertical heat pipe organic medium evaporation medium and low temperature flue gas waste heat power generation system |
| CN102401589A (en) * | 2011-11-21 | 2012-04-04 | 昆明理工大学 | Sleeve type heat pipe organic medium evaporation medium-low temperature flue gas waste heat power generating system |
| CN102817657A (en) * | 2012-09-12 | 2012-12-12 | 重庆大学 | Heat pipe technology based organic Rankine cycle low-temperature exhaust heat power generating system |
| KR20130128902A (en) * | 2012-05-18 | 2013-11-27 | 주식회사 포스코플랜텍 | Evaporator structure of orc generator |
-
2014
- 2014-04-14 CN CN201410150477.8A patent/CN104234763A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60138214A (en) * | 1983-12-26 | 1985-07-22 | Mitsui Eng & Shipbuild Co Ltd | Gas turbine composite cycle power generating plant |
| CN102022864A (en) * | 2009-09-15 | 2011-04-20 | 通用电气公司 | Heat pipes for transferring heat to an organic rankine cycle evaporator |
| CN102401591A (en) * | 2011-11-21 | 2012-04-04 | 昆明理工大学 | Vertical heat pipe organic medium evaporation medium and low temperature flue gas waste heat power generation system |
| CN102401589A (en) * | 2011-11-21 | 2012-04-04 | 昆明理工大学 | Sleeve type heat pipe organic medium evaporation medium-low temperature flue gas waste heat power generating system |
| KR20130128902A (en) * | 2012-05-18 | 2013-11-27 | 주식회사 포스코플랜텍 | Evaporator structure of orc generator |
| CN102817657A (en) * | 2012-09-12 | 2012-12-12 | 重庆大学 | Heat pipe technology based organic Rankine cycle low-temperature exhaust heat power generating system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530182A (en) * | 2019-09-27 | 2019-12-03 | 南京工业大学 | Special-shaped separate heat pipe waste heat for passive ORC system recycles vaporising device |
| CN110530182B (en) * | 2019-09-27 | 2021-02-02 | 南京工业大学 | Special-shaped separated heat pipe waste heat recovery evaporation device for passive ORC system |
| CN110847993A (en) * | 2019-10-29 | 2020-02-28 | 鲁东大学 | Power generation system based on server |
| CN114636317A (en) * | 2022-02-28 | 2022-06-17 | 中国船舶重工集团公司第七一九研究所 | Cooling system and ship steam power system |
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Application publication date: 20141224 |