CN104929705A - Simplified step recovery gas internal combustion engine waste heat system - Google Patents
Simplified step recovery gas internal combustion engine waste heat system Download PDFInfo
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- CN104929705A CN104929705A CN201510313985.8A CN201510313985A CN104929705A CN 104929705 A CN104929705 A CN 104929705A CN 201510313985 A CN201510313985 A CN 201510313985A CN 104929705 A CN104929705 A CN 104929705A
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- combustion engine
- orc
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- conduction oil
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention relates to a simplified step recovery gas internal combustion engine waste heat system which comprises a gas internal combustion set, a splitter, an ORC power generating component, a heat conducting oil circulating component and a cooling water circulating component, wherein the ORC power generating component and the heat conducting oil circulating component are connected with the gas internal combustion set through the splitter, and the cooling water circulating component is connected with the ORC power generating component. Heat conducting oil is divided into two streams by the splitter, one stream is used for preheating working media in the ORC power generating component, the other stream exchanges heat with flue gas and is used for heating the working media in the ORC power generating component after being heated by the flue gas, and heat of cooling water in the ORC power generating component is recovered to serve as a domestic hot-water source. Higher heat conducting oil temperature is obtained, and a high-temperature heat source is provided for the ORC power generating component, so that ORC power generating efficiency is further improved.
Description
Technical field
The present invention relates to technical field of internal combustion engines, the step especially relating to a kind of simplification reclaims gas internal-combustion engine residual heat system.
Background technique
The utilization of the energy and human social development have and contact closely, and along with petering out of traditional fossil energy, energy shortage problem is day by day serious, the therefore energy-conservation great attention being subject to national governments and enterprise in using energy source engineering.How to realize that primary energy is efficient, cascade utilization, become the focus of vast scholar's research.
The nearly heat more than 60% of gas internal combustion electric generator group by jacket water, fume emission in environment, residual-heat utilization technology in the past, often adopt cogeneration of heat and power or ORC cogeneration technology, the core of cogeneration of heat and power is by carrying out cascade utilization to primary energy, improves efficiency of energy utilization; ORC adopts low boiling organic working medium to promote the decompressor low grade heat energy that done work to be converted to the process of high-grade electric energy, system is compared the Rankine cycle of ordinary water steam and is had higher thermal efficiency of cycle and heat recovery rate, the condensing pressure of system is generally close to barometric pressure, system is without the need to vacuum, and the Design and manufacture of condenser is relatively simple.
Adopt the cogeneration of heat and power of gas internal combustion electric generator group to utilize high-temperature flue gas heating domestic hot water, obviously do not realize the cascade utilization of the energy completely, high-quality thermal power transfer is domestic hot-water, and system exergy efficiencyX is very low.The ORC electrification component in the past reclaiming afterheat of IC engine adopts two cover ORC circulatory systems Mist heat recovering and jacket water waste heats respectively often, and system is comparatively complicated, and system effectiveness promotes and not obvious.
Chinese patent CN103758658A discloses heat recovery system for gradient utilization of two-stage double-circuit internal-combustion engine waste heat, composes in series low-temperature level successively circulate by the first working medium pump, the first cooling water preheater, charge inter cooling vaporizer, the first steam turbine and the first condenser; Composed in series high-temperature level successively circulated by the second working medium pump, charge inter cooling preheater, the second cooling water preheater, exhaust vaporizer, the second high-pressure turbine, reheater, the 3rd low-pressure turbine and the second condenser.This patent cascade utilization internal-combustion engine fume afterheat and jacket water waste heat, arrange multiple heat exchanger recovery waste heat, two-way cooling water recirculation system, two bursts of organic working medium circulatory systems complete two-way ORC power generation system.System relative complex, the optimum condition of more difficult effective coupling each equipment during practical application.
Summary of the invention
Object of the present invention is exactly that step in order to overcome defect that above-mentioned prior art exists and the simplification that provides a kind of ORC of making generating efficiency to improve further reclaims gas internal-combustion engine residual heat system.
Object of the present invention can be achieved through the following technical solutions:
The step of simplification reclaims a gas internal-combustion engine residual heat system, comprises
Gas internal-combustion engine group,
Shunt,
The ORC electrification component be connected with gas internal-combustion engine group by shunt and conduction oil recirculation assembly,
The cooling water circulation assembly be connected with ORC electrification component,
Conduction oil is divided into two strands, the working medium in one preheating ORC electrification component, and another stock by after flue gas, then heats the working medium in ORC electrification component, and the cooling water in ORC electrification component reclaims and originates as domestic hot-water.
Described ORC electrification component by being interconnected to constitute the working medium pump of a circulation, preheater, vaporizer, decompressor, condenser form, and described decompressor is connected with generator.
Described conduction oil recirculation assembly comprises heat transfer oil filter, Heat-transfer Oil Pump, preheater, flue gas heat-exchange unit, said modules and gas internal-combustion engine group, shunt and connects and composes a circulation, and the pipeline forming circulation is provided with oil storage tank.
The circulation that described conduction oil recirculation assembly is formed is connected with vaporizer and preheater.
Described cooling water circulation assembly comprises feed water filter, feed water pump and heat storage tank, is connected with condenser, reclaims waste heat of condensation, provides domestic hot-water.
Working medium in described ORC electrification component is pressurizeed through working medium pump, enters preheater preheats, then enters vaporizer and becomes high temperature and high pressure steam, enters the generating of expander acting pushing generator, finally enters condenser condenses heat release.
Conduction oil in described conduction oil recirculation assembly enters in the cylinder sleeve of internal combustion unit through filter, Heat-transfer Oil Pump and cools casing wall, then enter shunt and be divided into two strands, one enters the preheater preheats working medium of ORC electrification component, another stock enters flue gas heat-exchange unit and absorbs fume afterheat, conduction oil temperature raises further, then enter the vaporizer hot working fluid again of ORC electrification component, final conduction oil is pooled in oil storage tank, completes conduction oil circulation.
Compared with prior art, because ORC electrification component efficiency is by the impact of working medium evaporating temperature, evaporating temperature is higher, and systems generate electricity efficiency is larger.The temperature limiting that organic working medium can bear is generally below 350 DEG C, and internal-combustion engine flue-gas temperature is generally higher than 350 DEG C, in order to prevent, flue-gas temperature is too high causes working medium cracking, the present invention utilizes cylinder sleeve waste heat preheating conduction oil temperature to 95 DEG C, because internal combustion engine cylinder jacket water waste heat is generally greater than fume afterheat, suppose that all conduction oils absorb fume afterheat, then final conduction oil temperature is generally no more than 150 DEG C, and in order to more effectively utilize afterheat of IC engine, by shunt, conduction oil is divided into two strands, one is used for preheating organic working medium, one and flue gas heat exchange, obtain higher conduction oil temperature, for ORC electrification component provides high temperature heat source, ORC generating efficiency is improved further.
This patent only adopts one conduction oil step to reclaim jet dynamic control waste heat, one organic working medium cycle power generation system, a set of cooling working medium water circulation system.System can reclaim jet dynamic control waste heat by step, and simplicity of design is easy to realize.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1-gas internal-combustion engine group, 2-shunt, 3-flue gas heat-exchange unit, 4-vaporizer, 5-decompressor, 6-generator, 7-feed water pump, 8-feed water filter, 9-heat storage tank, 10-condenser, 11-working medium filter, 12-working medium pump, 13-preheater, 14-oil storage tank, 15-heat transfer oil filter, 16-Heat-transfer Oil Pump.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
A kind of step of simplification reclaims gas internal-combustion engine residual heat system, its structure as shown in Figure 1, the different grade waste heats (fume afterheat, jacket water waste heat) of reasonable distribution gas internal-combustion engine unit, step heating organic working medium, improve the efficiency of ORC electrification component, reclaim the system that condenser waste heat is originated as domestic hot-water simultaneously.
The present invention mainly comprises gas internal-combustion engine group 1, ORC electrification component, conduction oil recirculation assembly and cooling water circulation assembly.ORC electrification component by being interconnected to constitute the working medium pump 12 of a circulation, preheater 13, vaporizer 4, decompressor 5, condenser 10 form, and decompressor 5 is connected with generator 6.Conduction oil recirculation assembly comprises heat transfer oil filter 15, Heat-transfer Oil Pump 16, preheater 13, flue gas heat-exchange unit 3, said modules and gas internal-combustion engine group, shunt 2 connects and composes a circulation, and the pipeline forming circulation is provided with oil storage tank 14.The circulation that conduction oil recirculation assembly is formed is connected with vaporizer and preheater.Cooling water circulation assembly comprises feed water filter 8, feed water pump 7 and heat storage tank 9, is connected with condenser 10, reclaims waste heat of condensation, provides domestic hot-water.
In ORC electrification component, working medium is pressurizeed through working medium pump 12, enters preheater 13 preheating, then enters vaporizer 4 and becomes high pressure high temperature vapor, enters decompressor 5 expansion work pushing generator 6 and generates electricity, finally enter condenser 10 condensation heat release; In conduction oil recirculation assembly, conduction oil enters in gas internal-combustion engine group 1 cylinder sleeve cool casing wall through filter 15, Heat-transfer Oil Pump 16, then enter shunt and be divided into two strands, one enters the pre-hot working fluid of preheater 13 of ORC electrification component, another stock enters flue gas heat-exchange unit 3 and absorbs fume afterheat, conduction oil temperature raises further, then enter vaporizer 4 hot working fluid again of ORC electrification component, final conduction oil is pooled in oil storage tank 14, completes conduction oil circulation.Cooling water circulation assembly comprises feed water filter 8, feed water pump 7, condenser 10 and heat storage tank 9, and main purpose reclaims waste heat of condensation, provides domestic hot-water.
Working procedure of the present invention: start jet dynamic control, conduction oil recirculation assembly, open the first valve V1, 3rd valve V3, close the second valve V2, 4th valve V4, after preheating casing wall, start cooling feed water pump 7 and working medium circulating pump 12, open the 6th valve V6, 7th valve V7, close the 5th valve v5 protection decompressor 5, open the second valve V2, 4th valve V4, close the 3rd valve V3, treat Temperature of Working, pressure meets the demands, open the 5th valve V5, close the 6th valve V6, 7th valve V7, ORC electrification component working medium promotes decompressor acting.Conduction oil is stored in oil storage tank 14, conduction oil enters in the cylinder sleeve of gas internal-combustion engine group 1 through filter 15 and Heat-transfer Oil Pump 16, the simultaneously stability waste heat of cooling casing wall, outlet temperature is 95 DEG C, be divided into two strands through separator 2, one is used for preheating ORC electrification component working medium, and another stock enters flue gas heat-exchange unit 3, and then hot working fluid, complete conduction oil circulation.Cooling water circulation assembly reclaims the waste heat of ORC electrification component condenser condenses working medium, is stored in heat storage tank (9) 9, supplies user as domestic hot-water.
In sum, these are only system construction of the present invention and Simple Method for Design general introduction, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the step simplified reclaims a gas internal-combustion engine residual heat system, it is characterized in that, comprises
Gas internal-combustion engine group,
Shunt,
The ORC electrification component be connected with gas internal-combustion engine group by shunt and conduction oil recirculation assembly,
The cooling water circulation assembly be connected with ORC electrification component,
Conduction oil is divided into two strands, the working medium in one preheating ORC electrification component, and another stock by after flue gas, then heats the working medium in ORC electrification component, and the cooling water in ORC electrification component reclaims and originates as domestic hot-water.
2. the step of a kind of simplification according to claim 1 reclaims gas internal-combustion engine residual heat system, it is characterized in that, described ORC electrification component by being interconnected to constitute the working medium pump of a circulation, preheater, vaporizer, decompressor, condenser form, and described decompressor is connected with generator.
3. the step of a kind of simplification according to claim 2 reclaims gas internal-combustion engine residual heat system, it is characterized in that, described conduction oil recirculation assembly comprises heat transfer oil filter, Heat-transfer Oil Pump, preheater, flue gas heat-exchange unit, said modules and gas internal-combustion engine group, shunt and connects and composes a circulation.
4. the step of a kind of simplification according to claim 3 reclaims gas internal-combustion engine residual heat system, it is characterized in that, the pipeline forming circulation is provided with oil storage tank.
5. the step of a kind of simplification according to claim 2 reclaims gas internal-combustion engine residual heat system, it is characterized in that, the circulation that described conduction oil recirculation assembly is formed is connected with vaporizer and preheater.
6. the step of a kind of simplification according to claim 2 reclaims gas internal-combustion engine residual heat system, it is characterized in that, described cooling water circulation assembly comprises feed water filter, feed water pump and heat storage tank, is connected with condenser, reclaim waste heat of condensation, domestic hot-water is provided.
7. the step of a kind of simplification according to claim 2 reclaims gas internal-combustion engine residual heat system, it is characterized in that, working medium in described ORC electrification component is pressurizeed through working medium pump, enter preheater preheats, then enter vaporizer and become high temperature and high pressure steam, enter the generating of expander acting pushing generator, finally enter condenser condenses heat release.
8. the step of a kind of simplification according to claim 3 reclaims gas internal-combustion engine residual heat system, it is characterized in that, conduction oil in described conduction oil recirculation assembly enters in the cylinder sleeve of internal combustion unit through filter, Heat-transfer Oil Pump and cools casing wall, then enter shunt and be divided into two strands, one enters the preheater preheats working medium of ORC electrification component, another stock enters flue gas heat-exchange unit and absorbs fume afterheat, conduction oil temperature raises further, then the vaporizer hot working fluid again of ORC electrification component is entered, final conduction oil is pooled in oil storage tank, completes conduction oil circulation.
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| CN201510313985.8A CN104929705A (en) | 2015-06-09 | 2015-06-09 | Simplified step recovery gas internal combustion engine waste heat system |
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| CN201510313985.8A CN104929705A (en) | 2015-06-09 | 2015-06-09 | Simplified step recovery gas internal combustion engine waste heat system |
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Cited By (5)
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|---|---|---|---|---|
| CN105179104A (en) * | 2015-09-25 | 2015-12-23 | 上海船舶研究设计院 | Comprehensive heat source system applied to fields of ships and ocean engineering |
| RU2622143C1 (en) * | 2016-04-22 | 2017-06-13 | Общество с ограниченной ответственностью "ЛУКОЙЛ-ПЕРМЬ" | Method of use of organic rankine cycle plant for providing objects of crude oil treating plant with heat energy |
| CN107178436A (en) * | 2017-02-28 | 2017-09-19 | 上海发电设备成套设计研究院 | A kind of cold, heat and power triple supply system and method |
| CN108906869A (en) * | 2018-08-14 | 2018-11-30 | 中节能城市节能研究院有限公司 | A kind of contaminated soil in-situ heat repair system and method using distributed energy |
| CN110388832A (en) * | 2019-07-31 | 2019-10-29 | 广东东实开能能源有限公司 | A kind of system using conduction oil recycling industrial waste gas waste heat |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105179104A (en) * | 2015-09-25 | 2015-12-23 | 上海船舶研究设计院 | Comprehensive heat source system applied to fields of ships and ocean engineering |
| RU2622143C1 (en) * | 2016-04-22 | 2017-06-13 | Общество с ограниченной ответственностью "ЛУКОЙЛ-ПЕРМЬ" | Method of use of organic rankine cycle plant for providing objects of crude oil treating plant with heat energy |
| CN107178436A (en) * | 2017-02-28 | 2017-09-19 | 上海发电设备成套设计研究院 | A kind of cold, heat and power triple supply system and method |
| CN107178436B (en) * | 2017-02-28 | 2019-07-02 | 上海发电设备成套设计研究院 | A kind of cold, heat and power triple supply system and method |
| CN108906869A (en) * | 2018-08-14 | 2018-11-30 | 中节能城市节能研究院有限公司 | A kind of contaminated soil in-situ heat repair system and method using distributed energy |
| CN110388832A (en) * | 2019-07-31 | 2019-10-29 | 广东东实开能能源有限公司 | A kind of system using conduction oil recycling industrial waste gas waste heat |
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Application publication date: 20150923 |
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