CN204082381U - A kind of engine waste heat recovery system based on Organic Rankine Cycle - Google Patents
A kind of engine waste heat recovery system based on Organic Rankine Cycle Download PDFInfo
- Publication number
- CN204082381U CN204082381U CN201420197442.5U CN201420197442U CN204082381U CN 204082381 U CN204082381 U CN 204082381U CN 201420197442 U CN201420197442 U CN 201420197442U CN 204082381 U CN204082381 U CN 204082381U
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- China
- Prior art keywords
- heat
- water
- engine
- refrigerant
- motor
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- 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.)
- Expired - Lifetime
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- 239000002918 waste heat Substances 0.000 title claims abstract description 21
- 238000011084 recovery Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000003507 refrigerant Substances 0.000 claims abstract description 32
- 238000005057 refrigeration Methods 0.000 claims abstract description 14
- 239000006200 vaporizer Substances 0.000 claims abstract description 11
- 238000004064 recycling Methods 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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
- 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 utility model discloses a kind of engine waste heat recovery system based on Organic Rankine Cycle, comprise engines tail air circuit, cylinder sleeve of engine water loop, refrigerant loop and external refrigeration water loop.The utility model fully reclaims engine waste heat, and recovered energy is high, and reuse efficiency is higher, and the operation of whole system is more steady and structural configuration is more compact.Its main feature comprises the heat source recovery system that motor exhaust and jacket water be integrated, and vaporizer, condenser, decompressor and refrigerant pump are main refrigerant ORC system.By effectively controlling native system all parts, engine waste heat recycling can be realized, and then improve the generated energy of motor unit fuel consume, shorten the investment cycle of generator.
Description
Technical field
The utility model relate to engine waste heat recycling system, particularly relate to Organic Rankine Cycle engine waste heat recycling system, specifically a kind of system and device recycled based on Organic Rankine Cycle engine waste heat, refrigeration agent (as R245fa) is utilized to absorb heat from motor exhaust and jacket water, by the four-stage that Lang Ken circulates, external output work, realizes the recycling of energy.
Background technique
Along with energy starved is increasingly serious, the energy-conservation people of enjoying of motor pay close attention to.Utilize ORC system to receive and dispatch the used heat of motivation back and forth, not only easily realize and also heat recovery efficiency high.The thermal source of motor recoverable mainly comprises the heat of jacket water and the heat etc. to environmental emission high-temperature tail gas.The temperature of cylinder sleeve of engine water, generally lower than 100 DEG C, therefore can be carried out heat exchange by the refrigerant directly and in ORC system, realize the recycling of heat.And the temperature of exhaust fume of motor is generally higher than 500 DEG C, in ORC system, the bearing temperature of refrigerant is lower than 350 DEG C, and this limits ORC system reclaims field application in engine waste heat to a certain extent.
For utilizing the used heat of motor more efficiently, the engine waste heat recovery system device based on Organic Rankine Cycle also emphasizes particularly on different fields in implementation.Through the retrieval of existing document and patent, find to exist at present the motor Organic Rankine Cycle system of several different structure form and perfect not.The patent No. is US6986251 patent, the waste gas recovering device of the motor proposed, mainly utilize a main pump and a service pump, to reduce the cavitation problems that refrigeration agent working medium produces in high speed main pump, mainly comprise waste gas vaporizer, condenser and relevant water tank in this system, oil cooler, Intercooler etc., refrigeration agent working medium is cooling water tank radiator respectively simultaneously, Intercooler, engine oil cooler etc.Do not have in the system of this model utility too much to consider exhaust gas recirculation device of engine, change larger to existing apparatus.The patent No. is CN102787889A patent, proposes a kind of diesel cylinder sleeve water and tail gas waste heat recovering system, uses the preheater in cylinder sleeve of engine water heating ORC system respectively, and the tail gas of motor first heats the vaporizer in ORC system again after SCR cooling.The systematic comparison of this model utility is complicated, and jacket water and tail gas heat preheater and vaporizer respectively, all comparatively difficult in Performance Match and Systematical control, and tail gas has part energy loss after SCR.
Therefore, for above-mentioned present situation, if model utility the ORC system of a kind of efficiency utilization cylinder sleeve of engine water and tail gas waste heat can be gone out, will greatly promote it to reclaim field application in engine waste heat.
Summary of the invention
The purpose of this utility model proposes a kind of motor ORC system, makes full use of the used heat of cylinder sleeve of engine water and tail gas, its recycling efficiency of more effective raising.
For solving the problem, the utility model by the following technical solutions: a kind of engine waste heat recovery system based on Organic Rankine Cycle, comprises engines tail air circuit, cylinder sleeve of engine water loop, refrigerant loop and external refrigeration water loop, it is characterized in that:
In described engines tail air circuit, motor exhaust, before directly discharging environment, first through exhaust gas heat exchanger heat release, passes to jacket water heat, thus realizes the recovery of tail gas heat quantity; In exhaust gas heat exchanger, motor exhaust and jacket water down current arrangement;
In described cylinder sleeve of engine water loop, jacket water enters cylinder sleeve of engine heat absorption under motor carries the effect of circulating water pump, from motor out after then enter exhaust gas heat exchanger the heat absorbing tail gas, again respectively through the water side canal heat release of vaporizer and preheater, realize the recovery of jacket water and tail gas heat quantity;
In described refrigerant loop, in liquid container, the liquid refrigerants of low-temp low-pressure becomes the refrigerant of cryogenic high pressure after working medium pump; Then successively through preheater, vaporizer, evaporate after absorbing the used heat of motor, become the gaseous coolant of High Temperature High Pressure; Gaseous coolant enters decompressor or expansion power generator again, externally acting or generating, thus realizes the recycling of used heat; From decompressor or expansion power generator low-pressure gaseous refrigerant out, then by condenser heat rejection, the liquid refrigerants becoming low-temp low-pressure is got back in liquid container;
In described external refrigeration water loop, external refrigeration water, through condenser, absorbs the heat of gaseous coolant, becomes the refrigerant of low-temp low-pressure.
A kind of engine waste heat recovery system based on Organic Rankine Cycle of the present utility model, fully reclaim engine waste heat, recovered energy is high, and reuse efficiency is higher, and the operation of whole system is more steady and structural configuration is more compact.Its main feature comprises the heat source recovery system that motor exhaust and jacket water be integrated, and vaporizer, condenser, decompressor and refrigerant pump are main refrigerant ORC system.By effectively controlling native system all parts, engine waste heat recycling can be realized, and then improve the generated energy of motor unit fuel consume, shorten the investment cycle of generator.
As further improvement of the utility model, regenerator is added at decompressor or between expansion power generator and condenser, carry out, from working medium pump liquid refrigerants out and the heat exchange from decompressor or expansion power generator gaseous coolant out, improving the heat recovery efficiency of whole system further.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structured flowchart of the present utility model.
Embodiment
With reference to accompanying drawing, a kind of engine waste heat recovery system based on Organic Rankine Cycle of the present utility model, comprises engines tail air circuit, cylinder sleeve of engine water loop, refrigerant loop and external refrigeration water loop.
In described engines tail air circuit, motor exhaust 13, before discharge environment, first through exhaust gas heat exchanger 9, passes to jacket water 12 heat, thus realizes the recovery of tail gas heat quantity.In exhaust gas heat exchanger 9, motor exhaust 13 and jacket water 12 down current arrangement.In actual motion, in order to meet the reliable use of environmental requirement and exhaust gas heat exchanger, can not be too low from exhaust gas heat exchanger flue-gas temperature out, generally can not lower than 140 DEG C.
In described cylinder sleeve of engine water loop, jacket water 12 enters cylinder sleeve of engine heat absorption under motor carries the effect of circulating water pump, from motor out after then enter the heat that exhaust gas heat exchanger 9 absorbs tail gas, again respectively through the water side canal of vaporizer 5 and preheater 4, to refrigerant heat release, realize the recovery of jacket water and tail gas heat quantity.In the operation of reality, need to control the water temperature of jacket water: water temperature is too low, motor thermostat can not standard-sized sheet, and the heat of jacket water can not utilize completely; Water temperature is too high, and engine high-temperature is reported to the police, even autostop.
In described refrigerant loop, the low-temp low-pressure liquid refrigerants 11 in liquid container 1 boosts through working medium pump 2, then successively through preheater 4, vaporizer 5, evaporates, become the gaseous coolant of High Temperature High Pressure after absorbing the used heat of motor; Gaseous coolant enters decompressor or expansion power generator 6 again, externally acting or generating, thus realizes the recycling of engine waste heat; From decompressor or expansion power generator 6 low-pressure gaseous refrigerant out, then by condenser 7, externally cooling water heat release, the liquid refrigerants becoming low-temp low-pressure is got back in liquid container 1.In order to improve the heat recovery efficiency of whole system further, regenerator 3 can be added at decompressor or between expansion power generator 6 and condenser 7, carrying out from working medium pump 2 liquid refrigerants out and the heat exchange from decompressor 6 out gaseous coolant.The refrigerant used is refrigeration agent working medium, as R245fa.
In described external refrigeration water loop, external refrigeration water 10, through condenser 7, is used for absorbing the heat of gaseous coolant, becomes the liquid refrigerants of low-temp low-pressure.
It is understood that above-described embodiment is just to explanation of the present utility model, instead of to restriction of the present utility model, any model utility do not exceeded in the utility model spirit is created, and all falls within protection domain of the present utility model.
Claims (2)
1., based on an engine waste heat recovery system for Organic Rankine Cycle, comprise engines tail air circuit, cylinder sleeve of engine water loop, refrigerant loop and external refrigeration water loop, it is characterized in that:
In described engines tail air circuit, motor exhaust (13), before directly discharging environment, first through exhaust gas heat exchanger (9) heat release, passes to jacket water (12) heat, thus realizes the recovery of tail gas heat quantity; In exhaust gas heat exchanger (9), motor exhaust (13) and jacket water (12) down current arrangement;
In described cylinder sleeve of engine water loop, jacket water (12) enters cylinder sleeve of engine heat absorption carry the effect of circulating water pump at motor under, from motor out after then enter exhaust gas heat exchanger (9) and absorb the heat of tail gas, again respectively through the water side canal heat release of vaporizer (5) and preheater (4), thus realize the recovery of cylinder sleeve of engine water and tail gas heat quantity;
In described refrigerant loop, in liquid container (1), the liquid refrigerants (11) of low-temp low-pressure becomes the refrigerant of cryogenic high pressure after working medium pump (2); Then successively through preheater (4) and vaporizer (5), evaporate after absorbing the used heat of motor, become the gaseous coolant of High Temperature High Pressure; Gaseous coolant enters decompressor or expansion power generator (6) again, externally acting or generating, thus realizes the recycling of used heat; From decompressor or expansion power generator (6) low-pressure gaseous refrigerant out, then by condenser (7) heat release, the liquid refrigerants becoming low-temp low-pressure is got back in liquid container;
In described external refrigeration water loop, external refrigeration water (10), through condenser (7), absorbs the heat of gaseous coolant, becomes the refrigerant of low-temp low-pressure.
2. a kind of engine waste heat recovery system based on Organic Rankine Cycle as claimed in claim 1, it is characterized in that adding regenerator (3) at decompressor or between expansion power generator (6) and condenser (7), carry out from working medium pump liquid refrigerants out and the heat exchange from decompressor or expansion power generator (6) gaseous coolant out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197442.5U CN204082381U (en) | 2014-04-22 | 2014-04-22 | A kind of engine waste heat recovery system based on Organic Rankine Cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197442.5U CN204082381U (en) | 2014-04-22 | 2014-04-22 | A kind of engine waste heat recovery system based on Organic Rankine Cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082381U true CN204082381U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420197442.5U Expired - Lifetime CN204082381U (en) | 2014-04-22 | 2014-04-22 | A kind of engine waste heat recovery system based on Organic Rankine Cycle |
Country Status (1)
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| CN (1) | CN204082381U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165102A (en) * | 2014-04-22 | 2014-11-26 | 浙江银轮机械股份有限公司 | Engine waste heat recovery system based on organic Rankine cycle |
| CN113389624A (en) * | 2021-06-11 | 2021-09-14 | 重庆大学 | Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure |
-
2014
- 2014-04-22 CN CN201420197442.5U patent/CN204082381U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165102A (en) * | 2014-04-22 | 2014-11-26 | 浙江银轮机械股份有限公司 | Engine waste heat recovery system based on organic Rankine cycle |
| CN113389624A (en) * | 2021-06-11 | 2021-09-14 | 重庆大学 | Wankel engine and high-temperature water spraying based tail gas waste heat recovery efficient engine structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150107 |