CN1138058C - Supercritical backheat-heated engine - Google Patents
Supercritical backheat-heated engine Download PDFInfo
- Publication number
- CN1138058C CN1138058C CNB001137980A CN00113798A CN1138058C CN 1138058 C CN1138058 C CN 1138058C CN B001137980 A CNB001137980 A CN B001137980A CN 00113798 A CN00113798 A CN 00113798A CN 1138058 C CN1138058 C CN 1138058C
- Authority
- CN
- China
- Prior art keywords
- supercritical
- supercritical fluid
- pipeline
- backheat
- power piston
- 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.)
- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 4
- 239000012071 phase Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000007791 liquid phase Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
一种超临界回热加热发动机，包括一动力活塞，动力活塞与气缸、吸入阀、排出阀组成动力输出机构，并分别与加热器及超临界流体回热器的壳侧相连通，加热器通过管道与超临界流体回热器的管侧及循环泵的排出端相连通，循环泵的吸入端通过管道与冷凝器的液相相连通，冷凝器的气相经管道与超临界流体回热器的壳侧相连通，具有外部加热，热效率高，结构简单的优点。
A supercritical recuperative heating engine includes a power piston, the power piston forms a power output mechanism with a cylinder, a suction valve, and a discharge valve, and communicates with a heater and a shell side of a supercritical fluid regenerator respectively, and the heater passes through The pipe is connected with the tube side of the supercritical fluid regenerator and the discharge end of the circulating pump, the suction end of the circulating pump is connected with the liquid phase of the condenser through the pipe, and the gas phase of the condenser is connected with the supercritical fluid regenerator through the pipe. The shell side is connected, and has the advantages of external heating, high thermal efficiency and simple structure.
Description
The present invention relates to a kind of external heat motor, particularly a kind of supercritical backheat-heated engine.
The external heat motor is meant working medium in the internal system closed circulation, and heating process is undertaken by the wall-type heat exchange mode.Water vapor power cycle, Stirling circulation all are that typical external heat engine cycles, particularly Stirling engine have the backheat regenerator, and theoretical efficiency equals Carnot efficiency.The advantage of external heat is: pluralities of fuel be can adapt to, coal, oil, living beings, various waste heat comprised, even nuclear energy fuel; Combustion process efficient height; Discharging can strict be controlled; Working medium can be selected according to the thermal performance needs.Stirling cylic engine working medium all is to adopt gas mediums such as hydrogen, helium or air to make working medium at present, in order to obtain the higher thermal efficiency and higher power output, intrasystem inflation pressure is generally at 6.0MPa～15.0Mpa, and the actual thermal efficiency can not be satisfactory.Studies show that, utilize phase change medium to obtain higher specific power, conduct heat but also can utilize phase transition process to improve at the mid-inflation stress level, alleviate the problem (Walker that reciprocation sealing brings simultaneously, G. " stirlingEngine ", Oxford University Press, 1980; West, C.D. " Principles and Applications of Stirling Engines ", VananNostrand Reinhold, New York, 1986 ").But, how to realize the never breakthrough of phase change medium cycle heat engine.
The present invention is intended to utilize supercritical fluid backheat heating process to realize the continuous transfer principle of liquid to gas, a kind of external heat phase transformation heat release heat engine is proposed, its advantage is, except utilizing phase change medium to reduce uniform charge pressure, improve specific power, improve outside the heat transfer, can improve the efficient of heat engine, select suitable working medium, its thermal efficiency of cycle will reach the peak efficiency of other thermodynamic cycle at present.
Fig. 1 is structure principle chart of the present invention and embodiment one.
Fig. 2 is embodiments of the invention two.
Below in conjunction with accompanying drawing structural principle of the present invention and working principle are described further.
The present invention includes a power piston 1, power piston 1 is formed an active chamber with cylinder 2, active chamber is connected with external heater 9 by suction valve 3 and pipeline, external heater 9 is connected with the pipe side of supercritical fluid regenerator 5 by pipeline, the pipe side of supercritical fluid regenerator 5 is connected by the exhaust end of pipeline with recycle pump 8, the suction side of recycle pump 8 is connected by the liquid phase of pipeline with condenser 6, the gas phase of condenser 6 is connected by the housing of pipeline with supercritical fluid regenerator 5, the shell-side of supercritical fluid regenerator 5 is connected with the active chamber that power piston 1 and cylinder 2 are formed by pipeline and expulsion valve 10, heater 9 comprises external heat loop 4, and condenser 6 comprises external cooling circuit 7.Regenerator 5 is recuperators.
Working principle of the present invention is, the active chamber of being made up of power piston 1 and cylinder 2 is after suction valve 3 is opened, suction is from the High Temperature High Pressure working medium of external heater 9, externally work done, working chamber volume reaches a certain value, and suction valve 3 cuts out, after this, working chamber volume continues to increase, and continues external work done, until the inner dead point of power piston 1, power piston 1 is returned by inner dead point, expulsion valve 10 is opened immediately, arrives outer dead point up to power piston 1, and expulsion valve 10 cuts out, the gas medium of its process active chamber, be discharged into the shell-side of supercritical fluid regenerator 5, lose sensible heat after, enter condenser 6, be condensed into liquid, emit low-temperature heat quantity, then condensed fluid is recycled pump 7 raising pressure to more than the critical pressure, sends into the pipe side of supercritical fluid regenerator 5, absorb heat, the realization gas-liquid is changed continuously, and enters heater 9 by the continuation heating, improves temperature, enter the active chamber of power piston 1 and cylinder 2 compositions again by pipeline and suction valve 3, to finish circulation.
Fig. 2 is embodiments of the invention two, it is characterized in that, turbo-expander 10 has replaced the reciprocator that is made up of power piston 1, cylinder 2, suction valve 3, expulsion valve 10 among the embodiment 1, applicable to the bigger occasion of power, or the cogeneration occasion, and embodiment 1 is applicable to smaller power occasion and shifter etc.
Claims (3)
1. supercritical backheat-heated engine, comprise a power piston (1), power piston (1) is formed an active chamber with cylinder (2), it is characterized in that, active chamber is connected with heater (9) by suction valve (3) and pipeline, be connected with the shell-side of supercritical fluid regenerator (5) by expulsion valve (10) and pipeline, heater (9) is connected by the pipe side of pipeline with supercritical fluid regenerator (5), the pipe side of supercritical fluid regenerator (5) is connected by the exhaust end of pipeline with recycle pump (8) again, the suction side of recycle pump (8) is connected by the liquid side of pipeline with condenser (6), and the gas phase side of condenser (6) is connected by the shell-side of pipeline with supercritical fluid regenerator (5).
2. supercritical backheat-heated engine according to claim 1 is characterized in that, regenerator (5) is a recuperator.
3. supercritical backheat-heated engine according to claim 1 is characterized in that, the power take-off mechanism that power piston (1) and cylinder (2), suction valve (3), expulsion valve (10) are formed can replace with turbo-expander.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001137980A CN1138058C (en) | 2000-04-29 | 2000-04-29 | Supercritical backheat-heated engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001137980A CN1138058C (en) | 2000-04-29 | 2000-04-29 | Supercritical backheat-heated engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1269465A CN1269465A (en) | 2000-10-11 |
| CN1138058C true CN1138058C (en) | 2004-02-11 |
Family
ID=4583553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001137980A Expired - Fee Related CN1138058C (en) | 2000-04-29 | 2000-04-29 | Supercritical backheat-heated engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1138058C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207345A (en) * | 2011-07-07 | 2011-10-05 | 邹国富 | Energy-saving backheating type heating or refrigerating device |
| CN103452701A (en) * | 2012-08-28 | 2013-12-18 | 摩尔动力(北京)技术股份有限公司 | Circulation engine with liquid phases reflowing at different times |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147878A (en) * | 2012-02-11 | 2013-06-12 | 摩尔动力(北京)技术股份有限公司 | Phase cycling engine for hot cylinder |
| CN102562356A (en) * | 2012-03-07 | 2012-07-11 | 徐大江 | Outer heat machine |
| CN103291491A (en) * | 2012-05-22 | 2013-09-11 | 摩尔动力(北京)技术股份有限公司 | Liquid flow phase cycle engine |
| CN103644041B (en) * | 2012-05-22 | 2016-08-17 | 摩尔动力(北京)技术股份有限公司 | Roots mechanism entropic cycle engine |
| CN103382901A (en) * | 2012-06-02 | 2013-11-06 | 摩尔动力(北京)技术股份有限公司 | Liquid flow phase cycle engine |
| CN103306750A (en) * | 2012-06-07 | 2013-09-18 | 摩尔动力(北京)技术股份有限公司 | Vapour-liquid operation unit |
| CN103306849A (en) * | 2012-06-08 | 2013-09-18 | 摩尔动力(北京)技术股份有限公司 | Combined piston airstream phase circulating engine |
| CN103306848B (en) * | 2012-06-11 | 2015-05-20 | 摩尔动力(北京)技术股份有限公司 | Combined piston liquid stream phase circulating engine |
| CN103334803A (en) * | 2012-06-11 | 2013-10-02 | 摩尔动力(北京)技术股份有限公司 | Built-up piston steam engine |
| CN103362685A (en) * | 2012-06-13 | 2013-10-23 | 摩尔动力(北京)技术股份有限公司 | Reciprocating channel phase circulation engine |
| CN103470396A (en) * | 2012-06-16 | 2013-12-25 | 摩尔动力(北京)技术股份有限公司 | Phase-circulation engine with conjugated and reciprocated channel |
| CN103306847A (en) * | 2012-06-19 | 2013-09-18 | 摩尔动力(北京)技术股份有限公司 | Gas working phase circulating engine |
| CN103306846B (en) * | 2012-07-07 | 2015-05-20 | 摩尔动力(北京)技术股份有限公司 | Air flow circulating engine |
| CN103452703A (en) * | 2012-08-14 | 2013-12-18 | 摩尔动力(北京)技术股份有限公司 | Multi-combustion-chamber reciprocating flow fluid passage and engine thereof |
| CN103452702A (en) * | 2012-08-28 | 2013-12-18 | 摩尔动力(北京)技术股份有限公司 | Differential time backflow phase circulation engine |
| CN103573466B (en) * | 2012-08-31 | 2015-12-09 | 摩尔动力(北京)技术股份有限公司 | Out-of-phase phase cycle engine |
| CN104500263B (en) * | 2014-11-18 | 2016-01-20 | 西安交通大学 | A kind of multilayer pentagon formula Stirling engine for waste incineration waste heat recovery |
-
2000
- 2000-04-29 CN CNB001137980A patent/CN1138058C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207345A (en) * | 2011-07-07 | 2011-10-05 | 邹国富 | Energy-saving backheating type heating or refrigerating device |
| CN103452701A (en) * | 2012-08-28 | 2013-12-18 | 摩尔动力(北京)技术股份有限公司 | Circulation engine with liquid phases reflowing at different times |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1269465A (en) | 2000-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1138058C (en) | Supercritical backheat-heated engine | |
| EP2406485B1 (en) | Heat engine with regenerator and timed gas exchange | |
| CN101509437B (en) | Highly effective high temperature external combustion engine | |
| US5924305A (en) | Thermodynamic system and process for producing heat, refrigeration, or work | |
| US4455826A (en) | Thermodynamic machine and method | |
| CN215213717U (en) | A two-stage free-piston Stirling generator | |
| KR101018379B1 (en) | Hermetic external combustion engine and its output method using temperature difference of working fluid | |
| CN112523892B (en) | Heat-absorption type engine, application and use method thereof | |
| CN107636261B (en) | Supercritical steam cycle method including isothermal expansion and include the fluid pressure type Energy extraction for the round-robin method free-piston heat engine | |
| CN203717159U (en) | External-heating engine | |
| US6003312A (en) | Engine | |
| CN1034246A (en) | Low backpressure regenerating condensed steam type turbine equipment | |
| CN1138952C (en) | Supercritical backheat heated heat pump unit driven thermodynamically | |
| WO2022257444A1 (en) | Binary working medium heat energy power device | |
| GB2396887A (en) | Extended cycle reciprocating Stirling engine | |
| RU2189481C2 (en) | Engine design and method of operation | |
| CN201367951Y (en) | Efficient high-temperature external combustion engine | |
| JPS6052307B2 (en) | complex institution | |
| CN221703854U (en) | Middle-low temperature stering generator set | |
| CN110671285B (en) | A working medium circulation system | |
| JPWO2006126241A1 (en) | Stirling engine and pressure difference generation method for Stirling engine | |
| KR20060071827A (en) | External combustion engine with integrated engine cylinder, regenerator and cooler | |
| RU1089U1 (en) | Gas piston machine with external heat exchange | |
| US20140208732A1 (en) | Direct combustion type plunger hydraulic pump | |
| KR200435918Y1 (en) | External combustion engine with integrated engine cylinder, regenerator and cooler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040211 |