CN101825040B - Heat energy recovery system of diesel generator - Google Patents
Heat energy recovery system of diesel generator Download PDFInfo
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- CN101825040B CN101825040B CN2009100469827A CN200910046982A CN101825040B CN 101825040 B CN101825040 B CN 101825040B CN 2009100469827 A CN2009100469827 A CN 2009100469827A CN 200910046982 A CN200910046982 A CN 200910046982A CN 101825040 B CN101825040 B CN 101825040B
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Abstract
The invention discloses a heat energy recovery system of a diesel generator, which comprises a diesel generator main body and a main water tank for storing water, wherein the diesel generator main body comprises a diesel generator, a waste gas exhaust pipeline and a machine oil cooling loop; the main water tank is provided with a water inlet and a water outlet; the water inlet is communicated with the water outlet through a water circulating pipeline; the water circulating pipe is provided with a water pump system for providing power for water circulation; the water circulating pipeline is sequentially connected with the hot water exchanger and the hot gas exchanger from the water outlet of the autonomous water tank; and the water circulating pipeline provides heat energy for a steam air conditioner. The heat energy recovery system of the diesel generator is provided with a multi-heat energy recovery system and a temperature control system, wherein the multi-heat energy recovery system fully recovers the heat energy dissipated by a diesel engine of the diesel generator; and the temperature control system timely adjusts the temperature of a plurality of key points of the diesel generator and ensures that the diesel generator is operated in an optimal state.
Description
Technical field
The present invention relates to a kind of diesel generator; Be particularly related to a kind of heat reclaiming system of diesel generator; To there being the big characteristics of energy loss in the diesel generator running; Improve the diesel generator energy utilization rate through heat recovery efficiently, thereby realize the energy-conservation and low emission purpose of diesel generator.
Background technique
The development and utilization of the energy is a global problem, and it is directly connected to human existence and development.In the recent period; The energy-saving and cost-reducing important process that has become China central authorities to local governments at various levels, according to Eleventh Five-Year Plan, China will realize that the per GDP energy consumption reduces by 20% at the year ends 2010; Therefore, the energy-saving and cost-reducing difficult problem of each large enterprises' urgent need solution at present that also just becomes.
Along with the China's economic fast development, the All aspects of of the contradiction of electric power and economic development puzzlement national economy, a lot of enterprises, public institution and even government department all have diesel generating set, make the application of the power-saving technology of diesel generating set have bright prospects; And the energy-conservation diesel generator group system characteristics that should combine of diesel generating set are conceived in the application of power-saving technology of diesel engine.
Be born so far from diesel engine, under the Driving force of market, diesel engine is always to high power character, high reliability; Low emission, low oil consumption direction develops, and many new technologies are applied to diesel engine, like charge inter cooling; High-pressure injection, electronic control, chamber structure optimization; Exhaust gas recirculation, exhaust after-treatment, Optimal Structure Designing etc.Raising along with petroleum resources minimizing and environmental requirement; Require further strict to engine fuel economy and emission performance; Though above-mentioned The application of new technique helps to improve diesel engine performance, its high expense also makes diesel engine cost of production and maintenance cost improve constantly.
Usually; The diesel engine thermal efficiency is about 35-45%; Then be cooled medium (such as water or air), lubricant oil or waste gas of other energy is taken away; Wherein the heat taken away through cooling medium of chamber wall accounts for the 15-35% of total amount of heat, and when sub load, this thermal loss proportion is also much bigger; Internal-combustion engine cooling system is design considerations with the heat dissipating capacity in big when load mainly; Because incendivity mixed gas thermal discharge reduces when low-load, and the cooling system heat dissipating capacity still remains unchanged, make this moment to occur " cold excessively "; Thereby the chamber wall surface temperature reduces the radiation loss increase.Because the low chill that causes of chamber wall surface temperature is thickeied, the HC emissions composition is increased simultaneously.Lubricating oil temperature is spent low, and the mechanical friction acting increases, parts wear aggravation, engine fuel economy, reliability variation.
Summary of the invention
Technical problem to be solved by this invention provides heat energy recovery system of diesel generator, has multiple heat reclaiming system, fully reclaims the heat energy that the DENG of diesel generator gives out; Have temperature control system, the temperature of a plurality of key points of diesel generator is adjusted in good time, guarantee that diesel generator is operated in the optimum state.
Technical problem to be solved by this invention can realize through following technological scheme:
Heat energy recovery system of diesel generator comprises a diesel generator main body, and said diesel generator main body comprises DENG, exhaust emission pipe, machine oil cooling circuit, by the generator of said diesel engine drives,
It is characterized in that: also comprise the main water box of a store water, said main water box is provided with a water intake and water outlet, and said water intake and water outlet are communicated with through a water circulating pipe, and said water circulating pipe is provided with the water pump system that power is provided for water cycle;
Be equipped with between said water circulating pipe and exhaust emission pipe and promote both to carry out the hot water exchanger of heat exchange; Be equipped with between said water circulating pipe and machine oil cooling circuit and promote both to carry out the hot gas exchanger of heat exchange; Said water circulating pipe connects said hot water exchanger, said hot gas exchanger successively from the water outlet of main water box;
Said water circulating pipe also connects a steam air-conditioning, and said water circulating pipe back warp is crossed the water of said hot water exchanger and the heating of said hot gas exchanger when itself lowers the temperature, for the steam air-conditioning provides heat energy.
Above-mentioned design has been reclaimed the heat in the machine oil cooling circuit effectively through said hot water exchanger, can save original fan for the cooling of machine oil cooling circuit, thereby reduce cost, saves energy consumption.Through said hot gas exchanger, the heat that carries in effective waste gas that must reclaim discharge makes the harmful matter of a large amount of gaseous states be able to solidify, and reduces pollution of atmosphere.Through said hot water exchanger, said hot gas exchanger, the heat of recovery is that said steam air-conditioning provides energy, is able to utilize once more.
Said exhaust emission pipe is provided with a waste gas recovering device at said hot gas exchanger rear; Said waste gas recovering device is provided with a steam inlet, and said steam inlet is communicated with the steam outlet of said steam air-conditioning, and the steam of excess temperature is regulated in said steam outlet output through the steam air-conditioning.Said steam air-conditioning is through adjusting the temperature of the steam of exporting, and the temperature in the control waste gas recovering device, and then the temperature of the waste gas of control discharge make the harmful matter curing in the waste gas, are able to remove.
Said water circulating pipe is provided with a solar heater in the part that is positioned at said hot water exchanger and said hot gas exchanger, and the water in the said water circulating pipe is heated.This design not only makes the water in the water circulating pipe reclaim the heat that DENG produces, and has also absorbed extraneous heat energy, can further reach the effect of energy saving.
Said heat energy recovery system of diesel generator also comprises an automatic control system; Said automatic control system; Comprise a microcomputer control module, a sensor groups, a controller group, said sensor groups connects the microcomputer control module, and the microcomputer control module connects the controller group;
Said sensor groups comprises that one is positioned at the water pump system water outlet place of said water circulating pipe, detects the water pressure sensor of hydraulic pressure; One is positioned at the water pump system water outlet place of said water circulating pipe, detects first cooling-water temperature sensor of water temperature; One is positioned at the solar heater rear of said water circulating pipe, detects second cooling-water temperature sensor of water temperature; One is positioned at the said hot gas exchanger rear of said water circulating pipe, detects the 3rd cooling-water temperature sensor of water temperature; One is positioned at the said steam air-conditioning rear of said water circulating pipe, detects the 4th cooling-water temperature sensor of water temperature; Each sensor connects said microcomputer control module respectively;
Said controller group comprise control of pump system output power water pump controller, be used to control the steam air-conditioner controller of steam air-conditioning, water pump controller is connected said microcomputer control module respectively with the steam air-conditioner controller.
Above-mentioned design; Temperature through each key point in the said water circulating pipe of each sensor acquisition; By the microcomputer control module temperature information is analyzed, and then the working condition of control of pump system and steam air-conditioning, the system of assurance is in the optimum state of energy recovery.
Said sensor groups also comprises being positioned at the machine oil cooling circuit, detects the 5th temperature transducer of the cooling water temperature that flows back to DENG; Be arranged in said exhaust emission pipe, with the 6th temperature transducer of waste gas recovering device joint, the 5th temperature transducer, the 6th temperature transducer connect the microcomputer control module respectively.
The 5th temperature transducer in the above-mentioned design, the 6th temperature transducer are respectively said microcomputer control module the temperature of DENG cooling water, the EGT of entering waste gas recovering device are provided.The temperature of regulating the DENG cooling water helps improving DENG efficient.The microcomputer control module obtains the temperature of DENG cooling water through the 5th temperature transducer, and then through water pump system, steam air-conditioning etc., regulates and control, and guarantees that DENG has higher working efficiency.
The 6th sensor provides temperature parameter for the microcomputer control module, and the microcomputer control module is according to the temperature of this temperature parameter control steam air-conditioning to the steam of waste gas recovering device output.Harmful matter in effective curing and the removal waste gas.
Description of drawings
Fig. 1 is a structural principle schematic representation of the present invention.
Fig. 2 is a structural representation of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
With reference to Fig. 1, Fig. 2, heat energy recovery system of diesel generator comprises DENG 1, exhaust emission pipe 12, machine oil cooling circuit 13, by the generator 7 of said diesel engine drives.Also comprise the main water box 2 of a store water, main water box 2 is provided with a water intake and water outlet.Water intake and water outlet are communicated with through a water circulating pipe 21, and water circulating pipe 21 is provided with the water pump system 22 that power is provided for water cycle.
12 of water circulating pipe 21 and exhaust emission pipes are equipped with and promote both to carry out the hot water exchanger 23 of heat exchange.13 of water circulating pipe 21 and machine oil cooling circuits are equipped with and promote both to carry out the hot gas exchanger 24 of heat exchange.Water circulating pipe 21 also connects a steam air-conditioning 3.The water of water circulating pipe 21 back warp superheated water exchangers 23 and 24 heating of hot gas exchanger is when itself lowers the temperature, for steam air-conditioning 3 provides heat energy.
Above-mentioned design has been reclaimed the heat in the machine oil cooling circuit 13 effectively through hot water exchanger 23, can save original fan for 13 coolings of machine oil cooling circuit, thereby reduce cost, saves energy consumption.Through hot gas exchanger 24, the heat that carries in effective waste gas that must reclaim discharge makes the harmful matter of a large amount of gaseous states be able to solidify, and reduces pollution of atmosphere.Through hot water exchanger 23, hot gas exchanger 24, the heat of recovery is that steam air-conditioning 3 provides energy, is able to utilize once more.
Exhaust emission pipe 12 is provided with a waste gas recovering device 14 at hot gas exchanger 24 rears.Waste gas recovering device 14 is provided with a steam inlet, and the steam inlet is communicated with the steam outlet of steam air-conditioning 3.Steam outlet output is regulated the steam of excess temperature through steam air-conditioning 3.Steam air-conditioning 3 is through adjusting the temperature of the steam of exporting, and the temperature in the control waste gas recovering device, and then the temperature of the waste gas of control discharge make the harmful matter curing in the waste gas, are able to remove.Steam at first makes the waste gas cooling, and the HC composition solidifies under the situation that temperature reduces or liquefaction with other harmful components, under action of gravity, breaks away from waste gas.And then utilize steam that the water that liquefies in the waste gas is heated, form water vapor and discharge.
Heat energy recovery system of diesel generator also comprises an automatic control system.Automatic control system comprises a microcomputer control module, a sensor groups, a controller group.Sensor groups connects the microcomputer control module, and the microcomputer control module connects the controller group.
Said sensor groups comprises that one is positioned at the water pump system water outlet place of said water circulating pipe, detects the water pressure sensor 40 of hydraulic pressure; One is positioned at the water pump system water outlet place of said water circulating pipe, detects first cooling-water temperature sensor 41 of water temperature; One is positioned at the solar heater rear of said water circulating pipe, detects second cooling-water temperature sensor 42 of water temperature; One is positioned at the said hot gas exchanger rear of said water circulating pipe, detects the 3rd cooling-water temperature sensor 43 of water temperature; One is positioned at the said steam air-conditioning rear of said water circulating pipe, detects the 4th cooling-water temperature sensor 44 of water temperature; Each sensor connects said microcomputer control module respectively.Said controller group comprise control of pump system 22 output powers water pump controller, be used to control the steam air-conditioner controller of steam air-conditioning 3, water pump controller is connected said microcomputer control module respectively with the steam air-conditioner controller.
Above-mentioned design; Temperature through each key point in the said water circulating pipe 21 of each sensor acquisition; By the microcomputer control module temperature information is analyzed, and then the working condition of control of pump system 22 and steam air-conditioning 3, the system of assurance is in the optimum state of energy recovery.
Said sensor groups also comprises being positioned at machine oil cooling circuit 13, detects the 5th temperature transducer 45 of the cooling water temperature that flows back to DENG; Be arranged in said exhaust emission pipe 12, connect the microcomputer control module respectively with the 6th temperature transducer 46, the five temperature transducers 45, the 6th temperature transducer 46 of waste gas recovering device 14 joints.
The 5th temperature transducer 45 in the above-mentioned design, the 6th temperature transducer 46, be respectively said microcomputer control module provide DENG 1 cooling water temperature, get into the EGT of waste gas recovering device 14.The temperature of regulating DENG 1 cooling water helps improving DENG 1 efficient.The microcomputer control module obtains the temperature of DENG 1 cooling water through the 5th temperature transducer 45, and then through water pump system 22, steam air-conditioning 3 etc., regulates and control, and guarantees that DENG has higher working efficiency.
The 6th sensor 46 provides temperature parameter for the microcomputer control module, and the microcomputer control module is according to the temperature of this temperature parameter control steam air-conditioning 3 to the steam of waste gas recovering device output.Harmful matter in effective curing and the removal waste gas.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. heat energy recovery system of diesel generator comprises a diesel generator main body, and said diesel generator main body comprises DENG, exhaust emission pipe, machine oil cooling circuit, by the generator of said diesel engine drives,
It is characterized in that: said heat energy recovery system of diesel generator also comprises the main water box of a store water; Said main water box is provided with a water intake and water outlet; Said water intake and water outlet are communicated with through a water circulating pipe, and said water circulating pipe is provided with the water pump system that power is provided for water cycle;
Be equipped with between said water circulating pipe and exhaust emission pipe and promote both to carry out the hot water exchanger of heat exchange; Be equipped with between said water circulating pipe and machine oil cooling circuit and promote both to carry out the hot gas exchanger of heat exchange; Said water circulating pipe connects said hot water exchanger, said hot gas exchanger successively from the water outlet of main water box;
Said water circulating pipe also connects a steam air-conditioning, and said water circulating pipe back warp is crossed the water of said hot water exchanger and the heating of said hot gas exchanger when itself lowers the temperature, for the steam air-conditioning provides heat energy;
Said water circulating pipe is provided with a solar heater in the part that is positioned at said hot water exchanger and said hot gas exchanger, and the water in the said water circulating pipe is heated;
Said exhaust emission pipe is provided with a waste gas recovering device at said hot gas exchanger rear; Said waste gas recovering device is provided with a steam inlet, and said steam inlet is communicated with the steam outlet of said steam air-conditioning, and the steam of excess temperature is regulated in said steam outlet output through the steam air-conditioning; Said steam air-conditioning is through adjusting the temperature of the steam of exporting, and the temperature in the control waste gas recovering device, and then the temperature of the waste gas of control discharge make the harmful matter curing in the waste gas, are able to remove;
Said heat energy recovery system of diesel generator also comprises an automatic control system; Said automatic control system; Comprise a microcomputer control module, a sensor groups, a controller group, said sensor groups connects the microcomputer control module, and the microcomputer control module connects the controller group;
Said sensor groups comprises that one is positioned at the water pump system water outlet place of said water circulating pipe, detects the water pressure sensor of hydraulic pressure; One is positioned at the water pump system water outlet place of said water circulating pipe, detects first cooling-water temperature sensor of water temperature; One is positioned at the solar heater rear of said water circulating pipe, detects second cooling-water temperature sensor of water temperature; One is positioned at the said hot gas exchanger rear of said water circulating pipe, detects the 3rd cooling-water temperature sensor of water temperature; One is positioned at the said steam air-conditioning rear of said water circulating pipe, detects the 4th cooling-water temperature sensor of water temperature; Each sensor connects said microcomputer control module respectively;
Said controller group comprise control of pump system output power water pump controller, be used to control the steam air-conditioner controller of steam air-conditioning, water pump controller is connected said microcomputer control module respectively with the steam air-conditioner controller.
2. heat energy recovery system of diesel generator as claimed in claim 1 is characterized in that,
Said sensor groups also comprises being positioned at the machine oil cooling circuit, detects the 5th temperature transducer of the cooling water temperature that flows back to DENG; Be arranged in said exhaust emission pipe, with the 6th temperature transducer of waste gas recovering device joint, the 5th temperature transducer, the 6th temperature transducer connect the microcomputer control module respectively.
3. heat energy recovery system of diesel generator as claimed in claim 2 is characterized in that,
The 6th sensor provides temperature parameter for the microcomputer control module, and the microcomputer control module is according to the temperature of this temperature parameter control steam air-conditioning to the steam of waste gas recovering device output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100469827A CN101825040B (en) | 2009-03-04 | 2009-03-04 | Heat energy recovery system of diesel generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100469827A CN101825040B (en) | 2009-03-04 | 2009-03-04 | Heat energy recovery system of diesel generator |
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| CN101825040A CN101825040A (en) | 2010-09-08 |
| CN101825040B true CN101825040B (en) | 2012-07-04 |
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| CN2009100469827A Active CN101825040B (en) | 2009-03-04 | 2009-03-04 | Heat energy recovery system of diesel generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113091497A (en) * | 2021-04-16 | 2021-07-09 | 北京仓告科技有限公司 | Waste heat recycling system of working robot |
| CN113464252A (en) * | 2021-08-04 | 2021-10-01 | 合肥康尔信电力系统有限公司 | Diesel generator heat energy recovery system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080560A (en) * | 1992-07-03 | 1994-01-12 | 新苏舍柴油机有限公司 | The purification method of large-scale diesel engine waste gas and equipment |
| CN1295186A (en) * | 1999-10-22 | 2001-05-16 | 本田技研工业株式会社 | Waste heat recovery device of engine |
| CN1995717A (en) * | 2006-11-23 | 2007-07-11 | 郭雪兵 | Solar, IC engine, and steam engine hybrid engine |
| CN101059108A (en) * | 2007-06-06 | 2007-10-24 | 上海毅知实业有限公司 | Vehicular internal combustion engine residual heat recovery and utilization mechanism and method |
-
2009
- 2009-03-04 CN CN2009100469827A patent/CN101825040B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080560A (en) * | 1992-07-03 | 1994-01-12 | 新苏舍柴油机有限公司 | The purification method of large-scale diesel engine waste gas and equipment |
| CN1295186A (en) * | 1999-10-22 | 2001-05-16 | 本田技研工业株式会社 | Waste heat recovery device of engine |
| CN1995717A (en) * | 2006-11-23 | 2007-07-11 | 郭雪兵 | Solar, IC engine, and steam engine hybrid engine |
| CN101059108A (en) * | 2007-06-06 | 2007-10-24 | 上海毅知实业有限公司 | Vehicular internal combustion engine residual heat recovery and utilization mechanism and method |
Non-Patent Citations (1)
| Title |
|---|
| JP平1-106962A 1989.04.24 |
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