CN104880051B - The biomass drying system and method for latent heat and sensible heat are reclaimed simultaneously - Google Patents
The biomass drying system and method for latent heat and sensible heat are reclaimed simultaneously Download PDFInfo
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- CN104880051B CN104880051B CN201510291314.6A CN201510291314A CN104880051B CN 104880051 B CN104880051 B CN 104880051B CN 201510291314 A CN201510291314 A CN 201510291314A CN 104880051 B CN104880051 B CN 104880051B
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
It is a kind of while reclaim the biomass drying system and method for latent heat and sensible heat, belong to energy-saving field.The system includes regenerator（2）, heater（4）, waste heat regenerator（6）, condenser（7）, gas-liquid separator（8）, compressor（9）, working medium pump（13）And turbine（14）.The system passes through compressor（9）Circulation air is recycled（10）Sensible heat, while waste heat regenerator（6）Latent heat and sensible heat to High Temperature Moist Air are reclaimed, and organic Rankine bottoming cycle turbine（14）Output work is meeting compressor（9）And working medium pump（13）Under conditions of power consumption, externally also certain net work output.The system can be with low-grade heats such as underground heat, sunlight heat and industrial waste heats as thermal source, can be used for the low temperature drying of the biomass such as cereal, tobacco and timber, certain net work is externally exported simultaneously, more conventional air biomass drying process has the efficient advantage of whole energy.
Description
Technical field
The present invention relates to a kind of while the biomass drying system and method for recovery latent heat and sensible heat, belong to energy-saving field.
Technical background
Drying is one of common preprocess method that biomass are preserved for a long time, at present existing various drying means and technology quilt
The drying of different kind organism matter is widely used in, wherein it is one of current common method to be air-dried.According to air in high temperature and low temperature
Under the conditions of there is different wettability powers, by the method that heats using the moisture in high temperature air organism-absorbing matter, and pass through
Moisture in the method condensation air of cooling is the biomass air drying proposal of main use at present.However, because heating is empty
Gas needs to consume substantial amounts of heat energy, and reduces air themperature and discharge substantial amounts of low-grade heat, and needs consumption substantial amounts of cold
But medium, therefore regular air biomass drying process needs to consume substantial amounts of energy.There is part researcher to propose circulation air
Method carry out the power-economizing method of recovery section used heat, however it is necessary that increase circulating pump, and circulating pump can consume substantial amounts of machinery
Work(.Therefore, the energy consumption for how reducing air drying process is the important research direction of biomass drying process reducing energy consumption from now on.
The content of the invention
It is an object of the invention to provide a kind of while the biomass drying system and method for recovery latent heat and sensible heat, can fill
Divide the sensible heat and latent heat for recycling humid air, the thermal efficiency is high, and energy-saving effect is obvious.
It is a kind of while reclaiming the biomass drying system of latent heat and sensible heat, it is characterised in that：The system includes：Regenerator,
Heater, waste heat regenerator, condenser, gas-liquid separator, compressor, working medium pump and turbine.Regenerator includes cold side input port, cold
Side outlet, hot side entrance and hot side outlet.Heater include cold side input port, gaseous phase outlet and dried object outlet, thermal source inlet and
Thermal source outlet；Waste heat regenerator includes cold side input port, cold side outlet port, hot side entrance and hot side outlet；Condenser enters including cold side
Mouth, cold side outlet port, hot side entrance and hot side outlet；Gas-liquid separator includes entrance, gaseous phase outlet and liquid-phase outlet.Biomass with
Regenerator cold side input port is connected, and regenerator cold side outlet port is connected with heater cold side input port, and heater gaseous phase outlet is returned with waste heat
Hot device hot side entrance is connected, and the outlet of heater dried object is connected with environment.Thermal source working medium is connected with heater hot side entrance, heating
Device hot side outlet is connected with environment.Waste heat regenerator hot side outlet is connected with gas-liquid separator entrance, and gas-liquid separator gas phase goes out
Mouth is connected by compressor with heater cold side input port, and gas-liquid separator liquid-phase outlet is connected with regenerator hot side entrance, backheat
Device hot side outlet is connected with environment.Organic working medium is connected by working medium pump with waste heat regenerator cold side input port, and waste heat regenerator is cold
Side outlet is connected by turbine with condenser hot side entrance, and condenser hot side outlet is connected with working medium pump, cooling medium with condensation
Device cold side input port is connected, and condenser cold side outlet port is connected with environment.
The method of work of the biomass drying system of latent heat and sensible heat is reclaimed while described, it is characterised in that including following
Process：After condensed water preheating of the biomass by regenerator cold side by its hot side, into heater cold side input port, while compressor
The circulation air of outlet is entered by heater hot side also into heater cold side input port, thermal source working medium to the material of heater cold side
Row heating, then enters environment from heater hot side outlet.The biomass of heater cold side and the mixture of air are warm after being heated
Degree is raised, and the moisture evaporation in biomass out and gets into the air, and biomass itself are dried and from the biomass of heater
Outlet discharge, High Temperature Moist Air then escapes and enter waste heat regenerator hot side entrance from the gaseous phase outlet of heater, is returned to waste heat
Temperature reduction after the organic working medium release sensible heat and latent heat of hot device cold side, waste heat regenerator cold side organic working medium is steamed after absorbing heat
Hair.The air of waste heat regenerator hot side outlet carries out gas-liquid separation with condensed water mixture into gas-liquid separator.Gas-liquid separation
Device gaseous phase outlet material enters heater hot side entrance, the condensation of gas-liquid separator liquid-phase outlet after compressor boosts and heats up
After water is preheated into regenerator hot side to biomass, environment is entered from regenerator hot side outlet.Organic working medium is by working medium
After pump boosting, evaporation is changed into gas phase after being absorbed heat into waste heat regenerator cold side, and subsequently into turbine expansion acting, turbine outlet is weary
Gas enters condenser hot side entrance, and condenser hot side organic working medium is condensed into liquid after discharging heat to the cooling medium of its cold side
State, next round circulation is started after finally entering back into working medium pump supercharging.
Most of heat energy of heater absorption can be reclaimed due to the system waste heat regenerator, and by releasing in the heater
Used heat is used for the evaporation of organic working medium to put the mode of latent heat and sensible heat, and organic working medium meets working medium pump and pressure in turbine acting
Under conditions of the power consumption of contracting machine, also externally exported in the presence of certain net work, therefore the system has the low advantage of overall energy consumption.
Brief description of the drawings
Fig. 1 reclaims the biomass drying system of latent heat and sensible heat simultaneously.
Label title in figure：1st, biomass, 2, regenerator, 3, thermal source working medium, 4, heater, 5, dried biomass, 6, remaining
Hot regenerator, 7, condenser, 8, gas-liquid separator, 9, compressor, 10, circulation air, 11, condensed water, 12, organic working medium, 13,
Working medium pump, 14, turbine, 15, cooling medium.
Specific implementation method
1 the running of the biomass drying system of the recovery latent heat and sensible heat is illustrated with reference to the accompanying drawings, first can be with
Air circulation loop is vacuumized as needed, it is also possible to dry under stress.
Moisture to be dried biomass 1 higher initially enter the cold side of regenerator 2, by the hot side of regenerator 2
After condensed water 11 is preheated, into the cold side input port of heater 4, while circulation air 10 is also into the cold side input port of heater 4, air and
Temperature is raised after the mixture of biomass absorbs the heat that 4 hot side thermal source working medium of heater 3 discharges, and high temperature air absorbs life
Humidity is improved after moisture in material, and dried biomass 5 exports discharge from the dried object of heater 4.The gaseous phase outlet of heater 4
High Temperature Moist Air enters the hot side of waste-heat recoverer 6 to temperature reduction after the release latent heat of organic working medium 12 and sensible heat of cold side, there is portion
Moisture is divided to be condensed out from air, subsequently into gas-liquid separator 8.The air of the gaseous phase outlet of gas-liquid separator 8 enters compression
Machine 9 enters back into the cold side of heater 4 after boosting, and the condensed water 11 of the liquid-phase outlet of gas-liquid separator 8 is by regenerator 2 to biomass 1
Environment is entered after raw material preheating.
Organic working medium 12 absorbs waste heat backheat by the cold side input port after the boosting of working medium pump 13 into waste heat regenerator 6
After the sensible heat and latent heat of the hot side humid air of device 6 evaporate, subsequently into the expansion work of turbine 14, turbine 14 export weary gas enter back into it is cold
Condenser 7 is changed into liquid organic working medium after being condensed, be finally pressurized by working medium pump 13 again and start next round thermodynamic cycle.
Under certain operational temperature conditions, the acting of its turbine 14 can meet working medium pump 13 to above-mentioned organic rankine cycle system
With the power consumption of compressor 9, while can also externally export certain net work.
Claims (2)
1. a kind of while reclaiming the biomass drying system of latent heat and sensible heat, it is characterised in that：
The system includes：Regenerator（2）, heater（4）, waste heat regenerator（6）, condenser（7）, gas-liquid separator（8）, compression
Machine（9）, working medium pump（13）And turbine（14）；
Regenerator（2）Including cold side input port, cold side outlet port, hot side entrance and hot side outlet；Heater（4）Including cold side input port,
Gaseous phase outlet and dried object outlet, thermal source inlet and thermal source outlet；Waste heat regenerator（6）Including cold side input port, cold side outlet port, heat
Side entrance and hot side outlet；Condenser（7）Including cold side input port, cold side outlet port, hot side entrance and hot side outlet；Gas-liquid separator
（8）Including entrance, gaseous phase outlet and liquid-phase outlet；
Biomass（1）With regenerator（2）Cold side input port is connected, regenerator（2）Cold side outlet port and heater（4）Cold side input port phase
Even, heater（4）Gaseous phase outlet and waste heat regenerator（6）Hot side entrance is connected, heater（4）Dried object is exported and environment phase
Even；Thermal source working medium（3）With heater（4）Hot side entrance is connected, heater（4）Hot side outlet is connected with environment；Waste heat regenerator
（6）Hot side outlet and gas-liquid separator（8）Entrance is connected, gas-liquid separator（8）Gaseous phase outlet passes through compressor（9）With heater
（4）Cold side input port is connected, gas-liquid separator（8）Liquid-phase outlet and regenerator（2）Hot side entrance is connected, regenerator（2）Hot side goes out
Mouth is connected with environment；
Organic working medium（12）By working medium pump（13）With waste heat regenerator（6）Cold side input port is connected, waste heat regenerator（6）Cold side goes out
Mouth passes through turbine（14）With condenser（7）Hot side entrance is connected, condenser（7）Hot side outlet and working medium pump（13）It is connected, cooling
Medium（15）With condenser（7）Cold side input port is connected, condenser（7）Cold side outlet port is connected with environment.
2. according to claim 1 while reclaiming the method for work of the biomass drying system of latent heat and sensible heat, its feature
It is to include procedure below：
Biomass（1）By regenerator（2）After cold side is by the condensed water preheating of its hot side, into heater（4）Cold side input port, together
When compressor（9）The circulation air of outlet is also into heater（4）Cold side input port, thermal source working medium（3）By heater（4）Hot side
To heater（4）The material of cold side is heated, then from heater（4）Hot side outlet enters environment；Heater（4）Cold side
Temperature is raised after the mixture of biomass and air is heated, and the moisture evaporation in biomass out and gets into the air, biomass
Itself dried and from heater（4）Biomass outlet discharge, High Temperature Moist Air is then from heater（4）Gaseous phase outlet discharge
And enter waste heat regenerator（6）Hot side entrance, to waste heat regenerator（6）The organic working medium of cold side（12）After release sensible heat and latent heat
Temperature reduction, waste heat regenerator（6）Cold side organic working medium（12）Evaporated after absorbing heat；
Waste heat regenerator（6）The air of hot side outlet enters gas-liquid separator with condensed water mixture（8）Carry out gas-liquid separation；Gas
Liquid/gas separator（8）Gaseous phase outlet material passes through compressor（9）Boosting enters heater after heating up（4）Hot side entrance, gas-liquid separation
Device（8）The condensed water of liquid-phase outlet（11）Into regenerator（2）Hot side is to biomass（1）After being preheated, from regenerator（2）Heat
Side outlet enters environment；
Organic working medium（12）By working medium pump（13）After boosting, into waste heat regenerator（6）Evaporation is changed into gas phase after cold side heat absorption,
Subsequently into turbine（14）Expansion work, turbine（14）Export weary gas and enter condenser（7）Hot side entrance, condenser（7）Hot side
Organic working medium（12）To the cooling medium of its cold side（15）Liquid is condensed into after release heat, working medium pump is finally entered back into（13）Increase
Start next round circulation after pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510291314.6A CN104880051B (en) | 2015-06-01 | 2015-06-01 | The biomass drying system and method for latent heat and sensible heat are reclaimed simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510291314.6A CN104880051B (en) | 2015-06-01 | 2015-06-01 | The biomass drying system and method for latent heat and sensible heat are reclaimed simultaneously |
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| Publication Number | Publication Date |
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| CN104880051A CN104880051A (en) | 2015-09-02 |
| CN104880051B true CN104880051B (en) | 2017-06-13 |
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| CN201510291314.6A Expired - Fee Related CN104880051B (en) | 2015-06-01 | 2015-06-01 | The biomass drying system and method for latent heat and sensible heat are reclaimed simultaneously |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781637A (en) * | 2016-03-07 | 2016-07-20 | 南京航空航天大学 | Electricity generating and drying integrated system and working method |
| CN106036946B (en) * | 2016-06-03 | 2018-01-16 | 南京航空航天大学 | Utilize the fruit and vegetable tablet drying system and method for residual neat recovering system exhaust steam heat |
| CN107763891A (en) * | 2017-10-16 | 2018-03-06 | 清华大学 | A kind of air circulation compression net for air-source heat pump units |
| CN108225004A (en) * | 2018-01-15 | 2018-06-29 | 南京航空航天大学 | Transformation heat pump drying couples humid air Waste Heat Recovery electricity generation system and its course of work |
| CN110793308A (en) * | 2019-10-10 | 2020-02-14 | 东方电气集团东方汽轮机有限公司 | Drying process system with turbine-compressor structure |
| CN111089454B (en) * | 2019-12-27 | 2022-02-11 | 科源动力科技有限公司 | Working medium pump drying method in ORC low-temperature waste heat power generation equipment |
| CN113418353B (en) * | 2021-08-23 | 2021-11-12 | 华东交通大学 | Solar ORC-based medicinal material drying device and optimization decision method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5146857A (en) * | 1988-10-18 | 1992-09-15 | Saarberg-Interplan Gesellschaft Fur Rohstoff-, Energie- Und Ingenieurtechnik Mbh | Process for the production of electrical energy and/or heating and process heat |
| DE19612186A1 (en) * | 1996-03-27 | 1997-10-02 | Steinmueller Gmbh L & C | Method of drying crude lignite, with fluidised bed dryer |
| DE10050520A1 (en) * | 2000-10-12 | 2002-04-18 | Karl Strauss | Method for operating a combustion chamber of a gas turbine powered by dried brown coal utilizes water removed from the brown coal in a fluidized bed dryer |
| CN101881191B (en) * | 2010-05-27 | 2012-10-17 | 中国电力工程顾问集团公司 | Thermal power generation system based on high-moisture lignite pre-drying upgrading and recovering technology |
| CN103307891A (en) * | 2013-05-27 | 2013-09-18 | 东南大学 | Comprehensive utilization system and method for lignite upgrading and drying energy |
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