CN106036946A - Drying system and method for fruit and vegetable slices by utilizing exhaust steam heat of residual heat recovery system - Google Patents
Drying system and method for fruit and vegetable slices by utilizing exhaust steam heat of residual heat recovery system Download PDFInfo
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- CN106036946A CN106036946A CN201610385538.8A CN201610385538A CN106036946A CN 106036946 A CN106036946 A CN 106036946A CN 201610385538 A CN201610385538 A CN 201610385538A CN 106036946 A CN106036946 A CN 106036946A
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- cold side
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
- A23N12/12—Auxiliary devices for roasting machines
- A23N12/125—Accessories or details
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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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
-
- 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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a drying system and method for fruit and vegetable slices by utilizing exhaust steam heat of a residual heat recovery system, and belongs to the field of energy saving. The system comprises a drying box (2), a first condenser (4), a first turbine (5), a gas-liquid separator (6), a compressor (7), a feed pump (11), an evaporator (12), a second turbine (14), a preheater (16) and a second condenser (17). According to the system, recovery of residual heat is coupled with drying of fruits and vegetables together, so that graded utilization of heat energy is realized, and the drying system can be used for drying the fruits and vegetables while outputting mechanical work outwards; low-temperature condensation water (9) separated from condensation and expanding from the drying system can enable condensation pressure in the residual heat recovery system to be reduced, so that the output work of the second turbine (14) is increased. A heat source (13) of the system can be low grade heat, such as sunlight heat, geothermal heat, industrial flue gas waste heat, steam waste heat and the like.
Description
Technical field
The present invention relates to a kind of fruit and vegetable tablet drying system utilizing residual neat recovering system exhaust steam heat and method, belong to energy-conservation neck
Territory.
Technical background
The diversification processing of fruit and vegerable is one of some pillar ofs the economy abounding with fruit and vegerable area, and wherein dehydrate is main
One of link, major part enterprise uses convective airflow drying dehydration, only minority export enterprise to have employed vacuum freeze-drying, microwave is done
Dry and far infrared drying technology.These drying modes are all to make motive power with coal, electricity.Hot air drying energy consumption is big, to thermal sensitivity
Nutrient substance destroys big, and the flavor substance etc. such as vitamin, effumability is destroyed more；Though lyophilization, vacuum microwave drying
The shortcoming that can overcome hot air drying, but its equipment investment is relatively big, and energy consumption is high, batch processing amount is few, causes the unit cost of production significantly
Degree improves, and general garden stuff processing enterprise is difficult to bear.Being dried of general agricultural byproducts and food etc., it is desirable to baking temperature is low,
Between about 40 DEG C～70 DEG C, this is the most matched with the exhaust steam temperature of middle high-temperature residual heat recovery system, therefore the most sharp
Make good use of low-grade heat to utilizing regenerative resource, the saving energy, development low-carbon economy and environmental conservation to have the most far-reaching meaning
Justice.
Summary of the invention
It is an object of the invention to provide a kind of fruit and vegetable tablet drying system utilizing residual neat recovering system exhaust steam heat and method,
Can fully recycle sensible heat and the latent heat of residual neat recovering system exhaust steam, residual neat recovering system and fruit and vegetable drying system are carried out coupling
Close, it is achieved while the cascade utilization of heat energy, moreover it is possible to improving the output work of residual neat recovering system, its power savings advantages is obvious.
A kind of fruit and vegetable tablet drying system utilizing residual neat recovering system exhaust steam heat, it is characterised in that: this system includes being dried
Case, the first condenser, the first turbine, gas-liquid separator, compressor, working medium pump, vaporizer, the second turbine, preheater and second
Condenser；Drying baker includes cold side input port, cold side outlet port, hot side entrance and hot side outlet；First condenser include cold side input port,
Cold side outlet port, hot side entrance and hot side outlet；Gas-liquid separator includes entrance, gaseous phase outlet and liquid-phase outlet: vaporizer includes
Cold side input port, cold side outlet port, thermal source inlet and thermal source outlet；Preheater includes cold side input port, cold side outlet port, hot side entrance and heat
Side outlet；Second condenser includes cold side input port, cold side outlet port, hot side entrance and hot side outlet；Air side cold with drying baker enters
Mouthful being connected, the cold side outlet port of drying baker and the hot side entrance of the first condenser are connected, and the hot side outlet of the first condenser is by the
One turbine is connected with gas-liquid separator entrance；The gaseous phase outlet of gas-liquid separator is connected with the cold side input port of preheater, preheater
Cold side outlet port be connected with the cold side input port of drying baker by compressor；The liquid-phase outlet of gas-liquid separator and the second condenser
Cold side input port is connected, and the cold side outlet port of the second condenser is connected with environment；Room temperature aqueous water and the cold side input port of the first condenser
Being connected, the cold side outlet port of the first condenser is connected with environment；Working medium is connected with the cold side input port of vaporizer by working medium pump, evaporation
The cold side outlet port of device is connected with the hot side entrance of drying baker by the second turbine, the hot side outlet of drying baker and the hot side of preheater
Entrance is connected, and the hot side outlet of preheater and the hot side entrance of the second condenser are connected, and the hot side outlet of the second condenser passes through
Working medium pump is connected with vaporizer cold side input port；Thermal source is connected with the hot side entrance of vaporizer, the hot side outlet of vaporizer and environment phase
Even.
According to the method for work of the fruit and vegetable tablet drying system utilizing residual neat recovering system exhaust steam heat of the present invention, it is special
Levying and be to include procedure below: the air of compressor outlet enters the cold side of drying baker, the high temperature exhaust steam of working medium enters drying baker
Fruit and vegetable tablet and the air of cold side are heated by hot side；After fruit and vegetable tablet in drying baker and air heats, temperature raises, air with
Fruit and vegetable tablet is evaporated water vapour mixing after become High Temperature Moist Air and from drying baker cold side outlet port discharge, fruit and vegetable tablet then by
It is dried；High Temperature Moist Air escapes and enter the room temperature aqueous water of the lateral cold side of heat of the first condenser from the cold side outlet port of drying baker
Release latent heat and sensible heat carry out condensation cooling, and the humid air of the first hot side outlet of condenser then enters the first turbine and carries out expanding solidifying
Water also does work, and the product of the first turbine outlet enters gas-liquid separator；The air of gas-liquid separator gaseous phase outlet enters preheater
Cold side input port pre-heating temperature elevation, the air of preheater cold side outlet port again by compressor continue boosting heat up after enter drying baker cold
Side entrance；The condensation at low temperature water of gas-liquid separator liquid-phase outlet enters the cold side of the second condenser and condenses the working medium of hot side
After cooling, enter in environment；Working medium enters the cold side heat absorption evaporation of vaporizer after working medium pump boosts and becomes gas phase, then enters
Entering the second turbine expansion acting, the high temperature exhaust steam of the working medium of the second turbine outlet enters the hot side of drying baker, the hot side of drying baker
The mixed material release heat of the working medium fruit and vegetable tablet to the cold side of drying baker and air, subsequently into the lateral cold side of heat of preheater
Lower the temperature after air release sensible heat, subsequently enter the hot side of the second condenser and congealed into cryogenic fluid by the condensation at low temperature water-cooled of cold side,
Next one circulation is started after finally entering back into working medium pump supercharging.
Waste heat recovery is coupled by this system with fruit and vegetable dryness, it is achieved that the cascade utilization of heat energy, in externally output
Fruit and vegetable drying is can be used for while mechanical power；And can by the condensation at low temperature water separated through condensation, expansion in drying system
Condensing pressure in residual neat recovering system is reduced, thus improves the external output work of system.
Accompanying drawing explanation
Fig. 1 utilizes the fruit and vegetable tablet drying system of residual neat recovering system exhaust steam heat；
Label title in figure: 1, fruit and vegetable tablet, 2, drying baker, 3, humid air, the 4, first condenser, the 5, first turbine, 6, gas-liquid divides
From device, 7, compressor, 8, air, 9, condensation at low temperature water, 10, working medium, 11, working medium pump, 12, vaporizer, 13, thermal source, 14, second
Turbine, 15, the high temperature exhaust steam of working medium, 16, preheater, the 17, second condenser, 18, room temperature aqueous water.
Specific implementation method
1 illustrate that this system utilizes the running of the fruit and vegetable tablet drying system of residual neat recovering system exhaust steam heat with reference to the accompanying drawings,
First as required air circulation loop can be carried out evacuation.
The air 8 of compressor 7 outlet enters the cold side of drying baker 2, the high temperature exhaust steam 15 of the working medium hot side pair by drying baker 2
The material of cold side heats；After fruit and vegetable tablet 1 in drying baker 2 and the mixture of air 8 are heated, temperature raises, air 8 and fruit
Becoming High Temperature Moist Air 3 after the water vapour mixing being evaporated in vegetables sheet 1, fruit and vegetable tablet 1 is then dried；High Temperature Moist Air 3 is from dry
The gaseous phase outlet of dry case escapes and enter the lateral room temperature aqueous water 18 of heat of the first condenser 4 and discharges latent heat and sensible heat condenses
Cooling, the humid air 3 of the first condenser 4 outlet enters the first turbine 5 to carry out expanding solidifying water and doing work, the first turbine 5 outlet
Product then enters gas-liquid separator 6.
The air 8 of gas-liquid separator 6 gaseous phase outlet, by preheater 16 pre-heating temperature elevation, then continues to rise by compressor 7
Pressure enters drying baker 2 cold side input port after heating up.
The condensation at low temperature water 9 of gas-liquid separator 6 liquid-phase outlet enters the cold side of the second condenser 17 and enters hot side working medium 10
After row condensation cooling, enter in environment.
Working medium 10 enters the cold side heat absorption evaporation of vaporizer 12 after working medium pump 11 boosts and becomes gas phase, subsequently into the
Two turbine 14 expansion work, the high temperature exhaust steam 15 of the working medium of the second turbine 14 outlet enters the hot side of drying baker 2, drying baker 2 heat
The mixed material release heat of the working medium of the side fruit and vegetable tablet 1 to the cold side of drying baker 2 and air 8, subsequently into the warm of preheater 16
The air 8 of lateral cold side is lowered the temperature after discharging sensible heat, and the hot side subsequently entering the second condenser 17 is cold by the condensation at low temperature water 9 of cold side
Congeal into cryogenic fluid, starts next one circulation after finally entering back into working medium pump 11 supercharging.
Claims (2)
1. the fruit and vegetable tablet drying system utilizing residual neat recovering system exhaust steam heat, it is characterised in that:
This system includes: drying baker (2), the first condenser (4), the first turbine (5), gas-liquid separator (6), compressor (7), work
Matter pump (11), vaporizer (12), the second turbine (14), preheater (16) and the second condenser (17)；
Drying baker (2) includes cold side input port, cold side outlet port, hot side entrance and hot side outlet；First condenser (4) includes that cold side enters
Mouth, cold side outlet port, hot side entrance and hot side outlet；Gas-liquid separator (6) includes entrance, gaseous phase outlet and liquid-phase outlet: evaporation
Device (12) includes cold side input port, cold side outlet port, hot side entrance and hot side outlet；Preheater (16) includes that cold side input port, cold side go out
Mouth, hot side entrance and hot side outlet；Second condenser (17) includes cold side input port, cold side outlet port, hot side entrance and hot side outlet；
Air (8) is connected with drying baker (2) cold side input port, and the cold side outlet port of drying baker (2) and the hot side of the first condenser (4) enter
Mouth is connected, and the hot side outlet of the first condenser (4) is connected with gas-liquid separator (6) entrance by the first turbine (5)；
The gaseous phase outlet of gas-liquid separator (6) is connected with the cold side input port of preheater (16), and the cold side outlet port of preheater (16) leads to
Overcompression machine (7) is connected with the cold side input port of drying baker (2)；
The liquid-phase outlet of gas-liquid separator (6) and the cold side input port of the second condenser (17) are connected, the second condenser (17) cold
Side outlet is connected with environment；Room temperature aqueous water (18) is connected with the cold side input port of the first condenser (4), the first condenser (4)
Cold side outlet port is connected with environment；
Working medium (10) is connected with the cold side input port of vaporizer (12) by working medium pump (11), and the cold side outlet port of vaporizer (12) passes through
Second turbine (14) is connected with the hot side entrance of drying baker (2), and the hot side outlet of drying baker (2) enters with the hot side of preheater (16)
Mouth is connected, and the hot side outlet of preheater (16) and the hot side entrance of the second condenser (17) are connected, the heat of the second condenser (17)
Side outlet is connected with vaporizer (12) cold side input port by working medium pump (11)；The hot side entrance phase of thermal source (13) and vaporizer (12)
Even, vaporizer (12) hot side outlet is connected with environment.
The method of work of the fruit and vegetable tablet drying system utilizing residual neat recovering system exhaust steam heat the most according to claim 1, its
It is characterised by including procedure below:
The air (8) that compressor (7) exports enters drying baker (2) cold side, and the high temperature exhaust steam (15) of working medium enters drying baker (2)
Fruit and vegetable tablet (1) and the air (8) of cold side are heated by hot side；After fruit and vegetable tablet (1) in drying baker (2) and air (8) are heated
Temperature raises, and air (8) becomes High Temperature Moist Air (3) with the water vapour being evaporated in fruit and vegetable tablet (1) and from being dried after mixing
Case (1) cold side outlet port is discharged, and fruit and vegetable tablet (1) is then dried；High Temperature Moist Air (3) is discharged also from the cold side outlet port of drying baker (2)
Room temperature aqueous water (18) the release latent heat and the sensible heat that enter the lateral cold side of heat of the first condenser (4) are lowered the temperature, the first condensation
The humid air (3) of device (4) hot side outlet enters the first turbine (5) to carry out expanding solidifying water and doing work, the product that the first turbine (5) exports
Thing enters gas-liquid separator (6)；
The air (8) of gas-liquid separator (6) gaseous phase outlet enters the cold side input port pre-heating temperature elevation of preheater (16), preheater (16)
The air (8) of cold side outlet port continues to enter drying baker (2) cold side input port after boosting heats up by compressor (7) again；
The condensation at low temperature water (9) of gas-liquid separator (6) liquid-phase outlet enters the cold side (17) of the second condenser (17) to hot side
After working medium (10) carries out condensation cooling, enter in environment；
Working medium (10) enters the cold side heat absorption evaporation of vaporizer (12) after working medium pump (11) boosts and becomes gas phase, subsequently into
Second turbine (14) expansion work, the high temperature exhaust steam (15) of the working medium that the second turbine (14) exports enters the hot side of drying baker (2),
The mixed material release heat of the working medium of drying baker (2) the hot side fruit and vegetable tablet (1) to drying baker (2) cold side and air (8), then
Lower the temperature after air (8) the release sensible heat of the lateral cold side of heat entering preheater (16), subsequently enter the heat of the second condenser (17)
Side is condensed into cryogenic fluid by the condensation at low temperature water (9) of cold side, starts the next one and follow after finally entering back into working medium pump (11) supercharging
Ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610385538.8A CN106036946B (en) | 2016-06-03 | 2016-06-03 | Utilize the fruit and vegetable tablet drying system and method for residual neat recovering system exhaust steam heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610385538.8A CN106036946B (en) | 2016-06-03 | 2016-06-03 | Utilize the fruit and vegetable tablet drying system and method for residual neat recovering system exhaust steam heat |
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| Publication Number | Publication Date |
|---|---|
| CN106036946A true CN106036946A (en) | 2016-10-26 |
| CN106036946B CN106036946B (en) | 2018-01-16 |
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| CN201610385538.8A Expired - Fee Related CN106036946B (en) | 2016-06-03 | 2016-06-03 | Utilize the fruit and vegetable tablet drying system and method for residual neat recovering system exhaust steam heat |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643021A (en) * | 2016-11-09 | 2017-05-10 | 南京航空航天大学 | Co-production electric xylitol concentrating and crystal drying system and method |
| CN106938145A (en) * | 2017-03-16 | 2017-07-11 | 江苏乐科节能科技股份有限公司 | The direct driving machine tool vapor recompression evaporation drying system and method for wind-force |
| CN107594583A (en) * | 2017-09-26 | 2018-01-19 | 南昌航空大学 | A kind of energy-efficient drying device of fruits and vegetables low-pressure superheated steam and method |
| CN107647446A (en) * | 2017-09-26 | 2018-02-02 | 南昌航空大学 | A kind of fruits and vegetables low-pressure superheated steam dries exhaust steam residual heat two-stage heat pump retracting device and method |
| CN108202076A (en) * | 2018-01-02 | 2018-06-26 | 大连理工大学 | A kind of pump coupled heat biological heat anhydration system and method |
| 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 |
| CN110975310A (en) * | 2019-12-23 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Closed efficient waste heat utilization circulating system of wet air turbine compressor |
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| JP2009106266A (en) * | 2007-10-31 | 2009-05-21 | Jibu Lee Koun | Coffee roaster |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106643021A (en) * | 2016-11-09 | 2017-05-10 | 南京航空航天大学 | Co-production electric xylitol concentrating and crystal drying system and method |
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| CN107647446A (en) * | 2017-09-26 | 2018-02-02 | 南昌航空大学 | A kind of fruits and vegetables low-pressure superheated steam dries exhaust steam residual heat two-stage heat pump retracting device and method |
| CN108202076A (en) * | 2018-01-02 | 2018-06-26 | 大连理工大学 | A kind of pump coupled heat biological heat anhydration system and method |
| 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 |
| CN110975310A (en) * | 2019-12-23 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Closed efficient waste heat utilization circulating system of wet air turbine compressor |
| CN110975310B (en) * | 2019-12-23 | 2022-04-19 | 东方电气集团东方汽轮机有限公司 | Closed efficient waste heat utilization circulating system of wet air turbine compressor |
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