CN102661660A - Refrigerating system waste heat recovery and solar-assisted heating and drying device - Google Patents

Refrigerating system waste heat recovery and solar-assisted heating and drying device Download PDF

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Publication number
CN102661660A
CN102661660A CN2012101701442A CN201210170144A CN102661660A CN 102661660 A CN102661660 A CN 102661660A CN 2012101701442 A CN2012101701442 A CN 2012101701442A CN 201210170144 A CN201210170144 A CN 201210170144A CN 102661660 A CN102661660 A CN 102661660A
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CN
China
Prior art keywords
air
refrigerating system
hothouse
air door
valve
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Pending
Application number
CN2012101701442A
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Chinese (zh)
Inventor
关志强
戴午子
李敏
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Guangdong University of Petrochemical Technology
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Guangdong University of Petrochemical Technology
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Application filed by Guangdong University of Petrochemical Technology filed Critical Guangdong University of Petrochemical Technology
Priority to CN2012101701442A priority Critical patent/CN102661660A/en
Publication of CN102661660A publication Critical patent/CN102661660A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse 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

Abstract

The invention discloses a refrigerating system waste heat recovery and solar-assisted heating and drying device. A first outdoor fresh air inlet is connected with a drying chamber (7) through a first air door (22), a first fan (23), a dehumidifying evaporator (4) and an exhaust heat recoverer (5). A second fresh air inlet (17) is connected with the drying chamber through a solar air heat collector (1), a second fan (2) and a second air door (3). A circulating air outlet of the drying chamber is connected with the dehumidifying evaporator through a valve (20), and a third fan (9) and a third air door (8) are connected to an exhaust port of the drying chamber. A gaseous refrigerant inlet of the exhaust heat recoverer is connected with an exhaust pipe (13) of a cold store refrigerating system through a second stop valve (18), and a liquid-state refrigerant outlet is connected with a condensate outlet pipe (14) of the cold store refrigerating system through a third stop valve (19). A refrigerant inlet of the dehumidifying evaporator is connected with a liquid supply pipe (15) of the cold store refrigerating system through a throttling valve (11), and a refrigerant outlet is connected with an air return pipe (16) of the cold store refrigerating system through a first stop valve (10). By the refrigerating system waste heat recovery and solar-assisted heating and drying device, conventional energy resources can be saved while remarkable economic benefit can be obtained, and the device is applicable to drying of food especially agricultural and sideline products.

Description

Refrigeration system waste heat recovery-solar energy assistant heating drying device
 
Technical field
The invention belongs to a kind of heat drying device; Specifically; Be a kind of refrigeration system waste heat recovery-solar energy assistant heating drying device, it combines with large-scale refrigerating system, recycles the heat extraction of refrigeration system condenser; And make device can reduce the product drying energy consumption by dry processing technology and process timely adjustment and use in conjunction with solar energy utilization system.
Background technology
Freezer is as the key link of Cold Chain Logistics, and its energy consumption is very huge.The freezer refrigerating system is made up of compressor, condenser, throttling arrangement and evaporimeter and auxiliary equipment etc.; Low-temperature low-pressure refrigerant steam is inhaled in the compressor through air intake duct; Produce the refrigerant vapour of HTHP through overcompression; Become the liquid state of cryogenic high pressure to condensation of refrigerant through condenser, carry out the liquid refrigerant that throttling becomes low-temp low-pressure through choke valve again, thereby liquid refrigerant evaporate the purpose that the absorption heat reaches refrigeration in evaporimeter.The refrigerating capacity of refrigeration system is generally all very big in the freezer; The heat of corresponding condenser discharging is also very big; Condenser in the existing big-and-middle-sized freezer generally is directly to be discharged into condensation heat in the environment as used heat, and this not only makes environment produce thermal pollution, has also wasted the energy simultaneously.In a lot of freezers, have drying process, drying is the process of removing moisture content in the material through heat and mass, and the needed energy mainly is heat energy, and drying also is the technology of a high energy consumption.Food product refrigeration is processed Waste Heat Recovery in the refrigeration system of usefulness and is used for the energy consumption of food drying, will help improving food industrialization in producing with can coefficient, reduce energy consumption of unit product, reach the purpose of energy-saving and emission-reduction.
Solar energy is clean reproducible energy, utilizes solar energy drying equipment, can carry out drying operation to agricultural byproducts; Because the temperature levels of the drying of general agricultural byproducts and food requirement is not very high, greatly between 40~70 ℃, adapt with low temperature utilization in the solar energy heat utilization field; Therefore; When utilizing the heat release of freezer condenser to carry out drying, also can according in the food drying process to the demands of different of temperature conditions, carry out assistant heating by technology utilization solar energy stage by stage; Both conventional energy resource can be saved, remarkable economic efficiency can be obtained again.
Summary of the invention
The purpose of this invention is to provide a kind of Remarkable Energy Saving refrigeration system waste heat recovery-solar energy assistant heating drying device.
Refrigeration system waste heat recovery provided by the invention-solar energy assistant heating drying device, the first outdoor new wind inlet connects hothouse through first air door, first blower fan, dehumidifying evaporimeter, exhaust gas heat recovering instrument; The second outdoor new wind inlet connects hothouse through solar energy air heat collector, second blower fan, second air door; The circulated air outlet of hothouse connects the dehumidifying evaporimeter through valve, and the exhaust outlet of hothouse is connected to the 3rd blower fan and the 3rd air door;
Wherein, the gaseous refrigerant of exhaust gas heat recovering instrument inlet is connected with freezer refrigerating system exhaust pipe through second stop valve, and liquid refrigerant outlet links to each other with freezer refrigerating system condensing liquid discharge pipe through the 3rd stop valve; The refrigerant inlet of dehumidifying evaporimeter links to each other with freezer refrigerating system feed pipe through choke valve, and refrigerant outlet passes through first stop valve and links to each other with freezer refrigerating system muffler.
In above-mentioned, the exhaust gas heat recovering instrument and second air door connect this hothouse again through collection chamber; The bottom of dehumidifying evaporimeter is connected to draining valve.
The present invention combines large-scale refrigerating system and solar energy air heat collector; Utilize the heat extraction of refrigeration system condenser and the heat of solar energy that energy required in the dry run is provided; Drive dry run; And come the conversion of engagement process and operation stage to carry out low temperature dehumidification through the dehumidifying evaporimeter, form to be fit to the open type that technology changes and the drying device of sealing.
The present invention can be according to different climatic conditions separately or unite modes such as using the recuperation of heat of freezer refrigerating system condensing, solar energy air heat collector heating and the dehumidifying of freezer refrigerating system hypothermia and come dry.Device can adopt open type, enclosed or semi-open type circulation according to the difference of dehumidification process procedure parameter.Open circulation is meant that dry air all takes from outdoorly, after apparatus processes, is used for drying, and dried air is all drained in the outdoor environment; What closed cycle was meant that dry air adopts is indoor recirculation air, does not have the introducing of outdoor new wind, and dried air recycles after by apparatus processes again; Semi-open type circulation is meant that a dry air part takes from outdoor new wind, and a part is from indoor circulation wind, and the mixing air of new wind and circulated air is used for drying after apparatus processes, and a dried air part recycles, and another part then is discharged from outdoor.
The present invention both can save conventional energy resource, can obtain remarkable economic efficiency again, was suitable for the particularly drying processing of agricultural byproducts of food.
Description of drawings
Fig. 1 is a device process principle figure of the present invention.
The specific embodiment
With reference to Fig. 1; Refrigeration system waste heat recovery provided by the invention-solar energy assistant heating drying device; The first outdoor new wind inlet connects hothouse 7 through first air door 22, first blower fan 23, dehumidifying evaporimeter 4, exhaust gas heat recovering instrument 5 through collection chamber 6 again, and this dehumidifying evaporimeter 4 and exhaust gas heat recovering instrument 5 are installed in the casing 21; The second outdoor new wind inlet 17 connects hothouse 7 through solar energy air heat collector 1, second blower fan 2, second air door 3 through collection chamber 6 again; The circulated air outlet of hothouse 7 connects dehumidifying evaporimeter 4 through valve 20, and the exhaust outlet of hothouse 7 is connected to the 3rd blower fan 9 and the 3rd air door 8.
In above-mentioned, the gaseous refrigerant of exhaust gas heat recovering instrument 5 inlet is connected with freezer refrigerating system exhaust pipe 13 through second stop valve 18, and liquid refrigerant outlet links to each other with freezer refrigerating system condensing liquid discharge pipe 14 through the 3rd stop valve 19; The refrigerant inlet of dehumidifying evaporimeter 4 links to each other with freezer refrigerating system feed pipe 15 through choke valve 11, and refrigerant outlet passes through first stop valve 10 and links to each other with freezer refrigerating system muffler 16; The bottom of dehumidifying evaporimeter 4 is connected to draining valve 12.
In the present invention; Above-mentioned all can being installed on the drying box that assembles by warming plate; Dividing plate is divided into drying box two-layer up and down; The upper strata is to place the casing that is equipped with dehumidifying evaporimeter and exhaust gas heat recovering instrument, and lower floor is a hothouse, and solar energy air heat collector is installed in the drying box top.
The present invention is when using; The new wind of introducing from the first outdoor new wind inlet and the second outdoor new wind inlet of two-way can be simultaneously or just introducing wherein a tunnel separately; Carry out the operation of above-mentioned said open type, semi-open type, also can not introduce new wind and air in the use device carries out enclosed operation.Specifically:
Open type: one tunnel outdoor new wind is after the second outdoor new wind inlet 17 introducing solar energy air heat collectors 1 are heated; Get into collection chamber 6 through second blower fan 2 and second air door 3; Simultaneously, the outdoor air on another road is treated to through the first outdoor new wind inlet, first air door 22, first blower fan 23, dehumidifying evaporimeter 4, exhaust gas heat recovering instrument 5 and also gets into collection chamber 6, two transportation work styles behind the air of high temperature low humidity and mix the back and get into hothouse 7; While valve-off 20; Start the 3rd blower fan 9 and the 3rd air door 8 of the exhaust outlet of hothouse 7, carry out the caloic exchange with the article of required drying in the hothouse 7 after, air is through the 3rd air door 8 and 9 discharges of the 3rd blower fan of hothouse 7.
Also can close first air door 22 or second air door 3, just introduce wherein one tunnel new wind.
Enclosed: close first air door 22 and second air door 3, Open valve 20, start dehumidifying evaporimeter 4, exhaust gas heat recovering instrument 5 adopts intrasystem air, dried air recycles after by apparatus processes again.
Semi-open type: one tunnel outdoor air is after the second outdoor new wind inlet 17 introducing solar energy air heat collectors 1 are heated; Get into collection chamber 6 through second blower fan 2 and second air door 3; Simultaneously; The outdoor air on another road is treated to through the first outdoor new wind inlet, first air door 22, first blower fan 23, dehumidifying evaporimeter 4, exhaust gas heat recovering instrument 5 and also gets into collection chamber 6, two transportation work styles behind the air of high temperature low humidity and mix the back and get into hothouse 7, carry out the caloic exchange with the article of required drying in the hothouse 7 after; The part air recycles through the circulated air outlet of hothouse 7; The part air is discharged by the 3rd air door 8 and the 3rd blower fan 9 of hothouse 7, and exhaust air rate equates with the resh air requirement sum that the resh air requirement and first blower fan 23 of solar energy air heat collector 1 introducing are introduced, to guarantee the air balance in the heat drying casing.
In above-mentioned; The dehumidifying evaporimeter moves or does not move according to the requirement and the parameter different choice of dehumidification process, and when the operation of dehumidifying evaporimeter, choke valve is opened; Get into the dehumidifying evaporimeter after the liquid refrigerant throttling step-down in the freezer refrigerating system feed pipe; Because dehumidifying evaporator surface temperature is lower than the dew-point temperature of handling air, air themperature reduces and produces condensate, and the low temperature and low humidity air behind the cool-down dehumidification continues to flow through exhaust gas heat recovering instrument; The absorptive condenser liberated heat, the air that becomes the high temperature low humidity gets into collection chamber.Under the more weak conditions such as rainy weather of solar radiation; Solar energy air heat collector is not devoted oneself to work; Isolated operation exhaust gas heat recovering instrument or cooperation dehumidifying evaporimeter and exhaust gas heat recovering instrument, this moment, air system can adopt open system, closed system or semi-open type system; And under fine temperature conditions of higher; Solar energy air heat collector work; After adding hot-air with solar energy air heat collector; With the hot-air from exhaust gas heat recovering instrument, or be mixed together the back dry products from the hot-air of dehumidifying evaporimeter and exhaust gas heat recovering instrument, air system can adopt open system and semi-open type system at this moment.
The present invention can reclaim refrigeration system and joint solar and be used to allocate external condition and process conditions by refrigeration and the dry collaborative work that needs, and has realized that the refrigeration system waste heat transforms and utilizes.
The pipe arrangement that this device communicates with the refrigeration system cold-producing medium must meet the requirement of refrigeration process.
Above-mentioned is preferred embodiments of the present invention; But embodiment of the present invention does not receive the restriction of above-mentioned enforcement; Other are any not to deviate from change, the modification done under spirit of the present invention and the principle, substitute, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (3)

1. refrigeration system waste heat recovery-solar energy assistant heating drying device is characterized in that, the first outdoor new wind inlet connects hothouse (7) through first air door (22), first blower fan (23), dehumidifying evaporimeter (4), exhaust gas heat recovering instrument (5); The second outdoor new wind inlet (17) connects hothouse (7) through solar energy air heat collector (1), second blower fan (2), second air door (3); The circulated air outlet of hothouse (7) connects dehumidifying evaporimeter (4) through valve (20), and the exhaust outlet of hothouse (7) is connected to the 3rd blower fan (9) and the 3rd air door (8);
Wherein, The gaseous refrigerant inlet of exhaust gas heat recovering instrument (5) is connected with freezer refrigerating system exhaust pipe (13) through second stop valve (18), and liquid refrigerant outlet links to each other with freezer refrigerating system condensing liquid discharge pipe (14) through the 3rd stop valve (19); The refrigerant inlet of dehumidifying evaporimeter (4) links to each other with freezer refrigerating system feed pipe (15) through choke valve (11), and refrigerant outlet links to each other with freezer refrigerating system muffler (16) through first stop valve (10).
2. refrigeration system waste heat recovery according to claim 1-solar energy assistant heating drying device is characterized in that, exhaust gas heat recovering instrument (5) and second air door (3) connect this hothouse (7) again through collection chamber (6).
3. refrigeration system waste heat recovery according to claim 1-solar energy assistant heating drying device is characterized in that, the bottom of dehumidifying evaporimeter (4) is connected to draining valve (12).
CN2012101701442A 2012-05-29 2012-05-29 Refrigerating system waste heat recovery and solar-assisted heating and drying device Pending CN102661660A (en)

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CN2012101701442A CN102661660A (en) 2012-05-29 2012-05-29 Refrigerating system waste heat recovery and solar-assisted heating and drying device

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Application Number Priority Date Filing Date Title
CN2012101701442A CN102661660A (en) 2012-05-29 2012-05-29 Refrigerating system waste heat recovery and solar-assisted heating and drying device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109464885A (en) * 2018-09-28 2019-03-15 浙江大学 A kind of twin-stage backheat Driven by Solar Energy runner drying system and its operation method
CN113091344A (en) * 2021-04-29 2021-07-09 四川鸿旺同宇能源科技有限公司 Freezing and drying integrated system for multiple working conditions

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2069992U (en) * 1989-10-16 1991-01-23 北京林业大学森工系 Hot pump dehumidifier
JP2006337017A (en) * 2002-10-01 2006-12-14 Sanyo Electric Co Ltd Drier
CN2861890Y (en) * 2005-11-30 2007-01-24 东莞市广大制冷有限公司 Water-cooling heat recovery units
JP2008215756A (en) * 2007-03-07 2008-09-18 Sanyo Electric Co Ltd Dry air supply device and dryer
CN202599056U (en) * 2012-05-29 2012-12-12 广东石油化工学院 Waste heat recovery-solar energy auxiliary heating drying device of refrigerating system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2069992U (en) * 1989-10-16 1991-01-23 北京林业大学森工系 Hot pump dehumidifier
JP2006337017A (en) * 2002-10-01 2006-12-14 Sanyo Electric Co Ltd Drier
CN2861890Y (en) * 2005-11-30 2007-01-24 东莞市广大制冷有限公司 Water-cooling heat recovery units
JP2008215756A (en) * 2007-03-07 2008-09-18 Sanyo Electric Co Ltd Dry air supply device and dryer
CN202599056U (en) * 2012-05-29 2012-12-12 广东石油化工学院 Waste heat recovery-solar energy auxiliary heating drying device of refrigerating system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
郭胜兰: "小型太阳能热泵联合干燥系统的设计与分析", 《制冷》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109464885A (en) * 2018-09-28 2019-03-15 浙江大学 A kind of twin-stage backheat Driven by Solar Energy runner drying system and its operation method
CN113091344A (en) * 2021-04-29 2021-07-09 四川鸿旺同宇能源科技有限公司 Freezing and drying integrated system for multiple working conditions
CN113091344B (en) * 2021-04-29 2022-04-22 四川鸿旺同宇能源科技有限公司 Freezing and drying integrated system for multiple working conditions

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Application publication date: 20120912