CN104501503A - Temperature and humidity regulating device for fruit and vegetable storehouse - Google Patents
Temperature and humidity regulating device for fruit and vegetable storehouse Download PDFInfo
- Publication number
- CN104501503A CN104501503A CN201410815973.0A CN201410815973A CN104501503A CN 104501503 A CN104501503 A CN 104501503A CN 201410815973 A CN201410815973 A CN 201410815973A CN 104501503 A CN104501503 A CN 104501503A
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- China
- Prior art keywords
- water
- heat exchanger
- humidity
- air
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 title abstract 5
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 241000746966 Zizania Species 0.000 claims description 6
- 235000002636 Zizania aquatica Nutrition 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 240000004160 Capsicum annuum Species 0.000 claims description 3
- 235000008534 Capsicum annuum var annuum Nutrition 0.000 claims description 3
- 240000008042 Zea mays Species 0.000 claims description 3
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 3
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 3
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 235000005822 corn Nutrition 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 239000005457 ice water Substances 0.000 abstract 1
- 206010009866 Cold sweat Diseases 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D13/00—Stationary devices, e.g. cold-rooms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/10—Arrangements for mounting in particular locations, e.g. for built-in type, for corner type
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Storage Of Fruits Or Vegetables (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention relates to a temperature and humidity regulating device for a fruit and vegetable storehouse. The temperature and humidity regulating device adopts a heat recovery type water-air heat exchanger. The temperature and humidity regulating device comprises the water-air heat exchanger, wherein ice water in an ice tank is sprayed onto a filler of the water-air heat exchanger, and outdoor air realizes humidification and cooling in the water-air heat exchanger; low-temperature and high-humidity air is conveyed to the storehouse for moisturization storage of fruits and vegetables; the temperature and humidity regulating device further comprises a plate type heat exchanger, gas from an exhaust hole in the storehouse performs pre-cooling with outdoor gas in the plate type heat exchanger, and the mixed gas after pre-cooling performs spraying in the water-air heat exchanger to obtain the low-temperature and high-humidity gas. Due to the adoption of heat recovery, the system can save energy;moreover, the heat exchange efficiency of the water-air heat exchanger and the stability of the system areimproved.
Description
Technical field
The present invention relates to a kind of fresh-keeping facility for fruits and vegetables bunker, be specifically related to a kind of temp and humidity regulator adopting recovery type heat water-air heat exchanger.
Background technology
Fruit and vegetable (hereinafter referred to as " fruits and vegetables ") is the requirement of mankind's lives of the people; a large amount of wastes is caused every year due to the improper of preservation; and the crisis in food of the mankind is serious more than what imagine, therefore, it is necessary for seeking a kind of suitable preserving fruit and vegetable utilizing mode.At present, most importantly adopt mechanical freezer to preserve fruits and vegetables.
Machinery freezer, when designing, usually calculates the refrigerating capacity of freezer, thus selects suitable refrigeration unit according to maximum cold load.When fruits and vegetables storage capacity reduces, owing to needing the amount of refrigeration to reduce, system will be in operation at part load, and capacity utilization reduces, and causes the rising of cost.And when certain period, special good harvest appears in the output of fruits and vegetables, cause freezer can not run under predetermined humiture requires, the freshness date of fruits and vegetables can reduce greatly.
Afterwards, there is clammy preservation technique, and utilized the air of low temperature and high relative humidity and fruits and vegetables to carry out heat and moisture transfer, reduce the dehydration of fruits and vegetables to greatest extent, extend the shelf-life of fruits and vegetables.This technology utilizes mechanical refrigeration apparatus ice making, ice-reserving, then utilizes clammy device to make air in frozen water and freezer carry out cold wet exchange, thus cools fruits and vegetables.But, this clammy preservation technique is also present in following technical problem: (1) is owing to existing GM Refrigerator Working in system, water circulation, wind circulates, there are two large independent heat exchange links, Energy Efficiency Ratio is low, and heat transfer temperature difference is large, although can utilize ice making in evening " fill out peak and move paddy ", still belong to the system of the not power saving that saves money; (2) there is cryogenic energy greatly in the exhaust system of freezer, do not reclaim, and causes the diseconomy that whole system is run.
Summary of the invention
The present invention well the defect of controlling run load, Temperature and Humidity Control aspect and humid-cool system can not run uneconomic problem to solve mechanical cold storage system storehouse, proposes a kind of recovery type heat water-air heat exchanger that adopts for the temp and humidity regulator of fruits and vegetables bunker.
Adopt recovery type heat water-air heat exchanger for a temp and humidity regulator for fruits and vegetables bunker, comprise ice machine, ice bank, ice bank is connected with extraneous source of recycled water with outlet pipe by water inlet pipe; Water-air heat exchanger, the frozen water in ice bank continuously sprays on the filler of water-air heat exchanger by water circulating pump, and outdoor air carries out decreasing temperature and increasing humidity heat exchange in water-air heat exchanger, realizes the humidification cooling of air; Bunker, the gas of low temperature and high relative humidity is transported to bunker by blower fan, carries out cooling moisture-retaining cooling to the fruits and vegetables in bunker; Also there is heat-exchangers of the plate type, the low temperature and high relative humidity gas of the exhaust outlet on bunker carries out heat exchange with outdoor gas in heat-exchangers of the plate type, carry out precooling to outdoor gas, the mist after precooling is delivered to water-air heat exchanger and is carried out spraying the gas obtaining low temperature and high relative humidity.
Metal packing is adopted in described water-air heat exchanger.
Aluminium foil and stainless steel helices is adopted in described water-air heat exchanger.
The temperature of the gas that outdoor air obtains carry out decreasing temperature and increasing humidity heat exchange in water-air heat exchanger after is lower than 2 DEG C, and humidity reaches 95%-100%.
In bunker, the fruits and vegetables of refrigeration are wild rice stem, pimento, wild rice stem, corn etc.
Present invention employs water-air heat exchanger, the gas of low temperature and high relative humidity can be obtained, fresh-keeping significant to some fruits and vegetables, main cause is that the best storage temperature of some fruits and vegetables is at about 2 DEG C, humidity requirement more than 95%, and the mechanically refrigerated type of cooling is difficult to obtain above temperature and humidity conditions.
Simultaneously, have employed plate type heat exchanger, the Low Temperature Wet cold air of discharging from bunker carries out heat exchange with the outdoor air entering plate type heat exchanger, effectively utilizes the effective energy in Low Temperature Wet cold air thus reaches the energy-conservation object of whole system, making major contribution to the energy-saving and emission-reduction of country.
Accompanying drawing explanation
Fig. 1 is the structural representation of the temp and humidity regulator of the recovery type heat water-air heat exchanger that the present invention adopts;
In figure, 1, ice machine; 2, plate type heat exchanger; 3, water-air heat exchanger; 4, bunker; 5, ice bank; 6, water circulating pump; 7, blower fan; 8, exhaust outlet; 9, drip tray; 31, water inlet pipe; 41, outlet pipe;
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, the present invention adopts ice machine 1 to produce ice cube in ice bank 5, and meanwhile, ice bank 5 is connected with extraneous source of recycled water with outlet pipe 41 by water inlet pipe 31.By water circulating pump 6, continuously the frozen water in ice bank 5 can be sprayed on the filler of water-air heat exchanger 3, realize humidification cooling.
Outdoor air is through plate type heat exchanger 2, move to water-air heat exchanger 3 and carry out decreasing temperature and increasing humidity heat exchange, because the temperature of frozen water is usually at 0 DEG C-1 DEG C, consider the heat transfer temperature difference of water-air heat exchanger 3, air themperature through water-air heat exchanger 3 generally can reach 2 DEG C-4 DEG C, and relative humidity can reach 95%-100%.Water-air heat exchanger of the present invention adopts aluminium foil and stainless steel helices, and the coefficient of heat transfer significantly increases, and generally can reach 2 DEG C or lower through the air themperature of water-air heat exchanger 3.The reduction of temperature has important meaning to the fresh-keeping of fruits and vegetables, because the best storage temperature of fruits and vegetables is generally between 0 DEG C-2 DEG C, the reduction of temperature can significantly improve the shelf life of fruits and vegetables.
Through the air of water-air heat exchanger 3, entered the storehouse body of bunker 4 by blower fan 7, storage fruits and vegetables, such as wild rice stem in the body of storehouse, pimento, wild rice stem, corn etc.Exhaust outlet 8 is arranged at the top of bunker 4, and the low temperature and high relative humidity (air in versus environmental) in bunker 4 is discharged by exhaust outlet 8.
Plate type heat exchanger 2 is used for mixing exhaust outlet 8 low temperature and high relative humidity gas out and outdoor air, the low temperature and high relative humidity gas that exhaust outlet 8 is discharged can be utilized, make outdoor air obtain precooling before entering water-air heat exchanger 3, temperature can decline 3-7 DEG C, and relative humidity can reach 70%-80%.Enter the frozen water heat exchange in water-air heat exchanger 3 again through the gas of precooling, due to Temperature Difference Ratio do not have the situation of preheating little, so the coefficient of heat transfer increases, reach energy-conservation object.
Be provided with drip tray 9 in the bottom of water-air heat exchanger 3, drip tray 9 is connected by pipeline with ice bank 5, and frozen water can be recycled.
Operation principle of the present invention is: the frozen water utilizing ice machine to produce carries out heat exchange in efficient water-air heat exchange, obtain the gas of low temperature and high relative humidity, typical temperature can be low to moderate 2 DEG C, and humidity is up to 100%, by blower fan, the gas of low temperature and high relative humidity is sent into bunker, fruits and vegetables are insured.In order to reduce energy consumption, recuperation of heat is carried out to the low temperature and high relative humidity gas of the exhaust outlet of bunker, precooling is carried out with outdoor air, cold and hot exchange reaches the object of recuperation of heat, the mist simultaneously obtaining preliminary cooling enters water-air heat exchanger 3 and is sprayed by frozen water, and owing to having a narrow range of temperature, the loss of refrigeration capacity in heat transfer process is little, improve heat exchange efficiency, reduce energy consumption.
The invention is not restricted to above-mentioned detailed description of the invention, those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, done all conversion, all drop among protection scope of the present invention.
Claims (5)
1. adopt recovery type heat water-air heat exchanger for a temp and humidity regulator for fruits and vegetables bunker, comprising:
Ice machine (1), ice bank (5), ice bank (5) is connected with extraneous source of recycled water with outlet pipe (41) by water inlet pipe (31);
Water-air heat exchanger (3), frozen water in ice bank (5) continuously sprays on the filler of water-air heat exchanger (3) by water circulating pump (6), outdoor air carries out decreasing temperature and increasing humidity heat exchange in water-air heat exchanger (3), realizes the humidification cooling of air;
Bunker (4), the gas of low temperature and high relative humidity is transported to bunker (4) by blower fan (7), carries out cooling moisture-retaining cooling to the fruits and vegetables in bunker (4);
It is characterized in that: also there is heat-exchangers of the plate type (2), the low temperature and high relative humidity gas of discharging from the exhaust outlet (8) bunker (4) carries out heat exchange with outdoor gas in heat-exchangers of the plate type (2), carry out precooling to outdoor gas, the mist after precooling is delivered to water-air heat exchanger (3) and is carried out spraying the gas obtaining low temperature and high relative humidity.
2. temp and humidity regulator as claimed in claim 1, is characterized in that: adopt metal packing in described water-air heat exchanger (3).
3. temp and humidity regulator as claimed in claim 2, is characterized in that: adopt aluminium foil and stainless steel helices in described water-air heat exchanger (3).
4. temp and humidity regulator as claimed in claim 1, is characterized in that: the temperature of the gas that outdoor air obtains carry out decreasing temperature and increasing humidity heat exchange in water-air heat exchanger (3) after is lower than 2 DEG C, and humidity reaches 95%-100%.
5. the temp and humidity regulator as described in claim 1-4, is characterized in that: in bunker, the fruits and vegetables of refrigeration are wild rice stem, pimento, wild rice stem, corn etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815973.0A CN104501503A (en) | 2014-12-23 | 2014-12-23 | Temperature and humidity regulating device for fruit and vegetable storehouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815973.0A CN104501503A (en) | 2014-12-23 | 2014-12-23 | Temperature and humidity regulating device for fruit and vegetable storehouse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104501503A true CN104501503A (en) | 2015-04-08 |
Family
ID=52942929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410815973.0A Pending CN104501503A (en) | 2014-12-23 | 2014-12-23 | Temperature and humidity regulating device for fruit and vegetable storehouse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104501503A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807275A (en) * | 2015-04-21 | 2015-07-29 | 广东海洋大学 | Ice storage clammy refrigeration system |
| CN113075949A (en) * | 2021-03-24 | 2021-07-06 | 西北大学 | Fruit vegetables storeroom CO2Automatic concentration regulating and controlling device and working method thereof |
| CN114111147A (en) * | 2021-11-16 | 2022-03-01 | 杭州电子科技大学 | Intelligent pressure difference precooling system for agricultural products by adopting fluidized ice |
| CN115698613A (en) * | 2020-11-10 | 2023-02-03 | 株式会社零度食品 | Evaporator |
-
2014
- 2014-12-23 CN CN201410815973.0A patent/CN104501503A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 王倩，戴绍碧: "湿冷保鲜技术应用及问题探讨", 《广东农业科技》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807275A (en) * | 2015-04-21 | 2015-07-29 | 广东海洋大学 | Ice storage clammy refrigeration system |
| CN115698613A (en) * | 2020-11-10 | 2023-02-03 | 株式会社零度食品 | Evaporator |
| CN113075949A (en) * | 2021-03-24 | 2021-07-06 | 西北大学 | Fruit vegetables storeroom CO2Automatic concentration regulating and controlling device and working method thereof |
| CN114111147A (en) * | 2021-11-16 | 2022-03-01 | 杭州电子科技大学 | Intelligent pressure difference precooling system for agricultural products by adopting fluidized ice |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150408 |
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| RJ01 | Rejection of invention patent application after publication |