CN106679284A - Perishable food bidirectional alternate air supply cold processing device - Google Patents
Perishable food bidirectional alternate air supply cold processing device Download PDFInfo
- Publication number
- CN106679284A CN106679284A CN201710002611.3A CN201710002611A CN106679284A CN 106679284 A CN106679284 A CN 106679284A CN 201710002611 A CN201710002611 A CN 201710002611A CN 106679284 A CN106679284 A CN 106679284A
- Authority
- CN
- China
- Prior art keywords
- air
- cold
- cooling unit
- storage
- temperature receiver
- 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.)
- Granted
Links
- 235000013305 food Nutrition 0.000 title abstract description 4
- 230000002457 bidirectional effect Effects 0.000 title abstract 3
- 238000001816 cooling Methods 0.000 claims abstract description 67
- 238000005482 strain hardening Methods 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 239000002826 coolant Substances 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 abstract 6
- 239000011148 porous material Substances 0.000 abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010413 gardening Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/363—Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in form of powder, granules, or flakes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a perishable food bidirectional alternate air supply cold processing device, which comprises a cold source and a heat preservation box body; the interior of the heat preservation box body comprises an air cooling unit, a two-position air valve and a pressure equalizing pore plate; the left end of the heat preservation box body is provided with an air cooling unit, and the right end of the heat preservation box body is provided with two pressure equalizing pore plates; the upper end and the lower end of the right side of the air cooling unit are respectively provided with a two-position air valve; the two-position air valves are provided with a first air valve baffle and a second air valve baffle; the first air valve baffle plates are respectively fixed on the upper surface and the lower surface of the heat preservation box body; the second air valve baffle plates are respectively fixed at the left ends of the pressure equalizing pore plates; the cold source and an air cooling unit in the heat preservation box form a closed loop. According to the invention, the two-position air valves are used for switching to form a bidirectional alternative air supply cooling mode, so that the cooling time is reduced, and the cooling rate and the cooling uniformity are improved.
Description
Technical field
The invention belongs to perishable items Cold Chain Logistics technical field；More particularly, to a kind of perishable items two way alternate
Air-supply cold working apparatus.
Background technology
Cold working is requisite link before perishable items storage is transported, and which includes pre-cooling and quick-freezing.Pre-cooling skill
The main application of art is gardening agricultural product, particularly fruit and vegerable.Pre-cooling operation must at source gardening product harvesting after immediately
Implement, it is therefore an objective to remove rapidly field heat, reduce respiratory intensity, reduce the invasion and attack of microorganism, prevent rotting for gardening product, most
Limits ground keeps the fresh quality of gardening product.Quick-freezing is product centre temperature is reached storage or is protected in a short period of time
A kind of technique of fresh temperature, in this temperature-fall period, the activity of microorganism and enzyme is substantially reduced, therefore extends the storage of food
Deposit the phase.
Forced draft cooling is pre-cooling and the most common mode of quick-freezing, it is adaptable to most of perishable items.But
During forced draft cooling, along airflow direction diverse location product rate of temperature fall and differ, near entrance product
Rate of cooling is fast, and slow near the product cooling speed of outlet.In order that the product of most unfavorable combination reaches final temperature, it is cold
But the time significantly will be extended, and the temperature unevenness of diverse location product will increase.Accordingly, it would be desirable to design a kind of easy
Curd food two way alternate air-supply cold working apparatus seem extremely important to reduce cool time, lift cooling uniformity.
The content of the invention
The cold working apparatus it is an object of the present invention to provide a kind of perishable items two way alternate is blown, the device pass through
Two way alternate air-supply replaces unidirectional air-supply, to improve the cooldown rate and uniformity of cold working apparatus.
To reach above-mentioned purpose, the present invention adopts following technical proposals：
A kind of perishable items two way alternate air-supply cold working apparatus include low-temperature receiver and thermal-insulating body；
Include air cooling unit, dibit air-valve and balancing orifice plate inside the thermal-insulating body；
The thermal-insulating body left end arranges air cooling unit, and right-hand member arranges two balancing orifice plates；
The right side upper and lower side of the air cooling unit is respectively provided with dibit air-valve；
The dibit air-valve is equipped with the first air-valve baffle plate and the second air-valve baffle plate；
The first air-valve baffle plate is separately fixed at the upper and lower surface of thermal-insulating body；
The second air-valve baffle plate is separately fixed at the left end of balancing orifice plate；
The low-temperature receiver forms closed circuit with the air cooling unit in thermal-insulating body.
Further, the low-temperature receiver includes direct cooled low-temperature receiver, refrigerating formula low-temperature receiver and cold storage low-temperature receiver.
Further, the direct cooled low-temperature receiver includes compressor, condenser and throttling arrangement；
The compressor, condenser throttling arrangement and air cooling unit, it is in turn connected to form cold-producing medium closed circuit.
Further, the refrigerating formula low-temperature receiver includes compressor, condenser, throttling arrangement, heat exchanger and coolant pump；It is described
Compressor, condenser, throttling arrangement and heat exchanger are in turn connected to form cold-producing medium closed circuit；
The coolant pump, heat exchanger and air cooling unit are in turn connected to form refrigerating medium closed circuit.
Further, the cold storage low-temperature receiver includes compressor, condenser, throttling arrangement, heat exchanger, coolant pump, Chu Leng
Pond and agent for storage of coldness pump；
The compressor, condenser, throttling arrangement and heat exchanger are in turn connected to form cold-producing medium closed circuit；The storage is cold
Pond, coolant pump and heat exchanger are in turn connected to form refrigerating medium closed circuit；
The agent for storage of coldness pump, storage cold drop and air cooling unit are in turn connected to form agent for storage of coldness closed circuit.
Further, blower fan is provided with the air cooling unit, in the presence of blower fan, dibit air-valve can pass through gear
The two way alternate air-supply type of cooling is realized in switching.
The present invention can be had a huge impact to cooling effect and energy consumption due to the radiating of thermal-insulating body building enclosure；Therefore
In order to reduce the radiating of building enclosure, heat-insulation plate for external is installed outside the thermal-insulating body.
Further, the air cooling unit is surface cooler or spray chamber.
Further, there is cold-producing medium in the compressor, cold-producing medium is in cold-producing medium closed circuit interior circulation；
The cold-producing medium be R22, R134a, R32, R404a, R407c, R410a, R1234yf, R1234ze, NH3Or CO2。
Further, there is refrigerating medium in the coolant pump, refrigerating medium is in refrigerating medium closed circuit interior circulation；The refrigerating medium
For ethylene glycol solution；Coolant pump is ethylene glycol solution pump.
Further, there is agent for storage of coldness in the agent for storage of coldness pump, agent for storage of coldness is in agent for storage of coldness closed circuit interior circulation；The agent for storage of coldness
For frozen water, the agent for storage of coldness pump is CHP.
The present invention can cause loss of refrigeration capacity due to the heat exchange of two-way air-valve both sides air；Therefore in order to reduce two-way wind
The heat exchange of valve both sides air, is coated with heat-insulation layer outside dibit air-valve.
Beneficial effects of the present invention are as follows：
The present invention switches over to form the two way alternate air-supply type of cooling using two dibit air-valves, is reducing cool time
While improve cooldown rate and cooling uniformity.
Description of the drawings
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail.
Fig. 1 shows the perishable items two way alternate air-supply cold working apparatus schematic diagram using direct cooled low-temperature receiver；
Fig. 2 shows the perishable items two way alternate air-supply cold working apparatus schematic diagram using refrigerating formula low-temperature receiver；
Fig. 3 shows the perishable items two way alternate air-supply cold working apparatus schematic diagram using cold storage low-temperature receiver.
Fig. 4 shows the dibit air-valve switch mode schematic diagram under positive air supply mode.
Fig. 5 shows the dibit air-valve switch mode schematic diagram under reverse air supply mode.
Wherein, 1-1：Direct cooled low-temperature receiver；1-2：Refrigerating formula low-temperature receiver；1-3：Cold storage low-temperature receiver；2：Thermal-insulating body；3：It is empty
Air cooling unit；4：First air-valve baffle plate；5：Dibit air-valve；6：Second air-valve baffle plate；7：Balancing orifice plate；8：Compressor；9：It is cold
Condenser；10：Throttling arrangement；11：Coolant pump；12：Heat exchanger；13：Agent for storage of coldness pump；14：Storage cold drop.
Specific embodiment
In order to be illustrated more clearly that the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.In accompanying drawing, similar part is indicated with identical reference.It will be appreciated by those skilled in the art that institute is concrete below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
Embodiment 1
A kind of perishable items two way alternate air-supply cold working apparatus, the device include low-temperature receiver and thermal-insulating body 2；
Include air cooling unit 3, dibit air-valve 5 and balancing orifice plate 7 inside the thermal-insulating body 2；
2 left end of the thermal-insulating body arranges air cooling unit 3, and right-hand member arranges two balancing orifice plates 7；
The right side upper and lower side of the air cooling unit 3 is respectively provided with dibit air-valve 5；
The dibit air-valve 5 is equipped with the first air-valve baffle plate 4 and the second air-valve baffle plate 6；
The first air-valve baffle plate 4 is separately fixed at the upper and lower surface of thermal-insulating body 2；
The second air-valve baffle plate 6 is separately fixed at the left end of balancing orifice plate 7；
The low-temperature receiver forms closed circuit with the air cooling unit in thermal-insulating body 2.
The low-temperature receiver includes direct cooled low-temperature receiver 1-1, refrigerating formula low-temperature receiver 1-2 and cold storage low-temperature receiver 1-3.The air is cold
But blower fan is provided with unit 3；Heat-insulation plate for external is provided with outside the thermal-insulating body 2；Insulation is coated with outside the dibit air-valve 5
Layer；The air cooling unit 3 is surface cooler or spray chamber.
As shown in figure 1, the direct cooled low-temperature receiver 1-1 includes compressor 8, condenser 9 and throttling arrangement 10；It is described
Compressor 8, condenser 9, throttling arrangement 10 are in turn connected to form cold-producing medium closed circuit with air cooling unit 3；The air
Vaporizer of the cooling unit 3 for cold-producing medium closed circuit, cold-producing medium are evaporated and the heat of absorption air in air cooling unit 3
Amount.
As shown in Fig. 2 the refrigerating formula low-temperature receiver 1-2 includes compressor 8, condenser 9, throttling arrangement 10,12 and of heat exchanger
Coolant pump 11；The compressor 8, condenser 9, throttling arrangement 10 are in turn connected to form cold-producing medium closure ring with heat exchanger 12
Road；The coolant pump 11, heat exchanger 12 are in turn connected to form to form refrigerating medium closed circuit with air cooling unit 3；It is described
Vaporizer of the heat exchanger 12 for cold-producing medium closed circuit, cold-producing medium and refrigerating medium are exchanged heat in heat exchanger 12, after cooling
Refrigerating medium sends into 3 absorption air heat of air cooling unit by coolant pump 11.
As shown in figure 3, the cold storage low-temperature receiver 1-3 includes compressor 8, condenser 9, throttling arrangement 10, heat exchanger 12, load
Cryogenic fluid pump 11, storage cold drop 14 and agent for storage of coldness pump 13；The compressor 8, condenser 9, throttling arrangement 10 are connected successively with heat exchanger 12
Connect to form cold-producing medium closed circuit；The storage cold drop 17, coolant pump 11 are in turn connected to form refrigerating medium closure with heat exchanger 12
Loop；The agent for storage of coldness pump 13, storage cold drop 14 are in turn connected to form agent for storage of coldness closed circuit with air cooling unit 3；It is described to change
Vaporizer of the hot device 12 for cold-producing medium closed circuit, cold-producing medium and refrigerating medium are exchanged heat in heat exchanger 12, the load after cooling
Cryogen carries out cold-storage by the heat that coolant pump 11 sends into the storage absorption agent for storage of coldness of cold drop 14, and after completing cold-storage, agent for storage of coldness passes through
Agent for storage of coldness pump 13 sends into the heat of 3 absorption air of air cooling unit.
Air current composition mode of the air in thermal-insulating body 2 is illustrated with reference to Fig. 4 and Fig. 5：
As shown in figure 4, keeping off to corresponding first air-valve when the dibit air-valve 5 of 3 right side upper end of air cooling unit is switched to
Plate 4；When the dibit air-valve 5 of 3 right side lower end of air cooling unit switches to corresponding second air-valve baffle plate 6, in the effect of blower fan
Under, the Cryogenic air after air cooling unit 3 is sent into from top balancing orifice plate 7, absorbs the high temperature air after product heat
Balancing orifice plate 7 returns to air cooling unit 3 and cools down from below, and arrow is followed air clockwise as shown in FIG.
Ring, the product cooling of top is fastest as shown in FIG., and the product cooling speed of lower section is most slow.
As shown in figure 5, when the dibit air-valve 5 of 3 right side upper end of air cooling unit switches to corresponding second air-valve baffle plate
6, it is after the dibit air-valve 5 of 3 right side lower end of air cooling unit switches to corresponding first air-valve baffle plate 4, single through air cooling
Send into from below by balancing orifice plate 7 for Cryogenic air after unit 3, absorbs the high temperature air after product heat from top balancing orifice plate 7 times
Cool down to air cooling unit 3, arrow is counterclockwise circulated air as shown in FIG., now as shown in FIG. under
The product cooling speed of side is from being most changed into most fast slowly, and the product cooling speed of top is from being most changed into most slow soon.And so on press
The dibit air-valve 5 of certain time interval switching 3 right side upper and lower side of air cooling unit forms the cooling side of two way alternate air-supply
Formula, the average cooling rate of diverse location product will become uniform, and then reduce cool time.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not right
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, all of embodiment cannot be exhaustive here, it is every to belong to this
Bright technical scheme it is extended obvious change or change still in protection scope of the present invention row.
Claims (9)
1. a kind of perishable items two way alternate is blown cold working apparatus, it is characterised in that the device includes low-temperature receiver and thermal-insulating body
(2)；
Include air cooling unit (3), dibit air-valve (5) and balancing orifice plate (7) inside the thermal-insulating body (2)；
Thermal-insulating body (2) left end arranges air cooling unit (3), and right-hand member arranges two balancing orifice plates (7)；
The right side upper and lower side of the air cooling unit (3) is respectively provided with dibit air-valve (5)；
The dibit air-valve (5) is equipped with the first air-valve baffle plate (4) and the second air-valve baffle plate (6)；
The first air-valve baffle plate (4) is separately fixed at the upper and lower surface of thermal-insulating body (2)；
The second air-valve baffle plate (6) is separately fixed at the left end of balancing orifice plate (7)；
The low-temperature receiver forms closed circuit with the air cooling unit (3) in thermal-insulating body (2).
2. perishable items two way alternate according to claim 1 is blown cold working apparatus, it is characterised in that the low-temperature receiver bag
Include direct cooled low-temperature receiver (1-1), refrigerating formula low-temperature receiver (1-2) and cold storage low-temperature receiver (1-3).
3. perishable items two way alternate according to claim 2 is blown cold working apparatus, it is characterised in that described directly cold
But formula low-temperature receiver (1-1) includes compressor (8), condenser (9) and throttling arrangement (10)；
The compressor (8), condenser (9), throttling arrangement (10) and air cooling unit (3), it is in turn connected to form cold-producing medium
Closed circuit.
4. perishable items two way alternate according to claim 2 is blown cold working apparatus, it is characterised in that the refrigerating formula
Low-temperature receiver (1-2) includes compressor (8), condenser (9), throttling arrangement (10), heat exchanger (12) and coolant pump (11)；
The compressor (8), condenser (9), throttling arrangement (10) and heat exchanger (12) are in turn connected to form cold-producing medium closure ring
Road；
The coolant pump (11), heat exchanger (12) are in turn connected to form to form refrigerating medium closure ring with air cooling unit (3)
Road.
5. perishable items two way alternate according to claim 2 is blown cold working apparatus, it is characterised in that described cold storage
Low-temperature receiver (1-3) includes compressor (8), condenser (9), throttling arrangement (10), heat exchanger (12), coolant pump (11), storage cold drop
And agent for storage of coldness pump (13) (14)；
The compressor (8), condenser (9), throttling arrangement (10) and heat exchanger (12) are in turn connected to form cold-producing medium closure ring
Road；
Storage cold drop (14), coolant pump (11) are in turn connected to form refrigerating medium closed circuit with heat exchanger (12)；
The agent for storage of coldness pump (13), storage cold drop (14) are in turn connected to form agent for storage of coldness closed circuit with air cooling unit (3).
6. perishable items two way alternate according to claim 1 is blown cold working apparatus, it is characterised in that the air is cold
But blower fan is provided with unit (3).
7. perishable items two way alternate according to claim 1 is blown cold working apparatus, it is characterised in that the couveuse
The outside of body (2) is provided with heat-insulation plate for external.
8. perishable items two way alternate according to claim 1 is blown cold working apparatus, it is characterised in that the dibit wind
The outside of valve (5) is coated with heat-insulation layer.
9. perishable items two way alternate according to claim 1 is blown cold working apparatus, it is characterised in that the air is cold
But unit (3) is surface cooler or spray chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002611.3A CN106679284B (en) | 2017-01-03 | 2017-01-03 | Perishable food bidirectional alternate air supply cold processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002611.3A CN106679284B (en) | 2017-01-03 | 2017-01-03 | Perishable food bidirectional alternate air supply cold processing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106679284A true CN106679284A (en) | 2017-05-17 |
| CN106679284B CN106679284B (en) | 2018-09-28 |
Family
ID=58849188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710002611.3A Active CN106679284B (en) | 2017-01-03 | 2017-01-03 | Perishable food bidirectional alternate air supply cold processing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106679284B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746975A (en) * | 1993-08-06 | 1995-02-21 | Sanyo Electric Co Ltd | Thermo-hygrostat |
| JPH08178500A (en) * | 1994-12-22 | 1996-07-12 | Nippon Techno Kk | Method and equipment for cooling showcase and vending machine, as well as showcase and vending machine |
| US20070107450A1 (en) * | 2005-11-16 | 2007-05-17 | Keiji Sasao | Air conditioning apparatus |
| CN101551189A (en) * | 2009-05-12 | 2009-10-07 | 天津商业大学 | Ice-temperature vault |
| CN101975428A (en) * | 2010-11-02 | 2011-02-16 | 浙江大学 | Air-cooling thermotube-type machine room air-conditioning system |
| CN103574987A (en) * | 2012-08-01 | 2014-02-12 | 吴春渊 | Cold and hot multi-functional economizer system |
-
2017
- 2017-01-03 CN CN201710002611.3A patent/CN106679284B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746975A (en) * | 1993-08-06 | 1995-02-21 | Sanyo Electric Co Ltd | Thermo-hygrostat |
| JPH08178500A (en) * | 1994-12-22 | 1996-07-12 | Nippon Techno Kk | Method and equipment for cooling showcase and vending machine, as well as showcase and vending machine |
| US20070107450A1 (en) * | 2005-11-16 | 2007-05-17 | Keiji Sasao | Air conditioning apparatus |
| CN101551189A (en) * | 2009-05-12 | 2009-10-07 | 天津商业大学 | Ice-temperature vault |
| CN101975428A (en) * | 2010-11-02 | 2011-02-16 | 浙江大学 | Air-cooling thermotube-type machine room air-conditioning system |
| CN103574987A (en) * | 2012-08-01 | 2014-02-12 | 吴春渊 | Cold and hot multi-functional economizer system |
| CN103574988A (en) * | 2012-08-01 | 2014-02-12 | 吴春渊 | Cold and hot multi-functional economizer system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106679284B (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202119182U (en) | Refrigeration capacity adjustable preservation refrigeration house for fruits and vegetables | |
| CN102997567B (en) | Pressure differential defrosting device of evaporator in air cooler of refrigerated storage | |
| CN103988031B (en) | Freezer for container | |
| CN101937247A (en) | Air cooling refrigerator as well as moisture-preservation control method and system thereof | |
| CN106740401A (en) | A kind of portable differential pressure precooling device | |
| CN104236245B (en) | A kind of pre-freezer energy-saving control system | |
| CN108507216A (en) | A kind of superelevation grain depot cold recovery equipment and with the grain storage system of the equipment | |
| CN204830646U (en) | Fluid -bed fruit vegetables quick -freezing installation | |
| CN206493884U (en) | A kind of portable differential pressure precooling device | |
| CN106679284B (en) | Perishable food bidirectional alternate air supply cold processing device | |
| CN111578741A (en) | Heat exchange device and central air conditioner | |
| CN208016399U (en) | It can realize the equipment of cold recovery and the superelevation grain storage system with the equipment | |
| CN203672020U (en) | Fruit and vegetable fresh-keeping refrigeration house | |
| CN106895640A (en) | A kind of superposition type is segmented quick-frozen and cold and heat combined supply instant freezer | |
| CN104654713A (en) | Middle-size and small-size frostless refrigeration house refrigeration device of solution dehumidifying combined air cooling machine | |
| CN204359035U (en) | A kind of middle-size and small-size Frostless ice house refrigerating plant of solution dehumidification composite cold blower fan | |
| CN210980490U (en) | Energy storage type air-cooling frost-free refrigerator | |
| CN209013560U (en) | A kind of capacity-increasing type refrigerator | |
| CN201497103U (en) | Air-conditioning cabinet machine with functions of cold storage and thermal insulation | |
| CN202254565U (en) | Fresh keeping cold storage | |
| CN205641627U (en) | Ice source refrigeration system | |
| CN210124375U (en) | Freezing setting device of leather shoes | |
| CN104390380B (en) | A kind of edible fat production cooling refrigeration system | |
| CN110243130B (en) | Refrigeration equipment and control method thereof | |
| CN104034108B (en) | Direct cooling refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |