CN209079596U - A kind of thermal stratification formula refrigeration system applied to logistics ice chest - Google Patents
A kind of thermal stratification formula refrigeration system applied to logistics ice chest Download PDFInfo
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- CN209079596U CN209079596U CN201821749600.8U CN201821749600U CN209079596U CN 209079596 U CN209079596 U CN 209079596U CN 201821749600 U CN201821749600 U CN 201821749600U CN 209079596 U CN209079596 U CN 209079596U
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- ice chest
- logistics
- temperature
- refrigeration system
- solenoid valve
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model, which relates to, is intended to provide a kind of thermal stratification formula refrigeration system applied to logistics ice chest, including ice chest, is equipped with cooling coil corresponding with goods carrier in the ice chest vertically, and the cooling coil forms the circuit that is connected with from pressurization liquid nitrogen container and supply air system；There is heat exchange fin on the tube wall of the cooling coil, heat exchange fin, which sequentially consists of, to be subtracted close become and dredge, until top layer is the light pipe of non-finned, makes to form the temperature gradient field that temperature from bottom to up is successively decreased step by step in ice chest.The utility model is using liquid nitrogen as refrigerating medium and refrigeration working medium, not only realize the cooling effect of the cold box interior temperature gradient distribution that temperature is successively decreased step by step from bottom to top, the cooling of variety classes cargo has been adapted to require, and it makes full use of nitrogen after cooling to adjust by supply air system and drives indoor temperature, to driver with comfortable environment, therefore the advantages of integrate economical and energy saving and high-efficiency environment friendly.
Description
Technical field
The utility model relates to gas phase-change heat-exchange fields, are a kind of temperature applied to logistics ice chest more specifically
Layer-stepping refrigeration system.
Background technique
The demand of today's society, Cold Chain Logistics is increasingly vigorous, and also increasingly rapidly, refrigeration system rises in Cold Chain Logistics for development
Very important effect.The cold box interior Temperature Distribution of conventional refrigeration is more single, is difficult to realize temperature gradient layering
Environment, less meet the cold-storage needs of all kinds or types of goods.Simultaneously because southern climates reason, the hot weather time compared with
It is long, if being a kind of worries for driver without air-conditioning in driver's cabin, or even cause heatstroke, even if equipped with air-conditioning system
It is easy waste electricity, the extra energy is lost.Therefore novel environment friendly is developed, efficient, safe, economic refrigeration system is cold chain
The task of top priority of logistics.
Summary of the invention
The purpose of the utility model is to overcome deficiencies in the prior art, provide a kind of temperature applied to logistics ice chest point
Laminar refrigeration system.
To achieve the above object, the technical scheme that the utility model is provided is as follows
A kind of thermal stratification formula refrigeration system applied to logistics ice chest, including ice chest, be equipped in the ice chest vertically with
The corresponding cooling coil of goods carrier, the cooling coil form the circuit that is connected with from pressurization liquid nitrogen container and supply air system；It is described
There is heat exchange fin on the tube wall of cooling coil, heat exchange fin, which sequentially consists of, to be subtracted close become and dredge, until top layer is aptery
The light pipe of piece makes to form the temperature gradient field that temperature from bottom to up is successively decreased step by step in ice chest.
As a further improvement of the utility model, on the connecting line between pressurization liquid nitrogen container and cooling coil
Equipped with the first solenoid valve；It is described to be equipped with second solenoid valve between pressurization liquid nitrogen container and supply air system certainly；Certainly the pressurization liquid nitrogen container
Two bypass lines drawn are combined into a gas exhaust piping in supply air system exit.
Being additionally provided between the second solenoid valve and supply air system as a further improvement of the utility model, prevents frosting
Spiral pipeline.
As a further improvement of the utility model, first solenoid valve and second solenoid valve all with temperature sensor phase
Even；The temperature sensor is used to measure ice chest temperature.
The temperature sensor uses thermal resistance temperature sensor as a further improvement of the utility model, using expansion
Pipe installation, installation site pass through raceway for wiring and the first solenoid valve, the on the upside of the ice chest cavity inner wall face of ice chest door right opposite
Two solenoid valves are connected.
The supply air system is located at the driver's cabin outside ice chest as a further improvement of the utility model, passes through exhaust
Hot gas is discharged outside driver's cabin pipeline.
The light of mini power is additionally provided on the gas exhaust piping of the supply air system as a further improvement of the utility model,
Just electric blowing machine is used for the forced-convection heat transfer of inner air and cold nitrogen.
Semipermeable membrane material is installed in the exhaust pipe as a further improvement of the utility model, only allows gas
Disengaging, prevent impurity enter and block pipeline.
Compared with prior art, the beneficial effects of the utility model are shown:
1, high-efficiency environment friendly: cooling process is simply rapid, can soon gradient cooling it is and low compared to tradition to target temperature
Warm storage facilities refrigerant, liquid nitrogen are environment friendly and pollution-free.
2, economical and energy saving: refrigeration equipment very little was both saved as cold source without introducing other refrigeration equipments only with liquid nitrogen
About space, has been greatly reduced the power consumption of Cold Chain Logistics vehicle.
The utility model, as refrigerating medium and refrigeration working medium, not only realizes cold box interior temperature from bottom to top using liquid nitrogen
The cooling effect for the temperature gradient distribution successively decreased step by step has adapted to the cooling of variety classes cargo and has required, and made full use of cold
But nitrogen after is adjusted by supply air system and drives indoor temperature, to driver with comfortable environment, therefore refrigeration effect
It is more excellent, the advantages of integrating economical and energy saving and high-efficiency environment friendly, very huge work will be played in the following Cold Chain Logistics
With.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: ice chest 1 is passed from pressurization liquid nitrogen container 2, cooling coil 3, the first solenoid valve 4.1, second solenoid valve 4.2, temperature
Sensor 5, supply air system 6.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments:
As shown in Figure 1, the thermal stratification formula refrigeration system applied to logistics ice chest of the utility model, including ice chest 1, from
It is pressurized liquid nitrogen container 2, cooling coil 3, the first solenoid valve 4.1, second solenoid valve 4.2, temperature sensor 5 and supply air system 6.It is described
Ice chest 1 uses thermal insulation material, has good thermal insulation property；Cooling coil 3 uses copper tube and pipe bender voluntarily coiling, intensively
Fin is combined using welding manner with cooling coil 3, is distributed along vertical direction, and quantity is gradually successively decreased, until not having fin
The coil pipe of the top layer of distribution.
First solenoid valve 4.1 is set to by welding manner from the connecting line of pressurization liquid nitrogen container 2 and cooling coil 3, ruler
It is very little to be selected according to pipeline；Second solenoid valve 4.2 is set to by welding manner from the company for being pressurized liquid nitrogen container 2 and supply air system 6
Adapter tube road, size are selected according to pipeline, and spiral pipeline is equipped between second solenoid valve 4.2 and supply air system 6, are used
Copper tube and pipe bender voluntarily coiling, pipeline diameter is smaller, is made according to the temperature of supply air system 6, prevents liquid nitrogen
Or low temperature nitrogen temperature is too low and be directly entered, so that serious frosting occurs for 6 pipeline of supply air system.
Temperature sensor 5 uses thermal resistance temperature sensor, is installed using expander, installation site is located at 1 face of ice chest
On the upside of the 1 cavity inner wall face of ice chest in face, it is connected by raceway for wiring with the first solenoid valve 4.1, second solenoid valve 4.2.
Temperature sensor 5 is used to measure 1 temperature of ice chest, and temperature signal feeds back to the first solenoid valve 4.1, thus control first
The opening and closing of solenoid valve 4.1 achievees the purpose that accurate temperature control to control the supply of cold nitrogen；Simultaneously by cargo heat up nitrogen into
Enter to drive indoor supply air system 6, carries out forced-convection heat transfer with its inner air, driver's cabin is then discharged by exhaust pipe
Outside；When 1 temperature of ice chest is reduced to target temperature, the first solenoid valve 4.1 is closed, and second solenoid valve 4.2 is opened, and cold nitrogen is from another
One side ducts into supply air system 6 and drive room air progress forced-convection heat transfer, finally after the heating of spiral pipeline
It is discharged outside driver's cabin by exhaust pipe.
Supply air system 6 is arranged in driver's cabin in 1 outside wall surface of ice chest, is located on rear side of driver's seat, 6 inside band of supply air system
There is the portable electric blower-use of mini power in the forced-convection heat transfer of inner air and cold nitrogen, and outside supply air system 6
Gas exhaust piping outlet is equipped with the semipermeable membrane material for only gas being allowed to pass in and out, and prevents impurity from entering and blocking pipeline.
The work implementation process of the utility model is as follows:
It is first turned on ice chest 1, cargo is placed in magazine, adjusts putting for cargo according to the cold-storage needs of different cargos
Position, is then shut off ice chest 1, and temperature sensor 5 detects 1 internal temperature of ice chest automatically, is not reduced to target temperature inside ice chest 1
Degree, then the first solenoid valve 4.1 is opened, and second solenoid valve 4.2 is closed, and is pressed into cooling coil from the liquid nitrogen being pressurized in liquid nitrogen container 2
3.It is most upper up to being distributed without fin since the intensive fin that quantity is reduced step by step being distributed in the vertical direction of cooling coil 3
The coil pipe of layer, liquid nitrogen flows through cooling coil 3 and is formed low temperature nitrogen by thermal evaporation, thus forms what temperature from bottom to up was successively decreased step by step
Temperature gradient field, meets the cold-storage needs of different cargos, at the same the low temperature nitrogen that is warmed of cooled freight enter drive it is indoor
Supply air system 6 and its inner air carry out forced-convection heat transfer and are then discharged outside driver's cabin by exhaust pipe.Work as temperature sensing
When device 5 detects that 1 internal temperature of ice chest reaches target temperature, the first solenoid valve 4.1 is automatically closed, and second solenoid valve 4.2 is opened,
From pressurization liquid nitrogen container 2 in liquid nitrogen from another side ducts by spiral pipeline heating after form cold nitrogen, into supply air system 6 with
It drives room air and carries out forced-convection heat transfer, be discharged outside driver's cabin finally by exhaust pipe, sky can be prevented again at the same time
Gas flows backwards stifled into the formation ice of cooling coil 3 from exhaust pipe.When temperature sensor 5 detects 1 internal temperature liter of ice chest again
When more than to target temperature, this system repeats the above process automatically, is reached by so recycling and maintains cargo temperature and adjusting
The purpose of Interior Temperature Environment is driven, realizes more good refrigeration effect.
Finally, it should be noted that listed above is only a specific embodiment of the utility model.Obviously, this reality
With it is novel can also there are many deformation, it is all done according to structure, feature and principle described in the concept of the patent of the utility model it is equivalent
Or simple change, it is included in the protection scope of the utility model patent.Those skilled in the art can be practical from this
All deformations that novel disclosure is directly exported or associated, are considered as the protection scope of the utility model.
Claims (8)
1. a kind of thermal stratification formula refrigeration system applied to logistics ice chest, including ice chest (1), set vertically in the ice chest (1)
There are cooling coil (3) corresponding with goods carrier, the cooling coil (3) and pressurization liquid nitrogen container (2) and supply air system (6) shape certainly
At connected circuit；It is characterized in that, there is heat exchange fin on the tube wall of the cooling coil (3), heat exchange fin from bottom to up according to
It is secondary to be dredged to subtract close become, until top layer is the light pipe of non-finned, make to form the temperature that temperature is successively decreased step by step from bottom to up in ice chest (1)
Spend gradient fields.
2. the thermal stratification formula refrigeration system according to claim 1 applied to logistics ice chest, which is characterized in that it is described from
The connecting line being pressurized between liquid nitrogen container (2) and cooling coil (3) is equipped with the first solenoid valve (4.1)；Certainly the pressurization liquid nitrogen
Second solenoid valve (4.2) are equipped between tank (2) and supply air system (6)；Two bypass ducts drawn from pressurization liquid nitrogen container (2)
Road is combined into a gas exhaust piping in supply air system (6) exit.
3. the thermal stratification formula refrigeration system according to claim 2 applied to logistics ice chest, which is characterized in that described
The spiral pipeline for preventing frosting is additionally provided between two solenoid valves (4.2) and supply air system (6).
4. the thermal stratification formula refrigeration system according to claim 2 or 3 applied to logistics ice chest, which is characterized in that institute
It states the first solenoid valve (4.1) and second solenoid valve (4.2) is all connected with temperature sensor (5)；The temperature sensor (5) is used to
Measure ice chest (1) temperature.
5. the thermal stratification formula refrigeration system according to claim 4 applied to logistics ice chest, which is characterized in that the temperature
It spends sensor (5) and uses thermal resistance temperature sensor, installed using expander, installation site is in the ice chest of ice chest (1) door right opposite
(1) on the upside of cavity inner wall face, it is connected by raceway for wiring with the first solenoid valve (4.1), second solenoid valve (4.2).
6. the thermal stratification formula refrigeration system according to claim 1 applied to logistics ice chest, which is characterized in that described to send
Wind system (6) is located at the external driver's cabin of ice chest (1), and hot gas is discharged outside driver's cabin by exhaust pipe.
7. the thermal stratification formula refrigeration system according to claim 6 applied to logistics ice chest, which is characterized in that described to send
The portable electric blower-use of mini power is additionally provided on the gas exhaust piping of wind system (6) in the pressure of inner air and cold nitrogen
Heat convection.
8. the thermal stratification formula refrigeration system according to claim 7 applied to logistics ice chest, which is characterized in that the row
Semipermeable membrane material is installed in feed channel, only allows the disengaging of gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749600.8U CN209079596U (en) | 2018-10-26 | 2018-10-26 | A kind of thermal stratification formula refrigeration system applied to logistics ice chest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749600.8U CN209079596U (en) | 2018-10-26 | 2018-10-26 | A kind of thermal stratification formula refrigeration system applied to logistics ice chest |
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| CN209079596U true CN209079596U (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821749600.8U Active CN209079596U (en) | 2018-10-26 | 2018-10-26 | A kind of thermal stratification formula refrigeration system applied to logistics ice chest |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926048A (en) * | 2019-12-02 | 2020-03-27 | 华晨专用车装备科技（大连）有限公司 | Cage type compressed liquid gas refrigerant refrigerating system device |
-
2018
- 2018-10-26 CN CN201821749600.8U patent/CN209079596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926048A (en) * | 2019-12-02 | 2020-03-27 | 华晨专用车装备科技（大连）有限公司 | Cage type compressed liquid gas refrigerant refrigerating system device |
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