CN210851964U

CN210851964U - Precooling and cold-stored integral type intelligence transport vechicle

Info

Publication number: CN210851964U
Application number: CN201921654865.4U
Authority: CN
Inventors: 陈爱强; 赵彩霞; 张峻; 党婷; 段尚源
Original assignee: Tianjin University of Commerce
Current assignee: Tianjin University of Commerce
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-26
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a precooling and cold-stored integral type intelligence transport vechicle, including the heat preservation carriage and arrange the tubular goods shelves in the heat preservation carriage in, realize the refrigerating system of cooling in the heat preservation carriage, realize the cold wind circulation system of air cycle in the heat preservation carriage, refrigerating system is including establishing the evaporimeter in the heat preservation carriage, cold wind circulation system is including arranging the differential pressure fan in the below of evaporimeter, the deflector is established to one side in the heat preservation carriage, so that precooling air cold gas forms the circulation flow in order to realize the quick precooling of goods in the heat preservation carriage under the differential pressure fan effect, and make the air supply in differential pressure effect self preservation carriage upper end and the air supply duct through pipe formula goods shelves pore of left end get into in goods shelves pipeline after assemble right-hand member return air duct flow direction differential pressure fan's bottom back is blown to the. The utility model discloses can improve the transportation quality of fruit vegetables, finally realize improving economic benefits's target.

Description

Precooling and cold-stored integral type intelligence transport vechicle

Technical Field

The utility model relates to a transport vechicle technical field especially relates to a precooling and cold-stored integral type intelligence transport vechicle.

Background

The fruits and vegetables are transported at normal temperature or under a simple cold chain, the metabolism is vigorous, and microorganisms are easy to breed. The core link of the whole cold chain transportation lies in the instant precooling and the timely cold storage transportation after the fruit and vegetable is produced. The fruit and vegetable that does not precool can't carry out rapid cooling to the fruit and vegetable when adopting the transportation of refrigerated transport car, causes fresh-keeping effect to show and descends, even possess precooling and refrigerated transport condition simultaneously, the fruit and vegetable also can consume a large amount of manpower and materials to the repeated loading and unloading process of precooling apparatus and refrigerated transport car, is showing incremental cost. In addition, the existing refrigerator car only realizes temperature control by starting and stopping a refrigerating system, the accumulation mode of goods often causes uneven temperature in the refrigerator car, and effective monitoring on the quality of fruits and vegetables is lacked, so that the preservation quality is reduced. Therefore, the refrigerated transport vehicle with the functions of precooling, refrigerating and quality monitoring is very important for the fruit and vegetable cold chain transportation industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a precooling and cold-stored integral type intelligence transport vechicle to the technical defect who exists among the prior art.

For realizing the utility model discloses a technical scheme that the purpose adopted is:

the utility model provides a precooling and cold-stored integral type intelligence transport vechicle, includes the heat preservation carriage and arranges in tubular goods shelves in the heat preservation carriage realizes the refrigerating system of cooling in the heat preservation carriage, realizes the cold wind circulation system of air cycle in the heat preservation carriage, refrigerating system is including establishing the evaporimeter in the heat preservation carriage, cold wind circulation system includes at the differential pressure fan who arranges in the below of evaporimeter, and the deflector is established to one side in the heat preservation carriage to make precooling air cold gas form the circulation flow under the differential pressure fan effect in the heat preservation carriage, realize the quick precooling to the goods, and make the air supply assemble right-hand member return air duct flow direction after the pipe hole of upper end and the air supply duct management formula goods shelves of left end gets into in the goods shelves pipeline in differential pressure effect self preservation carriage blow to the evaporimeter and form precooling wind circulation behind differential.

Further, be equipped with inside gas temperature sensor and gas composition sensor in the heat preservation carriage, the outside gas temperature sensor who establishes in the outside of heat preservation carriage, inside gas temperature sensor and gas composition sensor, outside gas temperature sensor are connected with control system.

Furthermore, the refrigerating system comprises a variable frequency compressor, a condenser and an electronic expansion valve, wherein an air suction port and an air exhaust port of the variable frequency compressor are respectively connected with an outlet of the evaporator and an inlet of the condenser, an outlet of the condenser is connected with an inlet of the electronic expansion valve, an inlet of the evaporator is connected with an outlet of the electronic expansion valve, and the variable frequency compressor, the condenser and the electronic expansion valve are connected with the control system.

Further, the differential pressure fan is connected with a control system, and the control system is used for controlling the operation rate of the differential pressure fan.

Furthermore, the control system is connected with the vehicle-mounted display screen through the network node, and transmits the data of the logistics parameters to the vehicle-mounted display screen, so that the vehicle-mounted monitoring of the logistics parameters is realized.

Furthermore, the control system is connected with the cloud data platform through the network node, and transmits the data of the logistics parameters to the cloud data platform, so that the dynamic monitoring of the logistics parameters is realized.

The utility model discloses based on differential pressure precooling mode, information monitoring and internet of things, realize commodity circulation on the way dynamic monitoring of goods precooling and fruit vegetables state parameter, improve refrigerator car control by temperature change precision to reduce the quality degradation rate of goods in the cold chain transportation, improve the transportation quality of fruit vegetables, finally realize the target that improves economic benefits.

Drawings

Fig. 1 is a schematic structural view of the precooling and refrigerating integrated intelligent transport vehicle of the present invention;

FIG. 2 is a flow chart illustrating different mode control;

fig. 3 shows a control diagram.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the utility model discloses a precooling and cold-stored integral type intelligence transport vechicle, include heat preservation carriage 1 and arrange in tubular goods shelves 12 in the heat preservation carriage, electronic blast gate 13 is installed to tubular goods shelves 12 left end, have fruit vegetables basket 1 on tubular goods shelves 12 for providing the refrigerating system of cold volume in the heat preservation carriage, be used for realizing cold air circulating's cold wind circulation system in the heat preservation carriage, refrigerating system is including establishing evaporimeter 3 in the heat preservation carriage, cold wind circulation system includes the differential pressure fan 8 that starts when needing the precooling, differential pressure fan arranges the below of evaporimeter, establish deflector 2 in one side in the heat preservation carriage to make precooling wind cold gas form circulation flow under differential pressure fan 8 in the heat preservation carriage and realize the quick precooling of goods, and make the air supply in differential pressure effect self preservation carriage after the pipe hole of upper end and left end gets into in the goods shelves pipeline and assembles the return air right-hand member wind channel flow direction after the pipe hole of air supply The bottom of the differential pressure fan blows to the evaporator to form a pre-cooling air circulation.

The utility model discloses in, refrigerating system, include evaporimeter 3, inverter compressor 4, condenser 5, electronic expansion valve 6 that connect gradually with the pipeline, they form a closed refrigerating system.

When the refrigerating system works, the inverter compressor 4 sucks the low-temperature and low-pressure refrigerant vapor generated by the evaporator 3 into the cylinder, the low-temperature and low-pressure refrigerant vapor is compressed by the inverter compressor 4, and when the pressure is increased (the temperature is also increased) to be slightly higher than the pressure in the condenser 5, the high-pressure refrigerant vapor in the cylinder is discharged into the condenser 5. The high-temperature high-pressure refrigerant vapor in the condenser exchanges heat with air (or normal-temperature water) with lower temperature to be condensed into liquid refrigerant, and the liquid refrigerant is cooled (decompressed) by the electronic expansion valve 6 and then enters the evaporator 3, and is vaporized after absorbing the heat of a cooled object in the evaporator 3. The cooled fruits and vegetables are cooled, and the refrigerant steam is sucked by the variable frequency compressor 4, so that a cycle is completed through four processes of compression, condensation, expansion and evaporation in the refrigerating system.

The utility model discloses in, the differential pressure that causes of cold wind circulation system's differential pressure fan 8 provide power for whole wind system circulation, make the interior air flow of refrigerator, form the convection current with the goods, get rid of the field heat rapidly, slow down fruit vegetables water loss rate. Air enters the evaporator 3 from the inlet of the differential pressure fan 8 to increase power, and then is subjected to heat exchange with the refrigeration system in the evaporator 3 in a circulating manner, so that the temperature of the air is reduced, and the air is discharged from the evaporator 3 and reaches the whole goods placing position under the action of pressure difference and gravity from the upper part of the heat preservation carriage so as to reduce the temperature of fruits and vegetables.

The pressure in the pipeline of the tubular goods shelf 12 is lower under the action of the differential pressure fan 8, cold air enters the pipeline through the air return holes in the tubular goods shelf 12 under the action of pressure difference after heat exchange with fruits and vegetables and is converged to the air return pipeline on the right side, wherein the air return holes in the tubular goods shelf are uniformly arranged at the positions corresponding to the goods placing positions on the upper part of the pipeline, so that the cold air can conveniently pass through the fruits and vegetables, and the air reaches the inlet of the differential pressure fan 8 again and enters the next air supply circulation.

In order to realize control, the utility model discloses in, differential pressure fan can be connected with control system, control system is used for controlling differential pressure fan's rate of operation control, and be equipped with inside gas temperature sensor and gas composition sensor in the heat preservation carriage, outside gas temperature sensor that establishes in the outside of heat preservation carriage, inside gas temperature sensor and gas composition sensor, outside gas temperature sensor are connected with control system (control center), can detect the temperature and the inside gas composition of the inside and outside of heat preservation carriage through the sensor, if detect the interior air cooling rate of carriage through the sensor after refrigerating system starts and be less than the setting value, then can regard as the goods not through the precooling, if be higher than the setting value then can regard as the goods to have had the precooling treatment; the quality change condition of the transported fruits and vegetables can be judged by utilizing the concentration of ethylene and carbon dioxide in the air in the carriage.

If the goods are pre-cooled, the goods can be controlled to start after being put in storage and directly enter a refrigeration mode, at the moment, the differential pressure fan is controlled by the control center to run at a low speed, the compressor of the refrigeration system runs at a low frequency, and the electric air valve 13 at the left end of the tubular goods shelf 12 is opened; if the goods are not precooled, the control center controls the differential pressure fan to run at a high speed, the refrigeration compressor runs at a high frequency, the electric air valve 13 at the front end of the tubular goods shelf 12 is closed, cold air is forced to pass through the transported fruits and vegetables under the action of pressure difference, the heat exchange rate of the fruits and vegetables is improved so as to precool the fruits and vegetables to a set temperature within 2-4 h, and the control center logically controls the fruits and vegetables to enter a refrigeration mode after precooling is completed.

In addition, through the real-time meteorological temperature parameter of temperature, gas composition and the car outside in each carriage of a plurality of sensor collaborative real-time supervision, based on communication technology, like 5G communication technology, with data transmission to high in the clouds data platform, realize the dynamic monitoring of logistics parameter. Meanwhile, after receiving signals from the sensors and the cloud data platform, the control center rapidly acts to control a refrigerating unit (refrigerating system) of the refrigerator car to adjust refrigerating capacity, so that the quality of fruits and vegetables is effectively monitored.

When the device works, the sensor monitoring system is used for identifying whether the fruits and vegetables are subjected to precooling treatment, and the control center control system enters a precooling or refrigerating mode, so that the cold load of a refrigerator car can be effectively reduced, and the energy-saving operation of the refrigerating storage and transportation device is realized; the pressure difference caused by the differential pressure fan in the refrigerator car provides power for the whole air system to circulate, so that the aim of quickly and uniformly removing the field heat of the fruits and the vegetables is fulfilled, the fresh-keeping effect of the fruits and the vegetables is effectively maintained, and the transportation cost is also reduced; the pressure in the pipe is small due to the action of the differential pressure fan, and the airflow enters the pipeline through the air return hole of the pipe-type shelf and is converged to the air return pipeline on the right side, so that the uniformity of an internal flow field can be effectively improved; the sensor module is integrated on the basis of the internet of things technology, the refrigerating capacity of the refrigerator car is regulated and controlled, the quality of fruits and vegetables is effectively monitored, the temperature control precision of the refrigerator car is improved, the quality deterioration rate of goods in the cold chain transportation process is reduced, and the freshness keeping quality of the fruits and vegetables is maintained.

The utility model discloses a differential pressure that differential pressure fan caused provides power for whole air system circulation, strengthens the heat convection effect, reaches the quick precooling's of goods purpose in the refrigerator car, reduces the cold load of refrigerator car effectively, realizes cold-stored energy-conserving operation of storing the fortune device.

General goods shelves are strong to the streaming effect of air current tissue, lead to the air supply inhomogeneous easily, the utility model discloses the air supply assembles right side return air duct in can getting into the goods shelves pipeline in the through pipe formula goods shelves return air hole under the pressure differential effect, has reduced the flow field disturbance that the large tracts of land is converged and is aroused, has improved the homogeneity in flow field in the refrigerator car, utilizes the pressure differential effect to be that the fluid passes through the fruit vegetables and deposits the region simultaneously, has reinforceed the heat transfer of fruit vegetables with the air, has reduced the required time of fruit vegetables cooling.

Additionally, the utility model discloses information monitoring and control combine closely, and through the real-time supervision and the real-time regulation and control of microenvironment parameter are revised, the temperature fluctuation in the reducible refrigerator, effective prediction and the change of control fruit vegetables quality. The refrigerating capacity is matched with the combined load as much as possible, thereby greatly reducing the power consumption of the operation of the refrigerating system and saving energy.

Furthermore, through the combination of information monitoring and internet of things, the quality safety of products in the actual process of cold-chain logistics is effectively ensured, the whole process of cold-chain logistics can be monitored in real time and traced, and the perception level of the quality of the cold-chain logistics is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a precooling and cold-stored integral type intelligence transport vechicle, its characterized in that includes the heat preservation carriage and arranges in tubular goods shelves in the heat preservation carriage realizes the refrigerating system of cooling in the heat preservation carriage, realizes the cold wind circulation system of air cycle in the heat preservation carriage, refrigerating system is including establishing the evaporimeter in the heat preservation carriage, cold wind circulation system establishes the deflector including arranging the differential pressure fan in the below of evaporimeter in the heat preservation carriage to make precooling air-cooled gas form the circulation under the differential pressure fan effect in the heat preservation carriage and flow and realize the quick precooling to the goods, and make the air supply in differential pressure effect self preservation carriage after the pore of upper end and the air supply duct management formula goods shelves of left end gets into the goods shelves pipeline right-hand member return air duct flow direction the bottom of differential pressure fan blows to the evaporimeter and forms precooling wind circulation.

2. The integrated precooling and refrigerating intelligent transport vehicle as claimed in claim 1, wherein an internal gas temperature sensor and a gas composition sensor are arranged in the heat preservation carriage, an external gas temperature sensor is arranged outside the heat preservation carriage, and the internal gas temperature sensor, the gas composition sensor and the external gas temperature sensor are connected with a control system.

3. The integrated pre-cooling and cold storage intelligent transport vehicle as claimed in claim 1, wherein the refrigeration system comprises a variable frequency compressor, a condenser and an electronic expansion valve, an air suction port and an air exhaust port of the variable frequency compressor are respectively connected with an outlet of the evaporator and an inlet of the condenser, an outlet of the condenser is connected with an inlet of the electronic expansion valve, an inlet of the evaporator is connected with an outlet of the electronic expansion valve, and the variable frequency compressor, the condenser and the electronic expansion valve are connected with a control system.

4. The integrated pre-cooling and refrigerating intelligent transport vehicle as claimed in claim 1, wherein the differential pressure fan is connected with a control system, and the control system is used for controlling the operation rate of the differential pressure fan.

5. The integrated pre-cooling and refrigerating intelligent transport vehicle as claimed in claim 2, wherein the control system is connected with the vehicle-mounted display screen through a network node, and transmits data of logistics parameters to the vehicle-mounted display screen to realize vehicle-mounted monitoring of the logistics parameters.

6. The integrated precooling and refrigerating intelligent transport vehicle as claimed in claim 2, wherein the control system is connected with the cloud data platform through a network node, and transmits data of logistics parameters to the cloud data platform to realize dynamic monitoring of the logistics parameters.