CN210760165U - Refrigerator car refrigerating system with automatic defrosting function - Google Patents
Refrigerator car refrigerating system with automatic defrosting function Download PDFInfo
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- CN210760165U CN210760165U CN201921901707.4U CN201921901707U CN210760165U CN 210760165 U CN210760165 U CN 210760165U CN 201921901707 U CN201921901707 U CN 201921901707U CN 210760165 U CN210760165 U CN 210760165U
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Abstract
The utility model discloses a refrigerator car refrigerating system with automatic defrosting function, which comprises a refrigerating unit and a refrigerator control system; the refrigerating unit comprises a defrosting electromagnetic valve, an evaporation fan, a condensation fan and a stop valve; the refrigerator control system comprises a singlechip; the refrigerating unit comprises a storage temperature sensor arranged at an air return opening of the evaporation fan and a defrosting temperature sensor arranged in an air return pipeline of the evaporation fan: the storage temperature sensor is used for detecting the return air temperature and transmitting the value to the singlechip; and the defrosting temperature sensor is used for detecting the temperature of the return air pipeline and transmitting the value to the single chip microcomputer. The utility model has the advantages of simple structure and good use effect. The defrosting cycle and the defrosting interval of the refrigerating system of the refrigerator car can be better controlled, the refrigerating unit is more scientifically controlled to defrost, the problem of manual intervention is reduced, defrosting is timely and effectively controlled, the fluctuation of the temperature in the compartment is reduced, product transportation is facilitated, and the quality of goods is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of the refrigerator car technique and specifically relates to a refrigerator car refrigerating system with automatic defrosting function is related to.
Background
The refrigerator car is a closed van-type transport vehicle for transporting frozen or fresh-keeping goods, is a special transport vehicle provided with a refrigerating unit, and is commonly used for transporting frozen foods, dairy products, vegetables, fruits, vaccines, medicines and the like. In the freight transportation process, because the goods humidity is great in the railway carriage or compartment and the in-process of opening the railway carriage or compartment door can lead to in the hot-air gets into the railway carriage or compartment, the hydrone in the hot-air meets the condensation and frosts and adheres to in the evaporation fin, the evaporimeter is bloied not smoothly, makes the temperature rise in the railway carriage or compartment, is difficult to the cooling, so when the evaporimeter frosts the evaporimeter in will carry out the defrosting operation to the evaporimeter, avoid the evaporimeter frosting serious, the temperature decline slowly damages the goods, causes unnecessary loss. The timing automatic defrosting mode is generally adopted in the industry at present, the timing defrosting is carried out according to the accumulated time setting of equipment work, but when the large goods of the transported hot gas or the goods of the carriage body are not precooled, the goods of the carriage body can be frosted seriously when the set automatic defrosting time is not reached, the abnormal cooling is caused, the transportation cost can be increased, and the safety of the goods can be influenced.
Disclosure of Invention
An object of the utility model is to provide a refrigerator car refrigerating system who has automatic defrosting function that can defrost automatically.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
the utility model discloses a refrigerator car refrigerating system with automatic defrosting function, which comprises a refrigerating unit and a refrigerator control system for controlling the refrigerating unit;
the refrigerating unit comprises a defrosting electromagnetic valve, an evaporation fan, a condensation fan and a stop valve;
the refrigerator control system comprises a single chip microcomputer;
the refrigerating unit also comprises a storage temperature sensor arranged at the air return opening of the evaporation fan and a defrosting temperature sensor arranged in an air return pipeline of the evaporation fan:
the storage temperature sensor is used for detecting the return air temperature and transmitting the value to the single chip microcomputer;
the defrosting temperature sensor is used for detecting the temperature of the return air pipeline and transmitting the value to the single chip microcomputer;
and the single chip microcomputer compares the temperature difference value of the warehouse temperature sensor and the defrosting temperature sensor, and when the temperature difference value exceeds a set difference value number, the refrigerator control system enters a defrosting mode.
The utility model has the advantages of simple structure and good use effect. The defrosting cycle and the defrosting interval of the refrigerating system of the refrigerator car can be better controlled, the refrigerating unit is more scientifically controlled to defrost, the problem of manual intervention is reduced, defrosting is timely and effectively controlled, the fluctuation of the temperature in the compartment is reduced, product transportation is facilitated, and the quality of goods is guaranteed.
The control scheme of defrosting in real time through the temperature difference is added, so that defrosting of the refrigeration equipment can be effectively controlled, labor cost is reduced, and the refrigeration equipment is low in cost in function realization, obvious in effect and promising in development prospect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic block circuit diagram of the present invention.
Detailed Description
As shown in fig. 1 and 2, the refrigeration system of the refrigerator car with the automatic defrosting function of the present invention includes a refrigeration unit and a refrigerator control system for controlling the refrigeration unit;
the refrigerating unit comprises a defrosting electromagnetic valve 1, an evaporation fan 2, a condensation fan 3 and a stop valve 4;
the refrigerator control system comprises a single chip microcomputer;
the refrigerating unit also comprises a storage temperature sensor 5 arranged at an air return port of the evaporation fan 2 and a defrosting temperature sensor 7 arranged in an air return pipeline 6 of the evaporation fan 2:
the storage temperature sensor 5 is used for detecting the return air temperature and transmitting the value to the single chip microcomputer;
the defrosting temperature sensor 7 is used for detecting the temperature of the return air pipeline 6 and transmitting the value to the single chip microcomputer;
the single chip microcomputer compares the temperature difference value of the warehouse temperature sensor 5 and the defrosting temperature sensor 7, and when the temperature difference value exceeds a set difference value number, the cold machine control system enters a defrosting mode.
The working process is as follows: the single chip microcomputer of the refrigerator control system detects the temperature of the refrigerator and the defrosting temperature, compares the difference value of the two temperatures, and when the difference value is larger than 10 ℃, the refrigerating unit enters a defrosting mode, opens the defrosting electromagnetic valve 1, closes the evaporation fan 2, the condensation fan 3 and the stop valve 4, and waits for the defrosting operation time or reaches the defrosting termination temperature. The refrigerating unit enters a dripping mode, does not work at the moment, and after waiting for about 3 minutes, the stop valve 4 is opened, the condensing fan 3 is closed, the defrosting electromagnetic valve 1 is closed, the evaporating fan 2 is opened, the refrigerating unit enters the refrigerating mode, and the compartment is warmed.
Claims (1)
1. A refrigerator car refrigerating system with an automatic defrosting function comprises a refrigerating unit and a refrigerator control system for controlling the refrigerating unit;
the refrigerating unit comprises a defrosting electromagnetic valve, an evaporation fan, a condensation fan and a stop valve;
the refrigerator control system comprises a single chip microcomputer;
the method is characterized in that: the refrigerating unit also comprises a storage temperature sensor arranged at the air return opening of the evaporation fan and a defrosting temperature sensor arranged in an air return pipeline of the evaporation fan:
the storage temperature sensor is used for detecting the return air temperature and transmitting the value to the single chip microcomputer;
the defrosting temperature sensor is used for detecting the temperature of the return air pipeline and transmitting the value to the single chip microcomputer;
and the single chip microcomputer compares the temperature difference value of the warehouse temperature sensor and the defrosting temperature sensor, and when the temperature difference value exceeds a set difference value number, the refrigerator control system enters a defrosting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921901707.4U CN210760165U (en) | 2019-11-06 | 2019-11-06 | Refrigerator car refrigerating system with automatic defrosting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921901707.4U CN210760165U (en) | 2019-11-06 | 2019-11-06 | Refrigerator car refrigerating system with automatic defrosting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210760165U true CN210760165U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921901707.4U Active CN210760165U (en) | 2019-11-06 | 2019-11-06 | Refrigerator car refrigerating system with automatic defrosting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210760165U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728854A (en) * | 2020-12-30 | 2021-04-30 | 天津华冷科技有限公司 | Intelligent defrosting method for refrigeration system based on evaporation temperature difference and refrigeration system |
| CN115230440A (en) * | 2022-08-22 | 2022-10-25 | 安徽润象新材料科技有限公司 | Power saving system of refrigerator car packing box |
-
2019
- 2019-11-06 CN CN201921901707.4U patent/CN210760165U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728854A (en) * | 2020-12-30 | 2021-04-30 | 天津华冷科技有限公司 | Intelligent defrosting method for refrigeration system based on evaporation temperature difference and refrigeration system |
| CN115230440A (en) * | 2022-08-22 | 2022-10-25 | 安徽润象新材料科技有限公司 | Power saving system of refrigerator car packing box |
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