CN218722574U

CN218722574U - Refrigerator temperature and humidity control system

Info

Publication number: CN218722574U
Application number: CN202222808277.XU
Authority: CN
Inventors: 单波; 白文涛; 杨鹏; 赵冲; 李培荣; 李晓茹; 万文力
Original assignee: Qingdao Aucma Biomedical Co Ltd
Current assignee: Qingdao Aucma Biomedical Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-03-24
Anticipated expiration: 2032-10-25

Abstract

The utility model discloses a temperature and humidity control system of a refrigerator, which comprises a first refrigerant loop and a second refrigerant loop; a first compressor, a first condenser, a first throttling device and a first evaporator are sequentially connected to the first refrigerant loop in series; the second refrigerant loop is provided with a second compressor, a second condenser, a heat exchanger, a second throttling device, a dehumidifying evaporator, a third throttling device and a second evaporator, the second condenser and the heat exchanger are connected in parallel to form a first assembly, the second throttling device and the dehumidifying evaporator are connected in series to form a second assembly, the third throttling device and the second evaporator are connected in series to form a third assembly, the second assembly and the third assembly are connected in parallel to form a fourth assembly, and the second compressor, the first assembly and the fourth assembly are sequentially connected in series. The first refrigerant loop and the second refrigerant loop are mutually independent and operate in a circulating mode, the first refrigerant loop is used for cooling the refrigerating chamber of the refrigerator, and the second refrigerant loop is used for dehumidifying the refrigerating chamber of the refrigerator and cooling the freezing chamber of the refrigerator.

Description

Refrigerator temperature and humidity control system

Technical Field

The utility model relates to a refrigerator technical field particularly, relates to a refrigerator atmospheric control system.

Background

In the fields of hospitals, blood stations, disease control centers, biopharmaceuticals and the like, the storage environment of products such as vaccines, blood, medical reagents and the like is relatively high in requirement, a low-temperature and constant-humidity environment is generally required, and once the temperature or the humidity exceeds a standard, the vaccines, the reagents and the like deteriorate and lose efficacy, so that certain economic loss or other serious consequences are caused. At present, products such as vaccines, blood, medical reagents and the like are generally stored in a medical refrigerator, the medical refrigerator can provide a constant low-temperature environment, meanwhile, a drying agent and the like are put in the medical refrigerator to keep a dry environment in a refrigerator body, the means cannot provide a constant humidity environment, the requirements on the storage environment of the products such as the vaccines, the blood, the medical reagents and the like cannot be met, and the drying agent needs to be frequently replaced, so that time and labor are wasted.

In this regard, there is a need for improvements in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a refrigerator temperature and humidity control system to solve among the prior art medical refrigerator can not provide a stable humidity environment, can't satisfy the problem to the storage environment requirement of goods such as bacterin, blood, medical reagent.

In order to achieve the above object, the utility model discloses a technical solution is:

a temperature and humidity control system of a refrigerator comprises a first refrigerant loop and a second refrigerant loop;

the first refrigerant loop is sequentially connected with a first compressor, a first condenser, a first throttling device and a first evaporator in series, and the first evaporator generates cold energy for cooling a refrigerating chamber of the refrigerator;

the second refrigerant loop is provided with a second compressor, a second condenser, a heat exchanger, a second throttling device, a dehumidifying evaporator, a third throttling device and a second evaporator, the second condenser and the heat exchanger are connected in parallel to form a first assembly, the second throttling device and the dehumidifying evaporator are connected in series to form a second assembly, the third throttling device and the second evaporator are connected in series to form a third assembly, the second assembly and the third assembly are connected in parallel to form a fourth assembly, and the second compressor, the first assembly and the fourth assembly are sequentially connected in series;

the dehumidification fan dehumidifies the high-humidity air in the refrigerating chamber through the dehumidification evaporator, absorbs heat through the heat exchanger to raise the temperature, and finally sends the high-humidity air back to the refrigerating chamber, and the second evaporator generates cold energy to cool the refrigerating chamber of the refrigerator.

Preferably, the system further comprises a controller, wherein the controller is electrically connected with the first compressor and the second compressor respectively and is used for controlling the start and stop of the first compressor and the second compressor.

Preferably, the system also comprises a first temperature sensor arranged in the refrigerating chamber of the refrigerator, and the first temperature sensor is electrically connected with the controller and is used for detecting the temperature of the refrigerating chamber of the refrigerator in real time and transmitting the temperature to the controller.

Preferably, the system also comprises a humidity sensor arranged in the refrigerating chamber of the refrigerator, and the humidity sensor is electrically connected with the controller and is used for detecting the humidity of the refrigerating chamber of the refrigerator in real time and transmitting the humidity to the controller.

Preferably, the system also comprises a second temperature sensor arranged in the freezing chamber of the refrigerator, and the second temperature sensor is electrically connected with the controller and is used for detecting the temperature of the freezing chamber of the refrigerator in real time and transmitting the temperature to the controller.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model relates to a refrigerator temperature and humidity control system, first refrigerant return circuit and the mutually independent circulation operation in second refrigerant return circuit, first refrigerant return circuit is used for the refrigerator walk-in cooling, the second refrigerant return circuit is used for the refrigerator walk-in dehumidification, give the refrigerator freezer cooling simultaneously, realize refrigerator walk-in temperature and humidity through the controller, carry out stable accurate control to the temperature of refrigerator freezer, satisfy the requirement to the storage environment of goods such as bacterin, blood, medical reagent.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is the structure schematic diagram of the temperature and humidity control system of the refrigerator.

In the figure: 1. a first refrigerant circuit; 2. a second refrigerant circuit; 3. a first temperature sensor; 4. a humidity sensor; 5. a second temperature sensor; 6. a first compressor; 7. a first condenser; 8. a first throttling device; 9. a first evaporator; 10. a refrigerator refrigerating chamber; 11. a second compressor; 12. a second condenser; 13. a heat exchanger; 14. a second throttling device; 15. a dehumidification evaporator; 16. a third throttling means; 17. a second evaporator; 18. the freezer compartment of the refrigerator.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Furthermore, in the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1, the preferred embodiment of the present invention provides a temperature and humidity control system for a refrigerator, which comprises a controller, a first refrigerant loop 1, a second refrigerant loop 2, a first temperature sensor 3, a humidity sensor 4 and a second temperature sensor 5.

The first refrigerant circuit 1 is connected in series with a first compressor 6, a first condenser 7, a first throttling device 8 and a first evaporator 9 in sequence, and the above components are connected through pipelines.

The first temperature sensor 3 is arranged in the refrigerating chamber 10 of the refrigerator, the first temperature sensor 3 is electrically connected with the controller, and the first temperature sensor 3 can detect the temperature in the refrigerating chamber 10 of the refrigerator in real time and transmit the temperature to the controller. The controller is electrically connected with the first compressor 6, a user can set the temperature of the refrigerating chamber 10 of the refrigerator, and the controller controls the start and stop of the first compressor 6 according to the set temperature of the user and the real-time temperature of the refrigerating chamber 10 of the refrigerator. When the first compressor 6 is started, the refrigerant circulates in the first refrigerant circuit 1, and the first evaporator 9 generates cold energy for cooling the refrigerating chamber 10 of the refrigerator.

Further, the refrigerant circulating in the first refrigerant circuit 1 is a mixed refrigerant.

The second refrigerant circuit 2 is provided with a second compressor 11, a second condenser 12, a heat exchanger 13, a second throttling device 14, a dehumidifying evaporator 15, a third throttling device 16 and a second evaporator 17. The second condenser 12 and the heat exchanger 13 are connected in parallel to form a first assembly, the second throttling device 14 and the dehumidifying evaporator 15 are connected in series to form a second assembly, the third throttling device 16 and the second evaporator 17 are connected in series to form a third assembly, the second assembly and the third assembly are connected in parallel to form a fourth assembly, and the second compressor 11, the first assembly and the fourth assembly are sequentially connected in series. The above components are connected by pipelines.

Second temperature sensor 5 installs in refrigerator freezer 18, and second temperature sensor 5 is connected with the controller electricity, and second temperature sensor 5 can detect the temperature in refrigerator freezer 18 in real time and convey to the controller.

The humidity sensor 4 is arranged in the refrigerating chamber 10 of the refrigerator, the humidity sensor 4 is electrically connected with the controller, and the humidity sensor 4 can detect the humidity of the refrigerating chamber 10 of the refrigerator in real time and transmit the humidity to the controller.

The controller is electrically connected with the second compressor 11, a user can set the humidity of the refrigerating chamber 10 of the refrigerator and the temperature of the freezing chamber 18 of the refrigerator, and the controller controls the second compressor 11 to start when the humidity of the refrigerating chamber 10 of the refrigerator and/or the temperature of the freezing chamber are/is lower than the set value of the user. The refrigerant is divided into two paths after passing through the second compressor 11, one path releases heat after passing through the heat exchanger 13, the heat exchanger 13 is used for heating the dehumidified air so as to reduce the influence on the temperature in the refrigerating chamber 10 of the refrigerator, the other path releases heat after being condensed through the second condenser 12, and the two paths are converged. The high-humidity air in the refrigerating chamber 10 of the refrigerator firstly passes through the dehumidifying evaporator 15 by the dehumidifying fan, water vapor in the air is condensed into water drops on the surface of the dehumidifying evaporator 15 and is discharged, then the water drops are absorbed by the heat exchanger 13 to heat and rise the temperature, and finally the high-humidity air is sent back to the refrigerating chamber 10 of the refrigerator, then the two paths are converged, and enter the second compressor 11 to complete one cycle after being converged, and then the cycle operation is carried out. When the humidity of the refrigerating chamber 10 and the temperature of the freezing chamber 18 of the refrigerator both satisfy the user's set values, the controller controls the second compressor 11 to stop operating.

Further, the refrigerant circulating in the second refrigerant circuit 2 is a mixed refrigerant.

To sum up, the embodiment of the utility model provides a refrigerator temperature and humidity control system, first refrigerant return circuit 1 and 2 mutually independent circulation operation in second refrigerant return circuit, first refrigerant return circuit 1 is used for cooling for refrigerator walk-in 10, second refrigerant return circuit 2 is used for dehumidifying for refrigerator walk-in 10, simultaneously for refrigerator freezer 18 cooling, realize stabilizing accurate control to refrigerator walk-in 10 temperature and humidity, to the temperature of refrigerator freezer 18 through the controller, satisfy the requirement to the storage environment of goods such as bacterin, blood, medical reagent.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A temperature and humidity control system of a refrigerator is characterized by comprising a first refrigerant loop and a second refrigerant loop;

2. The system of claim 1, further comprising a controller, wherein the controller is electrically connected to the first compressor and the second compressor respectively, and is configured to control start and stop of the first compressor and the second compressor.

3. The system of claim 2, further comprising a first temperature sensor disposed in the refrigerator compartment, wherein the first temperature sensor is electrically connected to the controller for detecting the temperature of the refrigerator compartment in real time and transmitting the detected temperature to the controller.

4. The system of claim 2, further comprising a humidity sensor disposed in the cooling compartment of the refrigerator, wherein the humidity sensor is electrically connected to the controller for detecting the humidity in the cooling compartment of the refrigerator in real time and transmitting the detected humidity to the controller.

5. The system of claim 2, further comprising a second temperature sensor disposed in the freezer compartment of the refrigerator, wherein the second temperature sensor is electrically connected to the controller for detecting the temperature of the freezer compartment of the refrigerator in real time and transmitting the detected temperature to the controller.