CN212806116U

CN212806116U - Incubator refrigerating system

Info

Publication number: CN212806116U
Application number: CN202020807449.XU
Authority: CN
Inventors: 王勇; 李乃臣
Original assignee: Xuneng Instrument Beijing Co ltd
Current assignee: Xuneng Instrument Beijing Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-03-26
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses an incubator refrigerating system, including two way structures, it is compressor, condenser, liquid storage pot, drier-filter, sight glass, solenoid valve one, expansion valve that the evaporimeter connects gradually all the way, gets back to the evaporimeter, forms a refrigeration cycle, is equipped with capillary and solenoid valve two on the another way, and the one end that is equipped with the capillary is connected between evaporimeter and expansion valve, and the one end that is equipped with solenoid valve two is connected between compressor and condenser. The utility model changes the traditional need of controlling the temperature in the box body by starting and stopping the compressor, the compressor is always in the working running state, and the damage to the compressor caused by frequent starting is avoided; the refrigerant has 2 through the route, switches the route that the refrigerant passed through the solenoid valve, reaches the purpose of the constancy of temperature in the control box, opens as solenoid valve two, and when solenoid valve one was closed, the refrigerant through the evaporimeter was hot fluorine, and hot fluorine can be for the evaporimeter heating to guarantee that the evaporimeter can not frost and freeze.

Description

Incubator refrigerating system

Technical Field

The utility model relates to a refrigeration plant technical field specifically indicates an incubator refrigerating system.

Background

Set up refrigerating system in the incubator such as plant cultivation, insect are cultivated, bacterial microorganism cultivation, seed germination, thereby traditional incubator refrigerating system (see fig. 1) keeps under the invariable state of set temperature, thereby need the temperature in the start-stop control box of control compressor. Because the compressor operation is in high pressure state, frequently opening and stopping causes the compressor to damage easily. When the compressor is operated, the evaporator is always in a cooling state, the temperature of the evaporator can reach-10 ℃ at the lowest, and the evaporator is easy to frost and freeze after long-term operation. The refrigeration efficiency is reduced, and the temperature in the box body is out of control. Meanwhile, the evaporator is frosted and frozen to cause overhigh return air pressure in the refrigerating system and damage the compressor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide an incubator refrigerating system, when guaranteeing that the temperature is stable in the box, avoid the compressor as far as possible to frequently start, avoid the evaporimeter to frost, freeze.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides an incubator refrigerating system, includes two way structures, and one way is that the evaporimeter connects gradually compressor, condenser, liquid storage pot, drier-filter, look liquid mirror, solenoid valve one, expansion valve, gets back to the evaporimeter, forms a refrigeration cycle, is equipped with capillary and solenoid valve two on the other way, and the one end that is equipped with the capillary is connected between evaporimeter and expansion valve, and the one end that is equipped with solenoid valve two is connected between compressor and condenser.

Preferably, a return air pressure regulating valve and an oil-gas separator are sequentially connected between the evaporator and the compressor.

Compared with the prior art, the utility model the advantage lie in: the temperature in the box body is controlled by starting and stopping the compressor, so that the compressor is always in a working running state, and the damage to the compressor caused by frequent starting is avoided; the refrigerant has 2 through the route, switches the route that the refrigerant passed through the solenoid valve, reaches the purpose of the constancy of temperature in the control box, opens as solenoid valve two, and when solenoid valve one was closed, the refrigerant through the evaporimeter was hot fluorine, and hot fluorine can be for the evaporimeter heating to guarantee that the evaporimeter can not frost and freeze.

Drawings

FIG. 1 is a schematic diagram of a conventional incubator refrigeration system.

Fig. 2 is a schematic structural diagram of the incubator refrigeration system of the present invention.

As shown in the figure: 1. the system comprises an evaporator, 2, a compressor, 3, a condenser, 4, a drying filter, 5, a capillary tube, 6, a return air pressure regulating valve, 7, an oil-gas separator, 8, a liquid storage tank, 9, a liquid viewing mirror, 10.1, a first electromagnetic valve, 10.2, a second electromagnetic valve, 11 and an expansion valve.

Detailed Description

The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

With the attached drawings, the incubator refrigerating system comprises two paths of structures, wherein one path is that an evaporator 1 is sequentially connected with an air return pressure regulating valve 6, an oil-gas separator 7, a compressor 2, a condenser 3, a liquid storage tank 8, a drying filter 4, a liquid viewing mirror 9, a first electromagnetic valve 10.1 and an expansion valve 11 and returns to the evaporator 1 to form a refrigerating cycle, the other path is provided with a capillary tube 5 and a second electromagnetic valve 10.2, one end provided with the capillary tube 5 is connected between the evaporator 1 and the expansion valve 11, and one end provided with the second electromagnetic valve 10.2 is connected between the compressor 2 and the condenser 3.

The utility model discloses adopt two tunnel designs when concrete implementation, when needing the cooling in the box, solenoid valve one 10.1 is opened, and two 10.2 of solenoid valve close, refrigerating system normal operating. When the temperature of the box body reaches a set value, the first electromagnetic valve 10.1 and the second electromagnetic valve 10.2 are switched on and off mutually, and the temperature in the box body is kept constant.

During refrigeration, the compressor 2 charges high-temperature and high-pressure refrigeration into the condenser 3, the high-temperature and high-pressure refrigeration enters the liquid storage tank 8 through the condenser 3, passes through the drying filter 4, the liquid viewing mirror 9 and the first electromagnetic valve 10.1, is throttled by the expansion valve 11 and enters the evaporator 1 to be boiled and evaporated to generate refrigeration capacity, and the refrigerant returns to the compressor 2 through the return air pressure regulating valve 6 to complete a refrigeration cycle.

When the refrigeration reaches the set temperature, the controller controls the second electromagnetic valve 10.2 to be opened, the first electromagnetic valve 10.1 to be closed, the hot refrigerant enters the evaporator 1, and the temperature in the cold-hot junction control box body is stable. The refrigerant flow is pressurized by the compressor 2, enters the second electromagnetic valve 10.2, is limited by the capillary tube 5, enters the evaporator 1, returns to the compressor 2 through the return air pressure regulating valve 6, and completes a cycle. After about 15 seconds (the time is determined by the controller according to the temperature fluctuation in the box), the second electromagnetic valve 10.2 is closed, the first electromagnetic valve 10.1 is opened, and the refrigeration cycle is performed again. The cold and hot refrigerants are alternately fed into the evaporator 1, so that the temperature of the evaporator 1 is kept stable, and the temperature in the box body is kept stable. The refrigerant is cooled through the condenser 3 and then is discharged into the evaporator 1 to emit cold; the refrigerant is not cooled by the condenser 3, the temperature is hot, and the refrigerant is also a hot refrigerant in the evaporator 1 and is commonly called hot fluorine. When the second electromagnetic valve 10.2 is opened and the first electromagnetic valve 10.1 is closed, the refrigerant passing through the evaporator 1 is hot fluorine, and the hot fluorine can heat the evaporator 1, so that the evaporator 1 is prevented from frosting and freezing.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides an incubator refrigerating system which characterized in that: the evaporator is connected with the compressor, the condenser, the liquid storage tank, the drying filter, the liquid viewing mirror, the first electromagnetic valve and the expansion valve in sequence to return to the evaporator to form a refrigeration cycle, the capillary tube and the second electromagnetic valve are arranged on the other path, one end provided with the capillary tube is connected between the evaporator and the expansion valve, and one end provided with the second electromagnetic valve is connected between the compressor and the condenser.

2. An incubator refrigeration system according to claim 1, wherein: and a return air pressure regulating valve and an oil-gas separator are sequentially connected between the evaporator and the compressor.