CN219135123U

CN219135123U - Industrial liquid nitrogen refrigerator device

Info

Publication number: CN219135123U
Application number: CN202223396705.9U
Authority: CN
Inventors: 施敏海; 孙振中; 吴辰睿; 李�杰
Original assignee: Jiangsu Serlng New Energy Technology Co ltd
Current assignee: Jiangsu Serlng New Energy Technology Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-06-06
Anticipated expiration: 2032-12-19

Abstract

The utility model relates to an industrial liquid nitrogen refrigerator device which comprises an outer tank body, an inner tank body and a vacuum tank body interlayer positioned between the outer tank body and the inner tank body, wherein an inner cavity is formed in the inner wall of the inner tank body, and at least two uniformly distributed heat exchangers are arranged in the inner cavity; a plurality of cold screens are arranged in the tank body interlayer, a liquid nitrogen container is arranged in the lower space of the tank body interlayer and used for storing liquid nitrogen, the upper part and the lower part of the liquid nitrogen container are respectively provided with a cold screen, and at least one cold screen is also arranged in the tank body interlayer of the left and right side walls of the outer tank body and the inner tank body. According to the utility model, the cold screen is added in the interlayer of the tank body, so that the residual cold energy generated by vaporization in the tank body is discharged after passing through the pipeline of the interlayer in the tank body, and the liquid nitrogen latent heat of vaporization is efficiently utilized for cooling.

Description

Industrial liquid nitrogen refrigerator device

Technical Field

The utility model relates to the technical field of liquid nitrogen biological containers, in particular to an industrial liquid nitrogen refrigerator device.

Background

The refrigeration low-temperature technology is a core technology of a biological sample library, in which a sample is generally required to be stored under a low-temperature condition, because the biochemical reaction of the sample itself is greatly reduced in a low-temperature environment, thereby improving the stability of various components in the sample. The storage modes mainly adopted at present comprise a liquid nitrogen tank and an ultralow temperature refrigerator. Because the low-temperature refrigerator has high production technical requirements and high cost, most of the low-temperature refrigerator is a foreign product, the low-temperature refrigerator has high power consumption and high noise in the use process, only small experiments can be carried out, and the low-temperature refrigerator has low quantity, and the low-temperature refrigerator has high purchase price and high operation cost, so that the liquid nitrogen biological refrigerator has more use and can meet the biological test requirements.

The existing liquid nitrogen type refrigerator adopts direct injection type cooling in a tank, the cooling effect is not ideal, a high-energy consumption mode is adopted for achieving the cooling effect, the loss in the use process is extremely large, the frequency of replacing and supplementing liquid nitrogen is frequent, and the cost is extremely high.

Disclosure of Invention

The utility model aims to overcome the defects and provide the industrial liquid nitrogen refrigerator device which can improve the cooling effect and reduce the energy consumption.

The purpose of the utility model is realized in the following way:

an industrial liquid nitrogen refrigerator device comprises an outer tank body, an inner tank body and a vacuum tank body interlayer positioned between the outer tank body and the inner tank body, wherein an inner cavity is formed in the inner wall of the inner tank body, and at least two uniformly distributed heat exchangers are arranged in the inner cavity; a plurality of cold screens are arranged in the tank body interlayer, a liquid nitrogen container is arranged in the lower space of the tank body interlayer and used for storing liquid nitrogen, the upper part and the lower part of the liquid nitrogen container are respectively provided with a cold screen, and at least one cold screen is also arranged in the tank body interlayer of the left and right side walls of the outer tank body and the inner tank body.

Further, a liquid level sensor is arranged in the liquid nitrogen container and is connected with the processor after passing through the liquid level meter.

Further, the liquid nitrogen container is connected with the processor.

Further, the upper part, the middle part and the lower part in the inner tank body are respectively provided with temperature sensors, and each temperature sensor is connected with a processor.

Further, one heat exchanger is connected with a cold screen below the liquid nitrogen container, the other heat exchanger is connected with a cold screen on the side face of the other heat exchanger, the cold screen is respectively connected with a gas release regulating valve and a gas release temperature sensor, and the gas release regulating valve and the gas release temperature sensor are both connected with a processor.

Further, the cold shield above the liquid nitrogen container is connected with the processor through the overflow valve, the cold shield below is connected with the liquid filling valve through the filling one-way valve, the liquid filling valve is connected with the processor, and the liquid filling valve is also connected with the filling interface.

Further, the processor is also connected with a pressure sensor, and the pressure sensor is connected with a main safety valve.

Further, the processor is also connected with a liquid filling temperature sensor and a liquid filling rotary plate valve, and the liquid filling temperature sensor and the liquid filling rotary plate valve are both connected with a filling safety valve.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model uses a heat exchanger to block and block the possibility of liquid nitrogen pollution to the sample; according to the utility model, the cold screen is added in the interlayer of the tank body, the residual cold energy obtained by vaporization in the tank body is discharged after passing through the pipeline of the interlayer in the tank body, the latent heat of vaporization of liquid nitrogen is effectively utilized for cooling, the heat input into the tank body is reduced, the temperature in the interlayer in the tank body is further reduced, the vacuum effect is improved, and the energy consumption is reduced. Therefore, the utility model reduces the limit of the temperature area in the tank and reaches the liquid nitrogen temperature area.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Wherein:

the liquid nitrogen tank comprises an outer tank body 1, an inner tank body 2, a tank body interlayer 3, an inner cavity 4, a heat exchanger 5, a cold screen 6, a liquid nitrogen container 7, a liquid level sensor 8, a liquid level meter 9 and a processor 10.

Detailed Description

In order to better understand the technical solution of the present utility model, the following detailed description will be made with reference to the accompanying drawings. It should be understood that the following embodiments are not intended to limit the embodiments of the present utility model, but are merely examples of embodiments that may be employed by the present utility model. It should be noted that, the description herein of the positional relationship of the components, such as the component a being located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.

Example 1:

referring to fig. 1, fig. 1 shows a schematic structure of an industrial liquid nitrogen refrigerator device. As shown in the figure, the industrial liquid nitrogen refrigerator device comprises an outer tank body 1, an inner tank body 2 and a vacuum tank body interlayer 3 positioned between the outer tank body 1 and the inner tank body 2, wherein an inner cavity 4 is formed in the inner wall of the inner tank body 2, and a plurality of heat exchangers 5 which are uniformly distributed are arranged in the inner cavity 4; be equipped with a plurality of cold screen 6 in the jar body intermediate layer 3, be equipped with a liquid nitrogen container 7 in the lower part space of jar body intermediate layer 3 for the storage liquid nitrogen, the top and the below of liquid nitrogen container 7 are equipped with a cold screen 6 respectively, also be equipped with two cold screen 6 about in the jar body intermediate layer 3 of the left and right sides wall of outer jar body 1 and inner tank body 2.

The liquid nitrogen container 7 is internally provided with a liquid level sensor 8, the liquid nitrogen container 7 is connected with a processor 10, and the liquid level sensor 8 is connected with the processor 10 after passing through a liquid level meter 9.

The upper part, the middle part and the lower part in the inner tank body 2 are respectively provided with temperature sensors, and each temperature sensor is connected with the processor 10.

One heat exchanger 5 is connected with a cold screen 6 below the liquid nitrogen container 7, the other heat exchanger 5 is connected with the cold screen 6 on the side face of the heat exchanger, the cold screen 6 is respectively connected with a gas release regulating valve and a gas release temperature sensor, and the gas release regulating valve and the gas release temperature sensor are both connected with a processor 10.

The cold screen 6 above the liquid nitrogen container 7 is connected with the processor 10 through an overflow valve, the cold screen 6 below is connected with a liquid filling valve through a filling one-way valve, the liquid filling valve is connected with the processor 10, and the liquid filling valve is also connected with a filling interface.

The processor 10 is also connected with a pressure sensor which is connected with a main safety valve; the processor 10 is also connected with a liquid filling temperature sensor and a liquid filling rotary plate valve, and the liquid filling temperature sensor and the liquid filling rotary plate valve are both connected with a filling safety valve.

Working principle:

the utility model provides an industrial liquid nitrogen refrigerator device, which reduces the limit of a temperature zone in a tank to reach a liquid nitrogen temperature zone; compared with the traditional liquid nitrogen refrigerator, the refrigerator is partitioned by the heat exchanger, and the possibility of liquid nitrogen pollution to a sample is blocked; according to the utility model, the cold screen is added in the interlayer of the tank body, the residual cold energy obtained by vaporization in the tank body is discharged after passing through the pipeline of the interlayer in the tank body, the latent heat of vaporization of liquid nitrogen is effectively utilized for cooling, the heat input into the tank body is reduced, the temperature in the interlayer in the tank body is further reduced, the vacuum effect is improved, and the energy consumption is reduced.

The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.

Claims

1. An industrial liquid nitrogen refrigerator device which is characterized in that: the novel heat exchanger comprises an outer tank body (1), an inner tank body (2) and a vacuum tank body interlayer (3) positioned between the outer tank body (1) and the inner tank body (2), wherein an inner cavity (4) is formed in the inner wall of the inner tank body (2), and at least two uniformly distributed heat exchangers (5) are arranged in the inner cavity (4); be equipped with a plurality of cold screen (6) in jar body intermediate layer (3), be equipped with a liquid nitrogen container (7) in jar body intermediate layer (3)'s the lower part space for the storage liquid nitrogen, the top and the below of liquid nitrogen container (7) are equipped with a cold screen (6) respectively, also be equipped with at least one cold screen (6) in jar body intermediate layer (3) of the left and right sides wall of outer jar body (1) and interior jar body (2).

2. An industrial liquid nitrogen refrigerator device according to claim 1, wherein: a liquid level sensor (8) is arranged in the liquid nitrogen container (7), and the liquid level sensor (8) is connected with a processor (10) after passing through a liquid level meter (9).

3. An industrial liquid nitrogen refrigerator device according to claim 1, wherein: the liquid nitrogen container (7) is connected with the processor (10).

4. An industrial liquid nitrogen refrigerator device according to claim 1, wherein: the upper part, the middle part and the lower part in the inner tank body (2) are respectively provided with temperature sensors, and each temperature sensor is connected with a processor (10).

5. An industrial liquid nitrogen refrigerator device according to claim 1, wherein: one heat exchanger (5) is connected with a cold screen (6) below the liquid nitrogen container (7), the other heat exchanger (5) is connected with the cold screen (6) on the side face of the heat exchanger, the cold screen (6) is respectively connected with a gas release regulating valve and a gas release temperature sensor, and the gas release regulating valve and the gas release temperature sensor are both connected with a processor (10).

6. An industrial liquid nitrogen refrigerator device according to claim 1, wherein: the cold shield (6) above the liquid nitrogen container (7) is connected with the processor (10) through the overflow valve, the cold shield (6) below is connected with the liquid filling valve through the filling one-way valve, the liquid filling valve is connected with the processor (10), and the liquid filling valve is also connected with the filling interface.

7. An industrial liquid nitrogen refrigerator device according to claim 3, wherein: the processor (10) is also connected with a pressure sensor which is connected with a main safety valve.

8. An industrial liquid nitrogen refrigerator device according to claim 3, wherein: the processor (10) is also connected with a liquid filling temperature sensor and a liquid filling rotary plate valve, and the liquid filling temperature sensor and the liquid filling rotary plate valve are both connected with a filling safety valve.