CN201402018Y

CN201402018Y - Liquid nitrogen freezing box capable of reclaiming nitrogen

Info

Publication number: CN201402018Y
Application number: CN2009201494200U
Authority: CN
Inventors: 陈海洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-15
Filing date: 2009-04-15
Publication date: 2010-02-10
Anticipated expiration: 2019-04-15

Abstract

The utility model relates to a liquid nitrogen freezing box capable of reclaiming nitrogen, which comprises a main box body; the box body is internally provided with a refrigerating chamber; the inputend of the refrigerating chamber is connected with a liquid nitrogen source; the refrigerating chamber is internally provided with a heat exchanging chamber and a refrigerating chamber that are spaced by a heat-conducting material; the input end of the heat exchanging chamber is connected with the liquid nitrogen source and the output end of the heat exchanging chamber is connected with a gas storage tank; heat exchanging pipes are stacked in the heat exchanging chamber of the refrigerating chamber; and one end of the heat exchanging pipe is connected with the liquid nitrogen source by a carburetor and the other end thereof is connected with the gas storage tank. Compared with common liquid nitrogen freezing box, the liquid nitrogen freezing box has the beneficial effects of reclaiming the high-purity nitrogen consumed during the cold treatment, having low-temperature assembly and article freezing process of normal liquid nitrogen freezing box to the maximum degree, low consumption oreven no consumption, reclaiming the nitrogen with high purity, sufficiently ensuring the normal speed and safe operation of the freezing process simultaneously, and leading the freezing process to bemore environment-friendly.

Description

Nitrogen recycling type liquid nitrogen frozen case

[technical field]

The utility model relates to a kind of liquid nitrogen frozen case, refers in particular to a kind of liquid nitrogen frozen case that can reclaim cooling nitrogen.

[background technology]

In industrial production, often need carry out the assembling of cold treatment or low temperature to guarantee the high-performance of its finished product to material by freezing mode, and liquid nitrogen is generally adopted to handle at industrial products as a kind of stable and raw material that be easy to prepare and is served as cold-producing medium in the household freezer, the liquid nitrogen frozen case of making thus not only has the refrigerating efficiency height, low advantage consumes energy, but also possess the work peace and quiet, advantages such as volume is small and exquisite, yet the household freezer of existing liquid nitrogen refrigerating freezes by the input of can liquid nitrogen when work, refrigeration back liquid nitrogen gasification directly is discharged, whole liquid nitrogen frozen case has just utilized the cold energy of liquid nitrogen, and corresponding high pure nitrogen directly is discharged, this has just caused unnecessary waste, has caused the product use cost high simultaneously.

[summary of the invention]

The purpose of this utility model is to have overcome above-mentioned defective, provide a kind of can be to the back liquid nitrogen frozen case that reclaims of nitrogen that freezes.

The purpose of this utility model is achieved in that a kind of nitrogen recycling type liquid nitrogen frozen case, it comprises main box, be provided with cool room in the casing, the cool room input is connected with liquid nitrogen source, and its improvements are: be formed with heat exchange chamber and freezing chamber at interval by Heat Conduction Material in cool room; Input is connected with liquid nitrogen source in the described heat exchange chamber, and output is connected with air accumulator;

Also be provided with vaporizer and direct injection liquid nitrogen disperser in the freezing chamber of described cool room, vaporizer and the input of direct injection liquid nitrogen disperser connect liquid nitrogen source;

Also be provided with the draught fan impeller that links to each other with motor in the freezing chamber of described cool room;

The heat-exchange tube setting that the heat exchange chamber of described cool room becomes stacked setting wherein, heat-exchange tube one end connects liquid nitrogen source by vaporizer, the other end connects air accumulator.

Than common liquid nitrogen frozen case, the beneficial effects of the utility model are and can reclaim conventional liquid nitrogen frozen case spent high pure nitrogen in cold treatment, low temperature assembling, object refrigerating process to greatest extent, accomplish low-loss or even lossless, and when reclaiming high pure nitrogen, fully guaranteed the normal speed and the safe operation of refrigerating process, made its more environmental protection.

[description of drawings]

Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail

Fig. 1 is a structural representation of the present utility model

Fig. 2 is a structure cutaway view 1 of the present utility model

Fig. 3 is a structure cutaway view 2 of the present utility model

[specific embodiment]

Below in conjunction with accompanying drawing the utility model specific embodiment is described in detail.

As shown in Figure 1, 2, the utility model relates to a kind of nitrogen recycling type liquid nitrogen frozen case, it comprises main box 1, be provided with cool room in the casing 1, be formed with freezing chamber 101 and heat exchange chamber 102 at interval by Heat Conduction Material in the cool room, wherein be provided with direct injection liquid nitrogen disperser 6 and draught fan impeller 4 in 101 in freezing chamber, the motor that is provided with in draught fan impeller 4 and the main box 1 links to each other, is used for will spraying liquid nitrogen fast under the direct freezing working condition of freezing chamber 101 and is uniformly distributed in the cavity; 6 inputs of direct injection liquid nitrogen disperser connect liquid nitrogen source 100.And also be connected with liquid nitrogen source 100 in the heat exchange chamber 102 by vaporizer 5 inputs, on heat exchange chamber 102, also export simultaneously and be connected with air accumulator 200, the high-purity nitrogen that is used for being collected in heat exchange chamber 102 endothermic gasifications is stored in air accumulator 200, thereby this high-purity nitrogen can be used for other industrial production, effectively avoid wasting of high-purity nitrogen.

Referring to Fig. 3, heat-exchange tube 7 structures that the heat exchange chamber of nitrogen recycling type liquid nitrogen frozen case of the present utility model also can adopt into stacked setting are arranged in the cool room 103 of main box 1, one end of heat-exchange tube 7 connects liquid nitrogen source 100 by vaporizer 5, the other end connects air accumulator 200, liquid nitrogen fully absorbs heat and gasification by stacked heat-exchange tube 7 backs of flowing through, finally be left in the air accumulator 200 and collect, can on the basis of strengthening the liquid nitrogen utilization ratio, also avoid the unnecessary waste of high-purity nitrogen.

It is to be noted; the utility model is not limited to above-mentioned embodiment; any simple modification, equivalent variations and modification that any those skilled in the art do the foregoing description in based on technical solutions of the utility model all belong in the protection domain of the present utility model.

Claims

1, a kind of nitrogen recycling type liquid nitrogen frozen case, it comprises main box, is provided with cool room in the casing, the cool room input is connected with liquid nitrogen source, it is characterized in that: be formed with heat exchange chamber and freezing chamber at interval by Heat Conduction Material in cool room; Input is connected with liquid nitrogen source in the described heat exchange chamber, and output is connected with air accumulator.

2, nitrogen recycling type liquid nitrogen frozen case as claimed in claim 1 is characterized in that: also be provided with direct injection liquid nitrogen disperser in the freezing chamber of described cool room, the input of direct injection liquid nitrogen disperser connects liquid nitrogen source.

3, nitrogen recycling type liquid nitrogen frozen case as claimed in claim 2 is characterized in that: also be provided with the draught fan impeller that links to each other with motor in the freezing chamber of described cool room.

4, nitrogen recycling type liquid nitrogen frozen case as claimed in claim 3 is characterized in that: the heat-exchange tube setting that the heat exchange chamber of described cool room becomes stacked setting wherein, heat-exchange tube one end connects liquid nitrogen source by vaporizer, the other end connects air accumulator.