CN2085936U

CN2085936U - Refrigerator

Info

Publication number: CN2085936U
Application number: CN 90218953
Authority: CN
Inventors: 孙洪宽
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-08-30
Filing date: 1990-08-30
Publication date: 1991-10-02

Abstract

The utility model relates to a refrigerator, which mainly comprises a refrigerating box and a circulation system, wherein, the refrigerating box is composed of refrigerating agent, circulation liquid, a liquid storage box, a box body, etc., and the circulation system is composed of a motor, a pump, a U-shaped pipe, a pipeline, etc. The refrigerator is characterized in that the pump driven by the motor is connected to the pipeline with the U-shaped pipe. One end of the pipeline is connected with the liquid storage box of the refrigerating box, and the other end of the pipeline is inserted into an annular sealing cavity which is covered by the refrigerating agent and is filled with the circulation liquid. The refrigerating agent and the circulation liquid used respectively are liquid nitrogen and ethylene glycol. The refrigerator is most characterized in that the refrigerator has no use of freon to prevent ozonosphere pollution.

Description

Refrigerator

The utility model relates to a kind of refrigerating plant, particularly a kind of refrigerating plant that does not use fluorine Lyons.

Existing refrigeration plant, as air conditioner, refrigerator etc., its cold-producing medium uses fluorine Lyons mostly, and makes range of application limited because of its device structure complexity, cost are expensive.Especially make atmospheric ozone layer that " cavity " take place with the pollution that causes because of fluorine Lyons most serious of all, this is as good as will be a potential threat to earthnik's class.For this reason, countries in the world are used the production of fluorine Lyons equipment on the one hand in restriction, on the other hand also at the refrigeration plant that steps up to develop replacement fluorine Lyons.

The purpose of this utility model promptly is a kind of refrigerating plant that does not use fluorine Lyons of design.

The design's refrigeration principle and organization plan are now disclosed for achieving the above object.This device comprises a refrigerating cabinet that is made of cold-producing medium, circulation fluid, fluid storage tank, casing etc., and one by motor and pump, U-shaped pipe, and the circulatory system that constitutes such as pipeline.Comprise in the refrigerating cabinet that one is formed on the fluid storage tank at top and a casing that fills cold-producing medium and circulation fluid of its underpart, be shaped on heat-insulation layer between this casing and cabinet, the casing top is shaped on lid so that the injection of liquid nitrogen.Central authorities make an annular seal chamber admittedly with splendid attire ethylene glycol in this case.This ring chamber is communicated with a stop valve with the fluid storage tank that places the cabinet top, and its effect is that the ethylene glycol in the fluid storage tank can flow into ring chamber to satisfy the circulation of this liquid in system when opening this valve.Motor and pump place the pipeline of the circulatory system, and the U-shaped pipe places the pipeline middle part and is the defeated cold terminal of this refrigerating plant.One termination of pipeline is gone into the fluid storage tank in the refrigerating cabinet, in the ring chamber in the casing of other end insertion its underpart.Its refrigeration principle and the course of work are such; Ethylene glycol in the fluid storage tank flows into ring chamber through stop valve, injects-196 ℃ liquid nitrogen in the casing, in view of the ring chamber that is inclusive in the liquid nitrogen is metal, so can make the ethylene glycol in the chamber be cooled to 0 ℃～-65 ℃ rapidly.The low temperature ethylene glycol that the pump running time can be twitched in the ring chamber when starter motor flows and forms circulation through the U-shaped pipe to fluid storage tank along pipeline, and the low temperature ethylene glycol of the U-shaped pipe of flowing through can make its surrounding environment cooling and reach refrigeration.But as the U pipe being placed the next transporting cold wind of blower fan, but as place enclosed environment then ice making reach freezing purpose.When not needing refrigeration or shutting down, should close stop valve earlier the ethylene glycol in the ring chamber is evacuated in the fluid storage tank, to prevent that ethylene glycol freezes in the chamber.In addition, the also available stop valve of its refrigeration intensity is regulated.

The designed maximum characteristics of refrigerating plant of the utility model are not use fluorine Lyons, and then can avoid or prevent " pollution " to ozone layer.Its this, that this device also has is simple in structure, processing and manufacturing is easy, characteristics with low cost, makes present design might become the regeneration product of substituted freon type refrigeration plant and has comparatively extensive and practical meaning.

Shown in the accompanying drawing 1 is the system architecture schematic diagram of this device, and Fig. 2 is that refrigerating cabinet cuts open and shows structural representation.Wherein 1 be refrigerating cabinet, 2 for casing, 3 for ethylene glycol, 4 for fluid storage tank, 5 for pipeline, 6 for motor, 7 for pump, 8 for the U-shaped pipe, 9 for liquid nitrogen, 10 for heat-insulation layer, 11 for ring chamber, 12 for lid, 13 for stop valve, 14 for lid, 15 for tracheae.

A preferred embodiment is now disclosed in conjunction with the accompanying drawings.Refrigerating cabinet 1 usefulness iron sheet is made the casing of 220 * 160 * 360MM, and liquid nitrogen case 2 is also inserted in the cabinet filling silicic acid rock insulation material 10 between two casees with the casing that iron sheet is made 200 * 140 * 220MM.Ring chamber 11 is with the cavity of making its hollow of 210 * 120 * 11.0MM with iron sheet, and these chamber weldering central authorities in the liquid nitrogen case are the shape that is hung.The fluid storage tank that iron sheet is made 220 * 120 * 80MM places the top in the cabinet 1 on the case 2, and a communicating pipe that universal stop valve 13 is housed is put in 11 in case 4 and chamber, and to be convenient to ethylene glycol by case 4 inflow chambers 11,11 tops, chamber are shaped on tracheae feeding case 4 and are convenient to exhaust.The top in case 2 and chamber 4 respectively is shaped on to be covered 12,14 and is convenient to fluid injection.Pipeline 5 and U-shaped pipe 8 all get final product with the copper pipe of φ 10 or 12.Inject-196 ℃ liquid nitrogen in the case 2.

Claims

1, a kind of refrigerating plant, comprise a refrigerating cabinet that constitutes by cold-producing medium, circulation fluid, casing, fluid storage tank etc. and the circulatory system that constitutes by motor, pump, U-shaped pipe and pipeline etc., it is characterized in that being connected to by motor-driven pump and include the U-shaped pipe and go into fluid storage tank in the refrigerating cabinet and the other end is inserted in the pipeline in cooled dose of that contained and annular seal that the fill circulation fluid chamber in interior one termination, said cold-producing medium is that liquid nitrogen, circulation fluid are ethylene glycol.

2, by the described refrigerating plant of claim 1, the top that it is characterized in that refrigerating cabinet is shaped on and stores circulation fluid is the casing of ethylene glycol, its underpart be marked with cold-producing medium be liquid nitrogen and and cabinet between be shaped on the casing of heat-insulation layer, central authorities make an annular seal chamber that fills ethylene glycol and be communicated with stop valve with fluid storage tank admittedly in this case.