CN2720360Y

CN2720360Y - Liquid carbon-dioxide heat-free refrigerator

Info

Publication number: CN2720360Y
Application number: CN 200420060527
Authority: CN
Inventors: 吴援; 栾殿玺
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-02
Filing date: 2004-08-02
Publication date: 2005-08-24
Anticipated expiration: 2014-08-02

Abstract

The utility model is a liquid carbon-dioxide heat-free refrigerator. A heat insulated expansion pressure container (1) is positioned in a cold cupboard or the freezing chamber (2) of a refrigerator, and a condenser (3) is positioned in the container (1); one end of a coil pipe is connected with a medium pump (5) via an overflow valve (4), and the medium pump (5) is communicated with the liquid carbon-dioxide at the lower part of the container (1); the gas phase carbon dioxide at the upper part of the container (1) is connected with one end of the coil pipe of the refrigerating evaporator (7) connected externally with the cold cupboard or the refrigerator via a refluxing low-voltage connection pipe (10), and the other end of the coil pipe of the refrigerating evaporator is connected with the other end of the coil pipe of the condenser (3) via a restrictor (8).

Description

Liquid carbon dioxide non-heat refrigerating device

Technical field:

The utility model is relevant with refrigeration plant, and is especially relevant with the device that utilizes existing refrigerator or refrigerator cooling air.

Background technology:

Existing refrigeration plant, adopt the vapor compression refrigeration device mostly, as general refrigerator, refrigerator-freezer, air-conditioner, be communicated with condenser one end by compressor, the other end of condenser is communicated with choke valve through high-voltage tube, connect an end of evaporimeter again, the other end of evaporimeter connects and composes through the other end that return duct is communicated with compressor.Compressor with freon refrigeration through high-voltage tube, choke valve, send into evaporimeter gasification heat absorption and freeze.The gaseous refrigerant heat absorption is after return duct is sent condenser back to, and continuous cooling so circulates.This class vapor compression refrigeration device is outside discharges heat in refrigeration, so refrigerating capacity is big more, and heat exhaust is also big more, corresponding destruction environment.

The refrigerator of existing Pistonless compressor refrigeration, refrigerator-freezer, the cryogenic temperature of the refrigerating chamber of refrigerator is generally subzero, and refrigerator-freezers etc. all are the long-term work that did not stop in 365 days mostly, and the cold of compressor cooling having slatterned in vain all.This high hard-won cold is really lack scope for their abilities, and waste is unfortunately tangible!

The utility model content:

The purpose of this utility model provides a kind of device that utilizes the refrigeration system refrigeration room air of original refrigerator, refrigerator.

Of the present utility model being achieved in that

Liquid carbon dioxide non-heat refrigerating device of the present utility model, adiabatic expansion pressure vessel 1 is positioned at the refrigerating chamber 2 of refrigerator or refrigerator, condenser 3 is positioned at container 1, its coiled pipe one end is connected with medium pump 5 through overflow valve 4, medium pump 5 is communicated with the liquid carbon dioxide of bottom in the container 1 by pipette 6, the gas phase carbon dioxide on container 1 top is connected through coiled pipe one end of the external refrigerating evaporator 7 of low pressure return tube connector 10 and refrigerator or refrigerator, and the other end of the coiled pipe of refrigerating evaporator is connected through the other end of flow controller 8 with the coiled pipe of condenser 3.

Be serially connected with the snakelike refrigerator pipes 12 of at least one TEC 11 on the low pressure return tube connector 10, refrigerator pipes 12 is positioned at casing 13, at least one pair of thermocouple 14 is serially connected with 16 of power supplys, and its P utmost point is connected by sheet metal 15 with the N utmost point, and sheet metal 15 is connected with the wall insulation of casing 13.

Some series connection are used, and have only first container 1 to be positioned at refrigerating chamber 2, and last one evaporimeter 7 is positioned at the container 1 of next.

The utility model on the basis of original refrigeration system of not destroying original refrigerator, refrigerator-freezer and original circuit, install additional a kind ofly do not have discharges heat, refrigerating efficiency height, do not destroy environment and ozone layer be easy to regulate control and cheap carbon dioxide non-heat refrigerating device.This device is immersed in medium pump, overflow valve and condenser in the liquid refrigeration working medium, the gasification potential that makes the heat of its generation be insulated the liquid carbon dioxide refrigeration working medium in the bulbs of pressure container all absorbs, thereby makes the temperature difference between system refrigeration evaporator temperature and the condensation environment temperature reduce to realize normal refrigeration.

The utility model can use in many series connection, promptly go up the container (1) that one evaporimeter (7) is positioned at next, this turret vessel (1) need not place in the refrigerator refrigerating chamber, other structure is identical, kind of refrigeration cycle at different levels are the cold cooling cycle system of phase change, the steam that they all utilize the cold of the more low temperature that the upper level kind of refrigeration cycle provided to lower the temperature and produced after the condensation refrigeration working medium phase transformation at the corresponding levels, make working medium return to liquid state by gaseous state, realize that phase transformation is with cold kind of refrigeration cycle, each grade phase transformation with cold kind of refrigeration cycle in, steam at first is condensed into supercooled liquid working medium, supercooled liquid working medium is dirty layer by layer, with from the bottom not section enter and the steam that rises layer by layer carries out heat convection, the final liquid carbon dioxide working medium that becomes saturation temperature continuously, the cold that the condensation liquefaction steam process is consumed is very little, with the one-level phase transformation with cold kind of refrigeration cycle in, the refrigerating capacity that refrigeration carbon dioxide phase transformation gasification is provided is far longer than the liquefaction cold that steam consumed.

When the utility model was worked, medium pump 5 was sent liquid carbon dioxide into condenser 3, and overflow valve is directly sent liquid carbon dioxide back to container 1 when system overpressure.Liquid carbon dioxide enters evaporimeter 7 evaporation absorption refrigeration room airs in condenser heat radiation cooling through flow controller 8, and gaseous carbon dioxide is cooled to flow of liquid carbon dioxide through TEC and returns container 1.

Because carbon dioxide pure phase-changing apyretic frigeration device is to utilize the original huge low temperature cold of original refrigerator, refrigerator-freezer refrigerating chamber to come work done,, only finish work done with medium pump so do not use Pistonless compressor.Therefore unusual saves energy, power saving rate is about 90%.If as multi-stage refrigerating, its consumption rate is also low, can be described as " energy-conservation expert " fully.

Because the utility model is to have utilized refrigerating chambers such as original refrigerator, refrigerator-freezer to finish this device, so the cost cost is low, ordinary consumer all can be born, the market space is very big.

Description of drawings:

One of Fig. 1 structure chart of the present utility model.

Two of Fig. 2 structure chart of the present utility model.

Three of Fig. 3 structure chart of the present utility model.

Fig. 4 is the A-A cutaway view of Fig. 3.

The specific embodiment:

Embodiment 1:

The utility model is at the built-in sealed pressure vessel 1 of the refrigerating chamber of refrigerator or refrigerator, liquid carbon dioxide is stored in the bottom of container 1, and link to each other with medium pump 5 by pipette 6, the top of container 1 is passed through low pressure return tube connector 10 and is connected with an end of the coiled pipe of indoor refrigerating evaporator 7.Condenser 3 places in the container 1, and the overflow valve 4 of an end of its coiled pipe outside container 1 is connected with medium pump 5, and the other end of its coiled pipe is connected with the other end of high pressure tube connector 9 with the coiled pipe of refrigerating evaporator 7 through flow controller 8.

Embodiment 2:

Primary structure is identical with embodiment 1, just has been connected in series the snakelike refrigerator pipes 12 of TEC 11 on low pressure return tube connector 10.Refrigerator pipes 12 is positioned at casing 13, is serially connected with 16 of power supplys by three pairs of thermocouples 14.The P utmost point of each thermocouple is connected by sheet metal 15 with the N utmost point, and sheet metal 15 is positioned at the outer wall of casing 13, is metal material as casing, needs insulating barrier therebetween.Refrigerator 12 is arranged in the insulation material of casing 13.

Medium pump and overflow valve have directly soaked among the liquid carbon dioxide in the container 1.

Claims

1, liquid carbon dioxide non-heat refrigerating device, it is characterized in that adiabatic expansion pressure vessel (1) is positioned at the refrigerating chamber (2) of refrigerator or refrigerator, condenser (3) is positioned at container (1), its coiled pipe one end is connected with medium pump (5) through overflow valve (4), medium pump (5) is communicated with the liquid carbon dioxide of the interior bottom of container (1) by pipette (6), the gas phase carbon dioxide on container (1) top is connected through coiled pipe one end of the external refrigerating evaporator (7) of low pressure return tube connector (10) and refrigerator or refrigerator, and the other end of the coiled pipe of refrigerating evaporator is connected through the other end of flow controller (8) with the coiled pipe of condenser (3).

2, carbon dioxide non-heat refrigerating device according to claim 1, it is characterized in that being serially connected with on the low pressure return tube connector (10) the snakelike refrigerator pipes (12) of at least one TEC (11), refrigerator pipes (12) is positioned at casing (13), at least one pair of thermocouple (14) is serially connected with between power supply (16), its P utmost point is connected by sheet metal (15) with the N utmost point, and sheet metal (15) is connected with the wall insulation of casing (13).

3, carbon dioxide non-heat refrigerating device according to claim 1 and 2 is characterized in that some series connection uses, has only first container (1) to be positioned at refrigerating chamber (2), and last one evaporimeter (7) is positioned at the container (1) of next.