(57) Abstract:Usage: in refrigeration. Essence: household freezer comprises a heat-insulated Cabinet, compressor, condenser, capillary tube, a regenerative heat exchanger, filter-drier and tube heat doorway, connected on one side with the outlet pipe of the condenser and on the other with the filter-drier. The evaporator is made lithotrophy. The freezer is equipped with additional lithotrophy evaporator and rolling-welded evaporator-protronics containing two input and two output channels for connection Discotronic evaporators, one of which is located inside the entire length of the capillary tube. 2 Il. The invention relates to refrigeration and can be used in household freezers and refrigeration machines small refrigerating capacity.Known household freezers containing thermally insulated housing with door, condenser, compressor, throttle body in the form of a capillary tube.with. USSR N 1330425, CL F 25 D 11/00).However, these refrigerators have low reliability and instability temperature chambers.The closest in technical is d, the compressor input and output pipes, condenser, filter drier.But this solution also has low reliability, high power consumption, unstable temperature in the cells.The basis of the invention the task is to create a household freezer, where the temperature in the cells would be more stable, reduce energy consumption, improve reliability.The task is that in a domestic freezer, containing insulated Cabinet with tube heating doorway, door, compressor, condenser, capillary tube, a regenerative heat exchanger, the evaporator and filter-drier, evaporator made lithotrophy, when this freezer is equipped with additional lithotrophy evaporator and rolling-welded evaporator-Protoria, the latter contains two input and two output channels for connection Discotronic evaporators, one of which is located inside the entire length of the capillary tube, and the tube is heated door opening with one hand is connected with the outlet pipe of the condenser, and on the other with the filter-drier.The essential features are in the with the outlet pipe of the condenser.The introduction of rolling-welded evaporator between listotrubnye will reduce the number of brazed and welded joints, to stabilize the temperature, to reduce energy consumption and to equalize the temperature throughout the Cabinet and use it as protronic.Introduction the upper listotrubnye of the evaporator is allowed to enter the capillary.The connection tube heated door opening with the outlet pipe of the condenser is convenient since the tube heater circuit moves the refrigerant to a lower temperature, which reduces heat leakage into the Cabinet, and at the same time this temperature sufficient to prevent condensation on the inner opening of the Cabinet, which, in turn, will reduce the energy consumption.In Fig. 1 schematically shows a freezer of Fig. 2 freezer.Household freezer consists of a thermally insulated Cabinet 1 with a tube heated door opening 2, one end of which is connected to the outlet pipe of the condenser 3, the second to the filter-drier 4, a compressor 5, two Discotronic evaporators 6 and 7, the capillary tube 8, rolling-welded evaporator 9, a heat exchanger 10, the door 11. There is a dull end listotrubnye of ispar the aqueous evaporator 9, channel 17, puratronic 18, the output channel 19, 20 narrowed.The device operates as follows.Compressed by the compressor 5 refrigerant vapors are fed into the condenser 3 where it is partially condensed. Then the refrigerant enters the tube heating doorway, where the fully condensed, giving heat and preventing the deposition of moisture on the outer surface of the Cabinet 1 in the zone of contact of the door 11. The refrigerant passing through the filter-drier 4, enters the capillary tube 8, sequentially passing through the regenerative heat exchanger 10, the rolling-welded evaporator 9 and the entire length of listotrubnye evaporator.At the blind end 12 listotrubnye evaporator 6 begins the process of boiling of the refrigerant. Vapor-liquid mixture is sucked by the compressor, there is a heat exchange between the liquid refrigerant moving through the capillary tube, and a vapor-liquid mixture moving along sistotrema the evaporator 6.The latent heat of vaporization of the liquid phase vapor-liquid mixture and intensive washing of the capillary tube can further cooling the liquid refrigerant flowing into the hollow end 12 listotrubnye evaporator 6 and, therefore, to intensify the process of TLC 14 enters the output channel 15 and lithotrophy the evaporator 7, in which the process further boiling of the refrigerant. Clicking on sistotrema the evaporator 7, the vapor-liquid mixture is fed into the input channel 16 of the evaporator 9.Channel 17, the refrigerant enters protronic 18, where daciana refrigerant, and the outlet channel 19 pairs of refrigerant through the regenerative heat exchanger 10 are received in the compressor 5.To avoid overflow of the liquid refrigerant from the input channel 13 in the outlet in Suzanna 20 rolling-welded evaporator capillary tube 8 is compressed. Household freezer containing thermally insulated Cabinet with tube heating doorway, door, compressor, condenser, capillary tube, a regenerative heat exchanger, the evaporator and the filter-drier, characterized in that the evaporator is made lithotrophy, when this freezer is equipped with additional lithotrophy evaporator and rolling-welded evaporator-Protoria, the latter contains two input and two output channels for connection Discotronic evaporators, one of which is located inside the entire length of the capillary tube, and the tube is heated door opening with one hand is connected with the output of the Sabbath.
FIELD: cooling, particularly self-contained movable devices, domestic refrigerators with several compartments.
SUBSTANCE: method involves successive pumping cooling agent in condenser; throttling thereof; moving cooling agent to cooling chamber evaporator; additionally throttling thereof and feeding cooling agent to freezing chamber evaporator with following sucking cooling agent off; drying vapor-and-liquid mixture in cooing chamber evaporator under temperature of 0 … - 5oC; boiling vapor-and-liquid mixture in freezing chamber evaporator under temperature of -20 … -30oC.
EFFECT: reduced energy losses.
FIELD: domestic refrigerators.
SUBSTANCE: refrigerator comprises thermally insulated chamber, cooling device with a cooler, additional cooling device with the additional cooler mounted inside the thermally insulated chamber for direct cooling of products, and temperature controller. The additional cooling device is provided with a working unit which comprises reference-input element, actuator, control device, and controlled pressure-tight passages which are used for circulating coolant cooled by ambient air and pass through the wall of the chamber. The passages are the inlet and outlet for the additional coolant and are directly in communication with the ambient air which circulates in the space of the additional cooler and is cut-off by means of the control device and actuator.
EFFECT: enhanced efficiency.
25 cl, 21 dwg
FIELD: self-contained movable devices, for instance domestic refrigerator with cooling compartments at different temperatures.
SUBSTANCE: control method for double-chamber refrigerating plant involves taking fresh product chamber 1 temperature as reference temperature, wherein heat penetration in above fresh product chamber 1 is low at low ambient air temperature; using fresh product chamber 1 temperature and repeatedly starting compressor 4 by activating heater 3 to avoid long inactive state of compressor 4 and to increase freezing chamber 2 temperature up to value exceeding desired temperature value. Heater 3 activating time is dynamically determined in dependence of compressor 4 operation intensity.
EFFECT: provision of optimal operational characteristics of refrigeration plant irrespective of ambient temperature change.
5 cl, 3 dwg
FIELD: designs of refrigerators.
SUBSTANCE: refrigerator with inner cavity restricted by heat insulation housing and door and having plate type evaporator arranged on wall of housing for cooling inner cavity and placed at least on part of wall of lower (at working position of refrigerator) zone of inner cavity. Refrigerating capacity of evaporator in its part related to lower and to upper zones respectively is calculated in such a way that in upper zone of inner cavity lower temperature is achieved in comparison with temperature achieved in lower zone of inner cavity. Evaporator is made, practically in the form of rectangle in one angle of which in part of wall related to lower zone cutout is formed. Or evaporator has in part of wall related to lower zone region with lowered refrigerating capacity in comparison with refrigerating capacity of remaining surface of evaporator. In front of said region inside inner cavity of refrigerator extensible shelf is arranged.
EFFECT: possibility for creating inside inner space of refrigerator zone suitable for storing drinks.
11 cl, 10 dwg
FIELD: cooling equipment, particularly freezers.
SUBSTANCE: freezer has the first and the second cooling zones adapted to maintain different temperatures and ice generator. Ice generator comprises cooling loop filled with coolant. Ice tank is in thermal contact with the cooling loop through the first heat-exchanger. The ice generator cooling loop is separated from freezer cooling loop and comprises the second heat-exchanger arranged in the second cooling zone of the freezer. Ice tank is located in the second cooling zone.
EFFECT: decreased time and increased costs of ice generation.
10 cl, 4 dwg
FIELD: lighting; heating.
SUBSTANCE: refrigerator comprises a housing, a door providing access into the housing, one or more shelves provided in the housing and used for placing thereon various things such as containers for storing food products, a supporting device comprising more than one holder for placing thereto a large and shallow plate or a frying pan provided with a bottom and a border, and a lower bearing surface being arranged on the holder and supporting the plate or pan bottom so that the centre of gravity remains outside; and an upper bearing surface being arranged under the holder and supporting the border of the plate or pan placed on the lower bearing surface, preventing thereby the creation of torque of the plate or pan weight, and the centre of gravity of the plate or pan remains outside the lower bearing surface, and providing thereby cantilever suspension of the plate and pan by wedging up its border between two holders.
EFFECT: providing access to non-involved volumes in the housing and on the shelves for efficient use thereof.
7 dwg, 7 cl
SUBSTANCE: electro refrigerator comprises a metal case, a cooling and freezing chambers, a cooling assembly consisting of an electric motor and compressor, an evaporator, an automatic thermo regulator and electric circuit; the refrigerator has a thermos with heating a hot meal, a hot chamber with electric heating, an electric motor and compressor installed into a pressure tight case containing a cooling agent Freon-12 and oil "ХВ-12" with a filter, a forcing pipe which is transformed into a condensing pipe, a dehydrator and a suction tube; at that the hot chamber is located at a cooling assembly level and is divided with a latticed partition and thermo insulated from all sides including the door, deep in a recess of the chamber the cooling assembly is located, while from the side of the door there is a place for a cooked meal; at that outside the case of the cooling assembly is equipped with ribs for enhancing heat emission; near the case the forcing pipe is made as a coil and serves as a tray for a cooked meal; at that the hot chamber is equipped with a thermo regulator to maintain a preset temperature in the chamber.
EFFECT: invention allows keeping a hot meal in a thermos avoiding heating.
SUBSTANCE: invention relates to cooling compartments, refrigerators with proper cooling compartments and methods of control. Super-cooling device contains storage compartments and super-cooling compartments. Storage compartments are supplied with cooled air from cooled air supply unit. Super-cooling compartment is inside storage compartment. Air-cooled super-cooling compartment cools down products. It consists of container and cover. Container forms free space for product storage. Cover is used for opening and closing container outlet. There are holes in cover for cooling air supply to and from super-cooling compartment. There is also a screen in cover to open and close holes. In addition, super-cooling plant contains temperature sensor inside super-cooling compartment and control unit.
EFFECT: development of refrigerator and control method, which may keep drinking compartment temperature at optimal levels and produce super-cooled drink in fast manner.
26 cl, 11 dwg
SUBSTANCE: refrigerator includes refrigerating chamber, which is arranged accordingly in top part of refrigerator body, and freezing chamber, which is arranged accordingly in bottom part of refrigerator body, contains ice-generating chamber, which is separated in refrigerating chamber by means of isolating partitions and contains ice generator for generation of ice and ice storage for storage of ice produced in ice generator, one or several heat-exchanges that serve as composite parts of heat exchanging cycle for creation of cold air and regulation of temperatures in refrigerating and freezing chambers, and give-out device that communicates with ice storage and is installed on the door. Application of this invention provides minimum losses of cold air in case of door opening, simplification of give-out device for water supply.
EFFECT: provision of minimum losses of cold air in case of door opening, simplification of give-out device for water supply.
32 cl, 7 dwg
SUBSTANCE: refrigerator for operation with use of low climatic temperatures contains a heat-insulated case with freezing and refrigerating sections, refrigerator set which evaporator is installed in the freezing section, heat rejection device for abstracting heat from the refrigerating section, the said heat rejection device being made in the form of a thermal pipe which condenser site is installed so as to maintain thermal contact with the refrigerator set evaporator. The thermal pipe evaporation site is located in the refrigerating section. To highways of the refrigerator set detachably jointed is a condenser with separate channels for gas and liquid, arranged outside the heated premises, on which gas supply highway a NO return valve is arranged. The thermal pipe rejecting heat from the refrigerating section to the freezing one is equipped with separate channels for gas and liquid, with a NO valve installed on the gas channel. The refrigerator shell also incorporates an in-built heater and remotely programmed processor connected, by means of control circuits, to the refrigerator set compressor, thermal pipe valve and the heater and, by means of metering circuits, to environment temperature gauge and temperature gauges in freezing and refrigerating sections of the refrigerator.
EFFECT: invention enables independent temperature adjustment in refrigerating and freezing sections of refrigerator.