The device maintain the temperature in the refrigerator
(57) Abstract:The device contains a freezer and/or at least one refrigerating chamber, a closed circulating a refrigerant circuit with a compressor and successive evaporators in freezing and/or refrigerating chambers, temperature sensors , connected through electrical cords and connectors with the power on and off through the block processing parameters. The device is provided by the encoding means in the form of the relationship between the temperature sensors and the power on and off, while the coding means is arranged to generate algorithm block processing parameters depending on the model of refrigerator. The invention allows to unify the nodes of the electrical control circuit of the refrigerator. 1 Il. The proposal relates to low-temperature technique, in particular to devices maintain the temperature in the refrigerator.A device maintaining the temperature in the refrigerator, freezer containing and/or at least one refrigerating chamber, a closed circulation loop with a compressor, and successive evaporators is Ashimov with blocks on-off switch (see Uchanski B. C. and other Refrigeration equipment. The food industry. M., 1971, S. 240).The disadvantages of the known technical solution is complicated control system, based on the individual control units of the unit processing parameters for each model of refrigerator, in connection with this complication in the installation and Assembly, which entails a reduction in the quality and cost of product design.The technical result of this device is to increase the efficiency of the evaporator chambers of the refrigerator, reducing the time to reach the desired temperature in the refrigerating and freezing chambers, improving the accuracy of temperature control in all temperature zones at any temperature in the room and the reduction due to the consumption of electricity, the unification of the nodes of the electrical control circuit of the refrigerator.The technical result is achieved in that the device maintain the temperature in the refrigerator includes a freezer and/or at least one refrigerating chamber, a closed circulation loop with a compressor, and successive evaporators in freezing and/or refrigerating chambers, temperature sensors, connected to the com of the processing parameters and the encoding means, representing the relationship between the temperature sensors, the processing unit options and unit on and off, while the coding means is arranged to generate algorithm block processing parameters depending on the model of the refrigerator.In Fig. 1 shows a device for maintaining the temperature in the refrigerator. In Fig. 2 is an embodiment of the coding means.The device comprises a freezing chamber 1, the refrigerating chamber 2, a closed circulation loop with a compressor 3 and successively installed evaporators 4 and 5, respectively, placed in insulated casing 9 fridge freezer 1 and the refrigerating chamber 2. In the freezer 1 posted by sensor 6 temperature sensors 7 and 8 temperature respectively installed in the refrigerating chamber 2 and on the surface of the insulated housing 9 of the refrigerator. The device is equipped with a power on-off switch 10 and the processing block parameters 11 and the encoding means, which is, for example, the connector 12 or the electric cord 13. One of the possible embodiments of encoder can be counter part 14 of the electrical connector 15 of the processing unit of paradine in some combination, corresponding to this model of refrigerator.The device operates as follows. The compressor 3, the refrigerant is fed into the evaporator 4 of the freezing chamber 1, and then communicated with him in the evaporator 5 of the refrigerating chamber 2. Monitor the temperature in the freezing chamber and the refrigerating chamber. Taking into account the rise and fall of the specified limit values of the temperature in one of the cells, respectively, terminate or renew the supply of refrigerant to the evaporators 4,5.Block processing parameters 11 has several algorithms to control the temperature in the cells of different models of refrigerators.Each model of refrigerator has its own code, embedded in the encoder, for example, in the electrical connector 15, with the help of made in the relevant combination of jumper pins 15, second portion 14 of the connector electrical connection cord 13. I.e. unique, in this embodiment, use of the coding device, for each model of refrigerator is a combination of jumper pins 16 return part 14 of the electrical connector 15 of the block processing parameters 11. Unit 10 on and off, the unit of processing parameters 11, the electric connecting cord 13, the electric is specifications specifications. When assembling the electric circuit is the encoding of the refrigerator. When the first and subsequent inclusions of the refrigerator to the electrical network, an automatic algorithm selection unit processing parameters corresponding to the model of the refrigerator.Thus, the use of this suggestions will allow to unify the nodes of the electrical control circuit of the refrigerator will increase the quality and cheapen them. The device maintain the temperature in the refrigerator containing a freezer and/or at least one refrigerating chamber, a closed circulating a refrigerant circuit with a compressor and successive evaporators in freezing and/or refrigerating chambers, temperature sensors, connected through electrical cords and connectors with the power on and off, characterized in that it is provided with a processing unit parameters and encoding means, in the form of the relationship between the temperature sensors, the processing unit options and unit on and off, this encodes the tool has a capability of forming algorithm block processing parameters depending on the model Kholodilin
FIELD: cooling engineering.
SUBSTANCE: device comprises two temperature gauges, unit for comparing temperatures, unit for generating alarm signal on wet stroke, converters for converting signals from temperature gauges into the alternating signals, frequency synchronizer, amplifier, and protecting relay. The first temperature gauge is set in the line for supplying coolant to the object to be cooled. The second temperature gauge is set at the inlet of the line for withdrawing the vapors of coolant from the object to be cooled to the bridge of switching of the compressors. The converters are synchronized in frequency. The unit for comparing temperatures is made of a transformer with magnetization and two primary windings which are connected in series with the signal converters. The secondary winding is connected with the input of the amplifier whose output is provided with the protecting relay.
EFFECT: enhanced reliability.
FIELD: mechanical engineering, particularly devices to prevent wet vapor ingress in cylinders of compressors used in gas-processing plants for pressure increase in natural gas pipelines.
SUBSTANCE: device comprises horizontal sucking pipe and emergency shutdown sensor. Low-frequency ultrasound generator is arranged inside horizontal sucking pipe. Ultra-violet radiation sensor is installed in lower part of horizontal sucking pipe and is spaced 0.1-1 m from low-frequency ultrasound generator.
EFFECT: increased operational reliability.
FIELD: conditioning system, particularly ones adapted for vehicle conditioning and provided with centrifugal compressors.
SUBSTANCE: cooling plant comprises closed loop with sealed centrifugal pump with built-in electric motor, as well as condenser with axial fan, thermostatic expansion valve and evaporator. Thermal phial of thermostatic expansion valve is installed at evaporator outlet. Bypass line with throttle is connected in parallel to thermostatic expansion valve. Object to be conditioned is communicated to evaporator through air loop provided with centrifugal fan. Throttle has locking valve and bellows-type pneumatic drive having control cavity communicated with thermal phial of thermostatic expansion valve.
EFFECT: simplified structure and increased operational reliability.
FIELD: refrigerating engineering.
SUBSTANCE: refrigerating plant comprises vessels and metallic pads that underlie the vessels and are connected to the pipeline through branch pipes. The pipeline is mounted with an inclination and is connected with the pressure-tight tank for collecting spilled ammonia. The tank is connected with the atmosphere through the pipeline and stop valve and is provided with air separator for removing air from its steam zone, branch pipes, and pipeline.
EFFECT: enhanced efficiency.
3 cl, 1 dwg
FIELD: lighting; heating.
SUBSTANCE: invention proposes a method for controlling operation of a refrigerator compressor whereby thawing is effected when the temperature inside the refrigerator reaches a predetermined thawing temperature. Refrigerating capacity of the compressor mounted inside the refrigerator is changed depending on the temperature inside the refrigerator by regulating the direction of rotation of the compressor. The refrigerating capacity of the compressor is increased by rotating the compressor in one direction and is decreased by rotating the compressor in another direction, this second direction being reverse to the first one. Prior to thawing the compressor is repeatedly rotated in the second direction and stopped until the predetermined thawing temperature is achieved inside the refrigerator. After thawing the compressor is rotated in the first direction until the predetermined temperature is achieved and in order to maintain this predetermined temperature the compressor is periodically stopped or rotated in the second direction. A device for controlling operation of a refrigerator compressor includes a microcomputer, a working frequency converter, a rotation signal generating unit and a unit for measuring temperature inside the refrigerator. The working range of the temperature measuring unit is predetermined depending on the compressor rotation direction.
EFFECT: reduced power consumption by a refrigerator; increased capacity and precise temperature control of the refrigerator.
FIELD: air conditioning.
SUBSTANCE: invention pertains to the technology of air conditioning. The air conditioner has a heat source device and a terminal device, joined by connection pipes for a coolant, in which there is exact determination of whether the contour of the coolant has the required amount of coolant or not. The conditioner can work, when switched in any of the normal working modes, in which the heat source device, consisting of a compressor and a lateral heat exchanger of the heat source device, is joined to terminal devices, consisting of lateral expansion valves and terminal lateral heat exchangers, using connection pipes. Each device is controlled depending on the work load of the terminal devices, or the working mode is determined by the quantity of the coolant, in which the terminal devices carry out cooling operations, and the running power of the compressor is regulated such that, the pressure during evaporation of terminal lateral heat exchangers is constant with control of lateral expansion valves such that, the degree of super heating on outlets openings of terminal lateral heat exchangers have a positive value.
EFFECT: accurate determination of whether the coolant contour has the required amount of coolant in a monofunctional conditioner.
12 cl, 10 dwg
SUBSTANCE: invention is referred to electric engineering and may be used for cooling devices. Cooling device freezes products without additional inducer due to compressor motor operation in cooling cycle at alternating speed rates from power supply voltage.
EFFECT: improvement of productivity by freezing.
4 cl, 7 dwg
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: present invention pertains to a cooling device. The cooling device has cooling circuit (9) comprising: i) compressor (2), executing the cooling cycle; ii) evaporator (3), absorbing heat energy of the medium being cooled; iii) condenser (4), transmitting heat energy to an external medium; iv) capillary pipe (5), allowing for expansion of the cooling agent coming out of condenser (4), and carrying the cooling agent to evaporator (3); v) valve (6) with electromagnetic control, controlling flow of the cooling agent and located between condenser (4) and capillary pipe (5); vi) bypass line (7), leveling pressure in the sucking and blowing parts of the compressor (2). The cooling circuit (9) also has: i) valve (16) electromagnetically controlled, which prevent reverse flow to evaporator (3) when compressor (2) is not working and which is in the sucking part of the compressor (2); ii) control mechanism (8), which delays opening of electromagnetically controlled valve (16) by a period, which runs from starting the compressor (2) until a limit value of torque is attained.
EFFECT: prevention of migration of cooling agent when the compressor is not working and easier start up of the compressor.
3 cl, 3 dwg
SUBSTANCE: method for operation of heat pump may be used in refrigerating equipment and in heat pump sets for heat and cold supply to consumer. Mentioned technical problems are solved by method of heat pump operation, which includes serially realised processes of working medium compression and expansion with its transition from compression chamber to expansion chamber and back with heat removal after compression process and heat supply after expansion process, at that compliance of pressure value in the end of expansion process to pressure value in the beginning of compression process is maintained by means of additional working medium supply to expansion chamber, in which expansion process is realised in at least two expansion chambers, and supply of additional working medium in expansion chambers is realised by means of its transfer directly from one expansion chamber to the other.
EFFECT: increased efficiency parametres of heat pump.
FIELD: refrigeration equipment.
SUBSTANCE: refrigerating system comprises removable network panel installed on outer surface of refrigerator and TV module or TV antenna unit adapted to receive TV signal and transmit thereof to network panel in wireless manner. This avoids the need to connect the refrigerator with TV antenna output by wires. TV module or TV antenna unit is connected to TV receiver or to TV antenna output to receive TV signal and to transmit the signal to network panel adapted to receive and display the TV signal.
EFFECT: elimination of wire connection between refrigerator and TV antenna output and, as a result, possibility to install the refrigerator in any location, increased convenience of TV watching with the use of the refrigerator.
17 cl, 5 dwg
FIELD: refrigeration equipment, particularly provided with arrangements or mounting of control or safety devices.
SUBSTANCE: refrigerator comprising at least one cooling chamber defined by housing and door thereof. Temperature inside the cooling chamber varies within a certain range in dependence of location and time. The cooling chamber comprises a number of areas in which above local range of temperature fluctuations in dependence of location and time is less than common range of temperature fluctuations of cooling chamber as a whole. Display, which indicates representative data concerning above temperature fluctuations in at least one cooling chamber area is also provided.
EFFECT: possibility to store different food products in above cooling chamber in optimal storage conditions.
17 cl, 8 dwg
SUBSTANCE: method comprises cooling blood in the course of donation with forced circulation of air in the working chamber of the first thermostat and setting the container in the second chamber of the second thermostat after donation, where the containers filled with blood together with the containers filled with the same amount of donor's blood imitator are allowed to stand at a temperature close to that of the normal body temperature. The device comprises first thermostat whose first working chamber receives cooling member, fan, and first temperature gauge, first control unit with two commutating contacts, and first temperature controller. The second thermostat has the second working chamber that receives the second heater, second temperature gauge, second control unit, and second temperature controller.
EFFECT: enhanced cooling rate.
5 cl, 7 dwg