SU890039A1

SU890039A1 - Apparatus for cooling objects

Info

Publication number: SU890039A1
Application number: SU802894435A
Authority: SU
Inventors: Юрий Александрович Новосельский; Алексей Николаевич Казаков; Владимир Николаевич Воробьев; Сергей Борисович Анохин
Original assignee: Предприятие П/Я М-5703
Priority date: 1980-03-10
Filing date: 1980-03-10
Publication date: 1981-12-15

Description

II

Изобретение относитс к холодильной технике, а именно к устройствам .. дл охлаждени объектов в жидких растворах в заданном иетервале температур .The invention relates to refrigeration engineering, namely to devices. For cooling objects in liquid solutions in a given temperature range.

Иэвестнр устройство дл охлаждени объектов, содержащее теплоизолированный сосуд дл жидкого хладагента , снабженный хвостовиком, на кото-, ром закреплен кожух с образованием замкнутой полости дл размещени объекта охлаждени В указанном устройстве используетс эффект посто нства температуры кипени хладагента при атмосферном давлении, что не позвол ет осуществл ть охлаждение объекта в расчетном интервале температур.The prior art device for cooling objects, which contains a thermally insulated vessel for liquid refrigerant, equipped with a shank, on which a casing is fixed to form a closed cavity to accommodate the object of cooling. The device uses the effect of constant refrigerant boiling temperature at atmospheric pressure, which does not allow cooling of the object in the calculated temperature range.

Наиболее близким к предлагаемсжу по технической сущности и достигаемому результату вл етс устройство дл охлаждени объектов, включакицее телОизолированный кожух с размещенной в нем емкостью дл хладагента иThe closest to the proposed technical essence and the achieved result is a device for cooling objects, including a tel-insulated casing with a capacity for refrigerant and

22

объекта, а также отдельно расположенный баллон с сжнженным газом 2.an object, as well as a separately located gas cylinder 2.

Однако данное устройство имеет значительные габаритные размеры н массу из-за необходамости использовани дополнительного источника знергии в виде баллона с сжиженным газo 4 .However, this device has significant overall dimensions and mass due to the need to use an additional source of energy in the form of a cylinder with liquefied gas 4.

Цель изобретени - уменьшение габаритов и материалоемкости устройст10 ва.The purpose of the invention is to reduce the size and material consumption of the device.

Поставленна цель достигаетс тем, что устройство дл охлаждени объектов , включающее теплоизолированный кожух и размещенную в ией емкость The goal is achieved by the fact that a device for cooling objects, including a heat-insulated casing and placed in its tank

Claims

t $ for the refrigerant and the object, equipped with a U-shaped evaporator tube installed in the container for the refrigerant and the object, while one of the rings of the tube has radial through holes from 20 versts, and the lower part of the other is placed between the outer wall of the container and the inner wall of the thermally insulated casing . Ha the drawing shows schematically the proposed device, a general view. The device for cooling the object consists of a heat-insulated casing 1, in which a container 2 is built with a gap to accommodate the zamora ™ of the living object 3 immersed in a liquid refrigerant, for example, a water-rich solution 4. In the container 2 a U-shaped evaporator tube 5 is installed on one of the the rings of which are made throttling holes 6, while the end of the other bend of the tube 5 extends beyond the limits of the container 2 into the cavity formed by the outer wall of the container 2 and the inner wall of the casing 1. The principle of operation of the proposed device is as follows. When supplying heat leakage, both outside the environment and internal from the cooled object, such as a laser range finder, to the ammonia water solution 4 poured into the tank 2, it begins to boil with release of ammonia vapors with the calculated values of temperature and pressure. The opening 6 in the upper part of the tube 5. The boiling of the refrigerant 4 is accompanied by a decrease in the concentration of ammonia in the solution at constant pressure and an increase in the boiling point. The ammonia vapors are discharged through the evaporator tube 5 into the cavity between the housings of the container 2 and the casing 1 and are released into the atmosphere, the additional part of the heat flow is discharged. tempo The structure of the river of solution 4 due to the more intense removal of ammonia vapors from the pony 9. UP TO a value equal to the boiling point, with a new pressure value, the ratio of the diameters and distances between the holes 6 in the drainage tube in each case is determined by calculation. The proposed technical solution makes it possible to sufficiently control the specified temperature range, eliminates the need for additional energy sources, improves the thermal insulation, which together increases the efficiency of the cooled object. The use of this device for cooling the laser range finder makes it possible to measure the underground cavities with the necessary accuracy with this device and to refuse to determine their objects using the method of filling with water. Claims An apparatus for cooling objects, including a heat-insulated casing and a container for a refrigerant and an object located therein, characterized by 4TOj in order to reduce dimensions and material consumption, is equipped with a U-shaped evaporation tube installed in the container for the refrigerant and the object, one From a koLen the tube has through radial holes, and the bottom hour is placed between the outer wall of the container and the inside wall of the heat-insulated casing. Sources of information “1, taken into account in the examination. USSR Author's Certificate No. 428168, cl. F 25 D 3/10, 1972.

2. Klimenko, AP and others. Cold in mechanical engineering. Engineering, J977, p. 157-158, fig. 89

3 "; .-