Vol 90, No 4 (2001)

The course of the country's leadership towards industrialization and the rapid growth of the refrigeration industry in the 1920s and 1930s predetermined the need to create a single educational and scientific center that would provide the developing industry with refrigeration specialists. On May 31, 1931, the Council of People's Commissars of the USSR, by Decree No. 431, opened in Leningrad in the building of a former commercial school built in 1872 on Cherpyshev lane, house 9, a center for refrigeration engineering - the Leningrad Educational Mechanical and Technological Refrigeration Plant, which united the institute, the workers' faculty and technical school.

In 1947, the Department of Sanitary Engineering was founded at the institute. The first two years it was headed by Professor A.N. Budnyakov, and from 1948 to 1967 - by Professor R. M. Ladyzhensky, under whom since 1961 it became known as the Department of Air Conditioning, Sanitary Engineering and Labor Protection.

В 50-х годах XX века основанных отраслях науки и техники начались интенсивное развитие новых технологий, в значительной степени связанных с использованием криогенных темпе­ратур. Это относится В первую очередь к таким отраслям, как металлургия, химия и ракетно-космически техника. Для работы в них потребовались инженерные кадры, имеющие необходи­мые знания в области криогеники.

In the 830s, the building of the Cathedral of Christ the Savior was blown up and the construction of a high-rise building of the Palace of Soviets began in its place.
A huge pit was dug and the metal structures of the foundation of the high-rise building were erected. At the beginning of the Great Patriotic War, construction was stopped, the metal structures were cut off and used as anti-tank barriers in the defense of Moscow. After the end of the war, the construction of the Palace of Soviets was not resumed, and an outdoor swimming pool was built on the site of the foundation pit.
In the mid-90s, with the active participation of Moscow Mayor Yu.M. Luzhkov, a decision was made to eliminate the pool and restore the Cathedral of Christ the Savior on this site. The design and architectural work on the reconstruction of the temple was led by the director of the Mosproekt-2 Institute M.M. Posokhin

The use of R22 refrigerant instead of R502 in low-temperature refrigeration equipment is associated with the need to fulfill a number of special requirements for the design of the compressor and refrigeration oil. By increasing the R22 condensing pressure, the discharge temperature can quickly reach unacceptable values. With prolonged operation under such conditions, the stability of the oil in the mixture with the refrigerant drops and, as a result, the life of the compressor is reduced. It is possible to reduce the discharge temperature by using a special cooling system that uses a controlled injection of liquid refrigerant into the compressor suction cavity. In relation to Bitzer compressors, such a system is called CIC (Controlled Injection Cooling). The consumer has a reliable way to limit the discharge temperature in four- and six-cylinder reciprocating compressors

A seminar held on November 14-17, 2000, organized by the Kholod training plant (under the jurisdiction of Rosmyasomoltorg OJSC) for chief engineers and heads of compressor shops of food enterprises and cold storage plants, was devoted to this topical topic. The seminar was attended by representatives of the cold storage plant st. Uzlovaya, Smolensk, Zhukovsky, Kaluga, Voronezh, Saratov cold storage plants, as well as the board of Rosmyasomoltorg OJSC, research and design organizations, universities, firms, etc.

Insulating gas masks IP-4m, IP-5, IP-6 and regenerative cartridges for them RP-4-01, RP-5, RP-6.