卷 91, 编号 2 (2002)
Articles
Increasing the technical level of domestic refrigeration equipment
摘要
New ammonia and compressor units developed by NPF “Khimkholodservice” company out basis of screw compressors of the leading European companies — AIRZEN (Germany) and HOWDEN (Scotland) with oil coolers, oil separators, automation systems, power panels with systems of some start of own production, as well as refrigerating machines, evaporators and condensers are described in the article. Use of the components meeting the world technical level considerably improves operational characteristics and service life of Russian refrigerating units and machines.
2-5
Air conditioning systems for clean rooms
摘要
Air conditioning systems for «clean rooms» are described. The operation of the central air conditioning system according to energy-saving technology is offered when only outside air is cooled and dehumidified in the central conditioner. Capital expenditures and energy consumption during operation are considerably reduced in this case.
7-10
Ice machines by Airkul: experience in the food industry
摘要
For a number of years Aircool has been manufacturing flake ice generators for different industries. At present, the company has accumulated certain experience in production and operation of ice generators in fish and meat processing industry. A few concrete examples will give a better idea of the specifics of ice generators application in these industries.
12-12
Experimental study of the cooling system of a domestic refrigerator
摘要
Results of experimental investigation of a two-compartment household refrigerator refrigeration systems on three refrigerants, two of which were zeotropic mixtures are presented. Three different circuits n refrigeration system were studied with these refrigerants. It is shown that use of a zeotropic mixture wilt considerable temperature glide of phase transitions as a refrigerant, will make it possible to considerably reduce energy consumption of household refrigerator.
14-16
Development of the refrigeration industry in Russia (from 1910 to 1914)
摘要
Statistics of those years and its analysis eloquently show that in the Russian Empire with its abundance of food producing areas there were rather high compared with the world prices for basic foodstuffs, such as meat, eggs, fruits and vegetables. So, meat cost 15-25 kopecks per pound (1 pood = 8 rubles), butter - 50-65 kopecks, eggs - 20-35 kopecks per dozen. Prices for New Zealand lamb in London ranged from 10 to 17 kopecks per pound, chilled North American beef was on average 17 kopecks per pound and frozen beef was 9-11 kopecks per pound.
26-30
Multirange platform electronic scales "METRA"
摘要
Scientific and Production Enterprise "Metra" produces, sells and services the entire range of weighing systems - from individual components (strain gauge weighing indicators series "Microsim" for static and dynamic weighing, for continuous and discrete batching, load cells of leading foreign manufacturers firms Sensortronics, Transcell, etc.) to scales and weighing networks of the entire enterprise "turnkey".
40-41
Gas mask RPG-67 and universal RU-60M respirators (SpetsTechSbyt)
摘要
Respirators are designed to protect the respiratory system from vapor-gaseous harmful substances at concentrations not exceeding 10...15 mg/m3 of MPC, and the RU-60M model is also designed to protect against harmful aerosols at concentrations up to 100 mg/m3. They can be used in all climatic zones of Russia at chemically harmful enterprises, when working with fertilizers and toxic chemicals, during painting and handling operations.
42-42