The article discusses the prospects of replacing the hydrostatic test in the technical examination and engineering certification of steam and hot water pipelines and boilers with testing by working medium with the use of acoustic emission method.
A review of methods of regulation and control of pumping stations (NS). Among the methods of regulation, the most economical and promising is frequency regulation, the effectiveness of which manifests itself with a wide range of speed control and feed pump units (ON). A review of typical structural constructions of the NS motor-driven systems has been carried out.
he article is devoted to the approach to checking the technical condition of flow meters used at one of the most representative classes of heat power facilities – open systems for providing heat, i. e., such systems from which water is taken for hot water supply. Leaks (or make-ups, which are leaks with a negative meaning) and instrumental measurement errors exceeding the permissible values are considered as the most common defects in practice. A method for solving the problem is proposed, it allows not only to identify the cause of the defect, but also to obtain specific values of the diagnosed leakage and error values.
Equipment maintenance procedure in most organizations is imperfect, which often leads to an increase in the total cost of equipment ownership due to downtime. A competent approach to organizing maintenance helps prevent malfunctions and associated negative consequences.
With the development of agriculture, animal husbandry, the leading place in the energy balance takes processing biological waste. Many scientists are working on the problem of disposal of organic waste, highlighting the basic criteria of expediency. In this article, the analysis of all aspects of the transition to a recycling facility, given a full economic assessment of the bioenergy balance, raised problems and propose methods to solve them. The data used are characteristic of the regions of the Russian Federation with the development of agro-industrial.
This article analyzes the nature of work and the safety of workers employed in the field of water supply and sanitation. Injury statistics and traumatic factors are also considered, in order to determine the main causes of the occurrence for the development of measures to prevent them.
