The article presents the parameters of the operation of water-jet elevator units, which are widely used in heat supply systems. A new design of a water-jet elevator unit with a pulsed heat transfer medium, adjustable depending on the outside air temperature without using a mixing pump, is proposed. A description of the design and principle of operation of a water-jet elevator unit with a pulsed heat carrier suspension is given. To confirm the effectiveness of the proposed technical solution, laboratory hydraulic tests of the.

Keywords: Elevator, weather control, heating system, controller, pump, valve, sensor, temperature, heat energy, tariff

The content of the concept and definition of the term "Labor protection" are analyzed, the points of view of scientists and practitioners are critically rethought, the expediency of an expanded interpretation of the concept and a corresponding change in the definition of the term is formulated and justified. Conclusions and recommendations may be of interest to specialists in the field of occupational health and safety.

Keywords: labor protection, concept, term, definition, social and labor relations, labor safety, organization, institute of labor protection, regulation

In order to master the growing volumes of passenger and cargo transportation, the expediency of separating cargo and passenger traffic in the main directions of the SCR is considered, both from a technological and economic point of view. The main requirements for specialized trains are considered, which makes it possible to increase the competitiveness of railway transport and reduce operating costs accordingly; increase the carrying capacity and make it possible to master additional volumes of passenger and freight traffic to the Southern region of Russia and the Crimean Peninsula. In the context of specialization of the main directions of the SCR, a corresponding strengthening of their infrastructure will be required to increase the speed of passenger and freight trains, change the nature of the work of a number of technical stations and the development of transport hubs. To increase the capacity and carrying capacity of passenger traffic, it is proposed to introduce the technology of interval control in the entire direction of Sokhranovka-Rostov-Adler, and to improve the efficiency of transport management in this direction, the development of paperless technologies that provide for the conversion of speech commands into written standard orders with entry in automated logs.

Keywords: transport growth, infrastructure constraints, elimination of barrier areas, digital railway, interval regulation, paperless technology, freight transport efficiency