Some problems of the design, manufacture, installation, and operation of mechanical equipment in low-temperature regions

Conclusions

• 1. The most important direction in works to increase the efficiency of producing mechanical equipment and metal structural elements intended for service at minus temperatures is a substantial improvement of the quality of products being manufactured.

• 2. The choice of materials for mechanical equipment of hydraulic structures in a “northern make” can be made only by a comprehensive approach with consideration of the characteristics of their production and operation of the mechanical equipment.

• 3. When choosing the grade of steel it is necessary to attach particular importance to the structure of the fracture, on the quantity of fibers of which at low temperatures depends the resistance of highly loaded structural elements and mechanical equipment.

• 4. Designing of deep high-head gates requires consideration of problems which must be solved only with reference to the particular structure and with complete satisfaction of the temporary and permanent operating conditions.

• 5. The gate chambers of intakes located in low-temperature regions must have a closed heated room.

• 6. It is completely impermissible to put into operation mechanical equipment intended for operating at low temperatures without having completed the installation of various types of heating systems, insulation, and air-blowing devices and without having checked their reliable operation.