Abstract:
Due to the high pace of industrialization of the Republic of Kazakhstan, the electric power industry is becoming
one of the priorities in our country. To increase the volume of electricity, the power industry is being reequipped
with an increase in the technical and economic level of electricity production. In this light, the reequipment
of the Electric central heat looks the most promising. Leads to the effective production of not only
electricity, but also thermal energy. The main indicator of the economical operation of a thermal power plant
is the specific consumption of thermal energy for the generation and release of a unit of electrical energy.
The article provides calculations of the diameter of the main steam pipelines of the supply pipelines of the
Electric central heat with the capacity of 325 MW. Data on the choice of steam generators and turbines (drum
with natural circulation and without reheat) are given. The authors proposed a block diagram with the same
type of steam generators using a common station steam main. In order to use the redundant production selection
at the Electric central heat, a sectional layout of the main steam pipelines is selected in connection with
the fact that it is a more universal and reliable scheme. The authors make an initial calculation of the internal
diameter associated with the water speed, which is compared with the recommended values. The diameter
of the line from the deaerator to the collector of the pump of the electric pump is determined.
