SU909228A1 - Close-circuit heat supply system - Google Patents

Description

one

This invention relates to large centralized heat supply systems for goods and industrial complexes.

A known closed heat supply system comprising a supply and return lines, a mixing device and a jumper connecting the mixing device with the return line 1.

Closest to the present are closed heat supply systems comprising supply and return pipes, a mixing device, a jumper connecting the mixing device with a return pipeline and a storage tank with a regulator mounted on the return pipe 2.

The disadvantages of this device are the increased flow of water in the return pipe and the impossibility of lowering the return network water temperature below the daily average after the heating system.

The purpose of the invention is to increase the efficiency of the system.

This goal is achieved by the fact that the heat supply system is closed, containing supply and return pipes, a mixing device, a jumper connecting the mixing device with a return pipe and a storage tank with a regulator, installed on the return pipeline, provided with an additional storage tank with a regulator torus located on the jumper.

The drawing shows a schematic diagram of the proposed heat supply system.

Q The device contains accumulator tanks 1 and 2 with regulators 3 and 4, a jumper 5 connecting 6 and return 7 pipelines and a mixing device.8.

The system works as follows. The charging mode of the tank 1 is controlled by a regulator 3, designed to pass water with a temperature above a certain predetermined value. Tank 2 with temperature regulator 4 is charged with cold water c. temperature below the set temperature

20 tank charges 1. Thus, tanks 1 and 2 are charged periodically and discharged continuously for 24 hours. The tank 1 is discharged and the feed pipe is by means of a mixing device. As a result, it is possible to reduce

water consumption in the transit network both by reducing the temperature of the water in the return pipeline, and by increasing the upper limit of the increase in the design temperature of the water in the supply pipeline of the transit network. Tank 2 is discharged into the return line.

Taking into account that the temperature of water in tank 2 is lower than the average daily temperature in the absence of storage tanks, then, accordingly, the generation of electricity from heat consumption at CHP plants with the same calculated temperature of supply water in the supply pipe will be higher than in the heat supply system without separate accumulation of return flow network water.

The proposed system allows to increase the upper limit of the increase in the estimated temperature of the network water in the supply pipelines and to obtain the technical feasibility of further reducing the flow of water in the transit networks; to significantly reduce intraday fluctuations in the temperature of the water in the return pipeline after tanks and accumulators, as well as to increase the efficiency of the heating turbines by reducing the temperature of the water in the return pipelines.

Claims (2)

1.Sokolov E. Ya. Heat and heat networks M., “Energie, 1975, p. 60, fig. 33. 2.Sokolov E. Ya. Heat and heat networks. M., “Energie, 1975, p. 77, fig. 39 C