RU2002168C1 - Method for intermittent operation of heat supply system and heat supply system for intermittent operation - Google Patents

Description

the boiler for a single pipeline according to the mass balance is defined by the following expression:

Tn / Tot / Wn // WoT-50-100, where the right part of the equality is the ratio of the mass velocity of dry saturated (heating) steam to the mass velocity of its condensate (return water) for the actual operating conditions of a decentralized open heat supply system.

Thus, the duration of the supply of heating steam is equal to the duration of fuel combustion in the boiler and practically coincides with the duration of the entire period of the cycle of operation of the heat supply system. When supplying wet steam from the boiler and increasing the moisture content of the heating steam in the supply pipe due to heat losses, the relative duration of supply to the heat is relative.

1. A method of periodic operation of a heat supply system, comprising supplying a heater and heated water from the latter to a heating device from a boiler through a supply pipe of heating water, and also returning water from the heating devices to the battery and from it through a return pipe to the boiler, characterized the fact that steam from the boiler to the battery and water from the battery to the boiler are supplied through a single pipeline, while the water level in the battery is maintained at the minimum to maximum levels depending on mmar steam supply from the boiler during the period.

steam will increase inversely with the vapor content X at the inlet to the battery according to the analytical

5Tp / TotK5-U) / X

When the boiler 1 is located below the minimum water level in the accumulator 2 at the end of the fuel combustion in the boiler, the vapor pressure in it drops to zero and water

THEN gravity is discharged into the boiler. Moreover, since the boiler and the accumulator are connected as communicating vessels, the water will fill the whole of the pipeline 3-4 and boiler 1. The next period of operation of the system proceeds

15 as described.

(56) Copyright certificate of the USSR N 1592657, cl. F 24 D 9/02, 1988,

USSR author's certificate 20 No. 90131. cl. F 24 D 9/02, 1950.

2. A heat supply system with a periodic cycle of operation, comprising a boiler connected by a steam line with a heated water accumulator, a heated water supply pipe from the battery to the heating devices, and a return pipe for draining water from the heating devices to the battery, and also a pipe for supplying water from accumulator into the boiler, characterized in that the steam and water supply pipes from the accumulator to the boiler are made as a single pipeline, the accumulator has different water levels depending on the vapor pressure in the boiler e, and the latter is installed below the minimum water level in the battery, the boiler and the battery being connected as communicating vessels.

35

at

Gt # r / c.

ffit / ff.j

fi & 2