SU1620779A1 - Heat station of central heat supply system - Google Patents

Abstract

This invention relates to heat supply systems for residential and public buildings. The purpose of the invention is to save heat. The heat point of the heat supply system contains a heat consumption regulator 17 for heating, installed on the supply pipe 1 of the heating network before the preheater 9 of the heating system. The pipe 6 for removing the heat transfer medium from the top 3 stage heater is connected to the supply pipe 1 of the heat network, and the additional control 15 of the heat consumption to hot water supply is installed on lintel 11 between water heaters. Together, these distinctive features make the operation of the substation more flexible due to the possibility of switching from a parallel connection scheme to a serial one and vice versa. 1 il.

Description

The invention relates to heat supply systems for residential and public buildings.

The purpose of the invention is the saving of heat.

The drawing shows a schematic diagram of a heat point.

A heat supply point of a heat supply system contains supply and return pipelines 1 and 2 of the heating network, water heaters 3 and 4 of the upper and lower stages, pipelines 5–8 supplying and discharging the heat carrier from the heat network to water heaters 3 and 4 of the upper and lower stages, heater 9 of the heating system and the diaphragm 10 installed on the supply pipe 1 of the heating network, the jumper And connecting the water heaters of the upper and lower stages, the hot water supply pipe 12 connected to the water heaters of the upper and lower stages, regulating OP 13 heat consumption for hot water supply with a temperature sensor 14 installed on the pipeline 5 for supplying heat carrier to the upper stage water heater, an additional regulator 15 for heat consumption for hot water supply with a temperature sensor 16 installed on the hot water pipeline 12 and a heat consumption controller 17 for heating with sensors 18, mounted on the supply pipe 1 of the heating network in front of the heater 9 of the heating system.

The device operates as follows.

During the period of average water draw-off in the hot water supply system and with the valve of the heat release regulator 17 fully open, the heat carrier moves along two parallel flows. The first stream is through the supply pipe 5 through the heat flow regulator 13 and the hot water heater of the upper stage 3. The second stream is through the pipe with a throttle diaphragm 10.

The amount of water in each stream varies in proportion to the actual average water withdrawal. Next, the heating water, combining into one common stream, through the supply pipe 1 through the heat flow controller for heating 17 enters the heating heater 9, then through the return pipe 2 and pipe 7 after the return valve to the hot water heater of the lower stage 4, from where the pipeline 8 returns to the return pipe of the heating network 2.

With an increase in the water intake, when the flow rate of the supply water at the inlet corresponds to the flow rate during operation according to the mixed scheme, the water from the supply pipe of the heating network 1 follows only the path of the first flow and at the outlet of the heater 3 of the upper stage branches into two new flows: with a constant limited flow in series through the supply pipe 1 through the heat release controller 17 to the heating heater 9 and parallel to the heating system with variable flow through the jumper 11 through an additionally installed eratury 15 to cover the increased flow of heated water, which allows to regulate the heat flow in all modes. Next, in the mixture of the return network water after the non-return valve and the temperature controller 15, through the mixed water pipe 7 it enters the hot water heater of the lower stage 4, and then into the return pipe of the heating network 2.

In the transition period, when the regulator of heat supply for heating 17 reduces the flow of heat carrier and it is not enough to heat the water in the hot water supply system, the temperature controller 15 automatically switches the device to work according to the combined scheme.

Tap water for the needs of hot water supply is preheated in the lower stage heater, then mixed with the circulation water of the local system it enters the upper stage hot water heater, where it is brought to the design temperature.

Claims (1)

Claim Heat substation of the heat supply system containing supply and return pipelines of the heating network, water heaters of the upper and lower stages, pipelines for supplying and discharging coolant from the heating network to the water heaters of the upper and lower stages, the heater of the heating system and the diaphragm installed on the supply pipe of the heat network, a jumper connecting water heaters of the upper and lower stages, hot water supply pipe connected to the water heaters of the upper and lower stages, heat flow regulator for hot water supply with a temperature sensor installed on the heat carrier supply pipe to the water heater of the upper stage, an additional heat consumption regulator for hot water supply with a temperature sensor installed on the hot water supply pipeline, characterized in that, in order to save heat, the heat point is equipped with a flow regulator heat for heating with sensors installed on the flow pipe of the heating network in front of the heater of the heating system; The water heater from the upper stage is connected to the heat supply network supply pipe, and the additional heat consumption regulator for hot water supply is installed on the bridge between the water heaters of the upper and lower stages.