SU1740891A2 - Heat consumer inlet - Google Patents

Abstract

The invention relates to a power system and is intended for use in district heating systems for residential, public and industrial buildings. The purpose of the invention is to increase efficiency by more fully utilizing the heat of the heating water. To do this, in the subscriber input with the supply and return pipelines of heat supply and the first and second stages of hot water heaters connected to the system, the heat supply feed pipe is additionally connected to the second stage of the heater from the side of the hot water pipeline. Due to this, the mixing of both heat treatment waters occurs directly in the heater itself, which contributes to a more complete utilization of their heat. 1 il.

Description

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The invention relates to a power system, is intended for use in district heating systems of residential, public and industrial buildings and is an improvement of the invention according to the author. St. No. 1495582.

A subscriber input (AV) is known, containing supply and return heat supply pipes connected to the heating system, cold and hot water pipelines connected to the first and second stages of the hot water supply system, and the inputs of the heating sides of the specified heater stages are connected respectively to the return and the supply pipelines for heat supply, and the input of the heating side of the second stage is additionally connected to the return pipeline by means of a mixing device.

However, the known AB is distinguished by a low efficiency in the use of heat from the heating water.

The purpose of the invention is to increase the efficiency of the use of heat from the heating water in the subscriber input.

This is achieved by the fact that in AV with supply and return heat supply pipes connected to the heating system and to the heaters of the first and second stage hot water supply systems, the heat supply supply pipe is additionally connected to the second stage of the heater from the hot water pipeline side.

The drawing shows a group control point (PGR) and AB.

AV is connected to the GPR pipelines 1, 2, 3 quarterly network.

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The AV includes two preheaters 4 and 5 connected to the hot water supply system 6, an elevator 7, a heating system 8 and a heated towel rail 9 directly connected to the pipeline 1.

The GPR contains a pumping unit, which contains mixing pumps 10 and control valves (RK) 1-4. Pipelines 1, 2, 3 are connected by jumpers 11. The regulator PK4 is connected to the sensor 12 of the outdoor temperature.

AB works as follows.

From the CHP source, the coolant at 150-70 ° C is supplied to the GPR, where the mixing pumps 10 maintain the necessary level of mixing of the heating water. The temperature of the heating water of 70-75 ° C and the flow rate of the coolant to the system 6 of hot water supply are regulated by valves PK1 and 2 depending on the regularities of the load of the system 6. The temperature of the heating water is 150-70 ° C and the flow rate of the heat transfer fluid for the heating system is regulated by the RCZ and 4. Regul Torus PK4 serves as a regulator of the system for automatic regulation of heat supply. In AB, heater 4 is supplied with part of the heating water from pipeline 1, and partly from pipeline 2. Heating water at 70-75 ° C from pipeline 1 is supplied from the entrance to heater 4 of heated water to the system 6 with hot water, and heating water from pipeline 2 is supplied from the outlet side of preheater 4 with heated water supply system 7

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water into system 6. The mixing of both heating water takes place directly in the heater 4 itself, after which the mixture with the water leaves the heater 4, mixes with the water returning from the draining cloth 9 and is fed into the heater 5, from which it enters the pipeline 3 and returns in CHP. Tap water is supplied to heater 5,

heated and supplied to the heater 4, from where it goes to the system 6. In the heated towel rail 9, the heating water at 70-75 ° C is fed directly from the pipeline 1. The pipeline 2 heats the heating water through elevator 7 to the system 8. In case of an accident or repair The piping 1, 2 and 3 are disconnected from each other by jumpers 11 in order to enter the two-pipe system.

Thus, connecting the heat supply pipe 2 to the second stage of the heater 4 from the hot water side of the system 6 makes it possible to increase efficiency by more fully utilizing the heat of the heating water.

Claims (1)

Claims of the invention. Subscriber input by the author. St. No.-1495582, characterized in that, for the purpose of increase efficiency by more fully utilizing the heat of the heat of the water supplying the heat supply pipe is additionally connected to second stage preheater from the hot water pipeline. I