SU1174681A1 - System of building hot water supply - Google Patents

Abstract

The HOT WATER SUPPLY SYSTEM of the BUILDING contains a supply pipeline, water heaters of the first and second stages connected by a pipeline with a circulation booster pump installed on it, and a circulation pipeline, characterized in that, in order to prevent pressure buildup in the circulation pipeline, it is equipped a pressure regulator installed in the pipeline connecting the water heaters of the first and second stages prior to connecting the circulation pipe to it, and the bypass pipe with ratny.m valve connected parallel to the pipeline connecting yuschemu water heaters, water heater between the first stage and a pressure regulator and between the booster pump and vodonagre & second stage.

Description

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FIELD OF THE INVENTION The invention relates to sanitary equipment of buildings, namely, to hot water supply systems for buildings.

The purpose of the invention is to prevent an increase in pressure in the circulation conduit.

The drawing shows a schematic diagram of a hot water supply system for buildings.

The system contains a cold water supply pipe 1, the first 2 and second 3 stages of a water heater, a hot water pipe 4 connecting the water heater stages, a circulation and booster pump 5, a hot water pipe 6, a circulation pipe 7, a pressure regulator 8, a bypass line 9, a check valve 10 and a pulse pipe line 11 of a pressure regulator 8 connected to a circulation line 7.

The system of hot water supply of buildings works as follows.

The water through the pipeline 1 is fed to the heating in the first stage 2 of the water heater, from it through the pipeline 4 to the second stage 3 of the water heater and then to the inlet pipeline 6 of hot water. The cooling water from the hot water supply system through pipelines 7 and 4 under the action of the circulatory booster pump 5 is fed to reheat the second stage 3 of the water heater.

If the water pressure in the pipe 4 is kept high, then in the circulation pipe 7 the water pressure becomes greater than the set pressure. In this case, the impulse piping 11 transmits a signal to the pressure regulator 8, which throttles the pressure in the pipe 4 after itself until the pressure in the pipe 7 becomes equal to the predetermined one. At the same time, part of the water enters the water intake through the bypass pipe 9, and some through the pipe 4. When the water pressure in the pipe 4 decreases, the pressure regulator 8 opens more and the lower the pressure of the water in the pipe 7 decreases.

Thus, the pressure regulator 8 automatically transfers pump 5 from the

0 purely circulating to the circulating-step-up mode depending on the pressure of the water in the pipeline to the pressure regulator 8. At low pressure, the pump 5 operates as a circulation-enhancer one, and the check valve 10 on the pipeline 9 is closed.

Claims (1)

BUILDING HOT WATER SUPPLY SYSTEM, containing a supply pipe, first and second stage water heaters, connected by a pipe with a circulation booster pump installed on it, and a circulation pipe, characterized in that, in order to prevent an increase in pressure in the circulation pipe, it is equipped with a pressure regulator installed on the pipeline connecting the water heaters of the first and second stages until the circulation pipe is connected to it, and the bypass pipe with the return valve connected parallel to the pipeline connecting the heaters, between the cylinder and the first stage pressure regulator and between the booster pump and the heater of the second stage.