SU1551939A1 - Open-circuit system of central heating - Google Patents

Abstract

The invention relates to sanitary-technical equipment of buildings, namely to centralized systems of hot water supply and heating of buildings. The aim of the invention is to simplify the operation of an open system with an elevated temperature graph and variable drainage. The centralized heat supply system is open. It contains the supply and return lines of the heating network, a mixer, temperature and flow controllers, a storage tank, throttling devices, water taps and a heating system. At the same time, the storage tank is made pressure and is connected between the hot water supply pipe and the heating network return line after connecting the mixer to it, the throttling device is located on the return heat network line between the mixer and battery tank connections, and the flow controller is installed on the hot water supply pipe between the mixer and the connection of the storage tank. The proposed circuit for connecting the battery pack and the flow regulator allows the battery tank to work without a special pump and automatic device to turn it on and control the battery tank operation, to ensure that the required amount of heat is supplied to the heating system what water supply. 1 il.

Description

The invention relates to sanitary-technical equipment of buildings, namely to centralized systems of hot water supply and heating of buildings.

The purpose of the invention is to simplify the operation of an open system at an elevated temperature graph and variable water sizing.

The drawing shows an open centralized heat supply system operating according to an increased temperature schedule.

The system includes supplying 1 and 2 return lines of the heat network, a mixer 3 connected to lines 1 and 2 and connected to the supply pipe 4 of hot water supply, temperature controller 5, flow controller 6, water taps 7, storage tank 8 , a throttling device 9, a check valve 10, a heating system 11, and a circulation pipe 12. In this case, the storage tank 8 is pressurized and connected between the supply pipe 4 to the hot water supply (point A) and the heating pipe 2 (point B) after connect Mixing the mixer 3 with it (point B) in the direction of water flow, the throttling device 9 is located on the return line 2 between the connections of the mixer 3 (point B) and the storage tank 8 (point B), and the flow regulator 6 is set to feed pipe

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4 hot water between the mixer A and the connection of the storage tank 8 (point A).

The operation of an open district heating system is carried out as follows.

The heat carrier from the heat source enters the heating supply network 1 of the heating network 11 and into the mixer 3. where water is prepared for the needs of hot water supply by mixing the heat transfer medium from the supply 1 and return 2 heating network heat transfer flow control from the supply flow 1 length pushing hot water into the mixer 3 of the required parameters (55 7 (WT.) is achieved using the temperature controller 5. Hoc ie mixer 3 hot vedus. gae naei to the supply pipe 4 hot water, mouth The flow controller 6, averaged on it, is adjusted to skip the average hourly flow of hot water.

During the period of water withdrawal for hot water supply (water fittings 7 are closed) or when water is less than the average hourly flow (water supply valves 7 are partially open), the pressure at point A on the supply pipe 4 is hotter than the return point B heat network, and hot water nocrvnaer in the tank-al .. l torus 8, displaced from it colder water in the reverse map 2. Similarly, the system can work when taking water for hot water supply only and, return route 2 heat network ( point B) mezhdch both points B and C is set throttling device 9.

When the maximum or minimum water separation is greater than the hourly hourly flow (water; boron taps. Are fully or substantially open), the air supply at point A on the supply pipe becomes smaller than at point B of the return line 2 of the heating network, and an account of the pressure difference between the hot water is displaced from the tank tank with the battery 8 to the supply pipe piping 4, and the supply comes after the regulator (the average hourly flow rate of the heat carrier before being consumed.

Thus, from the heating network to the hot water supply, in all operating modes, only the average hourly flow rate of water is taken, and consumers receive

required variable flow of hot water. The heating system 11 due to the increased temperature schedule in the heat network, calculated with the average hourly load of hot water supply, receives the necessary amount of heat in all modes of operation of the hot water supply system and in heated rooms there is no violation of comfortable conditions. If necessary, the circulation of water in the hot water supply system can be carried out through the circulation pipe 12 (shown in dotted lines) by installing a throttling device 13 on the return line 2 of the heating network.

The invention makes it possible to simplify the operation of the open system by eliminating the pump supplying hot water from the storage tank to the hot water supply system, and a special automatic device controlling the operation of the storage tank and pump.

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Claims (1)

Invention Formula A district heating system was opened, containing a heat supply network and a return line, a mixer connected to these lines and connected to a hot water supply pipeline, flow and temperature controllers, a storage tank, a throttling device, a heating system that differs that, in order to simplify operation at an elevated temperature schedule and a variable water separation, the storage tank is made pressurized and connected between the hot water supply pipe and the tnoj highway 0 heat network after connecting the mixer to it in the course of the water movement, while the throttling device is located on the return line between the mixer and battery-tank connections, and the flow regulator is installed on the supply pipe of hot water between the mixer and the battery-tank connection Torah. 0 five