RU2313731C1 - Water heating system - Google Patents

Abstract

FIELD: heating engineering, particularly automatic heating system control.

SUBSTANCE: heating system comprises hot pipe and return pipe, air discharge pipe, water drainage pipe and heating unit system including a number of hydraulically communicated heating units. Each of hot and return pipes is provided with one electric valve and water flow sensor. Air discharge pipe has electric valve. Vessel is installed under discharge pipe so that lower vessel part is communicated with heating system through electric valve and electric pump.

EFFECT: increased reliability and economical efficiency of water heating systems due to system seal failure indication and, if necessary, emergency water discharge from the system.

2 cl, 1 dwg

Description

The invention relates to the field of heat engineering and can be used in automatic control systems for heating systems.

Known water heating system [1, 2], consisting of hot and return pipes, air discharge pipes and water drain pipes, a set of heating devices that are hydraulically interconnected and form a structure consistent with the tasks for which the system is intended.

However, such a system has the disadvantage that in case of depressurization of the system, a lot of time passes from the moment of detection of a leak to the discharge of water from the system and the beginning of the system. This circumstance is directly related to the size of the damage caused to the premises as a result of the ingress of water into them and losses of coolant.

The invention solves the problem of improving the reliability and economic efficiency of water heating systems by warning about the depressurization of the system and, if necessary, the emergency discharge of water from the system in automatic mode.

This is achieved by the fact that in a water heating system consisting of hot and return pipes, an air discharge pipe and a water drain pipe, a set of heating devices hydraulically connected to each other, unlike the prototype, one electric valve and a flow sensor are installed on the hot and return pipes water, and on the air discharge and water drain pipes one electric valve is installed, and under the water drain pipe there is a container, the lower part of which is hydraulically connected to the heating system via an electric valve and an electric pump In addition, the heating system includes a siren and an electronic unit, the input of which is connected to water flow sensors, and the output - with electrovalves, an electric pump, and a siren.

The invention is illustrated in the drawing, which shows a diagram of a water heating system.

The system consists of a set of heating devices 6, hot 10 and return pipe 1, while the hot pipe has an electrovalve 11 and a water flow sensor 12, and on the return there is an electrovalve 2 and a water flow sensor 3. The system is equipped with an air discharge pipe 13 with an electrovalve 14 and a water drain pipe 4 with an electric valve 5. Under the water drain pipe there is a tank 7, the bottom of which is hydraulically connected to a set of heating devices 6 through an electric valve 8 and an electric pump 9. The water flow sensors 3 and 12 are electrically connected to the electronic unit 15, and then in turn, with all solenoid valves 2, 5, 8, 11 and 14, the electric pump 9 and the siren 16.

In operating mode, the solenoid valves 2 and 11 are open, and the solenoid valves 5, 8 and 14 are closed. Hot water through the pipe 10 through the solenoid valve 11 and the water flow sensor 12 enters the complex of heating devices 6, where it cools and leaves this complex through the return pipe 1 through the water flow sensor 3 and the solenoid valve 2. In this case, the water flow through the hot and return pipes are equal to each other, which is recorded by sensors 3 and 12 (adjusted for error of readings).

In case of depressurization of the heating system (water leakage), the readings of the water flow sensors begin to diverge, while the electronic unit 15 responds to this in one of two ways. If the degree of depressurization is small, then the electronic unit 15 includes only the siren 16, if large, it turns on the siren 16 and gives a signal to close the solenoid valves 2 and 11 and to open the solenoid 5, while the water begins to drain from the heating system into the tank 7.

After repair of the heating system in manual mode, the electronic unit 15 sends signals to close the solenoid valve 5, open the solenoid valves 8 and 14 and turn on the electric pump 9. In this case, water is pumped from the tank 7 back to the heating system. Upon completion of manual pumping through the electronic unit, close the solenoid valves 8 and 14 and turn off the electric pump 9. If there was not enough water in the tank to fill the system, you can add the required amount to the tank 7 and repeat the filling operation, or by opening the electric valves 2, 11 and 14, fill the heating system through the hot pipe 10 or return 1.

Upon completion of filling, the heating system is returned to its original operating state.

This water heating system has increased reliability and allows to minimize damage to the premises in case of its depressurization. This technical solution is particularly relevant if it is used as part of automatic gas boiler houses located on the roofs of residential buildings.

Information sources

1. Borshchov D.Ya. The device and operation of heating boilers of low power. Textbook for prof. schools. - M.: Stroyizdat, 1982. - 360 p., Ill.

2. Sosnin Yu.P., E.N. Bukharkin. Heating and hot water supply of an individual house: Ref. Allowance. - M .: Stroyizdat, 1991 .-- 384 p.: Ill.

Claims (2)

1. Water heating system, consisting of hot and return pipes, air discharge pipes, water drain pipes and a set of heating devices that are hydraulically interconnected, characterized in that one electric valve and a water flow sensor are installed on the hot and return pipes, and one electric valve is installed on the air discharge and water drain pipes, and a container is located under the water drain pipe, the lower part of which is hydraulically connected to the heating system through the electric valve and electric pump. 2. The water heating system according to claim 1, characterized in that it includes a siren and an electronic unit, the input of which is connected to water flow sensors, and the output - with electrovalves, an electric pump, and a siren.