SYSTEM OF AUTONOMOUS HEATING AND HOT WATER SUPPLY WITH NATURAL CIRCULATION OF HEAT CARRIER (VERSIONS) AND METHOD OF WATER HEATING Russian patent published in 2009 - IPC F24D3/10 

FIELD: heating.

SUBSTANCE: inventions refer to water systems of heating and can be implemented in autonomous systems of heating and hot water supply. The system of autonomous heating and hot water supply with natural circulation of heat carrier coupled with hot water supply consists of a heat generator, of an extension tank, which is also used as capacitive heater, of a tank-accumulator of hot water with float valve for automatic maintaining water level in the tank and with a control overflow branch, of a main stand pipe connecting the upper point of the water jacket of the heat generator with the extension tank, of a supplying heat pipeline connecting lower part of side walls of the extension tank with stand pipes of heat supply and stand pipes of hot water supply, of heating devices connected to the stand pipes of heat supply, of shower sprinklers and hot taps connected with the stand pipes of hot water supply, and of stand pipes of heat supply and stand pipes of hot water supply connected in lower points with a reverse heat pipeline, which is connected to the lower point of the water jacket of the heat generator and which creates an integrated circuit of heat carrier circulation; also the extension tank-heat accumulator is made in form a vertically assembled cylinder and is equipped with a branch of tangential supply of cold water installed in the upper part of the tank and with a branch for discharge of hot water installed in the lower part of the tank; supplying and reverse heat pipelines are made in form of rectangular loops and are connected correspondingly with the extension tank-heat accumulator and with the heat generator in geometrical centres of rectangular loops via T-shaped heat pipelines; each stand pipe of hot water supply is connected with the supplying heat pipeline of upper pipe layout through an intermediary tank-heat accumulator, the bottom of which is located above the supplying heat pipeline for not less, than 100 mm; a sensor of automatic maintaining of preset temperature of hot water supplied for needs of heating and hot water supply is installed at the outlet from the extension tank; a circulating pump is assembled at the inlet of heat carrier into the heat generator; a steam-water heating boiler with multiplicity of circulation from 50 to 500 is used as a heat generator; the heat generator can be equipped with a burner without forced feed of air; room-after-room thermo-regulators of air temperature are assembled on heating devices; the system consists of the re-circulating heat pipeline connecting the extension tank with the T-shaped reverse heat pipeline at the inlet of heat carrier into the heat generator at the region of the inlet branch of the circulating pump, of a circulation ejector coupled into a block with the circulating pump, of a temperature regulator of heat carrier at the inlet into the heat generator, of a temperature regulator of heat carrier at the outlet from the heat generator maintaining maximum allowed and constant temperature during the whole period of heating system, and of the main stand pipe made vertical and communicating with atmosphere, while the level of its utmost upper point corresponds to the level of the upper point of side walls of the extension tank; the main stand pipe is connected to the extension tank with the branch at the level of lower point of side walls of the extension tank; the branch connecting the main stand pipe with the extension tank and the branch connecting the extension tank with the heat supply pipeline is connected each inside the extension tank with a steeply to 90° bent tap; both taps are placed in one horizontal plane; the outlet from the first tap downstream heat carrier is directed to the inlet into the second tap along a short arc of circumference; the supplying heat pipeline of the upper pipe layout contains de-aerating vents, the level of the upper point of which corresponds to the level of the upper point of the side walls of the extension tank; the heat generator contains a reserve fan-less burner with a manual valve for control over burning process; the stand pipes of heating are made according to two-pipe installation circuit; heating surfaces of the heat generator made out of corrosion resistant steel contain a device for heating a floor. The main stand pipe, the extension tank-heat accumulator, the intermediary tank-heat accumulator and a de-aerating column have the geodetic level of the utmost upper point not less, than 1 metre above the required level of heat carrier, height of column of which facilitates hydro-static pressure in the supplying heat pipeline corresponding to boiling temperature equal to maximum allowed temperature of heat carrier for given building within the range of 95-150°C. Also here are disclosed versions of the system of autonomous heating and hot water supply and the method of water heating in the system of autonomous heating and hot water supply with natural circulation of heat carrier.

EFFECT: facilitating temperature rise of heat carrier to ultimate allowable value for given building, rise of driving pressure of natural circulation of heat carrier, reduced metal consumption of system of autonomous heating, and facilitating operation of system of autonomous heating under conditions of emergency shutdown of electric power supply.

10 cl, 1 tbl, 5 dwg