SU1388656A1 - Boiler plant - Google Patents

Abstract

Invention m. used in installations supplied with low potential heat consumers. The purpose of the invention is to increase the degree of heat utilization of flue gases. For this, the outlet pipe 8 through the heat consumer 9 is additionally connected to the line 2 to feed the boiler 1, and the inlet pipe 7 to the circulation circuit I1 between the water collector 10 and the sprinkler 4. The nozzles 5 of the sprinkler 4 are in the form of ejectors with a tangential inlet irrigating water. Due to such an implementation of the nozzles 5, the gaseous mixture is twisted. The mixture at the contact with the heating surface turbulizes the condensate film on it, which increases the heat transfer and also the heating of water in the outlet pipe. 1 il. with s

Description

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The invention relates to power engineering and can be used in boiler installations equipped with low-potential heat consumers.

The aim of the invention is to increase the degree of heat utilization of flue gases.

The drawing shows a diagram of the boiler plant.

The boiler plant contains a boiler 1 with a supply line 2, in the gas-heater 3 of which are located one above each other, an irrigator 4 with dispensing nozzles 5 and a heating surface 6 with inlet 7 and outlet 8 pipelines connected respectively to a cold water source (not shown) and to the heat consumer 9, the water trap 10 connected with the sprinkler 4 to the circulation loop 11. The output pipe 8 through the heat consumer 9 is connected to the supply line 2 of the boiler I, and the input pipe 7 to the circulation loop 11 between the water collector 10 and irrigator 4, the nozzles 5 of which are made in the form of ejectors with a tangential supply of irrigation water into them. The heat consumer 9 is also connected to the circulation circuit 11 up to the make-up line 2.

Boiler installation works as follows.

The escaping flue gases are moistened in the duct 3 with water supplied through the nozzles 5 of the sprinkler 4. Due to the fact that the nozzles 5 are filled in the form of ejectors with a tangential supply of water, the flue gases drawn through the nozzles 5 are twisted and moistened. At the same time in the nozzles 5 when the gases come into contact with water, it is heated. The heated water supplied from the nozzles 5 irrigates the heating surface 6, on which the water vapor moistened in the gas condenses. Due to the fact that the nozzles 5 twist

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gas mixture, last at the contact (the heating surface 6 turbulizes the condensate film on it, which increases heat transfer, as well as heating the water in the code pipeline 8. The output heat pipeline 8 heats the water to the heat consumer 9, where it gives off its heat, for example to air, going into the furnace of the boiler I. Cooled water on the heating surface 6 is collected in the water collection chamber 10 and re-directed to the irrigator 4. Depending on the operation mode of the boiler installation, the irrigator 4 can be supplied as cold water, flowing of the inlet conduit 7 and water after the heat consumer 9.

The transfer of additional amount of heat to the consumer 9 can be carried out by transferring water from the water trap IO to the outlet pipe 8 of the heating surface 6.

Claims (1)

Invention Formula  A boiler plant containing a boiler with a make-up line, in the gas duct of which are located one above the other, an irrigator with dispensing nozzles, and a heating surface with inlet and outlet pipelines connected to the cold water source and to the heat consumer, and a water trap connected to the sprinkler in a circulator A national circuit, characterized in that, in order to increase the degree of heat utilization of flue gases, the output pipeline through the heat consumer is additionally connected to the boiler feed line, and the input - to the circulation loop between the water trap and the sprinkler, wherein nozzles are formed as the last eductors with tangential supply scrubbing water therein.