SU1211503A1 - Steam-water shell-type boiler - Google Patents

Description

The invention relates to the field of energy and can be used in fire tube boilers for generating saturated steam and heating water.

The aim of the invention is to increase the efficiency by providing the opportunity to work in a hot-water or steam-hot-water mode.

The drawing shows the proposed steam-tube fire tube.

The boiler contains a burner device 1, a flame tube 2 and smoke tubes 3 with screw inserts 4, front and rear swivel chambers 5 and 6, the last of which is formed by a double-wall elliptical bottom 7, and pipes 8 and 9 of the water inlet and outlet. The boiler is additionally equipped with a drum separator 10 with a capacitor 11 installed in it as a serpentine. The drum separator 10 is connected by lifting 12 and lowering 13 pipes with a cavity 14 between the walls of the bottom 7 with the formation of a natural hirculation circuit while the drum separator 10 and the condenser 11, connecting pipes 15-17 are installed with gate valves 18-20 water, respectively, to the outlet 9 of the outlet and the nozzles 8 and 9 of the supply and removal of the latter. The drum separator 10 has nozzles 21 and 22 for the supply of water and steam with valves 23 and 24.

Screw inserts. 4 can be installed on the part of the length of the smoke tubes 3, the free end has a length of from 15 to 25 diameters of the latter.

In addition, the natural circulation pin is connected to the water cavity 25 by a pipe 26 with a valve 27. The underwater water is supplied through the pipe 28, and the flue gases exit through the pipe 29.

Steam fire tube boiler works as follows.

In the mode of simultaneous heating of water and the generation of steam, the valves 27, 18, 19 and 2 are closed, and the valves 24 and 23 are open. In the burner 1 serves fuel

Editor L. Veselovska Order 627/42

Compiled by N. Bel Kova

Techred. A..Babinets .Korrektor, A. Zimokosov

Circulation 399Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, 4/5 Rautskisk nab.

Branch 1TPP Patent, Uzhgorod, st. Project, 4

an airless mixture that burns in the flame tube 2. The resulting flue gases successively pass through the flame tube 2, the rear turning chamber 6, the smoke tubes 3, releasing heat to the water in cavity 25 and 14, and, after cooling, leave the boiler through pipe 29. Water is heated in the cavity 25, from where it is discharged to the consumer through pipe 9.

At the same time, the feed water flows through the nozzle 21 into the separator drum 10, from it through the discharge pipes 12 into the cavity 14 of the bottom 7, where it is heated. Forming a steam pipe to the mixture through the lifting pipes 13 enters the drum separator. 10, where the vapor is separated from the water, which is discharged to the consumer through the port 22. The circulation process can be repeated many times.

 In the hot-water mode, the valves 27, 18, 19 and 20 are open, and the valves 24 and 23 are closed. The water passing through the steam condenser 11 condenses the saturated steam remaining in the separator drum 10

prevents the occurrence of hydraulic shocks in the circuit. From the steam condenser 11, the water through the pipeline 17 enters the pipe 9 and then to the consumer. Through the conduit 26, a portion of the water from the cavity 25 enters the cavity 14 of the bottom 7, is heated and through the conduit 15 enters the nozzle 9, and then to the consumer.

Screw inserts 4 contribute to an increase in the intensity of heat transfer and a more complete utilization of the heat of the exhaust gases. Placing the inserts 4 on parts of the length of the flue pipes 3 has a beneficial effect on reducing the amount of sticky deposits and, accordingly, reduces the aerodynamic resistance.

The use of the proposed boiler will make it possible to abandon the need to use steam for its own needs from an outside source, to organize the optimal operating modes of the boiler and to increase the efficiency of the operation of the fire tubes.

Claims (2)

1. A WATER-FIRED BOILER BOILER containing a burner, fire and smoke tubes with screw inserts, front and rear pivoting chambers, the latter of which is formed by a double-walled elliptical bottom, and water supply and drain pipes, which are connected with In order to increase efficiency by providing the possibility of working in the water-heating or steam-heating modes, the boiler is additionally equipped with a drum-separator with a steam condenser installed in it in the form of a coil connected by lifting and lowering pipes mi with a cavity between the walls of the bottom with the formation of a natural circulation circuit, while the drum-separator and the coil connecting pipes with valves installed on them are connected through the water respectively to the branch pipe and the inlet and outlet pipes of the latter, and the drum-separator has water pipes water and steam outlet with valves. „2. Boiler pop. 1, characterized in that the screw inserts are mounted on part of the length of the smoke tubes, the free end has a length of 15 to 25 diameters of the latter.