SU39120A1 - Apparatus for controlling gas suction to a gas main - Google Patents

Description

The present invention is intended to control the intake of gas emitted from Schwarz-type furnaces into the gas main, in which the charred wood is heated directly by the combustion products of the fuel.

The drawing shows a schematic vertical section of the proposed device.

According to the invention, in the proposed device, an adjustable cone valve 5 is placed in the pipe 2, which connects one hundred fps to the main line 3. To explain the effect of the proposed device, below is a description of the process of regulating gas suction in the gas line. ,

Vaporous and gaseous products obtained during dry distillation of wood in Schwartz type furnaces come from the sinks / into the connecting pipes 2 with elasticity slightly higher than the elasticity of the ambient outside air, thereby eliminating the possibility of the latter being sucked together with gases into the main pipe 5 through possible gaps between tube walls and conical valve handles 7. From connecting pipes 2, gases are vented to a common gas line 3. Controlling the intake of products into the main pipe 3 is done by m

(96)

changing the gap area between the conical valve 5 and its seat 6 located in the connecting pipe 2. When the conical valve moves, the axis of the latter coincides with the axis of the pipe due to the presence of a finger 4 with which the valve abuts against the walls of the wide part of the connecting pipe. The wood conical valve is given such a taper, so that the latter, when it swells, can slide out of the saddle by an appropriate amount without destroying it. At the time of withdrawal of products from the vertical pipe into the connecting vertical pipe, the special valve 8 is locked from above, by means of which it can be controlled during drying of the firewood. To monitor the degree of adjustment of gas suction in a vertical pipe, four control holes 9 are arranged on four sides, three of which are closed with corresponding plugs, and one (depending on the direction of the wind) is opened. Through this hole, the gases exit in a thin stream, according to which it is possible to judge whether the cone valve is open enough. Tubes can be inserted into these openings (slightly enlarged), the ends of which (1–3 mm in diameter are bent upwards and surrounded by glass tubes. In this case, the gas evolving along one of

tubes can be lit. By the length of the flame, it is possible to judge the elasticity of the gas, and by color the course of the charring reaction. Such a flame is convenient for supervising the process at night.

In the first period of the process, when only wood is dried, valve 5 is open and valve 5 is closed. After sufficiently drying the wood, a stronger heat is raised to decompose the wood, and then the valve 8 is closed, and the valve 5 is opened.

At the end of the wood decomposition process, valve 5 closes and valve S opens. In the event of a possible sticking of the valve handle to the gland, the seal is removed from the gland. The valve is pressed to the seat with a spring, or its handle is resiliently attached so that the valve cannot accidentally open. The cooling furnace is closed in the usual manner.

The subject matter of the invention.

A device for regulating the suction of gas released from furnaces of the Schwarz type into the gas main, characterized in that an adjustable conical valve 5 is placed in the nozzle 2 connecting one hundred to seven with the main 3.