SU97040A1 - Device for automatic control of fuel and air supply to boilers of steam boilers - Google Patents

Description

Devices for automatic control of fuel supply and carts. spirit in the furnaces of steam boilers, with the application of steam cylinders, inside of which are placed spring-loaded pistons connected to the levers of the actuators, are known.

Devices of this design and purpose do not provide a sufficient speed of response to changes in the combustion mode in the furnace.

In the proposed arrangement, this disadvantage is eliminated by using a steam generator in the form of a cylindrical radiation microcopper placed directly in a furnace, the vapor space of which is connected to the steam cylinders for controlling the actuators. In addition, a safety cargo valve is installed on the radiation microcool, and water is applied to the jacket to remove heat from the control gears of the shadow control actuators.

The drawing shows a schematically described device.

The device is made in the form of a pipe system that has an independent steam generator - a radiation cylindrical micro-boiler /, which is mounted directly into the roof 2 of the firebox 3 of the steam boiler. Microcooler / with a defined heating surface is filled with water in the required amount. To prevent the explosion of the micro boiler, a safety cargo valve 4 is installed on it.

The steam space of the micro boiler is connected to a steam cylinder 5, inside of which a submersible piston 6 is placed, having a stop 7 hold and a start hook 8 at the end of its rod.

The shutdown hook 7 acts through the lever of the second kind on the button 10 for stopping the fuel supply engine, and the hook 8 - via the lever of the first kind}} on the button 12 of the start.

To remove heat from cylinder 5, water is mounted on it to the jacket 13.

To regulate the flow of air into the air gap M, the steam space of the steam boiler is connected to the steam cylinder 15, the end of the spring rod 16 which is connected to the rotary valve 17.

If for some reason the temperature in the furnace 3 of the steam boiler changes, the intensity of vaporization in the micro boiler and the value of the vapor pressure in the piping system changes. When pistons move in cylinders 5 and 15, the button 10 or button 12 automatically switches and the flap 17 changes its position in one direction or another, depending on the change in the temperature mode in the furnace of the steam boiler.

(By means of an arming device, automatic adjustment of the steam steam bar is also carried out. In this case, the piston rod of the steam cylinder is connected to the levers of the smoke butterfly valve.

Subject invention

Claims (3)

1. A device for automatically controlling the supply of fuel and air to the furnaces of steam boilers using steam cylinders, inside of which are spring-loaded devices connected to the levers of the actuators, in order to increase the speed of the device's response to changes in the combustion mode in the furnace It is equipped with a steam generator in the form of a cylindrical radiation micro-boiler placed directly in the furnace and the steam space connected to the control steam cylinders lny mechanisms. 2. In the device according to claim 1, use of a safety cargo valve mounted on a steam generator — a radiation micro-boiler. 3. In the device according to claim 1, use a water jacket to remove heat from the actuator control cylinders.