SU30154A1 - Device for automatic feeding steam boilers - Google Patents

Description

The invention relates to devices for the automatic feeding of steam BOILERS using a tank, from which water is supplied to the boiler under the pressure of a compressed medium introduced into the tank when it reaches a certain water level and is removed from it at the lowest permissible level.

In the proposed device, inside the tank, a box is opened on top, filled with water when the tank is filled and equipped with a pipe that does not reach the bottom with a float gliding over it. At the lower end, provided with windows, a spring-loaded spool is placed in the pipe, which is lowered under the action of the weight of the float sliding along the pipe when the water level in the tank falls. A float is placed in the box, which, when fed to the boiler due to the closed pipe, is at a constant level corresponding to a certain level in the tank; when opening the VALVE

the windows of the pipe from the water and the box are released into the tank, and the float in the core :: ebka lowers and controls the zolotniki opening the pipe to communicate the tank with the atmosphere during its filling with water, and then the pipe for supplying the compressed medium to the tank.

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The drawing shows a vertical section of the device for the automatic feeding of steam boilers.

The device for automatic feeding of water by steam boilers consists of a closed, equipped with two check valves J3 and J4 tank 75, inside of which is placed the box 6 with windows 7 open on top and the pipe / not reaching the bottom of the tank and having windows 2 at the bottom that are overlapped inside the pipes with the valve 3 under the influence of the elastic force of the spring 4. Outside, the pipe 7 slides a float 5. Inside the box 6 is placed a float 8 connected with a hollow brush 9 with a piston valve JO; The stem has windows 7 /, and the spool has an axial channel 72. The stem windows and the spool channel make the spool system balanced with respect to the elastic medium.

With an empty tank (5) and a pipe (7), the float (5) is in the lower position, the garden sits on the crosspiece of the spool 5, with its weight compresses the spring 4 and lowers the spool 3, due to which the windows 2 open; the upper float 8 is in the lower position and installs the JO JO GOLDENER in such a way that the inside of the tank is connected

with the outside atmosphere using a pipe 16. Water opens the check valve 13 and begins to flow by gravity into the tank, gradually filling it. As the tank is filled, the float 5 floats up, releases the spring 4, which by force of its elasticity moves the valve 3 and closes the windows 2, due to which water from the bottom cannot penetrate into the tube /. The water in the tank / continues to rise, comes to the windows at the top of the box E, through which it fills the inside of the pipe / AND the box, thanks to which the upper float 8 begins to float, raising the piston valve 10.

When the top float 8 reaches its upper half span, the piston valve 10 will close the openings so that it separates the message of the inside of the tank with the outside air and opens access to the inside of the tank / elastic medium (compressed air, steam) through the pipe 17. Under the influence of the elastic force water is displaced from the tank for feeding the boiler, opening the check valve 14 and closing the check valve 13. The liquid level in the tank decreases, but in the pipe / and box 6 remains in place and the float 8 remains At a constant level.

As the water level in the tank decreases / the lower float 5 descends, until it reaches the bottom of the spool 3, then it will compress

with its weight the spring 4 and, by moving the valve 3 down, thereby opening the windows 2, through which the water from the pipes-s / will flow out; the float 5c will, by virtue of its weight, move the spool 10 to the lower position / where the access to the elastic medium in the tank is stopped, and the inside of the tank is connected to the atmosphere by means of pipe 16, where the elastic medium goes. At this time, the tank / starts to automatically fill with water and the cycle repeats.

The subject of the patent.

A device for automatically feeding steam boilers using a tank from which water is supplied to the boiler under the pressure of a compressed medium introduced into the tank when it reaches a certain level of water and is removed from it at the lowest permissible level, characterized in that in order to keep the float 8 at a constant level, when feeding the boiler with water, the float is enclosed in a valuable box inside and open at the top of the box 6, fitted with a pipe that does not reach the bottom of the tank / with a spring-loaded slide valve 5, at 1: end, intended nym under the action of the weight of the sliding tube 5 of the float to open the window 2, for the purpose of discharging water out of the box 6 when falling water level in the tank.