DE513109C - Gate valve for gas firing, in particular for wind heaters - Google Patents

Description

Shut-off valve for gas firing, especially for Vin blasters for larger quantities of cooking gas. Burn blast furnace gas tisw, zti. In the Redie heni * lti (te Brennluftnien.-e (put natural draft of the comb, but by a fan of the fireplace. Either an ordinary fan, a screw fan, a projector fan or some other well-known type) serves as the fan .

With such firings. for example in steel mill furnaces, blast furnaces for f-Ioch-Jfen. that are periodically in operation, it is necessary. there]., (The operator slept the throttle valve and then (read air blower Turn off especially nnil.l. This is very disadvantageous because during the "/ since 7wipe." i the closing of the Gassklücüers and then turning off the 'engine cold air in the The combustion chamber promoted tiiid thereby caused an unavoidable cooling will.

I_s are already so @; named safety devices for blast furnaces become helcanned. where depending on the gas pressure by means of a stop electrical current for the fan motor is influenced. Such facilities, which only come into effect when there is a lack of gas, but cannot be used Elimination (leg to be used as disadvantage indicated above.

With the present invention, on the other hand, it has become possible. to eliminate the disadvantages mentioned. namely by the fact that a stop. who, in a manner known per se, de-; Blower motor closing and opening switch operated, is attached to the operating rod of the gate valve. As a result, the fan is automatically started or stopped whenever the operator opens and closes the gate valve. In contrast to the previous operating mode, special starting or stopping of the combustion air engine by the operator is not necessary.

In this connection, the invention relates to one embodiment shown. lii (place combustion chamber a should through the], eitun'- h and through the gate valve c the influx of lead gas. The associated combustion air is generated by the fan (l and through the 1, 'rennluftleiiung e also introduced into (leg combustion chamber u. The Gate valve c receives fine stop piece g on its operating rod. which when closing or opening the @chielierplatte h an Iiebel switch i is actuated.

The lever switch interrupts or closes (put circuit k of the motor 1. which is used to drive the fan d, and indeed the circuit is set up in such a way. leg puts motor 1 out of operation. If i) open the slide plate h, the 1-light switch i closes the circuit 1, #, thus sets (leg motor 1 in operation.

In principle it is irrelevant whether semiif3 the arrangement shown the 13r (#nn) tift is fed into the furnace separately from the gas or whether a joint access of gas and combustion air in the form of a burner is selected. The switch can also be connected to your combustion air cabinet. if one is built into the line e.

Should instead of the spindle actuation (put the gate valve a other furnishing. For example, if a quick-release key is present, it can Lever switch can also be connected to (bad operating lever.

Claims (1)

PATENT CLAIM: Gate valve for gas firing, especially for Wind heater with automatic switching on and off of the fan for the combustion air. characterized in that a stop (g), which in a known manner a actuates the circuit of the fan motor closing and opening switch (i), is attached to the blocking valve (c) of the operating rod. (1) of the A