DE1069807B - Gas safety device for gas firing of steam generators and industrial furnaces - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

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PATENT OFFICE- ⁵ * "

EXPLAINING EDITORIAL 1069 807 INHELDETFig

G10204 Ia / 24c

NOVEMBER 12, 1952

BKKANNTMACHÜNG OEKANMELDDNG AND ISSUE OF THE EXPLAINED NOVEMBER 26, 1959

The invention relates to a gas safety device for gas firing of steam generators and industrial ovens, in particular coking ovens from one arranged in the gas supply line, which closes quickly when a drop lever is triggered Liquid separation seal and a direction of flow behind it in the gas supply line Opening steam supply line with a shut-off device, which is also opened by the released drop lever

In such gas shut-off devices, it is known after closing the gas shut-off element in the part of the gas supply line located behind it to blow steam to the burners to prevent the formation of an explosive gas-air mixture in the To prevent feed line

The invention relates more particularly to such Liquid separation closures, where in one with Separating liquid, ζ B water, filled housing cylindrical rotary valve is rotatably mounted on pin, which is with a through a cutout of its Cylinder wall formed Dui chtrittsoffnung over an outlet opening of the protruding into the housing Gas supply shifts

In the case of separating closures of this type, it is in the open position of the rotary valve, the drop lever wedged onto one of the two pivot pins by a pawl recorded, which can be triggered by a membrane-controlled drop weight, with the after Levers falling below the liquid separator fuhit

The invention aims at a further embodiment and improvement of these separating closures and essentially consists of the vapor shut-off valve held by a closing spring m the closed position whose spring force is caused by the drop! is overcome at the end of its fall, and that dei Drop lever in the end position of its drop path through a Notch and a resilient locking lever is locked

This embodiment according to the invention is not nui very simple and reliable, but also has the advantage that the opening of the steam line is always in the The moment takes place in which the drop lever has effectively caused the liquid stiffener

Another advantage of the invention is that by connecting the discharge valve with the Closing spring the living energy of the drop lever by overcoming the closing pressure of the spring so far is consumed that the skin lever reaches the end position without a hard blow and that by the lock a springing back of the drop lever and thus a Fluttering of the steam valve is prevented

The object of the invention is in the drawing shown for example, which one according to the gas safety device

for gas firing of steam generators

and industrial furnace

Applicant:

Gako
Ges. For gas and pulverized coal combustion

m bH,
Essen, Werdener Str 1

Dipl -Ing August Justus, Dusseldorf,
has been named as the inventor

discovery designed liquid separator in shows a plan view of the front face

In the drawing, 1 is essentially the z \ hndrische Housing of a liquid separation seal referred to, which is trimmed on the base 2

The gas enters through the nozzle 3 111 in the horizontal direction, while the gas is at its highest

Place of the housing 1 exits vertically upwards through the nozzle 4 again to the not shown To be fed to burners of a gas furnace

Inside the housing 1, which is filled with water is, there is a cylindrical slide, dei on after

externally guided pivot pin is rotatably mounted. In the drawing, only the pivot pin 5 mounted on the front face is visible, on which the drop lever 6 is tilted or otherwise attached
Tn the open position of the liquid separation closure

the drop lever 6 is provided with a detent8 Toggle lever 7 held in position, which is articulated to a rod 9 at its opposite end is that from below with a membrane-controlled The falling weight in a known manner.

th housing 10 protrudes

If there is no gas, i.e. if the gas is impermissible Pressure drop of the gas before the liquid stop wnd a falling weight is triggered by a membrane, which when dropped onto the

The head of the rod 9 hits, whereby the toggle lever 7 such pivoted and the drop lever 6 releases

This now moves in due to its weight Left turn down to the dash-dotted line Position, m of a notch bar attached to it

909 650/224

Claims (2)

11 with detent 12 with one under the action of the spring 13 standing pivot lever 14 comes into engagement and so the drop lever 6 and thus the slide in the housing 1 blocked At the end of its fall, it comes over the Pivot 5 extended end 15 of the drop lever 6 groove a one-armed in its path, pivotable about pin 16 lever 17 m contact and pivoted this in the direction of the arrow to the left against the action of a spring 18 The lever 17 is in the point 19 at the end of the valve spindle 20 of the steam shut-off valve 21 attached so that when the lever 17 is moved to the left, the steam valve 21 is opened the line 22 coming from any existing steam source is now via valve 21 and Line 23 above the highest water level of the liquid separation seal prints and drives the gas contained in the gas supply line into the combustion chamber, so that the gas supply line is explosion-free will PATENTS S P K Γ CHE 1 Safety device for gas-fired steam generators and industrial furnaces, in particular Coking furnace, consisting of one in the gas supply line arranged when a drop lever is triggered. fast closing liquid separator and one downstream of the same in the gas supply line opening steam supply line with a Shut-off device, which is also opened by the released drop lever, characterized in that that the steam shut-off valve (21) is held in the Yerschlußstelhing by a closing spring (18), whose spring force is overcome by the drop lever (6) at the end of its drop path, and that the drop lever (6) in the end position of its drop path by a detent (11) and a resilient Speir lever (13,14) is locked 2 sickle is called device according to claim 1, characterized characterized in that the drop lever (6) is extended beyond its pivot pin (5) and the extension (15) with a one-armed the spring-loaded spindle of the steam valve (21) engaging lever (17) cooperates Documents considered
German patents Nos. 297 356, 529 145 1 sheet of drawings