CS247608B1 - Apparatus for acoustic signaling of maximum level when filling tanks - Google Patents

Abstract

Device for acoustic signaling of the maximum level when filling tanks. The rising level in the tank /4/ raises the float /2/, opens the valve /1/ and causes gas to leak from the tank /4/ through the whistle /3/, which starts to emit an acoustic tone.

Description

BACKGROUND OF THE INVENTION The present invention relates to a device for acoustic signaling of a maximum level when filling tanks, e.g.

When filling the tanks, the tank may be overfilled and its contents leaked due to the inattention of the operator. In many cases it is advisable to fill the tanks only partially.

There are a number of ways of signaling the achievement of a maximum level, based in particular on the float principle, whereby, for example, electrical contacts are switched by the float. The disadvantage of these devices is the considerable complexity and dependence on the power source. In addition, in many cases the use of an electrical power supply is not best suited for storing easily explosive liquids.

These drawbacks are substantially mitigated by the use of a maximum level acoustic signaling device when filling tanks, for example liquid fuels, in that a float-actuated closure is formed in the tank, behind which a whistle is inserted into the escape gas space.

The device may also be configured so that the float is formed on the whistle or that the closure is formed in the whistle.

The float can advantageously be placed in a tube provided with openings, the float being connected to the whistle rod, or the pipe with the closure, whistle, rod and float is inserted into the tank specific shaft. -and

The advantage of the device according to the invention is its mechanical simplicity compared to other systems and does not require any special power source to function. The device is easy to manufacture. They can be made portable and used for several identical tanks.

The device according to the invention is shown schematically in Figures 1 to 4 in various embodiments.

The maximum level acoustic signaling device of Fig. 1 was used to signal the maximum filling of the tank. The tank 4 is provided with a breather 17 with a flame arrester 2 and a measuring shaft 6.

A tube 1 having holes 9 is inserted into the measuring shaft 6 and a closure is formed at its upper end. A whistle 2 connected by a rod 10 to the float 21 is slidably inserted into the closure.

When filling the tank, the gas escapes above the rising liquid level by venting 2 through the flame arrester 2. When the liquid level raises the float 2, this movement of the rods 10 is transferred to the whistle 3, the whistle 2 is moved to the top position.

Gas above the liquid level penetrates the openings 2 ^{in the} tube 2 ^and escapes through the whistle 2 into the atmosphere. This will begin to sound a beep to alert the operator that the maximum fill level has been reached.

After the filling has been completed, the closure 2 ^{with the} pipe 2 ^{and the} float 2 can be removed as a whole and the measuring shaft 2 can be closed with a closure not shown in FIG.

Fig. 2 shows another constructional variant of the device for signaling the maximum level when filling the tanks in the rest position.

In the tank 2, a dome 11 is provided with a lid 12 on which a vent 7 with a flame arrester 2 is flange-mounted. A tube ^x 2 is also flange-mounted with a cap 2 at its upper end. 10 with float ¹ '· 2_ tube is apertured £. In the rest position, a sealing screw 13 with an eyelet 14 is screwed into the closure 2 ^{on the} d 'pipe 2.

Before filling the tank, the sealing screw 13 with the eye 14 is unscrewed. When filling the tank 4, the gas escapes by bleeding 'T' through the flame arrester 5. Once the rising level raises the float 2, this movement of rods 10 is transferred to whistle 3 and The holes 9 of the pipe 2 begin to enter the gas into the whistle 2, which begins to emit a tone.

In the tank 4 of FIG. 3 is fixedly positioned whistle 2 »in which the cap 2 is formed by rods 10 connected to a float float 2 · 2 is placed in the tube slots 2 ³ 2 ·

In the rest position, the whistle 2 is covered by a cover 17.

Before filling the tank £ remove overcap 22 · Increasing the level in tank 2 during filling causes lifting of the float 2 / by means of which the rod 10 opens the shutter 2 starts to enter the openings 2 gas into the tube 2 ^'and from there through the closure the two pipes 3, which starts emit a tone.

In the tank 4 according to FIG. 4, a closure 1 is formed into which a whistle 2 provided with openings 2 ^{and a} float 2 is slidably inserted.

In the rest position through a flute 2 is pushed onto the end cover 22 · ^p efore filling tank removed overcap '17 · Increasing the level in the tank 4 towards Raise the whistle 2 ³ float 2 and through openings 9 begins to tibia 2 gas to escape from the tank 4, . The whistle begins to sound a tone.

Claims (5)

SUBJECT OF THE INVENTION A device for acoustic signaling of a maximum level when filling tanks, characterized in that the shutter (1) in the tank (4) is operated by a float (2), behind which a whistle (3) is inserted into the escaping gas stream. 2. Device according to claim 1, characterized in that the float (2) is provided on the pipe (3). Device according to claim 1, characterized in that the closure (1) is formed in the pipe (3). Device according to one of Claims 1 to 3, characterized in that the float (2) is arranged in a tube (8) provided with openings (9), the float (2) being connected to the whistle (3) of the rod (10). Device according to one of Claims 1 to 4, characterized in that the tube (8) with the closure (1) of the whistle (3) of the rod (10) and the float (2) is inserted into the measuring well (6) of the tank (4).