DE1886305U - HOT AND BOILING WATER HEATER WITH OVERFLOW PIPE. - Google Patents

Description

RA.702 325 * -2.1163

Dr. Stiebel works

G. m. B. H. & Co 345 Holzminden / Weser

October 31, 1963
GP Dä / Ee «

Hot and water heater with overflow pipe

The innovation concerns hot and water heaters with heated water tanks, closable water inlet and outlet, freely discharging into the atmosphere Overflow pipe and steam-dissipating steam flute »

In such containers, which can be electrically heated from a bottom flange, for example, the steam flute should through when the water is boiled the vapor flowing through it can be brought to the ion. But this is through that additional overflow or steam drainage pipe often made difficult because even the very slight vapor pressures required for this by doubled Steam evacuation - via flute and overflow - are not always guaranteed.

A closing flap was therefore previously provided on the additional steam outlet or the overflow pipe, which - closing this in and of itself and thus producing a sufficiently high pressure for the operation of the flute - opens when a certain steam pressure is exceeded (via spring or weight control) and steam is released through the additional steam outlet. There is a risk of a possible mechanical incapacity of the flap, as can arise from a jamming of the same or a - not unlikely - failure of the spring. A safety overflow of water would then no longer be possible when the tank of the hot water heater was filled above the normal water level provided. With normal function of the flap, on the other hand, there will be a constant change between opening and closing the same (because of the outflow through the steam flute); whereby relatively large amounts of steam and boiling water emerge suddenly from the overflow and thereby scalding for the operator of the device. dangerous form ^·:;

Due to the increase in price, however, in hot water heaters of the type described above A sufficiently high vapor pressure at all times while avoiding structural effort

to operate the steam flute, there is no risk of scalding turned off for the operator and at the same time the decoction larger Amounts of water are prevented. The hot water heater should anyway remain an operationally reliable pressureless device

The innovation is characterized by one on top of the one in the container open end of the overflow pipe loosely attached float is as a tube closed at one end with opposite the outer diameter of the overflow tube larger inside diameter, and breakthrough in the immediate below its forehead closure located section of the pipe jacket, and between this openwork and the closed smooth longitudinal section of the pipe on the pipe jacket outer flange. It is particularly advantageous if the float is made of plastic with a specific weight of about 0.95 g / cm.

The float according to the innovation has the great advantage that it is also in eloquent: existing; Devices can easily be retrofitted The innovation also goes beyond solving the task at hand a leakage of hot water or steam from the overflow pipe, against the Possibilities with all previously known hot water heaters, in normal operation practically completely prevented «The overflow is arranged in such a way that the loose, over its end slipped float with its flange at a certain level Normal water level, or maximum permissible water level, so that only when this level is exceeded by means of its flange, the float from Water is raised and its front closure releases the 'pipe mouth of the overflow, so that the water over the edgeIdurehbrbruch in the float in the Overflow can drain. It is beneficial - to let the swimmer slide down to avoid from the overflow pipe - the float at a length greater than that Distance between the upper end of the overflow pipe and located in the container of the upper wall of the water tank -

The excess steam escapes during normal operation in the newly equipped hot water heater> practically only through the steam flute, which can easily be interpreted accordingly, while the overflow pipe here acts as a real backup, and only lets off steam and water when this is actually required for safety reasons, i.e. when the water heater is no longer driven in normal operation. I'm a mechanical failure

the innovation according to the device is in contrast to previously known Means, as can easily be seen from the description, impossible »

An exemplary embodiment of the furnace is described below with reference to the drawing: - _ ^r - "" ■■

Figure 1 shows a simplified representation of a hot water heater with; Overflow pipe and float, --.-. _:

FIG. 2 shows a perspective view of a swimmer of its own alone.

The tank 1 of the hot water heater is made of fireproof, for example

* ■ Glass is manufactured and is made by known means, such as tie rods, which are here are not drawn, connected to the flange 5, the electrical Tubular heater 6 and the switching devices (not shown) carries. By a Plastic cap 7, a closed Sehältraum is formed under the flange 5.

With 8 the pipe for the water supply and drainage is referred to, which at Connection of the hot water heater is to be connected to a fitting, which can optionally fill the container with cold water, draw off hot water from the container or - bypassing the hot water heater - allows cold water to be drawn from the line and also allows hot and cold water to be mixed.

A plastic float 4 is loose on the upper end 3 of the overflow tube 2 attached and thereby closes with its end cover 4ä the tube 2 in Container.

The steam that arises when the water is boiled flows through it the overflow pipe 2 is blocked, only "by the steam flute 10 into the open and shows the (small) required to operate the flute Pressure on. The swimmer of the boiling water also makes the swimmer 4 practically not raised during normal operation, so that through the overflow pipe 2 then no boiling water or steam can escape. Exceeds the water level but the maximum mark 9, "so he lifts the float 4 over its flange 4d, the end cover 4a of the float opens the opening of the pipe 2

* (Anchor)

■ and via the appropriately designed openings 4ΐ> in the jacket of the float, water and steam flow off until the normal water level is reached again »

Even in extreme cases, the float cannot completely lift off the tube 2 because it is made in a length that is greater than the distance between the upper wall 1a of the water tank and the upper end of the J Overflow pipe 2 «-

Claims (2)

Sohut zen claims 1 «Hot and boiling water heater with heated water tank, closable water inlet and outlet, overflow pipe opening freely into the atmosphere and vapor dissipating vapor flute, g e k e η η ζ e i c h η e t through a onto the open end (3) of the overflow pipe (2) located in the container (1) loosely attached float (4), which is designed as a front end (4a) closed pipe with a larger inner diameter than the outer diameter of the overflow pipe (2), and openings (4h) in the immediate vicinity below its forehead closure located section of the pipe jacket, and between this openwork and the closed smooth Longitudinal section (4c) of the pipe on the pipe jacket formed outer flange (4, 4d). 2. hot and boiling water heater according to claim 1, gekennze iehne t by training the float (4) in a length greater than the distance between the upper end of the overflow pipe s 2 and in the container (1) the upper wall (1a) of the water tank.