CS260091B1 - Safety water trap with condensate drain - Google Patents

Abstract

A safety water seal with condensate drain enables the safe drainage of toxic and flammable gas when the pressure in the pipe or container increases, e.g. in controlled atmosphere generators. This requirement is met by a container closed from above in a gas-tight manner by a lid with a free space between it and the water level. In addition to the condensate inlet pipe, the lid also contains a gas outlet and a condensate drain pipe, which is located in the container shell and extends into the water column below the lower edge of the condensate inlet pipe.

Description

The present invention relates to a condensate drain safety water seal, in particular for controlled atmosphere generators.

The existing water closures with condensate drain were designed as non-closed containers with a supply line protected against bubbling by a safety valve. Float condensate traps are also known for the condensate drain, which also had to be supplemented with a safety valve. Moreover, these traps are unsuitable for lower pressures, where they exhibit frequent failure and unreliability. For both types, the existence of valves means increased maintenance costs.

These drawbacks are overcome by a condensate drainage water seal consisting of a container filled with water and into which a condensate inlet pipe and a condensate drain pipe according to the invention are introduced from above, the principle being that the container is closed from above by a gas-tight lid. The condensate drain pipe extends below the lower edge of the condensate inlet pipe into the water over which there is free space.

The advantages achieved by the invention are primarily that it eliminates the risk of leakage of toxic, flammable gas when the pressure in the pipeline or vessel is increased, and also in manufacturing and operating simplicity, reliability and thus lower maintenance costs.

An exemplary embodiment of the invention is shown in the accompanying drawing, in which: FIG.

The condensate drainage water seal consists of a vessel 2 enclosed by a wolf 10 which is gas-tight. The vessel 2 comprises water 2 and a free space 6 between the water level 2 and the lid 23 is provided. Furthermore, in this cover 2 a gas outlet 2 is provided. The condensate drainage tube 2 passes through the jacket of the container 2, which flows into the container 2 at the water level 2 and is bent with its elongated end extending below the lower edge of the inlet tube 2 towards the bottom of the container 2.

Condensate from the inlet pipe 2 comes from an internal pressure operating device that is less than the height of the water column from the end of the inlet pipe 2 to the water level 2. This water column prevents gas from bubbling. The condensate introduced raises the water level 2, which overflows the drain pipe outside the vessel 2 · In the event of an unwanted pressure increase / bubbling gas through the inlet pipe 2 ^{into the} open space 6 in the plant, from where it is discharged through a drain 5 above the roof. Thus, since the vessel 2 is hermetically sealed, the condensate flows through a water seal that is larger than the water seal supplying condensate from the vessel 2.

The invention can be used not only for controlled atmosphere generators, but also for other devices where condensate needs to be drained and to ensure that flammable or toxic gases do not leak into the production hall.

Claims (1)

Condensate drainage water seal consisting of a vessel filled with water into which a condensate inlet pipe is introduced from above and a condensate drain pipe from the side, characterized in that the vessel (1) is closed from above by a gas-tight lid (7) in which the drain (5) of gas, wherein the condensate drain pipe (4) extends into the water (2) above which there is free space (6) with its elongated end below the lower edge of the condensate inlet pipe (3).