Fluid handling – Systems – Multiple inlet with multiple outlet
Reexamination Certificate
1999-10-25
2001-09-25
Chambers, A. Michael (Department: 3753)
Fluid handling
Systems
Multiple inlet with multiple outlet
C137S884000
Reexamination Certificate
active
06293305
ABSTRACT:
FIELD OF THE INVENTION
The present invention refers to a fluid flow distributor to be used with a steam trap of the type used in fluid feeding pipes, particularly those for steam feeding.
BACKGROUND OF THE INVENTION
The piping plants generally use many valves and devices for blocking, draining or directing fluid flow, as well as accessories for interconnecting these elements, which may present leak points. The steam feeding pipes are provided with steam traps which operate for removing the condensate from the main steam line of the plant, carrying this condensate to the environment or to condensate return lines of said plant.
In the known constructions of steam piping plants, the mounting of steam traps to the main steam line connecting the latter to the condensate return line or to the atmosphere, requires a large amount of components and consequently of replacement parts in the installations, as well as special mounting tools which, besides making difficult the installation and maintenance tasks, results in a high cost for installing and operating said plants. These difficulties of installation, maintenance and operation increase when the work must be carried out in places of difficult access in the main line. Furthermore, due to the complexity of the conventional installations, it is not always possible to place the steam traps in their best working position, jeopardizing the performance thereof.
Disclosure of the Invention
It is therefore an object of the present invention to provide a fluid flow distributor, particularly for mounting a steam trap in a steam feeding pipe plant which, besides making easier the installation, maintenance and operation tasks in said plant, reduces the number of components used in the installation of said steam traps in a plant, thereby reducing the costs with equipment, and with the installation, maintenance and operation thereof.
Another object of the present invention is to provide a steam piping plant with a fluid flow distributor which presents the above mentioned advantages and which further allows an installation of steam traps in the main line of the steam piping plant with an optimized positioning of the steam trap, even in places of difficult access. An additional object of the present solution is to provide a fluid flow distributor which, besides the advantages above, allows the standardization of installations with less and simplified tools and facilitates the access and replacement of the steam traps of said plant.
These and others objectives are achieved through a fluid flow distributor to be used with a steam trap, comprising a single valve body which includes: a steam inlet, operatively connected to a steam feeding pipe; a steam outlet, operatively connected to the steam trap inlet and in selective fluid communication with the steam inlet; a condensate inlet, operatively connected to the steam trap outlet; a condensate outlet, which is open to the outside of the single valve body and which is provided with fluid communication with the condensate inlet thereof; and a first valve element, provided in the fluid communication between the steam inlet and the steam outlet of the single valve body, in order to selectively allow and block the fluid communication between the steam feeding pipe and the steam trap. This construction allows a standardization of installation, because the whole connection of the trap with the plant is carried out through the single valve body.
REFERENCES:
patent: 3351281 (1967-11-01), Keil
patent: 5546976 (1996-08-01), Farquhar
patent: 5881766 (1999-03-01), Schlesch et al.
patent: 2 654 189 (1991-05-01), None
patent: 2 670 270 (1992-06-01), None
patent: 2 251 286 (1992-01-01), None
patent: 2 251 054 (1992-06-01), None
Chambers A. Michael
Duane Morris & Heckscher LLP
McShane Thomas L.
Spirax Sarco Industria e Comercio Ltda.
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