RU1773447C - Cooling water filter - Google Patents

Abstract

The invention relates to cooling water filters and allows to reduce the overall length of the filter, to increase its reliability while reducing hydraulic resistance and reducing water consumption for washing. The filter comprises a knee-shaped housing integrated in the water conduit and mounted rotatably on a support removed from the main water flow and fixed externally to the convex wall of the water conduit, a washing system mounted externally to the convex wall of the water conduit. 1 ill.

Description

The invention relates to cooling water filters for ball cleaning systems of steam turbine condensers and can be used in the power industry.

The aim of the invention is to reduce the overall length of the filter and increase its reliability while reducing hydraulic resistance and reducing the flow of water for washing the filter.

The drawing shows a cooling water filter containing a housing 1, made in the form of a knee and built into the conduit. A filter element 2 is mounted in the housing for rotation on a support 3 mounted on a convex wall of the housing 1 on a hollow shaft 4. The washing system 5 comprises a pipe 6 welded externally to the housing 1. in which there are holes with nozzles 7 to which are fed through the pipe 6 water for washing. O-ring 9 is mounted on the housing 1 in

end of the filter element. An auxiliary support 9 is also fixed on the inner wall of the housing.

The filter works as follows.

The filter element 2 is driven by a drive mechanism (not shown) and rotates in the support 3. The impurities retained by that part of the filter element that is in the main flow of cooling water are transferred to the convex wall of the duct (to the washing system), where fall into the equalized pressure zone. Here, the main stream of water pollution is transferred to the top of the Kyno / id of the filter element and through the hollow shaft 4 are removed from the filter.

To facilitate the separation of contaminants, forced washing through nozzles 7 can be used.

The mechanical drive used (not shown) allows the rotation speed of the filter element to be changed, which

during seasonal variations in the degree of water pollution,

Thanks to the installation of the filter element in the elbow of the water conduit, large straight sections of the water conduit are not required, which expands the possibility of using the filter. This also makes it possible to remove the filter washing system from the main flow of cooling water and fix it to the outer wall of the water conduit, which significantly reduces the hydraulic resistance of the filter.

Since the support of the filter element is removed from the main stream of water and fixed externally to the wall of the water conduit. free access to the support is ensured during operation, which increases the reliability of the filter.

Since the washing of the filter element takes place not at the center (in the main water flow), but at the periphery (near the wall of the water conduit), where the water speed is small and the dirt is not pressed firmly against the filter element, it is easy to wash them and a much smaller amount of water is required for this and energy. This eliminates most of the obstacles to the use of ball cleaning systems in domestic power systems. The cooling water filter can also

It can be used as a ball catching device in a ball cleaning system.

Claims (1)

The claims A cooling water filter comprising a housing, inside which a mesh filter element is arranged, and a washing system, characterized in that, with in order to reduce the overall length of the filter, increase its reliability while reducing hydraulic resistance and reducing the flow of water for washing the filter, the housing built into the water conduit is made in the form of a knee, and the filter element is mounted to rotate on a support removed from the main stream of water and mounted externally on the convex wall of the water conduit, and the washing system is fixed outside on the convex wall of the conduit. Editor Compiled by H, Paul Cova Tehred M. Morgenthal Corrector N. Tupitsa