Fluid guiding protection device and filter with fluid guiding protection function

Abstract

A fluid guiding and protection device and a filter with fluid guiding and protection function are disclosed. The filter includes a filter unit and a fluid guiding and protection device disposed at the fluid inlet end of the filter unit. The inner plate surface of the fluid inlet end plate is provided with a flow guiding structure, which has multiple radial flow guiding holes that disperse and connect to the water inlet channel. The flow guiding structure guides the axially flowing fluid to disperse into radially flowing fluid. Combined with the blocking effect of the axial baffle at the end of the water inlet channel away from the fluid inlet, which closes the end of the water inlet channel, it offsets part of the impact force of the fluid. Furthermore, by utilizing the structure of multiple radial flow guiding holes that disperse and connect to the end of the water inlet channel, the turbulent fluid is reorganized into radially flowing laminar flow. The fluid kinetic energy is converted into stable flow, reducing the impact force of high-speed or high-pressure fluid entering the filter unit on the filter media.

Claims

1. A fluid guiding and protection device, comprising: A fluid input end plate has an inner plate surface on one side and a fluid inlet is provided in the fluid input end plate; A flow guiding structure is provided on the inner plate surface of the fluid input end plate. The flow guiding structure includes a flow guiding section that extends axially from the inner plate surface of the fluid input end plate. A water inlet channel in the flow guiding section connects to the fluid inlet. An axial baffle is provided at the end of the flow guiding section away from the fluid inlet to close the end of the water inlet channel. A plurality of radial flow guiding holes are arranged at intervals around the periphery of the flow guiding section. The plurality of radial flow guiding holes are located between the axial baffle and the inner plate surface, and the plurality of radial flow guiding holes extend radially from the water inlet channel.

2. The fluid guiding and protection device as described in claim 1, wherein, The outer peripheral surface of the flow guide has a plurality of radially protruding flow guide vanes, which are arranged alternately with the radial flow guide holes. The height of the flow guide vanes to the inner plate surface is close to the distance between the axial baffle of the flow guide and the inner plate surface.

3. The fluid guiding and protection device as described in claim 1 or 2 further includes a flow guiding wall that extends outward from the inner plate surface of the fluid input end plate and surrounds the periphery of the flow guiding portion, and the side of the flow guiding wall facing the flow guiding portion has an inner ring slope.

4. The fluid guiding and protection device as described in claim 3, wherein, The axial end of the flow guide wall away from the inner plate surface has a wall height relative to the inner plate surface, which is greater than the height of the axial end of the flow guide away from the inner plate surface relative to the inner plate surface. The inclination angle of the inner ring inclined surface relative to the inner plate surface is 100 degrees to 150 degrees.

5. The fluid guiding and protection device as described in claim 3, wherein, The flow guide wall is a circular wall, and the side of the wall facing the flow guide forms the inner ring slope.

6. The fluid guiding and protection device as described in claim 3, wherein, The flow guide wall is composed of a plurality of wall blocks arranged in a ring around the periphery of the flow guide. Each of the wall blocks is located at a position corresponding to a radial flow guide hole, and the side of the wall block facing the radial flow guide hole forms an inclined surface to form the inner ring inclined surface.

7. A filter with fluid guiding protection function, comprising: A fluid guiding and protection device as claimed in any one of claims 1 to 6: and a filter unit comprising a housing and a filter media disposed within the housing, one axial end of the housing being a fluid inlet end, the fluid guiding and protection device being disposed at the fluid inlet end of the housing, the inner plate surface and the flow guiding structure of the fluid guiding and protection device facing the filter media, the other axial end of the housing being a fluid outlet end, and a fluid outlet end plate portion being provided at the fluid outlet end, the fluid outlet end plate portion having a fluid outlet.

8. A filter with fluid guiding protection function as described in claim 7, wherein, The fluid inlet plate can be detachably assembled with the housing of the filter unit.

Images