VORTEX DE-AERATOR

• US 3,771,290 A
• Filed: 12/06/1971
• Issued: 11/13/1973
• Est. Priority Date: 12/06/1971
• Status: Expired due to Term

• Current Assignee: Walter C. Stethem
• Original Assignee: Walter C. Stethem
• Inventors: Stethem, Walter C.
• Primary Examiner(s): Spear, Jr., Frank A.
• Assistant Examiner(s): Burks, Richard W.
• Application Number:
  US05/205,188
• Time in Patent Office: 708 Days
• Field of Search: 55/39,52,185,191,204,205,336,206 210/304,312,436,512
• US Class Current: 96/210
• CPC Class Codes: B01D 19/0057 the centrifugal movement being caused by a vortex, e.g. using a cyclone, or by a tangential inlet

Abstract

In a vortex type de-aerator for separating air and other gases from a flowing liquid, having a central perforate tube located within a vessel having a tangential inlet and a tangential outlet, a vortex stabilising baffle device is located adjacent to the inlet for stabilising the vortex flow and for shielding separated gas from any disturbances at the inlet.

Claims

1. A vortex type de-aerator for separating air and other gases from a flowing liquid, comprising a hollow body of circular interior cross section having a substantially vertical axis, a perforate tube extending axially the full length of the body and communicating at its upper end with an air outlet, perforate partition means mounted within the body and defining therein upper and lower compartments, said partition means comprising a horizontal annular plate having ports disposed radially outwardly from the tube for the return of liquid from the upper compartment to the lower compartment, means defining a tangential inlet and a tangential outlet to said lower compartment whereby to provide rotating flow of liquid therebetween, the tangential inlet and the tangential outlet being axially spaced and the tangential inlet being disposed adjacent to said partition means, a skirt depending from said partition means and surrounding the perforate tube, and an annular baffle plate connected to the lower end of the skirt at a level below the tangential inlet and above the tangential outlet.

2. A vortex type separator according to claim 1 including a frusto-conical screen mounted within the body, the screen defining within the lower compartment an annular space to which liquid must pass through the screen, said tangential outlet communicating with the annular space.

3. A vortex type de-aerator for separating air and other gases from a flowing liquid, comprising a hollow body of circular interior cross section having a substantially vertical axis and a cylindrical inner wall, a perforate tube extending axially the full length of the body and communicating at its upper end with an air outlet, a perforate annular plate extending horizontally from the tube to said inner wall, the plate being connected to the inner wall of the body and defining upper and lower compartments therein, said annular plate providing perforations disposed radially outwardly from the tube for the return of liquid from the upper compartment to the lower compartment, a firSt fitting defining a tangential inlet to said lower compartment and a second fitting defining a tangential outlet to said lower compartment, whereby to provide rotating flow of liquid between said tangential inlet and outlet, the tangential inlet and outlet being axially spaced and the tangential inlet being disposed adjacent to said annular plate, A cylindrical skirt depending from the annular plate and surrounding the perforate tube, and an annular baffle plate of smaller diameter than said perforate annular plate connected to said skirt at a level below the tangential inlet and above the tangential outlet.

4. A vortex type separator according to claim 3, wherein the body is formed with an axially located bottom opening fitted with a removable closure, whereby to provide access to the interior of the body.

5. A vortex type de-aerator according to claim 3, including a frusto-conical screen located within said lower compartment and defining an annular space communicating with said tangential outlet, the screen being positioned to intercept solid matter contained in the liquid flowing to said tangential outlet.