Method and apparatus for v-bank filter bed scanning

• US 7,882,727 B2
• Filed: 05/18/2009
• Issued: 02/08/2011
• Est. Priority Date: 10/24/2005
• Status: Active Grant

• Current Assignee: Camfil Farr, Inc.
• Original Assignee: Camfil Farr, Inc.
• Inventors: Huza, Mark, Morse, Thomas C.
• Primary Examiner(s): FITZGERALD, JOHN P
• Application Number:
  US12/467,724
• Publication Number:
  US 20090255325A1
• Time in Patent Office: 631 Days
• Field of Search: 73/38, 738/659
• US Class Current: 73/38
• CPC Class Codes: B01D 2273/18 Testing of filters, filter elements, sealings
• CPC Class Codes: B01D 46/0086 Filter condition indicators
• CPC Class Codes: B01D 46/121 V-type arrangements
• CPC Class Codes: G01N 15/08 Investigating permeability, pore-volume, or surface area of porous materials
• CPC Class Codes: G01N 15/0806 Details, e.g. sample holders, mounting samples for testing
• CPC Class Codes: G01N 2001/2291 Movable probes, e.g. swivelling, swinging
• CPC Class Codes: G01N 2015/084 Testing filters

Abstract

Embodiments of the invention generally related to a method and apparatus for scanning a v-bank filter. In one embodiment, an apparatus for scanning a v-bank filter includes a hollow body having first and second ends. An outlet, formed at the second end of the body, is adapted for coupling a testing device to an interior volume of the body. A plurality of holes are formed through the body and are fluidly coupled to the interior volume. In another embodiment, a method for scanning a v-bank filter includes inserting a probe having a plurality of sample ports into a filter adjacent a filter pack, and traversing the probe along the filter pack. In yet another embodiment, a method for scanning a v-bank filter includes scanning a slot of a v-bank filter with a probe, and collecting samples of gas passing through the filter an into the probe.

Claims

1. A probe for scan testing a v-bank filter, comprising:

a hollow body having an interior volume, a first end and a second end, the hollow body having a first side and a second side tapering from the second end to the first end, the hollow body configured to extend between banks of a v-bank filter during testing;

an outlet formed at the second end of the body and adapted for coupling to a testing device the interior volume; and

a first opening formed through the first side of the body and fluidly coupled to the interior volume.

2. The probe of claim 1, wherein the first opening comprises:

a plurality of linearly aligned apertures.

3. The probe of claim 1, wherein the first opening is linearly arranged.

4. The probe of claim 1, further comprising:

a guide coupled to the body and configured to prevent the body from extending more than a predefined depth between the banks of the filter.

5. The probe of claim 1, wherein the first opening comprises:

a first slot formed through the first side of the body.

6. The probe of claim 5, wherein the first slot is a tapered slot having a wide end oriented towards the first end of the body.

7. The probe of claim 1, further comprising a second opening coupled to the interior volume of the body, the second opening formed in the second side of the body.

8. The probe of claim 7, wherein the first opening is one of a first plurality of apertures formed in a first leg of the body and the second opening is one of a second plurality of apertures formed in a second leg of the body, the legs defining an acute angle therebetween.

9. The probe of claim 8, wherein at least two of the first plurality of apertures have different effective orifice sizes.

10. The probe of claim 9, wherein the first plurality of apertures are arranged in order of orifice size.

11. A probe, comprising:

an elongated hollow body sealed at a first end and having a port at a second end;

a first tapered slot formed through a first wall of the body, wherein a wide end of the first tapered slot is orientated towards the first end of the body.

12. The probe of claim 11, further comprising:

a second opening formed through a second wall of the body opposite the first wall.

13. The probe of claim 12, wherein the second opening comprises:

a second tapered slot formed through the second wall of the body, wherein a wide end of the second tapered slot is orientated towards the first end of the body.