V-Bank Filter Probe for Pin-Hole Leak Detection

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Solution Overview

Problem

Conventional methods cannot accurately scan test v-bank filters for pin-hole leaks, limiting their use in contamination control applications due to inefficiencies and increased costs associated with using deep pleated filters instead.

Innovation Solution

A probe designed to scan v-bank filters simultaneously across adjacent media packs, with a configuration that allows for uniform airflow sampling and detection of pin-hole leaks, enabling effective leak detection and filter efficiency measurement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional scan testing methods are used, then measurement precision is improved, but the probe cannot be brought close enough to detect pin-hole leaks in v-bank filters

Engineering Contradiction:
Improveleak detection accuracyVSAvoidprobe accessibility
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The probe design transitions from conventional linear approaches to a multi-dimensional configuration with angled arms and positioning mechanisms that enable access to the V-shaped pleat packages from multiple spatial dimensions, allowing the probe to reach measurement positions that were previously inaccessible

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If deep pleated filters are used instead of v-bank filters, then validation requirements for scan testing are met, but air handling capacity decreases and energy consumption increases

Engineering Contradiction:
Improvevalidation complianceVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The probe serves as an intermediary that enables v-bank filters to meet validation requirements by providing a measurement interface that overcomes the geometric challenges of V-shaped pleats, allowing these high-performance filters to be used without requiring alternative deep pleated filter designs

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If deep pleated filters are used instead of v-bank filters, then scan testing validation requirements are met, but the number of filters required increases

Engineering Contradiction:
Improvevalidation complianceVSAvoidnumber of filters
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The probe acts as an intermediary measurement device that enables v-bank filters to satisfy validation requirements, eliminating the need to use multiple deep pleated filters as a workaround and thereby reducing the total quantity of filters required for a given application

Inventive Principle:
Principle #24Intermediary (Mediator)

4Productivity

If v-bank filters are used without accurate scan testing capability, then air handling capacity is maximized, but contamination control reliability decreases

Engineering Contradiction:
Improveair handling capacityVSAvoidcontamination control
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The probe serves as an intermediary that bridges the gap between v-bank filter design and validation requirements, enabling these high air-handling capacity filters to be reliably tested and certified for contamination control applications

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The probe effectively locates pin-hole leaks in v-bank filters, allowing for their use in applications where stringent validation requirements are met, reducing the need for deeper pleated filters and associated energy and filter costs.

Implementation Method 1

A probe designed to scan v-bank filters simultaneously across adjacent media packs, with a configuration that allows for uniform airflow sampling and detection of pin-hole leaks

Methodology Applied
Scientific EffectAirflow sampling:

Data Source

PatentEP1949065B1Method and apparatus for v-bank filter bed scanning
Publication Date: 2019.05.29 CAMFIL USA INC
  • EP1949065B1 patent drawingFigure 1A~1B
  • EP1949065B1 patent drawingFigure 2
  • EP1949065B1 patent drawingFigure 3

AI summary

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 (102) having first and second ends (104, 108). An outlet (106), formed a the second end of the body, is adapted for coupling a testing device to an interior volume of the body. A plurality of holes (110) 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 (100) 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 and into the probe.