Dual-Chamber Kinetic Separator with PTFE Lining

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Solution Overview

Problem

Current systems for removing contaminants from process streams before analysis are inefficient and costly, often requiring expensive materials, lengthy maintenance, and excessive lag time, especially when dealing with varied temperatures, pressures, and high particulate loads.

Innovation Solution

A dual-chamber kinetic separator system with stainless steel chambers and PTFE Teflon-lined surfaces, utilizing a cooler with baffles to enhance separation efficiency and minimize lag time, combined with customizable filters for specific contaminant removal, and a back-flush setup for efficient filter maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If membrane separators are used to remove liquids from gas samples, then separation efficiency is improved, but the submicron-rated membranes do not tolerate particles in the process and require differential pressure greater than 15 psi which pushes larger water molecules through the membrane

Engineering Contradiction:
Improveseparation efficiencyVSAvoidmembrane tolerance to particles
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The separator is divided into two distinct chambers: a first chamber for initial separation and a second polishing chamber for final purification. This segmentation allows the first chamber to handle particle-laden streams and the second chamber to provide precise separation, resolving the contradiction between separation efficiency and particle tolerance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The first chamber acts as an intermediary between the process stream and the sensitive submicron-rated membrane in the second chamber. It pre-conditions the stream by removing large particles and bulk contaminants, protecting the membrane from damage while maintaining high separation efficiency in the polishing chamber.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If knock-out separators are used to remove contaminates from gas samples, then contaminate removal is improved, but the device requires relatively large bodies with limited flow which creates excessive lag time

Engineering Contradiction:
Improvecontaminate removalVSAvoidlag time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The separator utilizes vertical stacking of chambers and strategic placement of outlets at different heights to create multiple flow paths. The second chamber outlet is positioned at the top while the first chamber outlet is at the bottom, enabling parallel processing and reduced lag time while maintaining effective contaminate removal.

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

Solution Approach 2:

By segmenting the separation process into two chambers operating in series, the system achieves thorough contaminate removal without requiring a single large body. The divided configuration reduces flow path length and lag time while maintaining separation effectiveness.

Inventive Principle:
Principle #1Segmentation

3Measurement precision

If filters are used to remove impurities from the sample stream, then filtration effectiveness is improved, but filter element replacement requires excess lag time and is costly

Engineering Contradiction:
Improvefiltration effectivenessVSAvoidfilter replacement time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system employs disposable filter cartridges that can be quickly replaced without costly maintenance procedures. The filter housing design facilitates rapid cartridge changes, and the dual-chamber configuration allows one filter to be replaced while the other continues operating, minimizing process interruption time.

Inventive Principle:
Principle #34Discarding and recovering

Solution Approach 2:

The dual-chamber design provides a buffer that allows filter replacement in one chamber while the other chamber continues to provide filtration. This提前做好 preparation ensures continuous operation and minimizes lag time during maintenance.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

4Reliability

If exotic metals such as Hastelloy C and Monel are used for the separator body to withstand corrosive samples, then corrosion resistance is improved, but the manufacturing price increases by as much as five times

Engineering Contradiction:
Improvecorrosion resistanceVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The separator body uses a composite construction with a stainless steel housing and PTFE Teflon-lined internal surfaces. This combination provides the corrosion resistance of exotic materials where needed while maintaining the cost-effectiveness and manufacturability of standard stainless steel for the external structure.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

Corrosion-resistant PTFE lining is applied only to the internal surfaces that contact the process stream, rather than using expensive exotic metals throughout the entire separator body. This localized application of protective material provides adequate corrosion resistance while significantly reducing manufacturing costs.

Inventive Principle:
Principle #3Local quality

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 system effectively separates contaminants from process streams, reduces maintenance costs, and minimizes lag time across various applications, ensuring accurate analyzer readings and prolonged equipment life.

Implementation Method 1

A denser contaminant particle in a sample stream possesses a higher inertial force, rendering it less susceptible to dispersion due to pressure loss. Consequently, it continues in the flow stream while system pressure and flow path contours force the lighter components to flow toward a low pressure port above the sample outlet.

Methodology Applied
Scientific EffectInertia: Inertia

Implementation Method 2

In a flowing process stream, the condensate and solid particulates in a gaseous sample... are not able to negotiate a 180 degree reversal of flow direction and will tend to remain in the fluid stream

Methodology Applied
Scientific EffectCondensation: Condensation

Data Source

PatentUS10209163B2Systems and methods for removing contaminates from a stream prior to passing the stream through an analyzer
Publication Date: 2019.02.19 SHEFFIELD GLENN
  • US10209163B2 patent drawing
  • US10209163B2 patent drawing
  • US10209163B2 patent drawing

AI summary

A separator comprising: a first and second chamber, wherein the chambers are generally vertically disposed and parallel to each other; and the chambers have an upper end and a lower end; and the separator comprises an upper body and a lower body, wherein the upper ends are disposed in communication with the upper body, and the lower ends are disposed in communication with the lower body.Further disclosed is a single-chamber separator including a cooler. The cooler surrounds a portion of the chamber, and includes a coolant inlet disposed on a bottom surface, and a coolant outlet disposed on a top surface, and further includes baffles for directing coolant flow in a back and forth manner inside of the cooler.Also disclosed is a dual-chamber separator including a plurality of filters. The filters are disposed in the chambers in surrounding relationship to the tubes.