Industrial Filter Cleaning Tank Assembly Without Welded Seals

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Solution Overview

Problem

Existing industrial filter cleaning assemblies require cumbersome and risky welding operations for seal formation, leading to potential breakage and high machining costs, compromising seal quality and durability.

Innovation Solution

A simplified assembly design featuring a tank with die-cast half-shells and a valve integrated directly onto the tank, eliminating welds and reducing assembly complexity while maintaining seal integrity and durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If welding operations are used to form seals on the tank, then seal quality and durability can be achieved, but the manufacturing process becomes cumbersome, difficult to perform, and exposes the tank to high risks of breaking

Engineering Contradiction:

Improveseal qualityVSAvoidmanufacturing complexity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces the welding process (thermal/mechanical system) with a mechanical sealing system consisting of a sealing flange and sealing element that can be bolted to the tank. This substitution eliminates the need for welding operations while maintaining seal integrity, thereby resolving the contradiction between achieving reliable seals and avoiding manufacturing complexity and tank breakage risks.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If welding operations are used to form seals on the tank, then seal quality can be achieved, but the risk of tank breaking at welding points increases

Engineering Contradiction:

Improveseal qualityVSAvoidtank strength

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent substitutes welding with a mechanical flange-and-seal system that applies localized sealing pressure without thermal input. This eliminates the risk of weakening the tank structure through welding heat or stress concentration, while still achieving reliable sealing through the sealing element and flange configuration.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If conventional welding methods are used for seal formation, then sealing can be achieved, but machining costs increase

Engineering Contradiction:

Improveseal integrityVSAvoidmachining cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces expensive welding operations with a mechanical sealing system using standard flanges and sealing elements that can be manufactured and assembled using conventional, lower-cost machining and assembly processes. This substitution maintains seal integrity while reducing overall manufacturing costs.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Adaptability or versatility

If the valve and tank are separate components requiring assembly, then manufacturing flexibility is maintained, but assembly complexity and potential leakage points increase

Engineering Contradiction:

Improvemanufacturing flexibilityVSAvoidassembly complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent integrates the valve directly into the tank structure, making them a single unified component rather than separate parts requiring assembly. This merging eliminates the need for additional sealing interfaces between valve and tank, reduces assembly complexity, and decreases the number of potential leakage points, while the integrated design maintains manufacturing flexibility through the choice of integration method.

Inventive Principle:

Principle #5Merging (Combining)

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 new assembly enhances tank strength, distributes pressure loads effectively, reduces machining costs, and simplifies assembly, ensuring reliable operation and maintenance access.

Implementation Method 1

In the closure position, the diaphragm allows air to enter the tank while preventing the flow of air from the tank to the firing duct while, in the opening position, the diaphragm allows air to flow/be fired from the tank to the filters through the duct

Methodology Applied

Scientific EffectPressure differential: Pressure Gradient

Implementation Method 2

The jet of compressed air hitting the filtering elements causes the solid particles retained by the elements themselves to detach and collect at the bottom of the box due to gravity

Methodology Applied

Scientific EffectGravity: Gravitation

Data Source

PatentEP4558247B1Improved assembly for the cleaning of industrial filters

Publication Date: 2026.04.22 TRIMEC SRL

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Figure 2
Figure 3~4

AI summary

The present invention relates to an assembly (1) for the cleaning of industrial filters, comprising a pressurized air storage tank (2) provided, in use, with an upper opening (3) and with a lower opening (4) for air inlet and outlet, respectively, a valve (5) for the controlled delivery of pressurized air from the tank (2) to the lower opening (4), a firing duct (6) at least partly inserted inside the tank (2) and having a first end (7) connected to the upper opening (3) of the tank (2) through the interposition of the valve (5), and a second end (8) at least partly protruding from the lower opening (4) and associable with an industrial filter, characterized by the fact that the tank (2) is made by a lower half-shell (15) and an upper half-shell (16) with spherical cover joined together, in a sealing manner.