Removable Basket Filter Housing for Large Surface Area Maintenance

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Solution Overview

Problem

Conventional filter devices face difficulties in maintaining large filter surfaces, especially when replacing filter elements, due to the need for multiple housings and complex designs, which complicates maintenance, especially in harsh environments like offshore oil fields.

Innovation Solution

A filter device with a removable basket system that allows for easy installation and removal of multiple filter cartridges, featuring a carrier plate that separates dirty and clean sides and fluid passages, along with a connecting device that secures filter elements using a screw connection, enabling efficient maintenance and replacement of filter elements within a single housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple filter housings are used to achieve large filter surfaces, then the filter area increases, but the device complexity and maintenance difficulty increase

Engineering Contradiction:
Improvefilter surface areaVSAvoidnumber of housings
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent combines multiple filter elements into a single filter housing by providing a carrier with multiple element receptacles that can hold numerous filter cartridges simultaneously. This merging approach achieves large filter surfaces (greater than 500 m²) within one housing instead of requiring multiple separate housings, thereby reducing system complexity while maintaining the required filtration capacity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent segments the filter system into modular components: a carrier with multiple element receptacles, individual filter cartridges, and a removable basket structure. This segmentation allows each filter element to be independently replaceable while maintaining their organized arrangement within the single housing, facilitating easy maintenance without disrupting the entire system.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If multiple filter housings are used to achieve large filter surfaces, then the filter area increases, but the maintenance difficulty increases

Engineering Contradiction:
Improvefilter surface areaVSAvoidmaintenance ease
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

By combining multiple filter elements into one housing with a unified removable basket, the patent enables maintenance of large filter surfaces through a single access point. The basket can be removed as one unit, allowing all filter elements to be replaced simultaneously or individually without opening multiple housings, significantly simplifying maintenance operations.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces dynamic accessibility through the removable basket design. The basket can be easily inserted and removed from the housing, transforming the static maintenance process into a dynamic operation where filter elements can be quickly accessed, replaced, and reinstalled without complex disassembly procedures.

Inventive Principle:
Principle #15Dynamics

3Reliability

If filter elements are fixed securely in the housing, then the filtration reliability improves, but the replacement process becomes more complex

Engineering Contradiction:
Improvefiltration reliabilityVSAvoidelement replacement ease
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The patent segments the fixation mechanism into two parts: a secure connecting device with screw connections that firmly anchors filter elements during operation, and a removable basket structure that allows easy access. This segmentation enables filter elements to be tightly fixed for reliable filtration while permitting simple removal through basket extraction, resolving the contradiction between security and ease of replacement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent creates a dynamic fixation system where the connecting device provides rigid mechanical attachment during normal operation ensuring filtration reliability, but the entire basket assembly can be dynamically removed and reinstalled for maintenance. This allows the system to switch between a fixed state for operation and a movable state for maintenance.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2914361B1Filter apparatus for fluids
Publication Date: 2020.12.09 HYDAC PROCESS TECH
  • EP2914361B1 patent drawingFigure 1
  • EP2914361B1 patent drawingFigure 2
  • EP2914361B1 patent drawingFigure 3~4

AI summary

A filter apparatus for fluids, especially for low-viscosity liquids such as water, having a filter housing (1) in which element receivers (31) for a multitude of filter elements (21) are provided, wherein the filter medium (35) of said filter elements in the filter housing (1) separates a dirty side (5) from a clean side (7), wherein the filter housing (1) can be opened for the insertion and removal of the filter elements (21), is characterized in that, for the filter elements (21), a carrier in the form of a basket (19) has been provided, which can be inserted into and removed from the filter housing (1) and in which the filter elements (21) can be placed so as to be removable.