Filter Plate Temperature Control Plate Elastic Seal
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Solution Overview
Problem
Filter plates with metal heating elements connected to plastic frames in filter presses often experience leaks and stress due to differing coefficients of thermal expansion, leading to relative displacements and damage to sealing elements.
Innovation Solution
A filter plate design where a temperature-control plate is fastened to an elastic element, allowing it to expand or contract freely without causing tension or leaks, with the elastic element compensating for thermal changes in both the temperature-control plate and the basic body, ensuring a liquid-tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a metal temperature-control plate is rigidly connected to a plastic basic body, then heat transfer efficiency is improved, but thermal expansion differences cause leaks and damage to sealing elements
Solution Approach 1:
The patent employs an elastic element (flexible film) as an intermediary between the metal temperature-control plate and the plastic basic body. This elastic element can deform to accommodate thermal expansion differences, preventing leaks and damage to sealing elements while maintaining effective heat transfer from the metal plate through the elastic element to the filter cake.
2Stability of the object's composition
If a metal temperature-control plate is rigidly fixed to the basic body, then structural stability is improved, but thermal stress causes relative displacements and leaks
Solution Approach 1:
The elastic element serves as a flexible intermediary that maintains structural stability while accommodating thermal expansion. It allows the metal temperature-control plate to expand and contract freely during heating and cooling cycles without causing relative displacements that would compromise sealing reliability.
Solution Approach 2:
The patent changes the mechanical properties of the connection by introducing an elastic element with appropriate stiffness characteristics. This allows the connection to be sufficiently stable for structural support while remaining compliant enough to absorb thermal expansion differences, thus preventing leaks.
3Device complexity
If the temperature-control plate is directly connected to the basic body, then device complexity is reduced, but thermal expansion causes tension and breakage
Solution Approach 1:
The elastic element acts as an intermediary component between the metal temperature-control plate and the plastic basic body. While it does add a component, it significantly simplifies the overall design by eliminating the need for complex expansion joints, flexible connections, or active compensation mechanisms. The elastic element inherently absorbs thermal stress, preventing tension and breakage.
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 solution prevents leaks and tension between the temperature-control plate and the basic body, maintaining a reliable seal during temperature changes, and allows for effective heat transfer to the filter cake while preventing breakage during drying.
Implementation Method 1
A filter plate (1) having a basic body (1) and an elastic element (8) which is fastened to the basic body (1) in an annular and liquid-tight manner... the elastic element (8) compensating for thermal changes in both the temperature-control plate and the basic body
Implementation Method 2
allows for effective heat transfer to the filter cake while preventing breakage during drying
Data Source
AI summary
A filter plate having a basic body and an elastic element which is fastened to the basic body in an annular and liquid-tight manner. The filter plate is distinguished by the fact that a temperature-control plate is fastened to the elastic element.