Liquid Meter Filtration with Gravity Settling Zones
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Solution Overview
Problem
Liquid meters with oscillating pistons face accelerated wear, reduced accuracy, and potential blockages due to solid particles like sand and rust, which existing filtration systems struggle to manage effectively, leading to premature clogging and service interruptions.
Innovation Solution
A measuring device with a filtration element featuring a decelerated circulation zone and a stable deposit zone upstream and/or downstream of the filtering zones, allowing particles to settle by gravity, thereby preventing them from reaching the measuring member and downstream devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a filter with very small pores is used to block particles, then filtration effectiveness is improved, but the filter becomes rapidly clogged up requiring frequent cleaning or replacement
Solution Approach 1:
The filter is divided into two distinct filtering zones with different pore sizes: a first filtering zone with smaller pores for fine filtration and a second filtering zone with larger pores for coarse filtration. This segmentation allows the system to handle different particle sizes separately, preventing rapid clogging of the fine filtration zone by larger particles.
Solution Approach 2:
The second filtering zone with larger pores is positioned to perform preliminary coarse filtration before the liquid reaches the first filtering zone with smaller pores. This preliminary action removes larger particles that would otherwise quickly clog the fine filtration zone, extending the filter's service life.
2Measurement precision
If a filter with very small pores is used to ensure fine filtration, then measurement accuracy is protected, but the filter requires frequent intervention and cutting off of supply
Solution Approach 1:
The filter is divided into two distinct filtering zones with different pore sizes: a first filtering zone with smaller pores for fine filtration and a second filtering zone with larger pores for coarse filtration. This segmentation allows the system to handle different particle sizes separately, preventing rapid clogging of the fine filtration zone by larger particles.
Solution Approach 2:
The second filtering zone with larger pores is positioned to perform preliminary coarse filtration before the liquid reaches the first filtering zone with smaller pores. This preliminary action removes larger particles that would otherwise quickly clog the fine filtration zone, extending the filter's service life.
3Device complexity
If a single filtering zone is used to protect the measuring member, then device simplicity is maintained, but the measuring member is still exposed to damaging particles when the filter is blocked or overwhelmed
Solution Approach 1:
The filter is divided into two distinct filtering zones with different pore sizes: a first filtering zone with smaller pores for fine filtration and a second filtering zone with larger pores for coarse filtration. This segmentation allows the system to handle different particle sizes separately, preventing rapid clogging of the fine filtration zone by larger particles.
Solution Approach 2:
The second filtering zone with larger pores is positioned to perform preliminary coarse filtration before the liquid reaches the first filtering zone with smaller pores. This preliminary action removes larger particles that would otherwise quickly clog the fine filtration zone, extending the filter's service life.
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
This configuration ensures continuous, efficient filtration, reducing wear and blockages by automatically removing particles, maintaining measurement accuracy and extending the operational period without requiring additional elements or frequent interventions.
Implementation Method 1
a stable deposit zone for at least specific particles transported by the flow of liquid and removed therefrom by the action of gravity
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 2C~3A
AI summary
The invention relates to a measuring device (1) for a liquid meter comprising a hollow body (3) delimiting a chamber (3') with an inlet opening and an outlet opening for the liquid to be measured, a measuring member (5) which is movably mounted in said chamber (3') and which is subjected to the action of the liquid passing through said chamber, and a filtration element (6) which is arranged and configured to be passed through by the liquid in circulation in the region of at least one filtering zone (9') before its entry into the chamber (3'). Measuring device (1), characterized in that it comprises at least one decelerated circulation zone for the liquid which is located upstream of the inlet opening, on the one hand, and upstream and/or downstream of an associated filtering zone (9') of the filtration element (6), on the other hand, and in that it also comprises, associated with said or each decelerated circulation zone, a stable deposit zone (8) for at least specific particles transported by the flow of liquid and removed therefrom by the action of gravity.