Venturi Flowmeter Replaceable Tube Insert and Ring Element
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Solution Overview
Problem
Venturi flowmeters face accuracy degradation and increased maintenance costs due to wear and water scale formation on the inner walls of the main orifice, affecting differential pressure measurement.
Innovation Solution
A Venturi flowmeter design incorporating a hollow ring with a stopper and a tapered shape, connected between the main orifice and element, along with a replaceable tube inserted into the main orifice, to minimize the impact of wear and water scale on measurement accuracy and reduce maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the main orifice is used continuously for fluid flow measurement, then the flowmeter operates without interruption, but wear and water scale formation on the inner wall degrades measurement accuracy
Solution Approach 1:
The main orifice is divided into two separable parts: a fixed body and a replaceable tube insert. The tube insert can be removed and replaced independently when worn or scaled, allowing continuous operation of the flowmeter while maintaining measurement accuracy through periodic replacement of the consumable tube portion.
Solution Approach 2:
The tube insert is designed as a disposable or periodically replaceable component. When the tube insert becomes worn or covered with water scale, it can be discarded and replaced with a new one, while the main body of the flowmeter is retained and reused, thus maintaining continuous operation without replacing the entire device.
2Measurement precision
If the entire flowmeter is replaced to maintain measurement accuracy, then measurement precision is restored, but maintenance costs and installation time increase
Solution Approach 1:
The flowmeter is segmented into a permanent main body and a replaceable tube insert. Only the tube insert needs to be replaced when accuracy degrades, not the entire flowmeter. This significantly reduces maintenance costs and installation time compared to replacing the complete device.
Solution Approach 2:
The tube insert is designed as a relatively inexpensive, short-living component that can be easily replaced. This allows maintenance to be performed economically by replacing only the worn tube rather than investing in a new complete flowmeter system.
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 design enhances measurement accuracy and reduces maintenance and installation costs by allowing for the replacement of specific components rather than the entire flowmeter, thereby minimizing errors caused by wear and water scale formation.
Implementation Method 1
The Venturi flowmeter is a flowmeter configured to calculate a flow rate by measuring a differential pressure according to flow of a fluid in a Venturi pipe installed in a flow channel to cause a pressure change
Data Source
AI summary
A venturi flowmeter includes a ring of which the inside is hollow and which prevents inner wall abrasion or fatigue load accumulation at a main orifice and thus can reduce maintenance costs. The venturi flowmeter includes a main orifice of which the inside is hollow and an element of which one side has a hollow inside having the same diameter as that of a through-hole of the main orifice, and which has a tapered shape toward the other side thereof. A diffuser has one side having a hollow inside of the same diameter as that of the through-hole of the main orifice, and which has a tapered shape toward the other side thereof. A ring is connected between the main orifice and one side of the element. The ring includes a stopper formed along an inner wall and having a hollow central portion.