Flow Directing Apparatus for Fluid Regulators
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Solution Overview
Problem
Fluid regulators face limitations in maintaining accurate pressure regulation due to droop and boost flow characteristics, which restrict their capacity and accuracy classification across a wide range of pressure differentials, leading to deviations from set control pressures.
Innovation Solution
The implementation of a dual-function flow directing apparatus within the fluid regulator, featuring a droop reducing portion to direct fluid away from the sensing chamber at low pressure differentials and a boost reducing portion to direct fluid toward the sensing chamber at high pressure differentials, effectively controlling both droop and boost characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fluid regulator uses a boost reducing mechanism, then it can maintain accuracy at low pressure differentials, but it is limited to low pressure differential applications and cannot handle high pressure differentials
Solution Approach 1:
The flow directing member is segmented into distinct functional portions: a droop reducing portion with a first opening and a boost reducing portion with a second opening. Each portion is optimized for specific pressure differential ranges, allowing the single component to address multiple operating conditions that previously required separate mechanisms.
Solution Approach 2:
The flow directing member serves multiple functions simultaneously: it reduces droop at low pressure differentials through its first opening and reduces boost at high pressure differentials through its second opening. This multi-functional design eliminates the need for separate boost and droop reducing mechanisms, expanding the regulator's applicability across the full pressure differential range.
2Measurement precision
If a fluid regulator uses a droop reducing mechanism, then it can maintain accuracy at high pressure differentials, but it is limited to high pressure differential applications and cannot handle low pressure differentials
Solution Approach 1:
The flow directing member is segmented into distinct functional portions: a droop reducing portion with a first opening and a boost reducing portion with a second opening. Each portion is optimized for specific pressure differential ranges, allowing the single component to address multiple operating conditions that previously required separate mechanisms.
Solution Approach 2:
The flow directing member serves multiple functions simultaneously: it reduces droop at low pressure differentials through its first opening and reduces boost at high pressure differentials through its second opening. This multi-functional design eliminates the need for separate boost and droop reducing mechanisms, expanding the regulator's applicability across the full pressure differential range.
3Device complexity
If a fluid regulator does not control both droop and boost characteristics, then the device complexity is reduced, but the overall capacity and accuracy classification cannot be maximized
Solution Approach 1:
The patent merges the droop reducing mechanism and boost reducing mechanism into a single integrated flow directing member. This unified component contains both the first opening for droop reduction and the second opening for boost reduction, eliminating the need for separate mechanisms while achieving full control over both flow characteristics.
Solution Approach 2:
The flow directing member serves multiple functions simultaneously: it reduces droop at low pressure differentials through its first opening and reduces boost at high pressure differentials through its second opening. This multi-functional design eliminates the need for separate boost and droop reducing mechanisms, expanding the regulator's applicability across the full pressure differential range.
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 solution enhances the accuracy classification and capacity of fluid regulators by maintaining consistent pressure regulation across a broader range of pressure differentials, ensuring they can meet downstream demands more effectively.
Implementation Method 1
The flow directing member having a droop reducing portion to direct fluid flowing through the orifice toward the outlet of the passageway and away from the sensing chamber of the actuator at a first pressure differential across the orifice
Implementation Method 2
a boost reducing portion to direct fluid flowing toward the sensing chamber of the actuator at a second pressure differential, where the second pressure differential is greater than the first pressure differential
Implementation Method 3
The actuator moves the valve plug relative to the valve seat to control fluid flow through the orifice between the inlet and the outlet in response to the pressure of a process fluid at the outlet
Data Source
Figure 1
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Figure 4
AI summary
Flow directing apparatus for use with fluid regulators are described herein. An example fluid regulator includes a body having a passageway defining an orifice that fluidly couples an inlet and an outlet. A valve plug is disposed within the passageway that moves relative to a valve seat adjacent the orifice. An actuator operatively coupled to the valve plug and the actuator includes a sensing chamber fluidly coupled to the outlet of the passageway. The actuator moves the valve plug relative to the valve seat to control fluid flow through the orifice between the inlet and the outlet in response to the pressure of a process fluid at the outlet. A flow directing member is coupled to the valve plug. The flow directing member having a droop reducing portion to direct fluid flowing through the orifice toward the outlet of the passageway and away from the sensing chamber of the actuator at a first pressure differential across the orifice, and a boost reducing portion to direct fluid flowing toward the sensing chamber of the actuator at a second pressure differential, where the second pressure differential is greater than the first pressure differential.