Reciprocating Pump Membrane Pressure Gauge Integration
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Solution Overview
Problem
Conventional reciprocating pumps experience a decrease in fluid purity due to the formation of liquid pools in the fluid channel caused by the mounting of pressure gauges, which introduces particles into the fluid.
Innovation Solution
A reciprocating pump design that includes a membranous portion with flexibility, sandwiched between the pressure receiving portion and the fluid channel, preventing the formation of liquid pools by eliminating the space that would otherwise occur during pressure gauge mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a pressure gauge is mounted to the housing by screwing it into a mounting hole in the wall, then the pressure gauge can detect fluid pressure, but space is formed between the pressure receiving portion and the fluid channel causing liquid pool formation
Solution Approach 1:
A membranous portion is introduced as an intermediary element between the pressure receiving portion and the fluid channel. This membrane transmits pressure from the fluid while preventing liquid pool formation, eliminating the harmful space that would otherwise accumulate fluid.
Solution Approach 2:
The patent employs a flexible membranous portion that can deform under pressure while maintaining a sealed interface. This thin film structure eliminates dead spaces and prevents liquid pool formation while still allowing accurate pressure transmission to the gauge.
2Measurement precision
If a pressure gauge is mounted to the housing, then pressure detection is enabled, but particles may mix into the fluid through the liquid pool, lowering fluid purity
Solution Approach 1:
The membranous portion serves as a barrier that prevents particle contamination while transmitting pressure information. By eliminating the liquid pool space where particles could accumulate and mix into the main fluid stream, the membrane protects fluid purity.
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 that no liquid pool forms in the fluid channel, maintaining the fluid at excellent purity during transfer.
Implementation Method 1
a membranous portion having flexibility and placed continuously next to the inner wall to face the fluid channel. The pressure gauge is attached to the housing such that the membranous portion is sandwiched between the pressure receiving portion and the fluid channel
Data Source
AI summary
A reciprocating pump includes: a housing with a fluid channel that includes a pump chamber; a reciprocated member that is disposed in the housing to form the pump chamber, and reciprocable for suction and discharge of fluid; an actuator configured to reciprocate the reciprocated member; and a pressure gauge with a pressure receiving portion, configured to detect pressure of the fluid in the fluid channel via the pressure receiving portion. The housing includes an inner wall facing the fluid channel, and a flexible, membranous portion placed continuously next to the inner wall to face the fluid channel. The pressure gauge is attached to the housing such that the membranous portion is sandwiched between the pressure receiving portion and the fluid channel.