Reciprocating Pump 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 pump chamber caused by the mounting of pressure gauges, which leads to particle contamination.
Innovation Solution
The reciprocating pump design incorporates a pressure gauge that is coupled to the reciprocated member, such as a rolling diaphragm or bellows, with a membranous portion between the pressure receiving portion and the pump chamber, preventing the formation of liquid pools by ensuring the pressure gauge is reciprocated with the membranous portion, thus maintaining fluid purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the pressure gauge is screwed to the housing wall, then the pressure gauge can be mounted on the housing, but space forms between the pressure receiving portion and the pump chamber causing liquid pool formation
Solution Approach 1:
The pressure gauge is integrated with the reciprocated member (diaphragm) rather than being mounted separately on the housing. The pressure receiving portion is formed directly on the diaphragm surface, eliminating the separate mounting structure and the associated space that caused liquid pool formation.
Solution Approach 2:
The pressure gauge mounting structure is extracted from the housing and transferred to the reciprocated member itself. This removes the problematic mounting hole and step structure from the housing, eliminating the source of liquid pool formation while maintaining pressure detection functionality.
2Measurement precision
If the pressure gauge is mounted on the housing wall, then pressure detection is enabled, but particles mix into the fluid through the liquid pool, lowering fluid purity
Solution Approach 1:
The pressure detection function is merged with the reciprocated member by forming the pressure receiving portion directly on the diaphragm. This integration eliminates the liquid pool interface where particles could contaminate the fluid, while maintaining accurate pressure detection through direct contact with the diaphragm surface.
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 effectively prevents liquid pool formation in the pump chamber, ensuring the transferred fluid remains at excellent purity by integrating the pressure gauge with the reciprocated member, enhancing the pump's ability to handle fluids without contamination.
Implementation Method 1
the reciprocated member has flexibility and includes a membranous portion between the pressure receiving portion and the pump chamber
Data Source
AI summary
A reciprocating pump includes: a housing with a suction port and a discharge port; a reciprocated member disposed in the housing to form a pump chamber and reciprocable such that fluid is sucked into the pump chamber through the suction port and then discharged from the pump chamber through the discharge port; 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 pump chamber through the pressure receiving portion, and coupled to the reciprocated member to be reciprocated by the actuator integrally with the reciprocated member.