Cyclic Condensate Pump Three-Way Valve Piston Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional condensate pumps with spring-loaded mechanisms and plug-and-seat valves are costly to fabricate and maintain, with limited port sizes and large float sizes due to high operational forces, limiting their efficiency and scalability.
Innovation Solution
A condensate pump design utilizing a piston action mechanism with a three-way valve and a secondary piston that responds to a liquid level sensor, eliminating the need for spring-loaded mechanisms and allowing larger port sizes, reducing maintenance costs and improving cycling times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a spring-loaded mechanism with plug-and-seat valves is used, then the pump can operate with conventional design, but the fabrication and maintenance costs increase and the port sizes are limited
Solution Approach 1:
The patent replaces the spring-loaded mechanical mechanism with a piston action system. The piston moves within a cylinder to open and close valves, eliminating the need for complex spring assemblies while reducing fabrication and maintenance costs. This mechanical substitution directly addresses the contradiction by simplifying the overall device complexity while maintaining operational functionality.
Solution Approach 2:
The invention extracts and removes the spring-loaded mechanism from the pump design entirely. By taking out this complex component, the patent reduces both fabrication and maintenance costs while simplifying the overall structure. The removal of this problematic element allows for larger port sizes and reduces the float size requirements.
2Weight of moving object
If a spring-loaded mechanism is used, then the pump can be designed conventionally, but the float size must be large due to high operational forces
Solution Approach 1:
The piston action mechanism replaces the spring-loaded system, significantly reducing the operational forces required to open and close valves. This substitution allows for a much smaller float size while maintaining effective operation, directly resolving the contradiction between float size and operational force requirements.
3Productivity
If conventional plug-and-seat valves are used, then the pump design is standard, but the port sizes are limited and cycling times are extended
Solution Approach 1:
The piston action mechanism provides dynamic control of valve opening and closing, allowing for larger port sizes and faster cycling times. The piston can be positioned to optimize flow characteristics, enabling the system to achieve both larger port areas and reduced cycling times compared to conventional static plug-and-seat valves.
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 reduces fabrication and maintenance costs, enables larger port sizes for faster cycling and larger condensate reservoirs, and minimizes the size of the liquid level sensor, resulting in a more efficient and reliable condensate pumping system.
Implementation Method 1
a three-way valve preferably including a secondary piston that is slidably supported in a secondary cylinder. The secondary piston slides in the secondary cylinder responsive to the liquid level sensor
Implementation Method 2
an inlet check valve operable to prevent a flow of fluid out of the condensate reservoir through the fluid inlet and to allow a flow of fluid into the condensate reservoir through the fluid inlet
Implementation Method 3
an outlet check valve operable to prevent a flow of fluid into the condensate reservoir through the fluid outlet and to allow a flow of fluid out of the condensate reservoir through the fluid outlet
Data Source
AI summary
A condensate pump includes a condensate reservoir, a liquid level float sensor operable to sense a liquid level within the condensate reservoir, and a pressure/vent valve including a pressure source, a pressure vent, and a primary piston slidably supported in a primary cylinder and sliding in the primary cylinder responsive to the liquid level sensor. A secondary piston is slidably supported in a secondary cylinder and moves responsive to a movement of the primary piston between a first secondary-piston position wherein the pressure source is in communication with a gas space of the condensate reservoir and the pressure vent is isolated from the gas space, and a second secondary-piston position wherein the pressure source is isolated from the gas space and the pressure vent is in communication with the gas space. An aperture in the primary piston and passages may also be provided to prevent build-up of gas pressures and maintain pressures in preselected regions within the pump at atmospheric pressures.