Valve manifold for a pool environment control system
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Solution Overview
Problem
Existing pool environment control systems face challenges in efficiently managing multiple functions such as reheat, air-cooled condenser, and heat reclaim operations, often experiencing hammering and backflow issues due to abrupt valve actuation.
Innovation Solution
A multi-mode valve manifold system with soft-start electronic solenoid valves and primary electric solenoid valves, controlled by a processor, which gradually opens and closes valves to minimize hammering and backflow, allowing for parallel flow paths and isolation capabilities for each branch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional electric solenoid valves are used for rapid valve actuation, then response time is improved, but hammering and backflow issues occur
Solution Approach 1:
The soft-start electronic solenoid valve gradually opens the valve from a closed position over a predetermined time period before full opening, preventing water hammer and backflow by avoiding abrupt valve actuation. This preliminary gradual opening action eliminates the sudden pressure changes that cause hammering while still achieving rapid response when needed.
Solution Approach 2:
The system dynamically switches between soft-start mode (gradual opening) and rapid opening mode based on operational requirements. The soft-start electronic solenoid valve provides dynamic control by adjusting the opening speed, allowing the system to adapt to different operational conditions and eliminate hammering during normal operation while maintaining rapid response capability when necessary.
2Adaptability or versatility
If multiple functions (reheat, ACC, heat reclaim) are integrated in one system, then system versatility is improved, but device complexity increases
Solution Approach 1:
The valve manifold is segmented into separate branches for different functions (reheat branch with reheat soft-start electronic solenoid valve, ACC branch with ACC soft-start electronic solenoid valve, and heat reclaim branch with reclaim soft-start electronic solenoid valve). Each branch can be independently controlled and isolated, simplifying the overall system management while maintaining multiple functions. The segmentation allows each function to operate independently without interfering with others.
Solution Approach 2:
The valve manifold system provides multi-functionality by integrating reheat, air-cooled condenser (ACC), and heat reclaim operations into a single unified system. The soft-start electronic solenoid valves serve multiple purposes: they control fluid flow for different functions, provide soft-start protection for each branch, and enable isolated operation of individual functions. This universal design allows one system to perform multiple functions without proportionally increasing complexity.
3Object-affected harmful factors
If soft-start electronic solenoid valves are used, then hammering is reduced, but valve response time increases
Solution Approach 1:
The soft-start electronic solenoid valve implements periodic action by gradually opening the valve in stages over a predetermined time period. Instead of instantaneous opening, the valve opens progressively, allowing the fluid system to adjust gradually. This periodic opening action eliminates water hammer while the overall response time remains acceptable because the gradual opening occurs over a controlled, predetermined duration rather than indefinitely.
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 system effectively reduces hammering and backflow, enabling efficient operation in reheat, air-cooled condenser, and heat reclaim modes, with the ability to isolate branches for maintenance, enhancing overall system performance and reliability.
Implementation Method 1
gradually opens and closes valves to minimize hammering and backflow
Implementation Method 2
soft-start electronic solenoid valve configured to selectively provide fluid flow
Data Source
AI summary
A pool environment control system may include a reheat branch including a reheat soft-start electronic solenoid valve configured to fluidly couple to a compressor, a reheat primary electric solenoid valve configured to fluidly couple to the compressor, and a reheat check valve fluidly coupled to the reheat soft-start electronic solenoid valve and the reheat primary electric solenoid valve, the reheat check valve configured to provide fluid communication with a reheat system. A pool environment control system may include an air-cooled condenser (ACC) branch including an ACC soft-start electronic solenoid valve fluidly coupled to the compressor, an ACC primary electric solenoid valve fluidly coupled to the compressor, and an ACC check valve fluidly coupled to the ACC soft-start electronic solenoid valve and the ACC primary electric solenoid valve, the ACC check valve configured to provide fluid communication with an ACC system.