Spraying System Backflow Branch Design to Reduce Water Pump Cycling
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Solution Overview
Problem
The frequent turning on and off of the water pump in intermittent spraying modes for air conditioner outdoor units leads to faults and a shortened service life due to continuous operation under normal conditions.
Innovation Solution
A spraying system with a solenoid valve-controlled backflow branch that allows liquid to flow back into the water outlet device, reducing the need for frequent pump operation and improving water supply pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If intermittent spraying mode is used to ensure water conservation, then water usage efficiency is improved, but the water pump needs to be turned on and off frequently which shortens its service life
Solution Approach 1:
The patent introduces a backflow branch as an intermediary component that allows liquid to flow back into the water outlet device. This backflow mechanism acts as a mediator that maintains system pressure and enables intermittent spraying without requiring frequent pump cycling, thus protecting the water pump while achieving water conservation
Solution Approach 2:
The patent divides the liquid flow path into separate segments: a spraying branch for water delivery and a backflow branch for liquid return. This segmentation allows independent control of spraying and pressure maintenance functions, enabling the system to achieve intermittent spraying with a continuously running pump, thereby resolving the contradiction between water conservation and pump reliability
2Loss of substance
If intermittent spraying mode is used to improve water conservation, then water usage efficiency is improved, but the frequency of pump operation increases leading to more faults
Solution Approach 1:
The patent maintains continuous operation of the water pump while achieving intermittent spraying through the backflow branch mechanism. This ensures continuous useful action of the pump without frequent start-stop cycles, maintaining both water conservation and reliable cooling performance
3Manufacturing precision
If solenoid valve is added to control spraying branch and backflow branch, then spraying control precision is improved, but device complexity increases
Solution Approach 1:
The solenoid valve in the patent is designed to perform multiple functions: controlling the spraying branch and controlling the backflow branch. This multi-functionality reduces the need for separate control valves and simplifies the overall system structure while maintaining precise spraying control
Solution Approach 2:
The patent uses a dynamically controllable solenoid valve that can adjust its state based on system requirements, enabling precise control of both spraying and backflow operations. This dynamic control achieves high spraying precision without requiring multiple static control components, thereby limiting the increase in device complexity
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 ensures a prolonged service life of the water pump and maintains effective spray cooling while operating in a water conservation mode by minimizing pump cycling and preventing temperature rises.
Implementation Method 1
A solenoid valve is arranged in the spraying branch and/or the backflow branch, and the solenoid valve is configured to control turning on and turning off of the spraying branch and/or the backflow branch
Implementation Method 2
When the backflow branch is turned on, the liquid flowing out of the water outlet device flows into the water outlet device through the backflow branch
Implementation Method 3
a nozzle; a water outlet of the water outlet device, the spraying branch and the nozzle are communicated sequentially
Data Source
AI summary
A spraying system, a method and an apparatus for controlling the spraying system, an electronic device, a computer-readable storage medium, and an air conditioner are provided. The spray system includes a water outlet device, a spraying branch, a backflow branch, and a nozzle; a water outlet of the water outlet device, the spraying branch, and the nozzle are communicated sequentially; a solenoid valve is arranged in the spraying branch and/or the backflow branch, and the solenoid valve is used for controlling turning on and turning off of the spraying branch and/or the backflow branch; when the spraying branch is turned on, liquid flowing out of the water outlet device flows out of the nozzle through the spraying branch; when the backflow branch is turned on, the liquid flowing out of the water outlet device flows into the water outlet device through the backflow branch.