Smart Valve Remote Control Using In-Pipe Hydropower
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Solution Overview
Problem
Existing small hydroelectric power generation systems for water supply and sewage pipes are inefficient in utilizing hydraulic power due to the design of rotating wheels and rotors, and remote control of gate valves is challenging, especially in remote locations.
Innovation Solution
A self-powered remote control system for smart valves that includes a power generation module using a conical fluid guide member and rotating member to generate power from water flow rates of 1.2 Mpa to 1.4 Mpa, combined with a sensing module for detecting fluid flow rate, pressure, and temperature, and a control module for remote operation of the valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a conventional rotating wheel with flat plate blades is used in small hydroelectric power generation, then the device can be installed in water supply pipes, but the hydraulic power utilization efficiency is insufficient
Solution Approach 1:
The patent replaces the conventional flat plate blade design with a curved vane structure. The vane has a specific curvature radius (R1 at the leading edge, R2 at the trailing edge) that optimizes the flow path and increases the impulse force from the water jet, thereby improving hydraulic power utilization efficiency while maintaining structural simplicity.
Solution Approach 2:
The patent optimizes key geometric parameters of the rotating wheel, including the vane curvature radius (R1=0.03-0.05m, R2=0.01-0.03m), the angle between the vane and radial direction (15°-45°), and the number of vanes (3-7). These parameter changes maximize the conversion of hydraulic energy to rotational mechanical energy.
2Adaptability or versatility
If gate valves are installed in remote locations for water control, then the coverage area is expanded, but remote control operation becomes challenging
Solution Approach 1:
The patent replaces manual mechanical operation of gate valves with an automated control system. The system uses a controller to drive the valve opening/closing mechanism, enabling remote operation through electrical signals rather than direct mechanical manipulation, thus solving the accessibility issue in remote locations.
Solution Approach 2:
The patent implements a self-powered control system where the hydroelectric power generation module provides electrical energy to operate the gate valve automatically. The system detects water flow conditions and autonomously controls valve operation without requiring external power supply or manual intervention, achieving self-service operation in remote areas.
3Power
If power generation modules are integrated into water supply pipes, then self-powered energy is generated, but the pipe flow characteristics may be affected
Solution Approach 1:
The patent divides the water flow path into separate zones: a main flow channel that allows uninterrupted water supply, and a dedicated power generation channel with the rotating wheel. The water jet is directed onto the vanes through nozzles, extracting only a portion of the flow energy while maintaining adequate flow rate in the main channel, thus balancing power generation with water supply productivity.
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
Enables efficient power generation and remote control of smart valves, allowing for wireless communication and operation of valves in multipurpose waterways, reservoirs, and skyscraper systems, applicable to irrigation systems and sewage treatment plants, with enhanced sealing and reduced leakage.
Implementation Method 1
a power generation module configured to generate power according to the flow of the fluid... a rotating member rotated according to the fluid guided to the fluid guide member
Implementation Method 2
a sensing module configured to detect a flow rate, pressure, or temperature of the fluid in the pipe
Implementation Method 3
allow wireless communication for sensor data... and remote control
Data Source
AI summary
The present invention relates to a self-powered remote control system for a smart valve, the system comprising: a smart valve for regulating the flow of a fluid in a pipe; a sensing module for sensing the flow rate, pressure, and temperature of the fluid in the pipe; a power generation module for generating power according to the flow of the fluid; a control module for controlling the lifting or lowering of the opening/closing plate of the smart valve according to the flow rate, pressure, or temperature state sensed by the sensing module; and an administrator terminal for transmitting and receiving control signals to and from the control module, wherein the power generation module comprises: a conical fluid guide member provided in a direction in which the fluid is supplied; and a rotating member rotated by the fluid guided through the fluid guide member, whereby the operation of the smart valve can be controlled by manipulating the administrator terminal at a remote location, so as to supply the fluid into the pipe or intercept the supply of the fluid into the pipe.