Hydraulic Gate Valve Pressure Control for Pipe Network Safety
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Solution Overview
Problem
Existing pipe network safety devices fail to effectively regulate hydrodynamic pressure, leading to negative pressure issues and inaccurate pressure readings due to elevation differences between water supply devices and networks, resulting in unreliable water supply and high failure rates.
Innovation Solution
A safety device comprising a gate valve with a hydraulic cylinder and energy storage air pressure tank, where the gate valve opens and closes based on set pressure values, ensuring pressure safety and automatic flow adjustment without external interference, and is designed to operate independently of installation elevation differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a steady flow tank plus vacuum suppressor is used as pipe network safety adjusting device, then the device structure is established, but the pipe network protection function cannot be achieved due to water seal effect and negative pressure formation
Solution Approach 1:
The patent removes the steady flow tank and vacuum suppressor from the system, replacing them with a pressure sensor and control valve directly connected to the pipe network. This extraction eliminates the water seal effect that prevented the vacuum suppressor from functioning and allows direct monitoring and control of pipe network pressure.
Solution Approach 2:
The patent replaces the mechanical steady flow tank and vacuum suppressor system with an automated control system using pressure sensors, control valves, and electronic controllers. This substitution enables precise pressure monitoring and active prevention of negative pressure conditions through automated valve control.
2Reliability
If pressure sensor and control valve are used for active pressure control, then pressure safety is improved, but device complexity increases
Solution Approach 1:
The pressure sensor and control valve are integrated into the existing pipe network infrastructure, serving multiple functions: monitoring pressure, preventing negative pressure, controlling water flow, and protecting the pipe network. This multi-functionality reduces the need for separate dedicated components.
Solution Approach 2:
The control system operates autonomously using the pressure sensor to detect pressure conditions and automatically activate the control valve to maintain proper pressure levels. The system self-regulates without requiring external intervention or complex manual control mechanisms.
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 device ensures continuous and energy-efficient water supply by maintaining pressure safety and flow adjustment within set limits, preventing negative pressure and low-pressure areas, and enhancing operational reliability and safety compared to prior art.
Implementation Method 1
a hydraulic cylinder, wherein the hydraulic cylinder comprises a cylinder body, a piston and a piston rod; the piston rod is connected to the gate; the lower part of the inner cavity of the cylinder body is connected to the water inlet pipeline through a gate opening power pipeline
Implementation Method 2
the upper part of the inner cavity of the cylinder body is connected to a gate closing driving device, which is used to drive the gate and close the gate valve
Data Source
AI summary
A safety device for hydrodynamic pressure regulating pipe network includes a gate valve, which comprises at least a valve body and a gate. A water inlet of the gate valve is used to be connected to a water inlet pipeline. A hydraulic driving device, which comprises a hydraulic cylinder, is also included. The hydraulic cylinder includes a cylinder body, a piston and a piston rod. The piston rod is connected to the gate. The lower part of the inner cavity of the cylinder body is connected to the water inlet pipeline through a gate opening power pipelines. The upper part of the inner cavity of the cylinder body is connected to a gate closing driving device, which is used to drive the gate and close the gate valve.