Self-heat-dissipation Pressure-reducing Valve with Turbine-driven Cooling
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Solution Overview
Problem
Existing pressure-reducing valves in petrochemical and coal-chemical industries face challenges with heat dissipation under high-temperature and high-pressure conditions, leading to issues like creep, oxidation, and cavitation, which shorten their service life and reduce production efficiency.
Innovation Solution
A self-heat-dissipation pressure-reducing valve design incorporating a heat-dissipation valve core with fins, a turbine-type heat dissipation device, and heat pipes, along with an air guide hood, allows for internal heat dissipation using the valve's structure, enhancing heat conduction and reducing pressure through wind energy generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If external cooling methods (water cooling or air cooling) are used to dissipate heat from the valve, then the valve temperature can be reduced, but the device complexity increases and external power sources are required
Solution Approach 1:
The valve utilizes its own kinetic energy from the flowing medium to drive the turbine, which in turn drives the heat dissipation fins. This self-powered mechanism eliminates the need for external power sources and complex cooling systems, while effectively dissipating heat from the valve body through the rotating fins that interact with the surrounding air.
2Stress or pressure
If the valve operates under high-temperature and high-pressure conditions, then the pressure-reducing function is maintained, but the service life shortens due to creep, oxidation, and cavitation
Solution Approach 1:
The invention converts the kinetic energy of the high-velocity flowing medium (which contributes to cavitation damage) into useful work by driving the turbine. This not only reduces the direct harmful impact of the high-velocity flow on the valve components but also powers the heat dissipation system, thereby extending the valve's service life under high-temperature and high-pressure conditions.
3Stress or pressure
If the throttle part is exposed to high temperatures for extended periods, then the pressure-reducing function is maintained, but the throttle part loses pressure adjusting function due to cavitation and abrasion
Solution Approach 1:
The turbine-driven heat dissipation fins begin dissipating heat from the throttle part as soon as the valve operates under high-temperature conditions. This preliminary cooling action prevents the throttle part from reaching temperatures that would cause cavitation and abrasion, thereby maintaining its pressure adjusting function and reliability throughout operation.
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 solution effectively prolongs the service life of the valve by rapid heat dissipation, reducing maintenance and repair costs, and maintaining production efficiency by utilizing the valve's structure to dissipate heat without external power.
Implementation Method 1
a turbine-type heat dissipation device... The turbine-type heat dissipation device is fitted on an inlet pipeline at a side of the valve body
Implementation Method 2
the valve core heat-dissipation fins being fitted on the tail of the valve core... achieve a desirable heat dissipation effect
Implementation Method 3
enhancing heat conduction and reducing pressure through wind energy generation
Data Source
AI summary
A self-heat-dissipation pressure-reducing valve includes: a heat-dissipation valve core, an upper valve deck, a guiding valve deck, a valve body, a heat-dissipation valve seat, an air guide hood, and a turbine-type heat dissipation device. The heat-dissipation valve core is formed by a valve core composed of a heat pipe, and valve core heat-dissipation fins. The heat-dissipation valve seat includes a valve seat pocket, a valve seat shell, heat pipes, and valve seat heat-dissipation fins. An outer circumferential surface of the valve seat pocket is wound with multiple heat pipes fixed to the valve seat heat-dissipation fins. The turbine-type heat dissipation device includes a fan shell provided at a medium inlet, and a turbine. The turbine is lashed by a medium to turn the fan shell, and wind is guided in one direction through the external air guide hood to implement heat dissipation.