Pipe Forming Nozzle Cooling for Hot Gas Discharge Heat Control
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Solution Overview
Problem
Existing forming systems face challenges in suppressing the influence of heat on members around the flow path when expanding metal pipe materials, as high-temperature gases released after forming can affect the flow path components.
Innovation Solution
A forming system that includes a gas supply portion to expand heated metal pipe materials, a nozzle with a feed port for gas supply, and a cooling unit to cool the high-temperature gas flowing through the discharge portion, reducing the cross-sectional area of the flow path to cool the gas and minimize heat influence on surrounding components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If gas is supplied to expand heated metal pipe material, then the metal pipe material can be expanded to form a metal pipe, but high-temperature gas is released that affects the flow path components
Solution Approach 1:
A cooling unit is introduced as an intermediary component between the high-temperature gas and the flow path members. The cooling unit includes a cooling passage through which cooling fluid flows, creating a thermal barrier that protects the flow path members from heat while allowing the gas expansion process to continue
Solution Approach 2:
The harmful heat energy is extracted from the gas flow path by separating it into two distinct paths: one for the high-temperature gas to expand the metal pipe material, and another for cooling fluid to remove the heat. This extraction of heat prevents it from affecting the flow path members
2Object-affected harmful factors
If cooling unit is added to cool the high-temperature gas, then heat influence on flow path members is suppressed, but device complexity increases
Solution Approach 1:
The cooling unit is merged with the existing nozzle structure. The cooling passage is integrated into the nozzle body, and the cooling unit shares space with the gas flow path. This merging allows the cooling function to be added without requiring a completely separate cooling system, thereby reducing 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 cooling unit effectively suppresses the heat influence on the flow path members by cooling the high-temperature gas, preventing damage and ensuring efficient operation of the forming system.
Implementation Method 1
a cooling unit to cool the gas flowing through the discharge portion and is provided in the nozzle
Data Source
AI summary
Provided is a forming system that expands a heated metal pipe material to form a metal pipe. The forming system includes a gas supply portion that supplies a gas to the heated metal pipe material to expand the metal pipe material, a nozzle that includes a feed port for supplying the gas, a discharge portion that discharges the gas after expanding the metal pipe material, and a cooling unit that cools the gas flowing through the discharge portion and is provided in the nozzle.