Pressure Oven: Working Principle and Structure

Industrial pressure ovens are widely used in manufacturing and precision processing scenarios, with their core advantages lying in rational heat dissipation design, stable pressure control, and optimized heating tube structure. This article elaborates on the working principle and key structures of pressure ovens, explaining how they ensure operational safety, cabinet protection, and consistent processing performance.

I. Working Principle of Pressure Oven

The heat dissipation system is a core component of such ovens, specifically designed to prevent damage to cabinet panels caused by excessive heat. The front air vents of the pressure oven quickly expel heat generated by the heating elements from the front end, avoiding direct thermal impact on surrounding cabinet materials and maintaining structural integrity.

Some high-end models adopt three-way heat dissipation technology, where the three sets of air vents are all located above and on both sides of the oven door, still belonging to front-end heat dissipation. This advanced design further enhances heat dissipation efficiency while maintaining the pressure oven’s aesthetic integration with integrated kitchen or workshop cabinetry.

Professional built-in pressure ovens are also equipped with an intelligent delayed heat dissipation system. Specifically, after the pressure oven stops working, the heat dissipation system continues to operate for a period to fully release residual heat. Therefore, it is not recommended to cut off the power immediately after use; allow the system to complete post-operation heat dissipation. For optimal cabinet protection, avoid pressure ovens with air vents on the side walls or back, as high-quality industrial pressure ovens are engineered to prevent cabinet deformation and discoloration.

II. Core Structures of Pressure Oven

1. Pressure Relief Valve Structure

The pressure relief valve is crucial for maintaining stable internal pressure of industrial pressure ovens, consisting of a door, inner tank, pressure relief pipe, weight hammer, and lever. The air inlet end of the pressure relief pipe passes through the oven door and connects to the inner tank, while the air outlet end is located outside the door to ensure safe pressure release.

The weight hammer rests freely on the air outlet end of the pressure relief pipe. The lever is sleeved on the pressure relief pipe and can rotate relative to it, featuring a first contact, a second contact, and a lifting part—with the lifting part positioned below the weight hammer. Both the first and second contacts can drive the lever to rotate when moved. This rational structural design integrates the pressure relief valve into the oven door, facilitating the pressure oven’s integration into integrated kitchens or industrial workspaces and enhancing overall aesthetics and practicality.

2. Heating Tube Structure

The heating tube structure directly affects the heating uniformity and cleaning convenience of these ovens, comprising an inner tank and high-efficiency heating tubes. The heating tubes are fixedly installed on the back of the inner tank, with one set suspended above the inner tank to ensure even heat distribution.

Hook bodies extend from both sides of the lighting lamp mounted on the top of the inner tank, securing the heating tubes suspended above. Another set of heating tubes is suspended at the bottom of the inner tank, fixed by hooks installed on both side walls of the inner tank. This optimized design enhances heat distribution consistency, and the one-piece stretched inner tank boasts high structural strength, no gaps, and easy cleaning—further improving the pressure oven’s usability, durability, and maintenance efficiency.