The function of elliptical manhole

Elliptical manhole is a specially designed manhole widely used in the industrial field, with various unique functions and advantages. The following are its main functions and characteristics:

Structural and mechanical advantages

Stress dispersion: The design of elliptical manholes can better disperse pressure and avoid damage caused by sudden changes in temperature or pressure. Its short axis is usually parallel to the axis of the cylinder, because the circumferential stress is twice the radial stress, and this arrangement can reduce the weakening of circumferential stress.

Space adaptability: Compared to circular manholes, elliptical manholes can better adapt to spatial layout and improve space utilization in certain specific civil structures.

Functions and Applications

Easy access for personnel: The design of the elliptical manhole increases the opening area, making it convenient for operators to enter the equipment for maintenance, while also reducing space occupation.

Quick opening and maintenance: Many oval shaped manholes adopt a quick opening design, such as an inward opening oval shaped manhole, which can be easily opened and closed with a gentle press or twist, greatly improving work efficiency.

Hygiene and Cleaning: In industries such as food and pharmaceuticals, the oval shaped manhole with an inward opening design can prevent external dust and impurities from entering, ensuring the cleanliness of the equipment interior and meeting strict hygiene standards.

Safety protection: Elliptical manholes are usually used in conjunction with fire extinguishers and other equipment to prevent sudden increases in pressure or vacuum damage inside the tank caused by accidents, thus playing a role in safety and fire prevention.

Application scenarios

The food, brewing, beverage, and pharmaceutical industries: Elliptical manholes are widely used in storage tanks and reactor equipment in these industries, and their sanitary design and quick opening characteristics can meet strict hygiene requirements.

Chemical and petroleum industries: In these industries, the corrosion resistance and pressure resistance of elliptical manholes make them ideal maintenance and repair channels.

Municipal engineering: Elliptical manholes are also suitable for pipeline maintenance and inspection in municipal engineering, such as drainage systems, underground pipelines, etc.

Materials and Manufacturing

Material selection: Elliptical manholes are usually made of materials such as stainless steel (such as 304, 316L) or carbon steel, which have good corrosion resistance and durability.

Surface treatment: Its inner and outer surfaces are usually polished or matte treated to improve cleanliness and aesthetics.