Nan'an Foam Mobile Toilet Design
The design of the Nan'an foam mobile toilet is based on the general concept of foam-based toilets, with energy conservation and environmental protection as its core, achieving efficient fecal treatment and low resource consumption through innovative technology.
Core Devices and Working Principles
The core devices of this toilet include a foam generator, a liquid storage tank, and a liquid level balancing tank, which utilize the U-tube principle to stabilize the foam liquid volume. Compressed air is mixed with a foaming agent to generate a long-lasting foam layer that covers the toilet bowl surface, utilizing the high lubricity and sealing properties of the foam to achieve fecal flushing and odor blocking. The foam blocks the sewage outlet to form the first barrier, while a flexible sealing device provides secondary sealing, effectively reducing odor diffusion and visual interference through this dual mechanism.
Water and Energy Conservation and Environmental Protection Technologies
The foam mobile toilet replaces traditional water flushing with a foaming agent, consuming only about 0.04 liters of water per person and no more than 0.2 kilowatt-hours of electricity per day, demonstrating significant water and energy conservation effects. A utility model patent in 2024 further optimized the technology by proposing a water-free foaming technology that integrates a fecal biochemical processor, utilizing microbial bacteria to decompose feces and construct a circulating water system, achieving a water conservation rate of over 99%. The volume increase of emissions is minimal, reducing the frequency and cost of waste removal.
Structural Design and Applicable Scenarios
The equipment is constructed using lightweight materials, facilitating easy movement and installation, making it suitable for locations without drainage facilities, such as scenic spots and construction sites. It operates stably across a wide temperature range, from -40℃ to 50℃, adapting to extreme climatic conditions. The toilet bowl design focuses on user experience, with foam covering waste to reduce odors and simplify cleaning.
Intelligent Control System
The system is typically automatically controlled by a microcomputer for operations such as foaming, lighting, and ventilation, ensuring stable and efficient operation. The liquid level balancing tank continuously monitors the foam liquid volume to avoid resource waste; the ventilation system works in conjunction with foam blocking to further optimize air quality.
Maintenance and Cost Advantages
Due to the lubricating effect of the foam, the toilet bowl and sewage pipes are less prone to blockage, resulting in low maintenance costs. The low emission volume design extends the waste removal cycle, making it suitable for areas with high foot traffic but limited infrastructure. The overall design balances environmental protection needs with economic efficiency, serving as an energy-saving solution for modern public facilities.
