Onboard Train Vacuum Toilet System

The electric onboard Train vacuum toilet system is a high-efficiency and environmentally friendly sanitary treatment system specially designed for railway and EMU vehicles. Different from the traditional pneumatic vacuum maintaining system widely adopted in China’s railway industry, this product adopts full electric drive to realize automatic and intelligent operation of the whole system. It is perfectly adapted to the narrow and compact installation environment of train carriages, covering all sanitary collection and treatment demands of train toilets.

The complete system consists of vacuum sitting toilets, vacuum squat toilets, vacuum urinals, onboard vacuum pump stations, water pressurizing units, system control boxes, intelligent battery chargers, atmospheric sewage tanks and matching connecting pipelines. All functional units operate automatically without manual intervention, realizing unmanned intelligent work mode.

1. Core Advantages and Characteristics

• Zero Sewage Discharge, Eco-friendly Operation

All sewage and dirt produced by vacuum toilets and urinals is centrally collected by the vacuum workstation and transported to the on-board atmospheric sewage tank for unified storage and subsequent centralized treatment. The system completely avoids direct sewage discharge, effectively protecting the ecological environment along railway lines and meeting strict railway environmental protection operation standards.

• Gravity-independent Discharge, Flexible Installation

Relying on vacuum negative pressure for dirt conveying, the system pipelines are not restricted by gravity height difference and installation slope. With small pipe diameter and flexible layout, it solves the layout difficulty caused by the ultra-compact internal space of train carriages, greatly simplifying construction and installation work and improving space utilization rate.

• Water-saving and Odor-free, Excellent User Experience

The system features extremely low water consumption. The single flushing water volume is only 0.5 to 1 liter (adjustable), which is far lower than the 6 liters per flushing of traditional water-flushing toilets, achieving remarkable water-saving effects. Adopting vacuum negative pressure physical deodorization technology, it isolates peculiar smell thoroughly. The toilet space can maintain permanent freshness even after long-term and frequent use.

• Dirt Crushing Design, Anti-clogging and High Fault Tolerance

Integrating vacuum generation, dirt crushing and pressure discharge functions into one system, the onboard vacuum toilet system can fully crush sundries and excrement during operation. It effectively prevents pipeline blockage, reduces equipment failure rate, improves operational stability and has strong fault tolerance for complex use scenarios.

• Modular Design, Strong Adaptability

The whole system adopts standardized modular integrated design. Each functional module is independent and compact in structure, which efficiently solves the installation problem in the narrow space of train carriages. The modular structure is convenient for quick installation, later inspection, maintenance and replacement, reducing vehicle operation and maintenance costs.

2. Operating Principle

The onboard vacuum pump station generates stable negative pressure vacuum environment for the whole system. When the toilet is flushed, the water pressurizing unit provides high-pressure cleaning water source. Under the action of vacuum negative pressure, the dirt is quickly sucked into the pipeline and crushed, and finally delivered to the special sewage tank for sealed storage. The whole process is automatically controlled by the system control box, with stable operation, low noise and no secondary pollution.

3. Product Highlights

Compared with the traditional pneumatic vacuum maintaining system, the electric onboard vacuum toilet system features more stable power output, more accurate intelligent control, lower failure rate and simpler later maintenance. As a new-generation environmentally friendly sanitary system suitable for high-speed trains, EMUs and various passenger railway vehicles, it delivers outstanding comprehensive performance in environmental protection, energy saving, operational stability and structural applicability.