Examples of biogas fermentation tank systems are also provided. High safety measures for gas and chemical transfer leakage prevention.
At P&D Japan, we handle "corrugated type stainless steel piping" characterized by high safety. 1. Single piping - The temperature of hot water passing through the piping (above 40 degrees) is transmitted through thermal conduction → fermentation progresses. - The piping is spiral-shaped → it has a larger surface area and is easier to transmit heat. - Despite being made of iron, it is flexible. ⇒ In addition to contributing to the progress of fermentation, it is suitable for fermentation tanks and is utilized in "effective heating systems for biogas fermentation tanks." (Examples are summarized in the PDF. Please download it.) 2. Double piping - Supports the transport of toxic liquids and gases, such as harmful chemicals specified by the Water Pollution Control Act. - Can be delivered in the required lengths, eliminating the need for fittings. - Utilizes the gap between the primary and secondary pipes for leak detection and prevention. - High-spec design that can be utilized in facilities where operational downtime due to external factors must be absolutely avoided. ⇒ Used in data centers and other applications. ■ Adoption results Teijin DuPont Film Co., Ltd., NEXCO, and others. *For more details, please download the PDF.
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■Purpose of Using Double Piping The main reason for using double piping is to utilize the gap between the primary and secondary pipes to prevent (detect) leaks. In recent years, leakage issues have arisen in various fields, becoming a social problem, which has significantly changed the perspective on the environment. ■Leak Prevention (Detection) System Air or nitrogen is pressurized and filled between the primary and secondary pipes (sleeve pipes), and based on this pressure state, the leak detection device can identify whether the level is decreasing (due to natural reduction or an abnormal occurrence). If an anomaly (leak) is detected, an alarm sounds, enabling early detection of leaks. This system allows for constant monitoring, ensuring safe facility operations. Additionally, leak detection can be performed not only for double pipes but also for double-walled tanks (underground tanks) and above-ground tanks. This leak detection system comes in both pressurized (pressure) and reduced pressure (vacuum) types, and various system types can be proposed based on the installation conditions.
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P&D Japan Co., Ltd. is a company that primarily engages in the import and sale of resin piping for underground installation (UPP system piping) and environmental-related products. Our goal is to reduce costs for companies operating gas stations in Japan while providing the safest and highest quality resin piping. We also offer world-standard safety to many in Japan, including domestic oil wholesalers.