Technical development


Toward more safe and secure products

Toward more safe and secure productsTokyo Gas delivers gas with reliable technology that provides customers with safe, secure and comfortable lives. Also, Tokyo Gas focuses on the development of disaster prevention systems for emergencies such as earthquakes.

Basic Design of LNG Receiving Terminal Tokyo Gas designs the base while utilizing its years of experiences in the operation and maintenance of LNG receiving bases.
Technology of Operation & Maintenance for LNG Terminals Tokyo Gas has know-how and technology related to operation and maintenance based on its years of experiences.
Equipment Diagnostic Technology for LNG Terminals Tokyo Gas develops and uses many suitable facility diagnosis technologies for the maintenance of LNG facilities.
Ultrasonic Flow Meter for Super-Low-Temperature Fluid A clamp-on type flow meter for ultra low temperature fluids that does not require a piping process for censor installation
Waterless-type LNG Sampling System A compact and automated gas collection system using an anhydrous holder for LNG composition analysis
New Type of In-ground LNG StorageTank Offering Improved Economy, Reliability, and Safety A LNG underground tank with the world's largest capacity (250,000 KL) is under construction at the Ohgishima Plant.
Small-Size & Lightweight Submergible Observation Device for LNG Storage Tanks Tokyo Gas has commercialized a small scale and light weight monitoring system for fluid in LNG tanks. This system enables the inside of an LNG tank to be confirmed with visual representations.
Liquid Density Meter for LNG Tanks A system for measuring fluid density at each level in a tank to prevent rolling over
LNG-BOG Reliquefaction Technology A pressure rising process in which BOG is inexpensive. The process reliquefies BOG by cooling air in the LNG and increases pressure when under the fluid state.
LPG BOG Suppression System Utilizing LNG Cryogenic Energy The process for controlling BOG by reliquefying and super cooling LPG-BOG with LNG cooling air
Power Supply Technology for Submerged Pumps Applied to LNG Inground Tanks A connector which can disconnect and connect with a 6 kV cable which is also usable in LNG, pierce bushing and simple work
Vibration Diagnosis Systems for Rotation Machines A facility diagnosis system that detects trouble by always monitoring the vibration of rolling machines online
CFC-free Insulation for Cryogenic Use A new environmentally-friendly non-CFC refrigerant by carbon dioxide foaming
Open Rack LNG Vaporizer High-performance ORV which is able to realize cost reduction and the saving of space by optimally designing heat transfer efficiency
Hot Air Draft Super Heater with Air Fin LNG Vaporizer for Satellite Stations An airfin-type LNG vaporizer which realizes cost reduction and energy saving and is usable in cold regions.
DV&M Calorific Value Adjustment System A heat controlling method that controls heat amount by spraying LPG liquid into vaporized LNG
Safety / Disaster Prevention Analysis Software Security/disaster prevention analysis software for the PC, which can calculate the distribution of gas diffusive concentration and the intensity of radiation receiving heat
Development of the exclusive low-cost governor "REGIT Series" Tokyo Gas introduces the development of pressure reduction facilities to help bulk power customers use gas at a higher efficiency
Evaluation of Ground Restraint to Gas Pipelines during Earthquakes A series of full-scale experiment and analytical study enabled a precise evaluation of the ground restraint to gas pipelines due to ground motions with an equal seismic level as it was observed in the Great Hanshin Earthquake.
TS type gas circuit breaker Tokyo Gas introduces a new material shutoff system with improved shutoff performance and reduced drilling range
Underground pipe exploration equipment Tokyo Gas introduces a system which specifies the location of buried pipelines without drilling
Temporary backfill Eco-balls We reduce CO2 emissions by reducing the creation of backfill at the time of gas utility construction work.
An Emergency Operations Support System – EAGLE 24 The introduction of an integrated system that manages emergency operations such as gas leaks.
Laser Methane Detector Tokyo Gas introduces the latest model of portable and remote gas leak detectors
Gas recovery technology for replacing gas meters A simple and easy gas recovery method for replacing gas meters in high-rise condominiums and basements
Development of a gas smart meter system Developing a gas smart meter system that achieves one-to-one communication with customers
Ultrahigh Density Real Time Earthquake Disaster Prevention System – SUPREME Ultrahigh Density Real Time Earthquake Disaster Prevention System – SUPREME
Earthquake Information Dissemination System – The system disseminates earthquake information to employees without delay, while collecting information on their safety and mobilization.
Emergency Communication Host System (ECHO) Besides voice communications with the district offices, ECHO is equipped for collection, automatic totalization, and distribution of damage data by facsimile network as well as for automatic answering to inquiries from outside parties.
Advanced safety technology (gas leakage, diffusion, and explosion) We aim to achieve further advancements in our safety protection technologies through a deepened understanding of city gas leakage, diffusion, and explosion phenomena.
Ultrasonic gas meter for residence Introduction of the development of a smart gas meter in line with new communication technology
CalcRad:Three-Dimensional Radiation Analysis Code