Nitrogen purge / Nitrogen supply work for pressure resistance airtightness testing / Nitrogen gas supply for P vehicles
Nitrogen purge vehicles will perform nitrogen replacement for various tanks and pipelines using nitrogen cartridges, as well as nitrogen supply work for blowing inside pipes and pressure-tightness tests.
1. Supply by large purge vehicle Nitrogen gas will be supplied to the target equipment by a vehicle loaded with a liquid nitrogen tank, gas evaporator, and booster pump for low-temperature liquefied gas. Note 1) As it is a large vehicle, please confirm the transportation route and installation space. Note 2) The photo shown is of a trailer type, but there are also tanker truck types available. 2. Supply by small purge vehicle For sites that need to gather a number of nitrogen cylinders but do not require a large purge vehicle, nitrogen gas will be supplied to the target equipment by a vehicle loaded with liquid nitrogen cylinders and a gas evaporator. Note 1) Refueling with liquid nitrogen on-site is not possible. 3. Supply by separate evaporator This is a separate type gas evaporator. It is a facility that supplies nitrogen gas by connecting a nitrogen tanker truck. When using nitrogen gas in large quantities for extended periods in flammable liquefied gas storage tanks or heavy oil tanks, supply can be maintained simply by swapping out the nitrogen tanker truck. Additionally, as it is a mobile facility, installation can be performed solely through lifting and lowering operations with a crane truck. Note 1) Space for the evaporator and tanker truck is required. Note 2) When supplying for extended periods, heating equipment for defrosting will be necessary.
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basic information
1. Supply by large purge vehicle ◆ Maximum operating pressure: up to 20.0 MPa (pump pressurization) ◆ Evaporator capacity: up to 1000 N㎥/h ◆ Power supply: Compatible with engine generators ◆ Gas purity: 99.99% or higher / Dew point below -70°C (at atmospheric pressure) ◆ Load capacity: 3000㎥ (varies by vehicle) ◆ Installation and removal: Mobile (vehicle type), no special equipment or work required 2. Supply by small purge vehicle ◆ Maximum operating pressure: 2.2 MPa (cylinder self-pressure) ◆ Evaporator capacity: 500 N㎥/h ◆ Power supply: Not required ◆ Gas purity: 99.99% or higher / Dew point below -70°C (at atmospheric pressure) ◆ Load capacity: 1000㎥ (no local replenishment possible) ◆ Installation and removal: Mobile (vehicle type), no special equipment or work required 3. Supply by separate evaporator ◆ Maximum operating pressure: up to 3.0 MPa ◆ Evaporator capacity: 500 N㎥/h to 1000 N㎥/h ◆ Power supply: Not required ◆ Installation and removal: Requires hoisting and lowering by crane vehicle
Price range
Delivery Time
Applications/Examples of results
- Purging work for LNG storage tanks at thermal power plants (nitrogen generation system + purging vehicle supply) - Purging work for heavy oil tanks (nitrogen generation system + purging vehicle supply) - Purging work associated with furnace replacement (nitrogen generation system + purging vehicle supply) - Purging work for LNG tanks (purging vehicle supply) - Purging work during crude oil tank opening inspection/internal cleaning (nitrogen generation system or purging vehicle supply) Others
Detailed information
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Supply by large purge vehicles
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Supply by small purge vehicles.
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Supply by separate evaporator.
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Supply by separate type evaporator < Switching supply image >
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Supply by small purge vehicles.
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Supply by small purge vehicles.
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Company information
Tohoku Nihon Iwatani Gas Co., Ltd. is a high-pressure gas direct sales company focused on the cylinder business within the Iwatani Group's industrial gas operations. We are developing various businesses closer to the market. We have sales bases nationwide, primarily dealing with various high-pressure gases such as oxygen gas, nitrogen gas, argon gas, carbon dioxide gas, hydrogen gas, helium gas, and cutting gas developed for hydrogen applications, known as Hydrocut. We have established a rapid supply and safety system rooted more deeply in the local community.
