LNG air-heated vaporizer
LNG air-heated vaporizer
LNG air-temperature vaporizer is a new natural gas supply process. The entire system is composed of LNG cryogenic steel cylinders, air-temperature vaporizers, and a pressure regulating and metering system. Scope of application and characteristics of LNG cylinder group gasification station Scale of use: 1,000 to 5,000 households, small investment, short construction time, LNG storage tanks within 300 kilometers, low-temperature steel cylinders can be filled, and operating costs are low. Our business tenet: gas engineering, safety first; price is not the lowest, quality assurance first-class.
This series of gasifiers are tube-type, connected by star-shaped fin tubes. The unique "bridge" connection improves the gasification capacity and the flexibility of the equipment. The connection between the fins does not require welding, and the internal stress is small, and the structure is compact. , The arrangement is even, beautiful and durable.
The heat conduction tube of the air-temperature vaporizer is formed by extruding the heat sink and the pipe material, and the cross section of the heat conduction tube is a star-shaped fin. The air-heated vaporizer is composed of an evaporation part and a heating part. The evaporating part is composed of heat conduction pipes connected side by side with end plate tubes, and the heating part is composed of heat conduction pipes connected in series with elbow joints.
The main technical parameters
Working pressure: 0.1-40MPa
Applicable medium: LO2, LN2, LAr, LNG, LCO2, LC2H4, LPG, LNH3, LC3H8, etc.
Single vaporization capacity: 20—10000Nm3/h (larger vaporization capacity can be combined)
can produce various specifications of turbochargers and heaters according to user needs
Note: Larger flow, longer continuous full-load operation, can be obtained by using multiple units in parallel or switching between multiple units;
Design conditions: temperature -10°C, relative temperature 70%, continuous use 8-12 hours of vaporization.
Star-shaped finned tube
The star-shaped fin tube is the core component of the vaporizer, which is the wrong way to absorb heat and vaporize. The material of the fin tube is rust-proof aluminum. The fin tube of the fin tube usually has 8 fins and 12 fins. Finned tube The outer diameter mainly consists of two specifications, φ160mm and φ200mm, and φ200mm is usually used for large-scale vaporization.
Material and technology
All parts are made of aluminum alloy and stainless steel with excellent oxidation resistance and high performance. The high-pressure connection between the stainless steel core tube and the fin is tight. Before leaving the factory, they are dried with nitrogen in accordance with oxygen standards to ensure product quality and safer use.
LNG air-heated vaporizer uses natural convection of air to heat the low-temperature liquid in the heat exchange tube to completely evaporate it into gas; it is a high-efficiency and energy-saving exchange of air-collecting temperature and heating vaporization functions, which can replace heating vaporization products. Thermal equipment. Vaporizers vaporize low-temperature liquid gas into a gas of a certain temperature through heat exchange, and are classified into three types according to their uses: high, medium, and low pressure.
high-pressure vaporizer is to vaporize liquid oxygen, liquid nitrogen, liquid argon, and liquefied natural gas after being pressurized by a cryogenic liquid pump into a high-pressure gas and fill it into a steel cylinder. The low-pressure vaporizer vaporizes the low-temperature liquid in the storage tank into low-pressure gas, which is transported to the site of use through a pipeline through a pressure regulating device. The air-heated vaporizer is a high-efficiency and energy-saving product. Compared with the water-bath electric heating vaporizer and the steam-heating water-bath vaporizer, it can save a lot of electricity or steam.
The structural characteristics of the vaporizer can ensure the normal operation of all parts under the cryogenic temperature, avoid sealing freezing, good sealing, safe and reliable, non-corrosive, and long service life. Using special ￠120, ￠160, ￠200 large-diameter dedicated aluminum finned tubes, the defrosting speed is extremely fast. The welding seams of all parts of the vaporizer are welded by argon arc welding, and the welding seams are neat, beautiful and free of pore defects. Optimize the process design, minimize the pressure, no bias flow phenomenon, and ensure that the flow rate is controlled within a safe range.
●Using aluminum large fin heat exchange tubes with high heat transfer coefficient, good strength and extension performance, fast defrosting speed, high heat exchange efficiency and low weight.
●The whole equipment adopts aluminum "bridge" connection, which is beautiful and durable, and effectively eliminates the stress caused by thermal expansion and contraction.
●Optimized design, combined with practical experience, designed a vaporizer that meets the requirements of gasification capacity, saves costs, reduces pressure drop, and has no bias flow.
●The equipment is simple and compact, with quick installation, convenient maintenance and simple operation.
●The equipment has no moving parts, no fragile and consumable parts, no energy required for use, no operating costs, and environmental protection.
●The surface of the heat exchange tube is treated with anti-oxidation, which has a long service life and can be used for life once.
●There are a variety of specifications of heat exchange tubes to choose from, and the external dimensions can be designed according to the requirements, reducing the floor space and saving space.
●Advanced high-pressure tube composite technology makes 100% contact between the pressure tube and the heat exchange tube to ensure the heat exchange effect.
●All parts of the equipment are cleaned and manufactured in accordance with oxygen service standards, making it safer to use.
Nanyang Duer Gas Equipment Co., Ltd. is a joint-stock high-tech enterprise. The company is located in the picturesque north of the Han River and south of Funiu; the source of the South-to-North Water Diversion-Nanyang, the land of......
South Section of Jingyi Road, Industrial Cluster District, Sheqi County, Nanyang City, Henan Province