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Post Requirements
Product information
1 Overview
The high-efficiency heat transfer tube heat exchanger is based on the basic heat transfer equation 𝑸=𝑲∙𝑺∙Δ𝒕. It considers strengthening measures from three aspects: increasing the heat transfer coefficient K, increasing the heat transfer area 𝑺 and increasing the average temperature difference Δ𝒕, thereby improving heat transfer The heat transfer rate Q of the device.
Lanke High-tech (LANPE) utilizes the national engineering technology center platform and adopts the production-university-research-application model to develop high-efficiency surface porous tubes, LAN-TC condensing tubes, spiral twisted tubes, etc. based on conventional shell and tube heat exchangers. Heat transfer tube heat exchangers provide users with integrated solutions in terms of energy efficiency optimization, energy conservation and environmental protection, and waste heat utilization.
2. Core components
1) Surface porous tube
Through high-temperature sintering, the inner and outer surfaces of the heat exchange tube are processed to form a metal porous layer, which provides a large number of capillary holes, provides a large number of vaporization cores for boiling heat transfer, accelerates the generation and bursting frequency of bubbles, and destroys the connection between the fluid and the wall surface of the heat exchange tube. boundary layer.
In actual industrial applications, heat transfer can be enhanced simultaneously on one or both sides. In industrial devices such as oil refining, chemicals, energy, and environment, there are heat exchange situations where gas-liquid phase changes occur, such as medium boiling, vaporization, evaporation and other process operations. unit. Especially suitable for alkanes, olefins, alcohols, Freon and other media, such as: propane dehydrogenation unit, ethylene unit, gas separation, alkylation, MTBE, light hydrocarbon recovery and other tower bottom reboilers, ethylene glycol unit multi-effect evaporation Devices etc.
2) LAN-TC condenser tube
By mechanical processing on the surface of the light tube, the outer surface of the heat exchange tube forms an outer serrated composite spiral horizontal groove structure, which destroys the condensation liquid film on the surface of the heat exchange tube during the condensation heat transfer process, accelerates the discharge of condensate, and reduces the condensation thermal resistance. , strengthen condensation heat transfer. The external condensation heat transfer coefficient of LAN-TC tube is about 1.1 to 1.3 times that of low rib tube (ordinary threaded tube).
It is suitable for light oil processing equipment, EB/SM equipment, ethylene equipment, C2-C5 olefin production equipment, DMC carbonate equipment, ethylene glycol equipment and other equipment, especially for occasions with high floor area requirements and condenser modifications.
3) Spiral twisted tube
The structural feature of the spiral twisted tube is that any cross-section of the heat exchange section of the tube is an oval or ellipse. The manufacturing of the spiral twisted tube is completed by two forming processes: flattening and heat twisting. There is no baffle on the shell side, and it relies on the point contact of the spiral line on the outer edge of the spiral flat tube for self-support.
It is suitable for situations where there is no phase change medium on both sides in industrial installations such as oil refining, chemicals, energy, and environment, and the media inside and outside the pipe, such as gas-gas, liquid-liquid, and gas-liquid, undergo simultaneous enhanced heat exchange processes.
3. Product advantages
1) Surface porous tube
High heat transfer coefficient: boiling heat transfer coefficient is 2 to 10 times that of bare tube;
Small heat transfer temperature difference: The heat transfer temperature difference is only 1/5 to 1/2 of that of the light tube, and low-temperature heat sources can be recovered to reduce energy intensity;
Not easy to scale: It has a self-cleaning effect, and the dirt coefficient is 1/10 to 1/2 of that of light pipes;
High critical heat load: The critical heat load is 1.5 to 2.0 times higher than that of light tubes, which improves the operational stability of heat transfer equipment;
The heat exchange area is small: about 1/3 to 1/2 of the light tube;
The overall weight of the equipment is light: about 1/3 to 1/2 of that of light pipes, saving equipment investment.
2) LAN-TC condenser tube
High heat transfer coefficient: about 2 to 5 times that of light pipes;
Small pressure drop: about 1/4 to 1/2 of light pipe;
Small footprint: about 1/4 to 1/3 of the light pipe;
The overall weight of the equipment is small: about 1/4 to 1/3 of the light pipe;
Equipment investment is low: about 50 to 80% of that of light pipes.
3) Spiral twisted tube
High heat exchange efficiency, 1.3 to 1.8 times higher than traditional heat exchangers;
Strong resistance to fouling and corrosion;
The bundling structure does not require baffles, and the inside and outside are all spiral flow;
The outer edges of the heat exchange tubes are in close contact with the spiral lines, and the self-supporting structure overcomes fluid-induced vibrations. It has strong anti-vibration ability and saves 30 to 60% of materials;
There are no baffles on the shell side, there is no flow dead zone, and the resistance is small.
Small footprint: about 1/4 to 1/3 of the light pipe;
The overall weight of the equipment is small: about 1/4 to 1/3 of the light pipe.
4. Warranty and after-sales
LANPE has a professional after-sales service team responsible for product warranty and after-sales, providing after-sales service 24 hours a day and providing solutions to after-sales problems within 48 hours. Specifically, it includes: arranging instructors with experience in working with similar equipment to be responsible for on-site guidance on installation, start-up and transportation, and technical training; sending professional technicians to the site for equipment trial operation to provide technical support and on-site services; after the completion of the project, the buyer will be provided with permanent Technical support, providing free technical consulting services and corresponding technical solutions; providing solution support and on-site services for technical problems encountered during use and maintenance.
| Parameter Name | Value Range | |
| Surface porous tube | Boiling side heat transfer coefficient (surface porous tube VS plain tube) | 2~10 times |
| Boiling heat transfer temperature difference (surface porous tube VS plain tube) | 1/5~1/2 | |
| Fouling thermal resistance (surface porous tube vs. light tube) | 1/10~1/2 | |
| Critical heat load (surface porous tubes vs. plain tubes) | 1.5~2 times | |
| Weight or floor space (surface porous pipe vs. light pipe) | 1/3~1/2 | |
| LAN-TC Condenser tube | Fin expansion area (LAN-TC condenser tube VS light tube) | 2.5~3.0 times |
| Condensing side heat transfer coefficient (LAN-TC condenser tube VS light tube) | 2~5 times | |
| Pressure loss (LAN-TC condenser tube VS light tube) | 1/4~1/2 | |
| Weight or floor space (LAN-TC condenser tube VS light tube) | 1/4~1/3 | |
| Spiral twisted tube | Overall heat transfer coefficient (spiral twisted tube VS light tube) | 1.3~1.8 times |
| Anti-vibration performance | Better than conventional structures | |
| Anti-fouling properties | Better than conventional structures | |
| Weight or floor space (spiral twisted tube vs. light tube) | 1/4~1/3 | |
