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Post Requirements
Post Requirements
Product information
When steam comes into contact with a wall that is lower than its saturation temperature, it will condense into a liquid and release the latent heat of vaporization and transfer it to the wall. This heat exchange process is called condensation heat transfer and is generally divided into: film condensation and droplet condensation. The condensation effect can be enhanced by mechanical processing on the surface of the light pipe.
1. Strengthen heat transfer mechanism
Through mechanical processing and other methods, shapes such as spiral grooves on the surface of the heat transfer element are added to destroy the surface condensation liquid film, accelerate condensation liquid discharge, reduce condensation thermal resistance, and enhance condensation heat transfer. Influencing factors include: medium characteristics, flow form, non-condensable gas content, surface structural parameters of heat transfer elements, heat exchange tube arrangement, etc.
2. Core components
1)Threaded pipe
High-efficiency low-fin tubes process various types of fin structures on the surface of the heat exchange tube to accelerate the discharge of condensate and accelerate condensation.
2) LAN-TC, LAN-C tube (embossed tube)
Lanke High-tech Self-developed Management
The external condensation heat transfer coefficient of LAN-C tube is about 1.2 to 1.5 times that of low rib tube (ordinary threaded tube); 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).
3. Performance advantages
High heat transfer coefficient: about 2 to 4 times that of light pipes.
Small pressure drop: about 50 to 80% of that of light pipes.
Small footprint: about 60 to 80% of that of light pipes.
The overall weight of the equipment is small: about 60 to 80% of that of light pipes.
Equipment investment is low: about 50 to 80% of that of light pipes.
Comparison of the effects of tower top condensers in light oil processing equipment
Project Light tube heat transfer solution Enhanced heat transfer solution Comparison results
Equipment specifications (shell diameter x tube length)/mm 1700x7000 1700x5000 /
Number of equipment/unit 1 1 /
Total length of heat exchange tube/m 7000 5000 /
Total pressure drop/kpa 50 42 reduced by 16%
Heat exchange area/m2 1455 1040 reduced by 29%
Total equipment weight/t 42.9 29.5 reduced by 31%
Floor space/m2 17.8 13.8 23% reduction
4. Application fields
Due to its unique advantages, the condensation enhanced heat exchanger has been used in light oil processing equipment, EB/SM equipment, ethylene equipment, C2-C5 olefin production equipment, DMC carbonate equipment, ethylene glycol equipment and other equipment. At the same time It can be popularized and applied in situations with high floor area requirements and condenser modification.
5. Main achievements
Serial number device heat exchanger
1 EB/SM device: benzene tower condenser, ethylbenzene tower condenser, polyethylbenzene tower condenser, etc.
2 Ethylene plant low-pressure depropanizer condenser, high-pressure depropanizer condenser, high-pressure depropanizer tower 2# reflux quencher, deethanizer condenser, carbon three stripper reboiler, propylene distillation tower reboiler , propylene distillation tower condenser, propylene refrigerant compressor outlet condenser, alkali washing tower top cooler, lubricating oil cooler, etc.
3 C2-C5 olefin production unit, deethanizer condenser, ethylene distillation tower condenser, etc.
4 DMC carbonate unit EC recovery tower condenser, EMC reaction tower condenser, EC purification tower product cooler, EG separation tower condenser, electronic grade DMC second tower product cooler, electronic grade DMC second tower condenser, electronic grade DMC Tower product cooler, industrial grade EG tower product cooler, methanol purification tower condenser, etc.
5 Ethylene glycol unit: methanol recovery tower first cooling, dealcoholization tower first cooling, ethylene glycol product tower second cooling, T1 tower condenser, etc.
6. After-sales service
Arrange instructors with experience in working with similar equipment to be responsible for on-site guidance on installation, start-up and transportation, and technical training. During equipment trial operation, professional technicians are sent to the site to provide technical support and on-site services. After the completion of the project, the buyer will be provided with permanent technical support, free technical consulting services and corresponding technical solutions. Provide solution support and on-site services for technical problems encountered during use and maintenance.
| Parameter Name | Value Range |
| Fin expansion area | It is 2.2 to 3 times that of light tube |
| Overall heat transfer coefficient | It is 2 to 4 times that of light tube |
| Pressure drop | About 50~80% of light pipe |
| Heat exchange area | About 60~80% of light pipe |
| Equipment weight | About 60~80% of light pipe |
| Covered area | About 60~80% of light pipe |
