Welcome to wxhengyi.com website!   Favorites    Set Homepage    Email     中文网站     English Wesite
 
Product exhibition
 
Multi-effect evaporator
Fluctuation membrane evaporator
Wastewater treatment special much evaporator
Short distance distiller (popular name molecular distillation)
The characteristic of scraper
Film short distance complete set installment
 
Contact us
 
Add:No. 8-4 Jinrui road xibei town Wuxi
Sales hotline :+86 510 8871 7367
Tel:0510-88717367 88717665
Fax:0510-88717665
E-mail:wxhengyi@163.com
    hengyi@wxhengyi.com

www.gloriafeeling.cn
>more
 
 
News center    
 
Evaporator thermal resistance formula
发布者:admin  日期:2011-2-14 9:53:00  点击:2072

Thermal resistance of the evaporator is calculated by
                             1 / K = (1/a1) + (δ / a) + Ri + (1/a2)
① tube steam condensation resistance 1/a1 generally small, but it should be noted that the heating chamber and remove non-condensable gas, or non-condensable gases continue to accumulate in the heated indoor, will significantly increase the thermal resistance;

② wall thermal resistance δ / a can generally be ignored;
 

③ scale the side of the inner wall layer of liquid thermal resistance Ri depends on the nature of the solution, the movement of the liquid tube. Reduce the fouling layer thermal resistance is regular cleaning of heating, speed up the fluid circulation rate, or by adding inhibitors to trace delaying the formation of fouling layer; in dealing with the material can be crystallized by adding a small amount of seed, the crystallization of the main body of the solution as much as possible, rather than precipitation in the heating surface;

④ of boiling to the thermal resistance 1/a2 mainly on the flow of boiling liquid.

 
[返回] [打印]
 
Copyright © 2011 Wxhengyi.com All Rights Reserved. Website:www.gloriafeeling.cn E-mail:wxhengyi@163.com hengyi@wxhengyi.com
Official ICPauthorization from Jiangsu Government n°7027964
Power by juntong.net

2019年009期马会一句赢钱诀