Waste heat recovery system

New condition waste heat recovery steam generator

Principle of heat pipe
First, draw out the air of the sealed tube to vacuum.
Then fill some working fluid to the tube.
The working fluid is heated at the bottom.
It evaporates when it absorbs heat.
For the sake of pressure difference, it rises up to the top of tube.
It condenses when meets the cold tube wall, and it releases the latent heat at the same time.
The condensed liquid drops down to the hot side for gravity. It rises again when heated.
So the heat is transferred from one side to another side continuously.

Characteristics of heat pipe
High thermal conductivity
Heat transfer coefficient of cold side and hot side can be strengthened by spiral fins.
This overcomes the weakness of the low heat transfer coefficient of gas.
The speed of heat transfer coefficient of the heat pipe is of several times of a copper stick of same size. Because of the hot side and cold size are all in one tube, the temperature drop is very small, the speed of heat transfer is very high.
Small temperature drop heat transfer
Because of the vacuum of the tube, heat is transferred with phase change, the thermal resistance is very small , Small temperature drop can achieve great thermal conductivity.
Circulation of working fluid is relied on the position of condensate liquid and gravity.
No additional power is needed.
Small temperature drop heat transfer
Because of the vacuum of the tube, heat is transferred with phase change, the thermal resistance is very small , Small temperature drop can achieve great thermal conductivity.
Circulation of working fluid is relied on the position of condensate liquid and gravity. No additional power is needed.
Heat flux can be adjusted as required
Heat transfer material and structure to be selected by the characteristics of hot fluid and cold fluid . Calculate the dew point of by the component of flue gas .
Design the structure and adjust the heat flux to make the tube wall temperature higher than dew point temperature.
This effectively solve the problem of dew point corrosion.
The life of the equipment is prolonged.

Working principle

The wet air enter into the heating area from the bottom of the equipment.

After the bottom of hot pipe absorb the heat, and the working medium in the hot pipe will be evaporated, and absorb Evaporated heat from the wet air . after evaporation , the steam will go up to the top of the hot air , meanwhile , it can be pre-condensed ,and release the potential heat to the hot air radiating area . and the condense will back return by the gravity heavy , and continuously receive heat , and repeat delivering the heat from the heating area to the heat radiating area,and heat the fresh for waste heat recovery .

Changzhou Yibu Drying Equipment Co., Ltd. is a leading manufacturer of drying, mixing, and granulating equipment in China, a specially-designated enterprise of China Association for Pharmaceutical Equipment (CAPE) and China General Machinery Industry Association (CGMA) Drying Equipment Branch. The factory covers an area of over 50,000 m2, has fixed assets of CNY 35 million, with more than 180 sets of special processing equipment and strong technical force. The company owns the provincial famous trademark of "YIBU", and has passed the ISO9001 & ISO14001 certifications.
The founder, Mr Zha Guocai has devoted more than 30 years in R&D, production and business of drying equipment. He holds the post of Deputy Director-General of China General Machinery Industry Association (CGMA) Drying Equipment Branch for a long time. The company pays great attention to science and technology innovation, has collaborated with Medicine Design Institutes in Shanghai, Wuhan, Chongqing and other places, Shenyang Chemical Research Institute, Qinghua University, Shanghai Jiaotong University, Dalian University of Technology, etc. The company launched 3-5 new products to the market every year. In 1998, YIBU established "China Research Center of Drying and Granulating" with the approval of relevant state department, and cooperated with pharmaceutical, chemical and food industries to research and develop new technologies related to drying, granulating and mixing, etc. The factory also has a variety of test prototypes in the laboratory for customers' trials.
The company sold equipment to USA, Mexico, Columbia, Guatemala, Brazil, Peru, Australia, New Zealand, Ghana, Russia, Cyprus, Greece, Iran, Indonesia, Philippines, Korea, Japan, Taiwan, Hong Kong and other countries.