2. 1988 patent, patent number: 88 2 12607.5, patent name: QSH type steam-water mixing heater.
3. In 1989, Mr. Fan, a Ximen hot water machine, designed and invented the product of the utility model patent certificate, the submerged soda mixer (patent number: 89 2 1 10.2).
4. Relevant data of SQS-type steam-water mixing heater in Chemical Process Design Manual (third edition) published by China Petrochemical Group Shanghai Engineering Co., Ltd. in 2003.
5. About the application of steam-water mixed heater in Heilongjiang Science and Technology Information (No.:1 1, 2003).
6. Research Progress of Modern Chemical Jet Steam-water Mixing Heater (20 1 16), published by School of Chemistry and Chemical Engineering, Taiyuan University of Technology. 7. Invention patent published in Science and Technology Information No.20111/009/24/580, patent name: pipeline mixed heating equipment.