Hang Zhou Dawn Air Conditioning Co .,Ltd.

The first evaporator generate secondary steam as the heating source, then introduction to another evaporator coils, as long as the control of the evaporator pressure and the solution boiling point, making it appropriate to reduce, you can use the first evaporator to heat the steam generated by the second. At this point, the first evaporator condensate is that it is the second evaporator heating Department. This is the principle of multi-effect evaporation. Each evaporator is called an effect, which leads to raw steam as the first effect evaporator, steam by the second pass into the direction followed by the second effect, the third effect, etc. Three-effect evaporator characteristics of material heating time is short, fast evaporation, concentration ratio of major to effectively maintain the material of the original effect. Remarkable energy savings, conservation than single-effect evaporator is about 70% of evaporation. Material in a closed system, evaporation, clean and comfortable; equipment unique demister device to prevent material run phenomenon. All contact parts with material are made of imported stainless steel and polishing process, equipment, good corrosion resistance, cleaning more convenient, more in line with the pharmaceutical, food hygiene compliance requirements. Can be equipped with computer control system easier to use, the effect is more stable.
Three-effect evaporator testing Note: 1, Evaporator heater must be installed the first safety valve, the first effective steam pressure within the heater shall not exceed 0.01Mpa. Safety valve should always check whether the fault. Can not be insensitive. 2, In any case have to close the steam stop valve. 3, When the evaporator circulation pump fails to stop running, you should immediately turn off the steam. 4, Always check the functioning of the pump, the oil level is normal, the size of cooling water. 5, always observe the device's motor current and motor temperature. 6, in any case prohibited any effect cutting, adjust the evaporator liquid level to be carried out slowly, not suddenly suddenly small. 7, when the device working temperature below 0 ℃, the equipment and piping should be exhausted within the water to avoid frozen or blocked pipes.
Three-effect evaporator applications: the following occasions: 1, Concentrated direct Preparation of dilute solutions or concentrated solution of the product re-treatment (such as cooling and crystallization) Preparation of solid products, such as concentrated liquid caustic soda electrolysis, the concentration of sugar solution and the kinds of fruit juice concentrates, etc.; 2, While the concentrated solution and recovery of solvents, such as organophosphate pesticides benzene solution of concentrated benzene, alcohol, medicine production, leachate evaporation, etc.; 3, In order to obtain pure solvent, such as desalination.
In short, in the chemical industry, food industry, pharmaceutical industry, the evaporation operation is widely used.