Compound type monomer multi-effect steam mechanical recompression evaporator

Abstract

The invention discloses a compound type monomer multi-effect steam mechanical recompression evaporator. The compound type monomer multi-effect steam mechanical recompression evaporator comprises a material distributing device, a heater, a steam-water separation chamber and a steam mechanical compression pump, and is characterized in that the material distributing device, the heater and the steam-water separation chamber are sequentially communicated from top to bottom and fixedly connected into a whole; the steam mechanical compression pump can communicate and connect the steam-water separation chamber with the heater through a pipeline; and a material input end of the steam-water separation chamber is connected with a feed pump through the pipeline, and a material output end is communicated and connected with the material distributing device through the pipeline and a circulating pump. The evaporator has the advantages of simple structure and small occupied space, and can achieve the effects of single-effect efficiency, multi-effect evaporation and energy conservation. Secondary steam produced by evaporation of material is recompressed by the steam mechanical pump and then used for heating the material, so that the circulating use is realized and the energy is saved. After the evaporator is opened and runs normally, the fresh steam does not need to be supplemented. The evaporator is suitable for evaporation and concentration of various liquid-containing materials.

Description

technical field [0001] The invention relates to an evaporation concentration equipment, especially a single-effect and multi-effect vapor mechanical compression evaporator. technical background [0002] Among the existing evaporators used for evaporation and concentration of materials, single-effect and multi-effect evaporators are used more. In use, it is found that the single-effect evaporator has a relatively high efficiency of material evaporation and concentration due to the direct vacuuming of the vacuum device. However, in the process of evaporating and concentrating materials, the steam for heating and evaporating and concentrating materials is only used once, and the single-effect energy consumption is relatively high. Theoretically, the multi-effect evaporator can use primary steam in several processes, so it is more energy-saving; the fly in the ointment is that the speed and efficiency are relatively low, and the existing multi-effects are used in series wi...

AI Technical Summary

Problems solved by technology

However, in the process of evaporating and concentrating materials, the steam for heating, evaporating and concentrating materials is only used once, and the single-effect energy consumption is relatively high.

Theoretically, the multi-effect evaporator can use primary steam in several processes, so it is more energy-saving; the fly in the ointment is that the speed and efficiency are relatively low, and the existing multi-effects are used in series with several streams. The system is large in size and takes up a lot of space, so the heat dissipation is large due to the large volume, and the thermal loss is also large

For example, a set of three-effect evaporator steams a ton of water with only 33% theoretical steam, but the actual steam used is far greater than the theoretical value.

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