Multiple heat exchange traditional Chinese medicine extraction device and method

Abstract

The invention relates to the technical field of traditional Chinese medicine extraction equipment, and especially relates to a multiple heat exchange traditional Chinese medicine extraction device and method. The device comprises a CO2 heat pump system, a steam generation system and at least one set of extraction systems, the CO2 heat pump system comprises a first air cooler and a heat pump assembly, the first heat exchange side and the second heat exchange side of the first air cooler are respectively connected with the heat pump assembly and the steam generation system, and each set of extraction systems is respectively connected with the steam generation system; and the device further comprises at least one set of condensate water circulation system and a second air cooler, the first heat exchange side of the second air cooler is connected in the CO2 heat pump system in series, each set of condensate water circulation system is connected with the corresponding set of extraction system, and each set of condensate water circulation system is connected with the steam generation system through the second heat exchange side of the corresponding second air cooler. Compared with an existing traditional Chinese medicine extraction device, the device and the method can efficiently recover waste heat of the device to achieve energy reutilization, and have the advantages of being high in water outlet temperature and high in energy efficiency ratio of a high-temperature area.

Description

technical field [0001] The invention relates to the technical field of traditional Chinese medicine extraction equipment, in particular to a multiple heat exchange traditional Chinese medicine extraction device and an extraction method. Background technique [0002] The traditional Chinese medicine extraction device is one of the most important links of traditional Chinese medicine products. The traditional Chinese medicine extraction process usually includes two processes: moistening and decocting. The process of moistening the medicine is to soak the medicinal materials in water; the process of decocting is to heat the water after moistening the medicine to boiling and maintain it until the end of extraction. Among them, the decoction process is the link with the highest energy consumption in the extraction process of traditional Chinese medicine. The decoction process usually uses steam to heat the water in the extraction tank and maintain a boiling state. In the traditi...

AI Technical Summary

Problems solved by technology

In the traditional traditional Chinese medicine extraction device, the steam generation process uses coal or fuel oil. The steam generation process has the disadvantages of high energy consumption and large pollution. However, the existing traditional Chinese medicine extraction device also uses electric heating to generate steam. In the process of steam generation, although the process of generating steam by electric heating is non-polluting, its energy consumption is still relatively high, especially the energy efficiency ratio in high temperature areas is too low, which is not conducive to large-scale production and energy saving and emission reduction

Images