Freeze-drying equipment heating system using water as heating medium

Abstract

The invention discloses a freeze-drying equipment heating system using water as a heating medium. The system comprises a freeze-drying equipment body; an inner casing is arranged on one side inside the freeze-drying equipment body; an upper cavity layer is formed on the upper side inside the inner casing; a lower cavity layer is formed on the lower side inside the inner casing; a drying chamber isarranged inside the inner casing; a radiator is mounted on one side inside the drying chamber; a water inlet and a water outlet of the radiator communicate with the upper cavity layer and the lower cavity layer correspondingly; and the other end of the upper cavity layer is connected with a first connector. Materials inside the drying chamber are heated by the radiator, auxiliary heating can alsobe performed on the inside of the drying chamber through the upper cavity layer and the lower cavity layer, and the heat source inside hot water is utilized sufficiently. Two groups of circulating water pumps are arranged and can be used in a circulating manner, one of the two groups can be used as a standby, and the probability of damage to the circulating water pumps due to long-time operationis reduced; and a first pressure valve and a second pressure valve are arranged, so that the water pressure is monitored.

Description

technical field [0001] The invention relates to the technical field of heating equipment, in particular to a heating system for freeze-drying equipment using water as a heat medium. Background technique [0002] Freeze-dried fruit uses the vacuum freeze-drying method of a freeze dryer to freeze the water in the fruit in advance, and then sublimates the frozen water in the fruit in a vacuum environment to obtain freeze-dried fruit. In short, the water in the fruit is extracted in a low temperature environment to retain its original nutrition. Freeze-dried fruit is fast-frozen, dehydrated in vacuum ice, retains the original color, aroma, taste, nutrients and the appearance of the original material, and has good rehydration, and does not contain any additives. It is an ideal natural Hygienic food. [0003] Freeze-dried fruits need to be preheated to restore the original temperature after vacuum drying. Most of the existing freeze-drying equipment uses gas for heating, and the...

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Problems solved by technology

[0003] Freeze-dried fruits need to be preheated to restore the original temperature after vacuum drying. Most of the existing freeze-drying equipment uses gas for heating, and the heating effect is not ideal. Therefore, a freeze-drying system with water as the heat medium is provided. It is necessary to solve the above-mentioned problems with the equipment heating system

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