CN2416463Y - Vacuum freezing dryer - Google Patents

Abstract

The utility model relates to a vacuum freeze dryer, which mainly consists of a freeze-drying box, a hollow plate layer, a main valve, a cold trap, a capture tube, an evacuation valve, a vacuum pump, a cold trap valve, a freezer, a refrigeration valve, a cold exchanger, a heating It is composed of components such as a device and a circulating pump. The utility model is a vacuum freeze-drying machine which is simple in structure, good for disinfection, does not contaminate medicines, and is good for material temperature uniformity.

Description

A vacuum freeze dryer

The utility model relates to a vacuum freeze dryer, in particular to a vacuum freeze dryer suitable for pharmaceuticals and biological products.

The disadvantage of ordinary vacuum freeze dryer is that it is not conducive to disinfection, pollutes medicines, and is not conducive to uniform temperature of materials.

The purpose of the utility model is to provide a vacuum freeze dryer which is simple in structure, good for disinfection, does not contaminate medicines, and is good for material temperature uniformity.

In order to achieve the above object, the utility model adopts the following design scheme: this vacuum freeze dryer is mainly composed of parts such as a freeze drying box, a cold trap, a vacuum pump, a freezer, a cold exchanger, a circulating pump, etc., and the inside of the freeze drying box is There is a hollow plate layer, a capture tube is installed in the cold trap, a main valve is used to connect the freeze-drying box and the cold trap, the capture tube is connected to the freezer through a cold trap valve, and the cold exchanger is connected to the cold trap. A refrigeration valve is installed between the refrigerators, one end of the hollow plate layer is connected to the circulation pump, and the other end is connected to the cold exchanger, and a heater is installed between the circulation pump and the cold exchanger. An evacuation valve is installed between the cold trap and the vacuum pump.

Since the utility model adopts the above technical scheme, the utility model has a simple structure, is good for disinfection, does not pollute medicines, and is good for uniform temperature of materials.

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a schematic diagram of an embodiment of the utility model

As shown in Figure 1, this vacuum freeze dryer of the present utility model is mainly made of components such as freeze-drying box 1, cold trap 4, vacuum pump 7, freezer 9, cold exchanger 11, circulating pump 13, is characterized in that: Hollow plate layer 2 is housed in described freeze-drying box 1, and capture tube 5 is housed in described cold trap 4, is connected with main valve 3 between described freeze-drying box 1 and cold trap 4, and described capture tube 5 passes through cold trap The valve 8 is connected to the refrigerator 9, a refrigeration valve 10 is installed between the cold exchanger 11 and the refrigerator 9, one end of the hollow plate layer 2 is connected to the circulation pump 13, and the other end is connected to the cold exchanger 9. A heater 12 is installed between the circulating pump 13 and the cold exchanger 11, and an evacuation valve 6 is installed between the cold trap 4 and the vacuum pump 7.

Materials can be placed on the hollow plate layer 2 housed in the freeze-drying box 1 . The heater 12, the cold exchanger 11, the circulation pump 13 and the hollow plate layer 2 form a circulation system. The low-viscosity heat-conducting medium conducts indirect heating and cooling on the plate layer in the circulation system, so that the material is evenly heated and frozen.

The cold trap 4 (also known as water condenser, water catcher, water catcher) is equipped with catch tube 5, which is used to catch the water sublimated in the material.

The cold exchanger 11 of the circulation system, the capture tube 5 in the cold trap 4, the refrigerator 9, etc. constitute a refrigeration system, which is used for indirect refrigeration of materials and direct refrigeration of the cold trap.

The main valve 3 is a large-diameter stainless steel valve used to isolate the freeze-drying box 1 and the cold trap 4, and can be a butterfly valve or a mushroom valve. The main valve 3, the evacuation valve 6, the vacuum pump 7 etc. form a vacuum system to maintain the vacuum degree in the freeze-drying process.

The above is only an embodiment of the utility model, and any equivalent transformation based on the utility model is within the protection scope of the utility model.

Claims (1)

1, a kind of vacuum freeze drier, mainly by freeze drying box, cold-trap, vavuum pump, refrigerator, cool exchanger, parts such as circulating pump constitute, it is characterized in that: the hollow flaggy is housed in the described freeze drying box, be equipped with in the described cold-trap and catch pipe, connect with main valve between described freeze drying box and the cold-trap, described seizure pipe links to each other with described refrigerator by the cold-trap valve, device has refrigeration valve between described cool exchanger and the refrigerator, described hollow flaggy one end is connected with described circulating pump, the other end is connected with described cool exchanger, install having heaters between described circulating pump and cool exchanger, device has evacuation valve between described cold-trap and the described vavuum pump.

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