Ultrasonic-assisted freeze drying device

Abstract

The utility model provides an ultrasound-assisted freeze-drying device which comprises a vacuum tank and a vacuum pump, a base is arranged on the lower portion of the vacuum tank, a pipeline is arranged on the vacuum pump, the other end of the pipeline is connected to the interior of the vacuum tank, a vacuum valve and a pressure gauge are arranged on the pipeline, a top cover is arranged on the upper portion of the vacuum tank, and the vacuum pump is arranged on the top cover. A temperature detector is arranged in the middle of the top cover, an external heat preservation layer is arranged on the outer side of the vacuum tank, and a refrigeration module and a temperature control plate are arranged at the bottom of the vacuum tank. According to the ultrasonic-assisted freeze-drying device provided by the utility model, the material bearing disc at the upper position corresponds to the side ultrasonic vibrators, and the lowest group of material bearing discs corresponds to the bottom ultrasonic vibrators, so that the effect of promoting materials to form ice crystals by ultrasonic waves is more uniform; and the situation that the ultrasonic-assisted effect and the freeze-drying efficiency are reduced due to the fact that the ultrasonic vibrator is only arranged at the bottom and the materials above are difficult to be influenced by ultrasonic waves is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to freeze drying device field especially relates to an ultrasonic auxiliary freeze drying device. BACKGROUND

[0002] Freeze drying technology is the fresh food, pharmaceutical raw material is frozen, then reduces the surface pressure, makes the water in it directly sublimes into gas's craft, because the water in this process does not pass through the melting process directly gasifies, will not cause the collapse of organization, and can keep the organization in the form before freeze drying, therefore the material after freeze drying has very good appearance, in addition, because the drying temperature is lower, the active ingredient in the material is reserved, can maximize the quality of product.

[0003] The traditional ultrasonic auxiliary freeze drying device only sets up the ultrasonic transducer at the bottom, but because the ultrasonic energy gradually attenuates in the upward propagation process, the ultrasonic influence on the upper material is weak, which cannot effectively form fine and uniform ice crystals like the bottom material, directly affecting the effect and efficiency of freeze drying.

[0004] Therefore, it is necessary to provide an ultrasonic auxiliary freeze drying device to solve the above technical problems. UTILITY MODEL CONTENT

[0005] The utility model provides an ultrasonic auxiliary freeze drying device, which solves the problem that setting an ultrasonic transducer only at the bottom causes weak ultrasonic influence on the upper material, directly affecting the effect and efficiency of freeze drying.

[0006] To solve the above technical problems, the utility model provides an ultrasonic auxiliary freeze drying device, which comprises a vacuum tank and a vacuum pump, a bottom is arranged at the lower part of the vacuum tank, a pipeline is arranged on the vacuum pump, the other end of the pipeline is connected to the inside of the vacuum tank, a vacuum valve and a pressure gauge are arranged on the pipeline, a top cover is arranged at the upper part of the vacuum tank, a temperature detector is arranged at the middle position of the top cover, an external heat preservation layer is arranged outside the vacuum tank, a refrigeration module and a temperature control plate are arranged at the bottom of the vacuum tank, a plurality of bottom ultrasonic transducers are evenly arranged on the upper surface of the temperature control plate, a plurality of side ultrasonic transducer assemblies are evenly arranged on the inner wall of the vacuum tank, a plurality of butt joints are fixedly connected between the side ultrasonic transducer assemblies, and a material placing part is slidably connected to the butt joints.

[0007] Preferably, a sealing ring is arranged between the top cover and the upper part of the vacuum tank, a bottom heat preservation layer is arranged below the bottom, and the bottom heat preservation layer is located outside the temperature control plate.

[0008] Preferably, the side ultrasonic transducer assembly comprises a first mounting bracket, the lower end of the first mounting bracket is fixedly connected with the inner wall of the vacuum tank, the upper end of the first mounting bracket extends to the outside of the vacuum tank through the vacuum tank, the upper end of the first mounting bracket is provided with a generator connecting end, a mounting groove is formed in the first mounting bracket, the mounting groove is provided with two groups, and a side ultrasonic transducer is arranged in the mounting groove.

[0009] Preferably, the docking piece comprises a second mounting bracket, the second mounting bracket is annular, the two ends of the second mounting bracket are fixedly connected with the sides of the first mounting bracket, and a plug-in groove is fixedly connected to one side of the second mounting bracket which faces the center of the vacuum tank.

[0010] Preferably, the material placing part comprises a material bearing disc and an annular plate, the material bearing disc is provided with multiple groups, the annular plate is fixedly connected with the uppermost material bearing disc, and a connecting rod is fixedly connected between the material bearing discs.

[0011] Preferably, the number of the connecting rods corresponds to the number of the plug-in grooves, the connecting rod is provided with a plug-in strip, and the plug-in strip is in sliding connection with the plug-in groove.

[0012] Compared with the related art, the ultrasonic auxiliary freeze-drying device has the following beneficial effects:

[0013] The material bearing disc located at the upper position corresponds to the side ultrasonic transducer, and the material bearing disc located at the lowermost position corresponds to the bottom ultrasonic transducer, so that the effect of promoting the formation of ice crystals by ultrasonic waves is more uniform, and the effect of ultrasonic assistance and the efficiency of freeze-drying are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The structure diagram of a preferred embodiment of the ultrasonic auxiliary freeze-drying device provided by the utility model Figure 1 ;

[0015] Figure 2 The structure diagram of a preferred embodiment of the ultrasonic auxiliary freeze-drying device provided by the utility model Figure 2 ;

[0016] Figure 3 The structure diagram of the base in the utility model

[0017] Figure 4 The structure diagram of the inside of the vacuum tank in the utility model

[0018] Figure 5It is the structure schematic view of the side ultrasonic transducer assembly and the butt joint piece in the utility model.

[0019] Figure 6 It is the structure schematic view of the material placing part in the utility model.

[0020] In the drawing, 1 is a vacuum tank, 2 is a base, 3 is a vacuum pump, 4 is a pipeline, 5 is a vacuum valve, 6 is a pressure gauge, 7 is a top cover, 8 is a sealing ring, 9 is an external thermal insulation layer, 10 is a bottom thermal insulation layer, 11 is a refrigeration module, 12 is a temperature control plate, 13 is a bottom ultrasonic transducer, 14 is a side ultrasonic transducer assembly, 141 is a first mounting bracket, 142 is a generator connecting end, 143 is a mounting groove, 144 is a side ultrasonic transducer, 15 is a butt joint piece, 151 is a second mounting bracket, 152 is a plug-in groove, 16 is a material placing part, 161 is a material bearing disc, 162 is an annular plate, 163 is a connecting rod, 164 is a plug-in strip, and 17 is a temperature detector. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and embodiments.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 And Figure 6 Among them, Figure 1 It is the structure schematic view of a preferred embodiment of the ultrasonic auxiliary freeze-drying device provided by the utility model Figure 1 ;

[0023] Figure 2 It is the structure schematic view of a preferred embodiment of the ultrasonic auxiliary freeze-drying device provided by the utility model Figure 2 ;

[0024] Figure 3 It is the structure schematic view of the base in the utility model.

[0025] Figure 4 It is the structure schematic view of the inside of the vacuum tank in the utility model.

[0026] Figure 5 It is the structure schematic view of the side ultrasonic transducer assembly and the butt joint piece in the utility model.

[0027] Figure 6 It is the structure schematic view of the material placing part in the utility model.

[0028] An ultrasonic-assisted freeze-drying device comprises a vacuum tank 1 and a vacuum pump 3, the lower part of the vacuum tank 1 is provided with a base 2, the vacuum pump 3 is provided with a pipeline 4, one end of the pipeline 4 is connected to the inside of the vacuum tank 1, the pipeline 4 is provided with a vacuum valve 5 and a pressure gauge 6, the upper part of the vacuum tank 1 is provided with a top cover 7, the middle position of the top cover 7 is provided with a temperature detector 17, the outside of the vacuum tank 1 is provided with an external heat preservation layer 9, the bottom of the vacuum tank 1 is provided with a refrigeration module 11 and a temperature control plate 12, the upper surface of the temperature control plate 12 is provided with uniformly distributed bottom ultrasonic transducers 13, the inner wall of the vacuum tank 1 is provided with uniformly distributed side ultrasonic transducer assemblies 14, the side ultrasonic transducer assemblies 14 are fixedly connected with a butt joint 15, and the butt joint 15 is slidably connected with a material placing part 16.

[0029] The material to be processed is placed in the material placing part 16, and after the side of the material placing part 16 is aligned with the butt joint 15, it is installed into the vacuum tank 1, the top cover 7 is covered, and the vacuum pump 3, the refrigeration module 11, the temperature control plate 12, the bottom ultrasonic transducers 13 and the side ultrasonic transducer assemblies 14 and other devices start to operate, and the material is subjected to freeze-drying treatment.

[0030] The top cover 7 and the upper part of the vacuum tank 1 are provided with a sealing ring 8, the lower part of the base 2 is provided with a bottom heat preservation layer 10, and the bottom heat preservation layer 10 is located outside the temperature control plate 12.

[0031] The sealing ring 8 and the bottom heat preservation layer 10 increase the sealing property and further reduce the influence of the outside world on the temperature of the internal space of the vacuum tank 1.

[0032] The side ultrasonic transducer assembly 14 comprises a first mounting bracket 141, the lower end of the first mounting bracket 141 is fixedly connected with the inner wall of the vacuum tank 1, the upper end of the first mounting bracket 141 extends to the outside of the vacuum tank 1, the upper end of the first mounting bracket 141 is provided with a generator connecting end 142, the first mounting bracket 141 is provided with two groups of mounting grooves 143, and the mounting grooves 143 are provided with side ultrasonic transducers 144.

[0033] The generator connecting end 142 is connected to an external ultrasonic generator, and the side ultrasonic transducers 144 work according to the set program to process the corresponding material carrying disc 161.

[0034] The butt joint 15 comprises a second mounting bracket 151, the second mounting bracket 151 is annular, the two ends of the second mounting bracket 151 are fixedly connected with the sides of the first mounting bracket 141, and the side of the second mounting bracket 151 towards the center of the vacuum tank 1 is fixedly connected with a plug-in groove 152.

[0035] The second mounting bracket 151 corresponds in shape to the material placing portion 16 and is fixed by the first mounting bracket 141.

[0036] The material placing portion 16 comprises a plurality of material bearing discs 161 and a ring-shaped plate 162 fixedly connected to the uppermost material bearing disc 161, and connecting rods 163 fixedly connected between the material bearing discs 161.

[0037] The material bearing discs 161 can be provided in multiple groups, and the three groups of material bearing discs 161 shown in the figure correspond to the side ultrasonic transducers 144 and the bottom ultrasonic transducer 13, so that the effect of promoting the formation of ice crystals by ultrasonic waves is more uniform, and the efficiency of freeze-drying is improved.

[0038] The number of connecting rods 163 corresponds to the plug-in slots 152, and the connecting rods 163 are provided with plug-in strips 164 that are in sliding connection with the plug-in slots 152.

[0039] The plug-in strips 164 and the plug-in slots 152 assist in the installation of the material placing portion 16, making the installation process smoother and more accurate.

[0040] The working principle of the ultrasonic-assisted freeze-drying device provided by the utility model is as follows:

[0041] The material to be processed is placed in the material placing portion 16, and the material placing portion 16 is installed into the vacuum tank 1 after being aligned with the docking piece 15, and the top cover 7 is covered, and the vacuum pump 3, the refrigeration module 11, the temperature control plate 12, the bottom ultrasonic transducer 13, and the side ultrasonic transducer assembly 14 are started to run, and the material is subjected to freeze-drying treatment.

[0042] Compared with the related art, the ultrasonic-assisted freeze-drying device provided by the utility model has the following beneficial effects:

[0043] The material bearing discs 161 correspond to the side ultrasonic transducers 144 and the bottom ultrasonic transducer 13, so that the effect of promoting the formation of ice crystals by ultrasonic waves is more uniform, and the efficiency of freeze-drying is improved.

[0044] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. An ultrasonic-assisted freeze-drying apparatus, characterized by, Include: Vacuum tank and vacuum pump, the lower part of the vacuum tank is provided with a base, the vacuum pump is provided with a pipeline, the other end of the pipeline is connected to the inside of the vacuum tank, the pipeline is provided with a vacuum valve and a pressure gauge, the upper part of the vacuum tank is provided with a top cover, the middle position of the top cover is provided with a temperature detector, the outside of the vacuum tank is provided with an external heat preservation layer, the bottom of the vacuum tank is provided with a refrigeration module and a temperature control plate, the upper surface of the temperature control plate is provided with uniformly distributed bottom ultrasonic transducers, the inner wall of the vacuum tank is provided with uniformly distributed side ultrasonic transducer assemblies, the side ultrasonic transducer assemblies are fixedly connected with butt joints, and the material placing part is slidably connected with the butt joints.

2. The apparatus of claim 1, wherein, The top cover and the upper part of the vacuum tank are provided with a sealing ring, the bottom of the base is provided with a bottom heat preservation layer, and the bottom heat preservation layer is located outside the temperature control plate.

3. The apparatus of claim 1, wherein the ultrasonic horn is configured to direct ultrasonic energy into the product to be dried. The side ultrasonic transducer assembly comprises a first mounting bracket, the lower end of the first mounting bracket is fixedly connected with the inner wall of the vacuum tank, the upper end of the first mounting bracket extends to the outside of the vacuum tank through the vacuum tank, the upper end of the first mounting bracket is provided with a generator connecting end, the first mounting bracket is provided with a mounting groove, the mounting groove is provided with two groups, and the mounting groove is provided with a side ultrasonic transducer.

4. The apparatus of claim 3, wherein the ultrasonic horn is configured to direct ultrasonic energy into the product to be dried. The butt joint comprises a second mounting bracket, the second mounting bracket is annular, the two ends of the second mounting bracket are fixedly connected with the sides of the first mounting bracket, and the side of the second mounting bracket facing the center of the vacuum tank is fixedly connected with a plug-in groove.

5. An ultrasonic assisted freeze drying apparatus as claimed in claim 4, wherein, The material placing part comprises a material bearing disc and an annular plate, the material bearing disc is provided with a plurality of groups, the annular plate is fixedly connected with the uppermost material bearing disc, and the material bearing discs are fixedly connected with connecting rods.

6. An ultrasonic-assisted freeze-drying apparatus according to claim 5, wherein, The number of connecting rods corresponds to the plug-in groove, the connecting rod is provided with a plug-in strip, and the plug-in strip is slidably connected with the plug-in groove.

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