A vacuum drying oven

Abstract

The utility model discloses a vacuum drying box, including drying machine and cooling mechanism, drying machine includes box and suction element, and is equipped with drying cavity in the box, and the suction element is connected in drying cavity, cooling mechanism includes cover body, heat exchange spare, liquid supply spare and plugging piece, and is equipped with cavity in the cover body, and the opposite both ends of cover body are equipped with the gas inlet end and the gas outlet end respectively in the cavity, and the gas outlet end is connected in drying cavity, and heat exchange spare is installed on the cover body, and the cavity is divided into a plurality of heat exchange areas, and a plurality of heat exchange areas are all connected in the gas inlet end and the gas outlet end, and liquid supply spare is connected with heat exchange spare, and can transport cooling fluid to heat exchange spare, and plugging piece is installed on the cover body, and can selectively close or open the gas outlet end. The utility model provides a vacuum drying box, can make drying cavity rapid cooling, and the dry goods is taken out in time, and the work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of drying oven technology, specifically to a vacuum drying oven. Background Technology

[0002] A vacuum oven is a box-type drying equipment that dries products under negative pressure. Its working principle is to use a vacuum pump to extract air and moisture, creating a vacuum state in the working chamber, lowering the boiling point of water, and accelerating the drying speed.

[0003] For example, patent CN214746783U discloses a vacuum drying oven, in which slide rails are fixedly connected to both the left and right surfaces inside the vacuum drying oven, a support plate is slidably connected inside the slide rails, a support frame is fixedly connected to the top of the support plate, a filter screen is fixedly connected inside the support frame, and a filter screen is also fixedly connected inside the support plate; when the product is dried in the above vacuum drying oven, it needs to be placed to cool before it can be taken out, which reduces the drying efficiency of the product. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a vacuum drying oven that solves the problem that in the prior art, after the product is baked, it is necessary to wait for the product to cool down before it can be taken out, which reduces production efficiency.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides a vacuum drying oven, comprising: A dryer, comprising a housing and an exhaust fan, wherein the housing has a drying chamber, and the exhaust fan is connected to the drying chamber; and... The cooling mechanism includes a cover, a heat exchanger, a liquid supply unit, and a sealing unit. The cover has a cavity, and the two opposite ends of the cover are respectively provided with an air inlet and an air outlet connected to the cavity. The air outlet is connected to a drying chamber. The heat exchanger is installed on the cover and divides the cavity into multiple heat exchange zones, and the multiple heat exchange zones are all connected to the air inlet and the air outlet. The liquid supply unit is connected to the heat exchanger and can supply coolant to the heat exchanger. The sealing unit is installed on the cover and can selectively close or open the air outlet.

[0006] In some embodiments, the heat exchanger includes a plurality of partitions, an inlet conduit, and an outlet conduit. The plurality of partitions are spaced apart and installed in parallel within the cavity. The heat exchange zone is formed between two adjacent partitions. Each partition has a liquid guiding channel, and the inlets of the liquid guiding channels on the plurality of partitions are all connected to the inlet conduit. The outlets of the liquid guiding channels on the plurality of partitions are all connected to the outlet conduit. The inlet conduit is connected to the liquid supply component.

[0007] In some embodiments, multiple heat exchange fins are provided on both opposite sides of the plurality of partitions.

[0008] In some embodiments, a filter screen is installed on the cover corresponding to the air inlet end; the cooling mechanism further includes an air guide, which is installed inside the cover and corresponds to the air inlet end.

[0009] In some embodiments, the liquid supply device includes a liquid storage tank and a liquid pump. The liquid storage tank contains coolant, and the outlet of the liquid storage tank is connected to the liquid inlet conduit via the liquid pump.

[0010] In some embodiments, the inlet of the liquid storage tank is connected to the outlet conduit.

[0011] In some embodiments, the cover is installed on one side of the box, and the air outlet of the cover corresponds to the air supply end of the box. The sealing component includes a telescopic part and a baffle. The telescopic part is fixedly connected to the cover body, and the output end of the telescopic part is fixedly connected to the baffle. The telescopic part can drive the baffle to move relative to the air outlet end of the cover body so that the baffle can abut or separate from the air outlet end.

[0012] In some embodiments, the sealing element further includes a sealing ring mounted on the baffle, the sealing ring being able to surround the edge of the outlet end.

[0013] In some embodiments, the telescopic part is an electric cylinder.

[0014] In some embodiments, at least one support mesh plate is detachably installed inside the drying chamber of the box.

[0015] Compared with the prior art, the vacuum drying oven provided by this utility model has a drying chamber inside the oven, an air extraction component connected to the drying chamber, and a cavity inside the cover. The cover has an air inlet and an air outlet at opposite ends, both connected to the cavity. The air outlet is connected to the drying chamber. A heat exchanger is installed inside the cavity, dividing it into multiple heat exchange zones, all connected to the air inlet and outlet. A liquid supply component is connected to the heat exchanger and can supply coolant to it. A sealing component is installed on the cover and can selectively close or open the air outlet. After the product is dried in the drying chamber, the air outlet remains open. The air extraction component evacuates the drying chamber, allowing external airflow to enter the cover through the air inlet. The airflow passes through the heat exchange zones for heat exchange and cooling. The cooled airflow is then delivered to the drying chamber through the air outlet, allowing the internal temperature of the drying chamber to exchange with the external ambient temperature. This rapid cooling facilitates the timely removal of dried items and improves work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a vacuum drying oven provided by this utility model; Figure 2 This is a schematic diagram of the internal structure of a vacuum drying oven provided by this utility model; Figure 3 yes Figure 2 Enlarged view of region A in the middle; Figure 4 This is a schematic diagram of the structure of the heat exchanger provided by this utility model; Figure 5 This is a schematic diagram of the structure of the support mesh plate provided by this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0018] To address the technical problem in existing drying ovens where products need to cool down after baking, thus reducing production efficiency, this solution provides a vacuum drying oven. After the product is dried in the drying chamber, external airflow is guided into the drying chamber, enabling rapid cooling.

[0019] Please see Figures 1-5 , Figures 1-5 A vacuum drying oven according to one embodiment of the present invention includes a dryer 1 and a cooling mechanism 2. The dryer 1 includes a box body 11 and an air extraction component 12. The box body 11 is provided with a drying chamber, and the air extraction component 12 is connected to the drying chamber. The cooling mechanism 2 includes a cover 21, a heat exchange component 22, a liquid supply component 24, and a sealing component 25. The cover 21 is provided with a cavity. The two opposite ends of the cover 21 are respectively provided with an air inlet and an air outlet connected to the cavity. The air outlet is connected to the drying chamber. The heat exchange component 22 is installed on the cover 21 and divides the cavity into multiple heat exchange zones, and the multiple heat exchange zones are all connected to the air inlet and the air outlet. The liquid supply component 24 is connected to the heat exchange component 22 and can supply coolant to the heat exchange component 22. The sealing component 25 is installed on the cover 21 and can selectively close or open the air outlet.

[0020] In actual use, the product is placed in the drying chamber for drying. After the product is dried, the air extraction device 12 and the air outlet are turned on. The air extraction device 12 is used to extract air from the drying chamber, so that the external airflow enters the cavity through the air inlet. When the airflow flows through the heat exchange zone, it can exchange heat and cool down. The cooled airflow is then transported to the drying chamber through the air outlet, so that the temperature inside the drying chamber can be exchanged with the temperature of the external environment, and the drying chamber can be cooled down quickly.

[0021] It should be noted that the heat exchanger 22 is not limited to a specific structure. In one embodiment, the heat exchanger 22 includes a plurality of partitions 221, an inlet conduit 222, and an outlet conduit 223. The plurality of partitions 221 are spaced apart and installed in parallel in the cavity. The heat exchange zone is formed between two adjacent partitions 221. Each partition 221 has a liquid guiding channel. The inlets of the liquid guiding channels on the plurality of partitions 221 are all connected to the inlet conduit 222. The outlets of the liquid guiding channels on the plurality of partitions 221 are all connected to the outlet conduit 223. The inlet conduit 222 is connected to the liquid supply component 24.

[0022] In addition, based on the above scheme, in order to increase the contact area between the airflow and the baffle 221, specifically, multiple heat exchange fins are provided on the opposite sides of the multiple baffles 221.

[0023] It should be noted that, based on the above scheme, a filter screen is installed on the cover corresponding to the air inlet end; the cooling mechanism also includes an air guide 23, which is installed inside the cover and corresponds to the air inlet end; wherein, the air guide 23 is an air intake fan, which can accelerate and guide the external airflow into the cavity.

[0024] In one embodiment, the liquid supply component 24 includes a liquid storage tank 241 and a liquid pump 242. The liquid storage tank 241 contains coolant, and the outlet of the liquid storage tank 241 is connected to the liquid inlet conduit 222 via the liquid pump 242.

[0025] Furthermore, the inlet of the liquid storage tank 241 is connected to the outlet pipe 223, allowing the coolant to flow back into the liquid storage tank 241 for recycling. The top of the liquid storage tank 241 is open to accelerate the heat dissipation of the coolant. In other embodiments, a stirring element can also be installed on the liquid storage tank 241 to stir the coolant, which can further accelerate the heat dissipation of the coolant.

[0026] In one embodiment, the cover 21 is installed on one side of the housing 11, and the air outlet of the cover 21 corresponds to the air supply end of the housing 11; the sealing member 25 includes a telescopic part 251 and a baffle 252, the telescopic part 251 is fixedly connected to the cover 21, the output end of the telescopic part 251 is fixedly connected to the baffle 252, and the telescopic part 251 can drive the baffle 252 to move relative to the air outlet of the cover 21 so that the baffle 252 abuts against or separates from the air outlet.

[0027] It is understandable that when the baffle 252 is driven to abut against the cover 21 by the telescopic part 251, the baffle 252 can block the air outlet to close the air outlet.

[0028] Based on the above solution, in order to ensure the airtightness of the drying chamber, the sealing component 25 further includes a sealing ring 253, which is installed on the baffle 252 and can surround the edge of the air outlet.

[0029] It should be noted that the telescopic part 251 is an electric cylinder, and the telescopic part 251, the liquid pump 242, the air guide 23 and the air extraction part 12 are all electrically connected to the controller.

[0030] In one embodiment, at least one support mesh plate 13 is detachably installed in the drying chamber of the housing 11; it should be noted that two slots are provided on the opposite inner sidewalls of the drying chamber, and the opposite sides of the support mesh plate can be slidably inserted into the two slots respectively.

[0031] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A vacuum drying oven, characterized in that, include: A dryer includes a housing and an exhaust device, wherein a drying chamber is provided inside the housing and the exhaust device is connected to the drying chamber. as well as, The cooling mechanism includes a cover, a heat exchanger, a liquid supply unit, and a sealing unit. The cover has a cavity, and the two opposite ends of the cover are respectively provided with an air inlet and an air outlet connected to the cavity. The air outlet is connected to a drying chamber. The heat exchanger is installed on the cover and divides the cavity into multiple heat exchange zones, and the multiple heat exchange zones are all connected to the air inlet and the air outlet. The liquid supply unit is connected to the heat exchanger and can supply coolant to the heat exchanger. The sealing unit is installed on the cover and can selectively close or open the air outlet.

2. A vacuum drying oven according to claim 1, characterized in that, The heat exchanger includes multiple partitions, an inlet conduit, and an outlet conduit. The multiple partitions are spaced apart and installed in parallel within the cavity. The heat exchange zone is formed between two adjacent partitions. Each partition has a liquid guiding channel, and the inlets of the liquid guiding channels on the multiple partitions are all connected to the inlet conduit. The outlets of the liquid guiding channels on the multiple partitions are all connected to the outlet conduit. The inlet conduit is connected to the liquid supply component.

3. A vacuum drying oven according to claim 2, characterized in that, Multiple heat exchange fins are provided on both opposite sides of the multiple partitions.

4. A vacuum drying oven according to claim 1, characterized in that, A filter screen is installed on the cover corresponding to the air inlet end; The cooling mechanism also includes an air guide, which is installed inside the cover and corresponds to the air inlet.

5. A vacuum drying oven according to claim 2, characterized in that, The liquid supply component includes a liquid storage tank and a liquid pump. The liquid storage tank contains coolant, and the outlet of the liquid storage tank is connected to the liquid inlet pipe via the liquid pump.

6. A vacuum drying oven according to claim 5, characterized in that, The inlet of the liquid storage tank is connected to the outlet pipe.

7. A vacuum drying oven according to claim 1, characterized in that, The cover is installed on one side of the box, and the air outlet of the cover corresponds to the air supply end of the box. The sealing component includes a telescopic part and a baffle. The telescopic part is fixedly connected to the cover body, and the output end of the telescopic part is fixedly connected to the baffle. The telescopic part can drive the baffle to move relative to the air outlet end of the cover body so that the baffle can abut or separate from the air outlet end.

8. A vacuum drying oven according to claim 7, characterized in that, The sealing component also includes a sealing ring, which is installed on the baffle and can surround the edge of the air outlet.

9. A vacuum drying oven according to claim 8, characterized in that, The telescopic part is an electric cylinder.

10. A vacuum drying oven according to claim 1, characterized in that, At least one support mesh plate is detachably installed inside the drying chamber of the box.

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