Dehydrated vegetable drying waste heat recovery device

Abstract

The utility model discloses a dehydrated vegetable drying waste heat recovery device, which is applied to the field of dehydrated vegetable processing and comprises a dehydration box, a placing frame is arranged in the dehydration box, a dehumidification mechanism is arranged at the top of the dehydration box, a waste heat recovery mechanism is arranged on the dehumidification mechanism, and the waste heat recovery mechanism is connected with the dehydration box. The waste heat recovery mechanism extends to the bottom of the dehydration box, by arranging the dehydration box, the placing frame, the dehumidification mechanism and the waste heat recovery mechanism, during use, vegetables can be firstly placed on the placing frame in the dehydration box, then the vegetables are dried, at the moment, waste heat generated by drying the vegetables can enter the dehumidification mechanism, and the dehumidification mechanism is used for dehumidifying the vegetables. And moisture carried in the waste heat is absorbed through the dehumidification mechanism, then dry hot air enters the waste heat recovery mechanism, the vegetables in the dehydration box are continuously dried, and the heat utilization efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dehydrated vegetable processing, and particularly relates to a dehydrated vegetable drying waste heat recovery device. Background Art

[0002] Dehydrated vegetables need to be dried during the processing to remove excess water from the vegetables. The degree of dryness of the vegetables directly affects the shelf life of the vegetables, so dehydrated vegetable drying is an extremely important link in the vegetable processing process. Waste heat is energy that is not utilized in energy utilization equipment under certain economic and technical conditions, that is, excess and waste energy. Waste heat recovery and utilization is an important way to improve economy and save fuel.

[0003] The Chinese utility model patent currently announced as: CN214629731 U discloses a dehydrated vegetable drying waste heat recovery device, the mesh plate is slidably arranged on the slide bar, the inner cavity peripheral wall of the box body is embedded and fixed with a heating tube, the output end of the No. 1 electric telescopic rod passes through the top of the box body and is fixed to the No. 1 compression plate, the No. 1 compression plate is a middle opening structure, the output end of the No. 2 electric telescopic rod passes through the top of the box body and is fixed to the No. 2 compression plate, the No. 2 compression plate is movably arranged in the opening in the middle of the No. 1 compression plate, one end of the air guide pipe is connected with the top of the box body, the other end of the air guide pipe is connected with the lower end of the side wall of the box body, a fan and an electric valve are arranged in the air guide pipe, one end of the No. 1 connecting pipe is connected with the air guide pipe, and the other end of the No. 1 connecting pipe is connected with the outlet pipe, and a box door is swivel-connected in the opening on the box body at the front end of the mesh plate by a hinge, the design is reasonable, the waste heat is used to dry the vegetables first, and the heat utilization rate is improved.

[0004] This patent can utilize the waste heat generated during the dehydration process of vegetables, so that the waste heat can be used to repeatedly dry the vegetables, thereby improving the utilization rate of heat. However, during the dehydration process of vegetables, the waste heat generated will carry some moisture in the vegetables. If the water vapor in the waste heat is not removed and the vegetables are directly dried using the waste heat, the drying quality of the vegetables will be easily affected. Utility Model Content

[0005] The utility model aims to provide a device for recovering waste heat from drying dehydrated vegetables, which solves the problem that in the process of dehydrating vegetables, the waste heat generated will carry part of the moisture in the vegetables. If the water vapor in the waste heat is not removed and the vegetables are directly dried using the waste heat, the drying quality of the vegetables will be easily affected.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a dehydrated vegetable drying waste heat recovery device, comprising a dehydration box, a placement rack is arranged inside the dehydration box, a dehumidification mechanism is arranged on the top of the dehydration box, a waste heat recovery mechanism is arranged on the dehumidification mechanism, and the waste heat recovery mechanism extends to the bottom of the dehydration box;

[0007] The dehumidification mechanism includes a through groove, a fixed frame, a sealing cover, a connecting column, an activated carbon plate, a handle and an air outlet pipe. The through groove is opened at the upper end of the dehydration box, the fixed frame is arranged at the upper end of the dehydration box, the through groove is located inside the fixed frame, the sealing cover is arranged at the upper end of the fixed frame, the sealing cover and the fixed frame are detachable, the connecting column is arranged at the lower end of the sealing cover, the activated carbon plate is arranged on the surface of the connecting column, the number of the activated carbon plates is several and evenly arranged, the handle is arranged at the upper end of the sealing cover, and the air outlet pipe is arranged at the upper end of the sealing cover.

[0008] By adopting the above technical scheme, by setting a dehydration box, a placement rack, a dehumidification mechanism and a waste heat recovery mechanism, when in use, the vegetables can first be placed on the placement rack in the dehydration box, and then the vegetables are dried. At this time, the waste heat generated by drying the vegetables can enter the dehumidification mechanism, and the moisture carried in the waste heat is absorbed by the dehumidification mechanism. Then, the dry hot air enters the waste heat recovery mechanism, and the vegetables in the dehydration box are continued to be dried, thereby improving the heat utilization efficiency. The dehumidification mechanism includes a through groove, a fixing frame, a sealing cover, a connecting column, an activated carbon plate, Handle and air outlet pipe, first use the handle to fix the sealing cover on the fixed frame and seal the fixed frame. When the vegetables in the dehydration box are dried, the waste heat can enter the fixed frame from the through groove. Since the waste heat will carry part of the water vapor in the vegetables, the activated carbon board can absorb the moisture in the waste heat at this time, and then discharge the dry hot air through the air outlet pipe. Since the sealing cover and the fixed frame are detachable, when the activated carbon board absorbs enough water, the sealing cover can be removed and the activated carbon board can be replaced, thereby improving the efficiency of the activated carbon board in absorbing moisture in the waste heat.

[0009] The utility model is further configured as follows: the waste heat recovery mechanism includes a blower, a heating chamber, an electric heating plate, a recovery pipe and a recovery pump, the blower is arranged on the lower surface of the dehydration box, the heating chamber is arranged on the inner bottom of the dehydration box, the electric heating plate is arranged inside the heating chamber, the number of the electric heating plates is several and they are arranged linearly, one end of the recovery pipe is arranged on the air outlet pipe, the other end of the recovery pipe extends to the inside of the heating chamber, and the recovery pump is arranged on the recovery pipe.

[0010] The above technical scheme is adopted, by setting a blower, a heating chamber, an electric heating plate, a recovery pipe and a recovery pump. When in use, the outside air is first discharged into the heating chamber through the blower, and then the air is heated by the electric heating plate, so that the hot air dries the vegetables. Then, the residual heat of drying after the activated carbon plate absorbs moisture enters the recovery pipe, and the residual heat is transferred to the heating chamber through the recovery pump, so that the residual heat continues to dry the vegetables, thereby improving the heat utilization efficiency.

[0011] The utility model is further configured as follows: a drying groove is arranged at the upper end of the heating cavity, the number of the drying grooves is two and they are arranged symmetrically, a guide cavity is arranged above the drying groove, and the guide cavity is arranged corresponding to the placement rack.

[0012] By adopting the above technical scheme, a drying trough and a guide cavity are set up. When in use, the hot air in the heating cavity can first be discharged to the inside of the dehydration box through the drying trough, and then the hot air can be evenly guided to the bottom of the placement rack through the guide cavity, which can better dry the vegetables.

[0013] The utility model is further configured as follows: a temperature sensor is arranged on the inner top of the dehydration box, a controller and a display are arranged on the side wall of the dehydration box, and electrical components such as the controller, the display, the temperature sensor, etc. are all electrically connected.

[0014] By adopting the above technical solution, by setting up a temperature sensor, a controller and a display, when in use, the temperature sensor can monitor the temperature inside the dehydration box and display the temperature inside the dehydration box on the display, and then the voltage flowing through the electric heating plate is changed by the controller to change the temperature of the air heating, thereby realizing temperature regulation and more intelligent drying of the output.

[0015] The utility model is further configured as follows: a sealing door is arranged on one side of the dehydration box, the sealing door is hinged to the dehydration box, the number of the sealing doors is two and they are symmetrically arranged, and a handle is arranged on the sealing door.

[0016] By adopting the above technical solution, by providing a sealing door and a handle, when in use, first the sealing door can seal the dehydration box to avoid heat loss inside the dehydration box, and then the handle can provide a fulcrum for the user.

[0017] The utility model is further configured as follows: a support column for increasing the clearance of the dehydration box from the ground is arranged at the bottom of the dehydration box, and an anti-slip pad is arranged on the lower surface of the support column.

[0018] By adopting the above technical solution, by setting support columns and anti-slip mats, when in use, first the support columns can increase the ground clearance of the dehydration box, which can facilitate the installation of the recovery pipe, and then the anti-slip mats can increase the contact area between the support columns and the ground, further improving the stability of the dehydration box.

[0019] The utility model is further configured as follows: a supporting portion for providing support for the activated carbon plate is provided at the lower end of the fixing frame.

[0020] By adopting the above technical solution and providing the support part, when the sealing cover is arranged on the fixing frame, the support part can provide support for the activated carbon plate.

[0021] In summary, the utility model has the following beneficial effects:

[0022] By arranging a through groove, a fixed frame, a sealing cover, a connecting column, an activated carbon board, a handle and an air outlet pipe, the sealing cover is first fixed to the fixed frame by the handle, and the fixed frame is sealed. When the vegetables in the dehydration box are dried, the waste heat can enter the fixed frame from the through groove. Since the waste heat will carry part of the water vapor in the vegetables, the activated carbon board can absorb the moisture in the waste heat at this time, and then discharge the dry hot air through the air outlet pipe. Since the sealing cover and the fixed frame are detachable, when the activated carbon board has absorbed enough water, the sealing cover can be removed and the activated carbon board can be replaced, thereby improving the efficiency of the activated carbon board in absorbing water in the waste heat.

[0023] By arranging a blower, a heating chamber, an electric heating plate, a recovery pipe and a recovery pump, when in use, first the outside air is discharged into the heating chamber through the blower, and then the air is heated by the electric heating plate, so that the hot air dries the vegetables, and then the drying residual heat after the activated carbon plate absorbs moisture enters the recovery pipe, and the residual heat is transferred to the heating chamber through the recovery pump, so that the residual heat continues to dry the vegetables, thereby improving the heat utilization efficiency.

[0024] Based on the above-mentioned improvements, the overall technical effect achieved by the present device is to dehumidify the waste heat generated during the dehydration process of vegetables, thereby preventing the moisture in some vegetables carried in the waste heat from affecting the drying quality of the vegetables. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a left view of the utility model;

[0027] Figure 3 The utility model Figure 2 Stereoscopic autopsy diagram at AA in the middle;

[0028] Figure 4 It is a structural schematic diagram of the dehumidification mechanism of the utility model.

[0029] In the figure, 1. dehydration box; 2. placement rack; 3. dehumidification mechanism; 4. waste heat recovery mechanism; 5. drying tank; 6. guide chamber; 7. temperature sensor; 8. controller; 9. display; 10. sealing door; 11. handle; 12. support column; 13. anti-slip mat; 14. support part; 301. through groove; 302. fixing frame; 303. sealing cover; 304. connecting column; 305. activated carbon plate; 306. handle; 307. exhaust pipe; 401. blower; 402. heating chamber; 403. electric heating plate; 404. recovery pipe; 405. recovery pump. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] Example:

[0032] See also Figure 1-Figure 4 The utility model provides a technical solution: a dehydrated vegetable drying waste heat recovery device, comprising a dehydration box 1, a placement rack 2 is arranged inside the dehydration box 1, a dehumidification mechanism 3 is arranged on the top of the dehydration box 1, a waste heat recovery mechanism 4 is arranged on the dehumidification mechanism 3, and the waste heat recovery mechanism 4 extends to the bottom of the dehydration box 1;

[0033] The dehumidification mechanism 3 includes a through groove 301, a fixed frame 302, a sealing cover 303, a connecting column 304, an activated carbon plate 305, a handle 306 and an air outlet pipe 307. The through groove 301 is opened at the upper end of the dehydration box 1, the fixed frame 302 is arranged at the upper end of the dehydration box 1, the through groove 301 is located inside the fixed frame 302, the sealing cover 303 is arranged at the upper end of the fixed frame 302, the sealing cover 303 and the fixed frame 302 are detachable, the connecting column 304 is arranged at the lower end of the sealing cover 303, the activated carbon plate 305 is arranged on the surface of the connecting column 304, the number of activated carbon plates 305 is several and evenly arranged, the handle 306 is arranged at the upper end of the sealing cover 303, and the air outlet pipe 307 is arranged at the upper end of the sealing cover 303.

[0034] By providing the dehydration box 1, the placement rack 2, the dehumidification mechanism 3 and the waste heat recovery mechanism 4, when in use, the vegetables can first be placed on the placement rack 2 in the dehydration box 1, and then the vegetables are dried. At this time, the waste heat generated by drying the vegetables can enter the dehumidification mechanism 3, and the moisture carried in the waste heat is absorbed by the dehumidification mechanism 3, and then the dry hot air enters the waste heat recovery mechanism 4, and the vegetables in the dehydration box 1 are continued to be dried, thereby improving the heat utilization efficiency;

[0035] First, the sealing cover 303 is fixed to the fixed frame 302 by the handle 306, and the fixed frame 302 is sealed. When the vegetables in the dehydration box 1 are dried, the residual heat can enter the fixed frame 302 from the through groove 301. Since the residual heat will carry part of the water vapor in the vegetables, the activated carbon plate 305 can absorb the moisture in the residual heat, and then discharge the dry hot air through the exhaust pipe 307. Since the sealing cover 303 and the fixed frame 302 are detachable, when the activated carbon plate 305 absorbs enough moisture, the sealing cover 303 can be removed and the activated carbon plate 305 can be replaced, thereby improving the efficiency of the activated carbon plate 305 in absorbing moisture in the residual heat.

[0036] refer to Figure 3 The waste heat recovery mechanism 4 includes a blower 401, a heating chamber 402, an electric heating plate 403, a recovery pipe 404 and a recovery pump 405. The blower 401 is arranged on the lower surface of the dehydration box 1, the heating chamber 402 is arranged on the inner bottom of the dehydration box 1, the electric heating plate 403 is arranged inside the heating chamber 402, the number of the electric heating plates 403 is several and they are arranged linearly, one end of the recovery pipe 404 is arranged on the air outlet pipe 307, and the other end of the recovery pipe 404 extends to the inside of the heating chamber 402. The recovery pump 405 is arranged on the recovery pipe 404, through A blower 401, a heating chamber 402, an electric heating plate 403, a recovery pipe 404 and a recovery pump 405 are provided. When in use, the outside air is first discharged into the heating chamber 402 through the blower 401, and then the air is heated by the electric heating plate 403, so that the hot air dries the vegetables. Then, the residual heat of drying after the activated carbon plate 305 absorbs moisture enters the recovery pipe 404, and the residual heat is transferred to the heating chamber 402 through the recovery pump 405, so that the residual heat continues to dry the vegetables, thereby improving the heat utilization efficiency.

[0037] refer to Figure 3 A drying slot 5 is provided at the upper end of the heating chamber 402, and there are two drying slots 5 that are symmetrically arranged. A guide chamber 6 is provided above the drying slot 5, and the guide chamber 6 is arranged corresponding to the placement rack 2. By setting the drying slot 5 and the guide chamber 6, when in use, the hot air in the heating chamber 402 can first be discharged to the inside of the dehydration box 1 through the drying slot 5, and then the hot air can be evenly guided to the bottom of the placement rack 2 through the guide chamber 6, so that the vegetables can be better dried.

[0038] refer to Figure 1 and Figure 3A temperature sensor 7 is provided on the inner top of the dehydration box 1, and a controller 8 and a display 9 are provided on the side wall of the dehydration box 1. The controller 8, the display 9, the temperature sensor 7 and other electrical components are electrically connected. By providing the temperature sensor 7, the controller 8 and the display 9, when in use, the temperature sensor 7 can monitor the temperature inside the dehydration box 1 and display the temperature inside the dehydration box 1 on the display 9. Then, by changing the voltage flowing through the electric heating plate 403 through the controller 8, the temperature of the air heating can be changed, thereby realizing the temperature adjustment and drying the output more intelligently.

[0039] refer to Figure 1 A sealing door 10 is provided on one side of the dehydration box 1. The sealing door 10 is hinged to the dehydration box 1. There are two sealing doors 10 and they are symmetrically arranged. A handle 11 is provided on the sealing door 10. By arranging the sealing door 10 and the handle 11, when in use, first the sealing door 10 can seal the dehydration box 1 to avoid heat loss inside the dehydration box 1, and then the handle 11 can provide a fulcrum for the user.

[0040] refer to Figure 1 A support column 12 is provided at the bottom of the dehydration box 1 to increase the ground clearance of the dehydration box 1, and an anti-slip pad 13 is provided on the lower surface of the support column 12. By setting the support column 12 and the anti-slip pad 13, when in use, firstly the support column 12 can increase the ground clearance of the dehydration box 1, which can facilitate the installation of the recovery pipe 404, and then the anti-slip pad 13 can increase the contact area between the support column 12 and the ground, thereby further improving the stability of the dehydration box 1.

[0041] refer to Figure 4 A support portion 14 for supporting the activated carbon plate 305 is provided at the lower end of the fixed frame 302 . By providing the support portion 14 , when the sealing cover 303 is provided on the fixed frame 302 , the support portion 14 can provide support for the activated carbon plate 305 .

[0042] Brief description of the use process: When in use, first fix the sealing cover 303 on the fixing frame 302 through the handle 306 to seal the fixing frame 302. When the vegetables in the dehydration box 1 are dried, the waste heat can enter the fixing frame 302 from the through groove 301. Since the waste heat will carry part of the water vapor in the vegetables, the activated carbon board 305 can absorb the moisture in the waste heat at this time, and then discharge the dry hot air through the outlet pipe 307. Since the sealing cover 303 and the fixing frame 302 are detachable, when the activated carbon board 305 absorbs enough water, the sealing cover 303 can be removed and the activated carbon board 305 can be replaced to improve the absorption capacity of the activated carbon board 305. The efficiency of collecting moisture in the waste heat is then increased, and the outside air is discharged into the heating chamber 402 through the blower 401, and then the air is heated by the electric heating plate 403, so that the hot air dries the vegetables, and then the drying waste heat after the activated carbon plate 305 absorbs moisture enters the recovery pipe 404, and the waste heat is transferred to the heating chamber 402 through the recovery pump 405, so that the waste heat continues to dry the vegetables, thereby improving the heat utilization efficiency, and then the hot air in the heating chamber 402 can be discharged to the inside of the dehydration box 1 through the drying tank 5, and then the hot air can be evenly guided to the bottom of the placement rack 2 through the guide chamber 6, which can better dry the vegetables.

[0043] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A device for recovering waste heat from drying of dehydrated vegetables, comprising a dehydration box (1), characterized in that: A placement rack (2) is arranged inside the dehydration box (1), a dehumidification mechanism (3) is arranged on the top of the dehydration box (1), a waste heat recovery mechanism (4) is arranged on the dehumidification mechanism (3), and the waste heat recovery mechanism (4) extends to the bottom of the dehydration box (1); The dehumidification mechanism (3) comprises a through groove (301), a fixing frame (302), a sealing cover (303), a connecting column (304), an activated carbon plate (305), a handle (306) and an air outlet pipe (307), wherein the through groove (301) is opened at the upper end of the dehydration box (1), the fixing frame (302) is arranged at the upper end of the dehydration box (1), the through groove (301) is located inside the fixing frame (302), and the sealing cover (303) is arranged on the fixing frame (302). The upper end of the fixed frame (302), the sealing cover (303) and the fixed frame (302) are detachably arranged, the connecting column (304) is arranged at the lower end of the sealing cover (303), the activated carbon plate (305) is arranged on the surface of the connecting column (304), the number of the activated carbon plates (305) is several and evenly arranged, the handle (306) is arranged at the upper end of the sealing cover (303), and the air outlet pipe (307) is arranged at the upper end of the sealing cover (303).

2. The device for recovering waste heat from drying dehydrated vegetables according to claim 1, characterized in that: The waste heat recovery mechanism (4) comprises a blower (401), a heating chamber (402), an electric heating plate (403), a recovery pipe (404) and a recovery pump (405); the blower (401) is arranged on the lower surface of the dehydration box (1); the heating chamber (402) is arranged on the inner bottom of the dehydration box (1); the electric heating plate (403) is arranged inside the heating chamber (402); the number of the electric heating plates (403) is several and they are arranged linearly; one end of the recovery pipe (404) is arranged on the air outlet pipe (307); the other end of the recovery pipe (404) extends to the inside of the heating chamber (402); and the recovery pump (405) is arranged on the recovery pipe (404).

3. The device for recovering waste heat from drying dehydrated vegetables according to claim 2, characterized in that: A drying groove (5) is arranged at the upper end of the heating chamber (402), the drying grooves (5) are two in number and are arranged symmetrically, a guide cavity (6) is arranged above the drying grooves (5), and the guide cavity (6) is arranged corresponding to the placement rack (2).

4. The device for recovering waste heat from drying dehydrated vegetables according to claim 1, characterized in that: A temperature sensor (7) is arranged on the inner top of the dehydration box (1), and a controller (8) and a display (9) are arranged on the side wall of the dehydration box (1); the controller (8), the display (9) and the temperature sensor (7) are all electrically connected.

5. The device for recovering waste heat from drying dehydrated vegetables according to claim 1, characterized in that: A sealed door (10) is provided on one side of the dehydration box (1), the sealed door (10) is hinged to the dehydration box (1), there are two sealed doors (10) and they are symmetrically arranged, and a handle (11) is provided on the sealed door (10).

6. The device for recovering waste heat from drying dehydrated vegetables according to claim 1, characterized in that: A support column (12) is provided at the bottom of the dehydration box (1) to increase the clearance of the dehydration box (1) from the ground, and an anti-slip pad (13) is provided on the lower surface of the support column (12).

7. The device for recovering waste heat from drying dehydrated vegetables according to claim 1, characterized in that: A support portion (14) for supporting the activated carbon plate (305) is provided at the lower end of the fixing frame (302).

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