Air blast drying box for corn food production
By installing a condenser tube and a bent vacuum heat pipe system in the forced-air drying oven, the outside air is first dehumidified and heated, and then the waste heat is recovered in a vacuum environment. This solves the problems of low drying efficiency and poor waste heat recovery in high humidity environments, and achieves efficient drying and waste heat utilization.
Patent Information
- Application Number
- CN202520432095.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In high-humidity working environments, directly heating and inputting humid air into the blower drying box will result in a high initial moisture content of the hot air, reducing drying efficiency. Furthermore, the return of humid and hot exhaust gas to the intake duct increases air humidity, further reducing drying efficiency, while waste heat recovery efficiency is poor.
Design a forced-air drying oven for corn food production. The oven uses a condenser tube and a bent vacuum heat pipe system to first dehumidify and heat the outside air before sending it into the drying oven to dry the food. The oven also recovers residual heat in a vacuum environment to reduce heat loss.
This improved drying efficiency and enabled efficient waste heat recovery, reducing heat loss during conduction and ensuring efficient drying.
Smart Images
Figure CN223826642U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to food production drying technical field especially, it is a kind of corn food production with air blast drying oven. BACKGROUND
[0002] Corn food production with air blast drying oven is a kind of equipment for drying treatment in corn food production process, it is heated by heating wire in the box air, simultaneously utilize air blower and make hot air evenly into drying chamber, make material surface moisture evaporate quickly, reach the purpose of drying.
[0003] But in the high humidity working environment, if directly heating the air with high humidity and inputting drying chamber of air blast drying oven, it can lead to the initial moisture content of hot air carrying is high, thereby reducing drying efficiency, in addition, although part of humid waste gas exhausted by equipment is introduced into inlet pipeline again, it can realize waste heat recovery, but the humidity in waste gas can be superimposed with external high humidity air, further increase the humidity of drying air, lead to drying efficiency further reduces.
[0004] Therefore, in view of above-mentioned in high humidity working environment, if directly heating the air with high humidity and inputting drying chamber of air blast drying oven, the initial high moisture content of hot air can reduce drying efficiency, and part of humid waste gas exhausted by equipment is introduced into inlet pipeline again, although it can realize waste heat recovery, but the humidity in waste gas can further increase the humidity of drying air, lead to drying efficiency further reduces, corn food production with air blast drying oven can be designed to dehumidify external air first, then heat it, and then send dry hot air into the box to dry food, to improve the drying efficiency of food, and through the bending vacuum heat pipe, under the premise that part of humid hot air does not flow back into heating pipe, it can realize waste heat recovery, and the recovered waste heat is not easy to lose in the process of conduction to heating pipe, thereby solving the above problems. SUMMARY
[0005] In order to overcome the problem that in the use process of air blast drying oven, if the air humidity in working environment is high, directly heating external air and inputting drying chamber of air blast drying oven can lead to the initial moisture content of hot air carrying is high, thereby reducing drying efficiency, in addition, part of humid waste gas exhausted by equipment is introduced into inlet pipeline again, although it can realize waste heat recovery, but the humidity in waste gas can further increase the humidity of drying air, lead to drying efficiency further reduces.
[0006] The utility model discloses a technical scheme for a blast drying box for corn food production, comprising a box body, a condenser pipe and a bent vacuum heat pipe, a shunt pipe is installed on one side of the box body, a heat preservation manifold is installed on the other side of the box body, an exhaust pipe is fixedly connected to the lower end of the heat preservation manifold, a heating pipe is fixedly connected to the lower end of the shunt pipe, a condenser pipe is fixedly connected to the lower end of one side of the heating pipe, a resistance heater is installed on the lower end surface of the heating pipe, a semiconductor refrigeration wafer is installed on the lower end surface of the condenser pipe, a water collecting box is connected to the lower end surface of one side of the condenser pipe in a communicating and sliding manner, bent vacuum heat pipes are arranged on the front and rear ends of one side of the heating pipe, the bent vacuum heat pipes comprise a heat pipe low thermal conductivity wall, heat pipe high thermal conductivity walls are fixedly connected to the front and rear ends of the heat pipe low thermal conductivity wall, the heating pipe and the exhaust pipe are attached to the heat pipe high thermal conductivity walls, and the interior between the heat pipe low thermal conductivity wall and the heat pipe high thermal conductivity wall is provided with vacuum and contains pure water.
[0007] Preferably, external air enters the condenser pipe, the heating pipe, the shunt pipe, the exhaust pipe and the interior of the box body in sequence through the air blower, the semiconductor refrigeration wafer cools the air in the condenser pipe to condense the moisture in the air, the condensed water flows along the inner wall of the condenser pipe to one side and flows into the water collecting box to be collected, the resistance heater heats the dehumidified air in the heating pipe, the dry hot air is uniformly sent into the box body through the shunt pipe and the exhaust pipe to dry the food, the air in the box body carries the moisture in the food into the heat preservation manifold and is discharged from the exhaust pipe, the wet hot air transfers heat to the heat pipe low thermal conductivity wall at the lower end and the pure water in the bent vacuum heat pipe when flowing in the exhaust pipe, the pure water absorbs the heat from the wet hot air in the vacuum environment and evaporates and floats up, the water vapor condenses and flows back downward after the heating pipe absorbs the heat of the water vapor through the heat pipe low thermal conductivity wall at the upper end, the collected waste heat in the bent vacuum heat pipe is not easily lost to the outside through the heat pipe low thermal conductivity wall due to the low thermal conductivity of the heat pipe low thermal conductivity wall, thereby reducing the loss of the waste heat in the process of conduction to the heating pipe, and the air in the heating pipe is heated by the waste heat recovered by the bent vacuum heat pipe first and then by the resistance heater.
[0008] Preferably, heat conducting frames are fixedly connected to the interiors of the heating pipe and the condenser pipe, and an air blower is installed on the other side of the condenser pipe.
[0009] Preferably, a plurality of heat pipe inner supports are fixedly connected to the interior of the heat pipe low thermal conductivity wall, and flow-through grooves are formed in the front and rear ends of the heat pipe inner supports.
[0010] Preferably, two exhaust pipes are fixedly connected to the interior of the box body in an up-down distribution, and the exhaust pipes are in communication with the shunt pipe.
[0011] Preferably, a storage rack is arranged on the upper end of each of the two exhaust pipes, and the storage rack is fixedly connected to the inner wall of the box body.
[0012] Preferably, the front end of the box body is fixedly connected with a hasp, and the lower end of the box body is fixedly connected with a base, and the base is internally fixedly connected with a plurality of cushion beams.
[0013] Preferably, the front end of the box body is fixedly connected with a hasp, and the lower end of the box body is fixedly connected with a base, and the base is internally fixedly connected with a plurality of cushion beams.
[0014] Preferably, the lower end of the low-heat-conducting wall of the heating pipe, the condensing pipe and the heat pipe, and the middle of the exhaust pipe are all provided with cushion beams, and the water collecting box is slidably connected with the base.
[0015] The utility model discloses beneficial effects:
[0016] 1. By setting up heating pipe, condensing pipe, resistance heater, semiconductor refrigeration wafer and water collecting box, let outside air pass through the blower fan and enter the inside of condensing pipe, heating pipe, shunt pipe, exhaust pipe and box in proper order, and the semiconductor refrigeration wafer carries out the cooling to the air in condensing pipe, to condense the moisture in the air in condensing pipe, and the condensed water flows along the inner wall of condensing pipe to one side and flows into water collecting box to complete the collection, and the resistance heater also carries out the temperature rise to the dehumidified air in heating pipe, and then through shunt pipe and exhaust pipe, dry hot air is sent into the box and is used for drying food, and then the air in the box carries the moisture in food and enters the heat preservation manifold and is discharged from the exhaust pipe, so that the outside air can be dehumidified first, and then the dry hot air is sent into the box to dry food, so as to improve the drying efficiency of food.
[0017] 2. By setting up the bending vacuum heat pipe, when the wet hot waste gas flows in the exhaust pipe, the heat is transferred to the heat pipe low heat conducting wall at the lower end and the pure water in the bending vacuum heat pipe, the pure water absorbs the heat from the wet hot air in the vacuum environment and evaporates and floats up, and after the heating pipe absorbs the heat of water vapor through the heat pipe low heat conducting wall at the upper end, the water vapor condenses and flows back downward, and because of the low heat conductivity of the heat pipe low heat conducting wall, the waste heat collected in the bending vacuum heat pipe is not easy to flow out through the heat pipe low heat conducting wall, so as to reduce the loss of the waste heat in the process of conduction to the heating pipe, and the air in the heating pipe is heated by the waste heat recovered by the bending vacuum heat pipe first, and then heated by the resistance heater, so that the waste heat recovery can be realized without making part of the wet hot air flow back into the heating pipe, and the loss of the collected waste heat in the process of conduction to the heating pipe is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The whole structure of the utility model discloses a kind of corn food production with blast drying cabinet is shown as a whole structure schematic diagram;
[0019] Figure 2 The heat preservation manifold structure schematic diagram of the utility model discloses a kind of corn food production with blast drying cabinet is shown.
[0020] Figure 3 The heat conducting frame structure schematic diagram of the corn food production air blast drying oven is shown;
[0021] Figure 4 The heat pipe low heat conducting wall structure schematic diagram of the corn food production air blast drying oven is shown;
[0022] Figure 5 The heat pipe inner support structure schematic diagram of the corn food production air blast drying oven is shown;
[0023] Figure 6 The shelf structure schematic diagram of the corn food production air blast drying oven is shown.
[0024] Mark explanation: 1, box; 2, exhaust pipe; 3, shunt; 4, heating pipe; 5, condenser pipe; 6, heat conducting frame; 7, resistance heater; 8, semiconductor refrigeration wafer; 9, water collecting box; 10, air blower; 11, heat preservation manifold; 12, exhaust pipe; 1301, heat pipe low heat conducting wall; 1302, heat pipe high heat conducting wall; 1303, heat pipe inner support; 1304, flow-through groove; 14, shelf; 15, hinge; 16, door; 17, buckle; 18, base; 19, cushion beam plate. DETAILED DESCRIPTION
[0025] The utility model will be further explained in connection with the drawings and examples.
[0026] Please refer to Figures 1-6The utility model provides a kind of embodiment: a corn food production is used blast drying oven, including box 1;Still including condenser pipe 5 and bending vacuum heat pipe, the side of box 1 is equipped with shunt pipe 3, the other side of box 1 is equipped with heat preservation manifold 11, the lower end of heat preservation manifold 11 front and rear end is all fixed with exhaust pipe 12, the lower end of shunt pipe 3 is fixed with heating pipe 4, the lower end of heating pipe 4 side is fixed with condenser pipe 5, the lower end surface of heating pipe 4 is equipped with resistance heater 7, the lower end surface of condenser pipe 5 is equipped with semiconductor refrigeration wafer 8, the lower end surface of condenser pipe 5 side is communicated and slidingly connected with water collecting box 9, the front and rear end of heating pipe 4 side is all provided with bending vacuum heat pipe, bending vacuum heat pipe includes heat pipe low thermal conductivity wall 1301, the front and rear end of heat pipe low thermal conductivity wall 1301 is all fixed with heat pipe high thermal conductivity wall 1302, heating pipe 4 and exhaust pipe 12 are all with heat pipe high thermal conductivity wall 1302 adhesion, the inside between heat pipe low thermal conductivity wall 1301 and heat pipe high thermal conductivity wall 1302 is provided as vacuum and contains pure water, outside air enters condenser pipe 5, heating pipe 4, shunt pipe 3, exhaust pipe 2 and the inside of box 1 in proper order by air blower 10, while semiconductor refrigeration wafer 8 carries out cooling to air in condenser pipe 5, to condense the moisture in air in condenser pipe 5, condensate flows along condenser pipe 5 inner wall to one side, and flows into water collecting box 9 and is collected, and resistance heater 7 also carries out the temperature rise to the air in heating pipe 4 that is dehumidified, and then dry hot air stream is evenly sent into box 1 by shunt pipe 3 and exhaust pipe 2 and is dried to food material, subsequently, the moisture in food material is carried into heat preservation manifold 11 by air in box 1 and is discharged from exhaust pipe 12, and when wet hot air flows in exhaust pipe 12, heat is transferred to the pure water in heat pipe low thermal conductivity wall 1301 and bending vacuum heat pipe in lower end, pure water is evaporated and floats up after absorbing heat from wet hot air in vacuum environment, and after heating pipe 4 absorbs the heat of water vapor by the heat pipe low thermal conductivity wall 1301 of upper end, water vapor condenses and flows back, and because the low thermal conductivity of heat pipe low thermal conductivity wall 1301, the waste heat collected in bending vacuum heat pipe is not easy to flow outwards through heat pipe low thermal conductivity wall 1301, to reduce the loss of waste heat in the process of conduction to heating pipe 4.
[0027] Please refer to Figures 2-6The inside of the heating pipe 4 and the condensing pipe 5 is fixed with a heat conducting frame 6, the other side of the condensing pipe 5 is provided with a blower 10, the heating pipe 4 and the condensing pipe 5 can increase the heat exchange area and the heat exchange efficiency with air through the heat conducting frame 6 after conducting heat to the heat conducting frame 6, the blower 10 is used for sending external air into the condensing pipe 5, the inside of the low heat conducting wall 1301 of the heat pipe is fixed with a plurality of heat pipe inner supports 1303, the front and rear ends of the heat pipe inner support 1303 are provided with flow-through grooves 1304, the heat pipe inner support 1303 is used for supporting the inside of the bent vacuum heat pipe, the flow-through groove 1304 is used for evenly distributing the heat in the bent vacuum heat pipe with the flow of pure water and water vapor, and the pure water liquid level in the bent vacuum heat pipe is equal to half of the height of the bent vacuum heat pipe, the inside of the box body 1 is fixed with two upward and downward distributed exhaust pipes 2, the exhaust pipe 2 is communicated with the shunt pipe 3, the upper end of the two exhaust pipes 2 is provided with a storage rack 14, and the storage rack 14 is fixed with the inner wall of the box body 1, the upper end of the storage rack 14 is used for placing food materials.
[0028] Please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 6 , both sides of the front end face of the box body 1 are provided with box doors 16, the side end of the box door 16 is fixed with a hinge 15 through bolts, and the rear end of the hinge 15 is fixed with the box body 1 through bolts, the box door 16 needs to be closed during the drying process of the food materials, the front end of the box body 1 is fixed with a buckle 17, the lower end of the box body 1 is fixed with a base 18, a plurality of cushion beam plates 19 are fixed in the inside of the base 18, the buckle 17 is used for fixing the box door 16, the lower end of the heating pipe 4, the condensing pipe 5 and the low heat conducting wall 1301 of the heat pipe and the middle of the exhaust pipe 12 are provided with cushion beam plates 19, the water collecting box 9 is slidingly connected with the base 18, and the cushion beam plates 19 are used for supporting the heating pipe 4, the condensing pipe 5, the low heat conducting wall 1301 of the heat pipe and the exhaust pipe 12.
[0029] In use, the outside air enters the inside of the condensing pipe 5, the heating pipe 4, the shunt pipe 3, the exhaust pipe 2 and the box 1 in turn through the air blower 10, and the semiconductor refrigeration chip 8 cools the air in the condensing pipe 5 to condense the moisture in the air in the condensing pipe 5, and the condensed water flows along the inner wall of the condensing pipe 5 to one side and flows into the water collecting box 9 to complete the collection, and the resistance heater 7 also heats the dehumidified air in the heating pipe 4, and then the dry hot air is uniformly sent into the box 1 through the shunt pipe 3 and the exhaust pipe 2 to dry the food, and then the air in the box 1 carries the moisture in the food into the heat preservation manifold 11 and is discharged from the exhaust pipe 12, and the hot and humid air transfers heat to the pure water in the low thermal conductivity wall 1301 of the heat pipe at the lower end and the bending vacuum heat pipe when flowing in the exhaust pipe 12, the pure water evaporates and floats up after absorbing heat from the hot and humid air in the vacuum environment, and the water vapor condenses and flows back down after the heating pipe 4 absorbs the heat of the water vapor through the low thermal conductivity wall 1301 at the upper end, and because of the low thermal conductivity of the low thermal conductivity wall 1301 of the heat pipe, the residual heat collected in the bending vacuum heat pipe is not easy to flow out through the low thermal conductivity wall 1301 of the heat pipe, so as to reduce the loss of residual heat in the process of conduction to the heating pipe 4.
[0030] In addition, the heating pipe 4 and the condensing pipe 5 can increase the heat exchange area and efficiency of the heating pipe 4 and the condensing pipe 5 and the air through the heat conducting frame 6 after conducting heat to the heat conducting frame 6, and the heat pipe inner support 1303 is used to support the inside of the bending vacuum heat pipe, and the flow-through groove 1304 is used to evenly distribute the heat in the bending vacuum heat pipe with the flow of pure water and water vapor.
[0031] Through the above steps, by setting the heating pipe 4, the condensing pipe 5, the resistance heater 7, the semiconductor refrigeration chip 8, the water collecting box 9 and the bending vacuum heat pipe, the semiconductor refrigeration chip 8 cools the air in the condensing pipe 5 to condense the moisture in the air in the condensing pipe 5, and then the resistance heater 7 heats the dehumidified air in the heating pipe 4 to first dehumidify the outside air, then heat it, and then use it to dry the food, so as to improve the drying efficiency of the food, and the heat is transferred to the bending vacuum heat pipe by the hot and humid exhaust gas flowing in the exhaust pipe 12, and the residual heat recovered by the bending vacuum heat pipe is used to heat the air in the heating pipe 4, so as to improve the residual heat conduction efficiency and reduce the loss of residual heat in the process of conduction to the heating pipe 4, so that the residual heat can be recovered without making part of the hot and humid air flow back into the heating pipe 4, so as to ensure the drying efficiency.
Claims
1. A forced-air drying oven for corn food production, comprising a box body (1); characterized in that: It also includes a condenser (5) and a bent vacuum heat pipe. A manifold (3) is installed on one side of the housing (1), and an insulated manifold (11) is installed on the other side of the housing (1). An exhaust pipe (12) is fixed to the lower ends of both ends of the insulated manifold (11). A heating pipe (4) is fixed to the lower end of the manifold (3). A condenser (5) is fixed to the lower end of one side of the heating pipe (4). A resistance heater (7) is installed on the lower end face of the heating pipe (4). A semiconductor refrigeration chip (8) is installed on the lower end face of the condenser (5). 5) A water collection box (9) is connected and slidably connected to the lower end face of one side. A bent vacuum heat pipe is provided at both the front and rear ends of the heating pipe (4). The bent vacuum heat pipe includes a heat pipe low thermal conductivity wall (1301). A heat pipe high thermal conductivity wall (1302) is fixed to both the front and rear ends of the heat pipe low thermal conductivity wall (1301). The heating pipe (4) and the exhaust pipe (12) are both in contact with the heat pipe high thermal conductivity wall (1302). The interior between the heat pipe low thermal conductivity wall (1301) and the heat pipe high thermal conductivity wall (1302) is set as a vacuum and contains pure water.
2. The forced-air drying oven for corn food production according to claim 1, characterized in that: Heat-conducting frames (6) are fixed inside both the heating tube (4) and the condenser tube (5), and a blower (10) is installed on the other side of the condenser tube (5).
3. The forced-air drying oven for corn food production according to claim 1, characterized in that: Multiple heat pipe supports (1303) are fixed inside the low thermal conductivity wall (1301) of the heat pipe, and flow grooves (1304) are opened at the front and rear ends of the heat pipe supports (1303).
4. The forced-air drying oven for corn food production according to claim 1, characterized in that: The box (1) has two vertically distributed exhaust pipes (2) fixed inside, and the exhaust pipes (2) are connected to the diversion pipes (3).
5. A forced-air drying oven for corn food production according to claim 4, characterized in that: Both exhaust pipes (2) are equipped with shelves (14) at their upper ends, and the shelves (14) are fixed to the inner wall of the box (1).
6. A forced-air drying oven for corn food production according to claim 1, characterized in that: Both sides of the front face of the box body (1) are provided with box doors (16). The side ends of the box doors (16) are fixed with hinges (15) by bolts, and the rear ends of the hinges (15) are fixed with the box body (1) by bolts.
7. A forced-air drying oven for corn food production according to claim 1, characterized in that: The front end of the box (1) is fixed with a buckle (17), and the lower end of the box (1) is fixed with a base (18). Multiple pad beams (19) are fixed inside the base (18).
8. A forced-air drying oven for corn food production according to claim 1, characterized in that: A pad plate (19) is provided at the lower end of the heating tube (4), the condenser tube (5) and the low thermal conductivity wall (1301) of the heat pipe, as well as in the middle of the exhaust pipe (12). The water collection box (9) is slidably connected to the base (18).