Tunnel drying experiment device for teaching

Abstract

The invention discloses a tunnel drying experiment device for teaching, and relates to the technical field of tunnel drying experiment devices. The tunnel drying experiment device for teaching comprises a device main body frame, a moving assembly and a drying experiment assembly, the moving assembly is arranged on the device main body frame, the drying experiment assembly is arranged on the device main body frame, the drying experiment assembly comprises a fan independent support, and the fan independent support is fixedly connected to the device main body frame. A fan is fixedly installed on the upper surface of the fan independent support, an air outlet of the fan is fixedly connected with a fan outlet pipeline bellow expansion joint, and a non-circulating air drying process route is optimized and formed on an original circulating wind tunnel drying experiment device by customizing a three-way structure, so that a tunnel drying experiment is fuller, and the drying efficiency is improved. The device integrates and displays the detected data to the intelligent interaction terminal by adopting the temperature detection part, the differential pressure sensor, the weighing sensor and other measurement parts, and is more suitable for the modern process operation.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel drying experimental devices, in particular to a tunnel drying experimental device for teaching. Background Art

[0002] Drying is an operation unit widely used in the fields of agricultural products, chemical materials, minerals and food processing. Drying is an important part of the material handling process, which aims to remove moisture from the material to meet the needs of subsequent use or further processing. Tunnel drying is a simple and efficient drying equipment. The air in the main body is heated by the heater, so that the material in the tunnel is affected by the heat in the hot air, thereby achieving the purpose of drying.

[0003] The working principle of tunnel drying is mainly to heat the air in the main body through the heater, so that the materials in the tunnel are heated in the hot air, and the surface moisture of the materials evaporates quickly, thereby achieving the purpose of drying. At the same time, the exhaust system discharges the humid air, and new air enters the main body through the air inlet, forming a cycle to ensure the efficiency of drying. The advantages of tunnel dryers are that they are simple, efficient, energy-saving and environmentally friendly.

[0004] The tunnel drying experimental device is a teaching device commonly used in drying unit experimental teaching in chemical, food, environment and other majors. The main structure includes a dryer, a heater, a flow metering component, a wind tunnel box, valves and pipe fittings.

[0005] The circulating wind tunnel drying process is often used in industry because it can be more energy-efficient than direct controlled discharge after drying due to the mixing of dried hot air with fresh air for heat transfer.

[0006] The existing tunnel drying experimental device is usually a circulating air tunnel drying experimental device. The device is intended to demonstrate the form of circulating air tunnel drying commonly used in factories, but there is no concrete understanding of why circulating air drying is chosen instead of abnormal air drying. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a teaching tunnel drying experimental device, which can solve the problem that the existing tunnel drying experimental devices are usually circulating wind tunnel drying experimental devices, and the device is intended to demonstrate the form of circulating wind tunnel drying commonly used in factories, but there is no concrete understanding of why circulating air drying is chosen instead of abnormal air drying.

[0009] (II) Technical solution

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tunnel drying experimental device for teaching, comprising a main frame of the device;

[0011] A mobile component, the mobile component is arranged on the main frame of the device;

[0012] A drying experiment component, the drying experiment component is arranged on the main frame of the device, the drying experiment component comprises an independent fan bracket, the independent fan bracket is fixedly connected to the main frame of the device, and a fan is fixedly installed on the upper surface of the independent fan bracket;

[0013] The air outlet of the fan is fixedly connected with a fan outlet pipeline corrugated expansion joint, and the rear surface of the fan outlet pipeline corrugated expansion joint is fixedly connected with a pipeline, and the pipeline is communicated with the fan outlet pipeline corrugated expansion joint;

[0014] The pipeline is fixedly installed with the main frame of the device through a mounting piece, a bypass valve is fixedly installed on the upper surface of the pipeline, and the bypass valve is communicated with the inside of the pipeline;

[0015] Wherein, a temperature detection component is fixedly installed on the upper surface of the pipeline, and a flow monitoring device is fixedly installed on the rear surface of the pipeline, and the flow monitoring device is an orifice flowmeter.

[0016] Preferably, a first arc-shaped connecting pipe communicating with the flow monitoring device is fixedly installed on the rear surface of the flow monitoring device, and an air heating component is fixedly installed on the upper surface of the first arc-shaped connecting pipe;

[0017] The air heating component is communicated with the arc-shaped connecting pipe, and an insulating and heat-insulating component is arranged on the upper surface of the air heating component.

[0018] Preferably, the air outlet of the air heating component is fixedly mounted with a tunnel dryer which is in communication therewith, the tunnel dryer is fixedly mounted together with the main frame of the device via a fixed mounting frame, and a tunnel dryer door is provided on the tunnel dryer.

[0019] Preferably, a weighing sensor is fixedly mounted on the lower surface of the tunnel dryer, and the weighing sensor is fixedly mounted together with the main frame of the device.

[0020] Preferably, a three-way joint communicating with the tunnel dryer is fixedly mounted on the front surface of the tunnel dryer;

[0021] Among them, a non-circulating air drying process control valve communicated with the three-way joint is fixedly installed on the rear surface thereof, and a second arc-shaped connecting pipe is fixedly installed on the rear surface of the non-circulating air drying process control valve.

[0022] Preferably, a circulating air drying process control valve is fixedly installed on the lower surface of the three-way joint, and a fan circulating air inlet expansion joint is fixedly installed on the lower surface of the circulating air drying process control valve.

[0023] Preferably, a third arc-shaped connecting pipe is fixedly installed on the lower surface of the fan circulating air inlet expansion joint, and an air inlet control valve is fixedly connected to the rear surface of the third arc-shaped connecting pipe.

[0024] Preferably, an electric control box is fixedly mounted on the main frame of the device, a mounting frame is fixedly mounted on the electric control box, and a Zhilian interactive terminal is fixedly mounted on the mounting frame.

[0025] Preferably, the moving assembly includes a fixed plate, which is fixedly connected to the left side of the main frame of the device, and a T-shaped support leg is fixedly connected to the lower surface of the fixed plate. Two cylinders are arranged on the upper surface of the fixed plate, and L-shaped fixing plates are fixedly installed on the left and right sides of the two cylinders, and the four L-shaped fixing plates are fixedly installed together with the fixed plate.

[0026] Preferably, the telescopic ends of the two cylinders slide through the lower surface of the fixed plate, the telescopic ends of the two cylinders are fixedly connected to the fixed plate, and the lower surfaces of the two fixed plates are fixedly installed with moving wheels. The number of moving components is two, and the number of the two moving components is mirrored on the left and right.

[0027] (III) Beneficial effects

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. This teaching tunnel drying experimental device optimizes the non-circulating air drying process route in the original circulating air tunnel drying experimental device through a customized three-way structure, making the tunnel drying experiment more complete.

[0030] 2. The teaching tunnel drying experimental device uses temperature detection components, pressure difference sensors, weighing sensors and other measuring components to integrate the detected data and display them on the intelligent interactive terminal, which is more in line with modern process operations.

[0031] 3. The tunnel drying experimental device for teaching can be controlled by manual or electric regulating valves to realize manual or automatic switching of circulating air and non-circulating air drying process routes, making the experimental operation more in line with modern technology.

[0032] 4. The tunnel drying experimental device for teaching use has an independent support for the fan, and the fan inlet and outlet pipes are equipped with expansion joints. On the one hand, it is more in line with the actual industrial status, and on the other hand, it reduces the negative impact of the vibration of the fan on the experiment during operation.

[0033] 5. The tunnel drying experimental device for teaching has a compact and simple structure and does not occupy laboratory space. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a right schematic diagram of the present invention as a whole;

[0037] Figure 3 It is a schematic diagram of the upper surface of the main frame of the device of the present invention;

[0038] Figure 4 It is a schematic diagram of the lower surface of the fixing plate of the present invention;

[0039] Figure 5 for Figure 3 The enlarged schematic diagram at A in the middle;

[0040] Figure 6 It is a schematic diagram of the process of the present invention.

[0041] Figure numerals: 1. Electrical control box of the device; 2. Independent bracket of the fan; 3. Fan; 4. Air inlet control valve; 5. Corrugated expansion joint of the fan outlet pipe; 6. Bypass valve; 7. Temperature detection component; 8. Pipeline; 9. Flow monitoring device; 10. Air heating component; 11. Main frame of the device; 12. Insulation and heat insulation component; 13. Tunnel dryer; 14. Weighing sensor; 15. Tunnel dryer door; 16. Non-circulating air drying process control valve; 17. Circulating air inlet expansion joint of the fan; 18. Circulating air drying process control valve; 19. Intelligent interactive terminal; 20. Three-way connector; 21. T-shaped support leg; 22. Fixed plate; 23. Moving wheel; 24. Cylinder; 25. L-shaped fixed plate; 26. Mounting frame; 27. Fixed plate. DETAILED DESCRIPTION

[0042] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the description of the present invention, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0045] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0046] See also Figure 1-6 The present invention provides a technical solution: a tunnel drying experimental device for teaching, comprising a device main frame 11, a moving component, and the moving component is arranged on the device main frame 11;

[0047] A drying experiment component is arranged on the main frame 11 of the device, and comprises an independent fan bracket 2, which is fixedly connected to the main frame 11 of the device, and a fan 3 is fixedly installed on the upper surface of the independent fan bracket 2;

[0048] The air outlet of the fan 3 is fixedly connected with a fan outlet pipeline corrugated expansion joint 5, and the rear surface of the fan outlet pipeline corrugated expansion joint 5 is fixedly connected with a pipeline 8, and the pipeline 8 is communicated with the fan outlet pipeline corrugated expansion joint 5;

[0049] The pipeline 8 is fixedly installed with the main frame 11 of the device through a mounting piece, and a bypass valve 6 is fixedly installed on the upper surface of the pipeline 8, and the bypass valve 6 is communicated with the inside of the pipeline 8;

[0050] A temperature detection component 7 is fixedly installed on the upper surface of the pipeline 8, and a flow monitoring device 9 is fixedly installed on the rear surface of the pipeline 8. The flow monitoring device 9 is an orifice flow meter.

[0051] Furthermore, a first arc-shaped connecting pipe communicating with the flow monitoring device 9 is fixedly installed on the rear surface thereof, and an air heating component 10 is fixedly installed on the upper surface of the first arc-shaped connecting pipe;

[0052] The air heating component 10 is communicated with the arc-shaped connecting pipe, and an insulating and heat-insulating component 12 is provided on the upper surface of the air heating component 10 .

[0053] Furthermore, a tunnel dryer 13 communicating with the air heating component 10 is fixedly installed at the air outlet thereof. The tunnel dryer 13 is fixedly installed with the device main frame 11 via a fixed mounting frame. A tunnel dryer door 15 is provided on the tunnel dryer 13 .

[0054] Furthermore, a weighing sensor 14 is fixedly mounted on the lower surface of the tunnel dryer 13 , and the weighing sensor 14 is fixedly mounted together with the main frame 11 of the device.

[0055] Furthermore, a three-way joint 20 communicating therewith is fixedly mounted on the front surface of the tunnel dryer 13;

[0056] The rear surface of the three-way joint 20 is fixedly mounted with a non-circulating air drying process control valve 16 which is in communication therewith, and the rear surface of the non-circulating air drying process control valve 16 is fixedly mounted with a second arc-shaped connecting pipe.

[0057] Furthermore, a circulating air drying process control valve 18 is fixedly installed on the lower surface of the three-way joint 20 , and a fan circulating air inlet expansion joint 17 is fixedly installed on the lower surface of the circulating air drying process control valve 18 .

[0058] Furthermore, a third arc-shaped connecting pipe is fixedly installed on the lower surface of the fan circulating air inlet expansion joint 17, and an air inlet control valve 4 is fixedly connected to the rear surface of the third arc-shaped connecting pipe.

[0059] Furthermore, an electric control box 1 of the device is fixedly mounted on the main frame 11 of the device, a mounting frame 26 is fixedly mounted on the electric control box 1 of the device, and a smart interactive terminal 19 is fixedly mounted on the mounting frame 26 .

[0060] Furthermore, the moving component includes a fixed plate 22, which is fixedly connected to the left side of the main frame 11 of the device, and a T-shaped support leg 21 is fixedly connected to the lower surface of the fixed plate 22. Two cylinders 24 are provided on the upper surface of the fixed plate 22, and L-shaped fixing plates 25 are fixedly installed on the left and right sides of the two cylinders 24. The four L-shaped fixing plates 25 are fixedly installed together with the fixed plate 22.

[0061] Furthermore, the telescopic ends of the two cylinders 24 slide through the lower surface of the fixed plate 22, the telescopic ends of the two cylinders 24 are fixedly connected to the fixed plate 27, and the lower surfaces of the two fixed plates 27 are fixedly installed with moving wheels 23. The number of moving components is two, and the number of two moving components is mirrored on the left and right.

[0062] Furthermore, when the teaching tunnel drying experimental device is used, air is supplied through the fan 3 and input into the interior of the air heating component 10 through the fan outlet pipeline bellows expansion joint 5 and pipeline 8 and the first arc-shaped connecting pipe;

[0063] When the wind passes through the flow monitoring device 9, the round tube will measure the air volume through the orifice flow meter.

[0064] Among them, after the air heating component 10 heats the air, it enters the square air duct, flows into the interior of the tunnel dryer 13, and then flows into the butterfly valve through the square-to-circular pipe. The flow rate and direction of the air can be manually adjusted. On the one hand, it can be directly discharged into the air to form tunnel drying; on the other hand, it can directly flow into the inlet of the fan 3 to form circulating air tunnel drying;

[0065] Among them, in the circulating air tunnel drying process, in order to prevent the humidity of the circulating air from increasing and ensure constant drying conditions, two valves are installed at the inlet and outlet of fan 3 respectively. The outlet of fan 3 continuously discharges exhaust gas, and the air inlet continuously flows into fresh air to ensure that the humidity of the circulating air remains unchanged.

[0066] In order to ensure constant wind temperature entering the drying chamber and constant drying conditions, the two sets of electric heating wires are automatically controlled, and the specific temperature can be set manually.

[0067] Among them, the original circulating air tunnel drying experimental device was optimized to form a non-circulating air drying process route by customizing the three-way structure, making the tunnel drying experiment more complete;

[0068] Among them, the structure is compact and simple and does not occupy laboratory space;

[0069] Among them, the device integrates the detected data and displays it on the intelligent interactive terminal 19 by using measuring components such as temperature detection component 7, pressure difference sensor, and weighing sensor 14, which is more in line with modern process operation;

[0070] The valve of the device can be controlled by manual or electric regulating valve to realize manual or automatic switching of circulating air and non-circulating air drying process routes, making the experimental operation more in line with modern technology;

[0071] Among them, the fan 3 of the device adopts independent support, and the inlet and outlet pipelines of the fan 3 are equipped with expansion joints. On the one hand, it is more in line with the actual industrial state, and on the other hand, it reduces the negative impact of the vibration of the fan during operation on the experiment.

[0072] Among them, this experiment has three calculated temperatures, one is the dry bulb temperature TIC01 entering the drying chamber (which is the set instrument reading), the second is the wet bulb temperature TI02 entering the drying chamber, and the third is the temperature TI01 at the inflow flow meter used to calculate the air volume. Its location is as follows Figure 6 shown.

[0073] Among them, the piping system of this device is made of stainless steel, and the electric heating and air duct are insulated by heat insulation design;

[0074] Among them, the valve operation of the tunnel drying process route: close valve VA03; open valves VA04 and VA05;

[0075] Among them, the valve operation of the circulating wind tunnel drying process route: close valves VA04 and VA05, and open valve VA03;

[0076] When the tunnel drying experimental device for teaching is moved, the four L-shaped fixing plates 25 are first started, and the telescopic ends of the four L-shaped fixing plates 25 push the four moving wheels 23 to move downward through the four fixing plates 27;

[0077] Among them, when the four moving wheels 23 are in contact with the ground, the four cylinders 24 are started continuously, and the main frame 11 of the device is lifted up with the four moving wheels 23 as the fulcrum, so that the two T-shaped supporting legs 21 are separated from the ground, and then the four cylinders 24 can be closed, and the main frame 11 of the device can be pushed to move by the four moving wheels 23, thereby facilitating the overall movement of the main frame 11 of the device.

[0078] Structure Description:

[0079] Moving wheels 23: The moving wheels 23 are used to assist the movement of the device main frame 11.

[0080] Fan independent bracket 2: Fan independent bracket 2 is used for installing fan 3.

[0081] Mounting frame 26: The mounting frame 26 is used for mounting the intelligent interactive terminal 19.

[0082] T-shaped support legs 21: The T-shaped support legs 21 cooperate with the fixing plates 22 to support the entire device main frame 11.

[0083] Flow monitoring device 9 : The flow monitoring device 9 is an orifice flow meter, which is used to detect the air volume inside the pipeline 8 .

[0084] Air heating component 10: The air heating component 10 is used to heat the passing wind.

[0085] L-shaped fixing plate 25 : The L-shaped fixing plate 25 is used for fixing and installing the cylinder 24 .

[0086] Cylinder 24: The cylinder 24 is used to drive the moving wheel 23 to move up and down.

[0087] Fixing plate 22 : The fixing plate 22 is used to fix the L-shaped fixing plate 25 .

[0088] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A tunnel drying experimental device for teaching, characterized in that: include: Device main frame (11); A moving component, the moving component is arranged on the device main frame (11); A drying experiment component, the drying experiment component is arranged on the main frame (11) of the device, and the drying experiment component comprises an independent fan bracket (2), the independent fan bracket (2) is fixedly connected to the main frame (11) of the device, and a fan (3) is fixedly installed on the upper surface of the independent fan bracket (2); The air outlet of the fan (3) is fixedly connected to a fan outlet pipeline corrugated expansion joint (5), the rear surface of the fan outlet pipeline corrugated expansion joint (5) is fixedly connected to a pipeline (8), and the pipeline (8) is in communication with the fan outlet pipeline corrugated expansion joint (5); The pipeline (8) is fixedly mounted on the main frame (11) of the device through a mounting member, a bypass valve (6) is fixedly mounted on the upper surface of the pipeline (8), and the bypass valve (6) is in communication with the interior of the pipeline (8); A temperature detection component (7) is fixedly mounted on the upper surface of the pipeline (8), and a flow monitoring device (9) is fixedly mounted on the rear surface of the pipeline (8), wherein the flow monitoring device (9) is an orifice flow meter.

2. A tunnel drying experimental device for teaching according to claim 1, characterized in that: A first arc-shaped connecting pipe communicating with the flow monitoring device (9) is fixedly mounted on the rear surface thereof, and an air heating component (10) is fixedly mounted on the upper surface of the first arc-shaped connecting pipe; The air heating component (10) is in communication with the arc-shaped connecting pipe, and an insulating heat-insulating component (12) is provided on the upper surface of the air heating component (10).

3. A tunnel drying experimental device for teaching according to claim 2, characterized in that: The air outlet of the air heating component (10) is fixedly mounted with a tunnel dryer (13) which is in communication with the air heating component (10). The tunnel dryer (13) is fixedly mounted with the device main frame (11) via a fixed mounting frame. The tunnel dryer (13) is provided with a tunnel dryer door (15).

4. A tunnel drying experimental device for teaching according to claim 3, characterized in that: A weighing sensor (14) is fixedly mounted on the lower surface of the tunnel dryer (13), and the weighing sensor (14) is fixedly mounted together with the device main frame (11).

5. The tunnel drying experimental device for teaching according to claim 3, characterized in that: A three-way joint (20) communicating with the tunnel dryer (13) is fixedly mounted on the front surface thereof; A non-circulating air drying process control valve (16) communicating with the three-way joint (20) is fixedly mounted on the rear surface thereof, and a second arc-shaped connecting pipe is fixedly mounted on the rear surface of the non-circulating air drying process control valve (16).

6. A tunnel drying experimental device for teaching according to claim 5, characterized in that: A circulating air drying process control valve (18) is fixedly mounted on the lower surface of the three-way joint (20), and a fan circulating air inlet expansion joint (17) is fixedly mounted on the lower surface of the circulating air drying process control valve (18).

7. A tunnel drying experimental device for teaching according to claim 6, characterized in that: A third arc-shaped connecting pipe is fixedly mounted on the lower surface of the fan circulating air inlet expansion joint (17), and an air inlet control valve (4) is fixedly connected to the rear surface of the third arc-shaped connecting pipe.

8. The tunnel drying experimental device for teaching according to claim 1, characterized in that: The device main body frame (11) is fixedly mounted with a device electric control box (1), the device electric control box (1) is fixedly mounted with a mounting frame (26), and the mounting frame (26) is fixedly mounted with a smart connection interactive terminal (19).

9. The tunnel drying experimental device for teaching according to claim 1, characterized in that: The moving assembly comprises a fixing plate (22), the fixing plate (22) being fixedly connected to the left side of the main frame (11) of the device, the lower surface of the fixing plate (22) being fixedly connected to a T-shaped supporting leg (21), the upper surface of the fixing plate (22) being provided with two cylinders (24), the left and right sides of the two cylinders (24) being fixedly mounted with L-shaped fixing plates (25), and the four L-shaped fixing plates (25) being fixedly mounted together with the fixing plate (22).

10. A tunnel drying experimental device for teaching according to claim 9, characterized in that: The telescopic ends of the two cylinders (24) slide through the lower surface of the fixed plate (22), the telescopic ends of the two cylinders (24) are fixedly connected to the fixed plate (27), and the lower surfaces of the two fixed plates (27) are fixedly installed with moving wheels (23). The number of moving components is two, and the number of the two moving components is mirrored on the left and right.

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