High-temperature drying oven

Abstract

The utility model relates to the technical field of drying equipment, and one embodiment of the utility model provides a high-temperature drying oven which comprises a drying oven main body, and the drying oven main body is provided with a drying space; the rotation driving device is arranged on the drying oven body and provided with a driving shaft, and one end of the driving shaft is located in the drying space; the centrifugal wind wheel is arranged on the driving shaft and is provided with an axial first air inlet and a tangential first air outlet; the supporting frame is arranged in the drying space and used for supporting articles to be dried, a gap is formed between the supporting frame and the inner wall of the drying oven body, and a second air inlet is formed in the side edge of the supporting frame and communicates with the gap; the flow guide plate is arranged at the top of the supporting frame and located below the wind wheel, the flow guide plate is provided with a through hole, the through hole communicates with the first air inlet, and the flow guide plate is used for guiding wind at the first air outlet to the gap. By means of the technical scheme, the technical problem that in the prior art, the temperature of circulating gas in an oven is not uniform is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of drying equipment, in particular, to a high-temperature oven. BACKGROUND

[0002] In many industrial production and scientific research fields, high-temperature ovens are commonly used equipment for heating, drying, curing and other processes of materials. The traditional high-temperature oven has certain limitations in technology and performance. In terms of temperature control, the precision and stability are often not ideal, and it is difficult to meet the process requirements with extremely strict temperature requirements. The heating method may not be uniform enough, resulting in temperature differences at different positions inside the oven, affecting the consistency of material processing.

[0003] In the prior art, the circulation of the gas in the oven is ensured by increasing the fan to make the gas in the oven circulate to ensure uniform heating. However, in actual use, the drying temperature is not easy to control, the heat loss of the circulating gas in the circulation process is not easy to control, and the gas flow direction is uncontrollable. There may be less flow of gas in some areas, and the heat cannot be replenished in time, resulting in uneven heating of objects in the oven. CONTENT OF THE INVENTION

[0004] To overcome the above-mentioned defects, embodiments of the present disclosure provide a high-temperature oven, which solves the technical problem of uneven temperature of circulating gas in the oven in the prior art.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a high-temperature oven, comprising:

[0006] an oven body having a drying space;

[0007] a rotating drive device provided on the oven body, the rotating drive device having a drive shaft, one end of the drive shaft being located in the drying space;

[0008] a centrifugal fan wheel provided on the drive shaft, the centrifugal fan wheel having an axial first air inlet and a tangential first air outlet;

[0009] a support frame provided in the drying space, the support frame being used to support the to-be-dried articles, the support frame having a gap with the inner wall of the oven body, the side edge of the support frame having a second air inlet, the second air inlet being in communication with the gap;

[0010] a guide plate provided on the top of the support frame, the guide plate being located below the centrifugal fan wheel, the guide plate having a through hole, the through hole being in communication with the first air inlet, and the guide plate being used to guide the air at the first air outlet to the gap.

[0011] As a further technical solution, the drive shaft and the oven body have a gap.

[0012] As a further technical solution, the guide plate is a truncated cone, and the cross-sectional area of the guide plate gradually decreases in the direction close to the centrifugal fan.

[0013] As a further technical solution, the support frame has a plurality of legs, and further comprises:

[0014] A plurality of layer plates, the legs are used to support the layer plates, the support frame supports the articles to be dried through the layer plates, and the layer plates have a plurality of ventilation openings.

[0015] As a further technical solution, further comprising:

[0016] A plurality of heating pipes, the plurality of heating pipes are arranged on the side wall of the oven body, and the heating pipes are used to heat the gas in the gap.

[0017] As a further technical solution, further comprising:

[0018] A thermal insulation layer, the side wall of the oven body is filled with the thermal insulation layer.

[0019] As a further technical solution, the top of the oven body has an exhaust port, and further comprising:

[0020] A valve arranged at the exhaust port, the valve is used to open or close the exhaust port.

[0021] As a further technical solution, further comprising:

[0022] A plurality of temperature sensors, the plurality of temperature sensors are arranged in the drying space, and the temperature sensors are used to detect the temperature of the gas in the drying space.

[0023] As a further technical solution, further comprising:

[0024] A control cabinet arranged on the oven body, and the control cabinet is electrically connected with the temperature sensors and the valve.

[0025] As a further technical solution, the oven body comprises:

[0026] A box body, the box body has the drying space;

[0027] A box door rotatably arranged on the box body, and the box door is used to open or close the drying space.

[0028] As a further technical solution, the oven body further comprises:

[0029] The box has several wheels, all of which are located at the bottom of the box and support the box.

[0030] The beneficial effects of the embodiments disclosed herein are as follows:

[0031] In this disclosure, the unique internal gas circulation structure significantly improves the temperature uniformity within the oven. By precisely guiding the gas flow path, heat loss is effectively reduced, ensuring minimal temperature differences across all areas of the oven. Precise control of the gas circulation greatly enhances the accuracy and stability of temperature control during drying, perfectly adapting to drying processes with extremely stringent temperature requirements. This significantly optimizes the drying efficiency and quality of the high-temperature oven, effectively preventing under-drying or over-drying of materials due to uneven temperature, thereby improving product yield and quality consistency. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0033] Figure 1 This is a schematic diagram of the main body of the oven in one embodiment of the present disclosure;

[0034] Figure 2 This is a schematic diagram of the internal gas circulation structure of the oven body in another embodiment of the present disclosure;

[0035] Figure 3 for Figure 2 A schematic diagram of the centrifugal impeller in the embodiment;

[0036] Figure 4 for Figure 2 A schematic diagram of the guide vane structure in the embodiment;

[0037] Figure 5 for Figure 1 A schematic diagram of the internal structure.

[0038] In the figure: 100, oven body, 110, drying space, 200, rotating drive device, 201, drive shaft, 210, centrifugal fan wheel, 211, first air inlet, 222, first air outlet, 300, support frame, 120, gap, 310, second air inlet, 400, guide plate, 202, gap, 410, through hole, 320, leg, 500, layer plate, 600, heating pipe, 700, heat insulation layer, 130, exhaust port, 131, valve, 800, temperature sensor, 900, control cabinet, 140, box, 150, door, 160, wheel. DETAILED DESCRIPTION

[0039] The present disclosure will be further described in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.

[0040] In order to make the drawing simple, only the parts related to the disclosure are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0041] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0042] In the present disclosure, unless otherwise specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0043] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0044] In addition, in the description of the present application, the terms "first", "second", and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] As Figures 1-3 shown, it shows one aspect in an embodiment of the present disclosure, and the present disclosure at least one embodiment provides an internal gas circulation structure of a high-temperature oven.

[0046] In some examples, including an oven body 100, the oven body 100 has a drying space 110; a rotating drive device 200 is arranged at the top of the drying body 100, the rotating drive device 200 has a drive shaft 201, one end of the drive shaft 201 is located in the drying space 110; a centrifugal fan 210 is arranged on the drive shaft 201, the centrifugal fan 210 has an axial first air inlet 211 and a tangential first air outlet 222; a support frame 300 is arranged in the drying space 110, the support frame 300 is used to support the articles to be dried, the support frame 300 has a gap 120 with the inner wall of the oven body 100, the side of the support frame 300 has a second air inlet 310, the second air inlet 310 is communicated with the gap 120; a flow guide plate 400 is arranged at the top of the support frame 300, the flow guide plate 400 is located below the centrifugal fan 210, the flow guide plate 400 has a through hole 410, the through hole 410 is communicated with the first air inlet 211, and the flow guide plate 400 is used to guide the air at the first air outlet 222 to the gap 120.

[0047] For example, as Figure 2As shown, the high-temperature oven is internally formed with a drying space 110 for drying articles. A rotating drive device 200 is installed at the top of the drying space 110 and has a drive shaft 201 that penetrates the top of the oven body 100, with one end of the drive shaft 201 located inside the drying space 110. A centrifugal fan wheel 210 is arranged on the drive shaft 201 and located inside the drying space 110. The rotating drive device 200 drives the centrifugal fan wheel 210 to rotate through the drive shaft 201. The centrifugal fan wheel 210 has a first air inlet 211 with an axial line and a first air outlet 222 with a tangential line. Inside the drying space 110, a support frame 300 is arranged for supporting the articles to be dried. A gap 120 is formed between the support frame 300 and the inner wall of the oven body 100. Second air inlets 310 are formed in the side edges of the support frame 300 and communicate with the gap 120. A flow guide plate 400 is installed at the top of the support frame 300 and below the centrifugal fan wheel 210. The flow guide plate 400 is provided with through holes 410 that communicate with the first air inlet 211. The centrifugal fan wheel 210 is made of stainless steel to ensure the circulation of hot air and uniform distribution of heat. The drive device of the centrifugal fan 200 is a 1500W high-temperature resistant motor with a rotating speed of 1400r / min. The centrifugal fan wheel 210 is a multi-blade type with a diameter of 270mm and a height of 138mm, and the air volume can reach 50m³ / min. The cross-sectional area of the gap 120 between the two sides of the oven is about 0.1 square meters.

[0048] When the device is in operation, the rotating drive device 200 drives the centrifugal fan wheel 210 to rotate through the drive shaft 201. Gas is sucked in through the first air inlet 211 and discharged outwardly through the first air outlet 222. The gas discharged from the first air outlet 222 is guided by the flow guide plate 400 to flow to the gap 120, then enters the support frame 300 through the second air inlets 310, and is re-sucked into the first air inlet 211 after passing through the articles to be dried. In this way, the circulation of gas is achieved, ensuring the uniform distribution of temperature inside the drying space 110.

[0049] This unique internal gas circulation structure significantly improves the uniformity of the temperature inside the oven. By precisely guiding the gas flow path, the heat loss is effectively reduced, ensuring that the temperature difference between different areas of the oven is minimal. Precise control of gas circulation greatly improves the control accuracy and stability of the drying temperature, perfectly adapting to drying processes with extremely strict temperature requirements. This significantly optimizes the drying efficiency and quality of the high-temperature oven, effectively avoiding the problem of insufficient or excessive drying of some materials due to uneven temperature, thereby improving the pass rate and quality consistency of products.

[0050] Further, a gap 202 is formed between the drive shaft 201 and the oven body 100.

[0051] There is a gap 202 between the drive shaft 201 and the oven body 100, through which air can be supplied to the drying space 110.

[0052] like Figure 4 As shown, it illustrates a flow guide structure in another embodiment of the present disclosure, wherein the flow guide plate 400 is a truncated cone and the cross-sectional area of ​​the flow guide plate 400 gradually decreases along the direction close to the centrifugal fan 200.

[0053] In some examples, in the internal gas circulation structure of a high-temperature oven, the baffle 400 is shaped like a frustum of a cone. Its characteristic is that the cross-sectional area of ​​the baffle 400 gradually decreases along the direction close to the centrifugal fan 200, and the axis of the baffle 400 is collinear with the axis of the through hole 410.

[0054] This design allows the gas discharged from the first air outlet 222 of the centrifugal fan 200 to be more effectively guided to the gap 120 between the support frame 300 and the inner wall of the oven body 100, and also to concentrate the gas below the guide plate 400, so that the gas in the support frame 300 can better enter the first air inlet 211, thereby achieving more efficient gas circulation.

[0055] like Figure 5 As shown, it illustrates a support structure for an item to be dried in another embodiment of the present disclosure. The support frame 300 has a plurality of legs 320 and also includes a shelf 500. The shelf 500 has a plurality of legs 320 for supporting the shelf 500. The support frame 300 supports the item to be dried through the shelf 500. The shelf 500 has a plurality of vents.

[0056] In some examples, the support frame 300 is provided with several legs 320 and equipped with multiple shelves 500. The legs 320 support the shelves 500, and the vertical spacing between the shelves 500 can be freely controlled by placing them on different legs 320 according to the actual size of the items to be dried. The items to be dried are placed on the shelves 500. Several ventilation openings are distributed on the shelves 500. The ventilation openings on the shelves 500 facilitate the drying of the items from the bottom.

[0057] The multiple shelves (500) design increases the space for placing items to be dried, improving the efficiency of the oven. The presence of ventilation openings facilitates the full circulation of air within the support frame (300), allowing heat to be transferred more evenly to all parts of the items to be dried, ensuring consistent drying results.

[0058] like Figure 5As shown, it illustrates a temperature control structure in another embodiment of the present disclosure, which also includes a heating tube 600. There are several heating tubes 600, and all of the heating tubes 600 are disposed on the side wall of the oven body 100. The heating tubes 600 are used to heat the gas in the gap 120.

[0059] In some examples, several heating tubes 600 are evenly distributed on the side wall of the oven body 100. The main function of these heating tubes 600 is to heat the gas within the gap 120. During gas circulation, the gas passing through the gap 120 is heated by the heating tubes 600. The heated gas can better maintain the high-temperature environment inside the oven, ensuring the drying effect. In practical use, the heating tubes 600 can be connected to a control system. The control system can control the temperature and heating time of the heating tubes 600 by controlling the current, thereby controlling the drying temperature within the drying space 110. The heating tubes 600 can be stainless steel electric heating tubes.

[0060] The arrangement of multiple heating tubes 600 enables more uniform and rapid heating of the gas within the gap 120, improving heating efficiency. The heating tubes 600 distributed on the side walls further enhance the uniform temperature distribution inside the oven, reducing temperature differences and thus improving drying quality.

[0061] like Figure 5 As shown, it illustrates a heat insulation structure in another embodiment of the present disclosure, which also includes a heat insulation layer 700, and the side wall of the oven body 100 is filled with the heat insulation layer 700.

[0062] In some examples, a heat insulation layer 700 is filled inside the side wall of the oven body 100. The heat insulation layer 700 can effectively reduce the loss of heat from inside the oven body 100 to the outside of the oven, thereby improving energy utilization efficiency. The heat insulation layer 700 helps to reduce heat transfer loss, so that the heat generated by the heating tube 600 can be more concentrated on the gas in the gap 120.

[0063] The 700mm insulation layer significantly reduces heat loss from the oven, saving energy and lowering operating costs. It also helps maintain a stable high-temperature environment inside the oven, reducing temperature fluctuations and improving the stability of the drying effect.

[0064] like Figure 5 As shown, a release structure is illustrated in another embodiment of the present disclosure. The oven body 100 has an exhaust port 130 at its top and also includes a valve 131 disposed at the exhaust port 130. The valve 131 is used to open or close the exhaust port 130.

[0065] In some examples, during the drying process, the exhaust port 130 can be opened or closed by operating valve 131 as needed. For example, valve 131 is opened when it is necessary to expel excess gas or moisture from the oven; valve 131 is closed when it is necessary to maintain stable pressure and temperature within the oven. Furthermore, after drying is complete, the high-temperature gas in the drying space 110 can be expelled by opening valve 131, preventing operators from being burned when handling items.

[0066] like Figure 5 As shown, it illustrates a temperature control method in another embodiment of the present disclosure, which also includes a temperature sensor 800. There are several temperature sensors 800, and all of the several temperature sensors 800 are disposed in the drying space 110. The temperature sensors 800 are used to detect the gas temperature in the drying space 110.

[0067] In some examples, several temperature sensors 800 are evenly distributed inside the drying space 110. These temperature sensors 800 can monitor the gas temperature at different locations within the drying space 110 in real time and transmit the temperature data to the control system. The arrangement of multiple temperature sensors 800 allows for more comprehensive and accurate acquisition of temperature information within the drying space 110, avoiding situations where localized temperatures are not monitored.

[0068] like Figure 1 As shown, it illustrates an external structure in another embodiment of the present disclosure, which also includes a control cabinet 900. The control cabinet 900 is mounted on the oven body 100 and is electrically connected to the temperature sensor 800 and the valve 131.

[0069] In some examples, a control cabinet 900 is installed on the oven body 100. The control cabinet 900 is electrically connected to a temperature sensor 800, a valve 131, and a heating element 600 via circuitry. Temperature data detected by the temperature sensor 800 is transmitted to the control cabinet 900, which then controls the opening and closing of the valve 131, the temperature of the heating element 600, and the heating time according to a preset program and set temperature range. The control cabinet 900 enables centralized management of temperature and exhaust control, making operation more convenient and efficient.

[0070] like ​ As shown, the oven body 100 structure in another embodiment of the present disclosure is illustrated. The oven body 100 includes a box body 140, which has a drying space 110. A door 150 is rotatably disposed on the box body 140 and is used to open or close the drying space 110.

[0071] In some examples, the oven body 100 is composed of a box body 140, and the drying space 110 is formed in the box body 140. A box door 150 is rotatably connected to the box body 140 by a hinge or the like. When it is necessary to put in or take out the articles to be dried, the box door 150 is rotated to open the drying space 110; during the drying process, the box door 150 is rotated to close the drying space 110.

[0072] The rotation of the box door 150 facilitates the putting in and taking out of the articles, and the operation is simple and fast. The drying space 110 can be effectively closed to reduce heat loss and ensure the drying effect.

[0073] Further, the oven body 100 further comprises a plurality of traveling wheels 160, which are arranged at the bottom of the box body 140 and support the box body 140.

[0074] In some examples, the box body 140 of the oven body 100 is provided with a plurality of traveling wheels 160. The traveling wheels 160 are uniformly distributed and jointly support the box body 140. When it is necessary to move the oven, the box body 140 can be pushed or pulled to be easily moved by the traveling wheels 160.

[0075] It should be noted that the above examples are only used to illustrate the technical solutions of the present disclosure but not limit the present disclosure. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, and all of them should be covered in the scope of the claims of the present disclosure.

Claims

1. A high temperature oven characterized by, The utility model relates to a drying oven, including: The oven body (100) has a drying space (110); Rotary drive device (200) is arranged on the oven body (100), and the rotary drive device (200) has drive shaft (201), and one end of drive shaft (201) is located in the drying space (110); Centrifugal fan wheel (210) is arranged on drive shaft (201), and centrifugal fan wheel (210) has axial first air inlet (211) and tangential first air outlet (222); Support frame (300) is arranged in the drying space (110), and the support frame (300) is used to support the article to be dried, and the support frame (300) has a gap (120) with the inner wall of the oven body (100), and the side of the support frame (300) has a second air inlet (310), and the second air inlet (310) is communicated with the gap (120); The guide vane (400) is arranged on the top of the support frame (300), and the guide vane (400) is located below the centrifugal fan wheel (210), and the guide vane (400) has a through hole (410), and the through hole (410) is communicated with the first air inlet (211), and the guide vane (400) is used to guide the air at the first air outlet (222) to the gap (120).

2. The high temperature oven of claim 1, wherein, The drive shaft (201) and the oven body (100) have a gap (202).

3. The high temperature oven of claim 1, wherein, The guide vane (400) is a circular truncated cone, and the cross-sectional area of the guide vane (400) gradually decreases in the direction close to the centrifugal fan wheel (210).

4. The high temperature oven of claim 1, wherein, The support frame (300) has a plurality of legs (320), and further includes: A plurality of layer plates (500) are provided, the legs (320) are used to support the layer plates (500), the support frame (300) supports the article to be dried through the layer plates (500), and the layer plates (500) have a plurality of ventilation openings.

5. The high temperature oven of claim 1, wherein, Further including: A plurality of heating pipes (600) are provided, and the heating pipes (600) are arranged on the side wall of the oven body (100), and the heating pipes (600) are used to heat the gas in the gap (120).

6. A high temperature oven according to claim 5, wherein, Further including: The side wall of the oven body (100) is filled with a heat insulation layer (700).

7. A high temperature oven as claimed in claim 5, wherein, The top of the oven body (100) has an exhaust port (130), and further including: A valve (131) is arranged at the exhaust port (130), and the valve (131) is used to open or close the exhaust port (130).

8. A high temperature oven according to claim 7, wherein, Further including: A plurality of temperature sensors (800) are provided, and the temperature sensors (800) are arranged in the drying space (110), and the temperature sensors (800) are used to detect the gas temperature in the drying space (110).

9. A high temperature oven according to claim 8, wherein, Further including: A control cabinet (900) is arranged on the oven body (100), and the control cabinet (900) is electrically connected with the temperature sensor (800) and the valve (131).

10. The high temperature oven of claim 1, wherein, The oven body (100) includes: A box (140) having the drying space (110); A box door (150) rotatably arranged on the box (140), the box door (150) being used to open or close the drying space (110); Walking wheels (160) having a plurality of walking wheels (160) arranged at the bottom of the box (140), the walking wheels (160) being used to support the box (140).

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