Tunnel oven heating laminar flow structure and tunnel oven

Abstract

The utility model provides a tunnel oven heating laminar flow structure and a tunnel oven. The tunnel drying oven heating laminar flow structure comprises a heating box body; the heater is arranged on the heating box body and is used for heating air in the heating box body; the fan assembly is arranged in the heating box body, part of the fan assembly extends out of the heating box body, and the fan assembly is used for enabling air in the heating box body to circulate; the transmission part is arranged outside the heating box body, and one end of the transmission part is in transmission connection with the fan assembly; and the first motor is arranged outside the heating box body, located on the side face of the heating box body, connected to the other end of the transmission part and used for driving the transmission part to move so as to drive the fan assembly to operate. The heating laminar flow structure of the tunnel oven provided by the embodiment of the utility model is beneficial to heat dissipation and maintenance of the motor, so that the service life of the motor is prolonged, and the stability and the service life of the whole heating laminar flow structure of the tunnel oven during working are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel ovens, in particular to a heating laminar flow structure of a tunnel oven and a tunnel oven. Background Art

[0002] A tunnel sterilization oven is a device that uses high temperature to dry and sterilize items. It is widely used in the drying and sterilization of various glass containers produced in the food or pharmaceutical industries. The advantage of a tunnel oven is that it can provide a uniform temperature distribution and a stable laminar flow state, which helps to ensure the consistency and high efficiency of the drying and sterilization effects. In addition, high-temperature operation can quickly remove the moisture in the glass containers and eliminate microorganisms at the same time, ensuring the quality and safety of the products.

[0003] However, in the heating laminar flow structure of a tunnel oven, especially in the part of the hot air blower, the motor is often connected to the upper end of the blower, and the distance between the motor and the blower is too close. The hot air blown by the blower will affect the heat dissipation of the motor, resulting in poor heat dissipation effect of the motor. This not only increases the failure rate of the motor, affects the stability and service life of the equipment, but also has a certain impact on the net height of the tunnel oven. Summary of the Utility Model

[0004] In order to improve at least some of the above disadvantages or deficiencies, an embodiment of the utility model provides a heating laminar flow structure of a tunnel oven, which is beneficial to the heat dissipation and maintenance of the motor, thereby prolonging the service life of the motor, enhancing the stability and service life of the entire heating laminar flow structure, and being beneficial to reducing the overall height of the tunnel oven.

[0005] Specifically, on the one hand, the utility model provides a heating laminar flow structure of a tunnel oven, including: a heating box body; a heater arranged on the heating box body, and the heater is used for heating the air in the heating box body; a blower assembly arranged in the heating box body, and a part of the blower assembly extends out of the heating box body, and the blower assembly is used for circulating the air in the heating box body; a transmission member arranged outside the heating box body, and one end of the transmission member is in transmission connection with the blower assembly; a first motor arranged outside the heating box body, and the first motor is located on the side surface of the heating box body, and the first motor is connected to the other end of the transmission member, and the first motor is used for driving the transmission member to move so as to drive the blower assembly to operate.

[0006] In one embodiment of the present utility model, the heating box body includes a heating box body, and a through hole is provided at the top of the heating box body; the fan assembly includes: a cooling and heat preservation structure disposed in the through hole; a connecting shaft, one end of the connecting shaft extends out of the top of the heating box body and is connected to the transmission member, and the connecting shaft penetrates through the cooling and heat preservation structure; an impeller fixedly connected to the other end of the connecting shaft, and the other end of the connecting shaft penetrates through the impeller, and the impeller is located on the side of the cooling and heat preservation structure away from the transmission member.

[0007] In one embodiment of the present utility model, the cooling and heat preservation structure includes a water-cooled mounting seat disposed close to the transmission member, a fluid inlet and a fluid outlet are provided on the water-cooled mounting seat, a fluid channel communicating the fluid inlet and the fluid outlet is provided in the water-cooled mounting seat, and the fluid channel is disposed around the connecting shaft.

[0008] In one embodiment of the present utility model, the cooling and heat preservation structure further includes: an outer shell member located on the side of the water-cooled mounting seat away from the transmission member, and heat-insulating material is filled inside the outer shell member.

[0009] In one embodiment of the present utility model, the outer shell member is disposed around the water-cooled mounting seat and the connecting shaft.

[0010] In one embodiment of the present utility model, the heater is disposed on the side wall of the heating box body, and the heater and the first motor are respectively disposed on two sides of the heating box body.

[0011] In one embodiment of the present utility model, it further includes: an exhaust pipe, one end of which is connected to the bottom of the heating box body and communicates with the heating box body, and the other end of the exhaust pipe communicates with the outside; an exhaust fan disposed on the exhaust pipe.

[0012] In one embodiment of the present utility model, the heating box body includes a heating box body provided with two layers of stainless steel layers and a slag aluminum silicate layer sandwiched between the two layers of stainless steel layers.

[0013] On the other hand, the present utility model provides a tunnel oven, including: a housing, in which a preheating laminar flow structure, the aforementioned tunnel oven heating laminar flow structure and a cooling laminar flow structure are sequentially arranged; a conveying device disposed in the housing and located at the bottom of the housing, and the conveying device sequentially penetrates through the preheating laminar flow structure, the tunnel oven heating laminar flow structure and the cooling laminar flow structure.

[0014] As can be seen from the above, the above technical features of the present utility model can have one or more of the following beneficial effects:

[0015] The heating laminar flow structure of the tunnel oven provided by the present utility model drives the movement of the transmission member through the setting of the first motor to drive the rotation of the fan assembly located in the heating box body. Compared with the traditional tunnel oven that sets the motor above the fan to drive the fan to rotate, in the embodiment of the present utility model, the first motor is arranged outside the heating box body, which is convenient for reducing the heat conduction of the heater to the first motor, facilitating the heat dissipation and maintenance of the first motor, thereby prolonging the service life of the first motor and enhancing the stability and service life of the entire heating laminar flow structure of the tunnel oven. In addition, the first motor is arranged on the side of the heating box body, which helps to reduce the occupation of the internal space of the heating laminar flow structure of the tunnel oven, and is convenient for maintenance and replacement. Compared with the traditional tunnel oven that sets the motor above the fan to drive the fan to rotate, the present utility model sets the first motor on the side of the heating box body, which can make the internal structure of the tunnel oven more compact, improve the space utilization rate, and is beneficial to reducing the overall height of the tunnel oven. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of a heating laminar flow structure of a tunnel oven provided by an embodiment of the present utility model.

[0018] Figure 2 It is a schematic structural diagram of a tunnel oven provided by an embodiment of the present utility model.

[0019] Figure 3 For Figure 1 the schematic structural diagram of the fan assembly in

[0020] Figure 4 For Figure 3 the sectional schematic diagram of the fan assembly in

[0021] Figure 5 For Figure 3 another sectional schematic diagram of the fan assembly in

[0022] Figure 6 For Figure 3 the exploded structural schematic diagram of the fan assembly in

[0023] Main element numbers:

[0024] 1: Tunnel oven; 10: Tunnel oven heating laminar flow structure; 20: Preheating laminar flow structure; 30: Cooling laminar flow structure; 40: Outer shell; 100: Heating box body; 111: Through hole; 200: Heater; 300: Fan assembly; 301: First air outlet; 310: Impeller; 320: Outer shell part; 330: Mounting plate; 340: Cooling and heat preservation structure; 341: Water-cooled mounting seat; 342: Flow inlet; 343: Flow outlet; 350: gland; 360: Connecting shaft; 400: Transmission part; 500: First motor; 610: Filter device; 620: Air duct; 621: Air hood; 630: Lifting device; 700: Exhaust pipe; 710: Exhaust fan; 711: Turbine; 7101: Second air inlet; 7102: Second air outlet; 712: Second motor; 800: Deflector; 900: Conveyor device. Detailed implementation manners

[0025] The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0026] Refer to Figure 1 and Figure 2 , the present invention provides a tunnel oven heating laminar flow structure 10 and a tunnel oven 1. Refer to Figure 2 , the tunnel oven 1 provided by the present invention includes, for example, an outer shell 40. Inside the outer shell 40, a preheating laminar flow structure 20, a tunnel oven heating laminar flow structure 10, and a cooling laminar flow structure 30 separated by partition plates are respectively arranged from left to right. A conveyor device 900 (such as a conveyor belt in the prior art) is also provided at the bottom of the outer shell 40. The articles to be dried entering the tunnel oven 1 (such as the outer packaging of food or medicine, and the outer packaging is usually a glass container) are transported through the conveyor device 900 and sequentially pass through the preheating laminar flow structure 20, the tunnel oven heating laminar flow structure 10, and the cooling laminar flow structure 30 to preheat, heat, and cool the articles to be dried, so as to realize the drying and sterilization of the articles to be dried. Refer to Figure 1 , the tunnel oven heating laminar flow structure 10 provided by the present invention includes, for example, a heating box body 100, a heater 200, a fan assembly 300, a transmission part 400, and a first motor 500.

[0027] Specifically, the heater 200 is, for example, arranged on the heating box body 100, and the heater 200 is, for example, used to heat the air inside the heating box body 100. The fan assembly 300 is, for example, used to circulate the air inside the heating box body 100, and the circulation direction is, for example, Figure 1The direction of the arrow in the figure. The transmission member 400 is, for example, arranged outside the heating box body 100, and one end of the transmission member 400 is in transmission connection with the fan assembly 300. The first motor 500 is, for example, arranged outside the heating box body 100, and the first motor 500 is located on the side of the heating box body 100. The first motor 500 is, for example, connected to the other end of the transmission member 400. The first motor 500 is used to drive the transmission member 400 to move so as to drive the fan assembly 300 to operate.

[0028] Among them, the heating box body 100 is, for example, a box body with an accommodation cavity inside. The heating box body 100 is used to heat the article to be dried to realize the drying and sterilization of the article to be dried. The fan assembly 300, for example, includes a turbine or other components for generating wind and is used to generate wind. The heater 200 is, for example, an electric heater in the prior art and is used to provide heat energy to ensure that when the article to be dried passes through the heating box body 100, the laminar flow temperature inside the heating box body 100 can reach the required drying and sterilization temperature. The fan assembly 300 is used to blow the heat generated by the heater 200 towards the bottom of the heating box body 100 to heat and dry the article to be dried on the conveying device 900. The transmission member 400 is, for example, a pulley or other applicable transmission structure and is used to transmit the power of the first motor 500 to the fan assembly 300 to realize the rotation of the fan assembly 300. The first motor 500 is, for example, an electric motor in the prior art and is used to provide kinetic energy to make the transmission member 400 move so as to drive the fan assembly 300 to rotate.

[0029] The tunnel oven heating laminar flow structure 10 provided by the present utility model drives the transmission member 400 to move by setting the first motor 500 so as to drive the fan assembly 300 located in the heating box body 100 to rotate. Compared with the traditional tunnel oven that sets the motor above the fan to drive the fan to rotate, in the embodiment of the present utility model, the first motor 500 is arranged outside the heating box body 100, which is convenient for reducing the heat conduction of the heater 200 to the first motor 500, is beneficial to the heat dissipation and maintenance of the first motor 500, thereby prolonging the service life of the first motor 500 and enhancing the stability and service life of the entire tunnel oven heating laminar flow structure 10. In addition, the first motor 500 is arranged on the side of the heating box body 100, which helps to reduce the occupation of the internal space of the tunnel oven heating laminar flow structure 10 and is convenient for maintenance and replacement. Compared with the traditional tunnel oven that sets the motor above the fan to drive the fan to rotate, the present utility model sets the first motor 500 on the side of the heating box body 100, which can make the internal structure of the tunnel oven 1 more compact, improve the space utilization rate, and is beneficial to reducing the overall height of the tunnel oven 1.

[0030] Specifically, the heating box 100 is, for example, a sandwich structure, and the sandwich structure includes, for example, two stainless steel layers and a slag aluminum silicate layer sandwiched between the two stainless steel layers, and the slag aluminum silicate layer is a thermal insulation material. The sandwich structure of the heating box 100 effectively isolates the heat generated in the heating box 100, reduces the influence of the heat on the preheating laminar flow structure 20 and the cooling laminar flow structure 30, enhances the heat insulation effect, helps to maintain the temperature stability in the heating box 100, ensures the uniformity of the drying process, and ensures the efficient operation of the equipment. The utility model can effectively isolate the heat generated in the heating box 100 by arranging the heating box 100 in the tunnel oven heating laminar flow structure 10, reduces the influence on the preheating laminar flow structure 20 and the cooling laminar flow structure 30, and improves the utilization efficiency of thermal energy to ensure the uniformity of the drying process.

[0031] Refer to Figure 1 The top of the heating box 100 is provided with a through hole 111, for example, and the fan assembly 300 includes a cooling and heat-insulating structure 340, for example, which is arranged in the through hole 111. By arranging the cooling and heat-insulating structure 340 in the through hole 111 of the heating box 100, the heat exchange between the heating box 100 and the outside is further isolated, the heat loss during the operation of the fan assembly 300 is reduced, and the drying efficiency is improved. And because the first motor 500 is easily affected by high temperature, by arranging the cooling and heat-insulating structure 340 in the through hole 111 of the heating box 100, the working environment of the first motor 500 is improved, thereby improving the stability and life of the first motor 500.

[0032] Reference Figure 3 The cooling and heat preservation structure 340 includes, for example, a water-cooling mounting seat 341 and a shell 320. The shell 320 is made of, for example, metal and is cylindrical. The shell 320 is used to protect the internal structure and provide support. The structure of the water-cooling mounting seat 341 is, for example, Figure 4 , Figure 5 and Figure 6 The structure shown is a disc at the upper end and a cylinder at the lower end, and a structure of a fluid channel for cooling is provided inside. The water-cooling mounting seat 341 is, for example, arranged near the transmission member 400, and an inlet 342 and an outlet 343 are arranged on the water-cooling mounting seat 341. A fluid channel connecting the inlet 342 and the outlet 343 is arranged in the water-cooling mounting seat 341, and water or other coolants are arranged in the fluid channel, and the fluid channel is, for example, arranged around the connecting shaft 360. In the embodiment of the utility model, the heat generated by the movement of the connecting shaft 360 driven by the transmission member 400 during the operation of the fan assembly 300 is quickly taken away by the circulation of water flow or other coolants in the fluid channel in the water-cooling mounting seat 341, which helps to prevent the fan assembly 300 from overheating due to the continuous friction between the connecting shaft 360 and the impeller 310, thereby extending the service life of the fan assembly 300.

[0033] Referring to Figure 3 、 Figure 4 、 Figure 5 and Figure 6 ,the fan assembly 300 includes, for example, an impeller 310, a housing member 320, a mounting plate 330, a water-cooled mounting base 341, and a gland 350 arranged in sequence from bottom to top. The fan assembly 300 also includes, for example, a connecting shaft 360. The connecting shaft 360 is, for example, passed through the impeller 310, the housing member 320, the mounting plate 330, the water-cooled mounting base 341, and the gland 350. One end of the connecting shaft 360 extends out of the gland 350 and is key-connected to the transmission member 400, and the other end of the connecting shaft 360 is fixedly connected to the impeller 310. Among them, the impeller 310 is, for example, a wind wheel with a plurality of blade-shaped structures. When the impeller 310 rotates, the blades push the air to generate wind power, realizing the flow and circulation of air. The mounting plate 330 is, for example, a fixing component of the fan assembly 300 for fixing the fan assembly 300 on the heating box 100. The gland 350 covers, for example, the top of other components of the fan assembly 300, and the gland 350 is used to fix other components of the fan assembly 300 to prevent other components of the fan assembly 300 from shaking or detaching when the impeller 310 rotates. The connecting shaft 360 is, for example, a shaft of the prior art. The connecting shaft 360 is connected to the water-cooled mounting base 341 through a bearing. During the operation of the fan assembly 300, the power of the first motor 500 is transmitted to the connecting shaft 360 through the transmission member 400, and the connecting shaft 360 drives the impeller 310 to rotate to generate wind power.

[0034] Specifically, the housing member 320 is located, for example, on the side of the water-cooled mounting base 341 away from the transmission member 400, and the inside of the housing member 320 is filled with heat-insulating material. Among them, the heat-insulating material can be, for example, rock wool, glass fiber, or other materials with good heat-insulating performance. By filling the inside of the housing member 320 with heat-insulating material, the influence of external heat on other components in the fan assembly 300 is reduced, the stability of the fan assembly 300 is enhanced, and it is beneficial to the efficient operation of the tunnel oven 1.

[0035] Specifically, the housing member 320 is arranged around the water-cooled mounting base 341. In this embodiment, the housing member 320 filled with heat-insulating material is used for further heat insulation, reducing the loss of heat from the water-cooled mounting base 341 to the external environment, maintaining the temperature in the fluid passage, and improving the cooling efficiency.

[0036] Referring again to Figure 1 ,the heater 200 is, for example, arranged on the side wall of the heating box 100. The heater 200 and the first motor 500 are respectively arranged on both sides of the heating box 100. In this way, the heater 200 and the first motor 500 are arranged at a relatively long distance and separated by the heating box 100, reducing the failure of the first motor 500 due to high temperature and effectively extending the service life of the first motor 500.

[0037] Referring again to Figure 1 and Figure 2 , the tunnel oven heating laminar flow structure 10 also includes, for example, a filtering device 610, a duct 620, a wind hood 621, and a lifting device 630. The fan assembly 300 has, for example, a first air inlet (not shown in the figure) and a first air outlet 301. The first air outlet 301 is, for example, arranged towards the side of the heating cabinet 100, and the first air inlet is, for example, arranged towards the bottom of the heating cabinet 100. The specific position of the first air inlet is not limited herein.

[0038] Specifically, the filtering device 610 includes, for example, a stainless-steel housing and a paper-like filtering element made of fiberglass arranged inside the stainless-steel housing, and is used for efficiently filtering the air flow blown out by the impeller 310. Preferably, the thickness of the filtering device 610 is, for example, 150 millimeters. The filtering device 610 is, for example, arranged inside the heating cabinet 100 and on the side of the fan assembly 300 close to the bottom of the tunnel oven heating laminar flow structure 10. By arranging the filtering device 610 inside the heating cabinet 100 in the present utility model, it is ensured that the air generated by the fan assembly 300 is effectively filtered, thereby improving the sterile environment of the hot air, which is particularly important for the drying process requiring a sterile environment. One end of the duct 620 is connected to the first air outlet 301, and the other end of the duct 620 bends and extends to the top of the filtering device 610 and is connected to the filtering device 610. The duct 620 is used to blow the air generated by the fan assembly 300 through the duct 620 and out from the filtering device 610. The duct 620 is, for example, a bent pipe made of stainless steel in the prior art and is used to guide the air flow generated by the fan assembly 300 through the duct 620 and out from the filtering device 610. The duct 620 directly guides the filtered air to the required area, optimizes the air flow path, reduces the loss of the air flow during transmission, and improves the drying efficiency. By arranging the first air outlet 301 towards the side of the tunnel oven heating laminar flow structure 10 and the duct 620 being a bent pipe in the present utility model, it is beneficial to reduce the overall height of the tunnel oven 1 and make the internal structure more compact.

[0039] Specifically, the air hood 621 is made of stainless steel, for example. One end of the air hood 621 is connected to the air duct 620, and the other end of the air hood 621 is connected to the filter device 610. The lifting device 630 includes components such as a support frame, screws or bolts, for example. The number of the lifting devices 630 is two, for example. The two lifting devices 630 are respectively arranged on the left side and the right side of the filter device 610, for example. The lifting device 630 is manually adjustable, for example, and is used to replace or maintain the filter device 610 more conveniently. For example, when the filter device 610 has been used for one to two years, the filter device 610 needs to be replaced. Specifically, the screws of the lifting device 630 can be turned by a wrench, so that the lifting device 630 rises to drive the air hood 621 to rise relative to the filter device 610, and then the filter device 610 can be replaced.

[0040] Specifically, the travel range of the lifting device 630 in the direction from the air hood 621 to the filter device 610 is 0 - 30 mm. The lifting device 630 provides a fine-tuning function to adapt to the slight changes in the height after the filter device 610 is worn or compressed, ensuring that the filter device 610 is tightly pressed against the air hood 621, so as to maintain the efficient operation of the entire tunnel oven 1.

[0041] Referring again to Figure 1 and Figure 2 , the tunnel oven heating laminar flow structure 10 also includes an air extraction pipe 700 and an exhaust fan 710, for example. One end of the air extraction pipe 700 is connected to the bottom of the heating box 100 and communicates with the heating box 100, and the other end of the air extraction pipe 700 communicates with the outside.

[0042] Among them, the air extraction pipe 700 is a pipe made of metal in the prior art, for example, and is used to extract the moisture in the heating box 100 through the exhaust fan 710. The exhaust fan 710 includes a turbine 711 and a second motor 712, for example, and is used to extract the moisture in the heating box 100. The second motor 712 is a motor in the prior art, for example, and is used to drive the turbine 711 to rotate. The turbine 711 is a wind wheel with a volute, for example, and is used to generate wind to extract the moisture in the heating box 100.

[0043] Among them, the turbine 711 has a second air inlet 7101 and a second air outlet 7102, for example. The second air inlet 7101 communicates with the other end of the air extraction pipe 700. The housing 40 includes an adjacent first side (not shown in the figure) and a second side (not shown in the figure). The first side is, for example, Figure 2 the left side of the housing 40 in Figure 2On the front side of the outer shell 40 in it, the second air inlet 7101 is arranged facing the first side. The second motor 712, for example, is arranged opposite to the second air inlet 7101 in the horizontal direction, and the length direction of the second motor 712 is parallel to the horizontal direction, that is, the second motor 712 is arranged horizontally. Compared with the vertical arrangement of the motor, the present utility model arranges the second motor 712 horizontally, which is beneficial to reducing the overall height of the tunnel oven 1 and making the structure of the tunnel oven 1 compact. In the embodiment of the present utility model, by arranging the second air inlet 7101 facing the first side, the second motor 712 being arranged opposite to the second air inlet 7101 in the horizontal direction, and the second air outlet 7102 facing the second side, with the first side and the second side being adjacent and perpendicular, it is beneficial to reducing the overall height of the tunnel oven 1 and making the internal structure more compact.

[0044] Specifically, when the heater 200 is heating, the fan assembly 300 generates wind to carry the heat to the conveying device 900 at the bottom. When the conveying device 900 conveys the washed items to be dried, the moisture remaining on the outer packaging becomes water vapor after being heated by the laminar flow structure 10 of the tunnel oven. The humidity in the laminar flow structure 10 of the tunnel oven will become higher and higher. The exhaust pipe 700 is used to discharge the moisture inside the laminar flow structure 10 of the tunnel oven to the outside under the action of the exhaust fan 710.

[0045] Referring to Figure 2 , the laminar flow structure 10 of the tunnel oven further includes a flow guiding member 800, for example. The flow guiding member 800 is, for example, arranged inside the heating box 100 and at the bottom of the heating box 100. The flow guiding member 800 communicates with one end of the exhaust pipe 700 close to the bottom of the heating box 100. Among them, the flow guiding member 800 is, for example, an empty box structure surrounded by four plates, and is used to guide the moisture to be discharged from the exhaust pipe 700. In the embodiment of the present utility model, by arranging the flow guiding member 800 and the exhaust pipe 700, the optimization of the internal environment of the tunnel oven 1 is realized. The exhaust pipe 700 timely discharges the water vapor generated during the heating process, avoiding the accumulation of humidity, preventing the influence on the drying speed and effect due to excessive humidity, and ensuring the drying quality.

[0046] In addition, it can be understood that the foregoing various embodiments are only exemplary descriptions of the present utility model. On the premise that the technical features do not conflict, the structures do not contradict, and the purpose of the present utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0047] In several embodiments provided by the present utility model, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in electrical, mechanical, or other forms.

[0048] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A tunnel oven heating laminar flow structure (10), characterized in that: include: A heating box (100); A heater (200) is disposed on the heating box (100), and the heater (200) is used to heat the air in the heating box (100); A fan assembly (300) is arranged in the heating box (100), and a portion of the fan assembly (300) extends out of the heating box (100), and the fan assembly (300) is used to circulate air in the heating box (100); A transmission member (400) is arranged outside the heating box (100), and one end of the transmission member (400) is transmission-connected to the fan assembly (300); The first motor (500) is arranged outside the heating box (100), and the first motor (500) is located on the side of the heating box (100). The first motor (500) is connected to the other end of the transmission member (400). The first motor (500) is used to drive the transmission member (400) to move so as to drive the fan assembly (300) to operate.

2. The tunnel oven heating laminar flow structure (10) according to claim 1, characterized in that: The top of the heating box (100) is provided with a through hole (111); The fan assembly (300) comprises: A cooling and heat-insulating structure (340) is arranged in the through hole (111); A connecting shaft (360), one end of which extends out of the top of the heating box (100) and is connected to the transmission member (400), and the connecting shaft (360) is passed through the cooling and heat-insulating structure (340); The impeller (310) is fixedly connected to the other end of the connecting shaft (360), and the other end of the connecting shaft (360) is passed through the impeller (310). The impeller (310) is located on a side of the cooling and heat-insulating structure (340) away from the transmission member (400).

3. The tunnel oven heating laminar flow structure (10) according to claim 2, characterized in that: The cooling and heat-insulating structure (340) comprises a water-cooling mounting seat (341), wherein the water-cooling mounting seat (341) is arranged close to the transmission member (400), and an inlet (342) and an outlet (343) are arranged on the water-cooling mounting seat (341), and a fluid channel connecting the inlet (342) and the outlet (343) is arranged inside the water-cooling mounting seat (341), and the fluid channel is arranged around the connecting shaft (360).

4. The tunnel oven heating laminar flow structure (10) according to claim 3, characterized in that: The cooling and heat-insulating structure (340) further comprises: A shell component (320), the shell component (320) is located on a side of the water-cooling mounting seat (341) away from the transmission component (400), and the shell component (320) is filled with heat insulation material.

5. The tunnel oven heating laminar flow structure (10) according to claim 4, characterized in that: The outer shell (320) is arranged around the water-cooling mounting seat (341) and the connecting shaft (360).

6. The tunnel oven heating laminar flow structure (10) according to claim 2, characterized in that: The heater (200) is arranged on a side wall of the heating box (100), and the heater (200) and the first motor (500) are respectively arranged on two sides of the heating box (100).

7. The tunnel oven heating laminar flow structure (10) according to claim 2, characterized in that: Also includes: An air extraction pipe (700), one end of which is connected to the bottom of the heating box (100) and communicates with the heating box (100), and the other end of which is communicated with the outside; An exhaust fan (710) is arranged on the exhaust pipe (700).

8. The tunnel oven heating laminar flow structure (10) according to claim 1, characterized in that: The heating box (100) comprises two stainless steel layers and a slag aluminum silicate layer sandwiched between the two stainless steel layers.

9. A tunnel oven, characterized in that: include: An outer shell (40) having a preheating laminar flow structure (20), a tunnel oven heating laminar flow structure (10) as claimed in any one of claims 1 to 8, and a cooling laminar flow structure (30) arranged therein in sequence; The conveying device (900) is arranged in the shell (40) and is located at the bottom of the shell (40). The conveying device (900) sequentially passes through the preheating laminar flow structure (20), the tunnel oven heating laminar flow structure (10) and the cooling laminar flow structure (30).

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