CN211964875U

CN211964875U - Double-area hot air circulation oven

Info

Publication number: CN211964875U
Application number: CN202020038028.5U
Authority: CN
Inventors: 刘松文; 林睿详; 曹海
Original assignee: China Wonderland Nurserygoods Co Ltd
Current assignee: China Wonderland Nurserygoods Co Ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-11-20
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses a double-zone heated air circulation oven, double-zone heated air circulation oven has the partition wall, and the partition wall separates the oven into wind channel and studio, and the studio includes the radiant section and the solidification zone that communicate each other, and the wind channel is located the left and right sides and the bottom of studio, and the wind channel includes radiation wind channel and solidification wind channel, respectively is equipped with air-supply line and return air pipe in radiant section and the solidification zone, and one of them air-supply line intercommunication radiant section and radiation wind channel, another air-supply line intercommunication solidification zone and solidification wind channel; one of the return air ducts is communicated with the radiation area and the radiation air duct, the other return air duct is communicated with the curing area and the curing air duct, the air inlet pipe is positioned at the bottom and/or two sides of the working chamber, the two return air ducts are respectively arranged at the left side and the right side of the working chamber and are higher than the air inlet pipe, and the radiation air duct and the curing air duct are respectively internally provided with a circulating fan, a heater and an air inlet. When the utility model discloses when using with transmission device collocation, the work piece is earlier through the solidification district behind the radiation district, realizes that the subregion is handled under same oven, saves area.

Description

Double-area hot air circulation oven

Technical Field

The utility model relates to a heating and drying equipment field especially relates to a two district heated air circulation ovens.

Background

With the development of science and technology and the advancement of humanity, the oven has the advantages of high heating temperature, uniform heating temperature, etc. and is widely used in industry.

In the field of post-treatment of coating lines, after being sprayed, a workpiece needs to be placed into an oven for vitrification and solidification, generally, the workpiece enters the vitrified oven for treatment and then enters the solidified oven for treatment, although the treatment mode can realize step-by-step treatment of the workpiece and accelerate the treatment efficiency; however, it is known that the oven occupies a large area, and the cost of the floor is increased for users with a small floor space.

And no oven in the market can integrate vitrification treatment and curing treatment in the same oven for a while, thereby solving the problem of saving land area.

Therefore, there is a need for a two-zone hot air circulation oven with a partitioned treatment and a land area saving to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a subregion is handled, is saved two district heated air circulation oven of land used area.

In order to achieve the above object, the utility model discloses a dual-zone heated air circulation oven includes circulating fan, the air-supply line, return air duct and heater, dual-zone heated air circulation oven has the partition wall, the partition wall separates dual-zone heated air circulation oven into wind channel and studio, the studio includes radiation zone and the solidification zone of intercommunication each other along left and right directions, the wind channel is located the left and right sides and the bottom of studio, the wind channel includes radiation wind channel and solidification wind channel, respectively be equipped with air-supply line and return air duct in radiation zone and the solidification zone, one of them air-supply line one end communicates with the radiation zone, the other end communicates with the radiation wind channel, another air-supply line one end communicates with the solidification zone, the other end communicates with the solidification; one end of one air return pipe is communicated with the radiation area, the other end of the air return pipe is communicated with the radiation air channel, one end of the other air return pipe is communicated with the curing area, the other end of the other air return pipe is communicated with the curing air channel, the air inlet pipe is positioned at the bottom and/or two sides of the working chamber, the two air return pipes are respectively arranged at the left side and the right side of the working chamber and are higher than the air inlet pipe, circulating fans are respectively arranged in the radiation air channel and the curing air channel, the circulating fans are adjacent to the air return pipes, a heater is arranged between the circulating fans and the air inlet pipe, the air.

Preferably, the air inlet pipe is positioned at the bottom of the working chamber, and the air inlet pipe and the passing workpiece are oppositely arranged along the vertical direction.

Preferably, the air inlet pipes are positioned at two sides of the working chamber, and air openings of the air inlet pipes are arranged obliquely upwards.

Preferably, the working chamber is further provided with an insulating layer.

Preferably, the heating temperature of the heater located in the radiant tunnel is greater than the heating temperature of the heater located in the curing tunnel.

Preferably, the utility model discloses a two district heated air circulation ovens still including being used for bearing the weight of the rail set that the work piece removed, rail set is the C type and sets up in the top of studio and locate radiation zone and solidification zone simultaneously.

Preferably, the air inlet pipe comprises at least two air inlet branch pipes, the air inlet branch pipes are arranged at intervals in the vertical direction, each air inlet branch pipe comprises an air outlet pipe orifice, and the air outlet pipe orifices penetrate through the working chamber and are communicated with the working chamber, and all the air outlet pipe orifices are arranged on the same horizontal plane at intervals.

Preferably, the air inlet branch pipe further comprises an air inlet pipe opening and a pipeline connected between the air inlet pipe opening and the air outlet pipe opening, and all the pipelines are communicated with the same air inlet pipe opening.

Preferably, the shape of the air outlet pipe opening is rectangular, and the length direction of the air outlet pipeline is consistent with the front-back direction of the working chamber.

Preferably, each conduit has an arcuate segment.

Preferably, the air inlet pipe orifice of the air inlet pipe and the air outlet pipe orifice of the return air pipe are arranged in opposite directions in the air duct.

Preferably, the utility model discloses a two district heated air circulation ovens still include the refluence frame, the juncture in refluence frame position radiation zone and solidification zone.

Preferably, the backflow frame is of an I-shaped structure.

Preferably, the side surfaces of the backflow frame facing the radiation area and the curing area respectively are concave curved surfaces.

Compared with the prior art, the utility model discloses a two district heated air circulation ovens separate into wind channel and studio with the help of the partition wall, accomplish hot-blast circulation in the studio with the help of wind channel, air-supply line, return air pipe. The working chamber comprises a radiation area and a curing area, the air channel comprises a radiation air channel and a curing air channel, and the radiation area and the curing area are respectively arranged by virtue of an air inlet pipe and an air return pipe, so that the radiation area, the radiation air channel, the air inlet pipe and the air return pipe can complete hot air circulation; the hot air circulation principle of the curing area is consistent with that of the radiation area, so that the radiation area and the curing area sequentially treat the workpiece in the same oven, and the heat between the two areas can be shared, thereby ensuring no loss of heat; because the wind gap of the air-supply line in each district is relative with the work piece that each district passed through, and the temperature in each district is adjusted to the heating temperature of accessible regulation heater, so the utility model discloses can carry out the subregion under same oven and handle, work as the utility model discloses a during the transmission device collocation use of two district heated air circulation ovens and work piece, this mobile device can drive the work piece earlier through the solidification district after the radiation zone, realizes subregion processing under same oven to save area.

Drawings

Fig. 1 is a schematic sectional view of a dual-zone heated air circulation oven according to the present invention.

Fig. 2 is a schematic top view of the dual-zone heated air circulation oven of the present invention, which is installed on an external transmission track and hidden in the air inlet pipe.

Fig. 3 is a schematic top cross-sectional view of a dual zone heated air circulation oven of the present invention.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

The utility model discloses a two district heated air circulation oven 100 is applicable to and carries out vitrification and solidification in proper order to the work piece 200 that removes to make the coating film forming of spraying on work piece 200. It can be understood that the workpiece 200 is driven by the external transmission rail device 300 to enter the oven operation.

Please refer to fig. 1 to 3, the utility model discloses a two-zone heated air circulation oven 100 includes circulating fan, air-supply line 3, return air duct 4 and heater 2, two-zone heated air circulation oven 100 has partition wall 1, partition wall 1 separates two-zone heated air circulation oven 100 into wind channel 5 and studio 6, studio 6 is including radiation zone 61 and the solidification zone 62 of mutual intercommunication along the left and right sides direction, wind channel 5 is located the left and right sides and the bottom of studio 6, wind channel 5 includes radiation wind channel 51 and solidification wind channel 52, respectively be equipped with air-supply line 3 and return air duct 4 in radiation zone 61 and the solidification zone 62. For convenience of description, the air inlet duct in the radiation zone 61 is hereinafter referred to as a first air inlet duct 3a, and the return duct in the radiation zone 61 is hereinafter referred to as a first return duct 4 a; the air inlet pipe in the curing zone 62 is called a second air inlet pipe 3b, and the air return pipe in the curing zone 62 is called a second air return pipe 4 b; the circulation fan in the radiant tunnel 51 is referred to as a first circulation fan 71, and the circulation fan in the curing tunnel 52 is referred to as a second circulation fan 72. Specifically, the inner wall of the working chamber 6 is provided with an insulating layer (not shown), so that the heat brought by the hot air is durable. More specifically, the following:

referring to fig. 1, in the radiation area 61, one end of the first air inlet pipe 3a is communicated with the radiation area 61, the other end is communicated with the radiation air duct 51, one end of the first air return pipe 4a is communicated with the radiation area 61, and the other end is communicated with the radiation air duct 51. It can be understood that the first air inlet pipe 3a is used for introducing hot air into the radiation zone 61, and the first air return pipe 4a is used for recovering the hot air in the radiation zone 61 into the radiation air duct 51, so as to complete the circulation of the hot air. Specifically, the first air inlet pipe 3a is located at the bottom of the radiation zone 61, so that the nozzle of the first air inlet pipe 3a blows out hot air upwards, which is beneficial for the passing workpiece 200 to be heated uniformly, and certainly, in other embodiments, the first air inlet pipe 3a is located on the side wall of the radiation zone 61, and the nozzle of the first air inlet pipe 3a is disposed in an oblique upward direction, so that the nozzle of the first air inlet pipe 3a blows out hot air towards the lateral direction, which is not limited. The first return duct 4a is provided on a side wall of the radiation region 61. It can be understood that the first air return duct 4a is higher than the first air inlet duct 3a, and the hot air is blown upwards in the radiation zone 61 and then is recycled into the radiation air duct 51 by the first air return duct 4 a. In order to make the first air return duct 4a capable of forcefully recovering the hot air and blowing the hot air out of the first air inlet duct 3a, a first circulating fan 71 is provided in the radiant duct 51, and the first circulating fan 71 is adjacent to the air outlet of the first air return duct 4 a. The heater 2 is arranged between the first circulating fan 71 and the first air inlet pipe 3a, the hot air recovered into the radiant air duct 51 is reheated after passing through the heater 2 by means of the heater 2, and the heated hot air is favorably blown out from the first air inlet pipe 3a by means of the first circulating fan 71. The radiation air duct 51 is further provided with an air inlet 8 communicated with the outside, the air inlet 8 is arranged between the heater 2 and the first circulating fan 71, and fresh air can be injected into the radiation air duct 51 by means of the air inlet 8, so that the cleanness of the radiation area 61 is kept. It is understood that, in other embodiments, in order to make the hot air in the first air inlet pipe 3a more reliably blown out to the radiation area 61, a third circulation fan may be disposed at the air inlet pipe 3 adjacent to the first air inlet pipe 3a, but not limited thereto.

Referring to fig. 1, in the curing area 62, one end of the second air inlet pipe 3b is communicated with the curing area 62, the other end is communicated with the curing air duct 52, and one end of the second air return pipe 4b is communicated with the curing area 62, and the other end is communicated with the curing air duct 52. It can be understood that the second air inlet pipe 3b is used for introducing hot air into the curing zone 62, and the second air return pipe 4b is used for recycling the hot air in the curing zone 62 into the curing air duct 52, so as to complete the circulation of the hot air. Specifically, the second air inlet pipe 3b is located at the bottom of the curing zone 62, so that the nozzle of the second air inlet pipe 3b blows out hot air upwards, which is beneficial for the passing workpiece 200 to be heated uniformly, and certainly, in other embodiments, the second air inlet pipe 3b is located on the side wall of the curing zone 62, and the nozzle of the second air inlet pipe 3b is disposed obliquely upwards, so that the nozzle of the second air inlet pipe 3b blows out hot air sideward, which is not limited. The second return air duct 4b is provided on a side wall of the curing zone 62. It can be understood that the second return air duct 4b is higher than the second air inlet duct 3b, and the hot air is blown upwards in the curing zone 62 and then is recycled into the curing air duct 52 by the second return air duct 4 b. In order to make the second return air duct 4b capable of effectively recovering hot air and blowing the hot air out of the second air inlet duct 3b, a second circulating fan 72 is provided in the curing air duct 52, and the second circulating fan 72 is adjacent to the air outlet of the second return air duct 4 b. The heater 2 is arranged between the second circulating fan 72 and the second air inlet pipe 3b, the hot air recovered into the curing air duct 52 is reheated after passing through the heater 2 by means of the heater 2, and the heated hot air is favorably blown out from the second air inlet pipe 3b by means of the second circulating fan 72. The curing air duct 52 is further provided with an air inlet 8 communicated with the outside, the air inlet 8 is arranged between the heater 2 and the second circulating fan 72, and fresh air can be injected into the curing air duct 52 by means of the air inlet 8, so that the cleanness of the curing area 62 is kept. It is understood that, in other embodiments, in order to more reliably blow the hot air from the second air inlet pipe 3b to the curing zone 62, a fourth circulating fan may be disposed at the air inlet pipe 3 adjacent to the second air inlet pipe 3b, but not limited thereto.

Referring to fig. 1 and fig. 2, when the dual-zone heated air circulation oven 100 of the present invention is used in cooperation with the external transmission track device 300, the transmission track device 300 is disposed in the dual-zone heated air circulation oven 100 of the present invention to drive the workpiece 200 to move in the radiation zone 61 first to complete the vitrification process, and then to drive the workpiece 200 to move in the solidification zone 62 to complete the solidification process. The moving path of the workpiece 200 is shown by the arrow in fig. 2.

Referring to fig. 1 to 3, the air inlet pipe 3 is located at the bottom of the working chamber 6, and the air inlet pipe 3 and the passing workpiece 200 are arranged oppositely in the vertical direction, so that the hot air blown from the air inlet pipe 3 can surround the workpiece 200 upwards, and the workpiece is heated uniformly. Specifically, in the present embodiment, the heating temperature of the heater 2 in the radiation air duct 51 is higher than the heating temperature of the heater 2 in the curing air duct 52, that is, in the present embodiment, the temperature required for vitrification is higher than the temperature required for curing; of course, in other embodiments, the heating temperatures of the two heaters 2 can be adjusted according to the actual needs, and therefore, the invention is not limited thereto.

It should be noted that, in other embodiments, when the dual-zone heated air circulation oven 100 of the present invention is not used in cooperation with the external transmission rail device 300, the dual-zone heated air circulation oven 100 of the present invention includes a rail device for supporting the movement of the workpiece 200, and the rail device is installed on the top of the working chamber 6 and is installed in the radiation zone 61 and the curing zone 62. The rail device is arranged at the top of the working chamber 6 in a C shape or a U shape.

Referring to fig. 1 and 3, the air inlet pipe 3 includes three air inlet branch pipes 31, but in other embodiments, the number of the air inlet branch pipes 31 may be two or four, but not limited thereto. The air inlet branch pipes 31 are arranged at intervals in the up-down direction, and hot air can uniformly enter the air inlet branch pipes 31 to quickly reach the working chamber 6. The air inlet branch pipe 31 includes an air outlet pipe opening 312, an air inlet pipe opening 311 and a pipe 313 connected between the air inlet pipe opening 311 and the air outlet pipe opening 312. The air outlet nozzles 312 penetrate through the working chamber 6 and are communicated with the working chamber 6, and all the air outlet nozzles 312 are located on the same horizontal plane and are arranged at intervals. More specifically, the outlet nozzles 312 are spaced in the left-right direction. All of the ducts 313 lead to the same intake manifold opening 311. The air outlet pipe opening 312 is rectangular, the length direction of the air outlet pipe opening 312 is consistent with the front-back direction of the working chamber 6, and the moving direction of the workpiece 200 is consistent with the front-back direction of the working chamber 6, so that the rectangular air outlet pipe opening 312 can be used for processing the workpiece 200 which moves through in a large area, the bottom of the working chamber 6 can blow out hot air in the front-back direction, and the hot air can be utilized more efficiently. Each duct 313 has an arc-shaped segment, thereby reducing the distance of the hot air to the working chamber 6 and allowing the hot air to reach the working chamber 6 more quickly. Of course, in other embodiments, the duct 313 includes a horizontal section and a vertical section, and the duct 313 has the beneficial effect of saving the space of the air duct 5 and can also complete the air intake operation, so the disclosure is not limited thereto.

It can be understood that the first air inlet pipe 3a and the second air inlet pipe 3b are arranged in bilateral symmetry with the air duct 5, the air inlet opening 311 of the first air inlet pipe 3a faces to the left, the air inlet opening 311 of the second air inlet pipe 3b faces to the right, and the air outlet openings 312 of the first air inlet pipe and the second air inlet pipe both face to the upper, so that hot air cannot flow between the radiation air duct 51 and the curing air duct 52.

It should be noted that the air inlet pipe 3 and the air return pipe 4 have the same structure, and they are different only in arrangement mode, the arrangement of the air return pipe 4 is obtained by the symmetry and rotation of the air inlet pipe 3, and the first air return pipe 4a and the second air return pipe 4b are arranged in bilateral symmetry. It will be appreciated that the outlet opening 312 of the inlet duct 3 serves as the inlet opening of the return duct 4, and the inlet opening 311 of the inlet duct 3 serves as the outlet opening of the return duct 4. Preferably, the air inlet 311 of the air inlet pipe 3 and the air outlet of the air return pipe 4 are arranged in opposite directions in the air duct 5, so as to facilitate the rapid circulation of hot air.

Referring to fig. 1, the dual-zone heated air circulation oven 100 of the present invention further includes a backflow frame 9, and the backflow frame 9 is located at the junction of the radiation zone 61 and the curing zone 62. In particular, the frame 9 is of i-shaped configuration, so as to separate the hot air of the radiation zone 61 from the hot air of the curing zone 62, facilitating the respective circulation. Preferably, the side surfaces of the backflow frame 9 facing the radiation zone 61 and the curing zone 62 are concave curved surfaces 91, so as to guide the hot air and enable the hot air to circulate to the return air duct 4 more quickly. It is understood that in other embodiments, the backflow frame 9 may be eliminated, but not limited thereto.

Compared with the prior art, the utility model discloses a two district heated air circulation oven 100 separates into wind channel 5 and studio 6 with the help of partition wall 1, accomplishes the circulation of hot-blast in studio 6 with the help of wind channel 5, air-supply line 3, return air duct 4. Because the working chamber 6 comprises the radiation area 61 and the curing area 62, the air duct 5 comprises the radiation air duct 51 and the curing air duct 52, and the air inlet pipe 3 and the air return pipe 4 are respectively arranged in the radiation area 61 and the curing area 62, the radiation area 61, the radiation air duct 51, the air inlet pipe 3 and the air return pipe 4 can complete hot air circulation, air enters the radiation air duct 51 from the air inlet 8 by virtue of the circulating fan and the heater 2 in the radiation air duct 51, enters the radiation area 61 through the air inlet pipe 3 after being heated by the heater 2, vitrifies the workpiece 200 in the radiation area 61, recycles hot air in the radiation area 61 into the air return pipe 4 by virtue of the circulating fan, then enters the radiation air duct 51 again, and recycles the hot air into the radiation area 61 after being heated by the heater 2 again; the hot air circulation principle of the curing area 62 is consistent with that of the radiation area 61, so that the radiation area 61 and the curing area 62 sequentially treat the workpiece 200 in the same oven, and the heat between the two areas can be shared, thereby ensuring no loss of heat; because the wind gap of the air-supply line 3 in each district is relative with the work piece 200 that each district passed through, and the temperature in each district is adjusted to the heating temperature of accessible regulation heater 2, so the utility model discloses a can carry out the subregion under same oven and handle, work as the utility model discloses a when the mobile device collocation of two district heated air circulation ovens 100 and work piece 200 was used, this mobile device can drive work piece 200 and pass through solidification zone 62 behind radiant zone 61 earlier, realizes the subregion and handles under same oven to save area.

The above disclosure is only a preferred embodiment of the present invention, and the scope of the claims of the present invention should not be limited thereby, and all the equivalent changes made in the claims of the present invention are intended to be covered by the present invention.

Claims

1. A double-zone hot air circulation oven is characterized by comprising a circulating fan, an air inlet pipe, an air return pipe and a heater, wherein the double-zone hot air circulation oven is provided with a partition wall, the partition wall divides the double-zone hot air circulation oven into an air channel and a working chamber, the working chamber comprises a radiation zone and a curing zone which are mutually communicated along the left direction and the right direction, the air channel is positioned at the left side, the right side and the bottom of the working chamber and comprises a radiation air channel and a curing air channel, the air inlet pipe and the air return pipe are respectively arranged in the radiation zone and the curing zone, one end of one air inlet pipe is communicated with the radiation zone, the other end of the air inlet pipe is communicated with the radiation air channel, one end of the other air inlet pipe is communicated with the curing zone, and the other; one of the air return pipes is communicated with the radiation area, the other end of the air return pipes is communicated with the radiation air channel, the other air return pipe is communicated with the curing area, the other end of the air return pipes is communicated with the curing air channel, the air inlet pipe is positioned at the bottom and/or two sides of the working chamber, the two air return pipes are respectively arranged at the left side and the right side of the working chamber and are higher than the air inlet pipe, the circulating fans are respectively arranged in the radiation air channel and the curing air channel, the circulating fans are adjacent to the air return pipes, the heater is arranged between the circulating fans and the air inlet pipe, the air channel is also provided with an air inlet communicated with the outside, and the air inlet is arranged between the heater and the circulating fans.

2. The dual zone heated air circulation oven of claim 1 wherein the air inlet duct is located at the bottom of the working chamber, the air inlet duct being disposed opposite the passing workpiece in an up-down direction.

3. The dual zone heated air circulation oven of claim 1, wherein the air inlet ducts are located on both sides of the working chamber, and the air openings of the air inlet ducts are arranged diagonally upward.

4. The dual zone heated air circulation oven of claim 1, wherein the working chamber is further provided with an insulating layer.

5. The dual zone heated air circulation oven of claim 1, wherein the heaters located within the radiant tunnel have a heating temperature greater than the heaters located within the curing tunnel.

6. The dual-zone heated air circulation oven of claim 1, further comprising a track arrangement for carrying the workpiece in motion, the track arrangement being C-shaped and disposed at the top of the chamber and at both the irradiation zone and the curing zone.

7. The dual-zone heated air circulation oven of claim 1, wherein the air inlet pipe comprises at least two air inlet branch pipes, the air inlet branch pipes are arranged at intervals in the vertical direction, each air inlet branch pipe comprises an air outlet pipe opening, and the air outlet pipe openings penetrate through the working chamber and are communicated with the working chamber, and all the air outlet pipe openings are arranged on the same horizontal plane at intervals.

8. The dual zone heated air circulation oven of claim 7, wherein the inlet manifold further comprises an inlet port and a conduit connected between the inlet port and an outlet port, all of the conduits leading to the same inlet port.

9. The dual-zone heated air circulation oven of claim 7, wherein the outlet duct is rectangular, and the length direction of the outlet duct is consistent with the front-back direction of the working chamber.

10. The dual zone heated air circulation oven of claim 8, wherein each of the ducts has an arcuate segment.

11. The dual zone heated air circulation oven of claim 8, wherein the air inlet opening of the air inlet duct and the air outlet opening of the return duct are disposed in opposite directions within the air duct.

12. The dual zone heated air circulation oven of claim 1, further comprising a reverse flow shelf at the intersection of the radiant zone and the curing zone.

13. The dual zone heated air circulation oven of claim 12, wherein the blow down rack is an i-shaped structure.

14. The dual zone heated air circulation oven of claim 12, wherein the sides of the reverse rack facing the radiant zone and the curing zone, respectively, are concavely curved.