Electric heating oven

Abstract

The utility model belongs to the technical field of drying ovens, and particularly relates to an electric heating drying oven which comprises an oven body. The top of the box body is fixedly connected with a heating box; the top of the heating box is fixedly connected with an air inlet box; the top of the air inlet box is fixedly connected with a fan; the middle part of the fan is fixedly connected with an exhaust pipe; two air exhaust boxes are fixedly connected to the side wall of the box body; the two air exhaust boxes are oppositely arranged; the exhaust pipe is arranged in a T shape; the two ends of the exhaust pipe are fixedly connected to the middle of the exhaust box. The hot air flow in the box body is recycled, so that the hot air flow can repeatedly flow in the box body, heat energy can be fully utilized, heat waste in the box body is effectively reduced, temperature distribution in the box body can be more uniform, and the problem that the local temperature in the box body is too high or too low is solved; and the drying effects of different positions in the box body are effectively kept consistent, and the heat loss in the box body can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of ovens, and specifically relates to an electric heating oven. Background Technique

[0002] An electric heating oven is a device that uses electric heating elements to generate heat and heats and dries materials through methods such as hot air circulation.

[0003] Electric heating ovens can be used for heating and drying various materials and are widely used in many fields, such as industrial production, food processing, etc. In the prior art, electric heating ovens mainly convert electrical energy into heat energy through electric heating elements, and then use a fan to make hot air flow inside the oven, so that the materials are evenly heated and achieve the purpose of drying or heating.

[0004] During the operation of the electric heating oven, part of the air flow is directly discharged through the pipeline, and then fresh air is introduced for heating and discharged into the materials to be heated. The discharged air flow still contains a certain amount of heat energy, resulting in a large amount of heat energy loss and increasing the energy consumption during use.

[0005] Therefore, the utility model provides an electric heating oven. Summary of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background technique.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: An electric heating oven described in the utility model includes a box body; a heating box is fixedly connected to the top of the box body; an air inlet box is fixedly connected to the top of the heating box; a fan is fixedly connected to the top of the air inlet box; an exhaust pipe is fixedly connected to the middle of the fan; two exhaust boxes are fixedly connected to the side wall of the box body; the two exhaust boxes are arranged oppositely; the exhaust pipe is arranged in a T shape; both ends of the exhaust pipe are fixedly connected to the middle of the exhaust boxes; through the above structure, the hot air flow inside the box body is recycled, which can make the hot air flow flow repeatedly inside the box body, can make full use of the heat energy, and effectively reduce the heat waste inside the box body.

[0008] Preferably, two waste gas recovery boxes are fixedly connected to the end of the box body; the two waste gas recovery boxes are arranged oppositely; a recovery pipeline is fixedly connected to the top of the two waste gas recovery boxes; the middle of the recovery pipeline is arranged at the top position of the box body; an exhaust pipe is fixedly connected to the middle of the recovery pipeline; through the above structure, the waste gas recovery box discharges the waste gas inside the box body, which can effectively maintain the temperature and humidity inside the box body and effectively reduce the accumulation of water vapor and harmful gases in the waste gas inside the box body.

[0009] Preferably, a heat preservation board is fixedly connected to the top of the box body; the heat preservation board is fixedly connected to the outside of the air inlet box; through the above structure, the heat preservation board can effectively reduce the heat loss in the air inlet box and enable the hot air flow to maintain a relatively high temperature during the circulation process.

[0010] Preferably, a filter box is fixedly connected to the middle of the exhaust pipe; a filter plate is installed in the middle of the filter box; the filter plate is arranged inside the filter box; through the above structure, the filter plate can effectively intercept and remove dust and particulate impurities in the hot air flow, and enable the recycled hot air flow to be cleaner.

[0011] Preferably, two slide rails are fixedly connected to the middle of the filter box; the two slide rails are arranged oppositely; the filter plate is slidably connected to the middle of the two slide rails; through the above structure, the slide rails can make the movement of the filter plate in the filter box more smooth, and the installation and disassembly of the filter plate can be carried out through the guidance of the slide rails.

[0012] Preferably, two groups of connecting seats are fixedly connected to the side wall of the filter box; the two groups of connecting seats are arranged oppositely; a protective door is installed in the middle of each group of connecting seats; through the above structure, the protective door can effectively reduce the splashing generated when dust and particulate matter are intercepted by the filter plate.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. For the electric heating oven of the present utility model, by recycling the hot air flow inside the box body, the hot air flow can flow repeatedly inside the box body, the heat energy can be fully utilized, and the heat waste inside the box body can be effectively reduced.

[0015] 2. For the electric heating oven of the present utility model, by discharging the waste gas inside the box body through the waste gas recovery box, the temperature and humidity inside the box body can be effectively maintained, and the accumulation of water vapor and harmful gases in the waste gas inside the box body can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below with reference to the accompanying drawings.

[0017] Figure 1 is a perspective view of an electric heating oven in the present utility model;

[0018] Figure 2 is a schematic structural view of the waste gas recovery box in the present utility model;

[0019] Figure 3 is a schematic structural view of the heat preservation board in the present utility model;

[0020] Figure 4 is a schematic structural view of the filter plate in the present utility model;

[0021] Figure 5It is a schematic structural diagram of the protective door in the present utility model;

[0022] In the figure: 1. Box body; 11. Heating box; 12. Air inlet box; 13. Fan; 14. Exhaust pipe; 15. Exhaust air box; 2. Exhaust gas recovery box; 21. Recovery pipeline; 22. Exhaust pipe; 3. Heat preservation board; 4. Filter box; 41. Filter plate; 5. Slide rail; 6. Connection seat; 61. Protective door. Specific embodiments

[0023] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As Figure 1 and Figure 3 shown, an electric heating oven according to an embodiment of the present utility model includes a box body 1; a heating box 11 is fixedly connected to the top of the box body 1; an air inlet box 12 is fixedly connected to the top of the heating box 11; a fan 13 is fixedly connected to the top of the air inlet box 12; an exhaust pipe 14 is fixedly connected to the middle of the fan 13; two exhaust air boxes 15 are fixedly connected to the side wall of the box body 1; the two exhaust air boxes 15 are arranged oppositely; the exhaust pipe 14 is arranged in a T shape; both ends of the exhaust pipe 14 are fixedly connected to the middle of the exhaust air box 15; during operation, after the fan 13 is powered on and started, the air flow is discharged into the air inlet box 12 through the fan 13, the air flow is heated after passing through the heating box 11 and then enters the box body 1, the material enters the box body 1 for drying work, during the process of the hot air flow flowing in the box body 1, part of the hot air flow enters the exhaust pipe 14 through the two exhaust air boxes 15, the exhaust pipe 14 is connected to the fan 13, the air flow discharged from the box body 1 is extracted by the fan 13 through the exhaust pipe 14, and then enters the air inlet box 12 again and is discharged into the box body 1, so as to circulate and heat the air flow. By recycling the hot air flow inside the box body 1, the hot air flow can flow repeatedly inside the box body 1, the heat energy can be fully utilized, the heat loss inside the box body 1 can be effectively reduced, the temperature distribution inside the box body 1 can be made more uniform, the problem of local overheating or too low temperature inside the box body 1 can be reduced, the drying effect at different positions inside the box body 1 can be effectively kept consistent, and the heat loss inside the box body 1 can be effectively reduced, and the heat energy inside the box body 1 can be effectively utilized, thereby effectively improving the energy utilization efficiency.

[0025] As Figure 1 and Figure 2As shown in the figure, two exhaust gas recovery boxes 2 are fixedly connected to the end of the box body 1; the two exhaust gas recovery boxes 2 are arranged oppositely; a recovery pipeline 21 is fixedly connected to the top of the two exhaust gas recovery boxes 2; the middle of the recovery pipeline 21 is arranged at the top position of the box body 1; a exhaust pipe 22 is fixedly connected to the middle of the recovery pipeline 21; during operation, when the air flow flows inside the box body 1, the exhaust gas generated inside the box body 1 enters the inside of the recovery pipeline 21 through the two exhaust gas recovery boxes 2, and then passes through the inside of the recovery pipeline 21 and discharges the exhaust gas through the exhaust pipe 22. Discharging the exhaust gas inside the box body 1 through the exhaust gas recovery box 2 can effectively maintain the temperature and humidity inside the box body 1, effectively reduce the accumulation of water vapor and harmful gases in the exhaust gas inside the box body 1, effectively maintain the normal drying effect inside the box body 1, and discharging the exhaust gas inside the box body 1 can effectively reduce the humidity inside the box body 1, enabling heat to be better transferred to the object to be dried, thereby being able to accelerate the drying speed and effectively improve the efficiency of the drying work.

[0026] As Figure 1 and Figure 3 shown in the figure, a heat preservation board 3 is fixedly connected to the top of the box body 1; the heat preservation board 3 is fixedly connected to the outside of the air inlet box 12; during operation, when the hot air flow inside the box body 1 is discharged by the fan 13 into the inside of the air inlet box 12, the heat preservation board 3 blocks the heat of the air flow inside the air inlet box 12 from contacting the outside air. Through the heat preservation board 3, the heat dissipation in the air inlet box 12 can be effectively reduced, enabling the hot air flow to maintain a relatively high temperature during the circulation process, effectively improving the utilization rate of thermal energy, effectively keeping the temperature outside the air inlet box 12 in a relatively stable state, reducing the influence of the external environment on the temperature inside the air inlet box 12, and thus effectively reducing the energy consumption.

[0027] As Figure 1 and Figure 4 shown in the figure, a filter box 4 is fixedly connected to the middle of the exhaust pipe 14; a filter plate 41 is installed in the middle of the filter box 4; the filter plate 41 is arranged inside the filter box 4; during operation, when the hot air flow inside the box body 1 enters the inside of the exhaust pipe 14, the circulating hot air flow is filtered by the filter plate 41, and the filtered air flow is discharged into the inside of the fan 13 through the exhaust pipe 14. Through the filter plate 41, dust and particulate impurities in the hot air flow can be effectively intercepted and removed, enabling the recycled hot air flow to be cleaner, effectively reducing the entry of large particulate matter into the inside of the fan 13, reducing the friction and damage of these particulate matters to the internal components of the fan 13, effectively reducing the problem of difficult cleaning caused by the long-term residue of dust and particulate matter inside the fan 13, and effectively reducing the shutdown maintenance operation caused by wear.

[0028] As Figure 4As shown, two slide rails 5 are fixedly connected to the middle of the filter box 4; the two slide rails 5 are arranged oppositely; the filter plate 41 is slidably connected to the middle of the two slide rails 5; during operation, after the filter plate 41 intercepts dust and particulate matter in the air flow, the filter plate 41 is slid out of the filter box 4 through the slide rails 5. After the filter plate 41 is slid out, the dust impurities are cleaned or the filter plate 41 is replaced. Through the slide rails 5, the filter plate 41 can move more smoothly inside the filter box 4, and the installation and disassembly of the filter plate 41 can be carried out under the guidance of the slide rails 5. It can make the cleaning or replacement operation of impurities and particulate matter on the surface of the filter plate 41 simpler and faster. Moreover, the slide rails 5 can keep the filter plate 41 horizontal inside the filter box 4, effectively reducing the problem that the filtering effect decreases due to the inclination of the filter plate 41.

[0029] As Figure 5 shown, two groups of connecting seats 6 are fixedly connected to the side wall of the filter box 4; the two groups of connecting seats 6 are arranged oppositely; a protective door 61 is installed in the middle of each group of connecting seats 6; during operation, the two protective doors 61 are closed. The protective doors 61 block the splashing of dust and particulate matter when the air flow inside the filter box 4 passes through the filter plate 41. Through the protective doors 61, the splashing generated when the dust and particulate matter are intercepted by the filter plate 41 can be effectively reduced, the pollution caused by the overflow of dust and particulate matter can be effectively reduced, and it is convenient to take out the filter plate 41, effectively improving the efficiency of the filtering work.

[0030] During operation, the fan 13 is powered on and started. The fan 13 discharges the air flow into the air inlet box 12. The air flow enters the box body 1 after being heated by the heating box 11. The material enters the box body 1 for drying work. During the flow of the hot air flow inside the box body 1, part of the hot air flow enters the exhaust pipe 14 through the two exhaust air boxes 15. The exhaust pipe 14 is connected to the fan 13. The air flow discharged from the box body 1 is extracted by the fan 13 through the exhaust pipe 14 and enters the air inlet box 12 again and is discharged into the box body 1 to circulate and heat the air flow. During the flow of the air flow inside the box body 1, the waste gas generated inside the box body 1 enters the recovery pipeline 21 through the two waste gas recovery boxes 2, and then the waste gas is discharged through the exhaust pipe 22 inside the recovery pipeline 21. When the fan 13 discharges the hot air flow inside the box body 1 into the air inlet box 12, the heat insulation board 3 blocks the heat of the air flow inside the air inlet box 12 from contacting the outside air. When the hot air flow inside the box body 1 enters the exhaust pipe 14, the filter plate 41 filters the circulating hot air flow, and the filtered air flow is discharged into the fan 13 through the exhaust pipe 14. After the filter plate 41 intercepts dust and particulate matter in the air flow, the filter plate 41 is slid out of the filter box 4 through the slide rails 5. After the filter plate 41 is slid out, the dust impurities are cleaned or the filter plate 41 is replaced. The two protective doors 61 are closed, and the protective doors 61 block the splashing of dust and particulate matter when the air flow inside the filter box 4 passes through the filter plate 41.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An electric heating oven, comprising a housing (1); characterized in that: The top of the box body (1) is fixedly connected to a heating box (11); the top of the heating box (11) is fixedly connected to an air inlet box (12); the top of the air inlet box (12) is fixedly connected to a fan (13); the middle of the fan (13) is fixedly connected to an exhaust pipe (14); the side wall of the box body (1) is fixedly connected to two exhaust boxes (15); the two exhaust boxes (15) are arranged opposite to each other; the exhaust pipe (14) is arranged in a T shape; the two ends of the exhaust pipe (14) are respectively fixedly connected to the middle of the exhaust box (15).

2. An electric heating oven according to claim 1, characterized in that: Two waste gas recovery boxes (2) are fixedly connected to the end of the box body (1); the two waste gas recovery boxes (2) are arranged opposite to each other; the tops of the two waste gas recovery boxes (2) are fixedly connected to recovery pipes (21); the middle of the recovery pipes (21) are arranged at the top of the box body (1); the middle of the recovery pipes (21) are fixedly connected to an exhaust pipe (22).

3. An electric heating oven according to claim 2, characterized in that: A heat preservation plate (3) is fixedly connected to the top of the box body (1); the heat preservation plate (3) is fixedly connected to the outside of the air inlet box (12).

4. An electric heating oven according to claim 3, characterized in that: A filter box (4) is fixedly connected to the middle of the exhaust pipe (14); a filter plate (41) is installed in the middle of the filter box (4); and the filter plate (41) is arranged inside the filter box (4).

5. An electric heating oven according to claim 4, characterized in that: Two slide rails (5) are fixedly connected to the middle of the filter box (4); the two slide rails (5) are arranged opposite to each other; and the filter plate (41) is slidably connected to the middle of the two slide rails (5).

6. An electric heating oven according to claim 5, characterized in that: Two groups of connection seats (6) are fixedly connected to the side wall of the filter box (4); the two groups of connection seats (6) are arranged opposite to each other; and a protective door (61) is installed in the middle of each group of connection seats (6).

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