Outer circulation structure of drying oven

Abstract

The utility model relates to an outer circulation structure of a drying oven, which belongs to the field of drying machines, and comprises a drying oven, an air inlet box, an air outlet box and an induced draft fan, an air inlet pipe is arranged on the air inlet box, the air inlet pipe is connected with the drying oven, an air outlet pipe is arranged on the air outlet box, the air outlet pipe is connected with the drying oven, and the induced draft fan is connected with the air outlet box. The air inlet pipe is arranged between the air inlet box and the drying oven, the air outlet pipe is arranged between the air outlet box and the drying oven, the induced draft fan is connected with the air outlet box, the induced draft fan does not need to be installed in the drying oven, the cleaning degree in the drying oven is improved, and the drying oven is convenient to use.

Description

Technical Field

[0001] The present application relates to the field of dryers, and in particular to an external circulation structure of a drying oven. Background Art

[0002] An oven is a drying device used to dry items. It is commonly used in workshops or laboratories in industry, agriculture, healthcare, universities, and scientific research departments. Traditional ovens are generally equipped with a fan circulation device and a radiator, which allows the heat to enter the oven after cooling. However, the materials inside the oven are dusty and particulate. After the hot air circulates for a period of time, the radiator inside the oven is easily contaminated with dust and particles, which can easily breed bacteria. The oven cavity is also difficult to clean, and the cleanliness requirements cannot be met. Therefore, improvements are needed. Utility Model Content

[0003] In order to improve the above problems, the present application provides an oven external circulation structure.

[0004] The present application provides an oven external circulation structure that adopts the following technical solutions:

[0005] An oven external circulation structure includes an oven, an air inlet box, an air outlet box and an induced draft fan, wherein the air inlet box is provided with an air inlet pipe connected to the oven, the air outlet box is provided with an air outlet pipe connected to the oven, and the induced draft fan is connected to the air outlet box.

[0006] By adopting the above technical solution, an air inlet duct is set between the air inlet box and the oven, an air outlet duct is set between the air outlet box and the oven, and the induced draft fan and the air outlet box are connected. There is no need to install the induced draft fan in the oven, which improves the cleanliness of the oven and facilitates the use of the oven.

[0007] Preferably, a filter and a radiator are provided in the air inlet box.

[0008] By adopting the above technical solution, the filter can filter the inhaled air, thereby improving the purity of the gas entering the oven; the radiator can discharge the heat in the air, and the radiator is installed in the air inlet box, which reduces the possibility of dust and particles adhering to the radiator and extends the service life of the radiator.

[0009] Preferably, the air inlet duct includes a first section and a second section, the first section and the second section are fixedly connected, the first section and the air inlet box are detachably connected, and the second section and the oven are detachably connected.

[0010] By adopting the above technical solution, the operator can disassemble the first section and the air inlet box, and disassemble the second section and the drying oven, thereby cleaning the first section and the second section, thereby improving the cleanliness of the air inlet pipe.

[0011] Preferably, the air outlet duct includes a third section and a fourth section, the third section and the fourth section are fixedly connected, the third section and the air outlet box are detachably connected, and the fourth section and the oven are detachably connected.

[0012] By adopting the above technical solution, the operator can disassemble the third section and the air outlet box, and disassemble the fourth section and the drying oven, thereby cleaning the third section and the fourth section, thereby improving the cleanliness of the outlet pipe.

[0013] Preferably, a first flange is fixedly connected to the first section, the first flange is fitted with the air inlet box, a first bolt is provided on the first flange, the first bolt passes through the first flange and is threadedly connected to the air inlet box, and a second flange is fixedly connected to the second section, the second flange is fitted with the oven, a second bolt is provided on the second flange, the second bolt passes through the second flange and is threadedly connected to the oven.

[0014] By adopting the above technical solution, when it is necessary to install the first section, the operator can move the first section so that the first flange fits the air inlet box, and then screw in the first bolt to install the first section; when it is necessary to install the second section, the operator can move the second section so that the second flange fits the oven, and then screw in the second bolt to install the second section, so that the air in the air inlet box can enter the oven, thereby facilitating the discharge of air.

[0015] Preferably, the third section is fixedly connected with a third flange, the third flange is fitted with the air outlet box, the third flange is provided with a third bolt, the third bolt passes through the third flange and is threadedly connected to the air outlet box, and the fourth section is fixedly connected with a fourth flange, the fourth flange is fitted with the oven, the fourth flange is provided with a fourth bolt, the fourth bolt passes through the fourth flange and is threadedly connected to the oven.

[0016] By adopting the above technical solution, when the third section needs to be installed, the operator can move the third section so that the third flange fits the air outlet box, and then screw in the third bolt to install the third section; when the fourth section needs to be installed, the operator can move the fourth section so that the fourth flange fits the oven, and then screw in the fourth bolt to install the fourth section, so that the air in the oven can enter the air outlet box, thereby facilitating the discharge of air.

[0017] Preferably, the air outlet box includes a connecting part and a filtering part, the filtering part and the connecting part are detachably connected, the air outlet pipe is connected to the connecting part, the filtering part is connected to the induced draft fan, a filter screen is provided in the filtering part, and the filter screen is made of 316 stainless steel.

[0018] By adopting the above technical solution, when the air in the oven enters the air outlet box, the air can be filtered through the filter to filter out dust particles in the air, thereby improving the cleanliness of the air when it is discharged; the operator can disassemble the filter part and clean the filter to facilitate the subsequent use of the filter.

[0019] Preferably, a connecting ring is fixedly connected to the side of the connecting portion facing the filter portion, the inner wall of the filter portion is threadedly connected to the connecting ring, and a sealing ring is provided on the side of the filter portion facing the connecting portion, and the sealing ring abuts against the connecting portion.

[0020] By adopting the above technical solution, when the filter part needs to be installed, the operator moves the filter part close to the connecting ring and rotates the filter part so that the filter part is threadedly connected to the connecting ring, thereby achieving fixed installation of the filter part; the sealing ring can improve the sealing degree between the connecting part and the filter part, reducing the possibility of air leakage.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. Through the arrangement of the air inlet box, air outlet box, air inlet pipe and air outlet pipe, an air inlet pipe is arranged between the air inlet box and the oven, an air outlet pipe is arranged between the air outlet box and the oven, and an induced draft fan is connected to the air outlet box, eliminating the need to install the induced draft fan inside the oven, thereby improving the cleanliness inside the oven and facilitating the use of the oven;

[0023] 2. Through the setting of the connection part, the filter part and the filter screen, when the air in the oven enters the air outlet box, the air can be filtered through the filter screen to filter out the dust particles in the air, thereby improving the cleanliness of the air when it is discharged; the operator can disassemble the filter part and clean the filter screen to facilitate the subsequent use of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure used to reflect the external circulation structure of the oven in the embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the bellows in the embodiment of the present application.

[0026] Explanation of the accompanying drawings: 1. oven; 2. air inlet box; 21. filter; 22. radiator; 3. air outlet box; 31. connecting part; 311. connecting ring; 32. filter part; 321. filter screen; 322. sealing ring; 4. induced draft fan; 5. air inlet duct; 51. first subdivision; 511. first flange; 512. first bolt; 52. second subdivision; 521. second flange; 522. second bolt; 6. air outlet duct; 61. third subdivision; 611. third flange; 612. third bolt; 62. fourth subdivision; 621. fourth flange; 622. fourth bolt. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-2 This application is described in further detail.

[0028] The embodiment of the present application discloses an oven external circulation structure, such as Figure 1 As shown, the drying oven 1 includes an air inlet box 2, an air outlet box 3, and an induced draft fan 4. The air inlet box 2 is provided with an air inlet duct 5 connected to the drying oven 1. The air outlet box 3 is provided with an air outlet duct 6 connected to the drying oven 1. The induced draft fan 4 is connected to the air outlet box 3 and is located below the air outlet box 3. In actual operation, the operator drives the induced draft fan 4, and the air inlet box 2 can draw in air. The air enters the drying oven 1 through the air inlet duct 5. The air in the drying oven 1 enters the air outlet box 3 through the air outlet duct 6 and is discharged through the induced draft fan 4.

[0029] like Figure 1 As shown, a filter 21 and a radiator 22 are installed within the air inlet box 2. Filter 21 is a cartridge air filter, and radiator 22 is a SEMEM-SRZ radiator. Filter 21 filters the air entering the air inlet box 2, improving the purity of the air entering the oven 1. Radiator 22 removes heat from the air. Its installation within the air inlet box 2 reduces the likelihood of dust and particles adhering to radiator 22, extending its service life and facilitating drying operations in the oven 1.

[0030] like Figure 1As shown, the air inlet duct 5 includes a first section 51 and a second section 52. The first section 51 and the second section 52 are fixedly connected, and the first section 51 is detachably connected to the air inlet box 2, while the second section 52 is detachably connected to the oven 1. A first flange 511 is fixedly connected to the air outlet of the first section 51, which is in contact with the air inlet box 2. A first bolt 512 is provided on the first flange 511, which passes through the first flange 511 and is threadedly connected to the air inlet box 2. The second section 52 is provided with two air outlets. A second flange 521 is fixedly connected to the air outlet of the second section 52, which is in contact with the oven 1. A second bolt 522 is provided on the second flange 521, which passes through the second flange 521 and is threadedly connected to the oven 1. Operators can disassemble the first and second sections 51, 52 for cleaning, improving the cleanliness of the first and second sections 51, 52. When the first section 51 needs to be installed, the operator moves the first section 51 to drive the movement of the first flange 511, so that the first flange 511 moves to a suitable position of the air inlet box 2 and fits with the air inlet box 2, and then screws in the first bolt 512, so that the first bolt 512 is rotated to abut against the first flange 511. The first bolt 512 can limit the first flange 511, thereby limiting the first section 51, thereby realizing the installation of the first section 51 and the air inlet box 2, and facilitating the air to flow into the first section 51 through the air inlet box 2. When the second section 52 needs to be installed, the operator moves the second section 52 to drive the movement of the second flange 521, so that the second flange 521 moves to a suitable position of the oven 1 and fits with the oven 1, and then screws in the second bolt 522 to rotate the second bolt 522 until it abuts against the second flange 521. The second bolt 522 can limit the second flange 521, thereby limiting the second section 52, thereby realizing the installation of the second section 52 and the oven 1, and facilitating the air to flow into the oven 1 through the second section 52.

[0031] like Figure 1As shown, the air outlet duct 6 includes a third section 61 and a fourth section 62. The third section 61 and the fourth section 62 are fixedly connected, and the third section 61 is detachably connected to the air outlet box 3. The fourth section 62 is detachably connected to the oven 1. A third flange 611 is fixedly connected to the air outlet of the third section 61, and the third flange 611 is in contact with the air outlet box 3. A third bolt 612 is provided on the third flange 611, and the third bolt 612 passes through the third flange 611 and is threadedly connected to the air outlet box 3. The fourth section 62 is provided with two air outlets. A fourth flange 621 is fixedly connected to the sealing portion of the fourth section 62, and the fourth flange 621 is in contact with the oven 1. A fourth bolt 622 is provided on the fourth flange 621, and the fourth bolt 622 passes through the fourth flange 621 and is threadedly connected to the oven 1. The operator can disassemble the third section 61 and the fourth section 62 and clean them, thereby improving the cleanliness of the third section 61 and the fourth section 62. When the third section 61 needs to be installed, the operator moves the third section 61 to drive the movement of the third flange 611, so that the third flange 611 moves to a suitable position on the air outlet box 3 and fits with the air outlet box 3. Then, the operator screws in the third bolt 612 and rotates it until it abuts against the third flange 611. The third bolt 612 can limit the third flange 611 and thus limit the third section 61, thereby achieving the installation of the third section 61 and the air outlet box 3, and facilitating the air flow into the air outlet box 3 through the third section 61. When the fourth division 62 needs to be installed, the operator moves the fourth division 62 to drive the movement of the fourth flange 621, so that the fourth flange 621 moves to a suitable position of the oven 1 and fits with the oven 1, and then screws in the fourth bolt 622 to rotate the fourth bolt 622 to abut against the fourth flange 621. The fourth bolt 622 can limit the fourth flange 621, thereby limiting the fourth division 62, thereby realizing the installation of the fourth division 62 and the oven 1, and facilitating the air to flow into the third division 61 through the fourth division 62.

[0032] like Figure 1 and 2As shown, the air outlet box 3 includes a connecting portion 31 and a filter portion 32. The filter portion 32 and the connecting portion 31 are detachably connected. The third subsection 61 and the connecting portion 31 are detachably connected. The filter portion 32 is connected to the induced draft fan 4. A filter screen 321 is installed in the filter portion 32. The filter screen 321 is made of 316 stainless steel. A connecting ring 311 is fixedly connected to the side of the connecting portion 31 facing the filter portion 32. The inner wall of the filter portion 32 is threadedly connected to the connecting ring 311. A sealing ring 322 is provided on the side of the filter portion 32 facing the connecting portion 31. The sealing ring 322 abuts the connecting portion 31. When air in the third subsection 61 flows into the connecting portion 31, the air in the connecting portion 31 passes through the filter screen 321 and flows into the induced draft fan 4. The filter screen 321 can filter dust particles in the air, reducing the impact of the air on the environment. The operator can disassemble the filter portion 32 and clean the filter screen 321 to facilitate subsequent use of the filter screen 321. When the filter part 32 needs to be installed, the operator moves the filter part 32 and rotates the filter part 32 so that the filter part 32 is threadedly connected to the connecting ring 311, thereby achieving fixed installation of the filter part 32, and the sealing ring 322 can improve the sealing degree between the connecting part 31 and the filter part 32, reducing the possibility of air leakage.

[0033] The implementation principle of an oven external circulation structure in the embodiment of the present application is:

[0034] The operator drives the induced draft fan 4, and air can be sucked into the air inlet box 2. After being filtered by the filter 21 and dissipated by the radiator 22, the air flows into the air inlet pipe 5. The air in the air inlet pipe 5 flows into the oven 1 to facilitate the drying work of the oven 1. The air in the oven 1 can flow into the air outlet pipe 6. The air in the air outlet pipe 6 can flow into the air outlet box 3, and is filtered through the filter 321, and finally discharged through the induced draft fan 4.

[0035] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An oven external circulation structure, comprising an oven (1), characterized in that: The invention also comprises an air inlet box (2), an air outlet box (3) and an induced draft fan (4); the air inlet box (2) is provided with an air inlet pipe (5), the air inlet pipe (5) is connected to the oven (1); the air outlet box (3) is provided with an air outlet pipe (6), the air outlet pipe (6) is connected to the oven (1); and the induced draft fan (4) is connected to the air outlet box (3).

2. The oven external circulation structure according to claim 1, characterized in that: A filter (21) and a radiator (22) are provided in the air inlet box (2).

3. The oven external circulation structure according to claim 1, characterized in that: The air inlet pipe (5) comprises a first section (51) and a second section (52), wherein the first section (51) and the second section (52) are fixedly connected, the first section (51) and the air inlet box (2) are detachably connected, and the second section (52) and the oven (1) are detachably connected.

4. The oven external circulation structure according to claim 1, characterized in that: The air outlet pipe (6) comprises a third section (61) and a fourth section (62); the third section (61) and the fourth section (62) are fixedly connected; the third section (61) and the air outlet box (3) are detachably connected; and the fourth section (62) and the oven (1) are detachably connected.

5. The oven external circulation structure according to claim 3, characterized in that: The first section (51) is fixedly connected with a first flange (511), the first flange (511) is fitted with the air inlet box (2), the first flange (511) is provided with a first bolt (512), the first bolt (512) passes through the first flange (511) and is threadedly connected to the air inlet box (2), the second section (52) is fixedly connected with a second flange (521), the second flange (521) is fitted with the oven (1), the second flange (521) is provided with a second bolt (522), the second bolt (522) passes through the second flange (521) and is threadedly connected to the oven (1).

6. The oven external circulation structure according to claim 4, characterized in that: The third section (61) is fixedly connected with a third flange (611), the third flange (611) is fitted with the air outlet box (3), the third flange (611) is provided with a third bolt (612), the third bolt (612) passes through the third flange (611) and is threadedly connected to the air outlet box (3), the fourth section (62) is fixedly connected with a fourth flange (621), the fourth flange (621) is fitted with the oven (1), the fourth flange (621) is provided with a fourth bolt (622), the fourth bolt (622) passes through the fourth flange (621) and is threadedly connected to the oven (1).

7. The oven external circulation structure according to claim 1, characterized in that: The air outlet box (3) comprises a connecting portion (31) and a filtering portion (32); the filtering portion (32) and the connecting portion (31) are detachably connected; the air outlet pipe (6) is connected to the connecting portion (31); the filtering portion (32) is connected to the induced draft fan (4); a filter screen (321) is provided in the filtering portion (32); and the filter screen (321) is made of 316 stainless steel.

8. The oven external circulation structure according to claim 7, characterized in that: A connecting ring (311) is fixedly connected to the side of the connecting portion (31) facing the filter portion (32); the inner wall of the filter portion (32) and the connecting ring (311) are threadedly connected; a sealing ring (322) is provided on the side of the filter portion (32) facing the connecting portion (31); the sealing ring (322) and the connecting portion (31) are in abutment with each other.

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