CN204544678U - A kind of hot air circulation equipment - Google Patents

Abstract

The utility model relates to mechanical drying equipment, in particular to a hot air circulation equipment, mainly comprising: five ovens, a heat exchanger and a total exhaust pipe, the ovens are divided into a first oven, a second oven and a third oven , the fourth oven and the fifth oven, the third oven, the fourth oven and the fifth oven are respectively provided with several heat exchangers and some circulation exhaust pipes, the first oven, the second oven, the third oven 1. Both the fourth oven and the fifth oven are provided with an upper exhaust duct, the heat exchanger is provided with an exhaust device, the first oven and the second oven discharge hot air through a circulating exhaust duct, and the upper exhaust duct is provided for The damper for adjusting the exhaust air volume, the connection between the heat exchanger and the exhaust device is provided with a damper for adjusting the air volume, and the hot air is recycled and provided to the oven in the previous section as a fresh air source, which greatly improves the energy consumption. The utilization rate reduces the waste of energy.

Description

A hot air circulation device

technical field

The utility model relates to mechanical drying equipment, in particular to a hot air circulation equipment.

Background technique

At present, there are laminating machines at home and abroad. The drying technology of the oven adopts the hot air sprayed from the nozzle of the upper oven. The hot air is directly blown on the film surface on the surface of the guide roller to make the solvent volatilize and the glue is solidified. The small holes in the upper oven are used as air outlets. During this process, when the machine stops due to failures such as film breakage, the film will float due to film tension and wind flow field inside the oven, which will cause the coating or glue layer on the film surface to When dry, it comes into contact with the upper oven and suffers damage to become waste.

Glue curing requires processing and drying time, which leads to waste of energy and reduces drying efficiency; at the same time, the heat of hot air drying in the prior art cannot be recycled and energy is wasted, so it is necessary to design a new structure Hot air circulation drying equipment.

Contents of the invention

In order to achieve the above object, the utility model adopts the following technical scheme as a kind of hot air circulation equipment, which mainly includes: five ovens, heat exchangers and total exhaust pipes, the ovens are divided into the first oven, the second oven, the third Oven, the fourth oven and the fifth oven, the third oven, the fourth oven and the fifth oven are respectively provided with several heat exchangers and several horizontal circulation exhaust pipes, the first oven, the second oven, The third oven, the fourth oven and the fifth oven are all provided with an upper air duct, and the heat exchanger is provided with an exhaust device, and the heat exchanger is connected to the air inlets of the third oven, the fourth oven and the fifth oven.

In the above solution, the fifth oven is connected to the third oven through the circulation exhaust pipe, the fourth oven is connected to the second oven through the circulation exhaust pipe, and the third oven is connected to the first oven through the circulation exhaust pipe.

In the above solution, the first oven and the second oven draw in hot air through the circulation exhaust pipe.

Further, the first oven, the second oven, the third oven, the fourth oven and the fifth oven communicate with the main exhaust duct through the upper exhaust duct respectively.

Further, the upper air ducts of the third oven, the fourth oven and the fifth oven communicate with the circulation exhaust duct, and the upper air ducts are provided with dampers for adjusting the exhaust air volume.

Further, the fourth oven is provided with at least two heat exchangers, and the third oven and the fifth oven are respectively provided with at least one heat exchanger.

Further, the connection between the heat exchanger and the ventilation device is provided with a damper for adjusting the air volume.

The utility model has the advantages of:

1. The heating cycle of the oven can save electricity consumption and sewage discharge. The hot air cycle is used to provide the previous oven as a fresh air source, which greatly improves the energy utilization rate and reduces energy waste;

2. Reduce the cost of production energy consumption, greatly save electric energy and heat energy, and also save heat energy consumption to the atmosphere, respond to the national energy conservation and emission reduction, green environmental protection goals and tasks, and create greater benefits for equipment users.

Description of drawings:

 Accompanying drawing 1 is the front view of the utility model;

Accompanying drawing 2 is the top view of the utility model;

Accompanying drawing 3 is the schematic diagram of the utility model.

Detailed ways:

Referring to Figures 1 to 3, a hot air circulation device mainly includes: five ovens, a heat exchanger 6 and a total exhaust pipe 8, and the ovens are divided into a first oven 1, a second oven 2, and a third oven 3 , the fourth oven 4 and the fifth oven 5, the third oven 3, the fourth oven 4 and the fifth oven 5 are respectively provided with several heat exchangers 6 and some horizontal circulation exhaust pipes 7, and the heat exchanger 6 is provided with There is an exhaust device 61, and the heat exchanger 6 is connected to the air inlets of the third oven 3, the fourth oven 4 and the fifth oven 5, and the exhaust device 61 transports air to the heat exchanger 6 for heating, and the hot air passes through the air inlet Into the third oven 3, the fourth oven 4 and the fifth oven 5, the first oven 1 and the second oven 2 draw hot air through the circulation exhaust pipe 7, and the fifth oven 5 is connected to the third oven through the circulation exhaust pipe 7. The hot air discharged from the oven 3 and the fifth oven 5 enters the third oven 3 for recycling through the circulation exhaust pipe 7, the fourth oven 4 is connected to the second oven 2 through the circulation exhaust pipe 7, and the third oven 3 passes through the circulation exhaust pipe 7 is connected to the first oven 1, and the hot air discharged from the third oven 3 enters the first oven 1 for recycling through the circulation exhaust pipe 7, which greatly improves the utilization rate of energy and reduces the waste of energy.

Above-mentioned first oven 1, second oven 2, the 3rd oven 3, the 4th oven 4 and the 5th oven 5 are all provided with upper air duct 9, described first oven 1, second oven 2, third oven The oven 3, the fourth oven 4 and the fifth oven 5 communicate with the main exhaust duct 8 through the upper exhaust duct 9 respectively, and the unusable gas in the cabinet 1 is discharged to the solvent recovery through the main exhaust duct 8.

As a preferred technical solution, the upper exhaust duct 9 of the third oven 3, the fourth oven 4 and the fifth oven 5 communicates with the circulation exhaust duct 7, and the upper exhaust duct 9 is provided with a damper 62 for adjusting the exhaust air volume , to control the air volume entering the total exhaust pipe 8, the connection between the heat exchanger 6 and the exhaust device 61 is provided with a damper 62 for adjusting the air volume, to control the air volume entering the heat exchanger 6, and the fourth oven 4 is provided with at least two The heat exchanger 6, the third oven 3 and the fifth oven 5 are respectively provided with at least one heat exchanger 6.

The working principle is that the fifth oven 5 uses natural air from the atmosphere to enter the heat exchanger 6 to heat the hot air to a certain temperature for the normal use of the fifth oven 5, and part of the hot air discharged from the fifth oven 5 is recirculated as fresh air and supplied to the first oven through the circulating exhaust pipe 7. The third oven 3 is used; part of the hot air discharged from the third oven 3 is recirculated through the circulation exhaust pipe 7 and used as fresh air to supply the first oven 1; the fourth oven 4 uses atmospheric natural wind to heat the hot air to a certain temperature for the fourth oven 4 In normal use, part of the hot air discharged from the fourth oven 4 is recirculated through the circulation exhaust pipe 7 and used as fresh air to supply the second oven 2; the first oven 1 and the second oven 2 pass all the air through the upper exhaust pipe 9 into the main exhaust The air duct 8, the third oven 3, the fourth oven 4 and the fifth oven 5 enter part of the gas through the upper exhaust duct 9 into the main exhaust duct 8, and finally the gas is discharged from the main exhaust duct 8.

Certainly, the above are only preferred implementation modes of the present utility model, and are not intended to limit the scope of application of the present utility model. Therefore, any equivalent changes made on the principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (7)

1. A hot air circulation device, mainly comprising: five ovens, a heat exchanger (6) and a total exhaust pipe (8), the ovens are divided into a first oven (1), a second oven (2), The third oven (3), the fourth oven (4) and the fifth oven (5), are characterized in that: the third oven (3), the fourth oven (4) and the fifth oven (5) are respectively There are several heat exchangers (6) and several horizontal circulation exhaust pipes (7), the first oven (1), the second oven (2), the third oven (3), the fourth oven (4) and the fifth oven (5) are provided with an upper air duct (9), the heat exchanger (6) is provided with an exhaust device (61), and the heat exchanger (6) is connected to the third oven (3), The air inlets of the fourth oven (4) and the fifth oven (5). 2. A hot air circulation device according to claim 1, characterized in that: the fifth oven (5) is connected to the third oven (3) through the circulation exhaust pipe (7), and the fourth oven (4 ) is communicated with the second oven (2) through the circulation exhaust pipe (7), and the third oven (3) is communicated with the first oven (1) through the circulation exhaust pipe (7). 3. A hot air circulation device according to claim 1 or 2, characterized in that: the first oven (1) and the second oven (2) draw in hot air through the circulation exhaust pipe (7). 4. A hot air circulation device according to claim 3, characterized in that: the first oven (1), the second oven (2), the third oven (3), the fourth oven (4) and The fifth oven (5) communicates with the main exhaust duct (8) through the upper exhaust duct (9) respectively. 5. A hot air circulation device according to claim 4, characterized in that: the upper exhaust ducts (9) of the third oven (3), the fourth oven (4) and the fifth oven (5) It communicates with the circulating exhaust duct (7), and the upper exhaust duct (9) is provided with a damper (62) for adjusting the exhaust air volume. 6. A hot air circulation device according to claim 1, characterized in that: the fourth oven (4) is provided with at least two heat exchangers (6), the third oven (3) and the fifth oven (5) At least one heat exchanger (6) is respectively provided. 7. The hot air circulation equipment according to claim 1, characterized in that: the connection between the heat exchanger (6) and the ventilation device (61) is provided with a damper (62) for adjusting the air volume.