Hot air recovery device

Abstract

The hot air recovery device comprises air suction components, transition straight pipes and a power unit, and the air suction components are arranged on the outer sides of the two ends of a drying oven and connected with the power unit through the transition straight pipes; the air suction component comprises a first air suction pipe, a second air suction pipe, a connecting air pipe and a confluence air pipe, a plurality of air suction openings are formed in the first air suction pipe and the second air suction pipe, and the first air suction pipe and the second air suction pipe are used for sucking overflowed hot air from the outer side of the drying oven through the air suction openings; the two ends of one side of the connecting air pipe are connected with the first air suction pipe and the second air suction pipe correspondingly, the other side of the connecting air pipe is connected with the confluence air pipe, and the connecting air pipe is used for guiding hot air into the confluence air pipe. The air suction components are arranged on the outer sides of the two ends of the drying oven to form a concentric-square-shaped structure, and the air suction baffle is matched, so that hot air overflow is reduced, the hot air recovery efficiency is ensured, and the energy utilization rate is increased.

Description

Technical Field

[0001] This application relates to the technical field of drying equipment, and particularly to a hot air recovery device. Background Art

[0002] In the production process involving the drying process in industrial production, the heat utilization rate is a key factor affecting production efficiency and energy conservation. With the global emphasis on sustainable development and energy efficiency, while ensuring product quality, reducing production costs and environmental impacts has become the current trend. In this context, the recovery of waste heat from equipment has gradually become the focus of development.

[0003] In the existing drying process system during the heat treatment process, the exhaust system usually discharges hot air and moisture simultaneously, resulting in waste of heat. This not only prolongs the time required for the equipment to reheat, but also reduces the overall efficiency of the production line, increases energy consumption and operating costs. In addition, the existing hot air recovery devices often have complex structures, high costs, and low hot air recovery efficiency. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present utility model provides a hot air recovery device to solve the problems of heat waste and high energy consumption in the existing drying process system mentioned in the above background.

[0005] To achieve the above object, the specific technical solution of the present utility model is as follows:

[0006] A hot air recovery device includes: an air suction component, a transition straight pipe, and a power unit. The air suction component is arranged outside both ends of the oven and is connected to the power unit through the transition straight pipe;

[0007] The air suction component includes a first air suction pipe, a second air suction pipe, a connecting air duct, and a confluence air duct;

[0008] A plurality of air suction openings are arranged on the first air suction pipe and the second air suction pipe. The first air suction pipe and the second air suction pipe are used to suck the overflowing hot air from the outside of the oven through the air suction openings;

[0009] Both ends of one side of the connecting air duct are respectively connected to the first air suction pipe and the second air suction pipe, and the other side thereof is connected to the confluence air duct. The connecting air duct is used to guide the hot air into the confluence air duct.

[0010] Further, the first air suction pipe and the second air suction pipe are arranged opposite to each other, and a support portion is arranged between the first air suction pipe and the second air suction pipe.

[0011] Further, assembly brackets are respectively arranged on one side of the first air suction pipe and the second air suction pipe.

[0012] Further, an outer shell is provided on the outside of the air suction component. The outer shell is connected to the air suction component through an assembly bracket, and its size is larger than the overall size of the air suction component.

[0013] Further, an air suction baffle is provided on the outer shell. The first air suction pipe and the second air suction pipe are arranged oppositely to form a gap, and the air suction baffle is located at the gap position.

[0014] Further, the power unit adopts an explosion-proof variable-frequency fan.

[0015] Further, the air suction component, the transition straight pipe, and the power unit are all wrapped with heat-insulating cotton, and a sealing flange is provided at the interface.

[0016] Further, the power unit has a suction side and a discharge side. Its suction side is connected to the transition straight pipe, and a reserved air pipe is provided on its discharge side. The reserved air pipe can be connected to an air transportation and heating control device.

[0017] Compared with the prior art, the technical solution provided by the present application has the following beneficial effects:

[0018] 1. By arranging the air suction component on the outside of both ends of the oven to form a loop structure, the hot air overflowing from both sides of the oven can be effectively collected, ensuring the effective utilization of the overflowing hot air and reducing the energy consumption of the oven.

[0019] 2. By setting the air suction baffle, the hot air and moisture are effectively blocked from overflowing from both sides of the oven, preventing the loss of hot air and enhancing the efficiency of hot air recovery.

[0020] 3. By wrapping the hot air recovery device with heat-insulating cotton and setting a sealing flange at the interface, the heat transfer loss in the pipeline is effectively prevented, ensuring the heat of the hot air during the recovery process and improving the energy efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a hot air recovery device of the present utility model;

[0022] Figure 2 It is a front view of the air suction component of a hot air recovery device of the present utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the first air suction pipe of a hot air recovery device of the present utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the outer shell of a hot air recovery device of the present utility model.

[0025] Reference Signs:

[0026] 1. Power unit; 2. Transition straight pipe; 3. First air suction pipe; 4. Second air suction pipe; 5. Connecting air duct; 6. Confluence air duct; 7. Air suction port; 8. Support part; 9. Outer shell; 9-1. Air suction baffle; 10. Assembly bracket; 11. Reserved air duct. Detailed implementation mode

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. The same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, the descriptions involving "first", "second", etc. in the present application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0030] As Figures 1 to 4 shown, an embodiment of the present invention provides a hot air recovery device, including: an air suction component, a transition straight pipe 2 and a power unit 1. The air suction component is arranged outside both ends of the oven and is connected to the power unit 1 through the transition straight pipe 2;

[0031] The air suction component includes a first air suction pipe 3, a second air suction pipe 4, a connecting air duct 5 and a confluence air duct 6.

[0032] The power unit 1 uses a plurality of air suction ports 7 provided on the first air suction pipe 3 and the second air suction pipe 4. The first air suction pipe 3 and the second air suction pipe 4 are used to suck the overflowing hot air from the outside of the oven through the air suction ports 7.

[0033] Both ends of one side of the connecting air duct 5 are respectively connected to the first suction air duct 3 and the second suction air duct 4, and the other side is connected to the confluence air duct 6. The connecting air duct 5 is used to guide the hot air into the confluence air duct 6.

[0034] A negative pressure is formed in the suction component and the transition straight pipe 2 by the power unit 1. The suction component uses the suction openings 7 on the first suction air duct 3 and the second suction air duct 4 to suck in the hot air overflowing outside the oven. The sucked hot air flows through the connecting air duct 5 to the confluence air duct 6, and then is output from the discharge side of the power unit 1 through the transition straight pipe 2 to complete the hot air recovery process.

[0035] Preferably, the first suction air duct 3 and the second suction air duct 4 have the same shape and size. The first suction air duct 3 and the second suction air duct 4 are arranged oppositely, and two or more support parts 8 are arranged between them.

[0036] The gap formed between the first suction air duct 3 and the second suction air duct 4 arranged oppositely ensures the normal operation of the oven while maximizing the efficiency of hot air recovery. The several support parts 8 arranged between the first suction air duct 3 and the second suction air duct 4 enhance the stability of the overall structure of the suction component.

[0037] Preferably, several assembly brackets 10 are respectively arranged on one side of the first suction air duct 3 and the second suction air duct 4.

[0038] Preferably, a housing 9 is arranged on the outside of the suction component. The housing 9 is connected to the suction component through the assembly brackets 10, and its size is larger than the overall size of the suction component.

[0039] The assembly brackets 10 are used to detachably install the housing 9 on the suction component. The arrangement of the housing 9 not only makes the structure of the suction component more stable, but also provides additional protection to prevent operators from contacting the high-temperature outer wall, improving the safety of the device.

[0040] Preferably, a suction baffle 9-1 is arranged on the housing 9. The suction baffle 9-1 is located at the gap formed between the first suction air duct 3 and the second suction air duct 4 after the housing 9 is installed on the suction component. The suction baffle 9-1 arranged on the housing 9 prevents the overflow of hot air, reduces unnecessary air flow interference, increases the efficiency of hot air recovery, and improves the stability and efficiency of the device operation.

[0041] Preferably, the power unit 1 adopts an explosion-proof variable-frequency fan.

[0042] The power unit 1 adopting an explosion-proof variable-frequency fan can flexibly adjust the wind speed according to actual needs to achieve precise air flow control. At the same time, the explosion-proof design improves the overall safety and reliability of the device.

[0043] Preferably, the air suction component, the transition straight pipe 2, and the power unit 1 are all wrapped with heat insulation cotton, and sealing flanges are provided at the interfaces.

[0044] Wrapping each component with heat insulation cotton helps to improve the heat preservation effect of the device, reduce heat dissipation, and at the same time can effectively reduce the surface temperature of the air suction component and the transition straight pipe 2, increasing the safety of the staff during operation. Setting sealing flanges at the interfaces of each unit can prevent hot air leakage, effectively reduce heat energy loss, and improve the airtightness of the system.

[0045] Preferably, the power unit 1 has a suction side and a discharge side. Its suction side is connected to the transition straight pipe 2, and its discharge side is connected to a reserved air duct 11, and the reserved air duct 11 can be connected to an air transportation and heating control device.

[0046] The working principle of the present utility model: Through the extraction of the power unit 1, a negative pressure is formed in the air suction component and the transition straight pipe 2. The air suction component uses the air suction ports 7 on the first air suction pipe 3 and the second air suction pipe 4 to suck the hot air overflowing outside the oven. The sucked hot air flows through the connecting air duct 5 to the confluence air duct 6, and then is output from the discharge side of the power unit 1 through the transition straight pipe 2 to the air transportation and heating control device or other heating devices to complete the hot air recovery process.

[0047] The above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

[0048] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0049] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it cannot be understood as a limitation to the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A hot air recovery device, characterized in that Comprising: An air suction component, a transition straight pipe (2) and a power unit (1), the air suction component is arranged outside both ends of the oven and is connected to the power unit (1) through the transition straight pipe (2); The air suction component includes a first air suction pipe (3), a second air suction pipe (4), a connecting air duct (5) and a confluence air duct (6); A plurality of air suction openings (7) are arranged on the first air suction pipe (3) and the second air suction pipe (4), and the first air suction pipe (3) and the second air suction pipe (4) are used to suck the overflowing hot air from the outside of the oven through the air suction openings (7); Both ends of one side of the connecting air duct (5) are respectively connected to the first air suction pipe (3) and the second air suction pipe (4), and the other side is connected to the confluence air duct (6), and the connecting air duct (5) is used to guide the hot air into the confluence air duct (6).

2. The hot air recovery device according to claim 1, wherein The first air suction pipe (3) and the second air suction pipe (4) are arranged oppositely, and a support part (8) is arranged between the first air suction pipe (3) and the second air suction pipe (4).

3. The hot air recovery device according to claim 2, wherein Assembly brackets (10) are respectively arranged on one side of the first air suction pipe (3) and the second air suction pipe (4).

4. The hot air recovery device according to claim 3, characterized in that, An outer shell (9) is arranged outside the air suction component, and the outer shell (9) is connected to the air suction component through the assembly bracket (10), and its size is larger than the overall size of the air suction component.

5. The hot air recovery device according to claim 4, characterized in that, An air suction baffle (9-1) is arranged on the outer shell (9), a gap is formed by the opposite arrangement of the first air suction pipe (3) and the second air suction pipe (4), and the air suction baffle (9-1) is located at the gap position.

6. The hot air recovery device according to claim 1, wherein The power unit (1) adopts an explosion-proof variable-frequency fan.

7. The hot air recovery device according to claim 1, characterized in that The air suction component, the transition straight pipe (2) and the power unit (1) are all wrapped with heat-insulating cotton, and a sealing flange is arranged at the interface.

8. The hot air recovery device according to claim 1, wherein The power unit (1) has a suction side and a discharge side, its suction side is connected to the transition straight pipe (2), and a reserved air duct (11) is arranged on its discharge side, and the reserved air duct (11) can be connected to an air transportation heating control device.

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