A drying module and a circulating air drying system

Abstract

This utility model discloses a drying module and a circulating air drying system, relating to the field of drying equipment technology. It includes two heating mechanisms and an air collection pipe. Each heating mechanism includes a housing with an air inlet and an air outlet. An electric heater and a fan are installed inside the housing. The electric heater heats the air from the air inlet, and the fan discharges the heated air from the air outlet. In use, the air inlet and outlet are connected to a drying chamber. Air from the drying chamber enters the housing and is heated and dried by the electric heater. The fan then discharges the air into the drying chamber through the air collection and outlet pipes, completing the circulating delivery of the drying air. Because an electric heater is used as the heat source, carbon emissions from heating with fossil fuels are avoided.

Description

Technical Field

[0001] This utility model relates to the field of truss equipment technology, specifically a drying module and a circulating air drying system. Background Technology

[0002] A painting workshop (integrated drying and spraying booth) is an industrial equipment that integrates painting and drying functions, and is mainly used for surface treatment of workpieces in the automotive, machinery, and furniture industries.

[0003] Currently, most painting workshops use fossil fuels for heating in their drying rooms, which inevitably generates carbon emissions during the production process. Under the current requirements of peak carbon emissions, reducing carbon emissions has become the primary indicator for production line construction.

[0004] In view of this, there is an urgent need for a drying module and a circulating air drying system to solve the above problems. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model solves the problem using the following technical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A drying module includes: an air collection duct and two heating mechanisms, each heating mechanism including a housing, the housing having an air inlet and an air outlet;

[0008] The housing is equipped with an electric heater and a fan. The electric heater is used to heat the air from the air inlet, and the fan is used to exhaust the heated air from the air outlet of the housing.

[0009] The two ends of the air collection pipe are respectively connected to the air outlets of the two boxes. An air outlet pipe is provided on the air collection pipe, and two first air valves are provided on the air collection pipe, with the two first air valves located on both sides of the air outlet pipe.

[0010] The electric heater divides the inner cavity of the housing into a preheating cavity and an air outlet cavity. The air inlet is connected to the preheating cavity, and the air outlet is connected to the air outlet cavity. The fan is located inside the air outlet cavity.

[0011] The fan is located on the side of the air outlet away from the electric heater.

[0012] The chamber is equipped with a filter that divides the preheating chamber into an air inlet chamber and a heating chamber. The heating chamber is located between the air inlet chamber and the air outlet chamber, and the air inlet is connected to the air inlet chamber.

[0013] The electric heater includes several U-shaped electric heating tubes arranged in a rectangular array.

[0014] There are two air outlet pipes, and the two first air valves are located on the side of the two air outlet pipes that are far apart from each other.

[0015] A second air valve is provided on the air collection pipe, and the second air valve is located between the two air outlet pipes.

[0016] Both the air inlet and the air outlet are located at the bottom of the housing.

[0017] The housing is equipped with doors on one side of the air outlet cavity, the air inlet cavity, and the cavity to be heated.

[0018] A circulating air drying system includes the aforementioned drying module;

[0019] It also includes a drying chamber, which is equipped with two return air pipes. The two return air pipes are respectively connected to the two air inlets, and the two air outlet pipes are connected to the drying chamber.

[0020] The above-described structure of this utility model can achieve the following beneficial effects:

[0021] In operation, the air inlet and outlet are connected to the drying chamber. Air from the drying chamber enters the chamber and is heated and dried by an electric heater. Then, the air is discharged into the drying chamber through the air collection and outlet pipes, completing the circulation of the drying air. Because an electric heater is used as the heat source, carbon emissions from heating with fossil fuels are avoided. Furthermore, two heating mechanisms are provided, allowing for independent control of both mechanisms and their corresponding first air valves. This design enables stepless frequency conversion adjustment of the air supply using a frequency converter. For example, when the temperature inside the drying chamber reaches the target and the supply and return air temperature difference is small, only one heating mechanism needs to be activated. When the supply and return air temperature difference is large, both heating mechanisms can be activated simultaneously, thus reducing energy consumption. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the present application;

[0023] Figure 2 This is a schematic diagram of the electric heater in this application.

[0024] In the diagram: 1. Air collection duct; 2. Box body; 21. Air outlet chamber; 22. Air inlet chamber; 23. Heating chamber; 24. Box door; 3. Electric heater; 31. U-shaped electric heating tube; 4. Fan; 5. Air outlet duct; 6. First air valve; 7. Filter; 8. Second air valve; 9. Drying chamber; 91. Return air duct. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0026] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0027] The following is in conjunction with the appendix Figures 1-2 This application will be described in further detail.

[0028] Example 1, as Figure 1 As shown, a drying module includes: an air collection duct 1 and two heating mechanisms. Each heating mechanism includes a housing 2, on which an air inlet and an air outlet are provided.

[0029] The housing 2 is equipped with an electric heater 3 and a fan 4. The electric heater 3 is used to heat the air from the air inlet, and the fan 4 is used to exhaust the heated air from the air outlet of the housing 2.

[0030] The two ends of the air collection pipe 1 are connected to the air outlets of the two boxes 2 respectively. An air outlet pipe 5 is provided on the air collection pipe 1. Two first air valves 6 are provided on the air collection pipe 1, and the two first air valves 6 are located on both sides of the air outlet pipe 5.

[0031] Based on the above structure, during use, the air inlet and outlet are connected to the drying chamber. Air from the drying chamber enters the housing 2 and is heated and dried by the electric heater 3. Then, the fan 4 operates, and the air is discharged into the drying chamber through the air collection pipe 1 and the air outlet pipe 5, completing the circulation of the drying air. Since the electric heater 3 is used as the heat source, carbon emissions generated by heating with fossil fuels are avoided. Furthermore, two heating mechanisms are provided, and both heating mechanisms can be turned on or off, along with the corresponding first air valve 6. The advantage of this design is that the two heating mechanisms can be controlled separately. Specifically, a frequency converter can be used to adjust the air supply steplessly. For example, when the temperature in the drying chamber reaches the target and the temperature difference between the supply and return air is small, only one heating mechanism needs to be turned on. When the temperature difference between the supply and return air is large, both heating mechanisms can be turned on simultaneously to perform work, thereby reducing energy consumption.

[0032] like Figure 1 As shown, the electric heater 3 divides the inner cavity of the housing 2 into a preheating chamber and an air outlet chamber 21. The air inlet is connected to the preheating chamber, and the air outlet is connected to the air outlet chamber 21. The fan 4 is located in the air outlet chamber 21, and the fan 4 is located on the side of the air outlet away from the electric heater 3. A filter 7 is installed inside the housing 2. The filter 7 divides the preheating chamber into an air inlet chamber 22 and a chamber to be heated 23. The chamber to be heated 23 is located between the air inlet chamber 22 and the air outlet chamber 21. The air inlet is connected to the air inlet chamber 22. In this way, the air in the drying chamber enters the air inlet chamber 22 from the air inlet, and then is filtered by the filter 7 to keep the air clean. Then it is heated by the electric heater 3 and finally enters the air outlet chamber 21 and is discharged from the air outlet. The filter 7 and the electric heater 3 divide the interior of the housing 2 into three independent spaces to ensure that the air entering the housing 2 passes through the filter 7 and the electric heater 3.

[0033] like Figure 1 As shown, there are two air outlet pipes 5. Two first air valves 6 are located on the side of the two air outlet pipes 5 that are far apart from each other. The two air outlet pipes 5 ventilate the drying room and improve the ventilation efficiency. A second air valve 8 is installed on the air collection pipe 1 between the two air outlet pipes 5, so that the two air outlet pipes 5 can ventilate independently.

[0034] Further optimization involves placing both the air inlet and outlet at the bottom of housing 2 for easy connection to the drying chamber. During installation, the drying module can be placed at the top of the drying chamber.

[0035] Further optimizations include, for example Figure 1 As shown, the housing 2 is provided with a door 24 on one side of the air outlet chamber 21, the air inlet chamber 22 and the chamber to be heated 23. In this way, the corresponding door 24 can be opened and closed to facilitate the maintenance and repair of the components inside the housing 2.

[0036] Further optimizations include, for example Figure 2 As shown, the electric heater 3 includes several U-shaped electric heating tubes 31 arranged in a rectangular array. The U-shaped electric heating tubes 31 are energized to perform work and provide a heat source. The U-shaped electric heating tubes 31 have high heating efficiency and can achieve stepless control, which fully guarantees the heat demand of the system without generating excessive loss.

[0037] In addition to the embodiments described above, this application also has the following features: Figure 1 The second embodiment shown is a circulating air drying system, including a drying module as described in Embodiment 1;

[0038] It also includes a drying chamber 9, which is equipped with two return air pipes 91. The two return air pipes 91 are connected to two air inlets respectively, and the two air outlet pipes 5 are connected to the drying chamber 9.

[0039] In summary, during use, the air inlet and outlet are connected to the drying chamber. Air from the drying chamber enters the housing 2 and is heated and dried by the electric heater 3. Then, the fan 4 drives the air out of the drying chamber through the air collection pipe 1 and the air outlet pipe 5, completing the circulation of the drying air. Since the electric heater 3 is used as the heat source, carbon emissions generated by heating with fossil fuels are avoided. Furthermore, two heating mechanisms are provided, which can be turned on and off, and the corresponding first air valve 6 can be opened and closed. The advantage of this design is that the two heating mechanisms can be controlled separately. Specifically, a frequency converter can be used to adjust the air supply steplessly. For example, when the temperature in the drying chamber 9 reaches the target and the temperature difference between the supply and return air is small, only one heating mechanism needs to be turned on. When the temperature difference between the supply and return air is large, both heating mechanisms can be turned on simultaneously to perform work, thereby reducing energy consumption.

[0040] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that can be directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A drying module, characterized in that, include: The air collection pipe (1) and two heating mechanisms, the heating mechanism including a box (2), the box (2) having an air inlet and an air outlet; The housing (2) is equipped with an electric heater (3) and a fan (4). The electric heater (3) is used to heat the air from the air inlet, and the fan (4) is used to discharge the heated air from the air outlet of the housing (2). The two ends of the air collection pipe (1) are respectively connected to the air outlets of the two boxes (2). An air outlet pipe (5) is provided on the air collection pipe (1). Two first air valves (6) are provided on the air collection pipe (1) and the two first air valves (6) are located on both sides of the air outlet pipe (5).

2. A drying module according to claim 1, characterized in that: The electric heater (3) divides the inner cavity of the housing (2) into a preheating cavity and an air outlet cavity (21). The air inlet is connected to the preheating cavity, and the air outlet is connected to the air outlet cavity (21). The fan (4) is located in the air outlet cavity (21).

3. A drying module according to claim 2, characterized in that: The fan (4) is located on the side of the air outlet away from the electric heater (3).

4. A drying module according to claim 2, characterized in that: The housing (2) is equipped with a filter (7), which divides the preheating chamber into an air inlet chamber (22) and a heating chamber (23). The heating chamber (23) is located between the air inlet chamber (22) and the air outlet chamber (21), and the air inlet is connected to the air inlet chamber (22).

5. A drying module according to claim 1, characterized in that: The electric heater (3) includes several U-shaped electric heating tubes (31) arranged in a rectangular array.

6. A drying module according to claim 1, characterized in that: There are two air outlet pipes (5), and the two first air valves (6) are located on the side of the two air outlet pipes (5) that are far apart from each other.

7. A drying module according to claim 6, characterized in that: A second air valve (8) is provided on the air collection pipe (1), and the second air valve (8) is located between the two air outlet pipes (5).

8. A drying module according to claim 1, characterized in that: Both the air inlet and the air outlet are located at the bottom of the housing (2).

9. A drying module according to claim 4, characterized in that: The housing (2) is provided with a door (24) on one side of the air outlet (21), the air inlet (22) and the heating chamber (23).

10. A circulating air drying system, characterized in that: Includes the drying module as described in any one of claims 1-9; It also includes a drying chamber (9), on which two return air pipes (91) are provided. The two return air pipes (91) are respectively connected to the two air inlets, and the two air outlet pipes (5) are connected to the drying chamber (9).

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