Airflow circulating device for photovoltaic drying tank

Abstract

This invention discloses an airflow circulation device for a photovoltaic drying tank, comprising a frame; a tank is disposed within the frame; at least two air filters are disposed within the frame and located on one side below the bottom of the tank; a fan is disposed within the frame and located at the rear of the tank; a first pipe from the outlet of the air filters connects to the bottom of the tank, and a second pipe connects to the air inlet of the fan; a heater is disposed outside the frame and connects to the air outlet of the fan, and the hot air outlet of the heater connects to the side wall of the tank through a damper regulating component; an exhaust pipe is disposed on the rear wall of the tank and connects to the inlet of the exhaust wall of the unit; and a damper is disposed at the top of the frame and connects to the outlet of the exhaust wall of the unit. This invention places the air filters at the bottom and provides dual outlets, shortening the air supply path and reducing air intake resistance; it independently sets up the air supply, air supply, and exhaust, avoiding cross-flow interference and pipe detours; and it centrally exhausts air through the exhaust pipe and damper, resulting in high exhaust efficiency.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic drying equipment technology, and in particular to an airflow circulation device for a photovoltaic drying tank. Background Technology

[0002] In the field of photovoltaic drying, a surface exhaust system is required to provide clean air to the photovoltaic drying tank, ensuring uniform temperature within the tank and expelling waste gas generated during drying to guarantee the stability of the drying process and product quality. The surface exhaust system mainly consists of the drying tank body, filter box, air valve, air filter, air inlet duct, and fan. The fan is installed at the rear of the drying tank body, the filter box is located at the front of the drying tank body, and the air filter is installed on top of the drying tank body to replenish the air inside the tank.

[0003] During operation, outside air first enters the front filter box, and after filtration, it enters the tank through a long air intake duct. At the same time, the air filter on the top of the machine replenishes the tank with air from top to bottom. The humid and hot air generated in the tank is then collected through the duct and discharged to the rear fan.

[0004] However, in practice, some problems were found with this airflow circulation: First, because the filter box is located at the front of the tank and the fan is located at the rear, air needs to be transported a long distance from the front to the tank, resulting in high wind resistance and significant air volume loss along the way; Second, the air filter is placed at the top of the machine, so when replenishing air, it needs to be connected to the tank from top to bottom, increasing the pipe length and airflow resistance; At the same time, the pipes between the air intake, replenishment, and exhaust in the tank are circuitous and too long, resulting in low gas exchange efficiency in the tank and the inability to quickly expel hot air, thus making the overall ventilation efficiency low and unable to meet actual needs. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art by providing an airflow circulation device for a photovoltaic drying tank, which has a simple structure, short airflow path, low wind resistance and high extraction efficiency.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: an airflow circulation device for a photovoltaic drying tank, comprising: Frame; The groove is disposed within the frame. An air filter, at least two of the air filters are disposed within the frame and located on one side below the bottom of the tank; A fan is installed inside the frame and located at the rear end of the tank, and the fan and the air filter are arranged opposite each other on both sides of the bottom of the tank; wherein, the first pipe of the air filter outlet is connected to the bottom of the tank, and the second pipe is connected to the air inlet of the fan; A heater is disposed outside the frame and communicates with the air outlet of the fan. The hot air outlet of the heater is communicated with the side wall of the tank through an air valve regulating assembly. An exhaust duct is installed on the rear wall of the tank and connected to the inlet of the exhaust wall of the machine body, for discharging exhaust gas from the tank. An air valve is installed at the top of the frame, and the air valve is connected to the outlet of the exhaust wall of the machine body located inside the frame.

[0007] Optionally, there are three fans, which are connected in parallel, and each fan outlet is independently equipped with the heater and the air valve regulating assembly.

[0008] Optionally, the hot air outlets of the multiple heaters converge into the air collection pipe. The air collection pipe is provided with multiple air inlet pipes arranged perpendicularly to the tank body along its length. The multiple air inlet pipes are respectively connected to the upper and lower air blowing mechanisms inside the tank body, and are used to deliver hot air to the upper and lower areas inside the tank body respectively.

[0009] Optionally, the damper adjustment assembly is a manual damper.

[0010] Optionally, the first pipeline is connected to the bottom of the tank via a pagoda connector.

[0011] Optionally, the first pipe is vertically connected to the bottom of the tank; the second pipe is horizontally connected to the air inlet of the fan.

[0012] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: The airflow circulation device for the photovoltaic drying tank of the present invention, by setting the air filter below the bottom of the tank and setting the first pipeline directly vertically connected to the bottom of the tank, allows a portion of the ambient temperature air to be blown directly to replenish the air through a very short path, resulting in low resistance; at the same time, the second pipeline is horizontally connected to the fan, reducing the distance of the pipeline connection, reducing the air intake resistance, reducing air volume loss, and improving the overall ventilation efficiency.

[0013] Secondly, the air filter directly blows air to the bottom of the tank through the first pipeline for makeup air; hot air is then delivered into the tank through the second pipeline, fan, heater, air collection pipe, and air inlet pipe, and finally exhausted through the exhaust pipe, the exhaust wall of the unit, and the air valve. These three paths operate independently, avoiding airflow chaos and improving gas exchange efficiency. At the same time, all exhaust gas is discharged through the exhaust pipe, further improving exhaust efficiency and exhaust gas discharge capacity. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a front view of the airflow circulation device for a photovoltaic drying tank according to an exemplary embodiment of this disclosure; Figure 2 for Figure 1 A partial sectional view of AA; Figure 3 This is a partial schematic diagram of an exemplary embodiment of the present disclosure, omitting the frame and the air valve; Figure 4 for Figure 3 Angle and height diagram; The components include: frame 1, tank 2, air filter 3, fan 4, first pipeline 30, second pipeline 31, heater 5, air valve adjustment assembly 6, air valve 7, exhaust wall of the machine body 8, exhaust pipeline 9, air collection pipe 50, and air inlet pipe 51. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0016] For ease of understanding, the specific processes in the embodiments of this application are described below. Please refer to [link / reference]. Figure 1 An airflow circulation device for a photovoltaic drying tank according to an embodiment of this application includes a frame 1 and a tank 2 disposed within the frame 1. The tank 2 provides a controllable drying chamber for the photovoltaic silicon wafers placed therein.

[0017] See Figures 1 to 3 Multiple air filters 3 are arranged in parallel inside the frame 1, located on the lower left side of the trough 2. In this embodiment, three air filters 3 are preferred. Using three air filters 3 can increase the filtration area and improve the filtration efficiency, allowing more air to be delivered and improving the air supply efficiency. The air filters 3 are used to introduce external air and filter it to remove impurities, thereby inputting clean air to the rear end.

[0018] In this embodiment, each air filter 3 has a gas outlet branching into a first pipe 30 and a second pipe 31. The upper end of the first pipe 30 communicates with the bottom of the tank 2, and the first pipe 30 is perpendicular to the tank 2. This allows a portion of the gas flowing from the air filter 3 to directly enter the tank 2 through a short distance, forming a direct airflow path for replenishment. This replenishment path is extremely short, generating almost no resistance, thus reducing airflow loss. The ambient temperature gas delivered through the first pipe is used to regulate the temperature inside the tank 2, promoting airflow exchange and improving the drying effect. The first pipe 30 is connected to the bottom of the tank 2 via a pagoda connector. The pagoda connector requires no welding, reducing on-site installation time and facilitating rapid assembly.

[0019] The second pipe 31 is arranged in a straight line below the tank 2 and connects to the air inlet of the fan 4 located at the right end of the tank 2. In this embodiment, one air filter 3 corresponds to one fan 4, and a total of three corresponding fans 4 are provided. Through the above one-to-one correspondence configuration, it is ensured that the air outlet of each air filter 3 can independently enter the corresponding fan, avoiding mutual interference of airflow.

[0020] See Figures 2 to 4 The fan 4 is installed inside the frame 1 and located at the right end of the trough 2, corresponding one-to-one with the air filter 3 located on the left. This structure allows the second pipe 31 to be connected almost horizontally, eliminating the need for a long vertical descent, further shortening the pipe length, reducing air intake resistance, and improving extraction efficiency. In summary, this structure avoids excessively long air intake pipes and shortens the air supply path, thus improving overall extraction efficiency.

[0021] See Figures 1 to 3 The heater 5 is installed outside the frame 1, and the air outlet of the fan 4 is connected to the heater 5. In this way, the fan 4 can send the gas introduced from the air filter 3 to the heater 5 for heating, and then send the hot air out from the hot air outlet of the heater 5. By placing the heater 5 outside the frame 1, the heat emitted by the heater 5 can be prevented from causing thermal effects on other components inside the tank 2, and maintenance is also facilitated.

[0022] See Figures 2 to 4 The hot air outlet of the heater 5 is connected to the side of the tank 2 through the air valve regulating component 6, so that the heated air can be sent into the tank 2 to dry the photovoltaic silicon wafer.

[0023] In this embodiment, the hot air outlets of multiple heaters 5 converge the hot air into a collecting pipe 50, which is located on one side of the fan 4 and vertically positioned below the tank 2. The collecting pipe 50 is equipped with multiple inlet pipes 51 perpendicularly arranged to it, namely a first inlet pipe and a second inlet pipe, with the first inlet pipe being longer than the second inlet pipe. The first and second inlet pipes are respectively connected to the upper and lower blowing mechanisms within the tank 2, thereby independently delivering the hot air from the heaters to the upper and lower areas within the tank 2. This structure ensures that the pressure at the fan outlet is uniformly mixed before being delivered into the tank 2. The upper and lower blowing mechanisms employ conventional blowing pipe structures, which are common knowledge in the field and will not be described in detail here.

[0024] Each air inlet duct 51 is equipped with an air valve regulating component 6, which allows for independent adjustment of the hot air flow entering the upper and lower blower mechanisms. This enables independent and precise temperature control of the upper and lower areas within the drying chamber, avoiding drying differences caused by uneven airflow and improving drying uniformity. In this embodiment, the air valve regulating component is preferably a manual air valve for convenient manual adjustment of the airflow.

[0025] In this embodiment, the air valve 7 is located at the top of the frame 1 and is connected to the factory's main exhaust system. The lower end of the air valve 7 communicates with the exhaust wall 8 inside the frame 1, and the exhaust wall 8 communicates with the exhaust duct 9 located on the rear wall of the tank 2, used to discharge exhaust gas from the tank 2. The exhaust duct 9 is vertically installed on the rear wall of the tank 2 and extends upwards to the top of the tank 2. Through this structure, the air valve 7 can manually or automatically adjust the exhaust duct 9 to control the exhaust flow rate, thereby precisely regulating the negative pressure and temperature within the tank 2.

[0026] During operation, the hot and humid exhaust gas generated after drying in tank 2 is sent out through exhaust duct 9, and then discharged outwards through the exhaust wall 8 and the air valve 7 in sequence. Through this structure, since exhaust duct 9 is located on the rear wall of tank 2, the exhaust gas does not need to travel a long distance forward or upward within tank 2, shortening the exhaust path and reducing exhaust resistance. All exhaust gas is discharged centrally through exhaust duct 9, avoiding turbulence that may occur with multi-point exhaust, improving overall exhaust efficiency, and maintaining a stable environment inside tank 2.

[0027] In addition, in this embodiment, the incoming air is directly blown in by the first pipe 30 for supplemental air, and the hot air is delivered into the tank 2 through the second pipe 31, the fan 4, the heater 5, the air collection pipe 50 and the air inlet pipe 51; the exhaust gas enters the exhaust wall 8 of the machine body through the exhaust pipe 9 and is discharged through the air valve 7. These three paths are independent of each other to avoid cross-interference of airflow. At the same time, the internal pipes are all connected vertically or horizontally, which adopts the shortest path design, shortens the exhaust path, reduces exhaust resistance, improves exhaust efficiency and drying quality, and meets the actual use requirements.

[0028] In summary, compared with the existing technology, this airflow circulation device effectively solves the problems of excessively long air inlet pipes and detours in the makeup air path by placing the air filter 3 at the bottom and connecting the fan and air filter with a horizontal short pipe, and centralizing the exhaust pipe on the rear wall of the tank for exhaust, and controlling the discharge volume through the air valve, thereby improving the overall exhaust efficiency.

[0029] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An airflow circulation device for a photovoltaic drying tank, characterized in that, include: Frame; The groove is disposed within the frame. An air filter, at least two of the air filters are disposed within the frame and located on one side below the bottom of the tank; A fan is installed inside the frame and located at the rear end of the tank, and the fan and the air filter are arranged opposite each other on both sides of the bottom of the tank; wherein, the first pipe of the air filter outlet is connected to the bottom of the tank, and the second pipe is connected to the air inlet of the fan; A heater is disposed outside the frame and communicates with the air outlet of the fan. The hot air outlet of the heater is communicated with the side wall of the tank through an air valve regulating assembly. An exhaust duct is installed on the rear wall of the tank and connected to the inlet of the exhaust wall of the machine body, for discharging exhaust gas from the tank. An air valve is installed at the top of the frame, and the air valve is connected to the outlet of the exhaust wall of the machine body located inside the frame.

2. The airflow circulation device for the photovoltaic drying tank as described in claim 1, characterized in that: There are three fans, which are connected in parallel. Each fan outlet is independently equipped with a heater and a damper regulating assembly.

3. The airflow circulation device for the photovoltaic drying tank as described in claim 2, characterized in that: The hot air outlets of the multiple heaters converge into the air collection pipe. The air collection pipe has multiple air inlet pipes arranged perpendicularly to the tank body along its length. The multiple air inlet pipes are respectively connected to the upper and lower air blowing mechanisms inside the tank body, and are used to deliver hot air to the upper and lower areas inside the tank body respectively.

4. The airflow circulation device for the photovoltaic drying tank as described in claim 1, characterized in that: The air valve adjustment component is a manual air valve.

5. The airflow circulation device for a photovoltaic drying tank as described in claim 1, characterized in that: The first pipeline is connected to the bottom of the tank via a pagoda connector.

6. The airflow circulation device for a photovoltaic drying tank as described in claim 1, characterized in that: The first pipe is vertically connected to the bottom of the tank; the second pipe is horizontally connected to the air inlet of the fan.

Images