Annular airtight multi-compartment photovoltaic glass plate annular drying line

Abstract

The annular airtight multi-compartment photovoltaic glass plate annular drying line comprises a feeding and discharging airtight chamber, a drying cavity and a material frame, a photovoltaic glass plate to be dried placed in the material frame is conveyed to the drying cavity from a feeding area of the feeding and discharging airtight chamber, and the photovoltaic glass plate to be dried is conveyed to a discharging area of the feeding and discharging airtight chamber after being dried through the drying cavity; the drying cavity is composed of a plurality of independent cavities and a circulating air duct surrounding the independent cavities, and the drying cavity is in a U shape. According to the drying line, the stacking and drying operation of the heavy photovoltaic glass plates can be completed under the condition of unmanned operation, the situation that the photovoltaic glass plates are manually carried and pushed in a highly toxic environment to complete technological operation is avoided, harm to the bodies of personnel is avoided, meanwhile, the rate of unqualified products caused by damage of the photovoltaic glass plates is greatly reduced, and the production efficiency is improved. The product has a certain internal rhythm adjusting function, and is convenient to adapt to external equipment with various different production rhythms for butt joint and collaboration.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic glass production equipment, and in particular to an annular airtight multi-compartment photovoltaic glass plate annular drying line. Background Art

[0002] Photovoltaic glass, as an important component of solar cell modules, is in great demand in today's new energy production and manufacturing field. Its production process requires drying. Traditional drying lines are mostly linear or tunnel-type, which have the following disadvantages:

[0003] 1. Poor airtightness: Traditional drying lines are mostly open or semi-enclosed, and the heating method is mostly baking-type, which results in serious heat loss, high energy consumption, and it is difficult to control the temperature at various locations in the drying line to be roughly the same. In addition, non-enclosed drying lines are difficult to control the drying environment, and impurities invading the drying process will greatly affect product quality.

[0004] 2. The beat cannot be adjusted: Traditional drying lines lack a buffering function and cannot flexibly adjust the drying time according to the production rhythm. Loading materials too quickly or taking materials out too slowly at the external input end will cause material accumulation and then cause the drying line to stop, affecting production efficiency.

[0005] 3. Difficulty in transportation: Photovoltaic glass panels are large in size, heavy in weight, and fragile. Traditional transportation methods can easily cause damage, and the degree of automation is low, resulting in high labor costs.

[0006] 4. Safety Hazards: During the drying process, N-methylformamide (NMF) is applied to the photovoltaic glass panels. This compound easily vaporizes in the high temperatures inside the drying chamber, causing significant harm to workers if inhaled. The compound is highly flammable when exposed to open flames and high temperatures and reacts violently with oxidants. High temperatures increase the internal pressure of the container, posing a risk of cracking and explosion. Traditional drying lines lack effective sealing measures, posing a safety hazard. Summary of the Invention

[0007] In order to achieve the above-mentioned purpose, the present application proposes an annular airtight multi-compartment photovoltaic glass panel annular drying line, including: a loading and unloading airtight chamber, a drying cavity and a material rack. The photovoltaic glass panels to be dried placed in the material rack are transported from the loading area of the loading and unloading airtight chamber to the drying cavity. After being dried in the drying cavity, they are transferred to the unloading area of the loading and unloading airtight chamber; the drying cavity is composed of multiple independent separate cavities and a circulating air duct surrounding the separate cavities, and the drying cavity is "U-shaped".

[0008] Through the above technical solutions, the facilities are all highly airtight, which can prevent toxic gases from escaping from the inside after closing the entrances and exits, and at the same time has an air circulation function to properly remove exhaust gas, and the loading and unloading airtight chamber wraps the drying cavity to form a complete annular airtight line; photovoltaic glass panels are manually or mechanically fed into the loading port of the loading and unloading airtight chamber by piece, and the photovoltaic glass panels are stacked in the loading and unloading airtight chamber and sent into the drying cavity in the form of a rack to complete the drying operation. After drying, the rack enters the loading and unloading airtight chamber again for destacking, and finally is output by piece from the unloading port and taken away manually or mechanically; the airtight loading system and the airtight unloading system in the loading and unloading airtight chamber can independently complete the sorting and stacking (destacking) of photovoltaic glass panels without human operation or assistance, avoiding physical damage caused by manual entry into the toxic gas environment.

[0009] Specifically, the loading and unloading airtight chamber includes: an airtight loading system, an airtight unloading system, an internal circulation track in the palletizing, an airtight loading conveyor line cabinet and an airtight unloading conveyor line cabinet; the airtight loading system and the airtight unloading system are placed in parallel in the loading and unloading airtight chamber; the airtight loading system and the airtight unloading system are arranged in parallel and are connected to the airtight loading conveyor line cabinet and the airtight unloading conveyor line cabinet respectively, and the outlet of the airtight loading system and the inlet of the airtight unloading system are respectively connected to the starting point and end point of the drying chamber; the two ends of the internal circulation track in the palletizing are respectively connected to the airtight loading system and the airtight unloading system; one end of the airtight loading conveyor line cabinet is connected to the airtight loading system, and the other end extends out of the loading and unloading airtight chamber; one end of the airtight unloading conveyor line cabinet is connected to the airtight unloading system, and the other end extends out of the loading and unloading airtight chamber.

[0010] Specifically, the airtight feeding system includes: a feeding buffer device and a feeding palletizing device; the inlet of the feeding buffer device is connected to the airtight feeding conveyor line cabinet, and the outlet is connected to the inlet of the feeding palletizing device; the outlet of the feeding palletizing device is connected to the inlet of the drying chamber.

[0011] Specifically, the airtight unloading system includes: unloading buffer equipment and unloading destacking equipment; the inlet of the unloading destacking equipment is connected to the outlet of the drying chamber, and the outlet is connected to the inlet of the unloading buffer equipment; the outlet of the unloading buffer equipment is connected to the airtight unloading conveyor line cabinet.

[0012] Specifically, the airtight loading conveyor line cabinet and the airtight unloading conveyor line cabinet both include: a double-pass airtight cabinet, a conveyor line inside the cabinet, a single-action door, an exhaust pipe and an adjustment bracket; the adjustment bracket is configured to support the double-pass airtight cabinet, and the height of the adjustment bracket is adjustable; single-action doors are provided at both ends of the double-pass airtight cabinet, and an exhaust pipe is provided on the double-pass airtight cabinet; the conveyor line inside the cabinet is at the same horizontal height as the inlet of the airtight loading system or the outlet of the airtight unloading system.

[0013] Specifically, the drying chamber includes: an airtight chamber, a conveyor line track and an airtight door; the airtight chamber is arranged along the conveyor line track, and a group of airtight doors are provided at the entrance and exit of the airtight chamber, and the conveyor line track passes through multiple airtight chambers and forms a closed loop with the palletizing internal circulation track; the conveyor line track is a "U"-shaped track.

[0014] Specifically, the airtight chamber includes: an adjustment chamber, a drying chamber, and a turning chamber; the adjustment chamber, the drying chamber, and the turning chamber form a "U"-shaped structure that is the same as the conveyor line track; wherein the adjustment chamber is arranged at the inlet and outlet of the conveyor line track; the drying chamber is arranged along the straight part of the conveyor line track, and the adjacent drying chambers are separated by airtight doors; the turning chamber is arranged at the turning point of the conveyor line track to realize the turning of the photovoltaic glass panels to be dried.

[0015] Specifically, the airtight chamber also includes: an air supply duct and an air outlet duct; the semi-enclosed space formed by the air supply duct and the air outlet duct wraps the conveyor line track, and gas channels are provided between the air supply duct and the air outlet duct and the drying chamber, so that warm air is input into the drying chamber from the air supply duct to complete the drying operation, and is blown out from the air outlet duct to complete the cycle.

[0016] Specifically, the conveyor line track includes: a turning conveyor line, an adjustment conveyor line and a conveyor line to be dried; the adjustment conveyor line is placed in the adjustment room, and the speed of the adjustment conveyor line is adjustable; the conveyor line to be dried is placed in the drying room; the turning conveyor line is set at the turning point of the conveyor line track to achieve turning.

[0017] The above technical solution realizes that the speed of the conveyor line can be adjusted. The adjustment conveyor line on the loading port side is used to adjust the material racks with different distances from each other due to the difference in loading speed to maintain the same distance and enter the conveyor line to be dried; the adjustment conveyor line on the unloading port side is used to separate individual material racks into the unloading equipment to complete the unloading process.

[0018] Compared with the prior art, the present invention is beneficial in that:

[0019] (1) The stacking and drying of heavy photovoltaic glass panels can be completed without human intervention, thus avoiding manual handling and pushing of photovoltaic glass panels in a highly toxic environment to complete the process and avoiding physical harm to personnel;

[0020] (2) Significantly reduced the defective product rate caused by damage to photovoltaic glass panels;

[0021] (3) The product has a certain internal rhythm adjustment function, which is convenient for docking and coordination with external equipment with different production rhythms. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and, together with the description, serve to explain the principles of the present application. Other embodiments and many of the expected advantages of the embodiments will be readily apparent as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale with respect to each other. Like reference numerals designate corresponding similar parts.

[0023] Figure 1 This is a schematic diagram of the overall structure of an annular airtight multi-compartment photovoltaic glass panel annular drying line according to an embodiment of the present application;

[0024] Figure 2 This is a structural schematic diagram of a loading and unloading airtight chamber of an annular airtight multi-compartment photovoltaic glass panel annular drying line according to an embodiment of the present application;

[0025] Figure 3 This is a structural schematic diagram of an airtight feeding system of an annular airtight multi-compartment photovoltaic glass panel annular drying line according to an embodiment of the present application;

[0026] Figure 4 This is a structural schematic diagram of an airtight unloading system for an annular airtight multi-compartment photovoltaic glass panel annular drying line according to an embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of the position of the inner circulation track of the stacking of an annular airtight multi-compartment photovoltaic glass panel annular drying line according to an embodiment of the present application;

[0028] Figure 6 This is a structural schematic diagram of an airtight loading conveyor line cabinet and an airtight unloading conveyor line cabinet of an annular airtight multi-compartment photovoltaic glass panel annular drying line according to an embodiment of the present application;

[0029] Figure 7 This is a schematic structural diagram of a drying chamber of an annular airtight multi-compartment photovoltaic glass panel annular drying line according to an embodiment of the present application;

[0030] Figure 8 This is a schematic structural diagram of an airtight chamber of an annular airtight multi-compartment photovoltaic glass panel annular drying line according to an embodiment of the present application;

[0031] Figure 9 This is a structural schematic diagram of a conveyor line track of an annular airtight multi-compartment photovoltaic glass panel annular drying line according to an embodiment of the present application.

[0032] The meaning of the numbers in the figure: 1. Loading and unloading airtight chamber; 2. Drying chamber; 3. Material rack; 1.1. Airtight loading system; 1.2. Airtight unloading system; 1.3. Palletizing internal circulation track; 1.4. Airtight loading conveyor line cabinet; 1.5. Airtight unloading conveyor line cabinet; 1.1.1. Loading buffer equipment; 1.1.2. Loading palletizing equipment; 1.2.1. Unloading buffer equipment; 1.2.2. Unloading and depalletizing equipment; 1.4.1. Double-pass airtight cabinet; 1 .4.2. Conveyor line inside the cabinet; 1.4.3. Single-action door; 1.4.4. Exhaust pipe; 1.4.5. Adjustment bracket; 2.1. Airtight chamber; 2.2. Conveyor line track; 2.3. Airtight door; 2.1.1. Air supply duct; 2.1.2. Air outlet duct; 2.1.3. Adjustment chamber; 2.1.4. Drying chamber; 2.1.5. Turning chamber; 2.2.1. Adjustment conveyor line; 2.2.2. Conveyor line to be dried; 2.2.3. Turning conveyor line. DETAILED DESCRIPTION

[0033] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are shown by illustrative specific embodiments in which the present application can be practiced. In this regard, directional terms, such as "top", "bottom", "left", "right", "up", "down", etc., are used with reference to the orientation of the figures being described. Because the components of the embodiments can be positioned in several different orientations, directional terms are used for illustrative purposes and are in no way limiting. It should be understood that other embodiments can be utilized or logical changes can be made without departing from the scope of the present application. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present application is defined by the appended claims.

[0034] like Figures 1 to 7 As shown (it should be noted that the airtight loading conveyor line cabinet and the airtight unloading conveyor line cabinet have the same structure, so they are not illustrated separately), a ring-shaped airtight multi-compartment photovoltaic glass panel ring drying line includes: an airtight loading and unloading chamber 1, a drying cavity 2 and a material rack 3. The photovoltaic glass panels to be dried placed in the material rack 3 are transported from the loading area of the loading and unloading airtight chamber 2.11 to the drying cavity 2. After being dried in the drying cavity 2, they are transferred to the unloading area of the loading and unloading airtight chamber 2.11; the drying cavity 2 is composed of a plurality of independent separate cavities and a circulating air duct surrounding the separate cavities, and the drying cavity 2 is "U-shaped".

[0035] The loading and unloading airtight chamber 1 includes: an airtight loading system 1.1, an airtight unloading system 1.2, a palletizing inner circulation track 1.3, an airtight loading conveyor line cabinet 1.4 and an airtight unloading conveyor line cabinet 1.5; the airtight loading system 1.1 and the airtight unloading system 1.2 are placed in parallel in the loading and unloading airtight chamber 1; the airtight loading system 1.1 and the airtight unloading system 1.2 are arranged in parallel and are connected to the airtight loading conveyor line cabinet 1.4 and the airtight unloading conveyor line cabinet 1.5 respectively, and the airtight The outlet of the loading system 1.1 and the inlet of the airtight unloading system 1.2 are connected to the starting point and end point of the drying chamber 2 respectively; the two ends of the palletizing internal circulation track 1.3 are respectively connected to the airtight loading system 1.1 and the airtight unloading system 1.2; one end of the airtight loading conveyor line cabinet 1.4 is connected to the airtight loading system 1.1, and the other end extends out of the loading and unloading airtight chamber 1; one end of the airtight unloading conveyor line cabinet 1.5 is connected to the airtight unloading system 1.2, and the other end extends out of the loading and unloading airtight chamber 1.

[0036] The airtight feeding system 1.1 includes: a feeding buffer device 1.1.1 and a feeding stacking device 1.1.2; the inlet of the feeding buffer device 1.1.1 is connected to the airtight feeding conveyor line cabinet 1.4, and the outlet is connected to the inlet of the feeding stacking device 1.1.2; the outlet of the feeding stacking device 1.1.2 is connected to the inlet of the drying chamber 2.

[0037] The airtight unloading system 1.2 includes: an unloading buffer device 1.2.1 and an unloading and destacking device 1.2.2; the inlet of the unloading and destacking device 1.2.2 is connected to the outlet of the drying chamber 2, and the outlet of the unloading and destacking device 1.2.2 is connected to the inlet of the unloading buffer device 1.2.1; the outlet of the unloading buffer device 1.2.1 is connected to the airtight unloading conveyor line cabinet 1.5.

[0038] Each of the airtight loading and unloading conveyor line cabinets 1.4 and 1.5 comprises a double-pass airtight cabinet 1.4.1, an in-cabinet conveyor line 1.4.2, a single-action door 1.4.3, an exhaust pipe 1.4.4, and an adjustment bracket 1.4.5. The adjustment bracket 1.4.5 is configured to support the double-pass airtight cabinet 1.4.1, and the adjustment bracket 1.4.5 is height-adjustable. Single-action doors 1.4.3 are provided at both ends of the double-pass airtight cabinet 1.4.1, and an exhaust pipe 1.4.4 is provided on the double-pass airtight cabinet 1.4.1. The in-cabinet conveyor line 1.4.2 is at the same level as the inlet of the airtight loading system 1.1 or the outlet of the airtight unloading system 1.2.

[0039] The drying chamber 2 includes: an airtight chamber 2.1, a conveyor line track 2.2 and an airtight door 2.3; the airtight chamber 2.1 is arranged along the conveyor line track 2.2, and a set of airtight doors 2.3 are provided at the entrance and exit of the airtight chamber 2.1. The conveyor line track 2.2 passes through multiple airtight chambers 2.1 and forms a closed loop with the palletizing internal circulation track 1.3; the conveyor line track 2.2 is a "U"-shaped track.

[0040] The airtight chamber 2.1 includes: an adjustment chamber 2.1.3, a drying chamber 2.1.4, and a turning chamber 2.1.5; the adjustment chamber 2.1.3, the drying chamber 2.1.4, and the turning chamber 2.1.5 form a "U"-shaped structure identical to the conveyor line track 2.2; the adjustment chamber 2.1.3 is located at the inlet and outlet of the conveyor line track 2.2; the drying chamber 2.1.4 is located along the straight portion of the conveyor line track 2.2, and the adjacent drying chambers 2.1.4 are separated by airtight doors 2.3; the turning chamber 2.1.5 is located at the turning point of the conveyor line track 2.2 to enable the photovoltaic glass panels to be dried to be turned.

[0041] The airtight chamber 2.1 also includes: an air supply duct 2.1.1 and an air outlet duct 2.1.2; the semi-enclosed space formed by the air supply duct 2.1.1 and the air outlet duct 2.1.2 wraps the conveyor line track 2.2, and gas channels are provided between the air supply duct 2.1.1 and the air supply duct 2.1.2 and the drying chamber 2.1.4, so that warm air is input from the air supply duct 2.1.1 into the drying chamber 2.1.4 to complete the drying operation, and is blown out from the air supply duct 2.1.2 to complete the cycle.

[0042] The conveyor track 2.2 includes a turning conveyor line, an adjustment conveyor line 2.2.1, and a conveyor line for drying 2.2.2. The adjustment conveyor line 2.2.1 is placed in the adjustment chamber 2.1.3, and its speed is adjustable. The conveyor line for drying 2.2.2 is placed in the drying chamber 2.1.4. The turning conveyor line is set at the turning point of the conveyor track 2.2 to achieve turning.

[0043] In a specific embodiment, the drying chamber 2 is approximately a U-shaped track line in a top view, with the starting point and the end point located at the same position and connected to the loading and unloading airtight chamber 1. The combination of the loading and unloading airtight chamber 1 and the drying chamber 2 constitutes a complete circular circulation line and has very good airtightness. In this equipment, the external material rack 3 moves clockwise along the circular circulation line.

[0044] The loading and unloading airtight chamber 1 includes an airtight loading system 1.1, an airtight unloading system 1.2, a palletizing internal circulation track 1.3 and an airtight loading and unloading conveyor line track. The airtight loading system 1.1 and the airtight unloading system 1.2 are placed side by side in the airtight chamber 2.1, and the discharge port of the airtight loading system 1.1 is flush with the feed port of the airtight unloading system 1.2 and faces the same direction; the discharge port of the airtight loading system 1.1 is connected to the entrance of the drying chamber 2, and the feed port of the airtight unloading system 1.2 is connected to the outlet of the drying chamber 2 connected; the palletizing inner circulation track 1.3 connects the discharge port of the airtight loading system 1.1 and the feed port of the airtight unloading system 1.2, and the empty material rack 3 enters the discharge port of the airtight loading system 1.1 along the palletizing inner circulation track 1.3 from the feed port of the airtight unloading system 1.2; the airtight loading and unloading conveyor line rails are respectively installed at the discharge port of the airtight unloading system 1.2 and the feed port of the airtight loading system 1.1, and the two airtight loading and unloading conveyor line rails are placed in parallel and pass through the wall of the airtight chamber 2.1 to be connected to external equipment.

[0045] The airtight loading system 1.1 is a complete set of equipment, including the loading buffer equipment 1.1.1 and the loading palletizing equipment 1.1.2, which are connected in the order of "airtight loading conveyor line track 2.2-loading buffer equipment 1.1.1-loading palletizing equipment 1.1.2-drying chamber 2 entrance", and the connections between the two are maintained at the same horizontal height; in addition, the airtight unloading system 1.2 has the same equipment group as the airtight loading system 1.1, which is connected in the order of "airtight unloading conveyor line track 2.2-unloading and depalletizing equipment 1.2.2-unloading buffer equipment 1.2.1".

[0046] The palletizing inner circulation track 1.3 is a ground conveyor line with pushing capability, with its two ends respectively connected to the side of the discharge port of the airtight unloading system 1.2 and the feed port of the airtight loading system 1.1. The material rack 3 is pushed into the feed port of the airtight loading system 1.1 through the palletizing inner circulation track 1.3.

[0047] The airtight loading and unloading conveyor line includes a double-pass airtight cabinet 1.4.1, an in-cabinet conveyor line 1.4.2, a single-action door 1.4.3, an exhaust pipe 1.4.4 and an adjustment bracket 1.4.5. The double-pass airtight cabinet 1.4.1 is placed above the adjustment bracket 1.4.5. The in-cabinet conveyor line 1.4.2 is fixed inside the double-pass airtight cabinet 1.4.1 with both ends facing the openings of the double-pass airtight cabinet 1.4.1. The upper surface of the in-cabinet conveyor line 1.4.2 is on the same horizontal plane as the outlet end of the airtight unloading system 1.2 or the inlet end of the airtight loading system 1.1. The exhaust pipe 1.4.4 is installed at the fixed part of the double-pass airtight cabinet 1.4.1 and is connected to the external exhaust equipment. The single-action door 1.4.3 is set at the openings at both ends of the double-pass airtight cabinet 1.4.1. When the single-action door 1.4.3 is closed, the double-pass airtight cabinet 1.4.1 is completely airtight.

[0048] The drying chamber 2 includes multiple airtight chambers 2.1, conveyor line tracks 2.2 and multiple airtight doors 2.3. The starting points and end points of the multiple airtight chambers 2.1 are respectively connected to the loading airtight chamber 2.1 and the unloading airtight chamber 2.1. The airtight chamber 2.1 is composed of an adjustment chamber 2.1.3, a drying chamber 2.1.4, a turning chamber 2.1.5, an air supply duct 2.1.1 and an air outlet duct 2.1.2. The starting point and end point of the drying chamber 2 can be respectively provided with multiple adjustment chambers 2.1.3 according to actual conditions. Multiple drying chambers 2.1.4 can be provided on the straight line of the drying chamber 2 according to actual needs. A turning chamber 2.1.5 is provided at the turning point of the cavity. An air supply duct 2.1.1 is provided in the center of the drying chamber 2. An air outlet duct 2.1.2 is provided on both sides of the drying chamber 2, thereby forming a complete air path cycle, and the air path cycle surrounds the drying chamber 2.

[0049] In addition, the conveyor line 2.2.2 to be dried can accommodate a certain number of fully loaded racks 3 to be docked thereon for the drying process according to production needs, and the adjusting conveyor line 2.2.1 can determine the distance between adjacent passing racks 3 and adjust the distance between adjacent racks 3 by controlling its own rotation speed.

[0050] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if these modifications and changes are within the scope of the claims of the present application and their equivalents, the present application is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recited in mutually different dependent claims does not indicate that the combination of these measures cannot be used to advantage. Any reference signs in the claims should not be considered as limiting the scope.

Claims

1. A circular airtight multi-compartment photovoltaic glass panel drying line, comprising: The loading and unloading airtight chamber, the drying cavity and the material rack are characterized in that the photovoltaic glass panels to be dried placed in the material rack are transported from the loading area of the loading and unloading airtight chamber to the drying cavity, and after being dried in the drying cavity, they are transferred to the unloading area of the loading and unloading airtight chamber; the drying cavity is composed of multiple independent separate cavities and circulating air ducts surrounding the separate cavities, and the drying cavity is "U-shaped".

2. The annular airtight multi-compartment photovoltaic glass panel drying line according to claim 1, characterized in that: The loading and unloading airtight chamber includes: an airtight loading system, an airtight unloading system, an internal circulation track in the palletizing, an airtight loading conveyor line cabinet and an airtight unloading conveyor line cabinet; the airtight loading system and the airtight unloading system are placed in parallel in the loading and unloading airtight chamber; the airtight loading system and the airtight unloading system are arranged in parallel and are connected to the airtight loading conveyor line cabinet and the airtight unloading conveyor line cabinet respectively, and the outlet of the airtight loading system and the inlet of the airtight unloading system are respectively connected to the starting point and end point of the drying chamber; the two ends of the internal circulation track in the palletizing are respectively connected to the airtight loading system and the airtight unloading system; one end of the airtight loading conveyor line cabinet is connected to the airtight loading system, and the other end extends out of the loading and unloading airtight chamber; one end of the airtight unloading conveyor line cabinet is connected to the airtight unloading system, and the other end extends out of the loading and unloading airtight chamber.

3. The annular airtight multi-compartment photovoltaic glass panel drying line according to claim 2, characterized in that: The airtight feeding system includes: a feeding buffer device and a feeding palletizing device; the inlet of the feeding buffer device is connected to the airtight feeding conveyor line cabinet, and the outlet is connected to the inlet of the feeding palletizing device; the outlet of the feeding palletizing device is connected to the inlet of the drying chamber.

4. The annular airtight multi-compartment photovoltaic glass plate drying line according to claim 2, characterized in that: The airtight unloading system includes: an unloading buffer device and an unloading and destacking device; the inlet of the unloading and destacking device is connected to the outlet of the drying chamber, and the outlet is connected to the inlet of the unloading buffer device; the outlet of the unloading buffer device is connected to the airtight unloading conveyor line cabinet.

5. The annular airtight multi-compartment photovoltaic glass panel drying line according to claim 2, characterized in that: The airtight loading conveyor line cabinet and the airtight unloading conveyor line cabinet both include: a double-pass airtight cabinet, a conveyor line inside the cabinet, a single-action door, an exhaust pipe and an adjustment bracket; the adjustment bracket is configured to support the double-pass airtight cabinet, and the height of the adjustment bracket is adjustable; the single-action door is provided at both ends of the double-pass airtight cabinet, and the exhaust pipe is provided on the double-pass airtight cabinet; the conveyor line inside the cabinet is at the same horizontal height as the inlet of the airtight loading system or the outlet of the airtight unloading system.

6. The annular airtight multi-compartment photovoltaic glass plate drying line according to claim 2, characterized in that: The drying chamber includes: an airtight chamber, a conveyor line track and an airtight door; the airtight chamber is arranged along the conveyor line track, and a group of airtight doors are respectively provided at the entrance and exit of the airtight chamber, and the conveyor line track passes through multiple airtight chambers and forms a closed loop with the palletizing inner circulation track; the conveyor line track is a "U"-shaped track.

7. The annular airtight multi-compartment photovoltaic glass plate drying line according to claim 6, characterized in that: The airtight chamber includes: an adjustment chamber, a drying chamber, and a turning chamber; the adjustment chamber, the drying chamber and the turning chamber form a "U"-shaped structure identical to the conveyor line track; wherein the adjustment chamber is arranged at the inlet and outlet of the conveyor line track; the drying chamber is arranged along the straight portion of the conveyor line track, and the adjacent drying chambers are separated by the airtight door; the turning chamber is arranged at the turning point of the conveyor line track to realize the turning of the photovoltaic glass panel to be dried.

8. The annular airtight multi-compartment photovoltaic glass plate drying line according to claim 7, characterized in that: The airtight chamber further comprises: an air supply duct and an air outlet duct; the semi-enclosed space formed by the air supply duct and the air outlet duct wraps the conveyor line track, and gas channels are provided between the air supply duct and the air outlet duct and the drying chamber.

9. The annular airtight multi-compartment photovoltaic glass panel drying line according to claim 7, characterized in that: The conveyor line track includes: a turning conveyor line, an adjustment conveyor line and a conveyor line to be dried; the adjustment conveyor line is placed in the adjustment chamber, and the speed of the adjustment conveyor line is adjustable; the conveyor line to be dried is placed in the drying chamber; the turning conveyor line is arranged at the turning point of the conveyor line track to achieve turning.

10. The annular airtight multi-compartment photovoltaic glass plate annular drying line according to claim 1, characterized in that: It also includes a safety protection system, which includes: a gas detection device, a fire detection device, an emergency stop device, a safety grating and an alarm device.

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