Permeable plug device in photovoltaic glass coating production

Abstract

The utility model discloses a permeable plug device in photovoltaic glass coating production. The permeable plug device is located at the two ends of a coating roller and the two ends of a quantifying roller. The permeable plug device comprises a support and a permeable plug, the permeable plug is installed on the side, facing the coating roller and the quantifying roller, of the support, and the permeable plug is attached to the end face of the coating roller and the end face of the quantifying roller to form a liquid groove; a coating liquid collecting mechanism is arranged below the permeable plug; the permeable plug comprises a porous matrix and a filter layer, one side of the filter layer is connected with the porous matrix in an attached manner, and the other side of the filter layer is attached to the end surfaces of the coating roller and the quantifying roller. Through the application of the utility model, the coating liquid in the liquid tank can permeate to the porous substrate from the filter layer and flow back to the coating liquid collecting mechanism; and the filtering layer has good permeability, so that the coating liquid in the liquid tank flows uniformly, the concentration uniformity of the coating liquid in the liquid tank is effectively ensured, and impurities in the coating liquid flow immediately without generating precipitates.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic glass coating production technology, specifically to a permeable plugging device in photovoltaic glass coating production. Background Technology

[0002] Solar photovoltaic cells are used to directly convert sunlight into electrical energy. In a solar photovoltaic cell, photovoltaic glass is located on the outermost layer on its front side, directly exposed to sunlight, and utilizes its extremely high transmittance (>91.5%) to provide light energy to the cell.

[0003] Photovoltaic glass coating can effectively improve the solar transmittance of the glass surface (increase > 2.0%), thereby improving the conversion efficiency and output power of photovoltaic cells. Current photovoltaic glass coating uses a roller coating process, where a coating solution is applied to the photovoltaic glass surface by the reverse rotation of a coating roller. Plugs are installed at both ends of the coating roller and the metering roller to form a liquid tank, into which the coating solution flows and overflows from above the plugs back to the return pipe.

[0004] However, the coating solution in this simple liquid tank has poor fluidity and is prone to impurity precipitation. Utility Model Content

[0005] In order to solve the problems in the prior art, this utility model provides a permeable plugging device for photovoltaic glass coating production that is easy to pick up and put in.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A permeable plug device for photovoltaic glass coating production is provided. The permeable plug device is located at both ends of the coating roller and the metering roller. The permeable plug device includes a support and a permeable plug. The permeable plug is installed on the side of the support facing the coating roller and the metering roller. The permeable plug is in contact with the end face of the coating roller and the metering roller to form a liquid tank. A coating liquid collection mechanism is provided below the permeable plug.

[0008] The permeable plug includes a porous substrate and a filter layer. One side of the filter layer is bonded to the porous substrate, and the other side of the filter layer is bonded to the end face of the coating roller and the metering roller.

[0009] Preferably, the side of the porous substrate facing the coating roller and the metering roller is the front side, and the side facing the support is the back side; both the front and back sides of the porous substrate are planar.

[0010] Preferably, the porous matrix is ​​a square, highly elastic sponge.

[0011] Preferably, the filter layer consists of one or more layers of highly permeable filter cloth, with each layer of highly permeable filter cloth covering the front side of the porous substrate.

[0012] Preferably, the bracket is fixed on the inner wall of the coating machine, and its position corresponds to the end face of the coating roller and the metering roller;

[0013] The top of the support is open to allow the permeable plug to enter the support; the support is open on the side facing the coating roller and metering roller so that the filter layer of the permeable plug can fit against the end face of the coating roller and metering roller.

[0014] Preferably, the bracket includes a mounting plate, which is fixedly connected to the inner wall of the coating machine by bracket bolts; a base plate is fixed to the lower side of the mounting plate, and a permeable plug is placed on the base plate.

[0015] Preferably, side plates are also fixed to the front and rear sides of the mounting plate.

[0016] Preferably, it also includes a liner, which is installed between the mounting plate and the porous substrate.

[0017] Preferably, the base plate is equipped with a downward-facing liquid outlet, which is connected to a return pipe to form a coating liquid collection mechanism.

[0018] Preferably, a return liquid collection tray is provided below the liquid outlet, and the return liquid collection tray is connected to the return liquid pipe.

[0019] The beneficial effects of this utility model are:

[0020] This invention, by installing permeable plugs at both ends of the liquid tank, allows the coating solution in the tank to permeate through the filter layer to the porous substrate and then flow back to the coating solution collection mechanism. The good permeability of the filter layer ensures that the coating solution in the tank flows evenly, effectively guaranteeing the uniform concentration of the coating solution in the tank and allowing impurities in the coating solution to flow away immediately without precipitation.

[0021] The porous substrate of this invention is a highly elastic sponge. The good elasticity of the sponge can ensure the plugging effect, thereby ensuring the liquid level of the coating solution in the liquid tank.

[0022] This invention uses a bracket to hold the permeable plug. The top of the bracket is open to allow the permeable plug to enter the bracket. The bracket is open on the side facing the coating roller and metering roller so that the filter layer of the permeable plug can fit against the end face of the coating roller and metering roller. The placement and removal operations are simple.

[0023] This utility model also includes a coating liquid collection mechanism, which can guide the coating liquid flowing out of the outlet into the return pipe for circulation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the installation of this utility model;

[0025] Figure 2 for Figure 1Sectional view of AA in the middle;

[0026] Figure 3 This is a schematic diagram of the permeable plug in this utility model.

[0027] In the diagram: 1. Inlet pipe; 2. Support bolt; 3. Permeable plug; 4. Support; 41. Bottle neck; 5. Side wall of coating machine; 6. Return pipe; 7. Coating roller; 8. Metering roller; 9. Coating solution;

[0028] 31. Filter layer; 32. Porous substrate; 33. Liner.

[0029] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] Example 1:

[0032] like Figures 1 to 3 As shown, this embodiment provides a permeable plugging device for photovoltaic glass coating production. The permeable plugging device is located at both ends of the coating roller 7 and the metering roller 8.

[0033] The permeable plug device includes a bracket 4 and a permeable plug 3. The bracket 4 is fixed to the inside of the side wall 5 of the coating machine, positioned between the end faces of the coating roller 7 and the metering roller 8. The top of the bracket 4 is open, and the permeable plug 3 enters the bracket through the top opening. The bracket 4 is open towards the coating roller and the metering roller, allowing the permeable plug 3 to fit against the end faces of the coating roller 7 and the metering roller 8 to form a liquid tank 9.

[0034] In this embodiment, the bracket 4 includes a mounting plate, a base plate, and side plates. The mounting plate is fixedly connected to the inner wall of the coating machine via bracket bolts 2. The base plate is fixed to the lower side of the mounting plate, and the permeable plug 3 is placed on the base plate. At the same time, side plates are also fixed to the front and rear sides of the mounting plate, which can limit the front and rear positions of the permeable plug 3.

[0035] To prevent interference between the support 4 and the coating roller 7 and metering roller 8, the base plate and side plate are at a certain distance from the end faces of the coating roller 7 and metering roller 8.

[0036] A downward-facing liquid outlet 41 is installed on the base plate, and a return liquid collection tray is provided below the liquid outlet 41. The return liquid collection tray is connected to the return liquid pipe 6 to form a coating liquid collection mechanism. The coating liquid collection mechanism can guide the coating liquid flowing out of the liquid outlet 41 into the return liquid pipe 6 for circulation.

[0037] In this embodiment, the permeable plug includes a porous substrate 32 and a filter layer 31. The side of the porous substrate 32 facing the coating roller 7 and the metering roller 8 is defined as the front side, and the side facing the support 4 is defined as the back side. Both the front and back sides of the porous substrate 32 are planar. One side of the filter layer 31 is bonded to the front side of the porous substrate, and the other side of the filter layer 31 is bonded to the end faces of the coating roller 7 and the metering roller 8.

[0038] In this embodiment, the porous substrate 32 is a square, highly elastic sponge.

[0039] In this embodiment, the filter layer consists of two layers of highly permeable filter cloth, which are layered on the front side of the porous substrate 32.

[0040] In this embodiment, a liner 33 is provided between the back of the porous substrate 32 and the mounting plate of the support 4. The thickness or number of the liner 33 can be selected as needed to determine the tightness of the filter layer 31. This ensures the effectiveness of the permeable plug 3, thereby ensuring the liquid level of the coating solution 9 in the tank.

[0041] The working principle of this utility model is as follows:

[0042] In the photovoltaic glass coating production process, the permeable plug device is first fixed to the inner wall 5 of the coating machine by the bracket 4 through the bracket bolt 2. The permeable plug 3 is placed into the bracket 4 through the upper opening, and a liner 33 is installed between the permeable plug 3 and the bracket. The tightness of the filter layer 31 is determined so that the filter layer 31 of the permeable plug 3 is in contact with the end face of the coating roller 7 and the metering roller 8 to form a liquid tank.

[0043] During operation, the coating solution 9 flows into the liquid tank through the inlet pipe 1, permeates through the filter layer 31 to the porous substrate 31, and is introduced into the return pipe 6 through the outlet 41. The good permeability of the filter layer 31 ensures that the coating solution 9 in the liquid tank flows evenly, effectively ensuring that the concentration of the coating solution 9 in the liquid tank is uniform and preventing impurities in the coating solution 9 from precipitating.

[0044] Example 2:

[0045] The difference between this embodiment and Embodiment 1 is that the liquid outlet 41 is a downward protruding threaded connector, which is directly connected to the return pipe 6 through the threaded connector.

[0046] The above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the utility model without departing from the spirit and scope of the utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

[0047] If the terms "first" or "second" are used in this document to define the components, those skilled in the art should know that the use of "first" or "second" is merely for the convenience of describing this utility model and simplifying the description, and unless otherwise stated, the above terms have no special meaning.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A permeable plugging device for photovoltaic glass coating production, wherein the permeable plugging device is located at both ends of the coating roller and the metering roller, characterized in that: The permeable plug device includes a bracket and a permeable plug. The permeable plug is installed on the side of the bracket facing the coating roller and the metering roller. The permeable plug is in contact with the end face of the coating roller and the metering roller to form a liquid tank. A coating liquid collection mechanism is provided below the permeable plug. The permeable plug includes a porous substrate and a filter layer. One side of the filter layer is bonded to the porous substrate, and the other side of the filter layer is bonded to the end face of the coating roller and the metering roller.

2. The permeable plugging device for photovoltaic glass coating production according to claim 1, characterized in that: The side of the porous substrate facing the coating roller and the metering roller is the front side, and the side facing the support is the back side; both the front and back sides of the porous substrate are planar.

3. The permeable plugging device for photovoltaic glass coating production according to claim 2, characterized in that: The porous matrix is ​​a square, highly elastic sponge.

4. The permeable plugging device for photovoltaic glass coating production according to claim 2, characterized in that: The filter layer consists of one or more layers of highly permeable filter cloth, which are layered on the front side of the porous substrate.

5. The permeable plugging device for photovoltaic glass coating production according to any one of claims 1-4, characterized in that: The bracket is fixed to the inner wall of the coating machine, and its position corresponds to the end face of the coating roller and the metering roller; The top of the support is open to allow the permeable plug to enter the support; the support is open on the side facing the coating roller and metering roller so that the filter layer of the permeable plug can fit against the end face of the coating roller and metering roller.

6. The permeable plugging device for photovoltaic glass coating production according to claim 5, characterized in that: The bracket includes a mounting plate, which is fixedly connected to the inner wall of the coating machine by bracket bolts; a base plate is fixed to the lower side of the mounting plate, and a permeable plug is placed on the base plate.

7. The permeable plugging device for photovoltaic glass coating production according to claim 6, characterized in that: Side plates are also fixed to the front and rear sides of the mounting plate.

8. The permeable plugging device for photovoltaic glass coating production according to claim 6, characterized in that: It also includes a liner, which is installed between the mounting plate and the porous substrate.

9. The permeable plugging device for photovoltaic glass coating production according to claim 6, characterized in that: The base plate is equipped with a downward-facing liquid outlet, which is connected to a return pipe to form a coating solution collection mechanism.

10. The permeable plugging device for photovoltaic glass coating production according to claim 9, characterized in that: A return liquid collection tray is provided below the liquid outlet, and the return liquid collection tray is connected to the return liquid pipe.

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