Solvent supplementing device and coating equipment

Abstract

The utility model discloses a solvent supplementing device and coating equipment, and relates to the technical field of photovoltaic solar glass. The solvent supplementing device comprises a first containing part, a second containing part and a controller, the first containing part is used for containing a solvent and communicated with a first input pipeline, a second input pipeline and an output pipeline, the first input pipeline is used for being communicated with a liquid outlet of a machining device, and the second input pipeline is used for being communicated with a liquid outlet of the machining device. The output pipeline is used for communicating with a liquid inlet of a processing device; the second accommodating part is used for accommodating the replenishment liquid, and the second accommodating part is communicated with the first accommodating part through a second input pipeline; wherein the first containing part further comprises a liquid level sensor, the second containing part further comprises a first pump driving part used for driving the replenishment liquid to be input into the first containing part through the second input pipeline, the first pump driving part and the liquid level sensor are in communication connection with the controller, and the solvent replenishment device can achieve automatic monitoring and adjustment so as to ensure that the liquid level is constant.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic solar glass technology, and in particular to a solvent replenishment device and a coating equipment. Background Technology

[0002] With the development of the photovoltaic industry, the demand for photovoltaic solar glass is increasing. In related technologies, a coating layer is often applied to the surface of photovoltaic solar glass to improve its light transmittance and reduce light reflection.

[0003] Current technologies mostly employ front-panel roller coating processes, using silica sol solvent for coating. The solvent replenishment and circulation system typically consists of a circulation tank and supply pipes, enabling a continuous solvent supply. However, if the liquid level in the circulation tank is insufficient during production, it will inevitably lead to a decrease in solvent supply, resulting in quality problems such as color differences in the coating appearance and poor gain performance. If this is not detected in time, it can cause batch defects, posing significant quality risks and severely impacting finished product efficiency. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a solvent replenishment device capable of automated monitoring and adjustment to ensure a constant liquid level.

[0005] This invention also proposes a coating device having the above-mentioned solvent replenishment device.

[0006] The solvent replenishment device according to a first aspect embodiment of the present invention includes:

[0007] A first container is used to contain a solvent. The first container is connected to a first input pipe, a second input pipe, and an output pipe. The first input pipe is used to connect to the liquid outlet of the processing device, and the output pipe is used to connect to the liquid inlet of the processing device.

[0008] The second container is used to contain replenishment fluid, and the second container is connected to the first container through the second input pipe;

[0009] Controller;

[0010] The first container further includes a liquid level sensor, and the second container further includes a first pump drive for driving the replenishment liquid to be input into the first container through the second input pipe. The first pump drive and the liquid level sensor are respectively communicatively connected to the controller.

[0011] The solvent replenishment device according to the embodiments of the present invention has at least the following beneficial effects:

[0012] The solvent replenishment device of this application reduces production costs and improves resource utilization by recycling solvents. In addition, by establishing an automated real-time monitoring and adjustment mechanism, it ensures a constant liquid level, which not only guarantees the coating quality but also reduces unnecessary downtime during the production process, greatly improving production efficiency.

[0013] According to some embodiments of the present invention, the output pipe is provided with a first sensor, which is communicatively connected to the controller. The first sensor is configured to detect the pressure in the output pipe or to detect the flow rate in the output pipe.

[0014] According to some embodiments of the present invention, the liquid level sensor includes a float portion disposed within the first accommodating member, the density of the float portion being less than the density of the solvent in the first accommodating member, so that the float portion can float on the surface of the solvent.

[0015] According to some embodiments of the present invention, the solvent replenishment device further includes an alarm, which is communicatively connected to the controller.

[0016] According to some embodiments of the present invention, the solvent replenishment device further includes a backup pipe, one end of which is connected to the second accommodating member, and the other end is used to connect to the liquid inlet of the processing device. The backup pipe is provided with a second pump drive that is communicatively connected to the controller. The second pump drive is configured to drive the replenishment liquid to flow through the backup pipe to the liquid inlet when the output pipe and / or the second input pipe malfunctions.

[0017] According to some embodiments of the present invention, the solvent replenishment device includes at least two second accommodating elements and at least two second input pipes, and each second accommodating element is connected to the first accommodating element through a corresponding second input pipe.

[0018] A coating apparatus according to a second aspect embodiment of the present invention includes:

[0019] The processing device includes a liquid inlet and a liquid outlet;

[0020] As described in any of the above embodiments, the solvent replenishment device has a first input pipe connected to the outlet and an output pipe connected to the inlet.

[0021] According to some embodiments of the present invention, the coating equipment includes a first coating roller and a second coating roller, and the liquid outlet is disposed above the first coating roller and the second coating roller.

[0022] According to some embodiments of the present invention, the first coating roller and the second coating roller define a roller gap, the coating equipment further includes a recovery tray, the recovery tray is disposed below the roller gap, and the liquid outlet is connected to the recovery tray.

[0023] According to some embodiments of the present invention, the recovery tray is inclined and the liquid outlet is located at the bottom of the recovery tray.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a schematic diagram of the coating equipment according to an embodiment of the present invention.

[0027] Figure label:

[0028] First receiving component 100; first input pipe 110; second input pipe 120; output pipe 130; first sensor 131; liquid level sensor 140; float 141; third pump drive component 150;

[0029] Second receiving component 200; First pump drive component 210;

[0030] Controller 300;

[0031] Liquid inlet 410; Liquid outlet 420; First coating roller 430; Second coating roller 440; Recovery tray 450; Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] With the development of the photovoltaic industry, the demand for photovoltaic solar glass is increasing. In related technologies, a coating layer is often applied to the surface of photovoltaic solar glass to improve its light transmittance and reduce light reflection.

[0038] Current technologies mostly employ front-panel roller coating processes, using silica sol solvent for coating. The solvent replenishment and circulation system typically consists of a circulation tank and supply pipes, enabling a continuous solvent supply. However, if the liquid level in the circulation tank is insufficient during production, it will inevitably lead to a decrease in solvent supply, resulting in quality problems such as color differences in the coating appearance and poor gain performance. If this is not detected in time, it can cause batch defects, posing significant quality risks and severely impacting finished product efficiency.

[0039] To address the aforementioned problems, a first aspect of this application provides a solvent replenishment device for supplying solvent to a processing apparatus. For example... Figure 1As shown, the solvent replenishment device includes a first container 100, a second container 200, and a controller 300. The first container 100 is used to contain solvent, and the second container 200 is used to contain replenishing liquid. When the solvent in the first container 100 is consumed, the replenishing liquid in the second container 200 can replenish the first container 100 to maintain a stable solvent level in the first container 100. It should be noted that the processing device includes an inlet 410, through which the solvent replenishment device can supply solvent to the processing device to achieve solar glass coating. To improve solvent utilization and reduce production costs, the solvent needs to be recycled. Therefore, the processing device also includes an outlet 420, which is used to output the recycled solvent to the solvent replenishment device.

[0040] Specifically, the first container 100 is connected to a first input pipe 110, a second input pipe 120, and an output pipe 130. The first input pipe 110 is connected to the liquid outlet 420 of the processing device to receive the solvent recovered by the processing device and transport it back into the first container 100 for recycling. The output pipe 130 is connected to the liquid inlet 410 of the processing device to stably supply solvent to the processing device, so that the coating process can be carried out continuously. The second container 200 is connected to the first container 100 through the second input pipe 120. When the solvent in the first container 100 gradually decreases due to processing losses or other reasons, the second input pipe 120 can replenish the first container 100 with the replenishing liquid in the second container 200 in a timely manner, ensuring a stable solvent level, avoiding coating quality problems caused by a drop in liquid level, and improving production efficiency and finished product quality.

[0041] Furthermore, it should be noted that, to ensure a stable liquid level in the first container 100, the solvent replenishment device of this embodiment can achieve automated real-time monitoring and adjustment. Specifically, the solvent replenishment device also includes a liquid level sensor 140, which can be used to detect the liquid level height in the first container 100. The second container 200 also includes a first pump drive 210, which is disposed on the second input pipe 120 and is used to drive the replenishment liquid to be input into the first container 100 through the second input pipe 120. The solvent replenishment device also includes a controller 300, which is communicatively connected to the first pump drive 210 and the liquid level sensor 140. The liquid level information detected by the liquid level sensor 140 is transmitted to the controller 300, which compares it with the set liquid level height and generates a control signal that is transmitted to the first pump drive 210. For example, when the liquid level in the first container 100 is lower than the set value, the controller 300 will start the first pump drive 210 to pump the replenishment liquid in the second container 200 to the first container 100; when the liquid level is detected to return to normal, the controller 300 will send a signal to stop pumping.

[0042] Based on the above, the solvent replenishment device of this application reduces production costs and improves resource utilization by recycling solvents. In addition, by establishing an automated real-time monitoring and adjustment mechanism, it ensures a constant liquid level, which not only guarantees the coating quality but also reduces unnecessary downtime during the production process, greatly improving production efficiency.

[0043] Understandably, the output pipe 130 is also equipped with a third pump drive 150, which is used to drive the solvent to be stably delivered to the processing device through the output pipe 130, ensuring the continuous operation of the coating process. The third pump drive 150 is controlled by the controller 300, which dynamically adjusts the delivery rate according to the processing requirements, further optimizing solvent utilization and improving coating uniformity and efficiency.

[0044] In some embodiments, the output pipe 130 of this application is provided with a first sensor 131, which is communicatively connected to the controller 300. Depending on the object being detected, the first sensor 131 may be a flow rate sensor for detecting the solvent flow rate in the output pipe 130; alternatively, the first sensor 131 may also be a pressure sensor for detecting the solvent pressure in the output pipe 130. The first sensor 131 may be disposed within the output pipe 130 as a contact sensor, or it may be attached to the outer wall of the output pipe 130 as a non-contact sensor.

[0045] The first sensor 131 can monitor the solvent status in the output pipe 130 in real time. When the solvent flow rate or pressure becomes abnormal, the first sensor 131 immediately feeds back the abnormal information to the controller 300. The controller 300 responds quickly, adjusting the pumping rate of the third pump drive 150 or shutting down the pump. For example, when the output pipe 130 is damaged, the first sensor 131 detects a pressure drop in the output pipe 130. The controller 300 controls the third pump drive 150 to shut down and simultaneously issues an alarm message to remind operators to carry out timely repairs to avoid large-scale quality problems caused by insufficient solvent supply. Through the linkage mechanism between the first sensor 131 and the controller 300, the system's ability to respond to emergencies is further improved.

[0046] In some embodiments, the liquid level sensor 140 may be a photoelectric sensor, an infrared sensor, or something similar. Figure 1 The float sensor shown includes a float portion 141 disposed in the first container 100. The float portion 141 has a density less than that of the solvent in the first container 100. When the first container 100 contains solvent, the float portion 141 floats on the surface of the solvent, thereby enabling the float sensor to obtain the height of the solvent surface and transmit the surface information to the controller 300 for comparison.

[0047] In some embodiments, the solvent replenishment device further includes an alarm (not shown) that is communicatively connected to the controller 300. When the controller 300 receives information from the level sensor 140 and / or the first sensor 131 and determines that an abnormal state has been reached, the alarm will be activated, emitting an alarm sound or displaying alarm information on the display screen to alert the operator and prompt them to take timely measures to ensure safe and stable production.

[0048] In some embodiments, the solvent replenishment device further includes a backup pipeline (not shown in the figure), one end of which is connected to the second receiving member 200, and the other end is connected to the liquid inlet 410 of the processing device. A T-junction can be installed at the liquid inlet 410 of the processing device, one end of which is connected to the liquid inlet 410, one end to the backup pipeline, and the other end to the output pipeline 130. The backup pipeline is equipped with a second pump drive that is communicatively connected to the controller 300. When the output pipeline 130 or the second input pipeline 120 experiences blockage, damage, or other abnormal operating conditions, or when the first pump drive 210 or the third pump drive 150 malfunctions, the controller 300 will activate the second pump drive to supply replenishment fluid directly to the processing device through the backup pipeline, ensuring continuous operation of the production line. Simultaneously, the system records fault information to provide data support for subsequent maintenance and optimization. When the backup pipeline is activated, the operating status of the second pump drive is also fed back to the controller 300 in real time.

[0049] Alternatively, the backup pipe and the second input pipe 120 are connected to the second container 200 via a three-way valve. The three-way valve is controlled by the controller to selectively open either the backup pipe or the second input pipe 120. The replenishment fluid in the second container 200 is driven by the first pump drive 210 and flows through the backup pipe to the inlet 410, or through the second input pipe 120 to the first container 100.

[0050] In some embodiments, the solvent replenishment device includes at least two second containers 200 and at least two second input pipes 120. Each second container 200 is connected to a first container 100 through a corresponding second input pipe 120. Each second input pipe 120 is connected to a first pump drive 210. Thus, each second container 200 can store the same or different types of solvents according to different production needs, making the system more flexible and able to cope with diverse production scenarios. Taking the storage of the same type of solvent in each second container 200 as an example, when the solvent in one second container 200 is exhausted, the controller 300 can automatically switch to another second container 200 to ensure the continuity and stability of production. When an emergency occurs during production, such as a sudden large consumption of solvent, the controller 300 can respond quickly, automatically coordinating the sensors and pump drives, and controlling one or more first pump drives 210 to simultaneously replenish the first container 100 rapidly, thereby ensuring the smooth operation of the production process.

[0051] A second aspect of this application provides a coating apparatus, which includes a processing unit and a solvent replenishment device as mentioned in any of the preceding embodiments. This device can monitor and automatically adjust the solvent supply in real time, ensuring that the processing unit maintains optimal operating condition during continuous operation.

[0052] Furthermore, the coating equipment includes a first coating roller 430 and a second coating roller 440, with a liquid outlet 420 disposed above the first coating roller 430 and the second coating roller 440. The solvent drips naturally from the liquid outlet 420 under the influence of gravity and adheres to the surface of the first coating roller 430 and / or the second coating roller 440, so that the solvent is evenly distributed and a stable coating layer is formed.

[0053] Furthermore, the first coating roller 430 and the second coating roller 440 define a roller gap. The coating equipment also includes a recovery tray 450, which is placed below the coating rollers to collect excess solvent. The outlet 420 is connected to the recovery tray 450, thereby realizing the recycling of solvent, reducing waste, and improving environmental benefits. The recovery tray 450 may be equipped with filter screens or other filter elements to ensure the purity of the recovered solvent and extend its service life.

[0054] In addition, such as Figure 1 As shown, the recovery tray 450 is tilted, and the liquid outlet 420 is located at the bottom of the recovery tray 450 so that the solvent dripping onto the recovery tray 450 can flow to the liquid outlet 420 under the action of gravity, thereby improving the recovery efficiency.

[0055] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A solvent replenishment device, characterized in that, include: A first container is used to contain a solvent. The first container is connected to a first input pipe, a second input pipe, and an output pipe. The first input pipe is used to connect to the liquid outlet of the processing device, and the output pipe is used to connect to the liquid inlet of the processing device. The second container is used to contain replenishment fluid, and the second container is connected to the first container through the second input pipe; Controller; The first container further includes a liquid level sensor, and the second container further includes a first pump drive for driving the replenishment liquid to be input into the first container through the second input pipe. The first pump drive and the liquid level sensor are respectively communicatively connected to the controller.

2. The solvent replenishment device according to claim 1, characterized in that, The output pipe is equipped with a first sensor, which is communicatively connected to the controller. The first sensor is configured to detect either the pressure in the output pipe or the flow rate in the output pipe.

3. The solvent replenishment device according to claim 1, characterized in that, The liquid level sensor includes a float portion disposed within the first accommodating member. The density of the float portion is less than the density of the solvent in the first accommodating member, so that the float portion can float on the surface of the solvent.

4. The solvent replenishment device according to claim 1, characterized in that, The solvent replenishment device also includes an alarm, which is communicatively connected to the controller.

5. The solvent replenishment device according to claim 1, characterized in that, The solvent replenishment device further includes a backup pipe, one end of which is connected to the second accommodating element, and the other end is used to connect to the liquid inlet of the processing device. The backup pipe is provided with a second pump drive that is communicatively connected to the controller. The second pump drive is configured to drive the replenishment liquid to flow through the backup pipe to the liquid inlet when the output pipe and / or the second input pipe malfunctions.

6. The solvent replenishment device according to claim 1, characterized in that, The solvent replenishment device includes at least two second accommodating elements and at least two second input pipes, with each second accommodating element connected to the first accommodating element via a corresponding second input pipe.

7. A coating equipment, characterized in that, include: The processing device includes a liquid inlet and a liquid outlet; The solvent replenishment device according to any one of claims 1 to 6, wherein the first input pipe of the solvent replenishment device is connected to the liquid outlet, and the output pipe of the solvent replenishment device is connected to the liquid inlet.

8. The coating equipment according to claim 7, characterized in that, The coating equipment includes a first coating roller and a second coating roller, and the liquid outlet is located above the first coating roller and the second coating roller.

9. The coating equipment according to claim 8, characterized in that, The first coating roller and the second coating roller define a roller gap. The coating equipment also includes a recovery tray, which is located below the roller gap, and the liquid outlet is connected to the recovery tray.

10. The coating equipment according to claim 9, characterized in that, The recovery tray is tilted, and the liquid outlet is located at the bottom of the recovery tray.

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