Mixture water adding scale bucket device for photovoltaic production

Abstract

The utility model relates to the technical field of water adding equipment, in particular to a mixture water adding scale hopper device for photovoltaic production, which comprises a scale hopper, a weighing module and a control module. The upper part of the weighing hopper is connected with a water inlet pipe, a pressurizing pipe and an exhaust pipe, and the lower part of the weighing hopper is provided with a drainage pipe; a first electromagnetic valve is arranged on the water inlet pipe, a second electromagnetic valve is arranged on the pressurizing pipe, a third electromagnetic valve is arranged on the exhaust pipe, and a fourth electromagnetic valve is arranged on the drainage pipe. And the weighing module is arranged at the lower part of the weighing hopper. The control module is in communication connection with the weighing module, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve. The control module, the weighing module, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are used at the same time, the water outlet amount can be increased, water outlet is fast, pipeline water is completely drained, water resource waste is avoided, and accurate adding of water can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water adding equipment, and particularly relates to a mixture water adding scale hopper device for photovoltaic production. Background Art

[0002] In the production process of photovoltaic modules, the mixing of silicon materials is one of the key steps, which affects the efficiency and quality of the final product. In order to obtain high-performance photovoltaic cells, it is necessary to ensure that various raw materials are fully and evenly mixed. In this process, an appropriate amount of water usually needs to be added to the dry materials to promote the uniform fusion between different materials. The traditional method of adding water to the mixture is the metering method of a water pump and a flowmeter or the method of a scale hopper with a water pump.

[0003] When using the metering method of a water pump and a flowmeter, the water pump is used to transport water from the water source to the mixer, and the amount of water added to the mixer is monitored and controlled through the flowmeter. Although this method is widely used, there are some significant deficiencies: inaccurate metering: the output flow of the water pump may change due to factors such as pressure fluctuations, wear, or equipment aging, resulting in a deviation between the actual water addition amount and the preset value. large error: the accuracy of the flowmeter itself is limited by its range, calibration status, and the hydrodynamic characteristics of the installation position, and is easily affected by bubbles, impurity blockages, etc., resulting in large measurement errors.

[0004] When using the method of a scale hopper with a water pump, first, the required amount of water needs to be weighed using the scale hopper, and then the pre-weighed water is quickly injected into the mixer through the water pump. For example, the utility model patent with the authorization announcement number CN209851305U provides a liquid precise weighing device for a concrete mixing station, which supplies water to the metering hopper through two outlet pipes with different diameters. Solenoid valves are provided on both outlet pipes. The metering hopper is installed on the frame through a weighing module. Both the solenoid valve and the weighing module are connected to the control unit. The control unit controls the opening and closing of the two outlet pipes according to the data of the control weighing module. It adopts a method of combining rapid water supply and micro-adjustment water supply to achieve precise weighing of the water volume or liquid volume.

[0005] Although this method improves the accuracy of the water addition amount to a certain extent, there are still the following problems: unable to form mist-like water droplets: the quickly injected water cannot be fully atomized, resulting in uneven water distribution in the mixer and affecting the mixing effect. fast water output and large volume: the quickly and largely injected water makes it difficult for the materials in the mixer to absorb the water in time, resulting in local over-wetting or caking phenomena. residual water in the pipeline cannot be drained completely: the residual water in the water pump and pipeline system cannot be completely drained, which not only wastes resources but also may cause bacteria to breed or corrosion inside the pipeline. Based on this, the existing technology still needs to be improved. Summary of the Utility Model

[0006] After research by the inventor, it is found that in the production of photovoltaic glass, except for broken glass, after weighing all other raw materials, they need to be evenly mixed in a mixer. Since most raw materials contain almost no moisture, if dry-mixed, they are prone to stratification and it is very difficult to achieve the process requirements for the mixing degree. After adding an appropriate amount of water, the raw materials will stick together through the water, increasing the uniformity.

[0007] In view of this, aiming at the above problems in the prior art, the present utility model aims to provide a weighing hopper device for adding water to the mixture, so as to improve the metering accuracy and mixing uniformity in the process of adding water to the batch material, and optimize the drainage performance of the pipeline system. By precisely controlling the water volume, improving the water flow pattern and ensuring the system cleanliness, the present utility model is expected to significantly improve the photovoltaic production efficiency and product quality, reduce the production cost, and contribute to the sustainable development of the photovoltaic industry.

[0008] A weighing hopper device for adding water to the mixture used in photovoltaic production provided by the present utility model includes: a weighing hopper, a weighing module and a control module. An inlet pipe, a pressurizing pipe and an exhaust pipe communicating with it are connected to the upper part of the weighing hopper. A drain pipe is arranged at the lower part of the weighing hopper, and a nozzle is installed at the drainage end of the drain pipe; a first solenoid valve is arranged on the inlet pipe, a second solenoid valve is arranged on the pressurizing pipe, a third solenoid valve is arranged on the exhaust pipe, and a fourth solenoid valve is arranged on the drain pipe. The weighing module is arranged at the lower part of the weighing hopper and is used to detect the weight of the weighing hopper and the liquid inside it. The control module is communicatively connected with the weighing module, the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve, and the control module is configured to control the opening and closing of the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve based on the data detected by the weighing module.

[0009] In some embodiments, the weighing hopper device for adding water to the mixture used in photovoltaic production further includes a pressure sensor. The pressure sensor is arranged inside the weighing hopper and is communicatively connected with the control module.

[0010] In some embodiments, the weighing module includes a plurality of weighing sensors and a display communicatively connected with the plurality of weighing sensors; the plurality of weighing sensors are arranged circumferentially around the weighing hopper. The display is used to display the weight data information detected by each weighing sensor and transmit the weight data obtained by the plurality of weighing sensors to the control module.

[0011] In some embodiments, the weighing hopper device for adding water to the mixture used in photovoltaic production further includes a support frame. The support frame includes a horizontally arranged annular support plate and a plurality of support legs for supporting the annular support plate. The weighing hopper is located inside the annular support plate, and the plurality of weighing sensors are arranged on the annular support plate. A pressing plate corresponding to the number of weighing sensors is installed on the outer peripheral wall of the weighing hopper, and the pressing plate presses on the weighing module.

[0012] In some embodiments, there are three load cells, and the three load cells are evenly distributed circumferentially around the pressure sensor.

[0013] In some embodiments, the water inlet pipe is vertically installed in the middle of the top of the weighing hopper.

[0014] In some embodiments, one end of the pressure pipe is communicated with the side of the water inlet pipe.

[0015] In some embodiments, the water inlet pipe, the exhaust pipe and the drain pipe are hermetically connected to the weighing hopper through flexible corrugated rubber gaskets.

[0016] In some embodiments, the control module includes a PLC controller and a host computer communicatively connected to the PLC controller.

[0017] The host computer is configured to receive the signals transmitted by the pressure sensor and the load cell, convert them into air pressure data and weight data, perform an average process on multiple weight data, and then transmit the air pressure data and the weight data to the PLC controller.

[0018] An initial air pressure value, a target air pressure value, an initial weight value and a target weight value are set in the PLC controller. The PLC controller is configured to compare the acquired air pressure data with the initial air pressure value and the target air pressure value, and compare the acquired weight data with the initial weight value and the target weight value to control the opening and closing of the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve.

[0019] In some embodiments, the host computer is further configured to be able to display the working states of the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve, and display the injection pressure of the nozzle.

[0020] The beneficial effects of the present utility model are as follows: By providing a nozzle at the drainage end of the drain pipe in this application, it is convenient to form misty water droplets during drainage, so that the moisture added to the mixer is evenly distributed, the water can be absorbed in time, avoiding local over-wetting or caking phenomena, and the mixing effect is good. At the same time, by combining the use of the control module, the weighing module, the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve, the water output can be increased, the water can be discharged quickly, the water in the pipeline can be drained out, avoiding water waste, and the accurate addition of water volume can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other embodiments can be obtained based on these drawings without creative efforts.

[0022] Figure 1 The structural schematic diagram of the mixture adding weighing hopper device for photovoltaic production provided by an embodiment of the present utility model;

[0023] Figure 2 The schematic diagram of the control module provided by an embodiment of the present utility model.

[0024] Description of the reference numerals:

[0025] 1. weighing hopper; 2. support frame; 3. weighing sensor; 4. pressure pipe; 5. second solenoid valve; 6. water inlet pipe; 7. exhaust pipe; 8. third solenoid valve; 9. flexible corrugated rubber ring; 10. drain pipe; 11. fourth solenoid valve; 12. PLC controller; 13. upper computer; 14. pressure sensor; 15. first solenoid valve. Specific embodiments

[0026] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the following further describes the embodiments of the present utility model in detail with reference to specific embodiments and the accompanying drawings.

[0027] It should be noted that all the expressions using "first" and "second" in the embodiments of the present utility model are used to distinguish two entities or parameters with the same name but different, so "first" and "second" are only for the convenience of expression and should not be understood as a limitation to the embodiments of the present utility model. This will not be repeated in the subsequent embodiments.

[0028] A mixture adding weighing hopper device for photovoltaic production proposed by the present utility model is as Figure 1As shown in the figure, it includes a weighing hopper 1, a weighing module, and a control module. The upper part of the weighing hopper 1 is connected with a water inlet pipe 6, a pressurizing pipe 4, and an exhaust pipe 7 that are communicated with it. The lower part of the weighing hopper 1 is provided with a drain pipe 10, and a spray head is installed at the drainage end of the drain pipe 10. Preferably, the spray head is a shower head. A first solenoid valve 15 is provided on the water inlet pipe 6, a second solenoid valve 5 is provided on the pressurizing pipe 4, a third solenoid valve 8 is provided on the exhaust pipe 7, and a fourth solenoid valve 11 is provided on the drain pipe 10. When the first solenoid valve 15 is opened, water can be added into the weighing hopper 1 through the water inlet pipe 6. When the second solenoid valve 5 is opened, gas can be introduced into the weighing hopper 1 through the pressurizing pipe 4, so that the pressure inside the weighing hopper 1 increases. When the third solenoid valve 8 is opened, the inside of the weighing hopper 1 is communicated with the outside, so that the pressure inside the weighing hopper 1 is the same as the outside atmospheric pressure. When the fourth solenoid valve 11 is opened, the drain pipe 10 can drain the water in the weighing hopper 1. The weighing module is arranged at the lower part of the weighing hopper 1 and is used to detect the weight of the weighing hopper 1 and the liquid inside it. The control module is communicatively connected to the weighing module, the first solenoid valve 15, the second solenoid valve 5, the third solenoid valve 8, and the fourth solenoid valve 11. The control module is configured to control the opening and closing of the first solenoid valve 15, the second solenoid valve 5, the third solenoid valve 8, and the fourth solenoid valve 11 based on the data detected by the weighing module.

[0029] Specifically, when the present utility model is applied, the solid raw materials are first weighed, and the theoretical weight of water to be added to the solid raw materials is weighed. Before adding water into the weighing hopper 1, the control module first closes the second solenoid valve 5 and the fourth solenoid valve 11, opens the first solenoid valve 15 and the third solenoid valve 8, and starts to add water into the weighing hopper 1 through the water inlet pipe 6. The weighing module transmits the weight of water to the control module in real time according to the bridge principle. When the weight data detected by the weighing module approaches or reaches the preset weight value, the first solenoid valve 15 is closed, and the water addition is stopped. After the weight data detected by the weighing module is stable, the third solenoid valve 8 is closed, then the second solenoid valve 5 is opened, and high-pressure air is introduced into the weighing hopper 1 through the pressurizing pipe 4. After a period of time, the control module controls the second solenoid valve 5 to close for pressure holding. After waiting for all other raw materials to enter the mixer and dry mixing for a certain time, the control module controls the fourth solenoid valve 11 to open to drain water into the mixer; the dry mixing time is set by the control module.

[0030] When the drainage starts, the control module also opens the second solenoid valve 5 at the same time to introduce high-pressure gas into the weighing hopper 1. Since the pressure inside the weighing hopper 1 is relatively high, water will continuously shoot out from the spray head. The shape and flow rate of the water spray are related to the pressure. At this time, the dry materials in the mixer are stirred while adding water, so that various raw materials are mixed evenly to meet the process requirements. When the weight data detected by the weighing module no longer changes, the control module closes the second solenoid valve 5 and the fourth solenoid valve 11 in sequence, and opens the first solenoid valve 15 and the third solenoid valve 8 to wait for the next water addition process.

[0031] Compared with the prior art, the utility model is provided with a nozzle at the drainage end of the drain pipe 10, which is convenient for forming misty water droplets during drainage, enabling the water added into the mixer to be evenly distributed, the water to be absorbed in time, avoiding local over-wetting or caking phenomena, and having a good mixing effect. At the same time, combined with the use of a control module, a weighing module, a first solenoid valve 15, a second solenoid valve 5, a third solenoid valve 8 and a fourth solenoid valve 11, the water output can be increased, the water can be discharged quickly, the water in the pipeline can be drained completely, avoiding water waste resources, and the accurate addition of water volume can be realized.

[0032] In some embodiments, the mixture adding water weighing hopper device for photovoltaic production further includes a pressure sensor 14. The pressure sensor 14 is arranged inside the weighing hopper 1 and is used to detect the air pressure inside the weighing hopper 1. The pressure sensor 14 is communicatively connected with the control module to transmit the detected air pressure to the control module. When the detected air pressure reaches a preset value, the control module closes the second solenoid valve 5 for pressure holding.

[0033] In some embodiments, the weighing module includes a plurality of weighing sensors 3 and a display communicatively connected with the plurality of weighing sensors 3; the plurality of weighing sensors 3 are arranged circumferentially around the weighing hopper 1. The display is used to display the weight data information detected by each weighing sensor 3 and transmit the weight data obtained by the plurality of weighing sensors 3 to the control module, so as to adjust the opening and closing of the first solenoid valve 15, the second solenoid valve 5, the third solenoid valve 8 and the fourth solenoid valve 11 through the control module, realizing centralized processing and analysis of data. The display can display the weight data detected by each weighing sensor 3 in real time, facilitating the user to view and understand the current weighing situation. When a weighing sensor 3 fails or the data is abnormal, the display can display the corresponding error information to remind the user to process it in time.

[0034] In some embodiments, as Figure 1 shown, the mixture adding water weighing hopper device for photovoltaic production further includes a support frame 2. The support frame 2 includes a horizontally arranged annular support plate and a plurality of support legs for supporting the annular support plate. The weighing hopper 1 is located inside the annular support plate, and the plurality of weighing sensors 3 are arranged on the annular support plate. A pressing plate corresponding to the number of weighing sensors 3 is installed on the outer peripheral wall of the weighing hopper 1, and the pressing plate presses on the weighing module. The setting of the support frame 2 is used to support the overall weighing sensors 3 and the weighing hopper 1, making the detection of the weighing sensors 3 more accurate.

[0035] In some embodiments, the number of the weighing sensors 3 is three, and the three weighing sensors 3 are evenly distributed circumferentially around the pressure sensor 14, so as to reduce the number of weighing sensors 3 while stably supporting the weighing sensors 3 and saving costs.

[0036] In some embodiments, the water inlet pipe 6 is vertically installed in the middle of the top of the weighing hopper 1 to avoid the impact force of water when adding water through the water inlet pipe 6 acting on the water inlet pipe 6 and affecting the detection data of the weighing sensor 3.

[0037] In some embodiments, one end of the pressure pipe 4 is communicated with the side of the water inlet pipe 6, reducing the number of openings on the weighing hopper 1 and enabling the gas introduced from the pressure pipe 4 to wash the inner pipe wall of the water inlet pipe 6.

[0038] In some embodiments, the water inlet pipe 6, the exhaust pipe 7 and the drain pipe 10 are sealingly connected to the weighing hopper 1 through a flexible corrugated rubber ring 9. The flexible corrugated rubber ring 9, as an elastic buffer element, can absorb and isolate the vibration and displacement stress from the pipeline. When the pipeline moves due to temperature changes, pressure adjustments or other factors, this movement may cause damage to the weighing equipment. By installing the flexible corrugated rubber ring 9 between the pipeline and the weighing hopper 1, this direct physical impact can be effectively reduced, thereby protecting the weighing hopper 1 from external forces and ensuring the measurement accuracy.

[0039] In some embodiments, as Figure 2 shown, the control module includes a PLC controller 12 and a host computer 13 communicatively connected to the PLC controller 12.

[0040] The host computer 13 is configured to receive the signals transmitted by the pressure sensor 14 and the weighing sensor 3, convert them into air pressure data and weight data, perform an average value process on multiple weight data, and then transfer the air pressure data and weight data to the PLC controller 12. The host computer 13 can be, for example, a computer.

[0041] Initial air pressure values, target air pressure values, initial weight values and target weight values are set in the PLC controller 12. The PLC controller 12 is configured to compare the acquired air pressure data with the initial air pressure value and the target air pressure value, and compare the acquired weight data with the initial weight value and the target weight value to control the opening and closing of the first solenoid valve 15, the second solenoid valve 5, the third solenoid valve 8 and the fourth solenoid valve 11. The PLC controller 12 automatically monitors and operates the equipment on the production line through a preset program, reducing manual intervention, thereby improving the automation level of production. This not only reduces the labor cost but also reduces the production problems caused by human operation errors.

[0042] In some embodiments, the host computer 13 is further configured to be able to display the working states of the first solenoid valve 15, the second solenoid valve 5, the third solenoid valve 8, and the fourth solenoid valve 11, as well as the injection pressure of the nozzle. By displaying the working states (open / closed) of the solenoid valves in real time, the host computer 13 enables the operator or the automation system to timely understand the actual working conditions of each valve. This immediate feedback is crucial for optimizing the production process, reducing downtime, and quickly responding to potential problems. During the production process, the normal operation of the solenoid valves is one of the important factors to ensure the safe operation of the machine. Once a solenoid valve fails or has a response delay, the host computer 13 can immediately issue an alarm, thereby preventing possible accidents and ensuring the safety of the entire production process.

[0043] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0044] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A mixture water adding hopper device for photovoltaic production, characterized in that, Comprising: A weighing hopper (1), an inlet pipe (6), a pressurizing pipe (4) and an exhaust pipe (7) which are connected to the upper part of the weighing hopper (1) and communicate with it. A drain pipe (10) is arranged at the lower part of the weighing hopper (1), and a nozzle is installed at the drainage end of the drain pipe (10); A first solenoid valve (15) is arranged on the inlet pipe (6), a second solenoid valve (5) is arranged on the pressurizing pipe (4), a third solenoid valve (8) is arranged on the exhaust pipe (7), and a fourth solenoid valve (11) is arranged on the drain pipe (10); A weighing module, which is arranged at the lower part of the weighing hopper (1) and is used to detect the weight of the weighing hopper (1) and the liquid inside it; A control module, which is communicatively connected to the weighing module, the first solenoid valve (15), the second solenoid valve (5), the third solenoid valve (8) and the fourth solenoid valve (11). The control module is configured to control the opening and closing of the first solenoid valve (15), the second solenoid valve (5), the third solenoid valve (8) and the fourth solenoid valve (11) based on the data detected by the weighing module.

2. The mixture adding and weighing hopper device for photovoltaic production according to claim 1, wherein, It further includes a pressure sensor (14), which is arranged inside the weighing hopper (1), and the pressure sensor (14) is communicatively connected to the control module.

3. The mixture adding weighing hopper device for photovoltaic production according to claim 2, characterized in that, The weighing module includes a plurality of load cells (3) and a display communicatively connected to the plurality of load cells (3); The plurality of load cells (3) are arranged circumferentially around the weighing hopper (1); The display is used to display the weight data information detected by each load cell (3) and transmit the weight data obtained by the plurality of load cells (3) to the control module.

4. The mixture adding and weighing hopper device for photovoltaic production according to claim 3, characterized in that, It further includes a support frame (2), which includes a horizontally arranged annular support plate and a plurality of support legs for supporting the annular support plate. The weighing hopper (1) is located inside the annular support plate, and the plurality of load cells (3) are arranged on the annular support plate; A plurality of pressing plates corresponding to the load cells (3) are installed on the outer peripheral wall of the weighing hopper (1), and the pressing plates press on the weighing module.

5. The mixture adding and weighing hopper device for photovoltaic production according to claim 4, characterized in that, The number of the load cells (3) is three, and the three load cells (3) are evenly distributed circumferentially around the pressure sensor (14).

6. The mixture adding and weighing hopper device for photovoltaic production according to claim 1, wherein The inlet pipe (6) is vertically installed in the middle of the top of the weighing hopper (1).

7. The water adding hopper device for photovoltaic production according to claim 6, characterized in that, One end of the pressurizing pipe (4) communicates with the side of the inlet pipe (6).

8. The mixture adding water weighing hopper device for photovoltaic production according to claim 7, characterized in that, The inlet pipe (6), the exhaust pipe (7) and the drain pipe (10) are hermetically connected to the weighing hopper (1) through a flexible corrugated rubber ring (9).

9. The mixture adding water weighing hopper device for photovoltaic production according to claim 4, wherein, The control module includes a PLC controller (12) and a host computer (13) communicatively connected to the PLC controller (12); The host computer (13) is used to receive the signals transmitted by the pressure sensor (14) and the load cells (3), convert them into air pressure data and weight data, and perform an average process on the plurality of weight data, and then transmit the air pressure data and weight data to the PLC controller (12); An initial air pressure value, a target air pressure value, an initial weight value, and a target weight value are set in the PLC controller (12); the PLC controller (12) is configured to compare the acquired air pressure data with the initial air pressure value and the target air pressure value, and compare the acquired weight data with the initial weight value and the target weight value, so as to control the opening and closing of the first solenoid valve (15), the second solenoid valve (5), the third solenoid valve (8), and the fourth solenoid valve (11).

10. The mixture adding weighing hopper device for photovoltaic production according to claim 9, characterized in that, The upper computer (13) is further configured to be able to display the working states of the first solenoid valve (15), the second solenoid valve (5), the third solenoid valve (8), and the fourth solenoid valve (11), and display the injection pressure of the nozzle.

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