A spray system

Abstract

This utility model discloses a spray system, including an inlet pipe, a spray pipe, a circulating water pump, and a water storage tank. One end of the spray pipe is connected to the outlet of the circulating water pump, and the other end of the spray pipe is connected to both the inlet pipe and the water storage tank via a T-connector. Control valves are installed between the inlet pipe, the water storage tank, the spray pipe, and the T-connector. The inlet of the circulating water pump is connected to the water storage tank, and a filter mechanism is installed between the inlet of the circulating water pump and the water storage tank. A one-way valve is installed between the outlet of the circulating water pump and the spray pipe. This utility model provides a spray system that can flush the inside of the spray pipe while the equipment is operating normally. It also allows for the collection and recycling of some of the flushing water, reducing maintenance costs and effectively mitigating the impact of equipment downtime on equipment uptime.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cleaning technology, and in particular to a spray system. Background Technology

[0002] In the N-type Topcon cell manufacturing process, a chain cleaning machine is needed to remove the diffusion layer formed on the back and periphery of the silicon wafer during diffusion. Currently, chain cleaning machine spray systems on the market use spray pipes to continuously spray cleaning water onto the silicon wafer surface. The liquid flow carries away residual chemicals from the wafer surface, achieving the purpose of cleaning. Since the cleaning water used for silicon wafer cleaning is usually tap water supplied by the factory, scale will accumulate on the inner wall of the spray pipes after prolonged use. This scale buildup not only affects the water flow rate of the spray pipes but may also clog the water outlets, thus reducing the cleaning effect on the silicon wafers.

[0003] Current chain cleaning machine spray systems, due to structural limitations, typically require equipment shutdown followed by manual cleaning, unclogging, or replacement of the spray pipes after disassembly. This results in poor cleaning performance and high maintenance costs. Furthermore, equipment shutdown for maintenance can negatively impact equipment uptime.

[0004] Based on this, a spray system is proposed to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a spray system that enables the rinsing of the spray pipes during normal equipment operation.

[0006] To solve the above-mentioned technical problems, this utility model provides a spraying system, including an inlet pipe, a spray pipe, a circulating water pump, and a water storage tank;

[0007] One end of the spray pipe is connected to the outlet end of the circulating water pump, and the other end of the spray pipe is connected to the inlet pipe and the water storage tank respectively through a T-connector.

[0008] Control valves are installed between the water inlet pipe, the water storage tank, the spray pipe, and the tee pipe;

[0009] The inlet end of the circulating water pump is connected to the water storage tank;

[0010] A filter mechanism is provided between the inlet end of the circulating water pump and the water storage tank, and a one-way valve is provided between the outlet end of the circulating water pump and the spray pipe.

[0011] Furthermore, there are multiple spray pipes, which are arranged in parallel with uniform spacing, and both ends of the multiple spray pipes are connected to the tee pipe and the outlet end of the circulating water pump, respectively.

[0012] Furthermore, a control valve is provided between each of the spray pipes and the three-way pipe.

[0013] Furthermore, a drain outlet is provided at the bottom of the water storage tank, and a control valve is installed on the drain outlet.

[0014] Furthermore, an exhaust port is provided on the top of the water storage tank.

[0015] Furthermore, a low-position float switch is installed at the lower end of the interior of the water storage tank;

[0016] When the water level inside the water tank drops to the working water level of the low-position float switch, the low-position float switch opens the control valve between the water tank and the three-way pipe.

[0017] Furthermore, a high-position float switch is installed at the upper part of the inside of the water storage tank;

[0018] When the water level inside the water tank rises to the working water level of the high-level float switch, the high-level float switch closes the control valve between the water tank and the three-way pipe.

[0019] Furthermore, a control valve is provided between the water storage tank and the filtration mechanism.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] The present invention provides a spray system that can flush the inside of the spray pipes while the equipment is running normally. At the same time, it can collect and recycle part of the water used for flushing, which reduces the maintenance cost of the spray system and effectively avoids the impact of equipment downtime on equipment uptime. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the spray system of this utility model.

[0023] In the diagram: 1. Inlet pipe; 2. Spray pipe; 3. Circulating water pump; 4. Water storage tank; 41. Exhaust port; 42. Sewage outlet; 5. T-pipe; 6. Control valve; 7. Filter mechanism; 8. Check valve; 9. Low-position float switch; 10. High-position float switch. Detailed Implementation

[0024] The spray system of this utility model will now be described in more detail with reference to the schematic diagrams, which illustrate preferred embodiments of this utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the utility model.

[0025] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0026] like Figure 1 As shown in the figure, this utility model embodiment proposes a spraying system, including a water inlet pipe 1, a spray pipe 2, a circulating water pump 3, and a water storage tank 4;

[0027] One end of the spray pipe 2 is connected to the outlet end of the circulating water pump 3, and the other end of the spray pipe 2 is connected to the water inlet pipe 1 and the water storage tank 4 respectively through the tee pipe 5.

[0028] Control valves 6 are installed between the water inlet pipe 1, the water storage tank 4, the spray pipe 2, and the tee pipe 5;

[0029] The inlet end of the circulating water pump 3 is connected to the water storage tank 4;

[0030] A filter mechanism 7 is provided between the inlet end of the circulating water pump 3 and the water storage tank 4, and a one-way valve 8 is provided between the outlet end of the circulating water pump 3 and the spray pipe 2.

[0031] In the above embodiments, the sprinkler system may include the following operating modes:

[0032] (1) Water replenishment mode in the water storage tank: When replenishing the water inside the water storage tank 4, open the control valve 6 between the inlet pipe 1 and the three-way pipe 5 and the control valve 6 between the water storage tank 4 and the three-way pipe 5, and close the control valve 6 between the spray pipe 2 and the three-way pipe 5. The external water source enters the water storage tank 4 from the inlet pipe 1, so that the water storage tank 4 stores the backup water source for cleaning the spray pipe 2.

[0033] (2) Silicon wafer spray cleaning mode: When performing silicon wafer spray cleaning, open the control valve 6 between the water inlet pipe 1 and the three-way pipe 5 and the control valve 6 between the spray pipe 2 and the three-way pipe 5, and close the control valve 6 between the water storage tank 4 and the three-way pipe 5. The external water source enters the spray pipe 2 from the water inlet pipe 1 and is sprayed out to the surface of the silicon wafer through the spray nozzle of the spray pipe 2 for silicon wafer spray cleaning.

[0034] (3) Spray pipe internal flushing mode: Open the control valve 6 between the water inlet pipe 1 and the three-way pipe 5 and the control valve 6 between the water storage tank 4 and the three-way pipe 5, and start the circulating water pump 3 at the same time. The water source in the water storage tank 4 enters the spray pipe 2 after being filtered by the filter mechanism 7 under the suction of the circulating water pump 3, so as to flush the inside of the spray pipe 2. Part of the water source used to flush the spray pipe 2 is mixed with a small amount of dirt and sprayed out through the spray nozzle of the spray pipe 2, while part of the water carries the dirt back to the water storage tank 4 for recycling.

[0035] In the above embodiments, the control valve 6 can be a manually controlled valve or an electrically controlled valve. If the control valve 6 is an electrically controlled valve, a related control system can be installed to automatically open or close each control valve 6 according to a predetermined logic program, thereby achieving automatic switching between different modes of the sprinkler system and reducing manual labor.

[0036] In summary, the spray system proposed in this embodiment can perform spray cleaning on silicon wafers and can rinse the inside of the spray pipes while the equipment is running normally, without having to stop the machine to disassemble the spray pipes 2. At the same time, it can collect some of the water used for rinsing for recycling, which reduces the maintenance cost of the spray system and effectively avoids the impact of equipment downtime on equipment uptime.

[0037] In the above embodiment, a drain outlet 42 is provided at the bottom of the water storage tank 4, and a control valve 6 is also installed on the drain outlet 42.

[0038] By setting up the drain outlet 42, and using the control valve 6 thereon, the dirt accumulated inside the water storage tank 4 can be cleaned regularly and effectively.

[0039] In one specific embodiment, in order to ensure the normal water discharge and water storage of the water storage tank 4, an exhaust port 41 is provided on the top of the water storage tank 4 so that the air pressure inside the water storage tank 4 is consistent with that outside.

[0040] Meanwhile, to prevent the water level inside the water tank from becoming too low and causing the circulating water pump 3 to run dry and be damaged, a low-position float switch 9 is installed at the lower end of the water tank 4.

[0041] Specifically, when the water level inside the water tank 4 drops to the working water level of the low-position float switch 9, the low-position float switch 9 opens the control valve 6 between the water tank 4 and the three-way pipe 5, so as to replenish the water source inside the water tank 4 in a timely manner.

[0042] Furthermore, to prevent the water level in the water storage tank 4 from becoming too high and overflowing, thus wasting water, a high-level float switch 10 is installed at the upper part of the inside of the water storage tank 4.

[0043] Specifically, when the water level inside the water tank 4 rises to the working water level of the high-level float switch 10, the high-level float switch 10 closes the control valve 6 between the water tank 4 and the three-way pipe 5, thereby closing the water inlet channel of the water tank 4.

[0044] It should be noted that how the low-position float switch 9 and the high-position float switch 10 control the opening and closing of the control valve 6 between the water storage tank 4 and the three-way pipe 5 is existing technology and will not be elaborated here.

[0045] Preferably, a control valve 6 is also provided between the water storage tank 4 and the filter mechanism 7.

[0046] Specifically, the control valve between the water storage tank 4 and the filter mechanism 7 is only opened to flush the inside of the spray pipe 2, so as to avoid affecting the filtration performance of the filter mechanism 7 due to long-term immersion in water inside the filter mechanism 7.

[0047] In another specific embodiment, there are multiple spray pipes 2, which are arranged in parallel with uniform spacing, and both ends of the multiple spray pipes 2 are respectively connected to the three-way pipe 5 and the outlet end of the circulating water pump 3.

[0048] By using multiple spray pipes 2, a larger spray cleaning area is formed. Furthermore, a control valve 6 is provided between each spray pipe 2 and the three-way pipe 5 to allow for individual and free adjustment of the spray flow rate and pressure of multiple spray pipes.

[0049] In summary, compared with the prior art, this utility model has at least the following advantages:

[0050] The present invention provides a spray system that can flush the inside of the spray pipes while the equipment is running normally. At the same time, it can collect and recycle some of the pure water used for flushing, which reduces the maintenance cost of the spray system and effectively avoids the impact of equipment downtime on equipment uptime.

[0051] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A sprinkler system characterized in that, The water inlet pipe, the spray pipe, the circulating water pump and the water storage tank are included. One end of the spray pipe is communicated with the outlet end of the circulating water pump, and the other end of the spray pipe is communicated with the water inlet pipe and the water storage tank through the three-way pipe. Control valves are arranged between the water inlet pipe, the water storage tank and the spray pipe and the three-way pipe. The inlet end of the circulating water pump is communicated with the water storage tank. A filtering mechanism is arranged between the inlet end of the circulating water pump and the water storage tank, and a one-way valve is arranged between the outlet end of the circulating water pump and the spray pipe.

2. The sprinkler system of claim 1, wherein The spray pipe has multiple roots, and the multiple roots of the spray pipe are arranged in parallel with uniform spacing, and the two ends of the multiple roots of the spray pipe are respectively communicated with the three-way pipe and the outlet end of the circulating water pump.

3. The sprinkler system of claim 2, wherein A control valve is arranged between each of the spray pipes and the three-way pipe.

4. The sprinkler system of claim 1, wherein A sewage outlet is arranged at the bottom of the water storage tank, and a control valve is arranged on the sewage outlet.

5. The sprinkler system of claim 1, wherein An exhaust port is arranged at the top of the water storage tank.

6. The sprinkler system of claim 1, wherein A low-level floating ball switch is arranged at the lower end inside the water storage tank. When the water level inside the water storage tank drops to the working water level of the low-level floating ball switch, the low-level floating ball switch opens the control valve between the water storage tank and the three-way pipe.

7. The sprinkler system of claim 1, wherein A high-level floating ball switch is arranged at the upper end inside the water storage tank. When the water level inside the water storage tank rises to the working water level of the high-level floating ball switch, the high-level floating ball switch closes the control valve between the water storage tank and the three-way pipe.

8. The sprinkler system of claim 1, wherein A control valve is arranged between the water storage tank and the filtering mechanism.

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