Groove-type texturing device

Abstract

The application provides a groove type texturing device, comprising: a main machine table; a hot water machine comprising a water tank and a heating element; the water tank is provided with a water inlet and a water outlet, and the water tank is correspondingly provided with the heating element, which is used for heating water in the water tank corresponding to the heating element; a communication pipeline, two ends of which are respectively communicated with the water inlet of the main machine table and the water outlet of the water tank; the hot water machine further comprises an overflow pipe and a first liquid level sensor, the top wall of the water tank is provided with an overflow port, one end of the overflow pipe is communicated with the overflow port, and the first liquid level sensor is installed at the other end of the overflow pipe. The first liquid level sensor is installed on the overflow pipe, so that when the water in the water tank flows into the overflow pipe, the first liquid level sensor can detect the existence of the water flow, thereby transmitting a signal to the controller, the controller judges that there is too much water in the water tank, and thus alarms or stops supplying water to the water tank, thereby ensuring production safety.

Description

Technical Field

[0001] This utility model relates to the field of solar cell manufacturing equipment technology, and in particular to a grooved texturing device. Background Technology

[0002] The trough texturing device is mainly used in the texturing process of solar cell production. It forms a pyramid structure on the surface of the silicon wafer through etching to improve photoelectric conversion efficiency.

[0003] In the wet process, hot water is required for liquid preparation in the process tanks and during production due to process requirements. Typically, the main unit is equipped with a hot water heater. During production, outside water first enters the hot water heater, which heats the water to a preset temperature before supplying it to the main unit to preheat the liquid in the tanks. This reduces the heating time of the liquid in the tanks and improves work efficiency.

[0004] Under normal circumstances, when the water level in the water tank of the hot water heater reaches the high level, water intake will stop. However, under some abnormal conditions, such as a damaged level sensor or an abnormal water intake process, water will continue to be supplied to the tank from the outside. This can cause water to overflow from the top of the tank or from any leaking seal, leading to a series of equipment malfunctions, safety hazards, and production problems. Utility Model Content

[0005] Therefore, it is necessary to provide a trough-type flocking device that improves upon the aforementioned problems.

[0006] A trough-type flocking device, comprising:

[0007] Main unit;

[0008] A water heater includes a water tank and a heating element; the water tank has an inlet and an outlet, and the heating element is correspondingly provided in the water tank for heating the water in the corresponding water tank;

[0009] A connecting pipe is connected at both ends to the water inlet of the main unit and the water outlet of the water tank, respectively.

[0010] The water heater also includes an overflow pipe and a first liquid level sensor. An overflow port is provided on the top wall of the water tank. One end of the overflow pipe is connected to the overflow port, and the first liquid level sensor is installed at the other end of the overflow pipe.

[0011] In the aforementioned trough-type texturing device, when the level sensor is damaged or the system is in an abnormal water intake process, if the water tank is full, the water will flow through the overflow pipe to the drain pipe and then be discharged to the outside. This will prevent water from overflowing from the top of the water tank or from any leaky seals, thereby reducing the probability of safety accidents and production problems. At the same time, since a first level sensor is installed on the overflow pipe, when water flows from the water tank into the overflow pipe, the first level sensor can detect the presence of water flow and transmit the signal to the controller. The controller determines that there is too much water in the water tank and will then issue an alarm or stop supplying water to the water tank, ensuring production safety.

[0012] In one embodiment, there are multiple water tanks, and each water tank is provided with a heating element, a connecting pipe, an overflow pipe, and a first liquid level sensor.

[0013] In one embodiment, the water heater further includes a connector having a first bent section and a second bent section that are bent against each other.

[0014] The first bent section extends vertically above the top wall and communicates with the overflow port. One end of the overflow pipe is connected to the end of the second bent section away from the first bent section.

[0015] In one embodiment, the connector is detachably connected to the water tank, and the overflow pipe is detachably connected to the connector.

[0016] In one embodiment, the water heater further includes a first clamp, which is sleeved between the first bent section and the connecting portion on the top wall, and the first clamp is disposed outside the sleeved first bent section and the connecting portion.

[0017] In one embodiment, the water heater further includes a second clamp, which is sleeved between the second bent section and the overflow pipe, and the second clamp is disposed outside the sleeved second bent section and the overflow pipe.

[0018] In one embodiment, the overflow pipe is connected to the drain pipe, and a one-way valve is installed on the overflow pipe, which allows water to flow through the water tank to the drain pipe.

[0019] In one embodiment, the overflow pipe has a U-shaped bend.

[0020] In one embodiment, each of the water tanks is equipped with a low level sensor, a medium level sensor, and a high level sensor for detecting the liquid level height inside.

[0021] and / or

[0022] Each of the water tanks is equipped with a temperature sensor for detecting the temperature of the liquid inside.

[0023] In one embodiment, the trough-type flocking device further includes a water inlet pipe connected to the water inlet, and the water inlet pipe is provided with a first control valve for controlling its on / off state.

[0024] and / or

[0025] The connecting pipe is equipped with a second control valve for controlling its opening and closing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a trough-type flocking device provided in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Tank-type flocking device; 10. Hot water machine; 11. Water tank; 111. Connecting part; 12. Heating element; 13. Overflow pipe; 14. First liquid level sensor; 15. Connector; 151. First bending section; 152. Second bending section; 16. First clamp; 17. Second clamp; 18. One-way valve; 19. Low liquid level sensor; 110. Medium liquid level sensor; 120. High liquid level sensor; 130. Temperature sensor; 20. Main unit; 30. Connecting pipe; 40. Water inlet pipe; 50. First control valve; 60. Second control valve. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0030] 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.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] See Figure 1One embodiment of this application provides a trough-type texturing apparatus 100, including a main unit 20 and a hot water heater 10. Low-temperature water from an external water source can flow to the hot water heater 10, which heats the water before it is supplied to the main unit 20. The main unit 20 includes a tank for containing a chemical solution used to etch a pyramid structure onto the surface of a silicon wafer. The hot water supplied by the hot water heater 10 to the main unit 20 heats the chemical solution in the tank, preheating it and reducing the heating time, thereby improving efficiency.

[0036] In some embodiments, the hot water from the water heater 10 can be directly introduced into the tank to mix with the medicinal liquid in the tank, thereby heating the medicinal liquid. In other embodiments, the hot water from the water heater 10 is delivered to a heating chamber connected to the tank, and the tank is immersed in this heating chamber, where the medicinal liquid is heated through heat transfer. This method avoids direct contact with the medicinal liquid during heating, does not affect the components in the medicinal liquid, and provides relatively uniform heating.

[0037] Further reading Figure 1 The hot water heater 10 includes a water tank 11 and a heating element 12. The water tank 11 has an inlet and an outlet, and the heating element 12 is correspondingly provided in the water tank 11 to heat the water in the corresponding water tank 11. The trough-type fabrication device 100 also includes a connecting pipe 30, the two ends of which are connected to the inlet of the main unit 20 and the outlet of the water tank 11, respectively. With this configuration, water from an external water source can flow into the water tank 11 through the inlet, the heating element 12 heats the water entering the water tank 11, and the heated water flows from the outlet through the connecting pipe 30 into the main unit 20 to heat the medicinal liquid in the trough.

[0038] Further reading Figure 1The water heater 10 includes an overflow pipe 13 and a first liquid level sensor 14. An overflow port is provided on the top wall of the water tank 11. One end of the overflow pipe 13 is connected to the overflow port, and the first liquid level sensor 14 is installed at the other end of the overflow pipe 13. Specifically, the trough-type fabrication device 100 also includes a controller, and the first liquid level sensor 14 is connected to the controller. The other end of the overflow pipe 13 is connected to a drain pipe (not shown in the figure). With this configuration, when the level sensor malfunctions or the system is in an abnormal water intake process, if the water tank 11 is full, the water will flow through the overflow pipe 13 to the drain pipe and then be discharged to the outside. This prevents water from overflowing from the top of the water tank 11 or from any leaky seals, thus reducing the probability of safety accidents and production problems. At the same time, since the first level sensor 14 is installed on the overflow pipe 13, when water flows from the water tank 11 into the overflow pipe 13, the first level sensor 14 can detect the presence of water flow and transmit the signal to the controller. The controller determines that there is too much water in the water tank 11 and then issues an alarm or stops supplying water to the water tank 11, ensuring production safety.

[0039] The first liquid level sensor 14 can be a capacitive liquid level sensor. Capacitive liquid level sensors operate based on the difference in dielectric constant between liquid and air. When the sensor probe comes into contact with water, the capacitance value changes significantly. The sensor converts this change into an electrical signal (switching signal or analog signal) to determine the presence of water in the pipe. Alternatively, the first liquid level sensor 14 can also be a float-type liquid level switch. A float-type liquid level switch uses buoyancy to drive a float up and down, triggering an internal mechanical switch (such as a reed switch). When there is water in the pipe, the float rises, turning on the switch; when there is no water, the float sinks, turning off the switch, thus outputting a "water present / water absent" switch signal to the controller. Furthermore, the first liquid level sensor 14 can also be a photoelectric liquid level sensor. The infrared light emitted by the sensor is reflected when it encounters the liquid surface and received by the receiver. If there is no water in the pipe, the infrared light will penetrate the air or pipe wall, and the receiver will not receive the signal. This difference is used to determine whether there is water in the pipe.

[0040] In some embodiments, there are multiple water tanks 11, each water tank 11 being equipped with a heating element 12, a connecting pipe 30, an overflow pipe 13, and a first liquid level sensor 14. When there are multiple water tanks 11, the main unit 20 needs to have multiple water inlets, with each connecting pipe 30 connected to one water inlet. Since the main unit 20 requires a large amount of hot water, the water heater 10 is equipped with multiple water tanks 11 that can simultaneously supply water to the main unit 20 to ensure its water demand. Furthermore, each water tank 11 is equipped with a heating element 12, which heats the water in its corresponding tank 11 to ensure a rapid temperature rise and timely supply of hot water to the main unit 20.

[0041] In one specific implementation, see further details. Figure 1 The number of water tanks 11 is three. Of course, in other embodiments, the number of water tanks 11 is not limited, such as one, two or more than three water tanks 11.

[0042] In some embodiments, the water heater 10 further includes a connector 15 having a first bent section 151 and a second bent section 152 that are bent against each other. The first bent section 151 extends vertically above the top wall of the tank and communicates with the overflow port. One end of the overflow pipe 13 is connected to the end of the second bent section 152 away from the first bent section 151. The connector 15 facilitates the connection between the overflow pipe 13 and the water tank 11.

[0043] It should be understood that in some other embodiments, the water heater 10 may omit the connector 15, in which case the overflow pipe 13 is directly connected to the water tank 11.

[0044] In some embodiments, the first bending segment 151 and the second bending segment 152 are arranged perpendicularly. In other embodiments, the included angle between the first bending segment 151 and the second bending segment 152 can be an acute angle or an obtuse angle, depending on the specific working conditions, and is not limited here.

[0045] Furthermore, the connector 15 is detachably connected to the water tank 11, and the overflow pipe 13 is detachably connected to the connector 15. This allows for easy disassembly and replacement or cleaning of the overflow pipe 13 when it becomes clogged.

[0046] Continue reading Figure 1 The water heater 10 also includes a first clamp 16, which is sleeved between the first bent section 151 and the connecting part 111 on the top wall. The first clamp 16 is clamped outside the sleeved first bent section 151 and the connecting part. In use, the first clamp 16 can hold the first bent section 151 and the connecting part tightly to ensure reliable connection; when it is necessary to replace the connector 15, the first clamp 16 also facilitates the disassembly of the connector 15 and the connecting part 111, which is convenient and quick.

[0047] The water heater 10 also includes a second clamp 17, which is sleeved between the second bent section 152 and the overflow pipe 13. The second clamp 17 is clamped on the outside of the sleeved second bent section 152 and the overflow pipe 13. In use, the second clamp 17 can hold the second bent section 152 and the overflow pipe 13 tightly, ensuring reliable connection; when it is necessary to replace the overflow pipe 13, the second clamp 17 also facilitates the disassembly of the overflow pipe 13 and the connector 15, which is convenient and quick.

[0048] Generally, the overflow pipe 13 is connected to the drain pipe, which discharges the water from the overflow pipe 13 to the outside. Since water from other structures is also discharged to the outside through the drain pipe, there is pressure inside the drain pipe. Under pressure, the water in the drain pipe is prone to backflow into the water tank 11 through the overflow pipe 13.

[0049] In some embodiments, a one-way valve 18 is installed on the overflow pipe 13. The one-way valve 18 operates by directing water through the water tank 11 to the drain pipe and preventing water in the drain pipe from flowing back into the overflow pipe 13. By setting the one-way valve 18, it is possible to prevent water in the drain pipe from flowing back into the overflow pipe 13, thereby protecting the safe operation of the water heater 10 and related equipment.

[0050] In other embodiments, the overflow pipe 13 has a U-shaped bend (not shown in the figure) that uses a naturally formed "water seal" inside the pipe to block reverse flow and prevent water from flowing back into the overflow pipe 13 from the drain pipe.

[0051] In some embodiments, see further reference. Figure 1 Each water tank 11 is equipped with a low-level sensor 19, a medium-level sensor 110, and a high-level sensor 120 to detect the liquid level inside. Specifically, the low-level sensor 19, the medium-level sensor 110, and the high-level sensor 120 are all float-type liquid level switches. By setting the low-level sensor 19, the medium-level sensor 110, and the high-level sensor 120, the liquid level in the water tank 11 can be determined to control the water level in the water tank 11 and whether the heating element 12 heats the water in the water tank 11.

[0052] The low level sensor 19, medium level sensor 110, and high level sensor 120 can employ the following control logic to control the water level in the water tank 11:

[0053] When the float of the low liquid level sensor 19 is lit and the float of the medium liquid level sensor 110 is not lit, water enters the water tank 11. Water entry stops when the water level reaches the high liquid level sensor 120. Heating does not stop during water entry.

[0054] When the float of the low liquid level sensor 19 is not lit and the float of the medium liquid level sensor 110 is lit, water is forced in to prevent the heating element 12 from burning dry due to a problem.

[0055] When there is too much water in the water tank 11, it flows from the overflow pipe 13 to the drain pipe and is discharged through the drain pipe.

[0056] In some embodiments, the trough-type fabrication device 100 further includes a water inlet pipe 40, which is connected to a water inlet. A first control valve 50 is provided on the water inlet pipe 40 to control its on / off state. The first control valve 50 on the water inlet pipe 40 facilitates control over whether water enters the water tank 11. Specifically, when there are multiple water tanks 11, each water tank 11 is provided with one water inlet pipe 40 and one first control valve 50.

[0057] Furthermore, a second control valve 60 is provided on the connecting pipe 30 to control its on / off state, so as to control whether the water tank 11 supplies water to the main unit 20. Specifically, when there are multiple water tanks 11, each water tank 11 is provided with a connecting pipe 30 and a second control valve 60.

[0058] In some embodiments, the water heater 10 also includes a temperature sensor 130, which is installed on each water tank 11. The temperature sensor 130 is used to detect the temperature of the water in the water tank 11, and supplies the water to the main unit 20 when the water in the water tank 11 reaches a preset temperature.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A trough-type flocking device, characterized in that, include: Main unit (20); A water heater (10) includes a water tank (11) and a heating element (12); the water tank (11) has an inlet and an outlet, and the water tank (11) is provided with a corresponding heating element (12), which is used to heat the water in the water tank (11) to which it is located; The connecting pipe (30) is connected at both ends to the water inlet of the main unit (20) and the water outlet of the water tank (11), respectively. The water heater (10) also includes an overflow pipe (13) and a first liquid level sensor (14). The top wall of the water tank (11) is provided with an overflow port. One end of the overflow pipe (13) is connected to the overflow port, and the first liquid level sensor (14) is installed at the other end of the overflow pipe (13).

2. The trough-type flocking device according to claim 1, characterized in that, There are multiple water tanks (11), and each water tank (11) is provided with a heating element (12), a connecting pipe (30), an overflow pipe (13), and a first liquid level sensor (14).

3. The trough-type flocking device according to claim 1, characterized in that, The water heater (10) also includes a connector (15), which has a first bent section (151) and a second bent section (152) that are bent against each other. The first bent section (151) extends vertically above the top wall and communicates with the overflow port. One end of the overflow pipe (13) is connected to the end of the second bent section (152) away from the first bent section (151).

4. The trough-type flocking device according to claim 3, characterized in that, The connector (15) is detachably connected to the water tank (11), and the overflow pipe (13) is detachably connected to the connector (15).

5. The trough-type flocking device according to claim 4, characterized in that, The water heater (10) also includes a first clamp (16), which is sleeved between the first bent section (151) and the connecting part (111) on the top wall. The first clamp (16) is clamped outside the first bent section (151) and the connecting part (111) that are sleeved together.

6. The trough-type flocking device according to claim 4, characterized in that, The water heater (10) also includes a second clamp (17), which is sleeved between the second bent section (152) and the overflow pipe (13). The second clamp (17) is clamped outside the sleeved second bent section (152) and the overflow pipe (13).

7. The trough-type flocking device according to claim 1, characterized in that, The overflow pipe (13) is connected to the drainage pipe, and a one-way valve (18) is installed on the overflow pipe (13). The one-way valve (18) allows water to flow through the water tank (11) to the drainage pipe.

8. The trough-type flocking device according to claim 1, characterized in that, The overflow pipe (13) has a U-shaped bend.

9. The trough-type flocking device according to claim 1, characterized in that, Each of the water tanks (11) is equipped with a low level sensor (19), a medium level sensor (110) and a high level sensor (120) for detecting the liquid level height inside the tank; and / or Each of the water tanks (11) is equipped with a temperature sensor (130) for detecting the temperature of the liquid inside.

10. The trough-type flocking apparatus according to claim 1, characterized in that, The trough-type flocking device also includes a water inlet pipe (40), which is connected to the water inlet, and a first control valve (50) is provided on the water inlet pipe (40) for controlling its on / off state; and / or The connecting pipe (30) is provided with a second control valve (60) for controlling its opening and closing.

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