Single crystal furnace and water cooling screen thereof

Abstract

The utility model discloses a single crystal furnace and a water cooling screen thereof, the water cooling screen comprises a heat exchange main body, the interior of the heat exchange main body is divided into a plurality of water passages by partition plates, and the partition plates are arranged in an inclined manner. According to the water cooling screen, the partition plates in the heat exchange body are obliquely arranged, so that the cross section of the water channel and the water outlet have certain inclined planes instead of being rectangular, water flow accumulation in the water channel can be avoided, water flow resistance can be reduced, water flow is smoother, blockage is not prone to being generated, and therefore the water flow speed in the water channel can be increased; and therefore, cooling of the crystal bar is accelerated, and the pulling speed is increased. In addition, the water flow impact resistance of the water channel can be improved through the obliquely-arranged partition plates, and the service life of the water cooling screen is prolonged. The single crystal furnace provided by the utility model adopts the water-cooling screen, so that the single crystal furnace at least has all the technical effects which can be brought by the water-cooling screen.

Description

Technical Field

[0001] This utility model relates to the field of single crystal furnace technology, specifically to a single crystal furnace and its water-cooled screen. Background Technology

[0002] Monocrystalline silicon is a fundamental raw material in the photovoltaic power generation and semiconductor industries, and the monocrystalline furnace is an essential piece of equipment in the process of converting polycrystalline silicon into monocrystalline silicon. The monocrystalline furnace is equipped with a water-cooled screen, whose function is to accelerate the cooling rate of the crystal ingot during the monocrystalline silicon pulling process, thereby increasing the pulling speed and reducing production costs. A cross-sectional view of a water-cooled screen in the prior art is shown below. Figure 1 As shown, it includes a heat exchanger body. The interior of the heat exchanger body is divided into multiple water channels by a horizontal plate. The horizontal plate is set horizontally, and the cross-section and outlet of the water channels are rectangular. The cooling effect is still insufficient, which can easily cause phenomena such as low crystal pulling rate and uneven speed. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a water-cooled screen that can accelerate the water flow rate in the water channel, improve the heat exchange efficiency, and thus accelerate the cooling of the crystal rod and increase the pulling speed.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: a water-cooled screen, including a heat exchange body, wherein the interior of the heat exchange body is divided into multiple water passages by a partition plate, and the partition plate is inclined.

[0005] Compared to existing technologies, the advantages of this invention are as follows: In this water-cooled screen, the partition plates inside the heat exchange body are inclined, so that the cross-section of the water passage and the outlet have a certain slope, rather than being rectangular. This avoids water accumulation in the water passage, reduces water flow resistance, makes the water flow smoother, and reduces the likelihood of blockage. This accelerates the water flow velocity in the water passage, improves heat exchange efficiency, and thus speeds up the cooling of the crystal rod and increases the drawing speed. Furthermore, the inclined partition plates also increase the water passage's resistance to water flow impact, extending the service life of the water-cooled screen.

[0006] The water-cooled screen described above includes a plurality of first partitions and a plurality of second partitions. The first partitions and the second partitions are spaced apart and have different inclination directions, so that the cross-section of the water passage and the outlet are trapezoidal.

[0007] In the aforementioned water-cooled screen, the angle between the first partition and the upper outer side of the heat exchange body is 50° to 70°, and the angle between the second partition and the lower outer side of the heat exchange body is 50° to 70°.

[0008] In the aforementioned water-cooled screen, the angle between the first partition and the upper outer side of the heat exchange body is 60°, and the angle between the second partition and the lower outer side of the heat exchange body is 60°.

[0009] This utility model also provides a single crystal furnace, including the above-mentioned water-cooled screen, which has at least all the beneficial effects that the above-mentioned water-cooled screen can bring.

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0011] Figure 1 A cross-sectional view of an existing water-cooled screen;

[0012] Figure 2 This is a schematic diagram of the overall structure of the water-cooled screen according to an embodiment of the present utility model;

[0013] Figure 3 for Figure 2 A cross-sectional view of the structure shown.

[0014] The reference numerals are as follows: 100 heat exchanger body, 200 partition plate, 210 first partition plate, 220 second partition plate, 300 water passage. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below, with reference to Figure 2 and Figure 3 This utility model provides a water-cooled screen, including a heat exchange body 100. The interior of the heat exchange body 100 is divided into multiple water passages 300 by a partition plate 200, which is inclined. In this water-cooled screen, the inclined partition plate 200 inside the heat exchange body 100 ensures that the cross-section and outlet of the water passages 300 have a certain slope, rather than being rectangular. This prevents water accumulation within the water passages 300, reduces water flow resistance, and, in addition to the external driving force, alters the water flow state during water flow, increasing the water velocity and making the flow smoother and less prone to blockage. This accelerates the water flow within the water passages, improves heat exchange efficiency, and thus speeds up the cooling of the crystal rods and increases the drawing speed. Furthermore, the inclined partition plate 200 also increases the resistance of the water passages 300 to water flow impact, extending the service life of the water-cooled screen.

[0016] Furthermore, the partition plate 200 includes multiple first partitions 210 and multiple second partitions 220, which are spaced apart and have different inclination directions, so that the cross-section of the water passage 300 and the outlet are trapezoidal. Under the same conditions, the unique design of the trapezoidal outlet allows for smoother water flow and reduces the likelihood of blockage, thus facilitating faster water flow through the outlet. Compared to a rectangular outlet, this design accelerates the water flow velocity without changing the volume of the water passage, thereby improving heat exchange efficiency.

[0017] Furthermore, the angle between the first partition 210 and the upper outer side of the heat exchange body 100 is 50° to 70°, and the angle between the second partition 220 and the lower outer side of the heat exchange body 100 is 50° to 70°. Preferably, the angle between the first partition 210 and the upper outer side of the heat exchange body 100 is 60°, and the angle between the second partition 220 and the lower outer side of the heat exchange body 100 is 60°.

[0018] An embodiment of this utility model also provides a single crystal furnace, including the above-mentioned water-cooled screen, which has at least all the beneficial effects that the above-mentioned water-cooled screen can bring.

[0019] It should be noted that in the description of this utility model, any descriptions of orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships 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, be constructed or operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0020] In the description of this utility model, "several" means one or more, "more than" 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. If "first" or "second" is mentioned, it is only 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.

[0021] 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.

[0022] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A water cooled panel, characterized by, The device includes a heat exchange body (100), the interior of which is divided by a partition plate (200) to form multiple water passages (300). The partition plate (200) is inclined and includes multiple first partitions (210) and multiple second partitions (220). The first partitions (210) and the second partitions (220) are spaced apart and have different inclination directions, so that the cross-section of the water passage (300) and the outlet are trapezoidal.

2. The water screen of claim 1, wherein The angle between the first partition (210) and the upper outer side of the heat exchange body (100) is 50°~70°, and the angle between the second partition (220) and the lower outer side of the heat exchange body (100) is 50°~70°.

3. The water cooled panel of claim 2 wherein, The angle between the first partition (210) and the upper outer side of the heat exchange body (100) is 60°, and the angle between the second partition (220) and the lower outer side of the heat exchange body (100) is 60°.

4. A single crystal furnace characterized by comprising: Including the water-cooled screen as described in any one of claims 1-3.

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