Solar photovoltaic diffusion source bottle and solar cell processing equipment

By adding a horizontal intake pipe and multiple air outlets in the solar photovoltaic diffusion source bottle, the problem of poor mixing effect of nitrogen and oxychloride when the liquid level becomes low is solved, ensuring the quality of the silicon wafer and reducing production costs.

CN223163529UActive Publication Date: 2025-07-29TRINA SOLAR CO LTD
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Patent Information

Application Number
CN202422471151.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2025-07-29
Estimated Expiration
2034-10-12

AI Technical Summary

Technical Problem

When the liquid level in the existing solar photovoltaic diffusion source bottle becomes low, the mixing effect of nitrogen and phosphorus oxychloride becomes worse, resulting in a decrease in the quality of finished silicon wafers and an increase in production costs.

Method used

A second air intake pipe arranged horizontally is added to the source bottle, and a plurality of air outlets are provided in the length direction thereof. After the gas passes through the air intake pipe, a plurality of small bubbles are formed, and the liquid oxychloride is fully mixed, and the air outlets are arranged in the circumferential and radial directions of the inner bottom wall to extend the mixing time.

Benefits of technology

Even when the liquid level is lowered, the quality of the finished silicon wafer can be guaranteed, avoiding the replacement of the source bottle in advance, and reducing production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of photovoltaic power generation, particularly provides a solar photovoltaic diffusion source bottle and solar cell processing equipment, and aims to solve the problem that when the liquid level in the source bottle becomes low, the mixing effect of nitrogen and phosphorus oxychloride becomes poor, so that the quality of a finished silicon wafer is reduced. Therefore, the solar photovoltaic diffusion source bottle comprises a containing bottle, air inlet pipes and an air outlet pipe, the air inlet pipes comprise the first air inlet pipe and the second air inlet pipe, the first air inlet pipe is inserted from the top of the containing bottle and extends towards the inner bottom wall of the containing bottle, the second air inlet pipe is communicated with the bottom end of the first air inlet pipe, and the second air inlet pipe is horizontally arranged. The second gas inlet pipe is provided with a plurality of gas outlet holes, nitrogen entering the liquid phosphorus oxychloride can become a plurality of small bubbles and is more fully mixed with the liquid phosphorus oxychloride, and the gas outlet holes are uniformly formed in the circumferential direction and the radial direction of the bottle bottom of the containing bottle, so that the mixing effect with the liquid phosphorus oxychloride can be further improved through the arrangement.
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Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, and specifically provides a solar photovoltaic diffusion source bottle and solar cell processing equipment. Background Art

[0002] With the increasing shortage of global energy, the use of solar energy has received more and more attention. The application area of solar photovoltaic modules is becoming wider and wider, involving multiple industries and fields.

[0003] Photovoltaic modules include multiple solar cells. Solar photovoltaic diffusion source bottles are needed in the production process of solar cells. The source bottle is a carrier for the liquid phosphorus oxychloride required for diffusion to form a PN junction during the production of photovoltaic cells. Its function is to introduce nitrogen through the air inlet pipe. The introduced nitrogen forms bubbles in the liquid phosphorus oxychloride. The bubbles can carry the liquid phosphorus oxychloride and pass it into the furnace tube through the air outlet pipe to form a PN junction on the silicon wafer.

[0004] Although the bottom end of the air inlet pipe of the existing source bottle is close to the bottom of the source bottle, when the liquid level in the source bottle becomes low, the time for nitrogen and phosphorus oxychloride to mix will become shorter, and accordingly, the mixing effect will also become worse. Due to the worsening mixing effect, the square resistance of the produced silicon wafers will become higher, resulting in a decrease in the quality of the finished silicon wafers, an increase in the cost per kilowatt-hour, and serious rework, which will increase production costs. In order to prevent the above situation, it is generally adopted to replace the source bottle in advance. However, replacing the source bottle in advance will cause waste of liquid in the source bottle.

[0005] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the above technical problem, that is, to solve the problem that when the liquid level in the source bottle becomes low, the mixing effect of nitrogen and phosphorus oxychloride becomes poor, resulting in reduced quality of finished silicon wafers.

[0007] In the first aspect, the utility model provides a solar photovoltaic diffusion source bottle, which includes a containing bottle, an air inlet pipe and an air outlet pipe. The air inlet pipe includes a first air inlet pipe and a second air inlet pipe. The first air inlet pipe is inserted from the top of the containing bottle and extends toward the inner bottom wall of the containing bottle. The second air inlet pipe is connected to the bottom end of the first air inlet pipe. The second air inlet pipe is arranged horizontally. The second air inlet pipe is provided with a plurality of air outlet holes distributed at intervals along its length direction. The plurality of air outlet holes are arranged circumferentially along the inner bottom wall and at least two circles are arranged radially.

[0008] In the preferred technical solution of the above-mentioned solar photovoltaic diffusion source bottle, the cross-sectional area of the second air inlet pipe is larger than the cross-sectional area of the first air inlet pipe.

[0009] In the preferred technical solution of the above-mentioned solar photovoltaic diffusion source bottle, the cross-sectional area of the second air inlet pipe gradually increases along the gas flow direction.

[0010] In the preferred technical solution of the above-mentioned solar photovoltaic diffusion source bottle, the vertical distance between the second air inlet pipe and the inner bottom wall is not greater than 2.0 mm.

[0011] In the preferred technical solution of the above-mentioned solar photovoltaic diffusion source bottle, the vertical distance between the second air inlet pipe and the inner bottom wall is zero.

[0012] In the preferred technical solution of the above-mentioned solar photovoltaic diffusion source bottle, the diameter of the air outlet hole is 1.0 mm to 3.0 mm.

[0013] In the preferred technical solution of the above-mentioned solar photovoltaic diffusion source bottle, the ratio of the area of the inner bottom wall covered by the second air inlet pipe to the total area of the inner bottom wall is greater than 0.6.

[0014] In the preferred technical solution of the above-mentioned solar photovoltaic diffusion source bottle, the solar photovoltaic diffusion source bottle further includes a liquid level detection member for detecting the liquid level in the containing bottle.

[0015] In the preferred technical solution of the above-mentioned solar photovoltaic diffusion source bottle, the second air inlet pipe is spiral in a top view; or

[0016] The second air inlet pipe at least includes a first annular pipe section, a second annular pipe section, and a connecting pipe section for connecting the first annular pipe section and the second annular pipe section. At least one of the first annular pipe section and the second annular pipe section is communicated with the bottom end of the first air inlet pipe. The first annular pipe section surrounds the second annular pipe section, and a plurality of the air outlet holes are provided on both the first annular pipe section and the second annular pipe section.

[0017] In a second aspect, the present invention further provides a solar cell processing device including the above-mentioned solar photovoltaic diffusion source bottle.

[0018] In the case of adopting the above technical solution, a horizontally arranged pipe section, i.e., the second air inlet pipe, is added to the air inlet pipe of the present utility model. Moreover, a plurality of air outlet holes are arranged along the length direction of the second air inlet pipe. The nitrogen gas entering the liquid phosphorus oxychloride will turn into a plurality of small bubbles. Compared with a large bubble, the mixing of the plurality of small bubbles with the liquid phosphorus oxychloride is more sufficient. Even when the liquid level of the liquid phosphorus oxychloride decreases, it is beneficial to fully mix with the liquid phosphorus oxychloride, which is beneficial to ensuring the quality of the finished silicon wafer. In addition, a plurality of air outlet holes are arranged circumferentially along the inner bottom wall of the accommodating bottle, and a plurality of air outlet holes are also arranged radially along the inner bottom wall of the accommodating bottle. Through such a setting, the mixing effect with the liquid phosphorus oxychloride can be further improved.

[0019] Furthermore, in the present utility model, by making the cross-sectional area of the second air inlet pipe larger than that of the first air inlet pipe, after the gas enters the second air inlet pipe from the first air inlet pipe, the flow velocity of the gas will slow down, and the rising speed of the bubbles will also slow down, which is beneficial to prolonging the mixing time with the liquid phosphorus oxychloride, thereby further improving the mixing effect with the liquid phosphorus oxychloride.

[0020] Still further, in the present utility model, by making the cross-sectional area of the second air inlet pipe gradually increase along the flow direction of the air flow, the flow velocity of the air flow can be further reduced, which is more beneficial to prolonging the mixing time with the liquid phosphorus oxychloride, thereby further improving the mixing effect with the liquid phosphorus oxychloride.

[0021] Still further, in the present utility model, by making the second air inlet pipe fit with the inner bottom wall of the accommodating bottle without any gap, in this way, the influence of the liquid level can be minimized.

[0022] Still further, in the present utility model, by limiting the diameter of the air outlet hole to be 1.0 mm to 3.0 mm, it can not only avoid affecting the processing efficiency due to the too small diameter of the air outlet hole, but also avoid affecting the mixing effect due to the too large diameter of the air outlet hole resulting in too few bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings, in which:

[0024] Figure 1 is a schematic structural view of the solar photovoltaic diffusion source bottle of the present utility model;

[0025] Figure 2 is Figure 1 a schematic view of Embodiment 1 of the cross-sectional view taken along line A-A in

[0026] Figure 3 is Figure 1 a schematic view of Embodiment 2 of the cross-sectional view taken along line A-A in

[0027] List of reference numerals:

[0028] 1. Holding bottle; 2. Air outlet pipe; 3. First air inlet pipe; 4. Second air inlet pipe; 41. First annular pipe section; 42. Second annular pipe section; 43. Connecting pipe section; 5. Air outlet hole; 6. Liquid level detection member; 7. Base. Detailed implementation manners

[0029] The preferred implementation manners of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0030] It should be noted that in the description of the present utility model, terms indicating directions or positional relationships such as "left", "right", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "arranged", "connected", and "installed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] Specifically, the present utility model provides a solar cell processing device, and this solar cell processing device includes a solar photovoltaic diffusion source bottle, as Figure 1 shown, the solar photovoltaic diffusion source bottle of the present utility model includes a holding bottle 1, an air inlet pipe, and an air outlet pipe 2.

[0033] Among them, the space in the holding bottle 1 can hold a liquid solution, such as liquid phosphorus oxychloride, etc. The top end of the air inlet pipe is communicated with a gas supply device, and the bottom end of the air inlet pipe extends into the liquid solution in the holding bottle 1. The gas supply device can supply gas to the air inlet pipe, such as nitrogen, etc. Nitrogen enters the liquid phosphorus oxychloride along the air inlet pipe to form bubbles. The bubbles are mixed with the liquid phosphorus oxychloride during the rising process. The bubbles carrying the liquid phosphorus oxychloride enter the air outlet pipe 2 and enter the furnace tube along the air outlet pipe 2.

[0034] As can be seen from the background technology, when the liquid level of the liquid phosphorus oxychloride in the holding bottle 1 becomes low, the contact time between the bubbles discharged from the air inlet pipe and the liquid phosphorus oxychloride becomes shorter, and the mixing effect between the bubbles and the liquid phosphorus oxychloride will also become worse, resulting in a reduction in the quality of the finished silicon wafers. To solve the above problems, as Figures 1 to 3As shown, the air inlet pipe of the present invention includes a first air inlet pipe 3 and a second air inlet pipe 4. The first air inlet pipe 3 is inserted from the top of the containing bottle 1 and extends toward the inner bottom wall of the containing bottle 1. The second air inlet pipe 4 is connected to the bottom end of the first air inlet pipe 3. The second air inlet pipe 4 is arranged horizontally, and a plurality of air outlet holes 5 are provided on the second air inlet pipe 4 along its length.

[0035] That is to say, compared with the air inlet pipe in the prior art, the air inlet pipe of the present invention is additionally provided with a horizontally arranged pipe section, namely, the second air inlet pipe 4, and a plurality of air outlet holes 5 are provided along the length direction of the second air inlet pipe 4. The nitrogen entering the liquid phosphorus oxychloride is discharged from the plurality of air outlet holes 5 and becomes a plurality of small bubbles. Compared with a large bubble, the plurality of small bubbles are more fully mixed with the liquid phosphorus oxychloride. Even when the liquid level of the liquid phosphorus oxychloride is lowered, it is beneficial to fully mix with the liquid phosphorus oxychloride, which is beneficial to ensure the quality of the finished silicon wafers.

[0036] It should be noted that, in actual applications, those skilled in the art may extend the first air intake pipe 3 vertically downward, or may extend the first air intake pipe 3 obliquely downward, etc. Of course, it is preferred to extend the first air intake pipe 3 vertically downward.

[0037] Preferably, if Figure 2 and Figure 3 As shown, a plurality of air outlet holes 5 are arranged along the circumference of the inner bottom wall of the container bottle 1 , and at least two circles of air outlet holes 5 are arranged along the radial direction.

[0038] That is, multiple air outlet holes 5 are arranged along the circumferential direction of the inner bottom wall of the container bottle 1, and multiple air outlet holes 5 are also arranged along the radial direction of the inner bottom wall of the container bottle 1. In this way, the mixing effect with liquid phosphorus oxychloride can be further improved.

[0039] It should be noted that the arrangement of the air outlet 5 is realized by the shape and arrangement of the second air inlet pipe 4 , which will be described in detail below in conjunction with two specific embodiments.

[0040] Example 1

[0041] like Figure 1 and Figure 2 As shown, the solar photovoltaic diffusion source bottle of this embodiment includes a containing bottle 1, an air inlet pipe and an air outlet pipe 2, wherein the air inlet pipe includes a first air inlet pipe 3 and a second air inlet pipe 4, the first air inlet pipe 3 is arranged vertically, the second air inlet pipe 4 is connected to the bottom end of the first air inlet pipe 3, the second air inlet pipe 4 is arranged horizontally, and a plurality of air outlet holes 5 are provided on the second air inlet pipe 4, and the plurality of air outlet holes 5 are spaced apart along the length direction of the second air inlet pipe 4. From a top view, as shown in FIG. Figure 2 As shown, the second air inlet pipe 4 is spiral.

[0042] Exemplarily, the first air inlet pipe 3 is arranged close to the inner wall of the containing bottle 1, preferably in contact with the inner wall of the containing bottle 1, and the second air inlet pipe 4 is spirally arranged inward along the circumferential direction from the edge of the inner bottom wall of the containing bottle 1, that is, one end of the second air inlet pipe 4 is connected to the bottom end of the first air inlet pipe 3, and the other end of the second air inlet pipe 4 extends along a spiral curve toward the center of the inner bottom wall of the containing bottle 1, preferably extending all the way to the center position of the inner bottom wall of the containing bottle 1. In this way, a plurality of air outlet holes 5 are arranged circumferentially on the inner bottom wall of the containing bottle 1, and a plurality of air outlet holes 5 are also arranged radially.

[0043] It should be noted that, in actual applications, those skilled in the art may also arrange the first air inlet pipe 3 close to the center of the containing bottle 1. In this way, the second air inlet pipe 4 may be arranged to spiral outward from the center of the inner bottom wall of the containing bottle 1 along the circumferential direction, that is, the other end of the second air inlet pipe 4 extends along the spiral curve toward the edge of the inner bottom wall of the containing bottle 1. Such flexible adjustment and change does not deviate from the principle and scope of the present utility model and should be limited within the protection scope of the present utility model.

[0044] Preferably, if Figure 2 As shown, the ratio of the area of the inner bottom wall of the accommodating bottle 1 covered by the second air inlet pipe 4 to the total area of the inner bottom wall of the accommodating bottle 1 is greater than 0.6.

[0045] That is to say, more than 60% of the inner bottom wall of the container bottle 1 is covered by the second air inlet pipe 4. The larger the area covered by the second air inlet pipe 4, the more bubbles there are, and the better the mixing with the liquid phosphorus oxychloride.

[0046] For example, the ratio of the area of the inner bottom wall of the accommodating bottle 1 covered by the second air inlet pipe 4 to the total area of the inner bottom wall of the accommodating bottle 1 can be set to 0.65, 0.7, 0.75, 0.8, 0.85, 0.9 or 0.95, etc., and is further preferably set to not less than 0.8.

[0047] Preferably, if Figure 1 As shown, the cross-sectional area of the second air intake pipe 4 is larger than the cross-sectional area of the first air intake pipe 3 .

[0048] By making the cross-sectional area of the second air inlet pipe 4 larger than the cross-sectional area of the first air inlet pipe 3, the flow rate of the gas will slow down after the gas enters the second air inlet pipe 4 from the first air inlet pipe 3, and the rising speed of the bubbles will also slow down, which is conducive to prolonging the mixing time with liquid phosphorus oxychloride, thereby further improving the mixing effect with liquid phosphorus oxychloride.

[0049] Exemplarily, the first air inlet pipe 3 and the second air inlet pipe 4 are both circular tubes, the inner diameter of the first air inlet pipe 3 is 6 cm, and the inner diameter of the second air inlet pipe 4 is 10 cm.

[0050] Preferably, ifFigure 2 As shown, the cross-sectional area of the second intake pipe 4 gradually increases along the gas flow direction.

[0051] By making the cross-sectional area of the second intake pipe 4 gradually increase along the gas flow direction, the gas flow velocity can be further reduced, which is more conducive to extending the mixing time with liquid phosphorus oxychloride, thereby further improving the mixing effect with liquid phosphorus oxychloride.

[0052] Preferably, as Figure 1 and Figure 2 shown, the vertical distance between the second intake pipe 4 and the inner bottom wall of the receiving bottle 1 is not greater than 2.0 mm.

[0053] That is to say, there can be a certain gap between the second intake pipe 4 and the inner bottom wall of the receiving bottle 1. However, this gap is preferably not greater than 2.0 mm. For example, it can be set to 0.5 mm, 1.0 mm, 1.5 mm or 2.0 mm, etc.

[0054] Further preferably, the vertical distance between the second intake pipe 4 and the inner bottom wall of the receiving bottle 1 is zero.

[0055] That is to say, the second intake pipe 4 is in contact with the inner bottom wall of the receiving bottle 1, and there is no gap between the two. In this way, the influence of the liquid level can be minimized.

[0056] It should be noted that although it seems from Figure 2 above that the air outlet 5 is provided on the top surface of the second intake pipe 4 and the air outlet direction of the air outlet 5 is vertically upward, this is not restrictive. For example, in actual applications, those skilled in the art can also set the air outlet 5 on the side surface of the second intake pipe 4, and the air outlet direction of the air outlet 5 is horizontal air outlet. Or, in the case where there is a gap between the second intake pipe 4 and the inner bottom wall of the receiving bottle 1, the air outlet 5 can also be set on the bottom surface of the second intake pipe 4, and the air outlet direction of the air outlet 5 is vertically downward. Or, a circle of spaced air outlets 5 can also be provided along the circumferential direction of the second intake pipe 4, etc. Such adjustments and changes to the specific setting position of the air outlet 5 do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0057] Preferably, as Figure 2 shown, the diameter of the air outlet 5 is 1.0 mm to 3.0 mm.

[0058] That is to say, the air outlet 5 is preferably set as a circular hole. Those skilled in the art can set the diameter of the air outlet 5 to 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm or 3.0 mm, etc. in actual applications. Most preferably, the diameter of the air outlet 5 is 2.0 mm.

[0059] Preferably, as Figure 2 shown, the distance between two adjacent air outlet holes 5 is 5 mm to 100 mm.

[0060] Among them, it is preferred that a plurality of air outlet holes 5 are evenly distributed along the length direction of the second intake pipe 4. In practical applications, those skilled in the art can set the distance between two adjacent air outlet holes 5 to be 5 mm, 10 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm or 100 mm, etc. Further preferably, it is set to 10 mm to 50 mm.

[0061] Preferably, as Figure 1 shown, the solar photovoltaic diffusion source bottle of the present invention further includes a liquid level detection member 6, and the liquid level detection member 6 is used to detect the liquid level in the containing bottle 1.

[0062] Exemplarily, a base 7 is provided below the containing bottle 1, and the liquid level detection member 6 is installed on the base 7. The liquid level detection member 6 can be a photoelectric liquid level sensor or an opposed liquid level sensor, etc.

[0063] Embodiment 2

[0064] As Figure 3 shown, on the basis that other settings in the above Embodiment 1 remain unchanged, the second intake pipe 4 of this embodiment includes a first annular pipe section 41, a second annular pipe section 42, and a connecting pipe section 43 for connecting the first annular pipe section 41 and the second annular pipe section 42. Among them, the first annular pipe section 41 surrounds the outside of the second annular pipe section 42, and the first annular pipe section 41 is communicated with the bottom end of the first intake pipe 3. A plurality of air outlet holes 5 are provided on both the first annular pipe section 41 and the second annular pipe section 42.

[0065] Exemplarily, it can be seen from Figure 3 that the first annular pipe section 41 is located on the outside and is arranged close to the edge of the inner bottom wall of the containing bottle 1. The first annular pipe section 41 is communicated with the bottom end of the first intake pipe 3. The second annular pipe section 42 is located on the inside and is arranged close to the center of the inner bottom wall of the containing bottle 1. Both the first annular pipe section 41 and the second annular pipe section 42 extend along the circumferential direction of the inner bottom wall of the containing bottle 1 and are spaced apart along the radial direction. The connecting pipe section 43 extends along the radial direction to connect the first annular pipe section 41 and the second annular pipe section 42. A plurality of air outlet holes 5 are provided on the first annular pipe section 41, and a plurality of air outlet holes 5 are also provided on the second annular pipe section 42. The gas in the first intake pipe 3 first enters the first annular pipe section 41, a part of the gas is discharged from the air outlet holes 5 on the first annular pipe section 41, and the other part of the gas enters the second annular pipe section 42 along the connecting pipe section 43 and is discharged from the air outlet holes 5 on the second annular pipe section 42.

[0066] It should be noted that those skilled in the art can also directly connect the first intake pipe 3 to the second annular pipe section 42 or connect it to both the first annular pipe section 41 and the second annular pipe section 42 in practical applications. In addition, those skilled in the art can also add more annular pipe sections between the first annular pipe section 41 and the second annular pipe section 42 and / or inside the second annular pipe section 42, and so on. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should all be defined within the protection scope of the present invention.

[0067] In addition, it should also be noted that those skilled in the art can also provide air outlet holes 5 on the connecting pipe section 43.

[0068] Those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present application and forms different embodiments. For example, in the claims of the present application, any one of the claimed embodiments can be used in any combination.

[0069] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A solar photovoltaic diffusion source bottle, characterized in that, The solar photovoltaic diffusion source bottle includes a containing bottle, an air inlet pipe, and an air outlet pipe. Among them, the air inlet pipe includes a first air inlet pipe and a second air inlet pipe. The first air inlet pipe is inserted from the top of the containing bottle and extends towards the inner bottom wall of the containing bottle. The second air inlet pipe is communicated with the bottom end of the first air inlet pipe. The second air inlet pipe is horizontally arranged. A plurality of air outlet holes are arranged at intervals along the length direction of the second air inlet pipe. The plurality of air outlet holes are arranged along the circumferential direction of the inner bottom wall and at least two circles are arranged radially.

2. The solar photovoltaic diffusion source bottle according to claim 1, wherein The cross-sectional area of the second air inlet pipe is larger than the cross-sectional area of the first air inlet pipe.

3. The solar photovoltaic diffusion source bottle according to claim 1, characterized in that, The cross-sectional area of the second air inlet pipe gradually increases along the gas flow direction.

4. The solar photovoltaic diffusion source bottle according to claim 1, characterized in that, The vertical distance between the second air inlet pipe and the inner bottom wall is not greater than 2.0 mm.

5. The solar photovoltaic diffusion source bottle according to claim 4, wherein, The vertical distance between the second air inlet pipe and the inner bottom wall is zero.

6. The solar photovoltaic diffusion source bottle according to claim 1, characterized in that The diameter of the air outlet hole is 1.0 mm to 3.0 mm.

7. The solar photovoltaic diffusion source bottle according to claim 1, wherein The ratio of the area of the inner bottom wall covered by the second air inlet pipe to the total area of the inner bottom wall is greater than 0.

6.

8. The solar photovoltaic diffusion source bottle according to claim 1, wherein The solar photovoltaic diffusion source bottle further includes a liquid level detection member for detecting the liquid level in the containing bottle.

9. The solar photovoltaic diffusion source bottle according to any one of claims 1 to 8, characterized in that, The second air inlet pipe is spiral in a top view; or The second air inlet pipe at least includes a first annular pipe section, a second annular pipe section, and a connecting pipe section for communicating the first annular pipe section and the second annular pipe section. At least one of the first annular pipe section and the second annular pipe section is communicated with the bottom end of the first air inlet pipe. The first annular pipe section surrounds the outside of the second annular pipe section. A plurality of the air outlet holes are arranged on both the first annular pipe section and the second annular pipe section.

10. A solar cell processing device, characterized in that, Including the solar photovoltaic diffusion source bottle according to any one of claims 1 to 9.