Nozzle for water film device and water film device

Abstract

The utility model belongs to the technical field of solar cell manufacturing, and discloses a nozzle for a water film device and the water film device. A first nozzle channel, a gradually-shrinking channel and a second nozzle channel are arranged in the nozzle, water film liquid can flow out of the nozzle from the second nozzle channel through the first nozzle channel and the gradually-shrinking channel, one end of the gradually-shrinking channel is communicated with the first nozzle channel with the same diameter, and the other end of the gradually-shrinking channel is communicated with the second nozzle channel with the same diameter. And the diameter of the tapered channel is gradually reduced in the direction from the first nozzle channel to the second nozzle channel. Compared with the mode that the first nozzle channel and the second nozzle channel are directly connected, smooth transition is formed between the first nozzle channel and the second nozzle channel due to the arrangement of the reducing channel, the accuracy of the water spraying position can be guaranteed, and liquid can flow out evenly and continuously; therefore, a uniform water film can be formed on the non-treated surface of the solar cell, and the yield and the finished product quality of the solar cell are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell manufacturing, in particular to a nozzle for a water film device and a water film device. Background Art

[0002] In the process of preparing solar cells, there are some process scenarios where only one side of the solar cell needs to be processed, so the non-processed side of the solar cell needs to be protected. For example, in the process of removing the phosphosilicate glass or borosilicate glass on one side of the solar cell, a water film needs to be used to protect the non-processed side of the solar cell.

[0003] However, it is difficult for the existing water film device to form a water film of uniform thickness on the non-treated surface of the solar cell, and a discontinuous water film may be formed on the non-treated surface of the solar cell, resulting in the non-water film area on the non-treated surface of the solar cell being unprotected; in addition, the water film liquid that forms the water film is also prone to leak or fall from the edge of the solar cell due to the uneven thickness of the water film. The water film liquid that leaks or falls into the process treatment tank will dilute the treatment liquid and affect the treatment quality of the treated surface of the solar cell.

[0004] Based on the above, there is an urgent need for a nozzle for a water film device and a water film device to solve the above technical problems. Utility Model Content

[0005] One purpose of the utility model is to provide a nozzle for a water film device, which can discharge water evenly and continuously, so as to form a uniform water film on a solar cell.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A nozzle for a water film device, wherein a first nozzle channel, a tapered channel, and a second nozzle channel are arranged in the nozzle, wherein the first nozzle channel, the tapered channel, and the second nozzle channel are connected in sequence, and the water film liquid can flow out of the nozzle through the first nozzle channel and the tapered channel and the second nozzle channel.

[0008] The diameter of the first nozzle channel is greater than the diameter of the second nozzle channel, one end of the tapered channel is connected to the first nozzle channel with the same diameter, the other end of the tapered channel is connected to the second nozzle channel with the same diameter, and the tapered channel is arranged with a diameter gradually decreasing in a direction from the first nozzle channel to the second nozzle channel.

[0009] Preferably, the tapered channel is a conical channel or a trumpet-shaped channel.

[0010] Preferably, along the direction from the first nozzle channel to the second nozzle channel, the nozzle includes a connecting portion and a water outlet portion, and among the first nozzle channel, the tapered channel and the second nozzle channel, at least a portion of the first nozzle channel is arranged at the connecting portion, at least a portion of the second nozzle channel is arranged at the water outlet portion, and along the direction from the first nozzle channel to the second nozzle channel, the cross-sectional area of ​​the water outlet portion is arranged to gradually decrease.

[0011] Preferably, along the direction from the first nozzle channel to the second nozzle channel, the water outlet portion includes a first section and a second section connected to each other, the tapered channel is located in the first section, at least part of the second nozzle channel is located in the second section, and the wall thickness of the second section is smaller than that of the first section.

[0012] Preferably, an outer surface of the first segment and an outer surface of the second segment are directly connected, and an end of the first segment close to the second segment and an end of the second segment close to the first segment have the same cross-section.

[0013] Preferably, the outer surface roughness of the water outlet portion is 0.1 μm≤Ra≤3.2 μm.

[0014] Another object of the utility model is to provide a water film device that can discharge water evenly and continuously, so as to form a uniform water film on the solar cell.

[0015] The water film device comprises a distributor and the above-mentioned nozzles, at least two of the nozzles are installed on the distributor, and water is evenly distributed and flows into the at least two nozzles connected to the distributor after passing through the distributor.

[0016] Preferably, the distributor comprises an upper shell and a lower shell, an upper accommodating chamber is provided in the upper shell, a lower accommodating chamber is provided in the lower shell, the upper shell and the lower shell are cooperatively connected so that the upper accommodating chamber and the lower accommodating chamber cooperate to form an accommodating chamber; the distributor has a liquid inlet hole connected to the accommodating chamber and a plurality of liquid outlet holes, the liquid inlet hole is connected to the water supply assembly through a liquid inlet pipe, and the nozzle is connected to the liquid outlet hole.

[0017] Preferably, a liquid inlet channel is provided on the upper shell, the liquid inlet channel is formed as the liquid inlet hole, the liquid inlet channel is connected to the lower accommodating chamber, and the lower accommodating chamber is connected to the upper accommodating chamber;

[0018] The lower shell is provided with a liquid outlet channel, the liquid outlet channel is connected to the upper accommodating chamber, and the liquid outlet channel is formed as the liquid outlet hole.

[0019] Preferably, a plurality of liquid outlet holes are arranged side by side on the distributor, plugs are detachably mounted on the liquid outlet holes at the head and / or tail of the row, and the nozzle is mounted on the liquid outlet hole in the middle of the row.

[0020] Beneficial effects in the embodiments of the utility model: in the nozzle, compared with directly connecting the first nozzle channel and the second nozzle channel, a tapered channel is provided to connect the first nozzle channel and the second nozzle channel, so that a smooth transition is formed between the first nozzle channel and the second nozzle channel, which can not only ensure the accuracy of the water spraying position, but also facilitate the uniform and continuous outflow of liquid, thereby forming a uniform water film on the non-treated surface of the solar cell, thereby ensuring the yield rate and finished product quality of the solar cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of an existing nozzle in the prior art;

[0022] Figure 2 It is a partial structural stereogram of the water film device provided in the embodiment of the utility model;

[0023] Figure 3 It is a partial structural front view of the water film device provided in the embodiment of the utility model;

[0024] Figure 4 is along Figure 3 Partial structural internal view of the water film device from a medium AA perspective;

[0025] Figure 5 yes Figure 4 A partial enlarged view of point C in the middle;

[0026] Figure 6 is along Figure 3 Partial structural internal view of the water membrane device from the middle BB perspective;

[0027] Figure 7 It is a partial structural exploded diagram of the water film device provided in the embodiment of the utility model;

[0028] Figure 8 It is a partial structural side view of the water film device provided in the embodiment of the utility model;

[0029] Fig. 9 is along Figure 8 Partial structural interior view of the water membrane device from a medium DD perspective.

[0030] In the figure:

[0031] 001', water inlet channel; 002', water outlet channel; 003', chamfered area;

[0032] 1. Connector; 2. Liquid inlet pipe;

[0033] 3. Distributor; 31. Upper shell; 32. Lower shell; 301. Liquid inlet channel; 302. Lower accommodating chamber; 303. Upper accommodating chamber; 304. Liquid outlet channel;

[0034] 4. nozzle; 41. connecting portion; 411. protruding structure; 42. water outlet; 421. first section; 422. second section; 401. first nozzle channel; 402. tapered channel; 403. second nozzle channel;

[0035] 5. Plug; 6. Sealing ring. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of some embodiments, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] like Figure 1As shown, in the prior art, the existing nozzle has a water inlet channel 001' and a water outlet channel 002' which are connected to each other. The water film liquid enters the existing nozzle through the water inlet channel 001' and flows out from the water outlet channel 002'. Since the water inlet channel 001' and the water outlet channel 002' are directly connected, and there is a large diameter difference between the water inlet channel 001' and the water outlet channel 002', the water film liquid is prone to turbulence when passing through the connection between the water inlet channel 001' and the water outlet channel 002', and further causes the water film liquid to be in a discontinuous state after flowing out of the water outlet channel 002'.

[0041] like Figures 2 to 4 As shown, the water film device provided by the utility model mainly includes a joint 1, a liquid inlet pipe 2, a distributor 3, a nozzle 4 and a plug 5. Among them, the distributor 3 has a liquid inlet hole and a plurality of liquid outlet holes, one end of the liquid inlet pipe 2 is connected to the liquid inlet hole of the distributor 3, and the other end is connected to the water supply component or other water supply structure of the water film device through the joint 1. In some embodiments, the joint 1 is detachably connected to the water supply component or other water supply structure of the water film device to facilitate the replacement and maintenance of the distributor 3, reduce the difficulty and cost of maintaining the water film device, and improve the efficiency of maintenance and cleaning.

[0042] The liquid inlet and multiple liquid outlets of the distributor 3 are connected through the accommodating cavity of the distributor 3, and the water film liquid can flow into the accommodating cavity of the distributor 3 through the above-mentioned joint 1 and the liquid inlet pipe 2, and flow out from the liquid outlet. Multiple liquid outlets are arranged on the bottom surface of the distributor 3, and each liquid outlet is selectively installed with a nozzle 4 or a plug 5. The plug 5 can play the role of blocking the liquid outlet, while the nozzle 4 can play the role of connecting the liquid outlet with the outside world and making the water flow out evenly and continuously, thereby effectively controlling the uniformity of the water film.

[0043] Specifically, Figure 5 As shown, the nozzle 4 is provided with a first nozzle channel 401, a tapered channel 402, and a second nozzle channel 403, and the first nozzle channel 401, the tapered channel 402, and the second nozzle channel 403 are connected in sequence. The first nozzle channel 401 is connected to the liquid outlet, and the water film liquid can flow out of the nozzle 4 through the first nozzle channel 401 and the tapered channel 402 and from the second nozzle channel 403, thereby dripping onto the non-treated surface of the solar cell to form a water film. The diameter of the first nozzle channel 401 is greater than the diameter of the second nozzle channel 403 to improve the position accuracy when spraying water. One end of the tapered channel 402 is connected to the first nozzle channel 401 with the same diameter, and the other end of the tapered channel 402 is connected to the second nozzle channel 403 with the same diameter, and the tapered channel 402 is arranged with a gradually decreasing diameter along the direction from the first nozzle channel 401 to the second nozzle channel 403.

[0044] Compared with directly connecting the first nozzle channel 401 and the second nozzle channel 403, the tapered channel 402 is provided to be connected between the first nozzle channel 401 and the second nozzle channel 403, so that a smooth transition is formed between the first nozzle channel 401 and the second nozzle channel 403, which can not only ensure the accuracy of the water spraying position, but also facilitate the uniform and continuous outflow of liquid, thereby forming a uniform water film on the non-treated surface of the solar cell, thereby ensuring the yield rate and finished product quality of the solar cell.

[0045] Optionally, in some embodiments, the tapered channel 402 is a tapered channel. The side wall surface of the tapered channel is a portion of a conical surface, and the diameter of the tapered channel gradually decreases along the direction from the first nozzle channel 401 to the second nozzle channel 403, so as to achieve a smooth transition between the first nozzle channel 401 and the second nozzle channel 403, so that the water film liquid can flow out or spray out evenly and continuously, ensuring the integrity and continuity of the water film, which is conducive to improving the yield rate and finished product quality of the solar cell.

[0046] Optionally, in some other embodiments, the tapered channel 402 adopts a trumpet-shaped channel. The side wall surface of the trumpet-shaped channel has a continuously changing curvature, and the diameter of the trumpet-shaped channel gradually decreases along the direction from the first nozzle channel 401 to the second nozzle channel 403. The trumpet-shaped channel can also achieve a smooth transition between the first nozzle channel 401 and the second nozzle channel 403, so that the water film liquid can flow out or spray out evenly and continuously, ensuring the integrity and continuity of the water film, which is conducive to improving the yield rate and finished product quality of the solar cell.

[0047] Continue to refer to Figure 5 As shown, along the direction from the first nozzle channel 401 to the second nozzle channel 403, the nozzle 4 includes a connecting portion 41 and a water outlet portion 42, the connecting portion 41 is used to connect the distributor 3, and the water outlet portion 42 is arranged away from the distributor 3. In the first nozzle channel 401, the tapered channel 402 and the second nozzle channel 403, at least part of the first nozzle channel 401 is arranged at the connecting portion 41, at least part of the second nozzle channel 403 is arranged at the water outlet portion 42, and along the direction from the first nozzle channel 401 to the second nozzle channel 403, the cross-sectional area of ​​the water outlet portion 42 is gradually reduced. The tapered cross-sectional area of ​​the water outlet portion 42 can reduce the possibility of liquid accumulation on the outer surface of the water outlet portion 42, and avoid the phenomenon that liquid remains on the outer surface of the water outlet portion 42, resulting in the inability to form a uniform and continuous water film.

[0048] Optionally, along the direction from the first nozzle channel 401 to the second nozzle channel 403, the water outlet portion 42 includes a first section 421 and a second section 422 connected to each other, the tapered channel 402 is located in the first section 421, at least part of the second nozzle channel 403 is located in the second section 422, and the wall thickness of the second section 422 is smaller than that of the first section 421. By forming the second section 422 with a smaller wall thickness, the possibility of liquid accumulation at the outlet of the second nozzle channel 403 can be further reduced, and the effect of preventing liquid from remaining on the outer surface of the water outlet portion 42 can be achieved, which is conducive to forming a uniform and continuous water film, thereby ensuring the yield rate and finished product quality of the solar cell.

[0049] Preferably, the outer surface of the first section 421 and the outer surface of the second section 422 are directly connected, and the end of the first section 421 close to the second section 422 and the end of the second section 422 close to the first section 421 have the same cross section. Specifically, in some embodiments, the outer surface of the first section 421 is a part of the outer circumference of a cone, the outer surface of the second section 422 is a part of the outer circumference of another shape of a cone, and the outer surface of the first section 421 and the outer surface of the second section 422 are directly connected, and the end of the first section 421 close to the second section 422 and the end of the second section 422 close to the first section 421 are both circles of the same size. Of course, in some other embodiments, the outer surface of the first section 421 may be a part of the outer circumference of a cone, the outer surface of the second section 422 may be a cylindrical outer circumference, and the outer surface of the first section 421 and the outer surface of the second section 422 may be directly connected, and the end of the first section 421 close to the second section 422 and the end of the second section 422 close to the first section 421 are both circles of the same size. This direct connection method with the same cross section avoids the gap between the first section 421 and the second section 422, and also avoids the use of the same cross section when the cross section size or shape is different. Figure 1 The chamfered area 003' shown is connected to avoid the possibility of liquid residue at the drop and chamfer, thereby reducing the possibility of liquid accumulation on the outer surface of the water outlet 42 and avoiding the phenomenon of liquid residue on the outer surface of the water outlet 42, resulting in the inability to form a uniform and continuous water film.

[0050] Preferably, in some embodiments, the outer surface roughness of the water outlet 42 is 0.1 μm ≤ Ra ≤ 3.2 μm; preferably 0.8 μm ≤ Ra ≤ 1.6 μm. The smaller the roughness of the outer surface of the water outlet 42, the lower the possibility of liquid accumulation on the outer surface of the water outlet 42, and avoid the phenomenon of liquid remaining on the outer surface of the water outlet 42, which makes it impossible to form a uniform and continuous water film. On the other hand, the roughness of the outer surface of the water outlet 42 should not be too small, otherwise it will lead to an increase in processing costs.

[0051] like Figure 3 , Figure 7As shown, the nozzle 4 and the plug 5 can be detachably installed on the liquid outlet. According to the width or length of the solar cell, the operator can selectively install the nozzle 4 or the plug 5 on the corresponding liquid outlet, so that the water film device can form a water film with a higher utilization rate for solar cells of different sizes. For example, if the cell is wider, the liquid outlets at both ends of the distributor 3 can be installed with nozzles 4 to cover the cell from the width direction. When the cell is narrow, the liquid outlets at both ends of the distributor 3 can be installed with plugs 5 to improve the utilization rate of water and avoid waste. In other words, the multiple liquid outlets on the distributor 3 are arranged side by side, and the plugs 5 are detachably installed on the liquid outlets at the head and tail of the row, and the nozzles 4 are installed on the liquid outlets in the middle of the row. The width of the water film formed by the water film device is determined according to the required water film width on the solar cell. If the required water film width is larger, the plug 5 on the liquid outlet at the head and / or tail of the row can be replaced with the nozzle 4. If the required water film width is smaller, the nozzle 4 on the liquid outlet near the head and / or tail of the row can be replaced with the plug 5.

[0052] Optionally, in some embodiments, the connection part 41 and the liquid outlet are provided with threads to thread the connection part 41 to the distributor 3. Preferably, a protruding structure 411 is further provided at one end of the connection part 41 close to the water outlet 42, and a sealing ring 6 is sleeved on the connection part 41. When the connection part 41 is threadedly connected to the distributor 3, the protruding structure 411 can press the sealing ring 6 against the distributor 3, thereby achieving a sealing effect.

[0053] like Figure 4 , Figure 6 , Figure 8 and Fig. 9 As shown, in a specific embodiment, the accommodating chamber of the distributor 3 includes a lower accommodating chamber 302 and an upper accommodating chamber 303, the lower accommodating chamber 302 and the upper accommodating chamber 303 cooperate to form the accommodating chamber, the lower accommodating chamber 302 is extended along the width direction of the distributor 3, there are multiple upper accommodating chambers 303, and they are spaced apart along the width direction of the distributor 3, the upper accommodating chambers 303 are not connected to each other, all the upper accommodating chambers 303 are connected to the lower accommodating chamber 302, and the setting height of the lower accommodating chamber 302 is lower than the setting height of the upper accommodating chamber 303. The liquid inlet channel 301 is connected to the lower accommodating chamber 302, and the liquid inlet channel 301 is formed as a liquid inlet hole. The upper accommodating chamber 303 is connected to the liquid outlet channel 304, the liquid outlet channel 304 is connected to the nozzle 4, and the liquid outlet channel 304 is formed as a liquid outlet hole. There are multiple liquid outlet channels 304, which are spaced apart along the width direction of the distributor 3. The liquid outlet channels 304 are not connected to each other. Preferably, the number of the liquid outlet channels 304 matches the number of the upper accommodating chambers 303 and they are connected to each other one by one.

[0054] In the distributor 3, the water film liquid flows from the liquid inlet channel 301 into the lower accommodating chamber 302, then flows into each upper accommodating chamber 303, then flows from each upper accommodating chamber 303 into each liquid outlet channel 304 corresponding to each other, and finally flows from each liquid outlet channel 304 into each nozzle 4 corresponding to each other, so that the water film liquid can flow into each nozzle 4 evenly after being divided. In the process of flowing, the water film liquid first accumulates in the lower accommodating chamber 302, and after accumulating to a certain height, it overflows from the lower accommodating chamber 302 into the upper accommodating chamber 303, then flows into the liquid outlet channel 304 through the upper accommodating chamber 303, and finally enters the nozzle 4 for spraying. When the water film liquid is in the lower accommodating chamber 302, it can retain and break bubbles, so that the amount of bubbles entering the liquid outlet channel 304 and the nozzle 4 is reduced, which is conducive to improving the uniformity and continuity of the liquid sprayed by the nozzle 4 and the consistency between different nozzles 4. In addition, the lower accommodating chamber 302 can buffer the water film liquid, preventing the water film liquid from directly impacting the nozzle 4, resulting in unstable flow rate or damage to the nozzle 4, which is beneficial to improving the uniformity, continuity and consistency of the sprayed liquid between different nozzles 4, and is also beneficial to improving the service life of the nozzle 4.

[0055] More specifically, the distributor 3 includes an upper shell 31 and a lower shell 32, the liquid inlet channel 301 and the upper accommodating chamber 303 are arranged in the upper shell 31, and the liquid outlet channel 304 and the lower accommodating chamber 302 are arranged in the lower shell 32, and the upper shell 31 and the lower shell 32 are detachably connected to facilitate cleaning and maintenance of the accommodating chamber and the liquid inlet channel 301 and the liquid outlet channel 304 of the distributor 3.

[0056] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A nozzle for a water film device, characterized in that: A first nozzle channel (401), a tapered channel (402) and a second nozzle channel (403) are arranged in the nozzle (4); the first nozzle channel (401), the tapered channel (402) and the second nozzle channel (403) are arranged in sequence to be connected; the water film liquid can flow out of the nozzle (4) through the first nozzle channel (401) and the tapered channel (402) and from the second nozzle channel (403); The diameter of the first nozzle channel (401) is greater than the diameter of the second nozzle channel (403), one end of the tapered channel (402) is connected to the first nozzle channel (401) with the same diameter, the other end of the tapered channel (402) is connected to the second nozzle channel (403) with the same diameter, and the tapered channel (402) is arranged with its diameter gradually decreasing in a direction from the first nozzle channel (401) to the second nozzle channel (403).

2. The nozzle according to claim 1, characterized in that The tapered channel (402) is a conical channel or a trumpet-shaped channel.

3. The nozzle according to claim 1, characterized in that Along the direction from the first nozzle channel (401) to the second nozzle channel (403), the nozzle (4) comprises a connecting portion (41) and a water outlet portion (42); in the first nozzle channel (401), the tapered channel (402) and the second nozzle channel (403), at least a portion of the first nozzle channel (401) is arranged at the connecting portion (41), at least a portion of the second nozzle channel (403) is arranged at the water outlet portion (42), and along the direction from the first nozzle channel (401) to the second nozzle channel (403), the cross-sectional area of ​​the water outlet portion (42) is arranged to gradually decrease.

4. The nozzle according to claim 3, characterized in that Along the direction from the first nozzle channel (401) to the second nozzle channel (403), the water outlet portion (42) comprises a first section (421) and a second section (422) connected to each other, the tapered channel (402) is located in the first section (421), at least part of the second nozzle channel (403) is located in the second section (422), and the wall thickness of the second section (422) is smaller than that of the first section (421).

5. The nozzle according to claim 4, characterized in that The outer surface of the first section (421) and the outer surface of the second section (422) are directly connected, and an end of the first section (421) close to the second section (422) and an end of the second section (422) close to the first section (421) have the same cross-section.

6. The nozzle according to claim 3, characterized in that The outer surface roughness of the water outlet portion (42) is 0.1 μm≤Ra≤3.2 μm.

7. A water film device, characterized in that: It comprises a distributor (3) and a nozzle (4) as described in any one of claims 1 to 6, at least two of the nozzles (4) are installed on the distributor (3), and the water film liquid is evenly distributed after passing through the distributor (3) and flows into the at least two nozzles (4) connected to the distributor (3).

8. The water membrane device according to claim 7, characterized in that: The dispenser (3) comprises an upper shell (31) and a lower shell (32); an upper accommodating chamber (303) is provided in the upper shell (31), and a lower accommodating chamber (302) is provided in the lower shell (32); the upper shell (31) and the lower shell (32) are connected in a cooperative manner so that the upper accommodating chamber (303) and the lower accommodating chamber (302) cooperate to form an accommodating chamber; The distributor (3) has a liquid inlet hole connected to the accommodating cavity and a plurality of liquid outlet holes, the liquid inlet hole is connected to the water supply component via a liquid inlet pipe (2), and the nozzle (4) is connected to the liquid outlet hole.

9. The water film device according to claim 8, characterized in that: The upper shell (31) is provided with a liquid inlet channel (301), the liquid inlet channel (301) is formed as the liquid inlet hole, the liquid inlet channel (301) is connected to the lower accommodating chamber (302), and the lower accommodating chamber (302) is connected to the upper accommodating chamber (303); The lower shell (32) is provided with a liquid outlet channel (304), the liquid outlet channel (304) is connected to the upper accommodating chamber (303), and the liquid outlet channel (304) is formed as the liquid outlet hole.

10. The water membrane device according to claim 7, characterized in that: The distributor (3) is provided with a plurality of liquid outlet holes arranged side by side, the liquid outlet holes at the head and / or tail of the row are detachably provided with plugs (5), and the liquid outlet holes in the middle of the row are provided with the nozzles (4).

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