A fire-resistant photovoltaic cell

Abstract

This utility model provides a fire-resistant photovoltaic cell, relating to the field of photovoltaic cell technology. It includes a fixed base plate with a support column fixedly installed at its top. By setting up the fixed base plate, support column, and fixed plate structure, this utility model, through the installation of heat dissipation pipes and a water tank structure, can effectively reduce the temperature of the cell in high-temperature environments during equipment use, preventing impact on photoelectric conversion efficiency and effectively preventing cell explosion due to overheating, thus reducing the possibility of damage in the event of a fire. Simultaneously, by setting up a protective cover, it can protect the cell from fire, preventing passive exposure to flames and high temperatures, effectively protecting the cell, avoiding significant economic losses, preventing disruption to the normal operation of the entire photovoltaic power generation system, and avoiding inconvenience to production and daily life.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cell technology, and in particular to a photovoltaic cell with fire-resistant function. Background Technology

[0002] With the increasing popularity and expanding application scale of photovoltaic power generation technology, photovoltaic cells are widely installed in various environments, such as industrial plants, commercial building rooftops, large-scale ground-mounted power stations, and some remote mountainous areas. However, these application scenarios are often not entirely safe and pose numerous fire hazards. In industrial plants, the presence of numerous electrical equipment, flammable and explosive raw materials, or complex production processes can easily lead to fire accidents. Commercial building rooftop photovoltaic systems may also face fire risks due to short circuits or human negligence. In some remote mountainous areas, photovoltaic power stations may face threats from natural disasters such as lightning strikes and wildfires caused by dry weather. Traditional photovoltaic cells have revealed serious shortcomings in addressing these fire hazards.

[0003] However, traditional photovoltaic (PV) cells often focus on improving performance such as photoelectric conversion efficiency, resulting in relatively simple structural designs and a lack of effective fire prevention measures. On one hand, traditional cells have limited heat dissipation capabilities. In high-temperature environments, heat easily accumulates, causing the cell temperature to rise continuously. This not only affects photoelectric conversion efficiency but also, when the temperature exceeds a certain limit, can easily lead to cell malfunctions or even explosions, increasing the risk of fire and the possibility of damage during a fire. On the other hand, traditional PV cells lack corresponding active protection and cooling mechanisms in the face of fire. They can only passively withstand the onslaught of flames and high temperatures, failing to provide effective protection. This makes them vulnerable in fires, causing significant economic losses. Furthermore, subsequent repair and replacement costs are high, and the operation of the entire PV power generation system can be disrupted, causing power outages and numerous inconveniences to production and daily life. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0005] This utility model adopts the following technical solution: a fireproof photovoltaic cell, including a fixed base plate, a support column fixedly installed at the top of the fixed base plate, a fixed plate fixedly installed on the surface of the support column, a cell body fixedly installed at the top of the support column, a fixed block fixedly installed at the top of the fixed base plate, a motor fixedly installed at the top of the fixed block, a rotating rod fixedly installed at the output end of the motor, a pulley fixedly installed on the surface of the rotating rod, a gear fixedly installed at the other end of the rotating rod, an insertion slot through the surface of the fixed plate, grooves at both ends of the fixed plate, a rotating rod second sleeved inside the groove, a protective cover fixedly installed on the surface of the rotating rod second, and a fixed mounting on the surface of the protective cover. The device includes a gear two, a pulley two fixedly mounted on the surface of the protective cover, a belt fitted on the outer surface of the pulley one and pulley two, a water tank fixedly mounted on the top of the fixed base plate, a water inlet pipe fixedly mounted on the surface of the water tank, a water pump fixedly mounted on the surface of the fixed base plate, a delivery pipe one fixedly mounted on the output end one of the water pump, a delivery pipe two fixedly mounted on the output end two of the water pump, a delivery pipe three fixedly mounted on the other end of the delivery pipe two, a placement groove opened inside the protective cover, a heat dissipation pipe fitted inside the placement groove, a return pipe fixedly mounted on one end of the heat dissipation pipe, actuators fixedly mounted on the surfaces of the motor and the water pump, a temperature sensor fixedly mounted on the surface of the protective cover, and a controller fixedly mounted on the surface of the fixed plate.

[0006] Preferably, the other end of the return pipe is connected and fixed to the surface of the water tank, and the other end of the delivery pipe is connected and fixed to the surface of the other end of the radiator pipe. The delivery pipe and the return pipe are telescopic pipes. Here, the connection between the return pipe and the water tank and the connection between the delivery pipe and the radiator pipe ensure that the coolant can form a complete circulation loop between the water tank, the water pump, and the radiator pipe.

[0007] Preferably, the other end of the first delivery pipe is connected and fixed to the surface of the water tank, a flange is fixedly installed on the surface of the inlet pipe, and the heat dissipation pipe is laid flat in an "S" shape inside the placement groove. Here, the connection between the first delivery pipe and the water tank completes the water circulation path of the water tank, so that after the water pump draws water from the water tank and circulates through the heat dissipation pipe, the water can return to the water tank through the first delivery pipe, realizing the circulation and replenishment of water in the water tank.

[0008] Preferably, the protective covers are in two sets and symmetrically distributed at both ends of the battery cell body. Both ends of the fixing plate are semi-circular, and the protective covers have rounded corners near the surface of the fixing plate. Here, the semi-circular shape at both ends of the fixing plate and the rounded corners of the protective covers make the overall structure more aesthetically pleasing and streamlined. Furthermore, they reduce sharp edges, preventing scratches to other components or injuries to personnel during installation and operation, thus improving equipment safety. Moreover, during rotation and other movements of the protective covers, the friction at the rounded corners is relatively low, resulting in smoother movement, reduced component wear, extended equipment lifespan, and easier long-term stable use of the equipment.

[0009] Preferably, there are two sets of rotating rods, symmetrically distributed inside both ends of the fixed plate. Gear 2 is mounted on one set of surfaces of the rotating rods, and pulley 2 is mounted on the other set of surfaces. The surface of gear 1 meshes with the surface of gear 2. Here, the two symmetrically distributed rotating rods allow the protective cover to rotate synchronously and stably at both ends of the battery cell, ensuring uniformity of protection and heat dissipation on both sides. This avoids damage to the protection due to abnormal rotation on one side, keeping the battery cell in a stable working environment, improving the reliability and stability of the equipment, and also facilitating drive control through a unified transmission structure, simplifying the overall mechanical transmission design.

[0010] Preferably, the number of heat dissipation pipes, delivery pipes, and return pipes are all in two sets, symmetrically distributed above the fixed base plate. Both sets of delivery pipes are fitted inside the protective cover. This design, with two sets of delivery pipes fitted inside the protective cover, ensures that the coolant can be stably and accurately delivered to the corresponding heat dissipation pipes. Even during the rotation of the protective cover, the delivery pipes can move in tandem, neither hindering the normal rotation of the protective cover nor hindering the continuous supply of coolant to the heat dissipation pipes. This ensures that the heat dissipation circulation system can still operate normally under complex mechanical motion conditions, maintaining the temperature regulation and fire protection functions of the heat dissipation pipes for the battery cells, making the overall heat dissipation and fire protection functions of the equipment more stable and reliable.

[0011] Preferably, a support frame is fixedly installed at the top of the fixed base plate, a fixed column is fixedly installed at the top of the support frame, a nozzle is fixedly installed at the top of the fixed column, a delivery pipe four is fixedly installed at the bottom of the fixed column, and a delivery pipe five is fixedly installed on the surface of the delivery pipe four. Here, the presence of delivery pipe four and delivery pipe five completes the medium delivery path from the water source to the nozzle, ensuring that fire extinguishing or cooling media such as water can smoothly and stably reach the nozzle position. Furthermore, this pipeline layout facilitates organic integration with the existing water circulation system of the equipment, enabling the various functional components of the entire equipment to work collaboratively in response to abnormal temperatures and fire situations, forming a complete fire prevention and cooling system. This improves the equipment's comprehensive ability to cope with fire risks and ensures the safe operation of photovoltaic cells under complex operating conditions.

[0012] Preferably, the number of support frames and fixing columns is two sets, symmetrically distributed at the top of the fixed base plate. The other end of the fourth conveying pipe is connected and fixed to the other set of fixing columns, and the other end of the fifth conveying pipe is connected and fixed to the surface of the second conveying pipe. The number of nozzles is multiple sets, arrayed at the top of the fixing columns, and the nozzles are atomizing nozzles. Here, the two sets of symmetrically distributed support frames and fixing columns enable the multiple arrays of atomizing nozzles to form a uniform and comprehensive coverage layout above the battery cell. During spray cooling or fire extinguishing operations, it can ensure that the entire battery cell and its surrounding area are evenly sprayed with atomized water and other media, without any spray dead spots. This more effectively achieves cooling and fire extinguishing functions, improves the fire protection effect of the battery cell, and ensures that the battery cell as a whole receives timely and sufficient protection when facing high temperature or fire threats, thereby enhancing the overall fire safety and reliability of the equipment.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, by setting up a fixed base plate, support columns, and a fixed plate structure, and by setting up a heat dissipation pipe and water tank structure, the temperature of the solar cells can be effectively reduced in high-temperature environments, avoiding impact on photoelectric conversion efficiency. Furthermore, it can effectively prevent the solar cells from exploding due to excessive temperature, reducing the possibility of damage in the event of a fire. Simultaneously, by setting up a protective cover, it can protect the solar cells from passive exposure to flames and high temperatures in the event of a fire, effectively protecting them from significant economic losses, preventing disruption to the normal operation of the entire photovoltaic power generation system, and avoiding inconvenience to production and daily life.

[0014] 2. In this utility model, by setting up a support frame, a fixed column, a nozzle, and a delivery pipe (four and five structures), when the equipment is in use, the support frame, fixed column, and nozzle structure allow water or other fire extinguishing or cooling media to be delivered to the nozzle through the delivery pipe when the solar cells face abnormal high temperatures. The nozzle atomizes and sprays the water, covering a large area of ​​the solar cells and their surroundings. Utilizing the principle of water vaporization and heat absorption, the temperature of the solar cells is rapidly reduced, providing emergency cooling and preventing the fire from spreading further. In the event of a fire, the atomized water can effectively extinguish the initial fire and suppress its spread, providing additional fire protection and extinguishing protection for the solar cells. This enhances the overall ability of the photovoltaic solar cells to cope with fire scenarios, maximizing the protection of the solar cells from fire damage and ensuring the safety and continued operation of the equipment. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a fire-resistant photovoltaic cell is provided for this utility model; Figure 2 A schematic diagram of the rear structure of a fire-resistant photovoltaic cell is provided for this utility model. Figure 3 A top view of a fire-resistant photovoltaic cell is provided for this utility model. Figure 4 A bottom view of the structure of a fire-resistant photovoltaic cell proposed in this utility model; Figure 5 This utility model provides an exploded structural diagram of a fire-resistant photovoltaic cell. Figure 6 This invention proposes a fire-resistant photovoltaic cell. Figure 5 Enlarged view of point A in the middle.

[0016] Legend: 1. Fixed base plate; 2. Support column; 3. Fixing plate; 4. Battery cell body; 5. Fixing block; 6. Motor; 7. Rotating rod one; 8. Belt pulley one; 9. Gear one; 10. Insertion slot; 11. Groove; 12. Rotating rod two; 13. Protective cover; 14. Gear two; 15. Belt pulley two; 16. Belt; 17. Water tank; 18. Water inlet pipe; 19. Water pump; 20. Delivery pipe one; 21. Delivery pipe two; 22. Delivery pipe three; 23. Placement slot; 24. Heat dissipation pipe; 25. Return pipe; 26. Actuator; 27. Temperature sensor; 28. Controller; 29. ​​Flange; 30. Support frame; 31. Fixing column; 32. Nozzle; 33. Delivery pipe four; 34. Delivery pipe five. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Example 1 Please see Figures 1-6This utility model provides a technical solution: a fireproof photovoltaic cell, including a fixed base plate 1, a support column 2 fixedly installed at the top of the fixed base plate 1, a fixed plate 3 fixedly installed on the surface of the support column 2, a cell body 4 fixedly installed at the top of the support column 2, a fixed block 5 fixedly installed at the top of the fixed base plate 1, a motor 6 fixedly installed at the top of the fixed block 5, a rotating rod 7 fixedly installed at the output end of the motor 6, a pulley 8 fixedly installed on the surface of the rotating rod 7, a gear 9 fixedly installed at the other end of the rotating rod 7, an insertion slot 10 through the surface of the fixed plate 3, grooves 11 at both ends of the fixed plate 3, a rotating rod 12 fitted inside the grooves 11, and a protective cover fixedly installed on the surface of the rotating rod 12. A gear 14 is fixedly mounted on the surface of a cover 13. A pulley 15 is fixedly mounted on the surface of a cover 13. A belt 16 is fitted onto the outer surface of pulley 18 and pulley 15. A water tank 17 is fixedly mounted on the top of a base plate 1. An inlet pipe 18 is fixedly mounted on the surface of the water tank 17. A water pump 19 is fixedly mounted on the surface of the base plate 1. A delivery pipe 20 is fixedly mounted on one output end of the water pump 19. A delivery pipe 21 is fixedly mounted on the second output end of the water pump 19. A delivery pipe 22 is fixedly mounted on the other end of the delivery pipe 21. A placement groove 23 is opened inside the cover 13. A heat dissipation pipe 24 is fitted inside the placement groove 23. A return pipe 25 is fixedly mounted on one end of the heat dissipation pipe 24. A motor 6 and a water pump 19 are also included. Actuators 26 are fixedly installed on the surface of each part of the device. Temperature sensors 27 are fixedly installed on the surface of the protective cover 13. A controller 28 is fixedly installed on the surface of the mounting plate 3. When the equipment is in use, the temperature sensor 27 first observes the changes in the ambient temperature. In the event of a fire, the temperature sensor 27 senses an increase in the ambient temperature. Subsequently, the temperature sensor 27 monitors the temperature and transmits the signal to the controller 28. The controller 28, based on the temperature signal, directs the actuators 26 on the motor 6 and the water pump 19 to work. Then, the actuators 26 drive the motor 6 to move. Next, the movement of the motor 6 drives the rotating rod 7 to rotate. The rotation of the rotating rod 7 drives the pulley 8 to rotate. Then, the rotation of the pulley 8 drives the belt 16 to move. The belt 16 rotates, causing pulley 15 to rotate. This rotation, in turn, causes gear 9 to rotate via rotating rod 7, which in turn causes gear 14 to rotate. Gear 14 then causes rotating rod 12 to rotate. The rotation of rod 12 and pulley 15, combined with the rotation of the belt 12 and pulley 15, causes the protective cover 13 to rotate, thus closing and protecting the battery cell body 4. Next, actuator 26 activates water pump 19. Water from water tank 17 is then returned to water tank 17 via delivery pipe 20 at output end 1, forming a circulation. Delivery pipes 21 and 22 at output end 2 deliver water to heat dissipation pipe 24. The water in heat dissipation pipe 24 absorbs heat and returns to water tank 17 via return pipe 25.This allows for cooling of the protective casing and the internal battery cell body 4, preventing the battery cells from exploding due to overheating.

[0020] Please see Figures 1-6 The other end of the return pipe 25 is connected and fixed to the surface of the water tank 17. The other end of the delivery pipe 22 is connected and fixed to the other end of the heat dissipation pipe 24. The delivery pipe 22 and the return pipe 25 are telescopic pipes. The other end of the delivery pipe 20 is connected and fixed to the surface of the water tank 17. The surface of the inlet pipe 18 is fixedly installed with a flange 29. The heat dissipation pipe 24 is laid flat in an "S" shape inside the placement slot 23. There are two sets of protective covers 13, which are symmetrically distributed at both ends of the battery cell body 4. The two ends of the fixing plate 3 are semi-circular. The protective cover 13 has rounded corners near the surface of the fixing plate 3. There are two sets of rotating rods 12, which are symmetrically distributed inside both ends of the fixing plate 3. Gear 14 is installed on one set of surfaces of rotating rod 12. Pulley 15 is installed on the other set of surfaces of rotating rod 12. The surface of gear 19 meshes with the surface of gear 14. There are two sets of heat dissipation pipes 24, delivery pipe 22, and return pipe 25, which are fixed at the bottom. The components are symmetrically distributed above plate 1. Two sets of conveying pipes 21 are fitted inside the protective cover 13. There are two sets of support frames 30 and fixed columns 31, which are symmetrically distributed at the top of the fixed base plate 1. The other end of the conveying pipe 33 is connected and fixed to the other set of fixed columns 31. The other end of the conveying pipe 34 is connected and fixed to the surface of the conveying pipe 21. There are multiple sets of nozzles 32, which are arrayed at the top of the fixed columns 31. The nozzles 32 are atomizing nozzles. The accurate connection relationship of the conveying pipes 33 and 34 ensures that water and other media can be reasonably distributed and accurately delivered to each nozzle 32, realizing a stable and effective spraying function. This ensures that the nozzles 32 can work normally at critical moments when cooling or fire extinguishing is required, and spray the atomized water evenly. This allows the fire prevention and cooling function of the equipment to be effectively utilized, better cope with the high temperature and fire risk that the solar cells may face, improve the practicality and safety of the equipment in complex environments, and ensure the normal operation and service life of the photovoltaic cells.

[0021] Example 2 Please see Figures 1-4 A support frame 30 is fixedly installed at the top of the fixed base plate 1. A fixed column 31 is fixedly installed at the top of the support frame 30. A nozzle 32 is fixedly installed at the top of the fixed column 31. A conveying pipe 33 is fixedly installed at the bottom of the fixed column 31. A conveying pipe 34 is fixedly installed on the surface of the conveying pipe 33. When the equipment is in use, the water pump 19 moves to drive the water flow. Then the water flow is sent to the nozzle 32 through the conveying pipe 33 and the conveying pipe 34. The water flow can then be sprayed out to the outside through the nozzle 32 for cooling.

[0022] Working Principle: When the equipment is in use, the temperature sensor 27 first observes changes in the ambient temperature. In the event of a fire, the temperature sensor 27 senses an increase in the ambient temperature. Subsequently, the temperature sensor 27 monitors the temperature and transmits the signal to the controller 28. The controller 28, based on the temperature signal, directs the actuators 26 on the motor 6 and water pump 19 to operate. The actuators 26 then drive the motor 6 to move, which in turn drives the rotating rod 7 to rotate. The rotating rod 7 then drives the pulley 8 to rotate, which in turn drives the belt 16 to move. The belt 16 then drives the pulley 15 to rotate, which in turn drives the gear 9 to rotate. The gear 9 then drives the gear 14 to rotate, which in turn drives the rotating rod 12 to rotate. The device rotates, and then the rotating rod 12 and the pulley 15 rotate to drive the protective cover 13 to rotate, thus closing and protecting the battery cell body 4. Then, the actuator 26 drives the water pump 19 to move. Then, the water in the water tank 17 is transported back to the water tank 17 through the first delivery pipe 20 of the first output end of the water pump 19 to form a circulation. The second delivery pipe 21 and the third delivery pipe 22 of the second output end send the water to the heat dissipation pipe 24. After absorbing heat, the water in the heat dissipation pipe 24 returns to the water tank 17 through the return pipe 25, which can cool down the protective shell and the battery cell body 4 inside, preventing the battery cell from exploding due to excessive temperature. At the same time, the movement of the water pump 19 drives the water flow to move. Then, the water flow is sent to the nozzle 32 through the fourth delivery pipe 33 and the fifth delivery pipe 34, so that the water flow can be sprayed out to the outside through the nozzle 32 to cool the equipment.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fire-resistant photovoltaic cell, comprising a fixed base plate (1), characterized in that: A support column (2) is fixedly installed at the top of the fixed base plate (1). A fixed plate (3) is fixedly installed on the surface of the support column (2). A battery cell body (4) is fixedly installed at the top of the support column (2). A fixed block (5) is fixedly installed at the top of the fixed base plate (1). A motor (6) is fixedly installed at the top of the fixed block (5). A rotating rod (7) is fixedly installed at the output end of the motor (6). A pulley (8) is fixedly installed on the surface of the rotating rod (7). A gear (9) is fixedly installed at the other end of the rotating rod (7). An insertion slot (10) is opened through the surface of the fixed plate (3). Grooves (11) are opened at both ends of the fixed plate (3). A rotating rod (12) is fitted inside the groove (11). A protective cover (13) is fixedly installed on the surface of the rotating rod (12). A gear (14) is fixedly installed on the surface of the protective cover (13). A pulley (15) is fixedly installed on the surface of the protective cover (13). A belt (16) is fitted on the outer surface of the first pulley (8) and the second pulley (15). A water tank (17) is fixedly installed on the top of the fixed base plate (1). An inlet pipe (18) is fixedly installed on the surface of the water tank (17). A water pump (19) is fixedly installed on the surface of the fixed base plate (1). A delivery pipe (20) is fixedly installed on the first output end of the water pump (19). A delivery pipe (21) is fixedly installed on the second output end of the water pump (19). A delivery pipe (22) is fixedly installed on the other end of the delivery pipe (21). A placement groove (23) is opened inside the protective cover (13). A heat dissipation pipe (24) is fitted inside the placement groove (23). A return pipe (25) is fixedly installed on one end of the heat dissipation pipe (24). An actuator (26) is fixedly installed on the surface of the motor (6) and the water pump (19). A temperature sensor (27) is fixedly installed on the surface of the protective cover (13). A controller (28) is fixedly installed on the surface of the fixed plate (3).

2. A fire function photovoltaic cell according to claim 1, wherein: The other end of the return pipe (25) is connected and fixed to the surface of the water tank (17), and the other end of the delivery pipe (22) is connected and fixed to the surface of the other end of the heat dissipation pipe (24). The delivery pipe (22) and the return pipe (25) are telescopic pipes.

3. The photovoltaic cell with fireproof function according to claim 1, characterized in that: The other end of the delivery pipe (20) is connected and fixed to the surface of the water tank (17), and a flange (29) is fixedly installed on the surface of the water inlet pipe (18). The heat dissipation pipe (24) is laid flat in an "S" shape inside the placement groove (23).

4. The photovoltaic cell with fireproof function according to claim 1, characterized in that: The number of the protective cover (13) is two sets and they are symmetrically distributed at both ends of the battery cell body (4). The two ends of the fixing plate (3) are both semi-circular. The protective cover (13) has rounded corners near the surface of the fixing plate (3).

5. The photovoltaic cell with fireproof function according to claim 1, characterized in that: The number of rotating rods (12) is two sets and they are symmetrically distributed inside both ends of the fixed plate (3). Gears (14) are installed on one set of surfaces of rotating rods (12), and pulleys (15) are installed on the other set of surfaces of rotating rods (12). The surface of gear 1 (9) meshes with the surface of gear 2 (14).

6. A fire-resistant photovoltaic cell according to claim 1, characterized in that: The number of heat dissipation pipes (24), three delivery pipes (22), and return pipes (25) are all two sets and are symmetrically distributed above the fixed base plate (1). The two sets of two delivery pipes (21) are both fitted inside the protective cover (13).

7. The fireproof photovoltaic cell according to claim 1, wherein: A support frame (30) is fixedly installed at the top of the fixed base plate (1), a fixed column (31) is fixedly installed at the top of the support frame (30), a nozzle (32) is fixedly installed at the top of the fixed column (31), a four-way conveying pipe (33) is fixedly installed at the bottom of the fixed column (31), and a five-way conveying pipe (34) is fixedly installed on the surface of the four-way conveying pipe (33).

8. A fire function photovoltaic cell as claimed in claim 7, characterized in that: The number of the support frame (30) and the number of the fixed column (31) are two sets and are symmetrically distributed at the top of the fixed base plate (1). The other end of the fourth conveying pipe (33) is connected and fixed to the other set of the fixed column (31). The other end of the fifth conveying pipe (34) is connected and fixed to the surface of the second conveying pipe (21). The number of the nozzles (32) are multiple sets and are arrayed at the top of the fixed column (31). The nozzles (32) are atomizing nozzles.

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