Multi-head double-fluid anti-blocking spray rod

Abstract

The multi-head double-fluid anti-blocking spray rod comprises a pipeline assembly, the pipeline assembly comprises a pipe body, and a first flow channel and a second flow channel which are independent of each other are arranged in the pipe body; the container type atomizing nozzle assembly comprises a valve body and a plurality of atomizing nozzles, one end of the valve body is inserted into the pipe body, the end, located on the outer side of the pipe body, of the valve body is provided with a plurality of assembling grooves for the atomizing nozzles to be assembled one by one, and a first communicating channel communicating with the first flow channel is formed in the valve body; a first fluid supply channel communicating with the first communicating channel and a second fluid supply channel communicating with the second flow channel are arranged on the side wall of each assembling groove. The multi-point multi-angle air-assisted atomization device has the advantages that multi-point multi-angle air-assisted atomization coverage is achieved, and the spray cooling capacity is effectively improved; meanwhile, the valve body and the pipe body are connected in an inserted mode, the overall structure is compact, the size is small, the weight is light, and installation and use are convenient.

Description

Technical Field

[0001] This application relates to the technical field of dual-fluid atomizing spray bars, and in particular to a multi-head dual-fluid anti-clogging spray bar. Background Technology

[0002] Spray cooling technology is widely used in industrial cooling, dust removal, spraying, and agricultural irrigation. The core component of a spray device is the spray bar, whose performance directly determines the atomization effect and cooling efficiency. In existing technologies, such as the patent document with authorization announcement number CN113617545B, an anti-clogging spray bar is disclosed. This bar employs a single-fluid structure and uses a clearing rod and clearing needle to achieve online cleaning of the flow channel and spray holes, thus solving the clogging problem caused by impurity accumulation during spraying to some extent. However, the spray section of this spray bar only has a single row of spray holes, resulting in limited spray coverage. A single layer of spray is insufficient to meet the cooling requirements of high-heat scenarios.

[0003] In practical applications, when customers request increased cooling capacity, it is usually necessary to increase the number of spray layers to expand the cooling coverage area. While simply stacking the aforementioned single-row spray booms in two rows can achieve double-layer spraying, it presents the following problems: First, the stacking structure significantly increases the overall size and weight, making the spray boom bulky and inconvenient to operate, especially in scenarios requiring manual hand-held or cantilever installation, resulting in a poor user experience. Second, a dual-fluid spray system requires the simultaneous arrangement of both gas and liquid flow paths. Relying solely on stacking leads to complex gas and liquid path layouts, making it difficult to guarantee sealing, requiring high processing precision, and increasing manufacturing difficulty and cost. Third, the stacking structure increases the overall height of the spray boom, making it difficult to adapt to space-constrained installation environments.

[0004] Therefore, how to achieve effective coverage of multi-layer spraying while ensuring that the spray bar has anti-clogging function, and at the same time control the overall volume and weight, simplify the gas-liquid flow path structure, and reduce the difficulty of processing and assembly, has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] To address the aforementioned technical issues, this application provides a multi-head dual-fluid anti-clogging spray boom, which achieves multi-point, multi-angle air-assisted atomization coverage, effectively improving spray cooling capacity. Simultaneously, the valve body and pipe body employ a plug-in structure, resulting in a compact overall structure, small size, light weight, and ease of installation and use.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A multi-head dual-fluid anti-clogging spray bar includes a pipe assembly, the pipe assembly including a pipe body, and the pipe body is provided with a first flow channel and a second flow channel that are independent of each other. A cartridge-type atomizing nozzle assembly includes a valve body and several atomizing nozzles. One end of the valve body is inserted into a tube. The valve body has several assembly slots on its outer side for assembling the atomizing nozzles. The valve body has a first connecting channel communicating with a first flow channel. Each assembly slot has a first fluid supply channel communicating with the first connecting channel and a second fluid supply channel communicating with a second flow channel on its sidewall. The first fluid supply channel is used to supply liquid in the first flow channel into the atomizing nozzle through the first connecting channel. The second fluid channel is used to supply gas in the second flow channel into the atomizing nozzle.

[0007] To achieve the above technical solution, a combined structure of a pipeline assembly and a cartridge-type atomizing nozzle assembly is adopted. The pipeline assembly has independent first (liquid) and second (gas) channels, respectively transporting liquid and gaseous media. One end of the valve body is inserted into the pipe body, and the other end integrates multiple assembly slots, each housing an atomizing nozzle. The first connecting channel inside the valve body distributes the liquid from the first channel to each first fluid supply channel, while the gas from the second channel is independently supplied to each atomizing nozzle through the second fluid supply channel. Thus, multiple atomizing nozzles share a single valve body and a single pipe body, achieving separate gas-liquid transport and simultaneous multi-point spraying. By integrating multiple atomizing nozzles onto the same valve body, forming a cartridge structure, multi-point, multi-angle air-assisted atomization coverage is achieved, effectively improving spray cooling capacity. Furthermore, the valve body and pipe body use a plug-in structure, resulting in a compact overall structure, small size, and light weight, facilitating installation and use. The independently configured first and second channels ensure the stability and controllability of the gas-liquid transport.

[0008] As a preferred embodiment of this application, the atomizing nozzle includes a nozzle, an air cap sleeved on the nozzle, a pressure cap for locking the nozzle and the air cap in an assembly groove, and an opening and closing component for opening and closing the nozzle. The nozzle end is provided with a water spray port, the air cap is provided with a steam spray port, and the steam spray port is located on the side of the water spray port; The nozzle is provided with a fluid channel communicating with the first fluid supply channel, and the gas cap is provided with a gas channel communicating with the second fluid supply channel.

[0009] To achieve the above technical solution, the atomizing nozzle consists of a nozzle, an air cap, a pressure cap, and an opening and closing mechanism. A water spray nozzle is located at the end of the nozzle, and the air cap is fitted onto the nozzle with its steam spray nozzle located to the side of the water spray nozzle, forming an "air-encased liquid" air-assisted atomization structure. When the liquid is ejected from the nozzle, the high-speed lateral airflow shears and breaks up the liquid column, refining the droplets into tiny particles. The pressure cap locks the nozzle and air cap in the assembly groove, ensuring sealing and positioning. The opening and closing mechanism controls the on / off state of the nozzle. The air-assisted atomization structure significantly improves the atomization fineness and uniformity, enhancing the cooling coverage area. The opening and closing mechanism allows each atomizing nozzle to be independently controlled, facilitating selective opening based on heat load changes, resulting in energy savings and flexibility. The pressure cap locking mechanism facilitates easy disassembly and maintenance.

[0010] As a preferred embodiment of this application, the fluid channel includes a third flow channel communicating with the spray nozzle, and the nozzle sidewall is provided with a water inlet communicating with the third flow channel. When the spray nozzle is installed in the assembly groove, the water inlet is arranged opposite to and communicates with the outlet of the first communicating channel.

[0011] To achieve the above technical solution, the fluid channel within the nozzle includes a third flow channel communicating with the spray nozzle, and an inlet is provided on the side wall of the nozzle. After the nozzle is installed in the assembly slot, the inlet is opposite to and communicates with the outlet of the first fluid supply channel. Liquid flows through the first fluid supply channel, the inlet, and the third flow channel, finally exiting from the spray nozzle. The lateral water inlet structure avoids complex sealing connections on the axial end face of the nozzle, simplifies the flow path connection between the nozzle and the valve body, reduces machining accuracy requirements, and ensures smooth liquid supply.

[0012] As a preferred embodiment of this application, multiple water inlets are provided at equal intervals along the circumferential direction of the nozzle sidewall, and a first sealing ring is provided on both the upper and lower sides of each of the water inlets, with a water inlet section formed between two first sealing rings.

[0013] The above technical solution enables non-directional installation of the nozzle, eliminating the need for manual angle alignment during assembly, greatly simplifying the installation process and improving production and maintenance efficiency; multiple circumferential inlets ensure redundancy in liquid supply, and even if some inlets are partially blocked by impurities, the remaining inlets can still work normally, enhancing the anti-clogging capability.

[0014] As a preferred embodiment of this application, the gas channel includes a fourth flow channel communicating with the jet nozzle, and the bottom wall of the gas cap is provided with an air inlet communicating with the fourth flow channel. The air inlet is disposed opposite to and communicates with the second fluid supply channel.

[0015] To achieve the above technical solution, gas is introduced from the bottom of the gas cap, which has a short path and low flow resistance, ensuring a stable supply of high-speed airflow; the bottom air intake structure facilitates docking with the second fluid supply channel on the valve body, ensuring high sealing reliability and preventing gas leakage.

[0016] As a preferred embodiment of this application, the opening and closing element includes a valve needle and an elastic element for driving the valve needle to insert into the nozzle. The valve needle includes a valve body inserted into a third flow channel. One end of the valve body is provided with a valve head for blocking the nozzle, and the other end is provided with a plugging head for blocking the third flow channel. The plugging head is provided with a valve cap located outside the nozzle. The valve cap is provided with a second sealing ring around its periphery for forming a seal with the mounting groove. A buffer space is provided between the valve cap and the nozzle. The valve body is provided with an opening and closing air passage for connecting the second flow channel and the buffer space. The valve body is provided with a plugging element for blocking the opening and closing air passage.

[0017] The above technical solution allows the high-pressure gas in the second flow channel to enter the buffer space through the opening and closing air path. This causes the valve cap to overcome the elastic force of the elastic element and move away from the nozzle under the action of the high-pressure gas in the buffer space, thus causing the sealing head to detach from the nozzle and open, achieving startup. When it is necessary to close the atomizing nozzle, only the sealing element needs to be controlled. Utilizing the spray system's own air source as the driving force, no additional electrical or hydraulic control components are required, resulting in a simple structure and low cost. Independent control of a single atomizing nozzle is possible with rapid response. The elastic element ensures automatic closure in case of air loss, providing fail-safe characteristics.

[0018] As a preferred embodiment of this application, the sealing element is configured as a sealing screw screwed onto the valve body, with one end of the sealing screw extending into the opening and closing air passage.

[0019] The above technical solution is achieved by using a simple and easy-to-operate sealing screw that can be manually controlled without special tools. The fine control of the air flow can be achieved through thread adjustment, thereby adjusting the valve needle opening speed and spray opening and closing response time to meet the needs of different working conditions.

[0020] As a preferred embodiment of this application, the valve body includes a connecting part inserted into the pipe body and a mounting part located outside the pipe body. A connecting ring extending into the second flow channel is provided on the connecting part. The port of the second fluid supply channel is provided on the connecting ring, and the inlet of the opening and closing air passage is provided on the connecting ring.

[0021] To achieve the above technical solution, the connecting ring structure enables precise docking of the gas flow channels between the valve body and the pipe body, avoiding complex sealing and positioning structures. At the same time, it enhances the installation stability of the valve body in the pipe body, prevents loosening or deflection, and ensures the reliability of gas circuit connection.

[0022] As a preferred embodiment of this application, the pipe body includes an inner pipe and an outer pipe sleeved on the inner pipe. The inner pipe forms a first flow channel, and a second flow channel is formed between the inner pipe and the outer pipe. The inner pipe is provided with a water inlet extending out of the outer pipe, and the outer pipe is provided with an air inlet.

[0023] To achieve the above technical solution, the coaxial sleeve structure realizes the integrated and coaxial arrangement of the gas-liquid flow channels, which greatly reduces the radial dimension and overall volume of the pipeline components, making the spray bar more compact and lightweight. The water inlet and air inlet are located at opposite ends or on the side, which facilitates pipeline connection and wiring, and is especially suitable for installation environments with limited space.

[0024] As a preferred embodiment of this application, a plurality of the atomizing shower heads are arranged at intervals along the periphery of the first connecting channel and are inclined relative to the axial direction of the first connecting channel.

[0025] To achieve the above technical solution, the inclined arrangement reduces the processing difficulty of the internal flow path of the valve body, and can be achieved by a simple drilling process, without the need for complex multi-axis cross holes, thus reducing manufacturing costs; at the same time, the inclined spraying causes the droplets of each atomizing nozzle to form cross coverage in space, improving cooling uniformity and avoiding spray blind spots.

[0026] As a preferred embodiment of this application, the valve head end is provided with a clearing needle, the diameter of which is smaller than the diameter of the spray nozzle.

[0027] To achieve the above technical solution, a clearing needle with a diameter smaller than the nozzle diameter is installed at the end of the valve head. When the opening and closing mechanism operates, the valve needle reciprocates: when opening, the valve head disengages from the nozzle; when closing, the valve head inserts into the nozzle. During this process, the clearing needle moves with the valve head, passing through the nozzle each time it closes, physically pushing away or breaking up the tiny impurity particles accumulated at the nozzle. Integrating the clearing function into the opening and closing action eliminates the need for additional operation or external tools, achieving an online anti-clogging mechanism of "clearing clogs with every closure." This effectively solves the industry problem of easy clogging of tiny nozzles, significantly reduces the frequency of manual maintenance, and extends the continuous service life of the spray bar, making it particularly suitable for operating conditions with poor water quality or long-term operation.

[0028] In summary, this application includes at least one of the following beneficial technical effects: 1. By integrating multiple atomizing nozzles onto the same valve body to form a modular structure, multi-point, multi-angle air-assisted atomization coverage is achieved, effectively improving the spray cooling capacity. Simultaneously, the valve body and pipe body employ a plug-in connection structure, resulting in a compact overall structure that is small in size and lightweight, facilitating installation and use. Independently designed first and second flow channels ensure the stability and controllability of the gas-liquid delivery. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0031] Figure 2 This is a sectional view of an embodiment of this application.

[0032] Figure 3 This is a schematic diagram of the structure of the cartridge-type atomizing nozzle assembly in the embodiments of this application.

[0033] Figure 4 This is a cross-sectional view of the cartridge-type atomizing nozzle assembly in an embodiment of this application.

[0034] Figure 5 This is a sectional view of the cartridge-type atomizing nozzle assembly in an embodiment of this application.

[0035] Figure 6 This is a schematic diagram of the structure of the atomizing shower head in the embodiment of this application.

[0036] Figure 7 This is a cross-sectional view of the atomizing shower head in an embodiment of this application.

[0037] Figure 8 This is an exploded view of the atomizing shower head in the embodiment of this application.

[0038] Reference numerals: 100, Pipe assembly; 110, Pipe body; 101, First flow channel; 102, Second flow channel; 111, Inner pipe; 112, Outer pipe; 1111, Water inlet pipe; 1121, Air inlet pipe; 200, Cartridge-type atomizing nozzle assembly; 210, Valve body; 211, Connecting part; 212, Mounting part; 2121, Assembly groove; 213, Connecting ring; 214, First connecting channel; 2141, First inlet; 215, First fluid supply channel; 216, Second fluid supply channel; 220, Atomizing nozzle; 221, Nozzle; 2211, Spray nozzle; 2212 2213. Fluid channel; 2214. Third flow channel; 2215. Water inlet; 2216. First sealing ring; 2217. Water inlet; 222. Air cap; 2221. Steam nozzle; 2222. Gas channel; 2223. Fourth flow channel; 2224. Air inlet; 223. Pressure cap; 224. Opening and closing element; 2241. Valve needle; 2242. Elastic element; 2243. Valve body; 2244. Valve head; 2245. Sealing head; 2246. Valve cap; 2247. Second sealing ring; 2248. Buffer space; 217. Opening and closing air passage; 218. Sealing element; 2249. Unblocking needle. Detailed Implementation

[0039] The present application will be further described in detail below with reference to the accompanying drawings.

[0040] like Figures 1 to 8As shown, this embodiment provides a multi-head dual-fluid anti-clogging spray bar, which includes a pipe assembly 100 and a cartridge atomizing nozzle assembly 200.

[0041] The pipeline assembly 100 includes a pipe body 110, within which are disposed an independent first flow channel 101 and a second flow channel 102. In this embodiment, the pipe body 110 adopts a structure in which an inner pipe 111 and an outer pipe 112 are coaxially fitted. The first flow channel 101 is formed inside the inner pipe 111 for transporting liquid; the second flow channel 102 is formed between the inner pipe 111 and the outer pipe 112 for transporting gas. One end of the inner pipe 111 extends out of the outer pipe 112 and is provided with a water inlet pipe 1111 for connecting to an external liquid supply system; an air inlet pipe 1121 is provided on the outer pipe 112 for connecting to an external gas supply system. Through the above structure, independent gas and liquid transport is achieved, avoiding mutual interference, and the overall structure is compact.

[0042] See Figure 2 and Figure 3 The cartridge-type atomizing nozzle assembly 200 includes a valve body 210 and several atomizing nozzles 220. One end of the valve body 210 is inserted into the tube 110, and the other end is located outside the tube 110. Specifically, the valve body 210 includes a connecting part 211 and a mounting part 212. The connecting part 211 is inserted into the outer tube 112, and a connecting ring 213 is provided on the connecting part 211. The connecting ring 213 extends into the second flow channel 102 for gas introduction. The mounting part 212 is located outside the outer tube 112, and several mounting slots 2121 are formed on its periphery for correspondingly mounting the atomizing nozzles 220.

[0043] The valve body 210 has a first connecting channel 214 inside, which is connected to the first flow channel 101. The inner tube portion of the valve body 210 has several first inlets 2141 connected to the first connecting channel 214. Each assembly slot 2121 has a first fluid supply channel 215 and a second fluid supply channel 216 on its side wall. The first fluid supply channel 215 is connected to the first connecting channel 214 and is used to transport liquid in the first flow channel 101 to the atomizing nozzle 220. The second fluid supply channel 216 is connected to the connecting ring 213 and then to the second flow channel 102, and is used to transport gas to the atomizing nozzle 220.

[0044] Preferably, a plurality of atomizing nozzles 220 are arranged at equal intervals along the periphery of the first connecting channel 214, and each atomizing nozzle 220 is inclined relative to the axial direction of the first connecting channel 214. This inclined arrangement facilitates the machining of gas-liquid flow paths such as the first fluid supply channel 215 and the second fluid supply channel 216 inside the valve body 210, avoids flow path intersection interference, and reduces machining difficulty.

[0045] See Figure 4The atomizing nozzle 220 includes a nozzle 221, an air cap 222, a pressure cap 223, and an opening and closing element 224. The nozzle 221 has a water spray nozzle 2211 at its end. The air cap 222 is fitted onto the nozzle 221 and has a steam spray nozzle 2221 located on the side of the water spray nozzle 2211, forming an air-assisted atomization structure that improves atomization fineness and coverage. The pressure cap 223 is threaded into the mounting groove 2121, locking the nozzle 221 and air cap 222 securely within the mounting groove 2121.

[0046] The nozzle 221 has a fluid channel 2212 inside, which includes a third flow channel 2213 communicating with the spray nozzle 2211. The nozzle 221 has an inlet 2214 communicating with the third flow channel 2213 on its side wall. When the nozzle 221 is installed in the assembly groove 2121, the inlet 2214 is opposite to and communicates with the outlet of the first fluid supply channel 215 to realize liquid supply.

[0047] As a preferred embodiment, multiple inlets 2214 are evenly spaced along the circumferential sidewall of the nozzle 221, and first sealing rings 2215 are provided on both the upper and lower sides of several inlets 2214, forming an inlet portion 2216 between two first sealing rings 2215. This structure eliminates the need to adjust the circumferential angle of the nozzle 221 during installation. Simply inserting the nozzle 221 into the assembly groove 2121 causes the outlet of the first fluid supply channel 215 to correspond to the inlet portion 2216, thereby connecting with any inlet 2214, greatly simplifying the assembly process and improving installation efficiency.

[0048] The gas cap 222 has a gas channel 2222 inside, which includes a fourth flow channel 2223 communicating with the steam injection port 2221. The bottom wall of the gas cap 222 has an air inlet 2224 communicating with the fourth flow channel 2223. When the gas cap 222 is installed in place, the air inlet 2224 is positioned opposite to and communicates with the second fluid supply channel 216 to realize gas delivery.

[0049] See Figure 5 The opening / closing element 224 includes a valve needle 2241 and an elastic element 2242 (in this embodiment, a spring) for driving the valve needle 2241 into the nozzle 221. The valve needle 2241 includes a valve body 2243, which is inserted into the third flow channel 2213. One end of the valve body 2243 is provided with a valve head 2244 for blocking the spray nozzle 2211, and the other end is provided with a sealing head 2245 for blocking the third flow channel 2213. A valve cap 2246 located outside the nozzle 221 is provided on the sealing head 2245, and a second sealing ring 2247 is provided on the periphery of the valve cap 2246 for forming a seal with the assembly groove 2121. A buffer space 2248 is provided between the valve cap 2246 and the nozzle 221.

[0050] The valve body 210 is provided with an opening and closing air passage 217. One end of the opening and closing air passage 217 is connected to the second flow channel 102 (the inlet of the opening and closing air passage is located on the connecting ring), and the other end is connected to the buffer space 2248. The valve body 210 is also provided with a sealing element 218 for sealing the opening and closing air passage 217. In this embodiment, the sealing element 218 is preferably a sealing screw screwed on the valve body 210, with one end extending into the opening and closing air passage 217. When the sealing screw is tightened, the opening and closing air passage 217 is closed; when the sealing screw is loosened or unscrewed, the opening and closing air passage 217 is opened.

[0051] During normal spraying, loosening the sealing screw allows high-pressure gas in the second flow channel 102 to enter the buffer space 2248 via the opening / closing air passage 217. Under the action of the high-pressure gas, the valve cap 2246 overcomes the elastic force of the elastic element 2242 and moves away from the nozzle 221. The valve head 2244 disengages from the spray nozzle 2211, thereby opening the nozzle 221. Liquid is sprayed out through the spray nozzle 2211, and gas is sprayed out through the steam nozzle 2221, achieving atomization. To ensure that the valve needle 2241 can be pushed down normally by the high-pressure gas, a pressure relief hole 219 communicating with the outside is provided on the bottom wall of the equipment slot 2121 on the side of the valve cap 2246 away from the valve head 2244, to ensure that the valve needle will not be unable to be pushed due to the high-pressure gas at the bottom. When it is necessary to stop the spraying of the atomizing nozzle 220, tightening the sealing screw cuts off the air passage. The elastic element 2242 pushes the valve needle 2241 back to its original position, and the valve head 2244 re-seals the spray nozzle 2211, achieving reliable shut-off. This structure allows for independent control of a single atomizing nozzle 220 without the need for complex external valves, and features a compact design and rapid response.

[0052] As a further improvement, the end of the valve head 2244 is also provided with a clearing needle 2249, the diameter of which is smaller than the diameter of the nozzle 2211. When the nozzle 2211 is slightly blocked, the clearing needle 2249 can be inserted into the nozzle 2211 to clear the blockage through the reciprocating motion of the valve needle 2241 during the opening and closing process, effectively preventing blockage, improving the reliability of the spray bar, and reducing the maintenance frequency.

[0053] In addition, a sealing structure, such as an O-ring, is provided between the valve body 210 and the pipe body 110 to ensure the sealing of the gas and liquid circuits at the connection. The mounting part 212 of the valve body 210 may be provided with anti-slip texture or a wrench position for easy installation and disassembly.

[0054] This embodiment of the multi-head dual-fluid anti-clogging spray boom integrates multiple atomizing nozzles into a single valve body and employs a separate air and liquid path design, achieving multi-layer, multi-angle spray coverage. Simultaneously, it is compact, lightweight, and easy to manufacture and assemble, making it particularly suitable for space-constrained scenarios with high cooling requirements. The coordinated design of the opening and closing components and the unclogging needle further enhances the anti-clogging capability, ensuring long-term stable operation.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-head dual-fluid anti-clogging spray bar, characterized in that: It includes a pipe assembly (100), which includes a pipe body (110) and a second flow channel (102) that are independent of each other. A cartridge-type atomizing nozzle assembly (200) includes a valve body (210) and a plurality of atomizing nozzles (220). One end of the valve body (210) is inserted into a tube body (110). The valve body (210) located outside the tube body (110) has a plurality of assembly slots (2121) for assembling the atomizing nozzles (220). The valve body (210) has a first connecting channel (214) communicating with a first flow channel (101). Each of the atomizing nozzles... The side wall of the assembly slot (2121) is provided with a first fluid supply channel (215) communicating with the first connecting channel (214) and a second fluid supply channel (216) communicating with the second flow channel (102). The first fluid supply channel (215) is used to supply the liquid in the first flow channel (101) into the atomizing nozzle (220) through the first connecting channel (214). The second fluid channel (2212) is used to supply the gas in the second flow channel (102) into the atomizing nozzle (220).

2. The multi-head dual-fluid anti-clogging spray bar according to claim 1, characterized in that: The atomizing nozzle (220) includes a nozzle (221), an air cap (222) fitted on the nozzle (221), a pressure cap (223) for locking the nozzle (221) and the air cap (222) in the assembly groove (2121), and an opening and closing component (224) for opening and closing the nozzle (221); The nozzle (221) is provided with a water spray port (2211) at its end, and the air cap (222) is provided with a steam spray port (2221), which is located on the side of the water spray port (2211). The nozzle (221) is provided with a fluid channel (2212) communicating with the first fluid supply channel (215), and the gas cap (222) is provided with a gas channel (2222) communicating with the second fluid supply channel (216).

3. The multi-head dual-fluid anti-clogging spray bar according to claim 1, characterized in that: The fluid channel (2212) includes a third flow channel (2213) communicating with the water nozzle (2211). The nozzle (221) has an inlet (2214) communicating with the third flow channel (2213) on its side wall. When the water spray is installed in the assembly groove (2121), the inlet (2214) is opposite to and communicates with the outlet of the first communication channel (214).

4. A multi-head dual-fluid anti-clogging spray bar according to claim 1, characterized in that: The water inlet (2214) is provided with multiple inlets at equal intervals along the circumferential direction of the nozzle (221) sidewall. Each of the water inlets (2214) is provided with a first sealing ring (2215) on both the upper and lower sides, and a water inlet (2216) is formed between two first sealing rings (2215).

5. A multi-head dual-fluid anti-clogging spray bar according to claim 1, characterized in that: The gas passage (2222) includes a fourth flow channel (2223) communicating with the jet nozzle. The bottom wall of the gas cap (222) is provided with an air inlet (2224) communicating with the fourth flow channel (2223). The air inlet (2224) is arranged opposite to and communicates with the second fluid supply channel (216).

6. A multi-head dual-fluid anti-clogging spray bar according to claim 1, characterized in that: The opening and closing element (224) includes a valve needle (2241) and an elastic element (2242) for driving the valve needle (2241) to insert into the nozzle (221). The valve needle (2241) includes a valve body (2243) inserted into the third flow channel (2213). One end of the valve body (2243) is provided with a valve head (2244) for blocking the nozzle (221), and the other end is provided with a blocking head (2245) for blocking the third flow channel (2213). The blocking head (2245) is provided with a valve head located at the nozzle. (221) An external valve cap (2246) is provided with a second sealing ring (2247) on its periphery for forming a seal with the mounting groove. A buffer space (2248) is provided between the valve cap (2246) and the nozzle (221). An opening and closing air passage (217) for connecting the second flow channel (102) and the buffer space (2248) is provided on the valve body (210). A sealing element (218) for blocking the opening and closing air passage (217) is provided on the valve body (210).

7. A multi-head dual-fluid anti-clogging spray bar according to claim 1, characterized in that: The sealing element (218) is configured as a sealing screw that is screwed onto the valve body (210), with one end of the sealing screw extending into the opening and closing air passage (217).

8. A multi-head dual-fluid anti-clogging spray bar according to claim 1, characterized in that: The valve body (210) includes a connecting part (211) inserted into the pipe body (110) and a mounting part (212) located outside the pipe body (110). A connecting ring (213) extending into the second flow channel (102) is provided on the connecting part (211), and the port of the second fluid supply channel (216) is provided on the connecting ring (213).

9. A multi-head dual-fluid anti-clogging spray bar according to claim 1, characterized in that: The pipe body (110) includes an inner pipe (111) and an outer pipe (112) sleeved on the inner pipe (111). The inner pipe (111) forms a first flow channel (101), and a second flow channel (102) is formed between the inner pipe (111) and the outer pipe (112). The inner pipe (111) is provided with a water inlet pipe (1111) extending out of the outer pipe (112), and the outer pipe (112) is provided with an air inlet pipe (1121).

10. A multi-head dual-fluid anti-clogging spray bar according to claim 1, characterized in that: Several of the atomizing nozzles (220) are arranged at circumferential intervals along the first connecting channel (214) and are inclined relative to the first connecting channel (214) axially.

11. A multi-head dual-fluid anti-clogging spray bar according to claim 1, characterized in that: The valve head (2244) is provided with a cleaning needle (2249) at its end, and the diameter of the cleaning needle (2249) is smaller than the diameter of the spray nozzle (2211).

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