A spray-suction integrated cleaning head device for finned tube cleaning and a control method thereof

Abstract

The application discloses a spray-suction integrated cleaning head device and a control method for finned tube cleaning, wherein the device comprises a spraying assembly, a support assembly, a roller core, a dust suction cover, a brush and a duct; the spraying assembly is arranged on one side of the support assembly and forms a feeding cavity with the support assembly, and the bottom of the feeding cavity is provided with a feeding port; the dust suction cover is arranged on the other side of the support assembly and forms a dust suction cavity with the support assembly, and the bottom of the dust suction cavity is provided with an air suction port; the roller core is arranged at the top position of the support assembly, and the brush is arranged at the middle position of the support assembly; the roller core and the brush are in contact with the spiral finned tube of the air cooler to be cleaned; and the duct is arranged between the feeding cavity and the dust suction cavity. The device can effectively treat the dirt on the surface of the finned tube by using liquid surfactant, gas-liquid mixed fluid and pure gas fluid, realizes peeling, collects the peeled dirt by using a high negative pressure dust collection device, and avoids dirt falling.

Description

Technical Field

[0001] This invention relates to the field of natural gas compression and transportation technology, and in particular to a spray-suction integrated cleaning head device and control method for cleaning finned tubes. Background Technology

[0002] Natural gas transportation and storage require compression and pressurization to meet process requirements and facilitate pressure delivery. The compression process involves a rise in natural gas temperature, which can negatively impact the lifespan of valves and corrosion-resistant coatings within the pipeline system. Therefore, cooling is necessary after compression. For gas storage applications requiring higher pressures, multi-stage compression is necessary, resulting in a significant overall temperature increase, necessitating interstage cooling.

[0003] In tube-fin air coolers used for natural gas cooling, a large amount of dust and fiber accumulates on the outer surface of the finned tubes during long-term use, forming a continuous and dense fouling under alternating hot and cold and wet / dry conditions. This fouling hinders the dissipation of heat from the natural gas inside the air cooler to the outside air, reducing the air cooler's efficiency. Furthermore, the fouling fills the gaps between the fins, reducing the airflow and increasing the fan power. Therefore, it is necessary to clean the external fouling of the air cooler.

[0004] Spiral tube-finned air coolers consist of multiple heat exchange tubes with small fin spacing and staggered arrangement, forming a complex multi-curved spatial surface. However, the fin structure has low strength and cannot withstand significant external forces, making it difficult to clean the outer surface of the finned tubes. Furthermore, dirt detached from the heat exchange tube surface can easily be drawn into the lower part of the air cooler, affecting its operation and lifespan. Summary of the Invention

[0005] To address the aforementioned issues, this invention proposes a spray-suction integrated cleaning head device and control method for cleaning finned tubes. This device utilizes liquid surfactants, gas-liquid mixtures, or pure gaseous fluids to effectively treat and remove dirt from the surface of the finned tubes. Simultaneously, a high-negative-pressure dust collection device is employed to collect the removed dirt, preventing it from falling back down.

[0006] The technical solution adopted in this invention is as follows:

[0007] A spray-suction integrated cleaning head device for cleaning finned tubes includes a spray assembly, a support assembly, a roller, a dust suction hood, a brush, and a guide tube. The spray assembly is disposed on one side of the support assembly and forms a feeding chamber with the support assembly, the bottom of which has a feeding port. The dust suction hood is disposed on the other side of the support assembly and forms a suction chamber with the support assembly, the bottom of which has an air suction port. The roller is disposed at the top of the support assembly, and the brush is disposed at the middle of the support assembly. Both the roller and the brush are in contact with the spiral finned tubes of the air cooler to be cleaned. The guide tube is disposed between the feeding chamber and the suction chamber.

[0008] Furthermore, the spray assembly includes a spray body, pipe joints, nozzles, baffles, a float valve assembly, spray holes, a liquid supply chamber, an air jet outlet, and an air supply chamber; the spray body is provided with an elongated air jet outlet and multiple pipe joints, each pipe joint being provided with a nozzle, and the nozzle being provided with multiple spray holes; a baffle is also provided inside the spray body to separate the pipe joints, nozzles, and air jet outlets, forming a liquid supply chamber and an air supply chamber respectively; a feed port is provided at the bottom of the spray body, and a float valve assembly is provided inside the feed port.

[0009] Furthermore, the float valve assembly includes a conical hollow body, a flexible sealing body, a limiting body, a limiting orifice plate, a through hole, and a flow channel. The conical hollow body is connected to the flexible sealing body, the side of the flexible sealing body is attached to the inner surface of the feed port, the limiting body is attached to the side of the partition plate, and the limiting orifice plate is provided with multiple through holes. The limiting orifice plate and the flexible sealing body form a flow channel.

[0010] Furthermore, the support assembly includes a support body, a support ear structure, a mandrel, and a drain pipe. The support ear structure is disposed on the side of the support body, and the dust collection hood is disposed on the support ear structure. The mandrel is disposed at the top of the support body and there are multiple mandrels. The roller is disposed on the mandrel. The drain pipe is disposed at the bottom of the support body and is connected to the micropores on the dust collection hood through a conduit.

[0011] Furthermore, the conduit is positioned between the feeding chamber and the dust collection chamber, allowing liquid falling into the feeding chamber to be drawn into the dust collection chamber through the drain pipe, conduit, and micropores under negative pressure suction, and discharged from the suction port along with the dirt.

[0012] Furthermore, the brush is positioned in the middle of the support assembly and can isolate the gaps between the feeding chamber, the dust suction chamber, and the spiral finned tube of the air cooler.

[0013] A control method for a spray-suction integrated cleaning head device for cleaning finned tubes includes:

[0014] The integrated spray and suction cleaning head is applied to the area below the spiral finned tube of the air cooler to be cleaned. The spiral finned tube of the air cooler includes heat exchange tubes and spiral fins. The roller of the integrated spray and suction cleaning head forms multi-line contact with the spiral fins, and the rotation of the roller enables the integrated spray and suction cleaning head to move left and right in the horizontal direction. At the same time, the brush is inserted into the gap between the spiral fins.

[0015] As the integrated spray and suction cleaning head moves horizontally left and right, on the one hand, the roller core rolls on the surface of the spiral finned tube of the air cooler and contacts the lower envelope surface of several spiral fins, promoting the breaking and peeling off of dirt; on the other hand, the brush acts on the side of the spiral fins to scrub the dirt, causing the dirt to peel off from the side of the spiral fins and the surface of the heat exchange tube.

[0016] A control method for a spray-suction integrated cleaning head device for cleaning finned tubes includes: introducing a gaseous medium or a gas-liquid mixed fluid medium through a feed port, causing the gaseous medium or gas-liquid mixed fluid medium to generate a vertically upward pressure on the float valve assembly of the spray component, but the overall pressure is less than the weight of the float valve assembly. At this time, the flexible sealing body of the float valve assembly separates from the baffle, so the gaseous medium or gas-liquid mixed fluid medium can enter the liquid supply chamber, and at the same time enter the air supply chamber through the flow channel and through hole, and be sprayed out through the jet nozzle, acting vertically on the spiral finned tube of the air cooler to be cleaned.

[0017] A control method for a spray-suction integrated cleaning head device for cleaning finned tubes includes: introducing a liquid medium through a feed port, causing the liquid medium to exert vertical upward pressure on the float valve assembly of the spray component; when the sum of pressure and buoyancy is greater than gravity, the float valve assembly moves upward, causing the flexible sealing body of the float valve assembly to adhere to the partition plate, while the side of the flexible sealing body adheres to the inner surface of the feed port, closing the channel for the liquid medium to enter the air supply chamber, so that the liquid medium can only enter the liquid supply chamber, and under the action of the liquid supply pressure, it is sprayed into the feed chamber through the pipe joint, nozzle and spray hole, and sprayed onto the spiral finned tubes of the air cooler to be cleaned.

[0018] Furthermore, when a gaseous medium, a gas-liquid mixed fluid medium, or a liquid medium is introduced through the feed port, a negative pressure suction is provided through the air intake port, so that the gaseous medium, gas-liquid mixed fluid medium, or liquid medium entering the spiral finned tube area of ​​the air cooler to be cleaned, along with the peeled dirt, is sucked into the dust collection chamber and discharged through the air intake port.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. For the treatment of surface fouling in tube-fin air coolers, the present invention can use gas, gas-liquid mixture, or liquid to enhance fouling removal, and the effect can be enhanced by the mechanical action of roller core and brush.

[0021] 2. In the process of removing dirt, the present invention simultaneously collects dirt and fallen liquid, and the larger negative pressure generates greater suction and faster fluid velocity, thereby improving the removal effect of surface dirt.

[0022] 3. The present invention is equipped with a float valve that can be adaptively adjusted according to the medium density and flow rate, forming an automatic control space for the entry of different fluids, thereby realizing the function of differentiated distribution of different fluids.

[0023] 4. The brush of the present invention not only has a mechanical removal and peeling effect on dirt, but also serves as a partition between the feeding chamber and the dust collection chamber, preventing the conveying fluid from being directly sucked away by the dust collection hood and ensuring that the fluid fully acts on the dirt on the surface of the finned tube. Attached Figure Description

[0024] Figure 1 This is an isometric view of the spray-suction integrated cleaning head device of Embodiment 1 of the present invention.

[0025] Figure 2 This is a top view schematic diagram of the spray-suction integrated cleaning head device of Embodiment 1 of the present invention.

[0026] Figure 3 This is a cross-sectional view AA of the integrated spray and suction cleaning head device of Embodiment 1 of the present invention.

[0027] Figure 4 This is a schematic diagram of the spray assembly structure of Embodiment 1 of the present invention.

[0028] Figure 5 This is a schematic diagram of the float valve assembly structure of Embodiment 1 of the present invention.

[0029] Figure 6 This is a schematic diagram of the support assembly structure of Embodiment 1 of the present invention.

[0030] Figure 7 This is a schematic diagram of the air-purifying cleaning head device of Embodiment 2 of the present invention.

[0031] Figure 8 This is a schematic diagram of the liquid cleaning process of the integrated spray and suction cleaning head device according to Embodiment 2 of the present invention.

[0032] Figure label:

[0033] 1-Spray assembly, 2-Support assembly, 3-Roller core, 4-Dust hood, 5-Brush, 6-Conduit, 7-Air intake, 8-Feeding port, 9-Feeding chamber, 10-Dust suction chamber, 11-Heat exchange tube, 12-Spiral fins; 101-Spray body, 102-Pipe connector, 103-Spray head, 104-Baffle plate, 105-Float valve assembly, 106-Spray hole, 107-Liquid supply chamber, 108-Air jet nozzle, 109-Air supply chamber; 201-Support body, 202-Support lug, 203-Mandrel, 204-Drain pipe; 401-Micropore; V01-Conical hollow body, V02-Flexible sealing body, V03-Limiting body, V04-Limiting orifice plate, V05-Through hole, V06-Flow channel. Detailed Implementation

[0034] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments are now described. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention; that is, the described embodiments are only a part of the embodiments of the invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] Because spiral tube finned air coolers consist of multiple heat exchange tubes with small fin spacing and staggered arrangement, they form a complex multi-curved spatial surface. Simultaneously, the fin structure has low strength and cannot withstand significant external forces, making it difficult to clean the outer surface of the finned tubes. Furthermore, dirt detached from the heat exchange tube surface can easily be drawn into the lower part of the air cooler, affecting its operation and lifespan.

[0037] Based on this, this embodiment provides a spray-suction integrated cleaning head device for cleaning finned tubes, including a spray assembly 1, a support assembly 2, a roller 3, a dust suction hood 4, a brush 5, and a conduit 6. Figures 1-3 As shown, the spray assembly 1 is located on one side of the support assembly 2 and forms a feeding chamber 9 with the support assembly 2. The bottom of the feeding chamber 9 is provided with a feeding port 8. The dust collection hood 4 is located on the other side of the support assembly 2 and forms a dust collection chamber 10 with the support assembly 2. The bottom of the dust collection chamber 10 is provided with an air intake 7. The roller core 3 is located at the top of the support assembly 2, and the brush 5 is located at the middle of the support assembly 2. Both the roller core 3 and the brush 5 are in contact with the spiral finned tube of the air cooler to be cleaned, and the brush 5 can block the gap between the feeding chamber 9, the dust collection chamber 10 and the spiral finned tube of the air cooler. The conduit 6 is located between the feeding chamber 9 and the dust collection chamber 10, so that the liquid that falls into the feeding chamber 9 can be sucked into the dust collection chamber 10 through the conduit 6 under the action of negative pressure suction, and discharged from the air intake 7 along with the dirt.

[0038] Preferably, such as Figure 4 As shown, the spray assembly 1 includes a spray body 101, pipe joints 102, nozzles 103, baffles 104, float valve assembly 105, spray holes 106, liquid supply chamber 107, air jet outlet 108, and air supply chamber 109. The spray body 101 is provided with an elongated air jet outlet 108 and multiple pipe joints 102. Each pipe joint 102 is provided with a nozzle 103, and the nozzle 103 is provided with multiple spray holes 106. The spray body 101 is also provided with a baffle 104, which separates the pipe joints 102, nozzles 103, and air jet outlet 108 to form a liquid supply chamber 107 and an air supply chamber 109, respectively. The bottom of the spray body 101 is provided with a feed port 8, and the feed port 8 is provided with a float valve assembly 105.

[0039] More preferably, such as Figure 5 As shown, the float valve assembly includes a conical hollow body V01, a flexible sealing body V02, a limiting body V03, a limiting orifice plate V04, a through hole V05, and a flow channel V06. The conical hollow body V01 is connected to the flexible sealing body V02. The side of the flexible sealing body V02 is attached to the inner surface of the feed port 8. The limiting body V03 is attached to the side of the partition plate 104. The limiting orifice plate V04 is provided with multiple through holes V05. The flow channel V06 is formed between the limiting orifice plate V04 and the flexible sealing body V02.

[0040] Preferably, such as Figure 6 As shown, the support assembly 2 includes a support body 201, a support ear structure 202, a spindle 203, and a drain pipe 204. The support ear structure 202 is located on the side of the support body 201, and the dust collection hood 4 is located on the support ear structure 202. The spindle 203 is located at the top of the support body 201 and has multiple spindles. The roller core 3 is located on the spindle 203. The drain pipe 204 is located at the bottom of the support body 201 and is connected to the micropores 401 on the dust collection hood 4 through the conduit 6. This allows liquid that falls into the feeding chamber 9 to be sucked into the dust collection chamber 10 through the drain pipe 204, the conduit 6, and the micropores 401 under the action of negative pressure suction, and then discharged from the suction port 7 along with the dirt.

[0041] Example 2

[0042] This embodiment is based on embodiment 1:

[0043] This embodiment provides a control method for a spray-suction integrated cleaning head device for cleaning finned tubes, comprising: placing the spray-suction integrated cleaning head device below the spiral finned tube of an air cooler to be cleaned, wherein the spiral finned tube of the air cooler includes heat exchange tubes 11 and spiral fins 12; the roller core 3 of the spray-suction integrated cleaning head device forms multi-line contact with the spiral fins 12, and the rotation of the roller core 3 enables the spray-suction integrated cleaning head device to move left and right in the horizontal direction; simultaneously, a brush 5 is inserted into the gap between the spiral fins 12. During the left and right movement of the spray-suction integrated cleaning head device in the horizontal direction, on the one hand, the roller core 3 rolls on the surface of the spiral finned tube of the air cooler and contacts the lower envelope surface of several spiral fins 12, promoting the breaking and peeling off of dirt; on the other hand, the brush 5 acts on the side of the spiral fins 12 to brush the dirt, causing the dirt to peel off from the side of the spiral fins 12 and the surface of the heat exchange tubes 11.

[0044] Preferably, such as Figure 7 As shown, a gaseous medium or a gas-liquid mixture can be introduced through the feed port 8, causing the gaseous medium or gas-liquid mixture to exert a vertical upward pressure on the float valve assembly 105 of the spray assembly 1. However, the overall pressure is less than the weight of the float valve assembly 105. At this time, the flexible sealing body V02 of the float valve assembly 105 separates from the partition plate 104, so the gaseous medium or gas-liquid mixture can enter the liquid supply chamber 107 and simultaneously enter the air supply chamber 109 through the flow channel V06 and the through hole V05. Since the spray holes 106 on the nozzle 103 are small, a large amount of air or gas-liquid mixture enters the air supply chamber 109 and is ejected through the jet nozzle 108, acting vertically on the small areas of the heat exchange tube 11 and the spiral fins 12. This promotes the removal of dirt through the flexible fluid without damaging the spiral fins 12.

[0045] Preferably, such as Figure 8 As shown, liquid medium can be introduced through the feed port 8, causing the liquid medium to exert vertical upward pressure on the float valve assembly 105 of the spray assembly 1. The float valve assembly 105 is hollow, so it will generate vertical upward buoyancy when it is in the liquid. When the sum of pressure and buoyancy is greater than gravity, the float valve assembly 105 moves upward, causing the flexible sealing body V02 of the float valve assembly 105 to adhere to the partition 104. At the same time, the side of the flexible sealing body V02 adheres to the inner surface of the feed port 8, closing the channel for the liquid medium to enter the air supply chamber 109. As a result, the liquid medium can only enter the liquid supply chamber 107, and under the action of the liquid supply pressure, it is sprayed into the feed chamber 9 through the pipe joint 102, the nozzle 103 and the spray hole 106, and finally sprayed over a large area on the surface of the heat exchange tube 11 and the spiral fin 12. Then, it interacts with the dirt, and by utilizing the active effect of the liquid, it causes the adhesion between the dirt and the heat exchange tube 11 and the spiral fin 12 to decrease, resulting in peeling.

[0046] Preferably, when a gaseous medium, a gas-liquid mixture, or a liquid medium is introduced through the feed port 8, a negative pressure suction is provided through the suction port 7. This suction draws the gaseous medium, gas-liquid mixture, liquid medium, and detached dirt into the spiral finned tube area of ​​the air cooler to be cleaned into the dust collection chamber 10, and then outputs through the suction port 7 to collect the dirt and liquid. At the same time, the large negative pressure generates a rapid airflow, which can accelerate the rate at which dirt detaches from the heat exchange tubes 11 and spiral fins 12.

[0047] More preferably, such as Figure 7 , Figure 8 The processes shown can be performed alternately to achieve a better dirt removal effect.

[0048] It should be noted that when liquid falls into the feeding chamber 9 and is located on the upper surface of the spray body 101, the liquid can be drawn into the dust collection hood 4 through the drain pipe 204, the conduit 6, and the micropores 401 under negative pressure, and then discharged from the suction port 7 along with the dirt. In addition, the brush 5 not only acts on surface dirt, but also forms a barrier between the feeding chamber 9, the dust collection chamber 10, the heat exchange tube 11, and the spiral fins 12, preventing the fluid entering from the feeding chamber 9 from being directly sucked away by the dust collection hood 4 and thus failing to perform its function.

[0049] In summary, the integrated spray-suction cleaning head device and control method for cleaning finned tubes of this invention can adaptively control the input fluid to enter different distribution structures based on the different physical properties of the fluid medium, thereby achieving different fluid distribution methods and differentiating the action areas of different fluids on dirt. Simultaneously, when using gas, gas-liquid mixtures, or liquids to remove dirt, the integrated spray-suction cleaning head device can simultaneously absorb and collect the removed dirt and liquid, preventing dirt and liquid from falling into the lower part of the air cooler. Furthermore, the contact moving device and mechanical brush device in the integrated spray-suction cleaning head device, while fulfilling their original functions, can enhance the dirt removal effect and improve the overall performance of the device.

[0050] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A spray-suction integrated cleaning head device for cleaning finned tubes, characterized in that, The assembly includes a spray assembly (1), a support assembly (2), a roller (3), a dust hood (4), a brush (5), and a conduit (6). The spray assembly (1) is located on one side of the support assembly (2) and forms a feeding chamber (9) with the support assembly (2). The bottom of the feeding chamber (9) is provided with a feeding port (8). The dust hood (4) is located on the other side of the support assembly (2) and forms a dust suction chamber (10) with the support assembly (2). The bottom of the dust suction chamber (10) is provided with an air suction port (7). The roller (3) is located at the top of the support assembly (2), and the brush (5) is located at the middle of the support assembly (2). Both the roller (3) and the brush (5) are in contact with the spiral finned tube of the air cooler to be cleaned. The conduit (6) is located between the feeding chamber (9) and the dust suction chamber (10).

2. The integrated spray-suction cleaning head device for cleaning finned tubes according to claim 1, characterized in that, The spray assembly (1) includes a spray body (101), pipe joints (102), nozzles (103), baffles (104), float valve assembly (105), spray holes (106), liquid supply chamber (107), air jet outlets (108), and air supply chamber (109). The spray body (101) is provided with elongated air jet outlets (108) and multiple pipe joints (102), each of which is provided with a nozzle. (103) The nozzle (103) is provided with a plurality of spray holes (106); the spray body (101) is also provided with a partition (104) to separate the pipe joint (102), the nozzle (103) and the air jet (108) to form a liquid supply chamber (107) and an air supply chamber (109) respectively; the bottom of the spray body (101) is provided with a feed port (8), and a float valve assembly (105) is provided inside the feed port (8).

3. The integrated spray and suction cleaning head device for cleaning finned tubes according to claim 2, characterized in that, The float valve assembly includes a conical hollow body (V01), a flexible sealing body (V02), a limiting body (V03), a limiting orifice plate (V04), a through hole (V05), and a flow channel (V06). The conical hollow body (V01) is connected to the flexible sealing body (V02). The side of the flexible sealing body (V02) is attached to the inner surface of the feed port (8). The limiting body (V03) is attached to the side of the partition plate (104). The limiting orifice plate (V04) is provided with multiple through holes (V05). The limiting orifice plate (V04) and the flexible sealing body (V02) form a flow channel (V06).

4. The integrated spray and suction cleaning head device for cleaning finned tubes according to claim 1, characterized in that, The support assembly (2) includes a support body (201), a support ear structure (202), a spindle (203), and a drain pipe (204). The support ear structure (202) is disposed on the side of the support body (201), and the dust cover (4) is disposed on the support ear structure (202). The spindle (203) is disposed at the top of the support body (201) and there are multiple spindles. The roller core (3) is disposed on the spindle (203). The drain pipe (204) is disposed at the bottom of the support body (201) and is connected to the micropores (401) on the dust cover (4) through a conduit (6).

5. A spray-suction integrated cleaning head device for cleaning finned tubes according to claim 4, characterized in that, The conduit (6) is located between the feeding chamber (9) and the dust collection chamber (10), so that the liquid falling into the feeding chamber (9) can be sucked into the dust collection chamber (10) through the drain pipe (204), the conduit (6) and the micropore (401) under the action of negative pressure suction, and discharged from the air intake (7) along with the dirt.

6. The integrated spray and suction cleaning head device for cleaning finned tubes according to claim 1, characterized in that, The brush (5) is located in the middle of the support assembly (2) and can isolate the gap between the feeding chamber (9), the dust suction chamber (10) and the spiral finned tube of the air cooler.

7. A control method for a spray-suction integrated cleaning head device for cleaning finned tubes, based on the spray-suction integrated cleaning head device according to claim 1, characterized in that, include: The spray-suction integrated cleaning head device is applied to the area below the spiral finned tube of the air cooler to be cleaned. The spiral finned tube of the air cooler includes a heat exchange tube (11) and spiral fins (12). The roller core (3) of the spray-suction integrated cleaning head device forms a multi-line contact with the spiral fins (12), and the spray-suction integrated cleaning head device can move left and right in the horizontal direction by rotating the roller core (3). At the same time, the brush (5) is inserted into the gap between the spiral fins (12). During the horizontal movement of the spray-suction integrated cleaning head device, on the one hand, the roller core (3) rolls on the surface of the spiral finned tube of the air cooler and contacts the lower envelope of several spiral fins (12), promoting the breaking and peeling off of dirt; on the other hand, the brush (5) acts on the side of the spiral fins (12) to brush the dirt, causing the dirt to peel off from the side of the spiral fins (12) and the surface of the heat exchange tube (11).

8. A control method for a spray-suction integrated cleaning head device for cleaning finned tubes, based on the spray-suction integrated cleaning head device according to claim 3, characterized in that, include: A gaseous medium or a gas-liquid mixture is introduced through the feed port (8), causing the gaseous medium or the gas-liquid mixture to exert a vertical upward pressure on the float valve assembly (105) of the spray assembly (1), but the overall pressure is less than the weight of the float valve assembly (105). At this time, the flexible sealing body (V02) of the float valve assembly (105) separates from the partition (104), so the gaseous medium or the gas-liquid mixture can enter the liquid supply chamber (107), and at the same time enter the air supply chamber (109) through the flow channel (V06) and the through hole (V05), and be sprayed out through the jet nozzle (108), acting vertically on the spiral finned tube of the air cooler to be cleaned.

9. A control method for a spray-suction integrated cleaning head device for cleaning finned tubes, based on the spray-suction integrated cleaning head device according to claim 3, characterized in that, include: Liquid medium is introduced through the feed port (8) so that the liquid medium generates vertical upward pressure on the float valve assembly (105) of the spray assembly (1); When the sum of pressure and buoyancy is greater than gravity, the float valve assembly (105) moves upward, causing the flexible sealing body (V02) of the float valve assembly (105) to fit against the partition (104). At the same time, the side of the flexible sealing body (V02) fits against the inner surface of the feed port (8), closing the channel for the liquid medium to enter the air supply chamber (109). As a result, the liquid medium can only enter the liquid supply chamber (107) and is sprayed into the feed chamber (9) through the pipe joint (102), nozzle (103) and spray hole (106) under the action of the liquid supply pressure, and is sprayed onto the spiral finned tube of the air cooler to be cleaned.

10. A control method for a spray-suction integrated cleaning head device for cleaning finned tubes, based on the spray-suction integrated cleaning head device according to claim 8 or 9, characterized in that, include: When a gaseous medium, a gas-liquid mixed fluid medium, or a liquid medium is introduced through the feed port (8), a negative pressure suction is provided through the air intake port (7) so that the gaseous medium, gas-liquid mixed fluid medium, or liquid medium entering the spiral finned tube area of ​​the air cooler to be cleaned, along with the peeled dirt, is sucked into the dust collection chamber (10) and discharged through the air intake port (7).

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