Marine air cooler cleaning method

Abstract

This invention belongs to the field of marine technology and discloses a marine air cooler cleaning device and method. The marine air cooler cleaning device includes a spray assembly, a liquid inlet pipe, and a regulating valve. The spray assembly includes multiple spray pipes, each of which can selectively connect to a cleaning fluid source. The cleaning fluid can be sprayed onto the air cooler core through the multiple spray pipes and their nozzles. The regulating valve is located on the liquid inlet pipe and is communicatively connected to the control system of the marine diesel engine, used to regulate the flow rate of the cleaning fluid in the liquid inlet pipe. This marine air cooler cleaning device can quantitatively clean the air cooler core according to the operating conditions of the marine diesel engine, thereby achieving an effective supply of cleaning fluid. This invention also provides a marine air cooler cleaning method. Using the above-mentioned marine air cooler cleaning device, the air cooler core can be cleaned periodically and quantitatively according to the operating power of the marine diesel engine, thereby achieving an effective supply of cleaning fluid.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a cleaning device and method for marine air coolers. Background Technology

[0002] In the shipbuilding industry, marine diesel engines are commonly used to power ships. Because these engines generate a significant amount of heat during operation, air coolers are necessary for cooling and to ensure their safe operation. After a period of use, air pollutants (such as grease, salt, or dust) accumulate on the fins and cooling pipes of the air cooler, requiring timely cleaning. Otherwise, the cooling efficiency of the air cooler will be severely affected, thus impacting the normal operation of the marine diesel engine.

[0003] For example, patent CN210686116U discloses a marine air cooler cleaning device, including a liquid storage tank, an air intake assembly, a liquid inlet assembly, and a cleaning assembly. The liquid storage tank is equipped with a graduated dial for measuring the liquid level. The air intake assembly is connected to the top of the liquid storage tank and provides compressed air to it. The liquid inlet assembly is also connected to the top of the liquid storage tank and supplies cleaning fluid to it. The cleaning assembly is connected to the bottom of the liquid storage tank and cleans the marine air cooler. While this marine air cooler cleaning device can clean the air cooler, it relies solely on measuring the liquid level in the storage tank with a graduated dial to control the amount of cleaning fluid supplied. This method has low accuracy and is prone to supplying too much or too little cleaning fluid, failing to achieve effective cleaning fluid supply.

[0004] Therefore, there is an urgent need for a marine air cooler cleaning device and cleaning method to solve the above problems. Summary of the Invention

[0005] One object of the present invention is to provide a marine air cooler cleaning device that can quantitatively clean the air cooler core according to the operating conditions of the marine diesel engine, so as to achieve effective supply of cleaning fluid.

[0006] Another objective of this invention is to provide a method for cleaning marine air coolers. Using the above-mentioned marine air cooler cleaning device, the air cooler core can be cleaned in a timely and quantitative manner according to the operating power of the marine diesel engine, so as to achieve effective supply of cleaning fluid.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] On the one hand, an air cooler cleaning device is provided, comprising:

[0009] A spray assembly includes multiple spray pipes, which are spaced apart in the scavenging box of a marine air cooler along a first direction. Each spray pipe extends along a second direction, which is perpendicular to the first direction. Each spray pipe can selectively communicate with a cleaning fluid source. Each spray pipe has multiple nozzles spaced apart along the second direction on the side facing the air cooler core. The cleaning fluid can be sprayed through the multiple spray pipes and the multiple nozzles to clean the air cooler core.

[0010] The liquid inlet pipe has one end connected to the cleaning liquid source and the other end connected to multiple spray pipes.

[0011] A regulating valve is installed on the inlet pipe and is communicatively connected to the control system of the marine diesel engine. It is used to adjust the flow rate of the cleaning fluid in the inlet pipe according to the operating status of the marine diesel engine.

[0012] Preferably, the marine air cooler cleaning device further includes a measuring component, which is disposed on the liquid inlet pipe and is used to measure the real-time flow rate of the cleaning fluid in the liquid inlet pipe. The measuring component is communicatively connected to the control system of the marine diesel engine, and the control system can adjust the opening of the regulating valve according to the real-time flow rate and the target flow rate.

[0013] Preferably, the liquid inlet pipeline includes a main liquid inlet pipe and multiple branch liquid inlet pipes connected to the main liquid inlet pipe. The main liquid inlet pipe is connected to the cleaning liquid source, and the multiple branch liquid inlet pipes are connected to the multiple spray pipes one by one.

[0014] Preferably, both the regulating valve and the measuring component are located on the main liquid inlet pipe.

[0015] Preferably, the marine air cooler cleaning device further includes a control valve, which is provided on each of the liquid inlet pipes. The control valve is communicatively connected to the control system of the marine diesel engine and is used to control the opening and closing of the liquid inlet pipe.

[0016] Preferably, the main inlet pipe is provided with multiple connecting joints, each of which corresponds to one of the multiple inlet branch pipes, and each inlet branch pipe is connected to the main inlet pipe through the corresponding connecting joint.

[0017] Preferably, the marine air cooler cleaning device further includes a limiting plate, which can limit and fix the multiple liquid inlet pipes to the outer wall of the scavenging box.

[0018] Preferably, the spray assembly further includes a sealing element for sealing the end of the spray pipe away from the liquid inlet pipe.

[0019] Preferably, the spray pipe is provided with a plurality of mounting joints on the side facing the air cooler core, which are connected to the inner cavity of the spray pipe, and one spray head can be detached and installed in each mounting joint.

[0020] On the other hand, a method for cleaning a marine air cooler is provided, employing the marine air cooler cleaning device described above, and including the following steps:

[0021] S1. The control system of the marine diesel engine main unit monitors the operating power of the marine diesel engine main unit in real time and determines whether the operating power is less than a preset value. If so, it controls the regulating valve to adjust the flow rate of the cleaning fluid in the inlet pipe to a first flow rate value and connects part of the spray pipes to the cleaning fluid source to clean the air cooler core. If not, it controls the regulating valve to adjust the flow rate of the cleaning fluid in the inlet pipe to a second flow rate value and connects all the spray pipes to the cleaning fluid source. The second flow rate value is greater than the first flow rate value to clean the air cooler core.

[0022] S2. After the first preset cleaning time, disconnect the spray pipe from the cleaning liquid source to end one cleaning cycle of the air cooler core.

[0023] S3. After the second preset time, the cleaning of the air cooler core is started again, and steps S1 to S2 are executed in sequence.

[0024] Beneficial effects:

[0025] This invention provides a marine air cooler cleaning device. When cleaning the air cooler core is required, some or all of the spray pipes are connected to the cleaning fluid source according to the operating status of the marine diesel engine. The cleaning fluid is then sprayed onto the air cooler core through the corresponding spray pipes and multiple nozzles. After cleaning, the spray pipes are disconnected from the cleaning fluid source. The device is convenient and highly flexible. The multiple spray pipes ensure that the cleaning range of the spray assembly covers the entire air cooler core, allowing for the selection of appropriate spray pipe positions to clean the air cooler core according to actual cleaning needs, significantly improving cleaning efficiency. Because the regulating valve is connected to the control system of the marine diesel engine, the control system can control the opening of the regulating valve in real time according to the operating status of the marine diesel engine. This ensures that the flow rate of the cleaning fluid in the inlet pipe is always controlled at an appropriate level, thereby ensuring that the appropriate flow rate of cleaning fluid is always supplied to the spray pipe. This achieves quantitative cleaning of the air cooler core, with high adjustment precision. It effectively prevents incomplete cleaning due to insufficient cleaning fluid or waste of cleaning fluid and increased costs due to excessive cleaning fluid, thus achieving an effective supply of cleaning fluid.

[0026] This invention also provides a method for cleaning marine air coolers, which can clean the air cooler core in a timed and quantitative manner according to the operating power of the marine diesel engine. Specifically, the control system of the marine diesel engine monitors the operating power of the engine in real time. When the operating power is less than a preset value, the control system sends a control command to the regulating valve to adjust the flow rate of the cleaning fluid in the inlet pipe to a first flow rate value, while only connecting a portion of the spray pipes to the cleaning fluid source to clean the air cooler core. When the operating power is greater than or equal to the preset value, the control system sends a control command to the regulating valve to adjust the flow rate of the cleaning fluid in the inlet pipe to a second flow rate value, while connecting all the spray pipes to the cleaning fluid source to clean the air cooler core. After cleaning for a first preset time, the spray pipes are disconnected from the cleaning fluid source, completing one cleaning cycle. After a second preset time, the above steps are repeated to achieve timed and quantitative cleaning of the air cooler core, preventing incomplete cleaning due to insufficient cleaning fluid or waste due to excessive cleaning fluid, thus achieving effective cleaning fluid supply and saving costs. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of the marine air cooler cleaning device provided by the present invention;

[0028] Figure 2 This is a three-dimensional schematic diagram of the installation position of the marine air cooler cleaning device provided by the present invention;

[0029] Figure 3 This is a side view of the installation position of the marine air cooler cleaning device provided by the present invention;

[0030] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 This is a schematic diagram showing the spacing of multiple control valves in the marine air cooler cleaning device provided by the present invention.

[0032] Figure 6 This is a schematic diagram of the control valve and mounting bracket of the marine air cooler cleaning device provided by the present invention;

[0033] Figure 7 yes Figure 3 Enlarged view of point B in the middle;

[0034] Figure 8 This is a schematic diagram of the spray pipe structure of the marine air cooler cleaning device provided by the present invention;

[0035] Figure 9 yes Figure 8 A partial view;

[0036] Figure 10 yes Figure 8Sectional view at point CC.

[0037] In the picture:

[0038] 1. Sprinkler assembly; 11. Sprinkler pipe; 111. Mounting connector; 112. First connecting part; 113. Second connecting part; 12. Sealing component;

[0039] 2. Liquid inlet pipeline; 21. Main liquid inlet pipe; 211. Connecting joint; 22. Sub-liquid inlet pipe;

[0040] 3. Control valve;

[0041] 4. Measuring components;

[0042] 5. Control valve; 51. Pneumatic actuator; 52. Drive shaft; 53. Valve body;

[0043] 6. Limiting plate;

[0044] 7. First fastener;

[0045] 8. Mounting bracket; 81. First mounting plate; 82. Second mounting plate;

[0046] 100. Scavenging box;

[0047] 200. Air cooler core;

[0048] 300. Bracket platform. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0050] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0053] See Figure 1 This embodiment provides a marine air cooler cleaning device that can quantitatively clean the air cooler core 200 according to the operating conditions of the marine diesel engine, thereby achieving effective supply of cleaning fluid. The marine air cooler cleaning device includes a spray assembly 1, a liquid inlet pipe 2, and a regulating valve 3. See also... Figure 2 The spray assembly 1 includes multiple spray pipes 11, which are spaced apart along a first direction within the scavenging air box 100 of the marine air cooler. Each spray pipe 11 extends along a second direction, perpendicular to the first direction. Each spray pipe 11 can selectively communicate with a cleaning fluid source. Multiple nozzles are spaced apart along the second direction on the side of each spray pipe 11 facing the air cooler core 200, allowing the cleaning fluid to be sprayed and cleaned from the air cooler core 200 via the multiple spray pipes 11 and nozzles. One end of the inlet pipe 2 is connected to the cleaning fluid source, and the other end is connected to the multiple spray pipes 11. A regulating valve 3 is installed on the inlet pipe 2 and is communicatively connected to the control system of the marine diesel engine, used to adjust the flow rate of the cleaning fluid in the inlet pipe 2 according to the operating status of the marine diesel engine.

[0054] The marine air cooler cleaning device provided in this embodiment allows for the connection of some or all of the spray pipes 11 to the cleaning fluid source when cleaning the air cooler core 200 is required, depending on the operating status of the marine diesel engine. This allows the cleaning fluid to be sprayed onto the air cooler core 200 through the corresponding spray pipes 11 and their multiple nozzles. After cleaning, the spray pipes 11 can be disconnected from the cleaning fluid source. This method is convenient and highly flexible. The arrangement of multiple spray pipes 11 ensures that the cleaning range of the spray assembly 1 covers the entire air cooler core 200, allowing for the selection of appropriate spray pipes 11 to clean the air cooler core 200 according to actual cleaning needs, thus greatly improving cleaning efficiency. Because the regulating valve 3 is connected to the control system of the marine diesel engine, the control system can control the opening of the regulating valve 3 in real time according to the operating status of the marine diesel engine, so that the flow rate of the cleaning fluid in the inlet pipe 2 is always controlled at an appropriate level, thereby ensuring that the appropriate flow rate of cleaning fluid is always introduced into the spray pipe 11 to achieve quantitative cleaning of the air cooler core. The adjustment accuracy is high, effectively preventing incomplete cleaning due to insufficient cleaning fluid or waste of cleaning fluid and increased costs due to excessive cleaning fluid, thus achieving effective supply of cleaning fluid.

[0055] Specifically, the operating parameters of the marine diesel engine main unit reflect its operating status. These parameters mainly include the main unit's operating power, main unit speed, main unit fuel parameters, main unit cylinder liner cooling water temperature parameters, main unit lubricating oil parameters, and main unit scavenging parameters. The control system of the marine diesel engine main unit monitors these operating parameters in real time and sends control commands to the regulating valve 3 to adjust its opening, thereby regulating the flow rate of cleaning fluid in the inlet pipe 2. It should be noted that the cleaning of the air cooler core 200 can be controlled based on one of the operating parameters, or a combination of multiple operating parameters.

[0056] Preferably, the regulating valve 3 is an electronic flow regulating valve, which remotely adjusts the delivery volume of the cleaning fluid through the control system to achieve automated control of the cleaning fluid flow rate. The electronic flow regulating valve has a compact structure and sensitive operation. Optionally, the inlet pipe 2 is made of stainless steel, which is corrosion-resistant and not easily damaged.

[0057] See Figure 2 In this embodiment, the first direction is the width direction of the scavenging air box 100, and the second direction is the length direction of the scavenging air box 100. Four spray pipes 11 are provided, and the four spray pipes 11 are arranged at equal intervals along the first direction within the scavenging air box 100, located above the air cooler core 200, so that the cleaning range of the spray pipes 11 can cover the entire air cooler core 200. Of course, in other embodiments, the spray pipes 11 can also be arranged at unequal intervals. The number and spacing of the spray pipes 11 are determined according to actual cleaning needs and are not limited to the cases listed in this embodiment.

[0058] Furthermore, the marine air cooler cleaning device also includes a measuring component 4, which is installed on the inlet pipe 2 to measure the real-time flow rate of the cleaning fluid in the inlet pipe 2. The measuring component 4 is communicatively connected to the control system of the marine diesel engine, and the control system can adjust the opening of the regulating valve 3 according to the real-time flow rate and the target flow rate. The measuring component 4 can accurately measure the real-time flow rate of the cleaning fluid in the inlet pipe 2 and transmit the real-time flow data to the control system. The control system receives the real-time flow data and sends a control signal to the regulating valve 3 according to the operating status of the marine diesel engine to adjust the opening of the regulating valve 3, thereby adjusting the flow rate of the cleaning fluid in the inlet pipe 2 to the target flow rate value, thus achieving the regulation of the cleaning fluid delivery volume. Optionally, the measuring component 4 is a flow meter.

[0059] Optionally, see Figure 1 , Figure 3 and Figure 4 The liquid inlet pipeline 2 includes a main liquid inlet 21 and multiple branch liquid inlet pipes 22 connected to the main liquid inlet 21. The main liquid inlet 21 is connected to the cleaning liquid source, and the multiple branch liquid inlet pipes 22 are connected to multiple spray pipes 11 one by one. The multiple spray pipes 11 are simultaneously connected to the main liquid inlet 21 through the multiple branch liquid inlet pipes 22. The cleaning liquid in the cleaning liquid source can be simultaneously transported to the multiple spray pipes 11 through the main liquid inlet 21 and the multiple branch liquid inlet pipes 22, so that the multiple spray pipes 11 can spray and clean the air cooler core 200.

[0060] Preferably, both the regulating valve 3 and the measuring component 4 are mounted on the main inlet pipe 21. With this configuration, the flow rate of cleaning fluid in multiple spray pipes 11 can be controlled simultaneously by one regulating valve 3 and one measuring component 4, ensuring the consistency of the cleaning fluid flow rate in multiple spray pipes 11.

[0061] Optionally, the marine air cooler cleaning device also includes control valves 5. Each inlet manifold 22 is equipped with a control valve 5, which is communicatively connected to the control system of the marine diesel engine and used to control the opening and closing of the inlet manifold 22. That is, one control valve 5 controls the opening and closing of one spray pipe 11 and the cleaning fluid source. This arrangement ensures that the multiple spray pipes 11 are independent of each other and do not interfere with each other, thus facilitating the maintenance and replacement of parts. The control valves 5 are communicatively connected to the control system of the marine diesel engine, thereby enabling remote control of the opening and closing of the inlet manifold 22 and realizing automated cleaning. When cleaning the air cooler core 200, the opening and closing of the corresponding spray pipe 11 and the cleaning fluid source can be controlled by adjusting the corresponding control valve 5 through the control system. This allows the corresponding spray pipe 11 to be opened according to the degree of dirt on the air cooler core 200 for localized cleaning, saving cleaning costs and preventing waste of cleaning fluid.

[0062] Optionally, see Figure 4 and Figure 5 The marine air cooler cleaning device also includes a mounting bracket 8, which supports the control valves 5 to prevent displacement of the control valves 5 due to engine vibration, thereby improving the stability of the device. In this embodiment, four control valves 5 are arranged at equal intervals on the mounting bracket 8. Exemplarily, the mounting bracket 8 is connected to the bracket platform 300 by a second fastener, thereby stably fixing the control valves 5 to the bracket platform 300. The installation position of the mounting bracket 8 can be flexibly selected according to actual installation requirements and is not limited to the positions listed in this embodiment.

[0063] Specifically, in this embodiment, the control valve 5 is a pneumatic ball valve. Pneumatic ball valves are simple in structure, highly reliable, and easy to operate. (See also...) Figure 6 The pneumatic ball valve mainly consists of three parts: a pneumatic actuator 51, a drive shaft 52, and a valve body 53. One end of the drive shaft 52 is connected to the output end of the pneumatic actuator 51, and the other end is connected to the ball core inside the valve body 53. The pneumatic actuator 51 is communicatively connected to the control system of the marine diesel engine. Compressed air is supplied to the pneumatic actuator 51 through the engine control, causing the air source to drive the ball core to rotate, thereby controlling the opening and closing of the pneumatic ball valve. Therefore, in order to stably support the control valve 5, the mounting bracket 8 includes a first mounting plate 81 and a second mounting plate 82. The pneumatic actuator 51 and the valve body 53 are respectively connected to the first mounting plate 81 and the second mounting plate 82. Then, the two side plates of the first mounting plate 81 and the second mounting plate 82 are connected together by a third fastener. Finally, the mounting bracket 8 is connected to the bracket platform 300 by a second fastener, thus completing the stable installation of the mounting bracket 8. The first mounting plate 81 and the second mounting plate 82 can support the pneumatic actuator 51 and the valve body 53 respectively, thereby ensuring the stability of the control valve 5. Optionally, both the second and third fasteners are bolts. It should be noted that the specific structure and working principle of the pneumatic ball valve are standard features in existing technology and will not be described in detail here.

[0064] Furthermore, the main liquid inlet pipe 21 is provided with multiple connecting joints 211, each corresponding to a multiple liquid inlet branch pipes 22. Each liquid inlet branch pipe 22 is connected to the main liquid inlet pipe 21 through a corresponding connecting joint 211. The connecting joints 211 can stably connect the liquid inlet branch pipes 22 to the main liquid inlet pipe 21, preventing leakage during cleaning of the air cooler core 200. Further, in this embodiment, the multiple connecting joints 211 are arranged at equal intervals along the extension direction of the main liquid inlet pipe 21. Correspondingly, in this embodiment, there are also four liquid inlet branch pipes 22, and the connecting joints 211 include one two-way connector and three three-way connectors to simultaneously connect the four liquid inlet branch pipes 22 to the main liquid inlet pipe 21.

[0065] Further, see Figure 3 and Figure 7The marine air cooler cleaning device also includes a limiting plate 6, which can limit and fix multiple liquid inlet pipes 22 to the outer wall of the scavenging air box 100. The limiting plate 6 can stably limit the multiple liquid inlet pipes 22 to the outer wall of the scavenging air box 100, preventing the liquid inlet pipes 22 from shifting or falling off due to vibration during the cleaning process. Further, both ends of the limiting plate 6 are fixed to the outer wall of the scavenging air box 100 by first fasteners 7, so as to limit the multiple liquid inlet pipes 22 between the limiting plate 6 and the outer wall of the scavenging air box 100. Optionally, the first fastener 7 is a bolt. Preferably, multiple limiting plates 6 are provided along the extension direction of the liquid inlet pipes 22 to improve the stability of the limiting of the liquid inlet pipes 22.

[0066] Optionally, see Figure 8 , Figure 9 and Figure 10 The spray pipe 11 has multiple mounting joints 111 on the side facing the air cooler core 200, each communicating with the inner cavity of the spray pipe 11. A spray head can be detachably installed in each mounting joint 111. Since the spray head is a consumable, detachable connection between it and the spray pipe 11 facilitates maintenance and replacement. However, because the wall of the spray pipe 11 is thin, direct installation of the spray head would weaken the connection between the spray head and the spray pipe 11 due to frequent disassembly and assembly, potentially damaging the spray pipe 11. Therefore, mounting joints 111 are provided to increase the contact area between the spray head and the spray pipe 11, thereby increasing the connection strength and preventing damage from frequent disassembly and assembly. Optionally, the mounting joint 111 has a threaded hole communicating with the inner cavity of the spray pipe 11, and the spray head has external threads, allowing it to be screwed into the mounting joint 111 via these threads. In this embodiment, multiple nozzles are arranged at equal intervals along the extension direction of the spray pipe 11 so that the spray pipe 11 can uniformly spray and clean the air cooler core 200.

[0067] Optionally, the spray pipe 11 has a first connecting portion 112 and a second connecting portion 113 at both ends, which are respectively connected to opposite side walls inside the scavenging box 100. The first connecting portion 112 and the second connecting portion 113 can stably fix the spray pipe 11 inside the scavenging box 100, preventing the spray pipe 11 from vibrating and detaching from the scavenging box 100 during the cleaning of the air cooler core 200, thus ensuring the stability of the device. In this embodiment, the first connecting portion 112 and the second connecting portion 113 are both cylindrical blocks provided at both ends of the spray pipe 11. Optionally, the first connecting portion 112, the second connecting portion 113, and the spray pipe 11 are integrally formed. Further, the spray pipe 11 is made of stainless steel, and the first connecting portion 112 and the second connecting portion 113 are both connected to the inner wall of the scavenging box 100 by welding. Welding saves materials and increases construction efficiency. (See reference...) Figure 2and Figure 3 The scavenging box 100 has a clearance hole on the side near the liquid inlet pipe 2, which is opposite to the spray pipe 11. One end of the liquid inlet branch pipe 22 passes through the clearance hole and is connected to the spray pipe 11. The clearance hole is used to avoid interference between the liquid inlet branch pipe 22 and the scavenging box 100.

[0068] Optionally, see Figure 9 The spray assembly 1 also includes a sealing member 12, which is used to seal the end of the spray pipe 11 away from the liquid inlet pipe 2. The sealing member 12 can seal the spray pipe 11, preventing leakage. When cleaning the air cooler core 200, the cleaning fluid is delivered to the spray pipe 11 through the liquid inlet pipe 2. Since the spray pipe 11 is sealed, the cleaning fluid can be sprayed through multiple nozzles on the spray pipe 11 to clean the air cooler core 200. Specifically, in this embodiment, the sealing member 12 is cylindrical, with a threaded section at one end. The end of the spray pipe 11 away from the liquid inlet pipe 2 has a threaded hole. The sealing member 12 is screwed into the threaded hole through the threaded section for sealing (see reference). Figure 2 (location within).

[0069] Of course, in other embodiments, the sealing member 12 may also be made of rubber material, with a groove inside, and the end of the spray pipe 11 away from the liquid inlet pipe 2 is sealed and inserted into the groove.

[0070] Optionally, the cleaning fluid source is located outside the main engine of the marine diesel engine, including a storage tank and a drive unit. The storage tank stores the cleaning fluid, the input end of the drive unit is connected to the storage tank, and the end of the inlet pipe 2 near the cleaning fluid source is connected to the output end of the drive unit. Starting the drive unit allows the cleaning fluid in the storage tank to be transported to the spray pipe 11 via the inlet pipe 2. Preferably, the cleaning fluid is clean water, which is readily available and low in cost. Optionally, the drive unit is a booster pump, which is small in size and operates smoothly.

[0071] The marine air cooler cleaning device provided in this embodiment has a compact structure, flexible layout, and high controllability. It can effectively supply cleaning fluid and spray evenly, resulting in good cleaning effect. It should be noted that the marine air cooler cleaning device provided in this embodiment can not only automatically clean the air cooler core 200, but also be manually controlled according to cleaning needs. The spray pipe 11 can be controlled by simply controlling the opening and closing of the control valve 5 on the corresponding liquid inlet pipe 22 through the control system, offering high flexibility. Similarly, the flow rate of cleaning fluid in the spray pipe 11 can be flexibly adjusted by controlling the regulating valve 3 through the control system.

[0072] This embodiment also provides a method for cleaning a marine air cooler, using the marine air cooler cleaning device described above, and includes the following steps:

[0073] S1. The control system of the marine diesel engine main unit monitors the operating power of the marine diesel engine main unit in real time and determines whether the operating power is less than the preset value. If so, the control regulating valve 3 adjusts the flow rate of the cleaning fluid in the liquid inlet pipe 2 to the first flow rate value and connects part of the spray pipe 11 to the cleaning fluid source to clean the air cooler core 200. If not, the control regulating valve 3 adjusts the flow rate of the cleaning fluid in the liquid inlet pipe 2 to the second flow rate value and connects all the spray pipes 11 to the cleaning fluid source. The second flow rate value is greater than the first flow rate value to clean the air cooler core 200.

[0074] S2. After the first preset cleaning time, disconnect the spray pipe 11 from the cleaning liquid source to end one cleaning cycle of the air cooler core 200.

[0075] S3. After the second preset time, the cleaning of the air cooler core 200 is started again, and steps S1 to S2 are executed in sequence.

[0076] The marine air cooler cleaning method provided in this embodiment can clean the air cooler core in a timed and quantitative manner according to the operating power of the marine diesel engine. Specifically, the control system of the marine diesel engine monitors the operating power of the marine diesel engine in real time. When the operating power is less than a preset value, the control system sends a control command to the regulating valve 3 to adjust the flow rate of the cleaning fluid in the inlet pipe 2 to a first flow rate value, while only connecting a portion of the spray pipes 11 to the cleaning fluid source to clean the air cooler core 200. When the operating power is greater than or equal to the preset value, the control system sends a control command to the regulating valve 3 to adjust the flow rate of the cleaning fluid in the inlet pipe 2 to a second flow rate value, while connecting all the spray pipes 11 to the cleaning fluid source to clean the air cooler core 200. After the first preset cleaning time, the spray pipe 11 is disconnected from the cleaning fluid source to complete one cleaning cycle. After the second preset time, the above steps are repeated to achieve timed and quantitative cleaning of the air cooler core. This prevents incomplete cleaning due to insufficient cleaning fluid or waste due to excessive cleaning fluid, thus achieving effective supply of cleaning fluid and saving costs.

[0077] It should be noted that when the operating power of the main unit is less than the preset value, i.e., the main unit operates at low speed, the amount of impurities entering the scavenging chamber 100 is limited. Therefore, only opening a portion of the spray pipes 11 to clean the air cooler core 200 is sufficient to meet the cleaning requirements. However, when the operating power of the main unit is greater than or equal to the preset value, i.e., the main unit operates at medium to high speed, the amount of impurities entering the scavenging chamber 100 increases. Therefore, all spray pipes 11 need to be opened to clean the air cooler core 200 to meet the cleaning requirements. This configuration enables the air cooler core 200 to be cleaned at regular intervals and in measured quantities according to the operating power of the main unit, thereby achieving effective supply of cleaning fluid and saving cleaning costs.

[0078] In step S1, the preset value of the marine diesel engine's operating power is set according to the specifications of the marine diesel engine main unit. For example, the preset value is set to 40% of the rated power of the marine diesel engine main unit. Further, the first flow rate value and the second flow rate value are flexibly set according to the cleaning requirements. For example, the first flow rate value is 20L / min and the second flow rate value is 40L / min.

[0079] Similarly, in steps S2 and S3, the first preset time and the second preset time are flexibly set according to the cleaning requirements. For example, the first preset time is 1 minute and the second preset time is 10 minutes.

[0080] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for cleaning a marine air cooler, applied to a marine air cooler cleaning device, characterized in that, The marine air cooler cleaning device comprises: A spray assembly (1) comprising a plurality of spray pipes (11), the plurality of spray pipes (11) are arranged in a scavenging box (100) of a marine air cooler in a first direction, each spray pipe (11) extends in a second direction, the second direction is perpendicular to the first direction, each spray pipe (11) is selectively communicated with a cleaning liquid source, and a side of each spray pipe (11) facing the air cooler core (200) is arranged with a plurality of nozzles in the second direction, and the cleaning liquid can be sprayed to clean the air cooler core (200) through the plurality of spray pipes (11) and the plurality of nozzles; A liquid inlet pipeline (2) having one end communicated with the cleaning liquid source and the other end communicated with the plurality of spray pipes (11); An adjusting valve (3) arranged on the liquid inlet pipeline (2) and communicated with a control system of a marine diesel engine main machine, used for adjusting the flow of the cleaning liquid in the liquid inlet pipeline (2) according to the operating condition of the marine diesel engine; The marine air cooler cleaning method comprises the following steps: S1, the control system of the marine diesel engine main machine monitors the operating power of the marine diesel engine main machine in real time, judges whether the operating power is less than a preset value, if yes, controls the adjusting valve (3) to adjust the flow of the cleaning liquid in the liquid inlet pipeline (2) to a first flow value, and communicates part of the spray pipes (11) with the cleaning liquid source to clean the air cooler core (200); if not, controls the adjusting valve (3) to adjust the flow of the cleaning liquid in the liquid inlet pipeline (2) to a second flow value, and communicates all the spray pipes (11) with the cleaning liquid source, the second flow value is greater than the first flow value, to clean the air cooler core (200); S2, after cleaning for a first preset time, disconnect the spray pipes (11) from the cleaning liquid source, and end the cleaning of the air cooler core (200) once; S3, after a second preset time, start the cleaning of the air cooler core (200) again, and sequentially execute steps S1 to S2.

2. The marine air cooler cleaning method according to claim 1, characterized by, The marine air cooler cleaning device further comprises a measuring component (4) arranged on the liquid inlet pipeline (2) and used for measuring the real-time flow of the cleaning liquid in the liquid inlet pipeline (2), and the measuring component (4) is communicated with the control system of the marine diesel engine main machine, and the control system can adjust the opening of the adjusting valve (3) according to the real-time flow and a target flow.

3. The marine air cooler cleaning method according to claim 2, characterized by, The liquid inlet pipeline (2) comprises a liquid inlet main pipe (21) and a plurality of liquid inlet branch pipes (22) communicated with the liquid inlet main pipe (21), the liquid inlet main pipe (21) is communicated with the cleaning liquid source, and the plurality of liquid inlet branch pipes (22) are communicated with the plurality of spray pipes (11) one by one.

4. The marine air cooler cleaning method according to claim 3, characterized by, The adjusting valve (3) and the measuring component (4) are arranged on the liquid inlet main pipe (21).

5. The marine air cooler cleaning method according to claim 3, characterized by, The marine air cooler cleaning device further comprises control valves (5), each of the liquid inlet branch pipes (22) is provided with a control valve (5), the control valve (5) is in communication connection with the control system of the marine diesel engine main machine, and is used for controlling the on-off of the liquid inlet branch pipe (22).

6. The marine air cooler cleaning method according to claim 3, characterized by, The liquid inlet main pipe (21) is provided with a plurality of connecting joints (211), and the plurality of connecting joints (211) correspond to the plurality of liquid inlet branch pipes (22) one by one. Each liquid inlet branch pipe (22) is in communication with the liquid inlet main pipe (21) through the corresponding connecting joint (211).

7. The marine air cooler cleaning method according to claim 3, characterized by, The marine air cooler cleaning device further comprises a limiting clamping plate (6), and the limiting clamping plate (6) can limit and fix the plurality of liquid inlet branch pipes (22) on the outer wall of the scavenging box (100).

8. The marine air cooler cleaning method according to any one of claims 1 to 7, characterized in that, The spray assembly (1) further comprises a plugging piece (12), and the plugging piece (12) is used for plugging one end of the spray pipe (11) away from the liquid inlet pipeline (2).

9. The marine air cooler cleaning method according to any one of claims 1 to 7, characterized in that, One side of the spray pipe (11) facing the air cooler core (200) is provided with a plurality of mounting joints (111) in communication with the inner cavity of the spray pipe (11), and one spray head is detachably mounted in each mounting joint (111).

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