Locomotive cooling tower roof filter screen purging device

Abstract

The utility model belongs to the locomotive cooling tower technical field, specifically provides a kind of locomotive cooling tower roof filter screen purging device, including filter screen, transition air duct frame and swing purging mechanism, the transition air duct frame is used to install in locomotive cooling tower roof, the filter screen cover is installed on the transition air duct frame, the swing purging mechanism is installed in the transition air duct frame;The swing purging mechanism includes rack, gas pipe and drive assembly, the rack is installed in the transition air duct frame, the gas pipe is movably installed on the rack, the drive assembly is fixed on the rack, the drive assembly is driven to connect on the gas pipe, the gas pipe is used to be connected to external air source cabinet, the gas pipe is equipped with the air nozzle towards the filter screen, image recognition module is equipped on the rack.The utility model solves the problem that locomotive cooling tower radiator is blocked by falling external sundries such as willow catkins and leaves, and being inhaled to locomotive cooling tower inside by fan.

Description

Technical Field

[0001] This utility model relates to the field of locomotive cooling tower technology, and in particular to a locomotive cooling tower roof filter cleaning device. Background Technology

[0002] As a core component of the locomotive cooling system, the cooling tower plays a crucial role in dissipating heat from critical equipment such as traction transformers and traction converters. However, in actual operation, frequent high-temperature alarms from cooling towers have become two major technical challenges plaguing railway operations.

[0003] According to on-site investigations, the main reason for the frequent high-temperature alarms in locomotive cooling towers is: Falling debris such as willow catkins and leaves are sucked into the locomotive's cooling tower by the fans, causing blockages in the radiator fins. The peak seasons for willow catkins (spring) and autumn (leaf fall) are the most problematic periods. Willow catkins, due to their fibrous nature, easily adhere to the radiator surface; leaves can be carried into the cooling system by airflow, breaking off and clogging the gaps in the radiator fins, thus reducing ventilation. Statistics from a railway bureau show that for locomotives operating in areas with abundant vegetation, temperature alarms caused by willow catkin blockage account for 45% of all alarms annually in April and May, while alarms caused by leaf fall account for 30% in October and November.

[0004] Therefore, it is necessary to provide a device that can prevent external debris such as willow catkins and leaves from falling into the locomotive cooling tower in order to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of this invention is to provide a locomotive cooling tower roof filter cleaning device, which aims to solve the problem that the heat sinks in existing locomotive cooling towers are easily blocked by debris, thus affecting heat dissipation.

[0006] To achieve the above objectives, this utility model proposes a locomotive cooling tower roof filter cleaning device, comprising a filter, a transition air duct frame, and a swing cleaning mechanism. The transition air duct frame is used to install on the roof of the locomotive cooling tower, the filter is covered and installed on the transition air duct frame, and the swing cleaning mechanism is installed inside the transition air duct frame. The swing cleaning mechanism includes a frame, an air pipe, and a drive assembly. The frame is installed inside the transition air duct frame, the air pipe is movably installed on the frame, and the drive assembly is fixed to the frame and driven by the air pipe. The air pipe is used to connect to an external air source cabinet and has an air nozzle facing the filter. An image recognition module is provided on the frame.

[0007] A further improvement of the locomotive cooling tower roof filter blowing device of this utility model is that the frame includes an outer frame, a fixed rod and a movable rod. The fixed rod is fixed inside the outer frame, the movable rod is movably installed inside the outer frame, the movable rod is connected to the air pipe, and the drive assembly is driven to connect to the movable rod.

[0008] A further improvement of the locomotive cooling tower roof filter blowing device of this utility model is that the drive assembly includes a drive member, a cam, a connecting rod and a first hinge connecting rod. The drive member is fixed to the fixed rod, the cam is fixed to the output end of the drive member, the connecting rod is fixed to the moving rod, and the first hinge connecting rod is connected between the cam and the connecting rod.

[0009] A further improvement of the locomotive cooling tower roof filter blowing device of this utility model is that the moving rod is provided with a second hinge connecting rod, which is connected to the air pipe.

[0010] A further improvement of the locomotive cooling tower roof filter blowing device of this utility model is that the number of air pipes is multiple, the number of second hinge connecting rods is twice the number of air pipes, and one air pipe is connected to two second hinge connecting rods.

[0011] A further improvement of the locomotive cooling tower roof filter blowing device of this utility model is that the outer frame is provided with a bearing seat for the movable installation of the air pipe.

[0012] A further improvement of the locomotive cooling tower roof filter blowing device of this utility model is that the outer frame is provided with a fixing plate for connecting the transition air duct frame.

[0013] A further improvement of the locomotive cooling tower roof filter blowing device of this utility model is that the air pipe is provided with multiple air nozzles, and the multiple air nozzles are spaced apart on the air pipe.

[0014] This utility model also provides a method for blowing the filter screen on the roof of a locomotive cooling tower, including the following steps: Provide the above-mentioned locomotive cooling tower roof filter blowing device; The locomotive's operating status is detected; if the locomotive is stationary, proceed to the next step. The air pressure in the locomotive's air cylinder is checked. When the air pressure in the air cylinder reaches the working threshold, the next step is performed. The image recognition module is activated to scan the debris coverage on the filter screen surface and determine whether the debris coverage is greater than the coverage threshold. If the debris coverage is greater than the coverage threshold, the drive component is activated, which moves the air tube and blows air onto the filter screen through the air nozzle. If the debris coverage is not greater than the coverage threshold, the image recognition module and the swing blowing mechanism are put into standby mode.

[0015] A further improvement of the locomotive cooling tower roof filter cleaning method of this utility model is that, when judging whether the debris coverage rate is greater than the coverage threshold, if the debris coverage rate is greater than four times the coverage threshold, the operating speed of the drive component is increased and the running time of the swing cleaning mechanism is extended until the debris coverage rate is not greater than the coverage threshold.

[0016] The locomotive cooling tower roof filter cleaning device in this invention effectively prevents external debris from falling into the locomotive cooling tower by blocking the filter. An image recognition module scans the debris coverage on the filter; when there is significant debris, it controls a swinging cleaning mechanism to blow air from the inside of the filter, thus blowing the debris away from the filter. This prevents debris from obstructing the cooling tower's fan from drawing air outwards. Through periodic cleaning, external debris above the filter is effectively blown under the locomotive, ensuring sufficient ventilation for the cooling tower's fan. This effectively solves the problem of radiator blockage caused by falling debris such as willow catkins and leaves being sucked into the cooling tower by the fan. The image recognition module enables automated control of the swinging cleaning mechanism, resulting in more precise and efficient cleaning operations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is an external schematic diagram showing the installation status of the locomotive cooling tower roof filter blowing device of this utility model; Figure 2 This is an internal schematic diagram showing the installation state of the locomotive cooling tower roof filter blowing device of this utility model; Figure 3 This is a schematic diagram of the upper structure of the filter screen of the locomotive cooling tower roof filter screen blowing device of this utility model; Figure 4 This is a schematic diagram of the lower structure of the filter screen of the locomotive cooling tower roof filter screen blowing device of this utility model; Figure 5 This is a top view of the swing-blowing mechanism of the locomotive cooling tower roof filter blowing device of this utility model; Figure 6 This is a schematic diagram of the swing-blowing mechanism of the locomotive cooling tower roof filter blowing device of this utility model; Figure 7This is a schematic diagram showing the connection between the drive assembly and the air pipe of the locomotive cooling tower roof filter blowing device of this utility model; Figure 8 This is a flowchart of the method for purging the roof filter screen of the locomotive cooling tower according to this utility model.

[0019] Explanation of icon numbers: 1. Filter screen; 101. Semi-circular arc groove screen; 2. Swinging blowing mechanism; 201. Outer frame; 202. Bearing seat; 203. Fixing plate; 204. Fixing rod; 205. Moving rod; 206. Air pipe; 207. Air nozzle; 208. Driving component; 209. Cam; 210. Connecting rod; 211. Air inlet; 212. Second hinge connecting rod; 213. Fixing seat; 214. First hinge connecting rod; 215. Camera; 3. Transition air duct frame. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] like Figures 1-7 As shown, this utility model proposes a cleaning device for the roof filter screen of a locomotive cooling tower, including a filter screen 1, a transition air duct frame 3, and a swing cleaning mechanism 2. The transition air duct frame 3 is used to install on the roof of the locomotive cooling tower, and the filter screen 1 is installed on the transition air duct frame 3. The swing cleaning mechanism 2 is installed inside the transition air duct frame 3. The swing cleaning mechanism 2 includes a frame, an air pipe 206, and a drive assembly. The frame is installed inside the transition air duct frame 3, the air pipe 206 is movably installed on the frame, and the drive assembly is fixed to the frame and driven by the air pipe 206. The air pipe 206 is used to connect to an external air source cabinet. The air pipe 206 has an air nozzle 207 facing the filter screen 1. An image recognition module is provided on the frame. An air inlet 211 for connecting to the external air source cabinet is provided on the bottom surface of the air pipe 206.

[0026] Specifically, the filter screen 1 device includes a semi-circular arc groove mesh 101, which is spliced ​​together to form a locomotive cooling tower with the same length and width, so that the entire filter screen 1 device can be fixed on the top of the locomotive cooling tower. The semi-circular arc groove mesh 101 is provided with dense air outlet holes, which can effectively prevent dirt and blockage from falling into the locomotive cooling tower. The dirt and blockage fall to both sides along the semi-circular arc groove mesh 101 by inertia, which effectively ensures the ventilation volume required by the cooling tower fan.

[0027] Preferred, such as Figure 5 and Figure 6 As shown, the frame includes an outer frame 201, fixed rods 204, and movable rods 205. The fixed rods 204 are fixed inside the outer frame 201, and the movable rods 205 are movably installed inside the outer frame 201. The movable rods 205 are connected to the air pipe 206, and the drive assembly is driven by the movable rods 205. In this embodiment, two fixed rods 204 are provided in the middle of the outer frame 201 to strengthen the rigidity of the entire frame. The length of the movable rods 205 is less than the length of the fixed rods 204, allowing the movable rods 205 a certain amount of movement space within the outer frame 201.

[0028] Preferred, such as Figure 7As shown, the drive assembly includes a drive member 208, a cam 209, a connecting rod 210, and a first hinge connecting rod 214. The drive member 208 is fixed to the fixed rod 204, the cam 209 is fixed to the output end of the drive member 208, the connecting rod 210 is fixed to the moving rod 205, and the first hinge connecting rod 214 connects the cam 209 and the connecting rod 210. In this embodiment, the drive member 208 is a motor, and the cam 209 is fixed to the motor output shaft. The outer frame 201 is provided with a mounting base 213 for mounting the drive member 208.

[0029] Each locomotive has an internal air supply cabinet containing an air cylinder and a compressor. Gas from the air cylinder is connected to the air inlet 211 of the air pipe 206 via a flexible hose. When the locomotive enters a stopped state within the depot, the air supply to the air cylinder and the motor of the oscillating blowing device are activated. The motor rotates, causing the air pipe 206 to oscillate left and right. Gas blown out through the air nozzle 207 from the air pipe 206 blows external debris that has fallen onto the filter screen 1 to the outside of the locomotive. This effectively ensures the ventilation volume required by the locomotive cooling tower fan and solves the problem of high-temperature alarms caused by radiator blockage due to willow catkins and leaves covering the surface of the locomotive cooling tower radiator.

[0030] Preferably, the moving rod 205 is provided with a second hinge connecting rod 212, which is connected to the air pipe 206, so that the motor drives the first hinge connecting rod 214 to rotate, and the first hinge connecting rod 214 drives the second hinge connecting rod 212 to swing left and right through the moving rod 205, thereby causing the air pipe 206 to swing left and right.

[0031] Preferably, there are multiple air tubes 206, and the number of second hinge connecting rods 212 is twice the number of air tubes 206. Each air tube 206 is connected to two second hinge connecting rods 212. The two second hinge connecting rods 212 connected to each air tube 206 are located on both sides of the moving rod 205 to ensure a stable connection between the moving rod and the air tube 206.

[0032] Preferably, the outer frame 201 is provided with a bearing seat 202 for the movable installation of the air pipe 206. The bearing seat 202 contains a bearing, and the left and right ends of the air pipe 206 are installed in the inner ring of the bearing. The inner ring of the bearing moves while the outer ring of the bearing is fixed, mainly serving to support the rotation of the air pipe 206.

[0033] Preferably, the outer frame 201 is provided with fixing plates 203 for connecting the transition duct frame 3. The fixing plates 203 are L-shaped and there are at least four of them. The outer frame 201 is rectangular, with a fixing plate 203 at each of its four corners, so that the entire swing-blowing device is fixed to the left and right sides of the inner wall of the transition duct frame 3 by the L-shaped fixing plates 203. Therefore, the entire swing-blowing device is close to the filter screen 1, facilitating the subsequent blowing of debris above the filter screen 1.

[0034] Preferably, the air pipe 206 is provided with a plurality of air nozzles 207, and the plurality of air nozzles 207 are spaced apart on the air pipe 206.

[0035] like Figure 8 As shown, this utility model also provides a method for blowing the filter screen on the roof of a locomotive cooling tower, including the following steps: Provide the above-mentioned locomotive cooling tower roof filter blowing device; The locomotive's operating status is detected; if the locomotive is stationary, proceed to the next step. The air pressure in the locomotive's air cylinder is checked. When the air pressure in the air cylinder reaches the working threshold, the next step is performed. The image recognition module is activated to scan the debris coverage rate on the surface of the filter screen 1 and determine whether the debris coverage rate is greater than the coverage threshold. If the debris coverage rate is greater than the coverage threshold, the drive component is activated, which moves the air tube 206 and blows air onto the filter screen 1 through the air nozzle 207. If the debris coverage rate is not greater than the coverage threshold, the image recognition module and the swing blowing mechanism 2 are put into standby mode.

[0036] Specifically, when the locomotive is running, the internal fans of the cooling tower need to draw air from the top to cool the radiators at the bottom of the cooling tower. Therefore, the oscillating purging mechanism 2 does not perform purging operations when the locomotive is not stopped; when the locomotive is stopped, the internal fans of the cooling tower stop; at this time, the purging device can be used for purging.

[0037] Since the volume of the air cylinder in the locomotive is fixed (760 bar when the air cylinder is full of gas), it is mainly used for locomotive braking, and gas is consumed during braking. In this embodiment, the working threshold is 200 bar. When the air cylinder pressure is lower than the 200 bar threshold, the air cylinder needs to be replenished with gas by the compressor; when the air cylinder pressure is higher than the 200 bar threshold, the next step can be performed, and the intelligent camera 215 can be activated for identification.

[0038] The debris coverage rate is calculated as: total debris coverage area / total area of ​​filter screen 1. In this embodiment, the coverage threshold is 10%. The image recognition module includes a camera 215 fixed to the outer frame 201 and a controller, which is connected to the drive unit 208 and the camera 215. Debris coverage rate recognition technology can be found in patents with publication numbers CN113850195B and CN115147672A.

[0039] Furthermore, camera 215 scans filter 1 every 5 seconds, providing feedback on the debris residue rate. If the residue rate is ≤5%, cleaning is considered complete, and blowing stops. If the residue rate is >5%, blowing continues, and the oscillation frequency of air hose 206 is adjusted, such as increasing the oscillation speed. The motor speed is 5 RPM~50 RPM, flexibly adjusted according to the debris coverage rate. The controller records the blowing duration, debris removal rate, and energy consumption data. A cleaning report is generated and stored in the locomotive maintenance system. When camera 215 malfunctions, the oscillating blowing mechanism 2 automatically switches to timed blowing mode (default 30 seconds). When air pressure / motor abnormalities occur, it immediately stops and sends an alarm to the locomotive maintenance system.

[0040] Preferably, when determining whether the debris coverage rate exceeds the coverage threshold, if the debris coverage rate exceeds four times the coverage threshold (greater than 40%), the operating speed of the drive component is increased, and the running time of the swing blowing mechanism 2 is extended until the debris coverage rate does not exceed the coverage threshold. The controller dynamically adjusts the swing blowing mechanism 2 based on the real-time detection results fed back by the camera 215. When there is a large amount of debris remaining on the filter screen 1 (greater than 40%), the motor output speed is increased, the swinging motion is accelerated, the blowing is repeated, and the blowing time is extended. The controller uploads the blowing data for each cycle to the cloud to optimize the coverage threshold (e.g., seasonally adjusting the threshold for judging willow catkins). This utility model's locomotive cooling tower roof filter blowing method is precise and energy-saving, avoids over-blowing, reduces air source and motor losses, and is adaptable to the environment, handling different types of debris in different seasons (spring willow catkins or autumn fallen leaves). It can support operation and maintenance decisions based on cleaning reports and is traceable.

[0041] The controller of this invention can adjust the purging strategy according to specific environmental conditions. The specific adjustment rules are as follows: (1) Dynamic graded response: Normal mode: If the debris coverage is slightly high (e.g., 10%~20%), the blowing speed will be increased slightly.

[0042] Enhanced mode: If the debris coverage is very high (e.g., >40%), the rotation speed will be greatly increased and the blowing time will be extended until the residual rate is ≤5%, at which point the blowing will stop.

[0043] Extreme mode: If the coverage does not decrease after several consecutive cleaning cycles, an alarm will be triggered or the backup cleaning device will be activated.

[0044] (2) Intelligent learning adjustment: The system will record the effect of each purging (e.g., how much debris was reduced after increasing the rotation speed).

[0045] After long-term operation, it automatically optimizes "how much coverage requires how fast the rotation speed" to avoid wasting energy or incomplete cleaning.

[0046] Seasonal adjustments: For example, in spring when there are many willow catkins, the system automatically lowers the "alarm threshold" to make the image recognition module more sensitive; in winter when there is less dust, the threshold is raised to avoid frequent startups.

[0047] (3) Adjustments should be made in conjunction with environmental factors: In addition to the coverage of debris, cleaning strategies can be adjusted by combining data such as wind speed, humidity, and temperature.

[0048] For example, if debris tends to accumulate on windy days, the blowing and sweeping should be intensified in advance; if debris tends to stick on rainy days, the blowing and sweeping time should be extended.

[0049] The calculation expression involved in the controller of this utility model is as follows: 1) Formula for calculating motor speed: Rotational speed = Base rotational speed × (1 + Debris coverage rate / Coverage threshold); If the debris coverage is twice the coverage threshold, the rotation speed will increase by two times. If it exceeds four times (40%), the rotation speed will increase significantly and the working time will be extended.

[0050] 2) Optimization formula for purging time: Purging time = Base time × (Debris coverage rate / Coverage threshold) 2 ; The more debris there is, the more the cleaning time increases exponentially (for example, if the coverage increases by 2 times, the cleaning time increases by 4 times).

[0051] 3) Cloud-based automatic threshold optimization: New coverage threshold = Old coverage threshold × (1 + seasonal adjustment coefficient + weather impact coefficient). Seasonal adjustment factor: +0.3 in spring (more sensitive), -0.1 in winter (reduces false triggers).

[0052] Weather impact coefficient: +0.2 for windy days and -0.05 for rainy days.

[0053] like Figure 8The diagram shows a flowchart of the locomotive cooling tower roof filter cleaning method of this utility model. The specific process is as follows: The controller performs system start-up condition detection (locomotive stopped, air pressure normal, camera initialized), then intelligently identifies the debris coverage rate (analyzes the debris coverage rate), and determines whether the coverage rate is greater than the coverage threshold. If not, the system goes into standby (energy saving). If so, the cleaning process is started (air cylinder valve opened, motor started). Dynamic cleaning is performed (air pipe swing + air jet, real-time camera detection). The real-time intelligent identification of debris coverage rate is used to analyze whether the residual rate is less than or equal to 5%. If so, cleaning is stopped (data recorded). If not, secondary enhanced cleaning is performed (locating stubborn areas, fixed-point cleaning). Finally, cleaning is stopped (data recorded).

[0054] The locomotive cooling tower roof filter cleaning device of this utility model effectively prevents external debris from falling into the locomotive cooling tower by using a filter screen 1 to block it. An image recognition module scans the debris coverage on the filter screen 1. When there is a significant amount of debris, the swinging cleaning mechanism 2 is controlled to blow air from the inside towards the filter screen 1, thus blowing the debris away from the filter screen 1. This prevents debris from blocking the cooling tower's fan from drawing air outwards. Through periodic cleaning, external debris above the filter screen 1 is effectively blown under the locomotive, ensuring the required ventilation volume for the locomotive cooling tower fan. This effectively solves the problem of radiator clogging caused by falling debris such as willow catkins and leaves being sucked into the locomotive cooling tower by the fan. This utility model uses an image recognition module to automate the control of the swinging cleaning mechanism 2, achieving more precise and efficient cleaning operations.

[0055] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A device for blowing away the filter screen on the roof of a locomotive cooling tower, characterized in that, The system includes a filter screen (1), a transition air duct frame (3), and a swing blowing mechanism (2). The transition air duct frame (3) is used to install on the roof of the locomotive cooling tower. The filter screen (1) is installed on the transition air duct frame (3). The swing blowing mechanism (2) is installed inside the transition air duct frame (3). The swing blowing mechanism (2) includes a frame, an air pipe (206), and a drive assembly. The frame is installed inside the transition air duct frame (3). The air pipe (206) is movably installed on the frame. The drive assembly is fixed on the frame and drives the air pipe (206). The air pipe (206) is used to connect to an external air source cabinet. The air pipe (206) is provided with an air nozzle (207) facing the filter screen (1). The frame is provided with an image recognition module.

2. The locomotive cooling tower roof filter blowing device as described in claim 1, characterized in that, The frame includes an outer frame (201), a fixed rod (204), and a movable rod (205). The fixed rod (204) is fixed inside the outer frame (201), and the movable rod (205) is movably installed inside the outer frame (201). The movable rod (205) is connected to the air pipe (206), and the drive assembly is driven to the movable rod (205).

3. The locomotive cooling tower roof filter cleaning device as described in claim 2, characterized in that, The drive assembly includes a drive member (208), a cam (209), a connecting rod (210), and a first hinge connecting rod (214). The drive member (208) is fixed on the fixed rod (204), the cam (209) is fixed to the output end of the drive member (208), the connecting rod (210) is fixed to the moving rod (205), and the first hinge connecting rod (214) is connected between the cam (209) and the connecting rod (210).

4. The locomotive cooling tower roof filter cleaning device as described in claim 3, characterized in that, The moving rod (205) is provided with a second hinge connecting rod (212), which is connected to the air pipe (206).

5. The locomotive cooling tower roof filter blowing device as described in claim 4, characterized in that, The number of air tubes (206) is multiple, and the number of second hinge connecting rods (212) is twice the number of air tubes (206). One air tube (206) is connected to two second hinge connecting rods (212).

6. The locomotive cooling tower roof filter cleaning device as described in claim 2, characterized in that, The outer frame (201) is provided with a bearing seat (202) for the movable installation of the air pipe (206).

7. The locomotive cooling tower roof filter blowing device as described in claim 2, characterized in that, The outer frame (201) is provided with a fixing plate (203) for connecting the transition air duct frame (3).

8. The locomotive cooling tower roof filter cleaning device as described in claim 1, characterized in that, The air pipe (206) is provided with a plurality of air nozzles (207), and the plurality of air nozzles (207) are spaced apart on the air pipe (206).

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