Cooling tower water collecting tray cleaning method and automatic cleaning device thereof

Abstract

The invention discloses a cooling tower water collecting tray cleaning method and an automatic cleaning device thereof.The method specifically comprises the following steps that S1, preparation before cleaning is conducted, specifically, before a certain cooling tower starts to be cleaned, firstly, an automatic water supplementing valve, a blow-down valve and a water return valve of the cooling tower are accurately found and closed through a control system, and in the closing process, the blow-down valve and the water return valve are closed; the closing state of the valve is closely observed to ensure that the valve is completely closed, and water is prevented from flowing in or out in the cleaning process to affect the cleaning effect and cause waste of water resources. Through mutual cooperation of the first guide rail, the second guide rail, the first brush, the second brush, the first power assembly, the second power assembly, the first power steering assembly, the second power steering assembly and the control box, cleaning of the cooling tower water collecting tray is achieved, the cleaning problem is solved, the operation difficulty is remarkably reduced, the cleaning process is standardized, and the cleaning efficiency is improved. The cooling water quality is practically guaranteed, the heat exchange efficiency is improved, and the cooling function is fully played.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling tower water collecting tray cleaning, and particularly to a cleaning method for a cooling tower water collecting tray and an automatic cleaning device therefor. Background Art

[0002] In many industrial production processes and application scenarios such as the air conditioning systems of large buildings, the cooling tower, as an indispensable key device, undertakes a crucial cooling task. Its basic working principle is to use water as a circulating cooling medium, and through the physical process of heat exchange, absorb the heat generated during the system operation and discharge it into the atmosphere, thereby achieving the purpose of reducing the water temperature and ensuring that the entire system can operate stably in a suitable temperature environment.

[0003] However, the cooling tower faces many severe challenges during actual operation. On the one hand, since the cooling water continuously absorbs heat, the water temperature remains at a relatively high level for a long time. This warm and humid environment is like a breeding ground for bacteria, creating excellent conditions for the reproduction of various microorganisms. On the other hand, the cooling tower is usually installed in an outdoor open environment, which makes it inevitably exposed to complex natural environmental factors. During daily operation, sand and dust particles in the atmosphere will enter the interior of the cooling tower along with the air flow. At the same time, impurities and garbage accumulated in the pipeline during long-term use will gradually mix into the cooling water. Eventually, these substances are extremely likely to deposit in the water collecting tray of the cooling tower.

[0004] The existing cleaning methods for cooling towers have obvious limitations and deficiencies. The cleaning operation is extremely difficult. Due to the structural design of the water collecting tray and its complex internal environmental conditions, conventional cleaning tools and methods are difficult to reach every corner, thus unable to achieve a comprehensive and thorough cleaning. More importantly, the cleaning work largely depends on the self-awareness and responsibility of workers. This means that the quality and frequency of the cleaning work lack stable and reliable guarantees. The differences in the operation levels and work attitudes of different workers are likely to result in uneven cleaning effects. Such an unstable cleaning situation makes it difficult to effectively guarantee the quality of the cooling water. A large number of bacteria, impurities, and sediments in the water will adhere to the heat exchange surface, forming a dirt layer, seriously hindering heat transfer, and thus having a significant negative impact on the heat exchange effect of the cooling tower, reducing the operating efficiency of the entire cooling system, increasing energy consumption, and even possibly causing equipment failures, affecting the normal progress of production or use. Summary of the Invention

[0005] The purpose of the present invention is to provide a cleaning method for a cooling tower water collecting tray and an automatic cleaning device therefor, so as to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A method for cleaning the water collecting tray of a cooling tower, specifically including the following steps:

[0007] S1. Preparation before cleaning: Before starting to clean a certain cooling tower, first accurately find and close the automatic water replenishment valve, sewage discharge valve, and return water valve of the cooling tower through the control system. During the closing process, closely observe the closing state of the valves to ensure that the valves are completely closed, preventing water from flowing in or out during the cleaning process, which may affect the cleaning effect and cause waste of water resources;

[0008] S2. Brush cleaning operation: After the valves are closed in place, start the time control device, and drive the first brush and the second brush to comprehensively and carefully clean the water collecting tray of the cooling tower according to the preset cleaning mode and parameters. During the cleaning process, the operator should closely monitor the operation conditions of the first brush and the second brush, such as the rotation speed and swing amplitude of the first brush and the second brush. At the same time, the cleaning progress and effect of the water collecting tray can be viewed in real time through the monitoring equipment installed on site;

[0009] S3. Sewage discharge and water replenishment operation: After cleaning, open the sewage discharge valve of the cooling tower to discharge the sewage and dirt generated during the cleaning process. During the sewage discharge process, reasonably control the sewage discharge time according to the flow rate and turbidity of the sewage to ensure that the sewage and impurities in the water collecting tray are completely discharged. After the sewage discharge is completed, close the sewage discharge valve and open the automatic water replenishment device to start replenishing water into the cooling tower;

[0010] S4. Resume normal operation: After the water replenishment is completed, open the outlet valve of the cooling tower to restore the cooling tower to the normal operation state. During this process, continuously monitor the operating parameters of the cooling tower, such as water temperature, water pressure, water flow rate, etc., to ensure the stable operation of the equipment and that all indicators meet the requirements of normal operation. According to the same process, carry out off-peak cleaning operations on other cooling towers in turn to ensure the stable operation of the overall system during the cleaning process of multiple cooling towers.

[0011] Preferably, if any abnormal situation occurs during the cleaning operation of the first brush and the second brush, such as the first brush and the second brush getting stuck or the power device being overloaded, the cleaning operation should be immediately suspended, the problem should be promptly investigated and solved, and then the cleaning should be continued.

[0012] Preferably, the water level change is monitored in real time, and when the water level reaches the preset standard water level, the water replenishment operation is automatically stopped.

[0013] An automatic cleaning device for the water collecting tray of a cooling tower includes a first cleaning mechanism, a second cleaning mechanism, a control box, and the above-mentioned method for cleaning the water collecting tray of a cooling tower. The first cleaning mechanism includes a first guide rail, a first brush, a first power assembly, and a first power steering assembly. The second cleaning mechanism includes a second guide rail, a second brush, a second power assembly, and a second power steering assembly.

[0014] Preferably, the first power assembly is arranged on the first guide rail, and the second power assembly is arranged on the second guide rail.

[0015] Preferably, the first power steering assembly is connected to the first power assembly, and two first brushes are respectively connected to the output shaft of the first power steering assembly.

[0016] Preferably, the second power steering assembly is arranged below the second power assembly, and two second brushes are respectively connected to the output shaft of the second power steering assembly. The second brush at the top is rotatably connected to the second power assembly.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] Through the mutual cooperation of the first guide rail, the second guide rail, the first brush, the second brush, the first power assembly, the second power assembly, the first power steering assembly, the second power steering assembly and the control box, the present invention realizes the cleaning of the cooling tower water collecting tray, breaks through the cleaning problem, significantly reduces the operation difficulty, standardizes the cleaning process, effectively guarantees the quality of the cooling water, improves the heat exchange efficiency, and gives full play to the cooling function. Brief Description of the Drawings

[0019] Figure 1 It is a schematic three-dimensional structure diagram of the present invention.

[0020] In the figure: 100 first cleaning mechanism, 200 second cleaning mechanism, 1 first guide rail, 2 second guide rail, 3 first brush, 4 second brush, 5 first power assembly, 6 second power assembly, 7 first power steering assembly, 8 second power steering assembly, 9 control box, 10 support frame. Detailed Embodiments

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1 , a method for cleaning a cooling tower water collecting tray, specifically including the following steps:

[0023] S1. Preparation before cleaning: Before starting to clean a certain cooling tower, first accurately locate and close the automatic water replenishment valve, sewage discharge valve, and return water valve of the cooling tower through the control system. During the closing process, closely observe the closing state of the valves to ensure that the valves are completely closed, preventing water from flowing in or out during the cleaning process, which may affect the cleaning effect and cause waste of water resources;

[0024] S2. Brush cleaning operation: After the valves are closed in place, start the time control device. According to the preset cleaning mode and parameters, drive the first brush 3 and the second brush 4 to conduct a comprehensive and detailed cleaning of the cooling tower water collecting tray. During the cleaning process, the operator should closely monitor the operating conditions of the first brush 3 and the second brush 4, such as the rotation speed and swing amplitude of the first brush 3 and the second brush 4. At the same time, use the monitoring equipment installed on-site to view the cleaning progress and effect of the water collecting tray in real time. If any abnormal situation occurs during the cleaning operation of the first brush 3 and the second brush 4, such as jamming of the first brush 3 and the second brush 4, overload of the power device, etc., the cleaning operation should be immediately paused, and the problem should be promptly investigated and solved before continuing the cleaning;

[0025] S3. Sewage discharge and water replenishment operation: After cleaning, open the sewage discharge valve of the cooling tower to discharge the sewage and dirt generated during the cleaning process. During the sewage discharge process, reasonably control the sewage discharge time according to the flow rate and turbidity of the sewage to ensure that the sewage and impurities in the water collecting tray are completely discharged. After the sewage discharge is completed, close the sewage discharge valve and open the automatic water replenishment device to start replenishing water into the cooling tower. During the water replenishment process, monitor the water level change in real time. When the water level reaches the preset standard water level, automatically stop the water replenishment operation;

[0026] S4. Resume normal operation: After the water replenishment is completed, open the outlet valve of the cooling tower to restore the cooling tower to the normal operation state. During this process, continuously monitor the operating parameters of the cooling tower, such as water temperature, water pressure, water flow rate, etc., to ensure stable operation of the equipment and that all indicators meet the requirements of normal operation. According to the same process, conduct off-peak cleaning operations on other cooling towers in turn to ensure the stable operation of the overall system during the cleaning process of multiple cooling towers.

[0027] An automatic cleaning device for a cooling tower water collecting tray, comprising a first cleaning mechanism 100, a second cleaning mechanism 200, a control box 9, and a cleaning method for the cooling tower water collecting tray. The first cleaning mechanism 100 includes a first guide rail 1, a first brush 3, a first power assembly 5, and a first power steering assembly 7. The second cleaning mechanism 200 includes a second guide rail 2, a second brush 4, a second power assembly 6, and a second power steering assembly 8.

[0028] The first power assembly 5 is arranged on the first guide rail 1, and the second power assembly 6 is arranged on the second guide rail 2.

[0029] The first power steering assembly 7 is connected to the first power assembly 5. Two first brushes 3 are respectively connected to the output shaft of the first power steering assembly 7. The second power steering assembly 8 is arranged below the second power assembly 6. Two second brushes 4 are respectively connected to the output shaft of the second power steering assembly 8. The second brush 4 located at the top is rotationally connected to the second power assembly 6. The power steering assembly can drive the brushes to rotate for cleaning.

[0030] Furthermore, during use, start the first power assembly 5 and the second power assembly 6. The first power assembly 5 drives the first brush 3 and the first power steering assembly 7 to move horizontally on the first guide rail 1. The second power assembly 6 can drive the second brush 4 and the second power steering assembly 8 to move horizontally on the second guide rail 2. The first power steering assembly 7 drives the first brush 3 to rotate, and the second power steering assembly 8 drives the second brush 4 to rotate, which is driven by the control box 9.

[0031] Furthermore, the first brush 3 and the second brush 4: As the key components directly contacting the cooling tower water basin and performing the cleaning task, the brush design adopted draws on the principles and structures of automotive cleaning brushes. Considering the particularity of the cleaning environment of the cooling tower water basin, the strength of the brush connecting rod and the brush density will be accurately determined and optimally adjusted in later practice according to factors such as the working conditions during actual use, the cleaning effect, and the specific structural characteristics of the water basin. Such a design can ensure that the brushes can meet different cleaning requirements while maximizing the cleaning efficiency and quality, and prolonging the service life of the brushes.

[0032] Furthermore, the first power assembly 5 and the second power assembly 6: An electric motor is selected as the power source for the entire cleaning device. To ensure safe and stable operation in the humid cooling tower environment, the waterproof level of the electric motor refers to the standard of submersible pumps with excellent performance and strong waterproof ability. In addition, to further ensure the safety of operators and equipment, the control system is specifically equipped with a leakage protection device. Once a leakage occurs, it can quickly cut off the power supply to avoid safety accidents. The power device is also provided with a professional card slot, which is exquisitely designed and can achieve a tight and precise connection with the power steering device, providing a solid foundation for the effective transmission of power and the stable operation of the device. The electric power drives the rollers to move horizontally on the guide rail through the output shaft, enabling the power assembly to drive the power steering assembly and the brushes to move horizontally.

[0033] Furthermore, the first guide rail 1 and the second guide rail 2, the slide rails serve as the tracks for the operation of the cleaning device. This unique guide rail design is an important guarantee for achieving precise cleaning. By making full use of the power output of the power assembly, the automatic transmission of the cleaning device on the slide rails is realized. This intelligent upgrade can not only greatly reduce the labor intensity of workers but also significantly improve the efficiency and accuracy of the cleaning operation.

[0034] Furthermore, the first power steering assembly 7 and the second power steering assembly 8: are the key hubs of the entire cleaning system. It cleverly realizes the conversion of the direction of force. Its internal adopts an advanced gear conversion structure, which can accurately convert the vertical rotational force output by the motor into a horizontal driving force, providing the necessary power support for the horizontal cleaning operation of the brush in the water collecting tray. A professional card slot is provided on the outside of the power steering assembly. The design of this card slot is completely matched with the interfaces of the brush and the power assembly, enabling the quick and stable clamping of the brush or the power assembly, thereby ensuring the structural stability during the operation of the entire cleaning device and the reliability of power transmission.

[0035] Furthermore, the first guide rail 1 and the second guide rail 2 are installed on the support frame 10, and the control box 9 is installed on the support frame 10.

[0036] Through the mutual cooperation of the first guide rail 1, the second guide rail 2, the first brush 3, the second brush 4, the first power assembly 5, the second power assembly 6, the first power steering assembly 7, the second power steering assembly 8 and the control box 9, the cleaning of the cooling tower water collecting tray is realized, breaking through the cleaning problem, significantly reducing the operation difficulty, standardizing the cleaning process, effectively ensuring the quality of the cooling water, improving the heat exchange efficiency, and giving full play to the cooling function.

[0037] Furthermore, the cooling tower can be cleaned regularly according to the preset time interval. Through an automated or semi-automated operation process, the cleaning steps are greatly simplified, making the originally complex and arduous cleaning task easier to implement, effectively reducing the overall difficulty of the cleaning work, and significantly improving the cleaning efficiency. The cleaning device, with its stable and reliable operation mechanism, strictly executes tasks according to the established cleaning procedures and parameters, without being interfered by human factors, effectively avoiding the problem of non-standard cleaning caused by individual differences and subjective factors of workers. In this way, the cleaning work becomes more regular and reliable, and can continuously and stably clean the cooling tower, timely removing impurities such as bacteria, sand and dust, and pipeline garbage in the water collecting tray, thereby providing a solid guarantee for ensuring the quality of the cooling water. By stably ensuring the quality of the cooling water, the attachment and accumulation of impurities on the heat exchange surface are reduced, enabling the heat exchange process to proceed more smoothly. This not only significantly improves the heat exchange effect of the cooling tower, but also ensures that it can fully play its cooling function under various working conditions, effectively reducing the water temperature, providing stable and reliable cooling support for industrial production, air conditioning systems and other equipment and systems relying on the cooling tower, and ultimately realizing the efficient and stable operation of the system.

[0038] Furthermore, before starting to install the cooling tower cleaning device, a comprehensive and in-depth site survey is required. Carefully measure and analyze the spatial layout of the cooling tower, the surrounding environmental conditions, and various factors that may affect the installation and operation of the device. Use self-tapping screws to firmly fix the guide rail on the support frame 10, and then fix the support frame 10 on the ground. At the same time, use a level for calibration to ensure that the error of the guide rail in the horizontal direction is controlled within an extremely small range, laying a foundation for the stable operation of the subsequent device. After the guide rail is successfully fixed, strictly in accordance with the technical specifications and installation drawings of the equipment, accurately erect the power component and the power steering component. Use professional measuring tools such as laser rangefinders and angle gauges to repeatedly calibrate the position and angle of each device, ensuring the position accuracy and connection tightness between the power component and the guide rail, and ensuring that the power steering component can smoothly and efficiently transmit power. At the same time, conduct strict anti-loosening treatment and sealing protection on each connection part to prevent the device from loosening or being damaged due to long-term vibration or a humid environment.

[0039] Furthermore, the adaptive installation of the brush: According to the specific shape, size of the cooling tower water collecting tray, as well as the adhesion characteristics and accumulation degree of dirt, carefully select the matching brush type and specifications. When installing the brush, use the professional card slots carefully designed outside the power steering component to accurately and firmly install the brush. During the installation process, carefully adjust the angle and spacing of the brush so that it can fit the inner wall of the water collecting tray to the greatest extent, covering all areas that need to be cleaned. At the same time, ensure that an appropriate contact pressure is maintained between the brush and the water collecting tray, which can effectively remove dirt without causing excessive wear or damage to the water collecting tray. After the brush is installed, conduct a comprehensive manual inspection and trial operation test to check the rotation flexibility, stability of the brush, and whether there are problems such as skewing. If there are any abnormalities, adjust and correct them in a timely manner.

[0040] Furthermore, the intelligent addition and function improvement of the time control device: The control box 9 uses a high-performance microcontroller as the core, equipped with a high-precision real-time clock module, which can achieve accurate time setting and control.

[0041] Automatic control function: Operators can flexibly set personalized automatic cleaning parameters according to the actual operating conditions of each cooling tower, such as usage frequency, water quality change rules, dirt generation speed, etc. They can accurately set the start time, cleaning duration, and cleaning cycle of each cleaning operation. The time control device will strictly trigger the cleaning program automatically according to the preset schedule, realizing unattended automatic cleaning operations. For example, for cooling towers with poor water quality and high operating loads, a shorter cleaning cycle and a longer cleaning duration can be set; while for cooling towers with relatively good water quality and a cleaner operating environment, the cleaning cycle can be extended accordingly to reasonably allocate cleaning resources and ensure that each cooling tower can be cleaned in a timely and effective manner.

[0042] Manual control function: Considering special situations or temporary requirements, the time control device is equipped with an intuitive and easy-to-use manual operation interface. Operators can manually start, pause, or stop the cleaning operation at any time by operating the physical buttons or touch display screen on the operation panel, and can flexibly adjust parameters such as cleaning time and frequency. This function plays an important role in equipment debugging, fault troubleshooting, and dealing with emergencies, providing great flexibility and operability for the cleaning work.

[0043] When installing the control box 9, ensure that its electrical connection to the entire cleaning system is safe and reliable, carry out strict insulation treatment and grounding protection, and at the same time take effective electromagnetic shielding measures to prevent external electromagnetic interference from affecting the normal operation of the device. After installation, conduct a comprehensive and detailed debugging and testing of the automatic control and manual control functions of the control box 9 to verify the accuracy and stability of each function, and ensure that it can operate stably and reliably.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for cleaning a cooling tower water collecting pan, characterized in that: The specific methods include the following: S1. Preparation before cleaning: Before starting to clean a cooling tower, first accurately find and close the automatic water replenishment valve, drain valve and return valve of the cooling tower through the control system. During the closing process, closely observe the closing state of the valve to ensure that the valve is completely closed to prevent water from flowing in or out during the cleaning process, affecting the cleaning effect and causing water waste; S2, brush cleaning operation: after the valve is fully closed, the time control device is started, and the first brush (3) and the second brush (4) are driven to perform comprehensive and detailed cleaning of the cooling tower water collecting pan according to the preset cleaning mode and parameters. During the cleaning process, the operator should pay close attention to the operation of the first brush (3) and the second brush (4), such as the rotation speed and swing amplitude of the first brush (3) and the second brush (4), and check the cleaning progress and effect of the water collecting pan in real time through the monitoring equipment installed on site; S3, sewage discharge and water replenishment operation: after cleaning, open the sewage valve of the cooling tower to discharge the sewage and dirt generated during the cleaning process. During the sewage discharge process, according to the flow rate and turbidity of the sewage, reasonably control the sewage discharge time to ensure that the sewage and impurities in the water collection tray are completely discharged. After the sewage discharge is completed, close the sewage valve, open the automatic water replenishment device, and start to replenish water into the cooling tower; S4. Restore normal operation: After the water replenishment is completed, open the outlet valve of the cooling tower to restore the cooling tower to normal operation. During this process, continuously monitor the various operating parameters of the cooling tower, such as water temperature, water pressure, water flow rate, etc., to ensure that the equipment operates stably and all indicators meet the normal operation requirements. According to the same process, perform staggered cleaning operations on other cooling towers in turn to ensure the stable operation of the overall system of multiple cooling towers during the cleaning process.

2. A cooling tower water collecting pan cleaning method according to claim 1, characterized in that: If an abnormal situation is found during the cleaning operation of the first brush (3) and the second brush (4), such as a jam of the first brush (3) and the second brush (4), an overload of the power device, etc., the cleaning operation should be suspended immediately, and the problem should be promptly checked and solved before continuing the cleaning.

3. A cooling tower water collecting pan cleaning method according to claim 1, characterized in that: Monitor water level changes in real time, and automatically stop water replenishment when the water level reaches the preset standard water level.

4. An automatic cleaning device for a cooling tower water collecting pan, characterized in that: The invention comprises a first cleaning mechanism (100), a second cleaning mechanism (200), a control box (9) and a cooling tower water collecting tray cleaning method as claimed in any one of claims 1 to 3, wherein the first cleaning mechanism (100) comprises a first guide rail (1), a first brush (3), a first power assembly (5) and a first power steering assembly (7), and the second cleaning mechanism (200) comprises a second guide rail (2), a second brush (4), a second power assembly (6) and a second power steering assembly (8).

5. The automatic cleaning device for a cooling tower water collecting pan according to claim 4, characterized in that: The first power assembly (5) is arranged on a first guide rail (1), and the second power assembly (6) is arranged on a second guide rail (2).

6. The automatic cleaning device for a cooling tower water collecting pan according to claim 5, characterized in that: The first power steering assembly (7) is connected to the first power assembly (5), and the output shaft of the first power steering assembly (7) is respectively connected to two first brushes (3).

7. The automatic cleaning device for a cooling tower water collecting pan according to claim 6, characterized in that: The second power steering assembly (8) is arranged below the second power assembly (6); the output shaft of the second power steering assembly (8) is respectively connected to two second brushes (4); the second brush (4) located at the top is rotationally connected to the second power assembly (6).

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