A cooling tower cleaning device

Abstract

This application discloses a cooling tower cleaning device, which includes a connecting pipeline with interconnected components: a first port extending into and communicating with the interior of the cooling tower; and a second port, the height of which is lower than that of the first port, connected to a water source interface. The second port is configured to be sequentially set to a first state and a second state during normal operation of the cooling tower. In the first state, the second port is connected to the water source interface to replenish water to the cooling tower and expel gas from the connecting pipeline. In the second state, the second port is disconnected from the water source interface and connected to the external environment to discharge liquid carrying impurities from the cooling tower based on a negative pressure siphon effect. The aim is to solve the technical problem of how to effectively clean a cooling tower while ensuring normal equipment operation.

Description

Technical Field

[0001] This application relates to the field of cooling tower cleaning technology, and in particular to a cooling tower cleaning device. Background Technology

[0002] Cooling towers are common cooling equipment in industrial production, widely used in industries such as chemical engineering, power generation, and metallurgy. During operation, cooling towers cool equipment through water circulation. However, because the cooling water is exposed to the air for extended periods, it easily carries dust, sand, and other impurities, causing sediment to gradually accumulate at the bottom of the cooling tower. This is especially true in harsh environments or dusty conditions, where large amounts of sand and impurities often accumulate at the bottom of the cooling tower.

[0003] If these sand particles and impurities are not cleaned in time, they may enter subsequent testing or production equipment with the water flow, causing pipe blockage, reduced heat exchange efficiency, and even affecting the normal operation of equipment and the stability of production processes. Therefore, in order to maintain the high efficiency of the cooling system and the reliability of equipment operation, the cooling tower must be cleaned regularly.

[0004] Traditional cleaning methods typically involve shutting down equipment for maintenance and upkeep. However, due to the operational demands of industrial equipment, maintenance and upkeep are generally only performed once or twice a year, while cooling towers are recommended to be cleaned every two weeks due to water quality issues and environmental conditions. This means that simply relying on equipment shutdown for cooling tower cleaning cannot meet actual needs. If cooling towers are not cleaned for extended periods, deposits can accumulate, affecting equipment operating efficiency and even causing reduced cooling effectiveness and pipe blockages.

[0005] Therefore, how to clean the cooling tower in a timely and effective manner while the equipment is running normally has become an urgent technical problem to be solved. Utility Model Content

[0006] One object of this application is to provide a cooling tower cleaning device, which aims to solve the technical problem of how to effectively clean a cooling tower while ensuring the normal operation of the equipment.

[0007] To achieve the above objectives, this application provides a solution: a cooling tower cleaning device, which includes a connecting pipe, the connecting pipe comprising: a first port extending into and communicating with the interior of the cooling tower; and a second port, the height of the second port being lower than the height of the first port, the second port being connected to a water source interface, for being sequentially set to a first state and a second state during normal operation of the cooling tower; in the first state, the second port is connected to the water source interface to replenish water to the cooling tower and expel gas from the connecting pipe; in the second state, the second port is disconnected from the water source interface and connected to the external environment to discharge liquid carrying impurities from the cooling tower based on the negative pressure siphon effect.

[0008] Optionally, the second port is detachably connected to the water source interface. The second port is set to the first state by being connected to the water source interface, and the second port is set to the second state by being detached from the water source interface.

[0009] Optionally, the second port includes: a first branch port for connecting to a water source interface and a second branch port for connecting to the external environment, which are connected to the internal connection of the connecting pipeline; the cooling tower cleaning device also includes a control valve disposed in the second port for selecting either the first branch port or the second branch port; when the control valve selects the first branch port, the second port is set to a first state; when the control valve selects the second branch port, the second port is set to a second state.

[0010] Optionally, the connecting pipeline includes interconnected rigid pipe sections and flexible pipe sections, with the port of the rigid pipe section furthest from the flexible pipe section serving as the first port; and the port of the flexible pipe section furthest from the rigid pipe section serving as the second port.

[0011] Optionally, the rigid pipe section is used to be inserted at an angle into the liquid inside the cooling tower, and the angle between the insertion direction of the rigid pipe section and the direction of the liquid surface inside the cooling tower is between 30° and 60°.

[0012] Optionally, the connecting pipe is also connected to the air circuit; the cooling tower cleaning device also includes a flow sensor and an air pump. The flow sensor is installed in the connecting pipe, and the air pump is connected to the air circuit. The air pump is used to pressurize the connecting pipe with air through the air circuit to remove blockages in the connecting pipe when the flow sensor detects a decrease in flow.

[0013] Optionally, the cooling tower cleaning device includes a liquid level warning device, which is set at the lowest liquid level position when the cooling tower is working normally, and provides a warning when the liquid level in the cooling tower is lower than the lowest liquid level position.

[0014] Optionally, the first port includes multiple guide ports communicating with the interior of the connecting pipe, and the multiple guide ports are evenly arranged around the axis of the connecting pipe.

[0015] Optionally, the cross-section of the guide opening is prismatic, circular, or triangular.

[0016] Optionally, the cooling tower cleaning device also includes a wastewater collection structure, which collects the liquid carrying impurities discharged from the second port when the second port is in the second state.

[0017] The beneficial effects of this application are as follows:

[0018] Compared to existing technologies that rely on equipment shutdown for maintenance and cleaning, this application enables the switching between water replenishment / venting and siphon drainage functions in the cooling tower cleaning device, allowing cleaning operations to be performed efficiently while the cooling tower is running normally. When the cooling tower is operating normally, the second port is set to the first state, enabling water replenishment / venting to refresh the bottom water flow and flush away impurities. When centralized sewage discharge is required, the second port is set to the second state, enabling siphon drainage to automatically extract sediment under negative pressure. This achieves efficient removal of bottom sediment while avoiding shutdowns for cleaning. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a cooling tower cleaning device provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of another cooling tower cleaning device provided in an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of another cooling tower cleaning device provided in the embodiments of this application;

[0023] Figure 4 This is a schematic diagram of another cooling tower cleaning device provided in an embodiment of this application.

[0024] Explanation of icon numbers:

[0025] 10. Connecting pipe; 11. First port; 111. Guide port; 12. Second port; 121. First branch port; 122. Second branch port; 13. Rigid pipe section; 14. Flexible pipe section; 20. Water source interface; 30. Control valve; 40. Air path; 51. Flow sensor; 52. Air pump; 60. Liquid level warning device; 70. Sewage collection structure; 80. Cooling tower. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0029] Please see Figure 1 , Figure 1 This is a schematic diagram of a cooling tower cleaning device provided in an embodiment of this application. Figure 1 The second port 12 and the water source interface 20 are detachably connected.

[0030] This application provides a cooling tower cleaning device, which aims to ensure that the cooling tower 80 is cleaned efficiently under normal operating conditions, avoiding production interruption caused by shutdown maintenance in traditional cleaning methods.

[0031] This cooling tower cleaning device includes a connecting pipe 10. The connecting pipe 10 is the core component of the cleaning operation, and includes a first port 11 and a second port 12 that are interconnected.

[0032] The first port 11 extends into and connects to the interior of the cooling tower 80, and is usually located at the bottom of the cooling tower 80 or in the liquid accumulation area thereon, for directly extracting the liquid carrying impurities from the bottom of the cooling tower 80.

[0033] The second port 12 is located outside the cooling tower 80, at a lower height than the first port 11, and is connected to the first port 11 via a connecting pipe 10. The second port 12 is connected to the water source interface 20 for fresh water, and is used to be set to the first state and the second state sequentially during normal operation of the cooling tower 80.

[0034] Here, "live water" refers to water that can be introduced into the second port 12 using the pressure of a water pump or the water source itself, and has a tendency to enter the connecting pipe 10 when the cooling tower 80 is operating normally. The presence of live water allows air in the connecting pipe 10 to be effectively expelled at the start of cleaning, ensuring good water flow continuity in the pipe during the cleaning process.

[0035] In the first state, the second port 12 is connected to the water source interface 20 to replenish water to the cooling tower 80 and remove gas from the connecting pipe 10.

[0036] In the second state, the second port 12 is disconnected from the water source interface 20 and connected to the external environment, so as to discharge the liquid carrying impurities in the cooling tower 80 based on the negative pressure siphon effect.

[0037] Corresponding to the first and second states of the second port 12, this device has two working modes: the first working mode is the water replenishment and exhaust mode, in which the second port 12 is in the first state; the second working mode is the siphon drainage mode, in which the second port 12 is in the second state.

[0038] In the first operating mode, the second port 12 is in its first state, meaning it is connected to the water source interface 20. The pressure from the water pump or the water source itself forces fresh water through the second port 12 into the connecting pipe 10, replenishing the water volume in the cooling tower 80 and simultaneously expelling air from the connecting pipe 10. This facilitates a negative pressure siphon effect when switching to the siphon drainage mode. In this state, the inflow of fresh water helps loosen and flush away impurities at the bottom of the cooling tower 80. The water replenishment operation effectively ensures a stable liquid level in the cooling tower 80 during the cleaning process, preventing a drop in liquid level from affecting the cooling effect.

[0039] In the second operating mode, the second port 12 is in its second state, meaning it is disconnected from the water source interface 20 and connected to the external environment. At this time, a level difference is created because the liquid level inside the cooling tower 80 is higher than that at the second port 12. Furthermore, since the air in the connecting pipe 10 was already vented during the first operating mode, a negative pressure siphon effect is achieved, automatically drawing out and discharging the water and impurities trapped at the bottom of the cooling tower 80. Due to the continuous effect of the siphon, sediment removal can be carried out for an extended period without additional power, preventing bottom siltation caused by long-term operation of the cooling tower 80.

[0040] In this embodiment, the cooling tower cleaning device switches between two modes: water replenishment and venting, and siphon drainage. This allows the bottom of the cooling tower 80 to remain clean during normal operation, preventing sand and sediment from entering subsequent testing equipment or production systems, thus reducing clogging and reduced cooling efficiency. Compared to traditional cleaning methods that rely on shutdown, this device offers significant advantages such as high cleaning efficiency, ease of operation, and no need for downtime maintenance. It can be widely used in various industrial cooling systems, ensuring long-term stable operation of the equipment.

[0041] Please see Figure 2 , Figure 2 This is a schematic diagram of another cooling tower cleaning device provided in an embodiment of this application. In some embodiments, the first state and the second state are switched by changing the connection state between the second port 12 and the water source interface 20. The second port 12 and the water source interface 20 are detachably connected. Specifically, the second port 12 is connected to the water source interface 20 through a quick connector, threaded connection, or snap-fit ​​structure. When the second port 12 is connected to the water source interface 20, the cleaning device is set to the first state, that is, the device is in the water replenishment and air venting mode. In this mode, the water source interface 20 introduces fresh water into the connecting pipe 10 through the pressure of a water pump or the water source itself, ensuring that the air inside the pipe is effectively discharged, while maintaining a stable liquid level in the cooling tower 80.

[0042] When switching to the second state is required, the operator can easily detach the second port 12 from the water source interface 20, allowing it to connect directly to the external environment. In this case, since the liquid level inside the cooling tower 80 is higher than that at the second port 12, and the air in the connecting pipe 10 has already been purged during the first operating mode, the water accumulated at the bottom of the cooling tower 80 and its entrained impurities can be automatically drawn to the outside through siphon action.

[0043] The detachable connection structure not only makes state switching more flexible and operation simpler, but also effectively reduces the risk of seal failure or blockage that may occur with fixed connections. During cooling tower 80 cleaning, simply plugging and unplugging the second port 12 and water source interface 20 easily switches between water replenishment and venting modes and siphon drainage modes, effectively improving the efficiency and convenience of the cleaning operation. At the same time, since disassembly does not involve complex tools or assembly / disassembly processes, it greatly reduces maintenance difficulty and labor intensity, enhancing the system's operability.

[0044] In other embodiments, the cooling tower cleaning device can switch between a first state (water replenishment and exhaust) and a second state (siphon drainage) by changing the connection state of the second port 12. For this purpose, the second port 12 is designed with a multi-channel diversion structure, including a first diversion port 121 and a second diversion port 122 that are connected to the inside of the connecting pipe 10.

[0045] The first diversion port 121 is connected to the water source interface 20 to supply water to the cleaning device in the water replenishment and exhaust mode; the second diversion port 122 is used to connect to the external environment to ensure smooth liquid discharge in the siphon drainage mode. In order to quickly switch between the two diversion ports, the cooling tower cleaning device is also equipped with a control valve 30 in the second port 12, which is used to select either the first diversion port 121 or the second diversion port 122.

[0046] When cooling tower 80 needs water replenishment and air venting, control valve 30 selects the first branch port 121, allowing fresh water to enter the connecting pipe 10 through water source interface 20, forming a stable water flow. This discharges residual air from the connecting pipe 10, ensuring the continuity of water flow at the bottom of cooling tower 80. In this state, the liquid level inside cooling tower 80 is replenished, and the gas in the pipes is removed, achieving the cleaning purpose of the first state.

[0047] When it is necessary to discharge the sediment at the bottom of cooling tower 80, control valve 30 switches to select the second branch port 122, directly connecting the second port 12 to the external environment. Since the air in the connecting pipe 10 was already vented in the first working mode, a negative pressure siphon channel can be formed. In this state, due to the high liquid level inside cooling tower 80 and the large liquid column difference in connecting pipe 10, the negative pressure siphon effect begins to work, and the liquid carrying impurities at the bottom of cooling tower 80 is automatically drawn out and discharged to the outside through connecting pipe 10, achieving the drainage purpose of the second state.

[0048] In this embodiment, by setting a control valve 30 with a gate function at the second port 12, the working state can be flexibly switched. It can realize automatic water replenishment and air venting when the cooling tower 80 is running normally, and can quickly start the siphon drainage operation when there is a lot of water accumulation and sedimentation, ensuring that the bottom of the cooling tower 80 is always kept clean. This improves the efficiency and reliability of the cleaning operation and helps to realize the automation and continuity of the cooling tower 80 cleaning process.

[0049] In some optimized embodiments, to enhance the flexibility and adaptability of the cooling tower cleaning device, the connecting pipe 10 adopts a segmented combination structure, including interconnected rigid pipe sections 13 and flexible pipe sections 14. This aims to balance the structural stability and ease of operation of the connecting pipe 10, ensuring the strength of the pipe under high flow rates and high pressures, while also flexibly adapting to complex installation environments during layout and adjustment.

[0050] The rigid pipe section 13 is mainly used to support and fix the pipeline structure. It is made of corrosion-resistant, high-strength materials, such as stainless steel or engineering plastic pipes, and has high rigidity and pressure resistance. The rigid pipe section 13 is generally fixedly installed on the cooling tower 80 or its infrastructure to maintain a stable connection and drainage channel. The end of the rigid pipe section 13 away from the flexible pipe section 14 serves as the first port 11, which is used to penetrate into the liquid area at the bottom of the cooling tower 80 and communicate with the interior of the cooling tower 80 to ensure that the bottom water carrying impurities can be effectively extracted during the siphon drainage process.

[0051] The flexible hose section 14 connects to the end of the rigid pipe section 13 and is made of flexible materials such as silicone tubing, rubber tubing, or multi-layer composite hoses. It has good flexibility and torsion resistance, making it suitable for installation and adjustment in complex spaces. The port of the flexible hose section 14 furthest from the rigid pipe section 13 serves as the second port 12, which can be connected to the water source interface 20 or the external environment depending on the specific operating conditions. In the first state, the flexible hose section 14 introduces fresh water through the water source interface 20 to achieve water replenishment and air venting; in the second state, the flexible hose section 14 uses negative pressure to discharge the liquid deposited at the bottom of the cooling tower 80.

[0052] In this embodiment, the rigid pipe section 13 and the flexible pipe section 14 are combined. The rigid pipe section 13 provides strength and support, enabling the pipeline to stably withstand liquid flow pressure and mechanical stress during long-term use, preventing structural loosening and cracking due to long-term vibration or impact. The flexible pipe section 14 has high flexibility, making the installation and disassembly of the cleaning device more convenient, especially in the narrow space of the cooling tower 80 or complex pipe layout, allowing for flexible adjustment of angle and direction, avoiding space waste or liquid flow obstruction caused by unreasonable pipe layout.

[0053] Furthermore, in some embodiments, the rigid pipe section 13 is inserted into the liquid inside the cooling tower 80 at an angle, and the angle C between its insertion direction and the liquid surface inside the cooling tower 80 satisfies the relationship 30°≤C≤60°.

[0054] Compared to the traditional vertical insertion method, inclined insertion has significant advantages in terms of structure and performance. First, the inclined angle allows the rigid pipe section 13 to be inserted more smoothly into the bottom area of ​​the cooling tower 80, effectively avoiding clogging problems caused by excessive deposits during vertical insertion. Especially when a large amount of sediment (such as sand, sludge, etc.) accumulates at the bottom of the cooling tower 80, the port of the vertically inserted rigid pipe is easily blocked by the accumulation of bottom sediment, preventing liquid from entering the pipe normally and affecting the cleaning effect.

[0055] With the inclined insertion structure, the port of the rigid pipe section 13 forms a certain angle, effectively reducing the risk of sludge or sand directly covering the port. At the same time, the inclined angle allows the liquid to generate a certain rotation and flow effect when flowing into the rigid pipe section 13. This flow characteristic helps to disperse the sediment from around the pipe opening, reducing the probability of blockage.

[0056] In practice, the tilt angle is set between 30° and 60°, mainly based on the following considerations: When the angle is less than 30°, the pipe insertion angle is relatively gentle, which can reduce blockage to some extent, but because the inlet is close to the bottom plane of the cooling tower, there is still a risk of silt deposition; when the angle is greater than 60°, although the insertion is more vertical, the flow effect and unblocking effect are weakened. Therefore, an angle between 30° and 60° can achieve a good balance between anti-blockage and flow rate improvement.

[0057] Additionally, please refer to Figure 3 , Figure 3 This is a schematic diagram of another cooling tower cleaning device provided in this application embodiment. To further improve the reliability and anti-clogging performance of the cooling tower cleaning device in practical applications, this application also adds an air passage 40 structure in some embodiments to address the pipe blockage problem that may occur during the cleaning process. By introducing flow monitoring and an air pump 52 impact unblocking mechanism, blockages can be removed in a timely manner when the cooling tower 80 is operating normally, avoiding a decrease in cleaning efficiency or system shutdown due to pipe blockage.

[0058] Specifically, the connecting pipe 10 is connected not only to the liquid flow channel but also to the air passage 40. The cooling tower cleaning device also includes a flow sensor 51 and an air pump 52 to form a combined monitoring and unblocking system. The flow sensor 51 is installed in the connecting pipe 10 to monitor changes in the liquid flow rate inside the pipe in real time. When the liquid flow rate drops significantly due to blockage by deposits or impurities, the flow sensor 51 can quickly detect the abnormal flow and send a signal to the control unit.

[0059] Air pump 52 is connected to connecting pipe 10 via air passage 40. Air pump 52 is generally a high-pressure air pump or a gas compressor, capable of generating high-pressure airflow. When flow sensor 51 detects a decrease in flow rate, air pump 52 starts under the command of control unit, rapidly injecting high-pressure gas into connecting pipe 10 through air passage 40. The impact of the airflow can directly apply pressure to the blockage location, quickly pushing impurities or deposits accumulated in the pipe away from the pipe opening or flow channel, restoring normal pipe patency.

[0060] To ensure the safety and effectiveness of the unblocking operation, when the air pump 52 is unblocking the connecting pipe 10, the entire cooling tower cleaning device is removed from the cooling tower 80, that is, the first port 11 is detached from the bottom of the cooling tower 80, so that the blockage can be smoothly discharged to the outside, effectively preventing the backflow of dirt caused by the high-pressure airflow or secondary pollution inside the cooling tower 80, and ensuring that the cleaning process is more environmentally friendly and safe.

[0061] The operation mode of air pump 52 can be flexibly adjusted according to the blockage situation. For example, it can use intermittent pulse air inflation mode to use high-frequency low-volume airflow for rapid impact to prevent impurities from flowing back and causing secondary blockage. In the case of severe blockage, it can also be switched to continuous high-pressure air inflation mode to ensure that the blockage is completely pushed out of the pipeline.

[0062] In this embodiment, the combination of automated monitoring and air-purging for unblocking enables rapid response and efficient cleaning of the cooling tower 80 during normal operation. No manual intervention is required, effectively reducing maintenance workload and the risk of cleaning interruptions. Especially in industrial production, the cleaning device can operate continuously for extended periods, and even if blockages occur, it can quickly restore normal flow, ensuring the efficiency and reliability of the cooling system.

[0063] Please see Figure 4 , Figure 4 This is a schematic diagram of another cooling tower cleaning device provided in this application embodiment. In some optimized embodiments, a liquid level warning device 60 is added. The liquid level warning device 60 is set at the lowest liquid level when the cooling tower 80 is working normally. When the liquid level in the cooling tower 80 is lower than the lowest liquid level, an early warning is issued to ensure that the cooling tower 80 always maintains sufficient cooling water volume during continuous operation, avoiding problems such as reduced cooling effect or abnormal equipment operation due to low liquid level.

[0064] The liquid level warning device 60 typically comprises three parts: a liquid level sensor, a signal processing module, and an alarm unit. The liquid level sensor is installed inside the cooling tower 80 near the bottom, and its height is set to the minimum liquid level during normal operation of the cooling tower 80. This minimum liquid level is determined according to the design and operating requirements of the cooling tower 80, and is usually located a certain height above the bottom of the cooling tower 80, ensuring that the cooling tower 80 still maintains basic cooling capacity and water circulation effect even at the lowest liquid level.

[0065] The liquid level sensor monitors the liquid level changes inside the cooling tower 80 in real time and transmits the monitoring signals to the signal processing module for analysis. When the liquid level in the cooling tower 80 drops below the minimum level, the signal processing module immediately triggers the alarm unit. The alarm unit can be an audible and visual alarm, a display screen, or a wireless alarm device, transmitting the alarm information to the operator or monitoring center via sound, light, or remote information transmission. Upon receiving the alarm, the operator can quickly take countermeasures, such as adding water to rapidly restore the liquid level in the cooling tower 80, preventing any impact on the equipment's cooling effect.

[0066] In this embodiment, by setting up a liquid level warning device 60, the device can issue an alarm in a timely manner when the liquid level changes abnormally, ensuring that operators can react quickly and preventing the cooling tower 80 from running out of water due to excessively rapid liquid discharge during the cleaning operation. This ensures that the cooling tower cleaning device can perform efficient cleaning operations without affecting the normal operation of the cooling tower 80, thereby improving the stability and safety of the cooling system operation.

[0067] At the bottom of the cooling tower 80, due to the poor fluidity of the liquid and the tendency of sediment to accumulate in local areas, a single liquid inlet often suffers from uneven intake, insufficient flow rate, and incomplete removal of sediment during discharge and cleaning.

[0068] In some embodiments, the structure of the first port 11 has been optimized. Specifically, the first port 11 includes a plurality of guide ports 111 communicating with the interior of the connecting pipe 10, and these guide ports 111 are uniformly arranged around the axis of the connecting pipe 10 in a ring array. By providing a plurality of guide ports 111 on the first port 11, this embodiment forms a ring-shaped multi-point suction structure, allowing water and impurities accumulated at the bottom of the cooling tower 80 to enter the connecting pipe 10 simultaneously from multiple directions, thereby improving the collection efficiency of liquid and impurities.

[0069] In some embodiments, to improve the adaptability and suction effect of the cooling tower cleaning device under different cleaning environments, this application has made improvements to the structure of the guide port 111 of the first port 11. Specifically, the cross-sectional shape of the guide port 111 can be designed as prismatic, circular, or triangular to adapt to different fluid characteristics and sediment conditions, thereby enhancing the suction effect of liquid and impurities.

[0070] In practical applications, the characteristics of the bottom deposits of different cooling towers 80 may vary due to differences in structural form and operating conditions, such as particle size, deposition morphology, and density. Therefore, appropriately selecting the cross-sectional shape of the guide port 111 to meet different cleaning needs can effectively improve cleaning efficiency and the stability of fluid intake.

[0071] First, when the cross-section of the guide port 111 is prismatic, it has a large opening area and good flow guiding effect. This shape is particularly suitable for situations where the deposits at the bottom of the cooling tower 80 are relatively loose and the particles are large. During the cleaning process, the prismatic cross-section can form a strong suction flow field, which is conducive to the rapid entry of larger particles of impurities into the connecting pipe 10. In addition, the corners of the prismatic opening can generate strong local vortices, which help to pick up the dirt deposited at the bottom of the tower, further improving the deposit removal effect.

[0072] Secondly, when the cross-section of the guide port 111 is circular, it effectively reduces flow resistance, making it suitable for cooling tower environments with high liquid flow rates or low impurity concentrations. The circular opening creates a stable and continuous vortex when drawing in liquid, avoiding uneven velocity distribution caused by corner effects. This shape exhibits lower pressure loss in the piping system and maintains stable suction performance over long periods of operation, making it particularly suitable for conditions where the cooling water is relatively clear and the sediment consists mainly of fine particles.

[0073] Furthermore, when the cross-section of the guide port 111 is triangular, its sharp corner design creates a strong local vortex during suction, which helps to disrupt the structure of the bottom sediment layer and quickly draws in more compacted contaminants. The triangular guide port 111 is particularly suitable for scenarios where there are relatively dense or hardened deposits at the bottom of the cooling tower 80. Due to the increased flow velocity at the sharp corners, it can effectively peel off and suck in more stubborn sludge or sediment, thereby improving the cleaning effect.

[0074] In this embodiment, by flexibly employing prismatic, circular, and triangular guide ports 111, the liquid suction effect and impurity removal capability can be optimized according to the different characteristics of the deposits at the bottom of the cooling tower 80, further improving the working efficiency and operational stability of the cooling tower cleaning device. The flexible and diverse guide port 111 design helps to improve the removal efficiency of deposits at the bottom of the cooling tower 80, making the cleaning process more efficient and comprehensive.

[0075] In some optimized embodiments, a wastewater collection structure 70 is added to the cleaning device. The wastewater collection structure 70 is used to effectively collect the liquid carrying impurities discharged from the second port 12 when the cooling tower cleaning device is in the second state, so as to avoid direct discharge of wastewater causing environmental pollution or water accumulation around the cooling tower 80.

[0076] During the cleaning process of cooling tower 80, when the second port 12 is in the second state, that is, when the cooling tower cleaning device uses the siphon effect to perform sewage discharge, the liquid accumulated at the bottom of cooling tower 80, along with its entrained silt, suspended solids, and impurities, will be drawn out to the second port 12 through the connecting pipe 10. Since the discharged liquid contains a large amount of sediment, gravel, and sludge, direct discharge could easily pollute the surrounding environment and may even clog the drainage system. Therefore, it is necessary to collect and centrally treat the discharged wastewater.

[0077] The wastewater collection structure 70 is typically located below or near the second port 12 to ensure smooth reception of all discharged impurities during the drainage process. The wastewater collection structure 70 can be a wastewater tank or trough with a certain volume, featuring high edges and corrosion resistance to prevent overflow or corrosion of the container. To further improve impurity collection, a primary filter or sedimentation baffle can be installed inside the wastewater collection structure 70 to pre-intercept larger solid particles and sediments, simplifying subsequent wastewater treatment.

[0078] Furthermore, the use of terms such as "first" and "second" in this application 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. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0079] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the content of this application's specification and drawings under the concept of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A cooling tower cleaning apparatus, characterized by, Includes connecting pipes, the connecting pipes comprising interconnected components: The first port extends into and connects to the interior of the cooling tower; The second port is lower than the height of the first port and is connected to the water source interface of the live water. It is used to be set to the first state and the second state successively when the cooling tower is working normally. The first state is that the second port is connected to the water source interface to replenish water to the cooling tower and remove gas from the connecting pipe; The second state is that the second port is disconnected from the water source interface and connected to the external environment, so as to discharge the liquid carrying impurities in the cooling tower based on the negative pressure siphon effect.

2. The cooling tower washing apparatus of claim 1, wherein The second port is detachably connected to the water source interface. The second port is set to the first state by being connected to the water source interface, and the second port is set to the second state by being detached from the water source interface.

3. The cooling tower washing apparatus of claim 1, wherein, The second port includes a portion that communicates with the interior of the connecting conduit: The first branch port is used to connect to the water source interface; The second branch port is used to connect with the external environment; The cooling tower cleaning device further includes a control valve disposed in the second port for selecting either the first branch port or the second branch port; When the control valve selects the first diversion port, the second port is set to the first state; when the control valve selects the second diversion port, the second port is set to the second state.

4. The cooling tower cleaning device according to any one of claims 1 to 3, characterized in that, The connecting pipeline includes a rigid pipe section and a flexible pipe section connected to each other, with the port of the rigid pipe section away from the flexible pipe section serving as the first port; and the port of the flexible pipe section away from the rigid pipe section serving as the second port.

5. The cooling tower cleaning device according to claim 4, characterized in that, The rigid pipe section is used to be inserted at an angle into the liquid inside the cooling tower, and the angle between the insertion direction of the rigid pipe section and the direction of the liquid surface inside the cooling tower is between 30° and 60°.

6. The cooling tower cleaning device according to any one of claims 1 to 3, wherein the connecting pipeline is further connected to an air circuit; The cooling tower cleaning device also includes a flow sensor and an air pump. The flow sensor is installed in the connecting pipe, and the air pump is connected to the air passage. When the flow sensor detects a decrease in flow, the air pump is used to pressurize the connecting pipe with air through the air passage to expel blockages in the connecting pipe.

7. The cooling tower cleaning device according to any one of claims 1 to 3, characterized in that, The cooling tower cleaning device includes a liquid level warning device, which is set at the lowest liquid level position when the cooling tower is working normally, and issues a warning when the liquid level in the cooling tower is lower than the lowest liquid level position.

8. The cooling tower cleaning device according to any one of claims 1 to 3, characterized in that, The first port includes multiple guide ports that communicate with the interior of the connecting pipe, and the multiple guide ports are evenly arranged around the axis of the connecting pipe.

9. The cooling tower cleaning device according to claim 8, characterized in that, The cross-section of the guide port is prismatic, circular, or triangular.

10. The cooling tower cleaning device according to any one of claims 1 to 3, characterized in that, The cooling tower cleaning device also includes a sewage collection structure, which collects liquid carrying impurities discharged from the second port when the second port is in the second state.

Images