Self-maintenance equipment for energy-saving and efficient water collector of high-position water collection cooling tower

Abstract

The invention relates to the technical field of water collector maintenance, in particular to self-maintenance equipment for an energy-saving efficient water collector of a high-level water collection cooling tower, which comprises a main tower body and a water collector module, and an internal assembly frame for mounting the water collector module is fixedly assembled on the inner side surface of the main tower body. According to the self-maintenance equipment for the energy-saving and efficient water collector of the high-position water collection cooling tower, an upper electric control type top adjusting ring and a lower electric control type top adjusting ring are mounted at the upper end and the lower end of the internal assembly frame correspondingly, and operation circulation is carried out in a top rotating spray washing and bottom centrifugal liquid pumping mode; the resource recycling rate is greatly improved, and the cost is reduced; the electric control type centrifugal blades in the lower electric control type top adjusting ring are adopted, left cleaning liquid can be centrifugally refluxed and discharged, internal circulation flow guide can be achieved after cleaning is completed, and therefore the water collector can be rapidly air-dried, the maintenance effect is greatly improved, and cleaning liquid residues are avoided.

Description

Technical Field

[0001] This invention relates to the field of water collector maintenance technology, and in particular to a self-maintenance device for an energy-saving and efficient water collector in a high-level water collection cooling tower. Background Technology

[0002] The high-level cooling tower water collector is a core component of the cooling tower's air-water separation system. Its core function is to intercept mist droplets and moisture carried by the rising airflow within the tower, achieving water resource recovery, energy reduction, and environmental compliance. Its main core technological functions include the following: Highly efficient gas-water separation reduces water resource consumption, lowers operating costs, protects equipment and the environment, suppresses "white fog" emissions, meets environmental protection standards, adapts to high wind speeds, and ensures separation stability.

[0003] After prolonged use, impurities and microorganisms in the circulating water of the water collector in a high-level cooling tower will form hard scale on its surface. This scale narrows the flow channels, increases resistance, reduces droplet capture capacity, and causes uneven airflow distribution, resulting in localized "through-flow" and significantly reducing water collection efficiency. Furthermore, the water mist may contain chemical residues that corrode the surface of the water collector, affecting its surface materials and coatings and shortening its lifespan. Therefore, regular maintenance of the water collector is necessary.

[0004] Currently, the following issues exist regarding the maintenance and upkeep of water collectors: 1. Working at heights is high-risk and maintenance conditions are harsh. High-level cooling tower water collectors are usually located 20-50 meters above the ground. Maintenance requires climbing steep ladders, which is labor-intensive and poses a risk of falling. The environment inside the tower is hot and humid (40-50℃) and noisy (above 90dB), making the working environment extremely harsh. The time for a single operation is limited. In cold winter regions, the equipment surface freezes, further increasing the difficulty of maintenance and safety risks. 2. Complex structure and limited maintenance space The water collector has a labyrinthine, multi-layered structure with narrow internal passages, making it difficult for personnel to conduct a comprehensive inspection. 3. Difficult to clean, and the cleaning effect is hard to guarantee. Traditional high-pressure water gun cleaning is difficult to completely remove stubborn internal scale, while chemical cleaning requires shutdown, and the residual water after cleaning is difficult to dry, which can easily breed microorganisms and cause secondary pollution. 4. Conflict between maintenance costs and downtime losses The water collector module is heavy, and its disassembly and assembly at height require specialized equipment, increasing maintenance costs. A full overhaul requires a production stoppage of 6-15 days, causing huge economic losses to enterprises with continuous production. Summary of the Invention

[0005] The technical problem that this invention aims to solve is that current water collectors are difficult to maintain, have poor performance, and are costly.

[0006] The technical solution adopted by this invention to solve its technical problem is: a self-maintenance device for an energy-saving and efficient water collector in a high-level water collection cooling tower, comprising a main tower body and a water collector module. An internal assembly frame for installing the water collector module is fixedly mounted on the inner side of the main tower body. An upper electrically controlled top adjustment ring is mounted on the upper surface of the internal assembly frame, and a lower electrically controlled top adjustment ring is mounted on the lower inner side of the internal assembly frame. A telescopic pressurized nozzle is fixedly mounted on the inner side of the upper electrically controlled top adjustment ring. An electrically controlled centrifugal blade is movably mounted inside the lower electrically controlled top adjustment ring. An electrically controlled bottom closing cover plate is hinged to the lower surface of the internal assembly frame.

[0007] The upper surface and the lower inner side of the internal assembly frame are provided with annular assembly grooves. The upper electrically controlled top adjustment ring includes an upper adjustment ring movably assembled in the annular assembly groove inserted into the upper surface of the internal assembly frame, a lateral guide seat fixed on the arc-shaped surface of the upper adjustment ring, and an upper drive motor for controlling the upper adjustment ring.

[0008] The telescopic booster nozzle includes a fixed tube body fixedly installed on the outer opening of the side guide seat, an outer extension tube body elastically fitted on the outside of the fixed tube body, and an embedded booster nozzle fixed on the outer wall of the fixed tube body and the outer extension tube body.

[0009] The lower electrically controlled top adjustment ring includes a drive cover that is movably inserted into the annular assembly groove at the lower end of the inner side of the internal assembly frame, centrifugal blades fixed on the arc-shaped surface of the drive cover, a lower drive motor for controlling the drive cover, and an electrically controlled scraper installed at the guide port of the drive cover.

[0010] The internal assembly frame has an internal guide chamber for connecting the upper and lower annular assembly grooves.

[0011] The lower surface of the internal assembly frame has a downwardly protruding bottom mounting bracket, and the electrically controlled bottom closing cover includes a bottom flip-closing cover hinged to the bottom mounting bracket and a lateral adjustment strut for controlling the bottom flip-closing cover.

[0012] An annular metal filter screen is fixedly installed inside the internal flow guiding chamber.

[0013] The outer side of the main tower body is provided with an external slag discharge pipe and an external flow guide pipe that are connected to the internal flow guide chamber.

[0014] Both the external slag discharge pipe and the external guide pipe are equipped with external solenoid valves at their external ports.

[0015] The drive cover has a plurality of flow guide ports inside, and the electronically controlled scraper is composed of an arc-shaped closing plate and a lateral support rod for controlling the arc-shaped closing plate.

[0016] The beneficial effects of this invention are: (1) The self-maintenance device for energy-saving and high-efficiency water collector of high-level water collection cooling tower of the present invention has an upper electrically controlled top adjustment ring and a lower electrically controlled top adjustment ring installed on the upper and lower ends of the internal assembly frame, respectively. The operation cycle is carried out by top rotation spraying and bottom centrifugal pumping, which not only greatly improves the resource recycling rate but also reduces the cost. (2) The electric centrifugal blades inside the bottom electric control top adjustment ring can not only centrifuge and return the remaining cleaning liquid, but also circulate and guide the internal flow after cleaning, thereby quickly drying the water collector, greatly improving the maintenance effect and avoiding cleaning liquid residue. (3) An electrically controlled bottom closing cover is hinged to the lower surface of the internal assembly frame, which can form a closed cover under the water collector to prevent the cleaning liquid from flowing to the bottom of the cooling tower, thus eliminating the need for long-term shutdown maintenance and reducing the impact on production. (4) The entire maintenance process does not require manual entry into the cooling tower, greatly improving safety; (5) A telescopic booster spray pipe is fixedly installed on the inner side of the top electric control adjustment ring. It can automatically control its extension and retraction according to the internal water pressure, thereby increasing the spray range and avoiding excessive water pressure at a single position from affecting the service life of the water collector. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the telescopic booster nozzle in this invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of the bottom-mounted electrically controlled top adjustment ring in this invention. In the diagram: 1. Main tower body; 2. Water collector module; 3. Internal assembly frame; 31. Internal flow guiding chamber; 32. Annular metal filter screen; 4. Top-mounted electrically controlled top adjustment ring; 41. Top adjustment ring; 42. Lateral flow guide seat; 43. Top drive motor; 5. Bottom-mounted electrically controlled top adjustment ring; 51. Drive cover; 511. Flow guide port; 52. Centrifugal blade; 53. Bottom drive motor; 54. Electrically controlled scraper; 541. Arc-shaped closing plate; 542. Lateral support rod; 6. Telescopic pressurizing nozzle; 61. Fixed pipe body; 62. External extension pipe body; 63. Embedded pressurizing nozzle; 7. Electrically controlled centrifugal blade; 8. Electrically controlled bottom closing cover plate; 81. Bottom flip-up closing cover plate; 82. Lateral adjustment support rod; 11. External slag discharge pipe; 12. External flow guiding pipe; 13. External solenoid valve. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Figure 1 , Figure 2 , Figure 3 and Figure 4 The self-maintenance device for an energy-saving and efficient water collector in a high-level cooling tower is shown. It includes a main tower body 1 and a water collector module 2. An internal assembly frame 3 for installing the water collector module 2 is fixedly mounted on the inner side of the main tower body 1. An upper electrically controlled top adjustment ring 4 is installed on the upper surface of the internal assembly frame 3. A lower electrically controlled top adjustment ring 5 is installed on the lower inner side of the internal assembly frame 3. A telescopic pressurized nozzle 6 is fixedly mounted on the inner side of the upper electrically controlled top adjustment ring 4. An electrically controlled centrifugal blade 7 is movably mounted inside the lower electrically controlled top adjustment ring 5. An electrically controlled bottom closing cover plate 8 is hinged to the lower surface of the internal assembly frame 3.

[0025] To accommodate the upper drive, the upper surface and the lower inner side of the internal assembly frame 3 are provided with annular assembly grooves. The upper electrically controlled top adjustment ring 4 includes an upper adjustment ring 41 that is movably assembled in the annular assembly groove inserted into the upper surface of the internal assembly frame 3, a lateral guide seat 42 fixed on the arc surface of the upper adjustment ring 41, and an upper drive motor 43 for controlling the upper adjustment ring 41.

[0026] The side guide seat 42 is also equipped with an electrically controlled valve. Then, the upper drive motor 43 meshes with the tooth groove on the arc surface of the upper adjustment ring 41 through the upper drive gear on the top rotating shaft, thereby driving the upper adjustment ring 41 to rotate.

[0027] To accommodate elastic extension and retraction, the telescopic booster nozzle 6 includes a fixed tube 61 fixedly installed on the outer opening of the side guide seat 42, an outer extension tube 62 elastically fitted on the outside of the fixed tube 61, and an embedded booster nozzle 63 fixed on the outer wall of the fixed tube 61 and the outer extension tube 62.

[0028] A compression spring is provided between the fixed tube 61 and the external extension tube 62. When idle, the external extension tube 62 is controlled to retract and fit outside the fixed tube 61. When the internal pressure increases, the external extension tube 62 is controlled to extend outward. At this time, the embedded pressure boosting nozzle 63 on the fixed tube 61 will gradually be exposed. By increasing the number of sprays, excessive local pressure is avoided.

[0029] To facilitate the lower movable assembly, the lower electrically controlled top adjustment ring 5 includes a drive cover 51 that is movably inserted into the annular assembly groove at the lower end of the inner assembly frame 3, centrifugal blades 52 fixed on the arc-shaped surface of the drive cover 51, a lower drive motor 53 for controlling the drive cover 51, and an electrically controlled scraper 54 installed at the guide port of the drive cover 51.

[0030] The lower drive motor 53 drives the drive cover 51 by meshing with the tooth groove on the arc surface of the drive cover 51 through the lower drive gear on the bottom rotating shaft, thereby controlling the drive cover 51 to rotate inside the annular assembly groove.

[0031] To facilitate internal flow guidance, the internal assembly frame 3 has an internal flow guidance chamber 31 for connecting the upper and lower annular assembly grooves.

[0032] To facilitate bottom flip-closing, the lower surface of the internal assembly frame 3 has a downwardly protruding bottom mounting bracket. The electrically controlled bottom closing cover 8 includes a bottom flip-closing cover 81 hinged to the bottom mounting bracket and a lateral adjustment strut 82 for controlling the bottom flip-closing cover 81.

[0033] The lateral adjustment strut 82 extends and retracts, thereby controlling the bottom flip-closing cover 81 to flip upward and close the lower opening of the internal assembly frame 3. This separates it from the cooling tower below during maintenance, preventing cleaning fluid from falling into the cooling tower and reducing the difficulty and cost of later maintenance.

[0034] In order to facilitate internal flow guidance, an annular metal filter 32 is fixedly installed inside the internal flow guidance chamber 31.

[0035] To facilitate internal slag discharge and internal cleaning fluid injection, an external slag discharge pipe 11 and an external flow guide pipe 12, which are connected to the internal flow guide chamber 31, are provided on the outer side of the main tower body 1.

[0036] The annular metal filter 32 filters the cleaning fluid and then filters the material at the bottom. During the later slag removal process, the material can be discharged outward through the external slag discharge pipe 11. The external guide pipe 12 can add cleaning fluid into the internal guide chamber 31. The cleaning fluid can be clean water or a mixed solution of cleaning agents.

[0037] To facilitate control of opening and closing, external solenoid valves 13 are installed at the external ports of both the external slag discharge pipe 11 and the external guide pipe 12.

[0038] The external solenoid valve 13 controls the connection between the external slag discharge pipe 11 and the external guide pipe 12 by opening and closing.

[0039] To facilitate scraping, the drive cover 51 has a plurality of flow guide ports 511 inside. The electrically controlled scraper blade 54 is composed of an arc-shaped closing plate 541 and a lateral support rod 542 for controlling the arc-shaped closing plate 541.

[0040] The lateral support rod 542 controls the arc-shaped closing plate 541 to flip outward through telescopic control, thereby forming a scraper plate on the outside of the drive cover 51. When the drive cover 51 rotates, it scrapes off the filter material on the lower surface of the annular metal filter screen 32 and below, and then discharges it outward with the opened external slag discharge pipe 11.

[0041] Equipment working principle This equipment is based on "electronically controlled automated drive + liquid-gas dual-state circulation + zoned functional collaboration". Through the linkage of multiple components, it achieves efficient cleaning, residue treatment and resource recovery of the water collector. The specific working principle is broken down as follows: (a) Top-mounted adjustment and spray cleaning system: all-round, adaptive pressure cleaning Drive and Rotation Principle: The core power of the top-mounted electrically controlled top adjustment ring 4 comes from the top-mounted drive motor 43. The motor output shaft is connected to the top rotating shaft, and the end of the rotating shaft is equipped with an upper-mounted drive gear. This gear precisely meshes with the tooth groove on the arc-shaped outer surface of the top adjustment ring 41. When the top-mounted drive motor 43 starts, the gear transmission drives the top adjustment ring 41 to rotate 360° at a uniform speed within the annular mounting groove on the upper surface of the internal mounting frame 3. The speed can be adjusted according to cleaning requirements (typically 1-3 r / min) to ensure thorough cleaning without dead angles.

[0042] Adaptive pressure regulation of telescopic booster nozzle: The telescopic booster nozzle 6 consists of a fixed tube body 61, an external extension tube body 62, and an embedded booster nozzle 63. The fixed tube body 61 is fixedly connected to the outer opening of the side guide seat 42. The side guide seat 42 has a built-in electric control valve (not separately marked) that can control the flow rate of the cleaning fluid. A compression spring (not separately marked) is fitted between the fixed tube 61 and the external extension tube 62. Under normal conditions, the spring is in a naturally extended state, pulling the external extension tube 62 to contract and wrap around the fixed tube 61. At this time, only the embedded pressure-boosting nozzle 63 at the end of the fixed tube 61 is exposed. When the cleaning fluid is injected into the internal guide chamber 31 through the external guide tube 12 and then enters the fixed tube 61 through the side guide seat 42, the water pressure in the tube increases (normally 0.3-0.5MPa). The water pressure overcomes the elasticity of the compression spring and pushes the external extension tube 62 to extend outward, so that the embedded pressure-boosting nozzles 63 in the middle of the fixed tube 61 and on the external extension tube 62 are gradually exposed (up to 8-12 can be exposed). By increasing the number of nozzles, the water pressure is dispersed, avoiding direct high-pressure spray from a single nozzle from damaging the labyrinthine flow channel of the water collector module 2, while achieving a "short-range high pressure + long-range wide coverage" spraying effect.

[0043] (ii) Bottom-mounted regulation and liquid-gas circulation system: integrated recovery, filtration and drying Centrifugal liquid recovery: The drive cover 51 of the lower electrically controlled top adjusting ring 5 is movably inserted into the annular assembly groove at the lower end of the inner side of the internal assembly frame 3. The lower drive motor 53 is connected to the lower drive gear through the bottom rotating shaft, and meshes with the tooth groove on the arc surface of the drive cover 51 for transmission. During the cleaning process, the lower drive motor 53 drives the drive cover 51 to rotate at a speed of 5-8 r / min. The centrifugal blades 52 on the arc surface of the drive cover 51 rotate synchronously, generating radial centrifugal force. The cleaning liquid after spraying carries impurities and falls into the area of ​​the drive cover 51. It enters the annular assembly groove through the guide port 511 on the drive cover 51. The centrifugal force of the centrifugal blades 52 pushes the cleaning liquid outward, allowing it to flow into the internal guide chamber 31, realizing the directional recovery of the cleaning liquid and preventing liquid residue from remaining on the surface of the water collector module 2.

[0044] Filtration and Impurity Retention: An annular metal filter screen 32 with a pore size of 0.5-1mm is fixedly installed inside the internal flow guiding chamber 31 to accommodate common impurities in circulating water (such as scale particles and microbial flocs). When the recovered cleaning fluid flows through the annular metal filter screen 32, impurities are retained by the screen, and the filtered cleaning fluid remains in the lower part of the internal flow guiding chamber 31. It can then be recycled back into the telescopic pressurized spray pipe 6 through the side flow guide seat 42, achieving a water resource recovery rate of over 70%.

[0045] High-speed airflow drying: After cleaning, the speed of the lower drive motor 53 is increased to 15-20 r / min, and the centrifugal blades 52 rotate at high speed. At this time, the electrically controlled scraper 54 (arc-shaped closing plate 541) at the guide port 511 of the drive cover 51 closes the guide port 511 under the action of the lateral support rod 542, forming a closed annular airflow channel. The rotation of the centrifugal blades 52 drives the air inside the tower to flow upward from the bottom of the water collector module 2. The airflow passes through the labyrinthine flow channel of the water collector module 2, carrying away the residual cleaning liquid on the surface. At the same time, the upper regulating ring 41 keeps rotating at a low speed, the telescopic pressurized nozzle 6 stops supplying liquid, and the embedded pressurized nozzle 63 can assist the airflow, so as to achieve rapid air drying of the surface of the water collector module 2 within 30 minutes (humidity ≤15%), avoiding the growth of microorganisms.

[0046] (III) Electrically controlled closure and slag discharge system: zoned isolation and impurity removal Bottom area isolation: The bottom mounting bracket (not separately marked) on the lower surface of the internal assembly frame 3 is hinged to the electrically controlled bottom closing cover 8. When maintenance is started, the lateral adjustment strut 82 of the electrically controlled bottom closing cover 8 is energized and extends (stroke 10-15cm), pushing the bottom flip closing cover 81 to flip upwards to be parallel to the lower surface of the internal assembly frame 3, completely closing the lower opening of the internal assembly frame 3, forming an independent maintenance space, preventing cleaning fluid and impurities from falling into the cooling tower body (lower part of the main tower body 1), and reducing the amount of cleaning work inside the tower later.

[0047] Directional slag discharge control: The external slag discharge pipe 11 on the outer side of the main tower body 1 is connected to the bottom of the internal guide chamber 31, and the external guide pipe 12 is connected to the upper part of the internal guide chamber 31. Both ports are equipped with external solenoid valves 13. After the cleaning cycle is completed, the external solenoid valve 13 of the external guide pipe 12 is closed, and the external solenoid valve 13 of the external slag discharge pipe 11 is opened. At the same time, the lower drive motor 53 drives the drive cover 51 to rotate, and the lateral support rod 542 of the electrically controlled scraper 54 pushes the arc-shaped closing plate 541 to extend outward and fit against the lower surface of the annular metal filter screen 32. As the drive cover 51 rotates, it scrapes away the impurities trapped on the filter screen. The impurities are discharged from the equipment through the external slag discharge pipe 11 under the action of gravity and airflow, realizing directional cleaning of impurities and avoiding filter screen blockage.

[0048] Equipment working process Phase 1: Maintenance Preparation (approximately 5 minutes) Equipment power-on self-test: The control system (not separately marked) detects the power-on status of the upper drive motor 43, lower drive motor 53, external solenoid valve 13, and lateral adjustment support rods 82 / 542 to ensure that each component is fault-free.

[0049] Bottom area closure: The lateral adjustment strut 82 of the electrically controlled bottom closing cover 8 is activated, extending and pushing the bottom flip closing cover 81 to flip upward around the bottom mounting bracket until the bottom flip closing cover 81 is completely in contact with the lower surface of the internal assembly frame 3, closing the lower opening of the internal assembly frame 3 and forming an independent maintenance cavity.

[0050] Valve initial state setting: The external solenoid valve 13 of the external slag discharge pipe 11 remains closed, and the external solenoid valve 13 of the external guide pipe 12 is opened to prepare for the addition of cleaning fluid.

[0051] Phase 2: Adding cleaning fluid and initializing circulation (approximately 8 minutes) Cleaning fluid injection: Inject cleaning fluid (either clean water or a mixture containing 3%-5% descaling agent) into the internal guide chamber 31 through the external guide pipe 12. The injection volume should be such that the liquid level in the internal guide chamber 31 reaches 2 / 3 of its height (monitored by a liquid level sensor (not separately marked)).

[0052] Side guide valve opening: The electric control valve (not separately marked) inside the side guide 42 is energized and opened, and the cleaning fluid flows from the internal guide chamber 31 into the side guide 42, and then into the fixed pipe 61 of the telescopic pressurized nozzle 6, and the water pressure in the pipe gradually increases.

[0053] Telescopic nozzle pre-extension: When the water pressure inside the fixed pipe 61 reaches 0.2MPa, the compression spring is compressed, and the external extension pipe 62 begins to extend outward, exposing the embedded pressure boosting nozzle 63 in the middle of the fixed pipe 61. At this time, the water pressure inside the pipe stabilizes at 0.3MPa, and the nozzle enters the spraying state.

[0054] Phase 3: All-round spray washing (takes approximately 20-30 minutes, depending on the degree of contamination of the water collector) The upper regulating ring is rotated and started: the upper drive motor 43 is powered on, and through gear meshing, it drives the upper regulating ring 41 to rotate at a constant speed of 2r / min in the annular assembly groove. The upper regulating ring 41 drives the side guide seat 42 and the telescopic pressurized nozzle 6 to rotate synchronously.

[0055] Adaptive spraying execution: The embedded pressurized nozzles 63 of the telescopic pressurized spray pipe 6 (a total of 8-12 on the fixed pipe body 61 and the external extension pipe body 62) spray high-pressure cleaning fluid, which is directed towards the labyrinthine flow channel of the water collector module 2. As the spraying continues, if the water collector module 2 is severely contaminated in some areas (such as flow channel blockage), the water pressure inside the pipe rises to 0.4-0.5MPa, pushing the external extension pipe body 62 to extend further, exposing more embedded pressurized nozzles 63, dispersing the water pressure while expanding the spraying coverage area, and specifically rinsing stubborn scale.

[0056] Bottom-mounted centrifugal recovery start-up: The bottom-mounted drive motor 53 starts and drives the drive cover 51 to rotate at a speed of 6r / min. The centrifugal blades 52 rotate synchronously to generate centrifugal force. The cleaning fluid after spraying carries scale and microbial impurities and falls from the water collector module 2. It enters the annular assembly tank through the guide port 511 of the drive cover 51. Under the centrifugal action of the centrifugal blades 52, it is pushed to the internal guide chamber 31 to complete the first cleaning fluid circulation.

[0057] Phase 4: Cleaning fluid circulation filtration and impurity pre-removal (approximately 15 minutes) Continuous Circulation Filtration: The cleaning fluid flows through the annular metal filter screen 32 in the internal guide chamber 31. Impurities are trapped by the filter screen. The filtered cleaning fluid enters the telescopic pressurized nozzle 6 again through the side guide seat 42, forming a closed loop of "addition-spraying-recovery-filtration-re-spraying". During this period, the external solenoid valve 13 of the external guide pipe 12 is opened intermittently according to the liquid level sensor signal to add a small amount of cleaning fluid (each addition is 10% of the initial injection amount) to maintain a stable circulating liquid level.

[0058] Preliminary scraping preparation: The speed of the lower drive motor 53 is maintained at 6r / min. The lateral support rod 542 of the electronically controlled scraper 54 extends and retracts slightly, pushing the arc-shaped closing plate 541 to make slight contact with the lower surface of the annular metal filter screen 32, pre-cleaning the loose impurities on the filter screen surface to avoid excessive accumulation of impurities affecting the filtration efficiency.

[0059] Phase 5: Final cleaning and thorough removal of impurities (approximately 10 minutes) Spraying stop and circulation shutdown: When the surface contamination of the water collector module 2 reaches the preset standard (visually detected by a camera (not separately marked), the upper drive motor 43 stops rotating, the telescopic pressurized spray pipe 6 stops spraying; the electric control valve inside the side guide seat 42 closes, cutting off the cleaning fluid circulation path; the external solenoid valve 13 of the external guide pipe 12 closes, stopping the filling of cleaning fluid.

[0060] Directional slag discharge execution: The external solenoid valve 13 of the external slag discharge pipe 11 is opened, the speed of the lower drive motor 53 is maintained at 6r / min, the lateral support rod 542 of the electrically controlled scraper 54 is extended, pushing the arc-shaped closing plate 541 to fully extend and fit against the lower surface of the annular metal filter screen 32, and scraping off the impurities on the filter screen as the drive cover 51 rotates; the impurities are discharged from the bottom of the internal guide chamber 31 through the external slag discharge pipe 11 under the action of gravity. The slag discharge process lasts for 5 minutes until the impurities are cleaned up (the pressure inside the external slag discharge pipe 11 is detected by a pressure sensor (not separately marked), and the slag discharge is completed when the pressure is stable).

[0061] Phase 6: Water collector drying process (approximately 30 minutes) Air drying mode switching: The speed of the lower drive motor 53 is increased to 18r / min, and the centrifugal blades 52 rotate at high speed; at the same time, the lateral support rods 542 of the electronically controlled scraper 54 retract, pull the arc-shaped closing plate 541 to reset, close the guide port 511 of the drive cover 51, and form a closed airflow channel.

[0062] Airflow circulation drying: The high-speed rotation of the centrifugal blades 52 drives the air in the main tower body 1 to enter the maintenance chamber from below the water collector module 2. The airflow passes through the labyrinthine flow channel of the water collector module 2, carrying away the residual cleaning liquid on the surface. During this period, the upper drive motor 43 drives the upper regulating ring 41 to rotate at a low speed of 1r / min. The embedded pressurizing nozzle 63 of the telescopic pressurizing nozzle 6 assists in the airflow, ensuring that each flow channel of the water collector module 2 is dried evenly.

[0063] Drying effect detection: The humidity sensor (not separately marked) detects the surface humidity of the water collector module 2. When the humidity is ≤15%, the drying is determined to be completed, and the speed of the lower drive motor 53 is reduced to 3r / min, entering the final stage.

[0064] Phase 7: Maintenance completion and equipment reset (approximately 7 minutes) Slag discharge valve closed: The external solenoid valve 13 of the external slag discharge pipe 11 is closed, ending the slag discharge.

[0065] Bottom closing cover reset: The lateral adjustment strut 82 of the electrically controlled bottom closing cover 8 retracts, pulling the bottom flip closing cover 81 downward to a vertical state, opening the lower end opening of the internal assembly frame 3, and restoring the connection between the water collector module 2 and the cooling tower body.

[0066] Component shutdown and self-test: The upper drive motor 43 and the lower drive motor 53 stop running, and all external solenoid valves 13 are reset to their initial state; the control system performs a self-test on each component again to ensure that there are no abnormalities, and then the equipment returns to standby mode to wait for the next maintenance instruction.

[0067] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A self-maintenance device for an energy-efficient water collector in a high-level cooling tower, comprising a main tower body (1) and a water collector module (2), characterized in that: The inner side of the main tower body (1) is fixedly equipped with an internal assembly frame (3) for installing the water collector module (2). The upper surface of the internal assembly frame (3) is equipped with an upper electrically controlled top adjustment ring (4). The lower end of the inner side of the internal assembly frame (3) is equipped with a lower electrically controlled top adjustment ring (5). The inner side of the upper electrically controlled top adjustment ring (4) is fixedly equipped with a telescopic pressurizing nozzle (6). The lower electrically controlled top adjustment ring (5) is movably equipped with an electrically controlled centrifugal blade (7). The lower surface of the internal assembly frame (3) is hinged with an electrically controlled bottom closing cover plate (8).

2. The self-maintenance device for an energy-saving and high-efficiency water collector in a high-level water collection cooling tower according to claim 1, characterized in that: The inner assembly frame (3) has an annular assembly groove on its upper surface and lower inner side. The upper electrically controlled top adjustment ring (4) includes an upper adjustment ring (41) that is movably assembled in the annular assembly groove on the upper surface of the inner assembly frame (3), a side guide seat (42) fixed on the arc surface of the upper adjustment ring (41), and an upper drive motor (43) for controlling the upper adjustment ring (41).

3. The self-maintenance device for an energy-saving and high-efficiency water collector in a high-level water collection cooling tower according to claim 2, characterized in that: The telescopic booster nozzle (6) includes a fixed tube body (61) fixedly installed on the outside opening of the side guide seat (42), an external extension tube body (62) elastically fitted on the outside of the fixed tube body (61), and an embedded booster nozzle (63) fixed on the outer wall of the fixed tube body (61) and the external extension tube body (62).

4. The self-maintenance device for an energy-saving and high-efficiency water collector in a high-level water collection cooling tower according to claim 1, characterized in that: The lower electrically controlled top adjustment ring (5) includes a drive cover (51) that is movably inserted into the annular assembly groove at the lower end of the inner side of the inner assembly frame (3), centrifugal blades (52) fixed on the arc surface of the drive cover (51), a lower drive motor (53) for controlling the drive cover (51), and an electrically controlled scraper (54) installed in the guide port (511) of the drive cover (51).

5. The self-maintenance device for an energy-saving and high-efficiency water collector in a high-level water collection cooling tower according to claim 1, characterized in that: The internal assembly frame (3) has an internal guide chamber (31) for connecting the upper and lower annular assembly grooves.

6. The self-maintenance device for an energy-saving and high-efficiency water collector in a high-level water collection cooling tower according to claim 1, characterized in that: The lower surface of the internal assembly frame (3) has a bottom mounting bracket that protrudes downwards, and the electrically controlled bottom closing cover (8) includes a bottom flip closing cover (81) hinged to the bottom mounting bracket and a lateral adjustment strut (82) for controlling the bottom flip closing cover (81).

7. A self-maintenance device for an energy-saving and high-efficiency water collector in a high-level water collection cooling tower according to claim 5, characterized in that: An annular metal filter (32) is fixedly installed inside the internal flow guiding chamber (31).

8. The self-maintenance device for an energy-saving and high-efficiency water collector in a high-level water collection cooling tower according to claim 1, characterized in that: The outer side of the main tower body (1) is provided with an external slag discharge pipe (11) and an external guide pipe (12) that are connected to the internal guide chamber (31).

9. A self-maintenance device for an energy-saving and high-efficiency water collector in a high-level water collection cooling tower according to claim 8, characterized in that: External solenoid valves (13) are installed at the external ports of both the external slag discharge pipe (11) and the external guide pipe (12).

10. A self-maintenance device for an energy-saving and high-efficiency water collector in a high-level water collection cooling tower according to claim 4, characterized in that: The drive cover (51) has a plurality of flow guides (511) inside, and the electronically controlled scraper (54) is composed of an arc-shaped closing plate (541) and a lateral support rod (542) for controlling the arc-shaped closing plate (541).

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