High-density raw water treatment device for thermal power plant

Abstract

The invention relates to the technical field of water treatment, in particular to a high-density raw water treatment device for a thermal power plant. The high-density raw water treatment device for the thermal power plant comprises a treatment container, a filtering piece, a collecting piece and a cleaning assembly. Raw water to be filtered enters the treatment container from the liquid inlet and is filtered by the filtering piece, impurities in the raw water are left on the filtering piece, and the filtered raw water is discharged out of the treatment container from the liquid outlet. Impurities on the filtering part can enter the collecting area of the collecting part, the filtering part is prevented from being blocked by the impurities, and when the impurities in the to-be-collected area are accumulated to a certain amount, the collecting part is driven by the cleaning assembly to move out of the processing container, so that the impurities in the collecting area of the collecting part can be cleaned conveniently; the whole cleaning process does not need to enter the treatment container, and operation is convenient.

Description

Technical Field

[0001] This application relates to the field of water treatment technology, and in particular to a high-density raw water treatment device for thermal power plants. Background Technology

[0002] High-density raw water treatment in thermal power plants typically includes steps such as pretreatment, coagulation and sedimentation, filtration, and disinfection. The coarse filtration stage in the pretreatment phase is the starting point of the entire treatment process. Its purpose is to remove impurities such as large particulate suspended solids, floating matter, and some organic matter, thereby creating favorable conditions for the coagulation reaction and sedimentation separation in the subsequent high-density sedimentation tank.

[0003] In existing high-density raw water treatment systems in thermal power plants, filter elements are fixedly installed inside a filtration tank. Raw water enters the filtration tank before filtration and passes through the filter elements, leaving impurities on them. After a period of filtration, to prevent the filter elements from clogging and affecting subsequent filtration efficiency, it is necessary to enter the filtration tank to clean the impurities fixed on the filter elements, which is very inconvenient. Summary of the Invention

[0004] This application provides a high-density raw water treatment device for thermal power plants to solve the problem that cleaning the filter elements in the prior art requires entering the filter tank, which leads to inconvenience in cleaning.

[0005] This application provides a high-density raw water treatment device for thermal power plants, comprising: a treatment container having an inlet for raw water before filtration to enter the treatment container and an outlet for raw water after filtration to exit the treatment container; a filter element disposed inside the treatment container to filter impurities in the raw water; a collection element having a collection area configured to accommodate impurities filtered by the filter element; and a cleaning assembly including a guide rail partially disposed inside the treatment container, the collection element being movably connected to the guide rail and capable of being driven to reciprocate along the guide rail to the inside and outside of the treatment container to clean impurities on the collection element outside the treatment container.

[0006] Preferably, the guide rail extends vertically, with its bottom located inside the processing container and its top located outside the processing container. The cleaning assembly also includes a movable frame that slides into the guide rail and a driver that drives the movable frame. The movable frame is connected to the collection unit, and the movable frame can drive the collection unit to move along the guide rail under the drive of the driver.

[0007] Preferably, the driver includes a motor, a reel connected to the motor, and a pull rope wound on the reel. The end of the pull rope is connected to the movable frame. The pull rope can be wound on the reel under the drive of the motor and pull the movable frame to move along the guide rail.

[0008] Preferably, the cleaning assembly also includes a mounting bracket connected to the top of the processing container. The mounting bracket is located outside the processing container, with the bottom end of the guide rail connected to the bottom wall of the processing container and the top end connected to the mounting bracket. The motor is mounted on the mounting bracket.

[0009] Preferably, the collection component is rotatable relative to the moving frame, and the cleaning assembly further includes a flipper connected to the collection component, which can flip the collection component relative to the moving frame under the drive of the flipper, so that impurities on the collection component slide off.

[0010] Preferably, the flipper is formed as a telescopic rod, with its fixed end rotatably connected to the movable frame and its telescopic end rotatably connected to the collecting component.

[0011] Preferably, the filter element is formed as a plate-like structure, which is configured to block impurities in the raw water. The collector is disposed on one side of the filter element, and the filter element is inclined toward the collector so that impurities on the filter element slide into the collection area of ​​the collector.

[0012] Preferably, the collecting element includes a baffle and a support plate connected to the baffle, the two having an included angle and cooperating to form a collecting area, and the collecting element is disposed below the filter element.

[0013] Preferably, the filter element has a filtration gap, and multiple filter elements are provided. Along the flow direction of the raw water, multiple filter elements are arranged sequentially at intervals, and the filtration gaps of the filter elements decrease sequentially.

[0014] Preferably, the collecting element has a leakage gap, and the collecting elements are configured to correspond one-to-one with the filter elements, wherein the size of the leakage gap of each collecting element is the same as the size of the filtration gap of its corresponding filter element.

[0015] The beneficial effects of this application are as follows:

[0016] The raw water to be filtered enters the treatment container through the inlet and is filtered by the filter element. Impurities in the raw water remain on the filter element, and the filtered raw water is discharged out of the treatment container through the outlet. Impurities on the filter element can enter the collection area of ​​the collector, preventing clogging of the filter element. When the impurities in the collection area accumulate to a certain amount, the cleaning component moves the collector outside the treatment container to facilitate the cleaning of impurities in the collection area. The entire cleaning process does not require entering the treatment container, making it convenient to operate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A plan view of a high-density raw water treatment device for a thermal power plant provided in an embodiment of this application;

[0019] Figure 2 for Figure 1 A 3D view of the high-density raw water treatment unit in a thermal power plant after the removal of the treatment containers, filters, and cleaning components from the guide rails.

[0020] Figure 3 for Figure 1 A three-dimensional view of the cleaning component structure of a high-density raw water treatment unit in a thermal power plant.

[0021] Figure 4 for Figure 3 A magnified view of part A in the image;

[0022] Figure 5 for Figure 1 A perspective view of the filter elements, collection elements, cleaning components, moving frames, tilting devices, pulleys, and chains of a high-density raw water treatment unit in a thermal power plant; and

[0023] Figure 6 for Figure 5 A 3D view after the filter components have been removed.

[0024] Figure label:

[0025] 10. Processing container; 11. Inlet; 12. Outlet; 13. Sloping bottom surface; 20. Filter element; 30. Collector; 31. Baffle; 32. Support plate; 40. Cleaning assembly; 41. Guide rail; 42. Moving frame; 43. Driver; 431. Motor; 432. Reel; 433. Pull rope; 434. Guide wheel; 44. Mounting frame; 441. Connecting frame; 442. Reinforcing rib; 443. Lifting rod; 444. Reinforcing plate; 445. Mounting plate; 446. Connecting beam; 45. Tilter; 46. Pulley; 50. Chain. Detailed Implementation

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

[0027] The following is combined Figures 1 to 6 This application describes a high-density raw water treatment device for a thermal power plant, comprising: a treatment container 10 having an inlet 11 for raw water before filtration to enter the treatment container 10 and an outlet 12 for raw water after filtration to exit the treatment container 10; a filter element 20 disposed within the treatment container 10 to filter impurities in the raw water; a collection element 30 having a collection area configured to accommodate impurities filtered by the filter element 20; and a cleaning assembly 40 including a guide rail 41 partially disposed within the treatment container 10, wherein the collection element 30 is movably connected to the guide rail 41 and can be driven to reciprocate along the guide rail 41 to the inside and outside of the treatment container 10 to clean impurities on the collection element 30 outside the treatment container 10.

[0028] The raw water to be filtered enters the treatment container 10 through the inlet 11 and passes through the filter element 20, which filters out impurities. The filtered raw water is then discharged from the outlet 12 outside the treatment container 10. The collector 30 is located inside the treatment container 10. Impurities on the filter element 20 enter the collection area of ​​the collector 30, preventing them from clogging the filter element 20 and affecting subsequent filtration. Once a certain amount of impurities accumulates in the collection area, cleaning is required. At this time, the collector 30 is driven to move along the guide rail 41 to the outside of the treatment container 10, where manual cleaning of the impurities in the collection area of ​​the collector 30 is performed. This eliminates the need for the collector to enter the treatment container 10, making cleaning convenient. In the prior art, impurity cleaning can also be achieved through backwashing, but backwashing consumes water resources and the cleaning effect is unstable. The cleaning method of this application does not require backwashing, saving water resources and achieving ideal cleaning results. In addition, existing technologies, besides filtration, also include sedimentation and coagulation sedimentation for impurity removal. The former has limited ability to remove fine particles, requires a large area and is costly, while the latter requires precise control of the dosage of the agent and is prone to secondary pollution if the sludge is not properly treated. The filtration method proposed in this application can solve the above-mentioned problems caused by these two methods.

[0029] The collection area of ​​the collection element 30 can also gather impurities on the filter element 20, preventing impurities from accumulating and increasing the cleaning load. Figure 1 As shown, the inlet 11 of the treatment container 10 can be located at the top, or the top of the treatment container 10 can be set as an open opening, which forms the inlet 11. The outlet 12 of the treatment container 10 is located on the lower side. The bottom surface of the treatment container 10 is set as an inclined bottom surface 13, with the inclined direction facing the outlet 12, so that the filtered raw water flowing to the bottom of the treatment container 10 can flow along the inclined bottom surface 13 to the outlet 12.

[0030] Please refer to Figures 1 to 3 , Figure 5 and Figure 6 ,in, Figure 1 This is a plan view of a high-density raw water treatment device for a thermal power plant provided in an embodiment of this application. Figure 2 A perspective view of the high-density raw water treatment unit in a thermal power plant after the removal of the treatment container 10, filter element 20, and cleaning assembly 40's guide rail 41. Figure 3 A three-dimensional view of the 40-part structure of the cleaning component of a high-density raw water treatment unit in a thermal power plant. Figure 5 A perspective view of the moving frame 42, tilter 45, pulley 46, and chain 50 of the filter element 20, collection element 30, and cleaning assembly 40 of a high-density raw water treatment device for a thermal power plant. Figure 6 for Figure 5 A 3D view after removing filter element 20.

[0031] In some embodiments provided in this application, the guide rail 41 extends vertically, with its bottom located inside the processing container 10 and its top located outside the processing container 10. The cleaning assembly 40 also includes a movable frame 42 that is slidably engaged with the guide rail 41 and a driver 43 that is driven to connect to the movable frame 42. The movable frame 42 is connected to the collection member 30, and the movable frame 42 can drive the collection member 30 to move along the guide rail 41 under the drive of the driver 43.

[0032] When the movable frame 42 moves along the guide rail 41 into the processing container 10, the collecting element 30 is also located inside the processing container 10. At this time, the collecting element 30 can collect the impurities filtered by the filter element 20. When the movable frame 42 moves along the guide rail 41 to the outside of the processing container 10, the collecting element 30 is also located outside the processing container 10, specifically the upper part of the processing container 10. At this time, the impurities accumulated in the collection area of ​​the collecting element 30 can be cleaned, preventing the processing container 10 from obstructing the cleaning of impurities. The movable frame 42 can provide an installation position for the collecting element 30 so that the collecting element 30 can be stably fixed inside the processing container 10, and can drive the collecting element 30 to move, ensuring the stability of the movement of the collecting element 30.

[0033] The movable frame 42 can be formed into a plate-like structure to increase the stability of the connection and movement of the collecting component 30. A pulley 46 is provided on the side of the movable frame 42. The pulley 46 cooperates with the guide rail 41 so that, driven by the driver 43, the pulley 46 rolls along the guide rail 41, thereby achieving a sliding engagement between the movable frame 42 and the guide rail 41. Specifically, multiple pulleys 46 can be provided, distributed on the upper and lower parts of opposite sides of the movable frame 42.

[0034] Please refer to Figures 1 to 4 ,in, Figure 4 for Figure 3 The enlarged view of part A shows the structure of driver 43.

[0035] In some embodiments provided in this application, the driver 43 includes a motor 431, a reel 432 connected to the motor 431, and a pull rope 433 wound on the reel 432. The end of the pull rope 433 is connected to the movable frame 42. The pull rope 433 can be wound on the reel 432 under the drive of the motor 431 and pull the movable frame 42 to move along the guide rail 41.

[0036] When the moving frame 42 moves from the inside to the outside of the processing container 10, the motor 431 rotates forward, driving the reel 432 to rotate. The reel 432 winds the pull rope 433, which pulls the moving frame 42 upward, causing it to move upward along the guide rail 41 to the outside of the processing container 10. When the moving frame 42 moves from the outside to the inside of the processing container 10, the motor 431 rotates in reverse, driving the reel 432 to rotate. The reel 432 releases the pull rope 433, and the moving frame 42 moves downward along the guide rail 41 to the inside of the processing container 10 under its own weight and the weight of the collecting element 30. The collecting element 30 awaits the impurities filtered by the subsequent filter element 20 to enter the collection area. The motor 431 has a large driving force, which can apply a large pulling force to the moving frame 42 through the reel 432 and the pull rope 433 to smoothly drive the moving frame 42 upward. The cooperation between the reel 432 and the pull rope 433 is not prone to jamming, making the movement of the moving frame 42 smooth.

[0037] The processing container 10 has an opening to allow the moving frame 42 and the collector 30 to enter and exit the processing container 10. The top of the processing container 10 can be completely open to simultaneously form an inlet 11 and an opening. The motor 431 rotates clockwise and counterclockwise. The pull rope 433 can be a high-strength steel wire rope, capable of stably pulling the moving frame 42, the collector 30, and impurities within the collection area. Figure 4 As shown, the driver 43 also includes a guide wheel 434, which is mounted on the mounting frame 44 (described in detail later). One end of the pull rope 433 is fixed to the reel 432 and rests on the guide wheel 434. After changing direction through the guide wheel 434, the other end is fixed to the movable frame 42. The guide wheel 434 is used to prevent the pull rope 433 from directly contacting the mounting frame 44, which would cause wear on the pull rope 433 or the mounting frame 44. It is also used to prevent friction between the pull rope 433 and the mounting frame 44, which would cause the pull rope 433 to jam.

[0038] Please refer to Figures 1 to 3 In some embodiments provided in this application, the cleaning component 40 also includes a mounting bracket 44 connected to the top of the processing container 10. The mounting bracket 44 is located outside the processing container 10. The bottom end of the guide rail 41 is connected to the bottom wall of the processing container 10, and the top end is connected to the mounting bracket 44. The motor 431 is mounted on the mounting bracket 44.

[0039] Mounting bracket 44 provides mounting positions for guide rail 41 and driver 43, increases the stability of guide rail 41, and provides sufficient support for moving bracket 42 when it moves, increasing the stability of moving bracket 42 during movement.

[0040] Among them, such as Figure 2 and Figure 3 As shown, the mounting frame 44 includes a connecting frame 441 connected to the top of the processing container 10, reinforcing ribs 442 connected to the connecting frame 441, lifting rods 443 connected above the connecting frame 441, reinforcing plates 444 connected to the lifting rods 443, mounting plates 445, and connecting beams 446. The connecting frame 441 is formed into a rectangular frame and its size is adapted to the size of the opening of the processing container 10 to be fixed to the edge of the opening. Two reinforcing ribs 442 are provided and fixed inside the connecting frame 441 to increase the structural strength of the connecting frame 441. Four lifting rods 443 are provided to form a square frame, wherein the bottom ends of two lifting rods 443 are fixedly connected to one side of the connecting frame 441, and the bottom ends of the other two lifting rods 443 are fixedly connected to the other side of the connecting frame 441. The connecting beams 446 are fixedly connected to the top of the lifting rods 443. Two connecting beams 446 are provided, each parallel to the two sides of the connecting frame 441 to which the lifting rods 443 are connected. Each connecting beam 446 is connected to the two lifting rods 443 connected to the same side of the connecting frame 441. Two reinforcing plates 444 are provided and fixedly connected to the upper part of the lifting rods 443. Each reinforcing plate 444 is connected to the two lifting rods 443 connected to different sides of the connecting frame 441, and the two reinforcing plates 444 are parallel. The lifting rods 443, connecting beams 446 and reinforcing plates 444 cooperate to form a rectangular frame. The mounting plate 445 is connected to the two connecting beams 446. Two guide rails 41 are provided on one side of the connecting frame 441. The top ends of the two guide rails 41 are fixedly connected to the two connecting beams 446. The motor 431 is fixed on the mounting plate 445. The guide wheel 434 is provided on the reinforcing plate 444 closer to the guide rail 41.

[0041] Please refer to Figure 5 and Figure 6 In some embodiments provided in this application, the collection component 30 is rotatably configured relative to the movable frame 42, and the cleaning assembly 40 further includes a flipper 45 connected to the collection component 30, which can flip the collection component 30 relative to the movable frame 42 under the drive of the flipper 45, so that impurities on the collection component 30 slide off.

[0042] When impurities in the collection area of ​​the collector 30 are difficult to clean, the collector 30 can be driven to rotate relative to the moving frame 42 by the flipper 45, so that the collector 30 is tilted and the impurities in the collection area can slide to the side of the collector 30 with a lower tilt and accumulate there for easy cleaning.

[0043] Please continue reading. Figure 5 and Figure 6 In some embodiments provided in this application, the flipper 45 is formed as a telescopic rod, with its fixed end rotatably connected to the movable frame 42 and its telescopic end rotatably connected to the collecting member 30.

[0044] by Figure 6 Described in the indicated orientation, the flipper 45 shortens, causing the collecting component 30 to rotate clockwise around its connection point with the movable frame 42, causing impurities in the collection area to accumulate at the connection point between the collecting component 30 and the movable frame 42 for easy cleaning. The movable frame 42 is designed as a plate structure to help the collecting component 30 gather impurities. After the impurities are cleaned, the flipper 45 extends, causing the collecting component 30 to rotate counterclockwise around its connection point with the movable frame 42, allowing the collecting component 30 to return to its original position.

[0045] Two tilters 45 are configured, connected to opposite sides of the collector 30 respectively. Firstly, they increase the driving force applied to the collector 30, enabling it to rotate smoothly. Secondly, the two tilters 45 provide sufficient support to the collector 30 and increase the connection points between the collector 30 and the moving frame 42, thereby increasing the stability of the collector 30 as it moves with the moving frame 42 and its rotation relative to the frame 42. Thirdly, the placement of the tilters 45 provides sufficient space for cleaning impurities, avoiding any impact on cleaning efficiency. The tilters 45 can be pneumatic or hydraulic cylinders.

[0046] Please refer to Figure 1 and Figure 5 In some embodiments provided in this application, the filter element 20 is formed as a plate-like structure, which is configured to block impurities in the raw water. The collector 30 is disposed on one side of the filter element 20, and the filter element 20 is inclined toward the collector 30 so that the impurities on the filter element 20 slide into the collection area of ​​the collector 30.

[0047] After the raw water to be filtered passes through the filter element 20, impurities remain on the filter element 20. The inclined setting of the filter element 20 allows the impurities to slide from the filter element 20 to the collection area of ​​the collection element 30 under their own gravity, without the need for other driving components or manual intervention. On the other hand, it allows the impurities to leave the filter element 20 quickly, avoiding clogging of the filter element 20.

[0048] The filter element 20 has an inclination angle of 15° to 30°. The inlet 11 can be located on one side of the top of the processing container 10. The highest point of the filter element 20 is close to the side of the processing container 10, and the lowest point of the filter element 20 is close to the side of the processing container 10 where the outlet 12 is located. The collector 30 is located close to the side of the processing container 10.

[0049] Please refer to Figure 5 and Figure 6 In some embodiments provided in this application, the collection member 30 includes a baffle 31 and a support plate 32 connected to the baffle 31. The two have an included angle and cooperate to form a collection area. The collection member 30 is disposed below the filter member 20.

[0050] The area above the support plate 32 and the area of ​​the baffle 31 facing the support plate 32 are the collection areas. The support plate 32 is used to hold impurities, and the baffle 31 is used to prevent impurities on the support plate 32 from falling to the bottom of the treatment container 10, thereby preventing impurities from being mixed again into the filtered raw water.

[0051] The included angle between the baffle 31 and the support plate 32 is 90°. The baffle 31 is vertically arranged, and the support plate 32 is horizontally arranged. The baffle 31 is located directly below the lowest side of the filter element 20, so that impurities sliding down from the lowest side of the baffle 31 can accurately enter the collection area.

[0052] Please refer to Figure 5 In some embodiments provided in this application, the filter element 20 has a filtration gap, and multiple filter elements 20 are provided. Along the flow direction of the raw water, multiple filter elements 20 are arranged at intervals in sequence, and the filtration gap of the filter elements 20 decreases in sequence.

[0053] The filtration gaps of multiple filter elements 20 decrease sequentially along the flow direction of the raw water, achieving staged filtration. Larger impurities remain on the upstream filter element 20, where the number of impurities of this size is less than the total number of impurities. This means that filter element 20 filters fewer impurities and is less prone to clogging, allowing raw water and smaller impurities to pass through quickly. Similarly, smaller impurities remain on the next filter element 20, where the number of impurities of this size is also less than the total number of impurities. This means that filter element 20 filters fewer impurities and is less prone to clogging, allowing raw water and even smaller impurities to pass through quickly. This process continues until the raw water passes through the downstream filter element 20. This staged filtration method slows down the clogging rate of the filter elements 20. Combined with the inclined arrangement of the filter elements 20, clogging can be avoided, improving filtration efficiency and enhancing the filtration effect. Impurities that escape from the filtration gaps of the previous filter element 20 due to water flow can be blocked by the next filter element 20, reducing the probability of impurity escape.

[0054] Among them, such as Figure 5As shown, three filter elements 20 can be arranged from top to bottom, with each pair of elements 20 arranged in parallel and spaced equidistant from each other. The filtration gaps of the three filter elements 20 can be 5mm, 3mm, and 1mm, respectively. The middle filter element 20 can be made of glass fiber reinforced plastic, and its surface can be coated with a nano-hydrophobic coating to reduce the adhesion of algae and oil. Of course, the number of filter elements 20 can be designed according to actual needs, and the distance between any two adjacent filter elements 20 can also be designed as required. The filter element 20 can be a grid.

[0055] Please refer to Figure 5 and Figure 6 In some embodiments provided in this application, the collection element 30 has a leakage gap, and the collection element 30 is configured to correspond one-to-one with a plurality of filter elements 20, and the size of the leakage gap of each collection element 30 is the same as the size of the filtration gap of its corresponding filter element 20.

[0056] Impurities sliding from filter element 20 to collector element 30 may be accompanied by liquid. When they fall into the collection area, the liquid separates from the impurities, and the leakage gap allows the liquid to pass through, preventing waste. Each collector element 30 collects only the impurities from its corresponding filter element 20, meaning each collector element 30 collects a small amount of impurities. This results in a longer time for impurities to accumulate in the collection area of ​​each collector element 30 to the point where cleaning is required, thus reducing the cleaning frequency and consequently reducing the frequency of filtration interruptions due to cleaning, thereby improving filtration efficiency.

[0057] Among them, such as Figure 6 As shown, there can be three collection elements 30 arranged from top to bottom, with the three collection elements 30 arranged in parallel. The spacing between any two adjacent collection elements 30 is the same as the spacing between the two filter elements 20 corresponding to those two collection elements 30. The baffles 31 and the support plates 32 of the collection elements 30 can both be grids.

[0058] The high-density raw water treatment device for thermal power plants also includes a chain 50. All the collection components 30 are connected by the chain 50. Each collection component 30 is rotatably connected to the moving frame 42. The flipper 45 is connected to the uppermost collection component 30. By operating the flipper 45, the collection component 30 is driven to rotate relative to the moving frame 42. The collection component 30 drives the other collection components 30 to rotate together relative to the moving frame 42 through the action of the chain 50. Furthermore, under the drive of the chain 50, all the collection components 30 can rotate synchronously, avoiding collisions and interference between different collection components 30.

[0059] In the description of this application, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] In this application, the term "some embodiments," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A high-density raw water treatment device for thermal power plants, characterized in that, include: The processing container has an inlet for raw water before filtration to enter the processing container and an outlet for raw water after filtration to exit the processing container. A filter element is disposed inside the treatment container to filter impurities in the raw water; A collection element having a collection area configured to hold impurities filtered by the filter element; as well as The cleaning assembly includes a guide rail partially disposed within the processing container, the collector being movably connected to the guide rail and capable of being driven to reciprocate along the guide rail to the interior and exterior of the processing container to clean impurities from the collector outside the processing container.

2. The high-density raw water treatment device for thermal power plants according to claim 1, characterized in that, The guide rail extends vertically, with its bottom located inside the processing container and its top located outside the processing container. The cleaning assembly also includes a movable frame that slides on the guide rail and a driver that drives the movable frame. The movable frame is connected to the collection component, and the movable frame can drive the collection component to move along the guide rail under the drive of the driver.

3. The high-density raw water treatment device for thermal power plants according to claim 2, characterized in that, The driver includes a motor, a reel connected to the motor, and a pull rope wound around the reel. The end of the pull rope is connected to the movable frame. The pull rope can be wound around the reel under the drive of the motor and pull the movable frame to move along the guide rail.

4. The high-density raw water treatment device for thermal power plants according to claim 3, characterized in that, The cleaning assembly also includes a mounting bracket connected to the top of the processing container. The mounting bracket is located outside the processing container. The bottom end of the guide rail is connected to the bottom wall of the processing container, and the top end is connected to the mounting bracket. The motor is mounted on the mounting bracket.

5. The high-density raw water treatment device for thermal power plants according to claim 2, characterized in that, The collection component is rotatably configured relative to the movable frame, and the cleaning assembly further includes a flipper connected to the collection component, which is capable of flipping relative to the movable frame under the drive of the flipper, so that impurities on the collection component slide off.

6. The high-density raw water treatment device for thermal power plants according to claim 5, characterized in that, The flipper is formed as a telescopic rod, with its fixed end rotatably connected to the movable frame and its telescopic end rotatably connected to the collecting component.

7. The high-density raw water treatment device for thermal power plants according to claim 1, characterized in that, The filter element is formed into a plate-like structure, which is configured to block impurities in the raw water. The collector is disposed on one side of the filter element, and the filter element is inclined toward the collector so that impurities on the filter element slide into the collection area of ​​the collector.

8. The high-density raw water treatment device for thermal power plants according to claim 7, characterized in that, The collecting element includes a baffle and a support plate connected to the baffle, the two having an included angle and cooperating to form the collecting area, and the collecting element is disposed below the filter element.

9. The high-density raw water treatment device for thermal power plants according to claim 7, characterized in that, The filter element has a filtration gap, and there are multiple filter elements arranged sequentially at intervals along the flow direction of the raw water, with the filtration gap of the filter elements decreasing sequentially.

10. The high-density raw water treatment device for thermal power plants according to claim 9, characterized in that, The collection element has a leakage gap, and the collection elements are configured to correspond one-to-one with the filter elements, wherein the size of the leakage gap of each collection element is the same as the size of the filtration gap of its corresponding filter element.

Images