W-shaped inner inflow grille and control system thereof

Abstract

The invention discloses a W-shaped inner inflow grille and a control system thereof, and belongs to the technical field of sewage treatment.The W-shaped inner inflow grille comprises an inflow frame, an inner flow box is arranged on the inner wall of the inflow frame, a control panel is arranged on the outer wall of one side of the inner flow box, and a forward traction belt and a reverse traction belt are arranged on the inner wall of the inner flow box; a flow guide frame is arranged at the bottom of the inner ring of the forward traction belt, multiple sets of inclined nozzles are formed in the side wall of the flow guide frame, and an impurity conveying frame is arranged above the flow guide frame. According to the invention, the synchronous discharge proportion of filtered impurities and media is analyzed, so that whether the interior of the internal inflow device is blocked or not is judged, a telescopic mechanical arm and related parts are controlled to operate, the impurities which are stubborn attached to a W-shaped net rack are purposefully clamped and removed, the layout change of the space of an inner cavity of the internal inflow box can be realized, and the service life of the internal inflow device is prolonged. And the aeration structure is combined to realize shunting and fine contact of a medium with the W-shaped net rack, so that the blocking and filtering probability of impurities such as hair and fiber fabrics can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a W-shaped inner flow inlet grille and a control system thereof. Background Art

[0002] As the primary link in rainwater and sewage treatment, the internal inlet grid is mainly used to intercept inert impurities such as suspended matter, rubber and plastic products, hair, and plant fibers in rainwater and sewage. The operating efficiency of the fine grid will directly affect the operating effect of subsequent units, the service life of the equipment, and the overall process efficiency. With the improvement of emission standards, the requirements for pretreatment units of high-emission standard sewage treatment processes such as multi-stage A0, MBR, and BAF are also constantly increasing. It has become an industry consensus to efficiently and stably remove suspended impurities in the influent, which has put forward higher requirements for the technological innovation and product innovation of ultra-fine grids.

[0003] In combination with the above content, it should be explained that during the use of the traditional internal flow filter device, due to the influence of the internal flow area of ​​the internal flow device, it is easy to cause the probability of low contact between impurities such as hair and fiber fabrics in the medium and the interception structure, resulting in the internal flow filter device The filtering effect of the medium is not ideal. At the same time, there are problems such as some impurities such as hair and fiber fabrics are entangled in the interception structure and are difficult to clean. Summary of the invention

[0004] The purpose of the present invention is to provide a W-shaped inner flow grille and a control system thereof, which comprehensively supervises and analyzes the use process of the inner flow filter device before and during filtration, that is, compares and analyzes the collected data with the preset stored data, obtains relevant rating signals, and controls relevant components to perform compensatory operations accordingly. Therefore, it can analyze the proportion of synchronous external discharge of impurities and media after filtration, and judge whether there is blockage inside the inner flow device accordingly, control the operation of the telescopic mechanical arm and related components, and purposefully clamp and remove the stubborn impurities attached to the W-shaped grid, and realize the layout change of the inner cavity space of the inner flow box, and realize the diversion of the medium in fine contact with the W-shaped grid in combination with the aeration structure, which helps to improve the probability of intercepting impurities such as hair and fiber fabrics, so as to solve the problems raised.

[0005] To achieve the above object, the present invention provides the following technical solutions: a W-shaped inner inlet grille, comprising an inlet frame, an inner flow box is arranged on the inner wall of the inlet frame, a control panel is arranged on the outer wall of one side of the inner flow box, a forward traction belt and a reverse traction belt are arranged on the inner wall of the inner flow box, a guide frame is arranged at the bottom of the inner circle of the forward traction belt, a plurality of groups of oblique nozzles are arranged on the side wall of the guide frame, and an impurity conveying frame is arranged above the guide frame;

[0006] Intake inclined plates are symmetrically arranged on the inner walls on both sides of the top of the impurity conveying rack, a telescopic mechanical arm is arranged above the intake inclined plates, an electric guide rail connected to the frame bodies on both sides of the impurity conveying rack is arranged at the bottom of the telescopic mechanical arm, and a top cover close to the impurity conveying rack is arranged on the top of the inner flow box.

[0007] Furthermore, a base frame is provided at the bottom of the inner wall of the inlet frame, an outlet frame standing upright with the inlet frame is provided at the other end of the base frame, an inlet sealing valve is provided in the middle of one end of the inlet frame, an outlet sealing valve is provided at the bottom of the other end of the outlet frame, and a slag discharge valve is provided on the top of the outlet sealing valve.

[0008] Furthermore, a plurality of transmission frames are arranged on the inner wall of the inner flow box, a driving motor connected to the transmission frame is arranged at the bottom of one side of the inner flow box, a chain connected to the forward traction belt and the reverse traction belt is arranged on the inner wall of the transmission frame, a plurality of W-shaped grids are arranged on the inner circle walls of the forward traction belt and the reverse traction belt, and an upper spray cavity is recessed on the inner wall of the top of the inner flow box.

[0009] Furthermore, a forward inclined plate located inside the forward traction belt is provided at one end of the guide frame, a reverse inclined plate located inside the reverse traction belt is provided side by side on the end face of the forward inclined plate, the inclined nozzles are respectively provided on one side of the forward inclined plate and the other side of the reverse inclined plate, a traction chain is installed in the middle of one end of the forward inclined plate, and a servo motor connected to the traction chain is provided inside one end of the forward inclined plate.

[0010] Furthermore, a bracket is provided at the top of one end of the impurity conveying rack, a conveyor belt connected to the bottom of the suction ramp is provided at the bottom of the bracket, an electric cutter is provided on the inner wall of the top of one end of the bracket close to the conveyor belt, and a scraper is provided under the electric cutter, a plurality of groups of suction ramps are arranged in a V shape along both sides of the conveyor belt, and storage bins are provided in the recessed tops of both sides of the suction ramps.

[0011] Furthermore, a return water trough connecting the conveyor belt and the suction ramp is provided at the bottom of the impurity conveying rack, a debris cleaning nozzle facing the conveyor belt is provided at the top of the suction ramp, a sliding cover is slidably provided on the side of the top of the storage bin, the electric guide rail is embedded in the bottom wall of the storage bin, a rotary cylinder connected to the telescopic mechanical arm is provided on the top of the electric guide rail, and a clamp is provided on the top of the telescopic mechanical arm.

[0012] Furthermore, air intake grilles are provided on the outer walls on both sides of the top cover, air pumps are provided side by side on the sides of the air intake grilles, a high-pressure nozzle inserted into the inner flow box and facing the impurity conveying rack is provided at the bottom of the air pump, and a regulating valve is provided at the pipe connection between the air pump and the high-pressure nozzle.

[0013] The present invention also proposes a control system for a W-shaped inner air intake grille, wherein a processor, a data acquisition module, a joint self-checking module and a signal execution module are arranged inside the control panel;

[0014] The data acquisition module is used to collect the impurity percentage fluctuation value HZz of the medium passing through the inner flow box and the filter residue delivery value LZz transported outward on the impurity conveyor belt during the use of the inner inlet filter device, and send the impurity percentage fluctuation value HZz and the filter residue delivery value LZz to the joint self-check module through the processor;

[0015] After receiving the impurity ratio fluctuation value HZz and the filter residue delivery value LZz, the data analysis module immediately analyzes the filter plugging risk of the internal inlet filter device. The specific analysis process is as follows: the impurity ratio fluctuation value HZz and the filter residue delivery value LZz of the internal inlet filter device within the time threshold are obtained, the filter plugging risk coefficient LSi is obtained by the formula, and the preset filter plugging risk coefficient YSi stored and entered is retrieved from the processor for comparison and analysis with the filter plugging risk coefficient LSi; if the filter plugging risk coefficient LSi ≥ the preset filter plugging risk coefficient YSi, it is determined that there is an abnormal blockage risk in the use of the internal inlet filter within the time threshold, and a cleaning signal is generated. The generated signal is sent to the signal execution module via the processor. After receiving the cleaning signal, the signal execution module immediately operates the electric guide rail; if the filter plugging risk coefficient LSi < the preset filter plugging risk coefficient YSi, no signal is generated.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention collects data of the internal inlet filter device during use, obtains the fluctuation value of the impurity ratio and the filter residue delivery value, and comprehensively supervises and analyzes the use process of the internal inlet filter device before and during filtration, that is, compares and analyzes the collected data with the preset storage data, obtains relevant rating signals, and controls relevant components to perform compensatory operations accordingly, so that it can analyze the synchronous external discharge ratio of impurities and media after filtration, and judge whether there is a blockage phenomenon inside the internal inlet device accordingly, and control the operation of the telescopic mechanical arm and related components accordingly, and purposefully clamps and removes the stubbornly attached impurities on the W-shaped grid, and can also change the layout of the inner cavity space of the internal flow box, and realize the diversion of the medium in fine contact with the W-shaped grid in combination with the aeration structure, which is helpful to improve the probability of intercepting impurities such as hair and fiber fabrics;

[0018] 2. The present invention realizes targeted aeration of the medium after diversion to interfere with the flow trajectory by using the linkage of the guide frame with the forward traction belt and the reverse traction belt, so as to make the impurities such as hair and fiber fabrics mixed in the medium contact with the W-shaped grid frame, and utilizes the traction chain to offset and divert the medium entering the inner flow box, so as to divert the medium and directly intercept and lift up some impurities such as hair and fiber fabrics in the medium for transportation;

[0019] 3. The present invention uses a top cover in conjunction with an impurity conveying rack to achieve multi-axial intermittent pneumatic cleaning of impurities such as hair and fiber fabrics intercepted on the W-shaped grid. The hair and fiber fabrics fall rapidly due to the deadweight of the adsorption medium on them and the moving trajectory of the W-shaped grid. An electric cutter and a scraper are used in conjunction with the impurity conveying rack and a traction chain to achieve truncated scraping and unloading of the intercepted hair and fiber fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0021] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the framework of the present invention;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the inner flow box of the present invention;

[0024] Figure 4 It is a schematic diagram of the connection structure of the forward traction belt and the reverse traction belt of the present invention;

[0025] Figure 5 It is a schematic diagram of the internal cross-sectional structure of the inner flow box of the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the impurity conveying rack of the present invention;

[0027] Figure 7 It is a partial cross-sectional structural schematic diagram of the impurity conveying rack of the present invention;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the guide frame of the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the top cover of the present invention;

[0030] Fig.10 It is a flow chart of the system of the present invention.

[0031] Reference numerals: 1, inlet frame; 101, outlet frame; 102, bottom frame; 103, inlet sealing valve; 104, slag discharge valve; 105, outlet sealing valve; 2, control panel; 3, top cover; 301, air inlet grille; 302, air pump; 303, high pressure nozzle; 304, regulating valve; 4, inner flow box; 401, transmission frame; 402, forward traction belt; 403, W-shaped grid; 404, reverse traction belt; 405, upper spray chamber; 40 6. Driving motor; 5. Guide frame; 501. Forward inclined plate; 502. Reverse inclined plate; 503. Oblique nozzle; 504. Drag chain; 6. Impurity conveying frame; 601. Bracket; 602. Conveyor belt; 603. Storage bin; 604. Return water tank; 605. Suction inclined plate; 606. Impurity cleaning nozzle; 607. Sliding cover; 608. Electric guide rail; 609. Telescopic mechanical arm; 610. Clamp; 611. Electric cutter; 612. Scraper. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: This embodiment is used to solve the problem that during the use of the traditional internal flow filter device, due to the influence of the internal flow area of ​​the internal flow device, there is a low probability of contact between impurities such as hair and fiber fabrics in the medium and the interception structure, which makes the internal flow filter device have an unsatisfactory filtering effect on the medium. At the same time, there are problems such as some impurities such as hair and fiber fabrics being entangled in the interception structure and difficult to clean.

[0034] See also Figure 1 - Fig.10 As shown, this embodiment is a W-shaped inner inlet grille, including an inlet frame 1, an inner flow box 4 is arranged on the inner wall of the inlet frame 1, a control panel 2 is arranged on the outer wall of one side of the inner flow box 4, a forward traction belt 402 and a reverse traction belt 404 are arranged on the inner wall of the inner flow box 4, a guide frame 5 is arranged at the bottom of the inner circle of the forward traction belt 402, a plurality of groups of oblique nozzles 503 are arranged on the side wall of the guide frame 5, and an impurity conveying frame 6 is arranged above the guide frame 5;

[0035] Suction inclined plates 605 are symmetrically arranged on the inner walls on both sides of the top of the impurity conveying rack 6, a telescopic mechanical arm 609 is arranged above the suction inclined plates 605, and an electric guide rail 608 connected to the frame bodies on both sides of the impurity conveying rack 6 is arranged at the bottom of the telescopic mechanical arm 609, and a top cover 3 close to the impurity conveying rack 6 is arranged on the top of the inner flow box 4;

[0036] According to the W-shaped inner inlet grille, a control system of the W-shaped inner inlet grille is also proposed, wherein a processor, a data acquisition module, a joint self-check module and a signal execution module are arranged inside the control panel 2; the data acquisition module is used to collect the impurity ratio fluctuation value HZz of the medium passing through the inner flow box 4 and the filter residue conveying value LZz transported outward on the impurity conveyor belt 6 during the use of the inner inlet filter device, and the impurity ratio fluctuation value HZz and the filter residue conveying value LZz are sent to the joint self-check module via the processor; 30 minutes during the use of the inner inlet filter device is set as the time threshold;

[0037] It should be noted that: the impurity ratio fluctuation value HZz is expressed as the difference between the impurity content in the medium passing through the inner flow box 4 before and after being filtered within the time threshold, the size of the impurity ratio fluctuation value HZz reflects whether the medium is qualified after being processed by the inner inlet filter device, and the larger the value of the impurity ratio fluctuation value HZz, the less qualified the filtering effect of the medium passing through the inner flow box 4 within the time threshold, the filter residue delivery value LZz is expressed as the amount of impurities transported out of the conveyor belt 602 obtained within the time threshold, in addition, the impurity ratio fluctuation value HZz is collected by the infrared scanning sensor 1 installed on the inner wall of the inlet frame 1 and the outlet frame 101, and the filter residue delivery value LZz is collected by the metering sensor and the infrared scanning sensor 2 installed on the impurity conveying frame 6;

[0038] After receiving the impurity ratio fluctuation value HZz and the filter residue delivery value LZz, the data analysis module immediately analyzes the filter plugging risk of the internal inlet filter device. The specific analysis process is as follows:

[0039] Obtain the impurity ratio fluctuation value HZz and the filter residue delivery value LZz of the internal inflow filter device within the time threshold, and use the formula The filter plugging risk coefficient LSi is obtained, wherein a and b are the proportional coefficients of the impurity ratio fluctuation value HZz and the filter residue delivery value LZz, respectively, a>b>0, LSi is expressed as the filter plugging risk coefficient, and the preset filter plugging risk coefficient YSi stored and entered is retrieved from the processor for comparison and analysis with the filter plugging risk coefficient LSi;

[0040] If the filter plugging risk coefficient LSi ≥ the preset filter plugging risk coefficient YSi, it is determined that there is an abnormal plugging risk in the use of the internal inlet filter within the time threshold, and a cleaning signal is generated. The generated signal is sent to the signal execution module through the processor. After receiving the cleaning signal, the signal execution module immediately operates the electric guide rail 608. At the same time, the processor generates "abnormal alarm / equipment sequence n" style text according to the cleaning signal and sends it to the display screen of the general control room, where n represents the equipment sequence number from 0 to 100;

[0041] A micro cylinder connected to the sliding cover 607 is arranged on the inner wall of the top of the storage bin 603, and the micro cylinder drives the sliding cover 607 to slide sideways, so that the storage bin 603 is opened, and the electric guide rail 608 cooperates with the telescopic mechanical arm 609 to stand upright in the storage bin 603, and the clamp 610 is adjusted by the telescopic mechanical arm 609 to approach the W-shaped grid 403, so as to drag and remove the impurities such as hair and fiber fabrics hung on the W-shaped grid 403;

[0042] If the filter plugging risk coefficient LSi is less than the preset filter plugging risk coefficient YSi, no signal is generated.

[0043] Embodiment 2: This embodiment is a W-shaped inner inlet flow grid, wherein a bottom frame 102 is provided at the bottom of the inner wall of the inlet frame 1, an outlet frame 101 erected side by side with the inlet frame 1 is provided at the other end of the bottom frame 102, an inlet sealing valve 103 is provided at the middle of one end of the inlet frame 1, an outlet sealing valve 105 is provided at the bottom of the other end of the outlet frame 101, and a slag discharge valve 104 is provided at the top of the outlet sealing valve 105, and the inlet frame 1 is connected to an external pipe or equipment through the inlet sealing valve 103, for The untreated medium is guided into the inner flow box 4. The medium enters the inner flow box 4 and is guided and diverted by the guide frame 5. The impurities such as hair and fiber fabric in the medium are intercepted and filtered by the forward traction belt 402 and the reverse traction belt 404 and transported to the conveyor belt 602. The intercepted medium is discharged along the outlet sealing valve 105 of the frame 101. The outlet sealing valve 105 is connected to an external device or pipe fitting. At the same time, the conveyor belt 602 on the impurity conveying frame 6 discharges the intercepted impurities through the slag discharge valve 104.

[0044] A plurality of transmission frames 401 are arranged on the inner wall of the inner flow box 4, a driving motor 406 connected to the transmission frame 401 is arranged at the bottom of one side of the inner flow box 4, a chain connected to the forward traction belt 402 and the reverse traction belt 404 is arranged on the inner wall of the transmission frame 401, a plurality of W-shaped grid frames 403 are arranged on the inner circle walls of the forward traction belt 402 and the reverse traction belt 404, and an upper spray chamber 405 is arranged in a depression on the inner wall of the top of the inner flow box 4;

[0045] Before the medium enters the inner flow box 4, the driving motor 406 drives the chain on the transmission frame 401 through the transmission parts, and the chain rotates along part of the transmission frame 401 and drives the forward traction belt 402 to rotate clockwise, and drives the reverse traction belt 404 to rotate reversely along another part of the transmission frame 401 through other accessories. During the rotation, the forward traction belt 402 and the reverse traction belt 404 drive the W-shaped grid 403 to rotate synchronously. During the rotation, the W-shaped grid 403 contacts the passing medium, and the hair, fiber fabrics, etc. in the medium are hooked and filtered. The W-shaped grid 403 is gradually displaced to the top of the impurity conveying frame 6 along with the rotation of the forward traction belt 402 and the reverse traction belt 404, and the high-pressure nozzle 303 and the impurity conveying belt 602 work together to pneumatically clean the hair and fiber fabrics on the W-shaped grid 403 and transport them out;

[0046] A forward inclined plate 501 located inside the forward traction belt 402 is arranged at one end of the guide frame 5, and a reverse inclined plate 502 located inside the reverse traction belt 404 is arranged side by side on the end surface of the forward inclined plate 501. The inclined nozzles 503 are arranged on one side of the forward inclined plate 501 and the other side of the reverse inclined plate 502, respectively. A traction chain 504 is installed in the middle of one end of the forward inclined plate 501, and a servo motor connected to the traction chain 504 is arranged inside one end of the forward inclined plate 501. When entering the inner flow box 4, the servo motor inside the guide frame 5 drives the traction chain 504 to rotate up and down along a specified trajectory along one end of the forward inclined plate 501 through components such as transmission rollers. During the rotation and movement, the traction chain 504 contacts the medium entering the inner flow box 4, intercepts and filters some impurities in the medium, and is pulled and transported to the impurity conveying frame 6 as the traction chain 504 continues to rotate from bottom to top, and is used in conjunction with the electric cutter 611 and the scraper 612 on the inner wall of the bracket 601;

[0047] The medium entering the inner flow box 4 is affected by the V-shaped structure at one end of the guide frame 5, which causes the medium to flow to both sides. The oblique nozzle 503 is connected to the air pump 302 through a pipeline. When the medium passes through the oblique nozzle 503 area outside the forward inclined plate 501 or the reverse inclined plate 502, the oblique nozzle 503 continuously sprays high-pressure airflow to form an aeration push structure in the medium, and cooperates with the guide plate to change the chamber structure at the bottom of one end of the inner flow box 4 in a segmented manner, so as to cause the medium to be refined and flowed and fully contact with the rotating forward traction belt 402 and the reverse traction belt 404, and the hair and fiber fabrics in the medium are more likely to contact the W-shaped grid 403;

[0048] A bracket 601 is provided at the top of one end of the impurity conveying frame 6, and a conveyor belt 602 connected to the bottom of the suction inclined plate 605 is provided at the bottom of the bracket 601. An electric cutter 611 is provided on the inner wall of the top of one end of the bracket 601 close to the conveyor belt 602, and a scraper 612 is provided below the electric cutter 611. Multiple groups of suction inclined plates 605 are arranged in a V shape along both sides of the conveyor belt 602, and storage bins 603 are provided in depressions on the tops of both sides of the suction inclined plates 605. The electric cutter The running speed of 611 matches the rotation speed of the traction chain 504, and the electric cutter 611 makes a uniform cross-cutting motion along the connecting gap of the outer wall of the traction chain 504, so that the impurities such as hair and fiber fabrics of the hooks are intercepted and cut off from the outside of the traction chain 504, and when the traction chain 504 passes through the scraper 612 at a uniform speed, the scraper 612 is adapted to the shape of the outer wall of the traction chain 504, so that the scattered hooks and fiber fabrics are intercepted and directed to the conveyor belt 602;

[0049] A return water trough 604 connecting the conveyor belt 602 and the suction ramp 605 is provided at the bottom of the impurity conveying rack 6, a cleaning nozzle 606 facing the conveyor belt 602 is provided at the top of the suction ramp 605, a sliding cover 607 is slidably provided at the side of the top of the storage bin 603, an electric guide rail 608 is embedded in the bottom wall of the storage bin 603, a rotary cylinder connected to a telescopic mechanical arm 609 is provided at the top of the electric guide rail 608, and a clamp 610 is provided at the top of the telescopic mechanical arm 609;

[0050] When the W-shaped grid 403 moves the intercepted hair and fiber fabrics to the impurity conveying rack 6, the W-shaped grid 403 is pulled and moved to gradually turn over toward the impurity conveying rack 6. The air suction inclined plate 605 and the impurity cleaning nozzle 606 are provided with pipelines connected to the air pump 302. The air suction inclined plate 605 intermittently draws air above the impurity conveying rack 6 to form a negative pressure environment, and guides the hair and fiber fabrics with loose buckles on the W-shaped grid 403 to fall onto the air suction inclined plate 605. The impurity cleaning nozzle 606 guides the air flow to spray from top to bottom along the surface of the air suction inclined plate 605, and sprays intermittently and offset from the air suction inclined plate 605, so as to cause the hair, fiber fabrics and other impurities that fall on the surface of the air suction inclined plate 605 to slide and fall onto the conveyor belt 602, and are pulled out by the conveyor belt 602.

[0051] Air intake grilles 301 are arranged on the outer walls on both sides of the top cover 3, and air pumps 302 are arranged side by side on the sides of the air intake grilles 301. A high-pressure nozzle 303 inserted into the inner flow box 4 and facing the impurity conveying rack 6 is arranged at the bottom of the air pump 302. A regulating valve 304 is arranged at the pipe connection between the air pump 302 and the high-pressure nozzle 303. The air pump 302 draws external air through the air intake grilles 301. A water-gas separator connected to the suction inclined plate 605 is arranged on the side of the air pump 302. The air pump 302 pipes the drawn air into the high-pressure nozzle 303. The bottom of the high-pressure nozzle 303 is inserted into the upper spray cavity 405 and intermittently sprays high-pressure airflow to the W-shaped grid 403, so as to cause impurities such as hair and fiber fabrics on the W-shaped grid 403 to fall off. The regulating valve 304 is connected to the inclined nozzle 503 and the impurity cleaning nozzle 606 through a pipeline.

[0052] In combination with Example 1 and Example 2, it is possible to analyze the proportion of simultaneous external discharge of impurities and media after filtration, thereby determining whether there is blockage inside the internal flow inlet device, control the operation of the telescopic mechanical arm 609 and related components, and purposefully clamp and remove stubborn impurities attached to the W-shaped grid 403. It is also possible to change the layout of the inner cavity space of the inner flow box 4, and combine the aeration structure to achieve diversion of the medium to finely contact the W-shaped grid 403, which helps to increase the probability of intercepting impurities such as hair and fiber fabrics.

[0053] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A W-shaped inner air inlet grille, comprising an air inlet frame (1), characterized in that: An inner flow box (4) is arranged on the inner wall of the inlet frame (1), a control panel (2) is arranged on the outer wall of one side of the inner flow box (4), a forward traction belt (402) and a reverse traction belt (404) are arranged on the inner wall of the inner flow box (4), a guide frame (5) is arranged at the bottom of the inner circle of the forward traction belt (402), a plurality of groups of oblique nozzles (503) are arranged on the side wall of the guide frame (5), and an impurity conveying frame (6) is arranged above the guide frame (5); Suction inclined plates (605) are symmetrically arranged on the inner walls on both sides of the top of the impurity conveying rack (6), a telescopic mechanical arm (609) is arranged above the suction inclined plates (605), and an electric guide rail (608) connected to the frame bodies on both sides of the impurity conveying rack (6) is arranged at the bottom of the telescopic mechanical arm (609), and a top cover (3) close to the impurity conveying rack (6) is arranged on the top of the inner flow box (4).

2. A W-shaped inner air inlet grille according to claim 1, characterized in that: A bottom frame (102) is arranged at the bottom of the inner wall of the inlet frame (1), an outlet frame (101) standing upright side by side with the inlet frame (1) is arranged at the other end of the bottom frame (102), an inlet sealing valve (103) is arranged at the middle of one end of the inlet frame (1), an outlet sealing valve (105) is arranged at the bottom of the other end of the outlet frame (101), and a slag discharge valve (104) is arranged at the top of the outlet sealing valve (105).

3. A W-shaped inner air inlet grille according to claim 1, characterized in that: A plurality of transmission frames (401) are arranged on the inner wall of the inner flow box (4); a driving motor (406) connected to the transmission frame (401) is arranged at the bottom of one side of the inner flow box (4); a chain connected to a forward traction belt (402) and a reverse traction belt (404) is arranged on the inner wall of the transmission frame (401); a plurality of W-shaped grid frames (403) are arranged on the inner circle walls of the forward traction belt (402) and the reverse traction belt (404); and an upper spray chamber (405) is arranged in a recessed manner on the inner wall of the top of the inner flow box (4).

4. The W-shaped inner air inlet grille according to claim 1, characterized in that: A forward inclined plate (501) located inside the forward traction belt (402) is arranged at one end of the guide frame (5); a reverse inclined plate (502) located inside the reverse traction belt (404) is arranged side by side on the end surface of the forward inclined plate (501); the inclined nozzles (503) are arranged on one side of the forward inclined plate (501) and on the other side of the reverse inclined plate (502); a traction chain (504) is installed in the middle of one end of the forward inclined plate (501); and a servo motor connected to the traction chain (504) is arranged inside one end of the forward inclined plate (501).

5. The W-shaped inner air inlet grille according to claim 1, characterized in that: A bracket (601) is arranged at the top of one end of the impurity conveying frame (6), a conveyor belt (602) connected to the bottom of the suction inclined plate (605) is arranged at the bottom of the bracket (601), an electric cutter (611) is arranged on the inner wall of the top of one end of the bracket (601) close to the conveyor belt (602), and a scraper (612) is arranged below the electric cutter (611), a plurality of groups of the suction inclined plates (605) are arranged in a V-shape along both sides of the conveyor belt (602), and storage bins (603) are arranged in depressions on the tops of both sides of the suction inclined plates (605).

6. A W-shaped inner air inlet grille according to claim 5, characterized in that: A return water trough (604) connecting the conveyor belt (602) and the suction ramp (605) is provided through the bottom of the impurity conveying frame (6), a debris removal nozzle (606) facing the conveyor belt (602) is provided on the top of the suction ramp (605), a sliding cover (607) is slidably provided on the side of the top of the storage bin (603), the electric guide rail (608) is embedded in the bottom wall of the storage bin (603), a rotary cylinder connected to the telescopic mechanical arm (609) is provided on the top of the electric guide rail (608), and a clamp (610) is provided on the top of the telescopic mechanical arm (609).

7. The W-shaped inner air inlet grille according to claim 1, characterized in that: Air intake grilles (301) are arranged on the outer walls of both sides of the top cover (3), air pumps (302) are arranged side by side on the sides of the air intake grilles (301), a high-pressure nozzle (303) inserted into the inner flow box (4) and facing the impurity conveying rack (6) is arranged at the bottom of the air pump (302), and a regulating valve (304) is arranged at the pipe connection between the air pump (302) and the high-pressure nozzle (303).

8. A control system for a W-shaped inner air intake grille, used for the W-shaped inner air intake grille according to any one of claims 1 to 7, characterized in that: The control panel (2) is internally provided with a processor, a data acquisition module, a joint self-checking module and a signal execution module; The data acquisition module is used to collect the impurity percentage fluctuation value HZz of the medium passing through the inner flow box (4) and the filter residue conveying value LZz transported outward on the impurity conveying belt (6) during the use of the inner flow filter device, and send the impurity percentage fluctuation value HZz and the filter residue conveying value LZz to the joint self-checking module via the processor; After receiving the impurity ratio fluctuation value HZz and the filter residue delivery value LZz, the data analysis module immediately analyzes the filter plugging risk of the internal inlet filter device. The specific analysis process is as follows: the impurity ratio fluctuation value HZz and the filter residue delivery value LZz of the internal inlet filter device within the time threshold are obtained, the filter plugging risk coefficient LSi is obtained by the formula, and the preset filter plugging risk coefficient YSi stored and entered is retrieved from the processor for comparison and analysis with the filter plugging risk coefficient LSi; if the filter plugging risk coefficient LSi ≥ the preset filter plugging risk coefficient YSi, it is determined that there is an abnormal blockage risk in the use of the internal inlet filter within the time threshold, and a cleaning signal is generated. The generated signal is sent to the signal execution module through the processor. After receiving the cleaning signal, the signal execution module immediately drives the electric guide rail (608) to work; if the filter plugging risk coefficient LSi < the preset filter plugging risk coefficient YSi, no signal is generated.

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