A plugging-removing type filtering device and detection method

Abstract

The present invention relates to the technical field of filtering devices, and specifically discloses a clog-removing type filtering device and a detection method; the filtering device includes a filtering pipeline, a clog-removing component and a detection component; the clog-removing component is used for performing clog-removing operations on the filtering pipeline, and the detection component is used for real-time monitoring of the pressure, working duration and liquid flow state of the filtering pipeline. The filter screen is covered by an ultrasonic clog-removing unit to remove the filter residues on the filter screen by the kinetic energy generated by the bubble rupture. The detection method includes: after the filtering device starts operating, the detection component detects the working information of the filtering pipeline; matching the filtering operation information with a preset clog-removing threshold, if the matching is successful, the clog-removing operation is started; if the matching fails, the detection operation is continued. Through multiple monitoring means, it is ensured that the system still operates stably in the case of partial component failure, avoiding system shutdown caused by the failure of a single detection component, and effectively improving the efficiency of the clog-removing operation.

Description

Technical Field

[0001] The present invention relates to the technical field of filtration devices, and particularly to a plug - removing type filtration device and a detection method. Background Art

[0002] In current natural gas purification plants, wet desulfurization devices, wet dehydration devices, and tail gas treatment devices generally use the chemical solvent absorption method to purify process gas. During this process, the solution circulation system will inevitably be affected by various factors, resulting in solution contamination. Specifically, due to the long - term use of pipelines, they will be subject to erosion and corrosion, activated carbon particles may be pulverized, and at the same time, upstream raw gas may carry solid particles during transportation. These factors will all affect the purity of the solution. As the degree of solution contamination increases, more foam will be generated in the solution, and the increasing foaming trend will seriously affect the stable operation of the purification / filtration device. To ensure that the purification / filtration device can work continuously and stably, effective measures must be taken to reduce solution contamination, thereby reducing the foaming trend and ensuring the smooth progress of the entire purification / filtration process. In the actual application process, especially in the operation of large - scale filtration plants, the work of manually replacing or cleaning the filter screen is extremely heavy and time - consuming. This process not only requires a large amount of labor input, but also when performing these operations, the filtration system often needs to be temporarily stopped, resulting in a significant decrease in filtration efficiency. This inefficient working method not only wastes valuable labor resources, but also has a negative impact on the production efficiency and economic benefits of the entire filtration plant.

[0003] In the patent "Filter Assembly and Detection Method for Filter Screen Clogging" (publication number: CN111111342B, hereinafter referred to as the prior art 1), a method for detecting a dirty filter screen is disclosed. The filter assembly in the prior art 1 includes a filter screen, an induced - draft fan, and a current sensor. The current sensor is used to detect the current of the induced - draft fan to determine whether the filter screen needs to be cleaned. The filter screen has a first end face and a second end face. The first end face is opposite to the induced - draft fan, and the second end face is opposite to the air inlet of the air duct. In addition, the filter assembly also includes a first pressure sensor and a flow sensor. The method for detecting the clogging of the filter screen of the filter assembly includes setting a preset current value of the induced - draft fan, detecting the current of the induced - draft fan, comparing the detected current value with the preset current value set in the control system, and when the detected current value is greater than or equal to the preset current value, cleaning the filter screen.

[0004] Although the existing technology 1 has the ability to identify whether the filter component is clogged through specific detection components and detection methods, however, this technology cannot perform effective blockage removal or blockage dredging operations based on the further detected degree of blockage. In addition, in the existing technology 1, the detection method is relatively single. When it is applied in a situation with poor environmental conditions, the detection component may malfunction due to environmental factors, resulting in the loss of its detection function. Summary of the Invention

[0005] In view of this, the embodiments of the present invention provide a blockage removal type filtering device and a detection method, which are used to solve the problem that the existing technology cannot perform an automatic blockage removal or blockage dredging operation according to the blockage phenomenon detected by the detection component.

[0006] In a first aspect, the embodiments of the present invention provide a blockage removal type filtering device, including a filtering pipeline, a blockage removal component and a detection component arranged on the filtering pipeline; the blockage removal component is used to perform blockage removal operations on the filtering pipeline, and the detection component is used to detect the pressure, working duration and liquid flow state of the filtering pipeline; the inside of the filtering pipeline is hollow to form a filtering cavity; a filter screen is arranged in the filtering cavity in the same direction as the flow direction of the filtering pipeline; a first pipeline and a second pipeline communicated with the filtering pipeline are respectively arranged on the filtering pipeline; the blockage removal component includes an ultrasonic blockage removal unit, and the ultrasonic blockage removal unit is arranged on the filtering pipeline and covers the filter screen in the direction where the filter screen is arranged in the filtering pipeline; when the ultrasonic blockage removal unit works, bubbles are generated in the liquid in the filtering cavity, and the kinetic energy generated by the bursting of the bubbles causes the filter residues attached to the filter screen to fall off.

[0007] The ultrasonic blockage removal unit includes a control unit and a plurality of ultrasonic transmitters; the ultrasonic transmitters are connected to the control unit through lines; the plurality of ultrasonic transmitters are arranged on the filtering pipeline at a preset angle and interval.

[0008] The blockage removal component further includes an adsorption blockage removal unit; the adsorption blockage removal unit sends a conduit into the filtering cavity through a coupling; a plurality of suction nozzles are arranged on the conduit at a preset angle and interval.

[0009] The coupling is connected to a driving device arranged outside the filtering pipeline. When the adsorption blockage removal unit operates, the conduit makes a reciprocating linear motion in the filtering cavity, and the filter residues are adsorbed into a filter residue cavity arranged in the filtering pipeline through the suction nozzles.

[0010] The blockage removal component further includes a compressed air blockage removal unit; the compressed air blockage removal unit includes an air compressor and a compressed air pipe used to communicate with the filtering cavity.

[0011] A third pipeline is also provided on the filtering pipeline; a control box is provided on the third pipeline; a control circuit is provided in the control box; the ultrasonic blockage removal unit, the adsorption blockage removal unit, and the compressed air blockage removal unit are all connected to the control circuit and perform blockage removal operations according to the control of the control circuit.

[0012] Second, a detection method is provided, including: the detection component detects the filtering operation information of the filtering pipeline after the filtering device starts operating;

[0013] The filtering operation information includes pipeline pressure information and / or pipeline working time information and / or liquid flow information;

[0014] Match the detected filtering operation information with the corresponding blockage removal threshold;

[0015] If the filtering operation information matches the corresponding blockage removal threshold successfully, perform a blockage removal operation on the filtering pipeline through the blockage removal component;

[0016] If the filtering operation information does not match the corresponding blockage removal threshold, the detection component continues to detect the filtering operation information;

[0017] When the blockage removal component performs a blockage removal operation on the filtering pipeline, the detection component stops the detection operation;

[0018] After the blockage removal operation is completed, the detection component resumes the detection operation.

[0019] Preferably, the detection component detects the filtering operation information of the filtering pipeline after the filtering device starts operating, including at least one of the following methods:

[0020] After the filtering device starts operating, the detection component uses a flow monitor to detect the flow difference between two adjacent moments in the second pipeline;

[0021] After the filtering device starts operating, the detection component uses a flow monitor to detect the flow difference between the first pipeline and the second pipeline;

[0022] After the filtering device starts operating, the detection component uses a pressure sensor to detect the pressure difference between the first pipeline and the second pipeline;

[0023] After the filtering device starts operating, the detection component uses a timer to detect the working duration of the filtering pipeline.

[0024] Preferably, the detection component uses a flow monitor to detect the flow difference between two adjacent moments in the second pipeline after the filtering device starts operating, including:

[0025] Using the flow monitor to detect the second pipeline at Flow rate at a moment ;

[0026] Use the flow rate monitor to detect the flow rate of the second pipeline at Flow rate at a moment ;

[0027] Compare the flow rate difference between the two moments with the flow rate difference plugging threshold corresponding to the flow rate difference ;

[0028] If the flow rate difference is greater than or equal to the flow rate difference plugging threshold then the matching is successful.

[0029] Preferably, after the filtering device starts operating, the detection component uses a pressure sensor to detect the pressure difference between the first pipeline and the second pipeline, including:

[0030] Use the pressure sensor to detect the pressure at the pipe orifice of the first pipeline ;

[0031] Use the pressure sensor to detect the pressure at the pipe orifice of the second pipeline ;

[0032] Compare the pressure difference between the first pipeline and the second pipeline with the pressure difference plugging threshold corresponding to the pressure difference ;

[0033] If the pressure difference between the first pipeline and the second pipeline is greater than the pressure difference plugging threshold then the matching is successful.

[0034] Preferably, after the filtering device starts operating, the detection component uses a timer to detect the working duration of the filtering pipeline, including:

[0035] Use the timer to record the moment when the filtering pipeline starts operating value;

[0036] Add the value of the start operation moment to the standard operation duration of the filter screen ;

[0037] Add the start operation moment to the standard operation duration of the filter screen and compare the value with the working duration plugging threshold corresponding to the working duration ;

[0038] If the time when the operation starts plus the standard operation duration of the filter screen and the resulting value is greater than or equal to the blockage removal threshold of the working duration then the match is successful;

[0039] Among them, the standard operation duration is updated through the blockage coefficient after each blockage removal operation on each pair of the filter pipes When the time when the operation starts plus the updated standard operation duration of the filter screen and the resulting value is less than the minimum standard working duration then, blockage removal operations are carried out at intervals according to the minimum standard working duration

[0040] A blockage removal type filter device provided by the present invention has the following beneficial effects:

[0041] In the filter device of the present invention, the filter screen is cleaned by the ultrasonic blockage removal unit, and the filter residues attached to the filter screen can be effectively removed. This method uses the kinetic energy generated by the rupture of bubbles to clean the filter screen without direct contact, reducing mechanical wear and improving the efficiency of the blockage removal operation to complete the automatic blockage removal operation. The device also monitors the state of the filtering operation from different angles by setting multiple detection components (such as flow monitors, pressure sensors, and timers, etc.). Even if some detection components are damaged due to environmental factors (such as high humidity, low temperature), other components can still continue to work, thus avoiding system downtime caused by single-point failures. The detection components can monitor the pressure, working duration, and flow state of the filter pipes in real time, and judge whether blockage removal is required by comparing with the preset blockage removal threshold. This automated work process reduces manual intervention and improves the accuracy and efficiency of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings, and these are all within the protection scope of the present invention.

[0043] Figure 1 is a schematic diagram of the internal structure of a blockage removal type filter device;

[0044] Figure 2 is a schematic diagram of the external structure of a blockage removal type filter device;

[0045] Figure 3 is a schematic diagram of the structure of the detection components of a blockage removal type filter device; ​

[0046] Figure 4 It is a flowchart of a detection method;

[0047] Parts and components and their numbers in the figure:

[0048] 100 - Filter device;

[0049] 110 - Filter pipeline, 111 - Filter chamber, 112 - Filter screen, 113 - First pipeline, 114 - Second pipeline, 115 - Filter residue chamber, 116 - Third pipeline, 117 - Control box;

[0050] 121 - Ultrasonic blockage removal unit, 122 - Control unit, 123 - Ultrasonic transmitter;

[0051] 131 - Driving device, 132 - Adsorption blockage removal unit, 133 - Coupling, 134 - Conduit, 135 - Suction nozzle;

[0052] 150 - Detection component, 151 - Flow monitor, 152 - Pressure sensor;

[0053] 161 - Slag discharge pipeline, 162 - Slag discharge pump;

[0054] 171 - First limiting part, 172 - Second limiting part, 173 - Block; Specific implementation method

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. Moreover, the terms "include", "comprise", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article, or device. Without further limitation, the elements defined by the statement "including..." do not exclude the presence of additional identical elements in the process, method, article, or device including the said elements. If there is no conflict, the embodiments of the present invention and the various features in the embodiments may be combined with each other, and all are within the protection scope of the present invention.

[0056] Embodiment 1

[0057] Please refer to Figure 1 , the embodiments of the present invention provide a plugging-removing type filtering device. Since in the process of using the existing filtering device, when its service life reaches the preset duration or a clogging phenomenon occurs, it is necessary to replace the filter element (filter screen) to ensure its expected filtering effect. During the process of replacing the filter element, it is necessary to open the filtering device for operation, and at this time, the filtering medium (filter residue) may emit toxic and harmful gases, which not only increases the operation risk, but also may pose a threat to the health of the operators. In addition, it is necessary to replace the filter element every time, which not only makes the operation process cumbersome, but also reduces the filtering efficiency of the filtering device every time the filter element is replaced, thus affecting the overall working efficiency. Therefore, frequently replacing the filter element not only increases the maintenance cost, but also may affect the stable operation of the equipment.

[0058] Therefore, in this embodiment, a clog-removing type of filtering device is provided. When the filtering device 100 is in use, due to poor filtering quality or clogging of the filter screen 112, effective clog-removing measures can be taken to clean the filter residue accumulated on the surface of the filter screen 112. Doing so can not only avoid frequent replacement of the filter screen 112, reduce the maintenance workload, but also significantly extend the service life of the filter screen 112. In this way, the cost of replacing the filter screen 112 can be saved, the operating efficiency of the equipment can be improved, and thus the overall maintenance and operation costs can be reduced.

[0059] Please refer to Figure 1 , a clog-removing type of filtering device provided in this embodiment includes a filtering pipe 110 for liquid passage, and a clog-removing component and a detection component 150 installed on the filtering pipe 110. The main function of the clog-removing component is to perform effective clog-removing operations on the filtering pipe 110 to ensure the filtering effect of the filter screen 112. When the filtering pipe 110 is clogged, the clog-removing component can be quickly activated, and through a series of clog-removing means, the filter residue is removed, so as to restore the normal working state of the filter screen 112.

[0060] Please refer to Figure 2 and Figure 3 , the detection component 150 is responsible for real-time monitoring of the working conditions of the filtering pipe 110, including pressure, working duration, and liquid flow status. Through the pressure sensor 152, the detection component 150 can real-time monitor the pressure changes in the filtering pipe 110. Once abnormal pressure is detected, a signal can be sent to remind or control the clog-removing operation on the filtering pipe 110. At the same time, the detection component 150 can also record the working duration of the filtering pipe 110 for regular maintenance or clog-removing operations on the filter screen 112. In addition, the detection component 150 also has a liquid flow monitoring function, and can real-time monitor the liquid flow status through the flow monitor 151 to ensure that the filtering device 100 operates in the best working state.

[0061] Inside the filtering pipeline 110, a hollow structure is formed, and this hollow part is the filtering chamber 111. Inside this filtering chamber 111, along the flow direction of the filtering pipeline 110, a filter screen 112 is arranged. The function of this filter screen 112 is to intercept and filter out impurities and particles in the liquid flowing through the pipeline, ensuring that the outflowing liquid or gas reaches the required cleanliness. In addition, on the structure of the filtering pipeline 110, two pipelines are respectively provided, and these two pipelines are respectively communicated with the filtering pipeline 110. These two pipelines are called the first pipeline 113 and the second pipeline 114, and both the first pipeline 113 and the second pipeline 114 can be used as the liquid inlet pipeline and / or the liquid outlet pipeline; in this embodiment, the first pipeline 113 is used as the liquid inlet pipeline, and the second pipeline 114 is used as the liquid outlet pipeline. During filtration, the liquid to be filtered enters the filtering chamber 111 through the first pipeline 113 for filtration, the filtered liquid is discharged through the second pipeline 114, and the filter residue remains on the filter screen 112. When there is a large amount of filter residue remaining, the blockage removal assembly is triggered to perform a blockage removal operation on the filter screen 112, clean the filter residue on the filter screen 112, and enable the filter screen 112 to resume its normal operating state.

[0062] Please refer to Figure 2 , in this embodiment, the blockage removal assembly includes an ultrasonic blockage removal unit 121. This ultrasonic blockage removal unit 121 is installed at a specific position on the filtering pipeline 110, and its position can exactly cover the filter screen 112 arranged inside the filtering pipeline 110 in all directions. When the ultrasonic blockage removal unit 121 starts to work, it emits ultrasonic signals into the liquid in the filtering chamber 111. These ultrasonic signals propagate in the liquid in the filtering chamber 111, causing a large number of bubbles to be generated inside the liquid. With the continuous action of the ultrasonic waves, these bubbles will increase and finally burst. When the bubbles burst, a powerful kinetic energy will be generated, and this kinetic energy can effectively shake off the filter residue attached to the surface of the filter screen 112. In this way, the ultrasonic blockage removal unit 121 can effectively make the blockage (filter residue) on the filter screen 112 fall off, thereby maintaining the efficient operation of the filtering system.

[0063] The ultrasonic blockage removal unit 121 is composed of a control unit 122 and multiple ultrasonic transmitters 123. These ultrasonic transmitters 123 are connected to the control unit 122 through lines to ensure the accurate transmission of signals. The multiple ultrasonic transmitters 123 are evenly distributed on the surface of the filter pipe 110 at preset angles and intervals. When the control unit 122 receives a specific signal, it will immediately start and command these ultrasonic transmitters 123 to start the blockage removal operation. With this layout, the ultrasonic transmitters 123 can cover most or all of the area of the filter screen 112 on the filter pipe 110. When the ultrasonic transmitters 123 start to work, they will emit high-frequency vibrations, which can effectively shake off the filter residues attached to the filter screen 112. As the filter residues fall off, the filter holes on the filter screen 112 are reopened, ensuring that the filtering process can proceed smoothly and improving the filtering efficiency. This design not only improves the reliability of the filtering system but also extends the service life of the filter screen 112, ensuring the efficient and stable operation of the entire filtering system.

[0064] During use, the nozzles of the first pipe 113 and the second pipe 114 are closed, and a part of the solution is retained in the filtering chamber 111. The control unit 122 is used to start the multiple ultrasonic transmitters 123, so that the vibrations generated by the ultrasonic transmitters 123 propagate in the solution and cause bubbles to form in the solution. When the bubbles continuously generate and burst, a relatively large amount of energy is generated, causing the filter residues on the filter screen 112 to be shaken off, reopening the filter holes of the filter screen 112, and enabling normal filtering operations.

[0065] Embodiment 2

[0066] Please refer to Figure 1 , the embodiment of the present invention provides a filtering device with a blockage removal function. In Embodiment 1, an ultrasonic blockage removal component is provided; however, this ultrasonic blockage removal component can only shake off the filter residues from the filter screen 112 through ultrasonic vibrations, but cannot completely remove the filter residues. Over time, the filter residues will gradually accumulate and eventually block the filter holes on the filter screen 112, resulting in a significant reduction in the filtering effect. Therefore, in this embodiment, an adsorption blockage removal unit 132 is also provided, whose main function is to effectively adsorb and discharge the filter residues from the filtering chamber 111.

[0067] Specifically, the blockage removal assembly further includes an adsorption blockage removal unit 132. This adsorption blockage removal unit 132 is connected to a conduit 134 through a coupling shaft 133 and sends the conduit 134 into the filtration chamber 111. To ensure the adsorption effect, a number of suction nozzles 135 are provided on the conduit 134, and these suction nozzles 135 are arranged at a preset angle and interval so as to more comprehensively cover each area within the filtration chamber 111. The coupling shaft 133 is connected to a driving device 131 provided outside the filtration pipe 110, such that when the adsorption blockage removal unit 132 is operating, the conduit 134 can perform a reciprocating linear motion within the filtration chamber 111. In this way, the suction nozzles 135 can adsorb the filter residue into a filter residue chamber 115 provided within the filtration pipe 110.

[0068] To further ensure the stability and reliability of the adsorption blockage removal unit 132, a first limiting member 171 and a second limiting member 172 for restricting the displacement path length of the coupling shaft 133 or the suction nozzles 135 are provided within the filter residue chamber 115. The coupling shaft 133 is provided with locking blocks 173, and when the coupling shaft 133 undergoes displacement, these locking blocks 173 cooperate with the first limiting member 171 and the second limiting member 172 to ensure that the coupling shaft 133 cannot exceed the preset displacement path length.

[0069] Furthermore, to better discharge the filter residue from the filter residue chamber 115, a slag discharge pipe 161 is also provided. Through the slag discharge pipe 161, a slag discharge pump 162 is provided, and the slag discharge pump 162 is used to discharge the filter residue within the filter residue chamber 115, thereby preventing excessive accumulation of filter residue within the filter residue chamber 115 and affecting the filtration effect.

[0070] During actual use, simply start the driving device 131, and the driving device 131 will drive the coupling shaft 133 to rotate while performing a reciprocating linear motion. In this way, the suction nozzles 135 can effectively adsorb the filter residue on the filter screen 112 or within the filtration chamber 111, and through the conduit 134 and the coupling shaft 133, the filter residue is adsorbed into the filter residue chamber 115. Through the coordinated use of the slag discharge pump 162, it can be ensured that the filter residue is discharged in a timely manner, thereby maintaining the efficient operation of the filtration system.

[0071] Embodiment 3

[0072] Please refer to Figure 1, embodiments of the present invention provide a plug - removing type filtering device. In Embodiment 1, a design scheme of an ultrasonic plug - removing component is introduced; this ultrasonic plug - removing component has the function of vibrating and dropping the filter residue attached to the filter screen 112 through ultrasonic vibration. However, when the filter residue has been attached to the filter screen 112 for too long, the energy generated only by the bubbles may not be able to effectively vibrate and drop the filter residue. Therefore, in this embodiment, an improved scheme is proposed, that is, a plug - removing component of a compressed - air plug - removing unit is used to blow - purge the filter residue on the filter screen 112. To better cooperate with the work of the compressed - air plug - removing unit, in this embodiment, the filter screen 112 is set as a rotatable structure.

[0073] In this embodiment, bearing seats are provided at least at both ends of the filter screen 112 to ensure that the filter screen 112 can rotate smoothly. In addition, bearing seats can also be provided in the middle part of the filter screen 112 as needed; these bearing seats are installed inside the filter - residue pipeline, so that the filter screen 112 can rotate flexibly. In this way, every part of the filter screen 112 can be evenly purged, thereby improving the plug - removing efficiency.

[0074] In this embodiment, the compressed - air plug - removing unit includes an air compressor and a compressed - air pipe for communicating with the filtering cavity 111. To further optimize the plug - removing effect, a third pipe 116 is also provided on the filtering pipeline 110.

[0075] During actual use, compressed air is introduced into the compressed - air pipe through the third pipe 116, so that the compressed air can directly blow - purge the filter screen 112. Since the blowing force of the compressed air is relatively large, the filter screen 112 can rotate clockwise or counterclockwise based on the bearing seats, so that all parts of the filter screen 112 can be subjected to the blow - purge plug - removing operation by the compressed - air plug - removing unit. When the filter residue is blown onto the filtering cavity 111 or the filter screen 112, the adsorption and plug - removing device mentioned in Embodiment 2 is used to adsorb and discharge the filter residue, thereby completing the entire plug - removing operation. Through this comprehensive plug - removing scheme, the cleaning efficiency of the filter screen 112 can be significantly improved, ensuring the stable operation of the filtering system.

[0076] In Embodiments 1 to 3, a control box 117 is installed on the third pipe 116. The control box 117 is internally equipped with a control circuit for coordinating and managing the operation of the entire plug - removing system. Specifically, the ultrasonic plug - removing unit 121, the adsorption plug - removing unit 132, and the compressed - air plug - removing unit are all connected to this control circuit. Through the control instructions issued by the control circuit, each plug - removing unit can work in an orderly and coordinated manner, thereby efficiently completing the plug - removing operation.

[0077] When the detection component 150 (such as a flowmeter or a pressure sensor) detects that the clogging degree of the filter screen 112 exceeds the set threshold, the ultrasonic clogging removal unit 121 is activated. First, the ultrasonic clogging removal unit 121 uses high-frequency vibration to loosen and detach the filter residue on the filter screen 112, and the detached filter residue falls into the internal space of the filter screen 112. Generally, the ultrasonic clogging removal unit 121 cannot completely separate the filter residue from the filter screen, and there is still residual filter residue that has not completely fallen off. Then, by starting the compressed air clogging removal unit, the compressed air is sprayed along the surface of the filter screen 112 to further purge the residual filter residue. During the purging process, the residual filter residue is pushed away from the filter screen by the air flow and enters the action area of the adsorption unit. Then, the filter residue is sucked out through the suction nozzle 135 of the adsorption clogging removal unit 132 to complete the clogging removal operation of the filtering device 100.

[0078] Embodiment 4

[0079] Please refer to Figure 4 , the embodiment of the present invention provides a detection method; in order to ensure that the filtering device 100 described in Embodiments 1 to 3 can operate normally, a set of detection mechanisms are set in this embodiment for real-time detection of whether there is a clogging phenomenon inside the filtering device 100 and clogging removal operations are required. When the monitoring system detects that there is a clogging situation inside the device and cleaning is required, the system will automatically issue corresponding instructions. These instructions are transmitted to each relevant unit through the control circuit to ensure that each unit can perform the clogging removal operation orderly according to the predetermined order and procedure. In this way, the operating efficiency of the entire filtering device 100 is maintained, ensuring the stability and reliability of the filtering effect.

[0080] The clogging removal detection method in this embodiment includes:

[0081] The detection component 150 detects the filtering operation information of the filtering pipeline 110 after the filtering device 100 starts operating.

[0082] In this embodiment, the detection component 150 includes a flow detector, a pressure sensor 152, and a timer that have been mentioned in Embodiment 1. Specifically, the flow detector is further refined into two parts, namely, a first flow detector and a second flow detector. Similarly, the pressure sensor 152 is also divided into two parts, namely, a first pressure sensor 152 and a second pressure sensor 152. To ensure comprehensive monitoring of the entire system, these detection components 150 are respectively installed at the pipe orifices of the first pipe 113 and the second pipe 114. Specifically, the pipe orifice of the first pipe 113 is equipped with a first flow detector and a first pressure sensor 152, while the pipe orifice of the second pipe 114 is equipped with a second flow detector and a second pressure sensor 152. Through these detection components 150, the pressure and flow conditions of the pipe orifices of the first pipe 113 and the second pipe 114 can be respectively detected in detail.

[0083] According to the preset detection component 150, the filtration operation information at least covers a plurality of key parameters, including but not limited to pipeline pressure information, pipeline working time information, and liquid flow information. Specifically, the pipeline pressure information is obtained by the collaborative work of the first pressure sensor 152 and the second pressure sensor 152, and these two sensors are respectively responsible for monitoring and recording the pressure changes of the first pipe 113 and the second pipe 114. The pipeline working time information is obtained through the timer, which can accurately record the operation duration of the filtration pipeline 110, thus providing an important reference for subsequent maintenance and operation. As for the liquid flow information, it is obtained jointly by the first flow detector and the second flow detector. These two detectors are respectively installed at the pipe orifices of the first pipe 113 and the second pipe 114, and can monitor and record the liquid flow conditions passing through the first pipe 113 and the second pipe 114 in real time, ensuring the efficient operation of the filtration operation. Through the collaborative work of these detection components 150, the real-time state of the filtration operation can be comprehensively grasped, providing strong support for the blockage removal operation.

[0084] Match the detected filtration operation information with the corresponding blockage removal threshold.

[0085] Furthermore, each filtration operation information is equipped with a corresponding blockage removal threshold. This means that whenever the system detects a certain filtration operation information, it will automatically match this information with the corresponding blockage removal threshold through the preset matching rules. In this way, the system can effectively identify and handle blockage problems, ensuring the smooth progress of the entire filtration or blockage removal operation.

[0086] If the filtering operation information matches the corresponding blockage removal threshold successfully, the blockage removal component performs a blockage removal operation on the filtering pipeline 110. If the filtering operation information matches the corresponding blockage removal threshold successfully, the system will perform a blockage removal operation on the filtering pipeline 110 through the blockage removal component. Specifically, the blockage removal component will take corresponding blockage removal measures according to the successfully matched threshold to remove the blockage (filter residue) in the filtering pipeline 110, ensuring the smooth progress of the filtering operation.

[0087] If the filtering operation information fails to match the corresponding blockage removal threshold, the detection component 150 continues to detect the filtering operation information. On the contrary, if the filtering operation information fails to match the corresponding blockage removal threshold, the detection component 150 will continue to monitor and detect the filtering operation information in real time until the filtering operation information matches the corresponding blockage removal threshold successfully.

[0088] When the blockage removal component performs a blockage removal operation on the filtering pipeline 110, the detection component 150 stops the detection operation; during the process of the blockage removal component performing the blockage removal operation on the filtering pipeline 110, the detection component 150 will temporarily stop its detection operation.

[0089] After the blockage removal operation is completed, the detection component 150 resumes the detection operation. When the blockage removal operation is completed and the filtering pipeline 110 re-enters the filtering operation, the detection component 150 will restart and continue to detect the filtering pipeline 110.

[0090] For example, after the detection component 150 starts operating, if a flow rate monitor 151, a pressure sensor 152, and a timer are used to detect the filtering operation information, the detection component 150 will match the detected filtering operation information with at least one corresponding blockage removal threshold through a preset rule. When the parameters of the filtering operation information meet the preset rule, it is regarded as a successful match, which may specifically include one or more of the following methods:

[0091] Method P1:

[0092] After the filtering device 100 starts operating, the detection component 150 uses the flow rate monitor 151 to detect the flow rate difference between two adjacent moments in the second pipeline 114.

[0093] Using the flow rate monitor 151 to detect the flow rate of the second pipeline 114 at moment .

[0094] Using the flow rate monitor 151 to detect the flow rate of the second pipeline 114 at moment .

[0095] The flow rate difference between the two moments The flow rate difference blockage threshold corresponding to the flow rate difference are compared.

[0096] If the flow rate difference is greater than the flow rate difference blockage threshold then the match is successful.

[0097] Since the blockage of the filter screen 112 is a gradual process, the degree of blockage will gradually increase over time. Therefore, at the nozzle of the second pipeline 114, the water outlet flow rate will also slowly decrease accordingly. Specifically, when the second pipeline 114 is at the time point the flow rate at that moment is and at the next adjacent time point the flow rate at that moment Under normal circumstances, the gap between the two will not be too large. To ensure the normal operation of the system, we set a normal flow rate difference blockage threshold . This threshold represents the normal range of the flow rate difference between two adjacent moments. However, when the actually measured flow rate difference exceeds or is equal to this blockage threshold it indicates that the amount of solution discharged through the nozzle of the second pipeline 114 has suddenly decreased too rapidly, generally due to the blockage of the filter screen 112 inside the filter pipeline 110. To restore the normal flow rate difference and ensure the efficient operation of the system, at this time, it is necessary to perform a blockage removal operation inside the filter pipeline 110. Through timely blockage removal operations, the flow rate difference can be restored to the normal value, thereby ensuring the stability and efficiency of the entire system.

[0098] Generally, it can be determined according to the stability of the system and the range of flow rate fluctuations. When the change in the liquid outlet flow rate between two adjacent moments reaches 10% to 15%, it can be considered to perform a blockage removal operation on the filter screen 112. This is because a large decrease in the flow rate usually means that the degree of blockage of the filter screen 112 has significantly affected the fluid flow performance of the system. The two adjacent moments can be taken and other time periods as the time interval.

[0099] In actual operation, it is necessary to monitor the change in the liquid outlet flow rate over a period of time and analyze the fluctuation range under normal operating conditions. If the liquid outlet flow rate fluctuates less during normal operation of the system, a lower threshold (such as 10%) can be adopted; if the fluctuation is large, the threshold can be appropriately increased (such as 15%).

[0100] Therefore, when the between two adjacent moments is only 10% - 15% of Take it as (85% - 90%) , when the actually measured flow difference exceeds or equals this blockage removal threshold (85% - 90%) , it means successful matching, and the filtering pipeline 110 needs to be blocked and removed.

[0101] Method P2:

[0102] After the detection component 150 starts operating the filtering device 100, it uses the pressure sensor 152 to detect the pressure difference between the first pipeline 113 and the second pipeline 114.

[0103] Use the pressure sensor 152 to detect the pressure at the pipe orifice of the first pipeline 113 .

[0104] Use the pressure sensor 152 to detect the pressure at the pipe orifice of the second pipeline 114 .

[0105] Compare the pressure difference between the first pipeline 113 and the second pipeline 114 with the pressure difference blockage removal threshold corresponding to the pressure difference .

[0106] If the pressure difference between the first pipeline 113 and the second pipeline 114 is greater than the pressure difference blockage removal threshold , then the matching is successful.

[0107] Since the filter screen 112 will be gradually blocked during filtration, there will be different pressure values between the pipe orifice of the first pipeline 113 and the pipe orifice of the second pipeline 114. When the blocked area of the filter screen 112 is small, the flow rate of the liquid to be filtered changes little, and the pressure difference between the pipe orifice of the first pipeline 113 and the pipe orifice of the second pipeline 114 remains within a normal range; as filtration progresses over time, the pressure difference between the pipe orifice of the first pipeline 113 and the pipe orifice of the second pipeline 114 gradually increases. When the pressure difference between the pipe orifice of the first pipeline 113 and the pipe orifice of the second pipeline 114 exceeds the normal value, there may be risks such as equipment damage and pipeline rupture.

[0108] Therefore, set the normal value of the pressure difference between the pipe orifice of the first pipeline 113 and the pipe orifice of the second pipeline 114 as . When the pressure difference between the first pipeline 113 and the second pipeline 114 is greater than or equal to the pressure difference blockage removal threshold , then the filtering pipeline 110 needs to be blocked and removed.

[0109] The standard pressure difference between two pipe orifices is obtained through the following formula:

[0110]

[0111] In the formula, is the standard pressure difference between two pipe orifices, with the unit ; is the dynamic viscosity of the fluid flow, with the unit ; is the thickness of the filter screen 112, with the unit ; is the flow rate of the fluid, with the unit ; is the porosity of the filter screen 112 (i.e., the ratio of the filter pore area to the total area of the filter screen 112); is the total area of the filter screen 112, with the unit ; is the permeability coefficient of the material of the filter screen 112, with the unit . The formula for the standard pressure difference between two pipe orifices is based on Darcy's law and the principles of fluid mechanics and is used to describe the flow resistance of a fluid passing through a porous medium. Darcy's law is commonly used to describe filtration and permeation processes. It states that when a liquid flows through a filter layer, the flow resistance (i.e., the pressure difference) is related to the fluid properties, material structure, and flow rate.

[0112] The liquid to be filtered is a solution with filter particulate residues, and the residues are pulverized particles of activated carbon and / or other solid particles. Since the solution to be filtered is wastewater containing particles similar to activated carbon particles, the viscosity can be initially selected within the range of , and then adjusted according to specific working conditions and practical results, and its dynamic viscosity is taken as .

[0113] For the cylindrical filter screen 112 used for particle filtration, the thickness depends on specific application requirements and the properties of the filtered particles. When treating high-concentration suspended particles (such as a solution containing activated carbon particles), the thickness of the filter screen is usually between ; adjusted according to specific working conditions and practical results, the thickness of the filter screen 112 is set to , the total area of the filter screen 112 is set to , the porosity is , so the effective filtration area of the filter pores is ; its filter screen 112 is a PP filter element, that is, a filter element made of polypropylene, and its permeability coefficient is generally . Since the residues filtered in this embodiment are particles, its permeability coefficient takes the larger .

[0114] In this embodiment, the cross-sectional diameter of the filtration pipeline 110 used is When filtering, the flow rate of the fluid is approximately , so the flow rate of the fluid at this time is approximately .

[0115] Substitute into the formula:

[0116]

[0117] Therefore, the standard pressure difference between the two pipe orifices is ; In practical applications, determining when to perform plugging removal operations usually depends on the safety of equipment operation and the requirements for filtration effect. To ensure the normal operation of the equipment and the filtration effect, an additional pressure difference tolerance range is usually set. This range is generally set to of the standard pressure difference . Taking the standard pressure difference as as an example, the pressure difference plugging removal threshold is set to . This means that only when the pressure difference between the two pipe orifices exceeds , will the plugging removal operation be triggered. Of course, this pressure difference tolerance range is not fixed and can be appropriately adjusted and optimized according to the designed pressure resistance performance of the filtration device 100 and actual operation experience.

[0118] Therefore, to ensure the efficient operation, safety performance, and sufficient filtration duration of the filtration device 100, the pressure difference plugging removal threshold is set to . It means that the standard force that can be borne per square centimeter area on the filter screen 112 is . When the force borne per square centimeter area on the filter screen 112 exceeds , it is regarded as exceeding the range that the filter screen 112 can bear, and plugging removal is required to avoid damage to the filter screen 112. That is to say, when the detection component 150 detects that the pressure difference between the first pipe 113 and the second pipe 114 is greater than or equal to the pressure difference plugging removal threshold , it is considered that the conditions for the plugging removal operation are met and regarded as a successful match. At this time, the plugging removal operation will be started to perform plugging removal on the filtration pipe 110 to ensure that the filtration device 100 can continue to operate efficiently and safely. In this way, equipment failures caused by excessive pressure difference can be effectively avoided, and at the same time, the filtration effect can be guaranteed to ensure the stability and reliability of the entire system.

[0119] Method P3:

[0120] After the filtration device 100 starts operating, the detection component 150 uses the flow rate monitor 151 to detect the flow rate difference between the first pipe 113 and the second pipe 114.

[0121] Use the first flow monitor 151 to detect the flow rate of the first pipeline 113 at the moment .

[0122] Use the second flow monitor 151 to detect the flow rate of the second pipeline 114 at the moment .

[0123] Compare the flow difference between the two pipelines at the moment with the flow difference blockage threshold corresponding to the flow difference .

[0124] If the flow difference is greater than or equal to the flow difference blockage threshold , the matching is successful.

[0125] During the filtration process of the filtration device 100, the filtration effect of the filter screen 112 in the initial stage is usually quite excellent, and the filtration speed is relatively fast. At this stage, the difference between the liquid inlet flow rate and the liquid outlet flow rate at the nozzle of the first pipeline 113 is generally not too large, and usually, these two flow rate values are quite close. However, as time goes by, the filter screen 112 gradually gets blocked, resulting in a gradual increase in the difference between the liquid inlet flow rate and the liquid outlet flow rate at the nozzle of the first pipeline 113. As time increases, this flow rate difference becomes more and more obvious. When the flow difference between the liquid inlet flow rate and the liquid outlet flow rate at the nozzle of the first pipeline 113 exceeds a specific flow difference blockage threshold , it indicates that the filter screen 112 has been blocked to a rather serious extent, and at this time, a blockage removal operation is required to restore the normal working state of the filtration device 100.

[0126] According to practical engineering projects and industry standards, through long-term experiments and practical applications, when the flow rate at the liquid outlet end is 15% to 20% of the liquid inlet end, the blockage removal operation can be carried out. This flow rate difference is established as a reliable blockage removal and cleaning timing. For example, in the petrochemical and water treatment fields, there are relevant standards and suggestions to ensure the efficient and economical operation of the filtration system.

[0127] Therefore, take (80% - 85%) , that is, when the actually measured flow difference exceeds or is equal to the blockage threshold (80% - 85%) , the blockage removal operation can be carried out.

[0128] Method P4:

[0129] After the filtering device 100 starts operating, the detection component 150 uses a timer to detect the working duration of the filtering pipeline 110.

[0130] Use the timer to record the moment when the filtering pipeline 110 starts operating value.

[0131] Add the moment when the operation starts value to the standard operation duration of the filter mesh 112 .

[0132] Add the moment when the operation starts to the standard operation duration of the filter mesh 112 and compare the value with the blockage removal threshold corresponding to the working duration .

[0133] If the value after adding the standard operation duration of the filter mesh 112 to the moment when the operation starts is greater than or equal to the blockage removal threshold corresponding to the working duration then the matching is successful.

[0134] Among them, the standard operation duration is updated through the blockage coefficient after each blockage removal operation on the filtering pipeline 110; when the moment when the operation starts plus the updated standard operation duration of the filter mesh 112 value is less than the minimum standard working duration then, the blockage removal operation is performed at intervals according to the minimum standard working duration .

[0135] During the filtering operation, usually, a standard working duration is preset according to factors such as the material of the filter mesh 112, the properties of the filtered solution, and the composition of the filter residue. This standard working duration refers to the time when the filter mesh 112 can maintain high-efficiency filtering performance under ideal conditions. As the working time of the filter mesh 112 accumulates, its filtering effect will gradually decline. When the working duration of the filter mesh 112 approaches this preset standard working duration, the filtering effect will decrease significantly. At this time, it is necessary to perform a blockage removal operation on the filter mesh 112 to ensure that its working efficiency and filtering quality are not affected.

[0136] Specifically, this standard working duration is set to a certain time value ​​, representing the expected service life of the filter screen 112 under normal operating conditions. As time goes by and the number of uses of the filter screen 112 increases, after each completion of a standard working duration or a blockage removal operation, the performance of the filter screen 112 will gradually decline, and the standard working duration for its next use will also be correspondingly shortened. To adapt to this change, a clogging coefficient is introduced to dynamically adjust and update the standard working duration . In this way, the standard working duration will gradually decrease as the number of operations increases until it reaches a minimum standard working duration . This minimum standard working duration means that after the filter screen 112 has been used and had blockages removed multiple times, its performance has declined to a critical point where even if blockage removal operations continue, the working duration cannot be further extended. The purpose of this is to prevent the blockage removal time interval of the filter screen 112 from becoming too short, thus ensuring the stability and reliability of the filter screen 112 in practical applications.

[0137] The clogging coefficient is a decay factor between (0, 1); When it is close to 0, it represents rapid decay, and the cleaning effect weakens rapidly, which is suitable for systems with a large short-term impact. When it is close to 1, it represents slow decay, and the cleaning effect persists for a long time, which is suitable for systems with obvious long-term effects. For example, in a scenario where high-concentration particulate matter quickly clogs the filter screen 112, a smaller value (such as 0.3 - 0.5) can be selected; if the clogging speed of the filter screen 112 is slow, or the cleaning effect can be maintained for a long time, a larger value (such as 0.7 - 0.9) can be selected.

[0138] After the filtration operation is officially started, a timer system will be activated and start recording the initial time point of the operation, which we record with . Subsequently, the timer will add a preset standard working duration to this initial time point to calculate an estimated time for blockage removal. This time represents the moment from the start of the filtration operation to the estimated time for blockage removal operation. When the actual running time of the filtration device 100 reaches this estimated time period, the system will perform a matching detection. Once the matching is successful, it indicates that it is time for the scheduled blockage removal operation, and at this time, the system will automatically start the blockage removal operation process to ensure the smooth progress of the filtration operation.

[0139] Among them, the updated value of the standard operation duration is obtained by the following formula:

[0140]

[0141] In most cases, the blockage removal period of the filter screen 112 of such a filtering device 100 usually ranges between 8 and 24 hours, which mainly depends on the specific load conditions and operating conditions. Specifically, if the concentration of the filter residue is high or the requirement for the filtering efficiency is high, then the frequency of blockage removal needs to be increased accordingly, and the blockage removal operation may need to be carried out every 4 to 8 hours. On the contrary, if the load is light or the flow rate of the solution is relatively stable, the blockage removal period can be appropriately extended, and it can even reach once every 24 hours, or even longer. However, these conditions are preconditions and need to be set and adjusted according to the actual filtering situation to ensure that the filtering device 100 can operate efficiently and stably.

[0142] During the actual detection process, the detection component 150 will simultaneously adopt a variety of detection methods, including method P1, method P2, method P3, and method P4. These detection methods will be matched and evaluated according to their respective specific conditions. Specifically, when the detection component 150 is performing the detection task, it will check each method simultaneously to determine whether it meets the corresponding conditions. Once the detection component finds that one of the methods, whether it is method P1, method P2, method P3, or method P4, meets the set conditions and is successfully matched, then the detection component 150 will immediately stop further detection of other methods; the detection component 150 will quickly execute the blockage removal instruction corresponding to the successfully matched method, so as to quickly and effectively carry out the blockage removal operation and ensure the smooth operation of the system. This method not only improves the detection efficiency but also ensures that actions can be taken quickly when potential problems are found, thereby minimizing the downtime of the device to the greatest extent.

[0143] After the blockage removal operation is carried out, the filtering device 100 will restart the filtering operation. At this time, the detection component 150 will restart detecting the filtering operation information. When the detected filtering operation information does not match successfully, the filtering operation will continue; otherwise, the next blockage removal operation will be started.

[0144] In this embodiment, at least three detection components 150 are equipped on the filtering device 100, at least including a flow rate monitor 151, a pressure sensor 152, and a timer. These detection components 150 can monitor the operating state of the filtering device 100 in real time to ensure its normal operation.

[0145] For example, these filtering devices 100 are usually used for operations in a dedicated filtering plant, and a large number of similar filtering devices 100 are equipped in the filtering plant. Each filtering device 100 will carry out the blockage removal operation according to the information provided by its own detection component 150 to maintain the filtering efficiency.

[0146] However, due to the environmental characteristics inside the filtration plant, such as high humidity and low temperature, detection components 150 like the flow monitor 151, pressure sensor 152, and timer are more prone to damage. In such a case, maintenance personnel often cannot repair and maintain all the detection components 150 at the same time. Therefore, multiple different detection components 150 are provided on each filtration device 100 to prevent all the detection components 150 from being damaged simultaneously, thus avoiding filtration failures in the filtration device 100.

[0147] When some of the detection components 150 are damaged, the other undamaged detection components 150 can still continue to work and provide necessary filtration operation information. Through this information, the clogging situation of the filter mesh 112 can be judged, and corresponding clogging removal operations can be carried out according to the actual situation. In this way, even when some of the detection components 150 fail, the filtration device 100 can still maintain a certain operating efficiency, ensuring the stability and reliability of the entire filtration system.

[0148] It can be understood that the above - cited examples are only partial implementation manners based on the flow monitor 151, pressure sensor 152, and timer as detection components 150 to detect filtration operation information and perform matching. In fact, in addition to these specific detection components 150, there are many other possible implementation manners that can operate using a similar principle. The specific details of these implementation manners will not be elaborated in detail here. Similarly, for cases where other types of detection components 150 are used to monitor filtration operation information, such as power consumption monitors, solution concentration monitors, acoustic sensors, and resistance sensors, corresponding information matching can also be carried out through similar methods. These implementation manners are also feasible, but for the sake of brevity, they will not be elaborated here either.

[0149] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A plugging-removing filter device, characterized in that: It comprises a filter pipe (110), and a blockage removal component and a detection component (150) arranged on the filter pipe (110); the blockage removal component is used to remove blockage from the filter pipe (110), and the detection component (150) is used to detect the pressure, working time and liquid flow state of the filter pipe (110); The interior of the filter pipe (110) is hollow to form a filter chamber (111); a filter screen (112) is provided in the filter chamber (111) in the same direction as the flow direction of the filter pipe (110); a first pipe (113) and a second pipe (114) are provided on the filter pipe (110), respectively, and are in communication with the filter pipe (110); The blockage removal component comprises an ultrasonic blockage removal unit (121), the ultrasonic blockage removal unit (121) being arranged on the filter pipe (110) and covering the filter screen (112) in the direction in which the filter screen (112) is arranged in the filter pipe (110); when the ultrasonic blockage removal unit (121) is in operation, bubbles are generated in the liquid in the filter cavity (111), and the kinetic energy generated by the bursting of the bubbles causes the filter residue attached to the filter screen (112) to fall off; The ultrasonic blockage removal unit (121) comprises a control unit (122) and a plurality of ultrasonic transmitters (123); the ultrasonic transmitter (123) is connected to the control unit (122) via a line; the plurality of ultrasonic transmitters (123) are arranged on the filter pipe (110) at a preset angle and interval; The blockage removal component further comprises an adsorption blockage removal unit (132); the adsorption blockage removal unit (132) delivers a conduit (134) into the filter cavity (111) via a coupling shaft (133); a plurality of suction nozzles (135) arranged at preset angles and intervals are provided on the conduit (134); The coupling shaft (133) is connected to a driving device (131) disposed outside the filter pipe (110); when the adsorption and declogging unit (132) is in operation, the guide tube (134) performs reciprocating linear motion in the filter chamber (111), and adsorbs the filter residue into a filter residue chamber (115) disposed in the filter pipe (110) through the suction nozzle (135); The blockage removal assembly further comprises a compressed air blockage removal unit; the compressed air blockage removal unit comprises an air compressor and a compressed air pipe for communicating with the filter chamber (111); The filtering pipeline (110) is also provided with a third pipeline (116); the third pipeline (116) is provided with a control box (117); a control circuit is provided in the control box (117); the ultrasonic blockage removal unit (121), the adsorption blockage removal unit (132) and the compressed air blockage removal unit are all connected to the control circuit and perform blockage removal operations according to the control of the control circuit.

2. A detection method, applied to a plugging-removing filter device according to claim 1; characterized in that: include: The detection component (150) detects filtering operation information of the filtering pipeline (110) after the filtering device (100) starts operating; The filtering operation information includes pipeline pressure information and / or pipeline working time information and / or liquid flow information; Matching the detected filtering operation information with the corresponding blocking removal threshold; If the filtering operation information successfully matches the corresponding blocking removal threshold, the blocking removal component performs a blocking removal operation on the filtering pipeline (110); If the filtering operation information fails to match the corresponding blocking removal threshold, the detection component (150) continues to detect the filtering operation information; When the unblocking component is performing an unblocking operation on the filter pipe (110), the detection component (150) stops the detection operation; When the unblocking operation is completed, the detection component (150) restarts the detection operation.

3. A detection method according to claim 2, characterized in that: The detection component (150) detects the filtering operation information of the filtering pipeline (110) after the filtering device (100) starts operating, including at least one of the following methods: The detection component (150) detects the flow difference between two adjacent moments of the second pipeline (114) using a flow monitor (151) after the filtering device (100) starts operating; The detection component (150) detects the flow difference between the first pipeline (113) and the second pipeline (114) using a flow monitor (151) after the filtering device (100) starts operating; The detection component (150) detects the pressure difference between the first pipeline (113) and the second pipeline (114) using the pressure sensor (152) after the filter device (100) starts operating; The detection component (150) uses a timer to detect the working time of the filtering pipeline (110) after the filtering device (100) starts working.

4. A detection method according to claim 3, characterized in that: The detection component (150) detects the flow difference between two adjacent moments of the second pipeline (114) using a flow monitor (151) after the filtering device (100) starts operating, including: The flow rate monitoring meter (151) is used to detect the flow rate of the second pipeline (114). Traffic flow at the moment ; The flow rate monitoring meter (151) is used to detect the flow rate of the second pipeline (114). Traffic flow at the moment ; The flow difference between the two moments The flow difference blocking threshold corresponding to the flow difference Make comparisons; If the flow rate difference Greater than or equal to the flow difference blocking threshold The match is successful.

5. A detection method according to claim 3, characterized in that: The detection component (150) detects the pressure difference between the first pipeline (113) and the second pipeline (114) using the pressure sensor (152) after the filter device (100) starts operating, including: The pressure sensor (152) is used to detect the pressure at the outlet of the first pipeline (113). ; The pressure sensor (152) is used to detect the pressure at the outlet of the second pipeline (114). ; The pressure difference between the first pipeline (113) and the second pipeline (114) The pressure difference blocking threshold corresponding to the pressure difference Make comparisons; If the pressure difference between the first pipeline (113) and the second pipeline (114) Greater than the pressure difference blocking threshold The match is successful.

6. A detection method according to claim 3, characterized in that: The detection component (150) detects the working time of the filter pipe (110) using a timer after the filter device (100) starts working, including: The timer is used to record the time when the filtering pipeline (110) starts operating. The value of The time when the operation starts The value of plus the standard operating time of the filter (112) ; The time when the operation starts Plus the standard operating time of the filter (112) The value after the working time is the working time corresponding to the working time. Make comparisons; If the time of starting the operation Plus the standard operating time of the filter (112) The value after is greater than or equal to the working time congestion removal threshold The match is successful when The standard operation time After each unblocking operation is performed on the filter pipe (110), the blockage coefficient is Update; when the time of starting the operation Add the updated filter (112) standard operation time The value is less than the minimum standard working time After that, according to the minimum standard working hours Carry out blockage removal operations at intervals.

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