7569 results about "Filter element" patented technology

A regenerative filter that includes a filter housing having inlet and outlet zones; a fluid path provided between the inlet and outlet zones; a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path. The filter elements are disposed in an monolithic array. An inlet port arrangement is disposed at the filter housing leading to the inlet zone and is constructed and arranged to direct the fluid path into the filter housing in a manner so as to maintain a controlled turbulence at the inlet zone. The inlet port arrangement comprises a pair of inlet ports that are arranged in juxtaposition at the inlet zone and each having one end where the fluid flow enters. Embodiments that are considered as falling under the scope of the present invention include 1. Single inlet / two or more outlets; 2. Two or more inlets / single outlet, or 3. Two or more inlets and two or more outlets.

The utility model provides a base station and a cleaning system, the base station comprises a base station main body and a dust collection module, and the base station main body comprises a cleaning tank; the dust collection module comprises a dust collection fan; a dust collecting opening and a first air outlet are formed in the inner wall, opposite to the opening, of the cleaning tank, the dust collecting opening can be in butt joint with a second dust discharging opening in a machine body of the cleaning equipment, and the first air outlet can be in butt joint with a second air discharging opening in the machine body; under the action of the dust collecting fan, after garbage in a dust box of the cleaning equipment sequentially passes through the second dust discharging opening and the dust collecting opening along with airflow and enters the air channel of the base station, the airflow at least flows out of the air channel through the first air outlet, and the airflow flowing out of the first air outlet is blown to a first filtering piece of the cleaning equipment through the second air discharging opening; garbage on the first filter part is blown into the dust box; when the cleaning equipment is used for cleaning the surface to be cleaned, the first filtering piece is used for filtering airflow flowing from the dust inlet of the dust box to the second exhaust outlet. According to the base station, the first filtering part can be self-cleaned under the action of the dust collection fan of the base station, and the use experience is improved.

The utility model provides a self-propelled silage reclaimer, which relates to the technical field of reclaimers, and comprises a self-propelled silage reclaimer assembly, the self-propelled silage reclaimer assembly is provided with a dust collection assembly and an adjusting assembly, the self-propelled silage reclaimer assembly comprises a cutting reclaiming knife and a conveying belt, the dust collection assembly comprises a dust collection cover, and the dust collection cover is provided with a dust collection opening. And one end of the dust hood is connected with a conveying hose. The suction fan works to generate suction force, so that the dust hood sucks and removes flying dust generated during cutting and material taking, the sucked and removed dust and the like are conveyed to the collecting box through the conveying hose, the filter element is beneficial to preventing the dust and the like from entering the suction fan, and normal operation of the suction fan is guaranteed; and finally, the movable sealing plate moves in the sliding groove, so that the sucked dust and the like can be cleaned, the dust spreading in the working area is reduced, the dust attached to the surface of the machine is reduced, and an operator can more clearly observe the running state of each part of the machine.

The invention relates to the technical field of transformers, in particular to a power electronic transformer with a shielding structure, which mainly comprises a transformer body, a radiator is fixedly mounted on the side surface of the transformer body, a cooling fan is fixedly mounted at the end part of the radiator, and a weak current box is fixedly mounted at the end part of the transformer body. Double oil mist separation is achieved through the deoiler, one is that spiral ascending airflow is formed through guiding of the jet pipe, oil mist in gas is removed according to the centrifugal demisting principle, and the other is that residual oil mist in the gas is secondarily intercepted through the filter element pipe, so that the oil mist in respiratory airflow can be effectively removed, the oil mist interception efficiency is remarkably improved, and the oil mist separation efficiency is greatly improved. Meanwhile, the elastic membrane of the buffer can absorb sudden pressure change of the oil conservator through elastic deformation, so that the pressure fluctuation amplitude is reduced when the load changes suddenly, pulverization or structural damage of the drying agent caused by strong airflow impact is avoided, it is ensured that the moisture absorption drying agent is always in a clean and stable working environment, and the efficient dehumidification capacity is maintained.

Liquid filter assemblies, features, components and methods are described. In general, a liquid filter cartridge is provided which includes features that help ensure that when the assembly is serviced, the cartridge positioned within the assembly is a proper one, in proper sealing orientation, for appropriate use. Features that can be used to provide for this include: a seal on the filter cartridge that defines a seal pattern non-orthogonal to a plane perpendicular to a central axis of the filter cartridge; and, a member of a projection / receiver arrangement on the filter cartridge which is orientated to engage a portion of a liquid filter assembly, for example a liquid flow collar, to allow sealing when the cartridge is a properly positioned cartridge and a properly configured cartridge. Assembly features are described. Also, a flexible radial projection arrangement providing snap-fit interaction between a cartridge and housing is provided. Methods of assembly and use as described.

Belonging to the field of petrochemical engineering, the invention discloses a catalytic slurry oil purification device, which comprises a tank body, and a feed end and a discharge end respectively arranged at two ends of the tank body. An upper partition plate and a lower partition plate are fixedly connected to the inner wall of the tank body, a discharging opening is formed in the upper partition plate, and a feeding opening is formed in the lower partition plate; the interior of the tank body is divided into three independent cavities by the upper partition plate and the lower partition plate; according to the scheme, the filter element is sleeved with the hollow cylinder, and the rotatable first spiral flow deflector is further arranged between the inner wall of the hollow cylinder and the outer wall of the filter element; a rotatable first spiral flow deflector is further arranged between the inner wall of the hollow cylinder and the outer wall of the filter element; a shear force generated by rotation of the first spiral flow deflector can prevent a filter cake on the surface of the filter element from forming a compact thick layer; a filter cake layer can be controlled within a relatively thin thickness range, and the rising speed of the pressure difference is delayed, so that the operation duration of a single filtering period is prolonged; and the single-time continuous treatment capacity of the device is greatly improved.

The utility model discloses a semi-automatic backwashing laminated filter. The external structure of the semi-automatic backwashing laminated filter comprises a handle, a filter base body, a water inlet, a water outlet, a laminated shell, a blow-down valve, a blockage indicator, a filter screen flushing valve and the like, the internal structure comprises a flow direction selector, a butterfly check valve, a laminated filter element, a rotational flow centrifugal disc, a laminated compression inner cover, a laminated compression outer cover, a spring between the laminated compression inner cover and the laminated compression outer cover and the like. The channel position of the flow direction selector is switched by rotating the handle, so that the switching between the filtering mode and the backwashing mode is realized. In a filtering mode, muddy water flows into a raw water cavity outside the lamination after being accelerated by the rotational flow centrifugal disc, impurities are intercepted, and clear water flows into a downstream pipeline; and in a backwashing mode, the water flow is sprayed out from the spraying holes in the filter element frame by pressing the position of the lamination for compressing the inner cover and loosening the lamination, so that impurities are eluted from the lamination and discharged through the blow-down valve. In addition, a filter screen is arranged on the flow direction selector to intercept impurities of flushing water, and the filter screen can be flushed in a filtering mode. The utility model has the advantages of convenient use and simple structure.

The invention provides an intelligent operation optimization and fault processing method for a hydraulic power unit, and the method comprises the steps: collecting real-time pressure data and flow data from the hydraulic power unit through a sensor network, and carrying out the classification processing of the collected pressure data and flow data through a support vector machine algorithm, obtaining a current operation state classification result of the hydraulic power unit; through power redundancy configuration of the started hydraulic power unit, synchronous signal data are collected for the pressure regulating valve group, a neural network algorithm is adopted to conduct prediction processing on the synchronous signal data, and an expected response time sequence of pressure regulation is obtained; according to the obtained filter mechanism optimization result with the minimized oil path interruption, real-time monitoring is conducted on filter element blockage data in the high-dust environment, anomaly detection is conducted on the filter element blockage data through a support vector machine algorithm, and a predicted deviation value of pressure fluctuation is obtained.

The embodiment of the utility model discloses a purified water dispenser which comprises a water softening system, a water purifying system and a controller, a water inlet of the water softening system is used for receiving raw water, and a water outlet of the water softening system can output soft water; a water inlet of the water purification system is communicated with a water outlet of the water softening system, a water outlet of the water purification system is used for outputting purified water, the water purification system comprises a filtering system and a wastewater drainage pipeline, a water inlet of the filtering system is communicated with the water inlet of the water purification system, and a water outlet of the filtering system is communicated with the water outlet of the water purification system; a wastewater port of the filtering system is communicated with a wastewater drainage pipeline; the controller is connected with the soft water system and is connected with the wastewater drainage pipeline; when the water outlet of the water softening system outputs hard water, the controller is used for controlling the wastewater drainage pipeline to increase the wastewater discharge capacity so as to protect the filtering system, and the filter element can have the normal service life.

The invention relates to the technical field of electric meters, in particular to an internet of things intelligent electric meter supporting edge computing, which comprises an intelligent electric meter shell and a circuit board arranged in the intelligent electric meter shell, and further comprises an elastic mounting system which comprises a plurality of clamping seats fixed on the inner wall of the intelligent electric meter shell and a plurality of clamping heads fixed on the edge of the circuit board, a bidirectional buffer mechanism is arranged between the clamping head and the clamping seat, the bidirectional buffer mechanism allows the circuit board to perform multi-degree-of-freedom micro motion in a vibration environment so as to buffer impact, the heat exchange and dehumidification system comprises a heat conduction copper rod penetrating through the clamping seat, one end of the heat conduction copper rod is thermally connected with the bidirectional buffer mechanism, and the other end of the heat conduction copper rod is provided with heat dissipation fins. The heat conduction copper rod is sleeved with a moisture absorption filter element and a breathing heat dissipation system, the breathing heat dissipation system comprises a breathing air shell fixed in the intelligent electric meter shell, a suction groove is formed in the breathing air shell, an intermittent air exchange mechanism is arranged in the breathing air shell, and the air exchange mechanism can periodically suck external cooling air into the shell and then discharge the air out of the shell to blow the circuit board.

The utility model provides a water purifier. The water purifier comprises a filter element assembly, a shell, a conductivity sensor and a turbidity sensor, the filter element assembly is arranged in the shell, and a filter cavity is formed between the filter element assembly and the shell; the shell is provided with a water inlet and a water outlet, the water inlet is communicated with the filter chamber, a filter inlet of the filter element assembly is communicated with the filter chamber, and a filter outlet of the filter element assembly is communicated with the water outlet; the conductivity sensor is arranged at the water inlet, the turbidity sensor is arranged on the shell or the filter element assembly, and the detection end of the turbidity sensor is used for detecting the quality of raw water in the filter cavity. According to the utility model, through dual monitoring of the conductivity sensor and the turbidity sensor, the attenuation slope is obtained by fitting conductivity and turbidity data, and the attenuation slope is compared with a filter element service life attenuation slope database, so that the service life of the filter element can be predicted more accurately.

The invention relates to the technical field of water treatment filter materials, in particular to an intelligent clean gradient composite water purification filter element and a preparation method thereof. The filter element adopts an integrated design of'natural gradient base material + ZIF-67 function enhancement + fluorescence-ultrasonic intelligent regeneration ': modified vegetable sponge is used as a porous support layer, a silica gel / ZIF-67 composite gradient layer is constructed on the porous support layer to realize adsorption and antibacterial dual functions, and dopamine-aluminum ions are used for composite surface modification to enhance hydrophilicity and interlayer binding force; a matched automatic system senses pollution in real time through the fluorescence monitoring module and triggers the ultrasonic regeneration module to complete self-cleaning, and the flux recovery rate is larger than or equal to 97.5%; the interception rate of the filtering element to anabaena under the operation pressure of 0.1-0.3 MPa is larger than or equal to 99.2%, the filtering flux is increased by 6-8 times compared with that of a commercial element, the filtering element can tolerate complex water quality in the coexistence of drugs and personal care products, natural vegetable sponge serves as a base material, and the filtering element has the advantages of biocompatibility and low cost and is suitable for drinking water purification and eutrophication water body treatment.

The invention provides an air purification filter element control method and system based on environment awareness, and the method comprises the steps: collecting environment parameter data of a to-be-purified space and working state data of purification equipment, extracting the spatial and temporal change characteristics of the pollutant concentration in the environment parameter data, and generating environment characteristic data; based on the ventilation quantity and the environment characteristic data in the working state data, calculating the mass flow of each pollutant passing through the filter element, and performing weighted correction on the mass flow through a preset load coefficient to obtain a current load value; cumulative calculation is conducted on the load history data, the pressure difference distribution data and the current load value, and filter element service life parameters are obtained; target operation parameters are determined based on the filter element service life parameters and the environment parameter data, and a fan and a valve of the purification equipment are adjusted; according to the method, accurate evaluation of the state of the filter element is realized through multi-point environmental perception and load accumulation calculation, and dynamic regulation and control are performed by combining the environmental pollution degree and the service life of the filter element, so that the purification efficiency is improved and the service life of the filter element is prolonged.

The invention provides a cooling and lubricating system, a vehicle and a control method of the cooling and lubricating system. The system comprises an oil pan and a conveying pipeline, and the inlet end of the conveying pipeline communicates with the oil pan; the power element, the filtering element, the driving element, the heat exchange element and the speed reduction element are sequentially arranged on the conveying pipeline in the conveying direction of lubricating oil. The outlet end of the conveying pipeline communicates with the oil pan. The temperature detection part is arranged between the filtering element and the driving element so as to detect the real-time temperature of the lubricating oil filtered by the filtering element; and the controller is connected with the temperature detection part so as to control at least one of the rotating speed of the power element, the rotating speed of the driving element, the rotating speed of the speed reduction element and the heat exchange efficiency of the driving element according to the real-time temperature. And the size is huge.

The invention discloses a self-sealing oil return and suction three-in-one valve and a self-sealing oil suction and return integrated filter, and belongs to the technical field of hydraulic system filtration. In order to solve the problems that the installation position of an existing oil suction and return integrated filter is limited, leakage is prone to occurring when a filter element is replaced, bubbles cannot be treated, and redundancy is caused by separation of a bypass and a sealing structure, a main valve element is integrated with a self-sealing valve element, a back pressure valve element and an oil suction valve element, and when the filter element is installed, an upper spring presses the main valve element to open an oil way; during disassembly, the self-sealing valve spring drives the main valve core to reset to realize automatic sealing; meanwhile, a defoaming filter element is integrated to break bubbles in return oil, a conical separator is arranged to isolate an oil suction path from an oil return path, and an emergency oil path is conducted through a bypass one-way valve when the oil return filter element is blocked. The filter supports side mounting or bottom mounting, is free of leakage during maintenance, has solid impurity filtering and gas-liquid separating functions, is compact in structure and high in reliability, and is suitable for compact hydraulic systems of engineering machinery and industrial equipment.

The filter element assembly comprises a water path plate, a pretreatment filter element, a reverse osmosis filter element, a pressure tank and a one-way valve, the water path plate comprises a plate body, a plurality of filter element mounting seats and a water path structure part, the plurality of filter element mounting seats comprise a first mounting seat and a second mounting seat, and the first mounting seat and the second mounting seat are arranged on the plate body; an avoiding groove is concavely formed in the inner wall surface of the water path, the groove bottom of the avoiding groove is communicated with a water outlet of the water path plate, the pretreatment filter element and the first mounting seat are coaxially mounted, the reverse osmosis filter element and the second mounting seat are coaxially mounted, the pressure tank is communicated with a water outlet of the reverse osmosis filter element through the water path, and the one-way valve is arranged between the reverse osmosis filter element and the pressure tank. The receding groove is located between the connecting port of the waterway communicating pressure tank and the one-way valve. According to the arrangement, when the water purifier begins to discharge water, water in the pressure tank and water flowing out of the one-way valve respectively flow into the avoiding groove from the two sides of the avoiding groove, so that the water can be smoothly discharged from the water outlet of the waterway plate, and the water outlet efficiency of the water purifier is further improved.

The utility model discloses VOCs activated carbon adsorption filtering equipment with an anti-clogging rotary drum, and relates to the technical field of VOCs treatment.The VOCs activated carbon adsorption filtering equipment comprises a base, a first round hole is formed in the base, a rotating shaft is movably connected in the first round hole, a mounting seat is fixedly connected to the top of the rotating shaft, a dismounting module is arranged on the mounting seat, and the dismounting module comprises a rotating ring; the rotating ring is movably connected to the outer wall of the mounting seat, a box body is fixedly connected to the top of the base, a cleaning module is arranged in the box body and comprises a mounting frame, the mounting frame is fixedly connected to the inner wall of the top of the box body, a fixing frame is fixedly connected to the top of the mounting seat, and a fixing seat is fixedly connected to the top of the fixing frame; the top of the fixing base is fixedly connected with a gear ring. The VOCs activated carbon adsorption filtering equipment with the anti-clogging rotary drum has the technical effects that the surface of the filter element is automatically cleaned in the operation process, the service life of the filter element is prolonged, and the convenience and the working efficiency of the equipment are improved.

The invention relates to the technical field of water treatment, in particular to a silk-screen printing tempered glass panel production wastewater recycling device which comprises a treatment box, a first sleeve and a tubular filter element, the first sleeve is coaxially and fixedly arranged in the treatment box, an opening of the first sleeve faces upwards, and the tubular filter element is coaxially arranged in the first sleeve; the device further comprises a rotational flow assembly, a suction assembly and a driving assembly, the rotational flow assembly is arranged in the treatment box and comprises a spiral guide plate, the tubular filter element is arranged in the spiral guide plate, the suction assembly is arranged on the treatment box, and the driving assembly is arranged in the treatment box and connected with the spiral guide plate. Through the arrangement of the tubular filter element, the rotational flow assembly, the suction assembly and the driving assembly, the surface of the tubular filter element is subjected to self-cleaning treatment by utilizing high shear force generated by rotational flow of the wastewater in cooperation with glass powder while the wastewater is filtered, and normal operation of the wastewater recycling process is ensured on the basis of improving the filtering effect.

The invention discloses a boiler pipe valve anti-blocking control method and system based on state monitoring, a boiler pipe valve comprises a valve body and a valve element, the two sides of a valve body pipeline are connected with a filter cartridge and a filter shell respectively, the valve element is arranged in the valve body, and the control method comprises the steps that flow parameters of fluid flowing through the valve body in the current control period are obtained; a pulse disturbance mode corresponding to valve element control is determined based on the fluid flow parameters; according to the pulse disturbance mode, the opening degree of the valve element is adjusted through the preset time sequence and the preset amplitude, so that the fluid generates a disturbance effect, and particulate matter in the fluid is inhibited from being deposited on the surfaces of the filter cartridge and the filter shell. By monitoring the fluid flow in real time and adaptively generating a pulse disturbance mode matched with the fluid flow, the valve element is actively controlled to act to enable the fluid to generate targeted disturbance, so that deposition of particulate matter on the surface of the filter element is effectively inhibited, and fundamental conversion from passive blockage post-treatment to active deposition pre-prevention is realized.

The invention discloses a filter element self-adaptive temperature regulation and control method based on a dynamic environment, particularly relates to the field of temperature regulation and control, and aims to solve the problem that an existing filter element is insufficient in deformation compensation under complex working conditions. A time sequence temperature distribution matrix is obtained by constructing a multi-point temperature monitoring network on the surface of the filter element, a heat flow density distribution diagram is generated by combining material heat conduction characteristics, the heat flow convergence acceleration rate is calculated through continuous time sequence heat flow changes, and deformation risk indexes of all areas are obtained by combining material thermal expansion coefficients. And the warping or ripple trend can be identified in advance. And judging a deformation mode according to the time sequence change of the risk index and the temperature gradient, respectively generating a warping compensation temperature instruction or a ripple suppression temperature instruction, and forming closed-loop regulation and control by continuously updating the temperature distribution and the risk index. According to the method, refined temperature regulation and active anti-deformation control of the filter element are achieved, the stability of the filter element is remarkably improved, and the service life of the filter element is remarkably prolonged.

Water jet-assisted sludge extraction and conveying device, characterized in that it comprises: an extrusion pump body (1) for supplying the drive for conveying sludge from the tunnel, wherein the extrusion pump body (1) is provided with a first water inlet pipe (2) for sludge supply and a first water outlet pipe (3) for conveying sludge; a return and processing pipeline for assisting the extrusion pump body (1) in suctioning and conveying the sludge, wherein the return and processing pipeline comprises a filter element, an air bag pressurization element and a water jet flushing element, wherein the filter element is configured to separate sludge water from the sludge coming from the extrusion pump body (1) and convey the sludge water to the air bag pressurization element, the air bag pressurization element is configured to pressurize and dilute the sludge water to obtain high-pressure sludge water, and convey the high-pressure sludge water to the water jet flushing element, the water jet flushing element is configured to return the high-pressure sludge water to the sludge in the tunnel; a suction and conveying element for suctioning sludge and conveying sludge to the first water inlet pipe (2); a sand cleaning element which is connected to the air bag pressurization element and is designed to return the high-pressure sludge water in the air bag pressurization element to the first water inlet pipe (2) and thereby flush the first water inlet pipe (2) and the extrusion pump body (1).

The filter element assembly comprises a water path plate, a pretreatment filter element, a reverse osmosis filter element and a waste water valve, the water path plate comprises a plurality of filter element mounting seats and a water path structure part, and the central axes of the plurality of filter element mounting seats define a central axis surface; the plurality of filter element mounting seats comprise a first mounting seat and a second mounting seat, the pretreatment filter element and the first mounting seat are coaxially mounted, the reverse osmosis filter element and the second mounting seat are coaxially mounted, the wastewater valve is mounted on the water path structure piece and is positioned on one side of a middle axial surface, and the wastewater valve is communicated with a wastewater opening of the reverse osmosis filter element through a water path; the wastewater of the reverse osmosis filter element is only allowed to flow to the water outlet of the waterway plate unidirectionally. According to the technical scheme, the space of the waterway plate on the two sides of the middle axial surface can be fully utilized, and the size of the water purifier is reduced.

A water treatment system includes a main container defining an interior and having an upper edge, a reservoir removably insertable into the interior and located upon the upper edge, the reservoir defining a cartridge seat including a plurality of holes in communication with a helical thread, and an annular landing vertically depending from the thread, a filter cartridge including a cap associated with a sump body and having a filter media in the sump body, the cap having a plurality of radially outwardly projecting pins constructed and arranged for engaging the holes and the helical thread, an annular seal disposed externally on the sump body and spaced below the cap. The filter cartridge and the cartridge seat are configured so that upon the cap pins engaging the helical thread, upon reaching a fully engaged position of the cap in the thread, the seal is compressed against the annular landing.

The invention relates to an on-line monitoring and melt purification device and method for XLPE insulation material production and a storage medium, the device is integrated on a melt pipeline between an outlet of a main extruder and a die head, and the device comprises an ultrasonic monitoring unit for obtaining ultrasonic characteristic parameters of a melt through ultrasonic scanning; the intelligent purification unit comprises a multi-cavity filter, a switching valve connected with each cavity of the multi-cavity filter, and a backwashing system for cleaning a single filter cavity; and the central control unit is electrically connected with the ultrasonic monitoring unit and the intelligent purification unit, and is used for receiving the monitoring data, carrying out intelligent judgment and sending out a control instruction. The ultrasonic monitoring unit achieves on-line monitoring of the melt impurity concentration, through cooperation of the multi-cavity filter and the switching valve, on-line uninterrupted switching of filtering cavities is achieved, meanwhile, a filter element is cleaned in time through the backwashing system, and the purity of an XLPE insulating material and the product reliability are effectively improved.

The utility model discloses a central water treatment filtering device for desalted water production. A raw water inlet pipe of a reservoir is communicated with a water inlet pipeline of each filter; the ultrafiltration processors are connected in series; a water outlet of each filter is communicated with a water inlet pipeline of the first-stage ultrafiltration treater; a water outlet of the N-stage ultrafiltration treater is communicated with a water inlet pipeline of the filtered water storage tank; a water outlet of the filtered water storage tank is communicated with a water inlet pipeline of the primary reverse osmosis processor; all stages of reverse osmosis processors are connected in series, and water outlets of the N stages of reverse osmosis processors are communicated with a demineralized water storage tank pipeline. According to the device, the content of various pollutants in water entering the ultrafilter can be reduced, a filter element for ultrafiltration and reverse osmosis can be protected, the content of various impurity ions in the water after ultrafiltration is reduced, the conductivity of produced water is about 10 us / cm, the hardness is 0.01 mol / L or below, the produced water is used for supplementing water for a steelmaking and steel rolling heating furnace, and generated steam can be used for power generation of a steam turbine. Water consumption is reduced, resources are saved, and the accumulation speed of scale in the boiler is effectively reduced.

The invention discloses a blockage prediction and alarm system for an oil absorption filter, and relates to the technical field of prediction and alarm, the system comprises a data acquisition module, a data processing module, a blockage quantification module and a prediction and alarm module, the data acquisition module periodically acquires the running state data of the filter; the data processing module adopts a Pauta criterion to eliminate abnormal data, calculates a unit flow pressure difference and a pressure difference change rate, and eliminates oil temperature viscosity interference through a viscosity-temperature characteristic compensation model to obtain a standard pressure difference; the blockage quantification module obtains an ideal pressure difference through a clean filter element baseline model, calculates an original blockage coefficient, and corrects through a time domain residual fusion mechanism to obtain a residual calibration blockage coefficient; the prediction and alarm module constructs a blockage time sequence prediction model based on the long-short-term memory network, generates a blockage coefficient prediction value in the next acquisition period to decide whether to trigger sound-light alarm, and realizes the preposed sensing and alarm of the blockage risk of the oil absorption filter.

The invention relates to an air filter. A filter housing has a fixed support element. Flow openings are formed between the struts of the flat support grid. The support element serves to support a filter element. The filter element can be detachably connected to the support element.

The present invention discloses a shower arm structure, achieving a built-in design of a filter element and facilitating replacement. The shower arm structure includes a shower arm body, a filter element, and a sealing cap. The shower arm body has a front surface provided with a mounting cavity, and a back surface provided with a water inlet hole communicating with a shaft end of the mounting cavity; the filter element is disposed in the mounting cavity; the sealing cap is detachably connected at an opening of the mounting cavity and fixes the filter element; and water in the water inlet hole enters the filter element and is filtered before flowing out, and is transported outward through a water path of the shower arm body.

The utility model relates to a filter element and a water purifier. The filter element comprises a filter element body, the filter element body comprises a filter component, a decorative cover and a stop piece connected to the decorative cover, the decorative cover is arranged at one axial end of the filter component, and the decorative cover is configured to rotate around the axial direction of the filter element relative to the filter component; the locking part is connected with the filtering part to be locked and unlocked to be separated from the filtering part; the handle is rotationally connected to the decorative cover, so that the handle has a holding state and a storage state; and in the holding state, the stopping piece is inserted into the filtering part in the axial direction of the filter element so as to inhibit relative rotation of the filtering part and the decorative cover. According to the filter element and the water purifier, when the filter element is pulled out of the water purifier, the decorative cover is not easy to loosen from the filtering part, and the filter element is more convenient to disassemble.

The invention relates to the technical field of water purifiers, in particular to a filter element, a preparation method of the filter element and a water purifying device.The filter element comprises a silica sand layer, an activated carbon adsorption layer and a modified nano-silver functional layer which are stacked in the water flow direction; wherein the modified nano-silver functional layer comprises nano-silver particles modified by antibacterial peptide-cyclodextrin. According to the filter element prepared through the method, a superfine and dispersed nano-silver particle system is constructed, the stability of nano-silver in the filter element system can be greatly enhanced, then the antibacterial activity and antibacterial broad-spectrum performance of the nano-silver are improved, meanwhile, efficient removal of heavy metal is achieved in an auxiliary mode, and the water purification efficiency of a water purification device is effectively and comprehensively improved.