23278 results about "Screen filter" patented technology

An intelligent real-time adaptive control air-blowing-type condenser and a usage method therefor, belonging to the technical field of condensers. The intelligent real-time adaptive control air-blowing-type condenser comprises: a condenser body (1) arranged on a mounting frame (101), an axial flow fan (2) being arranged on the top of the condenser body (1); a filter screen (3), which is mounted on the side wall of the condenser body (1) by means of bolts; a cleaning mechanism (4), which is arranged on the outer side of the filter screen (3) and is configured to remove impurities from the filter screen (3); and a moving mechanism (5), which is arranged on the mounting frame (101) and is configured to drive the cleaning mechanism (4) to move, wherein the cleaning mechanism (4) comprises a dust collection shell (401), a cleaning assembly arranged in the dust collection shell (401) and configured to sweep the impurities away from the outer side of the filter screen (3), and a dust settling assembly arranged in the dust collection shell (401) and configured for dust settling. The filter screen (3) on the outer side of the condenser can be cleaned without shutdown of the condenser.

The invention relates to the technical field of dust collector control, and discloses a multi-motor cooperative speed regulation and energy efficiency optimization control method and device for a dust collector, and the method comprises the steps: monitoring the rotating speed, current, voltage, temperature and other operation parameters of a plurality of motors in real time, and determining the working load state of each motor through a load recognition model. Different cooperative speed regulation strategies are matched according to load states, such as PID control for low loads, fuzzy logic control for medium loads and model prediction control for high loads. A dynamic weight distribution algorithm is used for adjusting the target rotating speed, and an energy efficiency optimization algorithm is used for optimizing power distribution. Meanwhile, environmental parameters are considered, and control parameters are optimized through a self-adaptive parameter adjustment model. And the system also has the functions of adjusting strategies according to load fluctuation and power consumption, motor priority ranking during high load, energy efficiency algorithm parameter optimization, rotating speed adjustment during filter screen blockage, motor state monitoring and prediction and the like, so that accurate speed regulation and efficient energy conservation are realized, and the performance and the intelligent level of the dust collector are improved.

The invention discloses a protection device for power distribution control equipment, and relates to the technical field of protection devices, the protection device comprises a base, the top of the base is provided with a buffer damping assembly, the top of the buffer damping assembly is provided with a power distribution cabinet shell, and a filter screen cleaning assembly is arranged below the left side wall of the power distribution cabinet shell. The inner wall of the rear side of the power distribution cabinet shell is fixedly connected with a plurality of equidistantly arranged power distribution equipment clamping assemblies. According to the power distribution cabinet, vibration can be effectively absorbed and buffered through the arranged buffering and damping assembly, the vibration is prevented from being directly transmitted to precise power distribution control equipment in the power distribution cabinet, meanwhile, noise can be reduced, the arranged filter screen cleaning assembly can clean a filter screen at regular intervals, a good heat dissipation effect is maintained, and the arranged power distribution equipment clamping assembly is capable of clamping the power distribution equipment. The device can firmly clamp the power distribution equipment, wiring looseness caused by shaking is avoided, meanwhile, an operator can easily take out the power distribution equipment from a power distribution cabinet, and the equipment maintenance time is greatly shortened.

The invention discloses an atmospheric particle early warning device for air pollution concentration monitoring, and belongs to the technical field of air particle pollutant monitoring, the atmospheric particle early warning device comprises an equipment main body fixedly mounted in a monitoring area, an alarm is fixedly mounted on the outer side of the upper part of the equipment main body, and a fixed pipe is fixedly mounted at the upper end of the equipment main body; a movable pipe is arranged on the inner side of the fixed pipe in a lifting mode, a sampling head is fixedly connected to the top of the movable pipe, a cleaning assembly driven through air pressure change is arranged on the inner side of the sampling head, a base is fixedly arranged on the outer side of the fixed pipe, and a movable plate is arranged on the inner side of the base in a lifting mode; and a backflushing cleaning assembly is connected between the movable plate and the base. The atmospheric particle early warning device for monitoring the air pollution concentration can collect gas samples at different height positions, and can automatically clean impurities attached to the outside of the filter screen and residual gas in a pipeline after sampling is finished, so that long-term and accurate monitoring of equipment is effectively ensured.

The invention relates to the field of household appliances, and discloses an air purifier efficient filter screen replacement prompting method and system.The method comprises the steps that firstly, air adsorption data are obtained, and the concentration of pollution particles is recognized to determine a filter screen load mode; analyzing the use state of the filter screen, and performing attenuation detection in combination with historical replacement records to obtain attenuation data; calculating the service residual life according to the attenuation data, evaluating a purification index, generating a filter screen efficiency index in combination with the environment air quality, and dividing replacement levels; then configuring multi-order prompt information according to levels, determining a filter screen edge area, calculating a penetration rate and positioning a weak part; and finally, generating a local failure graph, extracting failure interference factors, constructing adaptive replacement logic and formulating a replacement prompt scheme. The filter screen utilization rate can be increased, and the purification efficiency can be guaranteed.

The invention relates to the technical field of power distribution cabinets, and discloses a power distribution cabinet with a self-adaptive environment adjusting mechanism, and the power distribution cabinet comprises a cabinet body which is used for fixing and supporting internal electrical elements; the automatic dehumidification assembly is mounted on the outer side of the cabinet body and is used for dehumidifying the cabinet body when detecting that the moisture content in the cabinet body is too high; the cleaning assembly is installed on one side of the cabinet body and used for conducting anti-blocking treatment on a filter screen arranged outside the cabinet body, and the driving assembly is installed outside the cleaning assembly and used for driving the cleaning assembly. By adding the automatic dehumidification assembly, the humidity in the power distribution cabinet can be effectively reduced, and the risk of electrical short circuit caused by a humid environment is reduced. By discharging moisture, safe operation of electrical equipment is guaranteed, and fire and electric shock accidents caused by moisture are avoided. And meanwhile, corrosion and aging processes can be slowed down, the service lives of the power distribution cabinet and internal components are remarkably prolonged, and the maintenance and replacement cost is reduced.

The utility model relates to the technical field of sewage treatment, and discloses a multi-stage filtering type trash remover, the top end of each filter screen plate is fixedly connected with a conical filter plate, the top end of each filter screen plate is provided with a slot, each slot is internally provided with a water blocking plate, and the water blocking plate is provided with a water outlet. A collecting mechanism is arranged at the position, close to the inserting groove, of the bottom end of each filter screen plate, a drawing mechanism is arranged between the side ends of the water blocking plates, and a cleaning mechanism is arranged between the top ends of the conical filter plates. By means of the structure, the trash remover body can filter sewage normally, the water seepage effect of the filter screen plate and the conical filter plate cannot be affected, automatic cleaning of impurities can be achieved through cooperative arrangement of the drawing mechanism, the cleaning mechanism and other structures, manual cleaning is not needed, the cleaning difficulty is lowered, and the cleaning speed is increased.

The utility model relates to the technical field of water pump desilting, in particular to vertical water pump desilting equipment which comprises a bearing transmission mechanism, a high-frequency vibration mechanism installed on the bearing transmission mechanism and a vertical water pump installed on the high-frequency vibration mechanism. The bearing transmission mechanism comprises a transmission assembly, traction pieces installed on the transmission assembly, two outer frames connected to the top ends of the traction pieces and guide rods installed on the tops of the two traction pieces. After the vertical water pump is suspended and clamped and the vertical water pump in an overhead state is in an inclined state and performs high-frequency vibration, excess materials remaining in the water pump can be shaken off outwards from a filter screen at the moment, so that the water pump does not need to be put into clear water to be washed, and lossless dredging operation can be performed on the water pump; therefore, the inner wall of the used water pump cannot be corroded.

The invention relates to the technical field of spray towers, and discloses a spray tower for a tail gas treatment system, the spray tower comprises a tower body, a circulating water tank is fixedly arranged at the bottom of the tower body, a gas inlet end is fixedly arranged on the lower side wall of the tower body, a plurality of layers of pore plates are fixedly arranged in the tower body, and a filler layer is fixedly arranged above the pore plates. An air outlet end is fixedly arranged at the top end of the tower body, a filtering assembly is fixedly arranged in the circulating water tank and comprises an air inlet pipe, the top end of the air inlet pipe is fixedly connected with the top end of the tower body, and the bottom end of the air inlet pipe penetrates through the circulating water tank and is fixedly connected with a first cylinder; and a barrel II is slidably connected to the interior of the barrel I. Impurities in washing liquid are filtered through the filter screen, the cyclic utilization effect is achieved, the filter screen is backwashed through pushing force generated when filtered gas in the tower body flows, the impurities are carried and discharged through the blow-off pipe, and the automatic cleaning effect is achieved.

The invention relates to the technical field of ballast water treatment, in particular to a ballast water treatment-ultraviolet cooperative control method and system based on multi-parameter feedback, and the method comprises the steps: collecting turbidity, pressure gradient, ultraviolet light transmittance and biological activity data in real time through multiple types of sensors arranged at an inlet of a filter unit, the surface of a filter screen and an ultraviolet reactor; a composite control model fusing hydromechanics and optical characteristics is constructed, and closed-loop cooperation of aperture dynamic adjustment, ultraviolet dose compensation and directional backwashing is realized. The method is characterized in that an electrostriction filter screen is adopted to realize local aperture gradient control so as to balance flux and precision; an ultraviolet dose dynamic compensation algorithm is designed, and the irradiation efficiency is enhanced and improved in combination with a vortex flow field; and establishing a linkage optimization mechanism of the backwashing period and the service life of the equipment. A real ship verifies that the method can effectively reduce comprehensive energy consumption, can adapt to water quality fluctuation of different sea areas in the world, and meets the long-acting compliance requirement of the IMOD-2 standard.

The water conservancy construction drainage device comprises a slag collecting cylinder, an outer cylinder, an inner cylinder and a connecting cylinder, the inner cylinder is fixed to the top of the inner wall of the outer cylinder and coaxially arranged, the connecting cylinder is a circular truncated cone cavity and fixed to the bottom of the outer cylinder, the connecting cylinder is fixed to the top of the slag collecting cylinder, and spiral flow guide fins are arranged on the inner wall of the outer cylinder; a fixing ring is fixedly connected to the position, close to the top, of the surface of the outer cylinder, a water inlet is fixedly connected to the top of the fixing ring and is of a gradually-shrunk flow guide structure, one end of the water inlet extends into the outer cylinder in the tangential direction, and the bottom of the isolation cylinder communicates with a filter cylinder which is obliquely installed at the bottom of the isolation cylinder. One side in the filter cartridge is communicated with a sand collecting box, and a plurality of layers of self-adaptive filter screens are arranged in the filter cartridge. The drainage device for water conservancy construction relates to the technical field of water conservancy drainage, and can reduce blockage of the filter screen, improve the filtering effect, prevent fine silt from entering the pump body and ensure smooth drainage at the same time.

The invention relates to the technical field of fireproof valves, and discloses an air conditioner smoke exhaust fireproof valve with a smoke filtering function, which comprises a valve body, a filtering and cleaning assembly is arranged in the valve body, the filtering and cleaning assembly comprises a sliding block, the interior of the sliding block slides in the valve body, the sliding block is connected with the valve body through a bolt, an activated carbon plate is fixed in the sliding block, and the activated carbon plate is connected with the valve body through a bolt. A filter screen is fixed in the sliding block, a motor is fixed to the lower surface of the sliding block, a rotating rod is fixed to the driving end of the motor, a first protruding block is fixed to the outer wall of the rotating rod, and a second protruding block is fixed to the outer wall of the rotating rod; and the discharging assembly is arranged at the bottom end of the valve body. Through cooperation of internal structures of the filtering and cleaning assembly, a filter screen and an activated carbon plate are rapidly and effectively cleaned, meanwhile, a multi-section type cam and a telescopic rod component are designed, different amplitudes or beating strengths are provided, it is ensured that the vibration effect can evenly cover all areas of the filter screen, and local cleaning blind areas of the filter screen are reduced.

The invention relates to the technical field of sewage treatment equipment, and discloses environment-friendly equipment with an efficient sewage treatment function and a treatment method.The environment-friendly equipment comprises an outer cylinder, an impurity discharging assembly is fixedly installed at the top end of the outer cylinder in an embedded mode, and a driving assembly is fixedly installed on one side of the outer cylinder; according to the environment-friendly equipment with the efficient sewage treatment function and the treatment method, the conical filter screen is arranged at the top end of the interior of the outer cylinder, so that the flowing effect of water flow entering the conical filter screen is matched with the oblique angle arrangement of the water inlet, the water flow can form a rotational flow shape, and then centrifugal force is generated in the water flowing process; when water flows, impurities in the water are separated and thrown to the surface of the conical filter screen, the water is filtered and separated to the lower portion through the conical filter screen and flows to the bottom end through the lower drainage ring for secondary flow, and the impurity discharging assembly on the upper portion can rotate to scrape and clean the impurities filtered from the surface of the conical filter screen. And the use efficiency and effect of the device are greatly improved.

The invention relates to the field of wastewater treatment, in particular to a wastewater treatment method based on air flotation separation, which comprises a barrel, an inlet and outlet unit, a driving motor, a rotating rod, a multi-stage electric push rod, a partition plate and the like, the cylinder body is connected with an inlet and outlet unit for feeding and discharging water; the barrel is rotationally connected with a rotating rod, and an output shaft of the driving motor is fixedly connected with the rotating rod; a plurality of multi-stage electric push rods are fixedly connected to the bottom of the barrel; the telescopic parts of all the multi-stage electric push rods are fixedly connected with a partition plate jointly, and the partition plate is in sliding connection with the inner wall of the barrel. Wastewater penetrates through the filter screen from bottom to top, large deposited impurities in the wastewater are filtered, and the filtered large impurities can precipitate downwards under the action of self gravity and cannot be accumulated and attached to the surface of the filter screen, so that the content of the impurities attached to the surface of the filter screen is effectively reduced.

The invention discloses a PA6 nylon composite material for a high-temperature-resistant filter screen and a preparation method of the PA6 nylon composite material, and relates to the technical field of composite materials. The invention discloses a PA6 nylon composite material for a high-temperature-resistant filter screen. The nylon material is prepared from the following raw materials in parts by weight: 60 to 80 parts of modified PA6 nylon, 10 to 20 parts of modified glass fiber, 2 to 5 parts of montmorillonite, 0.3 to 0.8 part of antioxidant 1010, 0.2 to 0.6 part of stearic acid, 0.5 to 1.0 part of ethoxylated fatty amine, 1 to 3 parts of nano titanium dioxide, 1 to 3 parts of polytetrafluoroethylene micro powder, 3 to 8 parts of aluminum hydroxide, 0.5 to 1.5 parts of chitosan, 1 to 3 parts of hyperbranched polyamide and 0.5 to 1.5 parts of urea-formaldehyde resin coated epoxy resin microcapsules. And 0.3 to 0.8 part of sodium polyacrylate. The PA6 nylon composite material for the high-temperature-resistant filter screen has remarkable advantages. The material disclosed by the invention is high in mechanical property, good in thermal stability and stable in size at high temperature; the self-cleaning, antibacterial and antistatic functions are realized, and the filtering efficiency is high; chemical corrosion resistance, wear resistance and low water absorption are achieved; part of the raw materials can be recycled, the environmental protection concept is met, and the use requirement of the high-temperature-resistant filter screen in a complex environment can be met.

The invention discloses a tap water advanced oxidation reactor, and relates to the technical field of tap water advanced oxidation, the tap water advanced oxidation reactor comprises a reactor shell, an ultraviolet lamp tube is installed in the reactor shell, the outer surface of the ultraviolet lamp tube is fixedly sleeved with a quartz sleeve, and the bottom of the reactor shell is provided with an inclination angle adjusting mechanism. According to the advanced oxidation reactor for tap water, by arranging the cleaning mechanism, the backwashing mechanism and the driving mechanism, cleaning of the outer surface of the quartz sleeve is achieved, meanwhile, all-directional backwashing of filter screen holes is facilitated, impurities accumulated in the filter screen holes can be effectively removed, and smoothness of a water inlet is guaranteed; the invention discloses a low-pressure ultraviolet reactor, which solves the problems that the resistance of water flow passing through a pipeline filter screen is increased and the water inlet speed is slowed down due to the condition that the existing equipment is inconvenient to regularly clean a low-pressure ultraviolet lamp tube in the low-pressure ultraviolet reactor and the pipeline filter screen is inconvenient to regularly clean and the pores of the pipeline filter screen are blocked due to long-time use.

The invention relates to the technical field of printing and dyeing wastewater treatment equipment, and discloses an improved textile printing and dyeing wastewater treatment device and a use method thereof.The improved textile printing and dyeing wastewater treatment device comprises an equipment shell, and a plurality of supporting legs are fixedly connected to the bottom of the equipment shell. According to the textile wastewater treatment device, a second gear rotates to drive a plurality of second auxiliary rotating shafts on a conveying rotating shaft to rotate, the second auxiliary rotating shafts rotate to drive a transmission filter screen to rotate, and meanwhile, a stirring rod rotates to drive wastewater in an inner cylinder to rotate along the inner wall of the inner cylinder; flocculation groups in the wastewater are attached to the surface of the transmission filter screen, and at the moment, the transmission filter screen rotates to convey the flocculation groups in the inner cylinder into the flocculation cavity, so that on one hand, a large number of flocculation groups in the inner cylinder can be reduced in time, and on the other hand, the flocculation groups which are flocculated into clusters can be transferred into the flocculation cavity; therefore, the situation that the stirring force of the stirring rod is too strong, flocculation groups are broken, and impurity separation is not facilitated is prevented.

The invention belongs to the technical field of water conservancy gates, and discloses a water conservancy project flood prevention gate, method and system.The water conservancy project flood prevention gate comprises two barrier gate cement foundations, an anti-blocking mechanism and a cleaning mechanism are arranged on the two barrier gate cement foundations, and the anti-blocking mechanism comprises door bodies arranged on the sides, close to each other, of the two barrier gate cement foundations; an electric gate is slidably mounted on the inner wall of the front face of the gate body, anti-blocking assemblies are arranged at the tops of the two barrier gate cement foundations correspondingly, the electric gate is driven by a motor to ascend and descend, and automatic reciprocating motion of a cleaning strip on a sliding frame is achieved through meshing transmission of a tooth groove and a gear and the combined design of a connecting rod mechanism; according to the filter screen cleaning device, impurities attached to the filter screen are effectively removed, the filter screen is prevented from being blocked, the cleaning efficiency and the automation degree are greatly improved, frequent manual intervention is not needed, the labor intensity is reduced, meanwhile, potential risks caused by blocking of the filter screen are reduced, and it is guaranteed that water flows smoothly.

The invention relates to the technical field of explosion-proof permanent magnet motors, and discloses a low-voltage explosion-proof dust explosion-proof permanent magnet motor which comprises an explosion-proof shell, a front end cover and a rear end cover, the front end cover and the rear end cover are arranged on the two sides of the explosion-proof shell respectively, and the front end cover and the rear end cover are both attached to the explosion-proof shell. And a dustproof heat dissipation mechanism is arranged on the rear end cover. Through the design of a dustproof heat dissipation mechanism, a connecting rod drives fan blades and a U-shaped plate to rotate, after the fan blades rotate, external airflow is sucked from an air inlet hole to achieve the purpose of air cooling, before the airflow enters, a filter screen filters dust, a cleaning layer cleans away dust on the filter screen when passing through the filter screen, and when passing through a scraper blade, the dust on the filter screen is cleaned away by the cleaning layer; the scraper blade scrapes off dust on the cleaning layer, air-cooled gas is finally discharged through the exhaust hopper, the scraped-off dust can be quickly blown away, the situation that dust explosion is possibly caused by dust gathering is avoided, the application range is wider, and safety is higher.

The utility model provides an air purification filter performance detection and verification device, including a detection component, which includes a bottom plate, a mixing box, a first sealing sleeve, a feeding pipe, a blower, a groove, and a screw. The utility model places the air purification filter in the first sealing sleeve, starts the drive motor to drive the connecting block to move through the screw, and the connecting block drives the second sealing sleeve to move through the connecting box, and the air purification filter is fixed and sealed by the first sealing sleeve and the second sealing sleeve, and dust is added to the mixing box through the feeding pipe. The blower moves the first sealing sleeve of the dust in the mixing box to the inside of the air purification filter, and then sprays it into the dust storage box along the air outlet of the air purification filter through the second sealing sleeve, the connecting pipe and the hose. The dust sensor can give the concentration of the dust test to the connecting pipe, and transmit the data to the processor for processing. After processing, the data is displayed through the display screen, and the operation is simple and convenient.

The invention discloses an ionic liquid modified polyimide nanofiber film and an air purification filter screen based on the ionic liquid modified polyimide nanofiber film, and belongs to the technical field of film filtering materials. The preparation method comprises the following steps: firstly, selecting a diamine monomer and a dianhydride monomer to carry out low-temperature polycondensation reaction, and then carrying out solvent replacement and freeze drying to obtain polyamide acid powder; dissolving the powder to obtain a polyamide acid spinning solution, preparing an ionic liquid / polyamide acid spinning solution on the basis, and carrying out electrostatic spinning to obtain an ionic liquid / polyamide acid nanofiber membrane; and finally, carrying out high-temperature thermal imidization treatment to prepare the ionic liquid / polyimide nanofiber membrane. The method is simple and efficient, the problems of low resistance, high pressure drop and the like of a traditional nanofiber film in air filtration are solved, development and application of the nanofiber film in the field of air filtration are further widened, and the nanofiber film has important scientific significance and application value in the fields of high-temperature filtration, gas adsorption and the like.

The invention relates to the technical field of active noise reduction of ventilation pipelines, in particular to an active noise reduction ventilation device and method powered by solar energy. The active noise reduction assembly comprises a noise acquisition assembly, a noise reduction controller and a noise reduction microphone; the passive noise reduction assembly comprises a fan and blades; the control mechanism comprises a rotating shaft, a solar assembly and a sound insulation layer, the passive noise reduction state and the active noise reduction state of the fan are automatically adjusted through the rotating shaft according to the air inlet amount of the ventilation pipeline, and the control mechanism adapts to various application scenes, does not need manual switching, is simple and convenient, automatically adjusts the air inlet amount of the filter screen and assists in scraping dust filtered by the surface layer of the sound insulation layer. The motion state of the rotating shaft is automatically adjusted according to the air inlet amount and the wind noise, meanwhile, solar assembly power generation and wind power generation of the fan are switched, and normal work of the active noise reduction assembly is guaranteed.

The invention relates to a negative pressure dust collection type cutting machine, and belongs to the technical field of cutting machines, the negative pressure dust collection type cutting machine comprises a cutting machine workbench, a cutting module, a negative pressure dust collection module, an explosion-proof filtering system and a control system, the cutting module comprises a three-dimensional five-axis cutting mechanism and a high-power laser cutting head, and the high-power laser cutting head is loaded at the driving end of the three-dimensional five-axis cutting mechanism. The dust collector has an anti-explosion effect and an environment-friendly discharge function, and is provided with an anti-static pipeline, an inert gas injection device and a spark catcher aiming at flammable metal dust, so that the explosion risk can be remarkably reduced, multi-stage filtration is carried out by adopting the sintered metal filter cartridge, the HEPA filter screen and the like, discharged air meets the environment-friendly standard, the sewage problem of traditional wet dust collection is avoided, and the dust collector is suitable for popularization and application. And the metal plate is fixed through the evenly-distributed adsorption holes, plate deviation caused by vibration or scrap accumulation in the cutting process is prevented, and the precision of the cutting path is improved.

The utility model discloses a turbine flow meter, which belongs to the technical field of turbine flow meters and comprises a flow meter body, a flange plate is mounted at the end of the flow meter body, a preamplifier is fixedly connected to the upper end of the flow meter body, a magnetoelectric converter is mounted in the preamplifier, and the magnetoelectric converter is fixedly connected with the flange plate. A front guide piece and a rear guide piece are fixedly connected to the interior of the flow meter body, an impeller is connected between the front guide piece and the rear guide piece through a bearing, a filtering disc is installed in the flow meter body, and the upper end and the lower end of the filtering disc are connected with the interior of the flow meter body through auxiliary springs; a center rod is installed in the middle of the filtering disc, and a positioning rod is inserted into the center rod. According to the turbine flowmeter, after the filter screen is blocked, automatic cleaning of the filter screen can be achieved through fluid thrust, and meanwhile when the turbine flowmeter is connected with an external pipeline, the stability of connection between the pipeline and the turbine flowmeter is effectively guaranteed.

The invention discloses a venue building fire automatic early warning construction integrated device and a using method. The venue building fire automatic early warning construction integrated device comprises a mounting base, a shell is arranged at the lower end of the mounting base, an air inlet cover is arranged in the center of the lower end of the shell, a filter screen is fixedly mounted at the position, close to the bottom, of the surface of the air inlet cover, and the upper end of the air inlet cover penetrates into the shell. According to the automatic early warning construction integrated device for the venue building fire, through the scheme of the mounting base, the rotating column, a second gear, a third gear, a threaded rod, a threaded plate, a clamping plate, a connecting block, a clamping groove, a clamping block and a rotating button, an operator rotates the rotating button, and then the second gear can be meshed with the second gear to drive the threaded rod to rotate; the two threaded plates can horizontally move oppositely or oppositely, so that the clamping blocks on the clamping plates are driven to be tightly combined with or separated from the clamping grooves, the mounting and dismounting steps are simplified, and the complexity caused by a traditional screw fixing mode is avoided.

The invention relates to the technical field of eccentric butterfly valves, and discloses an eccentric butterfly valve with an anti-blocking function, which comprises an eccentric butterfly valve body, a shaft tube is fixedly arranged at the lower end of one side of the eccentric butterfly valve body, a driving motor is fixedly mounted at the lower end of the shaft tube, and a rotating shaft is fixedly arranged at the upper end of a rotating shaft of the driving motor; a valve clack is fixedly arranged at the position, close to the inner side of the eccentric butterfly valve, of the outer side of the rotating shaft, a filtering assembly is arranged in one side of the eccentric butterfly valve, a cleaning assembly is arranged at the position, close to the position between the shaft pipe and the filtering assembly, of the inner side and the outer side of the eccentric butterfly valve, and a supporting assembly is arranged at the position, corresponding to the filtering assembly, of the outer side of the eccentric butterfly valve. According to the eccentric butterfly valve with the anti-blocking function, impurities in a water source are filtered through the filter screen through overall cooperative use, the blocking situation is avoided, and the situation that the circular ring sleeve deviates under the impact of water flow is prevented.

The invention relates to the technical field of clothes treatment equipment, particularly provides a drying system, clothes treatment equipment and a control method, and aims to solve the problem that a filter screen of a drying system of existing clothes treatment equipment needs to be frequently cleaned by a user, and the use experience of the user is seriously influenced. In order to achieve the purpose, the drying system comprises an air duct and a filter screen arranged in the air duct, and further comprises an electric scraping plate arranged on the upstream of the filter screen and used for scraping soft flocks on the filter screen; and the spraying device is arranged in the air duct and is used for washing the soft flocks. According to the filter screen cleaning device, soft flocks on the filter screen are scraped and gathered through the electric scraping plate, then the soft flocks gathered through the electric scraping plate are flushed out through the spraying device, the soft flocks on the filter screen are cleaned, a user can complete cleaning of the filter screen without disassembling the filter screen, automatic cleaning of the filter screen is achieved, and the use experience of the user is improved.

The invention relates to the technical field of atmospheric pollution control, in particular to atmospheric environmental pollution control cleaning equipment which comprises an air inlet pipeline connected with a thermal oxidation furnace and further comprises a middle pipeline, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe and a gas outlet pipe, the middle pipeline is communicated with the gas inlet pipeline, and the diameter of the middle pipeline is larger than that of the gas inlet pipeline; the plurality of filter screens are movably arranged in the middle pipeline and are used for filtering gas entering the gas inlet pipeline; according to the atmospheric environment pollution abatement cleaning equipment, when a worker treats waste gas, gas entering the gas inlet pipeline can drive the automatic switching unit to accumulate force, and after a filter screen in the gas inlet pipeline is blocked, the automatic switching unit can automatically switch the waste gas in the gas inlet pipeline. And the automatic switching unit triggers and releases the force to drive the plurality of filter screens to automatically rotate and switch, so that the gas in the gas inlet pipeline can be filtered all the time, the heat accumulating type thermal oxidation furnace does not need to stop and wait, and the continuity of waste gas treatment is ensured.

The invention discloses an anti-clogging water supply and drainage filtering device, and relates to the technical field of water supply and drainage filtering, the anti-clogging water supply and drainage filtering device comprises a water supply and drainage pipeline, and the front end and one side of the water supply and drainage pipeline are respectively provided with a water inlet and a water outlet. The driving motor drives the supporting shaft A to enable the rolling brush to revolve, the rolling brush reversely rotates by means of the fluted disc A and the gear ring A, and dynamic shearing force is formed to efficiently strip impurities on the surface of the filter screen; the inclined push plate and the rolling brush guide the stripped impurities into the impurity guide piece through centrifugal force, and the spiral piece is combined for discharging, so that secondary blockage is avoided; the supporting shaft A is linked with the supporting shaft B through the belt pulley group, so that the filter screen reversely rotates at a constant speed, the relative speed of the rolling brush and the filter screen is multiplied, the impurity stripping effect is enhanced, loose impurities are thrown to the edge of the filter screen through centrifugal force, the accumulation risk of a central area is reduced, and self-cleaning of the filter screen, directional discharging of the impurities and dynamic prevention and control of the blocking risk are achieved through the mode. The continuous operation efficiency of the water supply and drainage filtering device is effectively improved, and maintenance cost and energy consumption are reduced.

The utility model discloses a ventilation top cover structure of a box-type substation, and relates to the related technical field of box-type substations. The device comprises a bottom plate, triangular side plates, top plates, air outlet channels and a fan, the triangular side plates are fixed to the two opposite side edges of the upper end of the bottom plate, the top plates are fixed to the inclined faces, in the same inclination direction, of the two triangular side plates, and second air outlets distributed at equal intervals are formed in each top plate in a penetrating mode; air outlet channels are fixed to the portions, outside the second air outlets, of the inclined face of the top plate, symmetrically-distributed ventilation openings are vertically formed in the bottom plate in a penetrating mode, and an inclined draught fan is arranged above each ventilation opening. By arranging the top plate, the bottom plate, the triangular side plates, the air outlet I, the air outlet II, the ventilation opening, the fan, the filter screen I, the filter screen II and the air outlet channel, the box-type substation top cover solves the problems that the box-type substation top cover is not provided with a ventilation structure, the heat dissipation effect is poor, enough weather resistance is needed during ventilation on the top cover, and the heat insulation effect of the top cover is poor.