302 results about "Water block" patented technology

The invention relates to the technical field of pressure monitoring, in particular to an air pressure dynamic monitoring method and system for a pipeline water plugging airbag, and the method comprises the following steps: sampling an original pressure waveform in the airbag, extracting a discrete pressure sequence, determining an effective oscillation event, and extracting oscillation characteristic parameters, including oscillation dominant frequency and envelope attenuation slope, based on the effective oscillation event; calculating an equivalent leakage aperture based on the oscillation dominant frequency and the envelope attenuation slope, inputting the equivalent leakage aperture into a deformation state mapping table, and outputting a local deformation level of the airbag; and when the local deformation grade of the air bag exceeds the middle-high grade, a wrinkle eliminating mode is started, and a directional enhanced plugging instruction is triggered. According to the method, the equivalent leakage prediction formula jointly constructed based on the oscillation dominant frequency normalization inverse square term and the envelope attenuation rate term is introduced, the material correlation coefficient is obtained through fluid-structure coupling simulation and least square fitting, and the leakage trend from slight wrinkling to serious tearing can be continuously represented.

The embodiment of the invention provides a laminated assembly to be laminated, a laminated piece, a photovoltaic assembly and laminating equipment, and belongs to the technical field of photovoltaic assembly preparation. Wherein the laminated assembly to be laminated comprises an initial laminated assembly formed by stacking first packaging glass, a first packaging adhesive film, a battery string, a second packaging adhesive film and second packaging glass in sequence; the adhesive film filler strip and the initial laminated assembly comprise at least one first side edge; the adhesive film filler strip is arranged at the position, close to the first side edge, of the first packaging adhesive film and / or the second packaging adhesive film; at least one section of adhesive tape covers the first side edge. According to the laminated assembly to be laminated provided by the embodiment of the invention, the glue overflowing layer can be formed on the first side edge after lamination, a water blocking effect on the laminated piece is achieved, and even if the first side edge is not coated with an aluminum frame any more, the laminated piece can be prevented from being corroded by water vapor. According to the laminated piece manufactured by the laminated assembly, the first side edge does not need to be wrapped by an aluminum frame, so that dust accumulation is avoided.

The application relates to the technical field of power cables, in particular to a power cable with a distributed water blocking monitoring function and a preparation method thereof. The cable is provided with a multistage water blocking structure design of a conductor layer, an insulation layer and a sheath layer, and is combined with an embedded sensing monitoring system, early warning and accurate positioning of water seepage are realized, and the long-term reliability of the cable in a humid environment is remarkably improved.

The utility model discloses a detector test strip fixing module convenient for non-professionals to use, which relates to the technical field of fast detection detectors and comprises a base and an insertion piece. When the kit is used, the bottom end of a reagent strip is fixed in the fixing groove and is matched with the fixing block to fix the reagent strip, and during detection, the sampling rod punctures the thin sheet A between the solution cavity and the communication cavity from top to bottom, so that a diluent with a sample enters the communication cavity and reaches the other side of the insertion sheet through the through hole; due to the fact that the bottom of the reagent strip is fixed in the fixing groove and makes contact with the diluent passing through the through hole, detection is achieved, the diluent is blocked below the first water blocking baffle and does not make direct contact with other parts of the reagent strip, and the purpose that the diluent gradually seeps to the top of the reagent strip is achieved; and therefore, the operation convenience and the accuracy of a detection result during detection by a non-professional user are further improved.

The utility model provides a spliced portable water guide device. The spliced portable water guide device comprises a water retaining device and a flow guide device, the water retaining device is arranged at a culvert water inlet and comprises a plurality of first water retaining sections and two second water retaining sections. The multiple first water retaining sections and the two second water retaining sections are spliced into a strip-shaped structure, and the multiple first water retaining sections are located between the two second water retaining sections; the cross section of the first water retaining section and the cross section of the second water retaining section are each of an L-shaped structure. A water guide opening is formed in the face, close to the culvert water inlet, of the first water retaining section, and the water guide opening is in threaded connection with the flow guide device, so that the problem that the construction efficiency is affected due to the fact that the flowing water flow guide difficulty of a lengthened culvert is large is solved.

A water block pressure regulation structure includes a top cover internally defining a water-out compartment, a pressure reduction chamber and a water-in compartment; a heat absorbing member; and a partitioning plate superposed on the heat absorbing member to define a heat exchange chamber between them, and including a buffer space communicable with the heat exchange chamber via first and second bores formed on the partitioning plate. The first and second bores are openable and closeable by first and second valves fitted therein, respectively. The water-in and water-out compartments communicate with the heat exchange chamber via first and second penetrating openings on the partitioning plate. When the heat exchange chamber internally has high pressure or insufficient cooling liquid, the first and second valves automatically open to communicate the buffer space with the heat exchange chamber, and accordingly regulate the pressure and cooling liquid in the heat exchange chamber.

The utility model discloses an air conditioning unit end portion water retaining assembly and an air conditioning unit, the air conditioning unit end portion water retaining assembly comprises a supporting beam, a first water retaining plate and a second water retaining plate, one side face of the first water retaining plate is in contact with the upper surface of the supporting beam, the first water retaining plate is fixed on the supporting beam, and the first water retaining plate is located above the supporting beam; the second water baffle is connected to the outer side face of the supporting beam, the inner side face of the second water baffle makes contact with the outer side face of the supporting beam, and the side face, connected to one side of the supporting beam, of the second water baffle is downwards staggered relative to the upper surface of the supporting beam. When spraying water leaks from the seam between the first water baffle and the supporting beam, the leaked water flows downwards along the outer side face of the supporting beam and then flows to the corresponding side face of the second water baffle, and therefore the water is prevented from entering the inner side face of the second water baffle. And the joints of the first water baffle and the second water baffle and the supporting beam are staggered, so that the position of water leakage can be conveniently found, and the maintenance efficiency is further improved.

The invention discloses an image measurement nozzle spraying performance test device, which comprises a test bed, a nozzle, a test solution circulation system, a liquid pump test system and a liquid collection system, and is characterized in that the liquid collection system comprises a plurality of measuring cylinders arranged in a rectangular array, the lower ends of the measuring cylinders are connected with supporting rings, and the lower parts of the supporting rings are fixedly connected with weighing sensors; a water baffle capable of moving up and down is arranged in the measuring cylinder, and a water diversion seat is arranged at the lower end of the water baffle; a plurality of water retaining pieces are connected to the water diversion base, and the upper ends of the water retaining pieces penetrate through the side wall of the water baffle and extend to the upper portion; the output end of the water diversion base is fixedly connected with a conveying pipe. In the using process of the device, a water source in the measuring cylinder can be rapidly discharged, meanwhile, the situation that the water source cannot be completely discharged is avoided, the measuring efficiency is further improved, the using requirements of users are met, and the practicability of the device is indirectly improved.

The invention relates to the technical field of production equipment, and provides a water retaining device of a rough descaling machine and the rough descaling machine. The water retaining device comprises a door opening type water retaining box, a cross beam and a key-shaped steel bar; the cross beam is arranged at the upper end in the water retaining tank, and the extending direction of the cross beam is perpendicular to the extending direction and the vertical direction of a door opening of the water retaining tank. The plurality of key-shaped steel bars are hung on the cross beam through the circular ring structures at the upper parts and can swing around the cross beam; the total width of the plurality of key-shaped steel bars is greater than the total width of the descaling jet; one end of the water retaining box is fixedly connected with an inlet of a box body of a rough descaling machine, the other end of the water retaining box corresponds to an outlet of a heating furnace, and the lower end of the key-shaped steel bar extends out of the water retaining box and is in contact with the upper surface of a slab to form a water retaining barrier. Water splashed outwards when the descaling machine works can be well blocked, equipment such as a roller way and a transmission part at the front end of the rough descaling machine can be effectively protected, the operation stability of a hot continuous rolling production line is improved, and the service life of the equipment is prolonged.

A method for selecting a booster pump for circulating cooling water of a bypass piping system is provided in the disclosure, which includes: acquiring booster pump data of the booster pump for the circulating cooling water of the bypass piping system, and constructing and updating a database for selecting the booster pump for the circulating cooling water of the bypass piping system; performing primary booster pump selection according to final user's selection requirements and constructing a booster pump preselection set; calculating water resistance of the circulating cooling water in the bypass piping system, determining a selection score according to user's selection evaluation standard for performing secondary booster pump selection, and determining a finally selected booster pump for the circulating cooling water of the bypass piping system; and visually outputting and displaying performance parameters, performance curves and installation data graphs.

The water conservancy valve body based on wireless control comprises a wireless control box and a pressure control valve body, a hydraulic cavity and a normally-closed cavity which are communicated with each other are arranged in the pressure control valve body, the wireless control box is installed on one side of the pressure control valve body, a solar panel is installed on the top of the pressure control valve body, and the solar panel is installed on the other side of the pressure control valve body. A water blocking plug and a pressing plug are arranged in the normally-closed cavity in a plugged mode, the water blocking plug and the pressing plug are connected together through a plug connecting rod, a reset spring is arranged between the side face, away from the hydraulic cavity, of the water blocking plug and the cavity wall of the normally-closed cavity in a pressed mode, and a drainage hole and a water inlet hole are formed in the positions, on the two sides of the water blocking plug, of the normally-closed cavity respectively. A water drainage hole and a pressurizing hole are formed in the cavity walls of the two sides of the hydraulic cavity correspondingly, and a two-position three-way electromagnetic valve is installed on the water inlet end side of the water inlet hole. The utility model has the beneficial effects of low energy consumption, compact structure, small volume, long-time low-power-consumption operation and long service life.

The utility model relates to the field of power supply waterproof, especially an outdoor power supply waterproof device. The technical problem is that the existing outdoor power supply is inconvenient to protect the socket when charging, moisture can easily pollute the power supply socket when charging, and rainwater can easily enter the dust screen, resulting in poor waterproof performance of the power supply when charging and in rainy days. An outdoor power supply waterproof device, comprising a protective shell, a socket fixed to the protective shell, two dust screens fixed to the protective shell, a top cover fixed to the top of the protective shell, and a water blocking mechanism arranged on the protective shell. The user straightens the charging cord and places it in the waterproof cover gap, presses the sealing plate to contact the waterproof cover, tightens the buckle to make the sealing plate adhere to the waterproof cover, the air pump inflates the sealing air bag, and the sealing air bag expands to block the gap between the waterproof cover gap and the sealing plate. It is convenient to protect the socket when charging, reduces the possibility of moisture polluting the power supply socket when charging, and improves the waterproof performance of the power supply when charging.

The application is an adjustable pressure reducing angle valve, which comprises a valve body, a water inlet, a water outlet, a valve cap and a screw rod, and a movable core and a fixed core are arranged between the water inlet and the water outlet; the movable core is axially movably sleeved outside the fixed core, a second water passing hole communicating with the water outlet is arranged on the peripheral wall of the movable core, and a reset member is arranged between the end of the movable core and the screw rod; the fixed core is fixed in the center of a water inlet plate of the water inlet, a first water passing hole communicating with the water inlet is arranged on the water inlet plate, and a water blocking boss is arranged on the peripheral wall of the fixed core; the screw rod and the corresponding one-way pull rod are arranged, so that the adjusting function can be realized, the manual closing ability can be achieved under the condition of low water pressure, the fixed core plays the roles of closing and limiting the flow of the movable core and reducing the influence of the water flow of the water inlet on the movable core, the response speed and recovery speed of the pressure reducing process are improved, the accuracy of the pressure reducing efficiency is improved, and the structure of the angle valve is more compact as a whole.

The utility model relates to the technical field of PCB board production discloses a kind of PCB board water blocking mechanism.The PCB board water blocking mechanism includes water box and first presser component;Water box is used to hold the medicinal liquor of washing PCB board;First presser component includes two first pressers, and first presser is rotatably arranged, and at least one first presser can produce elastic deformation to be covered with PCB board and be attached when PCB board is conveyed to between two first pressers along X axis, to seal and resist the medicinal liquor on PCB board and backflow to water box inside.The PCB board water blocking mechanism can guarantee the close covering attachment between first presser and PCB board by the elastic deformation of at least one first presser, so that the first presser and PCB board form sealing structure to seal and resist the medicinal liquor on PCB board, effectively improve the waterproof performance of water box, do not need to frequently supplement medicinal liquor in water box, can save energy, and can guarantee the medicinal washing effect of medicinal liquor to PCB board.

The utility model discloses a waterproof insulating joint, which comprises a first connector, a second connector and an insulating connecting piece for connecting the first connector and the second connector, and the insulating connecting piece is provided with a first channel for conducting the first connector and the second connector. The first channel is internally provided with a one-way valve structure capable of limiting reverse flow of fluid, and the insulating connecting piece can limit direct passing of current, so that the occurrence of electric shock accidents is reduced, and the use safety is improved; a one-way valve structure capable of preventing fluid from flowing back is arranged in the first channel, and when the waterproof insulating joint is installed on the water heater, potential safety hazards or equipment damage caused by hot water flowing back can be avoided. When the waterproof insulating joint is mounted in front of or behind the gas meter, water can be prevented from flowing backwards into the gas pipe, so that water blockage in the gas pipe is avoided, and the water is also prevented from being mixed into the gas to influence the combustion efficiency of the gas and cause unstable flame or flameout.

This invention discloses a CPU cold head, including a CPU heatsink plate with a water inlet box. A water inlet box cover is located at the bottom opening of the water inlet box. A central boss extends downwards from the top wall of the water inlet box, with a water outlet hole. An annular water groove surrounds the central boss, communicating with the water inlet hole of the CPU cold head. The bottom of the central boss contacts the top of the water inlet box cover. A row of recessed grooves, communicating with the annular water groove and the water outlet hole, is formed on the top surface of the water inlet box cover. The central boss, annular water groove, and recessed grooves work together to form a circulating water channel. The circulating water passing through this channel can fully absorb heat from the CPU before being discharged, thus improving the heat conduction capacity of the CPU cold head.

The application discloses a water blocking facility at an entrance and exit of an urban underground garage, and belongs to the field of underground garage flood control facilities, which comprises a foundation pit, a sealing partition plate is arranged in the foundation pit, the sealing partition plate divides the foundation pit into an air bag cavity and a drainage cavity, a rubber air bag is sealingly arranged at the top of the air bag cavity, a pneumatic jacking mechanism is fixedly arranged at the bottom of the air bag cavity, the air bag cavity and the pneumatic jacking mechanism are connected with an external air pump, a rain leakage well cover is detachably arranged at the top of the drainage cavity, and the bottom of the drainage cavity is connected with a sewer pipe. In rainy days, the cover can be manually removed, the air bag cavity and the pneumatic jacking mechanism are inflated by the external air pump to form a fence, the pneumatic jacking mechanism also has a certain damping effect, the normal entry and exit of vehicles are not affected when the rubber air bag works, and the application is convenient and fast.

The utility model relates to a water retaining jig, in particular to a scratch-proof water retaining jig for multi-strip plate electroplating, which comprises an electroplating jig, an adjusting plate is arranged on the side surface of the electroplating jig in a sliding manner, a positioning shaft is rotatably arranged on the adjusting plate, a silica gel strip is rotatably arranged on the positioning shaft, the silica gel strip is arranged on one side of the adjusting plate, and the adjusting plate is arranged on the other side of the adjusting plate. An adjusting mechanism is arranged between the silica gel strip and the electroplating jig; the adjusting mechanism comprises an adjusting rod and a pressure spring, the adjusting rod is arranged on the back face of the silica gel strip, the pressure spring and the adjusting rod are used for adjusting the pressure and the distance between the silica gel strip and the multi-material-belt plate, the pressure spring is initially in a pre-pressing state, and when the pressure of the pressure spring is increased, the adjusting rod extrudes the silica gel strip. According to the water retaining jig, firstly, the silica gel strip is arranged and can rotate on the positioning shaft to adjust the water level height of electrolyte in the inner groove of the water retaining jig and the contact strength between the multiple material belt plates so as to conduct water retaining and water scraping.

The electroplating equipment comprises a plurality of electroplating baths and a water blocking device, a plurality of electroplating inner baths and an electrolytic bath are arranged in the electroplating baths, feeding ports are formed in one sides of the electroplating inner baths respectively, the electroplating inner baths and the electrolytic bath are located on the same horizontal plane, and a driving device is arranged on the side face of each electroplating inner bath. The driving device is connected with the conveying rollers and the conductive rollers, the conveying rollers and the conductive rollers are arranged in pairs, the conveying rollers are arranged in the electrolysis inner tanks, the water blocking device and the conductive rollers are arranged between the adjacent electrolysis inner tanks, and anode titanium meshes are symmetrically arranged on the upper side and the lower side of the electroplating inner tank and are arranged on the upper side and the lower side of the conveying rollers at equal intervals. Upper and lower layers of anodes are adopted, so that double-sided electroplating can be performed; groove type soaking is adopted, an electroplating sheet is in direct contact with electroplating liquid, ion supplementation is fast, and the concentration difference caused by electroplating precipitation can be supplemented in time; the anode titanium mesh directly faces the electroplating sheet, the electric field directly acts on the electroplating sheet, and the electric power utilization rate is high.

The invention belongs to the technical field of cable branch boxes, and discloses a cable branch box and a heat dissipation method of the cable branch box. According to the cable branch box, the heat dissipation window set is arranged on the side wall of the box body and / or the rear plate of the box body, and the heat dissipation window set comprises the dustproof net, the fan assembly and the water retaining piece which are sequentially installed from outside to inside, so that the protection grade of the cable branch box is ensured while the heat dissipation effect is ensured; the fan assembly is provided with a shutter capable of being opened and closed through rotation and a cooling fan, the cooling fan is responsible for generating air flow, the shutter is responsible for controlling opening and closing of a window, and the shutter comprises a base, a shutter piece set and a shutter frame body which are sequentially installed. The two ends of a cylindrical sliding rod arranged on the shutter piece set are connected with the shutter frame and the base in a matched mode respectively, the fan assembly further comprises a control module, and the control module responds to the internal temperature to control starting and stopping of the cooling fan and control opening and closing of the shutter so as to achieve efficient heat dissipation.

The utility model discloses double-pump-station parallel connection pressure adjusting equipment which comprises a parallel connection pressure adjusting device, a converging guide pipe is connected below the parallel connection pressure adjusting device, a pipe frame is installed at one end of the converging guide pipe, and a supporting frame is installed at the other end of the converging guide pipe. A plurality of pressure regulators are arranged in the parallel pressure regulating device, a plurality of parallel frames are connected among the plurality of pressure regulators, a plurality of lock bolt lugs are fixed on the outer walls of the parallel frames, lock bolts are connected in the lock bolt lugs, and a jacking block is fixed below one of the parallel frames. The parallel pressure adjusting device is installed on a convergence guide pipe behind the double pump stations, the pressure regulators are arranged in front of water catchment points respectively, pressure metering is carried out through the sensors on the pressure sensing rods, the pressure of water conveying pipes of the double pump stations is recognized, and therefore the electric control sensing push rods are triggered to automatically adjust the pressure in front of the water catchment points. The water blocking phenomenon of one pump station is avoided, meanwhile, the double pump stations are indirectly located at the highest effectiveness point, and therefore energy consumption of the pump stations is saved.

The invention discloses a detection device and method for testing air tightness of a filter, and belongs to the technical field of filter detection. The equipment comprises an equipment frame, a workbench, a water tank, a clamping device, a gas pipeline box and a control system. The workbench is arranged in the water tank and can move up and down through the servo driving mechanism, and water passing holes are formed in the surface of the workbench to reduce water resistance; the clamping device is composed of an adjustable triangular base, a filter supporting plate, a mandrel assembly and a rapid clamp, rapid adjustment can be achieved according to the specifications of the filters, and universal clamping of the filters of multiple models is achieved. A through air channel and a multi-stage sealing structure are arranged in the mandrel assembly, reliable sealing and automatic clamping can be kept under high-pressure detection, and a stable air source is conveyed to all stations through a control pipeline composed of a one-way valve, a pressure regulating valve, a pneumatic ball valve and the like. The system is provided with a PLC control unit and an alarm signal lamp, and automatic pressurization, pressure maintaining, pressure relief, alarm and safety interlocking control can be achieved.

There are provided an adapter apparatus and a semiconductor process device using the same. The adapter apparatus (300) is configured to connect a water resistance meter (200) to a process tank (100), and includes a housing part (310) and a blocking part (320), the housing part is provided with a first inner cavity (313), and the first inner cavity is configured to be respectively connected with the process tank and the water resistance meter; the blocking part is movably disposed in the first inner cavity to be switched between a first position and a second position; in a case where the blocking part is at the first position, the blocking part blocks the first inner cavity; and in a case where the blocking part is at the second position, the process tank is connected with the water resistance meter through the first inner cavity. The adapter apparatus can avoid damage to the water resistance meter, and obviates the need for an operator to detach and mount the water resistance meter, thereby overcoming the problems of complex operation and low equipment productivity.

The application belongs to the field of photovoltaic industry, and discloses a chain type high-speed silicon wafer cleaning system and a use method thereof. A feeding device of the cleaning system moves the to-be-cleaned silicon wafer through a feeding robot, and after being positioned by a guide strip, the silicon wafer is conveyed to a cleaning mechanism. The to-be-cleaned silicon wafer is conveyed by upper and lower conveying rollers, sequentially passes through the cleaning mechanism, an oxidation mechanism, a rinsing mechanism and a drying mechanism to realize cleaning-oxidation-rinsing-drying. A water blocking assembly is arranged to block the interference between mechanisms. A main transmission hexagonal shaft is used to drive the upper and lower conveying rollers to realize stable transmission. The upper conveying roller in the upper layer of the upper and lower conveying rollers is floatingly arranged to realize stable conveying of the silicon wafer. After drying, the silicon wafer is conveyed to a discharging device, and the broken pieces and waste pieces are removed through a discharging waste roller. The qualified silicon wafer is sent to the next process. The cleaning effect is enhanced, the broken piece rate is reduced, the qualified rate is improved, and the overall cost of the equipment is reduced.

The application discloses a boiler flue gas exhaust heat recovery system for a thermal power plant, which comprises an outer cylinder shell, sealing rings fixed at two ends of the outer cylinder shell respectively, and a left sealing ring communicated with an inlet flue pipe and a right sealing ring communicated with an exhaust pipe; a control end seat used for sealing assembly with the sealing rings, which comprises a hole plate used for placing fixation, a fixed disc fixed on the hole plate, a plurality of assembly holes four circumferentially distributed on the fixed disc, a sealing disc ring fixed on an inner disc side of the fixed disc, assembly holes two on the sealing disc ring corresponding to the assembly holes four, a water blocking sealing paste ring rotatably connected to the inner disc side of the sealing disc ring, assembly holes one on the water blocking sealing paste ring corresponding to the assembly holes two, and heat exchange water pipes communicated between corresponding assembly holes one on the left and right sides, wherein a group of corresponding assembly holes four on the left and right sides are respectively communicated with blowdown pipes; and a control system installed on the control end seat and used for switching the heat exchange water pipes communicated with the blowdown pipes.

The application relates to the field of hydraulic engineering and particularly relates to a modularized and quickly-assembled assembly type flood control sub-dyke for emergency flood control, which comprises a triangular hinged frame, the inside of the triangular hinged frame is provided with an assembly cross beam, the triangular hinged frame is used for supporting flood control plates and can be folded and stored to reduce the transportation volume; the two ends of the assembly cross beam are fixedly provided with splicing sets, the splicing sets are used for quickly docking with the assembly cross beams of other flood control sub-dykes to realize the modularized assembly of multiple sub-dykes; a water blocking sub-board is fixedly installed on the outside of the assembly cross beam, the height of the water blocking sub-board is matched with the height of the triangular hinged frame, and the water blocking sub-board is used for blocking floodwater; a folding and unfolding mechanism is arranged at the central part of the bottom of the triangular hinged frame, the modularized and quickly-assembled assembly type flood control sub-dyke for emergency flood control can orderly store each component in a storage state, and the damage risk in the transportation and storage process is reduced.

The application discloses a conical self-centering filter structure and relates to the field of filter equipment, which comprises a water passing pipe for being connected with an external pipeline, a filter screen arranged in the water passing pipe, a detachable fixing pipe, a mounting pipe of the water passing pipe for mounting the fixing pipe, a water draining hole of the fixing pipe communicated with the water passing pipe and opened along the axial direction, a plug for plugging the water draining hole, a water blocking plate fixedly connected in the water passing pipe, the water blocking plate separating the water passing pipe into a water inlet end and a water outlet end which are isolated from each other, and a water passing hole of the water blocking plate for communicating the water inlet end and the water outlet end, wherein the filter screen is annular, an elastic piece one is arranged between the fixing pipe and the filter screen, the elastic piece one pushes the filter screen to be close to the water blocking plate, the filter screen shields the water passing hole, a gap between the mounting pipe and the filter screen forms a deposition cavity, the fixing ring is located in the deposition cavity, and the water draining hole is communicated with the deposition cavity. The application has the effect that impurities filtered in the pipeline can be conveniently cleaned.