13results about How to "Improve purging effect" patented technology

This invention discloses a testing device and method for liquid crystal display modules, relating to the field of liquid crystal display module testing technology. The device includes a base, a flipping bracket, a housing, and a testing platform. The testing platform is equipped with a bidirectional clamping device driven by a first motor for automatically clamping the liquid crystal display module for bending resistance testing, and an auxiliary bending mechanism to ensure uniform force distribution. The housing also houses a click-resistance testing mechanism, including an electric hammer, a pressure sensor, and a displacement sensor, for testing the screen's resistance to click pressure. After testing, debris is automatically removed by a multi-stage cleaning mechanism including a scraper and a spray nozzle. When the testing platform flips, the spray nozzle moves closer to the testing platform to improve the cleaning effect. This invention features a high degree of automation, integrating bending resistance testing and click testing, providing accurate testing and thorough cleaning, effectively improving the efficiency and safety of liquid crystal display module mechanical performance testing.

The utility model relates to an integrated membrane component which is characterized by comprising a membrane curtain, water collecting chambers are arranged at the upper end and the lower end of the membrane curtain, water producing channels communicated with the upper water collecting chamber and the lower water collecting chamber are arranged on the left side and the right side of the membrane curtain, membrane wires are arranged between the upper water collecting chamber and the lower water collecting chamber, and a clamping groove is formed in the bottom of the lower water collecting chamber; the top of the pulse aeration device is provided with a buckle matched with the clamping groove in the bottom of the lower water collection chamber, and the membrane curtain and the pulse aeration device are detachably connected through the clamping groove and the buckle.

The utility model belongs to the technical field of nitrogen purging devices, and particularly relates to a heatable nitrogen purging device which comprises a purging instrument main body, a control panel is fixedly mounted on one side of the purging instrument main body, gas delivery pipes are uniformly arranged at the top end of the purging instrument main body, the bottom ends of the gas delivery pipes are connected with moving pipes, and the moving pipes are connected with the control panel. The purging instrument comprises a purging instrument main body, the purging instrument main body is provided with a plurality of movable pipes, the inner walls of the movable pipes are provided with mitigation assemblies, the outer walls of the movable pipes are provided with lifting assemblies, the bottom ends of the movable pipes are fixedly provided with gas needles, and one side of the purging instrument main body is provided with a water bath mechanism. The flow limiting plates are mutually folded and abutted to form a narrow-mouth cylinder, so that the flow in the moving pipe is reduced, the stability and the reliability of purging work are improved, the purity of a sample is ensured, and the purging effect of the sample is improved.

The utility model discloses a sampling pipe reverse blowing device for measuring coke oven gas amount by a pore plate, which relates to the technical field of instrument maintenance and comprises the pore plate, a first pressure tapping pipeline, a second pressure tapping pipeline, a first three-way valve, a differential pressure transmitter, a first heat preservation heat tracing steam pipeline and a second heat preservation heat tracing steam pipeline, one end of the first pressure tapping pipeline is communicated with the coke oven gas pipeline at the front end of the pore plate, one end of the second pressure tapping pipeline is communicated with the coke oven gas pipeline at the rear end of the pore plate, and one ends, far away from the coke oven gas pipeline, of the first pressure tapping pipeline and the second pressure tapping pipeline are communicated with the differential pressure transmitter; the first heat preservation tracing steam pipeline is communicated with the first pressure tapping pipeline, and a fifth valve is arranged on the first heat preservation tracing steam pipeline; the flow measuring device has the advantages that the flow measuring device is simple in structure and convenient to use, and the flow measuring accuracy of the orifice plate can be effectively guaranteed.

The utility model discloses a kind of pneumatic plug-in plate type insulating doors installed in vertical air duct, comprising: insulating door box, one side is provided with the passage for medium circulation, insulating door box is equipped with door panel track inside;Door panel, install on door panel track, realize the isolation or circulation of medium by linear reciprocating movement on door panel track;Scavenging pipeline, along the inner wall of insulating door box circumferentially arrangement, and in radial four directions of distribution, open blowhole group, each group includes multiple blowhole towards door panel;And, dust collection hopper, fixedly connected in the bottom of insulating door box non-medium circulation side.This pneumatic plug-in plate type insulating door installed in vertical air duct, can realize the purpose of box complete blowing dust, effectively prevent pneumatic plug-in plate type insulating door jamming phenomenon occurs, reliable and practical, maintenance is convenient, with higher performance price ratio.

The utility model discloses a device for carrying out purging to wafer, including the casing, be equipped with purging chamber and gas collecting chamber in the casing, the top of purging chamber is equipped with purging shower nozzle, the bottom of purging chamber is hollowly provided, and the bracket for supporting wafer box is suspendedly arranged at the hollow place, the bracket is configured to make the wafer box of support and purging shower nozzle opposite arrangement, and the hollow place is communicated with gas collecting chamber, and the gas collecting chamber still has the exhaust pipe of intercommunication, the purging device that the application provides can replace artificial purging, and still can effectively improve wafer purging effect, has important technical value to subsequent improvement wafer yield and equipment utilization rate, guarantees personnel safety etc.

The utility model discloses a purging device for pickling a steel belt, which belongs to the technical field of purging after pickling, and comprises a purging bin arranged on one side of a pickling tank, a feeding port and a discharging port are respectively arranged on two sides of the purging bin, and the purging bin is provided with a discharge port. And the collecting mechanism comprises two high-pressure air pipes fixedly connected to the inner wall of the purging bin, the surfaces of the high-pressure air pipes communicate with a plurality of high-pressure spray heads, and a collecting box is arranged below the multiple high-pressure spray heads. Through the mode, the two high-pressure air pipes are provided with the multiple high-pressure nozzles for spraying air in different directions, when two faces of a steel belt subjected to acid pickling are blown, acid pickling liquid on the surfaces of the steel belt is blown to the two sides through air flow, then the acid pickling liquid falls into the collecting box, the acid pickling liquid is conveniently collected, follow-up treatment is facilitated, and the service life of the steel belt is prolonged. The heavy metal pollution of the pickling solution to the environment can be effectively reduced, and meanwhile, the waste of the pickling solution can be effectively reduced.

The utility model discloses a cleaning chamber for tearing gold and removing photoresist in the field of semiconductor processing equipment, which comprises a bottom plate and a cleaning bin arranged on the bottom plate, a cleaning disc for positioning and placing a silicon wafer is arranged in the cleaning bin, and the cleaning disc is controlled by a spindle motor at the bottom of the bottom plate to rotate. A two-fluid cleaning assembly, a deionized water cleaning assembly and a nitrogen purging assembly are arranged in the circumferential direction of the bottom of the cleaning bin and used for cleaning silicon wafers, a check ring installation base surrounding the cleaning disc is fixed to the bottom of the cleaning bin, and a liftable check ring piece is inserted in the check ring installation base in the circumferential direction. A central opening part for exposing the cleaning disc and a second passing opening are formed in the extending part of the top of the check ring piece, an FFU fan for blowing air to the inside is arranged at the top of the cleaning bin, and a first air outlet communicated with the outside is formed in the inner wall of the cleaning bin. Therefore, pollution caused by backflow of the aerial fog is prevented.

This invention belongs to the field of automotive manufacturing technology and discloses a hydrogen engine and its control method, as well as a vehicle. The engine includes a crankcase ventilation system, a hydrogen scavenging system, and an ECU. An air filter is installed in the engine intake pipe. The crankcase injection pipe is connected to the engine intake pipe and the crankcase. Both a low-load outlet branch and a high-load outlet branch are connected in parallel to the crankcase outlet pipe and the engine intake pipe. A vacuum pump is installed on the high-load outlet branch. Hydrogen concentration sensors are respectively installed in the crankcase, on the crankcase outlet pipe, and on the intake manifold. A scavenging pipe is equipped with a scavenging pump and is connected to the hydrogen rail and the intake manifold. The low-load outlet branch is connected to the scavenging pipe. The crankcase ventilation system and the hydrogen scavenging system are electrically connected to the ECU. This invention monitors the engine hydrogen concentration. The vacuum pump delivers hydrogen from the crankcase and pipes into the cylinders for combustion. When the engine is stopped, it effectively scavenges and burns the hydrogen in the hydrogen rail, improving engine safety.

The application discloses a kind of air seal structures for high-speed spindle, it is related to a sealing structure, including the first end cap and the second end cap by pin fastening connection;It further includes the oil film seal ring, support sleeve, dry gas seal assembly and purge seal ring that are sequentially set in the inside of first end cap;The inner ring of first end cap is provided with first annular air groove, second annular air groove and third annular air groove corresponding with oil film seal ring, dry gas seal assembly and purge seal ring respectively;First end cap is provided with main gas hole being communicated with first annular air groove, second annular air groove and third annular air groove respectively;Second end cap is pressed in the inside of first end cap with purge seal ring, dry gas seal assembly, support sleeve and oil film seal ring.The air seal structure for high-speed spindle provided by the application adopts oil film sealing, dry gas sealing and purge sealing three-stage sealing structure to realize the sealing treatment of spindle, guarantee the reliable and effective of overall sealing.

An anti-coking low-load stable combustion burner comprises a burner sleeve, and a pulverized coal burner is arranged in the burner sleeve. An air supply unit is arranged on the outer side of the combustor sleeve, the air supply unit comprises a cooling air sleeve arranged on the outer side of the combustor in a sleeving mode, a second-stage sleeve is further arranged on the inner side of the cooling air sleeve, and a middle interval sleeve is arranged between the cooling air sleeve and the second-stage sleeve. According to the combustor, the two stages of combustor sleeves are arranged, the cooling air sleeves are arranged on the outer sides of the combustor sleeves, and the combustor can adjust the wall temperature of the first-stage combustor sleeve and the wall temperature of the second-stage combustor sleeve through the change of the air volume in the cooling air sleeves according to the different coal quality of pulverized coal serving as fuel and the different operation working conditions of the combustor; therefore, sufficient combustion of the pulverized coal in the combustor sleeve is guaranteed, and the phenomenon of flameout or excessive combustion is avoided.

The utility model discloses a purging device and a perovskite line evaporator, the purging device comprises: a first purging assembly, the first purging assembly comprises a first purging pipe, both ends of the first purging pipe are connected with a feeding port, and the first purging pipe is provided with a plurality of first purging holes; the second purging assembly comprises a second purging pipe, the two ends of the second purging pipe are connected with a feeding port of the perovskite line evaporation machine, and a plurality of second purging holes are formed in the second purging pipe; the first purging hole and the second purging hole face away from the feeding cavity, and the absolute value of the included angle between the vertical normal vector of the first purging hole and the second purging hole and the plane of the feeding base plate is (0 degree, 90 degrees). According to the utility model, the substrate which is about to enter the feeding chamber is blown from the two sides of the feeding port, so that the substrate can be effectively and comprehensively cleaned in the feeding process, impurities such as dust and particles on the surface of the substrate are removed, and the cleanliness of evaporation and the product quality are improved.

The invention relates to the technical field of electric tools, in particular to a garden suction and blowing dual-purpose fan which comprises an electric tool body, an air pipe is detachably arranged on the electric tool body, a partition plate is arranged in the air pipe, the partition plate divides the interior of the air pipe into two independent air channels, namely, an air blowing channel and an air suction channel, and therefore the electric tool has an air suction mode and an air blowing mode; the air head unit is detachably arranged at the end part of the air pipe and comprises a deformable air head and an adjusting part for adjusting the state of the air head; the switching mechanism is used for controlling opening and closing of the air blowing channel and the air suction channel and comprises a switching part, an opening and closing part and a driving part, the switching part is arranged in the air pipe, and the opening and closing part is arranged in the electric tool; the adjusting part and the switching mechanism are arranged in a linkage mode, so that when the air suction mode is switched to, the switching mechanism opens the air suction channel and closes the air blowing channel, and meanwhile an air head flaring of the air head unit is driven to expand the air suction range. And switching to the blowing mode.