50results about How to "Increase the frequency of maintenance" patented technology

The invention discloses a range hood with a personalized air purifier. The range hood comprises a shell and a control system. A self-balance type air inlet is formed in the front side of a top plate of the shell. A double-layer shutter air supply outlet is formed in a front face plate of the shell. A controller and a PM2.5 mass concentration sensor are installed on the front face plate of the shell. In the flowing direction, from the top of a kitchen to a human body breathing area, of primary air, a combined multilayer filter and a silent cross-flow fan are sequentially installed in the air purifier, and an air outlet is formed in the exhaust direction of the silent cross-flow fan. Due to the adoption of the device, it is ensured that the fan is stable and low in noise in the running environment, detection and overall control of the air quality in a human body head breathing area are achieved, harm of cooking fume particles and gas to human bodies is reduced, and meanwhile overflow of the cooking fume can be reduced through a lateral lower air supply curtain.

A pneumatic actuator air flow control system includes a pneumatic rotary actuator (PRA) and a solenoid air flow control valve (SAFCV). The PRA contains an air reservoir and a vane housing allowing pressurized air to rotate an air-driven vane. The SAFCV includes a flow control valve body (FCVB), a pilot solenoid valve (PSV) and a switch system, wherein the FCVB and the PRA can be connected to direct the pressurized air into the air reservoir, and the PSV is used to control the pressurized air in and out of the PRA to change the vane's rotation movement in the vane housing. Additionally, the switch system allows users to switch between a double-acting and fail-safe operation. When there is no pressurized air and / or electrical power and if an emergent need to open or close the valve, a manual override in the PSV can be used without further installation of a declutchable manual gear operator or external piping when there is no pressurized air and / or electrical power.

The invention relates to the technical field of vanadium-nitrogen alloy, and provides a flame-proof gas energy-saving double-push-plate kiln, a vanadium-nitrogen alloy device and a preparation method. The flame-proof gas energy-saving double-push-plate kiln comprises a kiln body. Installation holes are distributed in the front side of the upper portion of the high-temperature section of the kiln body in the axial direction. Installation holes are distributed in the rear side of the upper portion of the high-temperature section of the kiln body in the axial direction. Burners are fixedly installed at the installation holes. The gas outlet ends of the burners are located in preheating passageways located at the corresponding portions of the high-temperature section of the kiln body. A gas branch pipe and a combustion-supporting air branch pipe are fixedly installed at the gas inlet end of each burner. By means of the flame-proof gas energy-saving double-push-plate kiln, vanadium-nitrogen alloy is produced through a heat source in a gas heating mode instead of a traditional silicon-molybdenum rod electric heating mode, the first preheating section of the kiln body, the second preheating section of the kiln body and a drying kiln are preheated by smoke generated through gas heating, smoke is sufficiently recycled, the production cost is greatly reduced, kiln blockage accidents are eradicated, the overhaul period and the service life of the kiln body are greatly prolonged, environment pollution is reduced, and the work efficiency is improved.

A system and method for providing access to co-located operations data for a number of electronic display assemblies is provided. A network monitoring center electronically communicates with a number of electronic display assemblies, each comprising sensors measuring operations data, which is stored at a database but electronically partitioned by client identifier. A client identifier is assigned to the operations data. Upon receipt of an operations data request, operations data associated with a client identifier matching a received identifier is summarized in a report which is transmitted to a client device which sent the request.

A hydraulic excavator includes an engine, a revolving frame supporting the engine, a vehicle body frame, a diesel particulate filter device, and a first connecting pipe. The vehicle body frame is disposed on the revolving frame. The diesel particulate filter device and the selective catalytic reduction device are supported by the vehicle body frame. The first connecting pipe connects the engine and the diesel particulate filter device. The first connecting pipe includes a bellows part that is extendable in at least a portion thereof. The diesel particulate filter device is located further away from the engine than the selective catalytic reduction device. The first connecting pipe passes below the selective catalytic reduction device and is connected to the diesel particulate filter device. A connecting portion for the diesel particulate filter device and the first connecting pipe is located below the diesel particulate filter device.

A hydraulic excavator includes an engine, a revolving frame supporting the engine, a vehicle body frame, a diesel particulate filter device, and a first connecting pipe. The vehicle body frame is disposed on the revolving frame. The diesel particulate filter device and the selective catalytic reduction device are supported by the vehicle body frame. The first connecting pipe connects the engine and the diesel particulate filter device. The first connecting pipe includes a bellows part that is extendable in at least a portion thereof. The diesel particulate filter device is located further away from the engine than the selective catalytic reduction device. The first connecting pipe passes below the selective catalytic reduction device and is connected to the diesel particulate filter device. A connecting portion for the diesel particulate filter device and the first connecting pipe is located below the diesel particulate filter device.

This electroformed metal mask for vapor deposition comprises hole inner peripheral surfaces (321S) defining mask holes (321H) each of which has a frustum shape and has a large opening (322F) as the bottom portion thereof. In a cross-section perpendicular to the front surface: a slope angle (theta) between the rear surface and a virtual straight line Li connecting the large opening (322F) to a small opening (322B) is 50-85 DEG; and the distance between the front surface and the rear surface is represented by a thickness (H), the distance, on a reference plane (Pi) which is parallel to the rearsurface and which is disposed at a distance of (2 / 3)*H from the rear surface, between the hole inner peripheral surface (321S) and the virtual straight line is represented by a recessed amount A, and0<[(3*tan[theta])*A] / H<=0.3 is satisfied.

A system and method for providing access to co-located operations data for a number of electronic display assemblies is provided. A network monitoring center electronically communicates with a number of electronic display assemblies, each comprising sensors measuring operations data, which is stored at a database but electronically partitioned by client identifier. A client identifier is assigned to the operations data. Upon receipt of an operations data request, operations data associated with a client identifier matching a received identifier is summarized in a report which is transmitted to a client device which sent the request.

The invention discloses a manufacturing process of a shielding cover frame, which comprises the following steps: S1, printing marks on a raw material tape entering a mold, where the marks are recesses or protrusions arranged at intervals, to prepare a blank; S2, Holes are made at the edges of the blank that need to be stretched and bent. Also disclosed is a shielding cover frame, which includes a body, the surface of the body is provided with a number of imprinted points, and the imprinted points are depressions or protrusions, and the stretched and bent edges of the surface are provided with punching holes. The shielding cover frame and the manufacturing process thereof of the present invention make the flatness of the product more stable, and can effectively reduce the maintenance cost of the mould.

A method of manufacturing a semiconductor device includes: forming a resist separation layer on a first main surface of a SiC substrate; applying a resist retaining a shape at a temperature of 200° C. or higher on the resist separation layer; patterning the resist by photolithography; heating a stage an which the SiC substrate is placed to a temperature of 200° C. or higher by a temperature control function, and dry-etching the SiC substrate by using the patterned resist as a mask to form a via hole; and after forming the via hole, removing the resist separation layer to separate the resist from the SiC substrate.

The present invention provides enamelware and a glaze improving the bondability between the steel substrate and enamel layer and superior in resistance to dew point corrosion by sulfuric acid and hydrochloric acid, that is, a steel substrate of a composition containing, by mass %, Cu: 0.05 to 0.5%, Si: 0.1 to 2.0%, Mn: 0.05 to 2.0%, P: 0.005 to 0.10%, and S: 0.005 to 0.1%, restricting C to C: 0.20% or less, and comprising a balance of Fe and unavoidable impurities on the surface of which an enamel layer of a thickness of 50 to 700 μm is provided. At that time, the content of Co oxides in the enamel layer is made, converted to Co, 0.01 to 10% and / or the content of Ni oxides is made, converted to Ni, 0.05 to 20% or the total content of Ni in the steel substrate and enamel layer is made 0.005 to 4.5% with respect to the total mass of the enamelware and / or the total content of Co is made 0.008 to 4.0% with respect to the total mass of the enamelware.

The invention belongs to the technical field of blow molding of drinking water buckets, and discloses a repeated blow molding transformation device of a blow molding system of a blow molding machine and a control method thereof.The repeated blow molding transformation device of the blow molding system of the blow molding machine is provided with a circulation time relay, the time relay is connected with a third Ka intermediate relay, and the third Ka intermediate relay is connected with a second Ka intermediate relay; the second Ka intermediate relay is connected with the first Ka intermediate relay. The second Ka intermediate relay is connected through an electromagnetic valve A, the electromagnetic valve A is connected with an electromagnetic valve B, and the electromagnetic valve B is connected with the first Ka intermediate relay; and the first Ka intermediate relay, the second Ka intermediate relay, the third Ka intermediate relay and the circulation time relay are respectively connected with the blowing control power supply. The time control switch is additionally arranged on the blow molding opening control circuit switch, so that the control precision of the temperature, the pressure range and the blowing instantaneous flow is improved; the method is low in tolerance rate and high in equipment maintenance frequency.

The invention relates to a furniture unit hinge structure (1) adapted to movably connect a door (102) to a fixed structure (101) of a furniture unit (100), where the fixed structure is located on a support surface (104) and delimits a compartment (103), where the furniture unit hinge structure (1) comprises: a hinge structure fixing portion (2) adapted to be connected to the fixed structure (101); and a hinge structure movable portion (3) adapted to be connected to the door (102), where the hinge structure movable portion (3) is at least rotatably movable relative to the hinge structure fixed portion (2) at least between a first position adapted to open the compartment (103) and a second position adapted to close the compartment (103), where the hinge structure movable portion (3) is movable relative to the hinge structure fixed portion (2) at least between a first position adapted to open the compartment (103) and a second position adapted to close the compartment (103). The furniture unit hinge structure (1) comprises a support foot (4) connected to the hinge structure fixing portion (2), where the support foot (4) is adapted to be located on the support surface (104) to at least directly unload the weight of the door (102) onto the support surface (104).

The invention discloses a connecting structure in a root of a lengthened wind power blade. The connecting structure comprises a blade root connecting cylinder, axial mounting holes, radial mounting holes, double-thread screws and crossed nuts, wherein the axial mounting holes are uniformly and alternately formed in one end plane of the blade root connecting cylinder, the radial mounting holes are circumferentially formed in the wall of the blade root connecting cylinder, the double-thread screws are arranged in the axial mounting holes and the crossed nuts are arranged in the radial mounting holes; the axial mounting holes correspond to the radial mounting holes and are connected with the radial mounting holes to form T-shaped mounting holes, one ends of the double-thread screws protrude into the radial mounting holes to be fastened with the crossed nuts, and the other ends of the double-thread screws protrude out the end plane of the blade root connecting cylinder; the adjacent radial mounting holes are alternately formed in the wall of the blade root connecting cylinder, axial distance from a central axis of every two adjacent radial mounting holes and the end plane of the blade root connecting cylinder is different, and the lengths of the double-thread screws protruding out the blade root connecting cylinder are equal. Under the condition that the number of the radial mounting holes is increased, blade bodies among the radial mounting holes are not likely to be damaged. The invention further provides a mounting method of the lengthened wind power blade.

The invention discloses textile industry steam generation equipment. The textile industry steam generation equipment comprises a box body, emptying devices, a pushing device, an air cylinder device, aboiler device and a discharging device, wherein a combustion cavity with an upward opening is fixedly formed in the box body, a driving chain wheel is fixedly arranged on the left end wall of the combustion cavity, sliding cavities are formed in the left end wall and the right end wall of the combustion cavity in a communicating mode, and the sliding cavities are formed in a bilateral symmetry mode, the emptying devices are arranged in the sliding cavities, containing cavities located in the box body are formed below the sliding cavities, and a transmission cavity located in the box body is formed below the containing cavity in the left side. The textile industry steam generation equipment is simple in the structure and convenient to operate, by means of the emptying devices, the pushingdevice, the air cylinder device, the boiler device and the discharging device, the equipment achieves the process that biomass fuel is combusted to heat water liquid into high-temperature water vapor,more smart structures are applied in the process, the unexpected technical effect is achieved, and the working efficiency of the equipment is improved.

The invention belongs to the technical field of diaphragm pumps, and discloses a double-diaphragm pump adjusting device. The double-diaphragm pump adjusting device comprises a pump body and two pump heads connected with the pump body; diaphragm sheets are arranged in the pump heads and connected with spring shafts; the spring shafts are arranged in the pump body, and the pump body is further internally provided with an eccentric shaft; the two pump heads communicate with each other through an upper connection pipe set and a lower connection pipe set; the pump body is provided with a rotary adjusting device body extending into the pump body, the rotary adjusting device body is connected with an adjusting cam, and the adjusting cam abuts against the spring shafts; and the rotary adjusting device body is a planetary gear adjusting device and comprises a rotary rod, a first gear is arranged on the rotary rod, a gear disc is arranged between the eccentric shaft and the first gear, the top of the gear disc is provided with a plurality of second gears engaged with the first gear, and the bottom of the gear disc is connected with the adjusting cam. According to the double-diaphragm pump adjusting device, the concept is ingenious, and the technical problem that in the prior art, generally, the flow of a double-diaphragm pump is adjusted by two pump heads separately, and the two pump heads cannot adjust the flow at the same time is solved.