1001results about How to "Improve vacuuming effect" patented technology

The invention discloses a cabinet-type air-conditioning strainer mesh self-cleaning device and the working methods, wherein the device consists of a suction nozzle mechanism and a strainer mesh mechanism; the strainer mesh mechanism is fixed outside the scroll casing of the air passage and consists of a strainer mesh and a strainer mesh frame; the suction nozzle mechanism is attached to the side of the strainer mesh facing outward, and consists of main body arranged on the strainer mesh and a suction nozzle arranged on the main body, wherein the main body is driven by a drive mechanism to slide between the left and the right sides of the strainer mesh along the track, and the suction nozzle is driven by another drive mechanism to slide between the top and bottom sides of the strainer mesh along the main body; the suction nozzle is provided with a dust absorption port and a brush, and is connected with the vacuum cleaner arranged in the air-conditioning through a connecting passage; the brush adjacent to the dust absorption port cleans the strainer mesh first, and then the connecting passage of the vacuum cleaner produces negative pressure high speed air flow by way of the suction nozzle, and the air flow keeps sucking the dust at the dust absorption port. The invention is characterized by reliable operation, low costs, wide ranged of dust absorption and good effect of dust cleaning.

An omnidirectional building integrated wind energy power enhancer system is configured to produce electrical power from a wind turbine(s) concealed within and/or on top of a building by means of a flow of pressurized air from the prevailing wind that enters and flows through a portion of a building. A building may provide large exterior surface areas for receiving and directing airflow to the turbine(s). At least a portion of the wind energy power enhancer system is configured within a building, such as between floors, on a single floor, and/or a roof structure. The wind turbine(s) may be configured to receive airflow directly from an inflow chamber that is configured with a building, or from a flow tube coupled with the inflow chamber. Air deflectors may be fixed or dynamic to direct air flow into a flow tube regardless of the direction of the incoming airflow relative to the building.

The invention discloses a vacuum thermal baffle packaging film and a preparation method thereof. The vacuum thermal baffle packaging film comprises a biaxially oriented nylon layer, a polyethylene glycol terephthalate layer, an aluminum foil layer, a biaxially oriented nylon layer and a composite polyethylene layer sequentially from inside to outside. Compared with the prior art, the vacuum thermal baffle packaging film has the characteristics of smooth appearance of bag bodies (+/-5 percent of limit deviation), no phenomena of wrinkles, crystal points, PE coke buttons and the like, high barrier properties of packaging bags and good vacuumizing effect, peel strength, temperature tolerance and anti-aging effect.

The invention discloses a die-casting mechanism of a horizontal freezing chamber vacuum die-casting machine. The die-casting mechanism comprises a pressure chamber, a die-casting die, a vacuum valve, a punch, an injection rod, a first stop valve, a first vacuum system, a second stop valve, a second vacuum system, a control device and a displacement sensor. The die-casting die comprises a fixed die body and a movable die body, the movable die body and the fixed die body are matched, and therefore a cavity, an inner gate and an exhausting way are formed. The vacuum valve is arranged in a valve cavity in the fixed die body. The punch is fixedly connected with the injection rod. The pressure chamber is provided with a casting gate and a pipe connecting joint, the pipe connecting joint is connected with a second vacuum pipe, the other end of the second vacuum pipe is connected with the second stop valve, and the second stop valve is connected with the second vacuum system. The control device is used for controlling operation of the first vacuum system and the second vacuum system and controlling opening and closing of the first stop valve and the second stop valve. The die-casting mechanism has the beneficial effects of being good in vacuumizing effect, easy and convenient to arrange and maintain, low in fault rate and long in service life.

This invention is about a kind of freeze-drying set, composing of case; freezing engine set vacuum pump and hot plate. The freezing engine set composes of compressor, heat exchanger, expansion valve and evaporator; the hot plate is set in front of the case, and the evaporator of the freezing engine set is set in rear of the case; there are louver interboards between the evaporator and hot plate, and fan in rear of the evaporator. The invention consumes less energy and be manipulated conveniently.

The invention discloses an atomization spray nozzle, which comprises a spray nozzle body, a Venturi air pipe, an air inlet, a liquid inlet and a spray head, wherein the Venturi air pipe is arranged in the spray nozzle body; a liquid-phase suck-in hole is formed in a throat passage section of the Venturi air pipe; the air inlet is connected onto the spray nozzle main body, and is connected with an inlet of the Venturi air pipe; the liquid inlet is also connected onto the spray nozzle main body, in addition, the liquid inlet is also communicated with the liquid-phase suck-in hole of the Venturi air pipe; the front end of the spray head is provided with a scattering head, in addition, an atomization spraying passage is formed between an outlet of the spray head and the scattering head; the spaying head is connected onto the spray nozzle body, in addition, the spray head is communicated with an outlet of the Venturi air pipe, and the front end of the scattering head is provided with an annular electrification coil. The atomization spray nozzle has the advantages that a gas phase and a liquid phase can be sufficiently mixed, meanwhile, the atomization fineness and the fog drop distribution uniformity are greatly improved, the structure is simple, and the cost is low.

Ventilating apparatuses for a toilet remove objectionable odors. Instead of allowing toilet odors to diffuse into the bathroom atmosphere, the ventilating apparatus for a toilet draws toilet odors out of the toilet bowl and exhausts them outside of the house. The ventilating apparatus for a toilet has first inlet channels piercing the interior surface of the toilet seat and second inlet channels piercing the bottom surface of the toilet seat. The opposite ends of the first inlet channels and the second inlet channels protrude into a primary channel, thereby creating a partial air blockage and an enhanced vacuum effect through the first inlet channels and the second inlet channels. A vacuum motor controlled by a pressure-activated switch on the bottom of the toilet seat extracts air from the toilet through the first inlet channels and second inlet channels and exhausts it through a ceiling fan vent.

The invention discloses a boom-type roadheader for tunnel construction and a tunnel construction method. The boom-type roadheader comprises an engine-driven body, a boom, a milling and excavating head and a water spraying and dust removing device, wherein the boom is connected to the engine-driven body in an extensible and/or swingable manner, and the milling and excavating head is mounted at the free end of the boom in a rotatable manner. The water spraying and dust removing device comprises a plurality of nozzles around the boom and adjacent to the milling and excavating head, and the nozzles are in non-uniform distribution in the circumferential direction. When the boom-type roadheader is used for excavating and milling the cross section of a tunnel, segments and segment strips are set for milling and excavation. When each strip of each segment is excavated and milled, and when the distribution density of the nozzles on the bottom right of the milling and excavating head is set to be higher than that of the nozzles in other regions, the milling and excavating head is driven by the boom to move from left to right; when the distribution density of the nozzles on the bottom left of the milling and excavating head is set to be higher than that of the nozzles in the other regions, the milling and excavating head is driven by the boom to move from right to left.

The invention discloses a venturi valve and a vacuum power assisting device, which relates to the technical field of automobiles, and aims for solving the technical problem in the prior art that people feel hard to stamp down a pedal when an automobile is braked as the vacuum degree inside a vacuum power assisting device is low. The venture valve comprises a suction tube, a venturi tube, a connecting tube body, an exhaust tube, a first check valve and at least one second check valve, wherein the air inlets of the first check valve and the second check valve are both communicated with the air outlet of the suction tube; the air outlet of the first check valve is communicated with the small-diameter port of the venturi tube; the air outlet of the second check valve and the air inlet of the exhaust tube are both communicated with the small-diameter port of the venturi tube through the connecting tube body. The vacuum power assisting device comprises a vacuum source, an air filter, a vacuum power assistor and the venturi valve provided by any technical scheme of the invention. The venturi valve is used for improving the vacuum degree of the vacuum power assisting device.

The invention provides a smelting method for plastic die steel which is added with sulphur and easily cut; the materials after being smelted by an electric furnace is fed into a refining process; the content of the sulphur in the molten steel is controlled less than 0.005 percent during the refining process; the weight percentage of the steel slag in the molten steel is adjusted between 0.8 and 1.2 percent through slagging off; then the molten steel is fed into a vacuum furnace; an aluminum wire is fed into the molten steel; the weight of the fed aluminum wire is 0.08 to 0.10 percent of the weight of the molten steel; then the steel slag is added; the weight percentage of the steel slag in the molten steel is adjusted between 1.5 to 2 percent; then the molten steel is maintained for 15 to 30 minutes under the pressure of 60 to 70Pa; then the vacuum is released; a sulfurous iron wires are fed in and a calcium silicon block is added to finish smelting. In the invention, the occluded foreignsubstance in the molten steel can be mostly removed; the purify of the molten steel is improved to a large extent; the molten steel smelt after the invention can obtain the plastic die steel which is added with sulphur and easily cut through casting; the inspection grade of the die steel accords with requirments through detection; each property is further improved.

The present invention provides an electric vacuum cleaner equipped with a step-up converter circuit with a DC power supply as a drive source, which drives and controls the step-up converter circuit so as to refer to such a relationship as to decrease a variation in dust suction capability, determine an output voltage to be boosted according to the state of a load on a motor-driven blower, boost the output voltage, based on the result of determination and supply power to the motor-driven blower, thereby activating the step-up converter circuit with satisfactory efficiency. Thus, the dust suction performance of the electric vacuum cleaner is enhanced and the usage time of a battery per charge is lengthened.

The invention discloses a vacuum sweeper sucker structure with the automatic avoiding function. The vacuum sweeper sucker structure with the automatic avoiding function comprises a main sucker and two auxiliary suckers. The two auxiliary suckers are rotationally installed on the two sides of the main sucker respectively. The main sucker and the auxiliary suckers are all of a shell structure with an opening in the lower end. The top of the main sucker and the tops of the auxiliary suckers are all provided with dust suction pipes communicated with the interior of a shell. A rotating element is clamped to the top of the end, close to the main sucker, of each auxiliary sucker. The rotating elements are rotationally installed on the main sucker. Two driving mechanisms corresponding to the rotating elements one to one are symmetrically arranged on the top of the main sucker. The driving ends of the driving mechanisms are connected with the corresponding rotating elements. Elastic resetting devices are arranged on the auxiliary suckers. One end of each elastic resetting device is fixed to the corresponding auxiliary sucker, and the other end of each elastic resetting device is connected with the corresponding rotating element. The vacuum sweeper sucker structure with the automatic avoiding function is simple in structure, convenient to use and large in dust suction range, automatic avoiding can be performed after the vacuum sweeper sucker structure collides with a barrier, it is avoided that the suckers are damaged by external force, the structure is flexible, and practicability is high.

The invention relates to industrial ventilation and dust removal equipment with an adjusting function. The equipment comprises a base, a host, a controller, a lifting mechanism, a platform, a dust hood, a swing mechanism, a swing plate, a connecting pipe and an adjusting mechanism. The swing mechanism comprises a translation component, a rack, a gear, a supporting component and a connecting rod. The translation component comprises a first motor, a screw rod and a translation block. The adjusting mechanism comprises a hinge component, a direction adjusting component and an air cylinder. By using the industrial ventilation and dust removal equipment with the adjusting function, the swing plate is driven by the swing mechanism to swing so that the dust hood swings at a dust source and a dustsuction range is expanded; and in addition, the adjusting mechanism is used for driving the dust hood to rotate and move so that the dust hood and the dust source keep a specific distance and angle, adust suction effect is improved, and practicability of the equipment is improved.

The invention relates to a robot for cleaning an interior architecture based on a parallel mechanism. The robot comprises a self-stabilization supporting device, wherein the self-stabilization supporting device has good rigid supporting performance, stable performance and vibration reducing performance; a cleaning manipulator is arranged in the middle of the upper end face of the self-stabilization supporting device; the cleaning manipulator is adjustable in cleaning angle and wide in application range, can realize the functions of automatically cleaning a ceiling, and spider webs and dust on the ceiling and the like; the interior architecture is automatically cleaned by the cleaning manipulator; the self-stabilization supporting device comprises a fixed circular table; and four universal wheels are symmetrically arranged on the lower end face of the fixed circular table. The robot disclosed by the invention is moved to a place required to be cleaned, of the interior architecture through the four universal wheels; and four parallel supporting branched chains are uniformly arranged on the upper end face of the fixed circular table along the axial direction. According to the robot disclosed by the invention, a function of automatically cleaning the interior architecture can be realized, and a new path for automatically cleaning the interior architecture is provided.

The invention provides a two-stage dry dust cleaning device and a down-hole drilling machine including the same. The two-stage dry dust cleaning device comprises a dust catching part, a first stage dust cleaning part and a second stage dust cleaning part. The dust catching part, the first stage dust cleaning part and the second stage dust cleaning part are connected with flow guiding pipes sequentially; and a centrifugal exhaust fan with an air outlet is installed on the second stage dust cleaning part. According to the down-hole drilling machine provided with the two-stage dry dust cleaning device, rock dust generated from drilling operation is sequentially sucked into the dust catching part, the first stage dust cleaning part and the second stage dust cleaning part from the drilling positions through the sucking power of the centrifugal exhaust fan, and the rock dust is collected into the first stage dust cleaning part and the second stage dust cleaning part according the sizes of the dust particles; and tilting baffles are arranged on air flow paths in the first stage dust cleaning part and the second stage dust cleaning part, and a filtering element capable of adsorbing the light dust is arranged in the second stage dust cleaning part, so that dust sucking effect is improved, working environment and human health are protected, damage to the centrifugal exhaust fan is reduced, and using quality of the down-hole drilling machine is ensured.

The invention discloses a three-dimensional omnibearing intelligent purging system for a rail transit vehicle. The three-dimensional omnibearing intelligent purging system is characterized by comprising an air supply system (1), an electrical control system (2), a moving purging system (3) and an air exhaust and dust removal system (4). The moving purging system (3) comprises a bottom moving purging robot (31) and a top moving purging robot (32); the air exhaust and dust removal system (4) is respectively connected to the operation areas through pipelines; the air supply system (1) is connected with the bottom moving purging robot (31) and the top moving purging robot (32) through flexible pipelines to provide high-pressure air for the bottom moving purging robot (31) and the top moving purging robot (32); and the electric control system (2) is used for monitoring environmental parameters in a rail transit vehicle purging workshop. Dust of the vehicle can be quickly and efficiently removed, the working environment in the purging warehouse is improved, and three-dimensional omnibearing purging of the bottom, the sides and the top of the rail transit vehicle is achieved.