47results about How to "Improve isolation efficiency" patented technology

The invention discloses a wave-transparent multilayer heat insulation structure for realizing thermal control of a spacecraft antenna. The wave-transparent multilayer heat insulation structure comprises reflecting screens (1), spacing layers (2), a surface film (3) and an inner side film (5). The laminated structure of the multiple layers of reflecting screens (1) has the effect of increasing infrared radiation thermal resistance. The spacing layers (2) are arranged between every two layers of reflecting screens (1) to isolate the heat conduction between layers of the reflecting screens (1).The surface film (3) has the effect of reflecting solar spectrum heat radiation. A sewing material (4) is used for multilayer sewing of the reflecting screens (1). An inner side film (5) and the reflecting screens (1) are made of the same material, and the inner side film mainly plays a role in protection to avoid damage caused by friction between the multilayer heat insulation structure and a product . According to the invention, the wave-transparent multilayer heat insulation structure has good transmissivity for working electromagnetic waves of the antenna and has high reliability.

The invention belongs to the field of a moisture gas-liquid two-phase flow measuring technology and relates to a moisture two-phase flow measuring device with an annular chamber gas-liquid separation pressure measuring device, comprising a measuring pipeline, wherein a pipe wall of each pressure measuring position of the measuring pipeline, which is located on the same plane vertical with a axis, is provided with four inner pressure measuring holes; the two of the four inner pressure measuring holes are formed at the maximum diameter position in a horizontal direction of the pipe wall, and the other two of the four inner pressure measuring holes are formed at the maximum diameter position in a vertical direction of the pipe wall; an annular chamber structure is fixedly arranged on the peripheries of the four inner pressure measuring holes; the annular chamber and a measuring pipeline body are coaxial and are fixedly arranged on the outer wall of each pressure measuring position of the measuring pipeline body so as to form a gas-liquid separation chamber with a certain capacity space; a pressure leading opening which is abutted with an outer pressure leading pipe is formed above the vertical axis of the chamber; and a dirt discharging opening which is abutted with an outer dirt discharging pipe is formed below the vertical axis of the chamber. The moisture two-phase flow measuring device has the advantages that the structure is simple, the dependence on a large-sized gas-liquid separator is free, pressure measuring precision is high, pressure measurement is not influenced by a liquid phase, and the implementation is convenient.

The invention relates to an air conditioner filter element which comprises at least two filter layers, namely a filter layer and an antibacterial layer. The filter layer and the antibacterial layer are compounded into one layer through materials, filtered gas firstly enters the filter layer and then enters the antibacterial layer, and at least part of the filter layer is made of melt-blown fibers.The air conditioner filter element further comprises a pre-filter layer, the pre-filter layer is placed on the filter layer, and filtered gas firstly passes through the pre-filter layer. The pre-filter layer is at least partially made of electrostatic fibers. And metal bactericidal ions are arranged in the antibacterial layer. The metal bactericidal ions are at least one of copper ions and silverions. And the filter layer comprises an N95 filter layer or a composite activated carbon layer and an N95 filter layer. The invention further provides an automobile air conditioner filter which comprises the air conditioner filter element. The invention further provides a method for manufacturing the air conditioner filter element.

A steam driven engine having a device for equilibration of propulsion forces in the bearing assemblies produced by the steam drive and equipped with steam and oil separators. The device for equilibrating the propulsion force includes a space disposed between the drive shaft and the surrounding casing, the device being connected on one side to the pressurized steam source and on the other side to a discharge pipe via a throttle channel. The clearance is situated in the casing on both sides of the drive screws and runs along the lateral surface of the drive shaft on the portion thereof opposing the direction of the propulsion force. The steam and oil separators are provided with elements for discharge of the steam and oil.

The invention relates to an efficient foreign-body-proof electric generator. The electric generator comprises a ventilating duct, an impeller assembly, an induction motor assembly and an impurity-proof assembly. The impeller assembly is installed inside the ventilating duct and comprises an output shaft, and the output shaft is connected with the induction motor assembly. The impurity-proof assembly comprises a grid impeller, an annular fixing frame is arranged at the edge of the grid impeller, the grid impeller is arranged on an air inlet of the ventilating duct through a thin-wall bearing in a rotary mode, the thin-wall bearing is arranged on the periphery of the fixing frame, the grid impeller comprises a plurality of grid pieces which are arranged relative to the axis of the output shaft of the impeller assembly to form an annular array and an annular isolation net is arranged from the fixing frame of the grid impeller to the middles of the grid pieces; the bending direction of each grid piece is opposite to the bending direction of each blade in the impeller assembly, the isolation net comprises a plurality of isolating rings which are fixed to the grid pieces with the axis of the output shaft as the circle center, and the diameters of the isolating rings gradually increase from the center of the grid impeller to the outside.

The application discloses a network environmental isolation method and device and a service obtaining method and device which are used for solving the problem in the prior art that a network environmental isolation mode of configuring the service addresses manually is low in efficiency. The network environmental isolation method comprises the steps of obtaining the domain names corresponding to the machines in a network, wherein the domain names contain the environmental labeling information; carrying out the environmental isolation on the machines according to the environmental labeling information contained by the domain names corresponding to the machines.

The invention relates to a rope-swing-type self-resetting anti-drawing seismic isolation bearing. The rope-swing-type self-resetting anti-drawing seismic isolation bearing comprises a U-shaped bearing and a bearing upper plate. The U-shaped bearing and the bearing upper plate are connected through a floating seismic isolation device. According to the rope-swing-type self-resetting anti-drawing seismic isolation bearing, the seismic isolation bearing can isolate seismic oscillation transmitted from different directions through rolling of the roller along a rope and swing of the rope, seismic isolation protection can be provided for an upper portion structure, and damage of the structure is reduced and even avoided; the seismic isolation bearing isolates an earthquake through rolling of the roller along the rope and swing of the rope, and because the starting resistance of rolling and swinging is obviously reduced compared with traditional rubber or a sliding bearing, the seismic isolation efficiency is greatly improved; and the seismic isolation bearing isolates the earthquake through rolling of the roller along the rope and swing of the rope, through rolling of the roller along the rope and free swinging of the rope, the upper portion of the bearing can finally go back to an initial position of the bearing, and the rope-swing-type self-resetting anti-drawing seismic isolation bearing has a good self-resetting function.

A vertical-motion vibration isolator utilizes negative-stiffness-producing mechanism which includes a plurality of compressed flexures, each having a particular length in the compressed direction of the flexure and being oriented in a horizontal direction, wherein the plurality of compressed flexures are positioned relative to each other such that the length of each compressed flexure substantially overlaps the length of each of the other compressed flexures. At least some of the plurality of compressed flexures can be positioned in a stacked arrangement. The arrangement of compressed flexures forming a portion of the negative-stiffness mechanism can reduce the size of the isolator without compromising vibration isolation performance.

The invention relates to a foreign matter prevention electric generator which comprises a ventilating duct, an impeller assembly, an induction motor assembly, an impurity prevention assembly and a transmission assembly. The impeller assembly is mounted in the ventilating duct and comprises an output shaft, and the output shaft is connected with the induction motor assembly. The impurity prevention assembly comprises a blocking impeller, an annular fixing frame is arranged on the edge of the blocking impeller, and the blocking impeller is rotatably arranged at an air inlet of the ventilating duct through a thin-wall bearing which is arranged on the periphery of the fixing frame. The blocking impeller comprises a plurality of blocking rods which are arranged in an annular array mode relative to the axis of the output shaft of the impeller assembly, and an annular isolation net is arranged from the fixing frame of the blocking impeller to the middles of the blocking rods. The transmission assembly enables the fixing frame and the impeller assembly to make reversing rotation movement under the driving of the output shaft.

The invention discloses a shock insulation groove system of a novel house building foundation shock insulation structure. The shock insulation groove system comprises a leakage-proof shock insulation groove formed between a shock insulation building body and a peripheral fixture, a shock insulation groove retaining wall, an underground outer wall, a reinforced concrete cushion layer at the bottom of the shock insulation groove, and a one-way compression laminated polystyrene foam filling body stuffed in the shock insulation groove, wherein the shock insulation groove retaining wall and the underground outer wall are arranged in the shock insulation groove. The shock insulation groove system has very high horizontal compression performance and necessary vertical strength and rigidity, so that the seismic isolation groove system can freely move in the horizontal direction under the action of an earthquake and can vertically meet the requirement for passing of personnel. The shock insulation groove system has the advantages that the industrialization degree is high, mounting and construction are easy, misoperation of constructors is reduced, the construction speed is increased, it is guaranteed that the upper structure of the shock insulation building body and a peripheral site fixture 2 can freely deform, and the shock insulation efficiency of the shock insulation structure is improved.

The invention provides a bandwidth isolation device and method, and the device comprises: a message receiving module which is used for obtaining a data message through a drive program; a bandwidth determination module which is used for determining a target bandwidth occupation proportion corresponding to the header information of the data message according to a corresponding relationship between apreset bandwidth selection condition and a bandwidth occupation proportion, wherein the bandwidth selection condition is constructed for the header information of the data message; and a scheduler which is used for sending the data message according to the target bandwidth occupation proportion. According to the invention, the packaged data message is analyzed and processed; according to the preset corresponding relation, the header information of the data message is directly mapped to the corresponding target bandwidth occupation proportion to be sent; and the execution logic is simple, no protocol coupling exists, and the constraint of a user mode or a software/hardware kernel mode is avoided, so that all transmission protocols can be supported and compatible, and the isolation requirement of higher performance can be met while the application range of the bandwidth isolation scheme is expanded.

The invention provides a novel combined bag dust collector. A centrifugal spiral drum pre-dust falling device and a bag type dust collecting device are respectively arranged on a frame and a support;an air inlet I of the centrifugal spiral drum pre-dust falling device is communicated with a dust air exhausting port and an air outlet I of the centrifugal spiral drum pre-dust falling device is communicated with an air inlet II of the bag type dust collecting device; the dust air passes the centrifugal spiral drum pre-dust falling device and the bag type dust collecting device for pre-dust falling and rough dust separation and then is fed into a bag type dust removing box which is connected with an air outlet II of the bag type dust collecting device, so that the dust-falling and dust separating treatment for the dust air can be realized. The novel combined bag dust collector is beneficial to the dry dust collection of the bag type dust collecting device and the bag type dust removing box; the dust removing efficiency is increased; the dust is prevented from quickly attaching to the bag under the effect of water in air; the dust-cleaning period and the service life of the bag are long; the maintenance and halting times of the dust collector are effectively reduced; the use value is ultrahigh.

The invention provides an ion isolation method and system of an ion trap mass spectrometer and a medium, and relates to the technical field of mass analysis, and the method comprises the following steps: an ion introduction step: opening an ion gate of an ion trap, placing a rear end cover of the mass spectrometer at a preset potential, and capturing ions; an ion trapping step: closing the ion gate, and stabilizing the trapped ions in the central region of the ion trap; an ion isolation step: obtaining any one or more of a parent ion mass-to-charge ratio m/z, an isolation mass number range and a parent ion isolation efficiency value according to the number of the DDS occupied by the positive voltage and/or the isolation time; an isolation cooling step: placing the ions at a preset value, and cooling the ions according to a preset isolation cooling time; and an ion emptying step: applying a preset duty ratio to the ion trap electrode to complete ion emptying. According to the invention, the hardware requirement is low, the equivalent quadrupole direct current can be generated in the ion trap by adjusting the duty ratio of the digital rectangular wave main radio frequency, and an extra high-precision and high-stability hardware direct current circuit is not needed.

The invention provides an image sensor and a manufacturing method thereof. The manufacturing method of the image sensor comprises the following steps: providing a substrate which comprises a pluralityof pixel unit regions and isolation regions located among the pixel unit regions; performing secondary ion implantation on the isolation regions; and performing high-temperature annealing processingon the substrate to form isolation layers in the isolation regions. According to the above technical scheme of the invention, the isolation efficiency is improved while dark current in the image sensor is reduced.

The present invention relates to a compressor (1) comprising a casing (2) carrying the components therein, a cylinder (3) wherein the compression process is performed, a cylinder head (4) disposed on the cylinder (3), at least one exhaust chamber (5) disposed at the cylinder head (4), wherein the pumped circulating fluid fills and at least one suction chamber (6) wherein the sucked circulating fluid fills.

The invention discloses a polyurethane shock absorber and a preparation method thereof. The polyurethane shock absorber comprises more than two polyurethane elastomer material layers, the hardness degrees of the adjacent polyurethane elastomer material layers are different, and the hardness value set of all the polyurethane elastomer material layers at least comprises two different hardness values. Every two adjacent polyurethane elastomer material layers are formed by being cast in sequence, a binder is brushed or sprayed on the polyurethane elastomer material layer which is formed firstly, and then the other polyurethane elastomer material layer is formed on the surface of the polyurethane elastomer material layer by being cast. By using the multi-layer polyurethane structure with different hardness degrees, the shock absorption effect of different vibration frequency intervals can be achieved, the shock absorption performance is greatly improved, and the glue failure problem of metal and high polymer materials can be effectively avoided.

The invention provides a three-dimensional seismic isolating pedestal with multiple defence lines. The three-dimensional seismic isolating pedestal with multiple defence lines comprises a pedestal bottom plate, at least three supporting columns and a top plate, wherein the bottom end of each supporting column is fixed on the pedestal bottom plate; the top plate is used for placing an object to be protected; a top box is fixed on the bottom surface of the top plate; a multi-defence line horizontal seismic isolating unit is horizontally connected between the side surface of each supporting column and the corresponding side surface of the top box; a multi-defence line vertical seismic isolating unit is vertically connected between the top end of each supporting column and the bottom surface of the top box; each of the multi-defence line horizontal seismic isolating units and the multi-defence line vertical seismic isolating units is provided with a plurality of pieces of thin and long soft steel and a plurality of pieces of short and thick soft steel; the first defence line is formed by the thin and long soft steel and the second defence line is formed by the short and thick soft steel; and when a structure which is subjected to seismic isolating is at different seismic action levels, a plurality of seismic isolating defence systems can be arranged on a supporting seat independently, the working states and the control levels of the seismic isolating supporting seat at different levels are different, so that the three-dimensional seismic isolating pedestal with the multiple defence lines has higher adaptability.