156results about How to "Increase inspiratory capacity" patented technology

The invention relates to a Zr-Co-Re thin film getter provided with a protection layer, and a preparation method thereof. The Zr-Co-Re thin film getter is composed of a getter layer and the protection layer; main components of the getter layer are Zr, Co, and one or more selected form rare earth elements La, Ce, Pr, and Nd; and main component of the protection layer is Ni. Pulsed laser deposition film plating is adopted, and deposition of the double-layer structured thin film getter containing the protection layer and the getter layer on texture monocrystalline silicon is carried out. The texture substrate is capable of increasing effective area of the getter thin film, and so that inspiratory flow rate and inspiratory capacity are increased. The surface of the getter layer is plated with a Ni protection layer; Ni is capable of realizing dissociation of hydrogen, and increasing absorption amount of hydrogen; and the Ni protection layer is capable of inhibiting absorption of oxygen and reducing activation temperature. Activation of the Zr-Co-Re thin film getter can be realized in roasting processes at a temperature of 180 to 350 DEG C; after roasting, the Zr-Co-Re thin film getter possesses excellent inspiration performance at room temperature, can be used for internal gas residue removing of high vacuum microelectronic devices.

The invention provides an outdoor unit of an air conditioner. The outdoor unit comprises a compressor, an outdoor heat exchanger, a first pipeline and an outdoor electronic expansion valve, wherein the first pipeline is used for connecting the indoor unit and the outdoor heat exchanger, the outdoor electronic expansion valve is connected in series onto the first pipeline, the compressor is a first double-rotor compressor, the first double-rotor compressor is provided with a first auxiliary air suction opening, a first main air suction opening and a first exhaust opening, the first main air suction opening is respectively connected with a four-way valve of the air conditioner, the outdoor unit also comprises a medium-pressure liquid storage tank positioned between the indoor unit and the outdoor electronic expansion valve, the medium-pressure liquid storage tank is connected in series onto the first pipeline and is provided with an air outlet, an inlet and a liquid outlet, the air outlet is connected with the first auxiliary air suction opening through a first auxiliary pipeline, and the inlet and the liquid outlet are respectively connected with the first pipeline. The outdoor unit of the air conditioner provided by the invention has the advantage that through the additional arrangement of the medium-pressure liquid storage tank and the adoption of the first double-rotor compressor, the low-temperature heating capability of the whole air conditioner is improved. The invention also provides the air conditioner, a heating air supplementing method of the air conditioner and a refrigeration air supplementing method of the air conditioner.

The invention relates to a scroll wrap profile of a liquid-injected scroll compressor. Outer profiles of a static scroll wrap and a dynamic scroll wrap are composed of a section of a variable diameter base circle involute, and the inner profiles of the static scroll wrap and the dynamic scroll wrap are composed by smoothly connecting a variable diameter base circle involute at a center part and normal equidistant curves of the variable diameter base circle involute of the outer ring. The scroll wrap refers to a scroll wrap with compression chamber variational meshing clearance and the wall thickness of the scroll wrap changing gradually. The meshing part close to a central air outlet of the compression chamber is provided with the meshing clearance which forms a pressure unloading channel to the air outlet with small clearance internal leakage, so that the problems of surge pressure in the compression chamber or liquid impacting which are produced by incompressible liquid with relatively large spraying volume. The meshing point of a suction cavity formed by the scroll wrap has no meshing clearance, so that the suction cavity is completely isolated from the compression chamber; at the same time, the wall thickness of the scroll wrap changes thinner gradually from the center to the outer ring, so that the central part of the scroll wrap has enough strength; and the wall thickness at the outer ring of the scroll wrap is relatively thin, so that area utilization rate of a scroll plate is effectively increased.

The invention discloses a non-evaporable low-temperature activated zirconium getter film and a preparation method thereof. The non-evaporable low-temperature activated zirconium getter film comprises an adjusting layer, a gettering layer and a protecting layer which grow on a rough monocrystalline silicon wafer sequentially, wherein in terms of chemical composition, the gettering layer contains 75%-77% by mass of zirconium, 18%-22% by mass of cobalt, 2%-5% by mass of yttrium and the balance of other inevitable impurities; in terms of a microstructure, the gettering layer is formed by densely arranged columnar grains, and the height of columnar tissue is 100-300 nm. The prepared getter film has the advantages of being environment-friendly, high in gettering capacity, low in activation temperature, high in adhesion force, long in service life, easy to prepare, low in cost and the like and is applicable to packaging of mini vacuum devices in the industrial field of microelectronics.

The invention relates to a tank heat exchanger for a heat pump system. The tank heat exchanger for the heat pump system comprises an outer cylinder, a gas-liquid separator, a heat exchange pipe and a baffle plate, wherein an upper cover plate and a lower cover plate are respectively arranged at the top and the bottom of the outer cylinder; a refrigerant inlet is formed in the bottom of the outer cylinder; a refrigerant outlet is formed in the upper cover plate; the gas-liquid separator includes an inner cylinder; an upper sealing plate and a lower sealing plate are respectively arranged at the top and the bottom of the inner cylinder; the upper sealing plate is provided with an intake pipe and an exhaust pipe; the heat exchange pipe is arranged between the outer cylinder and the inner cylinder, and is spirally coiled out of the inner cylinder; a water outlet and a water inlet are respectively formed in the upper end and the lower end of the heat exchange pipe; and the baffle plate is arranged below the upper cover plate and above the heat exchange pipe. The tank heat exchanger has the advantages of high heat exchange efficiency, low cost, convenience to maintain and clean and excellent freeze preventing function.

The invention discloses a rotary jet self-priming type short-range strengthening foam production device for dust suppression of a coal mining machine. The device comprises a pressure water supply pipe, a swirl nozzle and a jet foaming barrel, wherein the pressure water supply pipe is connected with the swirl nozzle; the jet foaming barrel is internally and sequentially provided with an air suction chamber, a liquid suction chamber, a mixing throat pipe, a pressurizing foam formation chamber, a strengthening foam production chamber and an accelerating flow-out chamber; the swirl nozzle is screwed into the air suction chamber in the jet foaming barrel by screw threads; an air suction hole is formed in the air suction chamber, and a liquid suction hole is formed in the liquid suction chamber, and is connected with a liquid suction hose; a trapezoidal runner threaded rod is arranged in the strengthening foam production chamber. According to the device, air and a foaming agent can be automatically sucked by swiveling jet, and a pressure ventilation pipeline and a foaming agent adding device do not need to be provided, so that the device is reliable and high in applicability; efficient energy transfer and mass transfer of three mediums including water, air and the foaming agent as well as low-resistance dust suppression foam production can be realized by the short-range mixing throat pipe and the strengthening foam production chamber; the device is high in foam production efficiency and large in foam exit momentum, thus being suitable for controlling the cutting dust of the coal mining machine.

The invention discloses a double-cylinder rotary type compressor component and a compression device thereof. The compression device comprises a first cylinder, a second cylinder and a partition plate, wherein a first compression cavity is formed in the first cylinder; a first air suction slot communicated with the first compression cavity is formed in the lower surface of the first cylinder; the second cylinder is arranged below the first cylinder; a second compression cavity is formed in the second cylinder; a second air suction slot communicated with the second compression cavity is formed in the upper surface of the second cylinder and corresponds to the first air suction slot from top to bottom; the partition plate is arranged between the first cylinder and the second cylinder; a third matching slot is formed in the partition plate and is matched with at least one of the first air suction slot and the second air suction slot; the first air suction slot, the second air suction slot and the third matching slot jointly form an air suction opening. According to the compression device for the double-cylinder rotary type compressor component, disclosed by the invention, the transverse size of the air suction opening is large, the air suction resistance is reduced, and the efficiency of the double-cylinder rotary type compressor component is improved.

The invention relates to a low temperature heat pump water heater, comprising a compressor, a hot water heat interchanger, a throttle mechanism, a super-cooling charge air cooler, an outdoor heat interchanger, a gas-liquid separator, a heat preservation water tank, a water pump and a defrosting electromagnetic valve. In the invention, a super-cooling charge air cooler air supply device is provided, under the operation of low temperature working condition for producing hot water, the low temperature heat pump water heater of the invention adopts the super-cooling charge air cooler to add saturated refrigerant gas of intermediate pressure to the compressor, so that condensate depression of the refrigerant in the primary cycle is increased while suction capacity of the compressor is increased, thus increasing mass flux in the major cycle, increasing heating capacity and reducing discharge temperature and compression ratio of the compressor. The water heater of the invention has simple structure, easy production, low production cost, high efficiency and energy saving and reliable and stable operation.

The invention provides an air conditioner control method. The air conditioner control method is used for a refrigerant heating module of an air conditioner. The air conditioner control method comprises the following steps that an outdoor ambient temperature, an indoor ambient temperature and a compressor exhaust temperature are detected after the air conditioner operates in a heating mode and a first preset condition is met; a user set temperature is acquired; whether the outdoor ambient temperature, a difference value between the user set temperature and the indoor ambient temperature and thecompressor exhaust temperature meet a second preset condition is judged; and if yes, the refrigerant heating module is turned on. The turn-on of the refrigerant heating module is jointly controlled through three parameters of the outdoor ambient temperature, a user heating demand (obtained by the difference value between the user set temperature and the indoor ambient temperature) and the compressor exhaust temperature, the control of the refrigerant heating module is more accurate, and the refrigerant heating module cannot be turned on under the condition that refrigerant heating is not required, so that energy saving is further realized, and low-temperature heating capacity and energy efficiency are improved to the greatest extent.

The invention relates to an ultralow temperature heat pump air conditioning system, consisting of a compressor, a solenoid operated four-way valve, an outdoor heat exchanger, a throttle mechanism, a flash vaporization intercooler, an indoor heat exchanger and a gas-liquid separator. The air conditioning system comprises a steam injection device of the flash vaporization intercooler, and when the air conditioning system is in heating operation under ultralow temperature, the flash vaporization intercooler sprays refrigeration agent, so as to increase the inspiration capacity of the compressor and help to increase the mass flow of the refrigeration agent in a main circle, thereby increasing the heating capacity and reducing the compression ratio and the discharge temperature of the compressor. The invention has the advantages of simple structure, easy manufacture, low manufacturing cost, high efficiency, energy saving, stable and reliable operation, etc.

The invention relates to a low temperature heat pump air conditioning system, consisting of a compressor, an electromagnetic four-way valve, an outdoor heat exchanger, a throttle mechanism, a super cooling intercooler, an indoor heat exchanger and a gas-liquid separator. In the invention, an air supply device for the super cooling intercooler is provided, when heating is carried out under the low temperature working condition, the super cooling intercooler is used for supplementing the compressor with medium pressured saturated refrigerant gas to increase the super cooling degree of the refrigerant in the main circulation and simultaneously increase inspiration capacity of the compressor so as to enhance the mass flux of the refrigerant in the main circulation, thus heating capacity is increased and compression ratio and gas discharge temperature are decreased. The low temperature heat pump air conditioning system has the advantages of simple structure, easy manufacturing, low manufacturing cost, high efficiency, energy-saving, stable and reliable operation, etc.

The present invention is an air intake device for a two-wheeled motorcycle, which is formed in an air filter housing divided into an upstream side air chamber and a downstream side air chamber by an air filter element, and the lower part of the air filter housing has a The lower opening is further provided with a rib that surrounds at least a part of the circumference of the lower opening and protrudes downward from the air filter case. It is possible to prevent rainwater and muddy water from being sucked into the air filter housing while reducing the suction resistance.

The invention provides a complex structure getter film and a preparation method thereof. The method comprises the steps that a substrate is provided; a first getter alloy is adopted as a target, and amagnetron sputtering layer is deposited on the substrate through a magnetron sputtering method; and a second getter alloy is adopted as a target, a vacuum evaporation layer is deposited on the magnetron sputtering layer through a vacuum evaporation coating method, and the complex structure getter film is obtained. According to the complex structure getter film and the preparation method thereof,the complex structure getter film with microcosmic gradient morphology design is constructed, so that the complex structure getter film meets the characteristics of good film layer mechanical property, high porosity, high air suction capacity, high air suction rate, low-temperature activation and the like, and god industrial application prospects are achieved.

The invention belongs to the technical field of mineral separation and particularly relates to complete equipment for pre-desliming floatation. A self-interference elastic rectifying and desliming unit is arranged, and an inclined rectifying hole formed by an inclined plate is adopted as a rectifying device, so that particle settlement is accelerated while turbulent flow is changed into laminar flow, and the settlement time is shortened; the rectifying device adopts a diversion channel of which the cross section is wide in upper part and narrow in lower part, and high-speed flows are formed and form convection interference on a material flow at the bottom of a first material drainage channel in a self-interference mixing area, so that the materials are subjected to interfered settling, the separation of clean ash from fine silt is accelerated, floatation feed materials are subjected to pre-desliming, and further the viscosity of the floatation feed materials is reduced; meanwhile, a connecting rod injection stirring air suction mechanism is adopted; air suction spray nozzles are adopted for injecting an impeller in an air chamber and drive a connecting rod stirring impeller in a floatation tank, so that the resistance of an injection water body is overcome, energy consumption is greatly reduced, ore pulp with different concentrations is fully mixed under the reasonable impeller stirring action and provides enough suction intensity, and the floatation efficiency is improved.

The invention discloses a sound-proof double air inlet micro air pump. The sound-proof double air inlet micro air pump comprises a motor and a shell assembly, wherein the shell assembly comprises a fixed base and a cup base; a valve seat is mounted on the cup base; an upper cover with an air outlet is arranged on the valve seat; the fixed base and the cup base are enclosed to form an air inlet cavity; the valve seat and the upper cover are enclosed to form an exhaust cavity; an eccentric cap, a linkage shaft and a linkage bracket are arranged in the air inlet cavity; an air compression cup is mounted on the cup base; a one-way exhaust valve is mounted on the valve seat; filtering sound-proof cotton is arranged in the exhaust cavity; an inner cavity of the air compression cup is an air compression cavity; the eccentric cap is connected with a motor; an eccentric hole is formed in the eccentric cap; one end of the linkage shaft is mounted in the eccentric hole; the other end is connected with the linkage bracket; a left air inlet hole and a right air inlet hole are formed in the fixed base; and positions of the left air inlet hole and the right air inlet hole exceed a rotation track of the eccentric cap to form a double air inlet structure. The sound-proof double air inlet micro air pump has the advantages of reducing air noise, large air suction amount, reducing air suction resistance and reducing vibration.

The invention belongs to the technical field of mineral separation and particularly relates to a reaction type annular jetting air sucking stirring type floatation machine with a rectifying device. A reaction type annular jetting air sucking mechanism is arranged between a pair of baffles, ore pulp kinetic energy can be sufficiently utilized, nozzle counter force is used for driving an impeller to rotate, jetting flow drives air around an annular jetting pipe, in addition, negative-pressure air sucking is formed under a cover, secondary air sucking is achieved, and air is sufficiently mixed with ore pulp. Meanwhile, a gradually-enlarging rectifying device is erected between the baffles, surface tension of mineralized particles can be effectively overcome, and secondary mineralization and bubble concentration are accelerated. The mineralization process can be better conducted, and therefore the floatation efficiency is improved. An automatic adjusting valve is arranged in a floatation reagent adding pipe, the feeding amount of a floatation reagent can be adjusted according to the fed material jetting speed, energy consumption is reduced, and the reagent use amount is reduced.

The invention discloses an all-engaged variable wall thickness vortex vacuum pump. An inner side engagement molded line and an outer side engagement molded line of a movable vortex gear of the vortexvacuum pump and an inner side molded line and an outer side molded line of a stationary vortex gear are obtained from a vortex middle line formed by a circle involute and a high-order continuous curvein the normal direction in an equally-spaced manner. Molded lines of the outermost circles of the obtained vortex gears can be involved into engagement; the air suction capacity can be increased; inaddition, the vortex number required under the high pressure-ratio and large air capacity requirements is small; and the leakage rate is low. The vortex middle line is formed by connecting two arcs inthe center, wherein the two arcs are different in radius. When a final engagement point of a stationary vortex coincides with a final engagement point of a movable vortex, two formed minimum closed working cavities are unequal in volume. The volume ratios of two air suction cavities to the corresponding minimum closed working cavities can be equal, and thus the problems that at the moment when anexhaust port of an existing all-engaged vortex vacuum pump is opened, efficiency of the vortex vacuum pump is lowered and a vortex disc vibrates due to mixing of gases at different pressures are solved; and work efficiency of the vortex vacuum pump is improved.

The invention relates to a single-groove inflation stirring type flotation machine and belongs to the technical field of mining machines. The single-groove inflation stirring type flotation machine is composed of a foam scraper blade transmission device (2), a head foam scraper blade (3), a main shaft mechanism (4), a transmission device (6) and groove bodies (17). Air is supplied through an outer air blower, and the air inflating volume of the outer air blower can be adjusted through a valve according to flotation needs; due to the fact that an impeller only performs the function of stirring and does not perform the function of air suction, the rotating speed is low, stirring is not strong, and the argillization phenomenon is not likely to happen when floatation is conducted on fragile objects. The ore pulp surface is stable, a stable foam layer can be easily formed, and thus the grading index can be easily increased; the single-groove inflation stirring type flotation machine is used for separating nonferrous metal, black metal, precious metal and non-metallic minerals, used for rougher flotation, scavenging flotation and fine flotation of chemical materials and used for recycling useful minerals. The single-groove inflation stirring type flotation machine is large in air suction volume, low in power consumption, small in equipment occupied area, convenient to maintain, capable of completely achieving automatic mechanical production, wide in application range and long in service life.

The invention provides a getter which comprises the following components in percentage by weight: 15-70 percent of first air suction particles, 15-70 percent of second air suction particles and 5-15 percent of a sintering aid, wherein the first air suction particles refer to a ternary alloy; two metals in the ternary alloy refer to Zr and V; and the second air suction particles are metal simple substances or metal compounds in the fourth subgroup. The hydrogen atom has high diffusion rate in a V-enriched phase of the ternary alloy, and the ternary alloy has low activation temperature; the second air suction particles have high hydrogen absorption capacity, stable air suction performance and high air suction rate; and moreover, a beta-phase solid solution is formed between the sintering aid and the second air suction particles, so that the binding force among the getter particles is increased, and the stability of the getter is improved. Therefore, the getter has the wide-range activation performance and has high firmness and air suction performance.

The invention relates to an internally heated getter pump. The pump comprises a plurality of air suction elements 1, a supporting body, positioning plates 5 and a base 6. The supporting body comprisesa central supporting bar 2 and a cylindrical hollowed-out thin shell 4. The central supporting bar 2 is connected with the cylindrical hollowed-out thin shell 4 through one positioning plate 5. The positioning plates 5 and the cylindrical hollowed-out thin shell 4 are fixed to the base 6 through the central supporting bar 2. A pump body is provided with the multiple air suction elements 1 which are uniformly fixed to the positioning plates 5 through thin metal bars 11 correspondingly. The base 6 is a high vacuum CF flange and is connected with the pump body central supporting bar 2 in a threaded form and connected with heating systems and thermocouples in the pump body and an external power supply by embedding four vacuum electrodes 7 in the base through kovar alloy. The internally heatedgetter pump provided by the invention adopts the internal heating column shaped air suction elements and is high in heating efficiency, uniform in exciting and high in air suction speed.

The invention relates to a Li-B air suction material, and belongs to the technical field of manufacturing of air suction materials. The Li-B air suction material comprises the following components, by mass, 30-70 % of Li, 20-50 % of B, 0.3-6 % of Mg and / or Al, and 0.01-18 % of C. The sum of the mass percentage of all the components is 100 %. The using temperature of the Li-B base air suction material can exceed 200 DEG C, and the Li-B base air suction material can normally and efficiently suck air when used at high temperature. The Li-B base air suction material not only is applied to the technical field of vacuum electronics, but also can be used in emerging technology fields which have special requirements for air suction materials.

The invention belongs to the environmental protection equipment field, and relates to an aeration oxygenator for water purification, in particular to an air breaker. The air breaker comprises an air breaking cylinder with openings at two ends, a guide flow cylinder, an air suction pipe and an air suction flow-pushing propeller arranged in the air breaking cylinder, wherein, the air breaking cylinder is an air collection cavity enclosed by an air collection cylinder at an outer layer, a dissolving and mixing cylinder at an innermost layer and a steel plate for connecting the two cylinders; small holes are distributed on the wall of a dissolving and mixing cylinder; and the air collection cavity is internally equipped with disk-type hollow porous breaking sheets. The air breaker of the invention can more thoroughly break air to fully mix water with air, thus obviously improving the aeration efficiency, enhancing utilization ratio of oxygen in air up to 60%-90%, and achieving the purpose of high oxygenation.

The invention discloses a gas compressor with damping boss guide vanes. The gas compressor is composed of a machine body assembly, a supercharging device and a servo motor. The supercharging device isinstalled between a gas inlet and a main gas chamber of the main body assembly, gas supercharging is achieved, the supercharging process is stable, energy consumption is low, and high supercharging is achieved according to practical requirements. The servo motor is installed on the outer wall side of a shell. The guide vanes adopted in the gas compressor are simple in structure, damping bosses inthe middles of the guide vanes and the vanes are assembled to be in an annular shape to restrict each other, rigidity is increased, the inherent frequency of the vanes is changed, the bending torsional stress of the roots of the vanes is reduced, damping boss combined faces of the guide vanes are sprayed with wear resisting alloy, and the damping effect can be achieved during vibration of the guide vanes. Impellers adopted in the gas compressor are large in gas suction amount, low in noise, high in working efficiency, no prone to deformation and damage and long in service life, flow equalizing processing for gas suction and gas exhaust can be achieved, and balance of gas pressure in the shell is ensured.

The embodiment of the invention discloses a rotary vane compressor, which comprises a rotor, a front end cover, a rear end cover, blades and a cylinder body, wherein inner surface shafts of the cylinder body are symmetric; the front end cover and the rear end cover are arranged at the two ends of the cylinder body; the rotor is arranged in the cylinder body; a sliding groove is arranged at a radial eccentric position on the rotor; the blades are arranged in the sliding groove; the rotor profile of the rotor is round; the motion curve of the blades is an extremely approximate function of the cylinder body profile of the cylinder body obtained by the displacement functions of the blades, and Theta is the rotor angle of the rotor; the cylinder body profile of the cylinder body of the rotary vane compressor is obtained by conversion according to the motion curve of the blades; three-order continuousness is ensured by the joints of all segments of the motion curve so as to prevent power impact on the blades. By optimization of angles, the tightness of the contact position between the cylinder body of the compressor and the rotor is ensured, and the air suction capacity and the theoretical exhaust capacity are improved under the condition of unchanged structural size of the compressor.

The invention relates to an adult simple breathing training balloon and a using method thereof. The training balloon comprises a one-way exhaust valve, a safety valve, a balloon main body and an air inlet valve, wherein the one-way exhaust valve is arranged at one end of the balloon main body, the safety valve is arranged between the one-way exhaust valve and the balloon main body, and the air inlet valve is arranged at the other end of the balloon main body, and the duckbill arranged on the one-way exhaust valve is directly connected with the tracheal cannula of a patient. The adult simple breathing training balloon is directly connected with the tracheal cannula of a patient, by pressing the balloon, the therapist or the nurse can perform the breathing training for the patient with clearconsciousness, and can directly carry out the lung breathing training for patients with unconsciousness by observing the breathing situation of the patient.

An integrated odor-resisting exhaust device for a squatting pan comprises a pan body, an air bellow, an exhaust fan, a front air pipe and a rear air pipe. An exhaust tank is arranged on an edge opening of the upper portion of an inner cavity of the pan body and is communicated with the inner cavity of the pan body through a strip-shaped clearance, and an air pipe joint is arranged at the upper end of the pan body and communicated with the exhaust tank through a cavity channel. The exhaust fan is arranged in the air bellow, and separates the interior of the air bellow into an air inlet cavity and an exhaust cavity. An air inlet is formed in the lower end of the air bellow, an exhaust opening is formed in the upper end of the air bellow, the air inlet is located in the air inlet cavity, and the exhaust opening is located in the exhaust cavity. One end of the front air pipe is communicated with the air inlet, and the other end of the front air pipe is communicated with the air pipe joint. One end of the rear air pipe is communicated with the exhaust opening, and the other end of the rear air pipe serves as an exhaust end. The exhaust fan is started when a person goes to the toilet, odors emitted by dirt in the pan body sequentially pass through the exhaust tank, the cavity channel and the front air pipe, enter the air bellow, and are finally exhausted to the outside through the rear air pipe. The exhaust height is lower than the nasal cavity of people, the exhaust path does not pass through the nose of people, and odors and peculiar smells generated in the toilet are effectively restrained.

The invention discloses components of a high-performance getter alloy. The high-performance getter alloy comprises the following components of, in parts by mass, 40-80 parts of zircon, 12-18 parts ofa material A and 0-6 parts of a material B; the material A comprises the following components of, in percentage by weight, 20%-30% of graphite, 5%-15% of vanadium, 1%-8% of niobium and the balance iron; and the material B comprises the following components of, in percentage by weight, 10%-20% of nickel, 6%-14% of chromium, 3%-12% of aluminum, 5%-15% of cobalt and the balance iron. The invention further discloses a processing method of the high-performance getter alloy. The air suction rate and the air suction capacity of the machined getter alloy are greatly improved, the air suction performance of the getter alloy is greatly improved, meanwhile, the activation temperature of the getter alloy is reduced, the cost is saved, and the purposes of energy conservation and consumption reduction are achieved.

The vortex rotary compressor includes a compressor body; a vortex compressor comprising static scroll and movable scroll inside the compressor body, main shaft driving the movable scrolls to rotate, and limiting block to avoid the rotation of the movable scroll; and a sliding vane compressor coaxial with the vortex compressor. The vortex compressor has inlet connected to the outlet inlet of the sliding vane compressor, and compressing cavity communicated with the flow channel inside the compressor body, the flow channel inside the rotor of the sliding vane compressor and the sliding vane slot inside the sliding vane of the sliding vane compressor. The vortex rotary compressor has the characteristics of both vortex compression and rotary sliding vane compression, greatly raised gas compression ratio and displacement amount and expanded use range.

The invention discloses a self-air-suction flotation machine impeller and a self-air-suction flotation machine, the self-air-suction flotation machine impeller is used for the self-air-suction flotation machine and comprises a center hub(9)and a plurality of blades(2), and the blades(2)are evenly distributed and fixed to the outer cylindrical surface of the center hub(9)in the circumferential direction and are parallel to the center hub(9)in the axial direction. The blades(2)are provided with functional parameter influencing parts for adjusting functional parameters of the blades; the invention provides a self-suction flotation machine impeller design method based on blade area influence analysis of each area. The air suction capacity, the pumping capacity and the energy consumption of theflotation machine are adjusted, and under the constraint condition that the linear speed of the impeller is certain, the problems that the self-air-suction flotation machine cannot guarantee that other properties are basically unchanged, and the air suction capacity and the circulation capacity are independently adjusted or the equipment operation energy consumption is controlled can be solved. The problem of coarse particle deposition of the self-suction flotation machine, especially a large self-suction flotation machine can be effectively solved, and meanwhile the stirring and mixing effect of mineral particles is improved. And the air suction amount is increased, and the ore pulp circulation amount is increased, so that the collision probability of mineral particles and bubbles is increased, and the sorting performance is improved. And meanwhile, the requirement for large-air-suction-capacity mineral separation can be met.