41 results about "Vacuum pump" patented technology

The invention discloses a pressure balance system of an automatic ELISA (Enzyme-Linked Immunosorbent Assay) plate washer and the ELISA plate washer. The ELISA plate washer comprises a cleaning head, a vacuum pump and a plurality of lotion bottles for providing lotion for a lotion needle of the cleaning head; and the pressure balance system comprises a first multi-path joint, a main exhaust pipe and at least one auxiliary exhaust pipe, wherein the first multi-path joint is connected with the vacuum pump and the lotion bottles and used for balancing the pressure suffered by the lotion bottles, the main exhaust pipe and the at least one auxiliary exhaust pipe are respectively connected with the first multi-path joint and used for discharging air outside, and a switch is arranged on the auxiliary exhaust pipe and connected with a control circuit for controlling the on and off of the switch. According to the invention, the pressure balance system is arranged in the ELISA plate washer, so that the pressure of a pipeline in the ELISA plate washer can be adjusted automatically, the pressure generated by the vacuum pump can be matched with the flow of the lotion needle on the cleaning head automatically, the flowing rate of the lotion distributed for the lotion needle by the cleaning head can be kept consistent under any state, so that when a large plate washer is used for few pore plates, the damage of an instrument as part of washing channel is closed and excessive overflowing liquid overflows a tray and enters the machine can be prevented.

The invention provides an efficient defoaming solvent-free composite mixing unit cylinder which comprises a cylinder body. The bottom of the cylinder body is communicated with a discharge port. A cylinder cover is installed at the upper end of the cylinder body. A motor base is installed at a spindle hole of the cylinder cover. The motor base is provided with a stirring motor. The cylinder cover is also communicated with a vacuum tube and a feed pipe. A transmission shaft of the stirring motor extends downwards into the cylinder body. The transmission shaft is in transmission connection with a stir rod through a coupling. Screw vanes are arranged on the circumferential surface of the stir rod. A material pumping sleeve sleeves the periphery of the screw vanes of the stir rod. A lower end socket of the stir rod, which extends downwards out of the material pumping sleeve, is fixedly provided with stirring vanes. An umbrella-shaped body is arranged on the outer wall of the upper part of the material pumping sleeve, and the wall of the material pumping sleeve above the umbrella-shaped body is provided with a material discharging opening. According to the unit, a feed liquid is stirred with the stirring vanes in cooperation with vacuum-pumping for defoaming, and the feed liquid at the bottom of the cylinder is pumped by the use of the screw vanes and then transmitted onto the umbrella-shaped body through the material discharging opening to form a thin film, so as to realize rapid defoaming.

The invention discloses an oil gas purification recycling device, tail gas purification recycling device and method thereof, relating to the technical field of oil gas recycling and aiming to solve the problems of high cost and poor recycling effect of the traditional oil gas recycling devices. The tail gas purification recycling device comprises at least two adsorption towers, wherein a product gas outlet of a first adsorption tower is controllably or uncontrollably connected with a raw material gas inlet of a second adsorption tower; a raw material gas inlet of the first adsorption tower iscontrollably connected with tail gas recycled by the oil gas and is controllably connected with a vacuum pump; and a product gas outlet of the second adsorption tower is respectively connected with pipelines for receiving evacuating air through two sequencing valves, wherein one sequencing valve controls evacuating air in the adsorption tower to be exhausted to the pipelines and the other sequencing valve controls the evacuating air to enter the second adsorption tower.

The invention discloses an embedded microwave cyclic adsorption-desorption column, comprising an adsorption-desorption column main body and a bottom fixing tripod. The side surface of the lower part of the main body is provided with a gas inlet. A material separating screen is disposed above the gas inlet in the main body. A supporting plate is disposed at the bottom of the material separating screen. The top of the main body is provided with a filler port, a gas outlet and a spare port. The bottom of the main body is provided with a dreg discharging port and a vacuum desorption port connectedto a vacuum pump. The side surface of the lower part of the main body is provided with a material discharging port above the material separating screen. A plurality of temperature sensing points aredisposed in the main body. A microwave heater is mounted in the main body in a horizontal embedded manner or a longitudinal embedded manner. The adsorption-desorption column increases the desorption efficiency and desorption effects through a composite desorption manner combining embedded microwave heating and vacuumization, and occupies a space smaller than the space occupied by an existing microwave desorption device.

The invention discloses a tubular film evaporator for polyester production, comprising a shell which is provided with a feed inlet and a vacuum extract opening at the top. A feed outlet is arranged at the bottom of the shell. At least a group of evaporation units is arranged below the feed inlet inside the shell, and each group of evaporation units comprises a material receiving funnel and a heat exchange tube. The heat exchange tube is arranged perpendicularly and inserted in the circular hole at the bottom of the material receiving funnel. A circular gap is retained between the periphery of the heat exchange tube and the material receiving funnel. During polyester production, materials flows downwards from the circular gap retained between the periphery of the heat exchange tube and flows downwards in a film shape along the surface of the heat exchange tube and meanwhile, heat exchange occurs between the materials and the heat exchange tube, and the byproducts generated by the reaction overflow continuously and are extracted by a vacuum pump. Because the materials are distributed outside the heat exchange tube, the problem of blockage is solved. The tubular film evaporator has the advantages of good film forming effect, reliable use and high work efficiency and can be used in production of polymers of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylece terephthalate (PBT), PTT and the like.

The invention provides an on-batch pressing testing device for touch control chips. The on-batch pressing testing device comprises a device body, wherein the device body comprises a base; the base isdivided into a positioning layer, a sucking layer and a control layer; the positioning layer, the sucking layer and the control layer are sequentially arranged from top to bottom; a plurality of positioning grooves are formed inside the positioning layer. According to the on-batch pressing testing device, touch control chips to be tested are solidly sucked into the positioning grooves, a piston isdriven by a cylinder to press down imitated fingers to the part above the chips to be tested, pressing action of human fingers is imitated, in the testing process, the force exerted to the surfaces of the chips to be tested from the fingers is kept unchanged when the driving parameters of the cylinder are changed, meanwhile, the situation that the chips to be tested are damaged because of too large pressing forces can be avoided, the on-batch pressing testing device is simple in debugging and good in consistency, the testing efficiency can be improved, great convenience can be brought to on-batch testing, and convenience can be brought to large-scale production and maintenance.

The invention provides the specific technical scheme of a laminated glass forming device. The laminated glass forming device is characterized by comprising a plurality of laminated glass forming units, a vacuum device and a controller, wherein each laminated glass forming unit comprises a preheating chamber, a vacuum chamber, a cooling chamber, a first heat-resisting insulating partition plate anda second heat-resisting insulating partition plate; the vacuum device comprises a vacuum pump and a vacuum tube. The laminated glass forming device disclosed by the invention has the advantages of simple structure and novel design. A preheating section provides s basis for a vacuum high-temperature extrusion forming section, heating time of the vacuum high-temperature extrusion forming section isreduced, the production efficiency is improved, vacuum high-temperature extrusion forming avoids high-pressure production, production risk is reduced, and a cooling stage quickens cooling time of formed laminated glass; meanwhile, the device comprises the plurality of laminated glass forming units, so a plurality of pieces of laminated glass can be produced in one time, and the production efficiency is further improved.

The invention relates to an active pure snake powder capsule and a preparation technique thereof. The invention adopts the technical scheme that the active pure snake powder capsule is prepared from Agkistrodon halys freeze-drying powder and black-tail snake freeze-drying powder according to the weight ratio of 2-3:1. The preparation technique comprises the following steps: delivering the washed Agkistrodon halys and the washed black-tail snake into a freezing dryer and freezing for 7-9 hours at negative 45 DEG C to negative 35 DEG C; starting a vacuum pump and heating to sublimate for 9-11 hours at 25-35 DEG C under a state of the vacuum degree of 1.3-13Pa; heating to sublimate for 11-13 hours at 55-65 DEG C; heating to sublimate for 9-11 hours at 75-85 DEG C; after vacuum drying, pulverizing the Agkistrodon halys and the black-tail snake coarsely by a roller respectively, then pulverizing finely and obtaining Agkistrodon halys freeze-drying powder and black-tail snake freeze-drying powder; and mixing the Agkistrodon halys freeze-drying powder and the black-tail snake freeze-drying powder evenly according to the weight ratio of 2-3:1, sieving with a sieve of 80 meshes and granulating a sieved substance by a capsule granulating machine after sterilizing by microwave. The invention can retain all the effective components of a snake, has curative effect to the three-high and is convenient to eat.

Short-wavelength photons are used to ablate material from a low work function target onto a suitable substrate. The short-wavelength photons are at or below visible wavelength. The elemental composition of the deposit is controlled by the composition of the target and the gaseous environment in which the ablation process is performed. The process is carried out in a deposition chamber to which a short-wavelength laser is mounted and which includes a substrate holder which can be rotated, tilted, heated, or cooled. The target material is mounted onto a holder that spins the target during laser ablation. In addition, the deposition chamber is provided with a vacuum pump, an external gas supply with atomizer and radical generator, a gas generator for producing a flow of molecules on the substrate, and a substrate cleaning device, such as an ion gun. The substrate can be rotated and tilted, for example, whereby only the tip of an emitter can be coated with a low work function material.

The invention provides full-automatic equipment and method for testing the helium diffusion coefficient of a reactor material. The equipment comprises a gas source control valve, a mass flow controller, a flow control valve, a low-vacuum-side vacuum gauge, a gas discharging control valve, a data acquisition card, a test pond control valve, a sample test pond, a sample to be tested, a high-vacuum-side vacuum gauge, a vacuum pump, a vacuum pump control valve, a helium detector, a computer, a helium gas source, a relay and pipelines; a test system comprises a data acquisition card and a computer; the computer is used for receiving, storing and analyzing data of the low-vacuum-side vacuum gauge, the high-vacuum-side vacuum gauge, the mass flow controller and the helium detector, and performing the process flow control on a system through controlling parts, so as to finally realize the automatic testing and result outputting. According to the equipment and the test method, the helium diffusion coefficient of the reactor material can be automatically tested and the problems of complexity in operation and poor test result repeatability in conventional test equipment are solved.

The invention relates to the field of particle imaging and relates to a particle imaging method and a particle imaging device. The particle imaging device mainly comprises a cluster source, a vacuum chamber, a flow divider, an ionic lens I, a gate valve I, an ionic lens II, a gate valve II, a mass filter, a microchannel disk I, a shielding cover, a voltage reference tube, a velocity imaging electrode set, a microchannel disk II, a detector, a laser I and a vacuum pump set, wherein the cluster source comprises a liquid storage tank, a flow controller, a sample feeding tube, an air pipe, an airstorage tank, a protection cavity, a condensing cavity, a heater, a sample cavity, a nozzle and a laser II. An air accumulation and laser evaporation combined method is utilized to generate doped macromolecule clusters, so that the sizes of the clusters are evener; furthermore, the doped measurement in the clusters is accurate and controllable, and the generated clusters can be quickly cooled; a method of switching voltage on an electrode is utilized to effectively gather the clusters, so that the light reaction strength is improved, and the light reaction efficiency is improved.

A method for detecting the penetration type water vapor diffusion coefficient of a large-thickness low-porosity asphalt mixture is disclosed. The method includes molding a large-thickness close-gradedcylinder asphalt mixture test piece to be detected; adding a proper amount of distilled water controlling 100% relative humidity in an opened glass container into the container to prepare a water vapor diffusion device; putting the device into a vacuum drying oven capable of controlling a constant temperature, with P2O5 being disposed in the oven to provide stable humidity in the oven; vacuumizing the vacuum drying oven according to a set negative pressure by utilizing a vacuum pump; weighing everyday and recording the reduced mass of the device, namely the mass of water vapor penetrating theasphalt mixture; and calculating the vapor diffusion coefficient at the specific temperature and in the relative humidity gradient according to an equation. The method can achieve testing of the penetration type water vapor diffusion coefficient of the asphalt mixture at specific temperature in relative humidity gradient and under different negative pressures, significantly shortens testing time,and increases the efficiency. A test material is simple to prepare, the test method is simple and convenient to operate and testing precision is high.

The invention discloses a core heat setting process method comprising the steps: step one, placing a capacitor core in a first baking box, performing vacuum pumping in the first baking box and keepingthe vacuum pressure in the box at 4-7 mbar. According to the core heat setting process method, the capacitor core is placed in the first baking box and 4-7 mbar vacuum pumping treatment is performed.The core cutting layer is examined by the microscope, the number of hollows on the cross section is 3-7/mm and the size of the hollow point is phi0.1-0.6 mm. Compared with the conventional heat setting process that the number of the hollows on the cross section is 15-23/mm and the size of the hollow point is 0.8-1 mm, the effect is obtained and then pretreatment at the temperature of 88-91 DEG Cis performed and the heat is preserved for 3-5 h and then the capacitor core is transferred to a second baking box and the second baking box is filled with nitrogen to raise the temperature by 121-128DEG C and the heat is kept for 3.5-5h. The core cutting layer is detected by the microscope and the thickness of the strengthened layer is 1-8 microns so that the effect is obvious in comparison withthe conventional direct heat setting that the detected thickness of the cross section oxide layer is 20-34 microns.

The invention relates to a preparation method for an earthworm extract solution. The method comprises the following steps: 1) putting the frozen earthworms into a fresh-keeping storehouse, storing for 4 hours, and then putting into a vacuum low-temperature cold air drying machine and drying till the water content of the earthworm is 48-54%; 2) crushing the earthworm dried with cold air, feeding the earthworm powder into a microwave processing device and continuously processing for 3-4 times; 3) adding purified water into the earthworm powder after microwave processing, heating to 45 DEG C, continuously stirring for 50-80 minutes and digesting for 2-4 hours; 4) adjusting pH value of the extracting solution to 5.5, feeding into a grinding machine, continuously grinding for 2 hours, taking out the ground earthworm slurry, feeding into a cooking pot, heating to 80 DEG C, removing steam, adding the earthworm slurry and cooking for 2-5 minutes in the cooking pot; 5) cooling the temperature of the feed liquid in the cooking pot to 60-65 DEG C, taking out the material, utilizing a circulating water type multipurpose vacuum pump to perform vacuum filtration, to obtain the feed liquid after the vacuum filtration, and then filling the feed liquid into a bottle and utilizing steam to sterilize under high pressure; 6) metering, packaging and warehousing.

The invention discloses a vacuum pump convenient to construct and mount. The vacuum pump comprises a shell, a gas inlet and a connecting device. The vacuum pump is characterized in that a motor is fixedly mounted on the outer surface of one end of the shell; an impeller is fixedly connected with a shaft part of the motor; the impeller contacts a rubber block; the rubber block is connected with anouter shell; the gas inlet is formed in the surface of the outer shell; the gas inlet is connected with a water inlet pipeline through a connecting device; an exhaust hole is formed in the surface ofthe shell; the exhaust hole is fixedly connected with a water outlet tube through the connecting device a; the impeller is not arranged in the middle of the shell; a blowing device is adopted to radiate heat of the shell by enhancing air circulation. Since the impeller is eccentrically mounted inside the shell, and conspicuous vibration can be caused in the operation process, a damping cabin is provided for reducing the vibration, impact to a damping bottom plate can be retarded by damping rubber in the damping cabin, the force of a spring device and a damping column a is received by a dampingplate, and thus the impact to the damping plate can be alleviated.

The invention discloses an automatic spraying device applied to an SPE film and an achieving method of the automatic spraying device. The automatic spraying device comprises a case, a guide rail, a catalyst temperature control spraying device, a motor and a PLC control system. The case is provided with a spraying work platform, a vacuum chamber and an equipment box from top to bottom. The spraying work platform is used for containing a film clamp fixing the SPE film, a sintering porous titanium plate is arranged on the platform top of the spraying work platform, and an induction coil is evenly inlaid in the platform top. The equipment box is internally provided with a vacuum pump and a heating device connected with the induction coil. The guide rail is arranged on the side face of the case. The catalyst temperature control spraying device is in sliding connection with the guide rail and is used for spraying a catalyst to the SPE film. The motor is used for controlling the catalyst temperature control spraying device to move along the guide rail. The PLC control system is connected with the catalyst temperature control spraying device, the motor, the heating device and the vacuum pump at the same time. According to the automatic spraying device, the catalytic performance of the catalyst can be guaranteed, meanwhile, film swelling deformation of the SPE film is avoided, the film forming quality is improved, and the requirement for batched manufacturing is met.

The invention belongs to the technical field of seawater desalination, and particularly relates to a heat pump seawater desalination device utilizing an evaporators and a condenser. According to the heat pump seawater desalination device, a refrigerant circulating system comprises a compressor, a condenser, a throttle valve and an evaporator; a first seawater desalination system comprises a firstseawater tank, a first water pump, a condenser, a vacuum pump, a first heat exchanger and a fresh water tank; seawater in the first seawater tank is conveyed to the condenser by the first water pump,and is heated and vaporized to form salt-free water vapor; a second seawater desalination system comprises a second seawater tank, a second water pump and an evaporator; and seawater in the second seawater tank is conveyed into the seawater channel of the evaporator by the second water pump to form salt-free ice. According to the invention, fresh water is prepared by combining the condenser and the evaporator, so that the seawater desalination speed is increased, and the seawater desalination cost is saved.

The present invention discloses production equipment for a pesticide aqueous suspension. The production equipment comprises an emulsion machine, a dispersion grinding kettle, reconcile kettles and a pesticide filling machine, wherein the emulsion machine is connected with the dispersion grinding kettle, the dispersion grinding kettle is connected with the reconcile kettles, the reconcile kettles are connected with the pesticide filling machine, two the reconcile kettles are arranged, and the emulsion machine, the dispersion grinding kettle, the reconcile kettles and the pesticide filling machine are all connected with a feed tank through a vacuum pump. The pesticide aqueous suspension produced by the production equipment disclosed by the present invention is transparent in appearance, high in dispersion and excellent in performance.

A pipeline system of a vacuum pump unit of a waste incineration power plant comprises a first vacuum unit, a first condenser of the first vacuum unit, a second vacuum unit and a second condenser of the second vacuum unit. The first unit comprises a first vacuum pump, a first vacuum pipeline, a first standby pump and a first standby pipeline. The second unit comprises a second vacuum pump, a second vacuum pipeline, a second standby pump and a second standby pipeline. A first new parallel pipeline is additionally arranged between the first vacuum pipeline and the first standby pipeline, a second new parallel pipeline is additionally arranged between the second vacuum pipeline and the second standby pipeline, and a main parallel pipeline is further additionally arranged. And one end of the main parallel pipeline is connected to the first new parallel pipeline, and the other end of the main parallel pipeline is connected to the second new parallel pipeline. And the first standby pump and the second standby pump can be made standby for each other. Shutdown accidents of the vacuum unit are further reduced, and safe operation of connection of the vacuum unit is effectively ensured.

The invention provides a leak-proof protection system which comprises a vacuum pump; the vacuum pump is connected with a polycrystalline furnace respectively through a bypass valve and a pump main valve; one end of a branch of a pipeline is connected with the vacuum pump, and the other end of the branch of the pipeline is respectively connected with two sliding screw rods, so that a leak-proof function can be reached; the polycrystalline furnace is also provided with a heat insulation door plate in a matching way; and a sealing ring is arranged between the heat insulation door plate and the sliding screw rods, so that the air is prevented form entering into a furnace body through the part between the heat insulation door plate and the sliding screw rods. According to the leak-proof protection system, the leakproofness of the polycrystalline furnace can be guaranteed in a way of double insurance through two vacuumizing channels, so that the production quality of the polycrystalline furnace can be better guaranteed.