151results about How to "Improve degassing efficiency" patented technology

The invention relates to a pure purification smelting method of an alloy, in particular to a pure purification smelting method for a nickel-based high-temperature alloy master alloy, and belongs to the technical field of metal smelting. According to the method, pure purification smelting of a master alloy is completed through material distributing and alloy melting, primary refining, alloying andsecondary refining, microalloying controlling and casting. The method has the advantages that the purity of vacuum melting can be effectively improved, the element segregation can be improved, and a nickel-based high-temperature alloy prepared by the method has the advantages that the purity is high, the segregation is low, the quality is remarkably higher than that of an alloy prepared through the existing technology and method, the quality of the nickel-based high-temperature alloy is improved, and the application field is expanded; nickel-based high-temperature alloys with different gradesand marks smelted by adopting the method has good effects; vacuum induction furnaces with the furnace types of 250 kg-grade and 1.5 ton-grade are adopted; and compared with an alloy before smelting and prepared through other technologies and methods, the alloy is remarkably improved in purity and uniformity.

The invention discloses an aluminum melt vacuum treatment system and method. The aluminum melt vacuum treatment system comprises an aluminum melting furnace, a vacuum circulation degassing device, a permanent magnet stirring device and a feeding device, the vacuum circulation degassing device is located above the aluminum melting furnace, the top of the vacuum circulation degassing device is connected with the feeding device in a sealed mode, the vacuum circulation degassing device comprises a vacuum chamber with the side wall provided with an extraction opening and comprises a first channel and a second channel which are located at the bottom of the vacuum chamber and communicate with each other, the first channel and the second channel are inserted into the aluminum smelting furnace, aninert gas inlet is formed in the outer side wall of one of the channels, the permanent magnet stirring device is located at the bottom of the aluminum smelting furnace and comprises an inductor and afrequency converter connected with the inductor, a feeding port is formed in the top of the feeding device, a discharging port is formed in the bottom of the feeding device, and the feeding port and the discharging port can be automatically opened and closed and form an interlocking relation. When the system is used for vacuum treatment of aluminum-based alloy or aluminum-based composite materialmelt, the vacuum degassing efficiency of the aluminum melt is greatly improved, and meanwhile, uniform stirring of alloy elements in the aluminum melt can be achieved.

A degassing device for high-viscosity pure-chitosan spinning solutions having a reaction vessel and stirring device. A feed port and vacuum port are disposed at the upper part of the reaction vessel, an inner cylinder body is fixedly disposed in the center position of the reaction vessel which also has a discharge port, the upper cylinder opening of the inner cylinder body is closed and the lower cylinder opening is open, an umbrella-shaped dispersion plate is fixedly disposed at the periphery of the upper half part of the inner cylinder body, a gap is formed between the outer edge of the umbrella-shaped dispersion plate and the inner wall of the reaction vessel, and small liquid outlet holes are distributed on the part of the inner cylinder body above the umbrella-shaped dispersion plate. The stirring device has a stirring shaft with screw propeller and stirring power unit. The upper end of the stirring shaft is mounted to the stirring power unit, the stirring shaft passes through a mechanical sealing device and enters the reaction vessel with the lower end fixed on a seat-mounted bearing, the stirring shaft is superposed with the axial line of the inner cylinder body, and a gap is formed between the inner wall of the inner cylinder body and screw propeller.

The invention relates to a high-concentration vacuum oil-gas separation device and method for online monitoring transformer oil. The high-concentration vacuum oil-gas separation device is provided with a quantification chamber, a gas well, an oil well, a degassing chamber, a gas collection chamber, a quantification pipe, an anti-vacuum gas pump, a driving motor and oil and gas pipelines, wherein a gas path part of a vacuum degassing machine is formed by the gas collection chamber, the anti-vacuum gas pump and the quantification pipe; the lower end of the quantification chamber is connected with an oil outlet of a transformer oil tank and the degassing chamber respectively and the upper end of the quantification chamber is connected with the gas well; the upper end of the gas well is connected with the gas collection chamber through a gas pipeline and the lower end of the gas well is connected to the upper end of the quantification chamber and the upper end of the oil well; the lower end of the oil well is connected with the degassing chamber and an oil inlet of the transformer oil tank through two branch pipelines respectively; the degassing chamber and the gas collection chamber are separated through a piston and the driving motor is connected with the piston; a gas inlet of the anti-vacuum gas pump is connected with the gas collection chamber and a gas outlet of the anti-vacuum gas pump is connected with the quantification pipe. According to the high-concentration vacuum oil-gas separation device and method provided by the invention, degassing is finished by adopting a vacuum degassing principle and real-time online analysis of dissolved gas in the transformer oil is facilitated; a manner of degassing and collecting gas for a plurality of times is adopted, so that the degassing efficiency is high and the repeatability is good.

The invention provides a launder-type on-line degassing device which comprises a base, a rotary driving device, an upright column, guide rails, a guide bushing, a roller, a chain, a lifting motor, a duplex chain wheel, rotating motors, a transition connection disc, bearing sleeves, a steel frame, hollow shafts, a launder cover, a launder, rotor components and a lower bearing pedestal. Through the demonstration, the launder-type on-line degassing device is stable in degassing performance, high in efficiency, and low in rejection rate, and the labor intensity of workers is reduced greatly.

The invention discloses a degasser, which belongs to the comprehensive logging and gas logging equipment and relates to a device for performing online degassing on the slurry extracted from oil exploration drilling. The degasser is provided with a tank body for containing the slurry and a stirring body, wherein the stirring body is used for extending into the tank body to stir the slurry; the tank body is provided with a slurry inlet and a slurry outlet; the inner cavity of the tank body is set as a level-by-level stirring cavity; the level-by-level stirring cavity is divided into classification chambers by a slurry blocking component in the tank body; the slurry blocking component comprises a first slurry blocking sheet and a second slurry blocking sheet; the first slurry blocking sheet is provided with an outer edge that can be closely combined with the inner wall of the tank body and a channel hole; the outer edge is combined with the tank body; and the channel hole is used for forming a channel of the leakage slurry. The tank body of the degasser is set as a drawer type chamber capable of stirring level by level; and by combining the reasonable configuration of the slurry blocking component, the degasser enables the slurry to be stirred more sufficiently in the stirring chamber of the level so as to realize level-by-level sufficient stirring and level-by-level sufficient degassing.

The invention relates to a method for degassing and deslag in smelting, more specially, to to a refining method of venting, degassing and deslag in 3104 aluminium alloy flat section ingot casting furnace. The refining method of venting, degassing and deslag in 3104 aluminium alloy flat section ingot casting furnace includes kettle furnace, thirteen air bricks built on the fireproofing structure of the furnace bottom, 13 venting pipelines mounted on the furnace bottom, the said refining method for venting, degassing and deslag is that inert gas or inert mixing gas enters into maintaining furnace through the venting pipelines mounted on the bottom of thirteen air bricks, the inert gas adsorbs the impurity in aluminium liquid and then floats with air bubble up to the surface of aluminium liquid and exhausts to obtain the product. The advantage of the invention is: improving the degassing and deslag efficiency; improving the product quality of aluminium alloy flat section ingot; reducing the defect for casting flat section ingot; shortening the cost for producing flat section ingot, improving the productivity and reducing the flow of gas. The invention is usable for aluminium and aluminium alloy casting industry.

The invention discloses an online transformer oil chromatography monitoring system based on a vacuum stirrer. The system comprises a data acquisition unit and a master control computer data processing and fault diagnosis system, wherein the data acquisition unit comprises an oil-gas separator, a chromatographic column, a gas sensor and a CPU (central processing unit), wherein a sampling end of the oil-gas separator is connected with a transformer, an output end of the oil-gas separator is connected to the chromatographic column through a cold trap, an output end of the chromatographic column is connected to the gas sensor, and an output end of the gas sensor is connected to the CPU; the data acquisition unit is connected to the master control computer data processing and fault diagnosis system through a communication network; a vacuum mixing and vibrating degassing device is arranged in the oil-gas separator; a carrier gas generating module is arranged in the data acquisition unit. According to the online transformer oil chromatography monitoring system, a conventional carrier-gas cylinder is replaced with the carrier gas generating module, stable carrier gas is provided for the monitoring system, the data accuracy of the monitoring system is guaranteed, frequent replacement of the carrier-gas cylinder is avoided, and the use is very convenient.

The invention discloses a degasser and a tank body and a stirring body thereof, relating to a device for on-line degassing of slurry extracted from oil exploration drilling. The degasser is provided with the tank body for accommodating the slurry and the stirring body; the stirring body is used for stretching into the tank body to stir the slurry; the tank body is provided with a slurry inlet anda slurry outlet, wherein the tank body is also provided with a seat body; one end of the seat body connected with an installation plate is provided with a gas collecting chamber; the tank body has anairtight structure; and the airtight structure is composed of a slurry outlet structure and the slurry inlet structure and an induced draught exhaust port. The stirring body is composed of a stirringbody central shaft and a plurality of stirring rods; the stirring body central shaft is connected with a transmission shaft; the stirring rods are fixedly arranged on the stirring body central shaft at a preset interval, and the adjacent stirring rods are vertical to each other. An inner chamber of the tank body is arranged into a stepwise stirring chamber, and the stepwise stirring chamber is partitioned into graded chambers by a slurry blocking assembly arranged in the tank body; and the slurry blocking assembly consists of a first slurry blocking piece and a second slurry blocking piece.

The invention discloses a system and method for separating and extracting dissolved gas from environmental water. The system is characterized by comprising a water-quality treatment device, a membrane degassing device, a vacuum collection device and a flow control device. The treatment method is characterized by comprising the following steps of firstly removing impurity particles in the environmental water by virtue of the water-quality treatment device, degassing the dissolved gas in the environmental water by virtue of the membrane degassing device and further discharging degassed environmental water; and finally further pumping and collecting the dissolved gas generated in the membrane degassing device into an gas cylinder by virtue of the vacuum collection device. The system disclosed by the invention has the characteristics of low cost, simple operation, high degassing efficiency, convenient carrying and maintenance, low weight, small size and the like, can be carried by single people and has almost no any application limitation on the extreme field environment so that the system is very suitable for extracting dissolved gas from the environmental water.

The invention discloses an integrated gas-liquid-solid continuous separation device. The device comprises an upper sealing cover, an outer cylinder and a lower sealing cover, and the upper sealing cover, the outer cylinder and the lower sealing cover are connected into a whole through flanges. An upper layer, a middle layer and a lower layer are formed in an inner cavity of the outer cylinder, theupper layer is used for storing oil and gas after primary separation, the middle layer is used for storing oil after secondary separation, the lower layer is used for storing sand and water which arefinally separated, and all the layers are separated through perforated sieve plates and oil absorption felts. Mixed incoming liquid is accelerated to enter a cyclone for primary separation through atangential inlet and a spiral pipe type acceleration flow channel, and then is subjected to secondary separation by oleophylic and hydrophobic oil absorption felts, and continuous separation of a multiphase medium is realized. Multi-stage continuous separation is realized based on the combined action of cyclone separation, settling separation and membrane separation, and high-precision continuousseparation of oil-water-sand-gas four-phase media can be achieved in one device.

The invention discloses a degassing technology in the synthetic process of neoprene. The technology comprises the following steps: neoprene latex with chloroprene monomer enters a first-stage degassing pipe; under the vacuum condition, steam and neoprene latex enter a first-stage separator after steam stripping to obtain first-stage separated gas and first-stage separated neoprene latex; the first-stage separated gas enters a second-stage separator to obtain second-stage separated gas and second-stage separated neoprene latex, the second-stage separated gas enters a third-stage separator to obtain third-stage separated gas and third-stage separated neoprene latex, the third-stage separated gas passes through a water condenser, a chloroprene recycling condenser and a tail gas condenser so that water, chloroprene monomer and toluene are condensed, tail gas is sucked in a first-stage ejector, the ejector is emptied; the first-stage separated neoprene latex, the second-stage separated neoprene latex and the third-stage separated neoprene latex are mixed to enter a second-stage degassing pipe, the mixed gas is flashed under high vacuum degree and then performs first-stage separation twice to obtain final neoprene latex and twice separated gas; the twice separated gas enter first-stage separation twice to obtain final separated gas and final neoprene latex; and the final separated gas is cooled, is sucked by a second-stage ejector and enters a third-stage separator. The process disclosed by the invention has high degree of degassing and high monomer recovery rate which can be more than 90%, the process has low energy consumption; and by adopting the process, the quality of the neoprene product can be increased.

The invention relates to a degassing and dehydrating miniature device for transformer oil. An oil storage tank is connected with a telescopic degassing tank through a three-way electromagnetic valve and a single-pass electromagnetic value B. The telescopic degassing tank is connected with a vacuum buffer tank through a single-pass electromagnetic valve C. The vacuum buffer tank is connected with a vacuum pump through a single-pass electromagnetic valve D. A sampler is connected with the three-way electromagnetic valve through the single-pass electromagnetic valve A and a thin-film filter. An ultrasonic vibrator is fixed at the lower part of a base of the telescopic degassing tank. The telescopic degassing tank is placed in a temperature-controllable air bath. The upper part of the telescopic degassing tank is connected with an electrical repeated propeller through a connection rod. A pressure sensor is installed on a connection pipe of the telescopic degassing tank and the single-pass electronic valve B. A temperature sensor is installed in the air bath. A vacuum pressure sensor is installed on the vacuum buffer tank. The degassing and dehydrating miniature device for the transformer oil uses combination of the electrical repeated propeller, the telescopic degassing tank and the ultrasonic vibration to perform vacuum degassing and dehydration on samples so that degassing efficiency is improved and degassing speed is high.

The invention belongs to the field of high-performance fibers, and particularly relates to a preparation method of poly(p-phenylene benzobisoxazole) fibers. The preparation method comprises the following steps of taking frozen polyphosphoric acid powder, phosphorus pentoxide, 4,6-diaminoresorcinol hydrochloride and terephthalic acid as raw materials, putting the phosphorus pentoxide into a reaction system step by step in a reasonable proportion in a proper time period, and detecting and regulating the apparent viscosity of the materials in real time in a prepolymerization process to ensure that a prepolymer with uniform apparent viscosity is obtained; performing post-polymerization to obtain PBO spinning slurry; and performing dry-jet wet spinning and post-spinning to obtain the finished PBO fibers. The method overcomes the defects that traditional solid raw materials are poor in solvent mixing and dispersing effect, easy to agglomerate and incapable of uniformly reacting, ensures the consistency of a prepolymerization reaction end point, and reduces the process errors. The intrinsic viscosity of the polymer in the same batch in different time periods is small in change and high, the mechanical property of the fibers can be obviously improved, and the quality stability is also improved.

The invention relates to a degassing packaging machine. The degassing packaging machine comprises an electric control cabinet, a driving motor and a stock bin; the stock bin is internally provided with a first micro-pore degassing rod; the bottom of the stock bin is connected with a discharging hole through an air exhausting packing auger; a second micro-pore air exhausting rod vertically runs through the discharging hole; the second micro-pore air exhausting rod is connected with an air exhausting hoisting mechanism; a bag clamping device is further arranged at the discharging hole; and a vibration device is arranged at the lower part of the discharging hole. The packaging machine is used for automatically carrying out a plurality of times of degassing on materials and effectively reducing the air between the materials, so that the compactedness of the materials is increased; and the packaging machine has the advantages of high automatic degree, high degassing efficiency, capability of being adaptive to ultra-light materials and materials with relatively great gas content, and wide applicable range.

The invention provides a passive degasser relating to a device for on line detaching gas in slurry lifted during oil exploration drilling, which is particularly suitable for the passive degasser. The passive degasser comprises a pot body, wherein the pot body is provided with a slurry inlet and a slurry outlet; the upper part of the pot body is the slurry inlet end; the lower end of the pot body is the slurry outlet end; and a slurry treatment body is arranged in the pot body. In the invention, the slurry treatment body is arranged to disperse and degas the slurry to be treated, and under a circumstance of having no power source drive, the slurry can be further diffused, that is fully dispersed, therefore, the degassing efficiency is effectively increased; and an airtight construction is arranged on the pot body to ensure that the slurry can be under an airtight condition in the whole degassing process of the degasser and all the gases collected by a sample air pump are the gases detached in treating the slurry in the pot body so as to provide guarantee for the accuracy of sample gas collecting data and for detecting the true gas content of a stratum.

The invention discloses an air removal device for water tunnels, which increases the flow velocity of water and reduces the pressure of water through gravity settling and vacuumizing and by using an orifice air removal generator, so that air dissolved in the water is expanded into bubbles from air cores at low pressure, and the bubbles dissolved in the water quickly emerge from the water, thereby achieving air-liquid separation. Upper and lower barrel bodies are connected by a flange plate, a cover plate is fixedly connected with the upper barrel body, the cover plate is provided with a water inlet pipe communicated with a sleeve, the sleeve is fixed at the middle position of the downside of the cover plate, a first-level orifice is arranged at the bottom of the sleeve, a second-level orifice and a three-level orifice are fixed below the sleeve, a cleaning tube and a vacuumizing tube are located on both sides of the water inlet pipe and communicated with the upper barrel body, a discharge pipe is arranged on a chassis, and a water outlet pipe is located on one side of the lower barrel body. The air removal device can quickly carry out air removal on a large amount of experimental water for water tunnels, thereby avoiding cavitation and erosion hazards caused by air contained in the water in the process of experiments. The air removal device can be applied to the removal of air contained in oil and the air removal of water for air conditioning circulation.

A degasser for at least partially degassing a gas-containing liquid, in particular for a sample separation device, includes a circulation path along which the liquid can be circulated between a liquid accommodation volume and one of an inlet to a consumer unit consuming degassed liquid or a conduit leading to the inlet, a drive unit configured for circulating the liquid in the circulation path, and a filter in the circulation path for filtering particles or debris out of the liquid, wherein the liquid is forced through the filter by the drive unit. The drive unit includes a movable body, in particular a movable piston or a movable membrane, configured for at least partially degassing the liquid by generating a negative pressure in the liquid.

The invention discloses a charge type vacuum oil filter which comprises an oil loop and a heat conduction oil loop, wherein the oil loop comprises an oil tank for containing oil, a heat exchanger A, an atomizer, a vacuum chamber and an oil pipeline; the heat conduction oil loop comprises a heating tank for containing heat conduction oil, a heat exchanger B and a heat conduction oil pipeline; a heating tube is arranged inside the heating tank; the heat exchanger A is positioned inside the heating tank; and the heat exchanger B is positioned inside the vacuum chamber and below the atomizer. The charge type vacuum oil filter provided by the invention adopts a heat conduction oil indirect low-temperature heating technique, and the oil is heated by using the heat exchanger A, so that damage caused by the fact that the oil is directly heated at high temperature is avoided; the heat exchanger B is used as a reactor to further heat the oil, and the oil mist sprayed on the reactor is formed into an oil film, so that the working efficiency is greatly improved; due to an additionally arranged charging flow mixer and a collector, the filtering precision is improved; and due to an additionally arranged air humidity sensor, the moisture of the oil can be detected on line.

The invention discloses a 66-500kV crosslinked cable short-degassing online treatment process. A process flow comprises conductor preparing; three-layer co-extruding and insulating and online degassing; and degassing in a drying room, wherein the step of three-layer co-extruding and insulating and online degassing specifically comprises three-layer co-extruding of a conductor shielding layer, an insulating layer and an insulating shielding layer; crosslinking; cooling; secondary heating; and cooling; the secondary heating is carried out under protection of nitrogen atmosphere, the nitrogen concentration of the nitrogen atmosphere is controlled over 98%, the nitrogen temperature is controlled at 220+/-5 DEG C, and the conductor temperature is controlled at 90 DEG C. According to the 66-500kV crosslinked cable short-degassing online treatment process disclosed by the invention, the insulating layer is not aged during degassing, the degassing rate is high, the byproduct removal effect is good, the degassing time of the drying room can be greatly shortened, the production period is shortened, and energy is saved and emission is reduced.