9results about How to "Reduce gas volume" patented technology

The present invention relates to a positive electrode active material for a secondary battery which is a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes the nickel (Ni) in an amount of 65 mol% or more and the manganese (Mn) in an amount of 5 mol% or more based on a total amount of transition metals, and at least one particle growth-promoting element selected from the group consisting of strontium (Sr), zirconium (Zr), magnesium (Mg), yttrium (Y), and aluminum (Al), wherein the electrode positive active material is composed of a single particle.

The invention relates to the technical field of liquid injection, and discloses a filling system and a filling method.The filling system comprises a valve set, a first valve set, a second valve set, a third valve set and a fourth valve set, the first valve set and the second valve set are communicated with a first opening of a two-way hydraulic unit, and the third valve set and the fourth valve set are communicated with a second opening of the two-way hydraulic unit; the vacuumizing piece is communicated with the first channel and the third channel; the liquid injection part is communicated with the second channel and the fourth channel; the filling system has a vacuumizing state, a first liquid injection state and a second liquid injection state, in the vacuumizing state, the first channel and the third channel are opened, and the second channel and the fourth channel are closed, in the first liquid injection state, the first channel and the fourth channel are opened, and the second channel and the third channel are closed, and in the second liquid injection state, the second channel and the third channel are opened. The first channel and the fourth channel are closed. The filling system can reduce the gas amount in the two-way hydraulic unit, increase the liquid filling amount in the two-way hydraulic unit, and improve the performance and reliability.

The application belongs to the technical field of defoaming agent preparation, and more particularly relates to a defoaming agent and a defoaming method thereof in petrochemical industry. The defoaming agent is a silicone oil defoaming agent, which comprises the following raw materials in parts by weight: 100-120 parts of dimethyl silicone oil, 6-9 parts of silica sol, 3-4 parts of chitosan, and 10-12 parts of emulsifier. The dimethyl silicone oil is first treated by allyl glycidyl ether and then grafted with tyrosine with an isoelectric point of 5.66. The silica sol is first treated by ammonia water and then surface-modified by hexamethyldisilazane. The pH of the defoaming agent is 7.0. The product obtained by the application has the advantages of high defoaming efficiency and short defoaming time.

This invention discloses a method for cryogenic air separation and a suitable distillation column system. A high-pressure column and a low-pressure column are arranged side-by-side, with a first condenser-evaporator located at the bottom of the low-pressure column and a second condenser-evaporator located at the top. Oxygen-enriched stream from the bottom of the high-pressure column is fed into the low-pressure column for further distillation. The high-pressure liquid nitrogen generated by the first condenser-evaporator is depressurized and separated into gas and liquid phases in a gas-liquid separator. The liquid phase is then combined with the low-pressure liquid nitrogen generated by the second condenser-evaporator, pressurized by a liquid nitrogen pump, and fed into the high-pressure column as reflux liquid. The gaseous product in the gas-liquid separator is combined with the flash gas at the outlet of the liquid nitrogen pump and returned to the low-pressure column.

The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger special for low-temperature heat supply. In order to solve the problems that due to the fact that the temperature of gas is high, the water temperature after heat exchange is high, and discomfort is caused by the fact that the water temperature in a heat supply system is high, the following technical scheme is provided: the device comprises a hollow box body, a gas inlet pipe is arranged at one end of the box body, and a gas outlet pipe is further mounted at one end, away from the gas inlet pipe, of the box body; the air inlet pipe and the air outlet pipe are both communicated with the box body; the partition plate is arranged in the box body and divides the interior of the box body into a heating flow channel and an exhaust flow channel; the circulating mechanism is mounted on the box body and is used for driving water to circulate; and the air flow adjusting assembly is arranged at one end, close to the air outlet pipe, of the air inlet pipe and is mounted in the box body. Heat in high-temperature gas can be recycled, the heating water temperature can be adjusted, and it is ensured that a heat supply system provides a proper temperature.

The application discloses a bonding method and a bonding device. The bonding method comprises the following steps: placing a wafer on a first supporting frame of a vacuum bonder; placing a bonding adhesive on a second supporting frame of the vacuum bonder, one of the first supporting frame and the second supporting frame has a size larger than a size of a cavity of the vacuum bonder, and the other has a size smaller than the size of the cavity; placing a carrier plate and the first supporting frame on opposite sides of the second supporting frame respectively and spacing the carrier plate and the first supporting frame from the bonding adhesive respectively, wherein the carrier plate is adsorbed on a bonding chuck of the vacuum bonder; aligning and approaching the carrier plate, the second supporting frame and the first supporting frame; and reducing the air pressure in the vacuum bonder through a suction port on a housing of the vacuum bonder to bond the carrier plate and the wafer together through the bonding adhesive. The method can reduce the amount of gas to be sucked out of the vacuum bonder, and the size of the first supporting frame or the second supporting frame is larger, which is convenient for taking the bonded combination.

The present application relates to the technical fields of oil and gas pipeline maintenance, in particular to a flange pipeline plugging method, comprising the following steps: S1: clamping and setting the clamping device of covering type at the pipeline leakage point, a gap space is formed between the inner wall of the clamping device of covering type and the outer wall of the pipeline; S2: filling the sealing filler in the gap space along the longitudinal direction of the pipeline; S3: setting the gland at both ends of the clamping device of covering type respectively, one end of each of the glands is inserted into the gap space and pushes against the sealing filler, and the other end is provided with a flange plate connected with the clamping device of covering type through an adjusting screw; S4: the sealing filler is sealed in the gap space by the glands pushing and extruding. The sealing filler is extruded and compacted between the sealing filler and the pipeline, the close contact is tight, the pressure bearing capacity is high, the secondary leakage is not easy to occur, the plugging effect is good, at the same time, the single side pushing and extruding or the double side synchronous pushing and extruding can be adopted according to the leakage amount of the leakage point, and the amount of gas retained between the two sealing fillers is minimized.

The invention relates to a production technology for using furnace method carbon black tail gas as tank method carbon black carrier gas. The invention belongs to the technical field of tank method carbon black production, relates to a production method capable of recycling clean energy, saving energy and reducing consumption, solves the defect that the cost of carrier gas (natural gas) in the existing tank method carbon black production technology is too high, and provides a method for replacing part of the natural gas used for producing the carrier gas by using furnace method carbon black by using tail gas generated by furnace method carbon black. A part of tail gas is taken from an outlet of a furnace-process carbon black tail gas pressurizing fan, is subjected to washing desulfurization, is cooled by a tubular cooler, and is finally further cooled and dewatered by a screw cooler, so that 99% of water in the tail gas is removed, and the original low-calorific-value tail gas is changed into a high-calorific-value clean energy which is applied to tank-process carbon black production and is used as a part of carrier gas (natural gas); the method solves the problem of too high cost of the tank-method carbon black natural gas, and meanwhile, the method is clean energy recycling, and reduces the energy consumption of the tank-method carbon black.

The utility model belongs to the technical field of conveying pipeline, especially a ceramic pipeline combined ceramic inner bypass conveying pipeline, aiming at the existing in new energy, fine chemical, medicine, new material and other fields, some raw materials, additives, intermediates, finished product materials can not exist with metal contact, high abrasion resistance, poor stability, high temperature decomposition, low broken rate requirement and so on, need to have suitable conveying pipeline technology to provide the problem of dense phase conveying carrier, present the following scheme, it includes connector, ceramic material conveying pipe section, ceramic air supplementing straight pipe section, ceramic air supplementing communication pipe section, connecting bolt, throttling bolt, outer tube and bonding seal layer, the utility model can effectively prevent pipe blockage, increase transmission distance, reduce conveying gas pressure and gas volume, balance the conveying speed between each section conveying pipeline, effectively avoid material contact metal, wear resistance, easy to make, long service life.