38results about How to "Eliminate effusion" patented technology

The invention discloses a biological dressing and making method of large-area skin defection therapy, which is characterized by the following: extracting silk protein from natural silk as the principal raw material; containing silk sponge cellular material single or composite with fabric netted reinforcing layer and perforated macromolecular film on the coverage of cellular material or reinforcing layer. The biological dressing provides good biological compatibility, softness-toughness, permeability of therapy medicine, strength and modulation of wound moisture, which is obvious to accelerate wound assimilation and easy to operate.

The invention relates to a railway coal transportation and dust suppression spraying device. A spraying barrel of the device comprises an outer barrel, an inner barrel and a center infusion tube; the outer barrel is a fixed barrel, the center infusion tube penetrates an outer barrel tube to be fixed to the outer barrel, and the inner barrel is assembled on the center infusion tube through a transmission shaft in a sleeving manner; a liquid inlet of the center infusion tube is connected with a liquid feeding pipe, a spraying nozzle is installed on the center infusion tube, and the outer barrel and the inner barrel are each provided with spraying holes corresponding to nozzles in position; and a liquid return discharging opening communicated with a liquid return pipe is formed in one side end, provided with the outer barrel, of the spraying barrel. The device is provided with a photoelectric inductive switch for detecting a car coupler between a train carriage and a carriage and a shielding mechanism matched with the photoelectric inductive switch to move, and the shielding mechanism controls the inner barrel to rotate to stagger the positions of the spraying holes in the inner barrel and the positions of spraying holes in the outer barrel so as to block a spraying opening of the outer barrel. According to the railway coal transportation and dust suppression spraying device, a dust suppressant cannot be sprayed to the car coupler and the ground between the carriages, liquid in the pipe cannot flow out from the spraying opening after spraying is completed, and the spraying amount can be accurately controlled.

The invention belongs to the technical field of drainage gas recovery process, and specifically provides a low-pressure gas well two-fluid supersonic atomization drainage gas recovery system and a process thereof, wherein a wellbore is taken as a good gas-liquid separator, and gas in a casing pipe is introduced to a Laval nozzle to form supersonic gas flow; by utilizing the characteristic that the air pressure of the casing pipe is higher than that of an oil pipe, accumulated liquid in a well is introduced to a supersonic area of the Laval nozzle through the oil pipe, so as to form a two-fluid supersonic atomization technology. Moreover, through a control method of digitized gas recovery, the ratio of pressure at an inlet to pressure at an outlet, entering an atomizer reaches an atomization condition, through a constant pressure valve switching technology and a diameter extra-long pipe restriction decompression technology, the maximum flow of accumulated liquid entering the atomizer is controlled, the vapor liquid ratio of atomization liquid drainage is reached, and the critical technical problem that the atomizer is liable to block is solved. The system and the process thereof, provided by the invention can effectively utilize energy in the well to perform atomization liquid drainage, solve the problem of accumulated liquid in the well, improve the gas recovery speed and reduce gas recovery cost.

The invention relates to an air-conditioning system and a method for controlling liquid accumulation in a gas-liquid separator. The air-conditioning system includes: an indoor unit heat exchanger (4), a compressor (1) and a gas-liquid separator (3), and the gas-liquid separator ( 3) Set on the refrigerant flow path between the suction port of the compressor (1) and the refrigerant outlet of the indoor unit heat exchanger (4), between the gas-liquid separator (3) and the indoor There is also a refrigerant circulation mechanism between the machine heat exchangers (4), which is used in the refrigeration process, when it is determined that there is refrigerant liquid accumulation in the gas-liquid separator (3) and the refrigerant liquid accumulation exceeds the preset refrigerant liquid accumulation amount When , guide the accumulated liquid of the refrigerant in the gas-liquid separator (3) to the heat exchanger (4) of the indoor unit for evaporation. The invention can effectively solve the liquid accumulation problem of the gas-liquid separator when the air-conditioning system is refrigerated.

The invention provides a split type plunger steel wire liquid draining device. The split type plunger steel wire liquid draining device is divided into an upper part and a lower part, wherein the upper part comprises a steel wire rope connector, an upper weighing rod, an upper sieve pipe, a damper and a lower sieve pipe which are sequentially in threaded connection from top to bottom; the lower part comprises a wing ring, a linkage rod, a plunger and a lower weighing rod, the upper end of the linkage rod penetrates through the wing ring and is connected with the lower sieve pipe, the plunger comprises a plunger sleeve and a plunger rod, the lower ends of the plunger sleeve and the plunger rod are connected and sealed, the lower end of the linkage rod is inserted into the plunger sleeve and is connected with the upper end of the plunger rod, the lower end of the plunger rod is connected with the lower weighing rod, the outer diameter of the plunger sleeve is smaller than the inner diameter of an oil tube, and the density of the plunger sleeve is smaller than that of the lower weighing rod. According to the split type plunger steel wire liquid draining device, the plunger is driven through a steel wire rope, so that a user does not need to be consider whether the energy in a well is sufficient, and the plunger is unlikely to be blocked; by virtue of the damper, the phenomena of twisting and bending of the steel wire rope caused by the upward movement accelerated by relatively high pressure in the well are effectively prevented, and the service life of the steel wire rope is guaranteed; the liquid draining efficiency is high, and accumulated liquid at the bottom of the well can be thoroughly eliminated.

The invention provides a gas well intelligently adjusted production method and device. A gas well intelligently adjusted production method and device belong to the technical field of oilfield digitization. When the oil pressure is higher than a certain pressure value P1, the ability of the gas to carry liquid is in a strong state, the control valve is in a closed flow state, and the downhole controller is at the maximum opening at this time; when the oil pressure is lower than a certain pressure value P2, The ability of gas to carry liquid becomes poor, or it cannot carry liquid. At this time, control the opening of the orifice of the downhole controller and increase the gas flow rate to enhance the ability to carry liquid; for this reason, read the oil pressure and casing pressure of the pressure gauge respectively , combined with the gas production, calculate a reasonable valve opening, and send instructions to the control valve through the control box to make it reach a suitable opening. The control rod of the downhole controller moves to the left until it is balanced because the force on the left side is less than that on the right side. , so that the opening of the orifice is between the maximum opening and the minimum opening, so that the gas flow rate reaches the maximum and the goal of carrying the most liquid is achieved.