63results about How to "Continuous injection" patented technology

The invention discloses a method for efficiently improving the permeability of a coal body by utilizing liquid nitrogen-hot gas cold and hot cycle impact. Liquid nitrogen is injected and gasified forabsorbing heat to quickly reduce the temperature of the coal body, and water in the coal body is iced and expanded to apply icing expansive force to the coal body for cracking; meanwhile, the gasifiednitrogen rapidly expands in volume to apply gas expansion force to the coal body for cracking, the gas pressure in a drill hole is rapidly increased, and the nitrogen is exhausted through an exhaustpipe; then, after liquid nitrogen injection is stopped, the liquid nitrogen is continuously gasified and expanded in the layer-crossing drill hole to apply gas expansion force to the coal body for cracking, and the gasified nitrogen flows back and is recycled, so that subsequent repeated use is facilitated; hot steam is injected to apply gas impact force to the coal body for cracking, meanwhile, the temperature of the coal body is rapidly increased, and the coal body is cracked through the temperature difference; then the hot steam is discharged out of the layer-crossing drill hole, so that the gas pressure in the layer-crossing drill hole is reduced, and the hot steam can be continuously injected; and the steps are repeated for cycle to carry out cold and hot alternation to impact the coal body, therefore, the permeability improvement time is effectively shortened, and the permeability improvement effect is ensured.

The invention discloses an adjustable precise continuous injector. The adjustable precise continuous injector comprises needle cylinders, a needle bed, an injection arm and an injection piston, and is characterized in that the needle cylinders comprise a first needle cylinder and a second needle cylinder, a liquid absorbing arm is arranged in the first needle cylinder, the top end of the liquid absorbing arm is connected with a liquid absorbing pull plate, the bottom end of the liquid absorbing arm is connected with the injection piston, the liquid absorbing arm is a ladder-shaped piston arm, a control device is arranged outside the second needle cylinder, the injection arm is arranged inside the second needle cylinder, the upper end of the injection arm is connected with an injection pressing plate, quantifying threads are arranged on the injection arm, the injection arm is connected with a second power device, a locator is further arranged in the second needle cylinder, one end of the locator is connected with a first power device, the other end of the locator extends into the first needle cylinder to be matched with a ladder-shaped piston, and a power supply device is arranged at the lower part of the second needle cylinder. The adjustable precise continuous injector has the advantages that the structure is simple, the use is convenient, the labor intensity is low, multiple times of injection can be carried out through one-time extraction of liquid medicine, the dosage can be rapidly adjusted at any time, the dosage is accurate, and the operation errors are small.

In a combustion space of a combustion engine, an inlet valve to supplies a gaseous medium which contains oxygen to the combustion space. A movable piston to compress the gaseous medium in the combustion spaces. An injector injects fuel in the combustion space in a jet which comprises a multiplicity of small fuel drops. The injector injects fuel in the combustion space at such a high initial velocity that the fuel injected in the jet mixes with the gaseous medium to form a substantially homogeneous mixture before the mixture has been decelerated to a velocity at which the fuel ignites and burns. Devices may cool the gaseous medium and the fuel before entry into the combustion space.

The invention discloses a resin transfer molding forming glue injection machine of continuous fiber reinforced PBT (polybutylece terephthalate) composite materials. The resin transfer molding forming glue injection machine comprises a first material tank, a second material tank and a third material tank, wherein the first material tank is used for containing monomers and heating the monomers, and the second material tank is used for containing catalysts. The monomers and the catalysts are respectively conveyed to the third material tank through respective metering devices to be mixed into glue injection raw materials, the glue injection raw materials are filled into a mold through a material outlet arranged at the bottom end of the third material tank and a connecting pipeline for carrying out molding forming, and in addition, the size of the third material tank is greater than the size of the mold for containing the glue injection raw materials. The automatic glue injection machine provided by the invention has the advantages that the metering blending and the glue injection can be automatically carried out, the process is continuous, and the glue injection efficiency is high.

The invention discloses a continuous carbon fiber reinforced PEKK prepreg production process and equipment, relates to the technical field of continuous carbon fiber reinforced PEKK prepreg production, and is mainly used for solving the problem that industrial production of continuous carbon fiber reinforced PEKK prepregs cannot be realized in China at present. The continuous carbon fiber reinforced PEKK prepreg production process comprises the following steps: 1, performing unwinding and leveling; 2, performing carding; 3, spreading the yarns and removing a sizing agent; 4, performing gluing; 5, performing primary gum dipping; 6, performing secondary gum dipping; 7, performing cooling; 8, performing online detection; and 9, performing winding. The equipment structurally comprises a creel, a guide roller set, a grate, a high-temperature drying oven, gluing molds, an extrusion dipping roller set, a dipping device, a cooling platform, an online detector, a traction roller set and a winding device. According to the continuous carbon fiber reinforced PEKK prepreg production process and equipment provided by the invention, the industrial production of the continuous carbon fiber reinforced PEKK prepreg can be completed by utilizing the process and the equipment.

The present application relates to a method for simultaneously detecting four isomers of resveratrol in peanut by using ultra performance liquid chromatography during the operation procedure and accurately controlling the detection conditions. The method of the invention can achieve continuous sample injection, and perform sample analysis in batch. The detection time for each sample is only about 10 min, which greatly improves the detection efficiency. Further, the ultra performance liquid chromatography has high sensitivity and a low detection limit. The method of the invention adopts ethanol extraction under heating in the earlier stage of extraction, and controls the temperature of the extraction, so as to achieve effective extraction of four isomers of resveratrol, time saving, and efficient extraction and separation.

The invention relates to a piston pump for thick matter, in particular for high-solids sewage sludge, coal sludge and concrete. The piston pump has at least one delivery cylinder (16) which contains a motor-driven or hydraulically driven delivery piston (20) and which has an orifice (12) which communicates alternately with the interior of a material feed container (10) and with a pressure delivery line (30) in a slide-controlled manner in accordance with the movement of the delivery piston (20). In order to significantly increase the degree of filling of the at least one delivery cylinder (16), an annular nozzle (32) opening into the delivery cylinder (16) in the region of the orifice (12) is provided, and this annular nozzle (32) is connected to an external pressure line (34) to which a lubricant can be admitted.

The invention provides a mechanical arm device for vaccine injection, an injection system and a numerical control system. The injection system is controlled through the numerical control system. The injection system comprises a driving unit, an injection unit and a sterilization unit. The numerical control system firstly identifies the age and gender of an injected object through an infrared identification system, then accurately positions blood vessel and muscle positions of human body vaccine injection to determine an injection position, and controls the sterilization unit to sterilize and disinfect the injection position; and the driving unit is used for driving the injection unit to inject a vaccine to the injection position. According to the scheme, the mechanical arm device is convenient to operate and convenient to assemble, use and maintain; traditional human eye recognition is replaced with infrared intelligent positioning of the injection position, so that the injection position is more accurate, the operation is safer, and metering injection can be achieved; and the infrared identification system can accurately position the blood vessel position of human body vaccine injection, and the numerical control system can accurately control all rotating shafts of a mechanical arm.

The invention discloses a self-cleaning type nano-colloid jet-flow polishing device. A plunger pump (4) is mounted on a first pipeline (1) and a second pipeline (5); a nano-colloid container (1) is connected with the first pipeline (1) and a fifth pipeline (21); a cleaning device (23) is connected with a sixth pipeline (22) and a seventh pipeline (27); a pressurized energy accumulation device (8)is mounted on a third pipeline (7) and a fourth pipeline (9); a cavitation jet-flow spraying nozzle (14) is mounted at the tail end of the fourth pipeline (9); laser sensors (29) are arranged on the third pipeline, the fifth pipeline and the spraying nozzle respectively and are mounted in a non-contact manner. By adopting the self-cleaning type nano-colloid jet-flow polishing device, the problemsof a common nano-colloid jet-flow device that nano-colloid is easy to deposit and easy to pollute, nano-colloid liquid flow cannot be continuously sprayed, the device is uneasy to wash and maintain, and the jet-flow polishing efficiency of an optical element is low and the like are solved; sealed type circulation of a nano-colloid solution is realized.

The invention provides an annulus protection fluid for a CO2 flooding injection well and a preparation method thereof. The annulus protection fluid comprises a corrosion inhibitor, a density regulator, a sterilizing agent, a pH regulator, alcohol and water. The annulus protection fluid provided by the invention has good synergy in components, so the problem of corrosion of CO2 injection well annulus can be controlled; and the annulus protection fluid has the advantages of large density regulation range, good sterilization effect, excellent pH value control effect, capability of well inhibitingcorrosion of an oil sleeve pipe, low environmentally-friendly preparation cost, low freezing point and the like, and is simple, convenient and easily-operable in on-site preparation method, reliableand stable in performances and easy in storage. According to the invention, the annulus protection fluid for the CO2 flooding injection well and the preparation method thereof are applicable to annular space of oil production wells and gas injection and water injection wells, and can well control the problem of corrosion of annulus oil sleeve pipes.

The invention belongs to the technical field of tobacco processing equipment, and particularly relates to a negative pressure adsorption rotary cigarette hole size detection device. The device comprises a feeding system, an adsorption rotating system, a detecting system and a data processing system. The feeding system comprises an obliquely arranged smoke groove, and the open end of the smoke groove is provided with an arc-shaped placing groove; the adsorption rotating system comprises a rotating seat, a moving seat and a cylinder, the rotating seat is located at one side of the smoke groove,the end portion of the rotating seat is provided with an arc-shaped adsorption plate, the arc-shaped adsorption plate is located at the inclined top of a cigarette in the arc-shaped placing groove, and the rotating seat is rotationally connected with the moving seat; and the detection system comprises a light source and a camera which are located at the inclined top of the arc-shaped placing groove. The objective of the invention is to overcome the problem that a current device cannot measure the size of a punching cigarette hole of online tipping paper in a lossless mode and meet the demand of effective monitoring of the quality of the punching cigarette hole of the online tipping paper so as to achieve the purpose of control of the operation condition of the nozzle ventilation efficiencystability and the online laser punching device.

The invention belongs to the technical field of in-situ leaching uranium mining experimental equipment, and particularly relates to an in-situ leaching uranium mining full-process circulation experimental device. A constant-speed constant-pressure double-cylinder pump is connected with a high-pressure test column through a leaching agent liquid inlet valve, wherein a column leaching port pressureregulating valve is arranged at an outlet of the high-pressure test column; the column leaching port pressure regulating valve is connected with the upper part of an ion exchange column after passingthrough a leaching agent liquid outlet valve; the lower part of the ion exchange column is connected into a liquid collecting tank through an adsorption tail liquid valve; the liquid collecting tank is connected to a stirring tank through a reciprocating plunger pump and a liquid collecting valve; an oxygen steel cylinder is connected to the stirring tank through an oxygen pressure regulating valve, an oxygen flow controller and an oxygen one-way valve; a carbon dioxide steel cylinder is connected to the stirring tank through a carbon dioxide pressure regulating valve, a carbon dioxide flow controller and a carbon dioxide one-way valve; the stirring tank is connected to the constant-speed constant-pressure double-cylinder pump through a liquid distribution valve; and the column leaching port pressure regulating valve is connected to the liquid collecting tank through a leaching liquid non-adsorption valve. The whole equipment process is a process circulation process, only transparent pipelines need to be checked and replaced at regular intervals, and operation is convenient.

The invention belongs to the technical field of detecting devices and relates to a device for the non-destructive detection of cigarette holes. The device comprises a detecting system and a data processing system; the detecting system comprises a rotation gripper and an imaging mechanism; the rotation gripper is used for clamping and fixing cigarettes to be detected and driving the cigarettes to be detected to rotate; the imaging mechanism is used for capturing hole images; and the data processing system is in signal connection with the imaging mechanism and is used for calculating hole imageinformation transmitted by the imaging mechanism so as to obtain hole parameters on cigarette tipping paper. With the device of the invention adopted, the problem that an existing device fails to perform non-destructive measurement on the size of cigarette holes during online tipping paper perforating can be solved; a requirement for the effective monitoring of the perforating quality of the cigarette holes during the online tipping paper perforating can be satisfied; and the stability of the control of the ventilation rate of filter tips and the operating condition of online laser perforatingequipment can be realized.

The invention discloses a brucellosis vaccine needle-free injection system and application. The brucellosis vaccine needle-free injection system comprises a container filled with a brucellosis vaccine and a readable carrier. Content recorded in the readable carrier includes that needle-free injection dosage of the brucellosis vaccine is not larger than the standard dosage of the brucellosis vaccine. Experiments prove that when a needle-free injection ampoule and a needle-free syringe are combined and used for immunization, the antigen dosage only accounts for part of a traditional intramuscular injection antigen dosage, and the same or better immune effect can be achieved. It is further indicated that a needle-free immune mode is an ideal strategy capable of being selected by the brucellosis immunization vaccine.

The invention discloses a continuous liquid sample injection system and a control method thereof. The continuous sample injection of samples is realized by using two or more injection pumps. The system comprises two or more multi-channel rotary valves of which the number is same as that of the injection pumps, the liquid outlet of each injection pump is connected with a liquid path inlet of the multi-channel rotary valve corresponding to the injection pump, and each multi-channel rotary valve comprises at least two liquid path outlets, wherein one liquid path outlet corresponds to a sample source, and the other liquid path outlet corresponds to a detection chamber; and the liquid path outlets, corresponding to the sample source or the detection chamber, of all the multi-channel rotary valves are converged together through a pipeline and then are communicated with the sample source or the detection chamber. The system and the control method provided by the invention can overcome the problem that a single injection pump cannot realize the continuous sample injection, and realize the continuous, accurate and stable sample injection on the premise of protecting vulnerable samples.