56 results about "Linear loss" patented technology

The invention discloses a dynamic lossless compressing method for real-time historical data in an industrial production procedure, which comprises the following steps: storing the latest real-time data firstly in a compressing buffer area according to a time slice; processing lossless storage to all dynamic real-time data more than a threshold value in each preset time slice; after processing the data in the compressing buffer area in a method of only storing characteristic values of stable-state real-time data with little change according to different preset modes, then, storing the data in a historical data buffer area and a historical data file timely. The method disclosed by the invention realizes computer programming conveniently; filtering distortion phenomenon of each current linear loss compressing algorithm is solved; in addition, integral compressing efficiency of the data is increased on a condition of ensuring relatively high data fidelity.

The invention discloses a high-stability all-solid-state laser which comprises an all-solid-state laser, a Lambada second wave sheet, a polarization spectrometer, a photoelectric detector, a proportion integration differentiation (PID) controller and a temperature controller, wherein a non-linear frequency doubling crystal is inserted into a resonant cavity of the all-solid-state laser, an output light beam of the all-solid-state laser sequentially passes through the Lambada second wave sheet and the polarization spectrometer, reflected light of the polarization spectrometer enters the photoelectric detector, the output end of the photoelectric detector is connected with the PID controller, the output end of the PID controller is connected with a temperature setting end of the temperature controller, the working temperature of the non-linear frequency doubling crystal in the all-solid-state laser is controlled by the temperature controller, and transmission light of the polarization spectrometer serves as system output light. In the high-stability all-solid-state laser, the non-linear loss in a laser cavity is changed by controlling the working temperature of the non-linear frequency doubling crystal, the power fluctuation of the laser is compensated, and high-stability laser output is obtained.

The invention relates to an internal spiral groove oil suction pipe for a variable-frequency refrigerator compressor, and belongs to the technical field of refrigeration compressor accessories. The internal spiral groove oil suction pipe comprises an oil suction pipe main body and embedded internal spiral grooves, wherein more than one embedded internal spiral grooves which are conical and coaxial with the oil suction pipe main body are formed in the oil suction pipe main body; a cylindrical part of the oil suction pipe main body is fixed through a center hole of a motor rotor, and then connected with the end face of a crankshaft. The internal spiral groove oil suction pipe disclosed by the invention uses an embedded internal spiral groove structure, and is low in oil suction resistance, high in oil pumping capacity, good in lubricating effect, low in linear loss, and long in service life; the compressor is stable and reliable in working; the oil suction pipe main body is fixed through the center hole of the motor rotor, and then connected with the end face of the crankshaft, so that the oil suction pipe is convenient to assemble and simple in manufacturing technology; the internal spiral groove oil suction pipe solves the problems that the existing oil suction pipe is high in oil pumping resistance and low in oil pumping capacity, and has high probability of causing lubrication failure to severely influence the service life of the variable-frequency compressor as an external thread structure is used, and the oil suction pipe is assembled together with the crankshaft or the motor rotor through a tail sleeve.

The invention discloses a method for judging the chemical-viscosity-reduction assisted thickened-oil screw pump lifting technology. The method includes: determining relevant parameters of oil-deposit oil wells produced and developed, determining lift of a screw pump through oil deposit depth, determining lifting speed according to daily output, performing subsection calculation on the oil wells, and calculating friction loss of each section in subsection iteration; summarizing linear loss and wellhead back pressure, comparing the sum of the linear loss and the wellhead back pressure with the lift of the screw pump, and if values are different, repeating the step after viscosity-temperature curves are changed till the values are identical; calculating viscosity of crude oil, corresponding to reservoir temperature, at the position of the downhole through the viscosity-temperature curves. Screw pump lifting is prepared for mining of thickened oil, the chemical viscosity reduction technology is matched in order to prevent insufficient lifting capacity, and certain guidance is given whether to adopt screw pump or not in on-site production and development of shallow thickened oil.

The invention relates to a flow mixer integrating post-mixing injection and self-oscillation. The flow mixer comprises a high-pressure water nozzle, an abrasive inlet, a mixing oscillation cavity and a mixing nozzle. Water discharged from a high-pressure pump is accelerated through the high-pressure water nozzle and enters the oscillation cavity, negative pressure is formed in the cavity to allow abrasive to be sucked into the oscillation cavity from the abrasive inlet, the abrasive is sufficiently oscillated and mixed with high-pressure water and accelerated, the mixed and accelerated fluid is sprayed out through the mixing nozzle, and a high-pressure abrasive water jet is formed. The flow mixer has the advantages that the flow mixer is reasonable and compact in structure and convenient to use; the abrasive jet sprayed out by the post-mixing type abrasive nozzle can reduce the abrasion time of a conveying pipe wall and is low in linear loss, less prone to accumulation and capable of preventing pipeline blocking; the jet form using self-oscillation pulses allows the variable-pressure feature and cavitation effect to be enhanced, and work efficiency is increased greatly.

The invention discloses an oil field water injection simulation experiment platform and mainly aims to provide a water injection simulation experiment device. The oil field water injection simulationexperiment platform is characterized in that the oil field water injection simulation experiment platform comprises a pipe network system, a simulated well system, a supporting frame structure, a baseplate mechanism and a work station; the pipe network comprises a spiral pipeline, a flow direction measuring device and a multi-way valve; the simulated well system comprises a plurality of simulatedwell units and is used for simulating the well mouth pressure in actual water injection; the supporting frame structure comprises two parts of a hydraulic vertical column unit and a frame unit, the base plate mechanism is divided into an upper layer and a lower layer and comprises a lower base plate and an upper base plate, and a hydraulic travelling mechanism is mounted on the lower base plate and can drive a whole system to move in the front-back direction and the left-right direction; and the work station comprises a water tank, a waster pump, a hydraulic oil tank and a valve box. According to the water injection simulation experiment device, the linear loss in well mouth pressure and actual oil field water injection can be simulated, the length of a spiral pipe and the number of wellmouths can be flexibly combined, the diversified simulation conditions can be met, an oil field water injection system is simulated, a water injecting pump is adjusted to reach the optimum displacement, and energy and water resources are saved.

The invention relates to an efficient snakelike heat exchange device utilizing the Dean Vortice effect. The efficient snakelike heat exchange device utilizing the Dean Vortice effect comprises a shell, a cooling medium inlet, a cooling medium outlet, a process medium inlet, a process medium outlet, a support and the like. When fluid medium flows in a snakelike heat exchange pipe, the Dean Vorticewith symmetrical vertex core distribution can be formed, and a remarkable acceleration function is achieved on fluid heat exchange. According to the efficient snakelike heat exchange device utilizingthe Dean Vortice effect, by analyzing and evaluating the intensity of the Dean Vortice and the heat exchange efficiency, the Dean Vortice intensity index corresponding to the optimum heat exchange efficiency is selected, optimal design is conducted on the structural parameter of the snakelike heat exchange pipe and the dimension parameter of the shell of the efficient snakelike heat exchange device, so that the fluid medium can reach the full turbulence state in the tube pass flowing process under the conditions of a small resistance force and linear loss, the thicknesses of a flow boundary layer and a temperature boundary layer close to the tube wall can be effectively lowered, the initiative convection heat exchange process is enhanced in the medium flow process, and the overall heat exchange efficiency of the efficient snakelike heat exchange device utilizing the Dean Vortice effect is improved. The efficient snakelike heat exchange device utilizing the Dean Vortice effect can be widely applied to the fields of oil refining, chemical industry, light industry, sewage treatment and the like and is wide in application range, high in heat exchange efficiency, excellent in performance and high in practicability,

The invention discloses a dynamic lossless compressing method for real-time historical data in an industrial production procedure, which comprises the following steps: storing the latest real-time data firstly in a compressing buffer area according to a time slice; processing lossless storage to all dynamic real-time data more than a threshold value in each preset time slice; after processing the data in the compressing buffer area in a method of only storing characteristic values of stable-state real-time data with little change according to different preset modes, then, storing the data in a historical data buffer area and a historical data file timely. The method disclosed by the invention realizes computer programming conveniently; filtering distortion phenomenon of each current linear loss compressing algorithm is solved; in addition, integral compressing efficiency of the data is increased on a condition of ensuring relatively high data fidelity.

The invention discloses an artificial joint-like piece curved surface turbulence simulating polishing device and a method thereof. The device comprises a glass constraint component, a profiling electromagnetic wave heater, a temperature detection device, a supporting frame and an electromagnetic wave controller, wherein the glass constraint component is arranged outside an artificial joint-like piece in a sleeving way; the inner surface of the glass constraint component and the curved surface of the artificial joint-like piece form a profiling runner with uniform thickness; the profiling electromagnetic wave heater is arranged on one side of the glass constraint component; the profiling electromagnetic wave heater comprises an outer cover, heating sources, a concave lens and a convex lens; and each heating source of the profiling electromagnetic wave heater is electrically connected with the electromagnetic wave controller and is independently controlled by the electromagnetic wave controller. One heating source is placed on the side surface of the glass constraint component, the turbulence energy and the speed of abrasive flow cutting fluid are increased, and the linear loss and the head loss of the abrasive flow in the profiling runner are compensated, so that the whole processing effect is improved and the surface processing quality of the artificial joint-like piece is more uniform.