12 results about "Condensation point" patented technology

The invention relates to the technical field of oil product detection, in particular to a full-automatic condensation point determinator and a determination method.The full-automatic condensation point determinator comprises a base and a test tube, the top of the base is fixedly connected with a mounting base, the surface of the base and the surface of the mounting base are provided with a test bath mechanism and a supporting mechanism, and the test bath mechanism enables a motor to drive a test bath to rotate; the rotation angle of the motor is controlled through a preset program, precise positioning is achieved, the tedious operation of hole-by-hole adjustment of the original structure is avoided, the rotating shaft is locked through mechanical clamping, angle deviation in the testing process is prevented, then manual adjustment is replaced by the motor and the electric push rod, and the test efficiency is improved. The double locking effect is achieved, accidental displacement can be prevented, and precision and efficiency are improved; according to the clamping mechanism, the four arc-shaped clamping plates apply uniform radial pressure through the first springs to clamp the outer wall of the test tube, the inner diameters of the clamping plates are gradually increased from top to bottom, and the clamping mechanism is compatible with test tubes with different outer diameters.

The application relates to the technical field of oil product detection, in particular to a full-automatic condensation point tester and a determination method, which comprises a base and a test tube, the top of the base is fixedly connected with a mounting seat, the surface of the base and the mounting seat is provided with a test bath mechanism and a supporting mechanism, the test bath mechanism enables the test tube placed in the test bath mechanism to be adjusted at multiple angles by rotating the test bath driven by a motor, replaces the original manual bolt structure, controls the rotating angle of the motor through a preset program, realizes accurate positioning, avoids the complicated operation of adjusting each hole in the original structure, prevents the angle from deviating during the test by mechanically clamping and locking the rotating shaft, and then the motor and the electric push rod replace manual adjustment, realize double locking effect, can prevent accidental displacement, and improve the accuracy and efficiency; the clamping mechanism enables four arc-shaped clamping plates to exert uniform radial pressure on the outer wall of the test tube through the first spring, the inner diameter of the clamping plate is designed to gradually increase from top to bottom, and different outer diameter test tubes are compatible.

An electric machine (1, 1a, 1b) is described, comprising a machine housing (2), a stator (6) arranged in the machine housing (2), and a rotor (9) rotatably mounted in the machine housing (2) relative to the stator (6). The machine housing (2) encloses an interior space (B) of the electric machine (1, 1a, 1b) and separates it from an exterior space (C). Furthermore, the electric machine (1, 1a, 1b) includes an adsorption element (19) arranged in the interior space (B), which can be actively cooled below the condensation point of the air in the interior space (B) for absorbing water vapor or water. A vehicle (29) with such an electric machine (1, 1a, 1b) and a method for operating such an electric machine (1, 1a, 1b) are also described.

The application provides a preparation method and application of a ternary copolymer EVA diesel pour point depressant, and belongs to the technical field of petroleum chemical additives. The ternary copolymer EVA diesel pour point depressant with an ethylene content of 60% to 65% is successfully prepared by introducing a third monomer into EVA, using an alkane compound as a solvent, adopting a medium-pressure polymerization process, and in a way of step feeding and continuously dropping the remaining raw materials. The introduction of the third monomer provides suitable polar groups and steric hindrance effects, effectively protects ester groups and improves the dispersibility of the pour point depressant in diesel. The ternary copolymer EVA diesel pour point depressant has a significant pour point depression effect, can reduce the diesel condensation point by 15 to 23 DEG C, and can reduce the cold filter plugging point by 8 to 14 DEG C. Compared with the existing high-pressure process, the application significantly reduces the equipment investment and energy consumption, the process is simple and easy to industrialize, provides an economic and efficient scheme for improving the low-temperature fluidity of diesel, and has a good popularization and application prospect.

The invention provides a concrete initial setting time on-site determination device and determination method, the concrete initial setting time on-site determination device comprises a pressing block, the pressing block is a solid cylinder, a connecting rod is fixed at the center of the upper surface of the pressing block, and a circular level is fixed at the upper end of the connecting rod. Based on the clear physical principle that the mechanical stability of the device is suddenly changed due to the increase of the surface strength of the critical stability concrete, the result of judging the initial setting time is objective and accurate, and the pressure intensity of the device on the concrete is set in a critical interval close to the lower limit of the bearing capacity of the initial setting concrete; the sensitivity and the reliability of stability transformation of the device at an initial condensation point are ensured; and the device is extremely simple and durable, extremely convenient to operate, low in cost and easy to popularize.

The invention relates to the technical field of petroleum testing devices, in particular to an automatic petroleum condensation point and pour point tester which comprises a tester body, two electric cabinets are fixedly mounted at the front end of the tester body, a switching power supply is fixedly mounted at one end of the tester body, and a printer is fixedly mounted at the front end of the tester body. A touch screen is fixedly mounted at the front end of the tester body, a low-temperature bath box is fixedly mounted in the tester body, a first mounting box is fixedly connected to the interior of the tester body, a clamping assembly is arranged in the first mounting box, and the clamping assembly comprises a first mounting seat, a second mounting seat, a first rotating column and a second mounting box. A first motor drives a worm to be meshed with a worm gear, a first rotating column and a first gear are driven to rotate, a rack sleeve is driven to linearly move, a second gear drives a two-way threaded rod to rotate, the two clamping arms draw close oppositely, stable clamping is formed, and it is ensured that the posture of a sample tube is stable in the testing process.

The application discloses a crude oil condensation point prediction method and device, electronic equipment and storage medium, and relates to the technical field of petroleum industry. The method comprises the following steps: obtaining to-be-predicted feature data corresponding to a crude oil condensation point; inputting the to-be-predicted feature data into a target crude oil condensation point prediction model to obtain a crude oil condensation point prediction result output by the target crude oil condensation point prediction model; and wherein a target hyperparameter of the target crude oil condensation point prediction model is generated based on an improved adaptive genetic algorithm. The technical scheme of the embodiment of the application solves the technical problem that the prediction accuracy of a traditional crude oil condensation point prediction model is not high, a dynamic updating mechanism is lacked, and intelligent updating of the crude oil condensation point prediction model cannot be realized, effectively improves the accuracy and adaptability of the prediction model, and realizes dynamic updating of the prediction model in combination with the improved adaptive genetic optimization algorithm.

The present invention aims to provide a seamless steel tube and a method for manufacturing the same. A seamless steel tube of the present invention is a seamless steel tube having desirable resistance to corrosion by sulfuric acid condensation point, the seamless steel tube having a composition that includes, in % by mass, C: 0.01 to 0.12%, Si: 0.01 to 0.8%, Mn: 0.10 to 2.00%, P: 0.050% or less, S: 0.040% or less, Al: 0.010 to 0.100%, Cu: 0.03 to 0.80%, Ni: 0.01 to 0.50%, Mo: 0.01 to 0.20%, Sb: 0.002 to 0.50%, Cr: 0.004% or less, W: 0.0.02% or less, and the remainder Fe and incidental impurities, and a structure including a ferrite phase with an area percentage of 50 to 65%, a pearlite phase with an area percentage of 2% or less, and one or both bainite phases and a martensitic phase representing the remainder, the seamless steel tube having an elongation strength of 230 MPa or more and a tensile strength of 380 MPa or more.

The utility model belongs to the technical field of pipeline sampling devices, and particularly relates to a high-condensation-point material pipeline sampling device which comprises a pipeline valve body, a sample cup, a valve clack, a valve rod, a hand wheel and a quantitative cup, the sample cup is connected to the outer side of the pipeline valve body, a lower valve rod is arranged in the sample cup, one end of the lower valve rod is connected with a lower valve clack, and the other end of the lower valve rod is connected with a lower hand wheel. The inner wall of the pipeline valve body is connected with a quantitative cup, the quantitative cup comprises an upper inlet and a lower outlet, the lower valve clack can abut against or be separated from the lower outlet by rotating the lower hand wheel, and the upper valve clack can abut against or be separated from the upper inlet by rotating the upper hand wheel. The sampler disclosed by the utility model is directly connected with a p-nitroaniline high-condensation-point material pipeline, so that the effectiveness of a sample is ensured; the quantitative cup is always positioned in the pipeline valve body in the sampling process, so that the problem of untight sealing caused by solidification of materials at a sampling port due to temperature and pressure reduction of the materials is solved; the specification of the quantitative cup can be set according to sample demand.

The invention relates to the technical field of petroleum performance detection, and discloses an automatic condensation point and cold filter plugging point measuring device and method. The automatic condensation point and cold filter plugging point measuring device comprises a measuring host, a mounting module and a control module, the mounting module is used for mounting and sealing the detection module at the detection station, and comprises a container bearing piece, a fixed connecting piece, a pressing driving piece and an adjustable sealing piece; the container bearing part is used for being connected with the detection module and bearing a storage container containing a to-be-detected medium. According to the invention, the digital closed-loop control of the pressing force is realized in the test tube mounting link, the consistent mechanical state and optimal thermal contact of each mounting are ensured, and the manual operation difference is eliminated; a sealing assembly capable of being dynamically adjusted is adopted in the sealing link, and interface change caused by thermal expansion and cold contraction can be compensated in real time according to pressure feedback in the whole testing process, so that stable and reliable long-term sealing is maintained in a wide temperature range.

The invention provides a fuel tank switching control method and system of an operation machine and the operation machine, and belongs to the technical field of operation machines. The method includes transmitting a start signal to an engine of the work machine when the start signal is received; under the condition that a temperature detection result, collected by a temperature sensor, of fuel oil in a main oil tank of the operation machine is larger than or equal to a set temperature threshold value, a conversion device is controlled to be switched from an auxiliary oil tank to the main oil tank to supply oil to the engine; wherein the main oil tank is loaded with first fuel oil, the auxiliary oil tank is loaded with second fuel oil, and the condensation point of the second fuel oil is lower than that of the first fuel oil. The fuel tank switching control method is used for solving the problem of how to provide the fuel tank switching control method of the operation machine capable of achieving both the automation degree and the efficiency during operation in the severe cold area.

1. The name of the design product: heavy oil automatic sampler. 2. The use of the design product: for heating, temperature control, and pressurizing high condensation point oil before sending it into near-infrared flow cell. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view.