44results about How to "Avoid Measuring Inaccuracies" patented technology

The invention discloses a walking type detection platform for the static load of engineering foundation piles, which comprises a supporting platform movably supported on two long boats and two short boats, wherein the two short boats are respectively arranged at two ends of the supporting platform, and a short-boat walking vehicle is arranged on each short boat and is fixedly connected with a short-boat slewing platform; vertical lifting hydraulic cylinders mounted on the supporting platform is hinged to the short-boat supporting platforms; the short-boat slewing platforms are hinged to the short-boat supporting platforms through swing pin shafts; two long-boats are respectively arranged on two sides of the supporting platform; each long boat is provided with two movable long-boat walking vehicles which are hinged to the lower ends of the corresponding legs of the long boats; the legs of the long boats are mounted on the supporting platform through beams of legs of the long boats; long-boat walking hydraulic cylinders are arranged between the long-boat walking vehicles and the long boats; a crane is mounted on the supporting platform. The detection platform can perform self-propelled move as a whole, requires no repetitive construction and hoisting, and has the features of safety in use, reasonable structure, high operating efficiency and the like.

The invention provides an oil field single-well metering device and method. The oil field single-well metering device comprises a metering tank and an energy-storage tank which mutually communicate. Gas with the preset pressure is stored in the energy-storage tank, and a liquid inlet pipeline, a liquid level meter, a liquid outlet pipeline and a weighing module are arranged on the metering tank. An inlet valve is arranged on the liquid inlet pipeline, and an outlet control valve is arranged on the liquid outlet pipeline. A piston for cleaning the metering tank is further arranged in the metering tank, and the bottom of the metering tank is connected with a cleaning device which is used for injecting cleaning liquid in the metering tank. Through all embodiments of the oil field single-wellmetering device and method, the structure is simple, operation is convenient, oil field single-well metering is achieved under the situation that additional power is not needed, and the accuracy of the single-well metering result is improved.

The invention discloses a quality data issuing and monitoring method, apparatus and system as well as quality data acquisition instrument. The method comprises the following steps: a gas station acquiring, by the quality data acquisition instrument, natural gas quality data provided by a natural gas upstream gas supplier, and sending the natural gas quality data and marking information to a remote server (an issuing platform) by virtue of a wireless way; the remote server displaying the issued natural gas real-time components, standard density, heating amount, average standard density of a preset period and average heating amount on a server and a user terminal by virtue of calculation, the remote server comparing the received real-time data with an average value of a previous preset period, and performing the prompting or alarming if the difference is more than a preset value. By adopting the technical scheme, a portable technical means can be provided for the accurate measurement of natural gas and trade settlement, quality data issuance and monitoring can be realized, the information is convenient to disclose, and the fairness and justness of the natural gas transaction can be promoted.

The invention discloses a movable concrete mixing plant for road and bridge construction and belongs to the technical field of building construction equipment. The movable concrete mixing plant comprises a stirrer, a material weighing device and a water tank and can be arranged on transportation equipment for transferring; a screw conveyor is arranged between a feeding opening of the stirrer and the material weighing device; the water tank is connected with the stirrer through a water pump and a water inlet pipe with a flowmeter; the material weighing device comprises a material storage hopperof which the bottom is provided with a dynamic weighing and measuring module; the material storage hopper is connected with a turning mechanism; the stirrer comprises a tank body, a stirring shaft and stirring blades; the stirring shaft is vertically arranged in the tank body; a motor for driving the stirring shaft is arranged at the bottom of the tank body; and a plurality of stirring blades areradially arranged at the periphery of the stirring shaft from top to bottom. The dynamic weighing and measuring module weighs all powdery or solid materials; the flowmeter meters the water consumption for stirring; and when the materials are weighed, the turning mechanism and the screw conveyor are started for conveying the materials into the tank body for mechanically stirring and mixing. The movable concrete mixing plant disclosed by the invention can accurately meter the materials, so that the quality of concrete is ensured.

The invention discloses a method for accurately measuring organic carbon content of shale. The method comprises the following steps: 1) acquiring a complete block of shale in proportion; 2) extracting shale gas in the shale into an enclosed container containing water; 3) carrying out ultraviolet oxidation treatment on the enclosed container having absorbed the shale gas; 4) measuring the organic carbon content of an aqueous solution having undergone oxidation in virtue of a TOC instrument and measuring the organic carbon content of water at the same time, wherein the obtained difference value represents the organic carbon content of the shale gas; 5) crushing the shale in which shale gas is extracted into a powdery sample; 6) dissolving the powdery sample with concentrated sulfuric acid; 7) measuring the organic carbon content of a uniform solution cooled in the step 6) by using a potassium dichromate oxidation-ferrous sulfate titration method; and 8) summing together the organic carbon content of the shale gas measured in the step 4) and the organic carbon content measured in the step 7) so as to obtain the total organic carbon content of the shale. The method provided by the invention can accurately measure the organic carbon content of the shale.

The invention relates to an oil product light stabilizer, and belongs to the technical field of lubricating oil preparation. The oil product light stabilizer is characterized by being prepared from the following raw materials in parts by weight: 3-5 parts of an antioxidant 1010, 5-10 parts of an ultraviolet light absorber; 5-10 parts of an antioxidant 168; and balance of base oil. The preparation method comprises the following steps: mixing the antioxidant 1010 and the base oil according to a weight ratio of 1: 10-15 to obtain a component A; mixing the ultraviolet light absorber and base oil according to a weight ratio of 1: 10-20 to obtain a component B; mixing the antioxidant 168 and the base oil according to a weight ratio of 1: 10-15 to obtain a component C; and blending the component A, the component B and the component C by online blending and filling equipment and adding the blended components into lubricating oil to be renewed, wherein the adding mass of the oil product light stabilizer is 0.1%-0.2% of the lubricating oil to be updated. A quantitative premixing device, a nitrogen adding pulse blending device and a suction type replacement device are sequentially connected from front to back.

The present invention belongs to the orifice plate gas flow measurement technical field and relates to a high-pressure orifice plate gas stagnation temperature control device and method. The control device is a temperature control gas tank; a temperature control gas tank inlet flange is externally connected with the outlet of a gas source; a front porous rectifying plate is clamped to a temperature control gas tank wall through a temperature control gas tank inlet expanding type clamp plate flange by means of bolts; electric heating rods are fixedly clamped to a rear porous rectifying plate through the front porous rectifying plate; line collection rings are located on the rear porous rectifying plate; electrode springs are clamped between electric heating rod inner electrodes and external electrodes; the external electrodes are embedded in insulating materials; the insulating materials are embedded in metal plugs; the metal plugs are welded to ball head-taper surface sealing structures; the ball head-taper surface sealing structures are welded to the temperature control gas tank wall; and outer periphery flow guiding holes and inner periphery flow guiding holes are located on the rear porous rectifying plate. With the high-pressure orifice plate gas stagnation temperature control device and method of the invention adopted, gas temperature at the inlet of an orifice plate can be effectively compensated in a certain range, the accuracy of key parameter measurement participating in the calculation of the discharge coefficient of the orifice plate can be ensured, and the accuracy of the calibration of the discharge coefficient of the orifice plate can be improved.

The invention discloses a method for determining the content of ferrous oxide in iron ore. The method comprises steps of a, weighing an iron ore sample, putting the sample into a conical flask, sequentially adding potassium fluoride, sodium bicarbonate and hydrochloric acid, covering with a porcelain cover, putting the flask on an electric furnace, and heating to boiling; b, transferring the diluted solution obtained in the step a into a beaker special for a potentiometric titrator; and c, inserting an indicating electrode and a reference electrode of the potentiometric titrator into the beaker special for the potentiometric titrator in the step b, titrating by adopting potassium dichromate standard solution, starting the potentiometric titrator, and starting titration. The method is advantaged in that problems that reliability of the detection result is easily influenced by indicator end point judgment and subjective judgment of different analysts in the existing measurement, ferrousoxide is extremely easy to oxidize in the decomposition and titration processes, and the analysis result is relatively low can be avoided.

The invention discloses a suspension type impulse plate flow meter. The suspension type impulse plate flow meter comprises a body and a flow guide groove arranged at the upper end of the body, wherein the body is internally provided with an impulse plate; four corners of the impulse plate are connected with steel wire ropes with the same length; one side of the impulse plate is suspended at the top of the body through two steel wire ropes and the other side of the impulse plate is suspended on a connecting plate at the top of the body through two steel wire ropes, so that a certain included angle is formed between the impulse plate and the horizontal plane; a push block is arranged at the middle position of the lower surface of the impulse plate; the push block is connected with a force transmission rod and a connector is arranged at the other end of the force transmission rod; the force transmission rod is connected to a force-measuring sensor through the connector. The suspension type impulse plate flow meter has the advantages that the metering precision is greatly improved; zero drift can be effectively avoided; the flow guide groove is arranged so that the problem that the metering is not accurate, caused by the fact that the size of an impact force on the impulse plate by each material is different, can be avoided; the force-measuring sensor is firmly mounted in the body and the problem that the metering is not accurate, caused by equipment vibration, can be avoided.

The invention discloses a tipping bucket type rain gauge. The gauge comprises a base, a gantry support fixedly arranged on the base and integrally formed, a support fixedly arranged at the top of thegantry support, a rain bearing funnel having the bottom penetrating through the support and fixedly installed on the support, a plurality of tipping buckets and metering buckets installed on the gantry support in a turnover mode, a rainfall induction mechanism fixedly installed on the gantry support, an output terminal connected and matched with the rainfall induction mechanism and one-point positioning mechanisms. The tipping buckets are installed on the gantry support in a turnover mode from top to bottom from the position below an outlet in the bottom of the rain bearing funnel through a plurality of pairs of tipping bucket supporting points, and longitudinal positioning grooves and the one-point positioning mechanism are further installed at the installation positions of the metering buckets of the gantry support. And the rainfall induction mechanism is located between the metering buckets and the tipping buckets above the metering tipping buckets, measures and counts rainfall andtransmits a result to the output terminal for final output of a rainfall numerical value. The gauge has the advantages of small rainfall metering error, high precision and simple structure.

The invention discloses a precise conveying mechanism of a high-precision weight reduction type weighing scale. The precise conveying mechanism comprises a shell with a feeding bin, a drive wheel assembly, a driven wheel assembly, a conveying belt and a drive assembly, wherein the drive wheel assembly and the driven wheel assembly are oppositely arranged. The feeding bin is provided with a feedingport and a discharging port. The drive wheel assembly and the driven wheel assembly are arranged in the feeding bin. A tooth-shaped synchronous belt is arranged on the inner side of the conveying belt, the two ends of the synchronous belt are engaged to synchronous wheels of the drive wheel assembly and the driven wheel assembly correspondingly, the center of the conveying belt is located below the feeding port, and the discharging port is located in the front end in the conveying belt advancing direction. The drive assembly is used for driving the drive wheel assembly to work. The tooth-shaped synchronous belt is arranged on the inner side of the conveying belt, the purposes of friction force increasing and anti-skid transmission are achieved through meshing of the synchronous belt and the synchronous wheels of the drive wheel assembly and the driven wheel assembly, inaccurate metering caused by conveying belt skidding is avoided, accordingly, the work stability of the conveying mechanism is improved, and the metering precision of a weight reduction type scale is improved.

The invention provides an automatic delivery device for SMA fiber materials, comprising: a transmission mechanism, a material storage mechanism, a delivery mechanism, a fiber storage bag, a control mechanism and a material receiving mechanism; the storage mechanism is vertically arranged on the transmission The conveyor belt surface of the mechanism; the storage mechanism has a storage chamber, and the fiber storage bags are stacked in the storage chamber; the delivery mechanism includes a grabbing device, an air control module, a swing cylinder and a grabbing cylinder The air control module is controlled by the control mechanism, so that the swing cylinder controls the grabbing device to swing to a position corresponding to the upper surface of the material storage mechanism, or to a position corresponding to the opening of the material receiving mechanism; The grasping cylinder controls the lengthening or shortening of the grasping device. The invention provides an automatic delivery device and delivery method for SMA fiber materials, which are accurate in measurement, simple in maintenance and simple in equipment structure.