64results about How to "Achieve accurate metering" patented technology

The invention relates to a deposition and water level monitor and an application method thereof and belongs to the technical field of underwater deposition automatic monitoring in the water conservancy industry. According to the technical scheme, the deposition and water level monitor comprises a monitoring host (6) and a deposition and water level sensor (8), the deposition and water level sensor is in a strip shape, and a plurality of electrodes (7) are distributed in the length direction. The strip-shaped deposition and water level sensor is vertically and downwards arranged in the length direction, and the capacitance value of each electrode is measured; the deposition thickness is obtained in real time according to different capacitance values of all the electrodes and intervals between every two electrodes. By means of the deposition and water level monitor and the application method thereof, the water level and decomposition can be monitored at the same time, water surface and water bottom can be monitored at the same time, the decomposition thickness and the water level height can be monitored for a long time without manual intervention, then deposition rules of sludge and water level change situations are analyzed, and storage capacity or water flow is measured. The deposition and water level monitor and the application method thereof are high in accuracy, high in real-time performance, easy to arrange and small in later-period maintenance amount.

The invention relates to monitoring equipment of intermittent flows. The monitoring equipment comprises a water inlet pipe, a measuring tank and a draining pipe. A tipping bucket is disposed in the measuring tank. The tipping bucket comprises a container for receiving liquid flowing out of the water inlet pipe and a hinge connecting the container with the measuring tank. The empty mass center of the empty container is located on one side of the hinge. The empty mass center allows the container to keep horizontal. The full mass center of the full container is located on the other side of the hinge. The full mass center allows the tipping bucket to incline and turn over. The tipping bucket further comprises a counter for recording the inclining and turning over times of the container. The monitoring equipment has the advantages that tipping bucket measuring is used, intermittent flow measuring which cannot be continuously performed is changed into measuring of the inclining and turning over times of the tipping bucket, and precise sewage measuring is achieved; the measuring of the inclining and turning over times of the tipping bucket can be easily digitalized, so that sewage amount calculation is quite convenient and accurate; due to the fact that the tipping bucket is of a quite simple mechanical structure, fault probability is reduced, and the problem of impurity blocking can be well avoided.

The invention belongs to the technical field of environmental monitoring, and relates to a dual-channel gas state mercury exhaust gas sampling system. The dual-channel gas stage mercury exhaust gas sampling system comprises a sampling gun, a heat tracing pipeline and a sampling host machine, wherein two sampling pipes can be installed on the sampling gun. A water removal device and an acid removal device are sequentially connected between the heat tracing pipeline and the sampling host machine. The sampling host machine comprises a sampling pump, a flow control valve used for regulating sampling flow, and a gas flow metering device, wherein the sampling pump, the flow control valve and the gas flow metering device are communicated through pipelines. Vacuum degree control valves are connected at two ends of the sampling pump in a parallel mode. The gas flow metering device comprises a dry-type gas flow meter, a rotary coder and a counter, wherein the rotary coder is fixed on a transmission shaft of a counting plate of the dry-type gas flow meter, a signal output by the rotary coder is sent to the counter, and the counter measures volume of gas according to the output signal of the rotary coder. According to the dual-channel gas state mercury exhaust gas sampling system, accurate measurement of gas flow can be achieved and the sampling pipes can be effectively protected.

The invention discloses a wide-range photoelectric direct-reading water meter which comprises a counter, a gear box (7), an impeller and an impeller box (1). The gear box (7) is mounted on the top of the impeller box (1), eight water inlets (3) are arranged at the bottom of the impeller box (1), four water outlets (4) are arranged on the top of the impeller box (1), four to six decelerating stems A (9) are arranged on a bottom surface A (8) of the gear box (7), and six to eight decelerating stems B (6) are arranged on a bottom surface B (5) of a cavity (2) of the impeller box (1). The wide-range photoelectric direct-reading water meter has the advantages that the rotational speed of the impeller is regulated by the decelerating stems B and the decelerating stems A when the impeller is impacted by water flow to rotate, various flow points are precisely metered, so that low flow can be metered, Q3/Q1 ratio can be higher than 160, and counting precision of the water meter is improved.

The invention provides a CO2 flooding crude oil separation foamability testing device and method. The device comprises a CO2 flooding crude oil pre-configuration module and a foaming simulation module. The CO2 flooding crude oil pre-configuration module includes a first piston pressure vessel, the lower part in the container is a CO2 and crude oil mixing space, the bottom is connected to a CO2 injection apparatus and a crude oil injection apparatus, the upper part is a pressure control space, and the top is connected to a pressure gas injection apparatus. The foaming simulation module includes a second piston pressure vessel, one end inside is a CO2-containing crude oil foaming simulation space communicated with the lower space of the first piston pressure vessel, and the other end is a pressure control space. The device and method provided by the invention can simulate CO2 solubility, CO2 flooding crude oil decompression foaming, flow decompression foaming, foaming capacity and foam stability testing.

The invention discloses a water distribution method and device based on omni-channel transmission and distribution and computer equipment, and the method comprises the steps: collecting the current water level information of a target region and the initial door opening information of each channel; according to the current water level information and the initial door opening information of each stage of channel, adjusting door opening information of each stage of channel gate in the target area is determined; and water resources are transmitted and distributed to the target area according to the door opening adjustment information. By implementing the method and the device, the problem that water resources in the irrigation area are seriously wasted due to the fact that the irrigation area cannot be automatically controlled in the prior art is solved. The current water level information of the target area and the initial door opening information of each channel are combined, the door opening adjustment information of each channel is determined, automatic management and real-time control of the irrigation area and accurate metering of irrigation area water can be achieved, the utilization efficiency of irrigation water is effectively improved, and the management level of irrigation area water is improved.

The invention relates to powder conveying, in particular to a powder conveying system. The powder conveying system comprises a feeding bucket, a gear pump, a mixer, a conveying pipeline, a material collecting bucket and a dust removing device, wherein the feeding bucket, the gear pump, the mixer, the conveying pipeline and the material collecting bucket are sequentially connected; the feeding bucket is connected with the material inlet end of the gear pump; the gear pump comprises a housing, an engaging gear set and a power source; the engaging gear set is arranged in the housing, and comprises two gears which are engaged to each other; the two gears are rotationally connected with the housing; when the engaging gear sets is rotated, two adjacent teeth on the same gear can be circulated to be matched with the housing to form a powder conveying chamber; a compressed air inlet is arranged on the mixer; and the dust removing device is arranged at the top of the material collecting bucket. According to the powder conveying system provided by the invention, the gear pump is used for rotationally feeding materials and synchronously separating; and the compressed air serves as the power; thus, the powder can be conveyed under a closed environment, and cannot be diffused into the atmosphere.

The invention discloses a material monitoring system mainly comprising a hopper, a conveyer belt, ray detectors, a weighing device and a solver, wherein the ray detectors are distributed at the upper and lower parts of the conveyer belt or on two sides thereof; the weighing device is located at the lower part of the conveyer belt; and the signal output terminals of the ray detectors and the weighing device are connected with the signal input terminal of the solver via data wires. Accordingly, the monitoring system is capable of discriminating the components of the material by the ray detectors, weighing the materials by the weighing device and respectively recording the conveying capacities of different materials according to two groups of measurement signals and outputting the data though the wired or wireless network by the solver, thereby avoiding the artificial interference and achieving the accurate measurement of the materials.

The invention relates to a belt type steering loader belonging to the technical field of mechanical manufacturing. A supporting spindle is arranged in the centre of a base counterweight chassis, a spindle and a swinging arm are in a shaft and bearing pressing-down type inserting structure, the swinging arm comprises an inner swinging arm and an outer swing arm, a gear set is arranged between the inner swinging arm and the outer swinging arm, wherein the outer swinging arm is connected with a main rotating arm by a vertical shaft, the rear end of the main rotating arm is connected with a rear rotating arm by adopting a movable joint, the front end of the main rotating arm is connected with a front rotating arm by adopting a movable joint, a rear-end connection point of the rear rotating arm is provided with a rear transporting arm and a two-stage transporting arm, a three-stage transporting arm is arranged above the main rotating arm, a front-end connection point of the front rotating arm is provided with a four-stage transporting arm and a front transporting arm to form a graded combined type transporting arm, and a power control system adopts a plurality of AC electric rollers and a hydraulic power pack and is controlled by a remote-control unit through a control panel. The belt type steering loader is provided with the gear set and the movable joints, and the transporting arms are combined in grades in order to realize the positioning steering of the front and the rear transporting arms and the omnibearing loading and unloading arrangement of cargoes in a carriage.

The invention discloses a nuclear power plant waste solidification treatment system and a treatment method. According to prior arts, a weight metering method is adopted, system equipment complication is high, mounting difficulty is high, debugging, operation and maintenance are difficult, and a weighing unit has risks of weight deviation and measurement failure. With the system and method provided by the invention, the above technical problems are solved. The system comprises a waste collection unit (1), a waste volume metering unit (2), a waste delivery pipe (3), a valve assembly (4), a control unit (5) and a waste solidification unit (6). The control unit (5) acquires waste volume from the waste volume metering unit (2), and controls the open/close state of the valve of the valve assembly (4) based on the waste volume, such that the waste volume metering unit (2) acquires and temporarily stores a preset volume of nuclear plant waste for solidification during each waste solidification link. Therefore, waste precise metering and solidification under a measurement mode with no weighing unit is realized.

The invention discloses a method for calculating the excavation amount of a complex-form soil material field, which comprises the following steps of (1) setting a plurality of scanning stations according to the topographic condition of an excavation surface of the soil material field and the size of the excavation surface, and scanning the forms of the excavation surface before and after excavation of an excavation area of the soil material field; (2) carrying out point cloud registration on the coordinate system of the point cloud data obtained by scanning so as to convert the coordinates of the point cloud data into the same coordinate system; (3) analyzing the registered data, establishing a point cloud data compression method based on a hypergeometric space sphere, and performing the bidirectional compression on the registered point cloud data to reduce the data redundancy; (4) extracting the internal data of the excavation area from the compressed data, and deleting the data outside the excavation area; and (5) according to the extracted point cloud data before and after the excavation of the excavation area, calculating the excavation square amount of the soil material field. By means of the method, the efficient processing of the point cloud data of the excavation face of the complex-form soil material field and the rapid and accurate metering of the excavation square amount of the material field are achieved.

The invention discloses a high-precision oil three-phase automatic metering device. Through the separation function of an overflow cup, a separating umbrella and overflow holes at four sides beneath the separating umbrella, the gas and fluid separation can be fully performed on oil well output liquid, the separating effect is good, and separated gas is metered; a liquid level meter, a force measuring sensor, an electromagnetic valve and a measurement and control circuit can accurately meter oil and water under the condition of not separating; the metering device is compact and simple in structure; the sensor and the measurement and control circuit are easy to realize, and cost is low; the metering device is high in degree of automation, safe and reliable. The high-precision oil three-phase automatic metering device can be directly accessed to a 'digital oilfield system' constructed at present, so as to monitor the output of the production oil well precisely in real time. Compared with the prior art, the high-precision oil three-phase automatic metering device is compact and simple in structure; the metering device is high in degree of automation, safe and reliable; the metering device can be directly accessed to a 'digital oilfield system' constructed at present, so as to monitor the output of the production oil well precisely in real time.

The invention provides an automatic titration apparatus for an analytical instrument. The automatic titration apparatus comprises an electromagnetic stirring device, a feeding and discharging liquid metering system, a fastening mechanism, a titration end point monitoring device and a controlling and calculating unit, wherein the electromagnetic stirring device has only one liquid feeding and discharging opening in the bottom and is provided with a central through hole. The apparatus can be used for photometric titration and potentiometric titration, and is simple to install and low in cost.

The invention relates to a continuous runoff and sediment sampling and measuring system and method used in an indoor soil-bin test. The continuous runoff and sediment sampling and measuring system comprises a sampling subsystem, a measuring subsystem, a sample storing subsystem, a control subsystem, a power supply subsystem and a cleaning subsystem, wherein the sampling subsystem comprises a plurality of sampling barrels which are arranged around an annular crawler belt intermittently rotating according to the water intake condition; the sampling barrels are connected with the annular crawler belt through automatic unlocking mechanisms. Through the sampling barrels driven by the annular crawler belt, runoff generated in a soil bin is continuously sampled and the sampling times is recorded, and by using the measuring subsystem, each sample is accurately measured, so that fully-unattended automatic sampling and automatic measurement are achieved; through accurate measurement of the sampling time and accurate weighing of water and sediment in each sampling barrel, full-automatic accurate measurement of the runoff in the soil bin is achieved.

The invention relates to an earth moving truck for mining production. A hydraulic control device is arranged in a truck head. The four sides of a compartment are each provided with a movable baffle. The lower portion of each movable baffle is connected with three hydraulic cylinders used for driving the movable baffles to move up and down. A push shovel structure is arranged at the front lower portion of the truck head. The earth moving truck for mining production has the beneficial effects that through design of the push shovel structure, the condition of a pavement on which the truck runs is improved, wear to tires of the truck is reduced, the transportation cost is reduced, the workload of a bulldozer is reduced on operating places such as loading and heading face and a waste dump, the road maintenance workload is reduced relatively, and the work intensity is relieved relatively.