48results about How to "Traffic real-time monitoring" patented technology

The invention discloses a simulation test system and monitoring method for a disaster of roof water burst and sand inrush induced by coal seam mining. The simulation test system comprises a bracket, wherein a test bin is arranged inside the bracket; a movable coal-mining simulating dragging plate is arranged at the bottom of the test bin; a water-sand gathering channel obliquely arranged is arranged below the coal-mining simulating dragging plate; a water-sand collecting device is arranged at the outlet of the water-sand gathering channel; the test bin is formed by a bottom plate, a right side wall, a front transparent plate body, a back transparent plate body and the coal-mining simulating dragging plate; a plurality of pore water pressure sensors and a plurality of pressure sensors are arranged inside the test bin. According to the invention, the simulation test for the disaster of the roof water burst and sand inrush induced by coal seam mining is carried out by adopting the technical scheme that the test bin is filled with coal measure strata simulating materials, so as to obtain water-sand inrush parameters of different stratum combinations, therefore, the identification degree of the characteristics of the disaster of operating face water burst and sand inrush induced by coal seam mining is improved.

The invention discloses a mining-induced fractured rock mass water sand transportation testing system and a monitoring method. The mining-induced fractured rock mass water sand transportation testing system comprises a support which is provided with a testing bin; the testing bin comprises an upper bin body and a lower bin body; a plurality of pressure sensors are uniformly configured in the upper bin body; a plurality of pore water pressure sensors are uniformly configured in the lower bin body; a sand layer is laid in the upper bin body; rock layers with different lithology and lumpiness are laid in the lower bin body; when a top plate moves downward, the loose sand layer and the rock layers are compressed gradually; a crisp epoxy resin water-stop plate also moves downward; the tip end part of a fracturing rod fractures the crisp epoxy resin water-stop plate, so that the upper bin body and the lower bin body are communicated. The transportation and gush simulation test of a water and sand mixture in fractured rocks can be carried out; water and sand transportation parameters of different ground layer combinations can be obtained; the reliability of characteristic recognition of gushing water and crushed sand disasters at a working surface induced by coal mining is improved.

The invention relates to a management system combining secondary water supply with DMA leakage loss management. Data of a GIS system, SCADA system, business charge system and the like can be integrated for comprehensively displaying the secondary water supply and DMA production and sale differences. Functions include the secondary water supply and DMA partition overview, DMA community production and sale difference analysis, secondary water supply management of a DMA community and abnormal alarming of water pressure and water quality. The provided management system combining the secondary water supply with the DMA leakage loss management overcomes the defect that existing secondary water supply management and DMA leakage loss management are both functionally separated and are independent;management functions of the two parts are organically combined, a flow monitoring value in the secondary water supply is used in third-level analysis of the DMA community, and a pressure monitoring value in the secondary water supply is used in evaluation of DMA community leakage loss analysis. Under the condition of satisfying normal water use of the community, the pipe network leakage loss rateof the community is gradually decreased.

The invention discloses a blade tip coupled cooling experiment system for turbine blades of a gas turbine. The blade tip coupled cooling experiment system comprises a high temperature main flow channel, a U-shaped cooling channel, an experimental test section and a data acquisition and analysis system, wherein the high temperature main flow channel comprises a temperature control box, and a main flow gas pump, a main flow gas flow stabilization tank, a main flow gas heater and a main flow three-way electromagnetic valve which are sequentially connected; the U-shaped cooling channel comprises acold flow outlet vacuum pump, and a cold flow inlet gas pump, a cooling gas flow stabilization tank, a cooling gas heater and a cold flow inlet three-way electromagnetic valve which are sequentiallyconnected; the experimental test section comprises a U-shaped cooling channel, a high-temperature main flow channel and a blade tip plate with a through hole in the center, and an embedded plate is embedded in the through hole; the data acquisition and analysis system comprises a cooling channel infrared thermal imager, a main flow channel infrared thermal imager, a CCD camera, and a data acquisition and analysis computer connected with the cooling channel infrared thermal imager, the main flow channel infrared thermal imager and the CCD camera; and an outlet of the main flow three-way electromagnetic valve is communicated to an inlet of the high temperature main flow channel, and an outlet of the cold flow inlet three-way electromagnetic valve is communicated to an inlet of the U-shaped cooling channel.

The invention discloses a testing and adjusting linkage system. The testing and adjusting linkage system comprises a water distributor (1) and a testing and adjusting device (2) arranged inside the water distributor (1); a guide rail sleeve (4), an upper magnet (6), a lower magnet (8) and an adjustable water nozzle (10) are arranged in the water distributor (1); and a magnetic switch (17), a mechanical locating block (25) and a mechanical claw (38) are arranged in the testing and adjusting device (2), wherein the mechanical locating block (25) is used for locating a locating seat C (52) inside the testing and adjusting device (2) in a matching manner, the mechanical claw (38) is matched with the adjustable water nozzle (10) and can freely adjust the degree of openness of the adjustable water nozzle (10), and thus, the water injection quantity is accurately controlled. The testing and adjusting linkage system has the beneficial effects that the operation is simple and laborsaving and timesaving, the workload is light, the efficiency is high, the accuracy is high, the aims of increasing the testing efficiency, shortening the testing time and increasing the accuracy of test data are reached, the difficulty in operation of oilfield layered water injection is reduced, the working efficiency is increased, and the production cost is saved.

The invention discloses an optical equivalent particle size spectrometer with an internal circulation sheath flow structure. The optical equivalent particle size spectrometer comprises a gas path module, a light path module and an analog-to-digital conversion module. The gas path module comprises a sample injection gas pipe, a sample outlet gas pipe and a sheath flow pipe. The sheath flow pipe sleeves the peripheral surface of the sample injection gas pipe and is coaxial with the sample injection gas pipe, and an annular hole for sheath gas to pass through is formed between the sheath flow pipe and the sample injection gas pipe. The light path module comprises a light source, an ellipsoidal reflector, a lens group and a photoelectric converter. An emitting light path of the light source ispositioned on an axial vertical plane of the sample injection gas pipe. The long axis of the ellipsoidal reflector is perpendicular to the light source emitting light path, the front focus of the ellipsoidal reflector is located at the axial intersection of the light source emitting light path and the air inlet pipe, the front focus of the lens set coincides with the rear focus of the ellipsoidalreflector, and the photosensitive area of the photoelectric converter is located at the rear focus of the lens set. The particle counter provided by the invention can accurately and quickly measure the particle size of the particles in the gas to be detected and the particle concentration distribution of each particle size.

The invention relates to a compound energy-saving type medical molecular sieve central oxygen generation and medical air compression integrated device, comprising a main air supply source, auxiliary air supply sources, and a standby air supply source for continuing to supply oxygen when the main air source and the auxiliary air sources stop at the same time, wherein the main air supply source, the auxiliary air supply sources and the standby air supply source share one air balance tank, one oxygen balance tank and one oxygen division pot with a voltage-sharing and flow-equalizing function, the auxiliary air supply sources are arranged beside the main air supply source side by side and perform auxiliary supplement air supply for the main air supply source, and the standby air supply source continues to supply oxygen when the main air supply source and the auxiliary air supply sources stop at the same.

The invention relates to an online sampling method for an oil pipeline. The online sampling method comprises following steps: 1), a section of bypass pipeline is arranged on a main pipeline, and a liquid enters the bypass pipeline through a sampling probe; 2), pressure detection is performed; 3), filtering and pollution discharge are performed; 4), pressure difference detection is performed at two ends of a filter; 5), the liquid is pressurized by a sampling pump; 6), pressure detection is performed; 7), an outlet of the sampling pump is connected with a sampling loop and a jet loop, the liquid at an outlet end of the jet loop is sprayed into the main pipeline through a spray nozzle, and the liquid entering the sampling loop is subjected to follow-up processes continuously; 8), pollution is discharged; 9), online density detection is performed; 10), gas is exhausted; 11), a sample is taken and stored; 12), the residual liquid after the sample is taken is subjected to pressure detection, temperature detection and flow detection sequentially and is finally converged into the main pipeline. According to the online sampling method for the oil pipeline, reliable, real-time and continuous operation, accurate sample quantity and accurate loop flow control can be realized, and the requirements that the obtained sample is representative, the sampling process is automatic and the system control is accurate are met finally.

The invention discloses an intelligent irrigation system for farmlands, belonging to the technical field of agricultural equipment. The irrigation system comprises a suction pump and a water conveyingpipeline, and further comprises a sealed shell and a sewage discharge motor arranged in the sealed shell, wherein a water suction pipe is fixed to the output shaft of the sewage discharge motor, andthe inlet end of the water suction pipe extends to the outside of the sealed shell and is horizontally arranged; the inlet end of the water suction pipe is provided with a first filter net, and the outlet end of the water suction pipe and the inlet end of the water suction pump are both communicated with the interior of the closed shell. The irrigation system also comprises a controller, a motor drive module, and a flow meter arranged at the inlet end of the water conveying pipeline, wherein the controlled end of the water suction pump is connected with the output end of the controller, the flow meter, the controller, the motor drive module, and the sewage discharge motor are sequentially connected to form a sewage discharge system of the water suction pipe. The sewage discharge motor is used to remove the impurities adhering to the water suction pipe, and the sewage is automatically discharged, thus saving time and labor, and improving the irrigation efficiency.

The invention proves an accurate measurement device of powder, which respectively monitors the flow rate of a single-phase flow before dual-phrase flows of gas and solid are formed by applying a principle that the torque of a lever with a heavy bob is balanced and an angle sensor can accurately monitor the rotation angle of a measuring plate, prevents various defects in monitoring the concentration of the powder in the dual-phrase flows of gas and solid. A monitoring method comprises the following steps of: directly monitoring the rotation angle of a rotating shaft; deriving a direct proportion value according to the structure of the accurate measurement device of the powder and the types of delivered powder; and multiplying the rotation angle with the direct proportion value to obtain the instant gravity flow rate of the powder. The monitoring method is simple, fast and accurate.

The invention provides a circulating cooling water supply system for multiple hypersonic speed testing devices. The system comprises a tap water purifying device, a water storage pond, water pumps, a plurality of cooling units for cooling the hypersonic speed testing devices, a control room provided with a PLC host machine and a pipe network which is used for connecting the tap water purifying device, the water storage pond, the water pumps and the cooling units; the water storage pond is provided with a water filling nozzle, a water outlet and a water return port; the water filling nozzle is connected to the tap water purifying device, the water return port is connected to the outlets of the cooling units, and the water pumps are located between the inlets of the cooling units and the water outlet. The system provided by the invention avoids repeated construction and disperse arrangement of equipment, severe equipment idling and low utilization ratio, is efficient and energy-saving, realizes online real-time monitoring of flow, pressure and temperature, and the flow or pressure can be adjusted as required.

The invention discloses an experimental device and method for transporting sand-carrying liquid in simulated fracturing fractures, which includes a spiral proppant transport device, a mixing tank, a screw pump, a liquid transport pump, a pressure gauge, a proppant migration and distribution system, and a swirl flow Desander, waste liquid recovery barrel, proppant recovery barrel, and fracturing fluid storage tank; the spiral proppant transport device is connected to the stirring tank, and the waste liquid recovery barrel and fracturing fluid storage tank are all connected by a liquid transfer pump It is connected with the stirring tank; the bottom end of the stirring tank is connected with the proppant migration and distribution system through a screw pump. By setting up a computer to accurately control the transparent three-dimensional crack component containing the hydraulic tank, the present invention can simulate the laying of sand-carrying liquid under a certain closing pressure. In addition, the transparent three-dimensional crack component can produce slight deformation without causing damage. , in order to study the laying rules of sand-carrying liquid in the opening and expansion stages of the fracture network system composed of hydraulic fractures and natural fractures.

The invention relates to an online sampling device for an oil pipeline. A section of process pipeline is arranged on a main pipeline, an inlet end of the process pipeline is connected with a sampling probe, an outlet end of the process pipeline is connected with a nozzle, and the sampling probe and the nozzle are all connected to the main pipeline; a sampling loop pipeline is in bypass connection with the process pipeline behind sampling pumps, representative samples are taken from the sampling loop pipeline, and residual liquids finally converge to the main pipeline. By means of the online sampling device, reliable operation, real-time continuous sampling, accurate sample quantity and precise loop flow control can be realized, and the requirements for representative samples, automatic sampling process and precise system control are met finally.

The invention provides a flow monitoring device for non-negative pressure water supply equipment, which comprises a water inlet pipeline. The water inlet pipeline is connected with a current stabilizing tank; the current stabilizing tank is connected with a water pump set; the water pump set is connected with a water outlet pipeline; a backflow preventer is arranged on the water inlet pipeline; a flow monitor is arranged behind the backflow preventer and connected with an intelligent controller through an electric signal; and the intelligent controller is connected with the water pump set through the electric signal. Through the flow monitoring device, the flow of a pipe network can be monitored in real time, malignant water supply accidents such as flat current stabilizing tank due to adsorption when a vacuum suppressor on the current stabilizing tank cannot normally work are avoided, and the water supply safety is ensured.

The invention relates to an aircraft fuel dual-pipe balanced pressure refueling device and a control method thereof, comprising a refueling system and a control system, the refueling system including a pipeline centrifugal pump, a ball valve, a joint valve, a pressure sensor, a pressure flow controller, a safety valve, a pressure flow The controller is connected to the No. 1 branch and the No. 2 branch. Both the No. 1 branch and the No. 2 branch include fuel filters, flow meters, electro-hydraulic valves, refueling hoses and refueling connectors in series. The No. 1 branch also includes A Venturi tube is installed, and the control system includes a conversion power supply, an electrical control box, a quantitative controller, and a display operation interface. The control system is electrically connected to a pipeline centrifugal pump, a pressure sensor, a flow meter, and an electro-hydraulic valve. The invention can realize double-pipe balance pressure refueling function, and can ensure the constant pressure of the refueling port and the safety of refueling. At the same time, the invention can monitor the flow rate and realize the automatic end of refueling. The invention has convenient operation, high refueling efficiency and precision.

The invention relates to an auxiliary energy-saving type medical molecular sieve central oxygen generating device, comprising a main air supply source and auxiliary air supply sources, wherein the main air supply source and the auxiliary air supply sources share one air balance tank, one oxygen balance tank and one oxygen division pot with a voltage-sharing and flow-equalizing function, and the auxiliary air supply sources are arranged beside the main air supply source side by side and perform auxiliary supplement air supply for the main air supply source.

The invention relates to an on-line sampling device and method for oil pipelines. The on-line sampling device is provided with a section of bypass on the main pipeline, the inlet of the bypass is connected with a sampling probe, and the sampling probe is connected to the main pipeline; A sampling pump is installed on the road, and a sampling circuit and an injection circuit are connected after the sampling pump. The outlet end of the injection circuit is connected to the main pipeline through a nozzle, and the sampling circuit takes representative samples, and the remaining liquid is finally imported into the main pipeline. The invention can realize reliable operation, real-time continuous operation, accurate sample quantity and precise loop flow control, and finally meet the requirements of representative sample acquisition, automatic sampling process and precise system control.

The invention discloses an automatic mortar conveying system applied to a large hydropower station and a construction method of the system. The automatic mortar conveying system comprises a mortar conveying system body and an automatic mortar manufacturing system. By means of the mortar conveying system body, epoxy base materials and curing agents are gradually conveyed to a construction position, so that a lot of labor and materials are saved, and work efficiency is improved. By means of the automatic mortar manufacturing system, mortar conveying and mortar manufacturing are integrated, and work efficiency is further improved. The construction method of the automatic mortar conveying system includes the following steps of (a) construction preparation, (b) field leveling, (c) construction mechanical equipment and material dispatching, (d) material collecting box installation, (e) mortar absorbing pipeline installation, (f) electric gear pump installation, (g) mortar conveying pipeline installation, (h) automatic mortar manufacturing system instillation, and (i) project acceptance. By means of the system and the method, productivity is freed, cost is reduced, construction efficiency is improved, semi-mechanization construction is achieved, construction of dam galleries, slope dam faces and construction areas where vehicle traffic congestion happens can be achieved through the system and the method, and mortar construction projects are optimized.

The invention provides a near-physiological pulsating flow loading device for an intravascular stent fatigue test, and belongs to the technical field of medical instruments, and the near-physiological pulsating flow loading device for the intravascular stent fatigue test comprises a simulated blood vessel which is provided with a detection section for placing a stent to be tested; simulation liquid is suitable for circulating in the simulation blood vessel; a loading device which is internally provided with multiple sections of simulated blood vessels; the detection section of the simulated blood vessel is arranged in the loading device; according to the near-physiological pulsating flow loading device for the fatigue test of the intravascular stent, the pressure and the flow which are similar to the physiological state received after the stent is implanted into the human body are provided. The pulsating pressure enables the simulated blood vessel to generate periodic expansion and contraction deformation, and provides a compression acting force for the stent; the pulsating flow provides pulsating fluid shear force for the stent. The device more accurately simulates the real state of the intravascular stent in the blood vessel of the human body, and solves the near-physiological pulsation loading problem in the fatigue test of the intravascular stent.

The invention discloses a permanent magnet speed controller based on an ash removal mechanism. The permanent magnet speed controller based on the ash removal mechanism comprises a permanent magnet speed controller body and a base, wherein the permanent magnet speed controller body comprises a permanent magnet rotor, a conductor rotor and a speed control mechanism; the conductor rotor is mounted on a motor output shaft; the permanent magnet rotor is mounted on a load-end input shaft; transmission connection does not exist between the conductor rotor and the permanent magnet rotor; the speed control mechanism is mounted on a load shaft; the permanent magnet speed controller based on the ash removal mechanism further comprises an air compressor; and the motor and the speed control mechanism are all fixedly arranged on the base. High-pressure gases are output by the air compressor, water and the high-pressure gases or the high-pressure gases alone are delivered to a through hole plate and an ash removal nozzle, each part of the permanent magnet speed controller can be flushed by adjusting the angle of the ash removal nozzle, and secondary cleaning is not needed; the water flow velocity and gas pressure can be monitored in real time by a flowmeter and an air pressure gauge, and the flow of the water and gases can be regulated at any time; and the ash removal mechanism is combined with the permanent magnet speed controller, and the permanent magnet speed controller is a brand new mechanical device.

A device for adjusting negative pressure suction flow for minimally invasive surgery, which includes a suction catheter (6), a flow regulator (2) and a negative pressure tube (7), one end of the negative pressure tube (7) is connected to a negative pressure source (1 ), the other end is connected with the waste liquid bottle (3), the suction end of the suction catheter (6) extends into the surgical site to absorb surgical waste, and the other end is inserted into the waste liquid bottle and the waste is discharged into the waste liquid bottle under negative pressure. In the waste bottle, the characteristic is that the flow regulator (2) used to adjust the suction pressure or flow at the suction end of the suction catheter (6) is located between the two ends of the negative pressure tube (7) instead of the two ends of the suction catheter (6) between to ensure that the suction channel of the suction catheter (6) is unblocked. The invention does not cause blockage of the negative pressure suction channel and improves the operation safety.

The invention relates to a geological model test gushing substance testing device and its use method, which mainly consists of an inlet pipe, a connecting piece, a vertical outlet pipe, a horizontal outlet pipe, a flow meter, a spacer and a valve, and the connecting piece is a three-way The right end of the inlet pipe is connected to the left end opening of the connector, the top of the vertical outlet pipe is connected to the lower opening of the connector, the left end of the flowmeter is connected to the right end of the connector, and the right end of the flowmeter is connected to the horizontal outlet pipe. Connection; the spacer is set in the connector, and the valve is installed on the vertical outlet pipe. The present invention can collect tunnel and underground engineering water and mud inrush model test disaster gushes, can reflect the change law of groundwater and gushes in real time, and can calculate the change of rock and soil porosity with time, which is relevant Theoretical research provides accurate basic data.

The invention provides a water pressure monitoring device. The water pressure monitoring device comprises a fire hydrant, a detector mounted on the fire hydrant and a monitoring center connected with the detector. The detector is connected with the monitoring center through a wireless network. The monitoring center comprises a data processor and a display. The data processor is connected with the display, a keyboard, a printer, an alarm unit, a data storage unit and a data transceiver. The detector comprises a micro-control chip circuit which is connected with a water pressure sensor, a flow sensor, a tilt angle sensor, a tamper-resistant sensor, an identity recognition module, a buzzer, a positioning module, the data transceiver, a power supply and a data interface. The power supply comprises a power supply control circuit. The power supply control circuit is connected with a photovoltaic panel, a storage battery and an external power supply. The water pressure monitoring device can monitor the water pressure, flow and safe states of the fire hydrant in real time and monitor the fire hydrant through the wireless communication technology to achieve the purpose of effective management.

The invention discloses a flow monitoring device for an air energy heat pump, and relates to the technical field of energy-saving heat pumps. The flow monitoring device comprises a conveying connecting pipe, a pressure regulating pipe and an electromagnetic monitoring sleeve, wherein a conveying screw is arranged in the conveying connecting pipe, a spiral keel and a conveying disc are installed on the peripheral side face of the conveying screw, and a permanent magnet bolt is arranged on the surface of the conveying disc, and is matched with a magnetic guide bolt in the electromagnetic monitoring sleeve, the conveying disc is arranged, air flow impacts a vortex plate on the surface of the conveying disc to enable the vortex plate to rotate, on one hand, the air flow can be conveyed to the next stage through an air hole and a spiral keel, and on the other hand, the rotating conveying disc drives the magnetic guide bolt to rotate, and magnetic force signals are converted into electric signals. A timing instrument is used for recording the circulating time of the fixed flux, the flow of fluid in the pipe can be monitored, and the flow speed of internal air flow can be monitored in real time; and then the flow monitoring device is matched with a subsequent pressure regulating pipe and a pressure indicating pipe to measure and calculate the pressure of fluid in the pipe, so that multiple monitoring work of flow, flow velocity and pressure in the heat pump pipe is realized.

The invention discloses a heat energy control valve system in a steelmaking production pipeline under a framework of the Internet of Things. The heat energy control valve system comprises a touch screen control terminal, wherein the output end of the touch screen control terminal is connected with a wireless network control module through a wireless network, and the output end of the wireless network control module is electrically connected with a switching value input module. According to the invention, a PLC can be remotely controlled through the wireless network, the working state of a valve can be provided in real time, and opening or closing of the valve is remotely controlled through a mobile phone APP; the working state of a medium in a pipeline is provided in real time, and pressure, temperature and flow can be detected in real time; the temperature and flow of the pipeline can be directly balanced according to big data; and the flow change of each branch pipe is monitored in real time, an alarm is given in real time when the flow is abnormal, the phenomena of leakage, leakage and water loss are completely eradicated, remote control can be achieved through digital signals, and intelligent monitoring in the automatic production and machining process is achieved.

The invention provides an unbalanced drilling device and method with a gas-liquid two-phase flow flux segmented real-time monitoring function. The unbalanced drilling device with the gas-liquid two-phase flow flux segmented real-time monitoring function comprises an unbalanced drilling system (101) and a choke manifold (102). The unbalance drilling system (101) comprises a first pressure sensor (4), a first manual flat valve (6), a hydraulic drive throttle valve (5) and a mass flow meter (14) which are sequentially connected to a first pipeline (20) in series. The unbalanced drilling system (101) further comprises a control center (13) and a signal receiving and transmitting table (3). The unbalanced drilling device with the gas-liquid two-phase flow flux segmented real-time monitoring function carries out outlet gas-liquid two-phase flow segmented real-time measurement and adjusts pressure at a wellhead based on the flux change, and the downhole complex problems of a narrow density window, spray and leakage coexistence and the like can be effectively solved.

The invention discloses a phase change waste heat recovery, ventilation and heating system for a shower room. A heating water pipe mesh grid is embedded in the bottom area of the shower room and the 2 / 3 area, close to the bottom, of a peripheral wall plate; a hot water circulating pipeline inlet of the heating water pipe mesh grid is connected with an inner water outlet of the shower room through a first connecting pipeline; the first connecting pipeline is connected with a shower hot water supply pipeline of a water inlet of the shower room through a second connecting pipeline, the first connecting pipeline and the second connecting pipeline are both connected with the initial end of a snakelike coil pipe in the heating water pipe mesh grid, and the tail end of the snakelike coil pipe is connected with an outer water outlet of the shower room through a third connecting pipeline; the first connecting pipeline, the second connecting pipeline and the snakelike coil pipe are respectively connected with a micro intelligent analysis controller, so that the temperature and flow control of hot water in the pipelines can be realized; a phase change waste heat recovery and ventilation wall plate is embedded in the 1 / 3 area, close to the top, of the peripheral wall plate of the shower room. The energy-saving and comfortable ventilation and heating effects in the shower room can be achieved.