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 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 discloses a flow monitoring and alarming method for a mobile terminal, a storage device and a mobile terminal. The mobile terminal respectively obtains the total flow consumed by all applications within the day and the month; the total flow within the day is compared with the pre-set first threshold value; the total flow within the month is compared with the pre-set second threshold value, wherein the pre-set first threshold value is less than the pre-set second threshold value; when the total flow within the month is less than the pre-set second threshold value and the total flow within the day is equal to the pre-set first threshold value, alarm information is sent; when the total flow within the month is equal to the pre-set second threshold value, the mobile data flow is turned off automatically; and furthermore, prompt information is sent. The flow is monitored in real time; when the flow used in the day or the month is beyond the pre-set value, an alarm can be given in time, so that users are reminded to turn off an application or turn off the mobile data flow; and thus, unnecessary flow waste loss can be avoided.

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 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 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.

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 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.