16 results about "Water velocity" patented technology

The invention discloses a method for determining the water accumulation speed and emergency disposal safety near a reverse slope TBM tunnel water burst tunnel face. The method comprises the steps that (1) the relation between the emergency disposal time and the effective water storage volume of a tunnel and the relation between the emergency disposal time and the water pumping and draining speed near the tunnel face are established; 2) establishing a relational expression among the accumulated water speed near the tunnel net water gushing tunnel face, the accumulated water level of the tunnel face and the rising speed of the accumulated water level of the tunnel face; 3) constructing a three-dimensional model for calculating the effective water storage volume near the tunnel face, and calculating the effective water storage volume; (4) measuring the accumulated water level and the accumulated water level rising speed near the tunnel face on site; 5) calculating the speed of accumulated water near the net water gushing tunnel face of the tunnel; by establishing a relation model of the emergency disposal time and the water storage volume, constructing a three-dimensional water storage volume calculation model and combining real-time water level monitoring data, the water accumulation speed and the emergency disposal time can be accurately calculated, and the method has the advantages that the accuracy of emergency disposal decision making is improved, and the operation reliability of equipment is guaranteed.

The utility model belongs to the technical field of flow measurement floating balls, and particularly relates to a multi-sensor intelligent flow measurement floating ball which comprises a balloon and further comprises a shell fixedly installed at the bottom end in the balloon, a fixing rod fixedly installed at the bottom of the shell, and storage wheels installed on the two sides of the fixing rod in a penetrating mode. A fixing shaft is installed on the surface of the storage wheel in a penetrating mode, a rotating shaft is installed on the surface of the fixing shaft in a penetrating mode, an outer cylinder and a fixing rod are connected through an inner threaded rod, then a flow meter is installed through the outer cylinder, then a water meter is electrically connected through the flow meter, and then a turbidity meter is electrically connected through the water meter. When flow measurement is carried out on river water, the flow meter is used for detecting the water speed, then the water meter is used for monitoring the quality of the river water, and the turbidity meter is used for detecting the turbidity of the river water, so that a worker can conveniently carry out sensing detection on river water data, and the functionality and practicability of the floating ball are improved.

The invention discloses a respirator and electrical equipment. The technical problem that errors exist in water volume detection of the respirator is solved to a certain extent. The respirator comprises a shell and a water quantity detection assembly, the shell is provided with a water flow channel and a containing cavity, the water flow channel comprises a water inlet channel and a water outlet channel, the water inlet channel, the containing cavity and the water outlet channel are sequentially communicated, the water quantity detection assembly used for detecting the water inlet speed is arranged in the containing cavity, and at least part of the water flow channel is provided with a flow stabilizing section. The water inlet speed or / and the water outlet speed of the containing cavity is / are reduced.

A composite generating device based on direct-current water flow pulse vibration relates to the technical field of fluid power machinery and comprises a tee joint, a first port of the tee joint is connected with a water outlet pipe, a second port of the tee joint is sleeved with a sealed elastic telescopic structure, and a third port of the tee joint is connected with a water inlet component. The inner top of the sealed elastic telescopic structure is connected with a plugging structure connecting rod, and the lower end of the plugging structure connecting rod is connected with a plugging structure used for plugging a water inlet port of the water outlet pipe. During intermittent and regular acceleration or deceleration of water flow in the plugging structure and the sealed elastic telescopic structure, the internal average water pressure is larger than the water pressure of straight-flow water due to the action of the water hammer, so that the water flow speed of discharged water is larger than the water outlet speed of the straight-flow water; due to the fact that the water flow of the pulse water is discontinuous, and the water flow of the straight-flow water is continuous, the flow of the pulse water flow is smaller than that of the straight-flow water under the conditions of the same water pressure, the same water outlet caliber and the same water outlet time, and the purpose of saving water is achieved.

The invention discloses an intelligent watering cart, and belongs to the technical field of watering carts, the intelligent watering cart comprises a cart body, a tank body, a water conveying mechanism and a watering antiaircraft gun are mounted on the cart body, the water conveying mechanism is used for conveying water in the tank body into the watering antiaircraft gun, the watering antiaircraft gun comprises a gun body, and a water outlet adjusting part is mounted at the end of the gun body; the water outlet adjusting piece is driven to adjust the flow area of a water outlet in the end of the cannon body so as to change the water outlet speed. According to the watering cart provided by the embodiment of the invention, the water outlet adjusting piece is arranged at the water outlet of the cannon body, and the water outlet adjusting piece can correspondingly adjust the circulation sectional area of the water outlet according to the change of the irrigation distance, so that the water flow speed of the water outlet is dynamically adjusted, and the irrigation intelligence is improved; it is ensured that trees at the corresponding distance are watered at the appropriate water flow speed all the time, the trees are protected against damage, and meanwhile the original structure of soil can be prevented from being damaged.

The invention discloses a reservoir gate computer monitoring system which comprises the following steps: setting a plurality of measurement directrixes at the upstream of a reservoir, deploying a measurement point on each measurement directrix to measure a water flow velocity vector, calculating a water flow incident angle of each measurement point, and obtaining a local incident angle of each gate receiving water flow; the arc length of the arc-shaped guide rail structure is calculated according to the local incidence angle of the gate receiving water flow, the arc-shaped guide rail structure guides the side edge of the gate as a rotating shaft to achieve deflection, and the flowing direction of the water flow passing through the gate is corrected; a sensor is used for measuring the water outlet speed and the water outlet thickness of water flow passing through each gate, and each gate is controlled to deflect according to the water outlet flow; when the gate is closed, the height of the opposite side of the gate rotating shaft is vertically increased, the gate rotating shaft is controlled to be in butt joint with the bottom edge, the opposite side of the gate rotating shaft is suspended to release water flow, the water flow assists the opposite side of the gate rotating shaft in constant-speed restoration, the drainage efficiency is improved, and the bank slope scouring risk is reduced.

This application discloses a channel flow measurement method and apparatus based on big data-based velocity estimation, relating to the field of channel water flow measurement. The method includes acquiring the surface depth of water, surface depth of silt, surface velocity of water, and intra-water velocity measured using an automatic current meter at different times and locations of various measuring points under different operating conditions in a target channel; inferring the matching relationship between surface depth, silt surface depth, and intra-water velocity, or deriving the matching relationship between surface depth, silt surface depth, surface velocity, and intra-water velocity, thereby determining the flow rate of the channel under test. In this application, the matching relationship between surface depth, silt surface depth, and velocity, or the matching relationship between surface depth, silt surface depth, surface velocity, and intra-water velocity, enables accurate measurement of flow rate under extreme sediment conditions.

A water velocity meter disclosed by the present invention comprises a waterproof ventilation valve, a flange cylinder, a dry end unit and a wet end unit, the dry end unit is provided with a watertight cavity, the waterproof ventilation valve is installed on the dry end unit, the waterproof ventilation valve is communicated with the watertight cavity and an external environment, the flange cylinder is provided with a cylinder cavity, and the flange cylinder is installed on the dry end unit. The flange cylinder is installed at the bottom of the dry end unit, the cylinder cavity of the flange cylinder is communicated with the watertight cavity of the dry end unit, and the top of the wet end unit penetrates through the cylinder cavity of the flange cylinder and then stretches into the watertight cavity of the dry end unit. The wet end unit is connected to the dry end unit in a drivable mode, and the dry end unit drives the wet end unit to ascend and descend.

The application relates to the technical field of seismic data processing, and discloses a water velocity inversion and separation method, device, equipment and medium based on multi-information constraint, which comprises the following steps: suppressing virtual reflection of obtained marine node data, and determining a picked first arrival; obtaining first field measurement information and second field measurement information related to water velocity; determining an initial water velocity and a water velocity change amount with depth based on the first field measurement information and the second field measurement information; and based on the first arrival, the initial water velocity and the water velocity change amount with depth, constraining water velocity inversion and separation, and combining the first field measurement information to perform time difference correction on the water velocity. According to the scheme, the influence of virtual reflection energy on the first arrival wave time is removed through virtual reflection suppression, the calculation accuracy is improved, the inversion process is constrained by using multiple information, factors influencing the water velocity are separated, then the separated factors are used for time difference correction of the water velocity, and the instability of inversion is avoided.

The invention discloses a resonator cooling water leakage detection method, device and system and a storage medium. The resonator cooling water leakage detection method is suitable for the resonator cooling water leakage detection system, the resonator cooling water leakage detection system comprises laser drilling equipment and a monitoring platform connected with the laser drilling equipment, the laser drilling equipment comprises a resonator, and a water leakage detection rope is arranged in the resonator. Comprising the steps that when a resonator water leakage signal is not detected through a water leakage detection rope, the real-time water inlet flow and the real-time water inlet speed of a cooling water inlet pipe of a resonator and the real-time water outlet flow and the real-time water outlet speed of a cooling water outlet pipe of the resonator are obtained; and cooling water leakage fault information of the resonator is determined according to the real-time water inlet flow, the real-time water inlet speed, the real-time water outlet flow and the real-time water outlet speed, and the cooling water leakage fault information is fed back to the monitoring platform. According to the invention, accurate monitoring of cooling water leakage of the resonator of the laser drilling equipment is realized, and the safety and efficiency of the laser drilling equipment are ensured.

The invention discloses a discrete landslide surge test and whole-process wave amplitude prediction method based on speed equivalence. According to the method, a three-dimensional physical model is established according to Froude similarity criteria, and accurate control over the water entering speed of the slip mass is achieved through speed equivalence. The high-position landslide movement is divided into an initial state, a sliding-out state, a water entering state, a sliding-out stage and a sliding stage, and the speed of a slide body in each state is calculated by adopting a structural strain energy method, an improved Pankend classification method and an energy method. Through a multi-factor orthogonal test, the influence rule of the landslide sliding speed, the water entry volume and the initial water depth on the surge characteristics is systematically analyzed, and a surge whole-process prediction model system covering the initial wave amplitude, the propagation attenuation and the dam front climbing height is constructed based on test data. According to the invention, the problems of insufficient sliding speed control precision and lack of prediction model systematicness in the prior art are effectively solved, the test accuracy and prediction reliability are significantly improved, and important technical support is provided for risk assessment of landslide surge disasters in the reservoir area.

A ventilator (100) and an electrical device, the ventilator (100) comprising a housing (110) and a water flow detection assembly (130). The housing (110) is provided with a water flow channel (160) and an accommodation cavity (170), the water flow channel (160) comprising an inlet channel (161) and an outlet channel (162), and the inlet channel (161), the accommodation cavity (170) and the outlet channel (162) being connected in sequence. The water flow detection assembly (130) for detecting the inlet water velocity is disposed in the accommodation cavity (170). At least a portion of the water flow channel (160) is provided with a flow-stabilizing section (163), so as to slow down the inlet water velocity and / or the outlet water velocity of the accommodation cavity (170).

The present invention proposes a water distribution network (10) comprising at least one water line (4) extending from a water source outlet and supplying at least one loop (18) supplying a plurality of water distribution points (5) between the water line (4) and a return line (4'). A plurality of sensors (20, 21) are provided in the water distribution network (10) to obtain current values ​​of water parameters, the water parameters including at least the water velocity and / or temperature. A network monitoring module (70) adapted to receive the current values ​​of water velocity and / or temperature from the plurality of sensors (20, 21) is also proposed. A method for operating such a water distribution network is also proposed. Figure for the abstract: Fig 1

1. Name of this design: Opening of the wet end main unit of the water velocity meter. 2. Purpose of this design: The water velocity meter is used to measure the flow velocity of water; the wet end unit is used to assemble the water velocity meter, serving as the water inlet part of the water velocity meter; the opening of the wet end unit of the water velocity meter is used for water inlet. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design. 6. Other situations requiring explanation: This design is a partial design. The partial design for which protection is sought in Design 1 includes the area drawn with solid lines in the view, while the area drawn with dashed lines in the view is not for protection. The partial design for which protection is sought in Design 2 includes the design shape shown in the non-red covered area in the view, while the design shape expressed by the red covered area in the view is not for protection. The dotted-dashed lines represent the boundary lines that define the part of the product that needs protection, and the dotted-dashed lines are not for protection.

The invention relates to the technical field of water entry slamming tests, in particular to a deterministic water entry slamming test device and method under a regular wave condition. Comprising a supporting frame, a guide rail, a sliding block, a clamp, an electromagnet, an armature, an electric hoist, a flexible rope, a relay, a control box and a proximity switch. The supporting frame plays a role in overall supporting, the guide rails are fixed to the two sides of the supporting frame, and the model structure is connected with the guide rails through the clamps and the sliding blocks and has the vertical movement capacity. The upper end of the clamp is hung on an electric hoist through an electromagnet device, the electric hoist is fixed to the top of the supporting frame, the water entering speed of the model structure can be controlled by adjusting the release height, and meanwhile a flexible rope is arranged between the clamp and the electric hoist to prevent the model from touching the bottom after entering water. The proximity switch is used for feeding back the water surface height in real time so as to monitor the wave height, the target working condition wave height is set, and the relay and the control box are used for setting delay time to control release of the electromagnet.

1. The name of the design product: water speed meter. 2. The use of the design product: for measuring water flow speed. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.