430results about "Volume/mass flow by mechanical effects" patented technology

The invention belongs to the technical field of float flowmeter detection, and particularly relates to a float flowmeter detection device for a visual imaging small oxygenerator, which comprises a detection bin, a test board is fixed on the left side of the interior of the detection bin, a float flowmeter is arranged above the test board, a pressing cylinder is fixed on one side of the test board, and the pressing cylinder is fixed on the other side of the test board. The output end of the pressing air cylinder makes contact with the upper end of the float flowmeter and presses the float flowmeter. An air pressure valve is fixed to the left side of the upper portion of the detection bin, the lower portion of the float flowmeter is connected with an air inlet pipe, the air inlet pipe is connected with an external air source pipeline, the external air source pipeline is connected with the air pressure valve, the upper portion of the float flowmeter is connected with an exhaust pipe, and the air pressure valve is manually adjusted. In the prior art, the position of the floater is manually identified by naked eyes, the precision is poor, and the pressure on the upper side and the lower side of the floater cannot be kept constant, so that the test quality is greatly reduced.

The invention discloses a three-rotor flow meter device, a control method and a control system, the three-rotor flow meter device comprises a shell, a plurality of rotors and a data acquisition unit, and the data acquisition unit is used for acquiring multi-modal data such as front and back pressure difference, medium temperature, absolute viscosity, vibration spectrum and rotating speed of the rotors in real time. The control system carries out real-time fusion and processing on collected original data through a decision making unit, calculates simulation slip flow based on a digital twinning dynamic compensation model, and corrects pulse equivalent in real time through an execution unit, so that high-precision dynamic compensation of flow output is achieved, and it is ensured that measurement errors are always within a preset range. Meanwhile, the system has an intelligent early warning function, and early fault diagnosis and predictive maintenance can be realized based on multi-parameter threshold comparison. According to the three-rotor flow meter, the measurement precision, stability and reliability of the three-rotor flow meter under the complex working condition are remarkably improved, and the three-rotor flow meter is particularly suitable for flow measurement under the high-viscosity medium condition.

A turbine (3) for a spirometer (1) comprises a hollow tubular body (5) containing a rotor (12) which is mobile around a longitudinal axis (K) of this tubular body (5) and two deflectors (11) placed at an intake opening (7A) and at an output opening (7B) of said body (5), the rotor (12) comprising small blades (14, 15) which are facing one another and being disposed between said deflectors (11), the deflectors comprising an annular body (25) and a fulcrum (21) disposed along a longitudinal axis of this annular body (25) coinciding with the longitudinal axis (K) of the tubular body (5), between said fulcrum (21) and said annular body (25) a plurality of blades (22) being provided which are integral with the fulcrum itself and with the annular body, said blades (22) delimiting a plurality of sectors (30) for the passage of air directed towards the rotor. Each blade (22) has a continuous surface development which is defined by a plurality of different sections of surface which have a curved, flat form, and are interconnected to one another, said blade having a flat end section of surface (45) in the vicinity of the rotor (12) which can direct the air output from the deflector orthogonally to a plane containing the longitudinal axis (K) of the tubular body, and orthogonally onto the small blades (14, 15) of said rotor (12).

A flow sensor for sensing fluid flow. The flow sensor includes an exterior, interior, a circuit board, and first and second ports. The first and second ports permit fluid to flow into and out of the interior. A Hall Effect Sensor in the interior detects the number of revolutions of an impeller. An electric coupler interfaces with the flow sensor and a transmitter for communication of the revolutions of the impeller to a controller. The controller determines the rate of fluid flow in a conduit. The controller issues a command signal to a component of a hydraulic system to alter the rate of fluid flow in the conduit.

The invention discloses a metal tube float flowmeter based on an intelligent sensor, and relates to the technical field of float flowmeters, the metal tube float flowmeter comprises a tube body and a detection mechanism, an instrument is fixed on the outer side of the tube body through a bolt and used for realizing flow display, the instrument is connected with a Hall element, the detection mechanism used for flow detection is installed in the tube body, and the Hall element is connected with the detection mechanism. And the locking mechanism is used for realizing initial locking of the detection mechanism. According to the metal tube float flowmeter based on the intelligent sensor, the elastic regulation and control mechanism is arranged at the position of the liquid inlet of the tube body, peak kinetic energy of fluid is actively absorbed through elastic deformation of the first spring, and therefore the fluid entering the tube body can be buffered, pulsating flow of the external input fluid is effectively converted into stable flow, and the flow rate of the fluid is increased. Jumping of the floater body is greatly reduced, the problem that reading is difficult due to jumping of the floater body can be solved, the positive error of an average measured value caused by pulsation can be avoided, and the accuracy of detection data is guaranteed.

The invention discloses an integrated gate flow measurement and calibration method, relates to the technical field of gate flow, solves the problem that an optimal coefficient combination cannot be quickly found due to the fact that model calibration is not automatically carried out, and specifically presets various model algorithms by fully considering the characteristics of different water outlets in actual engineering. An operator can conveniently select an adaptive algorithm and accurately confirm the current gate passing flow in real time only according to the confirmed flow state and engineering parameters, the accuracy and timeliness of flow measurement and calculation are effectively improved, diversified engineering scene requirements are met, and the flow measurement and calculation efficiency is improved based on measured parameters and actual working conditions of a standard flow meter. A specific and practical flow calculation formula is provided, and an operator can flexibly select and use the formula according to the actual situation on site. No matter a square gate culvert or a circular gate culvert, under different gate states and flow states, the undetermined flow can be accurately calculated, and the comprehensiveness and reliability of flow measurement are guaranteed.

The invention relates to the technical field of measurement, in particular to the technical field of monitoring the state of invisible fluid by measuring and estimating the flow of the fluid through pulsed light signals, and particularly discloses a hydropower station gallery grouting state monitoring method based on pulsed light signal measurement. The method comprises the steps of grouting hole background parameter collection, real-time grouting process parameter collection, data processing and abnormal feature extraction, the grouting state is judged according to a matching result, and feedback decisions of grouting system maintenance, pressurization, pressure reduction, intermittent grouting or stop of replacement of new grout are given. The method can objectively and directly confirm that the target fracture and the stratum are filled with the grout, a non-tampering original data chain is provided for grouting quality evaluation, and the long-term safety and reliability of hidden projects such as hydropower station dams and dam foundations are greatly improved.

The utility model relates to the technical field of flow meters, in particular to a pointer adjusting type dry contact metal tube float flow meter alarm switch which comprises an alarm pointer, a shell is sleeved outside the alarm pointer, one end of the alarm pointer is connected with a magnetic switch, a supporting seat is arranged inside the shell, and a magnet is arranged at one end of the supporting seat. When the flow of the flow meter reaches a preset threshold value, the magnetic substance in the metal pipe triggers the ferromagnetic material in the reed pipe, so that the circuit in the reed pipe is closed, the magnetic switch and the alarm pointer are triggered at the moment, and then the flow meter outputs an alarm signal. A dry contact signal of the reed switch is controlled through the magnet, the reed switch can be directly connected into an electrical loop in series, an external power supply is not needed, an isolation gate or a relay is not needed, electric sparks are not generated when the reed switch is used as the dry contact signal during triggering, and therefore contact abrasion and electric arcs are not caused.

The invention discloses a water cup which comprises the components of a cup body which comprises a cup opening and is internally provided with an accommodating cavity; the cup cover covers the cup opening; the suction nozzle is arranged on the cup cover and is communicated with the accommodating cavity; the water quantity detection device is used for measuring flow data of the liquid flowing out of the containing cavity and / or liquid level data of the liquid in the containing cavity; the display device is arranged on the cup cover and / or the cup body; and the display device is used for displaying the flow data measured by the water volume detection device and / or the drinking water information determined based on the flow data. According to the water cup, the combination of the water volume detection device and the display device is adopted, the water volume detection device can detect data information related to the water volume in the water cup and display the data information in the display device, and therefore a user can check the data information through the display device at any time, and real-time monitoring and management of the individual water drinking volume are achieved.

The utility model belongs to the technical field of flow meters, and particularly relates to a novel flow meter structure, which comprises a first shell and a second shell, a liquid outlet pipe and a liquid inlet pipe are respectively arranged at the outer ends of the first shell and the second shell, the novel flow meter structure is characterized in that a rotor is arranged in the first shell, two counter bores are symmetrically arranged on two sides of the surface of the rotor, and the counter bores are arranged in the first shell. The two cylindrical magnets are pressed into the two counter bores respectively, the first shell and the second shell are fixed through a fixing structure, the effects that the magnets do not need to be placed while production is conducted on an injection molding machine, the work of embedding the magnets is removed, a rectangular sealing ring is replaced with a circular sealing ring, and therefore the production efficiency and the sealing performance of the flow meter are improved.

The stable impeller mechanism for the intelligent water meter comprises a wheel shaft, a pin shaft, an upper support, a lower support and blades, the upper support and the lower support are fixedly arranged on the surface of the wheel shaft, the blades are fixedly arranged between the upper support and the lower support, and the blades are tightly connected with the wheel shaft; according to the stable impeller mechanism used by the intelligent water meter, the upper support, the lower support and the blades are arranged, the two ends of the blades are fixedly installed between the upper support and the lower support, meanwhile, the stable impeller mechanism is fixedly installed on the wheel shaft, and when water flow passes through the blades, pressure can form effective supporting through the upper support and the lower support; and the blade is stably used, instability caused by operation of a traditional blade is avoided, and the use requirement is met.

A gas leakage meter (100) for use onsite in a process plant comprises a housing (110) with an inlet (101), an outlet (102) and an inlet nozzle (111) fluidly connected to a unit to be tested (3) through a downstream connector (1040) and to the inlet (101), the housing (110) being filled with a liquid to a level (10). An inclined pipe (120) is arranged such that, in use, test gas released from the inlet nozzle (111) raises through a liquid and the inclined pipe (120) to a gas-collecting chamber (122) at an upper end of the inclined pipe. (120). The gas-collecting chamber (122) has a gas release valve (150; 170) for releasing test gas before a test period. Embodiments where the inclined pipe (120) is mounted on a pivot and alternative gas release valves (150, 170) are also disclosed.

The invention provides a water meter variable-pitch impeller assembly which comprises an impeller shell, a water meter variable-pitch impeller, a water meter variable-pitch impeller, a water meter variable-pitch impeller and a water meter variable-pitch impeller. The multiple blades are evenly distributed in the circumferential direction, the blades are rotationally installed on the side wall of the impeller shell through blade shafts, and the rotating axes of the blades are perpendicular to and intersect with the axis of the impeller shell; the first bevel gear is arranged at the end part of the blade shaft; the inner barrel is fixed in the mounting cavity and is coaxial with the impeller shell; the second bevel gear is coaxial with the inner cylinder body, is rotatably mounted at the upper end of the inner cylinder body, and is meshed with each first bevel gear; and the motor is coaxially fixed in the inner barrel, the output end of the motor is connected with the second bevel gear and used for driving the second bevel gear to rotate, and then the deflection direction and the deflection angle of the blades can be adjusted. According to the variable-pitch impeller assembly of the water meter, the rotary blades are adopted, the deflection angle and direction of the blades can be accurately controlled, the variable-pitch impeller assembly can adapt to different water flow environments, the application range is wide, the service life is long, and bidirectional accurate metering can be achieved.

The present invention provides a method for measuring air volume within the cross-section of an air duct in a non-uniform wind field, comprising: by using an electrical signal of a rotating speed measurement unit corresponding to at least one of speed measurement fans of different specifications arranged within the cross-section of an air duct in a non-uniform wind field, counting rotations of the speed measurement fan, and then by means of processing of a monitoring analysis unit, calculating a rotating speed value and converting the rotating speed value into circumferential wind speed; on the basis of the circumferential wind speed, and the outer diameter and flow calibration factor of the speed measurement fan, calculating air volume in a plane area measured by the speed measurement fan; repeating said steps to respectively calculate air volume in plane areas measured by the remaining speed measurement fans, and then calculating an area-weighted average of all the speed measurement fans, i.e., the air volume within the cross-section of the whole air duct. On the basis of the torque generated by the wind speed of wind going through the plane covered by the average blade surfaces of the speed measurement fans, as well as on the basis of the average wind speed of wind going through the cross-sectional area covered by the blades and generated by weighted averaging upon the wind passing through the rotating shafts of the speed measurement fans, a weighted value is calculated according to area, thereby using a similar method to obtain the average wind speed on the basis of overall data of a plurality of speed measurement fans, so as to accurately measure air volume within the cross-section of the air duct in the non-uniform wind field.

The invention discloses a rainfall flood all-dimensional monitoring system which comprises a bottom foundation base arranged on the ground or at the water bottom, and a floating type monitoring mechanism is arranged above the bottom foundation base. The floating monitoring mechanism and the bottom foundation seat are both connected to the vertical telescopic rod, the axes of the floating monitoring mechanism, the bottom foundation seat and the vertical telescopic rod coincide, a transverse connecting arm is installed at the position, located above the water surface, of the upper portion of the vertical telescopic rod, and the transverse connecting arm is connected with an elastic outward-expanding rainfall monitoring mechanism. The rainfall capacity can be accurately monitored in real time, meanwhile, surface runoff is monitored, specific rainfall flood data information is effectively judged in time, and corresponding measures are taken according to the obtained data information to prevent rainfall flood disasters. The method is suitable for the technical field of rainfall flood monitoring.

Described is a lithium logging tool. The lithium logging tool includes a sampling and separation module, a lithium concentration module, a microprocessor, and a power module. The sampling and separation module obtains a sample of a fluid from a wellbore and separates hydrocarbons from the sample. The lithium concentration module extracts lithium from the sample. The microprocessor analyzes data related to the fluid in periodic intervals and determines a concentration of lithium in the sample. The power module is configured for providing power to the sampling and separation module and the microprocessor.

This invention provides a smart, energy-saving water meter with anti-drip function and its installation method, belonging to the field of water meter technology. The smart, energy-saving, anti-drip water meter includes a water meter, two water inlets fixedly connected to both sides of the water meter, a sleeve fixedly connected to the circumferential surface of one of the water inlets, and a locking mechanism including a first fixing ring, a second fixing ring, bolts, bolt rings, and a water pipe. Four bolts are provided. The water pipe is located inside the sleeve. The bolt rings are fixedly connected to the circumferential surface of the water pipe, the first fixing ring is fixedly connected to the circumferential surface of the sleeve, the second fixing ring is fixedly connected to the circumferential surface of the water pipe, and the bolt rings are threaded to the inner circumferential wall of the sleeve via a threaded rod and nut. When it is necessary to fix the water pipe and the sleeve, they can be connected through the locking mechanism. This ensures stability when the sleeve and the water inlet are connected and prevents leakage during water use, protecting the stable operation of the water source.

An apparatus and method for use in determining one or more fluid flow properties of a fluid in a conduit is disclosed. The apparatus includes a substrate including a barrier, a first flow sensor coupled to the substrate and a second flow sensor coupled to the substrate. The first flow sensor is located at a first sensor distance from a first barrier surface, and the second flow sensor is located a second sensor distance from the second barrier surface. The first sensor distance is substantially equal to the second sensor distance. In operation, the first flow sensor produces a first sensor signal, and the second flow sensor produces a second sensor signal. The direction of flow for the fluid is determined by comparing the first sensor signal to the second sensor signal.

The invention provides a helical vane type water meter, and belongs to the technical field of water meters. The partition plate is arranged in the water inlet cavity of the flow channel of the shell and located on the side far away from the water inlet, water flow entering the water inlet cavity can be blocked at the far end, the turbulent flow influence caused by direct impact of the water flow is avoided, the monitoring precision is improved, and meanwhile, the water flow is prevented from entering the water inlet cavity. The impeller assembly is rotationally installed in the fluid director which is formed by directly connecting and combining the upper fluid guiding part and the lower fluid guiding part, so that the structure for supporting the impeller assembly is simpler, the number of structures needing to be matched with each other is small, the problem that the two ends of a rotating shaft of an integrated impeller are not coaxial due to machining and assembling precision is solved, structural errors are reduced, and the machining efficiency is improved. Besides, one end of the rotating shaft of the integrated impeller extends out of the fluid director and then is provided with a magnet, the magnet is isolated from water flow, the problem that the magnet is interfered by impurities such as rust existing in the water flow is avoided, the monitoring precision of the water meter is further improved, and the service life is prolonged.

A system may include a disposable flow sensor and a base for the disposable flow sensor. A method may include scanning, with an optical scanner of the base for the disposable flow sensor, a flow sensor label attached to the disposable flow sensor to decode a flow sensor identifier associated with the flow sensor, scanning, with the optical scanner of the base for the disposable flow sensor, a patient label attached to a patient to decode a patient identifier associated with the patient, and connecting the disposable flow sensor to the base.

The present invention discloses a high-precision flow and metering conversion device, and relates to the technical field of water metering devices. The present invention arranges an infrared emitting device, a reflective sheet, and at least three infrared receiving devices on the water meter. The reflective sheet is connected to the impeller assembly of the water meter in a transmission manner. When water passes through the water meter, the reflective sheet will be driven to rotate. The reflective sheet includes a reflection area and an absorption area. The infrared reflecting device emits infrared rays in the direction of the reflective sheet, and the reflected infrared rays are received by the infrared receiving device. When in use, the infrared receiving device under the absorption area cannot receive the infrared signal, thereby measuring the water consumption, measuring the water flow rate by the signal jump speed of the infrared receiving device, and detecting the direction of the water flow by the signal jump sequence of the infrared receiving device. The present invention has a simple structure and is easy to use.

To provide a water meter unit control system capable of detecting water leaks with high accuracy.SOLUTION: A water meter unit 10, a waterworks department side information terminal 20 and / or a user side information terminal 30 are connected in a communicable state through a network. The water meter unit 10 includes a water meter 1 for measuring the flow rate of water flowing in plumbing, a valve 2 provided on an upstream side or a downstream side of the water meter 1 in the plumbing, and a control unit 3 for controlling the water meter 1 and the valve 2. The control unit 3 detects a water leak in the case of determining that water is caused to flow after the elapse of a prescribed continuous usable time on the basis of a measurement result of the water rate of water by the water meter 1, and notifies the waterworks department side information terminal 20 and / or the user side information terminal 30 of the water leak of the plumbing through the network.SELECTED DRAWING: Figure 1

The present invention discloses a sewage discharge measurement device, comprising: a metering valve seat, a metering component box, a wheel component and a metering component, wherein an inlet flange and an outlet flange are respectively arranged on both sides of the metering valve seat, a guide cone head and a cone tail seat are fixedly installed inside the metering valve seat, the wheel component is rotatably installed on the relative inner sides of the guide cone head and the cone tail seat, and the metering component box is fixedly installed on the top surface of the metering valve seat, and the input end is electrically connected with the output end of the wheel component and the metering component. In the present invention, by setting a multi-metering sensor component structure, the main metering gear seat and the metering gear rod are driven to rotate when the water flushes the wheel component, and the second metering sensor and the rotation counter on the surface of the main metering gear seat and the metering gear rod respectively perform different bases of measurement, thereby obtaining accurate measurement data, and performing mechanical transmission measurement in special scenarios to avoid interference caused by impurities in the water.

An agricultural system for determining a header throughput of a harvester includes a header having a frame and an auger assembly supported relative to the frame. The auger assembly includes an auger configured to direct a flow of harvested materials through the header, and an auger support assembly, the auger support assembly having an auger support member configured to support the auger relative to the frame, with the auger being rotatable relative to the auger support member. The agricultural system further includes a sensor associated with the auger assembly, where the sensor is configured to generate data associated with a load-related parameter of the auger support assembly. Additionally, the agricultural system includes a computing system communicatively coupled to the sensor and configured to receive the data generated by the sensor and to determine a header throughput based at least in part on the data.

A traverse mechanism for measuring flow characteristics in a fluid flow path is provided. The traverse mechanism includes a rotating member configured to rotate 360 degrees about an axis in a circumferential direction. The traverse mechanism also includes a probe coupled to the rotating member. The probe extends in a radial direction relative to the axis through a portion the rotating member into the fluid flow path. Rotation of the rotating member enables the probe to map or measure one or more flow characteristic in the fluid flow path 360 degrees about the axis in the circumferential direction.

The invention discloses a large-pipe-diameter flow measuring device which comprises a rectifying grating, a reducing branch pipe, a stop valve assembly and a flow meter, and the rectifying grating is arranged on the inner wall of a main pipe; the inlet section of the reducing branch pipe extends into the main pipe, is arranged at the center of the main pipe and is positioned at the downstream position of the rectifying grid, the outlet section of the reducing branch pipe is communicated with the main pipe again, and the pipe orifice of the inlet section of the reducing branch pipe is of a reducing structure; the stop valve assembly is arranged in the reducing branch pipe; the flow meter is arranged at the middle section of the reducing branch pipe, a data processing module is arranged in the flow meter, and the data processing module can calculate the fluid flow in the main pipe through the measured flow in the reducing branch pipe by combining parameters such as the pipe diameter proportional relation of the main pipe and the reducing branch pipe. The flow state of fluid is effectively improved, and the precision of flow measurement in the whole large-pipe-diameter main pipe is improved.

The utility model relates to the technical field of medical apparatus and instruments, and provides a flow testing device which comprises a water storage tank, a flow meter and a flow meter, an inlet of the constant liquid level tank is communicated with an outlet of the water storage tank through a connecting pipe, and when the switch is turned on, the experimental water in the water storage tank flows into the constant liquid level tank through the connecting pipe; an overflow port is formed in the side wall, close to the top, of the constant-liquid-level tank, and when the water level in the constant-liquid-level tank exceeds the overflow port, redundant experimental water is discharged through the overflow port, so that the water level of the constant-liquid-level tank is kept constant; one end of the test hose is connected with the outlet of the constant liquid level tank; and the test connector is connected with one end, far away from the constant liquid level tank, of the test hose and is used for connecting a tested medical pipeline. Compared with the prior art, the flow testing device provided by the utility model has the advantages that the whole flow testing device is simple and effective in design and operation method, software and electronic components do not need to be matched for use, and the flow testing device is more friendly to operators.

A measurement system that can be used at a patient's bedside to monitor the amount of blood withdrawn from the patient. The system uses disposable sensors and electronics to accurately measure the amount of blood withdrawn from the patient in real time using a paddle wheel sensor. The rotation of the paddle wheel is correlated to the amount of blood withdrawn and collected from the patient.

The invention discloses a performance testing device and a performance evaluation method of a greenhouse gas analyzer. The device comprises a multi-port selector valve, a plurality of input ports of the multi-port selector valve are respectively connected with first to nth input gas paths, and an output port of the multi-port selector valve is respectively connected with a gas path of an instrument to be tested and a gas path of a standard instrument through a three-way interface; the to-be-measured instrument gas path and the standard instrument gas path are the same in gas path structure and comprise a stop valve and a three-way connector which are connected in sequence, one of the three-way connectors is used for being connected with the rotor flow meter, the other one of the three-way connectors is used for being connected with the mass flow controller, and the mass flow controller is used for being connected with the to-be-measured instrument or the standard instrument. The test requirements of performance evaluation of the greenhouse gas analyzer, including calibration and linear test, repeatability and drift test, water vapor correction test and the like, can be met, relatively complex matrix effect test and comparison test between instruments can also be performed, and the condition that a test pretreatment device is repeatedly built in the long-term test process is avoided.

The utility model discloses a hot water meter based on a Bluetooth module, which relates to the technical field of hot water meters and comprises a detection cylinder, a meter body is arranged at the top of the detection cylinder, detachable end plates are arranged at the two ends of the detection cylinder, an external channel is fixedly arranged at the top end in the detection cylinder, an extension cylinder is fixedly arranged on one side of the external channel, and a Bluetooth module is arranged in the extension cylinder. A blade shaft is arranged in the extending cylinder, and a plurality of blades are fixedly arranged at one end of the blade shaft. The blades are driven to rotate through flowing of hot water, the flame-retardant guide rod synchronously rotates along with rotation of the blades, the rotating speed of the flame-retardant guide rod is detected through the rotating speed sensor, and therefore the flow of the hot water is judged according to the rotating speed; therefore, the rotating speed sensor is less affected by the heat of the hot water in the working process, the rotating speed sensor is prevented from being damaged due to long-time contact with the high-temperature hot water, and the protection effect on electronic components is greatly improved.