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2487 results about "Magnetic valve" patented technology

System and control method for automatically compounding cement paste

The invention discloses an automatic grout mixing system and the control method thereof. The invention is characterized in that the system comprises a micro processor (1); the micro processor (1) is connected with a man-machine interface (2), a hydro cylinder magnetic valve for dust-discharging valve (5) and a densitometer (4) respectively over a wire. The hydro cylinder magnetic valve for dust-discharging valve (5) is connected with the dust-discharging valve (3). An angular displacement sensor for dust-discharging valve (6) is arranged on the dust-discharging valve (3). The density of the grout can be controlled in the following procedures of collecting data, setting density, normalizing set density and actual density, interrupting the timing, adopting the current valve location of the dust-discharging valve as the antecedent of PID integrate, calculating the PID based on the result of the normalization of the set and actual density; adopting the difference between PID output value and the valve location of the dust-discharging valve as valve location deviation, comparing the valve location deviation with a dead area and the action of flow control over the hydro cylinder magnetic valve of the dust-discharging valve performed by an output switch. Therefore, the density of the grout can be accurately controlled. The automatic grout mixing system is easy to operate and can automatically control the dynamic density.
Owner:YANTAI JEREH PETROLEUM EQUIP & TECH CO LTD

Air-conditioner defrosting method

The invention discloses a method for air conditioner defrosting, which comprises the following steps, first, a pipeline is added between an air discharge pipe of a compressor and an air inlet pipe of a condensator in advance, and a magnetic valve is arranged on the pipeline, second, the temperature of a coil pipe of the condensator and temperature of outdoor environment are detected, third, a defrosting operation is judged to be operated or not according to the temperature of the coil pipe of the condensator and the outdoor environment, if the defrosting operation is needed, the fourth step is executed, otherwise the second step is executed, fourth, the magnetic valve is controlled to open, the frequency of the compressor is controlled to reduce to a first predetermined value, a four-way change-over valve is controlled to change into a refrigerating operation, fifth, the compressor is controlled to make an indoor set convert up to a second predetermined value according to the first predetermined speed, sixth, the temperature of the condensator is judged to detect whether the temperature is satisfied for a condition of the defrosting withdrawal, if satisfied, the seventh step is operated, otherwise, the fifth step is operated, seventh, the magnetic valve is closed, the compressor is controlled to convert down to a third predetermined value according to the second predetermined speed, and the four-way change-over valve is controlled to change to a heat-producing operation. The invention provides a method for air conditioner defrosting, which solves the problem that the period of defrosting for an air conditioner is longer, and defrosting effect of the air conditioner is influenced.
Owner:HAIER GRP CORP +1

System and Method for Assisted Maintenance in a Gaming Machine Using a Mobile Device

Disclosed is a method for enabling a technician to open a door of a gaming machine without needing a physical key using a gaming system having a biometric controlled door lock. The method includes: enabling the technician to scan a barcode on the gaming machine using a camera on a mobile device; sending the image of the barcode via a network to a server; determining a gaming machine ID using the barcode decoding module, wherein the gaming machine ID is used by a gaming machine ID database to determine which gaming machine has been scanned; enabling a picture to be taken of a technician that has presented itself to the camera of the mobile device; transmitting the picture of the technician; using facial recognition software to identify the technician and authorize the technician's corresponding employee ID; receiving a mobile device identifier that is transmitted from the mobile device to the biometric lock component; enabling receipt of a technician's personal identification number that is transmitted from the mobile device to the biometric lock component; after the gaming machine receives an unlock signal, causing the door solenoid to unlock the door; wherein four credentials are passed to the biometric lock component to unlock the door solenoid, the four credentials including the employee ID, the mobile device identifier, the gaming machine ID, and the technician's personal identification number.
Owner:LNW GAMING INC

Air-conditioner defrosting method

The invention discloses a method for air conditioner defrosting, which comprises the following steps, namely magnetic valves are provisionally arranged on an outlet of a condensator and a pipe line between a four-way change-over valve and a gas side cutoff valve, the temperature of a coil pipe of the condensator and the temperature of outdoor environment are detected, a defrost operation is judged to be operated or not according to the temperature of the coil pipe of the condensator and the outdoor environment, when in defrosting operation, an indoor draught fan is controlled to operate in a lower speed, and an outdoor draught fan is stopped operating, the magnetic valve is energized to open, the compressor is controlled to operate according to a required frequency of an indoor set, and then the temperature of the condensator is judged to detect whether the temperature is satisfied for the condition of defrosting withdrawal. The magnetic valve is closed after defrosting is existed, and the outdoor draught fun is controlled to start and operate in high speed, and the indoor draught fan is controlled to recover to a normal operation. The invention provides a method for air conditioner defrosting, which solves the problem that a current air condition needs to be transferred to a refrigerating condition in the process of defrosting, and refrigerating effect of the air conditioner is not good.
Owner:HAIER GRP CORP +1

Automatic down filling machine

The invention discloses an automatic down filling machine, and belongs to the technical filed of a stowage unit for down and feather filled products. The automatic down filling machine comprises a box body, a first down stirring mechanism, a second down stirring mechanism, an electrical automatic control mechanism, a pair of weighing metering mechanisms, a pair of down output mechanisms, a pair of down filling heads and a box cavity channel start-and-stop mechanism. The box body comprises a box frame, a down storage box and a down delivering box. The first down stirring mechanism is used for stirring down in a down storage box cavity, and the second down stirring mechanism is used for stirring down in a down delivering box cavity. The pair of weighing metering mechanisms is connected with a pair of down leading out connector pipelines on two sides of the down delivering box, the pair of down output mechanisms is connected with the pair of weighing metering mechanisms, the pair of down filling heads is connected with the pair of down output mechanisms in a matched mode, and the box cavity channel start-and-stop mechanism is placed on the box frame. The electrical automatic control mechanism is provided with an electrical box body, a control panel, a programmable controller, a group of magnetic valves and a high-pressure air storage tank. The automatic down filling machine has the advantages of showing rhythmic continuity of down supplying, being capable of providing guarantee for subsequent continuously weighing and down filling, showing good down filling efficiency, reducing operation intensity of workers, eradicating down wasting and showing good automatic control effect.
Owner:苏州比阳特服装设备有限公司

Vehicle-mounted repairing equipment and method for polluted site soil and underground water body

The invention provides vehicle-mounted repairing equipment for polluted site soil and underground water body, which comprises a dry powder hopper, a level meter, a feeding motor, a stirring machine, a mixing tank, a liquid level meter, a flowmeter, a magnetic valve, a tap water pipe, a liquid preparation feeding pipe, an eclectic cabinet, a touch screen operating system, an alarm, a plunger pump, a mixed liquid output pipe and a pressure meter. A repairing method comprises the steps of: adding a solid preparation into the dry powder hopper, adding the preparation into the mixing tank by using the feeding motor, introducing water or other solvent through a water inlet pipe, stirring by using the stirring machine to ensure that the solid preparation is fully dissolved in water or other solvents to prepare a repairing preparation with required concentration; or directly adding a liquid preparation into the mixing tank, introducing the water or other solvents through the water inlet pipe to ensure that the liquid preparation is diluted into the repairing preparation with the required concentration. Through automatically or manually starting the plunger pump, the repairing preparation is pressurized and injected into a polluted medium through the mixed liquid output pipe and reacts with pollutants in the medium, thus the purpose of efficient repairing is achieved.
Owner:北京九州科睿科技有限公司

Four-feet electromagnetic adsorption wall climbing robot

InactiveCN106184452AAgile climbingClimbing is flexible and reliableVehiclesRotation - actionMagnetic valve
The invention discloses a four-feet electromagnetic adsorption wall climbing robot. The four-feet electromagnetic adsorption wall climbing robot is formed by three parts, i.e. a chassis, walking legs and a foot adsorption apparatus. The walking leg comprises a multi-joint serial-connection mechanism connected onto the chassis and driving mechanisms installed at various joints, and a free end of the multi-joint serial-connection mechanism is connected with the foot adsorption apparatus; the foot adsorption apparatus comprises a plurality of disc mounting plates and electromagnetic suckers which are connected with the multi-joint serial-connection mechanism by virtue of passive ball hinges; and in the wall climbing process of the robot, the rotation action of each joint of the walking leg cooperates with the opening-closing state of an electromagnetic switch, so that the robot flexibly climbs a plane, a cylindrical surface and a spherical surface of any curvature and can flexibly realize the actions such as cornering and transverse movement. By adopting the four-feet electromagnetic adsorption wall climbing robot, the defects in the wall climbing process of a conventional wall climbing robot can be solved, the contradiction between the wall adsorption and the movement operation is well solved, the flexibility and applicability of the wall climbing robot in real engineering application are improved, and the popularization of the robot technology is facilitated.
Owner:XI AN JIAOTONG UNIV

Octopus tentacle imitating adaptive capture soft manipulator and capture method thereof

The invention discloses an octopus tentacle imitating adaptive capture soft manipulator and a capture method thereof. The octopus tentacle imitating adaptive capture soft manipulator mainly comprises a tentacle, an air pipe, an electrical proportional valve, strain gages and a magnetic valve, wherein the tentacle imitates the shape of an octopus tentacle and is in an irregular strip cone shape, a tentacle protrusion with a large diameter is arranged at the end of the tentacle, groups of ellipsoidal pressure regulating cavities are evenly distributed in the tentacle, main air channels are distributed along the axle direction of the tentacle in the tentacle, each row of ellipsoidal pressure regulating cavities distributed along the axial direction corresponds to a main air channel, the main air channels do not directly pass through the ellipsoidal pressure regulating cavities and are connected with the ellipsoidal pressure regulating cavities through branch air channels, magnetic valves are arranged at the positions of the branch air channels for connecting the ellipsoidal pressure regulating cavities and the main air channels, the strain gages are placed between each two groups of the ellipsoidal pressure regulating cavities, the ellipsoidal pressure regulating cavities produce different shape changes so as to control tentacle to bend through feedback of signals of the strain gages and match between the magnetic valve and the electrical proportional valve, and the tentacle winds objects by controlling a plurality of groups of the pressure regulating cavities.
Owner:BEIJING UNIV OF CHEM TECH

Safety control method for conditioner utilizing flammable refrigerants

A safety control method for a conditioner utilizing flammable refrigerants comprises the following steps: a detecting the density of the indoor flammable refrigerants by a sensor in the indoor side of the conditioner; b entering into step c when the density of the indoor flammable refrigerants detected by the conditioner is greater than or equals to a warning condition density, and otherwise, the conditioner runs in a user set model continuingly; c starting a warning state, opening an indoor air blower and an outdoor air blower of the conditioner and recycling the flammable refrigerants in the indoor side to the outdoor side; d closing a compressor and a second magnetic valve when the warning time is greater than n minutes or the low-pressure pressure is lower than p MPa; and e closing the indoor air blower and the outdoor air blower of the conditioner when the density of the indoor flammable refrigerants detected by the conditioner is lower than the warning condition density and the warning state is relieved, and entering into step a. The conditioner can recycle the flammable refrigerants in the indoor side to the outdoor side when the situation of refrigerant leaking happens, reduces the leakage rate of the refrigerants in a room to the greatest extent, lowers the risks of flaming in the room and exploding of the compressor, and therefore, ensures the personnel safety of a user to the greatest extent and avoids unnecessary property loss.
Owner:GUANGDONG MEIZHI PRECISION MFG

Secure wireless leak detection system

A method utilizing a wireless leak detection and prevention system, used for preventing property damage and personal injury caused by liquid or gas leak. The system comprised of a wireless, battery operated apparatus having sensor(s) incorporated with an RF transmitter, used for detecting liquid or gas leaks, and transmits signal(s) to a wireless valve shutoff control unit. The valve shutoff control unit containing an RF transceiver and a processor designed to receive the detected signals and activate a supervised solenoid or motorized valve shut-off mechanism to stop the detected leak. In a preferred embodiment of the invention, the wireless valve control unit is connected to a motor, which is mounted on manual shutoff valve. Wherein the valve control unit activates the motor to produce torque to turn the valve towards a close position in response to a received detected leak signal from a sensor. An electronic or electromechanical circuitry is provided, to detect motor or gear turn cycles. The motor rotation is being controlled by the valve control unit processor, which stops motor rotation in response to a detected preset number of motor turn cycles. A digital, voice, SMS text message phone dialer is add to dispatch the detected leak signals, and notify monitoring personnel of the supervised system operation status. And provide user access to turn on or off a valve(s) from a remote location.
Owner:RUGGIERI MONICA L +1

Food purifying machine

The invention provides a food purifying machine relating to the technical field of food cleaning devices. The food purifying machine comprises a rack part, a control part, a water catalyst device and an air pump device; one side of a cleaning tank is provided with a filter tank; a filter screen is arranged between the cleaning tank and the filter tank; the water inlet of the rack is communicated with a current equalizer; a water inlet pipeline is provided with an electromagnetic valve and a water level valve; the bottom of the cleaning tank is provided with a water discharge port; a man-machine interface plate is fixed on the rack; the air inlet of the air pump is provided with an air pump filter; the air outlet of the air pump is communicated with a jet pipe group at the bottom of the cleaning tank through a pipeline; the jet pipe group is provided with a plurality of jet pipe holes; a filter pipe is arranged in the filter tank of the cleaning tank and is communicated with the water inlet of a magnetic pump through a pipeline; the water outlet of the magnetic pump is communicated with the current equalizer through a pipeline; the current equalizer and a water catalyst generator are arranged in a box-shaped chamber; and the box-shaped chamber is communicated with the cleaning tank. The food purifying machine has the effects of disinfection, sterilization and pesticide residue removal, and is used for food purification.
Owner:CHINA NAT FOOD PURIFICATION TECH BEIJING CO LTD

Synchronous control circuit and method for rail-vehicle-rescue emergency braking

PendingCN107235041AAchieving Brake Synchronization RequirementsAvoid the "discount" problemBrake safety systemsIsolation valveEmergency rescue
A rail vehicle rescue emergency braking synchronous control circuit, which is connected in parallel to the normally closed contact of the linked relay and the emergency braking relay on the emergency braking train line circuit of the lead car of the rescue vehicle and the faulty vehicle, and is used for rescue trains Rebuild the emergency braking train line circuit after connecting with the faulty train; at the same time, configure the brake isolating switch on the head car of the rescue vehicle and the faulty car, connect the rescue head and tail relay and brake isolation relay in parallel, and the emergency braking of the driver's station The normally closed contact of the button is connected in series to the circuit of the emergency brake train line, and the brake isolation solenoid valves of all vehicles are connected in parallel to the circuit of the emergency train line, and the power is supplied by the circuit of the emergency train line. The valve realizes the synchronous control of emergency braking under rescue conditions. The control method of the present invention is safe and reliable, and the synchronization is precise, which saves more than 3 million yuan in procurement costs for the entire project, saves equipment installation space, and ensures installation and maintenance space for the configuration of full-motion vehicles + driverless vehicles.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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