71results about How to "Convenient for daily operation" patented technology

The invention discloses an oil well intermittent pumping control system and method. The oil well intermittent pumping control system comprises an oil pumping unit, a controller and a motor, wherein the motor is connected with the oil pumping unit and used for driving the oil pumping unit; a rotational speed sensor and an electric parameter acquisition module are arranged on the motor and used for acquiring the output shaft rotational speed and the current and voltage value of the motor and sending to the controller; a load sensor and a displacement sensor are arranged on the oil pumping unit, connected with the controller and used for sending measured values of the load and the displacement of a well sucker rod of the oil pumping unit to the controller; and the controller is connected with the motor through a frequency converter and used for controlling start and stop of the motor. According to the oil well intermittent pumping control system, reasonable control is performed according to actual liquid outlet conditions, the requirement for supply and production coordination of an oil well is satisfied, intelligent stroke frequency adjustment and intelligent dynamic interval pumping control are utilized to realize energy saving and consumption reduction of the oil well and to reduce the loss of running equipment, follow-up control meets the demand for precise control of the oil well within a stroke cycle, the running efficiency of an oil well system is further improved, and the energy consumption is reduced.

The invention relates to a production method for increasing nitrate removal capacity by a membrane method. Light brine from a brine electrolytic dechlorination working section is subjected to pretreatment, and then, enters a membrane device for filtering sodium sulfate; outlet water of the membrane device for filtering the sodium sulfate is divided into two parts; one part which is nitrate-poor brine with a concentration being lower than 3 g/l enters a primary brine device of a sodium hydroxide device for salt dissolving; the other part which is nitrate-rich brine with a concentration being higher than 45 g/l enters a refrigeration denitration unit, temperature is once decreased to -7 to -8 DEG C, and the temperature is readjusted to 1 to -3 DEG C so as to separate out Glauber's salt crystals; the Glauber's salt crystals enter a centrifuge so as to produce Glauber's salt products; and mother liquor is returned for repeated use. With the adoption of the production method provided by the invention, the content of rich nitrate is increased through refiltering the nitrate-rich brine under the conditions of existing nitrate removal device by the membrane method, and more Glauber's saltcrystals are correspondingly separated out under the condition of using the same flow of nitrate-rich brine, so that the production capacity of the nitrate removal device by the membrane method is increased, and brine with a qualified sulfate indicator is ensured to be obtained.

The invention provides a cooking utensil control method, computer equipment, a computer readable storage medium and a cooking utensil. The cooking utensil control method comprises: acquiring the typeand weight of a food material to be cooked in the cooking utensil, according to the food material type and the food material weight, determining a heating temperature, a water amount and pretreatmentduration through a food material heating treatment model, generating a pretreatment program and controlling the cooking utensil to perform pretreatment work according to the pretreatment program. According to the cooking utensil control method, the optimal heating temperature, the optimal water amount and the optimal pretreatment duration of the to-be-cooked food materials are determined through the food material heating treatment model, the pretreatment program is generated, and then the cooking utensil is controlled to carry out pretreatment work according to the pretreatment program, so that the optimal cooking effect is achieved.

The invention discloses a foam dust-fall explosion prevention device which mainly comprises a foam making tube, a foaming agent, a filter screen device, a water feed inlet, a material feed inlet, an air feed inlet, a foam discharge outlet and a spearhead. According to the invention, foams are made in the foam making tube by using the foaming agent, the filter screen device and air flows, and then the manufactured foams are discharged from the foam discharge outlet and the spearhead to carry out dust-fall operation; because the foams are good in adsorbability and ultra-large in contact surface, the dust-fall effect is prominent; dried foams can be condensed into a solid dust protection shell, and in case of explosion hazards or fires, an effect of area foam partition can be formed for carrying out explosion-proof fire fighting; and the problems that the existing dust-fall equipment is single in function and poor in dust-fall effect and coal-dust-like oily dust water-atomized falling dust is difficult to adsorb are solved. The foam dust-fall explosion prevention device has the advantages of simple structure, convenience in daily operation, safety in operation, more auxiliary functions, strong falling dust adsorbability, and large dust-fall contact surface.

The invention discloses a liquid distribution device, in particular to a hydraulic automatic liquid distribution device, which does not need to be equipped with an electric motor and can save energy. The hydraulic automatic liquid distribution device adopts the structure as follows: a hydraulic body component and a built-in gear pump component are arranged inside the casing; an additive inlet, a water supplying inlet and a mixed solution outlet are formed on the casing; and an adjusting valve component is arranged at the additive inlet of the casing. The hydraulic automatic liquid distribution device does not need to be equipped with the electric motor, takes a water supplying source as a power source to drive a hydraulic wheel to rotate, and then drives a built-in gear pump gear to rotate through two stage gears in a deceleration manner, so that liquid can be added so as to achieve the purpose of proportioning of liquid concentration. The liquid distribution device has the advantages of low use cost, high safety, wide applicability and wide application range, is convenient to operate, maintain and manage in daily time, and can be used in closed rooms, outside and underground mining working faces of a coal mine.

The invention discloses a multiple micro-hole one-way nonclogging self-protective bubbler in the glass pool fusing manufacturing domain, which is characterized by the following: shortening aperture of bubbling pipe (1) and increasing pipe hole quantity; allocating safe one-way valve (2) on the bottom of bubbling pipe (1); combining two points to construct; guaranteeing the sectional area of gas channel of bubbling pipe (1); increasing osmotic fluid resistance in the bubbling pipe (1) for glass liquid; resisting downward osmotic flow for glass liquid under static pressure action.

The invention discloses a reverse multi-angle blowing and drying device and belongs to the field of rolling equipment. The reverse multi-angle blowing and drying device comprises pressure-reduction flow distribution grooves, positioning grooves, handles, upper-lower frame fixing grooves, fixing lugs, air inlet holes, blowing nozzles and a steel hole. The air inlet holes are located in the tail of a bottom frame. The blowing nozzles communicate with the air inlet holes. Each blowing nozzle is a conical open 360-degree ring-shaped beam nozzle with a leftward opening. According to the reverse multi-angle blowing and drying device, the direction of compressed air sprayed by the blowing nozzles is opposite to the rolling direction; semicircular grooves in the central axis of the bottom frame and semicircular grooves in the central axis of a top frame are combined into the steel hole; the steel hole communicates with the blowing nozzles, the pressure-distribution flow distribution grooves are distributed in the two sides of the steel hole, and the pressure-distribution flow distribution grooves are formed by combining the corresponding grooves in the bottom frame and the corresponding grooves in the top frame; and the design of the rear-arranged blowing nozzles is adopted, the crossed release manner is adopted, and water and gas are promoted to be combined and discharged smoothly, so that the surface of red steel is free of cooling water local residues, and the surface of a steel body is uniformly cooled.

The invention discloses an asynchronous real-time brain control method driven by weak myoelectricity artifact micro-expression electroencephalogram signals. The method includes: taking a 100ms electroencephalogram signal as a single signal source, and carrying out brain control micro-expression attribute judgment by utilizing myoelectricity artifact energy proportion; Executing brain control statestart/stop brain control micro-expression detection and effectiveness judgment thereof; and starting a brain control state after judging that the brain control micro-expression is true, performing brain control micro-expression recognition and validity judgment after judging that the brain control micro-expression attribute is in the brain control state, and generating a brain control instructionfor controlling a controlled object or stopping the brain control state after judging that the brain control micro-expression is true. Start/stop of a brain control state and action operation of eight controlled objects are achieved based on brain control micro expressions, the real-time performance, flexibility and accuracy of the brain control method are effectively improved, asynchronous braincontrol interface detection and brain control micro expression effectiveness judgment are increased, the practical value of the brain control method is improved, and the brain control method can be widely applied to various brain control systems.

Lifting equipment used for loading and unloading natural gas steel cylinders comprises a supporting assembly and a rotating assembly. The rotating assembly is arranged at the upper end of the supporting assembly. A moving assembly is arranged on the rotating assembly. The supporting assembly comprises a stand column. The stand column is fixed to the ground or a movable trolley. The rotating assembly comprises rotation driving equipment and a rotating rod. The rotating rod is installed at the upper end of the stand column through a bearing. The rotation driving equipment is installed on the rotating rod. A power output shaft gear of the rotation driving equipment is engaged with a circumferential gear arranged on the stand column. The moving assembly comprises an electric hoist. The electric hoist is installed on the rotating rod through an electric hoist trolley. A clamp is connected to the electric hoist through a steel rope. The lifting equipment has the advantages of being high in working efficiency and capable of rotating in the 360-degree range and moving horizontally.

The invention discloses an intelligent gas meter based on Internet communication. The intelligent gas meter comprises a gas meter body and a gas sleeve box for accommodating the gas meter body, and ajacking assembly for jacking the gas meter body, wherein the gas sleeve box has a box cavity, the jacking assembly comprises two spring guide components fixedly connected with the bottom of the gas meter body, the two spring guide components are arranged in a front-back spaced mode, each spring guide component comprises a guide rod fixedly connected with the bottom of the gas meter body, each guide rod is sleeved with a reset spring, an electric push rod is fixedly connected with the bottom of each guide rod, the left side of the top of the gas meter body communicates with a gas inlet pipe, the right side of the top of the gas meter body communicates with a gas outlet pipe, the device further comprises a gas-sensitive sensor corresponding to the gas inlet pipe, and the gas-sensitive sensoris in communication connection with a background alarm host. The device is advantaged in that the gas meter body is protected, and daily operation of the gas meter body is facilitated.

The invention relates to a yarn tension constant compensation device. The device comprises a rack and multiple yarn guiding rods installed on the rack, a tension compensation mechanism is connected to each yarn guiding rod, each tension compensation mechanism comprises a damping cylinder, a spring arranged on the outer surface of the damping cylinder in a sleeving mode and a clamping ring, wherein one end of the damping cylinder is fixed to the rack, the other end of the damping cylinder is connected with the corresponding yarn guiding rod through a connecting plate, the spring is clamped between the end, connected to the connecting plate, of the damping cylinder and the clamping ring, the clamping ring is in threaded connection with the damping cylinder, a piston assembly inside the damping cylinder comprises a piston rod, a piston and a fixing part used for fixing the piston, the piston comprises a piston body and multiple piston sheets installed at the two ends of the piston body, the piston body is provided with multiple first oil channels and second oil channels which are cut through in the axial direction, and the first oil channels and the second oil channels are distributed at intervals in the circumference direction of the piston body. The yarn tension constant compensation device is applicable to damping and yarn-breaking-prevention of the yarn guiding rods on textile equipment.

The invention discloses an energy-saving environment-friendly household aquarium, comprising a base; a first aquarium body is arranged above the base; second aquarium bodies are arranged around the first aquarium body; the bottom of the first aquarium body is fixedly fitted with a connecting shaft; the first aquarium body is fixedly mounted inside the base through connecting components; one end, far away from the first aquarium body, of the connecting shaft is provided with a rotary driving component; each of the four corners of the bottom surface of the base is fixedly fitted with a self-locking universal wheel; first jaws are symmetrically arranged on the outer wall of the first aquarium body; one side of each first jaw is provided with a counter bore; the outer wall of each second aquarium body is symmetrically provided with second jaws; a spring plunger is fixedly screwed on one side of each second claw; and a first water pipe and second water pipes are fixedly mounted at the bottoms of the first aquarium body and the second aquarium bodies respectively. The purchase fee is saved, and the energy-saving environment-friendly household aquarium is convenient for culture lovers tooperate routinely.

The invention discloses an LNG marine fuel tank system with the ability to actively discharge liquid, comprising an electric control box, a cryogenic tank body, a cryogenic liquid, a liquid phase pipeline, a gas phase pipeline and a confluence pipe, the liquid phase pipe The pipeline is connected to the bottom of the cryogenic tank, and one end of the gas phase pipeline is connected to the gas phase space. The confluence pipe is provided with a gas phase inlet and a liquid phase inlet. The gas phase inlet is connected to the gas phase pipeline, and the liquid phase inlet is connected to the liquid phase pipeline. The converging point of the gas phase inlet and the liquid phase inlet is located in the confluence pipe, and a vaporizer, a booster device and a first one-way valve are arranged between the converging point of the gas phase inlet and the liquid phase inlet and the gas phase space to form a circulation loop. This device greatly reduces the manufacturing and maintenance costs of the liquid discharge system on the LNG marine fuel tank. The cryogenic tank is made of carbon steel, which reduces the manufacturing cost of the product, and not only reduces the manufacturing cost and difficulty of the cryogenic pump and related piping systems , which simplifies the daily operation, maintenance work and cost of the liquid discharge system.

The invention relates to the technical field of magnetic particle inspection, in particular to a special pass-type magnetic particle flaw detector for an axle with a gear. The special pass-type magnetic particle flaw detector comprises a rack, a workpiece transfer mechanism, a circumferential magnetization mechanism, a workpiece rolling mechanism, a longitudinal magnetization mechanism, an independent gear magnetization mechanism, a magnetic suspension spraying mechanism, a fluorescent lamp and an electrical control system, wherein the independent gear magnetization mechanism comprises a cross coil, a mounting plate, a lifting cylinder and a first guide rod; and when the cross coil descends, the gear can be partially surrounded. The special pass-type magnetic particle flaw detector for the axle with the gear can simultaneously complete magnetic flaw detection of the axle and the gear in one flaw detection process, and is convenient and efficient.

The invention relates to a multi-purpose solution mixer and a use method thereof, and belongs to the technical field of solution preparation. The multi-purpose solution mixer comprises a main controlunit, an operation display unit, a solution storage unit, a solution mixing unit, an atomizing and humidifying unit and a liquid outlet. The main control unit, the solution storage unit and the solution mixing unit are installed in a machine case. The operation display unit and the liquid outlet are arranged on the machine case. The main control unit is electrically connected with other units. Theoperation display unit is a display screen with a touch operation function. The solution storage unit is composed of a plurality of sealed bottles and an infusion pipe. The solution mixing unit is composed of a plurality of micro pumps, an infusion pipe and a mixing chamber, and the mixing chamber is connected with the atomizing and humidifying unit through the infusion pipe. The atomizing and humidifying unit is connected with the liquid outlet. The operation display unit sends an instruction to the main control unit, the micro pumps are controlled to pump solutions out of the sealed bottlesinto the mixing chamber to be mixed, and a mixed solution is output through the liquid outlet. The requirement of a user for configuring the mixed solution can be met.