157 results about "Electromagnetic pump" patented technology

The embodiment of the invention relates to the technical field of induction pumps, in particular to a high-temperature liquid metal electromagnetic pump which comprises a main body, an inductor, a temperature sensor and an excitation controller. The main body is hermetically connected with a conveying piece for conveying high-temperature liquid metal; the inductor is arranged to enable the high-temperature liquid metal in the main body to generate induction current and enable the high-temperature liquid metal to generate pressure difference at different positions of the main body, so that the high-temperature liquid metal can flow at different positions; the temperature sensor monitors the temperature in the main body; the excitation controller is set to be capable of adjusting the power supply voltage and frequency of the inductor; the main body is arranged to be capable of preventing heat transfer of the high-temperature liquid metal to the inductor. The electromagnetic pump can meet the sealing requirement of high-temperature liquid metal conveying; flow control is facilitated, and the requirement for controllable conveying of high-temperature liquid metal in the molten salt electrolysis dry-method technological process is met; the failure of the high-temperature liquid metal electromagnetic pump can be avoided, and the operation stability and reliability of the electromagnetic pump can be improved.

This invention discloses a scraper-type permanent magnet synchronous electromagnetic pump. The pump body has a pump chamber with an opening at one end. An end cover is sealed and fixed to the opening end of the pump chamber. A cam rotor is installed in the pump chamber. The rotating shafts at the front and rear ends of the cam rotor are rotatably connected to the end cover and the pump body, respectively. One end of the upper scraper and the lower scraper are fixed to the inner wall of the pump chamber by upper and lower torsion springs, respectively, dividing the pump chamber into a low-pressure chamber on the left and a high-pressure chamber on the right. The upper and lower torsion springs apply a spring force pointing towards the axis of the cam rotor to the upper and lower scrapers, respectively. The volume of the low-pressure chamber is larger than that of the high-pressure chamber. A winding is embedded in the inner wall at the bottom of the pump chamber or the inner surface of the end cover. Correspondingly, a pair of permanent magnets is embedded in the end face of the cam rotor near the winding. When the cam rotor rotates, the upper and lower scrapers swing, and their free ends always press against the outer circumferential surface of the cam rotor, scraping the fluid on the surface of the cam rotor. The cam-blade rotor, in cooperation with the upper and lower scrapers, improves the overall stability.

This application provides a control device, method, electronic device, and storage medium for extraction pressure and flow rate, including: a first end of a first electromagnetic pump and a first end of a second electromagnetic pump are both connected to a first end of a flow meter; a second end of the flow meter is connected to a water tank; and the second ends of the first and second electromagnetic pumps are both connected to a first end of a heating boiler module. A water delivery pipe between the second ends of the first and second electromagnetic pumps and the first end of the heating boiler module is connected to the first ends of a first and second pinhole pressure relief valve module, respectively; the second ends of both the first and second pinhole pressure relief valve modules are connected to the water tank. The second end of the heating boiler module is connected to the first end of an extraction solenoid valve, and the second end of the extraction solenoid valve is connected to an extraction head. An extraction pressure sensor is installed between the extraction solenoid valve and the extraction head to ensure sufficient flow rate and water flow for effective and stable coffee extraction.

The utility model discloses a low damping pulsation electromagnetic pump, including pump shell, pump core, solenoid and elastic reset piece, the solenoid is sleeved in the outside of pump shell, be equipped with the water passageway and be equipped with the water inlet and the water outlet of water passageway both ends in the pump shell, the pump core is under the action of the magnetic field of solenoid and the elastic reset piece and reciprocates in the water passageway, be equipped with the Tesla valve flow channel in the pump core, the both ends of Tesla valve flow channel have positive and negative direction mouth, the positive direction mouth is linked together with the water inlet, the negative direction mouth is linked together with the water outlet. The utility model discloses an electromagnetic pump, still guarantee electromagnetic pump to have the water pumping capacity and the effect of accelerating and pressurizing to water flow under the condition of not using check valve, because of not having check valve, the water pressure loss is smaller. In addition, the utility model discloses a kind of intelligent closestool using above-mentioned low damping pulsation electromagnetic pump.

This application discloses an induction electromagnetic pump, comprising an inner iron core, a pump groove structure, multiple support structures, multiple annular windings, and multiple outer iron cores. The pump groove structure is a hollow annular structure including an inner tube wall and an outer tube wall. The end of the pump groove structure that receives liquid metal is defined as the input end, and the end that outputs liquid metal is defined as the output end. Multiple support structures are connected between the inner and outer tube walls, located at the input and output ends respectively, and can reduce the thrust opposite to the flow direction of the liquid metal caused by end effects. Through the above configuration, the support structures can improve the connection stability between the outer and inner tube walls, which is beneficial for the induction electromagnetic pump to pump liquid metal, and can also increase the total thrust of the induction electromagnetic pump in pumping liquid metal along the flow direction.

1. Name of the designed product: electromagnetic pump (screw interface type). 2. Use of the designed product: for quantitative pumping of oil. 3. Design points of the designed product: in the perspective view. 4. Picture or photo best indicating the design points: perspective view.

The utility model discloses an extrusion casting machine adopting an electromagnetic pump for low-pressure mold filling. The extrusion casting machine comprises an electromagnetic pump mold filling system, a mold, a sealing and extrusion composite device, a mold locking device, a mold moving device, a guide column, a heat preserving furnace and a lifting mechanism, the lower die is connected with a static template, and the upper die is connected with a movable template; a piston rod of the mold moving device is connected with the movable template; the mold locking device and the sealing and extruding composite oil cylinder are mounted on the movable mold plate; the lower end of the guide pillar is fixed on the static template and penetrates through the center of the mold locking device; the heat preserving furnace is positioned below the static template; the electromagnetic pump mold filling system is fixed on the heat preserving furnace; the electromagnetic pump mold filling system is tightly connected with a lower mold of the mold through a liquid rising pipe; a sealing extrusion composite punch is mounted at the free end of an extrusion piston rod assembly of the sealing extrusion composite oil cylinder; a liquid inlet of the lower mold is communicated with a liquid outlet of the heat preservation furnace through a liquid rising pipe and an electromagnetic pump mold filling system in sequence; the heat preservation furnace comprises a soup adding chamber far away from the liquid outlet, and the soup adding chamber communicates with the liquid outlet through a communicating vessel.

The application provides a circulating system equipped with a diving cylindrical linear induction electromagnetic pump, the electromagnetic pump is arranged in a container filled with liquid metal in a longitudinal direction, an inert gas tank is arranged for sealing, and a heat dissipation fin structure is arranged outside an external stator of the electromagnetic pump. The diving electromagnetic pump circulating system significantly reduces the floor area and weight of the liquid metal circulating loop, greatly improves the service life of the liquid metal circulating loop under different working conditions, and can effectively solve the requirements of equipment in robustness and light weight in extreme environments such as deep sea and deep space.

The objective is to provide an electromagnetic pump malfunction detection device that can accurately determine whether or not there is a malfunction in the pump without being affected by external vibrations. [Solution] The configuration of the electromagnetic drive pump abnormality detection device according to the present invention is an electromagnetic drive pump abnormality detection device that pumps fluid by causing a plunger to reciprocate using an electromagnetic coil, and comprises a varistor inserted in parallel with the electromagnetic coil, a voltmeter arranged on a drive circuit that supplies power to the electromagnetic coil, and a determination unit that determines an abnormality from the value acquired by the voltmeter, wherein the determination unit acquires the minimum value V1 of the voltage after a first predetermined time Ta has elapsed from the falling edge of the drive voltage and before a second predetermined time Tb has elapsed, and if the minimum value V1 falls below the threshold V0, it determines that the plunger is operating normally and that it is functioning normally, and if the minimum value V1 does not fall below the threshold V0, it determines that the plunger is locked and that it is functioning abnormally.

A power generator is described that provides at least one of electrical and thermal power comprising (i) at least one reaction cell for reactions involving atomic hydrogen products identifiable by unique analytical and spectroscopic signatures, (ii) a molten metal injection system comprising at least one pump such as an electromagnetic pump that provides a molten metal stream to the reaction cell and at least one reservoir that receives the molten metal stream, and (iii) an ignition system comprising an electrical power source that provides low-voltage, high-current electrical energy to the at least one steam of molten metal to ignite a plasma to initiate rapid kinetics of the reaction and an energy gain. In some embodiments, the power generator may comprise: (v) a source of H2 and O2 supplied to the plasma, (vi) a molten metal recovery system, and (vii) a power converter capable of (a) converting the high-power light output from a blackbody radiator of the cell into electricity using concentrator thermophotovoltaic cells with plasma light recycling or (b) converting the energetic plasma into electricity using a magnetohydrodynamic converter.

The utility model discloses an electromagnetic pump which comprises a water inlet structure, a water outlet structure and a plunger, the water inlet structure is connected with the water outlet structure in a sealed mode, a water cavity is formed between the water inlet structure and the water outlet structure, the water inlet structure is provided with a water inlet channel communicated with the water cavity, and the plunger is arranged in the water inlet channel. The water outlet structure is provided with a water outlet channel communicated with the water cavity, the plunger is movably arranged in the water cavity, and the plunger is of a hollow structure with the two ends open. Wherein the water inlet structure is of an integrated structure, and the water outlet structure is of an integrated structure. Only one sealing structure needs to be arranged, the risk of water leakage is reduced, the number of parts is reduced, and assembling is convenient.

The utility model discloses a novel trace metering pump, which comprises an electromagnetic pump valve body and an electromagnetic component matched with the electromagnetic pump valve body, a liquid inlet and a liquid outlet are respectively arranged on the electromagnetic pump valve body, a working cavity is arranged on the electromagnetic pump valve body, the liquid inlet is communicated with the working cavity through a liquid inlet inner cavity, and the liquid outlet is communicated with the working cavity through a liquid outlet inner cavity. A liquid inlet valve assembly is arranged on the liquid inlet inner cavity, a liquid outlet valve assembly is arranged on the liquid outlet cavity, a metering pump leather cavity is fixedly arranged at the end of an electromagnetic iron core of the electromagnetic assembly, the liquid inlet valve assembly comprises a liquid inlet valve body and a liquid inlet valve limiting part, and the liquid outlet valve assembly comprises a liquid outlet valve body and a liquid outlet valve limiting part. The liquid inlet valve limiting part and the liquid outlet valve limiting part are each of a plane structure, an original V-shaped one-way valve is replaced with the liquid inlet valve limiting part and the liquid outlet valve limiting part of the plane structures, flow instability caused by partial bonding cannot be generated, and meanwhile flow instability caused by the fact that air cannot be exhausted is avoided.

The utility model relates to the technical field of electromagnetic pumps, in particular to an electromagnetic pump guide rail detection device, which is characterized in that a vertical beam is vertically fixed at the rear part of the top surface of a substrate; the telescopic cylinder is vertically fixed to the top of the front wall of the vertical beam, and a piston rod of the telescopic cylinder extends downwards. The top end of the connecting sleeve fixedly sleeves the bottom end of the telescopic cylinder piston rod; the top of the calibration rod is fixedly connected to the bottom of the connecting sleeve. The bottom sleeve is fixed at the front part of the top surface of the substrate, and the center line coincides with the center line of the calibration rod; and the bottom end of the cylindrical bracket is fixedly sleeved in the bottom sleeve. Therefore, when the plunger type electromagnetic pump is produced and machined, the inner diameter of the guide rail can be efficiently and accurately detected.

The diesel engine unit fuel tank cleaning device comprises a filtering mechanism, an oil pumping pipe connector, an oil pumping pipe, an oil conveying pipe, an electromagnetic pump and a high-pressure nozzle, an oil inlet and an oil outlet are formed in the filtering mechanism, the oil inlet of the filtering mechanism is connected with the oil pumping pipe connector through the oil pumping pipe, and the oil outlet of the filtering mechanism is connected with the oil conveying pipe connector through the oil conveying pipe. An oil outlet of the filtering mechanism is connected with a liquid inlet of the electromagnetic pump, a liquid outlet of the electromagnetic pump is connected with the high-pressure nozzle through an oil feeding pipe and connected with an oil stain discharging port of a fuel tank to be cleaned through an oil pumping pipe connector, then the high-pressure nozzle is inserted into the fuel tank to be cleaned from an oil filling port, the electromagnetic pump is started, and dirt on the inner wall of the fuel tank is impacted through the high-pressure nozzle. Fuel oil and dirt mixtures are filtered through the filtering mechanism under the action of the electromagnetic pump, the cleaning effect of the fuel tank is achieved in a circulating filtering mode, and the device can be used for daily cleaning and maintenance of the fuel tank.

An integrated platform, method, and non-transitory computer-readable medium for optimizing performance of an electromagnetic pump is provided. In some aspects, the method includes receiving, by a design module of an integrated platform operated using a computing system, electromagnetic pump parameters corresponding to an electromagnetic pump for moving conducting fluid, and simulating, using a performance module of the integrated platform, a performance of the electromagnetic pump based on electromagnetic pump parameters received on the design module. The method also includes modifying the electromagnetic pump parameters to optimize the electromagnetic pump, and generating and transmitting, using the integrated platform, instructions for producing at least one component of the electromagnetic pump based on modified electromagnetic pump parameters.

The invention discloses a semi-closed full-automatic filling machine, and relates to the technical field of filling machines, the semi-closed full-automatic filling machine comprises a fork groove type base plate, an electric hoist and a servo motor, a material box is arranged right above the fork groove type base plate, a control module is arranged on one side of the material box, the control module is electrically connected with an electromagnetic pump through an electric wire, and the electromagnetic pump is electrically connected with the electric hoist. The electromagnetic pump is used for controlling starting, stopping and operating parameters of the electromagnetic pump, and the input end of the electromagnetic pump is fixedly connected with a butt joint flange so as to be in sealed butt joint with an external feeding pipeline; the output end of the electromagnetic pump communicates with the feeding head through a conveying pipeline, and a positioning mechanism is arranged on the outer side of the material box. According to the invention, a clamping and positioning structure of the symmetrical clamp plates is driven by the air cylinder, so that self-adaptive rigid clamping can be realized for material boxes with different specifications, and the problems of deviation and toppling of the material boxes in the filling process are effectively avoided; and an electric hoist is matched to drive the height adjustment function of the material injection pipe, so that the filling requirements of material boxes with different liquid levels and different sizes can be met.

The present application relates to a kind of exhaust pressure stabilizing safety valve body module, for solving the complex structure of the existing similar coffee machine pressure stabilizing, pressure relief, higher cost input, and when water tank has no water, the problem of not water after electromagnetic pump emptying.The valve body module includes multi-channel main body, exhaust assembly, the exhaust port of the inner passage of the multi-channel main body is provided with the exhaust assembly, the exhaust pin of exhaust assembly is slidingly limited in the inner end of exhaust port, exhaust pipe connector is sealingly fixed to the outer end of exhaust port, the spring is arranged between the inner end of exhaust pin and the inner end of exhaust pipe connector, the side of exhaust pin is provided with exhaust groove, under the initial action of spring, the inner end of exhaust pin and the inner end of exhaust port are abutted to form sealed state;When the inner end of exhaust pin is compressed by the pressure increase of the inner passage of multi-channel main body, the inner end of exhaust pin and exhaust port are unsealed, and part of gas-liquid in channel body is discharged through the exhaust groove in the side of exhaust pin and exhaust pipe connector.

The utility model relates to the technical field of electromagnetic pump production, in particular to an electromagnetic pump air tightness detection device, which is characterized in that positioning plates are arranged on the front side of the middle part of the top surface of a bottom frame in parallel in pairs and respectively extend along the transverse direction, and the top ends of the two positioning plates in pairs are provided with corresponding positioning notches; the rear end of the air inlet joint is provided with an air inlet sleeve hole which is sleeved and matched with a liquid discharge nozzle of the electromagnetic valve; the side wall of the air inlet joint is provided with an air inlet hole of which the inner end is communicated with the air inlet sleeve hole and the outer end is connected to air pump equipment through a pipeline; the telescopic cylinder is used for pushing the air inlet connector backwards. The exhaust plate is fixed to the rear side of the middle of the top face of the bottom frame. An exhaust sleeve hole matched with a liquid inlet nozzle of the electromagnetic valve in a sleeved mode is formed in the position, right opposite to the positioning notch, of the exhaust plate. The water tank is fixed at the top rear end of the underframe; the front end of the air delivery pipe sleeves the rear end of the exhaust sleeve hole, and the rear end of the air delivery pipe extends into the inner cavity of the water tank; the problems that the operation is inconvenient and the efficiency is not high when the air tightness detection is carried out on the plunger type electromagnetic pump are well solved.

The present application relates to the field of fatigue test, in particular to a kind of tubular sample dynamic liquid lead bismuth alloy loop corrosion fatigue test device and use method.Tubular sample is installed between upper and lower base, the lower end of tubular sample is sequentially communicated with the through hole in lower base, liquid lead bismuth alloy inlet pipe, the upper end of tubular sample is sequentially communicated with the through hole in upper base, liquid lead bismuth alloy outlet pipe.Tubular sample outer paste thermocouple real-time monitoring and control liquid lead bismuth temperature, outer surface installation extensometer strain measurement.Liquid lead bismuth is driven by electromagnetic pump through storage tank, enters reaction kettle and is heated and oxygen is controlled, after flow rate is measured by flowmeter, it flows into tubular sample, then backflow to storage tank and forms loop.The outer wall of loop pipeline is equipped with armored electric heating and thermal insulation cotton, to ensure temperature control.The present application realizes the accurate control of high-temperature liquid lead bismuth temperature, dissolved oxygen and flow rate, supports dynamic strain control fatigue test, and evaluates the corrosion fatigue performance of material in flowing high-temperature liquid lead bismuth environment.

The invention relates to an electromagnetic pump with an anti-adhesion device and a control method of the electromagnetic pump. The electromagnetic pump comprises a pipe body, an iron core, a rubber head, a sealing structure and a plurality of magnet yoke rings. A sealing cavity is formed among the pipe body, the iron core, the sealing structure and the rubber head; an elastic piece is arranged in the tube body; a conical groove is formed in the side, facing the ejector rod, of the iron core. The magnetic yoke ring is provided with a coil and is used for outputting electromagnetic force and sensing the position of the iron core; the induction current is used for judging whether the rubber head is ejected; the pipe body comprises a water outlet pipe which is provided with a conical structure for guiding. The magnetic yoke ring is provided with the coil, electromagnetic force can be output, the position of the iron core can also be sensed, and when the iron core is located at different positions, the induction currents of the coil are different so as to judge whether the rubber head is ejected open or not and whether the pump works normally or not. After the pump is placed for a long time, the power supply is set to be 40 Hz or lower than 40 Hz, the iron core is driven to move, the movement stroke of the iron core is increased, and the force for pushing away the rubber head is increased. A conical structure is arranged in the water outlet pipe and can guide the ejector rod.

The utility model discloses an electromagnetic pump structure of a water pick, which comprises a pump body, and a plug rod seat is arranged in an inner cavity of the pump body; a coil; a reset device is arranged on the plug rod; the top of the plug rod is provided with a second slope corresponding to the first slope, the angle of the second slope is smaller than that of the first slope, the bottom end of the pump body is provided with a third slope, the bottom of the plug rod extends outwards to form a limiting part, and the limiting part is provided with a fourth slope corresponding to the third slope. Compared with the prior art, the utility model has the following beneficial effects: the first inclined plane corresponds to the third inclined plane and has a larger angle, the second inclined plane corresponds to the fourth inclined plane and has a larger angle, and the upper oblique angle of the third inclined plane is closest to the first inclined plane; the upper oblique angle of the fourth inclined plane is closest to the first inclined plane, and a stable upward force is formed through the effect of the closest magnetic force.

The invention relates to a heat transfer module (M) for a liquid-metal-cooled, loop-type fast neutron nuclear reactor (1), comprising an expansion tank (20), a heat exchanger (21) and an electromagnetic pump (22), the module alone forming a heat exchange loop between the primary liquid sodium circuit and the secondary circuit containing a gas, such as nitrogen, which is a closed Brayton cycle.

The utility model discloses an automatic continuous swing arm spraying device for the surface of a high-precision ceramic chip, which is characterized in that a spraying valve (9) is arranged inside a spraying bin (5), a servo motor (1) is arranged on the left side of the spraying bin (5), an eccentric transmission wheel (2) is assembled on the servo motor (1) and is connected with the spraying valve (9) through a swing arm support (4), a separant barrel (13) is communicated with the spraying valve (9) through a rubber pipe (11), and the spraying bin (5) is provided with a swing arm. The rubber pipe (11) is provided with an electromagnetic pump (12) and a peristaltic pump, the spraying valve (9) is communicated with a compressed air pipe (7) through a first connector (8), a conveying platform (17) is arranged below the spraying valve (9), and the conveying platform (17) carries a sheet (18) to be sprayed and a sprayed finished product (20). The spraying device meets the spraying requirements of workpieces of different specifications, reduces waste and reduces production cost.

The application relates to an emergency system and method suitable for a satellite device, the emergency system comprising a solar panel, a pipeline device, an electromagnetic power generation device, an induction heating device, a heat dissipation device, an electromagnetic pump and an energy storage device; the pipeline device comprises a serpentine pipeline and a flow pipeline in communication; the serpentine pipeline is arranged on the back of the solar panel; the pipeline device is used for connecting the solar panel, the electromagnetic power generation device, the induction heating device, the heat dissipation device and the electromagnetic pump, so that a flowing working medium can circulate and flow in the pipeline device; the solar panel and the electromagnetic power generation device are electrically connected with the energy storage device; and the energy storage device is electrically connected with the induction heating device and the electromagnetic pump. In this way, the satellite device can effectively respond even when power failure and heat dissipation failure occur in an extreme environment, and the stable operation of the satellite in various complex environments is ensured.

The utility model relates to the technical field of steam ironing, in particular to a steam ironing machine which comprises an ironing machine main body, the ironing machine main body is provided with an ironing panel, a main control chip, an electromagnetic pump, a water tank, a boiler and a sensor are arranged in the ironing machine main body, the sensor corresponds to the ironing panel in position, and the electromagnetic pump is connected with the water tank. The sensor is electrically connected with the main control chip, the main control chip is electrically connected with the electromagnetic pump, the water inlet end of the electromagnetic pump is connected with the water tank through a pipeline, and the water outlet end of the electromagnetic pump is connected with the boiler through a pipeline. According to the steam ironing machine, the sensor is arranged in the vertical direction of the ironing panel of the steam ironing machine, when clothes enter the detection range set by the sensor, the steam ironing machine is automatically started, the problem that a switch is frequently switched in the ironing process is solved, the situation of energy waste is avoided, and use of a user is further facilitated.

This invention provides a dual-stator self-regulating electromagnetic pump for high-temperature conductive media, comprising a first pipe and a second pipe, the second pipe being coaxially disposed inside the first pipe, forming an annular cavity between the first pipe and the second pipe for the flow of the high-temperature conductive media; an outer stator assembly is disposed outside the first pipe, the outer stator assembly being configured to generate a traveling wave magnetic field, the traveling wave magnetic field being used to act on the high-temperature conductive media within the annular cavity and generate a Lorentz force to drive the high-temperature conductive media to flow along the annular cavity; at least one set of regulating stators is disposed axially inside the second pipe, the regulating stators being used to generate a compensating magnetic field acting on the high-temperature conductive media within the annular cavity to increase the Lorentz force on the high-temperature conductive media.

The miniature electromagnetic pump comprises a coil shell, a sealing cover and a diode piece, a coil framework is integrated in the coil shell, and the outer surface wall of the coil shell is fixedly connected with a splicing seat. In the application, the terminal I, the terminal II and the copper insert are correspondingly inserted into the plurality of groups of mounting holes in the coil framework, so that the connection of the terminal I, the terminal II and the copper insert with the coil is realized, the enameled wire is welded on the copper insert and the terminal I, the diode is buckled and connected between the copper insert and the elastic sheet buckle at the top of the terminal I, and the screw is subsequently unscrewed by a screwdriver, so that the diode is clamped and connected with the copper insert. After the quick-release front cover is detached, the top of the elastic piece is pressed by a screwdriver and the elastic piece buckles are opened, the old diode can be pulled out, and after a new diode is combined between the two groups of elastic piece buckles and the sound of'clamping 'is heard, the diode is installed in place, so that the convenience of dismounting and replacing the diode is improved while the stable operation of the electromagnetic pump is ensured.

A kind of stator assembly, its coil assembly includes coil former with sleeve and winding around the outer periphery of sleeve, sleeve has hollow hole, coil former has upper flange and lower flange at the axial both ends of sleeve and limit winding;Magnetic yoke installed on the outer periphery of coil assembly has upper and lower end plate respectively met with the flange of both ends of coil former;Magnetic sleeve is set in hollow hole both ends and contact with upper and lower end plate;Magnetic sleeve is double-layer structure by inner sleeve and outer sleeve, double-layer total thickness is (2.5-4) mm, magnetic yoke thickness is (2.5-4) mm, can economically and reliably use 2.5mm or more magnetic sleeve to improve magnetic conductivity, split thick magnetic sleeve into two thin magnetic sleeves, forming processing precision is high, not easy to deform.

The utility model discloses an enzymolysis reaction tank with an automatic feeding function, which relates to the technical field of automatic feeding of enzymolysis reaction tanks, and comprises a tank body and a motor, the upper surface of the tank body is fixedly connected with a connecting cover, a connecting pipe is fixedly connected in the connecting cover, and the connecting pipe is connected with the motor. According to the ultrasonic liquid level measuring device, the time interval from ultrasonic wave emission to reflected wave receiving can be accurately measured through a circuit system in the sensor, so that the liquid level height of liquid is calculated, the liquid level height is continuously measured, a liquid level signal is transmitted to a control system, and the liquid level can be accurately controlled. When the ultrasonic liquid level sensor detects that the liquid level rises to a set low liquid level threshold value, the control system judges whether the feeding flow of the electromagnetic pump needs to be adjusted or not according to a preset control algorithm, the feeding amount and the feeding speed of raw materials can be integrally and accurately controlled, and the reaction is carried out according to the optimal condition.

This invention discloses an electromagnetic pump for solving the problem of outlet plug adhesion, comprising: an inlet structure, an electromagnetic structure, and an outlet structure. One end of the inlet structure is connected to one end of the outlet structure, and the electromagnetic structure is sleeved outside the inlet structure. A sleeve with a water hole is provided between the inlet and outlet structures, and an outlet plug is provided inside the outlet structure. The outlet structure includes a pin mechanism on its side wall, comprising: a sleeve, a pin inside the sleeve, and a return spring. The pin moves radially along the outlet plug, and the return spring abuts against the outside of the pin and the outlet structure. After the pin pushes the outlet plug, it is reset by the return spring, thus detaching the outlet plug from the inlet structure. This invention solves the problem of pump failure and pump stoppage caused by outlet plug adhesion during reuse, avoiding the risk of pump performance failure and extending the pump's service life.