39results about How to "Adjust flow" patented technology

The invention relates to an electro-deionization method and device for concentrating and purifying heavy metal wastewater synchronously, belonging to a wastewater treatment technique, which adopts first-stage two-section or first-stage multi-section electro-deionization device, wherein the inner sides of the positive and negative poles are arranged with corresponding pole protection chambers, the desalting chamber is filled with large-hole strong-acid strong-base mixed bed resin with narrow particles distributed; cation exchange film is adopted as the direction-turning film, after direction-turning, two adjacent concentration chambers are arranged continuously, both are separated by cation exchange film, simultaneously after direction-turning, the first concentration chamber is filled with large-hole mixed bed resin with the volume of cathode resin more than 50 percent, the heavy metal wastewater to be treated enters the desalting chamber and the concentration chamber in two paths, the heavy metal ion and cathode in the desalted water flow are transferred into the concentration chamber so as to obtain the desalted water, the concentrated water flow is partially circulated or closely circulated so as to obtain the concentrated liquid of metal wastewater, thereby recycling valence metals and pure water resources synchronously and realizing zero emission and resource treatment of wastewater. Compared with the prior art, the wastewater treatment process has higher separation efficiency, more reliable operation, more convenient operation, continuous process operation and no secondary pollution.

The invention discloses an anti-blockage system and method for irrigating biogas slurry, belonging to the field of biogas slurry irrigation. The system is characterized by comprising a biogas slurry supply branch and a clear water supply branch, thus realizing mixed irrigation and independent irrigation of biogas slurry and clear water; a soil moisture detection device and a controller are adopted to respectively control the supply quantities and mixing ratio of biogas slurry and clear water aiming at the actual moisture and fertilizer demands of the crops, thus realizing scientific and automatic irrigation of the crops; and in addition, clear water supply is not finished after finishing irrigation but clear water is adopted to wash the pipe networks in the biogas slurry irrigation districts to remove the residual organic components of the biogas slurry in the pipe networks in the biogas slurry irrigation districts, thus avoiding that microorganisms in the biogas slurry are reproduced and grow in the pipe networks in the biogas slurry irrigation districts and block the pipe networks in the biogas slurry irrigation districts.

The invention discloses a coating mold head with cavity pressure adjusted in a horizontal direction. The coating mold head includes an upper mold head and a lower mold head, a slit coating opening isformed in a front end clipper seam between the upper mold head and the lower mold head, a storing cavity is opened in the lower mold head, the storing cavity communicates with the slit coating opening, a cavity pressure adjustment mechanism is arranged on the upper mold head, and the cavity pressure adjustment mechanism includes a sliding block located in the storing cavity, and a transmission adjustment rod used to make a cam head be connected with the sliding block in a transmission mode. When the transmission adjustment rod rotates, the cam head can drive the sliding block to move in a horizontal direction of coating feeding to adjust the cavity pressure in the storing cavity. The coating mold head is provided with the cavity pressure adjustment mechanism, the cavity pressure in the storing cavity can be flexibly adjusted in real-time in the production process of coating, so that the flow velocity and flow of coating slurry can be adjusted, the coating mold head is provided with a gap adjustment mechanism coordinately, and the real-time adjustment of the flow velocity and flow of the coating slurry can be effectively finished in the production process of the coating.

The invention relates to a drip-proof throttling nozzle device and a usage thereof, which belong to the field of mechanic design, in particular to a drip-proof throttling nozzle device which effectively prevents residual liquid flows down in a large amount after spraying liquid on the nozzle and adjusts the flow of liquid and a technical scheme of the usage. The drip-proof throttling nozzle device consists of a gap membrane, a nozzle top core, a nozzle bottom core, a slotted pan head screw and a nozzle outer cover. In the invention, the nozzle is provided with a gap membrane assembly and a nozzle bottom core assembly and the two and other assemblies of the nozzle and related assembling relationship are arranged so that drip-proofing and adjustment of flow are realized when the nozzle sprays, deficiency that the residual liquid flows down in a large amount after spraying liquid on the nozzle is overcome and the flow of liquid flowing through is controlled by adjusting the nozzle. And the opening form of the nozzle is designed so that the liquid sprayed is in form of a fan to improve the spraying uniformity and covering area.

A pulsive corona discharge equipment for desulfurizing, denitrating and dusting fume is composed of gas-state hydrocarbon feeling unit, gas current distributing plate unit, water vapor and ammonia gas activating unit, pulsive corona unit and by-product collecting unit.

The invention discloses a method for evaluating the influence of to-be-tested objects (an anti-fatigue drug, an anti-fatigue and a pollutant) on the exercise tolerance of an organic body and special equipment of the method. The method comprises the following steps: (1) correcting the flow speed of a system water body; (2) screening an experimental fish shoal; (3) testing the swimming resistance; and (4) collecting experimental data, and analyzing a result. The special equipment comprises a water tank, a water pump, a container for swimming of fishes, a flow regulation valve, a flow meter, a nitrogen bottle, an oxygen bottle, a refrigerator and a high-speed camera. The method can be used for carrying out pre-warning judgment on an abnormal environmental water body, testing a drug, evaluating the exercise tolerance of different species of small-sized fishes in different water body environments, evaluating and testing the a nutritious supplementary and the like. The equipment can be automatically assembled and occupies a small area, parameters such as the temperature, the water flow speed and the dissolved oxygen amount can be controlled, and the equipment is easy and convenient to operate, relatively low in manufacturing cost and convenient for the application of relevant biological experiments.

The invention relates to a plane rotational flow generator which belongs to a generator, in particular to a plane rotational flow generator which has simpler structure and can form rotational flows parallel to the plane or an article surface. The plane rotational flow generator is provided with a base plate and an alternating current power supply, at least four upper surface and lower surface electrodes are respectively covered on the upper surface and the lower surface of the base plate, the four upper surface and lower surface electrodes are all arc-shaped electrodes which are bent along a same direction, and the four upper surface and lower surface electrodes are pairwise and equidistantly distributed in an interlaced radiation shape along a circumference. Furthermore, the upper surface electrodes are electrically connected with each other, the lower surface electrodes are electrically connected with each other, each upper surface electrode and each lower surface electrode are respectively and electrically connected with two output ends of the alternating current power supply, and the lower surface of the base plate and the lower surface electrodes are respectively provide with electrical medium material covering layers.

The invention discloses a gas pressure flow control valve of a sliding-sheet type respirator, and a working principle of the gas pressure flow control valve. The left and right ends of a gas distribution cylinder are respectively provided with a plurality of solenoids in a winding manner. The interior of the gas distribution cylinder is provided with a blocking sheet. A gas-distribution fixed sheet is in a rectangular sheet structure. The center of a gas-distribution sliding sheet is provided with a gas distribution hole. The gas-distribution fixed sheet is fixed in the gas distribution cylinder, and cooperates with the blocking sheet, thereby enabling the interior of the gas distribution cylinder to be divided into a first gas chamber, a second gas chamber, and a third gas chamber. The gas-distribution sliding sheet can be slidingly installed with the gas-distribution fixed sheet, and the gas distribution hole on the gas-distribution sliding sheet achieves the sealing and opening of left and right gas distribution holes on the gas-distribution fixed sheet, so as to achieve that a control valve controls gas pressure flow. Through the interaction of solenoids with a magnet, the position of the gas-distribution sliding sheet is adjusted. The difference in coincidence areas between sliding sheet openings and the gas distribution holes determines the opening and closing degrees. The control valve can adjust the intensity of flow and pressure of air entering into a patient.

The invention discloses a peristaltic pump head. The pump head comprises a front baffle, a rear baffle and a roller component, the front end and the rear end of the roller component are rotationally connected with the front baffle and the rear baffle respectively, one or more pipe pressing cards are arranged between the front baffle and the rear baffle, the pipe pressing piece comprises a fixing part and a pipe pressing part, the elastic hose is located between the pipe pressing part and the roller component, a fixed side arm is arranged on the two sides of the fixed part, two supporting columns are arranged between the front baffle and the rear baffle, the fixed side arms on the two sides are clamped on the two supporting columns respectively, and a spanner used for opening the fixed sidearm is further arranged between the front baffle and the rear baffle. The elastic hose is limited in the peristaltic pump through the pipe pressing clamping piece, the pressing pipe clamping piece isclamped and fixed with the front baffle and the rear baffle, no redundant detachable parts are arranged, when the number of the pipe pressing clamping pieces is large, the fixing side arm of each pressing pipe clamping piece can be pried by a spanner at one time, and the disassembling and assembling are more rapid and more labor-saving.

A wall-brushing device includes spread coating cylinder, coating transfer pipelines which one end is connected with paints-storing tubular and another end is connected with spread coating cylinder, the coating transfer pipelines are equipped with bellows pump and its driving motor, and it also includes inverse flow pipelines which one end is connected with coating transfer pipelines and another end is connected with paints-storing tubular, the inverse flow pipelines are equipped with governing valve; the governing valve includes valves of liquid inlet mouth and liquid outlet mouth, the valve body also includes valve cavity connecting liquid inlet mouth and liquid outlet mouth, the valve cavity is equipped with spools which controls liquid inlet mouth and liquid outlet mouth and is conducted with valve cavity, the front end of the spool is conflicted with the connecting position of liquid inlet mouth and valve cavity, the contact position forms sealing face, the end is connected with the rear end of valve through preloading spring. The beneficial effects of the invention are: 1. the motor and the transportation pump operate continuously and so the frequent start and stop are avoided. 2. The practical and new device realizes limiting maximum discharge pressure and adjusting the paints flow transferred into spread coating cylinder simultaneously.

The invention relates to the technical field of spiral flow stabilizers, in particular to a single-tube spiral flow stabilizer. The stabilizer comprises a motor, a speed reducer, a delivery pipe, a spiral shaft and a spiral blade. The speed reducer is connected with the motor, the spiral shaft is arranged in the delivery pipe, the spiral blade is connected with the spiral shaft, the spiral shaft is connected with a rotary shaft of the speed reducer, a material inlet is arranged at the front end of the delivery pipe, a material outlet is arranged at the rear end of the delivery pipe, and the spiral shaft rotates to drive the spiral blade to rotate to deliver materials from the material inlet to the material outlet. According to the single-tube spiral flow stabilizer, the spiral shaft is driven by the motor to rotate to drive the spiral blade to rotate, so that the materials are delivered from the material inlet to the material outlet. The flow stabilizer has the advantages of being stable in operation, low in noise, compact in structure and capable of adjusting the material flow and meeting actual production requirements.

The invention relates to the technical field of cosmetic processing and discloses cosmetic filling equipment capable of changing a discharging height and synchronously regulating a flow. The equipmentcomprises a driving chamber, wherein a motion platform is fixedly connected below the driving chamber. According to the cosmetic filling equipment capable of changing the discharging height and synchronously regulating the flow, a filling channel always keeps moving up and down in a vertical direction, the accuracy of a material liquid flowing into a cosmetic bottle is improved, and the possibility of leakage caused by filling deflection of the feed liquid is reduced; when the cosmetic bottle and a trial cosmetic bottle are filled, the height of the filling channel is correspondingly adjusted, and the problem that the filling effect is poor due to different lengths of the material receiving bottles is avoided; a screw rod rotates to cause a flow regulating plate to move close to or away from a through hole, so that the discharge flow is changed, and waste of the feed liquid, pollution to the surface of the cosmetic bottle and increasing of a workload are avoided; and the screw rod changes a downwards moving range of the filling channel and simultaneously causes the flow regulating plate to move so as to change the flow, so that the linkage among various structures of the equipmentis improved and the operation is more convenient.

The invention relates to a construction recycled aggregate fine crushing treatment device and belongs to the technical field of construction waste treatment equipment. The device comprises a rack arranged in a working environment, multiple construction waste crushers arranged on the rack and used for crushing construction aggregate, and multiple material conveying belts arranged on the rack and used for being connected between adjacent construction waste crusher bodies, and guiding assemblies used for guiding and outputting materials are arranged at the output ends of the material conveying belts. In order to improve the output accuracy of the recycled aggregate, the construction recycled aggregate fine crushing treatment device is provided and can well guide the recycled aggregate when the conveying belts output the recycled aggregate, so that the output accuracy of the recycled aggregate is improved.

The invention discloses an immersed liquid-state temperature-adjusting solid-state battery energy storage system, and belongs to the technical field of energy storage batteries. Each battery module box body is connected with one DC-DC module, all the DC-DC modules are connected in parallel and then connected with a solid-state battery management module, the solid-state battery management module is connected with a DC-AC module, and the DC-AC module is connected to an external power grid. The battery module box body is filled with temperature adjusting insulating liquid, the solid-state battery module is immersed in the temperature adjusting insulating liquid, the solid-state battery module comprises a plurality of solid-state battery single bodies, a plurality of temperature sensors are arranged in the battery module box body, and temperature sensors are connected with the solid-state battery management module. The temperature-regulating insulating liquid in all the battery module box bodies in the system circulates through a temperature-regulating insulating liquid circulating system. The temperature consistency and stability of the solid-state battery can be greatly improved, and the problems that the normal-temperature charging and discharging performance of the solid-state battery is poor, and a traditional temperature control device is poor in uniformity and low in efficiency are solved.

The invention provides an efficient electrochemical polishing device and method for the outer surface of a tungsten pipe. The method comprises the following steps that S1, pretreatment is conducted, specifically, the to-be-polished tungsten pipe is cleaned to remove impurities on the surface of the tungsten pipe, and the to-be-polished tungsten pipe is dried; S2, electrochemical polishing is conducted, specifically, a barrel is provided, the to-be-polished tungsten pipe is inserted into the barrel, the central axis of the to-be-polished tungsten pipe is made to coincide with or be parallel to the central axis of the barrel, the central axis of the to-be-polished tungsten pipe is made to be vertically arranged, electrolyte is introduced into the barrel till the barrel is full of the electrolyte, the central axis of the to-be-polished tungsten pipe is horizontally arranged, the to-be-polished tungsten pipe and the barrel are connected to an positive electrode and an negative electrode of a power source correspondingly, meanwhile, the electrolyte is circularly guided into the barrel, the electrolyte is left to stand, the central axis of the to-be-polished tungsten pipe is vertically arranged, introduction of the electrolyte is stopped, the barrel is opened for exhausting and left to stand, the power source is disconnected after polishing is finished, and the tungsten pipe is taken out; and S3, post-treatment is conducted, specifically, the tungsten pipe is cleaned and dried. According to the efficient electrochemical polishing device and method, efficient polishing of the tungsten pipe is achieved, the polishing efficiency is effectively improved, and the polishing quality is excellent.

A coal powder burner can avoid scale and high-temperature corrosion in vertical gradient burning boiler, wherein a back side d1 of dense first injector is fixed with a dense secondary injector, the dense first airflow and the axis of the dense second airflow have a corner at beta 1, a dilute second airflow can be arranged at the back of the dilute first injector. The two airflows can improve the injection rigidity to confirm the oxidization condition near the water cooling wall and reduce the temperature near the water cooling wall, to avoid scale and high-temperature corrosion. The invention can arrange space or baffle between the dense first injector and the dense secondary injector, to reduce the mixing between the dense first airflow and the dense secondary airflow.

The invention discloses a cylinder body full core assembly pouring system and relates to the technical field of casting of castings. The system comprises a transverse pouring gate, a sprue and a slowflow filtering cavity. Slow flow channels are symmetrically connected to the discharging side of the bottom of the sprue. Discharging openings of the slow flow channels are connected with the transverse pouring gate through the slow flow filtering cavity. A sprue nest is arranged at the bottom end of the sprue. The cylinder body full core assembly pouring system has a good metal liquid filtering function, and is provided with a reasonable slag storing cavity structure, the cross section changes smoothly, and metal liquid is guided smoothly.

The invention discloses a permanent magnet speed controller based on an ash removal mechanism. The permanent magnet speed controller based on the ash removal mechanism comprises a permanent magnet speed controller body and a base, wherein the permanent magnet speed controller body comprises a permanent magnet rotor, a conductor rotor and a speed control mechanism; the conductor rotor is mounted on a motor output shaft; the permanent magnet rotor is mounted on a load-end input shaft; transmission connection does not exist between the conductor rotor and the permanent magnet rotor; the speed control mechanism is mounted on a load shaft; the permanent magnet speed controller based on the ash removal mechanism further comprises an air compressor; and the motor and the speed control mechanism are all fixedly arranged on the base. High-pressure gases are output by the air compressor, water and the high-pressure gases or the high-pressure gases alone are delivered to a through hole plate and an ash removal nozzle, each part of the permanent magnet speed controller can be flushed by adjusting the angle of the ash removal nozzle, and secondary cleaning is not needed; the water flow velocity and gas pressure can be monitored in real time by a flowmeter and an air pressure gauge, and the flow of the water and gases can be regulated at any time; and the ash removal mechanism is combined with the permanent magnet speed controller, and the permanent magnet speed controller is a brand new mechanical device.

The invention relates to a vertical vortex generator which belongs to a generator, in particular to a vertical vortex generator which has simpler structure and can directly generate vertical vortexes on a flat surface or a smooth article surface. The vertical vortex generator is provided with a base plate and a power supply, at least two pairs circular electrodes and at least four pairs of arc electrodes are covered on the upper surface and the lower surface of the base plate, one pair of circular electrodes is respectively arranged at the center of both sides of the base plate, the arc electrodes are respectively connected with circular upper surface electrodes and circular lower surface electrodes which are positioned at the center of the upper surface and the lower surface of the base plate and uniformly, pairwise and crossly distributed at intervals in a radiation shape round a circle direction, the rest circular electrodes are arranged at the outer side of the arc electrodes, each arc upper surface electrode is electrically connected with the circular electrodes through the center of the upper surface of the base plate and is electrically connected with each circular upper surface electrode positioned at the outer side of each arc upper surface electrode, each arc lower surface electrode is electrically connected with the circular electrodes through the center of the lower surface of the base plate and is electrically connected with each circular lower surface electrode positioned at the outer side of each arc lower surface electrode, and the lower surface of the base plate is provided with electrical medium material covering layers.

The invention relates to a novel adjustable liquid spraying ring, which is characterized in that: a liquid spraying channel capable of being closed and opened is respectively arranged between an inclined conical surface of a water curtain adjusting cap and an inclined conical surface on the liquid spraying ring; butterfly screw rods with adjustable tightness are arranged on the liquid spraying ring and the water curtain adjusting cap; the channel on the inclined conical surface of the water curtain adjusting cap is opened when the butterfly screw rod is unscrewed; the channel on the inclined conical surface of the water curtain adjusting cap is closed when the butterfly screw rod is screwed up; and a plurality of small liquid spraying holes are respectively formed on corresponding opposite inner side walls of the liquid spraying ring. The butterfly screw rods with adjustable tightness are arranged on the liquid spraying ring and a water mist adjusting sleeve, so that one or more small liquid spraying holes on the inner side wall of the liquid spraying ring can be closed or opened with the help of the screwing or unscrewing of the butterfly screw rods and the advancing and retreating movement of the water mist adjusting sleeve. The liquid used for quenching can be respectively sprayed from the channels on the liquid spraying ring and the small holes on the liquid spraying ring through a water inlet pipe along the direction of an arrow.

The invention provides a washable water supply rotary electric control valve which comprises an electric device, a filler ring, a V-shaped filler, a filler gland, a valve cover, bolts, nuts, a filler,a valve rod, a connector, a valve cage, a valve core, a valve body, a bottom cover, a filler ring, a sealing gasket, a cleaning joint and a sealing gasket. The valve body is provided with an inlet and an outlet in the horizontal direction, a cylindrical center is used for installing the valve seat which is equipped with a valve core with a closing fit, both the valve seat and the valve core are cylinders perpendicular to each other, the valve seat is a cage valve seat, and the valve core is also a cage valve core. The valve rod is fixed to an upper end surface of the cylindrical cage valve core which can rotate in the outside cylindrical cage valve seat, and the cage valve seat is slidingly matched with the cage valve core. The valve cover and the valve body are fixed by the bolts and thenuts, the center of the valve cover is provided with a sealing filler which coats the valve rod, and the sealing filler comprises the filler ring, the V-shaped filler and the filler gland from the top to the bottom. The upper end of the valve rod extends out of the sealing filler of the valve cover, and the upper part of the valve rod is an electric device.

The invention discloses a mounting structure making a wind scooper convenient to adjust used for a small fan. The structure comprises a supporting device, a fan shell body and an adjusting device, thefan shell body is fixedly installed at the top end of the front face of the supporting device, the adjusting device is arranged on the front face of the fan shell body, the supporting device is composed of supporting pieces and a fixed base, the supporting pieces are fixedly installed at the corners of the periphery of the bottom end of the front face of the supporting device, and the fan shell body is composed of a fixing frame, a fan axis, an outer rotating disc, an air guide plate, a fixing ring, a fan rotating disc, the fan blades, an inner rotating disc, an adapter piece, positioning plug pins, silencing pieces, fixing bolt holes and fixing bolts. According to the mounting structure making the wind scooper convenient to adjust used for the small fan, a driving motor is started, a wind scooper speed adjusting rotating piece arranged at the upper end of the right side of the front face of a fan speed adjusting button can carry out speed adjustment on the wind scooper fixedly connected to the periphery of the outer side of the outer rotating disc, the wind flow direction can be adjusted, the wind conveying efficiency is improved, and wind energy consumption is reduced.

The invention discloses a curved screen adjustable feeding system, and relates to the technical field of filtration treatment of wastewater. The curved screen adjustable feeding system comprises a pulp feeding pipe and a feeding device, wherein the width of a discharging hole of the feeding device is same as that of a screen plate of a curved screen; the discharging amount and the pressure of thedischarging hole are adjustable, and a water curtain of the discharging hole can be uniformly distributed on the screen plate of the curved screen, so that the utilization ratio of the screen plate ismaximized; meanwhile, pressure-type pulp feeding is realized, the screening capacity of equipment is obviously increased, and therefore, the screening efficiency of the equipment is effectively improved. In an operation process, according to the requirement of the screening capacity, the opening of the discharging hole is adjusted correspondingly, and the flow rate and pressure of pulp at the discharging hole can be adjusted; in addition, the opening of the discharging hole of the feeding device can be adjusted without stopping the equipment when in operation, so that the feeding system is wide in adjusting range, wide in application range and novel in structure, safe and reliable.

The constant temperature control system for hydrogenation reaction of 1,4-butene diol relates to the technical field of constant temperature system. The tube cooler is set in the reaction kettle, and the automatic control device includes a central processing module, a regulating valve and a temperature transmitter for detecting the temperature of the solution in the reaction kettle. The regulating valve and the temperature transmitter are respectively connected to the lines of the central processing module. The regulating valve is connected to the water inlet end of the coil cooler, and the temperature transmitter is connected to the reaction kettle. Compared with the prior art, the constant temperature control system of the present invention can not only sense the change of the reaction temperature of the solution in time, but also quickly adjust the flow rate of the cooling water to ensure that the solution can efficiently generate 1,4-butenediol within the temperature difference range of ±2°C , and the operation is simple and the cost is low.

The invention relates to the technical field of power machines, and discloses an energy-saving spring type hydraulic power machine which comprises a motor shell, a hydraulic rotating shaft is rotationally arranged in the motor shell, a brake mechanism is further arranged in the motor shell, and the brake mechanism is used for stopping rotation of the hydraulic rotating shaft. The braking mechanism is arranged on the motor shell, rotation stopping of the hydraulic rotating shaft can be accelerated through the braking mechanism, so that consumption of hydraulic oil is reduced, the braking mechanism is driven by the hydraulic oil in the hydraulic bin, the braking effect is achieved, an additional driving device does not need to be added, and the purpose of saving energy is achieved. And the phenomena of liquid overflow and backflow in the reversing valve body can be prevented through the adjusting mechanism, so that smooth flowing of hydraulic pressure in the rotating pipe is ensured.

The invention provides an energy-saving device for fuel. The device comprises a natural gas main pipe and a natural gas gun front valve set and connector. An inlet of the natural gas main pipe is provided with a front valve; an energy saver is arranged behind the front valve; a rear valve is arranged behind the energy saver; a branch runner pipe is arranged in front of the front valve of the inlet of the natural gas main pipe; the branch runner pipe is provided with a valve and the other end of the branch runner pipe is connected to the position behind the rear valve of the natural gas main pipe; a cooling gas pipe is installed in front of the natural gas gun front valve set and connector. The device can be used for adjusting the flow and pressure of natural gas conveniently and accurately, can increase the combustion efficiency of fuel, can guarantee operation stability and can effectively solve the problem of natural gas switching fluctuation caused by maintenance of the energy saver.

The present invention proposes one kind of pump including pump body, driving part and fluid medium conveying part. The pump features that the pump body consists of high pressure water tank, low pressure water tank, two main plates and two side plates; the double cavity bags in double rows constituting the fluid medium conveying part are installed on two sides of the high pressure water tank and the low pressure water tank and communicated with the high pressure water tank and the low pressure water tank via the high pressure valve and the low pressure valve separately inside the high pressure valve chamber and the low pressure valve chamber; and the bearings, main shaft, the cam and the pressure rack constituting the driving part are installed on two side plates.

The invention discloses a mixed-flow pump beneficial for rapidly adjusting the flow rate in the technical field of mixed-flow pumps. The mixed-flow pump comprises a frame. A mixed-flow pump body is installed in the frame. A vertical pipe is arranged on the top of the mixed-flow pump body. A pulling water adjusting device is installed on the inner wall of the vertical pipe. The top of the verticalpipe extends out of the frame and is provided with a transverse pipe. A fixed sleeve is installed on the inner wall of the transverse pipe. A flange is installed at the right end of the transverse pipe. A fixed block is arranged on the outer wall of the left end of the transverse pipe. A first threaded hole is formed in the fixed block. A lead screw is arranged in the first threaded hole. The right end of the lead screw penetrates to an inner cavity of the transverse pipe. The mixed-flow pump is novel in design and high in designability, a handle is rotated to control the relative position ofan adjusting gyroscope and the fixed sleeve so as to control the flow rate in the transverse pipe, the rotating lead screw drives a first bevel gear and a second bevel gear, a water adjusting plate and the pulling water adjusting device are controlled to control the flow rate in the vertical pipe, and by arranging the two linked adjusting devices, the mixed-flow pump is simple, rapid and beneficial for rapidly adjusting the flow rate.

The invention relates to an insulation layer thermal-shrinkage furnace for a capacitor. A capacitor coated with an insulation protection layer is conveyed to a thermal-shrinkage hearth by a conveying belt. A heater is used for heating the capacitor insulation layer by a temperature-control system. Wind return fences and wind outlet baffle plates are arranged in the furnace, wherein the wind return fences are hollow, and the sizes of the inlets of the wind return fences from a wind outlet to a wind inlet are gradually reduced; the wind outlet baffle plates are provided with draught openings, and the sizes of the outlets from the high-temperature section to the low-temperature section are gradually reduced. The wind return fences and the wind outlet baffle plates from the high-temperature section to the low-temperature section are arranged in a gradually reduced way, and then the flow direction and the flow quantity of the hot gas can be adjusted.

The invention relates to an intelligent positive-pressure protective head cover monitoring system based on Bluetooth transmission. The intelligent positive-pressure protective head cover monitoring system based on Bluetooth transmission comprises an air filtering device (3) and an air supply and return pipeline (4), wherein the air filtering device (3) is connected to the air supply and return pipeline (4). The intelligent positive-pressure protective head cover monitoring system based on Bluetooth transmission is characterized by further comprising a sensor unit (1) and a Bluetooth transmission module (2); the sensor unit (1) is connected to the Bluetooth transmission module (2); and the Bluetooth transmission module (2) is connected to the air filtering device (3). The intelligent positive-pressure protective head cover monitoring system has a simple structure, and is clever in design, convenient to use and wide in application.