21results about How to "Large opening" patented technology

The application discloses a wind blade adjustable non-powered air cap and a flue gas waste heat recovery system constructed by the same. The non-powered air cap comprises an air cap body, a lifting mechanism and a pressure sensor. The air cap body comprises a cap top, a bottom ring and a group of wind blades closely arranged between the cap top and the bottom ring. The pressure sensor is arranged on the inner wall of the cap top. The upper end of the wind blade is located above the cap top, and the end slightly exceeds the outer edge of the cap top. The number of the lifting mechanism corresponds to the number of the wind blades, and the lifting mechanism is annularly distributed on the cap top and comprises a lifting plate. The two ends of the lifting plate are respectively provided with an electric push rod and a lifting shaft. The electric push rod is fixed to the inner wall of the cap top, and the lifting shaft is connected with the wind blade. The electric push rod and the pressure sensor are electrically connected with a control box. When the pressure sensor detects that the pressure in the air cap is too large, the lifting mechanism works, the height of the wind blade is lifted, the opening of the wind blade is increased, and thus the exhaust capacity of the air cap is increased and the exhaust efficiency is improved.

The present application relates to a kind of heat pump steam system control method and device, controller.The heat pump steam system control method described in the present application includes the following steps: obtaining steam demand quantity increases adjustment instruction;Determine whether heat pump steam system is in flash mode or hot water mode;If it is flash mode, steam outlet is opened, hot water outlet is closed, electric heating element is closed, the output power of heat pump system is increased, the frequency of pressurizing pump is increased, the opening of water supply valve is increased, and the opening of steam outlet valve is increased;If the current steam production does not meet the set steam demand, and meet the first preset condition, then control system enters hot water mode, steam outlet is closed, hot water outlet is opened, and electric heating element is started.The heat pump steam system control method described in the present application has the advantages of high efficiency in steam generation and low energy consumption of the system.

This invention relates to the field of prefabricated building technology and provides a concealed door system, comprising: a door frame mounted on a wall, with a wall panel mounted on the wall; a door body; a first frame covering a first side of the door body near the door hinge, the first frame having a first inclined plate that slopes towards the central axis of the door body and transitions to the outer surface of the door body, the angle between the first inclined plate and the outer surface of the door body being an obtuse angle; and a first edge trim covering the edge of the wall panel near the first frame, the first edge trim having a second inclined plate corresponding to the position of the first inclined plate, the second inclined plate being parallel to the first inclined plate. The inclined second plate provides more rotation space for the first frame, allowing for a smaller gap between the first edge trim and the first frame, or even eliminating the need for a gap altogether, enabling the concealed door system to blend more seamlessly into the entire wall, improving the overall integrity and aesthetics of the concealed door system.

The utility model provides a kind of calcium hydroxide digester water inlet control equipment, it is related to digester technical field, and it includes: rack, liquid inlet pipe, the top end of rack is fixedly connected with in liquid inlet pipe;Water tank, the surface of rack is opened in the side close to liquid inlet pipe of water tank;Spray head, the lower surface of water tank is fixedly connected with spray head;Flow control mechanism, the inside of liquid inlet pipe is equipped with flow control mechanism;Baffle, the two sides of the surface of baffle rotationally connected in the inside side wall of liquid inlet pipe;Electromagnet, the inside of baffle is fixedly connected with electromagnet, by using trigger mechanism in exhaust pipe real-time monitoring gas quantity generated by reaction, indirectly judge calcium hydroxide feeding quantity and reaction intensity, when gas quantity increases, pressure switch triggers electromagnet action, makes liquid inlet pipe baffle opening increase, increases water intake quantity;Conversely, reduce water intake quantity, to reach "water supply according to demand", avoid waste or insufficient effect.

The utility model discloses an elevator car roof safety window, including window frame, window frame: its left and right inner side wall all is equipped with track, and the sliding connection of two tracks has two or more than two window boards no.

The present application relates to the technical field of metal casting, and particularly discloses a core making machine, which is provided with at least two regulating systems in the circumferential direction of the side wall of a core box. During sand shooting, the exhaust adjusting branch of the regulating system controls the exhaust amount during sand shooting to avoid excessive pressure drop loss, and the negative pressure adjusting branch adjusts the vacuum degree in the cavity to increase the pressure difference between the region and other regions, improve the flowability of the sand, and facilitate compacting of the sand, thereby achieving good core making effect. During solidification and blowing, the blowing mechanism can blow triethylamine gas into the cavity through the top and side of the core box, achieve the best solidification and air intake combination, increase the air intake area, shorten the solidification time, improve the solidification efficiency, and increase the opening of the exhaust adjusting branch to increase the exhaust amount of the corresponding region and ensure smooth air intake. The present application also provides a sand shooting and solidification process control method applied to the core making machine.

The utility model relates to the field of beverage container, especially a bottle cap subassembly and bottled beverage with storage structure. Including mounting seat, lid and storage bin, the mounting cavity is equipped in the mounting seat, the storage bin is located in the mounting cavity, the accommodating cavity is equipped in the storage bin, the lower extreme of storage bin is the sealing element, the lower extreme of mounting cavity still is equipped with the puncture part opposite sealing element, still be equipped with a plurality of hollow parts that penetrate to the mounting seat outer periphery on the peripheral wall of mounting cavity, the lid is connected with the storage bin and installs on the mounting seat upside, can make the storage bin downward motion and make the puncture part puncture sealing element through rotating the lid. Its improved the structure of puncture part, guarantees the beverage agent of storage bin can release, can be applicable to the use of solid beverage agent.

The utility model relates to the technical field of precision mould cooling, and disclose a kind of precision mould cooling device, including support block, firm crosspiece, lower mould and upper mould, the inside of support block is equipped with the installation cavity for storing coolant, sliding vertical pole is sealingly slidably installed in installation cavity, the top of sliding vertical pole passes through lower mould and is connected at the bottom of upper mould, water inlet pipe is fixedly installed on the left and right ends above the rear side inner wall of installation cavity respectively, the export end of two water inlet pipes is fixedly installed with micro circulating pump respectively, the other end of two micro circulating pumps is fixedly installed with electromagnetic flow regulating valve respectively, water outlet pipe is fixedly installed on the left and right ends below the rear side inner wall of installation cavity respectively, the export end of two water outlet pipes is fixedly installed with micro radiator respectively, extruding plate is fixedly installed on the bottom of sliding vertical pole, two water inlet pipes are all located above extruding plate, two water outlet pipes are all located below extruding plate.The utility model improves cooling effect.

This invention relates to the field of refrigeration equipment technology, specifically to a water-cooled screw-type flooded chiller, comprising a chiller body and an evaporator. The evaporator is mounted on the chiller body, with an inlet pipe at its bottom and an outlet pipe at its top connected to a screw compressor on the chiller body. This invention uses a float plate and guide assembly to vertically raise and lower the tube bundle according to the refrigerant level: when the system load decreases and the liquid level drops, the tube bundle moves downwards synchronously, always remaining submerged in liquid refrigerant, avoiding the loss of heat exchange capacity due to the upper part of the traditional fixed tube bundle being exposed to gaseous refrigerant; when the load increases and the liquid level rises, the tube bundle moves upwards synchronously to a shallow liquid level area near the liquid surface, where the static pressure is lower, effectively overcoming the defect of traditional fixed tube bundles at the bottom where excessive static pressure inhibits refrigerant boiling. This ensures that the tube bundle is in the optimal heat exchange position under different loads, thereby significantly improving the overall heat exchange efficiency and the chiller's comprehensive energy efficiency ratio.

This application relates to the technical field of intelligent airflow control, and in particular to a dynamic optimization method for airflow organization in a clean operating room. Applied to an operating room containing an inner ring main air supply array, an outer ring auxiliary air supply array, and return air louvers, the method includes: when at least a portion of the movement vector points towards the operating table, and the corresponding movement speed is greater than a preset speed threshold and the area shrinkage rate is greater than a preset shrinkage rate threshold, suspending personnel position tracking air supply, marking the low-pressure wake zone, and executing the following: reducing the deflection angle of the guide vanes of the inner ring main air supply array to zero, simultaneously reducing the air supply volume of the outer ring auxiliary air supply array; controlling the outer ring auxiliary air supply array corresponding to the low-pressure wake zone to intercept air supply; increasing the opening of the return air louvers at the wall where each intercepted air supply falls, and decreasing the opening of the return air louvers at other walls. This application proactively abandons tracking through a three-level coordination mechanism, intervening in the flow field phase change conflict caused by transient convergence and dispersion to maintain the cleanliness of the core area.

The invention belongs to the technical field of dental prosthesis manufacturing, and particularly relates to a denture processing-based rapid glazing device which comprises a first rack and a second rack, two supporting plates are fixedly arranged at the upper end of the second rack, two conveying belts are arranged between the two supporting plates in a transmission manner, and a plurality of supporting plates can be sequentially placed on the two conveying belts at intervals; a distributor is arranged above the position between the two supporting plates in a sliding mode, a plurality of spraying pipes are arranged at the bottom of the distributor, an elastic net pipe is arranged outside each spraying pipe, each elastic net pipe is of a hollow structure, the bottom of each elastic net pipe is open, and a coating film is arranged in each elastic net pipe; when the false tooth is glazed, the material spraying pipe sprays the glaze on the surface of the false tooth after atomizing the glaze and sprays part of the glaze on the coating film, and when the coating film is glazed, the coating film moves up and down and uniformly coats the glaze on the surface of the false tooth. The problems that according to existing glazing equipment, the uniformity of a false tooth glaze layer is poor, the conveying stability of a supporting plate is poor, and glaze residues are difficult to remove are solved.

This utility model discloses an overheat protection device for an internal combustion generator set, relating to the field of generator set protection technology. The utility model includes a generator set body, a return pipe on the generator set body, a valve body fixedly installed on the return pipe, and a fixing seat fixedly connected to the top of the return pipe near the valve body. When performing overheat protection on the internal combustion generator set, a heat pipe is used to conduct heat to the coolant in the return pipe. During normal operation, the coolant temperature fluctuates within a certain range, and under the influence of the coolant's heat conduction, a piston moves, simultaneously adjusting the opening of the return pipe valve. Increasing the valve opening increases the flow rate and enhances heat dissipation; decreasing the valve opening decreases the flow rate and maintains the temperature. When the coolant temperature rises sharply, causing two metal contacts to come into contact, an alarm signal is triggered. This physical change achieves a change in the alarm signal, preventing signal interference and failure.

The utility model discloses an ecological flow adjusting device of a pumped storage power station. The ecological flow adjusting device comprises a conveying pipeline and an anti-blocking mechanism. The anti-blocking mechanism comprises a mounting seat, a branch pipe, a filter screen, a water suction pump, a water suction pipe, a water drainage pipe, a differential pressure sensor and an electromagnetic valve; the mounting seat is fixedly connected in the conveying pipeline, the filter screen is detachably connected with the mounting seat, and the conveying pipeline is divided into a section close to the upstream and a section close to the downstream by the filter screen; the branch pipe is communicated with the downstream section of the conveying pipeline; the water suction pump is fixed to the outer wall face of the conveying pipeline, and a water inlet and a water outlet of the water suction pump are connected with one end of a water suction pipe and one end of a water drainage pipe respectively; the other end of the water pumping pipe is communicated with the upstream section of the conveying pipeline; the other end of the water draining pipe is communicated with the downstream section of the conveying pipeline; the electromagnetic valves are installed on the branch pipe, the water pumping pipe and the water drainage pipe respectively. Sediment is flushed out of the branch pipe through the anti-blocking mechanism, cleaning of the filter screen is completed, and the situation that water flow conveying is affected due to sediment blocking is avoided.

This invention provides an integrated airflow-type high-intensity sound source, relating to the field of sound wave transducer equipment. It includes a motor, with one end of the motor shaft connected to an air pump and the other end connected to a sound source rotor via a reducer. The sound source rotor is rotatably mounted within a sound source stator, which has a sound source port. The sound source rotor has a hollow cavity, and the air pump outlet is connected to the cavity of the sound source rotor via an air guide pipe. Multiple frequency modulation ports are located on the outer wall of the sound source rotor, intermittently aligned with the sound source port. The sound source port is connected to an emitter with a horn-shaped nozzle. When the frequency modulation port is aligned with the sound source port, sound is emitted. Through the deep coupling design of the air compression mechanism and the acoustic modulation structure, the performance bottleneck of traditional high-intensity sound wave generators is overcome, demonstrating irreplaceable technical advantages in the field of acoustic applications. In the field of meteorological intervention, it can successfully output low-frequency sound waves of 30-100Hz, enabling meteorological intervention applications such as artificial rain enhancement and fog dispersal.

The application discloses a nitrogen adjusting valve control method, device and system for a blast furnace top gear box, and relates to the technical field of blast furnace ironmaking.If the target parameter is higher than the first preset threshold value, it represents that the air pressure in the gear box far exceeds the requirement of preventing dust and coal gas in the blast furnace from entering the gear box, the opening of the adjusting valve is reduced until the target parameter is lower than the first preset threshold value, waste caused by excessive nitrogen can be avoided, and over-protection of pressure can be avoided.If the target parameter is lower than the second preset threshold value, it represents that the air pressure in the gear box cannot meet the requirement of preventing dust and coal gas in the blast furnace from entering the gear box, the opening of the adjusting valve is increased until the target parameter is higher than the second preset threshold value, the sealing property of the gear box can be improved, dust and coal gas in the blast furnace can be prevented from entering the gear box, and under-protection of pressure can be avoided.

The present disclosure provides an aircraft narrow area locking fastening tool and an aircraft maintenance device; the aircraft narrow area locking fastening tool comprises a clamping piece, a pressing piece, a closing spring and a wedge; the clamping piece and the pressing piece are oppositely arranged; a self-adapting clamping groove is formed in the first end of the clamping piece; the flexible end of the pressing piece is connected to the clamping piece, and the flexible end of the pressing piece is arranged away from the self-adapting clamping groove; the rigid end of the pressing piece is opposite to the self-adapting clamping groove; the wedge and the closing spring are located between the clamping piece and the pressing piece; the closing spring is connected to the clamping piece and the pressing piece respectively, so that the clamping piece and the pressing piece are closed; the wedge is slidably abutted to the clamping piece and the pressing piece respectively; the wedge has a wedge inclined surface; when the opening of the aircraft narrow area locking fastening tool needs to be adjusted, the wedge can be conveniently moved to overcome the elastic force, so that the clamping piece and the pressing piece are guided to open or close through the wedge inclined surface of the wedge.

This invention discloses a precursor pipeline and a thin film deposition system, relating to the field of semiconductor equipment. The precursor pipeline includes a tube body, a flow regulating device, and a needle valve. The tube body has an input end for connecting to a precursor source and an output end for connecting to a reaction chamber. Both the flow regulating device and the needle valve are disposed on the tube body, with the flow regulating device positioned between the input end and the needle valve. The precursor pipeline provided by this invention reduces the difficulty of needle valve adjustment and the risk of pressure deviation.

This application relates to the field of high-pressure washer accessories, and more particularly to a pressure speed control valve, including a valve body, a valve stem, and an elastic component. The valve body includes a mating end with a water inlet and a flow channel. In the mating state, the water inlet communicates with the high-pressure zone of the pump body; the flow channel communicates with the water inlet; the valve body has a slide rail coaxially arranged with the mating end; the core rod includes a rod body and a piston coaxially arranged, and under the separation of the piston, the slide rail forms a closed pressurization zone communicating with the flow channel on the side of the piston axially away from the mating end; the elastic component is used to provide elastic force, so that the core rod has a tendency to move axially away from the mating end. In this application, during operation, the tension of the throttle cable on the valve stem, or the entire speed control valve, is basically on the axis of the valve body, which is beneficial to the stability of the connection between the mating end and the pump body.

The application is suitable for the technical field of combustion devices, and provides an industrial gas pulse combustion device with self-adaptive adjustment, which comprises a premixing unit, a combustion unit and a resonance exhaust unit, the premixing unit is composed of a mixing chamber, an air intake module and a gas intake module, the air intake module and the gas intake module are both composed of an induction drive control mechanism and a flow cutoff valve, a fixing seat is fixed between the air intake module and the gas intake module, and an adjusting mechanism is installed on the fixing seat; the adjusting mechanism, the induction drive control mechanism and the flow cutoff valve constitute a pure mechanical linkage adjusting system, according to the air intake pressure fluctuation, the adjusting mechanism cooperates with the induction drive control mechanism and the flow cutoff valve to self-adaptively adjust the air-fuel ratio of the gas intake module and the air intake module, so that the air-fuel ratio is quickly restored to the theoretical air-fuel ratio, the stability of the air and gas ratio in the mixing chamber is ensured, the gas molecules and oxygen molecules are fully contacted and reacted, and the emission of pollutants such as CO and NOx is reduced from the source.

The application relates to a material tower taper detection technical field, in particular to a material tower core mold taper part radius real-time determination structure and a winding forming system and method, a wire wheel is arranged on a pull rod, the top end of the pull rod is fixedly connected with an outer rod, the inner side of the outer rod is slidably connected with an inner rod, the inner rod can abut against the surface of the taper part upwards, the bottom end of the inner rod is a piston, a second spring is fixedly connected between the piston and the inner side of the outer rod, a potentiometer is fixedly connected on one side of the inner rod, a fixed block is fixedly connected on the inner side of the top end of the outer rod, the fixed block slides on the potentiometer, the real-time radius of the winding position of the taper part is obtained by obtaining the position of the fixed block on the potentiometer, the pull rod moves rightwards under the driving of a lead screw, the wire wheel moves rightwards synchronously, winding movement is realized, the outer rod bends to one side, so that the middle surface of the inner rod and the wire wheel is in the same plane, and the real-time radius of the winding position of the taper part is obtained by obtaining the position of the fixed block on the potentiometer.