9results about How to "Achieve directional flow" patented technology

The utility model discloses a sewage recovery device for environmental engineering, and relates to the technical field of environmental engineering. The device comprises a recycling box, one side of the top of the recycling box is fixedly connected with an air pump, one side of the air pump is fixedly connected with an air pipe, one end of the air pipe is clamped with a first inflation connector, one side of the first inflation connector is communicated with an inflation wall, and the bottom of the inflation wall is fixedly connected with a first bottom film; the bottom of the first bottom film is fixedly connected with a lifting block, the top of the first bottom film is fixedly connected with an inflation bag, the recycling box, the air pump and the inflation wall are arranged, the equipment can be conveniently assembled and disassembled, and the equipment is made to meet the car washing requirements of different places; by means of the design of the height difference and the water suction pump, car washing water can be efficiently collected and recycled, waste of water resources is avoided, and pollution to the environment is reduced.

The utility model discloses a mistake proofing device for detecting empty glue of a glue dispensing system in the field of glue dispensing systems, which comprises a screw rod glue dispensing device, the screw rod glue dispensing device is communicated with a glue storage device through a glue injection pipeline, at least one mistake proofing device is arranged on the glue injection pipeline, and the screw rod glue dispensing device is communicated with the glue storage device. The mistake proofing device comprises a small glue barrel, a three-way connector, an air inlet pipe and an annular metal inductive sensor, glue, a piston and a small metal ball are sequentially arranged in the small glue barrel from bottom to top, the piston can move up and down along the inner wall of the small glue barrel, and the outer side of the bottom of the small glue barrel is sleeved with the annular metal inductive sensor. The three-way connector comprises a first inlet, a second inlet and an outlet, the first inlet is communicated with the glue injection pipeline, the second inlet is communicated with the bottom of the small glue barrel, the outlet is communicated with the screw dispensing device, the pressure in the glue storage device is P1, the air inlet pipe is communicated with the top of the small glue barrel to apply air pressure P2 to the piston, and P2 is smaller than P1. The device can give an early warning in advance to prevent glue from being empty.

This invention discloses a composite preform for aluminum-steel induction brazing, a welding method, and an anode guide rod assembly. The composite preform includes an aluminum base skeleton and annular brazing filler metal on its upper and lower surfaces. The aluminum base skeleton is disc-shaped with through holes, through which the annular brazing filler metal is connected as a whole. The annular brazing filler metal includes an inner ring wetting zone, a middle ring control zone, and an outer ring compensation zone, with the solid-liquid phase temperature of the brazing filler metal increasing sequentially in these three zones. During welding, a two-stage induction heating process is employed: first, the inner ring brazing filler metal is fully softened and spread in the central region; then, the outer ring brazing filler metal is completely melted and fed to the joint edge, while a controlled Fe-Al-Si reaction layer is formed at the steel-side interface through the middle ring control zone. This invention transforms the inherent radial temperature difference of induction heating into a step-by-step melting process window, simultaneously solving the problems of insufficient central spreading, edge brazing filler metal loss, and uncontrolled brittle phase at the interface. It is suitable for large-section connections between anode steel claws and aluminum guide rods in the electrolytic aluminum industry.

The utility model discloses a kind of liquid metering devices, including support frame, measuring box, sampling mechanism and storage mechanism, wherein, measuring box is set on support frame, liquid inlet pipe is equipped on measuring box, sampling mechanism is set on measuring box, storage mechanism includes connecting assembly, storage box, discharge assembly, exhaust component and first drive mechanism, wherein, storage box is set on measuring box by connecting assembly, and be located below support frame, discharge assembly is set on storage box, exhaust component is set on storage box, first drive mechanism is set on storage box. Therefore, improve piston movement stability and precision, maintain piston air tightness, cooperate with the guidance flow of multiple one-way valve, reduce liquid volume storage, prestore after liquid sampling and discharge, to improve the measurement precision of liquid.

The present application relates to the technical field of regulating valve, in particular to an intelligent electric regulating valve, comprising a valve body, a flow limiting component and a regulating component. In the opening process of the valve, the regulating component is self-adaptively adjusted according to the medium pressure, so that the flow limiting component opens the first flow port later than the second flow port. In the closing process of the valve, the regulating component is self-adaptively adjusted according to the medium pressure, so that the flow limiting component closes the first flow port earlier than the second flow port. Therefore, through the self-adaptive linkage of the regulating component and the medium pressure, the opening and closing timing of the first flow port and the second flow port is accurately controlled, ensuring that the second flow port is closed, the first flow port must be in the closed state, forming a double sealing guarantee, and improving the sealing reliability.

The present invention relates to the field of aircraft environmental control technology, and in particular, to an aircraft air mixer, comprising a fan assembly, an ejection assembly, a mixing assembly, and a flow distribution assembly. The ejection assembly comprises an air duct unit and a main pipe unit. The main pipe unit comprises a first main pipe, a second main pipe, and a third main pipe. The second main pipe comprises a first tube body and a first hole portion; the third main pipe comprises a second tube body and a third hole portion. The first hole portion is arranged at intervals on a side of the first tube body away from the fan assembly. The second tube body is annular and fixedly connected to the air duct unit. The second tube body is connected to the interior of the air duct unit through the third hole portion. The third hole portion is arranged at intervals on a side of the second tube body away from the fan assembly. The air duct unit comprises a first area and a second area. In this way, the problem of how to eject and quickly mix gas in an aircraft air mixer is solved.

The present invention discloses a disinfection and sterilization cabin, including a fixed cabin and an expansion cabin; the fixed cabin includes a decontamination area and a first clean room; the expansion cabin includes a buffer zone and a second clean room; the first clean room and the second clean room constitute a clean area; when the disinfection and sterilization cabin is unfolded, the decontamination area, the buffer zone and the clean area are physically isolated; a negative pressure device is provided in the decontamination area, and a positive pressure device is provided in the clean area; the disinfection and sterilization cabin is provided with a first hot air device and a second hot air device, which are respectively used to provide hot air to the decontamination area and the clean area, and are designed for independent hot air supply and return. A disinfection and sterilization cabin designed by the present invention follows the standard requirements of the National Health and Family Planning Commission, realizes the physical isolation and partitioning of the decontamination area, the clean area and the buffer zone in a single expansion cabin, realizes the isolation function based on the pressure difference of the partition in the cabin, realizes the directional flow of airflow, realizes the directional flow of materials and personnel, and minimizes the possibility of cross infection during the disinfection and sterilization operation.

The present invention belongs to the field of grinding devices, and specifically discloses a continuous grinding device with a collection function, including a press-type pre-tightening grinding mechanism, a blast-type multi-media collection mechanism, and an automatic constant-pressure water supply mechanism. The present invention creatively proposes an automatic constant-pressure water supply mechanism, which manually and freely controls the water supply by pressing, and forms a positive pressure chamber with constant pressure in the water storage tank by extracting the negative pressure of the powder, and completes the supply of liquid by this positive pressure. The whole process has an ingenious structure, simple operation, and outstanding effect, and excellently solves the problem of excessive powder dust and difficulty in collection in the grinding process.

The application belongs to the technical field of micro-fluidic chip, and particularly relates to an integrated micro-fluidic card box; the integrated micro-fluidic card box comprises a first solution storage part, a suction accessory, a second solution storage part and a reaction part; the bottom surface of the first solution storage part is rotationally connected with the top surface of the suction accessory, the bottom surface of the suction accessory is rotationally connected with the top surface of the second solution storage part, and the bottom surface of the second solution storage part is abutted with the top surface of the reaction part; a second channel is arranged on the first solution storage part in a penetrating mode, a second flow channel is arranged on the suction accessory, and a second through hole is arranged at one end of the second flow channel in a penetrating mode; when a single sample nucleic acid is detected, a second flow channel and a second channel formed by an exhaust passage are used for feeding a lysis solution, feeding a cleaning solution, feeding an eluent and sample loading, only one driving pump is needed to control the solution flow process; the driving pump and the external pipeline only pass gas but not liquid, so that solution residues when passing through the pump and the pipeline are avoided, and pollution is avoided; a plurality of micro-fluidic chips are connected with the driving pump and the controller, so that multiple samples can be simultaneously detected, and the detection efficiency is improved.