5results about How to "Avoid removal" patented technology

This utility model discloses a scale removal device for plate heat exchangers, relating to the technical field of plate heat exchangers. It includes a fixed clamping plate, a fixed guide rod fixedly connected to the lower right side of the clamping plate, several plates slidably connected to the upper side of the guide rod, and fixed plates fixedly connected to the upper and lower right ends of the plates. Telescopic rods are fixedly connected to the inner sides of both fixed plates, and lifting plates are fixedly connected to the ends of the two telescopic rods. Springs are sleeved on the surfaces of the telescopic rods. Scrapers are fixedly connected to the middle positions of both sides of the lifting plate, and trapezoidal frames are fixedly connected to the upper and lower ends of both sides of the lifting plate. A fixed brush is fixedly connected to the outer end of the trapezoidal frame away from the lifting plate. This utility model, by incorporating a fixed plate, telescopic rods, lifting plate, springs, scrapers, a fixed pipe, a second solenoid valve, a fixed brush, and a pressurizing pipe, avoids disassembling the plates, effectively reducing workload, and simultaneously effectively removing deposited scale.

The utility model discloses an evaporator for amino acid production belongs to amino acid production field, including evaporator casing, install first evaporating unit - third evaporating unit in evaporating inner chamber, be provided with first cavity between first evaporating unit and second evaporating unit, be provided with second cavity between second evaporating unit and third evaporating unit, form third cavity between the bottom of third evaporating unit and the bottom inner wall of evaporator casing, install first - third liquid spray unit in evaporating inner chamber, be provided with first baffle in first cavity, open first hole in the central position of first baffle, install first inner tube in first hole, be provided with second baffle in second cavity, open second hole in the central position of second baffle, install second inner tube in second hole. The utility model can reasonably improve energy efficiency and avoid broken amino acid internal molecular structure, and prevent amino acid acidic side chain in removing acid and be removed.

The application discloses a marine propeller winding removal device, which comprises a protection assembly and a cutting component. The protection assembly is arranged on the periphery of the propeller, a hollow cylinder at one end of the protection assembly is sleeved on the propeller shaft, the protection assembly is driven by a driving mechanism on the ship body to rotate around the propeller shaft, a plurality of protection net sleeve components are arranged along the propeller shaft, the protection net sleeve components are circumferentially surrounded to form a protection, grooves and displacement holes are circumferentially arranged on the protection net sleeve components, the cutting component is fixed to the ship body and located above the protection assembly, the cutting component comprises a longitudinal cutting knife, a transverse cutting knife and a displacement rod, and the longitudinal cutting knife, the transverse cutting knife and the displacement rod are connected through respective up-down and left-right driving mechanisms, the blade of the longitudinal cutting knife is arranged in the axial direction of the protection net sleeve component, the blade of the transverse cutting knife is arranged in the circumferential direction of the protection net sleeve component, and the displacement rod corresponds to the displacement hole on the protection net sleeve component. The winding can be completely removed, and the propeller is not damaged.

A depth-fixing bur and dental grinding machine adapted to tooth surface angles includes a bur handle, one end of which is connected to a drive device, and the other end of which is equipped with a ball drill. The bur handle also has at least two equally spaced disc drills along its axial direction, with the radial dimensions of the disc drills being larger than that of the ball drill. The ball drill is used for depth-fixing at the cervical region of the tooth, while the disc drills are used for depth-fixing at the body and incisal edge of the tooth. The ball drill and disc drills can perform depth-fixing at different locations of the tooth structure. During veneer depth-fixing, segmented grinding avoids unnecessary tooth tissue removal caused by grinding the cervical region and body, or the body and incisal edge. Furthermore, depth-fixing at the cervical region is performed by the ball drill, minimizing the risk of accidental injury to the gingiva near the cervical region.

This invention discloses a method for fabricating and monitoring a battery monitoring chip for a boron diffusion process. The fabrication method includes: forming a boron diffusion layer and a borosilicate glass layer stacked outside the boron diffusion layer on the main surface of a substrate through a boron diffusion process; forming a diffusion barrier layer outside the borosilicate glass layer; doping the diffusion barrier layer with N-type dopant atoms to form a doped layer containing N-type dopant atoms; the N-type dopant atoms then enter the borosilicate glass layer, transforming the borosilicate glass layer into a first composite doped silicon glass layer containing boron atoms and N-type dopant atoms; and removing the doped layer and the first composite doped silicon glass layer. This fabrication method improves the consistency between the boron diffusion layer in the battery monitoring chip and the boron diffusion layer of the solar cell, thereby improving the accuracy and reliability of monitoring the boron diffusion process.