4results about How to "Increase jet speed" patented technology

The application belongs to the technical field of electrical equipment, and particularly relates to a steaming and baking oven and an integrated cooker. The steaming and baking oven comprises an inner container, a spraying pipe and a heater. At least part of the spraying pipe is arranged in the inner container. At least part of the pipe body of the spraying pipe is provided with spraying holes. The heater is arranged in the spraying pipe. The application can automatically clean the inner wall of the inner container of the steaming and baking oven, saves manpower, guarantees the cleaning effect, and has good practicability.

This invention relates to the field of ammonia refining equipment technology, specifically a liquid ammonia vaporizer applied in an ammonia refining unit. It includes a preheating pipe, one end of which is connected to a liquid ammonia inlet, and the other end to a riser pipe. The riser pipe is connected to a distributor, and several injection holes are respectively opened on both sides of the bottom of the distributor. A crushing plate is fixedly installed on both sides of the riser pipe, and several crushing holes are opened on the surface of the crushing plate. In this structure, liquid ammonia first enters the preheating pipe through the liquid ammonia inlet, causing partial vaporization. The partially vaporized liquid ammonia enters the riser pipe, forming a gas-liquid two-phase flow, increasing the liquid ammonia flow rate for further vaporization. Driven by the gas phase, the liquid ammonia is ejected at high speed from the distributor onto the crushing plate. Under the action of the crushing holes, the liquid ammonia is broken into small droplets, which are further vaporized by the rising high-temperature crude ammonia gas, thus achieving a good liquid ammonia vaporization effect.

The invention relates to the technical field of building decoration line drawing, and discloses a line drawing robot for building decoration, which comprises a vehicle body, an ink box is fixedly connected in the vehicle body through a frame body, an infusion tube is fixedly connected to the bottom of the ink box, and a nozzle is fixedly connected to one end, away from the ink box, of the infusion tube. A mounting cavity, an expansion cavity and a spiral cavity are sequentially formed in the nozzle from top to bottom, a spiral groove is formed in the inner wall of the spiral cavity, a guide hole communicated with the outside is formed in the spiral groove in the inner wall of the spiral cavity, the nozzle is sleeved with a collecting box of an annular structure, and a drainage pipe is fixedly connected into the guide hole; the end, away from the guide hole, of the drainage tube penetrates through the top of the collection box and is slidably connected with the collection box. According to the line drawing robot for building decoration, the situation that residual ink drips from a nozzle, and line drawing continuity and overall precision are influenced and disturbed is avoided, and the clearness of line drawing breakpoints and the tidiness of a working face in a building construction site are effectively improved.

The utility model relates to the technical field of building construction, in particular to a multi-pipe jet grouting pile which comprises a drill rod assembly and a driving device, the drill rod assembly comprises a hollow drill rod capable of rotating independently and jet units, the outer wall of the drill rod assembly is hollowed out, the side wall of the hollow drill rod is fixedly connected with a plurality of layers of jet units, and the jet units are fixedly connected with the driving device. The spraying units comprise a plurality of high-pressure nozzles, the spraying units of the hollow drill rod are distributed in a staggered mode in the vertical direction, the driving device is connected with the drill rod assemblies, a mixing cavity is formed in the bottom end of the hollow drill rod, the top end of the mixing cavity is communicated with a plurality of pipelines, and the pipelines and the hollow drill rod are evenly distributed at the top end of the mixing cavity. Through the multiple high-pressure nozzles, the multiple injection units and the multiple drill rod assemblies, slurry enters all the hollow drill rods through pipelines and then passes through the injection units and the high-pressure nozzles, so that the slurry is evenly injected to the inner wall of a foundation pit, and the bearing capacity of the foundation is improved.