4results about How to "Realize spraying" patented technology

The utility model relates to the technical field of tunnel construction, in particular to a spraying maintenance device for tunnel construction, which comprises a moving trolley fixedly provided with a water tank on one side of the top, the water tank is connected and communicated with a spraying mechanism through a conveying pipe provided with a conveying pump, and the spraying mechanism comprises a hollow disc coaxially and rotatably assembled at the water outlet end of the conveying pipe. The hollow disc communicates with the conveying pipe, and the axial side wall of the hollow disc further communicates with a spray head. A supporting frame is arranged on the top face of the moving trolley below the hollow disc, a limiting frame provided with a limiting groove is fixedly arranged on the top face of the supporting frame, and a connecting block in sliding fit with the limiting groove is in transmission connection with the hollow disc. The swing type atomization spraying device can effectively achieve the swing type atomization spraying function, improves the curing effect on a concrete coating, and meanwhile can be used for cooling and dust removal operation in the tunnel construction process in summer.

The utility model provides a container valve, belongs to the technical field of pressure container equipment, and solves the problems that dangers are easy to occur when a pressure container is opened and closed, and economic loss is caused by difficulty in realizing remote closing of the pressure container equipment. The container valve comprises a valve body installed at an opening of a container, and part of the valve body is arranged in the container. The valve core is positioned at the central position in the valve body; the valve cover is positioned at the top of the valve body; the gas core cap is mounted in the center of the bottom of the valve cover; and the electric starting device is arranged at the central position of the top of the valve cover. According to the technical scheme, potential safety hazards generated when the pressure container is opened and closed in a manual operation mode can be eliminated, the pressure container is opened or closed in a remote control mode, storage and spraying of container media according to requirements are achieved, and economic losses are reduced.

This invention discloses a linked fire sprinkler head and its linked fire protection system, belonging to the field of fire protection technology. This product uses a pressure triggering device to contact the fire bead. When a sprinkler head in the linked pipeline connected to the main body is triggered by high temperature, the water pressure inside the linked pipeline will decrease momentarily. At this time, the pressure triggering device will push the fire bead to move towards the guide stop. When the fire bead contacts the guide stop, the inclined surface on the guide stop will cause the fire bead to tilt towards the inclined surface. After the fire bead tilts, the lateral force on the fire bead will increase, resulting in an irreversible rapid tilt and ejection from the main body. After the fire bead is ejected, the top plug loses its support. At this time, the fire water in the linked pipeline will push open the top plug to achieve spraying.

The present invention relates to the technical field of safe utilization of nuclear energy, and specifically discloses a pressure suppression and injection system for a marine reactor, wherein the cavity between the containment and the reactor compartment is divided into a pressure suppression water tank, an isolation empty compartment, an injection tank, a water supply tank, and a water injection tank; a water collection well and a reactor enclosure are located in the reactor compartment, and the reactor is located in the reactor enclosure; the injection tank is connected to the reactor through a connecting pipeline, the water supply tank is connected to the reactor through a connecting pipeline, and the water injection tank is connected to the reactor through a connecting pipeline; a suction port B extends into the water collection well, is connected to a nozzle on the top of the reactor compartment through a connecting pipeline, a branch is drawn from the connecting pipeline and extends into the pressure suppression water tank, and a suction port A is provided at the end of the branch; a suction port C extends into the water collection well, and is connected to a low-pressure injection pump through a connecting pipeline. The present invention combines the pressure suppression and injection systems, and all equipment and facilities are arranged in the containment, realizing the actual demand for miniaturization of equipment and facilities related to marine reactors.