Novel long-range fire fighting monitor

Abstract

The invention discloses a novel long-range fire fighting monitor including: a water inlet pipe, a static joint pipe, a movable joint pipe and a water outlet pipe. A water outlet end of the water inlet pipe is detachably connected to a water inlet end of the static joint pipe through a flange B. The water outlet end of the static joint pipe is connected to the water inlet of the movable joint pipe. The water outlet end of the movable joint pipe is detachably connected to the water outlet pipe through a flange C. The water inlet pipe is in the shape of a circular arc in certain angle, wherein a turbine worm mechanism is arranged on the outer side of the water inlet pipe, so that the water inlet pipe can be rotated horizontally by rotating a worm handle. A circular-arc-shaped flow guide sheet being concentric with the water inlet pipe is disposed in the water inlet pipe, wherein two sides of the flow guide sheet are welded to the side wall of the water inlet pipe. The static joint pipe is connected to the movable joint pipe in manner of spherical connection with one sphere center, wherein the inner surface spherical diameter of the static joint pipe is larger than the outer spherical diameter of the movable joint pipe. The fire fighting monitor is low in internal loss, has a compact structure, is not liable to tip, has a smooth outlet flow status and has long shoot range.

Description

technical field [0001] The invention relates to the technical field of fire-fighting water cannons, in particular to a novel long-range fire-fighting water cannon. Background technique [0002] Fire water cannon has become the most common fire extinguishing equipment because of its large flow and long range. In addition, it also plays a deterrent role in territorial waters security, expulsion of illegal maritime industries and pirates, etc. Water cannons replace arms, which is environmentally friendly and Avoid local wars. In order to achieve rotation in the horizontal and vertical directions, the fire water monitor usually contains at least three 90° elbow structures, and the existence of the elbow will not only generate secondary flow, but also form an obvious gap in the outlet pipe section of the water monitor. Rotating around the flow, even if there is a flow stabilizer for rectification to obtain a uniform nozzle flow, the energy loss is quite large, the axial speed is...

AI Technical Summary

Problems solved by technology

In order to achieve rotation in the horizontal and vertical directions, the fire water monitor usually contains at least three 90° elbow structures, and the existence of the elbow will not only generate secondary flow, but also form an obvious gap in the outlet pipe section of the water monitor. Rotating around the flow, even if there is a flow stabilizer for rectification to obtain a uniform nozzle flow, the energy loss is quite large, the axial speed is small, and the range often cannot achieve the desired effect. The structure of ordinary fire water monitors has a high center of gravity, which is easy to Overturning, causing vibration, seriously affecting the service life of the water monitor

The steering mode of the fire water monitor mainly adopts three types: the handle drives the worm gear mechanism, the motor drives the worm gear mechanism, and the hydraulically drives the worm gear mechanism. The fire water monitor with the handle drives the worm gear mechanism is difficult to control the pitch and rotation, which affects the efficiency of firefighting operations; The motor-driven worm gear mechanism will cause the water cannon to strike due to water entering the motor;

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