Spraying nozzle for removing fish scale through water jet flow

Abstract

The invention discloses a spraying nozzle for removing fish scale through water jet flow. The spraying nozzle comprises: a water inlet chamber, an acceleration section channel and a water outlet, wherein the inlet water chamber, the acceleration section channel and the water outlet are connected together, the central axes of the inlet water chamber, the acceleration section channel and the water outlet are on the same straight line, the water inlet chamber and the acceleration section channel are smoothly connected by a round corner, and the horizontal cross-section of the water outlet is an arc segment notch. The spraying nozzle can achieve the rapid acceleration of the water flow, and can spray the fan-shaped jet flow with good compactness at the outlet, such that the striking range of the fish body is effectively increased; the horizontal cross-section at the water outlet position is the arc segment notch, such that the uniform jet flow with the gradually increasing velocity gradient from the middle to both sides can be sprayed when the inlet pressure is constant, thereby the spraying nozzle is suitable for the fish body structure of the unilateral fish body with the higher middle portion and the both lower sides, makes the striking force of the jet flow uniformly distributed on the fish body, and greatly reduces the damage to the surface of the fish body; and the round corner is arranged between the water inlet chamber and the acceleration section channel, such that the local water head loss can be minimized so as to improve the efficiency and reduce the cost.

Description

technical field [0001] The invention relates to a nozzle for removing fish scales by water jet. Background technique [0002] In the process of fish product processing or before cooking, complex pretreatment is required. First, fish scales must be removed. In actual production, most of the pretreatment procedures are manually operated. This production method has low efficiency and high product quality. The quality standard is not easy to control. In view of this problem, it is proposed to use water jets to descale; because the fish body on one side is high in the middle and low on both sides, the jets ejected from ordinary nozzles cannot touch the fish. It provides a relatively uniform striking force, so the scale removal rate is not high, and the sensory level is also greatly affected; in addition, due to the differences in the shape and size of various fish bodies, the water sprayed by ordinary nozzles The relationship between jet range and striking force is difficult to ...

AI Technical Summary

Problems solved by technology

[0002] In the process of fish product processing or before cooking, complex pretreatment is required. First, fish scales must be removed. In actual production, most of the pretreatment procedures are manually operated. This production method has low efficiency and high product quality. The quality standard is not easy to control. In view of this problem, it is proposed to use water jets to descale; because the fish body on one side is high in the middle and low on both sides, the jets ejected from ordinary nozzles cannot touch the fish. It provides a relatively uniform striking force, so the scale removal rate is not high, and the sensory level is also greatly affected; in addition, due to the differences in the shape and size of various fish bodies, the water sprayed by ordinary nozzles The relationship between jet range and striking force is difficult to control, and it is difficult to meet the descaling work of fish of different types and sizes, so the processing efficiency will also be reduced; with the continuous development of machinery manufacturing industry, the social requirements for productivity are also increasing. With continuous improvement, water jet descaling technology will gradually replace the original treatment process, especially in the design and optimization of nozzles, which is the core link of this technology

Images