Siphoning type fish sucking pump and working method thereof

Abstract

The invention relates to a siphoning type fish sucking pump which comprises a fish storage box body, a water injection pipe (2), a sucking pipe (3) and a fish sucking pipe (1). A water sealing cover is arranged on the upper end face of the fish storage box body, a valve F3 is arranged on the water sealing cover, the fish storage box body is communicated with the water injection pipe (2), a valve F4 and a water injection pump P are arranged on the water injection pipe (2), the fish storage box body is communicated with the sucking pipe (3) which is provided with a valve F1 and a sucking pump P2, a fish partitioning net is arranged on the connection portion of the sucking pipe (3) and the fish storage box body, the fish storage box body is communicated with the fish sucking pipe (1) which is communicated with the upper end face of the fish storage box body, and the water injection pipe (2), the sucking pipe (3) and the fish sucking pipe (1) extend into the position below a water level where fish sucking is to be carried out respectively. The siphoning type fish sucking pump is simple in structure, low in manufacturing price and suitable for being widely popularized, water pressure changing is low, fish does not pass through operating parts, mechanical contact is avoided, fish body damage is low, energy loss is low, efficiency is high, and the labor intensity of live fish catching can be lowered.

Description

technical field [0001] The invention relates to a fish suction pump, in particular to a siphon type fish suction pump and its working method. Background technique [0002] In the past, manual methods such as dip nets and shovels have been used to catch and transport fish, which is time-consuming, labor-intensive, and easy to damage fish, making it difficult to adapt to the transport of live fish. As a device for transporting fish, the fish suction pump has changed the time-consuming and laborious situation in the past. With the continuous development of manufacturing technology, the structure and working principle of the fish suction pump have become more perfect. Its fields of application are also expanding. [0003] At present, the commonly used fish suction pumps mainly include vacuum fish suction pumps, centrifugal fish suction pumps and jet fish suction pumps. [0004] The research and development of foreign fish suction pumps began in the 1950s and 1960s, and vacuum ...

AI Technical Summary

Problems solved by technology

[0005] Due to the large internal pressure change, the vacuum fish suction pump cannot suck live fish, and the centrifugal fish suction pump generally cannot suck live fish, and the power consumption is high. The centrifugal fish suction pump for live fish has a complicated structure. High price and not widely available

In order to solve the technical problem that these traditional fish suction pumps are difficult to suck live fish, researchers have developed a live fish pump suitable for transporting live fish, which has begun to be used in marine fishing, shore unloading and farms, such as jet fish suction pumps, but Although the jet type fish suction pump can be applied to the fishing and transportation of live fish, its damage to the fish body is also very obvious. The Chinese invention patent of "Fish Suction Pump" discloses a jet-type fish suction pump, which uses the venturi tube effect of the ejector to make the fish move forward along the fish suction pipe, and the jet will also cause greater damage to the fish , its application is limited

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