Flow channel type marine organism adhesion testing device

Abstract

The invention belongs to the technical field of marine organism tests and anti-fouling materials, and relates to a flow channel type marine organism adhesion testing device which is used for simulating the flowing state on the surface of a ship body, testing the adhesion of marine fouling organisms on the material surface and researching the effect of different flowing speed and environment conditions on the adhesion of marine fouling organisms. A water inlet, an stainless steel plate with openings, a honeycomb-shaped polycarbonate sheet, a stainless steel sieve plate and an exhaust valve are respectively manufactured on the upper side in a settling chamber of a box structure from right to left, a test cavity is manufactured at the left end of the settling chamber transversely, a differential pressure transformer is manufactured on the side edge at left end of the test cavity, a vacuum pump is arranged in the test cavity, a water tank is arranged at the left side end of the test cavity, a light source is manufactured at the top of the water tank, an outlet pipeline at the bottom part of the water tank is communicated with the water inlet under the control of a multi-end valve, and a frequency conversion pump, a flow meter and a pressure transmitter are respectively manufactured in the communicated pipeline sequentially; the structure is simple, the usage and operation are convenient and the data test is accurate, thereby being convenient for application and popularization.

Description

Technical field: [0001] The invention belongs to the technical field of marine organism testing and anti-fouling materials, and relates to a flow channel type marine organism adhesion test device, which is used to simulate the water flow state of the hull surface, test the adhesion of marine fouling organisms on the material surface, and study different water flow speeds And environmental conditions on the adhesion of marine fouling organisms. Background technique: [0002] In the marine environment, marine biological fouling will increase ship power consumption, accelerate material corrosion, and block seawater cooling pipelines. With the continuous development and growth of the utilization of marine resources and the ocean transportation industry, the problem of biological fouling of marine ships and engineering facilities has become a major issue affecting the development of the national economy and national security. At present, research on antifouling materials is in the as...

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Problems solved by technology

At present, the evaluation of the antifouling performance of antifouling materials mainly adopts the shallow sea hanging plate test (GB / T5370-2007) and the dynamic test method of antifouling performance of ship antifouling paint (GB / T7789-2007). The number and coverage area of ​​fouling organisms are analyzed. This method has the disadvantages of long cycle time and large consumption of raw materials.

In terms of bio-adhesion testing of marine fouling, in 2009, Dalian Fisheries Institute researched and established a "rotary hub" type adhesion testing device. Movement, by changing the flow rate of water to evaluate the adhesion of fouling organisms, this method has the disadvantages of low test accuracy, low degree of automation, and difficulty in meeting the needs of continuously developing research on antifouling materials.

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