Modular liquid path for ocean detection instrument

Abstract

The invention discloses a modular liquid path for an ocean detection instrument. The modular liquid path comprises a liquid path engraving part and end cover parts on the two sides, wherein the two sides of the liquid path engraving part are provided with a plurality of liquid path grooves; the liquid path grooves communicate by first through holes formed in the liquid path engraving part; sealinggrooves are formed in the peripheries of the liquid path grooves; bumps matched with the sealing grooves are arranged on the inner sides of the end cover parts; and second through holes correspondingin position are further formed in the end cover parts and the liquid path engraving part. According to the modular liquid path, the occupied space of the liquid path is reduced, the process requirements are reduced, the cost is effectively controlled, the sealing performance is good, the probability of blocking the liquid path by bubbles is reduced, and the modular liquid path is adaptive to ocean environment detection.

Description

technical field [0001] The invention relates to the technical field of water quality detection, in particular to a modular fluid circuit for marine detection instruments. Background technique [0002] At present, most of the marine instruments are foreign products, and only in recent years have domestic manufacturers started to develop marine instruments. Among the existing marine instruments, most of them focus on measuring single parameters, and there are few instruments that can simultaneously measure multiple parameters. Therefore, its liquid circuit basically exists in the form of various pipelines. Of course, various fluid structural parts are also added to various pipelines, such as three-way, four-way, one-way valves, conversion joints, etc. . In the few multi-parameter instruments, there are few liquid circuit modules, and the design is basically based on pipelines. The reason for this situation is that the special application environment of marine instruments li...

AI Technical Summary

Problems solved by technology

In the case of limited internal space of the instrument, it is very easy to damage the pipeline at the joint position, and it may also be deformed, making the liquid flow rate uneven, or even blocking the pipeline

[0011] In addition, if the instrument is put into the deep sea, the pressure will increase significantly. When designing the structure, the volume of the instrument must be limited, so that the internal space of the instrument is limited, which further increases the occurrence of extrusion damage between pipelines.

[0012] 3) The impact of cost

However, its processing technology and materials are limited, which makes the cost high. If it needs to meet the requirements of corrosion resistance, pressure resistance, and ease of processing at the same time, the cost is very high

Taking ceramic materials as an example, the processing cost of a 1 square inch module is about 10,000 yuan, and it is also very easy to damage

[0014] The patent document with the application number 201811261914.8 discloses a low-pressure liquid circuit integrated block and its processing technology, but its processing technology is complex and requires high precision. The three-layer substrate needs to be bonded with UV, so the material selection is relatively limited.

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