Hydrogen sulphide gas on-line detecting and alarming device of fishroom on fishing boat

Abstract

The invention relates to an online hydrogen sulfide detecting-alarming device especially used for fish holds of a fishing vessel, comprising a detecting-alarming host-processor arranged on a navigation bridge of the fishing vessel, a hydrogen sulfide sensor installing cover arranged on a soleplate of the detected fish hold and a hydrogen sulfide concentration probe which is provided with two synchronous-working semiconductor sensors inside and is connected with the detecting-alarming host-processor through a four-core signal cable. The alarming adopts an internal voice and indicator alarm to realize the automatic detection and hidden-trouble elimination. The host-processor has big capability and one host can be connected with four hydrogen sulfide concentration probes so as to realize theonline detection and alarm to the hydrogen sulfide concentration of four fish holds. The online hydrogen sulfide detecting-alarming device has higher sensitivity and reliability in rigid environment and can adapt to the long-term online stable working in an actual severe environment of the fishing vessel, with constant service life of more than 12 months, simple installing process, convenient operation and concise alarming-indication meaning.

Description

technical field [0001] The invention relates to the long-term on-line detection and alarm of the poisonous hydrogen sulfide gas in fish tanks of fishing boats by using a semiconductor hydrogen sulfide sensor. Background technique [0002] It is a very effective and reliable technology to use gas sensors to detect and monitor the concentration of harmful target gases, such as smoke alarms widely used in hotels and public places, and gas, CO, methane and other flammable and toxic gas alarms widely used in enterprises, factories and mines device etc. Under the normal conditions of use on land, gas concentration sensors based on electrochemical principles, catalytic combustion principles or semiconductor gas sensing principles can have reliable detection performance. [0003] In the environment of fishing boats operating in the ocean, it is difficult to directly transfer all kinds of mature gas alarms on land to fishing boats, especially the fish tanks of fishing boats with har...

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Problems solved by technology

[0003] In the environment of fishing boats operating in the ocean, it is difficult to directly transfer all kinds of mature gas alarms on land to fishing boats, especially the fish tanks of fishing boats with harsher environments. On the sea surface, fishing boats will only enter the port to berth during special occasions, such as the fishing moratorium or the Spring Festival. That is to say, whether it is equipment installation or maintenance, the time window it can provide is very limited. The equipment must first be stable, reliable, and easy to use. Even if a failure occurs on the sea, the continuous operation of the detection equipment can be guaranteed through simple replacement operations; secondly, the natural harsh natural environment of fishing boats is critical for semiconductor technology and electronic information technology products. It brings challenges in terms of long-term working reliability and stability. The most important thing is to prevent the corrosion of seawater and sea breeze and the corrosion of high humidity and high salinity in fish tanks. Therefore, various mature gas alarms suitable for land environments are currently available on the market. None of the detectors can be directly applied to the environment of fishing boats; finally, the particularity of the generation and elimination of hydrogen sulfide gas in the fish tank determines the particularity of the installation location and method of the probe and the alarm host, which brings about the design considerations of the probe and the host. multifaceted

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