液貨監(jiān)測(cè)報(bào)警系統(tǒng)技術(shù)說明書

Liquid cargo monitoring alarm system technical specification

一、系統(tǒng)組成/ System composition

本系統(tǒng)主要由液貨艙的液貨監(jiān)測(cè)系統(tǒng)（包含貨艙壓力、溫度、液位傳感器、高液位報(bào)警及溢流報(bào)警探頭等）、泵組溫度監(jiān)測(cè)系統(tǒng)、貨泵進(jìn)出口壓力監(jiān)測(cè)系統(tǒng)、艙底水監(jiān)測(cè)系統(tǒng)以及氣體探測(cè)系統(tǒng)構(gòu)成。     

The system is mainly composed of the liquid cargo monitoring system of the cargo tank (including cargo pressure, temperature, liquid level sensor, high level alarm and overflow alarm probe, etc.), the temperature monitoring system of the pump group, the pressure monitoring system of the cargo pump inlet and outlet, the bilge water monitoring system and the gas detection system

二、主要設(shè)備技術(shù)參數(shù)及功能描述/ Main equipment technical parameters and function description

2.1液貨綜合監(jiān)測(cè)報(bào)警控制臺(tái)/ Liquid cargo integrated monitoring alarm console

本控制臺(tái)可兼容220V和24VDC兩組電源供電，并具備任一失電報(bào)警提示功能；

The console can be compatible with 220V and 24VDC two groups of power supply, and has any power loss alarm function;

本系統(tǒng)集合了所有需要監(jiān)測(cè)報(bào)警的數(shù)據(jù)并進(jìn)行顯示和報(bào)警，做到了集中監(jiān)控并有效的將危險(xiǎn)區(qū)域與安全區(qū)域分離開，大大提高了設(shè)備的安全性和穩(wěn)定性。系統(tǒng)采用電腦顯示模式，高位高高位報(bào)警系統(tǒng)獨(dú)立方式。

The system collects all the data that need to be monitored and alarmed and displays and alarms, so as to achieve centralized monitoring and effectively separate the dangerous area from the safe area, which greatly improves the safety and stability of the equipment. The system adopts computer display mode, high and high alarm system independent mode

2.2 高位高高位監(jiān)測(cè)報(bào)警系統(tǒng)/ High and high monitoring alarm system:                                      

主要利用磁性浮球?qū)Ω苫晒艿奈吓c斷開來控制開關(guān)的通斷以實(shí)現(xiàn)對(duì)液位高度的報(bào)警。根據(jù)艙底高度設(shè)置95%和98%兩個(gè)報(bào)警高度值，液位在相應(yīng)的報(bào)警值處時(shí)，控制系統(tǒng)將發(fā)出指令啟動(dòng)報(bào)警設(shè)備（聲光報(bào)警器）進(jìn)行報(bào)警，以起到提示作用，保障安全。

The magnetic float is mainly used to draw and disconnect the reed tube to control the switch on and off to realize the alarm of liquid level height. Two alarm height values of 95% and 98% are set according to the bilge height, and when the liquid level is at the corresponding alarm value, the control system will issue an instruction to start the alarm device (sound and light alarm) to alarm, so as to play a warning role and ensure safety.

2.3 貨倉壓力監(jiān)測(cè)報(bào)警系統(tǒng)/ Warehouse pressure monitoring and alarm system:

基本原理：壓力變送器選用進(jìn)口壓力芯片，敏感元件采用擴(kuò)散或離子注入等工藝形成電阻并連接成惠斯通電橋，用微機(jī)械加工技術(shù)在電橋下形成壓力敏感膜片。當(dāng)壓力作用在膜片上時(shí)，電阻值發(fā)生變化并且產(chǎn)生一個(gè)與作用壓力成正比的線性化輸出信號(hào)。我們?cè)诨菟雇姌蛏霞由现绷麟娫?，就?huì)產(chǎn)生一個(gè)直流電壓信號(hào)的輸出。經(jīng)過二次轉(zhuǎn)換線路，實(shí)現(xiàn)兩線制4～20MA輸出。（本產(chǎn)品通常與液位高位及溢流報(bào)警器一體設(shè)計(jì)，使得產(chǎn)品結(jié)構(gòu)更為優(yōu)化，同時(shí)減少用戶安裝成本）

Basic principle: The pressure transmitter adopts imported pressure chip, the sensitive element adopts diffusion or ion implantation process to form resistance and connect to Wheatstone bridge, and the pressure sensitive diaphragm is formed under the electric bridge with micromachining technology. When pressure is applied to the diaphragm, the resistance value changes and produces a linearized output signal proportional to the applied pressure. When we add a DC power supply to the Wheatstone bridge, we produce an output of a DC voltage signal. Through the secondary conversion line, the two-wire system 4 ~ 20MA output is realized. (This product is usually designed with liquid level high and overflow alarm, which makes the product structure more optimized and reduces the installation cost of the user)

2.4 貨倉液位監(jiān)測(cè)報(bào)警系統(tǒng)/ Warehouse level monitoring and alarm system

液位測(cè)量主要采用兩種方式：浮球液位計(jì)和雷達(dá)液位計(jì)測(cè)量方式。

There are two main ways to measure liquid level: float level meter and radar level meter.

浮球液位計(jì)主要由信號(hào)轉(zhuǎn)換電路及傳感器電路組成，傳感器電路有磁性開關(guān)串聯(lián)電阻形成不同阻值輸出的阻抗電路，當(dāng)外界介質(zhì)帶動(dòng)浮球位移時(shí)。浮球中安裝的磁鐵會(huì)控制磁性開關(guān)進(jìn)行分?jǐn)嗟膭?dòng)作從而使得出接的電阻接入電路造成總體阻抗的變化,再經(jīng)由后端的檢測(cè)放大電路輸出標(biāo)準(zhǔn)的信號(hào)數(shù)值發(fā)送給終端設(shè)備從而轉(zhuǎn)化顯示相對(duì)應(yīng)的液位高度。

The float level meter is mainly composed of a signal conversion circuit and a sensor circuit. The sensor circuit has a magnetic switch series resistor to form an impedance circuit with different resistance values. When the external medium drives the float displacement. The magnet installed in the float will control the magnetic switch for breaking action, so that the outgoing resistance is connected to the circuit and the overall impedance is changed, and then the standard signal value is sent to the terminal device through the detection and amplification circuit at the back end to transform and display the corresponding liquid level height.

雷達(dá)液位計(jì)是基于時(shí)間行程原理的測(cè)量儀表，雷達(dá)波以光速運(yùn)行，運(yùn)行時(shí)間可以通過電子部件被轉(zhuǎn)換成物位信號(hào)。探頭發(fā)出高頻脈沖在空間以光速傳播，當(dāng)脈沖遇到物料表面時(shí)反射回來被儀表內(nèi)的接收器接收，并將距離信號(hào)轉(zhuǎn)化為物位信號(hào)從而顯示液位高度。

高/調(diào)頻非接觸式雷達(dá)液位計(jì)更加適用于漿料、瀝青、原油等高粘度液體及顆粒料的物位連續(xù)測(cè)量，適用于對(duì)溫度壓力變化大、腐蝕性強(qiáng)等惡劣環(huán)，本身的非接觸式結(jié)構(gòu)，使得本款產(chǎn)品使用壽命長，精度高、可靠性強(qiáng)而且設(shè)備體積小、重量輕，安裝方便，易于后期維護(hù)。

Radar level meter is a measuring instrument based on the principle of time travel. Radar waves travel at the speed of light, and the running time can be converted into level signals through electronic components. The probe sends out a high-frequency pulse to travel at the speed of light in space. When the pulse meets the surface of the material, it is reflected back by the receiver in the instrument, and the distance signal is converted into a level signal to show the liquid level height.

High/FM non-contact radar level meter is more suitable for continuous level measurement of slurry, asphalt, crude oil and other high viscosity liquids and particles, suitable for temperature and pressure changes, strong corrosion and other harsh rings, its own non-contact structure, making this product long service life, high precision, strong reliability and equipment small size, light weight, easy installation, easy maintenance.

2.5 貨倉溫度監(jiān)測(cè)報(bào)警系統(tǒng)/ Warehouse temperature monitoring and alarm system

溫度傳感器的主要原理就是主要通過PT100電阻信號(hào)傳輸，通過電路板使得電阻信號(hào)轉(zhuǎn)換成電信號(hào)，實(shí)現(xiàn)溫度的測(cè)量顯示。

The main principle of the temperature sensor is mainly through the PT100 resistance signal transmission, through the circuit board to convert the resistance signal into an electrical signal, to achieve temperature measurement and display.

2.6 貨泵機(jī)組溫度監(jiān)測(cè)報(bào)警系統(tǒng)/ Cargo pump unit temperature monitoring and alarm system

溫度傳感器的主要原理就是主要通過PT100電阻信號(hào)傳輸，通過電路板使得電阻信號(hào)轉(zhuǎn)換成電信號(hào)，實(shí)現(xiàn)溫度的測(cè)量顯示。

The main principle of the temperature sensor is mainly through the PT100 resistance signal transmission, through the circuit board to convert the resistance signal into an electrical signal, to achieve temperature measurement and display.

2.7機(jī)艙/貨泵艙艙底水高位報(bào)警系統(tǒng)/ Engine room/cargo pump room high bilge alarm system

基本原理同（2.2），主要區(qū)別在于艙底水是單浮球控制，當(dāng)污油水達(dá)到設(shè)定值時(shí)即可報(bào)警，以起到提示作用，保障安全。

The basic principle is the same as (2.2), the main difference is that the bilge water is controlled by a single float, and the alarm can be given when the contaminated water reaches the set value, so as to play a warning role and ensure safety.

2.8 貨泵進(jìn)出口壓力監(jiān)測(cè)報(bào)警系統(tǒng)/ Cargo pump inlet and outlet pressure monitoring and alarm system

基本原理同（2.3）：略。

Same basic principle (2.3) : omitted.

主要通過采集各貨泵工作時(shí)的進(jìn)口及出口壓力數(shù)據(jù)來監(jiān)控貨泵的正常運(yùn)行狀態(tài)，為保障正常的工作的提供數(shù)據(jù)參考。

The normal operation status of the cargo pump is monitored mainly by collecting the inlet and outlet pressure data of each cargo pump during work, so as to provide data reference for ensuring normal work.

2.9可燃?xì)怏w監(jiān)測(cè)報(bào)警系統(tǒng)/ Combustible gas monitoring and alarm system

主要基本原理是采用進(jìn)口傳感器，可連續(xù)檢測(cè)工作場(chǎng)所環(huán)境中可燃性氣體最低爆炸極限以下的濃度。 它能輸出與濃度成正比的4~20mADC信號(hào)，此信號(hào)引入貨控系統(tǒng)，實(shí)現(xiàn)報(bào)警和連鎖控制功能。

The main principle is the use of imported sensors, which can continuously detect the concentration of combustible gases in the workplace environment below the lowest explosion limit. It can output a 4~20mADC signal proportional to the concentration, which is introduced into the cargo control system to achieve alarm and chain control functions.