Water Gas Oxygen Analyzer Water Gas Analysis System: Aiming at the severe working condition of extremely complicated harmful components contained in coke oven gas, the international advanced vortex tube refrigeration detar, naphthalene, water vapor and dust filtration technology is adopted to achieve the primary level of sampling and purification The purpose of processing. The analysis cabinet contains the following units: Pretreatment unit: the intermediate stage purification treatment of tar, naphthalene and other components is completed by special liquid filters (equivalent components of washing tank, mist filter and desulfurizer); by the condenser, peristaltic discharge The liquid pump, de-flow device, fine filter, etc. are used to complete the fine-level purification treatment; the special sample anti-corrosion suction pump, flow controller, etc. are used to obtain the gas and stabilize the flow of the sample. It carries out a series of links such as purification, dust removal, dehumidification, voltage stabilization and steady flow, and its filtration accuracy can reach 0.1μ.
The water gas analysis system sends the sample gas that meets the requirements to the analysis instrument to ensure the accuracy and long-term reliability of the analysis instrument. Analysis and control interlocking unit: the magnetic oxygen analyzer completes the online continuous analysis of the oxygen content of the sample gas, and continuously outputs a 4-20 mA signal. The oxygen analyzer has an alarm output contact, which can set the alarm and interlock value within the range of the range. When the O2 concentration exceeds the limit, the alarm and interlock will be performed.
Technical parameters and description:
Technical parameters: (working conditions of on-site sampling and analysis point of coke oven gas electric coke catcher)
Sampling point location: coke oven gas electric coke catcher outlet analysis parameter: O2 (analysis principle can be selected: electrochemical, magnetic oxygen or laser analyzer, its price is quite different)
Measuring range: O2: 0-2% (when it reaches 1%, O2 outputs the alarm node signal, free setting)
Measured gas temperature: 40 ～ 60 ℃
Dust content: trace water content: medium tar content: a small amount of other corrosive components (S O2): a small amount of crystals (naphthalene): a small amount of pipeline pressure: slightly positive pressure
product detailed information

Technical parameters of analysis cabinet components and devices: composed of pre-processing unit, power supply unit, analysis and proofreading unit.
(1) The pre-processing unit includes:
Special filter components (nai, tar), gas-liquid separator, dehumidifier, suction pump (imported parts), fine desulfurization pipe, flow regulator, etc. Through the comprehensive purification treatment of coarse and fine three-stage filtration and separation, absorption of dust, tar, naphthalene, acid mist, and cooling and dehumidifying water, it provides ultra-clean analytical gas source for analytical instruments.
(2) The power supply and control unit includes:
Power control panel (including high-performance air switch, wiring terminals), output fault alarm contact signal; with data collection, automatic processing of oxygen content content limit alarm function. Control central PLC, two-position three-way solenoid valve, etc.
(3) The analysis unit includes:
JNYQ-O-11C oxygen analyzer (imported sensor), flow meter, flow switching valve, standard sample gas, etc.
(4) Over-limit alarm function:
The water gas analysis system performs continuous online analysis on the purified gas sample, and outputs a 4-20mA signal and a passive electric shock signal. If the oxygen concentration exceeds the limit, the device immediately outputs an alarm contact signal (passive contact, capacity 1A) to ensure the safe operation of the electric coke catcher equipment.
(5) Measuring range and analysis accuracy:
Measuring object and measuring range: 0-2% O2
Accuracy: ≤ ± 1% FS
Linearity error: ≤ ± 1% FS
Device system response time: T90 ＜ 15S
(6) Signal output:
The large-screen LCD digital display on the spot shows the content of O2 and isolates and outputs to the upper computer or DCS with a 4-20mA component signal. Over-limit alarm, interlock and fault alarm signal output and capacity:
The alarm value of the oxygen concentration exceeding the limit can be set separately within the range of the instrument (the concentration alarm value is set at the factory: 0.80%, O2). The alarm signal output passive contact, capacity: 220VAC, 1A
(7) Pretreatment function of the device: stainless steel sampling probe, tertiary dust removal, sulfur removal, naphthalene removal, tar removal, acid mist removal, moisture removal, voltage stabilization, steady flow, rapid release, dust purification accuracy ≤0.1u
(8) Device maintenance cycle: ≥30 days 3. Design plan and configuration description of water gas analysis system
1. Configuration principles:
The important key components (such as suction pumps, sensors, PLC, etc.) in the water gas analysis system are imported from the original, and other key, main and general components that can be guaranteed for long-term use are manufactured by domestic joint ventures and factories, and are minimized Operational cost of later maintenance.

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