Supply of electricity Tar oxygen content in the gas analyzer (electrochemical, magnetic oxygen, laser) electric Tar in the oxygen content of the gas trapped in gas analyzer equipment tar fog and organic Tar Tar two kinds of electricity, China is currently the main use electricity Tar Tar trapping gas in the fog. Electric tar by precipitation levels can be divided into tubular structures, cellular, concentric and plate types. Tar generate electricity is the use of high-voltage electrostatic interaction under positive and negative, so that the gas in coal tar by fog at the time with the electric Tar, due to the effect of high voltage electric field of trapped down. Because of flammable gas, it is necessary to ensure the safety of electric tar operation. In addition, the inter-electrode electrical Tar corona, spark discharge phenomenon may occur. If the gas is mixed with oxygen, when the mixing ratio of the gas and oxygen to reach the explosion limit will explode. ? Gas oxygen content control the main source of oxygen gas in the following aspects, one is due to the production process equipment and piping leaks into the air;? Second gasification gasification agent excess or short; the third is in the gas production process, there will be a certain amount of air into the coal gas. In order to ensure air mixture is mixed with the gas after the explosion limit is not reached, it should be controlled gas oxygen content. "Town Gas Design Code" (GB 50028-2006) provides that when the dry distillation volume percentage of oxygen in the gas is greater than 1%, electricity Tar should send alarm signals. When the volume percentage of oxygen to reach 2%, provided measures should be immediately cut off the power supply. "Industrial enterprises Gas Safety Regulations" (GB 6222-2005) also have this requirement. These provisions are on a volume percentage of oxygen in the gas should not exceed 1% limit. But the more conservative limits, the larger the actual production process operations difficult. ? TR-9200 coke oven gas oxygen content of process analysis and detection system? TR-9200 series coking, metallurgical process analysis system is specialized for coking electric Tar, converter gas recovery process of the metallurgical industry. Pulverized coal injection process. Blast furnace. Gravity dust. And various industrial gas gas cabinets and other ancillary equipment sets on-line process analysis system. ? Coke oven gas, also known as coke oven gas. Refers formulated into several bituminous coking coal, after high temperature carbonization in a coke oven, a combustible gas at the output of coke and tar products generated simultaneously, is a byproduct of coking industry. ? Coke oven gas is a mixture, the yields and composition vary depending on the quality of coking coal and coking process conditions vary, generally per ton of dry coal to produce coke oven gas 300 ~ 350m3 (standard state). The main components of hydrogen (55% ~ 60%) and methane (23% to 27%), additionally containing small amounts of carbon monoxide (5% ~ 8%), C2 or more unsaturated hydrocarbons (2% to 4%), carbon dioxide (1.5% to 3%), oxygen (0.3% to 0.8%)), nitrogen (3% to 7%). Wherein hydrogen, methane, carbon monoxide, C2 or more unsaturated hydrocarbon combustible component, carbon dioxide, nitrogen, oxygen, non-flammable component. ? Coke oven gas belongs to the calorific value of the gas, the heat value of 17 ~ 19MJ per standard cubic meter, suitable for use as high-temperature industrial furnace fuel and city gas. Coke oven gas containing hydrogen gas is high, after the separation for ammonia, other components such as methane and ethylene can be used as raw material for organic synthesis. Coke oven gas is toxic and explosive gases, air explosion limit is 6% to 30%. ? TR-9200 The device is suitable for all kinds of electric fishing and various types of furnace coke gas pipeline in the oxygen content measured by automated analysis of the oxygen content and achieve safety interlock control equipment, the system fully automated by Siemens PLC composition and function control analysis control device: The device is mechanical, electrical, instrument integration control device sets of analyzes. Analysis of the entire device from the enclosure assembly (including internal sample purification unit, the control and analysis unit proofreading purging unit, etc.) and special sampling device mounted on the assembly process piping components. ? Special sampling device: COG contain harmful ingredients for extremely harsh conditions of this complex, using international advanced vortex control cold tar removal, in addition to naphthalene, purpose except water vapor and dust filter technology to the primary sample purification process. Analysis of the cabinet contains the following elements: pre-processing unit: the special liquid filter (sink, mist filter, in addition to sulfur is equivalent components to complete purification tar, naphthalene and other ingredients of the middle-class purification; from the condenser, creeping discharge pump, flow separation, a fine filters and other components to complete the fine level of purification; by special corrosion-resistant suction pump, air traffic controllers and other components to take samples and steady flow of work step by step to ensure that the coke oven gas sample. purification, dust, dampness, regulation, steady flow and a series of links, the filtration accuracy of up to 0.1μ. will meet the requirements of the test sample gas, into the analytical instruments to ensure the accuracy and long-term reliability of the instruments work Sexual analysis control interlock unit: by magnetic oxygen analyzer sample gas oxygen content complete line continuous analysis, continuous output 4-20mA signal alarm output contact with oxygen analyzer, you can set the alarm and interlock value within the range. When the concentration of O2 content overrun alarm and interlock technical parameters and notes:? Technical parameters :( coke oven gas power unit on-site sampling and analysis capture point condition) sampling point: electric fishing coke oven gas outlet analysis Parameters: O2 (optional analysis principle: electrochemical, magnetic or laser oxygen analyzer, its price is quite different) Measuring range: O2: 0-2% (1% O2 when it reaches the output node alarm signal, set free) measured gas temperature: 40 ~ 60 ℃ dust content: trace moisture: moderate amount of tar containing: a small number of other corrosive ingredients (S O2): a small amount of crystals (naphthalene): a small number of pipeline pressure: slightly positive Product Details analysis cabinet components and equipment technical parameters: by pre-treatment unit, power supply unit, analyzing proofreading units (1) pre-processing unit includes: a dedicated filter assembly (except Chennai, tar), gas-liquid separator, dehumidifiers, air pump (import parts), fine sulfur removal tube, flow regulator, etc. through coarse and fine three filtration and separation, absorb dust, tar, Chennai, mist, cooling and dehumidifying moisture integrated purification, analytical instruments provide clean analysis . gas source (2) power supply and control unit includes: power control panel (including high-performance air switch, terminals,), fault alarm contact signal output; with data acquisition, automatic processing of oxygen ingredient limit alarm function control center PLC. , two-way solenoid valves, etc. (3) analysis unit includes:.?. JNYQ-O-11C type oxygen analyzer (imported sensors), flow meters, flow path switching valve, standard sample gas, etc. (4) the more limited Alarm function: Gas analyzer sample cleanup after continuous on-line analysis, the output signal of 4-20mA signal and passive electrical shock if the oxygen concentration in the limit, the device immediately contact alarm output signal (passive contact capacity 1A), to ensure that electricity. Coke is the safe operation of fishing equipment (5) measurement range and accuracy of analysis: measurement object and range: 0-2% O2 Accuracy:? ≤ ± 1% FS linearity error:? ≤ ± 1% FS device system response time: T90 < 15S (6) Output: the scene of the large LCD digital display O2 content and isolated 4-20mA output signal components to the host computer or DCS. Limit alarm, interlock, fault alarm signal output and capacity: oxygen concentration limit alarm value within the range of the instrument ranges can be set (factory setting alarm concentrations: 0.80%, O2) alarm signal output passive contact, Capacity: 220VAC, 1A (7) pre-processing stainless steel sampling probe devices, three dust, sulfur removal, in addition to naphthalene, tar removal, in addition to mist, with the exception of water, power, steady flow, rapid elution, dust purification accuracy ≤ 0.1u (8) equipment maintenance cycle: ≥30 day three, a design and configuration instructions, configuration guidelines: The analyzer is an important key components (eg: air pump, sensors, PLC, etc.) using imported, other long-term the key to ensuring the use of the main components and the general use of domestic joint ventures and manufacturing factory to minimize operating costs post-maintenance. 2, the analysis apparatus main technical features are as follows: The device is based on "turnkey" project design. In addition to the external device and a dedicated sampler filter assembly, pre-processing unit of the sample gas, power supply units and analysis proofread analysis unit are placed inside, the factory is completed. Users only need to install the probe site, paved sampling lines, peripheral power and cabinet in place to analyze. When supply-side technical personnel to the scene to guide the press installation and commissioning. 3. Analysis of the cabinet according to the national standard production, large windows opened to facilitate the operator to observe inspections and maintenance. . 4, system-wide dry process, the analysis of the components will not affect the sampler, sampling tube, all kinds of pipe fittings (contact with the sample gas section), are corrosion suction pump design. Anti-corrosion stainless steel pumps etc, PTFE or special anti-corrosion treatment to improve corrosion resistance of the system. Ensure that the system life. 5, automatic dehumidifier, has a long life, less maintenance, dehumidification stability characteristics, residual moisture in the sample gas will be completely removed, so as to achieve the purpose of drying the sample gas, to avoid interference with the water vapor instrument. For details, please contact: Xi'an shaped 18392002847 Instrument Co., Zhang Lei