chemical industry gas hot water pipe boiler
Gas chemical industry hot water pipe boiler Burner Failures and gas boiler burners Failures and - best ￼ a gas boiler, gas boiler burner ignition misfire rod reasons: 1, the ignition bar gap interposed carbon residue with oil. 2, ignition rods fragmentation. moist. Leakage. 3, the distance between the ignition does not stick, too long or short. 4, ignition rods Insulation damage, short to ground. 5, ignition cable and transformer failure: cable, connector damage caused by a short circuit during ignition; transformer break or other fault occurs. Measures following five: Clear, renewal, adjust the distance, change and switching transformer. Second, gas boiler, but spark ignition rods misfire reasons: 1, the cyclone disc space ventilation is blocked carbon, poor ventilation. 2, dirty oil nozzle clogging or wear. 3, the throttle angle is set too small. 4, the firing bar from the leading edge from the oil nozzle tip inappropriate (too protruding or retracted) 5, the first solenoid valve is an oil debris blocking gun (gun small kerosene). 6, oily or too viscous to flow easily clogged or the oil filtration system the valve is not opened, so that insufficient suction pump, oil pressure. 7, the filter pump itself blocked. 8, the oil more water (boiling abnormal noise within the heater). Measures are: Clear; first wash, such as not renewed; turndown test; adjusting the distance (in 3 ~ 4mm as well); Remove cleaning (cleaning the parts diesel); Check tubing and oil filters, insulation equipment ; remove peripheral screw pump, carefully remove the cover inside out oil network, with immersion oil; renewal of the test oil. Third, when the gas boiler and turn the fire a small fire normal, off, or flashing instability reasons: 1, the air volume damper setting fire too. 2, oil fires micro switch valve (damper outermost that group) inappropriate setting (set throttle air flow rate is greater than the fire). 3, oleaginous easy to spray viscosity is too high (heavy). 4, and the nozzle plate spacing cyclone inappropriate. 5, fire nozzle worn or dirty. 6, the preliminary fuel tank temperature is too high, so that the steam not smooth oil pump oil feed. 7, fuel oil boiler water. Action: Test gradually reduced; heating temperature; adjusting the distance (between 0 ~ 10mm); clean or replace; approximately set to about 50 deg.] C; or drain oil change. Fourth, the noise increases gas boiler burner reasons: 1, cut-off valve is closed or the passage into the fuel shortage, an oil filter blockage. 2, the oil inlet temperature is low, the oil viscosity is too high or the temperature is too high the pump inlet. 3, oil pump failure. 4, fan motor bearing damage. 5, dirty fan impeller. Processing methods: ① the oil line check valve is open, if the oil filter is working properly, the filter cleaning pump itself. ② heating oil or reduce the oil temperature. ③ Replace the oil pump. ④ replace motor or bearings. ⑤ cleaning fan wheel.
After the gas hot water chemical industry hot water pipe boiler hot water boiler vaporization emergency 1. Vaporization handler circulating pump stops abnormally pump failure caused by: ① blower stops running immediately. ② immediately open the door, take measures to pressure the fire, lift the chute gate, cutting off the supply of coal grate. ③ In the case of boiler pressure not greater than 0.6MPa (600KPa), the exhaust valve to follow, only a sharp rise in pressure in the boiler deflated, used only relief exceeds 0.9MPa, and the exhaust process to be carried out slowly, prevention boiler due to loss of pressure and more violently again vaporized. ④ close the boiler water, water main gas valve. ⑤ open stop valve recirculation line, to ensure that the water supply pipe velocity convection heating surface (economizer) to prevent re-vaporization of the economizer. ⑥ The operation of the above operation, at the same time to pay the boiler to reduce the boiler water temperature and the furnace pressure. ⑦ After the boiler pressure is normal, i.e., opening the standby circulating pump, into the normal combustion. 2. Treatment failure or sudden loss of power boiler vaporization of power: ① immediately open the door, lift the coal chute slide gate to take pressure fire measures to reduce the oven temperature. ② Grate with the fastest speed in order in the shortest time to fire onto the slag tap. ③ the degree of treatment in the first case. Once a short time can not supply heating network system, antifreeze should take emergency measures. 3. Due to excessive heat boiler boiler vaporization process: ① the immediate closure of the drum, induced draft fan. ② immediately open the door, take measures to pressure the fire, lift the supply of coal chute slide gate, off of coal, while the grate into fast gear. ③ In the case confirmed the presence of water, the boiler can supply water to the boiler body, boiler out of the water while closing the main valve. ④ Open line stop valve recirculation pump to ensure water velocity convection heating surface of the pipe, to prevent the economizer again vaporized. ⑤ Open circulating pump with jog mode, jog each time less than 30 seconds, again less than one minute jog interval. Jog purpose is to reduce the boiler water temperature, while preventing a large amount of steam into the pipeline system. ⑥ back into place after the safety valve, circulating pump running, and then the normal burning stove. 4. Water boiler system run vaporization process due to water loss, loss of pressure caused by: ① immediately closed drum, induced draft fan. ② out of the water while closing the main valve and the boiler circulating pump. ③ take the same measures to cool the furnace tube described above. ④ Open stop valve recirculation line. ⑤ rely exhaust valve until the safety valve back into place. ⑥ until the boiler water temperature drops below 50 ℃, when the temperature of the furnace temperature less number 200 ℃, again within the boiler feed water, water course to be carried out slowly, to prevent harm to the boiler when the temperature is too large. ⑦ After processing leakage fault, the system time to the replenishment, and out of the water boiler always open the valve, and the circulating pump, and then normal combustion.
Recently, in Hebei (Shijiazhuang, Tangshan, Handan, Xingtai, Baoding, Cangzhou, Langfang, Hengshui, Taiyuan), Shanxi (Yangquan, Changzhi, Jincheng), Shandong (Jinan, Zibo, Jining, Texas, Liaocheng, Binzhou, Heze ), Henan Province (Zhengzhou, Kaifeng, Anyang, Hebi, Xinxiang, Jiaozuo, Puyang) and other municipal people's government, security male New District management Committee, Dingzhou, Xinji, Jiyuan City people's government and the China National petroleum Group Co., Ltd., China petroleum and Chemical Group Corporation, China national Offshore oil Group Co., Ltd., State grid Co., Ltd., China Railway jointly issued on the issuance - notice "2018 in Beijing, Tianjin and the surrounding areas in 2019 autumn and winter tackling air pollution comprehensive management action plan" of.
The following are the provisions on the rectification of energy.
Setting goals: adhere to the principle of maintaining stability in the consolidation of ambient air quality improvement achievements, promote air quality continues to improve. Fully completed to improve air quality objectives 2018; Oct. 1, 2018 to March 31, 2019, (of PM2.5) Jingjinji average concentration of fine particles and the surrounding area fell about 3%, and more severe pollution days year reduced by about 3%. The main embodiment of the above-mentioned range is "26 + 2" city.
Execution method: to promote clean heating, iron revolution, transformation of provincial enterprises mentioned standard, focusing on the consolidation of comprehensive "scattered pollution" enterprise rectification results, pay close attention to diesel trains, industrial furnaces and volatile organic compounds (VOSc) special rectification, strengthening regional joint prevention and control, to effectively deal with heavy pollution weather, strict supervision and accountability, to further promote the comprehensive management of air pollution in autumn and winter tackling behavior.
First, strictly control the "two high" industry capacity. Before the end of December 2018 to complete the delineation of ecological protection red line. At the same time, increase the iron and steel, coking, building materials industry production capacity out and Yajian efforts to be included in the capacity of iron and steel enterprises, supporting the need to also sign sintering, coke oven, blast furnace and other equipment. 2018, steel production in Hebei Yajian can withdraw 10 million tons, 2.25 million tons in Shanxi Yajian quit, Shandong Province Yajian raised 3.55 million tons. Ensuring electricity, heat stable supply basis, 38 out of the task a total of 2.77 million kilowatts of coal-fired units of small thermal power units in the region.
Second, to deepen industrial pollution control. Since October 2018 1 May, the strict implementation of thermal power, steel, petrochemical, nonferrous metals (excluding aluminum), cement industry, industrial boilers and air pollutant emission limits in particular, to promote pollution control facilities upgrading in key industries. Continue to promote the industrial enterprises fugitive emissions control, under the conditions of safe production license, the implementation of closed storage, custody transfer, collection system, the end of December 2018 basically completed.
Third, effectively promote clean heating. The pooling of resources and vigorously promote the coal for governance, the country should be in accordance with the pre-heating period in 2020 basically completed the life and motivations of heating coal for alternative tasks required plains, to develop a three-year implementation program to determine the annual task of governance, both agricultural greenhouses, animal building, etc. bulk coal governance, promote energy-saving buildings synchronization, improve energy efficiency.
According to the country report, before the end of October 2018, "26 + 2" cities to complete the bulk coal substitution 3.62 million. Among them, Beijing replace 150,000, Plains basically bulk coal "cleared"; Tianjin replace 190,000, and strive to the end of October 2019, the basic completion of coal for alternative work; Hebei replace 1.74 million, and strive to 2019 basically completed before the end of October to the south of Beijing, bulk coal substitute work north of Shijiazhuang City; Shanxi replace 280 000, 450 000, Shandong Province, alternative, Henan replace 810,000. Around the township or county as a unit overall progress, complete replacement of bulk coal regions, and adopt comprehensive measures to prevent bulk coal burning complex.
Fourth, to carry out comprehensive improvement of the boiler. According to the law to increase the small coal-fired boilers in accordance with regulations (including tea furnace, operating a stove, grain storage and drying equipment, coal-fired facilities) elimination efforts.
Before the end of December 2018, Beijing, Tianjin, Hebei (city) basically eliminated 35 tons of steam per hour coal-fired boilers; Shanxi, Shandong, Henan eliminated 10 tons of steam per hour and coal-fired boilers, urban area basically eliminated 35 tons of steam per hour at coal-fired boilers.
Before the end of October 2018, Tianjin, Hebei, Shandong, Hebei (city) basically completed 65 tons of steam per hour and above ultra-low emission coal-fired boilers transformation, to achieve ultra-low-emission coal-fired power plant level. Biomass boilers should be dedicated boiler, coal and other prohibited blended with other fuels, efficient dust bags and other ancillary facilities. Actively promote the urban area of biomass boilers ultra-low emissions transformation.
Accelerate the transformation of low nitrogen gas-fired boilers, in principle, after the transformation of Danyang outdoor emission concentration is not higher than 50 mg / cubic meter, before the end of October 2018, Beijing basically completed the task of transformation of low nitrogen gas boiler; Tianjin complete the transformation of 222 units, 5908 tons of steam; Hebei Province, completed 353 units, 8028 tons of steam; Shanxi Province, completed 17 sets of 100 tons of steam; Shandong Province, completed 182 units, 409 tons of steam; Henan Province, and strive to complete 278 units, 1450 tons of steam.
Fifth, speed up clean energy alternatives. Of coal, petroleum coke, residual oil, heavy oil as the fuel of a heating furnace, heat treatment furnace, a drying furnace (kiln), and accelerate the use of clean energy and the use of plant waste heat, thermal power plants and the like instead.
Before the end of December 2018, the basic ban coal-fired stove, the iron and steel industry, coal-fired heating boilers; nonferrous metals industry basically out of coal-fired kilns, coal-fired reverberatory furnace, lead melting pots and pans electrical lead with coal as a fuel; basically eliminated coal-fired cogeneration heating the heating pipe network coverage, drying furnace (kiln); blast furnace gas, coke oven gas desulfurization transformation embodiment, the gas hydrogen sulfide concentration of less than 20 mg / m; diameter vigorously eliminate hearth 3 meters fuels gas furnace; industrial park focused on the use of gas stoves, they will not have to switch to natural conditions, should build a unified clean coal gas central principle. Prohibition blended sulfur petroleum coke.
Steam chemical industry hot water pipe boiler should be noted that when Di operating high specification and steam boiler efficiency matters, strong firepower, Di is a common production equipment, but also has some of its own Di dangerous if used improperly, it will cause unnecessary trouble. So master the instructions for use steam boilers, clear during the operation Di Di precautions are necessary. Note that when then the next, the editor based on years of experience, the use of steam boilers with compliance and Di operational considerations summarized below. A steam boiler Use: When the company receives a steam boiler, boiler Di for normal use, as well as business operators Di their own safety, must strictly abide by the "Production Safety Law," "Boiler and Pressure Vessel Safety Supervision Provisional Regulations" "Steam Boiler the relevant provisions of security technology supervision regulations ". This applies to a fixed pressure steam boiler water as a medium, comprising a coal-fired steam boiler, a steam boiler fuel, gas steam boiler. Use of the boiler plant Di technology should have the appropriate certificate, have both technical documentation and construction quality boiler installation supporting information. Enterprises must attach great importance to the boiler safety. Appoint a full-time staff responsible for managing the boiler equipment, improve the management of the use of boilers in accordance with code requirements. Formulate ensure the safe operation of the boiler structure according to the type of boiler, combustion and explosion-proof requirements and procedures, fire prevention, anti-virus and other security management system and the accident approach, in accordance with its strict implementation. Do not drink alcohol and posts and off-site. Boiler should be regularly repair and maintenance, the unit can not be forced to use any security risk boiler. Should be repaired before construction drawings and technical solutions. Repair of technical expertise required reference standards and relevant technical regulations boiler. After completion of repairs, should the pattern, material quality certificate, a certificate of quality inspection and repair and other technical information is stored in the technical archives plant boilers. Non-boiler room operator banned from entering the workplace. Foreign workers must be accompanied by the relevant approval of the leadership or before entering Second, the need to pay attention to Di operational considerations when using the steam boiler: 1, before the boiler must be familiar with the operation manual, simply to protect the safety of the operator and the normal use of the device Di, before starting inspection whether the power supply voltage and the normal operation of the water, close the drain valve, open the water supply valve and check whether the pump stuck, stuck if the water pump cover remove the fan, scroll to the motor shaft can be turned on flexible state inspection or replacement of parts for boilers Turn off the power to avoid live work dangerous. 2, electric control boxes, pump motors and other parts should avoid damp water to prevent burning boiler should pay attention to keep clean, according to the boiler water quality requirements, be sure to install a water softener in use, because they do not use a water softener can cause boiler fouling severe cases can cause burst pipes cut short the life of the boiler. 3, if not in accordance with the provisions of the use of water treatment equipment caused by the above situations are not covered under the warranty, please pay attention when using sewage. To discharge once a day and with a discharge pressure of 0.1MPa-0.15MPa, can prevent clogging pipes, sewage pipes should be properly connected to prevent burns, the flexibility of the safety valve should overhaul, at least once a month to quickly pull the lever to check the safety valve flexibility it off and back seats, the safety valve should be regularly every year to the local technical supervision for verification.