Since November, the Hulun Buir City, Inner Mongolia Special Equipment Inspection conducted inspection operation in the southern region of the Greater Xing'an Mountains in the boiler, the number of test boiler total of 44 units.
The inspection work will strictly follow the "Boiler Safety Technology Supervision" and "boiler regular inspection rules" to. For affiliated found during inspection instruments and safety accessories not check and did not check after the expiration of other safety hazards at the scene told directly using the unit, and issued a "special equipment inspection and opinions notice" to avoid a security incident in the boiler during operation .
Well designed and optimized the small series main parameters of chain grate coal fired steam boiler for paper maintenance check before delivery of submersible pumps confirm Henan fast boiler us with all the main parameters of the steam boiler optimization design and delivery of well maintenance check before confirming with submersible pumps steam boiler with other boiler Like products, in order to improve the combustion efficiency of the boiler must optimize the product, this article lists the following items index to optimize the design parameters and performance indicators as steam hot water boiler for reference purposes only. (1) to ensure safe operation of the hot water boiler steam: hot water boiler steam integral part life more than 30 years, the life by wear of the heating surface reaches more than 15 years. (2) Operation Economy excellent hot water boiler steam: Steam hot water boiler efficiency of 91% -93%, 99% combustion efficiency; small soda system flow resistance, reducing the power consumption of the feed pump; reduced gas side resistance losses, reducing blower, fan, and other auxiliary equipment mill power consumption. (3) has a good regulation performance: adjusting the combustion, steam temperature adjustment, like the boiler drum water level regulator flexible and effective. (4) investment cost savings: Enhanced heat transfer, reduce the consumption of metal, especially a reduction in the consumption of advanced metallic materials; under the premise of ensuring product quality, reduce manufacturing, transportation, construction and maintenance, operating costs. (5) High Reliability Run: available more than 90%, fewer unplanned downtime; fire, deflagration, and no accident slagging operation of the steam boiler hot water; heating surface leakage and over-temperature occurs, tube rupture. (6) has a good load following properties: rapid start and stop, load change quickly. (7) running stability: stable operation of the steam boiler parameters, thermal stress is small and easy to adjust automatically with coal and load changes. (8) slight heating surface wear, less fouling, corrosion, emissions meet environmental requirements. Check well before delivery inspection confirmed ① out with submersible well pumps, valves, and pre-population with submersible pumps line valve closed; ② confirmed wells with submersible pump inlet line valve closed temporary purged with nitrogen, removal of temporary hose, cap installed; ③ confirmation discharge line valve closed torch; ④ confirm the submersible well pump has been fully emptied medium (neat) with; ⑤ discharge line to confirm a closed valve closed; ⑥ confirmed vent valve opening (Ming row); ⑦ confirm submersible well pump body temperature was lowered to room temperature; ⑧ contact operating position within the pump power corresponding to the apparatus; ⑨ card to send electrical power plant, the pump power; ⑩ confirm that the pump motor off.
Why horizontal gas chain grate coal fired steam boiler for paper to run under negative pressure? Horizontal Gas-fired steam boilers are generally negative pressure operation, if the pressure is running high temperature flue gas will cause the furnace to burn jet furnace walls and insulation, but also endanger the safety of operating personnel , the negative pressure is not too large, generally -10 ~ -30Pa, small oil-fired boiler is generally because there is no draft fan for the combustion positive pressure. For improving the thermal efficiency of the boiler has the following methods: a low pressure industrial boiler manufacturers has been designed in consideration of the problem of overheating efficiency, device, or change from the flue gas energy aspects is not possible and thus the best energy boiler operation starting from the (here not On the recovered water of vapor condensation). According to statistics survey, the current design of the thermal efficiency of domestic low-voltage industrial boilers is generally 70 to 90%, generally the actual operation of the thermal efficiency of about 60 to 80%, some even below 50%, a small low pressure industrial boilers as long as the operation, maintenance properly, design can achieve the thermal efficiency of the boiler manufacturers. I think the management and operation of the boiler should pay attention to the following points: First, to monitor the boiler exhaust gas temperature. Usually the largest boiler flue gas heat loss is a loss, so control the boiler flue gas temperature is very important, general industrial boilers low pressure gas (mainly refers to less than 10 tons of boiler and pressure of 1.6MPa, the same below) of the exhaust gas temperature is 150 ~ 180 ℃, oil-fired boiler exhaust gas temperature is 210 ~ 240 ℃, when the exhaust gas temperature is too high to find the cause and timely elimination. Causes of high temperature exhaust gas boiler are: a chamber negative pressure is too high, short-circuiting flue gases, the heat pipe 3 soot is too thick, too thick scale pan 4, etc., oil-fired boiler exhaust gas temperature is too high reasons : 1 air not adjusted oil, the oil is not completely burned in the chimney secondary combustion occurs aft, 2 soot too, the need for timely cleaning, the flue gas short circuit 3, 4 is too thick scale, etc. second, the control of boiler blowdown rate. General industrial boiler blowdown rate controlled at 5 to 10%, in the pot of water to ensure that qualified (mainly total alkalinity and pH) under the premise of boiler blowdown rate as low as possible, the sewage to adhere to the "ground row, row less, uniform discharge "principle. Third, the maintenance of good boiler furnace wall insulation. Boiler heat loss is also a relatively large heat losses, now the boiler manufacturers in the manufacturing and design has been well thought out, so we do not need to change, we just trying to be difficult to maintain. Outsourcing surface temperature generally does not exceed the boiler 50 ℃, such as too high will have to find out the reasons, timely elimination. Boiler insulation should always be kept dry for gas boilers, pressure must not run long, or easy to damage the coal furnace wall and gate and so on. Fourth, adjust the ratio of fuel and air volume, complete combustion of the fuel as possible. Small boilers generally do not have the amount of wind testing instruments, we can only go by experience adjustment. For oil-fired boiler, the normal combustion flame was yellow-white, non-glare, flame stability, no visible smoke chimney; for gas boiler, the normal combustion flame as a light yellow, no visible smoke stack, substantially cinder burn coal particles as uniform as possible. Fifth, there must be complete boiler water treatment. Complete boiler water treatment and water quality testing can maximize prevent boiler scaling and correct guidance of the sewage, but it did not do a lot of small boilers, companies usually do not pay attention.
Washing plant how supporting the right chain grate coal fired steam boiler for paper? In recent days we have several customers asked us to call consulting company has not washing equipment for steam boilers? What are the washing equipment manufacturers and supporting? In fact, we collaborated with the company several years ago a lot of manufacturers of Taizhou in Jiangsu, and Shanghai washing plant. General washing machine and electric heating steam boiler used in a hotel laundry, the electrically heated boiler cost is high, as electric steam boiler 1 ton per hour, power consumption of 760 degrees, coal-fired steam boiler into steam boiler, oil and gas steam boiler steam boiler, where coal-fired steam boiler in terms of equipment prices and fuel prices are the most provinces, with the national emphasis on environmental protection in many big cities of coal-fired boilers have been used to prevent, but we produced this coal is coal dual-use firewood, burning garbage can, and smoke from the chimney to the smoke is white, and the same plant where the flue gas desulfurization is the result of dust, greatly reduce the pollution of the environment. According to the number of gas-fired boilers for environmental protection, but gas-fired boilers to be determined according to local gas supply and prices, in some places there is no natural gas pipelines, liquefied gas, then if there is too cumbersome. Taikang County Hengyu Thermal Equipment Co., Ltd. has many years of production experience, has been relatively mature production experience and improve the quality system, at a cost of domestic and imported the most advanced production equipment to ensure that each boiler factory pass rate of 100 percent, the company sales team distributed in more than twenty provinces, lifting the user's worries. When washing room washing machine purchase should pay attention to the boiler
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