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dzl series coal fired hot water boiler

"Fangkuai" boiler relies on its own products and technical advantages in industrial boilers and automatic control, and uses advanced Internet of Things technology, mobile internet technology, cloud computing technology, big data technology and intelligent control technology with heat sources, heat networks, and thermal users. It is highly centralized to form an intelligent cloud management and control center, which truly realizes the intelligentization of industrial boilers. "Fangkuai" remote monitoring system for boilers has improved boiler operation efficiency; "Fangkuai" boiler cloud service platform allows boilers to learn to think; "Fangkuai" boiler big data allows boiler cloud service platform to have "super brain"; " The real-time monitoring of the “Fangkuai” boiler makes the boiler problem nowhere to hide; the “Fangkuai” boiler 400 service system makes the service more convenient and faster.

Coal-fired boilers to gas-fired boiler and the basic requirements of a program, the transformation of the basic requirements: 1, the boiler must be carried out in accordance with "Steam Boiler Safety Technology Supervision" and "Hot Water Boiler Safety Technology Supervision" and relevant national technical regulations, construction program should be sent to the local technical supervision departments for approval. 2, to determine the value in use based on the transformation of the boiler has the age and state of the art, taking into account the life expectancy of the boiler. If the boiler use a longer useful life, and the pressure there is a serious corrosion, scaling and overheating phenomena such elements, no transformation of value. 3, boiler walls, chimneys, water supply and air supply, the wind system should remain largely intact. 4, after the transformation of the original technical parameters should be kept constant boiler (operating pressure, temperature, etc.) or the load and to improve the efficiency of the original boiler. 5, after the boiler should comply with national environmental and technical indicators, solve the problem of smoke and dust, meet environmental requirements. 6, when the boiler should try not to change the original pot, and the body is pressed by the original system architecture, covers the smaller the better. 7, rehabilitation programs should be simple, low investment, short construction period and quick, safe and reliable. Second, the transformation method: 1, removal of the original coal-fired boiler slag machine, equipment on coal, dust, chain grate and gearbox. 2, according to the diameter and length of the flame, furnace installation height determining geometric dimensions and the burner. 3, making the furnace, the furnace bottom refractory brick, a semicircular shape. 4, the front arch openings mounted burner nozzle. 5, after that the flame away from the center position of the tube the arch, the arch of the pipe on the basis of the original slope, heightening baffle wall, the protective tube arch. 6, install blast doors. 7, install the induced draft fan drive. 8, the body of the boiler water test pressure 1.5 times the working pressure. 9, the automatic control system installed. Third, the technical proposal: 1, furnace design should consider the flame length and diameter of the flame of the combustion gas, so that the furnace space is filled with the best of the flame, the flame not Wall flush. 2, as the main component of natural gas CH4, H20 generated after combustion, steam share large, so that strong radiation, heating furnace suitably increased to take advantage of the radiation heat transfer, thermal efficiency, reduce the consumption of steel, ensure that the boiler output, and may increase the boiler output. 3, a slight positive pressure within the boiler furnace using a combustion or slightly negative pressure, the sealing performance of the boiler furnace walls to strengthen, not air leakage. 4, due to the smaller excess air ratio of the gas boiler, combustion requires less air flow, coupled with the removal of dust, dust and small flue system, the flue resistance is reduced, a large surplus primer fan flow, using file when the damper plate adjusting the power loss is large, frequency control can be induced draft fan air volume regulation. 5, after the furnace door and see the fire smoke chamber above the chimney, mounted two proof doors, in order to improve the antiknock performance of the boiler. 6, the boiler flue gas the volume of gas in the vapor component is generally 15% to 19%, well above the coal-fired boiler flue gases generated in the water vapor content of 6% by volume or less. Boiler shutdown and startup, due to the low wall temperature of the boiler heating element, when less than less 50 ℃, the flue gas water vapor dew condensation on the wall will, if not removed condensate with the condensate of the contact wall would be C02 acid gas corrosion of furnace wall and the insulation material due to water absorption and thermal insulation effect will be lost. Therefore, before and after the gas dzl series coal fired hot water boiler smoke box and the rear box and the rear flue smoke condensate discharge means to be provided, promptly boiler condensate removal. 7, the gas boiler-system control function should have combustion process. Pre-blowing may be implemented, auto-ignition, flame detector self-test, automatic load adjustment, flame monitoring, fault alarm interlock shutdown, the gas leak detection valve, induced draft fan and burner control sequential chain protection. 8, in order to prevent fluctuations in the gas pressure regulator to meet the burner requirements, the installation of a gas regulator metering panel outer gas inlet in the boiler room, the surge counter can be accomplished by filtration, regulating, metering, safety shut-off functions.

6 tph WNS series condensing gas-fired steam boiler project for printing and dyeing industrySteam boilers provide heat source for dyeing, drying, slashing and printing in printing and dyeing industry. Nantong New Dunhuang Dyeing Co. LTD. has always been providing excellent products and after-sales service to customers for the 16 years' constant development, main business including: yarn bleaching and sales, sales of carpet and garment fabrics and  decoration cloth. As the state is promoting the substitution of small gas-fired boilers, Nantong New Dunhuan decided to introduce one set of gas-fired steam boiler with sufficient output and high efficiency. A set of high-quality boiler is essential for a dyeing and printing enterprise, which can not only enhance productivity but also reduce operating costs. After some market research, Nantong New Dunhuang chose ZOZEN as their cost-effective boiler supplier. In the process of technical communication, New Dunhuang spoke highly of ZOZEN professional degree and ordered one set of 6 tph WNS series gas-fired steam boiler (WNS6-1.25-Q). This series of boilers is ZOZEN's own R&D and has good reputation in the market with excellent product performance. It has wide fuel adaptability, applicable to a wide range of fuels including natural gas, methane, coal gas, diesel, heavy oil, light oil, etc., It adopts a large-diameter corrugated furnace to ensure the completed combustion, along with a low NOx burner, the NOx emission can be controlled below 30mg/Nm3. The boiler features automatic and safe operation, can automatically adjust and protect the combustion condition, water level, temperature and steam pressure in the course of operating. ZOZEN also installed the condenser, economizer for the tail flue, which would recycle the flue gas and decrease the exhaust temperature below to 60 degrees. The thermal efficiency is as high as 98%, which is higher than the same products in the market.

Power plant: utility boiler burning coal with various power, natural gas, heavy fuel oil, coke oven gas blast furnace steel plant, biomass (straw, rice hulls, coconut shells, sawdust, etc.), waste rock, shale oil, petroleum coke, water treatment plant sludge, garbage and so on.