According to the local conditions, the boiler use unit formulates the relationship between the boiler outlet water temperature and the outdoor air temperature. In the operation, according to the corresponding relationship between the specified outlet water temperature and the outdoor air temperature, the combustion amount is adjusted in time, and the water supply temperature of the network management system is required to be different from the specified temperature. 120 ° C. The change of water supply temperature should be carried out step by step, and the water temperature increase or decrease should not exceed 20 °C.
The obvious advantage of low nitrogen combined 8 ton horizontal boilers, you sure are aware of? Low nitrogen series boiler products are based on traditional boiler on the introduction of the new power plant, by increasing the low nitrogen treatment technology to reduce nitrogen oxides and other harmful substances to the following countries emission limit requirements, high performance, clean and environmentally friendly characteristics of the fine . So, this is the reason many companies choose it, then the specific features of this popular low nitrogen boiler in the end, what does? 1, a high degree of automation and easy to operate a conventional boiler requires specialized operators to perform opening and closing device, a low nitrogen and high professional boiler manufacturers boiler degree of automation, the user need not personally to the plants opening and closing device, in greater distances through the control system also controls the operation of the equipment. In practice, users simply click to complete the open and close of low nitrogen boiler work. 2, the automatic cleaning ability and optimize the structure of low-nitrogen professional boiler uses the heat exchanger element reliable quality wings threaded pipe and tube, not only to optimize the convective heat transfer and reduce the thermal stress, which can increase the flow rate of the flue gas , also has a strong self-cleaning ability and structural optimization, after the flue gas is less likely to erosion by high speed ashed, and can be kept clean, so this is one of the specific features of a low nitrogen boiler. 3, ingenious design and energy saving boiler having a low nitrogen obvious structural features cleverly designed, optimized boiler furnace using a computer simulation designed such that its morphology even more generous coordination; In addition, the boiler further having a low energy N environmental characteristics, the outer duct by using a relatively low thermal conductivity of the heat insulating glass wool insulation centrifugation, thereby reducing the amount of heat of the boiler and achieve energy saving effect. According to the above fast boiler boilers for low-nitrogen summary, we can see that it is by virtue low nitrogen boiler with reliable quality and advanced technology generally recognized enterprise, not just because it has simple operation and significant energy saving the features, but also because with superior cleaning and automatic optimization of structural capacity to ensure the normal operation of the co-workers, enterprises can save a considerable amount of energy consumption costs.
A general increase in the standard of environmental governance, Huzhou City, Zhejiang Province closely follow the direction of development policy, will gradually phase out coal-fired combined 8 ton horizontal boilerss or adapted for the gas boiler. According to statistics, Huzhou City Nanxun five years has eliminated nearly 3,000 small coal-fired boiler, saving 720,000 tons of coal resources.
Remediation process, district departments form a joint working group, while the seizure of small boilers, while helping business transformation. Behind the small boiler one Taiwan "puff", representing a small wood processing, printing and dyeing, textile and a number of high pollution and high energy consumption enterprises. They only destroyed the visual landscape, but also pollutes the lies to be the region's transformation and upgrading process must break the "pots and pans."
Huzhou referred morning Decoration Co., the person in charge mentioned: "In the past coal-fired boiler pollution does not say, but heating is not stable, press only a day after more than 300 wood boiler replacement, productivity improved significantly, now at least a day. can be pressed more than 500. "this shows once production efficiency improvement, enterprise back to the speed can be increased to a year.
After the disappearance of small boilers, or to benefit a lot of people around. "Our village is known for the production and processing of small wood gathering, the family opened the window every morning before'll see a row of chimneys in the distance 'spit black smoke'. Now grinding temperature, steam generator replaced the original coal boiler, surrounding environment has improved significantly. "FEATURE before the flood who lives in the village of Lao Shi sincerely laments.
Improvement in the area of active removal of small boilers companies subsidies, also made detailed provisions on subsidy amount of different types of boilers. Meanwhile, the district has built South Lake thermoelectric, thermoelectric GCL, Guodian three cogeneration projects, the laying of 200 km of heating pipe network, and the end of last year to achieve full coverage of central heating.
Condensate recovery combined 8 ton horizontal boilers of Embodiment 1, how the recovery boiler steam condensate recovery system recovering exhaust system high-temperature condensed water, the condensed water can maximize the use of heat, water conservation, fuel economy. Condensate recovery system can be divided into open and closed recovery system recovery system. Recovery system is open to a condensate recovery tank to the boiler, the condensed water recovery and utilization in the process, one end of the recovery pipe is open to the atmosphere, i.e., the condensed water collection tank is open to the atmosphere. When the lower pressure of the condensed water, can not be reached by the pressure from recycling properties, high temperature condensed water pump pressure-feeding. The advantage of this system is that the device is simple, easy to operate, a small initial investment; however, a large area of the system, resulting in low economic efficiency, larger environmental pollution, and since the condensed water is directly in contact with the atmosphere, dissolved oxygen concentration in the condensed water improved, easy to produce equipment corrosion. This system is suitable for small vapor supply systems, a small amount of condensate, small amounts of secondary steam system. When using this system should minimize emissions of secondary steam. Condensate recovery system is a closed tank and all piping are set at constant pressure, the system is closed. Condensate system has most of the energy recovery through a certain recovery device directly to the boiler, the condensed water recovery temperature loss in the cooling portion of the pipe network only, since closed, quality assurance, the water reduces the cost of recovery into the boiler . The advantage is economic good condensate recovery, long working life of the equipment, but the system is relatively large initial investment, operation inconvenient. 2. Select recovery methods for different condensate reconstruction project, which way the recovery and recycling equipment selection, is whether the project can achieve the purpose of investment crucial step. First, we must accurately grasp the condensed water condensate recovery system, if the condensed water is not calculated correctly, will make the condensate pipe diameter selected too large or too small. Second, to properly control the pressure and temperature of the condensed water, which embodiment uses the recovery system, which device, how to arrange the pipe network, the condensate temperature and pressure are related. Third, the trap condensate recovery system is selected to be noted that the content, wrong trap selection, will affect the pressure and temperature at which condensation water use, also affect the normal operation of the recovery system. Recovery efficiency is not as high as possible in the system selection, but also consider economic issues, that is considered waste heat utilization efficiency, we must also consider the initial investment. Due to the high efficiency of closed recovery system, less environmental pollution, are often preferred.
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