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First, before regularly shutting down boilers and inspecting electric furnaces, the following three aspects of preparation should be done: The main contents are as follows: (1) consult the technical file of boiler retrofit electric furnace registration and understand the use of boiler retrofit electric furnace. In order to make the boiler reform electric furnace inside and outside inspection, the general need to know: boiler transformation electric furnace design, manufacturing, installation situation; boiler transformation electric furnace transformation situation; boiler transformation electric furnace operation history and use situation; Boiler retrofit electric furnace water treatment, boiler rules and regulations implementation, and so on.

2) the preparation for stopping the furnace before inspection. First, according to the maintenance schedule, the furnace shutdown date is arranged, and then the boiler revamping electric furnace is shut down according to the normal shut-down procedure, so that the furnace is slowly frustrated. The cooling method can be adopted by injecting gas to dissipate the sinking water, replacing the furnace water for cooling, and cooling by ventilation in the in-line furnace. When the temperature of the furnace water drops to 70 ℃ 80 ℃, the water can be discharged. Open all the doors. When opening the door hole, prevent warm water, steam suddenly spurts out to burn people. The steam, feed water and sewage pipes in the furnace are separated from the corresponding pipes in the boiler revamping furnace in operation. The baffle used for partition should be strong enough to avoid being bulged out by high pressure media. Break position Clear instructions should be given. The flue which is connected with other boiler revamping electric furnaces should also be reliably separated. In addition, it is necessary to remove the soot and scale on the heating surface of the boiler retrofit electric furnace.

3) preparation of inspection tools and lighting. In order to ensure smooth inspection work, inspectors should prepare the necessary instruments, tools, gauges and safe and reliable lighting.

Zhejiang Yiwu issued the "Yiwu winning Blue Sky Battle 2019--2020 action plan." Plan to improve air quality, enhance people's happiness index target put forward concrete measures of implementation, as follows.

1, vigorously develop clean energy. In-depth implementation of the "creation of a national clean energy demonstration Zhejiang Province Action Plan (2018-2020 years)" "Zhejiang three-year action plan for natural gas development (2018-2020 years)" and "Jinhua" Thirteen Five "Renewable Energy Development planning". According to "gas of the gas should be '' should the electric power" principle, energy companies actively guide clean energy alternative embodiment, in 2020, the proportion of the power in the final energy consumption of clean energy consumption accounting for the higher level, the city gas consumption amounted to 150 million cubic meters.

2, control total coal consumption. Strengthen energy consumption and total energy consumption intensity dual control, strict new coal project access, new (modified, expanded) construction project coal consumption reduction of coal instead. By 2020, the city's total coal consumption by 2015, down from more than 5%. Continue to promote alternative energy coal and oil, replace reached the national requirements. No new 35 t steam / hour or less polluting fuels boilers. Strengthening coal quality control, promote clean coal utilization. Before the end of 2020, clean coal utilization rate of 92%, the proportion of electricity than to accept deliveries in 2017 significantly increased.

3, to carry out comprehensive improvement of coal-fired boilers. Increase efforts to eliminate small coal-fired boilers, the urban built-up area basically eliminated tea furnace, operating a stove, grain storage and drying equipment, coal-fired facilities; basically out of 10 steam tons / hour and 35 steam tons / hour coal-fired boilers. 35 t steam / hour and more polluting fuels boilers completed ultra-low emissions and energy transformation. Low nitrogen gas boiler basically completed the transformation. Strict control of the new urban area of ​​biomass boilers. Biomass boilers should be dedicated boiler, blended prohibit other fuels such as coal, and other supporting efficient dust bag embodiment, non-coal, oil, natural gas-fired boilers and the like directly Burning biomass briquettes.

4, the positive development of central heating. Cogeneration units to increase the technological transformation efforts, speed up the heating pipe network construction, improve the heating capacity and the full release before the end of 2020, phasing out the cogeneration district heating pipe network coverage and high pollution coal-fired boilers in the range. In the area where no cogeneration district heating conditions, a plurality of existing small coal-fired boilers, an alternative construction of large-capacity coal-fired boiler in accordance with the principles of the reduction or the equivalent.

5, deepening the construction of high-pollution fuel combustion zone ban. According to "adjust Yiwu prohibit the use of polluting fuels sales area plan" (Yi Zheng Ban Fa [2018] No. 180) documentation requirements, a comprehensive investigation and eliminate high-polluting fuel facilities within the city, to ensure that no dead ends, no blind spots, Finish high pollution fuel combustion zone ban burning building before July 2019.

6, improve energy efficiency. Vigorously develop, promote energy efficient technologies and products to achieve key energy industries, energy-saving equipment standard full coverage. New energy-intensive projects per unit of product (output) energy consumption should reach the international advanced level. Local conditions to improve building energy efficiency standards, and increase efforts to promote green building, city guide implementation of green building standards for new buildings. Renovation of existing residential buildings to promote energy conservation, encourage rural energy-saving housing.

Use electric pressure boiler precautions Currently, the hottest senior electrical pressure boilers to produce thermal energy equipment is a high temperature and pressure, which is used in a broad walks of life, such as: electrical, mechanical, chemical and civil heating boiler needs supplying a large amount of thermal energy. However, users in the use of electric pressure boiler noticed a few things to be careful to ensure the normal operation of equipment. So, to give you interpret the following considerations for running electric pressure boiler? Details are as follows: first, to adjust the current device Feed Mode, since the electric pressure hot water boiler stops operating boiler system is set off, the user pressure boiler and electrical heating system should pay attention Sheung respectively. In addition, users first need to boiler water filling boiler expansion tank to the lowest level and thus the system Sheung Shui. Meanwhile, electric boiler pressure system should pay attention to the water-filled gas discharge apparatus. Second, note that the electrical ignition test apparatus boiler pressure before ignition starts, the user in addition to various auxiliary boiler inspection equipment, which automatically open and close the valve should pay particular attention to whether the water sensitive and reliable opening and observe boiler change, if the device stops operation, the water level rose rapidly, the devices automatically open and close valve leakage serious, users should be timely maintenance or replacement of components of electrical pressure boilers. Third, pay attention to the temperature change in the electrical equipment is running as the water temperature is too high pressure hot water boiler circulating pump is likely to cause vaporization of the entrance that affect the normal operation of the pump device. Thus, the user should pay attention to the use of the device to be electrically controlled pressure boiler water temperature, and the water temperature of the device should be controlled below 90 ℃. When addition, if the user needs a long time to stop the electric boiler operation pressure higher discount, the user should access the boiler outlet valves closed, so preventing the circulating water in the system was poured into the boiler device is formed empty the system high pressure boiler electrical phenomenon to affect the start again. All in all, users in the use of electrical pressure boilers should pay attention to these matters can only facilitates the subsequent use of the device.

Two methods decontamination mounted electric boiler recent introduction of a new electric boiler in the market, its own heater decontamination, manifolds for supply and return pipe connection brightest feature heated water and sinks water, which normally consists of three sub-manifold portion trap, manifold and mounting bracket composed, per trap effect after the introduction of each separate heat source hot water passage pipe, is to separate the cooling sump cold water inside to bring together all the way. Automatic exhaust valve when the air in the system, accumulation of gas in the upper portion of the exhaust valve, in vivo accumulation of the bubbles so that float drops with the water level, thus opening the exhaust piston; After gas drained, the water level rises, the float will also rise , closing the exhaust piston. As the cap is screwed tight valve body side portion, the exhaust valve to stop the exhaust gas, in general, the bonnet should be in an open state, the expansion tank is an important component of central hot water heating system and air-conditioning water system, its role is housed and expansion shrinkage compensating system water. The expansion tank is generally located at the highest point of the system, it is typically connected to the vicinity of the circulating pump (pump central air chilled water) suction inlet and return water pipes. The electric boiler is usually the size of decontamination decontamination installation has the following two methods: 1, installed in the station. Decontamination station generally larger, or attached to the return pipe before a heater, in order to prevent debris flowing into the heater; 2, mounted on the water supply pipe outside the station. Decontamination station at the well outside the home are generally small, usually mounted on the water supply pipe, installed some systems, some systems are not installed, its role is to prevent debris entering the user's radiator.

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