Vacuum hot water boiler hot water boiler Vacuum Products Products vacuum hot water boiler works in the standard state, the vacuum boiler -76CMHG. After starting the boiler, fuel combustion heat is transferred to the heat medium heating surface of the water, the heat medium water is evaporated in heat exchange between the steam, the heat exchanger increase the vacuum chamber at a negative pressure within the furnace, condensate reflux of water to the furnace, boiler water using the steam phase change heat transfer process interact to achieve, through the phase change of the boiler water, water vapor condensation and evaporation furnace transfer latent heat boiler water to achieve the heat transfer process. Meanwhile, if the working medium of the heat exchanger, using the difference in heating temperature and the flow rate output with special requirements, can be specially designed according to the needs of users, the quality can be delivered on time. Heat exchanger, and the water distributor flange can be designed and manufactured of stainless steel for heat strong corrosive media. For larger heating case, a plurality of parallel operation may be performed, better results than the single-unit operation, better energy saving. The machine is running, a multi-purpose machine, while the need to provide different occasions, no need to install. Vacuum hot water boiler during operation, the internal pressure of the furnace in a vacuum state is always the -15cmHg-76cmHg. Even if the U-shaped heat exchanger leakage due to external pressure, or the operational failure can not exceed the external atmospheric pressure, the controller, the water temperature control, superheat and the vacuum pressure switch will automatically switch off the power. When the pressure reaches 0.025MPa, the safety valve will open automatically to withstand the discharge pressure.

Before coming heating season, Pinggu and Yanqing, Miyun three areas have been completed six large coal-fired boiler clean energy transformation, involving a total of 1660 tons of steam, residential heating area of ​​about 900 square meters, in order to promote the city's urban focus heating basically clean heating to make a strong contribution.

It is reported that, in addition to this rural area south of the coal-fired boiler house for reasons of space, and the remaining five of the original coal-fired boiler room facility will be retained as an emergency backup. Pinggu District-Valley heating plant boiler clean energy transformation project has been debugging equipment, the boiler room of the original four coal-fired boilers, a total of 400 tons of steam, heating an area of ​​about 2.5 million square meters, the new 3 sets of 100 tons of steam gas boiler is equipped with a heat pump.

Also, according to plan, City Management Committee led the development of the annual Yajian coal and clean energy facilities construction program to focus on the northern region, enhance power supply, gas supply capacity, promote Plains natural gas pipeline "town pass" to protect coal demand for clean energy. The basic realization of the city's plains village "No Coal", the phasing out of bulk coal sales within the region transformation of the industry and commerce department for bulk coal sales cancellation of registration in accordance with law, in principle, be issued a new business license. For failure to implement clean heating in winter 2018 and not included in the annual village "coal to clean energy" program, full implementation of quality coal instead.

Reduction of carbon dioxide, sulfur dioxide emissions

Pinggu District Management Committee, according to the person in charge, Riverside, Xia Xing Coal Valley and heating plant is heating an area of ​​7.416 million square meters, of which the heating plant heating Riverfront area of ​​4.1 million square meters, the Xingu heating plant heating an area of ​​2.808 million square meters, summer Coal heating plant heating area 508,000 square meters.

By upgrading "coal to gas", three heating plants meet emission standards Beijing local standard NOx emissions of less than 30 mg / standard cubic meter, while the amount of coal Yajian 160,000 tons per year, greatly reduce emissions of carbon dioxide, sulfur dioxide, nitrogen oxide.

Among them, Xingu heating plant "coal to gas" project officially started on May 16 this year, October 20, Sheung Shui, October 27 with the ignition conditions.

Riverside heating plant "coal to gas" on May 16 this year started, has completed the boiler and associated piping, heat pumps and ancillary equipment installation, ongoing electrical, control system debugging, October 22 has been Sheung Shui, October 29 have ignition conditions.

Summer Coal heating plant "coal gas" this year officially started on August 18, has completed commissioning of boiler facilities and associated piping, heat pumps and ancillary equipment installation, ongoing electrical, control systems, etc., on October 29 water, with firing conditions.

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Factors influencing the performance of the vacuum boiler which 1) the boiler body, the valve, the instrument no leaks. At present, including imported equipment, including valves and no guaranteed not to leak occur within three years. 2) Whether the control section has failed, and the negative pressure controller boiler controller will inevitably fail in operation, for example, the failure rate controller made even higher. 3) vacuum pumps, three-way solenoid valve, the device is working properly, because the vacuum pump, three-way solenoid valve does not run often, too easily imported stuck and run. 4) should not be a sudden change in load. Boiler load change is normal. Boilers generally such that 30% to 100% load regulation.