how to choose a vacuum hot water boiler

Comparison of service life of boiler body: 1, vacuum boiler. As a result of vacuum boiler negative pressure work, the primary water supplement reduces the boiler body scaling, the oxygen corrosion and so on, because the boiler body is closed, the primary water cannot add the medicine to maintain every year, the atmospheric pressure boiler has also adopted the international advanced scale prevention, the oxygen corrosion prevention measure. The actual life of the boiler is equal to that of the normal pressure boiler. Even if the life of the boiler is longer, the service life of the boiler control element and burner cannot be longer than that of the normal pressure boiler. 2, atmospheric boiler

Several causes of water pressure in the vacuum boiler efficiency indicators are carrying substantially all parts of the coal gas impressive action, application of how to choose a vacuum hot water boiler, to reduce the very high infected fine particles, while the nitrogen oxides and other toxic gases, emissions have also been suppressed. Efficiency is a key indicator of a measure of navigation vacuum hot water boiler, look under vacuum pressure hot water boiler efficiency indicators together after several incentives continued. After inquire stakeholders, vacuum hot water boiler heat losses probably exists in two portions comprising: air-fuel combustion flue gas emissions ignore want heat loss. Emission reduction of heat loss can be fitted in vacuo latent heat of the flue hot water boiler recirculation configuration, application or system will be more advanced condensing boiler. Combustion air-fuel ratio over the substandard Analysis: Usually ejector vacuum hot water boiler burner, causing the air-fuel ratio can not be flexibly adjusted. Very many vacuum hot water boiler uses a mechanical blower burner, causing air-fuel ratio over the causes are the following: over the air-fuel ratio can be roughly divided into two types comprise situations: when oxygen is in excess, there will be Unlimited air is excessively low thermal conductivity, resulting in improved vacuum hot water boiler operating costs, low efficiency indicators vacuum hot water boiler; when oxygen is insufficient, there will not fully kindled state, a low vacuum hot water boiler efficiency index.

It is understood that, recently, the ecological environment Department of Henan Province issued the "Henan electricity in 2019 non-standard governance program industry" and six special programs, mainly to further promote the campaign of air pollution control, to ensure that the province's ambient air quality continues to improve. Meanwhile, the "plan" also made clear this year Henan Province industrial air pollution control in key tasks.

The province meet the conditions of steel, coke, cement, carbon (including graphite), flat glass (including electronic glass), aluminum and other six major industries and enterprises, the requirements before the end of this year to complete the mentioned standard treatment, the required limits for reducing pollutant emissions. Carry closed down or banned brick kiln, lime kiln, tunnel kiln, firing kiln and a variety of smelting furnace, roaster and so on nine categories of Kiln, upgrading, restructuring and integration work. Before the end of October this year, all kinds of industrial furnaces to achieve discharge standards.

Before the end of June this year, the province's petrochemical, oil refining, industrial coating, packaging, printing, chemicals, pharmaceuticals and other industrial enterprises, the full completion of volatile organic compounds pollution control; before the end of August, the province's petrochemical, oil refining companies to complete volatile organic compounds depth governance and leak detection and repair of governance; before the end of December, the provincial cities of built-up areas phasing out the open dry-cleaning machine.

Before the end of October this year, in addition to undertaking tasks and will not have the alternative livelihood conditions, the province completed 35 steam tons / h coal-fired boilers and the removal or clean energy transformation, provincial cities and county (city) district built 4 tons of steam and above gas-fired boiler, fuel (including alcohol-based fuel) boiler low nitrogen transformation complete, the provincial municipality to build a biomass boiler area (including biomass power plants) completed the first ultra-low emissions transformation. Before the end of June this year, the completion of the provincial cities to build coal-fired facilities Chaigai all industrial areas.

1. What is a vacuum? Divided into physical vacuum and vacuum industrial vacuum. Vacuum means that no physical space of any particle. Industrial vacuum means a pressure lower than the atmospheric gas space standard. It refers to a thin gas state. It is usually obtained by a special pump. Vacuum vacuum boilers are industrial vacuum.

2. What are vacuum hot water boiler? Vacuum boiler is a vacuum environment, the sealed furnace body negative pressure, so that the furnace body is filled with heating medium water. The heating medium water heated by burning or otherwise, and then evaporated by the heat medium and condensed water into a heat exchanger, then heating the water to be heated by the heat medium water. Vacuum heat boiler indicated: oil, gas, natural gas, natural gas, electricity -> combustion (heat conversion)> heat medium water -> steam condensation heat after boiling -> heat -> Heat Conduction -> vacuum boiler water working principle: the use of water at low pressure characteristics of a low boiling point, rapid heating of the heat medium water sealed furnace body, the heat medium temperature steam generated by the boiling water, the steam condenses on the heat transfer tubes within the heat transfer tubes heating the cold water, to supply hot water purposes. Vacuum boiling point of water and the corresponding table: structural diagram of the degree of vacuum (Kpa) 0-31-54-70-81-89-94-97-99-101 boiling point of water (℃) 10090807060504030200 vacuum hot water boiler:

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