Note the use of the vacuum hot water vacuum boiler: vacuum boiler at work because their internal pressure of the furnace is always in a vacuum, so the higher heat exchange rate and utilization. At the same time due to the unique design, so if the outside when the pressure exceeds atmospheric pressure in the course of the next, then the unit will automatically cut the power, and when there is a failure of the water level will alarm, so as to improve the professional vacuum boiler safety.
Steam boilers are much more widely used than hot water boilers. Hot water boilers are mainly used for heating and providing hot water supply, while steam boilers cover all industries such as industrial and power generation. What are the requirements for boiler boilers for boiler boilers? Undoubtedly safe, stable, efficient, long service life, cost savings, etc., however, these requirements are indirectly or directly related to steam quality. The quality of steam is critical because it affects the stability, reliability and economy of the system, as well as product quality, production power and energy consumption. If the steam boiler user does not pay attention to this, it will definitely lead to a series of follow-up problems for the boiler.
1) Cleanliness: There are rust and carbonate deposits in the steam pipeline, and there may be slag and sealant fragments remaining in the equipment. These impurities may cause jamming and damage to the valves and equipment, and also increase the wear of the pipeline. The way to improve cleanliness is to install a pipe filter, and the filter should be horizontal.
2) Dryness: Incorrect water treatment of boiler hydration, unreasonable boiler level control, and short-term high peak load and other factors will cause the boiler to co-exit the boiler, so that the boiler outlet carries boiler water. When steam is moving in the pipeline, heat dissipation from the pipeline condenses a portion of the steam, adding condensate from the pipeline. The chemical substances and other impurities carried in the condensed water will accumulate on the surface of the heat exchange equipment, affecting the power of the heat exchange equipment, and the accumulated impurities will be fouled on the metal surface of the equipment, resulting in uneven heating of the metal surface and shortened life. In addition, the presence of moisture in the vapor reduces the transpiration of the steam, adding steam consumption; the moisture in the steam will increase the thickness of the water film measured by the heat of the heat transfer, and the rated heat transfer resistance occurs. The addition of a steam separator is a useful way to improve steam dryness, and an efficient steam separator can increase steam dryness to 98%.
3) Purity: There is air in the steam system because the steam that is generated by the boiler still inevitably contains a small amount of air, and there are also air when the pipes and equipment are started. When the system and equipment are shut down, the air is taken in due to the internal vacuum. The air has a very low thermal conductivity and is a poor conductor for heating. The inclusion of air in the steam system will reduce the production capacity of the steam equipment and will also increase the corrosion of pipes, valves and equipment. The most useful way to eliminate non-condensable gases such as air in a steam system and thereby improve the purity of the steam is to install an automatic air venting device in the system.
4) Pressure/temperature stability: In order to ensure process heating requirements, the steam pressure at the steam point should reach the demand value. Together, the steam pressure should not be too high, otherwise steam consumption will be added.
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Vacuum hot water hot water vacuum boiler small science in recent years, a type known as vacuum hot water boiler boiler in the market caused no small wave, then vacuum hot water boiler is what kind of boiler it, to the side of a small fast Come prepared for your eleven. The basic principle of vacuum hot water boiler was born in 1972, University of Zurich, by forming a negative pressure in the vacuum furnace body closed, the heat medium is filled in advance in the body of water, heating medium water heated by combustion or other means, the heat medium water by vaporization and liquefaction of absorbing and releasing heat to the heat pipe heat exchanger, to achieve the supply of hot water. Oil, natural gas, gas, electricity -> combustion (heat conversion) -> heating medium water -> steam condensing heat exchanger after boiling -> exchanger -> Heat Conduction -> water, "vacuum" refers to an automatic vacuum apparatus and the pressure inside the boiler is lower than the outside atmospheric pressure is low with water a low boiling point characteristic, rapid heating of the heat medium water, increase the heat transfer rate. Since the boiler internal pressure is lower than the outside world, it does not appear the boiler exploded, burning deformation and other adverse conditions. Fast Multi Party conventional vacuum boiler type, as fully condensed in vacuo premix hot water boiler, low nitrogen vacuum hot water boiler is coupled, solve the needs of different users in different sectors. By using advanced FGR, such as premix low NOx combustion technology, ultra-low nitrogen oxide emissions, environmental protection is very friendly. While adding condensing technology, making the boiler operating efficiency upgrade more than 10%, significant cost savings for businesses.
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