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what do you know about vacuum hot water boilers?

1. What is a vacuum hot water boiler? Answer: so-called vacuum hot water boiler, also called vacuum phase change hot water boiler. When the boiler is working normally, the inner medium pressure of the boiler is lower than the atmospheric pressure, and the cold water is heated by phase change heat. Vacuum sealing inside the body of vacuum hot water boiler, negative pressure combustion of heat medium water, steam exchange between steam and heat exchanger, high heat efficiency, one-time treatment and perfusion of heat medium water in factory, no need to replenish water in operation. The unique design of vacuum hot water boiler has formed the characteristics of safety, stability and so on.

2. The composition and structure principle of vacuum Hot Water Boiler? Answer: the furnace body of a vacuum hot water boiler is divided into two parts: the upper part is a vacuum chamber (negative pressure steam chamber), and a tubular steam-water heat exchanger is installed in the space to heat the circulating water flowing through the heat exchanger. Operation principle: during the operation of vacuum hot water boiler, the heat medium water inside the furnace under negative pressure of vacuum absorbs the heat energy released from fuel combustion, boiling vaporizes into low temperature steam, and the low temperature steam rises to meet the system circulating water in stainless steel heat exchanger. Heating circulating water to the user for heating or sanitary hot water. The water vapor itself is cooled and condensed into droplets falling onto the surface of the heat medium and then heated again, thus completing the whole cycle. Heat medium water The cycle of "boiling = evaporation = condensation = heat medium water" is constantly carried out in the enclosed body, so there is no need to replenish condensate water and there is no danger of empty burning. The condensation heat transfer coefficient of steam-water condensation in vacuum hot water boiler is the highest in all heat transfer conditions.

3. What is a vacuum? Answer: vacuum state does not mean absolute pressure is zero, as long as lower than external pressure, can be called "vacuum". For example: vacuum boiler operating inside the shell is debugged as vacuum and maintained between-375pxHg--76mmHg.

4. What is vacuum? A: vacuum refers to the degree of gas rarity in vacuum, usually expressed as "high vacuum" and "low vacuum". High vacuum means good vacuum, low vacuum means poor vacuum. The value of vacuum degree indicates that the actual value of system pressure is lower than that of atmospheric pressure, that is, vacuum degree = atmospheric pressure-absolute pressure. International standard unit of vacuum: Pa (Pa).

5. Why is heat medium water in vacuum hot water boiler heated in vacuum? Answer: the boiling temperature of water is different under different pressures. Under an atmospheric pressure (0.1Mpa), the boiling temperature of water is 100 ℃, while the boiling temperature of water is 4 ℃ under 0.8Kpa pressure. The vacuum hot water boiler works within the pressure range of vacuum degree 2.67Kpa~66.6 Kpa, and the corresponding saturation temperature is 15 ℃ ~ 85 ℃. Therefore, in vacuum, heat medium water is easy to boil and vaporize.

6. The origin of vacuum hot water boiler? A: the basic principle of vacuum hot water boiler was born in 1972 at Zurich University of Technology. In 1975, Japan's TAKUMA Company developed a vacuum hot water boiler on the basis of the principle, which was patented for invention, and was gradually popularized all over the world. This technology has been developed and developed by Korean enterprises, and South Korean TAKUMA, has appeared one after another.

Large bath, bath with hot water boiler as what are the problems, baths and bath are all civilian areas, mainly by providing heating and hot water to the majority of people take a bath for heating, under normal circumstances, there are three main ways of heating their Zhang situations: 1, the traditional coal-fired steam boilers coupled with heat exchangers this method has also been widely used before the second five, but as residents increasingly high demand for this piece environment has gradually withdraw from the stage of history coal-fired boiler currently in the State Department regulations already belong to one of the forced removal and renovation projects, so this method is not suitable for urban populations. 2, the use of biomass pressure hot water boiler utilizing biomass energy field is currently the best known way, the low cost of the boiler, the fuel in the fuel cost is lowest of all, but because of the limitations of raw materials must be equipped with fuel special fireman job, and because biomass fuels, after all, just a lot of places can not be fully developed so popular is the future direction of development. 3, gas-fired hot water boiler vacuum vacuum hot water boiler is the new trend in hotels heating sector. Vacuum hot water boiler's heat exchanger is built, it can be directly required hot water temperature. So vacuum boiler for heating and sanitary hot water are no secondary heat exchanger. If for sanitary hot water, then only need to install a hot water tank, and then directly set the heating water temperature can be directly used for water heating. Vacuum hot water boiler for heating and advantages of the hotel Hotel sanitary hot water supply are: ① security: Vacuum negative pressure boiler operation, there is no risk of explosion, very safe, is expressly provided free national supervisory inspection of boilers. ② system is simple: direct water, and heat exchangers can be built multiple, simultaneous heating and sanitary hot water supply. Efficient ③: a high thermal efficiency, thermal efficiency is generally over 94%.

Vacuum boiler heating or heating up can how much area in recent years many customers are using the vacuum boiler, vacuum boiler technical parameters but many people do not understand, a lot of customers for understanding the vacuum still in the boiler will never explode, and does not require inspection, audit, and other steps cumbersome formalities, so Xiao Bian by finishing technical information vacuum boiler Henan faster this way large enterprises, made out some simple statistics, for everyone to share case: belongs to the negative pressure boiler vacuum boiler, the main way for heating is provided by hot water heating hot water or heating medium, there is no appearance of a vacuum steam boiler, so many online fictional vacuum steam boilers are Bluff, vacuum boiler can only be used for heating or hot water, vacuum boiler is divided into different types according to their rated thermal power, in general, is 0.35MW ~ 7MW range, it can be customized according to customer needs, and follow the heating area is calculated primarily by the size of the heating area to match the model, let's give you an example: such as the need for 5,000 square meters Space heating, heating area formula under normal circumstances is 4000-6000 square meters of area equal to 1 ton vacuum heating boiler, if the boiler pressure is also need to consider the issue of pressure, but vacuum boiler need not consider this point, so we came out of the equation is based on the heating area can provide customers with boiler models for customers.

Food is food industry is human life industry, but also an ancient and eternal evergreen industry. Industrial steam boiler as an integral part of the chain, is mainly used for processing of distillation, extraction, sterilizing, drying, curing and other processes. Anqing City, Anhui Province is located in the Want Want Foods Co., Ltd. mainly engaged in all kinds of puffed food processing and manufacturing and sale of steam boiler steam delivered directly or indirectly in contact with food, thus requiring the steam quality is very high. Due to expanding production needs, Want Want Foods in urgent need of a boiler plant to provide high-quality steam. After a comprehensive understanding of the boiler industry, determined to cooperate with the fast boiler. Want fast square perennial cooperation with the country's food company, it has considerable experience of cooperation. By understanding the needs of the Want Want food production, providing a whole 10 tons of steam condensing gas steam boiler (WNS10-1.25-Y.Q).

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