Product Description Basic introduction vacuum vacuum hot water boiler hot water boiler's full name is called vacuum phase transition boiler, pay attention to two terms, a vacuum, is a phase transition. Vacuum boiler is in a closed furnace to form a negative pressure inside the vacuum environment, the heat medium is filled in the body of water, heating water by combustion heat medium or otherwise, and then evaporated by the heat medium water condensed onto the heat exchanger, and then by a heat exchanger to heat the water to be heated. Vacuum boiler works: the use of water at low pressure low boiling characteristics, rapid heating furnace sealed body filled HTM water, so the water is boiling heat medium temperature evaporation of water vapor, water vapor condenses on the tubes heating cold water tubes within reach of hot water supply purposes. Classification vacuum boiler is mainly classified by fuel, which can be divided into vacuum electric heating boiler, oil boiler vacuum, gas steam boilers, coal-fired boilers and other vacuum. Advantages of vacuum hot water boiler 1. vacuum boiler expansion does not exist, explosion, the risk of rupture, safe and reliable. 2. The use of a machine that can also provide a boiler for heating water, domestic hot water, pool heating. 3. The design life of more than 20 years, can be placed in the basement and roof, the state authorities are not restricted. 4. efficient and cost. 5. No scaling, corrosion and other phenomena. 6. Small size than ordinary boilers. Can be carried out in parallel modular, more efficient and reasonable operation of the boiler. Can be opened only when a willfully without nominal heat. 7. A high degree of automation, building automation connection, no management. Even guarded, guards do not need an operating permit. Simple training. 8. vacuum boiler is slowly being accepted by all, mainly for civilian use, such as hotels, residential, office, bath centers, schools, shopping malls and other places. Described a power vacuum boiler, electric vacuum hot water boiler with corrosion, scaling, long life and other advantages. 2, since the electric vacuum hot water boiler is the atmosphere inside a closed whole, and thus at run time, the intermediate medium oxygen precipitation in water, is discharged outside the electric vacuum hot water boiler, the long-term does not occur in a vacuum hot water boiler oxidation corrosion. 3, electric vacuum hot water boiler only once added a small amount of heat medium water, the runtime does not rise, so the internal electric vacuum hot water boiler fouling does not occur. Increase the life of the boiler used is generally 1.5 to 2 times boiler life. 4, electric vacuum hot water boiler heat exchanger made of stainless steel tube manufacturing section, corrosion resistance, the design life of more than 15 years. 5, electric vacuum hot water boiler and reliable quality, reasonable price and perfect after-sales service, praised by users. Fuel (gas) boiler described a vacuum, vacuum hot water units always run under negative pressure, never inflate the risk of explosion, atmospheric and pressurized boiler has unmatched security and reliability. 2, built-in stainless steel heat exchanger, heat transfer efficiency, clean water. 3, built-rope smoke tube taped to increase heat transfer effect, make the structure more compact. 4, imported burner, combustion efficiency, noise, low emissions and meet the national requirements for a class areas. 5, the overall use of a square structure, the overall coating, compact appearance. 6, smoke tube equipped with a screw spoiler, enhanced heat transfer, improved boiler efficiency and reduce operating costs. 7, indirect heat: body negative pressure, the system pressure. 8 large furnace technology: effectively increase the unit radiation heating area, reducing NOX emissions. 9, boiler water with high water, make sure the furnace interior never scaling, corrosion. 10. boiler and heat exchanger integrated design saves space and greatly reduce the area. 11, the use of shell type three return all wet back structure, dynamics heating, heat sufficient. 12, the boiler low temperature operation under negative pressure, safe and reliable. 13, automatic control system, no special duty. 14, imported burner, combustion efficiency, noise, emissions low. 15, the unique pulse level detection circuit structure, reliable performance. 16, inlet and outlet temperature display function more easily grasp the boiler and system operating conditions. 17, using advanced multi-centrifugal glass wool insulation, less heat loss. The basic principle of the vacuum source vacuum hot water boiler hot water boiler was born in 1972 in Zurich Polytechnic University. 1975 Japan TAKUMA company Based on this principle has developed a vacuum hot water boiler and agreed patent, then gradually get promoted in the world, this technology has been developed with the development of Korean companies, Korea has emerged TAKUMA, China in the late 1980s Some manufacturers have developed a vacuum hot water boiler, but due to technical problems, the main boiler is unable to resolve the electrochemical reaction of immiscible gas leads to the problem of declining degree of vacuum in a vacuum sealed water and iron, has not been promoted . 1990s, South Korea's manufacturing enterprises to enter the Chinese market relatively late in 2003 about domestic boiler manufacturers began producing vacuum boiler. Thinking vacuum hot water boiler does not need to accept due to the vacuum boiler has special equipment inspection and other advantages, the rapid development in recent years, but the vacuum boiler manufacturer, intends to exaggerate the advantages of the unit, for its shortcomings, no one carefully analyzed. I engaged in boiler manufacturing for many years, has a wealth of production, manufacture, commissioning experience, after analysis and comparison, the main advantages and disadvantages are listed for your reference. Vacuum boiler main features: Create simple, no supervisory inspection, and atmospheric pressure, micro-pressure (combustion (electrical conversion heat) -> heat medium water -> after boiling steam condensing heat exchanger -> Heat Exchangers - > Thermal conductivity -> vacuum boiler water works: the use of water at low pressure characteristics of low boiling point, rapid heating furnace sealed body filled HTM water, so the water is boiling heat medium temperature evaporation of water vapor, water vapor heating the cold water condensed on the heat transfer tubes of the heat transfer tube, the supply of hot water to achieve the purpose of the standard sea level atmospheric pressure: 1.013 × 105Pa = 101.3KPa, boiling point of water at this time was 100 ℃; the higher the altitude, the lower the atmospheric pressure, boiling point. also reduced: Plateau: average elevation 4000m, atmospheric pressure 62KPa, boiling point of water at this time was 87 ℃; Everest: elevation up to 8848m, atmospheric pressure 33KPa, boiling point 71 ℃; vacuum boiler through vacuum, almost no air to form a low pressure environment, and then with water at low pressure (below atmospheric pressure) low-temperature steam generated by the boiling, condensation heat transfer by way of the principle of soda heat output to work with the boiling point of water corresponding to the degree of vacuum table: vacuum boiler normal operating temperature is below 90 ℃ vacuum of less than -30Kpa. htm vacuum in the boiler water is the result of high water deoxygenation, cleaning and other special treatment, filling in the factory once completed, when used in a closed loop inside the unit (vaporization → condensation → vaporization), does not increase, not decrease, in the life of the unit does not need to supplement or replace it. Therefore, the vacuum inside the boiler furnace never scaling, corrosion, normal life of up to 20 years, far beyond the ordinary hot water boiler for 10 years . about the life of the lower half of the structure of the vacuum structure of the vacuum hot water boiler vacuum boiler hot water boiler with ordinary boilers as the combustion chamber and heat transfer tubes; the bottom half with a hot medium, the upper part of the vacuum chamber, insert the U-shaped heat exchanger. Because the whole boiler is under negative pressure, it is absolutely safe. Hot media furnace, boiler operation in the whole process, no progress, no, no increase, not reduce, only enclosed in a vacuum chamber of the boiler, heat pipe heat exchanger between the boiler heat transfer thermal media furnace is completely deoxygenated pure water, no corrosion, no scale, so that the boiler life for 20 years. In summary The boiler has such properties, their natural tendency is to develop an alternative to traditional drum-type boilers and boiler shell; replacement rate in Japan up to 85 percent, South Korea has reached more than 43% of the vacuum hot water boiler. Features safe and reliable operation of vacuum pressure vacuum boiler hot water boiler during operation, the internal pressure of the furnace, always in -15CMHG - 76CMHG under vacuum, even if the U-shaped heat generated due to outside pressure leakage, or because operational failure can not exceed external atmospheric pressure situations, controllers, temperature control, overheat switch, vacuum pressure switch, will be automatically cut off. When the pressure to 0.025MPA, the pressure relief valve will open automatically, perform excretion pressure due to the Andean control vacuum boilers using advanced technology, all automatic water level fault whispered alarm, the system can automatically cut the power supply and inform the user, to avoid losses due to lack of water caused. Long life due to the vacuum inside the boiler vacuum boiler is a closed atmosphere overall, but at runtime, intermediate medium water oxygen precipitates out of the furnace, the furnace will not happen long-term oxygen corrosion, disposable adding a small amount of heat medium water, limited small amounts of calcium and magnesium ions, the runtime does not rise, so the internal boiler fouling does not occur, increasing the life of the boiler used is generally 1.5 to 2 times the life of the boiler. Section tube heat exchanger made of stainless steel, corrosion-resistant, the design life of more than 15 years. Vacuum boiler applicability due to the special design of the structure, which might be a multi-use, while providing multiple and different temperature difference of hot water, to meet the user central air conditioning, heating, sanitary hot water, high-level pools, hotels and other hot water supply of more than kinds of needs, but also provide process water for all types of industrial and mining enterprises. Because the insulation effect, imported burner for areas of less than 3000 meters of altitude. For negative pressure steam is heated by indirect heat burner accept. In the standard state -76CMHG vacuum degree of the vacuum chamber, with the improvement of the vapor pressure of the vacuum chamber decreases; and when the negative pressure of the steam temperature of the heat medium reaches 94 ℃, the vacuum reduction to -15CMHG, then, Vacuum switch to start and stop the operation of the combustion; as a heat exchanger to remove heat, reduce the heat medium and the steam temperature increase as the negative pressure, the vacuum switch is activated any time the burner thus reciprocally circulation, hot water supply and heating purposes. The degree of vacuum in the chamber furnace lowest -15CMHG, up to -76CMHG, always maintain the vacuum state, guarantee absolute security, media and thermal vacuum chamber steam temperature can be increased to 94 degrees Celsius, so the heating and hot water temperatures up to 80 degrees Celsius. Boiler and not subjected to any pressure vacuum chamber, and the heat exchanger can withstand the pressure. Therefore, from commissioning to run the whole process does not require inspection, no holder of Boilermakers. Energy efficient vacuum vacuum boiler hot water boiler technology with South Korea, the boiler operation in a vacuum, low boiling point, latent heat (latent heat) heat transfer, effectively improving the thermal efficiency, good heat transfer performance, three-pass wet back body design, effectively improve the radiation and convection heat transfer area, the thermal efficiency of the boiler up to 91%. Rich model of a machine with a vacuum boiler vertical, horizontal, oil, gas, water pipes, pipe tobacco users the freedom to choose a variety of models available, the heat exchanger and header separation, heating water, hot water load as needed switch at any time to meet user requirements for different heating water and clean water, and clean water to ensure stability. Compact and easy to install vacuum boiler modular design, high performance heat transfer components, the unit is small, so that the product is easy to transport, install, in a small space, multiple units can be used in parallel. Unique environmental features: high-performance vacuum boiler burner flame back structure design, fuel combustion, environmental indicators meet the state name entry tourist area emission standards. Eliminating the complicated approval procedures: vacuum boiler unit is running under vacuum, simplifying the approval, pressure vessels and other procedures examined, operating without permit. Adams describes the vacuum boiler boiler boiler manufacturing large vacuum is South Korea's technology and manufacturing to improve. The structure is made of high quality combustion heating section 20 # boiler tubes, arranged in thermal control, and it said heat pipe boiler pipe flow. The advantage is a large combustion chamber, the furnace down. The composition of the tube so that the heated area, small size, light weight, just like two-thirds of shell boilers. And water capacity is small, since the temperature fast, 5 to 8 minutes to reach the desired temperature. In the upper part of the design coupled with reasonable size even as one of the vacuum evaporation chamber, stable performance, reliable operation, not a rapid rise and fall of the problem. Due to the large space vacuum evaporation chamber, insert the U-shaped heat exchanger can be manufactured according to user needs. Vacuum boiler heat exchanger made of stainless steel, U-shaped bundles inserted vacuum evaporation chamber (flanged). Its advantages: easy removal, replacement is simple, easy to corrosion, durable. Use of advanced automation and control vacuum boiler controller (its chips imported from abroad). Automatic detection of boiler water temperature, water temperature. Automatic detection of the burner and furnace interior fault. Programmed to be controlled by the burning time. Correctly according to the load changes, automatically adjust for some fire burning fire Sec whole process, started by reducing the load caused by the change with the number of stops, so that the normal operation of the boiler, reducing the ON-OFF purged heat loss;