Vacuum hot water boiler is a kind of hot water boiler with stable operation and high safety factor. It is often used for heating and heating in office buildings, residential areas, shopping malls and other places with a large flow of people. Due to the superior performance of the vacuum hot water boiler, it has also been loved by many users, and the frequency of use is increasing year by year. What issues should be paid attention to when selecting the vacuum hot water boiler? Let Zhengzhou Fangkuai Boiler Factory provide you with guidance and help.

1. Fuel selection: The vacuum hot water boiler can use natural gas, liquefied petroleum gas, etc. as fuel. Zhengzhou Fangkuai Boiler Factory will advise users to give priority to the use of natural gas and recycled oil, which can be used for both oil and natural gas (special order).

2. Load selection: The heating load selection of any building cannot be budgeted. It has a great relationship with building insulation and indoor use, but it has a very small relationship with building area.

3. Pressure selection: warm water, sanitary hot water pressure specification, pressure 0.8 MPa. High pressure device is recommended for parts with pressure of 0.81 ~ 1.2 MPa. If the pressure is 1.21 ~ 1.6 MPa, fragmented and comprehensive elements should be based on economic and technical analysis. Use the ultra-high pressure unit type, or stop the secondary heat exchange. If the pressure is above 1.6MPa, it is recommended to design two heat exchangers.

4. Installation location: The vacuum hot water boiler unit runs smoothly, with almost no vibration, and low music. The location of the machine room is very convenient. The basement, air, floor, and roof can be used as a machine room. For high-rise buildings, to reduce unit pressure, the room should be in the middle or at the top.

5. Ventilation environment: Poor ventilation will cause humidity and corrosion in the machine room. The ventilation machine room should be more than twice an hour, and the air consumed per unit is based on the air budget of 15m3 of fuel consumption of 10,000 calories.

The inside of the vacuum hot water boiler is a vacuum negative pressure environment, and there is basically no risk of outward explosion. The safety factor is very high. It is mostly used in hotels, residential quarters, office buildings, shopping malls and other environments for heating and sanitary hot water. Heating and other fields. Since the pressure in the boiler body is required to always be in vacuum when working, the heat exchange rate and utilization rate are high, and the user frequency is also high.

However, Zhengzhou Fangkuai Boiler Factory still wants to remind you that in order to better protect the boiler body and ensure the safe use of the boiler, the following aspects should be paid attention to during the operation of the vacuum hot water boiler:

1. Before starting the operation of the vacuum hot water boiler, the gas pressure of the boiler must be checked to ensure that its pressure is normal. If the static pressure is only 6 kPa, it should be noted that only a small fire can be maintained, because under a pressure of 6 kPa, the large fire may be extinguished due to insufficient pressure.

2. When using a vacuum hot water boiler, pay attention to the pressure and temperature of the domestic hot water and heating medium water, and make sure that the pipeline valve is opened to prevent the inlet and outlet water valves of any heat transfer branch from closing, because during use, due to thermal expansion And the principle of cold shrinkage, the pressure will far exceed the rated working range. This caused major accidents such as pipeline explosions and boiler scrap.

3. Under various normal working conditions of the vacuum hot water boiler, pay attention to the operation of the water pump, carefully observe the outlet pressure of the water pump and its sound, and turn on the boiler control power supply when it works normally.

4. When the vacuum hot water boiler is running, pay attention to setting the relevant parameters on the display screen to ensure that the middle water temperature, the outlet water control temperature, the flame conversion temperature and the temperature difference can meet the operating requirements.

At present, there are many vacuum hot water boilers on the market that use gas oil as the main fuel. This is determined by combining my country's existing environmental protection standards and the national fuel distribution and utilization. Of course, the specific type of fuel to be used depends on the location of the company. To decide on the situation. Many users who need to purchase vacuum hot water boilers do not know much about the various boiler brands on the market, and do not know which boiler manufacturer has better product quality. Let Zhengzhou Fangkuai Boiler Factory guide you how to choose.

For companies that need to purchase vacuum hot water boilers, to judge a boiler plant and product quality, it is necessary to inspect the comprehensive strength of the manufacturer, product manufacturing technology, after-sales service system and other aspects in order to purchase high-quality boiler equipment.

Fuel gas vacuum hot water boilers are currently mainly used in domestic hot water and heating fields. They are more suitable for hotels, shopping malls, office buildings, bathing centers and other places, because for these places, large boiler equipment will be affected by the site Restricted and unable to enter the arena.

Recently, a chemical company consulted with the Zhengzhou Fangkuai boiler manufacturer to purchase a gas oil vacuum hot water boiler. However, the boiler model and price are not very clear, and the boiler manufacturer needs to calculate it. In this regard, the technicians of Zhengzhou Fangkuai Boiler Factory made a detailed understanding of the company’s situation and concluded that it is sufficient for the company to use a vacuum hot water boiler with an output of 2 tons. The current boiler market of this model The price ranges from 120,000 to 160,000 yuan.

There is no need to report for inspection when using vacuum hot water boilers, which can save a lot of time for enterprises and can improve production efficiency after quick commissioning. Therefore, there are still many enterprises using vacuum hot water boilers. The vacuum hot water boilers of Zhengzhou Fangkuai Boiler Factory are divided into ordinary vacuum and condensing vacuum models. The two types of boilers have certain differences in operating efficiency. The operating efficiency of condensing vacuum hot water boilers is higher than that of ordinary vacuum hot water boilers. Around 5-8%, more cost-effective.

Many users who need to use vacuum hot water boilers attach great importance to the selection of boilers. The solution given by Zhengzhou Fangkuai Boiler Factory is that if you want to calculate the suitable tonnage vacuum hot water boiler for your own plant, you need to have a detailed understanding of the amount of hot water required by your own plant. Recently, a company asked Fangkuai Boiler about the need to purchase a vacuum hot water boiler, but did not know the specific tonnage. After calculating the data of the manufacturer, Fangkuai Boiler concluded that the plant used A 1400KW (that is, 2 tons) vacuum hot water boiler is enough. The market price of this model of vacuum hot water boiler ranges from RMB 180,000 to RMB 250,000.

Some users who purchase boilers are not very good at boiler installation and commissioning, and often hope that the boiler manufacturer can directly be responsible for the transportation, installation and commissioning of the boiler. So, can the boiler manufacturer be responsible for installing the boiler? Let Zhengzhou Fangkuai Boiler Factory answer for you.

1. Boiler manufacturing enterprises can install boilers. Because according to the "Regulations for the Supervision and Management of Boiler Installation and Renovation Units" Boiler manufacturing enterprises that have obtained the boiler manufacturing license can transform the boilers manufactured by the enterprise and install the whole (assembled) factory-made boilers manufactured by the enterprise without obtaining a separate license.

2. The boiler is a kind of energy conversion equipment. The energy input to the boiler is chemical energy and electric energy in the fuel, and the boiler outputs steam, high temperature water or organic heat carrier with certain thermal energy. The original meaning of pot refers to a water container heated on a fire, and a furnace refers to a place where fuel is burned. A boiler includes two parts: a pot and a furnace. The hot water or steam produced in the boiler can directly provide the required heat energy for industrial production and people's lives, and can also be converted into mechanical energy by a steam power device, or converted into electrical energy by a generator. Boilers that provide hot water are called hot water boilers, which are mainly used in daily life, but there are also a few applications in industrial production. The boiler that produces steam is called a steam boiler, often abbreviated as a boiler, and is mostly used in thermal power stations, ships, locomotives, and industrial and mining enterprises.

3. The boiler is carried out in two parts of "boiler" and "furnace" at the same time. After the water enters the boiler, the heating surface of the boiler in the steam-water system transfers the absorbed heat to the water, so that the water is heated into hot water with a certain temperature and pressure or steam. Be led to the application. In the combustion equipment part, the combustion of fuel continuously releases heat, and the high-temperature flue gas generated by the combustion transfers the heat to the heating surface of the boiler through the heat transmission, and the temperature of itself is gradually reduced, and finally discharged by the chimney.

For users who need to use a vacuum hot water boiler, the selection of the boiler is a very critical step, which is related to the use and maintenance of the boiler in the later period. If you buy inappropriate boiler equipment, you will not only need to purchase a second time. This leads to increased input costs and delays the project construction period. So, what issues should be paid attention to when selecting a vacuum hot water boiler? Let Zhengzhou Fangkuai Boiler Factory tell you the answer.

1. Fuel selection for vacuum hot water boiler:
       Fuels such as natural gas and liquefied petroleum gas are common fuels used in vacuum hot water boilers. Zhengzhou Fangkuai Boiler Factory recommends that users give priority to natural gas and regenerated oil, which can be used for both petroleum and natural gas (special order).

2. Load selection for vacuum hot water boiler:
       This requires a certain understanding of the application field of vacuum hot water boilers, because the heating load selection of any building cannot be budgeted. This data has a great relationship with building insulation and indoor use, but it has a small relationship with the building area. relationship.

3. For the pressure selection of the vacuum hot water boiler:
       If you want the vacuum hot water boiler to output warm water and sanitary hot water, the pressure of the boiler is 0.8 MPa, and the pressure of the parts is 0.81~1.2 MPa, and the parts are recommended to use high-pressure devices. If the pressure is 1.21 ~ 1.6 MPa, the fragmented and comprehensive element should be based on economic and technical analysis to use the ultra-high pressure unit type, or stop the secondary heat exchange. If the pressure is above 1.6MPa, it is recommended to design two heat exchangers for the vacuum hot water boiler.

4. For the location selection of the vacuum hot water boiler:
       The unit of the vacuum hot water boiler runs smoothly, with almost no vibration and low music. The location of the machine room is very convenient. The basement, air, floor, and roof can be used as a machine room. If it is used in a high-rise building, in order to reduce the unit pressure, the boiler room should be set in the middle or the top of the floor.

Vacuum hot water boiler is a kind of boiler equipment that forms a negative pressure vacuum environment in a closed boiler body to quickly boil water and heat high temperature water for heating and heating. It is mostly used in hotels, residential quarters, office buildings, Shopping malls and other heating, sanitary hot water heating fields. The pressure in the boiler body is always under vacuum when working, so the heat exchange rate and utilization rate are high, and it has also been recognized and trusted by many users. However, Zhengzhou Fangkuai Boiler Factory suggests that in order to better protect the boiler body and ensure the safe use of the boiler, the following issues should be paid attention to during the operation of the vacuum hot water boiler:

1. Before each operation of the vacuum hot water boiler, the gas pressure of the boiler must be checked to ensure that its pressure is normal. If the static pressure is only 6 kPa, it should be noted that only a small fire can be maintained, because at a pressure of 6 kPa, the boiler running on a large fire may cause flameout due to insufficient pressure.

2. When using a vacuum hot water boiler, pay attention to the pressure and temperature of the domestic hot water and heating medium water, and make sure that the pipeline valve is opened to prevent the inlet and outlet water valves of any heat transfer branch from closing, because during use, due to thermal expansion And the principle of cold shrinkage, the pressure will far exceed the rated working range. This caused major accidents such as pipeline explosions and boiler scrap.

3. Under various normal working conditions of the vacuum hot water boiler, pay attention to the operation of the water pump, carefully observe the outlet pressure of the water pump and its sound, and turn on the boiler control power supply when it works normally.

4. When the vacuum hot water boiler is in operation, pay attention to setting the relevant parameters on the display screen to ensure that the middle water temperature, the outlet water control temperature, the flame conversion temperature and the temperature difference can meet the operating requirements.

At present, most of the fuel for vacuum boilers is gas oil, which is mainly determined by the current environmental protection policy and the global fuel supply situation. When selecting the fuel gas vacuum hot water boiler, many users are not sure which boiler manufacturer should cooperate with or which boiler manufacturer produces better quality oil and gas vacuum hot water boiler in the face of many boiler manufacturers in the market. . Regarding how to judge the boiler, Zhengzhou Fangkuai Boiler Factory has unique insights.

First of all, when purchasing oil-fired gas vacuum hot water boilers, you must compare various manufacturers, so that you can choose the boiler products that suit your company.

Secondly, for the selection of boiler manufacturers, we must start with the comprehensive strength of the manufacturer, after-sales service, product quality, user reputation and other aspects. Through these conditions, we can have some more detailed understanding of the boiler manufacturer, which will help us better purchase To the real high-quality fuel gas vacuum hot water boiler.

Recently, a company was recommended by a partner company to Zhengzhou Fangkuai Boiler, ready to purchase a gas oil-fired vacuum hot water boiler, but the specific model and price of the boiler are not well understood. In this regard, the technicians of Zhengzhou Fangkuai Boiler, after understanding and mastering the detailed requirements of the company, customized a set of boiler systemized solutions for it, indicating that the company uses a 1.4MW, or 2 tons, fuel gas vacuum. The hot water boiler is sufficient. Currently, the price of this model of boiler ranges from 120,000 to 180,000.

Vacuum hot water boilers are very helpful in the field of heating and heating, and solve the problem of central heating in many cities in the north and south of my country in winter. For heating enterprises, the selection of vacuum hot water boilers is a very important task. What parameter information needs to be mastered in order to make the correct selection? Let Zhengzhou Fangkuai Boiler Factory tell you the answer.

In fact, the selection of vacuum hot water boilers is nothing more than the demand for the parameter of hot water. For companies that need to use hot water boilers, if they want to calculate the vacuum hot water boilers that are suitable for them, they need to meet their needs. Detailed understanding of the boiler hot water volume. Recently, a heating company consulted Zhengzhou Fangkuai Boiler Factory about the need to purchase a vacuum hot water boiler, but it did not know the specific tonnage of the boiler very well. The technical engineer of Zhengzhou Fangkuai Boiler, after calculating the data of the company, came to the conclusion that the company can use a 1400KW vacuum hot water boiler (that is, 2 tons). The market price of this tonnage vacuum hot water boiler In the range of 14-20 million.

Of course, when purchasing vacuum hot water boilers, many companies especially want to know the ranking of the comprehensive strength of vacuum hot water boiler manufacturers. In this way, they will also have certain reference value for their own selection of boiler manufacturers. Before purchasing boilers, you can search for some boiler manufacturers through the Internet, which can be used as a reference standard for manufacturers when purchasing boilers.

Vacuum hot water boiler, also known as vacuum phase change boiler, is to form a negative pressure vacuum environment in the closed furnace body, so that the internal pressure of the boiler is lower than the normal pressure, so that the water is heated quickly, and the safety factor is very high, and no explosion accidents will occur. In recent years, it has been loved by many users in the heating field. So, what are the advantages of choosing a vacuum hot water boiler as heating equipment? Let Zhengzhou Fangkuai Boiler Factory do it for you one by one.

1. The heat-medium water in the vacuum state of negative pressure inside the vacuum hot water boiler is heated by burning heat-medium water or any other method, and then through the heat-medium water evaporation and condensation heat exchanger to heat the required heating water. Vacuum hot water boiler does not need to accept the supervision and inspection of special equipment by the safety supervision agency of the boiler and pressure vessel quality and technical supervision department, and it has developed rapidly in recent years.

2. The vacuum hot water boiler can be used for multiple purposes. The boiler can provide heating water, domestic hot water, swimming pool heating and other aspects.

3. The service life of the vacuum hot water boiler is very long, the design life is more than 20 years, and it can be placed on the basement and roof. The cost of infrastructure is low and it is not restricted by the relevant state departments.

4. The vacuum hot water boiler has a condensing recovery device, the operating thermal efficiency is as high as 107%, and the operating cost is very low, saving users a lot of fuel costs.

5. Vacuum hot water boilers are more than 40% smaller than ordinary boilers. The boilers can be modularized and connected in parallel, which can operate more effectively and reasonably.

6. The vacuum hot water boiler has a high degree of automation and does not require special management, which saves users the cost of labor.

Vacuum hot water boiler is a kind of boiler equipment that uses the characteristics of low-pressure and low-boiling water to quickly heat the sealed furnace filled with heating medium water to output high-temperature hot water. The boiling of hot water evaporates high-temperature water vapor, and the water vapor condenses on the heat transfer tube to heat the cold water in the heat transfer tube. Supply hot water. What are the characteristics of the vacuum hot water boiler when it is operated? Let Zhengzhou Fangkuai boiler manufacturer tell you the answer.

1. The inside of the vacuum hot water boiler is under negative pressure. If you follow the operating instructions, there will never be an explosion, and the safety is very good.

2. The internal design of the vacuum hot water boiler is reasonable, the bearing steel has high temperature and high separation, which can extend the service life to more than 2-3 times. The design life is up to 25 years.

3. The overall design of the vacuum hot water boiler is very scientific and reasonable, and the layout is compact. Compared with ordinary hot water boilers, the floor space is saved by about 50%. There is basically no requirement for the boiler house, and the infrastructure cost is very low.

4. The vacuum hot water boiler exchanges heat in the machine body. The operating efficiency of the whole machine is as high as 107%. It can provide 80℃ hot water within 2 to 3 minutes after startup, which greatly shortens the preheating period and reduces energy consumption.

5. The vacuum hot water boiler adopts automatic control, intelligent, unmanned or remote network control; the boiler has a built-in stainless steel heat exchanger, and the output water quality is free of any pollution.

6. The vacuum hot water boiler adopts the direct heating mode. Compared with indirect heating (boiler + external heat exchanger + circulating water pump + material + installation cost), it can save at least 30-40% of installation cost. In addition, the vacuum hot water boiler has high operating efficiency, fast heating, and good heat exchange, which can save fuel costs by 20-30%.

Winter is the peak period for the use of vacuum hot water boilers for heating. This type of boiler has the advantages of safety, stable operation and no noise, and can be used with confidence in places with a large flow of people; and Fangkuai boilers have also made technology for this type of boiler. Breakthrough and optimization, the boiler's operating efficiency is as high as 107%, the pollutant emission is less than 30mg/m³, it integrates energy saving and environmental protection, and the cost performance is very high. However, what issues should you pay attention to when you use the vacuum hot water boiler?

1. In vacuum hot water boiler equipment, the maximum temperature of hot water under negative pressure is about 93°C, and the maximum temperature of outlet water is about 80°C. Therefore, vacuum hot water boilers are commonly used in the field of civil heating and heating. The outlet water temperature of the boiler has higher requirements, and other types of boilers with higher discharge temperature can be selected.

2. The diameter of the heat exchanger of the vacuum hot water boiler is small, generally about 10mm. Although there is no fouling in the pipe, in order to prevent the system from clogging by impurities, a polluter or filter should be installed before the inlet of the boiler return pipe, and regular inspections and inspections should be carried out. Cleaning and maintenance.

3. When designing the vacuum hot water boiler structure, the boiler manufacturer will ensure that the working pressure of the system pressure can meet the requirements of the unit based on the system pressure, the parameters of the pressure unit and other parameters. During the installation and use of the boiler system, the pressure relief valve should be installed on the interface of the vacuum hot water boiler. The pressure set by the pressure relief valve must be less than the maximum allowable pressure of the device. The connection between the pressure relief valve and the unit It should not be assembled with the valve.