Boiler Knowledge

What is the operating principle of the ZWNS model ultra-low nitrogen vacuum hot water boiler?

The ZWNS model ultra-low nitrogen vacuum hot water boiler launched by Zhengzhou Fangkuai Boiler Factory is cheap, high in operating efficiency, and low in pollutant emissions. It is a very cost-effective heating hot water boiler. What is the operating principle of this type of boiler? How to achieve high-efficiency and low-emission operation? Let Zhengzhou Fangkuai Boiler Factory do it for you one by one.

Under normal atmospheric pressure, the boiling point of water is 100°C (1pa); when the pressure is lower than the normal pressure value, the boiling point of water will also be lower than 100°C. Generally speaking, when the atmospheric pressure is 0.7pa, the boiling point of water is 90 degrees, when the pressure is 0.3pa, the boiling point of water is 70 degrees, and when the pressure is 0.1pa, the boiling point of water is 40 degrees.

The ZWNS model ultra-low nitrogen vacuum hot water boiler forms a vacuum chamber after being pumped by vacuum. The combustion makes the heating medium water in the vacuum chamber boil and evaporate to produce negative pressure water vapor. The steam condenses outside the heat exchanger tube and heats the cold water in the tube for heating. Heating provides high-temperature hot water.

The heat medium water inside the ZWNS model ultra-low nitrogen vacuum hot water boiler is high-purity water that has undergone special treatments such as descaling and deoxidation. It is filled before the factory leaves the factory and is closed in the boiler (vaporization, condensation and vaporization) during use. Rather than increase or decrease, corrosion and rust will not occur after 20 years of continuous use.

In addition, the ZWNS model ultra-low nitrogen vacuum hot water boiler is also equipped with an ultra-low nitrogen burner that adopts advanced domestic and foreign technology. It can use oil and gas fuels. After operation, the pollutant emissions (especially nitrogen oxides) are lower than 30 mg/m3, it can still be used normally under my country's strict environmental policy, and it is not troubled by environmental protection issues.

2021-02-15 17:34:08

What are the characteristics of the condensing vacuum hot water boiler launched by Zhengzhou Fangkua

Condensing vacuum hot water boiler is the star product of Zhengzhou Fangkuai Boiler Factory. Because of its unique energy-saving and environmental protection characteristics, it is deeply loved by users, and the frequency of use is also increasing year by year. Many users are not very familiar with the condensing vacuum hot water boilers launched by Zhengzhou Fangkuai Boiler Factory. Today, I will explain some of the characteristics of this type of boiler.

1. The condensing vacuum hot water boiler operates under negative pressure, which saves energy and money
       The operation and stop state of the condensing vacuum hot water boiler is a negative pressure device, and its heat transfer method is indirect heating, which can provide high-pressure hot water for the application system. It is widely used in heating, air conditioning, sanitary hot water and process heating systems. The boiler adopts high-performance devices with a thermal efficiency of more than 107%, which not only saves fuel energy, but also reduces operating costs.

2. The operation of condensing vacuum hot water boiler is safe and reliable
       The condensing vacuum hot water boiler adopts simple connection heating, and the water temperature adjustment is widely used. The main heating structure is safe and reliable. The hot water adopts indirect heating, which can meet the requirements of low temperature water intake and no additional secondary heat exchange equipment, and meet the requirements of floor, air conditioning and heating. , Bathroom and other different temperature requirements, can be widely used.

3. The condensing vacuum hot water boiler has no oxygen corrosion, stable heat transfer performance and long service life
     The condensed combustion chamber of the condensing vacuum hot water boiler will not undergo low-temperature corrosion (the hot water temperature in the wall is stable in contact with the flue gas and it is not easy to reach the dew point temperature), and the working life of the host can reach more than 20 years. The boiler adopts intelligent automatic operation, multiple protections, convenient operation and safe use. In addition, the device adopts a humanized design program and has multiple automatic protection functions such as temperature control, overpressure, overtemperature, cut-off, mechanical safety, and explosion-proof.

2021-02-13 17:33:02

Compared with other types of boilers, what are the advantages of vacuum boilers?

At present, vacuum boilers are mainly used as heating equipment for modern intelligent homes, usually used in shopping malls, residential quarters, office buildings and other places to provide sanitary hot water heating and heating heating; compared with traditional heating boiler equipment, vacuum boilers The safety performance is higher, there is no danger of explosion, rupture and expansion, and it is more suitable for places with a large flow of people. So, what are the advantages of vacuum boilers compared with other types of boilers? Let Zhengzhou Fangkuai Boiler Factory tell you the answer.

1. The vacuum boiler has higher safety performance
       The vacuum boiler mainly adopts vacuum negative pressure operation, which is safe to use and will not burst or explode. At the same time, the vacuum boiler also successfully separated the high-pressure zone and high-temperature zone of the pressure steel plate of the vacuum boiler, preventing the high-temperature and high-pressure damage of the vacuum boiler, which played an important role in prolonging the service life of the equipment.

2. The vacuum boiler occupies a small area and is more convenient to install
       Compared with traditional boilers, the overall structure design of vacuum boilers is more scientific and reasonable, has the advantage of small footprint, and greatly saves the use area. The vacuum boiler can effectively shorten the preheating cycle and reduce energy waste through heat exchange in the furnace body.

3. The operation of the vacuum boiler is simpler and more convenient
       The vacuum boiler adopts a fully automatic and intelligent control method, which can realize intelligent unmanned operation when in use, and can also be remotely controlled by the network to control and use the equipment. At the same time, the vacuum boiler is equipped with a stainless steel heat exchanger, which is free of corrosion and water quality.

4. Low operating cost of vacuum boiler
       Vacuum boilers mainly take the form of indirect heating such as the external heat exchanger of the vacuum boiler boiler and the circulation pump, which can save a lot of total installation cost; and the vacuum boiler also has the characteristics of good rapid heating and high heat transfer efficiency, which can save fuel costs.

2021-02-11 17:32:39

What matters should be paid attention to when using the vacuum hot water boiler?

Vacuum hot water boiler is a common heating boiler, commonly used in hotels, shopping malls, residential buildings and other places, and provides a great help for normal heating in winter in cities in southern and northern my country. In recent years, the utilization rate of vacuum hot water boilers in various industries has gradually increased, and has been used and affirmed by many users. So, what advantages can the use of vacuum hot water boilers bring to users and friends? Let Zhengzhou Fangkuai Boiler Factory tell you the answer.

1. Vacuum hot water boiler has good energy saving effect
       The vacuum hot water boiler adopts excellent vacuum hot water boiler technology. The boiler operates in a vacuum state, has a low boiling point, and releases more latent heat after evaporation, thereby improving thermal efficiency; the boiler also has good heat transfer performance, and waste heat is installed in the exhaust gas channel The recovery device has a thermal efficiency of more than 107%, and the energy-saving effect is evident.

2. The vacuum hot water boiler has higher negative pressure operation safety
       The heat transfer medium inside the vacuum hot water boiler is always in a vacuum state, and there is no danger of expansion and explosion of the boiler body. The vacuum hot water boiler launched by Zhengzhou Fangkuai Boiler Factory also has an automatic protection device, which has incomparable safety compared with other boilers on the market.

3. The vacuum hot water boiler is anti-corrosion and non-scaling, and the service life is longer
       The heat exchanger of the vacuum hot water boiler is made of stainless steel. The heat medium water injected at a time will not corrode and scale in a high temperature environment. It can be used for 20 years. The service life of the boiler is almost two times the service life of an ordinary boiler. Times.

4. The vacuum hot water boiler is small in size and easier to install
       The vacuum hot water boiler adopts modular design and is equipped with high-performance heat transfer elements. The overall volume is reduced by more than 40%. It is very convenient for transportation and installation.

5. The use of vacuum hot water boiler is exempt from approval and the procedures are simple
       Since the vacuum hot water boiler operates under vacuum conditions, there is basically no safety hazard. The pressure-free special equipment is submitted for approval without annual review. The boiler operator does not need to hold a license, which can save the trouble of going through various procedures.

2021-02-09 17:30:36

What are the advantages of using a vacuum hot water boiler?

Vacuum hot water boiler is a common heating boiler, commonly used in hotels, shopping malls, residential buildings and other places, and provides a great help for normal heating in winter in cities in southern and northern my country. In recent years, the utilization rate of vacuum hot water boilers in various industries has gradually increased, and has been used and affirmed by many users. So, what advantages can the use of vacuum hot water boilers bring to users and friends? Let Zhengzhou Fangkuai Boiler Factory tell you the answer.

1. Vacuum hot water boiler has good energy saving effect
       The vacuum hot water boiler adopts excellent vacuum hot water boiler technology. The boiler operates in a vacuum state, has a low boiling point, and releases more latent heat after evaporation, thereby improving thermal efficiency; the boiler also has good heat transfer performance, and waste heat is installed in the exhaust gas channel The recovery device has a thermal efficiency of more than 107%, and the energy-saving effect is evident.

2. The vacuum hot water boiler has higher negative pressure operation safety
       The heat transfer medium inside the vacuum hot water boiler is always in a vacuum state, and there is no danger of expansion and explosion of the boiler body. The vacuum hot water boiler launched by Zhengzhou Fangkuai Boiler Factory also has an automatic protection device, which has incomparable safety compared with other boilers on the market.

3. The vacuum hot water boiler is anti-corrosion and non-scaling, and the service life is longer
       The heat exchanger of the vacuum hot water boiler is made of stainless steel. The heat medium water injected at a time will not corrode and scale in a high temperature environment. It can be used for 20 years. The service life of the boiler is almost two times the service life of an ordinary boiler. Times.

4. The vacuum hot water boiler is small in size and easier to install
       The vacuum hot water boiler adopts modular design and is equipped with high-performance heat transfer elements. The overall volume is reduced by more than 40%. It is very convenient for transportation and installation.

5. The use of vacuum hot water boiler is exempt from approval and the procedures are simple
       Since the vacuum hot water boiler operates under vacuum conditions, there is basically no safety hazard. The pressure-free special equipment is submitted for approval without annual review. The boiler operator does not need to hold a license, which can save the trouble of going through various procedures.

2021-02-07 17:29:40

What issues should be paid attention to when selecting the vacuum hot water boiler?

After the vacuum hot water boiler was developed and manufactured as early as the 1970s, after numerous optimizations by numerous technical engineers, it has now reached a good operational state, whether it is operating efficiency, service life, or overall quality. As a result, it has also been recognized and loved by more and more users. So, what aspects should be paid attention to when selecting the vacuum hot water boiler? Let Zhengzhou Fangkuai boiler manufacturer tell you the answer.

As with traditional boilers, when choosing a vacuum hot water boiler, in addition to understanding the boiler quality and procurement costs, you also need to pay attention to the following factors:

1. Fuel for vacuum hot water boiler
       When choosing a vacuum hot water boiler, the first thing to consider is what fuel to burn. At present, the vacuum hot water boiler can use both natural gas and light diesel. In combination with my country's current environmental protection policies and ease of use, Zhengzhou Fangkuai Boiler Factory recommends that the majority of enterprises use natural gas as the fuel for vacuum hot water boilers.

2. Evaporation capacity of vacuum hot water boiler
       "Evaporation capacity" can also be referred to as the boiler's evaporation load, that is, the steam or hot water required by the user. Before purchasing a vacuum hot water boiler, users and friends must have an understanding of the amount of hot water required by the boiler, so that the boiler with suitable capacity can be selected when the boiler is selected.

3. Heat exchanger of vacuum hot water boiler
       Compared with the traditional hot water boiler, the vacuum hot water boiler has a heat exchanger inserted inside, and the choice of heat exchanger needs to be determined according to the user's boiler. It is divided into three types of heat exchangers, which have different uses for different needs such as heating, sanitary hot water, and process hot water. You can choose the corresponding heat exchanger according to the needs of purchasing a vacuum hot water boiler.

2021-02-05 17:28:49

Advantages of using pressurized hot water boiler

Pressurized hot water boilers are one type of hot water boilers, just like atmospheric hot water boilers. The difference is the internal pressure of the two types of boilers. The interior of the normal pressure hot water boiler is at normal pressure, and its safety is relatively high. It is often used for heating and heating in places with a large flow of people. The inside of the pressurized hot water boiler is under pressure and can output hot water with a higher temperature than the normal pressure hot water boiler. What are the advantages of using a pressurized hot water boiler? Let Zhengzhou Fangkuai Boiler tell you the answer.

1. The price of pressurized hot water boiler is cheap
       The market price of pressurized hot water boiler itself is not high, and in recent years, the price of gas fuels such as natural gas has also decreased. Generally speaking, the cost-effectiveness of using pressurized hot water boiler is still very high. In addition, the utility model pressurized hot water boiler launched by Zhengzhou Fangkuai Boiler Factory has high durability, simple and convenient maintenance, and more economical use.

2. The operating efficiency of pressurized hot water boilers is relatively high
       The layout of the pressurized hot water boiler is designed as a three-pass wet structure. The heating surface is much more than that of the two-pass boiler. The heating surface is more active and the heating is more uniform. At the same time, a flue gas condensation recovery device is installed at the end of the boiler, which can be very good. Controlling the high temperature of the exhaust gas from the boiler greatly improves the efficiency of the boiler.

3. The operation of pressurized hot water boiler is safer and more stable
       The pressurized hot water boiler produced by Zhengzhou Fangkuai Boiler Factory will be equipped with high temperature alarm system, overpressure alarm system, water shortage alarm system, leak alarm system, fire protection system and other safety accessories when leaving the factory, making it safer and more stable to use.

4. The pressure-bearing hot water boiler has a small volume and a small floor area
       The pressurized hot water boiler of Zhengzhou Fangkuai Boiler Factory is equipped with a fast loading structure. The bottom of the whole boiler is made of high-rigidity materials. After several performance optimizations, the overall volume is small, which is more convenient for installation and transportation, and is more convenient for space. The requirements for use are not high, and it is suitable for use in various environments.

2021-02-03 17:26:40

What is the hourly gas consumption of a 2 ton gas hot water boiler?

Gas-fired hot water boilers are used in heating and heating fields in many situations, such as airports, hotels, residential buildings, shopping malls and other places have their presence. I believe that many users are very concerned about the hourly air consumption of the boiler when purchasing a hot water boiler. Zhengzhou Fangkuai Boiler Factory uses a 2 ton gas-fired hot water boiler as an example to explain the hourly gas consumption data of the boiler.

Under normal circumstances, the gas consumption of a gas-fired hot water boiler is affected by the layout of the heating surface, the water capacity, and the boiler heat preservation effect. There is a calculation formula for gas consumption: boiler gas consumption = pressure steam boiler output / thermal efficiency / natural gas heating value. Then the hourly gas consumption of a 2-ton gas-fired hot water boiler is about 130-150 cubic meters.

Many users do not understand why the difference in gas consumption is so large. This is mainly due to the influence of boiler thermal efficiency and natural gas heating value. The higher the boiler thermal efficiency, the lower the gas consumption; the higher the natural gas heating value, the gas consumption will also vary. It is lowered.

Therefore, when you use a gas-fired hot water boiler, if you want to reduce the gas consumption of the boiler, you can choose a boiler with high thermal efficiency and relatively better configuration, and choose to use natural gas with a higher calorific value as the fuel. The gas consumption will be reduced, so as to achieve the purpose of energy saving and money saving.

This also indicates that when purchasing a gas-fired hot water boiler, we must pay attention to the boiler’s operating cost in addition to the boiler’s procurement cost. The main factors affecting the operating cost are the boiler’s gas consumption, thermal efficiency, and heat preservation effect. And other factors.

2021-02-01 17:26:07

What are the good maintenance methods when using gas hot water boiler?

Gas-fired hot water boilers are used very frequently in our daily lives, and domestic heating and hot water supply are inseparable from it. For boiler equipment, good and effective maintenance can not only improve the use efficiency of gas-fired hot water boilers, but also extend its service life; then what effective methods should be used for maintenance?

1. Pressure maintenance
       This kind of maintenance method is suitable for boilers that are out of service but short-term maintenance does not exceed one week. You can drain all the water in the boiler first, then clean up the scale in the boiler in time, and re-add qualified softened water; use a warm fire to heat it regularly to keep the water temperature in the gas hot water boiler at ten degrees in summer In winter, it is guaranteed not to freeze; water must be supplied to the boiler regularly to keep the pressure in the boiler at a normal value to prevent air from entering the drum.

2. Wet maintenance
       This kind of maintenance method is suitable for gas-fired hot water boilers that have been shut down for no more than one month. After stopping the boiler, the boiler water should be drained according to the specified time, and the impurities inside should be cleaned up; secondly, all inlets and valves should be closed to completely separate it from the running boiler; and the prepared mercury should be used. Alkaline protection solution is put into the boiler; during the entire maintenance period, the oven should be regularly used with a low fire to keep the heated surface dry.

3. Dry maintenance
       Dry maintenance is suitable for gas-fired hot water boilers that have been shut down for a long time. It is also necessary to drain the water and remove impurities. Secondly, it must be completely isolated from the running boiler; use an appropriate amount of desiccant to absorb moisture in the boiler, and at the same time, the desiccant must not be in direct contact with the heated surface of the boiler ; Within one month, it should be checked whether the desiccant will cause corrosion in the boiler.

The above is the method of maintenance of gas-fired hot water boiler from three aspects summarized by the Zhengzhou Fangkuai boiler manufacturer. The boiler factory also emphasizes that regular inspections should be carried out when the boiler is used, and special attention should be paid to the corrosion of the boiler. Ignoring the problem of corrosion will have unpredictable serious consequences.

2021-01-31 17:48:56

What matters should be paid attention to during operation of condensing gas steam boiler?

The condensing gas-fired steam boiler is based on the gas-fired steam boiler with a new condensing device, which can increase the thermal efficiency of the boiler to more than 90% or even 98% and other very high data, saving users a lot of fuel costs. So, what matters should be paid attention to during the operation of condensing gas steam boiler? Let Zhengzhou Fangkuai Boiler Factory tell you the answer.

1. Correct cleaning and treatment of the boiler
       To achieve cleaning and disposal during the operation of condensing gas-fired steam boilers, we must first ensure that the efficacy and composition of the acid-washing slow-release agent can meet the corresponding use effects. Among the products designed by our country’s fully premixed condensing boiler manufacturers More need to ensure stable cleaning ability and better cleaning standards.
       Therefore, in the stable operation of professional condensing boilers in our country today, it is necessary to pay attention to the corrosion rate and corrosive materials and master reasonable testing methods to ensure that the cleaning of the circulating pipelines is smoother to ensure this kind of condensing boiler with more stable cleaning quality The stable use and dust removal effect.

2. Pay attention to the emergency warning and timely shutdown of the boiler
       In the daily use of condensing gas-fired steam boilers, only by ensuring that the corresponding dangerous failure factors are understood and the basic system is implemented in a timely manner can the condensing boiler play a better role, and the condensing boiler needs to pay more attention to its operation during operation. Existing dangerous problems, to ensure that its own disposal more satisfies the demands of daily applications and safe operation.

Zhengzhou Fangkuai boiler manufacturer reminds everyone that when using condensing gas-fired steam boilers, attention should be paid to the specific status of the daily operation of the equipment, and reasonable maintenance can avoid potential hazards that may be encountered as much as possible.

2021-01-29 17:47:59

What type of boiler is a condensing boiler, and what are its characteristics and advantages?

In recent years, condensing boilers have been favored by more and more users, and the frequency of use is also increasing year by year. It can be said that the advantages of condensing boilers are recognized by more and more users. However, for users who are new to boilers, condensing boilers are still a relatively novel type of boiler. Zhengzhou Fangkuai Boiler Factory will explain to you what type of boilers condensing boilers are, and what advantages they have.

The condensing boiler is based on an ordinary boiler with a new condensing heat exchange device. Through this device, the thermal efficiency of the boiler can be increased by more than 10%, reaching about 80%. The thermal efficiency of the condensing boiler of Zhengzhou Fangkuai Boiler Factory is even higher. Up to 98%.

In addition, the heat exchanger used by Zhengzhou Fangkuai Boiler Factory for the condensing boiler has relatively high material requirements and has a strong anti-corrosion ability. Since the discharged flue gas will contain a large amount of acid gas such as carbon dioxide, when the flue gas is converted into condensed water, it will have varying degrees of acidity. The long-term contact of traditional converters with condensed water will cause its surface to be corroded and scratched. The changeable condensing boiler converter is made of very stable materials, reducing component corrosion damage and Zengcheng use time.

The energy-saving benefit of the condensing boiler is also very high. The temperature of the low-temperature fluid inside the condensing boiler can reach a very low level, which is good for taking away and reducing the flue gas. The water vapor condensate also increases the display heat and latent heat that can be recovered There are also more and more, so the efficiency of the use of heat energy of the condensing boiler is also greater.

2021-01-27 17:44:41

How to prevent freezing of system pipes when the hot water boiler is heating in winter?

Winter is the peak period for using hot water boilers. Most northern cities use hot water boilers for heating and domestic water supply. However, Zhengzhou Fangkuai Boiler Factory found that many heating companies ignored the antifreeze work of boilers in winter, which led to failures and losses. Let’s talk about what protective measures should be taken when hot water boilers are used in winter.

For the hot water boiler system, the temperature is low in winter, the first thing to do is to prevent freezing of the entire system of the boiler. When the temperature of the water tank is low, pay attention to prevent freezing and cracking. Compared with outdoor boiler equipment, this also shows the boiler The advantage of the room.

Secondly, when the hot water boiler system or auxiliary equipment encounters a failure, it is necessary to stop the system, check and eliminate the problem, remove the water and wastewater in time, and open or close the valve according to the specification.

There is also the piping problem of the hot water boiler. It is necessary to do a good job of anti-freezing of the cold water pipe to avoid freezing, which affects the overall operation of the boiler system. In addition to regular inspections of the steam boiler, the operating conditions of the auxiliary equipment of the system should also be checked to ensure that the boiler can also provide heating and heating normally in winter.

2021-01-25 17:44:09

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