When purchasing gas boilers, boiler operating efficiency and service life are important reference indicators. However, to achieve the boiler operating efficiency and service life double standards, not only to choose a good quality gas boiler is so simple, it is also very important to carry out regular maintenance work in the later stage of boiler operation.

This is mainly due to differences in gas quality and water quality in different regions and different enterprises.

1. Gas quality difference
       Natural gas and liquefied petroleum gas are relatively pure gas sources. Artificial gas is relatively poor. It has many internal impurities, and its composition is not stable. The calorific value is low, which has a great impact on equipment operation and life.

2. Water quality differences
       China has a large land area, and there are large differences in water quality. The content of calcium and magnesium ions in water is different. Although the water used in boilers is treated softened water, it is not easy to scale, but softening only reduces the content of calcium and magnesium ions in tap water. And can not be completely eliminated. When water is heated, calcium, magnesium, iron ions, etc. in the water are rapidly combined with carbonate, silicate, hydroxide ions, etc. in the water to cause scales such as calcium carbonate and magnesium silicate, and are firmly attached thereto. The inner wall of the heat exchanger and the pipeline causes the heat exchange effect of the system to be deteriorated, the pipe diameter is reduced, the water flow is not smooth or blocked, and the energy consumption is increased, and the boiler water pump is clogged and the water flow is not smooth, and the fault is easy to occur. The heat exchanger is also easily damaged at high temperatures of the flame, thereby shortening the service life of the boiler water circulation system equipment.

Industrial gas boilers have a long service life, generally 10-20 years, but to achieve such a long service life and good operating results, maintenance and repair processing is essential. Among them, water treatment is an important step.

The influent of industrial gas boilers must ensure good purity. This is mainly to prevent the boiler from generating scale under long-term high-pressure and high-temperature operation.

The purpose of gas boiler water treatment is to remove the calcium and magnesium ions which are easy to scale in the boiler, reduce the degree of boiler fouling, ensure the heat exchange effect of the boiler, and improve the thermal efficiency.

The process of water treatment is as follows:
       1. Pretreatment
       When the raw water of the gas boiler is surface water, the purpose of the pretreatment is to remove suspended solids, colloids and organic matter in the water. Usually, a coagulant (such as aluminum sulfate) is added to the raw water to make the above-mentioned impurities aggregate into large particles, sink by their own weight, and then filter into clean water. When groundwater or urban water is used as make-up water, the pretreatment of raw water can be omitted and only filtered. Commonly used clarification equipments include pulsed, hydraulically accelerated and mechanically agitated clarifiers; filtration equipment includes siphon filters, valveless filters, and single-flow or dual-flow mechanical filters. In order to further remove organic matter from the natural gas boiler water, an activated carbon filter may be added.
       2. Soften
       Gas boilers use natural or artificial ion exchangers to convert calcium and magnesium hard salts into hard-free salts to prevent calcium and magnesium hard scale from forming on the inner wall of boiler tubes.
       Water containing calcium and magnesium bicarbonate and having a high alkalinity can also be solved by sodium hydrogen ion exchange or by pretreatment (such as lime addition).
       For some industrial boilers, such treatment is usually sufficient, although the salinity of the feed water does not necessarily decrease significantly.
       3. Desalting
       With the continuous improvement of gas boiler parameters and the emergence of DC boilers, it is even required to remove all salt in the boiler feed water. At this time, it is necessary to use a method of desalting.

Condensing gas boilers are the star products that replace traditional coal-fired boilers and are now sold worldwide. However, there are still many users who have doubts in their minds and do not know how to improve the quality of their own condensing gas boilers. FANGKUAI Boiler has been researching condensing gas boilers for many years. It is specially designed for you to summarize the following three main factors affecting the working quality of condensing gas boilers.

First, the matching of equipment parameters and specific environment.
       The high degree of matching between the condensing boiler and the environment is essential to ensure the stability of the system. When purchasing the condensing gas boiler, the user must first understand the parameters of the various interfaces of the boiler, such as the thermal energy value, the size of the pipeline, the available space area, etc. Combined with the appropriate condensing boiler and the original thermal energy system, it can ensure that the condensing boiler is consistent with the actual use environment.

Second, Operate the condensing gas boiler correctly according to the instructions.
       The working quality of the condensing gas boiler is also related to the operation method. When the operator's adjustment value of the boiler parameters is inconsistent with the environment or the order of different operations is disordered, it may also cause the system to be stuck during the use of the condensing boiler. Excessive condensate, insufficient pressure, or abnormal temperature changes. Therefore, it is best to have professional guidance and strict operation according to the instructions before and during use of the condensing boiler.

Third, the maintenance and maintenance of the condensing gas boiler.
       Regular maintenance and maintenance of the condensing boiler is also the main reason for the quality of its work. The boiler should be regularly inspected and maintained during operation. After the boiler is shut down, it must be maintained. This will ensure that the boiler can operate normally when the boiler is used again, thus maintaining the long service life of the boiler.

In the operation process of the condensing boiler equipment, the equipment will be abnormally faulted due to various factors. The correct operation and maintenance of the equipment by the operator is the basis for ensuring the stable operation of the condensing boiler, and the manufacturer should be professional at regular intervals. The technical support personnel go to the maintenance inspection and comprehensively train the operators so that the operator can make timely protection measures when the equipment is abnormal.

The vacuum boiler mainly refers to the micro-negative pressure boiler whose internal gas pressure is lower than the external atmospheric pressure. The lower the gas pressure, the lower the boiling point, so that the water boils at low temperature and generates steam, and the overall efficiency of the boiler is higher.

Vacuum boilers on the market today can be divided into two categories according to fuel.

First, electric heating vacuum boiler.
       When the electric heating vacuum boiler is operated, its internal environment is in a vacuum state. At this time, the oxygen in the intermediate medium water is discharged to the outside of the electrothermal vacuum phase change boiler, so that oxidative corrosion is not caused in the boiler, which may cause damage to the equipment. At the same time, the material of the heat exchanger part of the electric vacuum hot water boiler is made of stainless steel and will not corrode. In addition, the electric vacuum hot water boiler only needs to add a small amount of heat medium water at a time, and it will not increase or decrease during operation, so there is no scale inside.

Second, fuel (gas / coal) vacuum boiler.
       Most of these vacuum boilers use imported burners, which have high combustion efficiency and extremely low noise and exhaust emissions. Internally, an exchanger made of stainless steel is used to ensure high heat exchange efficiency and to ensure clean water quality. At the same time, its smoke pipe is equipped with a spiral spoiler to improve heat transfer efficiency and reduce operating costs. In addition, it adopts a square structure as a whole, and the boiler and the heat exchanger are designed in one piece, which makes the structure compact and small in appearance.

Through the above classification of vacuum boilers, and to illustrate the characteristics of different categories, so that everyone knows their relevant knowledge. This part of the knowledge is the basic knowledge of the purchase of vacuum phase change boilers, we need to keep in mind, in order to make the most suitable choice when choosing the purchase, choose the boiler equipment.

The popularity of national energy-saving and environmental protection ideas has led to significant changes in all walks of life. When enterprises purchase boiler equipment, they will also prefer energy-saving and environmentally-friendly boilers. Condensing boilers are undoubtedly the representative products.

However, in constant comparison, we will find that no matter which brand, the condensing boiler is much more expensive than the ordinary boiler. What is the reason? What is the difference between the two? Today, we compare the following two aspects from the following three aspects. What is the difference between the two, and where is the condensing boiler?

1. Condensing furnace has higher thermal efficiency
       The water generated by the combustion of ordinary boiler fuel in the superheated state of the flue gas is lost with the flue gas from the chimney, resulting in a low thermal efficiency of the boiler. The condensing boiler fully recovers the sensible heat in the flue gas and the latent heat of condensation of the water vapor, and the thermal efficiency is extremely high, which is very energy-saving.

2. The life of the condensing boiler is significantly higher than that
       Due to the design problems of key parts such as combustion chambers and heat exchangers, and the domestic water quality and gas quality, the service life of ordinary boilers cannot meet the design requirements. The service life of some European purely imported boilers is generally five years. Brands can go beyond imported brands. The service life of condensing boilers that are popular with customers is generally about 4-5 times. This is because of its revolutionary product working mode, the life expectancy is significantly ahead of ordinary boilers.

3. The condensation furnace is extremely difficult to form scale
       Ordinary boiler: The piping system is often heated, so it is easy to form scale, which is more likely to damage the equipment. In order to solve the scale problem, most customers have to use a soft water machine. Condensing boilers use a new mixed-water system because of the new mixed-heat combustion. Therefore, compared with ordinary boilers, the condensing boiler does not have to worry about scale.

The above is the difference between FANGKUAI Boiler and the common boilers. From the above comparison, we can know that the performance of the condensing boiler is more prominent in terms of energy-saving, service life and post-cleaning. However, the price of the condensing boiler is not low, because it is recommended that you still need to purchase products according to your own budget.

To put it bluntly, to improve the thermal efficiency of the condensing boiler is to save money for the enterprise. However, what can be done to improve the thermal efficiency of the condensing boiler. Based on years of experience in the boiler industry, FANGKUAI Boiler concluded that boiler efficiency and pipe network transmission efficiency are the key to implementing energy conservation, and that reasonable use of machinery and equipment in strict accordance with relevant points can achieve better heating effect and improve The efficiency of the equipment, and consumers want to more reliably improve the efficiency of the heating of the condensing boiler should also follow this principle.

1. Improve boiler efficiency.
       Condensing boiler efficiency is not the rated efficiency of a single boiler, but the seasonal efficiency of the condensing boiler group (group). In order to improve the seasonal efficiency, it is necessary to minimize the number of starts, stops and standby time of each condensing boiler during the heating period. This is because each time the boiler is started and stopped, it is subjected to purging to consume heat. In the standby time, the condensing boiler is equivalent to a large radiator and also causes heat loss. In order to improve the seasonal efficiency of the boiler group (group), the design selection configuration is very important. When selecting the model, it is necessary to consider how the boiler combination has better variable load regulation capacity and promote the minimum output of the boiler to match the minimum load.

2. Improve the efficiency of pipe network transportation.
       There are three factors affecting the efficiency of the condensing boiler pipe network, namely heat loss caused by heat preservation, leakage and hydraulic imbalance. The heat loss caused by the imbalance of the outer pipe network and the vertical imbalance of the heating system is considerable. The horizontal imbalance of the outer pipe network of the condensing boiler and the heat loss caused by the vertical misalignment of the indoor heating system are large. Therefore, in order to improve the efficiency of the condensing boiler, it is necessary to improve the efficiency of the pipe network transportation. Nowadays, the cost of energy is high, and it is very important to reduce the loss of heat loss in the condensing boiler network. In order to reduce the heat loss of the pipe network, the condensing boiler should adopt a hydraulic balance system and a room temperature control system.

The above is the principle of improving the efficiency of the condensing boiler summarized by FANGKUAI Boiler. In addition, the efficiency of each condensing boiler needs to be improved. For this reason, it is best to choose a proportional adjustment burner for the condensing boiler. At the same time, it is required that the commissioning work of the manufacturer must be standardized and in place, and based on the test report. Only in this way can the average operating efficiency of the boiler be close under normal load conditions. Rated efficiency.

Combined with the status quo of social development and the world energy adjustment strategy, gas boilers have been widely used and used after being introduced into the market. Then, combined with the current situation, how is the development trend of good gas boilers in the future?

Boilers play a very important role in enterprise production and people's lives. However, energy prices have increased significantly in recent years, and the operating cost of boilers is a very large expense for more people. Can afford to afford the boiler. Faced with this problem, manufacturers have changed the boiler's equipment, using advanced condensing equipment to recover the waste heat from the high-temperature flue gas, thereby improving the thermal efficiency of the boiler and saving more money for the enterprise.

Gradually becoming energy-saving is the future development trend of gas-fired boilers, and the main way to achieve effective energy utilization. Changing the way of using traditional energy sources is a good phenomenon of resource recycling. In the future, the resources and environment in the society will be greatly improved. To avoid rapid depletion of resources, technological transformation is very necessary.

Energy-saving equipment is imperative in the future, and the overall design, development and utilization of gas-fired boilers will become more mature with the continuous development of society; for people, the use of more and more energy-saving equipment is The inevitable trend of social development, and for more businesses, the weight of the promotion form of energy-saving boiler products, but also the greatest contribution to the social environment.

In general, the development trend of gas-fired boilers is already very obvious. It is not only more energy-saving and environmentally friendly in terms of material application, but also has a reasonable improvement from the whole device. It not only meets the use mode of the boiler, but also needs to ensure the temperature to the maximum extent and the quality is more stable. A reliable gas boiler is the mainstream trend in the future.

The introduction of new environmental protection laws and boiler air pollution control standards is standard in China's approach to the increasingly strict atmospheric environmental management road. Coal-fired boilers are the main target of environmental protection department management, and coal-fired boiler renovation projects are also being carried out everywhere. Many people will choose to change the coal-fired boiler to a gas-fired boiler. This is not only because the natural gas is cleaner and more environmentally friendly, but the thermal efficiency of the modified boiler will also increase by about 15-20%, which can save the company a lot of fuel input costs.

In addition to the selection of high-quality coal-fired boiler retrofit companies, special attention must be paid to the following items.

1. Precautions for boiler removal
       In order to carry out the transformation of the coal-fired boiler, it is necessary to dismantle some parts of the existing boiler; when removing the boiler, it is necessary to turn off the blower to stop its operation. When the boiler furnace temperature drops to a suitable temperature, stop the boiler induced draft fan, the chain grate, and then The worker enters the furnace from the fire door, removes the original furnace arch of the boiler, cleans the inside of the furnace, and then removes the boiler main engine and auxiliary machine.

2. Furnace renovation considerations
       Furnace is a key point in the work of transforming coal-fired boilers. Through reasonable transformation, the combustion conditions of existing boilers can be improved, so that they not only meet the combustion conditions of new fuels, but also better play an energy-saving role. However, during the transformation, it involves the recasting of the furnace. Therefore, special attention should be paid during this transformation process to keep the rear arch tube of the original boiler away from the center of the flame to avoid high temperature burning.

3. Reconstruction test precautions
       When the transformation of coal-fired boilers is carried out through a series of projects such as furnace reformation and pouring of new boiler front arch and arch, it is necessary to pay attention to the test of the modified boiler. One of the most important tests is to test the water pressure of the boiler body under a certain pressure. Only after passing the test and transformation, the boiler can be put into use.

The above is the three important items that should be paid attention to when the coal-fired boiler is changed to a gas boiler. The quality of the coal-fired boiler transformation company can be modified according to the characteristics of the boiler itself and the needs of the enterprise, and strive to achieve perfect energy-saving and consumption-reducing effect. However, because the boiler has pressure during use, it must be after the transformation is completed. Pay attention to the relevant tests to avoid potential safety hazards.

The country's emphasis on energy conservation and emission reduction has increased year by year, which has also promoted the vigorous development of gas-fired steam boilers in various industries. Under the premise of environmental protection policies and high-efficiency benefits, enterprises are willing to choose gas-fired boilers that are both energy-saving and highly efficient. In addition to providing sufficient high-temperature steam, gas-fired steam boilers can reduce fuel input costs by reducing the combustion load. The use of gas steam boilers will bring obvious benefits to the company, let us take a look.

1. Economy
       The biggest advantage of using a gas-fired steam boiler is that it can save a lot of fuel costs for the company. It does not need to spend a lot of money to purchase a large amount of coal-carbon fuel. It only needs to use natural gas with good cleanliness to output enough steam. It also does not need to prepare fuel. To store the site, you only need to connect the pipes.

2. Security
       As we all know, natural gas is a very safe and stable, non-toxic, non-polluting, clean-clean fuel. It does not settle on the ground like liquefied gas or gas leaks, and may even burn again causing accidents. Gas-fired steam boilers are the safest choice for gas selection in the process of transporting gases, and are also easily found after leaks, making them the safest method of use.

3. Convenient
       Gas-fired boilers are also very convenient to operate, so they will be favored by all walks of life. Because they use natural gas pipelines, there will be no troubles under continuous operation. It eliminates the tedious work of using coal to transport or stack and clean cinder.

4. Clean
       The reason why the gas-fired steam boiler can be highly evaluated in the market is that it is clean and non-polluting in use, there is no black pot bottom production, and there is no exhaust gas pollution. Therefore, it is the cleanest way to use compared to other boilers.

In summary, FANGKUAI Boiler summarizes the four benefits of using gas-fired steam boilers. The boiler is an important source of power for many enterprises and a valuable energy channel for the state. Domestic professional gas-fired steam boilers can not only save the country's valuable fuel resources, but also use energy-saving and energy-saving to improve the pollution of exhaust gas to the air.

Gas-fired steam boilers are the first choice for many industries such as food processing, paper making, brewing, and chemical production. In the current boiler market, gas-fired steam boiler technology has been very advanced, with obvious advantages of stable operation and low energy discharge and energy saving. If you do not use it for a long time, you must use the correct maintenance method to maintain normal operation during subsequent startups.

The gas steam boiler is not used, the specific maintenance method and the square boiler are carefully analyzed.

1. dry maintenance
       The gas-fired boiler needs to be drained after the furnace is shut down, then the internal dirt is completely removed and rinsed, and the drying in the furnace is kept so as not to be eroded.
       You can use a small fire when drying the remaining water in the furnace, but you should not use a large fire. Also be careful to close all the hand hole pipe valves and place the quicklime pan in the drum.
       If you have not used a gas steam boiler for a long time, check the boiler at least three months. If the quicklime in the crucible is broken into powder, it is necessary to replace the new lime in time to ensure that the dryness protection in the gas steam boiler is not corroded by moisture.

2. wet maintenance
       The specific operation procedure of the wet maintenance is: after the water in the furnace is discharged, the internal dirt is removed, and the treated water is filled into the crucible and then heated to the required temperature; then the gas in the water is completely discharged to the furnace. In addition, close all valves. However, it should be noted that when the weather is very cold, wet maintenance should not be used to prevent the furnace water from freezing and damaging the furnace and cannot be used.

It can be seen that the gas steam boiler can be used in both dry and wet methods without being used. The specific maintenance method should be flexibly selected according to different sites and climatic conditions, which is also for normal use in the future. "Protect the escort."