Boiler Knowledge

What hot water boiler brands are on the market and how are they ranked?

Although it is now in June, if you want to purchase a hot water boiler for heating and heating in winter, you must seize the time now, because after the hot water boiler is purchased, boiler manufacturing, transportation, installation and commissioning will be carried out. Run and many subsequent operations. Considering that many users are exposed to hot water boilers for the first time or are purchasing heating boilers for the first time, they are not very familiar with some hot water boiler brands on the market and the comprehensive strength ranking of manufacturers. Zhengzhou Fangkuai boiler manufacturers come to do free science for everyone today .

First, we must first understand the boiler type of hot water boiler. The hot water boiler is a thermal energy device that transfers the heat energy released after the fuel is burned to the boiler and reheats the hot water to meet the needs of people. If it is divided according to fuel, hot water boilers are mainly composed of fuel oil type, coal type, biomass type, electric energy type, etc. Generally speaking, the use of fuel gas is relatively more because of the high fuel calorific value It is more convenient to call, and more importantly, energy saving and environmental protection; or some areas with relatively cheap electricity prices choose to use electrical energy, so that it will be more environmentally friendly, and there will be basically no troubles of polluting.

2020-06-07 11:01:19

Why can't the boiler use "hard water"?

Hard water is a common name in our lives, refers to water containing calcium and magnesium ions and other impurities. In life, the use of this kind of water is more, it is easy to accumulate scale; and the same is true in boiler equipment.

Boiler water generally contains impurities, mainly calcium and magnesium salts. If the hardness is above 8 degrees, then it is called hard water, and when it is used, it is easy to form hard scale in the boiler, which will increase the energy consumption of the boiler. To solve and avoid scale problems in boilers, it is necessary to start from the source and soften the hard water.

A boiler of 1 million kcal is equivalent to a boiler of 1.7 tons. Because 600,000 kcal is equal to 1 ton, it is only possible to draw a conclusion.

When it is found that the boiler's hot water supply pipe is frozen, the solution measures are mainly the following aspects.

Measure one: The boiler operates at a low temperature, and its temperature is gradually increased to defrost naturally.

Measure 2: Use fire welding, or use liquefied gas for fire roasting.

Measure 3: Use electric heating or hot water pouring to defrost.

The energy used by the gas-fired boiler is gas fuel, which is a kind of clean energy. Therefore, the flue gas generated by the boiler does not require special treatment. The feed water is also softened water, and it only needs to cool down and settle during the sewage discharge, and the operation is very simple.

2020-05-31 17:49:42

How does a boiler output heat energy, and how many types of boilers are on the market?

The heat energy generated by the boiler can be used directly, or it can be converted into mechanical energy by a steam power plant, and it can even be converted to power by a generator for reuse.

Due to the difference in output medium, fuel used, structure, tonnage, pressure and other factors, there are different types of boilers. For example, if the boiler produces hot water, it is a hot water boiler, and the steam is a steam boiler.

From the perspective of Zhengzhou Fangkui Boiler Factory, it is necessary to install a pressure gauge on the boiler. The role of the pressure gauge on the boiler is to measure the internal pressure of the boiler so that the operator can perform the combustion of the boiler according to its specific value Appropriate adjustments are made to adapt to changes in load, and to ensure the normal and safe operation of the equipment.

There is no relationship between the boiler tonnage and the working principle, because no matter what the boiler tonnage is, the working principle is the same.

The natural circulation boiler allows the water to naturally circulate and be heated in the boiler through the difference in severity, so that the steam can be separated from the steam to obtain steam, which is heated and sent to the steam engine. The once-through boiler does not have a cycle, it heats and vaporizes the water directly, and then sends it to the steam engine. Therefore, it is much simpler in process than natural circulation boilers, which is the main difference between these two types of boilers.

2020-05-29 17:49:01

Do I need to report to the relevant authorities when installing the atmospheric hot water boiler?

Atmospheric pressure hot water boiler is a category of boiler equipment. The interior is of atmospheric pressure structure, basically there is no risk of use, and the safety factor is relatively high. So, if this type of hot water boiler is installed and used, do you need to report to the relevant departments and submit materials? Zhengzhou Fangkui Boiler Company will answer your questions.

For boilers such as atmospheric hot water boilers, whether they need to be reported for installation depends on the capacity of the boiler. If it is less than 300,000 kcal, it is not necessary to install the registration; if it is more than 300,000 kcal, it is necessary to report.

However, from the current form, this provision is not static, depending on the policy situation in each region.

The requirements for the height of the boiler during the installation of the boiler are mentioned in the "Boiler Air Pollutant Emission Standard", specifically speaking: the lower limit of the chimney height should be determined according to the total capacity of the boiler room, but the basic The requirement is to be higher than the height of the building. If the boiler capacity is above 28MW, it should be comprehensively considered based on environmental and other factors.

When it is found that the water level cannot be seen through the water level gauge in the boiler, it is possible to perform the flushing work to determine whether the water is lacking or full, and then take effective measures to solve the problem.

2020-05-25 17:47:19

What are the characteristics of fuel oil hot water boiler in structural design?

Oil-fired hot water boiler is a type of boiler that can output high-temperature hot water. In terms of pressure division, there are normal pressure, negative pressure and pressure. Generally speaking, if it is heating and heating, it is enough to use atmospheric pressure oil-fired hot water boiler, which can not only reach the required temperature, but also ensure safety.

Atmospheric pressure oil-fired hot water boiler adopts atmospheric design in the structural design, and the top of the boiler is provided with an atmospheric hole. The internal pressure is always balanced with the external pressure, so that the danger of explosion can be avoided.

In addition, the furnace body of the boiler adopts computer optimization simulation design in order to optimize its size, get a good appearance and shape, and also save a lot of floor space.

The use of glass wool in the oil-fired hot water boiler is used for the whole-body insulation, which has better insulation effect. The advantages of glass wool are light weight and small heat loss, so its thermal insulation effect is very good.

The main components of the atmospheric fuel oil hot water boiler are the fuel oil burner, the boiler controller and the hot water circulation pump, which are very important and indispensable.

The scope of application of the fuel gas vacuum hot water boiler in the fuel oil hot water boiler is generally on the heat source of heating load, ventilation and air conditioning heat load. Especially, when it needs to be installed in a building, it is very suitable to use this kind of boiler, and it also has good use effect.

2020-05-23 17:47:01

How does the hot water boiler ensure energy-saving operation?

Recently, Zhengzhou Fangkuai Boiler Company has received many inquiries from users who want to purchase hot water boilers. For example, how does a hot water boiler achieve energy-saving operation? Why should the economizer and recirculation door be closed when the boiler is filled with water? In addition, what is the phosphate treatment of boiler feed water? Today, our technical engineers are here to answer questions for everyone.

The energy-saving operation of the hot water boiler is specifically reflected in: the heating temperature of the boiler can be very low, and the outlet temperature is in the range of 110-150 ℃. In the boiler heating process, all are sensible heat parts and no latent heat parts. In addition, the exhaust temperature of the boiler is low, so that the heat loss is small.

Why should the economizer and recirculation door be closed when the boiler is filled with water?

This is because when the boiler is started or shut down, it is sometimes for intermittent water supply, which plays a certain role in protecting the energy-saving device. At this time, the circulation door must be closed, otherwise the effect of protecting the economizer cannot be achieved. In addition, if the recirculation door is not closed during the process from the boiler to normal operation, it will affect the boiler steam quality, and there will be some other effects.

How to correctly understand the phosphate treatment in boiler feed water?

The phosphate treatment of boiler feed water is simply to add phosphate to the boiler feed water. In this way, scale will not form in the boiler, but water slag will be generated and can be discharged through the boiler blowdown, thus avoiding the boiler The problem of rust corrosion.

2020-05-21 17:45:34

Are there any requirements for the feed water temperature when operating a gas steam boiler?

The gas-fired steam boiler is a star product of Zhengzhou Fangkui Boiler Factory. As for why it sells very well, it is mainly related to the performance advantages of the boiler itself. However, many users still have some doubts when operating this type of boiler. Today, Zhengzhou Fangkui Boiler Company will come to answer them one by one.

What is the role of circulating water in gas steam boilers?

In a boiler such as a gas-fired steam boiler, the purpose of circulating water inside is to allow the heating surface of the boiler to be evenly heated, so that the heat energy can be effectively transferred to the heat medium, and then the boiler can generate steam.

Are there any requirements for the feed water temperature of gas steam boilers?

Regarding the feed water temperature of gas-fired steam boilers, there are currently no regulations in this regard, which are generally determined based on actual conditions and deaeration conditions.

What is the difference between two-pass and three-pass in gas steam boilers?

In the gas-fired steam boiler, the second return stroke means that the boiler is not provided with a second return stroke smoke tube, etc., and the flue gas in the furnace is from front to back. The three-pass means that the flue gas is discharged from the boiler after the heat is transferred from the furnace, the two-pass smoke pipe and the three-pass. This is the difference between them.

Is there a difference between the theoretical and practical gas consumption of a 0.3-ton gas-fired steam boiler per hour?

A 0.3 ton gas steam boiler is a 0.3 ton gas steam boiler. The theoretical value of gas consumption per hour is about 21 cubic meters, but in actual operation, it will be lower than this value. As for the specific data, it depends on the actual Situation.

2020-05-19 17:44:53

You can know the operation status of the boiler by looking at the exhaust temperature of the gas hot

The flue gas temperature can directly reflect the operating status of a gas-fired hot water boiler. As for why this is so, Zhengzhou Fangkui Boiler Company gives a clear answer.

Many users will have such a doubt, whether there are upper and lower limits on the exhaust gas temperature of gas hot water boilers?

In this regard, from the current perspective, there are no regulations in this regard, but there are still some requirements in the entire boiler industry. Because the flue gas temperature will directly or indirectly affect the operating efficiency of the boiler, resulting in a situation of energy-saving operation or non-energy-saving operation. We need to pay attention to that there is an inverse relationship between the flue gas temperature and efficiency of the boiler. The higher the boiler exhaust temperature, the lower the efficiency, and the less energy-saving.

What methods can be used to combine gas hot water boiler with solar energy system?

If the gas-fired hot water boiler is combined with the solar energy system, the main ways to combine them are the following.

Method 1: The control cabinet in the solar system controls the start and stop of the circulating pump according to the water temperature and temperature, and there is a water flow switch on the boiler, which starts the boiler when the water flows and performs circulating heating.

Method 2: Install a temperature probe in the water tank. When the temperature is lower than the set value, turn on the circulating pump and the boiler for circulating heating.

Method 3: If the boiler is a direct-heating structure, the water in the water tank can be directly used by heating the boiler once.

Can gas condensers be used in gas-fired hot water boilers?

Flue gas condensers can be used in gas hot water boilers, but pay attention to the installation location, which should be directly connected to the return water pipeline. In fact, it can also be considered that an energy-saving device is added to the boiler, so as to improve the inlet temperature and thermal efficiency of the boiler.

2020-05-17 17:44:05

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