Boiler Knowledge

How to recycle the water used by gas boiler?

Water is an essential substance in the operation of a gas-fired boiler. The water flowing into the boiler had better be softened, which is mainly to reduce the formation of scale, so as to maintain a good operating environment for the boiler.

After circulating in the boiler, a lot of water will be directly discharged from the outside of the boiler, which is a great loss and waste for users. How to recycle the water to achieve recycling? Let zheng Zhou fast boiler manufacturer tell you the answer.

First of all, water will evaporate when heated in a gas-fired boiler, so it is necessary to have a replenishment system, or pay attention to whether the current replenishment system can continue to work normally.

As you are using a gas-fired hot water boiler, you must pay attention to the water treatment system. This is because some users for the boiler water treatment knowledge is relatively deficient, the need for users to sell to the boiler manufacturers to hear the use of knowledge, to ensure that the boiler is always safe and stable operation.

After no years of use, it is appropriate to put the hot water in the boiler to shine when not in use, to reduce the probability of scaling.

In the process of using the gas boiler, pay more attention to observe the operation of the boiler, after all, the boiler is a special equipment, whether gas or electric boiler there is a certain risk, must be reduced to the lowest risk coefficient.

For boiler water treatment personnel, need to have the first and second boiler water treatment special equipment operating personnel certificate can be on duty.

2020-09-27 08:34:17

Extend the service life of oil-fired and gas-fired boilers and improve their cost performance

Oil-fired and gas-fired boilers can use both gas fuel and oil fuel. The fuel adaptability is very wide and can be normally used in the whole country. And the boiler operation efficiency is very high, a year down, at least can save tens of thousands to hundreds of thousands of fuel input costs, thus favored by users.

For boiler users, the service life of oil-fired and gas-fired boilers is very important, which is a very important data to measure the cost performance of boilers. But in fact, want to prolong the service life of oil and gas boiler also has certain methods, let zheng Zhou Fang Fast boiler factory boiler technical engineer Song Gong to give you the answer.

First of all, we must control the water quality in the oil-fired and gas-fired boiler to prevent the boiler from heating unevenly caused by scaling. The harm of boiler water quality is mainly scale, corrosion, steam quality deterioration, especially to the existence of hardness substances in the water, in the boiler and water contact heating surface will generate some poor thermal conductivity and hard solid attachment, this phenomenon is called scale. Because scale thermal conductivity is hundreds of times worse than that of metal, it is easy to cause local overheating deformation of metal, bulging, tube explosion and other accidents, affecting the safe and economic operation of boiler; Clog pipes, destroy water circulation, affect heat transfer, reduce evaporation capacity, waste fuel, produce corrosion under scale, shorten boiler service life.

The second point is to control the heating rate of the boiler to avoid excessive thermal stress and metal fatigue.

Third, to the boiler feed water oxygen removal, prevent oxygen corrosion, such as the water quality of the furnace becomes poor, you can drain part of the furnace water. You also have to control the iron ions. The most important point, to control the boiler temperature, boost speed.

2020-09-25 08:33:28

The difference between water tube boiler and fire tube boiler, and how to choose the appropriate boi

Water tube boiler and fire tube boiler are two large boiler, in the current boiler market sales have been good, deeply user friends love. However, many users are not very familiar with the difference between water tube boilers and fire tube boilers. It is easy to buy inappropriate boiler models and delay the normal operation period of the factory. Zhengzhou Fangkuai boiler manufacturers on the two types of boiler equipment, for everyone to talk about what are the differences, can be used in which industry places.

Water tube boiler refers to a boiler in which water is discharged inside and smoke is discharged outside the pipe. The furnace of this kind of boiler is larger, the whole is membrane wall structure, generally make the capacity of large tonnage, tonnage ranging from 10-150 tons, fuel application range is wider; The boiler can also be retrofitted with low nitrogen in the later stage, and the cost performance of procurement is relatively high. Superheated device can be added to produce superheated steam, steam purity is higher.

But water tube boiler also has a certain disadvantage, that is, because the size of the boiler is larger, the production process is higher, at present only some, with a certain qualification of large boiler manufacturers can be produced.

Fire tube boiler refers to a boiler in which smoke goes inside and water goes outside. The furnace structure of this kind of boiler is opposite to water tube boiler, can be a little bit smaller, be in commonly 0.5-10 tons or so capacity.

The boiler burner USES the gasification principle, can make the fuel completely gasified, the entire burner adopts three-stage ignition mode, first light diesel with high energy igniter, then light diesel ignition concentrated coal powder, finally light coal powder ignition, achieve the coal powder all combustion.

In boiler operation, a large amount of industrial water and coal-based energy are used to generate steam, and the heat of steam is used to realize industrial production process. After steam releases part of the heat energy, condensate water is generated.

Using the high temperature condensate as the boiler make-up water circulation or the secondary flash steam utilization, not only saves the industrial water, but also saves a large amount of fuel. Thus, a boiler producing the same amount of steam can save 30 to 40 percent of fuel, water, and water-treatment drugs. Fuel saving while reducing the emission of boiler smoke, and protect the environment.

2020-09-23 16:32:43

Comparison of performance between ordinary gas-fired hot water boiler and vacuum gas-fired hot water

Winter is coming, gas-fired hot water boiler as the main heating equipment, is essential. Now is also the heating season before the preparatory period, many heating company users are engaged in the hot water boiler procurement work. Ordinary gas-fired hot water boiler and vacuum gas-fired hot water boiler are more popular in the market heating equipment, many users for how to choose and buy the appropriate boiler is more confused, Zhengzhou Fangkuo boiler factory is aimed at this problem to help you.

First of all, we need to understand the concept of the two types of boilers, from the concept of the two types of boilers is more efficient and fast method.

Ordinary gas-fired hot water boiler refers to the atmospheric pressure hot water boiler, the top of the boiler is equipped with air mouth, there is no pressure inside, so the operation is also very safe.

Vacuum gas-fired hot water boiler is the internal vacuum state, namely the negative pressure of the hot water boiler. This type of boiler also does not have the risk of outward explosion, the safety factor is also very high. More importantly, the operation efficiency of the vacuum gas-fired hot water boiler is higher, the operation mode is also more intelligent, basically does not need manual operation, can save a certain amount of labor cost.

In the choice of these two types of hot water boiler, we still need to be based on the use, fuel, capacity, environmental requirements, operating experience, cost and other factors to determine.

If you are not very familiar with the boiler, it is recommended to choose the vacuum gas-fired hot water boiler. The advantages of this boiler equipment are the high level of automation, and the product technology has been inclined to mature.

2020-09-21 16:32:30

Users of gas-fired boilers should pay attention to the fact that boiler blowdown is essential

For the gas boiler, sewage is a very important operation step, the natural gas boiler drainage is an important link to ensure that the use of continuous sewage discharge discharge of some salt dissolved in water, in order to maintain the boiler water salinity, alkalinity. Emissions are continuously expelled from the evaporation surface, which has the highest salt concentration in the pot water, also known as surface drainage.

Gas boiler sewage is also certain requirements and operation sequence, specific let Zhengzhou fangkuai boiler factory technical engineers to tell you the answer.

1. When sewage is discharged, it must be of high water level and low load (small external load). Steam pressure ≤kg/c; After the water level pump is started, replenish the furnace water to the high water level, and put the pump rotation button in the automatic position.

2. Open the quick discharge valve first, then open the slow discharge valve (slowly) to discharge; Switch between quick discharge valves several times (oscillate from bottom of furnace, discharge with water).

3. The pump will start (light) automatically in the sewage process and stop. First, close the drainage valve. When the quick drain valve is closed, hands must not be removed from the lever. Sewage may be repeated. When only two fixed drain valves are installed and no quick drain valves are available, open the right Angle valve first and then the fixed valve. When closed, note that there is no residual pressure between the two drain valves. Two methods of sewage. But the same furnace must be consistent, not one method today, tomorrow, one method, in order to protect a drainage valve in good condition, ensure safety.

2020-09-19 16:29:59

Which enterprises need to use oil and gas steam boiler?

Which enterprises need to use oil and gas steam boiler? The application of steam boiler is very wide, the output of high temperature steam plays an important role in production and use. But a lot of business units in the first contact with the boiler, for whether the need to use steam boiler is not very sure, let Zhengzhou fang fast boiler manufacturers to tell you the answer.

Oil and gas steam boiler is through the heat exchanger, the steam heat exchange to water, and then the water heating, can be used for heating, heating, bathing, production and other purposes.

Food industry: food processing, medicine industry and hospital bottle disinfection, food industry can be used for steamed meat, meals. Steam is also used to make wine.

In the petrochemical industry, steam can heat oil to a certain extent to increase good liquidity. Steam is also used in petrochemical production.

In production enterprises, the use of steam is relatively extensive, such as insulation foam board, production with steam heating raw materials for production. Furniture wood must be steam - dried to make furniture. The construction aerated brick also wants to use steam to dry, can also generate electricity, and so on.

Washing and ironing industry: dry washing machine, drying machine, laundry equipment, dehydrator, ironing machine, iron and other supporting equipment use.

Packaging machinery industry: labeling machine, set of labeling machine supporting the use.

Biochemical industrial manufacturers: food fermentation, reaction kettle, sandwich pot, mixer, emulsifier and other equipment supporting use.

2020-09-17 16:29:12

The reason why the steam boiler cannot be changed into hot water boiler is safety

Steam boiler and hot water boiler are two different types of boiler equipment, many users may use steam boiler in the early stage, later need to use hot water boiler, think of steam boiler can be changed into hot water boiler. Here, Zhengzhou fast boiler manufacturers solemnly tell you that this approach is not desirable, there are very big safety problems.

Problems existing in the conversion of steam boiler to hot water boiler:
       1. Cracks occur in the high temperature area of the tube plate
       After the reform, the hot water boiler usually forms a stagnant water flow at the back tube plate of the pot barrel, and becomes a stagnant water area. As a result, subcooled boiling and steam film are generated on the rear tube plate, leading to scale and cracking on the tube plate.
       2. Unreasonable installation of inlet pipe leads to bias flow and thermal deviation
       Due to the unreasonable layout of the return water pipeline into the boiler, such as the water inflow in the single header causes the flow deviation of each loop, which results in the thermal and hydraulic imbalance, resulting in the thermal deviation of the hot water boiler. Because the backwater only comes from the side head, and there is no water on the other side, the existence of thermal deviation will lead to short circuit flow, small resistance, flow pressure, large flow distribution.
       The other circuit can only rely on severe water differentials to keep the water circulating. The difference between hot and cold water in hot water boiler is small, so it is difficult to maintain the natural circulation of the loop and overcome the resistance of water flow, which leads to boiler water vaporization on the side of the water cooling wall, and even leads to the failure of water circulation and pipeline explosion.
       3, the flow of water resistance is too large, easy to vaporize
       Hot water from the boiler cannot be adequately fed into the system because of high water resistance. To reduce the flow resistance of boiler water. The original equipment in the drum, such as steam separator, baffle and device, should be removed to prevent the flow of media.

2020-09-15 16:25:20

What are the requirements for the water used when the industrial boiler is running?

Whether it is an industrial steam boiler or an industrial hot water boiler, a large amount of water is used during operation. Reasonable selection of the water flowing into the boiler can effectively avoid the boiler scale phenomenon and prolong the service life of the boiler, which is enough to see the importance of water to industrial boilers. So, what are the requirements for the water used in an industrial boiler during operation? Let Song Gong from Zhengzhou Fangkuai Boiler Factory answer it for you.

Ordinary heating boilers can use tap water. The tap water can be produced by softening equipment, which can reduce the content of calcium and magnesium ions in the water, effectively prevent the formation of scale and extend the service life of the boiler!

Moreover, the use of water treatment facilities in the boiler has more than this benefit. The internal scale of the boiler is less, and the cleaning and maintenance costs will be reduced accordingly, so as to achieve the purpose of saving costs.

Condensing gas boiler, also known as condensing gas boiler, is a type of industrial boiler. It is a boiler that condenses the water vapor in the flue gas so that the latent heat of vaporization can be used to improve thermal efficiency. Condensing gas boilers are different from traditional boilers. , Especially there are big differences in design ideas and process principles.

Condensing steam boilers have extremely high operating efficiency and long service life. The condensing steam boilers of the Zhengzhou Fangkuai boiler manufacturer have been recognized and used by a large number of users once they were introduced into the market.

2020-09-13 16:24:24

How long is the service life of an industrial boiler normal?

Industrial boilers are special equipment. During operation and user operation, if they are well maintained in operation, the service life of the boiler will be effectively extended, thereby improving the cost-effectiveness of the boiler. So, how many years is the service life of an industrial boiler considered normal? This is the doubt in the minds of many users. After all, everyone doesn't want to buy a new boiler, but it was suddenly scrapped after several years.

In fact, if you want to look at the service life of industrial boilers, the main factor is the overall quality of the boiler and the degree of user maintenance of the boiler.

Generally speaking, the industrial boilers on the market, according to the actual use effect, say that the steam boiler is about 8 years, the service life of high-pressure hot water is between 10-12 years, and the service life of atmospheric hot water is 3-5 years.

The actual life span is directly related to actual use and maintenance. Some atmospheric hot water can be used for more than 20 years if it is well maintained, but boilers that are not well maintained may be scrapped for a short time.

The industrial boilers of Zhengzhou Fangkuai Boiler Factory have Grade A production qualification and Grade 1 installation qualification. The steam boiler equipment provided by Sankeshu Paint Co., Ltd. has been used for 17 years. This number is very high in the entire boiler industry. Up.

2020-09-11 16:24:24

The boiler manufacturer reminds everyone: Be sure to use softened water when the 8-ton steam boiler

The 8-ton steam boiler can output 8 tons of high-temperature steam per hour, and is used in chemical plants, food processing plants, pharmaceutical plants and other industries. The Zhengzhou Fangkuai boiler manufacturer reminds everyone that the 8 ton steam boiler is a special equipment, and safety must be put in the first place during use to avoid casualties and property losses.

Be sure to use demineralized water when the 8-ton steam boiler is in operation. The specific reasons are as follows:

To burn an 8-ton steam boiler, salt is used to soften the water. Boiler water generally contains a lot of impurities, mainly calcium and magnesium salts. Water that contains more calcium salt, magnesium salt, and hardness above 8 degrees is called hard water. Boil the boiler with hard water, it is easy to generate hard scale. The ability of scale to conduct heat is relatively poor. It hinders the conduction of heat to hot water and increases energy consumption. According to estimates, when the scale thickness is 5 mm, fuel consumption needs to increase by 15%. Scale has a corrosive effect on the boiler tube wall, and can also bulge due to overheating and deformation, or even burst the tube, causing serious equipment accidents; sometimes explosions occur, causing casualties to boiler workers and people near the factory. Therefore, when the boiler is in use, we must try to reduce the hardness of the water and turn it into soft water. This is the water treatment of the boiler.

It seems that water treatment facilities cost more money to run the boiler, but in fact, these inputs are ultimately returned to the user and the boiler itself. If the overall condition of the boiler is good, the operating condition will be very good, and the high operating efficiency will be maintained all the time, thus saving the user input costs.

2020-09-09 16:24:24

Where are atmospheric hot water boilers and pressurized hot water boilers suitable?

From the names of atmospheric hot water boilers and non-pressure hot water boilers, we can distinguish that the former does not carry pressure and the latter carries pressure. This is a simple and intuitive difference. But in fact, there are many differences between the two types of boilers, and the applicable industry fields and operating locations are also different. Everyone should choose the appropriate boiler model according to their own needs for the hot water boiler, so that the boiler can work better for us. Xie Gong from Zhengzhou Fangkuai Boiler Factory introduced these two types of boilers to help everyone understand them more comprehensively.

In my country, atmospheric hot water boiler is also called pressureless hot water boiler, which means that the top of the boiler usually does not bear the static pressure of the water column of the heating system, which is equivalent to an "open hot water tank".

The meaning of atmospheric hot water boiler is that the opening of the boiler body communicates with the atmosphere. Under any working conditions, the boiler whose gauge pressure is zero at the boiler water level line; the boiler product model of atmospheric boiler is composed of three parts, and each part is connected by a short horizontal line.

Pressurized hot water boilers are the closed boilers we usually see. The steam and water system in the boiler is composed of closed containers and pipes, heated by flames, and subjected to fluid pressure during work, and belongs to special equipment.

The standard steam of the boiler refers to controlling the pressure and flow rate of the boiler in strict accordance with the process indicators. Steam includes saturated steam and superheated steam, which are divided into low pressure, medium pressure and high pressure steam.

2020-09-07 16:23:52

If you want a gas boiler to have high efficiency, you must first ensure that the boiler can burn com

For every user who uses a gas boiler, the operating efficiency is a very important figure, which is related to the operating status of the boiler and the input cost of each boiler user. Zhengzhou Fangkuai boiler manufacturer reminds you to ensure that the boiler can be completely burned, so as to ensure that the gas boiler has high efficiency.

For gas boiler equipment, complete combustion means that all combustible components in the fuel produce combustion products that can no longer be oxidized after combustion, which is called complete combustion.

Since there is complete combustion, it corresponds to incomplete combustion. Incomplete combustion refers to the combustion of combustible components in the combustion products produced by the fuel after combustion.

If the fuel is incompletely burned, not only will it not exert all the fuel's heat energy, but the incomplete combustion will bring about very serious pollution, which is bad for the environment and the users themselves.

Importantly, incomplete combustion will reduce the operating efficiency of the boiler, thereby increasing operating costs and causing waste of resources.

 

Therefore, the two manufacturers in Zhengzhou Fangkuai once again remind you that you must pay attention to the fuel combustion state of the gas boiler during operation, avoid incomplete combustion, and improve the efficiency of the boiler.

2020-09-05 16:23:18

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