In the current boiler market, there are many manufacturers of gas-fired steam boiler equipment, which is inseparable from my country's current environmental protection requirements. Facing such a mixed boiler manufacturer, users who need to purchase boiler equipment will inevitably feel confused, do not know how to select the equipment correctly, and do not know the price of the equipment. Zhengzhou Fangkuai Boiler Factory will explain to you the price situation of 2 ton gas-fired steam boiler.

The 2-ton gas-fired steam boiler, as the name suggests, can stably output 2 tons of high-temperature, high-quality steam per hour. The operating efficiency of the gas-fired steam boiler launched by Zhengzhou Fangkuai Boiler Factory can reach more than 98%, which is at least 10% higher than that of ordinary boilers on the market. It can save tens of thousands to hundreds of thousands of fuel after one year of operation. Input costs. At present, the price of a 2-ton gas-fired steam boiler in the boiler market is between US$10,000 and US$10,000.

3-ton gas-fired steam boilers are used very frequently in various industries. For example, chemical, food, medical, building materials and other industries have their applications. Regarding the price of a 3-ton gas-fired steam boiler, it is also a question that many users are concerned about. Zhengzhou Fangkuai Boiler Factory is here to answer everyone for free.

There are many factors that determine the price of a boiler, such as operating efficiency, pollutant emissions, structural design, auxiliary equipment configuration, etc., so the price gap is also relatively large. The operating efficiency of the 3-ton gas-fired steam boiler launched by Zhengzhou Fangkuai Boiler Factory is generally above 98%, which is much higher than most steam boilers on the market. The current boiler price is about 20,000 US dollars.

Here, Zhengzhou Fangkuai Boiler Factory also reminds everyone of the importance of boiler safety valves. In boiler equipment, safety valves are safety devices installed to prevent explosions caused by high pressure in equipment and containers under abnormal conditions.

When the pressure in the equipment is too high, the safety valve automatically opens, and then automatically closes when the pressure drops to a safe range to prevent the equipment from exploding due to excessive pressure. Generally, the constant pressure of the safety valve is 0.5 to 1.1 times of the operating pressure.

According to its structure and principle of action, the safety valve is divided into gravity type, lever type, spring type and so on. The lever type is more suitable when the working temperature is high and the pressure is not too high; the spring type should be used for high-pressure equipment; generally, the spring type safety valve is commonly used.

Various aspects, such as chemical production, food processing, and medical disinfection, require high-temperature steam from a steam boiler. Therefore, 4-ton gas-fired steam boilers are widely used in industrial fields. At present, there are many boiler manufacturers producing 4 tons of gas-fired steam boilers in the market, and the quality of equipment is mixed. Users and friends will inevitably feel confused when purchasing boilers. Zhengzhou Fangkuai Boiler Factory will tell you the price and selection of boilers within the normal range. Type skills.

There are many factors that determine the price of steam boilers, mainly operating efficiency, pollutant emissions, floor space, internal structure, service life, and so on. The higher the configuration of the boiler, the more expensive it will be, but the greater the benefits it will bring, it can be said that it has a very high cost performance. At present, the price of a 4-ton gas-fired steam boiler in the market is between US$30,000 and US$40,000.

Zhengzhou Fangkuai Boiler Factory would like to remind everyone here that the boiler must be equipped with appropriate safety valve facilities to ensure safety during operation.

The pulse safety valve is composed of the main safety valve, the pulse valve and the connecting pipeline.

The main safety valve is controlled by a small pulse valve. Under normal conditions, the main valve is tightly closed by high-pressure steam. When the vapor pressure exceeds the specified value. The small pulse valve is opened first, and the steam is introduced to the main valve piston through the steam guide tube. The pressure of the steam on the piston can overcome the force of the spring compression, so the main valve is opened to discharge the steam and the pressure; when the pressure drops to a certain value, The small pulse valve is closed. The steam flow on the piston is cut off, so the main relief valve is closed again. The residual steam on the piston can play a buffering role, so that the main valve is slowly closed to avoid damage to the valve clack and valve seat due to impact.

Steam boilers are medium-sized equipment among special equipment and are often used in industrial production. Gas-fired steam boilers have many advantages such as high operating efficiency, low pollutant emissions, and long service life. Therefore, they are also very popular in the user market, and their use frequency is increasing year by year. Many users are more interested in the price of a single gas-fired steam boiler. Zhengzhou Fangkuai Boiler Factory takes 6 tons of gas-fired steam boiler equipment as an example to explain to everyone.

At present, the operating efficiency of a single 6-ton gas-fired steam boiler on the market is generally around 70%, which is a relatively medium figure. The gas-fired steam boiler launched by Zhengzhou Fangkuai Boiler Factory adopts a new type of condensing recovery technology, and its operating efficiency can reach more than 98%; combined with low-nitrogen combustion technologies such as full premixing and FGR, the nitrogen oxide emissions of the boiler can be reduced to Below 30 mg/cubic meter, once it was introduced into the market, it was praised by numerous users. At present, the price of a single unit of this type of boiler ranges from US$40,000 to US$40,000, depending on the boiler model and the configuration of auxiliary equipment.

Zhengzhou Fangkuai Boiler Factory is here to remind everyone that in the boiler equipment, the expansion indicator is a relatively important equipment, mainly used to monitor the expansion of thick-walled pressure vessels such as steam drums and headers during the ignition and pressure rise process. Yes, it can be used to detect the deformation of the evaporation equipment caused by improper ignition boost or poor installation and maintenance, and prevent cracks and leaks from uneven expansion. Generally installed on the header and steam drum.

The 8-ton gas-fired steam boiler refers to boiler equipment that can output 8 tons of high-temperature steam per hour, and is commonly used in industrial fields. Many users are not familiar with the selection of gas-fired steam boilers. Facing the numerous boiler manufacturers and boiler types on the market, it is easy to feel confused. Zhengzhou Fangkuai Boiler Factory has recently received inquiries from many users. I am very interested in the price of the boiler. Today, I will give you a unified answer.

There are many factors that determine the price of an 8-ton gas-fired steam boiler, such as boiler model, internal structure, operating efficiency, pollutant emissions, service life, and so on. The 8-ton gas-fired steam boiler launched by Zhengzhou Fangkuai Boiler Factory has two models, WNS and SZS. The operating efficiency is above 98%, and the pollutant emission is as low as 18 mg/m3, which is one of the best in the entire boiler market. Therefore, it has also been loved by the majority of users and friends. The current price of this type of boiler ranges from 60,000 to 70,000 US dollars.

The technical engineer of Zhengzhou Fangkuai Boiler Factory also suggested that everyone should pay more attention to the superheater and reheater inside the boiler. These two accessories are important.

Their function is mainly to discharge the accumulated air, part of the superheated steam and reheated steam when the boiler is started, and to ensure a certain flow rate of the superheater and reheater to cool the pipe wall. In addition, when the boiler pressure rises or in an accident state, the steam and pressure are discharged together with the safety door to prevent the boiler from overpressure. During the start-up process, it can also increase the exhaust steam volume and slow down the boost speed. When necessary, the exhaust steam can also adjust the temperature difference between the two sides of the steam. It can act as an air door when the boiler enters and discharges water. For the reheater to exhaust steam, when the secondary bypass cannot be put into use, the primary bypass can still be used to vent steam to the reheater and exhaust to the empty exhaust valve to protect the reheater effect.

In the field of gas-fired steam boilers, WNS model is a relatively common type of gas-fired steam boiler. The full name of WNS is horizontal, internal combustion, and room-fired boiler equipment. The obvious characteristics of this type of boiler are the reasonable utilization of furnace space, proper structure and layout. Small footprint, high operating efficiency, stable operating state, etc.

Many users are very interested in gas-fired steam boilers, but do not know the selection of boilers and market prices. Zhengzhou Fangkuai Boiler Factory will come to answer your questions. Take a 10-ton gas-fired steam boiler as an example.

At present, the market price of 10-ton gas-fired steam boilers in the market generally ranges between 80,000 and 120,000 US dollars. As for the high intermediate price, it is mainly because of the difference in boiler operating efficiency and quality. The boiler equipment with high operating efficiency is in use. It must be very energy-saving and money-saving, so when you buy a boiler, you should not only look at the purchase cost, but also take into account the later operating costs, so that the boiler can better serve us.

Zhengzhou Fangkuai Boiler Factory also reminds everyone of the importance of safety valves in gas-fired steam boiler equipment.

Safety valve is a safety device installed to prevent explosion caused by excessive pressure in equipment and container under abnormal conditions.

When the pressure in the equipment is too high, the safety valve automatically opens, and then automatically closes when the pressure drops to a safe range to prevent the equipment from exploding due to excessive pressure. Generally, the constant pressure of the safety valve is 0.5 to 1.10 times of the operating pressure.

According to its structure and principle of action, the safety valve is divided into gravity type, lever type, spring type and so on. The lever type is more suitable when the working temperature is high and the pressure is not too high; the spring type should be used for high-pressure equipment; generally, the spring type safety valve is commonly used.

Gas-fired steam boiler is one of the common equipment in industrial production and processing industries. The boiler uses natural gas as fuel. It is very convenient for transportation, installation and later use. It only needs to build water, electricity, and gas pipelines and it can be started and used normally. The boiler adopts low-nitrogen combustion technologies such as FGR and full premixing, and the pollutant emission can be as low as 30 mg/m3.

Many users are more concerned about the price of gas-fired steam boilers. Zhengzhou Fangkuai Boiler Factory takes a 1-ton gas-fired steam boiler as an example to provide answers for everyone. The current market price of a 1-ton gas-fired steam boiler ranges from US$10,000 to US$10,000, depending on the configuration of the boiler, but in general it is within this range.

Zhengzhou Fangkuai Boiler Factory also reminds everyone to pay attention to the use of blowdown expansion vessels on the boiler.

In the boiler equipment, the function of the blowdown expansion vessel is: when the boiler sewage is discharged into the expansion vessel, the volume expands, the pressure decreases, and the saturation temperature also decreases accordingly. Part of the waste water under the original pressure is released after the pressure is reduced. This part of the heat is absorbed by the water as the heat of vaporization and part of the sewage is vaporized. The vaporized part of the steam is introduced into the deaerator for recovery. This part of steam and heat.

The blowdown expander is also called blowdown expansion vessel, and its design and manufacture should be carried out according to GB150-98 of pressure vessel. The continuous blowdown expander is connected to the continuous blowdown port of the boiler. It is used to decompress and expand the continuous blowdown of the boiler. The blowdown is adiabatically expanded in the continuous blowdown expander and separated into secondary steam and waste hot water. After the internal expansion, pressure reduction, heat exchange, and then discharge, the secondary steam is led out by a special pipeline, and the waste hot water is automatically discharged through the float level valve or overflow regulating valve, and the heat energy can be recycled and reused. The continuous blowdown volume is automatically adjusted with the change of the boiler feed water load to maintain a relatively stable blowdown rate.

Thermal efficiency data is very important for industrial boilers, which is directly related to the economic benefits of boiler users. It can be said that the design efficiency of the boiler determines the operating cost of the boiler. Generally speaking, the higher the thermal efficiency of the boiler, the greater the fuel consumption. Low, it will directly reduce the operating cost of the boiler.

At present, with regard to various furnace types such as oil-fired gas boilers and chain grate boilers, the average design thermal efficiency of domestic industrial boiler manufacturers is generally 70-90%, and the actual operating thermal efficiency is generally about 60-80%. Some small boiler manufacturers’ products Even below 50%. But in fact, there are ways to improve the thermal efficiency of industrial boilers. Let Zhengzhou Fangkuai Boiler Factory answer for you.

1. Increase effective use of heat, reduce boiler, exhaust heat loss and mechanical incomplete combustion loss.
       1) Reduce the air leakage rate of the air preheater, especially the air leakage rate of the rotary air preheater.
       2) Strictly control the water quality index of the boiler boiler water. When the scale content in the water wall tube reaches 400mg/m, it should be pickled in time.
       3) Try to burn fuels with high calorific value to reduce the air temperature at the inlet of the air preheater. Modern large-capacity power generation boilers are equipped with air preheaters to prevent condensation on the heating surface of the cold front end of the air preheater, leading to air preheating The device is corroded at low temperature.
       4) Adjust the combustion conditions according to the boiler load and time, reasonably distribute the air, and reduce the flame center position of the furnace as much as possible, so that the fuel can be fully burned in the furnace.
       5) To reduce the heat loss of the boiler, it is mainly to strengthen the maintenance and repair of the boiler pipe and the insulation layer of the body.

2. Scientific coal-burning ratio, rigorous process operation, improving air distribution, adding additives, etc.

Vertical boilers and horizontal boilers are two types of industrial boilers, which are determined according to the internal structure design of the boiler. So, in industrial boilers, what are the differences and characteristics of vertical and horizontal boilers? Let Zhengzhou Fangkuai Boiler Factory answer for you.

Features of vertical boiler:
       The combustion part adopts a double-layer grate combustor, which heats up quickly and boosts pressure quickly. After secondary combustion of unburned gas, it has the functions of full combustion, smoke elimination and dust removal. The elbow pipe arranged on the upper part of the furnace body is the convective heating zone, and the grate tube and the furnace bladder arranged on the lower part of the furnace body are the radiation heating zone. The structure of the furnace body and flue gas flow are reasonable in layout and good heat transfer. The boiler has a reasonable design and simple structure. Easy to operate and maintain, small footprint, low capital investment, is one of the ultra-small steam and heating equipment.

Features of horizontal boiler:
       Large water capacity, high thermal efficiency, fast steam production, sufficient steam, long service life, equipped with high-quality brand-name burners and pressurized feed water pumps, full combustion, timely water supply, low noise; optional computer controller with self-diagnosis function, operation When abnormal, it will automatically shut down and give an audible and visual alarm to indicate the fault code, which is convenient for maintenance; the protection device is complete, and the burner can be equipped with a purge device after high temperature, which is safe and reliable. Equipped with multiple protection devices such as high-quality safety valve, pressure regulator, low water level and overheat protection to ensure the safe operation of the boiler; compact structure, small footprint, elegant shape, and bright color; small tubular 30-300kg/h vertical type Two-pass, 500-1000kg/h adopts vertical three-pass; high efficiency and energy saving: the furnace structure is optimized, and the heating area is large, especially the three-pass boiler has high thermal efficiency, fast gas production and long service life. Optional high-quality brand-name burner and pressurized feed water pump, full combustion, no pollution, timely water supply, low noise, is the best equipment for industrial gas or heating above 5000 square meters.

So, which vertical boiler or horizontal boiler has lower air consumption and lower investment cost? The technical engineers of Zhengzhou Fangkuai Boiler Factory also performed calculations and analyses for everyone.
       The gas consumption of the boiler is mainly determined by the efficiency of the boiler. In terms of cost, the choice of vertical boiler or horizontal boiler depends mainly on the installation site. Vertical boilers can be selected for small and small-scale applications, and horizontal boilers can be selected for spacious sites. In comparison, it mainly depends on the needs of customers, because the scope of use of these two boilers is different. For example, if you want to heat a 100,000 square meter community, then a vertical boiler is not acceptable. If you can’t bring a large heating boiler, you must choose a horizontal boiler. Industrial boiler.

Hot water boilers and steam boilers are relatively common boiler equipment in the market, and they have room for development in all walks of life. So, what is the difference between a hot water boiler and a steam boiler, and where are they applicable? Let Zhengzhou Fangkuai Boiler Factory answer for you.

Simply put, hot water boilers are used for heating and hot water supply, such as bathing centers, swimming pools, residential areas, etc. are all needed, and it can even be said that as long as it is a place that needs heating, hot water boilers are needed. The largest tonnage hot water boiler launched by the Zhengzhou Fangkuai boiler manufacturer is a 130-ton fuel-fired gas hot water boiler; while the steam boiler is mainly used in the chemical, building materials, textile and other industrial industries for the production of steam. Of course, it can also Heating is generally provided by the way in production workshops and industrial parks, which is the case of combined heat and power.

Hot water as a heat source is suitable for air conditioners, heaters, low-temperature ovens, drying equipment, hot water tanks for textile printing and dyeing, and various low-temperature heating, air-conditioning coils and heat exchange equipment. Hot water as a heat medium has the following advantages:
       1. Hot water boilers generally have a low heat medium temperature and a large temperature difference with the flue gas. The boiler exhaust gas temperature is relatively low, so the boiler efficiency is high;
       2. The closed hot water system has a small amount of make-up water, a much smaller blowdown rate than a steam boiler, and less water waste. In addition, the boiler water quality requirements are low, and the water treatment cost is low; 3. The specific heat capacity of water is large, the hot water capacity in the system is large, and the heat storage capacity is strong. When there is a short-term failure in thermal or hydraulic operating conditions, it will not cause significant fluctuations in heating conditions;
       4. The hot water heating system can be pumped for long-distance transportation, with small heat loss and large heating radius, which can meet the requirements of urban central heating planning. The main disadvantages of using hot water as a heating medium for heating are lower temperature, lower heat transfer coefficient, and lower heat utilization rate.

Relatively speaking, steam boilers are the most widely used in my country, because the industrial coverage is too wide. The main advantages of steam boilers are:
       1. Low cost and wide adaptability, which can simultaneously meet the heat requirements of a variety of users who have different requirements for pressure and temperature;
       2. Non-toxic, can directly heat food, etc., even if there is leakage, it will not cause harm to the environment;
       3. The steam temperature is relatively high, and the latent heat of vaporization is large. Compared with hot water, it can reduce the heat exchange area of ​​the equipment and reduce the cost;
       4. Low thermal inertia, heat up quickly when steam is supplied, and cool down quickly when steam is stopped. The steam heat medium is difficult to recover due to the condensed water, which causes a waste of latent heat and water resources. Even if there is a condensate recovery device, in the process of condensate recovery, the water easily dissolves impurities such as oxygen, which can easily cause harm to the boiler. Impurities such as oxygen and salt in the feed water will cause boiler fouling, corrosion and other problems, affecting the safety and energy saving of the boiler.

Water tube boilers and fire tube boilers are two types of boilers. Due to the differences in the internal structure of these two types of boilers, the applicable places and industries also have certain differences. For specific industries where water tube boilers and fire tube boilers are suitable, listen to the suggestions of Zhengzhou Fangkuai Boiler Factory.

Water tube and fire tube boiler are defined by the difference of the medium in the tube. The water tube boiler is the pipe passing water, and the water in the pipe is heated by the external flue gas convection/radiation heat exchange. The fire tube boiler is the pipe passing the flue gas, letting The flue gas heats the medium outside the tube to realize heat exchange. The fire tube boiler has a simple structure, large water and steam volume, good adaptability to load changes, and lower water quality requirements than water tube boilers. It is mostly used in the production process of small enterprises and domestic heating. . The heating surface of the water tube boiler is convenient to arrange, and the heat transfer performance is good. It can be used in the working condition of large capacity and high parameters in structure. But it has higher requirements for water quality and operation level. In order to help everyone understand, Zhengzhou Fangkuai Boiler Plant summarized the following points:
       (1) The pressure of water tube boiler has a wide range of adaptability, which can break through the pressure limit and meet the steam supply requirements of 2.5MPa or more. Fire tube boilers are limited by material wall thickness and pressure, and are used for pressures below 2.5MPa;
       (2) Fire tube boilers are shell-type boilers. Due to the limitations of the current equipment and tooling of various boiler manufacturers, it is more difficult to manufacture a fire tube boiler that is too large, usually below 35t/h. The water tube structure boiler can realize the large-scale boiler, and the boiler above 35t/h usually adopts the water tube structure; (3) The fire tube boiler has the characteristics of compact structure. Under the same output, the appearance and equipment weight are lower than the fire tube boiler. Due to the larger volume of the water tube boiler, there is more space for arranging the superheater, so the water tube boiler occupies a relatively large boiler room.

Song Gong, a technical engineer at Zhengzhou Fangkuai Boiler Factory, said: No matter how good a boiler is, if you don’t know how to operate, maintain, and deal with emergency problems correctly, you cannot guarantee the safe operation of the boiler. The reason why the demands of workers are getting higher and higher.

Boiler is a kind of special equipment that is heated and pressurized. At present, as the performance and parameters of the boiler are improving, and the equipment structure is becoming more and more complicated, the safety management of boiler users is the prerequisite to ensure the safe and economic operation of the boiler. With the rapid development of boiler technology, our company's requirements for boiler operators must also be improved, and we should keep our eyes on the boiler when purchasing boilers. The quality of the boiler is the first guarantee, so as to ensure that the boiler can always be safe and stable. run.

In order to ensure the safe operation of boilers and prevent boiler accidents, according to the requirements of "Regulations for Periodic Inspection of Boilers", boilers should be inspected regularly. Periodic inspections include external inspections, internal inspections, and hydraulic tests. The boiler can be put into operation only when the internal inspection, external inspection and hydraulic test are all within the valid period.
       (1) Through the internal inspection of the boiler, it can be found whether the pressure-bearing parts of the boiler are cracks, grooves, overheating, deformation, leakage, corrosion, abrasion, scale and other defects that affect safety during operation.
       (2) Through the external inspection of the boiler, it can be found whether the operator has a certificate or works in violation of regulations, whether the boiler safety accessories are operating normally, whether the operation record is complete, whether the safety management personnel conduct regular inspections, etc.
       (3) Through the hydraulic test, it can be verified whether the strength and tightness of the boiler meet the original design requirements.

Zhengzhou Fangkuai Boiler Factory would like to remind you that if the safety management work of the boiler user unit is not in place, it is very prone to boiler operation with diseases, and safety accidents may occur at any time. In the past boiler accidents, it can be seen that, in addition to the quality defects of the boiler itself, most of the boiler accidents are mainly caused by the user’s failure to attach great importance to the basic policy of safe production, the lack of responsibility of the safety management personnel, and the operating personnel operating in violation of regulations, leaving their posts or failing to pay high attention to production safety. Caused by factors such as undocumented employment after training. Therefore, the boiler safety management is a systematic project, which is of great significance to the safety and economic operation of the boiler.