First of all, the boiler manufacturer should be assessed.
       In general, users will have higher quality requirements for commercial boilers.

Second, the boiler must be selected.
       1. Boiler combustion efficiency
       Commercial gas hot water boilers are mainly used for heating and bathing, so it is necessary to provide all-weather, uninterrupted water supply and heat supply. When purchasing, you should first understand the thermal efficiency of the boiler. Attention should be paid to the boiler exhaust temperature, excess air ratio, fuel combustion utilization rate, furnace wall heat dissipation strength, etc. (see the next article for specific factors affecting boiler thermal efficiency). The boiler combustion efficiency directly determines the cost of boiler use.
       2. Boiler circulating water pump
       Among the components operating in gas-fired hot water boilers, circulating water pumps are one of the most vulnerable parts. Boilers with good high temperature resistance, low noise and low vibration should be selected, and the service life of such boilers will be greatly enhanced.
       3. The boiler protection device
       A good boiler not only has high thermal efficiency and resistance to the use of components, but also a protective device. When there are many unexpected situations such as low temperature, high temperature, high water level and low water level, the boiler should have very sensitive and obvious alarm devices to ensure the safety of the boiler.
       4. The boiler anti-seize device
       Considering the special nature of commercial gas hot water boilers, it is necessary to pay attention to whether the boiler has anti-seize devices. This device is related to the service life of the boiler and also relates to the stability of the equipment and cannot be ignored.

Finally, boiler after-sales service is also an important assessment point for users when selecting boiler products.
        A well-established boiler manufacturing brand, even if it is a little expensive, will also feel unlimited safety during use.

Since its establishment, FANGKUAI Boiler has devoted itself to the research and development and manufacture of gas-fired boilers, and has insisted on a boiler brand with sound systems and various safeguard measures. For many years, we have provided boiler equipment for many companies in various industries. If you have any need for boilers, you can get in touch with us through the toll-free hotline. Our professional technicians will be happy to help you.

The low-nitrogen gas boiler is based on the comprehensive improvement of people's living standards, and introduces more efficient, energy-saving, comfortable and convenient, low-emission environmental protection thermal equipment.

What are the benefits of using a low-nitrogen gas boiler?

1. Capacity expansion is good
       As the season changes or other conditions, the user's demand for boiler heat output also changes. Fangchao's low-nitrogen gas boiler can adopt multiple joint-controlled operation modes, and flexibly adjust the number of operating units according to different needs of users, which can meet user needs and avoid unnecessary waste.

2. Small footprint
       After thousands of tests, the boilers have been properly selected. Compared with ordinary gas-fired boilers, the boilers can save more than 20% of the floor space, lower the boiler building infrastructure requirements, and reduce the user input costs.

3. Running quiet
       Fang quickly chooses the internationally renowned brand, Liya Road burner, which has good sound insulation effect, which significantly reduces the noise generated by combustion and flue. The noise is less than 60 decibels (normal speaking sound).

4. A wide range of applications
       Due to the modular design structure of the boiler, the installation and transportation are very flexible, and the emission of harmful substances is very low. It is widely used in large-scale use places such as hotels, office buildings, hospitals, shopping malls, schools, factories, etc.

5. Energy saving and environmental protection
       The boiler cooperates with the natural gas combination proportional control valve and the full premixed fan, which not only ensures an excellent air-fuel ratio, but also automatically adjusts the boiler output to meet the dynamic heat load, so that the boiler heat output curve is as close as possible to the dynamic heat demand curve, Produce invalid output, heat exchange efficiency can reach 108%, realizing energy saving and environmental protection.

Some indoor swimming pools are still open during the cold winter season, mainly due to the indoor use of hot water boilers to heat and heat the water in the swimming pool.

For some places with large area of ​​use, the gas-fired boilers with smaller capacity can not meet the heating demand; therefore, according to the needs of users, the gas boilers with different capacities can be designed with a new design concept, environmentally-friendly and efficient image. The boiler market has been widely recognized and highly evaluated by many customers.

Measuring the quality of a boiler is determined by a variety of factors. Comprehensive judgments such as thermal efficiency, input cost, use effect, environmental protection index, and post-maintenance can make the most comprehensive choice possible.

The gas-fired hot water boiler produced by FANGKUAI Boiler has achieved excellent results in the field of clean boilers with outstanding advantages such as high efficiency, durability, safety and reliability, and simple operation, and has won the favor and recognition of a large number of customers.

Nowadays, there are many brands of gas boilers on the market. Which brand is better?

As a professional manufacturer of clean gas boilers, FANGKUAI Boiler not only has condensing gas boilers, commercial gas boilers, but also full premixed condensing gas boilers, which can provide suitable products for different needs of consumers.

Many users face the problem of installing boilers after purchasing gas boiler products that suit their needs. The technicians of FANGKUAI Boiler have summarized the following precautions for the installation of gas boilers based on years of experience in installing boilers on the customer site.

First, the preparation work before installation
       1. Determine the installation location of the boiler. The unit that installs the boiler must hold the boiler installation certificate issued by the higher authorities in accordance with the installation requirements.
       2. To go through the registration procedures, according to the “Steam Boiler Safety Supervision Regulations”, the units that use the boilers need to go through the registration procedures for each boiler. The boiler user needs to have a person responsible for the work, and is responsible for communicating with the local pot inspection station and docking all installation procedures.
       3. Inspect the boiler and accessories, carry out comprehensive inspection and acceptance of the boiler body, combustion equipment, auxiliary machine parts, etc., and make a record. If it is found that the parts that do not meet the standard are promptly reported to the boiler manufacturer.

Second, the installation work
       1. Boiler body, auxiliary machine, accessory packing box, instrument packing box, etc. need to be hoisted according to the specified position, and the position cannot be changed at will.
       2. There should be enough space around the installation location to facilitate simple maintenance work at the later stage. The boiler door and each inspection hole must be opened.
       3, in the boiler room, you need to leave the air inlet, and also equipped with filters and other equipment, and timely cleaning to prevent blockage.
       4. Do not place flammable and flammable materials, corrosive gases and volatile substances in the boiler room.

Third, the inspection work after installation
       1. After the boiler is installed on the ground, it is necessary to carry out comprehensive inspection and maintenance work to ensure that the boiler will not leak when it is put into operation later.
      

As a square-speed boiler focused on clean fuel boilers for 20 years, FANGKUAI Boiler has considerable industry experience in gas boiler installation and has a very professional user field installation engineer to provide you with services that meet your needs.

When enterprises purchase heating boilers, many indicators such as heating area, building height, and insulation measures are the criteria for determining the type of boiler to be purchased.

As far as the heating area is concerned, FANGKUAI Boiler's existing boiler equipment can reach a heating area of 10,000 square meters for a 1 ton hot water boiler. If it is for large centralized residential areas or heating companies, when the heating area is too large, we will recommend a gas water pipe hot water boiler for you.

Due to its unique structure, the water tube boiler is less affected by capacity and pressure, and can be customized according to user needs. Recently, we have provided a 80-tonne and a 40-ton water-pipe hot water boiler for Gu'an Huaxia Happiness Real Estate Company for heating in residential areas.

Of course, the specific situation needs to be analyzed in detail. We also have a variety of boiler products for small heating areas, such as commercial, condensation series.

The boiler is a device that consumes a lot of energy, and the energy-saving device of the gas boiler is born based on this. In order to save energy, the waste heat of the high-temperature flue gas discharged from the boiler is reused. The manufacturer installs the economizer near the tail of the boiler or near the top flue, which is a component for heating the water supply. The gas boiler installed with the economizer can improve the efficiency of the boiler by lowering the exhaust gas temperature, thereby achieving the purpose of saving fuel.

Classification of energy savers:
       Depending on the application and the exchange medium, the energy saver is mainly divided into flue gas-liquid boiler economizer, flue gas-air boiler economizer and all stainless steel 304 frame plus stainless steel spiral finned tube (high frequency welded pipe), which has fast heat transfer. , energy saving, durable and so on.
       The energy-saving device produced by FANGKUAI Boiler uses a spiral finned tube structure with high heat exchange, which increases the heat exchange area by 5 times compared with the ordinary light pipe heat exchange, and the heat exchange rate is directly increased by about 5 times. It not only meets the energy-saving requirements of boiler operation, but also saves a lot of use area.

Generally speaking, the price of the energy-saving device of the gas boiler is related to various factors such as the volume of the boiler body and the expected effect. If you want to know the specific price of the energy-saving device, you need to communicate with professional technicians according to your own needs.

In the boiler market, a boiler product called “condensing” boiler is getting windy. So what are the advantages of this kind of condensing boiler? What are the advantages compared with ordinary boilers?

First, as the name suggests, the condensing boiler is a boiler that uses condensation technology. The flue gas discharged from the boiler is re-heated by the condensing device, and the sensible heat and steam condensation in the exhaust gas are fully utilized to form the latent heat released by the water droplets. The purpose of boiler thermal efficiency.
       After the traditional boiler is used, the exhaust gas temperature is generally around 160~250 °C, and the water vapor in the flue gas is still overheated, and there is a large amount of unused heat. Generally speaking, the thermal efficiency of the boiler is calculated according to the low calorific value of the fuel. The heat of the latent heat of vaporization in the high calorific value of the fuel is not calculated, so the thermal efficiency of the conventional boiler can only reach about 87%~91%. The condensing boiler added with the condensing technology also recycles the heat of vaporizing latent heat in the flue gas discharged from the fuel, and reduces the exhaust gas temperature to 50-70 ° C, and the boiler thermal efficiency is also improved. If the efficiency of an ordinary boiler is generally around 93%, and the condensing furnace technology can increase it by 15%, it can reach about 108%. Such an energy-saving and environmentally friendly boiler will inevitably lead the development trend of the future boiler industry.
       Taking natural gas fuel as an example, its high calorific value is about 9500kcal/m3, and the low calorific value is about 8600kcal/m3, which is about 900kcal/m3, which accounts for 11% of the low calorific value. Therefore, the choice of condensing boiler will be compared with ordinary boiler. Reduce gas operating costs by about 11%. (See details for high and low calorific value)

Second, the condensing boiler is more environmentally friendly. Compared with traditional coal-fired boilers, condensing boilers generally use clean and environmentally friendly natural gas as fuel. The exhaust gas generated by boiler operation is greatly reduced, and the emission of harmful substances such as sulfur oxides, nitrogen oxides and dust in urban air is alleviated. Environmentally friendly pioneer boiler products.

FANGKUAI Boiler has many years of experience in research and design of condensing boilers. The condensing series boilers have thermal efficiencies of over 107% and nitrogen oxide emissions of less than 30 mg/m3. They are also safe to use and have a long service life. The operation has many advantages such as low heat loss and has been widely used and used by users after being put into the market.

First, choose the brand
       When major boiler manufacturers sell their products, they always list all kinds of advantages and promises to the after-sales service, but they can do exactly what they promise. Therefore, when choosing a boiler, we must also consider the brand of the boiler manufacturer. Try to choose a boiler manufacturer with excellent product quality and good after-sales service to ensure your rights and interests.

Second, select power
       When the electric boiler is used for heating, it needs to select the appropriate power according to the heating demand. If the power is too large, it will waste money, and the power is too small to meet the user's requirements. Generally speaking, the outlet temperature of electric boilers used for heating is above 70 °C. After 30 minutes, the temperature of the radiators of each household can reach about 75 °C; the heating area of ​​one cubic meter needs about 35W of heat, you can combine your own The required heating area is calculated to obtain the specific electric boiler power.

Third, choose technology
       A good electric boiler should have high thermal power and fuel utilization, and it has a good experience in terms of insulation effect, safety protection, operating system and so on.

The electric boiler body produced by FANGKUAI Boiler adopts reliable hydropower separation design, which has better safety. At the same time, it has multiple protection measures such as multiple water level, water temperature, secondary overheating, over temperature, leakage, antifreeze and power supply abnormality, among which antifreeze protection It is a unique patent technology that guarantees the safe operation of electric boilers.
       An inspection hole is arranged on the top of the boiler body, and a hand hole is arranged at the bottom for convenient inspection and maintenance.
       The boiler also has a variety of automatic control functions, which can be operated through the boiler's own operation interface to reduce manual consumption.
       The thermal insulation material is made of high-grade centrifugal glass wool for multi-layer insulation, the thermal insulation effect is good, and the thermal efficiency is naturally improved.

For many users who want to open a bath, it is a headache to estimate how much boiler is needed based on the number of nozzles and the amount of water used. Below, we will take 100 nozzles and an average bath temperature of 40-60 °C as an example to answer your need for boiler equipment.

When calculating the boiler capacity, it is necessary to use 100 nozzles (the highest value) at the same time as the standard, and temporarily ignore how many people use at the same time, but use the number of nozzles as the estimation unit, as long as 100 nozzles are used at the same time.

An adult bathing water is about 0.2-0.3 tons per hour, and 100 nozzles use 20-30 tons per hour. Therefore, it is only necessary to satisfy a boiler that can supply hot water between 20-30 tons per hour. Considering the various factors such as the difference in bath water temperature, we estimate that 100 bathing nozzles will require a 2 ton bath boiler. If it is necessary to carry out the heating of the bath, it is necessary to calculate according to the actual heating area. You can tell our online customer service about your heating area and bathing nozzles, and the technician will give you a detailed analysis later.

At the same time, in addition to the boiler tonnage problem, there is a need to choose fuel. It is best to use fuel or gas boilers in the baths in towns. These two types of boilers are not only environmentally friendly but also well managed, and do not require special space for fuel storage. Also pay attention to the choice of water tank. Generally speaking, the boiler and water tank should select the maximum value, which can not only meet the needs, but also effectively avoid the boiler overload operation and prolong the service life of the equipment.

A 1 ton natural gas boiler consumes 75-80 cubic meters of natural gas per hour.

The gas consumption of a natural gas boiler can be calculated according to the following formula: gas consumption per hour of natural gas boiler = boiler thermal efficiency / natural gas calorific value / boiler efficiency. From the above formula, it can be concluded that the gas consumption of natural gas boilers mainly depends on boiler capacity, natural gas calorific value and boiler efficiency, while boiler capacity and natural gas calorific value are generally unchangeable, which can determine the amount of gas consumed per hour of natural gas boilers. It is the combustion efficiency of the boiler.

The combustion efficiency of a boiler generally depends on the quality of the boiler. Since its establishment, Fangkuang Boiler has been studying natural gas boilers with many patented technologies. The boiler combustion efficiency can reach more than 107%. The fuel can be fully burned. The higher the boiler combustion efficiency, the lower the fuel input cost, which saves you. The fuel cost of the boiler is the best choice.

1. When the gas steam boiler rises from cold ignition to working pressure, the temperature rise and pressure time is generally controlled at 3 to 4 hours. When the boiler pressure rises to 0.05~0.1MPa, the boiler pressure gauge and water level gauge should be flushed; when the boiler pressure rises to 0.15~0.2MPa, the air valve on the boiler should be closed and the safety valve should be checked for leakage. If there is leakage, measures should be taken. When the boiler pressure rises to 0.2~0.25MPa, the boiler shall be subjected to a sewage test. When the sewage is discharged, the boiler water level should be higher than the normal water level, and check whether the sewage valve leaks. If there is leakage, measures should be taken to eliminate it; When the pressure rises to 0.3 MPa, it is necessary to thoroughly inspect the fastening parts of the pressure components of the boiler, such as the manhole, the hand hole, the inspection hole and the bolts connected to the flanges, and perform a hot tightening.

2. The pump can check whether it can maintain the normal water level under the automatic running state. The water level can be started normally below the “starting pump line”, and the water level can stop working in the “stop pump line”.

3. Is the pressure control normal? When the steam pressure reaches the set value, the combustion stops and the overpressure lamp lights up. When the pressure drops to the set value, the boiler can start automatically.

4. When the pressure reaches the load set value, the load is transferred from a large fire to a small fire. When the pressure drops to the set value, it is turned from a small fire to a large fire.

5. When the pressure cannot be stopped under the normal set pressure condition, the second overpressure will alarm and stop the furnace, and must be restarted.

6. The exhaust gas temperature can not exceed 300 ° C, otherwise it should be shut down for inspection.

7. When the gas-fired steam boiler enters the normal operation stage, the boiler boiler personnel should strengthen the monitoring of the boiler body, safety accessories and instruments and auxiliary equipment, and earnestly carry out the patrol inspection of the boiler and auxiliary equipment and fill in the operation record in time.

The above is the precautions for the operation of the gas steam boiler introduced by FangFeng Boiler. Anyone who operates the boiler must be familiar with the performance of the boiler and related safety knowledge. If the certificate is on duty, non-employed personnel are strictly prohibited from operating. The duty officer should carefully record the operation record and handover record in strict accordance with the regulations. The handover class should be equipped with equipment and The safety situation of the operation is carried out, and the boiler should be inspected for properness when handing over the shift.

Operating the gas boiler in strict accordance with the guidelines can not only achieve efficient operation of the boiler, but also ensure the safe operation of the boiler to avoid harming the interests of the enterprise and personnel. Fangfeng Boiler summarizes the following safety operation specifications to avoid accidents in gas boilers. It is hoped that it can help everyone's boiler equipment and keep away from boiler safety accidents.

First, the furnace operation
       1. The furnace worker must go through the inspection work ticket when working in the furnace, and there is a special person responsible for supervision and on-site management.
       2. Only when the temperature in the furnace drops to a temperature that can be tolerated by the human body (below 80 °C).
       3. The power supply is selected for safe voltage, and the power tool is double insulated.
       4. When welding in the boiler, keep the ventilation state, and can not carry out the welding and gas welding work at the same time.

Second, the safety valve calibration
       1. The safety valve calibration is completed by four or more personnel under the leadership of the foreman; before the furnace, wear gas masks, helmets and other protective facilities.
       2. Before the calibration, check the safety valve outlet pipe is in good condition to avoid the steam rushing out and hurting people during the calibration process.
       3. The safety valve is in the return position, the pressure is lower than 3MPa, the fixed direction should be far and near, and the adjustment displacement is less than 50mm.

Third, the start and maintenance of drums, induced draft fans and pumps
       1. Before starting, the operator must arrive at the site to check the status of the equipment and make sure that no personnel can be repaired before starting.
       2. Before the inspection, the maintenance work ticket should be handled, the power supply should be disconnected, and the warning sign of “some people work prohibited closing” should be placed at the switch cabinet.
       3. Into the drum, induced fan maintenance, must be guarded by someone.
       4. Before the service pump is repaired, it must be ensured that the valve is completely closed and there is no leakage.
       5. After the overhaul, check whether the coupling, the wheel cover and the manhole door are tight; after determining that there is no one in the fan, take back the work ticket and start the on-site test drive.

Fourth, mechanical injury
       1. When opening and closing the furnace door, wear gloves and open the body side.
       2. Wear professional glasses when watching fire.
       3. When checking the rotating equipment, do not face the opposite wheel.
       4. Flush the water level timing, the body should not face the water level gauge.