Users in the hotel industry need to use boilers for heating and heating. Taking into account the particularity of hotels and other places-the flow of people is relatively large, the requirements for heating boiler equipment are also relatively high. Zhengzhou Fangkuai boiler manufacturers have summarized some of the issues that users in the hotel industry need to pay special attention to when selecting heating boilers. Let's take a look.

First of all, when purchasing a gas boiler, you should consider the water consumption of the hotel or hotel: 1. Consider the water use of the hotel: guest rooms and other places where water is needed.
       2. There are a total of several buildings in the hotel, how many floors each building has, and how many rooms there are on each floor.
       3. Is there any possibility of heat recovery (air compressor, generator, injection molding machine, steam exhaust, etc).
       4. Prepare the installation site (length, width, orientation, and surrounding building conditions).

Secondly, we must consider the water supply form of hot water projects in hotels, hotels and other places.
       1. The independent solar water heater project has a large initial capital expenditure and relatively low operating cost, but it is easily affected by the climate.
       2. For the independent air energy water heater project, the initial capital expenditure is relatively large and the operating cost is low.
       3. The air energy solar water heater project has a large initial capital expenditure, the lowest operating cost, and is not affected by the climate. The combination of the two has the best effect.

It is more important to choose a professional manufacturer with excellent quality, outstanding reputation and high-end brand.

Nowadays, there are all kinds of gas boiler brand manufacturers on the market, and many companies have some problems, such as using unenvironmentally friendly materials to shoddy them, and problems such as no after-sales service after the installation of factory hot water engineering equipment. Therefore, you must choose a strong manufacturer when purchasing a gas-fired modular boiler.

Energy saving and emission reduction is the main direction of my country's current environmental protection. For users, energy saving can save a lot of investment and cost, and emission reduction is very good for the environment. Especially for industrial boilers that support the advancement of thermal power in industrial production, energy-saving and emission reduction show the technical level of boiler production. Following the successive implementation of the national energy conservation and environmental protection policy, traditional coal-fired industrial boilers have been gradually replaced by natural gas steam boilers, and an energy-saving and environmental protection innovation has taken place in the field of industrial thermal power.

In addition to transforming traditional industrial coal-fired boilers into natural gas steam boilers, methods can also be adopted to save energy in the operation of natural gas steam boilers. Zhengzhou Fangkuai boiler manufacturer summarized the following methods that can promote energy saving and emission reduction of gas steam boiler:

1. Reasonably select the rated power of natural gas steam boilers and the number of boilers according to the amount of steam required by industrial production. The higher the match between these two conditions and the actual use, the smaller the exhaust gas loss, and the more significant the energy saving.

2. Adequate touch of fuel and air: Let the right amount of fuel and the right amount of air form the best proportion for incineration, which can improve the incineration power of the fuel, but also reduce the emission of polluting gases and achieve the goal of two-tier energy saving.

3. Decrease the exhaust gas temperature of natural gas steam boilers: reduce the exhaust gas temperature of the boiler to use the waste heat generated in the exhaust gas. The power of the commonly used boiler is 85-88%, and the exhaust gas temperature is 220-230℃. If an energy saver is installed and the exhaust gas heat is used, the exhaust gas temperature drops to 140-150℃, and the boiler power can be increased to 90-93%.

4. Recovery of the heat of the boiler blowdown water: The heat in the continuous blowdown is used through heat exchange to increase the feed water temperature of the deoxidized water to the energy-saving intention of the natural gas steam boiler. At the same time, the energy-saving method of natural gas steam boilers can also reasonably recover the condensed water in the heating system and recover the heat of the condensed water for use.

If users use steam boilers and pressurized hot water boilers, they need to be sent to relevant departments for annual inspection. This is mainly to ensure the safety of boiler equipment. However, the annual inspection takes a certain time, which will delay our normal boiler. use. At present, Zhengzhou Fangkuai Boiler Factory has withdrawn a series of boiler equipment that can be used directly without annual inspection, saving users a lot of trouble.

The "Boiler Safety Technical Regulations" is not applicable to steam boilers with a designed normal water level and volume less than 30L, which means that there is no need to apply for registration in accordance with the above regulations, no need for operators to hold certificates for work, and no regular inspections.

When the normal water volume of a steam boiler is less than 50L, it belongs to a Class D boiler, which means that there is no need to register for use in accordance with the above regulations, no need for operators to hold a certificate to work, and no regular inspections.

Hot water or thermal oil boilers with a rated thermal power of less than 100kW do not need to register for use in accordance with the above regulations, do not require operators to hold certificates, and do not require regular inspections.

The design of steam boilers with normal water level volume <30L does not require special equipment production qualification, and steam boilers above 30L need to have special equipment production qualification

Hot water or thermal oil boilers with a rated thermal power greater than 100kW need to have special equipment production qualifications.

Although the boiler does not require annual inspection, our own inspection work is indeed indispensable, which is also to ensure that the boiler can operate safely.
       (1) Periodic inspections of boilers include external inspections when the boiler is in operation, internal inspections and water (withstand) pressure tests when the boiler is shut down;
       (2) The boiler user shall arrange the regular inspection of the boiler, and submit an application for regular inspection to the inspection and testing agency one month before the next inspection date of the boiler. The inspection and testing agency shall formulate an inspection plan.

Natural gas steam boilers are boiler equipment frequently used by users in recent years. The boiler uses natural gas as fuel, which is clean and environmentally friendly, and it is more convenient to use. So, for users, what aspects should they look at if they want to buy a good natural gas steam boiler? Let Zhengzhou Fangkuai Boiler Factory tell you the answer.

1. Brand: A brand is accumulated by the reputation of users, so we have to choose some powerful boiler brands, but don't blindly choose some small brands. It is difficult for many small-brand boiler plants to find after-sales service departments.

2. Function: The function of the steam boiler includes exhaust gas temperature and thermal efficiency. The higher the thermal efficiency, the better, and the lower the exhaust gas temperature, the better.

3. Efficiency: We must choose a manufacturer with good after-sales service before buying, because once the shortcomings appear, it will directly affect the production.

4. Price: What we need to compare is not only the price of the steam boiler, but also the accessories, operating costs, etc. of the steam boiler.

5. Safety: Safety is the most important element we need to consider, and safety is the basis for using boiler equipment.

6. Operation: Some steam boilers are more cumbersome to control, and they are not familiar with the operation after they are bought back. The efficiency of use cannot be improved.

7. Energy saving: Energy saving and emission reduction are related to the cost of our use, so we need to choose energy-saving and efficient steam boilers.

8. Speed: The speed of start-up will affect our production, so in general, the steam boiler will not be turned on every day. Assuming that the time for each launch is too long, then not only fuel but also production time is wasted.

9. Equipment: What we want to choose is not only a boiler body, but also other accessories such as water softening equipment, safety valves, sub-cylinders, and pump sets.

For gas-fired boilers, operational efficiency is defined as the percentage of the boiler's effective heat utilization per unit time as a percentage of the boiler's heat input, or as a percentage of the effective heat utilization per kilogram of fuel (solid and liquid), or per standard cubic meter (gaseous fuel).

The thermal efficiency of the gas-fired boiler refers to the percentage of the effective heat in the heat sent by the fuel. The thermal efficiency of modern gas-fired boilers is relatively high, at about 90%. By using the technologies of condensation, FGR and full premixed combustion, zhengzhou Fangke boiler manufacturer has achieved over 98% thermal efficiency of the gas-fired boiler, which can be said to be very energy-saving and economical.

The negative pressure gas boiler can guarantee the smoke circulation unobblocked, the induced draft fan draws the negative pressure, the blower takes in the air, the balanced ventilation, guarantees the sufficient oxygen content, improves the combustion efficiency! About wiring this is convenient boiler and the parameter that each kind of accessory equipment sees, convenient in boiler room operation control! They generally include solenoid valves, thermocouple thermometers, ammeters, flowmeters, contact water meters, and various alarm devices.

As for the gas boiler operation process, for different structures and models of the boiler, the operation mode is also different, but it is necessary to maintain the normal combustion, normal water level, normal temperature, normal pressure.

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.

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.

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.

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.

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.

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.

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.