Boiler Knowledge

Which steam boiler is better to use in the brewing process of a winery?

The history of winemaking in our country is very long, dating back thousands of years. The ancient winemaking process is more cumbersome to operate. With the development of modern technology, the winemaking process has become more sophisticated. In the brewing process, there are two processes inseparable from steam, one is fermentation and the other is distillation. The steam boiler is an important production equipment for the winery.

I believe everyone knows that the temperature and purity of steam produced by different types of steam boilers are different, and the operating costs are also different. In the past, because the production technology was not very advanced, wine-making enterprises used coal-fired steam boilers for production. However, with the development of technology, there are many types of steam boilers that can be used now. You can pursue higher cost performance according to actual needs. Steam boiler.

1. Fuel gas steam boiler
       Oil-fired gas-fired steam boiler is a type of boiler that uses oil, gas, etc. as fuel. With the implementation of the West-East Gas Pipeline, the price of natural gas has dropped to a certain extent, and the operating efficiency of oil-fired gas-fired boilers is very high. The operating efficiency of such boilers launched by Zhengzhou Fangkuai Boiler Factory can reach as high as 107%. At present, there are more companies using oil-fired and gas-fired steam boilers for winemaking.

2. Biomass steam boiler
       Biomass steam boiler uses biomass pellets made from agricultural and forestry waste as fuel. Biomass particles have a wide range of sources and are relatively easy to obtain. Since the wine tank produced in the winemaking process can also be used as fuel, biomass steam boilers are also one of the choices for many wineries to purchase boilers.

3. Electric heating steam boiler
       Electric heating steam boiler is a kind of boiler equipment that converts electric energy into heat energy. There is no combustion phenomenon during the capacity conversion process. Therefore, the operation process is pollution-free and noise-free, and has been loved by many wineries.

The above-mentioned types of boilers are the types of steam boilers that brewing companies choose to use. Of course, as to which one to choose, you should make a reasonable choice based on your actual needs and your own situation. It will be more efficient to directly consult a professional boiler manufacturer.

2021-07-31 09:42:50

Poor water quality will cause extremely serious harm to oil and gas boilers

Water is one of the indispensable substances in the operation of oil and gas boilers. If the boiler wants to produce a large amount of steam or hot water, it needs a large amount of water to enter the boiler. It can be said that the water quality is very important for the boiler. . If the boiler inlet water is of poor quality and flows directly into the boiler without any treatment, it will bring extremely serious harm and adverse effects to the oil and gas boiler.

1. Poor water quality will cause scale in oil and gas boilers
       When suspended solids, colloids, and inorganic salts are heated or exceed their saturation concentration, they will settle and precipitate, forming sludge and scale, which greatly affects the boiler's heat transfer efficiency and boiler water circulation, fuel waste, heating surface damage, boiler output decline, and cleaning Increase in volume. There is a scale of 1 mm thick, which wastes 10% of fuel. When a boiler of 10 kgf/cm2 runs without scale, the tube wall temperature is 280. C. After 1 mm thick silicate scale is formed, the temperature of the tube wall rises to 680 due to the increase in thermal resistance. C. At this time, the strength of the steel plate is reduced from 40 kgf/cm2 to 10 kgf/cm2, which causes the pressure of the boiler to drop, and the furnace wall cracks, bulges, or even bursts. When the scale is serious, serious accidents such as blockage of furnace tubes, waterways, boiler shutdown and boiler explosion, etc. occur. The boiler shutdown causes freezing and cracking of production equipment and heating equipment also occur from time to time.

2. Poor water quality will cause corrosion of oil and gas boilers
       Poor water quality causes metal corrosion, which leads to the destruction of boiler metal components. The metal corrosion products form new structural materials and produce under-scaling corrosion, which accelerates the damage of metal components.

3. Poor water quality will cause oil and gas boilers to produce steam and water.
       The phenomenon that the water droplets in the furnace drum of the steam boiler are taken away by the steam is called co-leakage of steam and water. One of the reasons for this is that the water contains more impurities such as sodium chloride, sodium phosphate, silicide, and organic matter. The production of steam and water will cause serious pollution of the steam, the superheater tube and the steam circulation tube will accumulate salt, and the pipeline will be blocked in severe cases, the steam temperature will drop, water will be produced and corrosion will be broken.

4. Poor water quality will cause caustic embrittlement of oil and gas boilers
       Caustic embrittlement refers to the irregular damage-explosion caused by low-carbon steel, alloy steel and stainless steel when the tensile stress exceeds the yield point and at the same time is in contact with the concentrated caustic soda solution.

Through the Zhengzhou Fangkuai Boiler Factory, I will explain to you the harmful effects of poor water quality on oil and gas boilers. For units that do not pay much attention to water treatment, the operating conditions of their boilers are often: one year is good, two years old, and three years burn out. This will not only bring huge economic losses, but also cause major safety accidents such as production shutdowns and explosions.

2021-07-29 09:40:32

Ways to ensure the safe operation of gas boilers

Gas-fired boilers have become one of the first-choice equipment for many enterprises and units during production and processing, and are widely recognized for their high efficiency, energy saving, and environmental protection characteristics. As the gas boiler is a special equipment, it is particularly important to ensure that it can always operate safely. How can we ensure the safe and stable operation of the gas boiler? The professional technical engineers who have worked in Zhengzhou Fangkuai Boiler Factory for many years will answer you.

1. Make sure to use the correct specifications for operating gas boilers
       Boiler accidents caused by improper operation are a very common one, so this requires that professional furnace personnel must strictly operate the boiler in accordance with the boiler operation regulations when the boiler is in operation.

2. Strictly manage the gas boiler room
       The boiler room is the place where the boiler is placed. The safety of the boiler room is directly related to the safe operation of the boiler. Open flames are strictly prohibited in the boiler room, and fire-fighting equipment must be provided.

3. Correct handling in case of emergency in a gas boiler
       Nothing is 100% safe. If there is an emergency during operation, you must make a prediction plan in advance, such as water cuts, power cuts, burns, insufficient pressure or equipment failures, etc., and you must have the ability and be able to solve them in time .

4. Cultivation of employee safety awareness
       Users regularly provide employees with boiler safety training to promote employees' safety awareness.

5. Scientific maintenance after shutdown
       The safe operation and maintenance of gas boilers is very important. Boiler maintenance can not only extend the service life of the boiler, but also play an important role in the safe operation of the boiler.

The above are the five aspects that Zhengzhou Fangkuai Boiler Factory summarized for you to ensure the safe operation of gas boilers. If you strictly follow the above aspects, I believe that the boiler will be used for ten or even twenty years without problems.

2021-07-25 09:39:28

The method of gas steam boiler when trying to run

For special equipment such as gas-fired steam boilers, it is very necessary to carry out trial operation, so that the quality of the main boiler and its supporting equipment can be more comprehensively tested, and the user can better understand the operating mode of the boiler, which is a guarantee Important procedures for safe, reliable and economical operation of the boiler during subsequent operation.

So, what are the methods when the gas-fired steam boiler is trying to operate? Let the professional boiler manufacturer, Zhengzhou Fangkuai Boiler Factory, briefly describe the operation method of the gas-fired steam boiler during trial operation.

1. Open the water inlet valve, close the steam outlet valve, start the feed water pump to inject water into the steam boiler furnace (it should be softened water), and the water level should reach the normal water level of the water level gauge, and check whether the water level is stable. If the water level drops, check the steam boiler blowdown. Whether the valve is not tightly closed.

2. The ignition temperature rises, and the initial temperature rise and pressure rise need to be slow. Generally, the time from the initial pressure rise to the working pressure is about 3~4h. During this period, the water level gauge should be flushed. At the same time, observe whether the pressure gauges on both sides of the steam boiler are consistent, and check whether there is any leakage of steam at the inlet hole.

3. When the steam pressure of the steam boiler is stable, if the safety valve is adjusted in advance at the end of the opening action pressure, the pressure adjustment can be carried out, but attention should be paid to strictly control the steam pressure in Shanghai; first adjust the one with the higher opening pressure, and then reduce the pressure Then adjust the other one with low opening pressure; for example, multiple steam boilers should be adjusted individually.

4. During the trial operation, drainage should be performed to check whether the blowdown valve is opened and closed normally, and at the same time, the steam boiler should be filled with water to ensure the normal water level.

5. After all the above are normal, gradually open the main valve of the steam boiler to warm the pipe. Generally, it can be sent to the sub-cylinder, and then open the emergency vent valve to discharge to the outdoors. At this time, make up water in time, observe the change of water level, and ensure the steam pressure in the steam boiler. The water should be supplemented according to the principle of less frequent supplementation. Avoid excessive water replenishment at one time from affecting the steam pressure. The steam boiler should be operated continuously for 72 hours. During the trial operation, if there is no abnormality in the operation of the equipment and the water supply system, the steam can also be officially sent to the external pipe network and steam point.

2021-07-23 09:38:08

Structural characteristics of water tube boiler

Water tube boiler is a common boiler type, mainly composed of vertical drum, water wall tube, convection tube bundle and left and right headers. The boiler tonnage is relatively large, generally about 10-100 tons. The water tube boiler is the star product of Zhengzhou Fangkuai Boiler Factory. The unique characteristics of energy saving, environmental protection, high efficiency, low emission and rational structure design of the boiler have been recognized by many industry users after being introduced into the market. The market share is also increasing year by year.

At present, single vertical drum water tube boilers are divided into two types: light furnace wall integral furnace type and heavy furnace wall bulk furnace type.

The drum is arranged longitudinally in the center of the upper part of the furnace, and two sets of convection tube bundles and water wall tubes are arranged on both sides of the furnace, symmetrical to the left and right, similar to the A shape. The high-temperature flue gas enters the left convection flue from the left side of the back of the furnace, passes through the transverse flue at the front end of the drum from back to front, turns into the right convection flue, and then flows from front to back to the economizer, passing through the guide The fan and chimney are exhausted.

The single-longitudinal water tube boiler has the following advantages: it adopts one drum, which saves steel; the furnace body is A-shaped, and the furnace top insulation layer is convenient to lay; there is no partition wall in the convection tube bundle on both sides, and the structure is simple.

Of course, this design also has certain defects: the water capacity of a single drum is small, and the vapor pressure and water level fluctuate greatly during operation; it requires high water supply quality and operation management level.

Combining the advantages and disadvantages of water tube boilers explained by Zhengzhou Fangkuai Boiler Factory, you can choose the really suitable boiler equipment according to the actual situation of your own business needs.

2021-07-21 09:36:48

How does the gas-fired steam boiler complete its normal operation?

Gas-fired steam boiler is a kind of thermal energy conversion equipment that uses natural gas, liquefied gas, city gas and other gas fuels as fuel, and the heat released in the furnace heats the water in the boiler and vaporizes it into steam. , Medicine and other industries have applications. How does the gas-fired steam boiler complete its normal operation? Many users are very curious about this question, Zhengzhou Fangkuai Boiler Factory is here to answer it for everyone for free.

The water in the pot (drum) is continuously heated by the energy released by the combustion of the gaseous fuel in the furnace, and the temperature rises and generates pressurized steam. Because the boiling point of water rises with the increase in pressure, the pot is sealed and steam The expansion inside is restricted to generate pressure to form thermal power (strictly speaking, the steam of the boiler is formed by heating water in the drum at a constant pressure to saturated water and then vaporizing), which is widely used as an energy source.

The boiler is mainly composed of two main bodies: the shell and the boiler, the accessories to ensure its safe, economical and continuous operation, the auxiliary equipment of the instrument, and the automatic control and protection system. This kind of boiler is a drum-type boiler with a water-cooled wall. Two return pyrotechnic tubes are arranged in the left and right sections of the drum, and the front smoke box at the front of the drum is folded back. Between the drum and the lower connecting box, there are a downcomer and a water-cooled pipe, which constitute the frame of the combustion chamber. There is a steam-water separator on the upper part of the drum to reduce the water brought out by the steam. The heating surface of the pot body is the lower part of the pot, the water-cooled wall tube and the pyrotechnic tube.

2021-07-19 09:36:05

Safety common sense when using gas hot water boiler for heating in winter

Winter is the peak season for using gas-fired hot water boilers for heating. Many users will purchase suitable boiler equipment in advance and carry out related debugging work before the heating season comes to prepare for normal use during the heating season. The technical engineers of Zhengzhou Fangkuai Boiler Plant summarized the following common sense about safety when using gas-fired hot water boilers for heating in winter, hoping to help everyone better operate the boiler equipment.

1. Strengthen the safety management of the boiler room, master the operation of the gas boiler, be familiar with the emergency handling methods of the boiler, and promptly rectify the self-inspection problems.

2. Boiler room management personnel, furnace managers, and water quality test personnel should hold certificates to work, implement various systems, and keep operational records.

3. It is strictly forbidden to put into use boilers without safety accessories such as safety valves and pressure gauges that have not obtained a certificate of use, have not been regularly inspected or have not passed the inspection. The illegal operation and operation of the boiler are strictly prohibited.

4. During the operation of the gas boiler, the steam pressure, water level and temperature should be ensured to be normal, and the automatic control device should be intact.

5. Do a good job in the patrol inspection of the boiler room, discover and properly handle potential safety hazards in a timely manner. Reasonable gas supply, save gas supply, prevent running, leaking, dripping and leakage, and prevent scalding.

6. It is necessary to ensure that the hot water boiler is not pressure-bearing, and the vent pipe is unblocked to prevent the vent pipe from being frozen.

2021-07-17 16:20:41

What are the advantages of Fangkuai Boiler's new gas boiler?

As a leader in the field of clean and environmentally friendly boiler equipment, Fangkuai Boiler has invested a lot of time and energy for many years to actively carry out research and development and testing, only to provide users and friends with better quality, higher operating efficiency and longer service life. Longer, more cost-effective boiler equipment. In 2021, what advantages does Fangkuai Boiler's new gas-fired steam boiler have that ordinary gas-fired boilers do not have?

1. Start-up operation of gas-fired steam boiler: minimalist operation, extremely fast startup
       The boiler adopts wing tube + threaded tube, the heat flow density on the flue gas side is increased; the heat exchange element is small and the heat absorption capacity is strong; the radiant heating element is connected with a linear expansion ring, and the elongation of the furnace bladder caused by heating is absorbed by the expansion ring. The additional stress on surrounding components is small; the eccentric arrangement is beneficial to the natural circulation of water in the boiler, the boiler water quickly reaches temperature balance, the boiler shell temperature is uniform, and the temperature difference stress is small. In the end, the boiler water volume is reduced to below 45% of conventional products to meet the industry demand for fast heat engines.

2. The operating state of gas-fired steam boiler is more balanced.
       The steam condensed return water produced by the boiler is consistent with the boiler water cycle to maintain the dynamic balance of the medium load; the boiler also has a larger steam space design to alleviate the risk of low water level caused by a large amount of backwater inrush instantaneously or a long time delay. The method of circulating the water tank and the air heater transfers energy to the combustion air. Make the water tank have heat capacity.

3. The utilization effect of gas-fired steam boiler is more full.
       Shutdown: After the furnace is shut down, the maximum capacity of the system to reflux condensate is saved for use in the next production cycle.

Steam condensate is slowly reduced in pressure and returned, adjusted by a pneumatic valve, so that the condensed return water is supplied to the appropriate height of the furnace body, ready for the next operating cycle; when it is running again, the furnace is started under heavy load, and the expansion of the boiler water just reaches the target water level Range, without manual intervention on the water level repeatedly.

2021-07-15 16:19:49

Ways to improve the energy-saving effect of gas boilers

In recent years, gas boilers have sprung up in the boiler market. Once they are introduced into the market, they have been widely loved and trusted by users and friends. Therefore, the frequency of use is also increasing year by year. Energy-saving is a problem that needs to be considered in industrial production, especially for industrial boilers that increase thermal power support for industrial production. Energy-saving reflects the technical level of the boiler industry. In addition to transforming traditional industrial coal-fired boilers into natural gas steam boilers, measures can also be taken to save energy during the operation of natural gas steam boilers. The technical engineers of Zhengzhou Fangkuai Boiler Factory compiled the following measures for energy-saving gas boilers:

1. Reasonably choose the rated power of the natural gas steam boiler and the number of boilers according to the amount of steam required for industrial production. The higher the matching degree between these two conditions and the actual use, the smaller the exhaust loss and the more obvious the energy saving. 

2. Full contact between fuel and air: Let the right amount of fuel and the right amount of air be combusted in the best ratio, which can not only improve the fuel combustion efficiency, but also reduce the emission of polluting gases, and achieve the goal of double energy saving.

3. Reduce the exhaust gas temperature of natural gas steam boilers: reduce the exhaust gas temperature of the boiler to effectively use the waste heat generated in the exhaust gas. The efficiency of the commonly used boiler is 85-88%, and the exhaust gas temperature is 220-230℃. If the energy saving device is installed and the exhaust heat is used, the exhaust gas temperature will drop to 140-150℃, and the boiler efficiency can be increased to 90-93%.

4. Recovery and utilization of the heat of boiler sewage: the heat in the continuous sewage is used through heat exchange to increase the temperature of the itching water to achieve the purpose of energy saving for natural gas steam boilers.

At the same time, the energy-saving measures of natural gas steam boilers can also reasonably recover the condensed water in the heating system and recover the heat of the condensed water.

2021-07-13 16:16:12

How to deal with water shortage in oil and gas boilers

When it is found that the oil and gas steam boiler is short of water, the water level gauge can be flushed to "call water" to determine whether it is a slight water shortage or a serious water shortage. The steps of the "call water" operation are as follows:
       1. Turn on the drain cock of the water level gauge;
       2. Close the steam cock of the water level gauge;
       3. Close the drain cock of the water level gauge.
       At this time, if there is a water level in the water level gauge, the boiler is slightly short of water, otherwise it is severely short of water.

1. When the boiler is slightly short of water, you can first turn on the steam cock of the water level gauge to restore the normal operation of the water level gauge, reduce fuel and air supply, weaken the combustion, slowly feed water to the boiler, and quickly find out the cause of the boiler water shortage. When the boiler water level gradually returns to above the lowest safe water level, increase fuel and air supply to resume normal combustion of the boiler.

2. When the boiler is seriously short of water, do not fill the boiler with water, because at this time the boiler may be dry, and the boiler metal may be in a state of overheating or burning red. Once water is added, serious danger will occur. When the boiler is seriously short of water, it should be shut down immediately according to the prescribed procedures.

2021-07-11 16:15:54

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