For garment factories and garment factories, choosing a suitable steam boiler can often achieve a multiplier effect with half the effort. The appropriate steam boiler is directly related to the production efficiency and cost expenditure of the enterprise, but each garment factory enterprise has different characteristics of production conditions and needs, and specific problems need to be analyzed in detail when choosing a steam boiler. Zhengzhou Fangkuai Boiler Factory summarizes the points that garment factories need to pay attention to when purchasing steam boilers for your reference and understanding.

1. Energy saving and money saving. A steam boiler is needed for washing, drying, ironing, etc. in garment factories, which shows that the total steam consumption is large. Therefore, when choosing equipment, we should take energy consumption into consideration. If the electricity load in the plant is sufficient, and the local electricity bill is cheap, and there are even low electricity discounts, you can consider using electricity to heat the steam boiler; if these conditions are not met, but the plant has natural gas pipelines, it is generally better to use gas-fired steam boilers .

2. It is environmentally friendly and more environmentally friendly. While the country has adopted various measures to promote energy conservation and emission reduction, it has also put forward higher requirements for the use of steam boilers in garment factories, which are generally different in different regions. For example, first-tier cities have very strict requirements for nitrogen oxide emissions, and electric steam generators are more suitable; second and third-tier cities, if you feel that the later cost of electrical equipment is too high, you can choose gas or oil-fired steam boilers; and then remote rural or mountainous areas , Often the environmental protection requirements are slightly loose, and can be selected flexibly according to needs.

3. Steam characteristics. Such as steam cleanliness, dryness, pressure, temperature, etc., different types of work have different requirements for steam. The selection should be based on the needs of the corresponding garment factory.

Based on the above points mentioned by Zhengzhou Fangkuai Boiler Factory, you can choose a steam boiler that saves money, is environmentally friendly, and can meet production needs according to the specific conditions and steam characteristics of your own garment factory.

The 8-ton steam boiler can output at least 8 tons of high-temperature steam per hour under stable operation. If the overall quality of the boiler is good and the maintenance is in place, it is not impossible to output more than 8 tons of steam per hour. Many users have questions about the amount of natural gas that the boiler needs to work for a day when communicating with the technical engineers of Zhengzhou Fangkuai Boiler Factory. Zhengzhou Fangkuai Boiler Factory will answer for everyone.

To know how much natural gas is needed for an 8-ton steam boiler to work a day, this is related to the operating efficiency of the boiler. The higher the operating efficiency, the more gas-saving, and the less natural gas fuel is needed every day. The operating efficiency of the 8-ton steam boiler launched by Zhengzhou Fangkuai Boiler Factory can reach at least 95%, and the consumption of natural gas per hour is about 560 cubic meters. After one day of operation, it saves at least 30 cubic meters of natural gas compared with ordinary steam boilers on the market. If things go on like this, it will save a large amount of input costs for enterprises.

For questions similar to "How much natural gas does an 8-ton steam boiler need to work a day?", "Steam boiler gas consumption per hour?" and other questions, everyone can directly consult Zhengzhou Fangkuai Boiler Factory. Boiler technical engineers with professional experience are online Answer your questions for free.

How much steam can a 6-ton steam boiler produce in one hour? In response to this question recently raised by a user of a chemical plant, Zhengzhou Fangkuai Boiler Factory gave an answer.

Under normal circumstances, a 6-ton steam boiler is in a stable operating state one hour after starting, and can at least maintain 6 tons of high-temperature, high-purity steam per hour. If the boiler performs well, it can even produce more than 6 tons. The amount of steam, of course, depends on the overall quality and performance of the boiler.

The 6-ton steam boiler launched by Zhengzhou Fangkuai Boiler Factory adopts condensation recovery technology and advanced FGR combustion technology. The high-temperature flue gas will be injected into the boiler a second time before being discharged, releasing more energy, thus greatly improving the operation of the boiler. The efficiency can reach more than 95%, which is much higher than most steam boilers on the market. At the same time, the exhaust gas temperature of the boiler has also dropped, and the pollutant emission is lower than 30 mg/m3, which has been unanimously affirmed and recognized by users in many industries.

Regarding questions such as "How much steam can a 6-ton steam boiler produce in one hour?" and "How to select a steam boiler?", boiler technical engineers with professional experience in Zhengzhou Fangkuai Boiler Factory will answer you online for free to help you Choose more suitable boiler equipment.

Many users are very interested in the gas consumption of natural gas steam boilers, which is related to the later input cost of the boiler. Zhengzhou Fangkuai Boiler Plant recently cooperated with a fertilizer plant to provide it with a 4-ton natural gas steam boiler for fertilizer processing.

The operating efficiency of this 4-ton natural gas steam boiler is above 95%, and its hourly gas consumption is basically maintained at 280-300 cubic meters. It is one of the best energy-saving and money-saving boiler brands on the market.

Therefore, everyone looks at "Does the 4-ton steam boiler consume a lot of gas per hour?" This kind of question mainly depends on the operating efficiency of the boiler. The higher the efficiency, the lower the gas consumption per hour and the more energy-saving.

Gas-fired boilers are very popular among users among all boiler models on the market, and their market share is also increasing year by year. Gas-fired boilers use natural gas as fuel. Compared with coal-fired boilers, the layout of the boiler room is much simpler. It only needs to be connected to water, electricity, and gas pipelines. But you still need to pay attention to some problems when arranging the gas boiler room, Zhengzhou Fangkuai Boiler Factory will answer for you.

There are many design requirements for gas boiler rooms, many of which can be based on the design steps of general boiler rooms, but the following points need to be paid attention to in the design of gas boiler rooms:
       1. The boiler room should be prepared for water accumulation.
       2. The floor of the boiler room should be flat without steps.
       3. The arrangement of equipment in the boiler room should be easy to operate, unobstructed and inspected.
       4. The boiler room should have adequate lighting, excellent ventilation, and necessary cooling and antifreeze tools.
       5. The load-bearing beams and columns of the boiler room should be separated from the gas boiler or contain other equipment to prevent damage by high temperature.
       6. Adequate lighting should be provided at the operating locations and water level gauges, pressure gauges, thermometers, flow meters, etc. in the boiler room. The boiler room should be equipped with spare lighting equipment.
       7. The door to the outside of the boiler room should be opened outwards, and it is forbidden to lock or bolt during the operation of the gas boiler. The door of the working room or survival room in the boiler room should be opened to the inside of the boiler room. The revenue and expenditure outlets and passages of the boiler room should be unobstructed.

Deoxygenation is an indispensable step in boiler equipment, which is essential for the internal corrosion prevention and normal operation of the boiler. So after we purchase the deaeration equipment, how can we ensure that it will operate normally? Listen to the professional boiler technical engineer of Zhengzhou Fangkuai Boiler Factory to answer you.

(1) 　When the unit is in normal operation, close the two electric shut-off valves on the exhaust pipe on the top of the deaerator, and the exhaust steam is discharged through the throttle orifice.

(2) When the steam turbine load rejection, when the extraction steam pressure of the unit entering the deaerator is less than 0.15MPa”, the extraction valve should be automatically closed, the backup steam source should be opened urgently, and automatic pressure adjustment should be used to maintain the deaerator at a constant pressure under the pressure of 0.15MPa. run. When the feed water pump is out of service, the standby steam source is turned off, the inlet and outlet valves are closed, and the deaeration equipment enters a shutdown state.

(3) If the oxygen content of the effluent water is found to be unqualified under normal operation of the boiler deaeration equipment, the opening degree of the exhaust valve can be opened appropriately.

(4) The water level should be constantly monitored during operation to keep it at the normal water level. When the water level is too high or too low, the automatic water level regulator should act. If a malfunction occurs, it should be dealt with in time.

(5) During normal operation, various valves, water level gauges, pressure gauges, thermometers, etc. should be complete, sensitive and reliable, and should be checked frequently.

(6) Detect and record the operating pressure, temperature, water level, oxygen content of the effluent water and output parameters of the deaeration equipment at regular intervals according to the requirements of the operating regulations.

Energy saving is very important for oil-fired and gas-fired boilers, which is related to the operating cost of the company's investment in the boiler. Zhengzhou Fangkuai Boiler Factory has summarized the following technical measures that can make fuel and gas boilers more energy-saving for your reference and application.

1. The boiler should make full use of variable frequency speed regulation technology. When the boiler water pump and fan are selected, a certain margin is considered in the rated load. Therefore, in fact, when the boiler is running, the flow rate of the fan and the water pump is less than the rated flow rate of the equipment, and they need to be adjusted. In the past, adjustments were all based on throttling, that is, closing the opening of the inlet and outlet throttle valves or baffles to reduce the flow rate, but the motor power did not decrease significantly. Frequency conversion speed regulation is to reduce the speed of the motor through the inverter, and the output power of the motor is reduced. Variable frequency speed regulation is used for fans and water pumps, which can generally save 30% to 40% of electricity. Its investment can be recovered after two heating seasons. At the same time, due to the reduced speed operation, it reduces mechanical wear, extends bearing life, and improves mechanical reliability. sex.

2. Reasonably use the automatic control technology of the boiler. During boiler operation, automatic control can improve boiler efficiency and save energy. In recent years, automatic control and microcomputer monitoring technology have developed rapidly. There are many automatic control devices for the water level of the drum and the water supply. The automatic control and microcomputer control of the combustion process are more commonly used in oil and gas boilers. For layer burning furnaces, some boilers The room is monitored by a microcomputer, and manual adjustment has also received good results. The automatic control of the boiler and the microcomputer monitoring instrument should be based on the principle of simplicity and practicality.

3. Adopt condensing waste heat recovery boiler technology. In traditional boilers, the exhaust gas temperature is generally 160-250°C, and the water vapor in the flue gas is still in a superheated state, and it is impossible to condense into liquid water and release the latent heat of vaporization. As we all know, the boiler thermal efficiency is calculated based on the low calorific value of the fuel, without considering the heat loss of the latent heat of vaporization in the high calorific value of the fuel. Therefore, the thermal efficiency of traditional boilers can only reach 87% to 91%. The condensing waste heat recovery boiler reduces the exhaust gas temperature to 50-70°C, fully recovers the sensible heat in the flue gas and the condensation latent heat of water vapor, improves the thermal efficiency, and the condensed water can also be recycled.

For the majority of users and friends, it is very important to purchase a boiler that can save energy and reduce emissions when purchasing a boiler. This is related to the cost and cost-effectiveness of the subsequent use of the boiler. So when you buy a boiler, how should you see whether the boiler is of an energy-saving type? Zhengzhou Fangkuai Boiler Factory has summarized the following aspects to help you better choose the boiler.

1. When designing the boiler, the reasonable selection of equipment should be carried out first. In order to ensure the safe and energy-saving of industrial boilers to meet user requirements, it is necessary to select the appropriate boiler according to the locality, and design the boiler type according to the scientific and reasonable selection principle.

2. When selecting the boiler type, the fuel of the boiler should also be selected correctly. The type of fuel should be selected reasonably according to the type of boiler, industry, and installation area. Reasonably mix coal so that the moisture, ash, volatile content and particle size of the coal meet the requirements of imported boiler combustion equipment. At the same time, encourage the use of new energy sources such as straw briquettes as alternative fuels or blended fuels.

3. When choosing fans and water pumps, we must choose new high-efficiency and energy-saving products, and we should not choose backward and obsolete products; match water pumps, fans and motors according to the operating conditions of the boiler to avoid the phenomenon of "big horse-drawn carts". The low-efficiency and high-energy consumption auxiliary equipment should be modified or replaced with high-efficiency energy-saving products.

4. Boilers generally have the highest efficiency at 80% to 90% of the rated load. As the load drops, the efficiency also drops. Generally, the capacity of the boiler is 10% larger than the actual steam consumption. If the selected parameters are not right, according to the series standards, the boiler with the higher parameters can be selected. The selection of boiler auxiliary equipment should also refer to the above principles and avoid "big horse-drawn carts".

5. Reasonably determine the number of boilers. In principle, the boiler should be considered for normal maintenance and shutdown, and the number of boilers in the boiler room should not be more than 3 to 4.

When communicating with the technical engineers of Zhengzhou Fangkuai Boiler Factory, some users discovered that the thermal efficiency of the boiler equipment introduced by Zhengzhou Fangkuai Boiler Factory could exceed 100% and reach as high as 107%. What's the reason? Is it because the boiler manufacturer arbitrarily advocates for the sale of boiler equipment? Let's find out.

For oil and gas boilers, there are low calorific value and high calorific value. The low calorific value is the closest to the actual calorific value of an industrial boiler during combustion, and is often used in design calculations. That is to say, the efficiency of the original boiler does not consider the part of the latent heat of gasification that accounts for 11% of the exhaust gas. The thermal efficiency of general oil-fired gas boilers Between 90~92%. When the boiler efficiency is calculated based on the low calorific value, if the condensation technology is used to utilize the latent heat of vaporization and part of the sensible heat in the exhaust gas, the efficiency will be greater than 100%.

Is it necessary for oil and gas boilers to have a condenser? According to the TSG G0002-2010 "Regulations for the Supervision and Management of Boiler Energy Conservation Technology" promulgated by the General Administration of Quality Supervision, Inspection and Quarantine on August 30, 2010, these regulations are based on the "Special Equipment Safety Supervision Regulations" and "Energy Consumption Supervision and Administration Measures for Special Equipment" , Put forward clear requirements for energy-saving work in boiler design, manufacturing, installation, transformation, maintenance and use, which is of great significance to standardizing boiler energy-saving work.

Condensing technology has been widely recognized by the boiler industry in recent years. Take the oil and gas boilers launched by Zhengzhou Fangkuai Boiler Factory. After the addition of condensing technology, the operating efficiency of the boiler has risen sharply, reaching as high as 107%. How does condensing technology work? Come and see it with Zhengzhou Fangkuai Boiler Factory.

For oil-fired gas boilers, the heat emitted by a unit mass of fuel when it is completely burned is called the calorific value of the fuel. Fuel calorific value is divided into high calorific value and low calorific value. The high calorific value refers to the total heat released when 1Kg fuel is completely burned, including the latent heat of vaporization released by the water vapor in the flue gas that has condensed into water. When the latent heat of vaporization of water vapor in the flue gas is deducted from the high calorific value of the fuel, it is called the low calorific value of the fuel.

Obviously, the high calorific value is larger than the low calorific value in value, and the difference is the latent heat of vaporization of water vapor. Taking natural gas as an example, its high calorific value is about 9500 kcal/m3, and its low calorific value is about 8600 kcal/m3. The difference is about 900 kcal/m3, accounting for about 11% of the low calorific value.

Boiler equipment using condensing technology can re-use the high-temperature flue gas discharged from the boiler and recycle it into the operation of the boiler, thereby achieving the purpose of energy saving and emission reduction.

The history of hot water boilers can be traced back to a long, long time ago, and steam boilers have been popularized in the past 200 years, which has a certain impact on traditional hot water boilers. If the space available for the former is small, or subject to greater restrictions, people will quickly choose the latter soon. The area required by the steam boiler is also relatively small, only 60% of that of the hot water boiler, and it does not require special renovation plans and indoor layout adjustments. The steam boiler not only has the advantage of occupying a small space, but also consumes less water in the furnace. The boiler can produce steam within 5 to 7 minutes after starting in the cold state, while the hot water boiler is about 60 minutes after starting in the cold state. Steam can only be started after ~90min.

When the boiler is out of service for a long time, shutting down must also be considered. The steam boiler embodies energy-saving advantages when it is started, and can save 5% to 11% of energy on average; while the former still has energy loss under normal and continuous operation: heat radiation and source loss through the chimney. Moreover, after the hot water boiler is out of service for a long period of time, it will take a long time to return to normal working condition.

The hot water boiler can provide a large amount of high-pressure hot water, wet steam and superheated steam, but the pressure it can achieve is only 32 bar. Under today's technical conditions, the achievable hot water temperature can reach 240°C and the steam flow rate can reach 45t/h. From the current popular point of view, the use of a fast steam boiler to provide wet steam is the most ideal solution: compared with the wet steam provided by the former (relative humidity 2% to 3%), the relative humidity of the wet steam provided by the fast steam boiler is only 0.5%, which can reduce the hazards caused by steam condensation in the steam pipeline, and has very good heat transfer performance during use.

Enough steam due to the small amount of internal water and the thinner wall thickness of the furnace body can reach the predetermined steam pressure in a short time, and the pressure value can be kept stable when the load changes. It does not need to be monitored under certain working conditions. Because the steam boiler consumes less water during operation, it is classified as Class III or Class IV in the equipment operation safety level regulations. When using a hot water boiler, when the pressure and capacity of the boiler exceed certain specifications, you must apply for a license before putting it into production.

In boiler equipment, the formation of scale is the precipitation of solid substances from the supersaturated boiler water. A certain salt dissolved in the boiler water has a certain solubility. If the solubility limit is exceeded, the boiler water becomes a supersaturated solution of a certain salt. At this time, the excess part is dissolved out of the furnace water. So what are the effects of scale on the boiler? Are these effects positive or negative? The technical engineer of Zhengzhou Fangkuai Boiler Factory has something to say.

First of all, we must first understand what are the components of the scale in the boiler: 1. The fouling substances are mainly derived from the impurities contained in the feed water; 2. The impurities include the dissolved, colloidal or suspended matter in the feed water; 3. Common There are calcium carbonate, calcium sulfate, calcium silicate, magnesium hydroxide, etc.; 4. Under special circumstances, iron scale, oil scale or other organic scales may also be generated.

Secondly, it is necessary to have a certain understanding of the distribution law of scale in the boiler: 1. Generally there is secondary scale in the header; 2. The scale accumulated at the bottom of the drum is generally the scale that falls off the smoke pipe; 3. The formation near the water supply pipe The scale is generally dominated by carbonate salt; 4. The mixed scale of silicate or sulfate is usually generated in the water wall pipe; 5. When the water source is changed or the water treatment method is changed, a large amount of scale may fall off; 6. Boiler The scale is generally distributed on each heated surface; the scale formed on the non-heated surface is generally secondary scale.

For boiler equipment, the harm caused by scale is huge. Excessive scale will destroy the normal water circulation of the boiler, causing defects such as overheating, deformation, material deterioration, and cracks on the heating surface of the boiler. In severe cases, it will also reduce the thermal efficiency of the boiler, increase the production and equipment maintenance costs of the enterprise, and cause safety problems, causing personal injury and death.