Is there any other form of technical means for boiler energy saving renovation in addition to heat s

1.Power coal blending, reasonable coal blending, stratification, and coal additives.

2.Renovation of the furnace arch.

3.Combustion system modifications.

4.The laminar combustion boiler is changed to a circulating fluidized bed.

5. Reasonable frequency conversion water supply and air distribution, reasonable combustion, reduce excess air coefficient, and reduce smoke exhaust.

6. Reduce exhaust gas heat loss and heat exchanger.

7 suitable boilers, oxygen-fueled combustion can be considered.

8。Reduce the heat dissipation loss of the boiler and use low-density high-insulation materials.

9。Reduce coal dropping and incomplete combustion.

10.Strengthen water quality management, reduce scaling in pots, water pipes, exchangers, etc., and maintain heat transfer efficiency.

11.The automatic control system carries out automatic and semi-automatic centralized control of air distribution, grate and power coal blending to optimize the overall efficiency.

12.Flue gas waste heat**, which can be used to preheat boiler air intake, water inlet or other workshop heating processes, domestic hot water, air conditioning heating, etc.

13.Condensate**.

14. Steam accumulators are used.

15. Vacuum deoxygenation technology.

16. The inner wall of the furnace, the parapet wall and the rear arch are coated with high-efficiency reflective coating.

17. The water-cooled wall pipe is coated with high-efficiency heat-absorbing coating.

18。Each drive motor uses a high-efficiency motor.

19.Pump fans use high-efficiency products.

Some are general, and there are a lot of them that haven't been mentioned, and they can't be detailed due to the length of the article, but you can search for them from the things I provided, and then go to Douding.com, Daoke88, and their libraries, and you can find a lot of detailed content.

If you have a boiler that burns diesel or natural gas, you can also convert it to burn biomass fuel, which can save about 15-25% of the fuel cost.

The implementation of energy-saving transformation of gas boilers mainly starts from the following aspects: aDue to the excessive heating flow of the boiler circulating water, the fire burns violently, the gas consumption is increased, and the boiler efficiency is reduced.

b.Installation of a climate-compensated automatic control system to exploit potential energy savings. c.

According to the different needs of schools and public institutions, time-sharing district heating is realized to reduce unnecessary energy consumption. d.Solve the problem of uneven heating and heat supply in the heating pipe network.

e.Solve the problem of excessive matching margin of circulating water pump and power loss. Xie Zhehui gas boiler energy-saving transformation advantages:

1) The environmental climate compensation technology is adopted, and the heating parameters set in the machine can be automatically controlled at any time according to the heating parameters set in the machine through the collected outdoor temperature. It has changed the passive situation of relying on manual operation and empirical judgment in the past. 2) According to the nature of the use of each building in the heating area, the control device is installed at the entrance of each building, so as to realize the time-sharing district heating, and automatically regulate the air supply flow in the case of no one working in the building or during the abnormal use period, appropriately reduce the indoor temperature, and reduce unnecessary energy consumption.

3) To improve the thermal efficiency of the boiler, a bypass pipe and an electric adjusting device are installed on the main pipe of the total inlet and total outlet of the boiler to adjust the flow of boiler water. After the transformation, it ensures that the boiler always runs under high temperature water and high efficiency, saves fuel, reduces the corrosion of boiler condensate to the boiler, and prolongs the service life of the boiler. 4) Strengthen combustion, optimize heat preservation measures, adjust the resistance coefficient and the ratio of wind and coal, and realize the rapid and full combustion of coal in the furnace.

By inverting the herringbone back arch to form a throat, the oxygen content of the upper part of the furnace can be increased, the full combustion of pulverized coal and carbon oxides blown up can be promoted, and the high-temperature flue gas is disturbed and rotated in the furnace, so that a part of the coal ash is regurgitated in the furnace, reducing the ash accumulation on the convection surface, reducing the amount of soot emissions, saving coal and reducing environmental pollution, and the economic and social benefits are significant.

Hello, I am Siemens doing energy-saving renovation business, I don't know if you are also a service company doing energy-saving renovation or a user.

Regarding the energy-saving transformation of the boiler, because the factor of intellectual property rights is inconvenient to give you the energy-saving transformation plan, I do not know the specific situation of the boiler, so I will provide you with ideas.

Burner transformation: If it is an oil-fired boiler, you can consider transforming it into a gas-fired boiler, or an oil-gas dual-fuel, which can save energy consumption and improve energy efficiency by 3-5%.

The burner has the function of oxygen adjustment, which can improve the thermal efficiency of the boiler by more than 1%.

The use of mature combustion management system and combustion control device, changing the mechanical proportional gas ratio control to electronic gas ratio control, can improve energy efficiency by 2-3%.

The actuator is controlled by a high-efficiency inverter, which saves about 30% of electricity and further improves the energy efficiency level.

Install flue gas ** device, use boiler exhaust gas preheating, reduce exhaust gas temperature, and the energy saving rate can reach 4-5%.

Based on the above energy-saving renovation measures, it can be seen that after the transformation, the energy-saving rate will be increased considerably. If you have a specific project, we can follow up with you.

Boiler energy saving may start from combustion, descaling, and energy-saving transformation of induced draft fan. Specifically, you have to have what kind of boiler you are, how many tons, and get these data out to make a plan.

There are many ways to transform boiler energy-saving, and now there are more "coal to gas" and "coal to biomass".

Coal-to-biomass scheme:

The original coal hopper for fuel feeding is changed into a closed hopper, a biomass pellet fuel conveying and storage hopper is installed, a set of spiral biomass pellet fuel feeder is installed, and a check hole is opened at the top of the conveying pipe connected with the closed hopper at the top of the spiral feeder, and a travel switch is installed to automatically control the start and stop of the screw feeder motor.

Boiler energy saving is a big topic, what kind of boiler are you, coal, gas, oil these three boilers are divided into many types, can not be generalized, you ask a clear point, otherwise it is not easy to answer, the brief answer to this question is estimated to be tens of thousands of words...

Big topic. We can learn from the principle of the barrel, first check the boiler system, to see which link belongs to the short board of the barrel, belongs to the short board priority for transformation, generally speaking, the combustion is not sufficient, consider the transformation of the combustion system; If the exhaust temperature is too high, consider transforming the heat exchange surface. Specific problems are analyzed on a case-by-case basis.

The purpose of energy-saving transformation of industrial boilers must be clear, and its purpose is nothing more than to improve the overall operating efficiency of the boiler, usually paying attention to the following factors: 1. Improving heat exchange efficiency is to improve the heat exchange efficiency of boiler tubes; 2. Reduce unnecessary losses, such as smoke exhaust loss, boiler body heat loss, 3. Improve the physical heat of fuel or water, 4. Try as much heat as possible in smoke exhaust.

The high-temperature flue gas or material flows into the high-temperature ceramic heat exchanger, and the high-temperature hot air is replaced as the combustion air, which is much more energy-saving than using room temperature air as the combustion air.

The energy-saving transformation of boilers or kilns is generally mainly due to the following aspects:

1. Improve the thermal insulation effect of the furnace (body) through the thermal insulation treatment technology;

2. Utilization of waste heat;

3. Use new fuels--- such as natural gas, etc.;

4. Transformation of frequency conversion control technology of fan;

5. Reasonable allocation of gas mixing ratio such as gas (such as use);

6. For the kiln, formulate a reasonable product loading process, firing cycle and firing temperature.

Efficient use of steam according to planFor boiler houses with multiple boilers, the distribution of steam supply to each boiler should be carried out according to the principle of the highest total efficiency of the unit. The high-efficiency boiler gives priority to the load, and after it is fully loaded, the low-efficiency boiler bears the load. In order to improve the effective utilization rate of steam, under no circumstances should high-pressure steam be expanded into low-pressure steam without receiving work.

When the boiler is just started, the exhaust steam should be eliminated or reduced as much as possible, and this part of the steam should be used as much as possible. At the same time, keep the trap able to work normally, so that its heat can be expanded smoothly, the distilled water in the trap is of excellent quality, and can be used for boiler feedwater, saving water treatment costs.

Note that the insulation steam pipes and various heating equipment in the pipe network will lose heat through the surrounding air, whether it is for the purpose of energy saving or safety, it is necessary to do the work of insulation. When choosing insulation materials, the first is to ensure that they have good thermal insulation performance and low thermal conductivity. The second is to ensure that when it works in a high-temperature environment, it can maintain stable mechanical properties.

Third, the hygroscopicity of the material should be low, and the pipeline should not cause corrosion. In order to reduce the heat dissipation rate of the steam pipeline and reduce the heat loss, the smallest pipe diameter should be used when selecting the pipeline, and the conveying distance should be shortened to ensure that it maintains a small pressure drop. If the pressure drop is large and not easy to reduce, it should be reduced by using its work.

For power units, high-temperature and high-pressure steam should be used; For process steam, low pressure and low superheat should be used.

Boiler exhaust exhaust heat**.

The design thermal efficiency of oil-fired boilers is generally 88 92. This is because the fuel contains H2S, and in order to prevent low-temperature corrosion at the boiler tail, the exhaust gas temperature is required to be no less than 120 degrees Celsius. In the actual boiler design, the exhaust gas temperature generally reaches about 180 degrees Celsius.

This leads to the exhaust gas heat loss of the boiler, plus the heat loss caused by incomplete combustion of fuel and heat dissipation, the thermal efficiency of the boiler can only reach 65 85.

When the H2S content of natural gas is very low, there is no need to consider the problem of low-temperature corrosion at the boiler tail, and the thermal efficiency of the boiler can be improved by reducing the exhaust gas temperature.

The installation of exhaust gas waste heat ** device at the tail of the boiler can save gas 4 6. In addition, due to the high sulfur content in the fuel, it is not advisable to reduce the exhaust gas temperature. If you want to exhaust the heat energy of the smoke, you need to take corresponding anti-corrosion measures.

Energy-saving transformation of boiler auxiliary equipment: the main auxiliary equipment of coal-fired boiler - blower and induced draft fan operating parameters are directly related to the thermal efficiency and energy consumption of the boiler, with appropriate speed regulation technology, according to the load needs of the boiler to adjust the air volume, induced air volume, to maintain the boiler operation in the best condition, on the one hand, can save boiler coal, on the other hand, can save the power consumption of the fan, and the energy-saving effect is outstanding.

Laminar combustion boiler converted into circulating fluidized bed boiler:

The circulating fluidized bed boiler is circulating fluidized combustion of pulverized coal in the furnace, so its thermal efficiency is 15-20 percentage points higher than that of the laminar combustion boiler, and it can burn inferior coal; Since limestone powder can be used for desulfurization in the furnace, not only can the acid rain gas SO2 emissions from coal-fired boilers be greatly reduced, but the ash can be directly produced into building materials. There have been many successful cases of this kind of retrofit, but the investment in the retrofit is relatively high, about 70% of the cost of purchasing a new furnace.

The only way to improve the combustion efficiency of the boiler is to reduce the heat loss of the boiler, improve the available effective heat of the boiler, and transform the boiler technology. Reduce the loss caused by exhaust gas heat, control the slag and ash accumulation on the heating surface reasonably, run the pulverized coal burner with a powder nozzle along the furnace, the height is arranged with several layers, control the air temperature at the inlet of the blower, pay attention to the feed water temperature, avoid excessive air volume of the boiler, and pay attention to the impact of the operation of the pulverizing system. Reduce the heat loss of solid incomplete combustion, reasonably adjust the fineness of pulverized coal, and control the appropriate amount of excess air coefficient

Pay attention to combustion adjustment to ensure the quality of boiler coal. Reduce the loss of steam, ensure the quality of boiler feedwater, improve the installation and maintenance quality of steam-water separation device, and keep the boiler load, water level, steam pressure and other parameters stable during operation.

Adhering to the supervision and management of small boiler indicators, the improvement of boiler thermal efficiency not only saves national resources, but also saves the cost of production and operation of enterprises and enterprises, and reduces the emission of chaos or pollution from some angles.

Reducing costs and improving benefits has become the consensus of every enterprise today. For sugar mills, improving boiler thermal efficiency, saving fuel, and reducing firewood and coal consumption is an important way to reduce production costs. When our factory was expanded in 1992, the designed production scale was 1500t of sugarcane per day, and the production capacity has been increased year by year through local technological transformation in the past few years.

Especially in the 1998 99 crushing season, the annual crushing volume of our factory reached 2260,000 tons, the highest daily crushing capacity of 2000 tonsThere are problems such as heavy boiler load, poor combustion effect, severe coking and low reheating efficiency.

In 1999, the company suffered serious losses and was unable to carry out large-scale investment in boiler capacity enhancement and transformation. Through the transformation of analytical technology and the introduction of two sootblowers for starvation, the efficiency of the boiler has been significantly improved. The crushing capacity increased from 1840t d in the 1997-98 crushing season to 2050t d in the 1999-2000 crushing season, achieving a good industry level of 2000t sugarcane processed by 40t boiler per day.

The ratio of standard coal consumption to cane decreased from last year to this year, the coal consumption per 10,000 tons of cane decreased from 112t last year, and the consumption of firewood per 10,000 tons of cane decreased from last year to 14,145 kWh of foreign power per 10,000 tons of cane, and the average hourly steam production increased by 6Create direct economic benefits of 10,000 yuan, save 960,000 yuan of boiler capacity increase and transformation investment, minus 10,000 yuan of transformation investment, and produce economic benefits of 10,000 yuan in 2000.