1 ton nature gas fired boiler in chemical plant
Primary air tube blockage is what causes? How to prevent? Reason: 1) blocked or coked-burner fire nozzle inlet is blocked portion of small oil gun and other debris. 2) too many impurities coal, powder machine speed is too high, the pulverized coal and primary air speed too low. 3) powder machine speed is too high, too much under the powder without timely blown away. 4) a low pressure (throttle open or not to open too small), can not take away meal. Precautions: 1) to the powder and the rotational speed of the unit load and adjust relevant primary pressure according to the powder not more than 700 rpm rotation speed, a wind speed of each holding 25 ~ 30m / s, the mixed primary air temperature was controlled at 180 to 250 ℃, a pressure depending on the load, depending on coal, in the range 2.5 ~ 3.8kPa. 2) find a wind speed is too low, the primary air temperature is lower than the normal value should be to lower the rotation speed corresponding to the normal to the powder of a primary air temperature and wind speed. 3) open, gas steam 1 ton nature fired boiler in chemical plant tank should be fully cut-off torch powder, the powder in the tube is blown accumulated powder. 4) Fire mouth clogged or coked should try to remove. What causes large vibrations induced draft fan? 1) motor bearings in oil, resulting in large vibration and bearing wear; 2) even when the shaft is mounted on the center not good; 3) induced draft fan stall surge; 4) anchor bolt loosening induced draft fan; 5) blade fouling or wear ,lost balance.
National Energy Board was held on October 30 press conference, announced the first three quarters of this year, mainly energy situation, renewable energy grid operation, the third quarter 12,398 Energy Regulatory hotline complaint inadmissible situation, but also on "on the strengthening of the power industry cybersecurity guidance of "interpretation.
The first three quarters of energy consumption will continue to pick up, and constantly improve the quality of supply, and further optimize the energy structure, promote energy transformation continued, the main indicators better than expected, reflected in six aspects.
First, the rapid growth of energy consumption.
1, coal consumption continued to pick up. The first three quarters, driven by growth in coal consumption, coal consumption growth picked up. According to preliminary industry statistics, the proportion of total coal consumption of coal accounts for about 53.9%, an increase of about 2.3 percentage points over the same period last year.
2, oil consumption is relatively stable. The first three quarters, apparent consumption of oil increased by about 3.4%, growth was flat with last year.
3, rapid growth in natural gas consumption. The first three quarters, the apparent consumption of natural gas increased by about 16.7 percent, the growth rate down 0.8 percentage points over the same period last year.
4, the rapid growth of electricity consumption. The first three quarters, total electricity consumption grew by 8.9% year on year, the growth rate increased by 2 percentage points over the same period last year, the highest six-year high.
Second, continue to promote energy transformation.
1, continue to optimize the structure of power installed. Clean energy power generation capacity in the first three quarters, hydropower, nuclear power, wind power, and solar power together, the total installed capacity of 36.4%, 1.4 percentage points over last year; clean energy generating capacity grew 8.9%, higher than the growth rate of the thermal power by 2.0 percentage points .
2, electricity consumption structure was further optimized. The first three quarters, the four energy-intensive industries the proportion of electricity which fell 0.5 percentage points, tertiary and residential proportion of total electricity consumption increased by 1 percentage point.
Third, the quality of energy supply and gradually increase.
1, to coal production, ensure supply, stable prices marked success. The first eight months, the cumulative excess resolve the coal production capacity of about 100 million tons, completed 67% of the annual task.
2, resolve to further promote coal overcapacity. Relevant local and enterprise-wide combing less than 300,000 kW coal units, investigation of energy efficiency and environmental non-compliance unit to implement the 2018 coal industry, eliminate backward production capacity goal.
Fourth, make up the short board energy projects to accelerate.
1, natural gas security of supply capacity significantly enhanced. Natural gas pipeline network interconnection, gas storage facilities, gas prices and other work to accelerate the merger.
2, energy Huimin construction speed. Clean warm northern steadily. In two batches to arrange 12 billion yuan central budget for investment, focusing on upgrading rural power grids "Three Tri-State area," the depth of poverty-stricken areas.
3, project reserves of energy make up the short board to speed up the implementation of the work.
Five pilot power system reform in full swing.
The provincial power grid transmission and distribution tariff reform to achieve full coverage. Cross inter-provincial renewable electricity spot trading further promote the pilot.
Sixth, the energy efficiency of the sector, improving overall efficiency.
The first eight months, gross profit increased by 25.1%, accounting for 17.8% of industrial enterprises increased by 5 percentage points over the same period last year.
3. Adopt flue gas return body coil design, this DC-type structure, show the traditional 1 ton nature fired boiler in chemical plant does not have security.
4. As a result of coil-type structure and therefore, sufficient heating surface so that it will have a higher thermal efficiency.
5. Heat-conductive of boiler, characterized by significant counter-current heat exchanger, combustion exhaust gas temperature and thermal conductivity of the oil exports of the following temperature at 30C.
A number of national influence energy consumption steam 1 ton nature fired boiler in chemical plant coal to natural gas has been vigorous work, it should be transported steam boiler, very big eliminate the dust pollution, discharge of toxic gases and secondly nitric oxide, also got curb. Energy consumption is crucial mark measuring steam boiler, a good start and that is that work together to explore under the influence of a number of cases the energy consumption of steam boilers. Through the investigation of the persons concerned, the loss of heat from steam boilers bear the main two areas: combustion air-fuel ratio does not smoke emissions standards-related heat loss. Reduction of heat loss will install smoke emission in the flue gas heat recovery steam boiler terminal fitting, or should be transported more leading type condensation recovery boiler. Combustion air-fuel ratio standard fault summary: a conventional steam boiler burner ejector type, formed air-fuel ratio can not occur motorized adjustment. Some of the steam boiler with a mechanical blower burner, causing air-fuel ratio standard there are several aspects later: the main air-fuel ratio standard case encompass fall into two categories: air flow when exceeded, there will be an endless excess cold heat transfer, resulting in high energy cost of steam boilers, steam boilers reduced energy consumption; when the airflow is not enough, will have not exactly lit, the energy consumption caused by steam boiler weakened.