1 Abstract This paper takes the measured data as an example to analyze the operation of industrial boilers and motors in Baotou area, expounds the impact on the environment under this condition, and proposes measures to strengthen energy monitoring and energy management, keyword energy; testing; Benefit Baotou City is a heavy industrial city with annual energy consumption. Industrial boilers and phase asynchronous motors are the main energy-consuming equipment of enterprises. At present, there are about 3,000 boilers in use, and the annual coal consumption is about 3 million tons. Due to the management and design of obsolete and other reasons, energy waste is more serious.
Taking the monitoring data for the first half of 1999 as an example, the operation status of industrial boilers and motors in Baotou area is analyzed.
Boiler and motor energy test analysis In the first half of 1999, there were 42 energy station monitoring enterprises and 49 test boilers. Phase 14 asynchronous motor 14 industry boiler test was based on Inner Mongolia Autonomous Region local standard 08153 91 energy utilization monitoring standard.
The motor test is based on the national standard 0,249795 phase asynchronous motor economic operation.
Tests on 49 boilers in 42 companies found that boilers generally have low heat efficiency and low energy waste. The reason is that some enterprises have longer boiler life and lower level of operation of the furnace workers. The surface only analyzes the energy consumption of the enterprise with regard to the carbon content of the slag. This indicator reflects the energy consumption of the enterprise more intuitively.
According to the test results, the boiler with the carbon content of the slag pot is 25.02. The total number of boilers with slag carbon content exceeds 24, accounting for 48.98 of the total. There are 15 boilers with carbon content exceeding 30, accounting for 62.50 of the total unqualified. And these companies basically consume more than 1,000 tons of coal per year. For example, in the calculation of half a year, the 15 boilers are equivalent to a boiler. The coal consumption in the first half of the year is about 8,000 tons, and the carbon content of the slag is 62.50. The author is Wang Weimin, 5. Male. Mongolian branch, Chifeng people in Inner Mongolia. If the engineer calculates the carbon content of the slag 2, the fuel consumption for the half year is 300 tons.
Tests on 141 motors found that the fan type has a large non-economic operation limit, and it is difficult to manually adjust the fan load, which causes the phenomenon of large horse-drawn cars in the motor running process. According to the test data, the non-economical monitoring of industrial boilers and motors has revealed that enterprises still have great energy-saving potential, which requires enterprises to increase investment in energy-saving technological transformation and reduce energy consumption. Energy-saving and economics; Qi benefits and environmental benefits based on the Shandong Province energy use monitoring training materials, each furnace excess air coefficient per waste of waste fuel 84 smoke, å—– milk sentence over 15 waste fuel. 4 slag carbon content super handle is technically efficient + every time waste fuel is reduced. 4 The 49 boilers tested were equivalent to a furnace, and the coal consumption was 20,000 tons in half a year. According to the test results, the boiler was estimated to have an excess air coefficient at the exhaust, and 63.26 of the time exceeded the standard. 1. The waste fuel was released. Smoke temperature 1 has a time of 20.41 over the standard 15, Huang Hao, fuel for the slag carbon content 2 has 48.98 time super standard launch waste fuel for efficiency ask temporarily not to consider most of the boiler efficiency does not meet the standard to 24 Inner Mongolia quality Technical supervisors pleaded, and other data were selected to the lowest value.
In this way, the amount of fuel wasted for half a year was 8.09 of the total coal consumption of 20,000 tons of raw coal. If the market price of raw coal was 80 yuan per ton, 1618.7 tons of coal would have to pay 129,496 yuan.
According to the environmental statistics manual, the volume of smoke generated per kilogram of coal burned during boiler operation can be calculated.
Set the volume of flue gas generated during coal combustion, the air coefficient at the theoretical exhaust of coal is measured at a low level because the ash content of coal is = 20.80, which is 208 tons of ash per ton of coal. 15 25 became fly ash, and these ash 520 became soot.
If all 49 boilers are up to standard, it can reduce the emission of 35,368,595 standard meters of flue gas into the atmosphere, discharge 2.5216.83 tons of fly ash into the air, and discharge 250,330 tons of ash to the ground.
The excess air ratio is essentially a value reflecting the fuel-air ratio. It directly reflects the economics of the boiler combustion and the technical level of operation and operation. ±, the wear of the fan is increased, and the mechanical life is reduced.
The carbon content of the slag 2 indicates the completeness of coal combustion in the furnace, reflecting the furnace effect, the quality of the coal, the operating speed of the grate and the amount of air supply, that is, the combined effect.
Therefore, in the process of boiler use, the company reasonably adjusts the drum induced wind and coal seam thickness according to different conditions, so that the output of the boiler reaches the optimal state, reducing man-made waste and environmental pollution. The non-economic operation motor power tested in the first half of 1999 is less than 18.51 for 1 hour, a few shots, 1 post, and change to Meiyi is not obvious to more than 3, Shaoguan information friends. The 371's downtime mining frequency conversion debugging device can recover the investment in 23 years. However, at present, the production of enterprises is sluggish, and it is impossible to invest tens of thousands or even hundreds of thousands of yuan to carry out energy-saving technological transformation of the motor. The power plant in our district is basically for thermal power generation and the motor is the main power-consuming equipment. Therefore, the energy-saving technical reform of the motor in use of the enterprise can be increased, which can reduce the environmental pollution caused by the construction of the power plant, and can save energy and improve The purpose of economic efficiency.
Some suggestions for strengthening supervision and testing and strengthening management Through field tests, it can be seen that the problem of exceeding the standard of boiler and motor operation technical indicators is mainly that the operation level of the furnace workers is not high, resulting in artificial waste.
The boiler selection is unreasonable, and there are many old furnace types.
When the boiler is shut down, the operating conditions cannot be adjusted in time.
The motor has no no-load power saving device.
The implementation of the management system is not effective.
In the current situation where enterprises and institutions have limited financial resources to update boilers, the effective means to solve this problem is to strengthen management. Therefore, it is recommended that the government's energy authorities should strengthen macroeconomic regulation and control and increase law enforcement. The energy conservation monitoring center station should actively cooperate with the competent energy department to strengthen energy monitoring and supervision energy management, and urge the departments that use boilers and motors to strengthen the operation and energy management of the boilers and motors under the existing equipment operating conditions.
Supervise and inspect the energy use of enterprises and institutions to implement energy conservation, compare the monitoring results, and manage according to law, and give notices and fines for serious waste of energy and refusal.
Strengthen technical training for boiler operators.
Supervise the competent departments of all units to make reasonable scientific and strengthen supervision and management of boiler renewal and overhaul after boiler operation, and reduce waste caused by unreasonable selection and overhaul.
According to the choice of furnace type, coal type, and comprehensive economic benefits, 1 and 1 estimates.
Supervise and urge enterprises to renovate the national elimination motor, and carry out energy-saving technical reforms for non-economically operating motors according to specific conditions.
Second. The use of advanced new technology to strengthen the boiler combustion system is mainly the transformation of the furnace arch; the use of stratified combustion technology to improve the thermal efficiency of the boiler, saving coal to reduce emissions of smoke. The frequency conversion technology and the no-load power-saving device are adopted on the motor to improve the overall efficiency of the motor. Among them, the stratified combustion technology and the frequency conversion technology require a large investment, and other methods are methods of not investing or investing less quickly. The measures taken by the removal of rice are based on the awareness of energy conservation among the people. However, the current efforts are mainly based on the implementation of energy conservation policies and regulations. In the reference æ ¾ Shao ç‘. Shandong Right Energy Utilization Monitoring Training Materials Shandong Province Energy Saving Technology Service + Center. 99 years.
2 Fang Pinxian, Jiang Xin, Yan Yuanfu. Environmental statistics manual.
Science and Technology Press, 1985.
Inner Mongolian Technical Supervision
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