5 Occupational Health Survey _2540 power plant -

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5 thermal power plant Occupational Health Survey

12402O2581OO1OO1OO1OO1OO12111112966.763, 654.558.355.6716171O71OO1OO76.58O. O71.42.2.1 qualified dust dust measurement was 85.5 points. 5 major dust plant workplaces (12 Dust posts) operating point of 188 dust in the air dust concentration determination result, traffic driver Coal Field room, boiler, boiler to coal, coal mill, various types of equipment, control room and shaker 100.0,6 pass rate of 6 jobs jobs exceeding different levels of dust concentration (Table 2), with a pass rate of the coal loader site cab lowest, followed by coal field, the belt feeder. Determination of dispersion of dust samples, the results of dust particles smaller than 5m average of 71.5. Table 2, the dust concentration in the main Dust posts Note: * operating positions with the determination of dust as all the dust, the other for respirable dust. 2.2.2 Determination of Noise Noise pass rate of 85.5 points. 11 noise-exposed positions in the turbine, Fan,[link widoczny dla zalogowanych], to coal and instrument air compressor passing rate of 100,[link widoczny dla zalogowanych],7 jobs varying degrees of excessive noise intensity ( Table 3), the lowest passing rate of the blower, followed by the mill, feed water pump. In addition to the noise source spectrum for the broadband characteristics of mill and other noise sources are low frequency or frequency-based. 3 main noise bad noise workplaces 2.2.3 High temperature strength of the main plant, boiler and other operating positions with the heat source and the corresponding control room a total of 55 operating points measured microclimate, temperature of 26.8 ~ C ~ 39. 0 ��, with 22 points as the high-temperature l, determined pass rate of 60.0 points. Steam turbine generator main plant for high temperature plant (Table 4). 2.2.4 Production of toxic substances in workplace air five power plants in the HCL, NaOH, CO, SO, NH. , Cl, and a variety of toxic concentrations of NO determination results are in line with national health standards. 2.2.5 EHV-frequency high-voltage transmission line will change the area around the power frequency electric field to some extent, in the five existing power plant substation delivery system frequency electric field of the switch boxes, power lines operating points measured under 55, workplaces where there are three plants of varying intensity ultrahigh frequency electric field levels exceed national health standards. Electric field is 0.02 ~ 19.1OkV / m, measured pass rate of 86.0 points. 4 major workplaces bad weather conditions heat phase degrees Note. Temperature measurement point by point as high-temperature failure point statistics. 3 exceeded the point of the discussion focused on thermal power plant dust loaded cab, coal yard to the coal belt, belt conveyor, ash handling system of the gray and the mouth of the 6 residue workplaces. 5 plants are confined to, water and ventilation and other comprehensive dust control measures, but some moisture is not enough coal plants, or ventilation hood did not point directly at the dust, some dust or damage or no protective measures put into use and so on, so that some work sites exceeded the concentration of dust in the air. In particular, dispersion of dust particles smaller than an average of 71.5 5m dust, small particles, the more time spent in the air longer,[link widoczny dla zalogowanych], sucked more chance. Reported in our province, the new power system every year who found pneumoconiosis, to the end of 2003, prevalence has reached 396 cases of pneumoconiosis cases, should pay close attention. Power Plant workers and departments,[link widoczny dla zalogowanych], mainly in the main control room control room operations, but regular inspection of all production workers in jobs at the cumulative noise exposure time is about the actual 2h, a large number of distributed power plant operating equipment, noise, noise hazards can not be ignored. Power turbine, the generator main plant is hot shop, in summer by the greater intensity of heat radiation, the factory workers should arrange continuous operation time oral exposure to heat], good measures of local cooling or a combination of sunstroke. The supply of workers for high-temperature salt soft drinks, and to develop contingency plans for acute stroke. In addition, production of toxins and high pressure frequency protection can not be ignored. Ventilation and drainage facilities to do the regular maintenance and management to ensure effective ventilation and drainage. Frequency for the high pressure well in accordance with relevant provisions of shielding, grounding and other protective measures to ensure workplace-frequency electric field strength of EHV line with national health standards j.

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