Measurement and analysis of high-temperature and high-humidity environment of paper-making plants

This paper is aimed at introducing the findings from our measurement and investigation on the high temperature and humidity environment for paper-making plants.In hoping to find out the distribution regularity between the temperature and humidity in the papermaking workshops with hot and humid environment,we have carried out field measurements and investigations of five paper-making plants in different regions all over the country in different seasons.The results of our measurements and analysis reveal some regular results between the temperature and the height of the workshop buildings of such paper-making plants.To be exact,conclusions have been made that the temperature in such buildings increases with the height vertically no matter whether in summer or in winter,but the temperature in summer rises much more remarkable in comparison with that in winter.Moreover,a comparative formula has been derived with the increase of the height as compared with that of the temperature.However, the formula is just applicable for a building height below six meters.In addition,we have also worked out the relative humidity and the humidity ratio to the comparative temperature.Actually,the relative humidity and humidity ratio can be taken as the hierarchical distribution features,though they are not entirely in proper ratio to each other,for the temperature is not only related to the humidity but also to the temperature change.In some ways,it can be said that the higher the temperature,the lower the relative humidity with the humidity ratio being constant.Furthermore,both the relative humidity and humidity ratio distribution characteristics are closely related to the moisture diffusion degree and the mode of paper machines in the workshops.And,finally,we have also made believe that such a kind of hot and humid environment is harmful for the workers to stay long. In one word,the above investigation and analysis have done on temperature and humidity distribution characteristics are expected to provide an important reference for designing better ventilation conditions in such plants so as to improve better working environment both for the workers and for working machines.