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Energy saving of paint drying equipment


To measure l, room temperature should be uniform; strive to shorten the heating time; should minimize heat loss drying room; should be based on the specific circumstances of the use of inexpensive heat source, efficient thermal insulation materials and heating element; indoor circulating air should be clean,[link widoczny dla zalogowanych], and consider the anti-riot and waste gas treatment; room under the body was drying the workpiece to determine the minimum space, and the radiator surface and the optimal spacing, speed of air and added the amount of cold air. 2,[link widoczny dla zalogowanych], in the paint, it can be used short-term low-temperature drying paint. In the drying room design should consider: the exhaust chamber body heat loss and heat loss in a population control; hot air circulation heat pipes and the use of waste gas treatment; chamber body wall insulation and wall heat loss control of the station within a reasonable skeleton structure design; lightweight and conveyor trolley Taiwanese management design; heating radiator type and the selection and configuration. (2) the choice of thermal insulation materials and insulation thickness between the inside and outside the wall filled with insulation material to make room body sealing and insulation. Walls to reduce heat loss. Improve thermal efficiency. Rational selection and installation of thermal insulation materials, is also an important way to save energy. Insulation materials commonly used are silica,[link widoczny dla zalogowanych], expanded perlite, asbestos powder,[link widoczny dla zalogowanych], glass fibers such as cotton, and a new type of thermal insulation materials - rock wool board. Rock wool board thermal conductivity <0.041, non-flammable meet GB5464-85 standards. According to materials. China rock wool board 1 cubic meter, with an average savings of 2,500 kcal heat /, J, time. The maximum working temperature resistance 700 ℃. Service life of 15 years. And has filled in the guard and convenient features inside. Usually with a drying room insulation coating thickness of 100 mm. Since some types of paint drying temperature about 200 ℃. Wall to reduce heat loss, insulation thickness may be appropriate, can be l5O a 200 mm insulation. (3) to reduce leaks and exhaust heat drying room heat loss from the leakage of hot air drying chamber away the heat loss, heat loss in the drying room in the account for a large proportion. One often over 2O 4O%, so. Reduce the leakage of hot air. To save energy has a very important significance. Should pay attention in the design of drying room drying room entrances and exits at both ends of the heat loss of control: ① strive to balance indoor air conditioning: a narrow entrance and the exit section 56 a (continued on page 64) beds. The current surplus machinery since more resources are available on a backing, which means there is a considerable Rene idle machine tools market, which is a potential market for machine tools, is the township and village enterprises, collective enterprises to choose an important place. 10 million units around the country idle machine tools, of which there are a considerable number of imported machine tools, machine tool market in 1995, so tight, soaring prices is unlikely. (Jiang Yao Qi) (Continued from page 56) product; ② control the drying room or oven door switch tells the population frequency and duration of use out of the workpiece and the doors open and close the linkage; @ type drying tunnel, bridge bake dry heat loss of the smallest rooms: @ a population the most common use of air curtain. Exhaust pipes and air circulation to control heat loss pipe, the link can not be ignored. * This part of the design to reduce heat loss in the same time. Hot air pipe can be considered to take advantage of waste heat kuai. For air circulation pipe heat release control. There are two ways: First, is the room air circulation pipe outside the body, increase in wall insulation, reducing heat loss; Second, is reasonably hot air circulation pipe units arranged in the chamber within the body, so that heat can be Shao fully utilized. For ease of maintenance, repair drying chamber doors are generally orange, hot air escape from under the door can not be ignored, and can be installed on the door seal asbestos. The workpiece in the drying room out of the drying process of volatile solvent vapors, will affect the drying rate of the workpiece. And accumulate to more than lower concentrations, a spark could cause an accident case, it must be discharged, but the discharge of Li taken away a lot of heat so the General Assembly to reduce the furnace temperature. Drying room should be designed to ensure that the solvent vapor concentration of l does not exceed 50% limit. Displacement per hour generally selected as the furnace volume of 10 ~ 3O times. Air conditioning ventilation systems suitable gate, so that part of the hot air circulating in the drying room, part of the dryer exhaust outdoors, in order to reduce the concentration of combustible gas dryer indoors. If the exhaust hot air outside the cold air through the heat exchanger heating supplement. You can save more energy. Can also be set in the drying chamber temperature control system and gas recovery and utilization. In summary, I believe that, although the type of paint drying equipment vary, but the proper design of reasonable drying room, so that energy consumption, thermal efficiency, is accompanied by desire, which needs further study. I believe the joint efforts of the coating industry, the provincial energy-drying chamber design will be more perfect. Issues of national unity magazine: CN44-1234/TH Editor: Liao Yu-force
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