Report adds thermal conductivity to heat up oily furnace to design a requirement - conduction oil bo
1 design thermic load. The room with have certain should leave between the thermic load of conduction oil furnace and effective thermic load, this one extent is 10%~15% commonly.
2 designs temperature. The design temperature of conduction oil furnace uses temperature to decide by its, should consult GB9222 " intensity of conduit boiler original is calculated " medium concerned regulation undertakes designing.
3 designs pressure. The design pressure of conduction oil should compare highest actuating pressure slightly tall, and should not be less than the open pressure of relief valve. The design pressure of gas phase furnace uses 1.2 ~1.5 the design pressure of the furnace of photograph of fluid of actuating pressure; of times should take 1.05~1.2 the poor appropriate of pressure of conduction oil imports and exports of the furnace of photograph of pressure; fluid of times is more than 0.15MPa(1.5kgf/cm2) .
The temperature of imports and exports of 4 conduction oil. The design wants from already economy safe angle sets out, design an appropriate difference in temperature to conduction oil moves mediumly in the system, this difference in temperature should be less than 30 ℃ .
5 conduction oil are providing the velocity of flow inside. Design conduction oil is providing the constant velocity of flow inside, unapt because of local overheat knot is anxious, general radiate paragraph the velocity of flow that the canal uses 2~4m/s, convection paragraph the velocity of flow that the canal uses 1.5~2.5m /s. Attend to still answers when deciding this one parameter the obstruction heating up oil inside the canal and the element that assure to heat up oil to become onflow to flow inside the canal. Tubal way is old, way of canal of tall; of criterion of velocity of flow is small, criterion of velocity of flow should a few lower.
The smooth soaking strength that 6 furnace provide. The design asks furnace is in charge of smooth soaking intensity to be inside certain limits, make conduction oil unapt thereby overheat, can make full use of again furnace is in charge of conduct heat area. General radiate paragraph the smooth soaking strength that furnace provides is 0.084~0.167GJ/(m2.h) , intensity of smooth to pipe of 6 paragraphs of heat soaking is 0.033~0.047GJ/(m2.h);
Temperature of 7 smoke evacuation. Running medium working temperature according to conduction oil, the poor best control between smoke evacuation temperature and conduction oil temperature is in 80~120 ℃ , smoke evacuation temperature is in aptly 350~400 ℃ , pass in order to make convection heating surface unapt big. To make full use of heat energy, the quantity of heat of this a few higher smoke evacuation temperature that conduction oil furnace eliminates should install more than heat to reclaim device reclaims his recycle, especially larger conduction oil furnace should give more consider and take seriously.
All 8 conduit that contact with conduction oil and accessory are forbidden mix with nonferrous metal cast-iron make, flange and 2.5MPa(of pressure of valve application nominal make an appointment with the cast steel valve of 25kgf/cm2) and above, weather strip should use data of high temperature resistant, oil resistant. Mixture of use couplet benzene conduction oil, use connection of tenon chamfer or roughness flange.
9 conduction oil furnace must be set low an a powerful person that discharge fluid, ask its can discharge only stock, ensure do not leave incomplete fluid.
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