Efficient heat transfer cast steel drying cylinder
A technology of cast steel and drying cylinders, which is applied in the direction of textiles and papermaking, paper machines, dryers, etc., can solve the problems of difficult temperature control and large heat loss, and achieve the effects of easy replacement, fast heat transfer and small temperature difference
Inactive Publication Date: 2013-08-14
江苏恒大弹簧制造有限公司
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Problems solved by technology
Due to the use of high-temperature steam for heating, the temperature is not easy to control, and the heat loss is large, etc.
Method used
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[0008] like figure 1 , 2 As shown, the left circular head 2 and the right circular head 3 are respectively fixedly connected to the two ends of the cast steel cylindrical cylinder 1, and the left support is fixedly connected to the outer ends of the left and right circular heads 2 and 3 respectively. Shaft 4 and right support shaft 5. A thermal insulation liner 6 is arranged in the cylindrical body 1 between the left and right circular heads 2 and 3 .
[0009] Twelve through-holes 7 are evenly distributed in the circumferential direction of the cylinder 1, and the axial directions of each through-hole 7 are parallel to the axial direction of the cylinder 1. Heat transfer sleeves 8 are respectively welded in each through-hole 7, and each heat transfer sleeve Electric heating tubes 9 are respectively arranged in the tubes 8 . 12 corresponding through holes are opened on the left circular head 2, the outer ends of the heat transfer sleeves 8 are respectively inserted in the th...
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The invention discloses an efficient heat transfer cast steel drying cylinder and relates to the technical field of paper drying in the papermaking industry. The efficient heat transfer cast steel drying cylinder is characterized in that two ends of a cast steel cylindrical cylinder body are respectively fixedly connected with a left supporting shaft and a right supporting shaft through a left circular head and a right circular head; a heat preservation inner container is arranged in the cylinder body located between the left circular head and the right circular head; and at least ten through holes are uniformly distributed in the circumferential direction of the cylinder body. Heat transfer sleeves are respectively welded in the through holes, electric heating pipes are respectively arranged in the heat transfer sleeves, the heat transfer sleeves respectively penetrate into the through holes of the left circular head, the outer ends of the electric heating pipes are respectively fixedly connected with the left circular head through fixed parts, and super-conduction materials are filled in the through holes located between the heat transfer sleeves and the cylinder body. According to the efficient heat transfer cast steel drying cylinder, the electric heating pipes arranged in the heat transfer sleeves are adopted to supply heat sources, and heat generated by the electric heating pipes after the electric heating pipes are powered on is fast conducted to the outer surface of the cast steel cylinder body with good heat preservation perforamnce through the super-conduction materials; and the electric heating pipes are easy to replace, the super-conduction materials are fast in heat transfer, and temperature difference at two ends is small.
Description
technical field [0001] The invention relates to the technical field of paper drying in the papermaking industry. Background technique [0002] The drying cylinder is used for drying and shaping equipment components in the papermaking industry. Most of the existing drying cylinders are made of steel plates, and the two ends are respectively connected to the support shaft. required high temperature. Due to the use of high-temperature steam for heating, the temperature is not easy to control, and the heat loss is large. Contents of the invention [0003] The purpose of the present invention is to propose a high-efficiency heat transfer cast steel drying cylinder which adopts electric heating and has high heat transfer efficiency. [0004] The present invention comprises a cast steel cylindrical cylinder, the two ends of the cylinder are respectively fixedly connected with left and right circular heads, and the outer ends of the left and right circular heads are respectively...
Claims
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IPC IPC(8): D21F5/02
Inventor 张天道
Owner 江苏恒大弹簧制造有限公司