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A cast iron plate type air preheater

A technology of air preheater and cast iron plate, which is applied in the direction of heat exchanger, heat exchanger type, indirect heat exchanger, etc., can solve the problem that the air preheater cannot be compared, and achieve the effect of low leakage rate

Active Publication Date: 2011-12-07
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not comparable to cast iron plate air preheaters consisting of cast iron heat transfer plates

Method used

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  • A cast iron plate type air preheater
  • A cast iron plate type air preheater
  • A cast iron plate type air preheater

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Embodiment Construction

[0045] figure 1 It is a three-dimensional assembly diagram of a cast iron plate air preheater of the present invention. The multiple cast iron heat transfer plates 1 are connected in a three-dimensional space, the contact surfaces of the adjacent cast iron heat transfer plates are sealed with a sealing material 2, and the four sides of the adjacent cast iron heat transfer plates 1 are sealed by connecting bolts and nuts 3. The cast iron heat transfer plates 1 in the three-dimensional space are connected in three-dimensional series through the X-direction rod 6, the Y-direction rod 4 and the Z-direction rod 5. At the same time, through the X-direction rod 6, Y-direction rod 4, Z-direction rod 5, rod nut 10 and spring washer 11, the cast iron heat transfer plate 1 in the three-dimensional space, the air inlet frame 7, the left side sealing frame 8, the smoke The air inlet frame 9, the air outlet frame 12, the right side sealing frame 13, and the flue gas outlet frame 14 are tight...

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Abstract

The invention discloses a novel cast iron plate-type air preheater. The air preheater provided by the invention is mainly characterized in that a cast iron heat transfer plate comprises a center plate, an upper fin, a lower fin, a connecting plate, four quadrangular prisms, two upper shift sideboards and two sinking sideboards, the upper shift sideboards are connected with the sinking sideboards by virtue of the quadrangular prisms, the vertical direction and horizontal direction of each quadrangular prism are respectively provided with a drawbar hole, and the two drawbar holes are not communicated; paired drawbar holes at the horizontal direction of the four quadrangular prisms are coaxial, and multichip cast iron heat transfer plates are laminated up and down; and the laminated positionof the two adjacent cast iron heat transfer plates is horizontally rotated 90 degrees, and multiple drawbars are connected with the cast iron heat transfer plates into a whole in series by virtue of the drawbar holes of the multichip cast iron heat-transferring plate. The air preheater provided by the invention is suitable for being used in flue gas waste heat recovery systems of various industrial furnaces and boilers, thereby ensuring the leakage rate of the air preheater to be less than 1%.

Description

Technical field [0001] The invention belongs to the technical field of industrial furnaces, and relates to a cast iron plate air preheater, which is suitable for flue gas waste heat recovery systems of various industrial furnaces and boilers. Background technique [0002] As an energy-saving equipment, air preheaters are commonly used in flue gas waste heat recovery systems of various industrial furnaces and boilers. The main purpose of flue gas waste heat recovery is to improve the thermal efficiency of industrial furnaces and boilers and save fuel. The most common method for recovering flue gas waste heat is to install an air preheater. At present, the main problems affecting the life of the air preheater are corrosion and wear. [0003] The cast iron material has the characteristics of corrosion resistance and wear resistance, which can solve the problem that ordinary steel is susceptible to corrosion when working at a temperature close to the flue gas dew point temperature. A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23L15/00
CPCF28D9/0037F28D21/0003F28D21/001F28F3/048F28F2255/14F28F2275/14
Inventor 王德瑞杨利然
Owner CHINA PETROCHEMICAL CORP
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