缠绕管换热器用组合垫条
By combining the padding structure with the combined design of supporting square steel and connecting plates, the deformation problem of wound tube heat exchangers in low pressure drop and large layer spacing conditions is solved, achieving stable layer spacing and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2025-03-31
- Publication Date
- 2026-07-17
AI Technical Summary
The spacers of existing wound tube heat exchangers are prone to deformation and failure under low pressure drop and large tube spacing conditions, lacking strength support and making it difficult to meet the heat exchange requirements of large layer spacing.
The composite pad structure includes supporting square steel, connecting plates, hollows and grooves. The supporting square steel provides control over the spacing between tube bundle layers, and the connecting plates are machined into grooves for axial spacing control. They are also smoothed by welding and grinding to prevent wear.
It achieves stable tube bundle spacing under low pressure drop conditions, prevents deformation, reduces costs and improves processing efficiency, and meets the heat exchange requirements of large spacing.
Smart Images
Figure CN224517529U_ABST
Abstract
Claims
1. A combined gasket for a spiral wound heat exchanger, characterized in that: The combined pad strip includes a supporting square steel, a connecting plate, a hollowed-out section, and a groove. The connecting plate is stamped with the hollowed-out section and the groove. The supporting square steel is connected to the connecting plate. The hollowed-out section and the groove form an angle β with the vertical line.
2. The combined gasket strip for a spiral pipe heat exchanger according to claim 1, characterized by: The supporting square steel and the connecting plate are welded together, and the weld seam is ground smooth.
3. The combined gasket strip for a spiral pipe heat exchanger according to claim 1, characterized by: The edges of the connecting plate are smoothly rounded to prevent wear on the heat exchange tubes.
4. The combined gasket strip for a spiral pipe heat exchanger according to claim 1, characterized by: The β angle between the hollow and groove and the vertical line is equal to the spiral winding angle of the heat exchange tube, which is the angle between the tangent of the heat exchange tube spiral and the cross-section of the equipment.
5. The combined gasket strip for a spiral pipe heat exchanger according to claim 1, characterized by: The heat exchanger tubes are placed inside the groove.
6. The combined gasket strip for a spiral pipe heat exchanger according to claim 1, characterized by: The width a of the supporting square steel is 5-50mm, the thickness b is 1-10mm, the thickness c of the connecting plate is 2-10mm, the height d of the hollow and groove is 5-20mm, and the β angle is 1°-30°.