IP Library › Granted Patent US 12663217
Granted Patent B2
US 12663217 · App. 18/287,502 · Granted Jun 23, 2026

Tube sheet built-in type structure and spiral-flow type wound tube heat exchanger

Inventors: Jiang Tao (Zhejiang, CN); Hongliang Ren (Zhejiang, CN); Xingmiao Hu (Zhejiang, CN); Xianan Zhang (Zhejiang, CN); Yuping Li (Zhejiang, CN); Chenchen Ma (Zhejiang, CN); Shuming Lv (Zhejiang, CN)
Assignee: ZHENHAI PETROCHEMICAL JIANAN ENGINEERING CO., LTD.
F28D7/163
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Quick Facts
Patent No.
US 12663217
App. No.
18/287,502
Granted
Jun 23, 2026
Kind
B2
Abstract

The present utility model relates to the technical field of heat exchangers, and disclosed are a tube sheet built-in type structure and a spiral-flow type wound tube heat exchanger. The heat exchanger to which the tube sheet built-in type structure is applicable is provided with a housing, and comprises: a tube sheet provided inside the housing, the tube sheet being not in direct contact with the housing. According to the present utility model, the built-in type tube sheet structure is used, the tube sheet is arranged inside the housing, and the tube sheet is not directly connected to the housing, thereby reducing the longitudinal length of the device and the circumferential outreach dimensions of connecting tubes.

Claims (9)

1 . A tube sheet built-in type structure suitable for a heat exchanger, the heat exchanger comprises a housing, wherein, the tube sheet built-in type structure comprising a tube sheet, the tube sheet is provided inside the housing and is not in direct contact with the housing,

wherein the tube sheet comprising: a plate-shaped structure and a first annular structure integrally set on the outer edge of the plate-shaped structure, and

wherein the first annular structure is provided on one side of the plate-shaped structure.

2 . The tube sheet built-in type structure of claim 1 , comprising: a tubular structure that passes through the housing, one end of the tubular structure is located outside the housing, and other end of the tubular structure is located inside the housing and connected to the tube sheet.

3 . The tube sheet built-in type structure of claim 2 , wherein the tubular structure comprises: a conical portion connected to the tube sheet, a straight portion connected to the conical portion, and a joint connected to the straight portion, an end of the conical portion which has a larger inner diameter is connected to the tube sheet, and an end of the conical portion which has a smaller inner diameter is connected to the straight portion.

4 . The tube sheet built-in type structure of claim 2 , wherein the tubular structure comprises: a first straight portion connected to the tube sheet, a conical portion connected to the first straight portion, a second straight portion connected to the conical portion, and a joint connected to the second straight portion, wherein an inner diameter of the first straight portion is larger than an inner diameter of the second straight portion.

5 . The tube sheet built-in type structure of claim 4 , wherein, the inner diameter of the first straight portion is constant, and the outer diameter of the first straight portion is variable.

6 . The tube sheet built-in type structure of claim 1 , wherein the heat exchanger has a central cylinder, the tube sheet is perpendicular to an axis of the central cylinder, or the tube sheet is parallel to the axis of the central cylinder, or there is an angle between the tube sheet and the axis of the central cylinder.

7 . A spiral-flow type wound tube heat exchanger, comprises one or more of the tube sheet in-built type structures as claimed in claim 1 .