A kind of sideboard shell-and-tube heat exchanger and design method thereof

A shell-and-tube heat exchanger and design method technology, applied in indirect heat exchangers, heat exchanger types, heat exchanger shells, etc., can solve the problems of low high pressure resistance, complex process, easy leakage, etc. To achieve the effect of reducing the velocity gradient of the flow field and reducing the resistance loss

Active Publication Date: 2020-09-25
CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most marine heat exchangers are shell-and-tube heat exchangers. In traditional plate and shell-and-tube heat exchangers, the process of plate heat exchangers is complicated, and the resistance of seawater to flow through the plates is relatively large. High pressure capability is not strong, prone to leakage

Method used

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  • A kind of sideboard shell-and-tube heat exchanger and design method thereof
  • A kind of sideboard shell-and-tube heat exchanger and design method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] D = 100mm, α = 0.45, R = 100mm, β = 0.35, assuming that the machining control accuracy is level 7, C = 5, according to the above formula

[0035] r=0.45*100+0.35*100+5=85

Embodiment 2

[0036] Embodiment 2: D = 150mm, α = 0.40, R = 200mm, β = 0.25, assuming that the processing control precision is 8 grades, C = 10, according to the above formula

[0037] r=0.40*150+0.25*200+10=120

[0038] According to the minimum curvature radius r of the variable diameter surface in the water collection chamber obtained above, the design of the shell-and-tube heat exchanger can be realized.

[0039] Such as figure 1 , figure 2 As shown, a shell-and-tube heat exchanger designed by the method of the present invention includes a shell 4 with a fresh water inlet 401 and a fresh water outlet 402, a tube sheet 3, a heat exchange tube 6 and a baffle 7, and the tube sheet 3 They are respectively installed at both ends of the shell 4, and a plurality of baffles 7 arranged at intervals are arranged radially inside the shell 4, and mounting holes are provided on each tube sheet 3 and baffles 7, and a plurality of baffles The heat exchange tubes 6 pass through the mounting holes of...

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Abstract

The invention relates to an inboard shell-and-tube heat exchanger and its design method. The structure of the invention includes a water collection chamber, one end of the water collection chamber is connected with the outside of the tube plate to form an integrated structure, and the water collection chamber and the outside of the tube plate The joint is a variable diameter structure. In the present invention, the water collecting chamber of the heat exchanger is designed as a variable-diameter structure with a smooth transition, and it adopts an integrated design with the heat exchanger. The resistance loss reduces the flow field velocity gradient of seawater flowing into the heat exchanger, which is more in line with the flow characteristics. In the present invention, the seawater directly goes through the tube side, and the fresh water goes through the shell side, so that the tube side seawater and the shell side fresh water flow in reverse to facilitate heat transfer between the two.

Description

technical field [0001] The invention relates to the field of ship and submarine equipment, in particular to an inboard shell-and-tube heat exchanger used in a deep-sea artesian circulation cooling system and a design method thereof. Background technique [0002] The conventional seawater circulation scheme sets all the cooling systems inside the cabin. Although it is convenient for maintenance, large heat exchangers, circulating water pumps and other equipment will occupy the interior cabin space. Arranging heat exchangers, circulating water pumps and other equipment outboard can simplify system layout and increase cabin space. Different from conventional onshore heat exchangers, if the heat exchanger is the core component of the deep-sea artesian circulation cooling system, if it is arranged outboard, it will be beneficial to its heat exchange and will inevitably make the heat exchanger withstand high seawater back pressure . [0003] At present, most marine heat exchange...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/16F28F9/02G06F30/17G06F119/06G06F119/08
CPCF28D7/16F28F9/02G06F2119/08G06F30/17G06F2119/06
Inventor 张万良陈康仝潘夏彬周恩东
Owner CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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