Shutter-shaped baffle plate fixed tube-sheet heat exchanger and machining and installing method

A technology of fixed tube-sheet type and baffle plate, applied in the direction of heat exchanger type, heat exchanger shell, indirect heat exchanger, etc., can solve the problem of strict shell-side flow velocity and tube bundle arrangement, complex structure, manufacturing and installation, power equipment High power and other problems, to achieve the effect of good anti-fouling performance, easy assembly, and reduced pump power

Active Publication Date: 2016-06-29
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many problems in the commonly used traditional bow-shaped baffle shell-and-tube heat exchangers: (1) The shell side forms a "Z" shape to restrict the outflow. This flow form has a large resistance along the way and requires a large power of power equipment; ( 2) The flow dead zone is easy to form behind the vertical baffles, resulting in a decrease in heat transfer efficiency and serious scaling; (3) The fluid with a certain speed "sweeps" the tube bundle, which induces vibration of the heat transfer tube bundle and shortens its service life
[0004] Among them, the spiral baffle rod heat exchanger can effectively reduce the flow dead zone, and has greatly ...

Method used

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  • Shutter-shaped baffle plate fixed tube-sheet heat exchanger and machining and installing method
  • Shutter-shaped baffle plate fixed tube-sheet heat exchanger and machining and installing method
  • Shutter-shaped baffle plate fixed tube-sheet heat exchanger and machining and installing method

Examples

Experimental program
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Effect test

Embodiment approach 1

[0042] see figure 1 As shown: the louver-shaped baffle plate fixed tube-sheet heat exchanger of the present invention includes a tube-side inlet tube box 1, a shell 2, a heat exchange tube bundle 3, a tube-side fluid inlet 4, a tube-side fluid outlet 5, and a shell-side fluid Inlet 6, shell side fluid outlet 7, tube side outlet tube box 8, louver-shaped baffle plate 9, tube sheet 10. The tube boxes are located at both ends of the heat exchanger, and the tube-side fluid inlet 4 and the tube-side fluid outlet 5 are welded on the tube-side inlet tube box 1 and the tube-side outlet tube box 8 . The shell-side fluid inlet 6 and the shell-side fluid outlet 7 are welded on the shell 2, and the positions are shown in the figure. The heat exchange tube bundles 3 are inserted into the louver-shaped baffles 9 , and both ends are welded and fixed on the tube sheets 10 . The louver-shaped baffles 9 are welded to the casing 2 equidistantly along the tube axis direction. As shown in the ...

Embodiment approach 2

[0049] The width of each blade is 25% of the shell diameter, the inclination angle θ is 80°, and its thickness is determined jointly by the unsupported span of the heat exchange tube and the nominal diameter of the shell, and the range is 22mm. Others are the same as Embodiment 1.

Embodiment approach 3

[0051] The width of each blade is 20% of the shell diameter, the inclination angle θ is 10°, and its thickness is determined jointly by the unsupported span of the heat exchange tube and the nominal diameter of the shell, and the range is 3mm. Others are the same as Embodiment 1.

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Abstract

The invention discloses a shutter-shaped baffle plate fixed tube-sheet heat exchanger and a machining and installing method and belongs to the technical field of heat exchangers used in industries of petrochemical engineering, energy power and the like. The shutter-shaped baffle plate fixed tube-sheet heat exchanger is characterized in that a heat exchange tube bundle installed on a shutter-shaped baffle plate in a penetrating and inserted manner is arranged in a heat exchanger shell; the heat exchange tube bundle is connected to fixed tube sheets arranged between a tube box and the shell in an expanded manner or is welded and fixed to the fixed tube sheets arranged between the tube box and the shell. A tube side inlet is formed in the upper side of a front tube box body, and a tube side outlet is formed in the lower side of a rear tube box body. A shell side outlet is formed in the upper side of the shell, and a shell side inlet is formed in the lower side of the shell. The shutter baffle plate is composed of a baffle ring and shutter blades arranged at a certain inclination angle. A flowing flow field of a shell side is even, a flowing dead zone of the shell side is small, meanwhile, the local fluid turbulence level is improved through the shutter baffle plate, the heat exchange efficiency is improved, consumption of pump power under the same heat exchange amount is reduced, the structure is compact, installing and machining are simple, scaling is not liable to be generated, the service life is long, and the shutter-shaped baffle plate fixed tube-sheet heat exchanger is suitable for occasions such as petrochemical engineering and power plants where fluid flow is large and consumption of pump power is large.

Description

technical field [0001] The invention relates to a louver-shaped baffle-fixed tube-sheet heat exchanger and a processing and installation method thereof, belonging to the technical field of heat exchangers used in petrochemical, energy and power industries, and in particular to a louver-shaped baffle-fixed tube-sheet heat exchanger The technical scheme of the processing and installation method of the heat exchanger and the louver-shaped baffle. Background technique [0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, and plays an important role in chemical, petroleum, food and many other industrial productions. In chemical production, it can be used as a heater, cooler, condenser, evaporator, etc., and is widely used. Among them, the shell-and-tube heat exchanger is the majority, which has a series of advantages such as easy manufacture, low production cost, wide range of material selection, convenient cleaning, strong adaptab...

Claims

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Application Information

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IPC IPC(8): F28D7/16F28F9/24
CPCF28D7/16F28F9/24Y02P20/10
Inventor 雷勇刚李亚子宋翀芳景胜蓝王飞
Owner TAIYUAN UNIV OF TECH
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