CN201032429Y

CN201032429Y - Combined baffling lever wave node tube heat exchanger

Info

Publication number: CN201032429Y
Application number: CNU2007200370983U
Authority: CN
Inventors: 李明祥; 黄永福; 戴正军
Original assignee: YANGZHONG TENGFENG HEAT EXCHANGE EQUIPMENT MANUFACTURE CO Ltd
Current assignee: YANGZHONG TENGFENG HEAT EXCHANGE EQUIPMENT MANUFACTURE CO Ltd
Priority date: 2007-04-24
Filing date: 2007-04-24
Publication date: 2008-03-05
Anticipated expiration: 2017-04-24

Abstract

The utility model relates to a composite rod-baffle corrugated tube heat exchanger, comprising a drum body, a left water chamber and a right water chamber respectively located at the left and the right end of the drum body. The corrugated tube is horizontally arranged in the drum body, and groups of vertically, parallel and evenly distributed rod-baffles in different directions intercross, block and support the corrugated tubes, and the peripheral of the rod-baffles are provided with a ring-baffle to fix every rod-baffle. The utility model radically changes the original horizontal and vertical flow of the fluid into axial flow parallel to the heat conducting tubes, eliminates the vibrations induced by the fluid, ensures that the heat conducting tubes do not break and fracture, removes the stagnation point and heat exchange dead point, and effectively enhances the convective heat exchange coefficient inside and outside the tubes. The utility model has the advantages of simple fabrication technique, small size and land occupying and easily peeled tube wall scale and can save heat exchange area by more than 50% when being compared with arch shaped plate-baffle heat exchanger.

Description

Combined type rod baffle waved tube heat exchanger

Technical field

The utility model is applicable to the heat exchanger of the equipment that needs rated temperature, especially a kind of combined type rod baffle waved tube heat exchanger.

Background technology

For guaranteeing that some equipment can then must adopt fluid to carry out heat exchange to it in operate as normal under the rated temperature and running.The logical heat exchanger of biography is contained in the cylindrical shell with segmental baffle and light pipe usually finishes heat exchanging process.This structural thermal coefficient is low, and mean temperature difference is little, and terminal temperature difference is big, and temperature is intersected difficult, and body is heavy, and floor space is big, easily fouling and blocking pipe.Multiple tracks technologies such as segmental baffle need cutting, turning, punching, grinding, hundreds of heat exchanger tubes are in the thousands of holes of 5 above segmental baffles, and the concentricity in each hole is difficult to reach, and the poling difficulty is very big, easily causes the distortion of heat exchanger tube tube wall.

For overcoming the above problems, Beijing University of Technology's patent (ZL93213223.5) proposes the cyclone pipe heat exchanger, but when fluid breakthrough nominal flow rate or lateral flow, can occur remaining in a standstill and the heat exchange dead band in the pipe and in the housing, increase thermal resistance, the vibration that causes because of flow-induced easily causes tube wall to break.Qinhuangdao east swallow Energy Saving Technology Co's patent (ZL00201358.4) proposes to replace light pipe or cyclone pipe with bellows tube, realized the heat transfer coefficient height, fluid flow resistance is little, less scaling and the thermal stress automatic compensation function, but has been difficult to the augmentation of heat transfer effect when pipe side liquid flow velocity is very fast.The new structure of U.S. Philips company patent proposition in 1970 deflection rod heat exchanger, replace segmental baffle with it, solved the vibration that flow-induced causes, eliminated the heat exchange dead band,---vapour, water---oily heat exchange plays reduction vapour to water, oily lateral pressure is fallen,---the oily medium of water, vapour---vapour, oil---only works to reduce water, vapour, oily lateral pressure and falls, and the raising of heat exchanging effect is obvious inadequately also to improve heat exchange efficiency, but to water.

Summary of the invention

Technical problem to be solved in the utility model: be to provide a kind of vibration that can eliminate the heat exchange dead band and cause because of flow-induced, less scaling, reduce pressure consumption, can realize managing the inside and outside combined type rod baffle waved tube heat exchanger of augmentation of heat transfer effect simultaneously any fluid.

For solving the technical scheme that above technical problem adopts is such: the utility model comprises the left hydroecium and the right hydroecium of cylindrical shell and the left and right end of cylindrical shell, it is characterized in that: horizontally disposed bellows tube is arranged in the cylindrical shell, have vertically uniform, and different being used to of direction intersect and block and support the parallel distributed rod baffle of respectively organizing of bellows tube, and be provided with a baffling ring that is used for fixing every rod baffle in each periphery of organizing parallel distributed rod baffle.

Because adopt above technical scheme, its beneficial effect is conspicuous:

1, fundamentally change original fluid laterally, vertically flow for being parallel to the axial flow of heat-transfer pipe, eliminated the vibration that produces because of flow-induced, guaranteeing that heat-transfer pipe is broken does not split, and has eliminated stagnant area and heat exchange dead band in the cylindrical shell.

2, the utility model manufacture craft is simple, and volume is little, and floor space is little.

3, because the bellows tube caliber constantly changes, under low flow velocity, can make fluid reach turbulence state, so effectively improved the inside and outside convection transfer rate of pipe.

4, the managed internal-external temperature difference of bellows tube changes and produces and expand with heat and contract with cold, and causes that ripple curvature constantly changes, and tube wall incrustation easily peels off.Under equal operating mode, can reduce heat exchange area more than 50% than segmental baffle board heat exchangers.

Description of drawings

Fig. 1 is the utility model part section structure chart.

Fig. 2 is the amplification stereogram of bellows tube among Fig. 1 (6), baffling ring (11), rod baffle (12).

Fig. 3 is the enlarged drawing of bellows tube among Fig. 1 (6).

Among the figure: 1, flange 2, flange 3, left hydroecium 4, sealing ring 5, tube sheet 6, bellows tube 7, cylindrical shell 8, flange 9, right hydroecium 10, flange 11, baffling ring 12, parallel distributed rod baffle 13, the double backstay of support

The specific embodiment

As Fig. 1, the utility model comprises the left hydroecium (3) and the right hydroecium (9) of cylindrical shell (7) and the left and right end of cylindrical shell, be horizontally disposed with bellows tube (6) in cylindrical shell, and be provided with vertically uniformly, and different being used to of direction intersects and blocks and support the parallel distributed rod baffle of respectively organizing of bellows tube (12); Each periphery of organizing parallel distributed rod baffle (12) is provided with a baffling ring (11) that is used for fixing every rod baffle.As Fig. 2, according to technical parameters such as fluid type, temperature, flow velocity, pressure, mate parallel distributed rod baffle (12) with different directions at a certain distance, among then the bellows tube (6) that conducts heat being organized the checkerwork cell of parallel distributed rod baffle (12) formation through each, the upper and lower, left and right of every bellows tube are all supported reliably, and convenient to operation, tube wall can not be out of shape.By supporting the backstay (13) of holding concurrently each baffling ring (11) is positioned then, and put into cylindrical shell (7).The cylindrical shell left end is left hydroecium (3), and right-hand member is right hydroecium (9), and sealing ring (4) and tube sheet (5) (as Fig. 1) are housed between left and right sides hydroecium and the cylindrical shell.

With reference to Fig. 1, the utility model at work, hot fluid is entered in the cylindrical shell (7) by flange (8), passes through the periphery of parallel distributed rod baffle (12) and bellows tube (6) from right to left, flows vertically, is flowed out by flange (1).In addition, cold fluid enters left hydroecium (3) by flange (2), and through in the bellows tube (6), flows into right hydroecium (9) from left to right, flows out from flange (10) again.Because the managed internal and external temperature of bellows tube changes and constantly expands with heat and contract with cold, and ripple curvature is constantly changed, tube wall incrustation peels off thereupon, has strengthened resistive connection dirt ability, has effectively improved the inside and outside heat transfer coefficient of pipe.

Claims

1. combined type rod baffle waved tube heat exchanger, left hydroecium (3) and right hydroecium (9) that it comprises cylindrical shell (7) and the left and right end of cylindrical shell is characterized in that: horizontally disposed bellows tube (6) is arranged in the cylindrical shell; Have vertically uniformly, and different being used to of direction intersects and blocks and support the parallel distributed rod baffle of respectively organizing of bellows tube (12).

2. combined type rod baffle waved tube heat exchanger according to claim 1 is characterized in that: in each periphery of organizing parallel distributed rod baffle (12), be provided with a baffling ring (11) that is used for fixing every rod baffle.