CN201081599Y - Combined baffling rod swirl tube heat exchanger - Google Patents

Abstract

The utility model discloses a combined rod baffle cyclone pipe heat exchanger which comprises a cylinder body, a left water chamber arranged on the left end of the cylinder body and a right water chamber arranged on the right end of the cylinder body. A cyclone pipe is horizontally arranged inside the cylinder body, a plurality of groups of parallel distributed rod baffles which are vertically and evenly distributed and have different directions and are used to crossways lock and support the cyclone pipe are arranged in the cylinder body, a baffle ring used to fix each rod baffle is arranged at the periphery of the parallel distributed rod baffles. The utility model radically changes the prior horizontal and longitudinal flow of the fluid to the axial flow parallel to a heat transfer pipe, eliminates the vibration caused by fluid induction, ensures that the heat transfer pipe does not break and crack, eliminates stagnation zones and heat exchange dead zones in the cylinder body, effectively improves convection heat exchange coefficients inside and outside the pipe, has simple production process, small volume, small land occupation area and easy-to-peel pipe wall dirt, and can reduce the heat exchange area by more than 30 percent than the segmental baffle board heat exchanger under the same working conditions.

Description

Combined type rod baffle cyclone pipe 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 cyclone pipe heat exchanger.

Background technology

For guaranteeing that some equipment can be in operate as normal under the rated temperature and running, then must adopt fluid to carry out heat exchange to it. traditional heat exchanger is contained in the cylindrical shell with segmental baffle and light pipe usually and finishes heat exchanging process. and this structural thermal coefficient is low, mean temperature difference is little, terminal temperature difference is big, temperature is intersected difficult, 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 heat exchanger tube to lose the circle distortion.

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 cyclone pipe 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 cyclone pipe is arranged in the cylindrical shell, have vertically uniform, and different being used to of direction intersects and blocks and support the parallel distributed rod baffle of respectively organizing of cyclone pipe, and be provided with a baffling ring that is used for fixing every rod baffle in each periphery of organizing parallel distributed rod baffle, and the cyclone pipe tube wall is designed to continuous helical shape structure, and helical groove is curved.

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 cyclone pipe 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 cyclone pipe 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 30% than segmental baffle board heat exchangers.

Description of drawings

Fig. 1 is the utility model sectional structure chart.

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

Fig. 3 is the enlarged drawing of cyclone pipe among Fig. 1 (6).

Among the figure: 1, flange 2, flange 3, left hydroecium 4, sealing ring 5, tube sheet 6, cyclone pipe 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 cyclone pipe (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 cyclone pipe (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 cyclone pipe (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 cyclone pipe 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 the fixing tube sheet of cyclone pipe (5) (as Fig. 1) are housed between left and right sides hydroecium and the cylindrical shell.

With reference to Fig. 3, the utility model is designed to continuous helicoidal structure with the tube wall of cyclone pipe (6), and the helical groove cross section is curved.

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 cyclone pipe (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 cyclone pipe (6), flows into right hydroecium (9) from left to right, flows out from flange (10) again.

The utility model convertible fluids horizontal stroke, vertical flowing are axial flow, and reducing the cylindrical shell lateral pressure falls; The concaveconvex structure of cyclone pipe tube wall also can change fluid flow direction, and when acquiring a certain degree, fluid can be done rotation and entad flow, the aggravation of center turbulent flow, and near the boundary layer the tube wall reduces, and effectively improves convection transfer rate in the pipe; In cyclone pipe is managed, pipe outer variations in temperature and producing expands with heat and contract with cold, and causes that the tube wall male and fomale(M﹠F) constantly changes, tube wall incrustation is easily peeled off.Under equal operating mode, improve 30% than light pipe cambered plate heat exchanger heat exchange effect, material-saving 25%, heat exchange area reduce more than 30%, and pressure falls≤and 60%.As water---oily heat exchange important technological parameters contrasts as following table:

Claims (3)

1. combined type rod baffle cyclone pipe heat exchanger, it comprises the left hydroecium of holding about cylindrical shell (7) and cylindrical shell (3), right hydroecium (9), it is characterized in that: horizontally disposed cyclone pipe (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 cyclone pipe (12).

2. combined type rod baffle cyclone pipe 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.

3. combined type rod baffle cyclone pipe heat exchanger according to claim 1, it is characterized in that: the tube wall of cyclone pipe (6) is continuous helicoidal structure, and the curved shape in helical groove cross section.

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