CN107036464B

CN107036464B - A kind of high-efficiency tubular heat exchanger

Info

Publication number: CN107036464B
Application number: CN201710218927.6A
Authority: CN
Inventors: 张平亮
Original assignee: Wuxi Professional College of Science and Technology
Current assignee: Wuxi Professional College of Science and Technology
Priority date: 2017-04-06
Filing date: 2017-04-06
Publication date: 2019-01-01
Anticipated expiration: 2037-04-06
Also published as: CN107036464A

Abstract

The present invention provides a kind of high-efficiency tubular heat exchangers, can effectively improve utilization efficiency of heat energy, reduce energy consumption, have comparatively ideal heat transfer effect；It includes shell, the shell both ends are equipped with tube sheet, bobbin carriage is connected on the outside of the tube sheet at both ends, heat exchanger tube is connected between the tube sheet at both ends, the housing exterior walls have fluid inlet, fluid outlet, feed inlet is had on the bobbin carriage of two sides, discharge port, the heat exchange pipe outer wall is wound with ribbon piece, and the ribbon piece on the adjacent heat exchanger tube is positive reverse interleaved arrangement two-by-two, pipe ring is staggeredly fitted in the heat exchanger tube, plumber block, the adjacent pipe ring, it is connected between plumber block by the strut being staggered, the pipe ring outer ring is plugged in the heat exchanger tube, the pipe ring inner ring is circular layout fluted, the plumber block periphery is in step type.

Description

A kind of high-efficiency tubular heat exchanger

Technical field

The present invention relates to a kind of liquid material heat exchange equipment, specially a kind of high-efficiency tubular heat exchanger.

Background technique

Shell-and-tube heat exchanger is widely used in the fields such as petroleum, chemical industry, light industry, power, medicine, refrigeration, air-conditioning The processes such as evaporation, condensation, heating and the cooling freezing of various materials, are a kind of heat exchange equipments having a large capacity and a wide range, main to change Thermal element is exactly the heat-transfer pipe of various diameters and material, and heat-transfer pipe is the core element in heat exchanger, and structure not only influences The heat transfer coefficient of tube side, and will affect the heat transfer coefficient of shell side；And the longitudinal-flow heat exchanger of early stage is using smooth circle Pipe, heat utilization rate is low, energy consumption is high, and heat transfer effect is undesirable.

Summary of the invention

In view of the above-mentioned problems, heat energy utilization effect can be effectively improved the present invention provides a kind of high-efficiency tubular heat exchanger Rate reduces energy consumption, has comparatively ideal heat transfer effect.

Its technical solution is such that it includes shell, and the shell both ends are equipped with tube sheet, the tube sheet outside at both ends It is connected with bobbin carriage, heat exchanger tube is connected between the tube sheet at both ends, the housing exterior walls have fluid inlet, fluid goes out Mouthful, feed inlet, discharge port are had on the bobbin carriage of two sides, which is characterized in that the heat exchange pipe outer wall is wound with ribbon piece, And the ribbon piece on the adjacent heat exchanger tube is positive reverse interleaved arrangement two-by-two, and pipe is staggeredly fitted in the heat exchanger tube Ring, plumber block, by the strut connection being staggered between the adjacent pipe ring, plumber block, the pipe ring outer ring is plugged in described In heat exchanger tube, the pipe ring inner ring be circular layout it is fluted, the plumber block periphery in step type.

It is positive polygonized structure it is further characterized by, the plumber block, and each edge is in step type；

The pipe ring, plumber block outer diameter no more than the heat exchanger tube internal diameter；

The heat exchanger tube is smooth pipe, and the groove is at least provided with 8, the strut at least 2.

The invention has the advantages that different material enters shell, in heat exchanger tube by fluid inlet, feed inlet respectively, it is first It first passes through and is wound with ribbon piece in heat exchange pipe outer wall, and the ribbon piece on heat exchanger tube adjacent two-by-two is positive reverse interleaved arrangement, it can Achieve the purpose that radially to mix using the Secondary Flow that spiral flow generates, causes the strong disturbance of fluid, and pressure drop is little, greatly Enhance heat transfer；Secondly it staggeredly is fitted with pipe ring, plumber block in heat exchanger tube, the strut between pipe ring, plumber block by being staggered Connection, pipe ring inner ring be circular layout it is fluted, plumber block periphery in step type, then using groove, plumber block structure and staggeredly The strut of setting, effectively expands heat transfer area, and the convex-concave wall surface that pipe ring and plumber block are formed in heat exchanger tube can cause fluid Strong disturbance can promote the turbulivity of fluid, greatly enhance heat transfer, to can effectively reduce energy consumption, improve heat energy utilization Efficiency, good effect of heat exchange.

Detailed description of the invention

Fig. 1 is structural schematic diagram of the invention；

Fig. 2 is the partial enlargement diagram of adjacent heat exchanger tube；

Fig. 3 is the C-C of Fig. 2 to structural schematic diagram；

Fig. 4 is partial structural diagram inside heat exchanger tube；

Fig. 5 is the A-A of Fig. 4 to structural schematic diagram；

Fig. 6 is the B-B direction structural schematic diagram of Fig. 4.

Specific embodiment

As shown in Fig. 1 ~ Fig. 6, the present invention includes shell 1, and 1 both ends of shell are equipped with tube sheet 2, connect on the outside of the tube sheet 2 at both ends There is bobbin carriage 3, heat exchanger tube 4 is connected between the tube sheet 2 at both ends, heat exchanger tube 4 is smooth pipe, and the upper wall outside shell 1 is provided with fluid Import 5, the lower wall outside shell 1 are provided with fluid outlet 6, and 3 upper end of bobbin carriage of side is provided with feed inlet 7,3 lower end of bobbin carriage of the other side Be provided with discharge port 8,4 outer wall of heat exchanger tube is wound with ribbon piece 9, and the ribbon piece 9 on heat exchanger tube 4 adjacent two-by-two be positive it is reverse interleaved Arrangement is staggeredly fitted with pipe ring 10, plumber block 11 in heat exchanger tube 4, pipe ring 10, plumber block 11 outer diameter no more than heat exchanger tube 4 Internal diameter；By 2 struts 12 connection being staggered between adjacent pipe ring 10, plumber block 11,10 outer ring of pipe ring is plugged in heat exchange In pipe 4,10 inner ring of pipe ring, which is circular layout, 8 grooves 13, and plumber block 11 is positive quadrilateral structure, and each edge is in step type.

The course of work of the invention is, a kind of material is entered in heat exchanger tube 4 by feed inlet 7 by tube sheet 2, then from discharging Mouth 8 is discharged, and when material skims over the groove 13 of pipe ring 10 first, is acted on by the convex-concave of groove 13, can cause boundary layer separation and subtract Book boundary layer thickness makes fluid form screw, strengthens Radial Perturbation and produce local secondary stream, while groove 13 can Cause extraneous turbulence；Then by 2 struts 12 being staggered, so that fluid is formed fluid turbulent, generate fluid in pipe Continuous cyclone, Secondary Flow caused by spiral flow promote radial mixing, thus can convective heat transfer in enhanced tube；Finally by plumber block 11, since plumber block 11 is positive quadrilateral structure, and each edge, in step type, the outside wall surface of plumber block 11 forms convex-concave structure, can make By 4 inner wall of fluid displacement heat exchanger tube of strut 12, cycle operation, wall surface fluid among dislocation, promotes boundary layer to generate again Flow-disturbing, while there is boundary layer separation and cutting function, to fluid generate disturbance or destroy tube wall surface liquid boundary layer and Achieve the purpose that augmentation of heat transfer, improve thermal effect, and has the effect of antiscale, scale removal；

Another medium is entered between shell and more heat exchanger tubes 4 by fluid inlet 5, is then discharged from fluid outlet 6, by In medium by the ribbon piece effect in the forward and reverse interlaced arrangement of 4 outer wall of heat exchanger tube two-by-two, the Secondary Flow generated using spiral flow It can reach the purpose radially mixed, the strong disturbance of fluid can be caused, greatly enhance heat transfer, and pressure drop is little, to increase Big shell-side fluid flow velocity and fluid heat transfer coefficient, improve heat transfer effect, and ribbon piece can be borrowed to support mutually and cancel existing The baffling support plate in heat exchanger is needed, tubing is saved, same heat conduction reinforced effect can be obtained with less energy consumption Fruit.

Claims

1. a kind of high-efficiency tubular heat exchanger comprising shell, the shell both ends are equipped with tube sheet, manage described in the shell both ends It is connected with bobbin carriage on the outside of plate, heat exchanger tube is connected between tube sheet described in the shell both ends, the housing exterior walls have stream Body import, fluid outlet have feed inlet, discharge port on the bobbin carriage of two sides, which is characterized in that outside the heat exchanger tube Wall is wound with ribbon piece, and the ribbon piece on the heat exchanger tube adjacent two-by-two is positive reverse interleaved arrangement, in the heat exchanger tube It is staggeredly fitted with pipe ring, plumber block, is connected between the adjacent pipe ring, plumber block by the strut being staggered, outside the pipe ring Circle be plugged in the heat exchanger tube, the pipe ring inner ring be circular layout it is fluted, the plumber block periphery in step type.

2. a kind of high-efficiency tubular heat exchanger according to claim 1, which is characterized in that the plumber block is regular polygon knot Structure, and each edge is in step type.

3. a kind of high-efficiency tubular heat exchanger according to claim 1, which is characterized in that the outer diameter of the pipe ring, plumber block No more than the internal diameter of the heat exchanger tube.

4. a kind of high-efficiency tubular heat exchanger according to claim 1, which is characterized in that the heat exchanger tube is smooth circle Pipe, the groove is at least provided with 8, the strut at least 2.