CN203349686U - Tubular heat exchanger and continuous composite spiral baffle plate thereof - Google Patents
Tubular heat exchanger and continuous composite spiral baffle plate thereof Download PDFInfo
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- CN203349686U CN203349686U CN 201320253819 CN201320253819U CN203349686U CN 203349686 U CN203349686 U CN 203349686U CN 201320253819 CN201320253819 CN 201320253819 CN 201320253819 U CN201320253819 U CN 201320253819U CN 203349686 U CN203349686 U CN 203349686U
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- heat exchanger
- continuous
- housing
- baffle plate
- helical baffles
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Abstract
The utility model provides a tubular heat exchanger and a continuous composite spiral baffle plate of the tubular heat exchanger. The continuous composite spiral baffle plate comprises a plurality of spiral baffle plate units arranged in a tubular shell body. The spiral baffle plate units are connected end to end in the axial direction of the tubular heat exchanger, so that a medium inside the shell body flows in a spiral line mode. Each spiral baffle plate unit is provided with a continuous spiral portion which is located outside the spiral baffle plate unit and of a continuous spiral curved face and a non-continuous spiral portion located inside the spiral baffle plate unit and comprising a plurality of sector panels, wherein the sector panels are non-continuous spiral curved faces. The tubular heat exchanger comprises the shell body, two tubular plates, heat exchanging pipes, an inlet pipe, an outlet pipe, the spiral baffle plate and a spiral baffle plate fixing device. According to the technical scheme, vibration of the heat exchanging pipes is reduced, the capacity of heat transmission is improved, and resistance is reduced.
Description
Technical field
The utility model belongs to the shell-and-tube heat exchanger field that the industries such as oil refining, chemical industry, electric power, metallurgy, light industry, medicine, food are used, particularly a kind of shell-and-tube heat exchanger and composite screw deflection plate continuously thereof.
Background technology
Shell-and-tube heat exchanger is a kind of heat transmission equipment for industries such as oil refining, chemical industry, electric power, because it has the advantage such as simple in structure, sturdy and durable, cheap, is widely used.
Shell-and-tube heat exchanger generally adopts the spiral baffling plate structure to make the mobile spiral line type mode that is of shell side medium to carry out heat exchange at present.The basic configuration of spiral baffling plate structure is fan-shaped, every deflection plate and housing shaft are linear at a certain angle, adjacent deflection plate is at similar helix continuous along excircle of the end to end formation of periphery, thereby play the flow regime effect that changes shell-side fluid, reach the reduction fluid resistance, improve flow velocity, reduce fouling, and then improve the purpose of heat transfer efficiency.Application result shows, shell side adopts the spiral baffling plate structure to adopt vertical segmental baffle structure to have the advantage that reduces the shell-side fluid Pressure Drop, can improve heat output under certain condition.The spiral baffling plate structure makes heat exchanger have good antiscale characteristic, is applicable to easy fouling, the full-bodied medium augmentation of heat transfer as crude oil, residual oil etc.
In prior art, the spiral line type mode of spiral baffling plate structure can be divided into two classes: discontinuous type and continuous type.
Discontinuous type helical baffles generally forms an approximate helicoid by 4 sector flat plates, make fluid be approximate screw, with traditional segmental baffle, compare, fluid resistance can reduce, heat output increases, but because the splicing of the head and the tail at fanning strip has gap, easily cause the fluid Short circuit leakage, after maximizing, heat transfer characteristic may reduce.
Continuous helical shape baffles is a continuous helicoid, can realize the screw of fluid continuous and stable; But this type of deflection plate need arrange central tube, make the central tube zone can not heat exchanger tube be set and lost the part heat transfer area.In Chinese patent ZL200820117711.7, a kind of " pin-connected panel continuous spiral baffle plate heat exchanger " proposed, this heat exchanger is comprised of agent structure, deflection plate, connecting plate, heat exchanger tube, its deflection plate is fan-shaped, and the adjacent baffle straight flange is connected at an angle of 90 with the connecting plate of approximate isosceles triangle.The splicing of the head and the tail of this patent fanning strip is due to seamless so can not produce fluid Short circuit leakage phenomenon, although solved the existing problem of discontinuous type spiral baffle heat exchanger, fluid is approximate screw, but its fluid resistance is higher than the continuous spiral baffle plate heat exchanger that central tube is arranged.
Summary of the invention
In order to solve the problem of prior art, the utility model provides a kind of continuous composite screw deflection plate of shell-and-tube heat exchanger on the one hand, described continuous composite screw deflection plate comprises: be arranged at a plurality of helical baffles unit in the shell housing, a plurality of described helical baffles unit is along the end to end setting of the axis direction of shell-and-tube heat exchanger so that the mobile spiral line type mode that is of medium in housing; Described helical baffles unit has: continuous helical section, be positioned at the outside of described helical baffles unit, and be the continuous helical curved surface; Discontinuous spire, be positioned at the inside of described helical baffles unit, comprises a plurality of fan-shaped panels, and a plurality of described fan-shaped panels are discontinuous spiral camber.
In continuous composite screw deflection plate as above, described helical baffles unit preferably also comprises connecting plate, and the straight flange of adjacent described fan-shaped panel connects to form discontinuous spiral camber by described connecting plate.
In continuous composite screw deflection plate as above, described connecting plate is preferably isosceles triangle.
In continuous composite screw deflection plate as above, described fan-shaped panel is 4.
The utility model provides a kind of shell-and-tube heat exchanger on the other hand, and described shell-and-tube heat exchanger comprises: housing; Two tube sheets, be arranged at respectively the two ends of described housing; Heat exchanger tube, be set in parallel in described housing along the axis direction of described housing; Inlet tube, be arranged on described housing; Outlet, be arranged on described housing; Helical baffles, be arranged in described housing, is useful on the through hole that described heat exchanger tube runs through on described helical baffles; And the deflection plate fixture, be arranged in described housing, to fix described helical baffles; Described helical baffles is according to above-mentioned continuous composite screw deflection plate.
The accompanying drawing explanation
Fig. 1 is the structural representation of the continuous composite screw deflection plate of the shell-and-tube heat exchanger that provides of the utility model preferred embodiment;
Fig. 2 is the structural representation of the shell-and-tube heat exchanger that provides of the utility model preferred embodiment;
Wherein, description of reference numerals is as follows:
1 helical baffles unit,
11 continuous helical sections, 12 discontinuous spires, 13 connecting plates,
2 housings, 3 bobbin carriages, 41 fixed tube sheets,
42 floating tubesheets and floating head, 5 heat exchanger tubes, 6 inlet tubes,
7 outlets, 8 deflection plate fixtures.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Shown in Fig. 1 and Fig. 2, the utility model provides a kind of continuous composite screw deflection plate of shell-and-tube heat exchanger, it comprises a plurality of helical baffles unit 1 be arranged in shell housing 2, the plurality of helical baffles unit 1 is along the end to end setting of the axis direction of shell-and-tube heat exchanger so that the mobile spiral line type mode that is of medium (shell side medium) in housing, any in a plurality of helical baffles unit 1 has: continuous helical section 11, be positioned at the outside of helical baffles unit 1, be the continuous helical curved surface; And discontinuous spire 12, be positioned at the inside of helical baffles unit 1, comprise a plurality of fan-shaped panels, a plurality of fan-shaped panels are discontinuous spiral camber, and the projection on horizontal plane (plane vertical with axis direction) forms a circle.The applicable interior medium of housing of the utility model is preferably easy fouling, full-bodied medium, and for example crude oil, residual oil, can be also water, steam etc.
In actual applications, continuous helical section 11 forms a whole with discontinuous spire 12, this integral body is helical baffles unit 1, the outside of this helical baffles unit (outside) is continuous helical curved surface, inboard (inside) is radially cut apart to center at the certain diameter place, form several piece plane of bending fanning strip (sector), this several piece plane of bending fanning strip forms discontinuous spiral camber, this fanning strip comprises two straight flanges, the arc-shaped side of its fanning strip is divided into the helical baffles unit inner and outside, is positioned at inner and outside place, line of demarcation.
In order further to reduce fluid resistance, helical baffles unit 1 preferably also comprises connecting plate 13, and the straight flange of adjacent fan-shaped panel connects to form discontinuous spiral camber by connecting plate 13.Connecting plate is preferably triangle, further is preferably isosceles triangle.
For the manufacture of the helical baffles unit that makes continuous composite screw deflection plate simple, thereby realize maximizing, fan-shaped panel is preferably 4.
In order further to reduce fluid resistance, in the helical baffles unit, the central area of the inboard of approximate helicoid preferably can also increase by a discontinuous helical baffles (not shown), this discontinuous helical baffles comprises a plurality of fanning strips, the plurality of fanning strip is arranged to a discontinuous spiral line type, make the interior medium of housing be approximate helicoid and flow, the pitch of this discontinuous helical baffles equals the pitch of the continuous helical section in the continuous composite screw deflection plate outside.
Shown in Figure 2, the utility model provides a kind of shell-and-tube heat exchanger, and it comprises: housing 2; Bobbin carriage 3; Two tube sheets, be arranged at respectively the two ends of described housing 2; Heat exchanger tube 5, be set in parallel in described housing 2 along the axis direction of described housing 2; Inlet tube 6, be arranged on described housing 2, for medium in housing (material), enters; Outlet 7, be arranged on described housing 2, for flowing out after media for heat exchange in housing; Helical baffles, be arranged in described housing 2, is useful on the through hole that described heat exchanger tube runs through on described helical baffles, and heat exchanger tube 5 is fixed on the tube sheet at two ends through the through hole of helical baffles; And deflection plate fixture 8, be arranged in described housing 2, to fix described helical baffles; Wherein, helical baffles is according to above-mentioned continuous composite screw deflection plate.
It should be noted that, in actual applications, two tube sheets can be two fixed tube sheets, can also for one be fixed tube sheet 41, another is floating tubesheet and floating head 42.The deflection plate fixture can be distance sink tube and pull bar, can also be fixed on the fixture in housing for other can make deflection plate.Figure 2 shows that the floating head type shell-and-tube heat exchanger of two tube sides, the continuous compound deflection plate that the present embodiment provides can also be for fixed tube-sheet exchanger, and the present embodiment is not limited this.
Below introduce the operation principle of the shell-and-tube heat exchanger that the utility model provides:
The position that the outer wall of the inwall of housing, continuous composite screw deflection plate, connecting plate, heat exchanger tube and deflection plate fixture approach housing at continuous composite screw deflection plate forms the sealing screw passage jointly, form approximate helical duct in the central area of shell-and-tube heat exchanger, at the centre fluid, form approximate screw; Side liquid forms continuous helical shape and flows outside, makes in housing medium (material) enter after housing externally to be the spiral line type type of flow under pressure-acting to flow forward.Thereby avoided the leakage current phenomenon, reduced fluid resistance, reduced deposition of solid, strengthened heat transfer.
The actual fabrication process of composite screw deflection plate can be with reference to following method continuously, the utility model is not limited only to this, the helical baffles that can also adopt other manufacturing process to provide to produce this utility model, for example: the internal diameter that need to manufacture housing (cylindrical shell) is DN1400mm, helical pitch (pitch) is 320mm, and spiral baffling sheet metal forming posterior axis diameter projected is Ф 1392mm.In making, can be Ф 1396mm by diameter, and the round blanking that thickness is 8mm, and with the inner radial 400mm quartering, this is justified from circle centre position, outside 298mm partly keeps connecting, one of them radius i.e. (comprising inner Radius 400mm and the outside 298mm be connected with this radius 400mm) all disconnections, utilize mold by one group of continuous composite screw deflection plate (helical baffles unit) moulding so that the mobile spiral line type mode that is of the interior medium of housing, after moulding, inside becomes approximate spiral camber, deflection plate by four quadrants forms, its length of side is 400mm, height is 398mm, the end is 80mm.Outside becomes the continuous helical curved surface.And by each group, connect as a whole to form continuous composite screw deflection plate bore the heat exchange pore on the helical baffles unit after.
In sum, the beneficial effects of the utility model are as follows:
One, form approximate helical duct in the heat exchanger central area; Flowing near outer side liquid formation continuous helical shape, reduce fluid resistance, alleviate dirt deposition; Form approximate screw in centre, improved heat output, reduced resistance.
Two, the composite screw deflection plate is easily manufactured continuously, is convenient to maximize.
Three, be conducive to reduce the vibrations of heat exchanger tube, improve reliability.
Four, omit central tube, increased heat exchange area.
Five, solved fluid Short circuit leakage problem.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. the continuous composite screw deflection plate of a shell-and-tube heat exchanger, it is characterized in that, described continuous composite screw deflection plate comprises: be arranged at a plurality of helical baffles unit in the shell housing, a plurality of described helical baffles unit is along the end to end setting of the axis direction of shell-and-tube heat exchanger so that the mobile spiral line type mode that is of medium in housing;
Described helical baffles unit has:
Continuous helical section, be positioned at the outside of described helical baffles unit, is the continuous helical curved surface;
Discontinuous spire, be positioned at the inside of described helical baffles unit, comprises a plurality of fan-shaped panels, and a plurality of described fan-shaped panels are discontinuous spiral camber.
2. continuous composite screw deflection plate according to claim 1, is characterized in that, described helical baffles unit also comprises connecting plate, and the straight flange of adjacent described fan-shaped panel connects to form discontinuous spiral camber by described connecting plate.
3. continuous composite screw deflection plate according to claim 2, is characterized in that, described connecting plate is isosceles triangle.
4. continuous composite screw deflection plate according to claim 3, is characterized in that, described fan-shaped panel is 4.
5. a shell-and-tube heat exchanger comprises:
Housing;
Two tube sheets, be arranged at respectively the two ends of described housing;
Heat exchanger tube, be set in parallel in described housing along the axis direction of described housing;
Inlet tube, be arranged on described housing;
Outlet, be arranged on described housing;
Helical baffles, be arranged in described housing, is useful on the through hole that described heat exchanger tube runs through on described helical baffles; And
The deflection plate fixture, be arranged in described housing, to fix described helical baffles; It is characterized in that, described helical baffles is according to the described continuous composite screw deflection plate of arbitrary claim in claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320253819 CN203349686U (en) | 2013-05-10 | 2013-05-10 | Tubular heat exchanger and continuous composite spiral baffle plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320253819 CN203349686U (en) | 2013-05-10 | 2013-05-10 | Tubular heat exchanger and continuous composite spiral baffle plate thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203349686U true CN203349686U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320253819 Expired - Fee Related CN203349686U (en) | 2013-05-10 | 2013-05-10 | Tubular heat exchanger and continuous composite spiral baffle plate thereof |
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| CN (1) | CN203349686U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3159649A1 (en) * | 2015-10-23 | 2017-04-26 | Hamilton Sundstrand Corporation | Heat exchangers |
| US10883765B2 (en) | 2016-10-07 | 2021-01-05 | Hamilton Sunstrand Corporation | Heat exchanger with heilical flights and tubes |
-
2013
- 2013-05-10 CN CN 201320253819 patent/CN203349686U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3159649A1 (en) * | 2015-10-23 | 2017-04-26 | Hamilton Sundstrand Corporation | Heat exchangers |
| US10883765B2 (en) | 2016-10-07 | 2021-01-05 | Hamilton Sunstrand Corporation | Heat exchanger with heilical flights and tubes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20150510 |
|
| EXPY | Termination of patent right or utility model |