CN204555762U - Double tubesheet spiral baffle heat exchanger - Google Patents
Double tubesheet spiral baffle heat exchanger Download PDFInfo
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- CN204555762U CN204555762U CN201520127912.5U CN201520127912U CN204555762U CN 204555762 U CN204555762 U CN 204555762U CN 201520127912 U CN201520127912 U CN 201520127912U CN 204555762 U CN204555762 U CN 204555762U
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- cylindrical shell
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Abstract
A kind of double tubesheet spiral baffle heat exchanger, comprise cylindrical shell, be arranged on the shell-side fluid import on cylindrical shell and outlet, be arranged on the saddle on cylinder body outer wall, internal tube plate, distance sink tube assembly, heat exchanger tube, deflection plate assembly, bobbin carriage end socket, wherein the bobbin carriage end socket of one end is provided with tube side fluid import, the bobbin carriage end socket of the other end is provided with tube side fluid outlet, its technical essential is: weld the pipe nipple coaxially arranged with cylindrical shell outside described internal tube plate respectively, outer tube plate is welded with outside pipe nipple, non-pressure cavity is formed between internal tube plate and outer tube plate, non-pressure cavity is provided with exhaust outlet, bobbin carriage end socket is by flange assembling and outer tube plate, heat exchanger tube runs through internal tube plate and is communicated with by cylindrical shell two ends bobbin carriage end socket with outer tube plate, the deflection plate that the deflection plate that deflection plate assembly comprises some 1/4 circles overlaps in turn.Have shell fluid resistance little, without flowing stagnant area, heat transfer coefficient is large, and tube bundle vibration is little, not easily the feature such as structure.
Description
Technical field
The utility model relates to heat-exchange apparatus field, particularly relate to the heat-exchange apparatus that the arranged in parallel and spaced heat exchange medium of a kind of passage does not directly contact, a kind of double tubesheet spiral baffle heat exchanger specifically, it is larger that it is mainly applicable to shell-side fluid viscosity, or more containing solid particle, and strictly forbid the heat exchanger that the operating mode that tube side mixes with shell side medium uses.
Background technology
The main foundation that the energy is human survival, lives and develop, in progress of human society, play extremely important role, heat transmission equipment has very important status in using energy source always.Shell-and-tube heat exchanger, as a widely used class heat transmission equipment, has strong adaptability, operates the features such as reliable.But along with scientific and technological progress, production process is day by day complicated, the shell-and-tube heat exchanger of traditional structure cannot meet the diabatic process requirement of special operation condition or special media.Therefore, many new type heat exchangers also arise at the historic moment.
The patent of invention being CN100453951C as Authorization Notice No. in prior art discloses " a kind of combined helix baffle plate shell-and-tube heat exchanger ", in same pitch, helical baffles is divided into inside and outside two parts along housing radial direction, adopts discontinuous inside spin form in the central area in enclosure interior space; Adopt the toroidal helical deflection plate of continuous curve surface to form continuous external spiral form in outside, central area, external spiral deflection plate is around inside spin arrangement of baffles.For horizontally-mounted heat exchanger, when the easy incrustation of shell-side medium, adjacent external continuous helical deflecting plate is installed and lap position should be made to be in exchanger base, and the outward flange that housing is close to by every block external spiral deflection plate lap-joint cuts out a breach in lap-joint, but this heat exchanger fluid disturbance is weak, and specific discharge heat transfer rate is low, deflection plate not easily manufactures, shell-side fluid viscosity cannot be applicable to comparatively large, or more containing solid particle, and strictly forbid the operating mode that tube side mixes with shell side medium.
Utility model content
The purpose of this utility model is to provide a kind of double tubesheet spiral baffle heat exchanger, the feature of double tube plate heat exchanger, spiral baffle heat exchanger is combined, and has shell fluid resistance little, without flowing stagnant area, heat transfer coefficient is large, and tube bundle vibration is little, not easily the feature such as structure.Can be comparatively large or containing solid particle in the wherein a kind of dielectric viscosity participating in heat exchange, and use under the special operation condition forbidding two media to mix.
The technical scheme that the utility model adopts is: this double tubesheet spiral baffle heat exchanger comprises cylindrical shell, be arranged on the shell-side fluid import on cylindrical shell and outlet, be arranged on the saddle on cylinder body outer wall, be welded on the internal tube plate at cylindrical shell two ends respectively, be fixed on the distance sink tube assembly on internal tube plate, run through the heat exchanger tube of cylindrical shell, spacing deflection plate assembly on distance sink tube, lay respectively at the bobbin carriage end socket at cylindrical shell two ends, wherein the bobbin carriage end socket of one end is provided with tube side fluid import, the bobbin carriage end socket of the other end is provided with tube side fluid outlet, its technical essential is: weld the pipe nipple coaxially arranged with cylindrical shell outside described internal tube plate respectively, outer tube plate is welded with outside pipe nipple, non-pressure cavity is formed between internal tube plate and outer tube plate, non-pressure cavity is provided with exhaust outlet, bobbin carriage end socket is by flange assembling and outer tube plate, heat exchanger tube runs through internal tube plate and is communicated with by cylindrical shell two ends bobbin carriage end socket with outer tube plate, the deflection plate that the deflection plate that deflection plate assembly comprises some 1/4 circles overlaps in turn.
For improving sealing effectiveness further, between described outer tube plate and bobbin carriage end socket, be provided with non-metallic gasket.
The advantage that the utility model has and positive technique effect are: helical baffles take casing centerline as axis, arrange in continuous helical shape, therefore the flow regime of shell-side fluid is helical form, not only makes streamlined flow along tube bank center line, again around tube bank center line rotational flow.This structure makes fluid there is not stagnant area, has that shell-side fluid pressure drop is little, heat transfer coefficient is high, and heat exchanger tube vibration is little, the not easily plurality of advantages such as dirt deposition, is particularly useful for material viscosity comparatively large, or containing the more operating mode of solid particle.Comparatively large or containing solid particle for viscosity medium is placed in shell side, and another kind of medium is placed in tube side.Use double tube sheet structure to replace single tube plate structure, between heat exchanger homonymy two tube sheet, form the area of isolation that is not born pressure.This area of isolation can avoid pipe, shell-side fluid directly to mix because heat exchanger tube leaks, simultaneously can to isolated area Real-Time Monitoring, and Timeliness coverage leaks, and takes measures, avoids causing larger harm or loss.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is the cross-sectional view of Fig. 1 along A-A line;
Fig. 3 is the syndeton schematic diagram of the utility model deflection plate assembly.
In figure, sequence number illustrates: 1 tube side fluid import, 2 bobbin carriage end sockets, 3 outer tube plates, 4 non-metallic gaskets, 5 exhaust outlets, 6 shell-side fluid imports, 7 distance sink tube assemblies, 8 cylindrical shells, 9 deflection plate assemblies, 10 heat exchanger tubes, 11 internal tube plates, 12 pipe nipples, 13 tube side fluid outlets, 14 shell side fluid outlet, 15 pull bars, 16 saddles.
Detailed description of the invention
Concrete structure of the present utility model is described in detail according to Fig. 1 ~ 3.This double tubesheet spiral baffle heat exchanger comprises cylindrical shell 8, be arranged on shell-side fluid import 6 on cylindrical shell and shell side fluid outlet 14, the saddle 16 be arranged in cylindrical shell 8 bottom outer wall, the internal tube plate 11 being welded on cylindrical shell two ends respectively, the distance sink tube assembly 7 be fixed on internal tube plate 11, the heat exchanger tube 10 running through cylindrical shell, spacing deflection plate assembly 9 on distance sink tube, lay respectively at the bobbin carriage end socket 2 at cylindrical shell two ends, cylindrical shell 8 is closed by internal tube plate 11, forms fluid shell-side flow path.Wherein the bobbin carriage end socket of one end is provided with tube side fluid import 1, and the bobbin carriage end socket of the other end is provided with tube side fluid outlet 13.The pipe nipple 12 coaxially arranged with cylindrical shell is welded respectively outside internal tube plate 11, outer tube plate 3 is welded with outside pipe nipple 12, non-pressure cavity is formed between internal tube plate 11 and outer tube plate 3, non-pressure cavity is provided with some exhaust outlets 5, bobbin carriage end socket 2 is by flange, studs, the assembling of nut (not shown) and outer tube plate 3, sealing surface place between the ring flange of bobbin carriage end socket 2 and outer tube plate 3 arranges non-metallic gasket 4, and heat exchanger tube 10 runs through internal tube plate 11 and is communicated with by cylindrical shell 8 two ends bobbin carriage end socket 2 with outer tube plate 3.The bobbin carriage end socket 2 of both sides, the outer tube plate 3 of both sides, heat exchanger tube 10 form fluid tube side runner.The deflection plate that the deflection plate that deflection plate assembly 9 comprises some 1/4 circles overlaps in turn, angle between the plane of adjacent baffle place is 15 ° ~ 20 °, the distance sink tube assembly 7 that the distance sink tube that deflection plate is not waited by three length is formed is located, and utilize pull bar 15, nut fixes, and makes deflection plate become Spiral distribution in cylindrical shell 8 inside along axis.
Operation principle and operating procedure:
According to the physical property feature of two kinds of fluids of participation heat exchange, the fluid of less for viscosity (or not containing solid particle) is placed in tube side, the fluid of comparatively large for viscosity (or containing solid particle) is placed in shell side.Tube side fluid is by tube side fluid import 1 access arrangement, flow through heat exchanger tube, export 13 by tube side fluid to flow out, shell-side fluid is by shell-side fluid import 6 access arrangement, helical flow is made along equipment center line, flowed out by shell side fluid outlet 14, pipe, shell-side fluid become cross-flow to distribute (also can arrange fluid flow direction according to concrete operating mode).Cold and hot fluid carries out exchange heat by pipe wall of heat exchange pipe, thus meets technological requirement.Even if when a side runner occurs to leak, first the medium leaked out can flow into non-pressure cavity, can not directly mix with opposite side medium, can effectively avoid like this because media of both sides mixing is caused danger or resulted in greater loss.Meanwhile, also leakage monitor can be set in non-pressure cavity, realize the real time on-line monitoring that equipment runs.
Claims (2)
1. a double tubesheet spiral baffle heat exchanger, comprise cylindrical shell, be arranged on the shell-side fluid import on cylindrical shell and outlet, be arranged on the saddle on cylinder body outer wall, be welded on the internal tube plate at cylindrical shell two ends respectively, be fixed on the distance sink tube assembly on internal tube plate, run through the heat exchanger tube of cylindrical shell, spacing deflection plate assembly on distance sink tube, lay respectively at the bobbin carriage end socket at cylindrical shell two ends, wherein the bobbin carriage end socket of one end is provided with tube side fluid import, the bobbin carriage end socket of the other end is provided with tube side fluid outlet, it is characterized in that: outside described internal tube plate, weld the pipe nipple coaxially arranged with cylindrical shell respectively, outer tube plate is welded with outside pipe nipple, non-pressure cavity is formed between internal tube plate and outer tube plate, non-pressure cavity is provided with exhaust outlet, bobbin carriage end socket is by flange assembling and outer tube plate, heat exchanger tube runs through internal tube plate and is communicated with by cylindrical shell two ends bobbin carriage end socket with outer tube plate, the deflection plate that the deflection plate that deflection plate assembly comprises some 1/4 circles overlaps in turn.
2. double tubesheet spiral baffle heat exchanger according to claim 1, is characterized in that: be provided with non-metallic gasket between described outer tube plate and bobbin carriage end socket.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520127912.5U CN204555762U (en) | 2015-03-06 | 2015-03-06 | Double tubesheet spiral baffle heat exchanger |
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CN201520127912.5U CN204555762U (en) | 2015-03-06 | 2015-03-06 | Double tubesheet spiral baffle heat exchanger |
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CN204555762U true CN204555762U (en) | 2015-08-12 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110057214A (en) * | 2019-05-24 | 2019-07-26 | 台州市特种设备监督检验中心 | A kind of heat-exchanger rig |
CN117287872A (en) * | 2023-11-24 | 2023-12-26 | 安徽普泛能源技术有限公司 | Composite condensation evaporator and application thereof |
-
2015
- 2015-03-06 CN CN201520127912.5U patent/CN204555762U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110057214A (en) * | 2019-05-24 | 2019-07-26 | 台州市特种设备监督检验中心 | A kind of heat-exchanger rig |
CN117287872A (en) * | 2023-11-24 | 2023-12-26 | 安徽普泛能源技术有限公司 | Composite condensation evaporator and application thereof |
CN117287872B (en) * | 2023-11-24 | 2024-02-23 | 安徽普泛能源技术有限公司 | Composite condensation evaporator and application thereof |
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