CN203443416U - Shell and tube heat exchanger - Google Patents
Shell and tube heat exchanger Download PDFInfo
- Publication number
- CN203443416U CN203443416U CN201320310746.3U CN201320310746U CN203443416U CN 203443416 U CN203443416 U CN 203443416U CN 201320310746 U CN201320310746 U CN 201320310746U CN 203443416 U CN203443416 U CN 203443416U
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- shell
- heat exchanger
- orifice plate
- baffle
- heat
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Abstract
The utility model belongs to the technical field of heat exchangers, in particular relates to a shell and tube type heat exchanger. The heat exchanger uses a combination of hole plates and baffle grates to replace the existing baffle grates, through holes on the hole plates and baffle rods on the baffle grates are used to control the flowing of a shell pass fluid, wherein the shell pass fluid is divided into a plurality of branched fluid by the hole plates, and the fluid longitudinally flows through the tube bundles and forms jet flows, the flow resistance is small, the fluid-induction vibration is prevented, and simultaneously the jet flow generates perturbation flow on the baffle rods, so that the shell pass fluid performs the complete turbulent motion, the heat transfer effect is reinforced, and the heat exchange efficiency of the heat exchanger is improved. Moreover, when the shell pass fluid passes through the baffle rods, disturbed flow is generated behind the baffle rods, namely Karman vortex flow is generated, so as to effectively prevent the dirt from being adhered on the pipe bundles and furthermore effectively solve the problem of dirt deposition.
Description
Technical field
The utility model relates to technical field of heat exchangers, particularly a kind of shell-and-tube heat exchanger.
Background technology
Traditional shell-and-tube exchanger is generally segmental baffle formula structure, at housing, some segmental baffles are set, segmental baffle can support tube bank on the one hand, segmental baffle makes shell-side fluid repeatedly commutate and vertically wash away heat-exchanging tube bundle in housing on the other hand, to increase flow velocity and the turbulence of fluid, improve the heat-transfer effect of shell side.
Yet, this segmental baffle board heat exchangers is just because of shell-side fluid is vertically washed away heat-exchanging tube bundle, and constantly change and flow to, caused it to there is following fatal shortcoming: (1) exists flow dead and leakage current dead band in the side of housing, made effective heat transfer area reduce 25 to 30 percent; (2) transversal flow (being that flow direction is vertical with tube bank) heat-exchanging tube bundle can induce heat exchanger tube to produce vibration, and this induced vibration is the main cause that causes that heat exchanger tube breaks and tube sheet leaks, and has greatly shortened the life-span of whole heat exchanger; (3) deflection plate resistance is large, and if reduce deflection plate to reduce resistance, can cause Inherent Frequency of Tubes in Heat exchangers low, vibrationproof ability, energy saving also reduces greatly; (4) dirt in fluid is easily deposited on tube bank surface, causes K value to decline, heat-transfer effect variation.
To this, industry has proposed new shell-and-tube exchanger structure, if the patent No. is the patent document of CN 1760624A, this patent document discloses a kind of shell type heat exchanger configured from composite tubes of figured pattern card, adopt card to substitute deflection plate, make shell-side fluid become longitudinal flow (being that flow direction is parallel with tube bank) from lateral flow (being that flow direction is vertical with tube bank), thereby make up above defect.But the card of this heat exchanger cannot produce perturbation stream, the turbulence that causes shell-side fluid to produce is not enough, not only for the surperficial dirt deposition problem of tube bank, is difficult to effective solution, and heat-transfer effect is not good enough, heat transfer coefficient is low, and heat exchanger heat transfer effect is bad, and heat exchange efficiency is low.
Therefore, for solving weak point of the prior art, provide the little while of a kind of flow resistance can make the abundant turbulence of shell-side fluid, thereby heat-transfer effect is good, it is particularly necessary that the heat exchanger that heat exchange efficiency is high seems.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and provides the little while of a kind of flow resistance can make the abundant turbulence of shell-side fluid, thereby heat-transfer effect is good, the shell-and-tube heat exchanger that heat exchange efficiency is high.
The purpose of this utility model is achieved through the following technical solutions:
A kind of shell-and-tube heat exchanger is provided, comprise housing, be arranged at the heat-exchanging tube bundle in described housing, be arranged at the capping at described housing two ends, the tube side being arranged in described capping is imported and exported, the shell side being arranged on housing is imported and exported, in described housing, be also provided with along orifice plate and the deflecting fence of the axially staggered setting spaced apart of heat-exchanging tube bundle, the outer of described orifice plate and deflecting fence is all connected to described inner walls, on described orifice plate, be provided with the through hole that the body for heat-exchanging tube bundle wears, described deflecting fence comprises baffling circle and is fixed on the rod baffle on baffling circle, rod baffle on same deflecting fence be arranged in parallel, rod baffle on adjacent deflecting fence is and is crisscross arranged.
The external diameter of wherein said orifice plate and the external diameter of deflecting fence are equal to the internal diameter of described housing.
Wherein, described orifice plate all arranges with described heat-exchanging tube bundle is vertical with deflecting fence.
Wherein, the through hole on described orifice plate is plum blossom-shaped through hole.
Wherein, a body in the corresponding heat-exchanging tube bundle of each plum blossom-shaped through hole on described orifice plate, the central shaft of arbitrary plum blossom-shaped through hole is with overlapping with the central shaft of body corresponding to this plum blossom-shaped through hole.
Wherein, the cross section of described rod baffle is ellipse or rhombus.
Wherein, the rod baffle of adjacent deflecting fence vertical setting mutually.
The beneficial effects of the utility model: the utility model provides a kind of shell-and-tube heat exchanger, be used in combination orifice plate and deflecting fence and substitute existing deflection plate, utilize through hole and the rod baffle on deflecting fence on orifice plate to control flowing of shell-side fluid, its aperture plate becomes a plurality of fluids by shell-side fluid from a fluid streams, fluid longitudinal stream is crossed tube bank, and formation jet, flow resistance is little, prevented flow-induced vibration, jet can produce perturbation stream in rod baffle simultaneously, thereby make the abundant turbulence of shell-side fluid, strengthened heat-transfer effect, improved the heat exchange power of heat exchanger.In addition, can there is flow-disturbing during by rod baffle in shell-side fluid, produced Kaman's eddy current after rod baffle, and it is upper that this eddy current has prevented that dirt is attached to tube bank effectively, thereby efficiently solve dirt deposition problem.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the structural representation of the embodiment of a kind of shell-and-tube heat exchanger of the utility model.
Fig. 2 is the structural representation of orifice plate of the embodiment of a kind of shell-and-tube heat exchanger of the utility model.
Fig. 3 is the structural representation of deflecting fence of the embodiment of a kind of shell-and-tube heat exchanger of the utility model.
In Fig. 1 to Fig. 3, include:
1---housing, 2---heat-exchanging tube bundle, 21---body, 3---capping, 4---tube side import and export, 5---shell side import and export, 6---orifice plate, 61---plum blossom-shaped through hole, 7---deflecting fence, 71---baffling circle, 72---rod baffle.
The specific embodiment
With the following Examples the utility model is further described.
The specific embodiment of a kind of shell-and-tube heat exchanger of the utility model, as shown in Figure 1 to Figure 3, comprise: housing 1, be arranged at the heat-exchanging tube bundle 2 in described housing 1, be arranged at the capping 3 at described housing 1 two ends, the tube side being arranged in described capping 3 imports and exports 4, the shell side being arranged on housing 1 imports and exports 5, in described housing 1, be also provided with the orifice plate 6 staggered with heat-exchanging tube bundle 2 and deflecting fence 7, housing 1 inwall described in described orifice plate 6 and deflecting fence 7 outer butts, on described orifice plate 6, be provided with through hole, the body 21 of described heat-exchanging tube bundle 2 is arranged in described through hole, described deflecting fence 7 comprises baffling circle 71 and is fixed on the rod baffle 72 on baffling circle 71, rod baffle 72 on same deflecting fence 7 be arranged in parallel, rod baffle 72 on adjacent deflecting fence 7 is crisscross arranged.
The combination of this heat exchanger substitutes existing deflection plate with orifice plate 6 and deflecting fence 7, utilizes through hole and the rod baffle 72 on deflecting fence 7 on orifice plate 6 to control flowing of shell-side fluid, and compared with prior art, this heat exchanger has following advantage:
(1) orifice plate 6 becomes a plurality of fluids by shell-side fluid from a fluid streams, fluid longitudinal stream is crossed tube bank, and formation jet, flow resistance is little, prevented flow-induced vibration, jet can produce perturbation stream in rod baffle 72 simultaneously, thereby makes the abundant turbulence of shell-side fluid, strengthen heat-transfer effect, improved the heat exchange power of heat exchanger;
(2) orifice plate 6 alternately constantly changes flow direction and the flowing velocity of fluid with deflecting fence 7, produces mixed flow, greatly reduces flow dead and leakage current dead band, improves effective heat transfer area;
(3) orifice plate 6 coordinates uniform flow field is changed into inhomogeneous flow field with deflecting fence 7, makes internal fluid that heat exchange also occur, and improves heat exchanger effectiveness;
(4) orifice plate 6 coordinates and has eliminated flow dead with deflecting fence 7, when shell-side fluid is by rod baffle 72 simultaneously, can there is flow-disturbing below in rod baffle 72, produced Kaman's eddy current, this eddy current has prevented that dirt is attached in tube bank effectively, thereby dirt deposition and corrosion have been reduced, efficiently solve dirt deposition problem, can reduce the workload of cleaning, extend the cleaning frequency;
(5) compare with traditional baffle plate type heat exchanger, processing is simple, compact conformation, under equal conditions, heat transfer coefficient improves 20～40%, and effectively heat transfer area increases by 30%, can fully carry out heat exchange, reduce thermal loss, flow resistance reduces 20～30%, can effectively reduce the power consumption of pump.
The external diameter of the external diameter of described orifice plate 6 and deflecting fence 7 is equal to the internal diameter of described housing 1, thereby by the setting vertical with housing 1 of orifice plate 6 and deflecting fence 7, both convenient setting, also can strengthen flow-disturbing effect simultaneously, improved heat exchange efficiency.Certainly can suitably adjust the external diameter of orifice plate 6 and deflecting fence 7 according to actual needs, simultaneously the angle of the adjustment orifice plate 6 of applicability and deflecting fence 7 and housing 1.
Described orifice plate 6 and deflecting fence 7 and the vertical setting of described heat-exchanging tube bundle 2, thus guarantee that the fixed structure of heat-exchanging tube bundle 2 is more firm, also can reduce the suffered resistance of shell-side fluid.
Through hole on described orifice plate 6 is plum blossom-shaped through hole 61, a body 21 in the corresponding heat-exchanging tube bundle 2 of each plum blossom-shaped through hole 61 on described orifice plate 6, and the central shaft of arbitrary plum blossom-shaped through hole 61 is with overlapping with the central shaft of body 21 corresponding to this plum blossom-shaped through hole 61.Each plum blossom hole both can clamp a body 21, was also reserved with the hole that is enough to meet shell-side fluid flow velocity demand simultaneously, reduced the flow resistance of shell-side fluid.Certainly, this through hole can also be set to the through hole of other types, as profiled holes, and rectangular opening etc., but test effect shows that plum blossom-shaped through hole 61 effects are better.
Described rod baffle 72 be oval cross section bar or diamond-shaped cross-section bar.Not only anti seismic efficiency is good to adopt oval cross section bar or diamond-shaped cross-section bar, is more prone to install than circular cross-section bar simultaneously.
The rod baffle 72 of adjacent deflecting fence 7 is vertical setting mutually, thereby effectively improve flow-disturbing, tells on, and improves heat exchange efficiency.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.
Claims (7)
1. a shell-and-tube heat exchanger, comprise housing, be arranged at the heat-exchanging tube bundle in described housing, be arranged at the capping at described housing two ends, the tube side being arranged in described capping is imported and exported, the shell side being arranged on housing is imported and exported, it is characterized in that: in described housing, be also provided with along orifice plate and the deflecting fence of the axially staggered setting spaced apart of heat-exchanging tube bundle, the outer of described orifice plate and deflecting fence is all connected to described inner walls, on described orifice plate, be provided with the through hole that the body for heat-exchanging tube bundle wears, described deflecting fence comprises baffling circle and is fixed on the rod baffle on baffling circle, rod baffle on same deflecting fence is set in parallel, rod baffle on adjacent deflecting fence is and is crisscross arranged.
2. a kind of shell-and-tube heat exchanger as claimed in claim 1, is characterized in that: the external diameter of described orifice plate and the external diameter of deflecting fence are equal to the internal diameter of described housing.
3. a kind of shell-and-tube heat exchanger as claimed in claim 1, is characterized in that: described orifice plate all arranges with described heat-exchanging tube bundle is vertical with deflecting fence.
4. a kind of shell-and-tube heat exchanger as claimed in claim 1, is characterized in that: the through hole on described orifice plate is plum blossom-shaped through hole.
5. a kind of shell-and-tube heat exchanger as claimed in claim 4, it is characterized in that: each the plum blossom-shaped through hole on described orifice plate is a body in corresponding heat-exchanging tube bundle respectively, the central shaft of arbitrary plum blossom-shaped through hole is with overlapping with the central shaft of body corresponding to this plum blossom-shaped through hole.
6. a kind of shell-and-tube heat exchanger as claimed in claim 1, is characterized in that: the cross section of described rod baffle is ellipse or rhombus.
7. a kind of shell-and-tube heat exchanger as claimed in claim 1, is characterized in that: the rod baffle of adjacent deflecting fence is vertical setting mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320310746.3U CN203443416U (en) | 2013-05-31 | 2013-05-31 | Shell and tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320310746.3U CN203443416U (en) | 2013-05-31 | 2013-05-31 | Shell and tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203443416U true CN203443416U (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320310746.3U Expired - Fee Related CN203443416U (en) | 2013-05-31 | 2013-05-31 | Shell and tube heat exchanger |
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| CN (1) | CN203443416U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034188A (en) * | 2014-05-19 | 2014-09-10 | 陈勤 | Heat exchanger and heat exchange enhancement method |
| CN104713405A (en) * | 2015-03-04 | 2015-06-17 | 东南大学 | Regular-triangular-arrayed vortex array heat-transfer device |
| CN105865233A (en) * | 2016-05-31 | 2016-08-17 | 中冶焦耐工程技术有限公司 | Combined heat radiation element of converging-diverging tubes and petal-shaped pore plates |
| CN106197120A (en) * | 2016-08-29 | 2016-12-07 | 中冶焦耐(大连)工程技术有限公司 | A kind of petal heat exchanger tube and full-circle spray pattern orifice plate combination type heat exchange element |
| CN106643227A (en) * | 2016-11-24 | 2017-05-10 | 西安交通大学 | Mixed baffling stream type reboiler |
| CN107726895A (en) * | 2017-10-30 | 2018-02-23 | 佛山科学技术学院 | The shell-and-tube heat exchanger of special-shaped pore full-circle spray pattern supporting plate substitution segmental baffle |
| CN107747881A (en) * | 2017-10-30 | 2018-03-02 | 佛山科学技术学院 | The shell-and-tube heat exchanger of square pore full-circle spray pattern supporting plate substitution segmental baffle |
| CN109737775A (en) * | 2019-03-06 | 2019-05-10 | 东莞市康源节能科技有限公司 | A kind of new and effective easy-cleaning sullage heat exchanger |
| CN109908731A (en) * | 2019-04-01 | 2019-06-21 | 吉首大学 | Fume desulfurizing tower based on Karman vortex street |
| CN110926259A (en) * | 2019-11-11 | 2020-03-27 | 上海电气电站设备有限公司 | Baffle plate and longitudinal flow grid frame combined photo-thermal heat exchanger tube bundle supporting structure |
| CN113405382A (en) * | 2021-06-25 | 2021-09-17 | 广州市壹套节能设备有限责任公司 | Shell and tube heat exchanger |
| EP3805686A4 (en) * | 2018-05-25 | 2022-03-02 | China Nuclear Power Design Company Ltd. (Shenzhen) | Support plate for u-shaped heat transfer tube of steam generator of nuclear power plant and steam generator thereof |
| CN109737775B (en) * | 2019-03-06 | 2024-04-12 | 山东恒辉节能技术集团有限公司 | Efficient and easy-to-clean sewage heat exchanger |
-
2013
- 2013-05-31 CN CN201320310746.3U patent/CN203443416U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034188B (en) * | 2014-05-19 | 2016-08-24 | 陈勤 | Heat exchanger and strengthened heat exchange method |
| CN104034188A (en) * | 2014-05-19 | 2014-09-10 | 陈勤 | Heat exchanger and heat exchange enhancement method |
| CN104713405A (en) * | 2015-03-04 | 2015-06-17 | 东南大学 | Regular-triangular-arrayed vortex array heat-transfer device |
| CN104713405B (en) * | 2015-03-04 | 2016-08-17 | 东南大学 | A kind of equilateral triangle arrangement to whirlpool row array row heat-exchanger rig |
| CN105865233A (en) * | 2016-05-31 | 2016-08-17 | 中冶焦耐工程技术有限公司 | Combined heat radiation element of converging-diverging tubes and petal-shaped pore plates |
| CN105865233B (en) * | 2016-05-31 | 2017-09-08 | 中冶焦耐工程技术有限公司 | A kind of tapered increaser and petal orifice plate combined type heat exchange element |
| CN106197120A (en) * | 2016-08-29 | 2016-12-07 | 中冶焦耐(大连)工程技术有限公司 | A kind of petal heat exchanger tube and full-circle spray pattern orifice plate combination type heat exchange element |
| CN106643227B (en) * | 2016-11-24 | 2018-12-07 | 西安交通大学 | A kind of mixing deflector type reboiler |
| CN106643227A (en) * | 2016-11-24 | 2017-05-10 | 西安交通大学 | Mixed baffling stream type reboiler |
| CN107726895A (en) * | 2017-10-30 | 2018-02-23 | 佛山科学技术学院 | The shell-and-tube heat exchanger of special-shaped pore full-circle spray pattern supporting plate substitution segmental baffle |
| CN107747881A (en) * | 2017-10-30 | 2018-03-02 | 佛山科学技术学院 | The shell-and-tube heat exchanger of square pore full-circle spray pattern supporting plate substitution segmental baffle |
| EP3805686A4 (en) * | 2018-05-25 | 2022-03-02 | China Nuclear Power Design Company Ltd. (Shenzhen) | Support plate for u-shaped heat transfer tube of steam generator of nuclear power plant and steam generator thereof |
| CN109737775A (en) * | 2019-03-06 | 2019-05-10 | 东莞市康源节能科技有限公司 | A kind of new and effective easy-cleaning sullage heat exchanger |
| CN109737775B (en) * | 2019-03-06 | 2024-04-12 | 山东恒辉节能技术集团有限公司 | Efficient and easy-to-clean sewage heat exchanger |
| CN109908731A (en) * | 2019-04-01 | 2019-06-21 | 吉首大学 | Fume desulfurizing tower based on Karman vortex street |
| CN110926259A (en) * | 2019-11-11 | 2020-03-27 | 上海电气电站设备有限公司 | Baffle plate and longitudinal flow grid frame combined photo-thermal heat exchanger tube bundle supporting structure |
| CN113405382A (en) * | 2021-06-25 | 2021-09-17 | 广州市壹套节能设备有限责任公司 | Shell and tube heat exchanger |
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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: 20140219 Termination date: 20170531 |
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| CF01 | Termination of patent right due to non-payment of annual fee |