CN100535570C - Pipe type heat exchanger with heat exchange shell intensified by ultrasonic wave - Google Patents
Pipe type heat exchanger with heat exchange shell intensified by ultrasonic wave Download PDFInfo
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- CN100535570C CN100535570C CNB2007101732628A CN200710173262A CN100535570C CN 100535570 C CN100535570 C CN 100535570C CN B2007101732628 A CNB2007101732628 A CN B2007101732628A CN 200710173262 A CN200710173262 A CN 200710173262A CN 100535570 C CN100535570 C CN 100535570C
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Abstract
An ultrasonic heat transfer enhancing tube shell heat exchanger is provided, which belongs to the technology field of energy-saving of heat exchanger of industry. The heat exchanger comprises a shell, a heat exchanger tube, a tube side inlet, a tube side outlet, a shell side inlet, a shell side outlet, a first tube plate, a second tube plate, a clapboard, a baffle and a power ultrasonic transducer. The power ultrasonic transducer inserts from the central circular hole of the left end surface of the shell, passes through a circular casing and the central circular hole of a first tube plate in sequence, penetrates a circular hole support and is sealed in the shell side space of the heat exchanger by a sealing cover plate. The ultrasonic wave is projected radially along the power ultrasonic transducer, intensifies liquid oscillation adopting ''cavitation effect'' produced by the ultrasonic wave when spreading in the liquid, reduces liquid motion viscosity coefficient, enhances the heat exchange efficiency of the heat exchanger tube under the condition of low flow velocity of liquid, greatly reduces energy consumption of power plant and has obvious energy-saving effect. In addition, the ''cavitation effect'' of the ultrasonic wave can prevent the surface of the heat exchanger tube from scale formation and has strong adaptability and operability.
Description
Technical field
What the present invention relates to is a kind of shell and tube exchanger, and particularly a kind of pipe type heat exchanger with heat exchange shell intensified by ultrasonic wave belongs to the industrial heat exchange field of energy-saving technology.
Background technology
Shell and tube exchanger is that industrial circle is used heat transmission equipment more widely, and especially at high temperature, high pressure, special occasions such as poisonous, shell and tube exchanger will have applicability preferably, but also there is the low problem of heat transfer efficiency in the shell and tube exchanger that uses at present.In order to improve the heat exchange efficiency of shell and tube exchanger, people strengthen the shell and tube exchanger intraductal heat transfer and have carried out many researchs, present augmentation of heat transfer means mainly contain two kinds: (1) changes the heat exchanger tube shape or transforms the heat exchanger tube surface nature, as adopting screwed pipe, porous surface tube etc.; (2) form of change shell side plate washer and heat exchange tube supporting plate to reduce the delay dead band that shell side flows, is fully used heat transfer area.Find through literature search prior art, Chinese patent (application) number is 200510012628, name is called the shell and tube heat exchanger with plane vortex heat transfer tube bundle patent of invention, a kind of efficient shell-tube type heat transmission equipment is disclosed, the distinguishing feature of this equipment is that heat-transfer pipe is a plane vortex type pipe, collector tube runs through the centre bore of all plane vortex type pipes, plane vortex type pipe communicates with collector tube, the plate middle part of back fluid ring flange is provided with all presses the chamber, all press indoor several cold-producing mediums that are provided with to pass through the hole, the external port of plane vortex type pipe is connected by the hole with cold-producing medium, this invention can make liquid produce centrifugal force in the flow process in pipe, absolute limitations liquid film thicken, effectively improved the coefficient of heat transfer of heat exchanger.Chinese patent (application) number is 200610122089, name is called Vertical multiple-spiral blended flow shell-and-tube heat exchanger and intensified heat transfer method patent of invention thereof, a kind of Vertical multiple-spiral blended flow shell-and-tube heat exchanger is disclosed, this heat exchanger comprises heat exchanger tube tube bank, housing, heat exchanger tube, helical ribbon, tube sheet places two ends in the housing, the heat exchanger tube tube bank is fixedlyed connected with tube sheet, uniform each the heat exchanger tube outer wall that is arranged on of helical ribbon, and helical ribbon is that the perforate helical ribbon equidistantly has some apertures vertically.This invention produces the synergy of longitudinal spiral stream and jet to fluid between pipe by the perforate helical ribbon, make fluid between tube gap, remain multiply vertically from the spiral blended flow state, effectively improve the fluid velocity of heat-exchanging tube bundle wall, realize the abundant mixing of different housings radius fluid, thereby improve the heat transfer coefficient of shell side.Though these technology can effectively be improved the heat exchange efficiency of shell and tube exchanger, also increased the flow resistance of fluid simultaneously greatly, the energy consumption of power-equipment (pump) is increased considerably.
Summary of the invention
The objective of the invention is to improvements over the prior art, a kind of shell and tube exchanger that utilizes ultrasonic wave to carry out enhanced heat exchange is provided.When ultrasonic wave was propagated in liquid, " cavitation effect " of generation aggravated the vibration of liquid, increased the turbulence level of heat exchanger tube surface liquid on the one hand, improved the coefficient of heat transfer between the inside and outside fluid of heat exchanger tube; On the other hand, can reduce flow rate of liquid significantly, reduce the flow resistance of liquid by heat exchanger; Secondly, hyperacoustic " cavitation effect " also can reduce the kinematic viscosity coefficient of liquid, also reduced the flow resistance of liquid to a certain extent.Therefore, ultrasonic wave can reduce the energy consumption of power-equipment significantly in the heat exchange of enhanced heat exchange equipment.The intensified by ultrasonic wave heat exchange also can prevent the heat exchanger tube surface scale, has saved heat exchanger maintenance works such as regularly scale removal cleaning.
The present invention is achieved by the following technical solutions, the present invention includes shell, heat exchanger tube, tube side inlet tube, the tube side outlet, shell side inlet tube, shell side outlet, first tube sheet, second tube sheet, dividing plate, baffle plate, power ultrasonic wave transducer, power ultrasonic wave-generator, seal cover board, circular sleeve, circular hole bearing, wherein, the power ultrasonic wave transducer comprises the ultrasonic vibration wafer, ultrasonic sealing radiation sleeve pipe, fastening rod, anodal scale copper, negative pole scale copper, cathode conductor, positive wire.Shell is the closed circular tubular housing of a horizontal positioned, and tube side inlet tube and tube side outlet lay respectively at the upper and lower of shell right side; Center, shell left side has a circular hole, and the circular hole size equals being full of of power ultrasonic wave transducer overall diameter and closes size, and shell side inlet tube and shell side outlet place the upper right side and the lower left of shell respectively.First tube sheet and second tube sheet are circular, have several and heat exchanger tube overall diameter on it and be full of the circular hole that closes consistent size, the first tube sheet center has a circular hole, second tube sheet left surface center welding circular hole bearing, first tube sheet is between shell left side and shell side inlet tube, its periphery does not have seam welding with the inner surface of shell, and surround a mixing fluid channel with the shell left side, the two ends of circular sleeve do not have seam welding with the periphery of the shell left side center hole and the first tube sheet center hole respectively, the first tube sheet center hole diameter, the circular hole internal diameter of circular hole bearing and circular sleeve internal diameter all are full of with power ultrasonic wave transducer external diameter and close consistent size, second tube sheet is between shell right side and shell side outlet, its periphery does not have seam welding with the inner surface of shell, the dividing plate level places the center between second tube sheet and the shell right side, its periphery respectively with second tube sheet, the inner surface of shell right side and shell does not have seam welding, surround equal size on, following two passages, upper channel communicates with the tube side inlet tube, lower channel communicates with the tube side outlet, the two ends of heat exchanger tube respectively with first tube sheet and second tube sheet on corresponding circular hole do not have seam welding, form parallel tube passage, two semicircle baffle plates that have some apertures lay respectively at shell side inlet tube right side and shell side outlet left side, for heat exchanger tube provides a supporting role.The power ultrasonic wave transducer is cylindrical, ultrasonic vibration wafer wherein, ultrasonic sealing radiation sleeve pipe, anodal scale copper and negative pole scale copper are the long tube shape, ultrasonic sealing radiation sleeve pipe is sealed at both ends, ultrasonic vibration wafer, anodal scale copper, negative pole scale copper and fastening rod have identical length, and they all are sealed in the ultrasonic sealing radiation sleeve pipe, and form enclosure space with ultrasonic sealing radiation sleeve pipe two ends.The outer ring surface of ultrasonic vibration wafer is the negative pole face, inner ring surface is positive pole-face, the inner ring surface of fastening rod and ultrasonic vibration wafer closely is full of and closes, the anodal scale copper of sandwich, the inner ring surface of the outer ring surface of ultrasonic vibration wafer and ultrasonic sealing radiation sleeve pipe closely is full of and closes sandwich negative pole scale copper.
The power ultrasonic wave transducer inserts from shell left side center hole, successively by the circular sleeve and the first tube sheet center hole, after stretching into the endoporus of circular hole bearing, by the capping plate it is sealed in the shell side space of heat exchanger, the anodal scale copper of power ultrasonic wave transducer is connected with the positive and negative electrode of power ultrasonic wave-generator with cathode conductor by positive wire respectively with the negative pole scale copper.
During heat exchanger work, a kind of heat exchanging fluid enters from the shell side inlet tube, behind stream heat exchanger shell pass space, flow out from the shell side outlet, another kind of heat exchanging fluid then enters from the tube side inlet tube, flow through successively and flow out from the tube side outlet behind the upper half-space heat exchanger tube of heat exchanger and the lower half-space heat exchanger tube, simultaneously, power ultrasonic wave-generator is opened, ultrasonic wave is along the radial emission of power ultrasonic wave transducer, make the liquid thermal agitation in the heat exchanger shell pass and produce cavitation bubble, strengthen the heat exchange effect of heat exchanger.
Beneficial effect of the present invention: the vibration of " cavitation effect " aggravation liquid that produces when intensified by ultrasonic wave heat-transfer pipe shell heat exchanger of the present invention utilizes ultrasonic wave to propagate in liquid, reduce the kinematic viscosity coefficient of liquid, can under the low flow condition of liquid, strengthen the heat exchange effect of heat exchanger tube, can reduce the energy consumption of power-equipment significantly, has obvious energy-saving effect, hyperacoustic " cavitation effect " can also prevent the heat exchanger heat-exchanging tube surface scale simultaneously, has very strong adaptability and operability.
Description of drawings
Fig. 1 is an intensified by ultrasonic wave heat exchanger tube shell heat exchanger structural representation of the present invention.
Fig. 2 is a ultrasonic transducer structural representation of the present invention.
Fig. 3 is the present invention's A-A cutaway view shown in Figure 1.
Fig. 4 is the present invention's B-B cutaway view shown in Figure 3.
Fig. 5 is the present invention's C-C cutaway view shown in Figure 3.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the present embodiment invention comprises shell 1, heat exchanger tube 2, tube side inlet tube 3, tube side outlet 4, shell side inlet tube 5, shell side outlet 6, the first tube sheets 7, the second tube sheets 8, dividing plate 9, baffle plate 10, power ultrasonic wave transducer 11, power ultrasonic wave-generator 12, seal cover board 13, circular sleeve 14, circular hole bearing 15, wherein, power ultrasonic wave transducer 11 comprises ultrasonic vibration wafer 16, ultrasonic sealing radiation sleeve pipe 17, fastening excellent 18, anodal scale copper 19, negative pole scale copper 20, cathode conductor 21, positive wire 22.Shell 1 is the closed circular tubular housing of a horizontal positioned, and tube side inlet tube 3 and tube side outlet 4 lay respectively at the upper and lower of shell 1 right side; Center, shell 1 left side has a circular hole, and the circular hole size equals being full of of power ultrasonic wave transducer 11 overall diameters and closes size, and shell side inlet tube 5 and shell side outlet 6 place the upper right side and the lower left of shell 1 respectively.First tube sheet 7 and second tube sheet 8 are circular, have several and heat exchanger tube 2 overall diameters on it and be full of the circular hole that closes consistent size, first tube sheet, 7 centers have a circular hole, circular hole bearing 15 of second tube sheet, 8 left surface centers welding, first tube sheet 7 is between shell 1 left side and shell side inlet tube 5, its periphery does not have seam welding with the inner surface of shell 1, and surround a mixing fluid channel with shell 1 left side, the two ends of circular sleeve 14 do not have seam welding with the periphery of shell 1 left side center hole and first tube sheet, 7 center holes respectively, first tube sheet, 7 center hole diameters, the circular hole internal diameter of circular hole bearing 15 and circular sleeve 14 internal diameters all are full of with power ultrasonic wave transducer 11 external diameters and close consistent size, second tube sheet 8 is between shell 1 right side and shell side outlet 6, its periphery does not have seam welding with the inner surface of shell 1, dividing plate 9 levels place the center between second tube sheet 8 and shell 1 right side, its periphery respectively with second tube sheet 8, the inner surface of shell 1 right side and shell 1 does not have seam welding, surround equal size on, following two passages, upper channel communicates with tube side inlet tube 3, lower channel communicates with tube side outlet 4, heat exchanger tube 2 two ends respectively with first tube sheet 7 and second tube sheet 8 on corresponding circular hole do not have seam welding, form parallel tube passage, on, following two semicircle baffle plates 10 lay respectively at shell side inlet tube 5 right sides and shell side outlet 6 left sides, for heat exchanger tube 2 provides a supporting role.Power ultrasonic wave transducer 11 is cylindrical, wherein the ultrasonic vibration wafer 16, ultrasonic sealing radiation sleeve pipe 17, anodal scale copper 19 and negative pole scale copper 20 are the long tube shape, ultrasonic sealing radiation sleeve pipe 17 is sealed at both ends, ultrasonic vibration wafer 16, anodal scale copper 19, negative pole scale copper 20 have identical length with fastening excellent 18, and they all are sealed in the ultrasonic sealing radiation sleeve pipe 17, and form enclosure space with ultrasonic sealing radiation sleeve pipe 17 two ends.The outer ring surface of ultrasonic vibration wafer 16 is the negative pole face, inner ring surface is positive pole-face, fastening excellent 18 closely are full of with the inner ring surface of ultrasonic vibration wafer 16 and close, the anodal scale copper 19 of sandwich, the inner ring surface of the outer ring surface of ultrasonic vibration wafer 16 and ultrasonic sealing radiation sleeve pipe 17 closely is full of and closes, sandwich negative pole scale copper 20, the thickness of anodal scale copper 19 and negative pole scale copper 20 is 1-2mm.
Power ultrasonic wave transducer 11 inserts from shell 1 left side center hole, successively by circular sleeve 14 and first tube sheet, 7 center holes, stretch into the endoporus of circular hole bearing 15, seal cover board 13 is affixed by bolt and shell 1 left side, power ultrasonic wave transducer 11 is sealed in the shell side space of heat exchanger, anodal scale copper 19 is connected with the positive and negative electrode of cathode conductor 21 with power ultrasonic wave-generator 12 by positive wire 22 respectively with negative pole scale copper 20.
During heat exchanger work, a kind of heat exchanging fluid enters from shell side inlet tube 5, behind stream heat exchanger shell pass space, flow out from shell side outlet 6, another kind of heat exchanging fluid then enters from tube side inlet tube 3, flow through successively and flow out from tube side outlet 4 behind the upper half-space heat exchanger tube of heat exchanger and the lower half-space heat exchanger tube, simultaneously, power ultrasonic wave-generator 12 is opened, ultrasonic wave is along the radial emission of power ultrasonic wave transducer 11, make the liquid thermal agitation in the heat exchanger shell pass and produce cavitation bubble, strengthen the heat exchange effect of heat exchanger.
Claims (3)
1. intensified by ultrasonic wave heat exchanger tube shell heat exchanger, comprise: shell (1), heat exchanger tube (2), tube side inlet tube (3), tube side outlet (4), shell side inlet tube (5), shell side outlet (6), first tube sheet (7), second tube sheet (8), dividing plate (9), baffle plate (10), power ultrasonic wave transducer (11), power ultrasonic wave-generator (12), seal cover board (13), circular sleeve (14), circular hole bearing (15), it is characterized in that: power ultrasonic wave transducer (11) comprises ultrasonic vibration wafer (16), ultrasonic sealing radiation sleeve pipe (17), fastening rod (18), anodal scale copper (19), negative pole scale copper (20), cathode conductor (21), positive wire (22), shell (1) is the closed circular tubular housing of a horizontal positioned, tube side inlet tube (3) and tube side outlet (4) lay respectively at the upper and lower of shell (1) right side, shell (1) center, left side has a circular hole, the circular hole size equals being full of of power ultrasonic wave transducer (11) overall diameter and closes size, shell side inlet tube (5) and shell side outlet (6) place the upper right side and the lower left of shell (1) respectively, first tube sheet (7) and second tube sheet (8) are circular, have several and heat exchanger tube (2) overall diameter on it and be full of the small sircle hole that closes consistent size, first tube sheet (7) is positioned between shell (1) left side and the shell side inlet tube (5), its center has circular hole, periphery does not have seam welding with the inner surface of shell (1), the two ends of circular sleeve (14) do not have seam welding with the periphery of shell (1) left side center hole and first tube sheet (7) center hole respectively, second tube sheet (8) is positioned between shell (1) right side and the shell side outlet (6), its periphery does not have seam welding with the inner surface of shell (1), circular hole bearing (15) is welded on second tube sheet (8) left surface center, first tube sheet (7) center hole diameter, the circular hole internal diameter of circular hole bearing (15) and circular sleeve (14) internal diameter all are full of with power ultrasonic wave transducer (11) external diameter and close consistent size, dividing plate (9) level places the center between second tube sheet (8) and shell (1) right side, its periphery respectively with second tube sheet (8), the inner surface of shell (1) right side and shell (1) does not have seam welding, corresponding circular hole is gone up with first tube sheet (7) and second tube sheet (8) respectively in the two ends of heat exchanger tube (2) does not have seam welding, on, following two semicircle baffle plates (10) lay respectively at shell side inlet tube (5) right side and shell side outlet (6) left side, power ultrasonic wave transducer (11) is cylindrical, ultrasonic vibration wafer (16) wherein, ultrasonic sealing radiation sleeve pipe (17), anodal scale copper (19) and negative pole scale copper (20) are the long tube shape, ultrasonic sealing radiation sleeve pipe (17) is sealed at both ends, ultrasonic vibration wafer (16), anodal scale copper (19), negative pole scale copper (20) has identical length with fastening rod (18), all be sealed in the ultrasonic sealing radiation sleeve pipe (17), and form enclosure space with ultrasonic sealing radiation sleeve pipe (17) two ends, the outer ring surface of ultrasonic vibration wafer (16) is the negative pole face, inner ring surface is positive pole-face, the inner ring surface of fastening rod (18) by anodal scale copper (19) and ultrasonic vibration wafer (16) closely is full of and closes, the inner ring surface of the outer ring surface of ultrasonic vibration wafer (16) by negative pole scale copper (20) and ultrasonic sealing radiation sleeve pipe (17) closely is full of and closes, power ultrasonic wave transducer (11) inserts the endoporus of circular hole bearing (15) from shell (1) left side center hole, seal cover board (13) is affixed by bolt and shell (1) left side, and anodal scale copper (19) and negative pole scale copper (20) are just passing through positive wire (22) and cathode conductor (21) and power ultrasonic wave-generator (12) respectively, negative pole connects.
2. intensified by ultrasonic wave heat exchanger tube shell heat exchanger according to claim 1, it is characterized in that described heat exchanger tube (2) adopts seamless steel pipe or the copper pipe of φ 25 * 2.5mm or φ 32 * 3.0mm, ultrasonic vibration wafer (16) is made by lead titanate piezoelectric ceramics, ultrasonic sealing radiation sleeve pipe (17) is made by aluminium alloy, and fastening rod (18) is formed from steel.
3. intensified by ultrasonic wave heat exchanger tube shell heat exchanger according to claim 1, it is characterized in that the matching frequency scope between described power ultrasonic wave-generator (12) and the power ultrasonic wave transducer (11) is 18kHz～35kHz, the mesh power scope is 500W～2000W, and the thickness of anodal scale copper (19) and negative pole scale copper (20) is 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101732628A CN100535570C (en) | 2007-12-27 | 2007-12-27 | Pipe type heat exchanger with heat exchange shell intensified by ultrasonic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101732628A CN100535570C (en) | 2007-12-27 | 2007-12-27 | Pipe type heat exchanger with heat exchange shell intensified by ultrasonic wave |
Publications (2)
| Publication Number | Publication Date |
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| CN101196380A CN101196380A (en) | 2008-06-11 |
| CN100535570C true CN100535570C (en) | 2009-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007101732628A Expired - Fee Related CN100535570C (en) | 2007-12-27 | 2007-12-27 | Pipe type heat exchanger with heat exchange shell intensified by ultrasonic wave |
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| CN103123243A (en) * | 2011-11-21 | 2013-05-29 | 张建东 | Tubular heat exchanger structure provided with vibrating heat-conducting pieces |
| CN102620586B (en) * | 2012-04-01 | 2013-12-18 | 大连海事大学 | Pulsating heat pipe heat-transferring system sleeved with electric control piezoceramic blocks |
| CN102607305B (en) * | 2012-04-01 | 2013-12-18 | 大连海事大学 | Plate type pulse heat pipe heat transferring system with electrically-controlled piezoelectric ceramic block fixed on lateral side |
| CN103090700B (en) * | 2013-03-04 | 2015-04-01 | 杨铭 | Baffle high-efficient heat exchanger |
| CN103148719B (en) * | 2013-03-29 | 2014-12-24 | 北京中衡国通能源科技有限责任公司 | Heat exchanger |
| CN103433231B (en) * | 2013-08-09 | 2015-11-18 | 国家电网公司 | Main transformer radiator Ultrasonic Intelligent sealing cleaning device |
| CN104457063B (en) * | 2013-09-16 | 2017-01-04 | 海尔集团公司 | A kind of tubular radial direction piezoelectric transducer and apply the supersonic vibration exciting bank of this piezoelectric transducer |
| CN105609475A (en) * | 2016-03-21 | 2016-05-25 | 南京师范大学 | Ultrasonic reinforced micro-channel heat exchanger |
| US10563931B2 (en) * | 2016-10-05 | 2020-02-18 | Johnson Controls Technology Company | Ultrasonic enhanced heat exchanger systems and methods |
| CN106500410A (en) * | 2016-10-25 | 2017-03-15 | 珠海格力电器股份有限公司 | Air conditioning unit, shell and tube exchanger and shell and tube exchanger heat-exchange method |
| CN106767111A (en) * | 2016-12-19 | 2017-05-31 | 南京航空航天大学 | A kind of heat exchanger tube spiral dynamic disturbing flow device |
| CN108278911B (en) * | 2018-02-01 | 2019-10-29 | 克莱门特捷联制冷设备(上海)有限公司 | A kind of heat exchanger for water source heat pump units |
| CN110557934B (en) * | 2019-09-18 | 2024-02-13 | 华南理工大学 | Sound field enhanced nanofluid phase-change heat transfer micro-channel heat exchanger |
| CN112857127B (en) * | 2021-01-18 | 2022-05-31 | 中国神华煤制油化工有限公司 | Self-cleaning end cover and heat exchange equipment |
| CN113091483A (en) * | 2021-03-29 | 2021-07-09 | 江苏华兴压力容器有限公司 | Visual temperature compensation efficient anti-blocking heat exchanger |
| CN115364808A (en) * | 2022-07-26 | 2022-11-22 | 哈尔滨工业大学（深圳） | Continuous urea synthesis system |
-
2007
- 2007-12-27 CN CNB2007101732628A patent/CN100535570C/en not_active Expired - Fee Related
Non-Patent Citations (1)
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| US2006130506A1 2006.06.22 |
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Granted publication date: 20090902 Termination date: 20111227 |