CN110006277A - A kind of waveform fluid channel heat exchanger fin of plate heat exchanger - Google Patents
A kind of waveform fluid channel heat exchanger fin of plate heat exchanger Download PDFInfo
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- CN110006277A CN110006277A CN201910377846.XA CN201910377846A CN110006277A CN 110006277 A CN110006277 A CN 110006277A CN 201910377846 A CN201910377846 A CN 201910377846A CN 110006277 A CN110006277 A CN 110006277A
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- heat exchanger
- fluid channel
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- waveform
- channel
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- 239000012530 fluid Substances 0.000 title claims abstract description 140
- 239000012535 impurity Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 230000008021 deposition Effects 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 description 11
- 238000012546 transfer Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of waveform fluid channel heat exchanger fin of plate heat exchanger, and the plate type heat exchange piece upper fluid channel which is related to is the wavy shaped configuration that circular arc unit is formed by connecting.Existing fluid straight channel is changed into wavy shaped configuration by the present invention, improves the heat exchange area of fluid media (medium)；Pass through waveform fluid channel difference arrangement mode, change the overflow section of fluid media (medium), increase media flow speed and turbulence intensity, fluid media (medium) is improved to the shear action of wall surface, reduce wall boundary layer thickness, improve heat exchange efficiency, deposits to be formed and wash away simultaneously for the impurity of wall area, it realizes the self-cleaning function in heat exchanger operational process, reduces impurity deposition in fluid channel, blocking risk.The invention changes the disadvantage that plate type heat exchange piece upper fluid channel design is single, heat exchange area is fixed, while realizing the self-cleaning function of plate type heat exchange piece operational process, improves equipment overall operation efficiency and security and stability.
Description
Technical field
The present invention designs board-like field of heat exchangers, and in particular, to a kind of waveform fluid channel of plate heat exchanger changes
Backing.
Background technique
The advantages that plate heat exchanger came out over more than 100 years, high, compact-sized, dismounting is flexible because of its heat exchange efficiency, in stone
Oil, chemical industry, light textile, HVAC, food, medicine and other fields are widely applied.With the increasingly intensification of world energy sources crisis, and
For the increasingly raising of environmental requirement, plate heat exchanger efficiently, energy saving, economic will during following market development in China
Obtain more extensive prospect.
Plate heat exchanger is staggered and is assembled by shape, the identical heat exchanger plates of specification.The core space of heat exchanger plates
Domain includes shunting zone, flow region (i.e. fluid channel area) and doab.Wherein, the main region of fluid heat transfer is fluid channel
Area.Currently, the fluid channel of all heat exchanger plates to have emerged is all straight channel, the effective heat-transfer surface of heat exchanger plates is on the one hand limited
Long-pending development, constrains the raising of the overall operation efficiency of plate heat exchanger, is on the other hand easy to cause miscellaneous in fluid media (medium)
Matter particle flow process deposits, and causes channel blockage, influences heat exchanger operational safety.
Therefore, heat exchanger plates fluid channel structure how is transformed, increases fluid effective heat exchange area, improves heat exchanger and integrally transports
Line efficiency reduces impurity deposition, blocking risk, becomes and restrict the critical issue that plate heat exchanger further develops.
Summary of the invention
In view of this, the present invention provides a kind of waveform fluid channel heat exchanger fins of plate heat exchanger, to improve fluid
Media for heat exchange area enhances fluid velocity and turbulent extent, improves equipment heat-transfer effect, while reducing impurity deposition, blocking wind
Danger.To achieve the above object, the invention provides the following technical scheme:
A kind of waveform fluid channel heat exchanger fin of plate heat exchanger, the waveform fluid channel heat exchanger fin is from top to bottom
It successively include fluid inlet, fluid channel and fluid outlet；The fluid channel is waveform, by arc-shaped unit arranged opposite
Composition；
The radius of curvature R of the arc-shaped unit meets relational expression:
Wherein, R is the radius of curvature of arc-shaped unit；L1、L2The respectively upper and lower base width of flow channel cross-sections；υ
For the kinematic viscosity of fluid media (medium)；Q is that heat exchanger runs total flow；NPlateFor amount of heat exchanger plates；NChannelTo be flowed possessed by heat exchanger plates
Body number of channels；H is fluid channel height；
The circular arc cell height h meets relationship: h=0.25 × (L1+L2)(1-COSθ)
Wherein, θ is central angle corresponding to arc-shaped unit.
Further, the inclination angle alpha of the fluid channel meets relational expression: 30 °≤α≤45 °.
Further, it is to be collectively aligned or incorgruous arrangement that those skilled in the art, which only need to be simply provided the fluid channel, is come
The effectively overflow section of reduction fluid improves fluid media (medium) and flows speed, further enhance the turbulent extent of fluid media (medium), enhances
Heat exchange, and wooden partition impurity deposition in channel is washed away.
Further, when the fluid channel is distributed in the same direction, outer arc cell height h meets relational expression: h < R, i.e.,
180 ° of central angle θ <.
Further, the fluid channel unambiguously integrally can also be arranged into herringbone by those skilled in the art
Shape.
Compared with prior art, the invention has the benefit that one kind provided by the invention novel plate-type heat-exchange
Waveform fluid channel heat exchanger fin will be traditional by crucial heat exchange area-fluid flow region innovative design to plate heat exchanger
Parallel straight channel optimize, waveform fluid channel is combined by circular arc unit group.It is logical that fluid media (medium) flows through waveform
During road, under the structure water conservancy diversion of circular arc unit, secondary flow phenomenon is generated, enhances the shearing between fluid and channel wooden partition
On the one hand effect reduces wooden partition boundary layer thickness, enhance heat transfer effect；On the other hand the impurity near the wooden partition of channel is deposited into
Row effectively impact, forms the self-cleaning function during media flow, reduces heat exchanger and blocks risk.Therefore, this programme provides
Novel plate heat exchanger waveform fluid channel heat exchanger fin, plate heat exchanger heat exchange area and heat exchange can be effectively improved
Efficiency changes fluid media (medium) and flows speed, and amplified medium turbulent extent realizes fluid operational process self-cleaning function, and reduction is changed
Hot device impurity deposition blocking risk, effective raising equipment overall operation efficiency and security and stability.
Detailed description of the invention
Fig. 1 is that waveform fluid channel of the present invention arranges heat exchanger fin schematic diagram in opposite directions；
Fig. 2 is that waveform fluid channel of the present invention is collectively aligned fluid channel schematic diagram；
Fig. 3 is that waveform fluid channel of the present invention is collectively aligned partial schematic diagram.
Specific embodiment
The invention discloses a kind of waveform fluid channel heat exchanger fins of plate heat exchanger, to improve heat exchanger plates heat-transfer surface
Product enhances heat exchanger overall operation efficiency, improves medium flow rate and turbulent extent, enhances equipment heat exchange efficiency, drops simultaneously
Impurity deposition, blocking risk in low equipment running process.
A kind of waveform fluid channel heat exchanger fin of plate heat exchanger, the waveform fluid channel heat exchanger fin from top to bottom according to
Secondary includes fluid inlet, fluid channel and fluid outlet；The fluid channel is waveform, by arc-shaped unit arranged opposite group
At；Fluid media (medium) enters fluid channel through fluid inlet, main heat transfer process is completed in the fluid passage, finally by fluid outlet
Outflow, so that the temperature of fluid media (medium) reduces.Wherein, waveform fluid channel is formed by circular arc unit arranged opposite, arc-shaped
The radius of curvature R of unit meets relational expression:Wherein, R is arc-shaped unit
Radius of curvature；L1、L2The respectively upper and lower base width of flow channel cross-sections；υ is the kinematic viscosity of fluid media (medium)；Q is to change
Hot device runs total flow；NPlateFor amount of heat exchanger plates；NChannelFor fluid channel quantity possessed by heat exchanger plates, H is that fluid channel is high
Degree.
When fluid media (medium) flows in waveform channel, due to the presence of radius of curvature, it can generate under the action of the centrifugal force
Secondary flow phenomenon causes between fluid and wooden partition shear action to be reinforced, and on the one hand reduces wall boundary layer thickness, enhancing fluid with
On the other hand heat exchange efficiency between wooden partition effectively washes away the impurity deposition in wooden partition region, realizes fluid motion process
In self-cleaning function.Definition Secondary Flow intensity index is D, and expression formula is as follows:
Wherein, r is the half width of fluid channel；R is the radius of curvature of arc structure；V is media flow speed, by following formula
It obtains.
Wherein, Q is total flow when equipment is run；NPlateThe plate number for including by heat exchanger；NChannelIt is wrapped by monolithic heat exchanger plates
The fluid channel number contained.Experimental research find that when secondary intensity of flow D is 2100, the heat exchange efficiency of waveform fluid channel
Highest.At this point, fluid media (medium) in channel with lesser fluid resistance loss, form stronger secondary flow phenomenon, reduce
The boundary layer thickness in waveform wooden partition region, enhances the heat exchange efficiency between fluid media (medium) and wooden partition；Meanwhile strengthening fluid
Medium realizes the self-cleaning function of equipment for the souring of wooden partition region impurity.
Half width r=0.25 × (L of fluid channel1+L2), circular arc cell height h=0.25 × (L1+L2)(1-COSθ)
Wherein L1、L2The respectively upper and lower width of fluid channel, θ are central angle corresponding to arc-shaped unit.
Waveform fluid channel according to the present invention, it is whole to use herringbone (or herringbone) structural arrangement, fluid
The inclination angle alpha in channel meets relational expression: 30 °≤α≤45 °.At this point, fluid media (medium) through distributed area enter fluid channel along journey
Resistance is smaller, and the whole pressure drop of equipment is in optimized scope.If 30 ° of inclination angle alpha <, fluid enters during flow region
On-way resistance it is excessive, cause heat exchanger operation energy consumption sharply to increase；If 45 ° of inclination angle alpha >, being formed in operational process
Secondary intensity of flow is too small, causes heat exchanger heat exchange efficiency too low.
It is to be collectively aligned or incorgruous arrangement that those skilled in the art, which only need to be simply provided the fluid channel, effectively to reduce stream
The overflow section of body improves fluid media (medium) and flows speed, further enhances the turbulent extent of fluid media (medium), and enhancing exchanges heat, and right
Wooden partition impurity deposition in channel is washed away.
When the fluid channel is distributed in the same direction, outer arc cell height h meets relational expression: h < R, i.e. central angle θ <
180 °, reduce the risk that the impurity in fluid media (medium) deposits in outer side region.
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the present invention
Embodiment, those skilled in the art's every other embodiment obtained without making creative work all belongs to
In the scope of protection of the invention.
Embodiment 1
Heat exchanger fin schematic diagram is arranged in opposite directions for waveform fluid channel as shown in Figure 1, the waveform fluid channel heat exchanger fin
It from top to bottom successively include fluid inlet, fluid channel and fluid outlet；The fluid channel is waveform, by arc-shaped unit phase
To rearranging.The present embodiment takes the upper bottom edge width L of flow channel cross-sections1For 0.8cm, go to the bottom hem width degree L2For 1.2cm, change
Hot plate quantity NPlateIt is 15；Fluid channel quantity N possessed by heat exchanger platesChannelIt is 30, fluid channel height H is 5cm, design
Radius of curvature R for the circular arc unit in the waveform fluid channel of 65 DEG C of hot water heat exchange is 5.5cm, circular arc cell height h
For 0.25cm, and the inclination angle alpha of fluid channel is 30 °, and waveform fluid channel arranges in opposite directions, heat exchanger fin composition heat exchange
Device, by the flow velocity of 1m/s by 65 DEG C of hot water inflow heat exchanger, it is 26 DEG C that temperature is detected in exit.
Embodiment 2
It is collectively aligned heat exchanger fin schematic diagram for waveform fluid channel as shown in Figure 2,3, waveform fluid channel heat exchange
Piece successively includes fluid inlet, fluid channel and fluid outlet from top to bottom；The fluid channel is waveform, by arc-shaped unit
Arranged opposite composition.The present embodiment takes the upper bottom edge width L of flow channel cross-sections1For 0.8cm, go to the bottom hem width degree L2For 1.2cm,
Amount of heat exchanger plates NPlateIt is 15；Fluid channel quantity N possessed by heat exchanger platesChannelIt is 30, fluid channel height H is 5cm, design
For 65 DEG C of hot water heat exchange waveform fluid channel in circular arc unit radius of curvature R be 5.5cm, circular arc cell height
H is 0.25cm, and the inclination angle alpha of fluid channel is 45 °, and waveform fluid channel is collectively aligned, and heat exchanger fin composition changes
Hot device, by the flow velocity of 1m/s by 65 DEG C of hot water inflow heat exchanger, it is 22 DEG C that temperature is detected in exit.
Embodiment 1 and embodiment 2 provide the different arranged distribution modes of waveform fluid channel, according to the practical work in scene
Condition and demand are reasonably selected and are distributed, while improving heat exchange area and heat exchange efficiency, reducing blocking risk, effectively
The operation adaptability and stability of heat exchange equipment are widened.
Comparative example
The heat exchanger fin successively includes fluid inlet, fluid channel and fluid outlet from top to bottom；Fluid media (medium) enters through fluid
Mouth flows into, and the main heat transfer process of fluid media (medium) is completed through fluid channel, is finally flowed out by fluid outlet.The fluid channel is whole
Using herringbone structure, which is straight-through section.
Heat exchanger fin 15 of above-mentioned only straight-through section fluid channel are taken, there are 30 fluid channels on every heat exchanger fin, takes
Plate heat exchanger is built up, with the flow velocity of 1m/s by 65 DEG C of hot water inflow heat exchanger, it is 45 DEG C that temperature is detected in exit.
Claims (5)
1. a kind of waveform fluid channel heat exchanger fin of plate heat exchanger, which is characterized in that the waveform fluid channel heat exchange
Piece successively includes fluid inlet, fluid channel and fluid outlet from top to bottom；The fluid channel is waveform, by arc-shaped list
First arranged opposite composition；
The radius of curvature R of the arc-shaped unit meets relational expression:Wherein,
R is the radius of curvature of arc-shaped unit；L1、L2The respectively upper and lower base width of flow channel cross-sections；υ is the fortune of fluid media (medium)
Kinetic viscosity；Q is that heat exchanger runs total flow；NPlateFor amount of heat exchanger plates；NChannelFor fluid channel quantity possessed by heat exchanger plates；H is
Fluid channel height；
The circular arc cell height h meets relationship: h=0.25 × (L1+L2)(1-COSθ)
Wherein, θ is central angle corresponding to arc-shaped unit.
2. a kind of waveform fluid channel heat exchanger fin of plate heat exchanger according to claim 1, which is characterized in that described
The inclination angle alpha of fluid channel meets relational expression: 30 °≤α≤45 °.
3. a kind of waveform fluid channel heat exchanger fin of plate heat exchanger according to claim 1, which is characterized in that described
Fluid channel is setting or incorgruous setting in the same direction.
4. a kind of waveform fluid channel heat exchanger fin of plate heat exchanger according to claim 1, which is characterized in that work as institute
When stating fluid channel and being distributed in the same direction, outer arc cell height h meets relational expression: h < R, i.e. 180 ° of central angle θ <.
5. a kind of waveform fluid channel heat exchanger fin of plate heat exchanger according to claim 1, which is characterized in that described
Fluid channel generally herringbone is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910377846.XA CN110006277A (en) | 2019-05-06 | 2019-05-06 | A kind of waveform fluid channel heat exchanger fin of plate heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910377846.XA CN110006277A (en) | 2019-05-06 | 2019-05-06 | A kind of waveform fluid channel heat exchanger fin of plate heat exchanger |
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| CN110006277A true CN110006277A (en) | 2019-07-12 |
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| CN201910377846.XA Pending CN110006277A (en) | 2019-05-06 | 2019-05-06 | A kind of waveform fluid channel heat exchanger fin of plate heat exchanger |
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Citations (8)
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|---|---|---|---|---|
| CN200968801Y (en) * | 2006-11-09 | 2007-10-31 | 山东北辰集团华润换热设备有限公司 | Heat exchange plate of Plate-type heat exchanger |
| CN102384689A (en) * | 2011-11-02 | 2012-03-21 | 山东大学 | Composite corrugated plate of heat exchanger |
| CN103727828A (en) * | 2013-12-30 | 2014-04-16 | 天津博泰换热设备有限公司 | Plate heat exchanger plate with fluid passages different in cross sectional area and plate heat exchanger |
| CN205373466U (en) * | 2015-12-04 | 2016-07-06 | 上海宝丰机械制造有限公司 | Plate heat exchanger |
| CN106895734A (en) * | 2015-12-18 | 2017-06-27 | 巴东县丰太农业专业合作社 | It is a kind of with composite corrugated heat-exchanger rig |
| WO2018124980A2 (en) * | 2016-12-26 | 2018-07-05 | Ptt Global Chemical Public Company Limited | A heat exchanger for exchanging heat of fluids having different temperatures |
| CN108592666A (en) * | 2018-04-30 | 2018-09-28 | 南京理工大学 | plate heat exchanger herringbone plate |
| CN210374731U (en) * | 2019-05-06 | 2020-04-21 | 南通文鼎换热设备科技有限公司 | Wave-shaped fluid channel heat exchange fin of plate heat exchanger |
-
2019
- 2019-05-06 CN CN201910377846.XA patent/CN110006277A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| CN200968801Y (en) * | 2006-11-09 | 2007-10-31 | 山东北辰集团华润换热设备有限公司 | Heat exchange plate of Plate-type heat exchanger |
| CN102384689A (en) * | 2011-11-02 | 2012-03-21 | 山东大学 | Composite corrugated plate of heat exchanger |
| CN103727828A (en) * | 2013-12-30 | 2014-04-16 | 天津博泰换热设备有限公司 | Plate heat exchanger plate with fluid passages different in cross sectional area and plate heat exchanger |
| CN205373466U (en) * | 2015-12-04 | 2016-07-06 | 上海宝丰机械制造有限公司 | Plate heat exchanger |
| CN106895734A (en) * | 2015-12-18 | 2017-06-27 | 巴东县丰太农业专业合作社 | It is a kind of with composite corrugated heat-exchanger rig |
| WO2018124980A2 (en) * | 2016-12-26 | 2018-07-05 | Ptt Global Chemical Public Company Limited | A heat exchanger for exchanging heat of fluids having different temperatures |
| CN108592666A (en) * | 2018-04-30 | 2018-09-28 | 南京理工大学 | plate heat exchanger herringbone plate |
| CN210374731U (en) * | 2019-05-06 | 2020-04-21 | 南通文鼎换热设备科技有限公司 | Wave-shaped fluid channel heat exchange fin of plate heat exchanger |
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| Title |
|---|
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190819 Address after: No. 168 Hongjiang Road, Chongchuan District, Nantong City, Jiangsu Province Applicant after: Nantong Haitkeler Heat Exchange Equipment Technology Co., Ltd. Address before: 210000 No. 216, 115 Hongqiao Street, Chongchuan District, Nantong City, Jiangsu Province Applicant before: Nantong Wending Heat Exchange Equipment Technology Co., Ltd. |