CN109373798A - A kind of gas access even distribution device for heat-exchangers of the plate type - Google Patents
A kind of gas access even distribution device for heat-exchangers of the plate type Download PDFInfo
- Publication number
- CN109373798A CN109373798A CN201811320827.5A CN201811320827A CN109373798A CN 109373798 A CN109373798 A CN 109373798A CN 201811320827 A CN201811320827 A CN 201811320827A CN 109373798 A CN109373798 A CN 109373798A
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- Prior art keywords
- diversion
- section
- diversion member
- plate beam
- plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000009826 distribution Methods 0.000 title claims abstract description 16
- 239000000203 mixture Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
Abstract
A kind of gas access even distribution device for heat-exchangers of the plate type, including the inlet connection being eccentrically set on bobbin carriage, and it is mounted on the plate beam below bobbin carriage, in the plate beam both ends with inlet connection apart from farther away one end be plate beam distalmost end, the several groups diversion member of spacing arrangement is installed in the inlet connection, the deflector that every group of diversion member is made of Drainage Section, changeover portion and diversion section, the changeover portion both ends respectively with Drainage Section, diversion section is tangent is connected as one；The Drainage Section is fixed on inlet connection inner wall, and diversion section is located inside bobbin carriage and end is tilted towards the farthest extreme direction of plate beam.The present invention solve the problems, such as due to adapter tube arranged off-centre and plate beam circulation area is larger cause gas to be unevenly distributed, enhance heat exchange property, reduce the thermal expansion deformation and cracking of plate beam a possibility that.Advantage simple with structure, cheap and easy to process improves the service performance and economic performance of equipment.
Description
Technical field
The invention belongs to Thermal Power Engineering hydrodynamics and plate beam heat exchanger application technical fields, are related to a kind of for board-like
The gas access even distribution device of heat exchanger.
Background technique
Welded plate type heat exchanger is a kind of high-efficiency compact formula heat exchanger, with heat transfer coefficient is high, the pressure loss is small, structure is tight
Many advantages, such as gathering, be easy to maintenance.In recent years since flexible structure is changeable and the raising of enlarged manufacturing technology, welded plate type
Heat exchanger has been more and more widely used in gas-gas, gas-vapour and solution-air field of heat exchange.Due to in-site installation space limitation,
Also for adapter tube arrangement economy or the considerations of structural limitations, welded plate type heat exchanger medium inlet adapter tube cannot be
It is designed, and is needed using arranged off-centre between two parties on bobbin carriage.
When such eccentric joint pipe structure heat exchanger applications are when gas medium operating condition, since volumetric flow of gas is big, work as gas
When phase medium enters heat exchanger, flow velocity would generally be very high, and can be larger for the plate beam passage spacing of gas phase media design, and
The flow channel length of semicircular arch bobbin carriage is insufficient to allow gas sufficiently to spread, and above-mentioned reason causes most of gas phase media can be under adapter tube
Square region enters each channel of plate beam, and the plate beam region far from adapter tube can then generate serious heat exchange dead zone, inlet gas distribution
It is unbalanced make plate beam internal heat transfer efficiency decline, affect heat exchanger entirety heat transfer property.Medium enters pipe by adapter tube simultaneously
Case flow area becomes larger suddenly, can generate centripetal gravitation, negative pressuren zone is generated near heat exchange dead zone, so that a part of medium is formed
Vortex, causes gas energy to lose, so that actual pressure drop increases, the processing performance of heat exchanger is substantially reduced.
When gas phase media is high temperature and high pressure gas, the uneven distribution inside plate beam will lead to each region thermal expansion of plate beam
Measure inconsistent, commissure will generate biggish thermal stress, easily there is a phenomenon where weld cracking, leakage, cause to exchange heat when serious
Device failure.Therefore the reliability and processing performance that make equipment are unable to get guarantee by the weighing apparatus that is unevenly distributed of entrance medium, give day
Often production brings serious security risk.
To solve the above problems, traditional solution is: one piece of flow-stopping plate being arranged below inlet connection, gas phase is made to be situated between
Matter can diffuse to the plate beam end far from adapter tube under the action of this baffle.The heat exchange that the method can reduce plate beam end is dead
Area, but make the gas distributed effect of adapter tube lower section bad, it may be assumed that cause adapter tube lower section to solve end heat exchange dead zone
There is new dead zone.It can be seen that for traditional location mode, often between adapter tube lower plate beam and separate pipe plate Shu Erzhe
Distributed effect can not get both.
It is working as of solving the above problems therefore it provides a kind of gas branch method of plate heat exchanger adapter tube arranged off-centre
Business needs.
Summary of the invention
The present invention provides a kind of gas access even distribution device for heat-exchangers of the plate type, is drained and is led to gas
Stream reduces heat exchange dead zone and vortex phenomenon of the gas in separate inlet connection region, improves heat exchange efficiency, reduce the pressure loss.
The present invention realizes above-mentioned technical purpose by subordinate's technical solution:
A kind of gas access even distribution device for heat-exchangers of the plate type, including the inlet connection being eccentrically set on bobbin carriage, and
The plate beam being mounted below bobbin carriage with inlet connection apart from farther away one end is plate beam distalmost end in the plate beam both ends, it is described enter
The several groups diversion member of spacing arrangement is installed, every group of diversion member is by Drainage Section, changeover portion and diversion section in mouth adapter tube
The deflector of composition, the changeover portion both ends respectively with Drainage Section, diversion section is tangent is connected as one；The Drainage Section be fixed in into
On mouth nozzle inner wall, and diversion section is located inside bobbin carriage and end is tilted towards the farthest extreme direction of plate beam.
The Drainage Section of diversion member described in several groups arranges vertically, direction and plate Shu Pinghang, and each Drainage Section upper end is neat
Flat, the drainage segment length close to the diversion member of plate beam distalmost end is most short, and the drainage segment length of remaining diversion member is successively gradually
Increase.
Diversion member in diversion member described in several groups close to plate beam distalmost end is set to 1/3 ~ 1/2 position of tube diameter
Place.
Angle between the Drainage Section and diversion section of diversion member described in several groups is 20 ° ~ 60 °, close to plate beam distalmost end
Diversion member the angle is maximum, diversion section longest, the angle of remaining diversion member and the numerical value of diversion section successively gradually subtract
It is small.
The changeover portion of diversion member described in several groups is circular arc, close to the circular arc arc length of the changeover portion of plate beam distalmost end and half
Diameter is maximum, and the circular arc arc length and radius distance value of remaining diversion member changeover portion are successively gradually reduced.
The quantity of the diversion member is 2 ~ 4 groups, and the bottom end of diversion member diversion section is located at the 1/2 ~ 1/3 of bobbin carriage height
Place.
The inlet connection is located at bobbin carriage end, and the inlet connection direction and bobbin carriage are at 0 ~ 90 ° of angle.
Beneficial effects of the present invention:
The present invention is made of several groups diversion member, and diversion member is made of Drainage Section, changeover portion and diversion section, each water conservancy diversion member
The inclined angle of length and diversion section of part is different because of position difference.By the way that suitable spacing, drainage is arranged to diversion member
Gas effectively by design requirement is divided into several pieces and by heat exchanger by section and the design of the angle and whole height of diversion section
Inlet gas is uniformly guided to inside plate beam passage, solves due to adapter tube arranged off-centre and plate beam circulation area is larger makes
Being unevenly distributed at the gas, pressure loss is larger and the more low technical problem of reliability, changeover portion under the action of smooth circular arc,
Greatly reduce the formation of diversion member back vortex；Heat exchange property is enhanced, the thermal expansion deformation and cracking of plate beam are reduced
Possibility.The present invention is saved with materials, and structure is simple, the advantages of being convenient to process and mount, improves the service performance and warp of equipment
Ji performance.
Detailed description of the invention
Fig. 1 is three dimensional structure diagram of the invention；
Fig. 2 is cross-sectional view of the invention；
Fig. 3 is diversion member structural schematic diagram of the present invention；
Fig. 4 is the A direction view of Fig. 3.
Specific implementation method
The present invention and its advantages are further illustrated with reference to the accompanying drawing.
Following embodiment illustrates so that deflector is 3 groups as an example.
Embodiment 1, referring to Fig. 1, a kind of gas access even distribution device for heat-exchangers of the plate type, including inlet connection 1,
Diversion member 2, bobbin carriage 3 and plate beam 4, inlet connection 1 is located at bobbin carriage end, arranges at eccentric setting, and perpendicular to bobbin carriage, plate beam
4 are mounted below bobbin carriage, are known as plate beam distalmost end apart from farther away one end with inlet connection 1 in plate beam both ends, are closer
One end is known as plate Shu Yuanduan, and the several groups diversion member of spacing arrangement is equipped in the inlet connection, and every group of diversion member 2 is
The deflector being made of Drainage Section 21, changeover portion 22 and diversion section 23, the changeover portion both ends are tangent with Drainage Section, diversion section respectively
It is connected as one；The Drainage Section is fixed on inlet connection inner wall, and diversion section is located inside bobbin carriage and end away from
The direction of inlet connection tilts.Drainage Section and diversion section are straight flange sheet metal, and changeover portion is arc-shaped sheet metal, the thickness of steel plate
For 4mm ~ 8mm, suitable thickness and material are chosen according to gas medium flow, temperature, pressure size transitivity.
The Drainage Section of diversion member described in several groups arranges vertically, direction and plate Shu Pinghang, and each Drainage Section upper end is neat
Flat, the drainage segment length close to the diversion member of plate beam distalmost end is most short, and the drainage segment length of remaining diversion member is successively gradually
Increase.As shown in Fig. 2, inlet gas can be divided by the Drainage Section upper end of deflector 5,6,7 by being fixedly welded on nozzle inner wall
Four parts, but each Drainage Section length of straight flange differs, and successively increases from left to right in Fig. 2, i.e. Drainage Section < deflector 6 of deflector 5
7 Drainage Section of Drainage Section < deflector.
Diversion member in diversion member described in several groups close to plate beam distalmost end is set to 1/3 ~ 1/2 position of tube diameter
Place.As shown in Figure 2, deflector 5 is located at tube diameter 1/3, it is therefore an objective to which most gas mediums are led to the position far from adapter tube
It sets, i.e. the distal end of plate beam；There are spacing between the Drainage Section of adjacent guide element, the size of spacing can according to gas physical property and
Operating condition is reasonably selected and is adjusted.
Angle between the Drainage Section and diversion section of diversion member described in several groups is 20 ° ~ 60 °, i.e., diversion section lower end to
The inclination of plate beam distalmost end, close to the diversion member of plate beam distalmost end the angle is maximum, diversion section longest, remaining diversion member
The numerical value of angle and diversion section is successively gradually reduced.In Fig. 2, the inclined angle of length and diversion section of diversion section is from left to right
It gradually becomes smaller, i.e. the diversion section of diversion section > deflector 7 of diversion section > deflector 6 of deflector 5.In order to increase diversion member
Intensity, the two sides of diversion section and bobbin carriage inner wall weld.
The changeover portion of diversion member described in several groups is the circular arc tangent with Drainage Section lower end and diversion section upper end, close to plate
The circular arc arc length and radius of the changeover portion of beam distalmost end are maximum, the circular arc arc length and radius distance value of remaining diversion member changeover portion according to
It is secondary to be gradually reduced.In Fig. 2, the radian and radius of circular arc are gradually reduced from left to right, i.e. changeover portion > deflector 6 of deflector 5
Changeover portion > deflector 7 changeover portion.The purpose for increasing the arc section is to reduce diversion member dorsal area to form the several of vortex
Rate, to realize the uniformly distributed purpose of inlet gas.
The quantity of the diversion member is 2 ~ 4 groups, and the bottom end of diversion member diversion section is located at the 1/2 ~ 1/3 of bobbin carriage height
Place.
If the position of the bottom end of diversion section is located at less than the 1/3 of bobbin carriage height, i.e., entire deflector is very short, and gas does not have
Have by good drainage, is not introduced to corresponding position just voluntarily diffusion profile also, will lead to plate Shu Yuanduan and deflector
There is part dead zone in dorsal area.
If the position of the bottom end of diversion section is more than the 1/2 of bobbin carriage height, i.e. diversion section bottom end and plate beam is very close to gas
The most of the time is constantly subjected to the limitation of diversion member in flow process, is detached from after diversion member, gas itself is uniformly distributed
Space greatly reduces, and also having not enough time to be evenly distributed has entered plate beam, that is, reduces the sky that gas relies on inertia diffusion profile
Between.
After gas medium enters adapter tube, the gas medium in inlet connection is divided into four parts by diversion member Drainage Section,
And it is drained to inside bobbin carriage；The gas for being drained to bobbin carriage is uniformly guided to the left, center, right of plate beam by the diversion section of diversion member
Three regions.Wherein, the effect of deflector 5 be drained come gas 8 be guided to plate beam left area, due to this region away from
It is farthest from adapter tube, and corresponding area is larger, therefore the position of Drainage Section is located at the 1/3 ~ 1/2 of tube diameter, may make
Most gas mediums flow to the biggish distal end of area；Length, diversion section and the angle of Drainage Section and transition arc of diversion section
Also maximum, it by the higher flow velocity of gas, can make it under the action of diversion member and self inertia, be drained to left distal area
Domain；The effect of deflector 6 is to be drained the gas 9 come to be guided to plate beam central region；The effect of deflector 7 is by gas
10,11 are guided to plate beam right areas, that is, adapter tube lower zone, therefore the changeover portion of diversion member uses lesser circular arc
Radius achieves that water conservancy diversion purpose.Under the action of diversion member, it is most of directly from adapter tube lower plate line to solve gas
The problem of walking reduces the presence in plate Shu Yuanduan heat exchange dead zone, improves heat exchange efficiency；It is avoided simultaneously since flow of media is cut
Face becomes larger suddenly and the vortex that generates, reduces pressure drop loss, guarantees the runnability and reliability of equipment.
The quantity of diversion member can carry out comprehensive consideration according to plate Shu Houdu and adapter tube size.When the stream of inlet gas medium
Amount increases, i.e., when inlet flow rate increases, the inertia and turbulent flow of gas can enhance, and therefore, can suitably reduce diversion member changeover portion
Arc size and water conservancy diversion segment length.The thickness of diversion member, height, the length of Drainage Section and diversion section and angle etc. can bases
Specific design requirement is adjusted.
Embodiment 2, also can be according to live specific requirement, by inlet connection and bobbin carriage at 0 ~ 90 ° of angle cloth in the present embodiment
It sets.Remaining is the same as embodiment 1.
The present invention can be such that gas medium is uniformly distributed in eccentric adapter tube arragement construction, and equalization gas is in each channel of plate beam
Mobility status, reduce gas pressure drop loss, reduce Local Heat Transfer dead zone and vortex, improve heat exchange efficiency, guarantee that heat exchanger is high
Effect operation, ensures the safety and stability of equipment.Have the advantages that simple structure and convenient processing, can be widely applied to gas-
Gas, solution-air, gas-vapour field of heat exchange.
Claims (7)
1. a kind of gas access even distribution device for heat-exchangers of the plate type, including the inlet connection being eccentrically set on bobbin carriage,
And it is mounted on the plate beam below bobbin carriage, and it with inlet connection apart from farther away one end is plate beam distalmost end in the plate beam both ends, it is special
Sign is: the several groups diversion member of spacing arrangement is equipped in the inlet connection, every group of diversion member is by Drainage Section, mistake
Cross the deflector of section and diversion section composition, the changeover portion both ends respectively with Drainage Section, diversion section is tangent is connected as one；It is described to draw
Stream section is fixed on inlet connection inner wall, and diversion section is located inside bobbin carriage and end is tilted towards the farthest extreme direction of plate beam.
2. a kind of gas access even distribution device for heat-exchangers of the plate type according to claim 1, it is characterised in that: if
It does a group Drainage Section for the diversion member to arrange vertically, direction and plate Shu Pinghang, and each Drainage Section upper end flushes, close to plate beam
The drainage segment length of the diversion member of distalmost end is most short, and the drainage segment length of remaining diversion member successively gradually increases.
3. a kind of gas access even distribution device for heat-exchangers of the plate type according to claim 2, it is characterised in that: if
Diversion member in the dry group diversion member close to plate beam distalmost end is set at 1/3 ~ 1/2 position of tube diameter.
4. a kind of gas access even distribution device for heat-exchangers of the plate type according to claim 1, it is characterised in that: if
Angle between the Drainage Section and diversion section of the dry group diversion member is 20 ° ~ 60 °, close to the diversion member of plate beam distalmost end
The angle is maximum, diversion section longest, the angle of remaining diversion member and the numerical value of diversion section are successively gradually reduced.
5. a kind of gas access even distribution device for heat-exchangers of the plate type according to claim 1, it is characterised in that: if
The changeover portion of the dry group diversion member is circular arc, and the circular arc arc length and radius close to the changeover portion of plate beam distalmost end are maximum,
The circular arc arc length and radius distance value of remaining diversion member changeover portion are successively gradually reduced.
6. a kind of gas access even distribution device for heat-exchangers of the plate type according to claim 1-5, special
Sign is: the quantity of the diversion member is 2 ~ 4 groups, and the bottom end of diversion member diversion section is located at the 1/2 ~ 1/3 of bobbin carriage height.
7. a kind of gas access even distribution device for heat-exchangers of the plate type according to claim 6, it is characterised in that: institute
It states inlet connection and is located at bobbin carriage end, the inlet connection direction and bobbin carriage are at 0 ~ 90 ° of angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811320827.5A CN109373798A (en) | 2018-11-07 | 2018-11-07 | A kind of gas access even distribution device for heat-exchangers of the plate type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811320827.5A CN109373798A (en) | 2018-11-07 | 2018-11-07 | A kind of gas access even distribution device for heat-exchangers of the plate type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109373798A true CN109373798A (en) | 2019-02-22 |
Family
ID=65383825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811320827.5A Pending CN109373798A (en) | 2018-11-07 | 2018-11-07 | A kind of gas access even distribution device for heat-exchangers of the plate type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109373798A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005147426A (en) * | 2003-11-11 | 2005-06-09 | Mitsubishi Chemicals Corp | Heat exchanger |
| CN101158558A (en) * | 2007-07-24 | 2008-04-09 | 李建明 | Plate-fin heat exchanger |
| CN102042075A (en) * | 2010-12-16 | 2011-05-04 | 浙江大学 | Vehicle intercooler based on heat medium splitting technology |
| CN104197771A (en) * | 2014-09-12 | 2014-12-10 | 甘肃蓝科石化高新装备股份有限公司 | Flow equalization structure for air inlet of heat exchanger plate beam |
| CN105003289A (en) * | 2015-08-12 | 2015-10-28 | 山西煤炭进出口集团科技发展有限公司 | Diffusion tower for mine air return and heat exchange |
| CN206037812U (en) * | 2016-07-22 | 2017-03-22 | 甘肃蓝科石化高新装备股份有限公司 | A fluid equipartition structure that is used for board -like air cooler core to enter mouth |
| CN209263764U (en) * | 2018-11-07 | 2019-08-16 | 甘肃蓝科石化高新装备股份有限公司 | A kind of gas access even distribution device for heat-exchangers of the plate type |
-
2018
- 2018-11-07 CN CN201811320827.5A patent/CN109373798A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005147426A (en) * | 2003-11-11 | 2005-06-09 | Mitsubishi Chemicals Corp | Heat exchanger |
| CN101158558A (en) * | 2007-07-24 | 2008-04-09 | 李建明 | Plate-fin heat exchanger |
| CN102042075A (en) * | 2010-12-16 | 2011-05-04 | 浙江大学 | Vehicle intercooler based on heat medium splitting technology |
| CN104197771A (en) * | 2014-09-12 | 2014-12-10 | 甘肃蓝科石化高新装备股份有限公司 | Flow equalization structure for air inlet of heat exchanger plate beam |
| CN105003289A (en) * | 2015-08-12 | 2015-10-28 | 山西煤炭进出口集团科技发展有限公司 | Diffusion tower for mine air return and heat exchange |
| CN206037812U (en) * | 2016-07-22 | 2017-03-22 | 甘肃蓝科石化高新装备股份有限公司 | A fluid equipartition structure that is used for board -like air cooler core to enter mouth |
| CN209263764U (en) * | 2018-11-07 | 2019-08-16 | 甘肃蓝科石化高新装备股份有限公司 | A kind of gas access even distribution device for heat-exchangers of the plate type |
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