CN100404996C - River diversion apparatus preventing abrasion for socket-welding and the plate type solid-liquid phase flow heat-exchangers - Google Patents
River diversion apparatus preventing abrasion for socket-welding and the plate type solid-liquid phase flow heat-exchangers Download PDFInfo
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- CN100404996C CN100404996C CNB2006101049260A CN200610104926A CN100404996C CN 100404996 C CN100404996 C CN 100404996C CN B2006101049260 A CNB2006101049260 A CN B2006101049260A CN 200610104926 A CN200610104926 A CN 200610104926A CN 100404996 C CN100404996 C CN 100404996C
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Abstract
The invention provides an anti-erosion and diversion device of plate type heat exchanger for solid and liquid two-phase weld, comprising inlet flange connected with system pipe, U-shaped or S-shaped buffering assignment channel, rectangle flange connected with the inlet of heat exchanger and guide blade set at the inlet of U-shaped or S-shaped buffering assignment channel. When solid and liquid two-phase flow form the system pipe passes through U-shaped or S-shaped buffering assignment channel, the overspeed part strikes to the wall of buffering assignment channel in advance and after buffering, it enters into the plate of heat exchanger through rectangle flange and inlet of heat exchanger. The problem that the plate is worn partially at the inlet of heat exchanger is solved efficiently. Meanwhile, solid and liquid two-phase flow distributed by guide blade enters into the channel among plates of heat exchanger so that the velocity of flow is uniformed in the channel among plates of heat exchanger and the partial erosion of plates of heat exchanger is alleviated greatly. The service life of equipment is improved 5-15 times.
Description
Technical field
The invention belongs to the heat exchanger river diversion apparatus preventing abrasion, relate to a kind of medium import river diversion apparatus preventing abrasion that is applicable to the solid-liquid two-phase flow heat exchanger, relate in particular to a kind of medium import guiding device that is used for the anti-abrasion of solid-liquid two-phase flow fat pipe welded type plate type heat exchanger.
Background technology
In the sandy alumina industrial production, the middle preface of sodium aluminate solution and agglomeration temperature are controlled the important step that is absolutely necessary, and also are links that guarantees the sandy alumina product quality.Its medium is the solid-liquid two-phase sodium aluminate solution that contains alumina particle 350～900g/l, owing to contain the souring of a large amount of solid particle solution, causes the part abrasion phenomenon of heat exchanger entrance place plate extremely serious, causes heat transmission equipment to lose efficacy in advance.
The function of fat pipe welded type plate type heat exchanger medium import guiding device is that the medium that enters heat exchanger is carried out water conservancy diversion, distribution, makes that the flow when medium enters runner between heat exchanger plate is even, the flow velocity unanimity.At present, the import of fat pipe welded type plate type heat exchanger medium distributes the structure of passage to distribute passage, rectangular flange to form by suction flange, " day round bottom side " type, suction flange selection standard flange, link to each other with medium pipeline, rectangular flange is connected with the rectangular flange face of fat pipe welded type plate type heat exchanger medium import, and " day round bottom side " type distribution passage is the transition passage between circular suction flange and the rectangular flange.During work, medium enters " day round bottom side " type from suction flange and distributes passage to launch, and the rectangular flange of directly flowing through enters runner between heat exchanger plate.
Observe the position of the abrasion of fat pipe welded plate type heat exchanger generation in the past, the abrasion phenomenon all mainly occurs in the middle part of heat exchanger sodium aluminate solution porch plate, utilize solid-liquid two-phase flow flow field analysis technology and field experiment test, to the fat pipe welded type plate type heat exchanger of having denuded in the past, and employed " day round bottom side " type import distributes passage to carry out flow field analysis, find because " day round bottom side " type distributes the structure of passage (referring to Fig. 1, two phase flow through system pipeline 6 by suction flange 1, it round bottom square buffering is distributed passage 5, rectangular flange 3 enters heat exchanger entrance 7) problem, when causing solid-liquid two-phase flow to enter fat pipe welded type plate type heat exchanger, the plate at middle part, direct impingement heat transfer device porch, velocity flow profile is inhomogeneous, the highest differing with flow velocity lowest part reaches 70%～110%, this is to cause the serious main cause of the local abrasion in fat pipe welded type plate type heat exchanger plate porch, causes and has only 1/4～1/10 of designed capacity equipment life.
Summary of the invention
The objective of the invention is to be used for the local abrasion problem of solid-liquid two-phase flow fat pipe welded type plate heat exchanger medium entrance place plate in order to solve, provide a kind of can the boot media uniform distribution, flow velocity unanimity when making it enter between heat exchanger plates runner is to slow down the guiding device of solid-liquid two-phase flow with the local abrasion in plate porch of fat pipe welded type plate type heat exchanger.
Solid-liquid two-phase flow welded plate type heat exchanger river diversion apparatus preventing abrasion of the present invention comprises suction flange, " U " type or " S " type buffering distribution passage that is connected with system pipeline and the rectangular flange that is connected with heat exchanger entrance successively.Wherein the cross section of " U " type or " S " buffering distribution passage is a rectangle.
After making solid-liquid two-phase flow enter the distribution passage, better shunted, distribute the porch of passage to be provided with guide vane, and this guide vane distributes passage to become 7.5 °～15 ° angle with buffering in " U " type or " S " buffering.
The present invention compared with prior art has the following advantages:
1, the present invention is because the buffering of " S " type of employing or " U " type is distributed passage, by the next solid-liquid two-phase flow of circular pipe, after the too high part of flow velocity impacts buffering earlier and distributes channel wall to obtain buffering in the middle of it, enter on the plate of heat exchanger by rectangular flange, heat exchanger entrance again, therefore efficiently solve the local abrasion problem of plate at heat exchanger entrance place.
2, the buffering of " S " type of the present invention or " U " type distributes the porch of passage to be provided with guide vane, solid-liquid two-phase flow distributes passage through " S " type or " U " type buffering, runner between the plate through entering heat exchanger after the guide vane distribution again makes that the interior flow velocity of runner is even between heat exchanger plate.Utilize solid-liquid two-phase flow flow field analysis technology and field experiment test, the feeder connection place carries out flow field analysis between the heat exchanger plate of back to improving, the highest and flow velocity lowest part only differ 15%～25%, because erosive rate and flow velocity exponent function relation change, by optimizing the uniformity of heat exchanger entrance place velocity flow profile, with slowing down the part abrasion of heat exchanger plate greatly, make and improve 5～15 times equipment life.
3, the present invention is of many uses, is not only applicable to the middle preface and the agglomeration cooling of sodium aluminate solution in the alumina producing, also is applicable to the use occasion of other solid-liquid two-phase flow welded type plate type heat exchangers simultaneously.
Description of drawings
Fig. 1 is the structural representation of prior art guiding device
Fig. 2 is the present invention " S " type river diversion apparatus preventing abrasion
Fig. 3 is the vertical view of Fig. 2
Fig. 4 is the present invention " U " type river diversion apparatus preventing abrasion
Fig. 5 is the vertical view of Fig. 4
The specific embodiment
Solid-liquid two-phase flow from system pipeline 6 is entered by suction flange 1, after " S " type or " U " type square-section buffering distributes passage 2 to obtain buffering to distribute, again through rectangular flange 3, enter by heat exchanger entrance 7 that runner 8 carries out heat exchange between the plate of fat pipe welded type plate type heat exchanger 9.Because buffering distributes the inlet of passage 2 to be provided with guide vane 4, solid-liquid two-phase flow distributes runner 8 between the plate that enters heat exchanger 9 after 4 again through guide vane when " S " type or " U " type buffering are distributed passage, makes between heat exchanger plate in the runner flow velocity even.Utilize solid-liquid two-phase flow flow field analysis technology and field experiment test, the feeder connection place carries out flow field analysis between the heat exchanger plate of back to improving, and the highest and flow velocity lowest part only differ 15%～25%; By optimizing the uniformity of heat exchanger entrance place velocity flow profile, slowed down the part abrasion of heat exchanger plate greatly, make the heat exchanger life-span improve 5～15 times.
Claims (3)
1. solid-liquid two-phase flow welded plate type heat exchanger river diversion apparatus preventing abrasion, comprise the suction flange (1) that is connected with system pipeline (6), the rectangular flange (3) that buffering is distributed passage (2) and is connected with heat exchanger entrance (7), it is characterized in that: described buffering distributes passage (2) to be " U " type or " S " type, and it is rectangle that buffering is distributed the cross section of passage (2).
2. solid-liquid two-phase flow welded plate type heat exchanger river diversion apparatus preventing abrasion according to claim 1, it is characterized in that: described " U " type or " S " type buffering distribute the porch of passage (2) to be provided with guide vane (4).
3. as solid-liquid two-phase flow welded plate type heat exchanger river diversion apparatus preventing abrasion as described in the claim 2, it is characterized in that: described guide vane (4) distributes passage (2) to become 7.5 °～15 ° angle with buffering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101049260A CN100404996C (en) | 2006-11-14 | 2006-11-14 | River diversion apparatus preventing abrasion for socket-welding and the plate type solid-liquid phase flow heat-exchangers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101049260A CN100404996C (en) | 2006-11-14 | 2006-11-14 | River diversion apparatus preventing abrasion for socket-welding and the plate type solid-liquid phase flow heat-exchangers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1952586A CN1952586A (en) | 2007-04-25 |
| CN100404996C true CN100404996C (en) | 2008-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101049260A Expired - Fee Related CN100404996C (en) | 2006-11-14 | 2006-11-14 | River diversion apparatus preventing abrasion for socket-welding and the plate type solid-liquid phase flow heat-exchangers |
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| Country | Link |
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| CN (1) | CN100404996C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226663A (en) * | 2011-04-21 | 2011-10-26 | 上海板换机械设备有限公司 | Abrasion-resistant flow guide device |
| CN107328678A (en) * | 2017-07-13 | 2017-11-07 | 浙江工业职业技术学院 | One kind rotation sieve valve antiscour and cavitation erosion verification platform |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2546523A1 (en) * | 1975-10-17 | 1977-04-28 | Ebner Apparate & Maschbau | Surface condenser return-pass tube plate - has sections accommodating return bend assemblies designed to accelerate and/or decelerate fluid flow |
| CN2126225U (en) * | 1992-01-23 | 1992-12-30 | 清华大学 | Abrasive-resistant bent tube used in gas-solid and liquid-solid two phase conveying system |
| CN2173661Y (en) * | 1993-12-08 | 1994-08-10 | 石油大学(华东) | Solid- or liquid-contg. gas separator |
| US6619331B1 (en) * | 2002-11-20 | 2003-09-16 | Jagan N. Suchdev | Water delivery tube assembly |
-
2006
- 2006-11-14 CN CNB2006101049260A patent/CN100404996C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2546523A1 (en) * | 1975-10-17 | 1977-04-28 | Ebner Apparate & Maschbau | Surface condenser return-pass tube plate - has sections accommodating return bend assemblies designed to accelerate and/or decelerate fluid flow |
| CN2126225U (en) * | 1992-01-23 | 1992-12-30 | 清华大学 | Abrasive-resistant bent tube used in gas-solid and liquid-solid two phase conveying system |
| CN2173661Y (en) * | 1993-12-08 | 1994-08-10 | 石油大学(华东) | Solid- or liquid-contg. gas separator |
| US6619331B1 (en) * | 2002-11-20 | 2003-09-16 | Jagan N. Suchdev | Water delivery tube assembly |
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| Publication number | Publication date |
|---|---|
| CN1952586A (en) | 2007-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Heat Transfer Equipment Co., Ltd. Assignor: Zhang Manli|He Hailan|Wang Xinyan|Li Deju Contract fulfillment period: 2009.4.10 to 2014.4.9 contract change Contract record no.: 2009310000081 Denomination of invention: River diversion apparatus preventing abrasion for socket-welding and the plate type solid-liquid phase flow heat-exchangers Granted publication date: 20080723 License type: Exclusive license Record date: 2009.6.5 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.4.10 TO 2014.4.9; CHANGE OF CONTRACT Name of requester: SHANGHAI BANHUAN MACHINERY EQUIPMENT CO.,LTD Effective date: 20090605 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20141114 |
|
| EXPY | Termination of patent right or utility model |