CN102109295B - Component and method for overcoming deposition of particles on horizontal pipeline of heat exchange equipment - Google Patents
Component and method for overcoming deposition of particles on horizontal pipeline of heat exchange equipment Download PDFInfo
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- CN102109295B CN102109295B CN 200910245134 CN200910245134A CN102109295B CN 102109295 B CN102109295 B CN 102109295B CN 200910245134 CN200910245134 CN 200910245134 CN 200910245134 A CN200910245134 A CN 200910245134A CN 102109295 B CN102109295 B CN 102109295B
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Abstract
The invention provides a component and a method for overcoming the deposition of particles on a horizontal pipeline of heat exchange equipment. Through mounting a component consisting of a washer and a guide blade in the horizontal pipeline of the heat exchange equipment, liquid and solid phases generates spiral flow when flowing across the guide blade by means of kinetic energy provided by the liquid and the solid phases flowing into the horizontal pipeline to overcome the deposition phenomenon generated under the gravity action when the particles flow in the horizontal pipeline. Meanwhile, with the adoption of the component, the scale prevention property, the descaling property and the heat exchange property of the heat exchange equipment are improved, and the cleaning frequency of the heat exchange equipment is reduced. The component can be widely applied to the field of energy sources, chemical industry, pharmacy, sea water desalination and the like.
Description
Technical field
The present invention relates to a kind of member and method that overcomes the horizontal pipeline particle deposition of heat transmission equipment, particularly a kind of vapor-liquid-solid three-phase flow bed heat-exchange system with horizontal pipeline belongs to the energy, chemical industry, pharmacy, desalinization field.
Background technology
Heat exchange is one of a kind of common unit operations, is widely used in the production process of the industries such as the energy, chemical industry, pharmacy, desalinization.In order to reduce the scaling rate of heat exchanger wall, and reach the purpose of augmentation of heat transfer, D.G.Klaren etc. join the inert solid particles such as glass or pottery in the heat transmission equipment, developed vapor-liquid-solid three-phase flow bed heat transmission equipment, because solid particle moves in heat exchanger tube, destroy the boundary layer of flowing, increased the nucleus of boiling, also strengthened simultaneously the shearing force of fluid to wall, destroyed temperature and CONCENTRATION DISTRIBUTION in the boundary layer, therefore, compared with common heat transmission equipment, the three phase fluidized bed heat transmission equipment has better anti-, scale removal and heat exchange property, and prolonged the cleaning frequency.Adopted a kind of internal-circulation type fluid bed with single down-comer on this heat transmission equipment pattern, its characteristics are: tube bank central authorities are provided with a down-comer, for separating of solid particle, and realize the circulation of solid particle in tube bank.But this structure composition also exists weak point, is that mainly the access way number of solid particle is different, and its structural asymmetry is brought the unstability of operation easily.J.St.Kollbach and R.Rautenbach improve the internal-circulation type fluidized bed heat exchanger equipment of single down-comer, have designed the internal-circulation type fluidized bed heat exchanger equipment with many down-comers.But the research of the internal circulating fluid bed heat transmission equipment such as Qi Shixue is found: the circulation of solid particle might not be by the central circulation loop of setting, although many down-comers can solve the fluctuation of service that the different caused asymmetry of access way number are brought in the single down-comer situation to a certain extent, but its device structure is all more complicated with the operation operation, and cost is also higher.To this, D.G.Klaren etc. have developed again a kind of outer circulation type fluidized bed heat exchanger equipment.Be partial to a side for fear of solid particle when heat transmission equipment is returned in outer circulation, adopted one section horizontal pipeline at external circulation line, solids enter heat transmission equipment by horizontal pipeline from the bottom inlet section with liquid.Obviously there is following advantage in this outer circulation type fluidized bed heat exchanger equipment than other version: 1. operate the flow velocity height, velocity interval is 1m/s～3m/s; 2. the interior solid particulate distributions of the heat-exchanging tube bundle that rises is more even; 3. easy operating.
Special requirement for some heat transfer process, the Wu Jinxiang of University Of Xiangtan etc. has developed a kind of horizontal type structure tubulation heat transmission equipment, the main structure of this heat transmission equipment is: two-tube-pass, tubulation is horizontally disposed, the inlet of angle mount division board, have the downstream chamber of solids separation and pooling function concurrently, suitably circulation pipe and the fluidisation inlet tube of height.During cleaning, add inert solid particle in the heat exchanger, adopt periodically fluidised form cleaning technique.Operation test shows, this equipment has stronger scale removal ability and heat-transfer effect preferably.
Outer circulation type fluidized bed heat exchanger equipment and the structural common ground of horizontal type structure tubulation heat transmission equipment are: all have horizontal pipeline, and liquid and particle two phase flow mistake are all arranged in the pipeline.Because Action of Gravity Field, particle tends to deposit to BOP in the bottom horizontal flow sheet process, this particle deposition, can make on the one hand that the pipeline circulation area diminishes, flow resistance increases, also can increase heat transmission resistance on the other hand, affect the heat exchange efficiency of whole system, also can cause simultaneously pipeline dirt layer thickness to increase.
Summary of the invention
The object of the invention is to, for the vapor-liquid-solid three-phase flow bed heat transmission equipment with horizontal pipeline provides a kind of member and method that overcomes horizontal pipeline particle deposition, anti-, the scale removal of enhanced heat exchange equipment and heat exchange property.
Purpose of the present invention realizes by following approach:
A kind of member that overcomes the horizontal pipeline particle deposition of heat transmission equipment, at least comprise: guide vane and packing ring, all guide vanes after the equal section of same axial line to welded together, keep flat segments along the axis direction end one side guide vane that becomes a mandarin, go out stream end one side guide vane and be twisted into certain angle, the end that becomes a mandarin is welded to connect with the packing ring inboard.
Described packing ring inner circle diameter d=D, D represents horizontal pipeline diameter, outside diameter D＜d
1＜D
1, D
1Represent horizontal pipeline flange hole center circle diameter, described guide vane total length L=(1～10) D, the guide vane number is 3～10, angle (being called the stator cornerite) α=(5～25) between leading edge (end becomes a mandarin) and the trailing edge (go out stream end) °, becoming a mandarin, to hold straight section level with both hands be X with going out stream end wreath piece length ratio
1/ X
2=(0.2～1): 1, guide vane height h=D/2-2.
Above-mentioned a kind of member that overcomes the horizontal pipeline particle deposition of heat transmission equipment is installed in the horizontal pipeline of heat transmission equipment, the kinetic energy that provides when relying on liquid fixed double phase flow to enter horizontal pipeline,, liquid-solid two-phase produces spiral flow during guide vane so that flowing through, the depositional phenomenon that produces because of Action of Gravity Field when overcoming particle and in horizontal tube, flow with this.
Described a kind of moving direction of member following current that overcomes the horizontal pipeline particle deposition of heat transmission equipment is arranged in the horizontal pipeline, the packing ring both sides fasten by the banjo clip on the horizontal pipeline, member installation group number determines according to horizontal pipeline total length, diameter, inside surface roughness and liquid-solid two-phase physical property etc., and first group of member installation site is apart from the distance L of particle entrance
0=(0.5～100) D, D represents horizontal pipeline diameter, the mounting distance L between the later two adjacent groups member
1=(0.5～1.0) H, H represent a damped cycle of liquid-solid two-phase spiral flow the distance of process.
The present invention compared with prior art exists obvious advantage to be:
(1) the horizontal pipeline of heat transmission equipment is without obvious particle deposition phenomenon, and liquid and particle are evenly distributed in horizontal pipeline; (2) flow through spiral flow that member produces of liquid-solid two-phase has been strengthened contacting between particle and tube wall, has improved anti-, scale removal and the heat exchange property of heat transmission equipment; (3) reduced the wash number of heat transmission equipment.
Description of drawings
Fig. 1 is the structural representation of the horizontal pipeline of heat transmission equipment in the embodiment of the invention;
Fig. 2 is a kind of structural representation that overcomes the horizontal pipeline particle deposition of heat transmission equipment member;
Fig. 3 is the contrast that solid holdup in the horizontal pipeline in member front and back that overcomes particle deposition has been installed in the embodiment of the invention.
The specific embodiment
Also describe by reference to the accompanying drawings the present invention in detail below by specific embodiment.
Accompanying drawing 1 is the structural representation of the horizontal pipeline of heat transmission equipment, and liquid and particle flow into from horizontal pipeline one end, flow out from the other end.The moving direction of following current has been installed two groups of members that overcome the horizontal pipeline particle deposition of heat transmission equipment in the horizontal pipeline of heat transmission equipment, the kinetic energy that provides when relying on liquid fixed double phase flow to enter horizontal pipeline,, liquid-solid two-phase produces spiral flow during member so that flowing through, the depositional phenomenon that produces because of Action of Gravity Field when overcoming particle and in horizontal tube, flow with this.
Accompanying drawing 2 is a kind of member that overcomes the horizontal pipeline particle deposition of heat transmission equipment, formed by guide vane and packing ring, all guide vanes after the equal section of same axial line to welded together, keep flat segments along the axis direction end one side guide vane that becomes a mandarin, go out stream end one side guide vane and be twisted into certain angle, the end that becomes a mandarin is welded to connect with the packing ring inboard.Packing ring inner circle diameter d=D, D represents horizontal pipeline diameter, outside diameter D＜d
1＜D
1, D
1Represent horizontal pipeline flange hole center circle diameter, the packing ring both sides of member fasten by the banjo clip on the horizontal pipeline, and first group of member installation site is apart from the distance L of particle entrance
0=55D, D represent horizontal pipeline diameter, the mounting distance L between first group and the second group of group member
1=9.5H, H represent a damped cycle of liquid-solid two-phase spiral flow the distance of process.Guide vane total length L=3D, guide vane number are 3, angle (being called the stator cornerite) α=20 between leading edge (end becomes a mandarin) and the trailing edge (go out stream end) °, and becoming a mandarin, to hold straight section level with both hands be X with going out stream end wreath piece length ratio
1/ X
2=0.6: 1, guide vane height h=D/2-2.
Accompanying drawing 3 overcomes the contrast that solid holdup distributes in the horizontal pipeline in particle deposition member front and back for installing, after installation overcame the member of particle deposition, pipeline bottom solid holdup reduced, and pipeline top solid holdup raises, the solid holdup distributing homogeneity improves on the whole pipe section, and the particle deposition tendency obviously weakens.
It should be noted that at last: above embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. member that overcomes the horizontal pipeline particle deposition of heat transmission equipment, at least comprise: guide vane and packing ring, all guide vanes are uniform rear to welded together along same axial line, keep flat segments along the axis direction end one side guide vane that becomes a mandarin, go out stream end one side guide vane and be twisted into certain angle, the end that becomes a mandarin is welded to connect with the packing ring inboard.
2. a kind of member that overcomes the horizontal pipeline particle deposition of heat transmission equipment according to claim 1, it is characterized in that: described packing ring inner circle diameter d=D, D represents horizontal pipeline diameter, outside diameter d
1, and D＜d
1＜D
1, D
1Represent horizontal pipeline flange hole center circle diameter, described guide vane total length L=(1～10) D, the guide vane number is 3～10, end and go out angle α=(5～25) ° between the stream end becomes a mandarin, become a mandarin to hold straight section level with both hands and go out stream end wreath piece length ratio and be (0.2～1): 1, guide vane height h=D/2-2.
3. method that overcomes the horizontal pipeline particle deposition of heat transmission equipment, it is characterized in that: a kind of member that overcomes the horizontal pipeline particle deposition of heat transmission equipment as claimed in claim 1 or 2 is installed in the horizontal pipeline of heat transmission equipment, the kinetic energy that provides when relying on liquid fixed double phase flow to enter horizontal pipeline,, liquid-solid two-phase produces spiral flow during guide vane so that flowing through, the depositional phenomenon that produces because of Action of Gravity Field when overcoming particle and in horizontal tube, flow with this.
4. a kind of method that overcomes the horizontal pipeline particle deposition of heat transmission equipment according to claim 3, it is characterized in that: described a kind of moving direction of member following current that overcomes the horizontal pipeline particle deposition of heat transmission equipment is arranged in the horizontal pipeline, the packing ring both sides fasten by the banjo clip on the horizontal pipeline, member installation group number determines according to horizontal pipeline total length, diameter, inside surface roughness and liquid-solid two-phase physical property, and first group of member installation site is apart from the distance L of particle entrance
0=(0.5～100) D, D represents horizontal pipeline diameter, the mounting distance L between the later two adjacent groups member
1=(0.5～1.0) H, H represent a damped cycle of liquid-solid two-phase spiral flow the distance of process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910245134 CN102109295B (en) | 2009-12-28 | 2009-12-28 | Component and method for overcoming deposition of particles on horizontal pipeline of heat exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910245134 CN102109295B (en) | 2009-12-28 | 2009-12-28 | Component and method for overcoming deposition of particles on horizontal pipeline of heat exchange equipment |
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| Publication Number | Publication Date |
|---|---|
| CN102109295A CN102109295A (en) | 2011-06-29 |
| CN102109295B true CN102109295B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910245134 Expired - Fee Related CN102109295B (en) | 2009-12-28 | 2009-12-28 | Component and method for overcoming deposition of particles on horizontal pipeline of heat exchange equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109692496A (en) * | 2017-10-20 | 2019-04-30 | 中国石油化工股份有限公司 | Strengthen the method for fluidisation heat transfer crystallization |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB455667A (en) * | 1935-08-06 | 1936-10-26 | Carbondale Machine Corp | Helical conveyor or scraper particularly applicable for use in apparatus for congealing liquids |
| CN2273844Y (en) * | 1995-11-14 | 1998-02-04 | 王传荣 | Corrugated turbulent flow type heat-exchanger |
| CN1260469A (en) * | 1998-09-16 | 2000-07-19 | 中国石油化工集团公司 | Heat exchange pipe and its manufacture method and application |
| CN1635329A (en) * | 2004-12-31 | 2005-07-06 | 山东华鲁恒升化工股份有限公司 | Laminar flow proof heat exchanger |
| CN2921766Y (en) * | 2006-05-29 | 2007-07-11 | 吉永平 | Automatic stains-cleaning and intensified heat exchanger for steam turbine condenser |
| CN201145518Y (en) * | 2006-12-25 | 2008-11-05 | 张贵祥 | Self-transformation fluid state cleaning reinforced heat exchanger |
-
2009
- 2009-12-28 CN CN 200910245134 patent/CN102109295B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB455667A (en) * | 1935-08-06 | 1936-10-26 | Carbondale Machine Corp | Helical conveyor or scraper particularly applicable for use in apparatus for congealing liquids |
| CN2273844Y (en) * | 1995-11-14 | 1998-02-04 | 王传荣 | Corrugated turbulent flow type heat-exchanger |
| CN1260469A (en) * | 1998-09-16 | 2000-07-19 | 中国石油化工集团公司 | Heat exchange pipe and its manufacture method and application |
| CN1635329A (en) * | 2004-12-31 | 2005-07-06 | 山东华鲁恒升化工股份有限公司 | Laminar flow proof heat exchanger |
| CN2921766Y (en) * | 2006-05-29 | 2007-07-11 | 吉永平 | Automatic stains-cleaning and intensified heat exchanger for steam turbine condenser |
| CN201145518Y (en) * | 2006-12-25 | 2008-11-05 | 张贵祥 | Self-transformation fluid state cleaning reinforced heat exchanger |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平5-203286A 1993.08.10 |
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| CN102109295A (en) | 2011-06-29 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 300130, Hebei University of Technology, 8 glorious road, Hongqiao, Tianjin Applicant after: Hebei University of Technology Applicant after: Tianjin Caizhiju Purification Engineering Co., Ltd. Applicant after: Tianjin Juxian Technology Research Development Center Address before: 300273 China Private Economic Zone, Binhai New Area, Tianjin Applicant before: Tianjin Caizhiju Purification Engineering Co., Ltd. Applicant before: Hebei University of Technology Applicant before: Tianjin Juxian Technology Research Development Center |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: TIANJIN CAIZHIJU PURIFICATION ENGINEERING CO., LTD. TO: HEBEI UNIVERSITY OF TECHNOLOGY |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20161228 |