CN102679772B - Tube plate type heat exchanger - Google Patents
Tube plate type heat exchanger Download PDFInfo
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- CN102679772B CN102679772B CN201210197965.5A CN201210197965A CN102679772B CN 102679772 B CN102679772 B CN 102679772B CN 201210197965 A CN201210197965 A CN 201210197965A CN 102679772 B CN102679772 B CN 102679772B
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Abstract
The invention discloses a tube plate type heat exchanger which comprises a shell, a tube box with a fluid inlet, a tube plate and a heat exchange tube bundle, wherein the tube box comprises a connecting section, a bent tube section and a diameter-changing section; the connecting section is connected with one end part of the shell; the fluid inlet is formed at one end of the bent tube section; the other end of the bent tube section is communicated with the connecting section through the diameter-changing section; the inner diameter of the diameter-changing section is gradually increased along the flow direction of the fluid; and the heat exchanger also comprises a rectifying plate which is vertically arranged in the connecting section. According to the tube plate type heat exchanger, the tube box is designed in a structural form of the bent tube section added with diameter-changing section and the connecting section, the fluid inlet is located at one end of the bent tube, and the fluid turning space is reduced by the tube box with the structure. Besides, the rectifying plate is arranged in the connecting section of the tube box, the state of the fluid is carded before the fluid enters into the heat exchange tube, the fluid uniformly enters into the heat exchange tube, and the fluid turning problem is thoroughly solved. Thus, the abrasion of the tube plate type heat exchanger provided by the invention is greatly reduced, the running maintenance cost of equipment is reduced, the running reliability of the equipment is increased and the service life is prolonged.
Description
Technical field
the present invention relates to a kind of tube-sheet heat exchanger, it is specially adapted to Coal Chemical Industry industry and lime cement industry.
Background technology
coal Chemical Industry refers to take coal as raw material, through chemical process, makes coal be converted into the process of gas, liquid and solid fuel and chemicals, and it mainly comprises coal gasification, liquefaction, destructive distillation, and tar processing and carbide acetylene chemical industry etc.In the process of coal gasification, having a large amount of ash contents produces, although through the separation of separator and the washing of scrubbing tower, but ash content more or less remains existence in the equipment the inside of previous reaction zone, this causes very large infringement just to the life-span of the heat exchanger in reaction zone equipment, particularly equipment.As shown in Figure 1, in prior art, the heat exchanger that Coal Chemical Industry industry is used (being commonly called as Heisui River heat exchanger) mainly comprise housing (1 '), be connected with housing (1 ') end and have fluid intake (20 ') bobbin carriage (2 '), be arranged on the baffle plate (3 ') in bobbin carriage (2 '), tube sheet (4 '), the two ends that are fixedly installed on housing (1 ') are fixed on the heat exchanger tube tube bank (5 ') on described tube sheet (4 ').During use, by allowing the fluid that contains ash content walk tube side, in practice, find following problem: 1) fluid intake is all on bobbin carriage cylindrical shell or on end socket, the fluid direction of coming all will change, fluid deflects disorderly and unsystematic before tube sheet, cause eddy current wearing and tearing to the weld seam of tube head on tube sheet and tube sheet, also bring wearing and tearing to a minute journey baffle plate; 2) when Tube-sheet Welding due to welding deformation, tube sheet indent, baffle plate cannot compress with tube sheet and baffle plate backing plate, causes fluid to alter this gap and also can cause serious wearing and tearing; 3) if allow the fluid that contains ash content walk shell side, wear and tear still like this; 4) owing to carrying ash content in fluid, thus the flow velocity of fluid to be controlled within the scope of one, flow velocity high serious wear, flow velocity is low, and ash-deposition is serious, heat transfer effect declines, even part heat exchanger tube is blocked.Therefore, the maintenance of equipment cost of existing common heat exchanger structure is high, and to equipment, operation exists huge potential safety hazard, cannot meet the needs that Coal Chemical Industry is produced.
Summary of the invention
technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of improved tube-sheet heat exchanger is provided.
for solving above technical problem, the present invention takes following technical scheme:
a kind of tube-sheet heat exchanger, it comprises housing, have the bobbin carriage of fluid intake, tube sheet, heat exchanger tube tube bank, wherein bobbin carriage comprises that linkage section, one end of being connected with an end of housing form the bend loss of fluid intake, the reducer that the other end of bend loss is communicated with linkage section, the internal diameter of described reducer becomes greatly gradually along the flow direction of fluid, and described heat exchanger also comprises the cowling panel being uprightly arranged in linkage section.
according to a preferred aspect of the present invention, described cowling panel is uprightly arranged on the intersection of reducer and linkage section.Cowling panel can adopt for example porous web plate of conventional version.Intersection at reducer and linkage section is established cowling panel, can make the fluid that enters heat exchanger tube by farthest combing, thereby guarantee that fluid enters the uniformity of heat exchanger tube, thoroughly solves fluid turning problem.
according to further embodiment of the present invention: heat exchanger also comprise be arranged on tube sheet towards the abrasion proof ceramic wafer on the end of cowling panel, described this abrasion proof ceramic wafer is provided with the mozzle of linkage section and heat exchanger tube conducting at each heat exchanger tube place of corresponding heat exchanger tube tube bank, by abrasion proof ceramic wafer, bear the impact from linkage section fluid, solve the wearing and tearing of fluid to tube sheet, extended the service life of tube sheet; Again by by mozzle with by being communicated with of the linkage section of bobbin carriage and heat exchanger tube, be conducive to further to reduce fluid to tube sheet and with the wearing and tearing of tube head weld.
preferably, between abrasion proof ceramic wafer and tube sheet, be provided with silica gel liner, abrasion proof ceramic wafer, silica gel liner and tube sheet are threaded connection part and connect, wherein adopt silica gel liner, mainly reduce the gap between abrasion proof ceramic wafer and tube sheet, and then reduce fluid channelling to the gap between abrasion proof ceramic wafer and tube sheet, and the wearing and tearing that bring tube sheet.
heat exchanger also comprises the rotation turbolator in each heat exchanger tube that can be arranged on rotationally heat exchanger tube tube bank according to a further preferred aspect of the invention,, and it rotates turbolator and clears up on the one hand ash-deposition augmentation of heat transfer, improves heat transfer effect; Controlled on the other hand the flow velocity of fluid, the flow velocity that solved fluid the flow velocity too high and serious wear that causes and fluid is too low and cause ash content to be detained or stop up heat exchanger tube pore.
according to a concrete aspect, rotate turbolator and comprise and be horizontally set in heat exchanger tube and the rotating shaft that can rotate around Pivot Point Center line and the helix that is fixed in rotating shaft and extends along the length direction of rotating shaft.Gap between the rotary motion trace of helix and heat exchanger tube inwall is 0.8 ~ 1.5mm.Rotating shaft and helix can form by polytetrafluoroethylene (PTFE) is integrated poured, or form with alloy in lightweight rolling.Helix thickness is advisable with 0.2～0.3mm.Rotating shaft is φ 6 ~ φ 8 mm.
due to the enforcement of above technical scheme, the present invention compared with prior art tool has the following advantages:
the present invention is designed to bend pipe by bobbin carriage and adds the version that reducer adds linkage section, and fluid intake is positioned at one end of bend pipe, and the bobbin carriage of this structure can shorten the space of fluid upset; In addition, in bobbin carriage linkage section, establish cowling panel, fluid state before entering heat exchanger tube is obtained after combing, enter equably heat exchanger tube, thoroughly solve fluid turning problem.Therefore, the wearing and tearing of heat exchanger of the present invention significantly reduce, and the maintenance cost of equipment operation reduces, and equipment operational reliability increases, and extend service life.
Accompanying drawing explanation
below in conjunction with accompanying drawing and concrete embodiment, the present invention will be further described in detail.
fig. 1 is for the structural representation of the heat exchanger of Coal Chemical Industry in prior art;
fig. 2 is the main structure schematic diagram according to tube-sheet heat exchanger of the present invention;
fig. 3 is the side-looking enlarged diagram of cowling panel in Fig. 2;
fig. 4 is the broken section enlarged diagram of Fig. 2;
fig. 5 is the schematic side view of Fig. 4;
wherein: 1,1 ', housing; 2,2 ', bobbin carriage; 20,20 ', fluid intake; 21, linkage section; 22, elbow section; 23, reducer; 3,4 ', tube sheet; 4, cowling panel; 40, rectification hole; 5, abrasion proof ceramic wafer; 6, heat exchanger tube; 7, mozzle; 8, silica gel liner; 9, threaded connector; 10, rotate turbolator; 100, rotating shaft; 101, helix; 102, positioning end; 3 ', baffle plate; 5 ', heat exchanger tube tube bank.
The specific embodiment
as shown in Figures 2 to 5, the tube-sheet heat exchanger of the present embodiment mainly comprises that housing 1, bobbin carriage 2, tube sheet 3, the heat exchanger tube consisting of a plurality of heat exchanger tubes arranged side by side 6 restrain.Bobbin carriage 2 is divided into linkage section 21, bend loss 22 and reducer 23 3 parts that connect successively, being connected with housing 1 one ends of its middle connecting segment 21, one end of bend loss 22 is provided with fluid intake 20, the two ends of reducer 23 are connected with linkage section 21 and bend loss 22 respectively, and particularly the internal diameter of reducer 23 becomes large gradually along the flow direction of fluid.Heat exchanger also comprises the cowling panel 4 being uprightly arranged in linkage section 21, on its cowling panel 4, be provided with uniformly a plurality of rectification hole 40, in order to improve the effect of combing, cowling panel 4 is stood upright on to the intersection of reducer 23 and linkage section 21, can make the fluid that enters heat exchanger tube 6 by farthest combing, thereby guarantee that fluid enters the uniformity of heat exchanger tube 6, thoroughly solve fluid upset and the rambling situation of fluid flow state, improved the flow regime of fluid.
in this example, heat exchanger also comprise be arranged on tube sheet 3 towards the abrasion proof ceramic wafer 5 on the end of cowling panel 4, for the threaded connector 9 of fixing abrasion proof ceramic wafer 5 and tube sheet 3 and be filled in the fixedly silica gel liner 8 between abrasion proof ceramic wafer 5 and tube sheet 3, wherein abrasion proof ceramic wafer 5 is provided with the mozzle 7 with heat exchanger tube 6 conductings by linkage section 21 at each heat exchanger tube 6 places of corresponding heat exchanger tube tube bank, by abrasion proof ceramic wafer 5, bear the impact from linkage section 21 fluids, solve the wearing and tearing of fluid to tube sheet 3, extended the service life of tube sheet 3, again by the connection of mozzle 7 and heat exchanger tube 6, further reduce the directly wearing and tearing to tube sheet 3 and tube head weld of fluid.In addition, between abrasion proof ceramic wafer 5 and tube sheet 3, being provided with silica gel liner 8, is mainly the gap reducing between abrasion proof ceramic wafer 5 and tube sheet 3, and then reduces fluid channelling to the gap between abrasion proof ceramic wafer 5 and tube sheet 3, and the wearing and tearing that bring tube sheet 3.
as shown in Figure 4 and Figure 5, the heat exchanger in this example, except said structure, in each heat exchanger tube 6 of heat exchanger tube tube bank, is provided with the rotation turbolator 10 that can rotate, and it rotates turbolator 10 and clears up on the one hand ash-deposition augmentation of heat transfer, improves heat transfer effect; Controlled on the other hand the flow velocity of fluid, the flow velocity that solved fluid the flow velocity too high and serious wear that causes and fluid is too low and cause ash content to be detained or stop up heat exchanger tube 6 pores.Rotating turbolator 10 comprises along being horizontally set in heat exchanger tube 6 and the rotating shaft 100 that can rotate around Pivot Point Center line and the helix 101 that is fixed in rotating shaft 100 and extends along the length direction of rotating shaft 100, its shaft 100 and helix 101 can form by polytetrafluoroethylene (PTFE) is integrated poured, or with alloy in lightweight rolling, form, the two ends of rotating shaft 100 are rotated respectively the abrasion proof ceramic wafer 5 at the fluid inflow entrance place that is arranged on heat exchanger tube 6 and are arranged on the turbolator positioning end 102 of fluid outlet of heat exchanger tube 6.Therefore, in order to improve the heat transfer effect of heat exchanger and to reduce the wearing and tearing in heat exchanger tube 6, gap between the rotary motion trace of helix 101 and heat exchanger tube 6 inwalls is 0.8 ~ 1.5mm, and helix thickness is that 0.2 ~ 0.3mm is best, simultaneously according to the demand of heat exchange, the length of heat exchanger tube 6 is difficult for long, extended the flowing time of fluid and slowed down the flow velocity in heat exchanger tube 6 inner fluids, directly affect heat-transfer effect and grey fractional precipitation and stop up heat exchanger tube 6 pores, therefore it is more suitable that the length of heat exchanger tube 6 is less than 5m, in addition, the diameter of rotating shaft 100 is that 6 ~ 8 mm are more suitable.
in sum, the heat exchanger of the present embodiment and heat exchanger of the prior art relatively have the following advantages:
(1), the heat exchanger of the present embodiment adopts the bobbin carriage of the elbow section, reducer and the linkage section that connect successively, reduced the space of fluid upset, reduced the wearing and tearing that fluid upset brings;
(2), the heat exchanger of the present embodiment has adopted cowling panel and abrasion proof ceramic wafer, shunting by cowling panel, the combing fluid flow state that fluid is tried one's best before entering heat exchanger tube, and then make the heat exchanger tube that enters of fluid well-distributing, thoroughly solve fluid upset and the rambling situation of fluid flow state, improved the flow regime of fluid, thereby reduce the wearing and tearing of tube sheet, simultaneously according to the performance of abrasion proof ceramic wafer, by abrasion proof ceramic wafer, bear fluid impact tube sheet and the wearing and tearing that cause, solved the wearing and tearing of fluid to tube sheet and heat exchanger tube and Tube-sheet Welding place;
(3), the heat exchanger of the present embodiment is set up rotation turbolator in heat exchanger tube, by rotating the rotating shaft of turbolator and the rotation that helix forms rotary body, control fluid by the flow velocity in heat exchanger tube, reduced the obstruction that the precipitation of the slow ash content of flow velocity causes, reduced again the brinelling that the excessive velocities of fluid by heat exchanger tube causes, one side is cleared up ash-deposition, and an augmentation of heat transfer has improved the heat transfer effect of heat exchanger.Therefore, the wearing and tearing of heat exchanger of the present invention significantly reduce, and the maintenance cost of equipment operation reduces, and equipment operational reliability increases, and extend service life.
above the present invention is described in detail, but the invention is not restricted to the embodiments described.The equivalence that all Spirit Essences according to the present invention are done changes or modifies, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. a tube-sheet heat exchanger, it comprises housing (1), the bobbin carriage (2) with fluid intake (20), tube sheet (3), heat exchanger tube tube bank, it is characterized in that: described bobbin carriage (2) comprises the linkage section (21) being connected with an end of described housing (1), one end forms the bend loss (22) of described fluid intake (20), the reducer (23) that the other end of described bend loss (22) is communicated with described linkage section (21), the internal diameter of described reducer (23) becomes large gradually along the flow direction of described fluid, described heat exchanger also comprises the cowling panel (4) that is uprightly arranged on described reducer (23) and described linkage section (21) intersection, be arranged on described tube sheet (3) towards the abrasion proof ceramic wafer (5) on the end of described cowling panel (4), and the abrasion proof ceramic wafer (5) described in being arranged on and the silica gel liner (8) between described tube sheet (3), described abrasion proof ceramic wafer (5) locates to be provided with by described linkage section (21) mozzle (7) with described heat exchanger tube (6) conducting at each heat exchanger tube (6) of the described heat exchanger tube tube bank of correspondence, described abrasion proof ceramic wafer (5), silica gel liner (8) and tube sheet (3) are threaded connection part (9) and connect, described heat exchanger also comprises the rotation turbolator (10) in each heat exchanger tube (6) that can be arranged on rotationally described heat exchanger tube tube bank, described rotation turbolator (10) comprises and is horizontally set in described heat exchanger tube (6) and the rotating shaft (100) that can rotate around Pivot Point Center line and be fixed on described rotating shaft (100) helix (101) upper and that extend along the length direction of described rotating shaft (100), described rotating shaft (100) and described helix (101) form by polytetrafluoroethylene (PTFE) is integrated poured, or form with alloy in lightweight rolling.
2. tube-sheet heat exchanger according to claim 1, is characterized in that: the gap between the rotary motion trace of described helix (101) and described heat exchanger tube (6) inwall is 0.8 ~ 1.5mm.
3. tube-sheet heat exchanger according to claim 1 and 2, is characterized in that: the thickness of described helix (101) is 0.2 ~ 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197965.5A CN102679772B (en) | 2012-06-15 | 2012-06-15 | Tube plate type heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210197965.5A CN102679772B (en) | 2012-06-15 | 2012-06-15 | Tube plate type heat exchanger |
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| CN102679772A CN102679772A (en) | 2012-09-19 |
| CN102679772B true CN102679772B (en) | 2014-03-26 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104154795B (en) * | 2013-12-06 | 2017-01-18 | 北京大学包头创新研究院 | Heat exchange tube and heat exchanger comprising same |
| CN104121568B (en) * | 2014-07-30 | 2015-12-09 | 苏州天沃科技股份有限公司 | High-temperature tail gas heat exchanger |
| CN104729081A (en) * | 2015-03-23 | 2015-06-24 | 张家港市江南锅炉压力容器有限公司 | Energy-saving type hot blast stove |
| CA3012816C (en) * | 2016-02-17 | 2020-08-18 | Ihi Corporation | Heat treatment apparatus |
| CN107255283B (en) * | 2017-07-17 | 2019-04-30 | 烟台国新环保科技有限公司 | A kind of superheater for industrial burning boiler |
| CN109033514B (en) * | 2018-06-15 | 2023-04-28 | 上海电气电站设备有限公司 | Method for evaluating elastic instability of plane tube bundle fluid |
| CN110822469A (en) * | 2019-11-18 | 2020-02-21 | 山东禹王生态食业有限公司 | Method and device for preheating air entering furnace |
| CN113804040A (en) * | 2021-10-19 | 2021-12-17 | 陈建涛 | Novel choke pipe structure |
| CN115388687A (en) * | 2022-10-31 | 2022-11-25 | 中国核动力研究设计院 | Heat exchange device and Brayton cycle system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB653540A (en) * | 1947-07-02 | 1951-05-16 | Comb Eng Superheater Inc | Improvements in steam boilers and like heat exchangers |
| CN2101210U (en) * | 1991-09-24 | 1992-04-08 | 上海船用柴油机研究所 | High-efficient low resistant heat exchanger |
| CN201196539Y (en) * | 2008-03-28 | 2009-02-18 | 中国石油化工股份有限公司 | L-shaped triple heat exchanger structure |
| CN201462895U (en) * | 2009-07-01 | 2010-05-12 | 四平市东海石化设备制造有限公司 | Antiseptic wearable air pre-heater |
| CN102022719A (en) * | 2010-11-12 | 2011-04-20 | 杭州锅炉集团股份有限公司 | Water supply rectifying device of high-pressure heater |
| CN202630744U (en) * | 2012-06-15 | 2012-12-26 | 张家港市江南锅炉压力容器有限公司 | Tube plate type heat exchanger |
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Address after: 215635 No. 139 Gangfeng Road, Yangtze River International Chemical Industrial Park, Zhangjiagang, Suzhou, Jiangsu Patentee after: Jiangsu Jiangguo Intelligent Equipment Co.,Ltd. Address before: 215635 No. 139 Gangfeng Road, Yangtze River International Chemical Industrial Park, Zhangjiagang, Suzhou, Jiangsu Patentee before: Jiangnan Boilers & Pressure Vessels (Zhangjiagang) Co.,Ltd. |
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