CN201016589Y - Shell-and-tube steam-water heat exchanger - Google Patents
Shell-and-tube steam-water heat exchanger Download PDFInfo
- Publication number
- CN201016589Y CN201016589Y CNU2006201534172U CN200620153417U CN201016589Y CN 201016589 Y CN201016589 Y CN 201016589Y CN U2006201534172 U CNU2006201534172 U CN U2006201534172U CN 200620153417 U CN200620153417 U CN 200620153417U CN 201016589 Y CN201016589 Y CN 201016589Y
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- heat exchanger
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Abstract
The utility model discloses a shell and tube type steam heat exchanger, including a shell, a steam inlet, a condensed water outlet and a pipe bundle. The shell is provided with a plurality of support plates for dividing the pipe bundle area into several heat exchanging areas and the support plate is arranged on the same side of a lumen. The inner side of a steam inlet pipe is provided with a steam anti-shock plate and the steam anti-shock plate is welded on the shell and the steam inlet pipe through a rectangular reinforced plate and a ladder-shaped reinforced plate. The narrow edge of the ladder-shaped reinforced plate is welded on the inner side of the steam inlet pipe and the inclined shoulder on the wide edge is welded on the shell, which is connected with the steam inlet pipe. The utility model with advantages of shock resistance and large steam channel eliminates the concentrated heat shock of steam on partial area of the pipe bundle. Practice proves that the technology obviously increases the service life of the pipe bundle and reduces the noises caused by steam flow under the conditions of high temperature (t is less than or equal to 300 degrees), high pressure (p is less than or equal to 4 MPa) and super-large shell and tube nodal steam heat exchanger.
Description
One, technical field
The utility model belongs to technical field of heat exchange, is specifically related to a kind of shell-and-tube steam and water heat exchanger.
Two, background technology
Existing shell-and-tube steam and water heat exchanger, the support of its tube bank and the flow direction of steam are all recommended according to professional book in engineering design, adopt deflection plate, force steam baffling augmentation of heat transfer between tube bank repeatedly.Such structure has caused the tube bank of steam offside to afford the thermal shock of steam full-power, makes to produce vibrations and wearing and tearing between tube bank and deflection plate, and the part tube bank of steam offside is damaged in advance.Shell-and-tube steam and water heat exchanger is equipped with the steam impingement baffle at the steam inlet place, is not subjected to the direct impact of steam in order to the protection tube bank.The design of impingement baffle is varied, and what often adopt be circular impingement baffle, with three or four gussets impingement baffle is welded with housing to be connected; Perhaps adopt the rectangle impingement baffle that folding is direct and shell welds on the dual-side.The latter's advantage is simple in structure, installs easily; Shortcoming be passage only along housing shaft to (not having circumferential passageway), when size design is bad, very easily produce whistle.The advantage of circular impingement baffle is that steam channel is free from worry under correct spacing design, guarantees that the steam fluency is good; Shortcoming is to align comparatively difficulty.Present this structure is comparatively popular.The circular impingement baffle in later stage has improved the problem that aligns of installing, four gussets of the impingement baffle that combines are put in the steam inlet pipe from the bottom after, just can align.That is: just can be close to housing carrying the back impingement baffle on it, this moment, housing had the space of bigger circular section, was convenient to install tube bank.Again impingement baffle put down, treat that upwards carrying 10～20mm (very easily guaranteeing the spacing of impingement baffle and shell) again after impingement baffle is near tube bank just can carry out impingement baffle and housing assembly welding thereafter.Obvious this structure has kept the advantage of circular impingement baffle to have characteristics easy for installation again.But the splash that produces during the impingement baffle welding can tumble in the tube bank, and the tendency of the tube bank of scalding is arranged.Facts have proved that the stainless steel tube bank that some heat exchangers are arranged is exactly at first to be damaged by scalding the some place.
Three, summary of the invention
The utility model purpose provides a kind of shell-and-tube waved tube heat exchanger, can (p≤4MPa) and avoid under the ultra-large type shell-and-tube steam and water heat exchanger condition and reduce the impact of steam to tube bank improves the life-span of tube bank greatly and reduces the noise that vapor stream causes at high temperature (t≤300 ℃), high pressure.Simultaneously, the utility model can prevent the possibility of welding procedure scald tube bank effectively by the characteristics of structure itself.
The technical solution adopted in the utility model is: shell-and-tube steam and water heat exchanger comprises shell, steam inlet, condensate water outlet and tube bank, has a plurality of gripper shoes will restrain the differentiation lattice in shell and becomes several heat exchange zones, and gripper shoe is positioned at the same side of tube chamber.
In steam inlet pipe inboard the steam impingement baffle is arranged, the steam impingement baffle is welded on shell and the steam inlet pipe by stairstepping gusset and rectangle gusset, the narrow side weld of stairstepping gusset is connected on steam inlet pipe inboard, and the oblique shoulder of its broadside is welded on the shell place that is connected with the steam inlet pipe.This structure has solved job site assemble sequence problem, scalds the disadvantage of restraining thereby solved the spatter thing.Not before this structure, all below the steam pipe import, place impingement baffle in the construction in advance and wouldn't hang in the indentation steam pipe with the housing assembly welding and be hung in the steam pipe bottom and float, wait to restrain assembling and finish again to determine behind the position of impingement baffle assembly welding impingement baffle again according to the space between tube bank and the steam inlet.Though such assemble sequence is more convenient, the spatter thing is usually scalded the tube bank surface in the welding, tube bank is damaged the influence tube bank life-span.The utility model structure is owing to have individual step just to determine impingement baffle not to be retracted in the steam inlet on the stairstepping gusset, thereby construction the time must enter the interior first assembly welding impingement baffle of housing, could assemble tube bank then, and this has just solved the assembling sequence problem from structure.And do not need artificially to retrain sequence of construction.The utility model structure has shock resistance, characteristics that steam channel is big.The size of impingement baffle and plate shell spacing are determined by impingement baffle physical dimension computational methods.
Be directed to the vapor-water heat exchanger of baffle arrangement, the utility model is given heat and the irrelevant characteristics of steam flow rate according to the steam condensation, adopts gripper shoe, lattice is distinguished in steam and tube bank become several heat exchange zones, does not need steam baffling repeatedly.Thereby eliminated the steam concentrated area to the thermal shock of tube bank regional area towards problem.Facts have proved that this technology is at high temperature (t≤300 ℃), high pressure (p≤4MPa) and improved the life-span of tube bank under the ultra-large type shell-and-tube bellows tube vapor-water heat exchanger condition significantly and reduced the noise that vapor stream causes.
Four, description of drawings
Fig. 1 is a steam impingement baffle structural representation of the present utility model;
Fig. 2 is the structural representation of the vapor-water heat exchanger of baffle arrangement;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 lacks the structural representation of shape gripper shoe for circle;
Fig. 5 is the structural representation that last breach circle lacks the shape gripper shoe;
Fig. 6 is the structural representation that upper and lower breach circle lacks the shape gripper shoe.
Five, the specific embodiment
Shell-and-tube steam and water heat exchanger comprises shell 4, steam inlet tube 5, condensate water outlet 6 and restrains 7.The deflection plate 8 that the utility model adopts gripper shoe 9 to replace in the common heat exchanger.Have a plurality of gripper shoes 9 will restrain district's 11 lattices in shell 4 and become several heat exchange zones, gripper shoe 9 is positioned at the same side of tube chamber.In the embodiment, gripper shoe 9 has following several types:
Circle lacks type gripper shoe 9-1.This gripper shoe top does not have breach (promptly not having ad hoc steam channel), and steam and condensate water all circulate in the side.It is symmetrical set, and is installed on the bottom of vertical heat exchanger, is used to stop that steam directly is flushed to the bottom of vertical heat exchanger by the heat exchanger top, hits to avoid that vapour takes place.The distance of gripper shoe vertical centre line-spacing gripper shoe straight line is 1～6 times of tube pitch.Excessive carbonated drink flowing, the too small then gripper shoe laying state instability of influencing of this value.
Last breach type gripper shoe 9-2.Last breach type gripper shoe 9-2 also is that circle lacks shape, and its upper notch is a steam channel, and the side is steam water interface (steam and condensate water) passage, is used to restrain the field of heat exchangers under the asymmetric situation of arranging.Characteristics are that tube bank is non-equidistant support, and gripper shoe weight is lighter.The straight line distance of the vertical centre line-spacing gripper shoe of gripper shoe is got 1～6 times of tube pitch.Its value hour installation gripper shoe is comparatively difficult, when big, under the horizontal heat exchanger situation, can improve the condensate water liquid level, has reduced the heat exchange area of condensing zone.
Two breach type gripper shoe 9-3.Its upper notch is a steam channel, and down gap is a condensed water passage.Be used to restrain the horizontal heat exchanger field of symmetry arrangement.Its characteristics are tube bundle support evenly (equidistant support), and the gripper shoe quantity that needs is few.Its upper and lower breach to the distance of gripper shoe center line can be by calculating.
In steam inlet pipe 5 inboards steam impingement baffle 3 is arranged, steam impingement baffle 3 is welded on shell 4 and the steam inlet pipe 5 by stairstepping gusset 1 (by rectangle and trapezoidal combination) and rectangle gusset 2 (by two rectangle combinations), the narrow side weld of stairstepping gusset 1 is connected on steam inlet pipe 5 inboards, and the oblique shoulder of its broadside is welded on shell 4 places that are connected with steam inlet pipe 5.
The course of work of shell-and-tube steam and water ripple heat exchanger is: high temperature, high steam enter heat exchanger shell 4 by steam inlet tube 5 high speeds (40～50 meter per second), through impingement baffle 3 in housing rapidly to around the diffusion, 9 uniform distributions of process gripper shoe are to each condensing zone, flow velocity is reduced to below 10 meter per seconds, again by 2～4 row's heat exchanger tubes, flow velocity is reduced to lower, pass through the powerful condensing heat-exchange ability of bellows tube at last, evenly be adsorbed onto whole cloth area under control, emit and condense into condensed water 10 behind the heat and discharge through condensate water outlet 6.
Claims (5)
1. shell-and-tube steam and water heat exchanger, comprise shell (4), steam inlet tube (5), condensate water outlet (6) and tube bank (7), it is characterized in that: have a plurality of gripper shoes (9) will restrain district (11) lattice in shell (4) and become several heat exchange zones, gripper shoe (9) is positioned at the same side of tube chamber.
2. shell-and-tube waved tube heat exchanger according to claim 1 is characterized in that: gripper shoe (9) lacks shape for circle, and its center to the distance of its straight line is 1～6 times of tube pitch.
3. shell-and-tube waved tube heat exchanger according to claim 1 is characterized in that: gripper shoe (9) lacks shape for the circle of top breach, and its center to the distance of its straight line is 1～6 times of tube pitch.
4. shell-and-tube waved tube heat exchanger according to claim 1 is characterized in that: gripper shoe (9) lacks shape for the circle of upper and lower breach.
5. shell-and-tube waved tube heat exchanger according to claim 1, it is characterized in that: steam impingement baffle (3) is arranged in steam inlet pipe (5) inboard, steam impingement baffle (3) is welded on shell (4) and the steam inlet pipe (5) by stairstepping gusset (1) and rectangle gusset (2), the narrow side weld of stairstepping gusset (1) is connected on steam inlet pipe (5) inboard, and the oblique shoulder of its broadside is welded on the shell (4) that is connected with steam inlet pipe (5) and locates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201534172U CN201016589Y (en) | 2006-11-29 | 2006-11-29 | Shell-and-tube steam-water heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201534172U CN201016589Y (en) | 2006-11-29 | 2006-11-29 | Shell-and-tube steam-water heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201016589Y true CN201016589Y (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201534172U Expired - Fee Related CN201016589Y (en) | 2006-11-29 | 2006-11-29 | Shell-and-tube steam-water heat exchanger |
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| Country | Link |
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| CN (1) | CN201016589Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749892B (en) * | 2008-06-27 | 2011-07-13 | 艾泰斯热***研发（上海）有限公司 | Evaporator |
| CN102862999A (en) * | 2012-09-14 | 2013-01-09 | 苏州市中衡压力容器制造有限公司 | Crystallization and concentration device used for extracting alumina from coal ash through acid leaching method |
| CN103292617A (en) * | 2013-06-08 | 2013-09-11 | 张家港市江南利玛特设备制造有限公司 | Finned heat exchanger |
| CN106288877A (en) * | 2016-07-29 | 2017-01-04 | 太仓英达锅炉设备有限公司 | A kind of steam heater and steam auxiliary recovery unit thereof |
| CN108343943A (en) * | 2017-01-22 | 2018-07-31 | 东方电气集团东方锅炉股份有限公司 | A kind of overheat segment structure improving high pressure heater available rate |
| CN109373302A (en) * | 2018-11-30 | 2019-02-22 | 江苏德克沃热力设备有限公司 | A kind of novel heat exchange unit of modularization steam generating equipment |
| CN109737375A (en) * | 2018-11-30 | 2019-05-10 | 江苏德克沃热力设备有限公司 | A kind of combination exchanger of modularization steam unit |
-
2006
- 2006-11-29 CN CNU2006201534172U patent/CN201016589Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749892B (en) * | 2008-06-27 | 2011-07-13 | 艾泰斯热***研发（上海）有限公司 | Evaporator |
| CN102862999A (en) * | 2012-09-14 | 2013-01-09 | 苏州市中衡压力容器制造有限公司 | Crystallization and concentration device used for extracting alumina from coal ash through acid leaching method |
| CN102862999B (en) * | 2012-09-14 | 2015-05-20 | 苏州市中衡压力容器制造有限公司 | Crystallization and concentration device used for extracting alumina from coal ash through acid leaching method |
| CN103292617A (en) * | 2013-06-08 | 2013-09-11 | 张家港市江南利玛特设备制造有限公司 | Finned heat exchanger |
| CN106288877A (en) * | 2016-07-29 | 2017-01-04 | 太仓英达锅炉设备有限公司 | A kind of steam heater and steam auxiliary recovery unit thereof |
| CN106288877B (en) * | 2016-07-29 | 2018-11-27 | 绍兴天翔旅游用品有限公司 | A kind of steam heater and its steam auxiliary recovery unit |
| CN108343943A (en) * | 2017-01-22 | 2018-07-31 | 东方电气集团东方锅炉股份有限公司 | A kind of overheat segment structure improving high pressure heater available rate |
| CN108343943B (en) * | 2017-01-22 | 2023-11-07 | 东方电气集团东方锅炉股份有限公司 | Overheating section structure for improving input rate of high-pressure heater |
| CN109373302A (en) * | 2018-11-30 | 2019-02-22 | 江苏德克沃热力设备有限公司 | A kind of novel heat exchange unit of modularization steam generating equipment |
| CN109737375A (en) * | 2018-11-30 | 2019-05-10 | 江苏德克沃热力设备有限公司 | A kind of combination exchanger of modularization steam unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |