CN203758319U - Anti-blockage double-tube type heat exchanger - Google Patents
Anti-blockage double-tube type heat exchanger Download PDFInfo
- Publication number
- CN203758319U CN203758319U CN201420025117.0U CN201420025117U CN203758319U CN 203758319 U CN203758319 U CN 203758319U CN 201420025117 U CN201420025117 U CN 201420025117U CN 203758319 U CN203758319 U CN 203758319U
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- Prior art keywords
- tube
- heat
- heat exchange
- heat exchanger
- medium inlet
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- 230000004888 barrier function Effects 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 abstract description 15
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an anti-blockage double-tube type heat exchanger. The heat exchanger comprises a barrel, heat exchange tube bundles arranged in the barrel, baffle plates arranged among the heat exchange tube bundles, tube plates arranged at the two ends of the heat exchange tube bundles, sealing heads connected with the tube plates on both sides, a tube pass medium inlet, a tube pass medium outlet, a shell pass medium inlet and a shell pass medium outlet, wherein the tube pass medium inlet and the tube pass medium outlet are connected with the sealing heads on both sides; the shell pass medium inlet and the shell pass medium outlet are connected with the barrel; each heat exchange tube bundle consists of more than two parallel outer heat exchange tubes arranged along the axial direction of the barrel, and a central pipe inserted into the outer heat exchange tubes; the inner walls of the outer heat exchange tubes are connected with the central pipes at the ends through fins. The flow channel of fluid is changed by inserting the central pipes into the heat exchange tubes, impurities in the fluid are prevented from being deposited and scaled under the reduction action of the flow section of fluid, the heat exchange tubes are prevented from being blocked, and the heat transfer coefficients of the heat exchange tubes are increased. Meanwhile, the heat exchanger has the advantages of simple structure, convenience in maintenance and repair, low cost and the like.
Description
Technical field
The utility model relates to tubular heat exchanger, and particularly a kind of hollow pipe sleeve pipe that inserts in former heat exchanger tube prevents from stopping up, and plays the technical method of augmentation of heat transfer effect simultaneously.
Background technology
Tubular heat exchanger is the most widely used a kind of heat transmission equipment of current chemical field, and it has the advantages such as simple in structure, compact, sturdy and durable, cheap, of many uses, strong adaptability.The heat exchanger tube of existing tubular heat exchanger mainly contains plain tube, bellows, screwed pipe etc., is all a single tube.This heat exchanger moves for a long time, or when requiring to manage the occasion of the easy fouling of medium in the low and pipe of interior flow, in pipe, easily fouling, causes equipment to be stopped up by incrustation scale, will make that Efficiency Decreasing, energy consumption increase, the lost of life.If incrustation scale can not be removed in time, will face maintenance of equipment, shut down or scrap the danger of replacing.There are a lot of problems as mechanical means (scrape, brush), water under high pressure, Chemical cleaning (pickling) etc. in traditional cleaning way for a long time when heat exchanger cleans: can not thoroughly remove the deposits such as incrustation scale, and equipment is caused to corrosion, residual acid produces anticaustic or underdeposit corrosion to material, finally cause more exchange device, in addition, cleaning waste liquid is poisonous, needs substantial contribution to carry out wastewater treatment.For this reason, inventor adopts the hollow pipe that inserts concentric in former heat exchanger tube or new heat exchanger tube, insertion due to hollow pipe, reduced the circulation area of fluid in former heat exchanger tube, rate of flow of fluid is increased, and the solia particle in fluid is in the situation that flow velocity increases, and situation during more former heat exchanger tube is more difficult to deposit fouling, can improve the situation of easy fouling in heat exchanger tube, stop up probability and also significantly reduce.
Summary of the invention
Technical problem to be solved in the utility model is that existing tubular heat exchanger adopts single tube to be combined into tube bank and carries out heat exchange, long-term operation, or when requiring to manage the occasion of the easy fouling of medium in the low and pipe of interior flow, easily fouling in heat exchanger tube, reduces heat exchange efficiency, simultaneously also for cleaning equipment brings difficulty, therefore, the shortcoming that easily deposits fouling for improving impurity in heat exchanger tube improves heat utilization efficiency simultaneously, proposes a kind of anti-obstruction tube in tube tubular heat-exchanger.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
This anti-obstruction tube in tube tubular heat-exchanger comprises cylindrical shell 5, be placed in the heat-exchanging tube bundle 8 in cylindrical shell 5, be placed in the hydraulic barrier 4 between heat-exchanging tube bundle, be placed in the tube sheet 3 at heat-exchanging tube bundle 8 two ends, the end socket 1 being connected with both sides tube sheet 3, tube side medium inlet 2, tube side media outlet 9, shell side medium inlet 6, shell side media outlet 7, tube side medium inlet 2, tube side media outlet 9 is separately positioned on both sides end socket 1, shell side medium inlet 6, shell side media outlet 7 is arranged on cylindrical shell 5, heat-exchanging tube bundle 8 is parallel to each other above by two and forms along the outer heat exchanger tube 10 of cylindrical shell 5 axially-aligned and the central tube 12 inserting wherein, outer heat exchanger tube 10 inwalls are connected in end by fin 13 with central tube 12.
Described central tube 12 is hollow center pipe or solid central tube.
The central axis of described heat exchanger tube 10 is consistent with the direction of axis line that inserts its inner central tube 12.
Distance between every adjacent two pipes of described heat-exchanging tube bundle 8 is that equate or unequal.
When described central tube 12 is hollow pipe, hollow pipe both ends open is provided with stopper 11, prevents that fluid from therefrom flowing through.
Described hydraulic barrier 4 can adopt single arc or bouble-bow shape baffle plate, and baffle plate has certain opening, and opening is 5% ~ 50% of cylindrical shell 5 diameters, and the spacing of every adjacent two hydraulic barriers equates or be unequal.
The two ends of described outer heat exchanger tube and central tube two ends are welded with fin, with fin, two pipes are linked together, and can play the external application of fixing internal central tube, and fin number and deployment scenarios depend on the circumstances.
The utility model is simple in structure, in the fluid passage that the outside of heat exchanger tube 10 inwalls and interpolation central tube forms outside, flow, fluid is enhanced heat exchange under the perturbation action of fin, and increases turbulivity, simultaneously, due to reducing of circulation area in passage, fluid-flow rate is increased, the disturbance of fin with reduce under the double action of circulation area, the solia particle in pipe in medium is difficult to deposit fouling, heat exchanger tube is less scaling and stop up, and can be widely used in the heat exchange field of petroleum chemical industry.
Technique scheme of the present utility model has the following advantages compared to existing technology:
By inserting central tube in heat exchanger tube outside, change the flow channel of fluid, under the effect reducing in fluid passage section, make the impurity in fluid be difficult to deposit fouling, make heat exchanger tube be difficult for stopping up, but also improved the heat transfer coefficient of heat exchanger tube.Meanwhile, also possess simple in structure, easy to maintenance, be convenient to maintenance, the advantage such as with low cost, apply very extensive.
Accompanying drawing explanation
Fig. 1 is the anti-obstruction tube in tube tubular heat-exchanger of the utility model structural representation;
Fig. 2 is the cross-sectional view of the outer heat exchanger tube of the utility model and hollow center pipe;
Fig. 3 is the cross-sectional view of A-A in Fig. 2;
Fig. 4 is the cross-sectional view of the outer heat exchanger tube of the utility model and solid central tube;
In figure: 1: end socket; 2: tube side medium inlet; 3: tube sheet; 4: hydraulic barrier; 5: cylindrical shell; 6: shell side medium inlet; 7: shell side media outlet; 8: heat-exchanging tube bundle; 9: tube side media outlet; 10: outer heat exchanger tube; 11: stopper; 12: central tube; 13: fin.
The specific embodiment
Below by drawings and Examples, the utility model is described in further detail, but protection domain of the present utility model is not limited to described content.
Embodiment 1: as Fig. 1, 2, shown in 3, anti-obstruction tube in tube tubular heat-exchanger comprises cylindrical shell 5, be placed in the heat-exchanging tube bundle 8 in cylindrical shell 5, be placed in the hydraulic barrier 4 between heat-exchanging tube bundle, be placed in the tube sheet 3 at heat-exchanging tube bundle 8 two ends, the end socket 1 being connected with both sides tube sheet 3, tube side medium inlet 2, tube side media outlet 9, shell side medium inlet 6, shell side media outlet 7, tube side medium inlet 2, tube side media outlet 9 is separately positioned on both sides end socket 1, shell side medium inlet 6, shell side media outlet 7 is arranged on cylindrical shell 5, heat-exchanging tube bundle 8 is parallel to each other by 10 and forms along the outer heat exchanger tube 10 of cylindrical shell 5 axially-aligned and the hollow center pipe 12 inserting wherein, outer heat exchanger tube 10 inwalls are connected in end by fin 13 with central tube 12, fin 13 can play the effect of fixation hollow central tube 12, hollow pipe both ends open is provided with stopper 11, prevents that fluid from therefrom flowing through, and the central axis of heat exchanger tube 10 is consistent with the direction of axis line that inserts its inner hollow center pipe 12, and the distance between every adjacent two pipes of heat-exchanging tube bundle 8 is equal, described hydraulic barrier 4 is vertical with outer heat exchanger tube 10 with cylindrical shell 5 walls, described hydraulic barrier 4 is single arc hydraulic barrier, and opening is 5% of cylindrical shell 5 diameters, and the distance between every adjacent two hydraulic barriers equates, described fin 13 is plain fin, and fin number is 4, mutually vertical between every adjacent two fins, tube sheet 3 is monoblock plectanes, and mid portion is heat-exchanging tube bundle 8 fixedly, the double flange of doing of sponson, and for fixed seal head 1, tube sheet and cylindrical shell 5 are by being welded together.
In the fluid passage that the outside of heat exchanger tube 10 inwalls and interpolation hollow center pipe forms outside, flow, because the more former heat exchanger tube area of circulation area reduces, therefore fluid-flow rate increases, add the perturbation action of fin convection cell simultaneously, make the impurity particle in fluid be not easy to deposit on tube wall, heat exchanger tube is just not easy blocked.In addition, the increase meeting of flow velocity brings larger heat transfer coefficient to heat exchanger, so heat exchanger is being difficult in blocked also having strengthened heat-transfer effect.
Described heat exchanger tube pass medium inlet 2, tube side media outlet 9 can be connected with two ends end socket 1 in 0 ~ 360 degree direction, and jointly form the tube side passage of heat exchanger with the pipe outer flow passage of outer heat exchanger tube 10 and hollow center pipe 12; Shell side medium inlet 6, shell side media outlet 7 are connected with cylindrical shell 5 in 0 ~ 360 degree direction, and and the pipe of heat-exchanging tube bundle 8 between the shell side passage of runner and the common formation heat exchanger of tube sheet 3.
Embodiment 2: anti-obstruction tube in tube tubular heat-exchanger comprises cylindrical shell 5, be placed in the heat-exchanging tube bundle 8 in cylindrical shell 5, be placed in the hydraulic barrier 4 between heat-exchanging tube bundle, be placed in the tube sheet 3 at heat-exchanging tube bundle 8 two ends, the end socket 1 being connected with both sides tube sheet 3, tube side medium inlet 2, tube side media outlet 9, shell side medium inlet 6, shell side media outlet 7, tube side medium inlet 2, tube side media outlet 9 is connected with both sides end socket 1 respectively, shell side medium inlet 6, shell side media outlet 7 is connected with cylindrical shell 5, heat-exchanging tube bundle 8 is parallel to each other above by two and forms along the outer heat exchanger tube 10 of cylindrical shell 5 axially-aligned and the solid central tube 12 inserting wherein, outer heat exchanger tube 10 inwalls are connected by fin 13 with solid central tube 12, fin 13 can play the effect of fixing solid central tube 12, the central axis of heat exchanger tube 10 is consistent with the direction of axis line of the solid central tube 12 of its inside of insertion, and the distance between every adjacent two pipes of heat-exchanging tube bundle 8 is unequal, described hydraulic barrier 4 is vertical with outer heat exchanger tube 10 with cylindrical shell 5 walls, described hydraulic barrier 4 is bouble-bow shape hydraulic barrier, and opening is 20% of cylindrical shell 5 diameters, and the distance between every adjacent two hydraulic barriers is unequal, described fin 13 is plain fin, and fin number is 4, mutually vertical (see figure 4) between every adjacent two fins.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And among the protection domain that the apparent variation of being amplified out thus or change are still created in the utility model.
Claims (6)
1. an anti-obstruction tube in tube tubular heat-exchanger, comprise cylindrical shell (5), be placed in the heat-exchanging tube bundle (8) in cylindrical shell (5), be placed in the hydraulic barrier (4) between heat-exchanging tube bundle, be placed in the tube sheet (3) at heat-exchanging tube bundle (8) two ends, the end socket (1) being connected with both sides tube sheet (3), tube side medium inlet (2), tube side media outlet (9), shell side medium inlet (6), shell side media outlet (7), tube side medium inlet (2), tube side media outlet (9) is separately positioned on both sides end socket (1), shell side medium inlet (6), shell side media outlet (7) is arranged on cylindrical shell (5), it is characterized in that: heat-exchanging tube bundle (8) is parallel to each other above by two and forms along the outer heat exchanger tube (10) of cylindrical shell (5) axially-aligned and the central tube (12) inserting wherein, outer heat exchanger tube (10) inwall is connected in end by fin (13) with central tube (12).
2. anti-obstruction tube in tube tubular heat-exchanger according to claim 1, is characterized in that: central tube (12) is hollow center pipe or solid central tube.
3. anti-obstruction tube in tube tubular heat-exchanger according to claim 1, is characterized in that: the central axis of described heat exchanger tube (10) is consistent with the direction of axis line that inserts its inner central tube (12).
4. anti-obstruction tube in tube tubular heat-exchanger according to claim 1, is characterized in that: the distance between every adjacent two pipes of described heat-exchanging tube bundle (8) is that equate or unequal.
5. anti-obstruction tube in tube tubular heat-exchanger according to claim 2, is characterized in that: central tube (12) is during for hollow pipe, and hollow pipe both ends open is provided with stopper (11).
6. anti-obstruction tube in tube tubular heat-exchanger according to claim 1, is characterized in that: the spacing of every adjacent two hydraulic barriers (4) equates or be unequal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025117.0U CN203758319U (en) | 2014-01-16 | 2014-01-16 | Anti-blockage double-tube type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025117.0U CN203758319U (en) | 2014-01-16 | 2014-01-16 | Anti-blockage double-tube type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203758319U true CN203758319U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420025117.0U Expired - Fee Related CN203758319U (en) | 2014-01-16 | 2014-01-16 | Anti-blockage double-tube type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203758319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112484531A (en) * | 2019-12-31 | 2021-03-12 | 王道月 | Spiral tube heat exchanger for preventing medium polymerization for chemical vacuum system |
-
2014
- 2014-01-16 CN CN201420025117.0U patent/CN203758319U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112484531A (en) * | 2019-12-31 | 2021-03-12 | 王道月 | Spiral tube heat exchanger for preventing medium polymerization for chemical vacuum system |
| CN112484531B (en) * | 2019-12-31 | 2022-07-29 | 安徽昊源化工集团有限公司 | Spiral tube heat exchanger for preventing medium polymerization for chemical vacuum system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20150116 |
|
| EXPY | Termination of patent right or utility model |