CN202403564U - Straight pipe heat exchanger - Google Patents
Straight pipe heat exchanger Download PDFInfo
- Publication number
- CN202403564U CN202403564U CN201120555882XU CN201120555882U CN202403564U CN 202403564 U CN202403564 U CN 202403564U CN 201120555882X U CN201120555882X U CN 201120555882XU CN 201120555882 U CN201120555882 U CN 201120555882U CN 202403564 U CN202403564 U CN 202403564U
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- Prior art keywords
- pipe
- water inlet
- heat exchanger
- straight
- outlet pipe
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Abstract
The utility model discloses a straight pipe heat exchanger. The straight pipe heat exchanger is composed of a water inlet pipe, a water outlet pipe, and a heat exchange pipe communicated with the water inlet pipe and the water outlet pipe, wherein the heat exchange pipe is composed of more than three straight pipes arranged at intervals; one end of each of the straight pipes is communicated with the water inlet pipe, and the other end of each of the straight pipes is communicated with the water outlet pipe; the water inlet pipe is helically wound on a plane, one end of the water inlet pipe, which is wound in the center, is closed, and the other end of the water inlet pipe, which is wound on the periphery, is provided with a water inlet; the water outlet pipe is helically wound on the other plane, one end of the water outlet pipe, which is wound in the center, is provided with a water outlet, and the other end of the water outlet pipe, which is wound on the periphery, is closed; and the water outlet pipe and the water inlet pipe are symmetrically arranged at the two ends of a straight pipe. According to the straight pipe heat exchanger, cooling water flows in the heat exchanger from the water inlet pipe and flows out from the water outlet pipe through the straight pipes; as the straight pipes are arranged between the water inlet pipe and the water outlet pipe in parallel and the water inlet pipe and the water outlet pipe are in a helical shape, the space is saved; and the water inlet pipe is provided with only one opening as the water inlet and the water outlet pipe is provided with only one opening as the water outlet, so that the straight pipe heat exchanger is simple in structure and convenient to manufacture and repair.
Description
Technical field
The utility model relates to a kind of heat exchanger, relates in particular to a kind of straight pipe heat exchanger that is applicable to gas-liquid-solid phase reactor.
Background technology
F-T is synthetic, and (Fischer-Tropsch Sythesis is synthetic to be meant with the synthesis gas to be raw material; Synthetic under catalyst and appropriate reaction condition is the technical process of master's liquid fuel with the paraffin wax hydrocarbon; Key reaction is to be liquid fuel with coal and conversion of natural gas), synthetic reactions such as synthetic, the ammonia synthesis of methyl alcohol and methanation, all be course of reaction with heat release.For example:
1.F-T reaction
CO+H
2→ hydro carbons+1674kJ/m
3
2. methyl alcohol synthetic reaction
CO+2H
2→CH
3OH+90.8kJ/mol
CO
2+3H
2→CH
3OH+H
2O+49.5kJ/mol
3. ammonia synthesis reaction
N
2+3H
2→2NH
3+92.4kJ/mol
4. methanation reaction
CO+3H
2→CH
4+H
2O+206kJ/mol
CO2+4H
2→CH
4+2H
2O+165kJ/mol
Can find out by above-listed four kinds of reactions; F-T synthetic reaction and methanation reaction heat release are comparatively huge strong, F-T synthetic reaction especially, and heat release is the strongest; If can not effectively remove reaction heat; The reacting gas temperature is risen to about 1500 ℃, and not only catalyst can be burnt out, and consersion unit also can not bear high-temperature like this; So in the reactor of these exothermic reactions, the heat exchanger of different structure type is arranged all, remove reaction heat timely and effectively, guarantee the safety of catalyst and reactor, reaction can normally be carried out.Because of the structural design of environment for use various heat exchange device has following some specific (special) requirements: first wants to satisfy the required heat exchange area of technology; Heat exchange area is too little; Can not guarantee to remove reaction heat, the influence reaction is normally carried out, and heat exchange area is too big; The accounted for useful space of reactor influences the production capacity of reactor; Second needs the reasonable Arrangement heat exchanger tube, and the layout of heat exchanger tube should make interior each the regional reaction heat of reaction zone timely and effectively remove, otherwise will produce local overheating, catalysqt deactivation, and reaction can not normally be carried out; The flow velocity of steam water interface in the 3rd control heat exchanger tube, flow velocity is too high, and resistance increases; Flow velocity is too low, under the certain situation of heat exchange area, influences the heat exchange effect, and reaction also can not normally be carried out; The 4th heat exchanger should be simple in structure, installation and maintenance convenience.
But there are many weak points in existing heat exchanger, mainly shows following several respects: the layout of first heat exchanger tube is unreasonable, and the regional heat exchanger tube that has in the reaction bed is arranged comparatively dense; What have is more sparse; Even the zone that has just do not have reaction tube at all, and this just makes reaction heat not remove equably, produces local overheating; Influence catalyst activity, influence reactor production capacity.The structural design of second heat exchanger is unreasonable; Make cooling water can not be assigned in the every heat exchanger tube equably; The water yield does not wait in numerous heat exchanger tubes, and the reaction heat of being walked is just different, and the temperature of reaction bed is just unbalanced; Just be easy to generate " hot-zone " (being usually said " focus "), what influence was reacted normally carries out.The complex of the 3rd heat exchanger.For example adopt straight tube to be heat exchanger tube, as shown in Figure 1, by a plurality of water inlet manifold 01, a plurality of outfall sewer 01 ', a plurality of secondary be in charge of 02, a plurality of three grades be in charge of 03 and constitute; Cooling water flows into secondary through water inlet manifold 01 and is in charge of 02, is in charge of 02 inflow through secondary and is in charge of 03 for three grades, is in charge of 02 through secondary again and flows into outfall sewer 01 ' completion heat exchange; Textural anomaly is complicated, and not only manufacture difficulty is big, and weld seam quantity is many; In case break down, the maintenance difficulty is very big, some places even can't keep in repair.
The utility model content
The utility model provides a kind of straight pipe heat exchanger, in order to solve defective of the prior art, realizes simplified structure, is convenient to maintenance, reduces cost.
The utility model embodiment provides a kind of straight pipe heat exchanger; Heat exchanger tube by said water inlet pipe of water inlet pipe, outlet pipe and connection and outlet pipe constitutes; Said heat exchanger tube is that many straight tubes are provided with formation at interval, said straight tube one end and said water inlet pipe conducting, the straight tube other end and said outlet pipe conducting; Said water inlet pipe coils shape in the shape of a spiral on a plane, wherein coil the end sealing in the center, coils in an end of periphery and is provided with water inlet; Said outlet pipe coils shape in the shape of a spiral on another plane, wherein coil in an end at center and be provided with delivery port, coils the end sealing in the periphery; Said water inlet pipe and outlet pipe are symmetricly set on said straight tube two ends.
Further, each enclose said water inlet pipe with each enclose all be arranged at intervals with on the said outlet pipe two row said straight tube.
Particularly, two row's straight tubes are symmetrically distributed along said water inlet pipe of every circle and the said outlet pipe of every circle.
Wherein, said straight tube is uniformly distributed with and is arranged on every circle water inlet pipe and the outlet pipe.
Further, said outlet pipe is provided with at least three hangers.
The straight pipe heat exchanger that the utility model provides hangs on straight pipe heat exchanger in the reactor during use, and cooling water gets into heat exchanger from water inlet pipe; Heat in the cooling water absorption reactor thermally in the straight tube of flowing through again, straight tube flows out from outlet pipe at last; Because straight tube is arranged in parallel between water inlet pipe and outlet pipe, water inlet pipe and outlet pipe be shape in the shape of a spiral, has practiced thrift the space; And water inlet pipe is only established an opening as water inlet; Outlet pipe is only established an opening as delivery port, and is simple in structure, is convenient to make and maintenance.
Description of drawings
Fig. 1 is the prior art structural representation;
Fig. 2 is the front view of the utility model embodiment;
Fig. 3 is the local structure for amplifying sketch map of I among Fig. 2;
Fig. 4 be among Fig. 2 along A-A to the sectional structure sketch map;
Fig. 5 be among Fig. 2 along B-B to the sectional structure sketch map.
Reference numeral:
The 1-shell wall; The 2-water inlet pipe; The N1-water inlet;
The 4-straight tube; The 3-outlet pipe; The N2-delivery port;
The 7-hanger; The 01-water inlet manifold; 01 '-outfall sewer;
The 02-secondary is in charge of; 03-is in charge of for three grades; The 8-helix.
The specific embodiment
The utility model embodiment provides a kind of straight pipe heat exchanger; Shown in Fig. 2～4; This heat exchanger is made up of the heat exchanger tube of water inlet pipe 2, outlet pipe 3 and connection water inlet pipe 2 and outlet pipe 3; Heat exchanger tube is that many straight tubes 4 parallel interval are provided with formation, straight tube 4 one ends and water inlet pipe 2 conductings, straight tube 4 other ends and outlet pipe 3 conductings; Water inlet pipe 2 is symmetricly set on straight tube 4 two ends with outlet pipe 3.
Every circle water inlet pipe 2 and whenever irising out can be established a row or two row's straight tubes 4 between the water pipe 3, in order to increase heat exchange area and cooling water flow, each circle water inlet pipe 2 is irised out with each and all is arranged at intervals with two row's straight tubes 4 on the water pipe 3 in the present embodiment; As shown in Figure 4, wherein helix 8 is center lines of water inlet pipe 2, does not belong to the structure of water inlet pipe 2, and for uniform heat exchange, two row's straight tubes 4 are along every circle water inlet pipe 2 and whenever iris out water pipe 3 symmetrical distributions; Straight tube 4 is uniformly distributed with and is arranged on every circle water inlet pipe 2 and the outlet pipe 3.Every circle water inlet pipe 2 is identical with straight tube 4 quantity of whenever irising out between the water pipe 3; Two row's straight tubes 4 symmetries and being uniformly distributed with; Straight tube 4 lower ends and water inlet pipe 2 are welded to connect, and upper end and outlet pipe 3 pipes are welded to connect, and present embodiment is symmetry welding two straight tubes (shown in Figure 3) on the same section of water inlet pipe or outlet pipe.The diameter of straight tube is generally Φ 25～Φ 89mm, and the spacing of two straight tubes is according to the size of straight tube diameter and different the setting is generally 55mm～200mm.
The temperature that the pressure of cooling water comes the conditioned reaction district in the control valve.The heat exchanger structure of this structural shape is simple, on the sidewall of pressure-bearing shell, has only a water inlet N1 and a delivery port N2.Every nook and cranny effectively heat exchange basically can not produce " focus " in reaction zone.Through the temperature that the pressure of cooling water in the control valve comes the conditioned reaction district, convenient and reliable operation.
What should explain at last is: above embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (5)
1. straight pipe heat exchanger; Heat exchanger tube by said water inlet pipe of water inlet pipe, outlet pipe and connection and outlet pipe constitutes, and it is characterized in that, said heat exchanger tube is that many straight tubes are provided with formation at interval; Said straight tube one end and said water inlet pipe conducting, the straight tube other end and said outlet pipe conducting; Said water inlet pipe coils shape in the shape of a spiral on a plane, wherein coil the end sealing in the center, coils in an end of periphery and is provided with water inlet; Said outlet pipe coils shape in the shape of a spiral on another plane, wherein coil in an end at center and be provided with delivery port, coils the end sealing in the periphery; Said water inlet pipe and outlet pipe are symmetricly set on said straight tube two ends.
2. straight pipe heat exchanger according to claim 1 is characterized in that, each enclose said water inlet pipe with each enclose all be arranged at intervals with on the said outlet pipe two row said straight tube.
3. straight pipe heat exchanger according to claim 2 is characterized in that, two row's straight tubes are symmetrically distributed along said water inlet pipe of every circle and the said outlet pipe of every circle.
4. straight pipe heat exchanger according to claim 1 is characterized in that, said straight tube is uniformly distributed with and is arranged on every circle water inlet pipe and the outlet pipe.
5. straight pipe heat exchanger according to claim 1 is characterized in that said outlet pipe is provided with at least three hangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120555882XU CN202403564U (en) | 2011-12-27 | 2011-12-27 | Straight pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120555882XU CN202403564U (en) | 2011-12-27 | 2011-12-27 | Straight pipe heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202403564U true CN202403564U (en) | 2012-08-29 |
Family
ID=46701206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120555882XU Expired - Lifetime CN202403564U (en) | 2011-12-27 | 2011-12-27 | Straight pipe heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202403564U (en) |
-
2011
- 2011-12-27 CN CN201120555882XU patent/CN202403564U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160928 Address after: 610041 Sichuan, Chengdu, Wuhou District, wash Bridge Street, No. 29 Patentee after: Chengdu General Engineering Technology Co., Ltd. Address before: 610041, No. 32, building 1, building 3, 177 Tianfu Road, 3 hi tech Zone, Sichuan, Chengdu Patentee before: Liu Xiaoke |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |