CN204421692U - A kind of high temperature gas-liquid pipe heat exchanger - Google Patents
A kind of high temperature gas-liquid pipe heat exchanger Download PDFInfo
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- CN204421692U CN204421692U CN201420816415.1U CN201420816415U CN204421692U CN 204421692 U CN204421692 U CN 204421692U CN 201420816415 U CN201420816415 U CN 201420816415U CN 204421692 U CN204421692 U CN 204421692U
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- heat exchanger
- carbon steel
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- tube sheet
- high temperature
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Abstract
The utility model discloses a kind of high temperature gas-liquid pipe heat exchanger, this heat exchanger comprises high-temperature flue gas import (1), exhanst gas outlet (11), heat exchanger assembly and the liquid-inlet (9) be connected with heat-exchanging component and liquid outlet (4), described heat exchanger assembly is set to segmentation structure according to flue-gas temperature, this segmentation structure is by carbon steel tubulation heat exchanger tube (6), carbon steel tubulation stainless steel fin heat exchange pipe (7), the coiled structure that carbon steel tubulation finned carbon steel heat exchanger tube (8) and elbow (15) are formed by connecting.The utility model structure is simple, stable, and sealing is reliable, and lightweight, long service life, solves conventional high-temperature gas-liquid heat-exchange heat exchanger tube fin high-temperature oxydation, with the problem such as tube sheet drawing crack.
Description
Technical field
The utility model relates to a kind of heat-exchange apparatus, particularly relates to a kind of medium and is respectively the high temperature resistant pipe heat exchanger that high-temperature flue gas and cryogenic liquid comprise water or conduction oil.
Background technology
Pipe heat exchanger is used for solution-air heat exchange or gas-phase-change heat-exchange, has a wide range of applications in fields such as air-conditioning, electronic device cooling, HVAC, refrigeration.Along with the enhancing of social environment consciousness and the puzzlement of low-temperature receiver pressure in short supply, the low-temperature receiver utilization rate of heat exchanger proposes more and more higher requirement.And high-temperature heat-exchanging be a kind ofly can be used for cooling high-temperature flue gas, the equipment of heat recovery.
Such as, certain production line produces a large amount of environmentally harmful inflammable substance (as the VOC such as benzene, dimethylbenzene) in process of production, if directly will produce high risks to environment discharged to air, does not meet atmospheric emission standard and the requirement about environmental protection.Therefore needed to process before pernicious gas is discharged to air, normally by burning, VOC is resolved into innocuous gas, the high-temperature flue gas (about about 800 DEG C) produced enters high-temperature heat-exchanging and carries out heat recovery, carries out thermal energy exchange reuse heat energy with water or conduction oil.And traditional high temperature gas-liquid heat-exchange many employings light pipe heat exchanger but this heat exchanger volume is huge, heat exchange efficiency is low, weight is large.
Summary of the invention
The purpose of this utility model is to provide a kind of high temperature gas-liquid pipe heat exchanger, can solve the fin high-temperature oxydation because high temperature causes, the problem of tube sheet drawing crack, and present device volume is little, lightweight simultaneously, heat exchange efficiency is high.
For solving some difficult points that above-mentioned existing heat exchanger exists, improve the version of traditional heat exchangers, concrete scheme is as follows:
A kind of high temperature gas-liquid pipe heat exchanger, comprise high-temperature flue gas import, exhanst gas outlet, heat exchanger assembly and the liquid-inlet be connected with heat-exchanging component and liquid outlet, described heat exchanger assembly is set to segmentation structure according to flue-gas temperature, this segmentation structure is by carbon steel tubulation heat exchanger tube, carbon steel tubulation stainless steel fin heat exchange pipe, the coiled structure that carbon steel tubulation finned carbon steel heat exchanger tube and elbow are formed by connecting.
600 DEG C ~ 800 DEG C pipeline sections of heat exchanger assembly are arranged to carbon steel tubulation, the pipeline section of 350 DEG C < temperature <600 DEG C is arranged to carbon steel tubulation stainless steel fin heat exchange pipe, is arranged to carbon steel tubulation finned carbon steel heat exchanger tube for 350 DEG C with lower tube section.
High-temperature flue gas import outer wrap alumina silicate fibre module is incubated.Between high-temperature flue gas import and tube sheet, expansion joint is set.All heat exchanger assemblies of liquid outlet and liquid-inlet homonymy adopt with the first tube sheet and are fixedly connected with (can all-weld joint), adopt be slidably connected with the second tube sheet.Second tube sheet and end socket welded seal, fill up with alumina silicate fibre between the second tube sheet and end socket.Because the second tube sheet is not fixedly connected with heat-exchanging component, can slide in one end, ensures under high-temperature flue gas washes away, and the thermal expansion of heat-exchanging component can't drawing crack tube sheet.Heat exchanger assembly first and terminal column are drawn by house steward, first house steward connected of heat exchanger assembly arranges liquid outlet, the house steward that heat exchanger assembly terminal column connects arranges liquid-inlet.High-temperature flue gas import is fixedly connected with steelframe with exhanst gas outlet.The heat-exchange inner container formed between heat exchanger assembly and tube sheet and steelframe adopt and are slidably connected, and rely on expansion joint to absorb internal expansion.Between first tube sheet and flue, and all arrange alumina silicate fibre layer around the second tube sheet and be incubated, alumina silicate fibre layer can use alumina silicate fibre to fill.
The high-temperature flue gas import of present device comprises expansion joint to tube sheet and protects by alumina silicate fibre, and alumina silicate fibre has heat insulation function, thus reduces tube sheet temperature, ensures equipment heatproof, alleviates weight of equipment.Heat-exchanging component of the present invention and steelframe are slidably connected, and high-temperature flue gas import and exhanst gas outlet are retrained by steelframe, and integral device internal expansion is compensated by expansion joint.
Because flue-gas temperature is up to about 800 DEG C, common material all can by high-temperature oxydation, and due to the fluid in tubulation be liquid, the wall temperature fundamental sum fluid temperature of tubulation is suitable, Gu the material of tubulation can select carbon steel.And equipment all adopts light pipe also can cause, and equipment is huge, heat exchange efficiency is low, weight is large.In order to address this problem, the utility model designs according to temperature section.600 DEG C ~ 800 DEG C adopt carbon steel tubulation.350 DEG C < temperature <600 DEG C adopts carbon steel pipe stainless steel (304) fin heat exchange pipe, because 304 material heatproofs are far more than 600 DEG C, and fin and base tube adopt ratio-frequency welding, the wall temperature of fin can be reduced, make fin not easily by high-temperature oxydation.When flue gas be temperature be down to below 350 DEG C time, can adopt carbon steel pipe finned carbon steel heat exchanger tube, all heat-exchanging components are connected by elbow.
High-temperature flue gas import of the present utility model comprises expansion joint to tube sheet and protects by alumina silicate fibre, particularly high-temperature flue gas import, what adopt is alumina silicate fibre module, alumina silicate fibre module is installed simple and convenient, module be connected before module tight, alleviate weight of equipment, ensure the service life of equipment; Heat-exchanging component and steelframe are slidably connected, and high-temperature flue gas import and exhanst gas outlet are retrained by steelframe, and integral device internal expansion is compensated by expansion joint, guarantee equipment flue can not at high temperature with tube sheet drawing crack.
The utility model compared with prior art has the following advantages:
1., because the utility model divides temperature section to adopt various heat exchange pipe, while the combining structure guaranteed performance of different high temperature resistant pipeline section is stable, reduce weight of equipment.
2. tube sheet of the present utility model adopts alumina silicate fibre protection, and lighter than traditional heatproof castable quality, cost is low.
3. tube sheet of the present utility model sealing adopts end socket sealing, avoids between heat-exchanging component and tube sheet due to tube sheet drawing crack that thermal expansion causes.
4. the utility model structure is simple, stable, sealing is reliable, cost performance is high, has very strong application in high temperature gas-liquid.
Accompanying drawing explanation
Fig. 1 is the top view of this Novel heat exchanger
In figure: the import of 1-high-temperature flue gas; 2-alumina silicate fibre module; 3-expansion joint; 4-liquid outlet; 5-first tube sheet; 6-carbon steel tubulation heat exchanger tube; 7-carbon steel tubulation stainless steel fin heat exchange pipe; 8-carbon steel tubulation finned carbon steel heat exchanger tube; 9-liquid-inlet; 10-steelframe; 11-exhanst gas outlet; 12-alumina silicate fibre layer; 13-second tube sheet; 14-end socket; 15-elbow.
Detailed description of the invention
Below in conjunction with accompanying drawing and example, the utility model is further described:
As shown in Figure 1, a kind of high temperature gas-liquid pipe heat exchanger, comprise high-temperature flue gas import 1, exhanst gas outlet 11, heat exchanger assembly and the liquid-inlet 9 be connected with heat-exchanging component and liquid outlet 4, described heat exchanger assembly is set to segmentation structure according to flue-gas temperature, and this segmentation structure is by carbon steel tubulation heat exchanger tube 6, carbon steel tubulation stainless steel fin heat exchange pipe 7, the coiled structure that carbon steel tubulation finned carbon steel heat exchanger tube 8 and elbow 15 are formed by connecting.
600 DEG C ~ 800 DEG C pipeline sections of heat exchanger assembly are arranged to carbon steel tubulation, the pipeline section of 350 DEG C < temperature <600 DEG C is arranged to carbon steel tubulation stainless steel fin heat exchange pipe, is arranged to carbon steel tubulation finned carbon steel heat exchanger tube for 350 DEG C with lower tube section.
High-temperature flue gas import 1 outer wrap alumina silicate fibre module 2 is incubated.Between high-temperature flue gas import 1 and the first tube sheet 5, expansion joint 3 is set.All heat exchanger assemblies and first tube sheet 5 of liquid outlet 4 and liquid-inlet 9 homonymy adopt all-weld joint, adopt be slidably connected with the second tube sheet 13.Second tube sheet 13 and end socket 14 welded seal, fill up with alumina silicate fibre between the second tube sheet 13 and end socket 14, namely fills up with alumina silicate fibre 12 in end socket 13.Because the second tube sheet 13 is not fixedly connected with heat-exchanging component, can slide in one end, ensure under high-temperature flue gas washes away, and the thermal expansion of heat-exchanging component can't drawing crack tube sheet.Heat exchanger assembly first and terminal column are drawn by house steward, first house steward connected of heat exchanger assembly arranges liquid outlet 4, the house steward that heat exchanger assembly terminal column connects arranges liquid-inlet 9.High-temperature flue gas import 1 is fixedly connected with steelframe 10 with exhanst gas outlet 11.The heat-exchange inner container formed between heat exchanger assembly and tube sheet and steelframe 10 adopt and are slidably connected, and rely on expansion joint 3 to absorb internal expansion.Put alumina silicate fibre layer 12 between first tube sheet 5 and flue to be incubated, the second tube sheet 13 surrounding arranges alumina silicate fibre layer 12 and is incubated, and alumina silicate fibre layer 12 uses alumina silicate fibre to fill.
During heat exchange, hot fluid is outside heat exchanger tube, and cold fluid is in heat exchanger tube, inside and outside heat exchanger tube, carry out heat exchange, under the effect of temperature, all there is thermal expansion in exchanger tubes and tubesheets etc., heat exchanger tube is free to slide in the second tube sheet 13, can not produce stress and cause tube sheet drawing crack.
Claims (10)
1. a high temperature gas-liquid pipe heat exchanger, comprise high-temperature flue gas import (1), exhanst gas outlet (11), heat exchanger assembly and the liquid-inlet (9) be connected with heat-exchanging component and liquid outlet (4), it is characterized in that: described heat exchanger assembly is set to segmentation structure according to flue-gas temperature, this segmentation structure is by carbon steel tubulation heat exchanger tube (6), carbon steel tubulation stainless steel fin heat exchange pipe (7), the coiled structure that carbon steel tubulation finned carbon steel heat exchanger tube (8) and elbow (15) are formed by connecting.
2. high temperature gas-liquid pipe heat exchanger according to claim 1, it is characterized in that: 600 DEG C ~ 800 DEG C pipeline sections of heat exchanger assembly are arranged to carbon steel tubulation, the pipeline section of 350 DEG C < temperature <600 DEG C is arranged to carbon steel tubulation stainless steel fin heat exchange pipe, is arranged to carbon steel tubulation finned carbon steel heat exchanger tube for 350 DEG C with lower tube section.
3. high temperature gas-liquid pipe heat exchanger according to claim 1, is characterized in that: high-temperature flue gas import (1) outer wrap alumina silicate fibre module (2) is incubated.
4. high temperature gas-liquid pipe heat exchanger according to claim 1, is characterized in that: arrange expansion joint (3) between high-temperature flue gas import (1) and the first tube sheet (5).
5. high temperature gas-liquid pipe heat exchanger according to claim 1, it is characterized in that: all heat exchanger assemblies of liquid outlet (4) and liquid-inlet (9) homonymy adopt with the first tube sheet (5) and are fixedly connected with, and adopt be slidably connected with the second tube sheet (13).
6. high temperature gas-liquid pipe heat exchanger according to claim 1, it is characterized in that: the second tube sheet (13) and end socket (14) welded seal, fill up with alumina silicate fibre between the second tube sheet (13) and end socket (14).
7. high temperature gas-liquid pipe heat exchanger according to claim 1, it is characterized in that: heat exchanger assembly first and terminal column are drawn by house steward, first house steward connected of heat exchanger assembly arranges liquid outlet (4), the house steward that heat exchanger assembly terminal column connects arranges liquid-inlet (9).
8. high temperature gas-liquid pipe heat exchanger according to claim 1, is characterized in that: high-temperature flue gas import (1) is fixedly connected with steelframe (10) with exhanst gas outlet (11).
9. high temperature gas-liquid pipe heat exchanger according to claim 1, is characterized in that: the heat-exchange inner container formed between heat exchanger assembly and tube sheet and steelframe (10) adopt and be slidably connected.
10. high temperature gas-liquid pipe heat exchanger according to claim 1, is characterized in that: between the first tube sheet (5) and flue, and the second tube sheet (13) around all arranges alumina silicate fibre layer (12) and is incubated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420816415.1U CN204421692U (en) | 2014-12-21 | 2014-12-21 | A kind of high temperature gas-liquid pipe heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420816415.1U CN204421692U (en) | 2014-12-21 | 2014-12-21 | A kind of high temperature gas-liquid pipe heat exchanger |
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| CN204421692U true CN204421692U (en) | 2015-06-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482542A (en) * | 2015-08-26 | 2017-03-08 | 盐城市瓯华化学工业有限公司 | Industrial chemicals production waste gas afterheat recovery unit |
| CN107792907A (en) * | 2016-09-05 | 2018-03-13 | 北京朗新明环保科技有限公司 | A kind of new evaporation concentration system that hc effluent is handled using fume afterheat |
| CN108771962A (en) * | 2017-10-30 | 2018-11-09 | 中国航天员科研训练中心 | Manned spacecraft uses CH4Catalytic oxidizing equipment |
-
2014
- 2014-12-21 CN CN201420816415.1U patent/CN204421692U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482542A (en) * | 2015-08-26 | 2017-03-08 | 盐城市瓯华化学工业有限公司 | Industrial chemicals production waste gas afterheat recovery unit |
| CN107792907A (en) * | 2016-09-05 | 2018-03-13 | 北京朗新明环保科技有限公司 | A kind of new evaporation concentration system that hc effluent is handled using fume afterheat |
| CN108771962A (en) * | 2017-10-30 | 2018-11-09 | 中国航天员科研训练中心 | Manned spacecraft uses CH4Catalytic oxidizing equipment |
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