CN205878964U - Heat exchanger for waste heat recovery - Google Patents
Heat exchanger for waste heat recovery Download PDFInfo
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- CN205878964U CN205878964U CN201620435146.3U CN201620435146U CN205878964U CN 205878964 U CN205878964 U CN 205878964U CN 201620435146 U CN201620435146 U CN 201620435146U CN 205878964 U CN205878964 U CN 205878964U
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- heat exchanger
- heat transfer
- temperature heat
- finned tube
- pipe
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Abstract
The utility model discloses a heat exchanger for waste heat recovery, including heat exchanger box, high temperature heat transfer district and low temperature heat transfer district, high temperature heat transfer district sets up in the inside upper end of box, low temperature heat transfer district is disposed under the high temperature heat transfer district, be provided with the finned tube in the high temperature heat transfer district, be provided with the fluorescent lamp in the low temperature heat transfer district, the finned tube is the carbon steel finned tube, the fluorescent lamp is ND steel fluorescent lamp, the outside of heat exchanger box is provided with medium main entrance and medium general export, the entry of finned tube and the entry of fluorescent lamp communicate with each other with the medium main entrance respectively, the export of finned tube and fluorescent lamp communicates with each other with the medium general export respectively. The utility model discloses a heat transfer principle is strengthened to the subregion, and high -temperature region and low warm area adopt the different heat transfer pipelines of different materials, have improved heat exchange efficiency, reach the effect of alleviating low temperature corrosion.
Description
Technical field
This utility model relates to a kind of waste heat recovery heat exchanger, it is adaptable to low temperature exhaust heat recycles field.
Background technology
During coal-burned industrial boiler operation, heat loss due to exhaust gas is maximum in various heat losses one,
In domestic boiler controller system longtime running, exhaust gas temperature is generally higher than design load, typically 160～180 DEG C it
Between, fume emission has taken away a large amount of waste heat, and most industry boiler is the most sharp in process of production
Using these residual heat resources, if this part of waste heat can be reclaimed, energy-conservation effect will be considerable.Row
Cigarette temperature often reduces by 15 DEG C, and boiler efficiency about improves 1%.It is domestic and international coal fired power generation that low temperature exhaust heat reclaims
The wide variety of power-saving technology of industry, recent year popularization and application are quickly.Return at low temperature exhaust heat
Debit face, mainly by installing cryogenic heat exchanger heating boiler backwater or pot additional after air preheater
Stove moisturizing, improves boiler feed temperature, thus reduces coal consumption, improves boiler efficiency.More than boiler exhaust gas
Heat belongs to low grade residual heat resource, there is heat transfer property poor rotten with low temperature dew point on recycling
Erosion two large problems, the two problem makes pick up the heat difficulty more than boiler exhaust gas keep in repair into transformation
This increase, limits promoting the use of of cryogenic heat exchanger largely.Therefore, how more than the low temperature
Improve the coefficient of heat transfer of cryogenic heat exchanger during pick up the heat and improve the corrosion condition of heat exchange element
It is two large problems the most urgently to be resolved hurrily, reclaims can promote the use of concerning low temperature exhaust heat.
Summary of the invention
Technical problem to be solved in the utility model is the defect overcoming prior art, it is provided that a kind of waste heat returns
Receipts heat exchanger, it uses subregion enhanced heat exchange principle, high-temperature region and low-temperature space to use the difference of unlike material
Heat exchange pipeline, improves heat exchange efficiency, reaches to alleviate the effect of cold end corrosion.
This utility model solves above-mentioned technical problem and adopts the technical scheme that: a kind of waste heat recovery heat exchanger,
Including box heat exchanger, high temperature heat transfer zone and low-temperature heat exchange district, described high temperature heat transfer zone is arranged on box house
Upper end, described low-temperature heat exchange district is arranged on the lower section of high temperature heat transfer zone, is provided with in described high temperature heat transfer zone
Finned tube, is provided with light pipe in described low-temperature heat exchange district, described finned tube is finned carbon steel tubes, described light pipe
For ND steel light pipe, the outside of described box heat exchanger is provided with medium main entrance and medium general export, described wing
The entrance of sheet pipe and the entrance of light pipe communicate with medium main entrance respectively, and the outlet of described finned tube and light pipe divides
Do not communicate with medium general export.
Further, heat exchange, described box heat exchanger are realized for the ease of boiler smoke through box heat exchanger
Upper end be provided with smoke inlet, the lower end of described box heat exchanger is provided with exhanst gas outlet.
Further, for the ease of heat exchanger is fixed on flue, described smoke inlet and exhanst gas outlet divide
It is not provided with adpting flange, described adpting flange is evenly arranged with multiple bolt hole.
Further, in order to increase heat exchange area, improving heat exchange efficiency, described finned tube includes horizontal wing
Sheet bend pipe and vertical fin bend pipe, described light pipe includes horizon light bend pipe and vertical light bend pipe, described horizontal wing
Sheet bend pipe and vertical fin bend pipe are in-line arrangement, and described horizon light bend pipe and vertical light bend pipe are in-line arrangement.
After have employed technique scheme, this utility model has a following beneficial effect: this utility model by
In being respectively arranged with high temperature heat transfer zone and low-temperature heat exchange district in box heat exchanger, high temperature heat transfer zone have employed wing
Sheet pipe, is conducive to increasing heat exchange area, improves heat exchange efficiency, owing to finned tube uses finned carbon steel tubes permissible
Save promoting the use of of manufacturing cost, beneficially cryogenic heat exchanger to a certain extent；Due to low-temperature heat exchange district
Use light pipe, heat exchanger resistance can be reduced and improve tube bank dust stratification situation, owing to light pipe uses ND steel light
Pipe, can effectively improve tube bank low temperature acid dew piont corrosion, be conducive to the low of the most more lower temperatures
Temperature waste heat, expands the range of application of cryogenic heat exchanger.
Accompanying drawing explanation
Fig. 1 is the inside front view of a kind of waste heat recovery heat exchanger of the present utility model；
Fig. 2 is the right pseudosection of a kind of waste heat recovery heat exchanger of the present utility model；
Fig. 3 is the profile of the adpting flange of a kind of waste heat recovery heat exchanger of the present utility model；
In figure: 1. box heat exchanger, 2. high temperature heat transfer zone, 3. low-temperature heat exchange district, 4. finned tube, 5. light
Pipe, 6. medium main entrance, 7. medium general export, 8. smoke inlet, 9. exhanst gas outlet, 10. adpting flange,
11. bolts hole, 12. horizontal fin bend pipes, 13. vertical fin bend pipes, 14. horizon light bend pipes, 15. vertical light
Bend pipe.
Detailed description of the invention
In order to make content of the present utility model be easier to be clearly understood, below according to specific embodiment and tie
Close accompanying drawing, this utility model is described in further detail.
As Figure 1-3, a kind of waste heat recovery heat exchanger, including box heat exchanger 1, high temperature heat transfer zone 2
With low-temperature heat exchange district 3, described high temperature heat transfer zone 2 is arranged on the upper end within casing 1, described low-temperature heat exchange district
3 lower sections being arranged on high temperature heat transfer zone 2, are provided with finned tube 4, described low temperature in described high temperature heat transfer zone 2
Being provided with light pipe 5 in heat transfer zone 3, described finned tube 4 is finned carbon steel tubes, and described light pipe 5 is ND steel light
Pipe, the outside of described box heat exchanger 1 is provided with medium main entrance 6 and medium general export 7, described finned tube
The entrance of 4 and the entrance of light pipe 5 communicate with medium main entrance 6 respectively, going out of described finned tube 4 and light pipe 5
Mouth communicates with medium general export 7 respectively.
Heat exchange, the upper end of described box heat exchanger 1 is realized through box heat exchanger for the ease of boiler smoke
Being provided with smoke inlet 8, the lower end of described box heat exchanger 1 is provided with exhanst gas outlet 9.
For the ease of heat exchanger is fixed on flue, described smoke inlet 8 and exhanst gas outlet 9 set respectively
It is equipped with adpting flange 10, described adpting flange 10 is evenly arranged with multiple bolt hole 11.
In order to increase heat exchange area, improving heat exchange efficiency, described finned tube 4 includes horizontal fin bend pipe
12 and vertical fin bend pipe 13, described light pipe 5 includes horizon light bend pipe 14 and vertical light bend pipe 15, described
Horizontal fin bend pipe 13 and vertical fin bend pipe 13 are in-line arrangement, described horizon light bend pipe 14 and vertical light
Bend pipe 15 is in-line arrangement.
Heat exchanger uses bolt to be vertically fixed on flue by the adpting flange 10 at two ends, low-temperature flue gas
Enter in box heat exchanger 1 by smoke inlet 8, successively in finned tube 4 and light pipe 5 and pipe
Medium carries out heat exchange, and the flue gas after heat-exchange temperature reduces is disposed to next by exhanst gas outlet 9
Individual technological process, so far, low-temperature flue gas passes through the heat-absorbing action of cryogenic heat exchanger by flue gas
Waste heat recovery is divided to recycle.
Compared with prior art, this utility model is owing to being respectively arranged with high temperature heat transfer zone in box heat exchanger
With low-temperature heat exchange district, high temperature heat transfer zone have employed finned tube, is conducive to increasing heat exchange area, improves heat exchange effect
Rate, owing to finned tube uses finned carbon steel tubes can save manufacturing cost, beneficially low temperature to a certain extent
Promoting the use of of heat exchanger；Owing to low-temperature heat exchange district uses light pipe, heat exchanger resistance can be reduced and improve pipe
Bundle dust stratification situation, owing to light pipe uses ND steel light pipe, can improve tube bank low temperature acid dew piont corrosion effectively,
Be conducive to the low temperature exhaust heat of the most more lower temperatures, expand the range of application of cryogenic heat exchanger.
Particular embodiments described above, solves the technical problem that this utility model, technical scheme and useful
Effect is further described, be it should be understood that the foregoing is only of the present utility model specifically
Embodiment, is not limited to this utility model, all within spirit of the present utility model and principle,
Any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.
Claims (4)
1. a waste heat recovery heat exchanger, it is characterised in that: include box heat exchanger, high temperature heat transfer zone and
Low-temperature heat exchange district, described high temperature heat transfer zone is arranged on the upper end of box house, and described low-temperature heat exchange district is arranged on
The lower section of high temperature heat transfer zone, is provided with finned tube in described high temperature heat transfer zone, arrange in described low-temperature heat exchange district
Having light pipe, described finned tube is finned carbon steel tubes, and described light pipe is ND steel light pipe, described box heat exchanger
Outside be provided with medium main entrance and medium general export, the entrance of described finned tube and the entrance of light pipe respectively with
Medium main entrance communicates, and the outlet of described finned tube and light pipe communicates with medium general export respectively.
A kind of waste heat recovery heat exchanger the most according to claim 1, it is characterised in that: described heat exchange
The upper end of device casing is provided with smoke inlet, and the lower end of described box heat exchanger is provided with exhanst gas outlet.
A kind of waste heat recovery heat exchanger the most according to claim 2, it is characterised in that: described flue gas
It is respectively arranged with adpting flange on entrance and exhanst gas outlet, described adpting flange is evenly arranged with multiple bolt
Hole.
A kind of waste heat recovery heat exchanger the most according to claim 1, it is characterised in that: described fin
Pipe includes horizontal fin bend pipe and vertical fin bend pipe, and described light pipe includes horizon light bend pipe and vertical light bend pipe,
Described horizontal fin bend pipe and vertical fin bend pipe are in-line arrangement, described horizon light bend pipe and vertical light bend pipe
For in-line arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620435146.3U CN205878964U (en) | 2016-05-12 | 2016-05-12 | Heat exchanger for waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620435146.3U CN205878964U (en) | 2016-05-12 | 2016-05-12 | Heat exchanger for waste heat recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205878964U true CN205878964U (en) | 2017-01-11 |
Family
ID=57686920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620435146.3U Active CN205878964U (en) | 2016-05-12 | 2016-05-12 | Heat exchanger for waste heat recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205878964U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966048A (en) * | 2017-11-09 | 2018-04-27 | 北京航天试验技术研究所 | A kind of cooler |
| CN113293244A (en) * | 2021-05-21 | 2021-08-24 | 南京华电节能环保设备有限公司 | High-temperature molten slag crushing device and high-temperature molten slag crushing pool with waste heat recovery function |
| CN113842740A (en) * | 2021-11-08 | 2021-12-28 | 抚顺新钢铁有限责任公司 | Denitration flue gas heating system of sintering machine |
| CN115060096A (en) * | 2022-06-29 | 2022-09-16 | 中南大学 | Double-stage tube type heat exchanger structure suitable for tower type zinc rectifying furnace |
-
2016
- 2016-05-12 CN CN201620435146.3U patent/CN205878964U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966048A (en) * | 2017-11-09 | 2018-04-27 | 北京航天试验技术研究所 | A kind of cooler |
| CN113293244A (en) * | 2021-05-21 | 2021-08-24 | 南京华电节能环保设备有限公司 | High-temperature molten slag crushing device and high-temperature molten slag crushing pool with waste heat recovery function |
| CN113842740A (en) * | 2021-11-08 | 2021-12-28 | 抚顺新钢铁有限责任公司 | Denitration flue gas heating system of sintering machine |
| CN115060096A (en) * | 2022-06-29 | 2022-09-16 | 中南大学 | Double-stage tube type heat exchanger structure suitable for tower type zinc rectifying furnace |
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