CN203757690U - Finned tube membrane coal economizer - Google Patents
Finned tube membrane coal economizer Download PDFInfo
- Publication number
- CN203757690U CN203757690U CN201420043777.1U CN201420043777U CN203757690U CN 203757690 U CN203757690 U CN 203757690U CN 201420043777 U CN201420043777 U CN 201420043777U CN 203757690 U CN203757690 U CN 203757690U
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- Prior art keywords
- fin
- extended surface
- band steel
- mother
- angle steel
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Abstract
The utility model relates to a finned tube membrane coal economizer and belongs to the field of thermal energy utilization and machining. The coal economizer is formed by a tube bundle formed by finned tubes which are arranged sequentially. Angle steels are connected with the upper and lower portions of a mother tube of each finned tube and are connected with fin flat steels, and the upper and lower fins are arranged in the same plane which passes through the center lines of the mother tubes. The angle steels and the mother tubes are tangent at the tangent points, the thickness d1 of the fin flat steels are larger than the thickness d2 of the mother tubes, and the ratio of the height H of the fin flat steels to the diameter D of the mother tubes is between 0.4 and 1.1. The mother tubes, the angle steels and the fin flat steels are in welded connection. Compared with the prior art, the coal economizer is convenient to machine, low in total fabrication cost, provided with a simple streamline structure and reducing depositions and abrasions and small in flow resistance.
Description
Technical field
The utility model relates to a kind of economizer, relates in particular to a kind of finned Membrane Economizer, belongs to heat energy utilization and field of machining.
Background technology
For station boiler, Industrial Boiler etc., in order to reduce exhaust gas temperature, to improve generating efficiency, the economizer heat-transferring assembly that is absolutely necessary.In design when economizer, consider the problems such as the wear-resistant and heat transfer of burn into.Because the heat transfer temperature difference of economizer is little, thereby the heat transfer area needing is more, and this just needs larger space to arrange economizer.By increasing extended surface, can improve the economizer area of arranging in unit space, thereby can reduce the demand of economizer to arrangement space.But, increase when extended surface, easily bring wear problem and reduce the etching problem causing because of extended surface end region temperature.Chinese patent CN 2336313Y has announced a kind of fin economizer tube, installs lower fin and left and right fin on female pipe, can overcome the wearing and tearing of economizer and improve heat-transfer effect, but the complex structure of fin is drawn materials and manufactures difficulty.Chinese patent CN 85200251U has announced a kind of no accretion of ash high heat transfer economizer, on cast iron pipe except casting square cast iron fin, also cast longitudinal stream line style cylinder or isosceles Rhizoma Sparganii cone, heat-transfer effect is better, but manufacture and installation requirement are high, are not easy to apply.The economizer tube of prior art band extended surface or be the extension tube with upper and lower fin, it is square extended surface tube, although obtained in actual use good effect, but processing and manufacturing inconvenience, streamlined poor in face of flue gas direction, easily dust stratification, thereby need to develop a kind of new-type economizer that can overcome these problems.
Summary of the invention
The deficiency and the defect that exist for prior art, the purpose of this utility model is to provide the extended surface tube that a kind of processing and manufacturing is simple, heat-transfer effect is good Membrane Economizer.
The utility model is achieved through the following technical solutions:
A kind of extended surface tube Membrane Economizer, is arranged and forms along row by extended surface tube more than two, and described extended surface tube comprises female pipe, at least two group angle steel and fin band steel group; Every group of angle steel and fin band steel group are formed by connecting by an angle steel and a fin band steel; Angle steel and fin band steel group are arranged symmetrically with up and down with female tube hub, and the fin band steel being arranged symmetrically with is in same plane; Angle steel is connected on female pipe.
In technique scheme, angle steel and female pipe are tangential on point of contact, and the d1 of the thickness of fin band steel is greater than the thickness d 2 of female pipe, and the diameter D ratio of the height H of fin band steel and female pipe is 0.4～1.1.Connected mode between female pipe, angle steel and fin band steel is welding or overall rolling.
The utility model compared with prior art, has the following advantages and high-lighting effect: the mother's pipe, angle steel, the band steel that 1. form extended surface tube are cheap and easy to get, convenient processing and manufacture, and overall cost is low.2. the connected mode of angle steel and band steel, approximate formation is streamlined, thereby can reduce dust stratification and liability fraying.
Brief description of the drawings
Fig. 1 is the related a kind of extended surface tube Membrane Economizer schematic diagram of the utility model;
Fig. 2 is the cutaway view of the extended surface tube of composition extended surface tube Membrane Economizer.
In figure: 1-point of contact; 2-extended surface tube; The female pipe of 3-; 4-angle cleat; 5-fin band steel.
Detailed description of the invention
Describe concrete structure of the present utility model, operation principle and embodiment in detail below in conjunction with accompanying drawing:
Fig. 1 is the related a kind of extended surface tube Membrane Economizer schematic diagram of the utility model, and described device is arranged and formed along row by extended surface tube 2 more than two.Described extended surface tube 2 comprises female pipe 3, at least two group angle steel and fin band steel group; Every group of angle steel and fin band steel group are formed by connecting by an angle steel 4 and a fin band steel 5.
Fig. 2 is the cutaway view of the extended surface tube of composition extended surface tube Membrane Economizer, angle steel and fin band steel group are arranged symmetrically with up and down with mother 3 centers of managing, manage 3 upper semi-circle top and lower half circle bottom is connected with angle steel 4 mother, angle steel 4 is connected with fin band steel 5, and the fin band steel 5 of upper and lower is 180 ° of distributions in same plane.Angle steel 4 is tangential on point of contact 1 with female pipe 3, and the thickness d 1 of fin band steel 5 is 10mm, and the thickness d 2 of female pipe 3 is 5mm, and the height H of fin band steel 5 is 20mm, and the diameter D of female pipe 3 is 38mm, and the ratio of H and D is 0.53, between 0.4～1.1.Between female pipe 3, angle steel 4 and fin band steel 5, be weldingly connected.
In the time of economizer actual motion, incoming flow flue gas streams tube bank, walks around extended surface tube 2, and the angle steel 4 being connected with extended surface tube 2 and the structure of band steel 5 have fairshaped feature, makes to flow evenly, avoids concentrated wear, and flow resistance is little.Meanwhile, fin and angle steel have also played the effect of abrasion-proof cover plate, have effectively improved the service life of economizer tube, reduce and change the frequency.
Between female pipe 3, angle steel 4 and fin band steel 5, the mode that is connected is not limited to welding, when mother manages 3 together with angle steel 4 rollings time, form another embodiment of this patent, and heat-transfer effect is better.
Claims (3)
1. an extended surface tube Membrane Economizer, is characterized in that: described device is arranged and formed along row by extended surface tube more than two (2), and described extended surface tube (2) comprises female pipe (3), at least two group angle steel and fin band steel group; Every group of angle steel and fin band steel group are formed by connecting by an angle steel (4) and a fin band steel (5); Angle steel and fin band steel group are arranged symmetrically with up and down with mother's pipe (3) center, and the fin band steel (5) being arranged symmetrically with is in same plane; Angle steel (4) is connected on female pipe (3).
2. a kind of extended surface tube Membrane Economizer according to claim 1, it is characterized in that: described angle steel (4) is tangential on point of contact (1) with female pipe (3), the d1 of the thickness of fin band steel (5) is greater than the thickness d 2 of female pipe (3), and the height H of fin band steel (5) is 0.4～1.1 with the diameter D ratio of female pipe (3).
3. according to a kind of extended surface tube Membrane Economizer described in claim 1 or 2, it is characterized in that: the connected mode between female pipe (3), angle steel (4) and fin band steel (5) is welding or overall rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420043777.1U CN203757690U (en) | 2014-01-24 | 2014-01-24 | Finned tube membrane coal economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420043777.1U CN203757690U (en) | 2014-01-24 | 2014-01-24 | Finned tube membrane coal economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757690U true CN203757690U (en) | 2014-08-06 |
Family
ID=51252958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420043777.1U Expired - Fee Related CN203757690U (en) | 2014-01-24 | 2014-01-24 | Finned tube membrane coal economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203757690U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482565A (en) * | 2016-11-18 | 2017-03-08 | 华中科技大学 | A kind of heat exchanger tube and the shell-and-tube exchanger using the heat exchanger tube |
| CN107477563A (en) * | 2016-06-07 | 2017-12-15 | 张家港市华正进出口贸易有限公司 | Coal saving device |
| RU177497U1 (en) * | 2016-12-08 | 2018-02-28 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | HIGH TEMPERATURE HEAT EXCHANGE PIPE ELEMENT FOR DUSTY FLOW |
-
2014
- 2014-01-24 CN CN201420043777.1U patent/CN203757690U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477563A (en) * | 2016-06-07 | 2017-12-15 | 张家港市华正进出口贸易有限公司 | Coal saving device |
| CN106482565A (en) * | 2016-11-18 | 2017-03-08 | 华中科技大学 | A kind of heat exchanger tube and the shell-and-tube exchanger using the heat exchanger tube |
| CN106482565B (en) * | 2016-11-18 | 2020-05-22 | 华中科技大学 | Heat exchange tube and shell-and-tube heat exchanger adopting same |
| RU177497U1 (en) * | 2016-12-08 | 2018-02-28 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | HIGH TEMPERATURE HEAT EXCHANGE PIPE ELEMENT FOR DUSTY FLOW |
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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: 20180124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |