CN201561680U - Plate type structure of heat-transfer element - Google Patents
Plate type structure of heat-transfer element Download PDFInfo
- Publication number
- CN201561680U CN201561680U CN2009202588879U CN200920258887U CN201561680U CN 201561680 U CN201561680 U CN 201561680U CN 2009202588879 U CN2009202588879 U CN 2009202588879U CN 200920258887 U CN200920258887 U CN 200920258887U CN 201561680 U CN201561680 U CN 201561680U
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- plate
- heat transfer
- transfer element
- heat
- location
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Abstract
The utility model relates to a plate type structure of a heat-transfer element, which comprises a flat plate and a curved plate connected with one side of the flat plate. Positioning plates with sinusoid-shaped or approximately sinusoid-shaped sections are arranged on the curved plate at intervals; a top point of the positioning plate is positioned and connected with the flat plate; the positioning plates and corrugated plates are alternately connected to form the curved plate; and a sealed heat-transfer medium channel is formed between adjacent positioning plate and flat plate. The plate type structure has the advantages that the structure is simple, airflow resistance is low, forced heat-transfer efficiency is high, the sealed channel is easy to be cleaned, and the plate type structure is particularly suitable for gas-gas heaters (GGH) and off-pin air preheaters, and can reduce the increased resistance of the gas-gas heaters (GGH) or the off-pin air preheaters caused by clogging, and improve the heat recovery effect.
Description
Technical field
The utility model relates to a kind of member of heat transfer element, specifically is the template structure of heat transfer element of the NUF6 type of a kind of high heat transfer efficient, easy cleaning, is mainly used in the heat radiation of flue gas heater (GGH), denitration preheater.
Background technology
The template structure of heat transfer element is varied, every kind of effect that has every kind, commonly used have templates such as DU3 and NF6, wherein the cross section structure of DU3 heat transfer element as shown in Figure 1, comprise corrugated plating substrate 3 and the curved slab 1 that is connected with the one side, the cross section of curved slab 1 shape that to be (being similar to) sinusoidal location-plate 11 alternately be connected with a V-shaped line 13 forms the heat transfer medium channels of sealing, its corrugated plating substrate 3 complex structures between adjacent two location-plates 11 and substrate 3.The cross section structure of described NF6 heat transfer element as shown in Figure 2, comprise flat board 2 and the curved slab 1 that is connected with the one side, the cross section of this curved slab 1 shape that to be (being similar to) sinusoidal location-plate 11 alternately be connected with straight line 14 forms the heat transfer medium channels of sealing between adjacent two location-plates 11 and dull and stereotyped 2.Facts have proved, the easily stifled ash of DU3 heat transfer element, and easy cleaning not, be not suitable for flue gas desulfurization flue gas heater GGH and out of stock after air preheater, though and NF6 template resistance is low, exchange capability of heat is relatively poor again, and NUF6 template newly developed is an easy cleaning sealing template, and heat exchange property is again than NF6 good plate cut, be applicable to flue gas heater GGH and out of stock after air preheater.
Summary of the invention
The purpose of this utility model just provides a kind of template structure of heat transfer element, to solve the complex structure that prior art exists, gas-flow resistance height, the not problem of easy cleaning.
The technical solution of the utility model is: comprise flat board and the curved slab that is connected with the one side, being provided with cross section at interval on this curved slab is sine curve or the location-plate approximate with sine curve, the summit and the flat board of this location-plate are located by connecting, it is characterized in that: described location-plate and corrugated plating alternately connect and compose described curved slab, form the heat transfer medium channels of sealing between adjacent two location-plates and flat board.
Described curved slab and the dull and stereotyped metal material that adopts are made.
Scribble enamel layer at described curved surface and dull and stereotyped outer surface.
The utility model has the advantages that: simple in structure, the resistance that air communication is crossed is low, pressure heat transfer efficiency height, closed channel cleans easily, be particularly suitable for flue gas heater (GGH) and out of stock air preheater, can reduce flue gas heater (GGH) or out of stock air preheater because of the resistance that stifled ash increases, increase the recuperation of heat effect.
Description of drawings
Fig. 1 is the cross section structure schematic diagram of prior art DU3 heat transfer element;
Fig. 2 is the cross section structure schematic diagram of prior art NF6 heat transfer element;
Fig. 3 is a cross section structure schematic diagram of the present utility model.
The specific embodiment
Referring to Fig. 3, the structure of the utility model NUF6 template is formed with the curved slab 1 that is connected with the one side by dull and stereotyped 2, it is sine curve or location-plate 11 and the corrugated plating 12 approximate with sine curve that this curved slab 1 alternately is provided with the cross section, weld with dull and stereotyped location on the following summit of this location-plate 11, forms the heat transfer medium channels A of sealing between adjacent two location-plates 11 (comprising corrugated plating 12) and dull and stereotyped 2.Curved slab 1 can form by rolling a plurality of location-plates spaced apart 11 on a bulk of corrugated plating, is welded to form the utility model with one flat plate 2 again.Because the heat transfer medium channels A of sealing expansion is a lot, blow grey pressure medium decay slowly, so clean easily.Therefore, adopt the heat transfer element of the utility model NUF6 template can substitute present flue gas heater (GGH) DU3 template heat transfer element commonly used, under the prerequisite that guarantees thermal parameter, use the heat transfer element of NUF6 template lower than the heat transfer element resistance that adopts the DU3 template, easy cleaning, thereby can reduce flue gas heater (GGH) or out of stock air preheater because of the resistance that stifled ash increases, can increase the recuperation of heat effect.
Adopt the heat transfer element of the utility model NUF6 template to use to have in the air preheater after out of stock and replace NF6, the height that can reduce heat transfer element improves heat exchange efficiency, with the identical thermodynamic property of former heat transfer element the time, total pressure loss (flue gas resistance) is reduced.If change cold junction layer heat transfer element the heat transfer element of the utility model NUF6 template of equal altitudes into by NF6, its result increases in the pressure loss (flue gas resistance), but can reduce exhaust gas temperature and improve the recuperation of heat amount and improve boiler efficiency.
Described curved slab 1 and dull and stereotyped 2 can adopt the metal material of corrosion resisting alloy steel plate (as CORTEN), enamel coating steel plate, decarburized steel or other good heat conductivity to make.
Claims (3)
1. the template structure of a heat transfer element, comprise flat board and the curved slab that is connected with the one side, being provided with cross section at interval on this curved slab is sine curve or the location-plate approximate with sine curve, the summit and the flat board of this location-plate are located by connecting, it is characterized in that: described location-plate and corrugated plating alternately connect and compose described curved slab, form the heat transfer medium channels of sealing between adjacent two location-plates and flat board.
2. the template structure of heat transfer element according to claim 1 is characterized in that: described curved slab and the dull and stereotyped metal material that adopts are made.
3. the template structure of heat transfer element according to claim 1 is characterized in that: scribble enamel layer at described curved surface and dull and stereotyped outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202588879U CN201561680U (en) | 2009-11-26 | 2009-11-26 | Plate type structure of heat-transfer element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202588879U CN201561680U (en) | 2009-11-26 | 2009-11-26 | Plate type structure of heat-transfer element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561680U true CN201561680U (en) | 2010-08-25 |
Family
ID=42626826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202588879U Expired - Lifetime CN201561680U (en) | 2009-11-26 | 2009-11-26 | Plate type structure of heat-transfer element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945226A (en) * | 2019-03-12 | 2019-06-28 | 广东电网有限责任公司 | A kind of coal-burning power plant's air preheater Optimizing Reconstruction method and device |
-
2009
- 2009-11-26 CN CN2009202588879U patent/CN201561680U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945226A (en) * | 2019-03-12 | 2019-06-28 | 广东电网有限责任公司 | A kind of coal-burning power plant's air preheater Optimizing Reconstruction method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100825 |