CN2513068Y - Pipe type heat transfer element - Google Patents
Pipe type heat transfer element Download PDFInfo
- Publication number
- CN2513068Y CN2513068Y CN 01279521 CN01279521U CN2513068Y CN 2513068 Y CN2513068 Y CN 2513068Y CN 01279521 CN01279521 CN 01279521 CN 01279521 U CN01279521 U CN 01279521U CN 2513068 Y CN2513068 Y CN 2513068Y
- Authority
- CN
- China
- Prior art keywords
- heat transfer
- transfer element
- type heat
- tubular type
- metal pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model belongs to the heat exchanging technical field, disclosing a pipe type heat transfer element for boiler air preheater. The main technical advantages includes that the inner wall of the metal pipe with suppressing helix groove in the straight tube or the inner and outside wall. The utility model solves the problem of abrasion of the inlet opening and the low temperature corrosion of the air outlet for the heat exchanging pipe, and prolongs the use life of the heat exchanging pipe.
Description
Described field:
The utility model belongs to technical field of heat exchange, relates generally to the heat exchanger tube in the boiler air preheater.
Background technology:
The heat exchanger tube that is used for the boiler of power plant air preheater, owing to flow through the multiple corrosive deposit that contains a large amount of solid belongings in the flue gas in the heat exchanger tube and comprise sulfur dioxide, ubiquity the problem of top air inlet serious wear and bottom cold end corrosion, and this has a strong impact on the service life of boiler air preheater.
Summary of the invention:
The purpose of this utility model just provides a kind of tubular type heat transfer element that can overcome wearing and tearing of metal heat exchanger tube air inlet and air outlet cold end corrosion.
The technical scheme of tubular type heat transfer element comprises the metal pipe barrel of both ends open, has fired enamel layer on its inwall.And this enamel layer thickness is between 0.1-0.5mm, and length can decide generally to be selected between the 100-6000mm according to metal pipe barrel length; On the wall of metal pipe barrel, be suppressed with single line or multi-thread helical groove arranged side by side in addition; Metal pipe barrel also can be smooth straight tube.
The tubular type heat transfer element that the utility model proposed is compared with prior art, because one deck enamel layer of in the 100-6000mm scope at the two ends of heat exchanger tube, firing, have high abrasion, high anti-characteristics such as rotten, smooth, make the abrasion resistance of heat exchanger tube air inlet strengthen greatly, the cold end corrosion of air outlet reduces greatly, and remarkable to the accumulatingdust effect, the service life of having improved air preheater.
The drawing explanation:
Fig. 1: the sectional structure chart of straight pipe type heat transfer element;
Fig. 2: the sectional structure chart of the tubular type heat transfer element of band helical groove;
Fig. 3: tubular type heat transfer element structural representation with multi-thread helical groove.
Embodiment:
Be illustrated in figure 1 as the cross-sectional view of straight pipe type heat transfer element.Its structure includes both ends open and is the metal pipe barrel 3 of mouth 1 and exhaust opening 2 into, firing a layer thickness on the internal face of this socket is the smooth enamel layer 5 of 0.1-0.5mm, its length L is decided according to the length of metal tube, generally between 100-6000mm.This smooth enamel layer can realize by the isolation of the flue gas in the metal pipe barrel with metal pipe-wall, played the effect of abrasionproof, anticorrosion, accumulatingdust.For having the heat transfer element sectional structure chart of single-wire helix groove, promptly on the wall of metal pipe barrel, be suppressed with helical groove 6 as described in Figure 2, increased the heat exchange area of wall, improved heat exchange efficiency.Wherein, helical groove 6 both can be a single line groove as shown in Figure 2, also can be the multi-thread helical groove of suppressing on its wall 7 as shown in Figure 3.
Claims (7)
1, a kind of tubular type heat transfer element comprises the metal pipe barrel of both ends open, it is characterized by on the inwall of described metal pipe barrel and has fired enamel layer.
2, a kind of tubular type heat transfer element of enamel layer as claimed in claim 1 is characterized by described thickness between 0.1-0.5mm.
3, a kind of tubular type heat transfer element as claimed in claim 1 or 2, the length that it is characterized by described enamel layer is 100-6000mm.
4, require described a kind of tubular type heat transfer element as right 1, it is characterized by described metal tube is smooth straight.
5, a kind of tubular type heat transfer element as claimed in claim 1 is characterized by, and the spiral that is suppressed with inside and outside correspondence on the wall of described metal pipe barrel is recessed poor.
6, a kind of tubular type heat transfer element as claimed in claim 5, it is characterized by described helical groove is the single-wire helix groove.
7, a kind of tubular type heat transfer element as claimed in claim 1, it is characterized by described helical groove is multi-thread helicla flute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01279521 CN2513068Y (en) | 2001-12-26 | 2001-12-26 | Pipe type heat transfer element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01279521 CN2513068Y (en) | 2001-12-26 | 2001-12-26 | Pipe type heat transfer element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2513068Y true CN2513068Y (en) | 2002-09-25 |
Family
ID=33682737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01279521 Expired - Fee Related CN2513068Y (en) | 2001-12-26 | 2001-12-26 | Pipe type heat transfer element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2513068Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006066A (en) * | 2019-02-28 | 2019-07-12 | 山东恒祥环保设备有限公司 | A kind of preparation method of novel silicon titanium membrane tube |
-
2001
- 2001-12-26 CN CN 01279521 patent/CN2513068Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006066A (en) * | 2019-02-28 | 2019-07-12 | 山东恒祥环保设备有限公司 | A kind of preparation method of novel silicon titanium membrane tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |