CN103115378A - Demountable type spiral pipe air preheater - Google Patents
Demountable type spiral pipe air preheater Download PDFInfo
- Publication number
- CN103115378A CN103115378A CN2013100857975A CN201310085797A CN103115378A CN 103115378 A CN103115378 A CN 103115378A CN 2013100857975 A CN2013100857975 A CN 2013100857975A CN 201310085797 A CN201310085797 A CN 201310085797A CN 103115378 A CN103115378 A CN 103115378A
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- China
- Prior art keywords
- air preheater
- pipe
- boiler
- steel pipe
- perforated plate
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The invention relates to the technical field of boiler air heaters, and specifically discloses a demountable type spiral pipe air preheater. Currently, the air preheater of an industrial boiler is of a steel pipe welding structure; when a boiler operates and uses burning coal with high sourness and large moisture, a fume steel pipe of the air preheater is blocked, the resisting force of a draught fan is increased, and the capacity and efficiency of the boiler are reduced; the air preheater which is in the steel pipe welding structure is used, the dust accumulated in the pipe is a low temperature cohesive ash, the dredge is not carried out, so that the air preheater is necessarily replaced, and large equipment cost expenditure is brought for an enterprise; and in addition, a steel pipe adopts a light pipe, so the heat-exchange rate is low, and the energy source is wasted. According to the air preheater, the peripheries of an upper pipe plate and a lower pipe plate on the air preheater of the boiler are provided with grooves, seal rings are filled in the grooves, the lower parts of the seal rings of the grooves of the lower pipe plate and clamping rings are welded and fixed, and a screw type steel pipe is hung on the upper pipe plate through a pipe clip.
Description
Technical field
The present invention relates to the boiler air preheater technical field, specifically a kind of detachable helix tube air preheater.
Background technology
At present, the Industrial Boiler air preheater is the steel-pipe welding structure, when boiler operatiopn uses coal-fired that sulfur-bearing is high, moisture is large, causes the air preheater exhaust gases passes to stop up, and the air-introduced machine resistance increment reduces boiler output and efficient.Due to the air preheater that uses the steel-pipe welding structure, in pipe, dust stratification is low temperature bonding knot ash, can't dredge, and causes the essential air preheater of changing, and causes very large cost of equipment expenditure to enterprise.In addition, what steel pipe adopted is light pipe, and heat exchange area is little, and rate of heat exchange is low.Caused the waste of the energy.
Summary of the invention
The purpose of this invention is to provide a kind of detachable helix tube air preheater, can address the deficiencies of the prior art.
Technical scheme of the present invention is to comprise upper perforated plate, middle tube sheet, lower perforated plate, and smoke pipe is spiral steel pipe; Be provided with groove around the upper perforated plate of boiler air preheater and lower perforated plate pore, be filled with sealing ring in groove; The groove sealing ring top of lower perforated plate is welded with trim ring; Spiral steel pipe passes upper perforated plate, middle tube sheet, lower perforated plate, is lifted on upper perforated plate by pipe clamp.
Advantage of the present invention is: because smoke pipe becomes dismountablely, it is comparatively easy that cleaning smoke pipe dust stratification stops up, and solved boiler air preheater smoke pipe dust stratification and stopped up difficult cleaning, and smoke pipe is spiral steel pipe, has improved heat exchange efficiency, has extended duration of service.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
The specific embodiment
1 upper perforated plate, 2 pipe clamps, 3 spiral steel pipes, 4 sealing gaskets, 5 trim rings, 6 lower perforated plates in figure.
Embodiment
As can be seen from Figure 1, comprise upper perforated plate 1, middle tube sheet, lower perforated plate 6, smoke pipe is spiral steel pipe 3; Be provided with groove around the upper perforated plate of boiler air preheater and lower perforated plate pore, be filled with sealing ring 4 in groove; The groove sealing ring top of lower perforated plate 6 is welded with trim ring 5; Spiral steel pipe 3 passes upper perforated plate 1, middle tube sheet, lower perforated plate 6, is lifted on upper perforated plate 1 by pipe clamp 2.Described sealing ring is the fluorubber material.
During maintenance, only need open pipe clamp, can with spiral steel pipe from top or below (air preheater of horizontal type also can be from the left side or the right side in this way) extract out.After having cleared up crock, then assemble back in preheater.
Obviously, the above embodiment of the present invention is only for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give all embodiments exhaustive.Everyly belong to the row that apparent variation that technical scheme of the present invention extends out or change still are in protection scope of the present invention.
Claims (1)
1. an a kind of detachable spiral tube air preheater of detachable helix tube air preheater, comprise upper perforated plate (1), middle tube sheet, lower perforated plate (6), it is characterized in that fume pipe is spiral steel pipe (3); Be provided with groove around the upper perforated plate of boiler air preheater (1) and lower perforated plate (6) pore, be filled with sealing ring (4) in groove; Groove sealing ring (4) top of lower perforated plate (1) is welded with trim ring (5); Spiral steel pipe (3) passes upper perforated plate, middle tube sheet, lower perforated plate, is lifted on upper perforated plate (1) by pipe clamp (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100857975A CN103115378A (en) | 2013-03-18 | 2013-03-18 | Demountable type spiral pipe air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100857975A CN103115378A (en) | 2013-03-18 | 2013-03-18 | Demountable type spiral pipe air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103115378A true CN103115378A (en) | 2013-05-22 |
Family
ID=48413792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100857975A Pending CN103115378A (en) | 2013-03-18 | 2013-03-18 | Demountable type spiral pipe air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103115378A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351727Y (en) * | 1999-01-23 | 1999-12-01 | 沈国华 | Streamline form air preheater |
| CN2418370Y (en) * | 2000-04-25 | 2001-02-07 | 公维平 | Air pre-heating device |
| CN2460867Y (en) * | 2000-09-27 | 2001-11-21 | 周忠平 | Large parameter spiral groove pipe air preheater |
| CN101216263A (en) * | 2008-01-18 | 2008-07-09 | 河北工业大学 | Pipe shell type heat-exchanger |
| CN203147807U (en) * | 2013-03-18 | 2013-08-21 | 孙连启 | Detachable type spiral pipe air pre-heater |
-
2013
- 2013-03-18 CN CN2013100857975A patent/CN103115378A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351727Y (en) * | 1999-01-23 | 1999-12-01 | 沈国华 | Streamline form air preheater |
| CN2418370Y (en) * | 2000-04-25 | 2001-02-07 | 公维平 | Air pre-heating device |
| CN2460867Y (en) * | 2000-09-27 | 2001-11-21 | 周忠平 | Large parameter spiral groove pipe air preheater |
| CN101216263A (en) * | 2008-01-18 | 2008-07-09 | 河北工业大学 | Pipe shell type heat-exchanger |
| CN203147807U (en) * | 2013-03-18 | 2013-08-21 | 孙连启 | Detachable type spiral pipe air pre-heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130522 |