CN203147807U - Detachable type spiral pipe air pre-heater - Google Patents
Detachable type spiral pipe air pre-heater Download PDFInfo
- Publication number
- CN203147807U CN203147807U CN2013201223794U CN201320122379U CN203147807U CN 203147807 U CN203147807 U CN 203147807U CN 2013201223794 U CN2013201223794 U CN 2013201223794U CN 201320122379 U CN201320122379 U CN 201320122379U CN 203147807 U CN203147807 U CN 203147807U
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- China
- Prior art keywords
- pipe
- air pre
- heaters
- perforated plate
- pipes
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- Expired - Fee Related
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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 utility model relates to the technical field of boiler air pre-heaters, in particular to a detachable type spiral pipe air pre-heater. At present, industrial boiler air pre-heaters are all of steel pipe welding structures, and therefore when boilers operate by combusting fuel coal which is high in sulphur content and water content, flue gas steel pipes of the air pre-heaters will be blocked, resistance of induced draft fans is increased, and output and efficiency of the boilers are reduced. As for the air pre-heaters of the steel pipe welding structures, accumulated ash in the pipes are low-temperature cohesive ash, the pipes cannot be dredged, and therefore the air pre-heaters need to be replaced, and a great deal of equipment expenditure is brought to enterprises. In addition, the steel pipes are unthreaded pipes which are low in heat exchange rate, and therefore waste of energy is caused. According to the detachable type spiral pipe air pre-heater, peripheries of pipe holes of an upper pipe plate and a lower pipe plate are provided with grooves, and sealing rings are filled in the grooves; pressing rings are fixedly welded to the lower portions of the sealing rings of the grooves of the lower pipe plate, and a spiral steel pipe is suspended on the upper pipe plate through pipe clamps. When the detachable type spiral pipe air pre-heater is blocked, the spiral steel pipe is disassembled easily, and accumulated dust is cleaned.
Description
Technical field
The utility model 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 big coal-fired of sulfur-bearing height, moisture, causes the air preheater exhaust gases passes to stop up, and the air-introduced machine resistance increases, and reduces boiler output and efficient.Owing to use the welded air preheater of steel pipe, dust stratification is low temperature bonding knot ash in the pipe, can't dredge, and causes the essential air preheater of changing, and causes very big 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 utility model provides a kind of detachable helix tube air preheater, can address the deficiencies of the prior art.
The technical solution of the utility model 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 the lower perforated plate pore, be filled with sealing ring in the 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 the upper perforated plate by pipe clamp.
The utility model has the advantages that: because that smoke pipe becomes is dismountable, 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 prolonged duration of service.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 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 among the 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 1 of boiler air preheater and lower perforated plate 6 pores, be filled with sealing ring 4 in the groove; Groove sealing ring 4 tops of lower perforated plate are welded with trim ring 5; Spiral steel pipe 3 passes upper perforated plate 1, middle tube sheet, lower perforated plate 6, is lifted on the 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, assemble back in the preheater again
Claims (1)
1. a detachable helix tube air preheater comprises 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 the groove; Groove sealing ring (4) top of lower perforated plate (6) is welded with trim ring; Spiral steel pipe (3) passes upper perforated plate, middle tube sheet, lower perforated plate, is lifted on the upper perforated plate (1) by pipe clamp (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201223794U CN203147807U (en) | 2013-03-18 | 2013-03-18 | Detachable type spiral pipe air pre-heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201223794U CN203147807U (en) | 2013-03-18 | 2013-03-18 | Detachable type spiral pipe air pre-heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203147807U true CN203147807U (en) | 2013-08-21 |
Family
ID=48975327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201223794U Expired - Fee Related CN203147807U (en) | 2013-03-18 | 2013-03-18 | Detachable type spiral pipe air pre-heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203147807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115378A (en) * | 2013-03-18 | 2013-05-22 | 孙连启 | Demountable type spiral pipe air preheater |
| CN104990422A (en) * | 2015-07-21 | 2015-10-21 | 宁波博汇化工科技股份有限公司 | Smoke heat recycling device for oil refining heating furnace |
-
2013
- 2013-03-18 CN CN2013201223794U patent/CN203147807U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115378A (en) * | 2013-03-18 | 2013-05-22 | 孙连启 | Demountable type spiral pipe air preheater |
| CN104990422A (en) * | 2015-07-21 | 2015-10-21 | 宁波博汇化工科技股份有限公司 | Smoke heat recycling device for oil refining heating furnace |
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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: 20130821 Termination date: 20150318 |
|
| EXPY | Termination of patent right or utility model |