CN202371162U - Double-channel circular direction sealing structure for air preheater - Google Patents
Double-channel circular direction sealing structure for air preheater Download PDFInfo
- Publication number
- CN202371162U CN202371162U CN2011205143766U CN201120514376U CN202371162U CN 202371162 U CN202371162 U CN 202371162U CN 2011205143766 U CN2011205143766 U CN 2011205143766U CN 201120514376 U CN201120514376 U CN 201120514376U CN 202371162 U CN202371162 U CN 202371162U
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- China
- Prior art keywords
- rotor
- seal
- sealing plate
- sealing
- angle steel
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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 provides a double-channel circular direction sealing structure for an air preheater, which comprises a first sealing plate and a second sealing plate, wherein the first sealing plate is arranged between a hot end stiffening ring and a hot end rotor angle steel; and the second sealing plate is arranged between a cold end stiffening ring and a cold end rotor sealing circular arc plate. The double-channel circular direction sealing structure for the air preheater is characterized in that a first side sealing plate is arranged on the side edge of the first sealing plate; a rotor deformation reserved gap is reserved between the first side sealing plate and the hot end rotor angle steel; an end face sealing plate or a second side sealing plate is arranged on the side edge of the second sealing plate; a rotor deformation reserved gap is reserved between the end face sealing plate and the cold end rotor sealing circular arc plate; and a rotor deformation reserved gap is reserved between the second side sealing plate and a cold end rotor angle steel. According to the double-channel circular direction sealing structure provided by the utility model, the heat exchange efficiency is further ensured and the sealing reliability in the circular direction is improved.
Description
Technical field
The utility model relates to hot junction and the two pass hoop sealing configuration of cold junction in a kind of rotary regenerative air preheater.
Background technique
Rotary regenerative air preheater is a kind of equipment at continuous rotating operation; So between rotor rotated and static shell stiffening ring, have the gap; To make the fume side flue gas directly be leaked to cold junction like this from the hot junction through this passage; The air of air side also directly leaks to the hot junction from cold junction, has influenced heat exchange efficiency greatly.
As shown in Figure 1; The sealing of rotary regenerative air preheater hoop is loaded onto first hoop diaphragm seal 6 and second hoop diaphragm seal 7 through angle steel 5 at hot junction stiffening ring 1, cold junction stiffening ring 2 exactly between hot junction rotor angle steel 3, cold junction rotor seal circular arc plate 4, and the size according to the unit rotor deformation is reserved certain seal clearance between the first hoop diaphragm seal 6 and rotor angle steel 3 and the second hoop diaphragm seal 7 and rotor seal circular arc plate 4.Because the hot mushroom deformation of rotor, the side seal structure is adopted in hoop sealing in hot junction, and end face seal structure is adopted in the sealing of cold junction hoop.
Through using this road circular arc hoop seal arrangement, reduced effectively flue gas from the hot junction to cold junction and air from the amount of leakage of cold junction to the hot junction, thereby guaranteed the heat exchange efficiency of preheater.
In rotary regenerative air preheater hoop seal arrangement; The structure of the first hoop diaphragm seal 6 and the second hoop diaphragm seal 7 is as shown in Figure 2; Top is for installing the slotted hole of diaphragm seal adjustment preset clearance; The slit of being interrupted is waited through on every diaphragm seal, being provided with to be uniformly distributed with in the bottom, bending and adjustment during convenient on-the-spot installation.
Along with unit capacity constantly increases; Heat exchange efficiency to preheater has had higher requirement, and single track hoop seal arrangement is along with the increase of rotor deformation causes the aggravation of wearing and tearing, and causes the diaphragm seal distortion easily and damages; Make that the sealing of preheater hoop is unreliable, influenced the efficient of heat exchange.
Summary of the invention
The purpose of the utility model provides a kind of preheater hoop seal arrangement more reliably.
In order to achieve the above object; The technological scheme of the utility model has provided a kind of air preheater two pass hoop sealing configuration; Comprise be located at first diaphragm seal between hot junction stiffening ring and the hot junction rotor angle steel and be located at the cold junction stiffening ring and cold junction rotor seal circular arc plate between second diaphragm seal; It is characterized in that: the side at said first diaphragm seal is provided with the first side seal sheet; Leave the rotor deformation preset clearance between the first side seal sheet and the hot junction rotor angle steel; Side at said second diaphragm seal is provided with the end sealing strip or the second side seal sheet, leaves the rotor deformation preset clearance between end sealing strip and the cold junction rotor seal circular arc plate, leaves the rotor deformation preset clearance between the second side seal sheet and the cold junction rotor angle steel.
The utility model has increased by one hoop sealing on the basis of original single track sealing; Two pass side seal structure has been adopted in the hot junction, and cold junction can be divided into cold junction two pass hoop double seals structure and two pass hoop single side face mechanical single seal structure again according to the difference of structure.
This two pass hoop sealing configuration that the utility model uses has further guaranteed heat exchange efficiency, has improved the reliability of hoop sealing.
Description of drawings
Fig. 1 is a single track hoop sealing configuration;
Fig. 2 is the structure of hoop diaphragm seal;
Fig. 3 is the two pass hoop sealing configuration that cold junction adopts the Double End structure among the embodiment;
Fig. 4 is the two pass hoop sealing configuration that cold junction adopts the single end face single side face among the embodiment.
Embodiment
For making the utility model more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
The two pass hoop sealing configuration of the cold junction Double End in the present embodiment is as shown in Figure 3, and first diaphragm seal 6 is fixed with being connected through bolt washer and nut with cold junction hoop sealing angle steel 5 with hot junction hoop sealing angle steel 5 respectively after second diaphragm seal 7 is adjusted seal clearance.After the first side seal sheet 8 is installed in the nut of first diaphragm seal 6 and second diaphragm seal, 7 homonymies respectively with end sealing strip 9; Adjust the seal clearance of the first side seal sheet 8 and end sealing strip 9 then; Making wins leaves the rotor deformation preset clearance between side seal sheet 8 and the hot junction rotor angle steel 3, leaves the rotor deformation preset clearance between end sealing strip 9 and the cold junction rotor seal circular arc plate 4.Use nut collar fastening in the outermost of the first side seal sheet 8 and end sealing strip 9 at last.
The two pass hoop sealing configuration of the cold junction single side face single end face in the present embodiment is as shown in Figure 4, and first diaphragm seal 6 is fixed with being connected through the bolt washer nut with cold junction hoop sealing angle steel 5 with hot junction hoop sealing angle steel 5 respectively after the second side seal sheet 11 is adjusted seal clearance.Leave the rotor deformation preset clearance between the second side seal sheet 11 and the cold junction rotor angle steel 10.After second diaphragm seal 7 and the first side seal sheet 8 are installed in the nut of the second side seal sheet 11 and first diaphragm seal, 6 homonymies respectively; Adjust the seal clearance of second diaphragm seal 7 and the first side seal sheet 8 then; Make and leave the rotor deformation preset clearance between second diaphragm seal 7 and the cold junction rotor angle steel 10, use nut collar fastening in the outermost of second diaphragm seal 7 and the first side seal sheet 8 at last.
Claims (1)
1. air preheater two pass hoop sealing configuration; Comprise be located at first diaphragm seal (6) between hot junction stiffening ring (1) and the hot junction rotor angle steel (3) and be located at cold junction stiffening ring (2) and cold junction rotor seal circular arc plate (4) between second diaphragm seal (7); It is characterized in that: the side at said first diaphragm seal (6) is provided with the first side seal sheet (8); Leave the rotor deformation preset clearance between the first side seal sheet (8) and the hot junction rotor angle steel (3); Side at said second diaphragm seal (7) is provided with the end sealing strip (9) or the second side seal sheet (11); Leave the rotor deformation preset clearance between end sealing strip (9) and the cold junction rotor seal circular arc plate (4), leave the rotor deformation preset clearance between the second side seal sheet (11) and the cold junction rotor angle steel (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205143766U CN202371162U (en) | 2011-12-12 | 2011-12-12 | Double-channel circular direction sealing structure for air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205143766U CN202371162U (en) | 2011-12-12 | 2011-12-12 | Double-channel circular direction sealing structure for air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371162U true CN202371162U (en) | 2012-08-08 |
Family
ID=46594866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205143766U Expired - Lifetime CN202371162U (en) | 2011-12-12 | 2011-12-12 | Double-channel circular direction sealing structure for air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489063A (en) * | 2018-11-05 | 2019-03-19 | 李暐 | Rotary regenerative air preheater encapsulating method, self-compensation sealed part and air preheater |
-
2011
- 2011-12-12 CN CN2011205143766U patent/CN202371162U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489063A (en) * | 2018-11-05 | 2019-03-19 | 李暐 | Rotary regenerative air preheater encapsulating method, self-compensation sealed part and air preheater |
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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 |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |