CN208124354U - Rotary regenerative air heater fixed interval (FI) sealing structure - Google Patents
Rotary regenerative air heater fixed interval (FI) sealing structure Download PDFInfo
- Publication number
- CN208124354U CN208124354U CN201820644126.6U CN201820644126U CN208124354U CN 208124354 U CN208124354 U CN 208124354U CN 201820644126 U CN201820644126 U CN 201820644126U CN 208124354 U CN208124354 U CN 208124354U
- Authority
- CN
- China
- Prior art keywords
- air heater
- girder steel
- regenerative air
- rotary regenerative
- shaped
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Air Supply (AREA)
Abstract
The utility model relates to rotary regenerative air heater, specifically a kind of rotary regenerative air heater fixed interval (FI) sealing structure.The utility model solves the problems, such as that existing diaphragm seal sealing effect when hot bending deformation occurs for rotor radial partition is deteriorated.Rotary regenerative air heater fixed interval (FI) sealing structure, fanning strip, U-shaped including rotary regenerative air heater seal girder steel, strength plate, bar shaped diaphragm seal, several groups fastening bolt；The quantity of U-shaped sealing girder steel is twice of the quantity of the rotor radial partition of rotary regenerative air heater；Each U-shaped sealing girder steel is buckled in hot end and the cold end of each rotor radial partition correspondingly；Lateral surface of the fixing end end face of each U-shaped sealing girder steel with the rotor center cylinder of rotary regenerative air heater is fixed, and the fixing end of each U-shaped sealing girder steel with corresponding rotor radial partition pin joint.The utility model is suitable for rotary regenerative air heater.
Description
Technical field
The utility model relates to rotary regenerative air heater, specifically a kind of rotary regenerative air heater fixed interval (FI) sealing structure.
Background technique
Rotary regenerative air heater is the flue gas tail end heat-exchanger rig that thermal power plant large-sized boiler generallys use.It is rotary empty pre-
Device in the process of running, exists since there are dynamic and static gaps between its rotor and fanning strip, and between its fume side and air side
Leeway（The wind pressure of fume side is less than the wind pressure of air side）, cause the air of air side that can leak into flue gas by dynamic and static gaps
Thus side generates air leakage phenomena, to seriously affect the operational efficiency and economy of boiler.In order to overcome the above problem, at present
The method generallyd use is the fixing seal piece on the rotor radial partition of rotary regenerative air heater, so that diaphragm seal and rotary sky
Seal clearance is formed between the fanning strip of pre- device, and inleakage is then reduced by seal clearance.However practice have shown that, it is existing close
Mounting is since self structure is limited, and there are the following problems：Since the rotor of rotary regenerative air heater is during rotation by cold and hot friendship
For effect, so that hot bending deformation can occur for rotor radial partition, so that diaphragm seal can be sent out with rotor radial partition
Change shape, so that seal clearance changes, so that sealing effect is deteriorated.Based on this, it is necessary to invent a kind of complete
New sealing structure, with solve existing diaphragm seal when hot bending deformation occurs for rotor radial partition sealing effect be deteriorated ask
Topic.
Summary of the invention
The utility model in order to solve existing diaphragm seal rotor radial partition occur hot bending deformation when sealing effect
The problem of variation, provides a kind of rotary regenerative air heater fixed interval (FI) sealing structure.
The utility model adopts the following technical scheme that realization：
Rotary regenerative air heater fixed interval (FI) sealing structure, fanning strip, U-shaped including rotary regenerative air heater seal girder steel, strength
Plate, bar shaped diaphragm seal, several groups fastening bolt；
The quantity of U-shaped sealing girder steel is twice of the quantity of the rotor radial partition of rotary regenerative air heater；Each U-shaped sealing
Girder steel is buckled in hot end and the cold end of each rotor radial partition correspondingly；The fixing end end face of each U-shaped sealing girder steel
Lateral surface with the rotor center cylinder of rotary regenerative air heater is fixed, and each U-shaped sealing girder steel fixing end with it is corresponding
Rotor radial partition pin joint；
It is buckled in the slot inner bottom surface and each rotor radial partition of the U-shaped sealing girder steel in the hot end of each rotor radial partition
Hot end end face contact correspondingly；It is buckled in the slot inner bottom surface of the U-shaped sealing girder steel of the cold end of each rotor radial partition
There are gaps correspondingly between the cold end end face of each rotor radial partition；
The quantity of strength plate is consistent with the U-shaped sealing quantity of girder steel；Each strength plate is fixedly welded on each U-shaped correspondingly
It seals in the middle part of the slot outer bottom of girder steel, and the surface of each strength plate penetrates through and offers one group of fastening screw hole；
The quantity of bar shaped diaphragm seal is consistent with the quantity of strength plate, and the surface of each bar shaped diaphragm seal penetrates through and offers one
Vertical hole of group；
Each group fastening bolt passes through vertical hole of each group correspondingly and screws in each group fastening screw hole；
Each bar shaped diaphragm seal exceeds each strength plate correspondingly and is formed between the fanning strip of rotary regenerative air heater
Seal clearance.
When work, the position of bar shaped diaphragm seal can be adjusted by fastening bolt and vertical hole, thus to close
The size in envelope gap is adjusted, to reduce inleakage by seal clearance.During the work time, as shown in Fig. 3 ~ Fig. 4,
When hot bending deformation occurs for rotor radial partition（As shown in phantom in FIG., the on-fixed end of rotor radial partition occurs downward
Bending）When, since the on-fixed end of each U-shaped sealing girder steel is not fixed with rotor radial partition（Each U-shaped sealing girder steel
On-fixed end is in free state in the axial direction, and cantilever beam state is consequently formed）, so that each U-shaped sealing girder steel will not
As rotor radial partition deforms（It can only be radially expanded）.In other words, no matter how rotor radial partition deforms, often
A U-shaped sealing girder steel remains stationary so that seal clearance be kept fixed it is constant so that sealing effect keeps steady
It is fixed.
Based on the above process, compared with existing diaphragm seal, rotary regenerative air heater fixed interval (FI) described in the utility model is close
Seal structure is by using brand new, so that seal clearance is kept fixed not when hot bending deformation occurs for rotor radial partition
Become, so that sealing effect keeps stablizing when hot bending deformation occurs for rotor radial partition, to effectively control back
Inleakage in rotatable air preheater operational process, and then the operational efficiency and economy of boiler has been effectively ensured.In addition, this is practical
It is novel to have good, small investment small to former air preheater change amount, short time limit, sealing effect, long service life, maintenance workload small etc.
Advantage.
The utility model is structurally reasonable, ingenious in design, efficiently solves existing diaphragm seal in rotor radial partition and heat occurs
The problem of sealing effect is deteriorated when state bending deformation is suitable for rotary regenerative air heater.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the working condition of the utility model with reference to figure.
Fig. 4 is the right view of Fig. 3.
In figure：1-U shape seals girder steel, 2- strength plate, 3- bar shaped diaphragm seal, 4- fastening bolt, turn of 5- rotary regenerative air heater
Sub- radial direction partition, the rotor center cylinder of 6- rotary regenerative air heater, the vertical hole 7-, 8- pin, the sector of 9- rotary regenerative air heater
Plate, 10-U shape seal the fixing end end face of girder steel.
Specific embodiment
Rotary regenerative air heater fixed interval (FI) sealing structure, fanning strip 9 including rotary regenerative air heater, U-shaped sealing girder steel 1,
Strength plate 2, bar shaped diaphragm seal 3, several groups fastening bolt 4；
The quantity of U-shaped sealing girder steel 1 is twice of the quantity of the rotor radial partition 5 of rotary regenerative air heater；Each U-shaped is close
Envelope girder steel 1 is buckled in hot end and the cold end of each rotor radial partition 5 correspondingly；The fixing end of each U-shaped sealing girder steel 1
Lateral surface of the end face 10 with the rotor center cylinder 6 of rotary regenerative air heater is fixed, and the fixing end of each U-shaped sealing girder steel 1 is equal
With corresponding 5 pin joint of rotor radial partition；
Be buckled in the hot end of each rotor radial partition 5 U-shaped sealing girder steel 1 slot inner bottom surface and each rotor radial every
The hot end end face of plate 5 contacts correspondingly；It is buckled in the slot of U-shaped sealing girder steel 1 of the cold end of each rotor radial partition 5
There are gaps correspondingly between bottom surface and the cold end end face of each rotor radial partition 5；
The quantity of strength plate 2 is consistent with the U-shaped sealing quantity of girder steel 1；Each strength plate 2 is fixedly welded on each correspondingly
U-shaped seals in the middle part of the slot outer bottom of girder steel 1, and the surface of each strength plate 2 penetrates through and offers one group of fastening screw hole；
The quantity of bar shaped diaphragm seal 3 is consistent with the quantity of strength plate 2, and the surface of each bar shaped diaphragm seal 3 penetrates through and opens up
There is one group of vertical hole 7；
Each group fastening bolt 4 passes through vertical hole 7 of each group correspondingly and screws in each group fastening screw hole；
Each bar shaped diaphragm seal 3 exceeds each strength plate 2 and the shape between the fanning strip of rotary regenerative air heater 9 correspondingly
At seal clearance.
When it is implemented, the fixing end of each U-shaped sealing girder steel 1 pass through a pair of of pin 8 and corresponding rotor radial every
5 pin joint of plate.The bar shaped diaphragm seal 3 is made of spring steel.
Claims (3)
1. a kind of rotary regenerative air heater fixed interval (FI) sealing structure, it is characterised in that：Fanning strip including rotary regenerative air heater
（9）, U-shaped seal girder steel（1）, strength plate（2）, bar shaped diaphragm seal（3）, several groups fastening bolt（4）；
U-shaped seals girder steel（1）Quantity be rotary regenerative air heater rotor radial partition（5）Twice of quantity；Each U-shaped is close
Seal girder steel（1）It is buckled in each rotor radial partition correspondingly（5）Hot end and cold end；Each U-shaped seals girder steel（1）'s
Fixing end end face（10）With the rotor center cylinder of rotary regenerative air heater（6）Lateral surface fix, and each U-shaped seal girder steel
（1）Fixing end with corresponding rotor radial partition（5）Pin joint；
It is buckled in each rotor radial partition（5）Hot end U-shaped seal girder steel（1）Slot inner bottom surface and each rotor radial every
Plate（5）Hot end end face contact correspondingly；It is buckled in each rotor radial partition（5）Cold end U-shaped seal girder steel（1）
Slot inner bottom surface and each rotor radial partition（5）Cold end end face between there are gaps correspondingly；
Strength plate（2）Quantity and U-shaped seal girder steel（1）Quantity it is consistent；Each strength plate（2）It is fixedly welded on correspondingly each
A U-shaped seals girder steel（1）Slot outer bottom in the middle part of, and each strength plate（2）Surface penetrate through and offer one group of fastening screw hole；
Bar shaped diaphragm seal（3）Quantity and strength plate（2）Quantity it is consistent, and each bar shaped diaphragm seal（3）Surface penetrate through and open
Equipped with one group of vertical hole（7）；
Each group fastening bolt（4）Vertical hole of each group is passed through correspondingly（7）It screws in each group fastening screw hole；
Each bar shaped diaphragm seal（3）Exceed each strength plate correspondingly（2）And the fanning strip with rotary regenerative air heater（9）Between
Form seal clearance.
2. rotary regenerative air heater fixed interval (FI) according to claim 1 sealing structure, it is characterised in that：Each U-shaped sealing
Girder steel（1）Fixing end pass through a pair of of pin（8）With corresponding rotor radial partition（5）Pin joint.
3. rotary regenerative air heater fixed interval (FI) according to claim 1 or 2 sealing structure, it is characterised in that：The bar shaped
Diaphragm seal（3）It is made of spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820644126.6U CN208124354U (en) | 2018-05-02 | 2018-05-02 | Rotary regenerative air heater fixed interval (FI) sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820644126.6U CN208124354U (en) | 2018-05-02 | 2018-05-02 | Rotary regenerative air heater fixed interval (FI) sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208124354U true CN208124354U (en) | 2018-11-20 |
Family
ID=64187111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820644126.6U Active CN208124354U (en) | 2018-05-02 | 2018-05-02 | Rotary regenerative air heater fixed interval (FI) sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208124354U (en) |
-
2018
- 2018-05-02 CN CN201820644126.6U patent/CN208124354U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201514151U (en) | Rotary air preheater sealing device | |
| CN202267079U (en) | Sealing device for rotary air preheater | |
| CN204574097U (en) | Air preheater and hot junction radial seal structure thereof | |
| CN208124354U (en) | Rotary regenerative air heater fixed interval (FI) sealing structure | |
| CN106705111A (en) | Air preheater stationary self-compensation sealing fin and sealing system comprising same | |
| CN201992684U (en) | Sealing device for rotary air preheater | |
| CN201425316Y (en) | Contact type sealing structure applied to rotary air pre-heater | |
| CN105570462A (en) | Elastic contact type sealing device for rotary air preheater | |
| CN210511761U (en) | Elastic turning plate type rotor radial sealing device applied to air preheater | |
| CN207661815U (en) | Floating regenerative air heater hot junction radial sealing system | |
| CN207247262U (en) | A kind of rotary regenerative air preheater sealing structure | |
| US20130192041A1 (en) | Forced oscillation seals for air to gas leaks reduction in regenerative air preheaters | |
| CN207065618U (en) | Boiler air preheater hot junction radial seal compensation device | |
| CN202733937U (en) | Wind film sealing system for rotary air preheater | |
| CN206018695U (en) | Rotary regenerative air preheater elastic sealing device | |
| CN205561622U (en) | Setting is at articulated type elastic sealing device of air preheater cold junction | |
| CN211854078U (en) | Air heater sector plate brush type sealing system | |
| CN201611109U (en) | Self-adaptive sealing component for a rotary type air preheater | |
| CN112524631A (en) | Long-life sealing device for rotary air preheater of thermal power boiler | |
| CN206669792U (en) | A kind of fixed self-compensation sealed piece of air preheater and include its sealing system | |
| CN113154440A (en) | Pressurization sealing system suitable for rotary air preheater | |
| CN216845860U (en) | Suspended sealing device of rotary heat exchanger | |
| CN104913330A (en) | Air preheater and hot-end radial sealing device thereof | |
| CN205717301U (en) | Spring elongation formula air preheat sealing device | |
| CN205423830U (en) | Rotation air preheater springiness contaction formula sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 030006 No.3, Zhongxin North Street, Shanxi demonstration area, Taiyuan City, Shanxi Province Patentee after: Jinkong power Shanxi Engineering Co.,Ltd. Address before: 030006 No. 10, South 1st Street, Jinyang street, high tech Zone, Taiyuan City, Shanxi Province Patentee before: SHANXI ZHANGZE POWER ENGINEERING Co.,Ltd. |