CN203023108U - Labyrinth seal - Google Patents
Labyrinth seal Download PDFInfo
- Publication number
- CN203023108U CN203023108U CN 201220743190 CN201220743190U CN203023108U CN 203023108 U CN203023108 U CN 203023108U CN 201220743190 CN201220743190 CN 201220743190 CN 201220743190 U CN201220743190 U CN 201220743190U CN 203023108 U CN203023108 U CN 203023108U
- Authority
- CN
- China
- Prior art keywords
- seal
- sealing
- labyrinth seal
- compressing tablet
- tablet
- 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
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a labyrinth seal. The labyrinth seal comprises a sealing tablet, a sealing fin, a sunk screw and a sealing member, wherein multiple longitudinally-arranged forging sealing tablets are uniformly arranged in the forging sealing member of the labyrinth seal; the sealing tablet is tightly matched with the inner wall of the sealing member; and the sealing fin is inlaid on the inner wall of the sealing member and matched with the sealing tablet. According to the labyrinth seal, the sealing fin which is seriously worn can be separately replaced, so that the replacing cost is greatly reduced; the labyrinth seal can be assembled or disassembled conveniently; and the fit clearance between the sealing fin and a rotor can be properly reduced, so that the interstage efficiency of a fan is greatly improved. Under a design working condition, the efficiency of the labyrinth seal is about 1-2% higher than that of a cast aluminum labyrinth seal. The labyrinth seal is simple in structure and can be widely applied to the industry.
Description
Technical field
The utility model relates to centrifugal blower, and is particularly a kind of for the labyrinth seal on centrifugal blower.
Background technique
Centrifugal blower labyrinth seal common used material is cast aluminium ZL104 material, and sealing belongs to easily damaged parts, in case the just necessary replacing of its serious wear, in order to avoid the excessive leakage rate that causes of blower inner rotator and stator gap increases.But select cast aluminium ZL104 material as labyrinth seal, its replacement cost is higher, and leakage rate is bigger than normal, can not satisfy user's demand.
The model utility content
The model utility purpose: in order to overcome the deficiencies in the prior art, the utility model provides a kind of sealing replacement cost low, and blower internal leakage amount is little, the labyrinth seal that fan efficiency is high.
The technical solution adopted in the utility model: a kind of labyrinth seal, comprise sealing compressing tablet, diaphragm seal, sunk screw and seal, evenly be provided with many forging sealing compressing tablets that vertically arrange in the forging seal of described labyrinth seal, sealing compressing tablet and seal inwall closely cooperate, on described seal inwall also cover be embedded with diaphragm seal, diaphragm seal also coordinates with the sealing compressing tablet simultaneously.
Further, described sealing compressing tablet, diaphragm seal and seal are provided with and coordinate the screw that communicates, and sealing compressing tablet, diaphragm seal are fixedly connected with by sunk screw with seal.
Described diaphragm seal is the teflon material, detachably changes as its serious wear.
Beneficial effect: compared with prior art, labyrinth seal of the present utility model such as diaphragm seal serious wear can only need to change diaphragm seal, greatly reduce replacement cost, matching gap in its dismounting aspect and design between diaphragm seal and rotor can suitably reduce, and has greatly improved blower inter-stage efficient.Its efficient is approximately than high 1 ~ 2% left and right of cast aluminium labyrinth seal under design conditions.The utility model is simple in structure, is fit to widely used within the industry.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of labyrinth seal as shown in Figure 1, comprise sealing compressing tablet 1, diaphragm seal 2, sunk screw 3 and seal 4, the interior forgings sealing compressing tablets 1 that evenly are provided with many vertical settings of the forging seal 4 of labyrinth seal, sealing compressing tablet 1 closely cooperates with seal 4 inwalls, also overlap on seal 4 inwalls and be embedded with diaphragm seal 2, diaphragm seal 2 also coordinates with sealing compressing tablet 1 simultaneously, sealing compressing tablet 1, diaphragm seal 2 and seal 4 are provided with and coordinate the screw that communicates, and sealing compressing tablet 1, diaphragm seal 2 are fixedly connected with by sunk screw 3 with seal 4.
Claims (2)
1. labyrinth seal, it is characterized in that: comprise sealing compressing tablet, diaphragm seal, sunk screw and seal, evenly be provided with many forging sealing compressing tablets that vertically arrange in the forging seal of described labyrinth seal, sealing compressing tablet and seal inwall closely cooperate, on described seal inwall also cover be embedded with diaphragm seal, diaphragm seal also coordinates with the sealing compressing tablet simultaneously.
2. a kind of labyrinth seal according to claim 1 is characterized in that: described sealing compressing tablet, diaphragm seal and seal are provided with and coordinate the screw that communicates, and sealing compressing tablet, diaphragm seal are fixedly connected with by sunk screw with seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743190 CN203023108U (en) | 2012-12-29 | 2012-12-29 | Labyrinth seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743190 CN203023108U (en) | 2012-12-29 | 2012-12-29 | Labyrinth seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023108U true CN203023108U (en) | 2013-06-26 |
Family
ID=48647097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220743190 Expired - Fee Related CN203023108U (en) | 2012-12-29 | 2012-12-29 | Labyrinth seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023108U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899569A (en) * | 2012-12-29 | 2014-07-02 | 南通大通宝富风机有限公司 | Labyrinth seal |
| CN111140535A (en) * | 2019-11-27 | 2020-05-12 | 西安航天动力研究所 | Sealing ring and centrifugal wheel sealing structure suitable for low-temperature environment |
-
2012
- 2012-12-29 CN CN 201220743190 patent/CN203023108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899569A (en) * | 2012-12-29 | 2014-07-02 | 南通大通宝富风机有限公司 | Labyrinth seal |
| CN111140535A (en) * | 2019-11-27 | 2020-05-12 | 西安航天动力研究所 | Sealing ring and centrifugal wheel sealing structure suitable for low-temperature environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203532314U (en) | Labyrinth impeller ring clearance structure | |
| CN203023108U (en) | Labyrinth seal | |
| CN202900789U (en) | Novel floating opening ring structure | |
| CN204663959U (en) | A kind of air intake seal arrangement putting forward effect for centrifugal blower | |
| CN203379920U (en) | Bearing block for roller press | |
| CN202606609U (en) | Simple flanging machine | |
| CN204327447U (en) | A kind of energy-saving air compressor | |
| CN204476770U (en) | A kind of single stage single suction cantilever type rear flank charging No leakage Pulp pump | |
| CN103899569A (en) | Labyrinth seal | |
| CN204692112U (en) | Punching press vertical multi-stage multiple exit ports water pump | |
| CN204327382U (en) | Large-scale mixed turbine-generator units stator Intermediate shaft sleeve sealing configuration | |
| CN204025687U (en) | A kind of seal arrangement of medium-speed pulverizer support | |
| CN103899574A (en) | Free-form surface three-dimensional flow impeller of vacuum pump | |
| CN201908800U (en) | High-ressure gas compressor piston | |
| CN202883365U (en) | Small-flow water pump | |
| CN203925954U (en) | A kind of five cylinder planar separator pumps | |
| CN204357763U (en) | A kind of shaft seal structure | |
| CN204942547U (en) | Rotary type vacuum seal arrangement | |
| CN203926035U (en) | The light-duty slag stock pump of a kind of corrosion-proof wear | |
| CN203758292U (en) | Aluminum bar heating furnace exhaust gas recycling device | |
| CN204372167U (en) | A kind of efficient shaft seal | |
| CN205260303U (en) | Low noise pin formula high pressure vane pump and blade thereof | |
| CN204025669U (en) | A kind of novel sealing structure | |
| CN204003748U (en) | Thin cylinder | |
| CN202902232U (en) | Wall washer seal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131229 |