CN201972950U - Cylindrical multilevel centrifugal compressor stator - Google Patents
Cylindrical multilevel centrifugal compressor stator Download PDFInfo
- Publication number
- CN201972950U CN201972950U CN2010202487387U CN201020248738U CN201972950U CN 201972950 U CN201972950 U CN 201972950U CN 2010202487387 U CN2010202487387 U CN 2010202487387U CN 201020248738 U CN201020248738 U CN 201020248738U CN 201972950 U CN201972950 U CN 201972950U
- Authority
- CN
- China
- Prior art keywords
- dividing plate
- end cap
- centrifugal compressor
- compressor stator
- partition board
- 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
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Abstract
The utility model relates to the field of coal chemical engineering equipment, in particular to a cylindrical multilevel centrifugal compressor stator, which comprises a case, a left end cap, a right end cap, a partition board bundle, tooling bolts and nuts, sealing rings and adjusting gaskets. The partition board bundle consists of partition boards which are connected via the tooling bolts, annular grooves are arranged on end surfaces of the partition boards, the rubber sealing rings are embedded in the annular grooves, and the adjusting gaskets are in spot welding on the partition board at the tail end of the partition board bundle. The cylindrical multilevel centrifugal compressor stator resolves the problem of blowby among the partition boards, reduces gaps of the partition board bundle in the case, and prevents the root of a screw stem from being broken.
Description
Technical field
The utility model relates to the Coal Chemical Industry apparatus field, particularly tubular multistage centrifugal compressor stator.
Background technique
Tubular multistage centrifugal compressor stator mainly is made up of parts such as dividing plate bundle, casing (cylindrical shell), left and right sides end caps, the dividing plate bundle is stacked by some piece dividing plates and is assembled into one, become overall structure by many frock screw rod tensions, the frock screw rod mainly plays the assembling effect, does not stress during compressor operating.After the rotor assembling, integral body is packed in the casing, seal two end cap at last, when compressor stator is assembled in cold conditions, between dividing plate bundle and right end cap, leave the 1.5mm clearance for expansion by former design, during hot operation, this gap smaller of this heat expansion even be zero, ideal state should be for zero, if this excesssive gap, poor greater than the free elongation of dividing plate bundle heat expansion, frock screw rod heat expansion elongation, screw rod elongation sum allowable and housing heat expansion elongation, the frock screw rod will rupture.In addition, because there is not the software sealing, be prone to gas leakage between each end face of dividing plate, the gas percussion screw rod that spills also can make screw rod fracture occur.More than two aspect reasons be to cause the regular fracture of this compressor frock screw rod, post-rift screw rod does not stop rotation, string is moving, the right end cap phenomenon occurs penetrating, influences compressor long period, safety, stable operation under the impact of air-flow between dividing plate.
Summary of the invention
The purpose of this utility model is to overcome problems of the prior art, and a kind of tubular multistage centrifugal compressor stator is provided.
The technical solution of the utility model is:
A kind of tubular multistage centrifugal compressor stator, comprise casing, left end cap, right end cap, the dividing plate bundle, the frock bolt and nut, seal ring and adjustment pad, described dividing plate bundle is made up of dividing plate and is connected by the frock bolt and nut, described dividing plate end face is provided with circular groove, rubber seal is embedded in the circular groove, the spot welding of described adjustment pad on the end separator of dividing plate bundle, end separator end face and right end cap gap width satisfy simultaneously near or equal that (but being not less than) dividing plate bundle the heat expansion elongation when hot and frock screw rod in casing are stressed to be no more than the stress that itself material bears.
The beneficial effects of the utility model are:
1, solved the problem of collaborating between dividing plate;
2, reduced the gap of dividing plate bundle in casing;
3, prevent that screw rod from rupturing from root (weak part) earlier.
Description of drawings
Fig. 1 is a main sectional structure schematic representation of the present utility model.
Fig. 2 is the partial enlarged drawing of " A " in the main sectional structure schematic representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, 2, the utility model comprises casing 16, left end cap 15, right end cap 14, dividing plate bundle (1-10 fits together by dividing plate, and connects into overall structure with the frock bolt and nut), frock bolt and nut 13, seal ring 12 and adjusts pad 11.Adjust pad 11 and add that man-hour and dividing plate 10 are spot-welded together to become integral body to process on lathe, mainly be to be the end face behind the strictness control cushioning and the parallelism and the integral thickness precision of dividing plate datum end face, dividing plate 10 is 1.5mm with the former design gaps of right end cap 14 before and after the shimming.Now be adjusted into the 0.5mm gap, free expansion amount in the time of both can having satisfied the heat expansion of dividing plate in cylindrical shell, can guarantee that also dividing plate just withstands on the end face of end cap 14 after the elongation of expanding, and frock bolt this moment at the elongation under the hot stressing conditions just within its elastic elongation amount, stressed its elasticity allowable stress that is no more than; Ten all similar seal rings 12 of dividing plate end-face seal ring, the sealing circle has solved the problem of collaborating between each dividing plate, guarantees no longer to avoid bolt to be subjected to the air-flow impact force because of air-flow enters the dividing plate end face, screw hole washes away screw rod.Because screw rod silk oral area position intensity is the most weak, so be M20 with end silk now, unit operation is good at present.
The above, it only is preferred embodiment of the present utility model, be not that the technical solution of the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. tubular multistage centrifugal compressor stator, comprise casing (16), left end cap (15), right end cap (14), dividing plate bundle (1-10), frock bolt and nut (13), seal ring (12) and adjustment pad (11), described dividing plate bundle (1-10) is made up of dividing plate and is connected by the frock bolt and nut, it is characterized in that, described dividing plate end face is provided with circular groove, seal ring (12) is embedded in the circular groove, described adjustment pad (11) point is welded on the end separator of dividing plate bundle (1-10), end separator end face and right end cap (14) gap width satisfy simultaneously near or equal, dividing plate bundle (1-10) the heat expansion elongation when hot and frock screw rod in casing are stressed to be no more than the stress that itself material bears but be not less than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202487387U CN201972950U (en) | 2010-07-02 | 2010-07-02 | Cylindrical multilevel centrifugal compressor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202487387U CN201972950U (en) | 2010-07-02 | 2010-07-02 | Cylindrical multilevel centrifugal compressor stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201972950U true CN201972950U (en) | 2011-09-14 |
Family
ID=44578054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202487387U Expired - Fee Related CN201972950U (en) | 2010-07-02 | 2010-07-02 | Cylindrical multilevel centrifugal compressor stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201972950U (en) |
-
2010
- 2010-07-02 CN CN2010202487387U patent/CN201972950U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20190702 |