CN212774761U - Sealing mechanism of high-temperature steam Roots compressor - Google Patents
Sealing mechanism of high-temperature steam Roots compressor Download PDFInfo
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- CN212774761U CN212774761U CN202021310846.2U CN202021310846U CN212774761U CN 212774761 U CN212774761 U CN 212774761U CN 202021310846 U CN202021310846 U CN 202021310846U CN 212774761 U CN212774761 U CN 212774761U
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- sleeve
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- shaft end
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Abstract
The utility model relates to a Roots blower technology, in particular to a sealing mechanism of a high-temperature steam Roots compressor, which is arranged at the shaft end of a rotor and comprises a sealing sleeve, a sealing ring and two oil seals; the sealing sleeve is sleeved on the shaft end, the left end of the sealing sleeve is arranged in the oil tank cover, and the right end of the sealing sleeve is arranged in the shaft sleeve; the oil tank cover is arranged at the joint of the oil tank and the shaft end, and the shaft sleeve is arranged at the joint of the shell and the shaft end; and oil seals are respectively arranged between the seal sleeve and the oil tank cover and between the seal sleeve and the end surface of the shaft sleeve. The sealing mechanism changes the mechanical sealing mode of the traditional high-pressure steam Roots blower, and the longer sealing sleeve is arranged on the shaft end to penetrate between the oil tank cover and the shaft sleeve, so that the requirement of shaft end sealing of the high-temperature steam Roots compressor can be met, and the sealing mechanism is low in cost and simple in assembly.
Description
Technical Field
The utility model relates to a roots's fan technique, concretely relates to high temperature steam roots compressor's sealing mechanism.
Background
The existing shaft end sealing technology of the Roots compressor for conveying steam is generally double-end-face mechanical sealing. When mechanical seal is adopted, the sealing effect is good, but the defect of high cost exists, and in addition, the mechanical seal needs external supplementary cooling water (soft water is required), so that the cost of enterprises is greatly increased.
Disclosure of Invention
In order to solve the problem, the utility model provides a roots type vapor compressor of combination seal of good structure, it is with low costs, can also satisfy user's sealed demand. The utility model adopts the technical scheme as follows:
a sealing mechanism of a high-temperature steam Roots compressor is arranged at the shaft end of a rotor and comprises a sealing sleeve and two oil seals;
the sealing sleeve is sleeved on the shaft end, the left end of the sealing sleeve is arranged in the oil tank cover, and the right end of the sealing sleeve is arranged in the shaft sleeve; the oil tank cover is arranged at the joint of the oil tank and the shaft end, and the shaft sleeve is arranged at the joint of the shell and the shaft end; and oil seals are respectively arranged between the seal sleeve and the oil tank cover and between the seal sleeve and the end surface of the shaft sleeve.
In the sealing mechanism of the high-temperature steam Roots compressor, a plurality of expansion rings are arranged between the sealing sleeve and the inside of the shaft sleeve.
In the sealing mechanism of the high-temperature steam Roots compressor, the middle part of the shaft end is provided with a shoulder, and the diameter of the shoulder is larger than the diameters of the left end and the right end of the shaft end; and a sealing ring is arranged at the joint of the right end of the shaft end and the sealing sleeve.
The utility model has the advantages that: the mechanical sealing mode of the traditional high-pressure steam Roots blower is changed, the longer sealing sleeve is arranged on the shaft end and penetrates between the oil tank cover and the shaft sleeve, the requirement of shaft end sealing of the high-temperature steam Roots compressor can be met, and the high-pressure steam Roots blower is low in cost and simple in assembly.
Drawings
FIG. 1 is a schematic sectional view of the sealing mechanism of the present invention;
fig. 2 is a schematic view of the sealing mechanism according to the present invention.
In the figure: the structure comprises a shell 1, a rotor 2, a shaft end 3, an expansion ring 4, a sealing ring 5, a wallboard 6, an oil tank 7, an oil seal 8, an oil tank cover 9, a shaft sleeve 10 and a sealing sleeve 11.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
With the attached drawings, two rotors 2 are arranged in a shell 1 of the Roots compressor, the left end of the shell 1 is connected with an oil tank 7 through a wall plate 6 with an I-shaped section, and a shaft end 3 of each rotor 2 is connected with an oil tank cover 9 and the side part of the shell 1. The sealing mechanisms of the Roots compressor related to the embodiment are all arranged at the shaft end 3 of the rotor 2 and comprise a sealing sleeve 11 and two oil seals 8;
the sealing sleeve 11 is sleeved on the shaft end 3, the left end of the sealing sleeve 11 is arranged in the oil tank cover 9, and the right end of the sealing sleeve 11 is arranged in the shaft sleeve 10; the oil tank cover 9 is arranged at the joint of the oil tank 7 and the shaft end 3, and the shaft sleeve 10 is arranged at the joint of the machine shell 1 and the shaft end 3; and oil seals 8 are respectively arranged between the seal sleeve 11 and the oil tank cover 9 and between the seal sleeve 11 and the end surface of the shaft sleeve 10.
In the sealing mechanism of the high-temperature steam Roots compressor, a plurality of expansion rings 4 are arranged between the sealing sleeve 11 and the shaft sleeve 10 and used for hooping the sealing sleeve 11 to avoid axial movement.
In the sealing mechanism of the high-temperature steam Roots compressor, the middle part of the shaft end 3 is a shoulder, and the diameter of the shoulder is larger than that of the left end and the right end of the shaft end 3; and a sealing ring 5 is arranged at the joint of the right end of the shaft end 3 and the sealing sleeve 11. The diameter of the shoulder is large, the sealing effect can be further achieved between the shoulder and the sealing sleeve 11, and the sealing device is simple and effective.
Claims (3)
1. The utility model provides a sealing mechanism of high temperature steam roots compressor, all sets up in axle head (3) of rotor (2), its characterized in that: comprises a sealing sleeve (11) and two oil seals (8);
the sealing sleeve (11) is sleeved on the shaft end (3), the left end of the sealing sleeve (11) is arranged in the oil tank cover (9), and the right end of the sealing sleeve (11) is arranged in the shaft sleeve (10); the oil tank cover (9) is arranged at the joint of the oil tank (7) and the shaft end (3), and the shaft sleeve (10) is arranged at the joint of the shell (1) and the shaft end (3); and the oil seal (8) is respectively arranged between the sealing sleeve (11) and the oil tank cover (9) and between the oil seal and the end surface of the shaft sleeve (10).
2. The sealing mechanism of a high temperature vapor roots compressor as set forth in claim 1, wherein: and a plurality of expansion rings (4) are arranged between the sealing sleeve (11) and the inside of the shaft sleeve (10).
3. The sealing mechanism of a high temperature vapor roots compressor as set forth in claim 1, wherein: the middle part of the shaft end (3) is provided with a shoulder, and the diameter of the shoulder is larger than that of the left end and the right end of the shaft end (3); and a sealing ring (5) is arranged at the joint of the right end of the shaft end (3) and the sealing sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021310846.2U CN212774761U (en) | 2020-07-07 | 2020-07-07 | Sealing mechanism of high-temperature steam Roots compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021310846.2U CN212774761U (en) | 2020-07-07 | 2020-07-07 | Sealing mechanism of high-temperature steam Roots compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774761U true CN212774761U (en) | 2021-03-23 |
Family
ID=75076434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021310846.2U Active CN212774761U (en) | 2020-07-07 | 2020-07-07 | Sealing mechanism of high-temperature steam Roots compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212774761U (en) |
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2020
- 2020-07-07 CN CN202021310846.2U patent/CN212774761U/en active Active
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