CN211343422U - Fan carbocycle seal structure and coal gas fan - Google Patents
Fan carbocycle seal structure and coal gas fan Download PDFInfo
- Publication number
- CN211343422U CN211343422U CN201922266962.2U CN201922266962U CN211343422U CN 211343422 U CN211343422 U CN 211343422U CN 201922266962 U CN201922266962 U CN 201922266962U CN 211343422 U CN211343422 U CN 211343422U
- Authority
- CN
- China
- Prior art keywords
- fan
- gas
- seal shell
- carbon ring
- carbocycle
- 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
- 239000003034 coal gas Substances 0.000 title description 5
- 238000007789 sealing Methods 0.000 claims abstract description 59
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 44
- 230000001681 protective effect Effects 0.000 claims abstract description 6
- 239000010687 lubricating oil Substances 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 30
- 238000010586 diagram Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a fan carbocycle seal structure, including upper seal shell and lower seal shell, upper seal shell and lower seal shell adopt half formula structural connection, and when upper seal shell and lower seal shell cooperate, the inside of upper seal shell and lower seal shell constitutes a cavity that can hold fan main shaft or fan main shaft axle sleeve, at least two sets of carbon ring grooves and at least one set of gas ring groove are provided with relatively on the inner wall of upper seal shell and lower seal shell, and every group carbon ring groove is equipped with a carbocycle, the carbocycle is connected with the carbocycle groove interference fit; the gas ring groove is used for containing high-pressure protective gas, and an air passage is further arranged in the radial direction of the upper sealing shell and communicated with the gas ring groove. By adopting the structure, the structure has the beneficial effects of good air tightness, convenient installation and disassembly and capability of greatly reducing the maintenance cost.
Description
Technical Field
The utility model belongs to the technical field of fan seal structure, specific theory is about a fan carbocycle seal structure and coal gas fan.
Background
Centrifugal fans are widely used in ventilation of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draught of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household electrical appliances, and drying and sorting of grains, which all represent the importance of centrifugal fans.
At present, ventilators with special purposes are mainly applied, such as a fan for coke oven gas, a conveying gas medium is gas containing coal gas and the like harmful to human bodies, and the harmful gas leaks into the air through the fan, so that the safety of life and property is seriously affected. Therefore, a reasonable sealing structure is required to strictly control the gas leakage of the fan.
The leakage degree of gas is directly influenced by the quality of a carbon ring sealing structure of the fan, and the carbon ring sealing structure is widely adopted at present. However, in the existing sealing structure, a crack is left between the carbon ring and the sealing shell, so that the possibility that gas leaks from the crack between the carbon ring and the sealing shell still exists, the sealing requirement cannot be met, and a user with higher air tightness requirement cannot be met.
In addition, the existing carbon ring is easy to wear, and after the carbon ring is worn to a certain degree, the sealing performance of the carbon ring sealing structure of the fan is affected. Regular maintenance is therefore required to observe wear of the carbon rings. However, when the fan impeller is overhauled, the fan impeller is required to be disassembled firstly, then the carbon ring sealing structure is disassembled, and then the abrasion condition of the carbon ring is observed, so that the overhauling difficulty is high, the installation and the disassembly are inconvenient, and the overhauling cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a first purpose provides a fan carbocycle seal structure to solve the problem that current fan carbocycle seal structure can't guarantee the gas tightness requirement and solve current fan carbocycle seal structure and overhaul inconvenient problem. The second objective of the utility model is to provide a gas fan, this gas fan's main shaft or main shaft axle sleeve have this fan carbocycle seal structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a blower carbon ring sealing structure comprises an upper sealing shell and a lower sealing shell, wherein the upper sealing shell and the lower sealing shell are connected by adopting a half structure, when the upper sealing shell and the lower sealing shell are matched, a cavity capable of accommodating a blower main shaft or a blower main shaft sleeve is formed inside the upper sealing shell and the lower sealing shell and is used for being sleeved on the blower main shaft or the blower main shaft sleeve, at least two groups of carbon ring grooves and at least one group of gas ring grooves are oppositely arranged on the inner walls of the upper sealing shell and the lower sealing shell, a carbon ring is arranged in each group of carbon ring grooves, and the carbon rings are in interference fit with the carbon ring grooves;
the gas ring groove is used for containing high-pressure protective gas, an air passage is further arranged in the radial direction of the upper sealing shell, and the air passage is communicated with the gas ring groove and used for introducing the high-pressure protective gas so as to enable medium in the fan to be zero-leakage.
According to the utility model discloses, the middle part of multiunit carbon annular is located to the gas ring groove, guarantees zero leakage of medium in the fan and ensures that lubricating oil can reach the carbocycle surface at both ends.
According to the utility model discloses, be equipped with the notes oil pipe on the axial of upper seal casing for pour into lubricating oil into, notes oil pipe communicates with each other with the air flue, is used for carrying lubricating oil to each carbocycle on, with the friction reduction, reduces the carbocycle wearing and tearing.
According to the utility model discloses, be equipped with a plurality of mounting holes on the terminal surface of last seal housing and lower seal housing.
As a second aspect of the present invention, a gas blower includes the blower carbon ring sealing structure described above.
The utility model discloses a fan carbocycle seal structure and coal gas fan, its beneficial effect is:
1. when the wearing condition of the carbon ring is observed, the upper sealing shell and the lower sealing shell can be directly disassembled due to the fact that the sealing shell is of the upper half-and-lower half-type structure, and the fan impeller does not need to be disassembled firstly, and then the sealing shell is disassembled. Therefore, the mounting and dismounting are convenient, and the maintenance cost can be greatly reduced;
2. due to the arrangement of the oil injection pipe, the friction between the carbon ring and the shaft sleeve/main shaft of the fan main shaft can be reduced, so that the abrasion of the carbon ring is reduced;
3. the number of the carbon ring grooves is at least two, so that good air sealing can be ensured;
4. the cooperation setting of gas ring channel and air flue can guarantee the gas tightness of fan carbocycle seal structure, satisfies the user's that the gas tightness required height operation requirement.
Drawings
Fig. 1 is the utility model discloses a fan carbocycle seal structure's cross-sectional view schematic diagram.
Fig. 2 is a structural schematic diagram of an upper sealing shell of a carbon ring sealing structure of a fan.
Fig. 3 is a structural schematic diagram of a lower seal shell of a carbon ring seal structure of a fan.
Detailed Description
The gas blower and blower carbon ring sealing structure of the present invention will be further described in detail with reference to the accompanying drawings. In the description of the present embodiment, unless otherwise specified, the terms "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings only for convenience of description of the present invention and simplification of description, and do not indicate or imply that the indicated blower carbon ring seal structure must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, fig. 2 and fig. 3, the blower carbon ring sealing structure for a gas blower includes an upper sealing housing 1 and a lower sealing housing 2, the upper sealing housing 1 and the lower sealing housing 2 are connected by a hough structure, when the upper sealing housing 1 and the lower sealing housing 2 are matched, a cavity capable of accommodating a blower main shaft or a blower main shaft sleeve 10 is formed inside the upper sealing housing 1 and the lower sealing housing 2, and is used for being sleeved on the blower main shaft or the blower main shaft sleeve 10, at least two groups of carbon ring grooves 3 and at least one group of gas ring grooves 4 are relatively arranged on the inner walls of the upper sealing housing 1 and the lower sealing housing 2, a carbon ring 5 is arranged in each group of carbon ring grooves 3, and the carbon ring 5 is connected with the carbon ring grooves 3 in an interference fit manner. It should be noted that when the number of the carbon ring grooves 3 is large, a plurality of sets of air passages may be provided to ensure that the lubricating oil can reach the carbon ring surfaces at both ends.
The gas ring groove 4 is used for accommodating high-pressure protective gas (such as nitrogen gas and the like), the upper sealing shell 1 is further provided with a gas passage 6 in the radial direction, and the gas passage 6 is communicated with the gas ring groove 4 and is used for introducing the high-pressure protective gas so as to enable medium in the fan to have zero leakage.
The gas ring grooves 4 are formed in the middle of the plurality of groups of carbon ring grooves 3, so that zero leakage of media in the fan is guaranteed, and lubricating oil can reach the carbon ring surfaces at two ends.
Be equipped with oiling pipe 7 in the axial of upper seal casing 1 for pour into lubricating oil into, it has lubricating oil to pour into in the oiling pipe 7, and oiling mouth sealing fixation of oiling pipe 7, oiling pipe 7 communicates with each other with air flue 6 for carry lubricating oil to each carbocycle 5 on, with the reduction friction, reduce the wearing and tearing of carbocycle 5.
The end surfaces of the upper sealing shell 1 and the lower sealing shell 2 are provided with a plurality of mounting holes 8 for connecting with other structural members (such as a flange plate and the like) on a fan main shaft or a fan main shaft sleeve 10.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the principle of the present invention. Such modifications and finishes are also to be considered as the scope of protection of the present invention.
Claims (5)
1. A fan carbon ring sealing structure is characterized by comprising an upper sealing shell and a lower sealing shell, wherein the upper sealing shell and the lower sealing shell are connected by adopting a half structure;
the gas ring groove is used for containing high-pressure protective gas, and an air passage is further arranged in the radial direction of the upper sealing shell and communicated with the gas ring groove.
2. The blower carbon ring sealing structure as claimed in claim 1, wherein the gas ring groove is provided in the middle of the plurality of groups of carbon ring grooves.
3. The carbon ring sealing structure of the blower fan as claimed in claim 1, wherein an oil filling pipe is axially provided on the upper sealing shell, and lubricating oil is filled in the oil filling pipe, and the oil filling pipe is communicated with the air passage.
4. The carbon ring sealing structure of the blower fan as claimed in claim 1, wherein the end faces of the upper sealing shell and the lower sealing shell are provided with a plurality of mounting holes.
5. A gas blower comprising a blower carbon ring seal structure as claimed in any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922266962.2U CN211343422U (en) | 2019-12-17 | 2019-12-17 | Fan carbocycle seal structure and coal gas fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922266962.2U CN211343422U (en) | 2019-12-17 | 2019-12-17 | Fan carbocycle seal structure and coal gas fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343422U true CN211343422U (en) | 2020-08-25 |
Family
ID=72100050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922266962.2U Expired - Fee Related CN211343422U (en) | 2019-12-17 | 2019-12-17 | Fan carbocycle seal structure and coal gas fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343422U (en) |
-
2019
- 2019-12-17 CN CN201922266962.2U patent/CN211343422U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200825 |