CN201858189U - Combined dry gas sealing device - Google Patents
Combined dry gas sealing device Download PDFInfo
- Publication number
- CN201858189U CN201858189U CN2010205669692U CN201020566969U CN201858189U CN 201858189 U CN201858189 U CN 201858189U CN 2010205669692 U CN2010205669692 U CN 2010205669692U CN 201020566969 U CN201020566969 U CN 201020566969U CN 201858189 U CN201858189 U CN 201858189U
- Authority
- CN
- China
- Prior art keywords
- sealing
- seal
- stuffing box
- box gland
- sealing device
- 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 - Lifetime
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Abstract
The utility model belongs to a sealing device, in particular to a sealing device of a chemical submersible pump used in industries such as chemical industry, metallurgy, coal, paper making, pharmacy, environmental protection and the like. The device has the technical scheme that an inner cavity of a sealing body is internally provided with a sealing sleeve and filler; the sealing body and the sealing sleeve are provided with channels which are correspondingly communicated with each other; and the inner wall of the sealing sleeve is provided with an air flow channel communicated with the channel. The sealing device has the characteristics that assembly and disassembly are convenient, the sealing service life is long, the sealing effect is good, and the environment is protected.
Description
One. technical field
The utility model belongs to the seal arrangement on the chemical pump under the liquid that industries such as a kind of seal arrangement, particularly chemical industry, metallurgy, coal, papermaking, pharmacy, environmental protection use.
Two. background technique
In carrying the Under Water Pumps of poisonous, the volatile medium that is corrosive, its sealing problem has great difficulty.Usually the encapsulation scheme of considering has packing seal and mechanical seal.Packing seal structure is simple, and is easy to operate, but because the direct contact wear of filler and axle sleeve is difficult to guarantee long-term failure-free operation; For mechanical seal, two seal faces directly contact, and the end-face friction heating is serious, temperature rise is obvious, are urgent problems so will guarantee to seal operation steady in a long-term.
Three. summary of the invention
The technical problems to be solved in the utility model provides a kind of combined type dry gas sealing device device, and this device has for convenience detach and assembling, and sealing life is long, the characteristics of good sealing effect.
Realize that the technological scheme that the utility model above-mentioned purpose is taked is: in the inner chamber of seal, pack into stuffing box gland and filler, have the corresponding passage that is communicated with on seal and the stuffing box gland, the stuffing box gland inwall has the airslide that communicates with this passage.
The airslide that described stuffing box gland inwall is opened is a helical, and filler is pressed on the exterior edge face of stuffing box gland, and sealing cover is connected seal and compresses filler by screw.
The beneficial effects of the utility model are:, be corrosive volatile pump-unit shaft sealing leakage poisonous to carrying has greatly improved, and the maintenance dismounting is simple, and the protection environment is played a crucial role.
The stuffing box gland inwall has spiral chute and makes high pressure draught drive air-flow under the rotation of pump shaft to produce down air pressure vertically in this device, and axle envelope place produces air pressure and cancels out each other with the air pressure of system rising, effectively prevents leaking of escaping gas; Reaching in the seal groove gas better by supporting use packing material does not have and leaks, thereby improves the sealing and the reliability of pump.
Four. description of drawings
Fig. 1 is the utility model combined sealing structure schematic representation;
Fig. 2 is existing single stuffing seal structural representation.
Each label is represented among the figure: stuffing box gland 1, pressed gas inlet 2, seal 3, filler 4, sealing cover 5, airslide 6, axle sleeve 7.
Five. embodiment
Referring to Fig. 1, this seal arrangement is combined as seal arrangement by seal 3, sealing cover 5, stuffing box gland 1, axle sleeve 7, the inner chamber of seal 3 stuffing box gland 1 of packing into, the exterior edge face of stuffing box gland 1 filler 4 of packing into, with compressing after sealing cover 4 and the seal 3 usefulness screw attachment, pressed gas inlet 2 is arranged on the seal 3, and this inlet communicates with the helical airslide 6 of stuffing box gland 1 inwall preprocessing, thus but the gas leakage in the air pressure locking system of airslide 6 generations when pump shaft runs up.
Assembly process: 1) seal 3 is seated 2) stuffing box gland 1,3 of packing into) filler 4 is packed into puts in place, 4) sealing cover 5 is seated, can connect the degree of tightness of regulating filler 4 by bolt, be adjusted to suitable degree of tightness both can, 5) insert the pressed gas inlet 2 of pressurized air to seal 3.
Claims (2)
1. combined type dry gas sealing device is characterized in that: in the inner chamber of seal, pack into stuffing box gland and filler, have the corresponding passage that is communicated with on seal and the stuffing box gland, and the stuffing box gland inwall has the airslide that communicates with this passage.
2. a kind of combined type dry gas sealing device according to claim 1, it is characterized in that: the airslide that the stuffing box gland inwall is opened is a helical, and filler is pressed on the exterior edge face of stuffing box gland, and sealing cover is connected seal and compresses filler by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205669692U CN201858189U (en) | 2010-10-19 | 2010-10-19 | Combined dry gas sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205669692U CN201858189U (en) | 2010-10-19 | 2010-10-19 | Combined dry gas sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858189U true CN201858189U (en) | 2011-06-08 |
Family
ID=44103996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205669692U Expired - Lifetime CN201858189U (en) | 2010-10-19 | 2010-10-19 | Combined dry gas sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878108A (en) * | 2012-09-21 | 2013-01-16 | 西安陕鼓动力股份有限公司 | Inlet air sealing device for axial air feeding type air compressor |
-
2010
- 2010-10-19 CN CN2010205669692U patent/CN201858189U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878108A (en) * | 2012-09-21 | 2013-01-16 | 西安陕鼓动力股份有限公司 | Inlet air sealing device for axial air feeding type air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |
|
| CX01 | Expiry of patent term |