CN202326370U - Submerged pump with mechanical seal protected by air layer - Google Patents
Submerged pump with mechanical seal protected by air layer Download PDFInfo
- Publication number
- CN202326370U CN202326370U CN2011204807562U CN201120480756U CN202326370U CN 202326370 U CN202326370 U CN 202326370U CN 2011204807562 U CN2011204807562 U CN 2011204807562U CN 201120480756 U CN201120480756 U CN 201120480756U CN 202326370 U CN202326370 U CN 202326370U
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- CN
- China
- Prior art keywords
- mechanical seal
- pump
- sealing
- air layer
- submerged pump
- 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 provides a submerged pump with a mechanical seal protected by an air layer and belongs to the field of submerged pumps. The submerged pump structurally comprises a motor assembly and a pump assembly which are arranged on a base vertically. A sealing oil chamber cavity accommodating the mechanical seal is enclosed between the motor assembly and the pump assembly through a lower bearing block and a sealing chamber cover, and liquid lubricating oil is filled in the sealing oil chamber cavity. The submerged pump is characterized in that one end of the sealing chamber cover contacting with a medium is provided with a large concave cavity, and when the pump is placed in the medium, the air layer is formed in the concave cavity of the sealing chamber cover, so that the mechanical seal and the medium are completely isolated, the mechanical seal is protected, mutual leakage between the medium and machine oil in the sealing oil chamber cavity is effectively avoided, the service life of the mechanical seal is prolonged, and the using reliability of the submerged pump is improved. Due to the fact that a sealing method of a conventional mechanical seal is broken through, compared with an existing sealing structure, the submerged pump with the mechanical seal protected by the air layer has the advantages that the submerged pump is reasonable in design, simple in structure and stable in performance, the service life of the mechanical seal is long, and the like.
Description
Technical field
The utility model relates to a kind of submersible pump, specifically a kind of submersible pump of air layer protection mechanical seal.
Background technique
At present, most of submersible pumps, mechanical seal one end is in closed chamber, and the other end directly contacts with medium, makes to be easy to mutual leakage between medium and the machinery oil, causes submersible pump normally not use, and brings very big inconvenience to the user.
Summary of the invention
The technical assignment of the utility model is the deficiency to existing technology, provides a kind of ability more effective protection mechanical seal, increases the submersible pump of the air layer protection mechanical seal in pump working life.
The utility model solves the technological scheme that its technical problem adopted:
The submersible pump of air layer protection mechanical seal comprises the electric machine assembly and the pump assembly that are arranged in up and down on the base, surrounds a chamber, airtight grease chamber that holds mechanical seal through step and sealing chamber cap between electric machine assembly and the pump assembly; Airtight grease chamber is filled with liquid lubricant oil in the chamber, and an end of sealing chamber cap contact medium offers a big cavity, when pump is placed in the medium; In the cavity of sealing chamber cap, form an air layer; Mechanical seal and medium are isolated fully, protected mechanical seal, effectively prevented the mutual leakage between the machinery oil in medium and the chamber, airtight grease chamber; Prolong the working life of mechanical seal, increased the reliability that submersible pump uses.
Above-mentioned airtight grease chamber is provided with lower bearing in the chamber.
The submersible pump of the air layer of the utility model protection mechanical seal compared with prior art, the beneficial effect that is produced is:
The utility model is reasonable in design, simple in structure, stable performance, mechanical seal long service life; Owing to broken the sealing means of conventional mechanical sealing; Compare with existing submersible pump sealing configuration; Effectively protect mechanical seal, improved the working life of mechanical seal greatly, thereby prolonged the working life of submersible pump to a great extent.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Among the figure, 1, cable, 2, the outlet lid, 3, upper bearing bracket, 4, upper bearing (metal), 5, housing; 6, the winding stator core is arranged, 7, rotor, 8, step, 9, lower bearing, 10, mechanical seal; 11, sealing chamber cap, 12, balancing drum, 13, spiral case, 14, the pump housing, 15, the final stage stator; 16, preceding stator, 17, impeller, 18, pump cover, 19, base, 20, shell.
Embodiment
Explanation at length below below in conjunction with accompanying drawing the submersible pump of the air layer of the utility model protection mechanical seal being done.
Shown in accompanying drawing 1, the submersible pump of the air layer of the utility model protection mechanical seal, its structure comprises electric machine assembly and the pump assembly that is arranged in up and down on the base 19; Above-mentioned electric machine assembly comprises cable 1, outlet lid 2, upper bearing bracket 3, upper bearing (metal) 4, housing 5, winding stator core 6 is arranged, rotor 7, step 8, lower bearing 9, mechanical seal 10 and sealing chamber cap 11; Be provided with rotor 7 in the housing 5 and have winding stator core 6, the top of housing 5 and bottom to be respectively arranged with upper bearing bracket 3 and step 8, be respectively arranged with upper bearing (metal) 4 and lower bearing 9 in upper bearing bracket 3 and the step 8; The top of upper bearing bracket 3 is provided with outlet lid 2; Cable 1 with have winding stator core 6 to be connected and pass from outlet lid 2, be provided with lower bearing 9 in the step 8 and form chambeies, an airtight grease chamber with mechanical seal 10 and with 11 sealings of sealing chamber cap, airtight grease chamber is filled with liquid lubricant oil in the chamber; One end of sealing chamber cap contact medium offers a big cavity; When pump is placed in the medium, in the cavity of sealing chamber cap 11, form an air layer, mechanical seal 10 and medium are isolated fully; Protected mechanical seal 10; Effectively prevent the mutual leakage between the machinery oil in medium and the chamber, airtight grease chamber, prolonged the working life of mechanical seal, increased the reliability that submersible pump uses.
The said pump assembly comprises spiral case 13, the pump housing 14, final stage stator 15, preceding stator 16, impeller 17, pump cover 18 and shell 20.
Its processing and fabricating of submersible pump of the air layer protection mechanical seal of the utility model is simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characteristics of specification, be the known technology of those skilled in the art.
Claims (2)
1. air layer is protected the submersible pump of mechanical seal; Comprise the electric machine assembly and the pump assembly that are arranged in up and down on the base (19); Surround a chamber, airtight grease chamber that holds mechanical seal (10) through step (8) and sealing chamber cap (11) between electric machine assembly and the pump assembly; Airtight grease chamber is filled with liquid lubricant oil in the chamber, it is characterized in that, an end of sealing chamber cap contact medium offers a big cavity.
2. the submersible pump of air layer protection mechanical seal according to claim 1 is characterized in that, is provided with lower bearing (9) in the chamber, airtight grease chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204807562U CN202326370U (en) | 2011-11-28 | 2011-11-28 | Submerged pump with mechanical seal protected by air layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204807562U CN202326370U (en) | 2011-11-28 | 2011-11-28 | Submerged pump with mechanical seal protected by air layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326370U true CN202326370U (en) | 2012-07-11 |
Family
ID=46438352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204807562U Expired - Fee Related CN202326370U (en) | 2011-11-28 | 2011-11-28 | Submerged pump with mechanical seal protected by air layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10036399B2 (en) | 2014-08-29 | 2018-07-31 | VP Sales and Company, LP | Mechanical seal lubrication system |
-
2011
- 2011-11-28 CN CN2011204807562U patent/CN202326370U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10036399B2 (en) | 2014-08-29 | 2018-07-31 | VP Sales and Company, LP | Mechanical seal lubrication system |
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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 |
Granted publication date: 20120711 Termination date: 20151128 |