CN2331775Y - Integral seal box for sumersible electric pump working at high-pressure - Google Patents
Integral seal box for sumersible electric pump working at high-pressure Download PDFInfo
- Publication number
- CN2331775Y CN2331775Y CN 98224342 CN98224342U CN2331775Y CN 2331775 Y CN2331775 Y CN 2331775Y CN 98224342 CN98224342 CN 98224342 CN 98224342 U CN98224342 U CN 98224342U CN 2331775 Y CN2331775 Y CN 2331775Y
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- China
- Prior art keywords
- sealing
- ring
- static
- seal ring
- seal
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- Expired - Fee Related
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Abstract
The utility model relates to a high-pressure mechanical sealing device for submersible electric pumps. The utility model is characterized in that a C-shaped sealing lining cushion 2 is arranged between the left box body 1 of a sealing box 15 and a static sealing ring 3; the convex part of the static sealing ring 3 is matched with the concave part of the C-shaped sealing lining cushion 2 to form a static sealing ring combination body 16; one end surface of an L-shaped press ring 4 is matched with the inner diameter of the left box body 1, and the other end surface of the L-shaped press ring 4 is matched with the static sealing ring combination body 16; the sealing groove and the sealing surface of a moving sealing ring 5 have a definite angle which is 50 DEG to 70 DEG. The utility model adopts the L-shaped press ring to be positioned on the inner diameter of the box body, limits the static sealing ring combination body to inwards play, and guarantees the submersible electric pump to continuously and normally work under the deep water of 20 m.
Description
The utility model relates to Submerged Motor Pumps mechanical seal, relates in particular to high-pressure mechanical seal.
Submerged Motor Pumps generally is made up of motor, water pump and mechanical seal box, and the quality of mechanical seal is determining performance, operational reliability and the working life of Submerged Motor Pumps.Existing Submerged Motor Pumps integral sealed box is made up of axle sleeve, seal ring, static seal circle, dynamic seal ring, spring, bearing and sealing box body, and its media end is identical with the seal form of motor side.This mechanical seal box is mainly by the transmission of spring and bearing, bearing and dynamic seal ring, dynamic seal ring cooperates with the sealing case end face with static seal circle, static seal circle, and add seal ring realization mechanical seal between dynamic seal ring, axle sleeve and bearing, generally be applied to shallow water operations.In case when the deepwater work below 15 meters, often cause media end static seal circle and dynamic seal ring to move axially in spring force by reason of heavy pressure, sealing state is damaged and causes serious consequences such as motor damage.Chinese patent 90201878.7 discloses the structure of a kind of circlip for hole formula mechanical seal, it is shaped on circlip groove in the sealing box body, circlip for hole matches with circlip groove, circlip for hole matches with static seal circle assemblying body simultaneously, and this assemblying body is by L type rubber seal and static seal circle be combined into.Circlip for hole has stoped media end static seal circle assemblying body axially displaced when the deep water position, thereby Submerged Motor Pumps can normally be used at the deep water place.But this structure issuable leakage problem between dynamic seal ring, axle sleeve and bearing does not also solve.
At when 20 meters left and right sides deepwater works, existing most of Submerged Motor Pumps mechanical seals can not adapt to the situation of this water level work, and the utility model improves on said structure, has proposed the stronger Submerged Motor Pumps high pressure integral sealed box of a kind of sealability.
The utility model is achieved in that by sealing case, static seal circle assemblying body, static seal circle, dynamic seal ring, seal ring, axle sleeve, spring and bearing to be formed, it is characterized in that between sealing case left side box body and the static seal circle C type liner being arranged, static seal circle protuberance and C type liner recess match to merge and are combined into static seal circle assemblying body, L type trim ring one end face matches with left box body internal diameter, matches with static seal circle assemblying body in the other end.This structure pressure medium greater than the acting force of the spring situation under, because L type trim ring is positioned on the box body internal diameter of a sealing case left side, can bear certain pressure,, guarantee Submerged Motor Pumps continuous proper functioning in 20 meters left and right sides deep water so can limit the inside play of static seal circle assemblying body.C type liner cooperates with the static seal circle, can adjust the perpendicularity of sealing surface and sealing case shaft axis automatically, thereby can reduce the leakage of mechanical seal, improves its working life.
The sealing of the utility model between dynamic seal ring, axle sleeve and bearing, between the seal groove of employing dynamic seal ring and sealing surface several angle is arranged, this angle is 50 ° to 70 °, 0 type seal ring is near seal groove, axle sleeve and the bearing of dynamic seal ring, make and all be greatly improved the axial position compensation ability of sealing effect and dynamic seal ring of dynamic seal ring and shaft room than original rectangle groove.
The utility model Submerged Motor Pumps high pressure integral sealed box has overcome the deficiencies in the prior art, has improved the mechanical seal ability, it with existing Submerged Motor Pumps applying working condition by original about 10 meters, bring up to about 20 meters, and have simple in structure, long service life and safe and reliable characteristics.
Accompanying drawing 1 is the utility model structural representation, and accompanying drawing 2 is the dynamic seal ring structural representation.
Among the figure: 1. left box body, 2. liner, 3. static seal circle, 4. trim ring, 5. dynamic seal ring, 6. seal ring, 7. bearing, 8. spring, 9. seal ring, 10. dynamic seal ring, 11. right box bodys, 12. static seal circles, 13. seal ring, 14. axle sleeves, 1 5. sealing casees, 16. static seal circle assemblying body, 17. seal rings.
Below in conjunction with drawings and Examples, the utility model is specifically described:
With reference to accompanying drawing 1, with in right box body 11 connects the sealing case 15 that forms, axle sleeve 14 is housed by left box body 1, sleeve sealing ring 9 is installed in the axle sleeve 14; Between the left box body 1 and axle sleeve 14 of sealing case 15, C type liner 2 and static seal circle 3 are housed, C type liner 2 recesses and static seal circle 3 protuberances match to merge and are combined into static seal circle assemblying body 16, and C type liner 2 matches with left box body 1, in order to stop entering of medium; The interior circular hole wall of static seal circle assemblying body 16 matches with axle sleeve 14; L type trim ring 4 one end faces match with sealing case 15 left box body 1 internal diameters, match with static seal circle assemblying body 16 in the other end, be that L type trim ring 4 one end faces are positioned on left box body 1 internal diameter, static seal circle assemblying body 16 is pushed down in the other end, in order to stop the assemblying body 16 inside plaies of static seal circle 3 and C type liner 2, guarantee 20 meters left and right sides deep water medium pressure greater than the acting force of the spring situation under, Submerged Motor Pumps is proper functioning continuously, this L type trim ring has adopted corrosion resistant plate to make.C type liner 2 cooperates with static seal circle 3, can adjust C type liner 2 and the sealing surface of left box body 1 and the perpendicularity of sealing case 15 shaft axiss automatically, thereby can reduce the leakage of mechanical seal, improves its working life.Be connected with dynamic seal ring 5 on the right of static seal circle 3, the two cooperates by face and seals; The interior circular hole wall of dynamic seal ring 5 matches with axle sleeve 14; Certain angle is arranged between the seal groove of motive sealing 5 and sealing surface, and this angle is 50 ° to 70 °, referring to accompanying drawing 2.The upper end of seal groove is a plane, and this plane is connected with bearing 7.0 type seal ring 6 is near seal groove, axle sleeve 14 and the bearing 7 of dynamic seal ring 5, make the sealing effect of 14 on dynamic seal ring 5 and axle sleeve and the axial position compensation ability of dynamic seal ring, all improve a lot, can prevent that medium from entering in the sealing case 15 from axle sleeve 14 outer walls than original rectangle groove.Between sealing case 15 right box bodys 11 and axle sleeve 14, static seal circle 12, seal ring 13, dynamic seal ring 10, seal ring 17, bearing 7 are housed, are connected in the prior art manner known between they are mutual.Spring 8 is mounted between the bearing 7, under the effect of spring force, makes two ends of sealing case 15 keep certain sealing.
Claims (2)
1. Submerged Motor Pumps high pressure integral sealed box, by sealing case (15), static seal circle assemblying body (16), static seal circle (12), dynamic seal ring (5,10), seal ring (6,9,13,17), axle sleeve (14), spring (8) and bearing (7) are formed, it is characterized in that between left box body of sealing case (15) (1) and the static seal circle (3) C type liner (2) being arranged, static seal circle (3) protuberance and C type liner (2) recess match to merge and are combined into static seal circle assemblying body (16), L type trim ring (4) one end faces match with left box body (1) internal diameter, match with static seal circle assemblying body (16) in the other end.
2. Submerged Motor Pumps high pressure integral sealed box according to claim 1, it is characterized in that between the seal groove of dynamic seal ring (5) and sealing surface several angle being arranged, this angle is 50 ° to 70 °, and O type seal ring (6) is near seal groove, axle sleeve (14) and the bearing (7) of dynamic seal ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98224342 CN2331775Y (en) | 1998-06-19 | 1998-06-19 | Integral seal box for sumersible electric pump working at high-pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98224342 CN2331775Y (en) | 1998-06-19 | 1998-06-19 | Integral seal box for sumersible electric pump working at high-pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2331775Y true CN2331775Y (en) | 1999-08-04 |
Family
ID=33975234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98224342 Expired - Fee Related CN2331775Y (en) | 1998-06-19 | 1998-06-19 | Integral seal box for sumersible electric pump working at high-pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2331775Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102685A (en) * | 2010-10-08 | 2011-06-22 | 溧阳平陵林机有限公司 | Permeable cover sealing structure of fan shaft |
-
1998
- 1998-06-19 CN CN 98224342 patent/CN2331775Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102685A (en) * | 2010-10-08 | 2011-06-22 | 溧阳平陵林机有限公司 | Permeable cover sealing structure of fan shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |