CN201013896Y - Seal cartridge with adjustable center - Google Patents
Seal cartridge with adjustable center Download PDFInfo
- Publication number
- CN201013896Y CN201013896Y CNU2007201007179U CN200720100717U CN201013896Y CN 201013896 Y CN201013896 Y CN 201013896Y CN U2007201007179 U CNU2007201007179 U CN U2007201007179U CN 200720100717 U CN200720100717 U CN 200720100717U CN 201013896 Y CN201013896 Y CN 201013896Y
- Authority
- CN
- China
- Prior art keywords
- ring
- polished rod
- sealing
- groove
- dynamic
- 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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- Sealing Devices (AREA)
Abstract
The utility model relates to a sealing component with an adjustable centre, comprising a sealing sleeve body, a static ring arranged at the upper end of the sealing sleeve body, a dynamic ring that is arranged in a ring-groove of the static ring and a chuck ring provided with a connection thread arranged on the external wall. The internal diameter of the ring-groove is more than the external diameter of the dynamic ring. A connection thread connected with the chuck ring is arranged on the inner wall of the static ring, and a connection thread is arranged on the outer wall at the upper end of the sealing sleeve body. When a polished rod of the utility model deviates from the center of the sealing sleeve, the dynamic ring can deviate following the polished rod in the ring-groove of the static ring, besides, the dynamic ring can modify the exterior size of the dynamic and the static sealing rings to be matched with the polished rod according to the extent of the deviation of the polished rod; therefore, eccentric wear and leakage are restricted to the maximum extent, the problem that the polished rod deviates during the operation of a pumping unit is solved, thus avoiding the environmental pollution caused by leakage.
Description
Technical field
The utility model relates to a kind of stuffing box gland of tunable center.
Background technique
The Sealings that adopt seal more between the stuffing box gland of drive link (or body of rod of motion) and equipment at present, because the deviation that the stuffing box gland center of drive link (or body of rod of motion) and equipment occurs causes the wearing and tearing of Sealing easily, influence sealing effect when serious.With the oil production equipment is example, and the exploitation of present domestic onshore oil field has been in the middle and later periods, and the overwhelming majority relies on mechanical oil recovery except that the part block, and mechanical oil recovery is based on pumping production.In actual production process, owing to reasons such as installation Technology, often causing the main drive link that moves up and down is polished rod and oil recovery ground installation production tree and well head center generation deviation, thereby causes the Sealing eccentric wear, further can produce to leak and cause environmental pollution.
Summary of the invention
Technical problem to be solved in the utility model provides a kind ofly to be avoided occurring owing to centre deviation between motion rod member and the stuffing box gland causes the stuffing box gland of the tunable center of sealing part abrasion.
The utility model adopts following technological scheme:
The utility model comprises the sealing body, is arranged on the stationary ring of sealing body upper end, be sleeved on the pressure ring that interior rotating ring of stationary ring ring groove and outer wall are provided with connecting thread, the internal diameter of ring groove is greater than the external diameter of rotating ring, the connecting thread that is connected with pressure ring is set on the stationary ring madial wall, and sealing body upper end outer wall is provided with connecting thread.
The utility model is provided with by rotary packing ring between sealing body and drive link and is sleeved on the Sealing that the stationary seal ring on the rotary packing ring is formed, stationary seal ring is provided with ring groove, rotary packing ring is sleeved in the ring groove, and the internal diameter of ring groove is greater than the external diameter of rotary packing ring.
The utility model good effect is as follows: the utility model stuffing box gland comprises the sealing body, is arranged on the stationary ring of sealing body upper end, be sleeved on the pressure ring that interior rotating ring of stationary ring ring groove and outer wall are provided with connecting thread, the internal diameter of ring groove is greater than the external diameter of rotating ring, the connecting thread that is connected with pressure ring is set on the stationary ring madial wall, and sealing body upper end outer wall is provided with connecting thread.With above-mentioned oil production equipment is example, when polished rod departs from the stuffing box gland center, rotating ring can be with the ring groove bias internal of polished rod at stationary ring, and be complementary with it according to the external dimension that the bias size of polished rod is adjusted dynamic and static ring, thereby reduce eccentric wear to greatest extent, reduce and leak, solve the operating polished rod eccentric wear of pumping unit, avoid occurring owing to leak the environmental pollution problem that causes.
Description of drawings
Accompanying drawing 1 is the utility model structural representation
Accompanying drawing 2,3,4 is the utility model pressure ring, rotating ring and stationary ring structural representation
Accompanying drawing 5,6 is the utility model rotary packing ring and stationary seal ring structural representation
Embodiment
Shown in accompanying drawing 1,2,3 and 4, the utility model stuffing box gland comprises sealing body 7, is arranged on the stationary ring 4 of sealing body 7 upper ends, be sleeved on the pressure ring 2 that rotating ring 3 in the ring groove 9 on the stationary ring 4 and outer wall are provided with connecting thread, the internal diameter of ring groove 9 is greater than the external diameter of rotating ring 3, the connecting thread that is connected with pressure ring 2 is set on stationary ring 4 madial walls, sealing body 7 upper end outer walls are provided with connecting thread, by a gland pressure ring 2, rotating ring 3, stationary ring 4 and sealing body 7 are linked together like this.On rotary packing ring 6 outer walls, be nested with spring ring in order to guarantee to hold tightly drive link 1 (polished rod).
Shown in accompanying drawing 1,5 and 6, black box is formed by rotary packing ring 6 and with rotary packing ring 6 close-fitting stationary seal rings 5 in the utility model stuffing box gland, stationary seal ring 5 is provided with ring groove 8, and rotary packing ring 6 is sleeved in the ring groove 8, and the internal diameter of ring groove 8 is greater than the external diameter of rotary packing ring 6.With above-mentioned oil production equipment is example, when polished rod 1 departs from sealing body 7 centers, rotating ring 3 can be with ring groove 9 bias internals of polished rod 1 at stationary ring 4, and be complementary with it according to the external dimension that the bias size of polished rod 1 is adjusted dynamic and static ring 3,4, thereby reduce eccentric wear to greatest extent, reduce and leak, solve the operating polished rod eccentric wear of pumping unit, avoid occurring owing to leak the environmental pollution problem that causes.
The utility model resolves into a cover static and dynamic sealing assembly with the Sealing of original arranged concentric in the stuffing box gland, as shown in Figure 1, with above-mentioned oil production equipment is example, when polished rod 1 departs from the stuffing box gland center, rotary packing ring 6 can be with the ring groove bias internal of polished rod 1 at stationary seal ring, and be complementary with it according to the external dimension that the bias size of polished rod 1 is adjusted dynamic and static seal ring 6,5, thereby reduce eccentric wear to greatest extent, reduce and leak.
Black box relies on sealing body 7 and is arranged on the rotating ring 3 and the stationary ring 4 that seal body 7 upper ends and compresses in the utility model stuffing box gland, rely on rotary packing ring 6 sealing polished rods 1, rely on the inwall of stationary seal ring 5 sealing sealing bodies 7, the gap that dynamic and static ring is 3,4 is then realized sealing according to dynamic and static ring seal ring 6,5 surface of contact according to labyrinth seal mechanism.
The utility model embodiment is as follows:
Embodiment 1: the utility model is at the existing sealing case size design of oil field production tree, and this scheme is as the criterion with the sealing case center, and radially tuningout overall dimensions is 2.5mm.
Embodiment 2: the utility model is as the criterion with the interface center at this scheme of bottom interface size (2.5 inches, the tubing interface size) of the existing sealing case of oil field production tree, and adopting isometrical caliber is 4.0mm to tuningout overall dimensions.
Embodiment 3: the utility model is at (2.5 inches of the bottom interface sizes of the existing sealing case of oil field production tree, the tubing interface size) this scheme is as the criterion with the interface center, adopts the enlarging special pipe, and 2.5 become 3 inches, 2.5 become 4 inches, radially tuningout overall dimensions reaches two kinds of design sizes of 6mm, 10mm.
Claims (2)
1. the stuffing box gland of a tunable center, it is characterized in that it comprises sealing body (7), is arranged on the stationary ring (4) that seals body (7) upper end, be sleeved on the pressure ring (2) that interior rotating ring (3) of stationary ring (4) ring groove (9) and outer wall are provided with connecting thread, the internal diameter of ring groove (9) is greater than the external diameter of rotating ring (3), the connecting thread that is connected with pressure ring (2) is set on stationary ring (4) madial wall, and sealing body (7) upper end outer wall is provided with connecting thread.
2. the stuffing box gland of a kind of tunable center according to claim 1, it is characterized in that between sealing body (7) and drive link (1), being provided with and being sleeved on the Sealing that the stationary seal ring (5) on the rotary packing ring (6) is formed by rotary packing ring (6), stationary seal ring (5) is provided with ring groove (8), rotary packing ring (6) is sleeved in the ring groove (8), and the internal diameter of ring groove (8) is greater than the external diameter of rotary packing ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201007179U CN201013896Y (en) | 2007-03-07 | 2007-03-07 | Seal cartridge with adjustable center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201007179U CN201013896Y (en) | 2007-03-07 | 2007-03-07 | Seal cartridge with adjustable center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201013896Y true CN201013896Y (en) | 2008-01-30 |
Family
ID=39025690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201007179U Expired - Fee Related CN201013896Y (en) | 2007-03-07 | 2007-03-07 | Seal cartridge with adjustable center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013896Y (en) |
-
2007
- 2007-03-07 CN CNU2007201007179U patent/CN201013896Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20120307 |