CN216588528U - Air storage type multi-stage polish rod sealing device - Google Patents
Air storage type multi-stage polish rod sealing device Download PDFInfo
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- CN216588528U CN216588528U CN202220949017.1U CN202220949017U CN216588528U CN 216588528 U CN216588528 U CN 216588528U CN 202220949017 U CN202220949017 U CN 202220949017U CN 216588528 U CN216588528 U CN 216588528U
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Abstract
The utility model relates to an oil development auxiliary device technical field, in particular to multistage polished rod sealing device of gas storage formula. The technical scheme is as follows: the upper end of universal ball head installs the second grade seal receptacle, and the second grade seal receptacle inner chamber is equipped with the second grade seal cover, installs tertiary seal receptacle in the upper end of second grade seal receptacle, and the gas storage rubber bag is installed to the inner chamber of tertiary seal receptacle, installs the sealed lid of gas storage rubber bag at the top of tertiary seal receptacle, installs the magnet steel at the upside that the sealed lid of gas storage rubber bag. The beneficial effects are that: the packing, the secondary sealing sleeve and the gas storage rubber bag are adopted for multi-stage sealing, no gap can be formed between the gas storage rubber bag and the polished rod due to the pressure of the gas storage rubber bag, sealing is realized better, and the phenomena of leakage, overflow, dripping and leakage are avoided; the magnetic steel is adopted, and the magnetic steel is adsorbed around the polished rod under the action of strong magnetic field attraction to form sealing, so that the friction coefficient between the magnetic steel and the polished rod is greatly reduced, the power consumption of the oil pumping unit is reduced, and the oil extraction cost is reduced.
Description
Technical Field
The utility model relates to an oil development auxiliary device technical field, in particular to multistage polished rod sealing device of gas storage formula.
Background
At present, in the oil industry, generally install the polished rod sealer in the well head of pumping well, can prevent through the polished rod sealer that oil gas from leaking, avoid environmental pollution, but in the use of polished rod sealer, because the eccentric wear and the up-and-down reciprocating motion of polished rod, rubber in the packing box, sealed disk root are easy to wear and tear, lose the sealing effect, the normal life of sealed packing has seriously been influenced, produce and run, emit, drip, leak the phenomenon, often need frequently to shut down the well and change the packing, make the cost and the management degree of difficulty increase, oil recovery workman's intensity of labour has also been increased, and simultaneously, cause ground pollution and crude oil loss easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multistage polished rod sealing device of gas storage formula to the above-mentioned defect that prior art exists, adopted packing, second grade seal cover, gas storage rubber bag and the multistage of strong magnetism sealed, prolonged life by a wide margin, do not need frequently to shut down the well and change the packing.
The utility model provides a multistage polished rod sealing device of gas storage formula, its technical scheme is: comprises a sealer body, a pressure reducer, a gate, a packing sheath, a ball head sealing cover, a packing, a universal ball head and a packing pressure pad, wherein the pressure reducer and the gate are arranged in the sealer body, a ball head sealing cover and a universal ball head are arranged at the upper end of the sealer body, a packing sheath, a packing and a packing pressure pad are arranged in the inner cavity of the universal ball head, wherein, the device also comprises a secondary sealing seat, a secondary sealing sleeve, a tertiary sealing seat, an air storage rubber bag sealing cover, magnetic steel and a magnetic steel sealing cover, a second-stage sealing seat is arranged at the upper end of the universal ball head, a second-stage sealing sleeve is arranged in the inner cavity of the second-stage sealing seat, a third-stage sealing seat is arranged at the upper end of the second-stage sealing seat, an air storage rubber bag is arranged in the inner cavity of the third-stage sealing seat, the top of the third-stage sealing seat is provided with a sealing cover of the gas storage rubber bag, the upper side of the sealing cover of the gas storage rubber bag is provided with magnetic steel, and the top of the sealing cover of the gas storage rubber bag is provided with a sealing cover of the magnetic steel.
Preferably, the gas storage rubber bag sealing cover comprises a cover main body, bolt counter bores, a magnetic steel mounting groove and a polished rod penetrating hole, the cover main body is of a circular ring structure, the polished rod penetrating hole and the magnetic steel mounting groove are arranged in the middle of the cover main body, the polished rod penetrating hole is located in the center of the magnetic steel mounting groove, and the cover main body is provided with the bolt counter bores.
Preferably, the magnetic steel mounting groove is of a circular ring structure, the magnetic steel is of a circular ring structure, and the outer diameter of the magnetic steel is smaller than the inner diameter of the magnetic steel mounting groove.
Preferably, the air storage rubber bag comprises a rubber main body, air storage chambers and a central hole, wherein the rubber main body is of a cylindrical structure, the air storage chambers are arranged inside the rubber main body, and the central hole is formed in the middle of the rubber main body.
Preferably, the air reservoir is a cylindrical cavity or an elliptical cavity.
Preferably, handles are respectively arranged on two sides of the secondary sealing seat.
Preferably, foretell universal bulb includes top connection, connecting neck, bulb, boss, bulb hole, external screw thread and sealed chamber down, the bulb is spherical structure down, and bulb upper portion forms a body structure through connecting neck and top connection under, and inside is equipped with sealed chamber, the lower extreme of bulb is equipped with the boss down, and the center of boss is equipped with the bulb hole, the outer wall of top connection is equipped with the external screw thread.
The utility model has the advantages that:
the universal ball head has the offset adjusting function, so that the eccentric wear of the packing and the polished rod is effectively avoided, the uniform wear of the packing is ensured, meanwhile, the appearance stabbing of the polished rod caused by the eccentric wear is also avoided, and the service life is greatly prolonged;
secondly, the packing, the secondary sealing sleeve and the gas storage rubber bag are adopted for multi-stage sealing, no gap can be formed between the gas storage rubber bag and the polished rod due to the pressure of the gas storage rubber bag, sealing is better realized, the phenomena of running, overflowing, dripping and leaking are avoided, and the service life is prolonged;
magnetic steel is adopted, sealing is formed around the polished rod under the action of strong magnetic field attraction, and the friction coefficient between the magnetic steel and the polished rod can be greatly reduced, so that the power consumption of the oil pumping unit is reduced, and the oil extraction cost is reduced;
in a word, the utility model discloses maintain convenient, long service life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a sealing cover of the air storage rubber bag;
FIG. 3 is a schematic view of the structure of the gas storage rubber bladder;
FIG. 4 is a schematic structural view of a secondary seal retainer;
FIG. 5 is a schematic structural view of a gimbaled ball head;
in the upper diagram: the device comprises a sealer body 1, a pressure reducer 2, a gate 3, a packing sheath 4, a ball head sealing cover 5, a packing 6, a universal ball head 7, a packing pressing pad 8, a secondary sealing seat 9, a secondary sealing sleeve 10, a tertiary sealing seat 11, a gas storage rubber bag 12, a gas storage rubber bag sealing cover 13, magnetic steel 14, a magnetic steel sealing cover 15 and a polished rod 16;
the novel polished rod sealing device comprises an upper connector 7.1, a connecting neck 7.2, a lower ball head 7.3, a boss 7.4, a ball head hole 7.5, external threads 7.6, a sealing cavity 7.7, a handle 9.1, a rubber main body 12.1, an air storage chamber 12.2, a central hole 12.3, a cover main body 13.1, a bolt counter bore 13.2, a magnetic steel mounting groove 13.3 and a polished rod penetrating hole 13.4.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to fig. 2, the utility model provides a sealed lid 13 of gas storage rubber bag passes through hole 13.4 including lid main part 13.1, bolt counter bore 13.2, magnet steel mounting groove 13.3 and polished rod, lid main part 13.1 be ring annular structure lid main part 13.1's middle part be equipped with the polished rod and pass through hole 13.4 and magnet steel mounting groove 13.3, the polished rod passes through the center that hole 13.4 is located magnet steel mounting groove 13.3, is equipped with a plurality of bolt counter bores 13.2 on lid main part 13.1.
Preferably, the magnetic steel mounting groove 13.3 is of a circular ring structure, the magnetic steel 14 is of a circular ring structure, and the outer diameter of the magnetic steel 14 is smaller than the inner diameter of the magnetic steel mounting groove 13.3.
Referring to fig. 3, the air storage rubber bag 12 of the present invention includes a rubber main body 12.1, an air storage chamber 12.2, and a central hole 12.3, wherein the rubber main body 12.1 is a cylindrical structure, a plurality of air storage chambers 12.2 are disposed inside the rubber main body 12.1, and the central hole 12.3 is disposed in the middle of the rubber main body 12.1.
Preferably, the air reservoir 12.2 is a cylindrical cavity or an oval cavity.
Referring to fig. 4, the two sides of the second-stage sealing seat 9 of the present invention are respectively provided with a handle 9.1.
Referring to fig. 5, the utility model provides an universal bulb 7 includes top connection 7.1, connects neck 7.2, bulb 7.3, boss 7.4, bulb hole 7.5, external screw thread 7.6 and seal chamber 7.7 down, bulb 7.3 is spherical structure down, is connected integrative structure through connecting neck 7.2 and top connection 7.1 on bulb 7.3 upper portion down, and inside is equipped with seal chamber 7.7, lower bulb 7.3's lower extreme is equipped with boss 7.4, and boss 7.4's center is equipped with bulb hole 7.5, the outer wall of top connection 7.1 is equipped with external screw thread 7.6.
When the utility model is used, the polish rod 16 passes through the center of the utility model, the packing sheath 4, the packing 6 and the packing press pad 8 are arranged between the universal ball head 7 and the polish rod 16, and the lower ball head 7.3 of the universal ball head 7 is matched with the upper ball seat of the sealer body 1; the universal ball head 7 is connected with a second-stage sealing seat 9 through an external thread 7.6, a second-stage sealing sleeve 10 is installed in a cavity between the second-stage sealing seat 9 and a polished rod 16, a third-stage sealing seat 11 is installed at the upper end of the second-stage sealing seat 9, a gas storage rubber bag 12 is installed in a cavity between the upper portion of the third-stage sealing seat 11 and the polished rod 16, a gas storage rubber bag sealing cover 13 is installed at the upper end of the gas storage rubber bag 12, magnetic steel 14 is installed in a cavity between the gas storage rubber bag sealing cover 13 and the polished rod 16, a magnetic steel sealing cover 15 is installed at the top of the gas storage rubber bag sealing cover 13 and is fixedly connected through a bolt, and the universal ball head 7 plays a role in deviation adjustment.
The utility model has the advantages that:
firstly, the universal ball head 7 has an offset adjusting function, so that eccentric wear of the packing 6 and the polished rod 16 is effectively avoided, uniform wear of the packing 6 is ensured, simultaneously, appearance stabbing caused by the eccentric wear of the polished rod 16 is also avoided, and the service life is greatly prolonged;
secondly, a first-stage seal is formed by the pressure reducer 2 and the gate 3 of the sealer body 1, a second-stage seal is formed by the packing 6, a third-stage seal is formed by the second-stage seal sleeve 10, a fourth-stage seal is formed by the gas storage rubber bag 12, no gap exists between the gas storage rubber bag 12 and the polish rod 16 due to the pressure of the gas storage rubber bag, the seal is better realized, the phenomena of leakage, overflow, dripping and leakage are avoided, and the service life is prolonged;
thirdly, the magnetic steel 14 is adopted as a fifth-stage seal, the seal is formed around the polished rod 16 under the action of strong magnetic field attraction, and the friction coefficient between the polished rod 16 and the magnetic steel can be greatly reduced, so that the power consumption of the oil pumping unit is reduced, and the oil extraction cost is reduced;
in a word, the utility model discloses maintain convenient, long service life.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent changes made according to the technical solution of the present invention belong to the scope of the present invention as far as possible.
Claims (7)
1. The utility model provides a multistage polish rod sealing device of gas storage formula, includes sealer body (1), step-down transformer (2), gate (3), packing sheath (4), ball head sealing lid (5), packing (6), universal bulb (7) and packing pressure pad (8), sealer body (1) internally mounted have step-down transformer (2) and gate (3), at the sealed lid of upper end installation ball head (5) and universal bulb (7) of sealer body (1), install packing sheath (4), packing (6) and packing pressure pad (8) at universal ball head (7) inner chamber, characterized by: the universal ball joint sealing structure is characterized by further comprising a second-stage sealing seat (9), a second-stage sealing sleeve (10), a third-stage sealing seat (11), a gas storage rubber bag (12), a gas storage rubber bag sealing cover (13), magnetic steel (14) and a magnetic steel sealing cover (15), wherein the second-stage sealing seat (9) is installed at the upper end of the universal ball head (7), the second-stage sealing sleeve (10) is arranged in the inner cavity of the second-stage sealing seat (9), the third-stage sealing seat (11) is installed at the upper end of the second-stage sealing seat (9), the gas storage rubber bag (12) is installed in the inner cavity of the third-stage sealing seat (11), the gas storage rubber bag sealing cover (13) is installed at the top of the third-stage sealing seat (11), the magnetic steel (14) is installed at the upper side of the gas storage rubber bag sealing cover (13), and the magnetic steel sealing cover (15) is installed at the top of the gas storage rubber bag sealing cover (13).
2. The air-storing multi-stage polish rod sealing device of claim 1, wherein: the gas storage rubber bag sealing cover (13) comprises a cover main body (13.1), bolt counter bores (13.2), a magnetic steel mounting groove (13.3) and a polished rod penetrating hole (13.4), wherein the cover main body (13.1) is of a circular ring-shaped structure, the polished rod penetrating hole (13.4) and the magnetic steel mounting groove (13.3) are arranged in the middle of the cover main body (13.1), the polished rod penetrating hole (13.4) is located in the center of the magnetic steel mounting groove (13.3), and the cover main body (13.1) is provided with a plurality of bolt counter bores (13.2).
3. The air-storing multi-stage polish rod sealing device of claim 2, wherein: the magnetic steel mounting groove (13.3) is of a circular ring structure, the magnetic steel (14) is of a circular ring structure, and the outer diameter of the magnetic steel (14) is smaller than the inner diameter of the magnetic steel mounting groove (13.3).
4. The air-storing multi-stage polish rod sealing device of claim 1, wherein: the air storage rubber bag (12) comprises a rubber main body (12.1), air storage chambers (12.2) and a central hole (12.3), wherein the rubber main body (12.1) is of a cylindrical structure, the air storage chambers (12.2) are arranged in the rubber main body (12.1), and the central hole (12.3) is formed in the middle of the rubber main body (12.1).
5. The air-storing multi-stage polish rod sealing device of claim 4, wherein: the air reservoir (12.2) is a cylindrical cavity or an elliptical cavity.
6. The air-storing multi-stage polish rod sealing device of claim 1, wherein: handles (9.1) are respectively arranged on two sides of the secondary sealing seat (9).
7. The air-storing multi-stage polish rod sealing device of claim 1, wherein: universal bulb (7) include top connection (7.1), connect neck (7.2), bulb (7.3), boss (7.4), bulb hole (7.5), external screw thread (7.6) and sealed chamber (7.7) down, bulb (7.3) are spherical structure down, are connected through connecting neck (7.2) and top connection (7.1) on bulb (7.3) upper portion down and are formed an organic whole structure, and inside is equipped with sealed chamber (7.7), the lower extreme of bulb (7.3) is equipped with boss (7.4) down, and the center of boss (7.4) is equipped with bulb hole (7.5), the outer wall of top connection (7.1) is equipped with external screw thread (7.6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220949017.1U CN216588528U (en) | 2022-04-24 | 2022-04-24 | Air storage type multi-stage polish rod sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220949017.1U CN216588528U (en) | 2022-04-24 | 2022-04-24 | Air storage type multi-stage polish rod sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216588528U true CN216588528U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220949017.1U Active CN216588528U (en) | 2022-04-24 | 2022-04-24 | Air storage type multi-stage polish rod sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216588528U (en) |
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- 2022-04-24 CN CN202220949017.1U patent/CN216588528U/en active Active
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