CN211008538U - Oil well energy storage formula well head packing box - Google Patents
Oil well energy storage formula well head packing box Download PDFInfo
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- CN211008538U CN211008538U CN201921023097.2U CN201921023097U CN211008538U CN 211008538 U CN211008538 U CN 211008538U CN 201921023097 U CN201921023097 U CN 201921023097U CN 211008538 U CN211008538 U CN 211008538U
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- packing box
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- energy storage
- pressing cap
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Abstract
The utility model discloses an oil well energy storage formula well head packing box, press cap, energy storage spring including packing box body, packing box, still include glan, energy storage spring adjustment mechanism, packing box and press cap adjustment mechanism, packing box presses cap central cavity including the epicoele and the cavity of resorption that are linked together, and the epicoele internal diameter is less than the cavity of resorption internal diameter, the centre bore that supplies the polished rod to pass is offered at the glan center, glan half section packing box body inside of packing is packed into, and the glan lower extreme compresses tightly the inside packing of packing box body, the glan upper end sets up outer convex ring platform, and outer convex ring platform external diameter is greater than packing box internal diameter, and outer convex ring platform external diameter is less than the internal diameter that packing box pressed cap cavity of resorption to set up sunken inner ring groove on outer convex ring platform upper surface, energy storage spring packs in the packing box presses cap to energy storage spring lower extreme. The utility model discloses utilize the elasticity of spring self, according to the degree of wear automatic compression of packing to carry out self-sealing to the space of polished rod and packing.
Description
Technical Field
The utility model belongs to the technical field of the oil field beam-pumping unit well head packing box and specifically relates to an oil well energy storage formula well head packing box.
Background
The oil pumping unit is the main hoisting equipment for crude oil production in oil field, and the oil well packing box is an important wellhead fitting for sealing the wellhead of the oil well and ensuring the normal production of the oil well. In the operation process of the oil pumping unit, the tightness of the packing seal of the oil well directly relates to whether the oil well can normally produce, and the tightness of the pressing cap of the packing box determines the tightness of the rubber packing. Normally, a packing box is fastened for one time in 3-5 days, when a polished rod is corroded or the polished rod is not aligned, the packing box is fastened for several times a day to ensure leakage-free, but because well liquid corrodes the polished rod and the packing has insufficient wear-resisting degree and other reasons, the sealing gap between the packing box and the packing is too large, a well mouth is polluted by crude oil, the environment is polluted in serious conditions, the well opening rate is reduced, and the oil well yield is influenced. The traditional packing box has the advantages that the strength is not well mastered when the packing box is fastened by pipe tongs, the sealing effect cannot be achieved due to over-loosening, the polished rod and the packing can be subjected to dry grinding when the packing box is too large, the service life of the packing is shortened, the leakage of a well mouth is caused, the power consumption of an oil pumping well is increased when the packing box is too tight, and the crude oil cost is increased. Therefore, a packing box pressing cap is needed to be developed to realize automatic sealing of the wellhead packing.
The patent number is CN 205225153U's a packing box for preventing beam-pumping unit polished rod corrodes, can realize the part the utility model discloses the function reaches sealed, right, prevents the purpose of eccentric wear, but the utility model discloses an elastic tension of spring can be utilized in energy storage spring's use, carries out compressing tightly of packing automatically, reduces the number of times of artificial fastening packing, and can reduce polished rod up-and-down motion and be the impact friction to the packing, prolongs the life of packing.
Application No.: 93222657.4 discloses an automatic releasing packing for oil field energy storage type pumping unit, which has the advantages of longitudinal pre-pressure to make the packing expand transversely at any time, over-tight fit between the packing and polish rod after wearing, and long sealing period. A spring column 1 is sleeved on a polished rod 8 in a packing bearing box 3 and above a packing 6 of a wellhead packing box, a packing cap 4 is sleeved outside the packing bearing box 3, and stress application screws 10 are symmetrically arranged between the packing cap 4 and a wellhead four-way 9. After the force is applied to the screw rod, the packing cap moves downwards to compress the spring and tightly press the packing, and the spring stores energy, so that the packing is prestressed, and sealing is facilitated.
Compared with the above-mentioned published technology, the present application has the following differences:
the packing fastening bolt 7 is fixed on a pressing cap of the blowout prevention box, so that the structure is simple and the operation is convenient; the 93222657.4 packing fastening bolt 10 is fixed on the big four-way of the wellhead, and the two parts have obvious difference.
The difference is that the packing pre-tightening handle 3 is welded on the packing pressing cap 2, so that the early-stage adjustment and the later-stage sealing compensation after the packing is worn can be performed on the early-stage sealing early warning force of the packing; 93222657.4 the invention does not have the above-mentioned adjusting function
And the shapes of the spring upper pressing cap and the sealing packing in the two documents are different.
Technical scheme and the technical problem that will solve and the beneficial effect who produces of above disclosure technique all with the utility model discloses inequality, to the utility model discloses more technical characteristics and the technical problem and the beneficial effect that will solve all do not have the technological inspiration in the above technical document that discloses.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil well energy storage formula well head packing box, the elasticity of usable spring self is according to the degree of wear automatic compression of packing to carry out self-sealing to the space of polished rod and packing.
In order to achieve the purpose, the utility model adopts the following technical scheme that an oil well energy storage type wellhead packing box comprises a packing box body, a packing box pressing cap, an energy storage spring, a gland, an energy storage spring adjusting mechanism and a packing box pressing cap adjusting mechanism, wherein a packing box pressing cap central cavity comprises an upper cavity and a lower cavity which are communicated, the inner diameter of the upper cavity is smaller than that of the lower cavity, the center of the gland is provided with a central hole for a polished rod to pass through, the lower half part of the gland is arranged in the packing box body, the lower end of the gland tightly presses a packing in the packing box body, the upper end of the gland is provided with an outer convex ring platform, the outer diameter of the outer convex ring platform is larger than that of the packing box, the outer diameter of the outer convex ring platform is smaller than that of the lower cavity of the packing box pressing cap, a concave inner ring groove is arranged on the upper surface of the outer convex ring platform, the energy storage spring is arranged in, the inner wall of the lower cavity of the packing box pressing cap is in threaded connection with the outer wall of the packing box body, the lower end of the energy storage spring adjusting mechanism is fixedly connected with the upper end face of the packing box pressing cap, the upper end of the energy storage spring adjusting mechanism presses the energy storage spring, and the packing box pressing cap adjusting mechanism is fixedly connected with the outer wall of the periphery of the packing box pressing cap.
The energy storage spring adjustment mechanism comprises a spring pressing cap, a spring adjusting bolt and a spring adjusting nut, wherein a spring pressing cap center hole for a polished rod to pass through is formed in the center of the spring pressing cap, the inner diameter of the spring pressing cap center hole is smaller than the outer diameter of the energy storage spring, a bolt hole for the spring adjusting bolt to pass through is further formed in the spring pressing cap, the lower end of the spring adjusting bolt is connected with the packing box pressing cap, and the upper end of the spring adjusting bolt is connected and fixed with the spring adjusting nut after passing through the bolt hole of the spring pressing cap.
The packing box is characterized in that the number of the spring adjusting bolts is at least two, the upper end face of the packing box pressing cap is uniformly provided with at least two threaded holes, the number of the threaded holes is the same as that of the spring adjusting bolts, and the lower ends of the spring adjusting bolts are installed in the threaded holes.
The lower end of the spring adjusting bolt is welded on the upper end face of the packing box pressing cap.
The packing box pressure cap adjusting mechanism comprises an adjusting handle, and one end of the adjusting handle is welded to the outer wall of the circumference of the packing box pressure cap.
At least one adjusting handle is arranged.
Compared with the prior art, the utility model following beneficial effect has:
the oil well energy storage type wellhead packing box is actually researched and developed by combining production, and mainly comprises an energy storage packing box body, a packing pressing cap, an energy storage spring, a spring pressing cap, a spring adjusting bolt and the like. When the energy storage type wellhead packing box is used, the energy storage type wellhead packing box is firstly installed, the packing box pressing cap tightly presses the packing added to an oil well, the polished rod and the packing of the oil well are ensured to be in a sealing state, the energy storage spring always supplies a downward acting force to the oil well sealing packing under the action of the pressing cap and the adjusting bolt, and the energy storage spring continuously extends along with continuous abrasion of the packing, so that the packing is compressed, and the oil well packing and the polished rod are ensured to be always in a sealing state.
Drawings
Fig. 1 is the utility model relates to an oil well energy storage formula well head packing box's schematic structure.
The labels in the figure are: the packing box comprises a Glan 1, a packing box pressing cap 2, an adjusting handle 3, an energy storage spring 4, a spring pressing cap 5, a spring adjusting bolt 6 and a spring adjusting nut 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
an oil well energy storage type wellhead packing box comprises a packing box body, a packing box pressing cap 2, an energy storage spring 4, a gland 1, an energy storage spring adjusting mechanism and a packing box pressing cap adjusting mechanism, wherein a central cavity of the packing box pressing cap 2 comprises an upper cavity and a lower cavity which are communicated, the inner diameter of the upper cavity is smaller than that of the lower cavity, a central hole for a polished rod to pass through is formed in the center of the gland 1, the lower half section of the gland is arranged in the packing box body, the lower end of the gland presses a packing in the packing box body, an outer convex ring platform is arranged at the upper end of the gland and is larger than that of the packing box, the outer diameter of the outer convex ring platform is smaller than that of the lower cavity of the packing box pressing cap, a concave inner annular groove is formed in the upper surface of the outer convex ring platform, the energy storage spring 4 is arranged in the packing box pressing cap, the lower end of the energy storage spring is pressed against the concave inner annular groove of the gland, and the, the lower end of the energy storage spring adjusting mechanism is fixedly connected with the upper end face of the packing box pressing cap, the upper end of the energy storage spring adjusting mechanism presses the energy storage spring, and the packing box pressing cap adjusting mechanism is fixedly connected with the outer wall of the periphery of the packing box pressing cap.
Energy storage spring adjustment mechanism includes that the spring presses cap 5, spring adjusting bolt 6, spring adjusting nut 7, the spring presses the cap center to set up the spring that supplies the polished rod to pass and presses the cap centre bore, and the spring presses cap centre bore internal diameter to be less than the external diameter of energy storage spring simultaneously, still set up the bolt hole that supplies spring adjusting bolt to pass on the spring pressure cap, the packing box is connected to spring adjusting bolt lower extreme and is pressed the cap, and the spring adjusting bolt upper end is connected fixedly with spring adjusting nut after passing the bolt hole that the spring pressed the cap.
The packing box is characterized in that the number of the spring adjusting bolts is at least two, the upper end face of the packing box pressing cap is uniformly provided with at least two threaded holes, the number of the threaded holes is the same as that of the spring adjusting bolts, and the lower ends of the spring adjusting bolts are installed in the threaded holes.
Or the lower end of the spring adjusting bolt is welded on the upper end face of the packing box pressing cap.
The packing box pressure cap adjusting mechanism comprises an adjusting handle 3, and one end of the adjusting handle is welded on the outer wall of the circumference of the packing box pressure cap.
At least one adjusting handle is arranged.
After the rubber packing is added, the gland 1 is installed firstly, then the energy storage spring 4 sleeved on the polished rod is placed into the packing box pressing cap 2 and is seated in the groove of the gland 1, the purpose of righting the energy storage spring 4 is achieved, the spring adjusting bolt 6 is in threaded connection with the packing box pressing cap 2, the energy storage spring 4 is pressed by the spring pressing cap 5, and the tightness of the energy storage spring 4 is adjusted through the spring adjusting nut 7.
The application comprises the following steps: after the packing is added to the oil well, the energy storage type wellhead packing box is installed firstly, the packing box pressing cap tightly presses the packing added to the oil well, the polished rod and the packing of the oil well are guaranteed to be in a sealing state, the energy storage spring always supplies a downward acting force to the oil well sealing packing under the action of the pressing cap and the adjusting bolt, the energy storage spring continuously extends along with continuous abrasion of the packing, so that the packing is compressed, the oil well packing and the polished rod are always guaranteed to be in a sealing state, oil well pollution events caused by the fact that the packing is not fastened timely are avoided, yield loss is avoided, and the oil well time rate is improved. When the anti-impact distance is adjusted, the adjusting bolt and the energy storage spring can be taken down, and the square clamp seat is not hindered when the load is picked. When the packing tightness needs to be adjusted, the packing box pressing cap adjusting handle 3 can be used for adjusting, the wrench adjusting spring adjusting nut 7 can also be used for adjusting, and time and labor are saved. The device not only has very important significance to clean production, energy conservation and consumption reduction, but also can reduce the times of replacing packing and the well shut-in time, and increase the yield of crude oil.
This packing box pressure cap compresses tightly the packing that adds with the oil well, guarantees that oil well polished rod and packing are in encapsulated situation, and energy storage spring is under the effect of pressing cap and adjusting bolt this moment, gives the downward effort of oil well sealed packing all the time, along with the continuous wearing and tearing of packing, and energy storage spring constantly extends to compress the packing, in order to guarantee that oil well packing and polished rod are in encapsulated situation all the time. The utility model discloses a characteristics lie in, the oil well has added the packing after, need not often manual regulation fastening packing, utilizes the spring automatic flexible just can realize, when having reduced worker intensity of labour, has prolonged the life of packing, rate when improving the well-opening. The device fills up the technical blank and has popularization value.
In the description of the present invention, it should be understood that the orientation indication or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An oil well energy storage type wellhead packing box comprises a packing box body, a packing box pressing cap and an energy storage spring, and is characterized by further comprising a gland, an energy storage spring adjusting mechanism and a packing box pressing cap adjusting mechanism, wherein a central cavity of the packing box pressing cap comprises an upper cavity and a lower cavity which are communicated, the inner diameter of the upper cavity is smaller than that of the lower cavity, a central hole for a polished rod to pass through is formed in the center of the gland, the lower half section of the gland is arranged in the packing box body, the lower end of the gland presses a packing in the packing box body, an outer convex ring platform is arranged at the upper end of the gland, the outer diameter of the outer convex ring platform is larger than that of the packing box, the outer diameter of the outer convex ring platform is smaller than that of the lower cavity of the packing box pressing cap, a concave inner annular groove is formed in the upper surface of the outer convex ring platform, the energy storage spring is arranged in the packing box pressing cap, the lower end of the energy storage spring is pressed against, the lower end of the energy storage spring adjusting mechanism is fixedly connected with the upper end face of the packing box pressing cap, the upper end of the energy storage spring adjusting mechanism presses the energy storage spring, and the packing box pressing cap adjusting mechanism is fixedly connected with the outer wall of the periphery of the packing box pressing cap.
2. The energy-storing wellhead packing box of an oil well according to claim 1, characterized in that the energy-storing spring adjusting mechanism comprises a spring pressing cap, a spring adjusting bolt and a spring adjusting nut, wherein the center of the spring pressing cap is provided with a spring pressing cap center hole for a polish rod to pass through, the inner diameter of the spring pressing cap center hole is smaller than the outer diameter of the energy-storing spring, the spring pressing cap is further provided with a bolt hole for the spring adjusting bolt to pass through, the lower end of the spring adjusting bolt is connected with the packing box pressing cap, and the upper end of the spring adjusting bolt passes through the bolt hole of the spring pressing cap and is connected and fixed by the spring adjusting nut.
3. The energy-storing wellhead packing box of an oil well according to claim 2, characterized in that the number of the spring adjusting bolts is at least two, the upper end face of the packing box pressing cap is uniformly provided with at least two threaded holes, the number of the threaded holes is the same as that of the spring adjusting bolts, and the lower ends of the spring adjusting bolts are installed in the threaded holes.
4. The energy-storing wellhead packing box of claim 3, wherein the lower end of the spring adjusting bolt is welded on the upper end face of the packing box pressing cap.
5. The energy-storing wellhead packing box of claim 1, 2, 3 or 4, wherein the packing box gland adjusting mechanism comprises an adjusting handle, and one end of the adjusting handle is welded on the circumferential outer wall of the packing box gland.
6. The energy storing wellhead packing kit of claim 5, wherein at least one adjustment handle is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921023097.2U CN211008538U (en) | 2019-07-02 | 2019-07-02 | Oil well energy storage formula well head packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921023097.2U CN211008538U (en) | 2019-07-02 | 2019-07-02 | Oil well energy storage formula well head packing box |
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| Publication Number | Publication Date |
|---|---|
| CN211008538U true CN211008538U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921023097.2U Active CN211008538U (en) | 2019-07-02 | 2019-07-02 | Oil well energy storage formula well head packing box |
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| CN (1) | CN211008538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717211A (en) * | 2023-08-10 | 2023-09-08 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
-
2019
- 2019-07-02 CN CN201921023097.2U patent/CN211008538U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717211A (en) * | 2023-08-10 | 2023-09-08 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
| CN116717211B (en) * | 2023-08-10 | 2023-11-28 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
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