CN219281711U

CN219281711U - Special balancer for high-power U-Tem equipment

Info

Publication number: CN219281711U
Application number: CN202223530062.2U
Authority: CN
Inventors: 魏建会
Original assignee: Beijing Huahui Detection Technology Co ltd
Current assignee: Beijing Huahui Detection Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-30
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of special balancers for U-Tem equipment, and discloses a special balancer for high-power U-Tem equipment, which comprises a lower plug, wherein a balance cylinder is arranged on the left side of the lower plug, a disc spring is sleeved on the inner wall of the balance cylinder, a threaded ring component is movably arranged at one end of the balance cylinder far away from the lower plug, inner wall threads on the upper side and the lower side of the lower plug are sleeved with inner hexagonal set screws, a piston is movably sleeved on the inner wall of the balance cylinder, and an X-shaped sealing ring positioned inside the balance cylinder is sleeved on the outer wall of the piston. According to the utility model, through the cooperation among the tension spring assembly, the piston, the balance cylinder and the lower plug, the problem of corrosion of complex medium in a shaft to the tension spring assembly is effectively solved by the arrangement of the tension spring assembly, and the tension spring assembly is adopted to replace a return spring and is arranged in an upper instrument cavity of the piston, so that the spring is completely isolated from external environment medium, and corrosion and blockage of complex medium in the shaft to the spring are avoided.

Description

Special balancer for high-power U-Tem equipment

Technical Field

The utility model relates to the technical field of special balancers for U-Tem equipment, in particular to a special balancer for high-power U-Tem equipment.

Background

The working depth of the transducer of the U-Tem system core equipment is not equal to 2000m-5000m, the working environment temperature of the transducer is synchronously increased along with the increase of the depth of a measure well, heat is generated while the transducer works, and silicone oil in the transducer shell thermally expands, so that the pressure in the instrument shell is increased; after the transducer is operated and the well is lifted, the pressure in the cavity is reduced along with the reduction of the temperature of the silicone oil in the shell, so that the depths of the wells are different, and the pressure in the well shaft is also different, namely the internal and external pressures of the transducer operating environment are also changed.

However, in the balancer in the prior U-Tem system core equipment transducer, the return spring is arranged at the bottom of the piston, the spring is soaked with mixed liquid in an oil-water well shaft, corrosion and gas corrosion are easy to generate, the piston in the balancer cannot be effectively reset, so that functions fail, negative pressure is generated in the instrument cavity to be excessively large, deformation and damage are caused, in addition, the transducer cavity is not provided with a pressure relief hole, an extremely severe working environment is encountered, and when a limit pressure difference is generated inside and outside the transducer cavity, the phenomenon that the shell is deformed by pressure and even is burst still occurs, so that the whole instrument is scrapped.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a special balancer for high-power U-Tem equipment, which has the advantages of ensuring the safety and stability of instruments, avoiding corrosion and blockage of complex media in a shaft to springs and ensuring that the media inside and outside the cavity are not polluted mutually, and solves the problems in the prior art.

The utility model provides the following technical scheme: the special balancer for the high-power U-Tem equipment comprises a lower plug, a balance cylinder is arranged on the left side of the lower plug, a disc spring is sleeved on the inner wall of the balance cylinder, a threaded ring assembly is movably arranged at one end of the balance cylinder, which is far away from the lower plug, inner hexagonal set screws are sleeved on the inner wall threads on the upper side and the lower side of the lower plug, a piston is movably sleeved on the inner wall of the balance cylinder, an X-shaped sealing ring positioned inside the balance cylinder is sleeved on the outer wall of the piston, an inner hexagonal screw is sleeved on the inner wall threads on the left end of the piston, an oil plug positioned on the left side of the piston is sleeved on the outer wall threads of the inner hexagonal screw, an oil plug corresponding to the position is arranged on the upper side and the lower side of the balance cylinder, a middle joint assembly is sleeved on the outer wall of the end, which is far away from the inner joint assembly, and a hole positioned on the left side of the tension spring assembly is mounted on the inner wall of the middle joint assembly.

Preferably, the number of the disc springs is seven, and the disc springs are stacked face to face and back to back.

Preferably, the left side of piston has seted up interior hexagonal screw hole, X type seal groove has been seted up to the outer wall of piston, and the inner wall of X type seal groove and the outer wall activity joint of X type sealing washer.

Preferably, the tension spring assembly comprises a tension spring seat, the tension spring seat is arranged on the right side of the hole retainer ring, a tension spring is sleeved on the outer wall of one end, far away from the hole retainer ring, of the tension spring seat, and a tension spring head is sleeved on the inner wall of the right end of the tension spring.

Preferably, the inner wall of the right end of the tension spring head is in threaded sleeve connection with the outer wall of the inner hexagonal screw, and the outer wall of one end of the inner hexagonal screw, which is far away from the tension spring head, is in threaded sleeve connection with the inner wall of the inner hexagonal threaded hole.

Preferably, a sealing ring is arranged on the outer wall of the oil plug.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the cooperation among the tension spring assembly, the piston, the balance cylinder and the lower plug, the problem of corrosion of complex medium in a shaft to the tension spring assembly is effectively solved by the arrangement of the tension spring assembly, and the tension spring assembly is adopted to replace a return spring and is arranged in an upper instrument cavity of the piston, so that the spring is completely isolated from external environment medium, and corrosion and blockage of complex medium in the shaft to the spring are avoided.

2. According to the utility model, through the cooperation between the balance cylinder, the disc spring, the piston and the lower plug, the piston is provided with the double-seal sealing ring structure and is additionally provided with the oil drain hole, when the pressure in the cavity of the instrument is continuously increased, the piston descends to the position of the oil drain groove of the balance cylinder, high-pressure oil in the cavity is discharged from the oil drain hole, when the pressure in the cavity of the instrument is close to balance, the piston rapidly returns to the balance cylinder under the action of the disc spring and the tension spring assembly to close the oil drain hole, and due to the double-seal structure of the piston, an oil sewage medium in a shaft cannot enter the cavity of the instrument, so that the safety and stability of the instrument are effectively ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front view of the lower plug of the present utility model;

FIG. 3 is a cross-sectional view of the tension spring assembly of the present utility model;

FIG. 4 is a cross-sectional view of a piston of the present utility model;

fig. 5 is a cross-sectional view of the internal hexagonal screw hole of the present utility model.

In the figure: 1. a lower plug; 2. a disc spring; 3. a balance cylinder; 4. a threaded ring assembly; 5. a hexagon socket screw; 6. a piston; 7. an X-shaped sealing ring; 8. an inner hexagon screw; 9. a tension spring assembly; 901. a tension spring seat; 902. a tension spring; 903. a tension spring head; 10. an oil plug; 11. a middle joint assembly; 12. a retainer ring for holes; 13. an internal hexagonal threaded hole; 14. an X-shaped sealing groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 4, the special balancer for high-power U-Tem equipment comprises a lower plug 1, a balance cylinder 3 is installed on the left side of the lower plug 1, a disc spring 2 is sleeved on the inner wall of the balance cylinder 3, several groups of disc springs 2 are installed at the joint of the balance cylinder 3 and the lower plug, a piston 6 reaches the oil drain hole position of the balance cylinder 3, after pressure is released in an instrument cavity, an auxiliary cooperation tension spring enables the piston 6 to reset quickly, one end of the balance cylinder 3, far from the lower plug 1, is movably provided with a threaded ring assembly 4, inner wall threads on the upper side and the lower side of the lower plug 1 are sleeved with an inner hexagonal set screw 5, the inner wall of the balance cylinder 3 is movably sleeved with a piston 6, an outer wall of the piston 6 is sleeved with an X-shaped sealing ring 7 positioned inside the balance cylinder 3, an inner wall thread on the left end of the piston 6 is sleeved with an inner hexagonal screw 8, an outer wall thread of the inner hexagonal screw 8 is sleeved with a tension spring assembly 9 positioned on the left side of the piston 6, an oil plug 10 corresponding to the upper side and the lower side of the balance cylinder 3 is arranged, an outer wall of one end of the tension spring assembly 9, far from the inner hexagonal screw 8 is sleeved with a middle joint assembly 11, and the inner wall of the middle joint assembly 11 is provided with a hole positioned on the left side of the retaining ring assembly 12.

The number of the disc springs 2 is seven, and the disc springs 2 are stacked face to face and back to back, so that the middle joint and the lower plug of the balance shell are assembled.

Referring to fig. 2 and 3, an inner hexagonal threaded hole 13 is formed in the left side of the piston 6, an X-shaped sealing groove 14 is formed in the outer wall of the piston 6, and the inner wall of the X-shaped sealing groove 14 is movably clamped with the outer wall of the X-shaped sealing ring 7.

The tension spring assembly 9 comprises a tension spring seat 901, the tension spring seat 901 is positioned on the right side of the hole retainer ring 12, the tension spring 902 is sleeved on the outer wall of one end, far away from the hole retainer ring 12, of the tension spring seat 901, the tension spring 902 is arranged to connect the tension spring seat 901 with the tension spring head 903, the tension spring head 903 is sleeved on the inner wall of the right end of the tension spring 902, and a reset spring (tension spring) is installed in the instrument cavity to prevent various mediums in an oil-gas-water well from being corroded and damaged.

Referring to fig. 5, the inner wall of the right end of the tension spring head 903 is in threaded socket joint with the outer wall of the socket head cap screw 8, and the outer wall of the end of the socket head cap screw 8 away from the tension spring head 903 is in threaded socket joint with the inner wall of the socket head cap screw hole 13.

The outer wall of the oil plug 10 is provided with a sealing ring.

Working principle: when the screw thread ring assembly is used, silicone grease is smeared at the excircle of the screw thread ring assembly of the middle joint, the screw thread ring assembly 4 is installed on the middle joint, two O-shaped rings are respectively installed in the sealing ring grooves at the upper end and the lower end of the middle joint, a sealing ring is installed on an oil plug 10, silicone grease is smeared on the sealing ring and the screw thread of the oil plug 10, the oil plug 10 is installed in an oil filling hole of the middle joint, a tension spring assembly 9 which is installed in the front is installed in a middle joint hole from the upper end of the middle joint, then a retainer ring 12 for the hole is installed by using a clamp spring clamp, two X-shaped sealing rings 7 are installed on a piston 6, 222 thread glue is smeared in a threaded hole of the piston, and a piston wrench (injection: auxiliary tool) is inserted into the inner hole groove of the piston, the inner hexagon screw 8 is installed from the inner joint hole by using a long inner hexagon spanner, the piston 6 and the tension spring head 903 are fixed together, then, the silicone grease is smeared at the upper end screw thread and the sealing ring of the middle joint assembled in the last step, the middle joint direction key is aligned with the key groove at the lower end of the shell component, the middle joint is assembled into the shell component of the core component by using a hook spanner, the silicone grease is smeared at the lower end screw thread and the sealing ring of the middle joint, the balance cylinder 3 is installed at the lower end of the middle joint by using the hook spanner, the 222 screw thread glue is smeared in the outer diameter screw hole of the balance cylinder 3, the 2 inner hexagon set screws 5 are installed, 7 disc springs 2 are installed in the lower end hole of the balance cylinder 3, the disc springs 2 face to face and back to back are stacked, the silicone grease is smeared on the screw thread surface of the lower plug 1, the lower plug 1 is installed at the lower end of the piston cylinder by using the hook spanner, the 222 screw thread glue is smeared in the outer diameter screw hole at the lower end of the balance cylinder 3, the 2 inner hexagon set screws 5 are installed, finally, the silicone oil filling vehicle is ready, the DC transducer is installed at about 200, the DC transducer is unloaded, and the transducer is unloaded indirectly, installing an oiling joint, installing a sealing ring on the oiling joint, lifting and placing the upper end of a transducer instrument to be in an inclined state, connecting the oiling joint at the lower end with an oil pipe at the oiling end of a vacuum oiling vehicle, connecting the oiling joint at the upper end with an oil return pipe of the oiling vehicle, opening a vacuum pump to be vacuumized, keeping pressure for a period of time in the vacuum state after the thin-wall part of a transducer shell and the whole oiling system pipeline and the oil tank are forbidden to be knocked, confirming no leakage, opening a circulating pump to be oiling from the lower end of a probe in the vacuum state, checking the residual oil quantity of the oil tank after the oil return pipe returns oil to the oil tank, and ensuring that the residual oil quantity of the oil tank is more than 5 liters for pushing out a balance piston in the next step. The circulation is also to ensure that bubbles generated by the return oil are not sucked into the inlet of the oil pump, and the circulation is performed under vacuum until the instrument is exhausted of air (no bubbles return from the return oil pipe). Closing a vacuum pump, slowly reducing the vacuum degree, avoiding bubbles from entering an instrument from an oil return pipe, circulating for 3 minutes under normal pressure, closing a circulating pump, removing an upper end oil injection joint, installing an oil plug, opening the circulating pump to inject oil from the lower end, observing the position of a piston from a balance cylinder hole, slowly adding oil, closing the circulating pump after a groove at the lower end of the piston reaches the observation hole, using a straight screwdriver to hold the piston, removing the lower end oil injection joint, screwing the oil plug, loosening the straight screwdriver, unscrewing the lower end oil plug to release part of oil, and returning the balance piston to a piston cavity to ensure that the piston is positioned at the middle position of the balance cylinder.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the present utility model, the filling pattern is only for distinguishing the layers, and is not limited in any way.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Special balancer of high-power U-Tem equipment, including lower end cap (1), its characterized in that: the balance cylinder (3) is installed in the left side of lower end cap (1), dish spring (2) has been cup jointed to the inner wall of balance cylinder (3), the one end movable mounting of end cap (1) is kept away from to balance cylinder (3) has screw thread ring subassembly (4), the inner wall screw thread of lower end cap (1) upper and lower both sides has cup jointed interior hexagonal holding screw (5), piston (6) has been cup jointed in the inner wall activity of balance cylinder (3), X type sealing washer (7) that are located inside balance cylinder (3) have been cup jointed to the outer wall of piston (6), hexagon socket screw (8) have been cup jointed in the inner wall screw thread of piston (6) left side, hexagon socket screw (8) have been cup jointed in the outer wall screw thread of piston (6) left extension spring subassembly (9), the upper and lower both sides of balance cylinder (3) all are provided with corresponding oil plug (10) in the position, hexagon socket screw (8) are kept away from in the outer wall of hexagon screw (8) one end, the hole for extension spring subassembly (12) are cup jointed in the inner wall of well joint subassembly (11).

2. The high power U-Tem device specific balancer of claim 1, wherein: the number of the disc springs (2) is seven, and the disc springs (2) are stacked face to face and back to back.

3. The high power U-Tem device specific balancer of claim 1, wherein: an inner hexagonal threaded hole (13) is formed in the left side of the piston (6), an X-shaped sealing groove (14) is formed in the outer wall of the piston (6), and the inner wall of the X-shaped sealing groove (14) is movably clamped with the outer wall of the X-shaped sealing ring (7).

4. The high power U-Tem device specific balancer of claim 1, wherein: the tension spring assembly (9) comprises a tension spring seat (901), the tension spring seat (901) is located on the right side of the hole retainer ring (12), a tension spring (902) is sleeved on the outer wall of one end, far away from the hole retainer ring (12), of the tension spring seat (901), and a tension spring head (903) is sleeved on the inner wall of the right end of the tension spring (902).

5. The high power U-Tem device specific balancer as claimed in claim 4, wherein: the inner wall of extension spring head (903) right-hand member cup joints with the outer wall screw thread of hexagon socket head cap screw (8), and the outer wall of hexagon socket head cap screw (8) keep away from extension spring head (903) one end cup joints with the inner wall screw thread of hexagon socket head cap screw hole (13).

6. The high power U-Tem device specific balancer of claim 1, wherein: the outer wall of the oil plug (10) is provided with a sealing ring.