Quick-release grounding device for use in mobile steam injection boilers in oil fields

Abstract

This utility model discloses a quick-disassembly and grounding device for mobile steam injection boilers in oil fields, including a grounding wire and a grounding mechanism. The grounding wire connects the boiler body to the grounding mechanism, and the grounding mechanism includes a grounding rod with a repeatedly switchable anchoring mechanism inside. The repeatedly switchable anchoring mechanism in this utility model enables reliable grounding of the equipment and allows for quick disassembly and assembly, facilitating the movement and transport of mobile steam injection boilers in oil fields.

Description

Technical Field

[0001] This utility model relates to the field of oilfield equipment technology, specifically to a quick-disassembly and grounding device for mobile steam injection boilers in oilfields. Background Technology

[0002] Steam injection boilers are equipment used in oilfield development, mainly for heat treatment, steam-driven oil recovery and fracturing operations. They use oilfield waste gas as fuel and oilfield atmosphere and groundwater as heat transfer medium. High-temperature and high-pressure steam is generated through combustion and injected into oil wells to improve the oil recovery rate.

[0003] The grounding device for mobile steam injection boilers in oil fields can ensure reliable grounding of the equipment, thereby fully protecting personal and equipment safety, improving equipment operating rate, and reducing the labor intensity of employees. Some existing grounding devices for mobile steam injection boilers in oil fields are usually fixed by welding or other methods, which is inconvenient for quick installation and disassembly, and makes it difficult to move the steam injection boiler to another location.

[0004] Announcement No. CN203910989U discloses an electrical grounding stake for an oil pumping unit, including a wedge-shaped top plate, a wire connecting ring, a grounding stake, a one-way anchor block, and a pin. The wedge-shaped top plate is installed at the top of the grounding stake, the wire connecting ring is fixed to the upper part of the grounding stake, and the one-way anchor block is hinged to the side of the grounding stake by the pin. The one-way anchor block can rotate around the pin. The lower end of the grounding stake is pen-tip shaped. When inserted into the ground, the one-way anchor block retracts and can be smoothly inserted into the ground along with the grounding stake. If the grounding stake needs to be pulled out upwards, the one-way anchor block rotates around the pin and opens outwards, making it impossible to pull out of the soil.

[0005] Announcement No. CN213989244U discloses a grounding safety protection device for power equipment, including a grounding rod. A sleeve is fitted on the top of the outer wall of the grounding rod, and an annular plate is inserted and connected to the top of the sleeve. The annular plate is fixedly installed on the top of the protective shell. Anti-corrosion layers are provided on both sides of the inner wall of the protective shell, and insert plates are hinged on both sides of the protective shell. Through the insert plates, the barrier plate, and the second spring, the contact area and resistance between the grounding rod and the ground are increased, thereby preventing the grounding rod from being pulled out.

[0006] Announcement No.: CN210182597U discloses a resistance-reducing grounding device for thermal power plants, including a protective well, a grounding structure, and a material conveying structure. The protective well is fixedly buried in the ground. The grounding structure includes a grounding rod, a metal grounding body, and a grounding detection lead. A grounding rod is fixedly installed in the protective well. One end of the grounding rod penetrates the protective well and extends into the soil. A metal grounding body is fixedly installed at the penetrating end of the grounding rod. A grounding detection lead is fixedly installed on the side of the grounding rod at one end of the protective well.

[0007] The aforementioned existing technology is a long-term grounding pile, which is not suitable for use in mobile steam injection boilers in oil fields that need to be moved.

[0008] In summary, the technical solutions, technical problems to be solved, and beneficial effects of the above-disclosed technologies are all different from those of this utility model. For more technical features, technical problems to be solved, and beneficial effects of this utility model, the above-disclosed technical documents do not provide any technical inspiration. Utility Model Content

[0009] In view of the above-mentioned defects in the existing technology, the purpose of this utility model is to provide a quick-disassembly and grounding device for use in mobile steam injection boilers in oil fields.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A quick-release grounding device for mobile steam injection boilers in oil fields includes a grounding wire and a grounding mechanism. The grounding wire is used to connect the steam injection boiler body to the grounding mechanism. The grounding mechanism includes a grounding rod, and the grounding rod is equipped with an anchor locking mechanism that can be repeatedly opened and closed.

[0012] Furthermore, the repeatedly switchable anchor lock mechanism includes a linear movement mechanism, a sliding plate, and barbed needles;

[0013] Specifically, the grounding rod is provided with a sliding cavity inside, and the cavity wall of the sliding cavity is provided with at least two upwardly inclined guide holes, and barbed needles are slidably arranged in the guide holes;

[0014] Specifically, the inner wall of the sliding cavity is provided with a limiting track below the guide hole, the outer wall of the sliding plate is provided with a limiting block, the limiting block is slidably disposed in the limiting track, the tip of the barb needle points upward, and the tail of the barb needle slides in contact with the sliding plate.

[0015] Specifically, the linear motion mechanism is connected to the sliding plate via a grounding rod.

[0016] Furthermore, the linear motion mechanism includes a lead screw that passes through the upper end of the grounding rod, passes through a sliding plate, is threadedly connected to the sliding plate, and is rotatably connected to the grounding rod.

[0017] Furthermore, the bottom end of the grounding rod is a conical head; the grounding rod is a brass column; a positioning ring is provided on the outer wall of the upper end of the grounding rod; and a knob is provided at the top of the lead screw.

[0018] Furthermore, at least two guide holes are evenly distributed along the circumference of the grounding rod; the surface of the sliding plate is provided with radial grooves corresponding to the guide holes, and the tail of the barbed needle is slidably inserted into the radial grooves.

[0019] Furthermore, the grounding rod is divided into an upper rod body and a lower rod body at the lower end of the limiting track, the lower end of the limiting track is open, and the upper rod body and the lower rod body are connected by threads.

[0020] Furthermore, it also includes a grounding wire winding mechanism, in which a grounding wire is wound, and the grounding wire is provided with a fixed end and a movable end;

[0021] Specifically, the fixed end of the grounding wire is provided with a second connecting lug, the outer wall of the steam injection boiler body is provided with a first connecting lug, and the second connecting lug of the grounding wire is connected to the first connecting lug of the steam injection boiler body by fasteners;

[0022] Specifically, the movable end of the grounding wire is provided with a third connecting lug, the top end of the grounding rod is fixedly provided with a threaded rod, the third connecting lug is sleeved on the threaded rod, and the threaded rod is threadedly connected to a second nut above the third connecting lug, the second nut locking the third connecting lug.

[0023] Furthermore, the lead screw passes through the threaded rod, and the threaded rod and the lead screw are concentric.

[0024] Furthermore, the grounding wire take-up and take-down mechanism includes a fixed frame, a rotating roller, and a crank handle;

[0025] Specifically, the fixed frame is a U-shaped frame, the rotating roller is rotatably mounted inside the fixed frame, and a crank handle is fixedly installed at one end of the rotating roller;

[0026] Specifically, the grounding wire is wound around the rotating roller, and a slot is provided at the end of the rotating roller away from the crank handle. The grounding wire is partially locked in the slot, and the second connecting lug is close to the slot.

[0027] Furthermore, the fixing frame has a screw hole on the end face near the crank handle, and a limiting bolt is threaded into the crank handle, which can be connected to the screw hole.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] In this invention, after the grounding rod is inserted, the sliding plate can drive the barbed needle to rise and extend into the soil, which can help fix the grounding rod, making it difficult to pull out. The second connecting lug at one end of the grounding wire is installed on the first connecting lug on the steam injection boiler body through the fastening bolt and the first nut, and the third connecting lug at the other end of the grounding wire is sleeved on the threaded rod at the top of the grounding rod and the second nut is tightened for fixation, so as to achieve reliable grounding of the equipment and quick disassembly and assembly, which facilitates the movement and transportation of the oilfield gas mobile steam injection boiler equipment. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0032] Figure 3 This is a schematic diagram of the main structure of the steam injection boiler in this utility model;

[0033] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B;

[0034] Figure 5 This is a schematic diagram of the connection between the grounding wire and the grounding rod in this utility model;

[0035] Figure 6 This is a schematic diagram of the unfolded structure of the barbed needle of the grounding rod in this utility model;

[0036] Figure 7 This is a schematic diagram of the barbed needle retraction structure of the grounding rod in this utility model;

[0037] Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point C;

[0038] Figure 9 This is a schematic diagram of the grounding wire winding in this utility model;

[0039] Figure 10 This is a schematic diagram of the grounding rod in this utility model.

[0040] In the diagram: 1. Base; 2. Steam injection boiler body; 3. Fixing frame; 4. Grounding wire; 5. Grounding rod; 6. Rotating roller; 7. Handle; 8. Limiting bolt; 9. Screw hole; 10. First connecting lug; 11. Second connecting lug; 12. Fastening bolt; 13. First nut; 14. Threaded rod; 15. Second nut; 16. Barbed needle; 17. Lead screw; 18. Knob; 19. Sliding plate; 20. Guide hole; 21. Third connecting lug; 22. Limiting rail; 23. Positioning ring. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Example 1:

[0043] Please see Figures 1 to 10The present invention provides a quick-assembly and disassembly grounding device for a mobile steam injection boiler in an oil field, comprising a grounding wire winding mechanism and a grounding mechanism. The grounding wire winding mechanism winds a grounding wire 4. The fixed end of the grounding wire 4 is used to connect to the steam injection boiler body 2, and the movable end of the grounding wire 4 is connected to the grounding mechanism.

[0044] Furthermore, the grounding mechanism includes a grounding rod 5, and an anchoring mechanism that can be repeatedly opened and closed is provided inside the grounding rod 5. The repeatedly open and closed anchoring mechanism includes a lead screw 17, a sliding plate 19, and a barbed needle 16. A sliding cavity is provided inside the grounding rod 5, and the cavity wall of the sliding cavity is provided with at least two upwardly inclined guide holes 20. The barbed needle 16 is slidably arranged in the guide holes 20, and the barbed needle 16 can only slide and extend along the guide holes 20. A limiting track 22 is provided on the inner wall of the sliding cavity below the guide holes 20. A limiting block is provided on the outer wall of the sliding plate 19, and the limiting block is slidably arranged in the limiting track 22. The tip of the barbed needle 16 points upward, and the tail of the barbed needle 16 slides in contact with the sliding plate 19. The lead screw 17 passes through the upper end of the grounding rod 5 and passes through the sliding plate 19. The lead screw 17 is threadedly connected to the sliding plate 19, and the lead screw 17 is rotatably connected to the grounding rod 5 through a bearing or bushing.

[0045] Specifically, the bottom end of the grounding rod 5 is a conical head. First, the grounding rod 5 is driven into the unhardened soil layer at the outer edge of the site. The grounding rod 5 is made of brass, which has stronger conductivity, larger grounding area, and deeper penetration depth than traditional galvanized pipe grounding wires. After the grounding rod 5 is inserted, the screw 17 is rotated, causing the sliding plate 19 to drive the barbed needle 16 to rise and extend into the soil, which can help fix the grounding rod 5, making it difficult to pull out and achieving reliable grounding of the equipment. The grounding rod 5 is inserted into the unhardened soil layer at the edge of the site, avoiding the low conductivity construction waste layer on the surface of the well site, ensuring that the grounding resistance of the boiler meets the national standard.

[0046] Specifically, the surface of the sliding plate 19 is provided with a radial groove corresponding to the guide hole 20, and the tail of the barb 16 is slidably inserted into the radial groove to restrict the position of the barb 16 and reduce the wear resistance of the barb 16.

[0047] Specifically, a positioning ring 23 is provided on the outer wall of the upper end of the grounding rod 5.

[0048] Specifically, at least two guide holes 20 are evenly distributed around the grounding rod 5.

[0049] Specifically, at least two limiting rails 22 are provided and are evenly distributed along the circumference of the grounding rod 5.

[0050] Specifically, a knob 18 is provided at the top of the lead screw 17 to facilitate tool clamping, and the knob 18 is used to drive the lead screw 17 to rotate.

[0051] Specifically, the grounding rod 5 is divided into an upper rod body 51 and a lower rod body 52 at the lower end of the limiting rail 22. The lower end of the limiting rail 22 is open to facilitate the installation of the sliding plate 19. The upper rod body 51 and the lower rod body 52 are connected by threads. After the tapered head at the bottom of the lower rod body 52 is worn and it is difficult to penetrate the ground, only the lower rod body 52 can be replaced.

[0052] Furthermore, a second connecting lug is provided at the fixed end of the grounding wire 4, and a first connecting lug 10 is welded to the outer wall of the steam injection boiler body 2. The second connecting lug 11 of the grounding wire 4 is connected to the first connecting lug 10 of the steam injection boiler body 2 through a fastening bolt 12 and a first nut 13. A third connecting lug 21 is provided at the movable end of the grounding wire 4, and a threaded rod 14 is fixedly provided at the top end of the grounding rod. The third connecting lug 21 is sleeved on the threaded rod 14, and a second nut 15 is threadedly connected to the threaded rod 14 above the third connecting lug 21. The second nut 15 locks the third connecting lug 21.

[0053] Specifically, the lead screw 17 passes through the threaded rod 14, and the threaded rod 14 and the lead screw 17 are concentric.

[0054] Furthermore, the grounding wire winding and unwinding mechanism includes a fixed frame 3, a rotating roller 6, and a crank handle 7. The fixed frame 3 is a U-shaped frame. The rotating roller 6 is rotatably mounted inside the fixed frame 3 via bearings. One end of the rotating roller 6 is fixedly mounted with the crank handle 7, which is located outside the fixed frame 3. The crank handle 7 drives the rotating roller 6 to rotate. The grounding wire 4 is wound around the rotating roller 6. A slot is provided at the end of the rotating roller 6 away from the crank handle 7. The slot corresponds to the fixed frame 3. The grounding wire 4 is partially locked in the slot, and the second connecting ear 11 is close to the slot. The rotating roller 6 is used to wind and unwind the grounding wire 4, facilitating the storage of the grounding wire 4. The end of the grounding wire 4 with the second connecting ear 11 is locked inside the rotating roller 6 and can rotate along with the rotating roller 6. The second connecting ear 11 can only be installed after the grounding wire 4 has been unwound. When it is necessary to wind the grounding wire 4, the second connecting ear 11 must first be removed before winding.

[0055] Specifically, the fixed frame 3 is provided with a screw hole 9 on the end face near the crank handle 7, and a limit bolt 8 is threadedly inserted on the crank handle 7. The limit bolt 8 can be threadedly connected to the screw hole 9. After the grounding wire 4 is retracted, the limit bolt 8 is screwed into the crank handle 7 and into the corresponding screw hole 9 to limit the crank handle 7 and the rotating roller 6.

[0056] Specifically, at least two screw holes 9 are provided and are evenly distributed along the circumference of the rotating roller 6.

[0057] Furthermore, it also includes a base 1, on which the steam injection boiler body 2 is fixedly installed by bolts, and a fixing frame 3 is fixedly installed on the base 1 by bolts.

[0058] Specifically, the steam injection boiler body 2 is an oilfield mobile steam injection boiler.

[0059] Example 2:

[0060] Based on Example 1, this example provides a method for using a quick-release grounding device applied to an oilfield mobile steam injection boiler, including the following steps:

[0061] First, the grounding rod 5 is driven into the unhardened soil layer at the outer edge of the site. After the grounding rod 5 is inserted, the knob 18 is used to drive the lead screw 17 to rotate. The lead screw 17 drives the sliding plate 19 to slide and rise and fall inside the grounding rod 5. The sliding plate 19 drives the barbed needle 16 to extend along the guide hole 20 and insert into the soil, which can help fix the grounding rod 5, making it difficult to pull out the grounding rod 5.

[0062] Next, the second connecting lug 11 of the grounding wire 4 is installed onto the first connecting lug 10 on the steam injection boiler body 2 using the fastening bolt 12 and the first nut 13. Then, the grounding wire 4 is pulled to put the third connecting lug 21 of the grounding wire 4 onto the threaded rod 14 at the top of the grounding rod 5, and the second nut 15 is tightened to fix it, thereby achieving reliable grounding of the equipment. The grounding rod 5 is inserted into the non-hardened soil layer at the edge of the site, avoiding the construction waste layer with low conductivity on the surface of the well site, ensuring that the grounding resistance of the boiler meets the national standard.

[0063] When the steam injection boiler body 2 needs to be moved, firstly, remove the second connecting lug 11 and the third connecting lug 21 at both ends of the grounding wire 4 from the steam injection boiler body 2 and the grounding rod 5 respectively. Then, use the crank handle 7 to drive the rotating roller 6 to rotate. The rotating roller 6 will wind up the grounding wire 4. After the grounding wire 4 is wound up, screw the limiting bolt 8 into the crank handle 7 and into the corresponding screw hole 9 to limit the crank handle 7 and the rotating roller 6. Rotate the knob 18 in the opposite direction to retract the barbed needle 16, pull out the grounding rod 5, and proceed to the next work site.

[0064] All components not discussed in detail in this application, as well as the connection methods of these components, are well-known technologies in this field. They can be directly applied and will not be elaborated further.

[0065] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0066] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0067] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-assembly and disassembly grounding device for mobile steam injection boilers in oil fields, comprising a grounding wire and a grounding mechanism, wherein the grounding wire is used to connect the steam injection boiler body to the grounding mechanism, characterized in that, The grounding mechanism includes a grounding rod, and the grounding rod is provided with an anchor locking mechanism that can be repeatedly opened and closed; The repeatedly switchable anchor lock mechanism includes a linear movement mechanism, a sliding plate, and barbed needles; The grounding rod is provided with a sliding cavity inside, and the cavity wall of the sliding cavity is provided with at least two upwardly inclined guide holes, and barbed needles are slidably arranged in the guide holes; The inner wall of the sliding cavity is provided with a limiting track below the guide hole, and the outer wall of the sliding plate is provided with a limiting block. The limiting block is slidably disposed in the limiting track. The tip of the barb needle points upward, and the tail of the barb needle slides in contact with the sliding plate. The linear motion mechanism is connected to the sliding plate via a grounding rod.

2. The quick detachable grounding device for steam injection boiler used in oil field activities according to claim 1, characterized in that, The linear motion mechanism includes a lead screw that passes through the upper end of the grounding rod, passes through a sliding plate, is threadedly connected to the sliding plate, and is rotatably connected to the grounding rod.

3. The quick detachable grounding device for steam injection boiler used in oil field activities according to claim 2, characterized in that, The bottom end of the grounding rod is a conical head; the grounding rod is a brass column; a positioning ring is provided on the outer wall of the upper end of the grounding rod; and a knob is provided at the top of the lead screw.

4. The quick detachable grounding device for steam injection boiler used in oil field activities according to claim 1, characterized in that, At least two guide holes are evenly distributed along the circumference of the grounding rod; the surface of the sliding plate is provided with radial grooves corresponding to the guide holes, and the tail of the barbed needle is slidably inserted into the radial grooves.

5. The quick detachable grounding device for steam injection boiler used in oil field activities according to claim 1, wherein, The grounding rod is divided into an upper rod body and a lower rod body at the lower end of the limiting rail. The lower end of the limiting rail is open, and the upper rod body and the lower rod body are connected by threads.

6. The quick detachable grounding device for steam injection boiler used in oil field activities according to claim 2, wherein, It also includes a grounding wire winding mechanism, in which a grounding wire is wound, and the grounding wire is provided with a fixed end and a movable end; The grounding wire is provided with a second connecting lug at its fixed end, and a first connecting lug is provided on the outer wall of the steam injection boiler body. The second connecting lug of the grounding wire is connected to the first connecting lug of the steam injection boiler body by fasteners. The movable end of the grounding wire is provided with a third connecting lug, and the top end of the grounding rod is fixedly provided with a threaded rod. The third connecting lug is sleeved on the threaded rod, and the threaded rod is threadedly connected to a second nut above the third connecting lug. The second nut locks the third connecting lug.

7. The quick detachable grounding device for steam injection boiler used in oil field activities according to claim 6, characterized in that, The lead screw passes through the threaded rod, and the threaded rod and the lead screw are concentric.

8. The quick detachable grounding device for steam injection boiler used in oil field activities according to claim 6, wherein, The grounding wire take-up and take-down mechanism includes a fixed frame, a rotating roller, and a crank handle; The fixed frame is a U-shaped frame, and the rotating roller is rotatably mounted inside the fixed frame. A crank handle is fixedly installed at one end of the rotating roller. The grounding wire is wound around the rotating roller, and a slot is provided at the end of the rotating roller away from the crank handle. The grounding wire is partially locked in the slot, and the second connecting lug is close to the slot.

9. The quick detachable grounding device for steam injection boiler used in oil field activities according to claim 8, characterized in that, The fixed frame has a screw hole on the end face near the crank handle, and a limit bolt is threaded into the crank handle, which can be connected to the screw hole.

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