Movable oil well hot washing device

Abstract

The utility model relates to the technical field of oil well hot washing, and discloses a movable oil well hot washing device which comprises a supporting plate, moving wheels are arranged at the bottom of the supporting plate, a liquid storage tank is fixedly connected to the top of the supporting plate, an anti-overflow cover is slidably connected to the top of the liquid storage tank, and a handle is fixedly connected to the top of the anti-overflow cover. A cleaning assembly is arranged at the top of the supporting plate, a circulating assembly is arranged at the top of the supporting plate, a heating module is arranged on the outer wall of the liquid storage tank, a spiral heat conduction pipe is arranged in the liquid storage tank, and a dismounting assembly is arranged in the liquid storage tank; the dismounting assembly comprises a first flange plate and a second flange plate, and one side wall of each flange plate is fixedly connected to the inner wall of the liquid storage tank. According to the hot washing device, the spiral heat conduction pipe and the dismounting assembly are arranged, so that the effect of guaranteeing continuous and efficient operation of the hot washing device is achieved, the problems that a traditional heat conduction pipe is difficult to dismount and inconvenient to maintain are solved, and the maintainability and the working stability of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of oil well hot washing technology, and in particular to a mobile oil well hot washing device. Background Technology

[0002] During oilfield development, components such as well tubing, pumps, and screens are prone to reduced productivity or even blockage due to the deposition of wax, gum, and mechanical impurities. Traditional wax removal methods, such as chemical wax removal and mechanical scraping, suffer from low efficiency, high cost, or environmental pollution. Hot washing technology has become the mainstream solution due to its high efficiency and environmental friendliness. Mobile hot washing devices are particularly suitable for maintenance operations in dispersed well sites or remote areas due to their flexibility and rapid response capabilities. However, existing devices still have shortcomings in heat exchange efficiency, ease of maintenance, and recycling of cleaning fluid, which restricts their application effectiveness. Therefore, developing a mobile hot washing device that combines high-efficiency heating, easy maintenance, and resource recycling is of great significance for improving oilfield production efficiency and reducing operating costs.

[0003] Existing mobile hot washing devices typically use fixed heating coils or straight tube heat exchangers to heat the cleaning fluid. The heat is conducted to the liquid through the pipe wall, and the liquid is circulated by a pump set to achieve the hot washing operation. The liquid storage tank usually adopts a single-layer insulation structure, and the heating module is welded and fixed to the heat conduction pipe.

[0004] Existing hot washing devices mostly use welded or integrally installed heat pipes, making maintenance or replacement extremely inconvenient. When the heat pipes are damaged by scaling or corrosion due to long-term use, it is necessary to shut down the machine and disassemble the entire heating module, or even cut the welded parts. This is not only time-consuming and labor-intensive, but also affects the equipment's sealing performance. In addition, the traditional heat pipe structure is simple, such as a straight pipe or a few bends, with a limited contact area with the cleaning fluid, resulting in uneven heat transfer and further reducing heating efficiency. This problem directly leads to extended equipment maintenance cycles and frequent operation interruptions, seriously restricting the continuous operation efficiency and economy of the hot washing device. Therefore, a mobile oil well hot washing device is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a mobile oil well hot washing device, which aims to improve the problems of difficult disassembly and inconvenient maintenance of heat conduction pipes in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mobile oil well hot washing device includes a support plate, with casters at the bottom of the support plate, a liquid storage tank fixedly connected to the top of the support plate, an overflow cover slidably connected to the top of the liquid storage tank, a handle fixedly connected to the top of the overflow cover, a cleaning component on the top of the support plate, a circulation component on the top of the support plate, a heating module on the outer wall of the liquid storage tank, a coiled heat conduction pipe inside the liquid storage tank, and a disassembly component inside the liquid storage tank.

[0008] The disassembly assembly includes flange one and flange two. One side wall of flange one is fixedly connected to the inner wall of the liquid storage tank, and the side wall of flange two is fixedly connected to one end of the spiral heat conduction pipe. Both flange one and flange two are threaded with studs. A filter box is fixedly connected to the top of the support plate. A filter frame is slidably connected inside the filter box. A positioning assembly is provided inside the filter box.

[0009] As a further description of the above technical solution:

[0010] The cleaning assembly includes a second water pump, a suction pipe, and an injection pipe, with the bottom of the second water pump fixedly connected to the top of the support plate.

[0011] As a further description of the above technical solution:

[0012] One end of the suction tube is fixedly connected to the inside of the storage tank, the other end of the suction tube is fixedly connected to the second input end of the water pump, and one end of the injection tube is fixedly connected to the second output end of the water pump.

[0013] As a further description of the above technical solution:

[0014] The circulation assembly includes a water pump and a circulation pipe. The bottom of the water pump is fixedly connected to the top of the support plate. One end of the circulation pipe is fixedly connected to the inside of the liquid storage tank, and the other end of the circulation pipe is fixedly connected to the output end of the water pump.

[0015] As a further description of the above technical solution:

[0016] The filter box is fixedly connected to one input end of the water pump, and a suction pipe is fixedly connected inside the filter box.

[0017] As a further description of the above technical solution:

[0018] The positioning component includes a hollow column and a locking column. One end of the hollow column is fixedly connected to the outer wall of the filter box, and the locking column is slidably connected inside the hollow column and engages with the filter frame.

[0019] As a further description of the above technical solution:

[0020] A slider is fixedly connected to the outer wall of the locking post, and the slider is slidably connected inside the hollow post. A sliding disk is slidably connected inside the hollow post.

[0021] As a further description of the above technical solution:

[0022] A spring is fitted on the outer wall of the locking post. One end of the spring is fixedly connected to the side wall of the sliding disc, and the other end of the spring is fixedly connected to the inner wall of the hollow post.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by setting up a spiral heat-conducting pipe and a disassembly assembly, efficient heat exchange and convenient maintenance are achieved. The spiral heat-conducting pipe increases the contact area with the cleaning fluid in the storage tank. Combined with the heating module, it heats the cleaning fluid quickly and evenly, significantly improving the heating efficiency of the cleaning fluid. When the heat-conducting pipe becomes scaled or damaged, the disassembly structure composed of flange one, flange two, and studs allows operators to quickly disassemble the heat-conducting pipe for replacement and maintenance, thereby greatly shortening the equipment maintenance time. This ensures the continuous and efficient operation of the hot washing device, solves the problems of traditional heat-conducting pipes being difficult to disassemble and inconvenient to maintain, and improves the maintainability and operational stability of the equipment.

[0025] 2. In this invention, the synergistic action of the filtration component, positioning component, and circulation component enables the recycling of the cleaning fluid. First, wastewater containing the cleaning fluid enters the filtration tank, where the filter frame intercepts and filters impurities, resulting in initial purification. Simultaneously, the positioning component's locking pins, springs, and other structures ensure stable installation and easy disassembly of the filter frame, facilitating the removal of impurities. Subsequently, the pre-purified cleaning fluid is returned to the storage tank via a circulation component consisting of a water pump and a circulation pipe. This allows for the reuse of the cleaning fluid, reducing waste and discharge, thereby conserving resources and reducing pollution. It solves the problem of severe cleaning fluid waste in traditional hot washing devices, improving the environmental friendliness and economy of the hot washing system. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a mobile oil well hot washing device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the spiral heat-conducting pipe structure of a mobile oil well hot washing device proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4This is a schematic diagram of the filter frame structure of a mobile oil well hot washing device proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0031] Legend:

[0032] 1. Support plate; 2. Casters; 3. Liquid storage tank; 4. Filter box; 5. Water pump one; 6. Water pump two; 7. Overflow cover; 8. Handle; 9. Suction pipe; 10. Injection pipe; 11. Circulation pipe; 12. Sludge suction pipe; 13. Heating module; 14. Coiled heat conduction pipe; 15. Flange one; 16. Flange two; 17. Stud; 18. Filter frame; 19. Hollow column; 20. Locking pin; 21. Spring; 22. Sliding ball; 23. Sliding plate. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-5 This utility model provides an embodiment of a mobile oil well hot washing device, including a support plate 1 for supporting the entire device structure, a moving wheel 2 at the bottom of the support plate 1 for easy movement of the device between well sites, a storage tank 3 fixedly connected to the top of the support plate 1 for storing and heating the cleaning fluid, an overflow cover 7 slidably connected to the top of the storage tank 3 to prevent liquid splashing during hot washing, a handle 8 fixedly connected to the top of the overflow cover 7 for easy opening and closing by the operator, a cleaning component at the top of the support plate 1 for injecting hot washing fluid into the oil well for cleaning operations, a circulation component at the top of the support plate 1 to realize the recovery and recycling of the cleaning fluid, a heating module 13 on the outer wall of the storage tank 3 to provide a heat source for the cleaning fluid, a spiral heat conduction pipe 14 inside the storage tank 3 to increase the heat exchange area and improve the heating efficiency, and a disassembly component inside the storage tank 3 to facilitate the maintenance and replacement of the heat conduction pipe.

[0035] The disassembly assembly includes flange 15 and flange 2 16. Flange 15 is fixedly connected to the inner wall of the liquid storage tank 3 to provide a stable installation base. Flange 2 16 is fixedly connected to one end of the coiled heat conduction pipe 14 to achieve a reliable connection of the heat conduction pipe. Both flange 15 and flange 2 16 are threaded with studs 17 to enable quick disassembly and easy maintenance. A filter box 4 is fixedly connected to the top of the support plate 1 for filtering and recovering the cleaning liquid. A filter frame 18 is slidably connected inside the filter box 4 to intercept solid impurities in the cleaning liquid. A positioning component is provided inside the filter box 4 to ensure that the filter frame 18 is installed firmly and is easy to remove for cleaning.

[0036] Reference Figures 1-5 The cleaning assembly includes a second water pump 6 to provide power for the delivery of cleaning fluid. The bottom of the second water pump 6 is fixedly connected to the top of the support plate 1 to maintain operational stability. One end of the suction pipe 9 is fixedly connected to the inside of the storage tank 3 to draw in the heated cleaning fluid, and the other end of the suction pipe 9 is fixedly connected to the input end of the second water pump 6 to form a liquid delivery channel. One end of the injection pipe 10 is fixedly connected to the output end of the second water pump 6 to deliver the high-pressure cleaning fluid to the oil well. The circulation assembly includes a first water pump 5 to provide power for liquid circulation. The bottom of the first water pump 5 is fixedly connected to the top of the support plate 1 to ensure stable operation. One end of the circulation pipe 11 is fixedly connected to the inside of the storage tank 3 to complete the liquid return, and the other end of the circulation pipe 11 is fixedly connected to the output end of the first water pump 5 to form a circulation loop. The filter box 4 is fixedly connected to the input end of the first water pump 5 to realize the recovery of filtered liquid. The filter box 4 is fixedly connected to a suction pipe 12 to extract wastewater to be filtered. The positioning component includes a hollow column 19 to provide installation guidance for the locking column 20. One end of the hollow column 19 is fixedly connected to the outer wall of the filter box 4 to form a fixed support. The locking column 20 is slidably connected inside the hollow column 19 to achieve the positioning function. The locking column 20 engages with the filter frame 18 to ensure that the filter frame 18 is installed firmly. A slider 22 is fixedly connected to the outer wall of the locking column 20 to reduce frictional resistance. The slider 22 is slidably connected inside the hollow column 19 to ensure smooth movement. A sliding disk 23 is slidably connected inside the hollow column 19 to provide a support surface for the spring 21. The locking column 20 is fitted with a spring 21 to provide elastic restoring force. One end of the spring 21 is fixedly connected to the side wall of the sliding disk 23 to form pressure transmission. The other end of the spring 21 is fixedly connected to the inner wall of the hollow column 19 to establish a fixed connection point.

[0037] Working Principle: During operation, the heating module 13 on the outer wall of the storage tank 3 heats the internal spiral heat conduction pipe 14. Because the spiral heat conduction pipe 14 increases the contact area with the cleaning fluid, heat can be quickly and evenly transferred to the cleaning fluid, completing the heating process. At this time, the cleaning components begin to work. The second water pump 6 is fixed to the top of the support plate 1, and it draws the heated cleaning fluid from inside the storage tank 3 through the suction pipe 9. One end of the suction pipe 9 is connected to the inside of the storage tank 3, and the other end is connected to the input end of the second water pump 6. After being pressurized by the second water pump 6, the cleaning fluid is transported to the oil well for hot washing through the injection pipe 10. The wastewater after hot washing, mixed with impurities, enters the filter box 4 through the suction pipe 12 connected inside the filter box 4. The filter box 4 is fixed to the top of the support plate 1, and the internally sliding filter frame 18 intercepts and filters the impurities in the wastewater, achieving preliminary purification of the wastewater. The stable installation of the filter frame 18 relies on the positioning component. One end of the hollow column 19 is fixed to the outer wall of the filter box 4. The locking column 20 slides inside the hollow column 19 and engages with the filter frame 18. The ball 22 on the outer wall of the locking column 20 slides inside the hollow column 19. At the same time, the spring 21 sleeved on the outer wall of the locking column 20 is connected to the sliding plate 23 at one end and to the inner wall of the hollow column 19 at the other end. The spring 21 assists the locking column 20 in realizing the convenient disassembly and assembly of the filter frame 18, which is convenient for cleaning impurities. The purified cleaning liquid is recycled by the circulation component. The water pump 5 is fixed on the top of the support plate 1. Its input end is connected to the inside of the filter box 4, and its output end is connected to the circulation pipe 11. The other end of the circulation pipe 11 is connected to the inside of the storage tank 3. Through the action of the water pump 5, the cleaning liquid returns to the storage tank 3 through the circulation pipe 11, realizing recycling. When scale or damage occurs on the spiral heat pipe 14, it can be quickly disassembled and replaced for maintenance using the disassembly assembly consisting of flange 15, flange 2 16, and stud 17, ensuring the continuous and efficient operation of the device.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile oil well hot washing device, comprising a support plate (1), characterized in that: The support plate (1) is provided with a moving wheel (2) at the bottom, and a liquid storage tank (3) is fixedly connected to the top of the support plate (1). An overflow cover (7) is slidably connected to the top of the liquid storage tank (3). A handle (8) is fixedly connected to the top of the overflow cover (7). A cleaning component is provided on the top of the support plate (1). A circulation component is provided on the top of the support plate (1). A heating module (13) is provided on the outer wall of the liquid storage tank (3). A spiral heat conduction pipe (14) is provided inside the liquid storage tank (3). A disassembly component is provided inside the liquid storage tank (3). The disassembly assembly includes flange one (15) and flange two (16). The side wall of flange one (15) is fixedly connected to the inner wall of the liquid storage tank (3), and the side wall of flange two (16) is fixedly connected to one end of the coiled heat conduction pipe (14). Both flange one (15) and flange two (16) are threadedly connected with studs (17). The top of the support plate (1) is fixedly connected to a filter box (4). The filter box (4) is slidably connected to a filter frame (18). The filter box (4) is equipped with a positioning assembly.

2. The mobile oil well hot washing device according to claim 1, characterized in that: The cleaning assembly includes a second water pump (6), a suction pipe (9), and an injection pipe (10). The bottom of the second water pump (6) is fixedly connected to the top of the support plate (1).

3. The mobile oil well hot washing device according to claim 2, characterized in that: One end of the suction tube (9) is fixedly connected to the inside of the storage tank (3), the other end of the suction tube (9) is fixedly connected to the input end of the second water pump (6), and one end of the injection tube (10) is fixedly connected to the output end of the second water pump (6).

4. A mobile oil well hot washing device according to claim 1, characterized in that: The circulation assembly includes a water pump (5) and a circulation pipe (11). The bottom of the water pump (5) is fixedly connected to the top of the support plate (1). One end of the circulation pipe (11) is fixedly connected to the inside of the liquid storage tank (3), and the other end of the circulation pipe (11) is fixedly connected to the output end of the water pump (5).

5. A mobile oil well hot washing device according to claim 4, characterized in that: The filter box (4) is fixedly connected to the input end of the water pump (5), and a suction pipe (12) is fixedly connected inside the filter box (4).

6. A mobile oil well hot washing device according to claim 1, characterized in that: The positioning component includes a hollow column (19) and a locking column (20). One end of the hollow column (19) is fixedly connected to the outer wall of the filter box (4), and the locking column (20) is slidably connected inside the hollow column (19). The locking column (20) engages with the filter frame (18).

7. A mobile oil well hot washing device according to claim 6, characterized in that: A slider (22) is fixedly connected to the outer wall of the locking post (20), and the slider (22) is slidably connected inside the hollow column (19). A sliding disk (23) is slidably connected inside the hollow column (19).

8. A mobile oil well hot washing device according to claim 7, characterized in that: A spring (21) is fitted on the outer wall of the locking post (20). One end of the spring (21) is fixedly connected to the side wall of the sliding disk (23), and the other end of the spring (21) is fixedly connected to the inner wall of the hollow column (19).

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