Shaft anti-corrosion treatment device

Abstract

The utility model belongs to the technical field of shaft corrosion prevention, and discloses a shaft corrosion prevention treatment device which comprises a supporting frame, a frame is fixedly connected to the top end of the supporting frame, an adjusting lead screw is spirally connected into the top end of the frame, a sliding block is arranged on the outer side of the adjusting lead screw in a sleeved mode, and a connecting rope is arranged in the front end of the sliding block in a penetrating mode. The bottom end of the connecting rope is fixedly connected with a connecting ball, the outer side of the top end of the connecting ball abuts against a locking ring, the outer side of the locking ring is sleeved with a lantern ring, an oil pump is arranged in the lantern ring in a sleeved mode, and the outer side of the bottom end of the oil pump is sleeved with a spraying head. And when anti-corrosion glue is sprayed to a shaft, spraying cannot be completed at a time, spraying needs to be conducted in a small amount and multiple times, vertical movement needs to be conducted in the spraying process, and the problem that spraying is not uniform is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of wellbore anti-corrosion, in particular to a wellbore anti-corrosion treatment device. Background Art

[0002] A wellbore refers to an up and down transportation channel for personnel, equipment, and materials, as well as a transportation channel for various fluids (such as oil, natural gas, mine water, etc.) in underground projects (such as mines, oil wells, etc.). During long-term use, corrosion occurs inside the wellbore. Maintenance personnel use solid polyphosphosilicate as the main agent and active agents as the auxiliary agent. After the reaction, soluble polycalcium magnesium phosphate and insoluble polycalcium iron phosphate anti-corrosion film are formed on the metal or non-metal surface, thereby achieving the purpose of corrosion and scale prevention, and reacting with the hardness component to form a soluble complex, turning temporary hardness into permanent hardness, thereby preventing the formation of scale and having a good anti-corrosion and scale inhibition effect.

[0003] At the same time, the patent application number 201721809378.1 discloses a pipeline inner pipe anti-corrosion coating spraying device, including a driving wheel mechanism, an auxiliary wheel mechanism, a cleaning structure and a spraying mechanism. The cleaning structure, driving wheel mechanism, auxiliary wheel mechanism and spraying mechanism are connected in sequence. The driving wheel mechanism and the auxiliary wheel mechanism each include a first fixed disk and a plurality of wheel groups. The plurality of wheel groups are arranged on the first fixed disk. The wheel group includes a fixed rod, a roller, a first pull rod, a second pull rod and a spring. The structural design of the utility model is reasonable. The device is provided with a cleaning device at the front end of the spraying. The cleaning block cleans the pipe wall and absorbs the dust in the pipe through a negative pressure dust suction device. The device can respectively articulate the extended outer diameter of the spray gun and the cleaning block through the first fixed rod and the second fixed pipe. At the same time, under the action of the spring, the wheel assembly can be suitable for fitting with the inner wall surface of multiple pipe diameters.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned pipeline inner pipe anti-corrosion coating spraying device requires manual entry into the wellbore for spraying, which affects the health of construction workers when performing long-term spraying operations underground. In addition, when spraying anti-corrosion glue on the wellbore, it is impossible to complete the spraying in one go, and it is necessary to spray in small amounts multiple times. In addition, during the spraying process, it is necessary to move up and down to avoid uneven spraying. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the utility model provides a wellbore anti-corrosion treatment device, which has a spraying device with the function of increasing and decreasing movement on the outside of the wellbore. When spraying the inner wall of the wellbore, the oil pump connected by the connecting rope can be raised and lowered by adjusting the screw rod to drive the sliding block. The spray head has the advantage of being able to spray the anti-corrosion material on the inner wall of the wellbore during the lifting process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wellbore anti-corrosion treatment device, comprising a support frame, the top of the support frame is fixedly connected to a frame, the top of the frame is spirally connected to an adjusting screw, the outer side of the adjusting screw is sleeved with a sliding block, a connecting rope is provided through the front end of the sliding block, the bottom end of the connecting rope is fixedly connected to a connecting ball, the top outer side of the connecting ball is tightly pressed with a locking ring, the outer side of the locking ring is sleeved with a collar, the interior of the collar is sleeved with an oil pump, and the bottom outer side of the oil pump is sleeved with an injection head.

[0007] Preferably, a connecting pipe is fixedly connected to the outer side of the collar, the other end of the connecting pipe is fixedly connected to a stirring tank, and the top of the stirring tank is fixedly connected to a feed port.

[0008] Preferably, a motor is provided through the top of the stirring tank, an output end of the motor is rotatably connected to a stirring rod, and the outer side of the stirring rod is rotatably provided inside the stirring tank.

[0009] Preferably, a rotating rod is sleeved on the outer side of the output end of the motor, a scraper is fixedly connected to the bottom end of the rotating rod, and the outer side of the scraper is fitted on the inner wall of the mixing tank.

[0010] Preferably, the bottom end of the support frame is fixedly connected to a fixing seat, and the interior of the fixing seat is rotatably connected to a support arm.

[0011] Preferably, a handle is fixedly connected to the top of the support frame, and two groups of handles are provided.

[0012] Preferably, a discharge trough is provided on the outer side of the injection head, and the discharge trough of the injection head is provided in several groups.

[0013] Preferably, the oil pump includes a rotating disk rotatably arranged at both ends in the middle, a flexible anode is fixedly arranged on the inner wall of the rotating disk at the bottom, and a mesh enclosure is provided on the inner wall of the rotating disk at the top, and a solid descaling agent is fixedly arranged inside the mesh enclosure.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model adds a support frame at the top of the wellbore to serve as a support when spraying inside the wellbore, and sprays a solid scale inhibitor inside the wellbore to form a soluble polycalcium magnesium phosphate and an insoluble polycalcium iron phosphate anticorrosive film on the metal or non-metal surface after the reaction, thereby achieving the purpose of corrosion and scale prevention, and reacting with the hardness component to form a soluble complex, which changes the temporary hardness into permanent hardness, thereby preventing the formation of scale and having a good corrosion and scale prevention effect. The sliding block can be slid up and down by adjusting the rotation of the screw rod inside the frame. During the up and down sliding process, the oil pump can be lifted up by the connecting rope. The oil pump sprays the anticorrosive material to the inner wall of the wellbore through the spray head. The screw rod is rotated to spray repeatedly up and down inside the wellbore. In this anticorrosion work, labor intensity is reduced, maintenance is unnecessary, and management is convenient.

[0016] 2. The utility model adds a stirring device for anti-corrosion materials on the top of the support frame. During the stirring process, the materials can be mixed more evenly, and a scraper is added on the outside of the motor output end. The scraper scrapes the inner wall of the stirring tank to reduce material waste. After the stirring is completed, the material is sent to the inside of the oil pump through the connecting pipe, and the chemical material is sprayed on the inner wall of the wellbore through the oil pump, which prevents oil layer pollution, extends the pump inspection cycle, and saves operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the oil pump structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the support arm structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the support structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the injection head of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the stirring tank of the utility model.

[0023] In the figure: 1. Support frame; 2. Frame; 3. Adjusting screw; 4. Sliding block; 5. Connecting rope; 6. Connecting ball; 7. Ring; 8. Injection head; 9. Oil pump; 10. Handle; 11. Connecting pipe; 12. Mixing tank; 13. Motor; 14. Feed inlet; 15. Rotating rod; 16. Scraper; 17. Stirring rod; 18. Fixed seat; 19. Support arm; 20. Locking ring; 21. Rotating disk; 22. Flexible anode; 23. Mesh enclosure; 24. Solid descaling agent. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1 to 6 When the cam 2 is in the air, the cam 2 is moved upwards and downwards, and the cam 2 is moved downwards and downwards, so that the cam 2 is moved upwards and downwards, thereby the cam 2 is moved upwards and downwards, thereby the cam 2 is moved upwards and downwards, thereby the cam 2 is moved upwards and downwards, and ...

[0026] Specifically, the outer side of the collar 7 is fixedly connected to a connecting pipe 11, which is used to transport materials. The other end of the connecting pipe 11 is fixedly connected to a stirring tank 12, and the top of the stirring tank 12 is fixedly connected to a feed port 14, which is used to add materials.

[0027] Furthermore, a motor 13 is provided through the top of the stirring tank 12 , and an output end of the motor 13 is rotatably connected to a stirring rod 17 , and an outer side of the stirring rod 17 is rotatably provided inside the stirring tank 12 .

[0028] Furthermore, a rotating rod 15 is sleeved on the outside of the output end of the motor 13, and a scraper 16 is fixedly connected to the bottom end of the rotating rod 15. The outer side of the scraper 16 is fitted on the inner wall of the mixing tank 12 to scrape out the material attached to the inner wall of the mixing tank 12.

[0029] It is worth noting that the bottom end of the support frame 1 is fixedly connected to a fixing seat 18, and the interior of the fixing seat 18 is rotatably connected to a support arm 19. By rotating the support arm 19, the top end of the support frame 1 can be lifted.

[0030] It is worth noting that a handle 10 is fixedly connected to the top of the support frame 1. There are two groups of handles 10. The handles 10 are used to lift the support frame 1. After the support frame 1 is lifted, the spray head 8 is lifted.

[0031] It is worth mentioning that a discharge trough is provided on the outside of the injection head 8, which is used to spray chemical materials onto the inner wall of the wellbore. After the reaction, soluble polycalcium magnesium phosphate and insoluble polycalcium iron phosphate anti-corrosion film are formed on the metal or non-metal surface, thereby achieving the purpose of anti-corrosion and anti-scaling, and reacting with the hardness component to form a soluble complex, turning the temporary hardness into permanent hardness, thereby preventing the formation of scale and having a good anti-corrosion and anti-scaling effect.

[0032] It is worth mentioning that the oil pump 9 includes a rotating disk 21 rotatably arranged at both ends in the middle, a flexible anode 22 is fixedly arranged on the inner wall of the lower rotating disk 21, and a mesh enclosure 23 is provided on the inner wall of the upper rotating disk 21, and a solid descaling agent 24 is fixedly arranged inside the mesh enclosure 23.

[0033] Among them, the motor 13 and the scraper 16 are prior art and will not be described in detail. At the same time, the present invention also includes a power supply, a controller and a switch, which are not the main technical points of the present patent and will not be described in detail. The "front, back, left and right" perspectives of the present device are as follows: Figure 1 The direction shown in the figure is the reference.

[0034] Working principle:

[0035] First, the staff pours the chemical material into the mixing tank 12 through the feed port 14, and the motor 13 drives the stirring rod 17 inside the mixing tank 12 to rotate, and the stirring rod 17 mixes the materials. Then, during the rotation process, the output end of the motor 13 drives the rotating rod 15 to rotate, and the rotating rod 15 drives the scraper 16 to rotate, and the scraper 16 scrapes the inner wall of the mixing tank 12. Then, the mixed material flows to the inside of the oil pump 9 through the connecting pipe 11. The support frame 1 is placed on the top of the wellbore, and the adjusting screw 3 inside the top of the frame 2 is rotated counterclockwise. After the adjusting screw 3 rotates clockwise, it drives the sliding block 4 to slide downward, and the sliding block 4 drives the connecting ball 6 to slide downward through the connecting rope 5. The ball 6 drives the collar 7 outside the lock ring 20 to slide downward. During the sliding process, the oil pump 9 drives the injection head 8 to slide outward. During the sliding process, the injection head 8 injects the corrosion-resistant material to the outside of the wellbore, and then the chemical material adheres to the inner wall of the wellbore. Na2〔Na4(PO3)6〕+CaXNa2〔Na2Ca(PO3)6〕+Na2X, Na2〔Na2Ca(PO3)6〕+CaXNa2〔Ca2(PO3)6〕+Na2X soluble complex Fe(OH)2+Na2〔Ca2(PO3)6〕FeCa2(PO3)6+NaOH The reaction of hardness components such as insoluble membrane magnesium ions and GY-1 solid scale inhibitor is the same as above;

[0036] The addition of modified substances to the built-in sacrificial anode can make the anode dissolve evenly in the wellbore, so that its secondary reactants quickly form a protective film on the surface of the pipe and rod, and the formation of the film plays an anti-corrosion role;

[0037] Anodic process: Fe→Fe2++2e Cathode process: Oxygen absorption corrosion (when it is a weakly acidic or neutral solution): O2+2H2O+4e-→4OH Hydrogen evolution corrosion (when it is a strongly acidic solution): 2H++2e-=H2 Carbon dioxide corrosion: CO2+H2O+2e-→CO32-+H2↑ Hydrogen sulfide corrosion: H2S+2e-→S2-+H2↑ Cathodic protection: Provide the electrons required on the metal electrode, external current and sacrificial anode, the anodic process under sacrificial anode protection can be expressed by the following formula (zinc anode protection): Anodic process: Zn→Zn2++2e That is, the sacrificial anode protection formula: Zn→Zn2++2e- corrosion replaces the iron corrosion formula: Fe→Fe2++2e-, the cathodic process has not changed. In addition to protecting the sucker rod pipe through the sacrificial anode, another protective function is to use the secondary reaction product after the anode dissolution to form a film to inhibit corrosion.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wellbore anti-corrosion treatment device, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to a frame (2), the top of the frame (2) is spirally connected to an adjusting screw rod (3), the outer side of the adjusting screw rod (3) is sleeved with a sliding block (4), the front end of the sliding block (4) is penetrated by a connecting rope (5), the bottom end of the connecting rope (5) is fixedly connected to a connecting ball (6), the top outer side of the connecting ball (6) is tightly pressed against a locking ring (20), the outer side of the locking ring (20) is sleeved with a collar (7), the inner side of the collar (7) is sleeved with an oil pump (9), and the bottom outer side of the oil pump (9) is sleeved with an injection head (8).

2. A wellbore anti-corrosion treatment device according to claim 1, characterized in that: The outer side of the collar (7) is fixedly connected to a connecting pipe (11), the other end of the connecting pipe (11) is fixedly connected to a stirring tank (12), and the top end of the stirring tank (12) is fixedly connected to a feed port (14).

3. A wellbore anti-corrosion treatment device according to claim 2, characterized in that: A motor (13) is provided through the top of the stirring tank (12), and an output end of the motor (13) is rotatably connected to a stirring rod (17), and the outer side of the stirring rod (17) is rotatably provided inside the stirring tank (12).

4. A wellbore anti-corrosion treatment device according to claim 3, characterized in that: A rotating rod (15) is sleeved on the outer side of the output end of the motor (13), and a scraper (16) is fixedly connected to the bottom end of the rotating rod (15). The outer side of the scraper (16) is arranged in contact with the inner wall of the stirring tank (12).

5. The wellbore anti-corrosion treatment device according to claim 1, characterized in that: The bottom end of the support frame (1) is fixedly connected to a fixing seat (18), and the interior of the fixing seat (18) is rotatably connected to a support arm (19).

6. A wellbore anti-corrosion treatment device according to claim 5, characterized in that: The top end of the support frame (1) is fixedly connected with a handle (10), and the handle (10) is provided in two groups.

7. The wellbore anti-corrosion treatment device according to claim 1, characterized in that: A discharge trough is provided on the outer side of the injection head (8), and the discharge trough of the injection head (8) is provided in several groups.

8. The wellbore anti-corrosion treatment device according to claim 1, characterized in that: The oil pump (9) comprises a rotating disk (21) rotatably arranged at both ends in the middle, a flexible anode (22) fixedly arranged on the inner wall of the rotating disk (21) at the bottom, and a mesh enclosure (23) sheathed on the inner wall of the rotating disk (21) at the top, wherein a solid descaling agent (24) is fixedly arranged inside the mesh enclosure (23).

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