Oilfield-grade mercapto-containing corrosion inhibitor production equipment

Abstract

This utility model belongs to the field of corrosion inhibitor production technology, especially a mercapto-containing corrosion inhibitor production device for oil fields. It includes a leak-connecting device, a storage device, a driving and stirring device, and a driving and stirring motor. The storage device is fixedly connected to the inner wall of the leak-connecting device. The driving and stirring device is located on top of the storage device, and the driving and stirring motor is located on top of the driving and stirring device. The mercapto-containing corrosion inhibitor production device also includes: a feed inlet and a filter barrel. The feed inlet is located on top of the storage device, and the filter barrel is movably connected to the inner wall of the feed inlet. It also includes a horizontal plate, an extension plate, and a fixed plate, with two of each. In this utility model, the filter barrel is fixed or unlocked by rotating the adjusting plate to move the fixed plate, facilitating the installation or disassembly of the filter barrel. The filter barrel is used to filter the mercapto-containing corrosion inhibitor, facilitating its subsequent use and demonstrating good practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical product production testing equipment, and in particular to a production device for oilfield-use mercapto-containing corrosion inhibitors. Background Technology

[0002] In existing technologies, the materials used in oilfield production and transportation are mainly carbon steel and low alloy steel. These materials have poor corrosion resistance and often cause accidents such as well failure and pipeline leakage due to corrosion problems. Therefore, corrosion prevention has always been a key focus of safe production in oilfields.

[0003] There are many methods to inhibit metal corrosion. Adding corrosion inhibitors to the transmission medium does not require additional special equipment, is simple to operate, requires only a small amount (generally 30~100ppm), and does not change the properties of the corrosive medium or the process state of the protected equipment. It has been widely used in oil fields.

[0004] Currently, inorganic corrosion inhibitors mainly include chromates, silicates, molybdates, tungstates, polyphosphates, and dichromates. These inhibitors primarily rely on their own oxidation forms to form a dense oxide layer on the metal surface, thus inhibiting corrosion. However, most inorganic corrosion inhibitors contain heavy metals, and long-term use can lead to groundwater and environmental pollution, resulting in their limited use.

[0005] Organic corrosion inhibitors mainly contain elements such as N, P, O, and S. The polar centers form chemical adsorption with the empty orbitals of the metal through the lone pairs of electrons of the atoms, and the hydrophobic structure is tightly packed on the outside to form a protective layer, which plays a role in protecting the metal surface.

[0006] Thiol-containing corrosion inhibitors are highly polar and water-soluble, making them easy to use in oilfield produced water systems. In addition, the lone pair electrons outside the sulfur molecule are highly active and delocalized, resulting in excellent adsorption on metal surfaces. The protective layer formed is strong and resistant to erosion, making them excellent corrosion inhibitors.

[0007] Utility model CN209797451U discloses a bottling device for producing oilfield corrosion inhibitors, comprising a storage device body, a cap fixedly installed on the upper outer surface of the storage device body, a driving stirring device installed inside the storage device body, a driving stirring motor fixedly installed on the upper outer surface of the driving stirring device, a base fixedly installed on the lower outer surface of the storage device body, a movable ball fixedly installed on the lower outer surface of the base, and receiving grooves on both sides of the base. This utility model's bottling device for producing oilfield corrosion inhibitors, equipped with a driving stirring device, a leak-catching device, and a base, facilitates the uniform mixing and better fusion of various raw material chemical components with water, catches leaked liquid to prevent spillage, and allows for easy movement of the device, saving labor costs and offering better application prospects.

[0008] However, the above technical solutions lack the function of filtering the stored corrosion inhibitor. In actual use, the produced corrosion inhibitor is prone to generating or being mixed with impurities during the production, transportation and filling process. If these impurities are not cleaned, they will affect the subsequent use of the corrosion inhibitor. Therefore, we propose an oilfield-use mercapto-containing corrosion inhibitor production device to solve the above-mentioned problems. Utility Model Content

[0009] The purpose of this invention is to address the shortcomings of existing technologies, such as the lack of a filtering function for stored corrosion inhibitors, which leads to the generation or mixing of impurities in the produced corrosion inhibitors during production, transportation, and filling. If these impurities are not cleaned, they will affect the subsequent use of the corrosion inhibitors. Therefore, this invention proposes a mercapto-containing corrosion inhibitor production device for oil fields.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: An oilfield-grade mercapto-containing corrosion inhibitor production unit includes a leak-connecting device, a storage device, a driving and stirring device, and a driving and stirring motor. The storage device is fixedly connected to the inner wall of the leak-connecting device, and the driving and stirring device is located on top of the storage device. The driving and stirring motor is located on top of the driving and stirring device. The mercapto-containing corrosion inhibitor production unit also includes: The inlet and the filter barrel are provided, with the inlet located at the top of the storage device and the filter barrel movably connected to the inner wall of the inlet. The filter bucket has two horizontal plates, two extension plates, and two fixed plates. The two horizontal plates are symmetrically slidably connected to the top of the storage device. The two extension plates are fixedly connected to the rear side of the corresponding horizontal plates. The two fixed plates are respectively fixedly connected to the side of the two extension plates that are close to each other. The filter bucket has two fixing grooves on both the left and right sides. The two fixed plates are engaged with the corresponding fixing grooves. The control mechanism is located on top of the storage device and is connected to the horizontal plate.

[0011] As a preferred embodiment of this utility model, the control mechanism includes an adjusting plate, a lifting plate, and two push rods; The adjusting plate is rotatably connected to the top of the storage device, the two push rods are rotatably connected to the front side of the horizontal plate, the lifting plate is rotatably connected to the rear side of the two push rods, and the front side of the lifting plate is slidably connected to the rear side of the adjusting plate.

[0012] Furthermore, by rotating the adjusting plate, the lifting plate is pushed to slide, and the lifting plate drives the push rod to rotate and drive the horizontal plate to move horizontally, forming a single-handle operation mechanical transmission chain. By manually turning the adjusting plate, the fixing plate can be controlled to fix or unlock the filter barrel, which significantly improves the cleaning or replacement efficiency of the filter barrel.

[0013] In a preferred embodiment of this utility model, an adjustment shaft is fixedly connected to the rear side of the adjustment plate, and an adjustment groove is provided on the front side of the lifting plate. The outer wall of the adjustment shaft is movably connected to the inner wall of the adjustment groove.

[0014] Furthermore, by adjusting the shaft to slide along the adjustment groove of the lifting plate, the movement trajectory of the lifting plate is constrained, avoiding deviation of the push rod transmission angle, and facilitating the up-and-down movement of the lifting plate.

[0015] As a preferred embodiment of this utility model, the top of the storage device is symmetrically and fixedly connected with two upright plates, and the sides of the two upright plates that are close to each other are respectively movably connected to the left and right sides of the lifting plate.

[0016] Furthermore, by clamping the two sides of the lifting plate with the vertical plate, the horizontal swing of the lifting plate is restricted, ensuring the linkage stability between the push rod and the horizontal plate.

[0017] As a preferred embodiment of this utility model, two limit frames are fixedly connected to the sides of the two upright plates that are close to each other, and the two limit frames pass through the corresponding lifting plates.

[0018] Furthermore, a limit frame is used to create a vertical guide through the lifting plate, preventing the lifting plate from swaying back and forth and maintaining the force transmission accuracy of the adjusting plate.

[0019] As a preferred embodiment of this utility model, the top of the storage device is symmetrically fixedly connected with two fixing frames, the two fixing frames passing through corresponding horizontal plates, and the sides of the two fixing frames that are close to each other being fixedly connected to the sides of the two vertical plates that are far apart from each other.

[0020] Furthermore, the horizontal movement path is limited by the fixing frame passing through the horizontal plate to prevent the fixing plate from detaching from the filter barrel fixing groove.

[0021] As a preferred embodiment of this utility model, springs are fixedly connected to the sides of the two fixed frames that are close to each other, and the sides of the two springs that are close to each other are fixedly connected to the sides of the two horizontal plates that are far apart from each other.

[0022] Furthermore, the fixing bracket and the horizontal plate are connected by a spring. After the adjustment force is released, the horizontal plate automatically resets and the fixing plate remains in a locked state.

[0023] Beneficial effects: The filter canister directly filters corrosion inhibitor impurities through the feed inlet, blocking pollutants from entering the storage device at the source. The horizontal plate linkage extension plate pushes the fixing plate into the filter canister fixing groove, realizing the rapid locking of the filter unit. The control mechanism drives the horizontal plate displacement to complete the loading and unloading of the filter canister, solving the hidden danger of corrosion inhibitor failure caused by impurities. In this invention, the filter barrel is fixed or unlocked by rotating the adjusting plate to drive the fixed plate to move, so as to install or disassemble the filter barrel. The filter barrel is used to filter the mercapto-containing corrosion inhibitor, which facilitates the subsequent use of the mercapto-containing corrosion inhibitor and has good practicality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the oilfield-use mercapto-containing corrosion inhibitor production device proposed in this utility model; Figure 2 This is a partial structural schematic diagram of the oilfield-use mercapto-containing corrosion inhibitor production device proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the adjusting plate, lifting plate, push rod, horizontal plate, extension plate and fixing plate of the oilfield mercapto-containing corrosion inhibitor producer proposed in this utility model; Figure 4 This is a schematic diagram of the structure of the horizontal plate, extension plate, fixing plate and filter barrel of the oilfield-use mercapto-containing corrosion inhibitor production device proposed in this utility model.

[0025] In the diagram: 1. Leakage receiving device; 2. Storage device; 3. Driving stirring device; 4. Driving stirring motor; 5. Feed inlet; 6. Filter barrel; 7. Adjusting plate; 8. Lifting plate; 9. Vertical plate; 10. Limiting frame; 11. Push rod; 12. Horizontal plate; 13. Fixing frame; 14. Spring; 15. Extension plate; 16. Fixing plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1 Reference Figure 1-4An oilfield-grade mercapto-containing corrosion inhibitor production unit includes a leak-contact device 1, a storage device 2, a drive and agitation device 3, and a drive and agitation motor 4. The storage device 2 is fixedly connected to the inner wall of the leak-contact device 1. The drive and agitation device 3 is located on top of the storage device 2, and the drive and agitation motor 4 is located on top of the drive and agitation device 3. The mercapto-containing corrosion inhibitor production unit also includes: The feed inlet 5 and the filter barrel 6 are located on the top of the storage device 2. The filter barrel 6 is movably connected to the inner wall of the feed inlet 5. There are two horizontal plates 12, two extension plates 15, and two fixed plates 16. The two horizontal plates 12 are symmetrically slidably connected to the top of the storage device 2. The two extension plates 15 are fixedly connected to the rear side of the corresponding horizontal plates 12. The two fixed plates 16 are respectively fixedly connected to the side of the two extension plates 15 that are close to each other. The filter bucket 6 has two fixing grooves on both the left and right sides. The two fixed plates 16 are engaged with the corresponding fixing grooves. The control mechanism is located on the top of the storage device 2 and is connected to the horizontal plate 12.

[0028] Through the above mechanism: the filter barrel 6 directly filters corrosion inhibitor impurities through the feed port 5, blocking pollutants from entering the storage device 2 at the source. The horizontal plate 12, in conjunction with the extension plate 15, pushes the fixing plate 16 into the fixing groove of the filter barrel 6, realizing the rapid locking of the filter unit. The control mechanism drives the horizontal plate 12 to move and complete the loading and unloading of the filter barrel 6, solving the hidden danger of corrosion inhibitor failure caused by impurities.

[0029] To facilitate fixing or unlocking the filter barrel 6, the control mechanism includes an adjustment plate 7, a lifting plate 8, and two push rods 11. The adjusting plate 7 is rotatably connected to the top of the storage device 2, the two push rods 11 are rotatably connected to the front side of the horizontal plate 12, and the lifting plate 8 is rotatably connected to the rear side of the two push rods 11. The front side of the lifting plate 8 is slidably connected to the rear side of the adjusting plate 7. The adjusting plate 7 rotates to push the lifting plate 8 to slide, and the lifting plate 8 drives the push rods 11 to rotate and drive the horizontal plate 12 to move horizontally, forming a single-handle operation mechanical transmission chain. The fixing plate 16 can be simultaneously controlled to fix or unlock the filter bucket 6 by manually turning the adjusting plate 7, which significantly improves the cleaning or replacement efficiency of the filter bucket 6.

[0030] To facilitate the up-and-down movement of the lifting plate 8, an adjusting shaft is fixedly connected to the rear side of the adjusting plate 7, and an adjusting groove is provided on the front side of the lifting plate 8. The outer wall of the adjusting shaft is movably connected to the inner wall of the adjusting groove. By sliding the adjusting shaft along the adjusting groove of the lifting plate 8, the movement trajectory of the lifting plate 8 is constrained, the transmission angle of the push rod 11 is prevented from deviating, and the lifting plate 8 is easily moved up and down.

[0031] To prevent the lifting plate 8 from swinging horizontally, two upright plates 9 are symmetrically fixedly connected to the top of the storage device 2. The two upright plates 9 are movably connected to the left and right sides of the lifting plate 8 respectively on the side closest to each other. The upright plates 9 clamp the two sides of the lifting plate 8, restricting the horizontal swing of the lifting plate 8 and ensuring the linkage stability of the push rod 11 and the horizontal plate 12.

[0032] To facilitate the movement of the lifting plate 8 to its limit position, two limit frames 10 are fixedly connected to the sides of the two upright plates 9 that are close to each other. The two limit frames 10 pass through the corresponding lifting plates 8, forming a vertical guide to prevent the lifting plate 8 from swaying back and forth and to maintain the force transmission accuracy of the adjusting plate 7.

[0033] To facilitate the limiting of the horizontal plate 12 and ensure the stable movement of the fixed plate 16 so that it can easily engage with the fixed groove, two fixed frames 13 are symmetrically fixedly connected to the top of the storage device 2. The two fixed frames 13 penetrate the corresponding horizontal plate 12, and the sides of the two fixed frames 13 that are close to each other are fixedly connected to the sides of the two vertical plates 9 that are far apart from each other. The horizontal movement path is limited by the fixed frames 13 penetrating the horizontal plate 12 to prevent the fixed plate 16 from detaching from the fixed groove of the filter bucket 6.

[0034] To facilitate the automatic reset of the horizontal plate 12, springs 14 are fixedly connected to the sides of the two fixed brackets 13 that are close to each other. The sides of the two springs 14 that are close to each other are fixedly connected to the sides of the two horizontal plates 12 that are far from each other. The fixed brackets 13 and the horizontal plates 12 are connected by the springs 14. After the adjustment force is released, the horizontal plate 12 is automatically reset, and the fixed plate 16 is kept in a locked state.

[0035] The main body of the device adopts existing technology and can adopt the main body structure of the device of the patent with publication number CN209797451U.

[0036] The working principle of this utility model is as follows: In actual use, the outer wall of the feed inlet 5 is provided with a threaded groove, and a sealing cover is provided on the outer wall of the threaded groove. The sealing cover is threadedly connected to the outer wall of the feed inlet 5 through the threaded groove, and a sealing ring is provided on the inner wall of the sealing cover to seal the feed inlet 5. Two fixing grooves are symmetrically provided on the outer wall of the sealing cover. The sealing cover is fixed by engaging with the fixing groove through the fixing plate 16. When it is necessary to add a mercapto-containing corrosion inhibitor into the storage device 2, the adjusting plate 7 is first pushed to rotate. When the adjusting plate 7 rotates, it will drive the adjusting shaft to move, causing the lifting plate 8 to move down. At this time, the movement of the lifting plate 8 will drive the push rod 11 to move. At this time, the movement of the two push rods 11 will drive the two horizontal plates 12 to move to the side away from each other. The lifting plate 8 is limited by the cooperation of the vertical plate 9 and the limiting frame 10, so that the lifting plate 8 moves vertically and stably. The movement of the horizontal plate 12 will compress the spring 14. The fixing frame 13 will then control the horizontal plate 12. The horizontal plate 12 is limited to horizontal movement. When the horizontal plate 12 moves, it will drive the extension plate 15 to move, thereby disengaging the fixed plate 16 from the fixed groove and unlocking the sealing cover. At this time, the sealing cover can be rotated and removed. Then, the filter bucket 6 is inserted into the feed port 5 and the fixed groove is aligned with the fixed plate 16. At this time, the adjusting plate 7 can be pushed to rotate and reset. The rotation of the adjusting plate 7 will drive the lifting plate 8 to move upward. At the same time, the lifting plate 8 will drive the push rod 11 to reset. At this time, the spring 14 is unrestricted and pushes the horizontal plate 12 to move horizontally. The movement of the horizontal plate 12 will drive the two extension plates 15 to move closer to each other. The movement of the extension plates 15 will drive the fixed plate 16 to move and engage with the fixed groove to fix the filter bucket 6. At this time, a mercapto-based corrosion inhibitor can be poured into the filter bucket 6 to prevent impurities or dust from entering. After storage is completed, the above steps are repeated to remove the filter bucket 6 and seal the storage device 2 for convenient use.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An oilfield-grade mercapto-containing corrosion inhibitor production device, comprising a leak-connecting device (1), a storage device (2), a driving agitator (3), and a driving agitator motor (4), wherein the storage device (2) is fixedly connected to the inner wall of the leak-connecting device (1), the driving agitator (3) is disposed on top of the storage device (2), and the driving agitator motor (4) is disposed on top of the driving agitator (3), characterized in that, The mercapto-containing corrosion inhibitor production equipment also includes: The feed inlet (5) and the filter barrel (6) are provided. The feed inlet (5) is located on the top of the storage device (2), and the filter barrel (6) is movably connected to the inner wall of the feed inlet (5). The filter bucket (6) has two horizontal plates (12), two extension plates (15), and two fixed plates (16). The two horizontal plates (12) are symmetrically slidably connected to the top of the storage device (2). The two extension plates (15) are fixedly connected to the rear side of the corresponding horizontal plates (12). The two fixed plates (16) are respectively fixedly connected to the side of the two extension plates (15) that are close to each other. The filter bucket (6) has two fixed grooves on both the left and right sides. The two fixed plates (16) are engaged with the corresponding fixed grooves. The control mechanism is located on the top of the storage device (2) and is connected to the horizontal plate (12).

2. The oilfield-use mercapto-containing corrosion inhibitor production device according to claim 1, characterized in that, The control mechanism includes an adjustment plate (7), a lifting plate (8), and two push rods (11). The adjusting plate (7) is rotatably connected to the top of the storage device (2), the two push rods (11) are rotatably connected to the front side of the horizontal plate (12), the lifting plate (8) is rotatably connected to the rear side of the two push rods (11), and the front side of the lifting plate (8) is slidably connected to the rear side of the adjusting plate (7).

3. The oilfield-use mercapto-containing corrosion inhibitor production device according to claim 2, characterized in that, An adjustment shaft is fixedly connected to the rear side of the adjustment plate (7), and an adjustment groove is provided on the front side of the lifting plate (8). The outer wall of the adjustment shaft is movably connected to the inner wall of the adjustment groove.

4. The oilfield-use mercapto-containing corrosion inhibitor production device according to claim 1, characterized in that, The top of the storage device (2) is symmetrically fixedly connected with two upright plates (9), and the two upright plates (9) are respectively movably connected to the left and right sides of the lifting plate (8) on the side that is close to each other.

5. The oilfield-use mercapto-containing corrosion inhibitor production device according to claim 4, characterized in that, Two limit frames (10) are fixedly connected to each other on the side of the two upright plates (9), and there are two limit frames (10). The two limit frames (10) pass through the corresponding lifting plates (8).

6. The oilfield-use mercapto-containing corrosion inhibitor production device according to claim 1, characterized in that, The top of the storage device (2) is symmetrically fixedly connected with a fixing frame (13), and there are two fixing frames (13). The two fixing frames (13) pass through the corresponding horizontal plate (12), and the side of the two fixing frames (13) that is close to each other is fixedly connected to the side of the two vertical plates (9) that is far away from each other.

7. The oilfield-use mercapto-containing corrosion inhibitor production device according to claim 6, characterized in that, Two fixed brackets (13) are fixedly connected to springs (14) on the side that is close to each other, and the side that is close to each other of the two springs (14) is fixedly connected to the side that is far away from each other of the two horizontal plates (12).

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