Sacrificial anode protection device

Abstract

The utility model belongs to the technical field of sacrificial anodes, and discloses a sacrificial anode protection device which comprises a first steel pipe and a second steel pipe, flanges are installed at the two ends of the first steel pipe and the second steel pipe, the first steel pipe and the second steel pipe are in butt joint through the flanges, and sacrificial anodes are installed inside and outside the first steel pipe in a matched mode. An inner positioning mechanism and an outer positioning mechanism are respectively mounted at two ends of the sacrificial anode inside and outside the first steel pipe; the second steel pipe is provided with a drain outlet and a threaded cylinder, the threaded cylinder is in threaded connection with a sealing screw, the end part of the sealing screw is connected with a connecting rope, and the end part of the connecting rope is connected with a corrosion hanging piece. And the sacrificial anode is fixed by adopting the inner positioning mechanism and the outer positioning mechanism, so that the problem that the structure of the steel pipe is damaged does not exist.

Description

Technical Field

[0001] The utility model belongs to the technical field of sacrificial anodes, and particularly relates to a sacrificial anode protection device. Background Technique

[0002] Sacrificial anodes are often used to prevent metal corrosion. To extend the service life of pipelines and pipeline accessories in electrolyte solutions, the current solutions mainly include electrical insulation isolation technology and cathodic protection technology, namely sacrificial anode protection devices;

[0003] The current problem is that welding is mostly used for the installation of sacrificial anodes inside and outside steel pipes. One problem with welding is that the temperature at the welding point is relatively high during welding, which may damage the internal structure of the steel pipe, making it prone to problems such as cracks here, thereby affecting the service life. Therefore, it is necessary to optimize and improve the installation structure of sacrificial anodes. Summary of the Utility Model

[0004] Aiming at the problems raised in the above background technique, the purpose of the present utility model is: to provide a sacrificial anode protection device.

[0005] To achieve the above technical purpose, the technical solution adopted by the present utility model is as follows:

[0006] A sacrificial anode protection device includes a first steel pipe and a second steel pipe with flanges installed at both ends. The first steel pipe and the second steel pipe are butted through the flanges. Sacrificial anodes are installed inside and outside the first steel pipe in a matching manner. Inner positioning mechanisms and outer positioning mechanisms are respectively installed at both ends of the sacrificial anodes inside and outside the first steel pipe;

[0007] The second steel pipe is provided with a sewage outlet and a threaded cylinder. The threaded cylinder is threadedly connected with a sealing screw. The end of the sealing screw is connected with a connecting rope, and the end of the connecting rope is connected with a corrosion coupon;

[0008] The inner positioning mechanism includes an inner ring. The inner ring is evenly provided with a plurality of outer openings. Outer top blocks are placed in the outer openings. The outer top blocks are provided with first screw grooves. The inner ring is threadedly connected with an inner screw, and the end of the inner screw is located in the first screw groove;

[0009] The outer positioning mechanism includes an outer ring. The outer ring is evenly provided with a plurality of inner openings. Inner top blocks are placed in the inner openings. The inner top blocks are provided with second screw grooves. The outer ring is threadedly connected with an outer screw, and the end of the outer screw is located in the second screw groove.

[0010] Further defined, both the inner ring and the outer ring are integrally connected with screw installation cylinders. Such a design extends the length of the threaded match with the inner screw and the outer screw, thereby enhancing the connection resistance strength of the inner screw and the outer screw.

[0011] Further define that there are at least four of the outer openings and the inner openings. Such a design ensures the connection strength.

[0012] Further define that friction lines are provided on the contact surfaces of the outer top block and the inner top block. Such a design enhances the friction force and strengthens the positioning strength.

[0013] Further define that the outer top block can completely enter the outer opening, and the inner top block can completely enter the inner opening. Such a design ensures the contact strength and limits the outer top block and the inner top block.

[0014] Beneficial effects of adopting the present utility model:

[0015] With the structural design of the present utility model, instead of using welding to fix the sacrificial anode, an inner positioning mechanism and an outer positioning mechanism are used to fix the sacrificial anode. Therefore, there is no problem of damaging the steel pipe structure, ensuring the structural strength of the steel pipe. At the same time, using the inner positioning mechanism and the outer positioning mechanism for fixing can realize the disassembly of the sacrificial anode, which is beneficial for subsequent waste utilization, and the inner positioning mechanism and the outer positioning mechanism can also be used for fixing the next group of sacrificial anodes;

[0016] With the structural design of the present utility model, under the effect of the corrosion coupon, the corrosion situation of the oil-gas-water pipeline is dynamically monitored, providing basic data for analyzing and studying the pipeline corrosion mechanism. Brief description of the drawings

[0017] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings;

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the sacrificial anode protection device of the present utility model;

[0019] Figure 2 It is a schematic cross-sectional structural diagram of an embodiment of the sacrificial anode protection device of the present utility model;

[0020] Figure 3 It is Figure 2 The enlarged structural diagram at A in

[0021] Figure 4 It is a schematic structural diagram of the inner positioning mechanism and the outer positioning mechanism of an embodiment of the sacrificial anode protection device of the present utility model;

[0022] The main element symbols are explained as follows:

[0023] Flange 1; First steel pipe 2; Second steel pipe 3; Sacrificial anode 4; Inner positioning mechanism 5; Outer positioning mechanism 6; Drain port 7; Threaded cylinder 8; Sealing screw 9; Connecting rope 10; Corrosion coupon 11; Screw installation cylinder 12;

[0024] Inner ring 51; Outer opening 52; Outer top block 53; First screw groove 54; Inner screw 55;

[0025] Outer ring 61; Inner opening 62; Inner top block 63; Second screw groove 64; Outer screw 65. Specific implementation mode

[0026] In order to enable those skilled in the art to better understand the present utility model, the technical solution of the present utility model will be further described below with reference to the drawings and embodiments.

[0027] As Figures 1 to 4 shown, the sacrificial anode protection device of the present utility model includes a first steel pipe 2 and a second steel pipe 3 with flanges 1 installed at both ends. The first steel pipe 2 and the second steel pipe 3 are butted through the flanges 1. Sacrificial anodes 4 are installed inside and outside the first steel pipe 2 in a matching manner. Inner positioning mechanisms 5 and outer positioning mechanisms 6 are installed at both ends of the sacrificial anode 4 inside and outside the first steel pipe 2 respectively;

[0028] The second steel pipe 3 is provided with a drain port 7 and a threaded cylinder 8. The threaded cylinder 8 is threadedly connected with a sealing screw 9. The end of the sealing screw 9 is connected with a connecting rope 10. The end of the connecting rope 10 is connected with a corrosion coupon 11;

[0029] The inner positioning mechanism 5 includes an inner ring 51. The inner ring 51 is evenly provided with a plurality of outer openings 52. Outer top blocks 53 are placed in the outer openings 52. The outer top blocks 53 are provided with first screw grooves 54. The inner ring 51 is threadedly connected with an inner screw 55. The end of the inner screw 55 is located in the first screw groove 54;

[0030] The outer positioning mechanism 6 includes an outer ring 61. The outer ring 61 is evenly provided with a plurality of inner openings 62. Inner top blocks 63 are placed in the inner openings 62. The inner top blocks 63 are provided with second screw grooves 64. The outer ring 61 is threadedly connected with an outer screw 65. The end of the outer screw 65 is located in the second screw groove 64.

[0031] In this embodiment, when using the sacrificial anode protection device, first fix the inner positioning mechanism 5 and the outer positioning mechanism 6 at one end of the first steel pipe 2. Then, after abutting the ends of the sacrificial anodes on both the inside and outside against the edges of the fixed inner positioning mechanism 5 and outer positioning mechanism 6, use another set of inner positioning mechanism 5 and outer positioning mechanism 6 to fix the other end of the sacrificial anode, that is, the fixation of the sacrificial anode is completed;

[0032] The fixing methods of the inner positioning mechanism 5 and the outer positioning mechanism 6 are only as follows: rotate the inner screw 55 and the outer screw 65. The rotation of the inner screw 55 causes the outer top block 53 to move towards the inner wall of the first steel pipe 2. After the contact, under the effect of friction, the fixing of the inner ring 51 is achieved. Under the mutual restriction of multiple outer top blocks 53, the complete fixing of the inner ring 51 is achieved, that is, the position limit of the sacrificial anode is realized. Similarly, the rotation of the outer screw 65 causes the inner top block 63 to move towards the outer wall of the first steel pipe 2, thereby realizing the fixing of the outer ring 61. The fixing of the inner positioning mechanism 5 and the outer positioning mechanism 6 at both ends realizes the position fixing of the sacrificial anode, and it is detachable and reusable, saving economic costs;

[0033] Furthermore, the corrosion coupon 11 installed in the second steel pipe 3 can dynamically monitor the corrosion condition of the oil-gas-water pipeline, providing basic data for analyzing and studying the pipeline corrosion mechanism.

[0034] Preferably, both the inner ring 51 and the outer ring 61 are integrally connected with screw installation cylinders 12. Such a design extends the length of the thread matching with the inner screw 55 and the outer screw 65, thereby enhancing the connection contact strength between the inner screw 55 and the outer screw 65. In fact, the length dimension of the screw installation cylinder 12 can also be considered according to specific situations.

[0035] Preferably, there are at least four outer openings 52 and inner openings 62. Such a design ensures the connection strength. In fact, the number of the outer openings 52 and the inner openings 62 can also be considered according to specific situations.

[0036] Preferably, the contact surfaces of the outer top block 53 and the inner top block 63 are provided with friction lines. Such a design enhances the friction force and strengthens the positioning strength. In fact, measures to enhance the friction force can also be considered according to specific situations.

[0037] Preferably, the outer top block 53 can completely enter the outer opening 52, and the inner top block 63 can completely enter the inner opening 62. Such a design ensures the contact strength and limits the outer top block 53 and the inner top block 63. In fact, the specification dimensions of the outer top block 53 and the inner top block 63 can also be considered according to specific situations.

[0038] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A sacrificial anode protection device, comprising a first steel pipe (2) and a second steel pipe (3) with flanges (1) installed at both ends, wherein the first steel pipe (2) and the second steel pipe (3) are butt-jointed via the flanges (1), characterized in that: Sacrificial anodes (4) are matched and installed inside and outside the first steel tube (2); and inner positioning mechanisms (5) and outer positioning mechanisms (6) are installed inside and outside the first steel tube (2) at both ends of the sacrificial anode (4) respectively; The second steel pipe (3) is provided with a sewage outlet (7) and a threaded barrel (8), the threaded barrel (8) is threadedly connected with a sealing screw (9), the end of the sealing screw (9) is connected with a connecting rope (10), and the end of the connecting rope (10) is connected with a corrosion hanging piece (11); The inner positioning mechanism (5) comprises an inner ring (51), the inner ring (51) is evenly provided with a plurality of outer openings (52), an outer top block (53) is placed in the outer opening (52), the outer top block (53) is provided with a first screw groove (54), the inner ring (51) is threadedly connected with an inner screw (55), and the end of the inner screw (55) is located in the first screw groove (54); The external positioning mechanism (6) comprises an outer ring (61), the outer ring (61) is evenly provided with a plurality of inner openings (62), an inner top block (63) is placed in the inner opening (62), the inner top block (63) is provided with a second screw groove (64), the outer ring (61) is threadedly connected with an outer screw (65), and the end of the outer screw (65) is located in the second screw groove (64).

2. The sacrificial anode protection device according to claim 1, characterized in that: The inner ring (51) and the outer ring (61) are both integrally connected with a screw mounting cylinder (12).

3. The sacrificial anode protection device according to claim 2, characterized in that: The outer openings (52) and the inner openings (62) are each provided with at least four.

4. The sacrificial anode protection device according to claim 3, characterized in that: The contact surfaces of the outer top block (53) and the inner top block (63) are both provided with friction lines.

5. The sacrificial anode protection device according to claim 4, characterized in that: The outer top block (53) can completely enter the outer opening (52), and the inner top block (63) can completely enter the inner opening (62).

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