Novel low-temperature carbon seamless steel tube

Abstract

The utility model provides a novel low-temperature carbon seamless steel pipe, which relates to the technical field of metal processing, and comprises a carbon steel pipe body and a carbon steel pipe mounting mechanism, the carbon steel pipe mounting mechanism is mounted on the outer side of the carbon steel pipe body, and through the arrangement of the carbon steel pipe mounting mechanism, when the novel low-temperature carbon seamless steel pipe needs to be used, the chemical performance of a red copper film is stable; the cable integrates the characteristics of cold resistance, heat resistance, pressure resistance, corrosion resistance, fire resistance and the like, can be used for a long time in different environments, is particularly important for petroleum transportation, and needs to operate under extreme temperature and pressure conditions, and the anticorrosive coating adopts an epoxy powder coating which is a thermosetting coating, so that the service life of the epoxy powder coating is greatly prolonged, and the service life of the epoxy powder coating is prolonged. Epoxy powder is sprayed on the surface of a preheated pipeline, then a uniform, continuous and firm anti-corrosion film is formed through cooling, and the epoxy powder coating is particularly suitable for pipeline corrosion prevention in a harsh environment due to excellent performance, so that the overall service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing, in particular to a novel carbon seamless steel pipe for low temperature use. Background Art

[0002] Low temperature carbon seamless steel pipe is a kind of seamless steel pipe specially designed for working in low temperature environment. This kind of steel pipe is usually made of carbon steel, has good toughness and strength, and is suitable for working occasions with lower temperatures. In the oil, natural gas transportation, chemical industry and refrigeration equipment industries, carbon steel seamless steel pipe is widely used. Low temperature usually refers to the temperature range between -20℃ and -196℃. There are specific requirements for the material selection and manufacturing process of seamless steel pipes within this range to ensure the reliability and safety of the pipeline under low temperature conditions.

[0003] After searching, the patent number "CN214008385U" mentioned in the text that "the utility model belongs to the technical field of seamless steel pipes, specifically a low-temperature resistant alloy seamless steel pipe, including a closed box, the two sides of the outside of the closed box are fixedly connected with symmetrically distributed fixed blocks, the bottom of the fixed block is fixedly connected with a bracket, the inside of the closed box is fixedly connected with a positioning tube, the inside of the positioning tube is connected with an inner tube, the two ends of the inside of the positioning tube are provided with symmetrically distributed annular grooves, and the inner side of the annular groove is movably connected with a gasket". When in use, the utility model opens symmetrically distributed outer grooves on both sides of the outside of the steel pipe, and opens an annular groove inside the outer pipe. shaped groove, and the arc plate is arranged on the inner side of the annular groove, and the outer groove and the arc plate are buckled at the same time, and the spiral downward pressure of the screw rod is used to make the arc plate tightly pressed against the inner side of the outer groove, which can ensure that the device can solve the problems of uneven thickness of welding nodes and easy fracture caused by traditional welding. However, in the process of carbon seamless steel pipes and natural gas transportation, since the transportation route of such items is usually long and the pressure is high, the pressure on the welding part is usually greater than that of seamless steel pipes used in daily life. If there is no external force to reinforce the joints and monitor the pressure in real time, it is easy to cause gas and liquid leakage at the welding part due to excessive pressure during use.

[0004] Therefore, we provide a new type of low-temperature carbon seamless steel pipe to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a novel carbon seamless steel pipe for low temperature use, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of carbon seamless steel pipe for low temperature, comprising a carbon steel pipe body and a carbon steel pipe installation mechanism, wherein the carbon steel pipe installation mechanism is installed on the outer side of the carbon steel pipe body;

[0007] The carbon steel pipe installation mechanism includes a red copper film, an anti-corrosion coating, a steel pipe fixing component and a steel pipe pressure monitoring component. The inner side of the carbon steel pipe body is provided with a red copper film, the outer side of the carbon steel pipe body is provided with an anti-corrosion coating, a steel pipe fixing component is installed on the outer side of the anti-corrosion coating, and a steel pipe pressure monitoring component is installed on the left side of the steel pipe fixing component.

[0008] Preferably, the copper film and the carbon steel pipe body are welded, and the copper film and the carbon steel pipe body are tightly fitted.

[0009] Preferably, the anti-corrosion coating is adhesively connected to the carbon steel pipe body, and the anti-corrosion coating is an epoxy powder coating.

[0010] Preferably, the steel pipe fixing assembly comprises an inner connecting buckle and an outer connecting buckle, the left end of the carbon steel pipe body is welded with an inner connecting buckle, and the left slot of the inner connecting buckle is connected with an outer connecting buckle.

[0011] Preferably, the steel pipe pressure monitoring assembly includes a support groove, a limit ring, a connecting screw, a fixing nut, a compression spring, a force bolt, a hydraulic telescopic force measuring rod, a signal transmission line and a fixed frame. A support groove is welded on the outside of the anti-corrosion coating, a limit ring is installed on the outside of the support groove, a connecting screw is installed in the middle of the limit ring, the outer end of the connecting screw is threadedly connected with a fixing nut, a compression spring is installed in the middle of the connecting screw, force bolts are installed on the left and right sides of the compression spring, a hydraulic telescopic force measuring rod is installed in the middle of the force bolt, a signal transmission line is welded to the end of the hydraulic telescopic force measuring rod, and a fixed frame is installed on the right side of the signal transmission line.

[0012] Preferably, the connecting screw and the compression spring are arranged bilaterally symmetrically, and the compression spring is a steel strong compression spring.

[0013] Preferably, the force-bearing bolt and the hydraulic telescopic force-measuring rod are symmetrically arranged on the left and right sides, and the force-bearing bolt and the hydraulic telescopic force-measuring rod form a force-measuring assembly through a compression spring.

[0014] Preferably, an information detection component is installed on the right side of the fixing frame, and the information detection component includes an information transmission support frame and an information display screen. The information transmission support frame is welded to the right side of the fixing frame, and the information display screen is welded to the right side of the information transmission support frame.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Through the setting of the carbon steel pipe installation mechanism, when it is needed, the chemical properties of the copper film are stable, and it combines the characteristics of cold resistance, heat resistance, pressure resistance, corrosion resistance and fire resistance. It can be used for a long time in different environments. This is especially important for oil transportation because it needs to operate under extreme temperature and pressure conditions. The anti-corrosion coating adopts epoxy powder coating, which is a thermosetting coating. By spraying epoxy powder on the preheated pipe surface and then cooling it to form a uniform, continuous and strong anti-corrosion film, epoxy powder coating is particularly suitable for pipeline corrosion protection in harsh and demanding environments due to its superior performance.

[0017] 2. Through the setting of the carbon steel pipe installation mechanism, when it is needed, by using connecting screws to fix the two sets of limit rings at the fixed positions of the carbon steel pipe body, it can provide constraint force for the stress points of the two carbon steel pipe bodies, thereby reducing the pressure. The compression spring will provide inward constraint force when the connecting screw is stressed, avoiding the connecting screw from being subjected to too much rigid traction, thereby affecting subsequent monitoring. As the compression spring is stretched under stress, the force bolt will change position as the compression spring is stretched, and when the position of the force bolt changes, the hydraulic telescopic force measuring rod will be subjected to the traction force at both ends to measure the change in pressure, which will then be displayed on the information display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the split structure of the carbon steel pipe body of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the carbon steel pipe installation mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of the steel pipe pressure monitoring assembly of the utility model;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the carbon steel pipe body of the utility model.

[0023] Numbers in the figure: 1. Carbon steel pipe body; 2. Carbon steel pipe installation mechanism; 21. Copper film; 22. Anti-corrosion coating; 23. Steel pipe fixing assembly; 231. Connecting inner buckle; 232. Connecting outer buckle; 24. Steel pipe pressure monitoring assembly; 241. Support groove; 242. Limiting ring; 243. Connecting screw; 244. Fixing nut; 245. Compression spring; 246. Force bolt; 247. Hydraulic telescopic force measuring rod; 248. Signal transmission line; 249. Fixed frame; 3. Information detection assembly; 31. Information transmission support frame; 32. Information display screen. DETAILED DESCRIPTION

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

[0025] Embodiment 1

[0026] See also Figure 1-5 As shown, the utility model provides a technical solution: a new type of carbon seamless steel pipe for low temperature, comprising a carbon steel pipe body 1 and a carbon steel pipe installation mechanism 2, wherein the carbon steel pipe installation mechanism 2 is installed on the outer side of the carbon steel pipe body 1;

[0027] The carbon steel pipe installation mechanism 2 includes a red copper film 21, an anti-corrosion coating 22, a steel pipe fixing component 23 and a steel pipe pressure monitoring component 24. The red copper film 21 is arranged on the inner side of the carbon steel pipe body 1, the anti-corrosion coating 22 is arranged on the outer side of the carbon steel pipe body 1, the steel pipe fixing component 23 is installed on the outer side of the anti-corrosion coating 22, and the steel pipe pressure monitoring component 24 is installed on the left side of the steel pipe fixing component 23.

[0028] Furthermore, the copper film 21 and the carbon steel pipe body 1 are welded, and the copper film 21 fits tightly against the carbon steel pipe body 1. When needed, the copper film 21 has stable chemical properties, and combines the characteristics of cold resistance, heat resistance, pressure resistance, corrosion resistance and fire resistance. It can be used for a long time in different environments, which is especially important for oil transportation because it needs to operate under extreme temperature and pressure conditions.

[0029] Furthermore, the anti-corrosion coating 22 and the carbon steel pipe body 1 are adhesively connected. The anti-corrosion coating 22 is an epoxy powder coating. Since the anti-corrosion coating 22 adopts epoxy powder coating, which is a thermosetting coating, epoxy powder is sprayed on the preheated pipe surface and then cooled to form a uniform, continuous and strong anti-corrosion film. The epoxy powder coating is particularly suitable for pipeline corrosion protection in harsh environments due to its superior performance.

[0030] Furthermore, the steel pipe fixing assembly 23 includes an inner connecting buckle 231 and an outer connecting buckle 232. The left end of the carbon steel pipe body 1 is welded with the inner connecting buckle 231, and the left slot of the inner connecting buckle 231 is connected with the outer connecting buckle 232. When needed, the outer connecting buckle 232 and the inner connecting buckle 231 are buckled together, and then the outer connecting buckle 232 and the inner connecting buckle 231 are welded by electric welding. In this way, the problem of thinning of the welding point caused by welding is reduced by transferring the welding point, thereby strengthening the connection rigidity of the steel pipe.

[0031] Furthermore, the steel pipe pressure monitoring assembly 24 includes a support groove 241, a limit ring 242, a connecting screw 243, a fixing nut 244, a compression spring 245, a force bolt 246, a hydraulic telescopic force measuring rod 247, a signal transmission line 248 and a fixing frame 249. The outer side of the anti-corrosion coating 22 is welded with a support groove 241, and the outer side of the support groove 241 is installed with a limit ring 242. The middle of the limit ring 242 is installed with a connecting screw 243, and the outer end of the connecting screw 243 is threadedly connected with a fixing nut 244. The middle of the connecting screw 243 A compression spring 245 is installed in the middle, and a force bolt 246 is installed on the left and right sides of the compression spring 245. A hydraulic telescopic force measuring rod 247 is installed in the middle of the force bolt 246. A signal transmission line 248 is welded to the end of the hydraulic telescopic force measuring rod 247, and a fixing frame 249 is installed on the right side of the signal transmission line 248. When needed, the two sets of limit rings 242 can be fixed at the fixed position of the carbon steel pipe body 1 by using the connecting screw 243, which can provide a restraining force for the force points of the two carbon steel pipe bodies 1, thereby having the effect of reducing pressure.

[0032] Furthermore, the connecting screw 243 and the compression spring 245 are arranged symmetrically on the left and right. The compression spring 245 is a steel strong compression spring. When needed, the compression spring 245 will provide an inward restraining force when the connecting screw 243 is under force, thereby preventing the connecting screw 243 from being subjected to too much rigid traction, thereby affecting subsequent monitoring.

[0033] Furthermore, the force bolt 246 and the hydraulic telescopic force measuring rod 247 are symmetrically arranged on the left and right sides, and the force bolt 246 and the hydraulic telescopic force measuring rod 247 form a force measuring assembly through the compression spring 245. When it is needed, as the compression spring 245 is stretched under force, the position of the force bolt 246 will change as the compression spring 245 is stretched. When the position of the force bolt 246 changes, the hydraulic telescopic force measuring rod 247 will be affected by the traction force at both ends to measure the change in pressure, which will then be displayed on the information display screen 32.

[0034] Embodiment 2

[0035] See also Figure 1 and Figure 3As shown, compared with Example 1, as another implementation of the utility model, an information detection component 3 is installed on the right side of the fixed frame 249, and the information detection component 3 includes an information transmission support frame 31 and an information display screen 32. The information transmission support frame 31 is welded to the right side of the fixed frame 249, and the information display screen 32 is welded to the right side of the information transmission support frame 31. When it is needed, the information transmission support frame 31 will transmit all the force information to the information display screen 32. In this way, during the monitoring process, the specific location where the leakage occurs can be calculated by the force size at different positions, so as to achieve more accurate data measurement and monitoring.

[0036] Working principle: A new type of low-temperature carbon seamless steel pipe is moved to the working position. When in use, the first step is to buckle a carbon steel pipe body 1 with a connecting outer buckle 232 and another carbon steel pipe body 1 with a connecting inner buckle 231, and then use electric welding to weld. After welding, fix the limit rings 242 on both sides with the support groove 241 respectively, and then use the connecting screw 243 and the compression spring 245 to tighten the two limit rings 242, and use the fixing nut 244 to fix. In the second step, as the oil begins to be infused, the copper film 21 will protect the oil, and the anti-corrosion coating 22 will protect the oil. To protect the outside of the carbon steel pipe body 1 from corrosion, the compression spring 245 will change according to the traction pressure of the connecting screw 243, and the force bolt 246 will change its position as the compression spring 245 is stretched, and the position of the force bolt 246 will also change, and the hydraulic telescopic force measuring rod 247 will be subjected to the traction force at both ends to measure the pressure change, and the measured data will be transmitted to the information transmission support frame 31 through the signal transmission line 248 in the fixed frame 249, and then transmitted to the information display screen 32 through the information transmission support frame 31, and the force data will be displayed, thus completing the use process of a new type of low-temperature carbon seamless steel pipe.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel carbon seamless steel pipe for low temperature use, comprising a carbon steel pipe body (1) and a carbon steel pipe mounting mechanism (2), characterized in that: A carbon steel pipe installation mechanism (2) is installed on the outer side of the carbon steel pipe body (1); The carbon steel pipe installation mechanism (2) comprises a copper film (21), an anti-corrosion coating (22), a steel pipe fixing component (23) and a steel pipe pressure monitoring component (24); the inner side of the carbon steel pipe body (1) is provided with a copper film (21); the outer side of the carbon steel pipe body (1) is provided with an anti-corrosion coating (22); the outer side of the anti-corrosion coating (22) is provided with a steel pipe fixing component (23); and the left side of the steel pipe fixing component (23) is provided with a steel pipe pressure monitoring component (24).

2. A novel low temperature carbon seamless steel pipe according to claim 1, characterized in that: The copper film (21) and the carbon steel pipe body (1) are welded, and the copper film (21) and the carbon steel pipe body (1) are tightly fitted.

3. A novel low temperature carbon seamless steel pipe according to claim 1, characterized in that: The anti-corrosion coating (22) and the carbon steel pipe body (1) are connected by adhesion, and the anti-corrosion coating (22) is an epoxy powder coating.

4. A novel low temperature carbon seamless steel pipe according to claim 1, characterized in that: The steel pipe fixing assembly (23) comprises an inner connecting buckle (231) and an outer connecting buckle (232); the inner connecting buckle (231) is welded to the left end of the carbon steel pipe body (1); and the outer connecting buckle (232) is connected to the left slot of the inner connecting buckle (231).

5. A novel low temperature carbon seamless steel pipe according to claim 1, characterized in that: The steel pipe pressure monitoring assembly (24) comprises a support groove (241), a limit ring (242), a connecting screw (243), a fixing nut (244), a pressure spring (245), a force bolt (246), a hydraulic telescopic force measuring rod (247), a signal transmission line (248) and a fixing frame (249), the outer side of the anti-corrosion coating (22) is welded with a support groove (241), the outer side of the support groove (241) is installed with a limit ring (242), and the middle of the limit ring (242) is installed with a connecting screw (243). 43), the outer ends of the connecting screws (243) are threadedly connected with fixing nuts (244), the middle of the connecting screws (243) are installed with compression springs (245), the left and right sides of the compression springs (245) are installed with force bolts (246), the middle of the force bolts (246) are installed with hydraulic telescopic force measuring rods (247), the ends of the hydraulic telescopic force measuring rods (247) are welded with signal transmission lines (248), and the right side of the signal transmission lines (248) is installed with a fixing frame (249).

6. A novel low temperature carbon seamless steel pipe according to claim 5, characterized in that: The connecting screw rod (243) and the pressure spring (245) are arranged in a bilaterally symmetrical manner, and the pressure spring (245) is a steel strong pressure spring.

7. A novel low temperature carbon seamless steel pipe according to claim 5, characterized in that: The force-bearing bolt (246) and the hydraulic telescopic force-measuring rod (247) are symmetrically arranged on the left and right sides, and the force-bearing bolt (246) and the hydraulic telescopic force-measuring rod (247) form a force-measuring assembly via a compression spring (245).

8. The novel low temperature carbon seamless steel pipe according to claim 5, characterized in that: An information detection component (3) is installed on the right side of the fixing frame (249), and the information detection component (3) includes an information transmission support frame (31) and an information display screen (32). The information transmission support frame (31) is welded to the right side of the fixing frame (249), and the information display screen (32) is welded to the right side of the information transmission support frame (31).

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