Intelligent control device for cooling rate of welding seam of high-frequency welded pipe

Abstract

The utility model discloses a high-frequency welded pipe welding seam cooling rate intelligent regulation and control device which comprises a supporting base, positioning rods are fixedly connected to the two sides of the surface of the supporting base, an arc-shaped cooling plate is rotationally connected to the surface of a supporting plate through a hinge, and a cooling pipeline is fixedly installed in the arc-shaped cooling plate. A connecting pipe is fixedly connected to one end of the cooling pipeline, a booster pump is fixedly installed on one side of the surface of the supporting base, an air blower is fixedly installed on one side of the booster pump, an infrared thermometer is fixedly installed on one side of the inner wall of the arc-shaped cooling plate, a recycling box is fixedly connected to the surface of the supporting base, and a plc is fixedly installed on one side of the recycling box. The intelligent control device has the advantages that the temperature of the surface of the welding seam is monitored through the infrared thermometer, and the PLC can control the booster pump and the air blower to work according to the monitored temperature, so that intelligent control during cooling of the welding seam of the high-frequency welding pipe is achieved, the cooling speed of the welding seam is effectively increased, and meanwhile the welding quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of high-frequency welded pipe technology, specifically to an intelligent control device for the cooling rate of high-frequency welded pipe weld seam. Background Technology

[0002] High-frequency welded pipes are widely used in modern industrial production due to their advantages such as high production efficiency and good welding quality. However, during the high-frequency welding process, the weld seam requires proper cooling after being exposed to high temperatures to ensure weld quality and material properties. After welding, the temperature at the weld seam is usually high, and the cooling rate under natural conditions is relatively slow. This not only prolongs the production process time but may also lead to uneven microstructure at the weld seam, affecting the overall performance of the welded pipe.

[0003] To address this issue, existing technologies commonly employ water cooling for rapid weld cooling. While this method significantly increases cooling rate and shortens processing time, it also has limitations. Specifically, continuous rapid water cooling can lead to excessively high cooling rates, generating significant thermal stress at the weld joint and potentially causing cracks, severely impacting weld quality. Furthermore, excessively rapid cooling can alter the weld metal's microstructure, such as the formation of brittle phases, further reducing the mechanical properties of the weld joint.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in related technologies, this utility model proposes an intelligent control device for the cooling rate of high-frequency welded pipe welds to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A smart control device for cooling rate of high-frequency welded pipe weld seam includes a support base, positioning rods fixedly connected to both sides of the support base, a support plate fixedly connected to the top of the positioning rods, an arc-shaped cooling plate rotatably connected to the surface of the support plate via a hinge, a cooling pipe fixedly installed inside the arc-shaped cooling plate, a connecting pipe fixedly connected to one end of the cooling pipe, a booster pump fixedly installed on one side of the support base, a blower fixedly installed on one side of the booster pump, an infrared thermometer fixedly installed on one side of the inner wall of the arc-shaped cooling plate, a recycling bin fixedly connected to the surface of the support base, and a PLC controller fixedly installed on one side of the recycling bin.

[0008] Furthermore, in order to reuse the recycled water at a certain temperature for cooling the weld, a T-shaped pipe is fixedly installed at the water inlet of the booster pump. One end of the T-shaped pipe is fixedly connected to the recycling tank, and the other end is fixedly installed with a cold water pipe. Solenoid valves are fixedly installed on both sides of the T-shaped pipe.

[0009] Furthermore, in order to enable the booster pump and blower to inject cooling water and outside air into the cooling pipes respectively, a water supply pipe is fixedly installed at the outlet of the booster pump, and a rubber hose is fixedly connected to one end of the cooling pipe in each of the two arc-shaped cooling plates. The end of the water supply pipe is fixedly connected to one of the rubber hoses, and an air supply pipe is fixedly installed at the outlet of the blower. The end of the air supply pipe is fixedly connected to the other rubber hose.

[0010] Furthermore, to prevent backflow of cooling water in the cooling pipes, a solenoid valve is fixedly installed at one end of the rubber hose.

[0011] Furthermore, in order to achieve the interconnection between the two arc-shaped cooling plates and the cooling pipes, a positioning plate is fixedly connected to the top of the arc-shaped cooling plate, and the surface of the positioning plate has positioning holes.

[0012] Furthermore, in order to enable the support base to move, casters are rotatably installed on both sides of the bottom surface of the support base.

[0013] Furthermore, to facilitate the pushing and pulling movement of the entire device, a pusher frame is fixedly connected to the surface of the support base.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The surface temperature of the weld is monitored by an infrared thermometer. The PLC controller can adjust the operation of the booster pump and blower according to the monitored temperature. The recovery tank can recover the cooling water after absorbing heat. The cooling method adopts a staged cooling approach, which uses water cooling, air cooling and recovered warm water. First, water cooling is used to quickly reduce the temperature of the weld. Then, the recovered warm water is used for gentle cooling. Finally, the blower is used for slow air cooling. This multi-stage cooling method can effectively avoid cracking caused by excessive cooling speed, while ensuring the quality and mechanical properties of the weld.

[0016] 2. By recycling the warm water after water cooling and using it in subsequent cooling steps, not only is the utilization rate of water resources improved and the demand for fresh water during the water cooling process reduced, but production costs are also lowered. Furthermore, because warm water cooling is more gradual than cold water cooling, it allows for precise control of the weld cooling efficiency, in addition to air cooling and low-temperature water cooling. This avoids continuous rapid cooling of the weld and prevents weld cracking caused by rapid temperature changes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the surface structure of an intelligent control device for cooling rate of high-frequency welded pipe weld seam according to an embodiment of the present utility model.

[0019] Figure 2 This is a side view of an intelligent control device for cooling rate of high-frequency welded pipe weld seam according to an embodiment of the present utility model;

[0020] Figure 3 This is a rear view of an intelligent control device for cooling rate of high-frequency welded pipe weld seam according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the surface structure of the cooling pipe in a high-frequency welded pipe weld seam cooling rate intelligent control device according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Support base; 2. Positioning rod; 3. Support plate; 4. Arc-shaped cooling plate; 5. Cooling pipe; 6. Connecting pipe; 7. Booster pump; 8. Blower; 9. Infrared thermometer; 10. Recycling bin; 11. PLC controller; 12. T-joint pipe; 13. Cold water pipe; 14. Solenoid valve one; 15. Water supply pipe; 16. Rubber hose; 17. Air supply pipe; 18. Solenoid valve two; 19. Positioning plate; 20. Positioning hole; 21. Casters; 22. Push frame. Detailed Implementation

[0024] 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.

[0025] According to an embodiment of the present invention, an intelligent control device for the cooling rate of high-frequency welded pipe weld seam is provided.

[0026] Example 1:

[0027] like Figures 1-4As shown, an intelligent control device for cooling rate of high-frequency welded pipe welds according to an embodiment of this utility model includes a rectangular metal support base 1. Two positioning rods 2 are fixedly connected to both sides of the surface of the support base 1. A support plate 3 is fixedly connected to the top of each pair of positioning rods 2. An arc-shaped cooling plate 4 is rotatably connected to the surface of the support plate 3 via a hinge. A cooling pipe 5 is fixedly installed inside the arc-shaped cooling plate 4. A nozzle is installed on the surface of the cooling pipe 5. A connecting pipe 6 is fixedly connected to one end of the cooling pipe 5. By rotating the two arc-shaped cooling plates 4, the two cooling pipes 5 can be connected via a connecting pipe 6. Pipes 6 are interconnected; a booster pump 7 is fixedly installed on one side of the surface of the support base 1 for drawing cooling water; a blower 8 is fixedly installed on one side of the booster pump 7 for blowing outside air onto the weld for air cooling; an infrared thermometer 9 is fixedly installed on one side of the inner wall of the arc-shaped cooling plate 4 for measuring the surface temperature of the weld; a recycling box 10 is fixedly connected to the surface of the support base 1 for recycling the cooling water; a PLC controller 11 is fixedly installed on one side of the recycling box 10, and the PLC controller 11 can intermittently control the booster pump 7 and the blower 8 to perform cooling work.

[0028] like Figures 1-4 As shown, a three-way pipe 12 is fixedly installed at the water inlet of the booster pump 7. One end of the three-way pipe 12 is fixedly connected to the recovery tank 10 for the booster pump 7 to extract the recovered cooling water; the other end is fixedly installed with a cold water pipe 13 for connecting to an external cold water source; solenoid valves 14 are fixedly installed on both sides of the three-way pipe 12 for controlling the opening and closing of both ends of the three-way pipe 12; a water supply pipe 15 is fixedly installed at the water outlet of the booster pump 7; a rubber hose 16 is fixedly connected to one end of the cooling pipes 5 in the two arc-shaped cooling plates 4; the end of the water supply pipe 15 is fixedly connected to one of the rubber hoses 16; and an air supply pipe is fixedly installed at the air outlet of the blower 8. The end of the hose is fixedly connected to another rubber hose 16, which is used to allow the booster pump 7 and the blower 8 to inject cooling water and outside air into the cooling pipe 5 respectively, so as to cool the weld by air and water. A solenoid valve 17 is fixedly installed at one end of the rubber hose 16 to prevent the cooling water in the cooling pipe 5 from flowing back. A positioning plate 18 is fixedly connected to the top of the arc-shaped cooling plate 4. The surface of the positioning plate 18 has positioning holes 19, which are used to fix the two arc-shaped cooling plates 4 together by bolts. Universal wheels 20 are rotatably installed on both sides of the bottom surface of the support base 1. A push frame 21 is fixedly installed on one side of the surface of the support base 1 to facilitate the overall movement of the push device.

[0029] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0030] In summary, with the help of the above-mentioned technical solution of this utility model, in actual use, the two arc-shaped cooling plates 4 cooperate with each other, and the two cooling pipes 5 inside them are connected to each other on the outside of the weld seam of the welded pipe that needs to be cooled. The infrared thermometer 9 monitors the temperature of the weld seam surface. The PLC controller 11 can adjust the operation of the booster pump 7, solenoid valve 14, solenoid valve 2 17 and blower 8 according to the monitored temperature. The recovery box 10 can recover the cooling water after absorbing heat. In the initial stage of cooling, the infrared thermometer 9 detects that the surface temperature of the weld seam is high. The booster pump 7 uses the cold water pipe 13 to draw low-temperature cold water to quickly reduce the temperature of the weld seam. Then, through the solenoid valve 14, the booster pump 7 draws the recovered warm water for gentle cooling. Finally, the booster pump 7 is turned off, and the blower 8 is used to slowly cool the weld seam until it is completely cooled. This multi-stage cooling method can effectively avoid cracking problems caused by excessive cooling speed, while ensuring the quality and mechanical properties of the weld seam.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 high-frequency welded pipe weld cooling rate intelligent control device, characterized in that, The utility model provides a kind of cooling device, including support base (1), the surface both sides of support base (1) are fixedly connected with positioning rod (2), the top of positioning rod (2) is fixedly connected with support plate (3), the surface of support plate (3) is rotatably connected with arc cooling plate (4) by hinge, the inside of arc cooling plate (4) is fixedly installed with cooling pipeline (5), one end of cooling pipeline (5) is fixedly connected with connecting pipe (6), the surface one side of support base (1) is fixedly installed with booster pump (7), the side of booster pump (7) is fixedly installed with air blower (8), the inner wall one side of arc cooling plate (4) is fixedly installed with infrared thermometer (9), the surface of support base (1) is fixedly connected with recovery tank (10), the side of recovery tank (10) is fixedly installed with plc controller (11).

2. The intelligent control device for cooling rate of weld seam of high-frequency welded pipe according to claim 1, characterized in that, The water suction port of booster pump (7) is fixedly installed with three-way pipe (12), one end of three-way pipe (12) is fixedly connected with recovery tank (10), the other end is fixedly installed with cold water pipe (13), the two sides of three-way pipe (12) are fixedly installed with electromagnetic valve one (14).

3. The intelligent control device for cooling rate of weld seam of high-frequency welded pipe according to claim 1, characterized in that, The water outlet of booster pump (7) is fixedly installed with water delivery pipe (15), the one end in the cooling pipeline (5) of two arc cooling plates (4) is fixedly connected with rubber hose (16), the tail end of water delivery pipe (15) is fixedly connected with one of rubber hose (16), the air outlet of air blower (8) is fixedly installed with air supply pipe (17), the tail end of air supply pipe (17) is fixedly connected with another rubber hose (16).

4. The intelligent high-frequency weld pipe weld seam cooling rate regulating device according to claim 1, characterized in that, The one end of rubber hose (16) is fixedly installed with electromagnetic valve two (18).

5. The intelligent high-frequency weld pipe weld seam cooling rate regulating device according to claim 1, characterized in that, The top of arc cooling plate (4) is fixedly connected with positioning plate (19), the surface of positioning plate (19) is opened with positioning hole (20).

6. The intelligent high-frequency weld pipe weld seam cooling rate regulating device according to claim 1, characterized in that, The bottom surface both sides of support base (1) are rotatably installed with universal wheel (21).

7. The intelligent high-frequency weld pipe weld seam cooling rate regulating device according to claim 1, characterized in that, The surface of support base (1) is fixedly connected with push frame (22).

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