A seamless steel pipe heat treatment waste heat recycling device

Abstract

The utility model belongs to the field of energy and energy -conserving technology, concretely is a kind of seamless steel tube heat treatment waste heat recycling device, including assembly station;The assembly station bottom end is fixedly connected with multiple groups of supporting leg frame;The assembly station top is fixedly connected with assembly box;The assembly box inboard wall is symmetrically fixedly connected with multiple groups of fixed sleeve;The fixed sleeve inboard wall is fixedly connected with first electric push rod;The first electric push rod end is fixedly connected with shell;The shell inboard wall is fixedly connected with heat exchange tube group;Through the modularization design of grouping to heat exchanger, can adapt to different diameter width's seamless steel tube, has expanded the applicable range of equipment, simultaneously according to the difference of the waste heat distribution situation generated in the heat treatment process of seamless steel tube, by separately controlling the distance between each group heat exchanger and seamless steel tube, make heat exchange transmission effect obtain the promotion, to improve the adaptability of heat exchanger, and improve heat exchange efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of energy and energy conservation technology, specifically a device for recovering and utilizing waste heat from the heat treatment of seamless steel pipes. Background Technology

[0002] In steel plants, the heat treatment of seamless steel pipes is an important production process that generates a large amount of waste heat. Waste heat recovery and utilization devices can be installed near the seamless steel pipe heat treatment production line to use the recovered waste heat to preheat the steel that is about to enter the heat treatment furnace, thereby improving the thermal efficiency of the heat treatment furnace and reducing fuel consumption.

[0003] After undergoing heat treatment processes such as quenching and tempering, seamless steel pipes carry a large amount of heat. At this time, a heat exchanger comes into surface contact with the seamless steel pipe to collect the heat generated by the seamless steel pipe and transfer it to a heat storage device for recycling.

[0004] Currently, after long-term observation, it has been found that due to the different diameter specifications of seamless steel pipes, a single fixed heat exchanger structure cannot adapt to seamless steel pipes of various diameters and widths. When parameters such as the diameter and temperature of the steel pipe change, it is difficult for a single-structure heat exchanger to adapt effectively, resulting in low heat exchange efficiency. Therefore, in order to address the above problems, a waste heat recovery and utilization device for the heat treatment of seamless steel pipes is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a device for recovering and utilizing waste heat from the heat treatment of seamless steel pipes.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A seamless steel pipe heat treatment waste heat recovery and utilization device of this utility model includes an assembly platform; multiple sets of support legs are fixedly connected to the bottom end of the assembly platform; an assembly box is fixedly connected to the top end of the assembly platform; multiple sets of fixing sleeves are symmetrically fixed to the inner side wall of the assembly box; a first electric push rod is fixedly connected to the inner side wall of the fixing sleeve; a housing is fixedly connected to the end of the first electric push rod; a heat exchange tube assembly is fixedly connected to the inner side wall of the housing; a perforated plate is fixedly connected to the inner side wall of the housing; an inlet and outlet pipe is connected through the inner side wall of the housing; the inlet and outlet pipe is fixedly connected to the heat exchange tube assembly; a hot water storage tank is provided at the top end of the assembly platform; the inlet and outlet pipe is fixedly connected to the hot water storage tank.

[0007] Preferably, the sidewall of the housing has multiple sets of sliding holes; the sliding holes are arranged in a linear array; a positioning block is fixedly connected to the sidewall of the sliding hole; a push rod is slidably connected to the inner sidewall of the positioning block; a connecting plate is fixedly connected to the end of the push rod; multiple sets of fixing sleeves are fixedly connected to the sidewall of the housing; the fixing sleeves and the sliding holes are arranged in the same linear array; a second electric push rod is fixedly connected to the sidewall of the fixing sleeve; the output end of the second electric push rod is fixed to the push rod; the end of the push rod contacts the sprue plate.

[0008] Preferably, the inner sidewall of the assembly box is symmetrically fixed with positioning sleeves; the sidewall of the positioning sleeve is fixed with a cylinder; and the output end of the cylinder is provided with a clamping plate.

[0009] Preferably, the assembly table has fixed blocks symmetrically fixed to its side walls; the fixed blocks have support plates at their ends; and the support plates have placement racks fixed to their side walls.

[0010] Preferably, the side wall of the fixed support block is provided with a sliding groove; spring assemblies are symmetrically fixed to the side wall of the sliding groove; the spring assemblies are fixedly connected to the placement frame; and the placement frame is slidably connected to the side wall of the sliding groove.

[0011] Preferably, the side wall of the placement rack is provided with a high-temperature alloy sheet.

[0012] Preferably, a pressure-dividing support block is fixedly connected to the side wall of the fixed sleeve; the pressure-dividing support block is arranged in a circumferential array; and the pressure-dividing support block is fixedly connected to the assembly box.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides a device for recovering and utilizing waste heat from the heat treatment of seamless steel pipes. Through the installation of a first electric push rod and a housing, and the modular design of grouping heat exchangers, it can adapt to seamless steel pipes of different diameters and widths, thus expanding the applicability of the equipment. At the same time, since the distribution of waste heat generated by the seamless steel pipe during the heat treatment process varies, the distance between each group of heat exchangers and the seamless steel pipe is individually controlled to improve the heat exchange transfer effect, thereby improving the adaptability of the heat exchangers and increasing the heat exchange efficiency.

[0015] This utility model provides a device for recovering and utilizing waste heat from the heat treatment of seamless steel pipes. Through the installation of a second electric push rod and a push rod, and through the installation of a vibration device, the perforated plate in contact with the seamless steel pipe can be vibrated. This reduces the amount of oxide scale, dust and other impurities retained on the perforated plate, and avoids long-term accumulation of impurities that may cause corrosion and wear on the surface of heat exchangers and other equipment, thereby improving the heat transfer effect and increasing the heat exchange efficiency. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a perspective view of the spring assembly in this utility model;

[0020] Figure 3 This is a perspective view of the inlet / outlet pipe in this utility model;

[0021] Figure 4 This is a perspective view of the sliding hole in this utility model.

[0022] Legend:

[0023] 1. Assembly table; 11. Support leg frame; 12. Assembly box; 13. Fixing sleeve; 14. First electric push rod; 15. Housing; 16. Heat exchange tube assembly; 17. Strain plate; 18. Inlet and outlet pipes; 19. Hot water storage tank; 2. Sliding hole; 21. Positioning block; 22. Push rod; 23. Connecting plate; 24. Fixing sleeve frame; 25. Second electric push rod; 3. Positioning sleeve; 31. Cylinder; 32. Clamping plate; 4. Fixing support block; 41. Support plate; 42. Placement rack; 5. Slide groove; 51. Spring assembly; 6. High temperature alloy sheet; 7. Pressure dividing support frame block. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4This utility model provides a device for recovering waste heat from the heat treatment of seamless steel pipes, including an assembly platform 1; characterized in that: multiple sets of support legs 11 are fixedly connected to the bottom end of the assembly platform 1; an assembly box 12 is fixedly connected to the top end of the assembly platform 1; multiple sets of fixing sleeves 13 are symmetrically fixed to the inner side wall of the assembly box 12; a first electric push rod 14 is fixedly connected to the inner side wall of the fixing sleeve 13; a housing 15 is fixedly connected to the end of the first electric push rod 14; a heat exchange tube assembly 16 is fixedly connected to the inner side wall of the housing 15; a drain plate 17 is fixedly connected to the inner side wall of the housing 15; the drain plate 17 is located at the outermost edge of the inner side wall of the housing 15; an inlet and outlet pipe 18 is connected through the inner side wall of the housing 15; the inlet and outlet pipe 18 is fixedly connected to the heat exchange tube assembly 16; a hot water storage tank 19 is provided at the top end of the assembly platform 1; the inlet and outlet pipe 18 is fixedly connected to the hot water storage tank 19; during operation, according to the different diameters and widths of the seamless steel pipes, the two sets of first electric push rods 14 corresponding to each set of housings 15 are activated, and the first electric push rod 14... The pushing and retracting effect of the 4-axis can move the shell 15 horizontally, allowing the baffle 17 to contact the surface of seamless steel pipes with different diameters and widths. This ensures that the heat exchange tube group 16 in each shell 15 is at a suitable distance from the seamless steel pipe. Furthermore, through individual control of each shell 15, the distance between each shell 15 and the seamless steel pipe can be individually controlled according to the heat treatment process and waste heat distribution. This allows each heat exchange tube group 16 to adjust its distance from the seamless steel pipe based on the different amounts of waste heat, achieving more efficient heat transfer. This modular design, by grouping the heat exchangers, can adapt to seamless steel pipes with different diameters and widths, expanding the applicability of the equipment. Simultaneously, by individually controlling the distance between each heat exchanger and the seamless steel pipe, the heat exchange transfer effect is improved, thereby enhancing the adaptability of the heat exchanger and increasing heat exchange efficiency, as the waste heat distribution generated during the heat treatment process of the seamless steel pipe varies.

[0027] Furthermore, such as Figure 4As shown, the sidewall of the housing 15 has multiple sets of sliding holes 2; the sliding holes 2 are arranged in a linear array; a positioning block 21 is fixedly connected to the sidewall of the sliding hole 2; a push rod 22 is slidably connected to the inner sidewall of the positioning block 21; a connecting plate 23 is fixedly connected to the end of the push rod 22; multiple sets of fixing sleeves 24 are fixedly connected to the sidewall of the housing 15; the fixing sleeves 24 and the sliding holes 2 are arranged in the same linear array; a second electric push rod 25 is fixedly connected to the sidewall of the fixing sleeve 24; the output end of the second electric push rod 25 is fixed to the push rod 22; the end of the push rod 22 contacts the stencil plate 17; during operation, the oxide scale on the surface of the seamless steel pipe will fall off during the heat treatment process, and dust and other impurities in the surrounding environment may also adhere to the surface of the stencil plate 17, which will then be discharged during the residual heat recovery process. During the heat exchange process, these impurities accumulate and affect the heat transfer efficiency of the baffle plate 17. To address this, the second electric push rod 25 is periodically activated at a set frequency, causing the push rod 22 to reciprocate and vibrate the lower end of the baffle plate 17. This vibration effectively removes oxide scale, dust, and other impurities from the heat exchanger surface, reducing thermal resistance and facilitating smoother heat transfer. This design, through its vibration device, vibrates the baffle plate in contact with the seamless steel pipe, reducing the accumulation of oxide scale, dust, and other impurities on the baffle plate. This prevents long-term accumulation of impurities from causing corrosion and wear on the surface of the heat exchanger and other equipment, thereby improving heat transfer efficiency and overall heat exchange effectiveness.

[0028] Furthermore, such as Figure 3 As shown, positioning sleeves 3 are symmetrically fixed to the inner sidewall of the assembly box 12; cylinders 31 are fixed to the sidewall of the positioning sleeves 3; clamping plates 32 are provided at the output end of the cylinders 31; during operation, when the seamless steel pipe is transported into the assembly box 12 and wrapped by the housing 15 of the fixed support blocks 4, the symmetrical cylinders 31 on both sides of the assembly box 12 can be activated to drive the clamping plates 32 to wrap and fix the two ends of the seamless steel pipe, thereby improving the stability of the seamless steel pipe. This design, by clamping and fixing the two sides of the seamless steel pipe, can keep the position of the seamless steel pipe in the heat exchanger accurate and stable, thus ensuring that the seamless steel pipe and the heat exchange elements of the heat exchanger maintain a suitable distance, thereby optimizing the heat transfer process and improving the heat exchange efficiency.

[0029] Furthermore, such as Figure 1As shown, the assembly table 1 has fixed blocks 4 symmetrically fixed to its side walls; the fixed blocks 4 have a support plate 41 at their ends; the support plate 41 has a placement rack 42 fixed to its side walls; during operation, when the seamless steel pipe is transported into the assembly box 12, one end of the seamless steel pipe can be placed on the placement rack 42 to support it. At this time, the operator can push the other end of the seamless steel pipe to transport it and push it into the assembly box 12 for waste heat recovery. At the same time, the support structure at the other end can also provide support when the seamless steel pipe is pulled out. This design, through the support devices set at both ends of the assembly box, can provide support when transporting and pulling out the seamless steel pipe, thereby facilitating the operator's transport and pull-out operations and improving the operator's operational convenience.

[0030] Furthermore, such as Figure 2 As shown, the fixed support block 4 has a sliding groove 5 on its side wall; spring assemblies 51 are symmetrically fixed to the side wall of the sliding groove 5; the spring assembly 51 is fixedly connected to the placement frame 42; the placement frame 42 is slidably connected to the side wall of the sliding groove 5; during operation, when the seamless steel pipe is placed on the placement frame 42 for conveying, the weight of the seamless steel pipe can be distributed by the elastic device set at the bottom of the placement frame 42. This design, by elastically setting the placement device when conveying the seamless steel pipe, facilitates the reduction of the force used by the workers when conveying the seamless steel pipe, thereby improving the flexibility and ease of conveying the seamless steel pipe.

[0031] Furthermore, such as Figure 1 As shown, the side wall of the placement rack 42 is provided with a high-temperature alloy sheet 6; during operation, the high-temperature alloy sheet 6, with its high-temperature resistance and smooth surface, can improve the smoothness of conveying and placing seamless steel pipes. This design improves the smoothness of conveying and placing seamless steel pipes by workers through the characteristics of the high-temperature alloy sheet, thereby improving the convenience of operation.

[0032] Furthermore, such as Figure 3 As shown, a pressure-dividing support block 7 is fixedly connected to the side wall of the fixed sleeve 13; the pressure-dividing support block 7 is arranged in a circumferential array; the pressure-dividing support block 7 is fixedly connected to the assembly box 12; during operation, the pressure-dividing support block 7 can support and divide the pressure on the fixed sleeve 13, thereby improving the stability of the fixed sleeve 13. This design reduces the shaking effect generated when the first electric push rod 14 is started by improving the stability of the fixed sleeve 13, thereby improving the fixing stability of the first electric push rod 14.

[0033] Working Principle: Based on the different diameters and widths of the seamless steel pipes, the two sets of first electric push rods 14 corresponding to each set of shells 15 are activated. Through the pushing and retracting effect of the first electric push rods 14, the shells 15 can be moved horizontally, allowing the heat exchanger plate 17 to contact the surface of seamless steel pipes with different diameters and widths. This ensures that the heat exchange tube group 16 within each set of shells 15 is at a suitable distance from the seamless steel pipe. Simultaneously, through individual control of each set of shells 15, the distance between each set of shells 15 and the seamless steel pipe can be individually controlled according to the heat treatment process and waste heat distribution of the seamless steel pipe, thus ensuring that each... The heat exchanger tube assembly 16 adjusts the distance between itself and the seamless steel pipe according to the different amounts of residual heat, thereby achieving more efficient heat transfer. During the heat treatment process, the oxide scale on the surface of the seamless steel pipe will fall off, and dust and other impurities in the surrounding environment may also adhere to the surface of the baffle plate 17. During waste heat recovery, these impurities will continuously accumulate, affecting the heat transfer effect of the baffle plate 17. At this time, by periodically setting a certain frequency to start the second electric push rod 25, the push rod 22 can be pushed to reciprocate, performing a vibration operation on the lower end of the baffle plate 17 at a certain frequency. Through the vibration effect of the baffle plate 17... The system effectively removes scale, dust, and other impurities from the heat exchanger surface, reducing thermal resistance and facilitating smoother heat transfer. When the seamless steel pipe is transported into the assembly box 12 and wrapped by the four sets of housings 15, the symmetrical cylinders 31 on both sides of the assembly box 12 drive the clamping plates 32 to wrap and fix both ends of the seamless steel pipe, thereby improving its stability. When transporting the seamless steel pipe into the assembly box 12, one end can be placed on the placement rack 42 for support. Then, the operator can push the other end of the seamless steel pipe to fix it. The seamless steel pipe is conveyed and pushed into the assembly box 12 for waste heat recovery. At the same time, the support structure at the other end provides support when the seamless steel pipe is pulled out. When the seamless steel pipe is placed on the placement rack 42 for conveying, the weight of the seamless steel pipe can be distributed by the elastic device at the bottom of the placement rack 42. The high temperature alloy sheet 6 has the characteristics of high temperature resistance and smooth surface, which can improve the smoothness of conveying and placing the seamless steel pipe. The pressure-dividing support block 7 can support and divide the pressure on the fixed sleeve 13, thereby improving the stability of the fixed sleeve 13.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A heat treatment waste heat recovery and utilization device for seamless steel pipes, comprising an assembling table (1); characterized in that: The assembly platform (1) has multiple sets of support legs (11) fixedly connected to its bottom end; the assembly platform (1) has an assembly box (12) fixedly connected to its top end; the assembly box (12) has multiple sets of fixing sleeves (13) symmetrically fixedly connected to its inner side wall; the fixing sleeve (13) has a first electric push rod (14) fixedly connected to its inner side wall; the first electric push rod (14) has a housing (15) fixedly connected to its end; the housing (15) has a heat exchange tube assembly (16) fixedly connected to its inner side wall; the housing (15) has a drain plate (17) fixedly connected to its inner side wall; the drain plate (17) is located at the outermost edge of the inner side wall of the housing (15); the housing (15) has an inlet and outlet pipe (18) that are connected through it; the inlet and outlet pipe (18) is fixedly connected to the heat exchange tube assembly (16); the assembly platform (1) has a hot water storage tank (19) fixedly connected to its top end; the inlet and outlet pipe (18) is fixedly connected to the hot water storage tank (19).

2. The apparatus for recovering and utilizing waste heat of a heat treatment of a seamless steel pipe according to claim 1, characterized in that: The housing (15) has multiple sets of sliding holes (2) on its side wall; the sliding holes (2) are arranged in a linear array; a positioning block (21) is fixedly connected to the side wall of the sliding hole (2); a push rod (22) is slidably connected to the inner side wall of the positioning block (21); a connecting plate (23) is fixedly connected to the end of the push rod (22); multiple sets of fixing sleeves (24) are fixedly connected to the side wall of the housing (15); the fixing sleeves (24) and the sliding holes (2) are arranged in the same linear array; a second electric push rod (25) is fixedly connected to the side wall of the fixing sleeves (24); the output end of the second electric push rod (25) is fixed to the push rod (22); the end of the push rod (22) is in contact with the sprue plate (17).

3. The apparatus for recovering and utilizing waste heat of a heat treatment of a seamless steel pipe according to claim 1, characterized in that: The inner sidewall of the assembly box (12) is symmetrically fixed with positioning sleeves (3); the sidewall of the positioning sleeves (3) is fixed with cylinders (31); the output end of the cylinders (31) is provided with clamps (32).

4. The apparatus for recovering and utilizing waste heat of a heat treatment of a seamless steel pipe according to claim 1, characterized in that: The assembly platform (1) has fixed blocks (4) symmetrically fixed to its side walls; a support plate (41) is provided at the end of the fixed block (4); and a placement rack (42) is fixed to the side wall of the support plate (41).

5. The apparatus for recovering and utilizing waste heat of a heat treatment of a seamless steel pipe according to claim 4, characterized by: The fixed support block (4) has a sliding groove (5) on its side wall; spring assemblies (51) are symmetrically fixed to the side wall of the sliding groove (5); the spring assembly (51) is fixedly connected to the placement rack (42); the placement rack (42) is slidably connected to the side wall of the sliding groove (5).

6. The apparatus for recovering and utilizing waste heat of a heat treatment of a seamless steel pipe according to claim 4, characterized by: The side wall of the placement rack (42) is provided with a high-temperature alloy sheet (6).

7. The apparatus for recovering and utilizing waste heat of a heat treatment of a seamless steel pipe according to claim 1, characterized by: The side wall of the fixed sleeve (13) is fixedly connected to a pressure-dividing support block (7); the pressure-dividing support block (7) is arranged in a circular array; the pressure-dividing support block (7) is fixedly connected to the assembly box (12).

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