Seamless steel tube annealing device

Abstract

The utility model relates to a seamless steel tube annealing device which comprises a base, an electromagnetic heating mechanism and supporting wheels are arranged in the heating box, the electromagnetic heating mechanism comprises a shell, a heat insulation and heat preservation pipe, an electromagnetic heating coil and a fixing base, the two ends of the heat insulation and heat preservation pipe are fixed in the shell through the fixing base, and the heat insulation and heat preservation pipe is arranged in the shell in a suspended mode; the two ends of the shell and the fixing base are each provided with a through hole allowing a pipe to penetrate through, the electromagnetic heating coil is wound around the outer wall of the heat insulation pipe, and the electromagnetic heating coil is connected with the electromagnetic heating controller. A cooling box; wherein the heating box and the cooling box are arranged on the base in an end-to-end connection mode, and the cooling box is located behind the heating box. The heat insulation pipe has the advantages that heat generated by the pipe can be effectively wrapped by the heat insulation pipe, so that heat insulation is achieved, and heat loss is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of annealing equipment, in particular to a seamless steel pipe annealing device. Background Art

[0002] Annealing is a metal heat treatment process in which the metal is heated to a certain temperature, maintained for a sufficient time, and then cooled at an appropriate rate.

[0003] Chinese patent document CN116751938B discloses a high-frequency annealing device, comprising a first bottom shell and a bottom frame, wherein the bottom of the first bottom shell is provided with a bottom groove, and a top shell is installed on the top of the first bottom shell; a second bottom shell is installed on one side of the first bottom shell, and a feeding roller is installed inside the second bottom shell; further, one side of the top shell is connected with one side of the second bottom shell, and a baffle is installed on the inner side of the top shell close to the second bottom shell; further, a first motor is installed on the outer wall of one end of the bottom groove, and the output shaft of the first motor is connected with one end of the screw rod; further, a discharge port is installed at one end of the bottom of the first bottom shell, and the discharge port is connected with the inside of the first bottom shell; two first movable frames are respectively installed at the upper and lower ends of the discharge port, and the two first movable frames are symmetrically distributed about the transverse axis of the discharge port; further, the bottom frame is arranged on one side of the second bottom shell, and a high-frequency module is installed on the top of the bottom frame, and a coil is installed on one side of the high-frequency module.

[0004] The above patent heats the steel pipe by passing it through a coil. However, since the coil is exposed to the outside, part of the heat generated by the steel pipe during heating will be directly dissipated into the air, thereby causing the temperature of the working environment to rise, and causing energy waste and poor insulation effect. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a seamless steel pipe annealing device to solve the above problems.

[0006] The technical solution of the utility model is implemented as follows: a seamless steel pipe annealing device, comprising:

[0007] Base;

[0008] A heating box, wherein an electromagnetic heating mechanism and a supporting wheel are arranged in the heating box, wherein the electromagnetic heating mechanism comprises a shell, a heat-insulating pipe, an electromagnetic heating coil and a fixing seat, wherein both ends of the heat-insulating pipe are fixed in the shell by fixing seats, and the heat-insulating pipe is suspended in the shell, and both ends of the shell and the fixing seat are provided with through holes for the pipe to pass through, and the electromagnetic heating coil is wound on the outer wall of the heat-insulating pipe, and the electromagnetic heating coil is connected to an electromagnetic heating controller;

[0009] Cooling box;

[0010] The heating box and the cooling box are connected at the end and arranged on the base, and the cooling box is located behind the heating box.

[0011] By adopting the above technical scheme, the pipe passes through the heating box, the shell, and the fixing seat in turn and enters the thermal insulation pipe. The pipe is heated by the electromagnetic heating coil wrapped on the outer wall of the thermal insulation pipe. The thermal insulation pipe adopts non-magnetic thermal insulation material. The thermal insulation pipe can effectively wrap the heat generated by the pipe, thereby insulating it and effectively reducing heat loss. The fixed seat can reduce temperature conduction and further improve the insulation effect. The electromagnetic heating coil is wrapped in the shell to effectively protect the electromagnetic heating coil. After passing through multiple electromagnetic heating mechanisms in the heating box, the pipe enters the cooling box for cooling.

[0012] The utility model is further configured as follows: a connecting groove for the end of the heat insulation pipe to be inserted and connected is opened on the inner wall of one end of the fixing seat.

[0013] By adopting the above technical solution, the connection between the fixing seat and the thermal insulation pipe is made more convenient and stable, and no additional connecting parts are required.

[0014] The utility model is further configured as follows: the inner diameter of the fixing seat is not larger than the inner diameter of the heat insulation pipe.

[0015] By adopting the above technical solution, the pipe can enter the thermal insulation pipe from the fixing seat more smoothly and is not easily stuck by the end of the thermal insulation pipe.

[0016] The utility model is further configured as follows: the electromagnetic heating mechanisms are arranged in a plurality along the conveying direction of the pipe in the heating box, and support wheels are arranged between adjacent electromagnetic heating mechanisms.

[0017] By adopting the above technical solution, the support wheel can effectively support the pipe during transportation, thereby preventing the pipe from bending between the electromagnetic heating mechanisms, which would cause unsmooth transportation.

[0018] The utility model is further configured to include:

[0019] A water spray ring pipe, which is arranged in a circular shape and has a water outlet ring channel in the hollow interior, a water inlet interface connected to the water outlet ring channel is arranged on the outer wall of the water spray ring pipe, and a water spray port connected to the water outlet ring channel is opened on the inner side wall of the water spray ring pipe;

[0020] A water distribution pipe, wherein the water distribution pipe is provided with a water inlet and a plurality of water outlets, and the water inlet is connected to an external water source;

[0021] The water inlet interface is connected to the water outlet of the water distribution pipe, the water spray ring pipe is fixed in the cooling box, and the water spray ring pipe is arranged at equal distances along the conveying direction of the pipe, and the central axis of the water spray ring pipe coincides with the central axis of the pipe.

[0022] By adopting the above technical solution, water is transported to each water spray ring pipe through the water distribution pipe, and then sprayed onto the surface of the pipe through the water spray nozzles on the water spray ring pipe, thereby cooling the pipe. The water spray ring pipe can effectively spray the pipe all around, effectively improving the uniformity of the water spray and making the cooling more uniform.

[0023] The utility model is further configured as follows: the center line of the water outlet channel is circular, a vertical line is provided between the center axis of the water spray ring pipe and the center line of the water outlet channel, and an angle is provided between the axis center line of the water spray port and the vertical line.

[0024] By adopting the above technical solution, it is possible to avoid the water sprayed from the water nozzle acting vertically on the surface of the pipe, causing water splashing; the angle setting can make the water sprayed from the water nozzle form an angle with the surface of the pipe, so that the water flows along the conveying direction of the pipe for a distance, extending the contact area and time between the water flow and the pipe, thereby improving the cooling effect.

[0025] The utility model is further configured as follows: the angle is set to 5°-60°.

[0026] By adopting the above technical solution, the contact area and time between the water flow and the pipe can be effectively increased, thereby improving the cooling effect.

[0027] The utility model is further configured as follows: the water outlet direction of the water spray port is inclined toward a side away from the heating box.

[0028] By adopting the above technical solution, water can be effectively prevented from flowing into the heating box.

[0029] The utility model is further configured as follows: a drain port is provided at the bottom of the cooling box.

[0030] By adopting the above technical solution, the water after the pipe is cooled is collected through the drain port and recycled for use after cooling.

[0031] The utility model is further configured as follows: through holes for the pipes to pass through are provided on both ends of the cooling box; a scraper ring is provided in the through hole on the side of the cooling box away from the heating box; the inner diameter of the scraper ring is smaller than the outer diameter of the pipe; the scraper ring is tightly sleeved on the outer wall of the pipe; and the scraper ring is made of flexible material.

[0032] By adopting the above technical solution, the scraper ring can effectively scrape off the residual water on the surface of the pipe after cooling, avoiding bringing the water to the outside and polluting the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0035] Figure 2 for Figure 1 The structural diagram of A in the figure;

[0036] Figure 3 for Figure 1 Schematic diagram of the structure of B;

[0037] Figure 4 for Figure 3 Schematic diagram of the structure of C;

[0038] Figure 5 It is a structural sectional view of the water spray ring pipe in the utility model. DETAILED DESCRIPTION

[0039] 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 of 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.

[0040] like Figure 1-Figure 5 As shown, the utility model discloses a seamless steel pipe annealing device, comprising:

[0041] Base 1;

[0042] A heating box 2, wherein an electromagnetic heating mechanism 20 and a supporting wheel 21 are arranged in the heating box 2, wherein the electromagnetic heating mechanism 20 comprises a shell 200, a heat-insulating tube 201, an electromagnetic heating coil 202 and a fixing seat 203, wherein both ends of the heat-insulating tube 201 are fixed in the shell 200 by the fixing seat 203, and the heat-insulating tube 201 is suspended in the shell 200, and both ends of the shell 200 and the fixing seat 203 are provided with through holes for the pipe to pass through, and the electromagnetic heating coil 202 is wound on the outer wall of the heat-insulating tube 201, and the electromagnetic heating coil 202 is connected to an electromagnetic heating controller;

[0043] Cooling box 3;

[0044] The heating box 2 and the cooling box 3 are connected to each other and arranged on the base 1 , and the cooling box 3 is located behind the heating box 2 .

[0045] By adopting the above technical scheme, the pipe passes through the heating box 2, the shell 200, and the fixed seat 203 in sequence and enters the heat-insulating pipe 201. The pipe is heated by the electromagnetic heating coil 202 wrapped on the outer wall of the heat-insulating pipe 201. The heat-insulating pipe 201 adopts non-magnetic heat-insulating material. The heat-insulating pipe 201 can effectively wrap the heat generated by the pipe, thereby insulating it and effectively reducing heat loss. The fixed seat 203 can reduce the conduction of temperature, further improving the insulation effect, and wrapping the electromagnetic heating coil 202 in the shell 200, effectively protecting the electromagnetic heating coil 202; after passing through the multiple electromagnetic heating mechanisms 20 in the heating box 2, the pipe enters the cooling box 3 for cooling.

[0046] In the embodiment of the utility model, a connection groove 2030 for the end of the heat insulation pipe 201 to be inserted and connected is opened on the inner wall of one end of the fixing seat 203.

[0047] By adopting the above technical solution, the connection between the fixing seat 203 and the heat insulation pipe 201 is more convenient and stable, and no additional connecting parts are required.

[0048] In the embodiment of the utility model, the inner diameter of the fixing seat 203 is not larger than the inner diameter of the thermal insulation pipe 201 .

[0049] By adopting the above technical solution, the pipe can enter the thermal insulation pipe 201 from the fixing seat 203 more smoothly and is not easily stuck by the end of the thermal insulation pipe 201.

[0050] In the embodiment of the utility model, the electromagnetic heating mechanism 20 is arranged in plurality along the conveying direction of the pipe in the heating box 2 , and a supporting wheel 21 is arranged between adjacent electromagnetic heating mechanisms 20 .

[0051] By adopting the above technical solution, the support wheel 21 can effectively support the pipe during transportation, thereby preventing the pipe from bending between the electromagnetic heating mechanisms 20 and causing unsmooth transportation.

[0052] In the embodiment of the utility model, it also includes:

[0053] A water spray ring pipe 30, which is arranged in a circular shape and has a water outlet ring channel 300 in the hollow interior, a water inlet interface 301 connected to the water outlet ring channel 300 is arranged on the outer wall of the water spray ring pipe 30, and a water spray port 302 connected to the water outlet ring channel 300 is opened on the inner side wall of the water spray ring pipe 30;

[0054] A water distribution pipe 31, wherein the water distribution pipe 31 is provided with a water inlet and a plurality of water outlets, and the water inlet is connected to an external water source;

[0055] Among them, the water inlet interface 301 is connected to the water outlet of the water distribution pipe 31, the water spray ring pipe 30 is fixed in the cooling box 3, and the water spray ring pipe 30 is arranged in multiple equal distances along the conveying direction of the pipe. The central axis 30a of the water spray ring pipe 30 coincides with the central axis 4a of the pipe.

[0056] By adopting the above technical solution, water is transported to each water spray ring pipe 30 through the water distribution pipe 31, and then sprayed onto the surface of the pipe through the water spray port 302 on the water spray ring pipe 30, so as to cool the pipe. The water spray ring pipe 30 can effectively spray the pipe around, effectively improving the uniformity of the water spray and making the cooling more uniform.

[0057] In the embodiment of the utility model, the center line 300a of the water outlet channel 300 is circular, a vertical line 30b is provided between the central axis 30a of the water spray ring pipe 30 and the center line 300a of the water outlet channel 300, and the axis line 302a of the water spray port 302 is provided with an angle α relative to the vertical line 30b.

[0058] By adopting the above technical solution, it is possible to avoid the water sprayed from the water nozzle 302 from vertically acting on the surface of the pipe, causing water splashing; the angle α is set to enable the water sprayed from the water nozzle 302 to form an angle with the surface of the pipe, so that the water flows along the conveying direction of the pipe for a distance, extending the contact area and time between the water flow and the pipe, thereby improving the cooling effect.

[0059] In the embodiment of the utility model, the angle α is set to 5°-60°.

[0060] By adopting the above technical solution, the contact area and time between the water flow and the pipe can be effectively increased, thereby improving the cooling effect.

[0061] In the embodiment of the utility model, the water outlet direction of the water spray port 302 is inclined toward the side away from the heating box 2.

[0062] By adopting the above technical solution, water can be effectively prevented from flowing into the heating box 2.

[0063] In the embodiment of the utility model, a drain port 32 is provided at the bottom of the cooling box 3 .

[0064] By adopting the above technical solution, the water after the pipe is cooled flows out through the drain port 32 and is collected, and is circulated for use after cooling.

[0065] In the embodiment of the utility model, through holes for the pipe to pass through are provided on both ends of the cooling box 3. A scraper ring 33 is provided in the through hole on the side of the cooling box 3 away from the heating box 2. The inner diameter of the scraper ring 33 is smaller than the outer diameter of the pipe. The scraper ring 33 is tightly sleeved on the outer wall of the pipe, and the scraper ring 33 is made of flexible material.

[0066] By adopting the above technical solution, the scraper ring 33 can effectively scrape off the residual water on the surface of the pipe after cooling, avoiding bringing the water to the outside and polluting the working environment.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seamless steel pipe annealing device, It is characterized in that include, Base (1); A heating box (2), wherein an electromagnetic heating mechanism (20) and a supporting wheel (21) are arranged in the heating box (2), wherein the electromagnetic heating mechanism (20) comprises a shell (200), a heat-insulating pipe (201), an electromagnetic heating coil (202) and a fixing seat (203), wherein both ends of the heat-insulating pipe (201) are fixed in the shell (200) via the fixing seat (203), wherein the heat-insulating pipe (201) is suspended in the shell (200), and both ends of the shell (200) and the fixing seat (203) are provided with through holes for the pipe to pass through, wherein the electromagnetic heating coil (202) is wound on the outer wall of the heat-insulating pipe (201), and wherein the electromagnetic heating coil (202) is connected to an electromagnetic heating controller; Cooling box (3); The heating box (2) and the cooling box (3) are connected at the ends and arranged on the base (1), and the cooling box (3) is located behind the heating box (2).

2. A seamless steel pipe annealing device according to claim 1, It is characterized in that A connection groove (2030) for the end of the heat insulation pipe (201) to be inserted and connected is provided on the inner wall of one end of the fixing seat (203).

3. A seamless steel pipe annealing device according to claim 1, It is characterized in that The inner diameter of the fixing seat (203) is not greater than the inner diameter of the heat insulation pipe (201).

4. A seamless steel pipe annealing device according to claim 1, It is characterized in that The electromagnetic heating mechanisms (20) are arranged in plurality in the heating box (2) along the conveying direction of the pipe, and support wheels (21) are arranged between adjacent electromagnetic heating mechanisms (20).

5. A seamless steel pipe annealing device according to claim 1, It is characterized in that Also includes: A water spray ring pipe (30), the water spray ring pipe (30) is arranged in a circular ring shape and has a water outlet ring channel (300) in a hollow interior, a water inlet interface (301) connected to the water outlet ring channel (300) is provided on the outer wall of the water spray ring pipe (30), and a water spray port (302) connected to the water outlet ring channel (300) is opened on the inner side wall of the water spray ring pipe (30); A water distribution pipe (31), wherein the water distribution pipe (31) is provided with a water inlet and a plurality of water outlets, and the water inlet is connected to an external water source; The water inlet interface (301) is connected to the water outlet of the water distribution pipe (31), the water spray ring pipe (30) is fixed in the cooling box (3), and a plurality of the water spray ring pipes (30) are arranged at equal distances along the conveying direction of the pipe, and the central axis (30a) of the water spray ring pipe (30) coincides with the central axis (4a) of the pipe.

6. A seamless steel pipe annealing device according to claim 5, It is characterized in that The center line (300a) of the water outlet annular channel (300) is circular, a vertical line (30b) is provided between the center axis (30a) of the water spraying annular pipe (30) and the center line (300a) of the water outlet annular channel (300), and an angle (α) is provided between the axis line (302a) of the water spraying port (302) and the vertical line (30b).

7. A seamless steel pipe annealing device according to claim 6, It is characterized in that The angle (α) is set to 5°-60°.

8. A seamless steel pipe annealing device according to claim 5, It is characterized in that The water outlet direction of the water spray port (302) is inclined toward a side away from the heating box (2).

9. A seamless steel pipe annealing device according to claim 1, It is characterized in that The bottom of the cooling box (3) is provided with a drainage port (32).

10. A seamless steel pipe annealing device according to claim 6, It is characterized in that Through holes for the pipe to pass through are provided at both ends of the cooling box (3); a scraper ring (33) is provided in the through hole on the side of the cooling box (3) away from the heating box (2); the inner diameter of the scraper ring (33) is smaller than the outer diameter of the pipe; the scraper ring (33) is sleeved tightly on the outer wall of the pipe; and the scraper ring (33) is made of a flexible material.

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