A heat treatment apparatus for a spherical tank

Abstract

The application relates to the technical field of spherical tank heat treatment, and particularly discloses a heat treatment equipment for a spherical tank, which comprises the spherical tank, a connecting shaft is protrusively arranged on the side wall of the spherical tank, a track ceramic heater is connected to the outer surface of the spherical tank, traction ropes are arranged on the two sides of the ceramic heater, a connecting groove is arranged at one end of the connecting shaft, a connecting shaft is connected to the middle part of the connecting groove, a penetrating shaft is protrusively arranged at one end of the connecting shaft, a winding shaft is sleeved on the side wall of the penetrating shaft, and a connecting nail is connected to one end of the penetrating shaft. The connecting nail in the device is forced to rotate, the traction ropes on the track ceramic heater are synchronously wound and displaced, the track ceramic heater can be synchronously displaced and closely attached to the surface of the spherical tank in the process of being straightened, and no gap is left, so that the heating is uniform.

Description

Technical Field

[0001] This invention relates to the field of heat treatment technology for spherical tanks, and more specifically, to a heat treatment apparatus for spherical tanks. Background Technology

[0002] Heat treatment of spherical tanks refers to the process where, after welding and splicing, spherical tanks still have certain stresses that need to be relieved. By heating the entire spherical tank, these stresses can be effectively eliminated.

[0003] Existing heat treatment methods involve covering the surface of a spherical tank with a tracked ceramic heater, which then heats the outer surface of the tank to relieve stress. However, existing tracked ceramic heaters require a traction rope to be connected to protruding screws on the heated surface of the tank. This requires manual binding and tightening to maintain a taut fit against the tank surface. Manual binding and pulling requires significant force, is difficult to control, and cannot maintain a stable tension. This can lead to gaps between the tracked ceramic heater and the tank surface due to insecure binding. Summary of the Invention

[0004] The purpose of this invention is to provide a heat treatment device for spherical tanks, which solves the problem that when the tracked ceramic heater is tied to the protruding screws on the surface of the spherical tank by a traction rope for straightening and tight fitting, the manual binding is too difficult and the force is hard to control, which makes it easy for the tracked ceramic heater to loosen, resulting in bending and failure to fit the surface of the spherical tank.

[0005] This invention is achieved through the following technical solution: This invention provides a heat treatment device for a spherical tank, including a spherical tank, a connecting shaft protruding from the side wall of the spherical tank, a tracked ceramic heater connected to the outer surface of the spherical tank, traction ropes provided on both sides of the ceramic heater, a connecting groove opened at one end of the connecting shaft, a connecting shaft connected to the middle of the connecting groove, a through shaft protruding from one end of the connecting shaft, a winding shaft sleeved on the side wall of the through shaft, and a connecting nail connected to one end of the through shaft.

[0006] Preferably, the connecting shaft further includes a stop rod, which protrudes from the end of the connecting shaft away from the outer surface of the spherical tank.

[0007] Preferably, a screw is threaded through the middle of one end of the abutment, and the inner wall of the connecting groove is threaded to the side wall of the connecting shaft.

[0008] Preferably, the connecting pin further includes a limiting block, a fitting shaft, and a sliding block. The limiting block protrudes from one side of the connecting pin, the fitting shaft protrudes from one side of the connecting pin, and the sliding block protrudes from both sides of one end of the fitting shaft.

[0009] Preferably, the winding shaft further includes a limiting groove, which is formed on one end face of the winding shaft.

[0010] Preferably, the limiting groove is a plurality of openings on one end face of the winding shaft, and the opening width of the limiting groove is greater than the width of the limiting block.

[0011] Preferably, the connecting shaft further includes a fitting groove and a sliding groove, the fitting groove being formed at one end of the connecting shaft, and the sliding groove being formed on the upper and lower sides of the fitting groove.

[0012] Preferably, the fitting groove mates with the fitting shaft, and one end of the middle part of the fitting groove is connected to one end of the fitting shaft by a spring.

[0013] Preferably, the sliding groove is a groove on the upper and lower sides of the center of the fitting groove that mates with the sliding block.

[0014] The technical solution of the present invention has at least the following advantages and beneficial effects: 1. By applying force to the connecting pins in the device and rotating them, the traction rope on the track ceramic heater is synchronously wound and displaced, so that when the track ceramic heater is straightened, it can be synchronously displaced and closely attached to the surface of the spherical tank without leaving gaps, which would cause uneven heating.

[0015] 2. The device is also equipped with a fitting shaft and a through shaft, which allows the connecting pin to be separated from the winding shaft of the connecting traction rope, so that the connecting pin will not continue to affect the winding of the traction rope, and after winding to the limit, it can continue to move closer and stick to the surface of the spherical tank. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of a partial connection structure of the track ceramic heater of the present invention.

[0018] Figure 3 This is a side view of the spherical tank and the track ceramic heater of the present invention.

[0019] Figure 4 This is a side cross-sectional view of the connecting nail of the present invention.

[0020] Figure 5 For the present invention Figure 4 Enlarged diagram of point A in the middle.

[0021] Figure 6 This is a schematic diagram of the detachable structure of the connecting nail of the present invention.

[0022] Figure 7 This is a schematic diagram of the overall structure of the limiting block of the present invention.

[0023] Reference numerals: 1-Spherical tank, 101-Connecting shaft, 1011-Connecting groove, 1012-Abutting rod, 2-Connecting pin, 201-Limiting block, 202-Matching shaft, 2021-Sliding block, 203-Winding shaft, 2031-Limiting groove, 204-Connecting shaft, 2041-Through shaft, 2042-Matching groove, 2043-Sliding groove, 3-Track ceramic heater, 301-Traction rope. Detailed Implementation

[0024] The following is combined with Figures 1 to 7 The present invention will be described in detail below.

[0025] A heat treatment device for a spherical tank includes a spherical tank 1. A connecting shaft 101 protrudes from the side wall of the spherical tank 1. A tracked ceramic heater 3 is connected to the outer surface of the spherical tank 1. Traction ropes 301 are provided on both sides of the ceramic heater 3. A connecting groove 1011 is opened at one end of the connecting shaft 1011. A connecting shaft 204 is connected to the middle of the connecting groove 1011. A through shaft 2041 protrudes from one end of the connecting shaft 2041. A winding shaft 203 is sleeved on the side wall of the through shaft 2041. A connecting nail 2 is connected to one end of the through shaft 2041.

[0026] First, after the spherical tank 1 is welded and spliced, a connecting shaft 101 is welded to the surface and then a connecting nail 2 is set to connect the traction rope 301 on the track ceramic heater 3, thereby pulling and fixing the track ceramic heater 3 to the surface of the spherical tank 1. The track ceramic heater 3 is heated by contacting the surface of the spherical tank 1, thereby relieving the stress during the welding of the spherical tank 1.

[0027] Furthermore, the connecting shaft 101 also includes a stop rod 1012, which protrudes from one end of the connecting shaft 101 away from the outer surface of the spherical tank 1. A screw is threadedly connected through the middle of one end of the stop rod 1012. The inner wall of the connecting groove 1011 is threadedly matched with the side wall of the connecting shaft 204. The connecting pin 2 also includes a limiting block 201, a fitting shaft 202, and a sliding block 2021. The limiting block 201 protrudes from one side of the connecting pin 2, the fitting shaft 202 protrudes from one side of the connecting pin 2, and the sliding block 2021 protrudes from both sides of one end of the fitting shaft 202. The winding shaft 203 also includes a limiting groove 2031, which is opened on one end face of the winding shaft 203. The limiting groove 2031 has several openings on one end face of the winding shaft 203, and the opening width of the limiting groove 2031 is greater than the width of the limiting block 201.

[0028] Furthermore, the connecting shaft 204 also includes a fitting groove 2042 and a sliding groove 2043. The fitting groove 2042 is formed at one end of the connecting shaft 204, and the sliding groove 2043 is formed on the upper and lower sides of the fitting groove 2042. The fitting groove 2042 cooperates with the fitting shaft 202, and one end of the middle part of the fitting groove 2042 is connected to one end of the fitting shaft 202 through a spring. The sliding groove 2043 is a groove on the upper and lower sides of the middle part of the fitting groove 2042 that cooperates with the sliding block 2021.

[0029] Meanwhile, when the track ceramic heater 3 is connected to the connecting nail 2 for traction and fixation, the traction rope 301 is wound around the winding shaft 203. One side of the connecting nail 2, through the cooperation of the limiting block 201 and the limiting groove 2031, allows the winding shaft 203 to rotate together when the connecting nail 2 is manually rotated, thereby winding the traction rope 301 to tighten and straighten the track ceramic heater 3. At the same time, when the connecting nail 2 rotates, it is connected to the connecting shaft 204 through the fitting shaft 202 at one end, thereby driving the connecting shaft 204 to rotate. The displacement is achieved through the thread matching between the side wall and the inner wall of the connecting shaft 101, thereby driving the winding shaft 203 to also move, pulling the traction rope 301 to one side, so that the track ceramic heater 3 can fit tightly against the outer surface of the spherical tank 1 without gaps, which would cause uneven heating.

[0030] The following is a detailed implementation process of the present invention. First, after the traction rope 301 is connected to the winding shaft 203, the connecting nail 2 is manually controlled to rotate and apply force to wind up the traction rope 301, thereby stretching and straightening both sides of the track ceramic heater 3 to make it more stable and prevent bending. At the same time, when the connecting nail 2 drives the winding shaft 203 to rotate, the connecting nail 2 needs to be pressed with a certain force to make the fitting shaft 202 at one end of the connecting nail 2 contract and move along the fitting groove 2042, so that the limiting block 201 will cooperate with the limiting groove 2031, so that rotating the connecting nail 2 will drive the winding shaft 203 to rotate together.

[0031] Meanwhile, when rotating the connecting pin 2, because the sliding blocks 2021 on both sides of one end of the fitting shaft 202 cooperate with the sliding grooves 2043 on both sides of the inner wall of the fitting groove 2042, rotating the connecting pin 2 will drive the through shaft 2041 to rotate together, thereby causing the connecting shaft 204 to rotate. Because the connecting shaft 204 is threadedly matched with the connecting groove 1011 at one end of the connecting shaft 101, the connecting shaft 204 will move along the connecting groove 1011 when rotating, thereby causing the entire connecting pin 2 to move to one side, driving the traction rope 301 to move closer to the outer surface of the spherical tank 1, so that the track ceramic heater 3 can be tightly attached to the outer surface of the spherical tank while maintaining vertical tautness, without leaving any gaps.

[0032] Meanwhile, after the winding shaft 203 reaches its limit in winding the traction rope 301, the screw at one end of the control lever 1012 rotates to press against the winding shaft 203, preventing the winding shaft 203 from resetting due to the resetting of the traction rope 301. This allows the pressure on the connecting pin 2 to be released, and then one end is reset by the spring in the fitting groove 2042, causing the limiting block 201 on the connecting pin 2 to separate from the limiting groove 2031. At the same time, the sliding block 2021 slides along the sliding groove 2043, so that continued rotation of the connecting pin 2 will only drive the connecting shaft 204 to rotate, thereby displacing it along the connecting groove 1011. This allows the track ceramic heater 3 to continue to be adjusted close to the spherical tank 1, without continuing to wind the traction rope 301.

Claims

1. A heat treatment apparatus for a spherical tank, comprising a spherical tank (1), wherein a connecting shaft (101) is provided protruding from the side wall of the spherical tank (1), a tracked ceramic heater (3) is connected to the outer surface of the spherical tank (1), and traction ropes (301) are provided on both sides of the ceramic heater (3), characterized in that, One end of the connecting shaft (101) is provided with a connecting groove (1011), and a connecting shaft (204) is connected to the middle of the connecting groove (1011). One end of the connecting shaft (204) is provided with a through shaft (2041), and a winding shaft (203) is sleeved on the side wall of the through shaft (2041). One end of the through shaft (2041) is connected with a connecting nail (2).

2. The heat treatment equipment for a spherical tank according to claim 1, characterized in that, The connecting shaft (101) also includes a stop rod (1012), which protrudes from one end of the connecting shaft (101) away from the outer surface of the spherical tank (1).

3. The heat treatment equipment for a spherical tank according to claim 2, characterized in that, The middle of one end of the push rod (1012) is threaded with a screw, and the inner wall of the connecting groove (1011) is threaded to match the side wall of the connecting shaft (204).

4. The heat treatment equipment for a spherical tank according to claim 1, characterized in that, The connecting pin (2) further includes a limiting block (201), a fitting shaft (202), and a sliding block (2021). The limiting block (201) protrudes from one side of the connecting pin (2), the fitting shaft (202) protrudes from one side of the connecting pin (2), and the sliding block (2021) protrudes from both sides of one end of the fitting shaft (202).

5. The heat treatment equipment for a spherical tank according to claim 1, characterized in that, The winding shaft (203) also includes a limiting groove (2031), which is formed on one end face of the winding shaft (203).

6. The heat treatment equipment for a spherical tank according to claim 5, characterized in that, The limiting groove (2031) has several openings on one end face of the winding shaft (203), and the opening width of the limiting groove (2031) is greater than the width of the limiting block (201).

7. The heat treatment equipment for a spherical tank according to claim 1, characterized in that, The connecting shaft (204) also includes a fitting groove (2042) and a sliding groove (2043). The fitting groove (2042) is formed at one end of the connecting shaft (204), and the sliding groove (2043) is formed on the upper and lower sides of the fitting groove (2042).

8. The heat treatment equipment for a spherical tank according to claim 7, characterized in that, The fitting groove (2042) mates with the fitting shaft (202), and one end of the middle part of the fitting groove (2042) is connected to one end of the fitting shaft (202) by a spring.

9. The heat treatment equipment for a spherical tank according to claim 7, characterized in that, The sliding groove (2043) is a groove on the upper and lower sides of the middle part of the fitting groove (2042) that cooperates with the sliding block (2021).

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