Pipe fitting thermal aging destressing device

Abstract

The utility model discloses a thermal aging destressing device for pipe fittings, which belongs to the technical field of thermal aging destressing for pipe fittings, and adopts the technical scheme that the thermal aging destressing device comprises a heating furnace and three furnace doors, the front side of the heating furnace is fixedly connected with a support frame, and the top of the support frame is provided with an adjusting mechanism and a fixing mechanism; the rear side of the heating furnace is fixedly communicated with a cooling frame; the adjusting mechanism comprises a first supporting plate, a first adjusting frame, two second supporting plates, six auxiliary pads, a second adjusting frame, six auxiliary columns and a third adjusting frame, and the problems that due to the fact that specifications of existing pipe fittings are different, temperature distribution in a heating furnace may be uneven during heating destressing, and if the cooling speed is too high, the temperature distribution is not uniform are solved. In the prior art, a large temperature gradient can be formed in the pipe fitting, then thermal stress is generated, and the newly generated stress may counteract residual stress eliminated by thermal aging treatment, and even causes the problems of deformation or cracking of the pipe fitting and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe fitting heat aging stress relieving technical field especially relates to a pipe fitting heat aging stress relieving device. BACKGROUND

[0002] The pipe fitting heat aging stress relieving device is a kind of equipment for eliminating residual stress inside pipe fitting.

[0003] The pipe fitting heat melting equipment of most existing, in the process of pipe fitting melting, personnel is usually needed to manually support pipe fitting, and such melting mode is prone to cause pipe fitting melting position to appear damage deviation and the like due to the shaking of personnel hand, thereby leading to the scrap of pipe fitting and unable to use;

[0004] The existing patent (announcement number: CN218857703U) discloses a PPR pipe fitting heat melting welding device, which comprises a bottom plate and a movable frame;A second motor is installed on one side of the movable frame, and the output shaft of the second motor is fixedly connected with a first screw rod at one end, the first screw rod is externally sleeved with two moving plates, the top of the two moving plates is fixedly connected with a docking disc, the docking disc is installed on one side of a fixed plate, and the fixed plate is internally installed with an electric telescopic rod;The PPR pipe fitting heat melting welding device provided by the utility model drives two moving plates to move through the first screw rod by starting the second motor, so that two clamping blocks are brought close to further accurately position and clamp, and then the electric telescopic rod is started to push the two clamping blocks close to clamp and fix the outside of pipe fitting, so as to replace the manual clamping work mode of personnel, improve the overall automation degree of equipment, and reduce the labor intensity of personnel.

[0005] In view of the above problems, the existing patent provides a solution, and the above scheme has certain limitations in use, because the specifications of pipe fittings are different, so that the temperature distribution in the heating furnace may be uneven when heating and stress relieving, and if the cooling speed is too fast, a large temperature gradient will be formed inside the pipe fitting, and then thermal stress will be generated, which may offset the residual stress eliminated by heat aging treatment, or even cause pipe fitting deformation or cracking.

[0006] Therefore, a pipe fitting heat aging stress relieving device is provided. UTILITY MODEL CONTENTS

[0007] The utility model discloses a pipe fitting thermal aging stress relieving device can solve the pipe fitting specification is not one, makes the temperature distribution in the heating stress relieving of heating furnace can exist uneven situation, and if the cooling speed is too fast, the pipe fitting inside can form greater temperature gradient, and then generates thermal stress, and this new stress can offset the residual stress eliminated by thermal aging treatment, even lead to the pipe fitting deformation or cracking problem.

[0008] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a pipe fitting thermal aging stress relieving device, including heating furnace and three furnace door, the front side fixedly connected with support frame of heating furnace, the top of support frame is provided with adjusting mechanism and fixed mechanism, the rear side fixed communication of heating furnace has cooling frame;

[0009] The adjusting mechanism includes first support plate, first adjusting frame, two second support plates, six auxiliary pads, second adjusting frame, six auxiliary columns and third adjusting frame, the opposite side of two first support plates is fixedly connected with the two sides of first adjusting frame respectively, the bottom of first support plate is in contact with the top of second adjusting frame, the two sides of second adjusting frame are fixedly connected with the opposite side of two second support plates respectively, the bottom of second support plate is in contact with the top of third adjusting frame, the bottom of auxiliary pad is in contact with the inside of second adjusting frame and the inside of third adjusting frame respectively, the top of two auxiliary columns is fixedly connected with the bottom of first adjusting frame and the bottom of second adjusting frame respectively, and the bottom of auxiliary column is fixedly connected with the top of auxiliary pad.

[0010] Preferably, the fixed mechanism includes the support block fixedly connected at the bottom of the third adjusting frame, the bottom of the support block is rotatably connected with three rollers, and the surface of the roller is rotatably connected with the top of the support frame.

[0011] Preferably, the inside of the support block is provided with a limiting column, the rear side of the limiting column extends to the inside of the heating furnace and is screw-connected with the inside of the heating furnace, the front side of the limiting column is screw-connected with an adjusting column, and the screw thread on the surface of the adjusting column is a reverse thread.

[0012] Preferably, the top of the support frame is fixedly connected with a fixed frame, the inside of the fixed frame is provided with a limiting slot, and the surface of the adjusting column is in contact with the inside of the limiting slot.

[0013] Preferably, the top of the third adjusting frame is provided with eight hinges, the connecting place of the first support plate and the second adjusting frame is rotatably connected through the hinge, and the connecting place of the second support plate and the third adjusting frame is rotatably connected through the hinge.

[0014] Preferably, the front side of the adjusting column is fixedly connected with a fixing sleeve, the rear side of the fixing sleeve extends to the inside of the limiting groove and is in close contact with the inside of the limiting groove, and the front side of the fixing sleeve is fixedly connected with a handle.

[0015] Preferably, the front side and the rear side of the bottom of the inner wall of the cooling frame are provided with leakage grooves and buffer zones, the bottom of the cooling frame is fixedly connected with a collecting box, and the inside of the cooling frame is provided with a water pipe frame and a ventilation frame.

[0016] Preferably, the rear side of the ventilation frame is fixedly connected with a air supply frame, the surface of the water pipe frame is threadedly connected with two threaded plates, the top of the threaded plate is provided with three screw rods, the bottom plate of the screw rod extends to the inside of the threaded plate and is threadedly connected with the inside of the threaded plate, the opposite sides of the two threaded plates are in close contact with the top and the bottom of the air supply frame respectively, the opposite sides of the ventilation frame and the water pipe frame are both provided with air grooves, and the inside of the air groove is fixedly connected with a filter screen.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1、The auxiliary column drives the first adjusting frame to rotate to a suitable position through the hinge, so that the bottom of the first supporting plate is in contact with the top of the second adjusting frame, and the auxiliary column assists the first adjusting frame through the auxiliary pad.

[0019] 2、The supporting block drives the third adjusting frame to move through the roller, so that the third adjusting frame drives the first adjusting frame to move to the front side of the furnace door through the second adjusting frame, then the handle drives the adjusting column to move through the fixing sleeve, the adjusting column drives the limiting column to move to the inside of the heating furnace for fixation, so that the surface of the fixing sleeve is in close contact with the inside of the limiting groove, and the first adjusting frame is conveniently positioned and transported. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure diagram of the pipe hot aging stress relief device.

[0021] Figure 2 It is a three-dimensional connection schematic diagram of the fixing mechanism in the utility model.

[0022] Figure 3 It is a three-dimensional connection schematic diagram of the adjusting mechanism in the utility model.

[0023] Figure 4 It is a three-dimensional structure schematic diagram of the inside of the cooling frame in the utility model.

[0024] Figure 5 It is a three-dimensional connection schematic diagram of the threaded plate and the air supply frame in the utility model.

[0025] In the figure, 1, heating furnace; 2, adjusting mechanism; 201, first support plate; 202, first adjusting frame; 203, second support plate; 204, auxiliary pad; 205, second adjusting frame; 206, auxiliary column; 207, third adjusting frame; 3, fixing mechanism; 301, support block; 302, limiting column; 303, roller; 304, adjusting column; 305, fixing frame; 306, limiting groove; 4, support frame; 5, furnace door; 6, cooling frame; 7, fixing sleeve; 8, handle; 9, water pipe frame; 10, leakage groove; 11, collection box; 12, buffer area; 13, ventilation frame; 14, air supply frame; 15, screw rod; 16, air groove; 17, filter screen; 18, hinge; 19, threaded plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides technical schemes:

[0028] A pipe fitting thermal aging stress relief device, including heating furnace 1 and three furnace doors 5, the front side of heating furnace 1 is fixedly connected with support frame 4, the top of support frame 4 is provided with adjusting mechanism 2 and fixing mechanism 3, the rear side of heating furnace 1 is fixedly connected with cooling frame 6;

[0029] Adjusting mechanism 2 includes first support plate 201, first adjusting frame 202, two second support plates 203, six auxiliary pads 204, second adjusting frame 205, six auxiliary columns 206 and third adjusting frame 207, the opposite side of two first support plates 201 is fixedly connected with the two sides of first adjusting frame 202 respectively, the bottom of first support plate 201 is in contact with the top of second adjusting frame 205, the two sides of second adjusting frame 205 are fixedly connected with the opposite side of two second support plates 203 respectively, the bottom of second support plate 203 is in contact with the top of third adjusting frame 207, the bottom of auxiliary pad 204 is in contact with the inside of second adjusting frame 205 and the inside of third adjusting frame 207 respectively, the top of two auxiliary columns 206 is fixedly connected with the bottom of first adjusting frame 202 and the bottom of second adjusting frame 205 respectively, the bottom of auxiliary column 206 is fixedly connected with the top of auxiliary pad 204.

[0030] In the embodiment, the two sides of the second adjusting frame 205 are fixedly connected with the sides opposite to the two second supporting plates 203, so that the bottom of the second supporting plate 203 is in contact with the top of the third adjusting frame 207, the second adjusting frame 205 is conveniently supported by the second supporting plate 203 to support and adjust the first adjusting frame 202 by the auxiliary column 206 under the support of the first supporting plate 201, the first adjusting frame 202, the second adjusting frame 205 and the third adjusting frame 207 are conveniently driven to move to the front side of the appropriate furnace door 5 for conveying according to the specifications of the pipe, and different specifications of the pipe are conveniently fully heated and de-stressed.

[0031] Specifically, as shown in Figure 1 , Figure 2 , the fixing mechanism 3 comprises a supporting block 301 fixedly connected to the bottom of the third adjusting frame 207, and three rollers 303 rotatably connected to the bottom of the supporting block 301, and the surfaces of the rollers 303 are rotatably connected to the top of the supporting frame 4.

[0032] Specifically, as shown in Figure 1 , Figure 2 , the supporting block 301 is internally provided with a limiting column 302, the rear side of the limiting column 302 extends to the inside of the heating furnace 1 and is threadedly connected to the inside of the heating furnace 1, and the front side of the limiting column 302 is threadedly connected with an adjusting column 304, and the screw thread on the surface of the adjusting column 304 is reverse.

[0033] Specifically, as shown in Figure 2 , the top of the supporting frame 4 is fixedly connected with a fixed frame 305, the inside of the fixed frame 305 is provided with a limiting groove 306, and the surface of the adjusting column 304 is in contact with the inside of the limiting groove 306.

[0034] In the embodiment, the surfaces of the rollers 303 are rotatably connected to the top of the supporting frame 4, so that the supporting block 301 drives the third adjusting frame 207 to move through the rollers 303, the surface of the adjusting column 304 is in contact with the inside of the limiting groove 306, the limiting column 302 is conveniently moved in the inside of the limiting groove 306 through the adjusting column 304, and the effect of conveniently moving the limiting column 302 is achieved.

[0035] Specifically, as shown in Figure 3 , the top of the third adjusting frame 207 is provided with eight hinges 18, the connection between the first supporting plate 201 and the second adjusting frame 205 is rotatably connected through the hinges 18, and the connection between the second supporting plate 203 and the third adjusting frame 207 is rotatably connected through the hinges 18.

[0036] Specifically, as shown in Figure 2As shown, the front side of the adjusting column 304 is fixedly connected with a fixing sleeve 7, the rear side of the fixing sleeve 7 extends to the inside of the limiting groove 306 and is in close contact with the inside of the limiting groove 306, and the front side of the fixing sleeve 7 is fixedly connected with a handle 8.

[0037] In the embodiment, by rotating the first supporting plate 201 and the second supporting plate 203 through the hinges 18, the first supporting plate 201 and the second supporting plate 203 are respectively rotated and adjusted through the hinges 18 to the first adjusting frame 202 and the second adjusting frame 203, the surface of the fixing sleeve 7 is in close contact with the inside of the limiting groove 306, the fixing sleeve 7 is limited through the limiting groove 306 to the adjusting column 304, and the effect of limiting the limiting column 302 is achieved.

[0038] Specifically, as shown in the figure, Figure 4 As shown, the front side and the rear side of the bottom of the inner wall of the cooling frame 6 are provided with leakage grooves 10 and buffer zones 12, the bottom of the cooling frame 6 is fixedly connected with a collection box 11, and the inside of the cooling frame 6 is provided with a water pipe frame 9 and a ventilation frame 13.

[0039] Specifically, as shown in the figure, Figure 5 As shown, the rear side of the ventilation frame 13 is fixedly connected with a air supply frame 14, the surface of the water pipe frame 9 is threadedly connected with two threaded plates 19, the top of the threaded plate 19 is provided with three screw rods 15, the bottom plate of the screw rod 15 extends to the inside of the threaded plate 19 and is threadedly connected with the inside of the threaded plate 19, and the opposite sides of the two threaded plates 19 are respectively in close contact with the top and the bottom of the air supply frame 14, the opposite sides of the ventilation frame 13 and the water pipe frame 9 are both provided with air grooves 16, and the inside of the air groove 16 is fixedly connected with a filter screen 17.

[0040] In the embodiment, by making the opposite sides of the two threaded plates 19 respectively in close contact with the top and the bottom of the air supply frame 14, the threaded plate 19 is fixedly installed through the water pipe frame 9 to the air supply frame 14, so that the cold air in the air supply frame 14 can assist in cooling the cold water in the water pipe frame 9, and the effect of conveniently and fully cooling the pipe is achieved.

[0041] Working principle: when different specifications of pipe fittings are heated to relieve stress, the auxiliary column 206 drives the first adjusting frame 202 to rotate to the appropriate position through the hinge 18, that is, the bottom of the first supporting plate 201 is in contact with the top of the second adjusting frame 205, so that the auxiliary column 206 can conveniently assist the first adjusting frame 202 through the auxiliary pad 204, then the supporting block 301 drives the third adjusting frame 207 to move through the roller 303, so that the third adjusting frame 207 drives the first adjusting frame 202 to move to the front side of the appropriate furnace door 5, then the handle 8 drives the adjusting column 304 to move through the fixing sleeve 7, and the adjusting column 304 drives the limiting column 302 to move to the inside of the heating furnace 1 for fixation, so that the surface of the fixing sleeve 7 is in close contact with the inside of the limiting groove 306, that is, the first adjusting frame 202 can be conveniently positioned and conveyed, so that the pipe fittings can be heated to relieve stress sufficiently, then the pipe fittings are moved to the buffer area 12, and the cold air in the ventilation frame 13 is used to cool the surface of the pipe fittings, then the cold water in the water pipe frame 9 is used to cool the pipe fittings, so that the cold water in the air supply frame 14 is used to uniformly cool the pipe fittings, solve the problem that due to different specifications of pipe fittings, the temperature distribution in the heating furnace 1 may be uneven when heated to relieve stress, and if the cooling speed is too fast, a large temperature gradient will be formed in the pipe fittings, and then thermal stress will be generated, which can offset the residual stress eliminated by thermal aging treatment, and even cause deformation or cracking of the pipe fittings.

[0042] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipe heat aging stress relief device comprising a heating furnace (1) and three furnace doors (5), characterized in that: The front side of the heating furnace (1) is fixedly connected with a support frame (4), the top of the support frame (4) is provided with an adjusting mechanism (2) and a fixing mechanism (3), and the rear side of the heating furnace (1) is fixedly connected with a cooling frame (6). The adjusting mechanism (2) comprises first support plates (201), a first adjusting frame (202), two second support plates (203), six auxiliary pads (204), a second adjusting frame (205), six auxiliary columns (206) and a third adjusting frame (207), the opposite sides of the two first support plates (201) are fixedly connected with the two sides of the first adjusting frame (202) respectively, the bottom of the first support plate (201) is in contact with the top of the second adjusting frame (205), the two opposite sides of the second adjusting frame (205) are fixedly connected with the two opposite sides of the two second support plates (203) respectively, the bottom of the second support plate (203) is in contact with the top of the third adjusting frame (207), the bottom of the auxiliary pad (204) is in contact with the interiors of the second adjusting frame (205) and the third adjusting frame (207) respectively, the tops of the two auxiliary columns (206) are fixedly connected with the bottom of the first adjusting frame (202) and the bottom of the second adjusting frame (205) respectively, and the bottom of the auxiliary column (206) is fixedly connected with the top of the auxiliary pad (204).

2. A device for thermal stress relief of pipe fittings according to claim 1, characterized in that: The fixing mechanism (3) comprises a support block (301) fixedly connected with the bottom of the third adjusting frame (207), and the bottom of the support block (301) is rotatably connected with three rollers (303), and the surface of the roller (303) is rotatably connected with the top of the support frame (4).

3. A device for thermal stress relief of pipe fittings according to claim 2, characterized in that: The interior of the support block (301) is provided with a limiting column (302), the rear side of the limiting column (302) extends into the interior of the heating furnace (1) and is threadedly connected with the interior of the heating furnace (1), the front side of the limiting column (302) is threadedly connected with an adjusting column (304), and the screw thread on the surface of the adjusting column (304) is reverse.

4. A device for thermal stress relief of pipe fittings according to claim 3, characterized in that: The top of the support frame (4) is fixedly connected with a fixing frame (305), the interior of the fixing frame (305) is provided with a limiting groove (306), and the surface of the adjusting column (304) is in contact with the interior of the limiting groove (306).

5. A device for thermal stress relief of pipe fittings according to claim 1, characterized in that: The top of the third adjusting frame (207) is provided with eight hinges (18), the connecting positions of the first support plate (201) and the second adjusting frame (205) are rotatably connected through the hinges (18), and the connecting positions of the second support plate (203) and the third adjusting frame (207) are rotatably connected through the hinges (18).

6. A tubular member thermal aging stress relief apparatus as defined in claim 4, wherein: The front side of the adjusting column (304) is fixedly connected with a fixing sleeve (7), the rear side of the fixing sleeve (7) extends into the interior of the limiting groove (306) and is in close contact with the interior of the limiting groove (306), and the front side of the fixing sleeve (7) is fixedly connected with a handle (8).

7. A tubular member thermal aging stress relief apparatus as defined in claim 1, wherein: The front side and the rear side of the bottom of the inner wall of the cooling frame (6) are provided with leakage grooves (10) and buffer zones (12), the bottom of the cooling frame (6) is fixedly connected with a collecting box (11), and the inside of the cooling frame (6) is provided with a water pipe frame (9) and a ventilation frame (13).

8. A tubular member thermal stress relief apparatus as defined in claim 7, wherein: The rear side of the ventilation frame (13) is fixedly connected with a air supply frame (14), the surface of the water pipe frame (9) is screw-connected with two threaded plates (19), the top of the threaded plate (19) is provided with three screw rods (15), the bottom plate of the screw rod (15) extends to the inside of the threaded plate (19) and is screw-connected with the inside of the threaded plate (19), the opposite sides of the two threaded plates (19) are respectively in close contact with the top and the bottom of the air supply frame (14), and the opposite sides of the ventilation frame (13) and the water pipe frame (9) are both provided with air grooves (16), and the inside of the air groove (16) is fixedly connected with a filter screen (17).

Images