Welding and clamping device for heat exchanger

Abstract

The utility model discloses a heat exchanger welding clamping device, and particularly relates to the technical field of heat exchanger welding, the heat exchanger welding clamping device comprises a plurality of coiled pipes located in a heat exchanger, a supporting piece is sleeved outside the coiled pipes, the clamping device comprises a detachable clamping support at the edge of the supporting piece, and a rotating adjusting piece is installed on the clamping support. The clamping support is fixedly installed on the edge of the supporting piece through an adjusting piece, a rotatable telescopic mechanism is installed on the surface of the inner side of the clamping support, the other end of the telescopic mechanism extends towards one side of the coiled pipe, and a plurality of positioning plates attached to the coiled pipe are installed at the other end of the telescopic mechanism. According to the coil pipe heat exchanger, the phenomenon that the coil pipe falls off from the supporting piece in the machining process of the coil pipe heat exchanger can be avoided, and the machining efficiency of the heat exchanger and the quality of finished products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger welding, and more specifically, to a heat exchanger welding clamping device. Background Art

[0002] A large number of serpentine tubes are needed in the heat exchanger. The serpentine tubes are welded to the support plates, and the welded serpentine tube bundles are inserted into the header for later use. If the support plates are tilted during welding, it is easy to cause the serpentine tubes to be welded loosely, and it is easy to cause the serpentine tubes to fall off the support plates during the processing of the serpentine tube heat exchanger, resulting in uneven heat and outflow of hot fluid. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a heat exchanger welding clamping device, including a plurality of serpentine tubes located in the heat exchanger, a support plate is provided on the outside of the plurality of serpentine tubes, the clamping device includes a detachable clamping bracket at the edge of the support plate, a rotatable adjusting member is installed on the clamping bracket, the clamping bracket is fixedly installed at the edge of the support plate through the adjusting member, a rotatable telescopic mechanism is installed on the inner surface of the clamping bracket, the other end of the telescopic mechanism extends toward one side of the serpentine tube, and a positioning plate that fits the plurality of serpentine tubes is installed at the other end of the telescopic mechanism.

[0004] In a preferred embodiment, the clamping bracket includes a first clamping plate and a second clamping plate, which are respectively attached to the front and rear sides of the support sheet, and the ends of the first clamping plate and the second clamping plate extend outward for a distance at the edge of the support sheet.

[0005] In a preferred embodiment, two symmetrically arranged limiting rods are installed on the surface of the first clamping plate extending outward, and two penetrating limiting holes are opened on the surface of the second clamping plate extending outward, and the two limiting rods penetrate the second clamping plate from the limiting holes.

[0006] In a preferred embodiment, the adjusting member includes a bearing embedded in the first clamping plate, the bearing is located in the middle of the surface of the first clamping plate extending outward, two limit rods are symmetrically arranged through the bearing, a rotating shaft is inserted in the bearing, and the rotating shaft extends to the other side of the support plate and passes through the second clamping plate.

[0007] In a preferred embodiment, a first spiral tube is installed in the middle of the surface of the second clamping plate extending outward, the rotating shaft passes through the second clamping plate and then passes through the first spiral tube and extends a distance, and a rotating disk is installed at the end of the rotating shaft away from the bearing.

[0008] In a preferred embodiment, the telescopic mechanism includes a telescopic sleeve and a telescopic rod, the telescopic rod is inserted into the telescopic sleeve and moves back and forth in the telescopic sleeve, and a first damping shaft is installed at one end of the telescopic sleeve away from the telescopic rod, and the first damping shaft is fixed to the inner end of the first splint located at the support plate.

[0009] In a preferred embodiment, a second damping shaft is installed at one end of the telescopic rod away from the telescopic sleeve, and the second damping shaft is fixed in the middle of the positioning plate. A positioning strip extending vertically downward is installed at the edge of the positioning plate, and the positioning strip is attached to the surface of the support sheet.

[0010] In a preferred embodiment, a second spiral tube is fixed on the outer wall of the telescopic sleeve near one end of the telescopic rod, a rotating fastening screw is inserted in the second spiral tube, and the inner end of the fastening screw passes through the second spiral tube and fits on the outer wall of the telescopic rod.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model utilizes a positioning plate to calibrate and position the angle between the serpentine tube and the support sheet, so that the welding angle between the serpentine tube and the support sheet is maintained during welding, and the support sheet is prevented from tilting and deviating during the welding process, so as to improve the firmness of the welding between the serpentine tube and the support sheet, and prevent the serpentine tube from falling off the support sheet during the processing of the serpentine tube heat exchanger, thereby improving the processing efficiency of the heat exchanger and the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the utility model from another angle;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model after the two clamping plates move.

[0016] Explanation of the accompanying drawings: 1 serpentine tube, 2 support plate, 3 positioning plate, 4 first clamping plate, 5 second clamping plate, 6 limit rod, 7 bearing, 8 rotating shaft, 9 first screw tube, 10 turntable, 11 telescopic sleeve, 12 telescopic rod, 13 first damping rotating shaft, 14 second damping rotating shaft, 15 positioning strip, 16 second screw tube, 17 fastening screw. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0018] like Figure 1-3 A heat exchanger welding clamping device shown in the figure comprises a plurality of serpentine tubes 1 located in the heat exchanger, a support sheet 2 is sleeved on the outside of the plurality of serpentine tubes 1, the clamping device comprises a detachable clamping bracket at the edge of the support sheet 2, a rotatable adjusting member is installed on the clamping bracket, the clamping bracket is fixedly installed at the edge of the support sheet 2 through the adjusting member, a rotatable telescopic mechanism is installed on the inner surface of the clamping bracket, the other end of the telescopic mechanism extends to one side of the serpentine tube 1, and a positioning plate 3 is installed at the other end of the telescopic mechanism to fit the plurality of serpentine tubes 1;

[0019] On the basis of the above, when the heat exchanger is welded, several serpentine tubes 1 are inserted on the support sheet 2, and the clamping bracket is clamped at the edge of the support sheet 2. The clamping bracket is fixed on the support sheet 2 by the adjusting piece, and then the telescopic mechanism is rotated to drive the positioning plate 3 at the other end of the telescopic mechanism to fit the connection between the serpentine tube 1 and the support sheet 2. The positioning plate 3 is used to calibrate and position the angle between the serpentine tube 1 and the support sheet 2, so that the serpentine tube 1 and the support sheet 2 maintain the welding angle between the two during welding, and avoid the support sheet 2 from tilting and shifting during the welding process, so as to improve the firmness of the welding between the serpentine tube 1 and the support sheet 2, and avoid the serpentine tube 1 from falling off the support sheet 2 during the processing of the serpentine tube 1 heat exchanger, thereby improving the processing efficiency of the heat exchanger and the quality of the finished product.

[0020] The clamping bracket includes a first clamping plate 4 and a second clamping plate 5, which are respectively attached to the front and rear sides of the support sheet 2, and the ends of the first clamping plate 4 and the second clamping plate 5 extend outwards for a distance at the edge of the support sheet 2;

[0021] The first clamping plate 4 and the second clamping plate 5 act on the support sheet 2 respectively, and fit with the support sheet 2 to perform angular positioning of the support sheet 2.

[0022] Two symmetrically arranged limiting rods 6 are installed on the surface of the first clamping plate 4 extending outwards, and two penetrating limiting holes are opened on the surface of the second clamping plate 5 extending outwards, and the two limiting rods 6 penetrate the second clamping plate 5 from the limiting holes;

[0023] The limiting rod 6 cooperates with the limiting hole to connect the first clamping plate 4 and the second clamping plate 5 and limit the angle.

[0024] The adjusting member includes a bearing 7 embedded in the first clamping plate 4, the bearing 7 is located in the middle of the surface of the first clamping plate 4 extending outward, two limit rods 6 are symmetrically arranged through the bearing 7, a rotating shaft 8 is inserted in the bearing 7, and the rotating shaft 8 extends to the other side of the supporting sheet 2 and passes through the second clamping plate 5;

[0025] A first screw tube 9 is installed in the middle of the surface of the second clamping plate 5 extending outward for a section. The rotating shaft 8 passes through the second clamping plate 5 and then passes through the first screw tube 9 and extends for a distance. A rotating disk 10 is installed at the end of the rotating shaft 8 away from the bearing 7.

[0026] On the basis of the above, when installing the clamping bracket, the first clamping plate 4 and the second clamping plate 5 are respectively attached to the edge of the support sheet 2, and the first clamping plate 4 and the second clamping plate 5 are protruded a certain distance from the edge of the support sheet 2. The limiting rod 6 and the first screw tube 9 are partially located on the outside of the support sheet 2, so that the limiting rod 6 passes through the second clamping plate 5 from the limiting hole, and the angle between the first clamping plate 4 and the second clamping plate 5 is limited. Then, the turntable 10 is rotated to drive the rotating shaft 8 to rotate in the bearing 7. The first clamping plate 4 and the second clamping plate 5 are tightened through the first screw tube 9 and the limiting rod 6, and the edge of the support sheet 2 is tightly loaded to achieve fixed installation of the clamping bracket.

[0027] The telescopic mechanism includes a telescopic sleeve 11 and a telescopic rod 12. The telescopic rod 12 is inserted into the telescopic sleeve 11 and moves back and forth in the telescopic sleeve 11. A first damping shaft 13 is installed at one end of the telescopic sleeve 11 away from the telescopic rod 12. The first damping shaft 13 is fixed to the inner end of the first clamping plate 4 located at the support plate 2.

[0028] A second damping shaft 14 is installed at one end of the telescopic rod 12 away from the telescopic sleeve 11, and the second damping shaft 14 is fixed to the middle of the positioning plate 3. A positioning strip 15 extending vertically downward is installed at the edge of the positioning plate 3, and the positioning strip 15 is attached to the surface of the support sheet 2;

[0029] A second spiral tube 16 is fixed on the outer wall of the telescopic sleeve 11 near one end of the telescopic rod 12 , and a rotating fastening screw 17 is inserted in the second spiral tube 16 . The inner end of the fastening screw 17 passes through the second spiral tube 16 and fits on the outer wall of the telescopic rod 12 .

[0030] The telescopic mechanism is rotated on the basis of the above, and the telescopic sleeve 11 is rotated on the first clamping plate 4 through the first damping shaft 13, and then the angle between the positioning plate 3 and the telescopic rod 12 is adjusted through the second damping shaft 14, so that the telescopic rod 12 at the other end moves to the inner side of several serpentine tubes 1, and the fastening screw 17 is rotated to make the telescopic rod 12 move in the telescopic sleeve 11 to adjust the length of the entire telescopic mechanism, and make the positioning plate 3 connected to the end of the telescopic rod 12 through the second damping shaft 14 fit on the outer wall of several serpentine tubes 1, and then use the fastening screw 17 to fix the telescopic rod 12 in the telescopic sleeve 11, so that the position and angle of the positioning plate 3 are fixed, and the positioning plate 3 fits on the serpentine tube 1, adjust the angle between the support sheet 2 and the serpentine tube 1, make the positioning strip 15 fit on the support sheet 2, fix the angle between the support sheet 2 and the serpentine tube 1, and then carry out welding.

[0031] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A heat exchanger welding clamping device, comprising a plurality of serpentine tubes located in the heat exchanger, and a support sheet is sleeved on the outside of the plurality of serpentine tubes, characterized in that: The clamping device includes a detachable clamping bracket at the edge of the support sheet, a rotating adjusting piece is installed on the clamping bracket, the clamping bracket is fixedly installed at the edge of the support sheet through the adjusting piece, a rotatable telescopic mechanism is installed on the inner surface of the clamping bracket, the other end of the telescopic mechanism extends toward one side of the serpentine tube, and a positioning plate that fits with several serpentine tubes is installed at the other end of the telescopic mechanism.

2. A heat exchanger welding clamping device according to claim 1, characterized in that: The clamping bracket includes a first clamping plate and a second clamping plate, which are respectively attached to the front and rear sides of the support sheet, and the ends of the first clamping plate and the second clamping plate extend outwards for a distance at the edge of the support sheet.

3. A heat exchanger welding clamping device according to claim 2, characterized in that: Two symmetrically arranged limiting rods are installed on the surface of the first clamping plate extending outwards, and two penetrating limiting holes are opened on the surface of the second clamping plate extending outwards, and the two limiting rods penetrate the second clamping plate from the limiting holes.

4. A heat exchanger welding clamping device according to claim 2, characterized in that: The adjusting member includes a bearing embedded in the first clamping plate, the bearing is located in the middle of the surface of the first clamping plate extending outward, two limit rods are symmetrically arranged through the bearing, a rotating shaft is inserted in the bearing, and the rotating shaft extends to the other side of the support plate and passes through the second clamping plate.

5. A heat exchanger welding clamping device according to claim 4, characterized in that: A first screw is installed in the middle of the surface of the second clamping plate extending outwards. The rotating shaft passes through the second clamping plate and then passes through the first screw and extends for a distance. A rotating disk is installed at the end of the rotating shaft away from the bearing.

6. A heat exchanger welding clamping device according to claim 2, characterized in that: The telescopic mechanism comprises a telescopic sleeve and a telescopic rod. The telescopic rod is inserted into the telescopic sleeve and moves back and forth in the telescopic sleeve. A first damping shaft is installed at one end of the telescopic sleeve away from the telescopic rod. The first damping shaft is fixed to the inner end of the first clamping plate located at the support sheet.

7. A heat exchanger welding clamping device according to claim 6, characterized in that: A second damping shaft is installed at one end of the telescopic rod away from the telescopic sleeve, and the second damping shaft is fixed to the middle of the positioning plate. A positioning strip extending vertically downward is installed at the edge of the positioning plate, and the positioning strip is attached to the surface of the support sheet.

8. A heat exchanger welding clamping device according to claim 6, characterized in that: A second screw is fixed on the outer wall of the telescopic sleeve near one end of the telescopic rod, a rotating fastening screw is inserted in the second screw, and the inner end of the fastening screw passes through the second screw and fits on the outer wall of the telescopic rod.

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