CN216758750U

CN216758750U - Fixing device for welding baffle rod in heat exchanger

Info

Publication number: CN216758750U
Application number: CN202123283487.3U
Authority: CN
Inventors: 王云峰; 沈炎; 周海燕; 叶林祥; 余熔廷
Original assignee: ZHEJIANG CHENGTAI CHEMICAL MACHINERY CO Ltd
Current assignee: ZHEJIANG CHENGTAI CHEMICAL MACHINERY CO Ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-17
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to the field of heat exchanger manufacturing, in particular to a fixing device for welding a baffle rod in a heat exchanger. This be used for baffling rod welded fixing device in heat exchanger for it is right with the in-process of baffling rod welding on the baffling circle the baffling rod is fixed and spacing, including brace table and fixed part, be provided with first recess on the brace table, baffling rod one end is arranged in the first recess, the other end is arranged in baffling circle surface, fixed part can with the brace table with the baffling circle is dismantled and is connected. This fixing device passes through brace table and fixed part, makes the baffling rod when the baffling circles the welding, can fix the baffling rod, and restriction baffling rod takes place the displacement, and the position that lets the baffling rod welding circle at the baffling is more accurate.

Description

Fixing device for welding baffle rod in heat exchanger

Technical Field

The utility model relates to the field of heat exchanger manufacturing, in particular to a fixing device for welding a baffle rod in a heat exchanger.

Background

The shell-and-tube heat exchanger is a universal heat exchange device for energy, petroleum, chemical industry, food and other industrial departments, and plays an important role in production. In recent years, with the successive establishment and operation of large-scale industrialized devices, the performance requirements on equipment are higher and higher due to the introduction of new equipment, the research and development of new technologies and the adoption of new processes. The trend of equipment towards clean, low-carbon and efficient development is increasingly obvious, and compared with the most common and most common baffle plate type heat exchanger, a baffle rod heat exchanger in a shell-and-tube heat exchanger has the advantages of good heat transfer effect, good shock resistance, small fluid resistance at a large flow rate and short maintenance and cleaning period, and is widely applied to the heat exchanger with a gas-gas medium. In the course of working at baffling circle, the welding of baffling pole is placed in the assigned position according to the drawing, guarantees the accurate positioning welding of baffling pole, nevertheless in current baffling pole welding process, can exist not fix when welding, and takes place the aversion condition, influences the welding of baffling pole.

Chinese patent CN206378037U a nuclear power station heat exchanger tube bundle supporting structure arranges inside shell and tube heat exchanger, including baffling circle and many baffling rods of both ends welding on the baffling circle to and the horizontal bracing piece with the perpendicular spot welding of baffling rod, wherein, baffling circle, baffling rod, horizontal bracing piece are made by the band steel, stagger 90 degrees between the adjacent baffling circle. The rod baffle among this bearing structure welds when baffling the circle and not fixed, can have the condition of shifting, influences the welding of rod baffle.

SUMMERY OF THE UTILITY MODEL

In view of this, the fixing device for welding the baffle rod in the heat exchanger that this application proposed places one end of the baffle rod firmly on the brace table that is connected with the baffle ring dismantlement during welding to restriction baffle rod takes place the displacement when welding.

The scheme of this application is as follows, this a be arranged in baffling rod welded fixing device in heat exchanger for it is right with the in-process of baffling rod welding on the baffling circle the baffling rod is fixed and spacing, including brace table and fixed part, be provided with first recess on the brace table, baffling rod one end is arranged in the first recess, the other end is arranged in baffling circle surface, fixed part can with brace table with the baffling circle is dismantled and is connected.

Further, the fixing part comprises a first pressing part and a tube plate, the baffle ring is fixedly installed on the upper surface of the tube plate, and the support table is detachably connected with the upper surface of the tube plate through the first pressing part.

Furthermore, the support table is provided with a first through hole, the tube plate is provided with a tube hole, the first pressing piece is provided with a second groove and a protruding piece, the second groove and the protruding piece correspond to the first groove, and the protruding piece penetrates through the first through hole and is inserted into the tube hole.

Furthermore, the baffle ring pressing device further comprises a second pressing piece, wherein a third groove used for placing the baffle rod is formed in the second pressing piece, and the second pressing piece can slide on the baffle rod and finally press on the upper surface of the baffle ring.

Furthermore, the second compresses tightly a lower extreme and is provided with the fourth recess, first compressing tightly is last to be provided with the plug connector along the horizontal direction, the plug connector inserts make in the fourth recess the second compresses tightly the piece and can slide on the plug connector.

Furthermore, the fourth groove is a T-shaped groove, and the plug connector is of a T-shaped structure.

Furthermore, the baffle plate further comprises a pull rod hole and a limiting screw rod, wherein the pull rod hole is formed in the baffle ring and the tube plate, and the limiting screw rod is inserted into the pull rod hole.

Further, the first through hole and the protruding piece are provided with two.

Furthermore, the supporting table and the first pressing piece are provided with two sets and respectively arranged at two ends of the baffle rod, which are close to the two ends.

The utility model provides a baffle rod welded fixing device's beneficial effect in being arranged in heat exchanger: the fixing device for welding the deflection rod in the heat exchanger is characterized in that one end of the deflection rod is placed on the deflection ring during welding, the other end of the deflection rod is placed on the supporting table detachably connected with the deflection ring, and the supporting table is detachably connected with the deflection ring by the fixing component so as to limit the displacement of the deflection rod during welding; this fixing device passes through brace table and fixed part, makes the baffling rod when the baffling circles the welding, can fix the baffling rod, and restriction baffling rod takes place the displacement, and the position that lets the baffling rod welding circle at the baffling is more accurate.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the utility model. For a person skilled in the art, other figures can be derived from these figures without inventive effort.

FIG. 1 is an elevational view of a baffle rod welding fixture for use in a heat exchanger according to the present application;

FIG. 2 is a top view of a rod baffle weld fixture for use in a heat exchanger according to the present application;

FIG. 3 is an elevational view of the tubesheet;

FIG. 4 is an elevational view of the baffle ring;

FIG. 5 is an exploded view of one configuration of the support table, first compression member and second compression member;

FIG. 6 is an exploded view of an alternative construction of the support table, first compression member and second compression member;

in the figure: 1. a baffling ring; 11. a rod baffle; 2. a support table; 21. a first groove; 22. a first through hole; 3. a first pressing member; 31. a second groove; 32. a boss member; 33. a plug-in unit; 4. a second pressing member; 41. a third groove; 42. a fourth groove; 5. a tube sheet; 51. a tube hole; 61. a draw bar hole; 62. a limit screw; 7. and a fixing component.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

Referring to fig. 1 to 6, the present application provides a fixing device for welding rod baffles in a heat exchanger, for fixing and limiting the rod baffles 11 during the process of welding the rod baffles 11 to the baffle ring 1, the fixing device includes a supporting platform 2 and a fixing member 7, the supporting platform 2 is located inside the baffle ring 1, the surface of the supporting platform 2 is provided with a first groove 21, the first groove 21 penetrates the surface of the supporting platform 2 and the cross-sectional shape of the first groove 21 is generally semicircular, the height from the bottom surface of the supporting platform 2 to the bottom of the first groove 21 is equivalent to the height of the baffle ring 1, so that one end of the rod baffle 11 can be stably placed in the first groove 21, while the other end of the rod baffle 11 is welded to the baffle ring 1 and placed on the upper surface of the baffle ring 1, of course, the first grooves 21 can be provided in plurality, and the distance of each first groove 21 is consistent with the distance of the rod baffles 11 drawn on the drawing, therefore, a plurality of baffle rods 11 can be placed in the corresponding first grooves 21 at one time; the fixing component 7 is a component which can detachably connect the support platform 2 and the baffle ring 1, when the baffle rod 11 is welded on the baffle ring 1, the fixing component 7 can fixedly connect the support platform 2 and the baffle ring 1 so as to stably weld the baffle rod 11 on the baffle ring 1 and prevent the baffle rod from moving; after installing a set of rod baffles 11, the fixing part 7 will detach the support platform 2 from the ring baffle 1, slightly raise the ring baffle 1, make the rod baffles 11 placed in the first groove 21 disengage from the first groove 21, so that the support platform 2 can slide on the pipe hole 61 to the next designated position, and put down the raised ring baffle 1, to weld new rod baffles 11, until all rod baffles 11 are welded on the ring baffle 1.

The fixing component 7 can connect the support platform 2 and the baffle ring 1 in a detachable way: the fixing part 7 comprises a first pressing part 3 and a tube plate 5, wherein the baffle ring 1 is fixedly arranged on the upper surface of the tube plate 5, the supporting table is also arranged on the upper surface of the tube plate 5, meanwhile, the supporting table 2 is detachably connected with the upper surface of the tube plate 5 through the first pressing part 3, and the supporting table 2 is arranged between the first pressing part 3 and the tube plate 5.

The support table 2 is provided with a first through hole 22, the tube plate 5 is provided with a plurality of tube holes 51, and the projection of the baffle rod 11 on the tube plate 5 on the baffle ring 1 is arranged at the gap between the tube holes 51 and cannot cover the tube holes 51 under normal conditions, so that the baffle rod 11 is prevented from blocking the tube holes 51, and the heat exchange efficiency is reduced; the first pressing member 3 is provided with a second groove 31 and a protruding member 32 corresponding to the first groove 21, the second groove 31 and the first groove 21 have the same length, number and shape, the protruding member 32 passes through the first through hole 22 and is inserted into the pipe hole 51 of the pipe plate 5, so that the first pressing member 3 is pressed on the support platform 2, the first groove 21 and the second groove 31 cooperate to fix the baffle rod 11, and further the baffle rod 11 is prevented from moving.

When the baffle rods 11 are arranged in the first groove 21 and the second groove 31, if one end of each baffle rod 11, which is far away from the baffle ring 1, is slightly deviated, the whole baffle rod 11 is inconsistent with a set position, the position of each baffle rod 11 is required to be regulated before welding, so that the baffle rod welding device further comprises a second pressing member 4, a third groove 41 for placing the baffle rod 11 is arranged on each second pressing member 4, when verification is carried out, the third groove 41 of each second pressing member 4 is arranged on each baffle rod 11 and is parallel to the support table 2, and then the second pressing member 4 slides in a translation mode from the support table 2 to the side of the upper surface of the nearest baffle ring 1, so that the second pressing member 4 is finally pressed on the upper surface of the baffle ring 1, and the second pressing member 4 is always parallel to the support table 2 in the sliding process, namely, the position regulation of the baffle rods can be carried out; in addition, when the second pressing member 4 presses the upper surface of the baffle ring 1, the end of the baffle rod 11, which is placed on the baffle ring 1, can be pressed and fixed through the third groove 41 in the second pressing member, so that the end of the baffle rod 11, which is close to the baffle ring 1, is prevented from moving during welding.

The lower end of the second pressing piece 4 is provided with a fourth groove 42, the direction of the fourth groove 42 is consistent with the axial direction of the baffle rod 11, the plug piece 33 is arranged on the first pressing piece 3 in the horizontal direction, the plug piece 33 is inserted into the fourth groove 42, so that the second pressing piece 4 can stably slide on the plug piece 33, the fourth groove 42 and the plug piece 33 are arranged before welding when the position of the baffle rod 11 is regulated, and the second pressing piece 4 can more stably slide to one side of the upper surface of the nearest baffle ring 1 from the support platform 2.

The fourth groove 42 is set to be a T-shaped groove, the plug connector 33 is correspondingly set to be a T-shaped structure, the arrangement of the T-shaped groove and the T-shaped structure enables a worker to drive the second pressing piece 4 to tightly press on the surface of the baffle ring 1 only by holding the tail end of the plug connector 33 far away from one side of the first pressing piece 3 and pressing downwards, and because when the downward pressure is applied to the plug connector 33, a 'one' in the T-shaped structure can also apply the downward pressure to a 'one' section bar in the T-shaped groove, the worker does not need to press the second pressing piece 4 close to a welding point during welding, so that the welding process is safer.

The fixing device further comprises pull rod holes 61 and limiting screws 62, wherein the pull rod holes 61 are formed in the baffle rings 1 and the tube plates 5, the number of the pull rod holes 61 of the tube plates 5 and the number of the pull rod holes 61 of the baffle rings 1 are four, and positioning bolts are inserted into the corresponding baffle rings 1 and the pull rod holes 61 of the tube plates 5 so as to fixedly install the baffle rings 1 on the upper surfaces of the tube plates 5; before welding, the limit screw 62 is inserted into two opposite pull rod holes 61, and the connecting line of the two opposite pull rod holes 61 is perpendicular to the baffle rod 11 to be welded.

If only one of the first through hole 22 of the support table 2 and the protrusion 32 of the first pressing member 3 is provided, when the protrusion 32 passes through the first through hole 22 and is inserted into the tube hole 51 of the tube plate 5, the rotation of the support table 2 and the first pressing member 3 around the tube hole 51 at the same time will drive the rod baffle 11 to rotate, and change the position of the rod baffle 11 on the baffle ring 1, which affects the welding of the rod baffle 11, so that the rotation of the support table 2 and the first pressing member 3 in the tube hole 51 should be limited to prevent the rotation of the rod baffle 11.

The mode of restriction brace table 2 and first piece 3 that compresses tightly in tube hole 51 internal rotation can be set up first through-hole 22 and protruding piece 32 into two, and two protruding pieces 32 penetrate two first through-holes 22 respectively and insert corresponding tube hole 51 in, can't take place to rotate when just enabling brace table 2 and first piece 3 that compresses tightly to fix on tube sheet 5 through setting up like this to prevent among the welding process brace table 2 and first rotation that compresses tightly piece 3 and drive the rotation of baffling pole 11.

The mode of restricting the rotation of the support platform 2 and the first pressing member 3 in the pipe hole 51 can also be to provide two sets of support platform 2 and first pressing member 3, and place them at the two ends near the baffle rod 11, so when the support platform 2 and the first pressing member 3 at one end of the baffle rod 11 rotate, the support platform 2 and the first pressing member 3 at the other end of the baffle rod 11 will have the effect of hindering the rotation thereof, thereby preventing the rotation of the baffle rod 11 during welding.

Of course, the first mode and the second mode for limiting the rotation of the support platform 2 and the first pressing member 3 in the pipe hole 51 may be combined, that is, two sets of the first through hole 22 and the protruding member 32 are provided, and two sets of the support platform 2 and the first pressing member 3 are provided and respectively placed at two ends close to the deflection rod 11, so that the rotation of the deflection rod 11 during welding can also be prevented.

The above-described embodiments can be implemented individually or in various combinations, and such variations are within the scope of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like as referred to or as may be referred to in this specification are defined with respect to the configuration shown in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a particular component and are relative terms, and thus may be changed accordingly depending on the position and the state of use of the particular component. Therefore, these and other directional terms should not be construed as limiting terms.

Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A fixing device for welding a baffle rod in a heat exchanger is used for fixing and limiting the baffle rod (11) in the process of welding the baffle rod (11) on a baffle ring (1), and is characterized in that: including brace table (2) and fixed part (7), be provided with first recess (21) on brace table (2), baffling pole (11) one end is arranged in first recess (21), the other end is arranged in baffling circle (1) surface, fixed part (7) can with brace table (2) with baffling circle (1) is dismantled and is connected.

2. The fixing device for welding the baffle rod in the heat exchanger according to claim 1, wherein: fixed part (7) including first compressing tightly piece (3) and tube sheet (5), baffling circle (1) fixed mounting in tube sheet (5) upper surface, brace table (2) pass through first compressing tightly piece (3) with tube sheet (5) upper surface dismantlement is connected.

3. The fixing device for welding the baffle rod in the heat exchanger according to claim 2, wherein: the supporting table (2) is provided with a first through hole (22), the tube plate (5) is provided with a tube hole (51), the first pressing piece (3) is provided with a second groove (31) and a protruding piece (32) corresponding to the first groove (21), and the protruding piece (32) penetrates through the first through hole (22) and is inserted into the tube hole (51).

4. A fixing device for welding a baffle rod in a heat exchanger according to claim 3, wherein: still include the second and compress tightly piece (4), be provided with on the second compresses tightly piece (4) and be used for placing the third recess (41) of baffling pole (11), just the second compresses tightly piece (4) and can slide on baffling pole (11), and finally press the upper surface of baffling circle (1).

5. The fixing device for welding the baffle rod in the heat exchanger according to claim 4, is characterized in that: the second compresses tightly a (4) lower extreme and is provided with fourth recess (42), first compressing tightly is provided with plug connector (33) along the horizontal direction on (3), plug connector (33) insert make in fourth recess (42) the second compresses tightly a (4) and can slide on plug connector (33).

6. A fixing device for welding a baffle rod in a heat exchanger according to claim 5, wherein: the fourth groove (42) is a T-shaped groove, and the plug connector (33) is of a T-shaped structure.

7. A fixing device for welding a baffle rod in a heat exchanger according to claim 3, wherein: still include draw bar hole (61) and spacing screw rod (62), draw bar hole (61) set up in baffling circle (1) with on tube sheet (5), spacing screw rod (62) insert in draw bar hole (61).

8. A fixing device for welding a baffle rod in a heat exchanger according to claim 3, wherein: the first through hole (22) and the protruding piece (32) are provided with two.

9. A fixing device for welding a baffle rod in a heat exchanger according to claim 3, wherein: the supporting table (2) and the first pressing piece (3) are provided with two sets and are respectively arranged at the two ends, close to the deflection rods (11).