CN214095717U - Anti-vibration arched cambered surface filler strip for wound tube type heat exchanger - Google Patents
Anti-vibration arched cambered surface filler strip for wound tube type heat exchanger Download PDFInfo
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- CN214095717U CN214095717U CN202022680918.9U CN202022680918U CN214095717U CN 214095717 U CN214095717 U CN 214095717U CN 202022680918 U CN202022680918 U CN 202022680918U CN 214095717 U CN214095717 U CN 214095717U
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- heat exchange
- filler strip
- cambered surface
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Abstract
The utility model discloses a around shock resistance type arch cambered surface filler strip for tubular heat exchanger belongs to chemical industry indirect heating equipment technical field, and it includes a center section of thick bamboo, the outer wall of a center section of thick bamboo is provided with the spacing extension board in a plurality of space, and the mutual overlap joint of the one side that two adjacent spacing extension boards in space are close to each other, the upper surface of the spacing extension board in space is provided with arch cambered surface filler strip, the surface winding of a center section of thick bamboo has the heat exchange tube. The utility model discloses a set up spacing extension board in space, arch cambered surface filler strip and heat exchange tube, the circular arc surface design greatly reduced of arch cambered surface filler strip is in the wearing and tearing of traditional spacing filler strip in space to the heat exchange tube of manufacturing process, arch cambered surface filler strip carries out stamping process at the reverse side of spacing extension board in space simultaneously, its machined surface is not with heat exchange tube surface contact, arch cambered surface filler strip is great with the contact surface of heat exchange tube, thereby make the cutting shear force greatly reduced of contact terminal surface, be difficult for producing the friction cutting to the heat exchange tube, greatly increased the life of heat exchange tube.
Description
Technical Field
The utility model belongs to the technical field of chemical heat exchange equipment, specifically be a shock resistance type arch cambered surface filler strip for coiled tube heat exchanger.
Background
The wound tube type heat exchanger is a heat exchanger with a high-efficiency compact structure, and along with the upsizing of the device, the wound tube type heat exchanger is gradually adopted by petrochemical engineering and other processes due to the characteristics of small heat loss, small volume, compact structure, large heat transfer area, high heat exchange efficiency and the like.
The movement of fluid in the winding tube type heat exchanger is very complex, the interlaced arrangement of the filler strips and the heat exchange tubes can form strong turbulence effect on the shell side medium, the shell side medium can achieve turbulence effect under the condition of lower Reynolds number, the flow velocity and the direction of the fluid are continuously irregularly changed, the heat exchange tubes are under various excitation forces of fluid flow in an uneven force field, and are easy to vibrate, when the frequency of flow-induced vibration is close to the natural frequency of the heat exchange tubes, the heat exchange tubes can strongly vibrate to cause damage of the heat exchange tubes, and the flow-induced vibration can cause the damage of extra pressure loss, noise and heat transfer elements of the heat exchanger, so far, examples of damage of large heat exchangers at home and abroad caused by vibration are rare, the damage degree is very remarkable, the general attention of various countries in the world is paid, and at present, the problem of flow-induced vibration of heat exchanger tube bundles is solved, has become one of the important considerations for heat exchanger designers.
The most core structure of the wound tube type heat exchanger is a space limiting filler strip which has two main functions, wherein the uniformity of arrangement of the heat exchange tubes is ensured by limiting the space position of the heat exchange tubes, the process performance of the heat exchanger is ensured by preventing fluid from flowing in the heat exchanger, and the inherent frequency of the heat exchange tubes is improved by restricting the displacement of the heat exchange tubes, so that the vibration resistance effect is achieved.
The traditional spacing filler strip in space is an L-shaped sawtooth filler strip, and because sawtooth filler strip formula structure as an organic whole, the length to the sawtooth filler strip can't be adjusted, and the position of a plurality of spacing filler strips on the sawtooth filler strip can't be changed, when the heat exchange tube that needs to different specifications is spacing, need to change the sawtooth filler strip of different specifications size, can't satisfy the use of different specifications heat exchange tube when increasing use cost, make its suitability relatively poor.
Traditional spacing filler strip in space is an L type sawtooth pattern filler strip, it can play and improve heat exchange tube natural frequency, but when the flow caused the vibration or when producing the displacement change because expend with heat and contract with cold, because the machined surface directly contacts with the heat exchange tube outer wall, the flank of tooth of its sawtooth pattern can form the cutting to the heat exchange tube, make the heat exchange tube appear breaking, and to the heat exchanger, the buffeting that the air current produced and expend with heat and contract with cold are very general, consequently, traditional L type sawtooth filler strip makes the heat exchange tube appear damaged very easily, thereby greatly reduced heat exchange tube's life.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome prior art's above-mentioned defect, the utility model provides a around tubular heat exchanger utensils anti vibration type arch cambered surface filler strip, it is L type sawtooth pattern filler strip to have solved traditional spacing filler strip in space, when flow causes the vibration or when producing the displacement change because expend with heat and contract with cold, because the machined surface is direct and the contact of heat exchange tube outer wall, the flank of tooth of its sawtooth pattern can form the cutting to the heat exchange tube, make the heat exchange tube appear breaking, reduce the life's of heat exchange tube problem.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a around tubular heat exchanger with anti vibration type arch cambered surface filler strip, includes a center section of thick bamboo, the outer wall of a center section of thick bamboo is provided with the spacing extension board in a plurality of space, and the mutual overlap joint of the one side that two adjacent spacing extension boards in space are close to each other, the upper surface of the spacing extension board in space is provided with arch cambered surface filler strip, the surface winding of a center section of thick bamboo has the heat exchange tube, the heat exchange tube winding is between two adjacent arch cambered surface filler strips, corresponds the one side that two arch cambered surface filler strips are close to each other and the outer wall overlap joint of heat exchange tube, and two slides have been seted up to the right flank that is located the spacing extension board in one side space.
The slide rail has been seted up to the lower surface of slide inner wall, slide rail and slide sliding connection have same slide, the right flank of two slides and the left surface fixed connection of the spacing extension board in opposite side space, and the spacing extension board in a plurality of space links to each other and constitutes single spacing filler strip in space.
As a further aspect of the present invention: the heat exchange tubes are tightly wound on the central cylinder in a staggered manner, so that the transverse and longitudinal distances among the heat exchange tubes of the winding part are unchanged.
As a further aspect of the present invention: the shape of the arched cambered surface filler strip is set to be omega, and the outer wall of the arched cambered surface filler strip is designed to be a cambered surface.
As a further aspect of the present invention: the upper surface of the space limiting support plate is provided with a threaded hole corresponding to the front sliding plate, and a fastening screw rod is connected with the threaded hole in a threaded manner.
As a further aspect of the present invention: the bottom end of the fastening screw rod is in lap joint with the upper surface of the sliding plate, the upper surface of the sliding plate is provided with anti-skidding lines, and the sliding plate is L-shaped.
As a further aspect of the present invention: the arched cambered surface filler strips are obliquely arranged above the space limiting support plate, the arched cambered surface filler strips are arranged in parallel, and two adjacent arched cambered surface filler strips are externally tangent to the outer cambered surface of the heat exchange tube.
(III) advantageous effects
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model arranges the space limiting support plate, the arched cambered surface filler strip and the heat exchange tube, the space limiting filler strip composed of a plurality of space limiting support plates is arranged on the outer wall of the central cylinder, and the heat exchange tube is tightly coiled on the central cylinder in a staggered way, so that the heat exchange tube and two adjacent arched cambered surface filler strips are externally tangent with the outer cambered surface of the heat exchange tube, because the heat exchange tube is tightly bound and rotates on the arched cambered surface filler strip for many times, under the gravity action of the heat exchange tube, the mutual extrusion can be formed between the heat exchange tube and the arched cambered surface filler strip, the arc surface design of the arched cambered surface filler strip greatly reduces the abrasion of the traditional space limiting filler strip to the heat exchange tube in the manufacturing process, simultaneously, the arched cambered surface filler strip is subjected to stamping processing on the reverse side of the space limiting support plate, the processing surface of the arched cambered surface filler strip is not in contact with the surface of the heat exchange tube, the contact surface of the arched cambered surface filler strip and the heat exchange tube is larger, therefore, the cutting shearing force of the contact end surface is greatly reduced, the heat exchange pipe is not easy to generate friction cutting, and the service life of the heat exchange pipe is greatly prolonged.
2. The utility model discloses a terminal surface of arch cambered surface filler strip is "omega" shape, the medium flows the in-process and can follow the intermediate channel of omega face and flow away, be difficult to form the dead zone that flows, improve the heat transfer performance of heat exchange tube, be difficult for increasing the risk of scale deposit, when adjusting the position to the spacing extension board in a plurality of spaces, need twist through the instrument and move fastening screw, when fastening screw breaks away from the slide, can twitch the spacing extension board in space, screw up fastening screw again behind the spacing extension board in adjustment space to suitable position, can accomplish spacing to the spacing extension board in space, thereby can change the distance between two adjacent arch cambered surface filler strips through adjusting the position to the spacing extension board in a plurality of spaces, can satisfy and use the heat exchange tube of different specification sizes, make its suitability stronger when reducing use cost.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a schematic three-dimensional sectional structure of the space limiting support plate of the present invention;
FIG. 3 is an enlarged schematic structural view of the space limiting support plate of the present invention;
fig. 4 is a schematic view of the cross-sectional structure of the spatial limiting support plate in a top view;
in the figure: the heat exchanger comprises a central cylinder 1, a space limiting support plate 2, an arched cambered surface filler strip 3, a heat exchange tube 4, a fastening screw rod 5, a slideway 6, a sliding plate 7, a sliding rail 8 and a threaded hole 9.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a around tubular heat exchanger usefulness anti vibration type arch cambered surface filler strip, including a center section of thick bamboo 1, the outer wall of a center section of thick bamboo 1 is provided with the spacing extension board 2 in a plurality of space, the mutual overlap joint of the one side that two adjacent spacing extension boards 2 in space are close to each other, the upper surface of the spacing extension board 2 in space is provided with arch cambered surface filler strip 3, the surface winding of a center section of thick bamboo 1 has heat exchange tube 4, heat exchange tube 4 twines between two adjacent arch cambered surface filler strips 3, the one side that corresponds two arch cambered surface filler strips 3 and be close to each other overlaps with the outer wall of heat exchange tube 4, two slides 6 have been seted up to the right flank that is located one side spacing extension board 2 in space.
Slide rail 8 has been seted up to the lower surface of slide 6 inner wall, sliding connection has same slide 7 in slide 8 and the slide 6, the right flank of two slides 7 and the left surface fixed connection of the spacing extension board 2 in opposite side space, the spacing extension board 2 in a plurality of space links to each other and constitutes single spacing filler strip in space, thereby through setting up spacing extension board 2 in space, thereby can change the distance between two adjacent arch cambered surface filler strips 3 through adjusting the position to the spacing extension board 2 in a plurality of spaces, can satisfy and use the heat exchange tube 4 of different specifications size.
Specifically, as shown in fig. 1 and 3, the heat exchange tubes 4 are tightly and alternately coiled on the central cylinder 1, so that the transverse and longitudinal distances between the heat exchange tubes 4 at the coiling part are not changed, the arched cambered pad strips 3 are obliquely arranged above the space limiting support plate 2, due to the arrangement of the arched cambered pad strips 3, the arched pad strips 3 are subjected to stamping processing on the reverse side of the space limiting support plate 2, the processing surfaces are not contacted with the surfaces of the heat exchange tubes 4, the contact surfaces of the arched pad strips 3 and the heat exchange tubes 4 are larger, so that the cutting shearing force of the contact end surfaces is greatly reduced, a plurality of arched pad strips 3 are arranged in parallel, two adjacent arched pad strips 3 are circumscribed with the outer cambered surfaces of the heat exchange tubes 4, the arched pad strips 3 are in an omega shape, the outer walls of the arched pad strips are designed to be cambered surfaces, the end surfaces of the arched pad strips 3 are in an omega shape, and can flow away from the middle channels of the omega surfaces in the medium flowing process, be difficult to form the dead zone that flows, improve heat transfer performance of heat exchange tube 4, be difficult for increasing the risk of scale deposit, for the cambered surface design through arch cambered surface filler strip 3, the great reduction of the arc surface design of arch cambered surface filler strip 3 the wearing and tearing of traditional spacing filler strip in space to heat exchange tube 4 in the manufacturing process.
Specifically, as shown in fig. 2 and 3, a threaded hole 9 is formed in the position, corresponding to the front sliding plate 7, of the upper surface of the space limiting support plate 2, a fastening screw 5 is connected to the inner thread of the threaded hole 9, the bottom end of the fastening screw 5 is in lap joint with the upper surface of the sliding plate 7, anti-slip patterns are arranged on the upper surface of the sliding plate 7, the fastening screw 5 is screwed through mutual matching between the fastening screw 5 and the anti-slip patterns, when the fastening screw 5 is separated from the sliding plate 7, the space limiting support plate 2 can be pulled, the fastening screw 5 is screwed after the space limiting support plate 2 is adjusted to a proper position, the space limiting support plate 2 is more stably fixed and limited, the shape of the sliding plate 7 is set to be 'L' -shaped, due to the arrangement of the L-shaped sliding plate 7, the sliding plate 7 can effectively limit the stroke of the space limiting support plate 2, and the separation phenomenon of the space limiting support plates 2 is prevented.
The utility model discloses a theory of operation does:
s1, when the positions of the plurality of space limiting support plates 2 need to be adjusted, the fastening screw 5 needs to be screwed through a tool, when the fastening screw 5 is separated from the sliding plate 7, the space limiting support plates 2 can be pulled, the fastening screw 5 is screwed after the space limiting support plates 2 are adjusted to proper positions, the space limiting support plates 2 can be limited, the space limiting support plates 2 do not move any more, and the adjustment of the distances among the plurality of arched cambered surface cushion strips 3 can be completed;
s2, mounting space limiting filler strips consisting of a plurality of space limiting support plates 2 on the outer wall of a central cylinder 1, and tightly winding the heat exchange tube 4 on the central cylinder 1 in a staggered manner, so that the heat exchange tube 4, two adjacent arched surface filler strips 3 and the outer arc surface of the heat exchange tube 4 are externally tangent, and the heat exchange tube 4 can rotate among the arched surface filler strips 3.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (6)
1. The utility model provides a around tubular heat exchanger is with anti vibration type arch cambered surface filler strip, includes a central section of thick bamboo (1), its characterized in that: the outer wall of the central cylinder (1) is provided with a plurality of space limiting support plates (2), the surfaces, close to each other, of two adjacent space limiting support plates (2) are in lap joint with each other, the upper surfaces of the space limiting support plates (2) are provided with arched cambered surface pad strips (3), the outer surface of the central cylinder (1) is wound with a heat exchange tube (4), the heat exchange tube (4) is wound between the two adjacent arched cambered surface pad strips (3), the surfaces, close to each other, of the two corresponding arched cambered surface pad strips (3) are in lap joint with the outer wall of the heat exchange tube (4), and the right side surface of the space limiting support plate (2) located on one side is provided with two slideways (6);
slide rail (8) have been seted up to the lower surface of slide (6) inner wall, sliding connection has same slide (7) in slide rail (8) and slide (6), the right flank of two slide (7) and the left surface fixed connection of the spacing extension board in opposite side space (2), and the spacing extension board in a plurality of space (2) link to each other and constitute the spacing filler strip in single space.
2. The anti-vibration arched surface filler strip for the coiled tube heat exchanger as claimed in claim 1, wherein: the heat exchange tubes (4) are tightly and alternately wound on the central cylinder (1), so that the transverse and longitudinal distances among the heat exchange tubes (4) of the wound part are unchanged.
3. The anti-vibration arched surface filler strip for the coiled tube heat exchanger as claimed in claim 1, wherein: the shape of the arched cambered surface filler strip (3) is set to be omega, and the outer wall of the arched cambered surface filler strip is designed to be a cambered surface.
4. The anti-vibration arched surface filler strip for the coiled tube heat exchanger as claimed in claim 1, wherein: the upper surface of the space limiting support plate (2) is provided with a threaded hole (9) corresponding to the position of the front sliding plate (7), and a fastening screw rod (5) is connected with the threaded hole (9) in an internal thread mode.
5. The anti-vibration arched surface filler strip for the coiled tube heat exchanger as claimed in claim 4, wherein: the bottom end of the fastening screw rod (5) is in lap joint with the upper surface of the sliding plate (7), the upper surface of the sliding plate (7) is provided with anti-skidding lines, and the sliding plate (7) is L-shaped.
6. The anti-vibration arched surface filler strip for the coiled tube heat exchanger as claimed in claim 1, wherein: the arched cambered surface filler strips (3) are obliquely arranged above the spatial limiting support plate (2), the arched cambered surface filler strips (3) are arranged in parallel, and two adjacent arched cambered surface filler strips (3) are externally tangent to the outer cambered surface of the heat exchange tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022680918.9U CN214095717U (en) | 2020-11-18 | 2020-11-18 | Anti-vibration arched cambered surface filler strip for wound tube type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022680918.9U CN214095717U (en) | 2020-11-18 | 2020-11-18 | Anti-vibration arched cambered surface filler strip for wound tube type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214095717U true CN214095717U (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022680918.9U Active CN214095717U (en) | 2020-11-18 | 2020-11-18 | Anti-vibration arched cambered surface filler strip for wound tube type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214095717U (en) |
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2020
- 2020-11-18 CN CN202022680918.9U patent/CN214095717U/en active Active
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