CN212806667U

CN212806667U - Tube heat exchanger connected in sections

Info

Publication number: CN212806667U
Application number: CN202021709805.0U
Authority: CN
Inventors: 唐聚园; 邵松; 孟玥
Original assignee: Luoyang Ruichang Environmental Engineering Co ltd
Current assignee: Luoyang Ruichang Environmental Engineering Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-03-26
Anticipated expiration: 2030-08-17

Abstract

The utility model provides a tubular heat exchanger of section connection, the heat exchanger includes two tube sheets, two be provided with a plurality of heat exchange tubes between the tube sheet, the heat exchange tube includes two at least heat exchange tube sections, connect through the connecting piece between the heat exchange tube section, form the heat exchange tube, the connecting piece is used for realizing non-welded connection between the heat exchange tube section. The utility model discloses in utilize flexible connecting piece to couple together shorter heat exchange tube to can assemble into the heat exchanger fast conveniently, the connecting piece does not need the welding when connecting, avoids welding the heat exchange tube of constituteing to appear weld crack easily, warp or cracked risk, simultaneously through the setting of the supporting component that support bar and support ring are constituteed for it is right under the condition that does not influence the heat transfer medium and passes through the heat exchange tube provides sufficient support, has ensured the security of product, the utility model discloses simple structure has shortened the equipment time of heat exchanger greatly.

Description

Tube heat exchanger connected in sections

Technical Field

The utility model relates to a heat exchanger technical field particularly, relates to a tubular heat exchanger of section connection.

Background

The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied. The tubular heat exchanger (also called shell-and-tube, shell-and-tube) is the most typical dividing wall type heat exchanger, and has a long history in industrial application, and still has the dominance in all heat exchangers till now, two fluids exchanging heat in the tubular heat exchanger, one fluid flows in the tube, and the stroke is called as tube pass; the tube flows outside the tube, the stroke is called shell side, and the wall surface of the tube bundle is the heat transfer surface.

In prior art, when the heat exchange tube is longer, the equipment of heat exchanger often is more difficult, and when one of them heat exchange tube damaged, it is also more troublesome to change, and in addition, current longer heat exchange tube is mostly formed through a plurality of heat exchange tube sections welded connection that are shorter, and welding part toughness is relatively poor, appears crackle or breaks easily in installation or transportation, influences the normal use of heat exchanger.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem is, when the heat exchange tube is longer, the equipment of heat exchanger is more difficult, and current longer heat exchange tube is mostly formed through a plurality of shorter heat exchange tube section welded connection, and welding position toughness is relatively poor, breaks easily in installation or transportation, influences the normal use of heat exchanger.

In order to solve the problem, the utility model provides a tubular heat exchanger of section connection, the heat exchanger includes two tube sheets, two be provided with a plurality of heat exchange tubes between the tube sheet, the heat exchange tube includes two at least heat exchange tube sections, connect through the connecting piece between the heat exchange tube section, form the heat exchange tube, the connecting piece is used for realizing non-welded connection between the heat exchange tube section.

The heat exchange tube sections are connected in a non-welding mode, the situation that welding cracks, deformation or welding line fracture easily occur among the heat exchange tubes connected in a welding mode in the prior art is avoided, the safety is better, and meanwhile the assembling efficiency of the heat exchanger is improved.

Furthermore, the connecting piece includes a sleeve joint part and a plug joint part, and the centers of the sleeve joint part and the plug joint part are through holes.

This setting can realize the high-speed joint of heat exchange pipe section, and simultaneously, the tube head of two heat exchange pipe sections of interconnect does not contact, consequently also need not both welded fastening, can obtain good sealed effect equally, has avoided the condition of common welding crack, deformation or welding seam fracture in the heat exchange tube welding.

Further, the connecting piece is made of flexible materials and/or heat shrinkage materials.

The connecting piece made of the flexible material can effectively resist impact, so that the heat exchange tube cannot be easily broken when being subjected to external force, heat exchange media cannot leak, the use safety of the heat exchanger is greatly improved, the connecting piece made of the heat shrinkage material can be used for completing quick sealing between the connecting piece and the heat exchange tube section through heating during assembly, and a good sealing effect is obtained under the condition that a tube head of the heat exchange tube section is not required to be welded and fixed.

Furthermore, the heat exchanger still includes at least one supporting component, supporting component includes support bar and support ring, the support bar is used for providing the support, the support ring is used for the heat exchange tube passes, the support bar with there is the clearance between the support ring for the circulation of shell side medium.

The supporting component is used for supporting the heat exchange tube to prevent longer heat exchange tube from deforming under the condition of dead weight, and then breaking, improving the safety in use of the heat exchanger, simultaneously, the setting in clearance between support bar and the support ring makes the supporting component does not influence the circulation of shell side medium at the heat exchanger during operation, ensures the normal work of heat exchanger.

Furthermore, one side of the supporting bars is provided with a plurality of open grooves, the open grooves are used for meshing among the supporting bars, and/or the open grooves are used for meshing with the supporting rings.

Work as when the open slot is used for the meshing between a plurality of support bars, the support bar can form stable braced frame is last to set up the support ring and can form supporting component, works as the open slot with when the support ring meshing, the support ring can be made by a plurality of ring body integrated into one piece's structure, the support bar is used for the reinforcing the support intensity of support ring, the simple structure of support bar, the compound mode is various, can satisfy multiple supporting component's equipment demand.

Further, the support ring includes annular main part be provided with the ring body on the annular main part and support, the ring body support be used for with the support bar is connected.

The ring body supports for platelike structure, and is a plurality of the ring body support with the support bar is connected and is formed firm supporting component, the setting that the ring body supported makes the support ring with have enough big clearance between the support bar, is ensuring supporting component's support intensity simultaneously, can not influence the circulation of shell side medium.

Furthermore, the supporting bars are also provided with connecting holes which are used for connecting the supporting rings.

The connecting hole runs through or does not run through the setting, the mode of support ring accessible grafting is fixed on the connecting hole, cooperates the braced frame that the meshing formed between a plurality of support bars, forms firm supporting component, and this setting makes the support ring is in the braced frame that the support bar formed, the outward appearance is level and smooth, and the structure is firm.

Furthermore, the ring body supports the tip and is provided with connecting portion, connecting portion with the connecting hole cooperation sets up, be used for with the support ring sets up on the support bar.

Connecting portion for the ring body supports the shrink setting, promptly connecting portion support the size for the ring body less, under this condition, work as connecting portion with during the connecting hole cooperation sets up, the tip that the ring body supported with the support bar butt is accomplished spacingly, is favorable to the fast assembly setting of support ring.

Furthermore, the support ring is formed by combining ring strips, each ring strip is provided with a plurality of semi-ring grooves, and adjacent semi-ring grooves are connected through straight sections.

Specifically, when the heat exchange tube heat exchanger is assembled, the heat exchange tube which needs to be arranged can be placed on the semi-ring groove, then the heat exchange tube is covered with another ring strip, and the heat exchange tube heat exchanger can be assembled, so that the assembling time of the heat exchanger is greatly shortened, and the production efficiency is improved.

Furthermore, a connecting structure is arranged on the straight section and used for fixedly connecting the two ring strips.

The connecting structure can enhance the strength of the support ring, is favorable for improving the support strength of the support assembly, and improves the safety of the heat exchanger.

Compared with the prior art, the tubular heat exchanger of section connection have following advantage: the utility model discloses in utilize flexible connecting piece to couple together shorter heat exchange tube to can assemble into the heat exchanger fast conveniently, overcome the technical problem of longer heat exchange tube equipment difficulty among the prior art, the connecting piece that this application provided does not need the welding when connecting, avoids welding the heat exchange tube of constituteing to appear weld crackle or cracked risk easily, and the setting of the supporting component who constitutes through support bar and support ring simultaneously makes it right under the condition that does not influence heat transfer medium and passes through the heat exchange tube provides sufficient support, has avoided the heat exchange tube to take place the risk of warping at the operation in-process, has ensured the heat exchange efficiency of product, and supporting component's simple structure, it is easy and simple to handle, shortened the equipment time of heat exchanger greatly, and ensured the heat exchange efficiency of heat exchanger.

Drawings

Fig. 1 is a schematic structural diagram of a tube heat exchanger connected in sections according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a tube heat exchanger according to an embodiment of the present invention;

FIG. 3 is a partial enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram of a connecting member according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a supporting bar according to an embodiment of the present invention;

fig. 6 is a schematic view of a support strip assembly according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of the support ring according to embodiment 1 of the present invention;

fig. 8 is a schematic structural diagram of the support ring according to embodiment 2 of the present invention;

fig. 9 is a schematic structural view of the support ring according to embodiment 2 of the present invention formed integrally;

fig. 10 is a schematic structural view of a support ring strip according to embodiment 3 of the present invention;

FIG. 11 is a partial enlarged view of portion B of FIG. 10;

fig. 12 is a schematic structural view of a support ring assembly according to embodiment 3 of the present invention;

fig. 13 is a schematic structural diagram of the support assembly according to the embodiment of the present invention.

Description of reference numerals:

1. a heat exchanger; 2. a tube sheet; 3. a support assembly; 301. a supporting strip; 3011. an open slot; 3012. connecting holes; 302. a support ring; 3021. a ring body support; 3022. a connecting portion; 3023. a straight section; 3024. a plug-in unit; 3024a, plug-in posts; 3024b, a clip portion; 3025. inserting holes; 3026. a semi-ring groove; 4. A heat exchange pipe; 5. a connecting member; 501. a socket joint part; 502. a plug-in part; 6. a ring body assembly.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting of the invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The following specifically describes a tubular heat exchanger connected in sections according to an embodiment of the present invention with reference to the drawings.

Example 1

The embodiment provides a tube heat exchanger connected in segments, as shown in fig. 1 to 3, the heat exchanger 1 includes two tube plates 2, a plurality of heat exchange tubes 4 are disposed between the two tube plates 2, each heat exchange tube 4 includes at least two heat exchange tube segments, the heat exchange tube segments are fixedly connected by a connecting piece 5 to form a heat exchange tube 4, the connecting piece 5 can realize non-welded connection between the heat exchange tube segments, the non-welded connection between the heat exchange tube segments is realized by the arrangement, under the condition that the assembly difficulty of the heat exchanger 1 is greatly reduced, the risk that a welded heat exchange tube 4 is easy to have weld cracks or fracture is avoided, the service life of the heat exchanger 1 is prolonged, specifically, in the embodiment, the heat exchange medium in the heat exchange tube 4 is a tube side medium, and the heat exchange medium outside the heat exchange tube 4 is a shell side medium, the heat exchanger 1 may be provided with a shell or not, when the heat exchanger 1 is provided with the shell, the shell inlet and the shell outlet need to be arranged on the shell, at this time, the shell medium may be liquid or gas, and when the heat exchanger 1 is not provided with the shell, the shell medium is gas.

In this embodiment, as shown in fig. 4, the connector 5 includes a socket 501 and a socket 502, the centers of the socket joint part 501 and the plug joint part 502 are through holes, specifically, the outer diameter of the socket joint part 501 is matched with the inner diameter of the heat exchange tube section, the inner diameter of the plug joint part 502 is matched with the outer diameter of the heat exchange tube section, when in connection, one heat exchange pipe section is sleeved on the sleeve joint part 501, the other heat exchange pipe section is inserted into the insertion part 502, the two heat exchange pipe sections are connected through the arrangement of the connecting piece 5, the arrangement can realize the quick connection of the heat exchange pipe sections, and simultaneously, the pipe heads of the two heat exchange pipe sections which are connected with each other are not contacted, therefore, the two are not required to be welded and fixed, a good sealing effect can be obtained, and common welding cracks, deformation or welding line fracture in the welding of the heat exchange tube are avoided.

In the embodiment, the connecting member 5 is made of a flexible material and/or a heat shrinkable material, specifically, the connecting member 5 made of the flexible material can effectively resist impact, so that the heat exchange tube 4 is not easily broken when being subjected to an external force, a heat exchange medium therein does not leak, the use safety of the heat exchanger 1 is greatly improved, the connecting member 5 made of the heat shrinkable material can complete quick sealing between the connecting member 5 and the heat exchange tube section by heating during assembly, thereby obtaining a good sealing effect, a tube head of the heat exchange tube section does not need to be welded and fixed, the connecting member 5 made of one or both of the above two materials can save a large amount of time during assembly, improve the safety of the heat exchange tube 4 and improve the assembly efficiency of the heat exchanger 1, preferably, when the connecting member 5 is made of the flexible material, the connecting piece 5 and the heat exchange tube section interference fit, this be provided with do benefit to further promotion the leakproofness of heat exchange tube 4 ensures the safety in utilization of heat exchanger 1.

Specifically, as shown in fig. 1, fig. 2 and fig. 13, the heat exchanger 1 further includes at least one supporting assembly 3, the supporting assembly 3 includes a supporting strip 301 and a supporting ring 302, the supporting strip 301 is used for providing support, the supporting ring 302 is used for the heat exchange tube 4 to pass through, a gap exists between the supporting strip 301 and the supporting ring 302 for circulation of shell side media, the supporting assembly 3 is used for supporting the heat exchange tube 4 to prevent the longer heat exchange tube 4 from deforming under the condition of self weight and further breaking, so as to improve the safety of the heat exchanger 1, and meanwhile, the gap between the supporting strip 301 and the supporting ring 302 is arranged so that the supporting assembly 3 does not affect the circulation of the shell side media when the heat exchanger 1 works, thereby ensuring the normal work of the heat exchanger 1.

In this embodiment, as shown in fig. 5 and 6, one side of the supporting bar 301 is provided with a plurality of opening slots 3011, the opening slot 3011 is used for the engagement between a plurality of supporting bars 301, and/or, the opening slot 3011 is used for with the engagement of supporting ring 302, it is concrete, when the opening slot 3011 is used for the engagement between a plurality of supporting bars 301, the supporting bar 301 can form stable braced frame, set up supporting ring 302 on the braced frame and can form supporting component 3, when the opening slot 3011 with when the supporting ring 302 is engaged, the supporting ring 302 can be made into the structure by a plurality of ring body integrated into one piece, the supporting bar 301 is used for strengthening the support intensity of supporting ring 302, the simple structure of supporting bar 301, the combination mode is various, can satisfy the equipment demand of multiple supporting component 3.

Specifically, as shown in fig. 8 and 9, the support ring 302 includes an annular main body, a ring support 3021 is disposed on the annular main body, the ring support 3021 is configured to be connected to the support bar 301, in this embodiment, the ring support 3021 is a plate-shaped structure, a plurality of ring supports 3021 are connected to the support bar 301 to form a stable support assembly 3, and the ring support 3021 is disposed such that a gap between the support ring 302 and the support bar 301 is large enough, which does not affect the circulation of the shell side medium while ensuring the support strength of the support assembly 3.

Preferably, adjacent support rings 302 are fixedly connected through the ring support 3021, a plurality of support rings 302 are integrally connected to form a ring assembly 6, the support bar 301 is engaged with the ring support 3021 to form a support assembly 3, in this arrangement, the ring assembly 6 is integrally formed, which facilitates the production of the ring assembly 6, and then the support bar 301 is engaged with the ring support 3021, so as to further enhance the support strength of the ring assembly 6 and ensure the safety of the heat exchanger 1.

Example 2

On the basis of the embodiment 1, the structure of the sectionally connected tube heat exchanger provided by the embodiment 1 is changed as follows:

in this embodiment, as shown in fig. 5, the supporting bars 301 are further provided with connecting holes 3012, the connecting holes 3012 are used to connect the supporting rings 302, specifically, the connecting holes 3012 are arranged to penetrate or not to penetrate, the supporting rings 302 can be fixed on the connecting holes 3012 in an inserting manner, and a supporting frame formed by engaging the plurality of supporting bars 301 is matched to form a stable supporting assembly 3, so that the supporting rings 302 are located in the supporting frame formed by the supporting bars 301, and the supporting assembly has a flat appearance and a stable structure.

Preferably, as shown in fig. 7, a connecting portion 3022 is provided at an end of the ring body support 3021, and the connecting portion 3022 is disposed in cooperation with the connecting hole 3012 for disposing the support ring 302 on the support bar 301, specifically, the connecting portion 3022 is disposed in a shrinking manner with respect to the ring body support 3021, that is, the connecting portion 3022 is smaller in size with respect to the ring body support 3021, in this case, when the connecting portion 3022 is disposed in cooperation with the connecting hole 3012, the end of the ring body support 3021 abuts against the support bar 301 to complete the limit, which facilitates the rapid assembly of the support ring 302.

Example 3

as shown in fig. 10 to 12, the support ring 302 is formed by combining ring strips, each ring strip is provided with a plurality of half ring grooves 3026, adjacent half ring grooves 3026 are connected by straight sections 3023, and two ring strips are combined relatively to form the ring body assembly 6, which can simplify the production process of the support ring 302 and also simplify the installation process of the heat exchange tube 4 during the assembly process, in the prior art, the heat exchange tube 4 is generally assembled by a tube penetrating manner, because the outer diameter of the heat exchange tube 4 is equivalent to the inner diameter of the support ring 302, the tube penetrating speed is slow, which affects the assembly efficiency of the heat exchanger 1, in this embodiment, the heat exchange tube 4 to be arranged can be placed on the half ring groove 3026 first, and then another ring strip is covered to complete the assembly, which greatly shortens the assembly time of the heat exchanger 1 and improves the production efficiency, specifically, the shape of the half-ring groove 3026 may be changed differently according to the shape of the heat exchange tube 4, and the two half-ring grooves 3026 may be fastened to form the complete support ring 302.

Preferably, a connection structure is disposed on the straight section 3023, the connection structure is used for fixedly connecting the two ring strips, and the connection structure can enhance the strength of the support ring 302, facilitate to enhance the support strength of the support assembly 3, and enhance the safety of the heat exchanger 1, and it is easily conceivable that the two ring bodies can also be fixedly connected by bonding, crimping, or the like.

Specifically, connection structure includes plug connector 3024 and spliced eye 3025, the connection is accomplished in plug connector 3024 stretches into spliced eye 3025, should set up simple structure, and easy to produce, stability is better, and is preferred, on same ring strip plug connector 3024 with spliced eye 3025 interval sets up, on the straight section 3023 of each semi-ring groove 3026 both sides promptly, one side sets up plug connector 3024, and one side sets up spliced eye 3025, and this setting makes two the ring body has more firm connection effect when the equipment, uses a set of mould to accomplish production simultaneously, is favorable to reduce cost.

Preferably, the plug connector 3024 includes a plug post 3024a and a joint portion 3024b, the joint portion 3024b is disposed on the top end of the plug post 3024a, the joint portion 3024b is connected to the straight section 3023 in a clamped manner after the plug connection is completed, so as to further improve the strength of the support ring 302, and thus improve the support effect of the support assembly 3.

In this embodiment, a ring body support 3021 is further disposed on the half ring groove 3026, the ring body support 3021 may be fixedly connected to another half ring groove 3026 to form a ring assembly composed of two ring bars in opposite directions, and the ring assembly 6 may be formed by fixedly connecting a plurality of ring bar assemblies through a connecting structure, or the ring body support 3021 is engaged with the supporting bar 301 to form the supporting assembly 3.

It should be noted that all terms used in the present invention for directional and positional indication, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "lower", "tail end", "head end", "center", etc. are only used to explain the relative positional relationship, connection conditions, etc. between the parts in a certain specific state, and only for the convenience of description the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. The tube type heat exchanger is characterized in that the heat exchange tubes (4) comprise at least two heat exchange tube sections, the heat exchange tube sections are connected through connecting pieces (5) to form the heat exchange tubes (4), and the connecting pieces (5) are used for realizing non-welded connection among the heat exchange tube sections.

2. The tube heat exchanger of claim 1, wherein the connector (5) comprises a socket part (501) and a plug part (502), and the socket part (501) and the plug part (502) are provided with through holes in the center.

3. A sectionally joined tube heat exchanger according to claim 2, characterized in that said connecting piece (5) is of a flexible material and/or a heat-shrinkable material.

4. A tube heat exchanger according to any of claims 1-3, characterised in that the heat exchanger (1) further comprises at least one support assembly (3), the support assembly (3) comprises support bars (301) and support rings (302), the support bars (301) are used for providing support, the support rings (302) are used for the heat exchange tubes (4) to pass through, and gaps are arranged between the support bars (301) and the support rings (302) for the shell side medium to flow through.

5. A sectionally joined tube heat exchanger according to claim 4, characterized in that one side of the support bars (301) is provided with a number of open slots (3011), said open slots (3011) being intended for engagement between a number of support bars (301) and/or said open slots (3011) being intended for engagement with the support ring (302).

6. A sectionally connected tube heat exchanger according to claim 5, characterized in that the support ring (302) comprises an annular body on which a ring support (3021) is arranged, the ring support (3021) being intended for connection with the support bar (301).

7. A sectionally joined tube heat exchanger according to claim 6, characterized in that connection holes (3012) are further provided in the support bar (301), said connection holes (3012) being used for connecting the support ring (302).

8. A sectionally joined tube heat exchanger according to claim 7, characterized in that connection portions (3022) are provided at the ends of the ring body support (3021), said connection portions (3022) being arranged to cooperate with the connection holes (3012) for arranging the support ring (302) on the support bar (301).

9. A sectionally joined tube heat exchanger according to claim 5, characterized in that the support ring (302) is formed by a combination of ring strips, each of which is provided with a number of half ring grooves (3026), and adjacent half ring grooves (3026) are connected by straight sections (3023).

10. A sectionally joined tube heat exchanger according to claim 9, characterized in that a connection structure is provided on the flat section (3023), which connection structure is used for a fixed connection between two of the ring strips.