CN117029536A - Shell-and-tube heat exchanger - Google Patents
Shell-and-tube heat exchanger Download PDFInfo
- Publication number
- CN117029536A CN117029536A CN202311281268.2A CN202311281268A CN117029536A CN 117029536 A CN117029536 A CN 117029536A CN 202311281268 A CN202311281268 A CN 202311281268A CN 117029536 A CN117029536 A CN 117029536A
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- China
- Prior art keywords
- shell
- jack
- heat exchanger
- fixedly connected
- tube heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001125 extrusion Methods 0.000 claims description 59
- 230000005389 magnetism Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 description 13
- 230000037431 insertion Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 238000003825 pressing Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
Abstract
The invention relates to the field of heat exchangers, in particular to a shell-and-tube heat exchanger, which comprises a tubular shell, wherein end covers are fixedly connected to two ends of the shell, a bundling pipe is fixedly connected to the outer end surface of each end cover, a cover plate is fixedly connected to the inner end surface of each end cover, and a plurality of plugging components are uniformly arranged on the cover plate; the plugging assembly comprises a base block and a sleeve; the base block is fixedly connected to the cover plate, the upper end face of the base block is provided with a jack, the sleeve penetrates through the cover plate, the inner surface of the sleeve is flush with the inner surface of the jack, and the end part of the medium pipe is inserted into the sleeve; the structural design of the shell-and-tube heat exchanger realizes flexible addition and reduction of the medium tube, meets the use scenes of different levels, ensures the maximum utilization of the cooling exchange performance of the shell-and-tube heat exchanger, avoids the problem of surplus performance, and reduces the cleaning and replacement cost of the medium tube.
Description
Technical Field
The invention relates to the field of heat exchangers, in particular to a shell-and-tube heat exchanger.
Background
The shell-and-tube heat exchanger is a partition wall type heat exchanger with the wall surface of a tube bundle enclosed in a shell as a heat transfer surface. The heat exchanger has the advantages of simple structure, low manufacturing cost, wider flow section, easy scale cleaning, wide application and mature use in various chemical fields.
During the production and processing of the shell-and-tube heat exchanger, products are processed according to the needs of customers, but when the shell-and-tube heat exchanger is actually put into use, performance tests are also needed to be carried out, and the number of the medium pipes required to convey the cooled medium is calculated.
If the produced shell-and-tube heat exchanger is provided with excessive medium tube design quantity, the surplus performance is caused, the input amount of the medium tube is excessive, the cleaning and replacement cost of the medium tube can be increased in the later stage, the medium tube of the traditional shell-and-tube heat exchanger is generally fixed, more medium tubes can not be installed according to the requirement, or the use amount of the medium tube can be reduced by dismounting.
Therefore, a shell-and-tube heat exchanger is proposed for the above-mentioned problems.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention provides a shell-and-tube heat exchanger, which is characterized in that: the device comprises a tubular shell, wherein end covers are fixedly connected at two ends of the shell, a bundling pipe is fixedly connected at the outer end face of each end cover, a cover plate is fixedly connected at the inner end face of each end cover, and a plurality of plugging components are uniformly arranged on the cover plate;
the plugging assembly comprises a base block and a sleeve; the base block is fixedly connected to the cover plate, the upper end face of the base block is provided with a jack, the sleeve penetrates through the cover plate, the inner surface of the sleeve is flush with the inner surface of the jack, and the end part of the medium pipe is inserted into the sleeve; the sliding holes are symmetrically formed in the end faces of the base blocks, the sliding holes are formed in two sides of the insertion holes, the tail ends of the sliding holes extend into the insertion holes in an arc shape, elastic push rods are arranged in the sliding holes, one ends of the elastic push rods extend into the insertion holes along the sliding holes, the middle positions of the elastic push rods are connected into the sliding holes through springs, the other ends of the elastic push rods are vertically and fixedly connected with connecting rods, and plug bodies are fixedly connected to the end faces, close to the insertion holes, of the connecting rods and used for plugging the insertion holes.
Preferably, a sliding groove is formed in the sleeve and close to the sliding hole, the sliding groove is symmetrically formed in the inner side wall of the sleeve, the cross section of the sliding groove is shaped, a sliding block is connected in the sliding groove in a sliding mode, and the sliding block is fixedly connected to one end of the elastic push rod.
Preferably, the plug body is in a truncated cone shape, a rubber ring is fixedly connected to the outer ring of the plug body, which is close to the connecting rod, and the cross section of the rubber ring is in a water drop shape; the end face of the base block is provided with an annular groove, the annular groove and the jack are coaxially arranged, and the shape of the inner cavity of the annular groove is adapted to the shape of the rubber ring.
Preferably, the base block is provided with an elastic extrusion ring in a ring shape, the elastic extrusion ring is arranged at the joint position of the jack and the annular groove, the plug body is plugged into the jack, and the plug body extrudes the elastic extrusion ring to expand towards the annular groove.
Preferably, the medium pipe is erected in the shell through a ring-shaped supporting plate, a plurality of through holes and notches are formed in the supporting plate, the medium pipe penetrates through the through holes, the through holes are in clearance fit with the medium pipe, and locking assemblies are arranged at the positions of the through holes;
the locking component is used for fixing the medium pipe on the supporting plate, the arc-shaped opening is formed in the axial symmetry of the inner side wall of the through hole, the locking component comprises an extrusion plate in an arc shape, the thickness of one end of the extrusion plate is gradually increased to the thickness of the other end of the extrusion plate, a push-pull rod is fixedly connected to one end of the extrusion plate, the push-pull rod penetrates through a yielding groove formed in the inner side wall of the through hole and is axially symmetrically formed, and the two ends of the push-pull rod are fixedly connected with shifting blocks.
Preferably, a notch is formed in the arc-shaped opening at a position opposite to the end face with the large thickness of the extrusion plate, a first magnet is arranged in the notch, a second magnet is arranged on the end face with the large thickness of the extrusion plate, and the magnetism of the second magnet is opposite to that of the first magnet.
Preferably, a strip-shaped first bulge is arranged on the side wall of the shifting block opposite to the supporting plate; the backup pad is last to be equipped with a plurality of strip shape's No. two archs, and No. one is protruding to be cooperated in No. two protruding settings.
Preferably, the other end of the extrusion plate is fixedly connected with a guide rod, the guide rod penetrates through a strip-shaped hole formed in the inner surface of the arc-shaped opening, and the strip-shaped hole is axially symmetrically arranged relative to the axis of the through hole.
Preferably, the outer ring of the supporting plate is fixedly connected with a jacking block, the end face of the jacking block is provided with a fixing hole, and the bolt threads penetrate through the shell and are embedded in the fixing hole.
Preferably, the inner surface of each extrusion plate is provided with a friction plate.
The invention has the advantages that:
1. the structural design of the shell-and-tube heat exchanger realizes flexible addition and reduction of the medium tube, meets the use scenes of different levels, ensures the maximum utilization of the cooling exchange performance of the shell-and-tube heat exchanger, avoids the problem of surplus performance, and reduces the cleaning and replacement cost of the medium tube.
2. In the invention, in order to facilitate the installation and the disassembly of the medium pipe, the medium pipe and the supporting plate are designed into a structure which is flexibly disassembled and assembled, and the locking component is also designed, the medium pipe is fastened on the supporting plate, the medium pipe penetrates through the through hole, the shifting block is pushed, the shifting block drives the extrusion plate to move through the push-pull rod, the extrusion plate deflects along the arc-shaped opening, and in the deflection process, the extrusion plate is extruded on the surface of the medium pipe, the medium pipe is locked in the through hole, and the installation stability of the medium pipe is ensured.
Drawings
FIG. 1 is a perspective view of a shell and tube heat exchanger of the present invention;
FIG. 2 is a perspective view of the medium pipe and the support plate of the present invention;
FIG. 3 is a perspective view of a closure assembly of the present invention;
FIG. 4 is a cross-sectional view of a closure assembly according to the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a perspective view of the medium pipe and the elastic push rod of the present invention;
FIG. 7 is a partial enlarged view at B in FIG. 6;
fig. 8 is a perspective view of a support plate according to the present invention;
FIG. 9 is a perspective view of the medium pipe and the cover plate of the present invention;
FIG. 10 is a perspective view of the locking assembly of the present invention;
FIG. 11 is a perspective view showing the fit of the extrusion plate and the through hole in the present invention;
FIG. 12 is a perspective view of a squeeze plate of the present invention;
fig. 13 is a cross-sectional view of a support plate in the present invention.
In the figure: 1. a housing; 2. an end cap; 3. a bundling tube; 4. a cover plate; 5. a base block; 6. a sleeve; 7. a jack; 8. a medium pipe; 9. a slide hole; 10. an elastic push rod; 11. a connecting rod; 12. a plug body; 13. a chute; 14. a slide block; 15. a rubber ring; 16. an annular groove; 17. an elastic extrusion ring; 18. a support plate; 19. a through hole; 20. a notch; 21. an arc-shaped opening; 22. an extrusion plate; 23. a push-pull rod; 24. a relief groove; 241. a shifting block; 25. a magnet number one; 26. a magnet number two; 27. a first bulge; 28. a second bulge; 29. a guide rod; 30. a bar-shaped hole; 31. a top block; 32. a fixing hole; 33. friction plate.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1-5, a shell-and-tube heat exchanger comprises a tubular shell 1, wherein end covers 2 are fixedly connected to two ends of the shell 1, a bundling tube 3 is fixedly connected to the outer end surface of each end cover 2, a cover plate 4 is fixedly connected to the inner end surface of each end cover 2, and a plurality of plugging components are uniformly arranged on the cover plate 4;
the plugging assembly comprises a base block 5 and a sleeve 6; the base block 5 is fixedly connected to the cover plate 4, the upper end face of the base block 5 is provided with a jack 7, the sleeve 6 penetrates through the cover plate 4, the inner surface of the sleeve 6 is flush with the inner surface of the jack 7, and the end part of the medium pipe 8 is inserted into the sleeve 6; the end face of the base block 5 is symmetrically provided with slide holes 9, the slide holes 9 are positioned at two sides of the jack 7, the tail ends of the slide holes 9 extend into the jack 7 in an arc shape, an elastic push rod 10 is arranged in the slide holes 9, one end of the elastic push rod 10 extends into the jack 7 along the slide holes 9, the middle position of the elastic push rod 10 is connected in the slide holes 9 through a spring, the other end of the elastic push rod 10 is vertically and fixedly connected with a connecting rod 11, the end face, close to the jack 7, of the connecting rod 11 is fixedly connected with a plug body 12, and the plug body 12 is used for plugging the jack 7;
in the embodiment, the heat exchange performance and efficiency of different media can be satisfied by designing a shell-and-tube heat exchanger capable of increasing or decreasing the number of the medium tubes 8; when the medium pipe 8 needs to be added, firstly, one end cover 2 is removed, at the moment, the other end cover 2 is reserved on the shell 1, the medium pipes 8 are inserted into the shell 1 one by one, then one end of each medium pipe 8 is firstly inserted into the other end cover 2, after one end of each medium pipe 8 is installed in place, the end cover 2 removed before installation is arranged, and the other end of each medium pipe 8 is installed on the end cover 2; inserting a medium pipe 8 into a sleeve 6, extruding one end of an elastic push rod 10 from the end part of the medium pipe 8, extruding the elastic push rod 10 towards the direction of a bundling pipe 3, stretching a spring connected with the elastic push rod 10, pushing a plug body 12 out of the elastic push rod 10, and enabling the plug body 12 not to block an insertion hole 7 on a base block 5 any more, wherein a medium to be cooled flows into an end cover 2 along the bundling pipe 3, flows into the medium pipe 8 from the insertion hole 7, flows into the other end cover 2, and flows out of the bundling pipe 3 of the end cover 2, so that the medium is conveyed; when the number of the medium pipes 8 needs to be reduced, the medium pipes 8 are pulled out of the sleeve 6, the medium pipes 8 do not squeeze the elastic push rod 10 any more, the elastic push rod 10 resets the elastic push rod 10 under the elasticity of a spring connected with the elastic push rod 10, and meanwhile, the plug body 12 is driven to move towards the direction of the jack 7 and plug the jack 7, so that the plugging of the medium is realized; the structural design of the shell-and-tube heat exchanger realizes flexible addition and reduction of the medium tube 8, meets the use scenes of different levels, ensures the maximum utilization of the cooling exchange performance of the shell-and-tube heat exchanger, avoids the problem of surplus performance, and reduces the cleaning and replacement cost of the medium tube 8.
Referring to fig. 4-7, a sliding groove 13 is formed in the sleeve 6 and close to the sliding hole 9, the sliding groove 13 is symmetrically arranged on the inner side wall of the sleeve 6, the cross section of the sliding groove 13 is in a T shape, a sliding block 14 is connected in a sliding manner in the sliding groove 13, and the sliding block 14 is fixedly connected to one end of the elastic push rod 10; when the one end of elastic push rod 10 is arranged in jack 7, because the elasticity of elastic push rod 10 self, the other end of elastic push rod 10 can tend to the straight line jack 7 axis position, can lead to two elastic push rods 10 to be located the inside one end of jack 7 and be close to each other, in the tip of medium pipe 8 insert sleeve pipe 6 in-process, a problem that can not touch elastic push rod 10 can appear in the tip of medium pipe 8, set up slider 14 for this reason, slider 14 restraints the inside one end of elastic push rod 10 in jack 7 and points to medium pipe 8 all the time, make the one end subsides of elastic push rod 10 cover at sleeve pipe 6 internal surface slip, in the in-process of medium pipe 8 insert sleeve pipe 6, the tip of medium pipe 8 can effectively push up at the tip of elastic push rod 10, guarantee that elastic push rod 10 takes cock body 12 away from jack 7.
Referring to fig. 4-7, the plug body 12 is in a shape of a circular truncated cone, a rubber ring 15 is fixedly connected to the outer ring of the plug body 12 at a position close to the connecting rod 11, and the cross section of the rubber ring 15 is in a shape of water drops; the end face of the base block 5 is provided with an annular groove 16, the annular groove 16 and the jack 7 are coaxially arranged, and the shape of the inner cavity of the annular groove 16 is adapted to the shape of the rubber ring 15; after the medium pipe 8 is pulled out from the sleeve 6, the elastic push rod 10 loses the extrusion of the medium pipe 8, the plug body 12 is embedded in the jack 7, and meanwhile, the rubber ring 15 is embedded in the annular groove 16, so that the tightness between the jack 7 and the plug body 12 is further improved.
Referring to fig. 5, the base block 5 is provided with an elastic extrusion ring 17 in a ring shape, the elastic extrusion ring 17 is arranged at the joint position of the jack 7 and the annular groove 16, the plug body 12 is plugged into the jack 7, the plug body 12 is in a round table shape, the outer surface of the plug body 12 gradually extrudes the elastic extrusion ring 17, and the elastic extrusion ring 17 is forced to gradually expand outwards and expand towards the annular groove 16; after the plug body 12 is embedded in the jack 7, the plug body 12 is outwards extruded to an elastic extrusion ring 17, the elastic extrusion ring 17 is extruded at the tail end position of the rubber ring 15, the rubber ring 15 is extruded and deformed, the rubber ring 15 is more attached to the annular groove 16, the sealing performance is improved again, and the possibility that a medium flows out through a gap of the jack 7 is reduced.
Referring to fig. 1-2 and fig. 8-12, a medium pipe 8 is erected in a shell 1 through a ring-shaped supporting plate 18, a plurality of through holes 19 and notches 20 are formed in the supporting plate 18, the medium pipe 8 penetrates through the through holes 19, the through holes 19 are in clearance fit with the medium pipe 8, and locking components are arranged at the positions of the through holes 19;
the locking component is used for fixing the medium pipe 8 on the supporting plate 18, the inner side wall of the through hole 19 is axially symmetrically provided with an arc-shaped opening 21, the locking component comprises an arc-shaped extrusion plate 22, the thickness of one end of the extrusion plate 22 is gradually increased to the other end of the extrusion plate, one end of the extrusion plate 22 is fixedly connected with a push-pull rod 23, the push-pull rod 23 penetrates through a yielding groove 24 axially symmetrically arranged on the inner side wall of the through hole 19, and two ends of the push-pull rod 23 are fixedly connected with a shifting block 241; in order to facilitate the installation and the disassembly of the medium pipe 8, the medium pipe 8 and the supporting plate 18 are designed into a flexible disassembly structure, meanwhile, a locking assembly is also designed, the medium pipe 8 is fastened on the supporting plate 18, the medium pipe 8 penetrates through the through hole 19, the shifting block 241 is pushed, the shifting block 241 drives the extrusion plate 22 to move through the push-pull rod 23, the extrusion plate 22 deflects along the arc-shaped opening 21, and in the deflection process, the extrusion plate 22 is extruded on the surface of the medium pipe 8, and the medium pipe 8 is locked in the through hole 19.
Referring to fig. 10 and 12, a notch is formed in the arc-shaped opening 21 at a position opposite to the end face with the large thickness of the extrusion plate 22, a first magnet 25 is arranged in the notch, a second magnet 26 is arranged on the end face with the large thickness of the extrusion plate 22, and the magnetism of the second magnet 26 is opposite to that of the first magnet 25; in the process of inserting the medium pipe 8 into the through hole 19, in order to prevent the extrusion plate 22 from blocking the insertion of the medium pipe 8, a first magnet 25 and a second magnet 26 are provided, the extrusion plate 22 is adsorbed in the arc-shaped opening 21 by the mutual attraction between the first magnet 25 and the second magnet 26, and the insertion space of the medium pipe 8 is vacated, so that the medium pipe 8 can be smoothly inserted.
Referring to fig. 9 to 12, a bar-shaped first protrusion 27 is provided on a side wall of the dial 241 opposite to the support plate 18; a plurality of strip-shaped second protrusions 28 are arranged on the supporting plate 18, and the first protrusions 27 are matched with the second protrusions 28; when the medium pipe 8 runs, vibration generated by the medium flowing in the medium pipe 8 is transmitted to the locking component, in order to prevent the extrusion plate 22 from rotating automatically, the first protrusion 27 and the second protrusion 28 are arranged to push the shifting block 241, due to the fact that a gap exists between the shifting block 241 and the supporting plate 18, the first protrusion 27 can slide, the first protrusion 27 slides along the second protrusion 28, after the locking, the first protrusion 27 is embedded between the two adjacent second protrusions 28 to lock the shifting block 241, and meanwhile, the extrusion plate 22 is locked, so that the stability of the medium pipe 8 in the through hole 19 is guaranteed.
Referring to fig. 11-13, the other end of the extrusion plate 22 is fixedly connected with a guide rod 29, the guide rod 29 penetrates through a strip-shaped hole 30 formed in the inner surface of the arc-shaped opening 21, and the strip-shaped hole 30 is axially symmetrically arranged about the axis of the through hole 19; by providing the guide rod 29, the movement of the pressing plate 22 is guided, and the pressing plate 22 is restrained in the arc-shaped opening 21, so that the pressing plate 22 is prevented from being separated from the arc-shaped opening 21.
Referring to fig. 8, a top block 31 is fixedly connected to the outer ring of the support plate 18, a fixing hole 32 is formed in the end surface of the top block 31, and a bolt thread penetrates through the shell 1 and is embedded in the fixing hole 32; the medium pipe 8 is inserted in the through hole 19 on the supporting plate 18, the medium pipe 8 is stabilized into a whole, meanwhile, the medium pipe 8 penetrates through the shell 1 through the screw threads of the bolts, the bolts are embedded in the fixing holes 32, the supporting plate 18 is fixed in the shell 1, and the integrity and the stability of the medium pipe 8 are ensured.
Referring to fig. 12, the inner surface of each pressing plate 22 is provided with a friction plate 33; by providing the friction plate 33, the frictional resistance between the pressing plate 22 and the medium pipe 8 is increased, and the stability of the medium pipe 8 in the through hole 19 is improved.
Working principle: in the embodiment, the heat exchange performance and efficiency of different media can be satisfied by designing a shell-and-tube heat exchanger capable of increasing or decreasing the number of the medium tubes 8; when the medium pipe 8 needs to be added, firstly, one end cover 2 is removed, at the moment, the other end cover 2 is reserved on the shell 1, the medium pipes 8 are inserted into the shell 1 one by one, then one end of each medium pipe 8 is firstly inserted into the other end cover 2, after one end of each medium pipe 8 is installed in place, the end cover 2 removed before installation is arranged, and the other end of each medium pipe 8 is installed on the end cover 2; inserting a medium pipe 8 into a sleeve 6, extruding one end of an elastic push rod 10 from the end part of the medium pipe 8, extruding the elastic push rod 10 towards the direction of a bundling pipe 3, stretching a spring connected with the elastic push rod 10, pushing a plug body 12 out of the elastic push rod 10, and enabling the plug body 12 not to block an insertion hole 7 on a base block 5 any more, wherein a medium to be cooled flows into an end cover 2 along the bundling pipe 3, flows into the medium pipe 8 from the insertion hole 7, flows into the other end cover 2, and flows out of the bundling pipe 3 of the end cover 2, so that the medium is conveyed; when the number of the medium pipes 8 needs to be reduced, the medium pipes 8 are pulled out of the sleeve 6, the medium pipes 8 do not squeeze the elastic push rod 10 any more, the elastic push rod 10 resets the elastic push rod 10 under the elasticity of a spring connected with the elastic push rod 10, and meanwhile, the plug body 12 is driven to move towards the direction of the jack 7 and plug the jack 7, so that the plugging of the medium is realized; the structural design of the shell-and-tube heat exchanger realizes flexible addition and reduction of the medium tube 8, meets the use scenes of different levels, ensures the maximum utilization of the cooling exchange performance of the shell-and-tube heat exchanger, avoids the problem of surplus performance, and reduces the cleaning and replacement cost of the medium tube 8;
when one end of the elastic push rod 10 is placed in the jack 7, the other end of the elastic push rod 10 tends to be in the axial line position of the linear jack 7 due to the elasticity of the elastic push rod 10, so that one ends of the two elastic push rods 10 positioned in the jack 7 are close to each other, one problem that the ends of the medium pipe 8 cannot touch the elastic push rod 10 possibly occurs in the process of inserting the ends of the medium pipe 8 into the jack 6, and therefore the sliding block 14 is arranged, the sliding block 14 constrains one end of the elastic push rod 10 positioned in the jack 7 to always point to the medium pipe 8, so that one end of the elastic push rod 10 is attached to the inner surface of the sleeve 6 to slide, and the ends of the medium pipe 8 effectively push against the ends of the elastic push rod 10 in the process of inserting the medium pipe 8 into the sleeve 6, so that the elastic push rod 10 brings the plug body 12 away from the jack 7 is ensured;
after the medium pipe 8 is pulled out of the sleeve 6, the elastic push rod 10 loses extrusion of the medium pipe 8, the plug body 12 is embedded in the jack 7, and meanwhile, the rubber ring 15 is embedded in the annular groove 16, so that the tightness between the jack 7 and the plug body 12 is further improved; after the plug body 12 is embedded in the jack 7, the plug body 12 presses the elastic pressing ring 17 outwards, the elastic pressing ring 17 presses the tail end position of the rubber ring 15, and the rubber ring 15 is pressed and deformed, so that the rubber ring 15 is more attached to the annular groove 16, the tightness is improved again, and the possibility that a medium flows out through a gap of the jack 7 is reduced;
in order to facilitate the installation and the disassembly of the medium pipe 8, the medium pipe 8 and the supporting plate 18 are designed into a flexible disassembly structure, and a locking component is also designed, the medium pipe 8 is fastened on the supporting plate 18, the medium pipe 8 penetrates through the through hole 19 to push the shifting block 241, the shifting block 241 drives the extrusion plate 22 to move through the push-pull rod 23, the extrusion plate 22 deflects along the arc-shaped opening 21, and in the deflection process, the extrusion plate 22 is extruded on the surface of the medium pipe 8 to lock the medium pipe 8 in the through hole 19;
in the process of inserting the medium pipe 8 into the through hole 19, in order to prevent the extrusion plate 22 from blocking the insertion of the medium pipe 8, a first magnet 25 and a second magnet 26 are arranged, the extrusion plate 22 is adsorbed in the arc-shaped opening 21 through the mutual attraction between the first magnet 25 and the second magnet 26, and the insertion space of the medium pipe 8 is vacated, so that the medium pipe 8 can be smoothly inserted;
when the medium pipe 8 runs, vibration generated by the medium flowing in the medium pipe 8 is transmitted to the locking component, in order to prevent the extrusion plate 22 from rotating automatically, the first bulge 27 and the second bulge 28 are arranged to push the shifting block 241, the space between the shifting block 241 and the supporting plate 18 is just the slidable space of the first bulge 27, the first bulge 27 slides along the second bulge 28, after the locking, the first bulge 27 is embedded between the two adjacent second bulges 28 to lock the shifting block 241 and the extrusion plate 22, so that the stability of the medium pipe 8 in the through hole 19 is ensured;
by arranging the guide rod 29, the movement of the extrusion plate 22 is guided, and the extrusion plate 22 is restrained in the arc-shaped opening 21, so that the extrusion plate 22 is prevented from being separated from the arc-shaped opening 21; the medium pipe 8 is inserted in the through hole 19 on the supporting plate 18, the medium pipe 8 is stabilized into a whole, meanwhile, the medium pipe 8 penetrates through the shell 1 through the screw threads of the bolts, the bolts are embedded in the fixing holes 32, the supporting plate 18 is fixed in the shell 1, and the integrity and the stability of the medium pipe 8 are ensured.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A shell and tube heat exchanger, characterized in that: the sealing device comprises a tubular shell (1), wherein end covers (2) are fixedly connected to two ends of the shell (1), a bundling pipe (3) is fixedly connected to the outer end face of each end cover (2), a cover plate (4) is fixedly connected to the inner end face of each end cover (2), and a plurality of sealing components are uniformly arranged on the cover plate (4);
the plugging assembly comprises a base block (5) and a sleeve (6); the base block (5) is fixedly connected to the cover plate (4), the upper end face of the base block (5) is provided with a jack (7), the sleeve (6) penetrates through the cover plate (4), the inner surface of the sleeve (6) is flush with the inner surface of the jack (7), and the end part of the medium pipe (8) is inserted into the sleeve (6); the sliding hole (9) is symmetrically formed in the end face of the base block (5), the sliding hole (9) is located on two sides of the jack (7), the tail end of the sliding hole (9) extends into the jack (7) in an arc shape, an elastic push rod (10) is arranged in the sliding hole (9), one end of the elastic push rod (10) extends into the jack (7) along the sliding hole (9), the middle position of the elastic push rod (10) is connected into the sliding hole (9) through a spring, the other end of the elastic push rod (10) is vertically fixedly connected with a connecting rod (11), a plug body (12) is fixedly connected onto the end face, close to the jack (7), of the connecting rod (11), and the plug body (12) is used for plugging the jack (7).
2. A shell and tube heat exchanger according to claim 1, wherein: a sliding groove (13) is formed in the sleeve (6) and close to the sliding hole (9), the sliding groove (13) is symmetrically arranged on the inner side wall of the sleeve (6), the cross section of the sliding groove (13) is in a T shape, a sliding block (14) is connected in the sliding groove (13) in a sliding mode, and the sliding block (14) is fixedly connected to one end of the elastic push rod (10).
3. A shell and tube heat exchanger according to claim 1, wherein: the plug body (12) is in a truncated cone shape, a rubber ring (15) is fixedly connected to the outer ring of the plug body (12) close to the connecting rod (11), and the cross section of the rubber ring (15) is in a water drop shape; an annular groove (16) is formed in the end face of the base block (5), the annular groove (16) and the jack (7) are coaxially arranged, and the shape of an inner cavity of the annular groove (16) is adapted to the shape of the rubber ring (15).
4. A shell and tube heat exchanger according to claim 3, wherein: the base block (5) is provided with an annular elastic extrusion ring (17), the elastic extrusion ring (17) is arranged at the joint position of the jack (7) and the annular groove (16), the plug body (12) is plugged into the jack (7), and the plug body (12) extrudes the elastic extrusion ring (17) to expand towards the annular groove (16).
5. A shell and tube heat exchanger according to claim 1, wherein: the medium pipe (8) is erected in the shell (1) through a ring-shaped supporting plate (18), a plurality of through holes (19) and notches (20) are formed in the supporting plate (18), the medium pipe (8) penetrates through the through holes (19), the through holes (19) are in clearance fit with the medium pipe (8), and a locking assembly is arranged at the position of the through holes (19);
the locking component is used for fixing the medium pipe (8) on the backup pad (18), the arc mouth (21) is seted up to through-hole (19) inside wall axisymmetry, the locking component includes extrusion board (22) of arc shape, the one end of extrusion board (22) is to its other end thickness increase gradually setting, the one end rigid coupling of extrusion board (22) has push-and-pull rod (23), push-and-pull rod (23) run through the groove (24) of stepping down of axisymmetrically seting up on the inside wall of through-hole (19), and the both ends of push-and-pull rod (23) all rigid coupling have shifting block (241).
6. A shell and tube heat exchanger according to claim 5, wherein: a notch is formed in the arc-shaped opening (21) at a position opposite to the end face with the large thickness of the extrusion plate (22), a first magnet (25) is arranged in the notch, a second magnet (26) is arranged on the end face with the large thickness of the extrusion plate (22), and the magnetism of the second magnet (26) is opposite to that of the first magnet (25).
7. A shell and tube heat exchanger according to claim 5, wherein: a strip-shaped first bulge (27) is arranged on the side wall of the shifting block (241) opposite to the supporting plate (18); a plurality of strip-shaped second protrusions (28) are arranged on the supporting plate (18), and the first protrusions (27) are matched with the second protrusions (28).
8. A shell and tube heat exchanger according to claim 6, wherein: the other end of the extrusion plate (22) is fixedly connected with a guide rod (29), the guide rod (29) penetrates through a strip-shaped hole (30) formed in the inner surface of the arc-shaped opening (21), and the strip-shaped hole (30) is axially symmetrically arranged relative to the axis of the through hole (19).
9. A shell and tube heat exchanger according to claim 7, wherein: the outer ring of the supporting plate (18) is fixedly connected with a top block (31), the end face of the top block (31) is provided with a fixing hole (32), and a bolt thread penetrates through the shell (1) and is embedded into the fixing hole (32).
10. A shell and tube heat exchanger according to claim 8, wherein: the inner surface of each extrusion plate (22) is provided with a friction plate (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311281268.2A CN117029536B (en) | 2023-10-07 | 2023-10-07 | Shell-and-tube heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311281268.2A CN117029536B (en) | 2023-10-07 | 2023-10-07 | Shell-and-tube heat exchanger |
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| Publication Number | Publication Date |
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| CN117029536A true CN117029536A (en) | 2023-11-10 |
| CN117029536B CN117029536B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311281268.2A Active CN117029536B (en) | 2023-10-07 | 2023-10-07 | Shell-and-tube heat exchanger |
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| US20120118547A1 (en) * | 2010-11-15 | 2012-05-17 | Saudi Arabian Oil Company | Tube plug for a heat exchanger tube |
| US20170225521A1 (en) * | 2016-02-07 | 2017-08-10 | James E. Curry | Low profile positive grip rim lock |
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| CN209724889U (en) * | 2019-03-29 | 2019-12-03 | 张奉果 | A kind of twist-type telescopic pipe locking mechanism |
| CN112113457A (en) * | 2020-09-07 | 2020-12-22 | 新疆中泰纺织集团有限公司 | Plugging device for heat exchange tube and installation and use method thereof |
| CN215109918U (en) * | 2021-04-28 | 2021-12-10 | 中山庆琏金属制品有限公司 | Telescopic pipe mechanism and gardening tool |
| CN219185496U (en) * | 2022-09-26 | 2023-06-16 | 中国人民解放军总医院第四医学中心 | Negative pressure pipe fixing device |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377184A (en) * | 1977-10-29 | 1983-03-22 | Manfred Vetter | Plug |
| US5086809A (en) * | 1990-06-12 | 1992-02-11 | Bridges Donald Y | Pipe coupling and sealing device |
| JPH08200578A (en) * | 1995-01-27 | 1996-08-06 | Honda Motor Co Ltd | Wrong mounting preventing structure for stopper in pipe connecting device |
| US20120118547A1 (en) * | 2010-11-15 | 2012-05-17 | Saudi Arabian Oil Company | Tube plug for a heat exchanger tube |
| US20170225521A1 (en) * | 2016-02-07 | 2017-08-10 | James E. Curry | Low profile positive grip rim lock |
| CN208989943U (en) * | 2018-07-02 | 2019-06-18 | 兰州大学第一医院 | A kind of fixation device facilitating fixed Oxygen tube |
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| CN112113457A (en) * | 2020-09-07 | 2020-12-22 | 新疆中泰纺织集团有限公司 | Plugging device for heat exchange tube and installation and use method thereof |
| CN215109918U (en) * | 2021-04-28 | 2021-12-10 | 中山庆琏金属制品有限公司 | Telescopic pipe mechanism and gardening tool |
| CN219185496U (en) * | 2022-09-26 | 2023-06-16 | 中国人民解放军总医院第四医学中心 | Negative pressure pipe fixing device |
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| Publication number | Publication date |
|---|---|
| CN117029536B (en) | 2024-01-09 |
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