CN110440083B - Expansion joint structure and heat exchange device - Google Patents
Expansion joint structure and heat exchange device Download PDFInfo
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- CN110440083B CN110440083B CN201910870417.6A CN201910870417A CN110440083B CN 110440083 B CN110440083 B CN 110440083B CN 201910870417 A CN201910870417 A CN 201910870417A CN 110440083 B CN110440083 B CN 110440083B
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- tube
- heat exchange
- expansion joint
- connecting plate
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- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/022—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with a single corrugation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
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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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Building Environments (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses an expansion joint structure and a heat exchange device, wherein the expansion joint structure comprises: the compensating wave, the connecting plate and the connecting component; the connecting plate is arranged on one of the two parts of the tube plate and the wallboard, so that the connecting plate is overlapped with the part without the connecting plate in space, and the connecting assembly penetrates through the connecting plate and the part without the connecting plate along the overlapping direction to realize the connection of the tube plate and the wallboard, and the tube plate and the wallboard can move relatively; the first end of the compensation wave is in sealing connection with the tube plate, and the second end of the compensation wave is in sealing connection with the wall plate; the connecting assembly is arranged between the first end and the second end. The invention ensures the structural strength of the position where the compensation wave is arranged, solves the problem of expansion difference of the tube plate and the wall plate, ensures the structural strength of the heat exchange device, prolongs the service life of the heat exchange device and reduces the use cost of the heat exchange device.
Description
Technical Field
The invention relates to the technical field of heat exchange devices, in particular to an expansion joint structure and a heat exchange device.
Background
The heat exchange device is heat exchange equipment and is widely applied to different fields so as to realize heat or cold recovery, energy recycling and cost reduction and environmental pollution. The heat exchange device realizes the heating of the low-temperature medium and the cooling of the high-temperature medium by circulating two fluids with temperature difference, thereby realizing the heat exchange by taking all the required heat (the low-temperature fluid needs heat and the high-temperature fluid needs cold). The flow stroke in the heat exchange tube is tube side, the flow stroke in the outer side of the heat exchange tube is shell side, in order to ensure the loss of medium, the heat exchange tube of the fixed tube-plate heat exchanger must be fixedly installed with the tube plate, and the heat exchange tube and the tube plate are enclosed together to form a wall plate for flowing another medium, and the wall plate needs to be connected with the tube plate in a sealing way; however, the heat exchange tube and the wall plate have different thermal expansion amounts due to larger temperature difference between the heat exchange tube and the wall plate, so that the joint of the tube plate and the wall plate is easy to damage; meanwhile, the heat exchange tube arranged on the tube plate is damaged due to temperature difference stress, and the connection damage of the heat exchange tube and the tube plate can also occur; the service life of the heat exchange device is shortened due to the phenomenon, so that the heat exchange device is high in use cost and low in use safety.
In the prior art, the expansion joint is usually arranged on the shell side to solve the different thermal expansion amounts of the tube shell side, but for a part of heat exchangers with rectangular cross sections, the common expansion joint structure cannot solve the different thermal expansion problems of the wall plate and the heat exchange tube due to temperature difference, and the arrangement of the compensation wave on the shell side leads to the structure of the shell side to be insufficient in structural strength (because the compensation wave strength and rigidity of the expansion joint are poor, and the wall plate of the heat exchanger with rectangular cross section is of a flat plate structure, the strength and rigidity of the heat exchanger are also lower than those of the common circular cross section, if the expansion joint is arranged on the wall plate in a common arrangement mode, the wall plate cannot bear medium pressure and can be greatly deformed or damaged), or the compensation wave is not used (in order to ensure the structural strength of the shell side, so that the deformability of the compensation wave is greatly reduced); therefore, how to solve the thermal expansion difference between the components of the heat exchange device at the same time and ensure the structural strength of the heat exchange device is a difficult problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide an expansion joint structure and a heat exchange device, which ensure the structural strength of a compensation wave position so as to solve the problem of thermal expansion and cold contraction of a tube plate and a wallboard at the same time, and further ensure the structural strength of the heat exchange device, further prolong the service life of the heat exchange device and reduce the use cost of the heat exchange device.
The technical scheme provided by the invention is as follows:
An expansion joint structure, comprising:
The compensating wave, the connecting plate and the connecting component;
The connecting plate is arranged on one of the two parts of the tube plate and the wallboard, so that the connecting plate is spatially overlapped with the part without the connecting plate, the connecting assembly is connected with the connecting plate and the part without the connecting plate along the overlapping direction so as to realize the connection of the tube plate and the wallboard, and the tube plate and the wallboard can relatively move;
the first end of the compensation wave is in sealing connection with the tube plate, and the second end of the compensation wave is in sealing connection with the wall plate; the connecting assembly is arranged in a space between the first end and the second end.
Further preferably, the compensation wave is disposed outside a heat exchange space formed by surrounding the tube sheet and the wall plate.
Further preferably, the connection plate is provided in a space between the first end and the second end.
Further preferably, the connection plate is provided with reinforcing ribs.
Further preferably, the connecting plate and the part not provided with the connecting plate are correspondingly provided with elongated holes, and the connecting assembly penetrates through the two elongated holes to connect the tube plate and the wall plate, and meanwhile the tube plate and the wall plate can move relatively.
Further preferably, the connection assembly includes a connection member having one end hinged to an inner wall of a side of the member where the connection plate is not provided, which is close to the heat exchange space; the other end of the connecting piece is movably connected with the connecting plate.
Further preferably, the connection assembly is an elastic connection.
Further preferably, the compensation wave is of a single wave structure or a multi-wave structure.
The invention also provides a heat exchange device, which comprises:
Tube sheet, wall plate, heat exchange tube and expansion joint structure as described in any one of the above;
The two tube plates are oppositely arranged, a plurality of heat exchange tubes are arranged in parallel on the two tube plates, and two ends of each heat exchange tube are respectively exposed on the tube plates;
The wall plate is arranged between the two tube plates, and more than one expansion joint structure is arranged between the wall plate and the tube plates, so that compensation waves of the wall plate, the tube plates and the expansion joint structures are enclosed together to form a heat exchange space.
Further preferably, at least two of said expansion joint structures are arranged along a same straight line.
The expansion joint structure and the heat exchange device provided by the invention can bring at least one of the following beneficial effects:
1. In the invention, the tube plate and the wallboard are connected in a sealing way through the compensation wave, so that the structural strength of the tube plate and the wallboard is ensured while the sealing performance is ensured; the compensation wave solves the problem of expansion difference of the tube plate, the wall plate and the heat exchange tube, and the deformation capability of the compensation wave enables the tube plate and the wall plate to absorb the strokes of thermal expansion and cold contraction of the tube plate and the wall plate simultaneously when thermal expansion and contraction occur (for example, the compensation wave can deform towards the side far away from the tube plate when the tube plate is in thermal expansion, the compensation wave can deform towards the side close to the tube plate when the tube plate is in cold contraction; more preferably, the arrangement of the connecting plate and the connecting component ensures the structural strength of the position where the compensation wave is arranged, so that the problem of expansion difference of the tube plate and the wall plate is solved, the structural strength of the heat exchange device is also ensured, the integral strength and the rigidity of the heat exchange device are improved, the heat exchange device can normally work at higher operation temperature and higher operation pressure, the service life of the heat exchange device is further prolonged, the application range of the heat exchange device with the expansion joint structure is also improved (the heat exchange device can work at the operation temperature and the pressure higher than those of the heat exchange device only provided with the compensation wave), and the use cost of the heat exchange device is reduced (the maintenance cost of the heat exchange device is reduced and the replacement interval time of the heat exchange device is prolonged). More preferably, the connecting plate can be arranged in the wall plate or the tube plate, so that the structural coordination of the heat exchange device is improved, the structural requirements of different heat exchange devices are met, and meanwhile, the product diversification of the heat exchange device is realized.
2. In the invention, the connecting plate, the connecting component and the reinforcing ribs are all accommodated in the inner space of the compensation wave, and the compensation wave is arranged in the outer environment of the wallboard, so that the smoothness of the inner structure of the heat exchange device is ensured, the structural arrangement of a shell side or a tube side is prevented from being changed due to the arrangement of the expansion joint structure, the heat exchange area of the heat exchange device is prevented from being reduced due to the arrangement of the expansion joint structure, the heat exchange performance of the heat exchange device is prevented from being changed due to the expansion joint structure, and the structural strength of the heat exchange device is also ensured. More preferably, the setting of strengthening rib has further improved the structural strength of this expansion joint structure, has prolonged the life who sets up compensation ripples department to heat transfer device's life has been guaranteed. More preferably, two expansion joint structures are arranged in the same direction (namely the same straight line) of the heat exchange device to compensate expansion difference, so that the compensation capability is greatly improved, and the heat exchange device can bear larger temperature difference and deformation.
3. In the invention, the tube plate and the wallboard absorb the expansion difference of the tube plate and the wallboard through the connecting component capable of realizing the relative movement of the tube plate and the wallboard, so that the stress problem of the connecting part of the compensation wave and the tube plate or the wallboard is reduced, the tightness and the firmness of the connection of the connecting part are ensured, and the sealing performance and the service life of the connecting part are ensured. More preferably, the mode that coupling assembling realized is various, specifically can set up according to different demands, has improved heat transfer device's diversification.
Drawings
The above features, technical features, advantages and implementation modes of the expansion joint structure and the heat exchange device will be further described in the following description of the preferred embodiments with reference to the accompanying drawings in a clear and understandable manner.
FIG. 1 is a schematic illustration of an embodiment of an expansion joint structure of the present invention;
FIG. 2 is a schematic illustration of another embodiment of an expansion joint structure of the present invention;
FIG. 3 is a schematic diagram of an embodiment of the compensation wave of the present invention;
fig. 4 is a schematic structural view of an embodiment of the heat exchange device of the present invention.
Reference numerals illustrate:
1. Expansion joint structure, 11, compensation wave, 111, first end, 112, second end, 113, multi-wave structure, 114, single-wave structure, 12, connecting plate, 131, bolt, 132, nut, 133, connecting piece, 134, butt portion, 14, reinforcing rib, 15, strip hole, 2, tube plate, 3, wall plate, 4, heat exchange tube, 5, heat exchange space, 6, tube box.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will explain the specific embodiments of the present invention with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
For simplicity of the drawing, only the parts relevant to the present invention are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In one embodiment of the present invention, as shown in FIG. 1, an expansion joint structure includes: the compensation wave 11, the connecting plate 12 and the connecting assembly; the connecting plate 12 is arranged on one of the two parts of the tube plate 2 and the wall plate 3, so that the connecting plate 12 is overlapped with the part without the connecting plate 12 in space, and the connecting assembly penetrates through the connecting plate 12 and the part without the connecting plate 12 along the overlapping direction to realize the connection of the tube plate 2 and the wall plate 3, and the tube plate 2 and the wall plate 3 can move relatively; the first end 111 of the compensation wave 11 is connected with the tube plate 2 in a sealing way, and the second end 112 of the compensation wave 11 is connected with the wall plate 3 in a sealing way; the connection assembly is disposed in a space between the first end 111 and the second end 112. In practical application, one end of the compensation wave 11 is in sealing connection with the tube plate 2, the other end of the compensation wave 11 is in sealing connection with the wall plate 3, meanwhile, the problem of expansion difference between the tube plate 2 and the wall plate 3 is solved, and meanwhile, as the expansion deformation of the tube plate 2 is quickly absorbed by the compensation wave 11, the temperature difference stress of the tube plate 2 and the heat exchange tube 4 is greatly reduced, so that the heat exchange tube 4 is protected, and the service life of the heat exchange tube 4 is prolonged; the expansion difference of the heat exchange tube 4, the tube plate 2 and the wall plate 3 is quickly absorbed by the compensation wave 11, so that the temperature difference stress of two parts connected with each other in the three parts is reduced, the service life of the heat exchange device is prolonged, and the safety performance of the heat exchange device is improved. More preferably, the deformation capacity and the structural strength of the position where the compensation wave 11 is arranged are ensured through the arrangement of the connecting plate 12, so that the heat exchange device can normally work at higher operating temperature and operating pressure, and the application range and the application working condition of the heat exchange device are enlarged.
In another embodiment of the present invention, as shown in fig. 1 and 2, an expansion joint structure includes: the compensation wave 11, the connecting plate 12 and the connecting assembly; the connecting plate 12 is arranged on one of the two parts of the tube plate 2 and the wall plate 3, so that the connecting plate 12 is overlapped with the part without the connecting plate 12 in space, and the connecting assembly penetrates through the connecting plate 12 and the part without the connecting plate 12 along the overlapping direction to realize the connection of the tube plate 2 and the wall plate 3, and the tube plate 2 and the wall plate 3 can move relatively; the first end 111 of the compensation wave 11 is connected with the tube plate 2 in a sealing way, and the second end 112 of the compensation wave 11 is connected with the wall plate 3 in a sealing way; the connecting assembly is arranged in the space between the first end 111 and the second end 112; the compensation wave 11 is arranged outside the heat exchange space 5 formed by the surrounding of the tube plate 2 and the wall plate 3. Illustratively, as shown in fig. 3a and B, the compensating wave 11 includes a first connection portion in sealing connection with the tube sheet 2, a second connection portion in sealing connection with the wall plate 3, and an arc portion connecting the first connection portion and the second connection portion, respectively, the arc portion being disposed away from the first end 111 and the second end 112; the compensation wave 11 is provided in the external environment of the heat exchange space 5 where the heat exchange tubes 4 are installed in the wall plate 3 and the tube sheet 2. Of course, the compensation wave 11 may be provided in the heat exchange space 5 if conditions allow, but it is also within the scope of the present invention. Illustratively, as shown at a and B in fig. 3, the arcuate portions may be single wave structures 114 (i.e., one wave structure) or multi-wave structures 113 (i.e., multiple wave structures connected end to end). The multi-wave structure 113 can further improve the expansion difference absorption performance of the present expansion joint structure 1. It should be noted that the first end 111 and the second end 112 may be disposed flush or may be disposed at a height, specifically, according to the positional relationship between the tube sheet 2 and the wall plate 3.
In another embodiment of the present invention, as shown in fig. 1 and 2, an expansion joint structure includes: the compensation wave 11, the connecting plate 12 and the connecting assembly; the connecting plate 12 is arranged on one of the two parts of the tube plate 2 and the wall plate 3, so that the connecting plate 12 is overlapped with the part without the connecting plate 12 in space, and the connecting assembly penetrates through the connecting plate 12 and the part without the connecting plate 12 along the overlapping direction to realize the connection of the tube plate 2 and the wall plate 3, and the tube plate 2 and the wall plate 3 can move relatively; the first end 111 of the compensation wave 11 is connected with the tube plate 2 in a sealing way, and the second end 112 of the compensation wave 11 is connected with the wall plate 3 in a sealing way; the connecting assembly is arranged in the space between the first end 111 and the second end 112; the connecting plate 12 is arranged in the space between the first end 111 and the second end 112; the space between the first end 111 and the second end 112 is held to the connecting plate 12, namely the size of connecting plate 12 along the direction of stacking is less than the distance between the first end 111 and the second end 112 of compensation wave 11 to make connecting plate 12 can be close to compensation wave 11 one side setting, thereby guaranteed that this expansion structure shows only for compensation wave 11 in the external environment, and connecting plate 12 does not occupy heat exchange space 5 again, realized the concealed setting of connecting plate 12, improved heat transfer device's outward appearance aesthetic feeling and integrality. Preferably, the compensation wave 11 is provided in the outer environment of the wall plate 3 and the tube sheet 2 provided in the heat exchange space 5 where the heat exchange tubes 4 are installed. Illustratively, as shown in fig. 1, the connection plate 12 is disposed on the tube sheet 2, and the connection plate 12 is stacked above the wall plate 3, and a dimension of the connection plate 12 in a direction perpendicular to the stacking direction is smaller than a distance value between the first end 111 and the second end 112. It should be noted that, in practical application, the connection plate 12 may be disposed near the side of the heat exchange space 5, which is also included in the protection scope of the present invention. For example, as shown in fig. 1, when the connection plate 12 is disposed on the tube sheet 2, the connection plate 12 may also be stacked under the wall plate 3. As shown in fig. 2, when the connection plate 12 is provided to the wall plate 3, the connection plate 12 is provided near the side of the heat exchanging space 5. It should be noted that, when the connection plate 12 is disposed near the side of the heat exchanging space, the extension dimension of the connection plate 12 may be greater than, less than or equal to the distance value between the first end 111 and the second end 112. Preferably, as shown in fig. 1, the connection plate 12 is provided with a reinforcing rib 14, and the reinforcing rib 14 is preferably disposed near the side of the compensation wave 11, so that the reinforcing rib 14 is accommodated in the space between the first end 111 and the second end 112. The reinforcing ribs 14 are preferably rib-like structures, and the reinforcing ribs 14 are also connected with the members provided with the connecting plates 12, thereby improving the structural strength of the connecting plates 12 themselves, and improving the connection tightness and firmness of the connecting plates 12 with the members provided with themselves.
In another embodiment of the present invention, as shown in fig. 1, an expansion joint structure includes: the compensation wave 11, the connecting plate 12 and the connecting assembly; the connecting plate 12 is arranged on one of the two parts of the tube plate 2 and the wall plate 3, so that the connecting plate 12 is overlapped with the part without the connecting plate 12 in space, and the connecting assembly penetrates through the connecting plate 12 and the part without the connecting plate 12 along the overlapping direction to realize the connection of the tube plate 2 and the wall plate 3, and the tube plate 2 and the wall plate 3 can move relatively; the first end 111 of the compensation wave 11 is connected with the tube plate 2 in a sealing way, and the second end 112 of the compensation wave 11 is connected with the wall plate 3 in a sealing way; the connecting assembly is arranged in the space between the first end 111 and the second end 112; the connecting plate 12 and the parts without the connecting plate 12 are correspondingly provided with strip holes 15, and the connecting assembly penetrates through the two strip holes 15 to realize the connection of the tube plate 2 and the wall plate 3, and meanwhile, the tube plate 2 and the wall plate 3 can do relative movement. Preferably, the connecting assembly comprises a bolt 131 and a nut 132, wherein after the bolt 131 sequentially penetrates through the two strip holes 15, the nut 132 is respectively locked at two ends of the bolt 131 so as to realize connection of the tube plate 2 and the wall plate 3, and the bolt 131 can slide along the extending direction of the strip holes 15 so as to realize that the tube plate 2 and the wall plate 3 further absorb expansion differences of the two types through relative movement of the bolt 131. It should be noted that the extending direction of the elongated hole 15 is preferably the expansion difference direction between the tube sheet 2 and the wall plate 3. The long hole 15 can be replaced by a round hole with an inner diameter smaller than the outer diameter of the nut 132, and the aperture of the round hole is larger than the outer diameter of the bolt 131, so that the expansion difference between the tube plate 2 and the wall plate 3 in any direction is absorbed, the firmness and stability of connection between the tube plate 2 and the wall plate 3 are ensured, and the stress impact at the connection position of the compensation wave 11 and the tube plate 2 or the wall plate 3 caused by overlarge fluid impact or overlarge expansion difference between the tube plate 2 and the wall plate 3 is avoided. In practice, the bolts 131 may be stud bolts or single head bolts with bolt heads.
In another embodiment of the present invention, as shown in fig. 2, an expansion joint structure includes: the compensation wave 11, the connecting plate 12 and the connecting assembly; the connecting plate 12 is arranged on one of the two parts of the tube plate 2 and the wall plate 3, so that the connecting plate 12 is overlapped with the part without the connecting plate 12 in space, and the connecting assembly penetrates through the connecting plate 12 and the part without the connecting plate 12 along the overlapping direction to realize the connection of the tube plate 2 and the wall plate 3, and the tube plate 2 and the wall plate 3 can move relatively; the first end 111 of the compensation wave 11 is connected with the tube plate 2 in a sealing way, and the second end 112 of the compensation wave 11 is connected with the wall plate 3 in a sealing way; the connecting assembly is arranged in the space between the first end 111 and the second end 112; the connecting assembly comprises a connecting piece 133, one end of the connecting piece 133 is hinged with the inner wall of the part, which is not provided with the connecting plate 12, on the side close to the heat exchange space 5 (the tightness of the part is ensured), and the other end of the connecting piece 133 is movably connected with the connecting plate 12. Namely, the connecting plate 12 is provided with a through hole with a size larger than the outer diameter size of the connecting piece 133 corresponding to the connecting piece 133, the inner diameter of the through hole is smaller than the outer diameter size of the abutting portion 134 for connecting with the connecting piece 133, and the connecting piece 133 penetrates through the through hole and then is connected with the abutting portion 134, so that the tube plate 2 and the wall plate 3 can move relatively, and the expansion difference of the tube plate 2 and the wall plate 3 can be absorbed through relative movement of the connecting piece. It should be noted that, the connection assembly is preferably a rigid structure, and of course, the connection assembly may also be an elastic connection member, and when the connection assembly is an elastic connection member, the hole structure is not required to be provided to realize the relative movement of the tube plate 2 and the wall plate 3, and the expansion difference of the tube plate 2 and the wall plate 3 can be absorbed through the deformation capability of the elastic connection member. The elastic component can be a spring, a rubber column and the like.
In another embodiment of the present invention, as shown in fig. 1-4, a heat exchange device comprises: tube sheet 2, wall plate 3, heat exchange tube 4, expansion joint structure 1 of any of the above; the two tube plates 2 are oppositely arranged, a plurality of heat exchange tubes 4 are arranged on the two tube plates 2 in parallel, and two ends of the heat exchange tubes 4 are respectively exposed on the tube plates 2; the wall plate 3 is arranged between the two tube plates 2, and more than one expansion joint structure 1 is arranged between the wall plate 3 and the tube plates 2, so that the wall plate 3, the tube plates 2 and the compensation waves 11 of the expansion joint structure 1 are jointly enclosed to form a heat exchange space 5. Preferably, at least two expansion joint structures 1 are arranged along the same straight line. Preferably, an expansion joint structure 1 is arranged at each of four corners where the tube plate 2 and the wall plate 3 are connected. Of course, the expansion joint structure 1 may also be a circle of the contact between the wall plate 3 and the tube plate 2, that is, the expansion joint structure 1 is arranged around the wall plate 3 and the tube plate 2. The setting can be specifically performed according to actual needs. Preferably, each wall plate 3 is provided with a tube box 6 at the side remote from the heat exchange space 5, and the side walls of the heat exchange space 5 are provided with an inlet and an outlet for fluid flowing away from the shell side. Preferably, the heat exchanging space 5 is provided with a support plate for supporting the heat exchanging tube 4, which is provided with through holes for circulation of the circulation shell side.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (7)
1. An expansion joint structure, comprising:
the compensating wave, the connecting plate and the connecting assembly, wherein the connecting plate is provided with reinforcing ribs;
The connecting plate is arranged on one of the two parts of the tube plate and the wallboard, so that the connecting plate is overlapped with the part without the connecting plate in space, the connecting assembly is connected with the connecting plate and the part without the connecting plate along the overlapping direction so as to realize the connection of the tube plate and the wallboard, the tube plate and the wallboard are enclosed to form a heat exchange space, and the tube plate and the wallboard can do relative movement;
The first end of the compensation wave is in sealing connection with the tube plate, and the second end of the compensation wave is in sealing connection with the wall plate; the connecting component is arranged in a space between the first end and the second end;
The connecting assembly penetrates through the two strip holes to realize the connection of the tube plate and the wallboard, and meanwhile, the tube plate and the wallboard can be relatively moved; or the connecting component comprises a connecting piece, one end of the connecting piece is hinged to the inner wall of the part, which is not provided with the connecting plate, on the side close to the heat exchange space; the other end of the connecting piece is movably connected with the connecting plate.
2. The expansion joint structure according to claim 1, wherein:
The compensation wave is arranged on the outer side of the heat exchange space formed by surrounding the tube plate and the wall plate.
3. The expansion joint structure according to claim 1, wherein:
the connecting plate is arranged in a space between the first end and the second end.
4. An expansion joint structure according to any one of claims 1-3, wherein:
The connecting component is an elastic connecting piece.
5. An expansion joint structure according to any one of claims 1-3, wherein:
the compensation wave is of a single wave structure or a multi-wave structure.
6. A heat exchange device, comprising:
tube sheet, wall sheet, heat exchange tube, expansion joint structure according to any one of the preceding claims 1-5;
The two tube plates are oppositely arranged, a plurality of heat exchange tubes are arranged in parallel on the two tube plates, and two ends of each heat exchange tube are respectively exposed on the tube plates;
The wall plate is arranged between the two tube plates, and more than one expansion joint structure is arranged between the wall plate and the tube plates, so that compensation waves of the wall plate, the tube plates and the expansion joint structures are enclosed together to form a heat exchange space.
7. The heat exchange device of claim 6, wherein:
At least two of the expansion joint structures are arranged along the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870417.6A CN110440083B (en) | 2019-09-16 | 2019-09-16 | Expansion joint structure and heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870417.6A CN110440083B (en) | 2019-09-16 | 2019-09-16 | Expansion joint structure and heat exchange device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110440083A CN110440083A (en) | 2019-11-12 |
| CN110440083B true CN110440083B (en) | 2024-05-24 |
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| CN201910870417.6A Active CN110440083B (en) | 2019-09-16 | 2019-09-16 | Expansion joint structure and heat exchange device |
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| CN (1) | CN110440083B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110440083A (en) | 2019-11-12 |
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