CN109883243B - Support device for heat exchanger - Google Patents
Support device for heat exchanger Download PDFInfo
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- CN109883243B CN109883243B CN201910195836.4A CN201910195836A CN109883243B CN 109883243 B CN109883243 B CN 109883243B CN 201910195836 A CN201910195836 A CN 201910195836A CN 109883243 B CN109883243 B CN 109883243B
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Abstract
The invention discloses a supporting device for a heat exchanger, which comprises: the multiunit supporting unit is used for supporting 3n rows of heat exchange tubes of the heat exchanger jointly, wherein, the single group of supporting unit includes: the first supporting plate is used for supporting the 1 st, 4 th, 7 th, 10 th,. 1+3(n-1) rows of heat exchange tubes of the heat exchanger; the second supporting plate is used for supporting the 2 nd, 5 th, 8 th, 11 th,. 2+3(n-1) row of heat exchange tubes of the heat exchanger; and a third support plate for supporting the 3 rd, 6 th, 9 th, 12 th,. 3+3(n-1) th rows of heat exchange tubes of the heat exchanger.
Description
Technical Field
The embodiment of the invention relates to the field of heat exchange, in particular to a supporting device for a heat exchanger.
Background
In nuclear power industry and chemical industry, a heat exchanger is a process device with high utilization rate, and a plurality of heat exchange tubes which are axially arranged are utilized to realize heat exchange between tube side fluid and shell side fluid. Generally, the two ends of the heat exchange tube are firmly connected with the tube plate in a sealing manner (for example, by welding and expansion joint), the total length of the heat exchange tube can reach dozens of meters, and a supporting device is required to support the middle part of the heat exchange tube.
In the heat exchanger, a supporting device for supporting the heat exchange pipe is one of important parts. The support device mainly plays a role in supporting the tube bundle, reducing the vibration of the tube bundle and guiding the flowing direction of shell-side fluid. The structure of the supporting device is adapted to the space, span, arrangement mode and the like of the tube bundle. In the prior art, the support device mainly comprises an arched support plate and a full-circle support plate.
Fig. 1 shows a schematic structural view of an arcuate support plate, which is obtained by cutting a circular plate into different portions, each of which is arranged along the axial direction of a heat exchange tube, and each of which is used for supporting a portion of the heat exchange tube and allowing fluid to flow through upper and lower notches alternately in an "S" shape, as shown in fig. 1. Fig. 2 shows a schematic structural diagram of a full-circle support plate, wherein the support holes are circular holes, rectangular holes and quincunx holes. In the circular hole supporting plate, a supporting hole for fixing the heat exchange tube and a circulating hole for passing a fluid are arranged; in the rectangular hole supporting plate and the quincuncial hole supporting plate, gaps are reserved between the supporting holes and the heat exchange tubes when the heat exchange tubes can be fixed, and the supporting holes are used for allowing fluid to pass through.
However, for the arched support plate, fluid passes through the round-off part of the support plate in the heat exchanger and sweeps across the tube bundle vertically, and repeatedly flows in the shell pass, and when the shell pass fluid flows, a flow dead zone and a heat transfer dead zone are formed in the turning zone and the fluid stagnation areas at the inlet end and the outlet end; and the shell pass fluid transversely scours the tube bundle, easily causes flow-induced vibration, and causes damage to the heat exchanger. For the whole circular support plate, because the flow area of the fluid at the support plate is smaller, if the number of the support plates is too large, the flow resistance of the fluid on the shell side in the heat exchanger is too large, the requirement of the heat exchanger on a driving pressure head can be increased, the energy is consumed, and the cost is increased.
Disclosure of Invention
The main object of the present invention is to provide a support device for a heat exchanger, solving at least one of the above technical problems.
According to an aspect of the present invention, there is provided a support device for a heat exchanger, comprising: the multiunit supporting unit is used for supporting 3n rows of heat exchange tubes of the heat exchanger jointly, wherein, the single group of supporting unit includes: the first supporting plate is used for supporting the 1 st, 4 th, 7 th, 10 th,. 1+3(n-1) rows of heat exchange tubes of the heat exchanger; the second supporting plate is used for supporting the 2 nd, 5 th, 8 th, 11 th,. 2+3(n-1) row of heat exchange tubes of the heat exchanger; and a third support plate for supporting the 3 rd, 6 th, 9 th, 12 th,. 3+3(n-1) th rows of heat exchange tubes of the heat exchanger.
According to some embodiments, the plurality of sets of support units are arranged in the axial direction of the heat exchange tube, and the first support plate, the second support plate, and the third support plate of the single set of support units are arranged in the axial direction of the heat exchange tube.
According to some embodiments, the first support plate, the second support plate, and the third support plate of each group of support units are arranged in the same order.
According to some embodiments, the first support plate, the second support plate and the third support plate each comprise: n rows of annular support parts for matching with the heat exchange tubes supported by the support parts respectively, and a frame for connecting the support parts in each row.
According to some embodiments, the single row of supporting parts includes a plurality of supporting parts connected two by two.
According to some embodiments, the first support plate, the second support plate and the third support plate each comprise: and the annular connecting parts are used for connecting the supporting parts of adjacent rows and/or connecting the supporting parts of a single row with the frame.
According to some embodiments, the first support plate, the second support plate and the third support plate each comprise: a plurality of mounting holes for mounting the first support plate, the second support plate and the third support plate to a plurality of tie rods, respectively.
According to some embodiments, the heat exchange tubes are arranged in a regular triangular manner.
According to some embodiments, the heat exchange tubes have a center-to-center spacing of at least 1.25 times the outer diameter dimension of the heat exchange tubes.
According to some embodiments, the inner diameter of the support is at least equal to the outer diameter of the heat exchange tube, and the inner diameter of the support is at most 2mm larger than the outer diameter of the heat exchange tube.
In the supporting device for the heat exchanger according to the embodiment of the invention, the first supporting plate, the second supporting plate and the third supporting plate for supporting different rows of heat exchange tubes in a staggered manner are arranged, so that a shell-side fluid can pass through the unsupported parts of the supporting plates, the flow area of the fluid is large, the flow resistance is small, the requirement of the heat exchanger on a driving pressure head can be reduced, and the supporting device is beneficial to saving energy and cost; and because each support plate is used for supporting the heat exchange tubes arranged at intervals, a plurality of flow paths of shell-side fluid can be formed in the middle of each support plate, so that the support plates can be prevented from forming a circular segment similar to an arched support plate, the problems of flow dead zones and flow-induced vibration can be avoided, the reliability of the heat exchanger can be improved, and the service life of the heat exchanger can be prolonged.
Drawings
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.
FIG. 1 is a schematic view of a prior art arcuate support plate;
FIG. 2 is a schematic structural diagram of a whole circular support plate in the prior art, wherein the support holes are circular holes, rectangular holes and quincunx holes;
fig. 3 shows a schematic structural view of a support device for a heat exchanger according to an exemplary embodiment of the present invention;
figure 4 shows a schematic view of the structure of a first support plate of the support device of figure 3;
FIG. 5 shows a schematic structural view of a second support plate of the support device of FIG. 3; and
fig. 6 shows a schematic structural view of a third support plate of the support device of fig. 3.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components.
In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
Fig. 3 shows a schematic structural view of a supporting device 100 for a heat exchanger according to an exemplary embodiment of the present invention. As shown in fig. 3, the supporting device 100 includes: a plurality of sets of supporting units 10 for supporting 3n rows of heat exchange tubes of the heat exchanger together, wherein the single set of supporting units 10 includes: the first supporting plate 11 is used for supporting the 1 st, 4 th, 7 th, 10 th,. 1+3(n-1) rows of heat exchange tubes of the heat exchanger; a second support plate 12 for supporting the 2 nd, 5 th, 8 th, 11 th,. 2+3(n-1) th rows of heat exchange tubes of the heat exchanger; and a third support plate 13 for supporting the 3 rd, 6 th, 9 th, 12.. 3+3(n-1) th rows of heat exchange tubes of the heat exchanger. In the supporting device 100 for the heat exchanger according to the embodiment of the invention, the first supporting plate 11, the second supporting plate 12 and the third supporting plate 13 for supporting different rows of heat exchange tubes in a staggered manner are arranged, so that a shell-side fluid can pass through the unsupported parts of the supporting plates, the flow area of the fluid is large, the flow resistance is small, the requirement of the heat exchanger on a driving pressure head can be reduced, and the energy and the cost can be saved; and because each support plate is used for supporting the heat exchange tubes arranged at intervals, a plurality of flow paths of shell-side fluid can be formed in the middle of each support plate, so that the support plates can be prevented from forming a circular segment similar to an arched support plate, the problems of flow dead zones and flow-induced vibration can be avoided, the reliability of the heat exchanger can be improved, and the service life of the heat exchanger can be prolonged.
The heat exchanger is used for transferring part of heat of hot fluid to cold fluid, and is an industrial application of heat conduction and convection heat transfer. Heat exchangers can be classified into three main categories according to the principle and mode of heat exchange between cold and hot fluids: dividing wall type, mixed type and heat storage type. Among the three types of heat exchangers, the dividing wall type heat exchanger is most used. The dividing wall type heat exchanger features that the cold and hot fluids are separated by a layer of solid wall (pipe or plate), do not mix with each other and exchange heat through the dividing wall. Among them, a shell-and-tube (also called shell and tube) heat exchanger is the most typical dividing wall type heat exchanger. Two fluids for heat exchange in a shell-and-tube heat exchanger, wherein one fluid flows in a tube, and the stroke of the fluid is called as a tube pass; one type of flow outside the tube is referred to as the shell side. The wall surface of the tube bundle is the heat transfer surface. The fluid is referred to as one tube pass per pass of the tube bundle within the tube and as one shell pass per pass of the shell.
The heat exchanger has important application in the field of reactor engineering. For example, the intermediate heat exchanger is a heat exchange device for connecting a primary loop and a secondary loop of the main heat transmission system of the pool type sodium-cooled fast reactor, and is used for realizing heat exchange between liquid sodium; in addition, the sodium-water steam generator of the sodium-cooled fast reactor is used for transferring the heat of the two-loop sodium to the three-loop water, so that the three-loop water is preheated, evaporated and superheated to provide qualified steam required by a steam turbine, and simultaneously, sodium and a water medium are isolated, and the application of the heat exchanger is also provided. For the sodium-water steam generator, liquid sodium flows through the shell pass, vapor/liquid two-phase water flows through the tube pass, and the requirement on the safety and reliability of the supporting device of the heat exchange tube bundle is very high. The support device 100 of the invention has small flow resistance, can avoid the problems of flow dead zone and flow-induced vibration, has high safety and reliability, and is particularly suitable for sodium-water steam generators.
The arrangement form of the heat exchange tubes on the tube plate mainly comprises regular triangles, squares, corner regular triangles, corner squares and the like, wherein the arrangement form of the regular triangles can arrange the most tubes on the same tube plate area, and the use is most common. The support device 100 of the present invention is particularly suitable for heat exchange tubes arranged in a regular triangular manner. The heat exchange tubes may comprise 3n rows of heat exchange tubes, in order, for example, from left to right, n being any suitable positive integer.
The first supporting plate 11 is used for supporting the 1 st, 4 th, 7 th, 10 th,. 1+3(n-1) rows of heat exchange tubes of the heat exchanger, that is, for supporting two rows of heat exchange tubes which are sequentially spaced from the first row of heat exchange tubes to the right, and the rows of the heat exchange tubes supported by the first supporting plate 11 form an arithmetic progression with the initial value of 1 and the tolerance of 3. The second support plate 12 is used for supporting the 2 nd, 5 th, 8 th, 11 th,. 2+3(n-1) row of heat exchange tubes of the heat exchanger, that is, for supporting the heat exchange tubes which are sequentially spaced two rows from the second row of heat exchange tubes to the right, and the rows of the heat exchange tubes supported by the second support plate 12 form an arithmetic progression with the first term of 2 and the tolerance of 3. The third supporting plate 13 is used for supporting the 3 rd, 6 th, 9 th, 12 th,. 3+3(n-1) row of heat exchange tubes of the heat exchanger, that is, for supporting two rows of heat exchange tubes which are sequentially spaced from the third row of heat exchange tubes to the right, and the rows of the heat exchange tubes supported by the third supporting plate 13 form an arithmetic progression with the first term of 3 and the tolerance of 3. The first support plate 11, the second support plate 12 and the third support plate 13 of the single group of support units 10 cooperate together to support 3n rows of heat exchange tubes of the heat exchanger. The multiple groups of supporting units 10 can provide multiple supports for all 3n rows of heat exchange tubes to enhance the supporting effect, so that the heat exchange tubes are more stably installed, and the vibration is reduced.
The plural sets of support units 10 are arranged in the axial direction of the heat exchange tube, and the first support plate 11, the second support plate 12 and the third support plate 13 of the single set of support units 10 are arranged in the axial direction of the heat exchange tube. For example, the groups of support units 10 may each be repeatedly arranged in the order of the first support plate 11, the second support plate 12, and the third support plate 13 in the top-to-bottom direction. When the shell-side fluid flows to the position of the first support plate 11, the part of the first support plate 11 for supporting the heat exchange tubes blocks the shell-side fluid from passing through, and the shell-side fluid can flow along the outer walls of the spaced rows of heat exchange tubes which are not supported by the first support plate 11 without being blocked; when the shell-side fluid reaches the position of the second support plate 12, the part of the second support plate 12 for supporting the heat exchange tubes blocks the shell-side fluid from passing through, and the shell-side fluid can flow along the outer walls of the spaced rows of heat exchange tubes which are not supported by the second support plate 12 without being blocked; when the shell-side fluid reaches the position of the third support plate 13, the part of the third support plate 13 for supporting the heat exchange tubes blocks the shell-side fluid from passing through, and the shell-side fluid can flow along the outer walls of the spaced rows of heat exchange tubes which are not supported by the third support plate 13 without being blocked. Therefore, the shell-side fluid can wriggle along the tube walls of the heat exchange tubes in the adjacent rows and flow with small resistance and uniform flow, namely, a plurality of flow paths of the shell-side fluid are arranged in the middle of each support plate, and the problems of flow dead zones and flow-induced vibration can be avoided unlike the traditional arched support plates in which the fluid can only pass through the gap parts of the support plates. And the part of each supporting plate which does not support the heat exchange tube occupies a larger area, so that a larger flow area can be provided for the shell-side fluid.
In the embodiment of the present invention, the first support plate 11, the second support plate 12, and the third support plate 13 of each group of support units 10 are arranged in the same order. Thus, for the same row of heat exchange tubes, the heat exchange tubes can be commonly supported by the first support plates 11 of each group of support units 10, and two support plates (a second support plate 12 and a third support plate 13) are arranged between the adjacent first support plates 11; or can be supported by the second support plates 12 of each group of support units 10 together, and two support plates (third support plate 13 and first support plate 11) are arranged between the adjacent second support plates 12; or may be supported by the third support plates 13 of each group of support units 10 together, and two support plates (the first support plate 11 and the second support plate 12) are spaced between adjacent third support plates 13. The maximum unsupported span of the heat exchange tube is the distance between the supporting plates of the same type.
Fig. 4 shows a schematic structural view of the first support plate 11 of the support device 100 of fig. 3; fig. 5 shows a schematic structural view of the second support plate 12 of the support device 100 of fig. 3; and figure 6 shows a schematic view of the structure of the third support plate 13 of the support device 100 of figure 3. Referring to fig. 3 to 6 together, the first support plate 11, the second support plate 12 and the third support plate 13 each include: n rows of annular support portions 14 for fitting with the respective supported heat exchange tubes, and a frame 15 for connecting the rows of support portions 14. The annular support portion 14 and the frame 15 are both hollow out. The middle hollow part of the supporting part 14 of the first supporting plate 11 is used for allowing the heat exchange tubes of the 1 st, 4 th, 7 th, 10.. 1+3(n-1) th rows supported by the first supporting plate 11 to pass through, and the outer hollow part of the supporting part 14 of the first supporting plate 11 is used for allowing the heat exchange tubes not supported by the first supporting plate 11 to pass through and providing a circulation space for shell-side fluid. The middle hollow part of the supporting part 14 of the second supporting plate 12 is used for allowing the heat exchange tubes of the 2 nd, 5 th, 8 th, 11 th,. 2+3(n-1) th rows supported by the second supporting plate 12 to pass through, and the outer hollow part of the supporting part 14 of the second supporting plate 12 is used for allowing the heat exchange tubes not supported by the second supporting plate 12 to pass through and providing a circulation space for the shell-side fluid. The middle hollow part of the supporting part 14 of the third supporting plate 13 is used for allowing the 3 rd, 6 th, 9 th, 12 th,. 3+3(n-1) th rows of heat exchange tubes supported by the third supporting plate 13 to pass through, and the outer hollow part of the supporting part 14 of the third supporting plate 13 is used for allowing the heat exchange tubes not supported by the third supporting plate 13 to pass through and providing a circulation space for shell-side fluid. The rows of supports 14 are connected to a frame 15, which together form a grid-like structure. The frame 15 may be circular for mating with the heat exchanger cartridge.
The single row of support portions 14 may include a plurality of support portions 14, the plurality of support portions 14 being connected two by two. Since the annular support portion 14 is hollowed out on both the inside and outside, it is necessary to connect the plurality of support portions 14 in each row to each other and connect the support portions 14 in each row to the frame 15. The joint between the two supporting parts 14 corresponds to the gap between the two heat exchange tubes.
Further, the first support plate 11, the second support plate 12, and the third support plate 13 may further each include: a plurality of annular connecting portions 16 for connecting adjacent rows of support portions 14 and/or for connecting a single row of support portions 14 to the frame 15. Because the positions of the two rows of heat exchange tubes are spaced between the rows of supporting parts 14, the strength of each supporting plate may not be sufficient under the condition of high safety and reliability requirements. The connection portions 16 may reinforce the strength of the respective support plates in a direction different from the connection direction of the support portions 14, and reinforce the connection strength between the respective rows of the support portions 14 and the bezel 15. The connecting part 16 is designed into a ring shape, so that the arrangement of the heat exchange tube and the circulation of shell-side fluid are not influenced on the basis of enhancing the structural strength. The diameter of the connecting portion 16 may be larger than the diameter of the supporting portion 14. The connecting portions 16 may be disposed between the support portions 14 of adjacent rows as desired, or between the support portions 14 of a single row and the bezel 15 as desired.
The first support plate 11, the second support plate 12, and the third support plate 13 may further each include: a plurality of mounting holes 17 for mounting the first support plate 11, the second support plate 12, and the third support plate 13 to the plurality of tie rods, respectively. In the heat exchanger, a plurality of tie rods are provided between the upper and lower tube sheets to provide mounting locations for the support device 100. The plurality of tie rods penetrate into the plurality of mounting holes 17, and the connection mode of the plurality of tie rods and each mounting plate can be welding. The plurality of mounting holes 17 may be symmetrically arranged on the bezel 15.
In the embodiment of the present invention, the support device 100 is used to support the specification (outer diameter dimension D) of the heat exchange pipe0Range of (d) without limitation. The center distance S of the heat exchange tube is at least the external diameter D of the heat exchange tube01.25 times of that of the previous step, namely S is more than or equal to 1.25D0There is no upper limit. The center distance S refers to the distance between the centers of the adjacent heat exchange tubes. The supporting part 14 is used for matching with the heat exchange tube, the supporting part 14 needs to be penetrated by the heat exchange tube, and the inner diameter of the supporting part cannot be too small; while the support 14 needs to carry out heat exchange with the heat exchanger tubeThe support prevents the heat exchange pipe from vibrating, and the inner diameter of the support cannot be too large. In an embodiment of the invention, the support portion 14 has an inner diameter dimension
The minimum is equal to the external diameter D of the heat exchange tube0Inner diameter of the support part 14
Maximum outer diameter D of the heat exchange tube02mm larger, i.e. the inner diameter of the support 14
In the range of D0～D0+2 mm. The supporting device 100 can be applied to all metal materials. The thickness of each support plate along the extending direction of the heat exchange tube is not limited. The first support plate 11, the second support plate 12 and the third support plate 13 can be formed by machining round plates by a turning and milling process.
The supporting device 100 of the invention can be suitable for the heat exchange tube bundle arranged in a regular triangle of the once-through sodium-water steam generator, and solves the following technical problems on the basis of not influencing the heat exchange effect and the equipment reliability of the sodium-water steam generator:
1. the problems of flow dead zone and flow-induced vibration caused by the adoption of the arched supporting plate are avoided;
2. the problem of overlarge flow resistance of shell pass fluid caused by the adoption of a conventional full-circle supporting plate is avoided.
The support device 100 of the present invention has at least two advantages:
1. the basic tube bundle arrangement structure characteristics of the sodium-water steam generator are ensured, the problems of flow dead zone and flow-induced vibration caused by adopting a conventional support plate form are avoided, and the reliability and the service life of the heat exchanger are improved;
2. the shell pass flow resistance of the heat exchanger is reduced, and the requirement of a system loop where the steam generator is located on a driving pressure head is reduced.
In summary, the support device 100 of the present invention is beneficial to both the heat exchanger apparatus itself and the system, and can reduce the cost of the power station as a whole.
In practical use, the number and arrangement of the supporting parts 14 required to be arranged in the plurality of groups of the supporting units 10, namely the first supporting plate 11, the second supporting plate 12 and the third supporting plate 13, can be determined according to the arrangement of the heat exchange tubes. The inner diameter of the supporting part 14 and the inner diameter of the mounting hole 17 can be determined according to the requirement of the gap between the heat exchange tube and the supporting part 14 and the requirement of the matching between the pull rod and the mounting hole 17. According to the practical application, the detailed supporting size and thickness of the first supporting plate 11, the second supporting plate 12 and the third supporting plate 13 can be determined, the processing and manufacturing requirements can be determined, and the round plates which are used for turning and milling the supporting plates and meet the requirements can be selected. The actual span and the number of the first support plate 11, the second support plate 12 and the third support plate 13 can be determined according to the requirement of the minimum unsupported span of the heat exchange tube and the requirement of flow-induced vibration. When the supporting device 100 is manufactured, the round forged piece can be turned and milled according to the drawing requirements, and then the first supporting plate 11, the second supporting plate 12 and the third supporting plate 13 are arranged and fixed according to the requirements, and pipe penetration is performed.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of embodiments of the invention and should not be construed as limiting the invention. The various components in the drawings are not to scale in order to clearly illustrate the details of the various components, and so the proportions of the various components in the drawings should not be taken as limiting.
Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.
Claims (9)
1. A support device for a heat exchanger, comprising:
the multiunit supporting unit is used for supporting 3n rows of heat exchange tubes of the heat exchanger jointly, wherein, the single group of supporting unit includes:
the first supporting plate is used for supporting the 1 st, 4 th, 7 th, 10 th, … 1+3(n-1) th rows of heat exchange tubes of the heat exchanger;
a second support plate for supporting the 2 nd, 5 th, 8 th, 11 th, … 2 nd 2+3 th (n-1) row of heat exchange tubes of the heat exchanger; and
a third support plate for supporting the 3 rd, 6 th, 9 th, 12 th, … 3 rd and 3 rd (n-1) rows of heat exchange tubes of the heat exchanger;
the multiple groups of supporting units are arranged along the axial direction of the heat exchange tube, and the first supporting plate, the second supporting plate and the third supporting plate of the single group of supporting units are arranged along the axial direction of the heat exchange tube.
2. The supporting device as claimed in claim 1, wherein the first supporting plate, the second supporting plate and the third supporting plate of each group of supporting units are arranged in the same order.
3. The support device of claim 1, wherein the first support plate, the second support plate, and the third support plate each comprise:
n rows of annular support portions for cooperation with the respective supported heat exchange tubes, and
and the frame is used for being connected with each row of supporting parts.
4. The support device of claim 3, wherein the single row of support portions comprises a plurality of support portions connected two by two.
5. The support device of claim 3, wherein the first support plate, the second support plate, and the third support plate each comprise:
and the annular connecting parts are used for connecting the supporting parts of adjacent rows and/or connecting the supporting parts of a single row with the frame.
6. The support device of claim 1, wherein the first support plate, the second support plate, and the third support plate each comprise:
a plurality of mounting holes for mounting the first support plate, the second support plate and the third support plate to a plurality of tie rods, respectively.
7. The support device of claim 1, wherein the heat exchange tubes are arranged in a regular triangular pattern.
8. The support device of claim 1, wherein the heat exchange tubes have a center-to-center spacing of at least 1.25 times an outer diameter dimension of the heat exchange tubes.
9. The support device of claim 3, wherein the support portion has an inner diameter dimension at least equal to an outer diameter dimension of the heat exchange tube, and the inner diameter dimension of the support portion is at most 2mm greater than the outer diameter dimension of the heat exchange tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910195836.4A CN109883243B (en) | 2019-03-14 | 2019-03-14 | Support device for heat exchanger |
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| CN201910195836.4A CN109883243B (en) | 2019-03-14 | 2019-03-14 | Support device for heat exchanger |
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| CN109883243A CN109883243A (en) | 2019-06-14 |
| CN109883243B true CN109883243B (en) | 2020-08-21 |
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| CN111161895B (en) * | 2020-01-02 | 2022-03-11 | 中国原子能科学研究院 | Support device for a nuclear reactor assembly and positioning method |
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|---|---|---|---|---|
| EP0122544A1 (en) * | 1983-04-15 | 1984-10-24 | BELLELI S.p.A. | Tube nest support for heat exchangers |
| JPH09189496A (en) * | 1996-01-09 | 1997-07-22 | Mitsubishi Heavy Ind Ltd | Device for preventing vibration of heat-exchanger tube |
| JP2003279287A (en) * | 2002-03-25 | 2003-10-02 | Central Res Inst Of Electric Power Ind | Heat transfer pipe support structure of steam generator |
| CN1906456A (en) * | 2003-12-22 | 2007-01-31 | 国际壳牌研究有限公司 | Support for a tube bundle |
| CN202048835U (en) * | 2011-03-15 | 2011-11-23 | 天津大学 | Cone-shaped tube bundle support member and tube shell type heat exchanger equipped with tube bundle support member |
| CN107747881A (en) * | 2017-10-30 | 2018-03-02 | 佛山科学技术学院 | The shell-and-tube heat exchanger of square pore full-circle spray pattern supporting plate substitution segmental baffle |
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2019
- 2019-03-14 CN CN201910195836.4A patent/CN109883243B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0122544A1 (en) * | 1983-04-15 | 1984-10-24 | BELLELI S.p.A. | Tube nest support for heat exchangers |
| JPH09189496A (en) * | 1996-01-09 | 1997-07-22 | Mitsubishi Heavy Ind Ltd | Device for preventing vibration of heat-exchanger tube |
| JP2003279287A (en) * | 2002-03-25 | 2003-10-02 | Central Res Inst Of Electric Power Ind | Heat transfer pipe support structure of steam generator |
| CN1906456A (en) * | 2003-12-22 | 2007-01-31 | 国际壳牌研究有限公司 | Support for a tube bundle |
| CN202048835U (en) * | 2011-03-15 | 2011-11-23 | 天津大学 | Cone-shaped tube bundle support member and tube shell type heat exchanger equipped with tube bundle support member |
| CN107747881A (en) * | 2017-10-30 | 2018-03-02 | 佛山科学技术学院 | The shell-and-tube heat exchanger of square pore full-circle spray pattern supporting plate substitution segmental baffle |
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