A heat exchanger anti-vibration plate structure arranged in multiple groups in an interlaced manner
Patent Information
- Application Number
- CN202522137956.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-10-10
AI Technical Summary
而目前的U形换热器中高粘度易凝固介质（例如熔盐、导热油等）在流过换热管束的U形尾部的各换热管的外侧过程中时，对于温度和压力波动频繁的苛刻工况下防震效果不佳，且易造成流体阻力大局部流速低，形成死区，极易造成换热管缝隙间高粘度易凝固介质凝固结块，严重影响热量交换效果
本实用新型通过多组交替设置的防震板组A及防震板组B的配合设置，即上一组有设置防震板的位置处下一组没有设置防震板的交错排列方式，可使在保证防震效果、避免换热管松动磨损的同时，对高粘度易凝固介质在换热管束的U形尾部处流过时起到折流作用，消除了死区，增加热传导效率，避免粘稠介质凝固结块，改善了流体在换热管外侧的流动状态，降低高粘度易凝固流体的压力损失，换热器使用寿命也相对提高。
Smart Images
Figure CN224719271U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of shell-and-tube U-tube heat exchangers, which are widely used in the chemical industry. Specifically, it is a structure of multiple sets of staggered heat exchanger anti-vibration plates. Background Technology
[0002] In current U-shaped heat exchangers, several layers of heat exchange tubes are typically arranged from the inside to the outside within the main body of the heat exchanger. Each layer of heat exchange tubes consists of several heat exchange tubes evenly arranged longitudinally, and all layers of heat exchange tubes together form a heat exchange tube bundle. However, in current U-shaped heat exchangers, high-viscosity, easily solidified media (such as molten salt, heat transfer oil, etc.) do not provide good shock absorption under harsh operating conditions with frequent temperature and pressure fluctuations when flowing through the outer side of the heat exchange tubes at the U-shaped tail of the heat exchange tube bundle. This also easily leads to high fluid resistance and low local flow velocity, forming dead zones. Furthermore, it easily causes the high-viscosity, easily solidified media to solidify and agglomerate between the heat exchange tube gaps, severely affecting the heat exchange efficiency. Utility Model Content
[0003] A multi-set staggered heat exchanger shockproof plate structure is applicable to a heat exchanger whose main body cavity is provided with several layers of heat exchange tube groups from the inside to the outside. Each layer of heat exchange tube group includes several heat exchange tubes uniformly arranged in the longitudinal direction. All layers of heat exchange tube groups together form a heat exchange tube bundle. In the heat exchange tube bundle, several gap layers are formed between every two layers of heat exchange tube groups arranged sequentially from the inside to the outside. The heat exchanger anti-vibration plate structure proposed in this utility model includes at least one set of anti-vibration plate group A and at least one set of anti-vibration plate group B. Each set of anti-vibration plate group A and each set of anti-vibration plate group B are uniformly and alternately arranged along the axial direction of the U-shaped tail of the heat exchange tube bundle. All interlayer layers in the heat exchange tube bundle are divided into even-numbered layers and odd-numbered layers. Each of the aforementioned shock-absorbing plate groups A includes several shock-absorbing plates A and two fixing strips A. The shock-absorbing plates A of each shock-absorbing plate group A are arranged sequentially along the axis perpendicular to the U-shaped tail of the heat exchange tube bundle. The shock-absorbing plates A of each shock-absorbing plate group A are respectively arranged in the gap layer of each even-numbered layer in the heat exchange tube bundle. The two sides of each shock-absorbing plate A of each shock-absorbing plate group A are respectively provided with arc-shaped grooves A that match the outer diameter of each heat exchange tube of the heat exchange tube bundle on both sides of the shock-absorbing plate A. The top of each shock-absorbing plate A of each shock-absorbing plate group A is fixedly connected to one of the fixing strips A of the same shock-absorbing plate group A, and the bottom of each shock-absorbing plate A of each shock-absorbing plate group A is fixedly connected to the other fixing strip A of the same shock-absorbing plate group A. The two fixing strips A of each shock-absorbing plate group A are respectively fixedly connected to the inner wall of the heat exchanger main body cavity. Each shock-absorbing plate group B includes several shock-absorbing plates B and two fixing strips B. The shock-absorbing plates B of each shock-absorbing plate group B are arranged sequentially along the axis perpendicular to the U-shaped tail of the heat exchange tube bundle. The shock-absorbing plates B of each shock-absorbing plate group B are respectively arranged in the gap layer of each odd-numbered layer in the heat exchange tube bundle. The two sides of each shock-absorbing plate B of each shock-absorbing plate group B are respectively provided with arc-shaped grooves B that match the outer diameter of each heat exchange tube of the heat exchange tube bundle on both sides of the shock-absorbing plate B. The top of each shock-absorbing plate B of each shock-absorbing plate group B is fixedly connected to one of the fixing strips B of the same shock-absorbing plate group B, and the bottom of each shock-absorbing plate B of each shock-absorbing plate group B is fixedly connected to the other fixing strip B of the same shock-absorbing plate group B. The two fixing strips B of each shock-absorbing plate group B are respectively fixedly connected to the inner wall of the heat exchanger main body cavity.
[0004] Both the arc-shaped groove A and the arc-shaped groove B are semi-circular.
[0005] All the shock-absorbing plates A in each individual shock-absorbing plate group A and all the shock-absorbing plates B in another individual shock-absorbing plate group B are formed by dividing the same circular plate.
[0006] When the number of heat exchanger tube bundles in the heat exchanger tube bundle is an odd number greater than 1, each of the anti-vibration plate groups A further includes an anti-vibration plate C. The anti-vibration plate C of each of the anti-vibration plate groups A is respectively disposed on the inner side of the heat exchanger tube bundle located in the innermost layer. The anti-vibration plate C of each of the anti-vibration plate groups A has an arc-shaped groove C that matches the outer diameter of each heat exchanger tube in the heat exchanger tube bundle located in the innermost layer. The top end of the anti-vibration plate C of each of the anti-vibration plate groups A is fixedly connected to one of the fixing strips A of the same anti-vibration plate group A, and the bottom end of the anti-vibration plate C of each of the anti-vibration plate groups A is fixedly connected to another fixing strip A of the same anti-vibration plate group A.
[0007] When the number of heat exchanger tube groups in the heat exchanger tube bundle is an odd number greater than 1, each of the anti-vibration plate groups B also includes an anti-vibration plate D. The anti-vibration plate D of each of the anti-vibration plate groups B is respectively disposed on the outside of the heat exchanger tube group located in the outermost layer. The anti-vibration plate D of each of the anti-vibration plate groups B has an arc-shaped groove D that matches the outer diameter of each heat exchanger tube in the heat exchanger tube group located in the outermost layer. The top end of the anti-vibration plate D of each of the anti-vibration plate groups B is fixedly connected to one of the fixing strips B of the same anti-vibration plate group B, and the bottom end of the anti-vibration plate D of each of the anti-vibration plate groups B is fixedly connected to another fixing strip B of the same anti-vibration plate group B.
[0008] The advantages and positive effects of this utility model are as follows: This invention utilizes a combination of multiple alternating sets of shock-absorbing plate groups A and B, where the next set does not have a shock-absorbing plate in one of the previous sets. This staggered arrangement ensures shock absorption and prevents loosening and wear of the heat exchange tubes. Simultaneously, it acts as a flow deflector for high-viscosity, easily solidified media flowing through the U-shaped tail of the heat exchange tube bundle, eliminating dead zones, increasing heat transfer efficiency, preventing viscous media from solidifying and agglomerating, improving the flow state of the fluid outside the heat exchange tubes, reducing pressure loss of high-viscosity, easily solidified fluids, and relatively extending the service life of the heat exchanger. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the U-shaped tail section of the heat exchanger tube bundle in this utility model. Figure 2 This is a schematic diagram of the structure of the U-shaped heat exchanger to which this utility model applies; Figure 3 This is a structural schematic diagram of one of the shock-absorbing plates A of this utility model; Figure 4 for Figure 1 A schematic diagram of the installation structure of the anti-vibration plate group A at section AA; Figure 5 for Figure 1 A schematic diagram of the installation structure of the anti-vibration plate group B at section BB; Figure 6 for Figure 1 A schematic diagram of the installation structure of the anti-vibration plate group A at the CC section; Figure 7 for Figure 1 A schematic diagram of the assembly process of the shock-absorbing plate A at section AA; Figure 8 for Figure 1 A schematic diagram of the assembly process of the shock-absorbing plate B at section BB; Figure 9 for Figure 1 A schematic diagram of the assembly process of the shock-absorbing plate A at the CC section.
[0010] In the diagram: 1 is the shock absorber group A, 101 is the shock absorber A, 1011 is the arc-shaped groove A, 102 is the fixing strip A, 103 is the shock absorber C, and 1031 is the arc-shaped groove C; 2 is the shock-absorbing plate group B, 201 is the shock-absorbing plate B, 2011 is the arc-shaped groove B, 202 is the fixing strip B, 203 is the shock-absorbing plate D, and 2031 is the arc-shaped groove D; 001 is the main cavity of the heat exchanger, 0011 is the inlet of the high-viscosity, easily solidified medium, 0012 is the outlet of the high-viscosity, easily solidified medium, 002 is the heat exchange tube bundle, and 0021 is the heat exchange tube. Detailed Implementation
[0011] The following is in conjunction with the appendix Figure 1-9 The present invention will be described in further detail.
[0012] like Figure 2 and Figure 1 As shown, the heat exchanger to which this invention is applicable has a high-viscosity, easily solidified medium inlet 0011 and a high-viscosity, easily solidified medium outlet 0012 on its main body cavity 001. In this embodiment, several layers of heat exchange tube assemblies are arranged from the inside to the outside in the main body cavity 001 of the heat exchanger. Each layer of heat exchange tube assembly includes several heat exchange tubes 0021 uniformly arranged longitudinally. All layers of heat exchange tube assemblies together form a heat exchange tube bundle 002. Several gap layers are formed between every two layers of heat exchange tube assemblies arranged sequentially from the inside to the outside in the heat exchange tube bundle 002. All gap layers in the heat exchange tube bundle 002 are divided into even-numbered layers and odd-numbered layers. The high-viscosity, easily solidified medium enters the main body cavity 001 of the heat exchanger from the high-viscosity, easily solidified medium inlet 0011 and flows on the outside of each heat exchange tube 002, exchanging heat with the heat exchange tubes 002. Then it flows out from the high-viscosity, easily solidified medium outlet 0012. The arrangement of the heat exchanger main cavity 001 and the heat exchange tube 002 are both existing technologies.
[0013] like Figure 1 and Figure 3-9 As shown, the multi-set staggered heat exchanger anti-vibration plate structure proposed in this utility model includes at least one set of anti-vibration plate group A1 and at least one set of anti-vibration plate group B2. Each set of anti-vibration plate group A1 and each set of anti-vibration plate group B2 are uniformly and alternately arranged along the axial direction of the U-shaped tail of the heat exchange tube bundle 002. In this embodiment, two sets of anti-vibration plate groups A1 are provided, respectively located at... Figure 1 Sections AA and CC; one set of anti-vibration plate group B2 is installed, located at... Figure 1 Cross-section at point BB.
[0014] like Figure 3-9As shown, each vibration damping plate group A1 includes several vibration damping plates A101 and two fixing strips A102. The vibration damping plates A101 of each vibration damping plate group A1 are arranged sequentially along the axis perpendicular to the U-shaped tail of the heat exchange tube bundle 002. The vibration damping plates A101 of each vibration damping plate group A1 are respectively located in the gap layers of each even-numbered layer in the heat exchange tube bundle 002. Each vibration damping plate A101 of each vibration damping plate group A1 has arc-shaped grooves A1011 on both sides that match the outer diameter of each heat exchange tube 0021 of the heat exchange tube bundle on both sides of the vibration damping plate A101. The top end of each vibration damping plate A101 of each vibration damping plate group A1 is fixedly connected to one of the fixing strips A102 of the same vibration damping plate group A1 by welding. The bottom end of each vibration damping plate A101 of each vibration damping plate group A1 is fixed to one of the fixing strips A102 of the same vibration damping plate group A1. Another fixing strip A102 of 1 is fixed by welding, and the two fixing strips A102 of each shock-absorbing plate group A1 are fixed to the inner wall of the heat exchanger body cavity 001 by welding respectively. Each vibration damping plate group B2 includes several vibration damping plates B201 and two fixing strips B202. The vibration damping plates B201 of each vibration damping plate group B2 are sequentially arranged along an axis perpendicular to the U-shaped tail of the heat exchange tube bundle 002. The vibration damping plates B201 of each vibration damping plate group B2 are respectively located in the gap layers of each odd-numbered layer in the heat exchange tube bundle 002. Each vibration damping plate B201 of each vibration damping plate group B2 has arc-shaped grooves B2011 on both sides that match the outer diameter of each heat exchange tube 0021 of the heat exchange tube bundle on both sides of the vibration damping plate B201. The top end of each vibration damping plate B201 of each vibration damping plate group B2 is fixedly welded to one of the fixing strips B202 of the same vibration damping plate group B2, and the bottom end of each vibration damping plate B201 is fixed to the other fixing strip B202 of the same vibration damping plate group B2. 202 are fixed by welding, with the two fixing strips B 202 of each anti-vibration plate group B 2 being fixed to the inner wall of the heat exchanger main body cavity 001 by welding. That is, if the even-numbered gap layer at each cross-section is provided with anti-vibration plate A 101, the odd-numbered gap layer at the same cross-section is not provided with anti-vibration plate B 201. In addition, the odd-numbered gap layers at adjacent cross-sections are provided with anti-vibration plate B 201, while the even-numbered gap layers are not provided with anti-vibration plate A 101. The heat exchange tube 0021 is respectively embedded in the arc-shaped groove B 2011 of the anti-vibration plate B 201 and the arc-shaped groove A 1011 of the anti-vibration plate A 101. The anti-vibration plate A 101 and the anti-vibration plate B 201 can respectively play a role in anti-vibration of the heat exchange tube 0021. In this embodiment, the structure of all fixing strips A 102 and all fixing strips B 202 can be basically the same, which is convenient for replacement.
[0015] Specifically, in this embodiment, when the number of heat exchange tube bundles 002 is an odd number greater than 1, each shock-absorbing plate group A1 further includes a shock-absorbing plate C103. The shock-absorbing plate C103 of each shock-absorbing plate group A1 is respectively disposed on the inner side of the heat exchange tube bundle located in the innermost layer. The shock-absorbing plate C103 of each shock-absorbing plate group A1 has an arc-shaped groove C1031 that matches the outer diameter of each heat exchange tube 0021 of the heat exchange tube bundle located in the innermost layer. The top end of the shock-absorbing plate C103 of each shock-absorbing plate group A1 is fixedly connected to one of the fixing strips A102 of the same shock-absorbing plate group A1, and the bottom end of the shock-absorbing plate C103 of each shock-absorbing plate group A1 is fixedly connected to another fixing strip A102 of the same shock-absorbing plate group A1. When the number of heat exchanger tube bundles 002 is an odd number greater than 1, each anti-vibration plate group B2 also includes an anti-vibration plate D203. The anti-vibration plate D203 of each anti-vibration plate group B2 is respectively located on the outside of the outermost layer of heat exchanger tube bundles. Each anti-vibration plate D203 of each anti-vibration plate group B2 has an arc-shaped groove D2031 that matches the outer diameter of each heat exchanger tube 0021 of the outermost layer of heat exchanger tube bundles. The top of the anti-vibration plate C103 of each anti-vibration plate group B2 is fixedly connected to one of the fixing strips B202 of the same anti-vibration plate group B2, and the bottom of the anti-vibration plate D203 of each anti-vibration plate group B2 is fixedly connected to the other fixing strip B202 of the same anti-vibration plate group B2. When the number of heat exchanger tube bundles 002 is an even number greater than 1, additional anti-vibration plates can be installed according to usage requirements. The installation of anti-vibration plates C103 and D203 provides additional anti-vibration protection for the innermost and outermost sides of the heat exchange tube bundle 002, respectively. The assembly processes of anti-vibration plates C103, A101, and 0021, as well as B201, D203, and 0021, can be found in [references to be inserted here]. Figure 7-9 Each set of anti-vibration plate group A1 and anti-vibration plate group B2 is assembled at the same time as the heat exchange tube group of each layer.
[0016] Specifically, in this embodiment, both the arc-shaped groove A 1011 and the arc-shaped groove B 2011 are semi-circular. All the shock-absorbing plates A 101 in each individual shock-absorbing plate group A 1 and all the shock-absorbing plates B 201 in another individual shock-absorbing plate group B 2 are formed by dividing the same circular plate. In this embodiment, holes are drilled in a single stainless steel circular plate according to the distribution of all heat exchange tubes 0021 in the heat exchange tube bundle 002 using a CNC machining center. The plate is then divided into strips along the center of the holes to form shock-absorbing plates A 101 and B 201. Shock-absorbing plates C 103 and D 203 can also be produced simultaneously. The thickness of shock-absorbing plates A 101, B 201, C 103, and D 203 is 6 mm. The corresponding arc-shaped grooves A 1011 and B 2011 on the shock-absorbing plate A 101 and shock-absorbing plate B 201 produced by the above processing method are all semi-circular and can achieve high processing precision. The shock-absorbing plate A 101 and shock-absorbing plate B 201 themselves also have a certain thickness, and the contact area with the heat exchange tube 0021 is large, which can play a good role in shock absorption, effectively avoid the loosening and wear of the heat exchange tube 0021, and extend the service life of the heat exchanger.
[0017] Working principle: By using multiple alternating sets of anti-vibration plate groups A1 and B2, i.e., the staggered arrangement where the next group does not have an anti-vibration plate in the previous group, the anti-vibration effect is ensured, preventing loosening and wear of heat exchange tube 0021. At the same time, it also acts as a flow deflector for high-viscosity, easily solidified media flowing through the U-shaped tail of the heat exchange tube bundle (the flow pattern of high-viscosity, easily solidified media between heat exchange tubes 0021 is as follows...). Figure 1 (As indicated by the arrow) This eliminates dead zones, increases heat transfer efficiency, prevents viscous media from solidifying and agglomerating, improves the flow state of fluids outside heat exchange tube 0021, reduces pressure loss of high-viscosity, easily solidified fluids, and relatively extends the service life of the heat exchanger.
Claims
1. A multi-set staggered heat exchanger anti-vibration plate structure, wherein the heat exchanger body cavity (001) of the applicable heat exchanger is provided with several layers of heat exchange tube groups from the inside to the outside, each layer of heat exchange tube group includes several heat exchange tubes (0021) uniformly arranged in the longitudinal direction, and all layers of heat exchange tube groups together form a heat exchange tube bundle (002), and several gap layers are formed between every two layers of heat exchange tube groups arranged sequentially from the inside to the outside in the heat exchange tube bundle (002); The heat exchanger anti-vibration plate structure is characterized by: including at least one set of anti-vibration plate group A (1) and at least one set of anti-vibration plate group B (2), wherein each of the anti-vibration plate group A (1) and each of the anti-vibration plate group B (2) are uniformly and alternately arranged along the axial direction of the U-shaped tail of the heat exchange tube bundle (002); all interlayer layers in the heat exchange tube bundle (002) are divided into even-numbered layers and odd-numbered layers. Each of the aforementioned shock-absorbing plate groups A (1) includes several shock-absorbing plates A (101) and two fixing strips A (102). Each shock-absorbing plate A (101) of each of the aforementioned shock-absorbing plate groups A (1) is arranged sequentially along the axial direction perpendicular to the U-shaped tail of the heat exchange tube bundle (002). The shock-absorbing plates A (101) of each of the aforementioned shock-absorbing plate groups A (1) are respectively arranged in the gap layer of each even-numbered layer in the heat exchange tube bundle (002). The two sides of the shock-absorbing plates A (101) of each of the aforementioned shock-absorbing plate groups A (1) are respectively provided with heat exchange with the two sides of the shock-absorbing plate A (101). The outer diameter of each heat exchange tube (0021) of the tube group is matched with the arc-shaped groove A (1011). The top of the shock-absorbing plate A (101) of each shock-absorbing plate group A (1) is fixedly connected to one of the fixing strips A (102) of the same shock-absorbing plate group A (1). The bottom of the shock-absorbing plate A (101) of each shock-absorbing plate group A (1) is fixedly connected to the other fixing strip A (102) of the same shock-absorbing plate group A (1). The two fixing strips A (102) of each shock-absorbing plate group A (1) are respectively fixedly connected to the inner wall of the heat exchanger body cavity (001). Each shock-absorbing plate group B (2) includes several shock-absorbing plates B (201) and two fixing strips B (202). The shock-absorbing plates B (201) of each shock-absorbing plate group B (2) are arranged sequentially along the axis perpendicular to the U-shaped tail of the heat exchange tube bundle (002). The shock-absorbing plates B (201) of each shock-absorbing plate group B (2) are respectively arranged in the gap layer of each odd-numbered layer in the heat exchange tube bundle (002). The two sides of the shock-absorbing plates B (201) of each shock-absorbing plate group B (2) are respectively provided with heat exchange with the two sides of the shock-absorbing plate B (201). The outer diameter of each heat exchange tube (0021) of the tube group is matched with the arc-shaped groove B (2011). The top of the shock-absorbing plate B (201) of each shock-absorbing plate group B (2) is fixed to one of the fixing strips B (202) of the same shock-absorbing plate group B (2). The bottom of the shock-absorbing plate B (201) of each shock-absorbing plate group B (2) is fixed to the other fixing strip B (202) of the same shock-absorbing plate group B (2). The two fixing strips B (202) of each shock-absorbing plate group B (2) are respectively fixed to the inner wall of the heat exchanger body cavity (001).
2. The heat exchanger anti-vibration plate structure with multiple sets of staggered arrangements according to claim 1, characterized in that: Both the arc-shaped groove A (1011) and the arc-shaped groove B (2011) are semi-circular.
3. The heat exchanger anti-vibration plate structure with multiple sets of staggered arrangement according to claim 2, characterized in that: All the shock-absorbing plates A (101) of each individual shock-absorbing plate group A (1) and all the shock-absorbing plates B (201) of another individual shock-absorbing plate group B (2) are formed by dividing the same circular plate.
4. The heat exchanger anti-vibration plate structure with multiple sets of staggered arrangements according to claim 1, characterized in that: When the number of heat exchange tube bundles (002) is an odd number greater than 1, each shock-absorbing plate group A (1) also includes a shock-absorbing plate C (103). The shock-absorbing plate C (103) of each shock-absorbing plate group A (1) is respectively set on the inner side of the heat exchange tube bundle located in the innermost layer. The shock-absorbing plate C (103) of each shock-absorbing plate group A (1) is provided with an arc-shaped groove C (1031) that matches the outer diameter of each heat exchange tube (0021) of the heat exchange tube bundle located in the innermost layer. The top end of the shock-absorbing plate C (103) of each shock-absorbing plate group A (1) is fixedly connected to one of the fixing strips A (102) of the same shock-absorbing plate group A (1), and the bottom end of the shock-absorbing plate C (103) of each shock-absorbing plate group A (1) is fixedly connected to another fixing strip A (102) of the same shock-absorbing plate group A (1).
5. The heat exchanger anti-vibration plate structure with multiple sets of staggered arrangements according to claim 1, characterized in that: When the number of heat exchange tube bundles (002) is an odd number greater than 1, each shock-absorbing plate group B (2) also includes a shock-absorbing plate D (203). The shock-absorbing plate D (203) of each shock-absorbing plate group B (2) is respectively set on the outside of the heat exchange tube bundle located in the outermost layer. The shock-absorbing plate D (203) of each shock-absorbing plate group B (2) is provided with an arc-shaped groove D (2031) that matches the outer diameter of each heat exchange tube (0021) of the heat exchange tube bundle located in the outermost layer. The top end of the shock-absorbing plate D (203) of each shock-absorbing plate group B (2) is fixedly connected to one of the fixing strips B (202) of the same shock-absorbing plate group B (2), and the bottom end of the shock-absorbing plate D (203) of each shock-absorbing plate group B (2) is fixedly connected to another fixing strip B (202) of the same shock-absorbing plate group B (2).