A positioning structure of a detachable plate heat exchanger plate
Patent Information
- Application Number
- CN202522097899.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-09-29
AI Technical Summary
[0003]然而，在组装过程中通常先将板片与密封垫叠加，随后利用压紧杆、定位杆及夹紧螺栓等夹紧板片组，该方式存在固有缺陷：为便于板片套入定位杆，定位孔与定位杆之间需预留一定装配间隙（通常0.5-1mm），当板片数量较多（如超过30片）时，间隙的累积误差会导致板片整体偏移，使得相邻板片的波纹流道、密封垫槽口无法精准对齐，导致组装效率低下、密封失效风险增加、传热性能下降
[0012]与现有技术相比，本实用新型的优点在于：一种可拆式板式换热器板片的定位结构，在换热板片的四个角位置设计谷、脊，在板片组装叠加时，提高了定位精准，避免了相邻板片的波纹流道、密封垫槽口无法精准对齐，提高组装效率和密封性。
Smart Images
Figure CN224787794U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a positioning structure for detachable plate heat exchanger plates, belonging to the technical field of plate heat exchanger. Background Technology
[0002] Detachable plate heat exchangers are a type of plate heat exchanger. As a highly efficient and energy-saving heat exchange device, they are widely used in HVAC systems, chemical processes, food processing, and other fields due to their high heat transfer efficiency, compact structure, and convenient assembly and disassembly. Their core structure typically includes several heat transfer plates with specific corrugated structures, elastic sealing gaskets for sealing the plate edges and flow channels, pressure plates, positioning rods, and clamping bolts. During operation, the cold and hot media flow in opposite directions within the flow channels formed by adjacent plates, exchanging heat through the heat conduction of the plates. The corrugated structure design enhances the turbulence of the media, further improving the heat transfer coefficient.
[0003] However, during the assembly process, the plates and gaskets are usually stacked first, and then the plates are clamped together using clamping rods, positioning rods, and clamping bolts. This method has inherent defects: in order to facilitate the plates to fit into the positioning rods, a certain assembly gap (usually 0.5-1mm) needs to be reserved between the positioning holes and the positioning rods. When there are many plates (such as more than 30 pieces), the cumulative error of the gap will cause the plates to shift as a whole, making it impossible for the corrugated flow channels and gasket grooves of adjacent plates to be accurately aligned, resulting in low assembly efficiency, increased risk of sealing failure, and decreased heat transfer performance. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a positioning structure for detachable plate heat exchanger plates, which improves positioning accuracy during plate assembly and stacking, avoids misalignment of corrugated flow channels and sealing gasket grooves of adjacent plates, and improves assembly efficiency and sealing performance.
[0005] The technical solution adopted by this utility model to solve the above problems is as follows: a positioning structure for detachable plate heat exchanger plates, including heat exchange plates, wherein a first positioning angle, a second positioning angle, a third positioning angle and a fourth positioning angle are respectively provided on the four corners of the front of the heat exchange plate. The first positioning angle on the heat exchange plate cooperates with the fourth positioning angle on the adjacent heat exchange plate, the second positioning angle on the heat exchange plate cooperates with the third positioning angle on the adjacent heat exchange plate, the third positioning angle on the heat exchange plate cooperates with the second positioning angle on the adjacent heat exchange plate, and the fourth positioning angle on the heat exchange plate cooperates with the first positioning angle on the adjacent heat exchange plate.
[0006] The first positioning angle includes a first boss and a first groove. The top surface of the first boss is provided with a first valley. A fifth ridge is formed on the back side of the first groove, a sixth ridge is formed on the back side of the first valley, and a fourth valley is formed on the back side of the first boss. The fifth ridge, the fourth valley, and the sixth ridge constitute the fifth positioning angle.
[0007] The second positioning angle includes a second boss and a first ridge. The top surface of the second boss is provided with a second ridge. A fourth groove is formed on the back of the first ridge, a third valley is formed on the back of the second boss, and a third groove is formed on the back of the second ridge. The third groove, the third valley, and the fourth groove constitute a sixth positioning angle.
[0008] The third positioning angle includes a third boss and a third ridge. The top surface of the third boss is provided with a fourth ridge. A fifth groove is formed on the back of the third ridge, a sixth valley is formed on the back of the third boss, and a sixth groove is formed on the back of the fourth ridge. The sixth valley, the fifth groove, and the sixth groove constitute a seventh positioning angle.
[0009] The fourth positioning angle includes a fourth boss and a second groove. The top surface of the fourth boss is provided with a second valley. A seventh ridge is formed on the back side of the second groove, a fifth valley is formed on the back side of the fourth boss, and an eighth ridge is formed on the back side of the second valley. The fifth valley, the seventh ridge, and the eighth ridge constitute the eighth positioning angle.
[0010] The first protrusion, the first valley, the first groove, the first ridge, the second protrusion, the second ridge, the third ridge, the third protrusion, the fourth ridge, the fourth protrusion, the second valley, and the second groove are all arc-shaped.
[0011] The first positioning angle of the heat exchange plate can also cooperate with the sixth positioning angle of the adjacent heat exchange plate; the second positioning angle of the heat exchange plate can also cooperate with the fifth positioning angle of the adjacent heat exchange plate; the third positioning angle of the heat exchange plate can cooperate with the eighth positioning angle of the adjacent heat exchange plate; the fourth positioning angle of the heat exchange plate can also cooperate with the seventh positioning angle of the adjacent heat exchange plate to form a plate heat exchanger of another specification and size.
[0012] Compared with the prior art, the advantages of this utility model are: a positioning structure for detachable plate heat exchanger plates, with valleys and ridges designed at the four corners of the heat exchange plates, which improves the positioning accuracy when the plates are assembled and stacked, avoids the inaccurate alignment of the corrugated flow channels and sealing gasket grooves of adjacent plates, and improves assembly efficiency and sealing performance. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the positioning structure of a detachable plate heat exchanger plate according to an embodiment of the present utility model. Figure 2 This is a schematic diagram of the second heat exchange plate (the structure after the heat exchange plate is rotated horizontally by 180°). Figure 3This is a schematic diagram of the third heat exchange plate (the structure of the heat exchange plate after being rotated 180° from the front). Figure 4 This is a schematic diagram of the first positioning angle; Figure 5 This is a schematic diagram of the second positioning angle; Figure 6 This is a schematic diagram of the third positioning angle; Figure 7 This is a schematic diagram of the fourth positioning angle; Figure 8 This is a schematic diagram showing the stacking of the fourth positioning angle, the first positioning angle, and the fourth positioning angle; Figure 9 This is a schematic diagram showing the stacking of the third positioning angle, the second positioning angle, and the third positioning angle; Figure 10 This is a schematic diagram showing the stacking of the second positioning angle, the third positioning angle, and the second positioning angle; Figure 11 This is a schematic diagram showing the stacking of the first positioning angle, the fourth positioning angle, and the first positioning angle; Figure 12 This is a schematic diagram of the fifth positioning angle; Figure 13 This is a schematic diagram of the sixth positioning angle; Figure 14 This is a schematic diagram of the seventh positioning angle; Figure 15 This is a schematic diagram of the eighth positioning angle; Figure 16 This is a schematic diagram showing the stacking of the first positioning angle, the sixth positioning angle, and the first positioning angle; Figure 17 This is a schematic diagram showing the stacking of the second positioning angle, the fifth positioning angle, and the second positioning angle; Figure 18 This is a schematic diagram showing the stacking of the third positioning angle, the eighth positioning angle, and the third positioning angle; Figure 19 This is a schematic diagram showing the stacking of the fourth positioning angle, the seventh positioning angle, and the fourth positioning angle; In the figure, 1 is the heat exchange plate, 1.1 is the plate body, 2 is the first positioning angle, 2.1 is the first boss, 2.2 is the first valley, 2.3 is the first groove, 3 is the second positioning angle, 3.1 is the first ridge, 3.2 is the second boss, 3.3 is the second ridge, 4 is the third positioning angle, 4.1 is the third ridge, 4.2 is the third boss, 4.3 is the fourth ridge, 5 is the fourth positioning angle, 5.1 is the fourth boss, 5.2 is the second valley, 5.3 is the second groove, 6 is the fifth positioning angle, 6.1 is the fifth ridge, 6.2 is the fourth valley, 6.3 is the sixth ridge, 7 is the sixth positioning angle, 7.1 is the third valley, 7.2 is the third groove, 7.3 is the fourth groove, 8 is the seventh positioning angle, 8.1 is the fifth groove, 8.2 is the sixth valley, 8.3 is the sixth groove, 9 is the eighth positioning angle, 9.1 is the seventh ridge, 9.2 is the fifth valley, 9.3 is the eighth ridge. Detailed Implementation
[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0015] like Figure 1 , 4As shown in Figures 5, 6, 7, 12, 13, 14, and 15, the positioning structure of a detachable plate heat exchanger plate in this embodiment includes heat exchange plates. The heat exchange plates 1 have four positioning corners on their front sides: a first positioning corner 2, a second positioning corner 3, a third positioning corner 4, and a fourth positioning corner 5. The first positioning corner 2 includes a first boss 2.1 and a first groove 2.3. The first boss 2.1 is located outside the first groove 2.3, and the top surface of the first boss 2.1 has a first valley 2.2. The back side of the first positioning corner is a fifth positioning corner 6, which includes a fifth ridge 6.1 and a fourth valley 6.2. The fifth ridge 6.1 is located inside the fourth valley 6.2, and the top surface of the fourth valley 6.2 has a sixth ridge 6.3. The back side of the first groove forms the fifth ridge, the back side of the first valley forms the sixth ridge, and the back side of the first boss forms the fourth valley. The second positioning angle 3 includes a second boss 3.2 and a first ridge 3.1. The first ridge 3.1 is located inside the second boss 3.2, and the top surface of the second boss 3.2 has a second ridge 3.3. The back side of the second positioning angle is the sixth positioning angle 7, which includes a fourth groove 7.3 and a third valley 7.1. The fourth groove 7.3 is located inside the third valley 7.1, and the top surface of the third valley 7.1 has a third groove 7.2. The back side of the first ridge forms the fourth groove, the back side of the second boss forms the third valley, and the back side of the second ridge forms the third groove. The third positioning angle 4 includes a third boss 4.2 and a third ridge 4.1. The third boss 4.2 is located inside the third ridge 4.1, and the top surface of the third boss has a fourth ridge 4.3. The back side of the third positioning angle is the seventh positioning angle 8, which includes a sixth valley 8.2 and a fifth groove 8.1. The sixth valley is located inside the fifth groove, and the top surface of the sixth valley has a sixth groove 8.3. The third ridge forms a fifth groove on its back side, the third boss forms a sixth valley on its back side, and the fourth ridge forms a sixth groove on its back side. The fourth positioning angle 5 includes a fourth boss 5.1 and a second groove 5.3. The fourth boss is located inside the second groove, and the top surface of the fourth boss has a second valley 5.2. The back side of the fourth positioning angle is the eighth positioning angle 9, which includes a fifth valley 9.2 and a seventh ridge 9.1. The fifth valley 9.2 is located inside the seventh ridge, and the top surface of the fifth valley has an eighth ridge 9.3. The second groove forms a seventh ridge 9.1 on its back side, the fourth boss forms a fifth valley on its back side, and the second valley forms an eighth ridge on its back side.
[0016] The first protrusion, the first valley, the first groove, the first ridge, the second protrusion, the second ridge, the third ridge, the third protrusion, the fourth ridge, the fourth protrusion, the second valley, and the second groove are all arc-shaped. Example 1
[0017] A plate heat exchanger includes several sets of stacked heat exchange plates. Each heat exchange plate set includes a first heat exchange plate and a second heat exchange plate. The first heat exchange plate is the first heat exchange plate, and the second heat exchange plate is a structural component formed by horizontally rotating the first heat exchange plate by 180°. The first positioning angle of the first heat exchange plate mates with the fourth positioning angle of the adjacent second heat exchange plate. The second positioning angle of the first heat exchange plate mates with the third positioning angle of the adjacent second heat exchange plate. The third positioning angle of the first heat exchange plate mates with the second positioning angle of the adjacent second heat exchange plate. The fourth positioning angle of the first heat exchange plate mates with the first positioning angle of the adjacent second heat exchange plate. Figure 8 , 9 As shown in Figures 10 and 11, taking the stacking sequence of second heat exchange plate - first heat exchange plate - second heat exchange plate from top to bottom as an example, the back side of the second groove (seventh ridge) is embedded in the first valley, the back side of the first groove (fifth ridge) is embedded in the second valley, the bottom of the back panel of the second heat exchange plate is in contact with the top surface of the first boss of the first heat exchange plate, and the bottom of the back panel of the first heat exchange plate is in contact with the top surface of the fourth boss of the second heat exchange plate. The back side of the third ridge (fifth groove) is embedded with the second ridge, the back side of the first ridge (fourth groove) is embedded with the fourth ridge, the bottom of the back panel of the second heat exchange plate is in contact with the top surface of the second boss of the first heat exchange plate, and the bottom of the back panel of the first heat exchange plate is in contact with the top surface of the third boss of the second heat exchange plate. The fourth ridge is embedded in the back of the first ridge (fourth groove), and the fifth groove is embedded in the back of the third ridge. The bottom of the back panel of the second heat exchange plate is in contact with the top surface of the third protrusion of the first heat exchange plate, and the bottom of the back panel of the first heat exchange plate is in contact with the top surface of the second protrusion of the second heat exchange plate. The fifth ridge is embedded in the back of the first groove, and the seventh ridge is embedded in the back of the second groove. The bottom of the back panel of the second heat exchange plate is in contact with the top surface of the fourth protrusion of the first heat exchange plate, and the bottom of the back panel of the first heat exchange plate is in contact with the top surface of the first protrusion of the second heat exchange plate. After the positioning angles of the heat exchange plates are completed, multiple sets of heat exchange plates are locked together by locking bolts and locking nuts to form a plate heat exchanger of one specification. Example 2
[0018] A plate heat exchanger comprises several sets of stacked heat exchange plates. Each heat exchange plate set includes a first heat exchange plate and a third heat exchange plate. The first heat exchange plate is the first heat exchange plate, and the third heat exchange plate is a structural component formed by rotating the first heat exchange plate 180° (i.e., the back of the first heat exchange plate becomes the front of the third heat exchange plate). The first positioning angle of the first heat exchange plate mates with the sixth positioning angle of the adjacent third heat exchange plate. The second positioning angle of the first heat exchange plate mates with the fifth positioning angle of the adjacent third heat exchange plate. The third positioning angle of the first heat exchange plate mates with the eighth positioning angle of the adjacent third heat exchange plate. The fourth positioning angle of the first heat exchange plate mates with the seventh positioning angle of the adjacent third heat exchange plate. Figure 16 , 17As shown in Figures 18 and 19, taking the stacking sequence of first heat exchange plate - third heat exchange plate - first heat exchange plate from top to bottom as an example, the back of the first groove (fifth ridge) is embedded in the fourth groove, the back of the third groove (second ridge) is embedded in the first valley, and the back of the third valley (second protrusion) is in contact with the first protrusion. The fifth ridge is embedded in the back of the first ridge (fourth groove); the second ridge is embedded in the back of the sixth ridge (first valley), and the back of the fourth valley (first protrusion) is in contact with the second protrusion. The seventh ridge is embedded in the back of the third ridge (fifth groove), the fourth ridge is embedded in the back of the eighth ridge (second valley), and the back of the fifth valley (fourth protrusion) is in contact with the third protrusion. The seventh ridge is embedded in the back of the second groove, the fourth ridge is embedded in the back of the sixth groove (fourth ridge), and the back of the sixth valley (third protrusion) is in contact with the fourth protrusion. After the positioning angles of the heat exchange plates are completed, multiple sets of heat exchange plates are locked together by locking bolts and locking nuts to form a heat exchanger of another specification. The third heat exchange plate formed after the first heat exchange plate is rotated 180° can also be assembled and stacked with the first heat exchange plate. The flow channel formed by the stacked flow channel and the second heat exchange plate formed by rotating the heat exchange plate horizontally 180° is different from the flow channel of the first heat exchange plate. That is, one heat exchange plate can form two different types of heat exchangers.
[0019] During assembly, the first and second heat exchange plates are arranged alternately, or the first and third heat exchange plates are arranged alternately, forming a mesh channel between the plates, creating two independent flow channels. During operation, the two media to be heat exchanged enter the independent flow channels of the heat exchanger from their respective inlets, and then flow together. The high-temperature medium gradually transfers heat indirectly to the low-temperature medium through the metal walls of the plates (because the flow channels are independent and there are sealing strips to isolate the two media, they do not mix directly), thus achieving energy exchange. Finally, they flow out of the heat exchanger from their respective flow channel outlets.
[0020] This application designs valleys and ridges at the four corners of the heat exchange plates, which improves positioning accuracy during plate assembly and stacking, avoids misalignment of the corrugated flow channels and sealing gasket grooves of adjacent plates, and improves assembly efficiency and sealing performance.
[0021] The valley and ridge design at the four corners of the heat exchange plates not only satisfies the assembly and stacking of the first and second heat exchange plates, but also satisfies the assembly and stacking of the first and third heat exchange plates. Moreover, the two flow channels are different after stacking, that is, one type of heat exchange plate can form two different types of heat exchangers, which has a wide range of applications.
[0022] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.
Claims
1. A positioning structure for detachable plate heat exchanger plates, characterized in that: The device includes heat exchange plates, each with a first positioning angle, a second positioning angle, a third positioning angle, and a fourth positioning angle on its four corners. The first positioning angle on the heat exchange plate engages with the fourth positioning angle on the adjacent heat exchange plate, the second positioning angle on the heat exchange plate engages with the third positioning angle on the adjacent heat exchange plate, the third positioning angle on the heat exchange plate engages with the second positioning angle on the adjacent heat exchange plate, and the fourth positioning angle on the heat exchange plate engages with the first positioning angle on the adjacent heat exchange plate.
2. The positioning structure of a detachable plate heat exchanger plate according to claim 1, characterized in that: The first positioning angle includes a first boss and a first groove. The top surface of the first boss is provided with a first valley. A fifth ridge is formed on the back side of the first groove, a sixth ridge is formed on the back side of the first valley, and a fourth valley is formed on the back side of the first boss. The fifth ridge, the fourth valley, and the sixth ridge constitute the fifth positioning angle.
3. The positioning structure of a detachable plate heat exchanger plate according to claim 2, characterized in that: The second positioning angle includes a second boss and a first ridge. The top surface of the second boss is provided with a second ridge. A fourth groove is formed on the back of the first ridge, a third valley is formed on the back of the second boss, and a third groove is formed on the back of the second ridge. The third groove, the third valley, and the fourth groove constitute a sixth positioning angle.
4. The positioning structure of a detachable plate heat exchanger plate according to claim 3, characterized in that: The third positioning angle includes a third boss and a third ridge. The top surface of the third boss is provided with a fourth ridge. A fifth groove is formed on the back of the third ridge, a sixth valley is formed on the back of the third boss, and a sixth groove is formed on the back of the fourth ridge. The sixth valley, the fifth groove, and the sixth groove constitute a seventh positioning angle.
5. The positioning structure for a detachable plate heat exchanger plate according to claim 4, characterized in that: The fourth positioning angle includes a fourth boss and a second groove. The top surface of the fourth boss is provided with a second valley. A seventh ridge is formed on the back side of the second groove, a fifth valley is formed on the back side of the fourth boss, and an eighth ridge is formed on the back side of the second valley. The fifth valley, the seventh ridge, and the eighth ridge constitute the eighth positioning angle.
6. The positioning structure for a detachable plate heat exchanger plate according to claim 5, characterized in that: The first protrusion, the first valley, the first groove, the first ridge, the second protrusion, the second ridge, the third ridge, the third protrusion, the fourth ridge, the fourth protrusion, the second valley, and the second groove are all arc-shaped.
7. The positioning structure for a detachable plate heat exchanger plate according to claim 5, characterized in that: The first positioning angle of the heat exchange plate can also cooperate with the sixth positioning angle of the adjacent heat exchange plate; the second positioning angle of the heat exchange plate can also cooperate with the fifth positioning angle of the adjacent heat exchange plate; the third positioning angle of the heat exchange plate can cooperate with the eighth positioning angle of the adjacent heat exchange plate; the fourth positioning angle of the heat exchange plate can also cooperate with the seventh positioning angle of the adjacent heat exchange plate to form a plate heat exchanger of another specification and size.