A plate heat exchanger with scale-shaped projections

Abstract

The application relates to the technical field of heat exchangers, and provides a scale-shaped convex plate type heat exchanger which comprises a base plate one, a base plate two and a heat exchange plate group arranged between the base plate one and the base plate two, the base plate one and the base plate two are connected and fixed through a connecting mechanism, and the connecting mechanism is arranged in the heat exchange plate group; the heat exchange plate group comprises a plurality of heat exchange plate pieces arranged in sequence, waterproof gaskets are arranged on the surfaces of the two sides of each heat exchange plate piece, the adjacent waterproof gaskets of every two adjacent heat exchange plate pieces are mutually adhered and form heat exchange areas; a plurality of heat exchange units are closely arranged on the surface of the heat exchange plate piece, the heat exchange unit comprises a plurality of scale-shaped convex parts which are closely arranged and sequentially connected, and each scale-shaped convex part is perpendicular to the gap between two adjacent scale-shaped convex parts in the adjacent heat exchange unit. Based on this, the streamline external fish body bionic structure formed by the scale-shaped convex part is beneficial to improving the smoothness of the fluid medium flow, reducing the pressure drop of the fluid medium when passing through the plate type heat exchanger and reducing the energy loss.

Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, and more particularly to a scale-shaped raised plate heat exchanger. Background Technology

[0002] A plate heat exchanger is a high-efficiency heat exchanger consisting of a series of heat exchange plates with a certain corrugated shape stacked together. Thin rectangular channels are formed between the heat exchange plates. After the hot and cold media enter the plate heat exchanger, they flow on both sides of each heat exchange plate and exchange heat through the heat exchange plates to achieve the effect of heat exchange.

[0003] Currently, heat exchange plates are typically made of stainless steel or titanium, and their corrugated shape is usually herringbone to increase the contact area between the fluid medium and the heat exchange plate, thereby improving heat exchange efficiency. However, when the fluid medium comes into contact with the herringbone protrusions of the heat exchange plate, it needs to overcome the internal friction between the fluid and the protrusions, as well as the momentum exchange caused by collisions between fluid particles during turbulence. This results in a pressure difference between the fluid medium at the inlet and outlet of the plate heat exchanger, leading to a large pressure drop, which needs to be improved. Summary of the Invention

[0004] In order to reduce the pressure drop of the fluid medium when passing through the plate heat exchanger, this application provides a scaly protruding plate heat exchanger.

[0005] The scaly plate heat exchanger provided in this application adopts the following technical solution:

[0006] A scale-shaped protruding plate heat exchanger includes a first substrate, a second substrate, and a heat exchange plate assembly disposed between the first substrate and the second substrate. The first substrate and the second substrate are connected and fixed by a connecting mechanism, which passes through the heat exchange plate assembly. The heat exchange plate assembly includes a plurality of heat exchange plates arranged in sequence. Each heat exchange plate has waterproof gaskets on both sides. The adjacent waterproof gaskets of every two adjacent heat exchange plates are attached to each other to form a heat exchange area. A plurality of heat exchange units are arranged closely on the surface of the heat exchange plates. Each heat exchange unit includes a plurality of scale-shaped protrusions arranged closely and connected in sequence. Each scale-shaped protrusion is directly opposite the gap between two adjacent scale-shaped protrusions in an adjacent heat exchange unit.

[0007] By adopting the above technical solution, after the heat exchange plates in this application are connected and fixed by the connecting mechanism, the waterproof gaskets between adjacent heat exchange plates are pressed together to form a sealed heat exchange area. The hot and cold media flow through the heat exchange areas on both sides of the heat exchange plates, which can play a role in heat exchange. When the fluid medium enters the heat exchange area, it comes into contact with the various scale-like protrusions on the surface of the heat exchange plates. The streamlined fish-like biomimetic structure formed by the scale-like protrusions helps to improve the smoothness of the fluid medium flow, reduce the flow pressure loss after the fluid medium enters the heat exchange area, and thus significantly reduce the pressure drop between the fluid inlet and the fluid outlet, reducing the energy loss of the fluid medium during transportation.

[0008] Optionally, the heat exchange unit also includes two connecting shafts. The two connecting shafts are respectively located at both ends of all the scale-like protrusions along the arrangement direction of each scale-like protrusion, and each connecting shaft is fixed to the adjacent scale-like protrusion. The end of the connecting shaft away from the scale-like protrusion passes through a waterproof gasket and is rotatably connected to the heat exchange plate.

[0009] By adopting the above technical solution, after each heat exchange unit is rotatably connected to the heat exchange plates through the connecting shafts at both ends, the fluid medium flows through the heat exchange area, and each heat exchange unit can swing under the water flow, thereby further improving the smoothness of the fluid medium flow, reducing the pressure drop between the fluid inlet and outlet, and reducing energy loss.

[0010] Optionally, each heat exchange unit has a guide structure installed on the connecting shaft on the same side. The guide structure includes a connecting block one and a connecting block two. Both connecting block one and connecting block two are fixed to the end of the connecting shaft away from the scale-like protrusions, and a guide slide is formed between connecting block one and connecting block two at intervals.

[0011] A movable frame is slidably mounted between substrate one and substrate two. The moving direction of the movable frame is the same as the arrangement direction of the heat exchange units, and the movable frame is also connected to a pushing component for moving it. The movable frame is provided with multiple strip grooves matching the number of heat exchange plates. Each strip groove is respectively provided on the outer side of each heat exchange plate. The extension direction of the strip groove is the same as the moving direction of the movable frame. The connecting shaft of each group of heat exchange units on each heat exchange plate extends into the adjacent strip groove.

[0012] Each slot is equipped with multiple support rods. In the initial state, each support rod is directly opposite the port of each guide slide. When the pushing component moves the moving frame, the support rods enter the guide slide and drive the corresponding connecting shaft to rotate.

[0013] By adopting the above technical solution, in the initial state, each support rod is directly opposite the port of each guide slide. By controlling the movement of the pushing component to push the moving frame, the support rod can move towards the guide structure. Finally, the support rod enters the interior of the guide slide and can abut against connecting block one or connecting block two. During the movement of the support rod, each heat exchange unit can be forced to form a small-amplitude oscillation, thereby forming a biomimetic structure similar to the oscillation of a fish body, further reducing the pressure drop between the fluid inlet and outlet ends and reducing energy loss.

[0014] Optionally, the guide slide includes a straight segment and an arc segment connected together. In the initial state, the extension direction of the straight segment is set in the same direction as the extension direction of the moving frame, while the end of the arc segment away from the straight segment is bent in a direction away from the central axis of the connecting shaft.

[0015] By adopting the above technical solution, when the pushing component forces the moving frame to move and the support rod enters the guide slide, the support rod first abuts against the middle of the guide slide along the straight section, and then abuts against the inner wall of connecting block one or connecting block two when it enters the arc section, thereby driving the connecting shaft and heat exchange unit to produce a small amplitude swing, thereby reducing the pressure drop between the fluid inlet and outlet ends.

[0016] Optionally, all support rods located in the same groove are arranged sequentially at intervals, and the spacing between any two adjacent support rods is set to be different.

[0017] By adopting the above technical solution, and by setting the spacing between adjacent support rods to be different, the contact time between the support rod and the inside of the arc segment can be inconsistent when the pushing component forces the moving frame to move and each support rod enters the corresponding guide slide. This achieves the effect of making the swing amplitude of each heat exchange unit different, further improving the smoothness of fluid medium flow and reducing the pressure drop between the fluid inlet and outlet.

[0018] Optionally, the movable frame is made of magnetically conductive metal material, and magnetic components are embedded on the opposite sides of connecting block one and connecting block two, and the magnetic components are magnetically attracted to the movable frame.

[0019] By adopting the above technical solution, the magnetic attraction between the magnetic component and the moving frame can cause the connecting shaft to rotate and stop at the position where the magnetic component and the moving frame are directly opposite each other. This allows the port of the guide slide to be directly opposite the support rod in the initial state, so that the pushing component can push the moving frame to move and the support rod can smoothly enter the interior of the guide slide.

[0020] Optionally, a sealing unit is provided between the connecting shaft and the waterproof gasket. The sealing unit includes a rotating ring, a load-bearing cover, a waterproof rubber gasket, and an absorbent cotton strip. The rotating ring is fixedly sleeved on the connecting shaft, the load-bearing cover is placed over the rotating ring and inside the waterproof gasket, and the rotating ring is freely rotatable inside the load-bearing cover. The waterproof rubber gasket is placed between the load-bearing cover and the connecting shaft, and is located on the side of the rotating ring closer to the scale-like protrusions. The absorbent cotton strip is placed between the load-bearing cover and the connecting shaft, and is located on the side of the rotating ring away from the scale-like protrusions.

[0021] By adopting the above technical solution, the connecting shaft is rotatably mounted inside the load-bearing cover via a rotating ring. After the first substrate, the second substrate, and the heat exchange plate assembly are connected and fixed by the connecting mechanism, the waterproof gaskets between adjacent heat exchange plates adhere to each other and press against the internal load-bearing cover. At this time, the load-bearing cover can withstand the elastic clamping force from the waterproof gaskets, ensuring the smooth rotation of the connecting shaft. In addition, the waterproof gasket is located on the side of the rotating ring near the scale-like protrusions, which can reduce the possibility of fluid medium inside the heat exchange area leaking to the outside. The absorbent cotton strip is used to absorb the fluid medium that seeps out from the waterproof gasket, further improving the sealing performance of the heat exchange plate assembly.

[0022] Optionally, the connecting mechanism includes multiple connecting sleeves and a movable sleeve disposed between every two adjacent connecting sleeves; the two connecting sleeves located at the ends of the connecting mechanism are configured as main sleeves, one of which is fixedly connected to the first substrate, and the other main sleeve is fixedly fitted with a limiting ring on its outer periphery, and the main sleeve is fixedly engaged with the second substrate through the limiting ring.

[0023] The end of the connecting sleeve is provided with an installation ring groove, the shape of which is adapted to the shape of the movable sleeve. The movable sleeve is movably inserted between two adjacent installation ring grooves. An elastic element is provided between the bottom wall of each adjacent installation ring groove and the movable sleeve to force the movable sleeve to stay securely between the two adjacent connecting sleeves.

[0024] By adopting the above technical solution, by setting a movable sleeve between each pair of adjacent connecting sleeves, when the two main sleeves are fixed with the first base plate and the second base plate respectively through the limiting ring, each connecting sleeve remains in a state of mutual contact, and the gap between the first base plate and the second base plate is minimized, so that the waterproof gaskets on each heat exchange plate can be tightly pressed to form a heat exchange area. At this time, all connecting sleeves are inserted through each heat exchange plate, which has the function of fixing the heat exchange plate assembly.

[0025] When dirt accumulates on the scale-like protrusions of the heat exchange plates and cleaning is required, the connection between the main sleeve and base plate one or base plate two is disconnected, causing base plate one and base plate two to move away from each other. At this time, the movable sleeve can be stably held between two adjacent connecting sleeves under the elastic force of the elastic element, thereby reducing the possibility of the heat exchange plates detaching from the connection mechanism. When it is necessary to clean a specific heat exchange plate, the corresponding connecting sleeve is moved so that the connecting sleeve is completely retracted into the adjacent mounting ring groove. The heat exchange plate can then be removed through the gap between the two connecting sleeves for rapid cleaning, thereby improving the cleanliness inside the heat exchange plate assembly and reducing the possibility of increased pressure drop at the inlet and outlet of the fluid medium due to localized dirt accumulation.

[0026] Optionally, a first lever and a second lever are fixed on the outer periphery of the movable sleeve, with the first lever and the second lever located at the two ends of the connecting sleeve respectively; two connecting sleeves adjacent to the movable sleeve are respectively provided with a first sliding groove and a second sliding groove, with the first lever passing through the adjacent first sliding groove and the second lever passing through the adjacent second sliding groove.

[0027] The first sliding groove includes a first sliding area and an unlocking area connected thereto. The first sliding area and the unlocking area are arranged side by side. The extension direction of the first sliding area and the extension direction of the unlocking area are the same as the axial direction of the connecting sleeve. One end of the unlocking area passes through one end of the connecting sleeve.

[0028] The second sliding groove includes a second sliding area and a locking area connected thereto. The first sliding area and the locking area are arranged side by side. The extension direction of the first sliding area and the extension direction of the locking area are the same as the axial direction of the connecting sleeve. The inner sidewall of the locking area away from the first sliding area is provided with multiple concave limiting areas at intervals. When the second lever partially enters the limiting area, the first lever disengages from the connecting sleeve along the unlocking area.

[0029] By adopting the above technical solution, the movable sleeve is fixed to the connecting sleeves at both ends by the first lever and the second lever respectively. The first lever is normally located in the first sliding area of ​​the first sliding groove, and the second lever is normally located in the second sliding area of ​​the second sliding groove, which can reduce the possibility of the movable sleeve detaching from the two adjacent connecting sleeves. When the heat exchange plates need to be removed for cleaning, by moving the second lever into the locking area, the first lever can be moved into the unlocking area; then the second lever is forced to move away from the first sliding groove, and the first lever can detach from the connecting sleeve along the unlocking area, so that a gap is formed between the two adjacent connecting sleeves to facilitate the removal of the heat exchange plates. In addition, by locking the second lever in a certain limiting area of ​​the locking area, the elastic force of the elastic element can force the second lever to press against the inner wall of the limiting area, so that the position of the movable sleeve is fixed, that is, the two connecting sleeves are kept apart, which is beneficial for the subsequent reinstallation and removal of the heat exchange plates after cleaning, ensuring that the heat exchange areas on both sides of the heat exchange plates can be supplied with hot and cold media respectively.

[0030] Optionally, it also includes a placement base, with substrate one fixed to the upper surface of the placement base and substrate two slidably mounted on the upper surface of the placement base; a sliding push frame plate is also installed on the upper surface of the placement base, the push frame plate is located on the side of substrate two away from substrate one and abuts against the connecting mechanism, and a driving component is connected to the end of the push frame plate away from substrate two for driving the push frame plate to move towards or away from substrate two.

[0031] By adopting the above technical solution, the moving frame plate is driven to move closer to the second substrate by controlling the action of the driving component. The moving frame plate can abut against the main sleeve at the end of the connecting mechanism and force each connecting sleeve to move closer to each other so that the adjacent waterproof gaskets of each adjacent heat exchange plate can abut against each other to form a heat exchange area. When it is necessary to clean the internal heat exchange plates, the driving component is reset by controlling the reset, and each connecting sleeve can move away from each other under the elastic force of the elastic element, thereby forming a gap between adjacent connecting sleeves, so as to move the movable sleeve and remove the corresponding heat exchange plate.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. By setting scale-like protrusions on the surface of the heat exchange plates, the streamlined fish-shaped biomimetic structure formed by multiple scale-like protrusions helps to improve the smoothness of fluid medium flow, reduce the pressure drop between the fluid inlet and the fluid outlet, and reduce the energy loss of the fluid medium during transportation.

[0034] 2. By rotating each heat exchange unit to the heat exchange plates, each heat exchange unit can oscillate under the flow of water, thereby further improving the smoothness of fluid medium flow, reducing the pressure drop between the fluid inlet and outlet, and reducing energy loss;

[0035] 3. When a heat exchange plate needs to be cleaned, the corresponding connecting sleeve is moved so that it is completely retracted into the adjacent mounting ring groove. The heat exchange plate can then be removed through the hollow between the two connecting sleeves and cleaned quickly. This improves the cleanliness of the heat exchange plate assembly and reduces the possibility of increased pressure drop at the inlet and outlet of the fluid medium due to local dirt accumulation. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0037] Figure 2 This is a schematic diagram of the heat exchange plate structure in Example 1;

[0038] Figure 3 This is a schematic diagram of the connecting mechanism in Embodiment 1;

[0039] Figure 4 This is a schematic diagram of the connection structure between the movable sleeve and the connecting sleeve in Embodiment 1;

[0040] Figure 5 This is a schematic diagram of the heat exchange plate structure in Example 2;

[0041] Figure 6 This is a schematic diagram of the sealing unit in Example 2;

[0042] Figure 7 This is a schematic diagram of the overall structure of Example 3;

[0043] Figure 8 yes Figure 1 Enlarged view of point A in the middle;

[0044] Figure 9 This is a partial structural diagram of the movable frame in Example 3, mainly illustrating the sliding cooperation relationship between the support rod and the guide structure.

[0045] Explanation of reference numerals in the attached drawings: 1. Base plate one; 11. Movable insert; 2. Base plate two; 3. Heat exchange plate assembly; 31. Heat exchange plate; 311. Rotating seat; 32. Waterproof gasket; 33. Heat exchange unit; 331. Scale-like protrusion; 332. Connecting shaft; 34. Guide structure; 341. Connecting block one; 342. Connecting block two; 343. Guide slide; 344. Straight segment; 345. Curved segment; 346. Magnetic component;

[0046] 4. Connecting mechanism; 41. Connecting sleeve; 411. Mounting ring groove; 42. Movable sleeve; 421. First lever; 422. Second lever; 43. Elastic element; 44. First sliding groove; 441. First sliding area; 442. Unlocking area; 45. Second sliding groove; 451. Second sliding area; 452. Snap-fit ​​area; 453. Limiting area; 46. Limiting ring;

[0047] 5. Moving frame; 51. Pushing component; 52. Strip groove; 53. Support rod; 54. Movable slot; 6. Sealing unit; 61. Rotating ring; 62. Load-bearing cover; 621. Shaft hole; 622. Concave ring groove; 63. Waterproof rubber pad; 64. Absorbent cotton strip; 7. Placement base; 71. Pushing frame plate; 72. Driving component. Detailed Implementation

[0048] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0049] Example 1

[0050] This application discloses a scale-shaped protruding plate heat exchanger.

[0051] Reference Figure 1 A scale-shaped protruding plate heat exchanger includes a base plate 1, a second base plate 2, a heat exchange plate assembly 3, and a placement base 7. The base plate 1 is fixedly connected to the upper surface of the placement base 7, and the second base plate 2 is slidably mounted on the upper surface of the placement base 7 via a slide rail. The base plate 1 and the second base plate 2 are always spaced apart. The heat exchange plate assembly 3 is disposed between the base plate 1 and the second base plate 2, and a connecting mechanism 4 is provided between the base plate 1 and the second base plate 2 to fix the base plate 1 and the second base plate 2 to each other and jointly clamp the heat exchange plate assembly 3. There are four sets of connecting mechanisms 4, which are distributed at the four corners of the base plate 1, and each connecting mechanism 4 passes through the heat exchange plate assembly 3.

[0052] Among them, reference Figure 2 The heat exchange plate assembly 3 includes a plurality of heat exchange plates 31 arranged in sequence. Waterproof gaskets 32 are bonded to both sides of each heat exchange plate 31. After the substrate 1 and substrate 2 are fixed to each other by the connecting mechanism 4, the waterproof gaskets 32 of adjacent heat exchange plates 31 can be attached to each other to form a heat exchange area. Cold and hot media are respectively introduced into the heat exchange areas on both sides of each heat exchange plate 31 so that the cold and hot media can exchange heat through the heat exchange plate 31.

[0053] Multiple heat exchange units 33 are provided on the surface of the heat exchange plate 31, and all heat exchange units 33 are closely arranged along the length direction of the heat exchange plate 31. Each heat exchange unit 33 includes multiple scale-like protrusions 331, and all scale-like protrusions 331 are closely arranged and connected sequentially along the width direction of the heat exchange plate 31. Moreover, each scale-like protrusion 331 is directly opposite the gap between two adjacent scale-like protrusions 331 in the adjacent heat exchange unit 33. In addition, in this embodiment, each scale-like protrusion 331 is welded and fixed to the heat exchange plate 31 it is located on. The arrangement of the scale-like protrusions 331 can form a streamlined fish-like biomimetic structure, which is beneficial to improving the smoothness of fluid medium flow and significantly reducing the pressure drop between the fluid inlet and the fluid outlet.

[0054] Reference Figure 3 The connecting mechanism 4 includes multiple connecting sleeves 41 and a movable sleeve 42 disposed between every two adjacent connecting sleeves 41. The outer diameter of the connecting sleeve 41 is larger than the outer diameter of the movable sleeve 42. An mounting annular groove 411 is formed at the end of each connecting sleeve 41 near an adjacent connecting sleeve 41. The shape of the mounting annular groove 411 is equal to the shape of the movable sleeve 42. Each movable sleeve 42 is movably inserted between two adjacent mounting annular grooves 411, and when two adjacent movable sleeves 42 abut against each other, the movable sleeve 42 can completely enter between the two adjacent mounting annular grooves 411. In this embodiment, each movable sleeve 42 passes through each heat exchange plate 31 to serve a fixing function.

[0055] Each mounting ring groove 411 is provided with an elastic element 43. In this embodiment, the elastic element 43 is a compression spring. One end of the elastic element 43 is connected to the inner end wall of the mounting ring groove 411, and the other end of the elastic element 43 abuts against the movable sleeve 42. The elastic element 43 can always generate an elastic force acting on the movable sleeve 42, so that when the two connecting sleeves 41 are spaced apart, the movable sleeve 42 can be stably stopped between the two adjacent connecting sleeves 41. It should also be noted that when the elastic element 43 is in the normal extension and contraction state, the end of the elastic element 43 away from the inner end wall of the mounting ring groove 411 is still located inside the mounting ring groove 411.

[0056] Reference Figure 4A first lever 421 and a second lever 422 are fixed to the outer periphery of the movable sleeve 42, with the first lever 421 and the second lever 422 located at opposite ends of the movable sleeve 42. One of the connecting sleeves 41 adjacent to the movable sleeve 42 has a first sliding groove 44, which communicates with the mounting ring groove 411. The first lever 421 passes through the adjacent first sliding groove 44, and its end face is flush with the outer periphery of the connecting sleeve 41. The other connecting sleeve 41 adjacent to the movable sleeve 42 has a second sliding groove 45, which also communicates with the mounting ring groove 411. The second lever 422 passes through the adjacent second sliding groove 45, and its end face is flush with the outer periphery of the connecting sleeve 41.

[0057] Specifically, the first sliding groove 44 includes a first sliding area 441 and an unlocking area 442. The first sliding area 441 and the unlocking area 442 are arranged side by side and partially connected. The extension direction of the first sliding area 441 and the extension direction of the unlocking area 442 are the same as the axial direction of the connecting sleeve 41. One end of the unlocking area 442 passes through one end of the connecting sleeve 41, so that after the first lever 421 enters the unlocking area 442, it can disengage from the connecting sleeve 41 through the unlocking area 442.

[0058] The second sliding groove 45 includes a second sliding area 451 and a locking area 452. The second sliding area 451 and the locking area 452 are arranged side by side and partially connected. The extension direction of the second sliding area 451 and the extension direction of the locking area 452 are the same as the axial direction of the connecting sleeve 41. When the movable sleeve 42 is connected between two adjacent connecting sleeves 41, the first sliding area 441 and the second sliding area 451 are directly opposite each other, while the unlocking area 442 and the locking area 452 are directly opposite each other. When the second lever 422 moves inside the locking area 452 in a direction away from the first sliding groove 44, the first lever 421 can leave the unlocking area 442 and thus disengage from the connecting sleeve 41.

[0059] The inner wall of the snap-fit ​​area 452, away from the second sliding area 451, is also provided with multiple recessed limiting areas 453. All limiting areas 453 are equidistantly arranged along the extension direction of the snap-fit ​​area 452. When the first lever 421 leaves the unlocking area 442, by snapping the second lever 422 into the snap-fit ​​area 452, the movable sleeve 42 can make the second lever 422 firmly abut against the inner wall of the snap-fit ​​area 452 under the elastic force of the elastic member 43. Thus, the position between the movable sleeve 42 and the adjacent connecting sleeve 41 remains fixed, so as to facilitate the removal, cleaning and reinstallation of the heat exchange plate 31.

[0060] Back Figure 1Both connecting sleeves 41 located at both ends of the connecting mechanism 4 are designated as main sleeves. One main sleeve is fixedly connected to the substrate 1. A limiting ring 46 is fixedly fitted on the outer periphery of the other main sleeve. When the main sleeve passes through the substrate 2, the limiting ring 46 can abut against the side of the substrate 2 away from the substrate 1. A sliding push frame plate 71 is installed on the upper surface of the placement base 7. The push frame plate 71 is located on the side of the substrate 2 away from the substrate 1, and the main sleeve at the end of the connecting mechanism 4 can always abut against the push frame plate 71 under the elastic action of the elastic member 43.

[0061] A drive component 72 is also fixed on the upper surface of the base 7. The drive component 72 can be a linear motion component such as a cylinder, hydraulic cylinder, or electric push rod. The movable end of the drive component 72 is connected to the push frame plate 71. By controlling the movement of the drive component 72, its movable end extends outward, which can push the main sleeve and the second base plate 2 towards the base plate 1, thereby keeping the connecting sleeves 41 in a state of mutual contact, and thus keeping the heat exchange plate assembly 3 fixed. When the movable end of the drive component 72 retracts inward, the connecting sleeves 41 can automatically disperse and spaced apart under the elastic force of the elastic member 43, so that the operator can move the movable sleeves 42 and remove the heat exchange plates 31 for cleaning.

[0062] The implementation principle of Embodiment 1 of this application is as follows:

[0063] When the fluid medium enters the heat exchange area and comes into contact with the various scale-like protrusions 331 on the surface of the heat exchange plate 31, the streamlined fish-shaped biomimetic structure formed by the various scale-like protrusions 331 helps to improve the smoothness of the fluid medium flow, reduce the flow pressure loss after the fluid medium enters the heat exchange area, and thus significantly reduce the pressure drop between the fluid inlet and the fluid outlet, thereby reducing the energy loss of the fluid medium during the transportation process.

[0064] In addition, the gap between adjacent scale-like protrusions 331 is prone to dirt accumulation. When it is necessary to clean the heat exchange plate 31, the movable end of the drive component 72 is retracted inward by controlling the drive component 72. Under the elastic force of the corresponding elastic element 43, each connecting sleeve 41 is dispersed and spaced apart. At this time, the operator moves the second lever 422 to enter the locking area 452, so that the first lever 421 can leave the adjacent connecting sleeve 41 through the unlocking area 442. At this time, the heat exchange plate 31 can be easily removed from the gap between the two connecting sleeves 41, improving the convenience of cleaning the heat exchange plate 31.

[0065] Example 2

[0066] This application discloses a scale-shaped protruding plate heat exchanger.

[0067] Reference Figure 5The present application discloses a scale-shaped raised plate heat exchanger, with the remaining components being the same as those in Embodiment 1, and will not be described in detail here; the difference from Embodiment 1 is that:

[0068] The heat exchange unit 33 also includes two connecting shafts 332. The two connecting shafts 332 are respectively disposed on both sides of all the scale-like protrusions 331 along the arrangement direction of each scale-like protrusion 331, and each connecting shaft 332 is welded and fixed to the adjacent scale-like protrusion 331. The end of the connecting shaft 332 away from the scale-like protrusions 331 passes through the waterproof gasket 32 ​​and is partially exposed in the heat exchange area. A rotating seat 311 is fixed on the surface of the heat exchange plate 31. The rotating seat 311 is located outside the waterproof gasket 32, and the exposed end of each connecting shaft 332 is rotatably connected to the rotating seat 311, so that each heat exchange unit 33 can rotate on the heat exchange plate 31.

[0069] Reference Figure 6 A sealing unit 6 is provided between the connecting shaft 332 and the waterproof gasket 32 ​​to improve the waterproof sealing performance between the two. The sealing unit 6 includes a rotating ring 61, a load-bearing cover 62, a waterproof gasket 63, and an absorbent cotton strip 64. The rotating ring 61 is sleeved on the connecting shaft 332 and fixedly connected to the connecting shaft 332. The load-bearing cover 62 is provided with an axial hole 621 for the connecting shaft 332 to pass through. The inner diameter of the hole 621 is larger than the outer diameter of the connecting shaft 332. The inner wall of the hole 621 is provided with an inner concave annular groove 622. The inner diameter of the inner concave annular groove 622 is equal to the outer diameter of the rotating ring 61. The rotating ring 61 is rotatably installed inside the inner concave annular groove 622, and the circumferential surface of the rotating ring 61 is smoothly provided so that the rotating ring 61 can rotate smoothly inside the inner concave annular groove 622.

[0070] A waterproof gasket 63 is fitted onto the outer periphery of the connecting shaft 332, and is located on the side of the rotating ring 61 closest to the scale-like protrusions 331. When the rotating ring 61 is installed in the concave annular groove 622, the waterproof gasket 63 abuts against the inner peripheral wall of the shaft hole 621, reducing the possibility of fluid medium leakage from the heat exchange area to the outside. A water-absorbing cotton strip 64 is fitted onto the outer periphery of the connecting shaft 332, and is located on the side of the rotating ring 61 away from the scale-like protrusions 331. When the rotating ring 61 is installed in the concave annular groove 622, the water-absorbing cotton strip 64 can absorb the fluid medium that seeps out from the waterproof gasket 63, further improving the sealing performance of the heat exchange plate assembly 3.

[0071] The implementation principle of Embodiment 2 of this application is as follows:

[0072] When the fluid medium enters the heat exchange area and exchanges heat through the heat exchange plates 31, the water flow through the heat exchange plates 31 can force each group of heat exchange units 33 to swing, thereby further improving the smoothness of the fluid medium flow, reducing the pressure drop between the fluid inlet and outlet, and reducing energy loss.

[0073] Example 3

[0074] This application discloses a scale-shaped protruding plate heat exchanger.

[0075] Reference Figure 7 The present application discloses a scale-shaped raised plate heat exchanger, with the remaining components being the same as those in Embodiment 1, and will not be described in detail here; the difference from Embodiment 2 is that:

[0076] A movable frame 5 is provided on the outer side of substrate 1 and substrate 2; at the same time, refer to Figure 8 Movable slots 54 are fixed to both ends of the movable frame 5, and movable pins 11 are fixed to the first substrate 1 and the second substrate 2. The movable frame 5 is slidably installed between the first substrate 1 and the second substrate 2 through the cooperation of the movable pins 11 and the movable slots 54. The moving direction of the movable frame 5 is the same as the arrangement direction of the heat exchange unit 33. A pushing component 51 is also connected to the outside of the movable frame 5. The pushing component 51 can be a cylinder, hydraulic cylinder or electric push rod or other linear motion component. The fixed end of the pushing component 51 is fixed to the placement base 7, and the movable end of the pushing component 51 is connected to the movable frame 5 to drive the movable frame 5 to move.

[0077] Reference Figure 8 The movable frame 5 is provided with multiple strip grooves 52, the number of which is equal to the number of heat exchange plates 31. All strip grooves 52 are equidistantly arranged along the surface of the movable frame 5, and each strip groove 52 is located on the outer side of each heat exchange plate 31. The extension direction of the strip grooves 52 is the same as the extension direction of the movable frame 5. (See also...) Figure 9 The connecting shafts 332 of each heat exchange unit 33 on each heat exchange plate 31 extend into the adjacent strip groove 52.

[0078] Reference Figure 9 Each heat exchange unit 33 has a guide structure 34 installed on the connecting shaft 332 on the same side. The guide structure 34 includes a first connecting block 341 and a second connecting block 342. Both the first connecting block 341 and the second connecting block 342 are fixed to the end of the connecting shaft 332 away from the scale-like protrusions 331, and a guide slide 343 is formed between the first connecting block 341 and the second connecting block 342 at intervals. The guide slide 343 includes a straight section 344 and an arc section 345 that are connected to each other. In the initial state, the extension direction of the straight section 344 is in the same direction as the movement direction of the moving frame 5, while the end of the arc section 345 away from the straight section 344 is bent away from the central axis of the connecting shaft 332.

[0079] It should be noted that the initial state mentioned above refers to the state when the fluid medium has not been introduced into the plate heat exchanger. At this time, each heat exchange unit 33 is not affected by the impact of the fluid medium and rotates. In addition, magnetic components 346 are embedded on the opposite sides of connecting block 1 341 and connecting block 2 342. In this embodiment, the magnetic components 346 are magnets. The moving frame 5 is made of magnetically conductive metal material, which can ensure that there is always a magnetic attraction between the magnet and the moving frame 5, thereby enabling each connecting shaft 332 to stay in the position of the straight segment 344 in the initial state.

[0080] Each slot 52 has multiple support rods 53 inside, and each support rod 53 is staggered with each connecting shaft 332. Each support rod 53 is directly opposite the port of the adjacent guide slide 343, that is, the side of the straight section 344 of the adjacent guide slide 343 away from the arc section 345. When the pushing component 51 pushes the moving frame 5 to move, the support rod 53 can enter the straight section 344 of the guide slide 343. During the movement, the support rod 53 can abut against the inner wall of the arc section 345 and drive the connecting shaft 332 to rotate, thereby giving the heat exchange unit 33 a small oscillation effect, realizing the reduction of pressure drop between the fluid inlet and outlet.

[0081] In addition, the spacing between any two adjacent support rods 53 in the same groove 52 is different, and the spacing between adjacent support rods 53 gradually decreases from the end closer to the pushing member 51 to the end farther away from the pushing member 51. When the pushing member 51 pushes the moving frame 5 to move, the support rod 53 closer to the pushing member 51 first abuts against the arc segment 345, which enables each heat exchange unit 33 to swing in sequence and orderly, further improving the smoothness of fluid medium flow and reducing the pressure drop between the fluid inlet and outlet.

[0082] The implementation principle of Embodiment 3 of this application is as follows:

[0083] When the fluid medium enters the heat exchange area and exchanges heat through the heat exchange plates 31, the moving frame 5 is moved by controlling the movement of the pushing component 51. Each support rod 53 in the strip groove 52 can enter the interior of each guide slide 343 and push the corresponding connecting shaft 332 to rotate, thereby causing each group of heat exchange units 33 to swing in a small amplitude in sequence, further improving the smoothness of fluid medium flow and reducing the pressure drop between the fluid inlet and outlet.

[0084] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A scale-shaped raised plate heat exchanger, characterized in that: The system includes a substrate 1 (1), a substrate 2 (2), and a heat exchange plate assembly (3) disposed between the substrate 1 (1) and the substrate 2 (2). The substrate 1 (1) and the substrate 2 (2) are connected and fixed by a connecting mechanism (4), and the connecting mechanism (4) passes through the heat exchange plate assembly (3). The heat exchange plate assembly (3) includes a plurality of heat exchange plates (31) arranged in sequence. Each heat exchange plate (31) has waterproof gaskets (32) on both sides. The adjacent waterproof gaskets (32) of each pair of adjacent heat exchange plates (31) are attached to each other to form a heat exchange area. A plurality of heat exchange units (33) are arranged closely on the surface of the heat exchange plates (31). Each heat exchange unit (33) includes a plurality of scale-like protrusions (331) arranged closely and connected in sequence. Each scale-like protrusion (331) is directly opposite to the gap between two adjacent scale-like protrusions (331) in the adjacent heat exchange unit (33). The unit (33) also includes two connecting shafts (332), which are respectively located at both ends of all the scale-like protrusions (331) along the arrangement direction of each scale-like protrusion (331), and each connecting shaft (332) is fixed to the adjacent scale-like protrusion (331); the end of the connecting shaft (332) away from the scale-like protrusion (331) passes through the waterproof gasket (32) and is rotatably connected to the heat exchange plate (31); each group The heat exchange unit (33) has a guide structure (34) installed on the connecting shaft (332) on the same side. The guide structure (34) includes a first connecting block (341) and a second connecting block (342). The first connecting block (341) and the second connecting block (342) are fixed to the end of the connecting shaft (332) away from the scale-like protrusion (331). A guide slide (343) is formed between the first connecting block (341) and the second connecting block (342) at intervals. A movable frame (5) is slidably mounted between the first substrate (1) and the second substrate (2). The moving direction of the movable frame (5) is the same as the arrangement direction of the heat exchange units (33). The movable frame (5) is also connected to a pushing component (51) for moving it. The movable frame (5) is provided with a plurality of strip grooves (52) matching the number of heat exchange plates (31). Each strip groove (52) is respectively disposed on the outside of each heat exchange plate (31). The extension direction of the strip groove (52) is the same as the moving direction of the movable frame (5). The connecting shaft (332) of each group of heat exchange units (33) on each heat exchange plate (31) extends into the adjacent strip groove (52). Each of the strip grooves (52) is equipped with multiple support rods (53). In the initial state, each support rod (53) is directly opposite the port of each guide slide (343). When the pushing component (51) pushes the moving frame (5) to move, the support rod (53) enters the guide slide (343) and pushes the corresponding connecting shaft (332) to rotate.

2. The scale-shaped raised plate heat exchanger according to claim 1, characterized in that: The guide slide (343) includes a straight section (344) and an arc section (345) that are connected. In the initial state, the extension direction of the straight section (344) is set in the same direction as the extension direction of the moving frame (5), while the end of the arc section (345) away from the straight section (344) is bent away from the central axis of the connecting shaft (332).

3. The scale-shaped raised plate heat exchanger according to claim 2, characterized in that: All the support rods (53) located in the same strip groove (52) are arranged in sequence at intervals, and the spacing between any two adjacent support rods (53) is different.

4. The scale-shaped raised plate heat exchanger according to claim 1, characterized in that: The movable frame (5) is made of magnetic metal material. Magnetic components (346) are embedded on the opposite sides of the connecting block one (341) and the connecting block two (342). The magnetic components (346) are magnetically attracted to the movable frame (5).

5. The scale-shaped raised plate heat exchanger according to claim 1, characterized in that: A sealing unit (6) is provided between the connecting shaft (332) and the waterproof gasket (32). The sealing unit (6) includes a rotating ring (61), a load-bearing cover (62), a waterproof rubber pad (63), and an absorbent cotton strip (64). The rotating ring (61) is fixedly sleeved on the connecting shaft (332). The load-bearing cover (62) covers the rotating ring (61) and is located inside the waterproof gasket (32). The rotating ring (61) is freely rotatable inside the load-bearing cover (62). The waterproof rubber pad (63) is located between the load-bearing cover (62) and the connecting shaft (332) and is located on the side of the rotating ring (61) near the scale-like protrusion (331). The absorbent cotton strip (64) is located between the load-bearing cover (62) and the connecting shaft (332) and is located on the side of the rotating ring (61) away from the scale-like protrusion (331).

6. The scale-shaped raised plate heat exchanger according to claim 1, characterized in that: The connecting mechanism (4) includes a plurality of connecting sleeves (41) and a movable sleeve (42) disposed between each pair of adjacent connecting sleeves (41); the two connecting sleeves (41) located at the ends of the connecting mechanism (4) are configured as main sleeves, one of the main sleeves is fixedly connected to the first substrate (1), and the outer periphery of the other main sleeve is fixedly fitted with a limiting ring (46), and the main sleeve is fixedly engaged with the second substrate (2) through the limiting ring (46); The end of the connecting sleeve (41) is provided with a mounting ring groove (411), the shape of which is adapted to the shape of the movable sleeve (42), and the movable sleeve (42) is movably inserted between two adjacent mounting ring grooves (411); an elastic element (43) is provided between the bottom wall of each adjacent mounting ring groove (411) and the movable sleeve (42) to force the movable sleeve (42) to stay securely between two adjacent connecting sleeves (41).

7. The scale-shaped raised plate heat exchanger according to claim 6, characterized in that: The movable sleeve (42) is fixed with a first lever (421) and a second lever (422) on its outer periphery. The first lever (421) and the second lever (422) are located at the two ends of the connecting sleeve (41), respectively. The two connecting sleeves (41) adjacent to the movable sleeve (42) are respectively provided with a first sliding groove (44) and a second sliding groove (45). The first lever (421) passes through the adjacent first sliding groove (44), and the second lever (422) passes through the adjacent second sliding groove. The first sliding groove (44) includes a first sliding area (441) and an unlocking area (442) connected thereto. The first sliding area (441) and the unlocking area (442) are arranged side by side. The extension direction of the first sliding area (441) and the extension direction of the unlocking area (442) are the same as the axial direction of the connecting sleeve (41). One end of the unlocking area (442) extends through one end of the connecting sleeve (41). The second sliding groove (45) includes a second sliding area (451) and a locking area (452) connected thereto. The first sliding area (441) and the locking area (452) are arranged side by side. The extension direction of the first sliding area (441) and the extension direction of the locking area (452) are the same as the axial direction of the connecting sleeve (41). The inner sidewall of the locking area (452) away from the first sliding area (441) is provided with a plurality of concave limiting areas (453). When the second lever (422) partially enters the limiting area (453), the first lever (421) disengages from the connecting sleeve (41) along the unlocking area (442).

8. The scale-shaped raised plate heat exchanger according to claim 6, characterized in that: It also includes a placement base (7), wherein the first substrate (1) is fixed to the upper surface of the placement base (7), and the second substrate (2) is slidably mounted on the upper surface of the placement base (7); a sliding push frame plate (71) is also installed on the upper surface of the placement base (7), the push frame plate (71) is located on the side of the second substrate (2) away from the first substrate (1) and abuts against the connecting mechanism (4), and a driving component (72) is connected to the end of the push frame plate (71) away from the second substrate (2) for driving the push frame plate (71) to move towards or away from the second substrate (2).

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