Anti-fouling spoiler type heat exchange plate group structure

Abstract

The present application relates to plate heat exchanger technical field, and disclose a kind of anti-fouling spoiler plate heat exchanger plate group structure, including frame, frame is provided with movable locking plate, frame is provided with several heat exchange plates, locking plate is used to compress several heat exchange plates, two edge ears are fixed on each heat exchange plate, two edge ears on the same heat exchange plate are symmetrically arranged, the both sides of frame are provided with guide rod, each guide rod is connected with frame by fixed frame, and separation assembly is provided on each guide rod, and the side of frame is provided with pusher assembly.The present application is connected by inelastic connecting rope between adjacent moving frame in separation assembly, and pusher end head moving frame can sequentially drive all moving frames, so that the clamping groove on swing frame pulls edge ear, and then the heat exchange plates stacked are sequentially separated to form gap, without completely disassembling heat exchanger, operating gap can be formed, the cleaning of sealing washer is facilitated, and maintenance time and labor intensity are reduced.

Description

Technical Field

[0001] This invention relates to the field of plate heat exchanger technology, and in particular to a plate heat exchanger assembly structure that prevents scaling and turbulence. Background Technology

[0002] A plate heat exchanger is a compact heat exchange device consisting of a series of corrugated metal plates stacked together, through which hot and cold fluids flow between adjacent plates and efficiently transfer heat.

[0003] In existing plate heat exchangers, scale, sludge, or organic matter accumulate on the plate surfaces after prolonged use, requiring periodic disassembly and cleaning to maintain heat exchange efficiency. During normal operation, adjacent plates are tightly fitted together by sealing gaskets and firmly clamped by pressure plates. Cleaning requires loosening the clamping bolts, removing the movable pressure plates, and then manually separating and removing dozens or even hundreds of plates one by one. This manual separation of multiple plates has significant drawbacks. First, the large number and dense arrangement of plates, requiring manual pulling or prying of each one, results in extreme labor intensity, often taking several hours or even half a day or more for a single cleaning, severely impacting maintenance time, causing prolonged equipment downtime, and affecting production continuity. Second, the plates are stamped from thin stainless steel plates only 0.5 to 0.8 millimeters thick, resulting in poor rigidity. Uneven force or improper angles during manual separation can easily cause warping, deformation, or even scratches on the corrugated surface, affecting subsequent sealing and heat exchange performance.

[0004] Therefore, it is necessary to design an anti-fouling and turbulence-resistant heat exchanger plate structure to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-fouling and turbulence-prone heat exchanger plate structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A scale-resistant, turbulence-resistant heat exchanger plate assembly structure includes a frame, a movable locking plate on the frame, and a plurality of heat exchange plates on the frame. The locking plate is used to press the plurality of heat exchange plates together. Each heat exchange plate has two side ears fixed on it, and the two side ears on the same heat exchange plate are symmetrically arranged. Guide rods are provided on both sides of the frame, and each guide rod is connected to the frame through a fixing bracket. Each guide rod is provided with a separation component. A pushing component is provided on one side of the frame.

[0007] As a preferred embodiment of the present invention, the separation assembly includes several movable frames, each of which is slidably mounted on a guide rod. Each movable frame is fixed with a rotating shaft, and each rotating shaft is rotatably mounted with a swing frame. Each swing frame has a slot, and each swing frame has a fixing rod fixed to its side. Adjacent movable frames are connected by a non-elastic connecting rope.

[0008] As a preferred embodiment of the present invention, a convex key is fixed on the guide rod, and each of the movable frames is provided with a keyway that matches the convex key.

[0009] As a preferred embodiment of the present invention, the plurality of swing frames are respectively arranged facing the plurality of heat exchange plates.

[0010] As a preferred embodiment of the present invention, for any one of the heat exchange plates, the two side ears are respectively engaged in the slots on the corresponding two swing frames.

[0011] As a preferred embodiment of the present invention, the pushing assembly includes two push rods, which are respectively fixed on movable frames at the ends of two guide rods. Each push rod has a rotatable connecting frame at the end away from the corresponding movable frame. The two connecting frames are connected by a grip rod, which has a U-shaped structure.

[0012] As a preferred embodiment of the present invention, the frame is provided with two pressing components and two positioning components, wherein the pressing components are used to control the synchronous rotation of several swing frames on the same guide rod; The pressing assembly includes a side plate and two guide frames. The side plate is detachably mounted on the frame. One guide frame is fixed to the side plate, and the other guide frame is fixed to the frame. The two guide frames are arranged facing each other. Each guide frame has an arc-shaped structure. A pressure rod is provided between the two guide frames. Two limiting collars are fixedly sleeved at both ends of the pressure rod. The pressure rod is connected to the frame by a tension spring. An assembly rod is fixed at the end of the pressure rod. The assembly rod has an opening. The pressure rod is arranged opposite to several fixed rods on the same guide rod.

[0013] As a preferred embodiment of the present invention, for two adjacent limiting collars, the two limiting collars are respectively located on both sides of the corresponding guide frame, and each limiting collar is in contact with the guide frame.

[0014] As a preferred embodiment of the present invention, the positioning component includes a mounting plate, which is fixed to the surface of the frame. The mounting plate has an opening, and a movable pin is slidably disposed in the opening.

[0015] The present invention has the following beneficial effects: By separating the inelastic connecting ropes between adjacent moving frames in the separation assembly, pushing the end moving frame can drive all moving frames step by step, causing the slots on the swing frame to pull the side ears, thereby separating the stacked heat exchange plates one by one to form gaps. This creates an operating gap without completely disassembling the heat exchanger, facilitating the cleaning of the sealing gaskets and reducing maintenance time and labor intensity. The pressing assembly uses a pressure rod to move along the arc-shaped guide frame, while simultaneously pressing down all the fixed rods on the same guide rod, causing the swing frame to rotate synchronously until the slots and side ears disengage, making it easy to completely remove the heat exchange plates from the frame. The positioning assembly uses a movable pin to lock the pressure rod position through the through-hole between the fixed rod and the mounting plate, preventing the swing frame from automatically resetting. The disassembly process is stable and reliable, suitable for heat exchange conditions prone to scaling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the anti-fouling and turbulence-reducing plate heat exchanger assembly structure proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the anti-fouling and turbulence-reducing plate heat exchanger assembly structure proposed in this invention. Figure 2 ; Figure 3 This is a schematic diagram of the heat exchange plate structure; Figure 4 This is a schematic diagram of the guide rod and the separation assembly; Figure 5 for Figure 4 Enlarged view of the structure at point A; Figure 6 This is a schematic diagram of the downward pressure assembly; Figure 7 A schematic diagram of the structure when fixing the pressure bar to the positioning component; Figure 8 A schematic diagram of the component structure; Figure 9 for Figure 2 Enlarged view of the structure at point B.

[0017] In the diagram: 1. Frame; 2. Locking plate; 3. Heat exchange plate; 31. Side lug; 4. Guide rod; 41. Fixed frame; 51. Moving frame; 52. Rotating shaft; 53. Swing frame; 54. Slot; 55. Fixed rod; 56. Connecting rope; 61. Push rod; 62. Connecting frame; 63. Holding rod; 71. Side plate; 72. Guide frame; 73. Pressure rod; 74. Limiting collar; 75. Tension spring; 76. Assembly rod; 761. Through port; 81. Mounting plate; 82. Movable pin. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Example 1: This example discloses an anti-fouling turbulence plate heat exchanger assembly structure, referring to... Figure 1-5 The system includes a frame 1, on which a movable locking plate 2 is installed. Several heat exchange plates 3 are installed on the frame 1. The locking plate 2 is used to press or loosen the stacked heat exchange plates 3. Its position can be adjusted by bolts or hydraulic devices. The heat exchange plates 3 are made of thin metal plates and have corrugated or herringbone patterns on the surface to enhance the turbulence effect and heat exchange efficiency. Each heat exchange plate 3 is provided with a sealing gasket. The sealing gasket is made of high-temperature resistant and corrosion-resistant rubber or silicone material and is embedded in the sealing groove on the edge of the plate to prevent medium leakage between adjacent plates. When the locking plate 2 is pressed, the sealing gaskets between each heat exchange plate 3 are compressed to form mutually isolated flow channels. The hot and cold media flow on both sides of the plate and exchange heat. Each heat exchange plate 3 is fixed with two side ears 31. The two side ears 31 on the same heat exchange plate 3 are symmetrically arranged. The side ears 31 are metal protrusions or welded ear plates located on both sides of the heat exchange plate 3.

[0020] Guide rods 4 are provided on both sides of the frame 1. Each guide rod 4 is connected to the frame 1 via a fixing bracket 41. The axis of the guide rod 4 is parallel to the arrangement direction of the heat exchange plates 3. Each guide rod 4 is provided with a separation component. The function of the separation component is to separate the originally compressed heat exchange plates 3 one by one when cleaning or replacing the sealing gasket, forming a gap that is easy to operate. The separation component includes several movable frames 51, which are slidably sleeved on the guide rods 4. The number of movable frames 51 is proportional to the number of heat exchange plates 3. Correspondingly, each heat exchange plate 3 has a movable frame 51 on each side. A convex key is fixed on the guide rod 4. The convex key extends along the axial direction of the guide rod 4 and has a rectangular or semi-circular cross section. Each movable frame 51 is provided with a keyway that matches the convex key. The arrangement of the convex key and keyway can prevent the movable frame 51 from rotating around the guide rod 4, so that the movable frame 51 can only move in a straight line along the guide rod 4. This anti-rotation structure ensures that the movable frame 51 always maintains the correct direction during the pushing process and will not get stuck due to deflection.

[0021] Each movable frame 51 is fixed with a rotating shaft 52, and each rotating shaft 52 is rotatably mounted with a swing frame 53. The swing frame 53 can swing around the rotating shaft 52 within a certain angle so as to engage or disengage with the side lug 31. Each swing frame 53 is provided with a slot 54, the width of which matches the thickness of the side lug 31. Each swing frame 53 is fixed with a fixing rod 55 on its side. The fixing rod 55 is used to drive the swing frame 53 to rotate. Two adjacent movable frames 51 are connected by a connecting rope 56. The connecting rope 56 is not elastic, and the length of the connecting rope 56 determines the maximum distance between adjacent movable frames 51. When a movable frame 51 is pushed, the connecting rope 56 will be tightened step by step, thereby driving all the movable frames 51 to move in sequence.

[0022] Several swing frames 53 are respectively positioned opposite several heat exchange plates 3, such as Figure 1 As shown, for any heat exchange plate 3, there are swing brackets 53 on both sides, and the two side ears 31 are respectively engaged in the slots 54 on the two swing brackets 53. This allows the heat exchange plate 3 to move through the two side ears 31 when the two swing brackets 53 move. When the swing brackets 53 move along the guide rod 4, the side ears 31 are driven by the slots 54, thereby pulling the heat exchange plate 3 out of the stacked state. When several heat exchange plates 3 are in the pressed state, the several moving brackets 51 located on the same guide rod 4 are in the retracted state, forming a shape as shown in the figure. Figure 4 As shown, the connecting ropes 56 between adjacent moving frames 51 are slack or unstressed, and all moving frames 51 are close together. A pushing component is provided on one side of the frame 1. The pushing component is used to control the movement of several moving frames 51. The pushing component provides initial power through manual operation, so that the moving frames 51 at the end start to move. The pushing component includes two push rods 61. The two push rods 61 are respectively fixed on the moving frames 51 at the end positions on the two guide rods 4. Each push rod 61 has a rotatable connecting frame 62 at the end away from the corresponding moving frame 51. The connecting frame 62 is connected to the push rod 61 by a pin or hinge, allowing the grip 63 to swing relative to the push rod 61. The two connecting frames 62 are connected by the grip 63. The grip 63 has a U-shaped structure. The two ends of the U-shaped grip 63 are respectively fixed to the two connecting frames 62, and the middle part serves as a handhold for easy application of force by the operator.

[0023] In the initial state, such as Figure 1As shown, under the influence of gravity, the handle 63 hangs down naturally. At this time, the handle 63 does not occupy too much space. This design keeps the device compact under normal heat exchange operation and will not interfere with surrounding equipment or personnel operations. When cleaning the heat exchange plate 3 is required, the operator first pulls the handle 63 to rotate it to a horizontal position, and then pushes the handle 63 to lift it to a horizontal position. After that, the axis of the push rod 61 is basically consistent with the direction of force applied to the handle 63, which facilitates linear pushing. When the handle 63 moves, it can drive the two push rods 61 to move through the two connecting brackets 62. For any push rod 61, when the push rod 61 moves, it can drive the corresponding moving frame 51 to move. For several moving frames 51 on the same guide rod 4, when the moving frame 51 at the end position moves under the action of the push rod 61, When in motion, the movable frame 51 can drive the adjacent movable frame 51 to move via the corresponding connecting rope 56. Since the connecting rope 56 is inelastic, once the distance moved by the end movable frame 51 exceeds the slack length of the connecting rope 56, the connecting rope 56 will tighten, thereby pulling the next movable frame 51. Therefore, under the action of the connecting rope 56, each movable frame 51 can pull the adjacent movable frame 51 to move, which allows several movable frames 51 to move. This step-by-step transmission design allows the operator to push only one movable frame 51 to pull all the movable frames 51 apart in sequence. When several movable frames 51 on both sides of the heat exchange plate 3 move synchronously, each swing frame 53 can push the corresponding side ear 31, causing the heat exchange plate 3 at the corresponding position to move, ultimately causing several heat exchange plates 3 to separate from each other, forming a... Figure 5 As shown, there is a noticeable gap between the separated heat exchange plates 3, and the original clamping force is released. In this case, the operator can clean or replace the sealing gaskets between two adjacent heat exchange plates 3. The operation is convenient. Since it is not necessary to disassemble the entire heat exchanger, maintenance time and labor intensity are reduced. It is especially suitable for working conditions where scaling is easy to occur.

[0024] Example 2: Based on Example 1, this example discloses an anti-fouling turbulence plate heat exchanger assembly structure, referring to... Figure 6-9The frame 1 is equipped with two pressing components. These components control the synchronous rotation of several swing frames 53 on the same guide rod 4, causing the swing frames 53 to separate from their corresponding side ears 31. After the separation components pull the heat exchange plates 3 apart, the swing frames 53 remain stuck on the side ears 31. To completely remove the heat exchange plates 3 from the frame 1, the swing frames 53 need to be disengaged from the side ears 31. The pressing components control the separation of the swing frames 53 from the side ears 31. Each pressing component includes a side plate 71 and two guide frames 72. The side plate 71 is detachably mounted on the frame 1. It can be connected to the frame 1 with bolts for easy disassembly and installation. Before removing the heat exchange plate 3 from the frame 1, the staff needs to remove the side plate 71 from the frame 1. One guide frame 72 is fixed on the side plate 71, and the other guide frame 72 is fixed on the frame 1. The two guide frames 72 are arranged facing each other. Each guide frame 72 has an arc-shaped structure. The radius of curvature of the arc-shaped guide frame 72 matches the movement trajectory of the pressure rod 73, so that the pressure rod 73 can move along the arc.

[0025] A pressure rod 73 is provided between the two guide frames 72. The pressure rod 73 is made of round steel or round tube, and its two ends are respectively inserted into the arc-shaped grooves of the two guide frames 72. Two limiting collars 74 are fixedly sleeved on both ends of the pressure rod 73. The limiting collars 74 can be fixed to the pressure rod 73 by welding or set screws. For two adjacent limiting collars 74, the two limiting collars 74 are located on both sides of the guide frame 72, and each limiting collar 74 is in contact with the guide frame 72. The four limiting collars 74 together provide a limit for the pressure rod 73, preventing the pressure rod 73 from falling off the two guide frames 72, and at the same time ensuring that the pressure rod 73 can only move along the guide frames. 72 moves but cannot move horizontally. This structure ensures that the pressure rod 73 always fits against the arc-shaped guide frame 72 during movement, thereby accurately pressing down each fixed rod 55. The pressure rod 73 is connected to the frame 1 by a tension spring 75. One end of the tension spring 75 is fixed to the pressure rod 73, and the other end is fixed to the frame 1. In the initial state, under the elastic force of the tension spring 75, the pressure rod 73 is located at the upper limit position of the two guide frames 72. At this time, the pressure rod 73 is far away from the fixed rod 55 and will not interfere with the swing frame 53. An assembly rod 76 is fixed at the end of the pressure rod 73, and an opening 761 is provided at the end of the assembly rod 76.

[0026] When it is necessary to remove the heat exchange plates 3 from the frame 1, the operator first controls several heat exchange plates 3 to separate using two separation components. After separation, there is sufficient gap between the heat exchange plates 3, but the swing frame 53 still holds the side lugs 31. After several heat exchange plates 3 are separated, the operator presses down on the pressure rod 73, causing the pressure rod 73 to move along the two guide frames 72. When pressing down, it is necessary to overcome the tension of the tension spring 75 to pull the pressure rod 73 from the high position to the low position. Figure 9As shown, the pressure rod 73 is set opposite to several fixed rods 55 on the same guide rod 4. Therefore, when the pressure rod 73 moves, the pressure rod 73 can press down several fixed rods 55, causing several fixed rods 55 to drive several swing frames 53 to rotate synchronously until several swing frames 53 rotate 90 degrees. Since the fixed rods 55 are fixed to the side of the swing frame 53, the pressure rod 73 pressing down on the fixed rods 55 will cause the swing frame 53 to swing outward around the rotating shaft 52. In this case, the slot 54 on each swing frame 53 will separate from the corresponding side ear 31. At this time, the swing frame 53 will not affect the smooth disassembly of the heat exchange plate 3. The staff can directly pull the heat exchange plate 3 out of the frame 1 for thorough cleaning or replacement of the sealing gasket.

[0027] Two positioning components are provided on frame 1 to fix the positions of the two pressure rods 73. After the swing frame 53 rotates to the horizontal position, if the pressure rod 73 is released, the tension spring 75 will reset the pressure rod 73, and the swing frame 53 will return to the vertical position. The side lug 31 may re-lock in. Therefore, the positioning components are needed to lock the pressure rod 73 in the low position. The positioning components include a mounting plate 81, which is fixed to the surface of frame 1. The mounting plate 81 has an opening, and a movable pin 82 is slidably disposed in the opening. The movable pin 82 can be a cylindrical pin or a bolt, and its diameter matches the opening. When the swing frame 53 rotates 90 degrees, the through 761 on the assembly rod 76 moves to the position directly opposite the opening on the mounting plate 81. At this time, the operator uses the movable pin 82 to pass the movable pin 82 through the assembly rod 76. The through-hole 761 on the plate and the opening on the mounting plate 81 are fixed by the movable pin 82 to the mounting rod 76, thereby fixing the position of the pressure rod 73. After the movable pin 82 is inserted, the pressure rod 73 is restricted to a low position and cannot be reset upward. When the position of the pressure rod 73 is fixed, each swing frame 53 is constrained by the pressure rod 73, which can prevent the swing frame 53 from automatically resetting under the action of gravity and avoid the swing frame 53 from affecting the smooth disassembly of the heat exchange plate 3. After the maintenance or replacement of the heat exchange plate 3 is completed, the staff only needs to pull out the movable pin 82, and the pressure rod 73 will automatically return to its position under the action of the tension spring 75. The swing frame 53 returns to the vertical position so that it can engage with the side lug 31 when reinstalling the heat exchange plate 3. The whole structure is ingeniously designed and easy to operate, which significantly improves the convenience and efficiency of plate heat exchanger maintenance.

[0028] It is worth noting that the corrugations of adjacent heat exchange plates 3 are usually arranged at a certain angle (such as perpendicular to each other), which causes the fluid to constantly change direction in the flow channel, forming strong turbulence. This turbulence enhances the scouring force of the fluid on the plate surface, which can effectively peel off and carry away deposits, thereby reducing scaling. At the same time, by optimizing the flow guiding area in the corner hole area of ​​the heat exchange plate 3, the fluid stagnation area can be eliminated, which can prevent impurities from depositing there. The design of the flow channel angle change is gentle, which can reduce the precipitation and scaling of solute caused by sudden flow changes. This is existing technology and will not be elaborated on here.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A scale-resistant, turbulence-prone heat exchanger plate assembly structure, characterized in that, The frame (1) includes a movable locking plate (2) and several heat exchange plates (3). The locking plate (2) is used to press the heat exchange plates (3). Each heat exchange plate (3) has two side ears (31) fixed on it. The two side ears (31) on the same heat exchange plate (3) are symmetrically arranged. Guide rods (4) are provided on both sides of the frame (1). Each guide rod (4) is connected to the frame (1) through a fixing frame (41). Each guide rod (4) is provided with a separation component. A pushing component is provided on one side of the frame (1).

2. The anti-scaling and turbulence-prone heat exchanger plate assembly structure according to claim 1, characterized in that, The separation assembly includes several movable frames (51), each of which is slidably mounted on a guide rod (4). Each movable frame (51) is fixed with a rotating shaft (52), and each rotating shaft (52) is rotatably mounted with a swing frame (53). Each swing frame (53) is provided with a slot (54), and each swing frame (53) is fixed with a fixing rod (55) on its side. Two adjacent movable frames (51) are connected by a connecting rope (56), which is not elastic.

3. The anti-fouling and turbulence-prone heat exchanger plate assembly structure according to claim 2, characterized in that, A convex key is fixed on the guide rod (4), and a keyway adapted to the convex key is opened on each of the movable frames (51).

4. The anti-scaling and turbulence-prone heat exchanger plate assembly structure according to claim 2, characterized in that, Several swing frames (53) are respectively positioned opposite several heat exchange plates (3).

5. The anti-scaling and turbulence-prone heat exchanger plate assembly structure according to claim 2, characterized in that, For any one of the heat exchange plates (3), the two side ears (31) are respectively locked in the slots (54) on the corresponding two swing frames (53).

6. The anti-fouling and turbulence-prone heat exchanger plate assembly structure according to claim 2, characterized in that, The pushing assembly includes two push rods (61), which are respectively fixed on the movable frame (51) at the end position on the two guide rods (4). Each push rod (61) has a rotatable connecting frame (62) at the end away from the corresponding movable frame (51). The two connecting frames (62) are connected by a grip (63), which has a U-shaped structure.

7. The anti-scaling and turbulence-prone plate heat exchanger assembly structure according to claim 2, characterized in that, The frame (1) is provided with two pressing components and two positioning components. The pressing components are used to control the synchronous rotation of several swing frames (53) on the same guide rod (4). The pressing assembly includes a side plate (71) and two guide frames (72). The side plate (71) is detachably mounted on the frame (1). One of the guide frames (72) is fixed on the side plate (71), and the other guide frame (72) is fixed on the frame (1). The two guide frames (72) are arranged facing each other. Each guide frame (72) has an arc-shaped structure. A pressure rod (73) is provided between the two guide frames (72). Two limiting collars (74) are fixedly sleeved at both ends of the pressure rod (73). The pressure rod (73) is connected to the frame (1) by a tension spring (75). An assembly rod (76) is fixed at the end of the pressure rod (73). An opening (761) is provided on the assembly rod (76). The pressure rod (73) is set facing several fixing rods (55) on the same guide rod (4).

8. The anti-scaling and turbulence-prone heat exchanger plate assembly structure according to claim 7, characterized in that, For two adjacent limiting collars (74), the two limiting collars (74) are located on both sides of the corresponding guide frame (72), and each limiting collar (74) is in contact with the guide frame (72).

9. The anti-scaling and turbulence-prone plate heat exchanger assembly structure according to claim 7, characterized in that, The positioning component includes a mounting plate (81) which is fixed to the surface of the frame (1). The mounting plate (81) has an opening, and a movable pin (82) is slidably disposed in the opening.

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