Combined plate heat exchanger and heat exchange component thereof

Abstract

The invention discloses a combined plate heat exchanger and a heat exchange component thereof, and belongs to the field of heat exchangers, the combined plate heat exchanger comprises a fixed pressing plate, one side of the fixed pressing plate is connected with four water inlet pipelines, the top and the bottom of the other side of the fixed pressing plate are fixedly connected with an upper guide rod and a lower guide rod, the outer surface of the upper guide rod is sleeved with a movable pressing plate, and the outer surface of the lower guide rod is sleeved with a movable pressing plate. One side of the upper guide rod and one side of the lower guide rod are fixedly connected with supporting columns, heat exchange pieces are connected between the upper guide rod and the lower guide rod in a sliding mode, and the four corners of the fixed pressing plate are in threaded connection with locking screw rods. Leaked media can be collected through a water receiving tank, the dead weight of the water receiving tank is increased to drive a sliding plate to extrude a control switch, so that an alarm lamp is powered on to work, an alarm sound is given out in time to remind a worker of abrasion of the joint of a water inlet pipeline and an external pipeline in time, and follow-up timely maintenance and replacement are needed; and resource waste and working environment pollution caused by continuous leakage of a heat exchange medium are avoided.

Description

Technical Field

[0001] The present invention relates to the field of heat exchangers, and more particularly to a combined plate heat exchanger and a heat exchange component thereof. Background Art

[0002] Plate heat exchanger is a kind of high-efficiency heat exchanger made of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between each plate, and heat is exchanged through the plate. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application and long service life. Under the same pressure loss, its traditional system is 3-5 times higher than that of tube heat exchanger, and the footprint is one-third of that of tube heat exchanger, and the heat recovery rate can be as high as more than 90%.

[0003] When the heat exchanger is working normally, there is huge pressure inside its connecting pipe. The flange on the connecting pipe is a connecting component. It also needs sufficient pressure to ensure that the medium will not leak when connected to the flange of the external pipe. However, there is friction when the flange is connected, which can easily lead to wear problems. The worn position will cause the fitting pressure to decrease due to the insufficient fit between the flanges, which is prone to medium leakage, thus causing abnormal operation of the heat exchanger. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a combined plate heat exchanger and a heat exchange component thereof.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A combined plate heat exchanger comprises a fixed pressing plate, one side of the fixed pressing plate is connected to four water inlet pipes, the top and bottom of the other side of the fixed pressing plate are fixedly connected to an upper guide rod and a lower guide rod, the outer surface of the upper guide rod is sleeved with a movable pressing plate, one side of the upper guide rod and the lower guide rod is fixedly connected to a pillar, a heat exchange plate is slidably connected between the upper guide rod and the lower guide rod, locking screws are threadedly connected at the four corners of the fixed pressing plate, and one side of the fixed pressing plate is connected to a warning component for monitoring water leakage.

[0007] The warning component includes an arc-shaped frame fixed on a fixed pressing plate, a guide pipe is fixedly connected to the lower surface of the arc-shaped frame, a water receiving trough is sleeved on the outer surface of the guide pipe, fixed plates are fixedly connected on both sides of the guide pipe, a fixed rod is fixedly connected on the lower surface of the fixed plate, a first spring is sleeved on the outer surface of the fixed rod, a control switch is fixedly connected to the bottom of the fixed rod, slides are fixedly connected on both sides of the water receiving trough, and an alarm light is fixedly connected to the front side of the arc-shaped frame.

[0008] Furthermore, the other side of the locking screw passes through the interior of the movable clamping plate, a locking nut is provided on the outer surface of the locking screw, the fixing rod passes through the interior of the slide plate, the slide plate and the fixing rod slide with each other, the top and bottom of the first spring are fixedly connected to the fixing plate and the slide plate respectively, the arc frame is located below the water inlet pipe, a sealing assembly is provided on the outer surface of the water inlet pipe, one of the control switches is electrically connected to the alarm light, and the front and rear sides of one side of the movable clamping plate are connected to an extrusion assembly.

[0009] Furthermore, the sealing assembly includes two first servo motors symmetrically fixed on the outer surface of the water inlet pipe, the output end of the first servo motor is fixedly connected to a threaded rod, the outer surfaces of the two threaded rods are threadedly connected to a movable frame, and the side of the movable frame away from the first servo motor is fixedly connected to a sealing ring.

[0010] Furthermore, the movable frame is sleeved on the outside of the water inlet pipe, the sealing ring is sleeved on the flange of the water inlet pipe, the other control switch is electrically connected to the first servo motor, and a fastening component is provided on one side of the movable frame.

[0011] Furthermore, the fastening assembly includes a second servo motor fixed on the outer surface of the moving frame, an annular rack sliding at the edge of one side of the moving frame, and four first sliding grooves evenly opened on one side of the moving frame, the output end of the second servo motor is fixedly connected to a gear, the inner surface of the annular rack is evenly fixedly connected to four triangular blocks, the interior of the first sliding groove is slidably connected to an extrusion arc plate, and the outer surface of the extrusion arc plate is fixedly connected to an extrusion column.

[0012] Furthermore, a second servo motor switch is fixedly connected to a side of the arc frame away from the warning light, an extrusion plate is fixedly connected to a side of the movable frame close to the second servo motor switch, and the gear and the annular rack are meshed with each other.

[0013] Furthermore, the extrusion assembly includes a rotating shaft rotating inside the movable clamping plate, two circular grooves opened on the front and rear sides of one side of the fixed clamping plate, and a flattening assembly sliding on the front and rear sides of the side where the fixed clamping plate and the movable clamping plate are close to each other, one side of the rotating shaft is fixedly connected to a rectangular rod, the outer surface of the rectangular rod is sleeved with a transmission sleeve, the other side of the transmission sleeve is inserted into the circular groove, the outer surface of the transmission sleeve is fixedly connected to a push rod, and the side of the movable clamping plate away from the fixed clamping plate is connected to a locking assembly.

[0014] Furthermore, the locking assembly includes a fixed sleeve fixed on one side of the movable pressure plate and a second gear fixed on the outer surface of the rotating shaft, the fixed sleeve is slidably connected to a pull rod inside, the bottom of the pull rod is fixedly connected to an arc rack, the outer surface of the pull rod is sleeved with a second spring, the second spring is located between the arc rack and the fixed sleeve, and the arc rack is meshed with the second gear.

[0015] Furthermore, the flattening assembly includes a second sliding groove provided on the front and rear sides of the side where the fixed pressing plate and the movable pressing plate are close to each other, and a pressing plate that slides between the fixed pressing plate and the movable pressing plate, the pressing plate is provided with receiving grooves on both sides, the top of the receiving groove is provided with a through groove, a vertical rod is slidably connected inside the through groove, a sliding block is fixedly connected on the side where the two vertical rods are away from each other, a third spring is fixedly connected on the side where the two vertical rods are close to each other, one side of the third spring is fixedly connected to the inside of the through groove, and one side of the sliding block extends to the inside of the second sliding groove and slides with each other

[0016] The heat exchange component suitable for the combined plate heat exchanger includes a heat exchange plate, water inlets are opened on both sides of the heat exchange plate, a fixed sleeve block is fixedly connected to the inner surface of the heat exchange plate, a filter frame is sleeved inside the water inlet, two plug rods are slidably connected to the inner surface of the filter frame, the outer surface of the plug rod is sleeved with a spring, the bottom of the plug rod is fixedly connected to a finger groove, and the top of the plug rod extends to the inside of the fixed sleeve block.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This solution sets up a warning component to collect the leaked medium through a water trough. The weight of the water trough increases, driving the slide to squeeze the control switch, so that the alarm light is powered on and works. The alarm sounds in time to remind the staff that there is wear at the connection between the water inlet pipe and the external pipe, and timely inspection and replacement are required to avoid continuous leakage of heat exchange medium and waste of resources.

[0019] 2. This solution sets up a sealing component. The threaded rod drives the moving frame to move closer to the flange on the outside of the water inlet pipe through the thread, driving the sealing ring to move on the outside of the flange, tightly wrapping and sealing the flange of the water inlet pipe and the flange of the external pipe to prevent the heat exchange medium from continuing to leak. In this way, the leakage can be quickly blocked in a short time without stopping the normal heat exchange work, avoiding delays in work efficiency.

[0020] 3. This scheme realizes the movement of the triangular block by setting a fastening component, and the movement of the extrusion column is pushed by the hypotenuse. The extrusion column pushes the extrusion arc plate to slide inside the first slide groove. The four extrusion arc plates move toward the sealing ring and squeeze at the same time, and the extrusion force is applied to the sealing ring, so that the sealing ring tightly wraps the gap at the flange connection. Even if there is a large pressure inside, it can ensure that the medium will not leak from between the flanges, further improving the sealing performance of the sealing ring, and effectively ensuring the smooth progress of the heat exchange process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the warning component of the present invention;

[0023] Figure 3 It is a schematic diagram of the sealing assembly structure of the present invention;

[0024] Figure 4 The fastening assembly structure of the present invention is schematically shown in FIG. Figure 1 ;

[0025] Figure 5 The fastening assembly structure of the present invention is schematically shown in FIG. Figure 2 ;

[0026] Figure 6 It is a schematic diagram of the structure of the extrusion assembly of the present invention;

[0027] Figure 7 For the present invention Figure 6 A magnified image of point A;

[0028] Figure 8 It is a schematic diagram of the structure of the flattening assembly of the present invention;

[0029] Fig. 9 It is a schematic diagram of the second chute structure of the present invention;

[0030] Fig.10 It is a schematic diagram of the internal structure of the heat exchange plate of the present invention.

[0031] Description of the numbers in the figure:

[0032] 1. Fixed pressing plate; 2. Movable pressing plate; 3. Locking screw; 4. Lower guide rod;

[0033] 5. Warning component; 51. Arc frame; 52. Warning light; 53. Water tank; 54. Fixing rod;

[0034] 55. Sealing assembly; 551. First servo motor; 552. Threaded rod; 553. Sealing ring; 554. Moving frame;

[0035] 56, fastening assembly; 561, second servo motor; 562, gear; 563, annular rack; 564, extrusion column; 565, second servo motor switch; 566, first slide slot; 567, triangular block; 568, extrusion plate; 569, extrusion arc plate;

[0036] 57. control switch; 58. slide plate; 59. first spring; 510. fixing plate; 511. flow guide tube;

[0037] 6. Extrusion assembly; 61. Rotating shaft; 62. Rectangular rod; 63. Push rod; 64. Transmission sleeve;

[0038] 65, locking assembly; 651, fixed sleeve; 652, pull rod; 653, second spring; 654, arc rack; 655, second gear;

[0039] 66, flattening assembly; 661, flattening plate; 662, through slot; 663, receiving slot; 664, third spring; 665, slider; 666, vertical rod; 667, second slide slot;

[0040] 67. Circular groove;

[0041] 7. Water inlet pipe; 8. Upper guide rod;

[0042] 9. Heat exchanger; 91. Water inlet; 92. Fixed sleeve; 93. Filter frame; 94. Spring; 95. Insert rod; 96. Finger slot;

[0043] 10. Pillar. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0045] See also Figures 1 to 10 A combined plate heat exchanger comprises a fixed pressing plate 1, one side of the fixed pressing plate 1 is connected to four water inlet pipes 7, the top and bottom of the other side of the fixed pressing plate 1 are fixedly connected to an upper guide rod 8 and a lower guide rod 4, the outer surface of the upper guide rod 8 is sleeved with a movable pressing plate 2, one side of the upper guide rod 8 and the lower guide rod 4 is fixedly connected to a support 10, a heat exchange plate 9 is slidably connected between the upper guide rod 8 and the lower guide rod 4, locking screws 3 are threadedly connected at the four corners of the fixed pressing plate 1, and one side of the fixed pressing plate 1 is connected to a warning component 5 for monitoring water leakage.

[0046] like Figure 2As shown, the warning component 5 includes an arc-shaped frame 51 fixed on the fixed clamping plate 1, a guide pipe 511 is fixedly connected to the lower surface of the arc-shaped frame 51, a water receiving trough 53 is sleeved on the outer surface of the guide pipe 511, fixed plates 510 are fixedly connected on both sides of the guide pipe 511, a fixed rod 54 is fixedly connected to the lower surface of the fixed plate 510, a first spring 59 is sleeved on the outer surface of the fixed rod 54, a control switch 57 is fixedly connected to the bottom of the fixed rod 54, slide plates 58 are fixedly connected on both sides of the water receiving trough 53, and an alarm light 52 is fixedly connected to the front side of the arc-shaped frame 51.

[0047] The other side of the locking screw 3 passes through the interior of the movable clamping plate 2, and a locking nut is provided on the outer surface of the locking screw 3. The fixing rod 54 passes through the interior of the slide plate 58, and the slide plate 58 and the fixing rod 54 slide with each other. The top and bottom of the first spring 59 are fixedly connected to the fixing plate 510 and the slide plate 58 respectively. The arc frame 51 is located below the water inlet pipe 7. A sealing assembly 55 is provided on the outer surface of the water inlet pipe 7. A control switch 57 is electrically connected to the alarm light 52, and the front and rear sides of one side of the movable clamping plate 2 are connected to the extrusion assembly 6.

[0048] When the heat exchanger is working, the water inlet pipe 7 is connected to the external pipe through a flange. When wear occurs between the flanges, medium leakage occurs, and the leaked medium will drip from the flange on the water inlet pipe 7, and the dripping medium enters the interior of the arc frame 51, and enters the interior of the water receiving tank 53 through the guide pipe 511 along the arc frame 51. As the medium inside the water receiving tank 53 increases, the weight of the water receiving tank 53 becomes larger, which drives the slide plate 58 to move downward along the outer surface of the fixed rod 54, and the slide plate 58 pulls the first spring 59 to stretch. When the slide plate 58 is close to the control switch 57, the slide plate 58 presses the control switch 57, and a control switch 57 opens the circuit, so that the alarm light 52 is energized to work, and the alarm sound is issued in time to remind the staff to timely check the wear of the connection between the water inlet pipe 7 and the external pipe, and timely maintenance and replacement are required later, so as to avoid continuous leakage of the heat exchange medium, waste of resources, and pollution of the working environment.

[0049] like Figure 3 As shown, the sealing assembly 55 includes two first servo motors 551 symmetrically fixed on the outer surface of the water inlet pipe 7, the output end of the first servo motor 551 is fixedly connected to a threaded rod 552, the outer surfaces of the two threaded rods 552 are threadedly connected to a moving frame 554, and the side of the moving frame 554 away from the first servo motor 551 is fixedly connected to a sealing ring 553.

[0050] The moving frame 554 is sleeved on the outside of the water inlet pipe 7 , the sealing ring 553 is sleeved on the flange of the water inlet pipe 7 , another control switch 57 is electrically connected to the first servo motor 551 , and a fastening assembly 56 is provided on one side of the moving frame 554 .

[0051] During the heat exchange process, there is a leakage at the water inlet pipe 7, which forces the heat exchange work to be stopped. Further maintenance will delay work efficiency. Therefore, when the two slides 58 squeeze the two control switches 57 at the same time, one control switch 57 controls the alarm light 52 to work, and the other control switch 57 controls the first servo motor 551. When the alarm light 52 is powered on, the other control switch 57 controls the first servo motor 551 to work. The first servo motor 551 drives the threaded rod 552 to rotate, and the threaded rod 552 drives the moving frame 554 to approach the flange on the outside of the water inlet pipe 7 through the thread, driving the sealing ring 553 to move to the outside of the flange, tightly wrapping and sealing the flange of the water inlet pipe 7 and the flange of the external pipe to prevent the heat exchange medium from continuing to leak. Therefore, the leak can be quickly blocked in a short time without stopping the normal heat exchange work, thereby avoiding delays in work efficiency.

[0052] like Figure 3 and Figure 4 As shown, the fastening assembly 56 includes a second servo motor 561 fixed on the outer surface of the moving frame 554, an annular rack 563 sliding at the edge of one side of the moving frame 554, and four first slide grooves 566 evenly opened on one side of the moving frame 554, the output end of the second servo motor 561 is fixedly connected to the gear 562, the inner surface of the annular rack 563 is evenly fixedly connected to four triangular blocks 567, the interior of the first slide groove 566 is slidably connected to the extrusion arc plate 569, and the outer surface of the extrusion arc plate 569 is fixedly connected to the extrusion column 564.

[0053] A second servo motor switch 565 is fixedly connected to the side of the arc frame 51 away from the warning light 52 , and a pressing plate 568 is fixedly connected to the side of the moving frame 554 close to the second servo motor switch 565 . The gear 562 and the annular rack 563 are meshed with each other.

[0054] After the extrusion arc plate 569 seals the interface of the two connected flanges, the sealing ring 553 relies on its own pressure to temporarily seal the leak. However, the local pressure at the flange leak is too high, and the sealing effect of the sealing ring 553 will be greatly reduced. Leakage may still exist, and the effect is not very good. Therefore, when the moving frame 554 approaches the flange of the water inlet pipe 7, it will also drive the extrusion plate 568 to approach the second servo motor switch 565. The extrusion plate 568 squeezes the second servo motor switch 565. At this time, the second servo motor 561 is powered on to work, and the second servo motor 561 drives the gear 562 to rotate a certain number of circles. The gear 562 will drive the annular rack 563 that is meshed with it to rotate at the same time. The annular rack 563 rotates, and the annular rack 563 synchronously drives the four triangular blocks 567 to move toward the extrusion column 564, so that the hypotenuse of the triangular block 567 contacts the top of the extrusion column 564, and the triangular block 567 continues to move and pushes the extrusion column 564 to move through the hypotenuse. The extrusion column 564 pushes the extrusion arc plate 569 to slide inside the first slide groove 566, and the four extrusion arc plates 569 move toward the sealing ring 553 and squeeze, and apply the extrusion force on the sealing ring 553, so that the sealing ring 553 tightly wraps the gap at the flange connection. Even if there is a large pressure inside, it can ensure that the medium will not leak from between the flanges, further improving the sealing performance of the sealing ring 553, and effectively ensuring the smooth progress of the heat exchange process.

[0055] like Figure 6 As shown, the extrusion assembly 6 includes a rotating shaft 61 rotating inside the movable clamping plate 2, two circular grooves 67 opened on the front and rear sides of one side of the fixed clamping plate 1, and a flattening assembly 66 sliding on the front and rear sides of the side where the fixed clamping plate 1 and the movable clamping plate 2 are close to each other. A rectangular rod 62 is fixedly connected to one side of the rotating shaft 61, and a transmission sleeve 64 is sleeved on the outer surface of the rectangular rod 62. The other side of the transmission sleeve 64 is inserted into the circular groove 67, and a push rod 63 is fixedly connected to the outer surface of the transmission sleeve 64. The side of the movable clamping plate 2 away from the fixed clamping plate 1 is connected to a locking assembly 65.

[0056] After a period of use, the inside of the heat exchanger 9 needs to be cleaned, replaced and repaired, and the heat exchanger 9 needs to be disassembled and assembled. During the assembly process, it is necessary to ensure that each heat exchanger 9 needs to be aligned, and there can be no deviation between the holes. The slightest error will cause the risk of leakage and cross-flow;

[0057] When reinstalling the heat exchanger 9, in addition to ensuring that the heat exchanger 9 is aligned up and down, it is also necessary to effectively align the side edges of the multiple groups of heat exchanger fins 9. Therefore, before the multiple groups of heat exchanger fins 9 are installed between the upper guide rod 8 and the lower guide rod 4 and are not completely tightened, the rotating shaft 61 drives the rectangular rod 62 to rotate, and the rectangular rod 62 drives the push rod 63 to rotate through the transmission sleeve 64. The push rod 63 rotates to the flattening component 66, and the flattening component 66 is pushed to approach the heat exchanger fin 9. The two groups of flattening components 66 effectively limit the side edges of the heat exchanger fins 9, ensuring that the multiple heat exchanger fins 9 can be accurately aligned, avoiding offset between the water inlets 91 on the two heat exchanger fins 9, and at the same time, the heat exchanger fins 9 can be further fixed, further improving the working stability of the heat exchanger fins 9, and finally, the locking screw 3 is rotated to push the movable clamping plate 2 to clamp the heat exchanger fins 9.

[0058] like Figure 7 As shown, the locking assembly 65 includes a fixed sleeve 651 fixed on one side of the movable clamping plate 2 and a second gear 655 fixed on the outer surface of the rotating shaft 61. The fixed sleeve 651 is internally slidably connected with a pull rod 652, the bottom of the pull rod 652 is fixedly connected with an arc rack 654, and the outer surface of the pull rod 652 is sleeved with a second spring 653.

[0059] The second spring 653 is located between the arc rack 654 and the fixed sleeve 651 , and the arc rack 654 and the second gear 655 are meshed with each other.

[0060] When the rotating shaft 61 drives the push rod 63 to move in a circle through the transmission, the push rod 63 pushes the flattening assembly 66 to the side of the heat exchanger 9 for squeezing, thereby ensuring that the heat exchanger 9 will not deviate under the action of external force during the subsequent installation of the heat exchanger 9. Therefore, before rotating the rotating shaft 61, the pull rod 652 is pulled to drive the arc rack 654 to move upward. After the rotating shaft 61 reaches a suitable position, the pull rod 652 is released at this time, and under the elastic force of the second spring 653, the arc rack 654 is quickly pushed toward the second gear 655 and meshes with each other, so that the second gear 655 and the rotating shaft 61 cannot continue to rotate, thereby ensuring that the push rod 63 always pushes the flattening assembly 66 to contact the heat exchanger 9 to limit the position, thereby avoiding the action of external force to cause the heat exchanger 9 and the flattening assembly 66 to move as a whole.

[0061] like Figure 8 and Fig. 9As shown, the flattening assembly 66 includes a second sliding groove 667 opened on the front and rear sides of the side where the fixed pressing plate 1 and the movable pressing plate 2 are close to each other, and a flat pressing plate 661 that slides between the fixed pressing plate 1 and the movable pressing plate 2, receiving grooves 663 are opened on both sides of the flat pressing plate 661, a through groove 662 is opened on the top of the receiving groove 663, a vertical rod 666 is slidably connected inside the through groove 662, a sliding block 665 is fixedly connected on the side where the two vertical rods 666 are away from each other, a third spring 664 is fixedly connected on the side where the two vertical rods 666 are close to each other, one side of the third spring 664 is fixedly connected to the inside of the through groove 662, and one side of the sliding block 665 extends to the inside of the second sliding groove 667 and slides with each other.

[0062] By squeezing the side of the heat exchange plate 9 with the pressing plate 661 on the flattening assembly 66, the heat exchange plate 9 can be well aligned to avoid displacement. However, when cleaning the heat exchange plate 9, the pressing plate 661 needs to be removed to avoid the disadvantage that the heat exchange plate 9 cannot be removed. The two vertical rods 666 are pushed to slide inside the through groove 662 and approach each other. The two vertical rods 666 drive the slider 665 to move out from the inside of the second slide groove 667, so that the pressing plate 661 can be released and removed from between the fixed pressing plate 1 and the movable pressing plate 2.

[0063] like Fig.10 As shown, the heat exchange component suitable for the combined plate heat exchanger includes a heat exchange plate 9, water inlets 91 are opened on both sides of the heat exchange plate 9, a fixed sleeve block 92 is fixedly connected to the inner surface of the heat exchange plate 9, a filter frame 93 is sleeved inside the water inlet 91, and two plug rods 95 are slidably connected to the inner surface of the filter frame 93. The outer surface of the plug rod 95 is sleeved with a spring 94, the bottom of the plug rod 95 is fixedly connected with a finger groove 96, and the top of the plug rod 95 extends to the inside of the fixed sleeve block 92.

[0064] During the heat exchange process, there will be more or less impurities and foreign matter inside the medium. Over the years, impurities will accumulate inside the heat exchange plate. Too much impurities will cause a decrease in heat exchange efficiency. Therefore, a filter frame 93 is provided at the water inlet 91 on the heat exchange plate 9. When the medium enters the interior of the heat exchange plate 9, the impurities can be filtered through the filter frame 93. When cleaning the heat exchange plate 9, press the two finger grooves 96 to drive the two insertion rods 95 to move out from the interior of the fixed sleeve block 92, so that the filter frame 93 can be removed from the interior of the water inlet 91 to remove the impurities.

[0065] Instructions for use: First, the leaked water can be collected through the warning component 5, and at the same time, the slide plate 58 is driven to open the control switch 57 by moving the water receiving trough 53 downward, thereby controlling the alarm light 52 to sound an alarm, and promptly reminding the staff that there is a leak in the flange of the water inlet pipe 7, which is convenient for subsequent maintenance by the staff. With the cooperation between the various components of the sealing component 55, when a leak occurs at the water inlet pipe 7, the sealing ring 553 can be promptly driven to move and wrap towards the flange to avoid further leakage of the medium. Under the action of the fastening component 56, the sealing ring 553 is squeezed by four extrusion arc plates 569, which can ensure the pressure at the sealing ring 553, further improve the sealing performance of the sealing ring 553, and ensure the continuous heat exchange process.

[0066] Secondly, the pressing plate 661 is squeezed by pushing the rod 63 to squeeze the side of the heat exchange plate 9 to ensure that each heat exchange plate 9 can be aligned to avoid the heat exchange plate 9 from being offset. Under the action of the locking assembly 65, the rotating shaft 61 is well limited to avoid the displacement of the pressing plate 661 when the heat exchange plate 9 is installed later. With the cooperation of the various components of the flattening assembly 66, the pressing plate 661 can be quickly disassembled and assembled to improve work efficiency.

[0067] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined plate heat exchanger, comprising a fixed pressing plate (1), one side of the fixed pressing plate (1) is connected to four water inlet pipes (7), the top and bottom of the other side of the fixed pressing plate (1) are fixedly connected to an upper guide rod (8) and a lower guide rod (4), the outer surface of the upper guide rod (8) is sleeved with a movable pressing plate (2), one side of the upper guide rod (8) and the lower guide rod (4) are fixedly connected to a support (10), a heat exchange plate (9) is slidably connected between the upper guide rod (8) and the lower guide rod (4), and locking screws (3) are threadedly connected at the four corners of the fixed pressing plate (1); Features: A warning component (5) for monitoring water leakage is connected to one side of the fixed pressing plate (1); The warning component (5) comprises an arc frame (51) fixed on a fixed pressing plate (1); a guide tube (511) is fixedly connected to the lower surface of the arc frame (51); a water receiving groove (53) is sleeved on the outer surface of the guide tube (511); fixed plates (510) are fixedly connected to both sides of the guide tube (511); a fixed rod (54) is fixedly connected to the lower surface of the fixed plate (510); a first spring (59) is sleeved on the outer surface of the fixed rod (54); a control switch (57) is fixedly connected to the bottom of the fixed rod (54); slide plates (58) are fixedly connected to both sides of the water receiving groove (53); and an alarm light (52) is fixedly connected to the front side of the arc frame (51).

2. A combined plate heat exchanger according to claim 1, characterized in that: The other side of the locking screw (3) passes through the interior of the movable clamping plate (2), and a locking nut is provided on the outer surface of the locking screw (3). The fixing rod (54) passes through the interior of the slide plate (58), and the slide plate (58) and the fixing rod (54) slide with each other. The top and bottom of the first spring (59) are fixedly connected to the fixing plate (510) and the slide plate (58) respectively. The arc frame (51) is located below the water inlet pipe (7), and a sealing component (55) is provided on the outer surface of the water inlet pipe (7). A control switch (57) is electrically connected to the alarm light (52), and the front and rear sides of one side of the movable clamping plate (2) are connected to an extrusion component (6).

3. A combined plate heat exchanger according to claim 2, characterized in that: The sealing assembly (55) comprises two first servo motors (551) symmetrically fixed on the outer surface of the water inlet pipe (7); the output end of the first servo motor (551) is fixedly connected to a threaded rod (552); the outer surfaces of the two threaded rods (552) are threadedly connected to a moving frame (554); and the side of the moving frame (554) away from the first servo motor (551) is fixedly connected to a sealing ring (553).

4. A combined plate heat exchanger according to claim 3, characterized in that: The movable frame (554) is sleeved on the outside of the water inlet pipe (7), the sealing ring (553) is sleeved on the flange of the water inlet pipe (7), the other control switch (57) is electrically connected to the first servo motor (551), and a fastening component (56) is provided on one side of the movable frame (554).

5. A combined plate heat exchanger according to claim 4, characterized in that: The fastening assembly (56) comprises a second servo motor (561) fixed on the outer surface of the moving frame (554), an annular rack (563) sliding on the edge of one side of the moving frame (554), and four first sliding grooves (566) uniformly arranged on one side of the moving frame (554); the output end of the second servo motor (561) is fixedly connected with a gear (562); the inner surface of the annular rack (563) is uniformly fixedly connected with four triangular blocks (567); the interior of the first sliding groove (566) is slidably connected with an extrusion arc plate (569); and the outer surface of the extrusion arc plate (569) is fixedly connected with an extrusion column (564).

6. A combined plate heat exchanger according to claim 5, characterized in that: A second servo motor switch (565) is fixedly connected to the side of the arc frame (51) away from the warning light (52), and a pressing plate (568) is fixedly connected to the side of the movable frame (554) close to the second servo motor switch (565), and the gear (562) and the annular rack (563) are meshed with each other.

7. A combined plate heat exchanger according to claim 6, characterized in that: The extrusion assembly (6) comprises a rotating shaft (61) rotating inside the movable clamping plate (2), two circular grooves (67) provided on the front and rear sides of one side of the fixed clamping plate (1), and a flattening assembly (66) sliding on the front and rear sides of one side where the fixed clamping plate (1) and the movable clamping plate (2) are close to each other. A rectangular rod (62) is fixedly connected to one side of the rotating shaft (61), a transmission sleeve (64) is sleeved on the outer surface of the rectangular rod (62), the other side of the transmission sleeve (64) is inserted into the circular groove (67), a push rod (63) is fixedly connected to the outer surface of the transmission sleeve (64), and a locking assembly (65) is connected to the side of the movable clamping plate (2) away from the fixed clamping plate (1).

8. A combined plate heat exchanger according to claim 7, characterized in that: The locking assembly (65) includes a fixed sleeve (651) fixed on one side of the movable clamping plate (2) and a second gear (655) fixed on the outer surface of the rotating shaft (61); the fixed sleeve (651) is slidably connected to a pull rod (652) inside, the bottom of the pull rod (652) is fixedly connected to an arc rack (654), the outer surface of the pull rod (652) is sleeved with a second spring (653), the second spring (653) is located between the arc rack (654) and the fixed sleeve (651), and the arc rack (654) and the second gear (655) are meshed with each other.

9. A combined plate heat exchanger according to claim 8, characterized in that: The flattening assembly (66) comprises a second sliding groove (667) provided on the front and rear sides of the side where the fixed pressing plate (1) and the movable pressing plate (2) are close to each other, and a flat pressing plate (661) that slides between the fixed pressing plate (1) and the movable pressing plate (2), the flat pressing plate (661) having receiving grooves (663) on both sides, the top of the receiving groove (663) having a through groove (662), the through groove (662) having a vertical rod (666) slidably connected therein, the two vertical rods (666) having a side fixedly connected thereto with a slider (665) away from each other, the two vertical rods (666) having a side fixedly connected thereto with a third spring (664) close to each other, one side of the third spring (664) being fixedly connected to the inside of the through groove (662), and one side of the slider (665) extending to the inside of the second sliding groove (667) and sliding relative to each other.

10. A heat exchange component suitable for the combined plate heat exchanger according to any one of claims 1 to 9, characterized in that: The invention comprises a heat exchange plate (9), water inlets (91) are provided on both sides of the heat exchange plate (9), a fixed sleeve block (92) is fixedly connected to the inner surface of the heat exchange plate (9), a filter frame (93) is sleeved inside the water inlet (91), two plug rods (95) are slidably connected to the inner surface of the filter frame (93), a spring (94) is sleeved on the outer surface of the plug rod (95), a finger groove (96) is fixedly connected to the bottom of the plug rod (95), and the top of the plug rod (95) extends to the inside of the fixed sleeve block (92).

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