Multi-flow plate heat exchanger

Abstract

The utility model discloses a multi-flow plate heat exchanger, which belongs to the field of plate heat exchangers and comprises a fixed plate, an upper guide beam and a lower guide beam are fixedly mounted at the rear end of the fixed plate, a movable plate is movably mounted on the upper guide beam and the lower guide beam, a plurality of connecting components are inserted into the fixed plate and the movable plate, and each connecting component consists of a square rod and an anti-falling baffle. The anti-disengaging baffle is fixedly installed at the front end of the square rod, a plurality of clamping tooth grooves are formed in the inner end of the square rod, a fixing assembly is rotatably installed on the rear side of the movable plate and composed of a two-way lead screw, two rotating handles, a movable base plate and fixing clamping teeth, and the two rotating handles are fixedly installed at the two ends of the two-way lead screw respectively. The fixed plate and the movable plate are connected by arranging the connecting assembly and the fixed assembly, so that the disassembly and assembly steps of the fixed plate and the movable plate are relatively simple, the disassembly and assembly efficiency of the fixed plate and the movable plate can be improved, and then the disassembly, maintenance or cleaning efficiency of the multi-flow plate heat exchanger can be improved.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchangers, and in particular to a multi-flow plate heat exchanger. Background Technology

[0002] Multi-pass plate heat exchangers consist of numerous independent plates, each composed of a pair of symmetrical plates, each covered with numerous fins. The plates are interlaced, forming many tiny heat exchange channels. Fluid flows across the plates, passing through these channels on the plates and fins, thus achieving heat transfer. A heat source (such as steam) is introduced into the plates and transfers heat through the fins, raising the fluid's temperature from a low temperature. Conversely, a cold source (such as cooling water) is introduced into the plates and absorbs heat through the fins, cooling the fluid from a high temperature and releasing heat. This process is repeated, enabling the fluid to transfer heat energy and completing the heat transfer process. Multi-pass plate heat exchangers are highly efficient heat exchange devices widely used in chemical, petroleum, power, and metallurgical industries.

[0003] In traditional multi-pass plate heat exchangers, the movable and fixed plates are often connected and fixed by multiple sets of bolts and nuts, as shown in patent application number CN201921508112.2. Multi-pass plate heat exchangers often require disassembly, maintenance, or cleaning during use. The process of disassembling and assembling the movable and fixed plates, which are connected and fixed by multiple sets of bolts and nuts, is quite cumbersome, resulting in low efficiency in disassembly and assembly of the movable and fixed plates. This, in turn, reduces the efficiency of disassembly, maintenance, or cleaning of multi-pass plate heat exchangers. Therefore, a multi-pass plate heat exchanger is needed to solve the above problems. Utility Model Content

[0004] The main objective of this invention is to provide a multi-flow plate heat exchanger that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multi-pass plate heat exchanger includes a fixed plate, with an upper guide beam and a lower guide beam fixedly installed at the rear end of the fixed plate. A movable plate is movably installed on the upper and lower guide beams. Several connecting components are inserted into the fixed plate and the movable plate. Each connecting component consists of a square rod and an anti-detachment baffle. The anti-detachment baffle is fixedly installed at the front end of the square rod. Several locking grooves are formed on the inner end of the square rod. A fixed component is rotatably installed on the rear side of the movable plate. The fixed component consists of a bidirectional lead screw, a rotating handle, a movable base plate, and fixed locking teeth. There are two rotating handles, which are respectively fixedly installed at both ends of the bidirectional lead screw. There are two movable base plates, which are symmetrically installed on the bidirectional lead screw. Several sets of fixed locking teeth are evenly fixedly installed at the outer ends of the two movable base plates. The fixed locking teeth can be inserted into the locking tooth grooves.

[0007] Preferably, the upper guide beam is located above the lower guide beam, and a plurality of plates are installed between the fixed plate and the movable plate.

[0008] Preferably, a mounting block is fixedly installed at the rear end of the movable plate, the mounting block has a mounting groove, and both the fixed plate and the movable plate have a number of square holes.

[0009] Preferably, the square rod on the connecting assembly is inserted into the square holes opened on the fixed plate and the movable plate from front to back, and the anti-detachment baffle is located on the front side of the fixed plate.

[0010] Preferably, the bidirectional lead screw on the fixing component is rotatably mounted in a mounting groove opened on the mounting block.

[0011] Preferably, the movable base plate on the fixed component has a threaded hole, the movable base plate is mounted on the bidirectional lead screw through the threaded hole, and the movable base plate is located inside several connecting components.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By connecting the fixed plate and the movable plate with connecting and fixing components, the assembly and disassembly steps of the fixed plate and the movable plate can be simplified, thereby improving the efficiency of assembly and disassembly of the fixed plate and the movable plate, and thus improving the efficiency of disassembly, maintenance or cleaning of multi-pass plate heat exchangers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 A magnified view of point A;

[0016] Figure 3 This is a schematic diagram of the structure of the movable plate and mounting block of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the connecting component of this utility model;

[0018] Figure 5 This is a structural schematic diagram of the fixing component of this utility model.

[0019] In the diagram: 1. Fixed plate; 2. Upper guide beam; 3. Lower guide beam; 4. Movable plate; 5. Connecting assembly; 6. Fixed assembly; 7. Plate; 8. Mounting block; 9. Mounting groove; 10. Square hole; 11. Square rod; 12. Anti-detachment baffle; 13. Chestle groove; 14. Two-way lead screw; 15. Rotating handle; 16. Moving base plate; 17. Fixed cleave; 18. Threaded hole. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, a multi-pass plate heat exchanger includes a fixed plate 1. An upper guide beam 2 and a lower guide beam 3 are fixedly mounted on the rear end of the fixed plate 1. A movable plate 4 is movably mounted on the upper guide beam 2 and the lower guide beam 3. Several connecting components 5 are inserted into the fixed plate 1 and the movable plate 4. Each connecting component 5 consists of a square rod 11 and an anti-detachment baffle 12. The anti-detachment baffle 12 is fixedly mounted on the front end of the square rod 11. Several locking grooves 13 are formed on the inner end of the square rod 11. A fixed component 6 is rotatably mounted on the rear side of the movable plate 4. The fixed component 6 consists of a bidirectional lead screw 14, a rotating handle 15, a movable base plate 16, and fixing teeth 17. There are two rotating handles 15, each fixedly mounted on the bidirectional lead screw 14. At both ends of plate 4, two movable base plates 16 are symmetrically mounted on the bidirectional lead screw 14. Several sets of fixed locking teeth 17 are evenly fixedly mounted on the outer ends of the two movable base plates 16. The fixed locking teeth 17 can be inserted into the locking tooth groove 13. The upper guide beam 2 is located above the lower guide beam 3. Several plates 7 are installed between the fixed plate 1 and the movable plate 4. The rear end of the movable plate 4 is fixedly mounted with a mounting block 8. The mounting block 8 has a mounting groove 9. Several square holes 10 are opened on both the fixed plate 1 and the movable plate 4. During use, the hot and cold medium will flow in the small channels on the plates 7 and exchange heat through the plates 7. After long-term use, the plates 7 need to be disassembled for inspection or cleaning. When disassembling plate 7, since plate 7 is clamped and fixed by fixed plate 1 and movable plate 4, it is necessary to first release the fixing of fixed plate 1 and movable plate 4. The method is to rotate the bidirectional lead screw 14, so that the two movable base plates 16 move closer to each other, thereby causing the fixing teeth 17 to move out of the tooth groove 13. Then, the connecting assembly 5 can be pulled out from fixed plate 1 and movable plate 4. At this time, the fixing of fixed plate 1 and movable plate 4 is released, and plate 7 can be removed from between fixed plate 1 and movable plate 4 for inspection or cleaning. After the inspection or cleaning of plate 7 is completed, it can be reinstalled between fixed plate 1 and movable plate 4, and then the connecting assembly 5 can be inserted into the fixed plate 1. The square holes 10 on plate 1 and movable plate 4 are opened, and the locking grooves 13 on square rod 11 are turned inward. Then, the bidirectional screw 14 is rotated to make the two movable base plates 16 move away from each other, and finally the fixing locking teeth 17 are inserted into the locking grooves 13. At this time, the fixed plate 1 and movable plate 4 are fixed together, and the plate 7 is also fixed between the fixed plate 1 and movable plate 4. By setting the connecting component 5 and the fixing component 6 to connect the fixed plate 1 and movable plate 4, the disassembly and assembly steps of the fixed plate 1 and movable plate 4 can be simplified, thereby improving the efficiency of disassembly and assembly of the fixed plate 1 and movable plate 4, and thus improving the efficiency of disassembly, maintenance or cleaning of multi-pass plate heat exchangers.

[0022] Furthermore, the square rod 11 on the connecting assembly 5 is inserted from front to back into the square holes 10 opened on the fixed plate 1 and the movable plate 4. The anti-detachment baffle 12 is located on the front side of the fixed plate 1. The bidirectional lead screw 14 on the fixing assembly 6 is rotatably installed in the mounting groove 9 opened on the mounting block 8. The movable base plate 16 on the fixing assembly 6 has a threaded hole 18. The movable base plate 16 is installed on the bidirectional lead screw 14 through the threaded hole 18, and the movable base plate 16 is located inside several connecting assemblies 5. The movable base plate 16 contacts the rear end of the movable plate 4. When the fixed plate 1 and the movable plate 4 are installed and fixed together or when the fixed plate 1 and the movable plate 4 are released, the bidirectional lead screw 14 can be rotated by rotating the handle 15. At this time, the bidirectional lead screw 14 will rotate in the mounting groove 9. Since the movable base plate 16 and the bidirectional lead screw 14 are threadedly connected, and the movable base plate 16 and the movable plate 4 are threadedly connected, the bidirectional lead screw 14 can be rotated by rotating the handle 15. The rear end of the movable plate 4 is in contact, so as the bidirectional lead screw 14 rotates, the movable base plate 16 will move on the bidirectional lead screw 14. When the two movable base plates 16 approach each other, the movable base plate 16 will drive the fixed locking tooth 17 to move out of the locking tooth groove 13. At this time, the fixing of the connecting component 5 is released, and then the connecting component 5 can be pulled out from the fixed plate 1 and the movable plate 4, thereby releasing the fixing of the fixed plate 1 and the movable plate 4. When the two movable base plates 16 move away from each other, if the connecting component 5 is inserted into the square hole 10 opened on the fixed plate 1 and the movable plate 4, and the locking tooth groove 13 opened on the square rod 11 faces inward, then the movable base plate 16 will drive the fixed locking tooth 17 to insert into the locking tooth groove 13. At this time, the connecting component 5 will be fixed on the fixed plate 1 and the movable plate 4, and the fixed plate 1 and the movable plate 4 will also be fixed together by the connecting component 5 and the fixed component 6.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-pass plate heat exchanger comprising a fixed plate (1), a rear end of the fixed plate (1) being fixedly provided with an upper guide beam (2) and a lower guide beam (3), the upper guide beam (2) and the lower guide beam (3) being movably provided with a movable plate (4), characterized in that: The fixed plate (1) and the movable plate (4) are provided with a plurality of connecting assemblies (5), the connecting assemblies (5) are composed of square rods (11) and anti-off baffle plates (12), the anti-off baffle plates (12) are fixedly installed at the front ends of the square rods (11), the inner ends of the square rods (11) are provided with a plurality of clamping tooth grooves (13), the rear side of the movable plate (4) is rotatably provided with a fixing assembly (6), the fixing assembly (6) is composed of bidirectional screw rods (14), rotating handles (15), moving base plates (16) and fixed clamping teeth (17), the rotating handles (15) are two and are fixedly installed at the two ends of the bidirectional screw rods (14), the moving base plates (16) are two and are symmetrically installed on the bidirectional screw rods (14), the fixed clamping teeth (17) are a plurality of groups and are uniformly fixedly installed at the outer ends of the two moving base plates (16), and the fixed clamping teeth (17) can be inserted into the clamping tooth grooves (13).

2. A multi-pass plate heat exchanger according to claim 1, characterized in that: The upper guide beam (2) is located above the lower guide beam (3), and a plurality of plate pieces (7) are installed between the fixed plate (1) and the movable plate (4).

3. A multi-pass plate heat exchanger according to claim 2, characterized in that: The rear end of the movable plate (4) is fixedly provided with a mounting block (8), the mounting block (8) is provided with a mounting groove (9), and a plurality of square holes (10) are formed in the fixed plate (1) and the movable plate (4).

4. A multi-pass plate heat exchanger according to claim 3, characterized in that: The square rods (11) of the connecting assemblies (5) are inserted from front to back into the square holes (10) formed in the fixed plate (1) and the movable plate (4), and the anti-off baffle plates (12) are located on the front side of the fixed plate (1).

5. A multi-pass plate heat exchanger according to claim 4, characterized in that: The bidirectional screw rods (14) of the fixing assembly (6) are rotatably installed in the mounting groove (9) formed in the mounting block (8).

6. A multi-pass plate heat exchanger according to claim 5, characterized in that: The moving base plates (16) of the fixing assembly (6) are provided with threaded holes (18), the moving base plates (16) are installed on the bidirectional screw rods (14) through the threaded holes (18), and the moving base plates (16) are located on the inner sides of the plurality of connecting assemblies (5).

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