Pulley device of plate heat exchanger

Abstract

The utility model discloses a pulley device of a plate heat exchanger, which belongs to the field of pulley devices and comprises a pulley component, the pulley component comprises a rectangular frame, a plurality of pulley bodies and a plurality of mounting shafts, the pulley bodies are rotatably mounted in the rectangular frame, and the mounting shafts are fixedly mounted at two ends of the pulley bodies respectively. The pulley assembly comprises a rectangular frame, a plurality of pulley bodies and a plurality of mounting shafts, a dismounting assembly is movably mounted in the rectangular frame, the dismounting assembly is composed of a fixed spring, two rectangular pipelines and a fixed insertion rod, and the two rectangular pipelines are fixedly mounted at the two ends of the fixed spring correspondingly. The contact area of the pulley assembly and the upper guide beam is larger, so that the pressure in unit area is smaller, and the equipment is not easy to abrade; and by arranging the dismounting and mounting assembly, dismounting and mounting of the pulley assembly can be simple and convenient, and thus dismounting, mounting and overhauling of the pulley assembly are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of pulley devices, and in particular to a pulley device for a plate heat exchanger. Background Technology

[0002] A plate heat exchanger is a high-efficiency heat exchanger composed of a series of corrugated metal plates stacked together. Thin rectangular channels are formed between the plates, facilitating heat exchange. It is an ideal device for liquid-liquid and liquid-vapor heat exchange. The plate heat exchanger is a highly efficient heat exchange device, and its working principle is based on indirect heat transfer. It consists of a series of corrugated metal plates stacked together, forming thin rectangular channels between the plates, facilitating heat exchange. In a plate heat exchanger, hot and cold fluids flow separately through channels separated by sealing gaskets, exchanging heat with the adjacent plates to reach the desired temperature. The corrugated design of the plates not only increases the heat dissipation area and improves heat transfer efficiency but also creates fluid turbulence, enhancing the heat transfer effect. Simultaneously, the plates and corrugations are closely adjacent, conducting heat through the plates to achieve efficient heat transfer, and the two fluids do not mix during heat exchange, maintaining heat transfer efficiency. Plate heat exchangers often have pulleys installed on their movable pressure plates. During the installation, commissioning, and maintenance of plate heat exchangers, these plates need to be moved frequently to replace or clean the plates. The pulley design makes the movement of the pressure plate easier and more convenient, improving work efficiency. The pulley interacts with the upper guide beam through rolling friction. Compared to sliding friction, rolling friction has less resistance, thus significantly reducing friction and wear on the pressure plate during movement. Traditionally, pulleys are connected to the movable pressure plate on the plate heat exchanger by bolts. This connection method limits the portability of pulley disassembly and assembly, hindering quick disassembly and maintenance. Furthermore, the traditional pulley has a small contact area with the upper guide beam, resulting in higher pressure per unit area and ultimately causing wear on the equipment. Therefore, a pulley system for plate heat exchangers is needed to solve these problems. Utility Model Content

[0003] The main objective of this invention is to provide a pulley device for a plate heat exchanger, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A pulley device for a plate heat exchanger includes a pulley assembly. The pulley assembly consists of a rectangular frame, pulley bodies, and mounting shafts. Several pulley bodies are rotatably mounted within the rectangular frame. Several mounting shafts are fixedly mounted at both ends of the pulley bodies. A disassembly / assembly assembly is movably mounted within the rectangular frame. The disassembly / assembly assembly consists of a fixing spring, rectangular pipes, and fixing rods. There are two rectangular pipes, each fixedly mounted at one end of a fixing spring. Four fixing rods are symmetrically fixed in pairs at the outer ends of the two rectangular pipes. The pulley assembly is mounted on two U-shaped mounting brackets via the disassembly / assembly assembly.

[0006] Preferably, the two U-shaped mounting brackets are symmetrically fixedly installed on the upper end of the movable clamping plate, and the movable clamping plate is sleeved on the lower guide beam and the upper guide beam.

[0007] Preferably, each of the two U-shaped mounting brackets has two symmetrical fixing holes, and the fixing holes penetrate one side wall of the U-shaped mounting bracket.

[0008] Preferably, the pulley assembly is located at the upper end of the upper guide beam, and a plurality of shaft holes are symmetrically opened on the rectangular frame. At the same time, four through holes are symmetrically opened on the rectangular frame. The shaft holes and through holes penetrate the inner and outer walls of the rectangular frame.

[0009] Preferably, the mounting shaft on the pulley assembly is rotatably mounted in a shaft hole opened on the rectangular frame, and the pulley body is in contact with the upper end of the upper guide beam.

[0010] Preferably, the fixing spring and rectangular tube on the assembly / disassembly assembly are both located inside the rectangular frame, and the fixing rod passes through the through hole opened on the rectangular frame and is inserted into the fixing hole opened on the U-shaped mounting bracket.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting up a pulley assembly consisting of a rectangular frame, multiple pulley bodies, and multiple mounting shafts, the contact area between the pulley assembly and the upper guide beam is made larger, resulting in lower pressure per unit area and thus reducing wear on the equipment. The addition of a disassembly and assembly component makes the disassembly and assembly of the pulley assembly simple and convenient, facilitating its disassembly, assembly, and maintenance. Attached Figure Description

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For the utility model Figure 1 A magnified view of point A;

[0015] Figure 3This is a schematic diagram of the disassembled pulley assembly of this utility model;

[0016] Figure 4 This is a structural schematic diagram of the disassembly and assembly components of this utility model.

[0017] In the diagram: 1. Pulley assembly; 2. U-shaped mounting bracket; 3. Disassembly assembly; 4. Movable clamping plate; 5. Lower guide beam; 6. Upper guide beam; 7. Rectangular frame; 8. Shaft hole; 9. Through hole; 10. Pulley body; 11. Fixed insertion hole; 12. Fixed spring; 13. Rectangular pipe; 14. Fixed insertion rod; 15. Mounting shaft. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a pulley device for a plate heat exchanger includes a pulley assembly 1, which consists of a rectangular frame 7, pulley bodies 10, and mounting shafts 15. Several pulley bodies 10 are rotatably mounted within the rectangular frame 7. Several mounting shafts 15 are fixedly mounted at both ends of the pulley bodies 10. A disassembly / assembly assembly 3 is movably mounted within the rectangular frame 7. The disassembly / assembly assembly 3 consists of a fixing spring 12, rectangular pipes 13, and fixing rods 14. There are two rectangular pipes 13, each fixedly mounted at both ends of the fixing spring 12. Four fixing rods 14 are symmetrically fixedly mounted in pairs at the outer ends of the two rectangular pipes 13. The pulley assembly 1 is mounted on two U-shaped... On the mounting bracket 2, two U-shaped mounting brackets 2 are symmetrically fixedly installed on the upper end of the movable clamping plate 4. The movable clamping plate 4 is sleeved on the lower guide beam 5 and the upper guide beam 6. Two fixing holes 11 are symmetrically opened on each of the two U-shaped mounting brackets 2, and the fixing holes 11 penetrate one side wall of the U-shaped mounting bracket 2. By setting a pulley assembly 1 composed of a rectangular frame 7, multiple pulley bodies 10 and multiple mounting shafts 15, the contact area between the pulley assembly 1 and the upper guide beam 6 is large, thereby reducing the pressure per unit area and making the equipment less prone to wear. By setting a disassembly and assembly component 3, the disassembly and assembly of the pulley assembly 1 can be made simple and convenient, thus facilitating the disassembly, assembly and maintenance of the pulley assembly 1.

[0020] Furthermore, the pulley assembly 1 is located at the upper end of the upper guide beam 6. Several shaft holes 8 are symmetrically opened on the rectangular frame 7, and four through holes 9 are also symmetrically opened on the rectangular frame 7. The shaft holes 8 and through holes 9 pass through the inner and outer walls of the rectangular frame 7. The mounting shaft 15 on the pulley assembly 1 is rotatably installed in the shaft hole 8 opened on the rectangular frame 7. The pulley body 10 contacts the upper end of the upper guide beam 6. When the movable clamping plate 4 moves on the lower guide beam 5 and the upper guide beam 6, the pulley body 10 on the pulley assembly 1 will generate friction and roll with the upper guide beam 6. Compared with sliding friction, rolling friction has less resistance, so it can significantly reduce the friction and wear of the movable clamping plate 4 during the movement process.

[0021] Furthermore, the fixing spring 12 and rectangular pipe 13 on the disassembly assembly 3 are both located inside the rectangular frame 7. The fixing rod 14 passes through the through hole 9 on the rectangular frame 7 and is inserted into the fixing hole 11 on the U-shaped mounting bracket 2. When it is necessary to disassemble, repair, or replace the pulley assembly 1, the two rectangular pipes 13 on the disassembly assembly 3 can be pulled to bring them closer together. At this time, the two rectangular pipes 13 will compress and deform the fixing spring 12. As the two rectangular pipes 13 approach each other, the fixing rod 14 will slowly move out of the fixing hole 11 on the U-shaped mounting bracket 2. When the fixing rod 14 is completely removed from the fixing hole 11, the fixing of the pulley assembly 1 is released. At this point, the pulley assembly 1 can be removed from between the two U-shaped mounting brackets 2. When it is necessary to install the pulley assembly 1 on the two U-shaped mounting brackets 2, first bring the two rectangular pipes 13 close to each other so that the outer end of the fixing rod 14 is flush with the end face of the rectangular frame 7. Then, the pulley assembly 1 can be placed between the two U-shaped mounting brackets 2. When the through hole 9 on the rectangular frame 7 is aligned with the fixing hole 11 on the U-shaped mounting bracket 2, the rectangular pipes 13 are loosened. At this time, under the elastic force of the fixing spring 12, the two rectangular pipes 13 will move away from each other, and the fixing rod 14 will be inserted into the fixing hole 11 on the U-shaped mounting bracket 2. At this time, the pulley assembly 1 is fixedly installed on the two U-shaped mounting brackets 2.

[0022] 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 pulley device for a plate heat exchanger, comprising a pulley assembly (1), characterized in that: The pulley assembly (1) consists of a rectangular frame (7), a pulley body (10), and a mounting shaft (15). There are several pulley bodies (10), all of which are rotatably installed inside the rectangular frame (7). There are several mounting shafts (15), which are respectively fixedly installed at both ends of the pulley bodies (10). A disassembly assembly (3) is movably installed inside the rectangular frame (7). The disassembly assembly (3) consists of a fixing spring (12), a rectangular pipe (13), and a fixing rod (14). There are two rectangular pipes (13), which are respectively fixedly installed at both ends of the fixing spring (12). There are four fixing rods (14), which are symmetrically fixedly installed at the outer ends of the two rectangular pipes (13). The pulley assembly (1) is installed on two U-shaped mounting brackets (2) through the disassembly assembly (3).

2. The pulley device for a plate heat exchanger according to claim 1, characterized in that: The two U-shaped mounting brackets (2) are symmetrically fixedly installed on the upper end of the movable clamping plate (4), which is sleeved on the lower guide beam (5) and the upper guide beam (6).

3. The pulley device for a plate heat exchanger according to claim 2, characterized in that: Two fixing holes (11) are symmetrically provided on each of the two U-shaped mounting brackets (2), and the fixing holes (11) penetrate one side wall of the U-shaped mounting bracket (2).

4. The pulley device for a plate heat exchanger according to claim 3, characterized in that: The pulley assembly (1) is located at the upper end of the upper guide beam (6). Several shaft holes (8) are symmetrically opened on the rectangular frame (7). Four through holes (9) are symmetrically opened on the rectangular frame (7). The shaft holes (8) and through holes (9) penetrate the inner and outer walls of the rectangular frame (7).

5. The pulley device for a plate heat exchanger according to claim 4, characterized in that: The mounting shaft (15) on the pulley assembly (1) is rotatably mounted in the shaft hole (8) opened on the rectangular frame (7), and the pulley body (10) is in contact with the upper end of the upper guide beam (6).

6. The pulley device for a plate heat exchanger according to claim 5, characterized in that: The fixing spring (12) and rectangular pipe (13) on the disassembly assembly (3) are both located inside the rectangular frame (7). The fixing rod (14) passes through the through hole (9) on the rectangular frame (7) and is inserted into the fixing hole (11) on the U-shaped mounting bracket (2).

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