Plate-fin heat exchanger with impurities easy to clean

Abstract

The utility model provides a plate-fin heat exchanger easy to clean impurities, which relates to the field of plate-fin heat exchangers and comprises a heat exchanger body, the heat exchanger body comprises sealing ends on two sides, sealing strips are fixed on the inner sides of the sealing ends, partition plates are connected to the upper ends and the lower ends of the sealing strips, fin plates are connected between the sealing strips, an outer sealing plate is arranged between the sealing ends, and the outer sealing plate is connected with the partition plates. The outer sealing plates cover the outer sides of the fin plates, the upper ends and the lower ends of the outer sealing plates are connected with fixing plates, inserting grooves are formed in the surfaces of the fixing plates, mounting assemblies are inserted into the outer sides of the inserting grooves, and the mounting assemblies are connected to the edges of the upper sides and the lower sides of the outer sealing plates. The plate-fin heat exchanger solves the problems that a shell of an existing plate-fin heat exchanger is inconvenient to disassemble, and impurities on the inner side of a fin plate are inconvenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of plate-fin heat exchangers, in particular to a plate-fin heat exchanger which is easy to clean impurities. Background Art

[0002] Plate-fin heat exchangers are mainly composed of partitions, fins, seals and guide vanes. Fins, guide vanes and seals are placed between two adjacent partitions to form a sandwich, which becomes a channel. Such sandwiches are stacked according to different fluid flow methods and brazed into a whole to form a plate bundle, which is the core of the plate-fin heat exchanger. With the continuous development of science and technology, the heat exchange efficiency of plate-fin heat exchangers has been improved to a new level compared with previous heat exchangers. It also has the advantages of small size and light weight. It is now widely used in the fields of refrigeration and cryogenic technology, air liquefaction and separation, natural gas liquefaction, and gas cryogenic liquefaction. After searching, the prior art (publication number: CN218846972U) records "a plate-fin heat exchanger that is easy to position and install, including a plate-fin heat exchanger body, with mounting plates symmetrically connected to both sides of the plate-fin heat exchanger body, and a water inlet pipe and a water outlet pipe fixedly connected to both sides of the plate-fin heat exchanger body, a docking groove is provided on the front surface wall of the mounting plate, and a fixing structure is provided on one side of the docking groove. A second groove is provided on the top of the plate-fin heat exchanger body, and a lifting structure is installed inside the second groove. A telescopic placement structure is provided on the top of the plate-fin heat exchanger body, and a mounting hole is provided on the front surface wall of the plate-fin heat exchanger body. By providing a fixing structure, the utility model can achieve the positioning and fixing of the plate-fin heat exchanger body, thereby ensuring the accuracy of the plate-fin heat exchanger body after installation. At the same time, when tightening the bolts for installation, there is no need to rely on manual hand-held assistance, which enhances the convenience during installation."

[0003] Although the plate-fin heat exchanger in the prior art has achieved the effect of easy installation, it still has some shortcomings: after long-term use, the internal fin gaps of the existing plate-fin heat exchanger are prone to accumulate dirt and impurities, resulting in a gradual deterioration of the heat exchange effect. The existing fins are inside the shell, and the shell is connected by bolts, which makes disassembly inconvenient. Secondly, when cleaning after disassembly, it is necessary to carry cleaning tools in advance, which makes cleaning inconvenient. Utility Model Content

[0004] In order to overcome the defects of the existing technology, a plate-fin heat exchanger that is easy to clean impurities is provided to solve the problems of the existing plate-fin heat exchanger that the shell is inconvenient to disassemble and the impurities on the inside of the fin are inconvenient to clean.

[0005] To achieve the above-mentioned purpose, a plate-fin heat exchanger that is easy to clean impurities is provided, comprising: a heat exchanger body, the heat exchanger body comprising sealed ends on both sides, and a seal is fixed on the inner side of the sealed end, and the upper and lower ends of the seal are connected to a partition, and the fin plates are connected between the seals, an outer sealing plate is provided between the sealed ends, and the outer sealing plate covers the outer side of the fin plate, and the upper and lower ends of the outer sealing plate are connected to a fixed plate, a plug-in groove is provided on the surface of the fixed plate, and an installation component is plugged into the outer side of the plug-in groove, and the installation component is connected to the upper and lower side edges of the outer sealing plate.

[0006] Furthermore, the outer wall of the outer sealing plate is provided with a set of handles, and the handles are configured as arc-shaped bent rod structures.

[0007] Furthermore, a receiving groove is provided on the inner wall of the outer sealing plate, and a cleaning rod is hinged to the inner wall of the receiving groove via a damping shaft.

[0008] Furthermore, the cleaning rods are provided in a row with equal spacing on the inner wall of the outer sealing plate, the length of the cleaning rods is greater than the thickness of the heat exchanger body, and the outer walls of the cleaning rods are provided with bristles.

[0009] Furthermore, the mounting assembly includes a welding plate welded at the edge of the outer sealing plate, and the inner side wall of the welding plate is provided with a guide groove, and a guide rod is provided inside the guide groove, and a spring is sleeved on the outer side of the guide rod.

[0010] Furthermore, the installation assembly also includes a plug-in block, and the plug-in block is set to an L-shaped structure, and the plug-in block is slidably connected in the guide groove, and the guide rod slides through the plug-in block.

[0011] Furthermore, the plug-in slot is configured as an L-shaped slot cavity structure, and the plug-in slot is matched with the plug-in block for plugging.

[0012] The beneficial effects of the present invention are:

[0013] 1. When disassembling, the sliding blocks connected to the outside of the welding plate are moved upward and downward respectively, so that the plug-in block slides on the outside of the guide rod to squeeze the spring, thereby partially disengaging the plug-in block from the inside of the plug-in slot. Then, the outer sealing plate is pulled outward as a whole, so that the entire plug-in block is disengaged from the plug-in slot, thereby achieving the effect of easy disassembly;

[0014] 2. When cleaning, first rotate the cleaning rod on the inner side of the disassembled outer cover plate out of the storage slot, while keeping a row of cleaning rods parallel. Then hold the handle and insert the outer end of the cleaning rod back and forth into the gap of the fin plate. At this time, the heat exchanger body is in a flat state on the ground, that is, the side of the disassembled outer cover plate is facing up. Then use oxalic acid cleaner to clean the impurities in the gap of each layer of fin plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the embodiment of the utility model.

[0016] Figure 2 This is a schematic diagram of the inner structure after the outer sealing plate of an embodiment of the utility model is removed.

[0017] Figure 3 This is a schematic side sectional structure diagram of the outer sealing plate of an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the top view of the cleaning rod according to an embodiment of the present invention.

[0019] Figure 5 For the embodiment of the utility model Figure 3 A magnified schematic diagram of the structure in the middle.

[0020] In the figure: 1. Heat exchanger body; 11. Sealing end; 12. Fixing plate; 121. Plug-in slot; 13. Outer sealing plate; 131. Mounting assembly; 1311. Welding plate; 1312. Guide slot; 1313. Spring; 1314. Plug-in block; 1315. Guide rod; 132. Cleaning rod; 133. Damping shaft; 134. Storage slot; 14. Handle; 15. Partition; 16. Seal; 17. Fin plate. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 4 As shown, the utility model provides a plate-fin heat exchanger that is easy to clean impurities, including: a heat exchanger main body 1, the heat exchanger main body 1 includes sealing ends 11 on both sides, and a seal 16 is fixed on the inner side of the sealing end 11, and the upper and lower ends of the seal 16 are connected to the partition 15, and the fin plate 17 is connected between the seals 16, an outer sealing plate 13 is provided between the sealing ends 11, and the outer sealing plate 13 covers the outer side of the fin plate 17, and the upper and lower ends of the outer sealing plate 13 are connected to the fixed plate 12, the surface of the fixed plate 12 is provided with a plug-in groove 121, and the outer side of the plug-in groove 121 is plugged with an installation component 131, and the installation component 131 is connected to the upper and lower side edges of the outer sealing plate 13, the plug-in groove 121 is set as an L-shaped groove cavity structure, and the plug-in groove 121 is matched with the plug-in block 1314.

[0022] Specifically, the end seal 11, partition 15, seal 16 and fin plate 17 are configured as a fin plate heat exchanger structure in the existing known technical field, and the fin plate 17 is configured as a corrugated structure to increase the heat exchange area. At the same time, the gap between the corrugated fin plates 17 is larger than the outer diameter of the cleaning rod 132 mentioned below.

[0023] Specifically, recessed steps are provided between the inner edge of the fixing plate 12 and the upper and lower partitions 15 to facilitate the embedding of the outer sealing plate 13 .

[0024] like Figures 1 to 4In the embodiment, the outer wall of the outer sealing plate 13 is provided with a set of handles 14, and the handles 14 are configured as an arc-shaped bent rod structure. The inner wall of the outer sealing plate 13 is provided with a receiving groove 134, and the inner wall of the receiving groove 134 is hinged with a cleaning rod 132 through a damping shaft 133. The cleaning rods 132 are arranged in a row at equal distances on the inner wall of the outer sealing plate 13, and the length of the cleaning rods 132 is greater than the thickness of the heat exchanger body 1, and the outer wall of the cleaning rods 132 is provided with bristles. The mounting assembly 131 includes a brush welded to the outer sealing plate 13. A welding plate 1311 is provided at the edge of the plate 13, and a guide groove 1312 is provided on the inner side wall of the welding plate 1311, and a guide rod 1315 is provided inside the guide groove 1312, and a spring 1313 is sleeved on the outer side of the guide rod 1315. The mounting assembly 131 also includes a plug-in block 1314, and the plug-in block 1314 is set to an L-shaped structure, and the plug-in block 1314 is slidably connected to the guide groove 1312, and the guide rod 1315 slides through the plug-in block 1314.

[0025] As a preferred embodiment, the handle 14 is provided to facilitate the upward and downward movement of the outer sealing plate 13 during cleaning, thereby facilitating the operation of the cleaning rod 132 to clean the fin plate 17 .

[0026] Specifically, the spacing of a row of cleaning rods 132 inside the storage groove 134 matches the gap spacing of the fin plate 17, which is convenient for cleaning one layer of fin plates 17 at a time, and the cleaning rods 132 are arranged on the inner wall of the outer sealing plate 13, so that there is no need to carry cleaning tools and it is convenient to disassemble and clean at any time.

[0027] Specifically, the outer wall of the welding plate 1311 is provided with a limiting groove connected to the guide groove 1312, and a shift block (consistent with the bolt structure) is slidably connected in the limiting groove, and the head of the shift block slides on the outer wall surface of the welding plate 1311, and the inner end of the shift block is fixedly connected to the plug-in block 1314.

[0028] Specifically, an inclined chamfer is provided on the side of the plug-in block 1314 facing the plug-in slot 121, so that when plugging in, the chamfer can be used to squeeze the plug-in block 1314 upward using the notch of the plug-in slot 121 until the plug-in block 1314 is snapped into the plug-in slot 121, making installation easier.

[0029] When in use, the sliding blocks connected to the outer side of the welding plate are pushed upward and downward respectively, so that the plug-in block slides on the outside of the guide rod to squeeze the spring, thereby causing part of the plug-in block to disengage from the inside of the plug-in slot, and then the outer sealing plate is taken out as a whole to the outside, so that the entire plug-in block is disengaged from the plug-in slot, thereby achieving the effect of easy disassembly; when cleaning, first rotate the cleaning rod on the inner side of the disassembled outer sealing plate out of the storage slot, and at the same time keep a row of cleaning rods parallel, and then hold the handle to insert the outer end of the cleaning rod back and forth into the gap of the fin plate. At this time, the heat exchanger body is in a state of being flat on the ground, that is, one side of the disassembled outer sealing plate is facing upward, and then use oxalic acid cleaner to clean impurities in the gap of each layer of the fin plate.

[0030] The plate-fin heat exchanger of the utility model is easy to clean impurities and can effectively solve the problems of the existing plate-fin heat exchanger that the shell is inconvenient to disassemble and the impurities on the inner side of the fin are inconvenient to clean. It is realized on the basis of the existing technology of the plate-fin heat exchanger that is easy to clean impurities, and the shell of the heat exchanger is easy to disassemble and assemble, and the impurities on the internal fin are cleaned by using the disassembled parts of the heat exchanger, which is more convenient.

Claims

1. A plate-fin heat exchanger that is easy to clean impurities, comprising: A heat exchanger body (1), the heat exchanger body (1) includes sealed ends (11) on both sides, and a seal (16) is fixed on the inner side of the sealed ends (11), and the upper and lower ends of the seal (16) are connected to a partition (15), and a fin plate (17) is connected between the seals (16), characterized in that: an outer sealing plate (13) is provided between the sealed ends (11), and the outer sealing plate (13) covers the outer side of the fin plate (17), and the upper and lower ends of the outer sealing plate (13) are connected to a fixed plate (12), a plug-in groove (121) is provided on the surface of the fixed plate (12), and an installation component (131) is inserted into the outer side of the plug-in groove (121), and the installation component (131) is connected to the upper and lower side edges of the outer sealing plate (13).

2. A plate-fin heat exchanger that is easy to clean impurities according to claim 1, characterized in that: The outer wall of the outer sealing plate (13) is provided with a group of handles (14), and the handles (14) are configured as arc-shaped curved rod structures.

3. The plate-fin heat exchanger that is easy to clean impurities according to claim 1, characterized in that: The inner wall of the outer sealing plate (13) is provided with a receiving groove (134), and the inner wall of the receiving groove (134) is hingedly connected to a cleaning rod (132) via a damping shaft (133).

4. The plate-fin heat exchanger that is easy to clean impurities according to claim 3, characterized in that: The cleaning rods (132) are arranged in a row at equal intervals on the inner wall of the outer sealing plate (13), the length of the cleaning rods (132) is greater than the thickness of the heat exchanger body (1), and the outer wall of the cleaning rods (132) is provided with bristles.

5. The plate-fin heat exchanger that is easy to clean impurities according to claim 1, characterized in that: The mounting assembly (131) comprises a welding plate (1311) welded to the edge of the outer sealing plate (13), and a guide groove (1312) is provided on the inner side wall of the welding plate (1311), and a guide rod (1315) is provided inside the guide groove (1312), and a spring (1313) is sleeved on the outer side of the guide rod (1315).

6. The plate-fin heat exchanger that is easy to clean impurities according to claim 1, characterized in that: The mounting assembly (131) further includes a plug-in block (1314), and the plug-in block (1314) is configured as an L-shaped structure, and the plug-in block (1314) is slidably connected in the guide groove (1312), while the guide rod (1315) slides through the plug-in block (1314).

7. The plate-fin heat exchanger that is easy to clean impurities according to claim 1, characterized in that: The plug-in slot (121) is configured as an L-shaped slot cavity structure, and the plug-in slot (121) is matched and plugged with the plug-in block (1314).

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