Plate type heat exchanger unit with filter convenient to replace

Abstract

The utility model discloses a plate-type heat exchanger unit convenient to replace a filter, which relates to the field of filters for plate-type heat exchangers and comprises a filter cartridge, connecting pipes are symmetrically welded at two ends of the periphery of the filter cartridge, connecting flanges are integrally formed at one ends, far away from each other, of the two connecting pipes, and a filter component is mounted on the inner wall of the filter cartridge. Connecting mechanisms are distributed on the periphery of the top end of the filter cartridge and above the filter assembly, each connecting mechanism comprises a butt-joint ring integrally formed above the outer wall of the filter cartridge, the vertical section of each butt-joint ring is generally of a C-shaped structure, a butt-joint groove is formed in a top end plate of each butt-joint ring, and each butt-joint groove is communicated with the corresponding butt-joint ring. And two clamping grooves are formed in the inner circumference of the butt joint ring. Compared with the prior art, the filter has the advantages that the connecting mechanism is arranged, the connecting and mounting of the connecting mechanism are more stable compared with the connecting mode in the prior art, and the connecting force is firmer, so that the filter element in the filter is convenient to replace and remount, and the dismounting and mounting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of filter for plate heat exchanger, specifically to a plate heat exchanger unit convenient to replace filter. BACKGROUND

[0002] Plate heat exchanger is by a series of have certain corrugated shape metal sheet stack and form a kind of high-efficiency heat exchanger, various sheet form thin rectangular channel, pass through sheet and carry out heat exchange, plate heat exchanger is liquid-liquid, liquid-vapor and carries out the ideal equipment of heat exchange.

[0003] In prior art, filter is generally installed at the inlet end of plate heat exchanger, filters impurities in fluid medium, with the increase of filter service time, filter clogging problem appears, at this moment, filter or filter layer in filter core needs to be replaced, and the existing replacement mode needs relatively complex disassembly, and in installation, reverse repeated disassembly process is also needed, to realize installation effect, it is relatively inconvenient. UTILITY MODEL CONTENTS

[0004] The utility model discloses a plate heat exchanger unit convenient to replace filter.

[0005] To achieve the above object, the utility model provides the following technical scheme: a plate heat exchanger unit convenient to replace filter, including filter cartridge, the outer periphery both ends of filter cartridge are symmetrically welded with connecting pipe, and the one end of two connecting pipes is integrally formed with connecting flange, and the inner wall of filter cartridge is installed with filter assembly, and the top outer periphery of filter cartridge and the top of filter assembly are distributed with connecting mechanism, the connecting mechanism includes the butt joint ring integrally formed on the top of the outer wall of filter cartridge, the vertical section of butt joint ring is generally " C " type structure, the top plate of butt joint ring is provided with butt joint groove, the inner periphery of butt joint ring is provided with two clamping grooves, and the inner chamber of butt joint groove is connected with the inner chamber of one end of clamping groove.

[0006] As the further scheme of the utility model: the connecting mechanism further includes the connecting cover located at the top end of filter cartridge, the outer periphery bottom end of connecting cover is integrally formed with two symmetrically arranged clamping blocks, the cross section of clamping block is consistent with the cross section of butt joint groove, and the top of connecting cover is integrally formed with handle;

[0007] The top plate of butt joint ring is provided with annular groove recessed downward, and the outer periphery bottom end of connecting cover is accommodated in the annular groove.

[0008] As a further scheme of the utility model: the filter assembly includes filter core inserted in the inner wall of the filter drum, a baffle is welded on the side wall of the filter core, the bottom end of the baffle is not in contact with the inner wall bottom end of the filter core, two through holes are arranged in the filter core, two connecting pipes are aligned with the two through holes, and a filter layer is embedded and filled in the filter core.

[0009] As a further scheme of the utility model: a downward recessed screw hole is arranged at the top center of the baffle, a butt joint round hole is arranged at the top of the connecting cover, the butt joint round hole is aligned with the screw hole in the up-down direction, a locking bolt is arranged at the top of the connecting cover and is screwed with the screw hole, and a hexagonal hole is arranged at the center of the top end plate of the locking bolt.

[0010] As a further scheme of the utility model: outward protruding limiting blocks are integrally formed at the two ends of the outer periphery of the filter core, limiting grooves for accommodating the limiting blocks are arranged in the inner wall of the filter drum, and the top of the limiting groove is in an open structure.

[0011] As a further scheme of the utility model: a pressure receiving surface is integrally formed at the top end of the inner wall of the clamping groove, and an extrusion surface is integrally formed at the top of the clamping block.

[0012] Compared with the prior art, the utility model has the beneficial effects that: 1, by setting up the connecting mechanism, the connecting installation of the connecting mechanism is relatively stable compared with the connecting mode of the prior art, and the connecting force is relatively firm, so that the replacement and reinstallation of the filter core in the filter are facilitated, and the dismounting and installation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is an internal structure schematic view of the utility model;

[0015] Figure 3 It is an installation schematic view of the filtering mechanism of the utility model;

[0016] Figure 4 It is an abutting schematic view of the clamping block and the clamping groove of the utility model. In the drawing: 1, filter drum; 2, connecting pipe; 3, connecting flange; 4, butt joint ring; 5, butt joint groove; 6, connecting cover; 7, handle; 8, clamping block; 9, filter core; 10, through hole; 11, baffle; 12, screw hole; 13, locking bolt; 14, limiting block; 15, limiting groove; 16, clamping groove; 17, pressure receiving surface; 18, extrusion surface. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0018] Please refer to Figures 1-4 In the embodiments of the present application, a plate heat exchanger unit convenient for replacing filters comprises a filter cylinder 1, two connecting pipes 2 are symmetrically welded at the two ends of the outer periphery of the filter cylinder 1, one end of each of the two connecting pipes 2 is integrally formed with a connecting flange 3, a filter assembly is installed on the inner wall of the filter cylinder 1, a connecting mechanism is distributed on the top outer periphery of the filter cylinder 1 and above the filter assembly, the connecting mechanism comprises a butt joint ring 4 integrally formed above the outer wall of the filter cylinder 1, the vertical section of the butt joint ring 4 is generally in a "C" type structure, a butt joint groove 5 is formed on the top end plate of the butt joint ring 4, two clamping grooves 16 are formed on the inner periphery of the butt joint ring 4, and the inner cavity of the butt joint groove 5 is in communication with one end of the inner cavity of the clamping groove 16.

[0019] In the embodiments of the present application: first, a connecting flange 3 is connected to the inlet end flange of the plate heat exchanger by using a bolt and a nut, then the fluid enters the device before entering the plate heat exchanger, the impurities contained in the fluid are filtered by the filter layer in the filter assembly, after a long time of use, the upper connecting mechanism is separated from the lower connecting mechanism by rotating the upper connecting mechanism, then the upper connecting mechanism drives the filter mechanism to separate from the filter cylinder 1 by lifting the upper connecting mechanism, after the separation, the filter layer (such as an activated carbon layer) can be replaced by separating the upper connecting mechanism from the filter mechanism, after the replacement is completed, the upper connecting mechanism is connected to the filter mechanism again, after the connection is completed, the filter mechanism is inserted into the filter cylinder 1 again by the upper connecting mechanism, after the insertion is completed, the upper connecting mechanism is rotated again to realize the clamping of the upper connecting mechanism and the lower cover mechanism, and the relatively convenient installation and replacement can be realized.

[0020] Please refer to Figure 1 , Figure 2 , Figure 3 And Figure 4 The connecting mechanism further comprises a connecting cover 6 located at the top end of the filter cylinder 1, two symmetrically arranged clamping blocks 8 are integrally formed at the bottom end of the outer periphery of the connecting cover 6, the cross section of the clamping block 8 matches the cross section of the butt joint groove 5, a handle 7 is integrally formed at the top end of the connecting cover 6; a downwardly recessed annular groove is formed on the top end plate of the butt joint ring 4, the annular groove is used for accommodating the bottom end of the outer periphery of the connecting cover 6, a pressure receiving surface 17 is integrally formed at the top end of the inner wall of the clamping groove 16, and an extrusion surface 18 is integrally formed at the top of the clamping block 8.

[0021] In the embodiment, when the upper part connecting mechanism is disassembled, the handle 7 is held by hand, and the connecting cover 6 is driven to rotate by the handle 7. When the connecting cover 6 rotates, the clamping block 8 rotates in the clamping groove 16 until the clamping block 8 rotates to the position directly below the butt joint groove 5. At this time, the handle 7 can be pulled upward to drive the connecting cover 6 to move upward. The upward moving connecting cover 6 drives the filter mechanism to move out of the filter cylinder 1.

[0022] After the filter layer is replaced, the filter mechanism is inserted into the inner cavity of the filter cylinder 1. The clamping block 8 is aligned with the butt joint groove 5 in the upward and downward direction, and is lowered until the clamping block 8 passes through the butt joint groove 5 and enters the inner wall of the clamping groove 16. Then, the handle 7 is reversely rotated, the connecting cover 6 is reversely rotated by the handle 7, and the two clamping blocks 8 are rotated in the clamping groove 16. In this process, the pressing surface 18 and the pressure receiving surface 17 gradually approach each other. Because the top of the pressing surface 18 is fixedly installed with a rubber layer arranged along the pressing surface 18 by adhesive glue, the rubber layer is deformed by being pressed during the rotating process, thereby achieving the installation and fixation of the connecting cover 6.

[0023] Please refer to Figure 2 and Figure 3 , the filter assembly includes a filter core 9 inserted into the inner wall of the filter cylinder 1. A partition plate 11 is welded on the side wall of the filter core 9. The bottom end of the partition plate 11 is not in contact with the inner wall bottom end of the filter core 9. Two through holes 10 are formed in the inside of the filter core 9, and the two through holes 10 are aligned with the two connecting pipes 2. The inside of the filter core 9 is filled with a filter layer. A downwardly recessed screw hole 12 is formed at the top center of the partition plate 11. A butt joint circular hole is formed at the top of the connecting cover 6, and the butt joint circular hole is aligned with the screw hole 12 in the upward and downward direction. A locking bolt 13 is arranged above the connecting cover 6 and penetrates the butt joint circular hole and is screwed with the screw hole 12. A hexagonal hole is formed at the center of the top end plate of the locking bolt 13. Limiting blocks 14 are integrally formed at the outer periphery of both ends of the filter core 9 and protrude outward. Limiting grooves 15 are formed in the inner wall of the filter cylinder 1 to accommodate the limiting blocks 14. The top of the limiting groove 15 is in an open structure.

[0024] In the embodiment, during the upward movement of the connecting cover 6, the connecting cover 6 drives the partition plate 11 to move upward by the locking bolt 13. The upward moving partition plate 11 drives the filter core 9 to move upward. The filter core 9 drives the limiting blocks 14 to slide upward on the inner wall of the limiting groove 15 until the filter core 9 is completely disassembled. After the filter core 9 is disassembled, a hexagonal wrench is connected with the hexagonal hole and rotated to disassemble the locking bolt 13. At this time, the connecting cover 6 and the partition plate 11 can be isolated. At this time, the filter layer can be poured out, and the inner cavity of the filter core 9 can be cleaned. After cleaning, new filter layer can be filled in.

[0025] After the filter core 9 filled with new filter layer is put into the inner wall of the filter cylinder 1, the limiting block 14 and the limiting groove 15 need to be aligned in the up-down direction, then the filter core 9 is put in, after the filter core 9 is placed, the connecting cover 6 is covered on the top end of the filter core 9 until the connecting cover 6 is installed, finally the locking bolt 13 is fixed by using a hex wrench to complete the installation;

[0026] It should be noted that the inner wall of the through hole 10 should be welded with a porous intercepting metal mesh to avoid the problem of filter layer escaping with the fluid medium.

[0027] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A plate heat exchanger unit facilitating filter replacement, comprising a filter cartridge (1), symmetrical welding of connecting pipes (2) is carried out at both ends of the outer periphery of the filter cartridge (1), and the ends of the two connecting pipes (2) away from each other are integrally formed with connecting flanges (3), characterized in that, The inner wall of the filter cartridge (1) is provided with a filter assembly, the top end of the outer wall of the filter cartridge (1) and the upper part of the filter assembly are provided with a connecting mechanism, the connecting mechanism comprises a docking ring (4) integrally formed on the upper part of the outer wall of the filter cartridge (1), the vertical section of the docking ring (4) is generally in the shape of "C", a docking groove (5) is formed in the top end plate of the docking ring (4), two clamping grooves (16) are formed in the inner wall of the docking ring (4), and the inner cavity of the docking groove (5) is in communication with one end of the inner cavity of the clamping groove (16).

2. The plate heat exchanger package of claim 1, wherein, The connecting mechanism further comprises a connecting cover (6) located at the top end of the filter cartridge (1), the outer wall of the connecting cover (6) is integrally provided with two symmetrically arranged clamping blocks (8) at the bottom end, the cross section of the clamping block (8) is matched with the cross section of the docking groove (5), and the top end of the connecting cover (6) is integrally provided with a handle (7). The top end plate of the docking ring (4) is provided with a downwardly recessed annular groove, which is used for accommodating the outer wall of the connecting cover (6).

3. The plate heat exchanger package of claim 2, wherein, The filter assembly comprises a filter core (9) inserted into the inner wall of the filter cartridge (1), a partition plate (11) welded on the side wall of the filter core (9), the bottom end of the partition plate (11) is not in contact with the inner wall of the filter core (9), two through holes (10) are formed in the filter core (9), the two through holes (10) are aligned with the two connecting pipes (2), and the filter core (9) is filled with a filter layer.

4. The plate heat exchanger package of claim 3, wherein, A downwardly recessed threaded hole (12) is formed at the top center of the partition plate (11), a docking circular hole is formed in the top of the connecting cover (6), the docking circular hole is aligned with the threaded hole (12) in the up-down direction, a locking bolt (13) penetrating through the docking circular hole and threadedly connected with the threaded hole (12) is arranged above the connecting cover (6), and a hexagonal hole is formed in the top end plate of the locking bolt (13).

5. A plate heat exchanger package according to claim 4, c h a r a c t e r i z e d in that The outer wall of the filter core (9) is integrally provided with outwardly protruding limiting blocks (14) at both ends, the inner wall of the filter cartridge (1) is provided with limiting grooves (15) for accommodating the limiting blocks (14), and the top part of the limiting groove (15) is in an open structure.

6. The plate heat exchanger package of claim 3, wherein, The inner wall of the clamping groove (16) is integrally provided with a pressure receiving surface (17) at the top end, and the top of the clamping block (8) is integrally provided with an extrusion surface (18).

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