Plate heat exchanger with filter screen pipe

Abstract

The utility model relates to the technical field of plate heat exchangers, and discloses a plate heat exchanger with a filter screen pipe, which comprises a shell I. A medium inlet pipe and a medium outlet pipe are arranged on the front side of the shell I. Flanges are fixedly mounted on the outer sides of the medium inlet pipe and the medium outlet pipe. The inner wall of the medium inlet pipe and the inner wall of the medium outlet pipe are slidably connected with a first-stage coarse filter pipe, a sliding groove is formed in the outer edge of the first-stage coarse filter pipe, a clamping groove is formed in the inner side of the flange, and a spring is arranged on the inner wall of the sliding groove. Through cooperative use of clamping blocks and clamping grooves, after filter screens of a first-stage coarse filter pipe, a second-stage filter pipe and a third-stage fine filter pipe are blocked by impurities or incrustation, a pressing plate is pressed downwards, so that the pressing plate applies downward pressing force to a sliding plate, and at the moment, the sliding plate downwards extrudes a spring to generate deformation shrinkage, so that the filter screens of the first-stage coarse filter pipe, the second-stage filter pipe and the third-stage fine filter pipe are blocked by the impurities or the incrustation; and through cooperation between the limiting block and the limiting groove, sliding of the sliding plate can be limited, and the sliding plate slides downwards.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate heat exchanger technical field, concretely to a plate heat exchanger with filter screen pipe. BACKGROUND

[0002] Plate heat exchanger is by a series of have certain corrugated shape's metal sheet stack and form thin rectangle passageway between various sheets, and heat exchange is carried out through sheet.

[0003] The existing plate heat exchanger device mainly has the problem of not being capable of extracting and cleaning the filter screen pipe during use, and then when the filter screen pipe is blocked, the filtering efficiency of impurities is affected, and it is difficult to clean, and the existing plate heat exchanger device also has the problem of low filtering efficiency during use, and cannot filter impurities of different sizes layer by layer. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a plate heat exchanger with filter screen pipe, which has the advantages of facilitating cleaning of the filter screen pipe and improving the filtering efficiency of impurities, and solves the problems raised in the above background art.

[0005] The utility model provides following technical scheme: a plate heat exchanger with filter screen pipe, including the casing one, the front of casing one is provided with medium inlet pipe and medium inlet pipe, the outside fixed mounting of medium inlet pipe and medium inlet pipe is flange, the inner wall sliding connection of medium inlet pipe and medium inlet pipe is primary rough filter pipe, the outer edge of primary rough filter pipe is equipped with the sliding slot, the inside of flange is equipped with the clamping groove, the inner wall of sliding slot is provided with the spring, the extension end fixed mounting of spring is sliding plate, the outside fixed mounting of sliding plate is press plate, the top fixed mounting of sliding plate is clamping block, the both sides of the inner wall of sliding slot are equipped with the limiting slot, the inner wall sliding connection of limiting slot is limiting block, the inner wall of primary rough filter pipe is provided with secondary filter pipe, the inner wall of secondary filter pipe is provided with tertiary precision filter pipe, the inner wall fixed mounting of primary rough filter pipe, secondary filter pipe and tertiary precision filter pipe is connecting pipe.

[0006] As a preferred technical scheme of the utility model: the back of casing one is provided with heat exchange sheet group, the back of heat exchange sheet group is provided with casing two, the back fixed mounting of casing two is connecting block and connecting roller, the end away from casing two of connecting block and connecting roller is fixedly installed with auxiliary support plate, the bottom fixed mounting of auxiliary support plate is square plate.

[0007] As a preferred technical scheme of the utility model: the inner wall sliding connection of sliding plate in sliding slot, the both sides fixed mounting of sliding plate is limiting block.

[0008] As a preferred technical scheme of the utility model: the connecting rod is arranged between the shell one, the shell two and the auxiliary support plate, and the outer edge of the connecting rod is threadedly connected with the fastening bolt.

[0009] As a preferred technical scheme of the utility model: the shell two 2mm gap is arranged between the first rough filter pipe, the second filter pipe and the third precision filter pipe, the diameter of the clamping block is matched with the diameter of the clamping groove, and the clamping block is slidingly connected to the inner wall of the clamping groove.

[0010] As a preferred technical scheme of the utility model: the pressing plate protrudes from the outer side of the first rough filter pipe, and the pressing plate is slidingly connected to the outer side of the first rough filter pipe.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The plate heat exchanger with filter screen pipe is used in cooperation between the clamping block and the clamping groove, so that when the filter screen of the first rough filter pipe, the second filter pipe and the third precision filter pipe is blocked by impurities or scale, the pressing plate is pressed downward, the pressing plate exerts downward pressure on the sliding plate, the sliding plate is deformed and shrunk by the spring, the cooperation between the limiting block and the limiting groove limits the sliding of the sliding plate, the clamping block is separated from the inner wall of the clamping groove by the downward sliding of the sliding plate, the first rough filter pipe can be pulled out, the first rough filter pipe, the second filter pipe and the third precision filter pipe can be pulled out, the blocked part of the first rough filter pipe, the second filter pipe and the third precision filter pipe can be cleaned, and the filtering efficiency is improved.

[0013] 2. The plate heat exchanger with filter screen pipe is used in cooperation between the first rough filter pipe, the second filter pipe and the third precision filter pipe, so that the inner wall of the medium inlet pipe and the medium inlet and outlet pipe can be filtered in three stages, the liquid impurities and scale in the medium inlet pipe and the medium inlet and outlet pipe can be filtered layer by layer, the filtering efficiency is improved, the shell two 3mm gap is arranged between the first rough filter pipe, the second filter pipe and the third precision filter pipe, so that the vortex separation effect is formed, the impurity separation is strengthened, and the filter screen blockage is relieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a bottom view structure schematic view of the utility model;

[0016] Figure 3 It is a flange structure schematic view of the utility model;

[0017] Figure 4 It is aFigure 3 A magnified schematic diagram of the structure at point A;

[0018] Figure 5 This is a schematic diagram of the connecting pipe structure of this utility model.

[0019] In the diagram: 1. Shell 1; 2. Heat exchange plate assembly; 3. Shell 2; 4. Auxiliary support plate; 5. Square plate; 6. Connecting rod; 7. Fastening bolt; 8. Connecting block; 9. Connecting roller; 10. Medium inlet pipe; 11. Medium outlet pipe; 12. Flange; 13. Primary coarse filter pipe; 14. Slot; 15. Slide groove; 16. Spring; 17. Limiting groove; 18. Slide plate; 19. Limiting block; 20. Pressing plate; 21. Locking block; 22. Secondary filter pipe; 23. Tertiary fine filter pipe; 24. Connecting pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 A plate heat exchanger with a filter screen includes a shell 1. A medium inlet pipe 10 and a medium outlet pipe 11 are provided on the front side of the shell 1. A flange 12 is fixedly installed on the outer side of the medium inlet pipe 10 and the medium outlet pipe 11. A primary coarse filter pipe 13 is slidably connected to the inner wall of the medium inlet pipe 10 and the medium outlet pipe 11. A groove 15 is formed on the outer edge of the primary coarse filter pipe 13. A slot 14 is formed on the inner side of the flange 12. A spring 16 is provided on the inner wall of the groove 15. The extension end of the spring 16... A slide plate 18 is fixedly installed, a pressing plate 20 is fixedly installed on the outside of the slide plate 18, a locking block 21 is fixedly installed on the top of the slide plate 18, a limiting groove 17 is opened on both sides of the inner wall of the slide groove 15, a limiting block 19 is slidably connected to the inner wall of the limiting groove 17, a secondary filter pipe 22 is provided on the inner wall of the primary coarse filter pipe 13, a tertiary fine filter pipe 23 is provided on the inner wall of the secondary filter pipe 22, and a connecting pipe 24 is fixedly installed on the inner walls of the primary coarse filter pipe 13, the secondary filter pipe 22 and the tertiary fine filter pipe 23.

[0022] In the above structure, through the cooperation between the locking block 21 and the locking groove 14, when the filter screens of the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23 are clogged by impurities or scale, pressing down on the pressing plate 20 applies downward pressure to the sliding plate 18. At this time, the sliding plate 18 compresses the spring 16 downward, causing it to deform and contract. Through the cooperation between the limiting block 19 and the limiting groove 17, the sliding of the sliding plate 18 can be limited. As the sliding plate 18 slides downward, the locking block 21 separates from the inner wall of the locking groove 14. At this time, the primary coarse filter tube 13 can be pulled out, thereby removing the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23. This facilitates the cleaning of the clogged parts of the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23, thereby improving their filtration efficiency.

[0023] In a preferred embodiment: a heat exchange plate group 2 is provided on the back of the housing 1, a housing 2 3 is provided on the back of the heat exchange plate group 2, a connecting block 8 and a connecting roller 9 are fixedly installed on the back of the housing 2 3, an auxiliary support plate 4 is fixedly installed at the end of the connecting block 8 and the connecting roller 9 away from the housing 2 3, and a square plate 5 is fixedly installed at the bottom of the auxiliary support plate 4.

[0024] In the above structure, the connection block 8 and the connection roller 9 can be used to fix the housing 2 3 and the auxiliary support plate 4, so that the auxiliary support plate 4, the square plate 5, and the bottom of housing 1 and housing 2 3 can provide stable support for the device.

[0025] In a preferred embodiment: the slide plate 18 is slidably connected to the inner wall of the slide groove 15, and the limiting block 19 is fixedly installed on both sides of the slide plate 18;

[0026] In the above structure, the sliding of the slide plate 18 can be limited by the setting of the limiting block 19 and the limiting groove 17.

[0027] In a preferred embodiment: a connecting rod 6 is provided between housing 1, housing 2, and auxiliary support plate 4, and a fastening bolt 7 is threadedly connected to the outer edge of the connecting rod 6;

[0028] In the above structure, by setting the connecting rod 6 and the fastening bolt 7, and by rotating the fastening bolt 7, the gap between the first housing 1 and the second housing 3 can be reduced, so that the gap of the heat exchange plate group 2 is reduced synchronously.

[0029] In a preferred embodiment: a 3mm gap between the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23 is provided between the housings; the diameter of the locking block 21 is adapted to the diameter of the slot 14; and the locking block 21 is slidably connected to the inner wall of the slot 14.

[0030] In the above structure, the combined use of the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23 enables three-stage filtration of the inner walls of the media inlet pipe 10 and the media outlet pipe 11. This allows liquid impurities and scale flowing through the media inlet pipe 10 and the media outlet pipe 11 to be filtered layer by layer, improving filtration efficiency. At the same time, the 3mm gap between the shells of the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23 creates a vortex separation effect, which enhances impurity separation and alleviates filter clogging.

[0031] In a preferred embodiment: the pressing plate 20 protrudes from the outer side of the primary coarse filter tube 13, and the pressing plate 20 is slidably connected to the outer side of the primary coarse filter tube 13.

[0032] In the above structure, by setting up the pressing plate 20, the user can press the pressing plate 20 to apply downward pressure to the slide plate 18, thereby facilitating the extraction of the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23 for cleaning operations.

[0033] Working principle: When this device is needed, it is first used in conjunction with the locking block 21 and the locking groove 14. Then, when the filter screens of the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23 are clogged with impurities or scale, pressing down on the pressing plate 20 applies downward pressure to the sliding plate 18. At this time, the sliding plate 18 compresses the spring 16, causing it to deform and contract. Through the cooperation between the limiting block 19 and the limiting groove 17, the sliding of the sliding plate 18 is limited. The downward sliding of the sliding plate 18 causes the locking block 21 to separate from the inner wall of the locking groove 14, allowing the primary coarse filter tube 13 to be pulled outwards. This allows the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube to be removed. The tube 23 is pulled out, which facilitates the cleaning of the blocked parts of the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23, thereby improving their filtration efficiency. Secondly, by using the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23 in combination, the inner walls of the media inlet pipe 10 and the media outlet pipe 11 can be filtered in three stages, so that liquid impurities and scale flowing through the media inlet pipe 10 and the media outlet pipe 11 can be filtered layer by layer, improving the filtration efficiency. At the same time, the shell with a 23 mm gap between the primary coarse filter tube 13, the secondary filter tube 22, and the tertiary fine filter tube 23 can form a vortex separation effect, which can enhance the separation of impurities and alleviate the clogging of the filter screen.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plate heat exchanger with a filter screen, comprising a shell (1), characterized in that: The front of the housing (1) is provided with a medium inlet pipe (10) and a medium outlet pipe (11). A flange (12) is fixedly installed on the outside of the medium inlet pipe (10) and the medium outlet pipe (11). A primary coarse filter pipe (13) is slidably connected to the inner wall of the medium inlet pipe (10) and the medium outlet pipe (11). A groove (15) is opened on the outer edge of the primary coarse filter pipe (13). A slot (14) is opened on the inner side of the flange (12). A spring (16) is provided on the inner wall of the groove (15). A sliding plate (18) is fixedly installed on the extended end of the spring (16). A pressing plate (20) is fixedly installed on the outer side of the slide plate (18), and a locking block (21) is fixedly installed on the top of the slide plate (18). Limiting grooves (17) are opened on both sides of the inner wall of the slide groove (15). A limiting block (19) is slidably connected to the inner wall of the limiting groove (17). A secondary filter pipe (22) is provided on the inner wall of the primary coarse filter pipe (13). A tertiary fine filter pipe (23) is provided on the inner wall of the secondary filter pipe (22). A connecting pipe (24) is fixedly installed on the inner walls of the primary coarse filter pipe (13), the secondary filter pipe (22), and the tertiary fine filter pipe (23).

2. A plate heat exchanger with a filter screen according to claim 1, characterized in that: A heat exchange plate assembly (2) is provided on the back of the first shell (1), and a second shell (3) is provided on the back of the heat exchange plate assembly (2). A connecting block (8) and a connecting roller (9) are fixedly installed on the back of the second shell (3). An auxiliary support plate (4) is fixedly installed at the end of the connecting block (8) and the connecting roller (9) away from the second shell (3). A square plate (5) is fixedly installed at the bottom of the auxiliary support plate (4).

3. A plate heat exchanger with a filter screen according to claim 1, characterized in that: The slide plate (18) is slidably connected to the inner wall of the slide groove (15), and the limiting block (19) is fixedly installed on both sides of the slide plate (18).

4. A plate heat exchanger with a filter screen according to claim 1, characterized in that: A connecting rod (6) is provided between the first shell (1), the second shell (3), and the auxiliary support plate (4), and a fastening bolt (7) is threaded on the outer edge of the connecting rod (6).

5. A plate heat exchanger with a filter screen according to claim 1, characterized in that: A housing gap of 3 mm is provided between the primary coarse filter tube (13), the secondary filter tube (22), and the tertiary fine filter tube (23). The diameter of the locking block (21) is adapted to the diameter of the slot (14), and the locking block (21) is slidably connected to the inner wall of the slot (14).

6. A plate heat exchanger with a filter screen according to claim 1, characterized in that: The pressing plate (20) protrudes from the outside of the primary coarse filter tube (13), and the pressing plate (20) is slidably connected to the outside of the primary coarse filter tube (13).

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