Self-cleaning waste water heat exchanger

Abstract

The utility model relates to heat exchanger technical field, and disclose a kind of self-cleaning wastewater heat exchanger, including two supports, the inner wall of two supports is fixedly arranged with shell, the both sides of shell are fixedly arranged with first side cover and second side cover, the upper end inner wall of shell is fixedly arranged with heat exchange liquid pipe, the lower end of shell is provided with sediment structure, sediment structure includes the rectangular piece of shell lower end fixed setting, the lower end of rectangular piece is provided with receiving groove, the inner wall of receiving groove is fixedly arranged with limit piece, the lower end of limit piece is fixedly arranged with sealing washer, the lower end of both sides of limit piece is fixedly arranged with screw rod, the lower end of screw rod passes through dismantling plate and outer wall screw thread is provided with nut. The utility model discloses a kind of self-cleaning wastewater heat exchanger when dismantling plate is dismantled, can realize the cleaning of precipitated scale.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically a self-cleaning wastewater heat exchanger. Background Technology

[0002] A wastewater heat exchanger is a device used to recover heat energy from wastewater and transfer it to other fluids (such as chilled water, steam, or other process fluids), aiming to improve energy efficiency and reduce energy waste. It is widely used in industrial production processes, especially in chemical, metallurgical, food processing, pharmaceutical, and energy recovery industries.

[0003] The existing patent with publication number CN218864854U proposes a self-cleaning heat exchanger for ammonia-eating wastewater. The device is designed with a movable baffle. This baffle can not only form a serpentine flow channel to increase the flow path of the cold source, but also has the function of online scraping of dirt. The dirt is cleaned quickly and conveniently, saving time and effort, significantly improving work efficiency, ensuring efficient heat exchange of the heat exchange liquid tube, and ensuring the normal operation of production. It is worth promoting and using on a large scale.

[0004] When a horizontal heat exchanger heats water, impurities in the water will accumulate in an arc shape on the inner wall of the bottom of the shell. Over time, scale buildup will damage the inner wall of the heat exchanger shell and will also compromise the purity of the water source. Utility Model Content

[0005] The purpose of this utility model is to provide a self-cleaning wastewater heat exchanger to solve the problem that impurities in the water in existing heat exchangers will accumulate in an arc shape on the inner wall of the bottom of the shell, and long-term scale accumulation will damage the inner wall of the heat exchanger shell, while failing to guarantee the purity of the water source.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning wastewater heat exchanger, comprising two supports, a shell fixedly mounted on the inner wall of the two supports, a first side cover and a second side cover fixedly mounted on the two sides of the shell respectively, a heat exchange liquid pipe fixedly mounted on the upper inner wall of the shell, and a sedimentation structure mounted on the lower end of the shell. The sedimentation structure includes a rectangular member fixedly mounted on the lower end of the shell, a receiving groove opened at the lower end of the rectangular member, a limiting member fixedly mounted on the inner wall of the receiving groove, a sealing gasket fixedly mounted on the lower end of the limiting member, and screws fixedly mounted on both lower ends of the limiting member. The lower ends of the screws pass through a removal plate and a nut is threaded on the outer wall.

[0007] Preferably, a vertical plate is fixedly provided on one side of the inner wall of the housing, a scraper is provided on one side of the vertical plate, one end of the vertical plate passes through the scraper and a first nut is provided on the outer wall thread.

[0008] Preferably, the upper end face of the removal plate is on the same plane as the inner wall of the bottom end of the rectangular piece.

[0009] Preferably, a first water inlet pipe is fixedly provided at the upper end of the first side cover.

[0010] Preferably, a second water inlet pipe is fixedly provided on one side of the upper end of the shell.

[0011] Preferably, a drain pipe is fixedly provided on one side of the lower end of the rectangular component, and a sealing nut is provided on the outer wall thread of the drain pipe.

[0012] Preferably, rotating blocks are fixedly provided on both sides of the outer wall of the sealing nut.

[0013] Preferably, a U-shaped handle is fixedly provided on one side of the scraper.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1) By setting up a sedimentation structure, the sedimented scale flows into the upper surface of the removal plate. Once the scale is fixed and adhered, it will not be fixed and adhered to the inner wall of the shell. When the removal plate is removed later, a large amount of scale can be removed, thus speeding up the cleaning efficiency.

[0016] 2) By setting the scraper to be located on the inner wall of the housing, the scraper can be removed after the removal plate is removed. After removal, the scraper can be scraped and cleaned to remove the residual scale on the inner wall of the bottom of the housing, thereby improving the cleaning efficiency near the inner wall of the bottom of the housing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a self-cleaning wastewater heat exchanger according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of a partially disassembled structure in an embodiment of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the shell structure in an embodiment of this utility model;

[0020] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the vertical plate and scraper in an embodiment of this utility model.

[0022] In the diagram: 1. Bracket; 2. Shell; 3. First side cover; 4. Second side cover; 5. Heat exchanger pipe; 6. Sedimentation structure; 7. Rectangular component; 8. Removal plate; 9. Limiting component; 10. Storage tank; 11. Screw; 12. Nut; 13. Sealing gasket; 14. Vertical plate; 15. Scraper; 16. First nut; 17. First water inlet pipe; 18. Second water inlet pipe; 19. Drain pipe; 20. Sealing nut. Detailed Implementation

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Embodiment one

[0025] In combination Figures 1-5 A self-cleaning wastewater heat exchanger, comprising two supports 1, the inner wall of the two supports 1 is fixedly provided with a shell 2, the two sides of the shell 2 are fixedly provided with a first side cover 3 and a second side cover 4 respectively, the upper end inner wall of the shell 2 is fixedly provided with a heat exchange liquid pipe 5, the lower end of the shell 2 is provided with a sedimentation structure 6, the sedimentation structure 6 comprises a rectangular piece 7 fixedly arranged at the lower end of the shell 2, a receiving groove 10 is formed in the lower end of the rectangular piece 7, a limiting piece 9 is fixedly arranged on the inner wall of the receiving groove 10, a sealing gasket 13 is fixedly arranged at the lower end of the limiting piece 9, a screw rod 11 is fixedly arranged at the lower end of the two sides of the limiting piece 9, and the lower end of the screw rod 11 penetrates through a dismantling plate 8 and the outer wall of the screw rod 11 is threadedly provided with a nut 12.

[0026] In combination Figure 1 , Figure 4 , Figure 5 Further, the upper end surface of the dismantling plate 8 is on the same plane as the bottom end inner wall of the rectangular piece 7, the upper end of the first side cover 3 is fixedly provided with a first water inlet pipe 17, one side of the upper end of the shell 2 is fixedly provided with a second water inlet pipe 18, one side of the lower end of the rectangular piece 7 is fixedly provided with a blowdown pipe 19, the outer wall of the blowdown pipe 19 is threadedly provided with a closing nut 20, the outer wall of the closing nut 20 is fixedly provided with a rotating block on both sides, and one side of the scraper 15 is fixedly provided with a U-shaped handle.

[0027] Specifically, the first water inlet pipe 17 is used to add water source, the blowdown pipe 19 can discharge the water source in the shell 2 after being opened, the closing nut 20 is used to close the blowdown pipe 19, and the U-shaped handle is used to pull the scraper 15.

[0028] Embodiment two

[0029] In combination Figure 5 , and on the basis of embodiment one, further, one side of the inner wall of the shell 2 is fixedly provided with a vertical plate 14, the vertical plate 14 is provided with a scraper 15 on one side, and a first nut 16 is threadedly arranged on the outer wall of one end of the vertical plate 14 penetrating through the scraper 15.

[0030] Specifically, the vertical plate 14 is used to arrange a threaded rod, and the threaded rod penetrating through the scraper 15 cooperates with the first nut 16 to realize the fixed placement of the scraper 15.

[0031] In actual operation, when the water source is heated on the inner wall of the shell 2, after stopping operation, the water scale in the water source will sink into the inner wall of the rectangular piece 7. During the stoppage of use, the sinking water scale will not adhere to the inner wall of the shell 2, but will adhere to the upper end of the removal plate 8;

[0032] When cleaning operation is needed, the nut 12 is removed, so that the removal plate 8 is taken off, and the adhered water scale is taken out together for cleaning. After cleaning is completed, the first nut 16 is removed, and the U-shaped handle is pulled, so that the scraper 15 scrapes the remaining water scale on the inner wall of the shell 2. Without removing the first side cover 3 and the second side cover 4, the cleaning of the water scale can also be achieved.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning waste water heat exchanger comprising two supports (1), characterised in that: The inner wall of two supports (1) is fixedly provided with a shell (2), the two sides of the shell (2) are fixedly provided with a first side cover (3) and a second side cover (4), respectively, the upper end inner wall of the shell (2) is fixedly provided with a heat exchange liquid pipe (5), the lower end of the shell (2) is provided with a sediment structure (6), the sediment structure (6) comprises a rectangular piece (7) fixedly arranged at the lower end of the shell (2), the lower end of the rectangular piece (7) is provided with a receiving groove (10), the inner wall of the receiving groove (10) is fixedly provided with a limiting piece (9), the lower end of the limiting piece (9) is fixedly provided with a sealing gasket (13), the lower end of the limiting piece (9) is fixedly provided with a screw rod (11), the lower end of the screw rod (11) penetrates through a removal plate (8) and the outer wall of the screw rod (11) is screwedly provided with a nut (12).

2. A self-cleaning waste heat exchanger according to claim 1, wherein: The inner wall of the shell (2) is fixedly provided with a vertical plate (14) on one side, the vertical plate (14) is provided with a scraper (15) on one side, and one end of the vertical plate (14) penetrates through the scraper (15) and is screwedly provided with a first nut (16) on the outer wall.

3. The self-cleaning wastewater heat exchanger of claim 1, wherein: The upper end surface of the removal plate (8) is on the same plane as the bottom end inner wall of the rectangular piece (7).

4. The self-cleaning wastewater heat exchanger of claim 1, wherein: The upper end of the first side cover (3) is fixedly provided with a first water inlet pipe (17).

5. The self-cleaning wastewater heat exchanger of claim 1, wherein: The upper end of the shell (2) is fixedly provided with a second water inlet pipe (18) on one side.

6. The self-cleaning wastewater heat exchanger of claim 1, wherein: The lower end of the rectangular piece (7) is fixedly provided with a blowdown pipe (19) on one side, and the outer wall of the blowdown pipe (19) is screwedly provided with a closing nut (20).

7. A self-cleaning waste heat exchanger according to claim 6, wherein: The outer wall of the closing nut (20) is fixedly provided with a rotating block on both sides.

8. A self-cleaning waste heat exchanger according to claim 2, wherein: The scraper (15) is fixedly provided with a U-shaped handle on one side.

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