Water scale filtering structure

Abstract

The utility model discloses an incrustation scale filtering structure, which relates to the technical field of incrustation scale filtering devices and comprises a shell assembly, a filter element and a wall scraping assembly, wherein the shell assembly consists of a filter cartridge shell, a water outlet, a polygonal butt joint block, a bottom cover shell, a drain outlet, a backwashing water inlet and a filter water inlet; and a channel formed by the backwashing water inlet and the drain outlet is used for realizing backwashing operation on filtered impurities. Through the arrangement of the shell assembly with the backwashing water inlet and the drain outlet and the wall scraping assembly, backwashing operation on the filter element can be realized, and meanwhile, water flow entering the filter cartridge shell through the backwashing water inlet impacts the water wheel blades, so that the water wheel blades drive the inner scraping plate, the rotating ring seat and the outer scraping plate to rotate integrally; therefore, the outer side surface of the filter element main body and the side surface of the inner wall of the filter cartridge shell are scraped, adhered impurities are scraped and taken away by flowing water flow, and the backwashing effect is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of scale filtration devices, specifically a scale filtration structure. Background Technology

[0002] Scale purifiers (also known as scale processors or descaling equipment) are mainly used to remove or reduce calcium and magnesium ions in water, preventing scale from depositing in pipes, water heaters, boilers, and other equipment. Scale inhibitor filter cartridges are filter cartridges used in water treatment equipment (such as water purifiers and reverse osmosis pure water machines). Their main function is to prevent minerals such as calcium and magnesium in the water from forming scale (such as calcium carbonate and magnesium carbonate precipitates) under high temperature or high pressure. They inhibit scale formation through physical or chemical methods, thereby extending the service life of the equipment and improving water quality.

[0003] The scale inhibition mechanism of scale inhibitor filter elements is as follows:

[0004] Physical scale inhibition: It prevents the formation of solid precipitates by adsorbing or interfering with the crystallization of calcium and magnesium ions through filter materials (such as nano whiskers and microporous structures).

[0005] Chemical scale inhibition: Add food-grade scale inhibitors (such as polyphosphates and phosphite crystals) to combine with calcium and magnesium ions to form soluble complexes and prevent scale formation;

[0006] Ion exchange: Some filter cartridges contain ion exchange resin, which reduces water hardness by replacing calcium and magnesium ions (e.g., sodium ions).

[0007] During the use of scale inhibitor filter cartridges, physical scale inhibitors, chemical scale inhibitors, and ion exchange scale inhibitor filter cartridges all need to be replaced regularly. Physical scale inhibitor filter cartridges can also be disassembled and cleaned periodically during their replacement cycle to maintain good filtration performance. Based on this, in order to achieve backwashing of physical scale inhibitor filter cartridges to replace the periodic disassembly and cleaning operation and improve ease of use, a scale filtration structure is provided. Utility Model Content

[0008] The purpose of this utility model is to provide a scale filtration structure in order to solve the problems mentioned above.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a scale filtration structure, comprising an outer shell assembly consisting of a filter cylinder shell, a water outlet, a polygonal docking block, and a bottom cover shell, and a filter element. The water outlet is fixed to the top of the filter cylinder shell and extends into the interior of the filter cylinder shell. The bottom cover shell is threaded to the bottom of the filter cylinder shell. The filter element includes a filter element body and a polygonal docking groove, wherein the polygonal docking groove is formed in the middle of the top of the polygonal docking groove.

[0010] The outlet is located on the outside of the filter cartridge shell and has a polygonal docking block formed thereon. The filter element body is distributed on the inside of the filter cartridge shell and is engaged with the polygonal docking block through a polygonal docking groove.

[0011] A backwash inlet and a filter inlet are fixed on one side of the filter housing. The backwash inlet and the filter inlet are vertically distributed and communicate with the inner cavity of the filter housing. The side of the backwash inlet and the filter inlet away from the filter housing is connected to an external pipeline through a three-way valve. A drain outlet is fixed at the bottom of the bottom cover.

[0012] The channel consisting of the filter inlet, filter element body, and outlet is used to filter impurities in the water.

[0013] The channel formed by the backwash inlet, the gap between the filter cartridge and the filter element body, the bottom cover, and the drain outlet is used to achieve the backwashing operation of the filtered impurities.

[0014] The bottom cover is provided with a wall scraping assembly extending into the filter cartridge shell. The wall scraping assembly is used to scrape the inner wall of the filter cartridge shell and the outer wall of the filter element body.

[0015] As a further embodiment of this utility model: the wall scraping assembly includes an I-shaped base, a fixed frame, a rotating ring base, an outer scraper, and an inner scraper;

[0016] The I-shaped bases are distributed inside the bottom cover, and multiple fixing frames are provided. The multiple fixing frames are fixed between the bottom of the I-shaped base and the inner wall side of the bottom cover to provide support for the I-shaped base.

[0017] The rotating ring seat is rotatably connected to the outside of the column of the I-shaped seat. The outer scraper and inner scraper are fixed to the top of the rotating ring seat and extend into the interior of the I-shaped seat. The outer scraper is in contact with the inner wall side of the I-shaped seat, and the inner scraper is in contact with the outer wall side of the filter element body. The circumferential rotation of the outer scraper and inner scraper is used to scrape the inner wall side of the I-shaped seat and the outer wall side of the filter element body.

[0018] As a further embodiment of this utility model: multiple outer scrapers and inner scrapers are evenly arranged along the circumferential direction, and the outer scrapers and inner scrapers do not contact each other.

[0019] As a further improvement of this utility model: the wall scraping assembly also includes water turbine blades;

[0020] The water turbine blades are fixed to the top outer side of multiple inner scrapers, and the water turbine blades are aligned with the port of the backwash inlet. The water flow flowing in through the backwash inlet forms an impact deflection force on the water turbine blades, which is used to provide power for the rotation of the inner and outer scrapers.

[0021] As a further improvement of this utility model: the number of outer blades of the water turbine blades is greater than the number of inner and outer scrapers, and the bottom horizontal height of the water turbine blades is greater than the horizontal height of the filter inlet port.

[0022] As a further improvement of this utility model: the top of the I-shaped seat is tightly fitted to the bottom of the filter element body, and sealing elements are provided at the connection between the filter element body and the water outlet, the water outlet, the sewage outlet, the connection between the three-way valve and the external pipeline, and the threaded connection between the bottom cover and the filter cylinder shell.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] By setting up an outer shell assembly with a backwash inlet and a drain outlet, as well as a wall scraping assembly, the backwashing operation of the filter element can be realized. At the same time, the water flow entering the filter cartridge shell through the backwash inlet impacts the water wheel blades, causing the water wheel blades to drive the inner scraper, rotating ring seat, and outer scraper to rotate as a whole. This achieves wall scraping on the outer surface of the filter element body and the inner wall of the filter cartridge shell, scraping off the adhering impurities and carrying them away with the flowing water, further improving the backwashing effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0027] Figure 3 This is a cross-sectional exploded view of the present invention;

[0028] Figure 4 This is a structural distribution diagram of the rotating ring seat, outer scraper, inner scraper, and water turbine blades of this utility model.

[0029] In the diagram: 1. Outer shell assembly; 101. Filter cartridge shell; 102. Outlet; 103. Polygonal docking block; 104. Bottom cover shell; 105. Drain outlet; 106. Backwash inlet; 107. Filter inlet; 108. Three-way valve; 2. Filter element; 201. Filter element body; 202. Polygonal docking groove; 3. Scraper assembly; 301. I-shaped seat; 302. Fixing frame; 303. Rotating ring seat; 304. Outer scraper; 305. Inner scraper; 306. Water impeller blades. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-4 In this embodiment of the utility model, a scale filtration structure includes an outer shell assembly 1 consisting of a filter cylinder shell 101, a water outlet 102, a polygonal docking block 103, and a bottom cover shell 104, as well as a filter core 2. The water outlet 102 is fixed to the top of the filter cylinder shell 101 and extends into the interior of the filter cylinder shell 101. The bottom cover shell 104 is threaded to the bottom of the filter cylinder shell 101. The filter core 2 includes a filter core body 201 and a polygonal docking groove 202. The polygonal docking groove 202 is formed in the middle of the top of the polygonal docking groove 202.

[0032] The outlet 102 is located on the outside of the filter housing 101 and has a polygonal docking block 103 formed thereon. The filter element body 201 is distributed on the inside of the filter housing 101 and is engaged with the polygonal docking block 103 through the polygonal docking groove 202.

[0033] A backwash inlet 106 and a filter inlet 107 are fixed on one side of the filter housing 101. The backwash inlet 106 and the filter inlet 107 are vertically distributed and communicate with the inner cavity of the filter housing 101. The side of the backwash inlet 106 and the filter inlet 107 away from the filter housing 101 is connected to an external pipeline through a three-way valve 108. A drain outlet 105 is fixed at the bottom of the bottom cover 104.

[0034] The channel consisting of the filter inlet 107, the filter element body 201, and the outlet 102 is used to filter impurities in the water.

[0035] The channel formed by the backwash inlet 106, the gap between the filter cartridge shell 101 and the filter element body 201, the bottom cover 104, and the drain outlet 105 is used to realize the backwashing operation of the filtered impurities.

[0036] The bottom cover 104 is provided with a wall scraping assembly 3 extending into the filter cartridge 101. The wall scraping assembly 3 is used to scrape the inner wall of the filter cartridge 101 and the outer wall of the filter element body 201.

[0037] The wall scraping assembly 3 includes an I-shaped base 301, a fixed frame 302, a rotating ring seat 303, an outer scraper 304, an inner scraper 305, and a water turbine blade 306;

[0038] The I-shaped base 301 is distributed inside the bottom cover 104. Multiple fixing brackets 302 are provided. The multiple fixing brackets 302 are fixed between the bottom of the I-shaped base 301 and the inner wall side of the bottom cover 104 to provide support for the I-shaped base 301.

[0039] The rotating ring seat 303 is rotatably connected to the outside of the column of the I-shaped seat 301. The outer scraper 304 and the inner scraper 305 are fixed to the top of the rotating ring seat 303 and extend into the interior of the I-shaped seat 301. The outer scraper 304 is in contact with the inner wall side of the I-shaped seat 301, and the inner scraper 305 is in contact with the outer wall side of the filter element body 201. The circumferential rotation of the outer scraper 304 and the inner scraper 305 is used to achieve the scraping operation on the inner wall side of the I-shaped seat 301 and the outer wall side of the filter element body 201. Multiple outer scrapers 304 and inner scrapers 305 are evenly arranged along the circumferential direction, and the outer scraper 304 and the inner scraper 305 do not contact each other.

[0040] The water turbine blades 306 are fixed to the top outer side of multiple inner scrapers 305, and the water turbine blades 306 are aligned with the port of the backwash inlet 106. The water flow flowing in through the backwash inlet 106 forms an impact deflection force on the water turbine blades 306, which is used to provide power for the rotation of the inner scrapers 305 and the outer scrapers 304.

[0041] In this embodiment, it should be noted that when this scale filter is in use, the inlet of the three-way valve 108 is connected to the external inlet pipe, the outlet 102 is connected to the outlet pipe, and the drain outlet 105 is connected to the drain pipe.

[0042] It has two working modes:

[0043] The first mode is filtration mode. In this mode, the three-way valve 108 is adjusted to be in a state where the external water inlet pipe is connected to the filter inlet 107, the outlet 102 is connected to the outlet pipe, and the drain outlet 105 is disconnected from the drain pipe (it should be noted that the connection and disconnection of the outlet 102 and the drain outlet 105 can be controlled by the corresponding valves). At this time, the water flows into the filter cartridge 101 along the filter inlet 107, and then is filtered through the filter element body 201 (the filter element body 201 is a common physical scale inhibitor filter element on the market), and then discharged through the outlet 102.

[0044] The second mode is backwashing. The three-way valve 108 is adjusted so that the external inlet pipe is connected to the backwash inlet 106, the outlet 102 is disconnected from the outlet pipe, and the drain outlet 105 is connected to the drain pipe. In this mode, water flows into the filter housing 101 through the backwash inlet 106, then flows downwards and is discharged through the drain outlet 105. This washes away the impurities filtered by the filter element body 201. Simultaneously, the water flow impacts the water impeller blades 306 as it enters the filter housing 101, causing them to deflect. The water impeller blades 306 drive the inner scraper 305, rotating ring seat 303, and outer scraper 304 to rotate as a whole. The rotating inner scraper 305 scrapes the outer surface of the filter element body 201, while the rotating outer scraper 304 scrapes the inner side of the filter housing 101. This scrapes off the adhering impurities, allowing them to be carried away by the flowing water, further improving the backwashing effect.

[0045] Please refer to this carefully. Figures 2-4 The number of outer blades of water turbine blade 306 is greater than the number of inner scraper 305 and outer scraper 304, and the bottom horizontal height of water turbine blade 306 is greater than the horizontal height of filter inlet 107.

[0046] In this embodiment: During water filtration, the water flow entering the filter housing 101 through the filter inlet 107 will not impact the water wheel blades 306. As a result, the inner scraper 305, outer scraper 304, rotating ring seat 303, and water wheel blades 306 will remain stationary most of the time, and will only rotate at a low speed with the water flow in a few cases. This can avoid excessive wear on the filter element body 201 caused by the long-term rotation of the inner scraper 305.

[0047] When the water flow entering through the backwash inlet 106 impacts the numerous blades on the outer side of the turbine blades 306, the turbine blades 306 can generate a faster rotation speed, thereby improving the wall scraping efficiency and effect.

[0048] Please refer to this carefully. Figures 2-4 The top of the I-shaped base 301 fits tightly against the bottom of the filter element body 201. Sealing elements are provided at the connection between the filter element body 201 and the outlet 102, the outlet 102, the drain outlet 105, the connection between the three-way valve 108 and the external pipeline, and the threaded connection between the bottom cover 104 and the filter cartridge 101.

[0049] In this embodiment: the I-shaped seat 301 can provide compression and support for the filter element body 201, and the filter element body 201 can remain stationary under the cooperation of the polygonal docking groove 202 and the polygonal docking block 103, so that the filter element body 201 can maintain a stable state.

[0050] Seals ensure a good seal for the entire device and its connection to external piping.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A scale filtration structure, comprising an outer shell assembly (1) consisting of a filter housing (101), an outlet (102), a polygonal connecting block (103), and a bottom cover (104), and a filter element (2), wherein the outlet (102) is fixed to the top of the filter housing (101) and extends into the interior of the filter housing (101), and the bottom cover (104) is threadedly connected to the bottom of the filter housing (101), characterized in that, The filter element (2) includes a filter element body (201) and a polygonal docking groove (202), wherein the polygonal docking groove (202) is formed in the middle of the top of the polygonal docking groove (202); The outlet (102) is located on the outside of the filter housing (101) and has a polygonal docking block (103) formed thereon. The filter element body (201) is distributed on the inside of the filter housing (101) and is engaged with the polygonal docking block (103) through the polygonal docking groove (202). A backwash inlet (106) and a filter inlet (107) are fixed on one side of the filter housing (101). The backwash inlet (106) and the filter inlet (107) are vertically distributed and communicate with the inner cavity of the filter housing (101). The side of the backwash inlet (106) and the filter inlet (107) away from the filter housing (101) is connected to an external pipeline through a three-way valve (108). A drain outlet (105) is fixed at the bottom of the bottom cover (104). The channel consisting of the filter inlet (107), the filter element body (201), and the outlet (102) is used to filter impurities in the water. The channel formed by the backwash inlet (106), the gap between the filter cartridge shell (101) and the filter element body (201), the bottom cover shell (104), and the drain outlet (105) is used to realize the backwashing operation of the filtered impurities. The bottom cover (104) is provided with a wall scraping assembly (3) extending into the filter cartridge (101). The wall scraping assembly (3) is used to scrape the inner wall of the filter cartridge (101) and the outer wall of the filter element body (201).

2. The scale filtration structure according to claim 1, characterized in that, The wall scraping assembly (3) includes an I-shaped seat (301), a fixed frame (302), a rotating ring seat (303), an outer scraper (304), and an inner scraper (305); The I-shaped base (301) is distributed inside the bottom cover (104), and multiple fixing frames (302) are provided. The multiple fixing frames (302) are fixed between the bottom of the I-shaped base (301) and the inner wall side of the bottom cover (104) to provide support for the I-shaped base (301). The rotating ring seat (303) is rotatably connected to the outside of the column of the I-shaped seat (301). The outer scraper (304) and inner scraper (305) are fixed to the top of the rotating ring seat (303) and extend into the interior of the I-shaped seat (301). The outer scraper (304) is in contact with the inner wall side of the I-shaped seat (301), and the inner scraper (305) is in contact with the outer wall side of the filter element body (201). The circumferential rotation of the outer scraper (304) and inner scraper (305) is used to realize the scraping operation of the inner wall side of the I-shaped seat (301) and the outer wall side of the filter element body (201).

3. The scale filtration structure according to claim 2, characterized in that, The outer scraper (304) and inner scraper (305) are evenly arranged in a plurality of them along the circumferential direction, and the outer scraper (304) and inner scraper (305) do not contact each other.

4. The scale filtration structure according to claim 3, characterized in that, The wall scraping assembly (3) also includes water turbine blades (306); The water turbine blade (306) is fixed to the top of the outer side of multiple inner scrapers (305), and the water turbine blade (306) is aligned with the port of the backwash inlet (106). The water flow flowing in through the backwash inlet (106) forms an impact deflection force on the water turbine blade (306), which is used to provide power for the rotation of the inner scraper (305) and the outer scraper (304).

5. A scale filtration structure according to claim 4, characterized in that, The number of outer blades of the water turbine blade (306) is greater than the number of inner scrapers (305) and outer scrapers (304), and the bottom horizontal height of the water turbine blade (306) is greater than the port horizontal height of the filter inlet (107).

6. The scale filtration structure according to claim 2, characterized in that, The top of the I-shaped seat (301) fits tightly against the bottom of the filter element body (201). Sealing elements are provided at the connection between the filter element body (201) and the outlet (102), the outlet (102), the drain outlet (105), the connection between the three-way valve (108) and the external pipeline, and the threaded connection between the bottom cover (104) and the filter cylinder shell (101).

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