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CN-224226749-U - Filter core structure and purifier

CN224226749UCN 224226749 UCN224226749 UCN 224226749UCN-224226749-U

Abstract

The utility model belongs to the technical field of water purifying equipment, and discloses a filter element structure and a water purifier. The filter element structure comprises a filter flask, a central tube component and a filter component, wherein the primary filter unit is used for purifying raw water and adjusting a TDS value to form purified water, and the purified water flows into the secondary filter unit, so that the purified water is separated to form low-calcium-magnesium-ratio water and high-calcium-magnesium-ratio water. The filter element structure has the advantages that the primary filter unit and the secondary filter unit are integrated in the same filter flask and are arranged at intervals along the axial direction of the central tube component, the integrated composite design is utilized to replace the multistage separation design, the integration level of the filter element structure is improved, the volume of the filter element structure is reduced, the primary filter unit adopted by the filter element structure purifies raw water and adjusts the TDS value, and the secondary filter unit adopted separates at least part of purified water generated by the primary filter unit to form high-calcium-magnesium ratio water and low-calcium-magnesium ratio water, so that the low-calcium-magnesium ratio water is safe and reliable in obtaining mode.

Inventors

  • ZHAO YONGFENG
  • LI JIAN
  • WU TONG
  • LV XINXIN

Assignees

  • 青岛海尔施特劳斯科技有限公司
  • 青岛海尔施特劳斯水设备有限公司
  • 海尔智家股份有限公司

Dates

Publication Date
20260512
Application Date
20250324

Claims (10)

  1. 1. A filter cartridge structure comprising: A filter flask (100), wherein a water inlet (101) is arranged on the filter flask (100); The central tube assembly (200) is arranged in the filter flask (100), and a first water outlet flow channel (201) and a second water outlet flow channel (202) are formed in the central tube assembly (200); The filter assembly (300) is arranged in the filter flask (100) and sleeved outside the central tube assembly (200), the filter assembly (300) comprises a primary filter unit (310) and a secondary filter unit (320) which are arranged at intervals in the axial direction of the central tube assembly (200), the water inlet (101) is communicated with the water inlet end of the primary filter unit (310), a first water flowing channel is formed between the other end of the first water flowing channel (201) and the secondary filter unit (320), a second water flowing channel is formed between the primary filter unit (310) and the first water flowing channel (201), and a third water flowing channel (203) is formed between the filter assembly (300) and the filter flask (100); The primary filtering unit (310) is used for purifying raw water and adjusting the TDS value of the raw water to form purified water, the secondary filtering unit (320) is used for separating at least part of the purified water and forming low-calcium-magnesium-ratio water and high-calcium-magnesium-ratio water, the ratio of calcium to magnesium in the low-calcium-magnesium-ratio water is smaller than the ratio of calcium to magnesium in the high-calcium-magnesium-ratio water, the high-calcium-magnesium-ratio water flows to the second water outlet flow channel (202), and the low-calcium-magnesium-ratio water flows to the third water outlet flow channel (203).
  2. 2. The filter element structure according to claim 1, wherein a first water outlet (102), a second water outlet (103) and a third water outlet (104) are arranged on the filter bottle (100), one end of the first water outlet flow channel (201) is communicated with the first water outlet (102), the second water outlet flow channel (202) is communicated with the second water outlet (103), and the third water outlet flow channel (203) is communicated with the third water outlet (104); and/or the primary filtration unit (310) comprises an RO membrane or a desalination nanofiltration membrane; and/or, the secondary filtration unit (320) comprises a salt-splitting nanofiltration membrane; And/or the desalination rate of the magnesium sulfate by the two-stage filtering unit (320) is more than or equal to 85%; And/or the desalination rate of the secondary filtration unit (320) to sodium chloride is less than 50%; And/or the desalination rate of the secondary filtration unit (320) to calcium chloride is less than 50%; And/or, the filter assembly (300) further comprises a three-stage filter unit, wherein the three-stage filter unit is used for reducing the TDS value of the low-calcium-magnesium ratio water, and is a desalination nanofiltration membrane or an RO membrane.
  3. 3. The filter element structure according to claim 1, wherein the center tube assembly (200) comprises a first center tube (210) and a second center tube (220), the first center tube (210) is sleeved outside the second center tube (220), the first water outlet flow channel (201) is formed between the second center tube (220) and the first center tube (210), the second water outlet flow channel (202) is formed in the second center tube (220), the second center tube (220) comprises a first tube portion located in the first center tube (210) and a second tube portion protruding outside the first center tube (210), the primary filter unit (310) is sleeved outside the first center tube (210), and the secondary filter unit (320) is sleeved outside the second tube portion.
  4. 4. The filter element structure according to claim 1, wherein the center tube assembly (200) includes a first center tube (210), a second center tube (220) and a third center tube (230), the first center tube (210) is sleeved outside the second center tube (220), the first water outlet flow channel (201) is formed between the second center tube (220) and the first center tube (210), the third center tube (230) is coaxially communicated with the second center tube (220), the second water outlet flow channel (202) is jointly formed inside the second center tube (220) and inside the third center tube (230), the primary filter unit (310) is sleeved outside the first center tube (210), and the secondary filter unit (320) is sleeved outside the third center tube (230).
  5. 5. The filter element structure according to claim 4, further comprising a partition member (400), wherein the partition member (400) comprises a partition plate (410), a first plug tube (440) and a second plug tube (450) protruding on one side of the partition plate (410), and a third plug tube (460) protruding on the other side of the partition plate (410), the first plug tube (440) is sleeved outside the second plug tube (450), the first plug tube (440) is in plug-in fit with the first central tube (210), the second plug tube (450) is in plug-in fit with the second central tube (220), the third plug tube (460) is in plug-in fit with the third central tube (230), and the first water flow channel comprises a first overflow hole (401) arranged on the partition plate (410) and located between the first plug tube (440) and the second plug tube (450).
  6. 6. The filter cartridge arrangement of claim 1, further comprising a separator (400), the separator (400) being disposed between the primary filter unit (310) and the secondary filter unit (320) and configured to support the primary filter unit (310) and the secondary filter unit (320), the first water flow passage including at least one first flow passage aperture (401) disposed in the separator (400).
  7. 7. The filter cartridge structure according to claim 6, wherein the partition member (400) includes a partition plate (410), a first annular plate (420) and a second annular plate (430), the first annular plate (420) protrudes to one side in a circumferential direction of the partition plate (410) and forms a first installation cavity (402), the second annular plate (430) protrudes to the other side in the circumferential direction of the partition plate (410) and forms a second installation cavity (403), the first overflow hole (401) is provided on the partition plate (410) and is disposed opposite to the first water outlet flow passage (201), a water outlet end of the primary filter unit (310) is inserted into the first installation cavity (402), and a water inlet end of the secondary filter unit (320) is inserted into the second installation cavity (403).
  8. 8. The filter element structure according to claim 1, further comprising a support member (500), the support member (500) being disposed in the filter flask (100), the support member (500) comprising a support ring plate (510) and a third ring plate (520), the third ring plate (520) being disposed circumferentially of the support ring plate (510) and protruding toward one side of the support ring plate (510), the support ring plate (510) and the third ring plate (520) together forming a third installation cavity, the water inlet end of the primary filter unit (310) being inserted into the third installation cavity.
  9. 9. The filter cartridge arrangement of claim 4, further comprising a support member (500), the support member (500) comprising a fourth annular plate (530), the body (110) of the filter bottle (100) comprising a first annular portion (111), one of the first annular portion (111) and the fourth annular plate (530) forming a first mating groove, the other forming a first mating portion, the first mating portion and the first mating groove mating with each other; And/or, the bottle body (110) of the filter bottle (100) comprises a second annular part (112), one of the second annular part (112) and the first central tube (210) forms a second plug-in groove, and the other forms a second plug-in part, and the second plug-in part and the second plug-in groove are in plug-in fit; And/or, the bottle body (110) of the filter bottle (100) comprises a third annular part (113), one of the third annular part (113) and the second central tube (220) forms a third inserting groove, the other forms a third inserting part, and the third inserting part and the third inserting groove are in inserting fit.
  10. 10. A water purifier comprising a housing and the cartridge structure of any one of claims 1-9, the cartridge structure being disposed within the housing.

Description

Filter core structure and purifier Technical Field The utility model relates to the technical field of water purifying equipment, in particular to a filter element structure and a water purifier. Background Magnesium ion plays an important role in human body, and is mainly reflected in participating in catalytic enzyme reaction, improving muscle energy, promoting calcium absorption, regulating nervous system, protecting cardiovascular system and the like. Regarding the fact that magnesium ions promote the absorption of other ions, magnesium deficiency causes potassium and calcium loss, and if magnesium intake is insufficient, hypomagnesemia is liable to occur, thereby causing hypokalemia and hypocalcemia, whereas hypermagnesemia is rare. The filter element structure of the existing water purifier has high retention rate of magnesium ions and low retention rate of calcium ions, so that the content of calcium and magnesium in the final produced water is high, and a user can drink water in the water purifier for a long time to easily cause insufficient absorption of magnesium ions. In the prior art, minerals are generally introduced into a water purification system by a manual addition mode to increase the content of magnesium ions so as to reduce the ratio of calcium to magnesium, but the mode for reducing the ratio of calcium to magnesium has a certain risk in terms of sanitation and safety. Disclosure of utility model The utility model aims to provide a filter element structure and a water purifier, wherein the filter element structure is high in integration level, can generate purified water with low calcium-magnesium ratio according to the requirements of users, and is safe and reliable in a manner of reducing the calcium-magnesium ratio. To achieve the purpose, the utility model adopts the following technical scheme: The filter element structure comprises a filter flask, wherein a water inlet is arranged on the filter flask; the filter comprises a central tube component, a filter component, a first water outlet flow channel and a second water outlet flow channel, wherein the central tube component is internally provided with the first water outlet flow channel and the second water outlet flow channel, the filter component is arranged in the filter bottle and sleeved outside the central tube component, the filter component comprises a first-stage filter unit and a second-stage filter unit which are arranged at intervals in the axial direction of the central tube component, the water inlet is communicated with the water inlet end of the first-stage filter unit, a first water flow channel is formed between the other end of the first water outlet flow channel and the second-stage filter unit, a second water flow channel is formed between the first-stage filter unit and the first water outlet flow channel, a third water outlet flow channel is formed between the filter component and the filter bottle, the first-stage filter unit is used for purifying raw water and adjusting the TDS value of the raw water to form purified water, the second-stage filter unit is used for separating at least part of purified water and forming low-calcium-magnesium specific water and high-calcium-magnesium specific water, the calcium-magnesium content ratio in the low-calcium-magnesium specific water is smaller than the calcium-magnesium content ratio in the high-calcium-magnesium specific water, the high-calcium-magnesium specific water flow channel flows to the third water outlet flow channel and the second water outlet flow channel is lower than the water flow channel. Preferably, the filter bottle is provided with a first water outlet, a second water outlet and a third water outlet, one end of the first water outlet flow passage is communicated with the first water outlet, the second water outlet flow passage is communicated with the second water outlet, the third water outlet flow passage is communicated with the third water outlet, and/or the first-stage filtering unit comprises an RO membrane or a desalination nanofiltration membrane, and/or the second-stage filtering unit comprises a salt separation nanofiltration membrane, and/or the desalination rate of the second-stage filtering unit to magnesium sulfate is greater than or equal to 85%, and/or the desalination rate of the second-stage filtering unit to sodium chloride is less than 50%, and/or the desalination rate of the second-stage filtering unit to calcium chloride is less than 50%, and/or the filtering assembly further comprises a third-stage filtering unit for reducing the TDS value of low-calcium-magnesium ratio water, and the third-stage filtering unit is a desalination nanofiltration membrane or an RO membrane. Preferably, the central tube assembly comprises a first central tube and a second central tube, the first central tube is sleeved outside the second central tube, the first water outlet flow channel is formed between the second central tube and the first c