CN212799751U - Reduce waterway structure of RO membrane filter core raw water side TDS value - Google Patents
Reduce waterway structure of RO membrane filter core raw water side TDS value Download PDFInfo
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- CN212799751U CN212799751U CN202021550042.XU CN202021550042U CN212799751U CN 212799751 U CN212799751 U CN 212799751U CN 202021550042 U CN202021550042 U CN 202021550042U CN 212799751 U CN212799751 U CN 212799751U
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Abstract
The utility model relates to a waterway structure for reducing TDS value of raw water side of RO membrane filter element, which comprises a post-positioned filter component, an RO membrane filter element, a first one-way valve and a second one-way valve; the pure water outlet of the RO membrane filter element is communicated with the water inlet of the first one-way valve, the water outlet of the first one-way valve is communicated with the water inlet of the water inlet flow channel of the rear filter assembly, the water outlet of the water outlet flow channel of the rear filter assembly is communicated with the water inlet of the second one-way valve, and the water outlet of the second one-way valve is communicated with the water inlet of the RO membrane filter element. It has simple structure compactness, makes the pure water palirrhea to the former water side that reduces RO membrane filter core through adjusting the check valve, reduces the TDS value of former water side, has reduced advantages such as manufacturing cost.
Description
Technical Field
The utility model relates to a reduce waterway structure of RO membrane filter core raw water side TDS value.
Background
At present, in current domestic reverse osmosis (RO membrane) and Nanofiltration (NF) water purifier, RO/NF filter core is the pellicle, and the TDS value of former water side can be high, and the TDS value of pure water side can be low. When the device works, water on the raw water side with a high TDS value enters the pure water side with a low TDS value in a reverse osmosis mode through pressurizing on the raw water side; the raw water side pressure is reduced when the machine is stopped, and the TDS value of the pure water side is slowly increased under the condition of permeation; after a period of shutdown, the TDS value on the pure water side will become much higher than during normal operation. When the user used water once more, the TDS value of the first cup of water is higher than the TDS value of normal effluent a lot, has influenced filter effect and quality of water, influences user experience and feels. And because the TDS value of the raw water side is too high, crystallization and scaling can be caused, the RO membrane is blocked, and the service life of the membrane is influenced.
Aiming at the problems, filter elements capable of providing pure water for washing are available on the market, but the filter elements are complex in structure and high in manufacturing cost.
Disclosure of Invention
The utility model aims at overcoming prior art not enough and providing a reduce waterway structure of RO membrane filter core raw water side TDS value, simple structure is compact, makes the pure water palirrhea to the raw water side that reduces the RO membrane filter core through adjusting the check valve, reduces the TDS value of raw water side, has reduced manufacturing cost.
In order to achieve the above object, the present invention provides a filter cartridge structure for providing pure water for backwashing for an RO membrane filter cartridge, comprising:
a post-filter assembly; the post-filter assembly comprises a filter flask structure, a middle partition plate, a filter element assembly and a water pipe; the filter bottle structure is internally provided with a water inlet flow passage and a water outlet flow passage, the middle partition plate is arranged in an inner cavity of the filter bottle structure and is in sealing fit with the inner cavity of the filter bottle structure so as to divide the inner cavity into an upper cavity and a lower cavity, and a water outlet of the water inlet flow passage is communicated with the upper cavity; the filter element assembly is positioned in the upper cavity and comprises a post-positioned filter element, a filter element upper cover and a filter element lower cover; the filter element lower cover is arranged on the middle partition plate and has a gap so as to form a second water flow channel, the lower end part of the rear filter element is arranged on the filter element lower cover and is in sealing fit with the lower end part of the rear filter element, the filter element upper cover is arranged on the upper end part of the rear filter element and is in sealing fit with the upper end part of the rear filter element, gaps are formed between the outer side of the filter element upper cover and the outer side of the rear filter element and the inner wall of the upper cavity body so as to form a first water flow channel, one end of the first water flow channel is communicated with a water outlet of the water inlet flow channel, the other end of the first water flow channel is communicated with one; one end of the water pipe is communicated with the other end of the second water flow channel, and the other end of the water pipe is positioned at the bottom of the lower cavity and is communicated with the lower cavity; and
the RO membrane filter element, the first one-way valve and the second one-way valve; the pure water outlet of the RO membrane filter element is communicated with the water inlet of the first one-way valve, the water outlet of the first one-way valve is communicated with the water inlet of the water inlet flow channel, the water outlet of the water outlet flow channel is communicated with the water inlet of the second one-way valve, and the water outlet of the second one-way valve is communicated with the water inlet of the RO membrane filter element.
In the technical scheme, a lower support is arranged at the bottom of the lower cavity, a water flowing channel is arranged on the lower support, the lower end part of the water pipe is installed on the lower support, and the water pipe is communicated with the lower cavity through the water flowing channel.
In the technical scheme, the filter flask structure comprises a filter flask upper cover and a filter flask; the filter flask upper cover covers the upper opening of the filter flask and is in sealing fit with the upper opening to form an inner cavity of the filter flask structure, the water inlet flow channel penetrates through the filter flask upper cover, and the water outlet flow channel penetrates through the filter flask upper cover.
In the technical scheme, the filter flask further comprises a sealing ring, and the sealing ring is sleeved on the middle partition plate and is positioned between the middle partition plate and the inner wall of the inner cavity of the filter flask structure to isolate the upper cavity from the lower cavity.
Compared with the prior art, the utility model the advantage do: simple structure is compact, makes the pure water palirrhea to the former water side that reduces RO membrane filter core through adjusting the check valve, reduces the TDS value of former water side, has reduced manufacturing cost.
Drawings
Fig. 1 is a schematic view of the waterway structure of the present invention;
FIG. 2 is a schematic view of the post-filter assembly according to the present invention;
fig. 3 is a schematic structural diagram of the post-filter assembly of the present invention during water discharge.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present invention, the terms "upper" and "lower" indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention rather than requiring the present invention to be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 3, a filter cartridge structure for supplying pure water for backwashing to an RO membrane filter cartridge includes:
a post-filter assembly; the post-filter assembly comprises a filter flask structure, a middle partition plate 12, a filter element assembly and a water pipe 13; the filter bottle structure is provided with a water inlet flow passage 1 and a water outlet flow passage 3, the middle partition plate 12 is installed in an inner cavity of the filter bottle structure and is in sealing fit with the inner cavity of the filter bottle structure so as to divide the inner cavity into an upper cavity 41 and a lower cavity 42, and a water outlet of the water inlet flow passage 1 is communicated with the upper cavity 41; the filter element assembly is positioned in the upper cavity 41 and comprises a post-positioned filter element 8, a filter element upper cover 9 and a filter element lower cover 10; the filter element lower cover 10 is arranged on the middle partition plate 12 and has a gap to form a second water flow channel 101, the lower end part of the rear filter element 8 is arranged on the filter element lower cover 10 and is in sealing fit, the filter element upper cover 9 is arranged at the upper end part of the rear filter element 8 and is in sealing fit, gaps are formed between the outer side of the filter element upper cover 9 and the outer side of the rear filter element 8 and the inner wall of the upper cavity 41 to form a first water flow channel 48, one end of the first water flow channel 48 is communicated with a water outlet of the water inlet flow channel 1, the other end of the first water flow channel 48 is communicated with one end of the second water flow channel 101, and a water inlet of the water outlet flow channel 3 is communicated with the cylinder core 81 of the rear; one end of the water pipe 13 is communicated with the other end of the second water flow channel 101, and the other end of the water pipe 13 is positioned at the bottom of the lower cavity 42 and communicated with the lower cavity 42; and
an RO membrane filter element 6, a first one-way valve 5 and a second one-way valve 7; the pure water outlet of the RO membrane filter element 6 is communicated with the water inlet of the first one-way valve 5, the water outlet of the first one-way valve 5 is communicated with the water inlet of the water inlet flow channel 1, the water outlet of the water outlet flow channel 3 is communicated with the water inlet of the second one-way valve 7, and the water outlet of the second one-way valve 7 is communicated with the water inlet of the RO membrane filter element 6.
When water is fed, pure water sequentially passes through the first check valve 5, the water inlet flow channel 1, the upper cavity 41, the first water passing flow channel 48 and the second water passing flow channel 101 and then enters the lower cavity 42, air in the lower cavity 42 cannot be discharged and is trapped in the lower cavity 42, the pure water continuously enters, the liquid level of the lower cavity 42 continuously rises, air is compressed, and the air pressure in the lower cavity 42 is increased along with the increase of the air pressure until the pressure reaches a set value; after the machine is stopped, pure water in the lower cavity 42 reversely pushes compressed air, and the pure water sequentially passes through the second water flowing channel 101, the first water flowing channel 42, the filter cartridge 8, the cartridge core 81 of the filter cartridge 8, the water outlet flowing channel 3 and the second one-way valve 7 and then enters the RO membrane filter element 6 again, so that the RO membrane filter element 6 is washed, and the TDS value of the raw water side of the RO membrane filter element 6 is reduced.
In this embodiment, a lower bracket 14 is disposed at the bottom of the lower cavity 42, a water flowing channel 141 is disposed on the lower bracket 14, the lower end of the water pipe 13 is mounted on the lower bracket 14, and the water pipe 13 is communicated with the lower cavity 42 through the water flowing channel 141.
In this embodiment, the filter flask structure includes a filter flask upper cover 2 and a filter flask 4; the filter flask upper cover 2 covers the upper opening of the filter flask 4 and is in sealing fit with the upper opening to form an inner cavity of the filter flask structure, the water inlet flow passage 1 penetrates through the filter flask upper cover 2, and the water outlet flow passage 3 penetrates through the filter flask upper cover 2.
In this embodiment, the filter flask further comprises a sealing ring 11, and the sealing ring 11 is sleeved on the middle partition plate 12 and positioned between the middle partition plate 12 and the inner wall of the inner cavity of the filter flask structure to isolate the upper cavity 41 from the lower cavity 42.
The embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention.
Claims (4)
1. The utility model provides a reduce waterway structure of RO membrane filter core raw water side TDS value which characterized in that includes:
a post-filter assembly; the post-filter assembly comprises a filter flask structure, a middle partition plate (12), a filter element assembly and a water pipe (13); a water inlet flow channel (1) and a water outlet flow channel (3) are arranged in the filter flask structure, the middle partition plate (12) is arranged in an inner cavity of the filter flask structure and is in sealing fit with the inner cavity so as to divide the inner cavity into an upper cavity (41) and a lower cavity (42), and a water outlet of the water inlet flow channel (1) is communicated with the upper cavity (41); the filter element assembly is positioned in the upper cavity (41), and comprises a post-positioned filter element (8), a filter element upper cover (9) and a filter element lower cover (10); the filter element lower cover (10) is arranged on the middle partition plate (12) and has a gap to form a second water flow channel (101), the lower end part of the rear filter element (8) is arranged on the filter element lower cover (10) and is in sealing fit with the lower end part of the rear filter element (8), the filter element upper cover (9) is arranged at the upper end part of the rear filter element (8) and is in sealing fit with the upper end part of the rear filter element, gaps are formed between the outer side of the filter element upper cover (9) and the outer side of the rear filter element (8) and the inner wall of the upper cavity (41) to form a first water flow channel (48), one end of the first water flow channel (48) is communicated with a water outlet of the water inlet flow channel (1), the other end of the first water flow channel (48) is communicated with one end of the second water flow channel (101), and a water inlet of; one end of the water pipe (13) is communicated with the other end of the second water flow channel (101), and the other end of the water pipe (13) is positioned at the bottom of the lower cavity (42) and is communicated with the lower cavity (42); and
an RO membrane filter element (6), a first one-way valve (5) and a second one-way valve (7); the pure water outlet of the RO membrane filter element (6) is communicated with the water inlet of the first one-way valve (5), the water outlet of the first one-way valve (5) is communicated with the water inlet of the water inlet flow channel (1), the water outlet of the water outlet flow channel (3) is communicated with the water inlet of the second one-way valve (7), and the water outlet of the second one-way valve (7) is communicated with the water inlet of the RO membrane filter element (6).
2. The waterway structure for reducing the TDS value of the raw water side of the RO membrane filter cartridge as recited in claim 1, wherein a lower bracket (14) is provided at the bottom of the lower cavity (42), a water flowing channel (141) is provided on the lower bracket (14), the lower end of the water pipe (13) is installed on the lower bracket (14), and the water pipe (13) is communicated with the lower cavity (42) through the water flowing channel (141).
3. The waterway structure for reducing the TDS value of the raw water side of the RO membrane filter element according to claim 1, wherein the filter flask structure comprises a filter flask upper cover (2) and a filter flask (4); the filter flask is characterized in that the upper filter flask cover (2) covers the upper opening of the filter flask (4) and is in sealing fit with the upper opening to form an inner cavity of the filter flask structure, the water inlet flow channel (1) penetrates through the upper filter flask cover (2), and the water outlet flow channel (3) penetrates through the upper filter flask cover (2).
4. The waterway structure for reducing the TDS value of the raw water side of the RO membrane filter element according to claim 1, further comprising a sealing ring (11), wherein the sealing ring (11) is sleeved on the intermediate partition plate (12) and is positioned between the intermediate partition plate (12) and the inner wall of the inner cavity of the filter flask structure so as to isolate the upper cavity (41) from the lower cavity (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021550042.XU CN212799751U (en) | 2020-07-30 | 2020-07-30 | Reduce waterway structure of RO membrane filter core raw water side TDS value |
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| CN202021550042.XU CN212799751U (en) | 2020-07-30 | 2020-07-30 | Reduce waterway structure of RO membrane filter core raw water side TDS value |
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| CN212799751U true CN212799751U (en) | 2021-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111747487A (en) * | 2020-07-30 | 2020-10-09 | 中山市史麦斯净水科技有限公司 | Reduce waterway structure of RO membrane filter core raw water side TDS value |
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- 2020-07-30 CN CN202021550042.XU patent/CN212799751U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111747487A (en) * | 2020-07-30 | 2020-10-09 | 中山市史麦斯净水科技有限公司 | Reduce waterway structure of RO membrane filter core raw water side TDS value |
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