IMPROVED FILTER CORE STRUCTURE

Abstract

Disclosed is an improved filter core structure, comprising a filter core housing (1), the filter core housing (1) respectively comprising an upper area (11) and a lower area (12) according to high to low positions, the upper area (11) and the lower area (12) being in mutual communication, the upper area (11) being provided with a front filter core (2), the lower area (12) being provided with a kernel filter core (3), and the front filter core (2) comprising at least two filtering materials, and an inner layer core (21) and an outer layer core (22) provided according to position from inside to outside.

Claims

1. An improved filter element structure, comprising a filter element housing a), wherein the filter element housing a) comprises an upper region (11) and a lower region (12) according to high and lower positions, respectively, the upper region (11) and the lower region (12) are in communication with each other, the upper region (11) is provided with a prepositive filter element (2), the lower region (12) is provided with a core filter element (3), the prepositive filter element (2) comprises at least two filter materials, and an inner layer core (21) and an outer layer core (22) that are arranged according to inner and outer positions.

2. The improved filter element structure according to claim 1, wherein the outer layer core (22) is a PP folded filter element, the inner layer core (21) is a hollow carbon rod composite filter element, and the PP folded filter element is wrapped in an outer wall of the carbon rod composite filter element.

3. The improved filter element structure according to claim 1, the inner layer core (21) and the outer layer core (22) are arranged at the upper region (11) in a vertical manner.

4. The improved filter element structure according to claim 2, wherein the core filter element (3) is an ultrafiltration UF, and the ultrafiltration UF is arranged at a lower portion (12) in the vertical manner.

5. The improved filter element structure according to claim 4, further comprising a central water outlet pipe (4), the central water outlet pipe (4) comprising an upper end inlet (41) and a lower end outlet (42), and an upper end inlet (41) is in communication with the hollow carbon rod composite filter element, and the lower end outlet (42) is in communication with an inlet of the ultrafiltration UF.

6. The improved filter element structure according to claim 5, wherein the central water outlet pipe (4) comprises a pipe upper section (43), an extension platform (44) and an interface lower section (45), the extension platform (44) is arranged on an outer wall of a joint between the pipe upper section (43) and the interface lower section (45), the pipe upper section (43) and the interface lower section (45) are in communication with each other, the pipe upper section (43) is inserted into an inner cavity of the hollow carbon rod composite filter, and the interface lower section (45) is inserted into an upper inlet of the ultrafiltration UF.

7. The improved filter element structure according to claim 6, wherein the inner layer core (21) and the outer layer core (22) constitute a hollow cylindrical prepositive filter element (2), the cylindrical prepositive filter element (2) is sleeved outside the upper portion (43) of the central water outlet pipe (4) via a lower portion of an inner cavity of the carbon rod composite filter element of the inner layer core (21), and the bottom of the cylindricai prepositive filter element (2) is placed on the extension platform (44) of the central water outlet pipe (4).

8. The improved filter element structure according to claim 7, wherein the top of the cylindrical prepositive filter (2) is provided with a top cover (23) of a prepositive filter, the middle of the top cover (23) of the prepositive filter element is provided with a downward extending portion (231), the downward extending portion (231) is inserted into and the upper portion of the inner cavity of the carbon rod composite filter element of the inner layer core (21) of the prepositive filter element (2).

9. The improved filter element structure according to claim 6, wherein the central water outlet pipe (4) is arranged in the filter element housing (1), a portion at an inner cavity of the filter element housing above the extension platform (44) of the central water outlet pipe (4) is the upper region (11), a portion at the inner cavity of the filter element housing (1) below the extension platform (44) is the lower region (12), and the lower region (12) is lower than the upper region (11).

10. The improved fitter element structure according to claim 1, wherein the bottom of the filter element housing 1 is provided with a water inlet (5) and a water outlet (6), and the water outlet (6) is in communication with the core filter element (3), and the water inlet (5) is in communication with the upper region (11) via a periphery of the core filter element (3).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 is a view of an improved filter element structure of the present invention,

DETAILED DESCRIPTION OF THE INVENTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0022] Referring to FIG. 1, an improved filter element structure comprises a filter element housing 1, wherein the filter element housing I comprises an upper region 11 and a lower region 12 according to high and lower positions, respectively. The upper region 11 and the lower region 12 are in communication with each other. The upper region 11 is provided with a prepositive filter element 2, and the lower region 12 is provided with a core filter element 3. The prepositive filter element 2 comprises at least two filter materials, and an inner layer core 21 and an outer layer core 22 that are arranged according to inner and outer positions. The outer layer core 22 is a PP folded filter element. The inner layer core 21 is a hollow carbon rod composite filter element, The PP folded filter s wrapped on an outer wall of the carbon rod composite filter element.

[0023] The inner layer core 21 and the outer layer core 22 are arranged at the upper region 11 in a vertical manner. The core filter element 3 is an ultrafiltration UF, and the ultrafiltration UF is arranged at the lower region 12 in the vertical manner.

[0024] As a more specific solution, a central water outlet pipe 4 may be further comprised and comprises an upper end inlet 41 and a lower end outlet 42. The upper end inlet 41 is in communication with the hollow carbon rod composite filter element, and the lower end outlet 42 is in communication with an inlet of the ultrafiltration UF.

[0025] The central water outlet pipe 4 comprises a pipe upper section 43, an extension platform 44 and an interface lower section 45. The extension platform 44 is arranged on an outer wall of a joint between the pipe upper section 43 and the interface lower section 45. The pipe upper section 43 and the interface lower section 45 are in communication with each other. The pipe upper section 43 is inserted into an inner cavity of the hollow carbon rod composite filter element, and the interface lower section 45 is inserted into an upper inlet of the ultrafiltration UF.

[0026] The inner layer core 21 and the outer layer core 22 constitute a hollow cylindrical prepositive filter element 2, and the cylindrical prepositive filter element 2 is sleeved outside the pipe upper section 43 of the central water outlet pipe 4 via at a lower portion of the inner cavity of the carbon rod composite filter element of the inner layer core 21, and the bottom of the cylindrical prepositive filter element 2 is placed on the extension platform 44 of the center outlet pipe 4.

[0027] The top of the cylindrical prepositive filter element 2 is provided with a top cover 23 of the prepositive filter element 23. The middle of the top cover 23 of the prepositive filter element is provided with a downward extending portion 231, and the downward extending portion 231 is inserted into the upper portion of the inner cavity of carbon rod composite filter element of the inner layer core 21 of the prepositive filter element 2. The central water outlet pipe 4 is arranged in the filter element housing 1. A portion at the inner cavity of the filter element housing 1 above the extension platform 44 of the central water outlet pipe 4 is the upper region 11, and a portion at the inner cavity of the filter element housing 1 above the extension platform 44 of the central water outlet pipe is the lower region 11. The lower region 12 is higher than the upper region 11.

[0028] The bottom of the filter element housing 1 is provided with a water inlet 5 and a water outlet 6. The water outlet 6 is in communication with the core filter element 3, and the water inlet 5 is in communication with the upper region 11 via a periphery of the core filter element 3.

[0029] Working principle: water enters from the water inlet 5 at the bottom of the filter housing 1, is rushed upwards along the lower region 12 at the periphery of the core filter element 3, enters the upper region 11 the periphery of the prepositive filter element 2, enters the inner layer core 21 via a side wall of the outer layer core 22 of the prepositive filter element 2, is performed with initial filtration, flows down into the core filter element 3 via the central water outlet pipe 4 for secondary filtration, and is finally discharged from the water outlet 6 via the water outlet 6.