Nanofiltration membrane filter element structure capable of being combined for use

Abstract

The utility model relates to the technical field of nanofiltration membrane filter elements, and provides a combined nanofiltration membrane filter element structure which comprises a base and an internal supporting column, the internal supporting column is arranged in the middle of the top of the base, and a water injection cavity is formed in the internal supporting column. And water permeable holes are uniformly formed in the outer side of the water injection cavity in the inner supporting column. The combined structure is arranged, the connecting outer shell is arranged on the outer side of the outer side protective shell in a sleeving mode and is screwed down in a rotating mode, the deformation groove can deform inwards after being squeezed by the connecting outer shell in a rotating mode, the inner diameter size of the outer side protective shell can be changed after the deformation groove is deformed, the inner wall of the outer side protective shell is more attached to the outer wall of the water inlet pipe, and the water inlet pipe is protected. According to the combined nanofiltration membrane filter element structure, the water inlet pipe and the outer side protective shell are combined and connected together, and the sealing ring has a sealing effect, so that the combined nanofiltration membrane filter element structure has the functions of combining, tightening and preventing water leakage, and the convenience and applicability of the combined nanofiltration membrane filter element structure in use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nanofiltration membrane filter elements, in particular to a nanofiltration membrane filter element structure that can be used in combination. Background Art

[0002] Nanofiltration membrane is a highly efficient filtration material that can effectively separate dissolved substances and tiny particles with extremely high filtration efficiency. By combining and connecting multiple nanofiltration membrane filter elements, the filtration area can be increased and the filtration efficiency can be further improved. Therefore, it is necessary to design a nanofiltration membrane filter element structure that can be used in combination.

[0003] To this end, the patent with publication number CN116159437A discloses a nanofiltration membrane filter element assembly and filter, which relates to the field of nanofiltration membrane processing, including a shell and a sealing cover, and also includes: a plug-in unit: which is slidably connected to the end of the shell; a limiting portion: which is arranged on the sealing cover and adapted to the plug-in unit; when the sealing cover is inserted into the shell, the plug-in unit is driven to be inserted into the limiting portion of the sealing cover. The present invention provides a nanofiltration membrane filter element assembly, which, when the first sealing cover or the second sealing cover is inserted into the shell, causes the plug-in assembly to slide in the radial direction of the shell, thereby inserting the plug-in assembly into the limiting portion on the first sealing cover or the second sealing cover, and then fixing the first sealing cover or the second sealing cover, thereby avoiding slippage between the sealing cover and the shell, which causes the sealing effect to deteriorate;

[0004] Although the above-mentioned nanofiltration membrane filter element assembly and filter can avoid slippage between the sealing cover and the shell, resulting in a poor sealing effect, it is more troublesome to assemble during use. Therefore, it is necessary to design a nanofiltration membrane filter element structure that is easy to assemble. Utility Model Content

[0005] The purpose of the utility model is to provide a nanofiltration membrane filter element structure that can be used in combination, so as to solve the defect that the existing nanofiltration membrane filter element components and filters are difficult to combine during use.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a nanofiltration membrane filter element structure that can be used in combination, comprising a base and an internal support column;

[0007] An internal support column is provided at the middle position of the top of the base, a water injection cavity is provided inside the internal support column, water holes are evenly opened on the outside of the water injection cavity inside the internal support column, a filtering structure is provided on the outside of the internal support column, and a water inlet pipe is provided on the top of the water injection cavity;

[0008] Connecting structures are evenly arranged at the edge of the top of the base, and outer protective shells are fixed to the tops of the connecting structures. Water outlet holes are evenly opened inside the outer protective shells.

[0009] A combined structure is provided on the outside of the top of the outer protective shell, and the combined structure includes a connecting shell, a deformation groove and a sealing ring. The connecting shell is provided on the outside of the top of the outer protective shell, and a sealing ring is fixed on the inner wall of the top of the connecting shell. The deformation grooves are evenly opened on the top of the outer protective shell.

[0010] Preferably, the connection structure includes a connection groove, a connection block, and a clamping block. The connection grooves are evenly arranged on the top of the base, connection blocks are provided on both sides of the connection groove, and clamping blocks are fixed on the outside of the connection block. This makes the device easy to install and disassemble.

[0011] Preferably, the connecting grooves are evenly spaced on the top of the base, the connecting blocks are symmetrically distributed inside the connecting grooves, and the clamping blocks and the base form a clamping structure through the connecting grooves. Removing the connecting blocks and the clamping blocks from the inside of the connecting grooves separates the outer protective shell from the base.

[0012] Preferably, the filtering structure includes a first filter cotton, a second filter cotton, an activated carbon layer, and a semipermeable membrane layer. The first filter cotton is disposed outside the internal support column, the second filter cotton is disposed outside the first filter cotton, the activated carbon layer is disposed outside the second filter cotton, and the semipermeable membrane layer is disposed outside the activated carbon layer. This ensures that the device has a high-efficiency filtering function.

[0013] Preferably, the first filter cotton is actually polyester filter cotton, and the second filter cotton is actually cellulose filter cotton. The first filter cotton has a stable filtering effect and is economical and practical, while the second filter cotton is environmentally friendly and pollution-free, with stable performance and durability.

[0014] Preferably, the top end of the water inlet pipe passes through the outer protective shell and extends to the outside of the connecting shell, and the connecting shell and the outer protective shell are designed to be threadedly connected. Tightening the connecting shell can fix the outer protective shell and the water inlet pipe together.

[0015] Preferably, the inner sidewall of the top of the connecting shell is designed to be trapezoidal, and the deformation grooves are evenly spaced on the top of the outer protective shell. After the deformation grooves are deformed, the inner diameter of the outer protective shell is changed, so that the inner wall of the outer protective shell is more closely fitted to the outer wall of the water inlet pipe.

[0016] The utility model provides a nanofiltration membrane filter element structure that can be used in combination, which has the following advantages:

[0017] By providing a combined structure, the connecting shell is sleeved on the outside of the outer protective shell and rotated and tightened. After being squeezed by the rotation of the connecting shell, the deformation groove will deform inward. After the deformation, the inner diameter of the outer protective shell will be changed, so that the inner wall of the outer protective shell is more closely fitted to the outer wall of the water inlet pipe. The water inlet pipe and the outer protective shell are combined and connected together. The sealing ring can play a sealing role, thereby realizing the functions of combining, tightening and preventing water leakage of the device, thereby improving the convenience and applicability of the nanofiltration membrane filter element structure that can be used in combination;

[0018] By providing a connecting structure, the connecting block and the clamping block at the bottom end of the outer protective shell are aligned with the connecting groove and squeezed downward. When the connecting block is squeezed, it will deform inward and drive the clamping block into the interior of the connecting groove. When the outer protective shell and the base need to be separated, the outer protective shell can be lifted upward to remove the connecting block and the clamping block from the interior of the connecting groove. This realizes the function of easy installation and disassembly of the device, and improves the convenience of the nanofiltration membrane filter element structure that can be used in combination when in use.

[0019] By setting up a filtering structure, the first filter cotton is polyester filter cotton, which has good fixation and corrosion resistance, stable filtering effect, and is economical and practical. The second filter cotton is cellulose filter cotton, which is a natural material, environmentally friendly and pollution-free, with stable performance and durability. The activated carbon layer has a high porosity and surface area, and can effectively adsorb pollutants such as organic matter, odor, color and chlorine in the water, thereby improving the purity and taste of the water quality. The semi-permeable membrane layer has the function of efficient separation, which can selectively pass water and prevent impurities from passing through, thereby realizing the function of efficient filtration of the device and improving the working efficiency of the nanofiltration membrane filter element structure that can be used in combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 2 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0022] Figure 3 For the utility model Figure 1 Schematic diagram of the partially truncated and enlarged structure;

[0023] Figure 4 This is a schematic diagram of a top-view cross-sectional structure of the utility model;

[0024] Figure 5 This is a schematic diagram of a top-view cross-sectional structure of the utility model;

[0025] Figure 6It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0026] Explanation of the reference numerals in the figure: 1. Base; 2. Internal support column; 3. Water injection chamber; 4. Water permeable hole; 5. Connection structure; 501. Connection groove; 502. Connection block; 503. Snap-in block; 6. Outer protective shell; 7. Water outlet; 8. Filter structure; 801. First filter cotton; 802. Second filter cotton; 803. Activated carbon layer; 804. Semi-permeable membrane layer; 9. Water inlet pipe; 10. Combined structure; 1001. Connection shell; 1002. Deformation groove; 1003. Sealing ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1-6 The utility model provides a nanofiltration membrane filter element structure that can be used in combination, including a base 1 and an internal support column 2.

[0029] Reference Figure 1 and Figure 5 An internal support column 2 is provided at the middle position of the top of the base 1, and a water injection cavity 3 is provided inside the internal support column 2. Water permeable holes 4 are evenly opened on the outside of the water injection cavity 3 inside the internal support column 2, and a filtering structure 8 is provided on the outside of the internal support column 2. The filtering structure 8 includes a first filter cotton 801, a second filter cotton 802, an activated carbon layer 803 and a semi-permeable membrane layer 804. The first filter cotton 801 is provided on the outside of the internal support column 2, and the second filter cotton 802 is provided on the outside of the first filter cotton 801. The activated carbon layer 803 is provided on the outside of the second filter cotton 802, and the semi-permeable membrane layer 804 is provided on the outside of the activated carbon layer 803. The first filter cotton 801 is actually polyester filter cotton, and the second filter cotton 802 is actually cellulose filter cotton. A water inlet pipe 9 is provided on the top of the water injection cavity 3.

[0030] The first filter cotton 801 is polyester filter cotton, which has good fixation and corrosion resistance, stable filtering effect, and is economical and practical. The second filter cotton 802 is cellulose filter cotton, which is a natural material, environmentally friendly and pollution-free, with stable performance and durability. The activated carbon layer 803 has a high porosity and surface area, and can effectively absorb pollutants such as organic matter, odor, color and chlorine in the water, thereby improving the purity and taste of the water. The semi-permeable membrane layer 804 has the function of high-efficiency separation, which can selectively pass water through and prevent impurities from passing through.

[0031] Reference Figure 1 and Figure 2 , a connecting structure 5 is evenly arranged at the edge position of the top of the base 1, the connecting structure 5 includes a connecting groove 501, a connecting block 502 and a clamping block 503, the connecting groove 501 is evenly opened at the top of the base 1, connecting blocks 502 are provided on both sides of the connecting groove 501, and clamping blocks 503 are fixed on the outside of the connecting block 502, the connecting grooves 501 are evenly spaced on the top of the base 1, and the connecting blocks 502 are symmetrically distributed inside the connecting groove 501, and the clamping blocks 503 and the base 1 form a clamping structure through the connecting groove 501, and an outer protective shell 6 is fixed on the top of the connecting structure 5, and water outlet holes 7 are evenly opened inside the outer protective shell 6.

[0032] Align the connecting block 502 and the clamping block 503 at the bottom of the outer protective shell 6 with the connecting groove 501 and squeeze downward. The connecting block 502 will deform inward when squeezed, and drive the clamping block 503 into the interior of the connecting groove 501. When the outer protective shell 6 and the base 1 need to be separated, the outer protective shell 6 can be lifted upward to remove the connecting block 502 and the clamping block 503 from the interior of the connecting groove 501.

[0033] Reference Figure 1 、 Figure 3 、 Figure 4 and Figure 6 A combined structure 10 is provided on the outside of the top of the outer protective shell 6. The combined structure 10 includes a connecting shell 1001, a deformation groove 1002 and a sealing ring 1003. The connecting shell 1001 is provided on the outside of the top of the outer protective shell 6. A sealing ring 1003 is fixed on the inner wall of the top of the connecting shell 1001. The deformation grooves 1002 are evenly opened on the top of the outer protective shell 6. The top of the water inlet pipe 9 passes through the outer protective shell 6 and extends to the outside of the connecting shell 1001. The connecting shell 1001 and the outer protective shell 6 are designed with a threaded connection. The inner side wall of the top of the connecting shell 1001 is trapezoidal in design, and the deformation grooves 1002 are evenly spaced on the top of the outer protective shell 6.

[0034] The connecting shell 1001 is placed on the outside of the outer protective shell 6 and rotated to tighten. The deformation groove 1002 will be deformed inward after being rotated and squeezed by the connecting shell 1001. After the deformation groove 1002 is deformed, the inner diameter of the outer protective shell 6 will be changed, so that the inner wall of the outer protective shell 6 is more closely fitted to the outer wall of the water inlet pipe 9. The water inlet pipe 9 and the outer protective shell 6 are combined and connected together, and the sealing ring 1003 can play a sealing role.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nanofiltration membrane filter element structure that can be used in combination, comprising a base (1) and an internal support column (2); Its characteristics are: An internal support column (2) is provided at the middle position of the top of the base (1), a water injection cavity (3) is provided inside the internal support column (2), water permeable holes (4) are evenly provided on the outside of the water injection cavity (3) inside the internal support column (2), a filtering structure (8) is provided on the outside of the internal support column (2), and a water inlet pipe (9) is provided on the top of the water injection cavity (3); Connecting structures (5) are evenly arranged at the edge of the top of the base (1), an outer protective shell (6) is fixed to the top of each of the connecting structures (5), and water outlet holes (7) are evenly opened inside each of the outer protective shells (6); A combined structure (10) is provided on the outside of the top of the outer protective shell (6), and the combined structure (10) comprises a connecting shell (1001), a deformation groove (1002), and a sealing ring (1003). The connecting shell (1001) is provided on the outside of the top of the outer protective shell (6), a sealing ring (1003) is fixed on the inner wall of the top of the connecting shell (1001), and the deformation groove (1002) is evenly opened on the top of the outer protective shell (6).

2. The nanofiltration membrane filter element structure that can be used in combination according to claim 1, characterized in that: The connection structure (5) comprises a connection groove (501), a connection block (502) and a clamping block (503); the connection groove (501) is evenly arranged on the top of the base (1); connection blocks (502) are provided on both sides of the connection groove (501); and clamping blocks (503) are fixed on the outside of the connection block (502).

3. The nanofiltration membrane filter element structure that can be used in combination according to claim 2, characterized in that: The connecting grooves (501) are distributed at equal intervals on the top of the base (1), the connecting blocks (502) are distributed symmetrically inside the connecting grooves (501), and the clamping blocks (503) and the base (1) form a clamping structure through the connecting grooves (501).

4. The nanofiltration membrane filter element structure that can be used in combination according to claim 1, characterized in that: The filtering structure (8) comprises a first filter cotton (801), a second filter cotton (802), an activated carbon layer (803) and a semi-permeable membrane layer (804); the first filter cotton (801) is arranged on the outside of the internal support column (2); the second filter cotton (802) is arranged on the outside of the first filter cotton (801); the activated carbon layer (803) is arranged on the outside of the second filter cotton (802); and the semi-permeable membrane layer (804) is arranged on the outside of the activated carbon layer (803).

5. The nanofiltration membrane filter element structure that can be used in combination according to claim 4, characterized in that: The first filter cotton (801) is actually polyester filter cotton, and the second filter cotton (802) is actually cellulose filter cotton.

6. The nanofiltration membrane filter element structure that can be used in combination according to claim 1, characterized in that: The top end of the water inlet pipe (9) passes through the outer protective shell (6) and extends to the outside of the connecting shell (1001), and the connecting shell (1001) and the outer protective shell (6) are designed to be threadedly connected.

7. The nanofiltration membrane filter element structure that can be used in combination according to claim 1, characterized in that: The inner side wall of the top of the connecting shell (1001) is designed to be trapezoidal, and the deformation grooves (1002) are distributed at equal intervals on the top of the outer protective shell (6).

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