Preparation method of mineralized taste filter element, filter element and filter assembly

Abstract

The invention relates to the technical field of drinking water equipment filtration, in particular to a mineralized taste filter element preparation method, a mineralized taste filter element and a mineralized taste filter assembly. The mineralized taste filtering assembly comprises the mineralized taste carbon rod filter element and further comprises a shell and an inner mounting part fixed in the shell, and a water inlet and a water outlet are formed in the two ends of the shell respectively; the filter element is fixed in the shell through the inner mounting piece and is arranged between the water inlet and the water outlet. According to the invention, a certain content of minerals required by a human body is allowed to pass through the mineralized taste filtering assembly, and residual chlorine and trichloromethane can be effectively removed.

Description

Technical Field

[0001] The present invention relates to the technical field of drinking water equipment filtration, and in particular to a preparation method of a mineralized mouthfeel filter element, a mineralized mouthfeel filter element, and a mineralized mouthfeel filter assembly. Background Art

[0002] Traditional household water purifiers often have a low flow rate, and the carbon rod filter element must achieve high precision while ensuring filtration efficiency. Therefore, there is a problem of water not filling the filter element during use, resulting in incomplete filtration efficiency. Substances such as residual chlorine and chloroform will affect the water quality and taste. Summary of the Invention

[0003] One object of the present invention is to solve or alleviate the above technical problems.

[0004] The method adopted by the present invention is a method for preparing a mineralized taste carbon rod filter element, which includes the following steps: mixing five to thirty parts by mass of mineralized particles containing calcium, magnesium and potassium, forty to sixty parts of modified activated carbon and twenty-five to forty parts of a binder to obtain a mixture; and sintering the mixture into shape.

[0005] A further technical solution is to mix 10 g of one or more of dolomite, limestone, dolomite or calcite, 5 g of one or more of magnesite, brucite, periclase, mica or montmorillonite, 0.5 g of potassium feldspar, 40 g of activated carbon powder, and 25 g of a binder to obtain a mixture.

[0006] The method adopted by the present invention is to provide a mineralized mouthfeel carbon rod filter element, comprising a filter element 1 made according to the above-mentioned method for preparing the mineralized mouthfeel carbon rod filter element.

[0007] The means adopted by the present invention is a mineralized taste filter component, which includes the mineralized taste carbon rod filter element according to the above-mentioned method, and also includes an outer shell and an internal mounting part fixed in the outer shell, and the two ends of the outer shell are respectively provided with a water inlet and a water outlet; the filter element is fixed in the outer shell through the internal mounting part, and the filter element is arranged between the water inlet and the water outlet.

[0008] According to a further technical solution, the filter element is cylindrical and is provided with a filter element middle cavity, the filter element middle cavity is communicated with the water outlet, and a filtering gap is provided between the filter element and the inner wall of the shell.

[0009] A further technical solution also includes a spiral guide member, which includes a guide member rod and spiral blades arranged on the guide member rod. The spiral guide member is located at the water inlet, and the filter element is rotatably arranged in the shell so that the guide member rod faces the water inlet.

[0010] A further technical solution is that the internal mounting part is disc-shaped and the edge extends toward the filter element to form a positioning side wall that fits the outer wall of the filter element; the internal mounting part near the water outlet is provided with a water outlet tube facing the middle cavity of the filter element, and the water outlet tube is inserted into one end of the outer shell to connect the middle cavity of the filter element with the water outlet; the outer shell includes a detachable outer shell end cover; the internal mounting part near the outer shell end cover is provided with a guide rod slot, and the two ends of the guide rod are respectively embedded in the guide rod slot and the outer shell end cover.

[0011] This technical solution facilitates the assembly of the mineralized taste filtering component.

[0012] In order to verify the experimental effect of the above structure, the third embodiment (a further embodiment in which the filter element 1 is circular) and the fourth embodiment (a further embodiment including the outer shell end cover 49) in the specific implementation manner were used as samples to carry out mineral content experiments, chlorine removal experiments, chloroform removal experiments, and taste experiments.

[0013] Mineral content experiment: Pure water was input from the water inlet 41 at a rate of 1.0 L / min, and samples were collected from the water outlet 42. The calcium, magnesium, and potassium contents were detected using inductively coupled plasma mass spectrometry (ICPMS).

[0014] Depend on Figures 5 to 8 The experimental data from the mineral content experiment shows that the mineralized mouthfeel filter assembly of the third embodiment (circular coordinate points) allows a certain amount of minerals required by the human body to pass through the mineralized mouthfeel filter assembly. The mineralized mouthfeel filter assembly of the fourth embodiment (triangular coordinate points) allows the mineral content to be released smoothly, extending the effective service life of the mineralized mouthfeel filter assembly.

[0015] Residual chlorine removal experiment: Water spiked with sodium hypochlorite at a concentration of 2 mg / L was input from the water inlet 41 at a rate of 1.0 L / min, samples were collected from the water outlet 42, and the residual chlorine content was detected using a spectrophotometer.

[0016] Depend on Figure 9 、 10 The experimental data of the residual chlorine removal experiment shown in the figure shows that the mineralized taste filter assembly (circle coordinate point) of the third embodiment can effectively remove residual chlorine. Compared with the third embodiment, the mineralized taste filter assembly (triangle coordinate point) of the fourth embodiment has a better residual chlorine removal effect.

[0017] Chloroform removal experiment: Water with a chloroform concentration of 0.3 mg / L was input from the water inlet 41 at a rate of 1.0 L / min, and samples were collected from the water outlet 42. The chloroform content was detected using a gas chromatography-mass spectrometer (GCMS).

[0018] Depend on Figure 11 、 12The experimental data of the chloroform removal experiment shows that the mineralized taste filter assembly of the third embodiment (the circular coordinate points) can effectively remove chloroform. Compared with the third embodiment, the mineralized taste filter assembly of the fourth embodiment (the triangular coordinate points) has a better chloroform removal effect.

[0019] Taste experiment: The 6 tastes in the taste are defined as 10 points using standard samples spiked with water. The taste of the water sample is scored by at least 7 water tasters to calculate the average score. The 6 tastes of standard samples spiked with water are defined as follows: Bitter: Quinine - 6mg / L Astringency: Alum-60mg / L Salty: Sodium chloride - 200mg / L Sweetness: Sucrose-2000mg / L Sour: Citric acid-50mg / L Chemical odor: sodium hypochlorite-1mg / L Depend on Figures 13 to 15 The experimental data above show that the mineralized taste filter assembly of the fourth embodiment has less chemical odor and tastes sweeter than pure water. Water at 40°C still has less chemical odor than water at room temperature, and the sweetness is relatively weakened.

[0020] A further technical solution also includes an adjustment structure 33, which includes an adjustment inner tube 332 and an adjustment outer tube 331 that is fitly fixed to the inner wall of the filter element cavity 11. The adjustment inner tube 332 is arranged in the adjustment outer tube 331 and fits with the inner wall of the adjustment outer tube 331, so that the adjustment inner tube 332 can rotate relative to the adjustment outer tube 331; the adjustment outer tube 331 and the adjustment inner tube 332 are both provided with adjustment holes 339, and there is an overlapping part between the adjustment hole 339 of the adjustment outer tube 331 and the adjustment hole 339 of the adjustment inner tube 332, and the adjustment inner tube 332 is provided with an inner tube water outlet 333 that is directly or indirectly connected to the water outlet 42.

[0021] This technical solution can adjust the flow rate of water flowing from the outer wall of the filter element 1 into the filter element cavity 11.

[0022] As a further technical solution, the inner tube water outlet 333 faces the water outlet 42 , and a groove is provided on the inner wall of the inner tube water outlet 333 . When viewed along the water outlet 42 , the inner tube water outlet 333 is completely located inside the water outlet 42 .

[0023] This technical solution can conveniently rotate and adjust the inner tube 332.

[0024] According to a further technical solution, the adjustment hole 339 is a circular hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the mineralized taste filter assembly of the third embodiment.

[0026] Figure 2 It is a side view schematic diagram of the mineralized mouthfeel filter assembly of the third embodiment.

[0027] Figure 3 It is a three-dimensional schematic diagram of a spiral guide piece.

[0028] Figure 4 It is a three-dimensional schematic diagram of a cross-section SEC1; arrow one ARR1 indicates the direction and path of the pre-filtration water entering the shell from the water inlet; arrow two ARR2 indicates the direction and path of the pre-filtration water in the shell flowing from the filter gap to the outer wall of the filter element; the dotted arrow of arrow three ARR3 indicates the direction and path of the pre-filtration water passing through the filter element and entering the filter element cavity; arrow four ARR4 indicates the direction and path of the filtered water in the filter element cavity flowing out from the water outlet.

[0029] Figure 5 This is the experimental data table of the mineral content experiment.

[0030] Figure 6 This is a line chart comparing the calcium content of the effluent of the third embodiment (triangle diagram) and the fourth embodiment (circle diagram) in the mineral content experiment.

[0031] Figure 7 This is a line chart comparing the magnesium content in the effluent of the third embodiment (triangle diagram) and the fourth embodiment (circle diagram) in the mineral content experiment.

[0032] Figure 8 yes Figure 7 This is a line chart comparing the potassium content in the effluent of the third embodiment (triangle diagram) and the fourth embodiment (circle diagram) in the mineral content experiment.

[0033] Figure 9 This is the experimental data table for the residual chlorine removal experiment.

[0034] Figure 10 It is a line graph comparing the residual chlorine content in the effluent of the third embodiment (triangle diagram) and the fourth embodiment (circle diagram) in the residual chlorine removal experiment.

[0035] Figure 11 This is the experimental data table for the chloroform removal experiment.

[0036] Figure 12 It is a line graph comparing the chloroform content in the effluent of the third embodiment (triangle diagram) and the fourth embodiment (circle diagram) in the chloroform removal experiment.

[0037] Figure 13 This is a taste comparison table of the water from the third embodiment, the water from the fourth embodiment, and pure water at room temperature (25° C.) in the taste experiment data.

[0038] Figure 14 This is a taste comparison table of the water from the third embodiment, the water from the fourth embodiment, and pure water at 40°C in the taste experiment data.

[0039] Figure 15 This is a comparison table of the taste of the water from the fourth embodiment at room temperature and 40°C in the taste experiment data.

[0040] Figure 16 This is a schematic diagram of section 2 SEC2.

[0041] The accompanying drawings that best illustrate the technical features of the present invention are Figure 4 .

[0042] Section 1 SEC1; Section 2 SEC2; Arrow 1 ARR1; Arrow 2 ARR2; Arrow 3 ARR3; Arrow 4 ARR4; Filter element 1; Filter element cavity 11; Spiral guide 2; Spiral blade 21; Guide rod 22; Rod positioning portion 229; Internal mounting part 3; Guide rod slot 312; Water outlet insert 314; Sealing ring 319; Positioning side wall 32; Adjustment structure 33; Adjustment outer tube 331; Adjustment inner tube 332; Inner tube water outlet 333; Adjustment hole 339; Housing 4; Water inlet 41; Water outlet 42; Housing end cover 49; Filter gap 5. DETAILED DESCRIPTION

[0043] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0044] As a specific embodiment, the method for preparing the mineralized mouthfeel carbon stick filter element of the first embodiment includes the following steps: By weight, 5 to 30 parts of mineralized particles containing calcium, magnesium, and potassium, 40 to 60 parts of modified activated carbon, and 25 to 40 parts of a binder are mixed to obtain a mixture. For example, 10 g of one or more of dolomite, limestone, dolomite, or calcite, 5 g of one or more of magnesite, brucite, periclase, mica, or montmorillonite, 0.5 g of potassium feldspar, 40 g of activated carbon powder, and 25 g of a binder are mixed to obtain a mixture.

[0045] The mixture is sintered into a shape.

[0046] The mineralized mouth-feeling carbon stick filter element of the second embodiment includes a filter element 1 manufactured by the method for preparing the mineralized mouth-feeling carbon stick filter element of the first embodiment.

[0047] The mineralized taste filter assembly of the third embodiment includes the mineralized taste carbon rod filter element of the second embodiment, and also includes a shell 4 and an inner mounting part 3 fixed in the shell 4. The two ends of the shell 4 are respectively provided with a water inlet 41 and a water outlet 42.

[0048] The filter element 1 is fixed in the housing 4 through the inner mounting member 3 . The filter element 1 is arranged between the water inlet 41 and the water outlet 42 , so that water flowing in from the water inlet 41 must pass through the filter element 1 before flowing out from the water outlet 42 .

[0049] As one of the specific embodiments, the filter element 1 is cylindrical and is provided with a filter element cavity 11, the filter element cavity 11 is connected to the water outlet 42, and a filtering gap 5 is provided between the filter element 1 and the inner wall of the outer shell 4. It is easy to understand that the outer diameter of the filter element 1 is smaller than the inner diameter of the outer shell 4.

[0050] The mineralized taste filter assembly of the fourth embodiment differs from the third embodiment in that it further includes a spiral guide member 2, comprising a guide rod 22 and a spiral blade 21 disposed on the guide rod 22. For example, the guide rod 22 has a diameter of 5 cm, and the spiral blade 21 has an outer diameter of 30 cm and a lead of 15 cm. The housing 4 has an inner diameter of 50 cm and an inner cavity length of 300 cm. The spiral guide member 2 is positioned at the water inlet 41, and the filter element 1 is rotatably disposed within the housing 4 so that the guide rod 22 faces the water inlet 41.

[0051] As one specific embodiment, the inner mounting member 3 is disc-shaped, with its edge extending toward the filter element 1 to form a positioning sidewall 32 that fits against the outer wall of the filter element 1. It should be noted that the positioning sidewall 32 can be a circular cylindrical shape with an outer diameter smaller than the inner diameter of the outer shell 4. The positioning sidewall 32 can also be a strip with a circular sector cross-section (the circular sector is formed by stretching the shape along the axis of the filter element 1), with a water passage formed between two adjacent strips. The inner mounting member 3 near the water outlet 42 is provided with a water outlet spigot 314 facing the filter element cavity 11. The water outlet spigot 314 is inserted into one end of the outer shell 4 to connect the filter element cavity 11 with the water outlet 42. The outer shell 4 includes a removable outer shell end cap 49, such as a threaded connection between the outer shell 4 and the other parts of the outer shell 4. The inner mounting member 3 near the outer shell end cap 49 is provided with a guide rod slot 312, and the two ends of the guide rod 22 are respectively inserted into the guide rod slot 312 and the outer shell end cap 49. It should be noted that if Figure 4 As shown, one end of the guide rod 22 is embedded in the portion of the housing end cover 49, which shows that the water inlet 41 is completely separated by a C-shaped structure (not shown in the figure, the opening faces the water inlet 41), but the C-shaped structure does not block the water flow path. Figure 4The illustrated water flow path within the water inlet 41 is because the cross-section SEC1 does not cut through the water flow path within the C-shaped structure. For example, the C-shaped structure is generally cylindrical, with the opening facing the water inlet 41. The bottom end of the cylinder has a through hole, but the cross-section SEC1 does not cut through this through hole. During assembly, after inserting the two ends of the filter element 1 into the inner mounting parts 3, the filter element 1 and its two inner mounting parts 3 are inserted into the outer shell 4, with the outlet tube 314 inserted into one end of the outer shell 4. Then, the spiral guide member 2 is inserted and the outer shell end cap 49 is installed, facilitating assembly of the mineralized taste filter assembly.

[0052] The working principle is as follows: Figure 4 As shown, after the pre-filtration water enters the outer shell 4 from the water inlet 41, it is guided by the spiral blade 21 (the spiral blade 21 rotates) and then flows from the filter gap 5 to the outer wall of the filter element 1. The pre-filtration water passes through the filter element 1 and enters the filter element cavity 11 to be filtered and form filtered water, and then flows out from the water outlet 42.

[0053] As one of the specific embodiments, the adjustment structure 33 is also included. The adjustment structure 33 includes an adjustment inner tube 332 and an adjustment outer tube 331 fixed to the inner wall of the filter core cavity 11. The adjustment inner tube 332 is arranged in the adjustment outer tube 331 and fits with the inner wall of the adjustment outer tube 331, so that the adjustment inner tube 332 can rotate relative to the adjustment outer tube 331; the adjustment outer tube 331 and the adjustment inner tube 332 are both provided with adjustment holes 339, such as Figure 16 As shown, the adjustment hole 339 of the outer adjustment tube 331 overlaps with the adjustment hole 339 of the inner adjustment tube 332. The inner adjustment tube 332 is provided with an inner tube water outlet 333 that is directly or indirectly connected to the water outlet 42. By rotating the inner adjustment tube 332, the area of ​​the overlapping portion of the adjustment hole 339 of the outer adjustment tube 331 and the adjustment hole 339 of the inner adjustment tube 332 changes, thereby adjusting the amount of water flowing from the outer wall of the filter element 1 into the filter element cavity 11.

[0054] As one specific embodiment, inner tube outlet 333 faces outlet 42. The inner wall of inner tube outlet 333 is provided with a groove, so that inner tube outlet 333 is completely located within outlet 42 when viewed from the direction of outlet 42. For example, the inner wall of inner tube outlet 333 may be provided with a plurality of triangular-shaped grooves evenly spaced around its axis. A specialized tool (not shown in the drawings, e.g., a tool with a plurality of triangular-shaped protrusions on one end) is inserted from outlet 42 into inner tube outlet 333 (e.g., inserting the triangular-shaped protrusions into the triangular-shaped grooves) to facilitate rotational adjustment of inner tube 332.

[0055] As one of the specific implementations, the adjustment hole 339 is a circular hole.

[0056] The terms "first", "second", etc. used in the present invention do not indicate any order, quantity or importance, but are only used for distinction.

[0057] As used herein, the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.

[0058] Terms indicating orientation or position used in the present invention, such as top, bottom, side, longitudinal, lateral, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are intended to reflect relative positions rather than absolute positions.

[0059] As used herein, terms such as "substantially," "entirely," "approximately," and "closely" are qualifiers intended to indicate that a characteristic exists but a certain degree of deviation is permitted. The amount of such deviation may vary depending on the specific context; for example, the specific context of dimensional deviation may include, but is not limited to, standards related to dimensional tolerances.

Claims

1. A method for preparing a mineralized mouthfeel carbon rod filter element, characterized in that: It includes the following steps: By weight, 5 to 30 parts of mineralized particles containing calcium, magnesium, and potassium, 40 to 60 parts of modified activated carbon, and 25 to 40 parts of a binder are mixed to obtain a mixture; The mixture is sintered into a shape.

2. The method for preparing a mineralized mouthfeel carbon rod filter element according to claim 1, wherein: 10 g of one or more of limestone, dolomite or calcite, 5 g of one or more of magnesite, brucite, periclase, mica or montmorillonite, 0.5 g of potassium feldspar, 40 g of activated carbon powder and 25 g of a binder are mixed to obtain a mixture.

3. Mineralized taste carbon rod filter, its characteristics are: It comprises a filter element (1) made according to the method for preparing a mineralized mouthfeel carbon rod filter element according to claim 1 or 2.

4. A mineralized taste filter assembly comprising the mineralized taste carbon rod filter element according to claim 3, characterized in that: The invention also comprises an outer shell (4) and an inner mounting member (3) fixed in the outer shell (4); a water inlet (41) and a water outlet (42) are respectively provided at both ends of the outer shell (4); a filter element (1) is fixed in the outer shell (4) via the inner mounting member (3); and the filter element (1) is provided between the water inlet (41) and the water outlet (42).

5. The mineralized mouthfeel filter assembly according to claim 4, characterized in that: The filter element (1) is cylindrical and is provided with a filter element middle cavity (11), the filter element middle cavity (11) is communicated with the water outlet (42), and a filtering gap (5) is provided between the filter element (1) and the inner wall of the housing (4).

6. The mineralized mouthfeel filter assembly according to claim 5, characterized in that: The invention also includes a spiral flow guide (2), the spiral flow guide (2) including a flow guide rod (22) and a spiral blade (21) arranged on the flow guide rod (22), the spiral flow guide (2) is located at the water inlet (41), and the filter element (1) is rotatably arranged in the housing (4) so ​​that the flow guide rod (22) faces the water inlet (41).

7. The mineralized mouthfeel filter assembly according to claim 6, wherein the inner The mounting member (3) is disc-shaped and has an edge extending toward the filter element (1) to form a positioning side wall (32) that fits the outer wall of the filter element (1); the inner mounting member (3) near the water outlet (42) is provided with a water outlet insert (314) facing the filter element middle cavity (11); the water outlet insert (314) is inserted into one end of the outer shell (4) so ​​that the filter element middle cavity (11) is communicated with the water outlet (42); the outer shell (4) includes a detachable outer shell end cover (49); a guide rod slot (312) is provided near the connecting portion (31), and the two ends of the guide rod (22) are respectively embedded in the guide rod slot (312) and the outer shell end cover (49).

8. The mineralized mouthfeel filter assembly according to claim 1, wherein: The filter element further comprises an adjusting structure (33), the adjusting structure (33) comprising an adjusting inner tube (332) and an adjusting outer tube (331) fixedly fixed to the inner wall of the filter core cavity (11); the adjusting inner tube (332) is arranged in the adjusting outer tube (331) and is in contact with the inner wall of the adjusting outer tube (331), so that the adjusting inner tube (332) can rotate relative to the adjusting outer tube (331); the adjusting outer tube (331) and the adjusting inner tube (332) are both provided with an adjusting hole (339); the adjusting hole (339) of the adjusting outer tube (331) and the adjusting hole (339) of the adjusting inner tube (332) have an overlapping portion; and the adjusting inner tube (332) is provided with an inner tube water outlet (333) directly or indirectly connected to the water outlet (42).

9. The mineralized mouthfeel filter assembly according to claim 8, wherein: The inner tube water outlet (333) faces the water outlet (42), and a groove is provided on the inner wall of the inner tube water outlet (333). When viewed from the water outlet (42), the inner tube water outlet (333) is completely located inside the water outlet (42).

10. The mineralized mouthfeel filter assembly according to claim 8, wherein: The adjustment hole (339) is a circular hole.

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