Filtering assembly and filtering device

Abstract

The present invention discloses a filtration assembly, and relates to the field of membrane equipment, the filtration assembly comprises a first liquid collection cavity and a second liquid collection cavity, the first liquid collection cavity and the second liquid collection cavity are connected through at least two linear filtration tube groups, the filtration tube groups are arranged in parallel, any one filtration tube group comprises at least two filtration tubes arranged in series, and the filtration tubes are sequentially connected end to end; a dialysis pipeline is arranged in the first liquid collecting cavity, a dialysis hole used for discharging filtered clear liquid is formed in the filter pipe, the dialysis hole is communicated with the dialysis pipeline, and the first liquid collecting cavity is provided with a blow-off pipeline used for discharging filtered concentrated liquid, the movement path of filtered material flow is short, and pressure loss caused by flow direction switching of the filtered material flow in the filter pipe set is eliminated; the filtering material flow can be filtered without higher initial pressure, so that the energy consumption of the filtering device is reduced. The invention also provides a filtering device which comprises a circulating pipeline, a circulating pump and the filtering assembly, the filtering material flow can be filtered without higher initial pressure, and the whole energy consumption of the device is lower.

Description

Technical Field

[0001] The invention relates to the field of membrane equipment, in particular to a filtering component and a filtering device. Background Art

[0002] Ceramic membrane filtration equipment is widely used in precision super filtration and purification equipment in various fields. Its core component, inorganic ceramic membrane, has excellent thermal stability and pore stability. It is not only high in strength and resistant to chemical corrosion, but also has good cleaning and regeneration performance. It has the dual advantages of high-efficiency filtration and precision filtration. Traditional ceramic membrane filtration equipment usually sets two groups of ceramic membrane filter tubes in parallel. Each group of ceramic membrane filter tubes is connected to a liquid collecting chamber. Two different groups of ceramic membrane filter tubes are connected by an elbow to form a series structure of "ceramic membrane filter tube-liquid collecting chamber connected in sequence" for filtration treatment. The filtered material flow needs to pass through all the ceramic membrane filter tubes in sequence to complete a filtration. The flow path is long, which will cause a certain pressure loss during the circulation process. In addition, since the filtered material flow has to pass through the elbow many times, the pressure loss will further increase. The initial pressure of the filtered material flow needs to be increased to support the filtered material flow to complete the filtration, resulting in high energy consumption of the equipment. At the same time, this traditional ceramic membrane equipment occupies a large area and has high site requirements. Therefore, a new ceramic membrane filtration equipment is needed to overcome the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a filter assembly to solve the problems existing in the above-mentioned prior art. The filter tube groups in the filter assembly are arranged in parallel. After the filter flow comes out of the second liquid collecting chamber, it can enter the first liquid collecting chamber through only one filter tube group. The movement path of the filter flow is short, and a filtration can be completed when the pressure loss is not much. At the same time, the filter tube group has a linear structure without bends, which eliminates the pressure loss of the filter flow when switching the flow direction in the filter tube group. The filter flow can complete the filtration without a large initial pressure, so that the energy consumption of the filter device using the invention is reduced. The first liquid collecting chamber, the second liquid collecting chamber and the filter tube group in the filter assembly provided by the present invention are all arranged in the same plane, occupying a small space, and the layout is more flexible, and the site requirements are relatively low.

[0004] The present invention also provides a filtering device, comprising the above-mentioned filtering component, and its technical effects are no longer described in detail.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a filtering component, comprising a first liquid collecting chamber and a second liquid collecting chamber, wherein the first liquid collecting chamber and the second liquid collecting chamber are connected by at least two groups of linear filter tube groups, and the filter tube groups are arranged in parallel; any one of the filter tube groups comprises at least two filter tubes arranged in series, and the filter tubes are connected end to end in sequence; the filter tubes are provided with dialysis holes for discharging filtered clear liquid, and the dialysis holes are connected to a dialysis pipeline; the first liquid collecting chamber is provided with a sewage discharge pipeline for discharging filtered concentrated liquid.

[0007] Preferably, the filter tube includes an outer shell and a ceramic membrane filter element, and the ceramic membrane filter element is arranged in the outer shell; the ceramic membrane filter element is a rod-shaped structure, and the axis of the ceramic membrane filter element is parallel to the axis of the filter tube; there is a gap between the ceramic membrane filter element and the outer shell for precipitating the filtered clear liquid.

[0008] Preferably, at least two ceramic membrane filter elements are arranged in the outer shell of any one of the filter tubes.

[0009] Preferably, the first liquid collecting chamber and the second liquid collecting chamber are arranged in the same vertical plane, and the first liquid collecting chamber is located below the second liquid collecting chamber.

[0010] Preferably, the number of the dialysis hole is one, and the dialysis hole is located at the top of the filter tube.

[0011] Preferably, a first flange is provided at the end of the filter tube group, and the interface of the first flange is a convex conical interface; a second flange is provided on the first liquid collecting chamber to connect with the first flange, and the interface shape of the second flange is a concave conical interface matching the interface shape of the first flange; a third flange is provided on the second liquid collecting chamber to connect with the first flange, and the interface shape of the third flange is a concave conical interface matching the interface shape of the first flange.

[0012] Preferably, any one of the filter tube groups comprises two filter tubes.

[0013] The present invention also provides a filtering device, including a circulation pipeline, a circulation pump and the above-mentioned filtering assembly, wherein the first end of the circulation pipeline is connected to the first liquid collecting chamber, the second end of the circulation pipeline is connected to the second liquid collecting chamber, and the circulation pump used to drive the movement of materials is connected to the circulation pipeline.

[0014] Preferably, a feed port for replenishing the material to be filtered is provided on the circulation pipeline or the first liquid collecting chamber.

[0015] Preferably, the filter device further comprises a frame for supporting the filter assembly.

[0016] Compared with the prior art, the present invention has achieved the following technical effects:

[0017] The present invention provides a filter assembly, in which filter tube groups are arranged in parallel, and the filter flow can enter the first liquid collecting chamber after coming out of the second liquid collecting chamber through only one filter tube group, and the movement path of the filter flow is short, and a filtration can be completed when the pressure loss is not much, and at the same time, the filter tube group has a linear structure without bends, which eliminates the pressure loss of the filter flow when switching the flow direction in the filter tube group, and the filter flow can complete the filtration without a large initial pressure, so that the energy consumption of the filter device using the invention is reduced. The first liquid collecting chamber, the second liquid collecting chamber and the filter tube group in the filter assembly provided by the present invention are all arranged in the same plane, occupying a small space, and the arrangement is more flexible, and the site requirements are relatively low.

[0018] The present invention also provides a filtering device, comprising the above-mentioned filtering component, and its technical effects are no longer described in detail.

[0019] Compared with the prior art, the present invention also achieves the following technical effects:

[0020] 1. In the present invention, a protruding conical interface is provided at the end of the filter tube group, and a concave conical interface matching the protruding conical interface is provided on the first liquid collecting chamber and the second liquid collecting chamber. During installation, the two conical interfaces can be automatically aligned to achieve quick installation.

[0021] 2. In the present invention, the filter tube is arranged vertically, and the dialysis hole for discharging the filtered clear liquid is arranged at the top of the filter tube. The filtered clear liquid is discharged from the filter tube after being precipitated in the filter tube, so that the filtered clear liquid is cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of the filtering device in an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the internal structure of the filter tube in an embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the combined structure of the filter tube group and the first liquid collecting chamber in an embodiment of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the combination of the convex conical interface of the first flange and the concave conical interface of the second flange in an embodiment of the present invention.

[0027] Among them, 1. the first liquid collecting chamber; 2. the second liquid collecting chamber; 3. the filter tube; 4. the dialysis pipeline; 5. the sewage pipeline; 6. the outer shell; 7. the ceramic membrane filter element; 8. the circulation pipeline; 9. the circulation pump; 10. the feed port; 11. the frame. DETAILED DESCRIPTION

[0028] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0029] The purpose of the present invention is to provide a filter assembly to solve the problems existing in the above-mentioned prior art. The filter tube groups in the filter assembly are arranged in parallel. After the filter flow comes out of the second liquid collecting chamber, it can enter the first liquid collecting chamber through only one filter tube group. The movement path of the filter flow is short, and a filtration can be completed when the pressure loss is not much. At the same time, the filter tube group has a linear structure without bends, which eliminates the pressure loss of the filter flow when switching the flow direction in the filter tube group. The filter flow can complete the filtration without a large initial pressure, so that the energy consumption of the filter device using the invention is reduced. The first liquid collecting chamber, the second liquid collecting chamber and the filter tube group in the filter assembly provided by the present invention are all arranged in the same plane, occupying a small space, and the layout is more flexible, and the site requirements are relatively low.

[0030] The present invention also provides a filtering device, comprising the above-mentioned filtering component, and its technical effects are no longer described in detail.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 As shown, the present invention provides a filter assembly, including a first liquid collecting chamber 1 and a second liquid collecting chamber 2, the first liquid collecting chamber 1 and the second liquid collecting chamber 2 are connected by at least two groups of linear filter tube groups, the filter tube groups are arranged in parallel, and any filter tube group includes at least two filter tubes 3 arranged in series, the filter tubes 3 are connected end to end in sequence, and the filter tubes 3 are provided with dialysis holes for discharging filtered clear liquid, and the dialysis holes are connected to the dialysis pipeline 4. The first liquid collecting chamber 1 is provided with a sewage pipe 5 for discharging filtered concentrated liquid. The filtered material flow is distributed to each filter tube group in the second liquid collecting chamber 2, and the filtered material flow is divided into filtered clear liquid and filtered concentrated liquid during the filtration process. The filtered clear liquid is discharged from the filter assembly and then recovered. The filtered concentrated liquid enters the first liquid collecting chamber 1 and is divided into two parts, one part of which is discharged for treatment, and the other part will be mixed with new materials to be filtered to form a filtered material flow for continuous circulation filtration.

[0033] The present invention uses a straight filter tube group without any bends, thereby eliminating the pressure loss of the filter flow when switching the flow direction in the filter tube group. At the same time, the filter tube groups are arranged in parallel, and the filter flow only needs to pass through one filter tube group after coming out of the second liquid collecting chamber 2 to enter the first liquid collecting chamber 1. The movement path of the filter flow is short, and one filtration can be completed when the pressure loss is not much. The filter flow can complete the filtration without a large initial pressure, thereby reducing the energy consumption of the filtration device using the invention.

[0034] like Figure 2 As shown, the filter tube 3 includes a housing 6 and a ceramic membrane filter element 7. The ceramic membrane filter element 7 is disposed in the housing 6. The ceramic membrane filter element 7 is a rod-shaped structure. The axis of the ceramic membrane filter element 7 is parallel to the axis of the filter tube 3. There is a gap between the ceramic membrane filter element 7 and the housing 6 for separating the filtered clear liquid. The ceramic membrane has the function of allowing water molecules to pass through in one direction. The ceramic membrane filter element 7 can separate water molecules from the filtered material flow. The filtered material flow flows in from the first end of the ceramic membrane filter element 7. The filtered material flow after dehydration and concentration becomes a filtered concentrated liquid and continues to flow in the ceramic membrane filter element 7. The obtained filtered clear liquid is collected in the gap between the housing 6 and the ceramic membrane filter element 7. After the filtered clear liquid fills the gap, it will be discharged from the dialysis pores.

[0035] like Figure 2 As shown, at least two ceramic membrane filter elements 7 are disposed in the housing 6 of any filter tube 3. In a preferred embodiment, there are three ceramic membrane filter elements 7.

[0036] like Figure 1 and Figure 2 As shown, the first liquid collecting chamber 1 and the second liquid collecting chamber 2 are arranged in the same vertical plane, the first liquid collecting chamber 1 is located below the second liquid collecting chamber 2, the filter tube group is vertically arranged, and the filtered clear liquid can accumulate in the upright filter tube 3 due to gravity, and a small amount of dirt still existing in the filtered clear liquid will be deposited in the accumulated filtered clear liquid, that is, the lower layer of filtered clear liquid in the filter tube 3 is relatively turbid and the upper layer of filtered clear liquid is relatively clear. The number of dialysis holes on the filter tube 3 is one, and the dialysis hole is located at the top of the filter tube 3, so that the relatively clear upper layer of filtered clear liquid can flow out.

[0037] like Figure 3 and 4 As shown, a first flange is provided at the end of the filter tube group, and the interface of the first flange is a convex conical interface. A second flange is provided on the first liquid collecting chamber 1 to dock with the first flange, and the interface shape of the second flange is a concave conical interface matching the interface shape of the first flange. A third flange is provided on the second liquid collecting chamber 2 to dock with the first flange, and the interface shape of the third flange is a concave conical interface matching the interface shape of the first flange. The protruding conical interface cooperates with the concave conical interface, and the two conical interfaces can be automatically aligned during installation, thereby achieving quick installation.

[0038] like Figure 1As shown, any filter tube group includes two filter tubes 3.

[0039] The present invention also provides a filtering device, including a circulation pipeline 8, a circulation pump 9 and the above-mentioned filtering assembly, the first end of the circulation pipeline 8 is connected to the first liquid collecting chamber 1, the second end of the circulation pipeline 8 is connected to the second liquid collecting chamber 2, the circulation pump 9 for driving the movement of materials is connected to the circulation pipeline 8, the circulation pipeline 8, the second liquid collecting chamber 2, the filter tube group and the first liquid collecting chamber 1 are combined to form a complete filtering circulation path, the filtered material flow can reciprocate in this filtering circulation path for repeated filtration, so as to obtain the filtered clear liquid to the maximum extent.

[0040] like Figure 1 As shown, a feed port 10 for replenishing the material to be filtered is provided on the circulation pipeline 8 or the first liquid collecting chamber 1. In a preferred embodiment, the feed port 10 is provided at the connection between the first liquid collecting chamber 1 and the circulation pipeline 8 to facilitate mixing of the replenished material to be filtered with the filtration concentrate.

[0041] like Figure 1 As shown, the present invention further comprises a frame 11 for supporting the filter assembly.

[0042] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A filter assembly, characterized in that: It comprises a first liquid collecting chamber (1) and a second liquid collecting chamber (2), wherein the first liquid collecting chamber (1) and the second liquid collecting chamber (2) are connected via at least two groups of linear filter tube groups, and the filter tube groups are arranged in parallel; Any one of the filter tube groups comprises at least two filter tubes (3) arranged in series, and the filter tubes (3) are connected end to end in sequence; The filter tube (3) is provided with a dialysis hole for discharging filtered clear liquid, and the dialysis hole is connected to the dialysis pipeline (4); The first liquid collecting chamber (1) is provided with a sewage discharge pipe (5) for discharging the filtered concentrate.

2. The filter assembly according to claim 1, characterized in that: The filter tube (3) comprises an outer shell (6) and a ceramic membrane filter element (7), wherein the ceramic membrane filter element (7) is arranged in the outer shell (6); The ceramic membrane filter element (7) is a rod-shaped structure, and the axis of the ceramic membrane filter element (7) is parallel to the axis of the filter tube (3); There is a gap between the ceramic membrane filter element (7) and the housing (6) for separating out the filtered clear liquid.

3. The filter assembly according to claim 2, characterized in that: At least two ceramic membrane filter elements (7) are arranged in the outer shell (6) of any one of the filter tubes (3).

4. The filter assembly according to claim 2, characterized in that: The first liquid collecting chamber (1) and the second liquid collecting chamber (2) are arranged in the same vertical plane, and the first liquid collecting chamber (1) is located below the second liquid collecting chamber (2).

5. The filter assembly according to claim 3, characterized in that: The number of the dialysis hole is one, and the dialysis hole is located at the top of the filter tube (3).

6. The filter assembly according to claim 1, characterized in that: The end of the filter tube group is provided with a first flange, and the interface of the first flange is a raised conical interface; A second flange butting against the first flange is arranged on the first liquid collecting chamber (1), and the interface shape of the second flange is a concave conical interface matching the interface shape of the first flange; The second liquid collecting chamber (2) is provided with a third flange that is butt-jointed with the first flange, and the interface shape of the third flange is a concave conical interface that matches the interface shape of the first flange.

7. The filter assembly according to claim 1, characterized in that: Any one of the filter tube groups comprises two filter tubes (3).

8. A filtering device, characterized in that: It comprises a circulation pipeline (8), a circulation pump (9) and a filter assembly as claimed in any one of claims 1 to 7, wherein the first end of the circulation pipeline (8) is connected to the first liquid collecting chamber (1), the second end of the circulation pipeline (8) is connected to the second liquid collecting chamber (2), and the circulation pump (9) for driving the movement of materials is connected to the circulation pipeline (8).

9. The filtering device according to claim 8, characterized in that: The circulation pipeline (8) or the first liquid collecting chamber (1) is provided with a feed inlet (10) for replenishing the material to be filtered.

10. The filtering device according to claim 8 or 9, characterized in that: Also included is a frame (11) for supporting the filter assembly.

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