Fluid purification device using flexible porous material

Abstract

The utility model discloses a fluid purification device using a flexible porous material, which structurally comprises a bearing container, a first porous plate, a filling body and a second porous plate are sequentially arranged between an inlet end and an outlet end of the bearing container, and the filling body is at least one flexible porous material layer laid in a layered manner. At least one circle of edge pressing structure is arranged on the edge, making contact with the wall of the bearing container, of the flexible porous material layer, and the edge pressing structure is an annular boss or an independently-arranged edge pressing frame, wherein the annular boss is arranged on the first porous plate and / or the second porous plate in a protruding mode towards the flexible porous material layer. The flexible porous material layer with a certain fluffy structure and ductility is adopted as the filler, the edge pressing frame and other edge pressing structures with certain thickness are arranged on the edge of the filler, the filler structure with the sparse middle and the dense periphery is formed, large overflowing pressure can be borne, overflowing does not exist on the edge, and the advantages of being low in assembly difficulty, high in reliability and the like are achieved. The fluid is in full contact with the filling body, and the purification effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluid purification, and particularly relates to a fluid purification device using a flexible porous material. Background Art

[0002] Purification refers to the process of effectively removing impurities contained in the original substance without reacting with the main components and without introducing new impurities. Most of the purification processes involve at least one fluid phase, which flows through the filler in the purification component to separate and remove the impurities. According to the phase to be separated, it can be divided into solid-liquid separation (such as filtration), liquid-liquid separation (such as oil-water separation), gas-liquid separation (such as oil-gas separation), gas-solid separation (such as dust removal), etc. Commonly used fillers are mostly porous materials, including flexible porous materials with a certain fluffiness and compressible deformation, such as porous sponges, fiber products such as non-woven fabrics that have been processed to a certain extent, and simple accumulations of loose fibers.

[0003] Because the flow of the fluid phase through the filler depends on the osmotic pressure difference formed at the inlet and outlet ends, when the aforementioned flexible porous material is used as the filler, under the osmotic pressure, a gap is easily generated between the edge of the filler and the carrier container, resulting in a small flow resistance of the fluid in the edge area of ​​the filler, and the fluid is easy to flow through this area. This part of the fluid usually has a poor purification effect, resulting in a certain proportion of impurities in the fluid at the outlet end, affecting the final removal efficiency. In the prior art, some equipment fixes the filler to the wall of the carrier container by welding, bonding, etc. to solve the aforementioned problem, but the actual production process is relatively complicated and difficult to operate, especially when the operable space of the carrier container is small, or the thickness of the filler is large, this problem is particularly prominent. Utility Model Content

[0004] The purpose of the utility model is to provide a fluid purification device using a flexible porous material, by arranging a pressure edge structure at the edge of the filler, thereby increasing the flow resistance at the edge of the filler, limiting or preventing the fluid from flowing through the edge area, and having the characteristics of simple assembly process and more thorough impurity removal effect.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model proposes a fluid purification device using a flexible porous material, the structure of which includes a carrying container, the carrying container is provided with an inlet end and an outlet end, the inlet end of the carrying container is provided with a first porous plate, the outlet end is provided with a second porous plate, a filling body is provided between the first porous plate and the second porous plate, the filling body is at least one layer of a flexible porous material layer laid in layers, and the edge of the flexible porous material layer in contact with the wall of the carrying container is provided with at least one circle of edge pressing structure;

[0007] Based on the above technical features, the device arranges a pressing edge structure with a certain thickness on the edge of a flexible porous material layer with a certain fluffy structure and ductility, thereby compacting the edge of the flexible porous material layer, and thereby increasing the flow resistance in its edge area, guiding the fluid to flow through the pores in the non-edge area of ​​the flexible porous material layer, promoting full contact between the fluid and the flexible porous material layer to intercept the substances to be removed, and achieving a better purification effect.

[0008] Preferably, the flexible porous material layer is a fiber cotton layer, a porous sponge or a non-woven fabric layer;

[0009] Furthermore, when the flexible porous material layer is multi-layered, the flexible porous material layers of different layers are one or a combination of fiber cotton layers, porous sponge and non-woven fabric layers to adapt to the removal of multiple types of impurities in the fluid;

[0010] Furthermore, the fiber cotton layer is made of one or more of metal fiber, inorganic fiber and organic fiber to adapt to the separation of substances with different physical and chemical properties;

[0011] Preferably, the edge pressing structure is an annular boss protruding from the first porous plate and / or the second porous plate toward the flexible porous material layer. This design enables the edge pressing structure and the first and second porous plates to be integrally formed, which is conducive to simplifying the assembly process and improving the sealing effect of the edge area of ​​the water inlet and outlet;

[0012] Preferably, the edge pressing structure is a separately arranged edge pressing frame, and the edge pressing frame is arranged between the flexible porous material layer and the first porous plate and / or the second porous plate to improve the flexibility of assembly;

[0013] Preferably, the edge pressing structure is a separately arranged edge pressing frame. When the flexible porous material layer is multi-layered, the edge pressing frame is arranged between the flexible porous material layers and / or between the flexible porous material layer and the second porous plate. The number and thickness of the edge pressing frames are determined according to the required compaction density of the edge of the filling body. The independently arranged edge pressing frame allows the edge pressing structure to adjust its position relative to the flexible porous material layer or to conveniently adjust the edge compaction density of the flexible porous material layer by increasing or decreasing the number of pressure frames. The assembly flexibility is good and the flow-through pressure bearing capacity is greater.

[0014] Furthermore, the first porous plate and the second porous plate are both structures with no holes on the periphery and flow holes evenly distributed in the middle area, wherein the non-porous area is opposite to the edge pressure structure and the width of the non-porous area is not less than the width of the edge pressure structure. This design can further limit the flow rate of the fluid in the edge area at the inlet and outlet ends;

[0015] Furthermore, when the flexible porous material layer is multi-layered, the filling body is provided with different porosities in sections; the porosity distribution in the filling body can be gradually increased or gradually decreased from the inlet end to the outlet end of the carrying container, or can be arranged in a staggered manner with large and small porosities, and the specific porosity change mode is determined according to the purification type;

[0016] Preferably, when the flexible porous material layer is multi-layer, a separation mesh is provided in the filling body, and the separation mesh is provided between adjacent layers of the flexible porous material layer. The separation mesh is provided separately or is integrally formed with the pressure edge structure. The number and position of the separation mesh are determined according to actual needs. The interlayer position limitation of the flexible porous material layer can be formed by the setting of the separation mesh, thereby achieving fine-tuning of the pores of the flexible porous material layer and improving the purification effect.

[0017] Beneficial Effects

[0018] One of the above technical solutions has the following advantages or beneficial effects:

[0019] 1) By using a flexible porous material layer with a certain fluffy structure and ductility as a filler, and setting a pressure frame and other edge pressure structures with a certain thickness on the edge of the filler, the porosity of the flexible porous material layer is fully adjusted, it is compressible, and has ductility. A filling body structure with a sparse middle and dense periphery is formed, which can withstand a large flow pressure without flow at the edge, has the characteristics of low assembly difficulty, sufficient contact between the fluid and the filling body, and good purification effect.

[0020] 2) The device can be applied to both gas and liquid fluid forms, and is also applicable to different types of purification processes such as filtration, adsorption, extraction and aggregation growth, and has a wide range of applications.

[0021] 3) By setting the first and second porous plates to have no holes on the periphery and evenly distributed flow holes in the middle area, effective guidance of the fluid flow path is achieved, further promoting the fluid to seep from the middle area rather than flow from the edge area, thereby improving the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0024] Figure 2 For this utility model Figure 1 A schematic top view of the second porous plate;

[0025] Figure 3This is a schematic diagram of the structure of the second embodiment of the utility model. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the structure of the second embodiment of the utility model. Figure 2 ;

[0027] In the figure: a carrying container 1; an inlet end 11; an outlet end 12; a first porous plate 2; a filling body 3; a flexible porous material layer 31; a separation mesh 32; a second porous plate 4; a pressing edge structure 5; an annular boss 51; and a pressing frame 52. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the embodiments, but the implementation manner of the present invention is not limited thereto.

[0029] illustrate:

[0030] 1. The flexible porous material of the present invention refers to a structure that is flexible as a whole, compressible in the thickness direction, relatively dense and has a high porosity.

[0031] 2. The device can be used alone or as part of other components, such as the filter element of filtering equipment, the filter element of coalescing tank of oil-water separation equipment, etc. When used as a single device, the outlet end can be set as a structure that can be connected to other devices.

[0032] 3. The fluid purification device provided by the utility model is suitable for various types of scenarios involving a fluid phase and achieving purification through a relatively high flow pressure, including but not limited to: purification methods such as mechanical blocking by controlling the porosity, physical or chemical adsorption through porous materials, specifically, such as solid-liquid separation (such as filtration), gas-solid separation (such as dust removal, air purification), liquid-liquid separation (such as oil-water separation), gas-liquid separation (such as oil-gas separation, dehumidification), gas-gas separation (such as exhaust gas treatment, deodorization process) and other purification processes.

[0033] Embodiment 1

[0034] This embodiment provides a fluid purification device using a flexible porous material, the structure of which includes a carrier container 1, the carrier container 1 can be a box-type container (such as Figure 1 ), columnar containers (such as Figure 2 and 3 ) or tubular container to adapt to different usage scenarios. The carrying container 1 is provided with an inlet end 11 and an outlet end 12. The inlet end 11 of the carrying container 1 is provided with a first porous plate 2, and the outlet end 12 is provided with a second porous plate 4. A filling body 3 is provided between the first porous plate 2 and the second porous plate 4. Figure 1As shown, the carrying container 1 is a box-type container, which includes, from bottom to top, an inlet end 11, a first porous plate 2, a filling body 3, a second porous plate 4 and an outlet end 12. During assembly, the second porous plate 4 acts on the filling body 3 to press the filling body 3 into the box-type container; the filling body 3 includes at least one layer of a flexible porous material layer 31 laid in layers, and the flexible porous material layer 31 can be a fiber cotton layer, a porous sponge or a non-woven fabric layer, wherein the non-woven fabric layer is a plurality of layers of non-woven fabric formed into an integrated structure with a certain thickness through processes such as needle punching and bonding. When the flexible porous material layer 31 has multiple layers, the flexible porous material layers 31 of different layers can be selected from a fiber cotton layer, a porous sponge or a non-woven fabric layer, or a combination of the aforementioned multiple layers can be selected to adapt to the removal of multiple types of impurities in the fluid. When the flexible porous material layer 31 is a fiber cotton layer, the porosity of the fiber cotton layer is adjusted by controlling the unit surface weight, and loose fibers of a certain length are made into a quilt-like layered structure with a certain fluffiness through spinning and other processes. The fibers used can be one or more of metal fibers, inorganic fibers, and organic fibers, which are selected according to the type of fluid used and the impurity removal process.

[0035] The edge of the flexible porous material layer 31 in contact with the wall of the carrying container 1 is provided with at least one circle of edge pressing structure 5 to form a denser structure at the edge of the flexible porous material layer 31 than in the non-edge area, thereby increasing the flow resistance of the fluid in the edge area, thereby promoting the fluid to form a high-pressure seepage flow state in the non-edge area, so that the fluid is fully in contact with the filling body 3, so as to facilitate the full retention or growth of the substance to be separated (i.e., the impurity phase). Figure 1 As shown, the edge pressing structure 5 is a separately arranged edge pressing frame 52, and the edge pressing frame 52 can be arranged between the flexible porous material layer 31 and the first porous plate 2 and / or the second porous plate 4; when the flexible porous material layer 31 is multi-layered, the edge pressing frame 52 can also be arranged between the flexible porous material layers 31 of different layers, or between the flexible porous material layer 31 and the second porous plate 4, or between the flexible porous material layers 31 at the same time. The setting position, setting number and thickness of the edge pressing frame 52 are determined according to the density required to be formed at the edge of the filling body 3. For example, in an application scenario with a higher osmotic pressure, if the density of the edge of the filling body 3 needs to be increased, the number of edge pressing frames 52 can be increased or by using a thicker edge pressing frame 52, such as setting the thickness of the edge pressing frame 52 to 50% of the thickness of the flexible porous material layer or more. Preferably, the inner side of the edge pressing frame 52 away from the container wall is provided with a chamfered structure, and the chamfered structure can be a single-sided chamfer or a double-sided chamfer, so that the inner side of the edge pressing frame 52 forms a triangle (such as Figure 1 ) or trapezoidal (such as Figure 4 ) to prevent the flexible porous material layer 31 from being locally damaged by excessive force.

[0036] like Figure 2 As shown, the first porous plate 2 and the second porous plate 4 both adopt a structure with no holes on the periphery and evenly distributed flow holes in the middle area, wherein the non-porous area is opposite to the edge pressure structure and the width of the non-porous area is not less than the width of the edge pressure structure, so as to form flow restrictions at the edges of the inlet end 11 and the outlet end 12, so as to promote the fluid to flow into or out of the central area of ​​the first porous plate 2 and the second porous plate 4. The evenly distributed flow holes in the central area can disperse the fluid so that the fluid evenly enters and passes through the filling body 3 or evenly flows out to achieve a better purification effect.

[0037] Furthermore, when the flexible porous material layer 31 is multi-layered, the flexible porous material layer 31 is provided with different porosities; the porosity distribution of the flexible porous material layer 31 can be gradually increased or gradually decreased from the inlet end to the outlet end of the carrying container, or can be a staggered arrangement of large and small porosities to improve the capacity to accommodate impurities. The specific porosity change method is determined according to the actual purification type. For example, impurity removal such as filtration and dust removal that intercepts solid matter adopts a layout method with gradually decreasing porosity to grade and intercept particles of different sizes. Impurity removal such as extraction, adsorption, oil-water separation and other liquid phase separation adopts a layout method with gradually increasing porosity to provide aggregation, growth space and overflow space.

[0038] Furthermore, when the flexible porous material layer 31 has multiple layers, a separation mesh 32 is provided in the filling body 3, and the separation mesh 32 is provided between the adjacent layers of the flexible porous material layer. The separation mesh 32 is provided separately (such as Figure 1 ) or integrally formed with the edge pressing structure 5 (such as Figure 4 ), the number and position of the separation mesh are determined according to actual needs. The separation mesh 32 can be used to limit the interlayer position of the flexible porous material layer 31, thereby achieving fine-tuning of the pores of the flexible porous material layer 31 and improving the purification effect. When the flexible porous material layer 31 is a fiber cotton layer, it can also limit the migration of fibers to avoid mixing of fibers between adjacent layers, which affects the porosity and further affects the purification effect.

[0039] Embodiment 2

[0040] This embodiment provides a fluid purification device using a flexible porous material, which is different from the first embodiment in that:

[0041] like Figure 3 As shown, the edge pressing structure 5 is an annular boss 51 protruding from the first porous plate 2 and / or the second porous plate 4 toward the flexible porous material layer 31;

[0042] like Figure 4 As shown, the edge pressing structure 5 includes the annular boss 51 and the independently arranged edge pressing frame 52 , and the annular boss 51 and the edge pressing frame 52 are used in combination.

[0043] The components not described in this embodiment and their relationships and functions are the same as those in the first embodiment.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the present invention.

Claims

1. A fluid purification device using a flexible porous material, comprising a carrying container, the carrying container having an inlet end and an outlet end, a first porous plate being provided at the inlet end of the carrying container, a second porous plate being provided at the outlet end, a filling body being provided between the first porous plate and the second porous plate, characterized in that: The filling body is at least one layer of flexible porous material layer laid in layers, and the edge of the flexible porous material layer in contact with the wall of the carrying container is provided with at least one circle of edge pressing structure.

2. A fluid purification device using a flexible porous material according to claim 1, characterized in that: The flexible porous material layer is a fiber cotton layer, a porous sponge or a non-woven fabric layer.

3. A fluid purification device using a flexible porous material according to claim 2, characterized in that: When the flexible porous material layer is multi-layered, the flexible porous material layers of different layers are one or a combination of fiber cotton layers, porous sponge and non-woven fabric layers.

4. A fluid purification device using a flexible porous material according to claim 2 or 3, characterized in that: The fiber cotton layer is made of one or more of metal fiber, inorganic fiber and organic fiber.

5. A fluid purification device using a flexible porous material according to claim 1, characterized in that: The edge pressing structure is an annular boss protruding from the first porous plate and / or the second porous plate toward the flexible porous material layer.

6. A fluid purification device using a flexible porous material according to claim 1, characterized in that: The edge pressing structure is a separately arranged edge pressing frame, and the edge pressing frame is arranged between the flexible porous material layer and the first porous plate and / or the second porous plate.

7. A fluid purification device using a flexible porous material according to claim 1, characterized in that: The edge pressing structure is a separately arranged edge pressing frame. When the flexible porous material layer is multi-layered, the edge pressing frame is arranged between the flexible porous material layers, and / or between the flexible porous material layer and the second porous plate. The number and thickness of the edge pressing frames are determined according to the compaction density required for the edge of the filling body.

8. A fluid purification device using a flexible porous material according to claim 1, characterized in that: The first porous plate and the second porous plate are both structures without holes in the periphery and with flow holes evenly distributed in the middle area, wherein the non-porous area is opposite to the edge pressure structure and the width of the non-porous area is not less than the width of the edge pressure structure.

9. A fluid purification device using a flexible porous material according to claim 1, characterized in that: When the flexible porous material layer is multi-layer, the filler body is provided with different porosities in sections.

10. A fluid purification device using a flexible porous material according to claim 1, characterized in that: When the flexible porous material layer is multi-layer, a separation mesh is provided in the filling body, and the separation mesh is provided between adjacent layers of the flexible porous material layer. The separation mesh is provided separately or is integrally formed with the edge pressing structure, and the number and position of the separation mesh are determined according to actual needs.

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