A water purifier device for purifying water quality

Abstract

The utility model belongs to the technical field of pure water machine, especially a pure water machine device for purifying water quality, including pure water machine body, install filter assembly in the reverse osmosis treatment system of pure water machine body, filter assembly includes RO membrane shell, central tube and RO membrane assembly, RO membrane assembly includes support membrane, flow guide assembly and reverse osmosis membrane, flow guide assembly includes connecting frame and a plurality of '' S '' shape guide pipe, and a plurality of '' S '' shape guide pipe fixedly connected in the inside of connecting frame, form compact area, gentle area, loose area on RO membrane assembly, and compact area, gentle area and loose area are in turn distributed from top to bottom on RO membrane assembly, make the water flow speed distribution more uniform on the membrane surface of reverse osmosis membrane by forcing water flow to change direction laminar boundary layer constantly, can help to alleviate the concentration difference polarization '' cumulative effect '' simultaneously, and reduce the energy consumption increase due to high resistance simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of pure water machine technology, specifically relating to a pure water machine device for purifying water quality. Background Technology

[0002] When purifying industrial water, a pure water machine is generally used. The purification process involves first pre-treating the water through the machine's pretreatment system, then sending the treated water to the reverse osmosis system for further purification, and finally to the post-treatment system. The reverse osmosis system is the core purification component of the entire pure water machine, while the RO membrane is the core filtration component. Spiral wound RO membranes are a common type of RO membrane, typically consisting of a support layer, a flow guide mesh, and a reverse osmosis filtration layer. The flow guide mesh directs water flow across the membrane surface, ensuring even distribution within the membrane and uniform purification across the entire membrane surface.

[0003] However, in traditional flow guide nets, the straight flow path easily causes the water flow to form a stable laminar flow, resulting in localized deposition of pollutants on the surface of the RO membrane. Furthermore, when the raw water enters the membrane element, the pressure at the inlet end is usually higher than that at the outlet end, which easily leads to the water flow concentrating in the high-pressure area, causing uneven stress on the membrane surface. At the same time, while traditional flow guide nets provide uniform flow guidance during use, the water flow at the inlet end is usually faster, while the water flow velocity at the outlet end decreases. This often results in solutes in the water flow at the inlet end being unable to pass through the membrane and accumulating on the membrane surface, forming a high-concentration boundary layer, and causing a concentration polarization "cumulative effect" in the flow guide net. Utility Model Content

[0004] This invention provides a pure water machine device for purifying water quality. It features a "maze-like" flow path with continuous turning within the flow guiding component, which forces the water flow to constantly change direction, forming local eddies and turbulence, and damaging the laminar boundary layer. This makes the water flow velocity distribution on the surface of the reverse osmosis membrane more uniform. At the same time, with the cooperation of the dense and loose zones, it can help alleviate the "cumulative effect" of concentration polarization and reduce the increase in energy consumption caused by high resistance.

[0005] To achieve the above objectives, a pure water machine device for purifying water quality includes a pure water machine body. A filter assembly is installed in the reverse osmosis treatment system of the pure water machine body. The filter assembly includes an RO membrane housing, a central tube, and an RO membrane module. The RO membrane module includes a support membrane, a flow guiding component, and a reverse osmosis membrane. The flow guiding component includes a connecting frame and several "S"-shaped guide tubes, with the several "S"-shaped guide tubes fixedly connected to the interior of the connecting frame. A tight zone, a smooth zone, and a loose zone are formed on the RO membrane module, and the tight zone, the smooth zone, and the loose zone are distributed sequentially from top to bottom on the RO membrane module. The tight zone is located near the inlet of the reverse osmosis treatment system in the pure water machine body, and the loose zone is located near the outlet of the reverse osmosis treatment system in the pure water machine body.

[0006] Preferably, the central tube is located inside the RO membrane housing, the RO membrane assembly is located between the RO membrane housing and the central tube, and the RO membrane assembly is rolled up and disposed outside the central tube.

[0007] Preferably, the curvature of the "S"-shaped guide tube decreases sequentially from the inlet to the outlet.

[0008] Preferably, the edge of the connecting frame is fixedly connected to both the supporting membrane and the reverse osmosis membrane, and the "S"-shaped guide tube is not connected to either the supporting membrane or the reverse osmosis membrane.

[0009] Preferably, two symmetrically arranged "S"-shaped guide tubes form a set of guide elements, and each set of guide elements is fixedly connected with a support protrusion, and the other side of the support protrusion is fixedly connected to the support membrane.

[0010] Preferably, the interior of the central tube has a plurality of inclined water inlet holes, and the plurality of inclined water inlet holes are inclined to the central tube.

[0011] This utility model has the following beneficial effects: 1. The compact zone suppresses the initial concentration polarization through strong disturbance, while the loose zone avoids the problem of "boundary layer thickening" caused by slow flow velocity of concentrate by reducing resistance. At this time, the cooperation between the compact and loose zones can help alleviate the "cumulative effect" of concentration polarization and reduce the increase in energy consumption caused by high resistance.

[0012] 2. The continuous turning "maze-like" flow path inside the flow guiding component can force the water flow to change direction constantly, forming local eddies and turbulence, and damaging the laminar boundary layer, making the water flow velocity distribution on the membrane surface of the reverse osmosis membrane more uniform. At the same time, the flow guiding path with varying width formed by the "S"-shaped guide tube with inconsistent curvature from top to bottom can further enhance the effect of water flow disturbance. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional structural diagram of the filter component in this utility model; Figure 3 This is a schematic diagram showing the disassembled RO membrane assembly of this utility model; Figure 4 This is a three-dimensional structural diagram of the flow guiding component in this utility model; In the diagram: 1. Pure water machine body; 2. Filter assembly; 21. RO membrane housing; 22. Central tube; 221. Slanted water inlet hole; 3. RO membrane assembly; 31. Support membrane; 32. Flow guide assembly; 321. Connecting frame; 322. "S" shaped guide tube; 323. Support protrusion; 33. Reverse osmosis membrane; 4. Tight zone; 5. Smooth zone; 6. Loose zone. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0015] Example 1: like Figure 1As shown in Figure 4: A pure water machine device for purifying water quality includes a pure water machine body 1. A filter assembly 2 is installed in the reverse osmosis treatment system of the pure water machine body 1. The filter assembly 2 includes an RO membrane housing 21, a central tube 22, and an RO membrane assembly 3. The RO membrane assembly 3 includes a support membrane 31, a flow guiding assembly 32, and a reverse osmosis membrane 33. The flow guiding assembly 32 includes a connecting frame 321 and several "S"-shaped guide tubes 322, with the "S"-shaped guide tubes 322 fixedly connected to the inside of the connecting frame 321. A tight zone 4, a smooth zone 5, and a loose zone 6 are formed on the RO membrane assembly 3, and these zones are distributed sequentially from top to bottom. The tight zone 4 is close to the inlet of the reverse osmosis treatment system in the pure water machine body 1, and the loose zone 6 is close to the outlet of the reverse osmosis treatment system in the pure water machine body 1. The central tube 22 is located inside the RO membrane housing 21. The RO membrane assembly 3 is located between the RO membrane housing 21 and the central tube 22, and the RO membrane assembly 3 is rolled up outside the central tube 22. The curvature of the "S"-shaped guide tube 322 decreases sequentially from the inlet to the outlet. The edge of the connecting frame 321 is fixedly connected to the support membrane 31 and the reverse osmosis membrane 33. There is no connection between the "S"-shaped guide tube 322 and the support membrane 31 and the reverse osmosis membrane 33. Two symmetrically arranged "S"-shaped guide tubes 322 form a set of flow guides. Each set of flow guides is fixedly connected to a support protrusion 323. The other side of the support protrusion 323 is fixedly connected to the support membrane 31. The interior of the central tube 22 has several inclined water inlet holes 221, and the several inclined water inlet holes 221 are inclined to the central tube 22.

[0016] The working principle of this technical solution is as follows: the pure water machine body 1 is the entire pure water machine device, used to purify water. When the pure water machine body 1 purifies water, it decomposes the water after passing through the pretreatment system, reverse osmosis system and post-treatment system in the pure water machine body 1. The filter component 2 is the reverse osmosis filter element in the reverse osmosis system, used to perform reverse osmosis purification treatment on the water sent into the pretreatment channel. The RO membrane housing 21 is the outer housing of the entire system, used to provide installation space for the RO membrane module 3. The central tube 22 is used as the channel for transporting the pure water purified by the RO membrane module 3. The RO membrane module is the core filter component of the entire reverse osmosis system. The support membrane 31 in the RO membrane module 3 provides support for the flow guiding component 32 and the reverse osmosis membrane 33. The flow guiding component 32 guides the flow of water within the entire RO membrane module 3. The connecting frame 321 in the flow guiding component 32 provides a connecting carrier for several "S"-shaped guide tubes 322. With the cooperation of several "S"-shaped guide tubes 322 with varying local curvatures, the entire flow guiding component 32 forms a "maze-like" flow path. The curvature of the "S"-shaped guide tubes 322 decreases sequentially from the inlet to the outlet, resulting in a unique flow path on the entire flow guiding component 32. The RO membrane module 3 is divided into three zones: a dense zone 4, a gentle zone 5, and a loose zone 6. The denser dense zone 4 divides the concentrated water flow at the inlet into more smaller tributaries. Simultaneously, the dense turning structure of the "S"-shaped guide pipe 322 forces the water flow to undergo severe disturbance, disrupting the laminar boundary layer and reducing the standard deviation of the surface velocity distribution at the inlet. This avoids localized "high-pollution zones" caused by concentrated water flow. Furthermore, when the pressure of the raw water entering the RO membrane module 3 is high, such as in a high-pressure RO system, the high resistance formed by the dense grid in the dense zone 4 acts as a "throttling buffer," reducing the direct impact of the water flow on the membrane surface of the RO membrane module 3. The impact pressure helps reduce physical damage to the membrane layer caused by instantaneous high pressure. The looser zone 6 near the outlet, by expanding the flow channel cross-section, reduces the flow resistance of the concentrate, decreases pollutant deposition, and helps reduce resistance loss, maintaining an effective flow velocity. Meanwhile, the denser zone 4 near the inlet, through strong disturbance, suppresses the initial concentration polarization caused by the accumulation of solutes such as salts and organic matter on the membrane surface due to their inability to permeate the membrane, thus preventing the formation of a high-concentration boundary layer. The looser zone 6 near the outlet, by reducing resistance, avoids the problem of "boundary layer thickening" caused by excessively slow concentrate flow velocity. Thus, the combined effect of the denser zone 4 and the looser zone 6 helps alleviate concentration polarization. The polarization "cumulative effect" reduces the increase in energy consumption caused by high resistance. The smooth zone 5, located between the dense zone 4 and the loose zone 6, is used to smoothly transition between the dense zone 4 and the loose zone 6. This avoids the flow channel resistance on the flow guide component 32 from dropping sharply in the transition zone, causing local water flow turbulence and uneven stress on the reverse osmosis membrane 33. The middle part is the core area for pollutant interception. The moderate density in the smooth zone 5 allows the water flow and the membrane surface to form a stable turbulent state, and enables sufficient contact between the membrane surface and the water flow. This maintains sufficient flushing force to prevent pollutant deposition while allowing effective contact between the solute and the membrane, which helps to improve the desalination rate. Furthermore, the continuously changing "maze-like" flow path inside the flow guiding component 32 forces the water flow to constantly change direction. Compared to the straight flow guiding path of traditional flow guiding nets, which causes localized deposition of pollutants on the surface of the reverse osmosis membrane 33 due to the formation of stable laminar flow during flow guiding, the flow guiding component 32, through continuous turning, can form local eddies and turbulence, and disrupt the laminar boundary layer, making the water velocity distribution on the membrane surface of the reverse osmosis membrane 33 more uniform. At the same time, the alternating wide and narrow cross-section formed by the "S"-shaped guide tubes 322 with inconsistent curvature from top to bottom can further enhance the effect of water flow disturbance. Among them, the narrow section in the tight zone 4 can accelerate the water flow. The wide section in the loose zone 6 can slow down the water flow and form a backflow, making the contact between the raw water and the membrane surface more sufficient. It can avoid local dead zones of water flow. At the same time, the multi-turn structure on the flow guide component 32 will also cause local resistance loss and gradually disperse the high pressure at the inlet end to the entire flow channel, making the pressure distribution on the membrane surface more uniform. This alleviates the problem that when the raw water enters the RO membrane module 3, the water flow is concentrated in the high-pressure area due to the higher pressure at the inlet end than at the outlet end, causing uneven stress on the membrane surface. At the same time, pressure balance can reduce the membrane deformation of the RO membrane module 3 caused by local high pressure, which helps to improve the uniformity of the contact between the water flow and the membrane surface in the RO membrane module 3. The support protrusion 323 set on the "S"-shaped guide tube 322 serves as a carrier for connecting the flow guiding component 32 with the support membrane 31 and the reverse osmosis membrane 33. The support protrusion 323 provides a point connection between the support membrane 31 and the flow guiding component 32, which can reduce the contact area between the flow guiding path on the flow guiding component 32 and the membrane surface. At the same time, it can avoid linear friction between the mesh and the membrane surface. Meanwhile, the non-contact area formed by the support protrusion 323 between the flow guiding component 32 and the support membrane 31 forms a flexible flow channel. When the water pressure fluctuates, the flow guiding component 32 can adaptively adjust the flow channel space by making a small deformation in the flexible flow channel, avoiding flow channel blockage caused by rigid contact. The inclined water inlet 221 on the central tube 22 is inclined. When the raw water permeates into the central tube 22, it drives the water flow in the tube to flow along a spiral trajectory. This rotating flow will forcibly disturb the water in the central tube 22, destroy the laminar flow boundary, and thus reduce the enrichment of solutes on the membrane surface.

[0017] The workflow of this technical solution is as follows: During the water purification process, after the water enters the interior of the filter component 2, it enters the compact zone 4 through the inlet. The dense flow path inside the compact zone 4 can quickly guide the water to other areas and flow towards the loose zone 6 through the smooth zone 5. During the water flow, due to the large external water pressure, the water pressure here is provided by the booster pump in the pure water machine body 1. At this time, the water on one side of the reverse osmosis membrane 33 can permeate to the reverse osmosis membrane 33 under the action of external water pressure. During the process of water permeating to the reverse osmosis membrane 33, the reverse osmosis membrane 33 can complete the filtration of the water. Then, the filtered water enters the inner cavity of the central tube 22 through the inclined inlet hole 221 and is discharged through the pure water outlet at the bottom.

[0018] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the invention; these examples are merely for the purpose of helping to understand the method and core ideas of the invention. The above descriptions are only preferred embodiments of the invention. It should be pointed out that, due to the limitations of written expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or variations can be made without departing from the principles of the invention, and the above technical features can be combined in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this invention.

Claims

1. A water purifier device for purifying water quality, comprising a water purifier body (1), characterized in that: The reverse osmosis treatment system of the pure water machine body (1) is equipped with a filter assembly (2). The filter assembly (2) includes an RO membrane housing (21), a central tube (22), and an RO membrane assembly (3). The RO membrane assembly (3) includes a support membrane (31), a flow guiding assembly (32), and a reverse osmosis membrane (33). The flow guiding assembly (32) includes a connecting frame (321) and several "S"-shaped guide tubes (322), and several "S"-shaped guide tubes (322) are fixedly connected to the inside of the connecting frame (321). The RO membrane module (3) forms a tight zone (4), a smooth zone (5), and a loose zone (6), and the tight zone (4), the smooth zone (5), and the loose zone (6) are distributed from top to bottom on the RO membrane module (3). The tight zone (4) is close to the inlet of the reverse osmosis treatment system in the pure water machine body (1), and the loose zone (6) is close to the outlet of the reverse osmosis treatment system in the pure water machine body (1).

2. A pure water machine device for purifying water quality according to claim 1, characterized in that: The central tube (22) is located inside the RO membrane housing (21), the RO membrane assembly (3) is located between the RO membrane housing (21) and the central tube (22), and the RO membrane assembly (3) is rolled up outside the central tube (22).

3. A pure water machine device for purifying water quality according to claim 1, characterized in that: The curvature of the "S"-shaped guide tube (322) decreases sequentially from the inlet to the outlet.

4. A pure water machine device for purifying water quality according to claim 1, characterized in that: The edge of the connecting frame (321) is fixedly connected to the support membrane (31) and the reverse osmosis membrane (33), and the "S"-shaped guide tube (322) is not connected to the support membrane (31) and the reverse osmosis membrane (33).

5. A pure water machine device for purifying water quality according to claim 1, characterized in that: Two symmetrically arranged "S"-shaped guide tubes (322) form a set of guide elements, and each set of guide elements is fixedly connected to a support protrusion (323), and the other side of the support protrusion (323) is fixedly connected to the support membrane (31).

6. A pure water machine device for purifying water quality according to claim 1, characterized in that: The central tube (22) has several inclined water inlet holes (221) inside, and the several inclined water inlet holes (221) are inclined to the central tube (22).

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