Anti-fouling filter device for industrial circulating water treatment

Abstract

The utility model provides a kind of scale inhibition filter device for industrial circulating water treatment, belong to circulating water scale inhibition technical field, including filter tube shell, filter component, horizontal shift subassembly and angle adjusting component;Filter component includes multiple scale inhibition filter element being installed in the inner chamber of filter tube shell with interval, the filter hole of adjacent two scale inhibition filter elements has aperture difference;Horizontal shift subassembly includes two linear guides being symmetrically arranged, each linear guide has multiple sliding blocks on it, and the sliding block on two linear guides one-to-one correspondence;Angle adjusting component includes multiple sets of rotation adjusting member and telescopic adjusting member being arranged in pairs.The scale inhibition filter device for industrial circulating water treatment provided by the utility model, aperture difference between scale inhibition filter element forms flow velocity sudden change, promotes the rapid mixing of ion in water, the spacing and inclination of scale inhibition filter element are adjustable, can be according to the real-time working condition of circulating water targetedly improve scale inhibition and descaling effect, enhance the adaptive capacity to water quality change.

Description

Technical Field

[0001] This utility model belongs to the field of scale inhibition technology for circulating water, and more specifically, it relates to a scale inhibition filtration device for industrial circulating water treatment. Background Technology

[0002] In industrial circulating water, the concentrations of scale-forming ions such as Ca²⁺, Mg²⁺, SiO3²⁻, and Ba²⁺ often exhibit periodic fluctuations. To prevent scale formation in industrial circulating water from affecting production, scale inhibition and removal measures are often adopted.

[0003] Currently, scale inhibition techniques include chemical precipitation, electromagnetic interference, and mechanical filtration. Chemical methods inhibit scale formation by adding scale inhibitors and corrosion inhibitors to react with scale-forming ions (such as Ca²⁺ and Mg²⁺) in the water. Electromagnetic interference uses electromagnetic fields to alter the movement of ions, thus inhibiting scale formation. Mechanical filtration uses 50-200μm filter screens to intercept suspended particles, but its retention rate for colloidal particles (<10μm) is less than 30%.

[0004] The above methods are all fixed parameter operation modes. When the operating conditions change, the scale inhibition efficiency of the fixed parameter operation mode decreases. The scale inhibition effect is significantly affected by factors such as water quality, flow rate, and temperature, and the stability is poor, making it difficult to meet the needs of long-term high-efficiency scale inhibition and removal. Utility Model Content

[0005] The purpose of this invention is to provide a scale inhibition filtration device for industrial circulating water treatment, which aims to solve the problems of single filtration parameters and poor stability of scale inhibition effect.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a scale inhibition filtration device for industrial circulating water treatment, comprising:

[0007] The filter housing is detachably connected to the circulating water pipe;

[0008] The filter assembly includes a plurality of scale-inhibiting filter elements spaced apart in the inner cavity of the filter housing, wherein the filter pores of two adjacent scale-inhibiting filter elements have a pore size difference.

[0009] The transverse movement assembly includes two symmetrically arranged linear guides, which are axially disposed on the inner sidewall of the filter tube shell. Each linear guide has multiple sliding blocks, and the sliding blocks on the two linear guides correspond one-to-one.

[0010] An angle adjustment assembly includes multiple pairs of rotating adjustment components and telescopic adjustment components. The multiple rotating adjustment components are correspondingly installed on multiple sliding blocks of one of the linear guide rails, and the multiple telescopic adjustment components are correspondingly installed on multiple sliding blocks of another linear guide rail. The pairs of rotating adjustment components and telescopic adjustment components are respectively connected to the two ends of the scale-inhibiting filter element.

[0011] When the two sliding blocks in a pair have the same stroke, the scale-inhibiting filter element is perpendicular to the axial direction of the filter housing, and the spacing between two adjacent scale-inhibiting filter elements changes.

[0012] When the two sliding blocks in a pair have different strokes, the rotation adjustment element rotates at one end of the scale-inhibiting filter element, and the telescopic adjustment element extends to compensate for the other end of the scale-inhibiting filter element, thus changing the tilt angle of the scale-inhibiting filter element.

[0013] As another embodiment of this application, the pore size difference between two adjacent scale-inhibiting filter elements is ≥14μm or the pore size ratio between two adjacent scale-inhibiting filter elements is ≥4:1.

[0014] In another embodiment of this application, the inner wall of the filter hole of the scale-inhibiting filter element is provided with a spiral guide groove, and the thickness of the scale-inhibiting filter element is greater than or equal to the pitch length of the spiral guide groove.

[0015] In another embodiment of this application, the filter assembly includes at least three scale-inhibiting filter elements, and the distance between two adjacent scale-inhibiting filter elements is greater than or equal to the thickness of the scale-inhibiting filter element.

[0016] In another embodiment of this application, the rotation adjustment member includes:

[0017] The base is fixedly installed on the end face of the sliding block away from the linear guide rail; the base has two ear plates spaced apart, and the plane of the two ear plates is parallel to the axis of the filter tube shell;

[0018] A rotating frame is hinged between the two ear plates via a rotating shaft;

[0019] The first elastic gripper is located on the side of the rotating frame facing the water inlet end of the filter tube shell. The first elastic gripper is close to or away from the rotating frame and is used to abut the scale inhibitor filter element against the outer wall of the rotating frame.

[0020] In another embodiment of this application, the rotating frame further includes:

[0021] A limiting groove is provided, which is horizontally opened on the rotating frame and the groove opening faces the water inlet end of the filter tube shell.

[0022] The first elastic gripper is an L-shaped plate structure. The fixed end of the first elastic gripper is located in the limiting groove and has a degree of freedom along the depth direction of the limiting groove. The first elastic gripper and the outer side wall of the rotating frame form a U-shaped slot, and the scale-inhibiting filter element is clamped in the slot.

[0023] In another embodiment of this application, the first elastic gripper includes:

[0024] The clamp includes a fixed section and an extension section connected vertically. One end of the fixed section extends into the limiting groove, and the other end of the fixed section is connected to the extension section. The extension section is parallel to the end face of the corresponding rotating frame.

[0025] The first elastic element connects the bottom of the limiting groove and the fixed section, and the first elastic element is always in a stretched state.

[0026] In another embodiment of this application, the telescopic adjustment member includes:

[0027] The mounting base is fixedly installed on the end face of the sliding block away from the linear guide rail. The mounting base has a mounting groove along the radial direction of the filter tube shell, and the groove opening faces the centerline of the filter tube shell.

[0028] Mounting bracket, the upper part of which is located inside the groove of the mounting slot, and the mounting bracket is connected to the bottom of the mounting slot by means of a telescopic component;

[0029] The second elastic gripper is located on the side of the mounting bracket facing the water inlet end of the filter housing. The second elastic gripper is close to or away from the mounting bracket and is used to abut the scale inhibitor filter element against the outer wall of the mounting bracket.

[0030] In another embodiment of this application, the mounting base further includes:

[0031] A limiting protrusion is located on the side of the mounting groove near the water outlet end of the filter tube shell. The limiting protrusion extends radially along the filter tube shell, and the free end of the limiting protrusion extends to be flush with the end of the mounting bracket away from the mounting groove.

[0032] The beneficial effects of the scale inhibition filtration device for industrial circulating water treatment provided by this utility model are as follows: Compared with the prior art, the scale inhibition filtration device for industrial circulating water treatment of this utility model allows the filter tube shell to be detachably connected to the circulating water pipeline, facilitating the installation and replacement of the filter tube shell; multiple scale inhibition filter elements are installed inside the filter tube shell, and through the pore size difference between two adjacent scale inhibition filter elements, the circulating water forms a sudden change in flow velocity and turbulence as it passes through different pore sizes in sequence. The change in flow velocity and the change in flow direction can promote the rapid mixing of ions in the water, avoid the precipitation of excessively high concentrations of scale-forming ions in local areas due to uneven flow velocity, reduce the crystallization probability of scale-forming ions, and scour the surface of the scale inhibition filter elements, reducing... The probability of scaling is reduced; and multiple scale-inhibiting filter elements with different pore sizes are arranged alternately to form an alternating state of "gradual change-abrupt change" in the flow rate of circulating water. This can balance the pressure drop of circulating water and improve the scale inhibition effect, avoiding extreme jumps in the flow rate of circulating water that could cause filter pore blockage. The scale-inhibiting filter elements adjust their spacing by moving two sliding blocks in the same group simultaneously. By using the different strokes of the two sliding blocks in the same group in conjunction with the rotating and telescopic adjustment components, the tilt angle of the scale-inhibiting filter elements can be changed. The spacing and tilt angle of the scale-inhibiting filter elements can be selected according to the real-time operating conditions of the circulating water. For high-risk circulating water conditions, the turbulence effect can be increased by reducing the spacing and increasing the tilt angle, thereby improving the scale inhibition and removal effect and enhancing the adaptability to changes in water quality. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the scale inhibition and filtration device for industrial circulating water treatment provided in the first state according to an embodiment of the present utility model;

[0035] Figure 2 Distribution diagram of the scale-inhibiting filter element provided in the embodiment of this utility model;

[0036] Figure 3 A schematic diagram of the scale inhibition and filtration device for industrial circulating water treatment provided in the second state according to an embodiment of the present utility model;

[0037] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0038] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0039] Figure 6 This is a structural schematic diagram of a telescopic adjustment member provided in another embodiment of the present invention.

[0040] In the diagram: 1. Filter housing; 2. Linear guide rail; 3. Waterproof cover; 4. Sliding block; 5. Mounting base; 6. Scale-inhibiting filter element; 7. Base; 8. Rotating frame; 9. First elastic gripper; 10. Mounting frame; 11. Second elastic gripper; 12. Telescopic component; 13. Guide rod; 14. Limiting block; 15. Guide block; 16. Limiting protrusion. Detailed Implementation

[0041] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0042] Please see Figures 1 to 6 The present invention provides a scale inhibition filtration device for industrial circulating water treatment. The scale inhibition filtration device for industrial circulating water treatment includes a filter housing 1, a filter assembly, a transverse movement assembly, and an angle adjustment assembly. The filter housing 1 is detachably connected to a circulating water pipeline. The filter assembly includes multiple scale inhibition filter elements 6 spaced apart within the inner cavity of the filter housing 1, with a difference in pore size between adjacent scale inhibition filter elements 6. The transverse movement assembly includes two symmetrically arranged linear guides 2, which are axially positioned on the inner wall of the filter housing 1. Each linear guide 2 has multiple sliding blocks 4, and the sliding blocks 4 on the two linear guides 2 correspond one-to-one. The angle adjustment assembly includes multiple pairs of rotating and telescopic adjusting components. Multiple rotating adjusting components are correspondingly installed on multiple sliding blocks 4 of one linear guide 2, and multiple telescopic adjusting components are correspondingly installed on multiple sliding blocks 4 of the other linear guide 2. The paired rotating and telescopic adjusting components are respectively connected to the two ends of the scale inhibition filter elements 6.

[0043] When the strokes of the two sliding blocks 4 in a pair are the same, the scale inhibitor filter element 6 is perpendicular to the axis of the filter tube shell 1, and the distance between the two adjacent scale inhibitor filter elements 6 changes; when the strokes of the two sliding blocks 4 in a pair are different, the rotating adjustment component rotates with one end of the scale inhibitor filter element 6, and the telescopic adjustment component extends to compensate for the other end of the scale inhibitor filter element 6, and the tilt angle of the scale inhibitor filter element 6 changes.

[0044] In conventional mechanical filtration, the filter element is fixed. During flow, ions in the water flow easily form scale, generating particulate impurities. At the beginning of filtration, a small number of particles smaller than the diameter of the media channel pass through and mix into the filtrate. These particles bridge at the inlet of the media channel, causing them to become blocked and deposit on the media surface, forming a filter cake. This clogs the filter panel, preventing media flow and impacting chemical production efficiency. Furthermore, over long-term filtration, changes in operating conditions and water flow environment, coupled with the filter element remaining in the same state, lead to a decrease in scale inhibition rate.

[0045] To address the aforementioned issues and improve the filtration efficiency of filter elements, a scale-inhibiting filter device for industrial circulating water treatment is proposed. This device features a filter housing 1 with flanges at both ends, connecting to the end flanges of upstream and downstream circulating water pipes. A sealing ring is installed between the two connected flanges to achieve a seal. Two linear guide rails 2 are installed symmetrically within the inner cavity of the filter housing 1, with the central axis of the filter housing 1 coinciding with the plane containing the two linear guide rails 2. Multiple sliding blocks 4 are arranged on each of the two linear guide rails 2, with the number of sliding blocks 4 on each linear guide rail 2 matching the number of scale-inhibiting filter elements 6. A corresponding set of sliding blocks 4 is connected to the two ends of the filter element, and the sliding of the sliding blocks 4 drives the filter element to move along the water flow direction.

[0046] Multiple scale-inhibiting filter elements 6 with different pore sizes are alternately arranged, causing a sudden change in flow velocity at the interface between adjacent scale-inhibiting filter elements 6 due to the change in pore size. By changing the water flow velocity between the scale-inhibiting filter elements 6, local acceleration is achieved, improving the impact effect and even triggering turbulence. When the water flows from the large-pore area to the small-pore area, the flow velocity increases sharply, resulting in a significant increase in wall shear stress. The high shear force can directly peel off the soft scale that has formed, inhibit the directional growth of hard scale crystals, and disrupt the stable deposition of crystals on the wall.

[0047] Two sliding blocks 4 connected to the same filter element are grouped together. One of the two sliding blocks 4 in the same group is equipped with a rotation adjustment component, and the other with a telescopic adjustment component. Furthermore, the adjustment components connected to multiple sliding blocks 4 on the same linear guide rail 2 are all of the same type; that is, if multiple sliding blocks 4 on one linear guide rail 2 are equipped with rotation adjustment components, then multiple sliding blocks 4 on the other linear guide rail 2 are equipped with telescopic adjustment components. Any sliding block 4 on either of the two linear guide rails 2 can be moved and adjusted independently.

[0048] During adjustment, the spacing between adjacent scale-inhibiting filter elements 6 can be adjusted according to the sliding stroke of adjacent sliding blocks 4. That is, when it is necessary to adjust the spacing of scale-inhibiting filter elements 6, the sliding blocks 4 corresponding to either scale-inhibiting filter element 6 on both sides of the spacing are activated simultaneously, so that the sliding blocks 4 move at the same time and by the same distance. And the scale-inhibiting filter element 6 is perpendicular to the axis of the filter tube shell 1 only when the line connecting two sliding blocks 4 in the same group is perpendicular to the axis of the filter tube shell 1.

[0049] The tilt angle of the scale-inhibiting filter element 6 can also be adjusted based on the different sliding strokes of the two sliding blocks 4 in the same group. This requires the cooperation of the rotary adjustment component and the telescopic adjustment component. That is, when the angle needs to be adjusted, the two sliding blocks 4 in the same group are first moved upstream synchronously. During the movement, the stroke of the sliding block 4 connected to the rotary adjustment component is greater than the stroke of the sliding block 4 connected to the telescopic adjustment component. At this time, the distance between the two sliding blocks 4 is greater than the diameter of the scale-inhibiting filter element 6. The telescopic adjustment component will compensate for the length difference with the difference in the stroke of the sliding blocks 4, while the rotary adjustment component adjusts the angle of the scale-inhibiting filter element 6, thus coordinating the adjustment of the tilt angle of the scale-inhibiting filter element 6.

[0050] like Figure 5 As shown, the adjustment of the telescopic adjustment component can be achieved by elastic stretching and growth.

[0051] The scale inhibition and filtration device for industrial circulating water treatment provided by this utility model, compared with the prior art, allows the filter housing 1 to be detachably connected to the circulating water pipeline, facilitating the installation and replacement of the filter housing 1; by the pore size difference between two adjacent scale inhibition filter elements 6, a sudden change in flow velocity is formed. The change in flow velocity promotes the rapid mixing of ions in the water, avoiding the precipitation of ions with excessively high concentrations that are prone to scaling in local areas due to uneven flow velocity, thus reducing the probability of crystallization. Multiple scale inhibition filter elements 6 are arranged alternately to achieve an alternating structure of "gradual change-sudden change-gradual change", which can balance the pressure drop and scale inhibition effect and avoid clogging caused by direct extreme jumps; the scale inhibition filter elements 6 can change the spacing and inclination angle of the scale inhibition filter elements 6 with the help of sliding blocks 4, rotating adjustment parts and telescopic adjustment parts, which can specifically improve the scale inhibition and removal effect according to the real-time operating conditions of the circulating water and enhance the adaptability to changes in water quality.

[0052] A sensor array can be added to the inlet end of the filter housing 1. This array includes a conductivity sensor, a turbidity sensor, and a calcium hardness sensor. After installation, the sensor array is connected to the control module via signal lines, enabling real-time monitoring of the conductivity, turbidity, and calcium hardness of the circulating water, providing the system with accurate water quality data. Conductivity reflects ion concentration, turbidity reflects suspended particulate content, and calcium hardness reflects scaling risk.

[0053] The control module can be housed in a control box outside the pipeline, and can contain a main control chip and other control units. The power supply cable of the control module can be connected to the electrical control cabinet for power supply. Its control terminal is connected to the sliding block 4 to transmit movement commands to the sliding block 4. The main control chip can be an ARM Cortex-A72 with an integrated NPU unit, supporting edge computing and a data processing latency of <50ms. Communication between the control module and the sensor group uses RS485, and communication with the sliding block 4 uses a CAN bus, featuring a dual redundancy design and electromagnetic interference resistance compliant with IEC 61000-4-6 (3V / m, 80MHz-1GHz).

[0054] The aforementioned linear guide rail 2 is fixed parallel to the axial direction on the inner side wall of the equipment, serving a guiding function. The sliding block 4 is installed on the linear guide rail 2, which can improve the smoothness of the movement of the scale-inhibiting filter element 6 according to the guiding property of the linear guide rail 2, and ensure the accuracy of the filter element spacing and angle adjustment.

[0055] The linear guide 2 can be made of IP68 stainless steel and can be lubricated with a waterproof lubricant to adapt to the water flow environment inside the filter housing 1. Alternatively, a retractable waterproof cover 3 can be added to the outside of the linear guide 2, placing the linear guide 2 and the sliding block 4 inside the waterproof cover 3 to prevent them from contacting the water flow.

[0056] Multiple scale-inhibiting filter elements 6 are arranged sequentially along the axial direction of the filter tube shell 1 to form a filter assembly. The total length of the multiple scale-inhibiting filter elements 6 after stacking is controlled between 20cm and 30cm. The number of scale-inhibiting filter elements 6 in the same filter assembly can be set according to actual needs. For example, the total length of the 30cm scale-inhibiting filter elements 6 can be divided into 6 5cm scale-inhibiting filter elements 6; the total length of the 25cm scale-inhibiting filter elements 6 can be divided into 5 5cm scale-inhibiting filter elements 6 or 4 6.25cm scale-inhibiting filter elements 6.

[0057] Please refer to Figure 2 The pore size difference between two adjacent scale inhibitor filter elements 6 is ≥14μm or the pore size ratio between two adjacent scale inhibitor filter elements 6 is ≥4:1.

[0058] Each filter assembly contains at least two different scale-inhibiting filter elements 6 with varying pore sizes. Taking a large-pore scale-inhibiting filter element 6 and a small-pore scale-inhibiting filter element 6 as an example, the pore size range of the large-pore scale-inhibiting filter element 6 can be selected from 15μm to 20μm, and the pore size range of the small-pore scale-inhibiting filter element 6 can be selected from 3μm to 5μm.

[0059] Large-pore filter elements are mainly used for high-speed flow guidance, maintaining water flowability and preventing excessive pressure drop; small-pore filter elements change the water flow direction through local throttling effects, forcing the formation of high Reynolds number turbulence. To achieve turbulence, large-pore and small-pore filter elements must be alternately installed, with a pore size difference ≥14μm or a pore size ratio ≥4:1. Furthermore, the tilting of the scale-inhibiting filter element 6 can increase the turbulence intensity.

[0060] Optionally, the inner wall of the filter pores of the scale inhibitor filter element 6 is provided with a spiral guide groove, and the thickness of the scale inhibitor filter element 6 is greater than or equal to the pitch length of the spiral guide groove.

[0061] The spiral guide groove has a pitch of 5cm and a depth of 2mm, which causes the water flow to generate a rotation angle of 15°-30° when passing through the scale inhibitor filter element 6. Combined with the change in pore size, it forms a spiral turbulence. CFD simulation has verified that, compared with the traditional water flow through smooth round holes, the spiral guide groove can extend the contact time between the circulating water and the scale inhibitor filter element 6 by 25% and improve the ion adsorption efficiency by 35%.

[0062] Furthermore, the filter assembly includes at least three scale-inhibiting filter elements 6, and the distance between two adjacent scale-inhibiting filter elements 6 is greater than or equal to the thickness of the scale-inhibiting filter element 6.

[0063] The scale inhibitor filter element 6 is made of Cu-Ni-Mo alloy, which has a pitting corrosion resistance coefficient of ≥32 and is suitable for water containing Cl⁻.

[0064] Cu-Ni-Mo alloys utilize a multi-element eutectic design, employing a specific ratio of elements such as copper (Cu), nickel (Ni), and molybdenum (Mo) to form a non-equilibrium crystalline phase through a eutectic reaction. The elemental composition of Cu-Ni-Mo alloys is 65%-75% copper, 20%-25% nickel, and 3%-5% molybdenum. When Cu-Ni-Mo alloys come into contact with water, they form a micro-battery structure in the aquatic environment. The difference in electrode potential between the different metals leads to the generation of a micro-current, which causes water molecules to polarize, forming an ordered dipole structure. The increased dipole moment of the polarized water molecules enhances the electrostatic attraction between them and scale-forming ions, resulting in a more tightly adsorbed structure around the ions. Scale-forming salt ions dissolved in the water attract polar water molecules, forming an ordered hydration layer around them. The micro-current further strengthens the hydration shell by causing water molecules to align in a uniform direction, preventing scale-forming salt ions from detaching from the hydration layer and combining with other ions. The scale inhibitor filter element 6 utilizes its material to polarize water molecules and form a dense hydration layer, further inhibiting the binding of scale-forming ions and achieving the scale inhibition effect.

[0065] The scale inhibitor filter element 6 undergoes solution treatment during production, with the solution temperature maintained at 1050℃ for 1 hour, followed by water quenching. This process refines the grain size to below 50μm, increases the hardness to HV200-250, and enhances the resistance to water flow impact and wear by 40%.

[0066] When the two linear guides 2 are defined as the first linear guide 2 and the second linear guide 2 respectively, the first linear guide 2 and the second linear guide 2 are symmetrically arranged. The sliding blocks 4 on the first linear guide 2 are all first sliding blocks 4, and the sliding blocks 4 on the second linear guide 2 are all second sliding blocks 4. When the first sliding blocks 4 and the second sliding blocks 4 in the same group move synchronously, they drive the scale-inhibiting filter element 6 to move. When the first sliding blocks 4 and the second sliding blocks 4 in the same group move asynchronously, the scale-inhibiting filter element 6 tilts.

[0067] Taking the example of a rotating adjustment component installed on the first sliding block 4 and a telescopic adjustment component installed on the second sliding block 4.

[0068] like Figure 4 As shown, the rotating adjustment component for adapting the scale inhibitor filter element 6 to tilt includes a base 7, a rotating frame 8, and a first elastic gripper 9. The base 7 is fixedly installed on the end face of the sliding block 4 away from the linear guide rail 2. The base 7 has two ear plates spaced apart, and the plane of the two ear plates is parallel to the axis of the filter tube shell 1. The rotating frame 8 is hinged between the two ear plates by means of a rotating shaft. The first elastic gripper 9 is located on the side of the rotating frame 8 facing the water inlet end of the filter tube shell 1. The first elastic gripper 9 is close to or away from the rotating frame 8 to abut the scale inhibitor filter element 6 against the outer wall of the rotating frame 8.

[0069] The base 7 is mounted on the surface of the first sliding block 4, and the base 7 and the first sliding block 4 can be fixed with screws. The base 7 has two ear plates, which can be L-shaped plate structures, and the L-shaped plate structures are arranged opposite each other. One of the horizontal surfaces of the L-shaped plate structures is attached to the base 7 and fixedly connected to the base 7.

[0070] The free end of the ear plate has a hinge hole, and a hinge rod passes through the hinge hole and the rotating frame 8, so that the rotating frame 8 can rotate relative to the ear plate around the hinge rod.

[0071] A first elastic gripper 9 is installed on the rotating frame 8. The first elastic gripper 9 is located on the side of the rotating frame 8 facing the water inlet pipe. The first elastic gripper 9 can move along the width direction of the rotating frame 8, that is, the first elastic gripper 9 can move away from or towards the rotating frame 8. During installation, the first elastic gripper 9 is pulled outward to move away from the rotating frame 8, and a gap will appear between the first elastic gripper 9 and the rotating frame 8. The scale inhibitor filter element 6 is placed in the gap. When the external force is removed, the first elastic gripper 9 moves towards the side closer to the rotating frame 8 and clamps the scale inhibitor filter element 6.

[0072] Specifically, the rotating frame 8 also includes a limiting groove, which is opened laterally on the rotating frame 8, with the groove opening facing the water inlet end of the filter tube shell 1; the first elastic gripper 9 is an L-shaped plate structure, the fixed end of the first elastic gripper 9 is located in the limiting groove, and has a degree of freedom along the depth direction of the limiting groove. The first elastic gripper 9 and the outer wall of the rotating frame 8 form a U-shaped slot, and the scale inhibitor filter element 6 is clamped in the slot.

[0073] The depth direction of the limiting groove on the rotating frame 8 is consistent with the width direction of the rotating frame 8. The fixed end of the first elastic gripper 9 moves along the depth direction of the limiting groove. The first elastic gripper 9 can be connected to the limiting groove through an elastic element.

[0074] Specifically, such as Figure 4 As shown, the first elastic gripper 9 includes a gripper body and a first elastic element; the gripper body includes a fixed section and an extension section connected vertically, one end of the fixed section extends into the limiting groove, and the other end of the fixed section is connected to the extension section, which is parallel to the end face of the corresponding rotating frame 8; the first elastic element connects the bottom of the limiting groove and the fixed section, and the first elastic element is always in a stretched state.

[0075] The clamp body has an L-shaped plate structure, and the fixing section of the clamp body is connected to the limiting groove by a first elastic element. The fixing section and the first elastic element can be fixed by a snap fastener or a snap-fit. The first elastic element can be fixed to the bottom of the limiting groove by a snap-fit. The first elastic element can be a spring.

[0076] In addition, to improve the fixing strength of the first elastic gripper 9, the first elastic gripper 9 can be positioned and then fixed to the rotating frame 8 again with screws.

[0077] like Figure 5 As shown, the telescopic adjustment component for adapting the scale-inhibiting filter element 6 to tilt includes a mounting base 5, a mounting frame 10, and a second elastic gripper 11. The mounting base 5 is fixedly installed on the end face of the sliding block 4 away from the linear guide rail 2. The mounting base 5 has a mounting groove along the radial direction of the filter tube shell 1, and the groove opening faces the centerline of the filter tube shell 1. The upper part of the mounting frame 10 is located inside the groove opening of the mounting groove, and the mounting frame 10 is connected to the bottom of the mounting groove by means of the telescopic component 12. The second elastic gripper 11 is located on the side of the mounting frame 10 facing the water inlet end of the filter tube shell 1. The second elastic gripper 11 is close to or away from the mounting frame 10 and is used to abut the scale-inhibiting filter element 6 against the outer wall of the mounting frame 10.

[0078] Mounting base 5 is fixed to the second sliding block 4, and the mounting base 5 and the second sliding block 4 can be fixed together with screws. Mounting base 5 can be a block structure. The telescopic member 12 provided in the mounting groove of mounting base 5 can be a spring. The end of the spring is connected to the bottom of the mounting groove and the mounting bracket 10. The upper part of the mounting bracket 10 is located in the groove opening of the mounting groove.

[0079] The mounting bracket 10 has mounting holes for connecting the second elastic gripper 11. The second elastic gripper 11 has the same structure as the first elastic gripper 9.

[0080] The mounting base 5 also includes a limiting protrusion 16 located on the side of the mounting groove near the water outlet end of the filter tube shell 1. The limiting protrusion 16 extends radially along the filter tube shell 1, and the free end of the limiting protrusion 16 extends to be flush with the end of the mounting bracket 10 away from the mounting groove.

[0081] The limiting protrusion 16 extends downwards and fits against one side of the mounting groove. When the scale-inhibiting filter element 6 is in the axial direction perpendicular to the filter housing 1, the telescopic adjustment member is located in the mounting groove, and the side wall of the telescopic adjustment member fits against the side wall of the limiting protrusion 16. When the scale-inhibiting filter element 6 is in an inclined state, the scale-inhibiting filter element 6 pulls the telescopic adjustment member, causing the telescopic member 12 to extend and pull the mounting bracket 10 downwards until it is dislodged from the mounting groove. The limiting protrusion 16 prevents the mounting bracket 10 from moving downstream under the impact of water flow and changing the tilt angle of the scale-inhibiting filter element 6.

[0082] In another embodiment, the telescopic adjustment member can use a guide rod 13 in conjunction with radial movement and in-plane rotation to achieve length compensation for the tilt of the scale-inhibiting filter element 6. For example... Figure 6 As shown, there is no need to open a mounting groove at the lower end of the mounting base 5. Instead, a guide rod 13 is provided that extends radially toward the center along the filter tube shell 1. The guide block 15 is sleeved on the guide rod 13 and slides longitudinally along the guide rod 13.

[0083] On the side of the guide block 15 facing the water inlet, a mounting bracket 10 is hinged, and the structure of the mounting bracket 10 is the same as that of the rotating bracket 8. A limiting groove and a second elastic gripper 11 structure are provided on the mounting bracket 10.

[0084] In addition, a limiting block 14 needs to be set at the free end of the guide rod 13. The limiting block 14 can prevent the guide block 15 from moving further down.

[0085] When a waterproof cover 3 is wrapped around the outside of the linear guide 2, the waterproof cover 3 can be made of rubber bellows, which is connected to the mounting base 5 / base 7. When the sliding block 4 moves, it causes the rubber bellows on both sides to contract or extend.

[0086] The tilt angle of the scale inhibitor filter element 6 is limited to 0°-30°. During the filtration process, the water quality can be identified and analyzed by the sensor on the front of the scale inhibitor filter element 6, and classified into low-risk, medium-risk, and high-risk categories based on the probability of scaling. For example, a high-risk zone is defined as when the calcium hardness is ≥600mg / L and the conductivity is ≥2000μS / cm.

[0087] When the water quality is at low risk, the spacing of the scale inhibitor filter cartridges 6 is fixed at 8cm, the tilt angle is 0°, and the test is performed every 30 minutes. When the water quality is at medium risk, the spacing of the scale inhibitor filter cartridges 6 is reduced to 5cm, the tilt angle is adjusted to 15°, and the test frequency is increased to once every 10 minutes. When the water quality is at high risk, the spacing of the scale inhibitor filter cartridges 6 is drastically reduced to 3cm, the tilt angle is 30°, and the "high-frequency scanning mode" is activated, increasing the test frequency to once every 1 minute.

[0088] This utility model provides a scale inhibition and filtration device for industrial circulating water treatment that eliminates chemical agents, avoids environmental pollution and pipeline corrosion, reduces operating costs, and extends equipment lifespan. Furthermore, the sensor array, combined with the control module algorithm, provides real-time monitoring to accurately assess scaling risk and dynamically adjust the spacing and angle of the scale inhibition filter element 6. Compared to traditional technologies, this improves the targeting and effectiveness of scale inhibition and removal, and enhances adaptability to changes in water quality. The alloy scale inhibition filter element 6 material and its staggered variable pore size design, combined with turbulence effects, increase scale inhibition efficiency from 70%-80% in traditional technologies to over 92%, significantly enhancing the ability to treat scale-forming ions, ensuring long-term stable operation of the circulating water system, improving the heat exchange efficiency of industrial equipment, and reducing energy consumption. In addition, it is suitable for maintaining stable and efficient scale inhibition and removal effects under different flow rates, temperatures, and water quality conditions, making it particularly suitable for complex industrial environments.

[0089] For example, in the condenser cooling water system and boiler feedwater pretreatment stage of a thermal power plant. By dynamically adjusting the filter element spacing, such as reducing the spacing from 5cm to 3cm under high load conditions, the turbulence effect can be enhanced, calcium and magnesium ions can be prevented from depositing on the heat exchange surface, the condenser vacuum can be improved, and coal consumption can be reduced by about 3%-5%.

[0090] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A scale inhibition filtration device for industrial circulating water treatment, characterized in that, include: The filter housing (1) is detachably connected to the circulating water pipe; The filter assembly includes a plurality of scale-inhibiting filter elements (6) spaced apart in the inner cavity of the filter housing (1), wherein the filter holes of two adjacent scale-inhibiting filter elements (6) have a pore size difference. The transverse component includes two symmetrically arranged linear guides (2), which are axially arranged on the inner wall of the filter tube shell (1). Each linear guide (2) has multiple sliding blocks (4), and the sliding blocks (4) on the two linear guides (2) correspond one-to-one. An angle adjustment assembly includes multiple pairs of rotating adjustment members and telescopic adjustment members. The multiple rotating adjustment members are correspondingly installed on multiple sliding blocks (4) of one of the linear guide rails (2), and the multiple telescopic adjustment members are correspondingly installed on multiple sliding blocks (4) of the other linear guide rail (2). The pairs of rotating adjustment members and telescopic adjustment members are respectively connected to the two ends of the scale-inhibiting filter element (6). When the two sliding blocks (4) in a pair have the same stroke, the scale-inhibiting filter element (6) is perpendicular to the axial direction of the filter housing (1), and the spacing between two adjacent scale-inhibiting filter elements (6) changes. When the strokes of the two sliding blocks (4) in a pair are different, the rotation adjustment member rotates with one end of the scale-inhibiting filter element (6), and the telescopic adjustment member extends to compensate for the other end of the scale-inhibiting filter element (6), and the tilt angle of the scale-inhibiting filter element (6) changes.

2. The scale inhibition filtration device for industrial circulating water treatment as described in claim 1, characterized in that, The pore size difference between two adjacent scale-inhibiting filter elements (6) is ≥14μm or the pore size ratio between two adjacent scale-inhibiting filter elements (6) is ≥4:

1.

3. The scale inhibition filtration device for industrial circulating water treatment as described in claim 1, characterized in that, The inner wall of the filter hole of the scale-inhibiting filter element (6) is provided with a spiral guide groove, and the thickness of the scale-inhibiting filter element (6) is greater than or equal to the pitch length of the spiral guide groove.

4. The scale inhibition filtration device for industrial circulating water treatment as described in any one of claims 1 to 3, characterized in that, The filter assembly includes at least three scale-inhibiting filter elements (6), and the distance between two adjacent scale-inhibiting filter elements (6) is greater than or equal to the thickness of the scale-inhibiting filter element (6).

5. The scale inhibition filtration device for industrial circulating water treatment as described in claim 1, characterized in that, The rotation adjustment component includes: The base (7) is fixedly installed on the end face of the sliding block (4) away from the linear guide (2); the base (7) has two ear plates spaced apart, and the planes of the two ear plates are parallel to the axis of the filter tube shell (1); The rotating frame (8) is hinged between the two ear plates by means of a rotating shaft; The first elastic gripper (9) is located on the side of the rotating frame (8) facing the water inlet end of the filter housing (1). The first elastic gripper (9) is close to or away from the rotating frame (8) and is used to abut the scale inhibitor filter element (6) against the outer wall of the rotating frame (8).

6. The scale inhibition filtration device for industrial circulating water treatment as described in claim 5, characterized in that, The rotating frame (8) also includes: The limiting groove is horizontally opened on the rotating frame (8), and the groove opening faces the water inlet end of the filter tube shell (1). The first elastic gripper (9) is an L-shaped plate structure. The fixed end of the first elastic gripper (9) is located in the limiting groove and has a degree of freedom along the depth direction of the limiting groove. The first elastic gripper (9) and the outer side wall of the rotating frame (8) form a U-shaped slot, and the scale-inhibiting filter element (6) is clamped in the slot.

7. The scale inhibition filtration device for industrial circulating water treatment as described in claim 6, characterized in that, The first elastic gripper (9) includes: The clamp includes a fixed section and an extension section connected vertically. One end of the fixed section extends into the limiting groove, and the other end of the fixed section is connected to the extension section. The extension section is parallel to the end face of the corresponding rotating frame (8). The first elastic element connects the bottom of the limiting groove and the fixed section, and the first elastic element is always in a stretched state.

8. The scale inhibition filtration device for industrial circulating water treatment as described in claim 1, characterized in that, The telescopic adjustment component includes: Mounting base (5) is fixedly installed on the end face of the sliding block (4) away from the linear guide rail (2). The mounting base (5) has a mounting groove along the radial direction of the filter tube shell (1), and the groove opening faces the centerline direction of the filter tube shell (1). Mounting bracket (10), the upper part of which is located inside the groove of the mounting slot, and the mounting bracket (10) is connected to the bottom of the mounting slot by means of a telescopic member (12); The second elastic gripper (11) is located on the side of the mounting bracket (10) facing the water inlet end of the filter housing (1). The second elastic gripper (11) is close to or away from the mounting bracket (10) and is used to abut the scale inhibitor filter element (6) against the outer wall of the mounting bracket (10).

9. The scale inhibition filtration device for industrial circulating water treatment as described in claim 8, characterized in that, The mounting base (5) also includes: A limiting protrusion (16) is located on the side of the mounting groove near the water outlet end of the filter tube shell (1). The limiting protrusion (16) extends radially along the filter tube shell (1), and the free end of the limiting protrusion (16) extends to be flush with the end of the mounting bracket (10) away from the mounting groove.

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