Ultrapure water EDI (electrodeionization) equipment

Abstract

The invention belongs to the technical field of water treatment, and particularly relates to ultrapure water EDI (electrodeionization) equipment which comprises a support and a plurality of module bodies linearly arranged on the support, a front coaming can rotate between a vertical position and a horizontal position, a module maintenance operation space is switched to an external open platform from the inside of the support, and the module maintenance operation space is switched to an external open platform. According to the design, the risks of module collision and interface damage caused by narrow operation space are effectively eliminated, the dash panel is in a vertical state during equipment operation to form a compact enclosure structure, the dash panel is converted into a horizontal platform during maintenance, an extra maintenance channel does not need to be reserved in the layout in advance, and the maintenance cost is reduced. In addition, a set of composite bearing and guiding system is constructed through guiding matching of a first roller and a rolling groove, positioning stopping of a limiting groove and auxiliary supporting of a second roller, and a drawing plate and the module are fixed in an inserted connection mode, so that the module always keeps single-degree-of-freedom linear motion in the moving-out or moving-in process, and the service life of the module is prolonged. The heavy module is ensured to move stably and have a straight track.

Description

Technical Field

[0001] This invention belongs to the field of water treatment technology, and in particular relates to an ultrapure water EDI electro-desalination device. Background Technology

[0002] Ultrapure water electro-deionization equipment is one of the core components of modern industrial water treatment systems. In practical applications, in order to meet the water production requirements and save space, multiple standardized square EDI modules are usually installed side by side in a compact integrated bracket.

[0003] However, while this high-density layout saves floor space, it exposes significant shortcomings in the mechanical design and maintainability of existing technologies: 1. In pursuit of a high-density layout, the gaps between modules and adjacent units and support structures are compressed to the limit. Maintenance personnel have to perform clumsy manual pulling and installation operations in extremely narrow gaps. Heavy modules are difficult to move out smoothly and are prone to collisions with surrounding precision equipment, causing irreversible physical damage to the fluid interface connectors of the modules themselves and their adjacent units. Moreover, even though extra maintenance gaps, much larger than the physical dimensions of the modules themselves, are reserved between modules and between modules and the side plates of the support, to facilitate the entry of tools such as screwdrivers and wrenches and manual operation, these extra maintenance gaps are idle during operation, which is essentially a passive waste of space. This seriously weakens the advantages brought by the high-density layout and results in a large overall support system with low space utilization efficiency. 2. When installing a new module, maintenance personnel need to blindly align and insert multiple precision water interfaces on the back of the heavy module with the corresponding interfaces on the bracket motherboard under limited field of vision and operating angle. This process requires extremely high alignment accuracy, but in actual operation, there is a lack of effective guidance and fault tolerance mechanism. Even a small angle or position deviation will cause hard collision of the interfaces, resulting in bent pins, sheared seals or scratched shells, making the installation process inefficient. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an ultrapure water EDI electro-desalination device.

[0005] To achieve the above objectives, the technical solution of this invention is as follows: This invention discloses an ultrapure water EDI electro-desalination device, comprising a support frame and multiple module bodies linearly arranged on the support frame. Each module body is provided with a limit rod, a spiral rod is provided at the rear side of each module body, and water inlets are provided at both the front and rear ends of each module body. The device also includes: A pull-out assembly, mounted on the bracket, is used to support and guide the module body out of its working position; A docking component, disposed on the pull-out component, is used to automatically guide and achieve precise docking and sealing disengagement between the water interface of the module body and the main pipeline interface of the equipment during the movement of the pull-out component.

[0006] Furthermore, the pull-out assembly includes: A support plate is fixedly installed on the bracket, forming the mounting base of the module body; The rear panel is vertically fixed at the rear end of the support plate, and one end of the spiral rod of the module body slides through the rear end of the rear panel. A pull-out plate is slidably connected to the top of the support plate via a first slide rail. The top of the pull-out plate has a pull-out hole for inserting and engaging with a limiting rod on the module body to limit and support the module body in the horizontal plane. The front bulkhead is rotatably connected to the front end of the support plate, allowing the front bulkhead to rotate between a vertical position and a horizontal position. The front panel is provided with a slide rail groove; The locking plates, numbered in at least two sets, are fixedly installed on the front end face of the module body, and the front panel has a locking groove corresponding to the position of the locking plate; A bolt rod is rotatably connected to the front bulkhead, one end of which passes through the locking groove and engages with a threaded hole on the locking plate.

[0007] Furthermore, the bottom of the pull-out plate is equipped with a plurality of first rollers, and a roller groove is formed on the support plate and the front panel to guide the first rollers to roll. Upper plates are installed at the left and right ends of the pull-out plate, and at least one second roller is installed at the bottom of the upper plate.

[0008] Furthermore, a limiting groove for limiting the first roller is provided on the inner sidewall of the groove, and an arc-shaped transition portion is formed at the connection between the limiting groove and the groove.

[0009] Furthermore, the bracket has a movable groove at the outlet end of the support plate, and a plurality of reset spring rods are installed in the movable groove. A reset plate is slidably connected to the top of the reset spring rods, and a triangular plate is installed on the top of the reset plate. Limiting posts are installed at the left and right ends of the rotation axis of the front panel on the support plate. A triangular groove is opened at one end of the limiting post and the end of the triangular plate slides through the bracket and fits tightly in the triangular groove.

[0010] Furthermore, the front end of the upper plate is provided with a protruding structure, and a handle groove is provided inside the protruding structure.

[0011] Furthermore, the second roller located at the front end of the upper plate protrudes from the front of the upper plate and is in close contact with one end face of the front bulkhead.

[0012] Furthermore, the rear panel and the front panel have circular holes respectively provided at the installation positions of the water interfaces of the corresponding module bodies, and the bottom of the circular holes at the rear end has an axially extending telescopic hole. The docking assembly includes: An expansion spring, one end of which is installed inside a telescopic hole; The limiting plate is slidably connected in the telescopic hole through the slide rail and is fixedly connected to the other end of the expansion spring; The limiting ring is installed laterally inside the limiting plate and inside the circular hole; The external interface is installed at the end of the limiting ring furthest from the water interface; A sealing ring is installed on the inner wall of the outer interface to ensure a tight fit against the outer wall of the water interface. The water interface located at the rear of the module body has a horizontal end structure, while the water interface located at the front of the module body has a micro-arc structure.

[0013] Furthermore, two sets of L-shaped frames are symmetrically installed on the left and right ends of the rear panel. The vertical parts of the two sets of L-shaped frames are provided with slidably connected compression spring rods. The rear ends of each compression spring rod are connected to a horizontal connecting plate. An active plate is installed at the rear end of the upper plate corresponding to one end of the compression spring rod.

[0014] Furthermore, the docking assembly also includes a spiral ring, a pressing roller, and a limiting collar. The outer interface has an external thread, and the spiral ring is threaded to the outer interface. The outer interface has a rolling hole along the axial direction near the outer side of the limiting collar. The pressing roller is slidably connected inside the rolling hole and partially extends out of the rolling hole. The limiting collar is fixedly installed at one end of the rolling hole corresponding to the water interface and is used to cooperate with the pressing roller for limiting.

[0015] Compared with existing technologies, the ultrapure water EDI electro-desalination equipment described in this invention has the following advantages: 1. This invention allows the front panel to rotate between vertical and horizontal positions, switching the module maintenance operation space from inside the support frame to an external open platform. This design effectively eliminates the risk of module collisions and interface damage caused by narrow operating space. When the equipment is running, the front panel is in a vertical state, forming a compact enclosure structure. During maintenance, it transforms into a horizontal platform, eliminating the need to reserve additional maintenance passages in the layout beforehand. This ensures both the compactness of the equipment and convenient maintenance of the modules. Furthermore, this invention constructs a composite load-bearing and guiding system through the guiding cooperation of the first roller and the roller groove, the positioning stop of the limiting groove, and the auxiliary support of the second roller. The pull-out plate is fixed to the module by plugging it in, ensuring that the module maintains a single degree of freedom linear motion during the movement of the module in or out. This ensures that the heavy module moves smoothly and along a straight trajectory, avoiding the shaking and positional deviation that easily occur in traditional manual handling. It also reduces the physical burden and operational difficulty for operators, making the module replacement process more labor-saving, safe, and smooth.

[0016] 2. This invention incorporates a docking assembly within the front and rear bulkheads. This assembly achieves radial rigid positioning of the interface via a limiting ring and provides axial elastic floating using an expansion spring. Combined with the miniature arc-shaped structure of the water interface at the front of the module, it guides the interface insertion during the rotation of the front bulkhead. This design enables the water interface to adaptively complete alignment and sealing connection during module insertion and bulkhead rotation, transforming the traditional docking operation, which relies on manual experience and feel, into a repeatable mechanized process. This avoids damage caused by hard collisions at the interface, improves the consistency of the sealing connection, and enhances the reliability and efficiency of maintenance operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a rear view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the singular module body of the present invention; Figure 4 This is a schematic diagram of the module body of the present invention; Figure 5 This is a schematic diagram of the pull-out component of the present invention; Figure 6 This is a schematic diagram of the front panel of the present invention in a horizontal state; Figure 7 This is an exploded view of the pull-out plate and module body of the present invention; Figure 8 This is a schematic diagram of the support plate of the present invention; Figure 9 This is a longitudinal cross-sectional view of the bracket of the present invention; Figure 10 This is a schematic diagram of the docking components of the present invention; Figure 11 yes Figure 10 A magnified view of part A in the image; Figure 12 This is an exploded view of the docking assembly of the present invention; Figure 13 This is a longitudinal cross-sectional view of the docking component of the present invention.

[0018] The markings in the diagram are as follows: 1. Bracket; 10. Module body; 11. Water interface; 12. Limiting rod; 13. Screw rod; 2. Pull-out assembly; 21. Support plate; 22. Rear panel; 220. Round hole; 2200. Telescopic hole; 23. Pull-out plate; 230. Pull-out hole; 24. Front panel; 240. Slide rail groove; 241. Locking groove; 25. Locking plate; 26. Bolt rod; 211. First roller; 2110. Roll groove; 2111. Limiting groove; 212. Upper plate; 213. Second roller; 221. Movable groove; 222. Return spring rod; 223. Return plate; 224. Triangular plate; 225. Limiting post; 226. Concave frame; 231. L-shaped frame; 232. Compression spring rod; 233. Connecting plate; 234. Active plate; 3. Connecting assembly; 31. Expansion spring; 32. Limiting plate; 33. Limiting ring; 34. External interface; 35. Sealing ring; 311. Spiral ring; 312. Roller hole; 313. Extrusion roller; 314. Limiting collar. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0020] See Figures 1-5As shown, this invention provides an ultrapure water EDI electro-desalination device, including a support 1 and multiple module bodies 10 linearly arranged on the support 1. Each module body 10 is provided with a limit rod 12, a spiral rod 13 is provided on the rear side of each module body 10, and water inlets 11 are provided at both the front and rear ends of each module body 10. The device also includes a pull-out assembly 2, mounted on the support 1, used to support and guide the module bodies 10 out of their working position. The pull-out assembly 2 includes: a support plate 21, fixedly mounted on the support 1, forming the mounting base of the module bodies 10; a rear panel 22, vertically fixedly mounted on the rear end of the support plate 21, with one end of the spiral rod 13 of the module body 10 sliding through the rear end of the rear panel 22; and a pull-out plate 23, slidably connected to the top of the support plate 21 via a first slide rail, with a pull-out hole 2 on the top of the pull-out plate 23. 30, used to engage with the limiting rod 12 on the module body 10 to limit and support the module body 10 in the horizontal plane; front panel 24, rotatably connected to the front end of the support plate 21, so that the front panel 24 can rotate between a vertical position and a horizontal position. When in the vertical position, the support plate 21, rear panel 22 and front panel 24 together form a three-sided U-shaped fixing structure to surround and position the module body 10; the front panel 24 is provided with a slide rail groove 240; locking plates 25, at least two sets, are fixedly installed on the front end face of the module body 10, and the front panel 24 is provided with a locking groove 241 corresponding to the position of the locking plate 25; bolt rod 26, rotatably connected to the front panel 24, one end of the bolt rod 26 passes through the locking groove 241 and engages with the threaded hole on the locking plate 25.

[0021] It should be noted that when the module body 10 needs to be replaced, the bolt rod 26 is loosened to release its axial locking force on the locking plate 25. Then, the front panel 24 is rotated from its vertical wall state to be laid flat around the axial direction downward or forward until it is coplanar with the horizontal support plate 21. The operator pulls it out smoothly along the preset slide rail groove 240 on the front panel 24 using the pull plate 23. Since the module body 10 is inserted into the pull plate 23 through the limit rod 12, the module body 10 is pulled out horizontally as a whole and finally sits completely on the open platform formed by the front panel 24. The slide rail groove 240 is aligned or connected with the first slide rail on the support plate 21 in space, ensuring that the movement of the module body 10 from the working position to the maintenance position is a linear movement with a single degree of freedom, no lifting, and no side sway, eliminating the risk of shaking and bumping that is unavoidable when manually transporting it in the crowded equipment bracket 1. After maintenance, push the pull-out plate 23 along with the module body 10 back to its original position on the support plate 21 along the slide rail groove 240. Then lift the front panel 24 back to the vertical position. During this process, the locking plate 25 installed at the front end of the module body 10 will naturally fall into the corresponding locking groove 241 inside the front panel 24. It should be noted that the locking plate 25 and the locking groove 241 are designed with a micro-arc shape, and its curvature is coaxial with the rotation axis of the front panel 24. In the final stage of rotation, the arc-shaped outer edge of the locking plate 25 will make a sliding contact with the entrance of the locking groove 241, rather than a right-angle collision. When the locking plate 25 falls into the groove, it can restrict all lateral degrees of freedom of the module body 10 on the horizontal plane and automatically correct the slight positional deviation of the module body 10 that may be caused by the push-back action. Finally, tighten the bolt rod 26 so that its threaded part engages with the locking plate 25 and generates a strong axial tensile force. The front panel 24 of this invention can be converted from a vertical sidewall into a horizontal working platform, transferring maintenance operations from the narrow support 1 to an open space, enabling the equipment layout to be extremely compact and significantly improving space utilization. The module body 10 can be moved out linearly with a single degree of freedom through a slide rail system, avoiding the swaying and collision risks in traditional methods. The unique design of the micro-arc locking plate 25 and locking groove 241 automatically completes fault-tolerant alignment when the front panel 24 is erected. Combined with the locking of the bolt rod 26, the traditional complex blind docking is simplified into a standardized operation of pushing in and tightening, greatly reducing the dependence on personnel skills and achieving a unity of equipment compactness, maintenance convenience and operational safety.

[0022] See Figures 6-8 As shown, the bottom of the pull-out plate 23 is equipped with a plurality of first rollers 211 and a roller groove 2110 formed on the support plate 21 and the front panel 24 for guiding the first rollers 211 to roll. The left and right ends of the pull-out plate 23 are equipped with upper plates 212, and at least one second roller 213 is installed at the bottom of the upper plate 212.

[0023] It should be noted that during disassembly, the pull-out plate 23 is pulled out, and its bottom first roller 211 rolls within the fixed roller groove 2110 of the support plate 21 and the front bulkhead 24, bearing the main weight and providing precise linear guidance to ensure that the module body 10 moves smoothly out of the bracket 1. When the pull-out plate 23 is about to enter the area of ​​the front bulkhead 24, the second roller 213 installed at the bottom of the upper plates 212 on both sides of the pull-out plate 23 begins to roll and contact the upper surface of the front bulkhead 24. At this time, a state is formed in which the first roller 211 and the second roller 213 jointly support the module body 23. The pull-out plate 23 can maintain a smooth, low-friction movement in the area of ​​the front panel 24 where there is no lateral roller groove 2110 constraint until it is fully pulled out. The installation process is the reverse. Through the cooperation of the first roller 211 and the second roller 213, precise lateral constraint is provided for most of the entire pull-out stroke, which effectively prevents the module body 10 from getting stuck, shaking or scratching the side wall of the bracket 1 due to left and right swaying during the push-pull process. This protects the module body 10 and the bracket 1, making the entire pull-out process feel consistent, easy and effortless.

[0024] See Figure 8 As shown, a limiting groove 2111 for limiting the first roller 211 is provided on the inner side wall of the roller groove 2110, and an arc-shaped transition part is formed at the connection between the limiting groove 2111 and the roller groove 2110.

[0025] It should be noted that when the pull plate 23 is pushed back to the fully closed position, the axle of the first roller 211 reaches the end of the limit groove 2111 and is physically blocked. This provides a precise and repeatable mechanical stop for the pull plate 23, ensuring that the position of the module body 10 is completely consistent after each installation. This is crucial for the precise docking of the water interface 11 of the docking component 3. It is worth noting that the limiting groove 2111 is set as a semi-circular arc shape structure. The semi-circular arc shape of the limiting groove 2111 structure forms a larger and more uniform contact surface with the cylindrical surface of the shaft end of the first roller 211. This can transmit lateral force and impact force more dispersedly, reduce stress concentration, effectively protect the axle and bearing of the first roller 211, and significantly improve the durability and reliability of the first roller 211. The curved groove guide design reduces the initial difficulty of the push-in operation, and can be successfully introduced even if there is a slight deviation in the initial alignment, making the operation faster.

[0026] See Figure 6 and Figure 9As shown, the bracket 1 has a movable groove 221 at the outlet end of the support plate 21. Several reset spring rods 222 are installed in the movable groove 221. The top of the reset spring rods 222 is slidably connected to a reset plate 223. A triangular plate 224 is installed on the top of the reset plate 223. Limiting posts 225 are installed at the left and right ends of the rotation axis of the support plate 21 on the front panel 24. A triangular groove is opened at one end of the limiting post 225 on the triangular plate 224. One end of the triangular plate 224 slides through the bracket 1 and is tightly attached to the triangular groove.

[0027] It should be noted that when the front panel 24 is in the horizontally open state, the limiting post 225, which is rigidly connected to its pivot, rotates accordingly. Its smooth cylindrical surface continuously presses the tip of the triangular plate 224 downward. This downward pressure, through the reset plate 223, continuously compresses the reset spring rod 222, so that it is in a state of fully stored elastic potential energy. When the operator rotates the front panel 24 upward, the limiting post 225 rotates synchronously. At the instant the rotation reaches a near-vertical position, the triangular groove on the limiting post 225 rotates to a position directly opposite the tip of the triangular plate 224. At this moment, the cylindrical surface that was originally pressing down on the triangular plate 224 suddenly disappears, the downward constraint force on the triangular plate 224 is released, and the previously compressed return spring rod 222 immediately releases its stored elastic potential energy, pushing the return plate 223 and the triangular plate 224 upward, forming a self-locking mechanism between the triangular plate 224 and the limiting post 225. The locking action of this invention is bound to and automatically completed with the necessary operation of raising the front panel 24, realizing locking as soon as it is in position, avoiding the safety hazards caused by the operator forgetting to lock due to negligence, and also simplifying the operation process.

[0028] When unlocking is required, the operator steps on the concave frame 226 with their foot, converting the downward foot force into direct downward pressure on the reset plate 223. This pressure must overcome the elasticity of the reset spring rod 222, forcing the triangular plate 224 to exit vertically from the triangular groove. Once the tip of the triangular plate 224 is completely disengaged from the triangular groove, the front panel 24 can freely rotate back to the horizontal position under gravity or manual force. In the initial stage of rotation, the cylindrical surface of the limit post 225 contacts and presses down on the triangular plate 224 again, recompressing the reset spring rod 222 to store energy for the next locking cycle. In maintenance scenarios, the operator's hands are usually busy supporting the heavy module body 10 or using tools, and their vision and hand resources are highly strained. Foot operation does not require changing the tasks of the hands or bending over, realizing parallel operation and greatly improving work efficiency and safety.

[0029] The reset spring rod 222, reset plate 223, triangular plate 224 and concave frame 226 are all built into the movable slot 221 of the bracket 1, with only the limit post 225 exposed. This prevents accidental bumps from damaging the mechanism or causing accidental locking, and also avoids the risk of pinching injury, making the mechanism both space-saving and safe.

[0030] It is worth noting that the top of the triangle plate 224 is slidably connected with micro-balls. The function of the micro-balls is to change the sliding friction between the triangle plate 224 and the limiting post 225 into rolling friction, thereby reducing frictional resistance and wear.

[0031] See Figures 7-8 As shown, the front end of the upper plate 212 is provided with a protruding structure, the core function of which is to protect the module body 10. This prevents the front end of the module body 10 from directly colliding or scratching with other parts of the equipment during the pulling and resetting process, thus protecting the outer shell of the module body 10. The protruding structure has a handle groove inside, the core function of which is to provide a convenient force application point for the pulling operation of the pull plate 23, making it easier for the operator to grip and exert force, and making it easier to push or pull the pull plate 23, thereby moving the module body 10 out or resetting, reducing the intensity of operation and improving the convenience of replacing the module body 10.

[0032] See Figures 7-8 As shown, the second roller 213 located at the front end of the upper plate 212 protrudes from the front of the upper plate 212 and is in close contact with one end face of the front panel 24.

[0033] It should be noted that the core function of the above design is to protect the upper plate 212 from damage. Due to the action of the compression spring rod 232, the front end of the pull-out plate 23 usually extends out of the support plate 21. When the front panel 24 is rotated, the protruding second roller 213 will first contact the front panel 24, avoiding direct friction and collision between the front panel 24 and the upper plate 212, thereby protecting the structure of the upper plate 212.

[0034] See Figures 10-13 As shown, the rear panel 22 and the front panel 24 are respectively provided with circular holes 220 at the installation positions of the water interface 11 of the module body 10. The bottom of the circular hole 220 at the rear end is provided with an axially extending telescopic hole 2200. The docking component 3 is set on the pull-out component 2 and is used to automatically guide and realize the precise docking and sealing disengagement of the water interface 11 of the module body 10 and the main pipeline interface of the equipment during the movement of the pull-out component 2. The docking component 3 includes: an expansion spring 31, one end of which is installed inside the telescopic hole 2200; a limiting plate 32, which is slidably connected in the telescopic hole 2200 through a slide rail and is fixedly connected to the other end of the expansion spring 31; a limiting ring 33, which is installed laterally inside the limiting plate 32 and inside the circular hole 220; an outer interface 34, which is installed at the end of the limiting ring 33 away from the water interface 11; and a sealing ring 35, which is installed on the inner wall of the outer interface 34 and is used to tightly fit the outer wall of the water interface 11. See Figure 10 As shown, the water interface 11 located at the rear end of the module body 10 has a horizontal end structure, and the water interface 11 located at the front end of the module body 10 has a micro arc-shaped structure.

[0035] It should be noted that after the maintenance of the module body 10 is completed, the pull plate 23 drives the module body 10 to push back to the working position of the support plate 21 along the slide rail, and the front panel 24 rotates to the vertical locking position simultaneously. During this process, the front and rear water interfaces 11 of the module body 10 are sequentially adapted and connected to the docking component 3. The core actions are as follows: When the module body 10 is pushed back horizontally by the pull plate 23, the first roller 211 moves along the roller groove 2110 to the end of the limiting groove 2111 and generates a settling motion. The horizontal water interface 11 at the rear end of the module body 10 is simultaneously inserted into the round hole 220 of the rear panel 22. It first contacts the limiting ring 33 and is radially limited to ensure that the water interface 11 and the outer interface 34 are coaxially aligned. Then, the continuous pushing force of the pull plate 23 causes the limiting plate 32 to slide axially along the telescopic hole 2200, compressing the expansion spring 31. Under the elastic force, the outer interface 34 fits against the water interface 11. Finally, the sealing ring 35 on the inner wall of the outer interface 34 fits tightly against the outer wall of the water interface 11, completing the end sealing connection. During the rotation of the front panel 24 from horizontal to vertical, the outer interface 34 of its internal docking component 3 rotates in an arc shape with the front panel 24. The water interface 11 of the micro arc structure at the front end of the module body 10 forms an arc sliding fit with the outer interface 34 without right-angle collision. When the front panel 24 rotates to the vertical position, the water interface 11 naturally engages with the limiting ring 33 to achieve radial limiting. The elastic rebound force of the expansion spring 31 pushes the limiting plate 32, so that the outer interface 34 and the arc-shaped water interface 11 at the front end of the module body 10 are precisely fitted together, and the sealing ring 35 completes the front sealing docking.

[0036] The docking component 3 of this invention restricts the lateral and radial degrees of freedom of the water interface 11 by the radial hard limit of the limiting ring 33. Regardless of the slight positional deviation when the module body 10 is pushed back, or the arc trajectory when the front panel 24 rotates, it can ensure that the water interface 11 and the outer interface 34 are coaxially docked. This eliminates the alignment difficulty of traditional manual blind docking, reduces the dependence on the operator's skills, and utilizes the axial elastic extension and contraction of the expansion spring 31 to convert the rigid thrust of the module body 10 docking into a flexible fitting force, avoiding the collision and deformation of the water interface 11 and the outer interface 34 caused by hard contact, and protecting the precision fluid interface structure of the module body 10 and the main pipeline.

[0037] See Figure 7 As shown, two sets of L-shaped frames 231 are symmetrically installed on the left and right ends of the rear panel 22. The vertical parts of the two sets of L-shaped frames 231 are provided with slidably connected compression spring rods 232. The rear ends of each compression spring rod 232 are connected to a horizontal connecting plate 233. An active plate 234 is installed at the rear end of the upper plate 212 corresponding to one end of the compression spring rod 232.

[0038] It should be noted that when the pull-out plate 23 moves the module body 10 close to the rear panel 22 and is about to reach the preset working position, the active plate 234 at the rear end of the upper plate 212 first contacts the compression spring rod 232 and applies a backward thrust. The compression spring rod 232 simultaneously drives the connecting plate 233 to move backward, and the compression spring rod 232 simultaneously retracts backward along the sliding structure of the vertical part of the L-shaped frame 231, converting the kinetic energy of the module body 10 returning to its original position into the elastic potential energy of the compression spring rod 232, thereby buffering the impact force. Until the compression spring rod 232 retracts to the preset stroke, the module body 10 reaches the designated working position. At this time, the water interface 11 at the rear end of the module body 10 and the external interface 34 inside the rear panel 22 are flexibly connected, avoiding rigid collisions between the module body 10 and the rear panel 22, and between the water interface 11 and the external interface 34.

[0039] It is worth noting that when disassembling the module body 10, the compression spring rod 232 releases the stored elastic potential energy, which can simultaneously drive the active plate 234 and the upper plate 212 to move forward, thereby driving the pull-out plate 23 to move forward, so that the first roller 211 at the bottom of the pull-out plate 23 automatically disengages from the limiting groove 2111. This can easily release the limiting constraint of the pull-out plate 23 without the operator applying additional pushing and pulling pressure, reducing the intensity of operation, and avoiding component jamming and wear caused by manual forced pushing and pulling, thus improving the convenience and safety of disassembly operation.

[0040] See Figures 11-13 As shown, the docking assembly 3 also includes a spiral ring 311, a pressing roller 313, and a limiting collar 314. The outer interface 34 is provided with an external thread. The spiral ring 311 is threadedly connected to the outer interface 34. The outer interface 34 is provided with a rolling hole 312 along the axial direction near the outer side of the limiting collar 33. The pressing roller 313 is slidably connected to the inside of the rolling hole 312 and partially extends out of the rolling hole 312. The limiting collar 314 is fixedly installed at one end of the water interface 11 corresponding to the rolling hole 312 and is used to cooperate with the pressing roller 313 for limiting.

[0041] It should be noted that after the water interface 11 and the outer interface 34 are connected by the docking assembly 3 and the sealing ring 35 achieves a sealed fit, the spiral ring 311 is rotated to move spirally along the external thread of the outer interface 34 toward the limiting ring 33. During the movement of the spiral ring 311, the inner wall pressing part extends out of the pressing roller 313 of the rolling hole 312, forcing the pressing roller 313 to slide along the axial direction of the rolling hole 312 toward the water interface 11 until the end of the pressing roller 313 abuts against the limiting sleeve 314 on the water interface 11, and the spiral ring 311 stops rotating. At this time, under the pressing action of the spiral ring 311, the pressing roller 313 continues to apply radial pressure to the limiting sleeve 314, firmly locking the water interface 11 and the outer interface 34, avoiding slight loosening or separation of the interface caused by equipment vibration or slight displacement of the module body 10, and further improving the docking effect.

[0042] Working principle: When using an ultrapure water EDI electro-deionization device, if the module body 10 needs maintenance, first loosen the bolt rod 26 to unlock the locking plate 25, step on the concave frame 226 to disengage the triangular plate 224 from the limiting post 225, release the self-locking of the front panel 24 and rotate it to form an open platform. At the same time, compress the spring rod 232 to release potential energy, which drives the pull plate 23 to move forward and disengage the first roller 211 from the limiting groove 2111. The operator pulls the pull plate 23 through the handle groove. The first roller 211 bears the weight and guides. When it is about to enter the area of ​​the front panel 24, the second roller 213 cooperates to support and prevent shaking and scratching. The convex structure protects the module body 10, and the second roller 213 protects the upper plate 212 until the module body 10 is completely removed. After maintenance, push the pull plate 23 to reset, the active plate 234 squeezes and compresses the spring rod 232 to buffer the impact force, the first roller 211 enters the semi-circular limit groove 2111 through the arc transition part to position, ensuring that the module positions are consistent, rotate the front panel 24 to vertical, the limit post 225 and the triangular plate 224 automatically lock, the locking plate 25 and the arc locking groove 241 are adapted to correct the deviation, and tighten the bolt rod 26 to complete the locking; The core of the docking component 3 is to achieve precise docking and sealing of the water interface 11. When the module body 10 is reset, the rear horizontal water interface 11 is inserted into the round hole 220 of the rear panel 22, the limiting ring 33 is aligned with the outer interface 34, the squeezing limiting plate 32 compresses the expansion spring 31, and the sealing ring 35 fits and seals. The front arc-shaped water interface 11 rotates with the front panel 24 and adapts to the arc shape of the outer interface 34, without collision and with precise fit. After docking, the rotating spiral ring 311 squeezes the roller 313 to press against the limiting sleeve 314 to lock the interface and prevent loosening. When disassembling, the spiral ring 311 is rotated in the opposite direction, and the interface moves out and resets with the module body 10. The two work together to realize convenient replacement of the module body 10 and reliable docking of the interface, reduce the difficulty of operation and protect the equipment components.

[0043] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An ultrapure water EDI electro-desalination device, comprising a support (1) and multiple module bodies (10) linearly arranged on the support (1), wherein a limit rod (12) is provided on the module body (10), a spiral rod (13) is provided on the rear side of the module body (10), and water inlets (11) are provided at both the front and rear ends of the module body (10), characterized in that, Also includes: A pull-out assembly (2) is provided on the bracket (1) to support and guide the module body (10) to move out of the working position; The docking component (3) is set on the pull-out component (2) and is used to automatically guide and realize the precise docking and sealing disengagement of the water interface (11) of the module body (10) and the main pipeline interface of the equipment during the movement of the pull-out component (2).

2. The ultrapure water EDI electro-desalination equipment according to claim 1, characterized in that, The pull-out component (2) includes: The support plate (21) is fixedly installed on the bracket (1) to form the mounting base of the module body (10); The rear panel (22) is vertically fixed at the rear end of the support plate (21), and one end of the spiral rod (13) of the module body (10) slides through the rear end of the rear panel (22); A pull-out plate (23) is slidably connected to the top of the support plate (21) via a first slide rail. A pull-out hole (230) is provided on the top of the pull-out plate (23) for insertion and cooperation with the limiting rod (12) on the module body (10) to limit and support the module body (10) in the horizontal plane. The front panel (24) is rotatably connected to the front end of the support plate (21), so that the front panel (24) can rotate between a vertical position and a horizontal position; The front panel (24) is provided with a slide rail groove (240). Locking plates (25), at least two sets, are fixedly installed on the front end face of the module body (10), and locking grooves (241) are provided on the front panel (24) corresponding to the locking plates (25). A bolt rod (26) is rotatably connected to the front bulkhead (24), one end of which passes through the locking groove (241) and engages with a threaded hole on the locking plate (25).

3. The ultrapure water EDI electro-desalination equipment according to claim 2, characterized in that, The bottom of the pull-out plate (23) is equipped with a plurality of first rollers (211) and a roller groove (2110) opened on the support plate (21) and the front panel (24) for guiding the first rollers (211) to roll. The left and right ends of the pull-out plate (23) are equipped with upper plates (212), and the bottom of the upper plate (212) is equipped with at least one second roller (213).

4. The ultrapure water EDI electro-desalination equipment according to claim 3, characterized in that, The inner sidewall of the groove (2110) is provided with a limiting groove (2111) for limiting the first roller (211), and an arc-shaped transition portion is formed at the connection between the limiting groove (2111) and the groove (2110).

5. The ultrapure water EDI electro-desalination equipment according to claim 3, characterized in that, The bracket (1) has a movable groove (221) at the outlet end of the support plate (21). Several reset spring rods (222) are installed in the movable groove (221). A reset plate (223) is slidably connected to the top of the reset spring rod (222). A triangular plate (224) is installed on the top of the reset plate (223). Limiting posts (225) are installed on both the left and right ends of the rotation axis of the front panel (24) of the support plate (21). A triangular groove is opened at one end of the limiting post (225) at the triangular plate (224). One end of the triangular plate (224) slides through the bracket (1) and then fits tightly in the triangular groove.

6. The ultrapure water EDI electro-desalination equipment according to claim 3, characterized in that, The front end of the upper plate (212) is provided with a protrusion structure, and a handle groove is provided inside the protrusion structure.

7. The ultrapure water EDI electro-desalination equipment according to claim 6, characterized in that, The second roller (213) located at the front end of the upper plate (212) protrudes from the front of the upper plate (212) and is in close contact with one end face of the front panel (24).

8. The ultrapure water EDI electro-desalination equipment according to claim 2, characterized in that, The rear panel (22) and the front panel (24) have circular holes (220) respectively at the installation positions of the water interface (11) of the corresponding module body (10). The bottom of the circular hole (220) at the rear end has an axially extending telescopic hole (2200). The docking assembly (3) includes: An expansion spring (31) is installed at one end inside a telescopic hole (2200); The limiting plate (32) is slidably connected in the telescopic hole (2200) through the slide rail and is fixedly connected to the other end of the expansion spring (31); The limiting ring (33) is installed laterally inside the limiting plate (32) and inside the circular hole (220); An external interface (34) is installed at the end of the limiting ring (33) away from the water interface (11); A sealing ring (35) is installed on the inner wall of the outer interface (34) to fit tightly against the outer wall of the water interface (11); The water interface (11) located at the rear end of the module body (10) has a horizontal end structure, and the water interface (11) located at the front end of the module body (10) has a micro arc structure.

9. The ultrapure water EDI electro-desalination equipment according to claim 7, characterized in that, Two sets of L-shaped frames (231) are symmetrically installed on the left and right ends of the rear panel (22). The vertical parts of the two sets of L-shaped frames (231) are provided with slidably connected compression spring rods (232). The rear ends of each compression spring rod (232) are connected to a horizontal connecting plate (233). The rear end of the upper plate (212) is equipped with an active plate (234) corresponding to one end of the compression spring rod (232).

10. The ultrapure water EDI electro-desalination equipment according to claim 8, characterized in that, The docking assembly (3) further includes a spiral ring (311), a pressing roller (313), and a limiting collar (314). The outer interface (34) is provided with an external thread. The spiral ring (311) is threadedly connected to the outer interface (34). The outer interface (34) is provided with a rolling hole (312) along the axial direction near the outer side of the limiting collar (33). The pressing roller (313) is slidably connected inside the rolling hole (312) and partially extends out of the rolling hole (312). The limiting collar (314) is fixedly installed at one end of the water interface (11) corresponding to the rolling hole (312) for cooperating with the pressing roller (313) for limiting.

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