Independent power supply EDI device
By equipping each EDI module with an independent power supply and controller, the system shutdown and current deviation problems caused by the power supply mode in the prior art are solved, and the stable operation and efficient water production of the EDI device are realized.
Patent Information
- Application Number
- CN202422806641.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The existing EDI modules use a one-to-many power supply mode, which causes the entire system to shut down when the module is damaged. The current deviation is serious and cannot be adjusted independently, affecting water quality and system stability.
The EDI device adopts independent power supply. Each EDI module is equipped with an independent power supply module and controller, realizing one-to-one power supply. The current and flow are finely managed through the control panel and flow meter to ensure stable system operation.
Independent power supply for the EDI module was achieved, avoiding system downtime, improving water quality stability and operating efficiency, and reducing maintenance difficulty and cost.
Smart Images

Figure CN223766164U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water treatment equipment technology, specifically to an independently powered EDI device. Background Technology
[0002] EDI modules are devices specifically designed to remove metal ions from pure water. They typically use a "one-to-many" power supply mode, where a single high-power DC power supply drives multiple EDI modules. However, this power supply mode is not conducive to the control of EDI modules. If the power supply fails, multiple corresponding EDI modules will shut down, causing the entire pure water system to malfunction and fail to produce water. Furthermore, the regeneration current of a single module cannot be independently adjusted. After prolonged operation, the regeneration current of each EDI module under the control of the same rectifier will become severely imbalanced and unable to recover. If one EDI module fails, its corresponding power supply will distribute current to other EDI modules, causing a temporary excessive supply current, which seriously affects the operation of the EDI system. Utility Model Content
[0003] This invention provides an independently powered EDI device, which can significantly improve the operating efficiency and stability of the EDI device, ensure that the produced water quality consistently meets the standards, and at the same time reduce operating costs and maintenance difficulty.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an independently powered EDI device, comprising multiple EDI modules, each of which is provided with a water inlet, a product water interface, and a concentrate interface; further comprising: multiple power modules, each of which is provided with a power supply terminal, and each EDI module is electrically connected to the power supply terminal of the corresponding power module.
[0005] Preferably, each of the power modules is provided with a control port; it also includes a controller, which is provided with an input port, an output port and a control panel, and the control port of each power module is electrically connected to the output port of the controller.
[0006] Preferably, the water production interface is equipped with a first flow meter, which is electrically connected to the input port of the controller.
[0007] Preferably, the concentrate interface is equipped with a second flow meter, which is electrically connected to the input port of the controller.
[0008] Preferably, each of the EDI modules has a solenoid valve at its water inlet interface, and the solenoid valve is electrically connected to the output port of the controller.
[0009] Preferably, the device also includes a frame, the front end of which has multiple horizontally arranged placement spaces, and the rear end of which has a horizontally penetrating channel through each of the placement spaces. The channel contains a water supply pipe, a product water pipe, and a concentrate pipe. Each of the water inlets is connected to the water supply pipe via a solenoid valve, and each of the concentrate inlets is connected to the concentrate pipe via a second flow meter.
[0010] The advantages of this invention are as follows: Each EDI module is powered by its own power supply module, achieving a one-to-one power supply. When the produced water fails to meet standards, or when a power supply module or EDI module needs maintenance, the entire EDI system does not need to be shut down, ensuring the normal operation of the pure water system. This effectively avoids the situation where local problems often lead to the shutdown of the entire production workshop, as is common in existing solutions, thus overcoming the shortcomings of existing technologies. Furthermore, the sequential arrangement of each EDI module within the rack greatly facilitates protection and maintenance, while the power supply module is integrated into a separate cabinet for convenient power distribution and debugging. Each power supply module can be turned on / off and its output current adjusted via the control panel, with a current adjustment range of 0-5A, allowing for precise management of each EDI module and ensuring the quality of the produced water. The system also allows for flow statistics of the produced water and concentrate interfaces of each EDI module unit, and coordinates the opening of the corresponding solenoid valves through the controller for precise flow control. This facilitates easier control of the operation of each EDI module, thereby optimizing the entire EDI system globally and achieving the best operating results. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a partial structural cross-sectional view of the present invention.
[0014] In the diagram: 1. EDI module; 2. Inlet water interface; 3. Product water interface; 4. Concentrate interface; 5. Power module; 6. Power supply terminal; 7. Control port; 8. Controller; 9. Control panel; 10. Input port; 11. Output port; 12. First flow meter; 13. Second flow meter; 14. Solenoid valve; 15. Frame; 16. Water supply pipe; 17. Product water pipe; 18. Concentrate pipe; 19. Installation space; 20. Channel. Detailed Implementation
[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0016] according to Figure 1 , Figure 2 As shown, an independently powered EDI device includes multiple EDI modules 1, each of which has a water inlet 2, a product water interface 3, and a concentrate interface 4; it also includes multiple power modules 5, each of which has a power supply terminal 6, and each EDI module 1 is electrically connected to the power supply terminal 6 of the corresponding power module 5. The device also includes a frame 15, with multiple horizontally arranged placement spaces 19 at the front end and a channel 20 horizontally penetrating each placement space 19 at the rear end. The channel 20 contains a water supply pipe 16, a product water pipe 17, and a concentrate pipe 18. Each water inlet 2 is connected to the water supply pipe 16 via a solenoid valve 14, and each concentrate interface 4 is connected to the concentrate pipe 18 via a second flow meter 13.
[0017] With the above configuration, each EDI module 1 is powered by its own power module 5, thus achieving a one-to-one power supply. When the produced water fails to meet standards, or when a power module 5 or EDI module 1 needs maintenance, the entire EDI system does not need to be shut down, ensuring the normal operation of the pure water system. This effectively avoids the situation in existing solutions where localized problems often lead to shutdowns of the entire production workshop, thereby addressing the shortcomings of existing technologies. Furthermore, the sequential placement of each EDI module 1 within the rack 15 greatly facilitates protection and maintenance, while the power module 5 is integrated into a separate cabinet for convenient power distribution and debugging.
[0018] Each of the power modules 5 is provided with a control port 7; it also includes a controller 8, which is provided with an input port 10, an output port 11 and a control panel 9, and the control port 7 of each power module 5 is electrically connected to the output port 11 of the controller 8.
[0019] The controller 8 in this setup can be implemented by a PLC, and the control panel 9 can be used to turn each power module 5 on and off and adjust the output current. The current adjustment range is 0 to 5A, thereby enabling fine management of each EDI module 1 and ensuring the quality of the produced water.
[0020] Furthermore, the product water interface 3 is equipped with a first flow meter 12, which is electrically connected to the input port 10 of the controller 8. The concentrate interface 4 is equipped with a second flow meter 13, which is electrically connected to the input port 10 of the controller 8. Each EDI module 1 has a solenoid valve 14 at its inlet interface 2, which is electrically connected to the output port 11 of the controller 8.
[0021] With the above settings, the flow rate of the product water interface 3 and concentrate interface 4 of each EDI module 1 unit can be counted, and the opening degree of the corresponding solenoid valve 14 can be coordinated by the controller 8 to accurately adjust and control the flow rate, making it easier to control the operation of each EDI module 1, thereby optimizing the entire EDI system globally and achieving the best operating effect.
[0022] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. An independently powered EDI device comprising a plurality of EDI modules, each of the EDI modules being respectively provided with a water inlet interface, a water production interface and a concentrated water interface, characterized in that, Also include: A plurality of power modules are provided, each of which is provided with a power supply end, and each of the EDI modules is electrically connected to the power supply end of the corresponding power module.
2. An independently powered EDI device according to claim 1, wherein: Each of the power modules is provided with a control port. Also include a controller, the controller is provided with an input port, an output port and a control panel, the control port of each of the power modules is electrically connected to the output port of the controller.
3. An independently powered EDI device according to claim 2, wherein: The water outlet is provided with a first flow meter, and the first flow meter is electrically connected to the input port of the controller.
4. An independently powered EDI device according to claim 3, wherein: The concentrated water interface is provided with a second flow meter, and the second flow meter is electrically connected to the input port of the controller.
5. An independently powered EDI device according to claim 4, wherein: The water inlet of each of the EDI modules is provided with a solenoid valve, and the solenoid valve is electrically connected to the output port of the controller.
6. An independently powered EDI device according to claim 5, wherein: Also include a rack, the front end of the rack is provided with a plurality of arrangement spaces arranged transversely, the rear end of the rack is provided with a channel transversely penetrating each of the arrangement spaces, the channel is provided with a water supply pipeline, a water production pipeline and a concentrated water pipeline, each of the water inlets is communicated with the water supply pipeline through the solenoid valve, and each of the concentrated water interfaces is communicated with the concentrated water pipeline through the second flow meter.