Intelligently-controlled EDI (electrodeionization) hyperpure dialysis water treatment equipment

Abstract

The utility model discloses intelligent control EDI (Electronic Data Interchange) hyperpure dialysis water treatment equipment, which mainly comprises a bipolar reverse osmosis water production device, an EDI module, a membrane heat elimination device, a conveying pipeline and a control valve, a circulating water tank is sequentially connected with a primary reverse osmosis module, a secondary reverse osmosis module, the EDI module and a pure water conveying pipeline to form a bipolar reverse osmosis water production pipeline; the circulating water tank is connected with the membrane hot pin pipeline, and the pure water conveying pipeline is respectively connected with the primary reverse osmosis module and the secondary reverse osmosis module. According to the equipment, an EDI filtering module and a membrane heat elimination device are additionally arranged on the basis of a bipolar reverse osmosis module water production device, so that an intelligent control EDI ultra-pure dialysis water treatment mode is realized, and the continuity of water used by a dialysis machine is ensured. The system is additionally provided with a double-membrane or single-stage membrane heat elimination function, heat elimination modes can be flexibly selected according to needs, and biological membranes are prevented from being generated.

Description

Technical Field

[0001] The utility model relates to medical equipment, in particular to an intelligently controlled EDI ultrapure dialysis water treatment device. Background Art

[0002] Medical water treatment equipment utilizes pretreatment, reverse osmosis technology, ultrapurification, and post-treatment methods to nearly completely remove conductive media from water while also minimizing the presence of undissociated gums, gases, and organic matter. Bipolar reverse osmosis water production equipment is an advanced water treatment system primarily composed of a pretreatment system, a primary reverse osmosis system, a secondary reverse osmosis system, a pure water tank, a wastewater tank, and a control system. The reverse osmosis principle of a dual-stage reverse osmosis water purifier utilizes a pressure differential to force water through a semipermeable membrane, filtering out impurities, bacteria, viruses, and other substances, ultimately producing pure water. The specific process is as follows: tap water first passes through the pretreatment system to remove large particles, then enters the primary reverse osmosis system to filter out most ionic substances. It then enters the secondary reverse osmosis system to further filter out fine impurities, ultimately producing purified water. However, this equipment is not fully functional. Therefore, the applicant has researched and developed a multifunctional, intelligent water treatment device. Utility Model Content

[0003] The purpose of the utility model is to add an EDI filter module and a membrane thermal elimination device on the basis of a bipolar reverse osmosis module water production device, and to provide an intelligently controlled EDI ultrapure dialysis water treatment device.

[0004] The technical solution of the utility model is achieved as follows: it mainly consists of a circulating water tank, a first-level reverse osmosis module, a second-level reverse osmosis module, a pure water delivery pipeline, an EDI module and a control valve;

[0005] The circulating water tank is equipped with a conductivity sensor CTO, a temperature sensor TTO, a liquid level sensor PTO and a heater;

[0006] The circulating water tank is sequentially connected to the first-level reverse osmosis module, the second-level reverse osmosis module, the EDI module and the pure water delivery pipeline to form a bipolar reverse osmosis water production pipeline. A disinfection and cleaning valve Y2 is provided at the end of the pure water delivery pipeline; an EDI water inlet valve Y12 is provided between the output end of the second-level reverse osmosis module and the water inlet end of the EDI module, and a control valve Y6 is provided between the output end of the second-level reverse osmosis module and the pure water delivery pipeline as a bypass valve of the EDI device. An EDI pump M4 and a three-way discharge valve Y14 are provided at the output end of the EDI module pipeline. The circulating water tank is connected to the membrane hot-selling pipeline. On the membrane hot-selling pipeline, there are a membrane hot-selling circulation pump M3, a first-level membrane hot-elimination valve Y7, a second-level membrane hot-elimination valve Y8, a membrane hot-elimination circulation valve Y9, and a membrane hot-elimination circulation valve Y10. A single-level valve Y4 and a single-level valve Y5 are provided on the hot-selling pipeline.

[0007] The pure water delivery pipeline is connected to the first-level reverse osmosis module and the second-level reverse osmosis module respectively. The circulating water tank is connected to the reverse osmosis water inlet pipeline and is equipped with a reverse osmosis water inlet valve Y1. The first-level reverse osmosis module of the circulating water tank and the first-level high-pressure pump M1 constitute the first-level reverse osmosis circulation pipeline. The circulating water tank and the second-level reverse osmosis module and the second-level high-pressure pump M2 constitute the second-level reverse osmosis circulation pipeline.

[0008] Furthermore, a pressure switch PS1 is provided on the transmission pipeline between the first-stage reverse osmosis module and the second-stage reverse osmosis module.

[0009] Furthermore, a sampling valve PH1 and a sampling valve PH2 are provided on the primary reverse osmosis circulation pipeline and the secondary circulation pipeline, and a sampling valve PH3 is provided at the end of the pure water delivery pipeline.

[0010] Furthermore, the output ends of the first-stage reverse osmosis module and the second-stage reverse osmosis module are respectively provided with a conductivity sensor CT1 and a conductivity sensor CT2.

[0011] Furthermore, a plurality of diaphragm valves NV are provided on the primary reverse osmosis circulation pipeline and the secondary circulation pipeline.

[0012] Furthermore, it also includes a control system with voice recognition, face recognition and remote control functions.

[0013] Face recognition: The face recognition module can be used to authorize user logins and set hierarchical permissions. Log in through the face recognition system and operate and view without entering an account or password.

[0014] Voice recognition: Through the voice recognition module, the device is operated by the solid line.

[0015] Remote control: The reverse osmosis device is equipped with an IoT gateway, which enables remote login via the Internet on PCs and mobile phones. The user's login is authorized and the usage rights are graded. According to the authorization level of the login user, the device interface under different permissions and the alarm information can be viewed to obtain relevant information of the device.

[0016] Compared with the existing technology, the beneficial effects of the present invention are as follows: the pure water produced by the double-stage reverse osmosis is used as the inlet water of the EDI device, and the ions in the reverse osmosis water are further removed through the EDI module; when the resistivity RT1 of the EDI produced water is less than 1MΩ·cm, it is discharged through the three-way valve, and the ultrapure water greater than or equal to 1MΩ·cm passes through the bacterial filter and is delivered to the water points of each dialysis machine through the EDI pump. At the same time, an EDI bypass valve is provided, which operates when the water produced by the EDI device cannot meet the use requirements, and ensures the continuity of water supply to the dialysis machine. The system adds a membrane thermal disinfection pipeline, including double-membrane or single-stage membrane thermal disinfection function, and the thermal disinfection method can be flexibly selected according to needs to prevent the formation of biofilm. The device also includes voice, face recognition and remote control functions to achieve intelligent control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 It is a two-stage reverse osmosis water production process.

[0020] Figure 3 It is the pipeline of the primary and secondary recovery system.

[0021] Figure 4 It has a double-stage membrane thermal disinfection function.

[0022] Figure 5 It is a single-stage membrane heat elimination function.

[0023] Figure 6 It is a single and secondary membrane heat elimination function. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] M1 first-stage high-pressure pump, M2 second-stage high-pressure pump, M3 membrane thermal disinfection circulation pump, M4 EDI pump, Y1 reverse osmosis water inlet valve, Y2 disinfection and cleaning valve, Y3 waste valve, Y4 single-stage valve, Y5 single-secondary valve, Y6 control valve, Y7 first-stage membrane thermal disinfection valve, Y8 second-stage membrane thermal disinfection valve, Y9 membrane thermal disinfection circulation valve, Y10 membrane thermal disinfection circulation valve, Y12 EDI water inlet valve, Y13 second-stage fault waste valve, Y14 three-way drain valve, R0 heater, CT0 reverse osmosis water inlet conductivity, CT1 first-stage pure water conductivity, CT2 second-stage pure water conductivity, FT1 first-stage pure water flow, FT2 second-stage pure water flow, FT3 waste flow, FT4 return water flow, RT1 ultrapure water resistance, PT0 circulating water tank level, PT1 first-stage pure water pressure, PT2 second-stage pure water pressure, TT0 outlet water temperature, TT1 return water temperature.

[0026] like Figure 1 As shown, an intelligently controlled EDI ultrapure dialysis water treatment device mainly comprises a circulating water tank 1, a primary reverse osmosis module 3, a secondary reverse osmosis module 4, a pure water delivery pipeline 6, an EDI module 5 and a control valve;

[0027] The circulating water tank 1 is provided with a conductivity sensor CTO, a temperature sensor TTO, a liquid level sensor PTO and a heater 2;

[0028] The circulating water tank 1 is sequentially connected to the first-level reverse osmosis module 3, the second-level reverse osmosis module 4, the EDI module 5 and the pure water delivery pipeline 6 to form a bipolar reverse osmosis water production pipeline. A disinfection and cleaning valve Y2 is provided at the end of the pure water delivery pipeline; an EDI water inlet valve Y12 is provided between the output end of the second-level reverse osmosis module and the water inlet end of the EDI module, a control valve Y6 is provided between the output end of the second-level reverse osmosis module and the pure water delivery pipeline as a bypass valve of the EDI device, an EDI pump M4 and a three-way discharge valve Y14 are provided at the output end of the EDI module pipeline, the circulating water tank is connected to the membrane hot-selling pipeline, and the membrane hot-selling pipeline is provided with a membrane hot-selling circulation pump M3, a first-level membrane hot-elimination valve Y7, a second-level membrane hot-elimination valve Y8, a membrane hot-elimination circulation valve Y9, and a membrane hot-elimination circulation valve Y10. A single-level valve Y4 and a single-level valve Y5 are provided on the hot-selling pipeline;

[0029] The pure water delivery pipeline is connected to the primary and secondary reverse osmosis modules, respectively. The circulating water tank is connected to the reverse osmosis water inlet pipeline and is equipped with a reverse osmosis water inlet valve Y1. The primary reverse osmosis module and primary high-pressure pump M1 in the circulating water tank constitute the primary reverse osmosis circulation pipeline, while the circulating water tank, secondary reverse osmosis module, and secondary high-pressure pump M2 constitute the secondary reverse osmosis circulation pipeline. A pressure switch PS1 is installed on the pipeline between the primary and secondary reverse osmosis modules. Sampling valves PH1 and PH2 are installed on the primary and secondary reverse osmosis circulation pipelines, and a sampling valve PH3 is installed at the end of the pure water delivery pipeline. Conductivity sensors CT1 and CT2 are installed at the output ends of the primary and secondary reverse osmosis modules, respectively. Several diaphragm valves NV are installed on the primary and secondary reverse osmosis circulation pipelines.

[0030] like Figure 2As shown in the figure, in a two-stage reverse osmosis system, the reverse osmosis inlet valve Y1 is normally open. When the water tank is full, the tank level float automatically closes. The membrane heat removal circulation valve Y10 is normally open and closes when the membrane heat function is in operation. The first-stage high-pressure pump M1 is activated, and the water in the circulation tank flows through it into the first-stage membrane module. The produced primary pure water flows into the second-stage high-pressure pump M2. A portion of the primary concentrate is discharged through Y3, and a portion is returned to the front of the first-stage high-pressure pump M1 (increasing system recovery). When the primary product water pressure (pressure switch PS1) exceeds 0.3 MPa, the second-stage high-pressure pump M2 is activated, and the primary pure water flows through it into the second-stage membrane module. The secondary pure water flows into the EDI module through the EDI inlet valve Y12. The pure water produced by the two-stage reverse osmosis system serves as the inlet water for the EDI device, where ions are further removed from the reverse osmosis water. Reverse osmosis pure water enters the EDI module through the EDI inlet valve Y12. When the EDI water resistivity RT1 is less than 1 MΩ·cm, it is discharged through the three-way drain valve Y14. Ultrapure water with a resistivity greater than or equal to 1 MΩ·cm passes through a bacterial filter and is delivered to the dialysis machine water points by the EDI pump M4. Control valve Y6 serves as the EDI bypass valve. When the EDI water production fails to meet usage requirements, the EDI inlet valve Y12 is closed and the control valve Y6 is opened, allowing the dual-stage reverse osmosis pure water to be delivered to the dialysis machine water points, ensuring a continuous water supply to the dialysis machines.

[0031] Part of the secondary concentrated water returns to the front of the secondary high-pressure pump M2, and part returns to the front of the primary high-pressure pump M1 to increase the system recovery rate, such as Figure 3 shown.

[0032] The low liquid level of the circulating water tank (liquid level sensor PT0) is a low liquid level protection for the first-stage high-pressure pump M1, preventing the first-stage high-pressure pump M1 from being damaged by dry running without water. The pressure switch PS1 is a low pressure protection for the second-stage high-pressure pump M2, preventing the second-stage high-pressure pump M2 from being damaged by dry running without water.

[0033] like Figure 4 As shown, for dual-stage membrane thermal disinfection, the reverse osmosis water inlet valve Y1 is brought to the high liquid level (level sensor PT0), and the reverse osmosis water inlet valve Y1 is closed. Heater 2 in the circulating water tank is activated, and membrane thermal disinfection circulation pump M3 is started. Primary membrane thermal disinfection valve Y7, secondary membrane thermal disinfection valve Y8, and valve Y4 are opened, as is membrane thermal disinfection circulation valve Y9. All other valves are closed. The system circulates and gradually heats the primary and secondary reverse osmosis membrane modules. 45°C water (temperature sensors TT0 and TT1) circulates for 45 minutes to preheat the reverse osmosis membrane modules. The temperature is then gradually raised to 85°C and maintained for 20 minutes. Heater 2 in the circulating water tank is then deactivated, and the temperature gradually cools down to room temperature, completing the dual-stage membrane thermal disinfection function.

[0034] like Figure 5As shown, for a single-stage membrane thermal disinfection function: RO water inlet valve Y1 reaches the high liquid level (level sensor PT0), then closes. The heater in the circulating water tank activates, and the membrane thermal disinfection circulation pump M3 starts. First-stage membrane thermal disinfection valves Y7 and Y4 open, as does membrane thermal disinfection circulation valve Y9. All other valves are closed. The system circulates and gradually heats the first-stage reverse osmosis membrane assembly. 45°C water (temperature sensors TT0 and TT1) circulates for 45 minutes to preheat the reverse osmosis membrane assembly. The temperature is then gradually raised to 85°C and maintained for 20 minutes. The heater in the circulating water tank stops heating, and the temperature gradually cools down to room temperature, completing the first-stage membrane thermal disinfection function.

[0035] like Figure 6 As shown, for a single, two-stage membrane thermal disinfection function: RO water inlet valve Y1 is brought to the high liquid level (level sensor PT0), then closed. Heater 2 in the circulating water tank is activated, and membrane thermal disinfection circulation pump M3 is started. Secondary membrane thermal disinfection valve Y8 and membrane thermal disinfection circulation valve Y9 are opened, while all other valves are closed. The system circulates and gradually heats the secondary reverse osmosis membrane assembly. 45°C water (temperature sensors TT0 and TT1) circulates for 45 minutes to preheat the reverse osmosis membrane assembly. The temperature is then gradually raised to 85°C and maintained for 20 minutes. Heater 2 in the circulating water tank is then deactivated, and the temperature gradually cools down to room temperature, completing the secondary membrane thermal disinfection function.

[0036] It also includes a control system with voice recognition, face recognition and remote control functions. Face recognition: the face recognition module can be used to authorize the user's login and set the level of use rights. By logging in through the face recognition system, you can operate and view without entering an account password; Voice recognition: the voice recognition module is used to operate the equipment in real time; Remote control: the reverse osmosis device is installed with an Internet of Things gateway, which can be used to log in remotely on computers and mobile phones through the Internet; the user's login is authorized and the level of use rights is set; according to the authorization level of the logon user, it is possible to view the device interface under different permissions and the alarm information of the device.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An intelligently controlled EDI ultrapure dialysis water treatment device, characterized in that: It mainly consists of a circulating water tank, a first-stage reverse osmosis module, a second-stage reverse osmosis module, pure water delivery pipelines, an EDI module and control valves; The circulating water tank is equipped with a conductivity sensor CTO, a temperature sensor TTO, a liquid level sensor PTO and a heater; The circulating water tank is sequentially connected to the first-level reverse osmosis module, the second-level reverse osmosis module, the EDI module and the pure water delivery pipeline to form a bipolar reverse osmosis water production pipeline. A disinfection and cleaning valve Y2 is provided at the end of the pure water delivery pipeline; an EDI water inlet valve Y12 is provided between the output end of the second-level reverse osmosis module and the water inlet end of the EDI module, a control valve Y6 is provided between the output end of the second-level reverse osmosis module and the pure water delivery pipeline as a bypass valve of the EDI device, an EDI pump M4 and a three-way discharge valve Y14 are provided at the output end of the EDI module pipeline, the circulating water tank is connected to the membrane hot-selling pipeline, and the membrane hot-selling pipeline is provided with a membrane hot-selling circulation pump M3, a first-level membrane hot-elimination valve Y7, a second-level membrane hot-elimination valve Y8, a membrane hot-elimination circulation valve Y9, and a membrane hot-elimination circulation valve Y10. A single-level valve Y4 and a single-level valve Y5 are provided on the hot-selling pipeline; The pure water delivery pipeline is connected to the first-level reverse osmosis module and the second-level reverse osmosis module respectively. The circulating water tank is connected to the reverse osmosis water inlet pipeline and is equipped with a reverse osmosis water inlet valve Y1. The first-level reverse osmosis module of the circulating water tank and the first-level high-pressure pump M1 constitute the first-level reverse osmosis circulation pipeline. The circulating water tank and the second-level reverse osmosis module and the second-level high-pressure pump M2 constitute the second-level reverse osmosis circulation pipeline.

2. The intelligently controlled EDI ultrapure dialysis water treatment equipment according to claim 1, characterized in that: A pressure switch PS1 is provided on the transmission pipeline between the first-stage reverse osmosis module and the second-stage reverse osmosis module.

3. The intelligently controlled EDI ultrapure dialysis water treatment equipment according to claim 2, characterized in that: Sampling valves PH1 and PH2 are provided on the primary reverse osmosis circulation pipeline and the secondary circulation pipeline, and a sampling valve PH3 is provided at the end of the pure water delivery pipeline.

4. The intelligently controlled EDI ultrapure dialysis water treatment equipment according to claim 3, characterized in that: The output ends of the first-stage reverse osmosis module and the second-stage reverse osmosis module are respectively provided with a conductivity sensor CT1 and a conductivity sensor CT2.

5. The intelligently controlled EDI ultrapure dialysis water treatment equipment according to claim 4, characterized in that: Several diaphragm valves NV are provided on the primary reverse osmosis circulation pipeline and the secondary circulation pipeline.

6. The intelligently controlled EDI ultrapure dialysis water treatment equipment according to claim 5, characterized in that: It also includes a control system with voice recognition, face recognition and remote control functions. Face recognition: the face recognition module can be used to authorize the user's login and set the level of use rights. By logging in through the face recognition system, you can operate and view without entering an account password; Voice recognition: the voice recognition module is used to operate the equipment in real time; Remote control: the reverse osmosis device is installed with an Internet of Things gateway, which can be used to log in remotely on computers and mobile phones through the Internet; the user's login is authorized and the level of use rights is set; according to the authorization level of the logon user, it is possible to view the device interface under different permissions and the alarm information of the device.

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