An electro-deionization water treatment device and its treatment method in chemical water treatment.

Abstract

This invention discloses an electro-deionization water treatment device and a treatment method for chemical water purification, relating to the field of water treatment equipment. A constant flow inlet assembly is installed at the inlet ends of both the concentrate chamber and the pure water chamber. When water enters the concentrate and pure water chambers, the hydraulic balancing unit within the constant flow inlet assembly moves upward and contracts under the pressure of the incoming water. During this contraction, the internal pressure gradually increases until the pressure within the hydraulic balancing unit balances the incoming water pressure. Simultaneously, the hydraulic balancing unit adjusts the valve opening size of the constant flow valve assembly during the pressure balancing process. This ensures that the valve opening is smaller when the water pressure is higher and larger when the water pressure is lower. By automatically adjusting the valve opening size according to the water pressure, the inlet flow rate is not affected by the water pressure, thus maintaining a suitable flow ratio between the concentrate and pure water chambers to improve the water treatment effect of the equipment.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of water treatment equipment, in particular, relates to an electrodeionization water treatment equipment and a treatment method in chemical water preparation. BACKGROUND

[0002] The electrodeionization water treatment equipment comprises an anode, a cathode, a cation permeable membrane and a cation permeable membrane. The membranes are alternately arranged in a way that concentrated water chambers and pure water chambers are alternately formed in the stack between the anode and the cathode, and the pure water chambers are filled with ion exchange resin. When the equipment is working, the anion and cation impurities in the water in the pure water chamber migrate to the concentrated water chambers on both sides respectively through the ion exchange resin and the cation permeable membrane and the cation permeable membrane, so as to purify the water in the pure water chamber to obtain pure water.

[0003] Chinese patent CN102939266B discloses an electrodeionization device for preparing deionized water, which is provided with a plurality of concentrated water chambers and pure water chambers staggered in sequence in the device, and concentrated water and clean water to be treated are respectively delivered into the concentrated water chambers and the pure water chambers through the water inlet conduit and the shunt pipe, so as to purify the clean water to obtain pure water.

[0004] In the electrodeionization process, if the concentrated water flow is large, it will affect the speed of ion migration into the concentrated water chamber, thereby affecting the water quality treatment effect, and when the concentrated water flow is too small, it will cause the concentration difference between the concentrated water chambers and the pure water chambers on both sides of the membrane to become large, thereby forming a concentration difference diffusion, which will also affect the water quality treatment effect. Through research, it is found that the water quality treatment effect is better when the concentrated water flow is generally 5%-10% of the clean water flow (water to be treated). However, in the prior art, as in the above-mentioned patent, concentrated water and clean water to be treated are respectively delivered into a plurality of concentrated water chambers and a plurality of pure water chambers through the water inlet conduit and the shunt pipe. As the water in the water inlet conduit is gradually shunted into the water, the water pressure in the water inlet conduit will gradually decrease, thereby affecting the stability of the water inlet flow of the subsequent concentrated water chambers and pure water chambers. Not only does this make the water inlet flow of different concentrated water chambers and pure water chambers different, but it is also inconvenient to accurately control the flow ratio between the concentrated water chambers and the pure water chambers, thereby affecting the water quality treatment effect. SUMMARY

[0005] In view of the problems in the related art, the present application provides an electrodeionization water treatment equipment and a treatment method in chemical water preparation to overcome the above-mentioned technical problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the present application is realized by the following technical scheme:

[0007] The application discloses an electric deionization water treatment equipment, which comprises an electric deionization assembly, a front end plate, a rear end plate and an inlet and outlet water pipe group.

[0008] The inlet and outlet water pipe group is communicated with the plurality of concentrated water chambers and pure water chambers simultaneously and is used for feeding water and discharging water in the concentrated water chambers and pure water chambers.

[0009] The constant flow liquid inlet assembly comprises a hydraulic cylinder and a liquid outlet pipe, the hydraulic cylinder is internally provided with a hydraulic balance unit, the liquid outlet pipe is connected and installed on one side of the hydraulic cylinder, and a constant flow valve group is installed in the liquid outlet pipe.

[0010] The top end of the constant flow liquid inlet assembly is fixedly provided with a flow adjusting assembly, the flow adjusting assembly can adjust the initial pressure of the hydraulic balance unit, so as to adjust the contraction length and pressure balance of the hydraulic balance unit in the process of keeping the pressure balance between the pressure in the hydraulic balance unit and the water pressure at the water inlet end of the inlet and outlet water pipe group and the valve opening size of the constant flow valve group.

[0011] Further, the cathode membrane group comprises a cathode membrane frame and an anion exchange membrane fixedly installed in the inner ring of the cathode membrane frame, the anode membrane group comprises an anode membrane frame and a cation exchange membrane fixedly installed in the inner ring of the anode membrane frame, and a plurality of the cathode membrane frames and anode membrane frames are sequentially and staggeredly sealed and connected to form a plurality of concentrated water chambers and pure water chambers between the anion exchange membrane and the cation exchange membrane.

[0012] Further, the inlet and outlet water pipe group comprises a clean water inlet, a concentrated water inlet, a concentrated water outlet and a pure water outlet fixedly installed on the front end plate, the inner side end of the clean water inlet is connected and installed with a clean water liquid distribution pipe which extends into the plurality of pure water chambers simultaneously, and a plurality of constant flow liquid inlet assemblies corresponding to the pure water chambers are connected and installed on the clean water liquid distribution pipe.

[0013] The inner side end of the concentrated water inlet is connected and installed with a concentrated water distribution pipe extending into the inside of the plurality of concentrated water chambers, and the concentrated water distribution pipe is connected and installed with a plurality of constant flow liquid inlet assemblies corresponding to the concentrated water chambers one by one.

[0014] The inner side end of the concentrated water outlet is connected and installed with a concentrated water return pipe in communication with the plurality of concentrated water chambers, and the inner side end of the pure water outlet is connected and installed with a pure water return pipe in communication with the plurality of pure water chambers.

[0015] Further, a plurality of connecting rods are arranged between the front end plate and the rear end plate, one end of the connecting rod is fixedly installed with an abutting end head abutting against the outer side surface of the front end plate, and the other end of the connecting rod is fixedly installed with a nut abutting against the outer side surface of the rear end plate.

[0016] Further, the hydraulic balance unit comprises a hydraulic plug, the hydraulic plug is sealingly and slidingly installed in the inside of the hydraulic cylinder, the top end of the hydraulic plug is fixedly installed with a piston rod extending above the hydraulic cylinder, the top surface of the hydraulic plug is abuttingly installed with a pressure spring, and the inner wall of the hydraulic cylinder is fixedly installed with a limiting ring supporting the bottom surface of the hydraulic plug.

[0017] Further, the constant flow valve group comprises an adjusting valve, the inside of the adjusting valve is slidingly installed with a valve plate, the valve plate is provided with a through hole in communication with the liquid outlet pipe, the top end of the valve plate is fixedly installed with a lifting frame extending above the adjusting valve, the top end of the lifting frame is fixedly connected with the top end of the piston rod, and the upper and lower ends of the valve plate are both installed with a sealing ring.

[0018] Further, the flow adjusting assembly comprises a pressing plate and a lifting adjusting unit, the pressing plate is slidingly installed at the upper end of the inside of the hydraulic cylinder, the pressing plate abuts against the top end of the pressure spring, the top surface of the pressing plate is fixedly installed with a plurality of lifting rods extending above the hydraulic cylinder, the top end of the lifting rod is fixedly installed with a lifting plate, and the lifting adjusting unit can adjust the height of the lifting plate.

[0019] Further, the lifting adjusting unit comprises a threaded sleeve, the threaded sleeve is fixedly installed at the top end of the lifting plate, the inside of the upper end of the threaded sleeve is threadedly installed with a rotating shaft, the upper end of the rotating shaft is rotatably installed between the cathode film group and the anode film group, and the top end of the rotating shaft extends above the cathode film group and the anode film group.

[0020] Further, the top of the cathode film group and the anode film group is fixedly installed with an outer shell surrounding the top end of the rotating shaft, the inside of the outer shell is rotatably installed with an adjusting rod, one end of the adjusting rod is fixedly installed with an adjusting knob, a plurality of transmission bevel gears corresponding to the rotating shaft are fixedly installed on the adjusting rod, and the top end of the rotating shaft is fixedly installed with a driven bevel gear meshingly and transmissionally connected with the corresponding transmission bevel gear.

[0021] The application also discloses a treatment method of chemical water, which comprises the following steps.

[0022] Firstly, the concentrated water and the clean water are simultaneously delivered to the concentrated water chambers and the pure water chambers through the water inlet and outlet pipe group and the multiple constant flow liquid inlet assemblies, and when the constant flow liquid inlet assemblies receive the water from the water inlet and outlet pipe group, the hydraulic balance units in the hydraulic cylinders can move upwards and shrink under the water pressure of the inlet water to balance the water pressure, and can adjust the opening size of the valves of the constant flow valve group in the process of balancing the water pressure to make the inlet water of the water inlet and outlet pipe group be delivered to the concentrated water chambers and the pure water chambers through the liquid outlet pipe with constant flow, and then the concentrated water and the clean water flow through the concentrated water chambers and the pure water chambers with specific flow rate ratio.

[0023] When the clean water flows through the pure water chambers, the anion impurities in the clean water are dragged by the anode to the concentrated water chambers near the anode through the ion exchange resin and the cathode membrane group, and the cation impurities in the clean water are dragged by the cathode to the concentrated water chambers near the cathode through the ion exchange resin and the anode membrane group to gradually remove the ion impurities in the clean water and prepare the pure water.

[0024] When it is necessary to adjust the flow rate ratio of the concentrated water and the clean water flowing through the concentrated water chambers and the pure water chambers, the initial pressure of the hydraulic balance units at the water inlet end of the concentrated water chambers or the pure water chambers is adjusted through the flow rate adjusting assembly to adjust the length of the shrinkage of the hydraulic balance units in the process of balancing the pressure in the hydraulic balance units and the water pressure at the water inlet end of the water inlet and outlet pipe group, and then the opening size of the valves of the constant flow valve group and the flow rate in the pressure balance are adjusted.

[0025] The application has the following beneficial effects:

[0026] 1. In the application, the constant flow liquid inlet assemblies are installed at the water inlet ends of the concentrated water chambers and the pure water chambers, and when the concentrated water chambers and the pure water chambers are filled with water, the hydraulic balance units in the constant flow liquid inlet assemblies can move upwards and shrink under the water pressure of the inlet water, and the internal pressure gradually increases in the shrinkage process until the pressure in the hydraulic balance units balances the water pressure of the inlet water, and the hydraulic balance units can adjust the opening size of the valves of the constant flow valve group in the process of balancing the water pressure to make the valve opening smaller when the water pressure is larger to reduce the water inlet cross section, and the valve opening larger when the water pressure is smaller to increase the water inlet cross section, and the opening size of the valves is automatically adjusted by the water pressure to make the inlet flow rate not affected by the water pressure, so that the inlet flow rates of all the concentrated water chambers arranged in front and back are the same, and the inlet flow rates of all the pure water chambers arranged in front and back are also the same, and then the concentrated water chambers and the pure water chambers can always keep the appropriate flow rate ratio to improve the water quality treatment effect of the equipment.

[0027] 2. The flow regulating assembly is fixedly installed at the top end of the constant flow inlet assembly, when the flow ratio of the concentrated water and the clean water flowing through the concentrated water chamber and the pure water chamber needs to be adjusted due to the influence of the clean water quality, the initial pressure of the hydraulic balance unit at the water inlet end of the concentrated water chamber or the pure water chamber is adjusted through the flow regulating assembly, so as to adjust the contraction length in the pressure balance process of the pressure of the hydraulic balance unit and the water pressure at the water inlet end of the water inlet and outlet pipe group, and then adjust the valve opening size and flow of the constant flow valve group in the pressure balance process, and then adjust the flow in the concentrated water chamber or the pure water chamber, so that the flow ratio of the concentrated water chamber and the pure water chamber is in the appropriate range, so as to improve the treatment effect of the clean water of different water quality, and improve the adaptability of the equipment.

[0028] Of course, it is not necessary for any product embodying the present application to achieve all of the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0030] Figure 1 It is a three-dimensional structure schematic diagram of the electric deionization water treatment equipment of the application.

[0031] Figure 2 It is a three-dimensional structure schematic diagram of the electric deionization water treatment equipment of the application. Figure 1

[0032] Figure 3 It is a three-dimensional structure schematic diagram of the electric deionization water treatment equipment of the application.

[0033] Figure 4 It is a three-dimensional structure schematic diagram of the electric deionization water treatment equipment of the application.

[0034] Figure 5 It is a three-dimensional structure schematic diagram of the electric deionization water treatment equipment of the application.

[0035] Figure 6 It is a three-dimensional structure schematic diagram of the electric deionization water treatment equipment of the application. Figure 5

[0036] Figure 7 It is a three-dimensional structure schematic diagram of the electric deionization water treatment equipment of the application.

[0037] Figure 8 It is a three-dimensional structure schematic diagram of the electric deionization water treatment equipment of the application. Figure 7

[0038] Figure 9 ​​​The schematic view of the mounting structure of the constant flow liquid inlet assembly on the concentrated water inlet pipe of the application;

[0039] Figure 10 The schematic view of the local enlarged structure at D of the application Figure 9 ;

[0040] Figure 11 The schematic view of the local enlarged structure at E of the application Figure 9 .

[0041] In the figure: 1, the electrodeionization assembly; 11, the front end plate; 12, the rear end plate; 13, the anode; 14, the clean water inlet; 15, the concentrated water inlet; 16, the concentrated water outlet; 17, the pure water outlet; 18, the connecting rod; 19, the abutting end; 110, the concentrated water distribution pipe; 111, the clean water distribution pipe; 112, the cathode membrane frame; 113, the anion exchange membrane; 114, the anode membrane frame; 115, the cation exchange membrane; 116, the concentrated water chamber; 117, the pure water chamber; 118, the cathode; 119, the nut; 2, the constant flow liquid inlet assembly; 21, the hydraulic cylinder; 22, the liquid outlet pipe; 23, the piston rod; 24, the lifting frame; 25, the regulating valve; 26, the hydraulic plug; 27, the pressure spring; 28, the valve plate; 29, the limiting ring; 210, the through hole; 211, the sealing ring; 3, the flow regulating assembly; 31, the outer shell; 32, the regulating rod; 33, the transmission bevel gear; 34, the regulating knob; 35, the driven bevel gear; 36, the rotating shaft; 37, the threaded sleeve; 38, the lifting plate; 39, the lifting rod; 310, the pressing plate. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the application will be clearly and completely described in the description of the application in combination with the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0043] In the description of the application, it should be understood that the terms “opening”, “upper”, “lower”, “top”, “middle”, “inner” and the like indicate the orientation or positional relationship, which are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0044] Embodiment one

[0045] Please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6As shown, the present application is a kind of electric deionization water treatment equipment, including electric deionization assembly 1, electric deionization assembly 1 includes front end plate 11, rear end plate 12 and water inlet and outlet pipe group, the outer side of front end plate 11 is fixedly installed with anode 13, the outer side of rear end plate 12 is fixedly installed with cathode 118, front end plate 11 and rear end plate 12 are fixedly installed with multiple staggered distribution cathode film groups and anode module, and multiple staggered distribution cathode film groups and anode module are isolated to form multiple staggered distribution concentrated water chamber 116 and pure water chamber 117 between front end plate 11 and rear end plate 12;Water inlet and outlet pipe group is communicated with multiple concentrated water chamber 116 and pure water chamber 117 simultaneously, for concentrated water chamber 116 and pure water chamber 117 water supply and drainage, and the water inlet end of water inlet and outlet pipe group in each concentrated water chamber 116 and pure water chamber 117 is installed with constant flow liquid inlet assembly 2;Constant flow liquid inlet assembly 2 includes hydraulic cylinder 21 and liquid outlet pipe 22, hydraulic cylinder 21 is installed with hydraulic balance unit inside, liquid outlet pipe 22 is connected and installed on one side of hydraulic cylinder 21, and constant flow valve group is installed in liquid outlet pipe 22, hydraulic balance unit can be moved upwards under the water pressure of water inlet end of water inlet and outlet pipe group Shrink, and its internal pressure gradually increases in the contraction process, until the pressure in hydraulic balance unit and the water pressure of water inlet end of water inlet and outlet pipe group keep balance, while hydraulic balance unit can adjust the valve opening size of constant flow valve group in the process of contraction balance water pressure, so that the valve opening of constant flow valve group is smaller when water pressure is greater, and the valve opening of constant flow valve group is greater when water pressure is smaller;The top of constant flow liquid inlet assembly 2 is fixedly installed with flow regulating assembly 3, and flow regulating assembly 3 can adjust the initial pressure of hydraulic balance unit, to adjust the contraction length and pressure balance of constant flow valve group in the process of keeping balance between the pressure in hydraulic balance unit and the water pressure of water inlet end of water inlet and outlet pipe group Valve opening size;

[0046] The water treatment device is characterized in that the pure water chamber 117 is filled with ion exchange resin, and when the water treatment device is in operation, the concentrated water and the clean water are simultaneously delivered to the concentrated water chambers 116 and the pure water chambers 117 respectively through the water inlet and outlet pipe group and the plurality of constant flow liquid inlet assemblies 2, and when the constant flow liquid inlet assemblies 2 receive the water from the water inlet and outlet pipe group, the hydraulic balance units in the hydraulic cylinders 21 can move upward to contract under the water pressure of the water inlet to balance the water pressure, and can adjust the opening size of the valves of the constant flow valve group in the process of balancing the water pressure to make the water inlet of the water inlet and outlet pipe group be delivered to the concentrated water chambers 116 and the pure water chambers 117 through the liquid outlet pipes 22 at a constant flow rate, so that the concentrated water and the clean water flow through the concentrated water chambers 116 and the pure water chambers 117 at a specific flow rate ratio; when the clean water flows through the pure water chambers 117, the anion impurities in the clean water are attracted by the anode 13 and migrate to the concentrated water chambers 116 near the anode 13 through the ion exchange resin and the cathode membrane group, and the cation impurities in the clean water are attracted by the cathode 118 and migrate to the concentrated water chambers 116 near the cathode 118 through the ion exchange resin and the anode membrane group, so as to gradually remove the ion impurities in the clean water and obtain pure water; when it is necessary to adjust the flow rate ratio of the concentrated water and the clean water flowing through the concentrated water chambers 116 and the pure water chambers 117, the initial pressure of the hydraulic balance units at the water inlet end of the concentrated water chambers 116 or the pure water chambers 117 is adjusted by the flow rate adjusting assembly 3 to adjust the contraction length of the hydraulic balance units in the process of keeping the pressure in the hydraulic balance units balanced with the water pressure at the water inlet end of the water inlet and outlet pipe group, so as to adjust the opening size of the valves of the constant flow valve group and the flow rate during pressure balancing.

[0047] The opening size of the valves is automatically adjusted by the water pressure, so that the water inlet flow rate is not affected by the water pressure, the water inlet flow rates of all the concentrated water chambers 116 arranged in front and back are kept the same, the water inlet flow rates of all the pure water chambers 117 arranged in front and back are also kept the same, and the flow rate ratio between the concentrated water chambers 116 and the pure water chambers 117 is always kept appropriate, so as to improve the water treatment effect of the device; by adjusting the opening size of the valves of the constant flow valve group and the flow rate during pressure balancing, the flow rates in the concentrated water chambers 116 and the pure water chambers 117 can be adjusted, so that the flow rate ratio of the concentrated water chambers 116 and the pure water chambers 117 is in an appropriate range, and the treatment effect of the clean water with different water quality is improved, and the adaptability of the device is improved.

[0048] Embodiment two

[0049] Please refer to Figures 1-4As shown, the embodiment differs from the above-mentioned embodiments in that the cathode film group comprises cathode film frames 112 and anion exchange membranes 113 fixedly installed in the inner circle of the cathode film frames 112, the anode film group comprises anode film frames 114 and cation exchange membranes 115 fixedly installed in the inner circle of the anode film frames 114, and the plurality of cathode film frames 112 and anode film frames 114 are sequentially and staggeredly sealed and connected to form a plurality of staggered distribution concentrated water chambers 116 and pure water chambers 117 between the anion exchange membranes 113 and the cation exchange membranes 115; the inlet and outlet water pipe group comprises a clean water inlet 14, a concentrated water inlet 15, a concentrated water outlet 16 and a pure water outlet 17 fixedly installed on the front end plate 11, the inner side end of the clean water inlet 14 is connected and installed with clean water distribution pipes 111 extending into the plurality of pure water chambers 117 at the same time, the clean water distribution pipes 111 are connected and installed with a plurality of constant flow liquid inlet assemblies 2 corresponding to the pure water chambers 117 one by one; the inner side end of the concentrated water inlet 15 is connected and installed with concentrated water distribution pipes 110 extending into the plurality of concentrated water chambers 116 at the same time, and the concentrated water distribution pipes 110 are connected and installed with a plurality of constant flow liquid inlet assemblies 2 corresponding to the concentrated water chambers 116 one by one; the inner side end of the concentrated water outlet 16 is connected and installed with concentrated water return pipes in communication with the plurality of concentrated water chambers 116 at the same time, and the inner side end of the pure water outlet 17 is connected and installed with pure water return pipes in communication with the plurality of pure water chambers 117 at the same time.

[0050] When the electrodeionization assembly 1 works, the clean water is transported to the corresponding pure water chambers 117 through the clean water inlet 14, the clean water distribution pipes 111 and the corresponding constant flow liquid inlet assemblies 2, and at the same time, the concentrated water is transported to the corresponding concentrated water chambers 116 through the concentrated water inlet 15, the clean water distribution pipes 111 and the corresponding constant flow liquid inlet assemblies 2, when the clean water flows through the pure water chambers 117, the anion impurities in the clean water are dragged by the anode 13, migrate to the concentrated water chambers 116 near the anode 13 through the ion exchange resin and the anion exchange membranes 113, the cation impurities in the clean water are dragged by the cathode 118, migrate to the concentrated water chambers 116 near the cathode 118 through the ion exchange resin and the cation exchange membranes 115, so as to gradually remove the ion impurities in the clean water, and prepare pure water, and finally the pure water is discharged from the pure water outlet 17 through the pure water return pipes, and the concentrated water is discharged from the concentrated water outlet 16 through the concentrated water return pipes.

[0051] Furthermore, a plurality of connecting rods 18 are arranged through the front end plate 11 and the rear end plate 12, one end of the connecting rod 18 is fixedly installed with an abutting end head 19 abutting against the outer side surface of the front end plate 11, the other end of the connecting rod 18 is fixedly installed with a nut 119 abutting against the outer side surface of the rear end plate 12, and the front end plate 11 and the rear end plate 12 are supported and installed through the cooperation of the connecting rod 18, the abutting end head 19 and the nut 119, so that the assembly and installation of the front end plate 11, the rear end plate 12 and the cathode film group and the anode film group are more convenient.

[0052] Embodiment three

[0053] Please refer to Figure 1 , Figure 2 , Figures 5-10 As shown in the figure, the embodiment differs from the above-mentioned embodiments in that the hydraulic balance unit comprises a hydraulic plug 26 sealingly installed in the interior of the hydraulic cylinder 21, a piston rod 23 extending above the hydraulic cylinder 21 is fixedly installed at the top end of the hydraulic plug 26, a pressure spring 27 is abuttingly installed at the top surface of the hydraulic plug 26, and a limiting ring 29 supporting the bottom surface of the hydraulic plug 26 is fixedly installed on the inner wall of the hydraulic cylinder 21; the constant-flow valve group comprises an adjusting valve 25, a valve plate 28 is slidingly installed in the interior of the adjusting valve 25, a through hole 210 communicating with the liquid outlet pipe 22 is formed in the valve plate 28, a lifting frame 24 extending above the adjusting valve 25 is fixedly installed at the top end of the valve plate 28, and the top end of the lifting frame 24 is fixedly connected with the top end of the piston rod 23, and sealing rings 211 are installed at the upper and lower ends of the valve plate 28;

[0054] Wherein, the hydraulic plug 26 is initially abuttingly installed on the limiting ring 29 under the pressure action of the pressure spring 27, and the through hole 210 on the valve plate 28 is opposite to the liquid outlet pipe 22, when the water in the water inlet and outlet pipe group is transported into the hydraulic cylinder 21, the hydraulic plug 26 slides upward under the water pressure, and the pressure spring 27 is abuttingly retracted, so that the elastic force of the pressure spring 27 gradually increases, at the same time, the hydraulic plug 26 drives the piston rod 23 and the lifting frame 24 to move upward, so that the lifting frame 24 drives the valve plate 28 to move upward, so that the through hole 210 on the valve plate 28 gradually deviates from the liquid outlet pipe 22, so as to reduce the delivery cross section of the liquid outlet pipe 22, until the elastic force of the pressure spring 27 is balanced with the water pressure, the hydraulic plug 26 remains stationary, and the delivery cross section of the liquid outlet pipe 22 remains stable;

[0055] When the water pressure is greater, the water flow rate is faster, at this time, by reducing the delivery cross section of the liquid outlet pipe 22, the flow of the liquid outlet pipe 22 can be limited, correspondingly, when the water pressure decreases, the water flow rate slows down, at this time, by increasing the delivery cross section of the liquid outlet pipe 22, the flow of the liquid outlet pipe 22 can be increased, so that the liquid outlet pipe 22 can be pressure-regulated at different water pressures, so that the flow of the liquid outlet pipe 22 remains unchanged, and then the flow between the concentrated water chamber 116 and the pure water chamber 117 remains unchanged.

[0056] Embodiment four

[0057] Please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 9 , Figure 11The difference between the embodiment and the above-mentioned embodiments is that the flow regulating assembly 3 comprises a pressing plate 310 and a lifting regulating unit. The pressing plate 310 is slidingly installed at the upper end inside the hydraulic cylinder 21 and abuts against the top end of the pressure spring 27. The top surface of the pressing plate 310 is fixedly installed with a plurality of lifting rods 39 extending above the hydraulic cylinder 21. The top end of the lifting rod 39 is fixedly installed with a lifting plate 38. The lifting regulating unit can regulate the height of the lifting plate 38. The lifting regulating unit comprises a threaded sleeve 37 fixedly installed at the top end of the lifting plate 38. The inside of the upper end of the threaded sleeve 37 is threadedly installed with a rotating shaft 36. The upper end of the rotating shaft 36 is rotatably installed between the cathode film group and the anode film group. The top end of the rotating shaft 36 extends above the cathode film group and the anode film group. The top of the cathode film group and the anode film group is fixedly installed with an outer shell 31 surrounding the top end of the rotating shaft 36. The inside of the outer shell 31 is rotatably installed with an adjusting rod 32. One end of the adjusting rod 32 is fixedly installed with an adjusting knob 34. The adjusting rod 32 is fixedly installed with a plurality of transmission bevel gears 33 corresponding to the rotating shaft 36. The top end of the rotating shaft 36 is fixedly installed with a driven bevel gear 35 in meshing transmission connection with the corresponding transmission bevel gear 33.

[0058] When it is necessary to regulate the flow ratio between the concentrated water and the pure water between the concentrated water chamber 116 and the pure water chamber 117, the adjusting knob 34 at one end of the flow regulating assembly 3 corresponding to the concentrated water chamber 116 or the pure water chamber 117 is rotated to drive the adjusting rod 32 and the plurality of transmission bevel gears 33 thereon to rotate synchronously. When the transmission bevel gears 33 rotate, they mesh to drive the corresponding driven bevel gears 35 to rotate. The driven bevel gears 35 drive the rotating shaft 36 to rotate. When the rotating shaft 36 rotates, it drives the threaded sleeve 37 at the bottom end to perform lifting regulation. At the same time, the threaded sleeve 37 drives the pressing plate 310 to perform lifting regulation through the lifting plate 38 and the lifting rod 39. When the pressing plate 310 moves upward, it relaxes the extrusion on the pressure spring 27. Thus, the pressure spring 27 can subsequently move upward to a greater height under the action of water pressure. In turn, the valve plate 28 moves upward to a greater height to reduce the delivery cross section and flow of the liquid outlet pipe 22. When the pressing plate 310 moves downward, it continues to extrude the pressure spring 27. Thus, the pressure spring 27 shrinks to increase the elastic force. Subsequently, the pressure spring 27 moves upward to a smaller distance under the action of water pressure. In turn, the valve plate 28 moves upward to a smaller distance to increase the delivery cross section and flow of the liquid outlet pipe 22. Thus, by regulating the delivery flow of the liquid outlet pipe 22, the flow ratio between the concentrated water chamber 116 and the pure water chamber 117 is regulated and changed. The flow ratio between the concentrated water chamber 116 and the pure water chamber 117 is in a better water quality treatment state.

[0059] Embodiment five

[0060] Please refer to Figures 1-11As shown, the embodiment discloses a chemical water treatment method, taking the preparation of pure water commonly used in chemical experiments from tap water as an example, and specifically comprising the following treatment steps:

[0061] Firstly, the concentrated water and the clean water are simultaneously delivered to the concentrated water chamber 116 and the pure water chamber 117 respectively through the water inlet and outlet pipe group and the plurality of constant flow liquid inlet assemblies 2, and when the constant flow liquid inlet assemblies 2 receive the water from the water inlet and outlet pipe group, the hydraulic balance unit in the hydraulic cylinder 21 can move upward and shrink under the water pressure of the water inlet to balance the water pressure, and can adjust the opening size of the valve of the constant flow valve group in the process of balancing the water pressure to make the water inlet of the water inlet and outlet pipe group be delivered to the concentrated water chamber 116 and the pure water chamber 117 through the liquid outlet pipe 22 at a constant flow, and then the concentrated water and the clean water flow through the concentrated water chamber 116 and the pure water chamber 117 respectively at a specific flow rate ratio;

[0062] When the clean water flows through the pure water chamber 117, the anion impurities in the clean water are attracted by the anode 13, migrate to the concentrated water chamber 116 near the anode 13 through the ion exchange resin and the cathode membrane group, and the cation impurities in the clean water are attracted by the cathode 118, migrate to the concentrated water chamber 116 near the cathode 118 through the ion exchange resin and the anode membrane group, so as to gradually remove the ion impurities in the clean water and prepare pure water;

[0063] When it is necessary to adjust the flow rate ratio of the concentrated water and the clean water flowing through the concentrated water chamber 116 and the pure water chamber 117, the initial pressure of the hydraulic balance unit at the water inlet end of the concentrated water chamber 116 or the pure water chamber 117 is adjusted by the flow rate adjusting assembly 3 to adjust the contraction length of the hydraulic balance unit in the process of keeping the pressure in the hydraulic balance unit balanced with the water pressure at the water inlet end of the water inlet and outlet pipe group, and then adjust the opening size of the valve of the constant flow valve group and the flow rate during pressure balancing.

[0064] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the invention. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] The preferred embodiments of the above disclosed invention are only used to help explain the invention. The preferred embodiments do not describe all the details and limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the invention, so that those skilled in the art can well understand and utilize the invention.

Claims

1. An electrodeionization water treatment apparatus comprising an electrodeionization assembly, characterized by: The electrodeionization assembly comprises a front end plate, a rear end plate and an inlet and outlet water pipe group, an anode is fixedly installed on the outer side of the front end plate, a cathode is fixedly installed on the outer side of the rear end plate, a plurality of staggered cathode membrane groups and anode membrane groups are fixedly installed between the front end plate and the rear end plate, and the plurality of staggered cathode membrane groups and anode membrane groups are isolated to form a plurality of staggered concentrated water chambers and pure water chambers between the front end plate and the rear end plate; The inlet and outlet water pipe group is in communication with the plurality of concentrated water chambers and pure water chambers at the same time, and is used for feeding water and draining water in the concentrated water chambers and pure water chambers, and a constant flow liquid inlet assembly is installed on the water inlet end of the inlet and outlet water pipe group in each concentrated water chamber and pure water chamber. The constant flow liquid inlet assembly comprises a hydraulic cylinder and a liquid outlet pipe, a hydraulic balance unit is installed in the hydraulic cylinder, the liquid outlet pipe is connected and installed on one side of the hydraulic cylinder, a constant flow valve group is installed in the liquid outlet pipe, the hydraulic balance unit can move upward and shrink under the water pressure of the water inlet end of the inlet and outlet water pipe group, and the internal pressure of the hydraulic balance unit gradually increases during the shrinking process until the pressure in the hydraulic balance unit is balanced with the water pressure of the water inlet end of the inlet and outlet water pipe group, and the hydraulic balance unit can adjust the valve opening size of the constant flow valve group during the process of balancing the water pressure to make the valve opening size of the constant flow valve group smaller when the water pressure is larger and the valve opening size of the constant flow valve group larger when the water pressure is smaller. A flow adjusting assembly is fixedly installed on the top end of the constant flow liquid inlet assembly, and the flow adjusting assembly can adjust the initial pressure of the hydraulic balance unit to adjust the shrinkage length and pressure balance of the constant flow valve group during the process of balancing the pressure in the hydraulic balance unit with the water pressure of the water inlet end of the inlet and outlet water pipe group.

2. An electrodeionization water treatment apparatus as defined in claim 1, wherein: The cathode membrane group comprises a cathode membrane frame and an anion exchange membrane fixedly installed in the inner circle of the cathode membrane frame, the anode membrane group comprises an anode membrane frame and a cation exchange membrane fixedly installed in the inner circle of the anode membrane frame, and a plurality of the cathode membrane frames and anode membrane frames are sequentially and staggeredly sealed and connected to isolate and form a plurality of staggered concentrated water chambers and pure water chambers between the anion exchange membrane and the cation exchange membrane.

3. An electrodeionization water treatment apparatus as defined in claim 1, wherein: The inlet and outlet water pipe group comprises a clean water inlet, a concentrated water inlet, a concentrated water outlet and a pure water outlet fixedly installed on the front end plate, the inner side end of the clean water inlet is connected and installed with a clean water liquid distribution pipe extending into a plurality of pure water chambers at the same time, and a plurality of constant flow liquid inlet assemblies corresponding to the pure water chambers one by one are connected and installed on the clean water liquid distribution pipe; The inner side end of the concentrated water inlet is connected and installed with a concentrated water liquid distribution pipe extending into a plurality of concentrated water chambers at the same time, and a plurality of constant flow liquid inlet assemblies corresponding to the concentrated water chambers one by one are connected and installed on the concentrated water liquid distribution pipe; The inner side end of the concentrated water outlet is connected and installed with a concentrated water return pipe in communication with a plurality of concentrated water chambers at the same time, and the inner side end of the pure water outlet is connected and installed with a pure water return pipe in communication with a plurality of pure water chambers at the same time.

4. An electrodeionization water treatment apparatus as defined in claim 1, wherein: A plurality of connecting rods are arranged between the front end plate and the rear end plate, one end of the connecting rod is fixedly installed with an abutting end head abutting against the outer side of the front end plate, and the other end of the connecting rod is fixedly installed with a nut abutting against the outer side of the rear end plate.

5. An electrodeionization water treatment apparatus as defined in claim 1, wherein: The hydraulic balance unit comprises a hydraulic plug, which is slidingly installed in the interior of a hydraulic cylinder, a piston rod extending above the hydraulic cylinder is fixedly installed at the top end of the hydraulic plug, a pressure spring is abuttingly installed at the top surface of the hydraulic plug, and a limiting ring supported at the bottom surface of the hydraulic plug is fixedly installed on the inner wall of the hydraulic cylinder.

6. An electrodeionization water treatment apparatus as claimed in claim 5, wherein: The constant flow valve group comprises an adjusting valve, a valve plate is slidingly installed in the interior of the adjusting valve, a through hole communicating with the liquid outlet pipe is formed in the valve plate, a lifting frame extending above the adjusting valve is fixedly installed at the top end of the valve plate, and the top end of the lifting frame is fixedly connected with the top end of the piston rod, and sealing rings are installed at the upper and lower ends of the valve plate.

7. An electrodeionization water treatment apparatus as defined in claim 5, wherein: The flow adjusting assembly comprises a pressing plate and a lifting adjusting unit, the pressing plate is slidingly installed at the upper end in the interior of the hydraulic cylinder and abuts against the top end of the pressure spring, a plurality of lifting rods extending above the hydraulic cylinder are fixedly installed at the top surface of the pressing plate, and lifting plates are fixedly installed at the top ends of the lifting rods.

8. An electrodeionization water treatment apparatus as defined in claim 7, wherein: The lifting adjusting unit comprises a threaded sleeve fixedly installed at the top end of the lifting plate, a rotating shaft is threadedly installed in the interior of the upper end of the threaded sleeve, the rotating shaft is rotatably installed between the cathode film group and the anode film group, and the top end of the rotating shaft extends above the cathode film group and the anode film group.

9. An electrodeionization water treatment apparatus as defined in claim 8, wherein: The top portions of the cathode film group and the anode film group are fixedly installed with an outer shell surrounding the top end of the rotating shaft, an adjusting rod is rotatably installed in the interior of the outer shell, an adjusting knob is fixedly installed at one end of the adjusting rod, a plurality of transmission bevel gears corresponding to the rotating shaft are fixedly installed on the adjusting rod, and a driven bevel gear is fixedly installed at the top end of the rotating shaft and engaged with the corresponding transmission bevel gear.

10. A method for treating chemical water, using the electrodeionization water treatment apparatus according to any one of claims 1 to 9, characterized by, The method comprises the following steps: Firstly, the concentrated water and the clean water are simultaneously delivered to the concentrated water chambers and the pure water chambers respectively through the water inlet and outlet pipe group and the plurality of constant flow liquid inlet assemblies, and when the constant flow liquid inlet assemblies receive the water from the water inlet and outlet pipe group, the hydraulic balance unit in the hydraulic cylinder can move upward and shrink under the water pressure of the inlet water to balance the water pressure, and the opening size of the valve of the constant flow valve group can be adjusted in the process of balancing the water pressure to make the inlet water of the water inlet and outlet pipe group be delivered to the concentrated water chambers and the pure water chambers through the liquid outlet pipe at a constant flow, so that the concentrated water and the clean water flow through the concentrated water chambers and the pure water chambers at a specific flow rate ratio; When the clean water flows through the pure water chambers, the anion impurities in the clean water are attracted by the anode, migrate to the concentrated water chambers near the anode through the ion exchange resin and the cathode film group, the cation impurities in the clean water are attracted by the cathode, migrate to the concentrated water chambers near the cathode through the ion exchange resin and the anode film group, so as to gradually remove the ion impurities in the clean water, and the pure water is prepared; When it is necessary to adjust the flow ratio of the concentrated water and the clean water flowing through the concentrated water chambers and the pure water chambers, the initial pressure of the hydraulic balance unit at the water inlet end of the concentrated water chamber or the pure water chamber is adjusted through the flow adjusting assembly to adjust the shrinkage length of the hydraulic balance unit in the process of keeping the pressure in the hydraulic balance unit balanced with the water pressure at the water inlet end of the water inlet and outlet pipe group, and then the opening size of the valve of the constant flow valve group and the flow during pressure balancing are adjusted.

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