An electrodeionization ultrapure water equipment and its control method

Abstract

The present invention discloses an electrodeionization ultrapure water device and its control method, which relates to the technical field of electrodeionization. It includes an EDI body, and concentrated water partitions and fresh water partitions alternately arranged in the EDI body. Diaphragms are provided on both the fresh water partitions and the concentrated water partitions. A movable hollow broken layer is provided on the rear side and inner wall of each concentrated water partition and fresh water partition. In this electrodeionization ultrapure water device, through the setting of the sealing plate and the connecting components, when scale forms into blocks at a certain part in the resin layer, the sealing plate and the auxiliary moving plate close to the scale block will separate due to the water pressure. When the two broken blocks approach each other, the resin with scale formed into blocks will be broken, so as to promote the normal flow of water, and further ensure the water output and water quality.

Description

Technical Field

[0001] The present invention relates to the technical field of electrodeionization, and more specifically, to an electrodeionization ultrapure water device and a control method thereof. Background Art

[0002] Ultrapure water is water in which impurities such as ions, organic substances, particles, microorganisms, and dissolved gases in water are reduced to extremely low levels through a series of physical and chemical treatments, and ultrapure water is used in many fields. For example: semiconductor manufacturing (for key processes such as cleaning, etching, doping, etc., to ensure the yield and reliability of semiconductor products), biotechnology and medicine (as a component of solvents or culture media to ensure that no impurities that may interfere with biological activity or experimental results are introduced), the power industry (especially in nuclear power plants, used as coolant and chemical reagents to maintain the safe and efficient operation of nuclear reactors), etc. At the same time, with the development and technological progress of industries such as pharmaceuticals, electronics, semiconductors, and chemicals, the demand for high-purity water is also increasing. Therefore, the devices for producing ultrapure water have also been improved with the development of technology.

[0003] Among them, EDI is an essential device for producing ultrapure water. However, when the EDI device performs electrodeionization on water, the resin often scales. Especially when the concentrations of calcium and magnesium ions in the water are relatively high, they easily exchange with anions and cations in the resin and form insoluble salts such as calcium carbonate and magnesium carbonate on the resin surface, resulting in the resin scaling and agglomerating. The resin scaling will block the water production channel, increase the resistance of the water flow through the resin layer, and thus significantly reduce the water production. The scaled resin will reduce its ion exchange capacity, increase the ion content in the effluent, and the water quality will not meet the standard. Especially for applications that require high-purity water, such as semiconductor manufacturing and pharmaceutical production, the decline in the effluent water quality will directly affect the quality and performance of the products.

[0004] For example, the Chinese patent with the application number CN202322347300.4 is an improvement aimed at the resin scaling problem. However, it only cleans the surface of the resin plate, and the problem of the resin scaling and agglomerating inside is not solved at all. Therefore, the EDI device will still have the situations of significant decline in water production, increase in ion content in the effluent, and non-compliance of water quality.

[0005] Therefore, the present invention proposes a device for mixing thick and thin pulp for papermaking to solve the above problems. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides an electrodeionization ultrapure water device and a control method thereof, which solve the problems raised in the above background art.

[0007] The technical solution of the present invention is as follows: An electrodeionization ultrapure water device includes an EDI body, and concentrated water partitions and fresh water partitions alternately arranged in the EDI body. Diaphragms are provided on both the fresh water partitions and the concentrated water partitions. A movable hollow broken layer is provided on the rear side and the inner wall of each concentrated water partition and fresh water partition. The hollow broken layer provided on the inner wall of the concentrated water partition and the fresh water partition can perform relative movement with the hollow broken layer provided on the rear side of the concentrated water partition and the fresh water partition. The hollow broken layer includes a plurality of broken blocks that can move independently back and forth. A telescopic connecting member is ball-jointed between every two adjacent broken blocks. The broken blocks moving forward and the broken blocks moving backward are arranged in an interleaved manner.

[0008] The hollow broken layer moving forward also includes mounting plates provided on the inner side walls of the fresh water partitions and the concentrated water partitions. A secondary moving plate is slidably connected back and forth on one side of each broken block close to the diaphragm. A first secondary fixing circular plate is slidably connected to the side of the secondary moving plate away from the broken block. A first fixing rod is fixedly connected between every two adjacent first secondary fixing circular plates. The first secondary fixing circular plate closest to the inner wall of the fresh water partition and the concentrated water partition is fixedly connected to the fresh water partition and the concentrated water partition through the first fixing rod, and the first secondary fixing circular plate closest to the inner wall of the mounting plate is fixedly connected to the mounting plate through the first fixing rod.

[0009] Preferably, a secondary limiting plate is fixedly connected to the center of the side of the secondary moving plate close to the first secondary fixing circular plate, and the secondary limiting plate is slidably connected within the first secondary fixing circular plate.

[0010] Preferably, a first cross partition plate is fixedly connected to the center of the side of the secondary moving plate close to the broken block. A second cross partition plate is slidably connected to the end of the first cross partition plate away from the secondary moving plate. A sealing plate is provided at the end of the second cross partition plate away from the first cross partition plate.

[0011] Preferably, the connecting member includes first limiting ball heads uniformly fixedly connected to the outer peripheral surface of the broken block. The outer peripheral surface of the broken block is ball-jointed with a broken cylinder through the first limiting ball head. A broken column is slidably connected between the opposite ends of two adjacent broken cylinders. First tension springs fixedly connected to the corresponding broken cylinders are provided at both ends of the broken column.

[0012] Preferably, a pressure-receiving groove is formed at the center of the side of the broken block close to the auxiliary moving plate. The first cross partition plate and the second cross partition plate are both arranged in the pressure-receiving groove, and the four end faces of the first cross partition plate and the second cross partition plate are all in contact with the inner peripheral surface of the pressure-receiving groove. A sealing plate capable of inclining towards the angle between two adjacent connecting components is arranged on the side of the second cross partition plate away from the first cross partition plate, and the outer peripheral surface of the sealing plate is attached to the inner peripheral surface of the pressure-receiving groove. One end of the first cross partition plate close to the second cross partition plate is fixedly connected with an auxiliary connecting cylinder, and the end of the auxiliary connecting cylinder away from the first cross partition plate is fixedly connected with a second auxiliary fixing circular plate capable of sliding in the second cross partition plate. One side of the second auxiliary fixing circular plate away from the auxiliary connecting cylinder is fixedly connected with a second tension spring arranged on the inner side surface of the second cross partition plate.

[0013] Preferably, a second limiting ball head is fixedly connected to the center of the side of the second cross partition plate away from the first cross partition plate. The sealing plate is ball-jointed to the second cross partition plate through the second limiting ball head. The shape of the outer peripheral surface of the sealing plate is a spherical surface centered on the second limiting ball head. An annular limiting groove adapted to the sealing plate is formed on the inner peripheral surface of the pressure-receiving groove. Four limiting channels are evenly formed on the inner peripheral surface of the annular limiting groove. A plurality of auxiliary driving cylinders are evenly fixedly connected to the outer peripheral surface of the sealing plate. Each auxiliary driving cylinder is respectively slidably connected in the corresponding limiting channel. The ends of the four auxiliary driving cylinders away from the sealing plate are jointly rotatably connected to an auxiliary sealing cylinder centered on the second limiting ball head, and the auxiliary sealing cylinder is slidably connected in the broken block.

[0014] Preferably, an annular channel is formed at the end of the inner peripheral surface of the pressure-receiving groove away from the auxiliary moving plate. A first connecting channel is formed on the outer peripheral surface of the first limiting ball head. A second connecting channel communicating with the first connecting channel is formed on the inner side wall of the crushing cylinder. A first communicating groove communicating with the first connecting channel is formed on the outer peripheral surface of the broken block, and the first communicating groove also communicates with the annular channel.

[0015] Preferably, a sealing driving hemispherical cover centered on the second limiting ball head is fixedly connected to one side of the sealing plate close to the second cross partition plate. The end of the sealing driving hemispherical cover away from the sealing plate is slidably connected in the second cross partition plate. A plurality of driving grooves capable of communicating with the limiting card slots are evenly formed on the outer surface of the sealing driving hemispherical cover. A plurality of auxiliary support plates are evenly fixedly connected to one end of the outer peripheral surface of the second cross partition plate away from the first cross partition plate. One side of the auxiliary support plate is fixedly connected to a first spring with one end disposed on the sealing plate. One side of the second auxiliary fixing circular plate close to the second limiting ball head is fixedly connected to a second fixing rod that sequentially passes through the second cross partition plate and the second limiting ball head and extends into the broken block. A blocking block is fixedly connected to the end of the second fixing rod away from the second limiting ball head. A plurality of pressure relief openings are formed on the side of the broken block away from the auxiliary moving plate. An auxiliary pressure relief groove communicating with the pressure relief openings is formed at the center of the inner side of the pressure receiving groove, and the blocking block is slidably connected in the auxiliary pressure relief groove.

[0016] The present invention also provides a control method for an electrodeionization ultrapure water device, including the following steps:

[0017] S1. Open the inlet pipe valve to prompt the water to be ionized to enter the EDI body.

[0018] S2. Under the continuous operation of the EDI body, ultrapure water will be continuously discharged, and concentrated brine will also be continuously discharged.

[0019] S3. When scale blocks appear locally in the resin layer in the EDI body, the broken blocks will move and then crush the lumps.

[0020] S4. Finally, when it is necessary to discharge the crushed scale debris, connect the water inlet to the pulse water pipe to inject pulse water into the EDI body, so that the scale debris will be discharged from the EDI body together with the water.

[0021] The present invention has the following beneficial effects:

[0022] 1. For this electrodeionization ultrapure water device, through the setting of the sealing plate and the connecting components, when scale forms in a certain part of the resin layer, the sealing plate and the auxiliary moving plate close to the scale block will separate due to the water pressure (because in the initial setting, the pulling force of the second tension spring is equal to the normal water pressure, so when the local water pressure increases, the water will enter the broken block, causing the broken block to separate from the auxiliary moving plate). Therefore, when the two broken blocks approach each other, the scale-formed resin will be broken, enabling the water to flow normally.

[0023] 2. In the electrodeionized ultrapure water equipment, when the water pressure acts on the sealing drive hemispherical cover, it will cause its broken pieces to move in the direction away from the auxiliary movable plate, and at the same time, it will cause its sealing plate to tilt. Therefore, when the sealing plate tilts, it will also tilt with the auxiliary sealing cylinder. At the same time, when one end of the auxiliary sealing cylinder tilts, the other end will tilt up. Therefore, the auxiliary sealing cylinder will close the two first connecting grooves on the tilted end (when the auxiliary sealing cylinder is in the initial position, the auxiliary sealing cylinder has closed half of the first connecting groove). Therefore, when the driving groove is subjected to water pressure, As it continues to increase, the inclination angle of the sealing plate will become larger and larger, and eventually the driving groove will be connected to the limit card channel, so that the liquid will pass through the auxiliary driving cylinder into the pressure groove on the side of the sealing plate away from the auxiliary movable plate, and finally pass through the annular channel, the first connecting groove, the first connecting channel and the second connecting channel in sequence into the crushing barrel, so that when the two crushing barrels at the upper end away from the sealing plate are subjected to water pressure, the two crushing blocks can be prompted to move relative to each other while moving closer to each other, so that the scaling blocks can be crushed more accurately and finely, so that the water flow can be promoted to flow better. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a schematic structural diagram of the rear cross-section of the concentrated water separator of the present invention.

[0026] Figure 3 It is a partial cross-sectional structural schematic diagram of the fresh water separator and the concentrated water separator of the present invention from the right side.

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of the structure enlarged at point B.

[0028] Figure 5 It is a schematic diagram of the right side cross-sectional structure of the crushing block and crushing barrel of the present invention.

[0029] Figure 6 For the present invention Figure 5 Schematic diagram of the structure enlarged at point A in the middle.

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the first cross partition plate and the second cross partition plate of the present invention.

[0031] Figure 8 It is a structural schematic diagram of the auxiliary sealing cylinder of the present invention.

[0032] Figure 9 It is a partial structural schematic diagram of the hollow crushing layer of the present invention from the right side.

[0033] Figure 10 This is a schematic structural diagram of the separation of the broken block and the auxiliary moving plate of the present invention.

[0034] Figure 11 This is a schematic structural diagram of the two broken blocks of the present invention facing the scaling block and being relatively stationary.

[0035] Figure 12 This is a schematic structural diagram of the two broken blocks of the present invention moving diagonally with respect to the scaling block.

[0036] Figure 13 This is a schematic structural diagram of the sealed drive hemispherical cover of the present invention.

[0037] Figure 14 This is a schematic structural diagram of a partial section of the sealed drive hemispherical cover of the present invention.

[0038] In the figure: 1. EDI body; 2. Fresh water partition; 3. Concentrated water partition; 4. Anion membrane; 5. Mounting plate; 6. Cation membrane; 7. Auxiliary moving plate; 8. First fixing rod; 9. Broken block; 10. Broken cylinder; 11. Broken column; 12. First limit ball head; 13. First tension spring; 14. First connecting channel; 15. First cross partition plate; 16. Auxiliary limit plate; 17. Second cross partition plate; 18. Second limit ball head; 19. Sealing plate; 20. Auxiliary sealing cylinder; 21. Auxiliary drive cylinder; 22. Second connecting channel; 23. Sealed drive hemispherical cover; 24. Drive groove; 25. Cross channel; 26. Annular channel; 27. Blocking block; 28. Second fixing rod; 29. Auxiliary support plate; 30. First spring; 31. First communication groove; 32. First auxiliary fixing circular plate; 34. Auxiliary connecting cylinder; 35. Second auxiliary fixing circular plate; 36. Second tension spring. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Embodiment 1

[0041] When the EDI device performs electro-deionization on water, scaling often occurs in the resin. Especially when the concentrations of calcium and magnesium ions in the water are relatively high, they easily exchange with the anions and cations in the resin and form insoluble salts such as calcium carbonate and magnesium carbonate on the resin surface, resulting in the resin scaling and agglomerating. The scaling of the resin will block the water production channel, increase the resistance of the water flow through the resin layer, and thus significantly reduce the water production. The scaled resin will reduce its ion exchange capacity, increase the ion content in the effluent, and the water quality will not meet the standards. To solve the above problems, this embodiment is specifically invented.

[0042] Please refer to Figures 1 to 14 , the present invention provides a technical solution: an electro-deionized ultrapure water device, including an EDI body 1 and concentrated water partitions 3 and fresh water partitions 2 alternately arranged in the EDI body 1. Diaphragms are provided on both the fresh water partition 2 and the concentrated water partition 3. The diaphragms are anion membranes 4 and cation membranes 6, and they are also alternately arranged. At the same time, the working principles of the fresh water partition 2, the concentrated water partition 3, the cation membrane 6, and the anion membrane 4 are all prior arts, so no detailed description will be given here. A hollow and broken layer with a backward movement direction is provided at the rear side of each concentrated water partition 3 and fresh water partition 2, and a hollow and broken layer with a forward movement direction is provided on the inner walls of the concentrated water partition 3 and the fresh water partition 2. The hollow and broken layer includes a plurality of broken blocks 9 that can move independently back and forth. A telescopic connecting member is ball-jointed between every two adjacent broken blocks 9. The broken blocks 9 with a forward movement direction and the broken blocks 9 with a backward movement direction are arranged in an alternating manner.

[0043] The hollow and broken layer with a forward movement direction further includes a mounting plate 5 provided on the inner side walls of the fresh water partition 2 and the concentrated water partition 3. The mounting plate 5 is snap-connected to the fresh water partition 2 and the concentrated water partition 3. At the same time, the snap-connection position avoids the water inlet and the water outlet. And through the mounting plate 5, the anion membrane 4 or the cation membrane 6 can be stably fixed on the corresponding partition. On one side of each broken block 9 close to the diaphragm, an auxiliary moving plate 7 is slidably connected back and forth. One side of the auxiliary moving plate 7 close to the broken block 9 abuts against the broken block 9. On the side of the auxiliary moving plate 7 away from the broken block 9, a first auxiliary fixing circular plate 32 is slidably connected. A first fixing rod 8 is fixedly connected between every two adjacent first auxiliary fixing circular plates 32. The first auxiliary fixing circular plate 32 closest to the inner walls of the fresh water partition 2 and the concentrated water partition 3 is also fixedly connected to the fresh water partition 2 and the concentrated water partition 3 through the first fixing rod 8. And the first auxiliary fixing circular plate 32 closest to the inner wall of the mounting plate 5 is also fixedly connected to the mounting plate 5 through the first fixing rod 8. Therefore, the first auxiliary fixing circular plates 32 on each hollow and broken layer are all fixed and immovable.

[0044] A secondary moving plate 7 is fixedly connected to the center of one side close to the first secondary fixed circular plate 32, and a secondary limiting plate 16 is slidably connected within the first secondary fixed circular plate 32. The shape of the secondary limiting plate 16 is a circular plate, and the shape of the groove formed in the first secondary fixed circular plate 32 is also that of a circular plate. However, the secondary limiting plate 16 can slide in any direction within this groove. Therefore, when the broken block 9 is subjected to an external force, it will drive the secondary moving plate 7 to move together.

[0045] A first cross partition plate 15 is fixedly connected to the center of one side of the secondary moving plate 7 close to the broken block 9, and a second cross partition plate 17 is slidably connected to the end of the first cross partition plate 15 away from the secondary moving plate 7. A sealing plate 19 is provided at the end of the second cross partition plate 17 away from the first cross partition plate 15.

[0046] A secondary connecting cylinder 34 is fixedly connected to the end of the first cross partition plate 15 close to the second cross partition plate 17. A second secondary fixed circular plate 35 that can slide within the second cross partition plate 17 is fixedly connected to the end of the secondary connecting cylinder 34 away from the first cross partition plate 15. Among them, the secondary connecting cylinder 34 is slidably connected to the second cross partition plate 17. A second tension spring 36 with one end disposed on the inner side surface of the second cross partition plate 17 is fixedly connected to the side of the second secondary fixed circular plate 35 away from the secondary connecting cylinder 34.

[0047] Therefore, when scaling and caking occur in a certain part of the resin layer, the water pressure around the scaling block will increase. Therefore, the sealing plate 19 and the secondary moving plate 7 close to the scaling block will be separated due to the water pressure (because in the initial setting, the pulling force of the second tension spring 36 is equal to the normal water pressure. Therefore, when the local water pressure increases, water will enter the broken block 9, thereby promoting the separation of the broken block 9 and the secondary moving plate 7). So when the two broken blocks 9 approach each other, they will break the caked resin, thereby promoting the normal flow of water.

[0048] Embodiment Two

[0049] In the above-mentioned embodiment, although the resin scaling block can also be broken, the structural block may not necessarily appear directly opposite the broken block 9. Therefore, when breaking the scaling block, it is often the connecting components that play a role. Therefore, the breaking effect is relatively poor, and the scaling block cannot be accurately extruded. Therefore, in order to better and more accurately break the resin scaling block, this embodiment is specifically invented.

[0050] Please refer to Figures 1 to 14, on the basis of the above embodiments, the adopted technical solution includes a connecting component. The connecting component includes a first limiting ball head 12 fixedly connected to the outer peripheral surface of the crushing block 9 evenly. The outer peripheral surface of the crushing block 9 is ball-jointed with a crushing cylinder 10 through the first limiting ball head 12. A crushing column 11 is slidably connected to the opposite ends of two adjacent crushing cylinders 10. First tension springs 13 are fixedly connected to one end of both ends of the crushing column 11 on the corresponding crushing cylinder 10. When the crushing block 9 moves towards the resin with scale formed into blocks, the crushing cylinder 10 will rotate on the first limiting ball head 12, and the crushing cylinder 10 and the crushing column 11 will slide relative to each other.

[0051] A pressure receiving groove is provided at the center of the side of the crushing block 9 close to the auxiliary moving plate 7. The first cross partition plate 15 and the second cross partition plate 17 are both arranged in the pressure receiving groove, and the four end faces of the first cross partition plate 15 and the second cross partition plate 17 are in contact with the inner peripheral surface of the pressure receiving groove. A sealing plate 19 capable of tilting towards the angle between two adjacent connecting components is provided on the side of the second cross partition plate 17 away from the first cross partition plate 15, and the outer peripheral surface of the sealing plate 19 is attached to the inner peripheral surface of the pressure receiving groove.

[0052] A second limiting ball head 18 is fixedly connected to the center of the side of the second cross partition plate 17 away from the first cross partition plate 15. The sealing plate 19 is ball-jointed to the second cross partition plate 17 through the second limiting ball head 18. Therefore, the sealing plate 19 can tilt in the direction of the four angles. An annular limiting groove adapted to the sealing plate 19 is provided on the inner peripheral surface of the pressure receiving groove. The shape of the outer peripheral surface of the sealing plate 19 is a spherical surface centered on the second limiting ball head 18. Four limiting channels are evenly provided on the inner peripheral surface of the annular limiting groove. Each limiting channel is arranged on the angular bisector of two adjacent connecting components. A plurality of auxiliary driving cylinders 21 are evenly and fixedly connected to the outer peripheral surface of the sealing plate 19. Each auxiliary driving cylinder 21 is slidably connected in the corresponding limiting channel. A cross channel 25 is provided in the middle of each auxiliary driving cylinder 21. One end of the four auxiliary driving cylinders 21 away from the sealing plate 19 is jointly rotatably connected to an auxiliary sealing cylinder 20 centered on the second limiting ball head 18. The auxiliary sealing cylinder 20 is slidably connected in the crushing block 9. Through the arrangement of the limiting channels and the auxiliary driving cylinders 21, the sealing plate 19 can only tilt in the direction of the angular bisector of two connecting components, and when the sealing plate 19 tilts, the auxiliary driving cylinders 21 can cause the auxiliary sealing cylinder 20 to tilt together with it (the sealing plate 19 is centered on the second limiting ball head 18, and at the same time the auxiliary sealing cylinder 20 is also centered on the second limiting ball head 18).

[0053] An annular channel 26 is provided at one end of the inner circumference of the pressure groove away from the auxiliary movable plate 7, a first connecting channel 14 is provided on the outer circumference of the first limiting ball head 12, and a second connecting channel 22 connected to the first connecting channel 14 is provided on the inner side wall of the crushing barrel 10, and a first connecting groove 31 connected to the first connecting channel 14 is provided on the outer circumference of the crushing block 9, and the first connecting groove 31 is also connected to the annular channel 26.

[0054] The sealing plate 19 is fixed to the side close to the second cross partition plate 17 with the second limiting ball head 18 as the ball center. The end of the sealing driving hemispherical cover 23 away from the sealing plate 19 is slidably connected to the second cross partition plate 17 (such as Figure 5 As shown, no matter when the sealing drive hemispherical cover 23 moves in any direction along with the sealing plate 19, the end of the sealing drive hemispherical cover 23 that is slidably connected to the second cross partition plate 17 will not come out of the second cross partition plate 17, thereby preventing liquid from entering the sealing drive hemispherical cover 23). The outer surface of the sealing drive hemispherical cover 23 is evenly provided with a plurality of driving grooves 24 that can be connected to the limit card channel. Through the setting of the driving grooves 24, when the liquid enters the broken block 9, the water pressure can act on the sealing drive hemispherical cover 23. The outer peripheral surface of the second cross partition plate 17 is evenly fixedly connected to one end away from the first cross partition plate 15 with a plurality of auxiliary support plates 29. One side of the auxiliary support plate 29 is fixedly connected to a first spring 30 with one end set on the sealing plate 19. The second auxiliary fixing circle The plate 35 is fixedly connected to one side near the second limiting ball head 18, and one end thereof passes through the second cross dividing plate 17 and the second limiting ball head 18 in sequence and extends to the second fixing rod 28 in the crushing block 9, wherein the second fixing rod 28 and the second limiting ball head 18 are slidably connected, and the second fixing rod 28 and the second cross dividing plate 17 are also slidably connected, and the end of the second fixing rod 28 away from the second limiting ball head 18 is fixedly connected to the blocking block 27, and the crushing block 9 is provided with a plurality of pressure relief ports on the side away from the auxiliary movable plate 7, wherein the number of the pressure relief ports is two, and they are opened relative to each other, and an auxiliary pressure relief groove connected to the pressure relief port is provided in the center of the inner side surface of the pressure groove, and the blocking block 27 is slidably connected in the auxiliary pressure relief groove, wherein a one-way valve is provided at the end of the pressure relief port away from the second limiting ball head 18, so that the liquid can only flow out from the crushing block 9.

[0055] When the water pressure acts on the sealing drive hemispherical cover 23, it will cause the broken block 9 to move away from the auxiliary movable plate 7, and at the same time, it will cause the sealing plate 19 to tilt. Therefore, when the sealing plate 19 tilts, it will tilt with the auxiliary sealing cylinder 20. At the same time, when one end of the auxiliary sealing cylinder 20 tilts, the other end will tilt up. Therefore, the auxiliary sealing cylinder 20 will close the two first communicating grooves 31 near the tilted end (when the auxiliary sealing cylinder 20 is in the initial position, the auxiliary sealing cylinder 20 has closed half of the first communicating grooves 31). Therefore, when the water pressure on the driving groove 24 continues to increase, the sealing plate 19 will tilt. 9 The inclination angle will become larger and larger, and finally the driving groove 24 will be connected with the limit card channel, so that the liquid will pass through the auxiliary driving cylinder 21 and enter the pressure groove of the sealing plate 19 away from the auxiliary movable plate 7. Finally, it will pass through the annular channel 26, the first connecting groove 31, the first connecting channel 14 and the second connecting channel 22 in sequence and enter the crushing barrel 10. When the two crushing barrels 10 at the upper end away from the sealing plate 19 are subjected to water pressure, the two crushing blocks 9 can be prompted to move relative to each other and move closer to each other at the same time, so that the scaling blocks can be crushed more accurately and finely, so that the water flow can be promoted to flow better.

[0056] Example 3

[0057] Although the above embodiment can accurately break up the scaling blocks, some scaling debris will remain in the resin layer after breaking. When these debris remain in the water layer for a long time, the risk of causing scaling will be greatly increased. Therefore, in order to discharge the broken scaling particles, this embodiment is specially invented.

[0058] See also Figures 1 to 14, on the basis of the above embodiments, the adopted technical solution includes that when personnel need to discharge the broken scale particles, the personnel need to connect the water inlet on the EDI body 1 to a device that can emit pulsed water. The device that can emit pulsed water is a commonly used model on the market and is prior art, so no detailed description will be given here. When the pulsed water enters the EDI body 1, the entire hollowed-out crushing layer will shake, and when the pulsed water acts on the resin particles, they will also vibrate as a whole. Therefore, according to the nut effect principle, the smaller broken scale will move downward. At the same time, because the pulsed water is high-pressure water, when the high-pressure water acts on the sealing plate 19 on the hollowed-out crushing layer, the sealing plate itself will also move. Therefore, when the opposite sealing plates 19 move relative to each other, while shaking the resin, they will continuously break the scaled resin, so as to better break the scale and better promote the broken scale to be discharged from the liquid outlet. At this time, the liquid outlet is already connected to the waste water pipe, so when the scale is discharged, it can promote the resin layer to better conduct ion transfer and will not affect the normal flow of water.

[0059] Embodiment Four

[0060] On the basis of the above embodiments, this embodiment also provides a control method for an electrodeionization ultrapure water device, including the following specific steps:

[0061] S1. Open the inlet pipe valve to cause the water to be ionized to enter the EDI body 1;

[0062] S2. Under the continuous operation of the EDI body 1, ultrapure water will be continuously discharged, and concentrated brine will also be continuously discharged;

[0063] S3. When scale lumps appear locally in the resin layer in the EDI body 1, the crushing block 9 will move and then break the lumps;

[0064] S4. Finally, when personnel need to discharge the broken scale debris, they need to connect the water inlet to the pulsed water pipe to inject pulsed water into the EDI body 1, so that the scale debris will be discharged from the EDI body 1 together with the water.

[0065] In summary, when the electrodeionization ultrapure water equipment is in use, the water to be deionized enters the EDI body 1 from the water inlet. After deionization, the ultrapure water is discharged from the pure water outlet, and the concentrated brine is discharged from the concentrated water opening. However, when scale forms in a block in a local area of the resin layer, the water pressure around the scale block will increase. Therefore, the sealing plate 19 and the auxiliary moving plate 7 close to the scale block will be separated due to the water pressure (because in the initial setting, the pulling force of the second tension spring 36 is equal to the normal water pressure. Therefore, when the local water pressure increases, water will enter the crushing block 9, which will cause the crushing block 9 to separate from the auxiliary moving plate 7. At the same time, the water pressure acting on the sealing drive hemispherical cover 23 when water enters the crushing block 9). So when the two crushing blocks 9 approach each other, they will break up the scale-formed resin, thus enabling the water to flow normally.

[0066] When the water pressure acts on the sealing driving hemispherical cover 23, it will cause the crushing block 9 to move away from the auxiliary movable plate 7, and at the same time, it will cause the sealing plate 19 to tilt (because the first cross partition plate 15, the second cross partition plate 17 and the sealing driving hemispherical cover 23 are arranged to divide the space of the pressure groove near the auxiliary movable plate 7 into four separate closed spaces, so the water entering the four separate closed spaces also enters from four different directions. Therefore, when water enters the crushing block 9, there must be a separate closed space closest to the scaling block, so this separate closed space is the same as the water entering the crushing block 9). The water pressure in the enclosed space must be the greatest, so when the water pressure separates the crushing block 9 from the auxiliary movable plate 7, it will also cause the sealing driving hemispherical cover 23 to tilt with the sealing plate 19. The positions of the four separate enclosed spaces are exactly at the angles between each two adjacent connecting parts. Therefore, when the sealing plate 19 tilts, it will tilt with the auxiliary sealing cylinder 20. At the same time, when one end of the auxiliary sealing cylinder 20 tilts, the other end will tilt up. Therefore, the auxiliary sealing cylinder 20 will cut off the two first connecting grooves 31 on the tilted end (in the auxiliary sealing cylinder 20). When the auxiliary sealing cylinder 20 is in the initial position, the auxiliary sealing cylinder 20 has cut off half of the first communicating groove 31. Therefore, when the driving groove 24 is not yet connected to the limit card channel, the auxiliary sealing cylinder 20 has already cut off the first communicating groove 31. At the same time, when the sealing plate 19 continues to tilt, the auxiliary sealing cylinder 20 will continue to rotate in the crushing block 9. Therefore, when the water pressure on the driving groove 24 continues to increase, the tilt angle of the sealing plate 19 will become larger and larger, and finally the driving groove 24 will be connected to the limit card channel, so that the liquid will pass through the auxiliary driving cylinder 21 and enter the sealing plate 19 is in the pressure groove on the side away from the auxiliary movable plate 7 (wherein the liquid passes through the auxiliary driving cylinder 21 from the cross channel 25), and finally enters the crushing barrel 10 through the annular channel 26, the first connecting groove 31, the first connecting channel 14 and the second connecting channel 22 in sequence. Therefore, when the two crushing barrels 10 at the upper end away from the sealing plate 19 are subjected to water pressure, the two crushing blocks 9 can be prompted to move relative to each other and move in the direction of approaching each other, so that the scaling blocks can be crushed more accurately and finely, so that the water flow can be promoted to flow better.

[0067] After the scaling block is broken, the water pressure around it will recover. Therefore, by setting the first spring 30, the sealing plate 19 can be pulled back to its initial position. At the same time, by setting the second tension spring 36, the second cross partition plate 17 can also be pulled back to its initial position. At this time, the water pressure in the crushing cylinder 10 will flow out of the pressure relief port through the crushed block 9, so that the crushed block 9 can drive the auxiliary moving plate 7 to fully return to its initial position. When the crushed block 9 and the auxiliary moving plate 7 are in contact with each other, the blocking block 27 will not block the pressure relief port. At this time, the pressure relief port is connected to the crushed block 9. However, when the crushed block 9 moves away from the auxiliary moving plate 7, the blocking block 27 will block the pressure relief port. Therefore, the liquid entering the pressure receiving groove will not flow out from the pressure relief port.

[0068] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0069] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0070] So far, the technical solutions of the present invention have been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An electrodeionization ultra-pure water device, comprising an EDI body (1), and concentrated water partitions (3) and fresh water partitions (2) alternately arranged in the EDI body (1), and diaphragms are arranged on both the fresh water partitions (2) and the concentrated water partitions (3), characterized in that, A movable hollow crushing layer is provided on the rear side and the inner wall of each concentrated water partition plate (3) and the fresh water partition plate (2), and the hollow crushing layer provided on the inner wall of the concentrated water partition plate (3) and the fresh water partition plate (2) can move relative to the hollow crushing layer provided on the rear side of the concentrated water partition plate (3) and the fresh water partition plate (2). The hollow crushing layer includes a plurality of crushing blocks (9) that can move independently back and forth. A telescopic connecting member is ball-jointed between every two adjacent crushing blocks (9). The crushing blocks (9) moving forward and the crushing blocks (9) moving backward are arranged alternately. The hollow crushing layer moving forward further includes mounting plates (5) provided on the side walls of the fresh water partition plate (2) and the concentrated water partition plate (3). A secondary moving plate (7) is slidably connected back and forth on the side of each crushing block (9) close to the diaphragm. A first secondary fixing circular plate (32) is slidably connected to the side of the secondary moving plate (7) away from the crushing block (9). A first fixing rod (8) is fixedly connected between two adjacent first secondary fixing circular plates (32). The first secondary fixing circular plate (32) closest to the inner walls of the fresh water partition plate (2) and the concentrated water partition plate (3) is fixedly connected to the fresh water partition plate (2) and the concentrated water partition plate (3) through the first fixing rod (8), and the first secondary fixing circular plate (32) closest to the inner wall of the mounting plate (5) is fixedly connected to the mounting plate (5) through the first fixing rod (8). A secondary limiting plate (16) is fixedly connected to the center of the side of the secondary moving plate (7) close to the first secondary fixing circular plate (32), and the secondary limiting plate (16) is slidably connected within the first secondary fixing circular plate (32). A first cross partition plate (15) is fixedly connected to the center of the side of the secondary moving plate (7) close to the crushing block (9), and a second cross partition plate (17) is slidably connected to the end of the first cross partition plate (15) away from the secondary moving plate (7). A sealing plate (19) is provided at the end of the second cross partition plate (17) away from the first cross partition plate (15). The connecting member includes first limiting ball heads (12) uniformly fixedly connected to the outer peripheral surface of the crushing block (9). A crushing cylinder (10) is ball-jointed to the outer peripheral surface of the crushing block (9) through the first limiting ball heads (12). A crushing column (11) is slidably connected between the opposite ends of two adjacent crushing cylinders (10). First tension springs (13) are fixedly connected to one end of each of the two ends of the crushing column (11) and the corresponding crushing cylinder (10). A pressure receiving groove is formed at the center of the side of the crushing block (9) close to the secondary moving plate (7). The first cross partition plate (15) and the second cross partition plate (17) are both arranged within the pressure receiving groove, and the four end faces of the first cross partition plate (15) and the second cross partition plate (17) are in contact with the inner peripheral surface of the pressure receiving groove.

2. The electro-deionization ultra-pure water equipment according to claim 1, wherein: On one side of the second cross partition plate (17) away from the first cross partition plate (15), there is a sealing plate (19) that can be inclined towards the angle between two adjacent connecting components, and the outer peripheral surface of the sealing plate (19) is attached to the inner peripheral surface of the pressure receiving groove. One end of the first cross partition plate (15) close to the second cross partition plate (17) is fixedly connected with an auxiliary connecting cylinder (34). One end of the auxiliary connecting cylinder (34) away from the first cross partition plate (15) is fixedly connected with a second auxiliary fixing circular plate (35) that can slide within the second cross partition plate (17). One side of the second auxiliary fixing circular plate (35) away from the auxiliary connecting cylinder (34) is fixedly connected with a second tension spring (36) with one end disposed on the inner side surface of the second cross partition plate (17).

3. The electro-deionization ultrapure water equipment according to claim 2, characterized in that: At the center of one side of the second cross partition plate (17) away from the first cross partition plate (15), there is a second limiting ball head (18) fixedly connected. The sealing plate (19) is ball-jointed to the second cross partition plate (17) through the second limiting ball head (18). The shape of the outer peripheral surface of the sealing plate (19) is a spherical surface centered on the second limiting ball head (18). The inner peripheral surface of the pressure receiving groove is provided with an annular limiting groove adapted to the sealing plate (19). The inner peripheral surface of the annular limiting groove is evenly provided with four limiting card channels. The outer peripheral surface of the sealing plate (19) is evenly fixedly connected with a plurality of auxiliary driving cylinders (21). Each of the auxiliary driving cylinders (21) is respectively slidably connected within the corresponding limiting card channel. One end of the four auxiliary driving cylinders (21) away from the sealing plate (19) is jointly rotatably connected with an auxiliary sealing cylinder (20) centered on the second limiting ball head (18), and the auxiliary sealing cylinder (20) is slidably connected within the crushing block (9).

4. The electro-deionization ultrapure water equipment according to claim 3, characterized in that: An annular channel (26) is provided at one end of the inner peripheral surface of the pressure receiving groove away from the auxiliary moving plate (7). A first connecting channel (14) is provided on the outer peripheral surface of the first limiting ball head (12), and a second connecting channel (22) communicated with the first connecting channel (14) is provided on the inner side wall of the crushing cylinder (10). A first communication groove (31) communicated with the first connecting channel (14) is provided on the outer peripheral surface of the crushing block (9), and the first communication groove (31) is also communicated with the annular channel (26).

5. The electro-deionization ultrapure water equipment according to claim 4, characterized in that: On one side of the sealing plate (19) close to the second cross partition plate (17), a sealing drive hemispherical cover (23) centered on the second limit ball head (18) is fixedly connected. One end of the sealing drive hemispherical cover (23) away from the sealing plate (19) is slidably connected in the second cross partition plate (17). A plurality of drive grooves (24) capable of communicating with the limit card channels are evenly formed on the outer surface of the sealing drive hemispherical cover (23). A plurality of auxiliary support plates (29) are evenly fixedly connected to one end of the outer peripheral surface of the second cross partition plate (17) away from the first cross partition plate (15). One side of the auxiliary support plate (29) is fixedly connected with a first spring (30) with one end disposed on the sealing plate (19). On one side of the second auxiliary fixing circular plate (35) close to the second limit ball head (18), a second fixing rod (28) is fixedly connected with one end sequentially passing through the second cross partition plate (17) and the second limit ball head (18) and extending into the broken block (9). One end of the second fixing rod (28) away from the second limit ball head (18) is fixedly connected with a blocking block (27). A plurality of pressure relief ports are formed on one side of the broken block (9) away from the auxiliary moving plate (7). An auxiliary pressure relief groove communicating with the pressure relief ports is formed at the center of the inner side of the pressure receiving groove. And the blocking block (27) is slidably connected in the auxiliary pressure relief groove.

6. A control method for an electrodeionization ultrapure water device, wherein the control method uses an electrodeionization ultrapure water device as described in claim 5 for deionization, and is characterized in that: Including the following steps: S1. Open the inlet water valve to cause the water to be ionized to enter the EDI body (1); S2. Under the continuous operation of the EDI body (1), ultrapure water will be continuously discharged, and concentrated brine will also be continuously discharged; S3. When scale blocks appear locally in the resin layer in the EDI body (1), the broken block (9) will move and then break the scale blocks; S4. Finally, when it is necessary to discharge the broken scale debris, connect the water inlet to the pulse water pipe, so as to inject pulse water into the EDI body (1), and the scale debris will be discharged from the EDI body (1) together with the water.

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