Deionizer

Abstract

The present invention discloses a deionizer, belonging to the field of hydrogen fuel cell technology. The deionizer includes an assembly upper end cover, an assembly housing, an inner core assembly, and an inner core venturi tube. The inner core venturi tube is arranged in the inner core assembly, and a first filter mounting frame and a second filter mounting frame are mounted on the same side of a base. Resin is filled between the first filter mounting frame and the second filter mounting frame. When coolant flows into the deionizer and passes through the second filter mounting frame after being filtered by the resin, the coolant is divided into inner and outer straight-through fluids and upper and lower straight-through fluids due to the first guide hole and the first hollow structure. The inner and outer straight-through fluids flow through the venturi tube body through the second flow channel to form a high flow rate. Since the upper and lower straight-through fluids are drained into the venturi tube body through the guide tube, the high-flow rate of the inner and outer straight-through fluids drives the flow of the upper and lower straight-through fluids, accelerating the flow rate of the upper and lower straight-through fluids in the first flow channel, so that the deionizer has both a larger exchange capacity and a smaller flow resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen fuel cells, and in particular to a deionizer. Background Art

[0002] Deionizers are used in the cooling system of hydrogen fuel cell engines, primarily to remove free conductive ions from the coolant. During fuel cell operation, the bipolar plates generate high voltage, which must be prevented from being transmitted through the coolant between the plates and throughout the cooling circuit. Therefore, the coolant must maintain a low electrical conductivity.

[0003] In the design and subsequent application of deionizers, how to maximize the exchange capacity of the deionizer within the limited space of the vehicle while controlling the flow resistance of the product within a reasonable design range has become a major direction of competition in the industry.

[0004] Traditional deionizers have a single flow direction within their cores, primarily in either a straight-through inside-out or straight-through top-to-bottom configuration. The straight-through inside-out configuration offers lower flow resistance, but due to structural design limitations, it contains less resin and has a lower exchange capacity. The straight-through top-to-bottom configuration has a higher exchange capacity due to a higher concentration of resin, but the flow resistance is higher due to the excessive concentration of resin.

[0005] Therefore, it is urgent to provide a deionizer to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a deionizer that has both a larger exchange capacity and a smaller flow resistance.

[0007] To achieve the above objectives, the following technical solutions are provided:

[0008] Deionizer, including:

[0009] The upper end cover of the assembly is provided with a liquid inlet;

[0010] An assembly housing, wherein the assembly upper end cover is sealingly buckled on the assembly housing, an installation cavity is formed between the assembly upper end cover and the assembly housing, the liquid inlet is in communication with the installation cavity, and a liquid outlet is provided at the bottom of the assembly housing;

[0011] An inner core assembly is disposed in the mounting cavity, the inner core assembly comprising a base with a drain port and a first filter mounting frame and a second filter mounting frame located on the same side of the base, the drain port being in communication with the liquid outlet, the first filter mounting frame being disposed at the drain port, the second filter mounting frame being disposed at the outer edge of the base, and the first filter mounting frame being located inside the second filter mounting frame, resin being filled between the first filter mounting frame and the second filter mounting frame, a first guide hole being provided on the top of the first filter mounting frame, and a plurality of first hollow structures being circumferentially provided on the sidewall of the first filter mounting frame;

[0012] An inner core Venturi tube is installed in the first filter mounting frame. The inner core Venturi tube includes a Venturi tube body and a guide tube with a first flow channel arranged therein. The large mouth end of the Venturi tube body is connected to the drain port, one end of the guide tube is connected to the first guide hole, and the other end of the guide tube extends into the Venturi tube body. A second flow channel is formed between the outer wall surface of the guide tube and the inner wall surface of the Venturi tube body.

[0013] As an optional solution for the deionizer, a plurality of reinforcing ribs are connected between the outer wall surface of the flow guide tube and the inner wall surface of the venturi tube body.

[0014] As an optional solution for the deionizer, a second guide hole is provided on the top of the second filter mounting frame, and a plurality of second hollow structures are provided circumferentially on the side wall of the second filter mounting frame.

[0015] As an optional solution for the deionizer, a plurality of third hollow structures are provided on the top of the second filter mounting frame, and the plurality of third hollow structures are radiated outward along the radial direction of the second guide hole.

[0016] As an optional solution for the deionizer, the second filter mounting frame includes a detachably connected second inner core upper end cover and a second inner core shell, the second inner core shell and the base are an integrated structure, the second inner core upper end cover is provided with the second guide hole and a plurality of the third hollow structures, and the second inner core shell is provided with a plurality of second hollow structures.

[0017] As an optional solution for the deionizer, the upper end cover of the second inner core is provided with a first filter screen, and the circumferential cover of the second inner core shell is provided with a second filter screen.

[0018] As an optional solution for the deionizer, the first filter mounting frame includes a first inner core upper end cover and a first inner core shell. The first inner core upper end cover, the first inner core shell, the base and the second inner core shell are an integrated structure. The first inner core upper end cover is provided with the first flow guide hole, and the first inner core shell is provided with multiple first hollow structures.

[0019] As an optional solution for the deionizer, a third filter screen is provided at the cover of the first guide hole, and a fourth filter screen is provided at the circumferential cover of the first inner core shell.

[0020] As an optional solution for the deionizer, a mounting tube is provided at one end of the base away from the first filter mounting frame, the inner diameter of the mounting tube is larger than the inner diameter of the drain port, and a first sealing ring is provided between the mounting tube and the bottom of the assembly shell.

[0021] As an optional solution for the deionizer, a second sealing ring is provided at the connection between the upper end cover of the assembly and the top of the assembly shell.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The deionizer provided by the present invention installs the inner core assembly into the installation cavity formed between the upper end cover of the assembly and the assembly shell, the inner core venturi tube is arranged in the inner core assembly, the first filter mounting frame and the second filter mounting frame are installed on the same side of the base, and resin is filled between the first filter mounting frame and the second filter mounting frame. When the coolant flows into the deionizer, the coolant passes through the second filter mounting frame after being filtered by the resin. Due to the arrangement of the first guide hole and the first hollow structure, the coolant is divided into inner and outer straight-through fluids flowing from outside to inside and upper and lower straight-through fluids flowing from top to bottom. The inner and outer straight-through fluids flow through the venturi tube body through the second flow channel and produce a Venturi effect to form a high flow rate. Since the upper and lower straight-through fluids are drained into the venturi tube body through the guide tube, the high-flow rate of the inner and outer straight-through fluids drives the upper and lower straight-through fluids to flow rapidly, thereby accelerating the flow rate of the upper and lower straight-through fluids in the first flow channel, so that the deionizer has both larger exchange capacity and smaller flow resistance, thereby improving product utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0025] Figure 1 This is a schematic diagram of the assembly of a deionizer in an embodiment of the present invention;

[0026] Figure 2 Schematic diagram of the explosion of the deionizer in an embodiment of the present invention;

[0027] Figure 3 This is a first exploded schematic diagram of the inner core assembly and the inner core venturi in an embodiment of the present invention;

[0028] Figure 4 Schematic diagram of the structure of the inner core venturi tube in an embodiment of the present invention;

[0029] Figure 5 A top view of the inner core venturi tube in an embodiment of the present invention;

[0030] Figure 6 A cross-sectional view of an inner core venturi tube in an embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the flow of coolant inside the deionizer according to an embodiment of the present invention;

[0032] Figure 8 Schematic diagram of a second explosion of the inner core assembly and the inner core venturi in an embodiment of the present invention.

[0033] Reference numerals:

[0034] 100, assembly upper end cover; 200, assembly housing; 300, installation cavity; 400, inner core assembly; 500, second sealing ring;

[0035] 101. Liquid inlet; 201. Liquid outlet;

[0036] 1. Base; 2. First filter mounting bracket; 3. Second filter mounting bracket; 4. Inner core Venturi tube; 5. Reinforcement rib; 6. Mounting tube; 7. First sealing ring;

[0037] 11. Drainage port;

[0038] 21. First air guide hole; 22. First hollow structure; 23. First inner core upper end cover; 24. First inner core housing; 25. Third filter; 26. Fourth filter;

[0039] 31. Second guide hole; 32. Second hollow structure; 33. Third hollow structure; 34. Second inner core upper end cap; 35. Second inner core housing; 36. First filter; 37. Second filter;

[0040] 41. Venturi tube body; 42. First flow channel; 43. Draft tube; 44. Second flow channel; 45. Reinforcement rib. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0045] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0048] The application of new energy technologies in complete vehicles is becoming more and more diversified. Among them, the rapid development and application of hydrogen fuel cell technology has also opened up a new path and direction for new energy technologies.

[0049] Deionizers are used in the cooling system of hydrogen fuel cell engines, primarily to remove free conductive ions from the coolant. During fuel cell operation, the bipolar plates generate high voltage, which must be prevented from being transmitted through the coolant between the plates and throughout the cooling circuit. Therefore, the coolant must maintain a low electrical conductivity.

[0050] In the design and subsequent application of deionizers, how to maximize the exchange capacity of the deionizer within the limited space of the vehicle while controlling the flow resistance of the product within a reasonable design range has become a major direction of competition in the industry.

[0051] Traditional deionizers have a single flow direction within their cores, primarily in either a straight-through inside-out or straight-through top-to-bottom configuration. The straight-through inside-out configuration offers lower flow resistance, but due to structural design limitations, it contains less resin and has a lower exchange capacity. The straight-through top-to-bottom configuration has a higher exchange capacity due to a higher concentration of resin, but the flow resistance is higher due to the excessive concentration of resin.

[0052] In order to make the deionizer have both larger exchange capacity and smaller flow resistance, this embodiment provides a deionizer, which is combined with Figures 1 to 8 The specific contents of this embodiment are described in detail.

[0053] like Figures 1 to 7As shown, the deionizer includes an assembly upper end cover 100, an assembly shell 200, an inner core assembly 400 and an inner core venturi tube 4. Among them, the assembly upper end cover 100 is provided with a liquid inlet 101. The assembly upper end cover 100 is connected to the assembly shell 200 by four bolts, so that the assembly upper end cover 100 is sealed and buckled on the assembly shell 200. An installation cavity 300 is formed between the assembly upper end cover 100 and the assembly shell 200. The liquid inlet 101 is connected to the installation cavity 300. The assembly upper end cover 100 is provided with a liquid inlet 101, and a liquid outlet 201 is provided at the bottom of the assembly shell 200. The inner core assembly 400 is arranged in the installation cavity 300. The inner core assembly 400 includes a base 1 with a drain port 11 and a first filter mounting frame 2 and a second filter mounting frame 3 located on the same side of the base 1. The drain port 11 is connected to the liquid outlet 201. The first filter mounting frame 2 is arranged at the drain port 11, and the second filter mounting frame 3 is arranged at the outer edge of the base 1. The first filter mounting frame 2 is located inside the second filter mounting frame 3. Resin is filled between the first filter mounting frame 2 and the second filter mounting frame 3. A first guide hole 21 is opened at the top of the first filter mounting frame 2, and a plurality of first hollow structures 22 are circumferentially arranged on the side wall of the first filter mounting frame 2. The inner core Venturi tube 4 is installed in the first filter mounting frame 2. The inner core Venturi tube 4 includes a Venturi tube body 41 and a guide tube 43 with a first flow channel 42 provided therein. The guide tube 43 is arranged above and below the Venturi tube body 41. The large mouth end at the bottom of the Venturi tube body 41 is connected to the drain port 11, one end of the guide tube 43 is connected to the first guide hole 21, and the other end of the guide tube 43 extends into the Venturi tube body 41. A second flow channel 44 is formed between the outer wall surface of the guide tube 43 and the inner wall surface of the Venturi tube body 41.

[0054] In short, the deionizer provided by the present invention installs the inner core assembly 400 into the installation cavity 300 formed between the upper end cover 100 of the assembly and the assembly shell 200, the inner core venturi tube 4 is arranged in the inner core assembly 400, the first filter mounting frame 2 and the second filter mounting frame 3 are installed on the same side of the base 1, and the first filter mounting frame 2 and the second filter mounting frame 3 are filled with resin. When the coolant flows into the ionizer, the coolant is filtered by the resin and then passes through the second filter mounting frame 3. Due to the design of the first guide hole 21 and the first hollow structure 22, the coolant is The coolant is divided into an inner-outer straight-through fluid flowing from outside to inside and an upper-lower straight-through fluid flowing from top to bottom. The inner-outer straight-through fluid flows through the Venturi tube body 41 through the second flow channel 44 and produces a Venturi effect to form a high flow rate. Since the upper and lower straight-through fluids are drained into the Venturi tube body 41 through the guide tube 43, the high-flow rate of the inner-outer straight-through fluids drives the upper and lower straight-through fluids to flow rapidly, thereby accelerating the flow rate of the upper and lower straight-through fluids in the first flow channel 42, so that the deionizer has a larger exchange capacity and a smaller flow resistance, thereby improving the use efficiency of the product.

[0055] Furthermore, if Figures 4 to 6 As shown, several reinforcing ribs 45 are connected between the outer wall of the flow guide tube 43 and the inner wall of the venturi body 41. The reinforcement ribs 45 between the flow guide tube 43 and the venturi body 41 help to stabilize the position of the flow guide tube 43 relative to the venturi body 41, preventing the flow guide tube 43 from shaking relative to the venturi body 41 and disrupting the flow of fluid.

[0056] Specifically, in this embodiment, a plurality of reinforcing ribs 45 are provided, and the plurality of reinforcing ribs 45 are radially distributed outward along the radial direction of the flow guide tube 43 , thereby further improving the overall structural strength of the inner core venturi tube 4 .

[0057] Furthermore, if Figure 3 As shown, the top of the second filter mounting frame 3 is provided with a second guide hole 31, and the sidewall of the second filter mounting frame 3 is circumferentially provided with multiple second hollow structures 32. By providing the second guide hole 31 and multiple second hollow structures 32 on the second filter mounting frame 3, the coolant can be pre-diverted before it flows through the resin, into a vertical straight-through flow and an internal and external straight-through flow. The fluid is then secondary diverted when passing through the first filter mounting frame 2, avoiding blockage and ensuring smooth fluid flow.

[0058] Furthermore, if Figure 3 As shown, the top of the second filter mounting frame 3 is provided with a plurality of third hollow structures 33, which are radially distributed outward along the radial direction of the second guide hole 31. By adding a plurality of third hollow structures 33 radially distributed outward along the radial direction of the second guide hole 31, the coolant at the top of the mounting cavity 300 is effectively diverted, allowing the liquid to flow evenly through the top of the second filter mounting frame 3, thereby preventing blockage.

[0059] Furthermore, if Figure 8 As shown, the second filter mounting frame 3 includes a detachably connected second inner core upper end cap 34 and a second inner core housing 35. The second inner core housing 35 is an integrated structure with the base 1. The second inner core upper end cap 34 is provided with a second flow guide hole 31 and a plurality of third hollow structures 33, and the second inner core housing 35 is provided with a plurality of second hollow structures 32. By arranging the second inner core upper end cap 34 and the second inner core housing 35 in a detachable connection, on the one hand, it is convenient to quickly fill the resin during the assembly stage; on the other hand, when the resin needs to be replaced, only the second inner core upper end cap 34 needs to be removed to complete the resin replacement, avoiding the scrapping of the entire inner core assembly 400 and reducing the cost of use.

[0060] Furthermore, if Figure 8As shown, the second inner core upper end cap 34 is covered with a first filter 36, and the second inner core housing 35 is circumferentially covered with a second filter 37. The first and second filters 36 and 37 provide preliminary filtration and confine resin particles, preventing leakage due to the larger apertures of the second guide holes 31 and the second hollow structure 32. For example, the mesh size of the first and second filters 36 and 37 is 50-150.

[0061] Furthermore, if Figure 8 As shown, the first filter mounting frame 2 includes a first inner core upper end cap 23 and a first inner core shell 24. The first inner core upper end cap 23, the first inner core shell 24, the base 1, and the second inner core shell 35 are an integrated structure. The first inner core upper end cap 23 is provided with a first flow guide hole 21, and the first inner core shell 24 is provided with a plurality of first hollow structures 22. By designing the first inner core upper end cap 23, the first inner core shell 24, the base 1, and the second inner core shell 35 as an integrated structure, the structural strength of the entire inner core assembly 400 is improved, and the filling of the resin is facilitated.

[0062] Furthermore, if Figure 8 As shown, a third filter 25 is positioned over the first guide hole 21, and a fourth filter 26 is positioned around the first inner core housing 24. These filters provide preliminary filtration and confine resin particles, preventing leakage due to the larger apertures of the first guide hole 21 and the first hollow structure 22. For example, the mesh size of the third and fourth filters 25 and 26 ranges from 50 to 150.

[0063] Furthermore, if Figure 7 As shown, a mounting tube 6 is provided at one end of the base 1 away from the first filter mounting bracket 2. The inner diameter of the mounting tube 6 is larger than that of the drain port 11, and a first sealing ring 7 is provided between the mounting tube 6 and the bottom of the assembly housing 200. Specifically, a mounting groove is provided circumferentially on the outer wall of the mounting tube 6 to facilitate the assembly of the first sealing ring 7, so that the first sealing ring 7 is sandwiched between the mounting tube 6 and the assembly housing 200. This not only ensures the stability of the installation position of the inner core assembly 400, but also ensures the sealing between the mounting tube 6 and the assembly housing 200, preventing fluid leakage between the mounting tube 6 and the assembly housing 200, and ensuring that the coolant is fully filtered through the resin.

[0064] Furthermore, if Figure 7 As shown, a second sealing ring 500 is provided at the top connection between the assembly upper end cover 100 and the assembly housing 200 to ensure the assembly sealing between the assembly upper end cover 100 and the assembly housing 200 and avoid leakage of coolant.

[0065] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A deionizer, characterized in that include: The upper end cover (100) of the assembly is provided with a liquid inlet (101); An assembly housing (200), wherein the assembly upper end cover (100) is sealed and buckled on the assembly housing (200), an installation cavity (300) is formed between the assembly upper end cover (100) and the assembly housing (200), the liquid inlet (101) is in communication with the installation cavity (300), and a liquid outlet (201) is provided at the bottom of the assembly housing (200); An inner core assembly (400) is arranged in the mounting cavity (300), the inner core assembly (400) comprising a base (1) with a liquid discharge port (11) and a first filter mounting frame (2) and a second filter mounting frame (3) located on the same side of the base (1), the liquid discharge port (11) being in communication with the liquid outlet (201), the first filter mounting frame (2) being arranged at the liquid discharge port (11), the second filter mounting frame (3) being arranged at the outer edge of the base (1), and the first filter mounting frame (2) being located inside the second filter mounting frame (3), resin being filled between the first filter mounting frame (2) and the second filter mounting frame (3), a first guide hole (21) being provided at the top of the first filter mounting frame (2), and a plurality of first hollow structures (22) being provided circumferentially on the side wall of the first filter mounting frame (2); An inner core Venturi tube (4) is installed in the first filter mounting frame (2), the inner core Venturi tube (4) comprising a Venturi tube body (41) and a flow guide tube (43) provided with a first flow channel (42) therein, the large mouth end of the Venturi tube body (41) being in communication with the liquid discharge port (11), one end of the flow guide tube (43) being in communication with the first flow guide hole (21), the other end of the flow guide tube (43) extending into the Venturi tube body (41), and a second flow channel (44) being formed between the outer wall surface of the flow guide tube (43) and the inner wall surface of the Venturi tube body (41).

2. The deionizer according to claim 1, characterized in that A plurality of reinforcing ribs (45) are connected between the outer wall surface of the flow guide tube (43) and the inner wall surface of the venturi tube body (41).

3. The deionizer according to claim 1, wherein A second flow guide hole (31) is provided on the top of the second filter mounting frame (3), and a plurality of second hollow structures (32) are circumferentially provided on the side wall of the second filter mounting frame (3).

4. The deionizer according to claim 3, characterized in that A plurality of third hollow structures (33) are provided on the top of the second filter mounting frame (3), and the plurality of third hollow structures (33) are radially distributed outward along the radial direction of the second guide hole (31).

5. The deionizer according to claim 4, characterized in that The second filter mounting frame (3) comprises a second inner core upper end cover (34) and a second inner core shell (35) which are detachably connected, the second inner core shell (35) and the base (1) forming an integrated structure, the second inner core upper end cover (34) being provided with the second flow guide hole (31) and a plurality of the third hollow structures (33), and the second inner core shell (35) being provided with a plurality of second hollow structures (32).

6. The deionizer according to claim 5, characterized in that The upper end cover (34) of the second inner core is provided with a first filter screen (36), and the circumferential cover of the second inner core shell (35) is provided with a second filter screen (37).

7. The deionizer according to claim 5, characterized in that The first filter mounting frame (2) comprises a first inner core upper end cover (23) and a first inner core shell (24); the first inner core upper end cover (23), the first inner core shell (24), the base (1) and the second inner core shell (35) are an integrated structure; the first inner core upper end cover (23) is provided with the first flow guide hole (21), and the first inner core shell (24) is provided with a plurality of the first hollow structures (22).

8. The deionizer according to claim 7, characterized in that A third filter screen (25) is provided on the cover of the first guide hole (21), and a fourth filter screen (26) is provided on the circumferential cover of the first inner core shell (24).

9. The deionizer according to any one of claims 1 to 8, characterized in that: A mounting tube (6) is provided at one end of the base (1) away from the first filter mounting frame (2); the inner diameter of the mounting tube (6) is larger than the inner diameter of the liquid discharge port (11); and a first sealing ring (7) is provided between the mounting tube (6) and the bottom of the assembly housing (200).

10. The deionizer according to any one of claims 1 to 8, characterized in that: A second sealing ring (500) is provided at the connection between the assembly upper end cover (100) and the top of the assembly housing (200).

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