Ultra-purification column with internal circulation structure

Abstract

The utility model discloses an ultra-purification column with an internal circulation structure, and relates to the technical field of purification and separation devices. According to the utility model, each outer fixing ring is provided with a fastening part used for installing and fixing the upper end cover and the lower end cover, and the side wall surfaces, facing the outer cylinder, of the upper end cover and the lower end cover are bonded with sealing rubber pads. According to the utility model, the upper end cover and the lower end cover can be movably mounted through the arranged fastening part, the firmness of mounting the upper end cover and the lower end cover at the two ends of the outer cylinder is ensured, and the filter screen separation blade arranged in the outer cylinder can be conveniently dismounted in a flexible mounting manner, so that the aim of replacing polishing resin is fulfilled; compared with an integrated ultra-purification column in which the polishing resin cannot be replaced by removing the filter screen baffle, the ultra-purification column has the advantages that the economic loss during replacement is effectively reduced, the resource waste is avoided, the sealing effect of the upper end cover and the lower end cover mounted at the two ends of the outer cylinder can be enhanced through the arranged sealing rubber pads, and the service life of the ultra-purification column is prolonged. And leakage is avoided when the to-be-treated water liquid flows in the outer cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of purification and separation devices, in particular to an ultrapurification column with an internal circulation structure. Background Art

[0002] Ultrapurification columns, also known as high-performance liquid chromatography columns, are a tool commonly used for biochemical separation and purification. The principle is to use different types of chromatographic media to separate different components in the sample based on differences in molecular weight, polarity, charge, hydrophilicity, etc. As a component of the pretreatment system, microfiltration is usually filled with wound filter elements or PP cotton filter elements, and activated carbon columns are filled with granular activated carbon or activated carbon rods made of granular activated carbon after deep processing. As the name suggests, reverse osmosis columns are filled with reverse osmosis membrane filters, and ultrapurification columns are filled with polishing resins mixed with hydrogen-type strong acid cation exchange resins and hydroxide-type strong alkaline anion exchange resins in a certain proportion.

[0003] The Chinese utility model patent with publication number CN217173346U discloses an ultrapure water column with an internal circulation structure, wherein the inner cylinder is arranged in the outer cylinder, and adjacent outer cylinders and multiple inner cylinders each have a cavity, and the cavities are connected in series to form a passage with a uniform direction. The inner cylinder, outer cylinder, upper end cover and lower end cover in the device are prepared by injection molding, and the ultrapure water column is directly cast in an integrated manner according to the structure, resulting in that the filter screen baffle arranged in the cavity cannot be removed, so that when the polishing resin reaches the service life and needs to be replaced, the cavity cannot be replaced with new polishing resin, and the entire device needs to be disassembled and replaced, which increases the economic cost investment during replacement.

[0004] For this purpose, an ultrapurification column with an internal circulation structure is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art and provide an ultrapure water column with an internal circulation structure.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] An ultrapure water column with an internal circulation structure comprises an outer cylinder, an upper end cover, a lower end cover, a water inlet and a water outlet, wherein the outer wall surface of the outer cylinder is welded with two upper and lower corresponding outer fixing rings, each of which is provided with a fastening part for installing and fixing the upper end cover and the lower end cover, a sealing rubber pad is bonded to the wall surface of the upper end cover and the lower end cover facing the outer cylinder, a lower limiting part for limiting and fixing the fastening part is provided on the outer wall surface of the outer fixing ring, the fastening part comprises a top block, and the outer wall of the outer cylinder is provided with a lower limiting part for limiting and fixing the fastening part, Three circumferentially distributed top blocks are arranged on the side, a damping spring and a telescopic column are connected between the bottom of the top block and the outer wall of the outer fixed ring, a rotating cavity is opened on the bottom surface of the top block, a rotating plate is rotatably connected to the inner wall of the rotating cavity, the outer wall surfaces of the upper end cover and the lower end cover are rotatably connected to a turntable, a fastening ring corresponding to the outer fixed ring is arranged on the outer wall of the turntable, a reinforcement part for improving the stability of the installation of the turntable is installed on the top of the turntable, and three circumferentially distributed connecting plates are connected between the outer wall surface of the turntable and the inner wall surface of the fastening ring.

[0008] Furthermore, the lower limit portion includes a limit cavity, three circumferentially distributed limit cavities are opened on the outer wall surface of the outer fixing ring, two baffles are welded on the inner wall surface of the limit cavity, three protrusions are arranged at the bottom of the fastening ring, and an intercepting cavity that can accommodate the protrusions is formed below the two baffles and between the limit cavity, and two support rods whose other ends are connected to the bottom of the fastening ring are installed on the top of the protrusion.

[0009] Furthermore, the support rod and the fastening ring are connected in a threaded manner, and the movable end of the support rod is connected to the top of the protrusion via a bearing member.

[0010] Furthermore, the reinforcement part includes a connecting plate 2, and three circumferentially distributed connecting plates 2 are welded on the side wall of the turntable. The movable end of the connecting plate 2, the top of the fastening ring and the turn plate are all provided with threaded through holes, and the upper and lower corresponding threaded through holes are internally threaded with screws.

[0011] Furthermore, a cushion block and a cushion ring made of flexible plastic or soft rubber are respectively bonded to the upper surface of the turntable and the side wall surface of the outer fixing ring.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model can realize the movable installation of the upper end cover and the lower end cover by the fastening part, and at the same time, it can also ensure that the upper end cover and the lower end cover are firmly installed at the two ends of the outer cylinder. The flexible installation method is convenient for disassembling the filter baffle arranged inside the outer cylinder, so as to achieve the purpose of replacing the polishing resin. Compared with the integrated ultra-pure water column in which the filter baffle cannot be removed to replace the polishing resin, the economic loss during replacement is effectively reduced and the waste of resources is avoided. The sealing gasket can enhance the sealing effect of the upper end cover and the lower end cover installed at both ends of the outer cylinder to avoid leakage when the water to be treated flows inside the outer cylinder; the lower limit part can be effectively improved The firmness of the connection between the fastening part and the outer fixing ring can be prevented from loosening during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front perspective schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is an exploded schematic diagram of the fastening part structure of the utility model;

[0016] Figure 3 This is an exploded schematic diagram of the lower limiter structure of the utility model;

[0017] Figure numerals: 1. outer cylinder; 2. upper end cover; 3. lower end cover; 4. water inlet; 5. outer fixing ring; 6. fastening part; 601. turntable; 602. damping spring; 603. telescopic column; 604. top block; 605. rotating cavity; 606. rotating plate; 607. connecting plate one; 608. fastening ring; 7. pad; 8. reinforcement part; 801. connecting plate two; 802. screw; 803. threaded through hole; 9. lower limit part; 901. limit cavity; 902. baffle; 903. protrusion; 904. support rod; 905. intercepting cavity. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0021] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product 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 a limitation on the present invention.

[0022] like Figures 1 to 3 As shown, an ultrapure water column with an internal circulation structure comprises an outer cylinder 1, an upper end cover 2, a lower end cover 3, a water inlet 4 and a water outlet, the outer wall surface of the outer cylinder 1 is welded with two upper and lower corresponding outer fixing rings 5, each outer fixing ring 5 is provided with a fastening portion 6 for installing and fixing the upper end cover 2 and the lower end cover 3, a sealing rubber gasket is bonded to the wall surface of the upper end cover 2 and the lower end cover 3 facing the outer cylinder 1, and a lower limiting portion 9 for limiting and fixing the fastening portion 6 is provided on the outer wall surface of the outer fixing ring 5;

[0023] Specifically, the fastening portion 6 is provided to realize the movable installation of the upper end cover 2 and the lower end cover 3, and at the same time, the upper end cover 2 and the lower end cover 3 can be firmly installed at the two ends of the outer cylinder 1. The flexible installation method is convenient for disassembling the filter baffle arranged inside the outer cylinder 1, so as to achieve the purpose of replacing the polishing resin. Compared with the integrated ultra-pure water column in which the filter baffle cannot be removed to replace the polishing resin, the economic loss during replacement is effectively reduced and the waste of resources is avoided. The sealing gasket can enhance the sealing effect of the upper end cover 2 and the lower end cover 3 installed at the two ends of the outer cylinder 1 to avoid leakage when the water to be treated flows inside the outer cylinder 1; the lower limit portion 9 is provided to effectively improve the firmness of the connection between the fastening portion 6 and the outer fixing ring 5 to avoid loosening of the fastening portion 6 during use.

[0024] like Figure 1 and Figure 2As shown, the fastening portion 6 includes a top block 604, three top blocks 604 distributed in a circumference are arranged on the outer side of the outer cylinder 1, a damping spring 602 and a telescopic column 603 are connected between the bottom of the top block 604 and the outer wall surface of the outer fixing ring 5, a rotating cavity 605 is opened on the bottom surface of the top block 604, a rotating plate 606 is rotatably connected to the inner wall surface of the rotating cavity 605, a turntable 601 is rotatably connected to the outer wall surfaces of the upper end cover 2 and the lower end cover 3, a fastening ring 608 corresponding to the outer fixing ring 5 is arranged on the outer wall surface of the turntable 601, a reinforcing portion 8 for improving the installation stability of the turntable 606 is installed on the top of the turntable 601, and three connecting plates 607 distributed in a circumference are connected between the outer wall surface of the turntable 601 and the inner wall surface of the fastening ring 608;

[0025] Specifically, by pulling the top block 604, the top block 604 can be pulled to the top of the fastening ring 608 under the expansion and contraction changes of the damping spring 602 and the telescopic column 603, and then the rotating plate 606 is rotated ninety degrees so that the bottom surface of the rotating plate 606 corresponds to the upper surface of the fastening ring 608 up and down, and then the top block 604 is released. At this time, the damping spring 602 and the telescopic column 603 automatically retract, so that the bottom surface of the rotating plate 606 contacts the upper surface of the fastening ring 608, thereby achieving the purpose of fixing the turntable 601 on one end of the outer cylinder 1, and at this time, the sealing gasket installed on the upper end cover 2 or the lower end cover 3 can be squeezed and deformed under the pulling action of the damping spring 602, thereby effectively ensuring the sealing effect between the two ends of the outer cylinder 1 and the upper end cover 2 or the lower end cover 3.

[0026] like Figure 3 As shown, the lower limiting portion 9 includes a limiting cavity 901, three limiting cavities 901 distributed in a circumference are opened on the outer wall surface of the outer fixing ring 5, two baffles 902 are welded on the inner wall surface of the limiting cavity 901, three protrusions 903 are arranged at the bottom of the fastening ring 608, and an intercepting cavity 905 for accommodating the protrusions 903 is formed between the lower part of the two baffles 902 and the limiting cavity 901, and two support rods 904 whose other ends are connected to the bottom of the fastening ring 608 are installed on the top of the protrusion 903;

[0027] In order to facilitate the disassembly and replacement of the protrusion 903, the connection between the support rod 904 and the fastening ring 608 is a threaded connection, and the movable end of the support rod 904 is connected to the top of the protrusion 903 through a bearing member;

[0028] Specifically, the intercepting cavity 905 is provided to limit and fix the protrusion 903 , thereby improving the tightness of the connection between the fastening ring 608 and the outer fixing ring 5 , thereby enhancing the firmness of the turntable 601 installed on one end of the outer cylinder 1 .

[0029] like Figure 2As shown, the reinforcement part 8 includes a second connecting plate 801, and three circumferentially distributed second connecting plates 801 are welded on the side wall of the turntable 601. The movable end of the second connecting plate 801, the top of the fastening ring 608 and the rotating plate 606 are all provided with threaded through holes 803, and the upper and lower corresponding threaded through holes 803 are internally threadedly connected with screws 802;

[0030] Specifically, by threading the screw 802 from top to bottom to the inside of the connecting plate 2 801, the rotating plate 606 and the fastening ring 608, the connection and fixation among the connecting plate 2 801, the fastening ring 608 and the rotating plate 606 can be achieved, thereby preventing the rotating plate 606 from accidentally slipping off the fastening ring 608, thereby enhancing the connection effect between the fastening ring 608 and the rotating plate 606.

[0031] like Figure 1 and Figure 2 As shown, the upper surface of the turntable 601 and the side wall surface of the outer fixing ring 5 are respectively bonded with a cushion block 7 and a cushion ring made of flexible plastic or soft rubber material;

[0032] Specifically, the spacer block 7 and the spacer ring can provide protection for the outer wall surface and the upper and lower ends of the ultrapure water column, thereby preventing the ultrapure water column from being damaged by collision when it is accidentally tipped over.

[0033] When in use, the user can place the upper end cover 2 and the lower end cover 3 at the two ends of the outer cylinder 1 in sequence, so that the column centers of the upper end cover 2 and the lower end cover 3 correspond to the column centers of the outer cylinder 1 up and down, and at this time, the protrusion 903 is installed in the inner cavity of the limiting cavity 901, that is, the outer side of the baffle 902, and then pull the three top blocks 604 on the outer fixing ring 5 respectively until the top blocks 604 are located on the outer side of the upper end cover 2 (lower end cover 3), and then release the top blocks 604 or slightly relax the top blocks 604, and under the expansion and contraction action of the damping spring 602, the top blocks 604 can be driven to move downward, and at the same time, the rotating plate 606 is rotated so that the bottom surface of the rotating plate 606 corresponds to the outer wall surface of the fastening ring 608, and when the bottom surface of the rotating plate 606 fits with the outer wall surface of the fastening ring 608, the initial fixation of the top blocks 604 is completed, and the above steps are repeated to complete the installation and fixation of the other two rotating plates 606;

[0034] Then rotate the turntable 601 (in actual use, when the turntable 601 rotates, the side wall surfaces of the connecting plate 2 801 and the connecting plate 1 607 will not contact the water inlet 4 and the water outlet, that is, the space between two adjacent connecting plates 1 607 and two adjacent connecting plates 2 801 is larger than the size of the turntable 601 that needs to be rotated), so that the protrusion 903 is rotated to the inside of the interception cavity 905 to prevent the turntable 601 from accidentally falling off from one end of the outer cylinder 1 during use. After the rotation is completed, the threaded through holes 803 on the connecting plate 2 801, the fastening ring 608 and the turntable 606 correspond to each other up and down, and then the screw 802 can be threadedly connected to the inside of the three vertically arranged threaded through holes 803, so that the installation position of the turntable 606 can be fixed, ensuring the firmness and stability of the turntable 601 installed at one end of the outer cylinder 1.

[0035] In summary: the fastening portion 6 is provided to realize the movable installation of the upper end cover 2 and the lower end cover 3, and at the same time, the upper end cover 2 and the lower end cover 3 can be firmly installed at the two ends of the outer cylinder 1. The flexible installation method is convenient for disassembling the filter baffle arranged inside the outer cylinder 1, so as to achieve the purpose of replacing the polishing resin. Compared with the integrated ultra-pure water column in which the filter baffle cannot be removed to replace the polishing resin, the economic loss during replacement is effectively reduced and the waste of resources is avoided. The sealing gasket is able to enhance the sealing effect of the upper end cover 2 and the lower end cover 3 installed at the two ends of the outer cylinder 1, and avoid leakage when the water to be treated flows inside the outer cylinder 1; the lower limit portion 9 is provided to effectively improve the firmness of the connection between the fastening portion 6 and the outer fixing ring 5, and avoid the fastening portion 6 from loosening during use.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An ultrapurification column with an internal circulation structure, characterized in that: The invention comprises an outer cylinder (1), an upper end cover (2), a lower end cover (3), a water inlet (4) and a water outlet, wherein two upper and lower corresponding outer fixing rings (5) are welded to the outer wall surface of the outer cylinder (1), each outer fixing ring (5) is provided with a fastening portion (6) for mounting and fixing the upper end cover (2) and the lower end cover (3), a sealing rubber pad is bonded to the wall surface of the upper end cover (2) and the lower end cover (3) on one side facing the outer cylinder (1), a lower limiting portion (9) for limiting and fixing the fastening portion (6) is provided on the outer wall surface of the outer fixing ring (5), the fastening portion (6) comprises a top block (604), and three circumferentially distributed top blocks (604) are provided on the outer side of the outer cylinder (1), and the top blocks (604) ) and the outer wall surface of the outer fixing ring (5), a damping spring (602) and a telescopic column (603) are connected between the bottom of the top block (604), a rotating cavity (605) is provided on the bottom surface of the top block (604), a rotating plate (606) is rotatably connected to the inner wall surface of the rotating cavity (605), a turntable (601) is rotatably connected to the outer wall surfaces of the upper end cover (2) and the lower end cover (3), a fastening ring (608) corresponding to the outer fixing ring (5) is provided on the outer wall surface of the turntable (601), a reinforcing portion (8) for improving the installation stability of the turntable (606) is installed on the top of the turntable (601), and three circumferentially distributed connecting plates (607) are connected between the outer wall surface of the turntable (601) and the inner wall surface of the fastening ring (608).

2. The ultrapure water column with an internal circulation structure according to claim 1, characterized in that: The lower limiting portion (9) comprises a limiting cavity (901), three limiting cavities (901) distributed in a circumference are formed on the outer wall surface of the outer fixing ring (5), two baffles (902) are welded on the inner wall surface of the limiting cavity (901), three protrusions (903) are arranged at the bottom of the fastening ring (608), an intercepting cavity (905) capable of accommodating the protrusions (903) is formed between the lower part of the two baffles (902) and the limiting cavity (901), and two supporting rods (904) whose other ends are connected to the bottom of the fastening ring (608) are installed on the top of the protrusion (903).

3. The ultrapure water column with an internal circulation structure according to claim 2, characterized in that: The support rod (904) and the fastening ring (608) are connected in a threaded manner, and the movable end of the support rod (904) is connected to the top of the protrusion (903) via a bearing member.

4. The ultrapure water column with an internal circulation structure according to claim 1, characterized in that: The reinforcing portion (8) includes a second connecting plate (801), and three circumferentially distributed connecting plates (801) are welded on the side wall of the turntable (601). The movable end of the second connecting plate (801), the top of the fastening ring (608) and the rotating plate (606) are all provided with threaded through holes (803), and the upper and lower corresponding threaded through holes (803) are internally threadedly connected with screws (802).

5. The ultrapure water column with an internal circulation structure according to claim 1, characterized in that: A cushion block (7) and a cushion ring made of flexible plastic or soft rubber are respectively bonded to the upper surface of the turntable (601) and the side wall surface of the outer fixing ring (5).

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