Exchange column for preparing macroporous weak acid cation exchange resin

Abstract

The utility model relates to an exchange column for preparing macroporous weak acid cation exchange resin, which comprises an exchange column body and a pipeline valve, the body consists of an upper column body and a lower column body, first flanges are respectively formed at the lower end of the upper column body and the upper end of the lower column body, and the pipeline valve is arranged between the upper column body and the lower column body. Second flanges are respectively formed at the upper and lower ends of the pipeline valve; the second flange at the upper end of the pipeline valve is fixedly connected with the first flange at the lower end of the upper column body through a plurality of bolt assemblies; the second flange at the lower end of the pipeline valve is sleeved with a lantern ring with the L-shaped section, the lantern ring is composed of two semi-circular-ring-shaped sleeve bodies, and the first flange at the upper end of the lower column body is sleeved with the lower end of the lantern ring. The lower column body on the lower side of the first flange is sleeved with a circular-ring-shaped rubber sealing block and a pressing plate in an inserted mode, and the rubber sealing block and the pressing plate are both inserted into the lantern ring. According to the exchange column, sealing is achieved on the basis that the external clamping sleeve and the clamping plate clamp the rubber sleeve to be compressed and expanded, installation is convenient, and meanwhile sealing connection of pipeline valves can be effectively guaranteed.

Description

Technical field:

[0001] The utility model relates to the technical field of ion exchange columns, in particular to an exchange column for preparing macroporous weak acid cation exchange resin. Background technology:

[0002] An ion exchange column refers to a columnar pressure vessel used for ion exchange reactions, and is an exchange device for column ion exchange. In the preparation and production process of macroporous weak acid cation exchange resin, alkaline anion exchange resin is converted into weak acid cation exchange resin in the ion exchange column. The ion exchange column is generally provided with a pipeline valve, that is, the ion exchange column is arranged in two sections, upper and lower, and the pipeline valve is installed between the two sections of the exchange column; and the pipeline valve is damaged and needs to be replaced. When replacing the pipeline valve, because the spacing between the two sections of the exchange column is set, it is necessary to replace the pipeline valve of the same size as the original; but in the specific installation process, because the pipeline valve of the same specification cannot be found or the pipeline valve of the same specification has errors, etc., during the replacement and installation process, a gap appears between the lower end of the pipeline valve and the lower section of the exchange column. The current method is to insert and clamp multiple sealing pads in the gap for sealing connection, which is more troublesome in actual operation; so a sealing connection structure that is more convenient to install is needed. Utility model content:

[0003] The purpose of the utility model is to address the deficiencies of the prior art and to provide an exchange column for preparing macroporous weakly acidic cation exchange resins. The exchange column is sealed based on the compression and expansion of an externally mounted jacket and a clamping plate to clamp a rubber sleeve, which is easy to install and can effectively ensure the sealed connection of pipeline valves.

[0004] An exchange column for preparing macroporous weakly acidic cation exchange resin comprises a body of the exchange column and a pipeline valve, wherein the body consists of an upper cylinder and a lower cylinder, wherein the lower end of the upper cylinder and the upper end of the lower cylinder are respectively formed with a first flange, the pipeline valve is arranged between the upper cylinder and the lower cylinder, and the upper and lower ends of the pipeline valve are respectively formed with a second flange, and the second flange at the upper end of the pipeline valve is fixedly connected to the first flange at the lower end of the upper cylinder through a plurality of bolt assemblies; a collar with an L-shaped cross section is sleeved on the second flange at the lower end of the pipeline valve, the collar consists of two semicircular ring-shaped sleeves, and the lower end of the collar is sleeved on the first flange at the upper end of the lower cylinder; a circular ring-shaped rubber sealing block and a pressing plate are inserted and sleeved on the lower cylinder at the lower side of the first flange, and the rubber sealing block and the pressing plate are both inserted and arranged in the collar;

[0005] The pressure plate is formed with a plurality of vertical studs, the upper ends of the studs pass through the first flange, the second flange and the collar and are threaded with fastening nuts; the rubber sealing block is clamped between the first flange and the pressure plate, the outer ring of the rubber sealing block is formed with a cylindrical ring-shaped rubber sleeve, the upper and lower ends of the rubber sleeve are respectively pressed against the upper bottom surface on the inner side of the collar and the upper end surface of the pressure plate; the inner wall of the rubber sleeve is pressed against the outer walls of the second flange and the first flange, and the outer wall is pressed against the inner wall of the collar.

[0006] Preferably, the central axis of the body of the exchange column coincides with the central axis of the pipeline valve, and the studs and bolt assemblies are evenly distributed in a ring shape around the central axis of the body; the bolt assembly consists of bolts and nuts.

[0007] Preferably, the diameter of the outer ring of the first flange on the main body is equal to the diameter of the outer ring of the second flange on the pipeline valve; a sealing groove is formed on the end face of the first flange, a sealing ring is inserted on the first flange of the upper cylinder, the sealing ring is clamped between the first flange of the upper cylinder and the second flange at the upper end of the pipeline valve, and a gap is provided between the second flange at the lower end of the pipeline valve and the first flange at the upper end of the lower cylinder.

[0008] Preferably, the diameter of the inner wall of the ring is larger than the diameter of the first flange, and a sealing gasket is clamped between the upper bottom surface of the inner side of the ring and the first flange of the upper cylinder. The sealing gasket is composed of two semicircular gaskets, which are respectively adhered and fixed to the inner upper bottom surfaces of the two sleeves on the ring.

[0009] Preferably, the diameter of the outer wall of the pressing plate is equal to the diameter of the inner wall of the collar.

[0010] Preferably, the pressing plate is composed of two semicircular plate bodies, and the two plate bodies on the pressing plate and the two sleeve bodies on the sleeve ring are staggered.

[0011] The beneficial effects of the utility model are:

[0012] The exchange column realizes sealing by compressing and expanding the rubber sleeve clamped by an external jacket and a clamping plate, which is easy to install and can effectively ensure the sealing connection of pipeline valves. Description of the drawings:

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another angle;

[0015] Figure 3 It is a structural schematic diagram of the utility model in a front view;

[0016] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle.

[0017] In the figure: 1, main body; 11, upper cylinder; 12, lower cylinder; 13, first flange; 2, pipeline valve; 21, second flange; 3, bolt assembly; 4, collar; 5, rubber sealing block; 51, rubber sleeve; 6, pressure plate; 61, stud; 7, fastening nut; 8, sealing gasket. Specific implementation method:

[0018] Example: See Figures 1 to 4 As shown, an exchange column for preparing macroporous weak acid cation exchange resin comprises a body 1 of the exchange column and a pipeline valve 2, wherein the body 1 is composed of an upper cylinder 11 and a lower cylinder 12, wherein the lower end of the upper cylinder 11 and the upper end of the lower cylinder 12 are respectively formed with a first flange 13, the pipeline valve 2 is arranged between the upper cylinder 11 and the lower cylinder 12, and the upper and lower ends of the pipeline valve 2 are respectively formed with a second flange 21, and the second flange 21 at the upper end of the pipeline valve 2 is fixedly connected to the first flange 13 at the lower end of the upper cylinder 11 through a plurality of bolt assemblies 3; a collar 4 with an L-shaped cross section is sleeved on the second flange 21 at the lower end of the pipeline valve 2, the collar 4 is composed of two semicircular ring-shaped sleeves, and the lower end of the collar 4 is sleeved on the first flange 13 at the upper end of the lower cylinder 12; a circular ring-shaped rubber sealing block 5 and a pressing plate 6 are inserted and sleeved on the lower cylinder 12 at the lower side of the first flange 13, and the rubber sealing block 5 and the pressing plate 6 are both inserted and sleeved in the collar 4;

[0019] A plurality of vertical studs 61 are formed on the pressure plate 6, and the upper ends of the studs 61 pass through the first flange 13, the second flange 21 and the collar 4 and are screwed with fastening nuts 7; the rubber sealing block 5 is clamped between the first flange 13 and the pressure plate 6, and the outer ring of the rubber sealing block 5 is formed with a cylindrical ring-shaped rubber sleeve 51, and the upper and lower ends of the rubber sleeve 51 are respectively pressed against the upper bottom surface of the inner side of the collar 4 and the upper end surface of the pressure plate 6; through the compression and expansion of the collar 4 and the pressure plate 6, the inner wall of the rubber sleeve 51 is pressed against the outer walls of the second flange 21 and the first flange 13, and the outer wall is pressed against the inner wall of the collar 4.

[0020] The central axis of the body 1 of the exchange column coincides with the central axis of the pipeline valve 2, and the studs 61 and the bolt assemblies 3 are evenly distributed in a ring shape around the central axis of the body 1; the bolt assemblies 3 are composed of bolts and nuts, wherein a single bolt assembly 3 is provided with one bolt and two nuts.

[0021] The diameter of the outer circle of the first flange 13 on the main body 1 is equal to the diameter of the outer circle of the second flange 21 on the pipeline valve 2; a sealing groove is formed on the end face of the first flange 13, and a sealing ring is inserted on the first flange 13 of the upper column 11. The sealing ring is clamped between the first flange 13 of the upper column 11 and the second flange 21 at the upper end of the pipeline valve 2. A gap is provided between the second flange 21 at the lower end of the pipeline valve 2 and the first flange 13 at the upper end of the lower column 12. Because the replaced pipeline valve 2 has a difference in insertion, the upper part of the pipeline valve 2 can be fitted with the upper column 11 of the exchange column, and a gap will appear between the lower part and the lower column 12 of the exchange column.

[0022] The diameter of the inner wall of the collar 4 is larger than the diameter of the first flange 13. A sealing gasket 8 is clamped between the inner upper bottom surface of the collar 4 and the first flange 13 of the upper cylinder 11. The sealing gasket 8 is composed of two semicircular gaskets, which are respectively adhered and fixed to the inner upper bottom surfaces of the two sleeves on the collar 4. Sealing is achieved based on the gasket to prevent leakage.

[0023] The diameter of the outer wall of the pressing plate 6 is equal to the diameter of the inner wall of the collar 4 , which facilitates the positioning of the pressing plate 6 , that is, facilitates the positioning of the stud 61 .

[0024] The pressing plate 6 is composed of two semicircular plates, and the two plates on the pressing plate 6 and the two sleeves on the sleeve ring 4 are staggered. Figure 1 , 2 As shown, the studs 61 on the same plate are respectively inserted into the two sleeves.

[0025] Working principle: The utility model is an exchange column for preparing macroporous weak acid cation exchange resin. The technical point of the exchange column is embodied in the sealing connection structure of the pipeline valve 2 on the exchange column. Because there is a gap between the replaced pipeline valve 2 and the lower column 12, a rubber sealing block 5 and a rubber sleeve 51 are inserted on the lower column 12, and then a ring 4 composed of two ring sleeves is sleeved on the first flange 13 and the second flange 21. The pressure plate 6 is installed, and the ring 4 and the pressure plate 6 are compressed by locking the fastening nut 7. The sealing connection between the first flange 13 and the second flange 21 is realized based on the compression and collision of the rubber sealing block 5 and the rubber sleeve 51.

[0026] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. An exchange column for preparing a macroporous weakly acidic cation exchange resin, comprising a body (1) of the exchange column and a pipeline valve (2), wherein the body (1) is composed of an upper cylinder (11) and a lower cylinder (12), the lower end of the upper cylinder (11) and the upper end of the lower cylinder (12) are respectively formed with a first flange (13), the pipeline valve (2) is arranged between the upper cylinder (11) and the lower cylinder (12), the upper and lower ends of the pipeline valve (2) are respectively formed with a second flange (21), and the second flange (21) at the upper end of the pipeline valve (2) is fixedly connected to the first flange (13) at the lower end of the upper cylinder (11) by a plurality of bolt assemblies (3); characterized in that: A collar (4) with an L-shaped cross section is sleeved on a second flange (21) at the lower end of the pipeline valve (2), the collar (4) being composed of two semi-circular sleeve bodies, the lower end of the collar (4) being sleeved on a first flange (13) at the upper end of a lower cylinder (12); a circular rubber sealing block (5) and a pressing plate (6) are inserted and sleeved on the lower cylinder (12) at the lower side of the first flange (13), the rubber sealing block (5) and the pressing plate (6) being inserted and sleeved in the collar (4); The pressure plate (6) is formed with a plurality of vertical studs (61), and the upper ends of the studs (61) pass through the first flange (13), the second flange (21) and the collar (4) and are screwed with fastening nuts (7); the rubber sealing block (5) is clamped between the first flange (13) and the pressure plate (6), and the outer ring of the rubber sealing block (5) is formed with a cylindrical ring-shaped rubber sleeve (51), and the upper and lower ends of the rubber sleeve (51) are respectively pressed against the upper bottom surface of the inner side of the collar (4) and the upper end surface of the pressure plate (6); the inner wall of the rubber sleeve (51) is pressed against the outer walls of the second flange (21) and the first flange (13), and the outer wall is pressed against the inner wall of the collar (4).

2. The exchange column for preparing a macroporous weakly acidic cation exchange resin according to claim 1, characterized in that: The central axis of the exchange column body (1) coincides with the central axis of the pipeline valve (2); the studs (61) and the bolt assemblies (3) are evenly distributed in a ring shape around the central axis of the body (1); and the bolt assemblies (3) are composed of bolts and nuts.

3. An exchange column for preparing a macroporous weakly acidic cation exchange resin according to claim 2, characterized in that: The diameter of the outer ring of the first flange (13) on the body (1) is equal to the diameter of the outer ring of the second flange (21) on the pipeline valve (2); a sealing groove is formed on the end surface of the first flange (13); a sealing ring is inserted into the first flange (13) of the upper cylinder (11); the sealing ring is clamped between the first flange (13) of the upper cylinder (11) and the second flange (21) at the upper end of the pipeline valve (2); and a gap is provided between the second flange (21) at the lower end of the pipeline valve (2) and the first flange (13) at the upper end of the lower cylinder (12).

4. The exchange column for preparing a macroporous weakly acidic cation exchange resin according to claim 3, characterized in that: The diameter of the inner wall of the collar (4) is greater than the diameter of the first flange (13); a sealing gasket (8) is clamped between the inner upper bottom surface of the collar (4) and the first flange (13) of the upper cylinder (11); the sealing gasket (8) is composed of two semicircular gaskets, which are respectively glued and fixed to the inner upper bottom surfaces of the two sleeves on the collar (4).

5. The exchange column for preparing a macroporous weakly acidic cation exchange resin according to claim 1, characterized in that: The diameter of the outer wall of the pressing plate (6) is equal to the diameter of the inner wall of the sleeve ring (4).

6. An exchange column for preparing a macroporous weakly acidic cation exchange resin according to claim 5, characterized in that: The pressing plate (6) is composed of two semicircular plate bodies, and the two plate bodies on the pressing plate (6) and the two sleeve bodies on the sleeve ring (4) are staggered.

Images