An eluent generator
The split design of the eluent generator addresses high processing costs and ion exchange membrane leakage by using separate shells and a sealed ion exchange membrane, achieving cost-effective assembly and separation in eluent generators.
Patent Information
- Application Number
- CN202010062990.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-01-20
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2040-01-20
AI Technical Summary
Current eluent generators have high processing costs due to integrated designs and are prone to ion exchange membrane leakage, leading to eluent mixing with regeneration liquids.
A split design eluent generator with a lower and upper shell, bolted connection, and a separate ion exchange membrane that completely separates the eluent flow area from the clamp block channels, featuring a recessed groove and annular protrusions for sealing and a bent conductive wire connection for electrodes.
The design reduces production costs and facilitates easy assembly while effectively preventing eluent mixing, ensuring efficient separation of eluent and regeneration liquids.
Smart Images
Figure CN111167313B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of analytical instruments and equipment, and in particular to an eluent generator. Background Art
[0002] At present, the eluent generator has an integrated design of the clamp block and the upper shell. Since there are many structures on the clamp block and many parts need to be processed, the processing cost is very high. On the other hand, the ion exchange membrane of the current eluent generator is prone to leakage, especially at its edge, which can easily cause the eluent to mix with the regeneration liquid flowing in the channel of the clamp block. Summary of the invention
[0003] The present invention aims to solve the above problems and provides an eluent generator, which is a split design, has low production cost and is easy to assemble; the ion exchange membrane can completely and effectively separate the eluent flow area from the channel of the clamp block, and the technical solution adopted is as follows:
[0004] A eluent generator, characterized in that it comprises: a lower shell, a first electrode net, an ion exchange membrane, a clamp block, a second electrode net, an upper shell, a first electrode and a second electrode, the lower shell being connected to the upper shell by bolts and clamping the clamp block therebetween, the lower shell and the upper shell together forming a accommodating cavity for accommodating the clamp block, the clamp block being provided with a plurality of channels from top to bottom, the second electrode net being covered on the top surface of the channels of the clamp block, the ion exchange membrane and the first electrode net being clamped between the clamp block and the lower shell and arranged from top to bottom, the lower shell being provided with an eluent inlet and an eluent outlet, the eluent The liquid inlet and the eluent outlet are both connected to the eluent circulation area below the ion exchange membrane, and the eluent circulation area is the area clamped by the ion exchange membrane and the lower shell. The first electrode is arranged on the lower shell and is electrically connected to the first electrode network. The second electrode is arranged on the side wall of the upper shell and is electrically connected to the second electrode network. The top of the upper shell is a joint for detachable connection with the bottle mouth of the solution bottle. The hollow cavity of the joint is connected to the channel of the clamp block. The ion exchange membrane completely separates the eluent circulation area from the channel of the clamp block. The first electrode is positive or negative, and the polarity of the second electrode is opposite to that of the first electrode.
[0005] Based on the above technical solution, the eluent generator also includes an upper flange pressing plate and a lower flange pressing plate. The upper flange pressing plate is mounted on the top of the upper shell, and the lower flange pressing plate is mounted on the bottom of the lower shell. The upper flange pressing plate, the upper shell, the lower shell and the lower flange pressing plate are detachably connected together from top to bottom by bolts passing through them.
[0006] Based on the above technical solution, the channel of the clamping block is a vertical channel.
[0007] Based on the above technical solution, the center of the top surface of the lower shell is recessed downward to form a first groove, and the center of the bottom surface of the upper shell is recessed upward to form a second groove, and the first groove and the second groove together constitute a accommodating cavity.
[0008] On the basis of the above technical solution, the cross-sectional area of the second groove is greater than the cross-sectional area of the first groove, and the shape of the clamping block is compatible with the accommodating cavity.
[0009] Based on the above technical solution, the channels are in the shape of long strips, and the channels are arranged in parallel.
[0010] Based on the above technical solution, the bottom of the first groove protrudes upward to form a closed, annular eluent receiving protrusion, the first electrode mesh is completely located in the area surrounded by the eluent receiving protrusion, the area of the ion exchange membrane is larger than the area of the first electrode mesh, a part of the ion exchange membrane is located in the area surrounded by the eluent receiving protrusion, and a part of it is pressed against the top surface of the eluent receiving protrusion by a clamp, and the area surrounded by the eluent receiving protrusion is the eluent flow area.
[0011] Based on the above technical solution, the bottom surface of the clamping block protrudes downward to form a closed, annular sealing lip, which is matched with the shape of the eluent receiving protrusion. The sealing lip and the eluent receiving protrusion clamp the ion exchange membrane between them.
[0012] Based on the above technical solution, the first electrode is electrically connected to the first electrode network through a conductive wire in a bent state, and the second electrode is electrically connected to the second electrode network through a conductive wire in a bent state.
[0013] The beneficial effects of the present invention are as follows: it is a split design, has low production cost and is easy to assemble; and the ion exchange membrane can completely and effectively separate the eluent flow area from the channel of the clamping block. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a front view structural schematic diagram of the present invention;
[0015] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;
[0016] Figure 3 It is a schematic diagram of the explosion structure of the present invention;
[0017] Figure 4 is a schematic diagram of the top view of the lower shell of the present invention;
[0018] Figure 5 is a schematic diagram of the top view of the clamping block of the present invention;
[0019] Figure 6is a bottom view structural schematic diagram of the clamping block of the present invention; DETAILED DESCRIPTION
[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:
[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] In the description of the present invention, it is necessary to understand that the terms "left", "right", "front", "back", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0023] Example 1
[0024] like Figures 1 to 3 As shown, a eluent generator is characterized in that it includes: a lower shell 2, a first electrode net 3, an ion exchange membrane 4, a clamp block 5, a second electrode net 6, an upper shell 7, a first electrode 20 and a second electrode 30, the lower shell 2 and the upper shell 7 are connected by bolts and the clamp block 5 is clamped therebetween, the lower shell 2 and the upper shell 7 together form a accommodating cavity for accommodating the clamp block 5, the clamp block 5 is provided with a plurality of channels 50 from top to bottom, the second electrode net 6 is covered on the top surface of the channels 50 of the clamp block 5, the ion exchange membrane 4 and the first electrode net 3 are clamped between the clamp block 5 and the lower shell 2 and arranged from top to bottom, the lower shell 2 is provided with an eluent inlet 10 and an eluent outlet 11, the eluent The washing liquid inlet 10 and the eluent outlet 11 are both connected to the eluent circulation area below the ion exchange membrane 4, and the eluent circulation area is the area clamped by the ion exchange membrane 4 and the lower shell 2. The first electrode 20 is arranged on the lower shell 2 and is electrically connected to the first electrode network 3. The second electrode 30 is arranged on the side wall of the upper shell 7 and is electrically connected to the second electrode network 6. The top of the upper shell 7 is a connector 70 for detachable connection with the bottle mouth of the solution bottle 8. The hollow cavity 7a of the connector 70 is connected to the channel 50 of the clamp block 5. The ion exchange membrane 4 completely separates the eluent circulation area from the channel of the clamp block 5. The first electrode 20 is positive or negative, and the polarity of the second electrode 30 is opposite to that of the first electrode 20.
[0025] Example 2
[0026] like Figures 1 to 3 As shown, based on Example 1, the eluent generator also includes an upper flange pressing plate 12 and a lower flange pressing plate 13, the upper flange pressing plate 12 is mounted on the top of the upper shell 7, and the lower flange pressing plate 13 is mounted on the bottom of the lower shell 2, and the upper flange pressing plate 12, the upper shell 7, the lower shell 2 and the lower flange pressing plate 13 are detachably connected together from top to bottom by bolts passing through them.
[0027] Preferably, the channel of the clamping block 5 is a vertical channel. The channel can be in the shape of a long strip, and each channel is arranged in parallel.
[0028] Preferably, the center of the top surface of the lower shell 2 is recessed downward to form a first groove 10a, and the center of the bottom surface of the upper shell 7 is recessed upward to form a second groove 10b, and the first groove 10a and the second groove 10b together constitute a accommodating cavity.
[0029] In order to enable the ion exchange membrane 4 to completely and effectively separate the eluent flow area from the channel 50 of the clamp block 5, further, the cross-sectional area of the second groove 10b is greater than the cross-sectional area of the first groove 10a, and the shape of the clamp block 5 is adapted to the accommodating cavity. The bottom of the first groove 10a protrudes upward to form a closed, annular eluent receiving protrusion 100, the first electrode net 3 is completely located in the area surrounded by the eluent receiving protrusion 100, the area of the ion exchange membrane 4 is greater than the area of the first electrode net 3, a part of the ion exchange membrane 4 is located in the area surrounded by the eluent receiving protrusion 100, and a part of it is pressed by the clamp block 5 on the top surface of the eluent receiving protrusion 100, and the area surrounded by the eluent receiving protrusion 100 is the eluent flow area.
[0030] In order to achieve a more thorough seal, the bottom surface of the clamping block 5 protrudes downward to form a closed, annular sealing lip 200, which is adapted to the shape of the eluent receiving protrusion 100. The sealing lip 200 and the eluent receiving protrusion 100 clamp the ion exchange membrane 4 therebetween.
[0031] In order to increase the contact area between the conductive wire and the first electrode mesh 3, and to increase the contact area between the conductive wire and the second electrode mesh 6, preferably, the first electrode 20 is electrically connected to the first electrode mesh 3 through the conductive wire in a bent state, so that the conductive wire and the first electrode mesh 3 have multiple contact points, and the second electrode 30 is electrically connected to the second electrode mesh 6 through the conductive wire in a bent state, so that the conductive wire and the second electrode mesh 6 have multiple contact points.
[0032] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.
[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A eluent generator, characterized in that: include: A lower shell (2), a first electrode net (3), an ion exchange membrane (4), a clamping block (5), a second electrode net (6), an upper shell (7), a first electrode (20) and a second electrode (30), wherein the lower shell (2) and the upper shell (7) are connected by bolts and the clamping block (5) is clamped therebetween, the lower shell (2) and the upper shell (7) together enclose a receiving cavity for receiving the clamping block (5), the clamping block (5) is provided with a plurality of channels (50) extending from top to bottom, the first electrode net (6) and the second electrode net (30 .... The second electrode mesh (6) is covered on the top surface of the channel (50) of the clamping block (5); the ion exchange membrane (4) and the first electrode mesh (3) are sandwiched between the clamping block (5) and the lower shell (2) and arranged from top to bottom; the lower shell (2) has an eluent inlet (10) and an eluent outlet (11); the eluent inlet (10) and the eluent outlet (11) are both connected to the eluent flow area below the ion exchange membrane (4); the eluent flow area is the eluent flow area between the ion exchange membrane (4) and the lower shell. (2) The first electrode (20) is arranged on the lower shell (2) and is electrically connected to the first electrode net (3), the second electrode (30) is arranged on the side wall of the upper shell (7) and is electrically connected to the second electrode net (6), the top of the upper shell (7) is a joint (70) for detachably connecting to the bottle mouth of the solution bottle (8), the hollow cavity (7a) of the joint (70) is connected to the channel (50) of the clamping block (5), and the ion exchange membrane (4) allows the eluent to flow The area is completely separated from the channel of the clamp block (5); the first electrode (20) is positive or negative, and the polarity of the second electrode (30) is opposite to that of the first electrode (20); the center of the top surface of the lower shell (2) is recessed downward to form a first groove (10a), and the center of the bottom surface of the upper shell (7) is recessed upward to form a second groove (10b), and the first groove (10a) and the second groove (10b) together form a containing cavity; and the channel of the clamp block (5) is a vertical channel.
2. The eluent generator according to claim 1, characterized in that: It also includes an upper flange pressing piece (12) and a lower flange pressing piece (13), wherein the upper flange pressing piece (12) is mounted on the top of the upper shell (7), and the lower flange pressing piece (13) is mounted on the bottom of the lower shell (2), and the upper flange pressing piece (12), the upper shell (7), the lower shell (2) and the lower flange pressing piece (13) are detachably connected together from top to bottom by bolts passing through them.
3. The eluent generator according to claim 1, characterized in that: The cross-sectional area of the second groove (10b) is greater than the cross-sectional area of the first groove (10a), and the shape of the clamping block (5) is compatible with the accommodating cavity.
4. The eluent generator according to claim 1, characterized in that: The channels are in the shape of long strips, and the channels are arranged in parallel.
5. The eluent generator according to claim 1 or 3, characterized in that: The bottom of the first groove (10a) protrudes upward to form a closed, annular eluent holding protrusion (100); the first electrode mesh (3) is completely located in the area surrounded by the eluent holding protrusion (100); the area of the ion exchange membrane (4) is larger than the area of the first electrode mesh (3); a portion of the ion exchange membrane (4) is located in the area surrounded by the eluent holding protrusion (100), and a portion is pressed against the top surface of the eluent holding protrusion (100) by a clamp (5); the area surrounded by the eluent holding protrusion (100) is the eluent flow area.
6. The eluent generator according to claim 5, characterized in that: The bottom surface of the clamping block (5) protrudes downward to form a closed, annular sealing lip (200), and the sealing lip (200) is adapted to the shape of the eluent receiving protrusion (100). The sealing lip (200) and the eluent receiving protrusion (100) clamp the ion exchange membrane (4) therebetween.
7. The eluent generator according to claim 1, characterized in that: The first electrode (20) is electrically connected to the first electrode network (3) via a conductive wire in a bent state, and the second electrode (30) is electrically connected to the second electrode network (6) via a conductive wire in a bent state.