CN215626938U - Double-flow-rate ion exchange bed - Google Patents
Double-flow-rate ion exchange bed Download PDFInfo
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- CN215626938U CN215626938U CN202120777326.0U CN202120777326U CN215626938U CN 215626938 U CN215626938 U CN 215626938U CN 202120777326 U CN202120777326 U CN 202120777326U CN 215626938 U CN215626938 U CN 215626938U
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Abstract
The utility model is suitable for the technical field of ion exchange equipment, and particularly relates to a double-flow-rate ion exchange bed which comprises a body and a water distribution assembly, wherein the body is of a hollow structure, a top cavity, a first cavity, a second cavity and a bottom cavity are sequentially arranged in the body from one end to the other end, the top cavity is communicated with the first cavity, the first cavity is communicated with the second cavity, and the second cavity is communicated with the bottom cavity through the water distribution assembly, and the water distribution assembly is used for controlling the water flow state. The double-flow-rate ion exchange bed provided by the embodiment of the utility model has the advantages that the structure is simple, the design is reasonable, the water distribution assembly is arranged to control water flow, the flow rate of the water flow is reduced, the uniform flow rate ensures that the water flow can be fully contacted with resin, the utilization rate of regenerated liquid is improved, and the overall operation cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of ion exchange equipment, and particularly relates to a double-flow-rate ion exchange bed.
Background
Floating bed, full chamber bed devices are often used in ion exchange processes. When the equipment is used, the deviation between the running flow and the regeneration flow is large, and the ratio of the regeneration flow to the running flow is less than 30 percent. The internal structure of the existing equipment adopts a large-flow design during operation, so that a bias flow phenomenon is generated during regeneration low-flow operation.
The existing ion exchange equipment (floating bed and full-chamber bed) has the following water distribution modes:
1. adopts a uniform flow velocity water distribution mode. The water distribution structure adopted by the operation and the regeneration is consistent. The design flow is the maximum flow at runtime. During operation, the water can be fully contacted with the resin, and during regeneration, the regeneration liquid flows through the resin layer in strands because the flow rate of the regeneration liquid is smaller than that of the operation. Many resins do not contact with the regenerating liquid, the regeneration degree of the whole resin layer is not enough, and the cycle water yield is reduced when the equipment is operated. Meanwhile, a large amount of regeneration liquid is discharged from the regeneration waste water, so that the waste of the regeneration liquid and the difficulty of subsequent waste water treatment are caused. In order to avoid the problem of insufficient regeneration, the structural mode needs to use more regeneration liquid in the regeneration process to improve the regeneration liquid of the resin and meet the requirement of system operation.
2. Adopts a water distribution mode of uniform flow velocity and unidirectional flow limiting. Although the difference between the running flow and the regeneration flow is considered in the design of the equipment structure, all water distribution caps are the maximum flux in the running process, and the running requirement is met; all water caps are reduced by half flow during regeneration, and the requirement of low flow at the night of regeneration is met. In the design process of the bed type, a large number of water distribution caps are required to be arranged for large flow during operation, and in the regeneration process, all the water caps limit the flow, but the water distribution effect is improved due to the adoption of the same throttling mode and the number of the water caps, but the phenomenon of serious drift exists.
SUMMERY OF THE UTILITY MODEL
It is an aim of embodiments of the present invention to provide a dual flow rate ion exchange bed which addresses the problems set out in the background.
The embodiment of the utility model is realized in such a way that the double-flow-rate ion exchange bed comprises a body and a water distribution assembly, wherein the body is of a hollow structure, a top cavity, a first cavity, a second cavity and a bottom cavity are sequentially arranged in the body from one end to the other end, the top cavity is communicated with the first cavity, the first cavity is communicated with the second cavity, the second cavity is communicated with the bottom cavity through the water distribution assembly, and the water distribution assembly is used for controlling the water flow state.
Preferably, the water distribution assembly comprises a first water distribution plate, a second water distribution plate and a third water distribution plate, the first water distribution plate, the second water distribution plate and the third water distribution plate are respectively arranged between the top cavity and the first cavity, between the first cavity and the second cavity and between the second cavity and the bottom cavity, a plurality of groups of water passing short pipes are embedded in the first water distribution plate, the lower ends of the water passing short pipes on the first water distribution plate are respectively fixedly provided with a first water collecting cap, the upper and lower ends of the water passing short pipes on the second water distribution plate are respectively fixedly provided with a first water distribution cap and a second water collecting cap, the upper and lower ends of the water passing short pipes on the third water distribution plate are respectively fixedly provided with a second water distribution cap and a third water collecting cap, at least one first water distribution cap is internally provided with a one-way valve, and at least one second water distribution cap is provided with a one-way valve.
Preferably, the water passing short pipes on the first water distribution plate, the second water distribution plate and the third water distribution plate are all non-uniformly distributed.
Preferably, two ends of the body are respectively provided with a fluid inlet and a fluid outlet.
Preferably, the two fluid inlets and outlets are symmetrically arranged.
Preferably, the first water distribution plate, the second water distribution plate and the third water distribution plate are arranged in parallel.
Preferably, the end of the top cavity, which is far away from the bottom cavity, is of an arc surface structure.
The double-flow-rate ion exchange bed provided by the embodiment of the utility model has the advantages that the structure is simple, the design is reasonable, the water distribution assembly is arranged to control water flow, the flow rate of the water flow is reduced, the uniform flow rate ensures that the water flow can be fully contacted with resin, the utilization rate of regenerated liquid is improved, and the overall operation cost is reduced.
Drawings
FIG. 1 is a schematic diagram of a dual flow rate ion exchange bed according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the drawings: 1. a first water collecting cap; 2. a first cavity; 3. a first water distribution cap; 4. a second water collecting cap; 5. a second cavity; 6. a second water distribution cap; 7. and a third water collecting cap.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 and 2, a structural schematic diagram of a dual flow-rate ion exchange bed provided in an embodiment of the present invention is shown, where the dual flow-rate ion exchange bed includes a body and a water distribution assembly, the body is a hollow structure, and a top cavity, a first cavity 2, a second cavity 5, and a bottom cavity are sequentially disposed from one end to the other end in the body, and the top cavity is communicated with the first cavity 2, the first cavity 2 is communicated with the second cavity 5, and the second cavity 5 is communicated with the bottom cavity through the water distribution assembly, and the water distribution assembly is used to control a water flow state.
As shown in fig. 1 and 2, as a preferred embodiment of the present invention, the water distribution assembly includes a first water distribution plate, a second water distribution plate and a third water distribution plate, the first water distribution plate, the second water distribution plate and the third water distribution plate are respectively disposed between the top cavity and the first cavity 2, between the first cavity 2 and the second cavity 5 and between the second cavity 5 and the bottom cavity, a plurality of sets of water passing short pipes are embedded in the first water distribution plate, the lower ends of the water passing short pipes on the first water distribution plate are respectively fixedly provided with a first water collecting cap 1, the upper and lower ends of the water passing short pipes on the second water distribution plate are respectively fixedly provided with a first water distribution cap 3 and a second water collecting cap 4, the upper and lower ends of the water passing short pipes on the third water distribution plate are respectively fixedly provided with a second water distribution cap 6 and a third water collecting cap 7, at least one first water distribution cap 3 is internally provided with a one-way valve, at least one second water distribution cap 6 is provided with a one-way valve.
In one embodiment of the utility model, the body is divided into a plurality of independent cavities by the water distribution assembly, the cavities are communicated with each other by the water distribution assembly, the required resin is filled in each cavity, water enters from the lower part of the body and is finally discharged from the upper part of the body in the operation process of the device, the water is treated by the resin layer, the water is collected by the first water collecting cap 1, the second water collecting cap 4 and the third water collecting cap 7 in the process, and then directly enters the adjacent cavities through the water passing short pipe, the first water distribution cap 3 or the second water distribution cap 6, the whole operation flow direction is that the bottom cavity, the second cavity 5, the first cavity 2 and the top cavity are formed, the regeneration liquid enters from the upper part of the body in the regeneration process of the device, waste liquid is discharged from the lower part of the body, the regeneration is carried out on the resin by the resin layer, and the regeneration liquid enters through the water passing short pipe, the first water distribution cap 3 or the second water distribution cap 6, finally, the water enters an adjacent cavity through the first water collecting cap 1, the second water collecting cap 4 and the third water collecting cap 7, so that the flow directions of water and regenerated liquid are opposite during the operation and the regeneration of the equipment; in the utility model, the first water collecting cap 1, the second water collecting cap 4, the third water collecting cap 7, the first water distributing cap 3 and the second water distributing cap 6 are sufficient in quantity, the design flux is 3-5 times of that of the existing ion exchange equipment, so that the resistance is very small when water flows pass through a non-chasing device, and the generated pressure difference is less than 0.02 MPa. Therefore, a water pump with low lift can be selected when the water feed pump is designed, and a large amount of energy is saved in the operation process. In the utility model, a one-way valve is arranged on one part of the first water distribution cap 3 and the second water distribution cap 6, so that most of the first water distribution cap 3 and the second water distribution cap 6 are in a closed state during regeneration, only a small amount of the first water distribution cap 3 and the second water distribution cap 6 are in an open state, when the regeneration liquid reaches the first water distribution cap 3 and the second water distribution cap 6, the regeneration liquid is uniformly distributed on the lower resin layer under the action of the first water distribution cap 3 and the second water distribution cap 6 which are opened by a small amount, and the number of the first water distribution cap 3 and the second water distribution cap 6 which are opened is calculated according to the flow of the regeneration liquid, so that the condition that the regeneration liquid flows into the resin layer in a strand due to the uneven distribution of the regeneration liquid caused by the large number of the first water distribution cap 3 and the second water distribution cap 6 can be avoided.
As shown in fig. 1 and 2, as a preferred embodiment of the present invention, the water passing short pipes on the first water distribution plate, the second water distribution plate and the third water distribution plate are all non-uniformly distributed.
In one embodiment of the present invention, due to the uneven distribution of the first water distribution cap 3 and the second water distribution cap 6, the distribution of the regeneration liquid is more uniform and infinitely approaches to the same flow rate state of the whole device cross section. The contact between the regeneration liquid and the resin is more sufficient, the contact time is longer, and the regeneration effect of the resin is better. Meanwhile, the utilization rate of the regeneration liquid is improved, and the waste amount is reduced.
As shown in fig. 1 and 2, as a preferred embodiment of the present invention, a fluid inlet and a fluid outlet are respectively formed at both ends of the body.
As shown in fig. 1 and 2, as a preferred embodiment of the present invention, two fluid inlets and two fluid outlets are symmetrically arranged.
In one embodiment of the present invention, the two fluid inlets and outlets are symmetrically arranged, so that water can be fed or discharged.
As shown in fig. 1 and 2, as a preferred embodiment of the present invention, the first water distribution plate, the second water distribution plate and the third water distribution plate are arranged in parallel with each other.
As shown in fig. 1 and 2, as a preferred embodiment of the present invention, the ends of the top cavity and the bottom cavity away from each other are both arc-shaped structures.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The double-flow-rate ion exchange bed is characterized by comprising a body and a water distribution assembly, wherein the body is of a hollow structure, a top cavity, a first cavity, a second cavity and a bottom cavity are sequentially arranged in the body from one end to the other end, the top cavity is communicated with the first cavity, the first cavity is communicated with the second cavity, the second cavity is communicated with the bottom cavity through the water distribution assembly, and the water distribution assembly is used for controlling the water flow state.
2. The dual flow rate ion exchange bed of claim 1, wherein the water distribution assembly comprises a first water distribution plate, a second water distribution plate and a third water distribution plate, the first water distribution plate, the second water distribution plate and the third water distribution plate are respectively disposed between the top cavity and the first cavity, between the first cavity and the second cavity and between the second cavity and the bottom cavity, the first water distribution plate, the second water distribution plate and the third water distribution plate are all embedded with a plurality of sets of water passing short pipes, the lower ends of the water passing short pipes on the first water distribution plate are all fixedly provided with a first water collecting cap, the upper and lower ends of the water passing short pipes on the second water distribution plate are respectively fixedly provided with a first water distribution cap and a second water collecting cap, the upper and lower ends of the water passing short pipes on the third water distribution plate are respectively fixedly provided with a second water distribution cap and a third water collecting cap, at least one of the first water distribution caps is provided with a one-way valve, at least one second water distribution cap is provided with a one-way valve.
3. The dual flow rate ion exchange bed of claim 2, wherein the water distribution stubs on the first, second and third water distribution plates are all non-uniformly distributed.
4. The dual flow rate ion exchange bed of claim 1, wherein the body is provided with a fluid inlet and outlet at each end.
5. The dual flow rate ion exchange bed of claim 4, wherein the two fluid inlet and outlet ports are symmetrically disposed.
6. The dual flow rate ion exchange bed of claim 2, wherein the first, second and third water distribution plates are disposed parallel to each other.
7. The dual flow rate ion exchange bed of claim 1, wherein the ends of the top and bottom cavities remote from each other are both cambered surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120777326.0U CN215626938U (en) | 2021-04-16 | 2021-04-16 | Double-flow-rate ion exchange bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120777326.0U CN215626938U (en) | 2021-04-16 | 2021-04-16 | Double-flow-rate ion exchange bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215626938U true CN215626938U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120777326.0U Active CN215626938U (en) | 2021-04-16 | 2021-04-16 | Double-flow-rate ion exchange bed |
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| CN (1) | CN215626938U (en) |
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2021
- 2021-04-16 CN CN202120777326.0U patent/CN215626938U/en active Active
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