CN215843021U - Acid liquor circulating system of cation exchange column resin regenerating unit - Google Patents
Acid liquor circulating system of cation exchange column resin regenerating unit Download PDFInfo
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- CN215843021U CN215843021U CN202122120965.2U CN202122120965U CN215843021U CN 215843021 U CN215843021 U CN 215843021U CN 202122120965 U CN202122120965 U CN 202122120965U CN 215843021 U CN215843021 U CN 215843021U
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Abstract
An acid liquor circulating system of a cation exchange column resin regenerating device, an acid liquor tank and a desalting water tank are respectively communicated with an acid liquor pump and a desalting water pump, a first water inlet electromagnetic valve and a second water inlet electromagnetic valve are connected in series between the first water inlet electromagnetic valve and the second water inlet electromagnetic valve, the first water inlet electromagnetic valve and the first water outlet electromagnetic valve are communicated with the common end of a first exchange column and a second exchange column, and the second water inlet electromagnetic valve are communicated with the common end of a third exchange column and a fourth exchange column; a third water inlet electromagnetic valve, a third water discharge electromagnetic valve, a fourth water discharge electromagnetic valve and a fourth water inlet electromagnetic valve are connected in series between a pipeline between the second three-way valve and the first water inlet electromagnetic valve and a pipeline between the second three-way valve and the second water inlet electromagnetic valve; the design is scientific and reasonable, the backwashing and forward washing functions of resin regeneration are realized, the smooth disturbance of a pipeline system is effectively improved, the acid liquor mass transfer efficiency is improved, the backwashing and pretreatment time is shortened, the manual operation time is greatly shortened, and the good social and economic benefits are achieved.
Description
Technical Field
The utility model relates to a regeneration device, in particular to an acid liquor circulating system of a cation exchange column resin regeneration device.
Background
According to the requirements of GB/T12145 2016 (thermal power generation unit and steam power water vapor quality) and DL/T246 2015 (chemical supervision and guide rules), a thermal power plant needs to supervise and measure the water vapor quality in real time, wherein the measurement of the hydrogen conductivity is the most basic supervision item of the water vapor quality, and before the hydrogen conductivity is measured, sample water needs to pass through a hydrogen type cation exchange resin column to remove impurity cations. Along with the continuous measurement, the resin in the hydrogen type cation exchange column loses efficacy due to the fact that the resin is full of impurity cations, and the failed cation exchange resin needs to be regenerated; the existing service hydrogen conductance meter structural style of thermal power plant mainly has leading filter, oxygen ion exchange, electrode, conductance instrument to constitute, realizes the solution of normal position regeneration and uses cation exchange column as the body through to the import and export pipeline transformation realize two way positive and negative and upper portion drainage function, mainly is: the technical problem to be solved is how to realize the method, which is needed to be solved urgently, that is, backwashing → acid inlet (regeneration) → replacement (soaking) → front washing (flushing) → qualified water outlet → regeneration is finished.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide an acid liquor circulation system of a cation exchange column resin regeneration device, which can effectively solve the problems of low mass transfer efficiency, long backwashing and pretreatment time, and low automation degree of the existing regeneration system for soaking and regenerating acid liquor.
In order to achieve the purpose, the technical scheme includes that an acid liquor circulating system of a cation exchange column resin regeneration device comprises an acid liquor tank and a desalting water tank, liquid outlets of the acid liquor tank and the desalting water tank are respectively communicated with inlets of an acid liquor pump and a desalting water pump through pipelines, an outlet of the acid liquor pump is connected with an interface of a first three-way valve, the other two interfaces of the first three-way valve are respectively connected with an acid emptying valve and an interface of a first four-way valve, the other three interfaces of the first four-way valve are respectively communicated with an outlet of the desalting water pump, an inlet of the desalting water emptying valve and an inlet of a second three-way valve, the other two interfaces of the second three-way valve are respectively communicated with inlets of a first water inlet electromagnetic valve and a second water inlet electromagnetic valve, a first water outlet electromagnetic valve and a second water outlet electromagnetic valve are respectively connected in series between the first water inlet electromagnetic valve and the second water inlet electromagnetic valve through pipelines, and a pipeline between the first water inlet electromagnetic valve and the first water outlet electromagnetic valve is respectively communicated with an inlet of a first exchange column and a second exchange column through a tee The common ends of the column inlets are communicated, a pipeline between the second water discharge electromagnetic valve and the second water inlet electromagnetic valve is communicated with the common ends of the third exchange column and the fourth exchange column inlet through a tee joint, and a pipeline between the first water discharge electromagnetic valve and the second water discharge electromagnetic valve is communicated with the mixing emptying valve through a tee joint and a water outlet pipeline;
a third water inlet electromagnetic valve, a third water discharge electromagnetic valve, a fourth water discharge electromagnetic valve and a fourth water inlet electromagnetic valve are connected in series between a pipeline between the second three-way valve and the first water inlet electromagnetic valve and a pipeline between the second three-way valve and the second water inlet electromagnetic valve through a tee joint, the pipeline between the third water inlet electromagnetic valve and the third water discharge electromagnetic valve is communicated with the common end of the outlets of the first exchange column and the second exchange column through the tee joint, the pipeline between the fourth water discharge electromagnetic valve and the fourth water inlet electromagnetic valve is communicated with the common end of the outlets of the third exchange column and the fourth exchange column through the tee joint, and the pipeline between the third water discharge electromagnetic valve and the fourth water discharge electromagnetic valve is communicated with a water outlet pipeline through the tee joint.
The utility model has simple structure and scientific and reasonable design, realizes the functions of backwashing and forward washing (flushing) of resin regeneration, effectively improves smooth disturbance of a pipeline system, improves the mass transfer efficiency of acid liquor, reduces backwashing and pretreatment time, greatly reduces manual operation time and has good social and economic benefits.
Drawings
FIG. 1 is a block diagram of the structure of the present invention.
Detailed Description
The following detailed description of the embodiments of the utility model is provided in connection with the accompanying drawings and the detailed description.
The acid liquor circulating system of the cation exchange column resin regenerating device comprises an acid liquor tank and a desalting water tank, wherein the liquid outlets of the acid liquor tank 2 and the desalting water tank 1 are respectively communicated with the inlets of an acid liquor pump 4 and a desalting water pump 3 through pipelines, the outlet of the acid liquor pump 4 is connected with the interface of a first three-way valve 401, the other two interfaces of the first three-way valve 401 are respectively connected with the interfaces of an acid emptying valve 20 and a first four-way valve 301, the other three interfaces of the first four-way valve 301 are respectively communicated with the outlet of the desalting water pump 3, the inlet of a desalting water emptying valve 15 and the inlet of a second three-way valve 302, the other two interfaces of the second three-way valve 302 are respectively communicated with the inlets of a first water inlet electromagnetic valve 5 and a second water inlet electromagnetic valve 10, a first water inlet electromagnetic valve 7 and a second water outlet electromagnetic valve 9 are arranged between the first water inlet electromagnetic valve 5 and the second water inlet electromagnetic valve 10 in series through pipelines, the pipeline between the first water inlet electromagnetic valve 5 and the first water outlet electromagnetic valve 7 is communicated with the common end of the inlets of the first exchange column 11 and the second exchange column 12 through a tee joint, the pipeline between the second water outlet electromagnetic valve 9 and the second water inlet electromagnetic valve 10 is communicated with the common end of the inlets of the third exchange column 13 and the fourth exchange column 14 through a tee joint, and the pipeline between the first water outlet electromagnetic valve 7 and the second water outlet electromagnetic valve 9 is communicated with the mixed emptying valve 21 through a tee joint and a water outlet pipeline 701;
a third water inlet electromagnetic valve 16, a third water discharge electromagnetic valve 17, a fourth water discharge electromagnetic valve 18 and a fourth water inlet electromagnetic valve 19 are connected in series between a pipeline between the second three-way valve 302 and the first water inlet electromagnetic valve 5 and a pipeline between the second three-way valve 302 and the second water inlet electromagnetic valve 10 through a tee joint, the pipeline between the third water inlet electromagnetic valve 16 and the third water discharge electromagnetic valve 17 is communicated with the common end of the outlets of the first exchange column 11 and the second exchange column 12 through the tee joint, the pipeline between the fourth water discharge electromagnetic valve 18 and the fourth water inlet electromagnetic valve 19 is communicated with the common end of the outlets of the third exchange column 13 and the fourth exchange column 14 through the tee joint, and the pipeline between the third water discharge electromagnetic valve 17 and the fourth water discharge electromagnetic valve 18 is communicated with a water outlet pipeline 701 through the tee joint.
It should be noted that the inlets or outlets of the first exchange column 11, the second exchange column 12, the third exchange column 13 and the fourth exchange column 14 are relative, and are not specific to only inlet water or outlet water.
In order to ensure better implementation effect, a pipeline at the common end of the inlets of the first exchange column 11 and the second exchange column 12 is communicated with the first air inlet electromagnetic valve 6 through a tee joint, a pipeline at the common end of the inlets of the third exchange column 13 and the fourth exchange column 14 is communicated with the second air inlet electromagnetic valve 8 through a tee joint, and a pipeline between the first air inlet electromagnetic valve 6 and the second air inlet electromagnetic valve 8 is communicated with an air inlet pipeline through a tee joint.
The acid liquid pump 4, the demineralized water pump 3, the first water inlet electromagnetic valve 5, the second water inlet electromagnetic valve 10, the third water inlet electromagnetic valve 16, the fourth water inlet electromagnetic valve 19, the first water discharge electromagnetic valve 7, the second water discharge electromagnetic valve 9, the third water discharge electromagnetic valve 17 and the fourth water discharge electromagnetic valve 18 are respectively connected with a controller (not shown in the figure) to form an automatic control structure.
The controller is a PLC controller.
The acid liquid pump 4 and the demineralized water pump 3 are peristaltic pumps, the peristaltic pumps have the advantages of being low in noise, small in size and strong in self-absorption, the problem of high noise is solved under the condition that the use requirements are met, the cost of the peristaltic pumps is low, and the cost is further reduced.
The tee joint, the cross joint, the pipeline and the parts are all in quick-insertion sealing connection, and a structure convenient to disassemble and assemble is formed.
When the method is used specifically, when the resin in the cation exchange column fails, the regenerated ion exchange column is installed well, and the regeneration procedure is started:
step one, backwashing: opening a third water inlet electromagnetic valve 16, a fourth water inlet electromagnetic valve 19, a first water outlet electromagnetic valve 7, a second water outlet electromagnetic valve 9 and a mixed emptying valve 21, and backwashing a demineralized water pump 3, wherein demineralized water flows through a first four-way valve 301 and a second three-way valve 302, enters a first exchange column 11, a second exchange column 12, a third exchange column 13 and a fourth exchange column 14 from the third water inlet electromagnetic valve 16 and the fourth water inlet electromagnetic valve 19 respectively, and then flows out of the mixed emptying valve 21 from the first water outlet electromagnetic valve 7 and the second water outlet electromagnetic valve 9 respectively above until the effluent is clear;
second, acid addition (regeneration): closing all valves in the first step, then opening the third water inlet electromagnetic valve 16 and the fourth water inlet electromagnetic valve 19 again, starting the desalting water pump 3 and the acid liquid pump 4, and mixing the desalting water and the acid liquid into four exchange columns;
third, displacement (soaking): closing all acid liquor valves, the desalting water pump 3 and the acid liquor pump 4, allowing the mixed solution of the desalting water and the acid liquor to stand in the four cation exchange columns for a certain time to complete replacement, then opening the mixing emptying valve 21 to discharge all the liquid in the pipeline, and carrying out the next operation;
step four, washing: the first water inlet electromagnetic valve 5, the second water inlet electromagnetic valve 10, the third water discharge electromagnetic valve 17, the fourth water discharge electromagnetic valve 18 and the mixed emptying valve 21 are opened, and the demineralized water pump 3 is washed, demineralized water flows through the first four-way valve 301 and the second three-way valve 302, enters the first exchange column 11, the second exchange column 12, the third exchange column 13 and the fourth exchange column 14 from the first water inlet electromagnetic valve 5 and the second water inlet electromagnetic valve 10 respectively, then flows out of the mixed emptying valve 21 from the third water discharge electromagnetic valve 17 and the fourth water discharge electromagnetic valve 18 respectively from the upper part and the lower part until the effluent water quality reaches the standard, all the valves and the pumps are closed, and after regeneration is finished, redundant liquid in the acid liquid tank 2 and the demineralized water tank 1 can be discharged through the acid emptying valve 20 and the demineralized water emptying valve 15.
In the above working condition, the electromagnetic valve and the pump are both connected with the PLC controller to realize automatic regeneration, and the circulating pipeline is a closed pipeline, so that the siphon phenomenon is easy to generate, and the water is difficult to drain, therefore, after the first air inlet electromagnetic valve 6 and the second air inlet electromagnetic valve 8 are added, air is filled into the pipeline, the pressure intensity of the closed pipeline is increased, and the liquid drainage of the circulating pipeline is smooth.
The utility model has simple structure and scientific and reasonable design, realizes the functions of backwashing and forward washing (flushing) of resin regeneration, has the advantages of effectively increasing smooth disturbance by circulating flushing, improving the mass transfer efficiency of acid liquor, reducing the time of backwashing and pretreatment, realizing the automatic in-situ sealing of the regeneration process, needing no manual operation, improving the automation level of the device, reducing the time of manual operation, greatly improving the working efficiency, reducing the cost and having good social and economic benefits compared with the traditional soaking mode.
Claims (5)
1. An acid liquor circulating system of a cation exchange column resin regenerating device comprises an acid liquor tank and a desalting water tank, and is characterized in that liquid outlets of the acid liquor tank (2) and the desalting water tank (1) are respectively communicated with inlets of an acid liquor pump (4) and a desalting water pump (3) through pipelines, an outlet of the acid liquor pump (4) is connected with an interface of a first three-way valve (401), the other two interfaces of the first three-way valve (401) are respectively connected with an interface of an acid emptying valve (20) and an interface of a first four-way valve (301), the other three interfaces of the first four-way valve (301) are respectively communicated with an outlet of the desalting water pump (3), an inlet of a desalting water emptying valve (15) and an inlet of a second three-way valve (302), the other two interfaces of the second three-way valve (302) are respectively communicated with inlets of a first water inlet electromagnetic valve (5) and a second water inlet electromagnetic valve (10), and a first water outlet electromagnetic valve (5) and a second water inlet electromagnetic valve (10) are connected in series through pipelines (7) The pipeline between the first water inlet electromagnetic valve (5) and the first water outlet electromagnetic valve (7) is communicated with the common end of the inlets of the first exchange column (11) and the second exchange column (12) through a tee joint, the pipeline between the second water outlet electromagnetic valve (9) and the second water inlet electromagnetic valve (10) is communicated with the common end of the inlets of the third exchange column (13) and the fourth exchange column (14) through a tee joint, and the pipeline between the first water outlet electromagnetic valve (7) and the second water outlet electromagnetic valve (9) is communicated with the mixed emptying valve (21) through a tee joint and a water outlet pipeline (701);
a pipeline between the second three-way valve (302) and the first water inlet electromagnetic valve (5) and a pipeline between the second three-way valve (302) and the second water inlet electromagnetic valve (10) are connected in series with a third water inlet electromagnetic valve (16), a third water discharge electromagnetic valve (17), a fourth water discharge electromagnetic valve (18) and a fourth water inlet electromagnetic valve (19) through a tee joint, the pipeline between the third water inlet electromagnetic valve (16) and the third water discharge electromagnetic valve (17) is communicated with the common end of the outlets of the first exchange column (11) and the second exchange column (12) through the tee joint, the pipeline between the fourth water discharge electromagnetic valve (18) and the fourth water inlet electromagnetic valve (19) is communicated with the common end of the outlets of the third exchange column (13) and the fourth exchange column (14) through the tee joint, and the pipeline between the third water discharge electromagnetic valve (17) and the fourth water discharge electromagnetic valve (18) is communicated with a water outlet pipeline (701) through the tee joint.
2. The acid liquor circulation system of the cation exchange column resin regeneration device as claimed in claim 1, wherein the pipeline at the common end of the inlets of the first exchange column (11) and the second exchange column (12) is communicated with the first air inlet electromagnetic valve (6) through a tee joint, the pipeline at the common end of the inlets of the third exchange column (13) and the fourth exchange column (14) is communicated with the second air inlet electromagnetic valve (8) through a tee joint, and the pipeline between the first air inlet electromagnetic valve (6) and the second air inlet electromagnetic valve (8) is communicated with the air inlet pipeline through a tee joint.
3. The acid liquor circulation system of the cation exchange column resin regeneration device according to claim 1, wherein the acid liquor pump (4), the desalting water pump (3), the first water inlet solenoid valve (5), the second water inlet solenoid valve (10), the third water inlet solenoid valve (16), the fourth water inlet solenoid valve (19), the first water discharge solenoid valve (7), the second water discharge solenoid valve (9), the third water discharge solenoid valve (17) and the fourth water discharge solenoid valve (18) are respectively connected with a controller to form an automatic control structure.
4. The acid liquor circulation system of the cation exchange column resin regeneration device as claimed in claim 3, wherein the controller is a PLC controller.
5. The acid liquor circulation system of the cation exchange column resin regeneration device according to claim 1, wherein the acid liquor pump (4) and the desalting water pump (3) are peristaltic pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122120965.2U CN215843021U (en) | 2021-09-03 | 2021-09-03 | Acid liquor circulating system of cation exchange column resin regenerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122120965.2U CN215843021U (en) | 2021-09-03 | 2021-09-03 | Acid liquor circulating system of cation exchange column resin regenerating unit |
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| Publication Number | Publication Date |
|---|---|
| CN215843021U true CN215843021U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122120965.2U Active CN215843021U (en) | 2021-09-03 | 2021-09-03 | Acid liquor circulating system of cation exchange column resin regenerating unit |
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| Country | Link |
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| CN (1) | CN215843021U (en) |
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2021
- 2021-09-03 CN CN202122120965.2U patent/CN215843021U/en active Active
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