CN215843022U - Cation exchange column resin regeneration acid concentration control device - Google Patents
Cation exchange column resin regeneration acid concentration control device Download PDFInfo
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- CN215843022U CN215843022U CN202122121555.XU CN202122121555U CN215843022U CN 215843022 U CN215843022 U CN 215843022U CN 202122121555 U CN202122121555 U CN 202122121555U CN 215843022 U CN215843022 U CN 215843022U
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- acid
- electromagnetic valve
- exchange column
- control electromagnetic
- demineralized water
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Abstract
A cation exchange column resin regeneration acid concentration control device, an acid-base concentration meter is connected with an acid concentration controller, the acid-base concentration meter is communicated with a cation exchange column, the cation exchange column is communicated with an emptying electromagnetic valve, the acid-base concentration meter is respectively communicated with an acid liquid control electromagnetic valve and a demineralized water control electromagnetic valve, the acid liquid control electromagnetic valve and the demineralized water control electromagnetic valve are respectively communicated with an acid liquid tank and a demineralized water tank, and a drainage electromagnetic valve is communicated with the acid-base concentration meter, the acid liquid control electromagnetic valve and the demineralized water control electromagnetic valve; the controller is respectively connected with the acid concentration controller, the demineralized water pump, the acid liquid control electromagnetic valve, the demineralized water control electromagnetic valve, the exchange column control electromagnetic valve, the water discharge electromagnetic valve and the emptying electromagnetic valve to form an automatic control structure; the device has the advantages of simple structure, scientific and reasonable design, realization of the concentration requirement of the resin regeneration acid liquor, no need of manual operation, improvement of the automation level of the device, great reduction of the manual operation time, and good social and economic benefits.
Description
Technical Field
The utility model relates to the technical field of regeneration, in particular to a cation exchange column resin regenerated acid concentration control device.
Background
Cation exchange column resin separation regeneration is an important production link of thermal power plant, and after resin normally uses a certain period, when adsorption capacity reduces or receives acute serious pollution, need strengthen regeneration treatment, use chemical to make the ion exchange reaction go on in opposite direction promptly, make the functional group of resin resume original state for reuse, the procedure of resin regeneration mainly is: the principle is that after 3-5% hydrochloric acid solution which is 10-20 cm higher than the resin layer is added for soaking for 2-4 hours, the reaction is carried out to exchange H + in the resin and cations in the solution. The strong acid resin has strong dissociation capability and can dissociate and generate ion exchange action in acidic or alkaline solution. Generally, hydrochloric acid solution with the same concentration of 5-7 times volume is used for washing, then brine is used for sufficiently washing until the pH value of outlet washing liquid is neutral, then 5% sodium hydroxide solution is used for soaking for 2-4 hours according to the method, the sodium hydroxide solution with the volume of 5-7 times is washed by the same method, and then water is sufficiently used for washing until the pH value of outlet water is neutral, and the cation exchange column resin can be put into use again.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a device for controlling the concentration of regenerated acid in cation exchange column resin, which can effectively solve the problem that the concentration of acid solution cannot meet the requirement, thereby affecting the final resin effect.
In order to achieve the purpose, the technical scheme includes that the cation exchange column resin regeneration acid concentration control device comprises an acid-base concentration meter and a controller, wherein the acid-base concentration meter is connected with an acid concentration controller, an outlet of the acid-base concentration meter is communicated with an inlet of a cation exchange column through a pipeline and an exchange column control electromagnetic valve, an outlet of the cation exchange column is communicated with an emptying electromagnetic valve through a pipeline, a water inlet of the acid-base concentration meter is respectively communicated with an outlet of the acid liquid control electromagnetic valve and an outlet of a demineralized water control electromagnetic valve through pipelines, the acid liquid control electromagnetic valve and the demineralized water control electromagnetic valve are respectively communicated with an acid liquid tank and a demineralized water tank through an acid liquid pump and a demineralized water pump, and an inlet of the demineralized water control electromagnetic valve is communicated with an outlet of the acid-base concentration meter, an outlet of the acid liquid control electromagnetic valve and an outlet of the demineralized water control electromagnetic valve through pipelines;
the controller is respectively connected with the acid concentration controller, the demineralized water pump, the acid liquid control electromagnetic valve, the demineralized water control electromagnetic valve, the exchange column control electromagnetic valve, the water discharge electromagnetic valve and the emptying electromagnetic valve to form an automatic control structure.
The utility model has simple structure and scientific and reasonable design, can realize the requirement of the concentration of the resin regenerated acid liquid through the simple design of the liquid circulation pipeline, does not need manual operation, improves the automation level of the device, greatly reduces the 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 device for controlling the concentration of the regenerated acid of the cation exchange column resin comprises an acid-base concentration meter and a controller, the acid-base concentration meter 2 is connected with the acid concentration controller 1, the outlet of the acid-base concentration meter 2 is communicated with the inlet of the cation exchange column 12 through a pipeline and an exchange column control electromagnetic valve 9, the outlet of the cation exchange column 12 is communicated with the evacuation electromagnetic valve 13 through a pipeline, the water inlet of the acid-base concentration meter 2 is respectively communicated with the outlet of the acid liquid control electromagnetic valve 3 and the outlet of the demineralized water control electromagnetic valve 6 through pipelines, the acid liquid control electromagnetic valve 3 and the demineralized water control electromagnetic valve 6 are respectively communicated with the acid liquid tank 5 and the demineralized water tank 8 through an acid liquid pump 4 and a demineralized water pump 7, and the inlet of the drainage electromagnetic valve 11 is communicated with the outlet of the acid-base concentration meter 2, the outlet of the acid liquid control electromagnetic valve 3 and the outlet of the demineralized water control electromagnetic valve 6 through pipelines;
the controller 14 is respectively connected with the acid concentration controller 1, the demineralized water pump 7, the acid liquid pump 4, the acid liquid control electromagnetic valve 3, the demineralized water control electromagnetic valve 6, the exchange column control electromagnetic valve 9, the water discharge electromagnetic valve 11 and the emptying electromagnetic valve 13 to form an automatic control structure.
In order to ensure better implementation effect, the acid concentration controller 1 is an AD58-2005A online acid-base concentration meter, and the acid-base concentration meter adopts a high-performance CPU chip, a high-precision AD conversion technology and an SMT (surface mount technology) patch technology to complete multi-parameter measurement, temperature compensation, automatic range conversion and meter self-checking, and has high precision and good repeatability.
The controller 14 is a PLC controller.
And a pressure sensor 10 communicated with the inside of the pipeline is arranged on the pipeline communicated with the acid-base concentration meter 2, and the pressure sensor 10 is connected with a signal receiving end of a controller 14.
When the utility model is used specifically, the controller 14 is respectively connected with the acid concentration controller 1, the desalting water pump 7, the acid liquid pump 4, the acid liquid control electromagnetic valve 3, the desalting water control electromagnetic valve 6 and the exchange column control electromagnetic valve 9 to form an automatic control structure, the controller 14 controls to open the acid liquid control electromagnetic valve 3, the desalting water control electromagnetic valve 6 and the exchange column control electromagnetic valve 9, and starts the desalting water pump 7 and the acid liquid pump 4, the acid liquid and the desalting water sequentially enter the pipeline through the acid-base concentration meter 2 and the exchange column control electromagnetic valve 9 to reach the cation exchange column 12, the acid-base concentration meter 2 can display the acid liquid concentration in the pipeline during the acid feeding process, when the acid liquid concentration in the pipeline does not meet the specified requirements, the acid concentration controller 1 can adjust the acid concentration (the function of the acid) according to the process requirements, the adjustment concentration range is 0-10%, and continuously monitoring the concentration of acid in the pipeline, and after the acid solution and the desalted water react with the cation exchange column 12, opening the emptying electromagnetic valve 13 under the control of the controller 14 to discharge the liquid in the pipeline.
In the acid inlet process, the pressure sensor 10 monitors whether the pressure of the liquid pipeline is normal in real time, if the pressure exceeds the standard, the pressure sensor 10 feeds back a signal to the controller 14, and the controller 14 reduces the flow of the acid and the brine by adjusting the brine removal pump 7 and the acid liquid pump 4, or controls to open the drainage electromagnetic valve 11, adjusts the pressure in the pipeline, and closes the drainage electromagnetic valve 11 when the pressure is normal.
The utility model can realize the concentration requirement of resin regeneration acid liquor through simple liquid circulation pipeline design, realizes the automatic in-situ sealing of the regeneration process, does not need manual operation, improves the automation level of the device, greatly reduces the manual operation time, improves the working efficiency and has good social and economic benefits.
Claims (4)
1. A cation exchange column resin regeneration acid concentration control device comprises an acid-base concentration meter and a controller, and is characterized in that the acid-base concentration meter (2) is connected with an acid concentration controller (1), the outlet of the acid-base concentration meter (2) is communicated with the inlet of a cation exchange column (12) through a pipeline and an exchange column control electromagnetic valve (9), the outlet of the cation exchange column (12) is communicated with an emptying electromagnetic valve (13) through a pipeline, the water inlet of the acid-base concentration meter (2) is respectively communicated with the outlet of an acid liquid control electromagnetic valve (3) and the outlet of a demineralized water control electromagnetic valve (6) through pipelines, the acid liquid control electromagnetic valve (3) and the demineralized water control electromagnetic valve (6) are respectively communicated with an acid liquid tank (5) and a demineralized water tank (8) through an acid liquid pump (4) and a demineralized water pump (7), the inlet of the dewatering electromagnetic valve (11) is communicated with the outlet of the acid-base concentration meter (2) through a pipeline, The outlet of the acid liquor control electromagnetic valve (3) is communicated with the outlet of the demineralized water control electromagnetic valve (6);
the controller (14) is respectively connected with the acid concentration controller (1), the demineralized water pump (7), the acid liquid pump (4), the acid liquid control electromagnetic valve (3), the demineralized water control electromagnetic valve (6), the exchange column control electromagnetic valve (9), the water discharge electromagnetic valve (11) and the emptying electromagnetic valve (13) to form an automatic control structure.
2. The cation exchange column resin regeneration acid concentration control device according to claim 1, wherein the acid concentration controller (1) is an on-line acid-base concentration meter with model number AD 58-2005A.
3. The cation exchange column resin regenerating acid concentration control device according to claim 1, characterized in that the controller (14) is a PLC controller.
4. The cation exchange column resin regeneration acid concentration control device according to claim 1, wherein a pipeline communicated with the acid-base concentration meter (2) is provided with a pressure sensor (10) communicated with the inside of the pipeline, and the pressure sensor (10) is connected with a signal receiving end of the controller (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122121555.XU CN215843022U (en) | 2021-09-03 | 2021-09-03 | Cation exchange column resin regeneration acid concentration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122121555.XU CN215843022U (en) | 2021-09-03 | 2021-09-03 | Cation exchange column resin regeneration acid concentration control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215843022U true CN215843022U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122121555.XU Active CN215843022U (en) | 2021-09-03 | 2021-09-03 | Cation exchange column resin regeneration acid concentration control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215843022U (en) |
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2021
- 2021-09-03 CN CN202122121555.XU patent/CN215843022U/en active Active
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