CN114618596B - Resin regeneration device and resin regeneration method for online hydrogen conductivity meter - Google Patents
Resin regeneration device and resin regeneration method for online hydrogen conductivity meter Download PDFInfo
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- CN114618596B CN114618596B CN202111547893.8A CN202111547893A CN114618596B CN 114618596 B CN114618596 B CN 114618596B CN 202111547893 A CN202111547893 A CN 202111547893A CN 114618596 B CN114618596 B CN 114618596B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/60—Cleaning or rinsing ion-exchange beds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/80—Automatic regeneration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention discloses an online hydrogen conductivity meter resin regeneration device and a resin regeneration method, wherein the online hydrogen conductivity meter resin regeneration device comprises a water inlet pipe, an acid liquor preparation box, a waste liquor recovery box, a failure resin column, a small mixed bed and a standby resin column, wherein the water inlet pipe is provided with a branch pipe which is respectively connected with a water inlet of the small mixed bed and a water inlet of the standby resin column; a third electric conduction meter is arranged on the water outlet pipe of the standby resin column; the water outlet of the small mixed bed is connected with the water inlet of the acid liquor preparation box through a first pipeline; the water outlet of the acid liquor preparation box is connected with the inlet of the failure resin column through a second pipeline; and the outlet of the failure resin column is connected with the inlet of the waste liquid recovery box through a third pipeline. The invention has the advantages of high regeneration degree, short regeneration time and the like.
Description
Technical Field
The invention relates to the technical field of resin regeneration, in particular to an on-line hydrogen conductivity meter resin regeneration device and a resin regeneration method.
Background
The on-line hydrogen conductivity meter is used for monitoring the quality of water vapor such as boiler water supply, condensed water, steam, refined treatment and the like in a power plant, and the hydrogen conductivity is an important index of the quality of reaction water vapor. The hydrogen conductivity is a conductivity value obtained by measuring a water sample to be measured through the ion exchange resin continuously, and the resin needs to be regenerated after working for a period of time, otherwise, the detection value of the hydrogen conductivity of the water quality is seriously influenced, the hydrogen conductivity is a common cause for generating errors in the hydrogen conductivity meter, and a 5% hydrochloric acid soaking method is adopted in most power plants for the regeneration treatment of the failure resin. The method has the advantages of long time consumption, high resin consumption, low regeneration degree, large working amount of the back and forth ramming resin and easy pollution of the resin.
The foregoing background is only for the purpose of facilitating an understanding of the principles and concepts of the invention and is not necessarily in the prior art to the present application and is not intended to be used as an admission that such background is not entitled to antedate such novelty or otherwise inventive matter by virtue of prior art in this application.
Disclosure of Invention
The invention aims to provide an on-line hydrogen conductivity meter resin automatic regeneration device so as to solve the technical problems of high resin consumption and low regeneration degree in the prior art.
Therefore, the invention provides an on-line hydrogen conductivity meter resin regeneration device and a resin regeneration method.
Preferably, the present invention may further have the following technical features:
the automatic resin regeneration device for the online hydrogen conductivity meter comprises a water inlet pipe, an acid liquor preparation box, a waste liquor recovery box, a failure resin column, a small mixed bed and a standby resin column, wherein the water inlet pipe is provided with a branch pipe which is respectively connected with a water inlet of the small mixed bed and a water inlet of the standby resin column; a third electric conduction meter is arranged on the water outlet pipe of the standby resin column; the water outlet of the small mixed bed is connected with the water inlet of the acid liquor preparation box through a first pipeline; the water outlet of the acid liquor preparation box is connected with the inlet of the failure resin column through a second pipeline; and an outlet of the failure resin column is connected with an inlet of the waste liquid recovery box through a third pipeline.
Further, the spare resin column is a cationic resin column.
Further, the failure resin column, the standby resin column, the small mixed bed, the acid liquor preparation box and the waste liquor recovery box are all provided with quick connectors which are connected with pipelines.
Further, the first pipeline is also provided with a first conductivity meter, and the second pipeline is provided with an isolation valve and a metering pump; the third pipeline is provided with a third flow regulating valve, a miniature centrifugal pump and a second conductivity meter; and a drain pipe is arranged at the water outlet of the waste liquid recovery box, and a fourth flow regulating valve and a Ph meter are arranged on the drain pipe.
Further, the device also comprises a flat-plate cart and a medicament bin, wherein the waste liquid recovery box is fixed on the flat-plate cart, and the acid liquid preparation box and the medicament bin are fixed above the waste liquid recovery box; the small mixed bed and the standby resin column are arranged in the medicament bin, and the top surface of the medicament bin is also provided with connecting holes for connecting the water inlet pipe, the water outlet of the small mixed bed and the water outlet of the standby resin column respectively.
Further, the bottom of the flat cart is provided with rollers, and the outside of the medicament bin is provided with a handle.
An automatic regeneration method of on-line hydrogen conductivity meter resin comprises a regeneration device and further comprises the following steps:
s1, respectively connecting an online water sample into a standby resin column and a small mixed bed, treating the online water sample by the small mixed bed to obtain desalted water, and introducing the obtained desalted water into an acid liquor preparation box;
s2, adding high-grade pure hydrochloric acid and desalted water into an acid liquor preparation box, and mixing to prepare a regeneration solution of 5% hydrochloric acid;
s3, introducing the regenerated liquid into a failure resin column, controlling the flow rate of the regenerated liquid to be 3-3.5L/h, and ending when the regenerated liquid in the acid liquid preparation tank 5 is consumed;
further, after regeneration is finished, a water outlet of the small mixed bed is connected to an inlet of a failure resin column, the regenerated resin is washed, a first conductivity meter and a second conductivity meter are observed, and when the conductivity of water inlet and water outlet is consistent, washing is finished.
Further, the conductivity of desalted water fed into the acid solution preparation box is less than 0.10 mu S/cm; the ratio of the positive resin to the negative resin in the small mixed bed is 2:1; the volume ratio of the failure resin to the regenerated liquid is 1: (3.7-5.2).
Further, the volume ratio of the failure resin to the regenerated liquid is 1: (4.1 to 4.8).
Compared with the prior art, the invention has the beneficial effects that: the standby resin column, the small mixed bed, the acid liquor preparation box and the waste liquor recovery box are integrated on the flat cart, when the failed resin column needs to be regenerated, the flat cart can be moved to the side of the failed resin column, the second pipeline is connected with the inlet of the failed resin column through the quick connector, and the third pipeline is connected with the outlet of the failed resin column through the quick connector. Therefore, the flat cart can be moved to the side of the failed resin column and connected through the quick connector, so that the failed resin column can be regenerated on site, the resin does not need to be rammed back and forth, and the working efficiency is remarkably improved. The waste liquid recovery box can form the siphon effect in the bottom, and under the condition that the centrifugal pump loses power, the regeneration liquid still can be regenerated by the siphon principle, and no extra power is needed.
Drawings
Fig. 1 is a process flow diagram of the present invention.
Fig. 2 is a schematic structural view of the present invention.
FIG. 3 is a schematic view of the structure of the small mixed bed of the present invention.
FIG. 4 is a schematic view of the structure of the spare resin column of the present invention.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and with reference to the accompanying drawings. It should be emphasized that the following description is merely exemplary in nature and is in no way intended to limit the scope of the invention or its applications.
Non-limiting and non-exclusive embodiments will be described with reference to the following drawings, in which like reference numerals refer to like elements unless otherwise specified.
The automatic resin regeneration device for the online hydrogen conductivity meter shown in figures 1-4 comprises a water inlet pipe 1, an acid liquid preparation box 5, a waste liquid recovery box 12, a failure resin column 8, a small mixed bed 2 and a standby resin column 16, wherein the water inlet pipe 1 is provided with a branch pipe which is respectively connected with a water inlet of the small mixed bed 2 and a water inlet of the standby resin column 16; the outlet pipe of the spare resin column 16 is connected with a third conductivity meter. Two ends of the first pipeline 3 are respectively connected with the water outlet of the small mixed bed 2 and the water inlet of the acid liquor preparation tank 5. The water outlet of the acid liquor preparation box 5 is connected with the inlet of the failure resin column 8 through a second pipeline 7. The outlet of the failed resin column 8 is connected with the inlet of the waste liquid recovery tank 12 through a third pipe 9. The water sample is treated by the small mixed bed 2, so that the technical requirement can be met when the water sample comes out through the small mixed bed 2, the desalted water is not required to be carried from a laboratory, the integrity is strong, and the pollution can be avoided.
More specifically, the spare resin column 16 is a cationic resin column. When the resin is regenerated, the water sample is introduced by using the standby resin column guide 8, so that the real continuous display of the online hydrogen conductivity data can be ensured, the accuracy and the continuity of the online data are ensured, and the operation judgment is not influenced. In the case of online data fluctuation, whether or not data fluctuation is caused by resin failure can be judged by connecting the spare resin column 8.
The inlet and outlet of the failed resin column 8 are fitted with quick connectors. Through setting up and connect soon, the pipe connection is convenient, tight, can realize regeneration on spot, need not to make a round trip to tamper the resin, and work efficiency is showing and is improving, can also avoid the resin to pollute and at the resin loss of flushing in-process. The connection between the acid preparation tank 5 and the spent resin column 8 must be tight and not bubble, otherwise the degree of resin regeneration will be affected. In the preferred embodiment, the stand-by resin column 16, the small mixed bed 2, the acid liquor preparation tank 5 and the waste liquor recovery tank 12 are all provided with quick connectors.
The water inlet pipe 1 is also provided with a first flow regulating valve 6, the first pipeline 3 is also provided with a first conductivity meter, and the second pipeline is provided with an isolation valve 18 and a metering pump; the third pipeline 9 is provided with a third flow regulating valve 11, a miniature centrifugal pump 10 and a second conductivity meter. The water outlet of the waste liquid recovery box 12 is provided with a drain pipe 13, and a fourth flow regulating valve 19 and a Ph meter are arranged on the drain pipe 13.
The acid liquor preparing tank 5 and the waste liquor recycling tank 12 are made of PE environment-friendly materials. The standby resin column 16, the small mixed bed 2, the acid liquor preparation tank 5 and the waste liquor recovery tank 12 are all made of organic glass materials. The side of the acid liquor preparation box 5 is provided with scales, the bottom is also provided with a magnetic stirrer, and the mixing efficiency of the regenerated liquor is accelerated. The water inlet pipe 1, the first pipeline 3, the second pipeline 7 and the third pipeline 13 are PE hoses. The first flow rate regulating valve 6, the isolation valve and the third flow rate regulating valve 11 are ball valves.
The technical scheme is further improved, and the device further comprises a flat-plate trolley and a medicament bin 20, wherein the waste liquid recovery box 12 is fixed on the flat-plate trolley, and the acid liquid preparation box 5 and the medicament bin 20 are fixed above the waste liquid recovery box 12. The small mixed bed 2 and the standby resin column 16 are arranged in the medicament bin 20, and the top surface of the medicament bin 20 is also provided with connecting holes (101, 21,161) for connecting the water inlet pipe 1, the water outlet of the small mixed bed 2 and the water outlet of the standby resin column 8 respectively. The bottom of the flat cart is provided with rollers 40, and the outside of the medicine bin 20 is provided with a handle 30, so that the flat cart can be moved conveniently. The standby resin column 16, the small mixed bed 2, the acid liquor preparation tank 5 and the waste liquor recovery tank 12 are integrated on the flat cart, when the failed resin column 8 needs to be regenerated, the flat cart can be moved to the side of the failed resin column 8, the second pipeline 7 is connected with the inlet of the failed resin column 8 through a quick connector, and the third pipeline 9 is connected with the outlet of the failed resin column 8 through a quick connector. Therefore, the flat-plate trolley is moved to the side of the failed resin column 8 and connected through the quick connector, the failed resin column 8 can be regenerated in situ, the resin is not required to be rammed back and forth, and the working efficiency is remarkably improved. The waste liquid recovery tank 12 can form a siphon effect at the bottom, and the regenerated liquid can still be regenerated according to the siphon principle under the condition that the centrifugal pump 10 is powered off, so that additional power is not needed.
Cleaning of the spent resin column 8. After the resin regeneration is finished, an online water sample is connected to the water inlet of the small mixed bed 2 through the water inlet pipe 1, the water outlet of the small mixed bed 2 is connected with the inlet of the failure resin column 8, the outlet of the failure resin column 8 is connected with the waste liquid recovery box 12, and when the first conductivity meter arranged on the first pipeline 3 is consistent with the second conductivity meter arranged on the third pipeline 9, flushing is finished.
And (5) treating waste liquid. And adding sodium hydroxide solution into the waste liquid recovery tank 12, continuously stirring, detecting the pH value of the solution, and discharging the waste liquid recovery tank 12 when the pH value is regulated to 6-9 and discharging the waste liquid into a trench through a drain pipe 13.
An automatic regeneration method of on-line hydrogen conductivity meter resin, comprising the regeneration device, and further comprising the following steps:
s1, an online water sample is respectively connected into a standby resin column 16 and a small mixed bed 2 through a water inlet pipe 1, desalted water is obtained after the online water sample is treated by the small mixed bed 2, and the obtained desalted water is introduced into an acid liquor preparation box 5;
s2, adding high-grade pure hydrochloric acid (35% purity) into an acid liquor preparation box 5, and mixing with desalted water to prepare a regeneration solution of 5% hydrochloric acid;
s3, introducing the regenerated liquid into a failure resin column 8, and controlling the flow rate of the regenerated liquid to be 3-3.5L/h until the regenerated liquid in the acid liquor preparation tank 5 is completely consumed;
and S4, after regeneration is finished, connecting a water outlet of the small mixed bed 2 to an inlet of the ineffective resin column 8, flushing the regenerated resin, observing a first conductivity meter and a second conductivity meter, and finishing flushing when the conductivity of the water inlet and the water outlet is consistent.
The conductivity of the desalted water discharged from the on-line water sample through the small mixing bed 2 is less than 0.10 mu S/cm, namely the conductivity of the desalted water entering the acid liquor preparing box 5 is less than 0.10 mu S/cm, which meets the requirements.
In a preferred embodiment, referring to fig. 3-4, the ratio of the cationic to the anionic resin in the small mixed bed 2 is 2:1, so as to ensure that the regenerated liquid solvent is pure and free of impurities, and ensure the purity of 5% hydrochloric acid. The upper and lower parts of the small mixed bed 2 and the spare resin column 16 are respectively provided with a water distribution layer.
The volume ratio of the failure resin to the regenerated liquid is 1: (3.7-5.2), the preferred volume ratio of the spent resin to the regeneration liquid is 1: (3.8-4.5).
In a specific embodiment, 1.5L of the failed resin corresponds to 6.6L of the regeneration liquid, the flow rate of the regeneration liquid is controlled to be 3L/h, the regeneration time is 1.89h, and the regeneration degree is 96%; or 2.5L of failure resin corresponds to 9.9L of regeneration liquid, the flow rate of the regeneration liquid is controlled to be 3L/h, the regeneration time is 3.3h, and the regeneration degree is 95.6%. The regeneration degree of the failure resin in both embodiments reaches more than 95%, and the regeneration time can be controlled between 1.8 and 3.3.
Those skilled in the art will recognize that numerous variations are possible in light of the above description, and that the examples and figures are presented for the purpose of describing one or more particular embodiments only.
While there have been described and illustrated what are considered to be example embodiments of the present invention, it will be apparent to those skilled in the art that various changes and substitutions can be made therein without departing from the spirit of the invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the invention without departing from the central concept thereof as described herein. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the invention and equivalents thereof.
Claims (9)
1. An automatic regeneration method of on-line hydrogen conductivity meter resin comprises an automatic regeneration device of on-line hydrogen conductivity meter resin: including inlet tube, acidizing fluid preparation case, waste liquid recovery case, inefficacy resin post, its characterized in that: the device also comprises a small mixed bed and a standby resin column, wherein the water inlet pipe is provided with a branch pipe which is respectively connected with a water inlet of the small mixed bed and a water inlet of the standby resin column; a third electric conduction meter is arranged on the water outlet pipe of the standby resin column; the water outlet of the small mixed bed is connected with the water inlet of the acid liquor preparation box through a first pipeline; the water outlet of the acid liquor preparation box is connected with the inlet of the failure resin column through a second pipeline; the outlet of the failure resin column is connected with the inlet of the waste liquid recovery box through a third pipeline;
the method also comprises the following steps:
s1, respectively connecting an online water sample into a standby resin column and a small mixed bed, treating the online water sample by the small mixed bed to obtain desalted water, and introducing the obtained desalted water into an acid liquor preparation box;
s2, adding high-grade pure hydrochloric acid and desalted water into an acid liquor preparation box, and mixing to prepare a regeneration solution of 5% hydrochloric acid;
and S3, introducing the regeneration liquid into a failure resin column, and controlling the flow rate of the regeneration liquid to be 3-3.5L/h until the regeneration liquid in the acid liquid preparation tank is completely consumed.
2. An on-line hydrogen conductivity meter resin auto-regeneration method according to claim 1, characterized in that: the standby resin column is a cation resin column.
3. An on-line hydrogen conductivity meter resin auto-regeneration method according to claim 1, characterized in that: the failure resin column, the standby resin column, the small mixed bed, the acid liquor preparation box and the waste liquor recovery box are all provided with quick connectors and are connected with a pipeline.
4. An on-line hydrogen conductivity meter resin auto-regeneration method according to claim 1, characterized in that: the first pipeline is also provided with a first conductivity meter, and the second pipeline is provided with an isolation valve and a metering pump; the third pipeline is provided with a third flow regulating valve, a miniature centrifugal pump and a second conductivity meter; and a drain pipe is arranged at the water outlet of the waste liquid recovery box, and a fourth flow regulating valve and a pH meter are arranged on the drain pipe.
5. An automatic regeneration method of an on-line hydrogen conductivity meter resin according to any one of claims 1 to 4, wherein: the device also comprises a flat-plate cart and a medicament bin, wherein the waste liquid recovery box is fixed on the flat-plate cart, and the acid liquid preparation box and the medicament bin are fixed above the waste liquid recovery box; the small mixed bed and the standby resin column are arranged in the medicament bin, and the top surface of the medicament bin is also provided with connecting holes for connecting the water inlet pipe, the water outlet of the small mixed bed and the water outlet of the standby resin column respectively.
6. An on-line hydrogen conductivity meter resin auto-regeneration method according to claim 5, wherein: the bottom of flat cart is equipped with the gyro wheel, and the outside of medicament storehouse is equipped with the handle.
7. An on-line hydrogen conductivity meter resin auto-regeneration method according to claim 1, characterized in that: after regeneration, the water outlet of the small mixed bed is connected to the inlet of the failure resin column, the regenerated resin is washed, the first conductivity meter and the second conductivity meter are observed, and when the conductivity of the water inlet and the water outlet is consistent, the washing is finished.
8. An on-line hydrogen conductivity meter resin auto-regeneration method according to claim 1, characterized in that: the conductivity of desalted water fed into the acid liquor preparation box is less than 0.10 mu S/cm; the ratio of the positive resin to the negative resin in the small mixed bed is 2:1; the volume ratio of the failure resin to the regenerated liquid is 1: (3.7-5.2).
9. An on-line hydrogen conductivity meter resin auto-regeneration method according to claim 1, characterized in that: the volume ratio of the failure resin to the regenerated liquid is 1: (4.1 to 4.8).
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| CN202111547893.8A CN114618596B (en) | 2021-12-16 | 2021-12-16 | Resin regeneration device and resin regeneration method for online hydrogen conductivity meter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111547893.8A CN114618596B (en) | 2021-12-16 | 2021-12-16 | Resin regeneration device and resin regeneration method for online hydrogen conductivity meter |
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| CN114618596B true CN114618596B (en) | 2023-07-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115007225B (en) * | 2022-06-20 | 2023-11-17 | 华能(福建漳州)能源有限责任公司 | Hydrogen conductivity meter resin regeneration system and regeneration method |
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| CN210934996U (en) * | 2019-10-09 | 2020-07-07 | 深圳市加美富实业有限公司 | Automatic regenerating unit of resin column |
| CN112808324A (en) * | 2021-02-01 | 2021-05-18 | 国投钦州发电有限公司 | Dynamic regenerating device for hydrogen type cation exchange resin column and operation method thereof |
| CN112892614A (en) * | 2021-01-29 | 2021-06-04 | 福建宁德核电有限公司 | Resin integrated regenerating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217189629U (en) * | 2021-12-16 | 2022-08-16 | 华润电力（贺州）有限公司 | Automatic regenerating unit of online hydrogen conductivity meter resin |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6187826B1 (en) * | 1996-02-20 | 2001-02-13 | Dibra S.P.A. | Device and method for the regeneration of mixed ion exchange resin beds |
| CN207204125U (en) * | 2017-09-15 | 2018-04-10 | 深圳市加美富实业有限公司 | Resin column automatic regeneration device |
| CN208574646U (en) * | 2018-06-14 | 2019-03-05 | 南京益能环境工程有限公司 | Mobile resin regeneration all-in-one machine |
| CN208975822U (en) * | 2018-07-10 | 2019-06-14 | 苏州市嘉洲净化设备有限公司 | A kind of water-saving resin regenerating device |
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