Fine treatment regeneration system and method adapting to resin proportion adjustment

Abstract

The invention discloses a fine treatment regeneration system and method adapting to resin proportion adjustment, a regeneration liquid inlet in the side wall of a regeneration tower is communicated with a regeneration liquid inlet pipeline through a regeneration liquid inlet valve, and a first regeneration tower middle sight glass and a second regeneration tower middle sight glass are arranged in the middle of the regeneration tower, according to the system and the method, the resin proportion of the regeneration system can be adjusted, the regeneration requirement is met, the problem of resin proportion solidification of fine processing of a traditional unit reform or a newly-built unit is solved, and the regeneration efficiency is improved. The operation level of a fine treatment regeneration system is effectively improved, resin regeneration acid and alkali consumption, self-water consumption and fine treatment operation cost are reduced, and condensate fine treatment transformation of an old unit and fine treatment construction project investment of a newly-built unit are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of power plant condensate polishing, and relates to a polishing regeneration system and method adaptable to resin ratio adjustment. Background Art

[0002] In the early 1920s, copper was used as the material for the condenser tubes of subcritical generator sets, and there were a large number of pitting or leakage problems in the condenser tubes. In order to ensure the quality of steam and water, the condensate polishing system is designed to use a bare mixed bed for desalination, and the volume ratio of cation and anion resins is designed to be 1:1. In units where the thermal system feed water is treated by full volatilization, the cation resin fails much earlier than the anion resin, resulting in low water production during the high mixing cycle, especially when the pH value of the steam and water is controlled at the upper limit of the standard requirements, and even the resin is not regenerated in time and is forced to operate in ammoniation. At the end of the operation, when the unit load suddenly increases, it is easy to cause premature leakage of impurity ions, accelerating the process of ammoniation operation. The leakage of sodium ions causes serious corrosion of the boiler water-cooled wall and turbine blades, causing problems such as increased boiler coal consumption and shortened life of the main equipment.

[0003] In addition, the purchase cost of anion resin is usually 1.5 to 2 times that of cation resin, and the ratio of anion to anion resin is 1:1, which undoubtedly increases the purchase cost of resin and the annual resin replenishment cost. In order to extend the high-mix operation cycle, the proportion of anion resin should be increased as much as possible. According to the DL 5068-2014 power plant chemical design specification, there is no pre-cation exchanger and the feed water is treated as fully volatile, and the anion and cation resin ratio is required to meet 2:1 or 3:2. This design idea can not only alleviate the problem of high-mix water production cycle, but also reduce the operating cost of the fine treatment system and the unit. However, the fine treatment regeneration system designed by most design institutes can only meet the regeneration requirements under a fixed resin ratio. As the unit accumulates year by year, a large number of resin breakage and leakage occur, causing the resin ratio to fail to meet the original design requirements, causing the resin interface after the separation of anion and cation resins to be lower than the original visible range, and the regeneration acid and alkali consumption and self-use water consumption further increase, and the fine treatment operation economy is poor.

[0004] In summary of the above problems, in order to propose a fine treatment regeneration system and method that is adaptable to resin ratio adjustment, this system can adjust the resin ratio of the regeneration system to meet the regeneration requirements, solve the problem of resin ratio solidification in the renovation of traditional units or new units, effectively improve the operation level of the fine treatment regeneration system, reduce the acid and alkali consumption and self-use water consumption of resin regeneration, and the cost of fine treatment operation, and reduce the investment in condensate polishing renovation of old units and fine treatment construction projects of new units. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and to provide a fine treatment regeneration system and method that are adaptable to resin ratio adjustment. The system and method can adjust the resin ratio of the regeneration system to meet the regeneration requirements, solve the problem of solidification of the fine treatment resin ratio in the transformation of traditional units or the construction of new units, effectively improve the operation level of the fine treatment regeneration system, reduce the acid and alkali consumption and self-use water consumption of resin regeneration, and the fine treatment operation cost, and reduce the investment in the condensate fine treatment transformation of old units and the fine treatment construction project of new units.

[0006] To achieve the above object, the present invention discloses a fine treatment regeneration system adapted to resin ratio adjustment, comprising a regeneration tower, a regeneration liquid inlet valve, a regeneration liquid inlet pipeline, a first central mirror camera and a second central mirror camera;

[0007] The regeneration liquid inlet on the side wall of the regeneration tower is connected to the regeneration liquid inlet pipeline through the regeneration liquid inlet valve, and the first regeneration tower central mirror and the second regeneration tower central mirror are arranged in the middle of the regeneration tower, wherein the first central mirror camera faces the first regeneration tower central mirror, and the second central mirror camera faces the second regeneration tower central mirror.

[0008] Furthermore, the regeneration liquid inlet pipeline is 200 to 400 mm higher than the position of the sight glass in the first regeneration tower.

[0009] Furthermore, the first central mirror camera is used to monitor the resin interface within the visible range of the central mirror in the first regeneration tower; the second central mirror camera is used to monitor the resin interface within the visible range of the central mirror in the second regeneration tower.

[0010] Furthermore, the height of the sight glass in the second regeneration tower is sufficient to observe the cation resin interface at a ratio of cation resin: anion resin = 3:1 and the anion resin interface at a ratio of cation resin: anion resin = 1:1.

[0011] Furthermore, the height of the sight glass in the first regeneration tower is sufficient to observe the cation resin interface at a ratio of cation resin: anion resin = 1:1 and the cation resin interface at a ratio of cation resin: anion resin = 3:1.

[0012] Furthermore, it also includes a regeneration tower scale, which is arranged on the outer wall of the regeneration tower.

[0013] The present invention discloses a fine treatment regeneration method adapted to resin ratio adjustment. Based on the fine treatment regeneration system adapted to resin ratio adjustment, the method comprises the following steps:

[0014] When the amount of water produced by the resin is low, the ratio of cation resin to anion resin is adjusted to 3:2-3:1, the cation resin interface is adjusted from the middle of the first regeneration tower mirror to the middle upper edge of the second regeneration tower mirror, and the anion resin interface is adjusted from the middle of the second regeneration tower mirror to the middle lower edge of the first regeneration tower mirror. The resin interface is remotely observed through the first and second mirror cameras.

[0015] The acid and alkali height required for the resin at different positions is calculated through the required acid and alkali dosage model to ensure that the resin acid and alkali consumption meets 100kg / m 3 R~200kg / m 3 R;

[0016] Open the regeneration liquid inlet valve, and the regeneration liquid enters the regeneration tower through the regeneration liquid inlet pipe to regenerate the resin. The regeneration liquid fully contacts the failed resin to fully regenerate the failed resin, ensuring that the resin interface is within the visible range of the sight glass after the resin is regenerated and expanded, and the regeneration liquid is 200 to 400 mm higher than the resin interface.

[0017] Furthermore, the formula for establishing the acid-base dosage model is:

[0018] Acid and alkali consumption = 3.14 × (R 计量箱 2 ×H 计量箱 ]×1.14×1000×0.31 / 3.14×R 再生塔 2 ×H 树脂 (1)

[0019] Among them, R 计量箱 is the radius of the metering box, H 计量箱 is the height of acid and alkali dosage, R 再生塔 is the height of the regeneration tower, H 树脂 is the resin interface height.

[0020] The height of the sight glass in the second regeneration tower is sufficient to observe the cation resin interface when the ratio of cation resin: anion resin is 3:1 and the anion resin interface when the ratio of cation resin: anion resin is 1:1.

[0021] The height of the sight glass in the first regeneration tower is sufficient to observe the cation resin interface at a ratio of cation resin: anion resin = 1:1 and the cation resin interface at a ratio of cation resin: anion resin = 3:1.

[0022] The present invention has the following beneficial effects:

[0023] The fine treatment regeneration system and method adapted to resin ratio adjustment of the present invention is remotely monitored by the first central mirror camera and the second central mirror camera during specific operation; before regeneration, the required acid and alkali dosage model is pre-established according to the resin amount at different positions, and the acid and alkali height for regeneration is automatically calculated by the model to ensure that the acid and alkali consumption of the resin meets 100kg / m 3 R~200kg / m 3 R. It should be noted that the present invention can adjust the resin ratio of the regeneration system to meet the regeneration requirements, solve the problem of resin ratio solidification in the traditional unit transformation or new unit fine treatment, effectively improve the operation level of the fine treatment regeneration system, reduce the resin regeneration acid and alkali consumption and self-use water consumption and fine treatment operation costs, and reduce the condensate fine treatment transformation of the old unit and the fine treatment construction project investment of the new unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Among them, 1 is the regeneration tower, 2 is the central mirror of the first regeneration tower, 3 is the central mirror of the second regeneration tower, 4 is the first central mirror camera, 5 is the second central mirror camera, 6 is the regeneration liquid inlet valve, 7 is the regeneration liquid inlet pipeline, 8 is the resin layer, 9 is the water cushion layer, and 10 is the regeneration tower scale. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms “include” and “comprises” indicate the presence of described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0029] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0030] It should be further understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0031] It should be understood that, although the terms first, second, third, etc. may be used to describe preset ranges, etc. in the embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are only used to distinguish preset ranges from each other. For example, without departing from the scope of the embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0032] The word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can usually be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0035] refer to Figure 1 The fine treatment regeneration system adapted to resin ratio adjustment of the present invention comprises a regeneration tower 1, a first regeneration tower central mirror 2, a second regeneration tower central mirror 3, a first central mirror camera 4, a second central mirror camera 5, a regeneration liquid inlet valve 6, a regeneration liquid inlet pipeline 7, a resin layer 8, a water cushion layer 9 and a regeneration tower scale 10.

[0036] The regeneration liquid inlet on the side wall of the regeneration tower 1 is connected to the regeneration liquid inlet pipeline 7 through the regeneration liquid inlet valve 6. The first regeneration tower central mirror 2 and the second regeneration tower central mirror 3 are arranged in the middle of the regeneration tower 1, wherein the first central mirror camera 4 faces the first regeneration tower central mirror 2, and the second central mirror camera 5 faces the second regeneration tower central mirror 3.

[0037] As an embodiment of the present invention, the regeneration liquid inlet pipeline 7 is 200-400 mm higher than the position of the sight glass 2 in the first regeneration tower, so as to ensure that the maximum amount of resin can be regenerated.

[0038] As an embodiment of the present invention, the first central mirror camera 4 is used to monitor the resin interface within the visible range of the central mirror 2 in the first regeneration tower; the second central mirror camera 5 is used to monitor the resin interface within the visible range of the central mirror 3 in the second regeneration tower.

[0039] As an embodiment of the present invention, the height of the sight glass 3 in the second regeneration tower satisfies the observation of the cation resin interface at a ratio of cation resin: anion resin = 3:1 and the anion resin interface at a ratio of cation resin: anion resin = 1:1.

[0040] As an embodiment of the present invention, the height of the sight glass 2 in the first regeneration tower satisfies the observation of the cation resin interface at a ratio of cation resin: anion resin = 1:1 and the cation resin interface at a ratio of cation resin: anion resin = 3:1.

[0041] As an embodiment of the present invention, the regeneration tower scale 10 is disposed on the outer wall of the regeneration tower 1 for reading the height corresponding to the resin interface.

[0042] The method for adjusting the proportion of the adaptive resin of the present invention comprises the following steps:

[0043] When the resin water production is low, the ratio of cation and anion resins is adjusted to 3:2-3:1, and the cation resin interface is adjusted from the middle of the viewing mirror 2 in the first regeneration tower to the middle-upper edge of the viewing mirror 3 in the second regeneration tower. The anion resin interface is adjusted from the middle of the viewing mirror 3 in the second regeneration tower to the middle-lower edge of the viewing mirror 2 in the first regeneration tower. The resin interface is remotely observed through the first viewing mirror camera 4 and the second viewing mirror camera 5.

[0044] Establish the required acid and alkali dosage model, and calculate the required acid and alkali height of resin at different positions through the required acid and alkali dosage model to ensure that the resin acid and alkali consumption meets 100kg / m 3 R~200kg / m 3 R, avoid the increase of acid and alkali consumption and self-used water consumption, and increase the cost of resin regeneration.

[0045] Open the regeneration liquid inlet valve 6, and the regeneration liquid enters the regeneration tower 1 through the regeneration liquid inlet pipe 7 to regenerate the resin. The regeneration liquid fully contacts the failed resin to fully regenerate the failed resin, ensuring that the resin interface is within the visible range of the sight glass after the resin is regenerated and expanded, and the regeneration liquid is 200 to 400 mm higher than the resin interface.

[0046] As an embodiment of the present invention, the formula for establishing the acid and alkali dosage model is:

[0047] Acid and alkali consumption = 3.14 × (R 计量箱 2 ×H 计量箱 ]×1.14×1000×0.31 / 3.14×R 再生塔 2 ×H 树脂 (1)

[0048] Among them, R 计量箱 is the radius of the metering box, H 计量箱 is the height of acid and alkali dosage, R 再生塔 is the height of regeneration tower 1, H 树脂 is the resin interface height.

[0049] The working principle of the present invention is:

[0050] In the middle of the regeneration tower 1, different first regeneration tower mirrors 2 and second regeneration tower mirrors 3 are set at different positions according to the ratio of cation and anion resins of 1:1 to 3:1. The regeneration liquid inlet pipeline 7 is higher than the second regeneration tower mirror 3200 to 400 mm to ensure that the maximum amount of resin can be regenerated. Before regeneration, the position of the resin interface is observed by a remote camera combined with a regeneration tower scale 10, and the acid and alkali consumption is calculated by the automatic calculation model of the regeneration acid and alkali amount. The acid and alkali consumption meets 100 kg / m 3 R~200kg / m 3R, avoid the increase of acid and alkali consumption and self-used water consumption, which will increase the cost of resin regeneration.

[0051] Implementation Case 1

[0052] Taking the fine treatment of a 2×330MW direct air-cooled unit as an example, the original design was a bare powder system, and no fine treatment high-mix system was designed. The effects before and after the transformation are compared and explained.

[0053] After the transformation, a fine treatment regeneration device that can adapt to the resin ratio adjustment was used, including a regeneration tower 1, a first regeneration tower central mirror 2, a second regeneration tower central mirror 3, a first central mirror camera 4, a second central mirror camera 5, a regeneration liquid inlet valve 6, a regeneration liquid inlet pipeline 7, a resin layer 8, a water cushion layer 9, and a regeneration tower scale 10. The regeneration liquid inlet port on the side wall of the regeneration tower 1 is connected to the regeneration liquid inlet pipeline 7 through the regeneration liquid inlet valve 6.

[0054] As an embodiment of the present invention, the regeneration liquid inlet pipeline 7 is 200-400 mm higher than the position of the sight glass 3 in the second regeneration tower, ensuring that the maximum amount of resin can be regenerated.

[0055] As an embodiment of the present invention, the first central mirror camera 4 is used to monitor the resin interface within the visible range of the central mirror 2 in the first regeneration tower; the second central mirror camera 5 is used to monitor the resin interface within the visible range of the central mirror 3 in the second regeneration tower.

[0056] As an embodiment of the present invention, the height of the sight glass 3 in the second regeneration tower is sufficient to observe the cation resin interface at a ratio of cation resin: anion resin = 3:1 and the anion resin interface at a ratio of cation resin: anion resin = 1:1.

[0057] As an embodiment of the present invention, the height of the sight glass 2 in the first regeneration tower is sufficient to observe the cation resin interface at a ratio of cation resin: anion resin = 1:1 and the cation resin interface at a ratio of cation resin: anion resin = 3:1.

[0058] As an embodiment of the present invention, the regeneration tower scale 10 is used to read the height corresponding to the resin interface.

[0059] Specifically, a fine treatment regeneration device adapted to the resin ratio adjustment is used, comprising the following steps:

[0060] Adjust the ratio of cation resin to anion resin to about 2.4:1, and the total amount of resin is about 4.6m 3 , of which the amount of cationic resin is about 3.27m 3 , the amount of anion resin is about 1.33m 3The positive resin interface is located at the middle upper edge of the second regeneration tower mirror 3, and the negative resin interface is located at the middle lower edge of the first regeneration tower mirror 2. The resin interface is remotely observed by the first mirror camera 4 and the second mirror camera 5.

[0061] Calculate the required acid and alkali dosage according to the resin height to ensure that the resin acid and alkali consumption meets 100kg / m 3 R~200kg / m 3 R, avoid the increase of acid and alkali consumption and self-used water consumption, and increase the cost of resin regeneration.

[0062] Open the regeneration liquid inlet valve 6, and the regeneration liquid enters the regeneration tower 1 through the regeneration liquid inlet pipe 7 to regenerate the resin. The regeneration liquid is in full contact with the failed resin to fully regenerate it, ensuring that the resin interface is within the visible range of the sight glass after the resin is regenerated and expanded, and at the same time, the regeneration liquid inlet is 200 to 400 mm higher than the resin interface.

[0063] After the regenerated resin is put into operation, the water production during the high-mix operation period is about 140,000 m 3 The economic benefits are significant, and the investment recovery period is about 2.0 years.

[0064] Implementation Case 2

[0065] Taking the fine treatment of a 2×600MW subcritical wet cooling unit as an example, the original system was not designed with a fine treatment system, and the effects before and after the transformation were compared.

[0066] The specific process is:

[0067] Adjust the ratio of cation resin to anion resin to about 2.5:1, and the total amount of resin is about 7.80m 3 , of which the amount of cationic resin is about 5.57m 3 , the amount of anion resin is about 2.23m 3 The positive resin interface is located at the middle upper edge of the second regeneration tower mirror 3, and the negative resin interface is located at the middle lower edge of the first regeneration tower mirror 2. The resin interface is remotely observed by the first mirror camera 4 and the second mirror camera 5.

[0068] Calculate the acid and alkali amount required for resin regeneration by the resin height to ensure that the resin acid and alkali consumption meets 100kg / m 3 R~200kg / m 3 R, avoid the increase of acid and alkali consumption and self-used water consumption, and increase the cost of resin regeneration.

[0069] Open the regeneration liquid inlet valve 6, and the regeneration liquid enters the regeneration tower 1 through the regeneration liquid inlet pipe 7 to regenerate the resin. The regeneration liquid is in full contact with the failed resin to fully regenerate it, ensuring that the resin interface is within the visible range of the sight glass after the resin is regenerated and expanded, and at the same time, the regeneration liquid inlet is 200 to 400 mm higher than the resin interface.

[0070] After the regenerated resin is put into operation, the water production during the high-mix operation period is about 200,000 m 3 The economic benefits are significant, and the investment payback period is about 2.4 years.

[0071] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and disclosure of the invention. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0072] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0073] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A fine treatment regeneration system adapted to resin ratio adjustment, characterized in that: It comprises a regeneration tower (1), a regeneration liquid inlet valve (6), a regeneration liquid inlet pipeline (7), a first central mirror camera (4) and a second central mirror camera (5); The regeneration liquid inlet on the side wall of the regeneration tower (1) is connected to the regeneration liquid inlet pipeline (7) via the regeneration liquid inlet valve (6). A first regeneration tower central mirror (2) and a second regeneration tower central mirror (3) are arranged in the middle of the regeneration tower (1), wherein a first central mirror camera (4) faces the first regeneration tower central mirror (2), and a second central mirror camera (5) faces the second regeneration tower central mirror (3).

2. The fine treatment regeneration system adapted to resin ratio adjustment according to claim 1 is characterized in that: The regeneration liquid inlet pipeline (7) is 200 to 400 mm higher than the position of the sight glass (2) in the first regeneration tower.

3. The fine treatment regeneration system adapted to resin ratio adjustment according to claim 1, characterized in that: The first central mirror camera (4) is used to monitor the resin interface within the visible range of the central mirror (2) in the first regeneration tower; and the second central mirror camera (5) is used to monitor the resin interface within the visible range of the central mirror (3) in the second regeneration tower.

4. The fine treatment regeneration system adapted to resin ratio adjustment according to claim 1, characterized in that: The height of the sight glass (3) in the second regeneration tower is sufficient to observe the cation resin interface when the ratio of cation resin: anion resin is 3:1 and the anion resin interface when the ratio of cation resin: anion resin is 1:

1.

5. The fine treatment regeneration system adapted to resin ratio adjustment according to claim 1, characterized in that: The height of the sight glass (2) in the first regeneration tower is sufficient to observe the cation resin interface when the ratio of cation resin: anion resin is 1:1 and the cation resin interface when the ratio of cation resin: anion resin is 3:

1.

6. The fine treatment regeneration system adapted to resin ratio adjustment according to claim 1, characterized in that: It also comprises a regeneration tower scale (10), which is arranged on the outer wall of the regeneration tower (1).

7. A fine treatment regeneration method adapted to resin ratio adjustment, characterized in that: The fine treatment regeneration system adapted to resin ratio adjustment according to claim 1 comprises the following steps: When the amount of water produced by the resin is low, the ratio of the cation resin to the anion resin is adjusted to 3:2 to 3:1, the cation resin interface is adjusted from the middle of the first regeneration tower central mirror (2) to the middle upper edge of the second regeneration tower central mirror (3), and the anion resin interface is adjusted from the middle of the second regeneration tower central mirror (3) to the middle lower edge of the first regeneration tower central mirror (2), and the resin interface is remotely observed through the first central mirror camera (4) and the second central mirror camera (5); The acid and alkali height required for the resin at different positions is calculated through the required acid and alkali dosage model to ensure that the resin acid and alkali consumption meets 100kg / m 3 R~200kg / m 3 R; The regeneration liquid inlet valve (6) is opened, and the regeneration liquid enters the regeneration tower (1) through the regeneration liquid inlet pipe (7) to regenerate the resin. The regeneration liquid is in full contact with the failed resin, so that the failed resin is fully regenerated, ensuring that the resin interface is within the visible range of the sight glass after the resin is regenerated and expanded, and at the same time, the regeneration liquid is 200 to 400 mm higher than the resin interface.

8. The fine treatment regeneration method adapted to resin ratio adjustment according to claim 7, characterized in that: The formula for establishing the acid-base dosage model is: Acid and alkali consumption = 3.14 × (R 计量箱 2 ×H 计量箱 ]×1.14×1000×0.31 / 3.14×R 再生塔 2 ×H 树脂 (1) Among them, R 计量箱 is the radius of the metering box, H 计量箱 is the height of acid and alkali dosage, R 再生塔 is the height of the regeneration tower (1), H 树脂 is the resin interface height.

9. The fine treatment regeneration method adapted to resin ratio adjustment according to claim 7, characterized in that: The height of the sight glass (3) in the second regeneration tower is sufficient to observe the cation resin interface when the ratio of cation resin: anion resin is 3:1 and the anion resin interface when the ratio of cation resin: anion resin is 1:

1.

10. The fine treatment regeneration method adapted to resin ratio adjustment according to claim 7, characterized in that: The height of the sight glass (2) in the first regeneration tower is sufficient to observe the cation resin interface when the ratio of cation resin: anion resin is 1:1 and the cation resin interface when the ratio of cation resin: anion resin is 3:1.

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