CN116371480A - Regeneration method for desalted water system - Google Patents
Regeneration method for desalted water system Download PDFInfo
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- CN116371480A CN116371480A CN202310377021.4A CN202310377021A CN116371480A CN 116371480 A CN116371480 A CN 116371480A CN 202310377021 A CN202310377021 A CN 202310377021A CN 116371480 A CN116371480 A CN 116371480A
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- 238000011069 regeneration method Methods 0.000 title claims abstract description 95
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 239000007788 liquid Substances 0.000 claims abstract description 259
- 238000005406 washing Methods 0.000 claims abstract description 99
- 230000008929 regeneration Effects 0.000 claims abstract description 76
- 238000004140 cleaning Methods 0.000 claims abstract description 26
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 230000001172 regenerating effect Effects 0.000 claims abstract description 3
- 239000011347 resin Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 8
- 238000011001 backwashing Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000004904 shortening Methods 0.000 abstract 1
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- 239000003957 anion exchange resin Substances 0.000 description 2
- 239000003729 cation exchange resin Substances 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
-
- 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
-
- 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
-
- 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
- C02F2001/422—Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
-
- 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
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
-
- 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
- C02F2303/16—Regeneration of sorbents, filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- 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)
- Water Treatment By Sorption (AREA)
Abstract
The invention provides a regeneration method for a desalted water system, which comprises the following steps: falling the bed, closing the inlet and outlet of the floating bed, and naturally falling the bed by utilizing the gravity of the bed layer; the method comprises the steps of backwashing, namely opening a backwashing liquid inlet valve and a backwashing liquid outlet valve, introducing cleaning water, obtaining the flow speed of the cleaning water, adjusting the backwashing liquid inlet valve and the backwashing liquid outlet valve according to the flow speed, and closing the backwashing liquid inlet valve and the backwashing liquid outlet valve after backwashing is completed; regenerating and replacing, namely opening a replacement liquid inlet valve to feed the regenerated liquid, simultaneously opening a replacement liquid discharge valve to obtain the concentration of the regenerated liquid, adjusting the replacement time of the regenerated liquid according to the concentration of the regenerated liquid, and closing the replacement liquid inlet valve and the replacement liquid discharge valve after the replacement is completed; and (3) forward washing, namely opening a forward washing liquid inlet valve and a forward washing liquid outlet valve, and adjusting the state of the forward washing liquid outlet valve according to the adjusted replacement time. The invention controls the consumption of the regeneration liquid, avoids the resource waste, shortens the regeneration operation time of the floating bed, is beneficial to shortening the production period and reducing the production cost.
Description
Technical Field
The invention relates to the technical field of boiler water treatment, in particular to a regeneration method for a desalted water system.
Background
The desalted water is mainly used as boiler water, and the quality of the desalted water directly influences the normal operation of the boiler and the steam turbine. Currently, ion exchange is the most widely used desalination method. I.e. after the raw water sequentially passes through the cation bed filled with the cation exchange resin and the anion bed filled with the anion exchange resin, harmful ions in the water, such as: ca (Ca) 2+ 、Mg 2+ 、Cl - 、SO4 2- And the like can be mostly removed, thereby achieving the purpose of desalting. However, in the working process, the resin of the positive bed and the negative bed can be gradually adsorbed and saturated, and the resin can lose the desalting capability due to the pollution of organic matters, microorganisms, colloid and other components in raw water. In this case, the resins need to be regenerated separately.
However, in the current resin regeneration technology, a saturated replacement mode is generally adopted, and the regeneration liquid and the raw water which are higher than the required amount are utilized to regenerate the floating bed, so that the production cost is increased, the regeneration time is prolonged, the resource waste is caused, and the production period cannot be ensured.
Therefore, a regeneration method for a demineralized water system is needed to solve the problems of resource waste, long regeneration time and high cost in the current floating bed regeneration technology.
Disclosure of Invention
In view of the above, the invention provides a regeneration method for a demineralized water system, which aims to solve the problems of resource waste, long regeneration time and high cost in the current floating bed regeneration technology.
The invention provides a regeneration method for a desalted water system, which comprises the following steps:
falling the bed, closing the inlet and outlet of the floating bed, and naturally falling the bed by utilizing the gravity of the bed layer;
opening a backwash liquid inlet valve and a backwash liquid outlet valve, introducing cleaning water, obtaining the flow speed of the cleaning water, adjusting the backwash liquid inlet valve and the backwash liquid outlet valve according to the flow speed, and closing the backwash liquid inlet valve and the backwash liquid outlet valve after backwash is completed;
regenerating and replacing, namely opening a replacement liquid inlet valve to feed the regenerated liquid, simultaneously opening a replacement liquid discharge valve to obtain the concentration of the regenerated liquid, adjusting the replacement time of the regenerated liquid according to the concentration of the regenerated liquid, and closing the replacement liquid inlet valve and the replacement liquid discharge valve after the replacement is completed;
and (3) forward washing, namely opening a forward washing liquid inlet valve and a forward washing liquid outlet valve, and adjusting the state of the forward washing liquid outlet valve according to the adjusted replacement time.
Further, the step of obtaining the flow rate of the cleaning water, and adjusting the backwash liquid inlet valve and the backwash liquid outlet valve according to the flow rate, includes:
presetting a first preset flow rate L1, a second preset flow rate L2, a third preset flow rate L3 and a fourth preset flow rate L4, wherein L1 is more than L2 and less than L3 and less than L4;
presetting a first preset valve opening K1, a second preset valve opening K2, a third preset valve opening K3 and a fourth preset valve opening K4, wherein K1 is more than K2 and less than K3 and less than K4;
and acquiring the flow speed delta L of the cleaning water, and selecting the opening of a valve as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve according to the relation between the flow speed delta L and each preset flow speed.
Further, the step of obtaining the flow speed Δl of the cleaning water, selecting the opening of the valve as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve according to the magnitude relation between the flow speed Δl and each preset flow speed, and includes:
when L1 is less than or equal to delta L and less than L2, selecting the opening K1 of the first preset valve as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve;
when L2 is more than or equal to delta L and less than L3, selecting the opening K2 of the first preset valve as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve;
when L3 is less than or equal to delta L and less than L4, selecting the opening K3 of the first preset valve as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve;
when L4 is less than or equal to DeltaL, the opening K4 of the first preset valve is selected as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve.
Further, after selecting the i-th preset valve opening Ki as the opening of the backwash feed-in valve and the backwash drain valve, i=1, 2,3,4, and adjusting the backwash feed-in valve and the backwash drain valve according to the flow speed, the method further includes:
presetting a first preset content H1, a second preset content H2, a third preset content H3 and a fourth preset content H4, wherein H1 is more than H2 and less than H3 and less than H4;
presetting a first preset opening adjustment coefficient A1, a second preset opening adjustment coefficient A2, a third preset opening adjustment coefficient A3 and a fourth preset opening adjustment coefficient A4, wherein A1 is more than A2 and less than A3 and less than A4;
and acquiring the content delta H of resin particles in the water discharged by the liquid discharge valve, selecting a preset opening adjustment coefficient according to the size relation between the content delta H and each preset content, and adjusting the opening Ki of the backwash liquid inlet valve and the backwash liquid discharge valve.
Further, selecting a preset opening adjustment coefficient according to the magnitude relation between the content Δh and each preset content to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, including:
when H1 is less than or equal to delta H and less than H2, selecting the first preset opening adjustment coefficient A1 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening Ki;
when H2 is less than or equal to delta H and less than H3, selecting the second preset opening adjustment coefficient A2 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening Ki;
when H3 is less than or equal to delta H < H4, selecting the third preset opening adjustment coefficient A3 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening Ki;
when H4 is less than or equal to delta H, selecting the fourth preset opening adjustment coefficient A4 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening Ki.
Further, the step of obtaining the concentration of the regeneration liquid and adjusting the replacement time of the regeneration liquid according to the concentration of the regeneration liquid includes:
presetting a first preset concentration N1, a second preset concentration N2, a third preset concentration N3 and a fourth preset concentration N4, wherein N1 is more than N2 and less than N3 and less than N4;
presetting a first preset replacement time T1, a second preset replacement time T2, a third preset replacement time T3 and a fourth preset replacement time T4, wherein T1 is more than T2 and less than T3 and less than T4;
and obtaining the concentration delta N of the regeneration liquid, and determining the replacement time of the regeneration liquid according to the magnitude relation between the concentration delta N of the regeneration liquid and each preset concentration.
Further, the determining the replacement time of the regeneration liquid according to the magnitude relation between the concentration Δn of the regeneration liquid and each preset concentration includes:
when N1 is less than or equal to delta N and less than N2, selecting the fourth preset replacement time T4 as the replacement time of the regeneration liquid;
when N2 is less than or equal to delta N and less than N3, selecting the third preset replacement time T3 as the replacement time of the regeneration liquid;
when N3 is less than or equal to delta N and less than N4, selecting the second preset replacement time T2 as the replacement time of the regeneration liquid;
when N4 is less than or equal to delta N, selecting the first preset replacement time T1 as the replacement time of the regeneration liquid.
Further, after selecting the i-th preset replacement time Ti as the replacement time of the regeneration liquid, i=1, 2,3,4, the method for adjusting the replacement time of the regeneration liquid according to the concentration of the regeneration liquid further includes:
presetting a first preset temperature W1, a second preset temperature W2, a third preset temperature W3 and a fourth preset temperature W4, wherein W1 is more than W2 and less than W3 and less than W4;
presetting a first preset time adjustment coefficient B1, a second preset time adjustment coefficient B2, a third preset time adjustment coefficient B3 and a fourth preset time adjustment coefficient B4, wherein B1 is more than B2 and less than B3 and less than B4;
acquiring the internal temperature delta W of the floating bed, and selecting a preset time adjustment coefficient to adjust the replacement time Ti of the regenerated liquid according to the magnitude relation between the temperature delta W and each preset temperature;
when W1 is less than or equal to DeltaW and less than W2, selecting the fourth preset time adjustment coefficient B4 to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time as Ti x B4;
when W2 is less than or equal to DeltaW and less than W3, selecting the third preset time adjustment coefficient B3 to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time as Ti x B3;
when W3 is less than or equal to DeltaW and less than W4, selecting the second preset time adjustment coefficient B2 to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time as Ti x B2;
when W4 is less than or equal to DeltaW, selecting the first preset time adjustment coefficient B1 to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time as Ti.B1.
Further, after selecting the i-th preset time adjustment coefficient Bi to adjust the replacement time Ti of the regeneration liquid and obtaining the adjusted replacement time ti×bi, i=1, 2,3,4, and adjusting the state of the positive washing drain valve according to the adjusted replacement time, including:
presetting a first time threshold Y1, a second time threshold Y2 and a third time threshold Y3, wherein Y1 is more than Y2 and less than Y3;
presetting a first positive washing time Z1, a second positive washing time Z2, a third positive washing time Z3 and a fourth positive washing time Z4, wherein Z1 is more than Z2 and less than Z3 and less than Z4;
adjusting the state of the positive washing liquid discharge valve according to the size relation between the adjusted replacement time Ti and Bi and each time threshold;
when Y1 is less than or equal to Ti and Bi is less than Y2, opening a first positive washing liquid discharge valve, taking the first positive washing time Z1 as the opening time of the first positive washing liquid discharge valve, and closing the first positive washing liquid discharge valve after the time is over;
when Y2 is less than or equal to Ti and Bi is less than Y3, opening a first positive washing liquid discharge valve, taking the second positive washing time Z2 as the opening time of the first positive washing liquid discharge valve, and closing the first positive washing liquid discharge valve after the opening time is finished.
Further, the adjusting the state of the positive washing drain valve according to the adjusted replacement time further includes:
after a first forward-washing drain valve is closed, acquiring a water quality report of water discharged by the first forward-washing drain valve, and adjusting the state of the forward-washing drain valve according to the water quality report;
when the water quality report is qualified, a second positive washing liquid discharge valve is opened, the third positive washing liquid discharge valve Z3 is used as the opening time of the second positive washing liquid discharge valve, and the second positive washing liquid discharge valve and the positive washing liquid inlet valve are closed after the time is over;
when the water quality report is unqualified, a second positive washing liquid discharge valve is opened, the fourth positive washing time Z4 is used as the opening time of the second positive washing liquid discharge valve, and the second positive washing liquid discharge valve and the positive washing liquid inlet valve are closed after the time is over.
Compared with the prior art, the invention has the beneficial effects that: the raw water consumption is controlled by adjusting the drain valve according to the flowing speed of the cleaning water, the replacement time is adjusted according to the concentration of the regenerated liquid, the state of the drain valve during normal cleaning is adjusted according to the adjusted replacement time, the replacement and regeneration effects are ensured, and the regenerated liquid consumption is controlled. The condition of excessive use of the regeneration liquid and the raw water is avoided, the resource waste is avoided, the regeneration operation time of the floating bed is shortened, the production period is shortened, and the production cost is reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a flow chart of a regeneration method for a desalinated water system according to an embodiment of the present invention
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1, the present application provides a regeneration method for a desalination system, comprising the steps of:
step S100, falling into the bed: closing the inlet and outlet of the floating bed, and naturally falling to the bed by utilizing the gravity of the bed layer.
Step S200, backwashing: opening a backwash liquid inlet valve and a backwash liquid discharge valve, introducing cleaning water, obtaining the flow speed of the cleaning water, adjusting the backwash liquid inlet valve and the backwash liquid discharge valve according to the flow speed, and closing the backwash liquid inlet valve and the backwash liquid discharge valve after backwash is completed.
Step S300, regeneration replacement: and opening the replacement liquid inlet valve to introduce the regeneration liquid, simultaneously opening the replacement liquid discharge valve to obtain the concentration of the regeneration liquid, adjusting the replacement time of the regeneration liquid according to the concentration of the regeneration liquid, and closing the replacement liquid inlet valve and the replacement liquid discharge valve after the replacement is completed.
Step S400, forward washing: and opening the forward washing liquid inlet valve and the forward washing liquid outlet valve, and adjusting the state of the forward washing liquid outlet valve according to the adjusted replacement time.
It is understood that the floating bed in the present application includes a female bed and a male bed, and the female bed and the male bed are the same in the above operation steps, and the water source used is purified water or desalted water, and does not contain impurities such as sediment, suspended matters and the like. The backwash liquid inlet valve and backwash liquid discharge valve are adjusted according to the flow speed of the cleaning water, which is beneficial to controlling the consumption of the cleaning water and realizing the purpose of saving resources on the premise of realizing full cleaning.
In some embodiments of the present application, step S200 obtains a flow rate of the cleaning water, adjusts the backwash feed valve and backwash drain valve according to the flow rate, and includes: the method comprises the steps of presetting a first preset flow rate L1, a second preset flow rate L2, a third preset flow rate L3 and a fourth preset flow rate L4, wherein L1 is more than L2 and less than L3 and less than L4. The first preset valve opening K1, the second preset valve opening K2, the third preset valve opening K3 and the fourth preset valve opening K4 are preset, and K1 is more than K2 and less than K3 and less than K4. And obtaining the flow speed delta L of the cleaning water, and selecting the opening of a valve as the opening of a backwash liquid inlet valve and the opening of a backwash liquid outlet valve according to the magnitude relation between the flow speed delta L and each preset flow speed.
Specifically, when L1 is less than or equal to DeltaL and less than L2, the opening K1 of the first preset valve is selected as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve. When L2 is less than or equal to DeltaL and less than L3, the opening K2 of the first preset valve is selected as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve. When L3 is less than or equal to DeltaL and less than L4, selecting the opening K3 of the first preset valve as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve. When L4 is less than or equal to DeltaL, the opening K4 of the first preset valve is selected as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve.
It will be appreciated that in order to keep the resin bed undisturbed, only backwash of the fat-liquoring layer above the intermediate drainage is carried out before each regeneration, with backwash water entering the exchanger from the intermediate drain. The water is discharged from the top, the water flow speed is generally about 10-15 m/h, and the water discharged from the water outlet is moderate without escaping resin particles. According to the actual cleaning water flow speed control valve aperture, can guarantee to form fixed pressure in the container, effectively guarantee rivers cleaning efficiency.
In some embodiments of the present application, step S200, after selecting the i-th preset valve opening Ki as the opening of the backwash feed valve and the backwash drain valve, i=1, 2,3,4, adjusts the backwash feed valve and the backwash drain valve according to the flow speed, further includes: the first preset content H1, the second preset content H2, the third preset content H3 and the fourth preset content H4 are preset, and H1 is more than H2 and less than H3 and less than H4. The first preset opening adjustment coefficient A1, the second preset opening adjustment coefficient A2, the third preset opening adjustment coefficient A3 and the fourth preset opening adjustment coefficient A4 are preset, and A1 is more than A2 and less than A3 and less than A4. And obtaining the content delta H of resin particles in water discharged by the liquid discharge valve, selecting a preset opening adjustment coefficient according to the size relation between the content delta H and each preset content, and adjusting the opening Ki of the backwash liquid inlet valve and the backwash liquid discharge valve.
Specifically, when H1 is less than or equal to Δh < H2, selecting a first preset opening adjustment coefficient A1 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening ki×a1. When H2 is less than or equal to delta H and less than H3, selecting a second preset opening adjustment coefficient A2 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening Ki. When H3 is less than or equal to delta H and less than H4, selecting a third preset opening adjustment coefficient A3 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening Ki. When H4 is less than or equal to delta H, a fourth preset opening adjustment coefficient A4 is selected to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and the adjusted opening Ki is obtained.
It can be understood that when the content delta H of the resin particles in the discharged water is smaller than H1, the backwashing operation is completed, the backwashing water inlet valve and the backwashing water outlet valve are related, the opening degree of the valve is adjusted according to the content of the resin particles in the discharged water, the thorough backwashing can be ensured, the resin particles can be effectively removed, and meanwhile, the backwashing water inlet valve and the backwashing water outlet valve are timely closed after the content of the particles in the discharged water is monitored in real time and meets the requirement, so that the water consumption in the backwashing operation is reduced.
In some embodiments of the present application, step S300 obtains a concentration of the regeneration liquid, adjusts a regeneration liquid replacement time according to the concentration of the regeneration liquid, and includes: the first preset concentration N1, the second preset concentration N2, the third preset concentration N3 and the fourth preset concentration N4 are preset, and N1 is more than N2 and less than N3 and less than N4. The method comprises the steps of presetting a first preset replacement time T1, a second preset replacement time T2, a third preset replacement time T3 and a fourth preset replacement time T4, wherein T1 is more than T2 and less than T3 and less than T4. And obtaining the concentration delta N of the regenerated liquid, and determining the regenerated liquid replacement time according to the magnitude relation between the concentration delta N of the regenerated liquid and each preset concentration.
Specifically, when N1 is less than or equal to DeltaN < N2, the fourth preset replacement time T4 is selected as the replacement time of the regeneration liquid. When N2 is less than or equal to delta N and less than N3, selecting a third preset replacement time T3 as the replacement time of the regeneration liquid. When N3 is less than or equal to delta N and less than N4, selecting a second preset replacement time T2 as the replacement time of the regeneration liquid. When N4 is less than or equal to delta N, selecting a first preset replacement time T1 as the replacement time of the regeneration liquid.
It will be appreciated that in the displacement regeneration operation, the flow rate of the regeneration liquid is about 5 m/hr, with a concentration of 2-3%. Wherein acid is fed in the replacement regeneration operation of the positive bed, and alkali is fed in the regeneration operation of the negative bed. When the concentration of the real-time regeneration liquid is slightly higher, the replacement regeneration time can be shortened, and similarly, the replacement regeneration time can be prolonged. The regeneration replacement time is adjusted according to the actual concentration, so that the replacement regeneration effect is guaranteed, the replacement regeneration time can be effectively controlled, and the waste of the regeneration liquid is reduced. Is beneficial to saving the regeneration cost.
In some embodiments of the present application, step S300, after selecting the i-th preset replacement time Ti as the replacement time of the regeneration liquid, i=1, 2,3,4, adjusts the replacement time of the regeneration liquid according to the concentration of the regeneration liquid, and further includes: the first preset temperature W1, the second preset temperature W2, the third preset temperature W3 and the fourth preset temperature W4 are preset, and W1 is more than W2 and less than W3 and less than W4. The first preset time adjustment coefficient B1, the second preset time adjustment coefficient B2, the third preset time adjustment coefficient B3 and the fourth preset time adjustment coefficient B4 are preset, and B1 is more than B2 and less than B3 and less than B4. Obtaining the internal temperature delta W of the floating bed, and selecting a preset time adjustment coefficient to adjust the replacement time Ti of the regenerated liquid according to the magnitude relation between the temperature delta W and each preset temperature. When W1 is less than or equal to DeltaW and less than W2, a fourth preset time adjustment coefficient B4 is selected to adjust the replacement time Ti of the regenerated liquid, and the replacement time after adjustment is obtained to be Ti.B4. When W2 is less than or equal to DeltaW and less than W3, selecting a third preset time adjustment coefficient B3 to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time Ti which is equal to Ti.B3. When W3 is less than or equal to DeltaW and less than W4, selecting a second preset time adjustment coefficient B2 to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time Ti which is equal to Ti.B2. When W4 is less than or equal to DeltaW, a first preset time adjustment coefficient B1 is selected to adjust the replacement time Ti of the regenerated liquid, and the adjusted replacement time Ti is obtained as Ti.B1.
It will be appreciated that during ion exchange, cations in the water, such as Na + 、Mg 2+ 、Fe 3+ Ca on iso-and cation-exchange resin 2+ 、K + H of + Exchange is carried out, cations in the water are transferred to the resin, and H on the resin + Exchange into water. Anions in water, e.g. Cl - 、HCO3 - OH on Iso-anion exchange resin - Exchange is carried out, anions in the water are transferred to the resin, and OH on the resin - Exchange into water. And H is + With OH - Combines to produce water, thereby achieving the aim of desalination. After the resin is used for a period of time, the resin is subjected to regeneration treatment, namely, the ion exchange reaction is carried out in the opposite direction by using chemicals, so that the functional groups of the resin are restored to the original state for reuse. Chemical reactions are generally more significantly affected by temperature, and when the temperature is higher, the reaction is accelerated, and when the temperature is lower, the reaction is delayed. Therefore, the replacement time is adjusted according to the temperature, which is beneficial to ensuring the replacement and regeneration effects and reducing the influence of the temperature on the regeneration of the floating bed.
In some embodiments of the present application, step S400, adjusting the state of the positive wash drain valve according to the adjusted replacement time, includes: and (3) selecting an ith preset time adjustment coefficient Bi to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time Ti which is equal to Bi, wherein i=1, 2,3 and 4. The first time threshold Y1, the second time threshold Y2 and the third time threshold Y3 are preset, and Y1 is smaller than Y2 and smaller than Y3. The first positive washing time Z1, the second positive washing time Z2, the third positive washing time Z3 and the fourth positive washing time Z4 are preset, and Z1 is more than Z2 and less than Z3 and less than Z4. And adjusting the state of the positive washing liquid discharge valve according to the size relation between the adjusted replacement time Ti and Bi and each time threshold. When Y1 is less than or equal to Ti and Bi is less than Y2, the first positive washing liquid discharge valve is opened, the first positive washing time Z1 is taken as the opening time of the first positive washing liquid discharge valve, and the first positive washing liquid discharge valve is closed after the opening time is finished. When Y2 is less than or equal to Ti and Bi is less than Y3, the first positive washing liquid discharge valve is opened, the second positive washing time Z2 is taken as the opening time of the first positive washing liquid discharge valve, and the first positive washing liquid discharge valve is closed after the opening time is finished.
In some embodiments of the present application, step S400 further includes, after closing the first forward-wash drain valve, obtaining a water quality report of water discharged by the first forward-wash drain valve, and adjusting a state of the forward-wash drain valve according to the water quality report. When the water quality report is qualified, the second positive washing liquid discharge valve is opened, the third positive washing time Z3 is taken as the opening time of the second positive washing liquid discharge valve, and the second positive washing liquid discharge valve and the positive washing liquid inlet valve are closed after the time is over. When the water quality report is unqualified, the second positive washing liquid discharge valve is opened, the fourth positive washing time Z4 is taken as the opening time of the second positive washing liquid discharge valve, and the second positive washing liquid discharge valve and the positive washing liquid inlet valve are closed after the time is over.
It can be understood that the water quality requirement of the effluent is Na + Less than 0.5mg/L, the hardness is 0 mu mol/L, and the acidity is the same as that of raw water. And when the water quality requirement is met, the report is qualified. The first positive washing drain valve can be an intermediate drain valve, and the first stage only cleans the grease pressing layer, so that the resin layer bed is kept not messy during cleaning, and the use effect of the floating bed is not influenced. After the grease pressing layer is cleaned up, a second positive washing liquid discharge valve is opened, the positive washing is started in the second stage, the positive washing time is selected according to the adjusted replacement time, the acid or alkali left during replacement and regeneration is favorably fully removed, and the condition that the floating bed has poor use effect due to acid or alkali residues when the consistent positive washing time is adopted in the past is avoided
In the embodiment, the drain valve is adjusted according to the flowing speed of the cleaning water to control the raw water consumption, the replacement time is adjusted according to the concentration of the regenerated liquid, the state of the drain valve during normal cleaning is adjusted according to the adjusted replacement time, the replacement and regeneration effects are ensured, and the regenerated liquid consumption is controlled. The condition of excessive use of the regeneration liquid and the raw water is avoided, the resource waste is avoided, the regeneration operation time of the floating bed is shortened, the production period is shortened, and the production cost is reduced.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flowchart and/or block of the flowchart illustrations and/or block diagrams, and combinations of flowcharts and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (10)
1. A regeneration method for a desalinated water system, comprising:
falling the bed, closing the inlet and outlet of the floating bed, and naturally falling the bed by utilizing the gravity of the bed layer;
opening a backwash liquid inlet valve and a backwash liquid outlet valve, introducing cleaning water, obtaining the flow speed of the cleaning water, adjusting the backwash liquid inlet valve and the backwash liquid outlet valve according to the flow speed, and closing the backwash liquid inlet valve and the backwash liquid outlet valve after backwash is completed;
regenerating and replacing, namely opening a replacement liquid inlet valve to feed the regenerated liquid, simultaneously opening a replacement liquid discharge valve to obtain the concentration of the regenerated liquid, adjusting the replacement time of the regenerated liquid according to the concentration of the regenerated liquid, and closing the replacement liquid inlet valve and the replacement liquid discharge valve after the replacement is completed;
and (3) forward washing, namely opening a forward washing liquid inlet valve and a forward washing liquid outlet valve, and adjusting the state of the forward washing liquid outlet valve according to the adjusted replacement time.
2. The regeneration method for a demineralized water system according to claim 1, wherein the obtaining the flow rate of the cleaning water, adjusting the backwash feed valve and backwash drain valve according to the flow rate, comprises:
presetting a first preset flow rate L1, a second preset flow rate L2, a third preset flow rate L3 and a fourth preset flow rate L4, wherein L1 is more than L2 and less than L3 and less than L4;
presetting a first preset valve opening K1, a second preset valve opening K2, a third preset valve opening K3 and a fourth preset valve opening K4, wherein K1 is more than K2 and less than K3 and less than K4;
and acquiring the flow speed delta L of the cleaning water, and selecting the opening of a valve as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve according to the relation between the flow speed delta L and each preset flow speed.
3. The regeneration method for a demineralized water system according to claim 2, wherein the obtaining the flow velocity Δl of the cleaning water, selecting a valve opening as the openings of the backwash feed valve and backwash drain valve according to the magnitude relation between the flow velocity Δl and each preset flow velocity, includes:
when L1 is less than or equal to delta L and less than L2, selecting the opening K1 of the first preset valve as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve;
when L2 is more than or equal to delta L and less than L3, selecting the opening K2 of the first preset valve as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve;
when L3 is less than or equal to delta L and less than L4, selecting the opening K3 of the first preset valve as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve;
when L4 is less than or equal to DeltaL, the opening K4 of the first preset valve is selected as the opening of the backwash liquid inlet valve and the backwash liquid outlet valve.
4. A regeneration method for a desalinization system according to claim 3, characterized in that, after selecting an i-th preset valve opening Ki as the opening of the backwash feed valve and backwash drain valve, i=1, 2,3,4, the backwash feed valve and backwash drain valve are adjusted according to the flow speed, further comprising:
presetting a first preset content H1, a second preset content H2, a third preset content H3 and a fourth preset content H4, wherein H1 is more than H2 and less than H3 and less than H4;
presetting a first preset opening adjustment coefficient A1, a second preset opening adjustment coefficient A2, a third preset opening adjustment coefficient A3 and a fourth preset opening adjustment coefficient A4, wherein A1 is more than A2 and less than A3 and less than A4;
and acquiring the content delta H of resin particles in the water discharged by the liquid discharge valve, selecting a preset opening adjustment coefficient according to the size relation between the content delta H and each preset content, and adjusting the opening Ki of the backwash liquid inlet valve and the backwash liquid discharge valve.
5. The regeneration method for a demineralized water system according to claim 4, wherein selecting a preset opening adjustment coefficient according to the magnitude relation between the content Δh and each preset content to adjust the opening Ki of the backwash feed valve and the backwash drain valve includes:
when H1 is less than or equal to delta H and less than H2, selecting the first preset opening adjustment coefficient A1 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening Ki;
when H2 is less than or equal to delta H and less than H3, selecting the second preset opening adjustment coefficient A2 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening Ki;
when H3 is less than or equal to delta H < H4, selecting the third preset opening adjustment coefficient A3 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening Ki;
when H4 is less than or equal to delta H, selecting the fourth preset opening adjustment coefficient A4 to adjust the opening Ki of the backwash liquid inlet valve and the backwash liquid outlet valve, and obtaining the adjusted opening Ki.
6. The regeneration method for a demineralized water system according to claim 1, wherein the obtaining the concentration of the regeneration liquid, adjusting the regeneration liquid replacement time according to the concentration of the regeneration liquid, comprises:
presetting a first preset concentration N1, a second preset concentration N2, a third preset concentration N3 and a fourth preset concentration N4, wherein N1 is more than N2 and less than N3 and less than N4;
presetting a first preset replacement time T1, a second preset replacement time T2, a third preset replacement time T3 and a fourth preset replacement time T4, wherein T1 is more than T2 and less than T3 and less than T4;
and obtaining the concentration delta N of the regeneration liquid, and determining the replacement time of the regeneration liquid according to the magnitude relation between the concentration delta N of the regeneration liquid and each preset concentration.
7. The regeneration method for a demineralized water system according to claim 6, wherein said determining the replacement time of the regenerated liquid according to the magnitude relation between the concentration Δn of the regenerated liquid and each preset concentration comprises:
when N1 is less than or equal to delta N and less than N2, selecting the fourth preset replacement time T4 as the replacement time of the regeneration liquid;
when N2 is less than or equal to delta N and less than N3, selecting the third preset replacement time T3 as the replacement time of the regeneration liquid;
when N3 is less than or equal to delta N and less than N4, selecting the second preset replacement time T2 as the replacement time of the regeneration liquid;
when N4 is less than or equal to delta N, selecting the first preset replacement time T1 as the replacement time of the regeneration liquid.
8. The regeneration method for a demineralized water system according to claim 7, wherein i=1, 2,3,4 after selecting an i-th preset replacement time Ti as the regeneration liquid replacement time, the adjusting the regeneration liquid replacement time according to the concentration of the regeneration liquid further comprises:
presetting a first preset temperature W1, a second preset temperature W2, a third preset temperature W3 and a fourth preset temperature W4, wherein W1 is more than W2 and less than W3 and less than W4;
presetting a first preset time adjustment coefficient B1, a second preset time adjustment coefficient B2, a third preset time adjustment coefficient B3 and a fourth preset time adjustment coefficient B4, wherein B1 is more than B2 and less than B3 and less than B4;
acquiring the internal temperature delta W of the floating bed, and selecting a preset time adjustment coefficient to adjust the replacement time Ti of the regenerated liquid according to the magnitude relation between the temperature delta W and each preset temperature;
when W1 is less than or equal to DeltaW and less than W2, selecting the fourth preset time adjustment coefficient B4 to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time as Ti x B4;
when W2 is less than or equal to DeltaW and less than W3, selecting the third preset time adjustment coefficient B3 to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time as Ti x B3;
when W3 is less than or equal to DeltaW and less than W4, selecting the second preset time adjustment coefficient B2 to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time as Ti x B2;
when W4 is less than or equal to DeltaW, selecting the first preset time adjustment coefficient B1 to adjust the replacement time Ti of the regenerated liquid, and obtaining the adjusted replacement time as Ti.B1.
9. The regeneration method for a demineralized water system according to claim 8, wherein after selecting an i-th preset time adjustment coefficient Bi to adjust the replacement time Ti of the regenerated liquid and obtaining an adjusted replacement time Ti x Bi, i=1, 2,3,4, the adjusting the state of the forward washing drain valve according to the adjusted replacement time includes:
presetting a first time threshold Y1, a second time threshold Y2 and a third time threshold Y3, wherein Y1 is more than Y2 and less than Y3;
presetting a first positive washing time Z1, a second positive washing time Z2, a third positive washing time Z3 and a fourth positive washing time Z4, wherein Z1 is more than Z2 and less than Z3 and less than Z4;
adjusting the state of the positive washing liquid discharge valve according to the size relation between the adjusted replacement time Ti and Bi and each time threshold;
when Y1 is less than or equal to Ti and Bi is less than Y2, opening a first positive washing liquid discharge valve, taking the first positive washing time Z1 as the opening time of the first positive washing liquid discharge valve, and closing the first positive washing liquid discharge valve after the time is over;
when Y2 is less than or equal to Ti and Bi is less than Y3, opening a first positive washing liquid discharge valve, taking the second positive washing time Z2 as the opening time of the first positive washing liquid discharge valve, and closing the first positive washing liquid discharge valve after the opening time is finished.
10. The regeneration method for a desalinated water system according to claim 9, wherein said adjusting the state of the forward-wash drain valve according to the adjusted replacement time, further comprises:
after a first forward-washing drain valve is closed, acquiring a water quality report of water discharged by the first forward-washing drain valve, and adjusting the state of the forward-washing drain valve according to the water quality report;
when the water quality report is qualified, a second positive washing liquid discharge valve is opened, the third positive washing liquid discharge valve Z3 is used as the opening time of the second positive washing liquid discharge valve, and the second positive washing liquid discharge valve and the positive washing liquid inlet valve are closed after the time is over;
when the water quality report is unqualified, a second positive washing liquid discharge valve is opened, the fourth positive washing time Z4 is used as the opening time of the second positive washing liquid discharge valve, and the second positive washing liquid discharge valve and the positive washing liquid inlet valve are closed after the time is over.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0957116A (en) * | 1995-08-25 | 1997-03-04 | Ebara Corp | Countercurrent regeneration type ion exchange apparatus and regeneration thereof |
| JP2013220389A (en) * | 2012-04-17 | 2013-10-28 | Japan Organo Co Ltd | Construction support apparatus for water treatment system |
| CN105126938A (en) * | 2015-09-17 | 2015-12-09 | 南通海容热能环境工程有限公司 | Counter flow regenerative cation exchange process |
| CN107362835A (en) * | 2017-08-14 | 2017-11-21 | 中国石油化工股份有限公司 | A kind of one-level DW system demineralized water system negative and positive bed renovation process |
| CN108178240A (en) * | 2018-01-16 | 2018-06-19 | 中国神华能源股份有限公司 | Desalination mixed bed regeneration method |
| CN108320054A (en) * | 2018-01-24 | 2018-07-24 | 江苏国信靖江发电有限公司 | The control method of actified solution, device, equipment and storage medium in desalting system |
| CN109133265A (en) * | 2018-07-18 | 2019-01-04 | 北方华锦化学工业股份有限公司 | Mixed-bed resin regenerant salt method for treating water |
| CN109126907A (en) * | 2018-09-07 | 2019-01-04 | 中条山有色金属集团有限公司 | A method of with one step regeneration reducing cation bed of sulfuric acid |
| CN209791565U (en) * | 2019-04-26 | 2019-12-17 | 安徽建筑大学城市建设学院 | Freely-switched regenerated anion exchanger |
| CN213803032U (en) * | 2020-09-29 | 2021-07-27 | 华能山东发电有限公司白杨河发电厂 | Renewable generator inner cooling water treatment device |
-
2023
- 2023-04-04 CN CN202310377021.4A patent/CN116371480A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0957116A (en) * | 1995-08-25 | 1997-03-04 | Ebara Corp | Countercurrent regeneration type ion exchange apparatus and regeneration thereof |
| JP2013220389A (en) * | 2012-04-17 | 2013-10-28 | Japan Organo Co Ltd | Construction support apparatus for water treatment system |
| CN105126938A (en) * | 2015-09-17 | 2015-12-09 | 南通海容热能环境工程有限公司 | Counter flow regenerative cation exchange process |
| CN107362835A (en) * | 2017-08-14 | 2017-11-21 | 中国石油化工股份有限公司 | A kind of one-level DW system demineralized water system negative and positive bed renovation process |
| CN108178240A (en) * | 2018-01-16 | 2018-06-19 | 中国神华能源股份有限公司 | Desalination mixed bed regeneration method |
| CN108320054A (en) * | 2018-01-24 | 2018-07-24 | 江苏国信靖江发电有限公司 | The control method of actified solution, device, equipment and storage medium in desalting system |
| CN109133265A (en) * | 2018-07-18 | 2019-01-04 | 北方华锦化学工业股份有限公司 | Mixed-bed resin regenerant salt method for treating water |
| CN109126907A (en) * | 2018-09-07 | 2019-01-04 | 中条山有色金属集团有限公司 | A method of with one step regeneration reducing cation bed of sulfuric acid |
| CN209791565U (en) * | 2019-04-26 | 2019-12-17 | 安徽建筑大学城市建设学院 | Freely-switched regenerated anion exchanger |
| CN213803032U (en) * | 2020-09-29 | 2021-07-27 | 华能山东发电有限公司白杨河发电厂 | Renewable generator inner cooling water treatment device |
Non-Patent Citations (5)
| Title |
|---|
| GOPALAKRISHNAN B: "bead settling during cation and anion resin separation", 《SOLVENT EXTRACTION AND ION EXCHANGE》, vol. 30, 30 June 2012 (2012-06-30), pages 405 - 413 * |
| 刘洋: "《锅炉水工系统技术》", 31 August 2020, 哈尔滨工程大学出版社, pages: 84 - 86 * |
| 杨作清: "《钢铁工业水处理实用技术与应用》", 30 June 2015, 冶金工业出版社, pages: 312 * |
| 蔡振国, 李兆星, 徐世刚, 王加伟, 周子健, 史永书: "阳双层床再生中出现的问题及合理再生方式探讨", 工业水处理, no. 06, 2 December 1999 (1999-12-02), pages 41 - 42 * |
| 金熙: "《工业水处理技术问答》", 31 March 1989, 化学工业出版社, pages: 170 - 171 * |
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