CN219031837U - Hydrogen-conductive resin regeneration system - Google Patents

Abstract

The utility model relates to a hydrogen guide resin regeneration system, which relates to the field of water treatment and aims to solve the problem that hydrogen guide resin cannot be effectively regenerated. The hydrogen-conducting resin regeneration system developed by the utility model ensures that the regeneration degree of the hydrogen-conducting resin is kept at a stable level through the ultrapure water system and the stable regeneration system, and the service cycle is prolonged, so that on-site operators can use the hydrogen-conducting resin safely.

Description

Hydrogen-conductive resin regeneration system

Technical Field

The utility model belongs to the field of water treatment, and particularly relates to a hydrogen-conductive resin regeneration system.

Background

The monitoring and control of hydrogen conductivity of feedwater, condensate and steam in a power plant steam system is one of the important means to ensure steam quality and control corrosion and scaling of the boiler steam system.

And (3) allowing the detected water sample to pass through a hydrogen-conducting resin column, wherein cations in the water sample are subjected to ion exchange by the hydrogen-conducting resin, and anions and exchanged hydrogen ions are left in the water sample to measure the conductivity. The hydrogen conductivity of the boiler water vapor system is an important index for measuring the water vapor quality of the thermodynamic system, and can accurately reflect the change of the mass concentration of the anion impurities in the boiler water vapor system. The greater the hydrogen conductivity, the greater the extent of corrosion and hazard of water vapor to the thermal equipment. When the hydrogen conductivity increases, the mass concentration of impurities in the steam is predicted to increase, and if the impurities are precipitated as scale in a high heat load area of the boiler, the scale corrosion is caused. When the mass concentration of acid radical ions, especially chloride ions or certain low molecular organic acid radicals in water vapor is higher, the distribution coefficient of ammonia of an alkalizing agent is far higher than that of the acid radical ions, and the mass concentration of ammonia in the primary condensate is lower in the primary condensation area of a low-pressure cylinder of a steam turbine, so that the pH value of the primary condensate cannot be regulated, and the pH value of the primary condensate is reduced to cause acidic corrosion of a metal matrix. Meanwhile, in the steam initial setting area of the steam turbine, the erosion process is accelerated due to the scouring action of water drops in the steam on parts such as blades and the like. Therefore, it is necessary to analyze the cause of the hydrogen conductivity exceeding the standard of the water vapor system as soon as possible.

The regeneration effect of the hydrogen-conductive resin is particularly important in such an application environment. If the regeneration is incomplete or the effect is poor, the workload of thermal maintenance personnel can be increased, and meanwhile, misjudgment of on-line detection data by operators can be caused, so that the operation condition of the generator set is affected.

However, the regeneration and the use of hydrogen-conducting resin by chemical professionals in the current stage are all traditional manners in the last century, and most of the hydrogen-conducting resin regeneration is used after being soaked in the regeneration liquid and then washed to be qualified by the chemical professionals in the power plant. With the increase of the use times of the hydrogen guide resin, the failure speed of the hydrogen guide resin is gradually increased, and the hydrogen guide resin can be continuously operated only by replacing new hydrogen guide resin after being abandoned, so that the operation and maintenance cost is increased, and the safety and stability of the unit operation are also reduced.

Disclosure of Invention

The utility model aims to solve the problem that hydrogen-conducting resin cannot be effectively regenerated, and provides a hydrogen-conducting resin regeneration system.

The utility model relates to a hydrogen-guided resin regeneration system, which comprises a water inlet valve, a raw water discharge valve, a secondary water inlet valve, a water leakage protector, a pretreatment component, a high-pressure pump, a reverse osmosis membrane component, an EDI membrane stack, an ultrapure water tank, an ultrapure water circulating pump, a purification column, a concentrated water discharge valve, a water production discharge valve, a regeneration module, a regeneration liquid tank, a regeneration metering pump, a flow monitoring monitor, a resin regeneration column, a resin filling port, a backwashing water inlet valve, a bottom discharge valve, a backwashing water discharge valve, a forward washing water inlet valve, a sewage discharge valve, a dosing valve, an electric conductivity online monitor IV, a resin discharge valve, a hydrogen guide column inlet door and a hydrogen guide column outlet door;

the water outlet of the water inlet valve is respectively communicated with the water inlet of the raw water discharge valve and the water inlet of the secondary water inlet valve; the water outlet of the secondary water inlet valve is communicated with the water inlet of the water leakage protector; the water outlet of the water leakage protector is communicated with the water inlet of the pretreatment component; the water outlet of the pretreatment component is communicated with the water inlet of the high-pressure pump; the water outlet of the high-pressure pump is communicated with the water inlet of the permeable membrane component; the water outlet of the permeable membrane component is respectively communicated with the water inlet of the concentrated water discharge valve, the produced water discharge valve and the EDI membrane stack; the water outlet of the EDI membrane stack is respectively communicated with the water inlet of the concentrated water discharge valve, the produced water discharge valve and the ultrapure water tank; the water outlet of the ultrapure water tank is respectively communicated with the water inlet of the regeneration module and the water inlet of the ultrapure water circulating pump; the water outlet of the ultrapure water circulating pump is communicated with the water inlet of the purifying column; the water outlet of the purification column is communicated with the water inlet of the regeneration module;

the regeneration module consists of a regeneration liquid tank, a regeneration metering pump, a flow monitoring monitor and a resin regeneration column; the water inlet of the regeneration liquid tank is respectively communicated with the water outlet of the ultrapure water tank; the water outlet of the regeneration liquid tank is respectively communicated with the water inlet of the resin regeneration column and the water inlet of the sewage disposal valve; a pipeline between the regenerated liquid box and the resin regeneration column is sequentially provided with a regenerated metering pump, a flow monitoring monitor, a dosing valve, a backwashing discharge valve, a forward washing water inlet valve and a hydrogen guide pillar inlet door; the outlet of the resin regeneration column is respectively communicated with a resin discharge valve, a hydrogen guide column outlet door and a bottom discharge valve; the bottom discharge valve is communicated with the sewage discharge valve.

The utility model has the following beneficial effects:

the hydrogen-conducting resin regeneration system developed by the utility model ensures that the regeneration degree of the hydrogen-conducting resin is kept at a stable level through the ultrapure water system and the stable regeneration system, and the service cycle is prolonged, so that on-site operators can use the hydrogen-conducting resin safely. The hydrogen-conducting resin regeneration system developed by the utility model can also reduce the storage time after resin regeneration and reduce external pollution and resin consumption.

Drawings

FIG. 1 is a schematic diagram of a hydrogen-conductive resin regeneration system according to the present utility model.

Detailed Description

The first embodiment is as follows: the hydrogen-conducted resin regeneration system of the present embodiment, which is described with reference to fig. 1, includes a water inlet valve 1, a raw water discharge valve 2, a secondary water inlet valve 3, afilter screen 4, a water leakage protector 5, a pretreatment module 6, a high-pressure pump 7, a reverseosmosis membrane module 8, an EDI membrane stack 9, anultrapure water tank 10, an ultrapure water circulation pump 11, a purification column 12, aconcentrate discharge valve 18, a produced water discharge valve 19, aregeneration module 23, a regenerationliquid tank 24, aregeneration metering pump 25, aflow monitoring monitor 26, a resin regeneration column 27, aresin filling port 28, a backwash water inlet valve 29, a bottom discharge valve 30, a backwashwater discharge valve 31, a forward wash water inlet valve 32, a blowdown valve 33, a dosing valve 34, an electrical conductivity on-line monitor four 35, a resin discharge valve 36, a hydrogen guide column inlet door 37, and a hydrogen guide column outlet door 38;

the water outlet of the water inlet valve 1 is respectively communicated with the water inlet of the raw water discharge valve 2 and the water inlet of the secondary water inlet valve 3; the water outlet of the secondary water inlet valve 3 is communicated with the water inlet of the water leakage protector 5; the water outlet of the water leakage protector 5 is communicated with the water inlet of the pretreatment component 6; the water outlet of the pretreatment component 6 is communicated with the water inlet of the high-pressure pump 7; the water outlet of the high-pressure pump 7 is communicated with the water inlet of thepermeable membrane component 8; the water outlet of thepermeable membrane component 8 is respectively communicated with the water inlets of the concentratedwater discharge valve 18, the produced water discharge valve 19 and the EDI membrane stack 9; the water outlet of the EDI membrane stack 9 is respectively communicated with the water inlet of the concentratedwater discharge valve 18, the produced water discharge valve 19 and theultrapure water tank 10; the water outlet of theultrapure water tank 10 is respectively communicated with the water inlet of theregeneration module 23 and the water inlet of the ultrapure water circulating pump 11; the water outlet of the ultrapure water circulating pump 11 is communicated with the water inlet of the purifying column 12; the water outlet of the purification column 12 is communicated with the water inlet of theregeneration module 23;

theregeneration module 23 consists of a regenerationliquid tank 24 and a resin regeneration column 27; the water inlet of the regenerationliquid tank 24 is respectively communicated with the water outlet of theultrapure water tank 10; the water outlet of the regenerationliquid tank 24 is respectively communicated with the water inlet of the resin regeneration column 27 and the water inlet of the sewage disposal valve 33; aregeneration metering pump 25, aflow monitoring monitor 26, a dosing valve 34, abackwash discharge valve 31, a forward washing water inlet valve 32 and a hydrogen guide pillar inlet door 37 are sequentially arranged on a pipeline between the regenerationliquid tank 24 and the resin regeneration column 27; the outlet of the resin regeneration column 27 is respectively communicated with a resin discharge valve 36, a hydrogen guide column outlet door 38 and a bottom discharge valve 30; the bottom drain valve 30 communicates with a drain valve 33.

The second embodiment is as follows: the present embodiment is described with reference to fig. 1, and one difference between the present embodiment and the specific embodiment is that: the connection pipeline of the secondary water inlet valve 3 and the water leakage protector 5 is sequentially provided with afilter screen 4, a differential pressure sensor 14, an on-site pressure gauge 15 and an on-line conductivity monitor I16. The other is the same as in the first embodiment.

And a third specific embodiment: the present embodiment is described with reference to fig. 1, and one difference between the present embodiment and the specific embodiment is that: the ultrapure water circulating valve 20 and theregeneration water valve 21 are sequentially arranged on the connecting pipeline between theultrapure water tank 10 and theregeneration module 23. The other is the same as in the first embodiment.

The specific embodiment IV is as follows: the present embodiment is described with reference to fig. 1, and one difference between the present embodiment and the specific embodiment is that: and a second conductivity on-line monitor 17 is arranged between thepermeable membrane component 8 and the EDI membrane stack 9. The other is the same as in the first embodiment.

Fifth embodiment: the present embodiment is described with reference to fig. 1, and one difference between the present embodiment and the specific embodiment is that: the connecting pipeline between the purifying column 12 and theregeneration module 23 is sequentially provided with acartridge filter 13, an on-line conductivity monitor III 22 and aregeneration water valve 21. The other is the same as in the first embodiment.

Fifth embodiment: the present embodiment is described with reference to fig. 1, and one difference between the present embodiment and the specific embodiment is that: the hydrogen guide pillar inlet door 37 and the hydrogen guide pillar outlet door 38 can be used for directly connecting with a hydrogen guide resin exchange column which is practically used in the field for in-vivo regeneration. The other is the same as in the first embodiment.

The hydrogen-conductive resin regeneration system according to the first to sixth embodiments comprises the following regeneration methods:

raw water enters the hydrogen guide regeneration system through the water inlet valve 1, and water quality discharge can be performed through the raw water discharge valve 2 at the initial stage of regeneration so as to prevent raw water pollution. And then the raw water enters afilter screen 4 through a secondary water inlet valve 3, and thefilter screen 4 filters the raw water to ensure that the entering raw water is free of large particulate matters. A differential pressure sensor PS14 and an in-situpressure display PI 15 are arranged on a pipeline behind thefilter screen 4 for displaying the water supply pressure condition, and a conductivity on-line monitor 16 is also arranged for monitoring the raw water quality condition. The raw water then passes through a water leakage protector 5 and a pretreatment module 6 (the pretreatment module consists of a fine filter and a multi-medium filter, the purpose of the pretreatment is to remove substances in the feed water which pollute or deteriorate the reverse osmosis and nanofiltration membranes, and once the pretreatment system is not functional, pollutants enter the reverse osmosis and nanofiltration system, the substances can accumulate on the membrane surface, if microorganisms are contained in the feed water, the propagation of the substances can have more serious consequences) and enter the high-pressure pump 7. The water enters a reverseosmosis membrane component 8 for reverse osmosis filtration after being boosted by a high-pressure pump 7. The concentrated water of the reverseosmosis membrane component 8 is discharged through a concentratedwater discharge valve 18, the produced water of the reverseosmosis membrane component 8 can enter the EDI membrane stack 9 after being subjected to water quality detection through a second conductivity on-line monitor 17, and the produced water is discharged through the produced water discharge valve 19 if the water quality is unqualified. The produced water enters anultrapure water tank 10 for standby after being purified by an EDI membrane stack 9.

In the standby state of the pure water in theultrapure water tank 10, the ultrapure water in theultrapure water tank 10 is pumped into the purification column 12 by the ultrapure water circulation pump 11 for secondary purification, the purified ultrapure water is filtered by thecartridge filter 13, and the filtered ultrapure water is returned to theultrapure water tank 10 through the ultrapure water circulation valve 20 for multiple circulation. And after the data of the third 22 on-line conductivity monitor is detected to be qualified, the water supply operation is carried out to theregeneration module 23 through theregeneration water valve 21.

Theregeneration module 23 is constituted by a regenerationliquid tank 24, aregeneration metering pump 25, aflow rate monitor 26, and a resin regeneration column 27. In theregeneration module 23, the hydrogen-conductive resin may be regenerated both in vitro and in bed.

The in-vitro regeneration mode is to replace the hydrogen-conductive resin to be regenerated and fill theresin filling port 28. After the filling, the resin regeneration column 27 is supplied with water through theregeneration water valve 21, the backwash water inlet valve 29 and the bottom discharge valve 30 in this order to perform resin backwash operation, and backwash water is discharged through thebackwash discharge valve 31. After the backwashing is completed, the backwashing water inlet valve 29 is closed, the forward washing water inlet valve 32 is opened to supply water to the resin regeneration column 27 for resin forward washing operation, and forward washing water is sequentially discharged by the bottom discharge valve 30 and the drain valve 33. After the forward washing is finished, the regeneration liquid in the regenerationliquid tank 24 sequentially passes through theflow monitor 26, the dosing valve 34 and the forward washing water inlet valve 32 to enter the resin regeneration column 27 by theregeneration metering pump 25, and the regeneration drainage is discharged by the bottom discharge valve 30 and the drain valve 33. After regeneration, the dosing valve 34 is closed, theregeneration water valve 21 and the forward washing water inlet valve 32 are used for flushing the resin regeneration column 27 into ultrapure water, the flushing conductivity is monitored by the conductivity on-line monitor IV 35, and after the resin is qualified in flushing, the resin is discharged by the resin discharge valve 36 for standby.

The in-bed regeneration mode is to disassemble the on-site hydrogen-conducting resin column to connect with the hydrogen guide column inlet door 37 and the hydrogen guide column outlet door 38 in theregeneration module 23, and the regeneration process is consistent with the in-vitro regeneration sequence.

Claims (5)

1. The hydrogen-guided resin regeneration system is characterized by comprising a water inlet valve (1), a raw water discharge valve (2), a secondary water inlet valve (3), a water leakage protector (5), a pretreatment component (6), a high-pressure pump (7), a reverse osmosis membrane component (8), an EDI membrane stack (9), an ultrapure water tank (10), an ultrapure water circulating pump (11), a purification column (12), a concentrated water discharge valve (18), a produced water discharge valve (19), a regeneration module (23), a regeneration liquid tank (24), a regeneration metering pump (25), a flow monitoring monitor (26), a resin regeneration column (27), a resin filling port (28), a backwashing water inlet valve (29), a bottom discharge valve (30), a backwashing water discharge valve (31), a forward washing water inlet valve (32), a pollution discharge valve (33), a dosing valve (34), an electrical conductivity on-line monitor IV (35), a resin discharge valve (36), a hydrogen guide column inlet door (37) and a hydrogen guide column outlet door (38);

the water outlet of the water inlet valve (1) is respectively communicated with the water inlet of the raw water discharge valve (2) and the water inlet of the secondary water inlet valve (3); the water outlet of the secondary water inlet valve (3) is communicated with the water inlet of the water leakage protector (5); the water outlet of the water leakage protector (5) is communicated with the water inlet of the pretreatment component (6); the water outlet of the pretreatment component (6) is communicated with the water inlet of the high-pressure pump (7); the water outlet of the high-pressure pump (7) is communicated with the water inlet of the reverse osmosis membrane component (8); the water outlet of the reverse osmosis membrane component (8) is respectively communicated with the water inlets of the concentrated water discharge valve (18), the water production discharge valve (19) and the EDI membrane stack (9); the water outlet of the EDI membrane stack (9) is respectively communicated with a concentrated water discharge valve (18), a produced water discharge valve (19) and the water inlet of the ultrapure water tank (10); the water outlet of the ultrapure water tank (10) is respectively communicated with the water inlet of the regeneration module (23) and the water inlet of the ultrapure water circulating pump (11); the water outlet of the ultrapure water circulating pump (11) is communicated with the water inlet of the purifying column (12); the water outlet of the purifying column (12) is communicated with the water inlet of the regeneration module (23);

the regeneration module (23) consists of a regeneration liquid tank (24), a regeneration metering pump (25), a flow monitoring monitor (26) and a resin regeneration column (27); the water inlet of the regeneration liquid tank (24) is respectively communicated with the water outlet of the ultrapure water tank (10); the water outlet of the regeneration liquid tank (24) is respectively communicated with the water inlet of the resin regeneration column (27) and the water inlet of the sewage discharge valve (33); a pipeline between the regenerated liquid tank (24) and the resin regenerated column (27) is sequentially provided with a regenerated metering pump (25), a flow monitoring monitor (26), a dosing valve (34), a backwashing discharge valve (31), a forward washing water inlet valve (32) and a hydrogen guide column inlet door (37); the outlet of the resin regeneration column (27) is respectively communicated with a resin discharge valve (36), a hydrogen guide column outlet door (38) and a bottom discharge valve (30); the bottom discharge valve (30) is communicated with the sewage discharge valve (33).

2. The hydrogen-conductive resin regeneration system according to claim 1, wherein a filter screen (4), a differential pressure sensor (14), an on-site pressure gauge (15) and an on-line conductivity monitor I (16) are sequentially arranged on a connecting pipeline of the secondary water inlet valve (3) and the water leakage protector (5).

3. The hydrogen-conductive resin regeneration system according to claim 1, wherein an ultrapure water circulation valve (20) and a regeneration water valve (21) are sequentially provided on a connection line between the ultrapure water tank (10) and the regeneration module (23).

4. The hydrogen-conducting resin regeneration system according to claim 1, wherein a second conductivity on-line monitor (17) is arranged between the reverse osmosis membrane component (8) and the EDI membrane stack (9).

5. The hydrogen-conductive resin regeneration system according to claim 1, wherein a cartridge filter (13), an on-line conductivity monitor III (22) and a regeneration water valve (21) are sequentially arranged on the connecting pipeline between the purification column (12) and the regeneration module (23).

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