CN212283587U - Steam generator blowdown ionization desalination membrane stack performance's test system - Google Patents
Steam generator blowdown ionization desalination membrane stack performance's test system Download PDFInfo
- Publication number
- CN212283587U CN212283587U CN202021405435.1U CN202021405435U CN212283587U CN 212283587 U CN212283587 U CN 212283587U CN 202021405435 U CN202021405435 U CN 202021405435U CN 212283587 U CN212283587 U CN 212283587U
- Authority
- CN
- China
- Prior art keywords
- ionization
- membrane stack
- desalination membrane
- desalination
- steam generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a test system of steam generator blowdown ionization desalination membrane stack performance, former water tank export sample tube coupling the cation exchange bed, cation exchange bed export with be provided with in the middle of the ionization desalination membrane stack the intake pump, ionization desalination membrane stack export flows fresh water and dense water respectively, ionization desalination membrane stack export fresh water flows back to the former water tank through the return line, ionization desalination membrane stack export dense water can discharge or flow back to the former water tank through the return line according to the experimental demand; the medicine feeding pump is arranged on the backflow pipeline; and a pressure relief valve is arranged on an inlet pipeline of the ionization desalting mold stack to prevent the ionization desalting mold stack from water inlet overpressure. The testing device provided by the utility model can provide stable testing medium according to the requirements of water quality, flow and temperature, and flexibly adjust the recovery rate of the ionized desalination membrane stack; the change trend of the loop water quality and the balance state of the membrane stack can be accurately obtained without the need of offline or online ion chromatography measurement.
Description
Technical Field
The utility model belongs to the experimental verification technique of nuclear power station equipment especially relates to steam generator drainage's experimental field.
Background
The nuclear power plant steam generator sewage system adopts a continuous ionization desalination (EDI) process to replace the traditional ion exchange process to treat sewage, and has the remarkable advantages of high treatment efficiency, continuous regeneration of resin, long service life of the device, simple and convenient operation and maintenance, small occupied area, small secondary waste generation amount and the like. Compared with an EDI membrane stack used in conventional industrial water treatment, the effluent of the steam generator has higher temperature and contains a higher-concentration alkalizer, the performance and service life of the EDI membrane stack are tested greatly, the EDI performance test and evaluation are interfered, and how to evaluate whether the EDI membrane stack meets the requirement on the effluent purification performance of the steam generator needs a set of test method and device capable of effectively simulating the working condition of a loop, so that technical support is provided for the membrane stack selection and optimization of engineering application.
Because the alkalizer of high concentration has improved the conductivity value of background solution, and the impurity ion concentration of waiting to get rid of in the blowdown water only ppb level, whether resin has reached the equilibrium with anion and cation in the blowdown water in the EDI membrane stack, directly can't realize through online measurement return circuit water conductivity, nevertheless if through the sample test, consider that water sample analysis needs certain time, can't judge balanced progress in good time, if adopt and increase online ion chromatogram, experimental cost greatly increased again, the utility model provides a test method and device for verifying steam generator blowdown electric desalting membrane stack performance provide an effective in good time, stable, economic on-line monitoring method and means for solving this technological problem.
The utility model provides a test system for verifying steam generator blowdown ionization desalination membrane stack performance, steam generator blowdown water operating condition and quality of water can be simulated, the operational aspect of continuous on-line monitoring blowdown ionization desalination membrane stack through a special sample return circuit passes through the conductivity value, know the ionic balanced state in membrane stack and the return circuit in good time, verify the performance of ionization desalination membrane stack, the operational life of simulation aassessment membrane stack, the purification efficiency etc. of different water chemistry backgrounds (like different alkalization agent types or concentration) membrane stack of aassessment.
SUMMERY OF THE UTILITY MODEL
In order to provide a timely, effective, stable and economical on-line monitoring method and means; the utility model provides a test system for the performance of a steam generator pollution discharge ionization desalination membrane stack, which comprises a raw water tank (TK1), a cation exchange bed, a water inlet pump, an ionization desalination membrane stack and a dosing pump;
the raw water tank (TK1) outlet sampling pipeline is connected with the cation exchange bed (MV01), the water inlet pump is arranged between the cation exchange bed (MV01) outlet and the ionization desalination mould pile, the ionization desalination mould pile outlet respectively flows fresh water and concentrated water, the ionization desalination mould pile outlet fresh water flows back to the raw water tank (TK1) through a return pipeline, and the ionization desalination mould pile outlet concentrated water can be discharged according to test requirements or flows back to the raw water tank (TK1) through the return pipeline; the medicine feeding pump is arranged on the backflow pipeline; and a pressure relief valve is arranged on an inlet pipeline of the ionization desalting mold stack to prevent the ionization desalting mold stack from water inlet overpressure.
Preferably, the raw water tank (TK1) is provided with an electric heater.
Preferably, a nitrogen gas supply port is arranged on the raw water tank (TK1), and a pressure gauge automatic control nitrogen switch is arranged on the raw water tank (TK 1).
Preferably, the inlet and the outlet of the cation exchange bed (MV01) are connected by a quick joint, so that the quick replacement can be realized.
Preferably, the cation exchange bed (MV01) is filled with a high purity hydrogen gel type cation exchange resin; the volume total exchange capacity of the high-purity hydrogen type gel cation exchange resin is 2.0-2.5 eq/L, the amount of the high-purity hydrogen type gel cation exchange resin filled is 1/5-1/50 of the sampling flow of the test system, and the filling height-diameter ratio is 2-100.
Preferably, the head of the water inlet pump is not less than the total pressure drop of the system loop and not more than the pressure which can be borne by the ionized desalination membrane stack.
Preferably, the inlet pipeline of the ionization desalination membrane stack is provided with a cartridge filter, and the precision of the filter is more than 1 μm.
Preferably, the dosing pump adopts a metering pump capable of accurately adjusting the flow rate.
Preferably, the dosing pump is provided with a mixer on a downstream pipeline before entering the raw water tank (TK1) so as to fully mix the medicament.
The utility model provides a test device can require to provide stable test medium according to quality of water, flow, temperature, adjusts EDI membrane stack rate of recovery in a flexible way. The utility model provides a test method and device can need not the off-line or online ion chromatography measurement under high concentration alkalizer background solution, can accurately learn return circuit quality of water variation trend and membrane stack balanced state. The running condition and the performance change condition of the EDI membrane stack can be monitored in real time through the online instrument degrees of the pressure at the inlet and the outlet of the EDI membrane stack, the conductivity/resistivity and the like. The test device is provided with a PLC electric control cabinet, and can realize the start and stop of relevant electrical parts and the display, alarm and control of instruments. The PLC electric control cabinet is provided with a standard communication interface for transmitting signals to the user main control room.
Drawings
Fig. 1 is a schematic view of a testing system for testing the performance of a blowdown ionization desalination membrane stack of the steam generator of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
A method and a system for testing the performance of a steam generator pollution discharge ionization desalination membrane stack are disclosed, and the flow is shown in figure 1. Has the following characteristics:
the testing device consists of equipment such as a raw water tank TK1, a high-purity hydrogen type cation exchange column, a water inlet pump, an ionization desalting mold stack, a dosing pump and the like, and related instruments, pipelines and valves, and the materials of all parts of the testing device can ensure that no impurities are precipitated under the test working condition. The raw water tank TK1 is provided with an electric heater which is automatically controlled to be switched on and off by a temperature signal so as to ensure that the medium temperature meets the test requirements in the test process. The raw water tank TK1 is provided with an ultrapure water inlet, the resistivity of ultrapure water for test is more than or equal to 17 million, and TOC is less than 50 ppb. The raw water tank TK1 is covered by nitrogen, and the influence of CO2 in the air on the test result is avoided. The nitrogen gas supply pipeline is provided with a pressure reducing valve to reduce the pressure of the nitrogen gas to 0.1 MPa. The raw water tank TK1 is provided with a pressure gauge automatic control nitrogen pressure reducing valve switch. A sampling pipeline at an outlet of a raw water tank TK1 is provided with a cation exchange bed for measuring the conductivity of raw water and eliminating the influence of a high-concentration alkalizer in the raw water on conductivity test, and an inlet and an outlet of the column are connected in a quick joint mode, so that quick replacement can be realized after failure. The resin column is filled with high-purity hydrogen type gel type cation exchange resin (the hydrogen type conversion rate is more than 99 percent), the failure state can be displayed in real time through color change, the interference of the resin failure on the conductivity measurement is prevented, and the accuracy and the stability of the measurement are improved. The total exchange capacity of the resin volume is 2.0-2.5 eq/L, the resin filling amount is 1/5-1/50 of the sampling flow rate, the filling height-diameter ratio is 2-100, and the continuous sampling accumulation time of the column can reach 10-80 days. The filling proportion of the color-changing resin is 10-100%. The testing device is provided with a water inlet pump, the flow of the pump is matched with the flow of the EDI membrane stack, the pump lift is not less than the total pressure drop of the testing loop, and is not more than the pressure which can be borne by the ionization desalination membrane stack. And an EDI membrane stack inlet pipeline is provided with a pressure relief valve to prevent EDI water from entering into the reactor and causing overpressure. The pipeline at the inlet of the EDI membrane stack is provided with a security filter, and the precision of the filter is more than 1 mu m. The testing device is provided with related water inlet and outlet pipelines according to the EDI membrane stack water inlet and outlet design. As shown in figure 1, the pipeline configuration of the two-inlet and two-outlet EDI membrane stack is that EDI fresh water flows back to a raw water tank TK1, and EDI membrane stack concentrated water can be discharged or flows back to the raw water tank TK1 according to test requirements. The test device backflow pipeline is provided with a dosing pump, and the dosing pump can continuously dose drugs to the loop according to the test water quality requirement and the pipeline flow. The dosing pump adopts a metering pump capable of accurately adjusting the flow, and the pump head corresponding to the dosing flow is larger than the pressure of the main pipeline. The downstream pipeline of the dosing pump is provided with a mixer, so that the medicaments are fully mixed, and the water quality is uniform.
The test device can monitor the pH value, conductivity, temperature, pressure and flow of the inlet water on line; pressure, flow rate and conductivity of EDI concentrated water; pH value, conductivity, temperature, pressure and flow of EDI fresh water.
The testing device is provided with sampling ports at the water inlet side, the EDI fresh water side and the EDI concentrated water side, and can sample at any time.
The test device is provided with a PLC electric control cabinet, and the start and stop of relevant electrical parts and the display, alarm and control of instruments can be realized in the PLC electric control cabinet on site. The PLC electric control cabinet is provided with a standard communication interface for transmitting signals to the user main control room. The EDI membrane stack is provided with a direct current power supply, and the output voltage and current can be regulated according to the EDI membrane stack requirements and test requirements.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to encompass such modifications and variations. The above-described embodiments or implementations are merely illustrative of the present invention, which may be embodied in other specific forms or arrangements without departing from the spirit or essential characteristics thereof. The described embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention should be determined by the appended claims, and any changes that are equivalent to the intent and scope of the claims are intended to be embraced therein.
Claims (9)
1. A test system for the performance of a steam generator blowdown ionization desalination membrane stack is characterized by comprising a raw water tank (TK1), a cation exchange bed, a water inlet pump, an ionization desalination membrane stack and a dosing pump;
the raw water tank (TK1) outlet sampling pipeline is connected with the cation exchange bed (MV01), the water inlet pump is arranged between the cation exchange bed (MV01) outlet and the ionization desalination mould pile, the ionization desalination mould pile outlet respectively flows fresh water and concentrated water, the ionization desalination mould pile outlet fresh water flows back to the raw water tank (TK1) through a return pipeline, and the ionization desalination mould pile outlet concentrated water can be discharged according to test requirements or flows back to the raw water tank (TK1) through the return pipeline; the medicine feeding pump is arranged on the backflow pipeline; and a pressure relief valve is arranged on an inlet pipeline of the ionization desalting mold stack to prevent the ionization desalting mold stack from water inlet overpressure.
2. The steam generator blowdown ionization desalination membrane stack performance test system of claim 1, wherein the raw water tank (TK1) is equipped with an electric heater.
3. The system for testing the performance of the steam generator blowdown ionization desalination membrane stack of claim 1, wherein a nitrogen gas supply port is arranged on the raw water tank (TK1), and a pressure gauge automatic control nitrogen gas switch is arranged on the raw water tank (TK 1).
4. The system for testing the performance of the steam generator blowdown ionization desalination membrane stack of claim 1, wherein the inlet and outlet of the cation exchange bed (MV01) are connected by a quick connector to realize quick replacement.
5. The steam generator blowdown ionization desalination membrane stack performance test system of claim 1, wherein said cation exchange bed (MV01) is packed with high purity hydrogen type gel type cation exchange resin; the volume total exchange capacity of the high-purity hydrogen type gel cation exchange resin is 2.0-2.5 eq/L, the amount of the high-purity hydrogen type gel cation exchange resin filled is 1/5-1/50 of the sampling flow of the test system, and the filling height-diameter ratio is 2-100.
6. The system for testing the performance of the steam generator blowdown ionization desalination membrane stack of claim 1, wherein the head of the feed water pump is not less than the total pressure drop of the system loop and not more than the pressure which can be borne by the ionization desalination membrane stack.
7. The system for testing the performance of the steam generator blowdown ionization desalination membrane stack of claim 1, wherein the inlet pipe of the ionization desalination membrane stack is provided with a cartridge filter, and the filter precision is greater than 1 μm.
8. The system for testing the performance of the steam generator blowdown ionization desalination membrane stack of claim 1, wherein the dosing pump adopts a metering pump capable of accurately adjusting the flow rate.
9. The system for testing the performance of the steam generator blowdown ionization desalination membrane stack as claimed in claim 1, wherein the dosing pump is provided with a mixer on a downstream pipeline before entering the raw water tank (TK1) for fully mixing the chemicals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021405435.1U CN212283587U (en) | 2020-07-16 | 2020-07-16 | Steam generator blowdown ionization desalination membrane stack performance's test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021405435.1U CN212283587U (en) | 2020-07-16 | 2020-07-16 | Steam generator blowdown ionization desalination membrane stack performance's test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212283587U true CN212283587U (en) | 2021-01-05 |
Family
ID=73935992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021405435.1U Active CN212283587U (en) | 2020-07-16 | 2020-07-16 | Steam generator blowdown ionization desalination membrane stack performance's test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212283587U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672327A (en) * | 2020-07-16 | 2020-09-18 | 上海核工程研究设计院有限公司 | System and method for testing performance of pollution discharge ionization desalination membrane stack of steam generator |
-
2020
- 2020-07-16 CN CN202021405435.1U patent/CN212283587U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672327A (en) * | 2020-07-16 | 2020-09-18 | 上海核工程研究设计院有限公司 | System and method for testing performance of pollution discharge ionization desalination membrane stack of steam generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101477843B (en) | High temperature high pressure water circulation system | |
| CN212283587U (en) | Steam generator blowdown ionization desalination membrane stack performance's test system | |
| JP2002282850A (en) | Ultrapure water producing equipment | |
| CN111672327A (en) | System and method for testing performance of pollution discharge ionization desalination membrane stack of steam generator | |
| CN203764143U (en) | Device for testing reverse osmosis membrane elements and nanofiltration membrane elements in batches | |
| CN213517098U (en) | Power plant water quality on-line instrument evaluation test device | |
| CN107561127A (en) | It is a kind of integrated from regeneration hydrogen conductivity negative electricity conductance and the measurement apparatus of total conductivity | |
| CN219031837U (en) | Hydrogen-conductive resin regeneration system | |
| CN206096106U (en) | Generator inner cooling water water quality monitoring device | |
| CN110156221A (en) | Integrated intelligent ultrapure water system | |
| CN211453453U (en) | Low-conductivity water sample on-line pH meter measuring pool with ion activator | |
| CN113845187B (en) | Device for detecting influence of alkalizer on EDI (electronic data interchange) of nuclear power evaporator drainage system | |
| CN110487850B (en) | Degassing conductivity measurement system and method | |
| CN113740386A (en) | Measuring device and measuring method for accurately measuring hydrogen conductivity of water | |
| CN113552178A (en) | Automatic continuous measurement method for hydrogen conductivity in steam-water sampling | |
| CN208554227U (en) | A kind of self-checking device for Desalting Water System acid-alkali regeneration liquid concentration | |
| CN112213439A (en) | Device and method for measuring content of dissolved hydrogen in high-temperature high-pressure steam | |
| CN102936069A (en) | Ultrawater purifier for lab | |
| CN111781247A (en) | High-parameter boiler water quality monitoring system and method | |
| CN208071511U (en) | Integrated intelligent ultrapure water system | |
| CN217060182U (en) | Be used for portable sodium ion concentration measurement device of nuclear power station | |
| CN219942705U (en) | Standard conductivity/pH value solution generating device | |
| CN2558990Y (en) | Pre-complexation and post-complexation conductance difference type softener outlet water hardness monitor | |
| CN218910532U (en) | Oxyhydrogen therapeutic instrument is collected to waste water and including its oxyhydrogen generating equipment | |
| CN212559501U (en) | Complete integrated device of dosing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |