CN105738189A - Concentration treatment device and method for radioactivity analysis and detection - Google Patents
Concentration treatment device and method for radioactivity analysis and detection Download PDFInfo
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- CN105738189A CN105738189A CN201610203018.0A CN201610203018A CN105738189A CN 105738189 A CN105738189 A CN 105738189A CN 201610203018 A CN201610203018 A CN 201610203018A CN 105738189 A CN105738189 A CN 105738189A
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- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 229
- 238000004140 cleaning Methods 0.000 claims abstract description 72
- 239000000126 substance Substances 0.000 claims abstract description 31
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 239000013505 freshwater Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 229920001661 Chitosan Polymers 0.000 claims description 6
- 239000004760 aramid Substances 0.000 claims description 4
- 229920003235 aromatic polyamide Polymers 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 abstract description 6
- 230000008020 evaporation Effects 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000002285 radioactive effect Effects 0.000 abstract description 2
- 238000011109 contamination Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4005—Concentrating samples by transferring a selected component through a membrane
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a concentration treatment device and method for radioactivity analysis and detection.The device comprises a raw water tank, a raw water pump, a multi-medium filter, a precision filter, a high-pressure pump, a membrane concentration device, a concentrated water tank, a cleaning water tank, a cleaning pump and an automatic control system.The method includes the three steps of pre-cleaning, concentration and chemical cleaning, wherein the three stages are controlled by the automatic control system and automatically completed.A water sample can be concentrated through the device, the concentration of radioactive elements in the water sample is increased through concentration, and in subsequent detection, the volume of water obtained after evaporation concentration is greatly reduced, so that the workload of analysts is reduced; meanwhile, the device operates intermittently, the device is chemically cleaned every time concentration is completed once, and manual starting is not needed; the device is high in separation efficiency, large in concentration multiple, slight in membrane contamination and capable of being cleaned on line.
Description
Technical field
The invention belongs to radioelement technical field of analysis and detection, be specifically related to the concentration device and method of a kind of radioassay detection.
Background technology
In water body, radioactive element content is low, when being analyzed at present detecting, it is necessary to water sample carries out the concentration of high multiple.The method that concentration adopts at present is evaporation and concentration, and the volume of water sample needed during evaporation very big (about 50 liters), required time is also very long (a few days), after being concentrated to certain volume, then carries out sulfation and calcination.Calcination gained solid residue amount has minimum quality requirement, when in water sample, constituent content is relatively low, early stage needs the volume of water sample of evaporation and concentration will be relatively larger, time required for evaporation is also long, and processing procedure needs analysis personnel's whole process on duty, therefore existing method is consuming time, effort, power consumption, inefficiency.
Conventional film device is usually arranged as more than two, when film device is carried out Chemical cleaning, it is possible to ensure the continuous operation of membranous system.What conventional film device retained is fresh water, when occurring that the standard osmotic water yield declines 10%～15%, modular system pressure reduction increases by 10%～15%, when modular system salt rejection rate decline 1%～2% or fresh water salinity substantially increase, explanation system needs to carry out Chemical cleaning, now need related personnel to record relevant parameter, artificially start and stop chemical cleaning procedure.
Industrialized reverse-osmosis membrane element material mostly is aromatic polyamide, has the advantages such as physicochemical stability, resistance to highly basic, oils and fats, organic solvent, mechanical strength be good.Chitosan class material is to the interception capacity of divalent metal salt more than univalent metal salt simultaneously, and through modified chitosan class reverse osmosis membrane acid and alkali-resistance, mechanical strength is good, but still fewer in commercial Application.
Summary of the invention
The present invention proposes the concentration device and method of a kind of radioassay detection, and water sample can be concentrated by this device, through concentration, in water sample, radioelement concentration increases, when carrying out subsequent detection, the water yield volume of evaporation and concentration greatly reduces, and reduces the workload of analysis personnel；The present invention is intermittent duty simultaneously, has often concentrated once, just automatically equipment has been carried out Chemical cleaning, it is not necessary to artificially start, and this device separation efficiency is high, and cycles of concentration is high, and fouling membrane is light, can on-line cleaning.
The technical scheme is that and be achieved in that:
The concentration device of a kind of radioassay detection, including raw water box, raw water pump, more medium filter, accurate filter, high-pressure pump, film condensing device, dense water tank, cleans water tank, cleaning pump and robot control system(RCS)；The outlet of described raw water box is connected with the water inlet of described raw water pump, the outlet of described raw water pump is connected with the water inlet of described more medium filter, the outlet of described more medium filter is connected with the water inlet of described accurate filter, the outlet of described accurate filter is connected with the water inlet of described high-pressure pump, the outlet of described high-pressure pump is connected with the water inlet of described film condensing device, the dense water out of described film condensing device is connected with the import of described dense water tank, the outlet of described dense water tank is connected with the water inlet of described high-pressure pump, the water outlet of described film condensing device is connected with the water inlet of described cleaning water tank, described cleaning water tank is connected with the import of described cleaning pump, described cleaning delivery side of pump is connected with the import of described film condensing device.
Preferably, the membrane module material in described film condensing device is aramid materials or chitosan class material, and described membrane module is rolling or dish tubular type.
Further, the concentration device of described radioassay detection, also including prerinse pipeline, the import of described prerinse pipeline is connected with the dense water out of described film condensing device, and the outlet of described prerinse pipeline is connected with the water outlet of described film condensing device.
Further, the concentration device of described radioassay detection, also include before inlet gage, discharge pressure table, film Pressure gauge after Pressure gauge and film, described inlet gage is arranged on the outlet pipeline of described raw water box, described discharge pressure table is arranged on the fresh water line of described film condensing device, before described film, Pressure gauge is arranged on the inlet pipeline of described film condensing device, and after described film, Pressure gauge is arranged on the dense water outlet pipeline of described film condensing device.
Further, the concentration device of described radioassay detection, also include into water conductivity meter, dense Water Conductance Instrument and fresh water conductivity meter, described water inlet conductivity meter is located on the inlet pipeline of described high-pressure pump, described dense Water Conductance Instrument is located on the dense water outlet pipeline of described film condensing device, and described fresh water conductivity meter is located on the fresh water outlet pipeline of described film condensing device.
Further, the inlet pipeline of described high-pressure pump is provided with entering water electromagnetic valve；The outlet pipeline of described dense water tank is provided with dense water circulating electromagnetic valve；Described prerinse pipeline is provided with prerinse electromagnetic valve；Pipeline between described cleaning pump and described film condensing device is provided with cleaning entering water electromagnetic valve；Pipeline between described film condensing device and described cleaning water tank is provided with and washes out water solenoid valve.
Further, it is provided with minimum liquid level meter in described raw water box；It is provided with the highest liquidometer in described dense water tank.
Said apparatus is utilized to carry out the concentration method of radioassay detection, including prerinse, concentration and Chemical cleaning three phases；
First pass through control panel and system prerinse time, water inlet volume, cycles of concentration are set；Opening in equipment robot control system(RCS) after being provided with and automatically run button, now entering water electromagnetic valve and prerinse electromagnetic valve are all opened, and dense water circulating electromagnetic valve is closed, and raw water pump runs, and raw water box Central Plains water enters in system by raw water pump, and system carries out prerinse；
After prerinse completes, robot control system(RCS) closes prerinse electromagnetic valve, open high-pressure pump, system sample introduction also starts concentration, raw water box Central Plains water sequentially enters more medium filter and accurate filter through raw water pump, former water after filtering enters film condensing device after high-pressure pump pressurizes and carries out concentration, and the fresh water after concentration is partly into cleaning water tank, the outer row of a part；
Dense water after concentration enters dense water tank through dense water out, system stops water inlet afterwards, robot control system(RCS) closes entering water electromagnetic valve, open dense water circulating electromagnetic valve, starting the circulation of dense water, the dense water in dense water tank enters high-pressure pump through dense tank outlet, enters into film condensing device and carry out reconcentration process after high-pressure pump pressurizes, dense water is constantly circulated concentration, until it reaches required cycles of concentration；
After concentration terminates, start Chemical cleaning, robot control system(RCS) closes high-pressure pump and dense water circulating electromagnetic valve, open and clean pump, cleaning entering water electromagnetic valve and wash out water solenoid valve, the cleaned water outlet of water tank of chemical cleaning solution now prepared enters and cleans pump, enters film condensing device after cleaned pump, robot control system(RCS) determines Chemical cleaning dwell time according to in-line meter reading in system, and Chemical cleaning water outlet is optionally back to cleaning water tank or emits.
Preferably, the mode of described Chemical cleaning is on-line cleaning, and described Chemical cleaning type is pickling, and described chemical cleaning solution is the mixed liquor of citric acid and ammonia.
System often completes the concentration of a testing sample will carry out Chemical cleaning to equipment, to eliminate influencing each other of radioelement between different sample, thus improving accuracy and the precision of concentration every time, more accurately the trace level activity element in water sample is analyzed detection.
The invention have the benefit that
The technology of membrance concentration is incorporated in the pretreatment of radioassay detection by the present invention, this device is simple and practical, and can realize height automatic control, by the control panel in system, can arrange system water inlet volume, prerinse time, cycles of concentration, film before pressure, Inlet and outlet water flow etc..Film condensing device is to circulate, by the dense water of single film, the concentration realizing high multiple simultaneously, decreases the consumption that makes of film, reduces the cost consumption of manpower and resource.The present invention is also devised with rinser, can effectively solve the membrane pollution problem in membrance concentration separation process.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the concentration device of the radioassay detection described in the embodiment of the present invention.
In figure:
1, raw water box；2, raw water pump；3, more medium filter；4, accurate filter；5, high-pressure pump；6, film condensing device；7, dense water tank；8, water tank is cleaned；9, pump is cleaned；10, Pressure gauge before film；11, Pressure gauge after film；12, water inlet conductivity meter；13, dense Water Conductance Instrument；14, fresh water conductivity meter；15, entering water electromagnetic valve；16, prerinse electromagnetic valve；17, dense water circulating electromagnetic valve；18, entering water electromagnetic valve is cleaned；19, water solenoid valve is washed out；20, inlet gage；21, discharge pressure table；22, prerinse pipeline.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
As shown in Figure 1, the concentration device of the radioassay detection described in the embodiment of the present invention, including raw water box 1, raw water pump 2, more medium filter 3, accurate filter 4, high-pressure pump 5, film condensing device 6, dense water tank 7, cleans water tank 8, cleaning pump 9 and robot control system(RCS)；The outlet of described raw water box 1 is connected with the water inlet of described raw water pump 2, the outlet of described raw water pump 2 is connected with the water inlet of described more medium filter 3, the outlet of described more medium filter 3 is connected with the water inlet of described accurate filter 4, the outlet of described accurate filter 4 is connected with the water inlet of described high-pressure pump 5, the outlet of described high-pressure pump 5 is connected with the water inlet of described film condensing device 6, the dense water out of described film condensing device 6 is connected with the import of described dense water tank 7, the outlet of described dense water tank 7 is connected with the water inlet of described high-pressure pump 5, the water outlet of described film condensing device 6 is connected with the water inlet of described cleaning water tank 8, described cleaning water tank 8 is connected with the import of described cleaning pump 9, the outlet of described cleaning pump 9 is connected with the import of described film condensing device 6.
In this example, the membrane module material in described film condensing device 6 is chitosan class material, and described membrane module is rolling.
Wherein, the concentration device of described radioassay detection, also including prerinse pipeline 22, the import of described prerinse pipeline 22 is connected with the dense water out of described film condensing device 6, and the outlet of described prerinse pipeline 22 is connected with the water outlet of described film condensing device 6.
Wherein, the concentration device of described radioassay detection, also include before inlet gage 20, discharge pressure table 21, film Pressure gauge 11 after Pressure gauge 10 and film, described inlet gage 20 is arranged on the outlet pipeline of described raw water box 1, described discharge pressure table 21 is arranged on the fresh water line of described film condensing device 6, before described film, Pressure gauge 10 is arranged on the inlet pipeline of described film condensing device 6, and after described film, Pressure gauge 11 is arranged on the dense water outlet pipeline of described film condensing device 6.
Wherein, the concentration device of described radioassay detection, also include into water conductivity meter 12, dense Water Conductance Instrument 13 and fresh water conductivity meter 14, described water inlet conductivity meter 12 is located on the inlet pipeline of described high-pressure pump 5, described dense Water Conductance Instrument 13 is located on the dense water outlet pipeline of described film condensing device 6, and described fresh water conductivity meter 14 is located on the fresh water outlet pipeline of described film condensing device 6.
Wherein, the inlet pipeline of described high-pressure pump 5 is provided with entering water electromagnetic valve 15；The outlet pipeline of described dense water tank 7 is provided with dense water circulating electromagnetic valve 17；Described prerinse pipeline 22 is provided with prerinse electromagnetic valve 16；Pipeline between described cleaning pump 9 and described film condensing device 6 is provided with cleaning entering water electromagnetic valve 18；Pipeline between described film condensing device 6 and described cleaning water tank 8 is provided with and washes out water solenoid valve 19.
Wherein, it is provided with minimum liquid level meter in described raw water box 1；It is provided with the highest liquidometer in described dense water tank.
Said apparatus is utilized to carry out the concentration method of radioassay detection, including prerinse, concentration and Chemical cleaning three phases；
First pass through control panel and system prerinse time, water inlet volume, cycles of concentration are set；Open in equipment robot control system(RCS) after being provided with and automatically run button, now entering water electromagnetic valve 15 and prerinse electromagnetic valve 16 are all opened, and dense water circulating electromagnetic valve 17 is closed, and raw water pump 2 runs, raw water box 1 Central Plains water enters in system by raw water pump 2, and system carries out prerinse；
After prerinse completes, robot control system(RCS) closes prerinse electromagnetic valve 16, open high-pressure pump 5, system sample introduction also starts concentration, raw water box 1 Central Plains water sequentially enters more medium filter 3 and accurate filter 4 through raw water pump 2, former water after filtering enters film condensing device 6 after high-pressure pump 5 pressurizes and carries out concentration, and the fresh water after concentration is partly into cleaning water tank 8, the outer row of a part；
Dense water after concentration enters dense water tank 7 through dense water out, system stops water inlet afterwards, robot control system(RCS) closes entering water electromagnetic valve 15, open dense water circulating electromagnetic valve 17, starting the circulation of dense water, the dense water in dense water tank 7 enters high-pressure pump 5 through dense tank outlet, enters into film condensing device 6 and carry out reconcentration process after high-pressure pump 5 pressurizes, dense water is constantly circulated concentration, until it reaches required cycles of concentration；
After concentration terminates, start Chemical cleaning, robot control system(RCS) closes high-pressure pump 5 and dense water circulating electromagnetic valve 17, open and clean pump, cleaning entering water electromagnetic valve 18 and wash out water solenoid valve 19, chemical cleaning solution cleaned water tank 8 outlet now prepared enters and cleans pump 9, enters film condensing device 6 after cleaned pump 9, robot control system(RCS) determines Chemical cleaning dwell time according to in-line meter reading in system, and Chemical cleaning water outlet is optionally back to cleaning water tank or emits.
Wherein, the mode of described Chemical cleaning is on-line cleaning, and described Chemical cleaning type is pickling, and described chemical cleaning solution is the mixed liquor of citric acid and ammonia.
The innovative point of the present invention is:
1, membrance concentration isolation technics is firstly introduced in the middle of radioassay detection pretreatment.
2, system operation mode is: prerinse, concentration and cleaning.Clean after prerinse and concentration, it is ensure the key that this system may be used for radioassay detection, especially water sample is concentrated every time after, it is required for equipment is carried out Chemical cleaning, purpose is to eliminate influencing each other of different sample room, to improve the precision of concentration every time, more accurately the radioelement of trace in water sample can be analyzed detection.
3, equipment achieves full automation, and equipment has online conductivity meter and Pressure gauge, relies on the reading of instrument to automatically determine cycles of concentration and whether cleaning can stop.
4, the membrane module material selected by film condensing device can be aramid materials or chitosan class material, and membrane module can be rolling or dish tubular type.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (9)
1. the concentration device of a radioassay detection, it is characterised in that: include raw water box, raw water pump, more medium filter, accurate filter, high-pressure pump, film condensing device, dense water tank, clean water tank, clean pump and robot control system(RCS)；The outlet of described raw water box is connected with the water inlet of described raw water pump, the outlet of described raw water pump is connected with the water inlet of described more medium filter, the outlet of described more medium filter is connected with the water inlet of described accurate filter, the outlet of described accurate filter is connected with the water inlet of described high-pressure pump, the outlet of described high-pressure pump is connected with the water inlet of described film condensing device, the dense water out of described film condensing device is connected with the import of described dense water tank, the outlet of described dense water tank is connected with the water inlet of described high-pressure pump, the water outlet of described film condensing device is connected with the water inlet of described cleaning water tank, described cleaning water tank is connected with the import of described cleaning pump, described cleaning delivery side of pump is connected with the import of described film condensing device.
2. the concentration device of radioassay according to claim 1 detection, it is characterised in that: the membrane module material in described film condensing device is aramid materials or chitosan class material, and described membrane module is rolling or dish tubular type.
3. the concentration device of radioassay according to claim 1 detection, it is characterized in that: also include prerinse pipeline, the import of described prerinse pipeline is connected with the dense water out of described film condensing device, and the outlet of described prerinse pipeline is connected with the water outlet of described film condensing device.
4. the concentration device of radioassay according to claim 1 detection, it is characterized in that: also include before inlet gage, discharge pressure table, film Pressure gauge after Pressure gauge and film, described inlet gage is arranged on the outlet pipeline of described raw water box, described discharge pressure table is arranged on the fresh water line of described film condensing device, before described film, Pressure gauge is arranged on the inlet pipeline of described film condensing device, and after described film, Pressure gauge is arranged on the dense water outlet pipeline of described film condensing device.
5. the concentration device of radioassay according to claim 1 detection, it is characterized in that: also include into water conductivity meter, dense Water Conductance Instrument and fresh water conductivity meter, described water inlet conductivity meter is located on the inlet pipeline of described high-pressure pump, described dense Water Conductance Instrument is located on the dense water outlet pipeline of described film condensing device, and described fresh water conductivity meter is located on the fresh water outlet pipeline of described film condensing device.
6. the concentration device of radioassay according to claim 2 detection, it is characterised in that: the inlet pipeline of described high-pressure pump is provided with entering water electromagnetic valve；The outlet pipeline of described dense water tank is provided with dense water circulating electromagnetic valve；Described prerinse pipeline is provided with prerinse electromagnetic valve；Pipeline between described cleaning pump and described film condensing device is provided with cleaning entering water electromagnetic valve；Pipeline between described film condensing device and described cleaning water tank is provided with and washes out water solenoid valve.
7. the concentration device of radioassay according to claim 1 detection, it is characterised in that: it is provided with minimum liquid level meter in described raw water box；It is provided with the highest liquidometer in described dense water tank.
8. utilize device described in any one of claim 1-7 to carry out the concentration method of radioassay detection, it is characterised in that to include prerinse, concentration and Chemical cleaning three phases；
First pass through control panel and system prerinse time, water inlet volume, cycles of concentration are set；Opening in equipment robot control system(RCS) after being provided with and automatically run button, now entering water electromagnetic valve and prerinse electromagnetic valve are all opened, and dense water circulating electromagnetic valve is closed, and raw water pump runs, and raw water box Central Plains water enters in system by raw water pump, and system carries out prerinse；
After prerinse completes, robot control system(RCS) closes prerinse electromagnetic valve, open high-pressure pump, system sample introduction also starts concentration, raw water box Central Plains water sequentially enters more medium filter and accurate filter through raw water pump, former water after filtering enters film condensing device after high-pressure pump pressurizes and carries out concentration, and the fresh water after concentration is partly into cleaning water tank, the outer row of a part；
Dense water after concentration enters dense water tank through dense water out, system stops water inlet afterwards, robot control system(RCS) closes entering water electromagnetic valve, open dense water circulating electromagnetic valve, starting the circulation of dense water, the dense water in dense water tank enters high-pressure pump through dense tank outlet, enters into film condensing device and carry out reconcentration process after high-pressure pump pressurizes, dense water is constantly circulated concentration, until it reaches required cycles of concentration；
After concentration terminates, start Chemical cleaning, robot control system(RCS) closes high-pressure pump and dense water circulating electromagnetic valve, open and clean pump, cleaning entering water electromagnetic valve and wash out water solenoid valve, the cleaned water outlet of water tank of chemical cleaning solution now prepared enters and cleans pump, enters film condensing device after cleaned pump, robot control system(RCS) determines Chemical cleaning dwell time according to in-line meter reading in system, and Chemical cleaning water outlet is optionally back to cleaning water tank or emits.
9. method according to claim 8, it is characterised in that: the mode of described Chemical cleaning is on-line cleaning, and described Chemical cleaning type is pickling, and described chemical cleaning solution is the mixed liquor of citric acid and ammonia.
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| CN113125128A (en) * | 2019-12-27 | 2021-07-16 | 旭化成医疗株式会社 | Concentrator test device |
| CN114515464A (en) * | 2020-11-17 | 2022-05-20 | 台湾积体电路制造股份有限公司 | Filter system and method for cleaning filter device |
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