CN115078670B - Water vapor simulation test device and method for power plant - Google Patents
Water vapor simulation test device and method for power plant Download PDFInfo
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- CN115078670B CN115078670B CN202210674811.4A CN202210674811A CN115078670B CN 115078670 B CN115078670 B CN 115078670B CN 202210674811 A CN202210674811 A CN 202210674811A CN 115078670 B CN115078670 B CN 115078670B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 151
- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 238000004088 simulation Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title abstract description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 46
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000001301 oxygen Substances 0.000 claims abstract description 29
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 claims abstract description 26
- 239000000126 substance Substances 0.000 claims abstract description 26
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 23
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 238000011033 desalting Methods 0.000 claims description 20
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 12
- 239000001257 hydrogen Substances 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 239000005416 organic matter Substances 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- 229910052708 sodium Inorganic materials 0.000 claims description 11
- 239000011734 sodium Substances 0.000 claims description 11
- 238000009825 accumulation Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 238000006213 oxygenation reaction Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 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
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0073—Control unit therefor
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention discloses a water vapor simulation test device and a method for a power plant, wherein a desalted water tank is communicated with an inlet of a deoxidization system, and an outlet of the deoxidization system is communicated with the desalted water tank through a constant temperature device, a flowmeter and a desalted water preparation system; the outlet of the ammonia adding pump, the outlet of the oxygen adding pump and the outlet of the water quality regulating pump are communicated with a pipeline between the oxygen removing system and the constant temperature device; the online chemical instrument and the simulated water vapor outlet valve are communicated with a pipeline between the flowmeter and the desalted water preparation system; the control system is connected with the ammonia adding pump, the oxygen adding pump, the water quality regulating pump, the constant temperature device and the on-line chemical meter, and the system and the method can accurately simulate the water vapor of the power plant according to the characteristic and the change rule of the water vapor component of the water vapor circulating system of the power plant and continuously generate a test water sample.
Description
Technical Field
The invention belongs to the technical field of water vapor circulation systems of power plants, and relates to a water vapor simulation test device and method for a power plant.
Background
The steam is an important working medium for the operation of each thermodynamic device of the steam circulation system of the power plant, desalted water in the boiler is heated by fuel to generate steam with certain temperature and pressure, the steam pushes the steam turbine to rotate at high speed so as to drive the generator to generate power, and the steam after doing work is condensed into water so as to enter the steam circulation system again. In the process, in order to prevent various accidents such as corrosion, salt accumulation, pipe explosion and the like of the thermal equipment, the water vapor circulation system has extremely high requirements on the quality of water vapor, and particularly has indexes such as conductivity, hydrogen conductivity, pH, dissolved oxygen, sodium ions and the like of the water vapor. In order to research the influence and change rule of the water vapor substance of the water vapor circulation system on the corrosion, salt accumulation and pipe explosion conditions of all thermal equipment, related experimental research is needed for water vapor of a power plant. Because the main component of the water vapor of the power plant is desalted water containing a small amount of ammonia, a certain amount of dissolved oxygen and trace-level impurity ions, the water vapor is difficult to simulate and prepare manually, and the difficulty in carrying out the test is great.
Therefore, if the device and the method for simulating the water vapor of the power plant can be researched according to the characteristics and the change rule of the water vapor components of the water vapor circulation system of the power plant, the water vapor of the power plant can be accurately simulated, a test water sample can be continuously generated, the difficult problem that the related test research of the water vapor of the power plant is difficult to develop can be thoroughly solved, a test infrastructure is provided for the power plant to research the influence and the change rule of the water vapor components of the water vapor circulation system on the corrosion, salt accumulation and pipe explosion conditions of various thermal equipment, and the device and the method have important significance for safe and economic operation of the power plant.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a device and a method for simulating water vapor of a power plant, which can accurately simulate the water vapor of the power plant according to the characteristics and the change rule of the water vapor component of a water vapor circulation system of the power plant and continuously generate a test water sample.
In order to achieve the aim, the water vapor simulation test device of the power plant comprises a desalting water tank, an deoxidizing system, an ammonia adding pump, an oxygen adding pump, a water quality adjusting pump, a constant temperature device, a flowmeter, an online chemical instrument, a simulated water vapor outlet valve and a desalted water preparation system;
the desalting water tank is communicated with the inlet of the deoxidizing system, and the outlet of the deoxidizing system is communicated with the desalting water tank through a constant temperature device, a flowmeter and a desalting water preparation system;
The outlet of the ammonia adding pump, the outlet of the oxygen adding pump and the outlet of the water quality regulating pump are communicated with a pipeline between the oxygen removing system and the constant temperature device;
the online chemical instrument and the simulated water vapor outlet valve are communicated with a pipeline between the flowmeter and the desalted water preparation system;
the control system is connected with an ammonia adding pump, an oxygen adding pump, a water quality adjusting pump, a constant temperature device and an on-line chemical instrument.
The on-line chemical instrument is one or a combination of a plurality of on-line conductivity meter, on-line hydrogen conductivity meter, on-line pH meter, on-line sodium meter, on-line silicon meter, on-line iron meter and on-line organic matter analyzer.
The desalting water tank is communicated with an inlet of the deoxidizing system through a system pump.
The pH is regulated by an ammonia adding pump, the oxygen content is regulated by an oxygen adding pump, and one or more of hydrogen conductivity, sodium content, silicon content, iron content and organic matter content are regulated by a water quality regulating pump.
The outlet of the deoxidizing system is communicated with a desalting water tank through a reflux valve.
The water vapor simulation test method of the power plant comprises the following steps:
The desalted water in the desalted water tank enters the deoxidizing system to deoxidize, then one or more of the combined components of hydrogen conductivity, sodium content, silicon content, iron content and organic matter content are regulated by the ammonia adding pump, the oxygen adding pump and the water quality regulating pump in sequence, then the temperature is kept to a preset temperature by the constant temperature device, the water quality of the simulated water vapor is monitored by the flowmeter and the on-line chemical instrument, and finally the water is divided into two paths, wherein one path is output outwards through the simulated water vapor outlet valve, and the other path returns to the desalted water tank after the desalting water is carried out by the desalted water preparing system.
The control system controls the dosing amount of the ammonia adding pump, the oxygen adding pump and the water quality regulating pump according to the measured value of the online chemical instrument, and simultaneously controls the constant temperature device according to the set temperature value to prepare the simulated water vapor with different temperatures and different components.
The outlet of the deoxidizing system is communicated with the desalted water tank through a reflux valve, and the flow of the simulated water vapor is regulated through the reflux valve.
The invention has the following beneficial effects:
When the water vapor simulation test device and method for the power plant are specifically operated, desalted water in the desalted water tank is subjected to deoxygenation, pH adjustment, oxygen content adjustment by the oxygenation pump and one or more of combined components of hydrogen conductivity, sodium content, silicon content, iron content and organic matter content adjustment by the water quality adjustment pump, and then the temperature is kept to a preset temperature, and meanwhile, the simulated water vapor parameters of the power plant are adjusted according to the measured value of an online chemical instrument, so that the water vapor of the power plant is accurately simulated according to the characteristics and the change rule of the water vapor component of the water vapor circulation system of the power plant, a test water sample is continuously generated, and a test infrastructure is provided for the power plant to study the influence and the change rule of the water vapor substance of the water vapor circulation system on corrosion, salt accumulation and pipe explosion conditions of various thermal equipment. Meanwhile, the invention also realizes the cyclic utilization of water vapor in the system, has no discharge of any waste water and waste liquid, and has remarkable environmental protection benefit.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Wherein, 1 is a desalting water tank, 2 is a system pump, 3 is an deoxidizing system, 4 is a reflux valve, 5 is an ammonia adding pump, 6 is an oxygenation pump, 7 is a water quality adjusting pump, 8 is a constant temperature device, 9 is a flowmeter, 10 is an on-line chemical instrument, 11 is an analog water vapor outlet valve, 12 is a desalting water preparing system, and 13 is a control system.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, but not intended to limit the scope of the present disclosure. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
In the accompanying drawings, there is shown a schematic structural diagram in accordance with a disclosed embodiment of the invention. The figures are not drawn to scale, wherein certain details are exaggerated for clarity of presentation and may have been omitted. The shapes of the various regions, layers and their relative sizes, positional relationships shown in the drawings are merely exemplary, may in practice deviate due to manufacturing tolerances or technical limitations, and one skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions as actually required.
Referring to fig. 1, the water vapor simulation test device of the power plant comprises a desalting water tank 1, a system pump 2, a deoxidizing system 3, a reflux valve 4, an ammonia adding pump 5, an oxygen adding pump 6, a water quality adjusting pump 7, a constant temperature device 8, a flowmeter 9, an online chemical instrument 10, a simulated water vapor outlet valve 11 and a desalting water preparation system 12;
The desalting water tank 1 is communicated with an inlet of the deoxidizing system 3 through the system pump 2, and an outlet of the deoxidizing system 3 is divided into two paths, wherein one path is communicated with the desalting water tank 1 through the reflux valve 4, and the other path is communicated with the desalting water tank 1 through the constant temperature device 8, the flowmeter 9 and the desalting water preparation system 12.
The outlet of the ammonia adding pump 5, the outlet of the oxygen adding pump 6 and the outlet of the water quality regulating pump 7 are communicated with the pipelines between the deoxidizing system 3 and the constant temperature device 8, the pH value is regulated by the ammonia adding pump 5, the oxygen content is regulated by the oxygen adding pump 6, and one or more of the hydrogen conductivity, the sodium content, the silicon content, the iron content and the organic matter content are regulated by the water quality regulating pump 7.
The online chemical instrument 10 and the simulated water vapor outlet valve 11 are communicated with the pipeline between the flowmeter 9 and the desalted water preparation system 12, wherein the online chemical instrument 10 is one or more of an online conductivity meter, an online hydrogen conductivity meter, an online pH meter, an online sodium meter, an online silicon meter, an online iron meter and an online organic matter analyzer and is used for monitoring the quality of the simulated water vapor; the simulated water vapor is output outwards through the simulated water vapor outlet valve 11, and continuous simulated water vapor is provided for other tests.
The control system 13 is connected with the ammonia adding pump 5, the oxygenation pump 6, the water quality regulating pump 7, the constant temperature device 8 and the on-line chemical instrument 10, and controls the dosage of the ammonia adding pump 5, the oxygenation pump 6 and the water quality regulating pump 7 according to the measured value of the on-line chemical instrument 10; the constant temperature device 8 is controlled according to the set temperature value, and the simulated water vapor is controlled under the set water quality condition and temperature.
The specific working process of the invention is as follows:
The desalted water in the desalted water tank 1 enters the deoxidizing system 3 through the system pump 2 to deoxidize, so as to obtain desalted deoxidized water, wherein the desalted deoxidized water is divided into two paths, one path of desalted deoxidized water flows back into the desalted water tank 1 through the reflux valve 4, the flow of the simulated water vapor is realized by adjusting the opening of the reflux valve 4, and the larger the opening of the reflux valve 4 is, the smaller the flow of the simulated water vapor is; the other path is sequentially regulated by an ammonia adding pump 5 to regulate the pH value, an oxygen adding pump 6 to regulate the oxygen content and a water quality regulating pump 7 to regulate the hydrogen conductivity, the sodium content, the silicon content, the iron content and the organic matter content, then the temperature is kept to a preset temperature by a constant temperature device 8, the simulated water vapor quality is monitored by a flowmeter 9 and an on-line chemical instrument 10, and finally the water is divided into two paths, wherein one path is externally output by a simulated water vapor outlet valve 11 to provide continuous simulated water vapor for other tests, and the other path is returned to a desalted water tank 1 after being desalted by a desalted water preparation system 12.
Wherein the online chemical meter 10 is one or more of an online conductivity meter, an online hydrogen conductivity meter, an online pH meter, an online sodium meter, an online silicon meter, an online iron meter and an online organic matter analyzer, and the control system 13 controls the dosing amount of the ammonia adding pump 5, the oxygen adding pump 6 and the water quality regulating pump 7 according to the measured value of the online chemical meter 10; the constant temperature device 8 is controlled according to the set temperature value, so that simulated water vapor with different temperatures and different components is prepared.
Claims (1)
1. The water vapor simulation test device for the power plant is characterized by comprising a desalting water tank (1), an deoxidizing system (3), an ammonia adding pump (5), an oxygen adding pump (6), a water quality adjusting pump (7), a constant temperature device (8), a flowmeter (9), an online chemical instrument (10), a simulated water vapor outlet valve (11) and a desalted water preparation system (12);
The desalting water tank (1) is communicated with an inlet of the deoxidizing system (3), and an outlet of the deoxidizing system (3) is communicated with the desalting water tank (1) through a constant temperature device (8), a flowmeter (9) and a desalting water preparation system (12);
The outlet of the ammonia adding pump (5), the outlet of the oxygen adding pump (6) and the outlet of the water quality regulating pump (7) are communicated with a pipeline between the oxygen removing system (3) and the constant temperature device (8);
The online chemical instrument (10) and the simulated water vapor outlet valve (11) are communicated with a pipeline between the flowmeter (9) and the desalted water preparation system (12);
The control system (13) is connected with the ammonia adding pump (5), the oxygen adding pump (6), the water quality adjusting pump (7), the constant temperature device (8) and the on-line chemical instrument (10);
The on-line chemical instrument (10) is one or a combination of a plurality of on-line conductivity meter, on-line hydrogen conductivity meter, on-line pH meter, on-line sodium meter, on-line silicon meter, on-line iron meter and on-line organic matter analyzer;
adjusting the pH value through an ammonia adding pump (5), adjusting the oxygen content through an oxygen adding pump (6), and adjusting one or more of hydrogen conductivity, sodium content, silicon content, iron content and organic matter content through a water quality adjusting pump (7);
The desalting water tank (1) is communicated with an inlet of the deoxidizing system (3) through a system pump (2);
the outlet of the deoxidizing system (3) is communicated with the desalted water tank (1) through a reflux valve (4);
When the system works, desalted water in a desalted water tank (1) enters a deoxidizing system (3) to deoxidize, then one or more of the components including hydrogen conductivity, sodium content, silicon content, iron content and organic matter content are sequentially regulated by an ammonia adding pump (5), an oxygen adding pump (6) and a water quality regulating pump (7), then the temperature is kept to a preset temperature by a constant temperature device (8), the water quality of simulated water vapor is monitored by a flowmeter (9) and an online chemical instrument (10), and finally the system is divided into two paths, wherein one path is output outwards by a simulated water vapor outlet valve (11), and the other path is returned to the desalted water tank (1) after the other path is desalted by a desalted water preparation system (12);
the control system (13) controls the dosing amount of the ammonia adding pump (5), the oxygen adding pump (6) and the water quality regulating pump (7) according to the measured value of the online chemical instrument (10), and simultaneously controls the constant temperature device (8) according to the set temperature value so as to prepare simulated water vapor with different temperatures and different components;
The outlet of the deoxidizing system (3) is communicated with the desalted water tank (1) through a reflux valve (4), and the flow of the simulated water vapor is regulated through the reflux valve (4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210674811.4A CN115078670B (en) | 2022-06-15 | 2022-06-15 | Water vapor simulation test device and method for power plant |
| PCT/CN2022/136151 WO2023240942A1 (en) | 2022-06-15 | 2022-12-02 | Power plant water vapor simulation test device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210674811.4A CN115078670B (en) | 2022-06-15 | 2022-06-15 | Water vapor simulation test device and method for power plant |
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| CN115078670A CN115078670A (en) | 2022-09-20 |
| CN115078670B true CN115078670B (en) | 2024-05-31 |
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| CN115078670B (en) * | 2022-06-15 | 2024-05-31 | 西安热工研究院有限公司 | Water vapor simulation test device and method for power plant |
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| CN111257375A (en) * | 2020-03-23 | 2020-06-09 | 西安热工研究院有限公司 | Device and method for testing temperature compensation coefficient of solution conductivity/solution hydrogen conductivity |
| CN112129909A (en) * | 2020-09-30 | 2020-12-25 | 广东核电合营有限公司 | Power plant water quality on-line instrument evaluation test device and test method |
| CN113149266A (en) * | 2021-03-19 | 2021-07-23 | 西安热工研究院有限公司 | Intelligent chemical dosing system and dosing method |
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| CN115078670A (en) | 2022-09-20 |
| WO2023240942A1 (en) | 2023-12-21 |
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