CN110749625A - Radioactive gas online analysis integrated device - Google Patents
Radioactive gas online analysis integrated device Download PDFInfo
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- CN110749625A CN110749625A CN201911137461.2A CN201911137461A CN110749625A CN 110749625 A CN110749625 A CN 110749625A CN 201911137461 A CN201911137461 A CN 201911137461A CN 110749625 A CN110749625 A CN 110749625A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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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
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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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
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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
- G01N1/34—Purifying; Cleaning
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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
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
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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
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/74—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids
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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
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
- G01N2001/4088—Concentrating samples by other techniques involving separation of suspended solids filtration
Abstract
The invention belongs to the technical field of radioactive gas monitoring, and particularly relates to a radioactive gas online analysis integrated device. The system comprises an online hydrogen analyzer, an online oxygen analyzer, an electronic cooler, a fine filter, a coarse filter, a water collecting tank and a diaphragm pump, wherein the online hydrogen analyzer, the online oxygen analyzer, the electronic cooler, the fine filter, the coarse filter, the water collecting tank and the diaphragm pump are arranged in an integrated analysis cabinet, the online hydrogen analyzer is positioned at the top in the integrated analysis cabinet, the online oxygen analyzer is arranged below the online hydrogen analyzer, the fine filter and the coarse filter are arranged on the water collecting tank, the water collecting tank is connected with the electronic cooler through a nut clamping sleeve and is connected with the coarse filter through a flange, and the diaphragm pump is positioned at the bottom in the integrated analysis cabinet. The invention can solve the problem that the sampling from the negative pressure side of the process system cannot be normally carried out, and simultaneously can reasonably design the sample pipeline and intensively process important factors such as temperature, pressure, flow, system water vapor impurities and the like.
Description
Technical Field
The invention belongs to the technical field of radioactive gas monitoring, and particularly relates to a radioactive gas online analysis integrated device.
Background
A radioactive hydrogen combustion system is designed for a certain nuclear power station unit, and hydrogen and oxygen compounding is carried out on hydrogen-containing radioactive waste gas from a primary circuit water supply deaerator, a pressure stabilizer pressure relief box and an organized leakage groove under the working conditions of normal operation of a power station and expected operation events so as to achieve the purpose of reducing the hydrogen concentration.
In order to accurately monitor the concentration of hydrogen and oxygen in the system in real time, a thermal conductivity type hydrogen analyzer and a paramagnetic type oxygen analyzer are respectively arranged in front of and behind a hydrogen and oxygen recombiner of a hydrogen combustion system of a nuclear power station unit. The working principle of the thermal conductivity type hydrogen analyzer is that the thermal conductivity change of mixed gas is converted into the change of resistance of a thermistor according to the difference of the thermal conductivity of different gases. Because different types of thermal conductivity cells have different requirements on the pressure and stability of the sample gas, the heat transfer conditions of the thermal conductivity cell can be changed by liquid drops, dust, existence of impurities and the like in the sample gas, and therefore, the impurities such as the temperature, the pressure, the flow, the water vapor and the like of the sample gas can have great influence on the measurement of the instrument. The working principle of the paramagnetic oxygen analyzer is based on the paramagnetic relationship of Curie's law, and the volume magnetic susceptibility of oxygen is higher than that of common gas, so that the oxygen analyzer has extremely high paramagnetic property in a magnetic field. When the oxygen concentration changes, the ambient gas is constant, and the oxygen partial pressure in the measuring cell changes, so that the bridge current changes, and therefore, the temperature, the pressure and the flow of the sample gas are important factors influencing the measurement of the paramagnetic oxygen analyzer.
The online oxyhydrogen analyzer of the nuclear power station unit has the defects that the measurement deviation caused by the flow pressure fluctuation of a process system and the large moisture humidity of the system appears for many times in the operation process, and the defect amount is high. The online oxyhydrogen analyzer is distributed in the design initial stage according to the design and installation requirements of the analyzer, a process system is in a negative pressure state for a long time under the action of a compressor, the sample injection analysis of the analyzer under normal pressure cannot be guaranteed, the problems that a pipeline is long and complicated, the pressure flow is unstable, interference factors cannot be eliminated and the like are obvious, a large amount of maintenance cost is consumed, and the reliability of equipment cannot be guaranteed.
Disclosure of Invention
The technical problems solved by the invention are as follows:
the invention provides an online analysis integrated device for radioactive gas, which can solve the problem that the sampling from the negative pressure side of a process system cannot be normally performed, and can reasonably design a sample pipeline and intensively process important factors such as temperature, pressure, flow, system water vapor impurities and the like.
The technical scheme adopted by the invention is as follows:
the utility model provides a gaseous online analysis integrated device of radioactivity, including online hydrogen analyzer, online oxygen analyzer, the electronic cooler, fine filter, coarse filter, the jar that catchments, the diaphragm pump, online hydrogen analyzer, online oxygen analyzer, the electronic cooler, fine filter, coarse filter, the jar that catchments, the diaphragm pump is installed in integrated analysis cabinet, online hydrogen analyzer is located the top in integrated analysis cabinet, be provided with online oxygen analyzer below it, fine filter and coarse filter are installed on the jar that catchments, the diaphragm pump is located the bottom in integrated analysis cabinet.
The on-line hydrogen analyzer and the on-line oxygen analyzer are connected with other parts through stainless steel braided hoses, and the other parts are connected through nut clamping sleeves and stainless steel pipes.
The hydrogen analyzer further comprises a hydrogen analyzer inlet needle valve, an oxygen analyzer inlet needle valve, a hydrogen analyzer flow regulating valve, an oxygen analyzer flow regulating valve, a hydrogen analyzer pressure gauge, an oxygen analyzer pressure gauge, a main loop thermometer, a main loop inlet pressure gauge, a hydrogen analyzer outlet needle valve, an oxygen analyzer outlet needle valve, a main loop outlet pressure gauge, a bypass needle valve, an outlet ball valve and an outlet bypass ball valve.
The water collecting tank is connected with the electronic cooler through a nut sleeve and is connected with the coarse filter through a flange, a main loop thermometer and a main loop inlet pressure gauge are sequentially arranged on a pipeline connected with the electronic cooler, the other end of the pipeline is connected with three pipelines connected in parallel, a bypass needle valve is arranged on the first pipeline, a hydrogen analyzer inlet needle valve, a hydrogen analyzer flow regulating valve, a hydrogen analyzer pressure gauge, a fine filter, an online hydrogen analyzer and a hydrogen analyzer outlet needle valve are sequentially arranged on the second pipeline, and an oxygen analyzer inlet needle valve, an oxygen analyzer flow regulating valve, an oxygen analyzer pressure gauge, an online oxygen analyzer and an oxygen analyzer outlet needle valve are sequentially arranged on the third pipeline; the other ends of the three parallel pipelines are connected with the two parallel pipelines, an outlet bypass ball valve is arranged on the first pipeline, and a main loop outlet pressure gauge, a diaphragm pump and an outlet ball valve are sequentially arranged on the other pipeline.
The upper end of the water collection tank is provided with a sample gas inlet, the sample gas inlet is connected with a process system, the lower end of the water collection tank is provided with a condensed water outlet, and the condensed water outlet is connected with a plant drainage system.
And the top end of the coarse filter is connected with a sample gas outlet, and the sample gas outlet is connected with an inlet of the electronic cooler.
The fine filter is provided with a fine filter inlet and a fine filter outlet, the fine filter inlet is connected with a flow regulating valve of the hydrogen analyzer and an outlet public end of a pressure gauge of the hydrogen analyzer, and the fine filter outlet is connected with the on-line hydrogen analyzer.
The upper end of the liquid level indicator is connected with the water outlet of the fine filter and the upper part of the water collection tank body in a tee way, and the lower end of the liquid level indicator is connected with the lower part of the water collection tank body and used for judging the liquid level of cooling water in the water collection tank.
The invention has the beneficial effects that:
(1) according to the radioactive gas online analysis integrated device, the problem that normal sampling cannot be carried out from the negative pressure side of a process system is solved by additionally arranging the sampling diaphragm pump at the tail end of the sampling loop;
(2) according to the radioactive gas online analysis integrated device, the cooling and pressure reducing unit is reasonably configured, the design of two-stage dehumidification and filtration is adopted, the sampling pipeline is optimized, the purposes of temperature, pressure and flow regulation are achieved, and meanwhile the measurement influence of system water vapor impurities on the hydrogen analyzer is eliminated;
(3) the radioactive gas online analysis integrated device provided by the invention overcomes the defects of radioactive gas distributed sampling analysis on the measurement environment condition, and provides a successful example for solving the same type of problems in China in the future.
Drawings
FIG. 1 is a schematic structural diagram of an online radioactive gas analysis integrated apparatus according to the present invention;
FIG. 2 is a schematic diagram of an integrated online radioactive gas analysis device according to the present invention;
FIG. 3 is a schematic diagram of a two-stage dehumidification filter configuration;
in the figure: 1. an online hydrogen analyzer, 2, an online oxygen analyzer, 3, an electronic dehumidification cooler, 4, a fine filter, 5, a coarse filter, 6, a water collection tank, 7, a diaphragm pump, 8, a hydrogen analyzer inlet needle valve, 9, an oxygen analyzer inlet needle valve, 10, a hydrogen analyzer flow regulating valve, 11, an oxygen analyzer flow regulating valve, 12, a hydrogen analyzer pressure gauge, 13, an oxygen analyzer pressure gauge, 14, a main loop thermometer, 15, a main loop inlet pressure gauge, 16, a hydrogen analyzer outlet needle valve, 17, an oxygen analyzer outlet needle valve, 18, a main loop outlet pressure gauge, 19, a bypass needle valve, 20, an outlet ball valve, 21, an outlet bypass ball valve, 22, a sample gas inlet, 23, a condensed water outlet, 24, a sample gas outlet, 25, a fine filter inlet, 26, a fine filter outlet, and 27, a liquid level indicator.
Detailed Description
The present invention provides an integrated radioactive gas on-line analysis device, which is further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in FIG. 1, the invention provides an integrated device for online analysis of radioactive gas, comprising an online hydrogen analyzer 1, an online oxygen analyzer 2, an electronic cooler 3, a fine filter 4, a coarse filter 5, a water collection tank 6 and a diaphragm pump 7, an online hydrogen analyzer 1, an online oxygen analyzer 2, an electronic cooler 3, a fine filter 4, a coarse filter 5, a water collecting tank 6 and a diaphragm pump 7 are arranged in the integrated analysis cabinet, the online hydrogen analyzer 1 is positioned at the top in the integrated analysis cabinet, an on-line oxygen analyzer 2 is arranged below the integrated analysis cabinet, a fine filter 4 and a coarse filter 5 are arranged on a water collecting tank 6, a diaphragm pump 7 is positioned at the bottom in the integrated analysis cabinet, the online hydrogen analyzer 1 and the online oxygen analyzer 2 are connected with other parts through stainless steel braided hoses, and the other parts are connected in a nut clamping sleeve and stainless steel tube mode.
As shown in fig. 2, the radioactive gas online analysis integrated device provided by the present invention further includes a hydrogen analyzer inlet needle valve 8, an oxygen analyzer inlet needle valve 9, a hydrogen analyzer flow regulating valve 10, an oxygen analyzer flow regulating valve 11, a hydrogen analyzer pressure gauge 12, an oxygen analyzer pressure gauge 13, a main loop thermometer 14, a main loop inlet pressure gauge 15, a hydrogen analyzer outlet needle valve 16, an oxygen analyzer outlet needle valve 17, a main loop outlet pressure gauge 18, a bypass needle valve 19, an outlet ball valve 20, and an outlet bypass ball valve 21.
The water collecting tank 6 is connected with the electronic cooler 3 through a nut clamping sleeve and is connected with the coarse filter 5 through a flange. A main loop thermometer 14 and a main loop inlet pressure gauge 15 are sequentially arranged on the pipeline, the other end of the pipeline is connected with three pipelines connected in parallel, a bypass needle valve 19 is arranged on the first pipeline, a hydrogen analyzer inlet needle valve 9, a hydrogen analyzer flow regulating valve 11, a hydrogen analyzer pressure gauge 13, a fine filter 4, an online hydrogen analyzer 1 and a hydrogen analyzer outlet needle valve 16 are sequentially arranged on the second pipeline, and an oxygen analyzer inlet needle valve 8, an oxygen analyzer flow regulating valve 10, an oxygen analyzer pressure gauge 12, an online oxygen analyzer 2 and an oxygen analyzer outlet needle valve 17 are sequentially arranged on the third pipeline; the other ends of the three parallel pipelines are connected with the two parallel pipelines, an outlet bypass ball valve 21 is arranged on the first pipeline, and a main loop outlet pressure gauge 18, a diaphragm pump 7 and an outlet ball valve 20 are sequentially arranged on the other pipeline.
As shown in fig. 3, a sample gas inlet 22 is arranged at the upper end of the water collection tank 6, the sample gas inlet 22 is connected with a process system, a condensate outlet 23 is arranged at the lower end of the water collection tank 6, the condensate outlet 23 is connected with a factory building drainage system (condensate is discharged manually at regular intervals), a sample gas outlet 24 is connected to the top end of the coarse filter 5, the sample gas outlet 24 is connected with an inlet of the electronic cooler 3, a fine filter inlet 25 and a fine filter outlet 26 are arranged on the fine filter 4, the fine filter inlet 25 is connected with an outlet public end of the hydrogen analyzer flow regulating valve 11 and the hydrogen analyzer pressure gauge 13, the fine filter outlet 26 is connected with the online hydrogen analyzer 1, a water level indicator 27 is connected with a water outlet of the fine filter 4 and the upper part of the water collection tank 6 through a tee joint at the upper end thereof, and a lower.
The working principle of the invention is as follows:
sample gas from a process system is connected to a sample gas inlet of a water collecting tank 6 through a stainless steel pipe, filtered by a steel wire mesh medium coarse filter 5 and then enters an electronic cooler 3 for cooling, and the sample gas is divided into a hydrogen analyzer, an oxygen analyzer and a bypass exhaust three paths. Two paths entering the hydrogen analyzer and the oxygen analyzer sequentially pass through the needle valve, the flow regulating valve and the pressure gauge and then enter the analyzer for sample analysis, and an outlet of the analyzer is converged with a bypass and then discharged into a process pipeline through the diaphragm pump. Install fine filter 4 additional between hydrogen analyzer and manometer, carry out the second grade dehumidification to entering analysis appearance gas and filter (RH is less than or equal to 90%, 40 ℃), fine filter outlet is connected with water collection tank and level indicator, collects the radioactivity comdenstion water, and level indicator can the visual display water collection tank liquid level, makes things convenient for maintainer to discharge the condensate water in time.
The device is provided with a sampling diaphragm pump at the tail end of a main loop pipeline, so that sample gas is continuously extracted from the negative pressure side of the process system when the system is put into operation, and the sample gas is conveyed back to the process system after being analyzed by an instrument. A thermometer 14 and a pressure gauge 15 are arranged in the main loop, and the sample gas is adjusted to the required temperature (0-50 ℃) of the analyzer by an electronic cooler 3. The flow (30-90L/h) entering the analyzer is controlled by adjusting the flow regulating valves of the branches, and the pressure (80-110kPa) entering the analyzer is controlled by adjusting the needle valves of the branches, so as to achieve the aim of meeting the normal operation requirement of the analyzer.
When the process system is started, the upstream electrical control cabinet respectively starts the sampling diaphragm pump, the electronic cooler, the hydrogen analyzer and the oxygen analyzer for the radioactive gas online analysis integration device, adjusts the flow pressure entering the hydrogen analyzer to the optimal state meeting the requirements of the instrument, and the sample gas subjected to secondary dehumidification filtration enters the hydrogen analyzer, so that the instrument is in the optimal working condition state, the influence of the negative pressure and high humidity of the process system on the measurement of the instrument is eliminated, and the reliability and accuracy of the gas analyzer are greatly improved.
Claims (8)
1. An integrated device for on-line analysis of radioactive gas is characterized in that: including online hydrogen analysis appearance (1), online oxygen analysis appearance (2), electronic cooler (3), fine filter (4), coarse filter (5), jar (6) catchments, diaphragm pump (7), online hydrogen analysis appearance (1), online oxygen analysis appearance (2), electronic cooler (3), fine filter (4), coarse filter (5), jar (6) catchments, diaphragm pump (7) are installed in integrated analysis cabinet, online hydrogen analysis appearance (1) is located the top in integrated analysis cabinet, be provided with online oxygen analysis appearance (2) thereunder, install on jar (6) catchments fine filter (4) and coarse filter (5), diaphragm pump (7) are located the bottom in integrated analysis cabinet.
2. The integrated radioactive gas on-line analysis device according to claim 1, wherein: the online hydrogen analyzer (1) and the online oxygen analyzer (2) are connected with other parts through stainless steel braided hoses, and the other parts are connected through nut clamping sleeves and stainless steel pipes.
3. An integrated radioactive gas on-line analysis device according to claim 2, wherein: the hydrogen analyzer is characterized by further comprising a hydrogen analyzer inlet needle valve (8), an oxygen analyzer inlet needle valve (9), a hydrogen analyzer flow regulating valve (10), an oxygen analyzer flow regulating valve (11), a hydrogen analyzer pressure gauge (12), an oxygen analyzer pressure gauge (13), a main loop thermometer (14), a main loop inlet pressure gauge (15), a hydrogen analyzer outlet needle valve (16), an oxygen analyzer outlet needle valve (17), a main loop outlet pressure gauge (18), a bypass needle valve (19), an outlet ball valve (20) and an outlet bypass ball valve (21).
4. An integrated radioactive gas on-line analysis device according to claim 3, wherein: the water collecting tank (6) is connected with the electronic cooler (3) through a nut clamping sleeve and is connected with the coarse filter (5) through a flange, a main loop thermometer (14) and a main loop inlet pressure gauge (15) are sequentially arranged on a pipeline connected with the electronic cooler (3), the other end of the pipeline is connected with three pipelines connected in parallel, a bypass needle valve (19) is arranged on the first pipeline, a hydrogen analyzer inlet needle valve (9), a hydrogen analyzer flow regulating valve (11), a hydrogen analyzer pressure gauge (13), a fine filter (4), an online hydrogen analyzer (1) and a hydrogen analyzer outlet needle valve (16) are sequentially arranged on the second pipeline, an oxygen analyzer inlet needle valve (8), an oxygen analyzer flow regulating valve (10), an oxygen analyzer pressure gauge (12), an online oxygen analyzer (2), An oxygen analyzer outlet needle valve (17); the other ends of the three parallel pipelines are connected with the two parallel pipelines, an outlet bypass ball valve (21) is arranged on the first pipeline, and a main loop outlet pressure gauge (18), a diaphragm pump (7) and an outlet ball valve (20) are sequentially arranged on the other pipeline.
5. The integrated radioactive gas on-line analysis device according to claim 4, wherein: the utility model discloses a system for collecting water, including jar (6) that catchments, it is equipped with sample gas inlet (22) to catchment jar (6) upper end, and sample gas inlet (22) and process system are connected, and jar (6) lower extreme that catchments is equipped with comdenstion water export (23), and comdenstion water export (23) are connected with factory building drainage system.
6. The integrated radioactive gas on-line analysis device according to claim 5, wherein: the top end of the coarse filter (5) is connected with a sample gas outlet (24), and the sample gas outlet (24) is connected with an inlet of the electronic cooler (3).
7. The integrated radioactive gas on-line analysis device according to claim 6, wherein: the fine filter (4) is provided with a fine filter inlet (25) and a fine filter outlet (26), the fine filter inlet (25) is connected with the outlet public end of the hydrogen analyzer flow regulating valve (11) and the hydrogen analyzer pressure gauge (13), and the fine filter outlet (26) is connected with the online hydrogen analyzer (1).
8. The integrated radioactive gas on-line analysis device according to claim 7, wherein: the upper end of the liquid level indicator (27) is in three-way connection with the water outlet of the fine filter (4) and the upper part of the water collection tank (6), and the lower end of the liquid level indicator (27) is connected with the lower part of the water collection tank (6) for judging the liquid level of cooling water in the water collection tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911137461.2A CN110749625A (en) | 2019-11-19 | 2019-11-19 | Radioactive gas online analysis integrated device |
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| CN201911137461.2A CN110749625A (en) | 2019-11-19 | 2019-11-19 | Radioactive gas online analysis integrated device |
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| CN110749625A true CN110749625A (en) | 2020-02-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984855A (en) * | 2021-10-22 | 2022-01-28 | 福建福清核电有限公司 | Method and device for measuring concentration of target gas in radioactive waste gas |
| CN116559384A (en) * | 2023-07-10 | 2023-08-08 | 华能澜沧江水电股份有限公司 | Reservoir ambient gas monitoring device and reservoir ambient gas monitoring method |
-
2019
- 2019-11-19 CN CN201911137461.2A patent/CN110749625A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984855A (en) * | 2021-10-22 | 2022-01-28 | 福建福清核电有限公司 | Method and device for measuring concentration of target gas in radioactive waste gas |
| CN113984855B (en) * | 2021-10-22 | 2024-01-23 | 福建福清核电有限公司 | Method and device for measuring concentration of target gas in radioactive waste gas |
| CN116559384A (en) * | 2023-07-10 | 2023-08-08 | 华能澜沧江水电股份有限公司 | Reservoir ambient gas monitoring device and reservoir ambient gas monitoring method |
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