CN104459043A - Device and method for calibrating humidity probe of hydrogen supply system of electric generator of nuclear power station - Google Patents
Device and method for calibrating humidity probe of hydrogen supply system of electric generator of nuclear power station Download PDFInfo
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- CN104459043A CN104459043A CN201410708068.5A CN201410708068A CN104459043A CN 104459043 A CN104459043 A CN 104459043A CN 201410708068 A CN201410708068 A CN 201410708068A CN 104459043 A CN104459043 A CN 104459043A
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Abstract
The invention relates to a device and a method for calibrating a humidity probe of a hydrogen supply system of an electric generator of a nuclear power station. The calibration device comprises an external leakage type water permeation tube humidity generator, a humidity probe bin, a first precision dew-point hygrometer connected with the external leakage type water permeation tube humidity generator, a shunting type humidity generator internally provided with a humidity probe, a second precision dew-point hygrometer arranged in the shunting type humidity generator as well as a humidity probe data display connected with the humidity probe and used for displaying test data of the humidity probe, wherein the humidity probe bin is connected with the external leakage type water permeation tube humidity generator, and the humidity probe is inserted into the humidity probe bin. On the one hand, the external leakage type water permeation tube humidity generator and the shunting type humidity generator are utilized to provide a low humidity source and a high humidity source respectively, and environmental supply in the overall range is realized by the humidity probe through matching of the two generators; and on the other hand, by means of the corresponding relation between the humidity probe data display and the precision dew-point hygrometers, the corresponding relation between an MH value and a dew-point value of the humidity probe test can be determined, so that the humidity probe is calibrated.
Description
Technical field
The present invention relates to a kind of calibrating installation, be specifically related to a kind of calibrating installation and calibration steps of generator of nuclear power station hydrogen supply system moisture probe.
Background technology
Nuclear power station be utilize nuclear fission or nuclear fusion reaction to discharge energy produce the generating plant of electric energy.Nuclear plant in current business running utilizes nuclear fission react and generate electricity.Nuclear power station is generally divided into two parts: utilize nuclear fission produce the nuclear island (comprising reactor assembly and primary Ioops system) of steam and utilize the conventional island of steam-electric power (comprising steam turbine generator system), the fuel of use is generally radioactivity heavy metal: uranium, plutonium.It and thermal power generation are extremely similar, just replace the boiler of thermal power generation with nuclear reactor and steam generator, with the chemical energy of nuclear fission energy proxy mineral fuel.Except boiling-water reactor (water-water reactor of taking a favourable turn), the power reactor of other types is all that the cooling medium of primary Ioops is heated by pile core, in a vapor generator heat is passed to the water in secondary circuit or three loops, then forms Steam Actuation turbodynamo.The rotating speed of Turbo-generator Set is very high, is approximately 3000 revs/min, is to reduce centrifugal force, so its generator designs becomes diameter short and appearance that axial length is very long.Because length is oversize, the heat in the middle part of generator not easily sheds, so need special generator cooling system.Hydrogen_cooling is adopted to be that cooling effect is better than air, and hydrogen proportion lta is many, can reduce cooling fan power because the heat absorptivity of hydrogen is good.
Existing moisture probe is due to the difference of manufacturer, and it has different relative parameters; And its output is MH value (intermediate variable, without physical significance), user can not obtain the numerical value that can use or be of practical significance thus.Therefore need to correct it, make it to export dew point value.
Summary of the invention
The present invention seeks to the calibrating installation that a kind of generator of nuclear power station hydrogen supply system moisture probe is provided to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution used in the present invention is: a kind of calibrating installation of generator of nuclear power station hydrogen supply system moisture probe, for calibrating moisture probe, it comprises the formula water permeation pipe humidity generator that exosmoses for providing low humidity source to moisture probe, be connected with the described formula water permeation pipe humidity generator that exosmoses and be inserted with the moisture probe storehouse of described moisture probe, the first precise dew-point hygrometer be connected for measuring dew point value with the described formula water permeation pipe humidity generator that exosmoses, built-in described moisture probe be used for its provide low humidity source shunting humidity generator, be built in described shunting humidity generator for measuring the second precise dew-point hygrometer of dew point value, the moisture probe data display equipment be connected with described moisture probe for showing its test data.
Optimally, it also comprises and being connected with described first precise dew-point hygrometer, described second precise dew-point hygrometer and described moisture probe data display equipment respectively for recording its data and forming the data processor of calibration equation.
Optimally, the dew point of formula of exosmosing described in water permeation pipe humidity generator is-50 DEG C ~-20 DEG C.
Optimally, the dew point of described shunting humidity generator is-10 DEG C ~ 40 DEG C.
Another object of the present invention is to provide a kind of calibration steps of generator of nuclear power station hydrogen supply system moisture probe, and it comprises the following steps:
A () the formula water permeation pipe humidity generator that will exosmose is connected with moisture probe storehouse, the first precise dew-point hygrometer respectively, and be plugged in moisture probe storehouse by the moisture probe being connected with moisture probe data display equipment;
B () starts the formula water permeation pipe humidity generator that exosmoses provides the environment of the different humidity in its range ability, and MH value when moisture probe data display equipment and the first precise dew-point hygrometer then show varying environment respectively and dew point value are gone forward side by side line item;
C the moisture probe be plugged in moisture probe storehouse is extracted by (), be placed in shunting humidity generator together with the second precise dew-point hygrometer;
D () starts shunting humidity generator provides the environment of the different humidity in its range ability, and MH value when moisture probe data display equipment and the second precise dew-point hygrometer then show varying environment respectively and dew point value are gone forward side by side line item;
E the corresponding MH value of record and dew point value are formed calibration equation by ().
Optimally, in described step (e), the calibration equation formed is inputted in moisture probe data display equipment.
Further, in described step (a), the first precise dew-point hygrometer, moisture probe data display equipment are connected with data processor respectively, in described step (c), the second precise dew-point hygrometer is connected with data processor, with data processor, corresponding MH value and dew point value is formed calibration equation and input in moisture probe data display equipment in described step (e).
Because technique scheme is used, the present invention compared with prior art has following advantages: the calibrating installation of generator of nuclear power station hydrogen supply system moisture probe of the present invention, one side utilizes the formula water permeation pipe humidity generator that exosmoses, shunting humidity generator provides low humidity source, high humidity source respectively, utilizes their environmental supply provided in the whole range ability of moisture probe that cooperatively interacts; Utilize the corresponding relation between moisture probe data display equipment, precise dew-point hygrometer on the other hand, the corresponding relation of the MH value that moisture probe is tested and dew point value can be determined, thus it is calibrated.
Accompanying drawing explanation
Accompanying drawing 1 is the connection diagram of the calibrating installation of generator of nuclear power station hydrogen supply system moisture probe of the present invention;
Wherein: formula of 1, exosmosing water permeation pipe humidity generator; 2, moisture probe storehouse; 3, the first precise dew-point hygrometer; 4, moisture probe is calibrated; 5, shunting humidity generator; 6, the second precise dew-point hygrometer; 7, moisture probe data display equipment; 8, data processor.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiment of the invention is described in detail:
The calibrating installation of generator of nuclear power station hydrogen supply system moisture probe as shown in Figure 1, for calibrating moisture probe 4, mainly comprises exosmose formula water permeation pipe humidity generator 1, moisture probe storehouse 2, first precise dew-point hygrometer 3 and shunting humidity generator.
Wherein, formula of exosmosing water permeation pipe humidity generator 1, for providing low humidity source to moisture probe 4, namely provides the external environment condition (temperature and humidity match) compared with low humidity to moisture probe 4; Moisture probe storehouse 2 is connected with the formula water permeation pipe humidity generator 1 that exosmoses, and its side is provided with multiple jack matched with moisture probe 4, for inserting moisture probe 4; First precise dew-point hygrometer 3 is connected with the formula water permeation pipe humidity generator 1 that exosmoses.Like this when moisture probe 4 to be calibrated is inserted in moisture probe storehouse 2, according to the different humidity environment that the formula water permeation pipe humidity generator 1 that exosmoses provides, first precise dew-point hygrometer 3 accurately can be measured it and show corresponding dew point value, and moisture probe 4 output valve corresponding with these dew point value can be shown with the moisture probe data display equipment 7 that moisture probe 4 is connected, i.e. MH value.
After treating that moisture probe 4 is measured in low humidity source, it is pulled up from moisture probe storehouse 2, shunting humidity generator 5 is placed in together with the second precise dew-point hygrometer 6, the i.e. built-in moisture probe 4 of shunting humidity generator 5 and the second precise dew-point hygrometer 6, moisture probe 4 is connected with the moisture probe data display equipment 7 of shunting humidity generator 5 outside by lead-in wire.Utilize shunting humidity generator 5 to provide high humidity source to moisture probe 4 like this, namely provide the external environment condition of higher levels of humidity (temperature and humidity match) to moisture probe 4; Second precise dew-point hygrometer 6 accurately can be measured this high humidity environment and show corresponding dew point value, the MH value that moisture probe data display equipment 7 display is corresponding with these dew point value.
Above-mentioned dew point value and MH value are carried out analyze the rear calibration equation forming correspondence, and be recorded in moisture probe data display equipment 7, like this when moisture probe 4 is for measuring generator of nuclear power station hydrogen supply system humidity, just directly show corresponding dew point value by moisture probe data display equipment 7.
In the present embodiment, above-mentioned calibrating installation also comprises data processor 8, it is connected for recording its data and forming calibration equation with the first precise dew-point hygrometer 3, second precise dew-point hygrometer 6 with moisture probe data display equipment 7 respectively, and Formula Input Technology will be calibrated in moisture probe data display equipment 7, effectively can improve the data processing speed of calibrating installation like this, thus reduce its measurement reaction time.The dew point of formula of exosmosing water permeation pipe humidity generator 1 is-50 DEG C ~-20 DEG C.The dew point of shunting humidity generator 5 is-10 DEG C ~ 40 DEG C.First precise dew-point hygrometer 3 and the second precise dew-point hygrometer 6 can be identical dew point hygrometers, also can be different dew point hygrometers.
In order to coordinate above-mentioned calibrating installation, generator of nuclear power station hydrogen supply system moisture probe is calibrated, need calibration steps corresponding below using, comprise the following steps: formula of exosmosing water permeation pipe humidity generator 1 is connected with moisture probe storehouse 2, first precise dew-point hygrometer 3 respectively, and is plugged in moisture probe storehouse 2 by the moisture probe 4 being connected with moisture probe data display equipment 7; Start the formula water permeation pipe humidity generator 1 that exosmoses, setting its calibration point needed (can from-50 DEG C to-20 DEG C operation, namely from low humidity, and be the different humidity environment exosmosed in formula water permeation pipe humidity generator 1 range ability, such as-50 DEG C ,-40 DEG C ,-30 DEG C ,-20 DEG C; Because temperature and humidity matches, can be that moisture probe 4 is in different dew point value according to the difference of temperature and humidity), MH value when moisture probe data display equipment 7 and the first precise dew-point hygrometer 3 show varying environment respectively and dew point value, and MH value and dew point value correspondence are carried out record;
Subsequently the moisture probe 4 be plugged in moisture probe storehouse 2 is extracted, shunting humidity generator 5 is placed in together with the second precise dew-point hygrometer 6, starting shunting humidity generator 5 provides humidity environment in its range ability (from-10 DEG C to 40 DEG C operations, namely from low humidity,), MH value when moisture probe data display equipment 7 and the second precise dew-point hygrometer 6 show varying environment respectively and dew point value, and MH value and dew point value correspondence are carried out record;
Finally the corresponding MH value of record and dew point value are formed calibration equation, and inputted in moisture probe data display equipment.In order to improve the speed of calibration, first precise dew-point hygrometer 3, moisture probe data display equipment 7 can be connected with data processor 8 respectively and the second precise dew-point hygrometer 6 is connected with data processor 8, the data storing that can the first precise dew-point hygrometer 3, moisture probe data display equipment 7, second precise dew-point hygrometer 6 be obtained in time is like this in data processor 8, and utilize data processor 8 that these data are formed calibration equation, input in moisture probe data display equipment 7 subsequently.
It should be noted that the data that the first precise dew-point hygrometer 3, second precise dew-point hygrometer 6 detects are not often round valuess, therefore need to select this round values adjacent two to obtain this round values by linear relationship.Such as, when calibration dew point value is 10 DEG C, by the configuration of temperature, relative humidity, obtaining measurement standard dew point value is 9.8 DEG C and 10.1 DEG C, and with 9.8 DEG C, 10.1 DEG C corresponding MH values, utilize linear relationship to obtain being calibrated the MH value of moisture probe 4 at standard dew point value is 10 DEG C subsequently.Concrete condition is in table 1, wherein, measured data is the first precise dew-point hygrometer 3, the dew point value that second precise dew-point hygrometer 6 and moisture probe data display equipment 7 record and MH value, the data recorded due to the first precise dew-point hygrometer 3 or the second precise dew-point hygrometer 6 are not often round valuess, therefore (-50 DEG C what select is-53.4 DEG C and-52.6 DEG C to need to select two adjacent points to carry out measuring near this round values,-40 DEG C what select is-39.8 DEG C and-39.3 DEG C etc.), utilizing linear relationship to obtain dew point value integer-valued MH value, (MH value corresponding when-50 DEG C is 0.2938, MH value corresponding when-40 DEG C is 0.3128).
Table 1 label is the correction data of two kinds of different humidity probes of 342409-PR and 444742-PR
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. the calibrating installation of a generator of nuclear power station hydrogen supply system moisture probe, for calibrating moisture probe (4), it is characterized in that: it comprises formula water permeation pipe humidity generator (1) that exosmoses for providing low humidity source to moisture probe (4), be connected with described formula water permeation pipe humidity generator (1) that exosmoses and be inserted with the moisture probe storehouse (2) of described moisture probe (4), be connected with described formula water permeation pipe humidity generator (1) that exosmoses the first precise dew-point hygrometer (3) for measuring dew point value, built-in described moisture probe (4) for provide to it low humidity source shunting humidity generator (5), be built in described shunting humidity generator (5) for measuring second precise dew-point hygrometer (6) of dew point value, the moisture probe data display equipment (7) be connected with described moisture probe (4) for showing its test data.
2. the calibrating installation of generator of nuclear power station hydrogen supply system moisture probe according to claim 1, is characterized in that: it also comprises and being connected with described first precise dew-point hygrometer (3), described second precise dew-point hygrometer (6) and described moisture probe data display equipment (7) respectively for recording its data and forming the data processor (8) of calibration equation.
3. the calibrating installation of generator of nuclear power station hydrogen supply system moisture probe according to claim 1, is characterized in that: described in the exosmose dew point of formula water permeation pipe humidity generator (1) be-50 DEG C ~-20 DEG C.
4. the calibrating installation of generator of nuclear power station hydrogen supply system moisture probe according to claim 1, is characterized in that: the dew point of described shunting humidity generator (5) is-10 DEG C ~ 40 DEG C.
5. a calibration steps for generator of nuclear power station hydrogen supply system moisture probe, it is characterized in that, it comprises the following steps:
A () the formula water permeation pipe humidity generator that will exosmose is connected with moisture probe storehouse, the first precise dew-point hygrometer respectively, and be plugged in moisture probe storehouse by the moisture probe being connected with moisture probe data display equipment;
B () starts the formula water permeation pipe humidity generator that exosmoses provides the environment of the different humidity in its range ability, and MH value when moisture probe data display equipment and the first precise dew-point hygrometer then show varying environment respectively and dew point value are gone forward side by side line item;
C the moisture probe be plugged in moisture probe storehouse is extracted by (), be placed in shunting humidity generator together with the second precise dew-point hygrometer;
D () starts shunting humidity generator provides the environment of the different humidity in its range ability, and MH value when moisture probe data display equipment and the second precise dew-point hygrometer then show varying environment respectively and dew point value are gone forward side by side line item;
E the corresponding MH value of record and dew point value are formed calibration equation by ().
6. the calibration steps of generator of nuclear power station hydrogen supply system moisture probe according to claim 5, is characterized in that: in described step (e), is inputted in moisture probe data display equipment by the calibration equation formed.
7. the calibration steps of generator of nuclear power station hydrogen supply system moisture probe according to claim 6, it is characterized in that: in described step (a), the first precise dew-point hygrometer, moisture probe data display equipment are connected with data processor respectively, in described step (c), the second precise dew-point hygrometer is connected with data processor, with data processor, corresponding MH value and dew point value is formed calibration equation and input in moisture probe data display equipment in described step (e).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2627280C2 (en) * | 2015-10-26 | 2017-08-04 | Открытое акционерное общество "Севернефтегазпром" | Method of hygrometer calibrating and checking |
| CN111198205A (en) * | 2018-11-20 | 2020-05-26 | 诚田自动化仪表（上海）有限公司 | Dew point sensor's test system |
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| CN111198205A (en) * | 2018-11-20 | 2020-05-26 | 诚田自动化仪表（上海）有限公司 | Dew point sensor's test system |
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| CN104459043B (en) | 2016-02-03 |
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