CN206114161U - Nuclear power pressure sensing system - Google Patents
Nuclear power pressure sensing system Download PDFInfo
- Publication number
- CN206114161U CN206114161U CN201621116110.5U CN201621116110U CN206114161U CN 206114161 U CN206114161 U CN 206114161U CN 201621116110 U CN201621116110 U CN 201621116110U CN 206114161 U CN206114161 U CN 206114161U
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- pressure
- signal
- unit
- nuclear power
- fiber grating
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Abstract
The utility model relates to a nuclear power field, concretely relates to nuclear power pressure sensing system, including a plurality of be used for pressure measurement pressure sensor, connect in a plurality of pressure sensor be used for the signal demodulation the signal demodulation ware, connect the pressure assay appearance that is used for system pressure assay in the signal demodulation ware, pressure sensor includes the casing, be used for the laser generation unit of output beam, be used for surveying the wave length change light signal pressure fiber grating, be used for receiving the output beam and transfer pressure fiber grating the coupling unit, be used for mediating the unit to the grating that pressure fiber grating carries out automatic temperature compensating and self -calibration, laser generation unit, pressure fiber grating, coupling unit, grating mediation unit all set up inside the casing. The utility model discloses high temperature resistant, high pressure resistant, the radioresistance can the reinforce, measurement accuracy is high, be applicable to the nuclear power field.
Description
Technical field
This utility model is related to nuclear power field, more particularly to nuclear power pressure capsule system.
Background technology
Working environment residing for nuclear power field is due to characteristics such as high radiation, high temperature, high pressure, being to ensure under the conditions of special type
Energy normal work, therefore various kinds of equipment is required higher.
Pressure transducer is that nuclear power field is used to detect the common equipment of pressure that conventional pressure transducer to have：Resistance should
Become sensor, inductance type transducer, capacitance type sensor, piezoelectric transducer etc., these sensor applications are deposited in nuclear power field
In following shortcoming：A, sensing element adopt electric signal output, easily cause electrical and electromagnetic interference, and certainty of measurement is low；B, signal
Process circuit is complicated, and cost is high；C, need to realize for each sensor feed circuit it is difficult；D, some sensitive materials are non-moistureproof, nothing
Method is applied to the larger occasion of humidity；E, sensing unit are more, and electrode, lead are complicated, cause sensor ratio heavier；F, sensitivity
Element, telegraph circuit, elastomeric material in high temperature, high pressure, high corrosion, the nuclear power Special complex environment of high radiation reliability and
Cannot change in time after life-span substantially reduces, and the particularity of nuclear power working environment result in sensor failure；G, elastomer knot
Structure can not meet nuclear power robot small volume, light weight, impact-resistant use requirement.
Utility model content
To solve the above problems, a kind of high temperature resistant of this utility model offer, high pressure resistant, capability of resistance to radiation are strong, certainty of measurement
It is high, suitable for the nuclear power pressure capsule system of nuclear power field.
The technical scheme adopted by this utility model is：Nuclear power pressure capsule system, including several are for piezometry
Pressure transducer, be connected to several pressure transducers for signal demodulation demodulator of PM signal PM, be connected to demodulator of PM signal PM
For the pressure analysis instrument of system pressure analysis；It is single that the pressure transducer includes that housing, the laser for output beam occur
Unit, the pressure fiber grating for detecting wavelength change optical signal, for receiving output beam and pass to pressure fiber grating
Coupling unit, the grating conciliation unit for auto thermal compensation being carried out to pressure fiber grating and calibrate automatically, the laser
Generating unit, pressure fiber grating, coupling unit, grating conciliation unit may be contained within enclosure interior.
Being further improved to above-mentioned technical proposal, the pressure analysis instrument are included for gathering sensor Jing signal solutions
The signal gathering unit of the optical signal after device demodulation, the signal for the optical signal for collecting to be converted to the signal of telecommunication is adjusted to change single
Unit, the signal processing unit for being amplified to the signal of telecommunication and filtering, the output unit exported for pressure value after process.
Being further improved to above-mentioned technical proposal, the housing outer surface of the pressure transducer are provided with outer for isolating
The encapsulated layer of portion's environment.
The beneficial effects of the utility model are：
1st, in this utility model, on the one hand, by several pressure transducers respectively to different places under nuclear power environment
Pressure is measured, and obtains the signal of pressure change, then pressure analysis instrument is fed back to after modulating signals into by demodulator of PM signal PM,
Specific pressure value, signal strong antijamming capability, pressure measurement accuracy are obtained after processing to signal by pressure analysis instrument
It is high；Second aspect, pressure transducer, first by laser generating unit output beam, are reached after the coupled unit coupling of light beam
Pressure fiber grating, pressure fiber grating detect the minor variations of light beam wavelength and obtain pressure with this, meanwhile, grating is reconciled
Unit carries out temperature-compensating and calibration automatically, with the interference of the external environments such as temperature in pressure release continuous mode, further carries
High measurement accuracy；The third aspect, as pressure transducer is fibre optic compression sensor, it is easy to combined with other micro-scale technologies, light
Fine diameter is only 250um, and the pressure transducer volume after encapsulation is little, light weight, while fibre optic compression sensor lead is simple,
Lead is only that 1～2 optical fiber just can complete measurement, simple structure, easy to use；Fourth aspect, relative to traditional sensor,
Pressure transducer of the present utility model due to water-fast, high temperature resistant, it is corrosion-resistant, for Full-optical, need not power supply the advantages of, use
Life-span, up to 8～10 years, meets the needs of nuclear power environment.
2nd, pressure analysis instrument include for gather sensor Jing demodulator of PM signal PM demodulation after optical signal signals collecting list
Unit, the signal conversion unit for the optical signal for collecting to be converted to the signal of telecommunication, for being amplified to the signal of telecommunication and filter
Signal processing unit, for after process pressure value output output unit.Signal gathering unit collects the light letter after demodulation
After number, signal conversion unit is converted into the signal of telecommunication, then Jing signal processing units are amplified Filtering Processing, obtain after process
Pressure value the output of Jing output units.System multiplexing ability is strong, and a pressure analysis instrument at most can be passed to up to a hundred optical fiber pressures
Sensor carries out signal demodulation, successfully solves using the complicated difficult problem of signal processing circuit during traditional sensors.
3rd, the housing outer surface of pressure transducer is provided with for isolating the encapsulated layer of external environment condition, and encapsulated layer is that high intensity is lazy
Property material layer, stable chemical nature, the precise part and external environment for preventing enclosure interior are contacted and are subject to the shadow of external environment
Ring, advantageously ensure that the normal work of pressure transducer, further improve certainty of measurement.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of pressure transducer of the present utility model；
Fig. 3 is the structural representation of pressure analysis instrument of the present utility model.
Specific embodiment
This utility model is further described below in conjunction with accompanying drawing.
As shown in figure 1, being structural representation of the present utility model.
Nuclear power pressure capsule system 100, including several be used for piezometry pressure transducer 110, be connected to it is some
Individual pressure transducer 110 is used for the demodulator of PM signal PM 120 of signal demodulation, is connected to demodulator of PM signal PM 120 for 100 pressure of system
The pressure analysis instrument 130 of analysis.
As shown in Fig. 2 for the structural representation of pressure transducer of the present utility model.
Pressure transducer 110 includes housing 111, the laser generating unit 112 for output beam, becomes for detecting wavelength
Change optical signal pressure fiber grating 113, for receive output beam and pass to pressure fiber grating 113 coupling unit 114,
For the grating conciliation unit 115 for auto thermal compensation being carried out to pressure fiber grating 113 and calibrate automatically, laser generating unit
112nd, pressure fiber grating 113, coupling unit 114, grating conciliation unit 115 are may be contained within inside housing 111.
As shown in figure 3, for the structural representation of pressure analysis instrument of the present utility model.
Pressure analysis instrument 130 includes adopting for the signal for gathering optical signal of the sensor Jing after the demodulation of demodulator of PM signal PM 120
Collection unit 131, the signal conversion unit 132 for the optical signal for collecting to be converted to the signal of telecommunication, for carrying out to the signal of telecommunication
The signal processing unit 133 for amplifying and filtering, the output unit 134 exported for pressure value after process.Signal gathering unit 131
After collecting the optical signal after demodulation, signal conversion unit 132 is converted into the signal of telecommunication, then Jing signal processing units 133 enter
Row amplifies Filtering Processing, obtains pressure value and Jing output units 134 are exported after process.100 multiplexing capacity of system is strong, a pressure
Analyser 130 at most can carry out signal demodulation to up to a hundred fibre optic compression sensors 110, successfully solve using tradition sensing
Signal processing circuit complicated difficult problem during device.
111 outer surface of housing of pressure transducer 110 is provided with for isolating the encapsulated layer 116 of external environment condition, encapsulated layer 116
For high intensity inert material layer, stable chemical nature, prevent the precise part inside housing 111 from contacting with external environment and being subject to
The impact of external environment, advantageously ensures that the normal work of pressure transducer 110, further improves certainty of measurement.
In this utility model, on the one hand, by several pressure transducers 110 respectively to different places under nuclear power environment
Pressure is measured, and obtains the signal of pressure change, then feeds back to Pressure Analysis after modulating signals into by demodulator of PM signal PM 120
Instrument 130, obtains specific pressure value, signal strong antijamming capability, pressure after processing to signal by pressure analysis instrument 130
Certainty of measurement is high；Second aspect, pressure transducer 110, first by 112 output beam of laser generating unit, light beam is coupled
Unit 114 reaches pressure fiber grating 113 after coupling, and pressure fiber grating 113 detects the minor variations of light beam wavelength with this
To obtain pressure, meanwhile, grating conciliation unit 115 carries out temperature-compensating and calibration automatically, with the middle temperature of pressure release continuous mode
The interference of the external environments such as degree, further improves certainty of measurement；The third aspect, as pressure transducer 110 is passed for optical fiber pressure
Sensor 110, it is easy to combined with other micro-scale technologies, the diameter of optical fiber is only 250um, 110 volume of pressure transducer after encapsulation
Little, light weight, while 110 lead of fibre optic compression sensor is simple, lead is only that 1～2 optical fiber just can complete measurement, structure letter
It is single, easy to use；Fourth aspect, relative to traditional sensor, pressure transducer of the present utility model 110 is due to resistance to
Water, high temperature resistant, it is corrosion-resistant, for Full-optical, need not power supply the advantages of, service life met nuclear power environment up to 8～10 years
Need.
Operation principle of the present utility model is：
First, by 112 output beam of laser generating unit, the coupled unit 114 of light beam reaches pressure optical fiber after coupling
Grating 113, pressure fiber grating 113 detect the minor variations of light beam wavelength and obtain pressure with this, meanwhile, grating is reconciled single
Unit 115 carries out temperature-compensating and calibration automatically, with the interference of the external environments such as temperature in pressure release continuous mode.
Then, demodulator of PM signal PM 120 is demodulated to signal.
Finally, after signal gathering unit 131 collects the optical signal after demodulation, signal conversion unit 132 is converted into
The signal of telecommunication, then Jing signal processing units 133 are amplified Filtering Processing, obtain pressure value and Jing output units 134 are defeated after process
Go out.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that common for this area
For technical staff, without departing from the concept of the premise utility, some deformations and improvement can also be made, these all belong to
In protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be defined by claims.
Claims (3)
1. nuclear power pressure capsule system, it is characterised in that：If being used for the pressure transducer of piezometry, being connected to including several
Dry pressure transducer be used for signal demodulation demodulator of PM signal PM, be connected to demodulator of PM signal PM for system pressure analysis pressure
Analyser；The pressure transducer includes housing, the laser generating unit for output beam, believes for detecting wavelength change light
Number pressure fiber grating, for receive output beam and pass to the coupling unit of pressure fiber grating, for pressure optical fiber
Grating carries out auto thermal compensation and the grating conciliation unit calibrated automatically, the laser generating unit, pressure fiber grating, coupling
Close unit, grating conciliation unit and may be contained within enclosure interior.
2. nuclear power pressure capsule system according to claim 1, it is characterised in that：The pressure analysis instrument is included for adopting
The signal gathering unit of optical signal of the collection sensor Jing after demodulator of PM signal PM demodulation, for the optical signal for collecting is converted to electricity
The signal conversion unit of signal, for the signal of telecommunication is amplified and is filtered signal processing unit, for pressure value after process
The output unit of output.
3. nuclear power pressure capsule system according to claim 2, it is characterised in that：The housing appearance of the pressure transducer
Face is provided with for isolating the encapsulated layer of external environment condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621116110.5U CN206114161U (en) | 2016-10-11 | 2016-10-11 | Nuclear power pressure sensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621116110.5U CN206114161U (en) | 2016-10-11 | 2016-10-11 | Nuclear power pressure sensing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206114161U true CN206114161U (en) | 2017-04-19 |
Family
ID=58528574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621116110.5U Expired - Fee Related CN206114161U (en) | 2016-10-11 | 2016-10-11 | Nuclear power pressure sensing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206114161U (en) |
-
2016
- 2016-10-11 CN CN201621116110.5U patent/CN206114161U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20181011 |
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| CF01 | Termination of patent right due to non-payment of annual fee |