CN110082030A - A kind of pressure interconnecting module for fibre optic compression sensor calibration - Google Patents
A kind of pressure interconnecting module for fibre optic compression sensor calibration Download PDFInfo
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- CN110082030A CN110082030A CN201910440754.1A CN201910440754A CN110082030A CN 110082030 A CN110082030 A CN 110082030A CN 201910440754 A CN201910440754 A CN 201910440754A CN 110082030 A CN110082030 A CN 110082030A
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- 238000007906 compression Methods 0.000 title claims abstract description 85
- 239000000835 fiber Substances 0.000 title claims abstract description 84
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 230000003287 optical effect Effects 0.000 claims abstract description 30
- 238000012545 processing Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000013307 optical fiber Substances 0.000 description 12
- 238000009434 installation Methods 0.000 description 6
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- 238000012512 characterization method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 3
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- 230000007797 corrosion Effects 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 2
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- 239000013535 sea water Substances 0.000 description 2
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- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
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- 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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Abstract
The invention discloses a kind of pressure interconnecting modules for fibre optic compression sensor calibration, including valve body, connector, at least two sealing drums, at least one briquetting and at least one swivel nut.Valve inner has flow channel for liquids, and valve body is equipped at least two half-vias, and the first end of half-via is connected to flow channel for liquids, and the second end of half-via extends to the surface of valve body and is threaded bores.Connector is fixed on the first end of flow channel for liquids, and sealing drum has cavity and is communicating structure.The first end of sealing drum is threadedly coupled with threaded bores, and cavity is connected to by screw hole with half-via.Briquetting has the channel that passes through for optical cable, and the side wall of briquetting and swivel nut is provided with a v notch v along generatrix direction, and swivel nut is to the second end threaded connection with sealing drum.Structure of the invention is compact, processing and manufacturing is simple, easy to use, and while not influencing stated accuracy, the calibration efficiency of fibre optic compression sensor can be substantially improved, reduce expenditure of time and labor intensity.
Description
Technical field
The present invention relates to pressure sensor calibrating engineering device technique fields, can demarcate multiple optical fiber simultaneously more particularly to one kind
The pressure interconnecting module of pressure sensor.
Background technique
Pressure sensor is widely used in each technical field of oceanographic observation, monitoring.Pressure sensor is to experience pressure
Force signal, and pressure signal can be converted into the device or device of the signal of available output according to certain rule.Often at present
Pressure sensor is mostly electronic pressure transmitter, can be divided into piezoresistive pressure sensor, pressure according to the difference of measuring principle
Electric-type pressure sensor etc..With the fast development of optical fiber sensing technology, the various optical fiber pressures for being used in oceanographic observation, monitoring
Sensor also comes into being.
Fibre optic compression sensor is a kind of sensor that seawater pressure is changed into measurable optical signal.Fiber-optic pressure sensor
Device is generally mainly made of pressure element, optical cable, FC connector etc..One end of optical cable is connect with pressure element, and the other end connects with FC
Head connection.The working principle of fibre optic compression sensor is that the light beam of light source incidence is sent into pressure element via optical cable, in pressure-sensitive
In element and under the interaction of ambient pressure, the wavelength of light beam changes, and becomes the optical signal that can be modulated, using light
Cable is sent back to, obtains tested pressure parameter after demodulated instrument demodulation.Compared with electronic pressure transmitter, fibre optic compression sensor has
Lot of advantages: the interference free performance of anti-electromagnetism and anti-atomic radiation；Thin, soft, the light-weight mechanical performance of diameter；Absolutely
Edge, inductionless electric property；Water-fast, high temperature resistant, corrosion resistant chemical property etc..
Fibre optic compression sensor has to pass through calibration before factory, and calibration process generally follows following steps progress: will feel
Pressure element is connect by switching tooling with pressure calibration equipment, and FC connector is connect with (FBG) demodulator.Since 0MPa, pressure mark is recorded
The characterization pressure value of locking equipment and the wavelength data of fibre optic compression sensor；Then, it gradually boosts to pressure calibration equipment, every increasing
Add 1MPa pause boosting, record characterization pressure value and wavelength data；Until boosting to fibre optic compression sensor index range regulation
Pressure value, stop boosting.Then it is depressured with the interval of 1MPa, until 0MPa, continues successively record characterization pressure value and wavelength
Data.The pressure value recorded during step-up/down and corresponding wavelength data are carried out curve fitting respectively, obtain optical fiber pressure
The calibration coefficient of sensor.The wavelength data that will be recorded during calibration coefficient and buck/boost again, substitutes into calibration formula, obtains
The pressure value that fibre optic compression sensor measures is obtained, after the characterization pressure value comparison of pressure calibration equipment, optical fiber pressure is obtained and passes
Sensor calibrated error.
The length of the optical cable of fibre optic compression sensor is mainly by the application environment of fibre optic compression sensor apart from (FBG) demodulator
Distance determines.After calibration, optical cable generally no longer extends or truncates fibre optic compression sensor, no matter this is because optical cable extends
Or truncate, it requires to carry out optical cable welding, the phenomenon that optical cable welding can generate attenuated optical signal, influences measurement accuracy；In addition,
It also needs to carry out stress and seal protection to fusion point after optical cable welding, to increase optical cable fracture and by the wind of seawater corrosion
Danger.Therefore in calibration, the optical fiber stern fast longest of fibre optic compression sensor is up to the even upper km of several hundred rice.
According to the difference of seal form, the structure type of common high-precision optical fiber pressure sensor have cylinder closed type and
Two kinds of end face seal.Cylinder closed type fibre optic compression sensor shape is cylinder, is provided with o-ring groove in cylindrical exterior, is used
In mounting O-shaped rings.There is fastening thread in the end of end surface sealed fibre optic compression sensor, in fastening thread and sensor junction
Equipped with gasket.
Due to fibre optic compression sensor and conventional pressure sensor in structure type and measuring principle there are above-mentioned difference,
Therefore the adapter for being commonly used in pressure sensor calibrating can not adapt to the calibration demand of fibre optic compression sensor.In addition,
When fibre optic compression sensor is produced in batches, need to carry out the staking-out work of high-volume fibre optic compression sensor, if still used
As soon as the method that a pressure calibration equipment once only demarcates a fibre optic compression sensor, have heavy workload, labor intensity it is high,
The problems such as utilization rate of equipment and installations is low.Therefore, it is highly desirable to develop a kind of pressure that can demarcate multiple fibre optic compression sensors simultaneously
Power interconnecting module reduces expenditure of time and labor intensity to improve the calibration efficiency of fibre optic compression sensor.Moreover, being suitable
The calibration request of the fibre optic compression sensor of different structure form is answered, pressure interconnecting module there should be certain versatility, can
The fibre optic compression sensor of compatible both the above structure type.
There is friction between the pressure medium as used in pressure calibration equipment and pressure interconnecting module internal duct, can generate
Certain pressure loss, to influence stated accuracy.The principal element for influencing pressure loss includes: pipeline roughness and length.
Wherein, length of pipe is mainly determined by the quantity for the sensor installation interface reserved on pressure interconnecting module.The number of interface is installed
Amount increases, and length of pipe is longer, and pressure loss is also bigger, and stated accuracy is lower, therefore the biography reserved on pressure interconnecting module
The quantity that sensor installs interface should not be excessive.
But fibre optic compression sensor lower for measurement accuracy index request, pressure interconnecting module bring pressure
Loss influences the calibration result of sensor smaller.Under conditions of pipeline roughness has determined, can suitably it increase reserved
Sensor install interface, promoted calibration efficiency.
Therefore, it is the calibration request of the fibre optic compression sensor of adaptation different accuracy, improves the processing of pressure interconnecting module
Precision and difficulty of processing is reduced, pressure interconnecting module there should be certain expansibility.
Summary of the invention
The object of the present invention is to provide it is a kind of suitable for multiple fibre optic compression sensors simultaneously demarcate pressure interconnecting module,
To solve when demarcating high-volume fibre optic compression sensor, existing pressure sensor calibrating is unable to satisfy demand with adapter
Problem.
To achieve the above object, the present invention provides following schemes:
The invention discloses a kind of pressure interconnecting modules for fibre optic compression sensor calibration, comprising:
Valve body, the valve inner have flow channel for liquids, and the first end of the flow channel for liquids extends to the table of the valve body
Face, the valve body are equipped at least two half-vias, and the first end of the half-via is connected to the flow channel for liquids, and described half is logical
The second end in hole extends to the surface of the valve body and is threaded bores；
Connector, the connector are fixed on the first end of the flow channel for liquids, the connector to and pressure calibration
The discharge conection of equipment is tightly connected, and is connected to the flow channel for liquids and the efferent duct of pressure calibration equipment；
At least two sealing drums, the sealing drum have cavity and are communicating structure, the first end of the sealing drum and institute
Threaded bores threaded connection is stated, the cavity is connected to by screw hole with the half-via, and the cavity is to accommodate optical fiber pressure
The pressure element of sensor, the screw hole can be threadedly coupled with the stud of end surface sealed fibre optic compression sensor, the chamber
The side wall of body can be tightly connected with the cylinder sealing ring of cylinder closed type fibre optic compression sensor, the second end of the sealing drum
With external screw thread；
At least one briquetting, the briquetting have the channel passed through for optical cable, and the side wall of the briquetting is opened along generatrix direction
There are a v notch v, one end end of the briquetting to connect optical cable on the pressure element with cylinder closed type fibre optic compression sensor
Face offsets；
At least one swivel nut, the side wall of the swivel nut are provided with a v notch v along generatrix direction, the swivel nut to and accommodate
The second end of the sealing drum of the pressure element of cylinder closed type fibre optic compression sensor is threadedly coupled, and the swivel nut is to make
The briquetting compresses the pressure element of cylinder closed type fibre optic compression sensor.
Preferably, further include conduction pipe and end cap, the first end of the flow channel for liquids has an internal screw thread, the connector with
The first end of the flow channel for liquids is threadedly coupled, and the second end of the flow channel for liquids extends to the surface of the valve body, the valve
Body is n, and the conduction pipe is n-1, and the end cap is one, and n >=2, one end of the conduction pipe is to be inserted into an institute
State the second end of the flow channel for liquids and sealed connection on valve body, the other end of the conduction pipe to valve body described in another
The first end of the upper flow channel for liquids is threadedly coupled, two adjacent valve bodies by fastener locking, the end cap to
The second end of the flow channel for liquids for a valve body for being located at end is sealed.
Preferably, the valve body includes left panel, hydraulic steering gear adopting cross piece and right panel, the left panel and the right panel respectively with
The both ends of the hydraulic steering gear adopting cross piece are integrally connected, and the first end of the flow channel for liquids is located on the left panel, the flow channel for liquids
Second end is located in the right panel, and the flow channel for liquids and the hydraulic steering gear adopting cross piece are coaxial.
Preferably, the hydraulic steering gear adopting cross piece has four floors longitudinally extended, and the second end of the half-via is located at the rib
On the side in the axle center far from the hydraulic steering gear adopting cross piece of plate, the axis perpendicular in the axle center of the half-via and the hydraulic steering gear adopting cross piece.
Preferably, the half-via is six, and half-via described in every two is located in one of in the floor.
Preferably, there are columnar projections, the columnar projections are located at described in one of end to be inserted on the end cap
The second end of the flow channel for liquids of valve body and sealed connection.
Preferably, two end faces of the connector, the right side of the valve body, on the sealing drum to the valve
The plane that body offsets is equipped with annular groove, is equipped with sealing ring in the annular groove.
It preferably, further include cylinder plug, shape and the cylinder closed type fibre optic compression sensor of the cylinder plug
Pressure element shape is consistent, sealing ring is equipped in the annular groove on the cylinder of the cylinder plug, the cylinder plug is to logical
It crosses the briquetting and a swivel nut is fixed in one of them described sealing drum.
The present invention achieves following technical effect compared with the existing technology:
Pressure interconnecting module of the present invention for fibre optic compression sensor calibration is in application, in each switching fixture
After being packed into fibre optic compression sensor, connector is connect with the efferent duct of pressure calibration equipment, it can be achieved that multiple optical fiber pressures
The staking-out work of sensor.After the completion of calibration, only need to unscrew swivel nut can quickly remove the fibre optic compression sensor demarcated, more
The sensor renewed.When necessary, it can use the conduction pipe to connect two or more pressure interconnecting modules, be demarcated simultaneously to be promoted
Number of sensors improves working efficiency.
Structure of the invention is compact, processing and manufacturing is simple, easy to use, can be substantially while not influencing stated accuracy
The calibration efficiency of fibre optic compression sensor is promoted, expenditure of time and labor intensity are reduced.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the pressure interconnecting module structural schematic diagram demarcated for fibre optic compression sensor；
Fig. 2 is valve body structure axial view；
Fig. 3 is valve body main view sectional view；
Fig. 4 is valve body top cross-sectional view；
Fig. 5 is the main view sectional view that pressure interconnecting module installs two kinds of different structure pressure sensors；
Fig. 6 is cylinder closed type fibre optic compression sensor composition schematic diagram；
Fig. 7 is end surface sealed fibre optic compression sensor composition schematic diagram；
Fig. 8 is two pressure interconnecting modules series connection main view sectional views；
Fig. 9 is pressure interconnecting module series connection axial view；
Description of symbols: 1. connectors；2. valve body；3. fixture of transferring；4. end cap；5. cylinder closed type optical fiber pressure passes
Sensor；6. end surface sealed fibre optic compression sensor；7. conduction pipe；8. cylinder plug；9. screw；20. screw hole；21. left end
Face；22. upper surface；23. right side；24. rear end face；25. front end face；26. flow channel for liquids；27. half-via；28. threaded bores；
29. unthreaded hole；31. sealing drum；32. swivel nut；33. briquetting；34. screw hole；35. cavity；36. v notch v；51. pressure element；52.
Optical cable；53.FC connector；54.O type circle mounting groove；55. gasket installation position；56. stud.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide it is a kind of suitable for multiple fibre optic compression sensors simultaneously demarcate pressure interconnecting module,
To solve when demarcating high-volume fibre optic compression sensor, existing pressure sensor calibrating is unable to satisfy demand with adapter
Problem.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in figs 1-9, the present embodiment provides a kind of pressure interconnecting modules for fibre optic compression sensor calibration, including
Valve body 2, connector 1, at least two sealing drums 31, at least one briquetting 33 and at least one swivel nut 32.
Wherein, there is flow channel for liquids 26, the first end of flow channel for liquids 26 extends to the surface of valve body 2 inside valve body 2.Valve body
2 are equipped at least two half-vias 27, and the first end of half-via 27 is connected to flow channel for liquids 26, and the second end of half-via 27 extends
To valve body 2 surface and be threaded bores 28.Connector 1 is fixed on the first end of flow channel for liquids 26, connector 1 to and pressure
The discharge conection of calibration facility is tightly connected, and is connected to flow channel for liquids 26 and the efferent duct of pressure calibration equipment.Sealing drum 31
It with cavity 35 and is communicating structure, the first end of sealing drum 31 is threadedly coupled with threaded bores 28, and cavity 35 passes through screw hole 34
It is connected to half-via 27, pressure element 51 of the cavity 35 to accommodate fibre optic compression sensor, screw hole 34 can be with end face seal
The stud 56 of type fibre optic compression sensor 6 is threadedly coupled, and the side wall of cavity 35 can be with cylinder closed type fibre optic compression sensor 5
Cylinder sealing ring be tightly connected, the second end of sealing drum 31 has external screw thread.Briquetting 33 has the channel passed through for optical cable 52,
The side wall of briquetting 33 is provided with a v notch v 36 along generatrix direction, briquetting 33 to cylinder closed type fibre optic compression sensor 5
One end end face that optical cable 52 is connected on pressure element 51 offsets.The side wall of swivel nut 32 is provided with a v notch v 36, spiral shell along generatrix direction
Set 32 connects to the second end screw thread of the sealing drum 31 with the pressure element 51 for accommodating cylinder closed type fibre optic compression sensor 5
It connects, swivel nut 32 is to make briquetting 33 compress the pressure element 51 of cylinder closed type fibre optic compression sensor 5.
When in use, the different of the fibre optic compression sensor demarcated as needed select the pressure interconnecting module of the present embodiment
Corresponding mounting means.For end surface sealed fibre optic compression sensor 6 comprising stud 56, the pressure element being sequentially connected
51, optical cable 52 and FC connector 53.The end face of pressure element 51 to install stud 56 is usually gasket installation position 55, to
Gasket is installed, gasket is sheathed on stud 56.When end surface sealed fibre optic compression sensor 6 to be connect with valve body 2, only
The pressure element 51 of end surface sealed fibre optic compression sensor 6 need to be put into the cavity 35 of sealing drum 31, rotate pressure-sensitive member
Part 51 is until 31 pinch seal pad of the pressure element 51 and corresponding sealing drum.For cylinder closed type fiber-optic pressure sensor
Device 5 comprising pressure element 51, optical cable 52 and the FC connector 53 being sequentially connected, the side of pressure element 51 therein are equipped with O-shaped
Mounting groove 54 is enclosed, O-ring is installed in the mounting groove.When cylinder closed type fibre optic compression sensor 5 is connect with valve body 2,
The pressure element 51 of cylinder closed type fibre optic compression sensor 5 need to be put into the cavity 35 of sealing drum 31, pass through optical cable 52
The v notch v 36 of briquetting 33 enters in the channel passed through for optical cable 52, enters optical cable 52 by the v notch v 36 of swivel nut 32
In swivel nut 32, by rotation swivel nut 32 by the pressure element 51 of briquetting 33 and cylinder closed type fibre optic compression sensor 5 together under
Pressure.The v notch v 36 of swivel nut 32 and briquetting 33 should be made to mutually stagger after locking swivel nut 32 with sealing drum 31, avoid optical cable
52 skid off from v notch v 36.The width of v notch v 36 is more bigger than 52 diameter of optical cable, so as to by briquetting 33 and swivel nut
32 rapidly cover on optical cable 52, penetrate briquetting 33 and swivel nut 32 without from the FC connector 53 of several hundred meters of 52 end of optical cable.
Since the pressure interconnecting module of the present embodiment has at least two sealing drums 31, multiple optical fiber pressures can be installed simultaneously
Sensor improves calibration efficiency.The difference for the fibre optic compression sensor type demarcated as needed, may be selected different installation sides
Formula.Pressure element 51 can directly be rotated for end surface sealed fibre optic compression sensor 6 to install, fixture 3 of transferring at this time is
Sealing drum 31 can install cylinder closed type fibre optic compression sensor 5 by briquetting 33 and swivel nut 32, at this time switching folder
Tool 3 is sealing drum 31, briquetting 33 and swivel nut 32.Therefore, the pressure interconnecting module of the present embodiment can be compatible with two kinds of light
Fine pressure sensor improves the utilization rate of equipment, has preferable versatility.Optical fiber pressure is packed on each switching fixture 3
After sensor, connector 1 is connect to the calibration, it can be achieved that multiple fibre optic compression sensors with the efferent duct of pressure calibration equipment
Work.After the completion of calibration, only need to unscrew swivel nut 32 can quickly remove the fibre optic compression sensor demarcated, the sensing more renewed
Device.
When a pressure interconnecting module is not able to satisfy the installation requirements of fibre optic compression sensor, in order to improve calibration effect
Rate, the present embodiment further include conduction pipe 7 and end cap 4.The first end of flow channel for liquids 26 has internal screw thread, connector 1 and liquid flow
The first end in road 26 is threadedly coupled, and the second end of flow channel for liquids 26 extends to the surface of valve body 2.Valve body 2 is n, and conduction pipe 7 is
N-1, end cap 4 is one, n >=2.One end of conduction pipe 7 is cylindrical surface, to be inserted into flow channel for liquids 26 on a valve body 2
Second end is simultaneously tightly connected.The other end of conduction pipe 7 is flank, to first with flow channel for liquids 26 on another valve body 2
End is threadedly coupled.Two adjacent valve bodies 2 are locked by fastener, and end cap 4 is to the liquid to a valve body 2 for being located at end
The second end of runner 26 is sealed, and end cap 4 is blind flange.
Multiple pressure interconnecting modules are connected by conduction pipe 7, can satisfy any number of fiber-optic pressure sensor
The calibration demand of device.By making the first end of flow channel for liquids 26 that there is internal screw thread, conduction pipe 7 and connector 1 can be passed through rotation
The mode rapid-assembling/disassembling turned improves calibration efficiency.In order to realize that assembled in series, the present embodiment prolong the second end of flow channel for liquids 26
The surface for extending to valve body 2, when pressure interconnecting module is only one, it is also desirable to by end cap 4 to the second end of flow channel for liquids 26
It is sealed.
In order to mitigate the weight of valve body 2, the valve body 2 of the present embodiment includes left panel, hydraulic steering gear adopting cross piece and right panel, left panel and
Right panel is integrally connected with the both ends of hydraulic steering gear adopting cross piece respectively.The first end of flow channel for liquids 26 is located on left panel, flow channel for liquids 26
Second end is located in right panel, and flow channel for liquids 26 and hydraulic steering gear adopting cross piece are coaxial.The valve body 2 is metal block, and the hydraulic steering gear adopting cross piece at 2 middle part of valve body is
Milling is formed.Hydraulic steering gear adopting cross piece has four floors longitudinally extended, and the second end of half-via 27 is located at the separate hydraulic steering gear adopting cross piece of floor
On the side in axle center, the axle center of half-via 27 and the axis perpendicular of hydraulic steering gear adopting cross piece.Right panel is equipped with screw hole 20, sets on left panel
There is the unthreaded hole 29 with 20 position face of screw hole, can be locked the left panel of two neighboring valve body 2 and right panel by screw 9.
In the present embodiment, half-via 27 is six, and corresponding sealing drum 31 is also six, the quantity of briquetting 33 and swivel nut 32
It is selected as needed, every two half-via 27 is located in one of in floor.By taking the visual angle of Fig. 1, Fig. 2 and Fig. 9 as an example, half
The second end of through-hole 27 is located at the front end face 25, rear end face 24 and upper surface 22 of valve body 2, and connector 1 is installed on valve body 2
Left side 21, end cap 4 are installed on the right side 23 of valve body 2.
In order to keep the sealing effect of end cap 4 more preferable, on the end cap 4 of the present embodiment have columnar projections, columnar projections to
Insertion is located at the second end of the flow channel for liquids 26 of a valve body 2 of end and sealed connection.
In order to improve the leakproofness of other link positions, the present embodiment is in two end faces of connector 1, the right end of valve body 2
Plane on face 23, sealing drum 31 to offset with valve body 2 is equipped with annular groove, is equipped with sealing ring in annular groove.
Half-via 27 is six in the present embodiment, when the quantity of the fibre optic compression sensor of actual needs calibration is not six
When integral multiple, need to block extra half-via 27.For this purpose, the present embodiment further includes cylinder plug 8, the shape of cylinder plug 8
It is consistent with 51 shape of pressure element of cylinder closed type fibre optic compression sensor 5, it is same in the annular groove on the cylinder of cylinder plug 8
Sample is equipped with sealing ring, and cylinder plug 8 is fixed in one of sealing drum 31 to pass through a briquetting 33 and a swivel nut 32,
The mounting means of briquetting 33 and swivel nut 32 briquetting 33 corresponding with cylinder closed type fibre optic compression sensor 5 and swivel nut 32 herein
Mounting means is identical.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (8)
1. a kind of pressure interconnecting module for fibre optic compression sensor calibration characterized by comprising
Valve body, the valve inner have flow channel for liquids, and the first end of the flow channel for liquids extends to the surface of the valve body, institute
Valve body is stated equipped at least two half-vias, the first end of the half-via is connected to the flow channel for liquids, the half-via
Second end extends to the surface of the valve body and is threaded bores；
Connector, the connector are fixed on the first end of the flow channel for liquids, the connector to pressure calibration equipment
Discharge conection be tightly connected, be connected to the flow channel for liquids and the efferent duct of pressure calibration equipment；
At least two sealing drums, the sealing drum have cavity and are communicating structure, the first end of the sealing drum and the spiral shell
Pit aperture is threadedly coupled, and the cavity is connected to by screw hole with the half-via, and the cavity is to accommodate fiber-optic pressure sensor
The pressure element of device, the screw hole can be threadedly coupled with the stud of end surface sealed fibre optic compression sensor, the cavity
Side wall can be tightly connected with the cylinder sealing ring of cylinder closed type fibre optic compression sensor, and the second end of the sealing drum has
External screw thread；
At least one briquetting, the briquetting have the channel passed through for optical cable, and the side wall of the briquetting is provided with item along generatrix direction
V notch v, one end end face phase of the briquetting to connect optical cable on the pressure element with cylinder closed type fibre optic compression sensor
It supports；
At least one swivel nut, the side wall of the swivel nut are provided with a v notch v along generatrix direction, the swivel nut to accommodate cylinder
The second end of the sealing drum of the pressure element of closed type fibre optic compression sensor is threadedly coupled, and the swivel nut is described to make
The pressure element of briquetting compression cylinder closed type fibre optic compression sensor.
2. the pressure interconnecting module according to claim 1 for fibre optic compression sensor calibration, which is characterized in that also wrap
Conduction pipe and end cap are included, the first end of the flow channel for liquids has internal screw thread, the connector and the first of the flow channel for liquids
End is threadedly coupled, and the second end of the flow channel for liquids extends to the surface of the valve body, and the valve body is n, the conduction pipe
It is n-1, the end cap is one, and n >=2, one end of the conduction pipe is to be inserted into the liquid flow on the valve body
The second end in road and sealed connection, the other end of the conduction pipe is to flow channel for liquids described on valve body described in another
Threaded one end connection, two adjacent valve bodies are locked by fastener, and the end cap is to an institute for being located at end
The second end for stating the flow channel for liquids of valve body is sealed.
3. the pressure interconnecting module according to claim 2 for fibre optic compression sensor calibration, which is characterized in that described
Valve body includes left panel, hydraulic steering gear adopting cross piece and right panel, the left panel and the right panel respectively with the both ends one of the hydraulic steering gear adopting cross piece
Body is connected, and the first end of the flow channel for liquids is located on the left panel, and the second end of the flow channel for liquids is located at the right side
On plate, the flow channel for liquids and the hydraulic steering gear adopting cross piece are coaxial.
4. the pressure interconnecting module according to claim 3 for fibre optic compression sensor calibration, which is characterized in that described
Hydraulic steering gear adopting cross piece has four floors longitudinally extended, and the second end of the half-via is located at the separate hydraulic steering gear adopting cross piece of the floor
On the side in axle center, the axis perpendicular in the axle center of the half-via and the hydraulic steering gear adopting cross piece.
5. the pressure interconnecting module according to claim 4 for fibre optic compression sensor calibration, which is characterized in that described
Half-via is six, and half-via described in every two is located in one of in the floor.
6. the pressure interconnecting module according to claim 3 for fibre optic compression sensor calibration, which is characterized in that described
There are columnar projections on end cap, the flow channel for liquids of the columnar projections to be inserted into a valve body positioned at end
Second end is simultaneously tightly connected.
7. the pressure interconnecting module according to claim 3 for fibre optic compression sensor calibration, which is characterized in that described
Two end faces of connector, the right side of the valve body are equipped with to the plane that offsets with the valve body on the sealing drum
Annular groove, the annular groove is interior to be equipped with sealing ring.
8. the pressure interconnecting module according to claim 1 for fibre optic compression sensor calibration, which is characterized in that also wrap
Cylinder plug is included, the shape of the cylinder plug is consistent with the pressure element shape of cylinder closed type fibre optic compression sensor, institute
It states and is equipped with sealing ring in the annular groove on the cylinder of cylinder plug, the cylinder plug is to pass through a briquetting and one
The swivel nut is fixed in one of them described sealing drum.
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| CN201910440754.1A CN110082030B (en) | 2019-05-24 | 2019-05-24 | Pressure switching module for calibrating optical fiber pressure sensor |
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| CN201910440754.1A CN110082030B (en) | 2019-05-24 | 2019-05-24 | Pressure switching module for calibrating optical fiber pressure sensor |
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| CN110082030B CN110082030B (en) | 2024-03-08 |
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Citations (4)
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|---|---|---|---|---|
| US20050200943A1 (en) * | 2004-03-12 | 2005-09-15 | Devincentis David S. | Thermal management of an optical amplifier module housed in a universal cable joint |
| WO2018086553A1 (en) * | 2016-11-09 | 2018-05-17 | 杭州三花研究院有限公司 | Fluid heat exchange assembly, and heat management system of vehicle |
| CN109470558A (en) * | 2018-12-19 | 2019-03-15 | 中国科学院地球化学研究所 | A kind of calibration device for displacement sensor under high temperature and pressure |
| CN209745472U (en) * | 2019-05-24 | 2019-12-06 | 国家海洋技术中心 | Pressure switching module for calibrating optical fiber pressure sensor |
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2019
- 2019-05-24 CN CN201910440754.1A patent/CN110082030B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050200943A1 (en) * | 2004-03-12 | 2005-09-15 | Devincentis David S. | Thermal management of an optical amplifier module housed in a universal cable joint |
| WO2018086553A1 (en) * | 2016-11-09 | 2018-05-17 | 杭州三花研究院有限公司 | Fluid heat exchange assembly, and heat management system of vehicle |
| CN109470558A (en) * | 2018-12-19 | 2019-03-15 | 中国科学院地球化学研究所 | A kind of calibration device for displacement sensor under high temperature and pressure |
| CN209745472U (en) * | 2019-05-24 | 2019-12-06 | 国家海洋技术中心 | Pressure switching module for calibrating optical fiber pressure sensor |
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| CN110082030B (en) | 2024-03-08 |
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