CN104989959B - A kind of intelligent electric-heating oil-collecting gas gathering system - Google Patents
A kind of intelligent electric-heating oil-collecting gas gathering system Download PDFInfo
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- CN104989959B CN104989959B CN201510333218.3A CN201510333218A CN104989959B CN 104989959 B CN104989959 B CN 104989959B CN 201510333218 A CN201510333218 A CN 201510333218A CN 104989959 B CN104989959 B CN 104989959B
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Abstract
The embodiment of the invention discloses a kind of intelligent electric-heating oil-collecting gas gathering system, including：Insulating tube, ribbon heater, laser emitter, regulation device and man-machine interactive platform, mutually twisted optical fiber and fever cored wire are provided with the ribbon heater, the laser emitter is used to send incident laser into the optical fiber, regulation device is used for the scattering laser signal for obtaining the optical fiber, the temperature information to match with the scattering laser signal and positional information are calculated according to the scattering laser signal and laser signal using distributed optical fiber temperature measurement principle, the temperature information and positional information are sent to man-machine interactive platform and shown, user can judge that the intelligent electric-heating oil-collecting gas gathering system whether there is failure by the temperature information, when a failure occurs, the conduit positions to be broken down by positional information positioning, so as to achieve the purpose that to carry out timely processing to failure.
Description
Technical field
The present invention relates to equipment control and detection technique field, more specifically to a kind of intelligent electric-heating oil-collecting gas collection
System.
Background technology
Exported for crude oil, when at a temperature below condensation point, crude oil output resistance increase, it is necessary to completed by external heat source
Conveying.This intelligent electric-heating oil-collecting gas gathering system is directed to come into being.
Intelligent electric-heating oil-collecting gas gathering system is mainly by heat preservation pipe prefabricated and ribbon heater, regulation device and system software platform
Three parts form.
But since weather conditions (such as earthquake) or human factor (such as soil construction or pilferage) can cause duct portion to separate
Now it is broken, and then the situation of oil leak occurs, failure such as cannot find and solve in time after occurring, and be likely to result in failure propagation,
So as to bring serious economic loss.
The content of the invention
It is an object of the invention to provide a kind of intelligent electric-heating oil-collecting gas gathering system, to find intelligent electric-heating oil-collecting collection in time
The position that gas system breaks down.
To achieve the above object, an embodiment of the present invention provides following technical solution：
A kind of intelligent electric-heating oil-collecting gas gathering system, including：
Insulating tube, ribbon heater, laser emitter, regulation device and man-machine interactive platform；
The ribbon heater is interspersed in the heat dissipation threading groove of the insulating tube；
Mutually twisted optical fiber and fever cored wire are provided with the ribbon heater；
The laser emitter is connected with the optical fiber, for the optical fiber output laser signal；
The temperature acquisition end of the regulation device is connected with the optical fiber, for obtain it is that the optical fiber scatters backward, with
The opposite scattering laser signal in the laser signal direction of laser emitter output, using distributed optical fiber temperature measurement principle foundation
The temperature information to match with the scattering laser signal and position letter is calculated in the scattering laser signal and laser signal
Breath, the temperature information and positional information are sent to man-machine interactive platform；
The man-machine interactive platform is used for according to the temperature information and positional information to default pipeline map into rower
Note.
Preferably, in the intelligent electric-heating oil-collecting gas gathering system, the insulating tube, including：
Seamless pipeline；
The heat dissipation threading groove being fitted on the seamless pipeline；
It is arranged on fixed pin on the seamless pipeline, for fixing the heat dissipation threading groove；
The insulating layer being coated on around the seamless pipeline and the heat dissipation threading groove.
Preferably, in the intelligent electric-heating oil-collecting gas gathering system, the heat dissipation threading groove, for the aluminium alloy of half camber structure
Material, the concave surface of the half camber structure are bonded with the seamless pipeline.
Preferably, in the intelligent electric-heating oil-collecting gas gathering system, the ribbon heater, further includes：
The insulating layer being coated on around mutually twisted the fever cored wire and optical fiber；
The outer jointing jacket being coated on outside the insulating layer；
The shielded layer being coated on outside the outer jointing jacket；；
For protecting the enhancement layer of the shielded layer.
Preferably, in the intelligent electric-heating oil-collecting gas gathering system, fever cored wire, optical fiber, insulating layer, shielded layer and the guarantor
The quantity of sheath is multiple, and fever cored wire, optical fiber, insulating layer, shielded layer and the protective case correspond.
Preferably, in the intelligent electric-heating oil-collecting gas gathering system, the fever cored wire and optical fiber parallel laid.
Preferably, in the intelligent electric-heating oil-collecting gas gathering system, the regulation device includes：
The temperature monitoring unit that input terminal is connected with the optical fiber, for obtain it is that the optical fiber scatters backward, with it is described
The opposite scattering laser signal in laser signal direction of laser emitter output, using distributed optical fiber temperature measurement principle according to described in
Scattering laser signal and laser signal be calculated it is matching with the scattering laser signal, for characterizing the fever cored wire
The temperature signal and position signal of temperature, data analysis unit is passed to by the temperature signal by administrative unit；
The administrative unit that first end is connected with the output terminal of the temperature monitoring unit, is used for realization in the regulation device
Signal transmission between unit；
Data analysis unit is connected with the administrative unit second end, for by the temperature signal got and preset temperature
Signal is contrasted, and heating or power-off cooling control are powered to the ribbon heater according to comparative result；
The information remote transmitting unit being connected with the administrative unit, for by wireless network by the temperature signal and position
Signal is sent to man-machine interactive platform.
Preferably, in the intelligent electric-heating oil-collecting gas gathering system, the man-machine interactive platform is default specifically for showing
Pipeline map, and after the temperature signal and position signal is got, whether within a preset range to judge the temperature signal,
Using the target location to match in pipeline map described in the identification information pair to match with judging result with the position signal
It is labeled.
Preferably, in the intelligent electric-heating oil-collecting gas gathering system, the man-machine interactive platform includes：
Pipeline mapping module, for storing and showing the pipeline map of user preset；
Comparison module, for whether within a preset range to judge the electric signal, if so, exporting first to labeling module
Signal is marked, otherwise, to labeling module output the second mark signal；
Labeling module, for searching the target to match in the pipeline map with the positional information according to map listing
Position, when getting the first mark signal, is labeled the target location using first flag, when getting the second mark
When noting signal, the target location is labeled using second identifier, and export caution signal；
Positional information and the target location to match with the positional information are stored with wherein described map listing in pipe
Coordinate information on the map of road.
Preferably, in the intelligent electric-heating oil-collecting gas gathering system, the temperature monitoring unit includes：
The photodetector that input terminal is connected with the optical fiber is that the optical fiber scatters backward and described sharp for obtaining
The opposite scattering laser signal of laser signal of optical transmitting set output, handles the scattering laser signal, and exports extremely
Process circuit；
The input terminal of the process circuit is connected with the output terminal of the photodetector, for the signal got to be filtered
Sent after ripple, Shape correction to processor；
The input terminal of the processor is connected with the output terminal of the signal processing circuit, output terminal and the administrative unit
It is connected, for being handled according to distributed optical fiber temperature measurement principle the signal after filter shape, is calculated and the scattering
The temperature signal and position signal that laser signal matches.
By above scheme, due in the intelligent electric-heating oil-collecting gas gathering system disclosed in the above embodiments of the present application
Ribbon heater in be provided with optical fiber, therefore distributed optical fiber temperature measurement principle can be used to the scattering laser signal of the optical fiber and entered
Laser signal is penetrated to be handled, you can obtain producing the positional information of the optical fiber of scattering laser signal, and corresponding to the position
Temperature information, therefore can judge that the intelligent electric-heating oil-collecting gas gathering system whether there is failure by the temperature information,
When a failure occurs, the conduit positions to be broken down by positional information positioning, locate failure so as to reach in time
The purpose of reason.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structure chart of intelligent electric-heating oil-collecting gas gathering system disclosed in the embodiment of the present application；
Fig. 2 is a kind of structure chart of insulating tube disclosed in the embodiment of the present application；
Fig. 3 is a kind of structure chart of ribbon heater disclosed in the embodiment of the present application；
Fig. 4 is a kind of structure chart of regulation device disclosed in the embodiment of the present application；
Fig. 5 is a kind of structure chart of man-machine interactive platform disclosed in the embodiment of the present application.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment, belongs to the scope of protection of the invention.
Distributed optical fiber temperature sensing system DTS is to be based on fiber Raman (Raman) scattering phenomenon.Laser light source is sent
Light pulse and optical fiber interaction of molecules, Raman scattering occurs, and Raman scattering is associated with the thermal vibration of optical fiber molecule
, thus have sensitivity to temperature, it can be used for carrying out temperature survey.In a fiber, since scattered signal is continuous, by making
The time interval between incident light and Raman diffused light is measured with high-speed signal acquisition technology, you can obtains Raman diffused light
Position, since Raman diffused light is temperature sensitive, can measure and the corresponding temperature point of position institute that Raman is penetrated occurs
Cloth.
It can be seen that using the distributed optical fiber temperature sensing system of distributed optical fiber temperature measurement principle, hair can be accurately detected
The temperature corresponding to position and the position that raw Raman diffused light occurs.
Fig. 1 is a kind of structure chart of intelligent electric-heating oil-collecting gas gathering system disclosed in the embodiment of the present application；
Fig. 2 is a kind of structure chart of insulating tube disclosed in the embodiment of the present application；
Fig. 3 is a kind of structure chart of ribbon heater disclosed in the embodiment of the present application.
Therefore the embodiment of the invention discloses a kind of application distribution formula optical fiber temperature-measurement principle, being capable of computational intelligence electric heating collection
The intelligent electric-heating oil-collecting gas gathering system of the temperature information of each position of oil circuit in oily gas gathering system, referring to Fig. 1-Fig. 3, including：
Insulating tube 1, ribbon heater 2, laser emitter 3, regulation device 4 and man-machine interactive platform 5；
The ribbon heater 2 is interspersed in the heat dissipation threading groove 101 of the insulating tube 1；
Mutually twisted optical fiber 201 and fever cored wire 202 are provided with the ribbon heater 2；
The laser emitter 3 is connected with the optical fiber 201, for exporting laser signal to the optical fiber 201；
The temperature acquisition end of the regulation device 4 is connected with the optical fiber 201, is dissipated backward for obtaining the optical fiber 201
Scattering laser signal penetrate, opposite with the laser signal direction of the laser emitter 3 output, using distributed optical fiber temperature measurement
The temperature information to match with the scattering laser signal and positional information is calculated according to the scattering laser signal in principle,
The temperature information and positional information are sent to man-machine interactive platform 5；
The man-machine interactive platform 5 is used for according to the temperature information and positional information to default pipeline map into rower
Note.
As it can be seen that due in the ribbon heater 2 in the intelligent electric-heating oil-collecting gas gathering system disclosed in the above embodiments of the present application
There is provided optical fiber 201, therefore scattering laser signal and incident laser of the distributed optical fiber temperature measurement principle to the optical fiber can be used
Signal is handled, you can obtain producing the position of the optical fiber of scattering laser signal, and the temperature information corresponding to the position,
Since the optical fiber is to be twisted the position letter for being arranged in the ribbon heater, being calculated with the fever cored wire
Breath and temperature information can also characterize the positional information and temperature information of the ribbon heater scattered, and user can pass through temperature information
Judge whether pipeline breaks down, if there is failure, you can the conduit positions to be broken down by positional information positioning,
So as to achieve the purpose that to carry out timely processing to failure.
In intelligent electric-heating oil-collecting gas gathering system, the insulating tube 1 and the basis that ribbon heater 2 is the system, its quality are good
The bad precision and reliability for being directly related to the system, therefore, referring to Fig. 2 and Fig. 3, disclosed herein as well is a kind of insulating tube
With the concrete structure diagram of ribbon heater；
Referring to Fig. 2, the insulating tube 1, can include：
Seamless pipeline 100；
The heat dissipation threading groove 101 being fitted on the seamless pipeline 100；
It is arranged on fixed pin 102 on the seamless pipeline 100, for fixing the heat dissipation threading groove 101；
The insulating layer 103 being coated on around the seamless pipeline 100 and the heat dissipation threading groove 102.
It is, of course, understood that in order to increase the heat transfer of the seamless pipeline it is new can, so as to its can quickly by
Heat is obtained at the heat dissipation threading groove 101, the seamless pipeline 100 can be metal tubes, for example, it can be seamless steel
Pipe.The heat dissipation threading groove 101, can be the aluminum alloy material of half camber structure, the concave surface of the half camber structure with it is described
Seamless pipeline fitting, so that quick heat exchange between the heat dissipation threading groove 101 and the seamless pipeline.Institute in order to prevent
State seamless pipeline 100 to be corroded oxidation, a corrosion-resistant coating can also be coated with the seamless pipeline 100, certainly, in order into one
Step protects the insulating tube 1 not damaged by external force, and the insulating tube in the above embodiments of the present application can also be set including one
The enhancement layer outside the insulating layer is put, such as the enhancement layer can be jacket leather layer.Of course for the guarantee insulation
The quality of pipe 1, the insulating tube 1 can use once prefabricated profiled mode to be made.
Referring to Fig. 3, the ribbon heater 2 can include disclosed in the embodiment of the present application：
Generate heat cored wire 202；
The mutually twisted optical fiber 201 with the fever cored wire 202；
The insulating layer 203 being coated on around mutually twisted the fever cored wire 202 and optical fiber 201；
The outer jointing jacket 204 being coated on outside the insulating layer 203；
The shielded layer (206) being coated on outside the outer jointing jacket 204；
For protecting the enhancement layer 205 of the shielded layer.
Wherein, the insulating layer 203 and the protective case 204 can be made using fluorine material F46, the optical fiber
201 can use armouring special optical cable multimode fibre.
It is understood that in the ribbon heater 2, the quantity of the optical fiber can be one can also be it is multiple, when
When the quantity of the optical fiber 201 is 1, the optical fiber 201 can be twisted with 202 phase of one of fever cored wire in the ribbon heater
Close, certainly, the quantity of the optical fiber 201 can also be multiple, cored wire 202, insulating layer 203, the shielded layer 206 of generating heat described at this time
Quantity with protective case 204 can be identical with the quantity of the optical fiber 201, and the fever cored wire, optical fiber, insulating layer, shielding
Layer and protective case correspond.It is understood that the in order to enable convenient heat dissipation for interting the insulating tube 1 in the ribbon heater 2
Interspersed groove 101, fever 201 parallel laid of cored wire 202 and the optical fiber.
It is understood that the length of the ribbon heater 2 is related with the size of its supply voltage, supply voltage is bigger, institute
It is longer to state the length of ribbon heater 2, for example, when the supply voltage is 660V, the length of the ribbon heater 2 can be 3000
Rice, when the supply voltage is 380V, the length of the ribbon heater is 1500 meters.
It is understood that referring to Fig. 4, disclosed herein as well is a kind of concrete structure diagram of the regulation device 4, referring to
Fig. 4, the regulation device 4 can include：
The temperature monitoring unit 401 that input terminal is connected with the optical fiber, for obtain the optical fiber 201 it is scattering backward,
The scattering laser signal opposite with the laser signal direction of the laser emitter 3 output, according to the scattering laser signal meter
Calculate and obtain temperature signal and position letter match with the scattering laser signal, for characterizing the fever cored wire temperature
Number, the temperature signal is passed into data analysis unit 403 by administrative unit；
The administrative unit 402 that first end is connected with the output terminal of the temperature monitoring unit 401, is used for realization the regulation and control
Signal transmission in device between unit；
The data analysis unit 403 is connected with the administrative unit second end, for by the temperature signal got with
Preset temperature signals are contrasted, and heating or power-off cooling control are powered to the ribbon heater 2 according to comparative result, e.g.,
When the temperature signal is less than preset temperature signals, ribbon heater power supply is heated, when the temperature signal is higher than
During preset temperature signals, cooling control is carried out to ribbon heater power-off；
The information remote transmitting unit 404 being connected with the administrative unit 402, for by wireless network by the temperature signal
Sent with position signal to man-machine interactive platform 5.
It is understood that the regulation device 4 can also include a storage unit 405, clock unit 406, power supply list
Member 407, the storage unit 405 is used for realization data storage function, when the clock unit 406 is determined for regulation device
Between, the power supply unit 407 is used to be powered unit.
Further, the temperature monitoring unit 401 can include：
The photodetector APD that input terminal is connected with the optical fiber, for obtain it is that the optical fiber scatters backward, with it is described
The opposite scattering laser signal of laser signal of laser emitter output, is handled the scattering laser signal, and export
To process circuit；
The input terminal of the process circuit is connected with the output terminal of the photodetector, for the signal got to be filtered
Sent after ripple, Shape correction to processor；
The input terminal of the processor is connected with the output terminal of the signal processing circuit, output terminal and the administrative unit
It is connected, for being handled according to distributed optical fiber temperature measurement principle the signal after filter shape, is calculated and the scattering
The temperature signal and position signal that laser signal matches.
It is understood that the state of each conduit positions in intelligent electric-heating oil-collecting gas gathering system is checked in order to facilitate user
Information, a pipeline map for being used to show pipeline the present situation is provided with the man-machine interactive platform, and the human-computer interaction is put down
Whether within a preset range platform judges the temperature signal after the temperature signal and the position signal is got, and uses
The target location to match in pipeline map described in the identification information pair to match with judging result with the position signal carries out
Mark.Need to illustrate when, each conduit positions of the pipeline map exist and its one-to-one position signal.
Referring to Fig. 5, the man-machine interactive platform 5 can specifically include：
Pipeline mapping module 501, for storing and showing the pipeline map of user preset；
Comparison module 502, for whether within a preset range to judge the electric signal, if so, being exported to labeling module
First mark signal, otherwise, to labeling module output the second mark signal；
Labeling module 503, for searching what is matched in the pipeline map with the positional information according to map listing
Target location, when getting the first mark signal, is labeled the target location using first flag, when getting
During two mark signals, the target location is labeled using second identifier, and export caution signal；
Positional information and the target location to match with the positional information are stored with wherein described map listing in pipe
Coordinate information on the map of road.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (8)
- A kind of 1. intelligent electric-heating oil-collecting gas gathering system, it is characterised in that including：Insulating tube, ribbon heater, laser emitter, regulation device and man-machine interactive platform；The ribbon heater is interspersed in the heat dissipation threading groove of the insulating tube；Mutually twisted optical fiber and fever cored wire are provided with the ribbon heater；The laser emitter is connected with the optical fiber, for the optical fiber output laser signal；The temperature acquisition end of the regulation device is connected with the optical fiber, for obtain it is that the optical fiber scatters backward, with it is described The opposite scattering laser signal in laser signal direction of laser emitter output, using distributed optical fiber temperature measurement principle according to described in The temperature information to match with the scattering laser signal and positional information is calculated in scattering laser signal and laser signal, will The temperature information and positional information are sent to man-machine interactive platform；The man-machine interactive platform is used to show default pipeline map, and is getting the temperature signal and position signal Afterwards, whether within a preset range the temperature signal is judged, using pipeline described in the identification information pair to match with judging result The target location to match in map with the position signal is labeled；The regulation device includes：The temperature monitoring unit that input terminal is connected with the optical fiber, for obtaining the optical fiber the scatters backward and laser The opposite scattering laser signal in laser signal direction of transmitter output, using distributed optical fiber temperature measurement principle according to the scattering Laser signal and laser signal be calculated it is matching with the scattering laser signal, for characterize it is described fever cored wire temperature Temperature signal and position signal, the temperature signal is passed into data analysis unit by administrative unit；The administrative unit that first end is connected with the output terminal of the temperature monitoring unit, is used for realization each in the regulation device Signal transmission between unit；Data analysis unit is connected with the administrative unit second end, for by the temperature signal got and preset temperature signals Contrasted, heating or power-off cooling control are powered to the ribbon heater according to comparative result, when the temperature signal is low When preset temperature signals, ribbon heater power supply is heated, when the temperature is higher than preset temperature signals, to described Ribbon heater power-off carries out cooling control；The information remote transmitting unit being connected with the administrative unit, for by wireless network by the temperature signal and position signal Send to man-machine interactive platform.
- 2. intelligent electric-heating oil-collecting gas gathering system according to claim 1, it is characterised in that the insulating tube, including：Seamless pipeline；The heat dissipation threading groove being fitted on the seamless pipeline；It is arranged on fixed pin on the seamless pipeline, for fixing the heat dissipation threading groove；The insulating layer being coated on around the seamless pipeline and the heat dissipation threading groove.
- 3. intelligent electric-heating oil-collecting gas gathering system according to claim 2, it is characterised in that the heat dissipation threading groove, for half The aluminum alloy material of camber structure, the concave surface of the half camber structure are bonded with the seamless pipeline.
- 4. intelligent electric-heating oil-collecting gas gathering system according to claim 1, it is characterised in that the ribbon heater, further includes：The insulating layer being coated on around mutually twisted the fever cored wire and optical fiber；The outer jointing jacket being coated on outside the insulating layer；The shielded layer being coated on outside the outer jointing jacket；For protecting the enhancement layer of the shielded layer.
- 5. intelligent electric-heating oil-collecting gas gathering system according to claim 4, it is characterised in that it is described fever cored wire, optical fiber, absolutely The quantity of edge layer, shielded layer and protective case is multiple, and fever cored wire, optical fiber, insulating layer, shielded layer and the protective case are one by one It is corresponding.
- 6. intelligent electric-heating oil-collecting gas gathering system according to claim 5, it is characterised in that the fever cored wire and optical fiber are put down Row is laid with.
- 7. intelligent electric-heating oil-collecting gas gathering system according to claim 1, it is characterised in that the man-machine interactive platform bag Include：Pipeline mapping module, for storing and showing the pipeline map of user preset；Comparison module, for whether within a preset range to judge the temperature signal, if so, being marked to labeling module output first Signal is noted, otherwise, to labeling module output the second mark signal；Labeling module, for searching the target position to match in the pipeline map with the positional information according to map listing Put, when getting the first mark signal, the target location is labeled using first flag, when getting the second mark During signal, the target location is labeled using second identifier, and export caution signal；Positional information and the target location to match with the positional information are stored with wherein described map listing in pipeline Coordinate information on figure.
- 8. intelligent electric-heating oil-collecting gas gathering system according to claim 1, it is characterised in that the temperature monitoring unit bag Include：The photodetector that input terminal is connected with the optical fiber, sends out for obtaining the optical fiber the scatters backward and laser The opposite scattering laser signal of laser signal of emitter output, handles the scattering laser signal, and exports to handling Circuit；The input terminal of the process circuit is connected with the output terminal of the photodetector, for the signal got to be filtered, Sent after Shape correction to processor；The input terminal of the processor is connected with the output terminal of the signal processing circuit, output terminal and the administrative unit phase Even, for being handled according to distributed optical fiber temperature measurement principle the signal after filter shape, it is calculated and swashs with the scattering The temperature signal and position signal that optical signal matches.
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| CN106678550A (en) * | 2016-12-01 | 2017-05-17 | 广东工业大学 | Water pipe leakage monitoring device and monitoring method based on distributed optical fiber sensing |
| CN107842714B (en) * | 2017-11-23 | 2019-03-22 | 中国石油化工股份有限公司 | A kind of the oil pipeline defect experimental system and method for temperature-measuring system of distributed fibers |
| CN108426173A (en) * | 2018-04-27 | 2018-08-21 | 钦州学院 | A kind of buried natural gas line security protection early warning system |
| IT201800006717A1 (en) * | 2018-06-27 | 2019-12-27 | Method of monitoring a continuous pipeline, monitoring device and assembly comprising said device |
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Inventor after: Song Bin Inventor after: Wang Chao Inventor after: Wang Haifeng Inventor after: Liu Jia Inventor after: Guo Jian Inventor before: Song Bin Inventor before: Liu Jia Inventor before: Guo Jian Inventor before: Wang Haifeng |
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Effective date of registration: 20210208 Address after: 710065 No. 32 Tuanjie South Road, Xi'an High-tech Zone, Shaanxi Province Patentee after: Xi'an Sunward Aerospace Material Co.,Ltd. Address before: 163316 No.7, Yifeng Road, high tech Zone, Daqing City, Heilongjiang Province Patentee before: DAQING SUNVALOR AEROSPACE TECHNOLOGY Co.,Ltd. |