CN211856550U - Device for calibrating or calibrating geochemical comprehensive sensing system under high pressure - Google Patents
Device for calibrating or calibrating geochemical comprehensive sensing system under high pressure Download PDFInfo
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- CN211856550U CN211856550U CN202020061474.8U CN202020061474U CN211856550U CN 211856550 U CN211856550 U CN 211856550U CN 202020061474 U CN202020061474 U CN 202020061474U CN 211856550 U CN211856550 U CN 211856550U
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Abstract
The embodiment of the utility model discloses a device for calibrating or calibrating a geochemical comprehensive sensing system under high pressure, which comprises a bin body for forming a sealed environment and applying pressure to the interior of the bin body through a high-pressure fluid pump, a pressure self-adaptive bin and a geochemical comprehensive sensor system which are arranged in the bin body, wherein the pressure self-adaptive bin and the geochemical comprehensive sensor system are connected through a pressure-resistant pipe, a sealed pipeline for supplying standard solution to the pressure self-adaptive bin and a watertight cable for supplying power to the geochemical comprehensive sensor system are arranged on the inner wall of the bin body, the pressure conduction law is taken as the main principle basis, the pressure self-adaptive bin is internally provided with the pressure self-adaptive bin, the pressure self-adaptive bin is connected with the geochemical comprehensive sensing system to be tested through the pressure-resistant pipe, the pressure in the pressure self-adaptive bin is the same as the pressure value applied by the large pressure bin, the instrument is calibrated or calibrated through the limited standard solution under the pressure condition, the realization process is safe, stable, fast, efficient, simple, convenient and fast.
Description
Technical Field
The embodiment of the utility model provides a relate to model test technical field, concretely relates to high pressure subscript is fixed or is calibrated the device of synthesizing sensing system.
Background
The natural gas hydrate is a future super clean energy with huge potential, wide distribution range, huge reserve scale and high energy density, and has been widely paid attention and paid attention to governments, academic circles and business circles of all countries in the world.
The content abnormality of hydrocarbon gas and other gases in seawater is one of important identification marks for the existence of natural gas hydrate, and the real-time detection of the content abnormality of the gases in the seawater can provide clues and basis for the detailed investigation and exploration of hydrate resources.
Dissolved gas in seawater is multi-component mixed gas, deep seawater and an instant detection method for gas content in seawater are the leading subjects of current ocean scientific instrument research and are the hot spots and focuses of ocean technical field research in recent years.
At present, a method for calibrating or calibrating a land-based integrated sensing system by a limited standard solution under high pressure is not reported, and an important premise for ensuring the measurement accuracy of the system is that the system can be accurately calibrated, and a necessary condition for accurately calibrating the system by the standard solution is that the working environment of the standard solution must be completed under high pressure.
The synchronous comprehensive sensing system is used for detecting an aqueous solution containing water-soluble gas under high pressure, the solubility of the gas in the solution is influenced by pressure, and the degassing efficiency of an instrument is closely related to the pressure, so that the standard solution is required to be placed under the high-pressure condition when the system is calibrated or calibrated by using the standard solution, and the accuracy and precision of the detection of the instrument can be ensured.
And the localization system has a large volume, and needs a pressure water sump with a large volume to accommodate, and in addition, because the price of the standard solution is very expensive, the whole large pressure water sump cannot be filled with the standard solution for testing.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a device of sensor system is synthesized to high pressure subscript standard or calibration geology to pressure conduction law is the leading principle foundation, through built-in pressure self-adaptation standard liquid storehouse in big water pressure storehouse, and be connected with the sensor system is synthesized to the geology that awaits measuring with withstand voltage pipe with self-adaptation standard liquid storehouse, make pressure self-adaptation standard liquid storehouse internal pressure the same with the pressure value that big water pressure storehouse was executed, realize taking the pressure condition down and mark or calibrate the instrument through limited standard solution, solved because the volume ratio of localization system itself is great, need great volumetric pressure water storehouse side to hold, in addition because the price of standard solution is very expensive, can not be full of whole big pressure water storehouse standard solution and carry out the problem of testing.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
a device for calibrating or calibrating a geochemical comprehensive sensing system under high pressure comprises a bin body used for forming a sealed environment and applying pressure to the interior of the bin body through a high-pressure fluid pump, a pressure self-adaptive bin and a geochemical comprehensive sensor system which are arranged in the bin body, wherein the pressure self-adaptive bin and the geochemical comprehensive sensor system are connected through a pressure-resistant pipe, a sealed pipeline for supplying standard solution to the pressure self-adaptive bin and a watertight cable for supplying power to the geochemical comprehensive sensor system are arranged on the inner wall of the bin body.
As a preferred scheme of the present invention, the integrated sensor system specifically includes a sampling analysis unit, a sampling tube for providing in-situ parameters for the sampling analysis unit, and a ringing unit connected in parallel to the sampling tube.
As a preferable scheme of the present invention, the ringing unit includes a constant temperature bath, and a spiral tube and a film sample injection cavity which are located in the constant temperature bath and are connected in series in sequence, an output end of the film sample injection cavity is connected to the sampling tube through a pipeline, and an input end of the spiral tube is connected to an input end of the sampling tube through a pipeline.
As a preferable scheme of the invention, the pressure self-adaptive bin comprises a standard liquid cavity hermetically connected with a sampling tube through a pressure-resistant tube, and a buffer cavity communicated with the inner environment of the bin body through an external pressure port, wherein a permeation cavity is arranged on one side of the buffer cavity, a permeation membrane is arranged on the contact surface of the permeation cavity and the inner environment of the bin body, a first sealing piston is arranged between the standard liquid cavity and the buffer cavity, and the first sealing piston is connected with a second sealing piston arranged in the permeation cavity through a spring.
As a preferable scheme of the present invention, an isolation plug axially deformed with pressure change in the permeation chamber is arranged between the permeation chamber and the buffer chamber, the spring is fixedly connected with the isolation plug, and a pressure sensor for monitoring pressure change in the permeation chamber is arranged on a surface of the second sealing piston facing the permeation membrane.
The utility model discloses an embodiment has following advantage:
the utility model discloses use the pressure conduction law as the leading principle foundation, through built-in pressure self-adaptation mark liquid storehouse in big water pressure storehouse, and be connected self-adaptation mark liquid storehouse and the integrated sensing system of the geology that awaits measuring with withstand voltage pipe, it is the same with the pressure value that big water pressure storehouse was executed to make pressure self-adaptation mark liquid storehouse internal pressure, the realization is pressed and is markd or calibrate the instrument through limited standard solution under the area condition, and have safety and stability, high efficiency, green, low cost, characteristics such as simple and convenient swift, be fit for most needs to satisfy and press the test that mark liquid condition accomplished calibration or calibration instrument.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
FIG. 1 is a block diagram of an apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a sample analysis unit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a pressure adaptive bin according to an embodiment of the present invention.
In the figure:
1-a cabin body; 2-pressure adaptive bin; 3-a geosynthetic sensor system; 4-pressure resistant pipe; 5-sealing the pipeline; 6-watertight cable; 7-a sampling analysis unit; 8-a sampling tube; 9-a damped oscillation unit;
201-a label liquid cavity; 202-external pressure port; 203-a buffer chamber; 204-a permeate chamber; 205-a first sealing piston; 206-a spring; 207-second sealing piston; 208-an isolation plug; 209-a permeable membrane; 210-a pressure sensor;
701-a backpressure valve; 702-a sampling pipe; 703-water pressure sensing means;
901-constant temperature bath; 902-a spiral pipe; 903-membrane sample injection cavity.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figures 1, 2 and 3, the invention provides a device for calibrating or calibrating a geochemical comprehensive sensing system under high pressure, which comprises a bin body 1 for forming a sealed environment and applying pressure to the interior of the bin body by a high-pressure fluid pump, a pressure self-adaptive bin 2 and a geochemical comprehensive sensor system 3 which are arranged in the bin body 1, a pressure-resistant pipe 4 for connecting the pressure self-adaptive bin 2 and the geochemical comprehensive sensor system 3, a sealed pipeline 5 for supplying standard solution to the pressure self-adaptive bin 2 and a watertight cable 6 for supplying power to the geochemical comprehensive sensor system 3, wherein the sealed pipeline 5 is arranged on the inner wall of the bin body 1.
The invention is based on the pressure conduction law as the main principle, a pressure self-adaptive standard liquid bin is arranged in a large hydraulic pressure bin, and a pressure-resistant pipe is used for connecting the self-adaptive standard liquid bin with a to-be-detected geological comprehensive sensing system, so that the pressure in the pressure self-adaptive standard liquid bin is the same as the pressure value applied by the large hydraulic pressure bin, and the instrument can be calibrated by a limited standard solution under the condition of pressure.
When the pressure self-adaptive type liquid sampling device works, the standard liquid straight-through valve on the sealing pipeline 5 is opened, and the standard solution is led into the pressure self-adaptive type bin 2;
connecting a liquid outlet of the pressure self-adaptive bin 2 with a liquid inlet of the geological sensing system 3 by using a pressure pipe 4, and opening a straight-through valve on the pressure pipe 4;
the integrated sensor system 3 of the localization is connected with the power supply of the bin body 1 by a watertight cable 6 and a watertight connector;
after the standard liquid is injected, the top cover of the bin body 1 is closed;
the bin body 1 is pressurized by an external high-pressure fluid pump, and the test data of the geochemical comprehensive sensor system 3 is observed.
The geochemical comprehensive sensor system 3 specifically comprises a sampling analysis unit 7, a sampling pipe 8 for providing in-situ parameters for the sampling analysis unit 7, and a damped oscillation unit 9 connected to the sampling pipe 8 in parallel.
The damped oscillation unit 9 comprises a constant temperature bath 901, and a spiral pipe 902 and a membrane sample injection cavity 903 which are positioned in the constant temperature bath 901 and are sequentially connected in series, wherein the output end of the membrane sample injection cavity 903 is connected to the sampling pipe 8 through a pipeline, and the input end of the spiral pipe 902 is connected to the input end of the sampling pipe 8 through a pipeline.
The constant temperature of the sample entering the membrane sample injection cavity 903 is ensured to be constant through the constant temperature groove 901, and the transmission path of the standard liquid is increased through the spiral pipe 902.
The device mainly aims at the calibration or calibration of an offshore-bottom in-situ multi-parameter comprehensive sensing system or other instruments for measuring the content of dissolved gas or components in high-pressure solution, and a certain calibration error exists due to the fact that a certain concentration difference exists between seawater and standard solution and due to the fact that a certain osmotic pressure difference exists between a liquid medium used for pressurization and the standard solution in a bin body in the actual calibration process.
The pressure self-adaptive bin 2 comprises a standard liquid cavity 201 which is hermetically connected with a sampling tube 8 through a pressure pipe 4, and a buffer cavity 203 which is communicated with the inner environment of a bin body 1 through an external pressure port 202, wherein one side of the buffer cavity 203 is provided with a permeation cavity 204, the contact surface of the permeation cavity 204 and the inner environment of the bin body 1 is provided with a permeation membrane 209, a first sealing piston 205 is arranged between the standard liquid cavity 201 and the buffer cavity 203, and the first sealing piston 205 is connected with a second sealing piston 207 arranged in the permeation cavity 204 through a spring 206.
When the interior of the bin body 1 is pressurized, the buffer cavity 203 is kept consistent with the internal environment pressure of the bin body 1 through the external pressure port 202, and is changed along with the change of the pressure in the bin body 1, meanwhile, under the permeation action of the permeation membrane 209, the solution in the bin body 1 selectively enters the permeation cavity 204, so that the pressure in the permeation cavity 204 is changed, the position of the second sealing piston 207 is adjusted, the position of the second sealing piston 207 is changed, the position of the first sealing piston 205 is changed, so that the inaccuracy of standard calibration caused by the difference of the permeation pressures of the liquid and the standard liquid in the bin body 1 is counteracted, the calibration accuracy of the standard solution is improved, and the system error is reduced.
An isolation plug 208 which deforms axially along with pressure change in the permeation chamber 204 is arranged between the permeation chamber 204 and the buffer chamber 203, the spring 206 is fixedly connected with the isolation plug 208, and the surface of the second sealing piston 207 opposite to the permeation membrane 209 is provided with a pressure sensor 210 for monitoring pressure change in the permeation chamber 204.
The sampling analysis unit 7 comprises a sampling pipe 702 formed by two backpressure valves 701 and a water pressure sensing device 703 arranged at the output end of the sampling pipe 702, and the input end of the sampling pipe 702 is connected with the output end of the sampling pipe 8 through a three-way valve.
The bin body 1 is spherical or cylindrical, the pressure self-adaptive bin 2 and the geochemical comprehensive sensor system 3 are fixedly arranged in the bin body 1, and when pressure is applied to the bin body 1, the bin body 1 is spherical, uniform pressure can be applied to the interior of the pressure self-adaptive bin 2.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (5)
1. The device for calibrating or calibrating the geochemical comprehensive sensing system under the high pressure is characterized by comprising a bin body (1) which is used for forming a sealed environment and applies pressure to the interior of the bin body through a high-pressure fluid pump, a pressure self-adaptive bin (2) and a geochemical comprehensive sensor system (3) which are arranged in the bin body (1), and the pressure self-adaptive bin (2) and the geochemical comprehensive sensor system (3) are connected through a pressure pipe (4), wherein a sealed pipeline (5) which supplies standard solution to the pressure self-adaptive bin (2) and a watertight cable (6) which supplies power to the geochemical comprehensive sensor system (3) are arranged on the inner wall of the bin body (1).
2. Device for calibrating or calibrating a geochemical comprehensive sensor system under high pressure according to claim 1, characterized in that the geochemical comprehensive sensor system (3) particularly comprises a sampling and analyzing unit (7), a sampling pipe (8) for providing in-situ parameters for the sampling and analyzing unit (7) and a ringing unit (9) connected in parallel to the sampling pipe (8).
3. The device for calibrating or calibrating a comprehensive sensing system under high pressure according to claim 2, wherein the damping oscillation unit (9) comprises a constant temperature bath (901) and a spiral tube (902) and a membrane sample injection cavity (903) which are sequentially connected in series and are positioned in the constant temperature bath (901), the output end of the membrane sample injection cavity (903) is connected to the sampling tube (8) through a pipeline, and the input end of the spiral tube (902) is connected to the input end of the sampling tube (8) through a pipeline.
4. The device for calibrating or calibrating the comprehensive sensing system under high pressure according to claim 1, wherein the pressure adaptive bin (2) comprises a standard liquid chamber (201) which is connected with the sampling tube (8) in a sealing way through a pressure-resistant tube (4), and a buffer chamber (203) which is communicated with the inner environment of the bin body (1) through an external pressure port (202), one side of the buffer chamber (203) is provided with a permeation chamber (204), the permeation chamber (204) is provided with a permeable membrane (209) at the inner environment contact surface with the bin body (1), a first sealing piston (205) is arranged between the standard liquid chamber (201) and the buffer chamber (203), and the first sealing piston (205) is connected with a second sealing piston (207) arranged in the permeation chamber (204) through a spring (206).
5. The device for calibrating or calibrating the integrated sensing system under high pressure according to claim 4, wherein an isolating plug (208) which deforms axially along with the pressure change in the permeation chamber (204) is arranged between the permeation chamber (204) and the buffer chamber (203), the spring (206) and the isolating plug (208) are fixedly connected together, and a pressure sensor for monitoring the pressure change in the permeation chamber (204) is arranged on the surface of the second sealing piston (207) opposite to the permeation membrane (209).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020061474.8U CN211856550U (en) | 2020-01-13 | 2020-01-13 | Device for calibrating or calibrating geochemical comprehensive sensing system under high pressure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020061474.8U CN211856550U (en) | 2020-01-13 | 2020-01-13 | Device for calibrating or calibrating geochemical comprehensive sensing system under high pressure |
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| CN211856550U true CN211856550U (en) | 2020-11-03 |
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| CN202020061474.8U Active CN211856550U (en) | 2020-01-13 | 2020-01-13 | Device for calibrating or calibrating geochemical comprehensive sensing system under high pressure |
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