CN110907506B - Verification device and verification method for oil-water mixing sensor - Google Patents
Verification device and verification method for oil-water mixing sensor Download PDFInfo
- Publication number
- CN110907506B CN110907506B CN201911232722.9A CN201911232722A CN110907506B CN 110907506 B CN110907506 B CN 110907506B CN 201911232722 A CN201911232722 A CN 201911232722A CN 110907506 B CN110907506 B CN 110907506B
- Authority
- CN
- China
- Prior art keywords
- oil
- water mixing
- annunciator
- water
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/221—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance by investigating the dielectric properties
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a calibration device and a calibration method for an oil-water mixing sensor, relates to the field of calibration of oil-water mixing annunciators, and designs a special liquid distribution area capable of distributing an oil-water mixture with accurate proportion. The invention designs a special liquid preparation area, can prepare oil and water mixture with accurate proportion, is also provided with a stirring rotor, the stirring rotor can sufficiently stir the oil-water mixture, and is provided with a dense grid and a sparse grid which are uniformly distributed, and the dense grid isolates an oil-water mixing signal device and the stirring rotor, so that the phenomenon that the rotor does not work because the oil-water mixing signal device clamps the stirring rotor is prevented; the sparse grid is used for preventing the stirring rotor from forming vortex when stirring the oil-water mixed liquid, and the measurement is influenced. The test area of the invention can measure the switching value and analog output of the oil-water mixing annunciator.
Description
Technical Field
The invention relates to the field of verification of oil-water mixing annunciators, in particular to a verification device and a verification method for an oil-water mixing sensor.
Background
The current oil-water mixing signal sensor used in the hydropower plant is mainly used for detecting the water content of lubricating oil in an oil groove, and the current main stream oil-water mixing signal sensor has two types, namely, only switching value output, and when the water content in the lubricating oil exceeds 10%, a switching value alarm signal is sent to a monitoring system; the other is that the switching value output and the analog value output are adopted, when the water content in the lubricating oil exceeds 10%, a switching value alarm signal is sent out, and when the water content is 0% -10%, an analog value signal of (4-20) mA is output.
The measuring principle of the oil-water mixing signal sensor is that the change of the dielectric constant of the oil-water mixture is measured through two electrodes to reflect the water content in the oil, and when the water content in the oil is changed from small to large, the dielectric constant of the mixture is changed from large to small, so that the water content in the oil is judged.
At present, no related products are available on the market for checking the oil-water mixing signal device, and a common simple checking method is to arrange a certain proportion of oil and water in a container, manually stir the mixed liquid in the container to a certain extent, then place the oil-water mixing signal sensor in the container, simultaneously supply power to the oil-water mixing signal device, and then measure the output of the oil-water mixing signal device by using a universal meter.
Disclosure of Invention
In order to realize the verification of the oil-water mixing annunciator, the invention provides a verification device and a verification method for an oil-water mixing sensor, and the specific technical scheme is as follows:
An oil-water mixing annunciator verification device comprises a transparent container, a valve, a pipeline, a container with a stirrer, a grid, a measurement power supply circuit, a light emitting diode and a nixie tube;
The lower end of the transparent container is connected with one end of a valve, the other end of the valve is connected with one end of a pipeline, the other end of the pipeline is connected with a container with a stirrer, the grid is arranged in the container with the stirrer, and the measurement power supply circuit is electrically connected with the container with the stirrer; the light emitting diode and the nixie tube are arranged on the container with the stirrer;
the container with the stirrer comprises a stirring rotor and a stirring motor, wherein the stirring rotor is connected with the stirring motor, and a rotating shaft of the stirring motor is electrically connected with a measurement power supply circuit;
The transparent container is used for measuring a certain amount of oil or water; the valve and the pipeline are used for guiding oil or water into the container with the stirrer; the stirring rotor of the container with the stirrer is used for uniformly stirring the oil or water led in from the valve and the pipeline to obtain an oil-water mixed solution; the stirring motor is used for driving the stirring rotor to rotate; the dense grid is used for isolating the oil-water mixing annunciator and the stirring rotor and preventing the stirring rotor from being blocked by the oil-water mixing annunciator to cause the rotor to be not operated, and the sparse grid is used for preventing a container with a stirrer from forming vortex during stirring; the measuring power supply circuit is used for supplying power to the oil-water mixing annunciator and measuring an output signal of the oil-water mixing annunciator; the light emitting diode is used for displaying a switching value signal output by the oil-water mixing signal device, and the nixie tube is used for displaying the numerical value of an analog value signal output by the oil-water mixing sensor.
Further, the transparent container is a transparent container with scales, the transparent container with scales is provided with a liquid distribution area, the top of the transparent container with scales is provided with a liquid injection hole, and oil and water are injected into the liquid distribution area of the transparent container with scales through the liquid injection hole, and the injection quantity of the oil and the water is controlled according to the scales.
Further, the container with the stirrer is of a box structure and is provided with a checking hole, a checking area, a testing area and a working area; the verification hole is arranged at the top of the container with the stirrer; the check area is arranged below the check hole; the oil-water mixing annunciator is placed in a verification area of a container with a stirrer through a verification hole; the test area is arranged on the side face of the container with the stirrer and comprises a test terminal, the test terminal is connected with the oil-water mixing signal device, the light emitting diode and the nixie tube are arranged in the test area and are connected with the test terminal, and the test terminal is used for receiving the switching value signal and the analog value signal output by the verified oil-water mixing signal device and transmitting the received switching value signal and analog value signal to the light emitting diode and the nixie tube; the working area is arranged at the bottom of the container with the stirrer, and the oil and the water are mixed in the working area to obtain the oil-water mixed liquid.
Further, the dense grid and the sparse grid are both arranged in a checking area of the container with the stirrer, the dense grid is arranged at the lower end of the sparse grid, and the dense grid is used for isolating the oil-water mixing annunciator and the stirring rotor so as to prevent the stirring rotor from being out of work because the oil-water mixing annunciator clamps the stirring rotor; the sparse grid is used for preventing the stirring rotor from forming vortex when stirring the oil-water mixed liquid, and measuring is influenced.
Further, the measurement power supply circuit adopts an existing 220V AC-24V DC switching power supply.
The invention also provides a verification method for the oil-water mixing sensor, which comprises the following steps:
Step S1, injecting a certain amount of oil into a liquid preparation area of a transparent container through a liquid injection hole, opening a valve, introducing the oil into a working area of the container with a stirrer through a pipeline, and closing the valve; and then according to the scale of the liquid preparation area of the transparent container, a certain amount of water is injected proportionally, and the water is introduced into the working area of the container with the stirrer through a pipeline by opening a valve. At this time, an oil-water mixture is obtained;
s2, placing an oil-water mixing signal device into a verification area, and starting a stirring rotor of the device;
Step S3, the output end of the measurement power supply circuit is connected to the power input end of the oil-water mixing annunciator, and the signal output terminal on the oil-water mixing annunciator is connected to the signal input terminal of the checking device;
And S4, checking the oil-water mixing annunciator according to the on-off state of the light-emitting diode and the numerical value displayed by the digital tube.
Further, the signals of the oil-water mixing signal device are divided into two types, wherein one type is a switching value signal, the output is a dry contact point, and the other type is an analog value signal of 4-20 mA. When only the switching value is output, the switching value output end of the oil-water mixing annunciator is connected to the switching value input end of the checking device, and the analog value input terminal of the checking device is empty; when the oil-water mixed annunciator has both switching value output and analog value output, the outputs are respectively connected to a switching value input terminal and an analog value input terminal of the verification device.
Further, the step S4 is based on the verification of the oil-water mixed annunciator according to the on/off of the light emitting diode and the numerical value displayed by the digital tube, and the verification is as follows:
when the water content of the mixed liquid of the oil and the water is greater than the water content fixed value arranged in the oil-water mixing annunciator, outputting a switching value signal when the water content is greater than 5%;
When the oil-water mixing annunciator outputs a switching value signal, a light emitting diode on the checking device is lightened at the moment; the diode is lightened to indicate that the fixed value alarm output function of the oil-water mixing annunciator is qualified; the 4-20 mA analog quantity signal output by the oil-water mixing annunciator corresponds to the water content of 0-10%, and the two are in linear corresponding relation;
When the water content of the mixed liquid is 5%, the oil-water mixing annunciator outputs 12mA, at the moment, the analog quantity signal received by the analog quantity input terminal of the checking device is 12mA, the numerical value displayed by the nixie tube is 12mA, when the error is within the allowable range, the analog quantity output function of the oil-water mixing annunciator is qualified, and when the fixed value alarm output function and the analog quantity output function of the oil-water mixing annunciator are both qualified, the oil-water mixing annunciator is judged to be qualified.
The beneficial effects of the invention are as follows:
1. the invention designs a special liquid preparation area, and can prepare oil and water mixture with accurate proportion.
2. The invention is provided with the stirring rotor, the stirring rotor can sufficiently stir the oil-water mixture, and is provided with the uniformly distributed dense grids and the uniformly distributed sparse grids, the dense grids can isolate the oil-water mixing signal device from the stirring rotor, and the phenomenon that the rotor does not work because the oil-water mixing signal device clamps the stirring rotor is prevented; the sparse grid is used for preventing the stirring rotor from forming vortex when stirring the oil-water mixed liquid, and the measurement is influenced.
3. The invention is provided with a test area, can measure the switching value and analog output of the oil-water mixing annunciator, when the oil-water mixing annunciator has the switching value output, the light emitting diode is lightened, and when the oil-water mixing annunciator has the 4-20 mA signal output, the nixie tube has corresponding numerical display.
4. The checking method is simple, convenient and effective, and can accurately check whether the oil-water mixed annunciator works normally.
Drawings
FIG. 1 is a schematic diagram of the structure of the invention;
wherein: 1: a transparent container; 2: a valve; 3: a pipe; 4: a container with a stirrer; 41: a stirring rotor; 42: a test terminal; 51: a dense grid; 52: and (5) thinning the grid.
Fig. 2 is a schematic circuit diagram of the inventive device.
Detailed Description
For a better understanding of the present invention, reference is made to the following description of the invention, taken in conjunction with the accompanying drawings and specific examples:
example 1:
the verification device of the oil-water mixing annunciator comprises a transparent container 1, a valve 2, a pipeline 3, a container 4 with a stirrer, a dense grid 51, a sparse grid 52, a measurement power supply circuit, a light emitting diode D1 and a nixie tube L, wherein the verification device is shown in fig. 1 and 2;
The transparent container 1 is a transparent container with scales, the transparent container with scales is provided with a liquid distribution area 7, the top of the transparent container with scales is provided with a liquid injection hole 6, oil and water are injected into the liquid distribution area 7 of the transparent container with scales through the liquid injection hole 6, and the injection quantity of the oil and the water is controlled according to the scales.
The lower end of the transparent container 1 is provided with a hole, one end of the valve 2 is connected with the transparent container 1 through the hole at the lower end of the transparent container 1, the other end of the valve 2 is connected with one end of the pipeline 3, the other end of the pipeline 3 is connected with the container 4 with the stirrer, the dense grid 51 and the sparse grid 52 are both arranged in the container 4 with the stirrer, and the measuring power supply circuit is connected with the container 4 with the stirrer; the light-emitting diode D1 and the nixie tube L are arranged on the container 4 with the stirrer;
The container 4 with the stirrer comprises a stirring rotor 41 and a stirring motor M, wherein the stirring rotor 41 is connected with the stirring motor M, and the rotating shaft of the stirring motor M is electrically connected with a measuring power supply circuit.
The transparent container 1 is used for measuring a certain amount of oil or water; a valve 2, a pipe 3 for introducing oil or water into a vessel 4 with a stirrer; the stirring rotor 41 of the container 4 with a stirrer is used for uniformly stirring the oil or water introduced from the valve 2 and the pipeline 3 to obtain an oil-water mixed solution; the stirring motor M is used for driving the stirring rotor 41 to rotate; the dense grid 51 is used for isolating the oil-water mixing annunciator from the stirring rotor 41, preventing the stirring rotor 41 from being blocked by the oil-water mixing annunciator to cause the rotor to be inoperative, and the sparse grid 52 is used for preventing vortex from being formed when the container 4 with the stirrer is stirred; the measuring power supply circuit is used for supplying power to the oil-water mixing signal device and measuring an output signal of the oil-water mixing signal device; the light-emitting diode D1 is used for displaying a switching value signal output by the oil-water mixing signal device, and the nixie tube L is used for displaying a numerical value of an analog value signal output by the oil-water mixing sensor.
The container 4 with the stirrer is of a box structure and is provided with a checking hole 9, a checking area 11, a testing area 10 and a working area 8; the verification hole 9 is arranged at the top of the container 4 with the stirrer; the check area 11 is arranged below the check hole 9; the oil-water mixing signal device is placed in the checking area 11 of the container 4 with the stirrer through the checking hole 9; the test area 10 is arranged on the side edge of the container 4 with the stirrer, the test area 10 comprises a test terminal 42, the test terminal 42 is connected with the oil-water mixing annunciator, the light-emitting diode D1 and the nixie tube L are arranged in the test area 10, the light-emitting diode D1 and the nixie tube L are connected with the test terminal 42, and the test terminal 42 is used for receiving a switching value signal and an analog value signal output by the verified oil-water mixing annunciator and transmitting the received switching value signal and analog value signal to the light-emitting diode D1 and the nixie tube L; the working area 8 is arranged at the bottom of the container 4 with the stirrer, and the oil and the water are mixed in the working area 8 to obtain an oil-water mixed solution.
The dense grid 51 and the sparse grid 52 are both arranged in the checking area 11 of the container 4 with the stirrer, the dense grid 51 is arranged at the lower end of the sparse grid 52, and the dense grid 51 is used for isolating the oil-water mixing annunciator from the stirring rotor 41 so as to prevent the stirring rotor 41 from being blocked by the oil-water mixing annunciator and from being disabled; the open mesh 52 prevents the stirring rotor 41 from forming a vortex when stirring the oil-water mixture, affecting the measurement.
The measurement power supply circuit adopts an existing 220V AC-24V DC switching power supply.
A method for calibrating an oil-water sensor, comprising the steps of:
Step S1, injecting a certain amount of oil into a liquid preparation area 7 of a transparent container 1 through a liquid injection hole, opening a valve 2, introducing the oil into a working area 8 of a container 4 with a stirrer through a pipeline 3, and closing the valve 2; then according to the scale of the liquid preparation area 7 of the transparent container 1, a certain amount of water is injected proportionally, and the valve 2 is opened to introduce the water into the working area 8 of the container 4 with the stirrer through the pipeline 3. At this time, an oil-water mixture was obtained.
In step S2, an oil-water mixing annunciator is placed into the verification zone 11 while the stirring rotor 41 of the device is activated.
Step S3, the output end of the measurement power supply circuit is connected to the power input end of the oil-water mixing annunciator, and the signal output terminal on the oil-water mixing annunciator is connected to the signal input terminal of the checking device; the signal of the oil-water mixing signal device is divided into two types, one is a switching value signal, the output is a dry contact point, and the other is an analog value signal of 4-20 mA. When only the switching value is output, the switching value output end of the oil-water mixing annunciator is connected to the switching value input terminal B of the checking device, and the analog value input terminal A of the checking device is empty; when the oil-water mixing annunciator has both switching value output and analog value output, the outputs are respectively connected to a switching value input terminal B and an analog value input terminal A of the verification device.
Step S4, checking the oil-water mixing annunciator according to the on-off state of the light-emitting diode and the numerical value displayed by the digital tube: the specific verification basis is as follows:
when the water content of the mixed liquid of the oil and the water is greater than the water content fixed value arranged in the oil-water mixing annunciator, outputting a switching value signal when the water content is greater than 5%;
When the oil-water mixing annunciator outputs a switching value signal, a light emitting diode on the checking device is lightened at the moment; the diode is lightened to indicate that the fixed value alarm output function of the oil-water mixing annunciator is qualified; the 4-20 mA analog quantity signal output by the oil-water mixing annunciator corresponds to the water content of 0-10%, and the two are in linear corresponding relation;
When the water content of the mixed liquid is 5%, the oil-water mixing annunciator outputs a 12mA analog signal, at the moment, the analog signal received by an analog input port of the checking device is also 12mA, the numerical value displayed by the nixie tube is 12mA, when the error is within the allowable range, the analog output function of the oil-water mixing annunciator is qualified, and when the fixed value alarm output function and the analog output function of the oil-water mixing annunciator are both qualified, the oil-water mixing annunciator is judged to be qualified.
The present invention is not limited to the specific embodiments described above, but is to be construed as being limited to the preferred embodiments of the present invention, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. The verification device for the oil-water mixing annunciator is characterized by comprising a transparent container (1), a valve (2), a pipeline (3), a container (4) with a stirrer, a dense grid (51), a sparse grid (52), a measurement power supply circuit, a light emitting diode (D1) and a nixie tube (L);
The transparent container (1) is a transparent container with scales, the transparent container with scales is provided with a liquid distribution area (7), the top of the transparent container with scales is provided with a liquid injection hole (6), oil and water are injected into the liquid distribution area (7) of the transparent container with scales through the liquid injection hole (6), and the injection quantity of the oil and the water is controlled according to the scales;
the lower end of the transparent container (1) is connected with one end of a valve (2), the other end of the valve (2) is connected with one end of a pipeline (3), the other end of the pipeline (3) is connected with a container (4) with a stirrer, the dense grid (51) and the sparse grid (52) are both arranged in the container (4) with the stirrer, and the measurement power supply circuit is electrically connected with the container (4) with the stirrer; the light-emitting diode (D1) and the nixie tube (L) are arranged on the container (4) with the stirrer;
The container (4) with the stirrer comprises a stirring rotor (41) and a stirring motor (M), wherein the stirring rotor (41) is connected with a rotating shaft of the stirring motor (M), and the stirring motor (M) is electrically connected with a measurement power supply circuit;
The container (4) with the stirrer is of a box structure and is provided with a checking hole (9), a checking area (11), a testing area (10) and a working area (8); the verification hole (9) is arranged at the top of the container (4) with the stirrer; the check area (11) is arranged below the check hole (9); the oil-water mixing annunciator is placed in a check area (11) of a container (4) with a stirrer through a check hole (9); the test area (10) is arranged on the side edge of the container (4) with the stirrer, the test area (10) comprises a test terminal (42), the test terminal (42) is connected with the oil-water mixing annunciator, the light emitting diode (D1) and the nixie tube (L) are arranged in the test area (10), the light emitting diode (D1) and the nixie tube (L) are connected with the test terminal (42), and the test terminal (42) is used for receiving a switching value signal and an analog value signal output by the checked oil-water mixing annunciator and transmitting the received switching value signal and analog value signal to the light emitting diode (D1) and the nixie tube (L); the working area (8) is arranged at the bottom of the container (4) with the stirrer, and oil and water are mixed in the working area (8) to obtain an oil-water mixed solution.
2. The verification device for an oil-water mixing annunciator according to claim 1, wherein the dense grid (51) and the sparse grid (52) are both arranged in a verification area (11) of a container (4) with a stirrer, the dense grid (51) is arranged at the lower end of the sparse grid (52), and the dense grid (51) is used for isolating the oil-water mixing annunciator from a stirring rotor (41) so as to prevent the stirring rotor (41) from being disabled due to the clamping of the oil-water mixing annunciator; the sparse grid (52) is used for preventing the stirring rotor (41) from forming vortex when stirring the oil-water mixed liquid, and measuring is influenced.
3. The verification device for oil-water mixing annunciators of claim 1, wherein the measurement power supply circuit employs a 220V AC to 24V DC switching power supply.
4. A method for calibrating an oil-water sensor, comprising the steps of:
Step S1, injecting a certain amount of oil into a liquid preparation area (7) of a transparent container (1) through a liquid injection hole (6), opening a valve (2), introducing the oil into a working area (8) of a container (4) with a stirrer through a pipeline (3), and closing the valve (2); then according to the scale of the liquid preparation area (7) of the transparent container (1), a certain amount of water is injected proportionally, a valve (2) is opened to introduce the water into the working area (8) of the container (4) with the stirrer through a pipeline (3), and at the moment, the oil-water mixed liquid is obtained;
S2, placing an oil-water mixing annunciator into a verification area (11), and simultaneously starting a stirring rotor (41) of the device;
Step S3, the output end of the measurement power supply circuit is connected to the power input end of the oil-water mixing annunciator, and the signal output terminal on the oil-water mixing annunciator is connected to the signal input terminal of the checking device;
and S4, checking the oil-water mixing annunciator according to the on-off state of the light-emitting diode (D1) and the numerical value displayed by the digital tube (L).
5. The method according to claim 4, wherein the signal input terminals of the checking device in the step S3 include an analog input terminal (a) and a switching value input terminal (B), and the signal of the oil-water mixing signal device is divided into two types, one is a switching value signal and the other is an analog signal; when only the switching value is output, the switching value output end of the oil-water mixing annunciator is connected to the switching value input terminal (B) of the checking device, and the analog value input terminal (A) of the checking device is empty; when the oil-water mixing annunciator has both switching value output and analog value output, the outputs are respectively connected to a switching value input terminal (B) and an analog value input terminal (A) of the verification device.
6. The method for checking an oil-water mixing sensor according to claim 4, wherein the step S4 checks the oil-water mixing annunciator according to the on/off of the light emitting diode (D1) and the numerical value displayed by the digital tube (L) according to the following criteria:
when the water content of the mixed liquid of the oil and the water is greater than the water content fixed value arranged in the oil-water mixing annunciator, outputting a switching value signal when the water content is greater than 5%;
when the oil-water mixing annunciator outputs a switching value signal, a light emitting diode (D1) on the checking device is lightened at the moment; the diode is lightened to indicate that the fixed value alarm output function of the oil-water mixing annunciator is qualified; the 4-20 mA analog quantity signal output by the oil-water mixing annunciator corresponds to the water content of 0-10%, and the two are in linear corresponding relation;
when the water content of the mixed liquid is 5%, the oil-water mixing annunciator outputs 12mA, at the moment, the analog signal received by the analog input terminal (A) of the checking device is 12mA, the numerical value displayed by the nixie tube (L) is 12mA, when the error is within the allowable range, the analog output function of the oil-water mixing annunciator is qualified, and when the fixed value alarm output function and the analog output function of the oil-water mixing annunciator are both qualified, the oil-water mixing annunciator is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911232722.9A CN110907506B (en) | 2019-12-05 | 2019-12-05 | Verification device and verification method for oil-water mixing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911232722.9A CN110907506B (en) | 2019-12-05 | 2019-12-05 | Verification device and verification method for oil-water mixing sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110907506A CN110907506A (en) | 2020-03-24 |
| CN110907506B true CN110907506B (en) | 2024-09-27 |
Family
ID=69822520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911232722.9A Active CN110907506B (en) | 2019-12-05 | 2019-12-05 | Verification device and verification method for oil-water mixing sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110907506B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029246B (en) * | 2021-03-17 | 2023-07-14 | 中国长江电力股份有限公司 | Test system and test method for oil-water mixing monitoring sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211235640U (en) * | 2019-12-05 | 2020-08-11 | 大唐水电科学技术研究院有限公司 | Calibration device for oil-water mixed annunciator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2236584C1 (en) * | 2002-12-17 | 2004-09-20 | Открытое акционерное общество "Акционерная компания ОЗНА" | Method and device for measuring oil debit |
| CN105158118A (en) * | 2015-06-03 | 2015-12-16 | 凌胜军 | Redundancy detection device for detecting water in oil |
| CN208488460U (en) * | 2018-06-19 | 2019-02-12 | 中国长江电力股份有限公司 | Suitable for installing the device of sensor for sensing water content mixed in oil |
| CN209027643U (en) * | 2018-12-13 | 2019-06-25 | 国网湖南省电力有限公司 | Multifunctional liquid level calibration platform |
-
2019
- 2019-12-05 CN CN201911232722.9A patent/CN110907506B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211235640U (en) * | 2019-12-05 | 2020-08-11 | 大唐水电科学技术研究院有限公司 | Calibration device for oil-water mixed annunciator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110907506A (en) | 2020-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211235640U (en) | Calibration device for oil-water mixed annunciator | |
| CN110907506B (en) | Verification device and verification method for oil-water mixing sensor | |
| CN214426799U (en) | External ultrasonic gas tank liquid level detection device | |
| CN204086149U (en) | Water soluble acid tester | |
| CN201665601U (en) | Ultrapure water machine with water leakage detection warning function | |
| CN209148083U (en) | Magnetic double level gauge with the reflexive feedback system of pressure | |
| CN202583035U (en) | Oxygen meter adaptive to different altitudes | |
| CN103018697B (en) | A kind of Multifunctional multi-epitope voltage monitor calibrator | |
| CN209979432U (en) | Indicating system | |
| CN204881767U (en) | Measure device and car of fuel liquid level | |
| CN216645512U (en) | Liquid level detection device | |
| CN211783764U (en) | Calibration device for magnetic turning plate liquid level sensor | |
| CN201449390U (en) | Crude oil water-bearing detection apparatus | |
| CN213301401U (en) | Pressure-dividing type nuclear power station spent fuel pool liquid level measuring meter | |
| CN211645202U (en) | Detection apparatus for residual medicine in running water | |
| CN112414737B (en) | Multifunctional overflow test device | |
| CN203163823U (en) | Liquid level transmitter for liquefied natural gas | |
| CN208297483U (en) | Water quality detection and analysis device | |
| CN209821197U (en) | Calibration device of oil water mixing instrument | |
| CN217765143U (en) | Power station water leads oil groove and goes up oil level measuring device | |
| CN208140911U (en) | A kind of multi-functional safety comprehensive intelligence testing instrument calibrating installation | |
| CN212433084U (en) | Device for measuring gas alarm | |
| CN2583663Y (en) | Water quality ammonia nitrogen on line monitering apparatus | |
| CN112697959A (en) | High-precision quantitative titration method and device applied to water quality online monitoring equipment | |
| CN2279589Y (en) | Weir trough type ultrasonic wave open channel flowmeter integrated with sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |