CN219016164U - Liquid level detection device for open flash point test process - Google Patents
Liquid level detection device for open flash point test process Download PDFInfo
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- CN219016164U CN219016164U CN202222936260.2U CN202222936260U CN219016164U CN 219016164 U CN219016164 U CN 219016164U CN 202222936260 U CN202222936260 U CN 202222936260U CN 219016164 U CN219016164 U CN 219016164U
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Abstract
The utility model discloses a liquid level detection device in an opening flash point testing process, wherein a lifting arm is rotatably arranged on a flash point tester main body, a flame holding device is arranged on the movable side of the lifting arm, the flame holding device is connected with a plasma ring through a connecting rod, one end of the connecting rod extends downwards to form a plasma ring which is connected with a sample temperature sensor, and the sample temperature sensor is arranged in parallel with the plasma ring; the inner side of the opening of the plasma ring is provided with a liquid level temperature detection sensor, and the bottom of the liquid level temperature detection sensor is level with the bottom of the plasma ring. The utility model ensures that the detection point of the liquid level temperature detection sensor and the bottom surface of the plasma ring are on the same horizontal plane, and can judge whether the liquid level reaches the plasma ring or not by comparing with the sample temperature sensor stretching into the sample, the flash point tester main body monitors the temperature signal acquired by the liquid level detection temperature sensor in real time, the flash point tester main body gives a prompt, the test is effectively stopped, the fire situation is prevented, and the safety of the flash point test is improved.
Description
Technical Field
The utility model relates to the technical field of petroleum flash point testing devices, in particular to a liquid level detection device in an opening flash point testing process.
Background
Test method GB/T3536-2008 determination of flash Point and fire Point of Petroleum products test samples are filled into oil cups to specified graduation marks. The sample is heated at a prescribed rate of temperature rise, and when the flash point is approached, the temperature rises at a constant rate, and at a prescribed temperature interval, a small igniter flame is passed over the sample surface at a prescribed rate, and the lowest temperature at which the vapor on the sample surface is flashed by the igniter flame is taken as the open cup flash point.
There are two general types of open flash point measuring instruments available in the market: the manual ignition type ignition device is very low in automation degree, after an experimenter reads a thermometer, the experimenter can read the ignition device by hand, and the ignition head is often scratched through a cup opening, so that the accuracy of a tested result is poor, and the influence of the proficiency of the experimenter operation is relatively large. Manual site meters are now being gradually replaced by automatic flash point meters. The other is an automatic open flash point tester, which can well control the temperature rising rate, can realize the automatic sweeping of the ignition head and detect flame through a plasma ring.
The liquid level of the tested sample can rise with the rise of the temperature in the process of heating up by adding the tested sample into the oil cup until reaching the scale mark. Different samples have different coefficients of thermal expansion, and the liquid level of samples having no coefficient of thermal expansion at the same temperature may be different. When the plasma ring is used for detection, the plasma ring needs to be above the liquid level, when some samples with larger thermal expansion coefficients are detected, the liquid level may exceed the plasma ring, if the plasma ring is soaked by the samples, a flash state cannot be detected, and when the automatic opening flash point tester cannot detect the flash point all the time, the temperature is continuously increased to be not up to the flash temperature, so that the fire is caused.
Therefore, the liquid level detection device in the open flash point test process is designed, so that the height of the liquid level is detected in the open flash point test process, judgment is made when the liquid level reaches a certain height, a prompt is given, the test is stopped, the situation of fire is prevented, and the device becomes a further improvement direction.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a liquid level detection device for an opening flash point test process.
The utility model provides the following technical scheme: the utility model provides an opening flash point test process liquid level detection device, includes flash point apparatus main part, its characterized in that: the flash point tester comprises a flash point tester body, and is characterized by further comprising a lifting arm, a flame holding device, a plasma ring, a temperature detection device and an oil cup, wherein the lifting arm is rotatably arranged on the flash point tester body, the flame holding device is arranged on the movable side of the lifting arm, the flame holding device is connected with the plasma ring through a connecting rod, and the temperature detection device is arranged on the plasma ring.
Preferably, the temperature detection device comprises a sample temperature sensor and a liquid level temperature detection sensor, one end of the connecting rod downwards extends out of the plasma ring to be connected with the sample temperature sensor, and the sample temperature sensor is arranged in parallel with the plasma ring; the inner side of the opening of the plasma ring is provided with a liquid level temperature detection sensor, and the bottom of the liquid level temperature detection sensor is level with the bottom of the plasma ring.
Preferably, the vertical distance between the sample temperature sensor and the liquid level temperature detection sensor is equal to the height of the oil cup graduation mark.
Preferably, one side of the oil cup is provided with a fire-point fire-extinguishing cover, and the coverage area of the fire-point fire-extinguishing cover is larger than the open area of the oil cup.
Preferably, a display screen is arranged on one side of the flash point tester main body, and the display screen, the sample temperature sensor and the liquid level temperature detection sensor are electrically connected with the flash point tester main body.
Preferably, a plurality of ventilation openings are uniformly formed in the other side of the flash point tester main body.
Preferably, a liquid receiving disc is arranged below the plasma ring, and the liquid receiving disc and the oil cup are arranged in parallel.
Compared with the prior art, the utility model has the following beneficial effects:
(1) According to the flash point tester, the lifting arm is rotatably arranged on the main body of the flash point tester, the flame holding device is arranged on the movable side of the lifting arm and connected with the plasma ring through the connecting rod, the plasma ring extends downwards from one end of the connecting rod and is connected with the sample temperature sensor, and the sample temperature sensor is arranged in parallel with the plasma ring; the liquid level temperature detection sensor is arranged on the inner side of the opening of the plasma ring, the bottom of the liquid level temperature detection sensor is flush with the bottom of the plasma ring, so that the detection point of the liquid level temperature detection sensor is on the same horizontal plane with the bottom of the plasma ring, whether the liquid level reaches the plasma ring can be judged by comparing the liquid level with the sample temperature sensor stretching into a sample, the flash point tester main body monitors the temperature signal acquired by the liquid level detection temperature sensor in real time, the flash point tester main body is compared with the temperature signal of the sample temperature sensor, the flash point tester main body starts to judge from 100 ℃, when the temperature difference is lower than 20 ℃, the liquid level can be considered to reach the bottom of the plasma ring, the flash point tester main body gives a prompt to stop heating, the test is effectively stopped, the occurrence of fire situations is prevented, and the safety of the flash point test is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged view of FIG. 1A in accordance with the present utility model;
FIG. 3 is a schematic view of a partial structure of the present utility model;
fig. 4 is a cross-sectional view of fig. 3 of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
As shown in fig. 1 to 4, an open flash point testing process liquid level detection device comprises a flash point tester main body 1, a lifting arm 2, a flame holding device 3, a connecting rod 4, a plasma ring 5, an oil cup 6, a sample temperature sensor 7, a liquid level temperature detection sensor 8, a fire point fire extinguishing cover 9, a ventilation opening 10, a liquid receiving disc 11, a display screen 12 and an ignition needle 13.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The flash point tester main body 1 is rotatably provided with a lifting arm 2, the movable side of the lifting arm 2 is provided with a flame holding device 3, the flame holding device 3 is connected with a plasma ring 5 through a connecting rod 4, and the plasma ring 5 is provided with a temperature detection device, specifically, in the embodiment, the temperature detection device comprises a sample temperature sensor 7 and a liquid level temperature detection sensor 8, one end of the connecting rod 4 downwards extends out of the plasma ring 5 to be connected with the sample temperature sensor 7, and the sample temperature sensor 7 is arranged in parallel with the plasma ring 5; the inner side of the opening of the plasma ring 5 is provided with a liquid level temperature detection sensor 8, the bottom of the liquid level temperature detection sensor 8 is level with the bottom of the plasma ring 5, so that the detection point of the liquid level temperature detection sensor 8 and the surface of the plasma ring bottom 5 are on the same horizontal plane, and whether the liquid level reaches the plasma ring 5 can be judged by comparing the detection point with the sample temperature sensor 7 extending into a sample.
The vertical distance between the sample temperature sensor 7 and the liquid level temperature detection sensor 8 is equal to the height of the scale mark of the oil cup 6, and the maximum sample which can be placed during sample measurement is better matched.
One side of the oil cup 6 is provided with a fire point fire extinguishing cover 9, the coverage area of the fire point fire extinguishing cover 9 is larger than the open area of the oil cup 6, so that the oil cup 6 can be completely covered when fire extinguishing is needed or heating is stopped, and fire is avoided; the liquid receiving disc 11 is arranged below the plasma ring 5, and the liquid receiving disc 11 and the oil cup 6 are arranged in parallel, so that the oil cup 6 can have the oil dripping condition to influence the cleanliness of the whole device.
One side of the flash point tester main body 1 is provided with a display screen 12, and the display screen 12, the sample temperature sensor 7 and the liquid level temperature detection sensor 8 are electrically connected with the flash point tester main body 1, so that relevant parameters can be adjusted on the display screen 12.
The other side of the flash point tester main body 1 is uniformly provided with a plurality of ventilation openings 10, which is convenient for ventilation of the internal device.
The working principle of the utility model is as follows: the sample starts to heat from room temperature, the ignition needle 13 scans and ignites the liquid level of the sample, and when the liquid level detection temperature sensor 8 is not contacted with the liquid level, the temperature difference between the liquid level detection temperature sensor 8 and the sample temperature sensor is gradually increased; when the liquid level detection temperature sensor 8 contacts the liquid level, the temperature difference is rapidly reduced, the detection condition is that the room temperature is 25 ℃, the flash point tester main body 1 monitors the temperature signal collected by the liquid level detection temperature sensor 8 in real time, the temperature signal is compared with the temperature signal of the sample temperature sensor 7, judgment is started from 100 ℃, when the temperature difference is lower than 20 ℃, the liquid level can be considered to reach the bottom surface of the plasma ring 5, the flash point tester main body 1 gives a prompt, the heating is stopped, the test is effectively stopped, the occurrence of fire is prevented, the safety of the flash point test is improved, the whole structure is simple, and the operation is convenient.
It should be explained that the flash point tester main body 1, the lifting arm 2, the flame holding device 3, the sample temperature sensor 7, the liquid level temperature detecting sensor 8, the fire point fire extinguishing cover 9, the liquid receiving tray 11 and the display screen 12 used in the utility model are all common devices which can be purchased and installed by themselves in the market, the functions of controlling heating, measuring temperature in real time, sweeping and igniting and the like are also the existing common technologies, and the utility model does not make any improvement on the program control.
The test data table of the device is as follows:
the above-described embodiments are only preferred embodiments of the present utility model and should not be construed as limiting the scope of the utility model, and thus, modifications, equivalent variations, improvements, etc. made in accordance with the claims of the present utility model still fall within the scope of the utility model.
Claims (7)
1. The utility model provides an opening flash point test process liquid level detection device, includes flash point apparatus main part (1), its characterized in that: still include lift arm (2), flame holding device (3), plasma ring (5), temperature-detecting device and oil cup (6), rotatable lift arm (2) are installed on flash point apparatus main part (1), flame holding device (3) are installed to lift arm (2) movable side, flame holding device (3) are connected with plasma ring (5) through connecting rod (4), be equipped with temperature-detecting device on plasma ring (5).
2. An open flash test process level detection apparatus as defined in claim 1, wherein: the temperature detection device comprises a sample temperature sensor (7) and a liquid level temperature detection sensor (8), one end of the connecting rod (4) downwards extends out of the plasma ring (5) to be connected with the sample temperature sensor (7), and the sample temperature sensor (7) is arranged in parallel with the plasma ring (5); the inner side of the opening of the plasma ring (5) is provided with a liquid level temperature detection sensor (8), and the bottom of the liquid level temperature detection sensor (8) is flush with the bottom of the plasma ring (5).
3. An open flash test process level detection apparatus as defined in claim 2, wherein: the vertical distance between the sample temperature sensor (7) and the liquid level temperature detection sensor (8) is equal to the height of the scale mark of the oil cup (6).
4. A device for detecting the liquid level in an open flash test process according to claim 3, wherein: one side of the oil cup (6) is provided with a fire-point fire-extinguishing cover (9), and the coverage area of the fire-point fire-extinguishing cover (9) is larger than the open area of the oil cup (6).
5. An open flash point testing process liquid level detection apparatus according to claim 3 or 4, wherein: one side of the flash point tester main body (1) is provided with a display screen (12), and the display screen (12), the sample temperature sensor (7) and the liquid level temperature detection sensor (8) are electrically connected with the flash point tester main body (1).
6. An open flash test process level detection apparatus as defined in claim 1, wherein: a plurality of ventilation openings (10) are uniformly formed in the other side of the flash point tester main body (1).
7. An open flash test process level detection apparatus as defined in claim 5, wherein: a liquid receiving disc (11) is arranged below the plasma ring (5), and the liquid receiving disc (11) and the oil cup (6) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222936260.2U CN219016164U (en) | 2022-11-04 | 2022-11-04 | Liquid level detection device for open flash point test process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222936260.2U CN219016164U (en) | 2022-11-04 | 2022-11-04 | Liquid level detection device for open flash point test process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219016164U true CN219016164U (en) | 2023-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222936260.2U Active CN219016164U (en) | 2022-11-04 | 2022-11-04 | Liquid level detection device for open flash point test process |
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| Country | Link |
|---|---|
| CN (1) | CN219016164U (en) |
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2022
- 2022-11-04 CN CN202222936260.2U patent/CN219016164U/en active Active
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