Density synchronism detection device for various oil products

Abstract

The utility model relates to a density synchronism detection device for various oil products, which provides stable oil product medium temperature through a constant-temperature oil tank, and drives the medium to circulate in two parallel oil ways through a circulating pump. An oil product sequentially passes through the first standard densimeter, the liquid inlet distribution pipe, the pressure measuring instrument, the temperature measuring instrument, the detected densimeter, the control valve and the liquid outlet distribution pipe, then is connected with the second standard densimeter through the purge valve and finally returns to the constant-temperature oil tank through the liquid return pipe, and the first standard densimeter provides an initial density reference. The detected densimeter is used for measuring the density of an oil product to be detected, the second standard densimeter is used for verifying a measurement result, the supercharger and the pressure test pump are used for adjusting medium pressure, the data acquisition and processing unit is used for acquiring and processing measurement data in real time, and the device can be used for detecting the density of different types of oil products and has the advantages of high measurement precision, good stability, simplicity and convenience in operation and the like. The device is suitable for accurate monitoring of oil quality in laboratories and industrial environments.

Description

Technical Field

[0001] This utility model relates to the field of oil testing technology, and in particular to a device that can simultaneously detect the density of different types of oil under the same conditions, which is suitable for precise monitoring of oil quality in laboratory and industrial environments. Background Technology

[0002] Traditional methods for measuring oil density, such as glass float densitometers and oscillating tube densitometers, while generally meeting measurement requirements, have several limitations. These methods often involve a wide variety of samples, resulting in significant measurement errors under varying conditions, and their repeatability and accuracy are limited. Particularly under high flow rates or complex operating conditions, the accuracy and stability of traditional methods are difficult to guarantee. Utility Model Content

[0003] To address the aforementioned problems, this utility model discloses a device for synchronously detecting the density of various oil products.

[0004] The specific technical solution is as follows:

[0005] A device for synchronously detecting the density of various oil products includes a constant-temperature oil tank and a circulating pump. The circulating pump is connected to the constant-temperature oil tank. The constant-temperature tank has two parallel oil circuits. Starting from the constant-temperature oil tank, the constant-temperature oil tank is sequentially connected to a first standard densitometer, an inlet distribution pipe, a pressure measuring instrument, a temperature measuring instrument, a densitometer under test, a control valve, and an outlet distribution pipe. The outlet distribution pipe is connected to a second standard densitometer via a purge valve. The second standard densitometer is connected to the constant-temperature oil tank via a return pipe. The densitometer under test, the first standard densitometer, and the second standard densitometer are connected in series. The two parallel oil circuits share the densitometer under test and the standard densitometer.

[0006] The number of densitometers under test is three or more, and the densitometers are connected in parallel. One end of each densitometer is connected to a pressure transmitter, and the other end is connected to a liquid distribution pipe.

[0007] It also includes a booster compressor, a test pump, and a data acquisition and processing unit. The booster compressor and the test pump are connected to the oil circuit to regulate the medium pressure. The data acquisition and processing unit communicates with a standard densitometer, a densitometer under test, a pressure measuring instrument, and a temperature measuring instrument through a multi-channel signal acquisition circuit.

[0008] The two oil circuits correspond to oil testing for different density ranges. One oil circuit has a density measurement range of (650~890) kg / m3, and the other oil circuit has a density measurement range of (900~1300) kg / m3.

[0009] The device also includes a cleaning water bath, which is connected to an oil circuit via a pipeline.

[0010] A visual tube is connected between the second standard density meter and the return tube.

[0011] The booster and pressure testing pump are also connected to a pressure calibrator.

[0012] The advantages of this invention are as follows: This device can simultaneously detect the density of different types of oils under the same conditions. Precise temperature control via a constant-temperature oil bath and chamber ensures consistent measurement conditions, thereby improving the accuracy and reliability of the measurement results. The use of two parallel oil circuits, each corresponding to oils with different density ranges, expands the detection range and meets the testing needs of diverse oils. The device is equipped with multiple densitometers connected in parallel, improving detection efficiency and data redundancy, thus enhancing the reliability of the measurement results. Simultaneously, the device integrates a booster pump and a pressure testing pump, enabling adjustment of the medium pressure to adapt to measurement needs under different pressure conditions, further expanding the device's application scenarios. Finally, the introduction of a data acquisition and processing unit enables real-time acquisition, storage, and processing of measurement data. Communication with each measuring instrument via multi-channel signal acquisition circuits ensures data integrity and real-time performance, providing strong support for subsequent data analysis and report preparation. In summary, this invention's synchronous density detection device for diverse oils has significant advantages in measurement accuracy, detection range, and data processing, making it suitable for precise monitoring of oil quality in laboratory and industrial environments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] A device for synchronously detecting the density of various oil products includes a constant-temperature oil tank 1 and a circulating pump 2. The circulating pump 2 is connected to the constant-temperature oil tank 1. The constant-temperature chamber 3 has two parallel oil circuits. Starting from the constant-temperature oil tank 1, the constant-temperature oil tank 1 is sequentially connected to a first standard density meter 7a, an inlet distribution pipe 4, a pressure measuring instrument 5, a temperature measuring instrument 6, a density meter under test 8, a control valve 9, and an outlet distribution pipe 10. It is connected to a second standard density meter 7b via a purge valve 18. The second standard density meter 7b is connected to the constant-temperature oil tank 1 via a return pipe 12. The density meter under test 8, the first standard density meter 7a, and the second standard density meter 7b are connected together in series. The two parallel oil circuits share the density meter under test 8 and the standard density meter 7.

[0016] The number of densitometers 8 under test is three or more, and the densitometers 8 under test are connected in parallel. One end is connected to the pressure transmitter 5, and the other end is connected to the liquid distribution pipe 10.

[0017] It also includes a booster compressor 13, a test pump 14, and a data acquisition and processing unit 17. The booster compressor 13 and the test pump 14 are connected to the oil circuit to regulate the medium pressure. The data acquisition and processing unit 17 communicates with the standard densitometer 7, the densitometer under test 8, the pressure measuring instrument 5, and the temperature measuring instrument 6 through a multi-channel signal acquisition circuit.

[0018] The two oil circuits correspond to oil testing for different density ranges. One oil circuit has a density measurement range of (650~890) kg / m3, and the other oil circuit has a density measurement range of (900~1300) kg / m3.

[0019] The device also includes a cleaning water bath 16, which is connected to an oil circuit via a pipeline.

[0020] A visual tube 11 is connected between the second standard density meter 7b and the return pipe 12.

[0021] The booster 13 and the test pump 14 are also connected to a pressure calibrator.

[0022] The working principle of this utility model is as follows: The working principle of this utility model's multi-oil density synchronous detection device is to use a constant temperature oil bath to provide a constant temperature oil medium, ensuring that the medium temperature change does not exceed ±0.1℃ during the test. Temperature measuring instruments are used to monitor the inlet and outlet temperatures of the densitometer to verify whether the medium temperature fluctuation meets the density test requirements. A circulating pump pumps the medium into two parallel oil circuits within the constant temperature chamber. The appropriate oil circuit is selected according to the density of the oil medium. The oil medium sequentially passes through a first standard densitometer, an inlet distribution pipe, a pressure measuring instrument, a temperature measuring instrument, the densitometer under test, a control valve, and an outlet distribution pipe. It is then connected to a second standard densitometer via a purge valve and finally returns to the constant temperature oil bath through a return pipe, forming a closed-loop circulation system. In this process, the first standard densitometer is used to measure the initial density of the oil, providing a baseline value; the densitometer under test is used to measure the density of the oil medium to be tested. Multiple densitometers under test can simultaneously measure the density of different types of oil, improving detection efficiency and data redundancy; the second standard densitometer is used to measure the density of the oil again to verify the measurement results of the densitometer under test and ensure data reliability. A booster pump increases the pressure in the process pipeline, analyzing the metrological performance of the densitometers under different pressure conditions. The pressure testing pump is mainly used to balance and stabilize the system pressure, ensuring that pressure fluctuations during the pressure influence test do not exceed ±0.05 MPa. The medium pressure measurement range is (0~3.0) MPa. The data acquisition and processing unit communicates with each measuring instrument through a multi-channel signal acquisition circuit, acquiring, storing, and processing measurement data in real time, ultimately achieving synchronous detection of the density of different types of oil. The pressure and temperature measuring instruments monitor the oil pressure and temperature in real time to ensure the stability and accuracy of the measurement conditions; control valves are used to regulate the flow and direction of the oil to ensure the normal flow of the oil in the oil circuit; cleaning water baths are used to clean the oil circuit and density meter to prevent oil residue from affecting the measurement results; the data acquisition and processing unit integrates and analyzes all measurement data to generate a test report, providing users with accurate oil density synchronization test results.

Claims

1. A device for synchronously detecting the density of various oil products, comprising a constant-temperature oil tank and a circulating pump, wherein the circulating pump is connected to the constant-temperature oil tank, characterized in that: The constant temperature chamber has two parallel oil circuits. Starting from the constant temperature oil bath, the constant temperature oil bath is sequentially connected to a first standard densitometer, an inlet distribution pipe, a pressure measuring instrument, a temperature measuring instrument, a densitometer under test, a control valve, and an outlet distribution pipe. It is connected to a second standard densitometer via a purge valve. The second standard densitometer is connected to the constant temperature oil bath via a return pipe. The densitometer under test, the first standard densitometer, and the second standard densitometer are connected together in series. The two parallel oil circuits share the densitometer under test and the standard densitometer.

2. The device for simultaneous detection of density of various oil products according to claim 1, characterized in that: The number of densitometers under test is three or more, and the densitometers are connected in parallel. One end of each densitometer is connected to a pressure transmitter, and the other end is connected to a liquid distribution pipe.

3. The device for simultaneous detection of density of various oil products according to claim 1, characterized in that: It also includes a booster compressor, a test pump, and a data acquisition and processing unit. The booster compressor and the test pump are connected to the oil circuit to regulate the medium pressure. The data acquisition and processing unit communicates with a standard densitometer, a densitometer under test, a pressure measuring instrument, and a temperature measuring instrument through a multi-channel signal acquisition circuit.

4. The device for simultaneous detection of density of various oil products according to claim 1, characterized in that: The two oil circuits correspond to oil testing for different density ranges. One oil circuit has a density measurement range of (650~890) kg / m3, and the other oil circuit has a density measurement range of (900~1300) kg / m3.

5. The device for simultaneous detection of density of various oil products according to claim 1, characterized in that: The device also includes a cleaning water bath, which is connected to an oil circuit via a pipeline.

6. The device for simultaneous detection of density of various oil products according to claim 1, characterized in that: A visual tube is connected between the second standard density meter and the return tube.

7. The device for simultaneous detection of density of various oil products according to claim 3, characterized in that: The booster and pressure testing pump are also connected to a pressure calibrator.

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