Crude oil density measuring device

Abstract

The crude oil density measuring device comprises a circulating water mechanism and a constant-temperature water bath mechanism, the constant-temperature water bath mechanism comprises a water bath barrel, an end cover, a first supporting plate and a second supporting plate, the end cover is arranged at the upper end of the water bath barrel, and the end cover comprises a first cover plate and a second cover plate hinged to the first cover plate; a first stirrer and a water temperature sensor are arranged on the first cover plate, a first supporting plate and a second supporting plate located above the first supporting plate are arranged in the water bath barrel, an annular fixing plate is arranged in the center of the first supporting plate, a first through hole is formed in the second supporting plate, a measuring barrel is placed in the annular fixing plate, and the upper end of the measuring barrel penetrates through the first through hole; an oil temperature sensor, a second stirrer and a crude oil density meter are arranged in the measuring cylinder, the oil temperature sensor and the second stirrer are arranged on the second cover plate, and the circulating water mechanism is provided with a water tank which is connected with the water bath cylinder through a connecting pipe. The crude oil density measuring device can be widely applied to the technical field of crude oil density measuring devices.

Description

Technical Field

[0001] This application belongs to the technical field of crude oil density measurement. More specifically, it relates to a crude oil density measurement device. Background Art

[0002] The density of crude oil and oil products is an indispensable parameter for crude oil quality and has extremely important significance in aspects such as storage, transportation, and production. It is a very important design parameter especially in crude oil metering, refinery production process design, refinery production device design, etc.

[0003] When the existing detection device measures the density of crude oil, the water bath barrel wall has a non-insulated structure, which is not conducive to the stability of the water bath water temperature. Moreover, it is necessary to manually stir the oil sample, manually measure the oil sample temperature, and manually read the data of the densitometer. This method is not only cumbersome in operation but also affects the detection efficiency. Summary of the Invention

[0004] This utility model is to solve the problems in the above background art and provides a crude oil density measurement device.

[0005] This utility model provides a crude oil density measurement device, which includes a circulating water mechanism and a constant temperature water bath mechanism connected to the circulating water structure. The constant temperature water bath mechanism includes a water bath barrel, an end cover, a first support plate, and a second support plate. An end cover is provided at the upper end of the water bath barrel. The end cover includes a first cover plate and a second cover plate hinged to the first cover plate. A first stirrer and a water temperature sensor are provided on the first cover plate. A first support plate and a second support plate above the first support plate are provided inside the water bath barrel. An annular fixing plate is provided at the central position of the first support plate. The second support plate is provided with a first through hole. A measuring cylinder is placed inside the annular fixing plate. The upper end of the measuring cylinder passes through the first through hole. An oil temperature sensor, a second stirrer, and a crude oil densitometer are provided inside the measuring cylinder. The oil temperature sensor and the second stirrer are provided on the second cover plate. The circulating water mechanism is provided with a water tank, and the water tank is connected to the water bath barrel through a connecting pipe.

[0006] Preferably, the water tank is provided with a refrigeration component and a heating plate. The refrigeration component includes a refrigerator and a refrigeration conductor. The refrigeration conductor is provided inside the water tank and is connected to the refrigerator provided outside the water tank. A heating plate is provided at the bottom of the water tank, and a heating wire is provided inside the heating plate.

[0007] Preferably, the second cover plate is provided with a second through hole and a third through hole. The oil temperature sensor is inserted into the second through hole, and the second stirrer is inserted into the third through hole.

[0008] Preferably, the first stirrer is externally connected to a first motor, and the second stirrer is externally connected to a second motor.

[0009] Preferably, the connecting pipe includes a return water pipe and a water inlet pipe. One end of the return water pipe is fixedly installed at the circulating water outlet end of the water bath cylinder, and the other end of the return water pipe is located inside the water tank. One end of the water inlet pipe is fixedly installed at the circulating water inlet end of the water bath cylinder, and the other end of the water inlet pipe is fixedly installed at the lower side position of the water tank. A circulating water pump is fixedly installed on the water inlet pipe.

[0010] Preferably, the first support plate is provided with a plurality of uniformly distributed through holes, and a silica gel pad is provided on the inner wall of the annular fixing plate.

[0011] Preferably, a camera is provided on the second support plate, and the camera faces the crude oil densitometer.

[0012] Preferably, a lighting lamp is provided at the upper end of the water bath cylinder, and the lighting lamp provides supplementary light for the measuring cylinder.

[0013] Preferably, a PLC control system is further provided, and the refrigerator, the heating plate, the circulating water pump, the water temperature sensor, the oil temperature sensor, the first motor, the second motor, the camera and the lighting lamp are all electrically connected to the PLC control system.

[0014] The beneficial effects of the present invention are as follows:

[0015] The present invention provides a device for measuring the density of crude oil. Through the cooperation of the water temperature sensor and the first stirrer, it is ensured that the water temperature in the water bath cylinder can quickly reach the preset temperature. By using the circulating water mechanism, the water temperature in the water bath cylinder can be accurately controlled to ensure the stability of the water bath temperature; through the cooperation of the first support plate and the second support plate, it is convenient to fix the measuring cylinder, avoid damage to it when measuring and placing, play a protective role, and at the same time ensure the stability of the measurement; by using the cooperation of the oil temperature sensor and the second stirrer, the temperature of the crude oil is monitored while stirring the crude oil, which simplifies the operation and accurately controls the temperature for measuring the crude oil, improving the accuracy of the measurement; by using the cooperation of the camera and the PLC control system, it replaces manual reading of the densitometer, further improving the accuracy of the measurement result. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the water tank in the present invention;

[0019] Figure 3 This is a schematic structural diagram of the oil temperature sensor and the second stirrer placed in the measuring cylinder in the present utility model;

[0020] Figure 4 This is a schematic diagram of the state of the crude oil densitometer placed in the measuring cylinder in the present utility model;

[0021] Figure 5 This is a schematic connection diagram of the oil temperature sensor and the second stirrer with the second end cover in the present utility model.

[0022] 1. Water tank; 2. Water bath cylinder; 3. First support plate; 4. Annular fixing plate; 5. Circulating water pump; 6. Oil temperature sensor; 7. First stirrer; 8. Second stirrer; 9. Crude oil densitometer; 10. Measuring cylinder; 11. Flow hole; 12. Refrigeration conductor; 13. Heating plate; 14. Refrigerator; 15. Water temperature sensor; 16. First cover plate; 17. Second cover plate; 18. Second support plate; 19. First through hole; 20. Second through hole; 21. Third through hole; 22. Camera. Detailed implementation manners

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0026] Now, the crude oil density measuring device provided by the embodiments of the present application will be described. The crude oil density measuring device, as Figure 1 shown, includes a circulating water mechanism and a constant temperature water bath mechanism connected to the circulating water mechanism. The circulating water mechanism provides circulating water for the constant temperature water bath mechanism, and the constant temperature water bath mechanism is used to provide a constant temperature measurement condition for the crude oil.

[0027] Specifically, the constant temperature water bath mechanism is provided with a water bath cylinder 2. The upper end of the water bath cylinder 2 is provided with an end cover, which forms a closed space for the water bath cylinder 2 when measuring the density of crude oil, reducing air disturbance, facilitating the accurate measurement of the density of crude oil, and also facilitating the stability of the water temperature. The end cover includes a first cover plate 16 and a second cover plate 17 hinged to the first cover plate 16. The first cover plate 16 is fixedly connected to the water bath cylinder 2. By opening the second cover plate 17, the measuring cylinder 10 can be placed into the water bath cylinder 2. The first cover plate 16 is provided with a first stirrer 7 and a water temperature sensor 15, and the lower ends of both the first stirrer 7 and the water temperature sensor 15 are arranged in the water. The first stirrer 7 is externally connected to a first motor, and the first motor drives the first stirrer 7 to rotate, so that the water temperature in the water bath cylinder 2 quickly reaches the preset temperature. The water temperature sensor 15 is used to monitor the water temperature in the water bath cylinder 2. Inside the water bath cylinder 2, there are a first support plate 3 and a second support plate 18 located above the first support plate 3. The center position of the first support plate 3 is provided with an annular fixing plate 4. The second support plate 18 is provided with a first through hole 19. The measuring cylinder 10 is placed inside the annular fixing plate 4, and the upper end of the measuring cylinder 10 passes through the first through hole 19, which is convenient for fixing the measuring cylinder 10; As Figure 3 and Figure 4 shown, the measuring cylinder 10 is provided with an oil temperature sensor 6, a second stirrer 8, and a crude oil densitometer 9. The oil temperature sensor 6 and the second stirrer 8 are arranged on the second cover plate 17, and the lower ends of the oil temperature sensor 6 and the second stirrer 8 extend into the measuring cylinder 10. The second stirrer 8 is externally connected to a second motor, and the second motor drives the second stirrer 8 to rotate and stir the crude oil, making the crude oil evenly heated, quickly homogenizing the temperature of the crude oil in the measuring cylinder 10 in the early stage of density measurement, improving the detection efficiency. The oil temperature sensor 6 is used to monitor the temperature of the crude oil, and the original densitometer 9 is used to measure the original density.

[0028] Among them, the circulating water mechanism includes a water tank 1, a return water pipe, and a water inlet pipe. The water tank 1 is filled with circulating water (generally pure water). One end of the return water pipe is fixedly installed at the circulating water outlet end of the water bath cylinder 2, and the other end of the return water pipe is located inside the water tank 1. One end of the water inlet pipe is fixedly installed at the circulating water inlet end of the water bath cylinder 2, and the other end of the water inlet pipe is fixedly installed at the lower side position of the water tank 1. A circulating water pump 5 is fixedly installed on the water inlet pipe.

[0029] Among them, as Figure 2 shown, the water tank 1 is provided with a refrigeration component and a heating plate 13. The refrigeration component includes a refrigerator 14 and a refrigeration conductor 12. The refrigeration conductor 12 is arranged inside the water tank 1, and the refrigeration conductor 12 is connected to the refrigerator 14 arranged outside the water tank 1. The circulating water in the water tank 1 is cooled through the refrigeration conductor 12. A heating plate 13 is arranged at the bottom of the water tank 1, and a heating wire is arranged inside the heating plate 13, which is used to heat the circulating water in the water tank 1.

[0030] Specifically, set the temperature inside the water bath cylinder 2, and monitor the water temperature inside the water bath cylinder 2 through the water temperature sensor 15. When the water temperature is higher than the preset temperature, start the cooler 14 to cool the water in the water tank 1 through the refrigeration conductor 12. When the water temperature is lower than the preset temperature, start the heating plate 13 to heat the water in the water tank. Then, transport the cooled or heated water to the water bath cylinder 2 through the circulation pump. Through the balance adjustment of the refrigeration conductor 12 and the heating plate 13, accurately control the temperature inside the water bath cylinder 2 to keep it within the preset temperature range, thereby providing a constant temperature environment for crude oil density measurement.

[0031] Further, as Figure 5 shown, the second cover plate 17 is provided with a second through hole 20 and a third through hole 21. The oil temperature sensor 6 is inserted into the second through hole 20, and the second stirrer 8 is inserted into the third through hole 21. This structural design facilitates the installation and disassembly of the oil temperature sensor 6 and the second stirrer 8. When the oil temperature sensor 6 and the second stirrer 8 are removed, the second through hole 20 and the third through hole 21 can be blocked with rubber plugs, thereby ensuring the airtightness of the space during crude oil density measurement.

[0032] Even further, as Figure 1 shown, the first support plate 3 is provided with a plurality of uniformly distributed flow holes 11. The water in the water bath cylinder 2 flows back to the circulating water mechanism through the flow holes 11 and the return pipe. A silica gel pad is provided on the inner wall of the annular fixing plate 4, which can avoid damage to it when the measuring cylinder 10 is placed, playing a protective role.

[0033] Still further, a camera 22 is provided on the second support plate 18. The camera 22 is an explosion-proof and waterproof infrared camera, and the camera 22 is directly facing the crude oil densitometer 9.

[0034] In addition, a lighting lamp (not shown in the figure) is also provided at the upper end of the water bath cylinder 2. The lighting lamp provides supplementary light for the measuring cylinder 10, and the measuring cylinder 10 is made of transparent glass material.

[0035] In this embodiment, the effective volume of the water tank 1 is 5 times that of the effective volume of the water bath cylinder 2. This design can effectively reduce the water temperature fluctuation and is conducive to accurate density measurement.

[0036] In addition, the present utility model is also provided with a PLC control system. The PLC system is electrically connected to the cooler 14, the heating plate 13, the circulating water pump 5, the water temperature sensor 15, the oil temperature sensor 6, the first motor, the second motor, the camera 22, and the lighting lamp.

[0037] The working principle of the present utility model is as follows:

[0038] Step 1: Automatic constant temperature circulation of the constant temperature water bath

[0039] Set the temperature inside the water bath cylinder 2 through the PLC control system, and monitor the water temperature through the water temperature sensor 15. When the water temperature is higher than the preset temperature, start the cooler 14 to cool the water in the water tank 1 through the refrigeration conductor. When the water temperature is lower than the preset temperature, start the heating plate 13 to heat the water in the water tank 1, and pump the cooled or heated water into the water bath cylinder 2 through the circulation pump. Precisely control the temperature inside the water bath cylinder 2 through the balance adjustment of the refrigeration conductor 12 and the heating plate 13 to keep it within the preset temperature range.

[0040] Step Two: Automatically keep the crude oil sample at a constant temperature

[0041] When the temperature inside the water bath cylinder 2 is kept within the preset temperature range, open the second end cover 17, place the measuring cylinder 10 filled with crude oil inside the annular fixing plate 4 in the water bath cylinder 2 for fixation, and insert the second stirrer 8 and the oil temperature sensor 6 on the second cover plate 17 with their lower ends placed inside the measuring cylinder 10. Use the second stirrer 8 to stir the crude oil. When the oil temperature measured by the oil temperature sensor 6 is the same as the water temperature monitored by the water temperature sensor 15, the second stirrer 8 stops stirring and the second stirrer 8 and the oil temperature sensor 6 are removed from the measuring cylinder 10. Place the crude oil densitometer 9 in the measuring cylinder 10, and block the second through hole 20 and the third through hole 21 with rubber stoppers.

[0042] Step Three: Collect the density image of the crude oil sample

[0043] After placing the crude oil densitometer 9, when the crude oil densitometer 9 is in a suspended and stable state, use the lighting lamp to illuminate the measurement tube, and use the camera 22 to collect the scale image of the crude oil densitometer 9 and upload it to the PLC control system, thereby obtaining the crude oil density data.

[0044] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. An apparatus for measuring the density of crude oil, characterized in that: It includes a circulating water mechanism and a constant temperature water bath mechanism connected to the circulating water structure. The constant temperature water bath mechanism includes a water bath cylinder, an end cover, a first support plate, and a second support plate. An end cover is provided at the upper end of the water bath cylinder. The end cover includes a first cover plate and a second cover plate hinged to the first cover plate. A first stirrer and a water temperature sensor are provided on the first cover plate. A first support plate and a second support plate located above the first support plate are provided inside the water bath cylinder. An annular fixing plate is provided at the central position of the first support plate. The second support plate is provided with a first through hole. A measuring cylinder is placed inside the annular fixing plate. The upper end of the measuring cylinder passes through the first through hole. An oil temperature sensor, a second stirrer, and a crude oil densitometer are provided inside the measuring cylinder. The oil temperature sensor and the second stirrer are provided on the second cover plate. The circulating water mechanism is provided with a water tank, and the water tank is connected to the water bath cylinder through a connecting pipe.

2. The crude oil density measuring device according to claim 1, characterized in that: The water tank is provided with a refrigeration component and a heating plate. The refrigeration component includes a refrigerator and a refrigeration conductor. The refrigeration conductor is provided inside the water tank and is connected to the refrigerator provided outside the water tank. A heating plate is provided at the bottom of the water tank, and a heating wire is provided inside the heating plate.

3. The crude oil density measuring device according to claim 2, characterized in that: A second through hole and a third through hole are provided on the second cover plate. The oil temperature sensor is inserted into the second through hole, and the second stirrer is inserted into the third through hole.

4. The crude oil density measuring device according to claim 3, characterized in that: The first stirrer is externally connected to a first motor, and the second stirrer is externally connected to a second motor.

5. The crude oil density measuring device according to claim 4, wherein: The connecting pipe includes a return water pipe and a water inlet pipe. One end of the return water pipe is fixedly installed at the circulating water outlet end of the water bath cylinder, and the other end of the return water pipe is located inside the water tank. One end of the water inlet pipe is fixedly installed at the circulating water inlet end of the water bath cylinder, and the other end of the water inlet pipe is fixedly installed at the lower side position of the water tank. A circulating water pump is fixedly installed on the water inlet pipe.

6. The crude oil density measuring device according to claim 5, wherein: The first support plate is provided with a plurality of uniformly distributed flow holes, and a silica gel pad is provided on the inner wall of the annular fixing plate.

7. The crude oil density measuring device according to claim 6, characterized in that: A camera is provided on the second support plate, and the camera faces the crude oil densitometer.

8. The crude oil density measuring device according to claim 7, characterized in that: A lighting lamp is provided at the upper end of the water bath cylinder, and the lighting lamp provides supplementary light for the measuring cylinder.

9. The crude oil density measuring device according to claim 8, wherein: A PLC control system is also provided. The refrigerator, the heating plate, the circulating water pump, the water temperature sensor, the oil temperature sensor, the first motor, the second motor, the camera, and the lighting lamp are all electrically connected to the PLC control system.

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