Intelligent crude oil moisture measuring device

Abstract

The utility model provides an intelligent crude oil moisture measuring device, which solves the technical problems that an oil sample is easy to azeotrope and condensed water is easy to adhere to a wall in the existing crude oil moisture monitoring device, and comprises a distillation device, the distillation device comprises a condensation pipe, a moisture receiver and a magnetic stirring heater, and a crude oil container is arranged on the magnetic stirring heater. A magnetic stirrer rotor of the magnetic stirring heater is located at the bottom of the crude oil container, a film sensor is arranged in the magnetic stirring heater and attached to the bottom of the crude oil container, one end of the crude oil container is connected with a moisture receiver, the other end of the moisture receiver is connected with a condensation pipe, and the condensation pipe is connected with a constant-temperature water tank through a connecting pipe. A hot air blowing device is arranged above the moisture receiver, the hot air blowing device is provided with a frame body, a first motor and a barrel body capable of swinging, and a fan, an electric heating wire and a second temperature sensor are mounted in the barrel body. The device can be widely applied to the technical field of crude oil moisture determination.

Description

Technical Field

[0001] The utility model relates to the technical field of crude oil moisture determination, in particular to an intelligent crude oil moisture determination device. Background Art

[0002] In the petroleum industry, the water content of crude oil and oil products is an important indicator. It is an indispensable parameter in crude oil extraction, production and processing.

[0003] When detecting the moisture content of crude oil, existing detection devices require manual monitoring of the heating temperature, which has low accuracy, makes the oil sample prone to explosive boiling, and easily forms water droplets that adhere to the branch pipe of the moisture receiver, causing measurement errors. Therefore, the utility model provides an intelligent crude oil moisture measuring device. Summary of the Invention

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an intelligent crude oil moisture determination device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An intelligent crude oil moisture determination device includes a distillation device, the distillation device including a condenser, a moisture receiver, and a magnetic stirring heater. A crude oil container is provided on the magnetic stirrer, and a magnetic stirrer rotor of the magnetic stirring heater is located at the bottom of the crude oil container. A thin film sensor is provided within the magnetic stirring heater, and the thin film sensor is in contact with the bottom of the crude oil container. One end of the crude oil container is connected to the moisture receiver, and the other end of the moisture receiver is connected to the condenser. The condenser is connected to a constant temperature water tank via a connecting pipe. A hot air purge device is provided above the moisture receiver, and the hot air purge device includes a frame, a first motor, and a barrel that can be swung. A fan, a heating wire, and a second temperature sensor are installed inside the barrel.

[0007] Preferably, the condenser is divided into an outer tube and an inner tube, the outer tube is connected to the constant temperature water tank, an inner tube is provided inside the outer tube, and the inner tube is connected to the moisture receiver.

[0008] Preferably, the first motor and the cylinder are both mounted on the frame, the output end of the first motor is fixedly connected to the cylinder, and an air outlet is provided at a side end of the cylinder.

[0009] Preferably, the connecting pipe includes a return pipe and an inlet pipe, one end of the return pipe is fixedly installed at the circulating water outlet end of the condenser, and the other end of the return pipe is located inside the constant temperature water tank, one end of the inlet pipe is fixedly installed at the circulating water inlet end of the condenser, and the other end of the inlet pipe is fixedly installed at the bottom position of the side of the constant temperature water tank, and a circulating water pump is fixedly installed on the inlet pipe.

[0010] Preferably, a first temperature sensor and an agitator are provided inside the constant temperature water tank, and the agitator is externally connected to a second motor.

[0011] Preferably, a PLC control system is also provided, and the thin film sensor, the first temperature sensor, the second temperature sensor, the second motor, the constant temperature water tank, the circulating water pump, the magnetic stirring heater and the hot air blowing device are all electrically connected to the PLC control system.

[0012] The utility model has the following beneficial effects:

[0013] Compared with the existing technology, this intelligent crude oil moisture determination device adopts the combination of a magnetic stirring heater and a thin film sensor. The magnetic stirrer rotor of the magnetic stirring heater is arranged at the bottom of the crude oil container, stirring the crude oil during heating to ensure uniform heating of the crude oil. In addition, the thin film sensor is attached to the bottom of the crude oil container to accurately detect the heating temperature of the crude oil liquid in the crude oil container, thereby preventing the crude oil from boiling due to excessive temperature. When used in the distillation process, a hot air blowing device is set up to heat the moisture receiver with hot air, which can vaporize the water droplets stuck inside the moisture receiver and then liquefy them in the condenser, thereby ensuring the readiness of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall schematic diagram of an intelligent crude oil moisture determination device proposed in the utility model;

[0015] Figure 2 This is a schematic diagram of a hot air purge device of an intelligent crude oil moisture determination device proposed in the utility model.

[0016] Legend:

[0017] 1. First temperature sensor; 2. Return pipe; 3. Distillation device; 4. Agitator; 5. Hot air purge device; 6. Water inlet pipe; 7. Inner pipe; 8. Outer pipe; 9. Circulating water pump; 10. Magnetic stirrer rotor; 11. Thin film sensor; 12. Magnetic stirring heater; 13. Constant temperature water tank; 14. Moisture receiver; a. Frame; b. Cylinder; c. First motor; d. Heating wire; e. Fan; f. Second temperature sensor. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is 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 this application and are not intended to limit this application.

[0019] like Figure 1As shown, the present invention provides an intelligent crude oil moisture determination device, which includes: a distillation device 3, a constant temperature water tank 13 and a hot air blowing device 5.

[0020] The distillation device 3 includes a condenser, a moisture receiver 14, and a magnetic stirring heater 12. A crude oil container is provided on the magnetic stirring heater 12. The crude oil container can be a glass flask for holding crude oil. The magnetic stirring heater 12 has a magnetic stirring rotor 10 located at the bottom of the crude oil container. The magnetic stirring heater 12 is used to heat the crude oil solution in the crude oil container. A thin film sensor 11 is provided in the magnetic stirring heater 12. The thin film sensor 11 is attached to the bottom of the crude oil container to accurately detect the heating temperature of the crude oil liquid in the crude oil container to prevent the crude oil from boiling due to excessive temperature. That is, when in use, the crude oil container is placed on the magnetic stirring heater 12, and the magnetic stirring rotor 10 of the magnetic stirring heater 12 is placed at the bottom of the crude oil container. The magnetic stirring heater 12 heats the crude oil liquid inside the crude oil container, and the magnetic stirring heater 12 controls the movement of the magnetic stirring rotor 10 to stir the crude oil liquid inside the crude oil container evenly, making it easier to heat and less likely to boil.

[0021] One end of the crude oil container is connected to a moisture receiver 14, and the other end of the moisture receiver 14 is connected to a condenser. The condenser is connected to a constant temperature water tank 13 via a connecting pipe. The condenser is divided into an outer tube 8 and an inner tube 7. The outer tube 8 is connected to the constant temperature water tank 13, and the constant temperature water tank 13 supplies circulating cooling water to the outer tube 8 of the condenser. The inner tube 7 is provided inside the outer tube 8, and the inner tube 7 is connected to the moisture receiver 14. The steam generated in the crude oil container flows through the moisture receiver 14 into the inner tube 7 of the condenser. The steam exchanges heat with the flowing circulating cooling water, causing the steam to liquefy into water droplets, which fall and accumulate at the lower end of the moisture receiver 14.

[0022] It is worth noting that the bottom end of the moisture receiver 14 is closed, and a scale is provided at the lower end of the moisture receiver 14 for intuitively obtaining the volume of water.

[0023] Calculation formula: X (%) = V / G * 100%;

[0024] Where: V is the volume of collected water (ml); G is the mass of the sample (g). At room temperature, the density of water can be considered as 1g / cm³.

[0025] According to the above calculation formula, the mass fraction of water in crude oil X (%) can be obtained.

[0026] In order to ensure the accuracy of the measurement, a hot air blowing device 5 is provided above the moisture receiver 14. During the distillation process, the hot air blowing device 5 blows hot air on the moisture receiver 14, which can vaporize the water droplets adhered to the inside of the moisture receiver 14, and then flow into the inner tube 7 of the condenser and liquefy in the inner tube 7 of the condenser, thereby reducing the measurement error and ensuring the accuracy of the measurement.

[0027] Specifically, if Figure 2 As shown, the hot air blowing device 5 comprises a frame a, a first motor c, and a swingable barrel b. The barrel b houses a fan e, a heating wire d, and a second temperature sensor f. Specifically, the first motor c and barrel b are both mounted on the frame a. The output end of the first motor c is fixedly connected to the barrel b. The first motor c is used to drive the barrel b to rotate. The side end of the barrel b is provided with an air outlet that can blow out the required hot air.

[0028] Furthermore, the top end of the condenser is open to keep the condenser connected to the atmosphere, thereby preventing excessive pressure inside the condenser. A desiccant is provided at the upper end of the condenser to prevent water vapor in the atmosphere from entering the condenser and affecting the measurement results, thereby further improving the accuracy of the measurement.

[0029] In one embodiment, the connecting pipe includes a return pipe 2 and an inlet pipe 6. A constant-temperature water tank 13 is filled with cooling water (typically purified water), which is maintained at a controlled temperature of 20°C-25°C. One end of the return pipe 2 is fixedly mounted to the circulating water outlet of the condenser outer tube 8, while the other end is located within the constant-temperature water tank 13. One end of the inlet pipe 6 is fixedly mounted to the circulating water inlet of the condenser outer tube 8, while the other end is fixedly mounted to the side bottom of the constant-temperature water tank 13. A circulating water pump 9 is fixedly mounted on the inlet pipe 6.

[0030] Specifically, a circulating water circuit is formed by the water inlet pipe 6, the condenser outer pipe 8, the return pipe 2 and the constant temperature water tank 13. The circulating water pump 9 works to send the cooling water in the constant temperature water tank 13 into the condenser outer pipe 8. The cooling water completes heat exchange with the steam inside the condenser outer pipe 8 to liquefy the steam. After being heated, the cooling water flows back to the constant temperature water tank 13 through the return pipe 2.

[0031] Among them, the interior of the constant temperature water tank 13 is provided with a first temperature sensor 1 and an agitator 4. The agitator 4 is externally connected to a second motor, and the second motor is used to drive the agitator 4 to rotate. The first temperature sensor 1 is used to monitor and feedback the water temperature inside the constant temperature water tank 13, and the agitator 4 is used to quickly mix the refluxed hot water with the water inside the constant temperature water tank 13.

[0032] In addition, the present invention is also provided with a PLC control system, and the film sensor 11, the first temperature sensor 1, the second temperature sensor, the second motor, the constant temperature water tank 13, the circulating water pump 9, the magnetic stirring heater 12 and the hot air blowing device 5 are all electrically connected to the PLC control system.

[0033] It is worth noting that the magnetic stirring heater 12 in the present invention can adopt the DF-101S type thermal collector constant temperature heating magnetic stirrer, the magnetic stirrer rotor 10 is a component equipped with the DF-101S type thermal collector constant temperature heating magnetic stirrer, and the constant temperature water tank 13 is the HWY-2 constant temperature water tank produced by Shanghai Changji Geological Instrument Co., Ltd.

[0034] The working principle of this utility model is:

[0035] The set temperature of the thermostatic water tank 13 is set via the PLC control system, and the first temperature sensor 1 is used to monitor the temperature of the thermostatic water tank in real time to ensure that the set temperature in the thermostatic water tank is constant. The circulating water pump 9 is turned on to input the cooling water in the thermostatic water tank 13 into the interior of the condenser outer tube 8. The magnetic stirring heater 12 is started, and the magnetic stirrer rotor 10 in the crude oil container operates to demulsify and stir the crude oil sample. At the same time, the thin film sensor 11 monitors the heating temperature of the crude oil in real time. The steam in the crude oil container enters the condenser inner tube 7 through the moisture receiver 14. The steam conducts heat with the cooling water, liquefies, and falls to the lower end of the moisture receiver 14. After the liquid level stabilizes, the volume of water is visually determined.

[0036] At the same time, during the distillation process, the PLC control system is used to start the first motor c, the fan e and the heating wire d. The first motor c drives the cylinder b to rotate so that the air outlet is facing the hot air moisture receiver 14. The heating wire d is heated, and the fan e blows the hot air heated by the heating wire d to the hot air moisture receiver 14. The moisture adhered to the inner wall of the hot air moisture receiver 14 is heated by the hot air blowing device 5, and the water droplets adhered to the inner wall of the moisture receiver 14 are vaporized into the inner tube 7 of the condenser, further ensuring the accuracy of the moisture measurement.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent crude oil moisture determination device, comprising a distillation device, characterized in that: The distillation device includes a condenser, a moisture receiver, and a magnetic stirring heater. A crude oil container is provided on the magnetic stirring heater. The magnetic stirring heater has a magnetic stirrer rotor located at the bottom of the crude oil container. A thin film sensor is provided in the magnetic stirring heater, and the thin film sensor is in contact with the bottom of the crude oil container. One end of the crude oil container is connected to the moisture receiver, and the other end of the moisture receiver is connected to the condenser. The condenser is connected to a constant temperature water tank via a connecting pipe. A hot air purge device is provided above the moisture receiver. The hot air purge device includes a frame, a first motor, and a barrel that can be swung. A fan, a heating wire, and a second temperature sensor are installed inside the barrel.

2. The intelligent crude oil moisture measuring device according to claim 1, characterized in that: The condenser is divided into an outer tube and an inner tube. The outer tube is connected to a constant temperature water tank. An inner tube is arranged inside the outer tube, and the inner tube is connected to a moisture receiver.

3. The intelligent crude oil moisture measuring device according to claim 1, characterized in that: The first motor and the cylinder are both mounted on the frame, the output end of the first motor is fixedly connected to the cylinder, and an air outlet is provided at a side end of the cylinder.

4. The intelligent crude oil moisture measuring device according to claim 1, characterized in that: The connecting pipe includes a return pipe and an inlet pipe, one end of the return pipe is fixedly installed on the circulating water outlet end of the condenser, and the other end of the return pipe is located inside the constant temperature water tank. One end of the inlet pipe is fixedly installed on the circulating water inlet end of the condenser, and the other end of the inlet pipe is fixedly installed on the bottom side of the constant temperature water tank. A circulating water pump is fixedly installed on the inlet pipe.

5. The intelligent crude oil moisture measuring device according to claim 4, characterized in that: A first temperature sensor and a stirrer are provided inside the constant temperature water tank, and the stirrer is externally connected to a second motor.

6. The intelligent crude oil moisture measuring device according to claim 5, characterized in that: A PLC control system is also provided, and the film sensor, the first temperature sensor, the second temperature sensor, the second motor, the constant temperature water tank, the circulating water pump, the magnetic stirring heater and the hot air blowing device are all electrically connected to the PLC control system.

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