A device and method for detecting the content of organic chlorine in crude oil

Abstract

The application discloses a device and method for detecting the content of organic chlorine in crude oil, and belongs to the technical field of organic chlorine content detection. The device and method for detecting the content of organic chlorine in crude oil comprise a base, a sealed box is fixedly connected to the top surface of the right side of the base, an electric heating jacket is installed on the inner wall of the lower end of the sealed box, a sealed cover is rotationally connected to the front wall of the upper end of the sealed box, a through hole is formed in the inner wall of the upper end of the sealed box, two sealing plates are symmetrically arranged on the inner wall of the upper end of the sealed box, a placing seat is arranged on the top surface of the left side of the base, a plurality of clamping blocks are arranged in the ring structure in the placing seat, a pressure sensing assembly is arranged on the lower side of the placing seat, and a measuring cylinder is arranged in the placing seat. The electric heating jacket is arranged in the sealed box, the sealed box can effectively seal and keep warm when the distillation flask is heated, the efficiency of distillation is improved, the sealing plates are driven to seal the connecting pipe when the sealed cover is closed, heat loss is reduced, and waste is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of organic chlorine content detection, and more particularly to a device and method for detecting organic chlorine content in crude oil. Background Art

[0002] Chlorine in organic compounds is called organochlorine. Organochlorine is present all around us. Organochlorine pesticides, which have been phased out, chlorofluorocarbons (CFCs), and widely used organochlorine plastics and rubber are all, or have been, present. Organochlorine is toxic and poses a threat to our health. Its use should be restricted or regulated, and it should be sorted and recycled. In fact, there are many other common organic compounds containing organochlorine, such as the chlorinated hydrocarbons and CFCs (CFCs) among the halogenated hydrocarbons introduced in high school chemistry, the refrigerant Freon, and the plastic polyvinyl chloride. Organochlorine is present everywhere around us, and our understanding of organochlorine compounds is often incomplete or biased. Organochlorine compounds have played a significant role in promoting the progress and civilization of human society. However, while organochlorine has brought benefits to humanity, it has also had adverse effects on human survival and quality of life, and even caused harm. The proper use of organochlorine products is also a matter of concern to all.

[0003] Unprocessed petroleum is customarily referred to as crude oil. It is a dark brown, viscous, oily liquid with a green fluorescence and a distinctive odor. It is a mixture of various liquid hydrocarbons, including alkanes, cycloalkanes, aromatics, and alkenes. Its primary components are carbon and hydrogen, accounting for 83-87% and 11-14%, respectively. Smaller amounts of sulfur, oxygen, nitrogen, and trace amounts of phosphorus, arsenic, potassium, sodium, calcium, magnesium, nickel, iron, and vanadium are also present. Its specific gravity is 0.78-0.97, its molecular weight is 280-300, and its freezing point is -50-24°C. Crude oil is refined into various products, including fuel oil, solvent oil, lubricating oil, grease, paraffin, asphalt, liquefied gas, and aromatics, providing fuel, raw materials, and chemical products for various sectors of the national economy. Crude oil also contains organochlorine, which is why it is necessary to test its content for safe use.

[0004] Prior art CN107796861B discloses a method for detecting the organochlorine content in crude oil containing free water. This method classifies crude oil containing free water into low-density, low-viscosity crude oil and high-density, high-viscosity crude oil based on viscosity and density. Different dehydration and measurement methods are used to address the challenges of detecting organochlorine in crude oil containing free water. When the organochlorine content exceeds 3 μg / g, the test results are highly reliable, with a relative error within 10%. However, this device also has drawbacks in that, because a portion of the distillation flask is always exposed during heating, significant temperature differences result in poor heating and insulation, which affects the distillation speed and wastes heat from the electric heating mantle. Furthermore, the graduated cylinder in this device is simply placed directly, making it susceptible to shaking and misalignment during water collection, hindering water collection.

[0005] According to the prior art CN108717077A, a method for detecting the organic chlorine content in crude oil is provided, which makes the use and detection of crude oil more scientific and accurate, effectively improves the product quality control level, and plays a vital role in stabilizing the operation of crude oil processing and refining equipment, slowing the corrosion rate of equipment, extending the service life of equipment and pipelines, and improving product quality. However, the device also has shortcomings in that, when in use, the device uses a condenser to allow the distilled water to fall into the measuring cylinder. After distillation is completed, the distilled water forms water droplets that adhere to the inner wall of the condenser, and the device is not convenient for fully pouring out the water attached to the inner wall of the condenser, resulting in an unclean droplet, which greatly affects the amount of water and thus the detection data. Even if a swinging mechanism or high-pressure purge is subsequently adopted, the water vapor adsorbed on the inner wall of the pipe cannot be completely thrown out, so the measured organic chlorine content will be low. In view of this, we propose a device and method for detecting the organic chlorine content in crude oil. Summary of the Invention

[0006] 1. Technical problems to be solved

[0007] The purpose of the present invention is to provide a device and method for detecting the organic chlorine content in crude oil to solve the problems raised in the above background technology.

[0008] 2. Technical solution

[0009] A device for detecting the organic chlorine content in crude oil includes a base, a sealed box is fixedly connected to the top surface of the right side of the base, a distillation flask is arranged in the sealed box, a condenser is arranged on the left side of the sealed box, and a swing assembly for causing the condenser to swing back and forth is arranged on the left side of the sealed box, a placement seat is provided on the top surface of the left side of the base, a plurality of clamping blocks are provided in an annular structure in the placement seat, a pressure sensing assembly is provided on the lower side of the placement seat, and a measuring cylinder is provided on the upper side of the placement seat, wherein a timer and a pressure measuring module are provided in the pressure sensing assembly, a wireless temperature sensor is provided in the distillation flask, the pressure sensing assembly wirelessly receives the monitoring signal of the wireless temperature sensor, the triggering and updating of the timer respond to the monitoring values ​​of both the pressure measuring module and the wireless temperature sensor, and the pressure sensing assembly obtains the final organic chlorine content based on the multiple output signals of the timer and the output value of the pressure measuring module.

[0010] An electric heating sleeve is installed on the inner wall of the lower end of the sealing box, and a sealing cover is rotatably connected to the front wall of the upper end of the sealing box. A through hole is provided on the inner wall of the upper end of the sealing box. The inner wall of the upper end of the sealing box is a left-right symmetrical structure with two sealing plates. The inner end surface of the sealing plate is provided with an arc surface. A connecting pipe is provided in the through hole and the sealing plate. A distillation flask is provided at the lower end of the connecting pipe. The distillation flask is placed in the electric heating sleeve. The top surface of the left side of the base is a left-right symmetrical structure with two guide rods connected thereto. The guide rods are arranged in a cylindrical structure, and the base is arranged in a left-low and right-high structure.

[0011] A placement groove is provided inside the upper end of the sealing box, a placement opening is provided on the front wall of the upper end of the sealing box, the right end of the sealing cover is rotatably connected to the inner wall of the placement opening through a pin shaft, and the pin shaft near the upper side passes through the inner wall of the placement opening and extends into the placement groove and is sleeved with a driving wheel.

[0012] The outer wall of the sealing plate is slidably connected to the inner wall of the placement groove, and a sealing strip is bonded to the inner end face of the sealing plate. A rack is connected and fixed to the upper front wall of the right end of the sealing plate near the right side, and a rack is connected and fixed to the lower side of the front wall of the sealing plate near the left side. A transmission rod is provided inside the right side of the upper end of the sealing box, and a gear is sleeved on the outer wall of the rear end of the transmission rod. The two racks are respectively engaged with the upper and lower sides of the gear for transmission, and a driven wheel is sleeved on the outer wall of the front end of the transmission rod. The driven wheel is engaged with the driving wheel for transmission, and the outer wall of the front end of the transmission rod is rotatably connected to the inner wall of the placement groove.

[0013] The swing assembly includes a motor, which is fixed to the left wall of the upper end of the sealing box. A rotating shaft is provided on the upper side of the motor. An incomplete bevel gear is connected and fixed to the outer wall of the output end of the motor. The outer wall of the right end of the rotating shaft is rotatably connected to the left wall of the sealing box. The outer wall of the rotating shaft is connected and fixed with two bevel gears in a left-right symmetrical structure. The two bevel gears are engaged with the incomplete bevel gear for transmission. The outer wall of the upper end of the condenser is connected and fixed to the outer wall of the left end of the rotating shaft.

[0014] A valve is installed inside the lower end of the condenser, and the condenser is arranged in an inclined structure with the left side lower and the right side higher.

[0015] The outer wall of the middle portion of the connecting pipe is in close contact with the inner end surface of the sealing plate. A hose is connected through the upper end of the connecting pipe. The left end of the hose is connected and fixed through the inner wall of the upper end of the condensing pipe.

[0016] The outer wall of the upper end of the distillation flask is connected and fixed with an external thread, and the outer wall of the upper end of the distillation flask is threadedly connected to the inner wall of the lower end of the connecting pipe.

[0017] The inner wall of the upper end of the placement seat is annular in structure and is provided with a plurality of clamping plate grooves, and the rear end of the placement seat is slidably connected to the outer wall of the guide rod.

[0018] The top surface of the inner end of the clamping block is provided with an inclined surface, the outer wall of the outer end of the clamping block is slidably matched with the inner wall of the clamping plate groove, the outer end surface of the clamping block is connected and fixed with a spring, and the outer end of the spring is connected and fixed with the inner wall of the outer end of the clamping plate groove.

[0019] The upper end of the measuring cylinder is connected to a receiving bucket, which is arranged in a conical structure. The receiving bucket is located at the lower side of the condenser tube, and the outer wall of the lower end of the measuring cylinder is in active contact with the inner end surface of the clamping block.

[0020] The top surface of the pressure sensing component is in active contact with the bottom surface of the placement seat, and the pressure sensing component is placed directly below the placement seat.

[0021] A method for using any of the above-mentioned devices for detecting the content of organic chlorine in crude oil comprises the following steps:

[0022] S1. First, crude oil is loaded into the distillation flask, and then the sealing cover is opened. At this time, the driving wheel connected to the sealing cover meshes with the driven wheel connected to the transmission rod, thereby driving the connected gears to rotate. The gears then drive the two meshing racks, causing the two sealing plates to move outward. The distillation flask is then placed into the sealed box.

[0023] S2. The lower end of the connecting tube is then inserted into the sealing box through the through hole to connect to the distillation flask. The sealing cover is then closed. At this time, the gear on the transmission rod drives the meshing rack, so that the curved surfaces of the two sealing plates can be clamped on the outer wall of the connecting tube to seal it.

[0024] S3. Then open the valve and place the graduated cylinder in the placement seat. The clamp in the placement seat will clamp the graduated cylinder under the action of the spring, so that the graduated cylinder is fixed. Then turn on the electric heating jacket to heat the distillation flask. After the temperature of the crude oil in the distillation flask reaches the critical distillation temperature, water vapor begins to be released and enters the connecting pipe, connecting pipe and condenser in sequence. At the same time, the pressure sensing component receives the signal from the wireless temperature sensor that the critical temperature has been reached, triggering the timer to start timing. After entering the above three parts, the water vapor first adheres to the inner walls of the three parts and does not directly enter the graduated cylinder. When the inner walls of the three parts are saturated with adsorption, the water droplets condense in the condenser and roll down and begin to drip evenly into the graduated cylinder.

[0025] S4. After the first drop of water falls into the graduated cylinder, the pressure measurement module sends a trigger signal, and the timer stops timing. The timing duration is T1. The timer is then restarted and starts timing again. When the distillation operation is completed and no water drops fall into the graduated cylinder, the timer ends timing. The timing duration is now T2. At this time, data is recorded according to the scale lines on the graduated cylinder. The pressure measurement module then weighs the weight M of the water in the graduated cylinder at this time. Finally, the pressure sensing component obtains the total weight M of the organic chlorine according to the following formula: M = M1 + M1*T1 / T2 = M*((T1+T2) / T2);

[0026] S5. After the measurement is completed, close the valve on the condenser and use the incomplete bevel gear of the motor to rotate so that the incomplete bevel gear first meshes with one of the bevel gears, thereby driving the shaft to rotate in one direction. Then the incomplete bevel gear will separate from the bevel gear and mesh with the other bevel gear, thereby driving the shaft to reverse, thereby driving the condenser connected to the shaft to swing back and forth rapidly, so that the water droplets attached to the inner wall of the condenser are thrown to the inner wall of the lower end of the condenser by centrifugal force, and then open the valve to allow the thrown water to fall into the measuring cylinder.

[0027] 3. Beneficial effects

[0028] Compared with the prior art, the advantages of the present invention are:

[0029] 1. In the present invention, the timer, wireless temperature sensor and pressure sensing component can ignore the adsorption error of water on the inner wall of the pipe, greatly improving the accuracy of the entire measurement process.

[0030] 2. By setting up a sealing box and placing the electric heating jacket inside the sealing box, it can effectively seal and keep the distillation flask warm when heating it, thereby improving the efficiency of distillation. By setting up a sealing plate, when closing the sealing cover, the sealing plate can also be driven to seal the connecting pipe, thereby reducing heat loss and waste.

[0031] 3. By setting a rotating shaft and using an incomplete bevel gear and a bevel gear, the condenser tube can swing back and forth, thereby performing a water-spinning effect, making it easier to fully remove the water adhering to the inner wall.

[0032] 4. By setting a clamp block and using a spring clamp block, the measuring cylinder can be effectively fixed to avoid dislocation of the measuring cylinder. By setting a pressure sensing component, it can have a weighing function to achieve a double and accurate measurement of the amount of water in the measuring cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the front side of the overall structure of the present invention;

[0034] Figure 2 It is a partial cross-sectional schematic diagram of the front side of the sealing box structure of the present invention;

[0035] Figure 3 It is a schematic diagram of the front side of a part of the structure of the present invention;

[0036] Figure 4 It is a schematic diagram of the front side of a partial structure of the present invention;

[0037] Figure 5 It is a partial cross-sectional expansion schematic diagram of the front side of part of the structure of the present invention;

[0038] Explanation of the numbers in the figure: 1. Base; 2. Sealing box; 3. Electric heating jacket; 4. Sealing cover; 5. Through hole; 6. Sealing plate; 7. Transmission rod; 8. Connecting pipe; 9. Distillation flask; 10. Motor; 11. Rotating shaft; 12. Condenser; 13. Placement seat; 14. Clamp; 15. Pressure sensing assembly; 16. Measuring cylinder; 101. Guide rod; 201. Placement groove; 202. Placement port; 401. Driving wheel; 402. Pin; 403. Rubber pad; 701. Driven wheel; 702. Gear; 601. Rack; 602. Sealing strip; 603. Arc surface; 801. Hose; 1001. Incomplete bevel gear; 1002. Motor seat; 1101. Bevel gear; 1201. Valve; 1301. Clamp groove; 1401. Inclined surface; 1402. Spring; 1601. Receiving bucket. DETAILED DESCRIPTION

[0039] Please refer to Figures 1-5. The present invention provides a technical solution:

[0040] A device for detecting organic chlorine content in crude oil includes a base 1, a sealed box 2 is fixedly connected to the top surface of the right side of the base 1, an electric heating sleeve 3 is installed on the inner wall of the lower end of the sealed box 2, a sealing cover 4 is rotatably connected to the front wall of the upper end of the sealed box 2, the right end of the sealing cover 4 is rotatably connected to the inner wall of the placement port 202 through a pin 402, the pin 402 near the upper side passes through the inner wall of the placement port 202 and extends into the placement groove 201 and is sleeved with a driving wheel 401, a through hole 5 is opened on the inner wall of the upper end of the sealed box 2, and two sealing plates 6 are provided on the inner wall of the upper end of the sealed box 2 in a bilaterally symmetrical structure, and an arc surface 603 is opened on the inner end surface of the sealing plate 6. The outer wall of the plate 6 is slidably connected to the inner wall of the placement groove 201, and a sealing strip 602 is bonded to the inner end surface of the sealing plate 6. A rack 601 is connected and fixed to the upper front wall of the right end of the sealing plate 6 near the right side, and a rack 601 is connected and fixed to the lower side of the front wall of the sealing plate 6 near the left side. The two racks 601 are respectively engaged with the upper and lower sides of the gear 702 for transmission. A transmission rod 7 is provided inside the right side of the upper end of the sealing box 2. The outer wall of the front end of the transmission rod 7 is sleeved with a driven wheel 701, and the driven wheel 701 is meshed with the driving wheel 401 for transmission. The outer wall of the front end of the transmission rod 7 is rotatably connected to the inner wall of the placement groove 201, and the outer wall of the rear end of the transmission rod 7 is sleeved with a gear 702;

[0041] A connecting pipe 8 is provided in the through hole 5 and the sealing plate 6, and a distillation flask 9 is provided at the lower end of the connecting pipe 8. The distillation flask 9 is placed in the electric heating jacket 3. A condenser 12 is provided on the left side of the sealed box 2, and a valve 1201 is installed inside the lower end of the condenser 12. The condenser 12 is arranged with an inclined structure with left low and right high. A swing assembly for making the condenser 12 swing back and forth is provided on the left side of the sealed box 2. The swing assembly includes a motor 10, which is fixed to the left wall of the upper end of the sealed box 2, and a rotating shaft 11 is provided on the upper side of the motor 10. The outer wall of the output end of the motor 10 is connected and fixed with an incomplete bevel gear 1001, and the outer wall of the right end of the rotating shaft 11 is rotatably connected to the left wall of the sealed box 2. The outer wall of the rotating shaft 11 is connected and fixed with two bevel gears 1101 in a left-right symmetrical structure. The two bevel gears 1101 are meshed with the incomplete bevel gear 1001 for transmission. The outer wall of the upper end of the condenser 12 is connected and fixed to the outer wall of the left end of the rotating shaft 11. The rotating shaft 11 drives the condenser 12 to swing back and forth, realizing the effect of throwing off water and collecting and discharging attached water;

[0042] A placement seat 13 is provided on the top surface of the left side of the base 1. A plurality of clamping blocks 14 are provided in an annular structure inside the placement seat 13. A pressure sensing component 15 is provided on the lower side of the placement seat 13. A measuring cylinder 16 is provided on the upper side of the placement seat 13. A receiving bucket 1601 is connected to the upper end of the measuring cylinder 16. The receiving bucket 1601 is provided in a conical structure and is located on the lower side of the condenser tube 12.

[0043] A timer and a pressure measurement module are provided in the pressure sensing assembly 15, and a wireless temperature sensor is provided in the distillation flask 9. The pressure sensing assembly wirelessly receives the monitoring signal of the wireless temperature sensor. The triggering and updating of the timer respond to the monitoring values ​​of both the pressure measurement module and the wireless temperature sensor. The pressure sensing assembly obtains the final organic chlorine content based on multiple output signals of the timer and the output value of the pressure measurement module.

[0044] Specifically, the left top surface of the base 1 is a bilaterally symmetrical structure connected to two guide rods 101 , the guide rods 101 are cylindrically arranged, and the base 1 is a structure with the left side lower and the right side higher. The guide rods 101 serve to fix the placement seat 13 .

[0045] Furthermore, a placement groove 201 is provided inside the upper end of the sealed box 2 , and a placement opening 202 is provided on the front wall of the upper end of the sealed box 2 . The placement opening 202 is convenient for placing and taking out the distillation flask 9 .

[0046] Furthermore, the right end of the sealing cover 4 is rotatably connected to the inner wall of the placement port 202 through a pin shaft 402. The pin shaft 402 near the upper side passes through the inner wall of the placement port 202 and extends into the placement groove 201 and is sleeved with a driving wheel 401. A rubber pad 403 is bonded to the outer wall of the sealing cover 4. The outer wall of the sealing cover 4 is in close contact with the inner wall of the placement port 202. The rubber pad 403 makes the contact between the sealing cover 4 and the inner wall of the placement port 202 tighter, thereby improving the sealing performance.

[0047] Furthermore, a driven wheel 701 is sleeved on the outer wall of the front end of the transmission rod 7, and the driven wheel 701 is meshed with the driving wheel 401 for transmission. The outer wall of the front end of the transmission rod 7 is rotatably connected to the inner wall of the placement groove 201, and the outer wall of the rear end of the transmission rod 7 is sleeved on the gear 702. The gear 702 drives the two sealing plates 6 to open and close at the same time. At the same time, the transmission rod 7 plays a linkage role in which the sealing plate 6 follows the opening after the sealing cover 4 is opened.

[0048] Furthermore, an arc-shaped surface 603 is provided on the inner end face of the sealing plate 6, and the outer wall of the sealing plate 6 is slidably connected to the inner wall of the placement groove 201. A sealing strip 602 is bonded to the inner end face of the sealing plate 6. A rack 601 is connected and fixed to the upper front wall of the right end of the sealing plate 6 near the right side, and a rack 601 is connected and fixed to the lower side of the front wall of the sealing plate 6 near the left side. The two racks 601 are respectively engaged with the upper and lower sides of the gear 702 for transmission, and the sealing strip 602 plays a role in sealing between the connecting pipe 8 and the through hole 5.

[0049] Furthermore, the middle outer wall of the connecting tube 8 is in close contact with the inner end face of the sealing plate 6, and a hose 801 is connected through the upper end of the connecting tube 8. The left end of the hose 801 is connected and fixed to the inner wall of the upper end of the condenser tube 12. The hose 801 can prevent the condenser tube 12 from being affected during rotation.

[0050] Furthermore, the outer wall of the upper end of the distillation flask 9 is connected and fixed with an external thread, and the outer wall of the upper end of the distillation flask 9 is threadedly connected to the inner wall of the lower end of the connecting pipe 8. The distillation flask 9 is placed in the electric heating jacket 3, and the threaded distillation flask 9 and the connecting pipe 8 are easy to disassemble.

[0051] Furthermore, a motor base 1002 is connected and fixed to the lower end of the motor 10, and the motor base 1002 is connected and fixed to the upper left wall of the sealing box 2. An incomplete bevel gear 1001 is connected and fixed to the outer wall of the output end of the motor 10, and the incomplete bevel gear 1001 enables the rotating shaft 11 to realize forward and reverse rotation.

[0052] Furthermore, a valve 1201 is installed inside the lower end of the condenser 12, and the outer wall of the upper end of the condenser 12 is fixedly connected to the outer wall of the left end of the rotating shaft 11. The condenser 12 is arranged in an inclined structure with the left side lower and the right side higher. The condenser 12 has the function of condensing water vapor into water.

[0053] Furthermore, the inner wall of the upper end of the placement seat 13 is annular in structure and has multiple clamping grooves 1301. The rear end of the placement seat 13 is slidably connected to the outer wall of the guide rod 101. The placement seat 13 plays the role of placing and fixing the measuring cylinder 16.

[0054] Furthermore, a slope 1401 is provided on the top surface of the inner end of the clamping block 14, and the outer wall of the outer end of the clamping block 14 slides with the inner wall of the clamping plate groove 1301. A spring 1402 is connected and fixed to the end surface of the outer end of the clamping block 14, and the outer end of the spring 1402 is connected and fixed to the inner wall of the outer end of the clamping plate groove 1301. The clamping block 14 with the slope 1401 facilitates the rapid placement of the measuring cylinder 16 into the placement seat 13.

[0055] It is worth noting that the outer wall of the lower end of the measuring cylinder 16 is in movable contact with the inner end face of the clamping block 14, and the upper end of the measuring cylinder 16 is connected to a receiving bucket 1601, which is arranged in a conical structure. The receiving bucket 1601 is located on the lower side of the condenser 12. The receiving bucket 1601 with a conical structure is convenient for receiving the water flowing out of the condenser 12.

[0056] It is worth noting that the top surface of the pressure sensing component 15 is in active contact with the bottom surface of the placement seat 13. The pressure sensing component 15 is placed directly below the placement seat 13. The pressure sensing component 15 plays a weighing role, so that on the basis of reading the scale lines on the measuring cylinder 16, calculations can also be performed based on weight, thereby improving the accuracy of the data.

[0057] In addition, a method for using a device for detecting organic chlorine content in crude oil comprises the following steps:

[0058] S1. First, crude oil is loaded into the distillation flask 9, and then the sealing cover 4 is opened. At this time, the driving wheel 401 connected to the sealing cover 4 engages with the driven wheel 701 connected to the transmission rod 7, thereby driving the connected gear 702 to rotate. The gear drives the two meshing racks 601, causing the two sealing plates 6 to move outward. Then, the distillation flask 9 is placed into the sealing box 2.

[0059] S2. The lower end of the connecting tube 8 is then inserted into the sealing box 2 through the through hole 5 to connect to the distillation flask 9. The sealing cover 4 is then closed. This causes the gear 702 on the transmission rod 7 to drive the meshing rack 601, so that the curved surfaces 603 on the two sealing plates 6 can be clamped onto the outer wall of the connecting tube 8, thereby achieving a seal.

[0060] S3, then open the valve 1201, place the measuring cylinder 16 in the placement seat 13, the clamping block 14 in the placement seat 13 will clamp the measuring cylinder 16 under the action of the spring 1402, so that the measuring cylinder 16 is fixed, and then turn on the electric heating jacket 3 to heat the distillation flask 9. After the temperature of the crude oil in the distillation flask 9 reaches the critical distillation temperature, water vapor begins to be released and enters the connecting pipe 8, the connecting pipe 8 and the condenser 12 in sequence. At the same time, the pressure sensing component 15 receives the wireless temperature sensor to trigger the timer to start timing when the critical temperature is reached. After the water vapor enters the above three, it first adheres to the inner walls of the three and does not directly enter the measuring cylinder 16. When the inner walls of the three are saturated with adsorption, the water droplets condensed and rolled down in the condenser 12 begin to drip evenly into the measuring cylinder 16;

[0061] S4. After the first drop of water falls into the graduated cylinder 16, the pressure measurement module sends a trigger signal, and the timer stops counting. The timing duration is T1. The timer is then started again and starts counting. When the distillation operation is completed and no water drops fall into the graduated cylinder 16, the timer ends counting. The timing duration is now T2. At this time, data is recorded according to the scale lines on the graduated cylinder 16. The pressure measurement module then weighs the weight M1 of the water in the graduated cylinder 16. Finally, the pressure sensing component obtains the total weight M of the organic chlorine according to the following formula: M=M1+M1*T1 / T2=M1*((T1+T2) / T2). In this process, since the water vapor release rate is fixed, the weight of the water vapor remaining on the inner walls of the three components can be inferred from the dripping rate at the time of water vapor adsorption saturation. This eliminates the need for the final step of swinging or purging the inner walls of the three components for compensation measurement, thereby improving measurement accuracy.

[0062] S5. After the measurement is completed, close the valve 1201 on the condenser 12, and use the incomplete bevel gear 1001 of the motor 10 to rotate, so that the incomplete bevel gear 1001 first engages with one of the bevel gears 1101, thereby driving the rotating shaft 11 to rotate in one direction, and then the incomplete bevel gear 1001 will separate from the bevel gear 1101 and engage with the other bevel gear 1101, thereby driving the rotating shaft 11 to reverse, thereby achieving the condenser 12 connected to the rotating shaft 11 to swing back and forth rapidly, so that the water droplets attached to the inner wall of the condenser 12 are thrown to the inner wall of the lower end of the condenser 12 by centrifugal force, and then open the valve 1201 to allow the thrown water to fall into the measuring cylinder 16, and finally dry the inner walls of the three through external drying equipment or dry them naturally.

[0063] In the present invention, the timer, the wireless temperature sensor and the pressure sensing component can be used to ignore the adsorption error of water on the inner wall of the pipeline, thereby greatly improving the accuracy of the entire measurement process.

Claims

1. A device for detecting organic chlorine content in crude oil, comprising a base, characterized in that: A sealing box is fixedly connected to the top surface of the right side of the base, a distillation flask is arranged in the sealing box, a condenser is arranged on the left side of the sealing box, a swinging assembly for making the condenser swing back and forth is arranged on the left side of the sealing box, a placement seat is provided on the top surface of the left side of the base, a plurality of clamping blocks are arranged in an annular structure in the placement seat, a pressure sensing assembly is provided on the lower side of the placement seat, and a measuring cylinder is provided on the upper side of the placement seat, wherein a timer and a pressure measuring module are provided in the pressure sensing assembly, a wireless temperature sensor is provided in the distillation flask, the pressure sensing assembly wirelessly receives the monitoring signal of the wireless temperature sensor, and the triggering and updating of the timer respond to the monitoring signals of both the pressure measuring module and the wireless temperature sensor. The distillation flask is heated to measure the value. When the temperature of the crude oil in the distillation flask reaches the critical temperature of distillation, water vapor begins to be released and enters the connecting pipe, hose and condenser in sequence. At the same time, the pressure sensing component receives the critical temperature from the wireless temperature sensor and triggers the timer to start timing. After the first drop of water falls into the measuring cylinder, the pressure measurement module sends a trigger signal, and the timer stops timing. The timing duration is T1, and then the timer is started again to start timing. When the distillation operation is completed and no water drops fall into the measuring cylinder, the timer ends timing. The timing duration is T2. The pressure sensing component obtains the total weight of water according to the multiple output signals of the timer and the output value of the pressure measurement module.

2. The device for detecting organic chlorine content in crude oil according to claim 1, characterized in that: An electric heating sleeve is installed on the inner wall of the lower end of the sealing box, and a sealing cover is rotatably connected to the front wall of the upper end of the sealing box. A through hole is provided on the inner wall of the upper end of the sealing box. The inner wall of the upper end of the sealing box is a left-right symmetrical structure with two sealing plates. The inner end surface of the sealing plate is provided with an arc surface. A connecting pipe is provided in the through hole and the sealing plate. A distillation flask is provided at the lower end of the connecting pipe. The distillation flask is placed in the electric heating sleeve. The top surface of the left side of the base is a left-right symmetrical structure with two guide rods connected thereto. The guide rods are arranged in a cylindrical structure, and the base is arranged in a left-low and right-high structure.

3. The device for detecting organic chlorine content in crude oil according to claim 2, characterized in that: A placement groove is provided inside the upper end of the sealing box, a placement opening is provided on the front wall of the upper end of the sealing box, the right end of the sealing cover is rotatably connected to the inner wall of the placement opening through a pin shaft, and the pin shaft near the upper side passes through the inner wall of the placement opening and extends into the placement groove and is sleeved with a driving wheel; The outer wall of the sealing plate is slidably connected to the inner wall of the placement groove, and a sealing strip is bonded to the inner end face of the sealing plate. A rack is connected and fixed to the upper front wall of the right end of the sealing plate near the right side, and a rack is connected and fixed to the lower side of the front wall of the sealing plate near the left side. A transmission rod is provided inside the right side of the upper end of the sealing box, and a gear is sleeved on the outer wall of the rear end of the transmission rod. The two racks are respectively engaged with the upper and lower sides of the gear for transmission, and a driven wheel is sleeved on the outer wall of the front end of the transmission rod. The driven wheel is engaged with the driving wheel for transmission, and the outer wall of the front end of the transmission rod is rotatably connected to the inner wall of the placement groove.

4. The device for detecting organic chlorine content in crude oil according to claim 3, characterized in that: The swing assembly includes a motor, which is fixed to the left wall of the upper end of the sealing box. A rotating shaft is provided on the upper side of the motor. An incomplete bevel gear is connected and fixed to the outer wall of the output end of the motor. The outer wall of the right end of the rotating shaft is rotatably connected to the left wall of the sealing box. The outer wall of the rotating shaft is connected and fixed with two bevel gears in a left-right symmetrical structure. The two bevel gears are engaged with the incomplete bevel gear for transmission. The outer wall of the upper end of the condenser is connected and fixed to the outer wall of the left end of the rotating shaft.

5. The device for detecting organic chlorine content in crude oil according to claim 4, characterized in that: A valve is installed inside the lower end of the condenser, and the condenser is arranged in an inclined structure with the left side lower and the right side higher.

6. The device for detecting organic chlorine content in crude oil according to claim 5, characterized in that: The outer wall of the middle portion of the connecting pipe is in close contact with the inner end surface of the sealing plate. A hose is connected through the upper end of the connecting pipe. The left end of the hose is connected and fixed through the inner wall of the upper end of the condensing pipe.

7. The device for detecting organic chlorine content in crude oil according to claim 6, characterized in that: The outer wall of the upper end of the distillation flask is connected and fixed with an external thread, and the outer wall of the upper end of the distillation flask is threadedly connected to the inner wall of the lower end of the connecting pipe.

8. The device for detecting organic chlorine content in crude oil according to claim 7, characterized in that: The inner wall of the upper end of the placement seat is annular in structure and is provided with a plurality of clamping plate grooves, and the rear end of the placement seat is slidably connected to the outer wall of the guide rod.

9. The device for detecting organic chlorine content in crude oil according to claim 8, characterized in that: The top surface of the inner end of the clamping block is provided with an inclined surface, the outer wall of the outer end of the clamping block is slidably matched with the inner wall of the clamping plate groove, the outer end surface of the clamping block is connected and fixed with a spring, and the outer end of the spring is connected and fixed with the inner wall of the outer end of the clamping plate groove.

10. The device for detecting organic chlorine content in crude oil according to claim 9, characterized in that: The upper end of the measuring cylinder is connected to a receiving bucket, which is arranged in a conical structure. The receiving bucket is located at the lower side of the condenser tube, and the outer wall of the lower end of the measuring cylinder is in active contact with the inner end surface of the clamping block.

11. The device for detecting organic chlorine content in crude oil according to claim 10, characterized in that: The top surface of the pressure sensing component is in active contact with the bottom surface of the placement seat, and the pressure sensing component is placed directly below the placement seat.

12. A method for using the device for detecting organic chlorine content in crude oil according to claim 11, characterized in that: The following steps are involved: S1. First, crude oil is loaded into the distillation flask, and then the sealing cover is opened. At this time, the driving wheel connected to the sealing cover meshes with the driven wheel connected to the transmission rod, thereby driving the connected gears to rotate. The gears then drive the two meshing racks, causing the two sealing plates to move outward. The distillation flask is then placed into the sealed box. S2. The lower end of the connecting tube is then inserted into the sealing box through the through hole to connect to the distillation flask. The sealing cover is then closed. At this time, the gear on the transmission rod drives the meshing rack, so that the curved surfaces of the two sealing plates can be clamped on the outer wall of the connecting tube to seal it. S3. Then open the valve and place the graduated cylinder in the placement seat. The clamp in the placement seat will clamp the graduated cylinder under the action of the spring, so that the graduated cylinder is fixed. Then turn on the electric heating jacket to heat the distillation flask. After the temperature of the crude oil in the distillation flask reaches the critical distillation temperature, water vapor begins to be released and enters the connecting pipe, hose and condenser in sequence. At the same time, the pressure sensing component receives the signal from the wireless temperature sensor that the critical temperature has been reached, triggering the timer to start timing. After entering the above three parts, the water vapor first adheres to the inner walls of the three parts and does not directly enter the graduated cylinder. When the inner walls of the three parts are saturated with adsorption, the water droplets condense in the condenser and roll down and begin to drip evenly into the graduated cylinder. S4. After the first drop of water falls into the graduated cylinder, the pressure measurement module sends a trigger signal, and the timer stops timing. The timing duration is T1. Then the timer is started again. When the distillation operation is completed and no water drops fall into the graduated cylinder, the timer ends timing. The timing duration is now T2. At this time, data is recorded according to the scale lines on the graduated cylinder. Then, the pressure measurement module weighs the weight M1 of the water in the graduated cylinder at this time. Finally, the pressure sensing component calculates the weight according to the formula M=M1+M1*T1 / T2=M1*((T1+T2) / T2) to obtain a weight equal to the total weight M of the water. S5. After the measurement is completed, close the valve on the condenser tube, use the incomplete bevel gear of the motor to rotate, so that the incomplete bevel gear first meshes with one of the bevel gears, thereby driving the rotating shaft to rotate in one direction, and then the incomplete bevel gear will separate from the bevel gear and mesh with the other bevel gear, thereby driving the rotating shaft to reverse, thereby achieving the condenser tube connected to the rotating shaft to swing back and forth rapidly, so that the water droplets attached to the inner wall of the condenser tube are thrown to the inner wall of the lower end of the condenser tube by centrifugal force, and then open the valve to allow the thrown water to fall into the measuring cylinder, and finally dry the inner walls of the three tubes through external drying equipment or dry them naturally.

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