Laboratory crude oil distillation measuring device

Abstract

The utility model discloses a crude oil distillation measuring device for a laboratory. Comprising a machine case, a machine base, a lifter, a heating type magnetic stirrer, a mounting table, a first electric push rod, an electric heating cover, a round-bottom flask, a first three-way electromagnetic valve, a connecting pipe, a distillation receiving pipe, a condensation pipe, a liquid cooling sleeve, a circulating liquid cooling device, a liquid collecting box, a cleaning liquid box, a waste liquid box, a second three-way electromagnetic valve and a wireless temperature sensor. The oil sample in the round-bottom flask can be uniformly heated, the oil sample mixture is uniformly dispersed and homogenized by matching with magnetic stirring, the occurrence of explosion boiling is effectively reduced, the detection is not influenced by the quality of crude oil, and the device can be used for detection items such as crude oil moisture detection in a laboratory; the device is high in automation degree and easy to operate, has an automatic cleaning function and is very simple to maintain, the labor intensity of inspection personnel is greatly reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crude oil detection, and in particular relates to a laboratory crude oil distillation determination device. Background Art

[0002] In the process of crude oil distillation component detection, it is usually necessary to add a suitable distillation solvent to dilute the crude oil. For example, for water detection, solvents such as gasoline, solvent oil, toluene, and xylene will be added. The solvent and water form an azeotropic mixture to bring out the water more thoroughly, and the result is more accurate. However, during the actual inspection, due to the uncertainty of the quality of the oil sample, the boiling characteristics of the crude oil and the solvent after mixing will change due to the substances and their distribution in the crude oil, and the water-oil mutual inclusion structure in the crude oil is subject to different expansion coefficients, resulting in the oil sample to produce explosive boiling during heating and distillation, which not only affects the accuracy of the test results, but also has certain safety hazards. The existing technology will heat the oil sample in a water bath. Although this method heats evenly and reduces the explosive boiling phenomenon to a certain extent, the operation process and subsequent cleaning and maintenance are relatively troublesome. For this reason, it is very necessary to develop a laboratory crude oil distillation measurement device that effectively reduces explosive boiling and is simple to operate and maintain. Utility Model Content

[0003] The utility model aims to provide a laboratory crude oil distillation measuring device which can effectively reduce boiling and is simple to operate and maintain.

[0004] The purpose of the utility model is achieved in this way, including a chassis, a base, a lifter, a heating type magnetic stirrer, a mounting platform, a first electric push rod, an electric heating cover, a round bottom flask, a first three-way solenoid valve, a connecting pipe, a distillation receiving pipe, a condenser, a liquid cooling jacket, a circulating liquid cooling device, a liquid collecting box, a cleaning liquid tank, a waste liquid tank, a second three-way solenoid valve, and a wireless temperature sensor, wherein the chassis is arranged on the base, the lifter is arranged at the bottom of the chassis, the heating type magnetic stirrer and the mounting platform are both arranged on the lifter, and there are two mounting platforms, which are respectively arranged on the heating type magnetic stirrer and the mounting platform. On both sides of the stirrer, the top placement surface of the heating type magnetic stirrer is an inwardly concave arc structure, and the bottom of the round-bottom flask is embedded in and placed in the inward concave part of the top of the heating type magnetic stirrer, a wireless temperature sensor is installed in the round-bottom flask, and a first electric push rod is horizontally arranged on the mounting platform, and the pushing part of the first electric push rod is fixedly connected to one side of the electric heating cover, and the other side of the electric heating cover is provided with an inwardly concave structure with the same shape as the round-bottom flask, so that after the first electric push rod pushes the electric heating cover, the side surface of the round-bottom flask can be embedded in the inwardly concave structure of the electric heating cover, and the two electric heating covers are The concave structure and the arc structure of the heating type magnetic stirrer jointly cover the body of the round-bottom flask and the connection between the body and the bottleneck; the bottom opening of the first three-way solenoid valve is provided with a sealing ring, which corresponds to the mouth of the round-bottom flask; the side opening of the first three-way solenoid valve is connected with a vertical distillation receiving tube through a downwardly inclined connecting pipe; the upper end of the distillation receiving tube is connected with a condenser; the outer sleeve of the condenser is provided with a liquid cooling jacket; the liquid cooling jacket is connected with a circulating liquid cooling device through a pipeline; the lower end of the distillation receiving tube is connected with a liquid collecting box; an electronic liquid level gauge is provided in the liquid collecting box; a waste A liquid tank, a cleaning liquid tank is provided above the waste liquid tank, a solenoid valve is provided at the discharge port at the bottom of the liquid collecting tank, the solenoid valve is connected to the waste liquid tank through a pipeline, the first liquid pump on the cleaning liquid tank is connected to the second three-way solenoid valve through a pipeline, one of the outlets of the second three-way solenoid valve is connected to the flushing liquid inlet at the top of the condenser tube through the first cleaning liquid pipe, and the flushing liquid inlet is provided with a one-way valve, the other outlet of the second three-way solenoid valve is connected to the top port of the first three-way solenoid valve through the second cleaning liquid pipe, and the second liquid pump on the cleaning liquid tank is connected to the nozzle on the top of the liquid collecting tank through the third cleaning liquid pipe.

[0005] The lifter can specifically be a flat lifter. The heating magnetic stirrer is a heating and stirring device well known to those skilled in the art. It realizes magnetic stirring while heating. The magnetic stirring can usually be coordinated with a magnetic stirrer. The liquid is stirred by rotating the magnetic stirrer. The circulating liquid cooling device includes a refrigeration component, which uses the coolant to continuously circulate with the liquid cooling jacket to ensure temperature stability and normal condensation of the condenser. The wireless temperature sensor is a common temperature measurement device in this field. It itself has components such as a wireless module and a rechargeable battery, which are used to wirelessly transmit detection data without the need for additional power supply.

[0006] In measuring the water content of crude oil, a water-insoluble solvent is added to the oil sample. The solvent dissolves, dilutes and disperses the crude oil, which is common knowledge in the art.

[0007] Preferably, a controller is also included. The controller can specifically be a PLC logic controller familiar to those skilled in the art. The lifter, heating magnetic stirrer, first electric push rod, second three-way solenoid valve, circulating liquid cooling device, and various solenoid valves, pumps and other equipment can be electrically connected to the controller. The controller can realize the start and stop of the above-mentioned equipment and perform logical control in a certain order. The connection relationship between these controlled components and the controller and the control process are all well-known technologies in the art. A control panel, display screen, etc. used in conjunction with the controller can also be set on the machine base.

[0008] Preferably, a second electric push rod is provided above the chassis, and the second electric push rod is fixed to the chassis through a bracket. The piston rod of the second electric push rod is vertically downward, and a scraper is provided at the end of the piston rod. The scraper is located at the top inside the condenser, and the scraper is in contact with the inside of the condenser. A dynamic seal is provided between the piston rod and the top of the condenser, and the dynamic seal enhances the sealing performance while ensuring the reciprocating motion of the piston rod.

[0009] Preferably, the round-bottom flask is equipped with a magnetic stirring bar, which is a magnetic stirring component well known to those skilled in the art and is used in conjunction with a magnetic stirrer.

[0010] Preferably, the first three-way solenoid valve and the second three-way solenoid valve are both fixedly connected to the chassis via a bracket, and the bracket connects each component to the chassis, thereby providing strong stability.

[0011] Preferably, the connecting pipe, the distillation receiving pipe and the liquid cooling jacket are all provided with a bracket, and the bracket is fixedly connected to the chassis, and the various components are connected to the chassis through the bracket, which has strong stability.

[0012] Preferably, a liquid guiding hopper is provided at the lower part of the distillation receiving tube, and an opening is provided at the center of the bottom of the liquid guiding hopper, and the liquid guiding hopper is used for guiding the liquid.

[0013] Preferably, an electromagnetic valve is provided on the top of the condenser tube, and the electromagnetic valve is opened for ventilation.

[0014] Preferably, the waste liquid tank is provided with a waste liquid discharge pipe, the waste liquid discharge pipe is provided with a valve, the waste liquid discharge pipe extends out of the chassis, and when the waste liquid tank needs to discharge waste liquid, the waste liquid is discharged through the valve.

[0015] During the quality monitoring of pipeline crude oil, the device can be used to test oil samples, establish a data change table of monitoring items before and after crude oil pipeline transportation, and the frequency is at least twice a week; establish a curve of changes over time before and after crude oil pipeline transportation, and update it continuously; set a certain range as the normal range, and when the change range exceeds a certain degree, set the first, second, third, and fourth level warning areas.

[0016] The beneficial effects of the utility model are as follows: the utility model can evenly heat the oil sample in the round-bottom flask, cooperate with magnetic stirring to evenly disperse the oil sample mixture, effectively reduce the occurrence of boiling after homogenization, and the detection is not affected by the quality of crude oil, and can be used for laboratory detection of crude oil moisture and other detection items; the utility model has a high degree of automation, is easy to operate, and has an automatic cleaning function, the equipment maintenance is very simple, which greatly reduces the labor intensity of inspectors and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure after the middle lifter is lowered and no round bottom flask is placed;

[0019] Figure 3 It is a side view structural diagram of a round bottom flask and an electric heating mantle;

[0020] In the figure: 1-chassis, 2-base, 3-lifter, 4-heating magnetic stirrer, 5-mounting table, 6-first electric push rod, 7-electric heating cover, 8-round bottom flask, 9-first three-way solenoid valve, 10-connecting pipe, 11-distillation receiving pipe, 12-condenser, 13-liquid cooling jacket, 14-circulating liquid cooling device, 15-liquid collecting box, 16-cleaning liquid box, 17-waste liquid box, 18-second three-way solenoid valve, 19-wireless temperature sensor, 20-electronic liquid level meter, 21-first cleaning liquid pipe, 22-second cleaning liquid pipe, 23-third cleaning liquid pipe, 24-second electric push rod, 25-scraper, 26-liquid guide bucket, 27-electromagnetic air valve, 28-waste liquid discharge pipe. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the embodiments and drawings, but the present invention is not limited in any way. Any changes or substitutions made based on the teachings of the present invention belong to the protection scope of the present invention.

[0022] Example 1

[0023] As attached Figure 1~Figure 3As shown, the laboratory crude oil distillation measuring device of this embodiment includes a chassis 1, a base 2, a lifter 3, a heating type magnetic stirrer 4, a mounting platform 5, a first electric push rod 6, an electric heating cover 7, a round bottom flask 8, a first three-way solenoid valve 9, a connecting pipe 10, a distillation receiving pipe 11, a condenser 12, a liquid cooling jacket 13, a circulating liquid cooling device 14, a liquid collecting box 15, a cleaning liquid box 16, a waste liquid box 17, a second three-way solenoid valve 18, and a wireless temperature sensor 19. The chassis 1 is arranged on the base 2, the lifter 3 is arranged at the bottom of the chassis 1, the heating type magnetic stirrer 4 and the mounting platform 5 are both arranged on the lifter 3, and there are two mounting platforms 5, which are respectively arranged on both sides of the heating type magnetic stirrer 4, and the top placement surface of the heating type magnetic stirrer 4 is The round-bottom flask 8 has a concave arc structure, and the bottom of the round-bottom flask 8 is embedded in and placed in the concave part of the top of the heating type magnetic stirrer 4. The round-bottom flask 8 is equipped with a wireless temperature sensor 19. A first electric push rod 6 is horizontally arranged on the mounting platform 5. The pushing portion of the first electric push rod 6 is fixedly connected to one side of the electric heating cover 7. The other side of the electric heating cover 7 is provided with a concave structure of the same shape as the round-bottom flask 8, so that after the first electric push rod 6 pushes the electric heating cover 7, the side of the round-bottom flask 8 can be embedded in the concave structure of the electric heating cover 7. The concave structures of the two electric heating covers 7 and the arc structure of the heating type magnetic stirrer 4 jointly cover the body of the round-bottom flask 8 and the connection between the body and the bottleneck. The bottom opening of the first three-way solenoid valve 9 is provided with a sealing ring, and the sealing ring and the round-bottom flask The first three-way solenoid valve 9 is connected to the vertical distillation receiving pipe 11 through a downwardly inclined connecting pipe 10, the upper end of the distillation receiving pipe 11 is connected to the condenser 12, and the outer shell of the condenser 12 is provided with a liquid cooling jacket 13, and the liquid cooling jacket 13 is connected to the circulating liquid cooling device 14 through a pipeline, and the lower end of the distillation receiving pipe 11 is connected to the collecting tank 15, and the collecting tank 15 is provided with an electronic liquid level gauge 20, and the chassis 1 is provided with a waste liquid tank 17, and a cleaning liquid tank 16 is provided above the waste liquid tank 17. The bottom discharge port of the collecting tank 15 is provided with a solenoid valve, and the solenoid valve is connected to the waste liquid tank 17 through a pipeline, and the first liquid pump on the cleaning liquid tank 16 is connected to the second three-way solenoid valve 18 through a pipeline, and one of the outlets of the second three-way solenoid valve 18 is connected to the first cleaning liquid tank 16 through a pipeline. The washing liquid pipe 21 is connected with the washing liquid inlet at the top of the condenser tube 12, and a one-way valve is provided at the washing liquid inlet. The other outlet of the second three-way solenoid valve 18 is connected with the top of the first three-way solenoid valve 9 through the second washing liquid pipe 22. The second liquid pump on the washing liquid tank 16 is connected with the nozzle at the top of the liquid collecting tank 15 through the third washing liquid pipe 23. The round-bottom flask 8 is equipped with a magnetic stirrer. The first three-way solenoid valve 9 and the second three-way solenoid valve 18 are both fixedly connected to the chassis 1 through a bracket. The connecting pipe 10, the distillation receiving pipe 11, and the liquid cooling jacket 13 are all provided with a bracket, and the bracket is fixedly connected to the chassis 1. A liquid guide hopper 26 is provided at the lower part of the distillation receiving pipe 11, and an opening is provided at the center of the bottom of the liquid guide hopper 26. An electromagnetic gas valve 27 is provided at the top of the condenser tube 12.The waste liquid tank 17 is provided with a waste liquid discharge pipe 28, the waste liquid discharge pipe 28 is provided with a valve, and the waste liquid discharge pipe 28 extends out of the chassis 1. ;

[0024] Example 2

[0025] The laboratory crude oil distillation measuring device of this embodiment is based on the embodiment 1, and a second electric push rod 24 is provided above the chassis 1, and the second electric push rod 24 is fixedly connected to the chassis 1 through a bracket. The piston rod of the second electric push rod 24 is vertically downward, and a scraper 25 is provided at the end of the piston rod. The scraper 25 is located at the top inside the condenser 12, and the scraper 25 is in contact with the inside of the condenser 12. A dynamic seal is provided between the piston rod and the top of the condenser 12; during the measurement process, when the liquid level of the liquid collecting tank 15 does not change, the second electric push rod 24 can be started to drive the scraper 25 to descend and scrape the liquid attached to the wall of the condenser 12 and the distillation receiving tube 11, and the liquid falls on the liquid guide bucket 26 and enters the liquid collecting tank 15, thereby improving the detection accuracy.

[0026] The working principle and working process of the utility model are as follows: the oil sample and solvent to be tested are loaded into the round-bottom flask 8; the round-bottom flask 8 is placed on the heating type magnetic stirrer 4, and the bottom of the round-bottom flask 8 is embedded in the concave part of the top of the heating type magnetic stirrer 4; the first electric push rod 6 is started, and the two electric heating covers 7 are moved close to the round-bottom flask 8 and cover the body of the round-bottom flask 8, and the round-bottom flask 8 is embedded in the cavity formed by the two electric heating covers 7. At this time, the two electric heating covers 7 and the concave part of the heating type magnetic stirrer 4 jointly limit the round-bottom flask 8, so that the round-bottom flask 8 is aligned, ensuring that the bottle mouth of the round-bottom flask 8 is directly opposite to the sealing ring of the bottom mouth of the first three-way electromagnetic valve 9; then the lifter 3 is started to move the round-bottom flask 8 upward, and the bottle mouth of the round-bottom flask 8 is tightly against the sealing ring to seal the bottle mouth; the heating type magnetic stirrer 4 and the electric heating covers 7 are started. , the oil sample in the round-bottom flask 8 is heated, and the all-inclusive structure composed of the heating magnetic stirrer 4 and the electric heating cover 7 can evenly heat the round-bottom flask 8, and the magnetic stirrer rotates under the action of the heating magnetic stirrer 4 to stir the oil sample, so that the oil sample mixture is evenly dispersed and evenly heated, which greatly reduces the occurrence of explosive boiling; the wireless temperature sensor 19 is used to detect the temperature of the oil sample, and the detection result is wirelessly sent to the receiving end; the component evaporates through the first three-way solenoid valve 9 and the connecting pipe 10, enters the distillation receiving pipe 11, and is condensed by the condenser 12 to form a liquid that enters the liquid collecting box 15; the liquid collecting box 15 can detect the liquid level through the electronic liquid level meter 20, and the liquid volume can be further converted to complete the oil sample measurement; after the measurement is completed, the round-bottom flask 8 is lowered, the electric heating cover 7 is retracted, and the round-bottom flask 8 can be taken out;

[0027] After each measurement is completed, a cleaning process is performed, specifically, the first three-way solenoid valve 9 is switched to a different path; the cleaning liquid in the cleaning liquid tank 16 is transported through the second three-way solenoid valve 18 and the first cleaning liquid pipe 21 to enter the condenser 12, and the condenser 12 and the distillation receiving tube 11 are rinsed, and the rinsing liquid enters the liquid collecting tank 15; the cleaning liquid in the cleaning liquid tank 16 is rinsed through the second three-way solenoid valve 18, the second cleaning liquid pipe 22, and the first three-way solenoid valve 9 to the connecting pipe 10, and the rinsing liquid enters the liquid collecting tank 15; the waste liquid in the liquid collecting tank 15 is discharged into the waste liquid tank 17 through the bottom drain port and the pipeline, and then the cleaning liquid is sprayed on the liquid collecting tank 15 through the third cleaning liquid pipe 23 and the nozzle, and the cleaning of the liquid collecting tank 15 is completed, and the waste liquid is discharged into the waste liquid tank 17, and the cleaning process is completed.

Claims

1. A laboratory crude oil distillation measuring device, comprising a chassis (1), a base (2), a lifter (3), a heating type magnetic stirrer (4), a mounting table (5), a first electric push rod (6), an electric heating cover (7), a round bottom flask (8), a first three-way solenoid valve (9), a connecting pipe (10), a distillation receiving pipe (11), a condenser (12), a liquid cooling jacket (13), a circulating liquid cooling device (14), a liquid collecting tank (15), a cleaning liquid tank (16), a waste liquid tank (17), a second three-way solenoid valve (18), and a wireless temperature sensor (19), characterized in that The chassis (1) is arranged on the base (2), the lifter (3) is arranged at the bottom of the chassis (1), the heating type magnetic stirrer (4) and the mounting platform (5) are both arranged on the lifter (3), and there are two mounting platforms (5), which are arranged on both sides of the heating type magnetic stirrer (4), respectively. The top placement surface of the heating type magnetic stirrer (4) is an inwardly concave arc structure, and the bottom of the round bottom flask (8) is embedded in and placed in the inwardly concave part of the top of the heating type magnetic stirrer (4), the round bottom flask (8) is equipped with a wireless temperature sensor (19), and a first electric push rod (6) is horizontally arranged on the mounting platform (5). The pushing portion of the first electric push rod (6) is fixedly connected to one side of the electric heating cover (7), and the other side of the electric heating cover (7) is provided with an inner concave structure of the same shape as the round-bottom flask (8), so that after the first electric push rod (6) pushes the electric heating cover (7), the side of the round-bottom flask (8) can be embedded in the inner concave structure of the electric heating cover (7), and the inner concave structures of the two electric heating covers (7) and the arc structure of the heating type magnetic stirrer (4) together cover the body of the round-bottom flask (8) and the connection between the body and the bottleneck, and the bottom opening of the first three-way solenoid valve (9) is provided with a sealing ring, and the sealing ring corresponds to the bottle opening of the round-bottom flask (8). The side port of the first three-way solenoid valve (9) is connected to a vertical distillation receiving pipe (11) through a downwardly inclined connecting pipe (10); the upper end of the distillation receiving pipe (11) is connected to a condenser (12); a liquid cooling jacket (13) is provided on the outer jacket of the condenser (12); the liquid cooling jacket (13) is connected to a circulating liquid cooling device (14) through a pipeline; the lower end of the distillation receiving pipe (11) is connected to a liquid collecting tank (15); an electronic liquid level gauge (20) is provided in the liquid collecting tank (15); a waste liquid tank (17) is provided in the chassis (1); a cleaning liquid tank (16) is provided above the waste liquid tank (17); a liquid discharge port at the bottom of the liquid collecting tank (15) is provided A solenoid valve is connected to a waste liquid tank (17) through a pipeline, a first liquid pump on the cleaning liquid tank (16) is connected to a second three-way solenoid valve (18) through a pipeline, one outlet of the second three-way solenoid valve (18) is connected to a flushing liquid inlet at the top of the condenser (12) through a first cleaning liquid pipe (21), and a one-way valve is provided at the flushing liquid inlet, another outlet of the second three-way solenoid valve (18) is connected to a top port of the first three-way solenoid valve (9) through a second cleaning liquid pipe (22), and the second liquid pump on the cleaning liquid tank (16) is connected to a nozzle at the top of the liquid collecting tank (15) through a third cleaning liquid pipe (23).

2. The laboratory crude oil distillation measuring device according to claim 1, characterized in that A second electric push rod (24) is provided above the chassis (1), and the second electric push rod (24) is fixedly connected to the chassis (1) via a bracket. The piston rod of the second electric push rod (24) is vertically downward, and a scraper (25) is provided at the end of the piston rod. The scraper (25) is located at the top of the condenser tube (12), and the scraper (25) is in contact with the inside of the condenser tube (12). A dynamic seal is provided between the piston rod and the top of the condenser tube (12).

3. The laboratory crude oil distillation measuring device according to claim 1, characterized in that The round-bottom flask (8) is equipped with a magnetic stirrer.

4. The laboratory crude oil distillation measuring device according to claim 1, characterized in that The first three-way solenoid valve (9) and the second three-way solenoid valve (18) are both fixedly connected to the chassis (1) via a bracket.

5. The laboratory crude oil distillation measuring device according to claim 1, characterized in that The connecting pipe (10), the distillation receiving pipe (11), and the liquid cooling jacket (13) are all provided with brackets, and the brackets are fixedly connected to the chassis (1).

6. The laboratory crude oil distillation measuring device according to claim 1, characterized in that A liquid guide hopper (26) is provided at the lower portion of the distillation receiving tube (11), and an opening is provided at the center of the bottom of the liquid guide hopper (26).

7. The laboratory crude oil distillation measuring device according to claim 1, characterized in that A solenoid valve (27) is provided at the top of the condenser tube (12).

8. The laboratory crude oil distillation measuring device according to claim 1, characterized in that The waste liquid tank (17) is provided with a waste liquid discharge pipe (28), the waste liquid discharge pipe (28) is provided with a valve, and the waste liquid discharge pipe (28) extends out of the chassis (1).

Images