An intelligent calibration device for an oil water content tester

Abstract

The present invention discloses an intelligent calibration device for an oil water content tester, belonging to the technical field of oil detection equipment. It includes a circulation component, and a variable volume component is connected to the circulation component. The variable volume component includes a variable container. A floating cylinder is slidably connected inside the variable container. A double-layer O-ring seal is fixedly connected to the upper end of the floating cylinder. A lead screw is fixedly connected to the upper end of the floating cylinder. A slider is threadedly connected to the lead screw. Two limit rods are fixedly connected to the upper end of the floating cylinder. Limit sleeves are fixedly connected to the left and right inner walls of the variable container, and the limit rods penetrate through the limit sleeves. A positioning component is fixedly connected inside the variable container. The present invention can not only achieve the purpose of automatic expansion and contraction through the pressure of the test medium transmitted to the inside of the circulation pipe and the variable container, but also realize the precise movement adjustment of the floating cylinder through the driving component, and can automatically and precisely extract liquid, prepare liquid, and drain liquid, realizing the automation of zero calibration and full-scale calibration and the automatic calibration of the points to be tested.

Description

Technical Field

[0001] The present invention relates to the technical field of oil detection equipment, and particularly to an intelligent calibration device for an oil water content tester. Background Art

[0002] The water content of oil refers to the percentage of the mass of water contained in crude oil and is one of the important indicators for measuring the quality of crude oil. During the oilfield exploitation process, crude oil is usually produced mixed with formation water, and the water may exist in the form of free water (existing in layers) or emulsified water (forming a stable mixture with oil). For example, if the total mass of a batch of crude oil is 1000 kg and the total amount of free water and emulsified water is 100 kg, then its water content is 10%. This parameter directly affects the economic value and processing efficiency of crude oil: high water content will increase transportation costs, exacerbate the corrosion risk of pipelines and equipment, and also reduce the refining efficiency (extra energy consumption is required for water evaporation). The industry usually measures it by distillation method (such as ASTM D4006 standard), centrifugal separation method or electronic sensor technology, and controls the water content within 0.5% - 2% through dehydration processes (such as electro-dehydration, chemical demulsification) to meet trade and refining requirements. In the later stage of oilfield development, the water content may exceed 90%, and at this time, water injection optimization or tertiary oil recovery technology is required to maintain economic benefits. If the measurement result of the oil water content is inaccurate, it will affect the economic interests of both supply and demand sides during trade settlement and easily cause trade disputes.

[0003] However, for the existing devices, before calibrating the water content meter, manual operations such as liquid preparation, liquid injection, and air exhaust are required to complete zero calibration and full-scale calibration, etc. After completing the calibration at one calibration point, the liquid needs to be drained and the operations of liquid preparation, liquid injection, air exhaust, etc. need to be carried out again. The calibration process is time-consuming and laborious, with low efficiency, and the measurement range is only limited to (0 - 3)% volume water content. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent calibration device for an oil water content tester to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An intelligent calibration device for an oil water content tester includes a circulation component. A variable volume component is connected to the circulation component. The variable volume component includes a variable container. A floating cylinder is slidably connected inside the variable container. A double-layer O-ring seal is fixedly connected to the upper end of the floating cylinder. A lead screw is fixedly connected to the upper end of the floating cylinder. A slider is threadedly connected to the lead screw. Two limit rods are fixedly connected to the upper end of the floating cylinder. Limit sleeves are fixedly connected to the left and right inner walls of the variable container, and the limit rods penetrate through the limit sleeves. A positioning component is fixedly connected inside the variable container; the limit rods and limit sleeves can limit the floating cylinder to prevent it from rotating. A positioning component is fixedly connected inside the variable container. When the medium enters the variable container, as the liquid level of the medium rises, the floating cylinder can move upward by buoyancy, and at the same time drive the slider to move upward through the lead screw.

[0007] The positioning component includes a rotating sleeve. The rotating sleeve is rotatably connected to the upper end of the variable container. A rotating box is fixedly connected to the lower end of the rotating sleeve, and the slider is slidably connected inside the rotating box. Two rotating drums and two sprockets are rotatably connected to the front and rear inner walls of the rotating box. A chain is sleeved between the rotating drum and the sprocket, and the slider is fixedly connected to the chain. An inner tube is inserted into the rotating sleeve. The inner tube is fixedly connected to two friction columns through two connecting rods, and the friction columns are inserted into the rotating drum. A driving component is fixedly connected to the upper end of the variable container. A leakage prevention component is connected to the variable container. A transmission component is fixedly connected to the upper end of the leakage prevention component; in the initial state, the friction column does not abut against the inner side wall of the rotating drum. When the inner tube moves upward, the inner tube can pull the friction column upward through the connecting rod, prompting the friction column to abut against the inner side wall of the rotating drum, playing an effective fixing role on the rotating drum, and indirectly playing a positioning role on the movement of the slider.

[0008] As a further solution of the present invention, the circulation component includes a circulation pipe. Two oil circuit interfaces for adding and discharging the medium are connected to the circulation pipe. A circulation pump and a flow meter are connected to the circulation pipe. A stirring blade is fixedly connected inside the circulation pipe on one side of the circulation pump. An online densitometer, a temperature sensor and a pressure transmitter are fixedly connected to the circulation pipe. A temperature control sleeve is installed on the circulation pipe.

[0009] As a further solution of the present invention, the driving component includes a driving box fixedly connected to the upper end of the variable container. A tooth surface is fixedly connected to the rotating sleeve. A motor is fixedly connected to the upper side wall of the driving box.

[0010] As a further solution of the present invention, a gear is rotatably connected to the upper end of the variable container, and the gear meshes with the tooth surface. The output end of the motor is fixedly connected to the gear through a transmission shaft. When the motor is started, the motor can drive the gear to rotate through the transmission shaft, so that the gear can drive the rotating sleeve to rotate through the tooth surface.

[0011] As a further solution of the present invention, the leakage prevention component includes an exhaust pipe communicated with the variable container. The upper end of the exhaust pipe is communicated with a connecting cylinder. The upper end of the connecting cylinder is communicated with a fixed cylinder. An exhaust hole is drilled on the fixed cylinder.

[0012] As a further aspect of the present invention, a fixing plate is fixedly connected inside the connecting cylinder. A plug rod is inserted into the fixing plate. A floating ball is fixedly connected to the lower end of the plug rod. As the height of the medium liquid level rises, the floating ball can move upward by buoyancy, and then drive the sealing inner sleeve through the plug rod to close the exhaust hole. Only after the medium liquid level drops, the sealing inner sleeve can automatically move downward and reset under the action of gravity.

[0013] As a further aspect of the present invention, the upper end of the plug rod is fixedly connected with a sealing inner sleeve through a cross plate, and the sealing inner sleeve is inserted into the lower end of the fixed cylinder.

[0014] As a further aspect of the present invention, the transmission assembly includes an annular magnetic plate fixedly connected to the upper end of the inner tube. An electromagnet magnetically attracted to the annular magnetic plate is fixedly connected to the upper side wall of the driving box. A first expansion bladder is fixedly connected between the annular magnetic plate and the driving box. When the electromagnet is started, the annular magnetic plate can be quickly moved upward by magnetic attraction, so that the annular magnetic plate acts on the first expansion bladder to exert a squeezing effect.

[0015] As a further aspect of the present invention, a circular plate is fixedly connected to the upper side wall of the connecting cylinder through two support rods. A sliding plate is slidably connected between the two support rods. A sealing outer sleeve is fixedly connected to the lower side wall of the sliding plate, and the sealing outer sleeve is sleeved on the fixed cylinder. A return spring is fixedly connected between the sliding plate and the fixed cylinder. When the sliding plate moves downward, it can drive the sealing outer sleeve to close the exhaust hole.

[0016] As a further aspect of the present invention, a second expansion bladder is fixedly connected between the circular plate and the sliding plate, and a transmission pipe is connected between the first expansion bladder and the second expansion bladder.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. When the present invention is used, it can not only achieve the purpose of automatic expansion and contraction through the pressure of the test medium transmitted to the inside of the circulation pipe and the variable container, but also realize the precise movement adjustment of the floating cylinder through the driving assembly, and can automatically and precisely extract liquid, dispense liquid, and drain liquid, realizing the automation of zero calibration and full-scale calibration and the automatic calibration of the points to be tested.

[0019] 2. When the present invention is used, it can automatically close the exhaust hole through the transmission assembly during manual adjustment, effectively avoiding errors in liquid extraction and drainage caused by the entry of external air.

[0020] 3. When the present invention is used, it can use the reset of the medium to close the exhaust hole through the anti-leakage assembly after the liquid level inside the variable container reaches a certain height, so as to prevent the medium from leaking. Description of the Drawings

[0021] Figure 1 3D perspective view of an intelligent calibration device for an oil water content tester

[0022] Figure 2 External view of an intelligent calibration device for an oil water content tester

[0023] Figure 3 Schematic structural view of the variable volume component in an intelligent calibration device for an oil water content tester

[0024] Figure 4 It is Figure 3 Enlarged view of location A in

[0025] Figure 5 Schematic structural view of the float in an intelligent calibration device for an oil water content tester

[0026] Figure 6 Schematic structural view of the slider in an intelligent calibration device for an oil water content tester

[0027] Figure 7 Schematic structural view of the positioning component in an intelligent calibration device for an oil water content tester

[0028] Figure 8 Schematic structural view of the anti - leakage component in an intelligent calibration device for an oil water content tester

[0029] Figure 9 State diagram of the float after upward movement in an intelligent calibration device for an oil water content tester

[0030] In the figure:

[0031] 1. Circulation component; 101. Circulation pipe; 102. Oil circuit interface; 103. Circulation pump; 104. Stirring blade; 105. Flowmeter; 106. On - line densitometer; 107. Temperature sensor; 108. Temperature control sleeve; 109. Pressure transmitter

[0032] 2. Variable volume component; 201. Variable container; 202. Float; 203. Double - layer O - ring seal; 204. Lead screw; 205. Slider; 206. Limit rod; 207. Limit sleeve

[0033] 3. Positioning component; 301. Rotating sleeve; 302. Rotating box; 303. Rotating drum; 304. Sprocket; 305. Chain; 306. Inner pipe; 307. Connecting rod; 308. Friction post

[0034] 4. Driving component; 401. Driving box; 402. Tooth surface; 403. Gear; 404. Motor; 405. Transmission shaft

[0035] 5. Leakage prevention component; 501. Exhaust pipe; 502. Connecting cylinder; 503. Fixed cylinder; 504. Exhaust hole; 505. Fixed plate; 506. Insert rod; 507. Floating ball; 508. Sealing inner sleeve; 509. Horizontal plate;

[0036] 6. Transmission component; 601. Annular magnetic plate; 602. Electromagnet; 603. First expansion bladder; 604. Support rod; 605. Circular plate; 606. Sliding plate; 607. Second expansion bladder; 608. Transmission pipe; 609. Enclosing outer sleeve; 610. Return spring. Specific implementation manner

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Embodiment 1: Please refer to Figures 1 to 7 , in the embodiment of the present invention, an intelligent calibration device for an oil water content tester includes a circulation component 1, a variable volume component 2 is connected and fixedly connected to the circulation component 1. The variable volume component includes a variable container 201 communicated with the circulation component 1. A floating cylinder 202 is slidably connected inside the variable container 201. A double-layer O-ring 203 is fixedly connected to the upper end of the floating cylinder 202. A lead screw 204 is fixedly connected to the upper end of the floating cylinder 202 by bolts. A slider 205 is threadedly connected to the lead screw 204. Two limiting rods 206 are fixedly connected to the upper end of the floating cylinder 202. Through holes are drilled in the upper side walls of the limiting rods 206, and the lead screw 204 passes through the through holes of the limiting rods 206. Limiting sleeves 207 are fixedly connected to the left and right inner walls of the variable container 201, and the limiting rods 206 pass through the limiting sleeves 207. The limiting rods 206 and the limiting sleeves 207 can limit the floating cylinder 202 to prevent the floating cylinder 202 from rotating. A positioning component 3 is fixedly connected inside the variable container 201. When the medium enters the inside of the variable container 201, as the liquid level of the medium rises, the floating cylinder 202 can move upward by buoyancy, and at the same time drive the slider 205 to move upward through the lead screw 204;

[0039] The positioning component 3 includes a rotating sleeve 301. The upper end of the variable container 201 is rotatably connected to the rotating sleeve 301. The lower end of the rotating sleeve 301 is fixedly connected to a rotating box 302. The slider 205 is slidably connected between the front and rear side walls of the rotating box 302 through the chutes on the left and right side walls. Both the front and rear inner walls of the rotating box 302 are rotatably connected with two rotating drums 303 and two sprockets 304. The shape of the rotating drum 303 is similar to the brake drum in a braking system, and the friction column 308 is similar to the brake pad for braking. When the friction column 308 contacts the rotating drum 303, it plays a fixing role on the rotating drum 303 through friction. A chain 305 is sleeved between the rotating drum 303 and the sprocket 304, and the slider 205 is fixedly connected to the chain 305. An inner tube 306 is inserted into the rotating sleeve 301, and the inner tube 306 will not contact the lead screw 204. The inner tube 306 is fixedly connected with two friction columns 308 through two connecting rods 307, and the friction columns 308 are inserted into the rotating drum 303. The rotating sleeve 301 is provided with a chute matching the connecting rod 307. The surface of the friction column 308 is rough polished. In the initial state, the friction column 308 does not abut against the inner side wall of the rotating drum 303. When the inner tube 306 moves upward, the inner tube 306 can pull the friction column 308 upward through the connecting rod 307, prompting the friction column 308 to abut against the inner side wall of the rotating drum 303, playing an effective fixing role on the rotating drum 303, and indirectly playing a positioning role on the movement of the slider 205. The upper end of the variable container 201 is fixedly connected with a driving component 4 for driving the rotation of the rotating sleeve 301. The variable container 201 is communicated with a leakage prevention component 5 for exhausting gas and preventing medium leakage. The upper end of the leakage prevention component 5 is fixedly connected with a transmission component 6 for automatically closing the exhaust hole 504.

[0040] The circulation component 1 includes a circulation pipe 101 for conveying the medium. Two oil circuit interfaces 102 for adding and discharging the medium are communicated with the circulation pipe 101. A circulation pump 103 for conveying the medium and a flowmeter 105 for measuring the flow are communicated with the circulation pipe 101. A stirring blade 104 for stirring the medium is fixedly connected inside the circulation pipe 101 on one side of the circulation pump 103. An on-line densitometer 106 for detecting the density of the medium, a temperature sensor 107 for detecting the temperature of the medium, and a pressure transmitter 109 are fixedly connected to the circulation pipe 101. A temperature control sleeve 108 for controlling the temperature of the medium is installed on the circulation pipe 101. The relevant technology here has been disclosed and can be referred to the Chinese patent document with the publication number: CN119438547A.

[0041] The driving component 4 includes a driving box 401 fixedly connected to the upper end of the variable container 201. A tooth surface 402 is fixedly connected to the side wall of the rotating sleeve 301. A motor 404 is fixedly connected to the upper side wall of the driving box 401. A gear 403 is rotatably connected to the upper end of the variable container 201, and the gear 403 meshes with the tooth surface 402. The output end of the motor 404 is fixedly connected to the gear 403 through a transmission shaft 405. When the motor 404 is started, the motor 404 can drive the gear 403 to rotate through the transmission shaft 405, so that the gear 403 can drive the rotating sleeve 301 to rotate through the tooth surface 402.

[0042] The anti-leakage component 5 includes an exhaust pipe 501 communicated with the variable container 201. The upper end of the exhaust pipe 501 is communicated with a connecting cylinder 502, so that the connecting cylinder 502, the exhaust pipe 501 and the variable container 201 form a U-shaped pipe. When the liquid level of the medium entering the variable container 201 is higher than the exhaust pipe 501, the medium enters the inside of the connecting cylinder 502, and the liquid level height of the medium inside the connecting cylinder 502 is the same as that of the variable container 201. The upper end of the connecting cylinder 502 is communicated with a fixed cylinder 503. An exhaust hole 504 is drilled in the fixed cylinder 503. A fixing plate 505 is fixedly connected inside the connecting cylinder 502. A plug rod 506 is inserted into the fixing plate 505. A floating ball 507 is fixedly connected to the lower end of the plug rod 506. As the liquid level height of the medium rises, the floating ball 507 can move upward by buoyancy, and then drive the sealing inner sleeve 508 through the plug rod 506 to close the exhaust hole 504. Only after the liquid level of the medium drops, the sealing inner sleeve 508 can automatically move downward and reset under the action of gravity. The upper end of the plug rod 506 is fixedly connected with a sealing inner sleeve 508 through a cross plate 509, and the sealing inner sleeve 5 allows 8 to be inserted into the lower end of the fixed cylinder 503.

[0043] Embodiment 2: Please refer to Figures 7 to 9, on the basis of Embodiment 1, the transmission assembly 6 includes an annular magnetic plate 601 fixedly connected to the upper end of the inner tube 306. An electromagnet 602 magnetically attracted to the annular magnetic plate 601 is fixedly connected to the upper side wall of the drive box 401. When the electromagnet 602 is activated, the annular magnetic plate 601 can be quickly moved upward by magnetic attraction. A first expansion bladder 603 is fixedly connected between the annular magnetic plate 601 and the drive box 401, so that the annular magnetic plate 601 exerts a squeezing effect on the first expansion bladder 603. A circular plate 605 is fixedly connected to the upper side wall of the communication cylinder 502 through two support rods 604. A sliding plate 606 is slidably connected between the two support rods 604. After the sliding plate 606 moves downward, it can drive the closed outer sleeve 609 to close the exhaust hole 504. A closed outer sleeve 609 is fixedly connected to the lower side wall of the sliding plate 606, and the closed outer sleeve 609 is sleeved on the fixed cylinder 503. A return spring 610 is fixedly connected between the sliding plate 606 and the fixed cylinder 503. A second expansion bladder 607 is fixedly connected between the circular plate 605 and the sliding plate 606. A transmission pipe 608 is connected between the first expansion bladder 603 and the second expansion bladder 607. The first expansion bladder 603, the second expansion bladder 607 and the transmission pipe 608 are filled with hydraulic oil.

[0044] The working principle of the present invention is:

[0045] In the initial state of the present invention, both the electromagnet 602 and the motor 404 are in the off state. The friction column 308 does not abut against the inner side wall of the rotating drum 303. The floating cylinder 202, the slider 205 and the chain 305 can all move up and down freely. When injecting the test medium into the circulation pipe 101 through the oil circuit interface 102, the gas is discharged from the exhaust hole 504 of the anti-leakage assembly 5 through the variable container 201. As the test medium is injected, the liquid level in the pipeline will rise, and the medium liquid level in the variable container 201 will also rise, thereby pushing the floating cylinder 202 upward, so as to achieve the purpose of expanding the entire pipeline. When extracting the medium in the circulation pipe 101 through the oil circuit interface 102, the medium liquid level in the variable container 201 drops. At this time, the floating cylinder 202 falls due to its own weight, achieving the purpose of volume reduction, and finally achieving the effect of automatic expansion and contraction. When the variable container 201 is in the process of expansion, when the height of the medium liquid level inside it is higher than the exhaust pipe 501, the medium will enter the communication cylinder 502. At this time, the height of the medium liquid level inside the communication cylinder 502 is the same as that of the variable container 201. As the height of the medium liquid level rises, the floating ball 507 can move upward by buoyancy, and then drive the sealed inner sleeve 508 through the insertion rod 506 to close the exhaust hole 504 to prevent the medium from leaking. Only after the medium liquid level drops, the sealed inner sleeve 508 can automatically move downward and reset under the action of gravity, and these will all be adjusted automatically;

[0046] When precise control of the lifting and lowering of the buoy 202 is required to quantitatively discharge or extract the medium, the staff first needs to start the electromagnet 602 and the motor 404. After the electromagnet 602 is started, the electromagnet 602 will attract the annular magnetic plate 601 to move upward, causing the annular magnetic plate 601 to exert a squeezing effect on the first expansion bladder 603. The hydraulic oil in the first expansion bladder 603 enters the second expansion bladder 607 through the transmission pipe 608, causing the second expansion bladder 607 to expand and push the sliding plate 606 downward. The sliding plate 606 drives the closed outer sleeve 609 to close the exhaust hole 504. At this time, the variable container 201 and the communication cylinder 502 are both in a closed state. At the same time, when the annular magnetic plate 601 moves upward, the annular magnetic plate 601 will also pull the inner tube 306 upward. When the inner tube 306 moves upward, the inner tube 306 can pull the friction column 308 upward through the connecting rod 307, causing the friction column 308 to abut against the inner side wall of the rotating drum 303, effectively fixing the rotating drum 303 through friction, and indirectly positioning the movement of the slider 205. In this state, the staff controls the motor 404, so that the motor 404 drives the gear 403 to rotate through the transmission shaft 405, enabling the gear 403 to drive the rotating sleeve 301 to rotate through the tooth surface 402. The rotating sleeve 301 drives the rotating box 302 to rotate, and the rotating box 302 drives the slider 205 to rotate, causing the slider 205 to drive the lead screw 204 to move up and down under the action of the thread. The lead screw 204 drives the buoy 202 to move up and down, and finally realizes the precise up and down movement of the buoy 202 by the motor 404. When the buoy 202 moves upward, the medium in the pipeline can be extracted into the variable container 201. The closing of the exhaust hole 504 can effectively prevent the buoy 202 from sucking in the external air together when moving upward, affecting the extraction accuracy.

[0047] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. An intelligent calibration device for an oil water content tester, comprising a circulation component (1), characterized in that, A variable capacity component (2) is connected to the cycle component (1). The variable capacity component (2) includes a variable container (201). A floating cylinder (202) is slidably connected inside the variable container (201). A double-layer O-ring seal (203) is fixedly connected to the upper end of the floating cylinder (202). A lead screw (204) is fixedly connected to the upper end of the floating cylinder (202). A slider (205) is threadedly connected to the lead screw (204). Two limit rods (206) are fixedly connected to the upper end of the floating cylinder (202). Limit sleeves (207) are fixedly connected to the left and right inner walls of the variable container (201), and the limit rods (206) are arranged through the limit sleeves (207). A positioning component (3) is fixedly connected inside the variable container (201). The positioning component (3) includes a rotating sleeve (301). The rotating sleeve (301) is rotatably connected to the upper end of the variable container (201). A rotating box (302) is fixedly connected to the lower end of the rotating sleeve (301), and the slider (205) is slidably connected inside the rotating box (302). Two rotating drums (303) and two sprockets (304) are rotatably connected to the front and rear inner walls of the rotating box (302). A chain (305) is sleeved between the rotating drum (303) and the sprocket (304), and the slider (205) is fixedly connected to the chain (305). An inner tube (306) is inserted into the rotating sleeve (301). Two friction columns (308) are fixedly connected to the inner tube (306) through two connecting rods (307), and the friction columns (308) are inserted into the rotating drum (303). A driving component (4) is fixedly connected to the upper end of the variable container (201). A leakage prevention component (5) is connected to the variable container (201). A transmission component (6) is fixedly connected to the upper end of the leakage prevention component (5). The leakage prevention component (5) includes an exhaust pipe (501) connected to the variable container (201). The upper end of the exhaust pipe (501) is connected to a connecting cylinder (502). The upper end of the connecting cylinder (502) is connected to a fixed cylinder (503). An exhaust hole (504) is drilled in the fixed cylinder (503). A fixing plate (505) is fixedly connected inside the connecting cylinder (502). A plug rod (506) is inserted into the fixing plate (505). A floating ball (507) is fixedly connected to the lower end of the plug rod (506). A sealing inner sleeve (508) is fixedly connected to the upper end of the plug rod (506) through a cross plate (509), and the sealing inner sleeve (508) is inserted into the lower end of the fixed cylinder (503).

2. The intelligent calibration device of an oil water content tester according to claim 1, characterized in that, The circulating component (1) includes a circulating pipe (101), two oil circuit interfaces (102) for adding and discharging the medium are connected to the circulating pipe (101), a circulating pump (103) and a flow meter (105) are connected to the circulating pipe (101), a stirring blade (104) located on one side of the circulating pump (103) is fixedly connected inside the circulating pipe (101), an on-line densitometer (106), a temperature sensor (107) and a pressure transmitter (109) are fixedly connected to the circulating pipe (101), and a temperature control sleeve (108) is installed on the circulating pipe (101).

3. The intelligent calibration device of an oil water content tester according to claim 2, characterized in that The driving component (4) includes a driving box (401) fixedly connected to the upper end of the variable container (201), a tooth surface (402) is fixedly connected to the rotating sleeve (301), and a motor (404) is fixedly connected to the upper side wall of the driving box (401).

4. The intelligent calibration device of an oil water content tester according to claim 3, characterized in that A gear (403) is rotatably connected to the upper end of the variable container (201), and the gear (403) meshes with the tooth surface (402), and the output end of the motor (404) is fixedly connected to the gear (403) through a transmission shaft (405).

5. The intelligent calibration device of an oil water content tester according to claim 4, characterized in that, The transmission component (6) includes an annular magnetic plate (601) fixedly connected to the upper end of the inner pipe (306), an electromagnet (602) magnetically attracted to the annular magnetic plate (601) is fixedly connected to the upper side wall of the driving box (401), and a first expansion capsule (603) is fixedly connected between the annular magnetic plate (601) and the driving box (401).

6. The intelligent calibration device of an oil water content tester according to claim 5, characterized in that, A circular plate (605) is fixedly connected to the upper side wall of the communicating cylinder (502) through two support rods (604), a sliding plate (606) is slidably connected between the two support rods (604), a closed outer sleeve (609) is fixedly connected to the lower side wall of the sliding plate (6)06), and the closed outer sleeve (609) is sleeved on the fixed cylinder (503), and a return spring (610) is fixedly connected between the sliding plate (606) and the fixed cylinder (503).

7. The intelligent calibration device of an oil water content tester according to claim 6, characterized in that, A second expansion capsule (607) is fixedly connected between the circular plate (605) and the sliding plate (606), and a transmission pipe (608) is connected between the first expansion capsule (60)3) and the second expansion capsule (607).

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