A microwave method crude oil moisture tester calibration device and calibration method

Abstract

The present application relates to crude oil moisture tester technical field, and disclose a kind of microwave method crude oil moisture tester calibration device and calibration method, including rack and storage cylinder, the rack is equipped with conveyor belt, the rack is also provided with measuring mechanism, limiting mechanism and output mechanism.The present application can be loaded with known moisture content crude oil storage cylinder in turn is transported, it is convenient for staff to switch high, medium, low moisture content standard sample, simulate the different section of pipeline different crude oil moisture content rapid change, in addition, during detection, storage cylinder is positioned in the region between limiting frame one and limiting frame two, can guarantee the stability of storage cylinder, in addition, when detecting, temperature control module adjusts the temperature of the environment around crude oil, air pump sends air into storage cylinder, detects the moisture content of crude oil again under different pressure temperature environment, so as to simulate the environment of oilfield site, further guarantee the accuracy of detection.

Description

Technical Field

[0001] This invention relates to the field of crude oil moisture analyzers, and more specifically to a calibration device and calibration method for a microwave crude oil moisture analyzer. Background Technology

[0002] The microwave crude oil moisture analyzer is an online detection device based on the principle of microwave signal attenuation and phase change. It achieves accurate water content analysis by measuring the differences in the dielectric properties of crude oil (the high dielectric constant of water and the loss tangent).

[0003] Before use, the microwave crude oil moisture analyzer needs to be calibrated. The current calibration method has many shortcomings: First, it relies on manual replacement of standard samples, which is inefficient and prone to operational errors. Second, it lacks dynamic environment simulation capabilities and cannot reproduce extreme working conditions such as high and low temperatures and high pressures in oilfields, resulting in a disconnect between calibration conditions and actual applications. Third, the sample positioning stability is insufficient, and vibration or displacement during testing can easily cause microwave signal coupling deviations. Fourth, error statistics rely on manual recording and lack automated sorting and probability analysis mechanisms, making it difficult to quantify the long-term reliability of the instrument. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a calibration device and calibration method for a microwave crude oil moisture analyzer, so as to solve the problems existing in the background art.

[0005] This invention provides the following technical solution: a calibration device for a microwave crude oil moisture analyzer, comprising a frame and a storage cylinder. A conveyor belt is installed on the frame, and a measuring mechanism, a limiting mechanism, and an output mechanism are also provided on the frame. The storage cylinder is used to load crude oil with a known water content. The conveyor belt is used to transport the storage cylinder. The measuring mechanism is used to detect the water content of the crude oil in the storage cylinder. The limiting mechanism is used to cooperate with the measuring mechanism to limit the storage cylinder during the detection process. The output mechanism is used to divide the detected storage cylinder into two groups and output them outwards.

[0006] Preferably, the measuring mechanism includes a mounting frame, a cylinder, a sealing cover, and a flow guiding assembly. The mounting frame is fixedly mounted on the frame, the cylinder is fixedly mounted on the mounting frame, the output end of the cylinder is fixedly connected to the top of the sealing cover, an air pump is fixedly mounted on the top of the sealing cover, and a microwave measuring instrument is also fixedly mounted on the sealing cover.

[0007] Preferably, a transmission rod and a rotating rod are rotatably mounted on the mounting frame. A worm gear is fixedly connected to one end of the transmission rod, and a spur gear is fixedly connected to the other end of the transmission rod. A worm wheel is fixedly connected to the top of the rotating rod, and the worm gear and the worm wheel are meshed together. A rack is fixedly mounted on the top of the sealing cover, and the rack is meshed with the spur gear. A limit bracket is fixedly mounted on the surface of the rotating rod.

[0008] Preferably, the flow guiding assembly includes a fixed tube, a blocking ball, and a through-hole plate. The air pump output end is fixedly connected to the top of the sealing cover through the fixed tube. A fixed block is fixedly connected inside the fixed tube. A vent hole is opened through the fixed block. The surface of the through-hole plate is fixedly connected to the inner wall of the fixed tube. The bottom center of the through-hole plate and the top of the blocking ball are fixedly connected through a return spring. The blocking ball matches the vent hole.

[0009] Preferably, an extension ring is fixedly connected to the bottom of the sealing cover, and a sealing ring is provided on the surface of the extension ring.

[0010] Preferably, the limiting mechanism includes a support frame, a motor, and a first limiting frame. The motor is fixedly mounted on the mounting frame, and a rotating shaft is fixedly connected to the output end of the motor. The support frame is fixedly mounted on the machine frame, and a connecting shaft is rotatably mounted on the support frame. A second helical gear is fixedly connected to the surface of the connecting shaft, and a first helical gear is fixedly connected to the surface of the rotating shaft. The first helical gear and the second helical gear are meshed together, and the first limiting frame is fixedly mounted on the surface of the rotating shaft.

[0011] Preferably, the output mechanism includes a receiving frame and a central shaft. The receiving frame is provided with a first slide rail and a second slide rail. The central shaft is rotatably mounted on the receiving frame. A partition plate is provided on the top of the receiving frame. The partition plate is fixedly mounted on the surface of the central shaft. The bottom end of the central shaft extends to the bottom of the receiving frame.

[0012] Preferably, a bevel gear one is fixedly connected to the bottom end of the central shaft, a transmission rod is rotatably mounted on the bottom of the receiving frame, a bevel gear two is fixedly connected to one end of the transmission rod, the bevel gear two meshes with the bevel gear one, and a power transmission component is provided between the other end of the transmission rod and the connecting shaft.

[0013] Preferably, a guide bar is fixedly installed on the top of the frame, and two guide bars are symmetrically arranged. A temperature control module is provided on the surface of the storage cylinder.

[0014] The calibration method for a microwave crude oil moisture analyzer calibration device includes the following steps:

[0015] S1. The conveyor belt sequentially transports storage cylinders loaded with crude oil of known water content. Under the guidance of the guide bars, the storage cylinders move to the area between two guide bars.

[0016] S2. When the storage cylinder and the first limiting frame come into contact with each other, the conveyor belt stops running, the cylinder output end extends vertically downward, and the sealing cover and rack also move vertically downward synchronously. During this process, the rack drives the transmission rod to rotate around its own axis through the flat gear. The transmission rod rotates and drives the rotating rod to rotate synchronously around its own axis through the worm and worm wheel. The rotating rod rotates and drives the second limiting frame to rotate synchronously around the axis of the rotating rod, so that the second limiting frame and the storage cylinder come into contact with each other. The storage cylinder is positioned in the area between the first limiting frame and the second limiting frame. The extension ring is inserted vertically downward into the storage cylinder, and the sealing cover seals the top of the storage cylinder.

[0017] S3. The microwave measuring instrument detects the water content of crude oil in the storage cylinder. Then, the temperature control module changes the ambient temperature around the crude oil. The air pump sends air into the storage cylinder. The water content of the crude oil is detected again under different pressure and temperature conditions. After the detection is completed, the cylinder output end shortens vertically upward, the sealing cover releases the seal on the storage cylinder and returns to the initial position, and the limit frame two also returns to the initial position.

[0018] S4. After the test, the motor drives the limit frame to release the obstruction of the storage cylinder. If the test result is the same as the known moisture content, the motor drives the partition plate to rotate into the second slide, and the conveyor belt pulls the storage cylinder outward along the first slide. If the test result is different from the known moisture content, the motor drives the partition plate to rotate into the first slide, and the conveyor belt pulls the storage cylinder outward along the second slide.

[0019] The technical effects and advantages of this invention are as follows:

[0020] This invention sequentially transports storage cylinders containing crude oil with a known water content. A microwave measuring instrument detects the water content of the crude oil within the cylinders. If the detection result matches the known water content, the microwave measuring instrument is functioning correctly, and the storage cylinder is discharged along slide number one. If the detection result differs from the known water content, an error has occurred in the microwave measuring instrument, and the storage cylinder is discharged along slide number two. This allows for easy switching between high, medium, and low water content standard samples, simulating rapid changes in the water content of different crude oils in different sections of the pipeline. Furthermore, during the detection process, the storage cylinder is positioned between limit frames one and two, ensuring its stability. Additionally, a temperature control module adjusts the temperature of the surrounding environment during detection, and an air pump supplies air into the storage cylinder. Detecting the water content of the crude oil under different pressure and temperature conditions simulates the environment of an oilfield, further ensuring the accuracy of the detection. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the measuring mechanism and limiting mechanism of the present invention.

[0024] Figure 4 This is a schematic diagram of the measuring mechanism of the present invention.

[0025] Figure 5 This is a schematic diagram of the measuring mechanism of the present invention.

[0026] Figure 6 This is a schematic diagram of the closed cover structure of the present invention.

[0027] Figure 7 For the present invention Figure 4 Enlarged view of the structure at point A in the image.

[0028] Figure 8 This is a schematic diagram of the limiting mechanism structure of the present invention.

[0029] Figure 9 This is a schematic diagram of the output mechanism structure of the present invention.

[0030] Figure 10 This is a diagram showing the fit between the central shaft and the transmission rod of the present invention.

[0031] The attached figures are labeled as follows: 1. Frame; 2. Storage cylinder; 21. Temperature control module; 3. Conveyor belt; 4. Measuring mechanism; 41. Mounting frame; 42. Cylinder; 43. Sealing cover; 431. Microwave measuring instrument; 432. Extension ring; 433. Sealing ring; 44. Rack; 45. Transmission rod; 451. Worm gear; 452. Flat gear; 46. Rotating rod; 461. Worm wheel; 47. Limiting frame two; 48. Air pump; 49. Flow guiding assembly; 491. Fixing pipe; 492. Fixing block; 493. 494. Blocking ball; 495. Through-hole plate; 496. Return spring; 5. Limiting mechanism; 51. Rotating shaft; 511. Helical gear one; 52. Support frame; 53. Connecting shaft; 531. Helical gear two; 54. Motor; 55. Limiting frame one; 6. Output mechanism; 61. Receiving frame; 61a. Slide rail one; 61b. Slide rail two; 62. Divider plate; 63. Central shaft; 631. Bevel gear one; 64. Transmission rod; 641. Bevel gear two; 65. Power transmission component; 7. Guide bar. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The microwave crude oil moisture analyzer calibration device and calibration method involved in the present invention are not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This invention provides a calibration device for a microwave crude oil moisture analyzer, comprising a frame 1 and a storage cylinder 2. A conveyor belt 3 is mounted on the frame 1, which is also equipped with a measuring mechanism 4, a limiting mechanism 5, and an output mechanism 6. The storage cylinder 2 is used to load crude oil, the conveyor belt 3 is used to transport the storage cylinder 2, the measuring mechanism 4 is used to detect the moisture content of the crude oil in the storage cylinder 2, the limiting mechanism 5 is used to limit the storage cylinder 2 during the detection process in conjunction with the measuring mechanism 4, and the output mechanism 6 is used to divide the detected storage cylinder 2 into two groups and output them outwards.

[0034] Furthermore, the measuring mechanism 4 includes a mounting frame 41, a cylinder 42, a sealing cover 43, and a flow guiding assembly 49. The mounting frame 41 is fixedly mounted on the frame 1, and the cylinder 42 is fixedly mounted on the mounting frame 41. The output end of the cylinder 42 is fixedly connected to the top of the sealing cover 43. An air pump 48 is fixedly mounted on the top of the sealing cover 43, and a microwave measuring instrument 431 is also fixedly mounted on the sealing cover 43. A transmission rod 45 and a rotating rod 46 are rotatably mounted on the mounting frame 41, and one end of the transmission rod 45 is fixed. A worm gear 451 is connected to the top of the transmission rod 45, and a spur gear 452 is fixedly connected to the other end of the transmission rod 45. A worm wheel 461 is fixedly connected to the top of the rotating rod 46, and the worm gear 451 and the worm wheel 461 are meshed together. A rack 44 is fixedly installed on the top of the closed cover 43, and the rack 44 is meshed with the spur gear 452. A limit frame 47 is fixedly installed on the surface of the rotating rod 46. A guide bar 7 is fixedly installed on the top of the frame 1, and two guide bars 7 are symmetrically arranged. A temperature control module 21 is provided on the surface of the storage cylinder 2.

[0035] The flow guiding assembly 49 includes a fixed tube 491, a blocking ball 493, and a through-hole plate 494. The output end of the air pump 48 is fixedly connected to the top of the sealing cover 43 via the fixed tube 491. A fixed block 492 is fixedly connected inside the fixed tube 491, and a vent hole is formed through the fixed block 492. The surface of the through-hole plate 494 is fixedly connected to the inner wall of the fixed tube 491. The bottom center of the through-hole plate 494 and the top of the blocking ball 493 are fixedly connected via a return spring 495. The blocking ball 493 matches the vent hole, and the return spring 495 has a spring-loaded spring. Force drives the blocking ball 493 to block the vent. When the air pump 48 is turned on, under the action of gas pressure, the blocking ball 493 moves away from the through-hole plate 494. The return spring 495 is stretched and the elastic force increases, and the blocking ball 493 releases the blockage of the vent. An extension ring 432 is fixedly connected to the bottom of the sealing cover 43. A sealing ring 433 is provided on the surface of the extension ring 432. When the sealing cover 43 closes the top of the storage cylinder 2, the extension ring 432 is inserted into the storage cylinder 2. The sealing ring 433 can ensure the sealing performance of the sealing cover 43.

[0036] In use, the conveyor belt 3 sequentially transports the storage cylinder 2 loaded with crude oil of known water content. Under the guidance of the guide strips 7, the storage cylinder 2 moves to the area between the two guide strips 7.

[0037] When the storage cylinder 2 comes into contact with the limiting mechanism 5, the conveyor belt 3 stops running, the output end of the cylinder 42 extends vertically downward, and the sealing cover 43 and the rack 44 also move vertically downward synchronously. During this process, the rack 44 drives the transmission rod 45 to rotate around its own axis through the flat gear 452. The rotation of the transmission rod 45 drives the rotating rod 46 to rotate synchronously around its own axis through the worm gear 451 and the worm wheel 461. The rotating rod 46 rotates and drives the limiting frame 47 to rotate synchronously around the axis of the rotating rod 46, so that the limiting frame 47 comes into contact with the storage cylinder 2. The extension ring 432 is inserted vertically downward into the storage cylinder 2, and the sealing cover 43 seals the top of the storage cylinder 2.

[0038] The microwave measuring instrument 431 detects the water content of the crude oil in the storage cylinder 2. Then, the temperature control module 21 changes the ambient temperature around the crude oil. The air pump 48 sends air into the storage cylinder 2. The water content of the crude oil is detected again under different pressure and temperature conditions. After the detection is completed, the output end of the cylinder 42 shortens vertically upward, the sealing cover 43 releases the seal on the storage cylinder 2 and returns to the initial position upward. The limit frame 47 also returns to the initial position.

[0039] Furthermore, the limiting mechanism 5 includes a support frame 52, a motor 54, and a limiting frame 55. The motor 54 is fixedly mounted on the mounting frame 41, and a rotating shaft 51 is fixedly connected to the output end of the motor 54. The support frame 52 is fixedly mounted on the frame 1, and a connecting shaft 53 is rotatably mounted on the support frame 52. A helical gear 531 is fixedly connected to the surface of the connecting shaft 53, and a helical gear 511 is fixedly connected to the surface of the rotating shaft 51. The helical gear 511 meshes with the helical gear 531, and the limiting frame 55 is fixedly mounted on the surface of the rotating shaft 51.

[0040] During use, after testing, the motor 54 drives the rotating shaft 51 to rotate around its own axis. The rotating shaft 51 rotates and drives the limit frame 55 to rotate synchronously around the axis of the rotating shaft 51. The limit frame 55 releases its obstruction to the storage cylinder 2.

[0041] Furthermore, the output mechanism 6 includes a receiving frame 61 and a central shaft 63. The receiving frame 61 is provided with a first slide rail 61a and a second slide rail 61b. The central shaft 63 is rotatably mounted on the receiving frame 61. A partition plate 62 is provided on the top of the receiving frame 61 and is fixedly mounted on the surface of the central shaft 63. The bottom end of the central shaft 63 extends to the bottom of the receiving frame 61. A bevel gear 631 is fixedly connected to the bottom end of the central shaft 63. A transmission rod 64 is rotatably mounted on the bottom of the receiving frame 61. A bevel gear 641 is fixedly connected to one end of the transmission rod 64 and meshes with the bevel gear 631. A power transmission component 65 is provided between the other end of the transmission rod 64 and the connecting shaft 53 to realize the power transmission between the two. Preferably, the power transmission component 65 is a belt drive structure.

[0042] In use, if the test result is the same as the known moisture content, the rotating shaft 51 rotates and drives the connecting shaft 53 to rotate around its own axis through helical gear 1 511 and helical gear 2 531. The rotating shaft 53 drives the transmission rod 64 to rotate synchronously around its own axis through the power transmission component 65. The transmission rod 64 rotates and drives the central shaft 63 to rotate synchronously around its own axis through bevel gear 2 641 and bevel gear 1 631. The central shaft 63 rotates and drives the partition plate 62 to rotate synchronously around the axis of the central shaft 63. The partition plate 62 rotates into the second slide 61b, and the conveyor belt 3 pulls the storage cylinder 2 outward along the first slide 61a. If the test result is different from the known moisture content, similarly, the partition plate 62 rotates into the first slide 61a, and the conveyor belt 3 pulls the storage cylinder 2 outward along the second slide 61b.

[0043] The working principle of this invention is as follows: the conveyor belt 3 sequentially transports the storage cylinder 2 loaded with crude oil of known water content. Under the guidance of the guide strip 7, the storage cylinder 2 moves to the area between the two guide strips 7.

[0044] When the storage cylinder 2 comes into contact with the first limiting frame 55, the conveyor belt 3 stops running, the output end of the cylinder 42 extends vertically downward, and the sealing cover 43 and the rack 44 also move vertically downward synchronously. During this process, the rack 44 drives the transmission rod 45 to rotate around its own axis through the flat gear 452. The rotation of the transmission rod 45 drives the rotating rod 46 to rotate synchronously around its own axis through the worm gear 451 and the worm wheel 461. The rotating rod 46 rotates and drives the second limiting frame 47 to rotate synchronously around the axis of the rotating rod 46, so that the second limiting frame 47 comes into contact with the storage cylinder 2. The storage cylinder 2 is positioned in the area between the first limiting frame 55 and the second limiting frame 47. The extension ring 432 is inserted vertically downward into the storage cylinder 2, and the sealing cover 43 seals the top of the storage cylinder 2.

[0045] The microwave measuring instrument 431 detects the water content of the crude oil in the storage cylinder 2. Then, the temperature control module 21 changes the ambient temperature around the crude oil. The air pump 48 sends air into the storage cylinder 2. The water content of the crude oil is detected again under different pressure and temperature conditions. After the detection is completed, the output end of the cylinder 42 shortens vertically upward, the sealing cover 43 releases the seal on the storage cylinder 2 and returns to the initial position upward. The limit frame 47 also returns to the initial position.

[0046] After testing, if the test result is the same as the known moisture content, the motor 54 drives the rotating shaft 51 to rotate around its own axis. The rotating shaft 51 rotates and drives the limiting frame 55 to rotate synchronously around the axis of the rotating shaft 51. The limiting frame 55 releases its obstruction to the storage cylinder 2. The rotating shaft 51 rotates and drives the connecting shaft 53 to rotate synchronously around its own axis through the helical gear 511 and the helical gear 531. The connecting shaft 53 rotates and drives the transmission rod 64 to rotate synchronously around its own axis through the power transmission component 65. The transmission rod 64 rotates and drives the central shaft 63 to rotate synchronously around its own axis through the bevel gear 641 and the bevel gear 631. The central shaft 63 rotates and drives the partition plate 62 to rotate synchronously around the axis of the central shaft 63. The partition plate 62 rotates into the second slide 61b, and the conveyor belt 3 pulls the storage cylinder 2 outward along the first slide 61a.

[0047] If the test result is different from the known moisture content, similarly, the partition plate 62 rotates into the first slide 61a, and the conveyor belt 3 pulls the storage cylinder 2 outward along the second slide 61b.

[0048] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0049] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0050] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A calibration device for a microwave crude oil moisture analyzer, comprising a frame (1) and a storage cylinder (2), characterized in that, The frame (1) is equipped with a conveyor belt (3), and the frame (1) is also equipped with a measuring mechanism (4), a limiting mechanism (5) and an output mechanism (6). The storage cylinder (2) is used to load crude oil with a known water content. The conveyor belt (3) is used to transport the storage cylinder (2). The measuring mechanism (4) is used to detect the water content of the crude oil in the storage cylinder (2). The limiting mechanism (5) is used to cooperate with the measuring mechanism (4) to limit the storage cylinder (2) during the detection process. The output mechanism (6) is used to divide the detected storage cylinder (2) into two groups and output them outward. The measuring mechanism (4) includes a mounting frame (41), a cylinder (42), a sealing cover (43), and a flow guiding assembly (49). The mounting frame (41) is fixedly mounted on the frame (1), the cylinder (42) is fixedly mounted on the mounting frame (41), the output end of the cylinder (42) is fixedly connected to the top of the sealing cover (43), an air pump (48) is fixedly mounted on the top of the sealing cover (43), and a microwave measuring instrument (431) is also fixedly mounted on the sealing cover (43). A transmission rod (45) and a rotating rod (46) are rotatably mounted on the mounting bracket (41). One end of the transmission rod (45) is fixedly connected to a worm gear (451), and the other end of the transmission rod (45) is fixedly connected to a spur gear (452). The top end of the rotating rod (46) is fixedly connected to a worm wheel (461). The worm gear (451) and the worm wheel (461) are meshed together. A rack (44) is fixedly mounted on the top of the sealing cover (43). The rack (44) and the spur gear (452) are meshed together. A limit bracket (47) is fixedly mounted on the surface of the rotating rod (46). The top of the frame (1) is fixedly installed with guide bars (7), and two guide bars (7) are symmetrically arranged. The surface of the storage cylinder (2) is provided with a temperature control module (21).

2. The calibration device for a microwave crude oil moisture analyzer according to claim 1, characterized in that, The flow guiding assembly (49) includes a fixed tube (491), a blocking ball (493), and a through-hole plate (494). The output end of the air pump (48) is fixedly connected to the top of the sealing cover (43) through the fixed tube (491). A fixed block (492) is fixedly connected inside the fixed tube (491). A vent hole is opened through the fixed block (492). The surface of the through-hole plate (494) is fixedly connected to the inner wall of the fixed tube (491). The bottom center of the through-hole plate (494) and the top of the blocking ball (493) are fixedly connected through a return spring (495). The blocking ball (493) matches the vent hole.

3. The calibration device for a microwave crude oil moisture analyzer according to claim 2, characterized in that, The bottom of the closed cover (43) is fixedly connected to an extension ring (432), and a sealing ring (433) is provided on the surface of the extension ring (432).

4. The calibration device for a microwave crude oil moisture analyzer according to claim 3, characterized in that, The limiting mechanism (5) includes a support frame (52), a motor (54) and a limiting frame (55). The motor (54) is fixedly installed on the mounting frame (41). The output end of the motor (54) is fixedly connected to a rotating shaft (51). The support frame (52) is fixedly installed on the frame (1). A connecting shaft (53) is rotatably installed on the support frame (52). A helical gear (531) is fixedly connected to the surface of the connecting shaft (53). A helical gear (511) is fixedly connected to the surface of the rotating shaft (51). The helical gear (511) meshes with the helical gear (531). The limiting frame (55) is fixedly installed on the surface of the rotating shaft (51).

5. The calibration device for a microwave crude oil moisture analyzer according to claim 4, characterized in that, The output mechanism (6) includes a receiving frame (61) and a central shaft (63). The receiving frame (61) is provided with a first slide rail (61a) and a second slide rail (61b). The central shaft (63) is rotatably mounted on the receiving frame (61). A partition plate (62) is provided on the top of the receiving frame (61). The partition plate (62) is fixedly mounted on the surface of the central shaft (63). The bottom end of the central shaft (63) extends to the bottom of the receiving frame (61).

6. The calibration device for a microwave crude oil moisture analyzer according to claim 5, characterized in that, The bottom end of the central shaft (63) is fixedly connected to a bevel gear one (631), and a transmission rod (64) is rotatably installed at the bottom of the support frame (61). One end of the transmission rod (64) is fixedly connected to a bevel gear two (641), and the bevel gear two (641) meshes with the bevel gear one (631). The other end of the transmission rod (64) is provided with a power transmission component (65) between it and the connecting shaft (53).

7. A calibration method for a microwave crude oil moisture analyzer calibration device as described in claim 6, characterized in that, Includes the following steps: S1. The conveyor belt (3) sequentially transports the storage cylinder (2) loaded with crude oil of known water content. Under the guidance of the guide strip (7), the storage cylinder (2) moves to the area between the two guide strips (7). S2. When the storage cylinder (2) comes into contact with the first limiting frame (55), the conveyor belt (3) stops running, the output end of the cylinder (42) extends vertically downward, and the entire closed cover (43) and rack (44) move vertically downward synchronously. During this process, the rack (44) drives the transmission rod (45) to rotate around its own axis through the flat gear (452). The transmission rod (45) rotates and drives the rotating rod (46) to rotate around its own axis synchronously through the worm (451) and worm wheel (461). The rotating rod (46) rotates and drives the second limiting frame (47) to rotate around the axis of the rotating rod (46) synchronously, so that the second limiting frame (47) comes into contact with the storage cylinder (2). The storage cylinder (2) is positioned in the area between the first limiting frame (55) and the second limiting frame (47). The extension ring (432) is inserted vertically downward into the storage cylinder (2), and the closed cover (43) closes the top of the storage cylinder (2). S3. The microwave measuring instrument (431) detects the water content of crude oil in the storage cylinder (2). Then the temperature control module (21) changes the ambient temperature around the crude oil. The air pump (48) sends air into the storage cylinder (2). The water content of the crude oil is detected again under different pressure and temperature conditions. After the detection is completed, the output end of the cylinder (42) shortens vertically upward. The sealing cover (43) releases the sealing of the storage cylinder (2) and returns to the initial position upward. The second limit frame (47) also returns to the initial position. S4. After the test, the motor (54) drives the limit frame one (55) to release the obstruction of the storage cylinder (2). If the test result is the same as the known moisture content, the motor (54) drives the partition plate (62) to rotate into the second slide (61b), and the conveyor belt (3) pulls the storage cylinder (2) outward along the first slide (61a). If the test result is different from the known moisture content, the motor (54) drives the partition plate (62) to rotate into the first slide (61a), and the conveyor belt (3) pulls the storage cylinder (2) outward along the second slide (61b).

Images