Calibration device and calibration method for microwave-method crude oil moisture meter

Abstract

The invention relates to the technical field of crude oil moisture meters, and discloses a microwave method crude oil moisture meter calibration device and method, the microwave method crude oil moisture meter calibration device comprises a rack and a storage cylinder, the rack is provided with a conveying belt, and the rack is also provided with a determination mechanism, a limiting mechanism and an output mechanism. According to the device, the storage cylinders loaded with crude oil with known water content can be sequentially conveyed, so that a worker can conveniently switch standard samples with high, medium and low water content, and the rapid change of the water content of different crude oil in different sections of a pipeline is simulated; the stability of the storage cylinder can be guaranteed, in addition, during detection, the temperature control module adjusts the temperature of the surrounding environment of the crude oil, the air pump feeds air into the storage cylinder, and the moisture content of the crude oil is detected in different pressure and temperature environments, so that the environment of an oil field site can be simulated, and the detection accuracy is further guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of crude oil moisture meter, and more particularly to a calibration device and a calibration method for a microwave crude oil moisture meter. Background Art

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

[0003] The microwave crude oil moisture meter needs to be calibrated before use. The current calibration method has many shortcomings: first, it relies on manual replacement of standard samples, which makes the calibration process inefficient and prone to introducing operational errors; second, it lacks the ability to simulate dynamic environments and cannot reproduce extreme working conditions such as high and low temperatures and high pressures at the oil field site, resulting in a disconnect between the calibration conditions and actual applications; third, the sample positioning stability is insufficient, and vibration or offset during testing can easily cause microwave signal coupling deviation; 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 a calibration method for a microwave crude oil moisture meter to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a calibration device for a microwave crude oil moisture meter, comprising a frame and a storage cylinder, a conveyor belt mounted on the frame, and a measuring mechanism, a limiting mechanism, and an output mechanism. The storage cylinder is used to load crude oil with a known moisture content, the conveyor belt is used to transport the storage cylinder, the measuring mechanism is used to detect the moisture 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, and the output mechanism is used to divide the detected storage cylinder into two groups and output them externally.

[0006] Preferably, the measuring mechanism includes a mounting frame, a cylinder, a closing cover and a guide 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 closing cover, an air pump is fixedly mounted on the top of the closing cover, and a microwave measuring instrument is also fixedly mounted on the closing cover.

[0007] Preferably, a transmission rod and a rotating rod are rotatably installed on the mounting frame, one end of the transmission rod is fixedly connected to a worm, the other end of the transmission rod is fixedly connected to a flat gear, the top of the rotating rod is fixedly connected to a worm wheel, the worm is meshingly connected to the worm wheel, a rack is fixedly installed on the top of the closing cover, the rack is meshingly connected to the flat gear, and a limiting frame 2 is fixedly installed on the surface of the rotating rod.

[0008] Preferably, the guide 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 closing cover via a fixed tube. A fixed block is fixedly connected to the inside of the fixed tube. A vent is provided on 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 via a reset spring. The blocking ball matches the vent.

[0009] Preferably, an extension ring is fixedly connected to the bottom of the closing 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 limiting frame 1, the motor is fixedly mounted on the mounting frame, the output end of the motor is fixedly connected to a rotating shaft, the support frame is fixedly mounted on the frame, a connecting shaft is rotatably mounted on the support frame, the surface of the connecting shaft is fixedly connected to a bevel gear 2, the surface of the rotating shaft is fixedly connected to a bevel gear 1, the bevel gear 1 is meshed with the bevel gear 2, and the limiting frame 1 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 No. 1 slide and a No. 2 slide, 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, and the bottom end of the central shaft extends to the bottom of the receiving frame.

[0012] Preferably, the bottom end of the central shaft is fixedly connected to bevel gear 1, a transmission rod is rotatably installed on the bottom of the supporting frame, one end of the transmission rod is fixedly connected to bevel gear 2, and bevel gear 2 is meshed with bevel gear 1, 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 of the microwave crude oil moisture meter calibration device comprises the following steps: S1. The conveyor belt sequentially transports the storage cylinders loaded with crude oil with a known water content. Under the guidance of the guide bars, the storage cylinders move to the area between the two guide bars.

[0015] S2. When the storage cylinder and the limit frame 1 collide with each other, the conveyor belt stops running, the cylinder output end extends vertically downward, and the closing cover and the rack as a whole also move vertically downward synchronously. During this process, the rack drives the transmission rod to rotate around its own axis through the flat gear, and the transmission rod rotates and drives the rotating rod to rotate synchronously around its own axis through the worm and worm gear. The rotating rod rotates and drives the limit frame 2 to rotate synchronously around the axis of the rotating rod, so that the limit frame 2 and the storage cylinder collide with each other, and the storage cylinder is positioned in the area between the limit frame 1 and the limit frame 2. The extension ring is then inserted vertically downward into the storage cylinder, and the closing cover closes the top of the storage cylinder.

[0016] S3. The microwave meter detects the water content of the crude oil in the storage cylinder. The temperature control module then changes the ambient temperature of the crude oil. The air pump delivers air into the storage cylinder, and the water content of the crude oil is tested again under different pressure and temperature conditions. After the test is completed, the output end of the cylinder shortens vertically upward, the sealing cap releases the seal on the storage cylinder and returns upward to its initial position, and the second limit frame also returns to its initial position.

[0017] S4. After the test, the motor drives the limit frame 1 to release the obstruction on 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 No. 2 slide, and the conveyor belt pulls the storage cylinder outward along the No. 1 slide. If the test result is different from the known moisture content, the motor drives the partition plate to rotate into the No. 1 slide, and the conveyor belt pulls the storage cylinder outward along the No. 2 slide.

[0018] The technical effects and advantages of the present invention are as follows: The present invention can sequentially transport storage cylinders loaded with crude oil with known water content, and detect the water content of the crude oil in the storage cylinders through a microwave measuring instrument. After the test, if the test result is the same as the known water content, it means that there is no problem with the microwave measuring instrument, and the storage cylinder is output outward along the No. 1 slide. If the test result is different from the known water content, it means that an error occurs in the detection of the microwave measuring instrument, and the storage cylinder is output outward along the No. 2 slide, which is convenient for the staff to switch between high, medium and low water content standard samples, simulating the rapid changes in the water content of different crude oils in different sections of the pipeline. In addition, during the detection process, the storage cylinder is positioned in the area between the limit frame 1 and the limit frame 2, which can ensure the stability of the storage cylinder. In addition, during the detection, the temperature control module adjusts the temperature of the environment surrounding the crude oil, and the air pump sends air into the storage cylinder. The water content of the crude oil is then tested under different pressure and temperature environments, thereby simulating the environment of the oil field site and further ensuring the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the measuring mechanism and the limiting mechanism of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the measuring mechanism of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the measuring mechanism of the present invention.

[0024] Figure 6 It is a schematic diagram of the closing cover structure of the present invention.

[0025] Figure 7 For the present invention Figure 4 A magnified view of the structure in Figure 2.

[0026] Figure 8 It is a schematic structural diagram of the limiting mechanism of the present invention.

[0027] Figure 9 It is a schematic diagram of the output mechanism structure of the present invention.

[0028] Figure 10 This is a diagram showing the coordination of the center shaft and transmission rod of the present invention.

[0029] The accompanying drawings are marked as follows: 1. rack; 2. storage cylinder; 21. temperature control module; 3. conveyor belt; 4. measuring mechanism; 41. mounting frame; 42. cylinder; 43. closing cover; 431. microwave measuring instrument; 432. extension ring; 433. sealing ring; 44. rack; 45. transmission rod; 451. worm; 452. flat gear; 46. rotating rod; 461. worm gear; 47. second limiting frame; 48. air pump; 49. flow guide assembly; 491. fixing pipe; 492. fixing block; 493 , blocking ball; 494, through-hole plate; 495, return spring; 5, limiting mechanism; 51, rotating shaft; 511, bevel gear one; 52, supporting frame; 53, connecting shaft; 531, bevel gear two; 54, motor; 55, limiting frame one; 6, output mechanism; 61, receiving frame; 61a, slideway one; 61b, slideway two; 62, partition plate; 63, center shaft; 631, bevel gear one; 64, transmission rod; 641, bevel gear two; 65, power transmission component; 7, guide bar. DETAILED DESCRIPTION

[0030] The technical solutions of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Furthermore, the various structural forms described in the following embodiments are merely illustrative. The calibration device and calibration method for a microwave-based crude oil moisture meter involved in the present invention are not limited to the various structures described in the following embodiments. All other embodiments obtained by persons of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0031] The present invention provides a calibration device for a microwave crude oil moisture meter, comprising a frame 1 and a storage cylinder 2. A conveyor belt 3 is mounted on the frame 1. The frame 1 is also provided 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 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, and the output mechanism 6 is used to divide the detected storage cylinder 2 into two groups and output them externally.

[0032] Furthermore, the measuring mechanism 4 includes a mounting frame 41, a cylinder 42, a closing cover 43 and a guide 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 closing cover 43, an air pump 48 is fixedly mounted on the top of the closing cover 43, a microwave measuring instrument 431 is also fixedly mounted on the closing 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 451 is connected, and the other end of the transmission rod 45 is fixedly connected to a flat gear 452. A worm gear 461 is fixedly connected to the top of the rotating rod 46. The worm 451 is meshed with the worm gear 461. A rack 44 is fixedly installed on the top of the closing cover 43. The rack 44 is meshed with the flat 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. Two guide bars 7 are symmetrically arranged. A temperature control module 21 is provided on the surface of the storage cylinder 2.

[0033] The guide 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 closing cover 43 via the fixed tube 491. A fixed block 492 is fixedly connected to the inside of the fixed tube 491. A vent is provided on 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 center of the bottom of the through-hole plate 494 and the top of the blocking ball 493 are fixedly connected by a reset spring 495. The blocking ball 493 matches the vent. The elasticity of the reset spring 495 is The 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 in the direction 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 closing cover 43, and a sealing ring 433 is provided on the surface of the extension ring 432. When the closing cover 43 closes the top of the storage cylinder 2, the extension ring 432 is inserted into the interior of the storage cylinder 2, and the sealing ring 433 can ensure the sealing of the closing cover 43.

[0034] When in use, the conveyor belt 3 sequentially conveys the storage cylinders 2 loaded with crude oil with a known water content. Under the guidance of the guide bars 7, the storage cylinders 2 move to the area between the two guide bars 7. When the storage barrel 2 and the limiting mechanism 5 conflict with each other, the conveyor belt 3 stops running, the output end of the cylinder 42 extends vertically downward, and the closing cover 43 and the rack 44 also move vertically downward synchronously as a whole. 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 synchronously around its own axis through the worm 451 and the worm gear 461. The rotating rod 46 rotates and drives the limiting frame 2 47 to rotate synchronously around the axis of the rotating rod 46, so that the limiting frame 2 47 conflicts with the storage barrel 2, and the extension ring 432 is vertically inserted downward into the storage barrel 2, and the closing cover 43 closes the top of the storage barrel 2.

[0035] The microwave measuring instrument 431 detects the water content of the crude oil in the storage cylinder 2. The temperature control module 21 then changes the ambient temperature of the crude oil. The air pump 48 delivers air into the storage cylinder 2, and the water content of the crude oil is again detected 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 upward to its initial position, and the second limit frame 47 also returns to its initial position.

[0036] Furthermore, the limiting mechanism 5 includes a support frame 52, a motor 54 and a limiting frame 1 55. The motor 54 is fixedly mounted on the mounting frame 41. The output end of the motor 54 is fixedly connected to the rotating shaft 51. The support frame 52 is fixedly mounted on the frame 1. The connecting shaft 53 is rotatably mounted on the support frame 52. The surface of the connecting shaft 53 is fixedly connected to the bevel gear 2 531. The surface of the rotating shaft 51 is fixedly connected to the bevel gear 1 511. The bevel gear 1 511 is meshed with the bevel gear 2 531. The limiting frame 1 55 is fixedly mounted on the surface of the rotating shaft 51.

[0037] During use, after detection, the motor 54 drives the rotating shaft 51 to rotate around its own axis, and the rotating shaft 51 rotates and drives the limiting frame 1 55 to rotate synchronously around the axis of the rotating shaft 51, and the limiting frame 1 55 releases the obstruction to the storage cylinder 2.

[0038] Furthermore, the output mechanism 6 includes a receiving frame 61 and a central shaft 63. The receiving frame 61 is provided with a No. 1 slide 61a and a No. 2 slide 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. The bottom end of the central shaft 63 is fixedly connected to a bevel gear 1 631. A transmission rod 64 is rotatably mounted on the bottom of the receiving frame 61. One end of the transmission rod 64 is fixedly connected to a bevel gear 2 641. The bevel gear 2 641 is meshed with the bevel gear 1 631. A power transmission member 65 for realizing power transmission between the other end of the transmission rod 64 and the connecting shaft 53 is provided. Preferably, the power transmission member 65 is a belt drive structure.

[0039] During 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 the bevel gear 1 511 and the bevel gear 2 531. The connecting shaft 53 rotates and drives the transmission rod 64 to rotate synchronously around its own axis through the power transmission member 65. The transmission rod 64 rotates and drives the central shaft 63 to rotate synchronously around its own axis through the bevel gear 2 641 and the 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 No. 2 slide 61b, and the conveyor belt 3 pulls the storage cylinder 2 along the No. 1 slide 61a to output it outward. If the test result is different from the known moisture content, similarly, the partition plate 62 rotates into the No. 1 slide 61a, and the conveyor belt 3 pulls the storage cylinder 2 along the No. 2 slide 61b to output it outward.

[0040] The working principle of the present invention is as follows: the conveyor belt 3 sequentially conveys the storage cylinders 2 loaded with crude oil with a known water content, and under the guidance of the guide bars 7 , the storage cylinders 2 move to the area between the two guide bars 7 .

[0041] When the storage barrel 2 and the limit frame 1 55 conflict with each other, the conveyor belt 3 stops running, the output end of the cylinder 42 extends vertically downward, and the closing cover 43 and the rack 44 also move vertically downward synchronously as a whole. 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 synchronously around its own axis through the worm 451 and the worm gear 461. The rotating rod 46 rotates and drives the limit frame 2 47 to rotate synchronously around the axis of the rotating rod 46, so that the limit frame 2 47 and the storage barrel 2 conflict with each other, and the storage barrel 2 is positioned in the area between the limit frame 1 55 and the limit frame 2 47. The extension ring 432 is inserted vertically downward into the storage barrel 2, and the closing cover 43 closes the top of the storage barrel 2.

[0042] The microwave measuring instrument 431 detects the water content of the crude oil in the storage cylinder 2. The temperature control module 21 then changes the ambient temperature of the crude oil. The air pump 48 delivers air into the storage cylinder 2, and the water content of the crude oil is again detected 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 upward to its initial position, and the second limit frame 47 also returns to its initial position.

[0043] 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 limit frame 1 55 to rotate synchronously around the axis of the rotating shaft 51, the limit frame 1 55 releases the 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 bevel gear 1 511 and the bevel gear 2 531, the connecting shaft 53 rotates and drives the transmission rod 64 to rotate synchronously around its own axis through the power transmission member 65, the transmission rod 64 rotates and drives the center shaft 63 to rotate synchronously around its own axis through the bevel gear 2 641 and the bevel gear 1 631, the center shaft 63 rotates and drives the partition plate 62 to rotate synchronously around the axis of the center shaft 63, the partition plate 62 rotates into the No. 2 slide 61b, and the conveyor belt 3 pulls the storage cylinder 2 along the No. 1 slide 61a to output outward.

[0044] If the detection 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.

[0045] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change. Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict. Finally: 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 in the scope of protection of the present invention.

Claims

1. A microwave crude oil moisture meter calibration device, comprising a frame (1) and a storage cylinder (2), characterized in that: A conveyor belt (3) is installed on the frame (1), and a measuring mechanism (4), a limiting mechanism (5) and an output mechanism (6) are also provided on the frame (1). 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 to the outside.

2. The microwave crude oil moisture meter calibration device according to claim 1, characterized in that: The measuring mechanism (4) comprises a mounting frame (41), a cylinder (42), a closing cover (43) and a flow guide assembly (49), wherein 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 closing cover (43), an air pump (48) is fixedly mounted on the top of the closing cover (43), and a microwave measuring instrument (431) is also fixedly mounted on the closing cover (43).

3. A microwave crude oil moisture meter calibration device according to claim 2, characterized in that: A transmission rod (45) and a rotating rod (46) are rotatably mounted on the mounting frame (41); one end of the transmission rod (45) is fixedly connected to a worm (451); the other end of the transmission rod (45) is fixedly connected to a flat gear (452); the top of the rotating rod (46) is fixedly connected to a worm gear (461); the worm (451) and the worm gear (461) are meshedly connected; a rack (44) is fixedly mounted on the top of the closing cover (43); the rack (44) and the flat gear (452) are meshedly connected; a second limiting frame (47) is fixedly mounted on the surface of the rotating rod (46).

4. A microwave crude oil moisture meter calibration device according to claim 3, characterized in that: The flow guide 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 closing cover (43) via the fixed tube (491). A fixed block (492) is fixedly connected inside the fixed tube (491). 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 reset spring (495). The blocking ball (493) matches the vent hole.

5. The microwave crude oil moisture meter calibration device according to claim 4, characterized in that: An extension ring (432) is fixedly connected to the bottom of the closing cover (43), and a sealing ring (433) is provided on the surface of the extension ring (432).

6. A microwave crude oil moisture meter calibration device according to claim 5, characterized in that: The limiting mechanism (5) comprises a support frame (52), a motor (54) and a limiting frame 1 (55), wherein the motor (54) is fixedly mounted on the mounting frame (41), an output end of the motor (54) is fixedly connected to a rotating shaft (51), the support frame (52) is fixedly mounted on the frame (1), a connecting shaft (53) is rotatably mounted on the support frame (52), a surface of the connecting shaft (53) is fixedly connected to a second helical gear (531), a surface of the rotating shaft (51) is fixedly connected to a first helical gear (511), the first helical gear (511) is meshed with the second helical gear (531), and the limiting frame 1 (55) is fixedly mounted on the surface of the rotating shaft (51).

7. A microwave crude oil moisture meter calibration device according to claim 6, characterized in that: The output mechanism (6) includes a receiving frame (61) and a central shaft (63), wherein a first slideway (61a) and a second slideway (61b) are provided on the receiving frame (61), and 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 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).

8. The microwave crude oil moisture meter calibration device according to claim 7, characterized in that: The bottom end of the central shaft (63) is fixedly connected to a bevel gear 1 (631), and a transmission rod (64) is rotatably mounted on the bottom of the receiving frame (61). One end of the transmission rod (64) is fixedly connected to a bevel gear 2 (641), and the bevel gear 2 (641) is meshedly connected with the bevel gear 1 (631). A power transmission member (65) is provided between the other end of the transmission rod (64) and the connecting shaft (53).

9. A microwave crude oil moisture meter calibration device according to claim 8, characterized in that: A guide bar (7) is fixedly mounted on the top of the frame (1), and two guide bars (7) are symmetrically arranged. A temperature control module (21) is arranged on the surface of the storage cylinder (2).

10. A calibration method for the microwave crude oil moisture meter calibration device according to claim 9, characterized in that: The following steps are involved: S1. The conveyor belt (3) sequentially conveys the storage cylinder (2) loaded with crude oil with a known water content. Under the guidance of the guide bar (7), the storage cylinder (2) moves to the area between the two guide bars (7); S2. When the storage barrel (2) and the limiting frame (55) collide with each other, the conveyor belt (3) stops running, the output end of the cylinder (42) extends vertically downward, and the closing cover (43) and the rack (44) also move vertically downward synchronously as a whole. 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 synchronously around its own axis through the worm (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) and the storage barrel (2) collide with each other, and the storage barrel (2) is positioned in the area between the limiting frame (55) and the limiting frame (47). The extension ring (432) is vertically inserted into the storage barrel (2), and the closing cover (43) closes the top of the storage barrel (2); S3. The microwave measuring instrument (431) detects the water content of the crude oil in the storage cylinder (2), and then the temperature control module (21) changes the ambient temperature of the crude oil. The air pump (48) sends air into the storage cylinder (2), and the water content of the crude oil is detected under different pressure and temperature conditions. After the detection is completed, the output end of the cylinder (42) is shortened vertically upward, the closing cover (43) releases the seal on the storage cylinder (2) and returns to the initial position upward, and the second limit frame (47) also returns to the initial position; S4. After the test, the motor (54) drives the limiting frame 1 (55) to release the obstruction of the storage tube (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 tube (2) along the first slide (61a) to be output outward. 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 tube (2) along the second slide (61b) to be output outward.

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