A turbine oil system for preventing emulsification and controlling oil online

Abstract

The invention discloses an online oil control system for preventing emulsification of a turbine oil, comprising a pipeline, a sampling tube is arranged above the pipeline, a detection box is fixedly connected to one side of the sampling tube, the oil entering the detection box through the oil outlet pipe enters a rotating drum through the guidance of a guide platform, a first motor drives the rotating drum to rotate, and the rotating drum causes the oil inside thereof to slosh, the output shaft of the third motor rotates to drive the second screw to rotate and then drives the movable plate to move, so that the movable plate drives the detection head to move through the movable rod, the detection head extends out through a limit ring and a second annular rack and contacts the oil in the rotating drum for detection, then, the feed chute is opened to discharge the oil to the three-way valve through the feed chute and the discharge hopper, the three-way valve is controlled to cause the oil to flow back into the pipeline through the oil discharge pipe, so as to realize online monitoring of the oil in the pipeline, facilitate monitoring of the contamination degree of the oil, realize active maintenance, and prevent emulsification.

Description

Technical Field

[0001] The invention relates to the field of steam turbine oil systems, and in particular to a steam turbine oil system capable of preventing emulsification and controlling oil online. Background Art

[0002] Turbine oil, also known as turbine oil, usually includes steam turbine oil, gas turbine oil, hydraulic turbine oil and anti-oxidation turbine oil, etc. It is mainly used for lubrication of sliding bearings, reduction gears, speed governors and hydraulic control systems of turbine oil and related linkage units. The main functions of turbine oil are lubrication, cooling and speed regulation. Wear and poor lubrication are the main causes of damage or failure of machinery and equipment. The oil monitoring technology developed in the past decade can solve this problem well. Especially in recent years, oil monitoring technology has developed rapidly in various industries. The initial oil monitoring was only oil contamination analysis, mainly analyzing the physical and chemical indicators of oil products, such as viscosity, moisture, acid value, flash point, mechanical impurities, etc. The performance index determination method of petroleum products is usually used to test the lubricant in use to evaluate its quality changes. The development of industrialized production has made machines more and more large-scale, complex and continuous, and the maintenance requirements for machines are also getting higher and higher.

[0003] The present application is an improvement on the prior art. In the prior art, the existing online oil control turbine oil system usually uses professional testing instruments to test the oil in the oil circuit of the turbine oil system at intervals. This method requires multiple manual tests and the installation and disassembly of the testing instruments, which is inconvenient to use and has low efficiency. Secondly, manual testing cannot timely obtain the oil status and cannot effectively maintain to prevent emulsification. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a turbine oil system for preventing emulsification and controlling oil online.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A turbine oil system for preventing emulsification and controlling oil online comprises a pipeline, a sampling tube is arranged above the pipeline, one side of the sampling tube is fixedly connected to a detection box, the bottoms of the sampling tube and the detection box are fixedly connected to a support frame, and the support frame is fixedly connected to the pipeline, the bottom of the sampling tube is fixedly connected to an oil inlet pipe, and the oil inlet pipe is connected to the inside of the pipeline, an oil outlet is opened on the side of the sampling tube close to the detection box, the inner wall of the oil outlet is fixedly connected to the oil outlet pipe, the inner wall of the detection box is fixedly connected to a guide platform, the bottom of the guide platform is rotatably connected to a rotating drum, and the bottom of the rotating drum is fixedly connected There is a swivel, and the swivel is rotatably connected to the bottom inner wall of the detection box, the top inner wall of the detection box is fixedly connected to a fixed sleeve, a second screw and a vertical rod are arranged in the fixed sleeve, the second screw and the vertical rod are symmetrically distributed, the second screw is rotatably connected to the detection box, the vertical rod is fixedly connected to the detection box, a movable plate is slidably connected to the outer wall of the vertical rod, the movable plate is slidably connected to the inner wall of the fixed sleeve, and the movable plate is threadedly connected to the second screw, the bottom of the movable plate is fixedly connected to a movable rod, and the movable rod is located between the second screw and the vertical rod, and the bottom end of the movable rod is fixedly connected to a detection head.

[0007] As a further solution of the present invention: the top outer wall of the sampling tube is fixedly connected to a first cylinder, the driving end of the first cylinder is fixedly connected to a movable plug, and the movable plug is slidably connected to the inner wall of the sampling tube.

[0008] As a further scheme of the present invention: vertical guide rods and first screw rods are respectively provided on both sides of the fixed sleeve, the vertical guide rods are fixedly connected to the top of the detection box, the first screw rod is rotatably connected to the top of the detection box, a second motor is fixedly connected to the top outer wall of the detection box, and the output shaft of the second motor is fixedly connected to the first screw rod, a third motor is fixedly connected to the detection box on one side of the second motor, and the output shaft of the third motor is fixedly connected to the second screw rod, a movable seat is provided on the outer ring of the fixed sleeve, a thread groove and a guide groove are opened on the top of the movable seat, the thread groove is adapted to the first screw rod, and the guide groove is adapted to the vertical guide rod, a limiting ring is fixedly connected to the bottom of the fixed sleeve with a sliding connection to the inner wall of the movable seat, the top of the limiting ring abuts against a slip ring with a sliding connection to the fixed sleeve, and the slip ring is fixedly connected to the inner wall of the movable seat.

[0009] As a further solution of the present invention: the bottom of the movable seat is rotatably connected to a hollow rotating seat, and symmetrically distributed scrapers are provided on both sides of the rotating seat, and the two groups of scrapers are fixedly connected to the first cleaning cotton on the sides away from each other, and the scraper is fixedly connected to a connecting rod on the side close to the rotating seat, and the connecting rod is fixedly connected to the outer wall of the rotating seat, and the top outer wall of the rotating seat is fixedly sleeved with a second annular rack, and a second driving gear is meshed on one side of the second annular rack, and a fourth motor is fixedly connected to the outer wall of one side of the movable seat, and the output shaft of the fourth motor is fixedly connected to the second driving gear.

[0010] As a further solution of the present invention: a first annular rack is fixedly sleeved on the outer wall of the rotating drum, a first driving gear is meshed on one side of the first annular rack, a first motor is fixedly connected to the bottom inner wall of the detection box, and the output shaft of the first motor is fixedly connected to the first driving gear, a feed pipe is fixedly connected to the bottom of the rotating drum, a feed trough is installed on the feed pipe, an electromagnetic valve is provided at the bottom of the detection box, the inner diameter of the electromagnetic valve is larger than the outer diameter of the feed pipe, and the outer wall of the feed pipe is rotatably connected to a fixed disk fixedly connected to the inner wall of the electromagnetic valve.

[0011] As a further solution of the present invention: a discharge hopper is fixedly connected to the bottom of the detection box, and the discharge hopper is communicated with the electromagnetic valve, a three-way valve is installed at the bottom of the discharge hopper, an oil drain pipe is fixedly connected to the bottom of the three-way valve, and the oil drain pipe is communicated with the inside of the pipeline, the other end of the three-way valve is fixedly connected to an output pipe, the other end of the output pipe is fixedly connected to a second water pump, and the water outlet of the second water pump is fixedly connected to a drain pipe.

[0012] As a further scheme of the present invention: the detection box is provided with symmetrically distributed water spray pipes, both sides of the water spray pipes are fixedly connected with fixed shafts, and the fixed shafts are rotatably connected to the detection box, a section of the fixed shaft extending out of the top of the detection box is fixedly connected with a delivery pipe, a three-way pipe is provided on one side of the top of the detection box, and the three-way pipe is fixedly connected to two delivery pipes, the other end of the three-way pipe is fixedly connected with a connecting pipe, the bottom end of the connecting pipe is fixedly connected with a first water pump, the water inlet of the first water pump is fixedly connected with a hose, and the other end of the hose is fixedly connected with a storage box fixedly connected to the outer wall of the detection box.

[0013] As a further solution of the present invention: a slide groove is provided on the inner wall of the detection box, a movable rod is slidably connected to the inner wall of the slide groove, a second cylinder is fixedly connected to the outer wall of the detection box on the side away from the sampling tube, a driving end of the second cylinder is fixedly connected to the movable rod, a side of the movable rod close to the water spray pipe is fixedly connected to a symmetrically distributed support shaft, a vertical groove is provided on the side of the water spray pipe close to the movable rod, and the vertical groove is adapted to the support shaft.

[0014] As a further solution of the present invention: a fixing ring is fixedly connected to the inner wall of the bottom of the fixing sleeve, a second cleaning cotton is fixedly connected to the inner wall of the fixing ring, and the second cleaning cotton is in contact with the detection head.

[0015] The present invention has the following beneficial effects:

[0016] 1. In the present invention, when sampling, the first cylinder is started, and the driving end of the first cylinder drives the movable plug to move upward. The movable plug moves so that the oil inlet pipe extracts the oil in the pipeline. When the movable plug reaches the top of the oil outlet, the oil enters the detection box through the oil outlet and the oil outlet pipe, and the sampling is completed;

[0017] 2. In the present invention, the oil entering the detection box through the oil outlet pipe enters the rotating drum through the guide of the guide platform, the first motor is started, the output shaft of the first motor rotates to drive the first driving gear to rotate and then drives the rotating drum to rotate through the first annular rack, and the rotating drum causes the oil inside it to slosh, then the third motor is started, the output shaft of the third motor rotates to drive the second screw to rotate and then drives the movable plate to move, so that the movable plate drives the detection head to move through the movable rod, the detection head extends through the limit ring and the second annular rack and contacts the oil in the rotating drum for detection, then the feed chute is opened to discharge the oil to the three-way valve through the feed pipe and the discharge hopper, the three-way valve is controlled to allow the oil to flow back into the pipeline through the oil discharge pipe, so as to realize online monitoring of the oil in the pipeline, facilitate monitoring of the contamination degree of the oil, realize active maintenance, and prevent emulsification;

[0018] 3. In the present invention, after one test is completed, the first water pump is started, and the first water pump transports the cleaning liquid in the storage box to the two groups of water spray pipes through the connecting pipe and the three-way pipe respectively, and sprays the inside of the test box. At the same time, the second cylinder is started, and the driving end of the second cylinder drives the movable rod to move left and right. During the movement of the movable rod, the support shaft and the vertical groove cooperate to make the water spray pipe swing around the fixed axis, thereby increasing the spraying range of the water spray pipe and cleaning the inside of the rotating drum;

[0019] 4. In the present invention, the second motor is started, and the output shaft of the second motor rotates to drive the first screw to rotate, thereby causing the movable seat to move downward, so that the rotating seat moves and drives the scraper and the first cleaning cotton to enter the rotating drum, and the fourth motor is started, and the output shaft of the fourth motor rotates to drive the second driving gear to rotate and then the rotating seat rotates through the second annular rack, and the first cleaning cotton cleans the inner wall of the rotating drum. After that, the three-way valve is controlled to discharge the cleaned waste water through the second water pump and the drain pipe, thereby realizing the cleaning of the rotating drum, avoiding the adhesion of the substances in the previous oil to the inner wall of the rotating drum during monitoring, resulting in detection errors, thereby improving the online monitoring effect and the monitoring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the structure of a turbine oil system for preventing emulsification and controlling oil online proposed by the present invention;

[0021] Figure 2 This is a diagram showing the internal structure of a fixed sleeve of a turbine oil system for preventing emulsification and controlling oil online proposed by the present invention;

[0022] Figure 3 This is a structural diagram of the support shaft installation of a turbine oil system for online oil control to prevent emulsification proposed by the present invention;

[0023] Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0024] Figure 5 For the present invention Figure 1 Schematic diagram of the enlarged structure at B.

[0025] Legend:

[0026] Pipeline 1, oil inlet pipe 2, sampling pipe 3, movable plug 4, first cylinder 5, oil outlet 6, oil outlet pipe 7, detection box 8, rotating drum 9, first annular rack 10, first driving gear 11, first motor 12, guide platform 13, second cylinder 14, movable rod 15, storage box 16, first water pump 17, connecting pipe 18, three-way pipe 19, delivery pipe 20, fixed shaft 21, water spray pipe 22, second motor 23, third motor 24, chute 25, three-way valve 26, oil discharge pipe 27, drain pipe 28, second water pump 29, vertical groove 30, support shaft 31, Vertical guide rod 32, first screw rod 33, fixed sleeve 34, movable seat 35, guide groove 36, thread groove 37, slip ring 38, limit ring 39, fourth motor 40, second driving gear 41, second annular rack 42, rotating seat 43, connecting rod 44, scraper 45, first cleaning cotton 46, discharge pipe 47, electromagnetic valve 48, discharge chute 49, fixed plate 50, discharge hopper 51, movable plate 52, second screw rod 53, vertical rod 54, movable rod 55, detection head 56, second cleaning cotton 57, fixed ring 58, swivel 59, support frame 60. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Reference Figure 1-5 The present invention provides a steam turbine oil system for preventing emulsification and controlling oil online, comprising a pipeline 1, a sampling tube 3 is arranged above the pipeline 1, a detection box 8 is fixedly connected to one side of the sampling tube 3, a support frame 60 is fixedly connected to the bottom of the sampling tube 3 and the detection box 8, and the support frame 60 is fixedly connected to the pipeline 1, an oil inlet pipe 2 is fixedly connected to the bottom of the sampling tube 3, and the oil inlet pipe 2 is connected to the inside of the pipeline 1, an oil outlet 6 is opened on the side of the sampling tube 3 close to the detection box 8, an oil outlet pipe 7 is fixedly connected to the inner wall of the oil outlet 6, a guide platform 13 is fixedly connected to the inner wall of the detection box 8, a rotating drum 9 is rotatably connected to the bottom of the guide platform 13, a rotating ring 59 is fixedly connected to the bottom of the rotating drum 9, and The swivel 59 is rotatably connected to the bottom inner wall of the detection box 8, and the top inner wall of the detection box 8 is fixedly connected with a fixed sleeve 34, and a second screw 53 and a vertical rod 54 are arranged in the fixed sleeve 34, and the second screw 53 and the vertical rod 54 are symmetrically distributed, the second screw 53 is rotatably connected to the detection box 8, and the vertical rod 54 is fixedly connected to the detection box 8, and the outer wall of the vertical rod 54 is slidably connected with a movable plate 52, the movable plate 52 is slidably connected to the inner wall of the fixed sleeve 34, and the movable plate 52 is threadedly connected to the second screw 53, and the bottom of the movable plate 52 is fixedly connected with a movable rod 55, and the movable rod 55 is located between the second screw 53 and the vertical rod 54, and the bottom end of the movable rod 55 is fixedly connected to a detection head 56.

[0030] The top outer wall of the sampling tube 3 is fixedly connected with a first cylinder 5 , the driving end of the first cylinder 5 is fixedly connected with a movable plug 4 , and the movable plug 4 is slidably connected with the inner wall of the sampling tube 3 .

[0031] A vertical guide rod 32 and a first screw rod 33 are respectively provided on both sides of the fixed sleeve 34. The vertical guide rod 32 is fixedly connected to the top of the detection box 8. The first screw rod 33 is rotatably connected to the top of the detection box 8. The second motor 23 is fixedly connected to the outer wall of the top of the detection box 8, and the output shaft of the second motor 23 is fixedly connected to the first screw rod 33. A third motor 24 fixedly connected to the detection box 8 is provided on one side of the second motor 23, and the output shaft of the third motor 24 is fixedly connected to the second screw rod 53. A movable seat 35 is provided on the outer ring of the fixed sleeve 34. A thread groove 37 and a guide groove 36 are opened on the top of the movable seat 35. The thread groove 37 is adapted to the first screw rod 33, and the guide groove 36 is adapted to the vertical guide rod 32. A limiting ring 39 slidably connected to the inner wall of the movable seat 35 is fixedly connected to the bottom of the fixed sleeve 34. A slip ring 38 slidably connected to the fixed sleeve 34 abuts on the top of the limiting ring 39, and the slip ring 38 is fixedly connected to the inner wall of the movable seat 35.

[0032] The bottom of the movable seat 35 is rotatably connected to a hollow rotating seat 43, and symmetrically distributed scrapers 45 are provided on both sides of the rotating seat 43. The two groups of scrapers 45 are fixedly connected to the first cleaning cotton 46 on the sides away from each other, and the scraper 45 is fixedly connected to the side close to the rotating seat 43, and the connecting rod 44 is fixedly connected to the outer wall of the rotating seat 43. The top outer wall of the rotating seat 43 is fixedly sleeved with a second annular rack 42, and one side of the second annular rack 42 is meshed with a second driving gear 41. The outer wall of one side of the movable seat 35 is fixedly connected to a fourth motor 40, and the output shaft of the fourth motor 40 is fixedly connected to the second driving gear 41.

[0033] A first annular rack 10 is fixedly sleeved on the outer wall of the rotating drum 9, and a first driving gear 11 is meshed on one side of the first annular rack 10. A first motor 12 is fixedly connected to the inner wall of the bottom of the detection box 8, and the output shaft of the first motor 12 is fixedly connected to the first driving gear 11. A discharge pipe 47 is fixedly connected to the bottom of the rotating drum 9, and a discharge trough 49 is installed on the discharge pipe 47. An electromagnetic valve 48 is provided at the bottom of the detection box 8. The inner diameter of the electromagnetic valve 48 is larger than the outer diameter of the discharge pipe 47. The outer wall of the discharge pipe 47 is rotatably connected to a fixed plate 50 fixedly connected to the inner wall of the electromagnetic valve 48.

[0034] A discharge hopper 51 is fixedly connected to the bottom of the detection box 8, and the discharge hopper 51 is connected to the electromagnetic valve 48. A three-way valve 26 is installed at the bottom of the discharge hopper 51. The bottom of the three-way valve 26 is fixedly connected to an oil drain pipe 27, and the oil drain pipe 27 is connected to the inside of the pipeline 1. The other end of the three-way valve 26 is fixedly connected to an output pipe, and the other end of the output pipe is fixedly connected to a second water pump 29, and the water outlet of the second water pump 29 is fixedly connected to a drain pipe 28.

[0035] The detection box 8 is provided with symmetrically distributed water spray pipes 22, both sides of which are fixedly connected with fixed shafts 21, and the fixed shafts 21 are rotatably connected to the detection box 8, a section of the fixed shaft 21 extending from the top of the detection box 8 is fixedly connected with a delivery pipe 20, a tee pipe 19 is provided on one side of the top of the detection box 8, and the tee pipe 19 is fixedly connected to the two delivery pipes 20, the other end of the tee pipe 19 is fixedly connected with a connecting pipe 18, the bottom end of the connecting pipe 18 is fixedly connected with a first water pump 17, the water inlet of the first water pump 17 is fixedly connected with a hose, and the other end of the hose is fixedly connected with a storage box 16 fixedly connected to the outer wall of the detection box 8.

[0036] A slide groove 25 is provided on the inner wall of the detection box 8, and a movable rod 15 is slidably connected to the inner wall of the slide groove 25. A second cylinder 14 is fixedly connected to the outer wall of the detection box 8 away from the sampling tube 3, and a driving end of the second cylinder 14 is fixedly connected to the movable rod 15. A side of the movable rod 15 close to the water spray pipe 22 is fixedly connected to a symmetrically distributed support shaft 31. A vertical groove 30 is provided on the side of the water spray pipe 22 close to the movable rod 15, and the vertical groove 30 is adapted to the support shaft 31.

[0037] A fixing ring 58 is fixedly connected to the inner wall of the bottom of the fixing sleeve 34 , and a second cleaning cotton 57 is fixedly connected to the inner wall of the fixing ring 58 , and the second cleaning cotton 57 is in contact with the detection head 56 .

[0038] Working principle:

[0039] In the present application, when sampling, the first cylinder 5 is started, and the driving end of the first cylinder 5 drives the movable plug 4 to move upward, and the movable plug 4 moves so that the oil inlet pipe 2 extracts the oil in the pipeline 1. When the movable plug 4 reaches the top of the oil outlet 6, the oil enters the detection box 8 through the oil outlet 6 and the oil outlet pipe 7, and the sampling is completed;

[0040] In the present application, following the above operation, the oil entering the detection box 8 through the oil outlet pipe 7 enters the drum 9 through the guide of the guide platform 13, and the first motor 12 is started. The output shaft of the first motor 12 rotates to drive the first driving gear 11 to rotate, and then drives the drum 9 to rotate through the first annular rack 10, and the drum 9 causes the oil inside it to slosh. After that, the third motor 24 is started, and the output shaft of the third motor 24 rotates to drive the second screw 53 to rotate and then drives the movable plate 52 to move, so that the movable plate 52 drives the detection head 56 to move through the movable rod 55, and the detection head 56 extends through the limit ring 39 and the second annular rack 42 and contacts the oil in the drum 9 for detection. After that, the discharge chute 49 is opened to discharge the oil to the three-way valve 26 through the discharge pipe 47 and the discharge hopper 51, and the three-way valve 26 is controlled to allow the oil to flow back to the pipeline 1 through the oil discharge pipe 27, so as to realize online monitoring of the oil in the pipeline 1, facilitate monitoring of the contamination degree of the oil, realize active maintenance, and prevent emulsification.

[0041] In the present application, after one inspection is completed, the first water pump 17 is started, and the first water pump 17 transports the cleaning liquid in the storage box 16 to the two groups of water spray pipes 22 through the connecting pipe 18 and the three-way pipe 19, respectively, to spray the inside of the inspection box 8. At the same time, the second cylinder 14 is started, and the driving end of the second cylinder 14 drives the movable rod 15 to move left and right. During the movement of the movable rod 15, the support shaft 31 cooperates with the vertical groove 30, so that the water spray pipe 22 swings around the fixed shaft 21, thereby increasing the spraying range of the water spray pipe 22 and cleaning the inside of the rotating drum 9.

[0042] In the present application, in the above process, the second motor 23 is started, and the output shaft of the second motor 23 rotates to drive the first screw 33 to rotate, thereby causing the movable seat 35 to move downward, so that the rotating seat 43 moves and drives the scraper 45 and the first cleaning cotton 46 to enter the rotating drum 9, and the fourth motor 40 is started. The output shaft of the fourth motor 40 rotates to drive the second driving gear 41 to rotate and then the rotating seat 43 is rotated through the second annular rack 42, and the first cleaning cotton 46 cleans the inner wall of the rotating drum 9. After that, the three-way valve 26 is controlled to discharge the cleaned waste water through the second water pump 29 and the drain pipe 28, thereby realizing the cleaning of the rotating drum 9, avoiding the adhesion of the substances in the previous oil to the inner wall of the rotating drum 9 during monitoring, resulting in detection errors, thereby improving the online monitoring effect and the monitoring efficiency.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A turbine oil system for preventing emulsification and controlling oil online, comprising a pipeline (1), Features: A sampling tube (3) is provided above the pipeline (1), one side of the sampling tube (3) is fixedly connected to a detection box (8), the bottoms of the sampling tube (3) and the detection box (8) are both fixedly connected to a support frame (60), and the support frame (60) is fixedly connected to the pipeline (1), the bottom of the sampling tube (3) is fixedly connected to an oil inlet pipe (2), and the oil inlet pipe (2) is connected to the inside of the pipeline (1), an oil outlet (6) is provided on a side of the sampling tube (3) close to the detection box (8), the inner wall of the oil outlet (6) is fixedly connected to an oil outlet pipe (7), the inner wall of the detection box (8) is fixedly connected to a guide platform (13), the bottom of the guide platform (13) is rotatably connected to a rotating drum (9), the bottom of the rotating drum (9) is fixedly connected to a rotating ring (59), and the rotating ring (59) is rotatably connected to the bottom inner wall of the detection box (8), the top inner wall of the detection box (8) is fixedly connected to a fixed sleeve (34), and the fixed sleeve ( A second screw rod (53) and a vertical rod (54) are provided inside the fixed sleeve (34), wherein the second screw rod (53) and the vertical rod (54) are symmetrically distributed, the second screw rod (53) is rotatably connected to the detection box (8), the vertical rod (54) is fixedly connected to the detection box (8), the outer wall of the vertical rod (54) is slidably connected to a movable plate (52), the movable plate (52) is slidably connected to the inner wall of the fixed sleeve (34), and the movable plate (52) is threadedly connected to the second screw rod (53), the bottom of the movable plate (52) is fixedly connected to a first movable rod (55), and the first movable rod (55) is located between the second screw rod (53) and the vertical rod (54), and the bottom end of the first movable rod (55) is fixedly connected to a detection head (56); the top outer wall of the sampling tube (3) is fixedly connected to a first cylinder (5), the driving end of the first cylinder (5) is fixedly connected to a movable plug (4), and the movable plug (4) is slidably connected to the inner wall of the sampling tube (3);A vertical guide rod (32) and a first screw rod (33) are respectively provided on both sides of the fixed sleeve (34); the vertical guide rod (32) is fixedly connected to the top of the detection box (8); the first screw rod (33) is rotatably connected to the top of the detection box (8); a second motor (23) is fixedly connected to the outer wall of the top of the detection box (8); an output shaft of the second motor (23) is fixedly connected to the first screw rod (33); a third motor (24) fixedly connected to the detection box (8) is provided on one side of the second motor (23); and an output shaft of the third motor (24) is fixedly connected to the second screw rod (53); a movable seat (35) is provided on the outer ring of the fixed sleeve (34); The top of the movable seat (35) is provided with a thread groove (37) and a guide groove (36), the thread groove (37) is adapted to the first screw rod (33), and the guide groove (36) is adapted to the vertical guide rod (32); the bottom of the fixed sleeve (34) is fixedly connected to a limit ring (39) slidably connected to the inner wall of the movable seat (35); the top of the limit ring (39) abuts against a slip ring (38) slidably connected to the fixed sleeve (34), and the slip ring (38) is fixedly connected to the inner wall of the movable seat (35); the bottom of the movable seat (35) is rotatably connected to a hollow rotating seat (43), and scrapers (45) are symmetrically distributed on both sides of the rotating seat (43). The two groups of scrapers (45) are fixedly connected to the first cleaning cotton (46) on the sides away from each other; the scrapers (45) are fixedly connected to the connecting rod (44) on the side close to the rotating seat (43), and the connecting rod (44) is fixedly connected to the outer wall of the rotating seat (43); the top outer wall of the rotating seat (43) is fixedly sleeved with a second annular rack (42); one side of the second annular rack (42) is meshed with a second driving gear (41); the outer wall of one side of the movable seat (35) is fixedly connected to a fourth motor (40), and the output shaft of the fourth motor (40) is fixedly connected to the second driving gear (41); the outer wall of the rotating drum (9) is fixedly sleeved with a first annular rack (42); a rack (10), one side of the first annular rack (10) is meshed with a first driving gear (11), a first motor (12) is fixedly connected to the inner wall of the bottom of the detection box (8), and the output shaft of the first motor (12) is fixedly connected to the first driving gear (11), a feed pipe (47) is fixedly connected to the bottom of the rotating drum (9), a feed trough (49) is installed on the feed pipe (47), an electromagnetic valve (48) is provided at the bottom of the detection box (8), the inner diameter of the electromagnetic valve (48) is larger than the outer diameter of the feed pipe (47), and the outer wall of the feed pipe (47) is rotatably connected to a fixed plate (50) fixedly connected to the inner wall of the electromagnetic valve (48);A discharge hopper (51) is fixedly connected to the bottom of the detection box (8), and the discharge hopper (51) is connected to the electromagnetic valve (48). A three-way valve (26) is installed at the bottom of the discharge hopper (51). An oil discharge pipe (27) is fixedly connected to the bottom of the three-way valve (26), and the oil discharge pipe (27) is connected to the inside of the pipeline (1). The other end of the three-way valve (26) is fixedly connected to an output pipe, and the other end of the output pipe is fixedly connected to a second water pump (29). The water outlet of the second water pump (29) is fixedly connected to a drainage pipe ( 28); the detection box (8) is provided with symmetrically distributed water spray pipes (22), both sides of the water spray pipes (22) are fixedly connected to fixed shafts (21), and the fixed shafts (21) are rotatably connected to the detection box (8), one end of the water spray pipe (22) extending from the top of the detection box (8) is fixedly connected to the delivery pipe (20), a three-way pipe (19) is provided on one side of the top of the detection box (8), and the three-way pipe (19) is fixedly connected to the two delivery pipes (20), and the other end of the three-way pipe (19) is fixedly connected to the connecting pipe (18), The bottom end of the connecting pipe (18) is fixedly connected to a first water pump (17), the water inlet of the first water pump (17) is fixedly connected to a hose, and the other end of the hose is fixedly connected to a storage box (16) fixedly connected to the outer wall of the detection box (8); the inner wall of the detection box (8) is provided with a slide groove (25), the inner wall of the slide groove (25) is slidably connected to a second movable rod (15), the outer wall of the detection box (8) away from the sampling tube (3) is fixedly connected to a second cylinder (14), and the driving end of the second cylinder (14) is connected to the first movable rod (15). The two movable rods (15) are fixedly connected, and a symmetrically distributed support shaft (31) is fixedly connected to a side of the second movable rod (15) close to the water spray pipe (22), and a vertical groove (30) is provided on a side of the water spray pipe (22) close to the second movable rod (15), and the vertical groove (30) is matched with the support shaft (31); a fixing ring (58) is fixedly connected to the inner wall of the bottom of the fixing sleeve (34), and a second cleaning cotton (57) is fixedly connected to the inner wall of the fixing ring (58), and the second cleaning cotton (57) is in contact with the detection head (56). ;

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