An air filtering and detecting device for oil drilling environment

Abstract

This invention relates to the field of auxiliary equipment technology for oil drilling and production, specifically to an air filtration and detection device for oil drilling and production environments. The device includes a base, a support barrel, a transmission circular plate, a support circular plate, a bearing shaft, a filter element, a clamping mechanism, a rotating mechanism, an end-clamping unit, and a weight detection mechanism. The support barrel has an air inlet. The end-clamping unit includes a bearing bracket, a support circular seat, a sealing mechanism, and a connecting mechanism. The bearing bracket is keyed to the bearing shaft. The support circular seat has an air outlet channel. The sealing mechanism opens or closes the air outlet channel. The connecting mechanism locks the support circular seat onto the bearing bracket. The end-clamping unit drives the bearing bracket to move along the axis of the bearing shaft. This device shortens the detection time and can automatically weigh the filter element that has adsorbed impurities, thus improving detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of oil drilling and production auxiliary equipment technology, specifically to an air filtration and detection device for oil drilling and production environments. Background Technology

[0002] At oil drilling sites, the air contains not only conventional dust but also oil mist from drilling fluid evaporation and rock cuttings. This complex mixed pollutant environment with high viscosity and high humidity requires the detection device to have extremely high weighing efficiency and anti-drop stability in order to timely assess the air cleanliness at the drilling site and ensure the safe operation of drilling equipment and the health of workers.

[0003] Chinese patent CN115901523B discloses an air quality monitoring device and method for industrial parks. This patent includes an air intake detection device, a first spring hose, an air quality filter feedback device, a second spring hose, an inlet pipe, and an air pump. One end of the inlet pipe is connected to the air pump, and the other end is connected to the second spring hose. One end of the first spring hose is connected to the air intake detection device. This invention, through the coordinated design of the air intake detection device, spring hose, air quality filter feedback device, and air extraction structure, facilitates both intake monitoring of air within the park and filtration of circulating air. By observing the weight and type of impurities in the filter element after filtration within a unit of time, subsequent air quality testing is easily achieved, greatly improving the convenience and comprehensiveness of the detection.

[0004] However, the filter element in the aforementioned patent needs to be removed before weighing can be performed. During the process of removing and placing the filter element, impurities accumulated on the filter element may fall off, affecting the accuracy of weighing and leading to inaccurate test data. Therefore, a new type of filter testing device needs to be designed to solve the above problems. Summary of the Invention

[0005] Therefore, it is necessary to provide an air filtration detection device for oil drilling and production environments to address the existing technical problems.

[0006] To solve the problems of existing technologies, the technical solution adopted by the present invention is as follows: an air filtration and detection device for oil drilling and production environments, comprising a base, a support barrel fixedly mounted on the base, a transmission circular plate and a support circular plate rotatably mounted at both ends of the support barrel, a bearing shaft coaxially fixed between the transmission circular plate and the support circular plate, a filter element mounted on the bearing shaft, a clamping mechanism for clamping both sides of the filter element, a rotating mechanism for driving the bearing shaft to rotate, an end clamping unit for pressing against the filter element, and a weight detection mechanism for weighing the filter element after a period of operation. An air inlet is provided on the support barrel, and the outer wall of the filter element... The filter element has several air inlets. One end of the filter element is the mounting end, and the other end is the air outlet end. The air outlet end is provided with an air outlet. The end clamping unit includes a bearing bracket located at one end of the bearing shaft near the transmission circular plate, a support circular seat mounted on the bearing bracket, a sealing mechanism located on the support circular seat, and a connecting mechanism located on the bearing bracket. The bearing bracket is keyed to the bearing shaft. The support circular seat has an air outlet channel for air outlet. The sealing mechanism is used to open or close the air outlet channel. The connecting mechanism is used to lock the support circular seat onto the bearing bracket. The end clamping unit is used to drive the bearing bracket to move along the axis of the bearing shaft.

[0007] Furthermore, the rotating mechanism includes a transmission gear rotatably mounted on the base and a transmission gear ring coaxially fixed on the transmission circular plate. The transmission gear meshes with the transmission gear ring, and a drive unit for driving the transmission gear to rotate is provided inside the base.

[0008] Furthermore, the clamping mechanism includes two symmetrically positioned slots on the support circular plate, a sliding buckle plate slidably disposed on each positioning slot, a limiting clamp plate fixedly disposed on each sliding buckle plate, a support shaft disposed between the two positioning slots and fixedly connected to the support circular plate, a limiting disc rotatably disposed on the support shaft, a return torsion spring coaxially sleeved on the support shaft, two abutting arc grooves annularly disposed on the limiting disc, a sliding column fixedly disposed on each sliding buckle plate, and an arc-shaped rack fixedly disposed on one end of the support barrel near the support circular plate. The limiting clamp plate corresponds to and slides with the positioning slots, the sliding column corresponds to and slides with the abutting arc grooves, and the periphery of the limiting disc is provided with contact teeth that can mesh with the arc-shaped rack.

[0009] Furthermore, the weight detection mechanism includes two mounting plates fixedly arranged symmetrically on both sides of the bearing shaft, two limit brackets fixedly arranged at equal intervals on the mounting plates, a mounting arc plate fixedly arranged on each limit bracket, a weighing device fixedly arranged on each mounting arc plate, and a traveling wheel arranged at the top of each limit bracket, with the traveling wheel abutting against the inner wall of the support barrel.

[0010] Furthermore, the end clamping mechanism unit includes a contact plate fixedly mounted on the bearing bracket, a limiting ring coaxially fixedly mounted on the inner wall of the support barrel, and a positioning tension spring mounted on the bearing bracket. One end of the positioning tension spring is connected to the bearing bracket, and the other end is connected to the transmission circular plate. The contact plate abuts against the limiting ring, and an arc-shaped groove is provided at the bottom of the limiting ring.

[0011] Furthermore, the connecting mechanism includes a first arc box fixedly installed on both sides of the support round base, two second arc boxes fixedly installed symmetrically on the bearing bracket, an L-shaped support rod fixedly installed on the contact plate, a contact piece fixedly installed at the end of the L-shaped support rod, and a notched arc ring fixedly installed on the inner wall of the support barrel. The notched arc ring slides in cooperation with the contact piece. A permanent magnet is installed in the first arc box, and an electromagnet is installed in the second arc box. The notch of the notched arc ring is opposite to the position of the arc groove.

[0012] Furthermore, the blocking mechanism includes a wheel frame fixedly mounted on the contact plate, a roller and a connecting shaft rotatably mounted on the wheel frame, a transmission bevel gear coaxially fixedly mounted on the end of the connecting shaft, a bearing groove formed on the side wall of the support round seat, a rotating rod rotatably mounted in the bearing groove, a transfer bevel gear coaxially keyed to the rotating rod, a return spring coaxially sleeved on the rotating rod, and an iris mechanism mounted on the support round seat. The roller abuts against the inner wall of the support barrel, the roller is connected to the connecting shaft via a belt pulley, the rotating rod is connected to the power input end of the iris mechanism via a belt pulley, one end of the return spring is connected to the transfer bevel gear, and the other end is connected to the bearing groove.

[0013] Furthermore, the bearing groove of the supporting round base is formed with an arc-shaped protrusion, and the bearing bracket is provided with an arc-shaped notch, the arc-shaped protrusion and the arc-shaped notch are matched in size.

[0014] Furthermore, the transmission circular plate has mounting holes with the same diameter as the support circular seat, and the mounting holes have positioning arc grooves. The outer wall of the support circular seat has positioning arc blocks with the same size as the positioning arc grooves.

[0015] Furthermore, two handles are symmetrically arranged on the side wall of the support round seat, a cover is coaxially fixed inside the support round seat, and a centering tube is fixedly installed at the bottom of the support round seat.

[0016] The beneficial effects of this invention compared to the prior art are:

[0017] Firstly, compared to existing technologies where staff manually remove the filter element and weigh it, which may cause impurities to fall and affect the accuracy of the test, this device directly transfers the filter element to the weight detection mechanism for weighing after it has adsorbed impurities. This avoids the fall of impurities during the movement of the filter element and can more accurately measure the weight of impurities adsorbed by the filter element. Especially for mixed impurities containing high-viscosity oil mist particles in oil drilling and production sites, it can effectively avoid sample loss due to vibration or insufficient adhesion, thereby more accurately assessing air quality.

[0018] Secondly, the integrated design and automated process of this device can quickly complete the testing and data acquisition of the filter element, greatly shortening the testing cycle and enabling air quality testing to be carried out more timely and efficiently.

[0019] Thirdly, this device, through the cooperation of the clamping mechanism and the end clamping unit, can quickly realize the fixing, position switching and loosening of the filter element, thus improving the detection efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the embodiment. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the embodiment. Figure 2 ;

[0022] Figure 3 This is a cross-sectional view of the inside of the support barrel in the embodiment;

[0023] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 5 This is a three-dimensional sectional view of the inside of the support barrel in the embodiment;

[0025] Figure 6 yes Figure 5 Enlarged schematic diagram of the structure at point B;

[0026] Figure 7 This is an exploded three-dimensional structural diagram of the limiting disk in the embodiment;

[0027] Figure 8 This is a three-dimensional structural diagram of the inside of the support barrel in an embodiment;

[0028] Figure 9 This is a three-dimensional structural diagram of the filter element in the embodiment;

[0029] Figure 10 This is a three-dimensional structural diagram of the support bracket in the embodiment;

[0030] Figure 11yes Figure 10 Enlarged schematic diagram of the structure at point C;

[0031] Figure 12 This is an exploded three-dimensional structural diagram of the support circular base in the embodiment;

[0032] Figure 13 This is a three-dimensional structural diagram of the transmission bevel gear and the adapter bevel gear in the embodiment.

[0033] The following are the labels in the diagram: 1. Base; 2. Support barrel; 3. Transmission circular plate; 4. Transmission gear ring; 5. Mounting hole; 6. Positioning arc groove; 7. Support circular plate; 8. Bearing shaft; 9. Mounting plate; 10. Limit bracket; 11. Mounting arc plate; 12. Weighing device; 13. Traveling wheel; 14. Positioning slide groove; 15. Limit clamp plate; 16. Sliding buckle plate; 17. Sliding column; 18. Support shaft; 19. Return torsion spring; 20. Limiting disc; 21. Contact arc groove; 22. Contact tooth; 23. Air inlet; 24. Arc rack; 25. Transmission gear; 26. Filter element; 27. Air inlet; 28. Air outlet. 29. Support round seat; 30. Positioning arc block; 31. Handle; 32. Air outlet channel; 33. Iris mechanism; 34. Cover; 35. Bearing groove; 36. Rotating rod; 37. Adapter bevel gear; 38. Reset tension spring; 39. Arc-shaped protrusion; 40. First arc box; 41. Centering tube; 42. Limiting ring; 43. Arc-shaped slide groove; 44. Bearing bracket; 45. Positioning tension spring; 46. Second arc box; 47. Contact plate; 48. Wheel frame; 49. Roller; 50. Connecting shaft; 51. Transmission bevel gear; 52. L-shaped support rod; 53. Contact piece; 54. Arc-shaped notch; 55. Notched arc-shaped ring. Detailed Implementation

[0034] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0035] refer to Figures 1 to 13 :

[0036] An air filtration and testing device for oil drilling and production environments includes a base 1, a support barrel 2 fixedly mounted on the base 1, a transmission circular plate 3 and a support circular plate 7 rotatably mounted at both ends of the support barrel 2, a bearing shaft 8 coaxially fixed between the transmission circular plate 3 and the support circular plate 7, a filter element 26 mounted on the bearing shaft 8, a clamping mechanism for clamping both sides of the filter element 26, a rotating mechanism for driving the bearing shaft 8 to rotate, an end-clamping unit for pressing against the filter element 26, and a weight detection mechanism for weighing the filter element 26 after a period of operation. The support barrel 2 has an air inlet 23, and the outer wall of the filter element 26 has several air inlets 27 (e.g., ...). Figure 8As shown), one end of the filter element 26 is the mounting end, and the other end is the air outlet end. The air outlet end is provided with an air outlet 28. The end abutment unit includes a bearing bracket 44 located at one end of the bearing shaft 8 near the transmission circular plate 3, and a support circular seat 29 mounted on the bearing bracket 44 (as shown). Figure 10 As shown), a sealing mechanism is provided on the support round base 29 and a connecting mechanism is provided on the bearing bracket 44. The bearing bracket 44 is keyed to the bearing shaft 8. An air outlet channel 32 for air outlet is provided on the support round base 29. The sealing mechanism is used to open or close the air outlet channel 32. The connecting mechanism is used to lock the support round base 29 onto the bearing bracket 44. The end abutment unit is used to drive the bearing bracket 44 to move along the axis of the bearing shaft 8.

[0037] Before the equipment is put into operation, the support round base 29 is first fixed to the bearing bracket 44 by the connecting mechanism. Then, the mounting end of the filter element 26 is clamped by the clamping mechanism, and the end abutment unit abuts the air outlet end of the filter element 26. At this time, the bottom of the support round base 29 abuts against the air outlet end of the filter element 26 (e.g., Figure 3 The filter element 26 is fixed at one end and two sides using the above structure. Air then enters through the air inlet 23 on the support barrel 2 (it should be noted that the air inlet 23 is connected to an external air delivery mechanism, which is a mature existing technology and will not be described in detail here). Air then enters the interior of the filter element 26 through the air inlet 27 on the filter element 26 (e.g., ...). Figure 9 As shown), the filter layer inside the filter element 26 adsorbs and filters impurities in the air, and then discharges them from the air outlet 28 of the filter element 26. The purified air comes out from the air outlet 28 of the filter element 26 and then passes through the support round seat 29 before being discharged. After a certain period of waiting, the external air supply mechanism stops supplying air to the air inlet 23. The rotating mechanism drives the bearing shaft 8 to rotate, so that the filter element 26 is located below the bearing shaft 8. During this process, the clamping mechanism releases the mounting end of the filter element 26, the end-clamping mechanism releases the air outlet end of the filter element 26, and the connecting mechanism no longer fixes the support seat 29. The sealing mechanism operates to block the air outlet channel 32 on the support seat 29, ensuring that no more gas is discharged from the filter element 26. Then, the weight detection mechanism carries the filter element 26, and the staff records the data and compares it with the initial weight of the filter element 26 to determine how many impurities were filtered per unit time. Then, the staff removes the support seat 29 and the filter element 26 from the equipment (at this time, the filter element 26 has adsorbed impurities and has been weighed). Then, the impurities in the filter element 26 are cleaned and collected, and the air quality data is obtained by combining the data with the weighing data. When air quality needs to be tested again, the staff first places the clean filter element 26 into the support bucket 2, then places the support base 29 onto the bearing bracket 44, and then reverses the bearing shaft 8 through the rotating mechanism, so that the filter element 26 is positioned... Figure 3In this process, the connecting mechanism fixes the support round seat 29 to the bearing bracket 44, the clamping mechanism clamps the installation end of the filter element 26, the end pressing unit presses the air outlet end of the filter element 26, the sealing mechanism opens the support round seat 29 to ensure that the gas is not blocked, and then the external device discharges gas into the air inlet 23 again, and the device can work again.

[0038] To demonstrate the detailed structure of the rotating mechanism, the following features are specifically included:

[0039] The rotating mechanism includes a transmission gear 25 rotatably mounted on the base 1 and a transmission gear ring 4 coaxially fixed on the transmission circular plate 3. The transmission gear 25 meshes with the transmission gear ring 4, and a drive unit for driving the transmission gear 25 to rotate is provided inside the base 1.

[0040] It should be noted that the drive unit can be a drive motor or other device that can drive the transmission gear 25 to rotate. When the device is running, the drive unit drives the transmission gear 25 to rotate, the transmission gear 25 rotates and drives the transmission gear ring 4 to rotate, the transmission gear ring 4 rotates and drives the transmission circular plate 3 to rotate, and the transmission circular plate 3 rotates through the support shaft 18.

[0041] To demonstrate the detailed structure of the clamping mechanism, the following features are specifically included:

[0042] The clamping mechanism includes two symmetrically arranged positioning grooves 14 on the support circular plate 7 (e.g., Figure 7 The following components are provided: a sliding buckle 16 slidably disposed on each positioning groove 14; a limiting clamp 15 fixedly disposed on each sliding buckle 16; a support shaft 18 disposed between two positioning grooves 14 and fixedly connected to the support circular plate 7; a limiting disc 20 rotatably disposed on the support shaft 18; a reset torsion spring 19 coaxially sleeved on the support shaft 18; two abutting arc grooves 21 annularly opened on the limiting disc 20; a sliding column 17 fixedly disposed on each sliding buckle 16; and an arc-shaped rack 24 fixedly disposed on one end of the support barrel 2 near the support circular plate 7. The limiting clamp 15 corresponds one-to-one with the positioning groove 14 and slides in cooperation with it. The sliding column 17 corresponds one-to-one with the abutting arc groove 21 and slides in cooperation with it. The periphery of the limiting disc 20 is provided with contact teeth 22 that can mesh with the arc-shaped rack 24.

[0043] When the equipment has finished testing and the filter element 26 needs to be weighed and removed, the drive unit drives the transmission gear 25 to rotate. The rotation of the transmission gear 25 drives the transmission gear ring 4 to rotate, the rotation of the transmission gear ring 4 drives the transmission circular plate 3 to rotate, the rotation of the transmission circular plate 3 drives the bearing shaft 8 to rotate, the bearing shaft 8 drives the support circular plate 7 to rotate, and the rotation of the support circular plate 7 drives the support shaft 18 and the limiting disc 20 to rotate. When the contact tooth 22 contacts the arc-shaped rack 24, the limiting disc 20 rotates (at this time, the limiting disc 20 overcomes the torque applied by the reset torsion spring 19). The rotation of the limiting disc 20 drives the abutment arc groove 21 to rotate, and the abutment arc groove 21 abuts against the sliding column 17, thereby causing the two sliding buckles 16 to move away from each other (it should be noted that the sliding...). When the movable buckle plate 16 moves with the limiting clamp plate 15, the sliding buckle plate 16 always covers the positioning groove 14 to prevent gas leakage. The movement of the two sliding buckle plates 16 causes the two limiting clamp plates 15 to loosen the mounting end of the filter element 26. When the bearing shaft 8 reverses, the reverse rotation of the bearing shaft 8 causes the contact teeth 22 of the limiting disc 20 to contact the arc-shaped rack 24 again, and causes the limiting disc 20 to reverse (at this time, the limiting disc 20 does not overcome the torque applied by the return torsion spring 19). The reverse rotation of the limiting disc 20 causes the two limiting clamp plates 15 to move closer to each other and clamp the mounting end of the filter element 26. The setting of the return torsion spring 19 can ensure that the limiting disc 20 always has a tendency to rotate, so that the two limiting clamp plates 15 can always clamp the filter element 26.

[0044] To demonstrate the detailed structure of the weight detection mechanism, the following features are specifically included:

[0045] The weight detection mechanism includes two mounting plates 9 fixedly arranged symmetrically on both sides of the bearing shaft 8, two limit brackets 10 fixedly arranged at equal intervals on the mounting plates 9, a mounting arc plate 11 fixedly arranged on each limit bracket 10, a weighing device 12 fixedly arranged on each mounting arc plate 11, and a traveling wheel 13 arranged at the top of each limit bracket 10. The traveling wheel 13 abuts against the inner wall of the support barrel 2.

[0046] After the clamping mechanism and the end clamping unit release the filter element 26, the filter element 26 slides off the limiting bracket 10 onto the mounting arc plate 11 under the action of gravity. Then, the weighing device 12 is used to weigh the filter element 26. The traveling wheels 13 on the limiting bracket 10 can ensure that the limiting bracket 10 remains stable and smooth during movement.

[0047] To demonstrate the detailed structure of the end-clamping unit, the following features are specifically included:

[0048] The end clamping mechanism unit includes a contact plate 47 fixedly mounted on the bearing bracket 44, a limiting ring 42 coaxially fixedly mounted on the inner wall of the support barrel 2, and a positioning tension spring 45 mounted on the bearing bracket 44. One end of the positioning tension spring 45 is connected to the bearing bracket 44, and the other end is connected to the transmission circular plate 3. The contact plate 47 abuts against the limiting ring 42, and the bottom of the limiting ring 42 is provided with an arc-shaped sliding groove 43.

[0049] During device operation, the rotation of the bearing shaft 8 drives the bearing bracket 44 to rotate. Under the action of the positioning tension spring 45, the rotation of the bearing bracket 44 causes the contact plate 47 to slide on the limiting ring 42. When the contact plate 47 slides to the arc-shaped slide groove 43, the bearing bracket 44 will move away from the filter element 26, and thus the support round seat 29 will no longer press against the air outlet end of the filter element 26. When it is necessary to press against the filter element 26, the bearing shaft 8 drives the bearing bracket 44 to rotate. When the contact plate 47 slides out of the arc-shaped slide groove 43, the bearing bracket 44 will overcome the tension of the positioning tension spring 45 and press against the air outlet end of the filter element 26 with the support round seat 29.

[0050] To demonstrate the detailed structure of the connecting mechanism, the following features are specifically included:

[0051] The connecting mechanism includes a first arc box 40 fixedly disposed on both sides of the support circular base 29 (e.g. Figure 12 As shown, two second arc boxes 46 are symmetrically fixed on the support bracket 44, an L-shaped support rod 52 is fixed on the contact plate 47, a contact piece 53 is fixed at the end of the L-shaped support rod 52, and a notched arc ring 55 is fixed on the inner wall of the support barrel 2. The notched arc ring 55 slides with the contact piece 53. A permanent magnet is provided in the first arc box 40, and an electromagnet is provided in the second arc box 46. The notch of the notched arc ring 55 is opposite to the position of the arc groove 43.

[0052] It should be noted that the electromagnets in the two second arc boxes 46 have different magnetic properties, one weak and the other strong. The weaker electromagnet can be pulled apart by hand due to its attraction to the permanent magnet in the first arc box 40, while the stronger electromagnet cannot be pulled apart by hand. Furthermore, a power source is provided on the notched arc ring 55. The L-shaped support rod 52 and the contact piece 53 are made of conductive material and are electrically connected to the stronger electromagnet. When the contact piece 53 contacts the notched arc ring 55, the power source on the notched arc ring 55 supplies power to the stronger electromagnet, causing it to generate a strong magnetic force. This, combined with the permanent magnet in the first arc box 40, firmly fixes the support base 29 to the bearing bracket 4. 4. As the bearing shaft 8 rotates, the contact plate 47 drives the L-shaped support rod 52 to slide on the notched arc ring 55. When it slides to the notched position, the contact piece 53 disengages from the notched arc ring 55. At this time, the contact plate 47 also slides to the arc groove 43. This allows the strong electromagnet to temporarily lose its magnetism when the support round seat 29 no longer presses against the air outlet of the filter element 26. This makes it easier for subsequent staff to remove the support round seat 29 from the bearing bracket 44. It should also be noted that when the support round seat 29 is placed on the bearing bracket 44, the attraction force generated by the weak electromagnet and the corresponding permanent magnet can ensure that the support round seat 29 will not detach from the bearing bracket 44 without other external interference.

[0053] To demonstrate the detailed structure of the blocking mechanism, the following features were specifically included:

[0054] The blocking mechanism includes a wheel frame 48 fixedly mounted on the contact plate 47, a roller 49 rotatably mounted on the wheel frame 48 and a connecting shaft 50, a transmission bevel gear 51 coaxially fixedly mounted on the end of the connecting shaft 50, a bearing groove 35 opened on the side wall of the support round seat 29, a rotating rod 36 rotatably mounted in the bearing groove 35, a transfer bevel gear 37 coaxially keyed to the rotating rod 36, a return spring 38 coaxially sleeved on the rotating rod 36, and an iris mechanism 33 mounted on the support round seat 29. The roller 49 abuts against the inner wall of the support barrel 2. The roller 49 is connected to the connecting shaft 50 via a belt pulley. The rotating rod 36 is connected to the power input end of the iris mechanism 33 via a belt pulley. One end of the return spring 38 is connected to the transfer bevel gear 37, and the other end is connected to the bearing groove 35.

[0055] After the support round seat 29 is fixed to the bearing bracket 44, the transition bevel gear 37 meshes with the transmission bevel gear 51. Since the transition bevel gear 37 is elastically set on the rotating rod 36 by the return spring 38, when the two teeth jam, the tension of the return spring 38 can make the transition bevel gear 37 always tend to move closer to the transmission bevel gear 51. During the process of removing the filter element 26, the bearing shaft 8 rotates to transfer the filter element 26 from the upper half to the lower half of the support barrel 2. During this process, the contact plate 47 drives the wheel frame 48 to move with the rotation of the bearing shaft 8, which in turn causes the roller 49 to rotate against the inner wall of the support barrel 2. The rotation of the roller 49 drives the connecting shaft 50 to rotate through the pulley. The rotation of the connecting shaft 50 drives the transmission bevel gear 51 to rotate. The rotation of the transmission bevel gear 51 drives the transition bevel gear 37 to rotate. The rotation of the transition bevel gear 37 drives the rotating rod 36 to rotate. The rotation of the rotating rod 36 drives the pulley to rotate. The output end of the iris mechanism 33 is driven to operate, causing the iris mechanism 33 to close the air outlet channel 32 on the support round seat 29. It should be noted that when the iris mechanism 33 closes the air outlet channel 32, the filter element 26 is located in the lower half of the support barrel 2 and just slides down from the limit bracket 10 onto the weighing device 12. When the filter element 26 is installed and air testing is required, the bearing shaft 8 reverses. Similarly, the roller 49 again comes into contact with the inner wall of the support barrel 2 and reverses, thereby driving the iris mechanism 33 to operate and opening the air outlet channel 32.

[0056] To ensure that the support base 29 can be accurately inserted into the bearing bracket 44, the following features are specifically provided:

[0057] An arc-shaped protrusion 39 is formed at the bearing groove 35 of the supporting round base 29, and an arc-shaped notch 54 is provided on the bearing bracket 44. The arc-shaped protrusion 39 and the arc-shaped notch 54 are matched in size.

[0058] When installing the support round seat 29, aligning the arc-shaped protrusion 39 with the arc-shaped notch 54 can ensure that the support round seat 29 can be accurately positioned, ensuring that the adapter bevel gear 37 can mesh with the transmission bevel gear 51.

[0059] To ensure that the support base 29 can be accurately inserted into the transmission plate 3, the following features are specifically provided:

[0060] The transmission circular plate 3 has a mounting hole 5 with the same diameter as the support circular base 29. The mounting hole 5 has a positioning arc groove 6. The outer wall of the support circular base 29 has a positioning arc block 30 with the same size as the positioning arc groove 6.

[0061] The cooperation between the positioning arc block 30 and the positioning arc groove 6 ensures that the support round seat 29 can be positioned quickly and accurately, which facilitates the staff to pick up and put down the support round seat 29.

[0062] To ensure better operation of the device, the following features are specifically designed:

[0063] Two handles 31 are symmetrically arranged on the side wall of the support round base 29. A cover 34 is coaxially fixed inside the support round base 29. A centering tube 41 is fixedly arranged at the bottom of the support round base 29.

[0064] When taking the support base 29 out of the bag, the handle 31 makes it easy for the staff to operate, the cover 34 protects the various parts inside the support base 29, and the centering tube 41 at the bottom of the support base 29 allows the centering tube 41 to be inserted into the air outlet 28 of the filter element 26 first when the support base 29 is installed onto the support bracket 44, so that the support bracket 44 can drive the support base 29 to press and fix the air outlet end of the filter element 26.

[0065] The working principle of this device is as follows: Before operation, the operator first drives the bearing shaft 8 to rotate via the transmission mechanism, causing the two limiting brackets 10 to invert. Then, the support round seat 29 is removed, and a clean filter element 26 is placed on the limiting bracket 10. The support round seat 29 is then returned, ensuring that the positioning arc block 30 corresponds to the positioning arc groove 6, and the arc-shaped protrusion 39 corresponds to the arc-shaped notch 54. Then, under magnetic attraction, the support round seat 29 is positioned on the bearing bracket 44. At this time, the centering tube 41 is also inserted into the air outlet 28 of the filter element 26. Then, the transmission mechanism moves, causing the bearing shaft 8 to reverse, causing the limiting bracket 10 to change from an inverted state to an upright state (e.g., ...). Figure 3During this process, the contact tooth 22 meshes with the arc-shaped rack 24, causing the limiting disc 20 to rotate and drive the two limiting clamps 15 to move towards each other and clamp the mounting end of the filter element 26. The contact plate 47 slides out of the arc-shaped groove 43, causing the support bracket 44 to press against the air outlet end of the filter element 26 with the support round seat 29. When the contact plate 47 slides out of the arc-shaped groove 43, the contact piece 53 also contacts the notched arc-shaped ring 55, causing the electromagnet with strong magnetic force to be energized and attracted to the permanent magnet in the corresponding second arc box 46, so that the support round seat 29 is further firmly fixed to the support bracket 44. At this point, the filter element 26 is fixed. During the above process, the roller 49 rotates against the inner wall of the support barrel 2. After transmission through the connecting shaft 50, the transmission bevel gear 51, the adapter bevel gear 37 and the rotating rod 36, the iris mechanism 33 is activated, opening the air outlet channel 32 on the support round seat 29. After that, the external delivery... The gas supply mechanism begins to deliver air into the inlet 23. The gas enters the support barrel 2, then enters the inner wall of the filter element 26 through the inlet 27, and finally exits through the outlet 28 into the outlet channel 32. After a certain time, the gas supply stops, the transmission mechanism starts running again, and the bearing shaft 8 reverses, causing the limiting bracket 10 to change from an upright state to an inverted state. The specific movement process is the opposite of the above-mentioned process of clamping the filter element 26. After the filter element 26 is no longer clamped by the limiting clamp 15 and no longer pressed against the bottom of the support round seat 29, the filter element 26 with adsorbed impurities falls onto the weighing device 12. By comparing the value displayed on the weighing device 12 with the value of the clean filter element 26, the data of impurities in the air per unit time can be obtained, which is convenient for the staff to analyze later. Then, the staff removes the weighed filter element 26 from the support barrel 2, collects and analyzes the impurities, and obtains the air quality test data.

[0066] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A device for detecting air filtration in oil drilling and production environments, characterized in that, The system includes a base (1), a support barrel (2) fixedly mounted on the base (1), a transmission circular plate (3) and a support circular plate (7) rotatably mounted at both ends of the support barrel (2), a bearing shaft (8) coaxially fixed between the transmission circular plate (3) and the support circular plate (7), a filter element (26) mounted on the bearing shaft (8), a clamping mechanism for clamping both sides of the filter element (26), a rotating mechanism for driving the bearing shaft (8) to rotate, an end clamping unit for pressing against the filter element (26), and a weight detection mechanism for weighing the filter element (26) after working for a period of time. The support barrel (2) has an air inlet (23), and the outer wall of the filter element (26) has several air inlets (27). One end of the filter element (26) is for mounting. One end is the air outlet end, and the air outlet end is provided with an air outlet (28). The end clamping unit includes a bearing bracket (44) provided at one end of the bearing shaft (8) near the transmission circular plate (3), a support round seat (29) installed on the bearing bracket (44), a sealing mechanism provided on the support round seat (29), and a connecting mechanism provided on the bearing bracket (44). The bearing bracket (44) is keyed to the bearing shaft (8). An air outlet channel (32) for air outlet is opened on the support round seat (29). The sealing mechanism is used to open or close the air outlet channel (32). The connecting mechanism is used to lock the support round seat (29) onto the bearing bracket (44). The end clamping unit is used to drive the bearing bracket (44) to move along the axis of the bearing shaft (8). The rotating mechanism includes a transmission gear (25) rotatably mounted on the base (1) and a transmission gear ring (4) coaxially fixed on the transmission circular plate (3). The transmission gear (25) meshes with the transmission gear ring (4). A drive unit for driving the transmission gear (25) to rotate is provided inside the base (1). The clamping mechanism includes two symmetrically arranged positioning grooves (14) on the support circular plate (7), a sliding buckle plate (16) slidably arranged on each positioning groove (14), a limiting clamp plate (15) fixedly arranged on each sliding buckle plate (16), a support shaft (18) arranged between the two positioning grooves (14) and fixedly connected to the support circular plate (7), a limiting disc (20) rotatably arranged on the support shaft (18), and a reset torsion spring (19) coaxially sleeved on the support shaft (18), forming an annular shape. Two abutting arc grooves (21) are provided on the limiting disc (20), a sliding column (17) is fixedly provided on each sliding buckle plate (16), and an arc-shaped toothed rack (24) is fixedly provided on the support barrel (2) near the support disc (7). The limiting clamp (15) corresponds to the positioning slide groove (14) and slides in fit. The sliding column (17) corresponds to the abutting arc groove (21) and slides in fit. The periphery of the limiting disc (20) is provided with contact teeth (22) that can mesh with the arc-shaped toothed rack (24).

2. The air filtration and detection device for oil drilling and production environments according to claim 1, characterized in that, The weight detection mechanism includes two mounting plates (9) fixedly arranged symmetrically on both sides of the bearing shaft (8), two limit brackets (10) fixedly arranged at equal intervals on the mounting plates (9), a mounting arc plate (11) fixedly arranged on each limit bracket (10), a weighing device (12) fixedly arranged on each mounting arc plate (11), and a traveling wheel (13) arranged at the top of each limit bracket (10). The traveling wheel (13) abuts against the inner wall of the support barrel (2).

3. The air filtration and detection device for oil drilling and production environment according to claim 2, characterized in that, The end clamping mechanism unit includes a contact plate (47) fixedly mounted on the bearing bracket (44), a limiting ring (42) coaxially fixed on the inner wall of the support barrel (2), and a positioning spring (45) mounted on the bearing bracket (44). One end of the positioning spring (45) is connected to the bearing bracket (44), and the other end is connected to the transmission circular plate (3). The contact plate (47) abuts against the limiting ring (42), and the bottom of the limiting ring (42) is provided with an arc-shaped groove (43).

4. The air filtration and detection device for oil drilling and production environment according to claim 3, characterized in that, The connecting mechanism includes a first arc box (40) fixedly installed on both sides of the support round seat (29), two second arc boxes (46) fixedly installed symmetrically on the bearing bracket (44), an L-shaped support rod (52) fixedly installed on the contact plate (47), a contact piece (53) fixedly installed at the end of the L-shaped support rod (52), and a notched arc ring (55) fixedly installed on the inner wall of the support barrel (2). The notched arc ring (55) and the contact piece (53) are slidably engaged. A permanent magnet is installed in the first arc box (40), and an electromagnet is installed in the second arc box (46). The notch of the notched arc ring (55) is opposite to the position of the arc groove (43).

5. The air filtration and detection device for oil drilling and production environment according to claim 4, characterized in that, The sealing mechanism includes a wheel frame (48) fixedly mounted on the contact plate (47), a roller (49) rotatably mounted on the wheel frame (48), a connecting shaft (50), a transmission bevel gear (51) coaxially fixedly mounted on the end of the connecting shaft (50), a bearing groove (35) opened on the side wall of the support round seat (29), a rotating rod (36) rotatably mounted in the bearing groove (35), and a connecting bevel gear (37) coaxially keyed to the rotating rod (36). The reset spring (38) is sleeved on the rotating rod (36) and the iris mechanism (33) is set on the support round seat (29). The roller (49) abuts against the inner wall of the support barrel (2). The roller (49) is connected to the connecting shaft (50) through the belt pulley. The power input end of the rotating rod (36) is connected to the iris mechanism (33) through the belt pulley. One end of the reset spring (38) is connected to the transition bevel gear (37), and the other end is connected to the bearing groove (35).

6. The air filtration and detection device for oil drilling and production environment according to claim 5, characterized in that, An arc-shaped protrusion (39) is formed at the bearing groove (35) of the supporting round base (29), and an arc-shaped notch (54) is opened on the bearing bracket (44). The arc-shaped protrusion (39) and the arc-shaped notch (54) are matched in size.

7. The air filtration and detection device for oil drilling and production environment according to claim 6, characterized in that, The transmission circular plate (3) has an installation hole (5) with the same diameter as the support circular seat (29). The installation hole (5) has a positioning arc groove (6). The outer wall of the support circular seat (29) has a positioning arc block (30) with the same size as the positioning arc groove (6).

8. The air filtration and detection device for oil drilling and production environment according to claim 7, characterized in that, Two handles (31) are symmetrically arranged on the side wall of the support round seat (29). A cover (34) is coaxially fixed inside the support round seat (29). A centering tube (41) is fixedly arranged at the bottom of the support round seat (29).

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