Oil and gas concentration sampling and detection device for external floating roof storage tank and sampling and detection method thereof

Abstract

The invention relates to an oil and gas concentration sampling and detection device for an external floating roof storage tank and a sampling and detection method thereof. The device comprises a sleeve, wherein the sleeve is mounted on the top of the external floating roof storage tank, wherein two lifts are welded on the upper end of the sleeve, wherein one end of the lift is fixedly connected to a transmission plate, wherein a driving device is mounted above the transmission plate, wherein the driving device is rotationally connected to a driving shaft, wherein the lower end of the driving shaft is fixedly connected to a connecting plate, wherein a plurality of detection modules arranged in a straight line are arranged on the connecting plate, wherein a supporting plate is fixedly connected above the sleeve, wherein a movable sleeve is placed on the supporting plate, wherein the movable sleeve and an oil and gas recovery module are an integrated structure, wherein the oil and gas concentration sampling and detection device for an external floating roof storage tank detects oil and gas concentration at different positions at different heights, and recovers and processes a part of the oil and gas, wherein the elevator and the driving device are arranged, and the detection module is positionally adjusted, and concentration detection can be performed at different positions at a certain height, and wherein the oil and gas recovery module is arranged, thereby reducing air pollution.

Description

Technical Field

[0001] The invention relates to an oil and gas concentration sampling and detection device for an external floating roof storage tank and a sampling and detection method thereof, belonging to the technical field of oil and gas model concentration detection equipment for external floating roof storage tanks, and also includes a sampling and detection method for the oil and gas concentration sampling and detection device for an external floating roof storage tank. Background Art

[0002] Large-scale crude oil storage mostly adopts external floating roof structure, and there is a gap between the outer edge ring plate of the floating roof and the tank wall. The primary sealing wall generally adopts mechanical seal or soft seal, and the sealing device is in close contact with the surface of the tank body to minimize the volatilization of oil and gas. The sealing plate, sealing belt and rubber sealing strip constitute a combination, and the elastic sealing plate is pressed against the tank wall to complete the connection between the combination and the pipe wall to achieve secondary sealing. An annular space is formed between the primary and secondary seals, but the oil and gas concentration in the annular space is still relatively high. Under the conditions of lightning strikes, static electricity or other ignition sources, fire or explosion hazards may occur. The oil and gas concentration at multiple locations should be accurately detected, and remedial and improvement should be carried out as needed to reduce the risk factor. At present, there are still deficiencies in the sampling and detection device of oil and gas concentration in external floating roof storage tanks, and the detection method needs to be improved. There are some deficiencies in oil and gas recovery and pollution reduction, so further improvement is needed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects, provide an oil and gas concentration sampling and detection device for an external floating roof storage tank and a sampling and detection method thereof, detect the oil and gas concentration at different positions at different heights, and recover and process a part of the oil and gas, which can effectively solve the problems in the background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The oil and gas concentration sampling and detection device of an external floating roof storage tank comprises a control unit, a sleeve, a driving device, a lift, a detection module, a movable sleeve and an oil and gas recovery module, wherein the sleeve is installed at the top of the external floating roof storage tank, and two lifts are welded to the upper end of the sleeve, one end of the lift is fixedly connected to a transmission plate, a driving device is installed above the transmission plate, the driving device is rotatably connected to a driving shaft, the lower end of the driving shaft is fixedly connected to a connecting plate, a plurality of detection modules arranged in a straight line are provided on the connecting plate, a support plate is fixedly connected to the upper end of the sleeve, the movable sleeve is placed on the support plate, and the movable sleeve and the oil and gas recovery module are an integrated structure.

[0006] Furthermore, the driving device includes a driving motor, a transmission shaft and a reducer, the driving motor and the reducer are fixedly connected to the transmission plate below, the driving motor is connected to the reducer on one side through the transmission shaft, and the reducer is rotationally connected to the driving shaft, and the driving shaft extends through the transmission plate to the interior of the sleeve.

[0007] Furthermore, the detection module includes a hollow seat, an air pump, a detector and a solenoid valve. The hollow seat is processed with an air inlet duct and an exhaust duct. The air inlet duct is connected to the exhaust duct above through an air pump. The inside of the hollow seat is equipped with an air pump, a detector and a solenoid valve arranged in sequence from bottom to top, and the head of the detector and the solenoid valve are located in the exhaust duct.

[0008] Furthermore, the oil and gas recovery module includes a fixed plate, a through-hole box, an adsorbent and a threaded sleeve. The circumferential surface of the fixed plate is bonded to the inner circumferential surface of the movable sleeve. The fixed plate is processed with a through groove, and the through groove is located below the through-hole box. The fixed plate is threadedly connected to the threaded sleeve, and the threaded sleeve is an integral structure with the through-hole box on the inner side. The through-hole box is placed with an adsorbent, and a handle is fixedly connected to the top of the threaded sleeve.

[0009] Furthermore, the control unit is electrically connected to the vacuum pump, the lift, the solenoid valve and the drive motor, and the control unit is electrically connected to the detector and the display screen.

[0010] Furthermore, the oil and gas recovery module is an oil and gas separator.

[0011] Furthermore, the detection module is an oil and gas detector.

[0012] Furthermore, the connecting plate is connected to the detection module via a bracket, and the bracket is composed of a cylindrical rod and a square block.

[0013] The sampling and detection method of the oil and gas concentration sampling and detection device of the external floating roof storage tank has the following steps: using the control unit to manipulate the movement of the elevator, the elevator drives the transmission plate to move up and down, through the transmission action of the drive shaft and the connecting plate, the height of the detection module changes, and the oil and gas concentration at different positions can be detected; the control unit is operated to operate the drive device, drive the drive shaft to rotate, and the drive shaft drives the connecting plate and the detection module to swing, and further adjust the position of the detection module. The detection module can detect the oil and gas concentration at different positions at a certain height, and the concentration detection data will be transmitted to the control unit, and after processing and analysis, it will be converted into image information on the display screen. The detection module absorbs part of the oil and gas, and the other part of the oil and gas continues to move and reaches the oil and gas recovery module for adsorption treatment, thereby reducing air pollution. At the same time, it also improves the recovery rate of oil and gas, and the movable sleeve is regularly removed from the support plate to process the oil and gas absorbed by the oil and gas recovery module.

[0014] Beneficial effects of the present invention: The oil and gas concentration sampling and detection device for the external floating roof storage tank involved in the present invention detects the oil and gas concentration at different positions at different heights, and recovers and processes a part of the oil and gas.

[0015] (1) By setting up a lift and a driving device, the operation of the lift drives the transmission plate to move. Through the transmission action of the driving device and the driving shaft, the position of the detection module is changed to detect the oil and gas concentration at different heights. The operation of the driving device drives the driving shaft to rotate, causing the connecting plate and the bracket to rotate and swing, so that the concentration can be detected at different positions at a certain height.

[0016] (2) By setting up a detection module, the control unit controls the vacuum pump to absorb oil and gas, and the oil and gas enter the exhaust duct from the intake duct. The detector detects the oil and gas concentration and transmits the information to the control unit for processing through electrical signals and displays it on the display screen. The control unit controls the solenoid valve to open and discharge the oil and gas from the detection module.

[0017] (3) By setting up an oil and gas recovery module, the oil and gas move into the through groove and continue to move to the through-hole box. The adsorbent absorbs the oil and gas, and the remaining gas continues to move out of the oil and gas recovery module. The movable sleeve is removed from the support plate, and the control handle is rotated to make the threaded sleeve leave the hollow seat, so as to realize the rapid disassembly of the through-hole box, which is convenient for the subsequent treatment of the adsorbent. The oil and gas are recovered to reduce the pollution to the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] Figure 1 It is a cross-sectional view of the oil and gas concentration sampling and detection device of the external floating roof storage tank of the present invention.

[0020] Figure 2 It is an enlarged schematic diagram of the detection module in the oil and gas concentration sampling and detection device of the external floating roof storage tank of the present invention.

[0021] Figure 3 It is an enlarged schematic diagram of the oil and gas recovery module in the oil and gas concentration sampling and detection device of the external floating roof storage tank of the present invention.

[0022] Figure 4 It is a schematic diagram of electrical connection of the oil and gas concentration sampling and detection device of the external floating roof storage tank of the present invention.

[0023] Figure 5 It is a schematic diagram of a movable sleeve in the oil and gas concentration sampling and detection device of an external floating roof storage tank of the present invention.

[0024] Figure 6 It is a schematic diagram of a bracket in the oil and gas concentration sampling and detection device of an external floating roof storage tank of the present invention.

[0025] Numbers in the figure: 1. sleeve; 2. elevator; 3. transmission plate; 4. driving device; 41. driving motor; 42. transmission shaft; 43. reducer; 6. driving shaft; 7. support plate; 8. movable sleeve; 9. oil and gas recovery module; 91. fixed plate; 92. through groove; 93. through hole box; 94. adsorbent; 95. threaded sleeve; 96. handle; 10. connecting plate; 11. bracket; 12. detection module; 13. hollow seat; 14. air inlet; 15. vacuum pump; 16. exhaust duct; 17. detector; 18. solenoid valve; 19. control unit; 20. display screen. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] Specific embodiment 1, as Figure 1 As shown, the oil and gas concentration sampling and detection device of the external floating roof storage tank includes a control unit 19, a sleeve 1, a driving device 4, a lift 2, a detection module 12, a movable sleeve 8 and an oil and gas recovery module 9. The sleeve 1 is installed at the top of the external floating roof storage tank, and two lifts 2 are welded to the upper end of the sleeve 1. One end of the lift 2 is fixedly connected to the transmission plate 3. A driving device 4 is installed above the transmission plate 3. The driving device 4 is rotatably connected to the driving shaft 6. The lower end of the driving shaft 6 is fixedly connected to the connecting plate 10. The connecting plate 10 is provided with a plurality of detection modules 12 arranged in a straight line. A support plate 7 is fixedly connected to the upper part of the sleeve 1, and the movable sleeve 8 is placed on the support plate 7. The movable sleeve 8 and the oil and gas recovery module 9 are an integrated structure.

[0028] Specific embodiment 2, based on specific embodiment 1, refer to Figure 1 and Figure 2The driving device 4 includes a driving motor 41, a transmission shaft 42 and a reducer 43. The driving motor 41 and the reducer 43 are fixedly connected to the transmission plate 3 below. The driving motor 41 is connected to the reducer 43 on one side through the transmission shaft 42. The reducer 43 transmits the torque to the transmission shaft 42 through the deceleration effect, and the reducer 43 is rotatably connected to the driving shaft 6. The driving shaft 6 passes through the transmission plate 3 and extends to the inside of the sleeve 1. The detection module 12 includes a hollow seat 13, an air pump 15, a detector 17 and a solenoid valve 18. The hollow seat 13 is processed with an intake duct 14 and an exhaust duct 16. The intake duct 1 4 is connected to the exhaust passage 16 above through the air pump 15. The control unit 19 controls the air pump 15 to absorb oil and gas. The oil and gas enter the exhaust passage 16 from the air inlet passage 14. The air pump 15, the detector 17 and the solenoid valve 18 are installed in the hollow seat 13 in sequence from bottom to top. The head of the detector 17 and the solenoid valve 18 are located in the exhaust passage 16. The detector 17 detects the oil and gas concentration and transmits the information to the control unit 19 for processing through an electrical signal and displays it on the display screen 20. The control unit 19 controls the solenoid valve 18 to open to discharge the oil and gas out of the detection module 12.

[0029] Specific embodiment 3, based on specific embodiment 1, refer to Figure 1 , Figure 3 and Figure 4 The oil and gas recovery module 9 includes a fixed plate 91, a through hole box 93, an adsorbent 94 and a threaded sleeve 95. The circumferential surface of the fixed plate 91 is bonded to the inner circumferential surface of the movable sleeve 8. The fixed plate 91 is processed with a through groove 92. The oil and gas move into the through groove 92, and the through groove 92 is located below the through hole box 93. The oil and gas continue to move through the through hole box 93. The fixed plate 91 is threadedly connected with the threaded sleeve 95. The threaded sleeve 95 and the inner through hole box 93 are an integrated structure. The through hole box 93 is placed with an adsorbent 94, and the adsorbent 94 is effective for oil recovery. The gas is absorbed and processed, and the remaining gas continues to move away from the oil and gas recovery module 9. A handle 96 is fixedly connected above the threaded sleeve 95. The handle 96 is controlled to rotate to make the threaded sleeve 95 leave the fixed plate 91, and the adsorbent 94 is subsequently processed. The control unit 19 is electrically connected to the vacuum pump 15, the elevator 2, the solenoid valve 18 and the drive motor 41. The control unit 19 is electrically connected to the detector 17 and the display screen 20. The control unit 19 processes the data of the detector 17 and transmits it to the display screen 20.

[0030] Specific embodiment 4, based on specific embodiment 1, refer to Figure 1 , Figure 5 and Figure 6 The oil and gas recovery module 9 is an oil and gas separator, and the detection module 12 is an oil and gas detector, which can complete the oil and gas concentration detection work. The connecting plate 10 is connected to the detection module 12 through a bracket 11, and the bracket 11 is composed of a cylindrical rod and a square block.

[0031] The working principle of the present invention is as follows: the control unit 19 is used to manipulate the movement of the elevator 2, and the elevator 2 drives the transmission plate 3 to move up and down. Through the transmission action of the drive shaft 6 and the connecting plate 10, the height of the detection module 12 is changed, and the oil and gas concentration at different positions can be detected. The control unit 19 is operated to operate the drive device 4, drive the drive shaft 6 to rotate, and the drive shaft 6 drives the connecting plate 10 and the detection module 12 to swing. The position of the detection module 12 is further adjusted, and the oil and gas concentration at different positions at a certain height can be detected. The concentration detection data will be transmitted to the control unit 19, and after processing and analysis, it is converted into image information of the display screen 20. The detection module 12 absorbs part of the oil and gas, and the other part of the oil and gas continues to move and reaches the oil and gas recovery module 9 for adsorption treatment, thereby reducing air pollution. At the same time, the recovery rate of the oil and gas is also improved. The movable sleeve 8 is regularly removed from the support plate 7 to process the oil and gas absorbed by the oil and gas recovery module 9.

[0032] The above are preferred implementation modes of the present invention. Those skilled in the art to which the present invention belongs can also change and modify the above implementation modes. Therefore, the present invention is not limited to the above specific implementation modes. Any obvious improvements, substitutions or modifications made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention.

Claims

1. The oil and gas concentration sampling and detection device of the external floating roof storage tank is characterized by: The invention comprises a control unit (19), a sleeve (1), a driving device (4), an elevator (2), a detection module (12), a movable sleeve (8) and an oil and gas recovery module (9), wherein the sleeve (1) is installed at the top of an external floating roof storage tank, two elevators (2) are welded to the upper end of the sleeve (1), one end of the elevator (2) is fixedly connected to a transmission plate (3), a driving device (4) is installed above the transmission plate (3), the driving device (4) is rotatably connected to a driving shaft (6), the lower end of the driving shaft (6) is fixedly connected to a connecting plate (10), the connecting plate (10) is provided with a plurality of detection modules (12) arranged in a straight line, a support plate (7) is fixedly connected to the upper end of the sleeve (1), and the movable sleeve (8) is placed on the support plate (7), the movable sleeve (8) and the oil and gas recovery module (9) are an integral structure; the oil and gas recovery module (9) comprises a fixed plate (91), a through-hole box (93), an adsorbent (94) and a threaded sleeve (95); the circumferential surface of the fixed plate (91) is bonded to the inner circumferential surface of the movable sleeve (8); the fixed plate (91) is processed with a through groove (92), and the through groove (92) is located below the through-hole box (93); the fixed plate (91) is threadedly connected with the threaded sleeve (95); the threaded sleeve (95) and the through-hole box (93) on the inner side are an integral structure; the through-hole box (93) is provided with an adsorbent (94); a handle (96) is fixedly connected to the top of the threaded sleeve (95); and the oil and gas recovery module (9) is an oil and gas separator.

2. The oil and gas concentration sampling and detection device for an external floating roof storage tank according to claim 1 is characterized in that: The driving device (4) comprises a driving motor (41), a transmission shaft (42) and a reducer (43); the driving motor (41) and the reducer (43) are fixedly connected to the transmission plate (3) below; the driving motor (41) is connected to the reducer (43) on one side via the transmission shaft (42); the reducer (43) is rotationally connected to the driving shaft (6); and the driving shaft (6) passes through the transmission plate (3) and extends to the interior of the sleeve (1).

3. The oil and gas concentration sampling and detection device for an external floating roof storage tank according to claim 1 is characterized in that: The detection module (12) comprises a hollow seat (13), an air pump (15), a detector (17) and a solenoid valve (18); the hollow seat (13) is processed with an air inlet duct (14) and an exhaust duct (16); the air inlet duct (14) is connected to the exhaust duct (16) above via the air pump (15); the hollow seat (13) is internally installed with the air pump (15), the detector (17) and the solenoid valve (18) arranged in sequence from bottom to top; the head of the detector (17) and the solenoid valve (18) are located in the exhaust duct (16).

4. The oil and gas concentration sampling and detection device for an external floating roof storage tank according to claim 1 is characterized in that: The control unit (19) is electrically connected to the air pump (15), the lift (2), the solenoid valve (18) and the drive motor (41), and the control unit (19) is electrically connected to the detector (17) and the display screen (20).

5. The oil and gas concentration sampling and detection device for an external floating roof storage tank according to claim 1 is characterized in that: The detection module (12) is an oil and gas detector.

6. The oil and gas concentration sampling and detection device for an external floating roof storage tank according to claim 1 is characterized in that: The connecting plate (10) and the detection module (12) are connected via a bracket (11), and the bracket (11) is composed of a cylindrical rod and a square block.

7. The sampling and detection method of the oil and gas concentration sampling and detection device of the external floating roof storage tank according to claim 1 is characterized in that: The method comprises the following steps: using a control unit (19) to manipulate the movement of the lift (2), the lift (2) drives the transmission plate (3) to move upward and downward, and through the transmission action of the drive shaft (6) and the connecting plate (10), the height of the detection module (12) changes, so that the oil and gas concentration at different positions can be detected; operating the control unit (19) to operate the drive device (4), drive the drive shaft (6) to rotate, and the drive shaft (6) drives the connecting plate (10) and the detection module (12) to swing, and further adjusting the position of the detection module (12), so that the oil and gas concentration at different positions at a certain height can be detected; the concentration detection data will be transmitted to the control unit (19), and converted into image information after processing and analysis; the detection module (12) absorbs a part of the oil and gas, and the other part of the oil and gas continues to move and reaches the oil and gas recovery module (9) for adsorption treatment, thereby reducing air pollution and improving the recovery rate of the oil and gas; the movable sleeve (8) is regularly removed from the support plate (7) to process the oil and gas absorbed by the oil and gas recovery module (9).

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