An oil well gas analysis device with continuous quantitative detection function

Abstract

The present invention discloses an oil well gas analysis device with continuous quantitative detection, which relates to the field of gas detection technology. The device comprises a collecting tube, a protective shell, and a gas analysis module. A closed groove ring is fixedly mounted on the protective shell, a rotating gear ring is rotatably mounted on the closed groove ring, the rotating gear ring and the closed groove ring are arranged in the collecting tube, a plurality of clamping claws are rotatably mounted on the closed groove ring, a storage tube is provided on the clamping claw, a storage tank is fixedly mounted on the storage tube, a glass lens is fixedly mounted on one end of the storage tank, and a detection instrument in the gas analysis module can perform optical analysis on the gas in the storage tank through the glass lens. By allowing the detected gas to be stored separately in the storage tank for detection, the device can not only retain samples of the gas, but also further adjust the pressure change of the gas in the storage tank, thereby performing multi-faceted detection, thereby improving the detection accuracy of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detection, in particular to an oil well gas analysis device capable of continuous quantitative detection. Background Art

[0002] Oil well gas detection plays a vital role in the process of oil and natural gas extraction. It is not only directly related to production safety and environmental protection, but also has important significance for improving resource utilization, optimizing production processes and reducing operating costs. With the acceleration of industrialization and the continuous growth of energy demand, traditional oil and gas resources have been developed in large quantities, and the accompanying oil well gas treatment problems have become increasingly prominent. These gases may contain hydrocarbon gases such as methane, ethane, and propane, and non-hydrocarbon gases such as hydrogen, oxygen, nitrogen, and hydrogen sulfide. Their composition is complex and changeable, and they are toxic and explosive to a certain extent. Therefore, accurate and rapid detection of oil well gas composition and its concentration is crucial to ensuring production safety, achieving environmentally friendly emissions and improving economic benefits.

[0003] At present, oil well gas detection mainly relies on equipment such as gas detectors and gas chromatographs. These devices can perform qualitative and quantitative analysis of oil well gas, but generally have problems such as complex operation, long time consumption, and high cost. In addition, traditional gas detection methods often require samples to be sent to the laboratory for analysis, which to a certain extent limits its application in real-time monitoring and rapid on-site detection. At the same time, if the gas fluctuates during gas detection, it will also affect the gas detection results. Summary of the Invention

[0004] In view of the above technical problems, the present invention proposes the following technical solutions:

[0005] A device for analyzing oil well gas with continuous quantitative detection comprises a collecting tube and a protective shell, the collecting tube is fixedly connected to the protective shell, a control screen is fixedly mounted on one side of the protective shell, a gas analysis module is fixedly mounted on the side of the protective shell provided with the control screen, a closed groove ring is fixedly mounted on the protective shell, a rotating ring gear is rotatably mounted on the closed groove ring, the rotating ring gear and the closed groove ring are arranged in the collecting tube, a plurality of clamping claws are rotatably mounted on the closed groove ring, the clamping claws are symmetrically arranged on the rotating ring gear, a storage tube is arranged between the symmetrically arranged clamping claws, a storage tank is fixedly mounted on the storage tube, a glass lens is fixedly mounted on one end of the storage tank, and a detection instrument in the gas analysis module can perform optical analysis on the gas in the storage tank through the glass lens.

[0006] Furthermore, a sealing spring is fixedly installed in the storage tube, and a sealing block is fixedly installed on the other end of the sealing spring. The sealing block moves in the storage tube, and the sealing block can cooperate with the inner wall of the storage tube to close the storage tank. A sealing spring is fixedly installed on the outer wall of the storage tube, and a closing slider is fixedly installed on the other end of the closing spring. The closing slider is slidably connected to the outer wall of the storage tube, and the storage tube contacts the sealing groove ring. After the sealing groove ring contacts the storage tube, it is used to seal the storage tank. A sliding groove is provided on the storage tube, and the sealing groove ring is fixedly connected to the air outlet valve. An extrusion protrusion is fixedly installed on the end of the air outlet valve close to the storage tube. The extrusion protrusion is arc-shaped and can pass through the sliding groove on the storage tube. The extrusion protrusion is used to squeeze the sealing block to make the sealing block move away from the air outlet valve.

[0007] Furthermore, a gas processing box is fixedly installed on the protective shell, an air inlet pipe is provided at one end of the gas processing box, and an air outlet pipe is provided at the other end of the gas processing box. A transfer cylinder for transferring gas is fixedly installed in the protective shell, an extrusion cylinder is fixedly installed in the protective shell, an air intake valve is fixedly installed on the extrusion cylinder, and the other end of the air intake valve is connected to the transfer cylinder.

[0008] Furthermore, an exhaust valve is fixedly installed on the extrusion cylinder, and the connection position between the exhaust valve and the extrusion cylinder is set at an end away from the exhaust valve. A switching cylinder is fixedly installed on the outer wall of the extrusion cylinder, and a switch rod is fixedly installed on the movable end of the switching cylinder. One end of the switch rod is slidingly connected to the exhaust valve, and the other end of the switch rod is slidingly connected to the exhaust valve. The switch rod closes the exhaust valve in the initial state, and the switch rod can close the exhaust valve after sliding.

[0009] Furthermore, a main pressure plate is slidably installed in the extrusion cylinder, and a pressure screw is rotatably installed in the extrusion cylinder. The pressure screw is connected to the main pressure plate through threads.

[0010] Compared with the prior art, the present invention has the following advantages: (1) by allowing the gas to be detected to be stored separately in a storage tank for detection, the present device can not only retain samples of the gas, but also further adjust the pressure change of the gas in the storage tank, thereby performing multi-faceted detection and improving the detection accuracy of the present device; (2) by allowing the gas to be purified through a gas treatment box and then settled and stabilized in an extrusion cylinder before detection, the present device can not only avoid changes in the detection results caused by gas fluctuations, but also reduce the content of particles and debris carried in the gas, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0012] Figure 2 This is a schematic diagram of the cross-section structure of the collecting tube and protective shell of the present invention.

[0013] Figure 3 It is a schematic diagram of the cross-section structure of the rotating cylinder, extrusion cylinder, air inlet valve and air outlet valve in the present invention.

[0014] Figure 4 This is a schematic diagram of the cross-section structure of the air intake valve, air outlet valve, rotating gear ring, and closed groove of the present invention.

[0015] Figure 5 This is a schematic diagram of the structure of the clamping claw of the present invention.

[0016] Figure 6 This is a schematic diagram of the cross-section structure of the air outlet valve, rotating gear ring, sealing groove ring, storage tank, and storage pipe of the present invention.

[0017] Figure 7 This is a schematic diagram of the cross-section structure of the gas outlet valve, closed groove ring, storage tank, and storage pipe of the present invention.

[0018] Figure 8 This is a schematic diagram of the cross-section structure of the collecting tube and guard plate of the present invention.

[0019] Reference numerals: 101 - collection tube; 102 - guard plate; 103 - protective shell; 104 - gas processing box; 105 - control screen; 106 - gas analysis module; 107 - air inlet pipe; 108 - air outlet pipe; 109 - rotating tube; 110 - pressure stabilizing plate; 111 - pressure stabilizing spring; 201 - main motor; 202 - main gear; 203 - main pressure plate; 204 - pressure screw; 205 - extrusion tube ;206-inlet valve;207-exhaust valve;208-switch rod;209-switch cylinder;301-rotating motor;302-rotating screw;303-rotating ring gear;304-sealed groove ring;305-clamping claw;306-storage tank;307-storage tube;308-sealed spring;309-sealed block;310-extrusion protrusion;311-sealed slider;312-sealed spring. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] like Figures 1 to 3As shown, a device for analyzing oil well gas with continuous quantitative detection includes a collecting tube 101 and a protective shell 103. The collecting tube 101 is fixedly connected to the protective shell 103. A control screen 105 is fixedly installed on one side of the protective shell 103. A gas analysis module 106 is fixedly installed on the side of the protective shell 103 provided with the control screen 105. A gas processing box 104 is fixedly installed on the protective shell 103. An air inlet pipe 107 is provided at one end of the gas processing box 104, and an air outlet pipe 108 is provided at the other end of the gas processing box 104. A transfer tube 109 for transferring gas is fixedly installed in the protective shell 103, a pressure stabilizing spring 111 is fixedly installed in the transfer tube 109, a pressure stabilizing plate 110 is fixedly installed on one end of the pressure stabilizing spring 111, and the pressure stabilizing plate 110 is fixedly connected to the inner wall of the transfer tube 109.

[0022] like Figures 2 to 3 As shown, an extrusion cylinder 205 is fixedly installed in the protective shell 103, and an air intake valve 206 is fixedly installed on the extrusion cylinder 205. The other end of the air intake valve 206 is connected to the transfer cylinder 109. A main pressure plate 203 is slidably installed in the extrusion cylinder 205. A pressure screw 204 is also rotatably installed in the extrusion cylinder 205. The pressure screw 204 is connected to the main pressure plate 203 by threads. A main motor 201 is fixedly installed in the protective shell 103, and a motor gear is fixedly installed on the output shaft of the main motor 201. A main gear 202 is fixedly installed on the pressure screw 204. The main gear 202 is arranged outside the extrusion cylinder 205, and the main gear 202 is engaged with the motor gear.

[0023] like Figures 2 to 4 As shown, an outlet valve 207 is fixedly mounted on the extrusion cylinder 205, and the connection position between the outlet valve 207 and the extrusion cylinder 205 is set at an end away from the inlet valve 206. A switch cylinder 209 is fixedly mounted on the outer wall of the extrusion cylinder 205, and a switch rod 208 is fixedly mounted on the movable end of the switch cylinder 209. One end of the switch rod 208 is slidingly connected to the inlet valve 206, and the other end of the switch rod 208 is slidingly connected to the outlet valve 207. The switch rod 208 closes the outlet valve 207 in the initial state, and the switch rod 208 can close the inlet valve 206 after sliding. The sealing effect of the switch rod 208 on the outlet valve 207 and the inlet valve 206 can be achieved by rubber interference fit or by other flexible components.

[0024] like Figures 3 to 7As shown, a rotating motor 301 is fixedly mounted on the protective shell 103, and a rotating screw 302 is fixedly mounted on the output shaft of the rotating motor 301, and the rotating screw 302 is arranged in the collecting barrel 101, and a closed groove ring 304 is fixedly mounted on the protective shell 103, and a rotating ring gear 303 is rotatably mounted on the closed groove ring 304, and the rotating ring gear 303 is engaged with the rotating screw 302. After the rotating motor 301 is started, the rotating ring gear 303 is driven to rotate on the closed groove ring 304, and the rotating ring gear 303 and the closed groove ring 304 are arranged in the collecting barrel 101, and a plurality of clamping claws 305 are rotatably mounted on the closed groove ring 304, and a clamping torsion spring is fixedly mounted on the clamping claw 305, and the other end of the clamping torsion spring is arranged on the rotating ring gear 303, and the clamping claw 305 and the clamping torsion spring are symmetrically arranged on the rotating ring gear 303.

[0025] like Figures 3 to 8 As shown, a storage tube 307 is provided between the symmetrically arranged clamping claws 305, and a storage tank 306 is fixedly mounted on the storage tube 307. A glass lens is fixedly mounted on one end of the storage tank 306. The detection instrument in the gas analysis module 106 can perform optical analysis on the gas in the storage tank 306 through the glass lens. The clamping claws 305 are used to clamp the storage tube 307 and the storage tank 306. The clamping claws 305 will indirectly fix the storage tank 306 and the storage tube 307 on the rotating ring gear 303. When the rotating ring gear 303 rotates, the storage tube 307 and the storage tank 306 will slide on the closed groove ring 304. A sealed spring 308 is fixedly mounted in the storage tube 307, and a sealed block 309 is fixedly mounted on the other end of the sealed spring 308. The sealed block 309 moves in the storage tube 307, and the sealed block 309 can cooperate with the inner wall of the storage tube 307 to seal the storage tank 306.

[0026] like Figures 3 to 8 As shown, a closing spring 312 is fixedly installed on the outer wall of the storage tube 307, and a closing slider 311 is fixedly installed on the other end of the closing spring 312. The closing slider 311 is slidably connected to the outer wall of the storage tube 307, and the storage tube 307 is in contact with the closing groove ring 304. After the closing groove ring 304 contacts the storage tube 307, it is used to close the storage tank 306. A sliding groove is provided on the storage tube 307, and the closing groove ring 304 is fixedly connected to the outlet valve 207. An extrusion protrusion 310 is fixedly installed on the end of the outlet valve 207 close to the storage tube 307. The extrusion protrusion 310 is arc-shaped and can pass through the sliding groove on the storage tube 307. The extrusion protrusion 310 is used to squeeze the sealed block 309 to move the sealed block 309 away from the outlet valve 207.

[0027] Working principle: When the device is in use, it is connected to an external gas input pipeline or a gas transfer device through the air inlet pipe 107. The gas then enters the gas treatment box 104 through the air inlet pipe 107, and the gas treatment box 104 will perform a simple dehydration treatment on the gas. The gas then flows out of the gas treatment box 104 from the air outlet pipe 108 of the gas treatment box 104, and the gas will then pass through the transfer cylinder 109 and the air inlet valve 206 into the extrusion cylinder 205. The gas will then accumulate in the extrusion cylinder 205, and the process of accumulation in the extrusion cylinder 205 is essentially to allow the gas to be stably precipitated in the extrusion cylinder 205.

[0028] When the gas in the extrusion cylinder 205 reaches a certain pressure or a predetermined time, the main motor 201 can be started, and the main motor 201 drives the main pressure plate 203 to move away from the main motor 201 through the pressure screw 204, thereby squeezing the gas in the extrusion cylinder 205. At this time, the switch cylinder 209 should also be started synchronously, and the switch cylinder 209 drives the switch rod 208 to move, so that the channel on the outlet valve 207 is opened, and then the channel of the inlet valve 206 is closed. At this time, the gas will be squeezed into the storage tank 306.

[0029] After the gas enters the storage tank 306, it will be stored in the storage tank 306 with a certain pressure. If it is not necessary to keep the gas at a certain pressure, the change of gas pressure can be controlled by controlling the switch of the gas outlet valve 207 and the movement of the main pressure plate 203. After the gas in the storage tank 306 is stored, the rotating motor 301 can be started to rotate the rotating gear ring 303, and then the storage tank 306 and the storage tube 307 can be slid on the closed groove ring 304. The purpose of this is to make the sealed block 309 disengage from the extrusion protrusion 310. After the block 309 is out of contact with the extrusion protrusion 310, the sealing block 309 will seal the storage tube 307, and the gas in the storage tank 306 will be retained. During this process, in order to ensure the sealing of the connection between the storage tube 307 and the outlet valve 207, the channel of the storage tube 307 will also be closed. At the same time, the closing sliders 311 on both sides of the storage tube 307 will also slide up and down along the arc shape of the extrusion protrusion 310. The closing sliders 311 here are provided to ensure the airtightness of the storage tube 307 and the outlet valve 207 after docking.

[0030] When the next storage tube 307 rotates to the extrusion protrusion 310 and the outlet valve 207, the extrusion protrusion 310 will first contact the closing slider 311 on the outer wall of the storage tube 307, and then the closing slider 311 will move away from the outlet valve 207. Figure 7As shown in the figure, as the arc on the extrusion protrusion 310 slides, when the sealing block 309 contacts the extrusion protrusion 310, the extrusion protrusion 310 will squeeze the sealing block 309, allowing the sealing block 309 to open the channel on the storage tube 307. At this time, the gas can enter the storage tank 306 through the storage tube 307.

[0031] When the 06 filled with gas rotates ninety degrees, it will move to the gas analysis module 106. The gas analysis module 106 emits a detection laser to detect the gas in the storage tank 306 through the spectrum. The detected gas can be manually opened by opening the protective plate 102 and then by prying the clamping claw 305 to disengage the clamping claw 305 from the storage tank 306. Then, the storage tank 306 and the storage tube 307 are taken out from the closed groove ring 304 and the collection tube 101.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A device for continuously and quantitatively detecting oil well gas, comprising a collecting tube (101) and a protective shell (103), wherein the collecting tube (101) is fixedly connected to the protective shell (103), a control screen (105) is fixedly mounted on one side of the protective shell (103), and a gas analysis module (106) is fixedly mounted on the side of the protective shell (103) where the control screen (105) is provided, characterized in that: A closed groove ring (304) is fixedly mounted on the protective shell (103), a rotating ring gear (303) is rotatably mounted on the closed groove ring (304), the rotating ring gear (303) and the closed groove ring (304) are arranged in the collecting cylinder (101), a plurality of clamping claws (305) are rotatably mounted on the closed groove ring (304), the clamping claws (305) are symmetrically arranged on the rotating ring gear (303), a storage tube (307) is arranged on the clamping claws (305), a storage tank (306) is fixedly mounted on the storage tube (307), a glass lens is fixedly mounted on one end of the storage tank (306), and the detection instrument in the gas analysis module (106) can perform optical analysis on the gas in the storage tank (306) through the glass lens; A sealing spring (308) is fixedly installed in the storage tube (307), and a sealing block (309) is fixedly installed on the other end of the sealing spring (308). The sealing block (309) moves in the storage tube (307). The sealing block (309) can cooperate with the inner wall of the storage tube (307) to seal the storage tank (306). A sealing spring (312) is fixedly installed on the outer wall of the storage tube (307). The other end of the sealing spring (312) is fixedly installed with a sealing slider (311). The sealing slider (311) is slidably connected to the outer wall of the storage tube (307). The storage tube (307) is connected to the sealing groove ring (306). 04), the sealing groove ring (304) contacts the storage tube (307) to seal the storage tank (306), the storage tube (307) is provided with a sliding groove, the sealing groove ring (304) is fixedly connected to the outlet valve (207), and the outlet valve (207) is fixedly installed with an extrusion protrusion (310) at one end close to the storage tube (307), the extrusion protrusion (310) is arc-shaped, the extrusion protrusion (310) can pass through the sliding groove on the storage tube (307), and the extrusion protrusion (310) is used to squeeze the sealing block (309) to move the sealing block (309) away from the outlet valve (207); The closing slide block (311) closes the sliding groove on the storage tube (307) after the storage tube (307) is docked with the air outlet valve (207).

2. The oil well gas analysis device capable of continuous quantitative detection according to claim 1, characterized in that: A gas processing box (104) is fixedly mounted on the protective shell (103); an air inlet pipe (107) is provided at one end of the gas processing box (104); an air outlet pipe (108) is provided at the other end of the gas processing box (104); a transfer cylinder (109) for transferring gas is fixedly mounted in the protective shell (103); an extrusion cylinder (205) is fixedly mounted in the protective shell (103); an air inlet valve (206) is fixedly mounted on the extrusion cylinder (205); and the other end of the air inlet valve (206) is connected to the transfer cylinder (109).

3. The oil well gas analysis device capable of continuous quantitative detection according to claim 2, characterized in that: An outlet valve (207) is fixedly mounted on the extrusion cylinder (205), and the connection position between the outlet valve (207) and the extrusion cylinder (205) is set at an end away from the inlet valve (206). A switch cylinder (209) is fixedly mounted on the outer wall of the extrusion cylinder (205), and a switch rod (208) is fixedly mounted on the movable end of the switch cylinder (209). One end of the switch rod (208) is slidably connected to the inlet valve (206), and the other end of the switch rod (208) is slidably connected to the outlet valve (207). In the initial state, the switch rod (208) closes the outlet valve (207), and after sliding, the switch rod (208) can close the inlet valve (206).

4. The oil well gas analysis device capable of continuous quantitative detection according to claim 2, characterized in that: A main pressure plate (203) is slidably mounted in the extrusion cylinder (205), and a pressure screw rod (204) is rotatably mounted in the extrusion cylinder (205). The pressure screw rod (204) is connected to the main pressure plate (203) via threads.

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