Quantitative sampling device for petroleum detection

Abstract

The utility model relates to the technical field of petroleum detection, and particularly discloses a quantitative sampling device for petroleum detection, which comprises a base, a placing groove is arranged on the top surface of the base, a sampling bottle is arranged in the placing groove, support frames are respectively fixed at two ends of the top surface of the base, a connecting frame with an inverted U-shaped structure is jointly hinged on the two support frames, and the connecting frame is connected with a sampling bottle. A positioning ring capable of moving up and down and abutting against the outer wall of the sampling bottle is arranged in the connecting frame, a lifting rod capable of moving up and down is arranged on the top face, corresponding to a bottle opening of the sampling bottle, of the connecting frame in a penetrating mode, and a bottle plug matched with the bottle opening of the sampling bottle is fixedly arranged on the bottom face of the lifting rod. And a compression spring is wound on the lifting rod between the bottle plug and the connecting frame. In the using process, sampling bottles with different heights can be conveniently and quickly positioned, so that the using range of the device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum detection, in particular to a quantitative sampling device for petroleum detection. Background Art

[0002] During oilfield production, oil well sampling and analysis is essential, requiring the extraction of crude oil samples for analysis. For example, analysis can be performed on the crude oil's water content, sand content, wax content, viscosity, and freezing point. Both water and sand content can negatively impact the flow rate of oil wells, so regular sampling and analysis is required at each well to ensure timely implementation of sand and water control measures to prevent disruptions to oilfield production.

[0003] When sampling oil in an oil storage tank, the traditional sampling method usually involves placing a quantitative bottle on a base, with an inverted U-shaped support frame fixedly connected to the top surface of the base. The sampling bottle is positioned by a detachable arc ring on the support frame, and then the support frame is sent into the oil storage tank by a pull rope. A bottle stopper that can move up and down is provided on the top surface of the support frame. Finally, another pull rope is used to control the up and down movement of the bottle stopper to separate or close the bottle stopper from the sampling bottle, thereby completing the sampling operation.

[0004] During use, the detachable arc-shaped ring of the above structure is fixedly arranged, so that sampling bottles of different heights cannot be effectively positioned, thereby reducing the scope of use of the device. Utility Model Content

[0005] The technical problem to be solved by the utility model is that sampling bottles of different heights cannot be selectively adjusted and placed, resulting in a reduction in the use range of the device.

[0006] To solve the above-mentioned problem, the technical solution of the present utility model is as follows: a quantitative sampling device for petroleum detection, comprising a base, a placement groove formed on the top surface of the base, a sampling bottle disposed in the placement groove, and support frames fixedly provided at both ends of the top surface of the base, a connecting frame with an inverted U-shaped structure hingedly connected to the two support frames, a positioning ring disposed in the connecting frame that is movable up and down and abuts against the outer wall of the sampling bottle;

[0007] A lifting rod that can move up and down is passed through the top surface of the connecting frame corresponding to the bottle mouth of the sampling bottle, and a bottle plug that is adapted to the bottle mouth of the sampling bottle is fixed on the bottom surface of the lifting rod. A compression spring is wound around the lifting rod between the bottle plug and the connecting frame.

[0008] Furthermore, support shafts are fixed on the opposite end faces of the two support frames, and both ends of the connecting frame are hinged on the support shafts. Internal threaded holes are respectively opened in the two support shafts, and locking nuts corresponding thereto are provided in the internal threaded holes.

[0009] Furthermore, mounting grooves are provided on the inner walls at both ends of the connecting frame along their height direction, and guide rods are fixed in the two mounting grooves, and each guide rod is slidably provided with a guide block adapted thereto, and the opposite ends of the two guide blocks are fixedly connected to the end face of the positioning ring, and abutment springs are also wound around the guide blocks and the guide rods on the top wall of the mounting groove.

[0010] Furthermore, arc-shaped frames for limiting the position of the sampling bottles are respectively provided on the front and rear sides of the two support frames.

[0011] Furthermore, mounting brackets are fixed at both ends of the top surface of the connecting frame and a pull rope 1 is provided on the mounting brackets. A connecting seat is commonly provided at the top ends of the two pull ropes 1. A through hole is opened at the central position of the connecting seat and a pull rope 2 is passed through the through hole. The bottom end of the pull rope 2 is fixedly connected to the lifting rod.

[0012] The advantages of this utility model compared with the existing technology are:

[0013] 1. Through the provision of a hinged connecting frame and the action of the mounting groove, guide rod, guide block, positioning ring and abutment spring, when placing the sampling bottle, the connecting frame can be first swung and adjusted to a horizontal state, and then the sampling bottle is placed in the placement groove on the base, and the positioning ring is pulled upward to make the connecting frame swing upward to a vertical state, and then the external force on the positioning ring is released. Under the reaction of the abutment spring, the positioning ring is sleeved on the sampling bottle, and the sampling bottle is effectively positioned, thereby meeting the positioning operation of sampling bottles of different heights, thereby improving the scope of use of the device;

[0014] 2. The cooperation of the support shaft, the internal threaded hole and the locking nut can effectively position the adjusted connecting frame, thereby improving the operation convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a first perspective structural diagram of the present invention.

[0016] Figure 2 This is a structural diagram from a second viewing angle of the present invention.

[0017] Figure 3 It is a disassembly structure diagram of the locking nut in the utility model.

[0018] As shown in the figure: 1. Base; 2. Placement slot; 3. Support frame; 4. Arc frame; 5. Connecting frame; 6. Sampling bottle; 7. Lifting rod; 8. Bottle stopper; 9. Compression spring; 10. Mounting frame; 11. Pull rope 1; 12. Connecting seat; 13. Through hole; 14. Pull rope 2; 15. Mounting slot; 16. Guide rod; 17. Guide block; 18. Positioning ring; 19. Support shaft; 20. Internal threaded hole; 21. Locking nut; 22. Abutment spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Example 1

[0021] like Figures 1 to 2 As shown, a quantitative sampling device for petroleum testing includes a base 1. A placement groove 2 is formed on the top surface of the base 1. A sampling bottle 6 is placed in the placement groove 2. The sampling bottle 6 contains a standard container and has scale lines on its outer side. Support frames 3 are fixed to both ends of the top surface of the base 1. An inverted U-shaped connecting frame 5 is hingedly connected to the two support frames 3. A positioning ring 18 is provided in the connecting frame 5, which can move up and down and abuts the outer wall of the sampling bottle 6. Under the action of the positioning ring 18, the sampling bottle 6 is positioned.

[0022] A lifting rod 7 that can move up and down is passed through the top surface of the connecting frame 5 corresponding to the bottle mouth of the sampling bottle 6, and a bottle stopper 8 that is adapted to the bottle mouth of the sampling bottle 6 is fixed on the bottom surface of the lifting rod 7. The bottle stopper 8 and the inner wall of the bottle mouth of the sampling bottle 6 are respectively frustum-shaped structures that cooperate with each other, so that the tightness of the connection between the two can be increased. A compression spring 9 is wound around the lifting rod 7 between the bottle stopper 8 and the connecting frame 5.

[0023] like Figure 2 As shown, mounting grooves 15 are respectively provided on the inner walls at both ends of the connecting frame 5 along the height direction thereof, and guide rods 16 are respectively fixed in the two mounting grooves 15, and a guide block 17 adapted thereto is respectively provided on each guide rod 16 in a sliding manner, and the opposite ends of the two guide blocks 17 are fixedly connected to the end face of the positioning ring 18, and abutment springs 22 are also wound around the guide blocks 17 and the guide rods 16 on the top wall of the mounting groove 15.

[0024] Through the above structure, the connecting frame 5 is first swung and adjusted to a horizontal state, and then the sampling bottle 6 is placed in the placement groove 2. Then, the positioning ring 18 is first moved upward, and then the connecting frame 5 is adjusted to a vertical state. The external force on the positioning ring 18 is released. Under the reaction force of the abutment spring 22, the positioning ring 18 can be tightly abutted against the outer wall of the sampling bottle 6, thereby performing positioning operations on the sampling bottles of different heights.

[0025] like Figure 1 As shown, the two support frames 3 are respectively provided with arc frames 4 on the front and rear sides for limiting the sampling bottles 6. The arc frames 4 can not only limit the sampling bottles 6, but also ensure the stability of the support frames 3 during use.

[0026] like Figure 1 As shown, mounting brackets 10 are fixed at both ends of the top surface of the connecting frame 5 and a pull rope 11 is provided on the mounting bracket 10. The top ends of the two pull ropes 11 are jointly provided with a connecting seat 12. A through hole 13 is opened in the center of the connecting seat 12 and a pull rope 2 14 is passed through the through hole 13. The bottom end of the pull rope 2 14 is fixedly connected to the lifting rod 7. Under the action of the pull rope 2 14 and the compression spring 9, the lifting rod 7 is controlled to move up and down, thereby driving the bottle stopper 8 to move up and down, and performing the opening or closing operation at the bottle mouth of the sampling bottle 6.

[0027] Example 2

[0028] Based on the first embodiment, Figure 3 As shown, the specific structure for positioning the connecting frame 5 is as follows:

[0029] Support shafts 19 are fixed on the opposite end faces of the two support frames 3, and the two ends of the connecting frame 5 are hinged on the support shafts 19. Internal threaded holes 20 are respectively opened in the two support shafts 19, and locking nuts 21 that are compatible with them are provided in the internal threaded holes 20. With the cooperation of the locking nuts 21 and the internal threaded holes 20, the nut ends of the locking nuts 21 can be tightly abutted against the outer wall of the connecting frame 5, thereby effectively positioning the connecting frame 5.

[0030] In specific use, first loosen the locking nuts 21 at both ends, then swing the connecting frame 5 downward to a horizontal state, place the sampling bottle 6 in the placement groove 2, then move the positioning ring 18 upward first, and then adjust the connecting frame 5 to a vertical state, release the external force on the positioning ring 18, and under the reaction force of the abutment spring 22, the positioning ring 18 can be tightly abutted against the outer wall of the sampling bottle 6, and finally tighten the locking nut 21 to effectively position the connecting frame 5, thereby positioning the sampling bottles 6 at different heights, thereby improving the scope of use of the device.

[0031] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A quantitative sampling device for petroleum detection, comprising a base (1), a placement groove (2) is provided on the top surface of the base (1), a sampling bottle (6) is provided in the placement groove (2), and support frames (3) are fixedly provided at both ends of the top surface of the base (1), characterized in that: A connecting frame (5) with an inverted U-shaped structure is hingedly connected to the two supporting frames (3), and a positioning ring (18) is provided in the connecting frame (5) and is movable up and down and abuts against the outer wall of the sampling bottle (6); A lifting rod (7) that can move up and down is provided on the top surface of the connecting frame (5) corresponding to the bottle mouth of the sampling bottle (6), a bottle plug (8) that matches the bottle mouth of the sampling bottle (6) is fixed on the bottom surface of the lifting rod (7), and a compression spring (9) is wound on the lifting rod (7) between the bottle plug (8) and the connecting frame (5).

2. A quantitative sampling device for petroleum detection according to claim 1, characterized in that: Support shafts (19) are fixedly provided on opposite end surfaces of the two support frames (3), and both ends of the connecting frame (5) are hingedly connected to the support shafts (19). Internal threaded holes (20) are respectively provided in the two support shafts (19), and locking nuts (21) matched therewith are provided in the internal threaded holes (20).

3. A quantitative sampling device for petroleum detection according to claim 1 or 2, characterized in that: Mounting grooves (15) are respectively provided on the inner walls at both ends of the connecting frame (5) along the height direction thereof, guide rods (16) are respectively fixedly provided in the two mounting grooves (15), and each guide rod (16) is respectively provided with a guide block (17) adapted thereto in a sliding manner, the opposite ends of the two guide blocks (17) are fixedly connected to the end surface of a positioning ring (18), and abutment springs (22) are also wound around the guide blocks (17) and the guide rods (16) on the top walls of the mounting grooves (15).

4. A quantitative sampling device for petroleum detection according to claim 1, characterized in that: The two support frames (3) are also provided with arc-shaped frames (4) on the front and rear sides for limiting the position of the sampling bottles (6).

5. A quantitative sampling device for petroleum detection according to claim 1, characterized in that: The two ends of the top surface of the connecting frame (5) are respectively fixed with mounting frames (10) and a pull rope (11) is provided on the mounting frames (10); the top ends of the two pull ropes (11) are jointly provided with a connecting seat (12); a through hole (13) is opened at the central position of the connecting seat (12) and a pull rope (14) is passed through the through hole (13); the bottom end of the pull rope (14) is fixedly connected to the lifting rod (7).

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