Throttling mechanism of plug valve for oil drilling and production

Abstract

The utility model relates to the technical field of petroleum drilling and production, in particular to a throttle mechanism of a plug valve for petroleum drilling and production, which comprises a valve seat, a valve body is arranged at the top of the valve seat, and two ends of the valve body are respectively connected with a first flange plate and a second flange plate. A valve element is arranged in the valve body, a through-flow hole channel facilitating flowing of a medium is formed in the valve element, a flow guide groove capable of guiding flowing of the medium is formed in the inner side of the through-flow hole channel, and a first throttling orifice plate and a second throttling orifice plate are installed at the positions, located at the two ends of the valve element, in the valve body respectively. The plug valve is provided with a structure for guiding flowing of media in the plug valve, the flow of fluid can be controlled through the throttling orifice plate, and the throttling effect can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil drilling, in particular to a throttling mechanism of an oil drill using a plug valve. Background Art

[0002] Oil drilling refers to the process of extracting underground oil resources through drilling technology, and plug valve plays a vital role in the oil drilling process. The plug valve achieves throttling by adjusting the flow area of ​​the valve core. It not only helps to ensure the safety and stability of the drilling process, but also improves the efficiency of oil and gas collection. It is one of the important components in the oil drilling process.

[0003] At present, the throttling structure of the plug valve used in oil drilling is single, lacking a structure to guide the flow of the medium in the plug valve, and not having the function of controlling the flow of the fluid using a throttling orifice plate, resulting in a poor throttling effect. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a throttling mechanism of a plug valve for an oil drill. The utility model has a structure for guiding the flow of a medium in the plug valve and can use a throttling orifice to control the flow of the fluid, thereby improving the throttling effect.

[0005] The technical solution adopted by the utility model to solve the technical problem is a throttling mechanism of a plug valve used in an oil drill, comprising a valve seat, a valve body is arranged on the top of the valve seat, and two ends of the valve body are respectively connected to a first flange and a second flange;

[0006] A valve core is arranged inside the valve body, a flow channel for facilitating the flow of the medium is opened inside the valve core, a guide groove capable of guiding the flow of the medium is opened inside the flow channel, and a first throttling orifice plate and a second throttling orifice plate are respectively installed at both ends of the valve core inside the valve body.

[0007] By adopting the above technical solution, when the plug valve is used, when the medium flows through the No. 1 throttling orifice plate or the No. 2 throttling orifice plate, the No. 1 throttling orifice plate and the No. 2 throttling orifice plate can be customized, and the flow rate of the fluid can be accurately controlled by changing the size and shape of the through hole on the No. 1 throttling orifice plate or the No. 2 throttling orifice plate to achieve a throttling effect;

[0008] When the medium flows through the flow channel inside the valve core, the guide groove inside the flow channel can guide the flow of the medium, which helps the flow of the medium.

[0009] Specifically, a valve stem is provided at the upper end of the valve body, the bottom of the valve stem is connected to the top of the valve core, and the top of the valve stem is connected to a driving hand wheel.

[0010] By adopting the above technical solution, a person can rotate the driving hand wheel to drive the valve core to rotate through the action of the valve stem, thereby controlling the opening or closing of the flow channel on the valve core.

[0011] Specifically, the interiors of the No. 1 flange and the No. 2 flange are both provided with reserved holes communicating with the flow passage.

[0012] Specifically, mounting holes are evenly arranged on the peripheries of the No. 1 flange and the No. 2 flange and outside the reserved holes.

[0013] Specifically, a bearing is embedded in the inner top of the valve body.

[0014] Specifically, the first throttling orifice plate and the second throttling orifice plate are both provided with through holes, and the first throttling orifice plate and the second throttling orifice plate are both made of galvanized steel plates.

[0015] By adopting the above technical solution, the through hole facilitates the medium to flow through the No. 1 throttling orifice plate or the No. 2 throttling orifice plate. The No. 1 throttling orifice plate and the No. 2 throttling orifice plate made of galvanized steel plate have strong corrosion resistance and can effectively prevent the steel from being corroded, thereby extending the service life of the No. 1 throttling orifice plate and the No. 2 throttling orifice plate.

[0016] Beneficial effects of the utility model:

[0017] (1) The utility model discloses an oil drill that uses a throttling mechanism of a plug valve. When the medium flows through the first throttling orifice plate or the second throttling orifice plate, the personnel can precisely control the flow rate of the fluid by changing the size and shape of the through holes on the first throttling orifice plate or the second throttling orifice plate, thereby achieving a throttling effect.

[0018] (2) The oil drill described in the utility model adopts a throttling mechanism of a plug valve, and the guide groove inside the flow channel can guide the flow of the medium, which is helpful for the flow of the medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the guide groove structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the No. 1 throttling orifice plate of the utility model.

[0024] In the figure: 1. valve seat; 2. valve body; 3. No. 1 flange; 4. No. 2 flange; 5. valve stem; 6. driving handwheel; 7. mounting hole; 8. reserved hole; 9. valve core; 10. flow channel; 11. bearing; 12. guide groove; 13. No. 1 throttling orifice; 14. No. 2 throttling orifice; 15. through hole. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] In order to improve the throttling effect, Figure 1-4 As shown, the throttling mechanism of a plug valve used in an oil drill according to the utility model comprises a valve seat 1, a valve body 2 is arranged on the top of the valve seat 1, and two ends of the valve body 2 are respectively connected to a first flange 3 and a second flange 4;

[0027] A valve core 9 is provided inside the valve body 2, and a flow channel 10 is provided inside the valve core 9 for facilitating the flow of the medium. A guide groove 12 is provided inside the flow channel 10 for guiding the flow of the medium. A first throttling orifice plate 13 and a second throttling orifice plate 14 are respectively installed at both ends of the valve core 9 inside the valve body 2.

[0028] When the plug valve is used, when the medium flows through the first throttling orifice plate 13 or the second throttling orifice plate 14, the size and shape of the through hole 15 on the first throttling orifice plate 13 or the second throttling orifice plate 14 can be changed to accurately control the flow rate of the fluid, thereby achieving a throttling effect;

[0029] The flow guide groove 12 inside the flow channel 10 can guide the flow of the medium, thereby facilitating the flow of the medium.

[0030] For example, Figure 1 , Figure 2 As shown, a valve stem 5 is provided at the upper end of the valve body 2 , the bottom of the valve stem 5 is connected to the top of the valve core 9 , and the top of the valve stem 5 is connected to a driving hand wheel 6 .

[0031] When in use, a person turns the driving hand wheel 6 to drive the valve core 9 to rotate through the action of the valve stem 5, thereby controlling the opening or closing of the flow channel 10 on the valve core 9.

[0032] For example, Figure 1 As shown, the interiors of the first flange 3 and the second flange 4 are both provided with reserved holes 8 communicating with the flow passage 10 .

[0033] When in use, the reserved hole 8 and the flow channel 10 facilitate the medium to flow through the plug valve.

[0034] For example, Figure 1 , Figure 2 As shown, the peripheries of the No. 1 flange 3 and the No. 2 flange 4 are evenly provided with mounting holes 7 outside the reserved holes 8 .

[0035] When in use, the No. 1 flange 3, the No. 2 flange 4 and the reserved hole 8 facilitate the connection of the external pipeline with the plug valve.

[0036] For example, Figure 2 As shown, a bearing 11 is embedded in the inner top of the valve body 2.

[0037] When in use, the lower end of the valve stem 5 passes through the reserved hole inside the bearing 11, and then the bearing 11 can limit and support the valve stem 5, so that the valve stem 5 can rotate smoothly.

[0038] For example, Figure 2 , Figure 4 As shown, the first throttling orifice plate 13 and the second throttling orifice plate 14 are both provided with through holes 15, and the first throttling orifice plate 13 and the second throttling orifice plate 14 are both made of galvanized steel plates.

[0039] When in use, the through hole 15 facilitates the medium to flow through the No. 1 throttling orifice plate 13 or the No. 2 throttling orifice plate 14. The No. 1 throttling orifice plate 13 and the No. 2 throttling orifice plate 14 made of galvanized steel plates have strong corrosion resistance and can effectively prevent the steel from being corroded, thereby extending the service life of the No. 1 throttling orifice plate 13 and the No. 2 throttling orifice plate 14.

[0040] When the utility model is used, when the plug valve is used, the personnel connect the external pipeline to the valve body 2 of the plug valve through the No. 1 flange 3 or the No. 2 flange 4, and the personnel rotate the driving hand wheel 6, and the valve core 9 can be driven to rotate through the action of the valve stem 5, and then the opening or closing of the flow channel 10 on the valve core 9 can be controlled;

[0041] The medium enters the valve body 2, and the personnel install the No. 1 throttling orifice plate 13 and the No. 2 throttling orifice plate 14 inside the valve body 2, and the No. 1 throttling orifice plate 13 and the No. 2 throttling orifice plate 14 are respectively located at the two ends of the valve core 9;

[0042] When the medium flows through the first throttling orifice plate 13 or the second throttling orifice plate 14, both the first throttling orifice plate 13 and the second throttling orifice plate 14 can be customized, and the flow rate of the fluid can be accurately controlled by changing the size and shape of the through hole 15 on the first throttling orifice plate 13 or the second throttling orifice plate 14;

[0043] When the medium flows through the flow channel 10 inside the valve core 9, the guide groove 12 inside the flow channel 10 can guide the flow of the medium, thereby facilitating the flow of the medium.

[0044] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A throttling mechanism of a petroleum drill using a plug valve, characterized in that: It comprises a valve seat (1), a valve body (2) is arranged on the top of the valve seat (1), and two ends of the valve body (2) are respectively connected to a first flange (3) and a second flange (4); A valve core (9) is arranged inside the valve body (2), a flow passage (10) is provided inside the valve core (9) for facilitating the flow of a medium, a flow guide groove (12) is provided inside the flow passage (10) for guiding the flow of the medium, and a first throttling orifice plate (13) and a second throttling orifice plate (14) are respectively installed at both ends of the valve core (9) inside the valve body (2).

2. The throttling mechanism of a plug valve for oil drilling according to claim 1 is characterized in that: A valve stem (5) is provided at the upper end of the valve body (2), the bottom of the valve stem (5) is connected to the top of the valve core (9), and the top of the valve stem (5) is connected to a driving hand wheel (6).

3. The throttling mechanism of a plug valve for oil drilling according to claim 1 is characterized in that: The first flange (3) and the second flange (4) are both provided with reserved holes (8) in communication with the flow passage (10).

4. The throttling mechanism of a plug valve for oil drilling according to claim 1 is characterized in that: The peripheries of the first flange (3) and the second flange (4) are evenly provided with mounting holes (7) located outside the reserved holes (8).

5. The throttling mechanism of a plug valve for oil drilling according to claim 1 is characterized in that: A bearing (11) is embedded in the inner top of the valve body (2).

6. The throttling mechanism of a plug valve for oil drilling according to claim 1 is characterized in that: The first throttling orifice plate (13) and the second throttling orifice plate (14) are both provided with through holes (15), and the first throttling orifice plate (13) and the second throttling orifice plate (14) are both made of galvanized steel plates.

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