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Intelligent regulating valve throttling and pressure reducing device and intelligent regulating valve

A technology of intelligent adjustment and decompression device, which is applied in the direction of valve device, wellbore/well valve device, valve operation/release device, etc. Closure, valve core is easy to be eroded and damaged, etc., to achieve the effect of no maintenance of the structure, stable driving process and good sealing performance

Pending Publication Date: 2022-03-29
CHINA UNIV OF PETROLEUM (BEIJING) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing wellsite intelligent control valve for intermittent wells has a throttling and decompression device that is a needle-shaped spool, and the electric actuator drives the valve stem to act on the needle-shaped spool to adjust the opening of the on-off valve and the control valve. To a certain extent, the downstream pressure or flow can be adjusted, but the adjustment of the needle valve type throttling and decompression device is relatively small, and the needle valve core is angled and easy to be eroded and damaged. Long-term use has a great impact on the seal and cannot be adjusted accurately. Downstream pressure; the needle valve is a direct-acting opening method, the opening torque is large, and a large power must be used to realize the opening of the valve; and the adjustment fluctuation range is large. When the overpressure setting value is exceeded, the emergency shut-off valve will be closed, affecting normal production

Method used

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  • Intelligent regulating valve throttling and pressure reducing device and intelligent regulating valve
  • Intelligent regulating valve throttling and pressure reducing device and intelligent regulating valve
  • Intelligent regulating valve throttling and pressure reducing device and intelligent regulating valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 1-2 As shown, an intelligent regulating valve throttling and decompression device includes a valve body 1 with a cross-shaped hole, the left and right ends of the horizontal hole 11 are respectively connected to fluid pipelines, and the vertical hole 12 includes a rectangular slideway 121; It includes a valve core 2, an upper valve stem 22 and a lower valve stem 23 arranged on the rectangular slideway 121. The valve core 2 is a cuboid slide plate type, and a number of horizontal throttling valves are provided corresponding to the position of the horizontal hole 11. hole 211; the upper valve rod 22 and the lower valve rod 23 are fixedly connected to the upper and lower ends of the valve core 2, and the valve core 2 is driven by the upper valve rod 22 and / or the lower valve rod 23 Move up and down on the rectangular slideway 121; when the valve core 2 moves to a certain position along the rectangular slideway 121, several horizontal throttle holes 211 are op...

Embodiment 2

[0051] As a preference, different from the above-mentioned embodiment, such as figure 1 As shown, the left end of the horizontal hole 11 is connected to the high-pressure pipeline (or upstream pipeline), and the right end is connected to the low-pressure pipeline (or downstream pipeline), figure 1 The direction indicated by the arrow is the direction of fluid flow; the left side horizontal hole 111 is close to the position of the valve core 2 and is provided with an annular high-pressure side valve seat 3 whose axis coincides with the horizontal hole 11, and the high-pressure side valve seat 3 Slightly protruding from the right end face of the left horizontal hole 111; the right horizontal hole 112 is provided with a cylindrical low-pressure side valve seat 4 whose axis coincides with the horizontal hole 11 at a position close to the valve core 2. The low-pressure side valve seat 4 protrudes slightly from the left end face of the right horizontal hole 112, and the left side of...

Embodiment 3

[0059] As a preference, different from the above-mentioned embodiments, in the intelligent regulating valve throttling and decompression device of the present invention, the high-pressure side valve seat 3 is flat with the right end surface of the left horizontal hole 111; the low-pressure side valve seat 4 is slightly protruded The left end surface of the right side horizontal hole 112. At this time, the slideway includes the right end surface of the high-pressure side valve seat 3 and the left end surface of the low-pressure side valve seat 4 . The end surface of the high-pressure side valve seat 3 in contact with the valve core 2 and / or the end surface of the low-pressure side valve seat 4 in contact with the valve core 2 is a sealing surface, and the sealing surface is a lapped surface. Welding STL hard alloy, good sealing performance, wear resistance, erosion resistance.

[0060] Alternatively, the high pressure side valve seat 3 is flush with the right end surface of th...

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Abstract

The invention discloses an intelligent regulating valve throttling and pressure reducing device and an intelligent regulating valve. The intelligent regulating valve throttling and pressure reducing device comprises a valve body and a cuboid sliding plate type valve element. The valve element is driven by the upper valve rod and / or the lower valve rod to move up and down on a rectangular sliding way arranged on the valve body. When the valve element moves to a certain position, a plurality of horizontal throttling holes communicated with the left horizontal hole and the right horizontal hole are formed in the positions, corresponding to the horizontal holes, of the valve element. A driving element of a traditional intelligent regulating valve needs to overcome the positive pressure difference from a high-pressure pipeline and a low-pressure pipeline to do work when the traditional intelligent regulating valve is used for throttling and decompressing, energy consumption is large, and according to the intelligent regulating valve throttling and decompressing device, a valve element is of a cuboid sliding plate type and slides up and down in a valve body; when the valve core works, the friction force between the valve core and the slide way is overcome to do work, so that the driving force is greatly reduced, and the driving process of the valve core is more stable.

Description

technical field [0001] The invention relates to an intelligent regulating valve throttling and decompression device and an intelligent regulating valve, in particular to a large pressure difference intelligent regulating valve throttling device and an intelligent regulating valve applied to intermittent wells. Background technique [0002] The existing wellsite intelligent control valve for intermittent wells has a throttling and decompression device that is a needle-shaped spool, and the electric actuator drives the valve stem to act on the needle-shaped spool to adjust the opening of the on-off valve and the control valve. To a certain extent, the downstream pressure or flow can be adjusted, but the adjustment of the needle valve type throttling and decompression device is relatively small, and the needle valve core is angled and easy to be eroded and damaged. Long-term use has a great impact on the seal and cannot be adjusted accurately. Downstream pressure; the needle va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/02F16K3/20F16K3/314F16K27/04F16K27/08F16K31/04F16K31/05F16K31/50F16K31/53F16K47/04E21B34/00
CPCF16K3/0209F16K3/314F16K3/20F16K27/044F16K27/08F16K31/047F16K31/50F16K31/53F16K31/05F16K47/04E21B34/00
Inventor 顾岱鸿门成全王力吕占芯乔义明
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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