Clear water controlling device for high-energy mixer and high-energy mixer

Abstract

A clear water control device of a high energy mixer, and a high energy mixer. The clear water control device comprises a mounting base (1), a straight line actuator (3), a hinge shaft (4), a rocker arm (8), a lead screw (5), a threaded shaft (6) and a valve rod (9). The mounting base (1) is hinge-connected with a fixing seat (12) of the straight line actuator (3). The hinge shaft (4) is inserted in a middle shaft hole of the mounting base (1). One end of the lead screw (5) is fixed on the hinge shaft (4). The threaded shaft (6) sleeves the middle part of the lead screw (5). The threaded shaft (6) is inserted in a middle hole of the rocker arm (8). The upper end of the rocker arm (8) is hinge-connected with the valve rod (9). The lower end of the rocker arm (8) is hinge-connected with a push rod (11) of the straight line actuator (3). A through hole is arranged at the junction of the threaded shaft (6) and the lead screw (5). A pin (10) is arranged in the through hole. The automatic precision control of the amount of feed of the valve rod (9) is achieved, so that the slurry mixing effect of the high energy mixer is better than that in the prior art.

Description

technical field [0001] The invention relates to a high-energy mixer for cementing equipment and mud-mixing equipment used in oil and gas fields, in particular to a high-energy mixer clear water control device and a high-energy mixer. Background technique [0002] In the process of cementing operations in oil and gas fields, there are strict requirements on the control of cement slurry density. As one of the core components of cementing equipment, the high-energy mixer is directly related to the cementing quality. The traditional single-variable high-energy mixer that uses manual valves to control the flow of clean water is completed by the operator adjusting the size of the valve. The flow of clean water can only be adjusted based on the experience and intuition of the operator, so it is difficult to ensure the density of the cement slurry. And because the fluctuation of cement slurry density may affect the quality of cementing, which in turn will affect the productivity of ...

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Problems solved by technology

[0003] At present, most of the clear water control mechanisms of double-variable high-energy mixers at home and abroad adopt a hydraulic drive method. For example, the high-energy mixer disclosed in Chinese patent CN 200620095469 belongs to this kind of double-variable mixer scheme. This type of control method uses a flow regulating plate structure to control the water volume. Although it has made great progress compared with manual control, there are still the following defects: First, due to the hydraulic drive mode, it is greatly affected by the ambient temperature and the instability of the hydraulic system, so it cannot achieve very precise control; There are many and complicated structural parts, the sealing surface of the clean water injection is easy to cause wear, and the number of wearing parts such as the mixer sealing ring is large, which brings inconvenience to daily maintenance and maintenance. In addition, the sealing surface is easy to freeze when it is used in winter. It is convenient for on-site operation and use; besides, when the driving mechanism fails, manual adjustment cannot achieve convenient and more accurate control

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