CN102729335B - Clear water controlling device for high-energy mixer and high-energy mixer - Google Patents

Abstract

The invention relates to cementing equipment and mixing equipment for oil and gas field and provides a clear water controlling device for a high-energy mixer and the high-energy mixer. The clear water controlling device comprises a soleplate, a linear actuator, a hinge shaft, a rocking arm, a leading screw, a manual rocking handle, a thread spindle and a valve rod, and is characterized in that the soleplate is hinged with a mounting base of the linear actuator; the hinge shaft is inserted in a central shaft hole of the soleplate; one end of the leading screw is fixed on the hinge shaft; the central portion of the leading screw forms a sleeve joint with the thread spindle, which is inserted in a central hole of the rocking arm; the upper end of the rocking arm is hinged with the valve rod; the lower end of the rocking arm is hinged with a push rod of the linear actuator; a through hole is arranged at the junction of the thread spindle and the leading screw; and a pin is disposed inside the trough hole. According to the invention, automatic and accurate control of the valve rod feed can be conveniently realized such that the slurry mixing effect of the high-energy mixer is more excellent than that in the prior art and the high-energy mixer can be used in both automatic and manual modes.

Description

A kind of clear water control device of high energy mixer and high energy mixers

Technical field

The present invention relates to cementing equipment and mixed slurry equipment high energy mixers for oil gas field, be specifically related to a kind of clear water control device of high energy mixer and high energy mixers.

Background technology

Oil gas field, in carrying out the well cementing operation process, has strict requirement to the control of cement slurry density, and high energy mixers is as one of core component of cementing equipment, and quality of its mixed slurry effect is directly connected to cementing quality.Traditional single argument high energy mixers with manually-operated gate control clear water flow, completed by operating personnel's control valve size, can only regulate clear water flow with operating personnel's experience and intuition, therefore is difficult to guarantee cement slurry density.And because the fluctuation of cement slurry density may affect cementing quality, and then can affect the production capacity in oil field.Possesses at present the cementing equipment of automatically mixed slurry function in reinforcing oil well field extensive use, and substitute gradually the mixed slurry system of single argument by the mixed slurry system of bivariate, the mixed slurry system of bivariate has become the main flow of reinforcing oil well industry, the mixed slurry system of so-called bivariate is controlled clear water and dry powder flow exactly simultaneously, to reach mixed slurry effect preferably.

Bivariate high energy mixers clear water controlling organization mostly adopts hydraulic driving mode both at home and abroad at present, high energy mixers as disclosed as Chinese patent CN 200620095469 just belongs to this bivariate blender scheme, this class control mode adopts the flow control board structure control water yield, although with respect to manual control, very much progress is arranged, but remain in following defect: the one, due to this hydraulic driving mode, influenced by environmental temperature, and the unstability of hydraulic system, can't reach very accurately and control; The 2nd, inner structural members is many and complicated, clear water injection place sealing surface easily causes wearing and tearing, and the consumable accessory quantity such as blender sealing ring are many, makes troubles to regular maintenance and maintenance, and its sealing surface water inlet is easily frozen while using in the winter time, inconvenient on-the-spot operation is used; That manual adjustment can not realize convenient and control comparatively accurately when driving mechanism is malfunctioning again.

Summary of the invention

The purpose of this invention is to provide a kind of working stability, control accurately high clear water control device of high energy mixer, to solve the deficiency of above-mentioned existing scheme.

The technical scheme that the present invention solves the problems of the technologies described above is as follows:

A kind of clear water control device of high energy mixer, comprise mount pad, linear actuator, hinge axis, rocking arm, leading screw, manual rocking handle, thread spindle and valve rod, be characterized in: the top of described mount pad is furnished with flange, and be fixedly connected with the clear water tube end flange of high energy mixers, bottom and the middle part of described mount pad are equipped with axis hole, described hinge axis is inserted in the middle part axis hole of described mount pad, described linear actuator is furnished with holder, the both sides of described holder are provided with axle, and described axle is inserted in the bottom axis hole of mount pad.

Middle part and the two ends of described rocking arm are equipped with axis hole, the upper end of described rocking arm and described valve rod adopt chain connection, the lower end of described rocking arm and the push rod of described linear actuator adopt chain connection, the two ends of described thread spindle are plugged in the mider hole of described rocking arm, the middle part of described thread spindle is provided with the supporting connection of the described leading screw of a Kong Bingyu, and an end of described leading screw is fixed on described hinge axis.

Described linear actuator is the electric linear actuator.

Operation principle of the present invention is: under electric control state; rocking arm is usingd thread spindle and formed leverage as fulcrum; now rocking arm is connected hinge as force position with the push rod of linear actuator; rocking arm is connected hinge as the reaction force with valve rod; when the push rod telescopic moving of linear actuator; the band ovable valve stem is done rectilinear motion, and then accurately controls the water valve aperture.

The invention has the beneficial effects as follows: because the technical program has adopted chain connection on the syndeton of rocking arm, valve rod, leading screw and linear actuator, form multi-link structure, thereby when promoting, linear actuator can guarantee valve rod rectilinear motion all the time, the motion structure simple and flexible; Adopt the electric linear actuator can realize easily that the computer of the amount of feeding controls automatically, and accurately control the position of valve rod by the electric linear actuator, the convenient software that adopts is realized the nonlinear compensation to the machinery valve aperture simultaneously, and then accurately control the proportioning of clear water flow and dry powder in high energy mixers, thereby guaranteed cement slurry density; Because this programme can be realized the accurate control to valve rod, therefore can replace with simple valve mechanism the Flow-rate adjustment plate structure of relative complex, and avoid the associated disadvantages of being brought by the Flow-rate adjustment plate structure.

The present invention also can do following improvement, and the end at described leading screw arranges manual rocking handle, at described thread spindle and leading screw junction, is provided with through hole, and this through hole runs through described thread spindle and leading screw, in described through hole, is provided with bearing pin.Can realize the manual control of valve rod with this.It is firm that bearing pin also can guarantee that thread spindle is connected with screw mandrel when electronic control.

When manually controlling, operation principle is: rocking arm is usingd linear actuator and is connected hinge with rocking arm and forms leverage as fulcrum, after extracting bearing pin, drive the leading screw rotation by manual rocking handle, thread spindle is along guide screw movement, now thread spindle is as force position; rocking arm is connected hinge as the reaction force with valve rod, to realize the control to stem position.

The beneficial effect of described improvement project is: when the electric linear actuator breaks down or in case of emergency, directly extracts described bearing pin, with regard to available manual rocking handle, control stem position, realize switching fast between manually control and two kinds of modes of electronic control.Can effectively avoid the loss caused not in time because of conversion.

The present invention also provides a kind of high energy mixers, it is characterized in that comprising above-described clear water control device.Be about to this clear water control device and be fixedly connected on the clear water tube end composition high energy mixers of high energy mixers by its mount pad.

The beneficial effect of a kind of high energy mixers of the present invention is: owing to adopting clear water control device of the present invention, can realize more accurate control to clear water flow, make the mixed slurry effect of high energy mixers more excellent than prior art, cement slurry density can better meet instructions for use.

The accompanying drawing explanation

Fig. 1 is clear water control device structural representation of the present invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 be in Fig. 1 A-A to generalized section;

Fig. 4 be in Fig. 1 B-B to generalized section;

Fig. 5 is mount pad structural representation in Fig. 1;

Fig. 6 is the high energy mixers schematic diagram that adopts clear water control device of the present invention.

In Fig. 1 to Fig. 6,1, mount pad, 2, axle, 3, linear actuator, 4, hinge axis, 5, leading screw, 6, thread spindle, 7, manual rocking handle, 8, rocking arm, 9, valve rod, 10, bearing pin, 11, push rod, 12, holder, 13, the clear water pipe, 14, the dry powder pipe, I, clear water entrance, II, dry powder entrance.

The specific embodiment

As Figure 1-Figure 5, a kind of clear water control device of high energy mixer, comprise mount pad 1, axle 2, linear actuator 3, hinge axis 4, leadingscrew 5,thread spindle 6, manual rocking handle 7, rockingarm 8, valve rod 9, bearingpin 10 and holder 12, be characterized in: the top of described mount pad 1 is furnished with flange, and be fixedly connected with the end flange of the clear water pipe 13 of high energy mixers, bottom and the middle part of described mount pad 1 are equipped with axis hole, described hinge axis 4 is inserted in the middle part axis hole of described mount pad 1, described linear actuator 3 is furnished with holder 12, the both sides of described holder 12 are provided with axle 2, described axle 2 is inserted in the bottom axis hole of mount pad 1.

Middle part and the two ends of described rockingarm 8 are equipped with axis hole, the upper end of described rockingarm 8 and described valve rod 9 adopt chain connection, the lower end of described rockingarm 8 and the push rod of described linear actuator 11 adopt chain connection, the two ends of describedthread spindle 6 are plugged in the mider hole of described rockingarm 8, the middle part of describedthread spindle 6 is provided with the supporting connection of the described leadingscrew 5 of a Kong Bingyu, and an end of described leadingscrew 5 is fixed on describedhinge axis 6.

Described linear actuator 3 is electric linear actuators.

Operation principle of the present invention is: under electric control state; rockingarm 8 is usingdthread spindle 6 and formed leverage as fulcrum; now rockingarm 8 is connected hinge as force position with linear actuator 3; rockingarm 8 is connected hinge as the reaction force with valve rod 9; when push rod 11 telescopic moving of linear actuator; be with ovable valve stem 9 to do rectilinear motion, and then accurately control the water valve aperture.

Because the technical program has adopted chain connection on the syndeton of rockingarm 8, valve rod 9, leadingscrew 5 and linear actuator 3, form multi-link structure, thereby guaranteed can guarantee valve rod 9 rectilinear motion all the time, motion structure simple and flexible when the push rod 11 of linear actuator promotes; The present embodiment adopts electric linear actuator 3 can realize more easily that the computer of the amount of feeding controls automatically, and accurately control the position of valve rod by electric linear actuator 3, the present embodiment adapted software is realized the nonlinear compensation to the machinery valve aperture, and then can accurately control the proportioning of clear water flow and dry powder in high energy mixers, thereby guaranteed cement slurry density.

An end at described leading screw arranges manual rocking handle 7 in addition, at describedthread spindle 6 and leadingscrew 5 junctions, is provided with through hole, and this through hole runs through describedthread spindle 6 and leadingscrew 5, is provided with bearingpin 10 in described through hole.Can realize the manual control of valve rod 9 with this.It is firm that bearingpin 10 also can guarantee thatthread spindle 6 is connected withscrew mandrel 5 when electronic control.

When electric linear actuator 3 breaks down or in case of emergency, directly extract described bearingpin 10, control the position of valve rod 9 with regard to available manual rocking handle 7, realize switching fast between manually control and two kinds of modes of electronic control, can effectively avoid the loss caused not in time because of conversion.

When manually controlling, operation principle is: rockingarm 8 is usingd the push rod 11 of linear actuator 3 and is connected hinge with rockingarm 8 and forms leverage as fulcrum, after extracting bearingpin 10, drive leadingscrew 5 rotations by manual rocking handle 7,thread spindle 6 moves along leadingscrew 5, nowthread spindle 6 is as force position; rockingarm 8 is connected hinge as the reaction force with valve rod 9, when clockwise or inhour are shaken manual rocking handle 7, can realize the push-and-pull of valve rod 9 is controlled.

As shown in Figure 6, the present invention also provides a kind of high energy mixers that adopts the above clear water control device, and concrete scheme is: the mount pad of clear water control device of the present invention is fixed on the tube head flange of clear water pipe 13 of described high energy mixers and forms the clear water control system together with Clean water valve.Clear water is controlled and is entered the high energy mixers cavity through Clean water valve from clear water pipe 13 entrance I, with the cement mixing of being sent into by dry powder pipe 14 entrance II, owing to adopting clear water control device of the present invention, can realize more accurate control by computer software to clear water flow, comprise the nonlinear compensation to the machinery valve aperture, make the mixed slurry effect of high energy mixers more excellent than prior art, cement slurry density can better meet instructions for use.

Claims (4)

1. a clear water control device of high energy mixer, comprise mount pad, linear actuator, hinge axis, rocking arm, leading screw, thread spindle and valve rod, it is characterized in that: the top of described mount pad is fixedly connected with the clear water tube end of high energy mixers, bottom and the middle part of described mount pad are equipped with axis hole, described hinge axis is inserted in the middle part axis hole of described mount pad, described linear actuator is furnished with holder, the both sides of described holder are provided with axle, and described axle is inserted in the bottom axis hole of mount pad;

Middle part and the two ends of described rocking arm are equipped with axis hole, the upper end of described rocking arm and described valve rod adopt chain connection, the lower end of described rocking arm and the push rod of described linear actuator adopt chain connection, the two ends of described thread spindle are plugged in the mider hole of described rocking arm, the middle part of described thread spindle is provided with the supporting connection of the described leading screw of a Kong Bingyu, and an end of described leading screw is fixed on described hinge axis.

2. the clear water control device of high energy mixers according to claim 1, it is characterized in that: described linear actuator is the electric linear actuator.

3. according to the clear water control device of the described high energy mixers of claim 1 to 2 any one, it is characterized in that: the other end at described leading screw also is provided with manual rocking handle, at described thread spindle and leading screw junction, is provided with through hole, in described through hole, is provided with bearing pin.

4. a high energy mixers, is characterized in that: comprise as the described clear water control device of claim 1-3 any one.

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