CN104772101B - A kind of oscillation device for Oscillatory Flow Reactor and using method thereof - Google Patents

Abstract

The invention relates to an oscillating device for an oscillating flow reactor and a method for using the same, comprising an oscillator housing, a turntable controlled by a speed-regulating motor is arranged inside the oscillator housing, a piston cylinder is arranged inside the oscillator housing, The piston cylinder is equipped with a piston that can move in the piston cylinder, and the piston cylinder is equipped with an end cover. The piston and the turntable are connected through a connecting rod. There is a swing seat between the speed regulating motor and the turntable, and the swing seat is fixed to the speed regulating motor. connection, the oscillator housing is provided with a servo motor that drives the swing seat to rotate around the vertical line of the horizontal plane, and the oscillator housing is provided with an angle sensor that can measure the rotation angle of the swing seat. This patent realizes the vibration device in the oscillatory flow reactor. High-precision stepless adjustable frequency and amplitude, using a servo motor to improve the adjustment accuracy of the stroke, for the piston stroke and speed adjustment of the oscillation device, it is reliable, accurate, and easy to implement, meeting the oscillation flow amplitude in the oscillation flow reactor and precise control of frequency.

Description

Oscillating device for oscillating flow reactor and method of use thereof

technical field

The present invention relates to an oscillating device for an oscillating flow reactor and a method of use thereof.

Background technique

The oscillating flow reactor is a new type of device. It uses an oscillating device to generate vortices when the liquid passes through a series of baffles inside the reactor during reciprocating motion. Internal mixing improves the performance of heat and mass transfer. Oscillating flow reactors have great research and engineering application value in reactor engineering, bioreactors, multiphase systems and filtration units.

The frequency and amplitude of the oscillating flow in the reactor are the key process parameters that affect the performance of the reactor. Studies have shown that different media in the reactor need to apply different process parameters in order to achieve the best performance of heat transfer and mass transfer. Moreover, the frequency and amplitude of the oscillating flow need to be constantly adjusted at different reaction stages of the medium in the reactor. Therefore, the oscillation device capable of generating oscillating flow with adjustable amplitude and frequency is a key component of the oscillating flow reactor, and it is also an important device to promote the scientific mechanism research of the oscillating flow reactor from the laboratory to the engineering application.

However, in the existing oscillating flow reactor, the piston or vibrating membrane at one or both ends of the reactor is mainly driven by a cam mechanism to make the liquid reciprocate, so that the medium in the reactor forms an oscillating flow. The vibration frequency of the oscillating flow is adjusted by changing the rotational speed of the cam, but the amplitude of the oscillating flow cannot be adjusted. Due to the high secondary contact of the cam mechanism, it is easy to wear, the speed is low, and the stroke cannot be adjusted, which limits the research and engineering application of the oscillatory flow reactor. In addition, there is also an oscillating flow reactor in which the existing trial-and-error plunger pump is used as an oscillating device, and the pumping action of the plunger pump is used to generate an oscillating flow in the reactor. However, most of the existing reciprocating plunger pumps use a crank-slider mechanism. The crank is driven by the prime mover to rotate, and the plunger is reciprocated through the connecting rod to perform liquid suction and discharge. Since the total stroke of the plunger pump is determined, the flow rate of the pump remains constant at the same speed. In order to meet the different flow requirements during the use of the oscillatory flow reactor, the flow can be adjusted by changing the eccentricity of the crank and changing the plunger stroke, but this method is difficult to operate; it can also be adjusted by bypass or partially opened The suction valve method regulates the flow. However, these flow adjustment methods are difficult to achieve precise flow adjustment, and cannot meet the online continuous adjustment of the output flow of the oscillation device under complex working conditions.

Contents of the invention

In order to overcome the above deficiencies, the present invention provides an oscillating device for an oscillating flow reactor and its use method, which drives the medium in the reactor to generate an oscillating flow, and adjusts the movement frequency and stroke of the piston in the oscillating device to continuously Adjust the frequency and amplitude of the oscillating flow in the reactor to adapt to the different requirements of the oscillating flow for different media and reaction stages in the reactor.

An oscillating device for an oscillating flow reactor, comprising an oscillator housing, a turntable controlled by a speed-regulating motor is arranged inside the oscillator housing, a piston cylinder is arranged inside the oscillator housing, and the piston A piston that can move in the piston cylinder is arranged in the cylinder, and an end cover is arranged outside the piston cylinder. The piston is connected with the turntable through a connecting rod. A swing seat is arranged between the speed regulating motor and the turntable, and the swing seat It is fixedly connected with the speed-regulating motor. The oscillator housing is provided with a servo motor that drives the swing seat to rotate around the vertical line of the horizontal plane. The side of the servo motor is provided with a brake for locking the servo motor. The oscillator housing An angle sensor that can measure the rotation angle of the swing seat is arranged on the top.

Further, the connecting rod is a ball-joint connecting rod.

Further, the end cap is provided with a connection port for connecting with the container of the oscillation reactor.

Further, the swing seat is perpendicular to the output shaft of the speed regulating motor and parallel to the turntable.

A method for using an oscillating device for an oscillating flow reactor, comprising the following steps:

(1) The turntable is driven to rotate by the speed-regulating motor, and the rotation of the turntable drives the connecting rod to move, thereby driving the piston to do reciprocating linear motion. By changing the speed of the speed-regulating motor, the movement speed of the piston can be changed, thereby realizing the control of the piston movement; ( 2) The servo motor drives the swing seat to rotate, thereby changing the angle between the turntable and the axis of the piston, and adjusting the movement stroke of the piston; when the end face of the swing seat is perpendicular to the axis of the piston, the connecting rod rotates around the center of the turntable when the turntable rotates. When the reciprocating stroke of the piston is zero, the oscillating device is on standby, and the output flow is zero; when the end face of the oscillating seat is not perpendicular to the axis of the piston, the speed regulating motor drives the turntable to rotate, the piston starts to reciprocate linearly, and the oscillating device starts to work.

Compared with the prior art, the beneficial effect of the present invention is: this patent realizes the high-precision stepless adjustment of the frequency and amplitude of the oscillation device in the oscillatory flow reactor, and the use of a servo motor improves the adjustment accuracy of the stroke. For the oscillation device The piston stroke and speed adjustment are reliable, accurate and easy to realize, and can meet the precise control of the amplitude and frequency of the oscillatory flow in the oscillatory flow reactor.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the use state of the present invention;

Fig. 3 is a schematic diagram of a standby state of the present invention;

Fig. 4 is a schematic view of the working state of the present invention.

In the picture:

1-end cover; 2-piston cylinder; 3-piston; 4-connecting rod; 5-oscillator housing; 6-servo motor; 7-brake; 8-turntable; 9-swing seat; 10-speed motor; 11-angle sensor; 12-reactor; 13-pipeline; 14-oscillator.

detailed description

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

As shown in Figure 1, an oscillation device for an oscillating flow reactor includes an oscillator housing 5 inside which is provided with a turntable 8 controlled by a speed-regulating motor 10, and the oscillator housing A piston cylinder 2 is arranged inside the body 5, and a piston 3 that can move in the piston cylinder 2 is arranged inside the piston cylinder 2, and an end cover 1 is arranged outside the piston cylinder 2, and the piston 3 and the turntable 8 are connected through a connecting rod 4. connection, a swing seat 9 is provided between the speed regulating motor 10 and the turntable 8, the swing seat 9 is fixedly connected with the speed regulating motor 10, and the oscillator housing 5 is provided with a driving swing seat 9 around the vertical line of the horizontal plane The rotating servo motor 6 is provided with a brake 7 for locking the servo motor 6 beside the servo motor 6 , and an angle sensor 11 capable of measuring the rotation angle of the swing base 9 is provided on the oscillator housing 5 .

In this embodiment, the connecting rod 4 is a ball-joint connecting rod, which ensures that the entire movement mechanism will not interfere when the piston movement stroke is adjusted, and the spherical movement pair is a low pair, which has a relatively high load-carrying capacity.

In this embodiment, the end cap 1 is provided with a connection port for connecting with the container of the oscillation reactor 12 .

In this embodiment, the oscillating seat 9 is perpendicular to the output shaft of the speed regulating motor 10 and parallel to the turntable 8 .

As shown in Figure 2, the container 12 of the oscillating reactor is connected with the end cap 1 through the pipeline 13, when the piston 3 of the oscillator 14 moves linearly, a suction effect is generated in the reactor 12, thereby driving the The medium creates an oscillating flow.

As shown in Figure 3, in the space crank slider mechanism composed of the turntable 8, the swing seat 9, the ball joint rod 4 and the piston 3, when the rotation plane of the turntable 8 is perpendicular to the axis of the piston 3, the distance between the piston 3 and the turntable 8 The distance remains unchanged, and the movement stroke of the piston 3 is zero at this time; as shown in Figure 4, when the servo motor 6 drives the swing seat 8 to rotate through an angle, and is locked by the brake 7, thereby changing the rotation plane of the turntable 5 and the piston The included angle of the 3 axes is then driven by the speed-regulating motor 10 to rotate the turntable 6, the movement stroke of the piston 3 will not be zero, and the reciprocating linear motion is performed. At the same time, the speed of the speed-regulating motor 10 can be changed to adjust the movement speed of the piston 3. Since the turntable 8 and the piston 3 are linked by the ball joint rod 4 to form a spherical kinematic pair, it can be ensured that when the included angle between the rotation plane of the turntable 8 and the axis of the plunger 3 changes, the entire kinematic mechanism will not interfere.

As shown in FIG. 4 , the movement stroke of the piston 3 can be equivalent to twice the projection value of the distance from the center of the ball hinge on the turntable 8 to the rotation axis of the turntable 8 in the axial direction of the piston 3 . Therefore, by changing the angle between the rotation plane of the turntable 8 and the axis of the plunger 3 through the servo motor 6, the movement stroke of the piston 3 can be changed. Since the rotation angle of the servo motor can be continuously and accurately adjusted, and the swing seat can be realized by adding an angle sensor 11 The closed-loop control of 8 angles can realize the high-precision stepless adjustment of the movement stroke of the piston 3, thereby changing the flow rate of the medium in the suction reactor in the oscillation device, and achieving the purpose of adjusting the amplitude of the oscillation flow. At the same time, by changing the speed of the speed-regulating motor 10, the moving speed of the piston 3 can be continuously adjusted, thereby adjusting the frequency of the oscillating flow.

A method for using an oscillating device for an oscillating flow reactor, comprising the following steps:

(1) The turntable 9 is driven to rotate by the speed-regulating motor 10, and the rotation of the turntable 9 drives the connecting rod 4 to move, thereby driving the piston 3 to do reciprocating linear motion. By changing the speed of the speed-regulating motor 10, the movement speed of the piston 3 can be changed, thereby realizing Control the movement of the piston 3; (2) Drive the swing seat 9 to rotate through the servo motor 6, thereby changing the angle between the turntable 8 and the axis of the piston 3, and adjusting the movement stroke of the piston 3; when the end surface of the swing seat 9 is perpendicular to the axis of the piston 3 When the turntable 8 rotates, the connecting rod 4 rotates in a circle around the center of the turntable 8. At this time, the reciprocating stroke of the piston 3 is zero, the oscillation device is on standby, and the output flow is zero; when the end surface of the oscillating seat 9 is not perpendicular to the axis of the piston 3 , when the speed-regulating motor 10 drives the disc to rotate 8 times, the piston 3 starts to do reciprocating linear motion, and the oscillation device starts to work.

The above-listed preferred embodiments have further described the purpose, technical solutions and advantages of the present invention in detail. It should be understood that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included within the protection scope of the present invention.

Claims (5)

1. the oscillation device for Oscillatory Flow Reactor, comprise oscillator housing, it is characterized in that: described oscillator enclosure interior is provided with the rotating disk by buncher control, described oscillator enclosure interior is provided with piston cylinder, in described piston cylinder, be provided with the piston that can move in piston cylinder, piston cylinder is outside equipped with end cap, described piston is connected by connecting rod with rotating disk, between described buncher and rotating disk, be provided with swing seat, described swing seat is fixedly connected with buncher, on described oscillator housing, be provided with the servomotor that drives swing seat to rotate around horizontal plane vertical line, described servomotor side is provided with the brake for locking servomotor, on described oscillator housing, be provided with the angular transducer that can measure swing seat rotational angle.

2. a kind of oscillation device for Oscillatory Flow Reactor according to claim 1, is characterized in that: described connecting rod is ball head connecting rod.

3. a kind of oscillation device for Oscillatory Flow Reactor according to claim 1, is characterized in that: on described end cap, be provided with the connector for being connected with the container of oscillating reactions device.

4. a kind of oscillation device for Oscillatory Flow Reactor according to claim 1, is characterized in that: described swing seat and buncher output shaft are perpendicular, parallel with rotating disk.

5. for a using method for the oscillation device of Oscillatory Flow Reactor, it is characterized in that, comprise the following steps:

(1) drive turntable rotation by buncher, the motion of dial rotation drivening rod, thus drive piston to do linear reciprocating motion, by changing the rotating speed of buncher, can change the movement velocity of piston, thereby realize the control to piston movement; (2) drive swing seat to rotate by servomotor, thereby change the angle of rotating disk and piston axis, the movement travel of regulating piston; In the time that the axis of swing seat end face and piston is vertical, when dial rotation, connecting rod does circular-rotation around center of turntable, and now the stroke of reciprocating motion of the pistons is zero, oscillation device standby, and output flow is zero; In the time of the axis out of plumb of swing seat end face and piston, when buncher drives dial rotation, piston starts to do linear reciprocating motion, and oscillation device is started working.