CN110354704B - Foam generating device - Google Patents

Abstract

The application discloses foam generates device belongs to the foam displacement of reservoir oil field. The device comprises a foam collector, a porous plate, a plug, a motor, a bracket, external magnetic steel, internal magnetic steel, a sliding sleeve and stirring blades. When the stirring device is used, the motor drives the bracket and the outer magnetic steel to rotate through the second rotating shaft, and the rotation of the outer magnetic steel changes the magnetic force distribution around the inner magnetic steel, so that the inner magnetic steel and the stirring blades can be driven to synchronously rotate when the outer magnetic steel rotates. At the moment, the mixed liquid can be continuously conveyed into the inner cavity of the plug through the liquid inlet under the condition that the device does not stop running until the generated foam amount reaches the preset requirement, so that the time spent on filling the mixed liquid into the foam generating device for multiple times due to overlarge foam demand is saved. In the foam generation process, the amount of the mixed liquid entering the inner cavity of the plug is accurately controlled according to the converted foam amount, so that the waste of the mixed liquid is avoided, and the cost is saved.

Description

Foam generating device

Technical Field

The application relates to the technical field of foam flooding, in particular to a foam generating device.

Background

Foam flooding is an oil displacement method for displacing crude oil stored in a stratum by taking foam as an oil displacement medium. When the method is used for oil displacement, water, gas and a foaming agent in a certain proportion are prepared into mixed liquid, then the mixed liquid is injected into a high-speed stirrer for high-speed stirring, the mixed liquid is fully rubbed and then converted into foam, and the foam is injected into a stratum to realize the displacement of crude oil. Since the foaming speed, the foaming amount, the half-life period and the like of the mixed liquid after forming foam have an important influence on the foam-driving performance, and the mixed liquid is subjected to high-speed stirring as a necessary condition for forming foam, a foam-generating apparatus is required to obtain foam for foam-driving performance evaluation by high-speed stirring of the mixed liquid by the foam-generating apparatus.

In the related technology, the foam generating device can be a wu yin stirrer, wherein the wu yin stirrer comprises a controller and a stirring cup, stirring blades are arranged in the stirring cup, and the controller can control the rotating speed of a motor to rotate within the range of 0-18000 r/min. When the foam-type stirring cup is used, a mixed liquid is prepared by water, gas and a foaming agent according to a certain proportion and is filled into the stirring cup, the stirring cup is connected with a controller, the motor drives the stirring blades to rotate by starting the controller and adjusting the rotating speed of the motor, and the mixed liquid is converted into foam after the stirring blades stir the mixed liquid at a high speed. After the stirring was completed, the foam in the stirring cup was poured into a test tube and the foam was evaluated for properties.

However, because the stirring cup in the wu-yin stirrer is in a closed state, a certain amount of mixed liquid can only be added into the stirring cup according to manual experience in each stirring process, however, the foam amount converted from the mixed liquid with different proportions is different, when the amount of the added mixed liquid is too small, the foam amount obtained by one-time stirring cannot meet the demand of an evaluation test, secondary stirring is required, the workload is increased, and the working efficiency is reduced; when the amount of the mixed liquid added is too large, the foam amount obtained by one-time stirring exceeds the required amount of the evaluation test, and the material is wasted.

Disclosure of Invention

The application provides a foam generating device, can be used for solving and adopting the correlation technique when stirring at a high speed to the mixed liquid, can not the problem of the foam volume of accurate control by the mixed liquid conversion. The technical scheme is as follows:

a foam generating device comprises a foam collector, a porous plate, a plug, a motor, a bracket, external magnetic steel, internal magnetic steel, a sliding sleeve and stirring blades;

the first plate surface of the porous plate is connected with the foam collector, the second plate surface of the porous plate covers the opening of the plug, and the porous plate is provided with at least two through holes;

the plug comprises a first part and a second part, an opening of the plug is positioned in the first part, an inner cavity of the first part is communicated with an inner cavity of the second part, the inner diameter of the first part is larger than that of the second part, and a liquid inlet is formed in the side wall of the plug;

the sliding sleeve and the stirring blade are positioned in the inner cavity of the first part, the internal magnetic steel is positioned in the inner cavity of the second part, a first rotating shaft is arranged on the internal magnetic steel, a first through hole is formed in the sliding sleeve, and the first rotating shaft penetrates through the first through hole and is connected with the stirring blade;

the motor is provided with a second rotating shaft, the support is connected with the second rotating shaft, the support is provided with a groove, the groove wall of the groove is provided with the external magnetic steel, and the groove surrounds the outside of the second part.

Optionally, the communication cavity formed by the communication between the inner cavity of the first part and the inner cavity of the second part comprises a first inner cavity and a second inner cavity, and the inner diameter of the first inner cavity is larger than that of the second inner cavity;

the side wall of the first part is provided with an inclined through hole, a first hole of the inclined through hole is formed in the outer wall of the first part, a second hole of the inclined through hole is formed in the inner wall of the first inner cavity, and the first hole is the liquid inlet.

Optionally, the foam collector is an evaluation pipe, and the foam generating device further comprises an evaluation pipe sleeve and an outer cylinder;

the first end of the evaluation pipe sleeve is sleeved at one end of the evaluation pipe, the second end of the evaluation pipe sleeve is sleeved on the porous plate, and the outer cylinder is sleeved at the outer side of the evaluation pipe sleeve.

Optionally, the foam generating device further comprises a pull rod, one end of which is connected with the first end of the evaluation tube sleeve.

Optionally, the foam generating apparatus further comprises a first flange, and the stopper is connected to the porous plate through the first flange and the evaluation sleeve.

Optionally, the foam generating apparatus further comprises a second flange, a plurality of first bolts and a plurality of second bolts;

the bracket is connected with the outer cylinder through the second flange and the first bolts;

the bracket is connected with the motor through the second flange and the second bolts.

Optionally, the bracket is disposed in an inner cavity of the second flange, and the second flange is provided with a plurality of second through holes and a plurality of third through holes;

the first bolts penetrate through the second through holes respectively and are inserted into one end, close to the support, of the outer cylinder, so that the second flange is connected with the outer cylinder;

and the second bolts respectively penetrate through the third through holes and are inserted into one end, close to the support, of the motor, so that the second flange is connected with the motor.

Optionally, the foam generating device further comprises a heating jacket and an insulating jacket;

the heating sleeve is sleeved on the outer cylinder, and the heat-insulating sleeve is sleeved on the heating sleeve.

Optionally, the foam generating device further comprises a speed increaser;

and a third transmission shaft is arranged at the first end of the speed increaser, the first end of the speed increaser is connected with the first end of the support through the third transmission shaft, and the second end of the speed increaser is connected with the second transmission shaft.

Optionally, the foam generating device further comprises a rotational speed controller;

the rotating speed controller is connected with the motor and used for controlling the rotating speed of the motor.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least: the embodiment of the application provides a foam generates device includes the foam collector, the perforated plate, the end cap, including a motor, an end cap, and a controller, and a support, the outer magnet steel, interior magnet steel, sliding sleeve and stirring vane, the first face and the foam collector of perforated plate are connected, the second face of perforated plate covers the opening part at the end cap, be provided with two at least through-holes on the perforated plate, interior magnet steel, sliding sleeve and stirring vane once set up in the inner chamber of end cap, and be in the same place through first rotation axis connection, the outer magnet steel sets up on the recess cell wall of support, the motor passes through second axis of rotation and leg joint. During the use, the motor drives support and outer magnet through the second axis of rotation and rotates, and the rotation of outer magnet can cause the change in magnetic field around, thereby drive the inner magnet synchronous rotation of setting in the inner chamber of end cap, under the rotation of inner magnet, through first axis of rotation, stirring vane also can rotate with inner magnet synchronous rotation, at this moment, in the inner chamber of end cap is sent into from the inlet on the end cap to the mixed liquid, stirring vane can carry out high-speed stirring to the mixed liquid, the mixed liquid by high-speed stirring turns into the foam, and in order to use in getting into the foam collector through the perforated plate. Because the inlet communicates the inner chamber and the exterior space of end cap, consequently, when stirring mixed liquid at a high speed, can control the volume that gets into the mixed liquid in the inner chamber of end cap according to the foam volume that has changed into, thereby realized carrying out accurate control to the foam volume that generates, when the foam volume that generates does not reach the demand, can continue to carry mixed liquid in to the end cap through the inlet, make foam generation device generate more abundant foam, and when the foam volume that generates reaches the demand, stop to carrying mixed liquid in the end cap, the waste of mixed liquid has been avoided, and the cost is saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a foam generating device provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of another foam generating device provided in the embodiments of the present application.

Reference numerals:

01: a foam collector; 02: a perforated plate; 03: a plug; 04: a motor; 05: a support; 06: external magnetic steel; 07: internal magnetic steel; 08: a sliding sleeve; 09: a stirring blade; 10: evaluating the pipe sleeve; 11: an outer cylinder; 12: a pull rod; 13: a first flange; 14: a second flange; 15: a first bolt; 16: a second bolt; 17: heating a jacket; 18: a thermal insulation sleeve; 19: a speed increaser; 20: a rotational speed controller;

011: evaluating the tube; 021: a first board surface; 022: a second board surface; 031: a first portion; 032: a second portion; 033: a liquid inlet; 034: a first lumen; 035: a second lumen; 036: an oblique through hole; 037: a first hole site; 038: a second hole site; 041: a second rotating shaft; 051: a groove; 071: a first rotating shaft; 081: a first through hole; 141: a second through hole; 142: a third through hole; 191: a first end of the speed increaser; 192: a third drive shaft; 193: a second end of the speed increaser.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a foam generating apparatus according to an embodiment of the present disclosure. As shown in fig. 1, the foam generating apparatus comprises a foam collector 01, a porous plate 02, a plug 03, a motor 04, a bracket 05, external magnetic steel 06, internal magnetic steel 07, a sliding sleeve 08 and a stirring blade 09, wherein a first plate surface 021 of the porous plate 02 is connected with the foam collector 01, a second plate surface 022 of the porous plate 02 covers an opening of the plug 03, at least two through holes are formed in the porous plate 02, the plug 03 comprises a first portion 031 and a second portion 032, the opening of the plug 03 is located in the first portion 031, an inner cavity of the first portion 031 is communicated with an inner cavity of the second portion 032, an inner diameter of the first portion 031 is larger than an inner diameter of the second portion 032, a liquid inlet 081 is formed in a side wall of the plug 03, the sliding sleeve 08 and the stirring blade 09 are located in the inner cavity of the first portion 031, the internal magnetic steel 07 is located in the inner cavity of the second portion 032, a first rotating shaft 071 is formed in the sliding sleeve 08, the first rotating shaft 071 penetrates through the first through hole 081 to be connected with the stirring blade 09, the motor 04 is provided with a second rotating shaft 041, the bracket 05 is connected with the second rotating shaft 041, the bracket 05 is provided with a groove 051, the groove wall of the groove 051 is provided with the outer magnetic steel 06, and the groove 051 surrounds the outside of the second part 032.

Before the foam generating device provided by the embodiment of the application is used for generating foam, mixed liquid to be used can be prepared by using water, gas and foaming agent in different proportions according to the requirement on the foam. When the foam generating device is used for generating foam, the motor 04 on the foam generating device is started first, and the rotation of the motor 04 drives the second rotating shaft 041 to rotate, so as to drive the bracket 05 and the external magnetic steel 06 which are connected with the second rotating shaft 041 to rotate. Since the groove 051 on the bracket 05 surrounds the outside of the second part 032 of the plug 03, although the outer magnet steel 06 and the inner magnet steel 07 are not contacted, the magnetic force which is continuously changed by the outer magnet steel 06 changes the magnetic field between the outer magnet steel 06 and the inner magnet steel 07 as long as the outer magnet steel 06 is in a rotating state, and the inner magnet steel 07 can rotate according to the changing state of the magnetic field after the changed magnetic field is contacted with the magnetic force of the inner magnet steel 07. Under the rotation of the inner magnetic steel 07, the inner magnetic steel 07 is connected with the stirring blade 09 through the first rotation shaft 071, so that the first rotation shaft 071 and the stirring blade 09 also rotate along with the rotation. When the rotating speed of the stirring blade 09 reaches the rotating speed capable of converting the mixed liquid into foam, the prepared mixed liquid to be used is conveyed into the inner cavity of the first part 031 of the plug 03 through the liquid inlet 033 of the plug 03, and the mixed liquid is stirred at a high speed through the stirring blade 09. The mixed liquid stirred at a high speed may be converted and foam may be generated, and the generated foam may be introduced into the foam collector 01 through the porous plate 02. When the foam generates the device and generates the foam through this application embodiment, because inlet 033 communicates the inner chamber and the exterior space of end cap 03, consequently, the volume of the mixed liquid in the inner chamber that gets into end cap 03 can be controlled according to the foam volume that has converted into, thereby realized carrying out accurate control to the foam volume that generates, when the foam volume that generates does not reach the demand, can last to the intracavity of the first part of end cap 03 transport mixed liquid through inlet 033, make the foam generate the device generate more plenty of foam, and when the foam volume that generates reaches the demand, stop to transport mixed liquid in the end cap 03, thereby the waste of mixed liquid has been avoided, and the cost is saved. And, foam still need pass through porous plate 02 before entering foam collector 01, on the one hand, when the foam volume that generates the foam in the end cap is great, form the foam group easily, through-hole on the porous plate 02 can disperse the foam group, makes the foam enter foam collector 01 in order with the dispersed state, and on the other hand, when porous plate 02 disperses the foam, also sheared the foam simultaneously to can simulate the shearing motion state of foam in the tubular column, improved the authenticity of appraising the result.

Among them, the perforated plate 02 is a member for dispersing and shearing foam before the foam enters the foam collector 01 in the foam generating apparatus. The porous plate 02 can be in any shape, at least two through holes are formed in the porous plate 02, the more the through holes in the porous plate 02 are, the better the dispersing and shearing effects on the foam are, the porous plate 02 can be made of toughened glass, alloy steel, cast iron or carbon steel, the thickness of the porous plate 02 is determined by the manufacturing material of the porous plate 02, the higher the strength of the manufacturing material of the porous plate 02 is, the thinner the thickness of the porous plate 02 can be, and the porous plate 02 is not specifically limited in the embodiment of the application as long as deformation or structural damage does not occur in use.

Wherein the foam collector 01 is a part for collecting foam in the foam generating apparatus. The foam collector 01 may be a duct for transporting foam, or may be a container for containing foam. When the foam collector 01 is a duct for transporting foam, the foam collector 01 may be a flexible tube such as a stainless steel flexible tube, a metal flexible tube, a corrugated flexible tube, a rubber flexible tube or a plastic flexible tube, and the foam collector 01 may also be a rigid tube such as a PVC (polyvinyl chloride) rigid tube, an aluminum rigid tube or a steel rigid tube. The pipe diameter of the foam collector 01 is determined by the amount of foam generated by the foam generating device in unit time, and the larger the amount of foam generated by the foam generating device in unit time is, the larger the pipe diameter of the foam collector 01 is, so long as it is ensured that the foam collector 01 can efficiently transport the foam generated by the foam generating device, which is not specifically limited in this embodiment of the present application. When foam collector 01 was the conveyer pipe, foam collector 01 can be connected with the first face of perforated plate with bonding or welded mode, also can overlap foam collector 01 on the perforated plate to through the clamp with foam collector 01 card on the outer wall of the first face of perforated plate.

When the foam collector 01 is a container for containing foam, the foam collector 01 may be a container having a fixed shape or a container having no fixed shape. When the foam collector 01 is a container with a fixed shape, the external shape of the foam collector 01 may be a cylinder, a polygon prism or other irregular shapes, the internal shape and the external shape of the foam collector 01 may be the same or different, the larger the internal volume of the foam collector 01, the larger the amount of foam that can be contained, the foam collector 01 may be made of organic glass, cast iron, alloy aluminum or alloy steel, as long as it is ensured that the foam collector 01 does not generate structural deformation or damage in the process of collecting foam, which is not specifically limited in the embodiment of the present application. One end of the foam collector 01 may be connected to the first plate surface 021 of the porous plate 02 by welding, bonding, or screwing. For example, if the outer diameter of the end of the foam collector 01 connected to the porous plate 02 is the same as the outer diameter of the porous plate 02, the first plate surface 021 of the porous plate 02 is covered on the end surface of the end of the foam collector 01 connected to the porous plate 02, and the first plate surface 021 of the porous plate 02 is fixedly connected to the foam collector 01 by welding or bonding by applying a solid glue. Or, if the inner diameter of the end of the foam collector 01 connected to the porous plate 02 is the same as the outer diameter of the porous plate 02, the inner wall of the port of the end of the foam collector 01 connected to the porous plate 02 is provided with an internal thread, and the outer wall of the porous plate 02 is provided with an external thread, so that the first plate surface 021 of the porous plate 02 is connected to the foam collector 01 by means of a threaded connection. The embodiment of the present application does not specifically limit the connection between the foam collector 01 and the first plate surface 021 of the porous plate 02.

When the foam collector 01 is a container without a fixed shape, the foam collector 01 can be a collecting bag made of plastic or rubber, and because the plastic or rubber has better plasticity and impact resistance, when the foam collector 01 is not filled with foam, the foam collector 01 can be in any shape, such as a round ball shape which is kneaded into a ball or a cylinder shape which is rolled together, so as to reduce the volume of the space occupied by the foam collector 01, when the bag is filled with foam, the space occupied by the foam collector 01 is gradually increased, the larger the amount of foam filled in the foam collector 01, the larger the volume of the space occupied by the foam collector 01, at the moment, the maximum amount of foam allowed to be filled in the foam collector 01 is determined by the size of the collecting bag and the density of the material of the collecting bag, and under the condition that the density of the material of the collecting bag is fixed, the larger the size of the collecting bag is, the larger the maximum amount of foam allowed to be contained in the foam collecting device 01 is, and under the condition that the size of the collecting bag is fixed, the larger the density of the material of which the collecting bag is made is, the better the impact resistance of the collecting bag is, therefore, the larger the maximum amount of foam allowed to be contained in the foam collecting device 01 is, and the size of the collecting bag and the density of the material of which the collecting bag is made are not particularly limited in the embodiment of the present invention. When foam collector 01 is connected with the first face 021 of perforated plate 02, can overlap foam collector 01 the outside at perforated plate 02 to connect through the mode of clamp or hoop, this application embodiment is connected the first face 021 of foam collector 01 and perforated plate 02 and is not specifically restricted.

Fig. 2 is a schematic structural diagram of another foam generating device provided in the embodiments of the present application. As shown in fig. 2, when the foam collector 01 is a container having a fixed shape, the foam collector 01 may also be an evaluation pipe 011 which can collect not only the foam but also the performance of the foam after it is collected. The external shape of the evaluation tube 011 can be a cylinder or a polygonal prism, the evaluation tube 011 can be made of organic glass, cast iron, alloy aluminum or alloy steel, the wall thickness of the evaluation tube 011 is determined by the material for manufacturing the evaluation tube 011, the higher the strength of the material for manufacturing the evaluation tube 011, the thinner the tube wall of the evaluation tube 011 can be, so that the internal volume is increased under the condition that the external dimension of the evaluation tube 011 is not changed, as long as the evaluation tube 011 is not deformed or damaged in the use process, the embodiment of the application does not specifically limit the application.

Alternatively, when the foam collector 01 is the evaluation pipe 011, the foam generating apparatus further includes an evaluation pipe sleeve 10 and an outer cylinder 11, a first end of the evaluation pipe sleeve 10 is fitted over one end of the evaluation pipe 011, a second end of the evaluation pipe sleeve 10 is fitted over the porous plate 02, and the outer cylinder 11 is fitted over the outside of the evaluation pipe sleeve 10.

The evaluation pipe sleeve 10 is a member for fixing the evaluation pipe 011 in the foam generating apparatus. The evaluation pipe sleeve 10 is a hollow body, and the external shape of the evaluation pipe sleeve 10 may be a cylinder or a polygonal column, the inner diameter of the evaluation pipe sleeve 10 is determined by the outer diameter of the evaluation pipe 011 and the outer diameter of the porous plate 02, the inner diameter of the evaluation pipe sleeve 10 is the same as the outer diameter of the evaluation pipe 011 and the outer diameter of the porous plate 02 when the outer diameter of the evaluation pipe 011 and the outer diameter of the porous plate 02 are the same, the inner diameter of the first end of the evaluation pipe sleeve 10 is the same as the outer diameter of the evaluation pipe 011 and the inner diameter of the second end of the evaluation pipe sleeve 10 is the same as the outer diameter of the porous plate 02 when the outer diameter of the evaluation pipe 011 and the outer diameter of the porous plate 02 are not the same. The first end of the evaluation pipe sleeve 10 is sleeved at one end of the evaluation pipe 011 through welding, bonding or threaded connection, the second end of the evaluation pipe sleeve 10 is sleeved on the porous plate 02 through welding, bonding or threaded connection, the end face of the second end of the evaluation pipe sleeve 10 and the second plate face 022 of the porous plate 02 cover the opening of the plug 03 together, so that the evaluation pipe 011 is connected with the first plate face 021 of the porous plate 02 through the evaluation pipe sleeve 10, and the connection mode of the evaluation pipe sleeve 10 and the evaluation pipe 011 and the connection mode of the evaluation pipe 011 and the porous plate 02 can be the same or different, but the embodiment of the application is not particularly limited. The evaluation pipe sleeve 10 can be made of organic glass, cast iron, alloy aluminum or alloy steel, the material of the evaluation pipe sleeve 10 can be the same as or different from that of the evaluation pipe 011, as long as the evaluation pipe sleeve 10 is guaranteed not to generate structural change or damage in the evaluation and fixation process, and the embodiment of the application is not particularly limited to this.

In addition, the first end of the evaluation pipe sleeve 10 can be directly sleeved at one end of the evaluation pipe 011, a protective sleeve can be arranged on the inner wall of the first end of the evaluation pipe sleeve 10, and the first end of the evaluation pipe sleeve 10 is sleeved at one end of the evaluation pipe 011 and simultaneously protects and seals one end of the evaluation pipe 011 through the protective sleeve. The protective sleeve can be adhered to the inner wall of the first end of the evaluation pipe sleeve 10, and can be made of rubber or asbestos, so long as the protective sleeve is used, mechanical damage caused when the first end of the evaluation pipe sleeve 10 is connected with one end of the evaluation pipe 011 can be reduced, and the sealing performance of the first end and the first end can be improved, which is not particularly limited in the embodiment of the application.

It should be noted that, when the foam collector 01 is the evaluation pipe 011, the foam generating apparatus further includes an outer cylinder 11 to raise the pressure resistance of the foam generating apparatus through the outer cylinder 11. The outer cylinder 11 is a cylinder or a polygonal prism, the inner diameter of the outer cylinder 11 is the same as the outer diameter of the evaluation pipe sleeve 10, the outer cylinder 11 is sleeved outside the evaluation pipe sleeve 10 by welding, bonding or threaded connection, the outer cylinder 11 can be made of cast iron, alloy steel or carbon steel, the wall thickness of the outer cylinder 11 is determined by the material for manufacturing the outer cylinder 11, the thicker the wall thickness of the outer cylinder 11 is, the stronger the pressure resistance of the outer cylinder 11 is, and the higher the pressure resistance of the material for manufacturing the outer cylinder 11 is, the higher the pressure resistance of the outer cylinder 11 is, which is not specifically limited in the embodiment of the present application.

As shown in fig. 2, since the inner diameter of the outer cylinder 11 is the same as the outer diameter of the evaluation pipe sleeve 10 and the inner diameter of the first end of the evaluation pipe sleeve 10 is the same as the outer diameter of the evaluation pipe 011, when the outer cylinder 11 is fitted over the evaluation pipe sleeve 10 and the first end of the evaluation pipe sleeve 10 is fitted over one end of the evaluation pipe 011, an annular space is present between the outer cylinder 11 and the evaluation pipe 011. Due to the existence of the annular space, although the evaluation pipe sleeve 10 can fix the evaluation pipe 011, when the evaluation pipe 011 is excessively stressed, the phenomenon of swinging in the annular space still exists, and therefore, the foam generating device further comprises a pull rod 12, and one end of the pull rod 12 is connected with the first end of the evaluation pipe sleeve 10. By disposing the draw bar 12 in the annular space and contacting the evaluation tube 011 and the outer cylinder 11, the evaluation tube 011 is fixed so that the evaluation tube 011 does not swing in the annular space.

It should be noted that the tie rod 12 is a cylinder or a polygonal column, and one end of the tie rod 12 may be connected to the first end of the evaluation pipe sleeve 10 by welding, bonding, or screwing. For example, an external thread is arranged at one end of the pull rod 12, a groove 051 with the same outer diameter as the external thread of the pull rod 12 is arranged on the end face of the first end of the evaluation sleeve, and an internal thread is arranged in the groove 051, so that one end of the pull rod 12 is connected with the first end of the evaluation sleeve through the thread. In addition, the material for manufacturing the pull rod 12 may be organic glass, cast iron, alloy aluminum or alloy steel, and the higher the strength of the material for manufacturing the pull rod 12 is, the better the fixing effect of the pull rod 12 on the evaluation pipe 011 is, which is not specifically limited in the embodiment of the present application.

Optionally, the foam-generating device also comprises a first flange 13, by means of which first flange 13 the stopper 03 is connected to the perforated plate 02 and the evaluation sleeve 10.

It should be noted that, when the foam collector 01 is the evaluation pipe 011, since the evaluation pipe case 10 and the porous plate 02 are covered on the opening of the plug 03, the evaluation pipe case 10 and the porous plate 02 may be misaligned with the opening of the plug 03 due to loose connection when in use, and therefore, in order to connect the evaluation pipe case 10 and the porous plate 02 to the plug 03 more tightly, the first flange 13 may be provided in the foam generating apparatus so that the plug 03 is connected to the porous plate 02 through the first flange 13 and the evaluation pipe case 10. The outer diameter of the first end of the first flange 13 is the same as the inner diameter of the second end of the evaluation pipe sleeve 10, the inner diameter of the second end of the first flange 13 is the same as the outer diameter of the opening of the plug 03, the second end of the evaluation pipe sleeve 10 is simultaneously sleeved on the first end of the first flange 13 and the porous plate 02 in a welding, bonding or threaded connection mode, the second plate face 022 of the porous plate 02 covers the opening of the plug 03, and the second end of the first flange 13 is sleeved on the opening of the plug 03 in a welding, bonding or threaded connection mode.

The plug 03 is a part of the foam generating device for installing the internal magnetic steel 07, the sliding sleeve 08 and the stirring blade 09. The plug 03 includes a first portion 031 and a second portion 032, the porous plate 02 may directly cover an opening of the first portion 031 of the plug 03, or may be first connected to the evaluation pipe sleeve 10, and then cover the opening of the first portion 031 of the plug 03 through the evaluation pipe sleeve 10, or may be first connected to the evaluation pipe sleeve 10, then connected to the first flange 13 through the evaluation pipe sleeve 10, and then cover the opening of the first portion 031 of the plug 03 through the first flange 13, which is not specifically limited in the embodiment of the present disclosure. When the porous plate 02 is covered at the opening of the first portion 031 of the stopper 03, the outer diameter of the porous plate 02 is greater than the inner diameter of the stopper 03 so that the foam generated in the stopper 03 is entirely introduced into the foam collector 01 through the porous plate 02.

It should be noted that the external shape of the first portion 031 and the external shape of the second portion 032 of the plug 03 may be the same or different, for example, the external shapes of the two portions may be a cylinder or a polygonal prism, the plug 03 may be made of cast iron or alloy steel, the wall thickness of the plug 03 is determined by the material from which the plug 03 is made, the higher the strength of the material from which the plug 03 is made, the thinner the wall thickness of the plug 03 may be, and the thicker the wall thickness of the plug 03 is, the higher the compressive strength of the plug 03 is, and the less deformation or damage is likely to occur during use under the condition that the material from which the plug 03 is made is the same. The shape of the inner cavity of the first portion 031 of the plug 03 and the shape of the inner cavity of the second portion 032 of the plug 03 may be the same or different, the inner cavity of the first portion 031 of the plug 03 and the inner cavity of the second portion 032 of the plug 03 may be cylindrical or polygonal, the larger the volumes of the inner cavity of the first portion 031 of the plug 03 and the inner cavity of the second portion 032 of the plug 03 are, the larger the corresponding stirring blades, sliding sleeve 08 and internal magnetic steel 07 may be, the better the performance of the generated foam is, and the larger the amount of foam contained in the inner cavity of the first portion 031 is, as long as it is ensured that the stirring blades, the sliding sleeve 08 and the internal magnetic steel 07 can be smoothly installed in the inner cavity of the first portion 031 of the plug 03 and the inner cavity of the second portion 032 of the plug 03, and the shape and the size of the inner cavity of the first portion 031 and the inner cavity of the second portion 032 of the plug 03 are not limited in the embodiments of the present application.

The lumen of first portion 031 of stopper 03 and the lumen of second portion 032 may or may not be in communication. When the inner cavity of the first portion 031 of the choke plug 03 is not communicated with the inner cavity of the second portion 032, a through hole is further formed between the inner cavity of the first portion 031 and the inner cavity of the second portion 032, so that when the sliding sleeve 08 and the stirring blade 09 are located in the inner cavity of the first portion 031 and the inner magnetic steel 07 is located in the inner cavity of the second portion 032, the first rotating shaft 071 arranged on the inner magnetic steel 07 can penetrate through the through hole to be connected with the first through hole 081 arranged on the sliding sleeve 08 and the stirring blade 09. When the inner cavity of the first part 031 of the plug 03 is communicated with the inner cavity of the second part 032, the communication cavity formed by the communication of the inner cavity of the first part 031 and the inner cavity of the second part 032 comprises a first inner cavity 034 and a second inner cavity 035, at this time, the sliding sleeve 08 and the stirring blades 09 are located in the first inner cavity 034, the internal magnetic steel 07 is located in the second inner cavity 035, and the inner diameter of the first inner cavity 034 is larger than that of the second inner cavity 035, so that the first inner cavity 034 can accommodate the stirring blades 09 with larger outer diameters, and the stirring capacity of the stirring blades 09 for mixing liquid is improved.

In addition, a liquid inlet 033 is provided at a side wall of the stopper 03, so that the foam generating device continuously feeds the prepared mixed liquid into the first portion 031 of the stopper 03 through the liquid inlet 033 without stopping the operation. The liquid inlet 033 may be disposed on an outer wall of a first portion 031 of the plug 03, or may be disposed on an outer wall of a second portion 032 of the plug 03, when the liquid inlet 033 is disposed on an outer wall of the first portion 031 of the plug 03, a through hole is disposed on a side wall of the first portion 031, a first hole position 037 of the through hole is the liquid inlet 033, and a second hole position 038 of the through hole is disposed on an inner wall of the first inner cavity 034. And when the liquid inlet 033 is arranged on the outer wall of the second part 032 of the plug 03, the communicating cavity formed by the communication of the inner cavity of the first part 031 and the inner cavity of the second part 032 comprises a first inner cavity 034 and a second inner cavity 035, the inner diameter of the first inner cavity 034 is larger than the inner diameter of the second inner cavity 035, an inclined through hole 036 is arranged on the side wall of the first part 031, a first hole position 037 of the inclined through hole 036 is arranged on the outer wall of the first part 031, a second hole position 038 of the inclined through hole 036 is arranged on the inner wall of the first inner cavity 034, and the first hole position 037 is the liquid inlet 033 and a liquid inlet pipe communicated with the liquid inlet 033 can pass through the plug 03. It should be noted that the larger the aperture of the through hole or the inclined through hole 036 is, the more the liquid amount of the mixed liquid enters the inner cavity of the first part 031 in the same time is, and the aperture of the through hole or the inclined through hole 036 is not particularly limited in the embodiment of the present application.

As shown in fig. 2, it should be noted that the foam generating device further includes a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring, so that the sealing of the contact portion when the components of the foam generating device are connected is realized by these sealing rings. Specifically, a first sealing ring is sleeved on the outer wall of the contact part of the plug 03 and the outer cylinder 11, so that the contact part of the plug 03 and the outer cylinder 11 is sealed by the first sealing ring; the second sealing ring is sleeved on the outer wall of the contact part of the plug 03 and the first flange 13 so as to seal the contact part of the plug 03 and the first flange 13 through the second sealing ring; a third sealing ring is sleeved on the inner wall of the contact part of the evaluation pipe sleeve 10 and the porous plate 02 so as to seal the contact part of the evaluation pipe sleeve 10 and the porous plate 02 through the third sealing ring; the fourth sealing ring is sleeved on the outer wall of the contact part of the first flange 13 and the porous plate 02 so as to seal the contact part of the first flange 13 and the porous plate 02 through the fourth sealing ring. Optionally, the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are all rubber rings. The size of the sealing ring is determined by the size of the contact part when the corresponding foam generating device parts are connected, as long as the respective sealing effect can be ensured, and the embodiment of the application is not particularly limited to this.

The inner magnetic steel 07 is a component of the foam generating device, which is installed in the inner cavity of the second portion 032 of the plug 03 and is used for driving the stirring blade 09 to rotate through the first rotating shaft 071. The inner magnetic steel 07 can be a cylinder or a polygonal prism, the cross-sectional area of the inner magnetic steel 07 is smaller than the cross-sectional area of the inner cavity of the second portion 032 of the plug 03, so long as the inner magnetic steel 07 rotates in the inner cavity of the second portion 032 of the plug 03 without friction with the inner wall of the second portion 032 of the plug 03, and the outer shape and size of the inner magnetic steel 07 are specifically limited in the embodiment of the present application. The inner magnetic steel 07 can be made of alnico, ferrite alnico, ndfeb, sintered ndfeb or bonded ndfeb, as long as it has stronger magnetic force to guarantee that the inner magnetic steel 07 has, and this embodiment of the application does not specifically limit.

It should be noted that the first rotating shaft 071 is disposed at a central position of an end face of the inner magnetic steel 07 close to an end face of an inner cavity of the first portion 031 of the plug 03, a length of the first rotating shaft 071 is determined by a distance from the inner magnetic steel 07 to the stirring blade 09, the first rotating shaft 071 may be a cylinder or a polygonal cylinder, the first rotating shaft 071 may be made of cast iron, aluminum alloy or alloy steel, an outer diameter of the first rotating shaft 071 is determined by a material used for making the first rotating shaft 071, and the higher a strength of the material used for making the first rotating shaft 071 is, the smaller the outer diameter of the first rotating shaft 071 may be, and the embodiment of the present application is not particularly limited as long as the first rotating shaft 071 is not deformed or damaged when rotating.

The sliding sleeve 08 is a device of the foam generating device for positioning the first rotating shaft 071. The outer shape of the sliding sleeve 08 is the same as the inner cavity of the first portion 031 of the plug 03, the outer diameter of the sliding sleeve 08 is the same as the inner diameter of the inner cavity of the first portion 031 of the plug 03, and the sliding sleeve 08 cannot rotate relative to the plug 03 when installed in the inner cavity of the first portion 031 of the plug 03. The sliding sleeve 08 can be made of organic glass, rubber, cast iron, aluminum alloy or alloy steel, the shape of a first through hole 081 of the sliding sleeve 08 and the shape of the first rotating shaft 071 can be the same or different, the first through hole 081 of the sliding sleeve 08 can be a circular through hole or a regular polygon through hole, and the aperture of the first through hole 081 of the sliding sleeve 08 is larger than the outer diameter of the first rotating shaft 071, so that the sliding sleeve 08 can position the first rotating shaft 071 through the first through hole 081, and the phenomenon that the first rotating shaft 071 rotates to generate friction with the inner wall of the first through hole 081 is avoided. In addition, the longer the length of the sliding sleeve 08 is, the better the positioning effect on the first rotating shaft 071 is.

The stirring blade 09 is a component of the foam generating apparatus for stirring the mixed liquid so that the mixed liquid is converted from liquid to foam by high-speed friction. The outer diameter of the stirring blade 09 is smaller than the inner diameter of the inner cavity of the first part 031 of the plug 03, the number of the stirring blades in the stirring blade 09 can be at least two, and the more the number of the stirring blades, the better the stirring effect on the mixed liquid. The stirring blade of the stirring blade 09 may be a plate-type stirring blade or a curved stirring blade having a certain curvature, so that the contact area with the mixed liquid during stirring is increased. The stirring blade 09 may be made of organic glass, aluminum alloy, cast iron or alloy steel, as long as the stirring blade 09 is not deformed or damaged in the high-speed rotation process, which is not specifically limited in the embodiments. The stirring blade 09 may be connected to the first rotation shaft 071 by screwing, welding or bonding. For example, the central position of the stirring vane 09 is provided with a groove 051 with an internal thread, and the outside of the end of the first rotating shaft 071 connected to the stirring vane 09 is provided with an external thread, so that the first rotating shaft 071 is connected to the stirring vane 09 through the thread.

Wherein the motor 04 is a component for powering the foam generating means. The motor 04 may be a brushless dc motor, a brushed dc motor, or a permanent magnet motor, and the motor 04 only needs to provide a higher rotation speed for the foam generating device, and the embodiment of the present application does not specifically limit the type of the motor 04. The motor 04 has a switch, and the rotation speed of the motor 04 is a constant rotation speed, for example, after the motor 04 is turned on, the rotation speed of the motor 04 may be kept at 5000 rpm, 8000 rpm or 10000 rpm. One end of the second rotating shaft 041 on the motor 04 may be fixedly connected to the motor 04 by welding or threaded connection, so that the motor 04 drives the second rotating shaft 041 to rotate when rotating. The second rotation shaft 041 may be a cylinder or a polygonal prism, the second rotation shaft 041 may be made of alloy steel or carbon steel, an outer diameter of the second rotation shaft 041 is determined by a material of which the second rotation shaft 041 is made, and the stronger the material strength of the material of which the second rotation shaft 041 is made, the smaller the outer diameter of the second rotation shaft 041 may be, as long as it is ensured that the second rotation shaft 041 is not deformed or damaged during rotation, which is not specifically limited in this embodiment of the application.

Wherein the bracket 05 is a component for fixing the external magnet 06 in the foam generating device. The holder 05 can be a cylinder or a polygonal column, and the shape of the groove 051 of the holder 05 and the external shape of the second part 032 of the plug 03 can be the same or different, so long as when the groove 051 of the holder 05 is surrounded outside the second part 032 of the plug 03, the groove 052 and the second part 032 are not contacted or rubbed by the rotation of the holder 05. The support 05 can be made of organic glass, rubber, cast iron, aluminum alloy or alloy steel, as long as it is guaranteed that the support 05 does not deform or damage the structure when in use, and the embodiment of the application is not specifically limited to this.

The external magnetic steel 06 can be adhered to the groove wall of the groove 051 of the bracket 05 or can be embedded in the groove wall of the groove 051 of the bracket 05, so long as the external magnetic steel 06 is stably connected with the groove 051 of the bracket 05 when in use and cannot fall off from the groove 051, and the embodiment of the application is not particularly limited to this. The outer magnet steel 06 is made of the same material as the inner magnet steel 07, so that the inner magnet steel 07 can be driven to rotate when the outer magnet steel 06 rotates along with the bracket 05. The thickness of the external magnetic steel 06 is determined by the manufacturing material of the external magnetic steel 06 and the distance between the external magnetic steel 06 and the internal magnetic steel 07, under the condition that the linear distance between the external magnetic steel 06 and the internal magnetic steel 07 is the same, the stronger the magnetism of the manufacturing material of the external magnetic steel 06 is, the thinner the thickness of the external magnetic steel 06 can be, when the manufacturing material of the external magnetic steel 06 is fixed, the farther the linear distance between the external magnetic steel 06 and the internal magnetic steel 07 is, the thicker the thickness of the external magnetic steel 06 is, as long as it is ensured that the internal magnetic steel 07 can stably rotate along with the rotation of the external magnetic steel 06, which is not specifically limited in the embodiment of the present application.

As shown in fig. 2, the foam generating apparatus further includes a second flange 14, a plurality of first bolts 15 and a plurality of second bolts 16, wherein the bracket 05 is connected to the outer tub 11 through the second flange 14 and the plurality of first bolts 15, and the bracket 05 is connected to the motor 04 through the second flange 14 and the plurality of second bolts 16.

It should be noted that, when the foam collector 01 is the evaluation pipe 011, and the foam generating apparatus further includes the outer sleeve and the evaluation pipe sleeve 10, the foam generating apparatus may further include a second flange 14 to connect the bracket 05 and the outer cylinder 11 with the motor 04 via the second flange 14, respectively. The second flange 14 includes a first portion and a second portion, the outer diameter of the first portion is larger than that of the second portion, the first portion and the second portion of the second flange 14 both include an inner cavity, the bracket 05 can be disposed in the inner cavity of the second flange 14 or disposed outside the second flange 14, and since one end of the bracket 05 is connected to the motor 04 through the second rotating shaft, when the motor 04 is connected to the second portion of the second flange 14 through the second bolts 16, the bracket 05 can be fixed relative to the second flange 14, as long as it is ensured that the second flange 14 fixes the outer cylinder 11 and the motor 04, the bracket 05 can rotate without resistance, and the position where the bracket 05 is disposed is not specifically limited in the embodiments of the present application. Furthermore, the inner diameter of the inner cavity of the second flange 14 is larger than the outer diameter of the holder 05 to ensure that the holder 05 can rotate unimpeded when the holder 05 is fixed in the inner cavity of the second flange 14. The second flange 14 may be made of cast iron, aluminum alloy or alloy steel, so long as the second flange 14 is not deformed or damaged during use.

The outer diameter of the first bolt 15 may be larger than the outer diameter of the second bolt 16 or smaller than the outer diameter of the second bolt 16, and when the plurality of first bolts 15 fix the second flange 14 and the outer cylinder 11 and the plurality of second bolts 16 fix the second flange 14 and the motor 04, the second flange 14 may be provided with through holes having the same number and size as those of the plurality of first bolts 15 and the plurality of second bolts 16, so that the plurality of first bolts 15 may be inserted through the through holes to be connected to the outer cylinder 11 and the plurality of second bolts 16 may be inserted through the through holes to be connected to the motor 04. The first bolt 15 and the second bolt 16 may be made of copper, carbon steel or iron material, as long as the first bolt 15 and the second bolt 16 are not deformed or damaged in use, and this embodiment of the present invention is not particularly limited thereto.

In one implementation, the bracket 05 is disposed in the inner cavity of the second flange 14, the second flange 14 is provided with a plurality of second through holes 141 and a plurality of third through holes 142, the plurality of first bolts 15 are inserted into one end of the outer cylinder 11 close to the bracket 05 through the plurality of second through holes 141 to connect the second flange 14 with the outer cylinder 11, the plurality of second bolts 16 are inserted into one end of the motor 04 close to the bracket 05 through the plurality of third through holes 142 to connect the second flange 14 with the motor 04.

As shown in fig. 2, the foam generating apparatus further includes a heating jacket 17 and a heat insulating jacket 18, the heating jacket 17 is fitted over the outer tub 11, and the heat insulating jacket 18 is fitted over the heating jacket 17.

It should be noted that, when the foam collector 01 is the evaluation pipe 011, and the foam generating apparatus further comprises an outer sleeve and an evaluation pipe sleeve 10, a heating sleeve 17 and a heat insulating sleeve 18 are arranged in the foam generating apparatus, the heating sleeve 17 is sleeved on the outer sleeve 11, and the heat insulating sleeve 18 is sleeved on the heating sleeve 17, so that the real environment when the foam flows in the stratum after being generated is simulated by increasing the environmental temperature of the evaluation pipe 011, and the authenticity of foam performance evaluation is increased. The shape that the heating jacket 17 is the same with the shape of urceolus 11, is provided with the multichannel resistance wire in the heating jacket 17, and the heating jacket 17 outside is provided with the power, and after the heating jacket 17 circular telegram, the resistance wire in the heating jacket 17 can be interior heat energy with electric energy conversion to heat the evaluation pipe 011 with the heat that generates. The resistance wire can be iron chromium aluminium or iron chromium nickel, and the cross sectional area of resistance wire is confirmed by the material of preparation resistance wire, as long as guarantee the resistance wire can not appear burning or damage the phenomenon because the heat is too high when ohmic heating, this application embodiment does not specifically limit to this.

Further, the thermal insulating jacket 18 is fitted over the heating jacket 17, so that heat is insulated by the thermal insulating jacket 18 when the heating jacket 17 generates heat. The shape of the heat insulating sleeve 18 is the same as that of the heating sleeve 17, the inner diameter of the heat insulating sleeve 18 is the same as that of the heating sleeve 17, the heat insulating sleeve 18 can be directly sleeved on the outer wall of the heating sleeve 17, and can also be sleeved on the heating sleeve 17 in a bonding or threaded connection mode, as long as the heat insulating sleeve 18 and the heating sleeve 17 are firmly connected, and the embodiment of the application is not specifically limited to this. The thermal insulation sleeve 18 may be made of rock wool, high temperature resistant glass wool, aluminum silicate, microporous calcium silicate or composite silicate, the wall thickness of the thermal insulation sleeve 18 is determined by the material of the thermal insulation sleeve 18, and the better the thermal insulation performance of the material of the thermal insulation sleeve 18 is, the smaller the wall thickness of the thermal insulation sleeve 18 may be, which is not specifically limited in the embodiment of the present application.

Optionally, the foam generating device may further include a speed increasing unit 19, a third transmission shaft 192 is disposed on a first end 191 of the speed increasing unit 19, the first end 191 of the speed increasing unit 19 is connected to the first end of the bracket 05 through the third transmission shaft 192, and a second end 193 of the speed increasing unit 19 is connected to the second transmission shaft.

It should be noted that, when the flow rate of the mixed liquid entering the inner cavity of the first portion 031 of the stopper 03 through the liquid inlet 033 is too high, the lower rotation speed of the motor 04 may cause part of the mixed liquid to enter the foam collector 01 through the porous plate 02 without generating foam, and therefore, in order to sufficiently stir the mixed liquid, the speed increaser 19 and the third transmission shaft 192 may be further disposed between the second rotation shaft 041 and the bracket 05, so that the rotation speed of the bracket 05 is increased by the speed increaser 19, and the rotation speed of the stirring blades is relatively increased. The speed increaser 19 can be a parallel shaft gear speed increaser and a planetary gear speed increaser, the speed increaser 19 can have a speed increasing multiple of 1-3 times, for example, the rotating speed of the motor 04 with the rotating speed of 10000 r/min can be increased to 10000 r/min-30000 r/min, and the speed increaser 19 comprises a speed increasing adjusting device which is used for adjusting the specific speed increasing multiple of the speed increaser 19.

In addition, the third rotating shaft 192 may be a cylinder or a polygonal prism, the outer shapes and the dimensions of the third rotating shaft 192 and the second rotating shaft 041 may be the same or different, the third rotating shaft 192 may be made of cast iron, aluminum alloy or alloy steel, and the third rotating shaft 192 may be connected to the speed increaser 19 and the bracket 05 by bonding, welding or screwing.

Optionally, the foam generating device further comprises a rotational speed controller 20, and the rotational speed controller 20 is connected with the motor 04 and is used for controlling the rotational speed of the motor 04.

It should be noted that, since the motor 04 only has a switch and has a constant rotation speed after the motor 04 is turned on, the rotation speed controller 20 is provided in the foam generating apparatus, and the rotation speed controller 20 is connected to the motor 04, so that the rotation speed of the motor 04 is controlled by the rotation speed controller 20, and the motor 04 is changed from the constant rotation operation to the variable speed operation, so that the stirring speed of the stirring blade 09 for the mixed liquid can be controlled by adjusting the rotation speed of the motor 04. The rotation speed controller 20 includes a speed controller and a power converter, the speed controller may control the motor 04 to make the motor 04 start slowly, as long as the rotation speed controller 20 can realize accurate adjustment of the rotation speed of the motor 04, which is not specifically limited in this embodiment of the present application.

Before using the foam generating device that this application embodiment provided to generate the foam, can prepare the mixed liquid that waits to use with different proportions water, gas and foaming agent according to the demand to the foam, when using the foam generating device to generate the foam, open motor and speed controller among the foam generating device, adjust the rotational speed of motor through speed controller, in the motor pivoted, the second axis of rotation also rotates thereupon, because the rotational speed of motor is lower, consequently, through the acceleration rate multiple of adjusting the increaser, make the rotational speed of third axis of rotation further improve, and then drive the support of being connected with the third axis of rotation and the rotational speed of outer magnet steel improve and rotate. Because the recess on the support surrounds the outside at the second portion of end cap, therefore, although outer magnet steel and interior magnet steel do not contact, but change the magnetic field around the interior magnet steel when rotating along with outer magnet steel, interior magnet steel also can follow the rotation, and under the rotation of interior magnet steel, because interior magnet steel is connected with stirring vane through first axis of rotation, consequently first axis of rotation and stirring vane also follow the rotation. When stirring vane's rotational speed reached the rotational speed that can make the mixed liquid turn into the foam, the mixed liquid that will treat to use carries to the inner chamber of the first part of end cap through the inlet of end cap in to carry out high-speed stirring to the mixed liquid through stirring vane, thereby generate the foam, and the foam that generates can enter into the evaluation pipe through the perforated plate, realize the collection to the foam. And the evaluation pipe is connected with the outer cylinder through the evaluation pipe sleeve, the evaluation pipe sleeve is connected with the porous plate and the plug through the first flange, and the outer cylinder, the motor, the plug and the bracket are fixedly connected through the second flange, so that the foam production device has higher stability. And set up heating jacket and insulation cover on the outer wall of urceolus, can make the ambient temperature of evaluation pipe be in the oil deposit temperature value through heating jacket and insulation cover, improved the evaluation authenticity to the foam that generates. Through using the foam generation device that this application embodiment provided, can last to carrying mixed liquid in the end cap through the inlet, make the foam volume that the foam generation device generated can be according to the accurate control of demand, both avoided mixed liquid's waste, improved the flexibility of production foam again. And when the foam collector is an evaluation pipe, the heating sleeve and the heat insulation sleeve are arranged on the outer cylinder of the evaluation pipe, so that the evaluation work of the foam is in the real temperature of the oil reservoir, and the accuracy and the authenticity of the evaluation result are improved.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (4)

1. A foam generating device is characterized by comprising a foam collector (01), a porous plate (02), a plug (03), a motor (04), a bracket (05), external magnetic steel (06), internal magnetic steel (07), a sliding sleeve (08) and stirring blades (09);

the plug (03) comprises a first part (031) and a second part (032), the opening of the plug (03) is positioned in the first part (031), the inner cavity of the first part (031) is communicated with the inner cavity of the second part (032), the inner diameter of the first part (031) is larger than that of the second part (032), and a liquid inlet (033) is arranged on the side wall of the plug (03);

the sliding sleeve (08) and the stirring blades (09) are positioned in the inner cavity of the first part (031), the internal magnetic steel (07) is positioned in the inner cavity of the second part (032), a first rotating shaft (071) is arranged on the internal magnetic steel (07), a first through hole (081) is formed in the sliding sleeve (08), and the first rotating shaft (071) penetrates through the first through hole (081) to be connected with the stirring blades (09);

a second rotating shaft (041) is arranged on the motor (04), the bracket (05) is connected with the second rotating shaft (041), a groove (051) is formed in the bracket (05), the outer magnetic steel (06) is arranged on the groove wall of the groove (051), and the groove (051) surrounds the outside of the second part (032);

the foam collector (01) is an evaluation pipe (011), and the foam generating device further comprises an evaluation pipe sleeve (10) and an outer cylinder (11);

the first end of the evaluation pipe sleeve (10) is sleeved at one end of the evaluation pipe (011) in a welding, bonding or threaded connection mode, the second end of the evaluation pipe sleeve (10) is sleeved on the porous plate (02) in a welding, bonding or threaded connection mode, the end face of the second end of the evaluation pipe sleeve (10) and the second plate face (022) of the porous plate (02) cover the opening of the plug (03) together, and therefore the evaluation pipe (011) is connected with the first plate face (021) of the porous plate (02) through the evaluation pipe sleeve (10);

the foam generating device further comprises a pull rod (12), one end of the pull rod (12) is connected with the first end of the evaluation pipe sleeve (10);

the foam generating device further comprises a first flange (13), and the plug (03) is connected with the porous plate (02) through the first flange (13) and the evaluation sleeve (10);

the foam generating device also comprises a heating sleeve (17) and a heat-insulating sleeve (18);

the heating sleeve (17) is sleeved on the outer cylinder (11), and the heat-insulating sleeve (18) is sleeved on the heating sleeve (17);

the foam generating device further comprises a speed increaser (19);

a third transmission shaft (192) is arranged at the first end (191) of the speed increaser (19), the first end (191) of the speed increaser (19) is connected with the first end of the bracket (05) through the third transmission shaft (192), and the second end (193) of the speed increaser (19) is connected with the second rotating shaft (041);

the foam generating device further comprises a rotational speed controller (20); the rotating speed controller (20) is connected with the motor (04) and is used for controlling the rotating speed of the motor (04).

2. Foam generating device according to claim 1, wherein the communicating lumen formed by the communicating lumen of the first part (031) and the lumen of the second part (032) comprises a first lumen (034) and a second lumen (035), the inner diameter of the first lumen (034) being larger than the inner diameter of the second lumen (035);

be provided with oblique through-hole (036) on the lateral wall of first portion (031), first hole site (037) of oblique through-hole (036) is in on the outer wall of first portion (031), second hole site (038) of oblique through-hole (036) is in on the inner wall of first inner chamber (034), first hole site (037) is liquid inlet (033).

3. Foam generating device according to claim 1, further comprising a second flange (14), a plurality of first bolts (15) and a plurality of second bolts (16);

the bracket (05) is connected with the outer cylinder (11) through the second flange (14) and the first bolts (15);

the bracket (05) is connected to the motor (04) via the second flange (14) and the second bolts (16).

4. Foam generating device according to claim 3, wherein the bracket (05) is arranged in an inner cavity of the second flange (14), the second flange (14) being provided with a plurality of second through holes (141) and a plurality of third through holes (142);

the first bolts (15) penetrate through the second through holes (141) respectively and are inserted into one end, close to the bracket (05), of the outer cylinder (11), so that the second flange (14) is connected with the outer cylinder (11);

the second bolts (16) penetrate through the third through holes (142) respectively and are inserted into one end, close to the support (05), of the motor (04), so that the second flange (14) is connected with the motor (04).

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