CN112630103A - Viscosity measuring device - Google Patents
Viscosity measuring device Download PDFInfo
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- CN112630103A CN112630103A CN202110022137.7A CN202110022137A CN112630103A CN 112630103 A CN112630103 A CN 112630103A CN 202110022137 A CN202110022137 A CN 202110022137A CN 112630103 A CN112630103 A CN 112630103A
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/14—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
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Abstract
The application discloses viscosity measurement device belongs to oil and gas technical field. The embodiment of the application provides a viscosity measurement device, owing to set up control mechanism and viscosity measurement mechanism, when turning to sour and calcium carbonate when taking place the reaction in the churn, viscosity measurement mechanism's lower extreme soaks in the solution that turns to sour and calcium carbonate reaction, consequently, can directly control viscosity measurement mechanism through control mechanism and measure the viscosity of this solution to the foam that need not wait for the reaction to produce disappears, has reduced latency, and then has improved viscosity measurement efficiency.
Description
Technical Field
The application relates to the technical field of petroleum and natural gas. In particular to a viscosity measuring device.
Background
In the process of oil and gas development, acidification and yield increase through diverting acid are important measures for carbonate reservoir transformation. The diverting acid comprises an acid liquid and a diverting agent, when the diverting acid is used for acidification and production increase, the diverting acid is injected into the carbonate reservoir, the acid liquid reacts with the carbonate, the concentration of the acid liquid is reduced, the viscosity of the diverting agent is increased rapidly, the acid liquid with lower viscosity is forced to enter the reservoir with lower permeability, and the low-permeability reservoir is reformed, so that the purpose of acidification and production increase is achieved. It follows that viscosity has a significant effect on acid stimulation. Therefore, before the carbonate reservoir is modified by diverting acid, the viscosity of the diverting acid reacting with the carbonate needs to be measured, and the carbonate is taken as calcium carbonate as an example.
In the related technology, firstly, the diverting acid is added into a reaction container containing calcium carbonate powder, the diverting acid and the calcium carbonate powder react in the reaction container, and after the reaction is completed, the viscometer is immersed in the reaction container to measure the viscosity of the solution after the reaction.
However, the diversion acid reacts with calcium carbonate to generate a large amount of foam, and in the related art, the viscosity can be measured only after the foam disappears, and the waiting time is long, so that the viscosity measurement efficiency is low.
Disclosure of Invention
The embodiment of the application provides a viscosity measurement device, can improve the measurement efficiency of viscosity. The specific technical scheme is as follows:
the embodiment of the application provides a viscosity measurement device, its characterized in that, the device includes: the device comprises a support, a stirring cylinder, a stirring mechanism, a viscosity measuring mechanism and a control mechanism;
the stirring cylinder, the stirring mechanism and the viscosity measuring mechanism are arranged on the bracket;
the lower end of the viscosity measuring mechanism is connected with the upper end of the stirring cylinder body through an opening at the upper end of the stirring cylinder body;
the stirring paddle of the stirring mechanism is positioned in the stirring cylinder;
the stirring mechanism and the viscosity measuring mechanism are both electrically connected with the control mechanism;
the stirring cylinder is used for containing diverting acid and calcium carbonate, and the diverting acid and the calcium carbonate react in the stirring cylinder;
when the steering acid and the calcium carbonate are contained in the stirring cylinder, the control mechanism is used for controlling the stirring paddle to start or stop;
the control mechanism is further used for controlling the viscosity measuring mechanism to measure the viscosity of the solution in the stirring cylinder after the stirring of the stirring paddle is stopped; the solution is obtained by mixing the diverting acid and the calcium carbonate;
wherein when the viscosity measuring mechanism measures the viscosity of the solution, the lower end of the viscosity measuring mechanism is immersed in the solution.
In one possible implementation, the apparatus further includes: a turning shaft;
the turnover shaft is positioned outside the stirring cylinder body and is fixed in the middle of the stirring cylinder body;
both ends of the turnover shaft are connected with the bracket and are electrically connected with the control mechanism;
and the control mechanism is used for controlling the turnover shaft to turn over after the viscosity measurement mechanism finishes viscosity measurement, and pouring out the solution in the stirring barrel in the turning process.
In another possible implementation manner, the apparatus further includes: a pressure measuring instrument;
the pressure measuring instrument is fixed outside the stirring cylinder and connected with the stirring cylinder;
the pressure measuring instrument is electrically connected with the control mechanism;
the pressure measuring instrument is used for measuring the pressure in the mixing drum and sending the pressure to the control mechanism;
and the control mechanism is used for receiving the pressure and sending out an alarm signal when the pressure is greater than a first pressure set value.
In another possible implementation manner, the stirring mechanism further includes: the stirring shaft, the first motor, the magnet seat, the first fixing flange, the second fixing flange and the supporting rod;
the stirring shaft is provided with the stirring paddle;
the lower end of the stirring shaft penetrates through the bottom of the stirring barrel body and is connected with a motor shaft of the magnet seat and the first motor, and the magnet is arranged in the magnet seat;
the upper end of the first motor is connected with a first fixed flange, the first fixed flange is connected with one end of the supporting rod, the other end of the supporting rod is connected with a second fixed flange, and the second fixed flange is connected with the lower end of the stirring cylinder;
the first motor is electrically connected with the control mechanism;
the control mechanism is used for controlling the starting, the closing and the rotating speed of the first motor.
In another possible implementation manner, the apparatus further includes: a protection mechanism;
the protection mechanism is located above the stirring paddle and embedded on the inner wall of the stirring barrel.
In another possible implementation, the protection mechanism is a protection cover with a net structure.
In another possible implementation, the protective cover is in-line.
In another possible implementation, the protective cover is in the shape of a polygon.
In another possible implementation, the viscosity measuring mechanism includes: the device comprises a machine body, a rotating part, an outer rotary drum, an inner drum, a second motor and a dial;
the machine body is provided with the dial;
the rotating part is arranged in the machine body, the upper end of the rotating part is connected with the second motor, and the second motor is electrically connected with the control mechanism;
the lower end of the rotating part is connected with the outer rotating cylinder, the inner cylinder is arranged in the outer rotating cylinder, and the upper end of the inner cylinder is connected with the machine body;
the control mechanism is used for controlling the starting, the closing and the rotating speed of the second motor;
when the solution is contained in the stirring cylinder body, the lower end of the outer rotating cylinder and the lower end of the inner cylinder are both immersed in the solution.
In another possible implementation manner, the lower end of the viscosity measuring mechanism is connected with the upper end of the stirring cylinder body through a screw thread and is sealed through a sealing ring.
The technical scheme provided by the embodiment of the application has the following beneficial effects:
the embodiment of the application provides a viscosity measurement device, owing to set up control mechanism and viscosity measurement mechanism, when turning to sour and calcium carbonate when taking place the reaction in the churn, viscosity measurement mechanism's lower extreme soaks in the solution that turns to sour and calcium carbonate reaction, consequently, can directly control viscosity measurement mechanism through control mechanism and measure the viscosity of this solution to the foam that need not wait for the reaction to produce disappears, has reduced latency, and then has improved viscosity measurement efficiency.
Drawings
FIG. 1 is a schematic view of a viscosity measuring device provided in an embodiment of the present application;
fig. 2 is a schematic view of another viscosity measuring device provided in the embodiments of the present application.
The reference numerals denote:
1-a bracket, 2-a stirring cylinder body, 3-a stirring mechanism, 4-a viscosity measuring mechanism, 5-a control mechanism,
6-a turnover shaft, 7-a pressure measuring instrument, 8-a protection mechanism, 9-a sealing ring, 301-a stirring paddle,
302-stirring shaft, 303-first motor, 304-magnet, 305-magnet holder, 306-first fixed flange,
307-second fixed flange, 308-support bar, 309-first rolling bearing, 310-second rolling bearing,
311-a third rolling bearing, 401-a body, 402-a rotating component, 403-an outer rotary drum, 404-an inner rotary drum,
405-a second motor, 406-a dial.
Detailed Description
In order to make the technical solutions and advantages of the present application more clear, the following describes the embodiments of the present application in further detail.
The embodiment of the present application provides a viscosity measurement device, see fig. 1, the device includes: the device comprises a support 1, a stirring cylinder 2, a stirring mechanism 3, a viscosity measuring mechanism 4 and a control mechanism 5;
the support 1 is provided with a stirring cylinder 2, a stirring mechanism 3 and a viscosity measuring mechanism 4;
the lower end of the viscosity measuring mechanism 4 is connected with the upper end of the stirring cylinder 2 through an opening at the upper end of the stirring cylinder 2;
the stirring paddle 301 of the stirring mechanism 3 is positioned in the stirring cylinder 2;
the stirring mechanism 3 and the viscosity measuring mechanism 4 are both electrically connected with the control mechanism 5;
the stirring cylinder 2 is used for containing the diverting acid and the calcium carbonate, and the diverting acid and the calcium carbonate react in the stirring cylinder 2;
when the steering acid and the calcium carbonate are contained in the stirring cylinder body 2, the control mechanism 5 is used for controlling the stirring paddle 301 to start or stop;
the control mechanism 5 is also used for controlling the viscosity measuring mechanism 4 to measure the viscosity of the solution in the stirring cylinder 2 after the stirring paddle 301 stops stirring; the solution is obtained by mixing diverting acid and calcium carbonate;
wherein, when the viscosity measuring mechanism 4 measures the viscosity of the solution, the lower end of the viscosity measuring mechanism 4 is immersed in the solution.
The viscosity measuring device that this application embodiment provided, owing to set up control mechanism 5 and viscosity measuring mechanism 4, when turning to acid and calcium carbonate and taking place the reaction in stirring barrel 2, the lower extreme of viscosity measuring mechanism 4 soaks in the solution that turns to acid and calcium carbonate reaction, consequently, can directly control viscosity measuring mechanism 4 through control mechanism 5 and measure the viscosity of this solution to the foam that need not wait for the reaction to produce disappears, has reduced latency, and then has improved viscosity measurement efficiency.
Moreover, the reaction vessel in the related art is an open vessel, and a large amount of foam generated in the reaction process of the diverted acid and the calcium carbonate overflows the reaction vessel, so that the experimental site is polluted. Statistics show that in a viscosity measurement experiment carried out for more than 80 times in 2017, the foam overflows the reaction vessel up to 403 times. In addition, because the reaction container in the related art is an open container and the reaction time of the diverting acid and the calcium carbonate is long, the acid liquid can volatilize in the reaction process, so that a large amount of acid gas is inhaled by a detector, and the health of the detector is influenced.
And the viscosity measurement device that this application embodiment provided, stirring barrel 2 are closed container, consequently, the foam that produces in the reaction process can not spill over, consequently, can not pollute the laboratory site, can improve the cleanliness in laboratory site. And the device can reduce the volatilization of acidizing fluid, reduces the harm to the measurement personnel.
Moreover, because the diverting acid reacts with the calcium carbonate to generate a large amount of foam, the liquid cannot be fully stirred in the related technology, and only the natural reaction can be waited, so that the reaction time is long. The viscosity measuring device provided by the embodiment of the application can directly and fully stir the solution through the stirring mechanism 3 in the reaction process, thereby shortening the reaction time and further improving the viscosity measuring efficiency.
It should be noted that, in the embodiment of the present application, the electrical connection may be a circuit connection or a wireless connection. The Wireless connection includes an infrared connection, a Wireless local area network, and a WiFi (Wireless Fidelity) network connection. In the embodiments of the present application, this is not particularly limited.
Introduction of the agitation cylinder 2: in the present embodiment, the upper end of the agitation cylinder 2 is open, and the upper end of the agitation cylinder 2 is connected to the lower end of the viscosity measuring mechanism 4 through the opening.
In one possible implementation, the lower end of the viscosity measuring mechanism 4 is screwed to the upper end of the mixing drum 2 and is sealed by a sealing ring 9.
In the implementation mode, the stirring cylinder body 2 and the viscosity measuring mechanism 4 are connected through screw threads and sealed through the sealing ring 9, so that the sealing performance of the stirring cylinder body 2 can be guaranteed, and the leakage of solution is avoided. When the measurement is completed, the viscosity measuring mechanism 4 can be detached from the stirring cylinder 2 through the screw threads, so that the solution in the stirring cylinder 2 can be poured out conveniently.
In the embodiment of the present application, the stirring cylinder 2 and the viscosity measuring mechanism 4 are connected by the screw thread, so that the viscosity measuring mechanism 4 can be conveniently detached from the stirring cylinder 2.
In a possible implementation manner, the volume of the stirring cylinder 2 can be set and changed according to needs, and in the embodiment of the present application, this is not particularly limited. For example, the agitation cylinder 2 has a volume of 1L.
In a possible implementation manner, the material of the stirring cylinder 2 may be set and changed as needed, and in the embodiment of the present application, this is not particularly limited. For example, the material of the stirring cylinder 2 is an alloy, and the alloy may be stainless steel.
In a possible implementation manner, the pressure resistance value of the stirring cylinder 2 may be set and changed as needed, and in the embodiment of the present application, this is not particularly limited. For example, the pressure resistance of the agitation cylinder 2 is 10 MPa.
In a possible implementation manner, the type of the sealing ring 9 may be set and changed as required, and in the embodiment of the present application, this is not particularly limited. For example, the seal ring 9 is an O-ring 9.
Introduction of the control mechanism 5: in a possible implementation manner, the control mechanism 5 may be a controller, and the type of the controller may be set and changed as needed, which is not particularly limited in the embodiment of the present application. For example, the Controller is a PLC (Programmable Logic Controller).
In one possible implementation, the controller may be connected to a terminal, and the terminal provides a display interface, and when the solution of the diverting acid and the calcium carbonate mixed in the stirring cylinder 2 is stirred by the stirring mechanism 3, the stirring speed of the stirring paddle 301 is displayed on the display interface through the terminal. When the viscosity of the solution in the agitation cylinder 2 is measured by the viscosity measuring mechanism 4, the measured viscosity is displayed on the display interface by the terminal.
In a possible implementation manner, the control mechanism 5 may control the stirring time period of the stirring paddle 301, and control the stirring paddle 301 to stop stirring when the stirring time period reaches the set stirring time period value. The stirring time period setting value may be set and changed as needed, and is not particularly limited in the embodiment of the present application. For example, the stirring time period setting is 40min, 50min or 60 min.
In a possible implementation manner, the control mechanism 5 may control the viscosity measuring mechanism 4 to measure the viscosity of the solution in the stirring cylinder 2 after the stirring paddle 301 stops stirring.
In another possible implementation manner, the control mechanism 5 may also control the viscosity measuring mechanism 4 to measure the viscosity of the solution in the stirring cylinder 2 in real time during the stirring process of the stirring paddle 301. In this implementation, the viscosity measuring mechanism 4 may send the measured viscosity to the control mechanism 5 in real time or periodically, and the control mechanism 5 receives the viscosity and displays the viscosity on the display interface through the terminal.
The manner in which the viscosity is displayed on the terminal may be set and changed as needed, and is not particularly limited in the embodiments of the present application. For example, the viscosity may be displayed on the terminal by a line graph.
In the embodiment of the application, the control mechanism 5 displays the viscosities at different moments on the display interface through the terminal, so that the detection personnel can visually and clearly see the viscosities corresponding to different moments in the reaction process, the maximum value of the viscosity is determined, and a theoretical basis is provided for acidification and production increase.
Introduction of the turning shaft 6: in one possible implementation, referring to fig. 2, the apparatus further includes: a turning shaft 6;
the turnover shaft 6 is positioned outside the stirring cylinder body 2 and is fixed in the middle of the stirring cylinder body 2;
both ends of the turning shaft 6 are connected with the bracket 1 and are electrically connected with the control mechanism 5;
and the control mechanism 5 is used for controlling the turnover shaft 6 to turn over after the viscosity measurement mechanism 4 finishes viscosity measurement, and pouring out the solution in the stirring cylinder body 2 in the turning process.
In this implementation, after the viscosity measurement is completed, the viscosity measurement mechanism 4 may send a measurement completion signal to the control mechanism 5, and the control mechanism 5 receives the measurement completion signal and displays the prompt information on the display interface through the terminal. After receiving the prompt message, the detection personnel corresponding to the terminal detaches the viscosity measuring mechanism 4 from the stirring cylinder 2. At the moment, the control mechanism 5 controls the overturning shaft 6 to overturn, and the solution in the stirring cylinder body 2 is poured out in the overturning process.
In another possible implementation manner, after the viscosity measuring mechanism 4 is detached from the stirring cylinder 2, the stirring cylinder 2 may also be manually turned over by the inspector, so as to pour out the solution in the stirring cylinder 2. In the embodiment of the present application, the two implementation manners are not particularly limited.
In a possible implementation mode, when the control mechanism 5 controls the turnover shaft 6 to turn over, the control mechanism 5 can send a turnover instruction to the turnover shaft 6, the turnover shaft 6 receives the turnover instruction to turn over, and the stirring cylinder 2 is driven to turn over in the turnover process, so that the solution in the stirring cylinder 2 is poured out.
In a possible implementation manner, the material of the turning shaft 6 may be set and changed as needed, and in the embodiment of the present application, this is not particularly limited. For example, the material of the tumble shaft 6 is an alloy, and the alloy is stainless steel.
In a possible implementation manner, the connection manner between the two ends of the turning shaft and the bracket may be set and changed as needed, and this is not particularly limited in the embodiment of the present application. For example, the connection means is a detachable connection, which may be a nut connection.
The shape of the bracket may be set and changed as needed, which is not particularly limited in the embodiments of the present application. For example, the stent is Z-shaped and can be folded telescopically.
The material of the bracket may also be set and changed as needed, which is not specifically limited in the embodiment of the present application. For example, the material of the bracket is an alloy, and the alloy can be stainless steel.
Introduction of the pressure measuring instrument 7: in one possible implementation, the apparatus further includes: a pressure measuring instrument 7;
the pressure measuring instrument 7 is fixed outside the stirring cylinder 2 and is connected with the stirring cylinder 2;
the pressure measuring instrument 7 is electrically connected with the control mechanism 5;
the pressure measuring instrument 7 is used for measuring the pressure in the stirring cylinder body 2 and sending the pressure to the control mechanism 5;
and the control mechanism 5 is used for receiving the pressure and sending out an alarm signal when the pressure is greater than the first pressure set value.
In this implementation, the pressure in the mixing drum 2 is measured by the pressure measuring instrument 7, and when the pressure is greater than the first pressure set value, an alarm signal is sent. The alarm signal may be an acoustic signal, an optical signal, or an acousto-optic signal. In the embodiments of the present application, this is not particularly limited.
In one possible embodiment, the control means 5 can be provided with an alarm device, by means of which an alarm signal is emitted.
In another possible implementation manner, the control mechanism 5 may further send alarm information to the terminal, and after the detection personnel corresponding to the terminal receives the alarm information, the viscosity measurement mechanism 4 may be detached from the stirring cylinder 2, so as to relieve the pressure of the stirring cylinder 2. The alarm information may be a call request or a short message. In the embodiments of the present application, this is not particularly limited.
In a possible implementation manner, when the pressure is greater than the first pressure set value, the control mechanism 5 may further control the stirring paddle 301 to stop stirring, so as to avoid generating foam to increase the pressure in the stirring cylinder 2.
The first pressure setting value is smaller than the pressure-resistant value of the stirring cylinder 2, and the first pressure setting value may be set and changed as needed, which is not specifically limited in the embodiment of the present application.
In a possible implementation manner, the connection manner of the pressure measuring instrument 7 and the stirring cylinder 2 may be a detachable connection, which may be set and changed as needed, and this is not particularly limited in the embodiment of the present application.
Introduction of the stirring mechanism 3: in a possible implementation, the stirring mechanism 3 further comprises: the stirring shaft 302, the first motor 303, the magnet 304, the magnet base 305, the first fixed flange 306, the second fixed flange 307 and the support rod 308;
the stirring shaft 302 is provided with a stirring paddle 301;
the lower end of the stirring shaft 302 passes through the bottom of the stirring cylinder 2 and the magnet base 305 to be connected with a motor shaft of the first motor 303, and a magnet 304 is arranged in the magnet base 305;
the upper end of the first motor 303 is connected with a first fixed flange 306, the first fixed flange 306 is connected with one end of a support rod 308, the other end of the support rod 308 is connected with a second fixed flange 307, and the second fixed flange 307 is connected with the lower end of the stirring cylinder 2;
the first motor 303 is electrically connected with the control mechanism 5;
and the control mechanism 5 is used for controlling the starting, the closing and the rotating speed of the first motor 303.
In this implementation, the control mechanism 5 may send a first start instruction to the first motor 303, where the first start instruction is used to instruct the first motor 303 to start, the first motor 303 receives the first start instruction, starts to rotate, and drives the stirring paddle 301 to rotate through the stirring shaft 302 in the rotating process, so as to stir the solution in the stirring cylinder 2.
When the stirring time reaches the stirring time set value, the control mechanism 5 may send a first stop instruction to the first motor 303, where the first stop instruction is used to instruct the first motor 303 to stop rotating, and the first motor 303 receives the first stop instruction to stop rotating, so that the stirring paddle 301 also stops stirring. The control mechanism 5 can control the viscosity measuring mechanism 4 to measure the viscosity of the solution in the stirring cylinder 2.
In a possible implementation, the control means 5 may also control the rotational speed of the first electric machine 303. Specifically, the control mechanism 5 may send a first rotation speed command to the first motor 303, the first rotation speed command being used to instruct the first motor 303 to rotate at a first rotation speed. The first motor 303 receives the first rotational speed command and rotates at a first rotational speed.
In this application embodiment, control mechanism 5 comes control rabbling mechanism 3 to stir the solution in the agitator barrel 2, can accelerate the reaction of the sour and calcium carbonate of turn-around in the agitator barrel 2, shortens reaction time to improve viscosity measurement efficiency. In addition, the control mechanism 5 can also control the rotating speed of the first motor 303, so as to control the stirring speed of the stirring paddle 301, shorten the reaction time to a certain extent, and improve the viscosity measurement efficiency.
In a possible implementation manner, the stirring paddle 301 is connected with the first motor 303 through the stirring shaft 302 via the magnet base 305, and according to the principle that magnets attract each other in a special shape and repel each other in the same polarity, the stirring shaft 302 is driven by the motor shaft of the first motor 303 and the stirring shaft 302 through the magnet 304 to rotate. Also, the stirring shaft 302 is centered by the first rolling bearing 309 and the second rolling bearing 310, thereby reducing the rotational torque. In addition, a third rolling bearing 311 is sleeved outside the motor shaft of the first motor 303, and the third rolling bearing 311 can realize that the motor shaft of the first motor 303 and the stirring shaft 302 rotate concentrically.
The rotation speed of the first motor 303 may be set and changed as needed, and is not particularly limited in the embodiment of the present application. For example, the first motor 303 may be rotated at a speed of no more than 1500 rpm.
The number of the paddles 301 may be set and changed as needed, and is not particularly limited in the embodiment of the present application. For example, the number of paddles 301 is 3 or 6.
The material of the paddle 301 may be set and changed as needed, and is not particularly limited in the embodiment of the present application. For example, the material of the paddle 301 is cast iron or an alloy, and the alloy may be stainless steel.
Because the stirring paddle 301 directly contacts with the acid liquor, and the acid liquor has corrosiveness, the surface of the stirring paddle 301 can be subjected to anticorrosion treatment, and an anticorrosion layer is coated on the surface of the stirring paddle 301, so that the corrosion of the stirring paddle 301 is slowed down, and the service life of the stirring paddle 301 is prolonged.
In a possible implementation manner, the manner in which the first fixing flange 306 and the second fixing flange 307 are connected with the supporting rod 308 may be set and changed as needed, and this is not particularly limited in the embodiment of the present application. For example, the connection may be a detachable connection or a fixed connection. When the connection is a detachable connection, the detachable connection can be a nut connection; when the connection is a fixed connection, the fixed connection may be a weld.
In a possible implementation manner, the number of the supporting rods 308 may be set and changed as needed, and is not particularly limited in the embodiment of the present application. For example, the number of support rods 308 is 3 or 4. Wherein, a plurality of support rods 308 can be circumferentially uniformly or non-uniformly arranged between the first motor 303 and the stirring cylinder 2. For example, the number of the support rods 308 is 4, and the 4 support rods 308 may be uniformly arranged between the first motor 303 and the agitation cylinder 2 in the circumferential direction.
In a possible implementation manner, the material of the supporting rod 308 may be set and changed as needed, and is not particularly limited in the embodiment of the present application. For example, the material of the support rod 308 is an alloy, which may be stainless steel.
In the embodiment of the present application, the plurality of support rods 308 are disposed between the first motor 303 and the stirring cylinder 2, so that the stirring cylinder 2 and the first motor 303 can be connected into a whole, and the portability of the device is improved.
Introduction of viscosity measuring mechanism 4: in one possible implementation, the viscosity measuring means 4 comprises: body 401, rotary part 402, outer rotary drum 403, inner drum 404, second motor 405 and dial 406;
the body 401 is provided with a dial 406;
a rotating part 402 is arranged in the machine body 401, the upper end of the rotating part 402 is connected with a second motor 405, and the second motor 405 is electrically connected with the control mechanism 5;
the lower end of the rotating part 402 is connected with an outer rotating cylinder 403, an inner cylinder 404 is arranged in the outer rotating cylinder 403, and the upper end of the inner cylinder 404 is connected with the machine body 401;
a control mechanism 5 for controlling the start, the stop and the rotation speed of the second motor 405;
when the stirring cylinder 2 contains the solution, the lower end of the outer cylinder 403 and the lower end of the inner cylinder 404 are both immersed in the solution.
In this implementation, the control mechanism 5 may send a second start instruction to the second motor 405, where the second start instruction is used to instruct the second motor 405 to start, and the second motor 405 starts to rotate after receiving the second start instruction. Since the second motor 405 is connected to the upper end of the rotating part 402 and the lower end of the rotating part 402 is connected to the outer rotating cylinder 403, the second motor 405 can drive the outer rotating cylinder 403 to rotate through the rotating part 402 during the rotation process. The outer cylinder 403 and the inner cylinder 404 are immersed in the solution of the reaction of diverting acid and calcium carbonate, and when the outer cylinder 403 rotates, the solution in the annular space between the outer cylinder 403 and the inner cylinder 404 is driven to rotate. The inner barrel 404 rotates at an angle due to the viscosity of the solution of the diverted acid reacting with the calcium carbonate. The rotation angle is proportional to the viscosity of the solution, so the measurement of the viscosity is converted into the measurement of the rotation angle of the inner cylinder 404, and the rotation angle is converted into the viscosity and can be directly read through the dial 406, so that the viscosity of the solution is obtained.
When the viscosity measurement is completed, the control mechanism 5 may send a second stop instruction to the second motor 405, where the second stop instruction is used to instruct the second motor 405 to stop rotating, and the second motor 405 receives the second stop instruction to stop rotating, so that the inner cylinder 404 stops rotating.
In one possible implementation, the control means 5 may also control the rotational speed of the second electric motor 405. Specifically, the control mechanism 5 may send a second rotation speed instruction to the second motor 405, where the second rotation speed instruction is used to instruct the second motor 405 to rotate at a second rotation speed. The second motor 405 receives the second rotational speed command to rotate at a second rotational speed.
In the embodiment of the application, because the lower end of the viscosity measuring mechanism 4 is immersed in the solution of the reaction of the diverting acid and the calcium carbonate, after the stirring is stopped, the viscosity measuring mechanism 4 can be directly controlled by the control mechanism 5 to measure the viscosity of the solution in the stirring cylinder 2, so that the foam generated by the reaction does not need to be waited for to disappear, the waiting time is reduced, and the viscosity measuring efficiency is improved.
In a possible implementation manner, the rotation speed of the second motor 405 may be set and changed as needed, and in the embodiment of the present application, this is not particularly limited. For example, the rotational speed of the second motor 405 does not exceed 600 r/min.
In a possible implementation manner, the outer rotary cylinder 403 and the lower end of the rotating component 402 may be connected by a screw thread, which is not particularly limited in the embodiment of the present application. The outer rotating cylinder 403 is connected with the lower end of the rotating component 402 through a screw thread, so that the outer rotating cylinder is convenient to disassemble and clean.
In a possible implementation manner, the upper end of the inner cylinder 404 and the machine body 401 may be connected by a screw thread, or may be embedded in the machine body 401, which is not particularly limited in the embodiment of the present application.
Introduction of the protection mechanism 8: in one possible implementation, the apparatus further includes: a protection mechanism 8;
the protection mechanism 8 is positioned above the stirring paddle 301 and embedded on the inner wall of the stirring cylinder 2.
In this implementation, the protection mechanism 8 is used to protect the paddle 301.
It should be noted that, since the inner cylinder 404 and the outer cylinder 403 are both connected to the machine body 401, the inner cylinder and the outer cylinder may loosen and fall over a long time due to the influence of the stirring mechanism 3. In the embodiment of the present application, the protection mechanism 8 is disposed above the stirring paddle 301, and when the inner cylinder 404 or the outer cylinder 403 falls, the inner cylinder can avoid falling onto the stirring paddle 301 to damage the stirring paddle 301, so as to prolong the service life of the stirring paddle 301. In addition, when the inner cylinder 404 or the outer cylinder 403 falls down during the high-speed stirring process of the stirring paddle 301, not only the stirring paddle 301 is damaged, but also the safety of the whole device is affected. Therefore, the arrangement of the protection mechanism 8 above the paddle 301 can also improve the safety of the apparatus.
In a possible implementation, the protection mechanism 8 may be embedded on the inner wall of the stirring cylinder 2 by any means, which is not particularly limited in the embodiment of the present application. For example, the protection mechanism 8 may be welded to the inner wall of the agitation cylinder 2.
In one possible implementation, the protection means 8 may be a protective cover of a mesh structure. The protective cover adopts a net structure, the stirring of the stirring paddle 301 is not influenced, and the influence on the reaction of the steering acid and the calcium carbonate can be avoided.
In a possible implementation manner, the shape of the protection cover may be set and changed as needed, and in the embodiment of the present application, this is not particularly limited. For example, the shape of the protective cover is a straight line shape or a zigzag shape. When the protective cover is in a straight shape, both ends of the protective cover can be directly welded to the inner wall of the agitation cylinder 2. When the protective cover has a shape of a zigzag, the top of the zigzag may be covered above the paddle 301, and both ends of the zigzag may be welded to the inner wall of the agitation cylinder 2.
The viscosity measuring device that this application embodiment provided, owing to set up control mechanism 5 and viscosity measuring mechanism 4, when turning to acid and calcium carbonate and taking place the reaction in stirring barrel 2, the lower extreme of viscosity measuring mechanism 4 soaks in the solution that turns to acid and calcium carbonate reaction, consequently, can directly control viscosity measuring mechanism 4 through control mechanism 5 and measure the viscosity of this solution to the foam that need not wait for the reaction to produce disappears, has reduced latency, and then has improved viscosity measurement efficiency.
The viscosity measuring device provided in the present application will be described below by way of specific examples.
Example 1
Adding 400mL of diverting acid and 60.17g of calcium carbonate powder into an open reaction container, and allowing the diverting acid and the calcium carbonate powder to naturally react; the same volume of diverting acid and the same mass of calcium carbonate powder were added to the viscosity measuring device provided herein and stirred at a speed of 1500 r/min. Three sets of experiments were performed in parallel and the reaction times were recorded for each of the three sets, see table 1.
TABLE 1 diversion acid to calcium carbonate reaction time
As can be seen from table 1: the reaction time in the viscosity measuring device is shortened greatly, compared with the reaction time in the open container, the reaction time in the viscosity measuring device is shortened by 570min at most, 558min at least and 563min on average. Therefore, the viscosity measuring device provided by the application can greatly shorten the reaction time of the diverting acid and the calcium carbonate.
Example 2
Adding 400mL of diverting acid and 60.17g of calcium carbonate powder into an open reaction container, allowing the diverting acid and the calcium carbonate powder to naturally react, and measuring the viscosity of the solution after the reaction is completed; adding the same volume of diverting acid and the same mass of calcium carbonate powder into the viscosity measuring device provided by the application, stirring at the rotating speed of 1500r/min, and measuring the viscosity of the solution after the reaction is completed. Three sets of experiments were performed in parallel and the viscosities of the solutions were recorded for each of the three sets, see table 2.
TABLE 2 solution viscosity after complete reaction of diverting acid with calcium carbonate
As can be seen from table 2: the maximum error of the three groups of experimental results is 1.77%, the minimum error is 0.59%, the average relative error is 0.88%, and the average relative error is small, which indicates that the viscosity measurement device provided by the application does not influence the viscosity measurement result of the reaction of the diverting acid and the calcium carbonate.
Example 3
Adding 400mL of diverting acid and 96.26g of calcium carbonate powder into an open reaction container, allowing the diverting acid and the calcium carbonate powder to naturally react, and measuring the viscosity of the solution after the reaction is completed; adding the same volume of diverting acid and the same mass of calcium carbonate powder into the viscosity measuring device provided by the application, stirring at the rotating speed of 1500r/min, and measuring the viscosity of the solution after the reaction is completed. Three sets of experiments were performed in parallel, and the average reaction time and the average viscosity of the solution were calculated for each set of experiments, 3 times for each set of experiments, see table 3.
TABLE 3 reaction time and solution viscosity for the complete reaction of acid with calcium carbonate
As can be seen from table 3: the reaction time of the open reaction container is about 600min, namely about 10 hours, and the viscosity measuring device provided by the application can shorten the reaction time to within 1 hour on the premise of not influencing the viscosity measuring result of the reaction of the diverting acid and the calcium carbonate, so that the reaction time is greatly shortened.
To sum up, the viscosity measurement device that this application embodiment provided not only can increase substantially and turn to the reaction rate of acid with calcium carbonate powder, and the disappearance time of the foam that the reaction produced has reduced within 1 hour by 8 ~ 10 hours, can stop the foam simultaneously and has overflowed, can also greatly reduced acidizing fluid volatilize to measurement personnel's harm, has laid the foundation for realizing fast, clean, the viscosity that safety inspection turned to acid and calcium carbonate reaction.
The above description is only for facilitating the understanding of the technical solutions of the present application by those skilled in the art, and is not intended to limit the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A viscosity measuring device, comprising: the device comprises a support, a stirring cylinder, a stirring mechanism, a viscosity measuring mechanism and a control mechanism;
the stirring cylinder, the stirring mechanism and the viscosity measuring mechanism are arranged on the bracket;
the lower end of the viscosity measuring mechanism is connected with the upper end of the stirring cylinder body through an opening at the upper end of the stirring cylinder body;
the stirring paddle of the stirring mechanism is positioned in the stirring cylinder;
the stirring mechanism and the viscosity measuring mechanism are both electrically connected with the control mechanism;
the stirring cylinder is used for containing diverting acid and calcium carbonate, and the diverting acid and the calcium carbonate react in the stirring cylinder;
when the steering acid and the calcium carbonate are contained in the stirring cylinder, the control mechanism is used for controlling the stirring paddle to start or stop;
the control mechanism is further used for controlling the viscosity measuring mechanism to measure the viscosity of the solution in the stirring cylinder after the stirring of the stirring paddle is stopped; the solution is obtained by mixing the diverting acid and the calcium carbonate;
wherein when the viscosity measuring mechanism measures the viscosity of the solution, the lower end of the viscosity measuring mechanism is immersed in the solution.
2. The apparatus of claim 1, further comprising: a turning shaft;
the turnover shaft is positioned outside the stirring cylinder body and is fixed in the middle of the stirring cylinder body;
both ends of the turnover shaft are connected with the bracket and are electrically connected with the control mechanism;
and the control mechanism is used for controlling the turnover shaft to turn over after the viscosity measurement mechanism finishes viscosity measurement, and pouring out the solution in the stirring barrel in the turning process.
3. The apparatus of claim 1, further comprising: a pressure measuring instrument;
the pressure measuring instrument is fixed outside the stirring cylinder and connected with the stirring cylinder;
the pressure measuring instrument is electrically connected with the control mechanism;
the pressure measuring instrument is used for measuring the pressure in the mixing drum and sending the pressure to the control mechanism;
and the control mechanism is used for receiving the pressure and sending out an alarm signal when the pressure is greater than a first pressure set value.
4. The apparatus of claim 1, wherein the agitation mechanism further comprises: the stirring shaft, the first motor, the magnet seat, the first fixing flange, the second fixing flange and the supporting rod;
the stirring shaft is provided with the stirring paddle;
the lower end of the stirring shaft penetrates through the bottom of the stirring barrel body and is connected with a motor shaft of the magnet seat and the first motor, and the magnet is arranged in the magnet seat;
the upper end of the first motor is connected with a first fixed flange, the first fixed flange is connected with one end of the supporting rod, the other end of the supporting rod is connected with a second fixed flange, and the second fixed flange is connected with the lower end of the stirring cylinder;
the first motor is electrically connected with the control mechanism;
the control mechanism is used for controlling the starting, the closing and the rotating speed of the first motor.
5. The apparatus of claim 4, further comprising: a protection mechanism;
the protection mechanism is located above the stirring paddle and embedded on the inner wall of the stirring barrel.
6. The device of claim 5, wherein the protective mechanism is a protective cover of a mesh structure.
7. The device of claim 6, wherein the protective cover is in-line.
8. The device of claim 6, wherein the protective cover is a chevron.
9. The apparatus of claim 1, wherein the viscosity measuring mechanism comprises: the device comprises a machine body, a rotating part, an outer rotary drum, an inner drum, a second motor and a dial;
the machine body is provided with the dial;
the rotating part is arranged in the machine body, the upper end of the rotating part is connected with the second motor, and the second motor is electrically connected with the control mechanism;
the lower end of the rotating part is connected with the outer rotating cylinder, the inner cylinder is arranged in the outer rotating cylinder, and the upper end of the inner cylinder is connected with the machine body;
the control mechanism is used for controlling the starting, the closing and the rotating speed of the second motor;
when the solution is contained in the stirring cylinder body, the lower end of the outer rotating cylinder and the lower end of the inner cylinder are both immersed in the solution.
10. The apparatus of claim 1, wherein the lower end of the viscosity measuring mechanism is threaded with the upper end of the mixing drum and sealed by a sealing ring.
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