CN113188962B - Fluid particle size measurement method, system, device, medium and product - Google Patents
Fluid particle size measurement method, system, device, medium and product Download PDFInfo
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- CN113188962B CN113188962B CN202110394753.5A CN202110394753A CN113188962B CN 113188962 B CN113188962 B CN 113188962B CN 202110394753 A CN202110394753 A CN 202110394753A CN 113188962 B CN113188962 B CN 113188962B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
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Abstract
The application provides a fluid particle size measurement method, system, device, medium and product, the method is applied to a measurement device; the method comprises the following steps: acquiring the pressure collected by the pressure sensor at different moments in the process that a two-phase fluid dispersion system flows through the horizontal channel, wherein the two-phase fluid dispersion system comprises a continuous phase medium and a discrete phase medium; obtaining a measurement duration according to the pressures acquired at different moments, wherein the measurement duration is the duration of single positive pressure fluctuation determined based on the pressures acquired at different moments; and calculating to obtain the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system according to the measurement duration and a preset first formula. The scheme of this application can reduce and carry out the cost measured to the fluid particle size in the invisible equipment.
Description
Technical Field
The present application relates to the field of two-phase flow in chemical engineering, and more particularly to a method, system, device, medium, and product for measuring the particle size of a fluid.
Background
Liquid-liquid or gas-liquid two-phase fluid dispersion systems are widely applied to the fields of chemical industry, medicine, food, material preparation and the like, and in the applications, the size of fluid particles is one of the key factors influencing the application effect, so that the measurement of the size of the fluid particles is very important.
In the prior art, generally, for a visible device, an image of a fluid in the device can be obtained by directly acquiring the image, and then the image of the fluid is analyzed by using image processing software, so as to measure the size of fluid particles in the device; for invisible equipment, because image acquisition cannot be directly performed, it is necessary to first acquire a fluid image by means of process tomography, magnetic resonance imaging, ultrasonic imaging, and the like, and then measure the size of fluid particles in the equipment by using image processing software.
However, because of the high cost of acquiring fluid images by means of process tomography, magnetic resonance imaging, ultrasound imaging, etc., current fluid particle size measurements are costly for non-visual equipment.
Disclosure of Invention
The application provides a fluid particle size measuring method, a system, equipment, a medium and a product, which aim to solve the problem that the cost for measuring the fluid particle size is higher for invisible equipment in the prior art.
In a first aspect, the embodiments of the present application provide a fluid particle size measurement method, which is applied to a measurement device that includes a horizontal channel and a vertical channel connected in a "T" shape, and the horizontal channel and the vertical channel are communicated; one end of the vertical channel, which is far away from the horizontal channel, is connected with a pressure sensor; the method comprises the following steps: acquiring the pressure collected by the pressure sensor at different moments in the process that a two-phase fluid dispersion system flows through the horizontal channel, wherein the two-phase fluid dispersion system comprises a continuous phase medium and a discrete phase medium; obtaining a measurement duration according to the pressures acquired at different moments, wherein the measurement duration is the duration of single positive pressure fluctuation determined based on the pressures acquired at different moments; and calculating to obtain the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system according to the measurement duration and by combining a preset first formula.
Alternatively, in the method described above, the two-phase fluid dispersion is obtained by inputting a liquid fluid and a fluid to be measured into a micro device at a first flow rate and a second flow rate, respectively, and mixing, and the micro device is connected to an inlet of the horizontal channel to deliver the two-phase fluid dispersion into the horizontal channel; the first formula is:
wherein Q is c Is a first flow rate, Q d And the second flow rate, t is the duration of single positive pressure fluctuation, pi is the circumferential rate, D is the inner diameter of the horizontal channel, and D is the diameter of the fluid particles of the discrete phase medium.
In a second aspect, embodiments of the present application provide a fluid particle size measurement system, including: a measuring device, a pressure sensor and a fluid particle measuring apparatus; the measuring device comprises a horizontal channel and a vertical channel which are connected in a T-shaped structure, and the horizontal channel is communicated with the vertical channel; one end of the vertical channel, which is far away from the horizontal channel, is connected with a pressure sensor; the pressure sensor is connected to one end, far away from the horizontal channel, of the vertical channel in the measuring device and is used for acquiring the pressure of the two-phase fluid dispersion system at different moments in the process of flowing through the horizontal channel; the fluid particle measuring device, connected to the pressure sensor, is adapted to perform the method according to the first aspect.
Optionally, the system as described above, further comprising: a waste liquid bottle; the inlet of the waste liquid bottle is connected to the outlet of the horizontal channel for collecting the two-phase fluid dispersion flowing out of the horizontal channel.
Optionally, the system as described above, further comprising: a signal acquisition card; the fluid particle size measuring device is connected to the pressure sensor through the signal acquisition card, and the signal acquisition card is used for receiving the pressure acquired by the pressure sensor, converting the pressure into an electric signal and transmitting the electric signal to the fluid particle size measuring device.
Optionally, the system as described above, further comprising: a micro device; the micro device is connected with the inlet of the horizontal channel, and is used for mixing liquid fluid and fluid to be detected which are respectively input according to the first flow and the second flow to obtain a two-phase fluid dispersion system, and then conveying the two-phase fluid dispersion system to the inlet of the horizontal channel.
In a third aspect, embodiments provide a fluid particle size measurement apparatus for performing the method according to the first aspect, the apparatus comprising: the acquisition module is used for acquiring the pressure acquired by the pressure sensor at different moments in the process that the two-phase fluid dispersion system flows through the horizontal channel, and the two-phase fluid dispersion system comprises a continuous phase medium and a discrete phase medium; the processing module is used for obtaining the measuring time length according to the pressures acquired at different moments, wherein the measuring time length is the time length of single positive pressure fluctuation determined on the basis of the pressures acquired at different moments; and the processing module is also used for calculating the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system according to the measurement duration and by combining a preset first formula.
In one mode, the two-phase fluid dispersion system is obtained by inputting a liquid fluid and a fluid to be measured into a micro device according to a first flow rate and a second flow rate respectively and mixing, and the micro device is connected to an inlet of the horizontal channel to convey the two-phase fluid dispersion system into the horizontal channel.
In one approach, the first formula is:
wherein Q is c At a first flow rate, Q d And the second flow rate, t is the duration of single positive pressure fluctuation, pi is the circumferential rate, D is the inner diameter of the horizontal channel, and D is the diameter of the fluid particles of the discrete phase medium.
In a fourth aspect, embodiments of the present application provide a fluid particle size measurement apparatus, including: a memory, a processor; a memory; a memory for storing the processor-executable instructions; wherein the processor is configured to: executing processor-executable instructions stored in the memory to implement a fluid particle size measurement method as described in the first aspect.
In a fifth aspect, embodiments of the present application provide a computer-readable storage medium having stored therein computer-executable instructions for implementing the fluid particle size measurement method according to the first aspect when the computer-executable instructions are executed by a processor.
In a sixth aspect, the present application provides a computer program product comprising a computer program which, when executed by a processor, implements the fluid particle size measurement method according to the first aspect.
The embodiment of the application provides a fluid particle size measuring method, a system, equipment, a medium and a product, wherein a measuring device comprises a horizontal channel and a vertical channel which are communicated in a T-shaped structure, one end, far away from the horizontal channel, of the vertical channel is connected with a pressure sensor, correspondingly, a two-phase fluid dispersion system is controlled to flow through the horizontal channel, in the process, the pressure acquired by the pressure sensor is obtained, and the fluid particle diameter of a discrete-phase medium in the two-phase fluid dispersion system is calculated according to the obtained pressure and a first formula. The scheme that this application provided need not to rely on the image of gathering to carry out size measurement, consequently to invisible equipment, need not acquire fluid image through modes such as process tomography, nuclear magnetic resonance imaging, ultrasonic imaging and can realize fluid particle size measurement, so, the scheme that this application provided has reduced the cost of measuring to fluid particle size.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic view of an application scenario of a fluid particle size measurement method according to an embodiment of the present application;
FIG. 2 is a flow chart of a fluid particle size measurement method according to an embodiment of the present disclosure;
FIG. 3 is a graph of pressure versus time;
fig. 4 is a schematic structural diagram of a fluid particle size measuring system according to a fourth embodiment of the present disclosure;
FIG. 5 is a schematic view of the structure of the measuring device;
fig. 6 is a schematic structural diagram of a fluid particle size measuring apparatus according to a fifth embodiment of the present application;
fig. 7 is a schematic structural diagram of a fluid particle size measuring apparatus according to a sixth embodiment of the present application.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terms referred to in this application are explained first:
continuous phase medium refers to a gas or liquid, also known as fluid phase medium.
Discrete phase media, refers to bubbles or droplets, also referred to as particulate phase media.
Two-phase fluid dispersion refers to a mixed phase of a continuous phase medium and a discrete phase medium.
The microdevice is a microdispersion device used for mixing an introduced liquid fluid and a fluid to be measured to obtain a two-phase fluid dispersion system.
Liquid-liquid or gas-liquid two-phase fluid dispersion systems are widely applied to the fields of chemical industry, medicine, food, material preparation and the like, and in the applications, the size of fluid particles is one of the key factors influencing the application effect, so that the measurement of the size of the fluid particles is very important. As in mass and heat transfer processes, it is often desirable to minimize the fluid particle size to increase the transfer area, decrease the transfer distance, and thereby increase the transfer rate; during the phase separation process after the transfer, the situation that the size of the fluid particles is too small needs to be avoided, so that the phase separation time is saved. In the field of material preparation, the fluid particle size directly determines the characteristic size of the material prepared.
In the existing fluid particle size measurement scheme, for a visual device, it is generally required to acquire a fluid image by using an image acquisition device, analyze the acquired image by using image processing software, and determine the fluid particle size by calculating the number of fluid particle pixel points. However, for invisible devices, fluid images cannot be obtained by common image acquisition devices, and fluid images in the devices need to be obtained by means of process tomography, magnetic resonance imaging, ultrasonic imaging and the like, but the methods are not suitable for industrial application due to high cost.
In order to solve the technical problem, in the embodiment of the present application, the two-phase fluid dispersion system is obtained, the pressure is collected during the process that the two-phase fluid dispersion system flows through the horizontal channel, and the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system is obtained through calculation according to the pressure and the first formula. The scheme that this application provided need not to rely on the image of gathering to carry out size measurement, consequently to invisible equipment, need not acquire fluid image through modes such as process tomography, nuclear magnetic resonance imaging, ultrasonic imaging and can realize fluid particle size measurement, so, the scheme that this application provided has reduced the cost of measuring to fluid particle size.
Embodiments of the present application are described in detail below with reference to the accompanying drawings:
application scenarios of the embodiments of the present application are introduced below:
fig. 1 is a schematic view of an application scenario of a fluid particle size measurement method according to an embodiment of the present disclosure. As shown in fig. 1, the drawing includes: a generating device 1, a measuring device 2, a pressure sensor 3, and a fluid particle size measuring device 4. In practical application, the two-phase fluid dispersion system is formed in the generating device 1 and flows into the measuring device 2 from the generating device 1, and in the process that the two-phase fluid dispersion system flows through the measuring device 2, the pressure sensor measures the pressure in the measuring device 2 in real time and sends the measured pressure to the fluid particle size measuring device 4; the fluid particle size measuring device 4 obtains the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system from the pressure calculation.
Example one
Fig. 2 is a flowchart of a fluid particle size measuring method according to an embodiment of the present disclosure, and as shown in fig. 2, the fluid particle size measuring method according to the present embodiment is applied to a measuring apparatus, where the measuring apparatus includes a horizontal channel and a vertical channel connected in a "T" shape, and the horizontal channel is communicated with the vertical channel; the end of the vertical channel far away from the horizontal channel is connected with a pressure sensor, and the fluid particle size measuring method comprises the following steps.
Step 101, acquiring the pressure collected by the pressure sensor at different moments in the process that a two-phase fluid disperse system flows through a horizontal channel, wherein the two-phase fluid disperse system comprises a continuous phase medium and a discrete phase medium.
In the embodiment, in the process of flowing through the horizontal channel, a part of the two-phase fluid dispersion system is extruded and transmitted into the vertical channel, so that the two-phase fluid dispersion system is deformed, and the pressure in the vertical channel is changed; the pressure sensor collects the pressure in the vertical channel at different moments in real time and sends the collected pressure to the fluid particle size measuring equipment. Wherein the time interval between different instants is determined by the own properties of the pressure sensor, which may be 5ms, for example. The collected pressure is used for calculating the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system, optionally, the collected pressure can be sent to the fluid particle size measuring equipment in real time for calculation, or can be stored in advance, and when calculation is needed, the fluid particle size measuring equipment reads or calls the collected pressure. And 102, obtaining a measurement duration according to the pressures acquired at different moments, wherein the measurement duration is the duration of single positive pressure fluctuation determined based on the pressures acquired at different moments.
As an example, a curve of pressure change with time may be established according to pressures collected at different times, and then a time length of positive pressure fluctuation, that is, a measurement time length, may be determined according to the curve of pressure change with time. For example, as shown in fig. 3, a pressure curve with time is shown, wherein the vertical axis represents pressure and the horizontal axis represents time. For example, the process of increasing the pressure, then stabilizing at the maximum value for a period of time, and then decreasing, referred to as positive pressure fluctuation, corresponds to the entire process of a single particle flowing through the junction of the horizontal channel and the vertical channel, with reference to the standard pressure P; the pressure increases to a maximum peak value and then immediately decreases until it reaches a minimum peak value, and then slowly returns to the standard pressure value, which is called negative pressure fluctuation and corresponds to the process of single particles flowing out from the outlet end of the horizontal channel. In this embodiment, the measurement time is the duration of a single positive pressure fluctuation, for example, the time t shown in fig. 3, and the value of t is generally between 0.05 and 5 seconds due to the difference between the flow rate of the two-phase fluid dispersion system and the particle size of the discrete phase. For example, if the size of a single particle is to be measured, the duration of the positive pressure fluctuation corresponding to the particle is obtained and determined as the measurement duration; if the average size of the plurality of particles is to be measured, the duration of the positive pressure fluctuation corresponding to the plurality of particles may be obtained, and the average value thereof is calculated and determined as the measurement period.
And 103, calculating to obtain the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system according to the measurement duration and by combining a preset first formula.
Wherein the preset first formula is obtained by deduction according to the relation between the flow and the volume of the two-phase fluid dispersion system; the discrete phase media in the two-phase fluid dispersion include, but are not limited to, droplets of water, and air-formed bubbles.
In this embodiment, the fluid particle diameter of the discrete phase medium is obtained by substituting the measurement time t into a preset first formula.
In this embodiment, the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system is calculated according to the obtained pressure and the first formula by obtaining the pressure generated in the vertical channel in the process that the two-phase fluid dispersion system flows through the horizontal channel. The scheme that this application provided need not to rely on the image of gathering to carry out size measurement, consequently to invisible equipment, need not acquire fluid image through modes such as process tomography, nuclear magnetic resonance imaging, ultrasonic imaging and can realize fluid particle size measurement, so, the scheme that this application provided has reduced the cost of measuring to fluid particle size.
Example two
The second embodiment of the present application provides a method for measuring a fluid particle size, in which on the basis of the first embodiment, the two-phase fluid dispersion system is obtained by inputting a liquid fluid and a fluid to be measured into a micro device according to a first flow rate and a second flow rate, respectively, and mixing the two-phase fluid and the fluid to be measured, and the micro device is connected to an inlet of the horizontal channel to convey the two-phase fluid dispersion system into the horizontal channel; accordingly, the first formula is:
wherein Q is c Is a first flow rate, Q d And the second flow, t is the duration of single positive pressure fluctuation, pi is the circumferential ratio, D is the inner diameter of the horizontal channel, and D is the diameter of the fluid particles of the discrete phase medium.
Wherein the inner diameter D of the horizontal channel can be measured in advance by using a measuring tool.
As an example, in the present embodiment, the obtaining of the two-phase fluid dispersion system can be achieved by:
the micro equipment is respectively connected with two micro injection pumps, each micro injection pump is provided with an injector, and liquid fluid and fluid to be detected are respectively filled in the two injectors, wherein the fluid to be detected is used for forming a discrete phase medium in a subsequent two-phase fluid dispersion system; when the micro-device and the micro-injection pump are started simultaneously, the liquid fluid and the fluid to be detected in the two injectors are input into the micro-device at a first flow rate and a second flow rate respectively, and the micro-device mixes the liquid fluid and the fluid to be detected to obtain a two-phase fluid dispersion system. The first flow rate and the second flow rate may be set empirically, and may be 0.4 μ L/min, for example.
Among them, the related art of mixing a liquid fluid and a fluid to be measured using a micro device has been widely used, and will not be described in detail in this application.
It should be noted that the above two-phase fluid dispersion system obtaining method is only an exemplary illustration, and in practical applications, the two-phase fluid dispersion system can also be obtained by other methods, for example, when the two-phase fluid dispersion system in the device to be measured needs to be measured, a branch can be taken from the device to be measured and connected to the inlet of the horizontal channel of the measuring device to obtain the two-phase fluid dispersion system.
In this embodiment, the fluid particle size measuring apparatus measures the first flow rate Q c Second flow rate Q d The values of the time length t of the positive fluctuation of the pressure, the inner diameter D of the horizontal channel and the circumferential ratio pi are substituted into the first formula, and the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system is obtained through calculation. Wherein the discrete phase medium includes, but is not limited to, droplets of water, and air-formed bubbles.
In this embodiment, the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system is obtained by the first formula, and for an invisible device, since it is not necessary to obtain a fluid image by means of process tomography, magnetic resonance imaging, ultrasonic imaging, and the like when measuring the fluid particle size, the scheme provided by this embodiment reduces the cost for measuring the fluid particle size, and is therefore suitable for industrial application.
It should be noted that the implementation manners provided in the above first and second embodiments can be implemented in combination, and the implementation process will be described in detail below with reference to a specific embodiment.
EXAMPLE III
The embodiment provides a fluid particle size measuring method, which is applied to a measuring device, wherein the measuring device comprises a horizontal channel and a vertical channel which are connected in a T-shaped structure, and the horizontal channel is communicated with the vertical channel; one end of the vertical channel far away from the horizontal channel is connected with a pressure sensor, and the fluid particle size measuring method comprises the following steps:
acquiring the pressure collected by the pressure sensor at different moments in the process that a two-phase fluid dispersion system flows through the horizontal channel, wherein the two-phase fluid dispersion system comprises a continuous phase medium and a discrete phase medium; the two-phase fluid dispersion system is obtained by inputting a liquid fluid and a fluid to be detected into a micro device according to a first flow and a second flow respectively and mixing, and the micro device is connected to an inlet of the horizontal channel so as to convey the two-phase fluid dispersion system into the horizontal channel;
establishing a curve of pressure changing along with time according to the pressure collected at different moments, and obtaining a measurement duration based on the curve, wherein the measurement duration is the duration of single positive pressure fluctuation;
calculating and obtaining the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system according to the measurement duration and a preset first formula; the first formula is:
wherein Q is c Is a first flow rate, Q d And the second flow rate, t is the duration of single positive pressure fluctuation, pi is the circumferential rate, D is the inner diameter of the horizontal channel, and D is the diameter of the fluid particles of the discrete phase medium.
By combining with an actual scene, for example, in this embodiment, the liquid fluid and the fluid to be measured may be respectively input into the micro device according to the first flow rate and the second flow rate through the two micro injection pumps to be mixed, so as to obtain a two-phase fluid dispersion system; the output end of the micro device is connected to one end of a horizontal channel of the measuring device, so that the two-phase fluid dispersion system is controlled to flow into the horizontal channel, and the pressure sensor collects pressure in real time and sends the pressure to the fluid particle size measuring device in the process that the two-phase fluid dispersion system flows through the horizontal channel; and the fluid particle size measuring equipment obtains the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system according to the pressure calculation.
According to the fluid particle size measuring method provided by the embodiment, the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system is obtained through calculation according to the first formula, and a fluid image obtained by adopting a high-cost image obtaining mode is not needed, so that the cost for measuring the fluid particle size is reduced by the scheme provided by the embodiment, and the method is suitable for industrial application.
Example four
Fig. 4 is a schematic structural diagram of a fluid particle size measurement system according to a fourth embodiment of the present disclosure. The fluid particle size measuring system is used in the fluid particle size measuring method provided in any one of the preceding embodiments, and the fluid particle size measuring system 20 includes: a measuring device 2, a pressure sensor 3 and a fluid particle measuring apparatus 4; wherein the content of the first and second substances,
the measuring device 2 comprises a horizontal channel and a vertical channel which are connected in a T-shaped structure, and the horizontal channel is communicated with the vertical channel; one end of the vertical channel, which is far away from the horizontal channel, is connected with the pressure sensor 3;
the pressure sensor 3 is connected to one end of the vertical channel in the measuring device 2, which is far away from the horizontal channel, and is used for acquiring the pressure of the two-phase fluid dispersion system at different moments in the process of flowing through the horizontal channel;
and the fluid particle size measuring device 4 is connected with the pressure sensor 3 and is used for executing the fluid particle size measuring method provided by the first embodiment or the second embodiment.
Fig. 5 is a schematic structural diagram of the measuring apparatus. The horizontal channel is used for allowing a two-phase fluid dispersion system to be measured to flow through, and the pressure change generated in the vertical channel can reflect the fluid particle size of a discrete phase medium in the two-phase fluid dispersion system, so that the method and the device are used for measuring the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system in the equipment to be measured by establishing a first formula capable of representing the relation between the pressure and the fluid particle size of the discrete phase medium in the two-phase fluid dispersion system.
In practical application, when the two-phase fluid dispersion system in the equipment to be measured needs to be measured, a branch is taken from the equipment to be measured and connected to an inlet of a horizontal channel of a measuring device so as to convey the two-phase fluid dispersion system to be measured to the horizontal channel, in the process that the two-phase fluid dispersion system flows through the horizontal channel, the pressure sensor 3 is used for collecting the pressure in the vertical channel in real time, and the fluid particle size measuring equipment 4 is used for calculating and obtaining the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system according to the pressure collected by the pressure sensor 3. In the embodiment, for the invisible device, the fluid image in the device does not need to be obtained in an image acquisition mode with high cost during measurement, so that the cost for measuring the size of the fluid particles in the invisible device can be reduced.
In practical applications, the two-phase fluid dispersion flowing out of the horizontal channel needs to be processed, and for this, on the basis of the fourth embodiment, the fluid particle size measuring system 20 further includes: a waste liquid bottle 5; an inlet of a waste liquid bottle 5 is connected to an outlet of the horizontal channel for collecting the two-phase fluid dispersion flowing out of the horizontal channel. In this embodiment, since the two-phase fluid dispersion system is generally a solution made of various chemicals, and if the two-phase fluid dispersion system runs off into the environment, the environment may be polluted, and therefore, the two-phase fluid dispersion system flowing out of the horizontal channel is collected by using a waste liquid bottle and then is centrally treated, so that the purpose of protecting the environment can be achieved.
In another embodiment, based on example four, the fluid particle size measuring system 20 further comprises: a signal acquisition card 6; the fluid particle size measuring device 4 is connected to the pressure sensor 3 through a signal acquisition card 6, and the signal acquisition card 6 is used for receiving the pressure acquired by the pressure sensor 3, converting the pressure into an electric signal and transmitting the electric signal to the fluid particle size measuring device 4. In the embodiment, the pressure is converted into the electric signal through the signal acquisition card, so that the fluid particle measurement equipment can conveniently acquire the electric signal of the pressure, and further the time length of the positive fluctuation of the pressure is acquired.
In another embodiment, based on any one of the above embodiments, the fluid particle size measuring system in this embodiment further includes: a micro device; the micro device is connected with the inlet of the horizontal channel, and is used for mixing liquid fluid and fluid to be detected which are respectively input according to the first flow and the second flow to obtain a two-phase fluid dispersion system, and then conveying the two-phase fluid dispersion system to the inlet of the horizontal channel. In this embodiment, one end of the micro device is connected to a micro syringe pump, and is configured to introduce the liquid fluid and the fluid to be measured into the micro device; the other end of the micro device is connected with the inlet of the horizontal channel and is used for conveying the two-phase fluid dispersion system obtained by mixing to a measuring device. The two-phase fluid dispersion system obtained by mixing through the micro-device is uniform and stable, is suitable for measurement, and can improve the accuracy of the measurement result.
The above embodiments may be implemented individually or in combination. The following gives a combination of the above embodiments:
the fluid particle size measuring system provided by the embodiment comprises a measuring device, a pressure sensor, a fluid particle measuring device, a waste liquid bottle, a signal acquisition card and a micro device, wherein a two-phase fluid dispersion system is obtained by mixing the micro device, the two-phase fluid dispersion system is conveyed to the measuring device, the two-phase fluid dispersion system flowing out of the measuring device flows into the waste liquid bottle, the pressure sensor acquires the pressure in the measuring device, the signal acquisition card converts the pressure into an electric signal, then the electric signal is transmitted to the fluid particle measuring device, and the fluid particle measuring device calculates and obtains the diameter of fluid particles of a discrete phase medium in the two-phase fluid dispersion system according to the electric signal. In the embodiment, on one hand, the accuracy of the measurement result can be improved by acquiring the two-phase fluid dispersion system through the micro device and calculating the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system according to the electric signal; on the other hand, the two-phase fluid dispersion system flowing out of the measuring equipment is collected to a waste liquid bottle, so that the environment can be prevented from being polluted, and the environment can be protected.
EXAMPLE five
FIG. 6 is a schematic structural diagram of a fluid particle size measuring apparatus provided in the fifth embodiment of the present application, the apparatus being applied to a measuring device, the measuring device including a horizontal channel and a vertical channel connected in a "T" configuration, and the horizontal channel and the vertical channel being in communication; one end of the vertical channel far away from the horizontal channel is connected with the pressure sensor. Specifically, as shown in fig. 6, the fluid particle size measuring apparatus provided in this embodiment includes: an acquisition module 41 and a processing module 42.
The obtaining module 41 is configured to obtain pressures acquired by the pressure sensor at different times in a process that the two-phase fluid dispersion system flows through the horizontal channel, where the two-phase fluid dispersion system includes a continuous phase medium and a discrete phase medium. And the processing module 42 is configured to obtain a measurement duration according to the pressures acquired at different times, where the measurement duration is a duration of a single positive pressure fluctuation determined based on the pressures acquired at different times. The processing module 42 is further configured to calculate, according to the measurement duration and in combination with a preset first formula, a fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system.
In one mode, the two-phase fluid dispersion system is obtained by inputting a liquid fluid and a fluid to be measured into a micro device according to a first flow rate and a second flow rate respectively for mixing, and the micro device is connected to an inlet of the horizontal channel so as to convey the two-phase fluid dispersion system into the horizontal channel.
In one approach, the first formula is:
wherein Q is c Is a first flow rate, Q d For the second flow, t is the duration of a single positive pressure fluctuation, pi is the circumferential ratio, D is the inner diameter of the horizontal channel, and D isFluid particle diameter of the discrete phase medium.
The fluid particle size measuring apparatus provided in this embodiment may implement the technical solutions of the foregoing method embodiments, and the implementation principle and technical effects are similar, which are not described herein again.
EXAMPLE six
Fig. 7 is a schematic structural diagram of a fluid particle size measuring apparatus according to a sixth embodiment of the present application. As shown in fig. 7, the fluid particle size measuring apparatus includes: a memory 1 and a processor 2.
The memory 1 is configured to store processor-executable instructions. The memory 1 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The memory 1 and the processor 2 are interconnected by a circuit. In particular, the various components are interconnected using a bus, and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions for execution within the hydrocarbon reservoir identification device.
EXAMPLE seven
The seventh embodiment of the present application provides a computer-readable storage medium.
When executed by a processor, the instructions in the storage medium enable the hydrocarbon reservoir identification device to perform the fluid particle size measurement method described above.
Example eight
The seventh embodiment of the present application provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the fluid particle size measurement method described above.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A method for measuring the size of fluid particles is characterized in that the method is applied to a measuring device, the measuring device comprises a horizontal channel and a vertical channel which are connected in a T-shaped structure, the horizontal channel is communicated with the vertical channel, and a part of a two-phase fluid dispersion system is extruded and transmitted into the vertical channel in the process of flowing through the horizontal channel, so that the two-phase fluid dispersion system is deformed, and the pressure in the vertical channel is changed; one end of the vertical channel, which is far away from the horizontal channel, is connected with a pressure sensor; the method comprises the following steps:
acquiring the pressure acquired by the pressure sensor at different moments in the process that the two-phase fluid disperse system flows through the horizontal channel, wherein the two-phase fluid disperse system comprises a continuous phase medium and a discrete phase medium;
obtaining a measurement duration according to the pressures acquired at different moments, wherein the measurement duration is the duration of single positive pressure fluctuation determined based on the pressures acquired at different moments; the positive pressure fluctuation is a process that the standard pressure is used as a reference, the pressure is increased firstly, then is stabilized at the maximum value for a period of time, and then is reduced;
and calculating to obtain the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system according to the measurement duration and a preset first formula.
2. The method according to claim 1, wherein said two-phase fluid dispersion is obtained by feeding a liquid fluid and a fluid to be measured into a microdevice at a first flow rate and a second flow rate, respectively, for mixing, and said microdevice is connected to an inlet of said horizontal channel to deliver said two-phase fluid dispersion into said horizontal channel; the first formula is:
wherein Q c Is a first flow rate, Q d And the second flow rate, t is the duration of single positive pressure fluctuation, pi is the circumferential rate, D is the inner diameter of the horizontal channel, and D is the diameter of the fluid particles of the discrete phase medium.
3. A fluid particle size measurement system, comprising: a measuring device, a pressure sensor and a fluid particle size measuring apparatus; wherein the content of the first and second substances,
the measuring device comprises a horizontal channel and a vertical channel which are connected in a T-shaped structure, the horizontal channel is communicated with the vertical channel, and when the two-phase fluid dispersion system flows through the horizontal channel, a part of the two-phase fluid dispersion system is extruded and transmitted into the vertical channel to deform the vertical channel, so that the pressure in the vertical channel is changed; one end of the vertical channel, which is far away from the horizontal channel, is connected with a pressure sensor;
the pressure sensor is connected to one end, far away from the horizontal channel, of the vertical channel in the measuring device and is used for acquiring the pressure of the two-phase fluid dispersion system at different moments in the process of flowing through the horizontal channel;
the fluid particle size measuring device, connected to the pressure sensor, for performing the method according to claim 1 or 2.
4. The system of claim 3, further comprising: a waste liquid bottle;
and the inlet of the waste liquid bottle is connected to the outlet of the horizontal channel and is used for collecting the two-phase fluid dispersion system flowing out of the horizontal channel.
5. The system of claim 4, further comprising: a signal acquisition card;
the fluid particle size measuring device is connected to the pressure sensor through the signal acquisition card, and the signal acquisition card is used for receiving the pressure acquired by the pressure sensor, converting the pressure into an electric signal and transmitting the electric signal to the fluid particle size measuring device.
6. The system according to any one of claims 3-5, further comprising: a micro device;
the micro device is connected with the inlet of the horizontal channel, and is used for mixing liquid fluid and fluid to be detected which are respectively input according to the first flow and the second flow to obtain a two-phase fluid dispersion system, and then conveying the two-phase fluid dispersion system to the inlet of the horizontal channel.
7. A fluid particle size measuring apparatus for carrying out the method of claim 1 or 2, the apparatus comprising:
the acquisition module is used for acquiring the pressure acquired by the pressure sensor at different moments in the process that when a two-phase fluid dispersion system flows through the horizontal channel, one part of the two-phase fluid dispersion system is extruded and transmitted into the vertical channel to deform the two-phase fluid dispersion system, so that the pressure in the vertical channel changes, and the two-phase fluid dispersion system comprises a continuous phase medium and a discrete phase medium;
the processing module is used for obtaining the measuring time length according to the pressures acquired at different moments, wherein the measuring time length is the time length of single positive pressure fluctuation determined on the basis of the pressures acquired at different moments; the positive pressure fluctuation is a process that the standard pressure is used as a reference, the pressure is increased firstly, then is stabilized at the maximum value for a period of time, and then is reduced;
and the processing module is also used for calculating the fluid particle diameter of the discrete phase medium in the two-phase fluid dispersion system according to the measurement duration and by combining a preset first formula.
8. The apparatus of claim 7 wherein said two-phase fluid dispersion is obtained by mixing a liquid fluid and a fluid to be measured by feeding them into a microdevice at a first flow rate and a second flow rate, respectively, and said microdevice is connected to the inlet of said horizontal channel to deliver said two-phase fluid dispersion into said horizontal channel; the first formula is:
wherein Q is c Is a first flow rate, Q d And the second flow, t is the duration of single positive pressure fluctuation, pi is the circumferential ratio, D is the inner diameter of the horizontal channel, and D is the diameter of the fluid particles of the discrete phase medium.
9. A fluid particle size measurement apparatus comprising:
a memory, a processor;
a memory; a memory for storing the processor-executable instructions;
wherein the processor is configured to: executing processor-executable instructions stored in the memory to implement the fluid particle size measurement method of claim 1 or 2.
10. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, perform a fluid particle size measurement method as claimed in claim 1 or 2.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998033054A1 (en) * | 1997-01-24 | 1998-07-30 | Pa Knowledge Limited | Method and apparatus for counting and/or sizing particles in suspension |
| CN101900589A (en) * | 2010-04-29 | 2010-12-01 | 中国石油大学(华东) | Air-entrainment liquid flow measuring method based on mass flowmeter |
| CN103207211A (en) * | 2013-03-06 | 2013-07-17 | 中国科学院合肥物质科学研究院 | Device and method for measuring liquid metal two-phase flow void fraction |
| CN104571152A (en) * | 2015-01-20 | 2015-04-29 | 哈尔滨工业大学 | Liquid drop micro fluid control closed-loop regulation device based on microvalve |
| CN105222831A (en) * | 2015-07-23 | 2016-01-06 | 中国石油大学(华东) | A kind of gas-liquid two-phase flow metering device and method |
| CN106525676A (en) * | 2016-11-17 | 2017-03-22 | 深圳市翠云谷科技有限公司 | Particle concentration detection method of particle two-phase flows |
| CN108458763A (en) * | 2018-04-13 | 2018-08-28 | 清华大学 | Based on the novel multi-phase flowmeter and detection method on horizontal pipe |
| CN109682574A (en) * | 2019-01-14 | 2019-04-26 | 北京工业大学 | The device and method of flow resistance when a kind of real-time measurement microlayer model/bubble moves in the channel |
| CN112495269A (en) * | 2020-12-14 | 2021-03-16 | 北京大学 | Generating device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPQ841500A0 (en) * | 2000-06-28 | 2000-07-20 | Commonwealth Scientific And Industrial Research Organisation | Measurement of particle size in pneumatic flows |
| US7171315B2 (en) * | 2003-11-25 | 2007-01-30 | Cidra Corporation | Method and apparatus for measuring a parameter of a fluid flowing within a pipe using sub-array processing |
| CA2912218C (en) * | 2005-05-16 | 2018-02-27 | Expro Meters, Inc. | Method and apparatus for detecting and characterizing particles in a multiphase fluid |
| US8862411B2 (en) * | 2007-08-24 | 2014-10-14 | Expro Meters, Inc. | Velocity and impingement method for determining parameters of a particle/fluid flow |
| WO2012054641A2 (en) * | 2010-10-19 | 2012-04-26 | The Johns Hopkins University | Hydrodynamic particle separation and detection systems and methods |
| CN110987097B (en) * | 2019-12-10 | 2020-11-13 | 北京科技大学 | Method for measuring gas-liquid multiphase flow by using pressure fluctuation |
-
2021
- 2021-04-13 CN CN202110394753.5A patent/CN113188962B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998033054A1 (en) * | 1997-01-24 | 1998-07-30 | Pa Knowledge Limited | Method and apparatus for counting and/or sizing particles in suspension |
| CN101900589A (en) * | 2010-04-29 | 2010-12-01 | 中国石油大学(华东) | Air-entrainment liquid flow measuring method based on mass flowmeter |
| CN103207211A (en) * | 2013-03-06 | 2013-07-17 | 中国科学院合肥物质科学研究院 | Device and method for measuring liquid metal two-phase flow void fraction |
| CN104571152A (en) * | 2015-01-20 | 2015-04-29 | 哈尔滨工业大学 | Liquid drop micro fluid control closed-loop regulation device based on microvalve |
| CN105222831A (en) * | 2015-07-23 | 2016-01-06 | 中国石油大学(华东) | A kind of gas-liquid two-phase flow metering device and method |
| CN106525676A (en) * | 2016-11-17 | 2017-03-22 | 深圳市翠云谷科技有限公司 | Particle concentration detection method of particle two-phase flows |
| CN108458763A (en) * | 2018-04-13 | 2018-08-28 | 清华大学 | Based on the novel multi-phase flowmeter and detection method on horizontal pipe |
| CN109682574A (en) * | 2019-01-14 | 2019-04-26 | 北京工业大学 | The device and method of flow resistance when a kind of real-time measurement microlayer model/bubble moves in the channel |
| CN112495269A (en) * | 2020-12-14 | 2021-03-16 | 北京大学 | Generating device |
Non-Patent Citations (3)
| Title |
|---|
| Study on Venturi nozzle for gas-liquid two-phase flow metering;LIANG Fa-chun, et al.;《Journal of Harbin Institute of Technology (New Series)》;20121231;第19卷(第1期);107-110 * |
| T形微通道中气泡分散流的传质性能;谭璟 等;《中国科学:化学》;20121231;第42卷(第3期);340-346 * |
| T形微通道内气泡(液滴)生成机理的研究进展;付涛涛 等;《化工进展》;20111105;第30卷(第11期);2357-2363 * |
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