CN105181049A - Piplineline internal fluid flow measuring method, measuring system and subsidiary measuring system - Google Patents
Piplineline internal fluid flow measuring method, measuring system and subsidiary measuring system Download PDFInfo
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Abstract
The present invention discloses a piplineline internal fluid flow measuring method, measuring system and subsidiary measuring system. The method comprises acquring real-time flow velocity values obtained by measuring a sealed pipeline internal fluid by a flowmeter; determining instantaneous flow rate values corresponding to the real-time flow velocity values according to a corresponding relation of flow velocity and an instantaneous flow rate corresponding to an inner diameter of a sealed pipeline; and determining an accumulated flow rate value of the sealed pipeline internal fluid according to the instantaneous flow rate values; wherein, the corresponding relation is determined according to flow velocity values and instantaneous flow rate values of a fluid inside a pipeline for measurement under a plurality of flow velocities, the flow velocity values the fluid inside the pipeline for measurement under a plurality of flow velocities are obtained through measurement of the flowmeter while the instantaneous flow rate values of the fluid inside the pipeline for measurement under a plurality of flow velocities are specific values between valumes of a fluid flowing out of the pipeline for measurement within preset time and the preset time, and the inner diameter of the pipeline for measurement is the same as that of the sealed pipeline.
Description
Technical field
The present invention relates to fluid measurement technical field, particularly relate to a kind of measuring method of fluids within pipes flow, measuring system and auxiliary measurement system.
Background technology
Do not changing under field condition, generally ultrasonic flow meter is being adopted to the measurement of various closed conduit inner fluid flow.For transit time ultrasonic flow meters, as shown in Figure 1, by the ultrasonic probe 01 being provided with following current transducer is installed in the ultrasonic probe 02 being provided with adverse current transducer the position that pipeline external surface specifies, by these two ultrasonic probes, data are passed to flowmeter processor 03, just can measure flow velocity and the flow of fluids within pipes.
In Practical Project and scientific research, a lot of pharmaceutical production line, hydraulic control lines is had all to there is the measurement demand of microtubule (refer to that pipe diameter is little, be usually less than 6mm) inner fluid flow.
For microtubule, the confusor channel in its pipeline is very complicated, and the flow that flowmeter survey obtains is often inaccurate.And at present also less than the solution of carrying out measuring for microtubule inner fluid flow.
Summary of the invention
The object of this invention is to provide a kind of measuring method of fluids within pipes flow, measuring system and auxiliary measurement system, to solve the problem how microtubule inner fluid flow is measured.
The object of the invention is to be achieved through the following technical solutions:
A measuring method for fluids within pipes flow, comprising:
Obtain the real-time flow rate value that flowmeter obtains the measurement of closed conduct inner fluid;
The flow velocity corresponding according to the internal diameter of described closed conduct and the corresponding relation of instantaneous delivery, determine the instantaneous delivery value that described real-time flow rate value is corresponding;
According to described instantaneous delivery value, determine the cumulative flow value of described closed conduct inner fluid;
Wherein, the corresponding relation of the flow velocity that the internal diameter of described closed conduct is corresponding and instantaneous delivery, determine according to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, the flow speed value of described measurement fluids within pipes under multiple flow velocity is obtained by flowmeter survey, the instantaneous delivery value of described measurement fluids within pipes under multiple flow velocity is that the internal diameter of described measurement pipeline is identical with the internal diameter of described closed conduct from the fluid volume of described measurement pipeline outflow and the ratio of the described schedule time in the schedule time.
A measuring system for fluids within pipes flow, comprising:
Processor and flowmeter;
Described flowmeter is used for measuring closed conduct inner fluid, and sends to processor by measuring the real-time flow rate value obtained;
Described processor is used for the corresponding relation according to flow velocity corresponding to the internal diameter of described closed conduct and instantaneous delivery, determines the instantaneous delivery value that described real-time flow rate value is corresponding; And according to described instantaneous delivery value, determine the cumulative flow value of described closed conduct inner fluid;
Wherein, the corresponding relation of the flow velocity that the internal diameter of described closed conduct is corresponding and instantaneous delivery, determine according to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, the flow speed value of described measurement fluids within pipes under multiple flow velocity is obtained by flowmeter survey, the instantaneous delivery value of described measurement fluids within pipes under multiple flow velocity is that in the schedule time, described measurement fluids within pipes flows into volume in container and the ratio of the described schedule time, and the internal diameter of described measurement pipeline is identical with the internal diameter of described closed conduct.
An auxiliary measurement system for fluids within pipes flow, comprising:
Processor, flowmeter, measurement pipeline, fluid supply apparatus and flow rate adjustment device;
Described fluid supply apparatus is used for, from one end of described measurement pipeline, fluid is inputted described measurement pipeline;
Described flow rate adjustment device inputs the rate of flow of fluid of described measurement pipeline for regulating;
Described flowmeter is used for measuring the flow speed value of described measurement fluids within pipes under multiple flow velocity, and sends to described processor by measuring the flow speed value obtained;
Described processor is used for fluid volume according to flowing out from the other end of described measurement pipeline in the schedule time and the ratio of the described schedule time, determine the instantaneous measure of described measurement fluids within pipes under multiple flow velocity, and according to the flow speed value of described measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, determine the corresponding relation of the flow velocity that internal diameter on described measurement pipeline is corresponding and instantaneous delivery.
Inventor is realizing finding in process of the present invention, although flowmeter is inaccurate to the flow that small closed conduct records, its flow velocity recorded is accurately.The technical scheme that the embodiment of the present invention provides, pre-determines the corresponding relation of flow velocity corresponding to the internal diameter of closed conduct and instantaneous delivery.Wherein, under multiple flow velocity, the measurement pipeline identical with the internal diameter of closed conduct is measured, determine to be instantaneous delivery value accurately from the fluid volume of measurement pipeline outflow and the ratio of the schedule time in the schedule time, the corresponding relation of the flow velocity that the internal diameter of closed conduct is corresponding and instantaneous delivery can be determined accordingly.And then the flow of closed conduct inner fluid can be recorded.
Accompanying drawing explanation
Fig. 1 is existing structure of ultrasonic flowmeter schematic diagram;
The method flow diagram that Fig. 2 provides for the embodiment of the present invention;
The measuring system schematic diagram of the fluids within pipes flow that Fig. 3 provides for the embodiment of the present invention;
The auxiliary measurement system schematic diagram of the fluids within pipes flow that Fig. 4 provides for one embodiment of the invention;
The side view of the closed conduct that Fig. 5 provides for the embodiment of the present invention;
The front elevation of the pad that Fig. 6 provides for the embodiment of the present invention;
The side view of the pad that Fig. 7 provides for the embodiment of the present invention;
The auxiliary measurement system schematic diagram of the fluids within pipes flow that Fig. 8 provides for another embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme that the embodiment of the present invention provides is described in detail.
The embodiment of the present invention provides the measuring method of flow in a kind of pipeline, to realize the Measurement accuracy to microtubule inner fluid flow.As shown in Figure 2, following operation is specifically comprised:
The real-time flow rate value that step 100, acquisition flowmeter obtain the measurement of closed conduct inner fluid.
Step 110, corresponding relation according to flow velocity corresponding to the internal diameter of this closed conduct and instantaneous delivery, determine the instantaneous delivery value that above-mentioned real-time flow rate value is corresponding.
Step 120, according to above-mentioned instantaneous delivery value, determine the cumulative flow value of above-mentioned closed conduct inner fluid.
Wherein, the corresponding relation of the flow velocity that the internal diameter of closed conduct is corresponding and instantaneous delivery, determine according to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, the flow speed value of this measurement fluids within pipes under multiple flow velocity is obtained by flowmeter survey, the instantaneous delivery value of this measurement fluids within pipes under multiple flow velocity is that the internal diameter of this measurement pipeline is identical with the internal diameter of above-mentioned closed conduct from the fluid volume of this measurement pipeline outflow and the ratio of this schedule time in the schedule time.
Inventor is realizing finding in process of the present invention, although flowmeter is inaccurate to the flow that small closed conduct records, its flow velocity recorded is accurately.The technical scheme that the embodiment of the present invention provides, pre-determines the corresponding relation of flow velocity corresponding to the internal diameter of closed conduct and instantaneous delivery.Wherein, under multiple flow velocity, the measurement pipeline identical with the internal diameter of closed conduct is measured, determine to be instantaneous delivery value accurately from the fluid volume of measurement pipeline outflow and the ratio of the schedule time in the schedule time, the corresponding relation of the flow velocity that the internal diameter of closed conduct is corresponding and instantaneous delivery can be determined accordingly.And then the flow of closed conduct inner fluid can be recorded.
Optionally, determine that a kind of mode of the corresponding relation of the flow velocity that the internal diameter of closed conduct is corresponding and instantaneous delivery is as follows: according to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, determine the function of the instantaneous delivery qi of closed conduct inner fluid: qi=f (ui), wherein, ui represents flow velocity.
Its another kind of mode is as follows: according to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, by the flow velocity of mode determination closed conduct inner fluid and the corresponding relation of instantaneous delivery of interpolation.
It should be pointed out that and obtaining the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, other modes can also be had to determine above-mentioned corresponding relation, and the present invention no longer enumerates.
Optionally, in the first implementation above-mentioned, specifically can carry out matching to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, obtain the function of the instantaneous delivery qi of closed conduct inner fluid.
The embodiment of the present invention also provides a kind of measuring system of fluids within pipes flow, to realize the Measurement accuracy to microtubule inner fluid flow.As shown in Figure 3, processor 301 and flowmeter 302 is specifically comprised.
Wherein, flowmeter 302 for measuring closed conduct inner fluid, and sends to processor 301 by measuring the real-time flow rate value obtained;
Processor 301, for the corresponding relation according to flow velocity corresponding to the internal diameter of closed conduct and instantaneous delivery, determines the instantaneous delivery value that above-mentioned real-time flow rate value is corresponding; And according to this instantaneous delivery value, determine the cumulative flow value of closed conduct inner fluid.
Wherein, the corresponding relation of the flow velocity that the internal diameter of closed conduct is corresponding and instantaneous delivery, determine according to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, the flow speed value of measurement fluids within pipes under multiple flow velocity is obtained by flowmeter survey, the instantaneous delivery value of measurement fluids within pipes under multiple flow velocity is that in the schedule time, measurement fluids within pipes flows into volume in container and the ratio of this schedule time, and the internal diameter of this measurement pipeline is identical with the internal diameter of above-mentioned closed conduct.
Inventor is realizing finding in process of the present invention, although flowmeter is inaccurate to the flow that small closed conduct records, its flow velocity recorded is accurately.The technical scheme that the embodiment of the present invention provides, pre-determines the corresponding relation of flow velocity corresponding to the internal diameter of closed conduct and instantaneous delivery.Wherein, under multiple flow velocity, the measurement pipeline identical with the internal diameter of closed conduct is measured, determine to be instantaneous delivery value accurately from the fluid volume of measurement pipeline outflow and the ratio of the schedule time in the schedule time, the corresponding relation of the flow velocity that the internal diameter of closed conduct is corresponding and instantaneous delivery can be determined accordingly.And then the flow of closed conduct inner fluid can be recorded.
In the embodiment of the present invention, above-mentioned corresponding relation can be pre-determine and input to processor.Certainly, also can be that processor is predetermined.Accordingly, said system also comprises measurement pipeline, fluid supply apparatus and the flow rate adjustment device identical with the internal diameter of above-mentioned closed conduct.Wherein:
Fluid supply apparatus is used for fluid input measurement pipeline from one end of measurement pipeline;
Flow rate adjustment device inputs the rate of flow of fluid of described measurement pipeline for regulating;
Flowmeter also for measuring the flow speed value of measurement fluids within pipes under multiple flow velocity, and sends to processor by measuring the flow speed value obtained;
Processor is also for according to the fluid volume flowed out from the other end of described measurement pipeline in the schedule time and the ratio of the described schedule time, determine the instantaneous measure of described measurement fluids within pipes under multiple flow velocity, and according to the flow speed value of described measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, determine the corresponding relation of the flow velocity that the internal diameter of described closed conduct is corresponding and instantaneous delivery.
Wherein, fluid supply apparatus and flow rate adjustment device can be realized by same equipment, such as governor impeller.Certainly, also can be realized by different equipment respectively, the present invention is not construed as limiting this.
Flowmeter, by being fixed on the probe of the outside surface of closed conduct, is measured closed conduct inner fluid.Microtubule not only internal diameter is little, and its external diameter is usual also very little.And existing flowmeter, by the restriction of installation requirement, external diameter is less than to the microtubule of 7mm, probe cannot be fixed.For addressing this problem, based on above-mentioned any system embodiment, between the outside surface of described probe and described closed conduct, be provided with pad.
Owing to being provided with pad, making to pop one's head in be fixed on the outside surface of microtubule, thus can measure.
Preferably, the one side that described pad contacts with described closed conduct is fitted with the outside surface of described closed conduct, the one side of described pad and described probe contacts is fitted with described probe, and described pad is not less than the length of described probe clip reload request along the length of described closed conduct axis.
In each measuring system embodiment above-mentioned, processor can arrange with flowmeter outside, such as, utilize the processor of computer; Processor also can be arranged at flowmeter inside, namely utilizes the processor of flowmeter.
The embodiment of the present invention also provides a kind of auxiliary measurement system of fluids within pipes flow, as shown in Figure 4, comprising:
Processor 401, flowmeter 402, measurement pipeline 403, fluid supply apparatus 404 and flow rate adjustment device 405.
Wherein, fluid is inputted described measurement pipeline 403 for the one end from described measurement pipeline 403 by fluid supply apparatus 404;
Described flow rate adjustment device 405 inputs the rate of flow of fluid of described measurement pipeline 403 for regulating;
Described flowmeter 402 for measuring the flow speed value of described measurement pipeline 403 inner fluid under multiple flow velocity, and sends to described processor 401 by measuring the flow speed value obtained;
Described processor 401 is for according to the fluid volume flowed out from the other end of described measurement pipeline 403 in the schedule time and the ratio of the described schedule time, determine the instantaneous measure of described measurement pipeline 403 inner fluid under multiple flow velocity, and according to the flow speed value of described measurement pipeline 403 inner fluid under multiple flow velocity and instantaneous delivery value, determine the corresponding relation of the flow velocity that internal diameter on described measurement pipeline 403 is corresponding and instantaneous delivery.
Wherein, fluid supply apparatus and flow rate adjustment device can be realized by same equipment, such as governor impeller.Certainly, also can be realized by different equipment respectively, the present invention is not construed as limiting this.
Optionally, described flowmeter, by being fixed on the probe of the outside surface of described measurement pipeline, is measured the flow speed value of described measurement fluids within pipes under multiple flow velocity; Pad is provided with between the outside surface of described probe and described measurement pipeline.
Preferably, the one side of described pad and described measurement tube contacts is fitted with the outside surface of described measurement pipeline, the one side of described pad and described probe contacts is fitted with described probe, and described pad is not less than the length of described probe clip reload request in the length of described measurement pipeline axial.
In each auxiliary measurement system embodiment above-mentioned, processor can arrange with flowmeter outside, such as, utilize the processor of computer; Processor also can be arranged at flowmeter inside, namely utilizes the processor of flowmeter.
Suppose to need to internal diameter of the pipeline be 5mm, wall thickness be 1mm copper pipe (see Fig. 5) in flow measure.First can get a thickness is the copper coin of 1mm, by cutting out and bending, two arc length become as shown in Figure 6 are less than semicircle (5*3.14=15.6mm), and length is the pad of the fixed value (meet and be greater than the requirement that ultrasonic flowmeter transducer clamps surface) shown in Fig. 7.Thus probe can be made fixing, so just can install and use ultrasonic flow meter and measure.
Intercept that one section of long enough (as 20cm) is long, internal diameter be 5mm copper pipe as measurement pipeline, as shown in Figure 8, measure and connect governor impeller 802 with one end of pipeline 801, the below placement measuring cup 803 of the other end.The other end of governor impeller stretches into the fluid in water tank 804, this fluid extraction is sent into measurement pipeline 801.Governor impeller 802 is also for regulating flow velocity.Two probes of ultrasonic flow meter 805 are fixed on the outside surface of measurement pipeline respectively by above-mentioned pad 806.
Start governor impeller 802, fluid by pipeline, flows through the probe of ultrasonic flow meter from water tank 804, in final inflow measuring cup.The flow velocity of fluid can be regulated by the size of the valve regulating governor impeller.In the process, ultrasonic flow meter demonstrates flow velocity and flow value, but only has flow speed value to be reliably more stable, and flow value is wrong certainly.
Concrete, adjustment flow velocity, when flow speed stability is u1, then stablizes 1 minute, when ultrasonic flow meter display flow speed stability, and the initial volume V1 simultaneously recorded the time in t1 and volumetric flask.Be t2 after continuing for some time, write down the volume V2 in graduated cylinder.Obtain when flow velocity is u1, actual instantaneous delivery is (V2-V1)/(t2-t1)=q1.
By flow velocity from less u1, increase to u2 gradually, u3, until the flow velocity U that on-the-spot possibility is maximum, just can obtain at a certain fixed temperature t, within the scope of certain flow rate (u1 ~ U), ui-qi mono-group of data of the corresponding different instantaneous delivery of different in flow rate, by these group data, also can fit out corresponding curve and formula .qi=f (ui), then the integrated flow in a period of time is
In actual measurement, two pads made and ultrasonic flowmeter transducer are installed on tested 5mm caliber, after starting measurement, constantly collect real-time flow speed value, by communication port, be sent in processor 807, processor 807 utilizes above-mentioned correction formula, transfer instantaneous delivery in real time, carry out integration, constantly can obtain integrated flow.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a measuring method for fluids within pipes flow, is characterized in that, comprising:
Obtain the real-time flow rate value that flowmeter obtains the measurement of closed conduct inner fluid;
The flow velocity corresponding according to the internal diameter of described closed conduct and the corresponding relation of instantaneous delivery, determine the instantaneous delivery value that described real-time flow rate value is corresponding;
According to described instantaneous delivery value, determine the cumulative flow value of described closed conduct inner fluid;
Wherein, the corresponding relation of the flow velocity that the internal diameter of described closed conduct is corresponding and instantaneous delivery, determine according to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, the flow speed value of described measurement fluids within pipes under multiple flow velocity is obtained by flowmeter survey, the instantaneous delivery value of described measurement fluids within pipes under multiple flow velocity is that the internal diameter of described measurement pipeline is identical with the internal diameter of described closed conduct from the fluid volume of described measurement pipeline outflow and the ratio of the described schedule time in the schedule time.
2. method according to claim 1, is characterized in that, determines that the mode of the corresponding relation of the flow velocity that the internal diameter of described closed conduct is corresponding and instantaneous delivery is as follows:
According to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, determine the function of the instantaneous delivery qi of described closed conduct inner fluid: qi=f (ui), wherein, ui represents flow velocity; Or,
According to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, determine the described flow velocity of closed conduct inner fluid and the corresponding relation of instantaneous delivery by the mode of interpolation.
3. method according to claim 2, is characterized in that, according to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, determines the function of the instantaneous delivery qi of described closed conduct inner fluid, comprising:
Matching is carried out to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, obtains the function of the instantaneous delivery qi of described closed conduct inner fluid.
4. a measuring system for fluids within pipes flow, is characterized in that, comprising:
Processor and flowmeter;
Described flowmeter is used for measuring closed conduct inner fluid, and sends to processor by measuring the real-time flow rate value obtained;
Described processor is used for the corresponding relation according to flow velocity corresponding to the internal diameter of described closed conduct and instantaneous delivery, determines the instantaneous delivery value that described real-time flow rate value is corresponding; And according to described instantaneous delivery value, determine the cumulative flow value of described closed conduct inner fluid;
Wherein, the corresponding relation of the flow velocity that the internal diameter of described closed conduct is corresponding and instantaneous delivery, determine according to the flow speed value of measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, the flow speed value of described measurement fluids within pipes under multiple flow velocity is obtained by flowmeter survey, the instantaneous delivery value of described measurement fluids within pipes under multiple flow velocity is that in the schedule time, described measurement fluids within pipes flows into volume in container and the ratio of the described schedule time, and the internal diameter of described measurement pipeline is identical with the internal diameter of described closed conduct.
5. system according to claim 4, is characterized in that, described flowmeter, by being fixed on the probe of the outside surface of described closed conduct, is measured described closed conduct inner fluid; Pad is provided with between the outside surface of described probe and described closed conduct.
6. system according to claim 5, it is characterized in that, the one side that described pad contacts with described closed conduct is fitted with the outside surface of described closed conduct, the one side of described pad and described probe contacts is fitted with described probe, and described pad is not less than the length of described probe clip reload request along the length of described closed conduct axis.
7. the system according to any one of claim 4 ~ 6, is characterized in that, described system also comprises measurement pipeline, fluid supply apparatus and the flow rate adjustment device identical with the internal diameter of described closed conduct;
Described fluid supply apparatus is used for, from one end of described measurement pipeline, fluid is inputted described measurement pipeline;
Described flow rate adjustment device inputs the rate of flow of fluid of described measurement pipeline for regulating;
Described flowmeter also for measuring the flow speed value of described measurement fluids within pipes under multiple flow velocity, and sends to described processor by measuring the flow speed value obtained;
Described processor is also for according to the fluid volume flowed out from the other end of described measurement pipeline in the schedule time and the ratio of the described schedule time, determine the instantaneous measure of described measurement fluids within pipes under multiple flow velocity, and according to the flow speed value of described measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, determine the corresponding relation of the flow velocity that the internal diameter of described closed conduct is corresponding and instantaneous delivery.
8. an auxiliary measurement system for fluids within pipes flow, is characterized in that, comprising:
Processor, flowmeter, measurement pipeline, fluid supply apparatus and flow rate adjustment device;
Described fluid supply apparatus is used for, from one end of described measurement pipeline, fluid is inputted described measurement pipeline;
Described flow rate adjustment device inputs the rate of flow of fluid of described measurement pipeline for regulating;
Described flowmeter is used for measuring the flow speed value of described measurement fluids within pipes under multiple flow velocity, and sends to described processor by measuring the flow speed value obtained;
Described processor is used for fluid volume according to flowing out from the other end of described measurement pipeline in the schedule time and the ratio of the described schedule time, determine the instantaneous measure of described measurement fluids within pipes under multiple flow velocity, and according to the flow speed value of described measurement fluids within pipes under multiple flow velocity and instantaneous delivery value, determine the corresponding relation of the flow velocity that internal diameter on described measurement pipeline is corresponding and instantaneous delivery.
9. system according to claim 8, is characterized in that, described flowmeter, by being fixed on the probe of the outside surface of described measurement pipeline, is measured the flow speed value of described measurement fluids within pipes under multiple flow velocity; Pad is provided with between the outside surface of described probe and described measurement pipeline.
10. system according to claim 9, it is characterized in that, the one side of described pad and described measurement tube contacts is fitted with the outside surface of described measurement pipeline, the one side of described pad and described probe contacts is fitted with described probe, and described pad is not less than the length of described probe clip reload request in the length of described measurement pipeline axial.
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| CN107036684A (en) * | 2017-05-11 | 2017-08-11 | 广东卓信环境科技股份有限公司 | A kind of flowmeter fault detection method and device |
| CN112698052A (en) * | 2021-01-07 | 2021-04-23 | 深圳云顶智慧科技有限公司 | Working method, controller and system of flow rate metering device |
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| CN107036684A (en) * | 2017-05-11 | 2017-08-11 | 广东卓信环境科技股份有限公司 | A kind of flowmeter fault detection method and device |
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| CN112698052B (en) * | 2021-01-07 | 2023-05-16 | 深圳云顶智慧科技有限公司 | Working method, controller and system of flow velocity metering device |
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| CN105181049B (en) | 2018-07-31 |
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