CN210625764U - Wide-range flow measuring device - Google Patents
Wide-range flow measuring device Download PDFInfo
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- CN210625764U CN210625764U CN202020521535.4U CN202020521535U CN210625764U CN 210625764 U CN210625764 U CN 210625764U CN 202020521535 U CN202020521535 U CN 202020521535U CN 210625764 U CN210625764 U CN 210625764U
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Abstract
The utility model discloses a wide range flow measuring device, include the measurement pipeline and set up respectively in the measurement pipeline both ends and rather than the influent stream pipeline of intercommunication and the pipeline of effluenting, the measurement pipeline includes main measuring path and at least one measurement branch road that both ends communicate respectively, main measuring path and measurement branch road intercommunication department pass through fluid shunt assembly respectively with influent stream pipeline with the pipeline intercommunication of effluenting, be equipped with on the main measuring path and be used for measuring the process the flow measuring device of the fluid flow of main measuring path, still be equipped with the flow computer who is connected with flow measuring device on the main measuring path, every all be equipped with auxiliary measuring device on the branch measuring path, every still be equipped with the control flap who is connected through communication line and flow computer on the branch measuring path. The utility model is used for solve that the fluid measurement flow changes greatly, the fluid flow is undulant big, the error is big and the big scheduling problem of pressure loss.
Description
Technical Field
The utility model belongs to the technical field of flow measurement, concretely relates to wide range flow measuring device.
Background
In the field of flow measurement, the flow rate typically varies far beyond the measurement range of conventional flow meters. The problems can be solved by installing a plurality of sets of flowmeters with different measuring ranges in parallel, but the problems of high cost, high failure rate, control linkage lag and other safety risks exist. For example, gas-liquid separation type multiphase flow devices are widely used in oil and gas fields, which are commonly used for metering multiple wells in metering stations, and one metering device is generally used for alternate metering of more than ten oil and gas wells. However, the production of each oil and gas well has large difference, which requires a flow meter to have a very large measurement range and low pressure loss, but the existing flow meter can not solve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that just to above-mentioned prior art not enough, provide a wide range flow measuring device for it is big to solve the fluid measurement flow variation, the fluid flow is undulant big, the error is big and the big scheduling problem of pressure loss.
The utility model adopts the technical proposal that: a wide-range flow measuring device comprises a measuring pipeline, and an inflow pipeline and an outflow pipeline which are respectively arranged at two ends of the measuring pipeline and communicated with the measuring pipeline, the measuring pipeline comprises a main measuring pipeline and at least one branch measuring pipeline, the two ends of the main measuring pipeline are respectively communicated with each other, the communication position of the main measuring pipeline and the branch measuring pipeline is respectively communicated with the inflow pipeline and the outflow pipeline through a fluid flow splitting assembly, the main measuring path is provided with a flow measuring device for measuring the flow of the fluid passing through the main measuring path, the measuring main circuit is also provided with a flow computer connected with the flow measuring device, each measuring branch circuit is provided with an auxiliary measuring device, the maximum fluid throughput of the flow measuring device and the maximum fluid throughput of each auxiliary measuring device are proportionally set, and each measuring branch is also provided with a control valve connected with a flow computer through a communication line.
In one embodiment, the fluid diversion assembly is one of a tee, a header or a proportional distributor.
In one embodiment, the flow measuring device is one of a throttling flow meter, a vortex flow meter, a turbine flow meter, a vortex precession flow meter or a mass flow meter.
In one embodiment, the ratio of the maximum fluid throughput of the flow measuring device to the maximum fluid throughput of the auxiliary measuring device is 1-100: 1-100.
The beneficial effects of the utility model reside in that:
1. the double-path ultra-wide range metering can be realized, the branch without a flow computer has no mandatory requirement on front and rear straight pipe sections, no over-high pressure loss is generated during large flow, no excessive flow computers are needed, the cost is low, the structure is simple, and the failure rate is low;
2. the flow computer can open and close the control valve according to the flow so as to ensure the metering accuracy;
3. the flow measuring device and the auxiliary measuring device have the same shape and parameters and can be various devices for measuring flow, so that the measuring precision is ensured, and the measuring mode is diversified;
4. the fluid diversion assembly is arranged, so that fluid can be distributed to the main measuring path and the branch measuring path according to the pipe diameter proportion of the main measuring path and the branch measuring path;
5. the utility model discloses do not limit the mounting means, but vertical installation also horizontal installation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. an inflow pipe; 2. an outflow conduit; 3. measuring a pipeline; 4. a fluid diversion assembly; 5. a flow measuring device; 6. a flow computer; 7. an auxiliary measuring device; 8. a communication line; 9. a control valve; 31. measuring a main road; 32. and measuring the branch.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a wide-range flow measuring device includes a measuring pipeline 3, and an inflow pipeline 1 and an outflow pipeline 2 respectively disposed at two ends of the measuring pipeline 3 and communicated with the measuring pipeline, the measuring pipeline 3 includes a main measuring path 31 and at least one branch measuring path 32 respectively communicated with the two ends of the measuring pipeline 3, the communication position of the main measuring path 31 and the branch measuring path 32 is respectively communicated with the inflow pipeline 1 and the outflow pipeline 2 through a fluid flow splitting assembly 4, a flow measuring device 5 for measuring the flow of fluid passing through the main measuring path 31 is disposed on the main measuring path 31, a flow computer 6 connected with the flow measuring device 5 is further disposed on the main measuring path 31, an auxiliary measuring device 7 is disposed on each branch measuring path 32, the maximum throughput of fluid of the flow measuring device 5 and the maximum throughput of fluid of each auxiliary measuring device 7 are set in proportion, each measuring branch 32 is also provided with a control valve 9 connected with the flow computer 6 through a communication line 8.
The device can realize double-path ultra-wide range metering, has no mandatory requirement on front and rear straight pipe sections of a branch without a flow computer 6, and cannot generate over-high pressure loss when the flow rate is large; meanwhile, the flow measuring device 5 and the auxiliary measuring device 7 are identical in shape and internal structure to ensure that the flow rates of the main measuring path 31 and the branch measuring path 32 are the same. However, the auxiliary measuring device 7 does not participate in the flow measurement, and the flow measurement is performed only through signals of the communication line 8 and the flow computer 6, so that excessive flow computers 6 are not needed, and the measuring device is low in cost, simple in structure and low in failure rate. The control valve 9 may be automatic or manual, and may be selected according to the situation, but its on-off signal is still transmitted to the flow computer 6 through the communication line 8. Meanwhile, the number of the measuring branches 32 may be 2, 3, 4, or 5, and the measuring branches are set according to the actual situation of flow measurement.
In this embodiment, the fluid diversion assembly 4 is one of a tee, a header, or a proportional distributor. The fluid diversion assembly 4 is arranged to distribute the fluid to the main measuring path 31 and the branch measuring path 32 according to the pipe diameter ratio of the main measuring path 31 and the branch measuring path 32.
In this embodiment, the flow measuring device 5 is one of a throttling flowmeter, a vortex shedding flowmeter, a turbine flowmeter, a vortex precession flowmeter, or a mass flowmeter. The flow rate measuring device 5 is generally used as the above-mentioned device but not limited thereto, and its model and parameters are determined according to actual conditions.
In the present embodiment, the ratio between the maximum throughput of fluid of the flow measuring device 5 and the maximum throughput of fluid of the auxiliary measuring device 7 is 1-100: 1-100. The maximum throughput of fluid of the flow measuring device 5 and the maximum throughput of fluid of the auxiliary measuring device 7 are set to be a fixed ratio, which facilitates the calculation of the flow rate. The fixed ratio is conventionally within the above range, but is not limited to the above range. The maximum throughput ratio can be changed by changing the model and parameters of the flow measuring device 5 and the auxiliary measuring device 7.
In the measuring device, a flow computer 6 presets a single-channel measuring range. From the inflow conduit 1, the fluid enters the fluid diversion assembly 4 and then the main measurement path 31, the flow rate of which is measured by the flow measurement device 5 and the measured signal is transmitted to the flow computer 6, at which time the control valve 9 is in the closed state. When the fluid flow exceeds the preset single-channel range, the flow computer 6 controls or manually opens the control valve 9 arranged on the measuring branch 32, and the fluid enters the measuring branch 32; the control valve 9 transmits its opening signal to the flow computer 6, the fluid flow of the main measuring path 31 is measured by the flow measuring device 5, the actual flow of the branch measuring path 32 is calculated according to the ratio of the maximum fluid throughput of the flow measuring device 5 to the maximum fluid throughput of the auxiliary measuring device 7, and the measured fluid flow is obtained by adding the data. Similarly, when the fluid flow is less than the preset single-channel measuring range, the flow computer 6 controls or manually closes the control valve 9. The pipe diameter ratio of the main pipe 31 and the branch pipe 32 to be measured by the device is calculated according to the range of differential pressure measuring range and the coverage ratio, and is determined by considering the change condition of the site working condition, and the pipe diameter range is 1 mm-5000 mm.
The fluid diversion component 4 used by the device is not limited to various commonly used tee joints, manifolds and various proportional distributors, the type and the parameters are determined according to the actual conditions, and the type and the parameters of the flow computer 6 and the control valve 9 are determined according to the actual conditions.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (4)
1. The utility model provides a wide range flow measuring device, includes the measurement pipeline and sets up respectively in the inflow pipeline and the outflow pipeline that measurement pipeline both ends and communicate with it, its characterized in that: the measuring pipeline comprises a main measuring pipeline and at least one branch measuring pipeline, the two ends of the main measuring pipeline are respectively communicated with the main measuring pipeline and the branch measuring pipeline, the communication position of the main measuring pipeline and the branch measuring pipeline is respectively communicated with the inflow pipeline and the outflow pipeline through a fluid flow splitting assembly, a flow measuring device used for measuring the flow of fluid passing through the main measuring pipeline is arranged on the main measuring pipeline, a flow computer connected with the flow measuring device is further arranged on the main measuring pipeline, an auxiliary measuring device is arranged on each branch measuring pipeline, the maximum throughput of the fluid of the flow measuring device and the maximum throughput of the fluid of each auxiliary measuring device are proportionally arranged, and a control valve connected with the flow computer through a communication line is further arranged on each branch measuring pipeline.
2. The wide-range flow measuring device of claim 1, wherein: the fluid diversion component is one of a tee joint, a header or a proportional distributor.
3. The wide-range flow measuring device of claim 1, wherein: the flow measuring device is one of a throttling flowmeter, a vortex shedding flowmeter, a turbine flowmeter, a precession vortex flowmeter or a mass flowmeter.
4. The wide-range flow measuring device of claim 1, wherein: the ratio of the maximum fluid throughput of the flow measuring device to the maximum fluid throughput of the auxiliary measuring device is 1-100: 1-100.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020521535.4U CN210625764U (en) | 2020-04-10 | 2020-04-10 | Wide-range flow measuring device |
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| CN202020521535.4U CN210625764U (en) | 2020-04-10 | 2020-04-10 | Wide-range flow measuring device |
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| CN210625764U true CN210625764U (en) | 2020-05-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358171A (en) * | 2021-06-01 | 2021-09-07 | 泰州建源仪表有限公司 | NB-IOT intelligent water meter with sensitive water quantity counting |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358171A (en) * | 2021-06-01 | 2021-09-07 | 泰州建源仪表有限公司 | NB-IOT intelligent water meter with sensitive water quantity counting |
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