CN212320858U - Production testing device for non-full pipe flowmeter - Google Patents
Production testing device for non-full pipe flowmeter Download PDFInfo
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- CN212320858U CN212320858U CN202020830834.6U CN202020830834U CN212320858U CN 212320858 U CN212320858 U CN 212320858U CN 202020830834 U CN202020830834 U CN 202020830834U CN 212320858 U CN212320858 U CN 212320858U
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Abstract
The utility model discloses a non-full pipe flowmeter production testing arrangement, measuring channel including the level setting, measuring channel's one end is connected with water supply installation, measuring channel's the other end is connected with measuring device, measuring device includes liquid volume measuring device and liquid weight measuring device. The water supply device is used for supplying water in the test process and ensuring the water pressure to be constant; the measuring channel is horizontally arranged, so that the stability of water flow is guaranteed, and the problems of inaccurate measurement and test failure caused by water flow fluctuation and wave generation are prevented. The measuring device can adopt volume measurement and weight measurement, the volume measurement is convenient for direct reading of a measurer, and the weight measurement is convenient for realizing automatic output results.
Description
Technical Field
The utility model relates to a flowmeter detection area especially relates to non-full pipe flowmeter production testing arrangement.
Background
An electromagnetic flowmeter belongs to a kind of fast flowmeter, and is an instrument for measuring the flow of conductive fluid by an electromagnetic induction method. The principle is that a magnetic field is placed in the direction perpendicular to the flowing phase of the fluid, when the conductive fluid passes through, the fluid cuts magnetic lines of force to generate an induced potential, and the induced potential is led out by two electrodes. When the magnetic field intensity is unchanged and the diameter of the pipeline is constant, the magnitude of the induced potential is only related to the flow velocity of the fluid, and the flow value can be determined by converting the induced signal into the flow velocity. Its advantages are no moving parts in measuring pipeline or parts projected from pipeline, and less pressure loss. The volume flow measured by the electromagnetic flowmeter is not obviously influenced by the density, viscosity, temperature and pressure change of the fluid, and can be applied to the measurement of corrosive fluid, so that the electromagnetic flowmeter is widely applied to industrial production.
Most of the electromagnetic flow meters on the market at present can only be used for flow measurement of a full pipe, and for a fluid unfilled pipe or a fluid conversion process between the full pipe and a non-full pipe, because the cross-sectional area of the fluid in the pipe is no longer the cross-sectional area of the measuring pipe, the result obtained by using the traditional flow meter is not accurate, the flow meter detection method of the non-full pipe needs to consider two parameters, namely the average flow rate and the liquid level height of the fluid in the measuring pipe, and then calibrate the flow meter.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: to the problem that above-mentioned exists, provide non-full pipe flowmeter production testing arrangement, through test and the detection to the flowmeter of non-full pipe, and then can realize the calibration of the flowmeter of non-full pipe to whether can detect the flowmeter of non-full pipe and reach qualified, guarantee the product quality of dispatching from the factory.
The utility model adopts the technical scheme as follows:
non-full pipe flowmeter production testing arrangement, including the measuring channel of level setting, the one end of measuring channel is connected with water supply installation, the other end of measuring channel is connected with measuring device, measuring device includes liquid volume measuring device and liquid weight measuring device. The water supply device is used for supplying water in the test process and ensuring the water pressure to be constant; the measuring channel is horizontally arranged, so that the stability of water flow is guaranteed, and the problems of inaccurate measurement and test failure caused by water flow fluctuation and wave generation are prevented. The measuring device can adopt volume measurement and weight measurement, the volume measurement is convenient for direct reading of a measurer, and the weight measurement is convenient for realizing automatic output results.
Further, the utility model discloses a preferred structure of non-full pipe flowmeter production testing arrangement, the middle part of measuring channel is provided with non-full pipe flowmeter, the front end of non-full pipe flowmeter is connected with the flowmeter standard table; the rear end of the non-full pipe flowmeter is connected with a flowmeter outlet measuring pipeline, and the rear end of the flowmeter outlet measuring pipeline is connected with a drain pipe through a Y-pipe. The flowmeter standard table is used for measuring standard data thereof. The drain is used for calibration when a full pipe is detected.
Furthermore, the rear end of the outlet measuring pipeline of the flowmeter is connected with a second electric valve through a Y-shaped pipe, and the water outlet end of the second electric valve is communicated with the measuring device through a pipeline.
Furthermore, the front end of the flowmeter standard meter is connected with a first electric valve, and the front end of the first electric valve is connected with a water supply device.
Further, water supply installation includes the suction pump, the input of suction pump passes through the pipeline and links to each other with the water source, the output and the first electric valve of suction pump are linked together, the height of suction pump is less than the measurement channel.
Further, the water outlet of the water discharge pipe is higher than the measuring channel in level; the length of the outlet measuring pipeline of the flowmeter is more than or equal to 10 times of the diameter of the non-full pipe flowmeter pipeline. The length of the pipeline is measured by lengthening the outlet of the flowmeter, so that the stability of water flow is guaranteed, and the test accuracy is guaranteed.
Furthermore, the measuring device comprises an electronic platform scale, a measuring barrel is arranged on the electronic platform scale, and the measuring barrel is communicated with the water outlet end of the second electric valve.
And the water pump, the first electric valve, the flowmeter standard meter, the non-full pipe flowmeter, the second electric valve and the electronic platform scale are in signal connection with the control center through cables. The control center is used for controlling the operation of the water suction pump, the first electric valve and the second electric valve and receiving data collected by the flowmeter standard meter, the non-full pipe flowmeter and the electronic platform scale.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. by the device, the flowmeter with the non-full pipe can be tested, the accuracy and the reliability of the measurement can be detected, and the flowmeter with the non-full pipe can be calibrated;
2. through setting up the detection device of dedicated non-full-pipe's flowmeter, can improve the detection efficiency of non-full-pipe's flowmeter greatly, improve detection effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the detection structure of the present invention during full pipe detection;
FIG. 3 is a schematic view of the detection structure of the present invention during the detection of a non-full pipe;
the labels in the figure are: the water pump is 1, the first electric valve is 2, the flowmeter standard meter is 3, the non-full-pipe flowmeter is 4, the flowmeter outlet measuring pipeline is 5, the second electric valve is 6, the measuring cylinder is 7, the electronic platform scale is 8, the control center is 9, and the drain pipe is 10.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
as shown in fig. 1, non-full pipe flowmeter production testing arrangement, including the measuring channel of level setting, measuring channel's one end is connected with water supply installation, water supply installation includes suction pump 1, suction pump 1's input passes through the pipeline and links to each other with the water source, suction pump 1's output is linked together with first electric valve 2, suction pump 1 highly is less than measuring channel.
The water outlet end of the first electric valve 2 is connected with a flowmeter standard meter 3; the flowmeter standard meter 3 is connected with a non-full pipe flowmeter 4 to be tested, and the front end of the non-full pipe flowmeter 4 is connected with the flowmeter standard meter 3; the rear end of the non-full pipe flowmeter 4 is connected with a flowmeter outlet measuring pipeline 5, and the rear end of the flowmeter outlet measuring pipeline 5 is connected with a drain pipe 10 through a Y-pipe. The water outlet of the water discharge pipe 10 is higher than the measuring channel in horizontal height; the length of the flow meter outlet measuring pipeline 5 is more than or equal to 10 times of the diameter of the pipeline of the non-full pipe flow meter 4. The length of the pipeline 5 is measured by lengthening the outlet of the flowmeter, so that the stability of water flow is guaranteed, and the test accuracy is guaranteed. Flow meter calibration table 3 was used to measure its calibration data. The drain 10 is used for calibration when a full pipe is detected.
The rear end of the flow meter outlet measuring pipeline 5 is connected with a second electric valve 6 through a Y-shaped pipe, and the water outlet end of the second electric valve 6 is communicated with a measuring device through a pipeline. The other end of the measuring channel is connected with a measuring device, and the measuring device comprises a liquid volume measuring device and a liquid weight measuring device. The measuring device comprises an electronic platform scale 8, a measuring barrel 7 is arranged on the electronic platform scale 8, and the measuring barrel 7 is communicated with the water outlet end of the second electric valve 6.
The water supply device is used for supplying water in the test process and ensuring the water pressure to be constant; the measuring channel is horizontally arranged, so that the stability of water flow is guaranteed, and the problems of inaccurate measurement and test failure caused by water flow fluctuation and wave generation are prevented. The measuring device can adopt volume measurement and weight measurement, the volume measurement is convenient for a measurer to measure direct degree, and the weight measurement is convenient for realizing an automatic output result.
The water pump control system comprises a control center 9, wherein the water pump 1, a first electric valve 2, a flowmeter standard meter 3, a non-full pipe flowmeter 4, a second electric valve 6 and an electronic platform scale 8 are in signal connection with the control center 9 through cables. The control center 9 is used for controlling the operation of the water pump 1, the first electric valve 2 and the second electric valve 6 and receiving data collected by the flowmeter standard meter 3, the non-full pipe flowmeter 4 and the electronic platform scale 8.
In the specific operation process, the non-full pipe flowmeter 4 to be tested is connected to a test platform. The device is started.
Firstly, the empty pipe parameter calibration is carried out on the flowmeter under the condition that the pipeline is dry, the electronic platform scale 8 is reset to zero, the measuring cylinder 7 is dry, and the output data of the non-full pipe flowmeter 4 under the empty pipe state is recorded through the control center 9. And then, full pipe calibration is carried out, the second electric valve 6 is closed, the water suction pump 1 is started through the control center 9, the first electric valve 2 is opened until the water is full of the measuring pipeline and the water is static, and the state of the non-full pipe flowmeter 4 is recorded under the condition.
And then, a full pipe test is carried out, the water suction pump 1 is started under the control center 9, the first electric valve 2 is opened, the second electric valve 6 is in a closed state, and the first electric valve 2 is adjusted to enable the water flow to tend to be stable, and the maximum flow is usually set to be 50%. The water flows along the water suction pump 1, the first electric valve 2, the flowmeter standard 3, the non-full pipe flowmeter 4, the flowmeter outlet measuring pipeline 5 and the water discharge pipe 10, as shown in fig. 2.
And adjusting the first electric valve 2 to enable the flow to reach the full value of the non-full pipe flowmeter 4, finally draining the liquid passing through the non-full pipe flowmeter 4 into the measuring cylinder 7 through the drain pipe 10, reading the numerical value M of the electronic platform scale 8, calculating the accumulated flow value displayed by the non-full pipe flowmeter 4 and the non-full pipe flowmeter 4 within the set time, and calibrating the full pipe state.
Then, non-full pipe calibration is carried out, a water-passing test is carried out on the non-full pipe flowmeter 4, the second electric valve 6 is opened, and water flow in the whole test process directly enters the measuring cylinder 7; as shown in fig. 3; different pipeline resistances are simulated by adjusting the rear second electric valve 6, the liquid level area of the liquid accounts for 10%, 30%, 50%, 80% and 100% of the full pipe proportion through the first electric valve 2, and the liquid flow rate is required to be 10% -100%, preferably 50% of the flow rate corresponding to the nominal full degree of the non-full pipe flowmeter 4 in the measurement process; recording the flow value q of the non-full pipe flowmeter 4, and weighing a measuring cylinder 7M by using a platform scale, wherein the density of water is c; and (3) calculating calibration coefficients of the non-full pipe flowmeter 4 in different states by using the values of v-M/c, c-1 and q-v/t.
Therefore, the flowmeter with the non-full pipe can be tested, the accuracy and the reliability of the measurement can be detected, and the flowmeter with the non-full pipe can be calibrated; through setting up the detection device of dedicated non-full-pipe's flowmeter, can improve the detection efficiency of non-full-pipe's flowmeter greatly, improve detection effect.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. Non-full pipe flowmeter production testing arrangement, its characterized in that: the measuring channel comprises a horizontally arranged measuring channel, one end of the measuring channel is connected with a water supply device, the other end of the measuring channel is connected with a measuring device, and the measuring device comprises a liquid volume measuring device and a liquid weight measuring device.
2. The non-full pipe flowmeter production test device of claim 1, wherein: a non-full pipe flowmeter (4) is arranged in the middle of the measuring channel, and the front end of the non-full pipe flowmeter (4) is connected with a flowmeter standard meter (3); the rear end of the non-full pipe flowmeter (4) is connected with a flowmeter outlet measuring pipeline (5), and the rear end of the flowmeter outlet measuring pipeline (5) is connected with a drain pipe (10) through a Y-pipe.
3. The non-full pipe flowmeter production test device of claim 2, wherein: the rear end of the flow meter outlet measuring pipeline (5) is connected with a second electric valve (6) through a Y-shaped pipe, and the water outlet end of the second electric valve (6) is communicated with the measuring device through a pipeline.
4. The non-full pipe flowmeter production test device of claim 3, wherein: the front end of the flowmeter standard meter (3) is connected with a first electric valve (2), and the front end of the first electric valve (2) is connected with a water supply device.
5. The non-full pipe flowmeter production test device of claim 4, wherein: the water supply device comprises a water suction pump (1), the input end of the water suction pump (1) is connected with a water source through a pipeline, the output end of the water suction pump (1) is communicated with a first electric valve (2), and the height of the water suction pump (1) is lower than a measurement channel.
6. The non-full pipe flowmeter production test device of claim 5, wherein: the water outlet of the water discharge pipe (10) is higher than the measuring channel in horizontal height; the length of the outlet measuring pipeline (5) of the flowmeter is more than or equal to 10 times of the diameter of the pipeline of the non-full pipe flowmeter (4).
7. The non-full pipe flowmeter production test device of claim 6, wherein: the measuring device comprises an electronic platform scale (8), a measuring barrel (7) is arranged on the electronic platform scale (8), and the measuring barrel (7) is communicated with the water outlet end of the second electric valve (6).
8. The non-full pipe flowmeter production test device of claim 7, wherein: the water pump type flowmeter is characterized by comprising a control center (9), wherein the water pump (1), the first electric valve (2), the flowmeter standard meter (3), the non-full pipe flowmeter (4), the second electric valve (6) and the electronic platform scale (8) are in signal connection with the control center (9) through cables.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020830834.6U CN212320858U (en) | 2020-05-18 | 2020-05-18 | Production testing device for non-full pipe flowmeter |
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| CN202020830834.6U CN212320858U (en) | 2020-05-18 | 2020-05-18 | Production testing device for non-full pipe flowmeter |
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| CN212320858U true CN212320858U (en) | 2021-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609902A (en) * | 2020-05-18 | 2020-09-01 | 四川中大华瑞能源技术有限公司 | Production and testing device and method for partial-pipe flowmeter |
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- 2020-05-18 CN CN202020830834.6U patent/CN212320858U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609902A (en) * | 2020-05-18 | 2020-09-01 | 四川中大华瑞能源技术有限公司 | Production and testing device and method for partial-pipe flowmeter |
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Address after: 2107, Tower B, Maoye center, No.28, north section of Tianfu Avenue, high tech Zone, Chengdu, Sichuan 610041 Patentee after: Sichuan Zhongda Huarui Energy Group Co.,Ltd. Address before: 2107, Tower B, Maoye center, No.28, north section of Tianfu Avenue, high tech Zone, Chengdu, Sichuan 610041 Patentee before: Sichuan Huarui High Energy Technology Co.,Ltd. |
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