CN210689730U - Flow testing device - Google Patents
Flow testing device Download PDFInfo
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- CN210689730U CN210689730U CN201921874743.6U CN201921874743U CN210689730U CN 210689730 U CN210689730 U CN 210689730U CN 201921874743 U CN201921874743 U CN 201921874743U CN 210689730 U CN210689730 U CN 210689730U
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Abstract
The utility model provides a flow test device, include: the device comprises a unit to be tested, a pressure buffer unit and a test liquid buffer, wherein the unit to be tested is connected with the pressure buffer unit through a first pipeline; the test liquid buffer is connected with the liquid storage unit through a third pipeline; the test liquid buffer is internally provided with a timing control assembly, the first pipeline is communicated with the third pipeline through a second pipeline, the second pipeline is provided with a pressure measuring unit and a pressure adjusting unit, a control valve is arranged on the third pipeline between a connector of the second pipeline and the third pipeline and the liquid storage unit, the timing control assembly, the control valve and the pressure measuring unit are all connected with a control and display unit, and the control and display unit is used for controlling the control valve, calculating the flow and displaying the calculation result and the received pressure information. The device has the advantages of simple structure, easy preparation, low cost and simple maintenance, can realize full-automatic real-time measurement of the flow of liquid conveying equipment such as water pumps, metering pumps, pipelines and the like, and has high precision of test results.
Description
Technical Field
The utility model relates to a flow detection field especially relates to a flow test device.
Background
At present, the flow meter is used for measuring flow, and the flow meters on the market comprise an electromagnetic flow meter, the metering of reinjection water of an oil field single well, a turbine flow meter, a glass flow meter and the like. The detection principle of each flow device is as follows:
electromagnetic flowmeter takes into account the examination of water gauge and generally adopts the mass method, measure the accumulative flow through high accuracy electronic scale, compare with the accumulative flow of the flowmeter of being examined of flowing through, measure this accuracy of being examined measuring apparatus, there is the problem of uncertainty in the electronic scale itself in the use, the inhomogeneous error problem that also can cause weighing and volume conversion of density of liquid, the reflection is on the examination result, the problem that the measurement uncertainty is big on the large side can appear, and the influence that initial flow is unstable to bringing the examination result, moreover need to accomplish the examination from the laboratory, the normal production of enterprise can be influenced in the flowmeter loading and unloading.
The measurement of reinjection water of a single well in an oil field is used for measuring the water injection quantity of the single well in unit time by a vertical (angle type) electromagnetic flowmeter, the single well is widely distributed in an area, a large number of electromagnetic flowmeters are required for replacement cost and long verification time in centralized verification and calibration, and most water flow verification devices are not provided with vertical flowmeter verification equipment.
The turbine flowmeter has high requirement on medium cleanliness during testing, and during long-term circulation of the medium, generated precipitated impurities and the like can cause the turbine to be stuck, so that the measurement error is large and even the turbine fails.
The glass flowmeter is mainly used for places with low precision and high water flow pulsation, and cannot meet the requirements on high precision under the working condition of stable water pressure.
In the traditional detection method, more liquid media are needed, density deviation can be caused by water quality precipitation, the maintenance cost of the high-precision electronic scale is high, and the working environment can influence the measurement stability of the electronic scale; the verification work needs to be completed in a laboratory with a good environment; the traditional calibrating device is large in size, high in input cost and incapable of moving, the problem of calibrating on a production field cannot be solved, and the enterprise submission cost is high.
In summary, the existing flowmeters in the market have respective problems, and cannot meet the requirements of users on low cost, easy maintenance and high precision of the flow rate detection device.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcomings of the prior art, an object of the present invention is to provide a flow testing device, which is simple in manufacture, low in cost, easy to maintain and high in precision.
To achieve the above and other related objects, one embodiment of the present invention provides a flow rate measuring device, comprising: the device comprises a unit to be tested, a pressure buffering unit and a testing liquid buffer, wherein the unit to be tested is connected with the pressure buffering unit through a first pipeline; the test liquid buffer is connected with the liquid storage unit through a third pipeline; the test liquid buffer is internally provided with a timing control assembly, the first pipeline is communicated with the third pipeline through a second pipeline, the second pipeline is provided with a pressure measurement unit and a pressure regulation unit, a control valve is arranged on the third pipeline between a connector of the second pipeline and the third pipeline and a liquid storage unit, the timing control assembly, the control valve and the pressure measurement unit are all connected with a control and display unit, and the control and display unit is used for controlling the control valve, calculating the flow and displaying the calculation result and the received pressure information.
Optionally, the unit under test comprises a pump under test or a pipe under test.
Optionally, the liquid storage unit includes a liquid storage tank body.
Optionally, the pressure damping unit comprises a pulsation damper.
Optionally, the timing control assembly comprises a low level sensor and a high level sensor.
Optionally, the control valve is a normally open solenoid valve.
Optionally, the pressure measurement unit comprises a pressure sensor.
Optionally, the pressure regulating unit comprises a backpressure valve.
Optionally, a manual test key is arranged on the control and display unit.
The embodiment of the utility model provides an above-mentioned technical scheme compares with prior art, this device simple structure, easily preparation, with low costs, maintenance are simple, can realize the full-automatic real-time measurement of flow to transport liquid equipment such as water pump, measuring pump, pipeline, and the test result precision is high (can be accurate to 0.01 ml/min).
Drawings
Fig. 1 shows a schematic structural diagram of a flow rate detection device according to the present invention.
Description of the element reference numerals
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, changes of the ratio relationship or adjustment of the sizes should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a flow rate testing device, which is characterized by comprising: the device comprises a unit to be tested 12, a pressure buffer unit 3 and a test liquid buffer 7, wherein the unit to be tested 12 is connected with the pressure buffer unit 3 through a first pipeline 201; the unit to be tested 12 can put the testing solution into the testing solution buffer 7/the solution storage unit 13, and the specific putting means can be extraction or pumping. The test solution buffer 7 is connected with the solution storage unit 13 through a third pipeline 203; the test liquid buffer 7 is internally provided with a timing control assembly, the test liquid buffer 7 is used for storing test liquid in the test process, and the timing control assembly is used for starting and stopping a timing device so as to obtain time parameters. The time parameter refers to the time length required for the test solution to reach a certain mass or volume in the buffer. The first pipeline 201 is communicated with the third pipeline 203 through a second pipeline 202, a pressure measuring unit 8 and a pressure adjusting unit 9 are arranged on the second pipeline 202, the pressure measuring unit 8 is used for testing the pressure of liquid in the second pipeline, and the pressure adjusting unit 9 is used for testing the pressure of liquid in the second pipeline; and a control valve 10 is arranged on a third pipeline between the second pipeline and a third pipeline connecting port and the liquid storage unit, the timing control assembly, the control valve 10 and the pressure measurement unit 8 are all connected with the control and display unit 4, and the control and display unit is used for controlling the control valve 10, calculating the flow and displaying the calculation result and the received pressure information. The control and display unit includes: the controller is used for receiving the data of the pressure measuring unit and displaying the data through the display, and the controller also receives the information of the timing control assembly and acquires time parameters. The model of the controller is as follows: QWT/24 MA; the model of the display is: QWY/6070.
In one embodiment, the unit under test includes a pump under test or a pipe under test. The pump to be measured can be a pump body such as a water pump, a flow pump and the like. One end of the pump to be tested is connected with the liquid storage device and is contacted with the test liquid, and the test liquid is pumped into the test liquid buffer 7 or the liquid storage unit. The pump to be tested is connected to the first pipe 201 through the test inlet 1.
In one embodiment, the reservoir unit includes a reservoir body. The liquid storage tank body is used for storing test liquid.
In one embodiment, the pressure damping unit includes a pulsation damper. The pulsation damper can effectively relieve the action of pressure and prevent pressure fluctuation.
In one embodiment, the timing control assembly includes a low level sensor 6 and a high level sensor 5. The timing is started when the testing liquid reaches the low liquid level sensor (when the low liquid level sensor starts to detect the testing liquid, the information is transmitted to the controller, the timing module in the controller starts to time, when the high liquid level sensor starts to detect the testing liquid, the timing module stops timing, and at the moment, the time recorded by the timing module is the time parameter). Because the volume or the mass of the test liquid between the low liquid level sensor 6 and the high liquid level sensor 5 is constant, the controller calculates the flow value according to the time parameter and the known volume or mass of the test liquid. The calculation formula is as follows: the volume or mass of the test fluid is divided by the time parameter.
In one embodiment, the control valve is a normally open solenoid valve. Normally open solenoid valve is controlled by the controller, when the controller received the test start instruction (during manual test key signal promptly), normally open solenoid valve circular telegram, normally open solenoid valve closed this moment, test solution begins to flow toward test solution buffer 7, when high level sensor detected test solution information, the test process ends, this moment, controller control normally open solenoid valve is in the outage state, normally open solenoid valve opens this moment, test solution begins to flow toward the liquid storage tank body via normally open solenoid valve and test egress opening 11. The test flow outlet 11 is arranged between the liquid storage tank body and the normally open electromagnetic valve. The normally open solenoid valve is arranged on the third pipeline.
In one embodiment, the pressure measurement unit comprises a pressure sensor. The pressure sensor is used for acquiring the pressure value of the test liquid in the second pipeline.
In a certain embodiment, the pressure adjustment unit comprises a backpressure valve. The backpressure valve is used for adjusting the pressure of the test liquid in the second pipeline.
In one embodiment, the control and display unit is provided with a manual test key. When flow detection is needed, a test process is started through a manual test key.
The utility model discloses mainly be applicable to flow at the water pump below 10000L/H, measuring pump and various liquid flow at the flow test of 10000L/H pipeline.
The utility model provides a technical scheme's concrete working process does: the front end (defined according to the flowing direction of the test liquid) of the pulsation damper is connected with a first pipeline 201, the front end of the first pipeline 201 is connected with a test access port 1, and the test access port 1 can be connected with a tested pump and is used for testing the real-time flow of a unit to be tested; the test inlet 1 can also be connected with the inlet of the tested liquid pipeline, and the test liquid outlet 11 is connected with the outlet of the tested liquid pipeline and used for testing the real-time flow of the pipeline. The rear end of the pulsation damper is connected with a second pipeline 202, a pressure sensor and a backpressure valve are sequentially arranged on the second pipeline 202, the other end of the second pipeline 202 is connected with a third pipeline 203 below a test liquid buffer 7, the test liquid buffer 7 is connected with the third pipeline 203, and the other end of the third pipeline 203 is connected with a normally open solenoid valve; the normally open electromagnetic valve is controlled by the control and display unit to be in an open-close state; the back pressure valve is used for adjusting the required pressure in the test pipeline; a low liquid level sensor and a high liquid level sensor are arranged on the test liquid buffer; the liquid level sensors 5 and 6 are used for sensing liquid level; the output signal ends of the liquid level sensors 5 and 6 and the pressure sensor are connected with a control and display module unit through leads, and the control and display unit is used for displaying and storing real-time pressure and flow to be measured.
By adopting the technical scheme: adjusting the back pressure valve to the required testing pressure, pressing a manual testing button on the control and display unit, starting a testing program, starting a flow test, closing the normally open electromagnetic valve at the moment, enabling the tested liquid to sequentially flow through the first pipeline 201, the second pipeline 202, the third pipeline 203 and the testing liquid buffer, opening the normally open electromagnetic valve when the testing liquid reaches the high liquid level sensor 5, and displaying and memorizing the flow testing value on the control and display unit through the internal program operation of the control and display unit. Meanwhile, the tested liquid flows into the liquid storage tank body through the first pipeline 201, the second pipeline 202, the third pipeline 203, the normally open electromagnetic valve, the third pipeline 203, the testing liquid outlet 11 and the third pipeline 203 in sequence; the test liquid in the test liquid buffer also flows into the water tank (12) along the third pipeline 203 and the normally open solenoid valve 10. At this time, when the test liquid flows through the low liquid level sensor 6, the test program is reset to wait for the start of the next test. If the device is switched to an automatic state, the device can repeat the process, realize automatic repeated testing and realize the function of monitoring the flow in real time.
Compared with the prior art, the device has the advantages of simple structure, easy preparation, low cost and simple maintenance, can realize full-automatic real-time measurement of the flow of liquid conveying equipment such as water pumps, metering pumps, pipelines and the like, and has high precision of the test result (the precision can reach 0.01 ml/min).
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A flow test device, comprising: the device comprises a unit to be tested, a pressure buffering unit and a testing liquid buffer, wherein the unit to be tested is connected with the pressure buffering unit through a first pipeline; the test liquid buffer is connected with the liquid storage unit through a third pipeline; the test liquid buffer is internally provided with a timing control assembly, the first pipeline is communicated with the third pipeline through a second pipeline, the second pipeline is provided with a pressure measurement unit and a pressure regulation unit, a control valve is arranged on the third pipeline between a connector of the second pipeline and the third pipeline and a liquid storage unit, the timing control assembly, the control valve and the pressure measurement unit are all connected with a control and display unit, and the control and display unit is used for controlling the control valve, calculating the flow and displaying the calculation result and the received pressure information.
2. A flow testing device according to claim 1, wherein said unit under test comprises a pump under test or a pipe under test.
3. A flow testing device according to claim 1, wherein the reservoir unit comprises a reservoir body.
4. A flow testing device according to claim 1, wherein said pressure buffer unit comprises a pulsation damper.
5. The flow testing apparatus of claim 1, wherein the timing control assembly comprises a low level sensor and a high level sensor.
6. A flow testing device according to claim 1 wherein said control valve is a normally open solenoid valve.
7. A flow testing device according to claim 1, wherein said pressure measuring unit comprises a pressure sensor.
8. A flow testing device according to claim 1, wherein said pressure regulating unit comprises a back pressure valve.
9. A flow rate measuring device according to claim 1, wherein the control and display unit is provided with a manual test button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921874743.6U CN210689730U (en) | 2019-11-01 | 2019-11-01 | Flow testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921874743.6U CN210689730U (en) | 2019-11-01 | 2019-11-01 | Flow testing device |
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| Publication Number | Publication Date |
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| CN210689730U true CN210689730U (en) | 2020-06-05 |
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| CN201921874743.6U Active CN210689730U (en) | 2019-11-01 | 2019-11-01 | Flow testing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112558647A (en) * | 2020-12-30 | 2021-03-26 | 江苏绿港现代农业发展股份有限公司 | Intelligent fluid measurement and control device and method |
| CN112857854A (en) * | 2021-03-02 | 2021-05-28 | 深圳远荣智能制造股份有限公司 | Automatic detect atomizer spraying flow and life's equipment |
-
2019
- 2019-11-01 CN CN201921874743.6U patent/CN210689730U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112558647A (en) * | 2020-12-30 | 2021-03-26 | 江苏绿港现代农业发展股份有限公司 | Intelligent fluid measurement and control device and method |
| CN112558647B (en) * | 2020-12-30 | 2023-04-28 | 江苏绿港现代农业发展股份有限公司 | Fluid intelligent measurement and control device and measurement and control method |
| CN112857854A (en) * | 2021-03-02 | 2021-05-28 | 深圳远荣智能制造股份有限公司 | Automatic detect atomizer spraying flow and life's equipment |
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