Mass flowmeter system with online checking and metering functions and pipeline system

Abstract

The utility model provides a mass flowmeter system with online checking and metering functions and a pipeline system. A mass flowmeter system with online verification and metering is characterized in that one end of a first pipeline and one end of a second pipeline are both connected with an input pipeline, the other end of the first pipeline and the other end of the second pipeline are both connected with an output pipeline, and a first mass flowmeter, a first inlet gate valve and a first outlet gate valve are all installed on the first pipeline; the first mass flow meter is located between the first inlet gate valve and the first outlet gate valve, the second mass flow meter, the second inlet gate valve and the second outlet gate valve are all installed on the second pipeline, and the second mass flow meter is located between the second inlet gate valve and the second outlet gate valve. The two ends of the verification pipeline are connected with the first pipeline and the second pipeline in a one-to-one correspondence mode, and the ball valve is installed on the verification pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline throughput metering equipment technical field especially, relates to a kind of mass flowmeter system and pipeline system with on-line calibration and measurement. BACKGROUND

[0002] Long-distance product oil pipeline mainly includes line, first station, intermediate download station, intermediate pump station and end station. The uploading and downloading process is mainly composed of pipe sections, valves, mass flow meters, various instruments and oil tanks.

[0003] Long-distance product oil pipeline often has a length of several hundred kilometers. In long-distance product oil pipeline, the product oil is sent by boosting to about 4.0-8.0 Mpa using high-power oil pumps, and multiple intermediate download stations are connected on the conveying pipeline. The product oil is sent into the oil tanks in the intermediate download stations. However, when uploading at the first station, downloading at the intermediate download station and the end station, the product oil needs to be measured. The oil tank at the first station is connected to the flow meter, and the long-distance pump is pressurized for external transmission. The download station generally enters the oil tank after being measured by the mass flow meter. During the measurement process, the oil depot may feel that one of the mass flow meters is more accurate, and the reading of the other mass flow meter is not accurate, which may cause economic conflicts between the uploading oil company and the downloading oil depot company. SUMMARY

[0004] The utility model solves the technical problem of the prior art and provides a mass flowmeter system and pipeline system with on-line calibration and measurement.

[0005] The utility model solves the above technical problem by the following technical scheme: a mass flowmeter system with on-line calibration and measurement includes an input pipeline, an output pipeline, a first pipeline, a second pipeline, a first inlet gate valve, a second inlet gate valve, a first outlet gate valve, a second outlet gate valve, a first mass flowmeter, a second mass flowmeter, a calibration pipeline and a ball valve. One end of the first pipeline and one end of the second pipeline are connected to the input pipeline. The other end of the first pipeline and the other end of the second pipeline are connected to the output pipeline. The first mass flowmeter, the first inlet gate valve and the first outlet gate valve are installed on the first pipeline. The first mass flowmeter is located between the first inlet gate valve and the first outlet gate valve. The second mass flowmeter, the second inlet gate valve and the second outlet gate valve are installed on the second pipeline. The second mass flowmeter is located between the second inlet gate valve and the second outlet gate valve. The two ends of the calibration pipeline are connected to the first pipeline and the second pipeline respectively. The ball valve is installed on the calibration pipeline.

[0006] The beneficial effect of the technical scheme of the utility model is: simple structure, convenient to use, convenient to check the mass flow meter on line when uploading and downloading oil products, timely understanding of the accuracy of the mass flow meter, reducing stress error caused by offline calibration and disassembly, ensuring more standard oil product handover, avoiding unnecessary contradictions and reducing unnecessary repeated offline calibration.

[0007] Further, one end of the check pipeline is connected with the first pipeline between the first inlet gate valve and the first mass flow meter, and the other end of the check pipeline is connected with the second pipeline between the second outlet gate valve and the second mass flow meter.

[0008] The beneficial effect of the above further technical scheme is: when checking on line, the first inlet gate valve is closed, the second outlet gate valve is closed, thus forming a series mode, and the two mass flow meters are compared and checked: if the readings of the two mass flow meters are consistent, it indicates that the two mass flow meters are accurate; if the readings of the two mass flow meters are inconsistent, it indicates that at least one mass flow meter has an error and needs to be calibrated offline, and finally it is determined which mass flow meter has better performance and is determined as the main mass flow meter.

[0009] Further, one end of the check pipeline is connected with the first pipeline between the first outlet gate valve and the first mass flow meter, and the other end of the check pipeline is connected with the second pipeline between the second inlet gate valve and the second mass flow meter.

[0010] The beneficial effect of the above further technical scheme is: when checking on line, the first outlet gate valve is closed, the second inlet gate valve is closed, thus forming a series mode, and the two mass flow meters are compared and checked: if the readings of the two mass flow meters are consistent, it indicates that the two mass flow meters are accurate; if the readings of the two mass flow meters are inconsistent, it indicates that at least one mass flow meter has an error and needs to be calibrated offline, and finally it is determined which mass flow meter has better performance and is determined as the main mass flow meter.

[0011] Further, the first inlet gate valve, the second inlet gate valve, the first outlet gate valve and the second outlet gate valve are all electric valves.

[0012] The beneficial effect of the above further technical scheme is: convenient to automatically open and close the gate valve and automatically realize the on-line checking function.

[0013] Furthermore, the utility model also provides a kind of pipeline system, including two above-mentioned any one described a kind of mass flowmeter system with online check and measurement, still include: oil pump, online densimeter and oil tank, the oil pump is connected with a mass flowmeter system with online check and measurement by pipeline, a mass flowmeter system with online check and measurement is connected with the online densimeter by pipeline, the online densimeter is connected with another mass flowmeter system with online check and measurement by pipeline, another mass flowmeter system with online check and measurement is connected with the oil tank by pipeline.

[0014] The beneficial effects of the technical scheme of the utility model are: simple structure, convenient to use, when uploading and downloading oil products, the mass flowmeter can be conveniently checked online, the accuracy of the mass flowmeter can be understood in time, stress errors caused by offline calibration and disassembly are reduced, oil product handover is more standard, unnecessary contradictions are avoided, unnecessary repeated offline calibration is reduced, the mass flowmeter can be checked online and selected according to needs, and the running condition of the mass flowmeter can be understood in the first time.

[0015] Further, the oil pump is connected with a first electric gate valve by pipeline, a first filter and a second electric gate valve are installed on the pipeline between the first electric gate valve and the oil pump.

[0016] The beneficial effects of the above further technical scheme are: the electric gate valve is arranged to facilitate automatic opening and closing of the gate valve, and the filter is arranged to filter impurities and improve the stability and reliability of the pipeline system.

[0017] Further, a pressure sensor and a one-way valve are installed on the pipeline between the oil pump and the mass flowmeter system with online check and measurement, a third electric gate valve is installed on the pipeline between the one-way valve and the oil pump.

[0018] The beneficial effects of the above further technical scheme are: the pressure sensor is used to monitor the pipeline pressure, the one-way valve is used to transmit the medium in the pipeline in one direction to prevent backflow of the medium in the pipeline, and the electric gate valve is arranged to facilitate automatic opening and closing of the gate valve.

[0019] Further, a first regulating valve is installed on the pipeline between the mass flowmeter system with online check and measurement and the online densimeter.

[0020] The beneficial effects of the above further technical scheme are: the online densimeter is used to continuously measure the concentration and density of the medium in the pipeline, and the regulating valve is used to regulate the flow and flow rate of the medium in the pipeline.

[0021] Further, a fourth electric gate valve, a second filter and a second regulating valve are installed on the pipeline between the online density meter and another mass flow meter system provided with online calibration and metering.

[0022] The beneficial effects of the above further technical solutions are that the electric gate valve is provided to facilitate automatic opening and closing of the gate valve, and the regulating valve is used to adjust the medium flow and flow rate in the pipeline.

[0023] Further, a third pipeline is connected between the online density meter and another mass flow meter system provided with online calibration and metering, a fifth electric gate valve and a third regulating valve are installed on the third pipeline, and the third pipeline is connected to a next downloading station.

[0024] The beneficial effects of the above further technical solutions are that the electric gate valve is provided to facilitate automatic opening and closing of the gate valve, and the regulating valve is used to adjust the medium flow and flow rate in the pipeline.

[0025] The advantages of the additional aspects of the present application will be partially given in the following description, some will become apparent from the following description, or will be understood by those skilled in the art through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure schematic view of the mass flow meter system provided with online calibration and metering is provided for the embodiments of the present application.

[0027] Figure 2 The structure schematic view of the mass flow meter system provided with online calibration and metering is provided for the embodiments of the present application.

[0028] The input pipeline, the output pipeline, the first pipeline, the second pipeline, the first inlet gate valve, the second inlet gate valve, the first outlet gate valve, the second outlet gate valve, the first mass flow meter, the second mass flow meter, the calibration pipeline, the ball valve, the oil pump, the online density meter, the oil tank, the first electric gate valve, the first filter, the second electric gate valve, the pressure sensor, the one-way valve, the third electric gate valve, the first regulating valve, the fourth electric gate valve, the second filter, the second regulating valve, the third pipeline, the fifth electric gate valve, the third regulating valve and the next downloading station are explained in the description of the embodiments of the present application. DETAILED DESCRIPTION

[0029] The principles and characteristics of the present application are described below in combination with the drawings, and the embodiments are only used to explain the present application and are not used to limit the scope of the present application.

[0030] AsFigure 1 And Figure 2 As shown in the utility model embodiment provides a kind of quality flowmeter system with online check and measurement, it include: input pipeline 1, output pipeline 2, first pipeline 3, second pipeline 4, first inlet gate valve 5, second inlet gate valve 6, first outlet gate valve 7, second outlet gate valve 8, first mass flowmeter 9, second mass flowmeter 10, check pipeline 11, ball valve 12, one end of the first pipeline 3 And one end of the second pipeline 4 are connected with the input pipeline 1, another end of the first pipeline 3 And another end of the second pipeline 4 are connected with the output pipeline 2, the first mass flowmeter 9, the first inlet gate valve 5 And the first outlet gate valve 7 are all installed on the first pipeline 3, the first mass flowmeter 9 is located between the first inlet gate valve 5 and the first outlet gate valve 7, the second mass flowmeter 10, the second inlet gate valve 6 And the second outlet gate valve 8 are all installed on the second pipeline 4, the second mass flowmeter 10 is located between the second inlet gate valve 6 and the second outlet gate valve 8, both ends of the check pipeline 11 are connected with the first pipeline 3 And the second pipeline 4 one by one, the ball valve 12 is installed on the check pipeline 11.

[0031] The beneficial effects of the technical scheme of the utility model are: simple structure, convenient to use, when uploading and downloading oil products, the mass flowmeter can be conveniently checked online, and the accuracy of the mass flowmeter can be understood in time, while the stress error caused by offline calibration and disassembly is reduced, ensuring that the oil product handover is more standard. Avoid unnecessary conflicts and reduce unnecessary repeated offline calibration. The mass flowmeter can be checked online as needed, and the running status of the mass flowmeter can be understood in the first time.

[0032] As shown in the utility model embodiment, Figure 1 And Figure 2 Further, one end of the check pipeline 11 is connected with the first pipeline 3 between the first inlet gate valve 5 and the first mass flowmeter 9, and the other end of the check pipeline 11 is connected with the second pipeline 4 between the second outlet gate valve 8 and the second mass flowmeter 10.

[0033] The beneficial effects of the above further technical scheme are: when online checking, the first inlet gate valve is closed, and the second outlet gate valve is closed, so that a series mode is formed, and the two mass flowmeters are compared and checked: if the readings of the two mass flowmeters are consistent, it means that the two mass flowmeters are accurate; if the readings of the two mass flowmeters are inconsistent, it means that at least one mass flowmeter has an error and needs to be calibrated offline, and finally determine which mass flowmeter has better performance and determine the main mass flowmeter.

[0034] As shown in the utility model embodiment, Figure 1 AndFigure 2 As shown in the further, one end of the check pipeline 11 is connected with the first pipeline 3 between the first outlet gate valve 7 and the first mass flow meter 9, and the other end of the check pipeline 11 is connected with the second pipeline 4 between the second inlet gate valve 6 and the second mass flow meter 10.

[0035] The beneficial effect of the above further technical solution is that when online checking, the first outlet gate valve is closed, and the second inlet gate valve is closed, so that a series mode is formed, and the two mass flow meters are compared and checked: if the readings of the two mass flow meters are consistent, it means that the two mass flow meters are accurate; if the readings of the two mass flow meters are inconsistent, it means that at least one mass flow meter has an error, and needs to be calibrated offline, and finally it is determined which mass flow meter has better performance and is determined as the main mass flow meter.

[0036] As shown in the further, the first inlet gate valve 5, the second inlet gate valve 6, the first outlet gate valve 7 and the second outlet gate valve 8 are all electric valves. Figure 1 and Figure 2 As shown in the further, the first inlet gate valve 5, the second inlet gate valve 6, the first outlet gate valve 7 and the second outlet gate valve 8 are all electric valves.

[0037] The beneficial effect of the above further technical solution is that it is convenient to automatically open and close the gate valve, and to automatically realize the online checking function.

[0038] In the currently used mass flow meter system, the LL-1 and LL-2 mass flow meters (first mass flow meter and second mass flow meter) are connected in parallel and metered separately. Due to the reasons such as inherent error, downloaded flow deviating from the mass flow meter applicable flow range, etc., it is easy to cause the accuracy of the two mass flow meters to be different when downloading, and it is easy to cause contradictions in the production process, and increase the offline checking workload. At the same time, during the installation process after the mass flow meter calibration, there is a stress installation, which will inevitably cause inaccurate metering, and in the later period, a large amount of time and manpower needs to be invested for tank metering, and the workload of employees is increased.

[0039] When online checking, the first inlet gate valve is closed, and the second outlet gate valve is closed, or a ball valve is installed in the pipeline (check pipeline 11) at the outlet end of the LL-1 mass flow meter (first mass flow meter 9) to connect to the inlet end of the LL-2 mass flow meter (second mass flow meter 10). When online checking, the inlet gate valve (second inlet gate valve 6) of the LL-2 mass flow meter (second mass flow meter 10) is closed, and the outlet gate valve (first outlet gate valve) of the LL-1 mass flow meter (first mass flow meter 9) is closed.

[0040] In this way, a series mode is formed to compare and check the two mass flow meters: (1) based on the annual offline calibration of the mass flow meter, after calibration and installation, if the readings of the two mass flow meters are consistent, it indicates that the two mass flow meters are accurate; (2) if the readings of the two mass flow meters are inconsistent, it indicates that at least one of the mass flow meters has an error and needs to be calibrated offline, and finally determine which mass flow meter has better performance and determine the main mass flow meter; (3) in order to avoid unnecessary contradictions, the online calibration function is added to perform online calibration every month to understand the operation of the mass flow meter in the first time.

[0041] As shown in Figure 1 and Figure 2 Further, the utility model also provides a pipeline system, including two above-mentioned any one kind of quality flow meter system with online calibration and measurement, still include: oil pump 13, online density meter 14 and oil tank 15, oil pump 13 is connected with a quality flow meter system with online calibration and measurement through pipeline, a quality flow meter system with online calibration and measurement is connected with online density meter 14 through pipeline, online density meter 14 is connected with another quality flow meter system with online calibration and measurement through pipeline, another quality flow meter system with online calibration and measurement is connected with oil tank 15 through pipeline.

[0042] The beneficial effects of the technical scheme of the utility model are: simple structure, convenient to use, when uploading and downloading oil products, the mass flow meter can be conveniently checked online, the accuracy of the mass flow meter can be understood in time, stress errors caused by offline calibration and disassembly are reduced, oil product transfer is more standardized, unnecessary contradictions are avoided, unnecessary repeated offline calibration is reduced, online calibration can be performed according to needs, accurate flow meters are selected, and the operation of the mass flow meter can be understood in the first time.

[0043] As shown in Figure 1 and Figure 2 Further, the oil pump 13 is connected with a first electric gate valve 16 through a pipeline, a first filter 17 and a second electric gate valve 18 are installed on the pipeline between the first electric gate valve 16 and the oil pump 13.

[0044] The beneficial effects of the above-mentioned further technical scheme are: the electric gate valve is provided to facilitate automatic opening and closing of the gate valve, and the filter is provided to filter impurities and improve the stability and reliability of the pipeline system.

[0045] As shown in Figure 1 and Figure 2As shown in

[0046] The beneficial effects of the above further technical solutions are: the pressure sensor is used for monitoring the pipeline pressure. The check valve is used for one-way transmission of the medium in the pipeline, preventing the medium in the pipeline from flowing back. The electric gate valve is set to facilitate automatic opening and closing of the gate valve.

[0047] As shown in Figure 1 and Figure 2 Further, a first regulating valve 22 is installed on the pipeline between the online density meter 14 and another mass flow meter system provided with online verification and metering.

[0048] The beneficial effects of the above further technical solutions are: the online density meter is used for continuous online measurement of the concentration and density of the medium in the pipeline. The regulating valve is used for regulating the flow and flow rate of the medium in the pipeline.

[0049] As shown in Figure 1 and Figure 2 Further, a fourth electric gate valve 23, a second filter 24 and a second regulating valve 25 are installed on the pipeline between the online density meter 14 and another mass flow meter system provided with online verification and metering.

[0050] The beneficial effects of the above further technical solutions are: the electric gate valve is set to facilitate automatic opening and closing of the gate valve. The regulating valve is used for regulating the flow and flow rate of the medium in the pipeline.

[0051] As shown in Figure 1 and Figure 2 Further, a third pipeline 26 is connected between the online density meter 14 and another mass flow meter system provided with online verification and metering, a fifth electric gate valve 27 and a third regulating valve 28 are installed on the third pipeline 26, and the third pipeline 26 is connected to a next downloading station 29.

[0052] The beneficial effects of the above further technical solutions are: the electric gate valve is set to facilitate automatic opening and closing of the gate valve. The regulating valve is used for regulating the flow and flow rate of the medium in the pipeline.

[0053] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A mass flow meter system equipped with online calibration and measurement, characterized in that, include: The system includes an input pipeline, an output pipeline, a first pipeline, a second pipeline, a first inlet gate valve, a second inlet gate valve, a first outlet gate valve, a second outlet gate valve, a first mass flow meter, a second mass flow meter, a calibration pipeline, and a ball valve. One end of the first pipeline and one end of the second pipeline are connected to the input pipeline, and the other ends of the first pipeline and the second pipeline are connected to the output pipeline. The first mass flow meter, the first inlet gate valve, and the first outlet gate valve are all installed on the first pipeline, with the first mass flow meter located between the first inlet gate valve and the first outlet gate valve. The second mass flow meter, the second inlet gate valve, and the second outlet gate valve are all installed on the second pipeline, with the second mass flow meter located between the second inlet gate valve and the second outlet gate valve. Both ends of the calibration pipeline are connected to the first pipeline and the second pipeline respectively, and the ball valve is installed on the calibration pipeline.

2. A mass flow meter system with online calibration and measurement according to claim 1, characterized in that, One end of the calibration pipeline is connected to the first pipeline between the first inlet gate valve and the first mass flow meter, and the other end of the calibration pipeline is connected to the second pipeline between the second outlet gate valve and the second mass flow meter.

3. A mass flow meter system with online calibration and measurement according to claim 1, characterized in that, One end of the calibration pipeline is connected to the first pipeline between the first outlet gate valve and the first mass flow meter, and the other end of the calibration pipeline is connected to the second pipeline between the second inlet gate valve and the second mass flow meter.

4. A mass flow meter system with online calibration and measurement according to claim 1, characterized in that, The first inlet gate valve, the second inlet gate valve, the first outlet gate valve, and the second outlet gate valve are all electric valves.

5. A piping system, characterized in that, The system includes two mass flow meters with online calibration and measurement as described in any one of claims 1 to 4, and further includes: an oil pump, an online density meter, and an oil tank. The oil pump is connected to one mass flow meter system with online calibration and measurement via a pipeline. The mass flow meter system with online calibration and measurement is connected to the online density meter via a pipeline. The online density meter is connected to another mass flow meter system with online calibration and measurement via a pipeline. The other mass flow meter system with online calibration and measurement is connected to the oil tank via a pipeline.

6. A piping system according to claim 5, characterized in that, The oil pump is connected to a first electric gate valve via a pipeline, and a first filter and a second electric gate valve are installed on the pipeline between the first electric gate valve and the oil pump.

7. A piping system according to claim 5, characterized in that, A pressure sensor and a check valve are installed on the pipeline between the oil pump and a mass flow meter system equipped with online calibration and measurement. A third electric gate valve is installed on the pipeline between the check valve and the oil pump.

8. A piping system according to claim 5, characterized in that, A first regulating valve is installed on the pipeline between a mass flow meter system equipped with online calibration and measurement and the online density meter.

9. A piping system according to claim 5, characterized in that, A fourth electric gate valve, a second filter, and a second regulating valve are installed on the pipeline between the online density meter and another mass flow meter system equipped with online calibration and measurement.

10. A piping system according to claim 5, characterized in that, The pipeline connecting the online density meter and another mass flow meter system equipped with online calibration and measurement is connected by a third pipeline. A fifth electric gate valve and a third regulating valve are installed on the third pipeline. The third pipeline is connected to the next download station.

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