Multifunctional mass flow meter calibration device

Abstract

The invention belongs to the technical field of mass flow meter calibration, and particularly relates to a multifunctional mass flow meter calibration device. A first connector and a second connector are connected in parallel through a pipeline, the pipeline connected in parallel is connected with a second pipeline, a flow meter is arranged on the second pipeline, the flow meter is connected with a bypass pipeline in parallel, the other end of the second pipeline is connected with a third pipeline, and the other end of the third pipeline is connected with a first tee joint. The other two ways of the first tee joint are connected with a fourth connector and a fifth connector through pipelines respectively, the other end of the second pipeline is connected with a second tee joint, and the other two ways of the second tee joint are connected with a first material collecting device and a third connector through pipelines respectively. The flow meter calibration device can realize calibration work of a flow meter suitable for radioactive and corrosive gas mass flow measurement, can carry a mass flow meter, realizes calibration of a tubular mass flow meter, and simultaneously has the functions of quantitative sampling, quantitative material receiving, quantitative material pouring, flow meter calibration and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of mass flow meter calibration, and in particular relates to a multifunctional mass flow meter calibration device. Background Art

[0002] A mass flow meter is a flow measuring instrument for measuring the mass flow in a pipeline. In the prior art, there is no disclosure regarding the calibration of a flow meter suitable for measuring the mass flow of radioactive and corrosive gases. Summary of the invention

[0003] The technical problem solved by the present invention is: to provide a multifunctional mass flowmeter calibration device, which can realize the calibration of flowmeters suitable for measuring the mass flow of radioactive and corrosive gases, can carry mass flowmeters with a pipe diameter of DN65-DN400, realize the calibration of tubular mass flowmeters with a pipe diameter of DN65-DN400, and has the functions of quantitative sampling, quantitative material collection, quantitative material discharge, flowmeter calibration, etc.

[0004] The technical solution adopted by the present invention is:

[0005] A multifunctional mass flowmeter calibration device comprises a first interface, a first flowmeter, an eighth valve, a first material receiving device, a second interface, a third interface, a fourth interface, and a fifth interface, wherein the first interface and the second interface are connected in parallel via a pipeline, and the parallel pipeline is connected to the second pipeline, the second pipeline is provided with a flowmeter, the flowmeter is connected in parallel with a bypass pipeline, the other end of the second pipeline is connected to a third pipeline, the third pipeline is provided with an eighth valve, the other end of the eighth valve is connected to a first tee, the other two ends of the first tee are respectively connected to the fourth interface and the fifth interface via pipelines, the other end of the second pipeline is connected to a second tee, and the other two ends of the second tee are respectively connected to the first material receiving device and the third interface via pipelines.

[0006] The pipeline of the first interface is provided with a first valve and a second valve, and the pipeline of the second interface is provided with a third valve and a fourth valve.

[0007] The flow meter is provided with a fifth valve and a seventh valve at both ends.

[0008] The bypass pipeline is provided with a sixth valve.

[0009] The second pipeline is provided with a first pressure gauge and a first thermometer, which are located on one side of the flow meter, and a second thermometer and a second pressure gauge, which are located on the other side of the flow meter.

[0010] A ninth valve is arranged on the pipeline of the fourth interface, and a tenth valve is arranged on the pipeline of the fifth interface.

[0011] An eleventh valve and a twelfth valve are arranged on the pipeline of the first material receiving device, and a thirteenth valve and a fourteenth valve are arranged on the pipeline of the third interface.

[0012] The first interface is a purge interface connected by a flange and used to connect a purge device; the second interface is a working gas inlet connected by a flange and connected to a raw material device that provides working gas; the third interface is a backwash interface connected by a flange and connected to a vacuum device to provide a vacuum environment for the calibration device; the fourth interface is a sampling interface connected by a flange and used to connect a sampling device to achieve quantitative sampling; the fifth interface is a reserved interface connected by a flange and used to connect temporary test equipment.

[0013] The first interface is connected to the purge and evacuation device, the second interface is connected to the raw material device, the first material receiving device is connected to the purification device, and a numerical control platform is also provided.

[0014] The numerical control platform and the calibration device are integrated together in a movable trolley. The numerical control platform realizes the switch control of the electric valve of the calibration device, and the collection and analysis of temperature, pressure, flow and total amount parameters.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a multifunctional mass flow meter calibration device, which is suitable for radioactive and corrosive gases. The calibration device can be used to calibrate mass flow meters with a pipe diameter of DN65-DN400. Different devices can be connected to different interfaces of the calibration device to achieve functions such as quantitative sampling, quantitative material collection, and quantitative material discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a multifunctional mass flow meter calibration device provided by the present invention;

[0018] Figure 2 Schematic diagram of the connection between the calibration device and other devices;

[0019] In the figure: 1 first interface, 2 first valve, 3 second valve, 4 first pressure gauge, 5 first thermometer, 6 first flow meter, 7 first material receiving device, 8 second interface, 9 third interface, 10 fourth interface, 11 fifth interface, 21 third valve, 22 fifth valve, 23 sixth valve, 24 seventh valve, 25 eighth valve, 26 ninth valve, 27 twelfth valve, 28 fourteenth valve, 31 fourth valve, 32 tenth valve, 33 eleventh valve, 34 thirteenth valve, 41 second pressure gauge, 51 second thermometer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1As shown, a multifunctional mass flowmeter calibration device provided by the present invention includes a first interface 1, a first valve 2, a second valve 3, a third valve 21, a fourth valve 31, a first pressure gauge 4, a first thermometer 5, a fifth valve 22, a sixth valve 23, a first flowmeter 6, a seventh valve 24, a second thermometer 51, a second pressure gauge 41, an eighth valve 25, a ninth valve 26, a tenth valve 32, an eleventh valve 33, a twelfth valve 27, a thirteenth valve 34, a fourteenth valve 28, a first material receiving device 7, a second interface 8, a third interface 9, a fourth interface 10, and a fifth interface 11. The first interface 1 is connected in parallel with the second interface 8 through a pipeline, the pipeline of the first interface 1 is provided with a first valve 2 and a second valve 3, and the pipeline of the second interface 8 is provided with a third valve 21 and a fourth valve 31; the parallel pipeline is connected to the second pipeline, the second pipeline is provided with a flowmeter 6, and the fifth valve 22 and the seventh valve 24 are provided at both ends of the flowmeter 6, and the flowmeter 6 is connected to the second pipeline. The flow meter 6 is connected in parallel with a bypass pipeline, on which a sixth valve 23 is provided; the second pipeline is provided with a first pressure gauge 4 and a first thermometer 5, which are located on one side of the flow meter 6, and a second thermometer 51 and a second pressure gauge 41 are provided, which are located on the other side of the flow meter 6; the other end of the second pipeline is connected to the third pipeline, on which an eighth valve 25 is provided, and the other end of the eighth valve 25 is connected to the first tee, and the other two of the first tee are respectively connected to the fourth interface 10 and the fifth interface 11 through pipelines, the pipeline of the fourth interface 10 is provided with a ninth valve 26, and the pipeline of the fifth interface 11 is provided with a tenth valve 32; the other end of the second pipeline is connected to the second tee, and the other two of the second tee are respectively connected to the first material receiving device 7 and the third interface 9 through pipelines, the pipeline of the first material receiving device 7 is provided with an eleventh valve 33 and a twelfth valve 27, and the pipeline of the third interface 9 is provided with a thirteenth valve 34 and a fourteenth valve 28.

[0024] Figure 1In the embodiment, the first interface 1 is a purge interface and is connected by flanges, which is used to connect the purge device, so as to facilitate the purge work of the calibration device. The first valve 2 is a DN25 manual valve, which is used for effective cutoff of the pipeline. The first valve 3 is a DN25 electric valve, which is used for remote control of pipeline on and off. The first pressure gauge 4 is an absolute pressure gauge, which is used to monitor the working gas pressure in the pipeline. The first thermometer 5 is used to monitor the working gas temperature. The first flow meter 6 is a tubular flow meter, which is used to monitor the mass flow of the working gas, and the pipe diameter range of the flow meter 6 is DN65-DN400. The first material receiving device 7 is a low-temperature professional container, which is used to condense the working gas. The second interface 8 is used as the working gas inlet, which is connected by flanges and connected to the raw material device that provides the working gas. The third interface 9 is a backwash interface, which is connected by flanges and connected to the evacuation device to provide a vacuum environment for the calibration device. The fourth interface 10 is a sampling interface, which is connected by flanges and is used to connect the sampling device to achieve quantitative sampling. The fifth interface 11 is a reserved interface, which is connected by flange and is used to connect temporary test equipment, such as a vacuum pump, a pressure gauge, etc. The first pipeline 12 is used to connect various valves and instruments of the device to provide a closed path for the working gas.

[0025] like Figure 2 As shown, the mobile calibration platform is connected to the purge and evacuation device through the first interface 1, is connected to the raw material device through the second interface 8, and is connected to the purification device through the first material receiving device 7. Data between the mobile calibration platform and the CNC platform can be transmitted to each other.

[0026] The raw material device is connected to the inlet of the calibration device. The raw material device is provided with an electronic scale and can provide a stable fluid with a flow rate of 0g / s to 80g / s for the calibration device.

[0027] The collecting device is connected to the outlet of the calibration device, providing a -80°C low temperature environment, collecting the working material by condensation, and separating non-condensable gases such as HF and air.

[0028] The purification device is connected to the outlet of the material receiving device. When the content of non-condensable gas in the material receiving device increases, the purification device is used to purify the material receiving device to ensure smooth flow of fluid in the calibration device.

[0029] The purge and evacuation device is connected to the purge interface of the receiving device, and is mainly used for evacuating and leak detection of the calibration device pipeline and for purge and deep evacuation of the calibration device when replacing flow meters with different pipe diameters.

[0030] The CNC platform and the calibration device are integrated together in a movable trolley. The CNC platform can realize the switch control of the electric valve of the calibration device, and the collection and analysis of parameters such as temperature, pressure, flow, and total amount.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multifunctional mass flow meter calibration device, characterized in that: The invention comprises a first interface (1), a first flow meter (6), an eighth valve (25), a first material receiving device (7), a second interface (8), a third interface (9), a fourth interface (10), and a fifth interface (11); the first interface (1) and the second interface (8) are connected in parallel via a pipeline, and the parallel pipeline is connected to the second pipeline; the second pipeline is provided with a flow meter (6), and the flow meter (6) is connected in parallel with a bypass pipeline; the other end of the second pipeline is connected to the third pipeline; the third pipeline is provided with an eighth valve (25); the other end of the eighth valve (25) is connected to a first tee; the other two ends of the first tee are respectively connected to the fourth interface (10) and the fifth interface (11) via pipelines; the other end of the second pipeline is connected to a second tee; the other two ends of the second tee are respectively connected to the first material receiving device (7) and the third interface (9) via pipelines.

2. The multifunctional mass flow meter calibration device according to claim 1, characterized in that: A first valve (2) and a second valve (3) are provided on the pipeline of the first interface (1), and a third valve (21) and a fourth valve (31) are provided on the pipeline of the second interface (8).

3. The multifunctional mass flow meter calibration device according to claim 1, characterized in that: A fifth valve (22) and a seventh valve (24) are provided at both ends of the flow meter (6).

4. The multifunctional mass flow meter calibration device according to claim 1, characterized in that: The bypass pipeline is provided with a sixth valve (23).

5. The multifunctional mass flow meter calibration device according to claim 1, characterized in that: The second pipeline is provided with a first pressure gauge (4) and a first thermometer (5), which are located on one side of the flow meter (6), and a second thermometer (51) and a second pressure gauge (41), which are located on the other side of the flow meter (6).

6. The multifunctional mass flow meter calibration device according to claim 1, characterized in that: A ninth valve (26) is provided on the pipeline of the fourth interface (10), and a tenth valve (32) is provided on the pipeline of the fifth interface (11).

7. The multifunctional mass flow meter calibration device according to claim 1, characterized in that: An eleventh valve (33) and a twelfth valve (27) are provided on the pipeline of the first material receiving device (7), and a thirteenth valve (34) and a fourteenth valve (28) are provided on the pipeline of the third interface (9).

8. The multifunctional mass flow meter calibration device according to claim 1, characterized in that: The first interface (1) is a purge interface, which is connected by a flange and is used to connect a purge device; the second interface (8) is a working gas inlet, which is connected by a flange and is connected to a raw material device that provides working gas; the third interface (9) is a backwash interface, which is connected by a flange and is connected to a vacuum device to provide a vacuum environment for a calibration device; the fourth interface (10) is a sampling interface, which is connected by a flange and is used to connect a sampling device to achieve quantitative sampling; the fifth interface (11) is a reserved interface, which is connected by a flange and is used to connect temporary test equipment.

9. The multifunctional mass flow meter calibration device according to claim 8, characterized in that: The first interface (1) is connected to the purge and evacuation device, the second interface (8) is connected to the raw material device, the first material receiving device (7) is connected to the purification device, and a numerical control platform is also provided.

10. The multifunctional mass flow meter calibration device according to claim 9, characterized in that: The numerical control platform and the calibration device are integrated together in a movable trolley. The numerical control platform realizes the switch control of the electric valve of the calibration device, and the collection and analysis of temperature, pressure, flow and total amount parameters.

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