CN215296331U - Medium transmission pipe flow measuring device - Google Patents
Medium transmission pipe flow measuring device Download PDFInfo
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- CN215296331U CN215296331U CN202121975841.6U CN202121975841U CN215296331U CN 215296331 U CN215296331 U CN 215296331U CN 202121975841 U CN202121975841 U CN 202121975841U CN 215296331 U CN215296331 U CN 215296331U
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Abstract
The application relates to the technical field of flow test, in particular to a medium transmission pipe flow measuring device which comprises a first flowmeter and a flow measuring assembly, wherein the first flowmeter and the flow measuring assembly are connected to a medium transmission pipe in series, the flow measuring assembly comprises a first branch pipe connected to the medium transmission pipe and a second flowmeter connected to the first branch pipe, and the measuring ranges of the first flowmeter and the second flowmeter are different. The first flowmeter and the second flowmeter with different ranges are arranged on the medium transmission pipe, when the flow of the medium in the medium transmission pipe is large, the flowmeter with the large range is adopted for measurement, when the flow of the medium in the medium transmission pipe is small, the flowmeter with the small range is adopted for measurement, and the measurement accuracy of the medium flow in the pipeline is improved.
Description
Technical Field
The application relates to the technical field of flow test, in particular to a medium transmission pipe flow measuring device.
Background
At present, the medium is generally transported through a pipe. To measure the flow of the medium in the pipeline, a flow meter is usually provided on the pipeline. When the medium flow in the pipeline changes too much, a flowmeter with a large measuring range is generally adopted, and when the medium flow in the pipeline is small, the medium flow in the pipeline is measured inaccurately by the flowmeter due to the large measuring range of the flowmeter.
SUMMERY OF THE UTILITY MODEL
In order to improve the measurement accuracy of medium flow in a pipeline, the application provides a medium transmission pipe flow measuring device.
The technical scheme adopted by the flow measuring device for the medium transmission pipe is as follows:
a medium transmission pipe flow measuring device comprises a first flowmeter and a flow measuring assembly, wherein the first flowmeter and the flow measuring assembly are connected to a medium transmission pipe in series, the flow measuring assembly comprises a first branch pipe connected to the medium transmission pipe and a second flowmeter connected to the first branch pipe, and the first flowmeter and the second flowmeter are different in measuring range.
By adopting the technical scheme, the first flowmeter and the second flowmeter with different ranges are arranged on the medium transmission pipe, when the flow of the medium in the medium transmission pipe is large, the flowmeter with the large range is adopted for measurement, and when the flow of the medium in the medium transmission pipe is small, the flowmeter with the small range is adopted for measurement, so that the measurement accuracy of the medium flow in the pipeline is improved.
Optionally, the first flowmeter is located at the input end of the medium delivery pipe, and the range of the first flowmeter is larger than that of the second flowmeter, the flow measurement assembly further includes a second branch pipe connected in parallel to the first branch pipe, and a control valve arranged on the second branch pipe, the diameter of the first branch pipe is smaller than that of the medium delivery pipe, and the sum of the cross-sectional areas of the first branch pipe and the second branch pipe is not smaller than that of the medium delivery pipe.
By adopting the technical scheme, when the medium flow in the medium transmission pipe is large, the valve of the control valve is opened, the medium cannot be blocked at the flow measuring component, and the medium can flow out of the medium transmission pipe more smoothly; when the medium flow in the medium transmission pipe is small, the valve of the control valve is closed, so that the medium in the medium transmission pipe can only flow into the first branch pipe, the size of the pipe diameter is reduced, and the measurement precision of the second flowmeter is further improved.
Optionally, the flow measuring assemblies are arranged in a group, and a throttling valve is arranged on one side of the flow measuring assemblies, which is away from the input end of the medium conveying pipe.
By adopting the technical scheme, the throttling valve is arranged at the downstream of the throttling valve, the throttling hole can be adjusted by the throttling valve, and the proper throttling hole diameter is set according to different flow rates, so that no air suction is generated at the outlet of the flowmeter, and the measurement precision of the medium flow rate in the whole flow rate range is improved.
Optionally, the flow measuring assemblies are arranged in multiple groups, the multiple groups of flow measuring assemblies are arranged at intervals along the medium transmission pipe, the second flow meter ranges on each group of flow measuring assemblies are different, and a throttle valve is arranged at the downstream position of the medium transmission pipe on each group of flow measuring assemblies.
Through adopting above-mentioned technical scheme, set up the second flowmeter of the different range of multiunit for flow measurement subassembly is more accurate to the flow measurement in the medium transmission pipe.
Optionally, the first flowmeter is connected to the medium transmission pipe through a ferrule connector or a flange, and the second flowmeter is connected to the first branch pipe through a ferrule connector or a flange.
Through adopting above-mentioned technical scheme, conveniently carry out the dismouting to first flowmeter and second flowmeter to be convenient for maintain or change first flowmeter and second flowmeter.
Optionally, the control valve is connected to the second branch pipe by a ferrule fitting or a flange.
Through adopting above-mentioned technical scheme, the control valve passes through cutting ferrule joint or flange and second branch connection, conveniently carries out the dismouting to the control valve, is convenient for maintain or change the control valve.
Optionally, the control valve is provided as a pneumatic ball valve.
Through adopting above-mentioned technical scheme, the valve execution speed of pneumatic ball valve is very fast, is convenient for control the switching of second branch pipe, and pneumatic ball valve adopts compressed air control valve simultaneously, can not produce the electric spark with the medium in the medium transmission pipe, has promoted the explosion-proof properties of second branch pipe.
Optionally, the throttle valve is connected to the medium transport pipe by a ferrule fitting or a flange.
Through adopting above-mentioned technical scheme, the choke valve passes through cutting ferrule joint or flange and is connected with the medium transmission pipe, conveniently carries out the dismouting to the choke valve to be convenient for maintain or change the choke valve.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the first flowmeter and the second flowmeter with different measuring ranges are arranged on the medium transmission pipe, when the flow of the medium in the medium transmission pipe is large, the flowmeter with the large measuring range is adopted for measurement, and when the flow of the medium in the medium transmission pipe is small, the flowmeter with the small measuring range is adopted for measurement, so that the measurement accuracy of the medium flow in the pipeline is improved;
2. the first branch pipe is connected with the second branch pipe in parallel, the second branch pipe is provided with a control valve, when the medium flow in the medium transmission pipe is large, the valve of the control valve is opened, the medium cannot be blocked at the flow measuring component, and the medium can flow out of the medium transmission pipe more smoothly; when the medium flow in the medium transmission pipe is small, the valve of the control valve is closed, so that the medium in the medium transmission pipe can only flow into the first branch pipe, the size of the pipe diameter is reduced, and the measurement precision of the second flowmeter is further improved;
3. a throttle valve is arranged at the downstream of the throttle valve, the size of a throttle hole can be adjusted by the throttle valve, and a proper throttle aperture is arranged according to different flow rates, so that no suction is generated at the outlet of the flow meter, and the measurement precision of the medium flow rate in the whole flow rate range is improved.
Drawings
Fig. 1 is a schematic diagram of a medium transmission pipe flow measurement device disclosed in embodiment 1 of the present application.
Fig. 2 is a schematic diagram of a medium transmission pipe flow measuring device disclosed in embodiment 2 of the present application.
Description of reference numerals: 1. a first flow meter; 2. a flow measurement assembly; 21. a first branch pipe; 22. a second flow meter; 23. a second branch pipe; 24. a control valve; 3. a throttle valve; 100. a medium conveying pipe.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The inventor finds that in the related art, the large-range flowmeter is not accurately tested under the working condition of small flow, even has no output; or the small-range flowmeter cannot adapt to the condition of large-flow output.
Example 1
Referring to fig. 1, embodiment 1 of the present application discloses a medium transfer pipe flow measurement device. The medium transmission pipe flow measuring device comprises a first flowmeter 1 connected to a medium transmission pipe 100, a flow measuring assembly 2 and a throttle valve 3.
Referring to fig. 1, two ends of a first flowmeter 1 are connected with a medium transmission pipe 100 through a ferrule fitting or a flange, so that the first flowmeter 1 can be conveniently mounted on or dismounted from the medium transmission pipe 100, and the first flowmeter 1 can be conveniently repaired or replaced.
Referring to fig. 1, a flow measurement assembly 2 is located downstream of a first flow meter 1 and in series with the first flow meter 1. The flow measurement assembly 2 includes a first branch pipe 21, a second flow meter 22, a second branch pipe 23, and a control valve 24. Wherein, the two ends of the first branch pipe 21 are connected to the medium transferring pipe 100, and the diameter of the first branch pipe 21 is smaller than that of the medium transferring pipe 100. The second flow meter 22 has a smaller span than the first flow meter 1. The second flowmeter 22 is connected with the first branch pipe 21 at two ends through a clamping sleeve joint or a flange, so that the second flowmeter 22 can be conveniently mounted or dismounted, and the second flowmeter 22 can be conveniently replaced or maintained.
Referring to fig. 1, the second branch pipe 23 is connected to the medium transferring pipe 100 at both ends thereof and is connected in parallel to the first branch pipe 21, and the sum of the sectional areas of the second branch pipe 23 and the first branch pipe 21 is equal to the sectional area of the medium transferring pipe 100. When the medium flow in the medium conveying pipe 100 becomes large, the flow measuring assembly 2 does not influence the medium flow; meanwhile, the pipe diameters of the first branch pipe 21 and the second branch pipe 23 are reduced, and the manufacturing cost of the first branch pipe 21 and the second branch pipe 23 is reduced. The two ends of the control valve 24 are connected to the second branch pipe 23 through a clamping sleeve connector or a flange, so that the control valve 24 can be conveniently mounted or dismounted, and the control valve 24 can be conveniently replaced or maintained. The control valve 24 is a pneumatic ball valve, and the valve execution speed of the pneumatic ball valve is high, so that the control valve 24 can control the opening and closing of the second branch pipe 23 conveniently. Meanwhile, the pneumatic ball valve adopts compressed air to open and close the valve, so that electric sparks generated by electric contact of the medium in the medium transmission pipe 100 are avoided, and the explosion-proof performance of the second branch pipe 23 is improved.
Referring to fig. 1, the throttle valve 3 is located at the downstream of the flow measuring assembly 2, and the throttle valve 3 can set a proper throttle aperture according to different flow rates, so that no suction is generated at the outlet of the flow meter, and high-precision measurement of the flow rate in the whole flow rate range is ensured. The two ends of the throttle valve 3 are connected to the medium transmission pipe 100 through the ferrule connectors or flanges, so that the throttle valve 3 can be conveniently mounted or dismounted, and the throttle valve 3 can be conveniently replaced or maintained.
The implementation principle of the flow measuring device for the medium transmission pipe in the embodiment 1 is as follows: when the flow rate in the medium conveying pipe 100 is large, the valve of the control valve 24 is opened, the first flowmeter 1 is used for measuring the flow rate of the medium, the medium flowing out of the medium conveying pipe 100 can enter the first branch pipe 21 and the second branch pipe 23 at the same time, the medium cannot be blocked at the flow measuring component 2, and the measuring accuracy of the first flowmeter 1 is improved. When the flow rate in the medium delivery pipe 100 is small, the valve of the control valve 24 is closed, the second flowmeter 22 is used for measuring the medium flow rate, the cross-sectional area from the medium delivery pipe 100 to the first branch pipe 21 is reduced, and the measuring effect of the second flowmeter 22 is improved.
Example 2
The difference between the example 2 and the example 1 is that: the flow measuring assemblies 2 are arranged in a plurality of groups at equal intervals along the flow direction of the medium conveying pipe 100, the range of the second flowmeter 22 arranged along the flow direction of the medium conveying pipe 100 is gradually reduced, and the diameter of the second branch pipe 23 arranged along the flow direction of the medium conveying pipe 100 is gradually reduced. The number of the throttle valves 3 is equal to the number of the flow measurement assemblies 2, and each throttle valve 3 is located at a position downstream of each set of the flow measurement assemblies 2 from the medium conveying pipe 100. By adding the second flow meters 22 with different measuring ranges, when the flow rate in the medium transmission pipe 100 is small, the medium flow rate is tested by using the second flow meters 22 with small measuring ranges, and the flow measurement precision in the medium transmission pipe 100 is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A medium transmission pipe flow measuring device is characterized in that: the medium flow meter comprises a first flow meter (1) and a flow measurement assembly (2) which are connected in series on a medium conveying pipe (100), wherein the flow measurement assembly (2) comprises a first branch pipe (21) connected to the medium conveying pipe (100) and a second flow meter (22) connected to the first branch pipe (21), and the measuring ranges of the first flow meter (1) and the second flow meter (22) are different.
2. The media transport tube flow measurement device of claim 1, wherein: the first flowmeter (1) is positioned at the input end of the medium delivery pipe (100), the range of the first flowmeter (1) is larger than that of the second flowmeter (22), the flow measurement assembly (2) further comprises a second branch pipe (23) connected in parallel to the first branch pipe (21) and a control valve (24) arranged on the second branch pipe (23), the diameter of the first branch pipe (21) is smaller than that of the medium delivery pipe (100), and the sum of the cross sections of the first branch pipe (21) and the second branch pipe (23) is not smaller than that of the medium delivery pipe (100).
3. The media transport tube flow measurement device of claim 2, wherein: the flow measurement assembly (2) is set to be a group, and the medium transmission pipe (100) is provided with a throttle valve (3) on one side of the flow measurement assembly (2) departing from the input end of the medium transmission pipe (100).
4. The media transport tube flow measurement device of claim 2, wherein: the flow measuring assemblies (2) are arranged into a plurality of groups, the flow measuring assemblies (2) are arranged at intervals along the medium transmission pipe (100), the measuring ranges of the second flow meters (22) on each group of flow measuring assemblies (2) are different, and the throttling valve (3) is arranged at the downstream position of the medium transmission pipe (100) of each group of flow measuring assemblies (2).
5. The media transport tube flow measurement device of claim 1, wherein: the first flowmeter (1) is connected with a medium transmission pipe (100) through a clamping sleeve joint or a flange, and the second flowmeter (22) is connected with the first branch pipe (21) through a clamping sleeve joint or a flange.
6. The media transport tube flow measurement device of claim 2, wherein: the control valve (24) is connected with the second branch pipe (23) through a clamping sleeve joint or a flange.
7. The media transport tube flow measurement device of claim 2, wherein: the control valve (24) is configured as a pneumatic ball valve.
8. A media transport tube flow measurement device according to claim 3 or 4, wherein: the throttle valve (3) is connected with the medium transmission pipe (100) through a clamping sleeve joint or a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121975841.6U CN215296331U (en) | 2021-08-21 | 2021-08-21 | Medium transmission pipe flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121975841.6U CN215296331U (en) | 2021-08-21 | 2021-08-21 | Medium transmission pipe flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215296331U true CN215296331U (en) | 2021-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121975841.6U Active CN215296331U (en) | 2021-08-21 | 2021-08-21 | Medium transmission pipe flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215296331U (en) |
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2021
- 2021-08-21 CN CN202121975841.6U patent/CN215296331U/en active Active
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