CN209117081U - A kind of bypass measuring device of pipeline water flow amount - Google Patents
A kind of bypass measuring device of pipeline water flow amount Download PDFInfo
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- CN209117081U CN209117081U CN201821563909.8U CN201821563909U CN209117081U CN 209117081 U CN209117081 U CN 209117081U CN 201821563909 U CN201821563909 U CN 201821563909U CN 209117081 U CN209117081 U CN 209117081U
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- sample
- pipeline
- main pipeline
- bypass duct
- water flow
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Abstract
The utility model belongs to pipeline water flow measurement technique field, more particularly to a kind of bypass measuring device of pipeline water flow amount, including main pipeline, sample tap, sample connection, bypass duct, flowmeter, go out sample connector, outlet, the sample connection, bypass duct, sample connector is pipeline out, the side of main pipeline is arranged in the bypass duct, the middle part is provided with a flowmeters, one end of bypass duct is connect with sample connection, the other end of sample connection is sample tap, and the sample tap penetrates in main pipeline；The bypass duct other end is connected with out sample connector, the other end of sample connector is outlet out, and the outlet penetrates in main pipeline, and the utility model solves in large diameter pipeline in the flow measurement of water flow, later period installs flowmeter installation difficulty additional, and the later period is facilitated to install flowmeter additional.
Description
Technical field
The utility model relates to pipeline water flow measurement technique fields, and in particular to a kind of bypass measurement of pipeline water flow amount
Device.
Background technique
The problems of liquid flow for needing to measure water flow in large diameter pipeline is often used in urban water supply, heating field, some
It is for trade settlement, is more the distribution, regulation and assessment for pipeline flow；But for water flow in large diameter pipeline
Flow measurement, need the later period to install flowmeter additional especially for some existing pipelines, it is complicated that the later period installs flowmeter construction additional
Cost is high.
The later period is needed to install flowmeter additional in this case in large diameter pipeline, the field condition much constructed does not have installation
The condition of duct type flowmeter, it is necessary to use inserting-type flowmeter, and use plug-in type flow timing, due to plug-in type itself
Flow measurement accuracy of measurement is not high, and being additionally inserted into fixed installation of the formula flowmeter in large diameter pipeline, there is also very big problems, together
When in-site installation some conditions there are also many uncertainties.
Therefore it in the practical application of engineering, especially in large diameter pipeline in the flow measurement of water flow, needs existing
In the case where the installation flowmeter of field, a kind of more simple and practical flow measurement device is needed, it is easy for installation and at low cost
Honest and clean, measurement result precision high accuracy is good, this flow measurement device in practical engineering applications, before having a wide range of applications
Scape.
Summary of the invention
The utility model provides a kind of bypass measuring device of pipeline water flow amount, a purpose of the utility model be for
It solves in large diameter pipeline in the flow measurement of water flow, the later period installs flowmeter installation difficulty additional, and the later period is facilitated to install stream additional
Meter.
The another object of the utility model is to reduce the cost of the flow measurement device of water flow in large diameter pipeline.
The another object of the utility model is to provide measuring water flow result precision high accuracy good measuring water flow
Device.
To realize the above-mentioned technical purpose, the utility model adopts the following technical solution is achieved:
A kind of bypass measuring device of pipeline water flow amount, including main pipeline, sample tap, sample connection, bypass duct, flow
Meter goes out sample connector, outlet, and the sample connection, bypass duct, sample connector is pipeline out, and the bypass duct setting exists
The side of main pipeline, the middle part is provided with a flowmeter, one end of bypass duct is connect with sample connection, sample connection it is another
One end is sample tap, and the sample tap penetrates in main pipeline；The bypass duct other end is connected with out sample connector, out sample connector
The other end be outlet, the outlet penetrates in main pipeline.
The axial direction of the sample connection and the axial angle of main pipeline are between 40 °~50 °.
The axial direction of the sample connection and the axial angle of main pipeline are 45 °.
The port surface of the sample tap and main pipeline it is axially vertical.
The port surface of the sample tap is arranged at the pipeline center of main pipeline.
The bypass duct is parallel to main pipeline.
Length of the bypass duct between sample connection and flowmeter is L1, and the diameter of main pipeline is D, L1 D
7~10 times.
The bypass duct is located at flowmeter and the length between sample connector is L2 out, and the diameter of main pipeline is D, L1 D
3~7 times.
The sample connection, bypass duct, the caliber of sample connector is respectively less than the caliber of main pipeline out.
The beneficial effects of the utility model are:
1, due to having used sample tap, sample connection, bypass duct, and sample connection and bypass duct caliber are much smaller than
The caliber of main pipeline is provided with flowmeter, so that sample connection and bypass duct are easy to pacify in main pipeline on bypass duct
Dress reduces the difficulty of large diameter pipeline later period installation flowmeter.
2, since sample tap is arranged in the pipeline of main pipeline, and bypass duct is parallel to main pipeline, so that sampling connects
Head and bypass duct are easily installed, and sample connection and bypass duct caliber are much smaller than the caliber of main pipeline, so that this is practical
Novel manufacturing cost and installation cost declines to a great extent.
3, the length due to bypass duct between sample connection and flowmeter is 7~10 times of the diameter of main pipeline,
Bypass duct is located at flowmeter and the length between sample connector is 3~7 times of the diameter of main pipeline out, significantly reduces sampling and connects
As shunting eddy current effect caused by main pipeline flow, the measurement result for improving the utility model is accurate for head and bypass duct
Property.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of the utility model；
In figure: 1, main pipeline；2, sample tap；3, sample connection；4, bypass duct；5, flowmeter；6, go out sample connector；7, go out
Sample mouth.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the utility model is further described, below in conjunction with attached drawing
And embodiment, to specific embodiment of the present utility model, structure feature and its effect, detailed description are as follows.
Embodiment 1:
In order to solve in large diameter pipeline in the flow measurement of water flow, the later period installs flowmeter installation difficulty additional, convenient
Later period installs flowmeter additional, and the present embodiment such as Fig. 1 provides a kind of bypass measuring device of pipeline water flow amount, including main pipeline 1, takes
Sample mouth 2, sample connection 3, bypass duct 4, flowmeter 5, go out sample connector 6, outlet 7, the sample connection 3, bypass duct 4,
Sample connector 6 is pipeline out, and the side of main pipeline 1 is arranged in the bypass duct 4, and the middle part is provided with a flowmeters 5, other
One end of road pipeline 4 is connect with sample connection 3, and the other end of sample connection 3 is sample tap 2, and the sample tap 2 penetrates main pipeline
In 1；4 other end of bypass duct is connected with out sample connector 6, and the other end of sample connector 6 is outlet 7, the outlet 7 out
It penetrates in main pipeline 1.
In actual use, on the main pipeline 1 for needing measuring flow, sample connection 3, the bypass duct compared with small diameter tube are installed
4 and out sample connector 6 formed flow measurement bypass, using the flow proportional relationship of bypass flow and main pipeline, to reach measurement
The purpose of main pipeline flow.
The flow of above-mentioned main pipeline 1 is G1, and the flow in bypass duct 4 is G2, by experiment discovery G1 and G2 exist than
Example relationship G1/G2=λ, wherein λ is the discharge coefficient of main pipeline 1 and bypass duct 4, and λ is normal in flow measurement range
The flow of main pipeline G1 can be obtained by the measurement to G2 in the case where discharge coefficient λ is determined in number, and discharge coefficient λ
Value demarcates acquisition by Portable movable flowmeter at the scene.
Since sample tap 2 is out of, main pipeline 1 is arranged in the side of main pipeline 1 pipeline, be conducive to accurately obtain supervisor
The water flow value in road 1.
The utility model is due to having used sample tap 2, sample connection 3, bypass duct 4, and sample connection 3 and shunt valve
The caliber in road 4 is much smaller than the caliber of main pipeline 1, flowmeter 5 is provided on bypass duct 4, so that sample connection 3 and shunt valve
Road 4 is easy to install in main pipeline, reduces the difficulty of large diameter pipeline later period installation flowmeter.
Embodiment 2:
On the basis of embodiment 1, in order to provide it is stable measured with accurately bypass, the axial direction of the sample connection 3 with
The axial angle of main pipeline 1 be 40 °~50 ° between,
The axial direction of preferred sample connection 3 and the axial angle of main pipeline 1 are 45 °.
The port surface of the sample tap 2 is axially vertical with main pipeline 1.
Due to sample tap 2 port surface and main pipeline 1 it is axially vertical, that is, perpendicular to the side of water flow in main pipeline 1
To being equivalent to and completely intercepted a part in water flow section, be conducive to be stably formed bypass duct 4 and main pipeline 1
The proportionate relationship of water flow is also beneficial to the Stability and veracity of 4 flow measurement of bypass duct.
Since the axial direction of sample connection 3 and the axial angle of main pipeline 1 are 45 °, will be intercepted in main pipeline 1 convenient for gentle
Water flow introduce bypass duct 4, also help on main pipeline 1 installation sample connection 3.
Embodiment 3:
Water flow on the basis of embodiment 1 or embodiment 2, at the pipeline center of acquisition main pipeline in order to be more accurate
The port surface of flow measurements, the sample tap 2 is arranged at the pipeline center of main pipeline 1.
The bypass duct 4 is parallel to main pipeline 1.
It is arranged at the pipeline center of main pipeline 1 due to the port surface of sample tap 2, sample tap 2 is enabled to intercept supervisor
Water flow section at the pipeline center in road 1, but also bypass duct 4 obtains at the pipeline center that water flow is exactly main pipeline 1
Water flow is conducive to the water flow measured value at the pipeline center of more accurate acquisition main pipeline 1 in this way.
Since bypass duct 4 is parallel to main pipeline 1, also allow in water (flow) direction and the main pipeline 1 in bypass duct 4
Water (flow) direction is consistent, and the flow be conducive in flow and main pipeline 1 in bypass duct 4 keeps stable proportionate relationship, favorably
In the accuracy for improving the flow measurement in bypass duct 4.
Embodiment 4:
On the basis of embodiment 3, caused to reduce sample connection 3 and bypass duct 4 due to shunting 1 flow of main pipeline
Eddy current effect, length of the bypass duct 4 between sample connection 3 and flowmeter 5 is L1, and the diameter of main pipeline 1 is
D, L1 are 7~10 times of D.
The bypass duct 4 is located at flowmeter 5 and the length between sample connector 6 is L2 out, and the diameter of main pipeline 1 is D, L1
It is 3~7 times of D.
The sample connection 3, bypass duct 4, the caliber of sample connector 6 is respectively less than the caliber of main pipeline 1 out.
Since length of the bypass duct 4 between sample connection 3 and flowmeter 5 is the diameter of main pipeline 1 7~10
Times, bypass duct 4 is located at flowmeter 5 and the length between sample connector 6 is 3~7 times of the diameter of main pipeline 1 out, is greatly reduced
Sample connection 3 and bypass duct 4 improve the survey of the utility model as shunting eddy current effect caused by main pipeline 1 flow
Measure result accuracy.
The embodiments of the present invention assembly and use process is as follows:
Assembling process: first by sample connection, bypass duct, flowmeter and out sample connector is connected as one, then in master
Open two holes on the side wall of pipeline, aperture outer diameter of sample connector slightly larger than sample connection and out, then by sample connection and sample out
Connector is inserted respectively into the hole that main pipeline is outputed, and is finally completed and is completed to seal using welding manner or thread seal mode,
Complete whole assembly.
Use process:
A, the bypass measuring device of pipeline water flow amount is installed to 1 on main pipeline；
B, multiple and different main pipeline flow G1 is adjusted at the construction field (site), measures these using Portable movable flowmeter
Different main pipeline flow G1；
C, these different corresponding bypass flow G2 of main pipeline flow G1 are obtained by the flowmeter 5 on bypass duct 4；
D, by step b and step c obtained corresponding G1 and G2, multiple discharge coefficient λ values are calculated, wherein λ=G1/
G2 ；
E, multiple discharge coefficient λ values are taken arithmetic mean of instantaneous value is the discharge coefficient λ value of calibration；
F, when needing to read main pipeline flow G1, read bypass duct 4 on flowmeter flow value G2, according to G1=λ ×
G1 can be obtained in G2, and wherein discharge coefficient λ is the discharge coefficient λ value for the calibration that step e is obtained.
When needing to read main pipeline flow G1, the flow value G2 of the flowmeter on bypass duct 4 is read, according to G1=λ X G2
Main pipeline flow G1 can be obtained.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model, the well-known components of component and the structure category industry that the present embodiment does not describe in detail
With common structure or conventional means, do not describe one by one here.
Claims (9)
1. a kind of bypass measuring device of pipeline water flow amount, including main pipeline (1), it is characterised in that: at least further include sample tap
(2), sample connection (3), bypass duct (4), flowmeter (5), out sample connector (6), outlet (7), the sample connection (3),
Bypass duct (4), sample connector (6) are pipeline out, and in the side of main pipeline (1), middle part is set for bypass duct (4) setting
It is equipped with a flowmeter (5), one end of bypass duct (4) is connect with sample connection (3), and the other end of sample connection (3) is to take
Sample mouth (2), the sample tap (2) penetrate in main pipeline (1)；Bypass duct (4) other end is connected with out sample connector (6),
The other end of sample connector (6) is outlet (7) out, and the outlet (7) penetrates in main pipeline (1).
2. the bypass measuring device of pipeline water flow amount according to claim 1, it is characterised in that: the sample connection (3)
Axial direction and main pipeline (1) axial angle be 40 °~50 ° between.
3. the bypass measuring device of pipeline water flow amount according to claim 2, it is characterised in that: the sample connection (3)
Axial direction and main pipeline (1) axial angle be 45 °.
4. the bypass measuring device of pipeline water flow amount according to claim 1, it is characterised in that: the sample tap (2)
Port surface is axially vertical with main pipeline (1).
5. the bypass measuring device of pipeline water flow amount according to claim 1, it is characterised in that: the sample tap (2)
Port surface is arranged at the pipeline center of main pipeline (1).
6. the bypass measuring device of pipeline water flow amount according to claim 1, it is characterised in that: the bypass duct (4)
It is parallel to main pipeline (1).
7. the bypass measuring device of pipeline water flow amount according to claim 1, it is characterised in that: the bypass duct (4)
Length between sample connection (3) and flowmeter (5) is L1, and the diameter of main pipeline (1) is D, and L1 is 7~10 times of D.
8. the bypass measuring device of pipeline water flow amount according to claim 1, it is characterised in that: the bypass duct (4)
The length between sample connector (6) is L2 positioned at flowmeter (5) and out, and the diameter of main pipeline (1) is D, and L1 is 3~7 times of D.
9. the bypass measuring device of pipeline water flow amount according to claim 1, it is characterised in that: the sample connection (3),
Bypass duct (4), the caliber for going out sample connector (6) are respectively less than the caliber of main pipeline (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821563909.8U CN209117081U (en) | 2018-09-26 | 2018-09-26 | A kind of bypass measuring device of pipeline water flow amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821563909.8U CN209117081U (en) | 2018-09-26 | 2018-09-26 | A kind of bypass measuring device of pipeline water flow amount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209117081U true CN209117081U (en) | 2019-07-16 |
Family
ID=67199343
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821563909.8U Expired - Fee Related CN209117081U (en) | 2018-09-26 | 2018-09-26 | A kind of bypass measuring device of pipeline water flow amount |
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|---|---|
| CN (1) | CN209117081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029592A (en) * | 2018-09-26 | 2018-12-18 | 张辞源 | A kind of the bypass measuring device and application method of pipeline water flow amount |
-
2018
- 2018-09-26 CN CN201821563909.8U patent/CN209117081U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029592A (en) * | 2018-09-26 | 2018-12-18 | 张辞源 | A kind of the bypass measuring device and application method of pipeline water flow amount |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190716 Termination date: 20210926 |