CN209326748U - The device of field monitoring flowmeter performance - Google Patents
The device of field monitoring flowmeter performance Download PDFInfo
- Publication number
- CN209326748U CN209326748U CN201920060361.3U CN201920060361U CN209326748U CN 209326748 U CN209326748 U CN 209326748U CN 201920060361 U CN201920060361 U CN 201920060361U CN 209326748 U CN209326748 U CN 209326748U
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- flowmeter
- monitoring
- performance
- pipe group
- field monitoring
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Abstract
The utility model relates to a kind of devices of field monitoring flowmeter performance.Aim to solve the problem that flowmeter performance state monitors difficult problem at the scene in the prior art.Including the differential pressure mechanism for monitoring being mounted in flowmeter downstream or updrift side, differential pressure mechanism for monitoring includes the measurement pipe group being vertically threaded on measured pipeline, a pressure monitoring point is respectively set in the front and back of pipe group, above-mentioned two pressure monitoring point is separately connected the input terminal of difference gauge, difference gauge inside density of setting compensation function further includes the single-chip microcontroller control mechanism being mounted on above measured pipeline, this mechanism can acquire and compare flowmeter indicating value and difference gauge output valve, to judge whether it meets functional relation.Advantage is: flowmeter indicating value can be monitored at any time, once the two generates significant difference, so that it may and it prompts user to flowmeter detailed inspection, finds the problem in time and overhauled or replaced, it is ensured that the interests of fluid foods supplier or demander are not suffered a loss.
Description
Technical field
The utility model relates to flowmeter monitoring field, especially a kind of device of field monitoring flowmeter performance.
Background technique
Flowmeter be indicate measured flux and (or) in selected time interval fluid total volume instrument.
It is in simple terms exactly a kind of instrument for measuring fluid flow in pipeline or open channel, at this stage in use, flow
Expendable influence caused by performance is counted often because of fluid media (medium) parameter (such as temperature, pressure, corrosivity) on flowmeter performance, and flow
Meter quality itself may also decline because of certain reason, the reduction of flowmeter performance index be caused, since these variations may be
Slowly, it is not easy to be found, immeasurable loss is caused to supplier or demander's interests.Especially since the instruction of flowmeter
Value slowly becomes smaller because of its sensitivity decrease, do not become smaller actually although flow value, supplier to be hard to tell be that flow value really becomes
It is small or it is false become smaller, charge by this indicated value less than normal, this just brings interests to lose to supplier；Conversely, then can to demander with
It loses, this is all gage work that person is unwilling to see.
The prior art is in order to verify the performance of flowmeter, certain indexs of only frequent detection stream meter, time-consuming and laborious, shadow
Ring the interests of user.In conclusion real-time monitoring easy to operate is carried out there is an urgent need to the field performance to flowmeter at this stage,
By finding the problem of flowmeter performance deteriorates early, to adopt remedial measures, user is avoided to lose.
Summary of the invention
The purpose of this utility model be exactly be difficult to monitor in real time to solve field monitoring flowmeter performance in the prior art,
The far-reaching problem of adverse effect.
The concrete scheme of the utility model is:
The device for designing a kind of field monitoring flowmeter performance, the differential pressure prison being mounted in flowmeter downstream or updrift side
Mechanism is surveyed, including the measurement pipe group being vertically threaded on the measured pipeline, the front and back of the pipe group is respectively set
One pressure monitoring point, above-mentioned two pressure monitoring point are separately connected the input terminal of difference gauge, the field monitoring flowmeter
Can device include be mounted on above measured pipeline to judge whether it meets the single-chip microcontroller control mechanism of functional relation,
The functional relation is X=M+KYa, wherein X is meter readings, and Y is reading of the monitoring device difference gauge after density compensation,
M is contrast base figure, and taking 0--4, K is the proportionality coefficient of monitoring device, and flowmeter of being subject to is tested, and value is between 1-1000, a
For index, 0.3-0.6 is taken.In specific implementation, the measurement pipe group includes outer tube and is mounted in the outer tube towards downstream
The inner tube of side, the side of the outer tube surface upstream are equipped with measured hole, the tangent position of corresponding said inner tube and the outer tube
Equipped with measured downstream hole, pressure monitoring point is disposed in the measured hole.
In specific implementation, flowmeter (by taking the electromagnetic flowmeter as an example) detecting element is mounted in the measured pipeline
In axis height.
In specific implementation, the single-chip microcontroller control mechanism includes the instrument board which is provided with chart, and the chart is shown in
The real-time reference value of X value and Y value under the limitation of functional relation.
The input terminal of the single-chip microcontroller control mechanism connects difference gauge, and output end connects alarm.
In specific implementation, the measurement pipe group is made of the seamless pipe that fluid resistant is corroded, and can be inserted into flowmeter tube
It in section or in the independent pipeline section for being serially connected with flowmeter upstream or downstream, cannot be influenced that flow can not be influenced by flowmeter
Meter.0.1--1 meters of the length of the independent pipeline section, two sides are equipped with flange to connect with main pipeline, are equipped with flange specifically with even
It is connected to user's main pipeline or is directly welded in main pipeline without flange.
The utility model has the beneficial effects that:
Whether the device of field monitoring flowmeter performance can be deteriorated and be given with the flowmeter performance in monitoring field use
Alarm ensures that flowmeter operates normally at any time.This equipment and flowmeter connect or are assemblied in the shell of flowmeter with caliber simultaneously
It is interior, it is installed in the upstream of flowmeter or downstream, can neither be interfered by the flowing of the flowmeter can not interfere flowmeter；
The present apparatus be not it is independent use but and be used in conjunction with its concatenated flowmeter, it is risen using its differential pressure value
Monitoring act on without being converted into flow by differential pressure, as long as therefore the requirement to the present apparatus be exactly it is reliable and stable this, energy
Whether the performance for monitoring flow meter is normal.Effective display, output flow in real time are provided by flowmeter when normal use
Signal, and extracted from the present apparatus be by density compensation differential pressure signal, only check another flow signal whether there is or not abnormality, two
The determination relationship established between signal can be obtained and provided to demander when dispatching from the factory and demarcating by flow meter manufacturers, can also throw
It is voluntarily obtained and is retained spare by user when flowmeter performance is good at the beginning of fortune；
Since present apparatus structure is simple, firmly installs, stable and reliable in work, signal has uniqueness, credible, and
The performance of flowmeter can but deteriorate because of accidentalia, and the two compares in real time, once there is difference, can perceive flow in respect of
Failure, on-call maintenance avoid the advantages of losing, having shown the present apparatus.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model structure；
Fig. 2 is the schematic diagram of another structure of the utility model；
Fig. 3 is the structural schematic diagram of differential pressure mechanism for monitoring in the utility model；
The names of the parts in figure: 1. measurement pipe groups；2. difference gauge；3. measured pipeline；4. connecting flange；5. flowmeter；
A, B respectively represents the pressure monitoring point of two sides.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
A kind of device of field monitoring flowmeter performance, referring to Fig. 1 to Fig. 3, including is mounted on flowmeter downstream direction
Differential pressure mechanism for monitoring, differential pressure mechanism for monitoring includes the measurement pipe group 1 being vertically threaded on the measured pipeline 3, the pipe
A pressure monitoring point is respectively set in the front and back of group, and above-mentioned two pressure monitoring point is separately connected the input of difference gauge 2
End, the device of the field monitoring flowmeter performance include be mounted on above measured pipeline to judge whether it meets letter
The single-chip microcontroller control mechanism of number relationship, the functional relation are X=M+KYa, wherein X is meter readings, and Y is that monitoring device is poor
Reading of the pressure meter after density compensation, M is contrast base figure, and taking 0--4, K is the proportionality coefficient of monitoring device, is tested with flowmeter
Subject to, for value between 1-1000, a is index, takes 0.3-0.6.Working condition carries out flowmeter test to flowmeter first,
The vertical of parameter in above-mentioned function can be obtained, the case where each flowmeter is different, and numerical value is different, and the test is normal in the art
See, so it will not be repeated.
In the present embodiment, measurement pipe group 1 includes outer tube and is mounted on the inner tube in outer tube towards downstream end side, outer tube towards
The side of upstream is equipped with measured hole, and the tangent position of corresponding inner tube and outer tube is equipped with measured downstream hole, placement pressure in measured hole
Power monitoring point.
Flowmeter (by taking electromagnetic flowmeter as an example) detecting element (electrode) is mounted on measured 3 inner wall central axes height of pipeline
On.
Single-chip microcontroller control mechanism includes the instrument board which is provided with chart, and chart is shown in X value under the limitation of functional relation
With the real-time reference value of Y value.The input terminal of the single-chip microcontroller control mechanism connects difference gauge, and output end connects alarm.Having
In the work of body, more original papery reference chart could alternatively be, also so as to staff's real time monitoring, the design cost
Low, structure is simple, although simply relying on manpower, once flowmeter 5 is faulty, cause measured value not in particular result
Interior, worker can intuitively observe.
The measurement pipe group is made of the seamless pipe that fluid resistant is corroded, and can be inserted into meter spool piece or concatenate
It in the independent pipeline section in flowmeter upstream or downstream, cannot be influenced that flowmeter can not be influenced by flowmeter.The individual tubes
0.1--1 meters of length of section, two sides are equipped with flange to connect with main pipeline, are equipped with flange specifically to be connected to user supervisor
Road is directly welded in main pipeline without flange.
Embodiment 2
The present embodiment principle with embodiment 1, it is specific the difference is that:
It connects as shown in Figure 1, differential pressure mechanism for monitoring carries one section of short tube and flowmeter with caliber, in the upstream of flowmeter
Or downstream installation, can neither be interfered by the flowing of the flowmeter can not interfere flowmeter.The present apparatus is perpendicular to pipe axis
A piece seamless steel pipe is made of outer tube and inner tube, and inner tube is the steel pipe of a small diameter, and the two is fixed into one in inside
Several circular holes are opened at body, the front of outer steel pipe and the back side of interior steel pipe respectively, experience the total pressure and static pressure of fluid respectively, the two
Difference detected through difference gauge.The present apparatus be not it is independent use but and be used in conjunction with its concatenated flowmeter, it is only
Play monitoring without being converted into flow by differential pressure using its differential pressure value, therefore the requirement to the present apparatus is exactly reliable and stable
If this, the performance that can monitor flow meter it is whether normal.It is effective in real time by flowmeter offer when normal use
Display, output flow signal, and that extracts from the present apparatus is differential pressure signal after density compensation, only checks another flow letter
Number whether there is or not abnormality, the determination relationship established between two signals can be obtained and provided to when dispatching from the factory and demarcating by flow meter manufacturers and be needed
Side can also voluntarily be obtained by user and be retained spare when flowmeter performance is good at the beginning of putting into operation.Due to present apparatus structure
Simply, it firmly installs, is stable and reliable in work, signal has uniqueness, and it is credible, and the performance of flowmeter can be because accidental
Factor and deteriorate, the two compares in real time, once there is difference, can perceive flow in respect of failure, and on-call maintenance avoids damaging
The advantages of losing, having shown the present apparatus.
Finally, it should be noted that the above is only the preferred embodiment of the utility model, it is not limited to practical
It is novel, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include
It is within the protection scope of the utility model.
Claims (5)
1. a kind of device of field monitoring flowmeter performance, it is characterised in that: including being mounted on flowmeter downstream or updrift side
On differential pressure mechanism for monitoring, differential pressure mechanism for monitoring includes the measurement pipe group (1) that is vertically threaded on the measured pipeline (3),
A pressure monitoring point is respectively set in the front and back of the pipe group, and above-mentioned two pressure monitoring point is separately connected difference gauge
(2) input terminal, the device of the field monitoring flowmeter performance further include be mounted on above measured pipeline to judge
Its single-chip microcontroller control mechanism for whether meeting functional relation, the functional relation are X=M+KYa, wherein X is flowmeter (5) reading
Number, Y are reading of the monitoring device difference gauge after density compensation, and M is contrast base figure, and taking 0--4, K is the ratio system of monitoring device
Number, flowmeter of being subject to are tested, and for value between 1-1000, a is index, takes 0.3-0.6.
2. the device of field monitoring flowmeter performance as described in claim 1, it is characterised in that: measurement pipe group (1) packet
It including outer tube and is mounted on the inner tube in the outer tube towards downstream end side, the side of the outer tube surface upstream is equipped with measured hole,
The tangent position of corresponding said inner tube and the outer tube is equipped with measured downstream hole, disposes pressure monitoring point in the measured hole.
3. the device of field monitoring flowmeter performance as described in claim 1, it is characterised in that: the single-chip microcontroller control mechanism
Instrument board including which is provided with chart, the chart are shown in the real-time reference value of X value and Y value under the limitation of functional relation.
4. the device of field monitoring flowmeter performance as described in claim 1, it is characterised in that: the single-chip microcontroller control mechanism
Input terminal connect difference gauge, output end connect alarm.
5. the device of field monitoring flowmeter performance as described in claim 1, it is characterised in that: the measurement pipe group (1) by
The seamless pipe of fluid resistant corrosion is made, and is inserted into meter spool piece or in the individual tubes for being serially connected with flowmeter upstream or downstream
In section, 0.1--1 meters of the length of the independent pipeline section, two sides are connect with main pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920060361.3U CN209326748U (en) | 2019-01-15 | 2019-01-15 | The device of field monitoring flowmeter performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920060361.3U CN209326748U (en) | 2019-01-15 | 2019-01-15 | The device of field monitoring flowmeter performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209326748U true CN209326748U (en) | 2019-08-30 |
Family
ID=67731240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920060361.3U Expired - Fee Related CN209326748U (en) | 2019-01-15 | 2019-01-15 | The device of field monitoring flowmeter performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209326748U (en) |
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2019
- 2019-01-15 CN CN201920060361.3U patent/CN209326748U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20190830 Termination date: 20220115 |