CN206945073U - A kind of remote flow measures low discharge compensation system - Google Patents
A kind of remote flow measures low discharge compensation system Download PDFInfo
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- CN206945073U CN206945073U CN201720942309.1U CN201720942309U CN206945073U CN 206945073 U CN206945073 U CN 206945073U CN 201720942309 U CN201720942309 U CN 201720942309U CN 206945073 U CN206945073 U CN 206945073U
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- transmitter
- temperature
- pressure transmitter
- low discharge
- pressure
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Abstract
The utility model discloses a kind of remote flow to measure low discharge compensation system, its drip irrigation device is, including the vortex-shedding meter being sequentially connected along vapor transport direction, first pressure transmitter, first temperature transmitter and autocontrol valve, these components are electrically connected by data wire with control rack, control rack is connected by the GPRS wireless transport modules for setting it internal with terminal monitoring device network communication, autocontrol valve output end is connected with hand valve in turn, second pressure transmitter and second temperature transmitter, wherein, the pressure measxurement lower limit of second pressure transmitter is less than first pressure transmitter, the temperature survey lower limit of second temperature transmitter is less than the first temperature transmitter, and hand valve, second pressure transmitter and second temperature transmitter are close to user terminal.The utility model aims to provide a kind of remote flow metering low discharge compensation system, can realize monitoring to the low discharge in pipeline, reduce loss.
Description
Technical field
Remote metering data transmission control field is the utility model is related to, more specifically, it relates to a kind of remote flow
Measure low discharge compensation system.
Background technology
Remote flow metering system improves the mode of traditional-handwork meter reading, it is possible to achieve the real-time monitoring of remote flow meter
Monitoring and data transfer, important parameter and each node real-time data to system operation are intuitively shown.It is existing long-range
Flow measuring system, its primary structure include the vortex-shedding meter, pressure transmitter, temperature being sequentially connected along steam conveying direction
Transmitter and autocontrol valve, vortex-shedding meter connection heat supply steam supply end, these electronic components pass through data wire and control
Rack is connected, and control rack controls the opening and closing of autocontrol valve valve, when each user terminal needs to use vapour, passes through flux of vortex street
After meter, pressure transmitter and temperature transmitter measure flow value, control rack control autocontrol valve, which is opened, is delivered to steam
User terminal, under normal state, autocontrol valve is closed, control rack by the GPRS wireless transport modules of inside with
Terminal monitoring device realizes that network communication connects.Wherein, vortex-shedding meter can only measure steam in industrial pipeline or other gases
Volume flow, but its quality is had a great influence by temperature, pressure during the given volume of gas, pressure transmitter and temperature transmitter
Then it is used for measure field temperature and pressure, and the measured value of vortex-shedding meter is compensated automatically by calculation formula, and instead
It is fed on the measuring instrument in control rack.
In actual applications, autocontrol valve valve is difficult to accomplish to completely close, and very little is often had in industrial pipeline
Flow by, but due to by vortex-shedding meter in the market, pressure transmitter and temperature transmitter measurement lower limit spirit
The limitation of sensitivity, when the fluid flow in pipeline is less than some numerical value, vortex-shedding meter measured value is zero, but is in fact had
Possible fluid is also flowing, and user is also with vapour（Heat）, can so be suffered a loss for heat supply steam supply end because of few metering, all the year round
It is probably month after month a no small numeral；But opposite, if pressure transmitter and temperature transmitter sensitivity are set
It is very high, although the low discharge in pipeline can be measured, because autocontrol valve valve is difficult to accomplish to completely close, that is, use
Family is not with vapour（Heat）, vortex-shedding meter still suffer from metering display, so can also incur loss for a user.
The content of the invention
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of remote flow metering low discharge
Compensation system, monitoring can be realized to the low discharge in pipeline, reduce loss.
To achieve the above object, the utility model provides following technical scheme：A kind of remote flow metering low discharge is mended
Repay system, including be sequentially connected along vapor transport direction vortex-shedding meter, first pressure transmitter, the first temperature transmitter and
Autocontrol valve, the vortex-shedding meter, first pressure transmitter, the first temperature transmitter and autocontrol valve pass through data
Line electrically connects with control rack, and the control rack is by setting its internal GPRS wireless transport module and terminal monitoring device net
Network communication connection, the autocontrol valve output end are connected with hand valve, second pressure transmitter and second temperature transmitter in turn,
Wherein, the pressure measxurement lower limit of the second pressure transmitter is less than first pressure transmitter, the second temperature transmitter
Temperature survey lower limit be less than the first temperature transmitter, and the hand valve, second pressure transmitter and second temperature transmitter
It is close to user terminal.
Preferably, the terminal monitoring device is PC ends or mobile phone terminal.
The technical scheme has compared with prior art：Except arranged on vortex-shedding meter side the first temperature transmitter and
Outside first pressure transmitter, then in the user terminal away from vortex-shedding meter lower the of one group of measurement lower limit value is additionally arranged again
Two temperature transmitters and second pressure transmitter, when there is low discharge to pass through autocontrol valve, by sensitivity it is higher second
The temperature and pressure value of temperature transmitter and second pressure transmitter measurement user terminal, when this group of numerical value is more than both sides' agreement
When " threshold value ", just measured, and fed back on the measuring instrument in control rack with minimum stream value, do not having to vapour usually
In the state of, user can close the hand valve of user terminal, prevent user from additionally producing flow measurement in the case of without vapour and making
Into loss.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of remote flow of the utility model measures low discharge compensation system embodiment.
In figure：1st, vortex-shedding meter；2nd, first pressure transmitter；3rd, the first temperature transmitter；4th, autocontrol valve；5th, control
Rack processed；51st, measuring instrument；52nd, GPRS wireless transport modules；6th, terminal monitoring device；7th, hand valve；8th, second pressure transmitter；
9th, second temperature transmitter.
Embodiment
Reference picture 1 is described further to a kind of remote flow of the utility model metering low discharge compensation system embodiment.
As shown in figure 1, its primary structure of this remote flow metering low discharge compensation system is included along vapor transport direction
Vortex-shedding meter 1, first pressure transmitter 2, the first temperature transmitter 3 and the autocontrol valve 4 being sequentially connected, these components
It is connected by data wire with control rack 5, when user terminal needs to use vapour, heat supply steam supply end is responsible for supplying steam, vortex street stream
Gauge 1 is used to measure the volume flow of steam or other gases in industrial pipeline, first pressure transmitter 2 and the first temperature pick-up
Temperature and pressure of the device 3 for measure field flow when larger, and pass through calculation formula and the measured value of vortex-shedding meter 1 is carried out
Automatic compensation, and display is fed back to the measuring instrument 51 in control rack 5, after measuring flow value, control rack 5 controls automatically
Control valve 4 is opened is delivered to user terminal for users to use by steam, and under normal state, autocontrol valve 4 is then closed；
In addition, the technical scheme additionally arranges the second lower temperature of one group of measurement lower limit value again in the user terminal away from vortex-shedding meter 1
Transmitter 9 and second pressure transmitter 8 are spent, when there is low discharge by autocontrol valve 4, passes through the second higher temperature of sensitivity
Spend transmitter 9 and second pressure transmitter 8 measures the temperature and pressure value of user terminal, when this group of numerical value is more than both sides' agreement
When " threshold value ", just measured with minimum stream value, and feed back on the measuring instrument 51 in control rack 5, all numbers
According to can be sent by being arranged at the GPRS wireless transport modules 52 inside control rack 5 to terminal monitoring device 6, prison in real time is realized
Control, in the state of usually vapour is not had to, user can close the hand valve 7 of user terminal, prevent user's volume in the case of without vapour
Outer generation flow measurement causes damage.
Further, terminal monitoring device 6 can be PC ends or mobile phone terminal, play a part of host computer, realize monitoring in real time.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (2)
1. a kind of remote flow measures low discharge compensation system, including the vortex-shedding meter being sequentially connected along vapor transport direction
(1), first pressure transmitter (2), the first temperature transmitter (3) and autocontrol valve (4), the vortex-shedding meter (1), first
Pressure transmitter (2), the first temperature transmitter (3) and autocontrol valve (4) are electrically connected by data wire and control rack (5)
Connect, the control rack (5) is by setting its internal GPRS wireless transport module (52) and terminal monitoring device (6) network communication
Connection, it is characterized in that：Autocontrol valve (4) output end is connected with hand valve (7), second pressure transmitter (8) and in turn
Two temperature transmitters (9), wherein, the pressure measxurement lower limit of the second pressure transmitter (8) is less than first pressure transmitter
(2), the temperature survey lower limit of the second temperature transmitter (9) is less than the first temperature transmitter (3), and the hand valve (7),
Second pressure transmitter (8) and second temperature transmitter (9) are close to user terminal.
2. a kind of remote flow metering low discharge compensation system according to claim 1, it is characterized in that：The terminal monitoring
Device (6) is PC ends or mobile phone terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720942309.1U CN206945073U (en) | 2017-07-31 | 2017-07-31 | A kind of remote flow measures low discharge compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720942309.1U CN206945073U (en) | 2017-07-31 | 2017-07-31 | A kind of remote flow measures low discharge compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206945073U true CN206945073U (en) | 2018-01-30 |
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ID=61371983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720942309.1U Active CN206945073U (en) | 2017-07-31 | 2017-07-31 | A kind of remote flow measures low discharge compensation system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206945073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046835A (en) * | 2021-09-29 | 2022-02-15 | 华能苏州热电有限责任公司 | Steam flow metering method and device based on flow integrating instrument |
-
2017
- 2017-07-31 CN CN201720942309.1U patent/CN206945073U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046835A (en) * | 2021-09-29 | 2022-02-15 | 华能苏州热电有限责任公司 | Steam flow metering method and device based on flow integrating instrument |
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