CN2844860Y - Online sweeping flowmeter pressure sampling tube device - Google Patents
Online sweeping flowmeter pressure sampling tube device Download PDFInfo
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- CN2844860Y CN2844860Y CN 200520087833 CN200520087833U CN2844860Y CN 2844860 Y CN2844860 Y CN 2844860Y CN 200520087833 CN200520087833 CN 200520087833 CN 200520087833 U CN200520087833 U CN 200520087833U CN 2844860 Y CN2844860 Y CN 2844860Y
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- flowmeter
- pressure
- verabar
- valves
- sweeping
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Abstract
The utility model discloses an on-line blowing and sweeping Wilba flowmeter pressure taking tube device, which mainly solves the problem of clogging of a pressure taking tube. The utility model comprises a Wilba flowmeter which uses three groups of valves and a differential pressure transmitter as partial components. The utility model is characterized in that two parallel pressure taking tubes are additionally arranged among the three groups of valves and the differential pressure transmitter of the Wilba flowmeter, and control valves are installed in the pressure taking tubes; simultaneously, two separate tubes are respectively formed on the lower parts of the two pressure taking tubes to be used as nitrogen gas / steam blowing and sweeping tubes, and control valves are also installed in the two blowing and sweeping tubes; both ends of each pressure taking tube and one end of each blowing and sweeping tube are respectively welded on corresponding connecting plates, the connecting plate of one end of each pressure taking tube is connected with the three groups of valves and the connecting plate of the other end of each pressure taking tube is connected with the differential pressure transmitter. The manual opening blowing and sweeping operation or fully automatic on-line blowing and sweeping operation can be realized by adopting a ball valve / electromagnetic valve mode. The utility model is especially suitable for a Wilba flowmeter when the Wilba flowmeter is used for measuring dirty coal gas.
Description
Affiliated technical field:
The utility model relates to a kind of device of on-line cleaning Verabar flowmeter pressure pipe, especially when the Verabar flowmeter is used to measure dirtier relatively coal gas.
Background technology:
The Verabar flow is counted differential pressure type flow meter, reliable structure with no movable piece, compare with orifice plate, have that the online installation that do not stop production, crushing are little, clear superiority such as long-time running precision height, good stability, operating cost are low, especially particularly evident for big caliber advantage, it is suitable for the measurement of all gases, liquid, steam flow.As Fig. 1, existing Verabar flowmeter mainly contains pressure difference transmitter 1, three groups of valves 2, a valve 3, is provided with the pressure pipe of malleation pressure port 4 and negative pressure pressure port 5.This Verabar flowmeter now has been widely used in the measurement of metallurgy industry gas flow, but it is because moisture higher in the coal gas with dustiness, dirt, aqueous mixtures very easily are bonded on " Verabar " pressure tube wall, cause positive and negative pressure port partly or entirely to stop up, and cause measuring misalignment.Needed to clean once in average more than 20 days when coal gas is dirtier.Common solution is exactly: pull down once table, extract " Verabar " gauge head out, with steam or nitrogen pressure port is cleared up, purged, and then pack into and rerun; Whole cleaning process 2 people need 2 hours approximately.Problems such as the easy obstruction of Verabar flowmeter in dirty coal gas (coal gas of converter, blast furnace, mixed gas) is measured, high maintenance amount have badly influenced instantaneity, accuracy, the application of continuous data.
Summary of the invention:
In order to overcome above-mentioned existing in prior technology deficiency, the utility model provides a kind of device of online purging Verabar flowmeter pressure pipe, and this device can be implemented in line and purges Verabar flowmeter pressure pipe, prevents obstruction and safety, convenience, saves time.
The technical solution of the utility model is, the device of this kind on-line cleaning Verabar flowmeter pressure pipe, comprise that with three groups of valves and differential pressure transmitter be the Verabar flowmeter of partial component, it is characterized in that, between three groups of valves of Verabar flowmeter and differential pressure transmitter, install two pressure pipelines arranged side by side additional, in the pressure pipeline, operation valve is installed; From two pressure pipe bottoms respectively and go out one and be in charge of, in these two scavenging pipelines operation valve also is installed simultaneously as nitrogen/steam blowing pipeline; Pressure pipe two ends and scavenging duct one end are welded on respectively on the corresponding web joint, and an end web joint of pressure pipe is connected with three groups of valves, and other end web joint is connected with differential pressure transmitter.
Further scheme of the present utility model is, described operation valve is ball valve, and this programme adopts each ball valve of manual control, and the manual control scavenging pipeline is finished cleaning works.
Further scheme of the present utility model can also be, described operation valve can also be solenoid valve, solenoid valve on the pressure pipeline is normal the battle, solenoid valve on the scavenging pipeline is normally closed point, each solenoid valve all connects the PLC control module, linking to each other with the PLC control module also is provided with transmitter or secondary instrument output, automatically or manual switch.This programme can be realized the automatic or semi-automatic cleaning of finishing.
The beneficial effects of the utility model are, need not pull down to reinstall after transmitter, extraction " Verabar " gauge head are cleared up, purged with steam or nitrogen to rerun, and finish stopping up the purge of pressure port but direct-on-line is manual.This device has following remarkable advantage: making is simple and be online installation, and is non-maintaining, do not influence normal measurement at ordinary times; Alleviated the labour intensity that instrument is safeguarded, improved work efficiency, will originally purge Verabar and finish in 2 hours, shortened to 1 people and finish in a few minutes by 2 people; PLC finishes cleaning automatically according to the instrument signal size under the automated manner, does not need any manually-operated, and once only purging needs 30 seconds, compares with the dismounting Verabar, and so the on-line cleaning in the short time is very little to the influence of metering and data clearing; Cause potential safety hazard that gas leak brings and frequent dismounting to the Verabar Effect on Performance when having eliminated because of pressure pipe plug plug dismounting Verabar, guarantee stable, the accurately operation of Verabar, prolong Verabar effective measuring period, improved the accuracy of measuring reliability, data.This shows that the utility model compared with prior art has substantive progressive and characteristics, the beneficial effect of its enforcement also is conspicuous.
Description of drawings:
Fig. 1 is the normal mounting synoptic diagram of existing Verabar flowmeter;
Fig. 2 is the utility model back-blowing device;
Fig. 3 is the mounting structure synoptic diagram of Fig. 2;
Fig. 4 is the control synoptic diagram under the utility model automated manner.
Among the figure, 1 pressure difference transmitter, 2 three groups of valves, No. 3 valves, 4 are provided with malleation pressure port, 5 negative pressure pressure ports, 8 back-blowing devices, 81 web joints, 82 pressure pipelines, 83 scavenging pipelines, 84 web joints, 85 steam source pipe roads.
Embodiment:
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by an embodiment.
As can be seen from Figure 2, the device of online purging Verabar flowmeter pressure pipe of the present utility model includes parts such as flowmeter, pressure pipeline 82, scavenging pipeline 83, operation valve A1, operation valve A2, operation valve B1, operation valve B2, web joint 81, web joint 84, steam source pipe road 85.
Three groups of valves 2 and differential pressure transmitter 1 are the member of existing Verabar flowmeter, and web joint 81, web joint 84 install a back-blowing device 8 additional between three groups of valves 2 of existing Verabar flowmeter and differential pressure transmitter 1.This back-blowing device 8 is provided with two pressure pipelines 82 arranged side by side, is separately installed with operation valve B1, operation valve B2 in the pressure pipeline.From two pressure pipe bottoms respectively and go out one and be in charge of, also be separately installed with operation valve A1, operation valve A2 in these two scavenging pipelines 83 simultaneously as nitrogen/steam blowing pipeline 83.Pressure pipeline 82 two ends are welded on respectively on web joint 81, the web joint 84.One end of pressure pipeline 82 is fastened and connected by web joint 84 and three groups of valves 1, and the other end is fastened and connected by web joint 81 and differential pressure transmitter 1.Scavenging pipeline can meet on the steam source pipe road 85, and steam source pipe road 85 1 ends are welded on another web joint.
Aforementioned operation valve all adopts ball valve, and manual mode control scavenging pipeline is finished cleaning works.
Manual mode.Operation valve A1, A2, B1, B2 are ball valve, when the pressure line clogging, manually carry out following operation: at first close and measure operation valve B1, B2.Interrupted open and close blowback operation valve A1, A2 blow about 5 seconds at every turn, stop for 5 seconds, repeat 2～3 times and get final product.Close blowback operation valve A1, A2, open measurement operation valve B1, B2 then simultaneously and can enter normal measurement.
Scheme of the present utility model can also be, operation valve A1, A2, B1, B2 are solenoid valve, solenoid valve on the pressure pipeline is normal the battle, solenoid valve on the scavenging pipeline is normally closed point, each solenoid valve all connects the PLC control module, linking to each other with the PLC control module also is provided with transmitter or secondary instrument output, automatically or manual switch.This programme can be realized the automatic or semi-automatic cleaning of finishing.
Semi-automatic and automated manner.Adopt solenoid valve to replace ball valve, A1, A2 select normally closed point, and B1, B2 choosing is normal makes war, and 4～20mA output signal of gathering transmitter or secondary instrument simultaneously then can be utilized the control of small PLC control module, realizes semi-automatic or automatic purging.Under the normal condition, measure operation valve B1, B2 for opening shape, blowback operation valve A1, A2 are for closing shape.Touch under the state that closes at automatic button K, the PLC control module judges whether the pressure pipeline stops up (surpass certain upper limit or be lower than certain lower limit) according to the instrument signal size that collects, measure operation valve B1, B2 as stopping up then at first to close, break-and-make switch blowback operation valve A1, A2 blow about 5 seconds at every turn, stop for 5 seconds, blow three times, close A1, A2 then, open B1, B2, the cleaning work process finishes.If the scene is difficult for the acquisition instrument output signal or because fluctuation of operating conditions can't judge whether to stop up according to signal magnitude, then can adopts semi-automatic mode, press semi-automatic button K1, the PLC control module collects this signal, carries out above-mentioned purging operation automatically.
Claims (3)
1, a kind of device of on-line cleaning Verabar flowmeter pressure pipe, comprise that with three groups of valves and differential pressure transmitter be the Verabar flowmeter of partial component, it is characterized in that, between three groups of valves of Verabar flowmeter and differential pressure transmitter, install two pressure pipelines arranged side by side additional, in the pressure pipeline, operation valve is installed; From two pressure pipe bottoms respectively and go out one and be in charge of, in these two scavenging pipelines operation valve also is installed simultaneously as nitrogen/steam blowing pipeline; Pressure pipe two ends and scavenging duct one end are welded on respectively on the corresponding web joint, and an end web joint of pressure pipe is connected with three groups of valves, and other end web joint is connected with differential pressure transmitter.
2, the device of a kind of on-line cleaning Verabar flowmeter pressure pipe according to claim 1 is characterized in that described operation valve is ball valve.
3, the device of a kind of on-line cleaning Verabar flowmeter pressure pipe according to claim 1, it is characterized in that, described operation valve is solenoid valve, solenoid valve on the pressure pipeline is normal the battle, solenoid valve on the scavenging pipeline is normally closed point, each solenoid valve all connects the PLC control module, links to each other with the PLC control module also to be provided with transmitter or secondary instrument output, automatic or manual switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087833 CN2844860Y (en) | 2005-10-11 | 2005-10-11 | Online sweeping flowmeter pressure sampling tube device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087833 CN2844860Y (en) | 2005-10-11 | 2005-10-11 | Online sweeping flowmeter pressure sampling tube device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2844860Y true CN2844860Y (en) | 2006-12-06 |
Family
ID=37486807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520087833 Expired - Fee Related CN2844860Y (en) | 2005-10-11 | 2005-10-11 | Online sweeping flowmeter pressure sampling tube device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2844860Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563201A (en) * | 2012-02-15 | 2012-07-11 | 山东洪达化工有限公司 | Device for eliminating leakage risk of gas gate valve online |
| CN102829833A (en) * | 2012-09-06 | 2012-12-19 | 上海华强浮罗仪表有限公司 | Online blowing thermal gas mass flowmeter |
| CN101769776B (en) * | 2010-01-22 | 2013-11-20 | 中国轻工业南宁设计工程有限公司 | Liquid-level pressure measuring device capable of being maintained on line |
| CN104258587A (en) * | 2014-09-26 | 2015-01-07 | 安徽淮化股份有限公司 | Negative steam-adding device of vacuum equipment instrument for producing industrial urea and use method thereof |
| CN104457861A (en) * | 2014-11-27 | 2015-03-25 | 中煤科工集团重庆研究院有限公司 | Uniform-speed tube flowmeter probe |
| CN105300459A (en) * | 2015-11-26 | 2016-02-03 | 山东钢铁股份有限公司 | Self-cleaning flow detection device |
| CN106352929A (en) * | 2016-08-26 | 2017-01-25 | 江苏伟屹电子有限公司 | Plug-in vortex probe with purge |
| CN108036828A (en) * | 2017-11-21 | 2018-05-15 | 广州西森自动化控制设备有限公司 | A kind of vortex-shedding meter with WiFi function |
| CN111693107A (en) * | 2019-03-12 | 2020-09-22 | 上海梅山钢铁股份有限公司 | Multifunctional probe combination device of power bar flowmeter |
-
2005
- 2005-10-11 CN CN 200520087833 patent/CN2844860Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769776B (en) * | 2010-01-22 | 2013-11-20 | 中国轻工业南宁设计工程有限公司 | Liquid-level pressure measuring device capable of being maintained on line |
| CN102563201A (en) * | 2012-02-15 | 2012-07-11 | 山东洪达化工有限公司 | Device for eliminating leakage risk of gas gate valve online |
| CN102563201B (en) * | 2012-02-15 | 2013-11-13 | 山东洪达化工有限公司 | Device for eliminating leakage risk of gas gate valve online |
| CN102829833A (en) * | 2012-09-06 | 2012-12-19 | 上海华强浮罗仪表有限公司 | Online blowing thermal gas mass flowmeter |
| CN104258587A (en) * | 2014-09-26 | 2015-01-07 | 安徽淮化股份有限公司 | Negative steam-adding device of vacuum equipment instrument for producing industrial urea and use method thereof |
| CN104457861A (en) * | 2014-11-27 | 2015-03-25 | 中煤科工集团重庆研究院有限公司 | Uniform-speed tube flowmeter probe |
| CN105300459A (en) * | 2015-11-26 | 2016-02-03 | 山东钢铁股份有限公司 | Self-cleaning flow detection device |
| CN105300459B (en) * | 2015-11-26 | 2018-07-31 | 山东钢铁股份有限公司 | Automatically cleaning flow detector |
| CN106352929A (en) * | 2016-08-26 | 2017-01-25 | 江苏伟屹电子有限公司 | Plug-in vortex probe with purge |
| CN108036828A (en) * | 2017-11-21 | 2018-05-15 | 广州西森自动化控制设备有限公司 | A kind of vortex-shedding meter with WiFi function |
| CN111693107A (en) * | 2019-03-12 | 2020-09-22 | 上海梅山钢铁股份有限公司 | Multifunctional probe combination device of power bar flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20091111 |