CN201561772U - Self-cleaning type gas flow device - Google Patents
Self-cleaning type gas flow device Download PDFInfo
- Publication number
- CN201561772U CN201561772U CN2009202189830U CN200920218983U CN201561772U CN 201561772 U CN201561772 U CN 201561772U CN 2009202189830 U CN2009202189830 U CN 2009202189830U CN 200920218983 U CN200920218983 U CN 200920218983U CN 201561772 U CN201561772 U CN 201561772U
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- gas flow
- flow meter
- gas
- differential pressure
- pressure transmitter
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- Expired - Fee Related
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- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a self-cleaning type gas flow device, which comprises a gas flow meter, a differential pressure transmitter and a flow totalizer arranged on a gas pipeline. The self-cleaning type gas flow device is characterized in that two pipelines connecting the gas flow meter and the differential pressure transmitter are respectively connected with a two-position three-way solenoid valve in series; during serial connection, the first ports of the two two-position three-way solenoid valves respectively face two pressure taps of the gas flow meter, the third ports of the two-position three-way solenoid valves respectively face two pressure taps of the differential pressure transmitter, and the second ports of the two-position three-way solenoid valves are both communicated with a gas source; and the power control lines of the two two-position three-way solenoid valves are respectively connected with a time relay controller. The device adopts the controller for automatic blowing instead of manual cleaning, thereby reducing the operational strength and improving the operational efficiency.
Description
Technical field
The utility model relates to the coal gas air supply system, is specifically related to the gas flow instrument.
Background technology
In the coal gas air supply system, all to the gas flow instrument be set for the user.The gas flow instrument comprises the gas flow meter (Verabar formula flowmeter) that is installed on the gas piping, is connected differential pressure transmitter and flow integrator on the gas flow meter.Owing to contain small amount of impurities and dust in the coal gas, can be after the gas flow meter long-time running at surface sediment impurity and dust,, cause the obstruction of gas flow meter pressure port easily as untimely cleaning, influence the normal use of gas flow meter.So the coal gas blockage problem is the FAQs with gas enterprise gas measurement always.Generally adopt artificial method of cleaning to solve.Artificial method of cleaning is comparatively loaded down with trivial details, has particularly increased the danger that people and coal gas directly contact during on-line cleaning, but also has influenced the normal use of measurement instrument.Therefore need the scientific and rational cleaning device of design one cover, realize gas flow meter is carried out on-line cleaning, fundamentally solve the cleaning problem of gas flow meter.
Summary of the invention
In order to solve the cleaning problem of bringing because of coal gas Du Sai Give gas flow meter, the utility model provides a kind of automatic cleaning type gas flow device.
The structure of this device is that it comprises gas flow meter, differential pressure transmitter and the flow integrator that is installed on the gas piping, it is characterized in that, is being connected in series a two-position three way magnetic valve on two pipelines that gas flow meter is connected with differential pressure transmitter respectively; During serial connection, towards two pressure tappings of gas flow meter, third connectivity mouth respectively towards differential pressure transmitter two pressure tappings, all with source of the gas connect respectively by second port for first port of two two-position three way magnetic valves; The electrical control lines of two two-position three way magnetic valves is connected respectively on the time relay controller.
Cleaning source of the gas recited above refers to pure nitrogen gas or saturated vapour.There are factories of gas source condition to pass through gas supply conduit at some, otherwise by the accumulator unit air feed.
Time relay controller recited above is the relay of regularly powering for two-position three way magnetic valve.
Principle of work of the present utility model and good effect are that time controller regularly is the two-position three way magnetic valve timing power supply.When two two-position three way magnetic valves simultaneously during dead electricity, their first and third via-hole opening, gas flow meter are in normal metering state; When two two-position three way magnetic valves get when electric, the solenoid valve commutation, their first, second and third through hole all communicates, and under the normal pressure state of gas flow meter, opens the cleaning source of the gas again, according to the purge time of setting gas flow meter is purged regularly.Thereby solve the cleaning problem of bringing because of coal gas Du Sai Give gas flow meter.
This device purges automatically by controller, has substituted the method for artificial cleaning, has alleviated operation intensity, has improved operating efficiency; Do not need flowmeter is carried out disassembly, cleaning, realized on-line cleaning, avoided the leakage problem of coal gas, reduced the danger that people and coal gas directly contact; Do not influence simultaneously the continuous working of flowmeter, realized the handling safety of control system and the stability of operation.
Description of drawings
Fig. 1 is a synoptic diagram of the present utility model.
Among the figure, the 1-gas flow meter, the 2-differential pressure transmitter, the 3-flow integrator, 4, the 5-two-position three way magnetic valve, 6-cleans source of the gas, 7-time relay controller, 8-gas piping.
Embodiment
As shown in Figure 1, the structure of this device is that it comprises gas flow meter 1, differential pressure transmitter 2 and the flow integrator 3 that is installed on the gas piping 8; It also comprises two-position three way magnetic valve 4, two-position three way magnetic valve 5 and cleaning source of the gas 6; The two-position three way magnetic valve 4 and 5 first port are connected on two pressure tappings of gas flow meter 1 with pipeline respectively, the two-position three way magnetic valve 4 and 5 second port are all connected with cleaning source of the gas 6, two-position three way magnetic valve 4 and 5 third connectivity mouth are connected with two imports of differential pressure transmitter 2 respectively, the output line connection traffic calculating instrument 3 of differential pressure transmitter 2, two-position three way magnetic valve 4 and 5 electrical control lines are connected respectively on the time relay controller 7.
Cleaning source of the gas 6 recited above refers to pure nitrogen gas or saturated vapour.Time relay controller 7 recited above is the relays of regularly powering for two-position three way magnetic valve.
Claims (1)
1. automatic cleaning type gas flow device, it comprises gas flow meter, differential pressure transmitter and the flow integrator that is installed on the gas piping, it is characterized in that, be connected in series a two-position three way magnetic valve on two pipelines that gas flow meter is connected with differential pressure transmitter respectively; During serial connection, towards two pressure tappings of gas flow meter, third connectivity mouth respectively towards differential pressure transmitter two pressure tappings, all with source of the gas connect respectively by second port for first port of two two-position three way magnetic valves; The electrical control lines of two two-position three way magnetic valves is connected respectively on the time relay controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202189830U CN201561772U (en) | 2009-12-11 | 2009-12-11 | Self-cleaning type gas flow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202189830U CN201561772U (en) | 2009-12-11 | 2009-12-11 | Self-cleaning type gas flow device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561772U true CN201561772U (en) | 2010-08-25 |
Family
ID=42626918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202189830U Expired - Fee Related CN201561772U (en) | 2009-12-11 | 2009-12-11 | Self-cleaning type gas flow device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561772U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778264A (en) * | 2012-08-10 | 2012-11-14 | 南京钢铁股份有限公司 | Automatic blowing device of converter flue gas flowmeter and control method thereof |
| CN102840891A (en) * | 2012-09-29 | 2012-12-26 | 大唐黄岛发电有限责任公司 | Net fume flow automatic blowing device and method |
| CN104438242A (en) * | 2014-09-09 | 2015-03-25 | 莱芜钢铁集团电子有限公司 | Gas pipeline maintaining system |
| CN105300459A (en) * | 2015-11-26 | 2016-02-03 | 山东钢铁股份有限公司 | Self-cleaning flow detection device |
| CN105903729A (en) * | 2016-06-15 | 2016-08-31 | 武金玉 | Anti-blocking purging device |
| CN106986439A (en) * | 2017-05-02 | 2017-07-28 | 东北大学 | A kind of ozonisation experimental system for automatically adjusting experiment condition |
| CN110657854A (en) * | 2019-10-23 | 2020-01-07 | 荆州市明德科技有限公司 | Device and method for automatically eliminating dead lock of volumetric flowmeter |
| CN111167771A (en) * | 2020-02-17 | 2020-05-19 | 青岛诺诚化学品安全科技有限公司 | Online closed cleaning and detecting system and technological method for flame arrester |
-
2009
- 2009-12-11 CN CN2009202189830U patent/CN201561772U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778264A (en) * | 2012-08-10 | 2012-11-14 | 南京钢铁股份有限公司 | Automatic blowing device of converter flue gas flowmeter and control method thereof |
| CN102840891A (en) * | 2012-09-29 | 2012-12-26 | 大唐黄岛发电有限责任公司 | Net fume flow automatic blowing device and method |
| CN104438242A (en) * | 2014-09-09 | 2015-03-25 | 莱芜钢铁集团电子有限公司 | Gas pipeline maintaining system |
| 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 |
| CN105903729A (en) * | 2016-06-15 | 2016-08-31 | 武金玉 | Anti-blocking purging device |
| CN106986439A (en) * | 2017-05-02 | 2017-07-28 | 东北大学 | A kind of ozonisation experimental system for automatically adjusting experiment condition |
| CN106986439B (en) * | 2017-05-02 | 2020-07-24 | 东北大学 | Ozonization experiment system capable of automatically adjusting experiment working conditions |
| CN110657854A (en) * | 2019-10-23 | 2020-01-07 | 荆州市明德科技有限公司 | Device and method for automatically eliminating dead lock of volumetric flowmeter |
| CN110657854B (en) * | 2019-10-23 | 2024-06-25 | 荆州市明德科技有限公司 | Device and method for automatically removing blocking of positive displacement flowmeter |
| CN111167771A (en) * | 2020-02-17 | 2020-05-19 | 青岛诺诚化学品安全科技有限公司 | Online closed cleaning and detecting system and technological method for flame arrester |
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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: 20100825 Termination date: 20111211 |