CN102778264A - Automatic blowing device of converter flue gas flowmeter and control method thereof - Google Patents
Automatic blowing device of converter flue gas flowmeter and control method thereof Download PDFInfo
- Publication number
- CN102778264A CN102778264A CN2012102853885A CN201210285388A CN102778264A CN 102778264 A CN102778264 A CN 102778264A CN 2012102853885 A CN2012102853885 A CN 2012102853885A CN 201210285388 A CN201210285388 A CN 201210285388A CN 102778264 A CN102778264 A CN 102778264A
- Authority
- CN
- China
- Prior art keywords
- solenoid valve
- pipeline
- negative pressure
- pipe
- gas flowmeter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The invention relates to related devices for measuring converter flue gas flow in the metallurgy field, in particular to an automatic blowing device of a converter flue gas flowmeter and a control method thereof. A blowing return circuit is increased, the blowing return circuit is composed of a main pipe connected with an air source and two parallel branch pipes led out from the main pipe, the first branch pipe is connected to a positive pressure pipe of a measuring pipeline, the second branch pipe is connected to a negative pressure pipe of the measuring pipeline, a fourth electromagnetic valve is arranged on the first branch pipe, a fifth electromagnetic valve is arranged on the second branch pipe, a first electromagnetic valve is arranged on the positive pressure pipe of the measuring pipeline, a second electromagnetic valve is arranged on the negative pressure pipe of the measuring pipeline, a connecting pipe is connected between the positive pressure pipe and the negative pressure pipe of the measuring pipeline, and a third electromagnetic valve is arranged on the connecting pipe. The blowing return circuit is used for blowing a throttling element and the measuring pipeline, blowing effect is achieved, measuring instruments are not damaged, blockage of the converter flue gas flowmeter measuring pipeline and the throttling element is effectively avoided, and measuring accuracy is guaranteed.
Description
Technical field
The present invention relates to the converter gas flow measurement relevant apparatus of field of metallurgy, a kind of specifically converter gas flowmeter automatic blowout device and control method thereof.
Background technology
Converter gas generally adopts differential pressure method to measure flow, and restricting element is installed on flue, measures flow through differential pressure before and after measuring it; The formation of converter gas flowmeter is generally as shown in Figure 1; Comprise restricting element 2, measure pipeline 3, three valve groups 4 and differential pressure transmitter 5, restricting element 2 is installed on flue 1, measure pipeline 3 one ends and connect restricting element 2; The other end connects three valve groups 4; Measurement pipeline 3 is provided with forward voltage diode and is connected with the plemum of restricting element 2, and measurement pipeline 3 is provided with the negative pressure pipe and is connected with the negative pressure chamber of restricting element 2, and differential pressure transmitter 5 connects three valve groups 4; Because the converter gas dustiness is big and humidity is higher, therefore restricting element 2 produces easily with measurement pipeline 3 and stops up, thus the measuring error of causing.
Summary of the invention
Technical matters to be solved by this invention is, overcomes the shortcoming of prior art, and a kind of converter gas flowmeter automatic blowout device and control method thereof are provided, and can avoid the obstruction of converter gas flowmeter survey pipeline and restricting element, guarantees the accuracy of measuring.
The technical scheme that the present invention solves above technical matters is:
Converter gas flowmeter automatic blowout device; Comprise restricting element, measure pipeline, three valve group and differential pressure transmitters, restricting element is installed on flue, measure pipeline one end and connect restricting element; The other end connects three valve groups; The measurement pipeline is provided with forward voltage diode and is connected with the plemum of restricting element, and the measurement pipeline is provided with the negative pressure pipe and is connected with the negative pressure chamber of restricting element, and differential pressure transmitter connects three valve groups; Also comprise purge circuit; Two arms of the parallel connection that purge circuit is told by a house steward who is connected with source of the gas and from house steward are formed, and first arm is connected to the forward voltage diode of measuring pipeline, and second arm is connected to the negative pressure pipe of measuring pipeline; First arm is provided with the 4th solenoid valve; Second arm is provided with the 5th solenoid valve, and the forward voltage diode of measuring pipeline is provided with first solenoid valve, and the negative pressure pipe of measuring pipeline is provided with second solenoid valve; Be connected to connecting pipe between the forward voltage diode of measurement pipeline and the negative pressure pipe, connecting pipe is provided with the 3rd solenoid valve.
The control method of aforementioned converter gas flowmeter automatic blowout device, carry out according to the following steps:
During the (1) converter tapping, open the 3rd solenoid valve, close first solenoid valve and second solenoid valve, the 4th solenoid valve and the 5th solenoid valve are opened in pulse, and pulse purges and finishes back entering next step;
(2) closes the 4th solenoid valve and the 5th solenoid valve, opens first solenoid valve and second solenoid valve, closes the 3rd solenoid valve, returns step (4) when waiting next time converter tapping, and circulation is carried out.
The technical scheme that the present invention further limits is:
Aforesaid converter gas flowmeter automatic blowout device; First solenoid valve is connected on first arm and measures on the forward voltage diode of contact and the measurement pipeline between the three valve groups of pipeline forward voltage diode; On the contact that second solenoid valve is connected on second arm and measures pipeline negative pressure pipe and the negative pressure pipe of the measurement pipeline between the three valve groups, connecting pipe is connected between first solenoid valve and second solenoid valve and the three valve groups on the measurement pipeline.
Aforesaid converter gas flowmeter automatic blowout device, source of the gas is a source nitrogen.
The control method of aforesaid converter gas flowmeter automatic blowout device, pulse purge and to be specially: solenoid valve opens and cut out 8-12 second in 3-6 seconds then is that pulsatile once purges, and purges 40-60 time altogether.
The control method of aforesaid converter gas flowmeter automatic blowout device, pulse source purge gas are nitrogen.
The invention has the beneficial effects as follows: when converter tapping, pass through automatic blowout device of the present invention; Adopt purge circuit that restricting element and measurement pipeline are purged according to steering logic of the present invention; Not only reached the purging effect but also do not damage measurement instrument; Avoid the obstruction of converter gas flowmeter survey pipeline and restricting element effectively, guaranteed the accuracy of measuring.
Description of drawings
Fig. 1 is the connection synoptic diagram of converter gas flowmeter.
Fig. 2 is a connection synoptic diagram of the present invention.
Fig. 3 is a control flow chart of the present invention.
Embodiment
Present embodiment is a kind of converter gas flowmeter automatic blowout device, connects as shown in Figure 2ly, comprises restricting element 2, measures pipeline 3, three valve groups 4 and differential pressure transmitter 5; Restricting element 2 is installed on flue 1; Measure pipeline 3 one ends and connect restricting element 2, the other end connects three valve groups 4, and measurement pipeline 3 is provided with forward voltage diode and is connected with the plemum of restricting element 2; Measurement pipeline 3 is provided with the negative pressure pipe and is connected with the negative pressure chamber of restricting element 2, and differential pressure transmitter 5 connects three valve groups 4; Also comprise purge circuit; The two arm N1 and the N2 of the parallel connection that purge circuit is told by a house steward N who is connected with source of the gas and from house steward N form, and arm N1 is connected to the forward voltage diode of measuring pipeline 3, and arm N2 is connected to the negative pressure pipe of measuring pipeline 3; Arm N1 is provided with solenoid valve 6-4; Arm N2 is provided with solenoid valve 6-5, and the forward voltage diode of measuring pipeline 3 is provided with solenoid valve 6-1, and the negative pressure pipe of measuring pipeline 3 is provided with solenoid valve 6-2; Be connected to connecting pipe N3 between the forward voltage diode of measurement pipeline 3 and the negative pressure pipe, connecting pipe N3 is provided with solenoid valve 6-3.Solenoid valve 6-1 is connected on arm N1 and measures on the forward voltage diode of contact and the measurement pipeline 3 between the three valve groups 4 of pipeline forward voltage diode; On the contact that solenoid valve 6-2 is connected on arm N2 and measures pipeline negative pressure pipe and the negative pressure pipe of the measurement pipeline 3 between the three valve groups 4, connecting pipe N3 is connected between solenoid valve 6-1 and solenoid valve 6-2 and the three valve groups 4 on the measurement pipeline 3.
The control method of converter gas flowmeter automatic blowout device, flow process is as shown in Figure 3, carries out according to the following steps:
During the (1) converter tapping, open solenoid valve 6-3, close solenoid valve 6-1 and solenoid valve 6-2, solenoid valve 6-4 and solenoid valve 6-5 are opened in pulse, and pulse purges and finishes back entering next step; Pulse purges and to be specially: solenoid valve is opened 3-6, and to close 8-12 second second then be that pulsatile once purges, and purges 40-60 time altogether; The pulse source purge gas is a nitrogen.
(2) closes solenoid valve 6-4 and solenoid valve 6-5, opens solenoid valve 6-1 and solenoid valve 6-2, closes solenoid valve 6-3, returns step (4) when waiting next time converter tapping, and circulation is carried out.
Like this; 5 solenoid valves of logical order control by certain carry out pulse and purge during converter tapping, solenoid valve 6-4 and 6-5 pulsed are opened; Utilize purge circuit that restricting element and measurement pipeline are purged; Solenoid valve is opened and shut-in time and purge number of times and can adjust, and generally opens 3-6 second, closes 8-12 second, purges 40-60 time.Adopt nitrogen to carry out pulsed to purge, can avoid the obstruction of converter gas flowmeter survey pipeline and restricting element, guarantee the accuracy of measurement bessemerizing the gap.
Except that the foregoing description, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (6)
1. converter gas flowmeter automatic blowout device; Comprise restricting element (2), measure pipeline (3), three valve groups (4) and differential pressure transmitter (5); Go up installation restricting element (2) at flue (1); Measure pipeline (3) one ends and connect restricting element (2), the other end connects three valve groups (4), and measurement pipeline (3) is provided with forward voltage diode and is connected with the plemum of restricting element (2); Measurement pipeline (3) is provided with the negative pressure pipe and is connected with the negative pressure chamber of restricting element (2), and differential pressure transmitter (5) connects three valve groups (4); It is characterized in that: also comprise purge circuit; Two arms (N1 and N2) of the parallel connection that said purge circuit is told by a house steward who is connected with source of the gas (N) and from house steward (N) are formed; Said first arm (N1) is connected to the forward voltage diode of measuring pipeline (3); Said second arm (N2) is connected to the negative pressure pipe of measuring pipeline (3), and said first arm (N1) is provided with the 4th solenoid valve (6-4), and said second arm (N2) is provided with the 5th solenoid valve (6-5); The forward voltage diode of said measurement pipeline (3) is provided with first solenoid valve (6-1); The negative pressure pipe of said measurement pipeline (3) is provided with second solenoid valve (6-2), is connected to connecting pipe (N3) between the forward voltage diode of said measurement pipeline (3) and the negative pressure pipe, and said connecting pipe (N3) is provided with the 3rd solenoid valve (6-3).
2. converter gas flowmeter automatic blowout device as claimed in claim 1; It is characterized in that: said first solenoid valve (6-1) is connected on first arm (N1) and measures on the forward voltage diode of contact and the measurement pipeline (3) between the three valve groups (4) of pipeline forward voltage diode; Said second solenoid valve (6-2) is connected on second arm (N2) and measures on the negative pressure pipe of contact and the measurement pipeline (3) between the three valve groups (4) of pipeline negative pressure pipe, and said connecting pipe (N3) is connected between first solenoid valve (6-1) and second solenoid valve (6-2) and the three valve groups (4) and measures on the pipeline (3).
3. according to claim 1 or claim 2 converter gas flowmeter automatic blowout device, it is characterized in that: said source of the gas is a source nitrogen.
4. the control method of claim 1 or 2 said converter gas flowmeter automatic blowout devices is characterized in that: carry out according to the following steps:
During the (1) converter tapping, open the 3rd solenoid valve (6-3), close first solenoid valve (6-1) and second solenoid valve (6-2), the 4th solenoid valve (6-4) and the 5th solenoid valve (6-5) are opened in pulse, and pulse purges and finishes back entering next step;
(2) closes the 4th solenoid valve (6-4) and the 5th solenoid valve (6-5), opens first solenoid valve (6-1) and second solenoid valve (6-2), closes the 3rd solenoid valve (6-3), returns step (4) when waiting next time converter tapping, and circulation is carried out.
5. the control method of converter gas flowmeter automatic blowout device as claimed in claim 4 is characterized in that: said pulse purges and is specially: solenoid valve opens 3-6 second and cuts out 8-12 second is that pulsatile once purges, and purges 40-60 time altogether.
6. like the control method of claim 4 or 5 described converter gas flowmeter automatic blowout devices, it is characterized in that: said pulse source purge gas is a nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102853885A CN102778264A (en) | 2012-08-10 | 2012-08-10 | Automatic blowing device of converter flue gas flowmeter and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102853885A CN102778264A (en) | 2012-08-10 | 2012-08-10 | Automatic blowing device of converter flue gas flowmeter and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102778264A true CN102778264A (en) | 2012-11-14 |
Family
ID=47123258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102853885A Pending CN102778264A (en) | 2012-08-10 | 2012-08-10 | Automatic blowing device of converter flue gas flowmeter and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102778264A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4879912A (en) * | 1988-03-08 | 1989-11-14 | J. M. Huber Corporation | Unitized instrument manifold |
| DE19954217A1 (en) * | 1999-11-11 | 2001-06-21 | Judo Wasseraufbereitung | Water meter with pre-filter; has reverse flow device, where water flows through filter, then through water meter, and back through water filters, before being passed to drain channel |
| CN1995927A (en) * | 2006-12-08 | 2007-07-11 | 鞍钢股份有限公司 | Blasting type back flushing method |
| CN201561772U (en) * | 2009-12-11 | 2010-08-25 | 冯磊 | Self-cleaning type gas flow device |
| CN202041249U (en) * | 2011-03-02 | 2011-11-16 | 蔡玮凤 | Intelligent full-automatic reverse-blowing anti-blocking detection device |
| CN202956160U (en) * | 2012-08-10 | 2013-05-29 | 南京钢铁股份有限公司 | Automatic sweeping device of converter smoke flowmeter |
-
2012
- 2012-08-10 CN CN2012102853885A patent/CN102778264A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4879912A (en) * | 1988-03-08 | 1989-11-14 | J. M. Huber Corporation | Unitized instrument manifold |
| DE19954217A1 (en) * | 1999-11-11 | 2001-06-21 | Judo Wasseraufbereitung | Water meter with pre-filter; has reverse flow device, where water flows through filter, then through water meter, and back through water filters, before being passed to drain channel |
| CN1995927A (en) * | 2006-12-08 | 2007-07-11 | 鞍钢股份有限公司 | Blasting type back flushing method |
| CN201561772U (en) * | 2009-12-11 | 2010-08-25 | 冯磊 | Self-cleaning type gas flow device |
| CN202041249U (en) * | 2011-03-02 | 2011-11-16 | 蔡玮凤 | Intelligent full-automatic reverse-blowing anti-blocking detection device |
| CN202956160U (en) * | 2012-08-10 | 2013-05-29 | 南京钢铁股份有限公司 | Automatic sweeping device of converter smoke flowmeter |
Non-Patent Citations (2)
| Title |
|---|
| 周吉成: "焦炉煤气的计量及改进措施", 《燃料与化工》 * |
| 李学红: "流量测量管线自动吹扫实践浅析", 《企业家天地下半月刊》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104359661B (en) | universal valve performance test device | |
| CN201666807U (en) | Device for preventing pressure pipe of transmitter meter from being blocked | |
| CN204085645U (en) | With the gas flow standard device of self calibration structure | |
| MX2011013233A (en) | Sensing events affecting liquid flow in a liquid distribution system. | |
| NO20093074L (en) | Apparatus and methods for allowing fluid flow internally in at least one filter and exterior of a tube disposed in a wellbore | |
| BR112012013584A2 (en) | flowmeter and method | |
| NO20084284L (en) | Apparatus and method for a hydrocarbon production plant | |
| MY171964A (en) | System and method for detecting leakage in a gas pipeline | |
| CN202956160U (en) | Automatic sweeping device of converter smoke flowmeter | |
| CN201434861Y (en) | Calibration gas control device of smoke online monitoring system | |
| CN102778264A (en) | Automatic blowing device of converter flue gas flowmeter and control method thereof | |
| CN203443620U (en) | Smoke measuring device | |
| CN109681187B (en) | System and method for measuring single-hole gas micro-flow of coal seam based on accumulation principle | |
| CN203857272U (en) | Automatic switching control device of CO2 gas supply flow meter | |
| CN202599631U (en) | Gas leakage detection system | |
| CN203773804U (en) | Fluid resistance determining experiment apparatus | |
| CN202484594U (en) | Precooling device for liquid-nitrogen transmission branch line | |
| CN203929315U (en) | A kind of gun barrel formula Antichoking blast pressure sampling control system | |
| CN205719446U (en) | A kind of gas meter, flow meter seals assay device | |
| CN103133869B (en) | Corrosion-resistant draining hole device capable of being adjusted continuously and calibrated on line in real time | |
| CN202823994U (en) | Multipoint continuous pulsating dust-cleaning system | |
| CN213515801U (en) | Purging system of uniform-velocity tube flowmeter | |
| CN205843735U (en) | A kind of ultrasonic flowmeter drain tap system | |
| CN204265738U (en) | A kind of fermentor tank air exhaust muffler device | |
| RU2013119493A (en) | CONTINUOUS PURGE SYSTEM (OPTIONS) AND METHOD FOR PREVENTING WATER INJURY TO HEAD PIPELINES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |