CN110129515A - A kind of oxygen rifle system stagnation pressure measuring device and method - Google Patents
A kind of oxygen rifle system stagnation pressure measuring device and method Download PDFInfo
- Publication number
- CN110129515A CN110129515A CN201910591993.7A CN201910591993A CN110129515A CN 110129515 A CN110129515 A CN 110129515A CN 201910591993 A CN201910591993 A CN 201910591993A CN 110129515 A CN110129515 A CN 110129515A
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- Prior art keywords
- oxygen
- pressure
- oxygen rifle
- rifle
- equivalent
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Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 143
- 239000001301 oxygen Substances 0.000 title claims abstract description 143
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000008602 contraction Effects 0.000 claims abstract description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 38
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 8
- 238000009530 blood pressure measurement Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of oxygen rifle system stagnation pressure measuring device and methods, belong to iron and steel smelting technology field.The present invention includes oxygen general pipeline, the oxygen general pipeline is connected with oxygen manifold, pressure point is provided in the oxygen manifold, the output end of oxygen manifold is connected with oxygen hose, and the output end of the oxygen hose is connected with oxygen rifle, and one end of the oxygen rifle is oxygen rifle end, oxygen rifle end is equipped with equivalent aditus laryngis, the equivalent aditus laryngis is made of cylindrical tube and taper contraction section, and the side wall of cylindrical tube offers pressure port, and pressure port is connected with master gauge by pipeline.The present invention is on the basis of duct pressure loss measures, the relationship of pressure and stagnation pressure before spray head at pressure point is determined according to corresponding spray head parameter, condition calculating, for the design of amendment oxygen lance nozzle and determine that the operating pressure of oxygen rifle provides foundation, optimization oxygen supply slagging regime, promotes economic and technical norms.
Description
Technical field
The present invention relates to iron and steel smelting technology fields, measure and fill more specifically to a kind of oxygen rifle system stagnation pressure
It sets and method.
Background technique
The oxygen supply of converter top is the main method for making steel in the world today, and oxygen supply slag making is one of converter smelting core technology, oxygen rifle
Spray head rationally designs and application is its important foundation.In oxygen top blown converter steel making, oxygen supply by lance system is by oxygen general pipeline, branch
The composition such as pipe pressure transmitter, branch hook gauge, pressure point, regulating valve, repid cut-off valve, oxygen hose, oxygen rifle, oxygen lance nozzle
Welding is mounted on oxygen rifle end, after spray head throat area determines, oxygen flow be by repid cut-off valve near pressure point
Locate pressure P control.The spray head that oxygen flows through oxygen hose, oxygen rifle inner tube to oxygen rifle end is installed sprays.Oxygen rifle end sprayer
Inlet stagnation pressure is the important parameter of oxygen lance nozzle design, application, it determines the initial shape of oxygen jet.It is primarily present
Following problem: under practical part, due to being restricted by conditions, the stagnation pressure before spray head can not be measured directly, with fast when smelting
Pressure P carries out operation control at pressure point near fast stop valve, due to the influence of voltage loss and oxygen gas flow rate, different
Pressure range, it is unknown whether the stagnation pressure P of oxygen rifle end sprayer inlet meets design requirement.
Summary of the invention
1. technical problems to be solved by the inivention
In view of the defects existing in the prior art with deficiency, the present invention provides a kind of oxygen rifle system stagnation pressure measuring devices
And method, the present invention determine pressure point according to corresponding spray head parameter, condition calculating on the basis of duct pressure loss measures
Locate the relationship of pressure with stagnation pressure before spray head, for the design of amendment oxygen lance nozzle and determine that the operating pressure of oxygen rifle provides foundation,
Optimization oxygen supply slagging regime, promotes economic and technical norms.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of oxygen rifle system stagnation pressure measuring device of the invention, including oxygen general pipeline, the oxygen general pipeline's is defeated
Outlet is connected with oxygen manifold, and regulating valve, repid cut-off valve and pressure point are disposed on the pipeline of the oxygen manifold,
Branch pipe pressure transmitter is connected at the point of pressure point, one end of branch pipe pressure transmitter is connected with branch hook gauge, described
The output end of oxygen manifold be connected with oxygen hose, the output end of oxygen hose is connected with oxygen rifle, one end of the oxygen rifle
For oxygen rifle end, oxygen rifle end is equipped with equivalent aditus laryngis, and the equivalent aditus laryngis is made of cylindrical tube and taper contraction section, cone
The bottom end of shape contraction section offers outlet, and the side wall of cylindrical tube offers pressure port, and the pressure port is connected by pipeline
There is master gauge.
Further, the inside of the oxygen rifle is oxygen rifle inner tube, and the inside and outside diameter of oxygen rifle inner tube and cylindrical tube is right respectively
Answer identical, oxygen rifle inner tube is fixedly welded with cylindrical tube.
Further, the oxygen general pipeline on oxygen manifold pipeline regulating valve, repid cut-off valve and oxygen it is soft
Pipe is sequentially connected in series.
A kind of oxygen rifle system stagnation pressure measurement method, the steps include:
Step 1: equivalent aditus laryngis is fixed on oxygen rifle end, measuring medium selects nitrogen, and equivalent aditus laryngis is placed in oxygen
Rifle nitrogen sealing part；
Step 2: the stagnation pressure of the pressure hole location of equivalent aditus laryngis is measured by master gauge, is denoted as P0；
Step 3: by the pressure at branch pipe gauge measurement pressure measurement points, it is denoted as P1；
Step 4: aperture, adjusting work pressure P1 or nitrogen flow are adjusted by regulating valve；
Step 5: it is after pressure stabilisation, while P0 and P1 are read, the pressure difference of P0 and P1 are denoted as the pressure loss Δ of oxygen rifle
P；
Step 6: function regression Δ P=f (P1), i.e. P0=P1-f (P1) are passed through with the obtained test result of nitrogen
The amendment of the severe of nitrogen and oxygen obtains the duct pressure loss of oxygen, and adjusted coefficient K is the severe of two kinds of gas, then P0=
P1-Kf (P1)=P1-Kf (P1)=P1-1.1432 × f (P1).
Further, the step four, the number of adjusting work pressure P1 are no less than five times, and P1 value is no less than five
It is a.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, have the following beneficial effects:
The present invention determines pressure according to corresponding spray head parameter, condition calculating on the basis of duct pressure loss measures
The relationship of stagnation pressure before point place pressure P1 and spray head, for the design of amendment oxygen lance nozzle and determining oxygen rifle operating pressure provide according to
According to measuring the relationship to determine stagnation pressure (P0) before operating pressure (P1) and spray head, optimization by duct pressure loss (Δ P)
Slagging regime is supplied oxygen, economic and technical norms are promoted.
Detailed description of the invention
Fig. 1 is measuring principle figure of the invention；
Fig. 2 is local connection effect figure of the invention；
Fig. 3 is equivalent aditus structure figure of the invention.
In figure: 1, oxygen general pipeline；2, branch pipe pressure transmitter；3, branch hook gauge；4, pressure point；5, regulating valve；6, fast
Fast stop valve；7, oxygen hose；8, oxygen rifle；81, oxygen rifle inner tube；9, oxygen rifle end；10, master gauge；11, equivalent aditus laryngis；
111, cylindrical tube；112, taper contraction section；113, it exports；114, pressure port；12, oxygen manifold.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples:
Embodiment 1
It will be seen from figure 1 that a kind of oxygen rifle system stagnation pressure measuring device of the present embodiment, including oxygen general pipeline 1, oxygen
The output end of gas general pipeline 1 is connected with oxygen manifold 12, and regulating valve 5, quickly cutting are disposed on the pipeline of oxygen manifold 12
Valve 6 and pressure point 4 are connected with branch pipe pressure transmitter 2 at the point of pressure point 4, and one end of branch pipe pressure transmitter 2 is connected with
Branch hook gauge 3, the output end of oxygen manifold 12 are connected with oxygen hose 7, the tune on oxygen general pipeline 1 and 12 pipeline of oxygen manifold
Section valve 5, repid cut-off valve 6 and oxygen hose 7 are sequentially connected in series, and the output end of oxygen hose 7 is connected with oxygen rifle 8, and the one of oxygen rifle 8
End is oxygen rifle end 9, and oxygen rifle end 9 is equipped with equivalent aditus laryngis 11, and equivalent aditus laryngis 11 is by cylindrical tube 111 and taper contraction section
112 compositions, the bottom end of taper contraction section 112 offer outlet 113, and the side wall of cylindrical tube 111 offers pressure port 114, takes
Pressure hole 114 is connected with master gauge 10 by pipeline, and the inside of oxygen rifle 8 is oxygen rifle inner tube 81, oxygen rifle inner tube 81 and cylindrical drum
The inside and outside diameter of body 111 respectively corresponds identical, and oxygen rifle inner tube 81 is fixedly welded with cylindrical tube 111.
A kind of oxygen rifle system stagnation pressure measurement method, the steps include:
Step 1: equivalent aditus laryngis 11 is fixed on oxygen rifle end 9, measuring medium selects nitrogen, and equivalent aditus laryngis 11 is put
It is placed in 8 nitrogen sealing part of oxygen rifle；
Step 2: the stagnation pressure at 114 position of pressure port of equivalent aditus laryngis 11 is measured by master gauge 10, is denoted as
P0；
Step 3: the pressure at 4 position of pressure point is measured by branch hook gauge 3, is denoted as P1；
Step 4: adjusting aperture, adjusting work pressure P1 or nitrogen flow by regulating valve 5, adjusting work pressure P1's
Number is no less than five times, and P1 value is no less than five, can take 25%, 50%, 75%, 100%, the 125% of operating pressure respectively；
Step 5: it is after pressure stabilisation, while P0 and P1 are read, the pressure difference of P0 and P1 are denoted as the pressure loss of oxygen rifle 8
ΔP；
Step 6: function regression Δ P=f (P1), i.e. P0=P1-f (P1) are passed through with the obtained test result of nitrogen
The amendment of the severe of nitrogen and oxygen obtains the duct pressure loss of oxygen, and adjusted coefficient K is the severe of two kinds of gas, then P0=
P1-Kf (P1)=P1-Kf (P1)=P1-1.1432 × f (P1).
From Fig. 2-3 as can be seen that 111 internal-and external diameters of cylindrical tube are denoted as Ф 3 and Ф 4 respectively, oxygen rifle inner tube 81 it is inside and outside
Diameter is denoted as Ф 1 and Ф 2 respectively, and 111 internal-and external diameters of cylindrical tube are determined by oxygen rifle inner tube 81, Ф 1=Ф 3, Ф 2=Ф 4,
The diameter of outlet 113 is denoted as Ф 6, Ф 6=2 × (A/ π)1/2, wherein A is the sum of each hole throat area of 8 spray head of oxygen rifle.
112 height of taper contraction section is denoted as L4, and thickness is denoted as t2, and L4 is the 0.30- of 111 outer diameter Ф 4 of cylindrical tube
0.50 times, t2 is 0-5mm thicker than cylindrical tube 111, and 11 total length of equivalent aditus laryngis is denoted as L1, is 0.8-1.5 times of 8 outer diameter of oxygen rifle,
Pressure port 114 is denoted as L2 away from 113 levels of outlet, and L2 is 0.4-0.6 times of total length L 1, and 114 diameter of pressure port is denoted as Ф
5, it is determined according to the pipeline diameter of master gauge 10, equivalent aditus laryngis 11 can make of steel material, it is also possible to other metal materials
Matter.
The present invention determines quickly on the basis of duct pressure loss measures according to corresponding spray head parameter, condition calculating
The relationship of pressure P1 and stagnation pressure before spray head at pressure point 4 near stop valve 6, for amendment 8 sprinkler design of oxygen rifle and determination
The operating pressure of oxygen rifle 8 provides foundation, measured by duct pressure loss (Δ P) determine operating pressure (P1) with it is stagnant before spray head
The only relationship of pressure (P0), optimization oxygen supply slagging regime, promotes economic and technical norms.
Specific embodiment is as follows, selects 300 tons of converter oxygen gun systems,
Oxygen rifle 8 gun body outer diameter 355.6mm, throat diameter 47.0mm, 6 holes, Mach number 2.05 design stagnation pressure P0=
0.8572MPa, 81 internal-and external diameter of oxygen rifle inner tube are respectively 220mm, 236mm, and the inside and outside diameter of cylindrical tube 111 is according to oxygen rifle inner tube 81
It determines, Ф 1=Ф 3=220mm, Ф 2=Ф 4=236mm；The diameter Ф 6 of outlet 113 passes through public affairs according to 8 spray head parameter of oxygen rifle
Formula, which calculates, to be determined: Ф 6=2 × (A/ π)1/2=2 × (6 × 47 × 47/4 × π/π)1/2=115mm；112 height of taper contraction section
L4 is 84mm；Thickness t2 is 12mm；11 total length L 1 of equivalent aditus laryngis is 350mm；Pressure port 114 is away from 113 level L2 of outlet
For 160mm, 114 diameter 60mm of pressure port；11 material of equivalent aditus laryngis is Q235.
Stagnation pressure P0 at pressure port 114 is measured by master gauge 10, pressure point 4 is measured by branch hook gauge 3
Locate pressure P1, adjusted in control room by 5 aperture of regulating valve, adjusting work pressure P1 or flow are after pressure stabilisation, read simultaneously
Take P1 and P0, the difference P1-P0 of two pressure, as oxygen rifle pressure loss Δ P.
Measurement data is as follows:
| Nitrogen flow/(m3.h-1) | P1/MPa | P0/MPa | ΔP/MPa |
| 65000 | 1.140 | 1.100 | 0.040 |
| 61000 | 1.080 | 1.050 | 0.030 |
| 59000 | 1.040 | 1.000 | 0.040 |
| 54000 | 0.950 | 0.915 | 0.035 |
| 39000 | 0.650 | 0.620 | 0.030 |
| 12000 | 0.130 | 0.125 | 0.005 |
By measurement data, under nitrogen medium, function regression Δ P=0.022 × P1+0.0156, i.e. P0=0.978 ×
P1-0.0156；
The form that gas flows through the local resistance loss calculation formula of pipeline is identical, and coefficient of partial resistance is then because of the tool of pipeline
Body situation is different, and for same pipeline, when gas flow rate is identical, fricting resistance loss and local resistance loss are all only and gas
Severe is related, with the obtained test result of nitrogen, corrects by the severe of nitrogen and oxygen, obtains the duct pressure loss of oxygen,
Its adjusted coefficient K is the severe of two kinds of gas, then P0=P1-Kf (P1)=P1-Kf (P1)=0.9748 × P1-0.0178.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (5)
1. a kind of oxygen rifle system stagnation pressure measuring device, including oxygen general pipeline (1), it is characterised in that: the oxygen general pipeline
(1) output end is connected with oxygen manifold (12), be disposed on the pipeline of the oxygen manifold (12) regulating valve (5),
Repid cut-off valve (6) and pressure point (4) are connected with branch pipe pressure transmitter (2) at the point of pressure point (4), and branch pipe pressure becomes
One end of device (2) is sent to be connected with branch hook gauge (3), the output end of the oxygen manifold (12) is connected with oxygen hose (7),
The output end of oxygen hose (7) is connected with oxygen rifle (8), and one end of the oxygen rifle (8) is oxygen rifle end (9), oxygen rifle end (9)
It is equipped with equivalent aditus laryngis (11), the equivalent aditus laryngis (11) is made of cylindrical tube (111) and taper contraction section (112), cone
The bottom end of shape contraction section (112) offers outlet (113), and the side wall of cylindrical tube (111) offers pressure port (114), described
Pressure port (114) master gauge (10) are connected with by pipeline.
2. a kind of oxygen rifle system stagnation pressure measuring device according to claim 1, it is characterised in that: the oxygen rifle
(8) inside is oxygen rifle inner tube (81), and oxygen rifle inner tube (81) and the inside and outside diameter of cylindrical tube (111) respectively correspond identical, oxygen rifle
Inner tube (81) is fixedly welded with cylindrical tube (111).
3. a kind of oxygen rifle system stagnation pressure measuring device according to claim 1, it is characterised in that: the oxygen is total
Pipe (1) is sequentially connected in series with regulating valve (5), repid cut-off valve (6) and the oxygen hose (7) on oxygen manifold (12) pipeline.
4. a kind of oxygen rifle system stagnation pressure measurement method, it is characterised in that: the steps include:
Step 1: equivalent aditus laryngis (11) is fixed on oxygen rifle end (9), and measuring medium selects nitrogen, and by equivalent aditus laryngis (11)
It is placed in oxygen rifle (8) nitrogen sealing part；
Step 2: pass through the stagnation pressure at pressure port (114) position of master gauge (10) measurement equivalent aditus laryngis (11), note
For P0；
Step 3: the pressure at pressure point (4) position is measured by branch hook gauge (3), is denoted as P1；
Step 4: aperture, adjusting work pressure P1 or nitrogen flow are adjusted by regulating valve (5)；
Step 5: it is after pressure stabilisation, while P0 and P1 are read, the pressure difference of P0 and P1 are denoted as the pressure loss Δ of oxygen rifle (8)
P；
Step 6: function regression Δ P=f (P1), i.e. P0=P1-f (P1), with the obtained test result of nitrogen, by nitrogen with
The severe of oxygen is corrected, and the duct pressure loss of oxygen is obtained, and adjusted coefficient K is the severe of two kinds of gas, then P0=P1-Kf
(P1)=P1-Kf (P1)=P1-1.1432 × f (P1).
5. a kind of oxygen rifle system stagnation pressure measurement method according to claim 4, it is characterised in that: the step
Four, the number of adjusting work pressure P1 is no less than 5 times, and P1 value is no less than 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910591993.7A CN110129515A (en) | 2019-07-02 | 2019-07-02 | A kind of oxygen rifle system stagnation pressure measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910591993.7A CN110129515A (en) | 2019-07-02 | 2019-07-02 | A kind of oxygen rifle system stagnation pressure measuring device and method |
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| Publication Number | Publication Date |
|---|---|
| CN110129515A true CN110129515A (en) | 2019-08-16 |
Family
ID=67566590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910591993.7A Pending CN110129515A (en) | 2019-07-02 | 2019-07-02 | A kind of oxygen rifle system stagnation pressure measuring device and method |
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| Country | Link |
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| CN (1) | CN110129515A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736581A (en) * | 2019-09-17 | 2020-01-31 | 北京科技大学 | method and system for measuring pressure loss of converter oxygen lance pipeline |
| CN112708721A (en) * | 2020-09-23 | 2021-04-27 | 钢铁研究总院 | Device and method for testing pressure loss of converter oxygen lance pipeline |
| CN114485758A (en) * | 2021-12-30 | 2022-05-13 | 钢铁研究总院 | Valve group instrument detection device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2656428Y (en) * | 2003-03-31 | 2004-11-17 | 宝山钢铁股份有限公司 | Oxygen gun spray head for converter |
| CN2740619Y (en) * | 2004-11-09 | 2005-11-16 | 刘延春 | Nozzle of refined oxygen gun |
| WO2012136698A1 (en) * | 2011-04-06 | 2012-10-11 | Sms Siemag Ag | Method for operating at least one supersonic nozzle in a metallurgical vessel, method for determining a pressure loss and system for determining operating parameters of at least one supersonic nozzle |
| CN205473866U (en) * | 2016-04-11 | 2016-08-17 | 唐山钢铁集团有限责任公司 | Can rectify gas flow's oxygen rifle on line |
| CN210163476U (en) * | 2019-07-02 | 2020-03-20 | 马鞍山钢铁股份有限公司 | Stagnation pressure measuring device of oxygen lance system |
-
2019
- 2019-07-02 CN CN201910591993.7A patent/CN110129515A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2656428Y (en) * | 2003-03-31 | 2004-11-17 | 宝山钢铁股份有限公司 | Oxygen gun spray head for converter |
| CN2740619Y (en) * | 2004-11-09 | 2005-11-16 | 刘延春 | Nozzle of refined oxygen gun |
| WO2012136698A1 (en) * | 2011-04-06 | 2012-10-11 | Sms Siemag Ag | Method for operating at least one supersonic nozzle in a metallurgical vessel, method for determining a pressure loss and system for determining operating parameters of at least one supersonic nozzle |
| CN205473866U (en) * | 2016-04-11 | 2016-08-17 | 唐山钢铁集团有限责任公司 | Can rectify gas flow's oxygen rifle on line |
| CN210163476U (en) * | 2019-07-02 | 2020-03-20 | 马鞍山钢铁股份有限公司 | Stagnation pressure measuring device of oxygen lance system |
Non-Patent Citations (1)
| Title |
|---|
| 李贵昌;张德仁;: "25t转炉氧枪管道阻损测定" * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736581A (en) * | 2019-09-17 | 2020-01-31 | 北京科技大学 | method and system for measuring pressure loss of converter oxygen lance pipeline |
| CN112708721A (en) * | 2020-09-23 | 2021-04-27 | 钢铁研究总院 | Device and method for testing pressure loss of converter oxygen lance pipeline |
| CN114485758A (en) * | 2021-12-30 | 2022-05-13 | 钢铁研究总院 | Valve group instrument detection device and method |
| CN114485758B (en) * | 2021-12-30 | 2022-11-15 | 钢铁研究总院 | Valve group instrument detection device and method |
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Application publication date: 20190816 |