CN2318228Y - Blast-furnace tuyere small leak detector - Google Patents
Blast-furnace tuyere small leak detector Download PDFInfo
- Publication number
- CN2318228Y CN2318228Y CN 97205566 CN97205566U CN2318228Y CN 2318228 Y CN2318228 Y CN 2318228Y CN 97205566 CN97205566 CN 97205566 CN 97205566 U CN97205566 U CN 97205566U CN 2318228 Y CN2318228 Y CN 2318228Y
- Authority
- CN
- China
- Prior art keywords
- furnace tuyere
- tuyere small
- blast
- blast furnace
- small sleeve
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 238000009529 body temperature measurement Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012625 in-situ measurement Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Abstract
The utility model discloses a small cover leak detector for a blast-furnace tuyere. Temperature measurement elements which are used for monitoring the leak and the damage of a small cover are respectively arranged on a water inlet pipelines and a water outlet pipeline of the small cover for the blast furnace tuyere. Compared with a flow type monitoring structure, the utility model has the advantages of high sensitivity and low false alarm rate.
Description
The utility model belongs to blast furnace, and especially the air port leak detection assembly is made the field.
Tuyere small sleeve is the sandwich structure of trumpet type.The air port that is used for blast furnace is connected with flowing water between its interlayer, and (flow to by water inlet pipe, rising pipe flows out), this flowing water has two aspect effects: the young cover of one side cooling air, and avoid it to damage because of high temperature; Be by observation on the other hand, people understood frequently check whether little cover damages flowing water.When little cover was harmless, it was almost consistent to import and export flow; When little cover damaged, flowing water will be in the stove internal leakage, and at this moment, the monitoring under meter that is contained in little cover water inlet pipe and water outlet pipe will monitor the difference in flow of importing and exporting pipeline, and in view of the above, the difference in flow of user by little cover water inlet pipe and water outlet pipe changes judges whether tuyere small sleeve damages leakage.But this leak detection assembly of monitoring the blast-furnace tuyere leakage with difference in flow, when reality is used, because of flowmeter survey error too big (as Baosteel one, two, three blast furnaces and horse steel 2500 blast furnaces), its rate of false alarm is reached more than 70%, lost the effect of monitoring, alarming basically.
The purpose of this utility model is a kind of blast furnace tuyere small sleeve leak detection assembly of design, makes it to overcome the above shortcoming of prior art, has the monitoring accuracy height, the superperformance that rate of false alarm is little.
The utility model purpose is to realize by following design.
A kind of blast furnace tuyere small sleeve leak detection assembly on the inlet and outlet pipe of blast furnace tuyere small sleeve, is respectively arranged with the monitor that is used to monitor little cover leakage loss, and described monitor is a temperature element.
After having adopted design as above, under normal operation, the Inlet and outlet water temperature difference T of tuyere small sleeve water coolant one stablizes a ℃, the a value is subjected to temperature variation and water inlet pipe and water outlet pipe water temperature in the blast furnace, flow is big or small and certain variation is arranged, but it is very little to fluctuate, according in situ measurement, usually at 0～2 ℃.In case but tuyere small sleeve leaks, the coal gas of high temperature in the blast furnace will seal in water coolant by leakage area, makes violent rising of its water temperature reach 7～10 ℃.Therefore, can judge that whether tuyere small sleeve leaks, and reaches the purpose of monitoring, alarming by the consequent obvious temperature difference between water inlet pipe and water outlet pipe.
Description of drawings is as follows.
Fig. 1 is a sectional view of the present utility model.
Below in conjunction with accompanying drawing structure of the present utility model is described in further detail.
1 is blast furnace tuyere small sleeve, is sandwich structure, and flowing water flows out through rising pipe 3 in the little cover 1 of water inlet pipe 2 inputs again, on water inlet pipe 2 and rising pipe 3 temperature element is set respectively.In this example, temperature element is a thermistor 4,5, under normal operation, the temperature head Δ T that resistance is 4,5 is the less a value of a fluctuation, when little cover damages, has to leak when taking place, furnace high-temperature coal gas seals in water coolant by leakage area, the temperature approach b of 4,5 of resistance and a value are produced than big-difference, thus, the service condition that can come the dynamic monitoring tuyere small sleeve by this secondary temperature element.
The installation site of temperature element 4,5 is more flexible, both can be connected near the air port, also can be connected on the far-end extension of water inlet pipe and water outlet pipe.
Claims (2)
1, a kind of blast furnace tuyere small sleeve leak detection assembly on the inlet and outlet pipe of blast furnace tuyere small sleeve, is respectively arranged with the monitor that is used to monitor little cover leakage loss, it is characterized in that, described monitor is a temperature element.
2, blast furnace tuyere small sleeve leak detection assembly according to claim 1 is characterized in that, described temperature element is thermistor (4,5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205566 CN2318228Y (en) | 1997-12-08 | 1997-12-08 | Blast-furnace tuyere small leak detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205566 CN2318228Y (en) | 1997-12-08 | 1997-12-08 | Blast-furnace tuyere small leak detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2318228Y true CN2318228Y (en) | 1999-05-12 |
Family
ID=33925767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205566 Expired - Fee Related CN2318228Y (en) | 1997-12-08 | 1997-12-08 | Blast-furnace tuyere small leak detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2318228Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422494C (en) * | 1999-02-12 | 2008-10-01 | 石淳民 | Multi-barrel anti-testing lock using elastic ball |
| CN112458222A (en) * | 2020-10-30 | 2021-03-09 | 江阴兴澄特种钢铁有限公司 | Blast furnace tuyere small sleeve leakage detection device and leakage detection method |
-
1997
- 1997-12-08 CN CN 97205566 patent/CN2318228Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422494C (en) * | 1999-02-12 | 2008-10-01 | 石淳民 | Multi-barrel anti-testing lock using elastic ball |
| CN112458222A (en) * | 2020-10-30 | 2021-03-09 | 江阴兴澄特种钢铁有限公司 | Blast furnace tuyere small sleeve leakage detection device and leakage detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |