CN1084220A - Method for detecting leakage of blast furnace soft water sealed circulation cooling system - Google Patents
Method for detecting leakage of blast furnace soft water sealed circulation cooling system Download PDFInfo
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- CN1084220A CN1084220A CN 92107751 CN92107751A CN1084220A CN 1084220 A CN1084220 A CN 1084220A CN 92107751 CN92107751 CN 92107751 CN 92107751 A CN92107751 A CN 92107751A CN 1084220 A CN1084220 A CN 1084220A
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- blast furnace
- cooling system
- soft water
- circulation cooling
- differential pressure
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Abstract
The invention discloses a kind of leak hunting method of blast furnace soft water closed circulation cooling system.Mainly be to utilize a kind of combined type easy and simple to handle probe to detect the gentle current pressure reduction of saliva, convert the electrical signal of standard to, can judge whether to take place to leak or steam binding by temperature transmitter and differential pressure device.That present method has is accurate, easy, wide accommodation, be not afraid of advantages such as vibration and electromagnetic interference, utilizes present method can prolong the work-ing life of blast furnace cooling apparatus greatly.
Description
The invention belongs to blast-furnace equipment refrigerative plumbing technical field and be specifically related to a kind of blast-furnace soft water sealing and circulating, cooling system leak hunting method.
Blast-furnace equipment adopts the cooling of soft water sealing and circulating, can eliminate fouling, improves cooling performance, is the effective measure that prolong equipment life and blast furnace length of service, can also save a large amount of waters simultaneously, reduces energy consumption, reduces cost, and is particularly bigger to the water-deficient area meaning.Therefore, the blast-furnace soft water sealing and circulating is cooled off as a new technology, at home and abroad widely uses.In a single day but cooling system leaks, and can not find early, and the serious threat blast furnace is produced, and causes enormous economic loss.Present domestic employing soft water refrigerative blast furnace is generally being gone into operation about half a year, just begins to occur the phenomenon of cooling system scaling loss, and therefore, the leak hunting technology of research and development blast furnace soft water closed circulation cooling system is just extremely urgent.Still not having suitable technical scheme before the present invention proposes addresses this problem.
The object of the present invention is to provide a kind of simple, accurate, easy to operate, adapt to the blast furnace severe environment and can distinguish the leak hunting method of the blast furnace soft water closed circulation cooling system that leaks omen.
Below in conjunction with the detailed in addition explanation of 1 pair of method of the present invention of accompanying drawing.Accompanying drawing 1 is the process flow sheet of this leak hunting method.
Leak hunting method of the present invention is mainly by combined probe (3), combined probe (3) is inserted in the tee pipe fitting (1) at the water export place that is installed in the cooling arm, go up an installation ball valve (2) at tee pipe fitting (1), combined probe (3) can insert under situation about not stopping production or extract.Micro platinum thermal resistance (4) is housed in this combined probe (3).The differential pressure signal of detected outlet water temperature signal of combined probe (3) and discharge is sent to computer respectively respectively and carries out data processing display result again after temperature transmitter (5) and differential pressure transmitter (7) convert standard electric signal (6) and (8) to.
Originally discover, when the discharge of outlet exceeds 15% than normal circumstances, show that this water pipe produces steam binding because of local superheating, this phenomenon is the omen of leaking; When outlet discharge reduces 15% than normal circumstances, show that this arm has the scaling loss leakage of a certain position, this will in time carry out art breading, in order to avoid accident enlarges.
After the gangway water temperature difference of each arm and discharge were measured, machine was handled as calculated, can obtain the thermal load of this water-cooled arm, and long-term superthermal load is the basic reason that causes the water-cooled tube scaling loss.
The combined probe that this leak hunting method adopted, movement-less part, therefore no electron device, is not afraid of vibration and electromagnetic interference, can adapt to the severe environment that blast furnace is produced.After adopting microcomputer, can in time obtain the various parameters of cooling system, carry out the warning of superthermal forecast and various faults, it is very convenient to operate.
Make it to illustrate further clear below in conjunction with embodiment on 2500 cubic metres of iron-smelting blast furnaces of certain factory, Fig. 2 is that certain factory 2500 cubic metres of iron-smelting blast furnace soft water airtight circulating cooling systems leak hunting method is implemented synoptic diagram.Wherein: (9) among Fig. 2 are water-cooled tube inlet house steward, (10) be the inlet water temperature survey meter, concerning each root cooling arm, inlet water temperature is identical, (11) be each cooling arm, (12) be each cooling stave of blast furnace, (13) be the water-cooled tube outlet header, (14) for being installed in the compound leak detection probe that respectively cools off the arm outlet, (15) be temperature transmitter and differential pressure transmitter case, (16) are the interface box of computer, and (17) are Industrial Control Computer, (18) be indicating meter, (19) are printer.
Claims (2)
1, a kind of method for detecting leakage of blast furnace soft water sealed circulation cooling system, it is characterized in that combined probe (3) is inserted in the tee pipe fitting (1) at the water export place that is installed in the cooling arm, at tee pipe fitting (1) ball valve (2) go up to be installed, the differential pressure signal of detected outlet water temperature signal of combined probe (3) and discharge is sent to computer respectively respectively and carries out data processing display result again after temperature transmitter (5) and differential pressure transmitter (7) convert standard electric signal (6) and (8) to.
2, leak hunting method according to claim 1 is characterized in that being equipped with in the combined probe (3) micro platinum thermal resistance (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107751 CN1084220A (en) | 1992-09-08 | 1992-09-08 | Method for detecting leakage of blast furnace soft water sealed circulation cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107751 CN1084220A (en) | 1992-09-08 | 1992-09-08 | Method for detecting leakage of blast furnace soft water sealed circulation cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1084220A true CN1084220A (en) | 1994-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92107751 Pending CN1084220A (en) | 1992-09-08 | 1992-09-08 | Method for detecting leakage of blast furnace soft water sealed circulation cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1084220A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052539C (en) * | 1992-08-28 | 2000-05-17 | 北京科技大学 | Leakage testing system and method for closed soft water cooling loop of blast furnace |
| CN101762364B (en) * | 2008-11-28 | 2011-08-03 | 五冶集团上海有限公司 | Airtightness testing method of ultra-long anneal furnace |
| CN102507110A (en) * | 2011-11-03 | 2012-06-20 | 云南新立有色金属有限公司 | Method for detecting leakage of cooling water for high titanium slag direct current closed electric furnace |
-
1992
- 1992-09-08 CN CN 92107751 patent/CN1084220A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052539C (en) * | 1992-08-28 | 2000-05-17 | 北京科技大学 | Leakage testing system and method for closed soft water cooling loop of blast furnace |
| CN101762364B (en) * | 2008-11-28 | 2011-08-03 | 五冶集团上海有限公司 | Airtightness testing method of ultra-long anneal furnace |
| CN102507110A (en) * | 2011-11-03 | 2012-06-20 | 云南新立有色金属有限公司 | Method for detecting leakage of cooling water for high titanium slag direct current closed electric furnace |
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