CN203498402U - Cooling wall water leakage detection device - Google Patents
Cooling wall water leakage detection device Download PDFInfo
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- CN203498402U CN203498402U CN201320478258.3U CN201320478258U CN203498402U CN 203498402 U CN203498402 U CN 203498402U CN 201320478258 U CN201320478258 U CN 201320478258U CN 203498402 U CN203498402 U CN 203498402U
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- dehydrator
- cooling
- water
- water leakage
- cooling stave
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Abstract
The utility model discloses a cooling wall water leakage detection device which is characterized by comprising a dehydrator, a degassing tank communicated with a backwater main pipe of a cooling wall, an exhaust gas component analysis PLC (programmable logic controller) control system connected with a control end of a dehydrator, a coal gas analyzer connected with an output end of the dehydrator, a data conversion and transmission module connected with a signal output end of the coal gas analyzer, and a computer connected with the data conversion and transmission module, wherein an input end of the dehydrator is communicated with an exhaust pipe of the degassing tank. In the device disclosed by the utility model, the exhaust pipeline of the degassing tank is connected with the coal gas analyzer, and the damage condition of the cooling system is judged by detecting the composition change of the separated gas; compared with the traditional water leakage detection method, the accuracy and real-time performance of the device are higher. Moreover, the detection process is simple and easy to operate, the detection period is short, and the production efficiency is guaranteed.
Description
Technical field
The utility model smelting iron and steel technical field, refers to a kind of cooling stave leakage inspector particularly.
Background technology
Cooling stave is the cooling major equipment of blast furnace, once leak, will directly affect blast furnace and normally produces, and accelerates the scorification of cooling stave simultaneously, and then affects blast furnace campaign.Therefore, how to check cooling stave leak source and solve the key that seepy question becomes the further optimization of current blast furnace productive capacity.In blast furnace, have the high-temp. furnace material such as raw material, coal gas, molten iron and slag to exist, blast furnace is produced the later stage, and after refractory lining brick corrodes and comes off, can be subject to declining furnace charge wearing and tearing and the rising coal gas of the cooling tube in cooling apparatus washes away, and then causes breakage.Document " Liu Peng, Song Yanmin etc., < < peace steel 2200m
3the reparation > > that blast furnace cooling stave leaks, metallurgical equipment management and maintenance, the 26th volume, the 1st phase in 2008 " in introduced by utilizing U-shaped pipe principle to carry out the method for cooling stave leak detection; concrete grammar is by a tubule of water inlet pipe place welding of the 1st layer of cooling stave; connect a transparent hose; make hose surpass the position of the 4th layer of cooling stave again; hose and cooling stave water pipe formation communicating vessels, be full of water conservancy and by water level, drop to where judge that one deck cooling stave leaks by the principle of communicating vessels.In document " Hu Dixin, the control > > of < < soft water airtight circulating cooling system, automated information ", introduced Baosteel at 4350m
3on carry out the measure of soft water system leak detection, in stove, gas pressure is higher than hydraulic pressure, when breakage occurs cooling stave, blast furnace gas is sneaked in recirculated water, in high heat load area, adopt on the one hand float switch action to report to the police, float switch is arranged on and on water shoot, traps the gas in pipeline, when the gas trapping is full of after air chamber, drive float to send contact point signal, the supplementary means detecting as breakage by detecting the changing conditions of cycle water pH value on the other hand.When furnace pressure is during lower than hydraulic pressure, the difference in flow producing by the magnetic flow meter being arranged in cooling apparatus water inlet pipe and water outlet pipe judges the damaged situation of water pipe, although magnetic flow meter adopts subsection setup, but it is very little that damaged water leakage is compared with the quantity of circulating water of the cooling apparatus of flowing through, require poor flow measurement precision higher, and require also higher for maintenance of the equipment.Document " Zhang Jingzhi etc., < < blast furnace soft water closed circulation cooling system leak hunting technology > >, iron and steel, in January, 1993 " in a kind of pressure difference signal and thermal resistance signal that utilizes blast furnace soft water closed circulation cooling system leak detection to measure with combined probe is provided, through differential pressure transmitter and temperature transmitter, convert standard electric signal to, then by intelligent type digital, show that flow thermometric instrument directly illustrates temperature and the data on flows of measuring soft water system, this methodic error is very large, limited by practical, pipe flow speed is parabolic distribution on the one hand, be difficult to determine mean flow rate, existing galvanic couple does not reach stable at all on the other hand, the long-time ability of measuring ± 0.1 ℃ of temperature difference, therefore the method cannot be promoted in practice.In document " Zhang Yu; < < blast furnace cooling system leaks and automatically examines the > > that traces back; Anshan iron and steel plant technology, 1 phase in 2000 ", provide a kind of method that changes to carry out soft water system leak detection by water temperature difference, fluctuations in discharge and water coolant pH value.In document " Ren Guihe; Zhou Wensheng; the damaged > > that checks of < < blast furnace soft water closed circulation system cools wall; Xinjiang iron and steel; the 3rd phase in 2012, total 123 phases ", introduced by observing pressure change, the pH value of soft water system and changed to carry out 2000m
3the leak detection of level blast furnace, and aux. pressure table is suppressed method, coal gas ignition method is confirmed the disrepair phenomenon that cooling stave exists, the shortcoming of this method is consuming time very long, generally needs about 18 days.
In sum, in domestic existing detection technique, adopted altogether following certain methods, at furnace pressure during lower than hydraulic pressure, adopt and measure variation in water pressure, water temperature difference changes, water coolant turnover fluctuations in discharge, the leak detection of cooling stave is carried out in the measures such as water coolant pH value variation, all there is a series of shortcoming in these methods, while wherein adopting hydrometry, pipe flow speed is parabolic distribution on the one hand, be difficult to determine mean flow rate, due to damaged water leakage, to compare with the quantity of circulating water of the cooling apparatus of flowing through be very little on the other hand, require poor flow measurement precision higher, and but for maintenance of the equipment, require also quite high.While adopting temperature head to measure, due to the monolithic cooling stave Inlet and outlet water temperature difference be often less than ± 0.1 ℃, existing measurement galvanic couple does not reach the ability of stable, the long-time measurement ± 0.1 ℃ temperature difference at all, therefore the method cannot be promoted in practice.While adopting tensimeter to suppress method, coal gas ignition method to hunt leak, need blast furnace staying, one, plot carry out leak detection work, and whole process wastes time and energy.While adopting pH value to measure, be difficult to continuous detecting, sampling, chemical examination and tracking are often consuming time very long.Although the pressure of blast furnace soft water closed circulation system is generally greater than furnace pressure at present, but when cooling stave pipe burst, in backwater, all can there is obvious bubble and gonorrhoea phenomenon, because soft water system is a kind of closed system, backwater is after getting back to degassing vessel, through degassed and combination treatment, enter the difference that is difficult to distinguish current after main current.
Utility model content
The purpose of this utility model will provide a kind of cooling stave leakage inspector exactly, and this device by connecting CO and CO on degassing vessel gas exhaust duct
2on-line detector table, the composition of deviating from gas by detection changes to judge the damaged condition of cooling system, has higher accuracy.
For realizing this object, the cooling stave leakage inspector that the utility model is designed, it is characterized in that: it comprises water trap, the degassing vessel being communicated with cooling stave return main, the emission gases composition analysis PLC(Programmable Logic Controller being connected with water trap control end, programmable logic controller) Controlling System, the gas analysis meter being connected with water trap output terminal, the data-switching and the transport module that are connected with the signal output part of gas analysis meter, the computer being connected with data-switching and transport module, wherein, the input terminus of described water trap is communicated with the vapor pipe of degassing vessel.
Further, described computer is connected with warning howler.
The utility model connects gas analysis meter on degassing vessel gas exhaust duct, and the composition of deviating from gas by detection changes to judge the damaged condition of cooling system, compares traditional detection method of leaking and has higher accuracy and stronger real-time.And the simple easy handling of testing process, sense cycle is short, has guaranteed production efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1-degassing vessel, 1.1-vapor pipe, 2-water trap, 3-emission gases composition analysis PLC Controlling System, 4-gas analysis meter, 5-data-switching and transport module, 6-computer, 7-warning howler.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
A kind of cooling stave leakage inspector of the present utility model, it is characterized in that: it comprises water trap 2, the degassing vessel 1, the emission gases composition analysis PLC Controlling System 3 being connected with water trap 2 control ends, the gas analysis meter 4 being connected with water trap 2 output terminals, the data-switching being connected with the signal output part of gas analysis meter 4 and the transport module 5 that are communicated with cooling stave return main, the computer 6 being connected with data-switching and transport module 5, wherein, the input terminus of described water trap 2 is communicated with the vapor pipe 1.1 of degassing vessel 1.
In technique scheme, computer 6 is connected with warning howler 7.
In technique scheme, degassing vessel 1, for removing cooling stave return main's gas, comprises the coal gas of water vapour, cooling wall breakage seepage etc., and by vapor pipe 1.1, above-mentioned gas is discharged.
In technique scheme, emission gases composition analysis PLC Controlling System 3 is controlled water trap 2 degassing vessel 1 expellant gas is carried out to processed, and control water trap 2 and by certain frequency, the gas after processing is sent to gas analysis meter 4 and adopts analysis, while emission gases composition analysis PLC Controlling System 3 is responsible for safeguarding that the gas transmission of sampling analysis pipeline is unimpeded.
In technique scheme, gas analysis meter 4 is for 2 expellant gas compositions of on-line analysis water trap.
In technique scheme, data-switching and transport module 5 are for uploading to the result of gasometry in the computer 6 of blast furnace master control room.
In technique scheme, in computer 6, be provided with oracle database and monitoring software, oracle database is used for depositing gasometry data, monitoring software is by utilizing the data of Real-time Collection, according to the threshold value of setting, carry out the judgement whether cooling stave leaks, and judged result is kept in oracle database.As the CO detecting and CO
2meet or exceed predefined threshold value and illustrate that cooling stave leaks.
In technique scheme, warning howler 7, for by sound, the monitoring data that surpasses threshold value being broadcast out, is informed blast furnace operating and managerial personnel.
The content not being described in detail in this specification sheets belongs to the known prior art of professional and technical personnel in the field.
Claims (2)
1. a cooling stave leakage inspector, it is characterized in that: it comprises water trap (2), the degassing vessel (1), the PLC Controlling System (3) being connected with water trap (2) control end, the gas analysis meter (4) being connected with water trap (2) output terminal, the data-switching being connected with the signal output part of gas analysis meter (4) and the transport module (5) that are communicated with cooling stave return main, the computer (6) being connected with data-switching and transport module (5), wherein, the input terminus of described water trap (2) is communicated with the vapor pipe (1.1) of degassing vessel (1).
2. cooling stave leakage inspector according to claim 1, is characterized in that: described computer (6) is connected with warning howler (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320478258.3U CN203498402U (en) | 2013-08-06 | 2013-08-06 | Cooling wall water leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320478258.3U CN203498402U (en) | 2013-08-06 | 2013-08-06 | Cooling wall water leakage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203498402U true CN203498402U (en) | 2014-03-26 |
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ID=50329398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320478258.3U Expired - Fee Related CN203498402U (en) | 2013-08-06 | 2013-08-06 | Cooling wall water leakage detection device |
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| Country | Link |
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| CN (1) | CN203498402U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340102A (en) * | 2017-06-16 | 2017-11-10 | 中国南方电网有限责任公司超高压输电公司柳州局 | A kind of converter valve cooling system leakage detection method and system |
| CN107858467A (en) * | 2017-11-10 | 2018-03-30 | 中冶赛迪上海工程技术有限公司 | A kind of blast-furnace cooled water leak hunting method and system |
| CN110295262A (en) * | 2018-03-22 | 2019-10-01 | 宝山钢铁股份有限公司 | A kind of accurate leakage alarm system of blast furnace cross thermometric bar |
-
2013
- 2013-08-06 CN CN201320478258.3U patent/CN203498402U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340102A (en) * | 2017-06-16 | 2017-11-10 | 中国南方电网有限责任公司超高压输电公司柳州局 | A kind of converter valve cooling system leakage detection method and system |
| CN107858467A (en) * | 2017-11-10 | 2018-03-30 | 中冶赛迪上海工程技术有限公司 | A kind of blast-furnace cooled water leak hunting method and system |
| CN110295262A (en) * | 2018-03-22 | 2019-10-01 | 宝山钢铁股份有限公司 | A kind of accurate leakage alarm system of blast furnace cross thermometric bar |
| CN110295262B (en) * | 2018-03-22 | 2021-02-19 | 宝山钢铁股份有限公司 | Accurate leak hunting alarm system of blast furnace cross temperature measurement pole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170719 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Patentee before: Wuhan Iron & Steel (Group) Corp. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20190806 |
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| CF01 | Termination of patent right due to non-payment of annual fee |