CN2296010Y - Water leakage detection device for cooling wall of blast furnace - Google Patents
Water leakage detection device for cooling wall of blast furnace Download PDFInfo
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- CN2296010Y CN2296010Y CN 97219372 CN97219372U CN2296010Y CN 2296010 Y CN2296010 Y CN 2296010Y CN 97219372 CN97219372 CN 97219372 CN 97219372 U CN97219372 U CN 97219372U CN 2296010 Y CN2296010 Y CN 2296010Y
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- cooling
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- 238000001816 cooling Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 title abstract description 27
- 229920000297 Rayon Polymers 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000008234 soft water Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000000498 cooling water Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008092 positive effect Effects 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000003034 coal gas Substances 0.000 description 13
- 238000007689 inspection Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a blast furnace stave detection device that leaks belongs to metallurgical stove and detects the technique, is applicable to patrolling and examining of blast furnace soft water airtight circulative cooling system and looks for leaking. The device is connected between a return water connecting box and the tail ends of the cooling wall branch pipes in series, collects gas in cooling water, identifies the gas by a gas identification element, and transmits a signal to a monitoring center, so that the cooling wall branch pipes can be quickly inspected for leakage on line. Has the positive effects of strengthening the production of the blast furnace and prolonging the service life of the furnace body. Compared with the prior art, the method has the advantages of less investment, low cost, good effect and safe operation.
Description
The utility model relates to a kind of blast furnace cooling stave leakage inspector, is applicable to the leakage detection of patrolling and examining of blast furnace soft water closed circulation cooling system, belongs to the metallurgical furnace kiln detection technique.
Present blast furnace cooling device has open cooling system of service water and soft water airtight circulating cooling system.The blast furnace cooling stave detection technique of leaking, the open cooling system of service water is the artificial experience leak detection always, adopts drainpipe coal gas examination combustion method.Soft water airtight circulating cooling system is continued to use the leak detection of this method, one by one the leakage detection time long, make the interior water emptying of arm easily, burn out intact cooling arm, this will threaten blast furnace production, and blast furnace production and technical indication and converter life are greatly reduced.Therefore people carry out many researchs, hundreds of electromagnetic flowmeters and hundreds of thermocouple thermometers for example are installed, to the triple on-line computer supervisory systems of difference in flow, water temperature difference, the thermal load of soft closed system chilled water.Behind the cooling arm operation 2-3, begin to leak, leakage point both leaked in stove, simultaneously again to a cooling tube drainage coal gas, instrument, instrument can't measure the true value of cooling water flow with analog signals, more than 30 leakage point takes place in the blast furnace cooling stave arm, and computer system does not have any sign reflection of leaking, and fails to produce a desired effect.
On March 2nd, 1994 Chinese patent disclosure a kind of " closed soft water cooling loop of blast furnace leak detection system and method ", application number 92109780.8, August 28 1992 applying date, its objective is the airtight cooling loop of blast-furnace soft water is carried out online leak detection, its formation is to set up the apparatus of a cover leak detection loop and no potential head soft water leak detection loop separately, comprises water pump, reverse checkvalve, feed pipe, return pipe, tank etc.During leak detection, the leak detection loop is connected with blast furnace cooling arm one by one, cools off for soft water with leak detection system, utilize the high precision water level gauge, high precision flow, high precision CO test paper, whether have leakage, judge three grades of leak detectings of leakage point position with the CO test paper if monitoring whole cooling system and arm.Its main deficiency is: the leak detection system pipeline will cool off the arm two ends with blast furnace and be connected one by one, and blast furnace has hundreds of arms, and the workman operates under high temperature, high coal gas environment, and the location, two ends is difficult up and down for arm, maloperation easily, and leak detection speed is slow.The gas that is captured can only manually be differentiated with the high precision test paper in addition, can not realize the fast inspection leakage detection, can not satisfy requirement of safe production.
The purpose of this utility model be overcome exist in the above-mentioned prior art be not, a kind of blast furnace cooling stave leakage inspector that is connected between backwater header and the cooling arm end is provided, realizes online, quick, the safety patrol inspection leakage detection system of the airtight cooling loop of soft water.
The purpose of this utility model is achieved in that between backwater header and cooling wall arm end, a kind of blast furnace cooling stave leakage inspector that is connected and composed by bend pipe by air collector and reverse checkvalve of contacting.Air collector is that tank body 1, bottom that pipe is made have water inlet pipe 2, by-pass pipe 3 integrally welded.The dividing plate 4 that has gas port is tightly connected with tank body 1, tank body 1 is interior every dividing upper and lower two Room, last chamber has automatically controlled circuit board 5 and gas to differentiate box 6, in the gas recognition component 7 of coalingging, 7 circuit connects automatically controlled circuit board 5, gas differentiates that box 6 and dividing plate 4 are tightly connected, and the bottom communicates with the gas port of dividing plate 4, and tank body 1 upper end and top cover 18 are tightly connected.There is inverted cone 8 chamber under in jar, and have three securing members 9 and the tank body 1 uniform by the cone periphery are fastenedly connected.Solenoid valve 10 is fastenedly connected on the awl baseplane of cone 8, and the blob of viscose on its valve stifled 11 is pressed in the center gas port of dividing plate 4.Described reverse checkvalve is that the valve body made of pipe 12 is integrally welded with two tube heads 13,14 of band edge plate, and the empty ball valve core 16 of punching axle is arranged in the valve body, and the center pit that two axial ends respectively is positioned at the support plates 15 of welding in the tube head 13,14 slides.Tube head 13 is connected with by-pass pipe 3 by bend pipe 17.
The purpose of this utility model can also take following measure to realize:
Indoor inverted conical body 8 under the air collector, cone bottom diameter is the 0.90-0.97 of tank body 1 internal diameter, and optimum diameter is 0.96 of tank body 1 internal diameter, and vertex of a cone height is 0.5 with the diameter ratio at the awl end.
The utility model has following advantage compared with the prior art:
1. leak detection speed is fast.This device is connected in cooling arm end, and chilled water is all by this device, and the impact cone, make gas, moisture from.Reduce pressure of supply water, reverse checkvalve cuts off the path of arm and whole cooling loop automatically, and the coal gas of stove internal leakage become trapped in the air collector very soon, and a header 12-24 root arm is a leak detection group, and leak detection speed is fast.
2. leak detection signal is correct.This device adopts the gas, the coal gas recognition component that capture in the chilled water to differentiate coal gas, and with the switching signal transmission, the solenoid valve exhaust signal transmits continuously, dual signal transmission warning function is arranged, catch the gas rate and reach more than 1%, the coal gas that tiny leakage point leaks can trap, and guarantees that signal is correct.
3. leak detection job safety.The leak detection operation reduces the hydraulic pressure of water supply header with electrically-controlled valve in Surveillance center, catching gas, exhaust, discriminating coal gas finishes in this device automatically, exhaust signal and affirmation have the arm breakage signal of coal gas to be transferred to Surveillance center, the workman must not arrive the district's operation of on-the-spot coal gas, and realization blast furnace cooling stave arm safety on line is patrolled and examined leakage detection.
4. if the bridge piece of cooling wall arm is all replaced by this device, can a step find leakage point.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Accompanying drawing is a diagrammatic cross-section of the present utility model.
The utility model is connected and composed by bend pipe by air collector and reverse checkvalve.Air collector is that tank body 1, bottom that weldless steel tube is made have water inlet pipe 2, by-pass pipe 3 integrally welded, the dividing plate 4 that gas port arranged and tank body 1 usefulness are buckled thread and heatproof glue is tightly connected, tank body 1 is interior every dividing upper and lower two Room, last chamber has automatically controlled circuit board 5 and gas to differentiate box 6, the circuit of interior dress CO-electric transition element 7,7 connects automatically controlled circuit board 5, and gas differentiates that box 6 bottoms and dividing plate 4 are tightly connected, and communicate with gas port, tank body 1 upper end and top cover l8 are tightly connected.In jar down the chamber inverted cone 8 is arranged, periphery is with four screws and tank body 1 fastening being located by connecting, the cone bottom diameter of cone 8 be tank body 1 internal diameter 0.96, vertex of a cone height is 0.5 with the cone bottom diameter ratio.Two screws of solenoid valve 10 usefulness are connected on the awl baseplane of cone 8, and the valve of band blob of viscose blocks up 11, compresses the center gas port of dividing plate 4, and solenoid valve 10 is drawn lead 19, passes dividing plate 4 and is connected with automatically controlled circuit board 5.Reverse checkvalve is the valve body made of weldless steel tube 12 and two tube head l3 that have end plate, 14 integrally welded, the empty ball valve core l6 that the punching axle is arranged in the valve body, the center pit that two axial ends is positioned at the support plate 15 of welding in the tube head 13,14 slides, and tube head 13 is connected with by-pass pipe 3 by bend pipe 17.
The utility model leak detection is achieved in that
Surveillance center will intend the pressure of supply water of one group of header of inspection with electric control valve, be reduced to and be lower than blast-furnace hot-air pressure 50kPa, make the hydraulic pressure of cooling wall arm all be lower than gas pressure in the level stove, the hydraulic pressure in this moment water inlet pipe 2 and the hydraulic balance of backwater header, current are static, the empty ball valve core 16 of reverse checkvalve is drowned oneself and is closed, the flowing water path that has cut off arm and whole cooling loop, coal gas in the stove enters into the cooling arm from leakage point, coal gas become trapped in the air collector, automatically controlled circuit board 5 automatic control electromagnetic valve are quantitatively differentiated the gas that box 6 dischargings capture to gas, and with the working signal of solenoid valve with through 7 identifications of gas recognition component, confirm to have the arm leakage signal of coal gas,, be transferred to Surveillance center through lead fairlead 20 by lead with the switching signal of 36 volts of power supplys.When the pressure in the water inlet pipe 2 during greater than the water pressure of backwater header, empty ball valve core 16 is opened automatically.Gas in the discriminating box 6 is outside lead fairlead 20 is overflowed jar.Check that one group of header with the 3-5 branch clock time pressure that can resume water supply, enters patrolling and examining of next group header.
Claims (2)
1. blast furnace cooling stave leakage inspector, connect and compose by bend pipe by air collector and reverse checkvalve, it is characterized in that described air collector is that pipe is made tank body (1), water inlet pipe (2) is arranged at the bottom, by-pass pipe (3) is integrally welded, the dividing plate (4) that has gas port is tightly connected with tank body (1), tank body (1) is interior on branch, following two Room, last chamber has automatically controlled circuit board (5) and gas to differentiate box (6), in the gas recognition component (7) of coalingging, (7) circuit connects automatically controlled circuit board (5), gas differentiates that box (6) and dividing plate (4) are tightly connected, the bottom communicates with the gas port of dividing plate (4), tank body (1) upper end is tightly connected with top cover (18), there is inverted cone (8) chamber under in jar, have three securing members (9) and the tank body (1) uniform by the awl bottom perimeter are fastenedly connected, solenoid valve (10) is fastenedly connected on the awl baseplane of inverted conical body (8), blob of viscose on its valve stifled (11) is pressed in the center gas port of dividing plate (4), described reverse checkvalve, be pipe valve body of making (12) and two tube heads (13) that have end plate, (14) integrally welded, the empty ball valve core (16) that the punching axle is arranged in the valve body, two axial ends respectively is positioned at tube head (13), (14) center pit of the support plate (15) of welding slides in, and tube head (13) is connected with by-pass pipe (3) by bend pipe (17).
2. blast furnace cooling stave leakage inspector according to claim 1, it is characterized in that jar interior inverted conical body (8) of chamber down, cone bottom diameter is the 0.90-0.97 of tank body (1) internal diameter, and optimum diameter is 0.96 of a tank body internal diameter, and vertex of a cone height is 0.5 with the cone bottom diameter ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97219372 CN2296010Y (en) | 1997-07-02 | 1997-07-02 | Water leakage detection device for cooling wall of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97219372 CN2296010Y (en) | 1997-07-02 | 1997-07-02 | Water leakage detection device for cooling wall of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2296010Y true CN2296010Y (en) | 1998-10-28 |
Family
ID=33935416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97219372 Expired - Fee Related CN2296010Y (en) | 1997-07-02 | 1997-07-02 | Water leakage detection device for cooling wall of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2296010Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432525C (en) * | 2003-12-03 | 2008-11-12 | 泰勒麦克拉伦有限公司 | Water ingress detection system |
| CN100456009C (en) * | 2006-03-17 | 2009-01-28 | 邯郸钢铁股份有限公司 | Leakage-checking spacing method of blast furnace |
| CN103031396A (en) * | 2012-08-02 | 2013-04-10 | 宝钢集团新疆八一钢铁有限公司 | Method for leakage detecting and handling of blast furnace soft water closed circulating cooling system |
| CN105200177A (en) * | 2014-06-25 | 2015-12-30 | 金流阀门（上海）有限公司 | Positioning leak detection instrument for blast furnace cooling water |
| CN106870940A (en) * | 2017-02-20 | 2017-06-20 | 国泰消防科技股份有限公司 | High pressure gas holder gas leak detection device |
| CN113551842A (en) * | 2021-06-23 | 2021-10-26 | 鞍钢蒂森克虏伯（重庆）汽车钢有限公司 | Method and system for detecting leakage of annealing furnace water cooling equipment on line |
| CN115508512A (en) * | 2022-09-20 | 2022-12-23 | 秦皇岛天沐冶金机械设备制造有限公司 | Blast furnace circulating water leakage detection device, system and method |
-
1997
- 1997-07-02 CN CN 97219372 patent/CN2296010Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432525C (en) * | 2003-12-03 | 2008-11-12 | 泰勒麦克拉伦有限公司 | Water ingress detection system |
| CN100456009C (en) * | 2006-03-17 | 2009-01-28 | 邯郸钢铁股份有限公司 | Leakage-checking spacing method of blast furnace |
| CN103031396A (en) * | 2012-08-02 | 2013-04-10 | 宝钢集团新疆八一钢铁有限公司 | Method for leakage detecting and handling of blast furnace soft water closed circulating cooling system |
| CN105200177A (en) * | 2014-06-25 | 2015-12-30 | 金流阀门（上海）有限公司 | Positioning leak detection instrument for blast furnace cooling water |
| CN105200177B (en) * | 2014-06-25 | 2017-07-28 | 金流阀门（上海）有限公司 | Blast-furnace cooled water positioning leakage inspector |
| CN106870940A (en) * | 2017-02-20 | 2017-06-20 | 国泰消防科技股份有限公司 | High pressure gas holder gas leak detection device |
| CN113551842A (en) * | 2021-06-23 | 2021-10-26 | 鞍钢蒂森克虏伯（重庆）汽车钢有限公司 | Method and system for detecting leakage of annealing furnace water cooling equipment on line |
| CN115508512A (en) * | 2022-09-20 | 2022-12-23 | 秦皇岛天沐冶金机械设备制造有限公司 | Blast furnace circulating water leakage detection device, system and 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 |