CN2172867Y - Leak detector for blast furnace cooling water - Google Patents
Leak detector for blast furnace cooling water Download PDFInfo
- Publication number
- CN2172867Y CN2172867Y CN 93247830 CN93247830U CN2172867Y CN 2172867 Y CN2172867 Y CN 2172867Y CN 93247830 CN93247830 CN 93247830 CN 93247830 U CN93247830 U CN 93247830U CN 2172867 Y CN2172867 Y CN 2172867Y
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- signal processor
- straight tube
- threeway
- metal sleeve
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Abstract
The utility model discloses a leakage detecting device for the cooling water of blast furnaces, composed of a compound probe and a signal processor. The compound probe is mainly composed of three-way assembly parts, a straight pipe, a sealing element, a metal sleeve pipe and a temperature sensor. The signal processor is used for processing signals picked up by the compound probe, and also has the functions of display and warn. The leakage detecting device can accurately measure the temperature electric conductivity and leakage state of the water body of the cooling system of the soft water closed circuit circulation of blast furnaces and the open cooling system of the industrial water of blast furnaces. The utility model has light weight, small volume, convenient carrying, and convenient and simple operation.
Description
The utility model relates to a kind of device that is used to detect blast-furnace soft water closed cycle cooling system and the leakage of service water open-way circulating.
Blast furnace cooling stave damages and leaks, and as can not in time finding, will cause gobbed up, furnace lining, furnace wall to decrease ring and accelerate, big or middle repairing in advance increases with number of times, shortens the life of the blast furnace, even causes iron mouth, air port blast, body of heater to collapse, CO concentration increases in the environment, jeopardizes personal device security.So the leak detection of blast-furnace cooled water is very important.
Existing blast-furnace cooled water leak detection means mainly comprise CO, H in flow detection method (U.S.Patent 409179), Acoustic detection method (the clear 45-9647 of Jap.P.), the installation for blast furnace gas
2Concentration determination method (the clear 56-26683 of Jap.P.).But these method complicated operations, accuracy rate is low, expense is high.
The purpose of this utility model provides a kind of simple to operate, easy to use, accuracy of leak detection is high, cost is low blast-furnace cooled water leakage detection apparatus.
Blast-furnace cooled water leakage detection apparatus of the present utility model is realized above-mentioned purpose by measuring chilled water conductivity and variation of temperature, and this device comprises combined probe and signal processor two parts.Combined probe is made up of threeway built-up member, straight tube, seal member, metal sleeve, temperature sensor and signal extension line waterproof and insulation.One end of threeway built-up member links to each other with an end of straight tube, and the signal extension line passes straight tube, and the straight tube other end is sealed by seal member, infiltrates with waterproof.Two metal sleeves are housed in the threeway built-up member, and coaxial the linking to each other of all the other two ends of first metal sleeve and threeway built-up member, second metal sleeve is positioned at the intersection of straight tube and threeway built-up member, and these two metal sleeves constitute the pair of electrodes of measuring conductivity.The temperature sensor fixing seal is in second metal sleeve, and an end of four signal extension lines links to each other with temperature sensor with described pair of electrodes respectively, and the other end is connected to signal processor after drawing from rubber plug.Signal processor comprises mu balanced circuit, phase-sensitive detection circuit, transport and placing device, A/D converter, display unit and warning circuit, can show conductivity value and temperature value, and when the variation of conductivity pulsing formula, warning circuit is reported to the police.
Blast-furnace cooled water leak locator of the present utility model has the multiple function of leak detection, thermometric, survey conductivity, the leakage alarm accuracy of judgement, and thermometric and survey conductivity error are little, stable reading.Apparatus structure compactness, volume be little, in light weight, be easy to carry, and operates very simple, cheap.
Fig. 1,2,3 and 4 is respectively the combined probe structural representation, the leak detection operation chart of the leak detection operation chart of signal processor circuit schematic diagram, blast furnace soft water closed circulation cooling system, blast furnace service water open-way circulating.
As shown in Figure 1, the overcoat of combined probe is made up of ABS plastic three-way pipe 4 and straight tube 6, and three-way pipe is enclosed within on the straight tube, connects with bonding agent.The upper end of straight tube 6 seals with a rubber plug 7A, and signal wire 8 is drawn from rubber plug, with bonding agent plastic tube 5 is bonded at the outside of straight tube 6 as handle.Two metal sleeves are housed, coaxial the linking to each other of all the other two ends of first metal sleeve 3 and three-way pipe in the three-way pipe; Second metal sleeve is fixed in the straight tube 6 with rubber plug 7B, the one end is positioned at the pipe of straight tube and the crossing part of three-way pipe, these two metal sleeves constitute the pair of electrodes of measuring conductivity, and IC semiconductor temperature sensor 2 fixing seals are in second metal sleeve 1.One end of four signal wires 8 links to each other with sensor with an above-mentioned termination electrode respectively, and the other end is connected to signal processor after drawing from rubber plug 7A.
As shown in Figure 2, the signal processor circuit principle is: A
1Reach R, C and form Wien-bridge oscillator, and the function of voltage stabilizing, output 1000Hz sine wave, A are arranged
2Be voltage follower, make oscillator not be subjected to the influence of load variations, the voltage source of a low output impedance electricity is provided for leak detection and conductance measurement.When the electricity to electrode D of combined probe is led when changing operational amplifier A
3The variable quantity that output is directly proportional with electric conductivity value.But tested systems and non-pure resistance change, and also have capacitive reactance to exist, and for eliminating the influence of electrode capacitance, have set up A
4And A
5Form phase-sensitive detection circuit, A
4The DC voltage of output demonstrates conductivity value with numeral after the A/D conversion.Bubble is arranged through out-of-date in tested water body, conductivity will have obvious variation, and a bubble produces a pulse signal, from A
4The conductivity signal that takes out is through A
6Sampling protection compares with next signal constantly, if A when having bubble to exist
7Alarm lamp flicker indication is reported to the police output voltage values, meanwhile, the conductivity value on the gauge outfit is also unstable, and numeral is beated, and has a declining tendency.When temperature sensor receives variation of temperature, by transport and placing device A
8And can directly demonstrate temperature value after the A/D conversion, switch with K switch when thermometric degree and conductivity.
Fig. 3 shows the leak detection method of operating of blast furnace soft water closed circulation cooling system.At first, then leak detector valve 9 is opened, with rubber connecting hose 10, probe 11, drainage elbow 12 connects, will be popped one's head in and signal processor 13 connects, detect with signal wire 8 with the cooling system step-down.
Fig. 4 shows the leak detection method of operating of blast furnace service water open-way circulating.Probe 11 is inserted in the current of freeing port 14, guarantee that water is full of probe, will pop one's head in and signal processor 13 connects, detect with signal wire 8.
Claims (1)
1, a kind of blast-furnace cooled water leakage detection apparatus, constitute by combined probe and signal processor, it is characterized in that: combined probe is by threeway built-up member waterproof and insulation, straight tube, upper and lower seal member, metal sleeve, temperature sensor, and the signal extension line is formed, one end of threeway built-up member links to each other with an end of straight tube, the signal extension line passes straight tube, the other end of straight tube is sealed by last seal member, infiltrate with waterproof, two metal sleeves are housed in the threeway built-up member, coaxial the linking to each other of all the other two ends of first metal sleeve and threeway built-up member, second metal sleeve is positioned at the intersection of straight tube and threeway built-up member, these two metal sleeves constitute the pair of electrodes of measuring conductivity, the temperature sensor fixing seal is in second metal sleeve, one end of four signal extension lines respectively with above-mentioned pair of electrodes, the temperature sensor fixing seal is in second metal sleeve, one end of four signal extension lines links to each other with temperature sensor with above-mentioned pair of electrodes respectively, the other end is drawn the back and is connected with signal processor from the lower seal parts, signal processor comprises mu balanced circuit, phase-sensitive detection circuit, transport and placing device, A/D converter, display unit and warning circuit, when blast-furnace soft water closed cycle cooling system and blast furnace service water open circuit cooling system was tested, this signal processor can show conductivity value and temperature value; When chilled water leaked, this signal processor can be reported to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93247830 CN2172867Y (en) | 1993-12-20 | 1993-12-20 | Leak detector for blast furnace cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93247830 CN2172867Y (en) | 1993-12-20 | 1993-12-20 | Leak detector for blast furnace cooling water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2172867Y true CN2172867Y (en) | 1994-07-27 |
Family
ID=33820144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93247830 Expired - Fee Related CN2172867Y (en) | 1993-12-20 | 1993-12-20 | Leak detector for blast furnace cooling water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2172867Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453994C (en) * | 2006-10-17 | 2009-01-21 | 宁波赛盟科技发展有限公司 | Auto-controlled gas liquid two purpose leakage detector |
| CN101071654B (en) * | 2007-06-20 | 2010-06-09 | 中国原子能科学研究院 | Single-point contact type sodium leakage detector for sodium-cooled fast reactor main container |
| CN102072799A (en) * | 2010-10-29 | 2011-05-25 | 中国原子能科学研究院 | Conductive liquid detecting device |
| CN106282462A (en) * | 2015-05-28 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of blast furnace sealed cooling system concentrates leakage detection apparatus and method |
| CN109029880A (en) * | 2018-06-28 | 2018-12-18 | 苏州大成电子科技有限公司 | A kind of hand-held leakage inspector based on contact net |
-
1993
- 1993-12-20 CN CN 93247830 patent/CN2172867Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453994C (en) * | 2006-10-17 | 2009-01-21 | 宁波赛盟科技发展有限公司 | Auto-controlled gas liquid two purpose leakage detector |
| CN101071654B (en) * | 2007-06-20 | 2010-06-09 | 中国原子能科学研究院 | Single-point contact type sodium leakage detector for sodium-cooled fast reactor main container |
| CN102072799A (en) * | 2010-10-29 | 2011-05-25 | 中国原子能科学研究院 | Conductive liquid detecting device |
| CN106282462A (en) * | 2015-05-28 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of blast furnace sealed cooling system concentrates leakage detection apparatus and method |
| CN109029880A (en) * | 2018-06-28 | 2018-12-18 | 苏州大成电子科技有限公司 | A kind of hand-held leakage inspector based on contact net |
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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 |