CN104006938B - A kind of method for detecting of horizontal water-tube cooler leakage point - Google Patents
A kind of method for detecting of horizontal water-tube cooler leakage point Download PDFInfo
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- CN104006938B CN104006938B CN201410248767.6A CN201410248767A CN104006938B CN 104006938 B CN104006938 B CN 104006938B CN 201410248767 A CN201410248767 A CN 201410248767A CN 104006938 B CN104006938 B CN 104006938B
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Abstract
The invention discloses the disposable method for detecting of a kind of horizontal water-tube cooler many places leakage point, the tube bank at the cooler bottom connects liquid level tube, is changed by tank gage surveying record liquid level, draws liquid level time plot, the flex point of figure determines the height of leakage point.The present invention can disposably measure multiple leakage point, saves time, laborsaving, saves fund.
Description
Technical field
The invention belongs to coking industry heat-exchange apparatus service technique field, particularly relate to a kind of horizontal water-tube cooler leakage point
Method for detecting.
Background technology
The coke-stove gas commonly used horizontal water-tube cooler cooling coal gas of coking industry, coal gas is walked outside tube bank, and cooling water walks pipe
In, horizontal water-tube cooler use a period of time after due to corrosion or expand with heat and contract with cold appearance tube bank reveal, cause horizontal water-tube cooler to cool down
Device function reduction, needs repair and maintenance to recover function, needs to check whether horizontal water-tube cooler cooler bundle is let out before maintenance
Dew and the position revealed, prior art leak hunting method is some, and some methods are complicated, and some methods are time-consuming.
Summary of the invention
Present invention aim at simple in construction being provided, reasonable, easy to operate a kind of horizontal water-tube cooler leakage point being installed
Method for detecting.
The technical scheme is that the method for detecting of a kind of horizontal water-tube cooler leakage point, this horizontal water-tube cooler is provided with
Water pipe, return pipe, upper hose is provided with upper hose valve, and return pipe is provided with return pipe drain valve and backwater pipe valve, and upper hose is provided with
Sluicing arm, sluicing arm is provided with upper hose drain valve, and return pipe top sets breather, and breather is provided with Ventilating duct valve, ventilation
Pipe mouth of pipe height is not less than the superiors' tube bank of horizontal water-tube cooler, and the sluicing arm mouth of pipe connects a liquid level tube, liquid level tube vertically to
Upper and upper orifice is not less than the superiors' tube bank of horizontal water-tube cooler；Stop being cooled medium into horizontal water-tube cooler, close return pipe and let out
Water valve, backwater pipe valve, upper hose valve, open upper hose drain valve, Ventilating duct valve, by breather upper orifice or liquid level tube top
The cooling water that mouth of pipe water filling or utilization are left makes liquid level reach highly to be not less than the superiors' tube bank of horizontal water-tube cooler, and setting can be felt
Answer the tank gage of liquid level change in liquid level tube, utilize tank gage measure in liquid level tube liquid level changing value h and corresponding time value t and remember
Record h, t, until level stability, be linked to be a curve in rectangular coordinate system by each point as coordinate points using t and corresponding h, curve
The h value of flex point is i.e. corresponding with the height of leakage point.
Described tank gage is digital display type tank gage, and display end is located at indoor.
The liquid level signal input computer of described tank gage, by computer recording level value and corresponding time, by calculating
Described curve drawn by machine.
Described liquid level tube is flexible pipe, and harness is on support bar.
Described liquid level tube is stereoplasm tube, may be selected to be steel pipe.
Beneficial effect: the present invention can use the cooling water that horizontal water-tube cooler uses easily and efficiently, by stopping into transverse tube
Cooler is cooled medium, utilizes the pressure differential of horizontal water-tube cooler pipe inner cooling water, cooling water to leak from pipe internal leakage point, it is judged that
The position whether horizontal water-tube cooler is revealed and revealed；By drawing water level decreasing curve, disposable detection leakage point place
Height, only need an external liquid level tube and tank gage, it is not necessary to complicated equipment investment, material market is the most on sale, it is not necessary to special
Customized；Measure the liquid level of liquid level tube with tank gage, remove danger and Exposure to Sunlight wind that workman climbs from, i.e. can observe liquid in indoor
Position change, tank gage can record more level value, is substantially reduced error and the time delay of eye-observation liquid level, and then draws out more
Fine curve, it is to avoid the omission of " flex point ".
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is curve exemplary plot of the present invention；
In figure: 1-horizontal water-tube cooler 2-exhaust stack 3-Ventilating duct valve 4, return pipe 5-return pipe drain valve 6-
Upper hose 7-upper hose valve 8-upper hose drain valve 9-liquid level tube 10-sluicing arm 11-backwater pipe valve 12-
Breather 13-support bar 14-tank gage.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing thereof, the invention will be further described.
The method for detecting of a kind of horizontal water-tube cooler leakage point, connects a liquid level tube, liquid in the tube bank of the horizontal water-tube cooler bottom
Position pipe can directly pick out with bottom tube bank, in order to horizontal water-tube cooler damage is minimum, can communicate restraining with the bottom
Arranging arm on water inlet pipe, arm connect liquid level tube, liquid level tube extends to the high-rise tube bank of horizontal water-tube cooler, can be vertical
, (vertical scale need to be set) that can be the most oblique, can be stereoplasm tube, can be flexible pipe (need to be by supporter supports), if liquid
The high liquid level (HLL) that position Guan Suoneng reaches is not less than the superiors' tube bank of horizontal water-tube cooler and can directly or observe by auxiliary device
The change of liquid level, is recorded；Make water can be full of the tube bank of horizontal water-tube cooler each layer and liquid level observation pipe, liquid level tube liquid level
Reach the highest, the valve logical with tube bank of below the superiors' tube bank of horizontal water-tube cooler can be closed when cooling water, remove
The liquid level of one and air contact is at least stayed on the outer top of the liquid level tube mouth of pipe, if liquid level tube liquid level is not up to the highest, then by liquid level tube
Port adds water, it is also possible to by liquid level observation pipe end after the valve closing logical with tube bank below the superiors' pipe of horizontal water-tube cooler
Mouthful or other to be filled to liquid level with the opening of one plane of the superiors' pipe of horizontal water-tube cooler the highest；Liquid level tube liquid level reaches the highest
After, observe the SEA LEVEL VARIATION of liquid level tube, water level decreasing shows that horizontal water-tube cooler tube bank has leakage, records process at set intervals
Time t and corresponding level value h until water level no longer reduce, using record t value and corresponding h value as coordinate points, i.e. point (t,
H) or (h, t) at rectangular coordinate system described point, then by these point be linked to be a curve, curve there is flex point, the h of coordinate at flex point
It is worth corresponding with leakage point place height.
Concrete as it is shown in figure 1, this horizontal water-tube cooler is provided with upper hose 6, return pipe 4, upper hose 6 is provided with upper hose valve
7, return pipe 4 is provided with return pipe drain valve 5 and backwater pipe valve 11, and upper hose 6 is provided with sluicing arm 10, and sluicing arm 10 is provided with
Water pipe drain valve 8, return pipe 4 top sets breather 12, and breather 12 is provided with Ventilating duct valve 3, and breather 12 mouth of pipe height is the lowest
The superiors in horizontal water-tube cooler restrain, and described liquid level tube 9 is connected at sluicing arm 10 mouth of pipe, in order to record the change of liquid level
Value, liquid level tube 9 can be transparent tube and indicate scale value, stops, into horizontal water-tube cooler steam, closing return pipe drain valve 5, return pipe
Valve 11, upper hose valve 7, open upper hose drain valve 8, Ventilating duct valve 3, by breather 12 upper orifice or transparent tube 9 upper tube
Cooling water to the liquid level that mouth water filling or utilization are left is not less than the superiors' tube bank of horizontal water-tube cooler, observes liquid level in liquid level tube 9
Change constantly record level value and corresponding time value, until level stability, with time value t as transverse axis, level value h is that the longitudinal axis is retouched
Point, is linked to be a curve by each point, and the ordinate value of point of inflexion on a curve is i.e. corresponding with the height of leakage point.
Liquid level tube 9 can be lucite pipe or transparent glass tube, if transparent tube 9 is soft Guan Zexu is bundled in support bar 13
Go up or lifted by lifting rope, if frangible glass tubing also need to be by supporter supports.If during soft pipe, pipe is likely to occur folding
Curved, so also indicating scale value on support bar 13 surface, can be as the scale of SEA LEVEL VARIATION in pipe.
Can also survey the change of liquid level with additive method, as surveyed with tank gage, now liquid level tube need to adapt to tank gage measurement
The mode of liquid level, the liquid level change of whole fluid column can measure by tank gage, preferably stereoplasm tube, such as steel pipe, if soft
Matter pipe then bore to reach avoids greatly bending vertical fixing.Tank gage can be the formula, float-ball type, ultrasound wave, red of submerging
Outside lines etc., as long as measuring the liquid level change of liquid level tube and can recording.For workman not by Exposure to Sunlight wind, the display of tank gage
End be located at indoor, complete observed and recorded on ground, remove from workman climb measure danger, preferably digital display type tank gage, in order to avoid
Pointer-type reading is slow and is forbidden.Level value and time value data are inputted computer utilizes the excel of software such as office to draw
Curve chart, more preferable way is that the signal sent by tank gage is connected into computer, coordinates corresponding software directly to be painted by computer
Go out curve chart, provide doubtful leak point height, it is achieved automatic measurement, for enabling a computer to receive the signal that tank gage sends,
Can increase signal conversion or the multiplying arrangement of necessity, tank gage signal is converted into computer, and can to store the technology of data be ripe
Technology, can directly be applied, and software can select from existing data processing software, it is possible to is specially designed for this liquid level
The software that experiment curv is drawn,.The tank gage 14 that Fig. 1 is given is floating type, eliminates supporter in figure, other kind liquid levels
Instrument, the contactless ullage that is located at, contact induction end is located on liquid level or at the bottom of liquid.
The principle of the method is: water is filled with horizontal water-tube cooler tube bank and liquid level tube, and other valves close, the water surface and air
Having contact, if tube bank has leakage point, due to the existence of hydraulic pressure, water can flow out from leakage point, causes liquid level to decline, and liquid level declines
Hydraulic pressure is gradually lowered, and liquid level fall off rate is also to reduce, but changes inconspicuous, until the tube bank of liquid level and a certain layer
Leakage point maintains an equal level, and the tube bank of this leakage point is no longer leaked, owing to having lacked this leakage point, liquid level fall off rate there will be one unexpected
Reducing, show the most on the graph is one " flex point ", and the level value that this point is corresponding is exactly the height of leakage point, this
This leakage point found out the most easily by sample.
For being more readily understood, providing a profile example, as in figure 2 it is shown, curve overall trend is to decline, curve is the highest
Point begins to decline, and the slope of curve reduces slowly, is bordering on straight line, and during curve declines, slope occurs that a range of decrease is bigger
Some A, example occurs in that A, B, C, D, E, F point that totally 6 slopes change suddenly, reduces to zero to slope during F point, liquid level is high
Degree keeps constant, i.e., without leakage point below F point height, i.e. " flex point ", the value of corresponding vertical coordinate is exactly liquid level to these 6 points
Value, what level value was corresponding is exactly the height of leakage point.
Claims (6)
1. a method for detecting for horizontal water-tube cooler leakage point, this horizontal water-tube cooler is provided with upper hose (6), return pipe (4), upper water
Pipe (6) is provided with upper hose valve (7), and return pipe (4) is provided with return pipe drain valve (5) and backwater pipe valve (11), it is characterised in that:
Upper hose (6) is provided with sluicing arm (10), and sluicing arm (10) is provided with upper hose drain valve (8), and return pipe (4) top sets ventilation
Pipe (12), breather (12) is provided with Ventilating duct valve (3), and breather (12) mouth of pipe height is not less than the superiors' pipe of horizontal water-tube cooler
Restrainting, sluicing arm (10) mouth of pipe connects a liquid level tube (9), and liquid level tube (9) is straight up and upper orifice is not less than horizontal water-tube cooler
The superiors tube bank；Stop being cooled medium into horizontal water-tube cooler, close return pipe drain valve (5), backwater pipe valve (11), upper hose
Valve (7), opens upper hose drain valve (8), Ventilating duct valve (3), by breather (12) upper orifice or liquid level tube (9) upper orifice
The cooling water that water filling or utilization are left makes liquid level reach highly to be not less than the superiors' tube bank of horizontal water-tube cooler, and setting can sense liquid
The tank gage of position pipe (9) interior liquid level change, utilizes tank gage measurement liquid level tube (9) interior liquid level changing value h and corresponding time value t also
Record h, t, until level stability, by each point be linked to be a curve, curve as coordinate points in rectangular coordinate system using t and corresponding h
The h value of flex point i.e. corresponding with the height of leakage point.
2. the method for detecting of horizontal water-tube cooler leakage point as claimed in claim 1, it is characterised in that: described tank gage is digital display
Formula tank gage, display end is located at indoor.
3. the method for detecting of horizontal water-tube cooler leakage point as claimed in claim 1, it is characterised in that: the liquid level of described tank gage
Signal input computer, by computer recording level value and corresponding time, by curve described in computer drawing.
4. the method for detecting of horizontal water-tube cooler leakage point as claimed in claim 1, it is characterised in that: described liquid level tube (9) is
Flexible pipe, harness is on support bar (13).
5. the method for detecting of horizontal water-tube cooler leakage point as claimed in claim 1, it is characterised in that: described liquid level tube (9) is
Stereoplasm tube.
6. the method for detecting of horizontal water-tube cooler leakage point as claimed in claim 5, it is characterised in that: described liquid level tube (9) is
Steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410248767.6A CN104006938B (en) | 2014-06-06 | 2014-06-06 | A kind of method for detecting of horizontal water-tube cooler leakage point |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248767.6A CN104006938B (en) | 2014-06-06 | 2014-06-06 | A kind of method for detecting of horizontal water-tube cooler leakage point |
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| CN104006938A CN104006938A (en) | 2014-08-27 |
| CN104006938B true CN104006938B (en) | 2016-08-17 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546384B (en) * | 2015-09-17 | 2019-01-08 | 鞍钢股份有限公司 | Leakage detection method for transverse pipe primary cooler |
| CN106525475B (en) * | 2016-11-23 | 2018-12-25 | 成都航天通信设备有限责任公司 | One kind, which is commentd warmly, estimates system and method |
| CN109211486A (en) * | 2018-10-16 | 2019-01-15 | 广东小天才科技有限公司 | Leakage detection device and detection method applied to electronic product |
| CN111947863A (en) * | 2020-07-09 | 2020-11-17 | 奇瑞新能源汽车股份有限公司 | Method and equipment for detecting leakage of cooling liquid of energy storage device of electric automobile |
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| US6832504B1 (en) * | 2003-11-19 | 2004-12-21 | Be Intellectual Property, Inc. | Liquid sensing system for an aircraft galley cooler using a two phase working fluid |
| CN101446512A (en) * | 2008-09-26 | 2009-06-03 | 上汽通用五菱汽车股份有限公司 | Automotive fuel leak detection method |
| CN201793537U (en) * | 2010-09-08 | 2011-04-13 | 鞍钢股份有限公司 | Device for improving condensate quality of lower section groove of transverse pipe primary cooler |
| CN103307925A (en) * | 2013-05-22 | 2013-09-18 | 济钢集团有限公司 | Transverse tube-type cooling tower with leakage testing and overhauling function and overhauling and leakage testing method |
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Patent Citations (5)
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| US6832504B1 (en) * | 2003-11-19 | 2004-12-21 | Be Intellectual Property, Inc. | Liquid sensing system for an aircraft galley cooler using a two phase working fluid |
| CN101446512A (en) * | 2008-09-26 | 2009-06-03 | 上汽通用五菱汽车股份有限公司 | Automotive fuel leak detection method |
| CN201793537U (en) * | 2010-09-08 | 2011-04-13 | 鞍钢股份有限公司 | Device for improving condensate quality of lower section groove of transverse pipe primary cooler |
| CN203307300U (en) * | 2013-05-21 | 2013-11-27 | 中冶焦耐工程技术有限公司 | Lower-segment replenisher pre-cooling device of cross-pipe primary cooler |
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| CN104006938A (en) | 2014-08-27 |
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