CN102818121A - Leakage testing method of self-overflow type external line drainage pipeline - Google Patents
Leakage testing method of self-overflow type external line drainage pipeline Download PDFInfo
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- CN102818121A CN102818121A CN201210261906XA CN201210261906A CN102818121A CN 102818121 A CN102818121 A CN 102818121A CN 201210261906X A CN201210261906X A CN 201210261906XA CN 201210261906 A CN201210261906 A CN 201210261906A CN 102818121 A CN102818121 A CN 102818121A
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Abstract
The invention relates to a leakage testing method of a self-overflow type external line drainage pipeline, belonging to a pipeline leakage testing method. A left operation well and a right operation are respectively excavated and built at the left end and the right end of an external line drainage pipeline, blocking plates are respectively arranged at the left end and the right end of the external line drainage pipeline; a left bent pipe joint connected with a left visual plastic pipe is arranged in an opening in the left blocking plate, the left visual plastic pipe is communicated with a water tank arranged on the ground; a right bent pipe joint connected with a right visual plastic pipe is arranged in an opening in the right blocking plate, the upper section of the right visual plastic pipe vertically extending out of the ground is fixed on an upright rod, the vertical height of the right visual plastic pipe is 0.5-1 m higher than the water tank; t scales are marked on the right visual plastic pipe, external connected tap water is evenly and slowly added in the external line drainage pipeline, and a test water level can be observed in the left visual plastic pipe and the right visual plastic pipe, if no obvious water level is observed, no large leakage exists in the external line drainage pipeline, so that a leakage test is qualified.
Description
Technical field
The invention belongs to the pipe leakage test method, especially relate to a kind of leak test method of outside line drainage pipe.
Background technique
At present; The installation of outside line drainage pipe generally all is the experience construction that operator rely on oneself; And at the outside line drainage pipe back majority is installed and is not done leak test; Therefore the seepage situation of outside line drainage pipe is more serious, and what carried this outside line drainage pipe inside all is domestic sewage and municipal water down, if must cause environmental pollution toward external leakage in a large number.
Summary of the invention
The objective of the invention is to propose a kind of leak test method of self-overflow type outside line drainage pipe
,Not only simple to operate, with low cost, and test effect is good, reduces pollution sources, helps environmental protection.
The objective of the invention is to realize like this: a kind of leak test method of self-overflow type outside line drainage pipe (being called for short the leak test method),
BeLeft and right operation well is excavated and builds by laying bricks or stones at position corresponding to the outside line drainage pipe right ends of treating leak test respectively, is made for industry personnel operation, treats that at this right ends of the outside line drainage pipe of leak test installs the shutoff plate respectively and seal; Left elbow is installed in perforate on left shutoff plate; On left elbow, connect left visual plastic tube, this left visual plastic tube elevates above the soil and is arranged on the ground water tank that the water level gauge and the water outlet of band valve are housed and is connected, and in the perforate of the top of right shutoff plate right elbow is installed; On right elbow, connect right visual plastic tube; The hypomere of this right visual plastic tube is vertically and vertically elevates above the soil, and stretches and the stage casing of right visual plastic tube is a level left side, stretches on the epimere of right visual plastic tube is vertically vertically again and be fixed (binding) is being inserted on the ground vertical posts; This vertical rod can be reinforcing bar or bamboo pole; The vertical height of the epimere of right visual plastic tube should be higher than 0.5-1 meter of the height of water tank, simultaneously on the epimere of the visual plastic tube in the right side with the corresponding mark of crayon scale, be convenient to the height of the interior water level of observation tube; The internal diameter of this left and right visual plastic tube all is not less than 25mm; In addition, offer threaded sewage draining exit and corresponding plug screw or the blowdown valve installed in the bottom of right shutoff plate, be used to discharge water, blowdown; Then; Evenly annotate tap water lentamente in the water tank with external running water pipe, water outlet and the left visual plastic tube of tap water through water tank bottom band valve flows into to be treated in the outside line drainage pipe of leak test, till this tap water is annotated and overflowed from the visual plastic tube in the right side; Close the valve of water tank bottom; At this time the water level of left and right visual inside of plastic tubes is adjusted to the observation place apart from plastic tube upper end-hole 100mm, viewing test water level in left and right visual plastic tube, short of tangible drawdown; This outside line drainage pipe does not just have big seepage; Leak test is qualified, because of the seal degree of each interface of outside line drainage pipe is lower, has slight, slow seepage to belong to normal.
The leak test method of self-overflow type outside line drainage pipe proposed by the invention
,Not only simple to operate, with low cost, and test effect is good, has reduced pollution sources, helps environmental protection.
Combine accompanying drawing and embodiment that the leak test method of self-overflow type outside line drainage pipe proposed by the invention is described further at present.
Description of drawings
Fig. 1
BeWhen the leak test method of self-overflow type outside line drainage pipe proposed by the invention is used schematic representation.
Among Fig. 1: 1, operation well 2, left elbow 3, left visual plastic tube 4, water tank 5, water level gauge 6, vertical rod 7, right visual plastic tube 8, shutoff plate 9, blowdown valve.
Embodiment
Embodiment:
In the drainage pipe construction of five kilometers long of municipal administrations in Jiangling, Nanjing, owing to the construction period needs, therefore give two tame units in charge of construction with engineering subcontract, struggle hard day and night through everybody, finally in contract construction period completion the last week construction.Yet this moment, the Party A requires these five kilometers drainage pipes are carried out leak test, and the time in a week is carried out leak test to five kilometers drainage pipes, if according to traditional test method, on the duration, can't accomplish.This moment, we just adopted this leak test method,, divided ten sections and carried out leak test simultaneously respectively as operation well 1 with the cloudy well of each blowdown; Utilize ten discarded metal buckets, all repack water tank 4 into, water level gauge 5 is installed and on the right side of water tank 4 at the water outlet of the left side of water tank 4 mounting strap valve; Made 20 shutoff plates 8 simultaneously, the lucite pipe of having bought the 80m internal diameter and be 30mm has formed the utensil of ten cover test seepages as visual plastic tube; In the right ends of each section drainage pipe shutoff plate 8 is installed respectively and is sealed, left elbow 2 is installed in perforate on left shutoff plate 8, on left elbow 2, connects left visual plastic tube 3; This left visual plastic tube 3 elevates above the soil and is arranged on the ground water outlet that the water tank 4 of water level gauge 5 is housed and is connected; In the perforate of the top of right shutoff plate 8 right elbow is installed, on right elbow, is connected right visual plastic tube 7, the hypomere of this right visual plastic tube 7 is vertically and vertically elevates above the soil; And being a level left side, the stage casing of right visual plastic tube 7 stretches; Stretch on the epimere of right visual plastic tube 7 is vertically vertically again and be fixed (binding) is being inserted on the ground vertical posts 6 (reinforcing bar), the height that the vertical height of the epimere of right visual plastic tube 7 is higher than water tank 4 is 0.5 meter, on the epimere of the visual plastic tube 7 in the right side, marks scale with the crayon correspondence simultaneously; Height with water level in the observation tube; In addition, offer threaded sewage draining exit and the corresponding blowdown valve 9 of installing in the bottom of right shutoff plate 8, be used to discharge water, blowdown; Then, evenly in water tank 4, annotate tap water lentamente with external running water pipe, tap water is treated in the drainage pipe of leak test through the water outlet and 3 inflows of left visual plastic tube of water tank 4 bottom band valves; Till this tap water was annotated and overflowed from the visual plastic tube 7 in the right side, the valve of closing water tank 4 bottoms was at this time adjusted to the observation place apart from plastic tube upper end-hole 100mm with left and right visual plastic tube 3,7 inner water levels; Viewing test water level in left and right visual plastic tube 3,7; In the process of test, the comparatively serious leakages in three places occurred, all in time handled, only just five kilometers drainage pipes have been carried out the leak test test with 5 day time; Guaranteed that engineering hands over as agreed as scheduled; Expense amounts to more than 900 yuan, has practiced thrift expense, has obtained Party A's favorable comment.
Claims (3)
1. the leak test method of a self-overflow type outside line drainage pipe; Be to excavate and building by laying bricks or stones operation well (1) respectively corresponding to the position of the outside line drainage pipe right ends of treating leak test; This left and right operation well (1) is made for industry personnel operation, treats that at this right ends of the outside line drainage pipe of leak test installs shutoff plate (8) respectively and seal, and goes up perforate at left shutoff plate (8) left elbow (2) is installed; Go up connection left visual plastic tube (3) at left elbow (2); This left visual plastic tube (3) elevates above the soil and is arranged on the ground water tank (4) that the water outlet of water level gauge (5) and band valve is housed and is connected, and in the top perforate of right shutoff plate (8) right elbow is installed, and on right elbow, connects right visual plastic tube (7); The hypomere of this right visual plastic tube (7) is vertically and vertically elevates above the soil; Stretch and the stage casing of this right visual plastic tube (7) is a level left side, stretch and be fixed on the epimere of right visual plastic tube (7) is vertically vertically again and be inserted on the ground vertical posts (6), the vertical height of the epimere of right visual plastic tube (7) should be higher than 0.5-1 meter of the height of water tank (4); On the epimere of the visual plastic tube in the right side (7), mark scale simultaneously with the crayon correspondence; With the height of water level in the observation tube, in addition, offer threaded sewage draining exit and corresponding plug screw or the blowdown valve (9) installed in the bottom of right shutoff plate (8); Then; Evenly annotate tap water lentamente in the water tank (4) with external running water pipe, tap water treats in the outside line drainage pipe of leak test through the water outlet and left visual plastic tube (3) inflow of water tank (4) bottom, till this tap water is annotated and overflowed from the visual plastic tube in the right side (7); Close the valve of water tank (4) bottom; At this time that left and right visual plastic tube (3,7) is inner water level is adjusted to the observation place apart from plastic tube upper end-hole 100mm, viewing test water level in left and right visual plastic tube (3,7), short of tangible drawdown; This outside line drainage pipe does not just have big seepage, and leak test is qualified.
2. the leak test method of self-overflow type outside line drainage pipe according to claim 1 is characterized in that this vertical rod (6) is reinforcing bar or bamboo pole.
3. the leak test method of self-overflow type outside line drainage pipe according to claim 1 is characterized in that the internal diameter of this left and right visual plastic tube (3,7) is not less than 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210261906XA CN102818121A (en) | 2012-07-27 | 2012-07-27 | Leakage testing method of self-overflow type external line drainage pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210261906XA CN102818121A (en) | 2012-07-27 | 2012-07-27 | Leakage testing method of self-overflow type external line drainage pipeline |
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| CN102818121A true CN102818121A (en) | 2012-12-12 |
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| CN201210261906XA Pending CN102818121A (en) | 2012-07-27 | 2012-07-27 | Leakage testing method of self-overflow type external line drainage pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243545A (en) * | 2019-07-12 | 2019-09-17 | 中冶天工集团天津有限公司 | A kind of drainage pipeline water filling test device and its application method |
| CN110260166A (en) * | 2019-07-12 | 2019-09-20 | 中冶天工集团天津有限公司 | A kind of underground piping air tightness checking device and its application method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202158358U (en) * | 2011-04-22 | 2012-03-07 | 北京昊科航科技有限责任公司 | Leakage monitoring device for gravity-flow pipeline |
-
2012
- 2012-07-27 CN CN201210261906XA patent/CN102818121A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202158358U (en) * | 2011-04-22 | 2012-03-07 | 北京昊科航科技有限责任公司 | Leakage monitoring device for gravity-flow pipeline |
Non-Patent Citations (2)
| Title |
|---|
| 李六生: "城镇排水管道的检查方法", 《科技信息》 * |
| 黄益丹: "市政排水工程试水试验", 《中国市政工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243545A (en) * | 2019-07-12 | 2019-09-17 | 中冶天工集团天津有限公司 | A kind of drainage pipeline water filling test device and its application method |
| CN110260166A (en) * | 2019-07-12 | 2019-09-20 | 中冶天工集团天津有限公司 | A kind of underground piping air tightness checking device and its application method |
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Application publication date: 20121212 |