CN203948956U - The leak test plant of directly buried pipeline - Google Patents
The leak test plant of directly buried pipeline Download PDFInfo
- Publication number
- CN203948956U CN203948956U CN201420350246.7U CN201420350246U CN203948956U CN 203948956 U CN203948956 U CN 203948956U CN 201420350246 U CN201420350246 U CN 201420350246U CN 203948956 U CN203948956 U CN 203948956U
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- leak detection
- detection tube
- alarm equipment
- pipeline
- level alarm
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- 238000012360 testing method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 239000004020 conductor Substances 0.000 claims abstract description 18
- 238000007689 inspection Methods 0.000 claims abstract description 15
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 7
- 239000004571 lime Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract description 9
- 208000019901 Anxiety disease Diseases 0.000 abstract description 2
- 230000036506 anxiety Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 10
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- 238000013461 design Methods 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 206010009866 Cold sweat Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000010242 baoji Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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Abstract
Propose a kind of leak test plant of directly buried pipeline, belonged to aqueduct leak hunting technology field.This leak test plant comprises: inspection shaft; Leak detection tube, its top is exposed in described inspection shaft, the level height of bottom is between the level height of directly buried pipeline center line and the level height of cushion lime, and the sealing of the pipeline bottom of described leak detection tube, offers some netted permeable holes on the tube wall of top, pipeline bottom predetermined length; The pipe diameter of described leak detection tube is set to allow water-level alarm equipment to pass through; Water-level alarm equipment, described water-level alarm equipment is positioned at the pipeline bottom of described leak detection tube; Signal conductor pipe laying, described signal conductor pipe laying passes described inspection shaft and is communicated with described leak detection tube so that be connected to the signal conductor of described throw-in type water-level alarm equipment and introduces in described signal conductor pipe laying by described leak detection tube.This programme has solved the technical problems such as leak detection that underground space anxiety needs again direct-burried waterpipe, has simple, convenient and effectively realizes direct-burried in the plurality of advantages such as leak detection of industrial premises internal pressure waterpipe.
Description
Technical field
The utility model belongs to aqueduct leak hunting technology field, relates in particular to a kind of leak test plant of directly buried pipeline.
Background technique
" direct-burried " technology, refers to one of laying method of utilities pipeline.In industrial premises, direct-burried can be understood as pipeline is directly imbedded in the underground sand gravel backfill layer of factory building.Generally, the directly buried pipeline being embedded in husky gravel blanket cannot be hunted leak.The waterpipe that provided underground need to be hunted leak, conventional system of laying is that raceway groove lays or tunnel lays.These two kinds of system of laying engineering cost are very high, particularly tunnel style more makes construction investment significantly increase, and being subject to technically very large restriction in special engineering application, severe patient makes scheme can not implement and be forced to relocate, and causes larger increase of investment.No matter be pipe trench or tunnel, the structure scale of construction of itself will occupy underground sizable space.At spacious infrastructure pipe trench or tunnel, substantially there is not technical risk, but circulating water pipeline in all like large-scale power station main buildings, when the cooling water pipeline in building surface in big industrial factory arranges pipe trench or tunnel, just have to consider the restriction of factory building foundation structure to space, this restraining factors have been conclusive sometimes, and pipe laying scheme is had to subversive impact.
Popularization along with large-size thermal power plant cigarette tower unification scheme, because cooling tower arranges that by conventional A row are outer changing over the position of conventional chimney after stove arranges, in order to save investment and to reduce operating cost, the design of increasing power plant can be faced with preferential selection recirculated cooling water pipeline and pass through the underground problem of main building after by stove.But because main building underground structure is complicated, space is nervous and strict to pipeline rout requirement, especially at foundation soil, has in the engineering of settlement by soaking feature, not yet has up to now and after stove, draws the engineering practice that connects circulating water pipeline.The engineering that faces this problem is nearly all to select regular circulation waterpipe to draw and connect outside A row, and the technological scheme being connected with cooling tower by house-service gas pipe vestibule, is exactly conventional directly buried technology scheme, and general seepage prevention design is done in pipe layers below, but does not consider leak detection.Because directly buried pipeline substantially Dou Shi plant area lays, just in case occur to leak, also unlikelyly affect the structural safety of main building main building and the safe operation of power plant.But the deficiency of this scheme is pipeline vestibule and can occupies the very large size of power plant general layout, and the adverse consequences that causes increase, the conduit running resistance increment of duct length to cause operating cost to increase due to flow process roundabout.There is extremely other after stove, draw the engineering that connects due to the design of also not hunting leak of the particularity of its engineering geological condition or other factors.Present stage adopts the thermal power plant of cigarette tower unification technique, consider in cooling tower that air mass flow and heat are the manyfolds of flue gas, the hot air discharge that is mixed in flue gas and cooling tower, there is very large rate of heat release, can utilize the heat-flash air stream in cooling tower that atmosphere hoist height is increased, reach good diffusion effect, reduce the flooring concentration of flue gas pollutant, do not need to arrange again specially tall and big chimney.Clammy unit adopts the heat supply unit that has Huaneng Beijing Thermal Power Plant, Datang Harbin the first 2 * 300MW of thermoelectricity plant, the Guo Hua Xuzhou 2 * 1000MW of the genco unit of cigarette tower unification technique.Along with the rise of indirect air cooling Construction of Unit, the three tower unification techniques that desulfurizing tower is arranged in indirect cool tower are also widely used.Three tower unification techniques are that desulfuration absorbing tower is arranged in cooling tower, flue gas after desulfurization is discharged through top, absorption tower, by cooling tower, export discharged to atmosphere, adopt Baoji Second Power Plant that has of three tower unification techniques to extend the overcritical indirect air cooling unit of 2 * 600MW engineering, the Shanxi 2 * 300MW of ubac gangue power plant indirect air cooling unit engineering, the Qinling Mountains, the Huaneng Group 2 * 600MW of electricity generating corporation, Ltd indirect air cooling unit engineering, the 2 * 600MW of Shen Tou Power Generation Corporation Ltd. indirect air cooling unit engineering.The circulating water pipeline of above-mentioned all engineerings is connected to cooling tower by the outer connection piping corridor of drawing of A row, and pipeline all adopts directly buried technology, does not all take antiseepage method.Construction investment, operating cost are all higher, and floor space is bigger than normal.If the underground space allows, the technology that the existing leak detection of directly buried pipeline may adopt in engineering design also only has a kind of shallow pipe trench formula structure, and shallow pipe trench forms with reinforced concrete construction conventionally, and its Main Function is weight and the antiseepage water conservancy diversion of supporting pipeline.Because major works pipe diameter is larger, weight is larger, even shallow pipe trench also the strength and stiffness of claimed structure part reach certain level, this just causes the pipe trench structure scale of construction larger, engineering work load is larger, investment cost increases.And also very large for realizing the difficulty of construction of pipe trench function, be difficult for accomplishing to guarantee according to designing requirement, to realize its function completely, its rigidity safety of the pipe trench of long distance is also subject to the impact of many factors, just in case there is crack in distortion, its leak detection function is just had a greatly reduced quality, and directly can have influence on the structural safety of main body construction of structures.
The patented technology that is applied at present engineering or head it off is all almost to take measures at thin, stifled, procuratorial organ's face, and dredging stifled measure also will increase no small engineering work load after all.The antiseepage cushion lime of the protection factory building foundation in fact requiring according to design code itself just can play the stifled effect of dredging.How taking a kind of simple leak hunting technology can find in time that direct-burried is in underground press water pipeline generation leakage phenomenon, remind operation personnel to determine to take measures fundamentally to address the leakage concern, is urgent problem.
Model utility content
The purpose of this utility model is to provide a kind of novel leak test plant of directly buried pipeline, overcomes the above-mentioned problems in the prior art, realizes floor space still less and the object such as detection speed faster.
For realizing above object, the utility model proposes a kind of leak test plant of directly buried pipeline, described leak test plant comprises: inspection shaft, basset or flush with ground and facilitate user to check the working condition of leak test plant in described inspection shaft upper end; Leak detection tube, described leak detection tube is embedded between directly buried pipeline and factory building foundation, and its top is exposed in described inspection shaft, and the level height of bottom is between the level height of directly buried pipeline center line and the level height of cushion lime; The pipeline bottom sealing of described leak detection tube, offers some netted permeable holes on the tube wall of top, pipeline bottom predetermined length, and the pipeline outside parcel with netted permeable hole intercepts some layers of Unidirectional water permeable material of mud; The pipe diameter of described leak detection tube is set to allow water-level alarm equipment to pass through; Water-level alarm equipment, described water-level alarm equipment is throw-in type water-level alarm equipment, described throw-in type water-level alarm equipment is positioned at the pipeline bottom of described leak detection tube; Signal conductor pipe laying, described signal conductor pipe laying passes described inspection shaft and is communicated with described leak detection tube so that be connected to the signal conductor of described throw-in type water-level alarm equipment and introduces in described signal conductor pipe laying by described leak detection tube.
According to an aspect of the present utility model, described leak detection tube perpendicular to ground, bury underground or at a predetermined angle oblique cutting enter ground and bury underground.
According to an aspect of the present utility model, described leak test plant is also included in the channel lifting wire rope connecting on described throw-in type water-level alarm equipment, so that throw-in type water-level alarm equipment is lifted out from leak detection tube.
According to an aspect of the present utility model, described signal conductor is also connected to Surveillance center.
As can be seen here, this programme discloses a kind of leak hunting technology of direct-burried waterpipe, and its effect is to solve the technical problem that underground space anxiety needs again the leak detection of direct-burried waterpipe.Object is further to reduce engineering construction initial cost, simple, convenient and effectively realize direct-burried in the leak detection of industrial premises internal pressure waterpipe.
Accompanying drawing explanation
Fig. 1 is the plan view of the leak test plant of the directly buried pipeline that the utility model proposes;
Fig. 2 is the sectional drawing of the leak test plant of the directly buried pipeline that the utility model proposes;
Fig. 3 is the partial enlarged drawing of the leak test plant of the directly buried pipeline that the utility model proposes.
Embodiment
The following stated is better embodiment of the present utility model, does not therefore limit protection domain of the present utility model.
Basic principle of the present utility model is: (its material should have certain corrosion resistance at direct-burried, in the underground press water pipeline of factory building and the appropriate location between factory building foundation, to bury vertical (or having several angle) pipeline in ground underground, to guarantee in life cycle, there is not penetrability corrosion, pipeline section meets level alarm for water and installs, maintenance requires), duct bottom sealing, make it to form an independently space, elevation of bottom can be below tested press water pipeline center line, arbitrary position on cushion lime, on the tube wall of suitable length above duct bottom, open some netted permeable holes, the some layers of Unidirectional water permeable material that have the pipeline outside parcel obstruct mud of permeable hole, pipeline is embedded in factory building backfill, elevate above the soil in top, then throw-in type level alarm for water is placed in to duct bottom.Once there be tested press water pipeline to leak, occur, the water in the backfill of bleeding 108 can enter by the permeable hole of leak detection pipeline leak detection pipeline bottom lock space and form water level, triggers level alarm for water, reaches leak detection object.
Below with reference to accompanying drawing 1-3, the utility model is elaborated, in accompanying drawing, identical reference character represents same or analogous parts.Wherein Fig. 3 is the details enlarged view of reference character 111 indication parts in Fig. 2.
Referring to Fig. 1-Fig. 3.The leak test plant of described directly buried pipeline 104 comprises inspection shaft 102, leak detection tube 101, signal conductor pipe laying 103, water-level alarm equipment 107.Basset or flush with ground in described inspection shaft upper end, to facilitate user to check the working condition of leak test plant.Described leak detection tube is embedded between directly buried pipeline and factory building foundation, and its top is exposed in inspection shaft, and the level height of bottom is between the level height 109 of directly buried pipeline center line and the level height of cushion lime 110.Cushion lime 110 is above former soil layer 112.The pipeline bottom sealing of described leak detection tube, offers some netted permeable holes 113 on the tube wall of top, the bottom predetermined length of described leak detection tube, and the pipeline outside parcel with netted permeable hole intercepts the some layers of Unidirectional water permeable material 113 of mud.Described water-level alarm equipment is throw-in type water-level alarm equipment, and the pipe diameter of described leak detection tube is set to allow described water-level alarm equipment to pass through, and described throw-in type water-level alarm equipment is positioned at the pipeline bottom of described leak detection tube; In addition, described signal conductor pipe laying passes described inspection shaft, and is communicated with described leak detection tube, so that be connected to the signal conductor 105 of described throw-in type water-level alarm equipment, by leak detection tube, introduces in described signal conductor pipe laying.As Fig. 1, shown in 2, described leak detection tube is buried underground perpendicular to ground, yet is not limited to this, also can be other suitable angles with ground, as long as bottom and top are positioned at, the appropriate location leaking can be detected.In addition,, in order to make maintenance convenient, on described throw-in type water-level alarm equipment, be also connected with channel lifting wire rope 106, so that throw-in type water-level alarm equipment is lifted out from leak detection tube.As shown in Figure 1, can be other with the some described leak test plants of arranged at predetermined intervals at directly buried pipeline, to detect concrete which section of directly buried pipeline, leak.In addition, described water-level alarm equipment can be connected to Surveillance center to realize monitoring by described channel wire, but this is not the utility model emphasis place, therefore repeats no more.
Should note; the embodiment that the utility model proposes and application be the object for illustrating only; not as the restriction to the utility model protection domain; those skilled in the art can modify to meet actual demand to embodiment of the present utility model, such as the material mutation of leak detection pipeline, the mutation of form shape; embedding method difference; the difference of permeable hole quantity and form, parcel seepy material and difference, the variations such as water level alarm form all belong to this patent protection domain.Any modification of making, be equal to replacement, improvement etc. within design philosophy of the present utility model and principle, also all belong to the protection domain of this patent.
Claims (4)
1. a leak test plant for directly buried pipeline, is characterized in that, described leak test plant comprises:
Inspection shaft, basset or flush with ground and facilitate user to check the working condition of leak test plant in described inspection shaft upper end;
Leak detection tube, described leak detection tube is embedded between directly buried pipeline and factory building foundation, and its top is exposed in described inspection shaft, and the level height of bottom is between the level height of directly buried pipeline center line and the level height of cushion lime; The pipeline bottom sealing of described leak detection tube, offers some netted permeable holes on the tube wall of top, pipeline bottom predetermined length, and the pipeline outside parcel with netted permeable hole intercepts some layers of Unidirectional water permeable material of mud; The pipe diameter of described leak detection tube is set to allow water-level alarm equipment to pass through;
Water-level alarm equipment, described water-level alarm equipment is throw-in type water-level alarm equipment, described throw-in type water-level alarm equipment is positioned at the pipeline bottom of described leak detection tube;
Signal conductor pipe laying, described signal conductor pipe laying passes described inspection shaft and is communicated with described leak detection tube so that be connected to the signal conductor of described throw-in type water-level alarm equipment and introduces in described signal conductor pipe laying by described leak detection tube.
2. leak test plant according to claim 1, is characterized in that:
Described leak detection tube perpendicular to ground, bury underground or at a predetermined angle oblique cutting enter ground and bury underground.
3. leak test plant according to claim 1, is characterized in that:
Described leak test plant is also included in the channel lifting wire rope connecting on described throw-in type water-level alarm equipment, so that throw-in type water-level alarm equipment is lifted out from leak detection tube.
4. leak test plant according to claim 1, is characterized in that:
Described signal conductor is also connected to Surveillance center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420350246.7U CN203948956U (en) | 2014-06-26 | 2014-06-26 | The leak test plant of directly buried pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420350246.7U CN203948956U (en) | 2014-06-26 | 2014-06-26 | The leak test plant of directly buried pipeline |
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| Publication Number | Publication Date |
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| CN203948956U true CN203948956U (en) | 2014-11-19 |
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| CN201420350246.7U Expired - Fee Related CN203948956U (en) | 2014-06-26 | 2014-06-26 | The leak test plant of directly buried pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442631A (en) * | 2015-12-29 | 2016-03-30 | 中国市政工程西北设计研究院有限公司 | Double plastic pipe and plastic shaft type leakage detecting device for collapsible loess region |
| CN106437692A (en) * | 2016-08-23 | 2017-02-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Deep karst leakage channel detection structure and method based on water level of inner pipe of drill pipe |
-
2014
- 2014-06-26 CN CN201420350246.7U patent/CN203948956U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442631A (en) * | 2015-12-29 | 2016-03-30 | 中国市政工程西北设计研究院有限公司 | Double plastic pipe and plastic shaft type leakage detecting device for collapsible loess region |
| CN105442631B (en) * | 2015-12-29 | 2018-04-06 | 中国市政工程西北设计研究院有限公司 | The two-tube leak detection facility with plastic well of Collapsible Loess District plastics |
| CN106437692A (en) * | 2016-08-23 | 2017-02-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Deep karst leakage channel detection structure and method based on water level of inner pipe of drill pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |