CN102896132A - Method for determining acting range of biogas gas guiding well of municipal solid waste landfill - Google Patents
Method for determining acting range of biogas gas guiding well of municipal solid waste landfill Download PDFInfo
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- CN102896132A CN102896132A CN201210444149XA CN201210444149A CN102896132A CN 102896132 A CN102896132 A CN 102896132A CN 201210444149X A CN201210444149X A CN 201210444149XA CN 201210444149 A CN201210444149 A CN 201210444149A CN 102896132 A CN102896132 A CN 102896132A
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Abstract
The invention provides a method for determining an acting range of a biogas gas guiding well of a municipal solid waste landfill, comprising the following steps of: drilling a plurality of gas guiding wells in the municipal solid waste landfill along the same straight line; selecting the two gas guiding wells to be respectively used as a gas pumping well and a detection well; if the pressure of the detection well is positive pressure, determining that the acting range of the gas guiding wells is less than the distance between the two wells; if the pressure of the detection well is negative pressure, determining that the acting range of the gas guiding wells is more than the distance between the two wells; selecting different gas guiding wells to be combined to gradually and accurately determine the acting range interval of the gas guiding wells; and when the pressure of the detection well is zero or weak negative pressure and the oxygen concentration is more than zero, determining that the distance between the detection well and the gas pumping well is the acting range of the gas guiding wells. According to the method for determining the acting range of the biogas gas guiding well of the municipal solid waste landfill, the problems of the existing method that the engineering period is long and the quantity of the drilled wells is more are solved, and the aim of determining the acting well of the gas pumping well by an optimized scheme is achieved; and the method is convenient to operate and is safe and practical.
Description
Technical field
The present invention relates to the technology of garbage disposal field, particularly relate to a kind of method of definite household refuse landfill sites biogas air guide well sphere of action.
Background technology
Usually refuse landfill is provided with landfill gas nature guide facility at first stage of construction, and behind the garbage loading embeading, the gas that produces is by air guide gabion Natural excrement.But because in garbage loading embeading and earthing operation process, Work machine damages the part wireway easily, cause wireway to occur tilting even phenomenon of rupture, cause guide not smooth; The differential settlement of junk-heap body also can affect the guide effect of landfill gas; In addition, if to blend the covering measure bad for anti-around the landfill yard, can cause gas to around migration, cause potential safety hazard.Therefore, formulate realistic plan for landfill yard landfill gas Collection and use, to ensureing the operation of landfill yard Security Construction, improving atmosphere quality and have great significance.
At present domestic about landfill yard landfill gas production amount with can collect the data of tolerance, initiatively the data of air guide well sphere of action comparatively lack, and various places landfill site seepage prevention measure, coverage condition, compaction, rubbish physics and weather conditions etc. are different, and this all brings certain blindness to engineering feasibility study, detail design and estimation of investment efficiency.
Therefore the air guide well sphere of action before the engineering construction of bleeding determine it is necessary.For specific landfill yard, representational air guide well is carried out exhaustive test draw the extraction well sphere of action, can collect the methane concentration in tolerance and the pipeline gas, and then calculate the collected tolerance of whole landfill yard.Can determine comparatively accurately amount usable thus, and obtain comparatively accurately equipment configuration and generator installed capacity or equipment for purifying and load, thereby for engineering feasibility study and detail design provide comparatively reliably data, improve investment return, reduce investment risk.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of definite household refuse landfill sites biogas air guide well sphere of action, make the existing methods engineering cycle of its solution long, the many problems of well-digging quantity, reach the purpose of determining the extraction well sphere of action with the scheme of optimizing, and easy to operate, safe and practical.
For solving the problems of the technologies described above, the method for a kind of definite household refuse landfill sites biogas air guide well sphere of action of the present invention may further comprise the steps: beat many mouthfuls of air guide wells at household refuse landfill sites along same straight line; Choosing two mouthfuls of air guide wells respectively as extraction well and detection well, is malleation if detect the pressure of well, and then the sphere of action of air guide well is negative pressure less than the distance of these two mouthfuls of wells if detect the pressure of well, and then the sphere of action of air guide well surpasses the distance of these two mouthfuls of wells; Choose different air guide well groups and close, the sphere of action of Query refinement air guide well is interval; When the pressure that detects well is zero or weak negative pressure and oxygen concentration when being not more than zero, the distance that detects well and extraction well is the sphere of action of air guide well.
As a kind of improvement of the present invention, the spacing between the described many mouthfuls of air guide wells is incomplete same.
Has the integral multiple relation between the spacing between the described many mouthfuls of air guide wells.
Described household refuse landfill sites is made a call to six mouthfuls of air guide wells along same straight line, and numbering is followed successively by 1# to 6#, wherein, if the distance between 1# and the 2# is a, then the distance between 2# and the 3# is 3a, and the distance between 3# and the 4# is a, distance between 4# and the 5# is 5a, and the distance between 5# and the 6# is 2a.
The span of described a is 3m≤a≤6m.
At first choosing 1# is extraction well, 2#, and 4#, 5#, 6# are respectively the detection well, the sphere of action of air guide well are determined at first at a～5a 5a～10a in 10a～12a scope, then further determines only air guide well sphere of action.
After adopting such design, the present invention has the following advantages and effect at least:
1, implements after fixing scheme according to method of the present invention, can determine to reduce engineering cost, and part air guide well can also utilize after the gas collection scope of determining optimum, it is unstable to have avoided one by one well-digging to carry out the system that exhaustive test causes, shorten the cycle of well-digging connecting pipe, reduced engineering cost;
2, on average can collect tolerance as the basis take extraction well sphere of action and individual well by the present invention, can estimate then total the collected tolerance of this landfill yard in conjunction with this landfill yard present situation surveying figure data, come the correction model calculated value with these conclusion (of pressure testing) data again, following this landfill yard each year can be extrapolated and landfill tolerance can be collected, simultaneously calculate the landfill gas calorific value according to fan outlet methane concentration value in the exhaustive test, electricity in conjunction with the selected biogas generator of design, the thermal efficiency can be extrapolated the generator number of units of required configuration, estimate generated energy and can supply the waste heat amount, thereby can grind for engineering, design, investment provides comparatively reliably decision-making foundation.
Description of drawings
Above-mentioned only is the general introduction of technical solution of the present invention, and for can clearer understanding technological means of the present invention, the present invention is described in further detail below in conjunction with accompanying drawing and the specific embodiment.
Fig. 1 is the well pitch arrangement figure according to the method setting of a kind of definite household refuse landfill sites biogas air guide well sphere of action of the present invention.
The specific embodiment
The method of a kind of definite household refuse landfill sites biogas air guide well sphere of action of the present invention may further comprise the steps: beat many mouthfuls of air guide wells at household refuse landfill sites, and guarantee that these air guide well arrays are listed on the same straight line; Choosing two mouthfuls of air guide wells respectively as extraction well and detection well, is malleation if detect the pressure of well, and then the sphere of action of air guide well is negative pressure less than the distance of these two mouthfuls of wells if detect the pressure of well, and then the sphere of action of air guide well surpasses the distance of these two mouthfuls of wells; Choose different air guide well groups and close, the sphere of action of Query refinement air guide well is interval; Optimum preparation by spacing between the air guide well, can by exhaustive test determine only air guide well spacing from, when the pressure that detects well is zero or weak negative pressure and oxygen concentration when being not more than zero, the distance that detects well and extraction well is the sphere of action of air guide well.
In order to reduce well-digging quantity, the spacing between can the air guide well is set to incomplete same, also can make it have the integral multiple relation, to enrich the inter-well distance combination, improves the efficient that detects and determine.
To make a call to six mouthfuls of air guide wells as example, see also shown in Figure 1, be 1# to 6# with these six mouthfuls of air guide well opsition dependents order number consecutivelies, wherein, the distance of establishing between 1# and the 2# is a, and then the distance between 2# and the 3# is 3a, distance between 3# and the 4# is a, distance between 4# and the 5# is 5a, and the distance between 5# and the 6# is 2a, can carry out the measurement of following scope:
Take the 1# well as extraction well, the 2# well is monitor well, and the air-extraction function distance of measuring between two wells is a;
Take the 5# well as extraction well, the 6# well is monitor well, and the air-extraction function distance of measuring between two wells is 2a;
Take the 2# well as extraction well, the 3# well is monitor well, and the air-extraction function distance of measuring between two wells is 3a;
Take the 1# well as extraction well, the 3# well is monitor well, and the air-extraction function distance of measuring between two wells is 4a;
Take the 4# well as extraction well, the 5# well is monitor well, and the air-extraction function distance of measuring between two wells is 5a;
Take the 3# well as extraction well, the 5# well is monitor well, and the air-extraction function distance of measuring between two wells is 6a;
Take the 4# well as extraction well, the 6# well is monitor well, and the air-extraction function distance of measuring between two wells is 7a;
Take the 3# well as extraction well, the 6# well is monitor well, and the air-extraction function distance of measuring between two wells is 8a;
Take the 2# well as extraction well, the 5# well is monitor well, and the air-extraction function distance of measuring between two wells is 9a;
Take the 1# well as extraction well, the 5# well is monitor well, and the air-extraction function distance of measuring between two wells is 10a;
Take the 2# well as extraction well, the 6# well is monitor well, and the air-extraction function distance of measuring between two wells is 11a;
Take the 1# well as extraction well, the 6# well is monitor well, and the air-extraction function distance of measuring between two wells is 12a.
If the span of a is decided to be 3m≤a≤6m, then above-mentioned six mouthfuls of wells can be determined ultimate range in 36m～72m scope, optimum air guide well operating distance.Can by the permutation and combination of extraction well and monitor well, measure respectively spacing and be respectively a～12a, the combination of totally 12 kinds of spacings.Then judge initiatively (dynamically) gas collection well sphere of action according to monitor well well head data in the independent pumping process, if namely zero or weak negative pressure and oxygen concentration be not more than zero monitor well and be the extraction well sphere of action apart from the distance of extraction well.
During implementation, can first take 1# as extraction well, detect 2#, 4#, 5#, the well head data of 6#, can measure respectively air guide well sphere of action is a, 5a, 10a, 12a, pressure according to the detection well is malleation or negative pressure, can at first operating distance be determined at a～5a 5a～10a, in 10a～12a scope, then further determine only air guide well sphere of action.
The above; it only is preferred embodiment of the present invention; be not that the present invention is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.
Claims (6)
1. the method for a definite household refuse landfill sites biogas air guide well sphere of action is characterized in that may further comprise the steps:
Beat many mouthfuls of air guide wells at household refuse landfill sites along same straight line;
Choosing two mouthfuls of air guide wells respectively as extraction well and detection well, is malleation if detect the pressure of well, and then the sphere of action of air guide well is negative pressure less than the distance of these two mouthfuls of wells if detect the pressure of well, and then the sphere of action of air guide well surpasses the distance of these two mouthfuls of wells;
Choose different air guide well groups and close, the sphere of action of Query refinement air guide well is interval;
When the pressure that detects well is zero or weak negative pressure and oxygen concentration when being not more than zero, the distance that detects well and extraction well is the sphere of action of air guide well.
2. the method for a kind of definite household refuse landfill sites biogas air guide well sphere of action according to claim 1 is characterized in that the spacing between the described many mouthfuls of air guide wells is incomplete same.
3. the method for a kind of definite household refuse landfill sites biogas air guide well sphere of action according to claim 1 is characterized in that having between the spacing between the described many mouthfuls of air guide wells integral multiple relation.
4. the method for a kind of definite household refuse landfill sites biogas air guide well sphere of action according to claim 1, it is characterized in that described household refuse landfill sites makes a call to six mouthfuls of air guide wells along same straight line, numbering is followed successively by 1# to 6#, wherein, if the distance between 1# and the 2# is a, then the distance between 2# and the 3# is 3a, and the distance between 3# and the 4# is a, distance between 4# and the 5# is 5a, and the distance between 5# and the 6# is 2a.
5. the method for a kind of definite household refuse landfill sites biogas air guide well sphere of action according to claim 4, the span that it is characterized in that described a is 3m≤a≤6m.
6. the method for a kind of definite household refuse landfill sites biogas air guide well sphere of action according to claim 4 is characterized in that:
At first choosing 1# is extraction well, 2#, and 4#, 5#, 6# are respectively the detection well, the sphere of action of air guide well are determined at first at a～5a 5a～10a in 10a～12a scope, then further determines only air guide well sphere of action.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107737788A (en) * | 2017-10-30 | 2018-02-27 | 浙江鑫直建筑有限公司 | A kind of sanitary filling field landfill gas collection processing system implementing and method |
| CN108430656A (en) * | 2015-11-13 | 2018-08-21 | 马尔科安东尼尼个人公司 | The system and method for controlling collecting methane equipment |
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| US7866921B2 (en) * | 2009-09-11 | 2011-01-11 | Stefan Stamoulis | Tool and method for extracting landfill gas |
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| CN1857806A (en) * | 2006-06-09 | 2006-11-08 | 浙江大学 | Logistic regulation and monitoring type domestic garbage ecological landfill unit |
| CN101879516A (en) * | 2009-05-06 | 2010-11-10 | 中国环境科学研究院 | Improved urban domestic garbage landfilling structure and landfilling treatment method |
| US7866921B2 (en) * | 2009-09-11 | 2011-01-11 | Stefan Stamoulis | Tool and method for extracting landfill gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108430656A (en) * | 2015-11-13 | 2018-08-21 | 马尔科安东尼尼个人公司 | The system and method for controlling collecting methane equipment |
| CN107737788A (en) * | 2017-10-30 | 2018-02-27 | 浙江鑫直建筑有限公司 | A kind of sanitary filling field landfill gas collection processing system implementing and method |
| CN107737788B (en) * | 2017-10-30 | 2019-10-25 | 杭州天子岭发电有限公司 | A kind of sanitary filling field landfill gas collection processing system implementing and method |
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Inventor after: Yin Ran Inventor after: Kang Huijie Inventor after: Jing Guorui Inventor after: Qu Zhiyun Inventor after: Yang Jingbo Inventor after: Zhang Xingyu Inventor after: Su Baofeng Inventor after: Shi Yang Inventor after: Peng Ran Inventor before: Yin Ran Inventor before: Qu Zhiyun Inventor before: Kang Huijie Inventor before: Ding Shicun Inventor before: Jing Guorui Inventor before: Peng Ran Inventor before: Yang Jingbo Inventor before: Su Baofeng |
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Free format text: CORRECT: INVENTOR; FROM: YIN RAN QU ZHIYUN KANG HUIJIE DING SHICUN JING GUORUI PENG RAN YANG JINGBO SU BAOFENG TO: YIN RAN KANG HUIJIE JING GUORUI QU ZHIYUN YANG JINGBO ZHANG XINGYU SU BAOFENG SHI YANG PENG RAN |
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Address after: 100120 building 36, Deshengmenwai street, Xicheng District, Beijing Patentee after: CHINA URBAN CONSTRUCTION DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address before: 100120 0619, block a, 36 Deshengmenwai street, Xicheng District, Beijing Patentee before: CHINA URBAN CONSTRUCTION DESIGN & Research Institute |
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